UNITED STATES DEPARTMENT OF THE INTERIOR 

AROLD L. ICKES, Secretary 

GEOLOGICAL SURVEY 

W. C. MIDNDENRALL, Director 

Water-Supply Paper 928 

SURFACE WATER SUPPLY 

of the UNITED STATES 

1941 

PART 8 

WESTERN GULF OF MEXICO BASINS 

Prepared under the direction of 

GLENN L . PARKER, Chief Hydraulic Engineer 

AND OP D. H. BARBER, H. C. BOLON (acting), C. E. ELLSWORTH, ROBERT FOLLANSBEE, 

BERKELEY JOHNSON, AND E. B. RICE (acting), District Engineers 

In cooperation with the States of 

COLORADO, LOUISIANA, NEW MEXICO, AND. TEXAS 

UNITED STATES 

GOVERNMENT PRINTING OFFICE 

WASHINGTON : 1948 

For eale by the Superintendent of Documents, Washington, D. C. - - Price 40 centa (paper cover) 

CONTENTS 

Scope ot work . .......... . .............. . ................. . ............. . ........... . De finition ot terms .... .. ............... .. .. .. ....... . ............ . . . ...... .. ...... . Explanation ot data .. .. ... . ..... . ............ . .......................... . . ... ..• .... Accuracy ot t!eld data and computed results .. .... . . . ......... . .. . .. . . .... . ......... . Publications ..... . ... ... . ............... .. .. ... .. ... ..... .... ... . .................•. Records ot discharge collected by agencies other than the Geological Survey ... . ...•. Cooperation ........................ . ........................ . . . .................... . Division ot work .......... .. .... .. . . .......................... . . . ..... : ............ . Gaging-station records . . ... . ................................ . . . ........... . ... . . ... . Mermentau R1 ver Basin . ....... .. .. . . .... . ........... ... . ......... . . ...... . ...•..... Bayou Nezplque near Bae!le, La ...... .. .................. . .. ......... ......•..... Bayou Des Cannes near Eunice, La .. ..... . .......... . ...... ..•.... . . ...... ... ..... Calcasleu R1ver Basin ............ .. ........ ... ... .... . ... . .. .•. . .... . .. ..... ...... Galcasleu River near Oberlin, La ............... . . . .. . ..........•..•.... . ..•. ... . c"alcael eu R1ver near Kinder, La . . .... . .... .. .... .. . .... .. .. .. .. . ... . ........... . Whiskey Chitto Creek near Oberlin, La . ......• . ............................... . .. Bundick Creek near Dry Creek, La . ......................•..................•..... Sabine R1 ver Bas! n ..... . ......................•................................. . . Sabine R! ver near Mineola, Tex ............. . ............... .. .. .... . .. .. . . ..... . Sabine River near Gladewater, Tex ................... . ..... . .. . ... . ............. . Sabine R1 ver near Tatum, Tex . ..... ........... ........ .. . .. : .. . .......... ....... . Sabine R1ver at Logansport, La . . . ... .. ... .. .. ............ ...... . ... . . .... .. ..•.. Sabine River near M!lam, Tex ........ . ...... ..... .. .• . ..•. .. ............... . ..... Sabine R1ver near Bon W!er, Tex ...................................... . ......... . Sabine R1ver near Rulltt, Tex ......................................... . ...... . .. Lake Fork ot Sabine R1 ver near Qui man, Tex .................................... . Big Sandy Creek near Big Sandy, Tex ........ ...... .. . ............... . ........... . Cherokee Bayou near Elderv!lle, Tex ................•............................ Neches River Basin ............. . ... .. .....•.................... . . . . .......... ..... Neches River near Neches, Tex . ............ .•...... ... . ....•....... . .......... ... Neches R1ver near Diboll, Tex .......... ... ... .. ............... .... . ............ . Neches River near Rockland, Tex ........................... . ..........•.......... Neches R1 ver at Evadale, Tex ....•...... .. ............ . . .. .. . ..... . ...•.. . . .. . . . . Mud Creek near Jacksonville, Tex ..... . ......... .. .. .... ............ .. •. ....... . . Angelina R1ver near Alto, Tex .......................... . .... ......... ....... . .. . Angelina R1ver near LutkinL Tex .......................... . .................... .. Angelina R1ver at Horger, Tex ......... . ....................................... .. Striker Creek near Summerfield, Tex ........ . ... . .. . ... . ....... . .. . ......... . ... . Attoyac Bayou near Chireno, Tex .................. ... .... ..... ... . ......... .. . .. . VIllage Creek near Kountze, Tex .. ............. .................. . . . ........ . ... . Trin!cy R!ver Bae!n ......... . ............................... . ................•.... West Fork ot Trlni tY R1 ver at F'ort Worth, Tex ................................. .. West F'ork ot Tr!nicy R1ver at Orand Prairie, Tex .............................. .. Trinity River at Dallas, Tex .........................•. ..... . .... . ......... . . . . . Trlnlcy River near Rosser, Tex ............ . . ..... . ....... . ..•.... ... .. . ..... . .. . Trinity R1ver near OekWood, Tex ............... . ............................... .. Trinity R1ver near Midway, Tex ............•..................................... Trinity R1ver at R1verside, Tex .. ................ ... . .... . .................... .. Trinity River at Romayor, Tex ............................................... .•.. Tr!ni tY R1 ver at Ll berty, Tex ........ . . ...... . .. . . ............. . ..........•.. , .. Big Sandy Creek near Bridgeport, Tex . . . .............. .. ........................ . Clear Fork ot Trinity R1ver at F'ort worth, Tex ................................ .. Elm F'ork ot Tr!nlcy R1ver near Carrollton, Tex .. .. ......... .... ............... .. Denton Creek near Roanoke, Tex .. ... . .. . ... ... . . . .... ........ . .... . ............. . East F'ork ot Trinity R1ver near Rockwall, Tex ............................ . ... . . . Cedar Creek near Mabank, Tex ........ . .. .. . . ..... .. ......•....... . .............•. Chambers Creek near Corsicana, Tex .................. . ..............•............ Richland Creek near Richland, Tex .............................................. . San Jacinto Rtver Basin .... . .......................... .... .. .... ...... ........... . · West Fork of San Jacinto River near Conroe, Tex . .... .. .. ....... .... . ..... . ..... . West Fork of San Jacinto R1ver near Humble, Tex .. .......... . . ...... . ........... . San Jacinto River near Huttman, Tex ............................•........... . .... Spring Creek near Spring, Tex ........................... . .............. . ... . .. .. East F'ork of San Jacinto R1ver near Cleveland, Tex .................... . .... . .. .. Buffalo Bayou at Houston, Tex .......... . ..... ..... ............ . ..... ... ... . .... . Whiteoak Bayou at Houston, Tex . ......... . ......................... . ............ . Brays Bayou at Houston, Tex ......... ........... ................................ . Brazos R1 ver Basin ....... ....... ... .... . .................. .. ........ . . .•. ... .. .... Double Mountain Fork ot Brazos R1ver at Lubbock, Tex .............. . .........•... Double Mountain Fork ot Brazos R1ver near Aspermont, Tex .......... . ..•.......... Brazos R1ver at Seymour, Tex ...... .. .... . . . ........... .. ...................... .. Brazos R! ver near South Bend, Tex .................................... . .. . ...•. .. Possum Kingdom Reservoir near Graford, Tex ..................................... . Brazos River near Palo Pinto, Tex ................................. : . . ......... . . Brazos River near Olen RoseL Tex .............................................. .. Brazos R1 ver near Whitney, Tex . ..... . ......... . •. ... ... .. ....•... . ...... .. . . .... Brazos R1ver at waco, Tex . ... . .. . ... . ...... .. ........ .. . .. ... . ................. . Brazos River near Marlin, Tex ..... .. .. .... . ................... . ...... . ......... . Brazos River near Bryan, Tex ......... . . . .... ... ............................... .. 

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IV CONTENTS 

Gaging-station records--Continued. 

Brazos Rl ver Bas! n--Cont! nued. 

Brazos Rl ver near Hempstead, Tex .....•............... . ...•........ .. .... . ........ Brazos R! ver near San F'ell pe, Tex .................... . •.............•..•...... . . Brazos River at Richmond, Tex .. . .......... . .. . ................... . ..•......•. . . . Salt F'orl< ot Brazos Rlver near Aspermont, Tex . ...............•.......... . ....... White River at Plainview, Tex ...... . ..... . ............•.... .. .......... ..... ...• Clear F'orl< or Brazos Rl ver at Nugent, Tex ... . .. . .. . . . ....•...•...•..•........ . .• Clea r F'Orl< or Brazos River at F'ort Gr!!tln, Tex ..... . ..... . .... . •. . . .......... . . Clear F'orl< or Brazos R! ver near Crystal F'alls, Tex ........ .... . . . ....... •.. . .. .. F'ort Phantom Hill Reservoir near Nugent, Tex . .............•............. . ..... . . Aquilla Creek near Aquilla, Tex ....... . ...... ... ......••..•. . .... . ...... . ....... North Bosque Rlver near Clifton , Tex ........... . ... . ......• . ... ..•...•......•... Leon Rl ver near Hasse, Tex ...............•................•........ . • •. .. . .•... . Leon Rl ver near Belton, Tex ... .... .. .. ............ ... ... ......•.... .. . .. . ...•... L1 ttle Rl ver at Cameron, Tex ....... .. ... .• . . .... ... . ..........•................. Lampasas River at Youngsport, Tex ... .... . .......• . . .. .••..••.........•.. . ..... . . San Gabriel Rlver at Georgetown, Tex ............. . . . .........••. . •... •.. . ....... Yegua Creel< near Somerville, Tex ......... .. ........... . ... . ......•..•• . . ••.... .. Navasota Rl ver near E:asterly, Tex .......... . ...... . ............................ . Brazos Valley Irrigation Co. •s canal near F'ulshear, Tex . . ... . ... . ....•. .. .... . .. Richmond Irrigation Co. •s canal near Richmond, Tex .........• . ..... . ..... . •... . .. Colorado Rl ver Basin . .. ............. . . ... ....... ... . ... . .....• . ... .••..• . . . .... . .. Colorado River at Robert Lee, Tex . . ...............................•..•..•....•.. Colorado River at Ballinger, Tex ....... ............ .. ...• . ... .. ...•.. . •..... . ... Colorado River at Winchell , Tex ............. . ........... . .. . ........... . ....... . Colorado Rl ver near San Saba, Tex ............ . .................•..... . .......... Buchanan Reservoir near Burnet, Tex ...........• .. . ..... . ....... ......••..• ..• . .. Marshall Ford Reserve! r near Austin, Tex ......•........ .... . •..• ...•..• . .. . . . . .. Colorado R1 ver at Austin, Tex . . .......... .. .... . .....•.. . .............. . .. . ..... Colorado Rlver at Smithville, Tex . .............. .. ..... .. ...... . ............... . Colorado R1 ver at La Grange, Tex ....... . ...•... . .... . . . ...... . ....••. . .. . ....... Colorado Rl ver at Columbus, Tex ... . . . ...•..•...... •..•. ..•..•.. . .. . •......•.. ... Colorado River at Wharton , Tex ......... .... .... ... •...... . .. • . . . ...•............ Elm Creek at Ballinger, Tex ......... .. ............•......•..•......•......•..... South Concho Rl ver at Christoval, Tex .... .... .. . ..•... . . .. ...................... South Concho Rlver at San Angelo, Tex ............... . ..... ... . . . . . .. .... . .... . •. Concho River near San Angelo, Tex ........... . ... . ... . ... . .. ...... . .•.. . . ... . .•.. Concho Rl ver near Paint Rock, Tex ... . .. . .... . .................. .. ..•.. .• ... . ... . South Concho Irrigation Co. •s canal at Christoval , Tex ..... . .............. . .... . !11ddle Concho Rl ver near Tenl<ersly, Tex .. . ........... . ...... . . . . . .............. . Spring Creel< near Tenkersly, Tex ................ . .............. . . . .... . •... .... . North Concho Rl ver at Sterling Cl ty, Tex .......•..•......•...................... North Concho Rl ver near Carlsbad, Tex . . . . .................•......•.............. Pecan Bayou at Brownwood , Tex ................. . ...... . ... . •.. . . . . ............... San Saba Rlver at Henard, Tex ............•......•................ . ..•......... . . San Saba ruver at San Saba, Tex ... .......•......•..•........... ..•..... . . .. . . ... Noyes Canal at 11ena rd, Telt. . . ..... . . .. ...•... . .................................. Brady Creek at Brady , Tex . . ... . .... . . .. ..•..• ... •. . . . ............ . . .. . . .. . . . •... North Llano Rl ver near Junction, Tex ..... . ......•..•. . •...• .. •. . .. . .•. . ... . ..... Llano Rl ve r near June tl on, Tex . .. ....... . . . .. . .............. . .•..•.. . ...• . ..•.. . Llano River at Llano, Tex ................. . ........ . ......•...... . .............. Pedernales River near Johnson C!ty, Tex ............ . ...• . . ... . •... . .. . ... ....... 

~~tg~~~r~~g~u!~c~~~t~ke ;e~~a~. smi thvi iie; . ;.~~: : : : : : :: ::: : :::: ::: : :: : ::: ::::: : 

Lavaca River Basin .. . .. . ......................... . . ... ..... . ....•.......... . ...... Lavaca River at Hallettsville, Tex . ..... ... ... . .. . ..•........................... Lavaca River near Edna, Tex ... . ... .... .. . .• .. ..... . .•.. . .......... . ..•. . . . .. .. .. Navldad River near Ganado, Tex ......................... . .. . •..•.. .. ... . ........ . Guadalupe Rl ver Basin ................. . .......... . ...........•..•..• •..•...•..• . .. Guadalupe River at Comfort , Tex ...... ...... ..... . . ... .. ....... . ................ . Guadalupe Rl ver near Spring Branch, Tex ............ . . .. ........................ . Guadalupe River above Comal River, at New Braunfels, Tex ... . .. . ... . .. . ...•...... Guadalupe Rl ver at VIctoria, Tex ........... . ...... . .... .. .. .......•.. .. ..• . . .. .. Comal Rlver a t New Braunfels, Tex ..... . .... . ................ . .. •..•............ . San Marcos River at Luling, Tex . .. . . ..........•..•. . .•..• . ... . .•... . .. . ......... San Marcos Rl ver at Ottine, Tex . . ...... . . ... ..•......•................ • . . .... • .. Blanco R1 ver at Wimberley, Tex . .. ....... ...•.... ....... .....•......•............ Plum Creek near Luling, Tex .. . .............. . . . . ...................•....... . .... Cole to Creek near VI ctorla, Tex ........ . ......•. . ....... . ...•...... . ......•.. . .. San Antonio River at San Anton i o , Tex .. . ...•.........•... •..•... . ..•......•... . . San Antonio Rl ver near ralls City , Tex . .. . ....•...•.... . . . ... . .. . ......... . ..... San Antonio Rlver at Goliad, Tex ........ . .............................. ..... ... . Medina Rlver near san Antonio, Tex . . .......•.... .. •.. . ... . ... .. .... . ............ Cibolo Creek near F'alls City, Tex ..........•.... . ..... . ... . .. . ..... • ... . ..... . •. MISSIOn R1 ver Basin ........... . . .. ....... . ...•......•.. . .... . .... . • . ... ..• ..... . . . Mission River at Refugio, Tex . ........... .. • . . . . . •.. . .... . . . ... ....• . ........ ... Nueces River Basin . ..... . ...... .. ............•............ . ....... • .........•..... Nueces Rl ver at Laguna, Tex ... . ......... . . . .. . ... . .......... . ..........•..... . .. Nueces River below Uvalde, Tex •....... •...... •. .. ......... . . ....... ... .... ... . .. Nueces Rl ve r near Asherton, Tex ..... . ..... . ............. . .. • .......... . .. . ... . .. Nueces Rlver at Cotulla, Tex .............. . .. . .... . ....•......• .. ....... . ...• . .. Nueces R! ve r near Three R! vers, Tex .... ... . . . . ...... • . . ..................•..•... Nueces River near Mathis, Tex . ..... ...... . ...•......•.. . .. . .. . . . ..•......•...... Nueces R1 ver at Calallen, Tex .. ... . ............ . . .......... •.................... West Nueces R1 ver seepage Investigation ....................•... . ..•......•...... l"rl o Rl ver at Concan, Tex ........ . ....... .. . . ..............•...... . ... . . . •...... F'rlo Rl ver near Derby, Tex ............. . . .. ......... •. . . . . .•.... . .•............. F'rlo R1 ver at Calliham, Tex .. . ......................•. .. . . ... . .. . .•........ . .... Leona R! ver spring now near Uvalds ,. Tex .....•. . ..... . . . ...•.. . ................. 

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CONTENTS 

Gaging-station records--Con tinued . Nueces ruve r Basi n--Continued. 

Atascosa River at Whltaett, Tex ............ . . . .............•..•• . .• ...• . .....•. . Rio Grande Basi n ..... .. .. . ...............................•. . .•..• . . . ...... . ••..•.. Rio Grande at Th!rtym1le Bridge, near Creede, Colo . . .... . . . ....... . . . .......... . Rio Grande at Wason, below Creede, Colo .. . .......... . ......• ...• .. . ......... . .. . Ri o Orand" near Del Norte, Colo .... . ........ .. ... . .... . . .. . ..... .. ............. . Ri o Grande near Monte Vlsta, Colo . .. .. . . . ............ . ... .. . ..........• . .. . ..... Rio Grande at Alamosa, Colo . . ...... . .. ....... . ... . ..... . ... ............. . .•..•.. ruo Grande above mouth or Trinchera Creek, near La Sauses, Colo ..... . .• .. •... . .. ruo Grande near Lobatos, Colo . .... ...... . ... . . .. . . ................. . .. . . . ... .. . . Ri o Grande below Taos Junction Bridge, near Taos, N.Mex ..............•......... ru o Grande at Embudo, N. Mex . . ................ . ........ . .. .. .. ..... . . . •...... ... Rio Grande at Otowi Bridge , near San Ilde!onso, N. Mex .... . .. . •... . . . . ... .. . . •.. Rlo Grande at Coch! t!, N. Mex . . ...... . .. . . . . .. .. . .... . .. . .....• . ..•.... .. .... . .. Rio Grande at San F'el!pe, N. Mex ....... . ..................•.... . .....•..•• . .•• . . ruo Grande at San Acacia, N. Mex ............... . ..................•............ . R!o Grande at San Marcial, N. Mex .... .. ...... . ... . .................. . ....•...... Elephant Butte Reservoir at Elephant Butte , N.Mex .. . . . ...•...• .. . . ..... .. . . . .. . Rio Grande below Elephant Butte Dam , N. Mex ..... . ..... . .. •. ...•...•.... . .•..•. . . Caballo Reserve! r near Arrey, N. Mex ..................•. .... .••. .. . .... . . • ..• . .. Rio Grande "below Caballo Dam, N. Mex ...... . .......•..........•........ . .•. ..... Clear Creek below Con t inental Rese rvoir, Colo ...... ... ........•.. .. .. . . . . ... .... Goose Creek nea r Wago n Wheel Gap, Colo .............•..... . . . ... .. . .. .• . ..•..•... South F'ork o! R!o Grande at South F'ork, Colo . .. . .. • . . . • .. . • .. • ...• ..•. .. .. . .•... Pinos Creek nea r Del Norte, Colo ..... . ..... . ... . .. •.. . • . .... .• . ..•. . .•.. . • . .. . .. San F:ranc!sco Creek near Del Norte, Colo ................ . .... . •... ... . . ..•.... . . Rock Creek nea r Monte VIsta , Colo .. . ....... .. ........... . .• . .. •.. ....•.......... Closed basin In ~an Luis Valley, Colo . .. .. ............. . ............... . .•...... Ke rber Creek at- Ashl.ey Ranch, near V! la Grove; Col:o .. ... . . . .... . . •.. . ...... · .. Saguache Creek near Saguache, Colo .... . .... . ............ . .........• . .......... North Crestone Creek near Crestone, Colo . . .... ...... ... . ... . .. ...•• . . .... .. ... Ca rnero Creek near La Gar! ta, Colo ... ... ........•.. . .......... .... ........... . La. Garita Creek near La Garita , Colo .................... . .................. .. . Alamosa Creek above Te rrace Reservoir , Colo ............................ . ....... . Alamosa Creek below Terrace Reservoir, Colo . ........ . . ...... ..... . ..... . •..•... . La Jara Creek at Gallegos Ranch, near capulin, Colo ... . ... .. . .................. . Trinchera Creek above Turners Rench, near F'ort Garland, Colo ...............•..•. 

i~t~~~::! g;:~~ ~~~~~ ~~~~~~s~~~~ ~~s~~~~ ~ia~~:~ ~~r~. ~~:~~~~: . ~~~~: : : : : : : : : :1 

Sangre de Cristo Creek near F'ort Garland, Colo ..... ... ....... .. . .. ... .. ......... . Ute Creek at upper station , near F'ort Garland, Colo .. . .................. •. .... .. , Ute Creek near F'ort Garland, Colo . . . . ...... ...... . .......•.................•.... Conejos ruver at Platoro, Colo ................. ........ . •..••.. • •..•..••......•. Conejos River near Mogote, Colo . .... . . .. . .......... . .•.. .. ... .. .•.... . .. .... . .. . Conejos River near La sauses1 Colo .. . .............. .. ........ ...•. .•... • ...... . . san Antonio R! ver at Ortiz, l;Olo ...... .. ... ..........•.... ..•...• .... ... .. .. . .•. San Antonio Rl ver at mouth, nea r Manassa, Colo ..... . ...... . .•. . ..... . .. .... . ... . Los Pinos ruver near Ortiz, Colo .............. . .... . ..... . .. . ... . ... .. . . .... . . . . Culebra creek at San Luts, Colo . .. ... . . ............ . ...... . .... .• .. . ......•..... Culebra Creek below San Luis , Colo ........................................ . .... . Costilla Creek above reservo ir, near Costilla, N. Mex . ......... . .... ..... .•. .... Costilla Creek below reservoir, near Costilla, N. Mex .. . ..... . .... .. .. . .. . ..... . Cos ! lla Creek near Costi lla , N. Mex .. .. ....... . . ...... .. ....... ... .... . .... .. . . Castes Creek near Costi lla, N. Mex ..... . . . . . . . ................... . . . ...•......•. Santistevan Creek near Costilla , N. Msx ..........• . .... . .... . ...• . .. . . .• . . .. . .. . Latlr Creek near Cerro , N. Mex .. . .... . ... ...... .............•.. . ... . ... •... ... .. Rio Colorado near Red River, N. Mex .. .. ... ........... . . . . ...... . .......•.. . ... • . ruo Colo rado near Questa , N. Mex ........ . .......... ... .. .. .. ... . ............ .. . . R1 o Hondo near Valdez, N. Mex ................ ....•.. .•.................•. .•..... Rl o Hondo at Arroyo Hondo, N. Mex .............................................. . R!o Pueblo de Taos near Taos, N. Mex .. . . . ...... . .•...•......• . ...... . ..•. .•... . . Rlo Pueblo de Taos at Taos, N. Mex . ........... . ... ...... ... .•. . . ......... . . . ... . Ri o Taos at Los Cordovas, N. Mex ............... ... . ............................ . Acequta Madre at Taos, N. Mex .. . ... ............ . ........ . ...... . •. . ........... . . North channel ot R!o Pueblo de Taos at Taos, N. Mex .........•............. . ..... Carson Reserve ! r near Stong, N. Mex ........... ... ... .. ...... • .. ....•.. . ...•..... lllo Lucero near Arroyo Seco, N. Mex .........................•... . ............... Rio Luce ro below dive rsi ons, near Arroyo Seco, N. Mex . ... . . ... ..... . ... ... . .... . Princ i pal dlveretons !rom Rlo Lucero , N. Mex ...... . . . .......... • ......•........ . Embudo Creek at Dtxon, N. Mex ............................... . .................. . Pueblo Creek near Penasco, N. Mex .. . .. .. . .. .. ... . .... ...... ... ......... . ....... . P! curlS dl tch near Penasco , N. Mex ............ . ......... . ............ . ...... . .. . Principal diversions !rom ruo Grande between Embudo Creek and Rlo Chama , N. Mex. 

Rlo Chama at Park VIew, N. Mex .. . ........... .... ..... .. ........................ . li:l Vade Reservoir near Tierra Amarllla, N. Mex ................................ . . Rlo Chama near Tierra Amarilla, N. Mex . . . .. . .. ... ... . ...... ... .. ...•......... . •.. R!o Chama near Cham! a, N. Mex ............ . .........•......•...•....... .. ... . ... Willow Creek nea r Park VIew, N. Mex ...... ... .•. .. . . . . . . . . ..•.. .. ..•. ..... • ... ... El Rlto I: reek near El Rl to, N. Mex .. .. . ... .. . • ... . ..•.. .. . . ... . ...•. .. ... • . . .... Rlo Ojo Caliente at La "ltlClera, N. Mex .............. .. ..... . •... ..... . . ...•...... Cham!ta Cl!tch near Chamlta , N. Mex .... ..........•...•. .• ...•...•..•... ... •...... Santa Clara dl tch near Espanola , N. Mex ...........................•... . ..•...... Rlo Santa Cruz at Cundiyo, N. Mex .......... . ...........•.. . .... .. ... . ....•... .. . Santa Clara Creek near Espanola , N. Mex ...... . .. ......... . . . ... . . . ............. . Principal d!verstons !rom Santa Clara Creek , N.Mex . .. . •... • ....... . .....•...... San Ildetonso ditch near Espanola, N. Mex ... . .. . . . . ... . ....•..• . . . ... .. ..•...... , Nambe Creek near Nambe , N. Mex ... .... ........ ....... .. .....•.... .. .. .....•. .. ... 

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VI CON'l£NTS 

Gag!ng-stat!on records--Conttnuec!. 

R!o Grande R!ver Bae!n--Cont!nuec!. 

Nambe Creek at Pojoaque Br!c!ge, near Nambe, N. ~lex . .....•...... ... ...• .. . . ...... Prtnc!pal c11 versions !rom Nambe Creek, N. Mex .... .. ....... . . . ..... .. ..... .. ... . . R!o Tesuque above d!verstone, near Santa Fe, N. Mex ... . ... . . ... . ......•...•... .. R!o Tesuque at Tesuque, near Santa Fe, N. Mex ........ . ..... . ...•.. . ...•......... R1 to Tesuque near Santa F'e, N. Mex .... .. ... .. . ..... . . ... . ......... . .......... . . . Pr!nc!pal d! verstons !rom R!o Tesuque, N. Mex ... ..... .... .. . ................ . .. . Prtnctpal d!veretone !rom R!o Pojoaque , N. Mex . ......... .. .•..........•......... santa F'e Creek near Santa Fe, N. Mex ............. . ........ ..... . .............•.. San Fel!pe east stele acequ!a near Domingo, N. Mex. ... . .............. .. ... ....•.. Jemez Creek near Jemez, N. Mex . . .. . ...... . . . ... .... · .. . .... . .................... . Jemez Creek at San Ysidro, N. Mex ....... .. .. .... . .............................. . R!o Las Vacas near Cuba, N. Mex ...... . ... . ....... ...................... . .. . .... . R!o Guadalupe near Jemez Springe, N. Mex ....................................... . D!verstone rrom Jemez Creek, N. Mex .. . ... . ................... ... ............... . R!o Puerco at R!o Puerco, N. Mex ................................ . ............. .. R!o Puerco near Bernardo, N. Mex .............. . .•...•..•.............. . ........ . Bluewater Creek near Bluewater, N. Mex . ..... .. ................•...•......•...... san Jose River near Grants, N. Mex ........ .... .. •. . ... ........•.. . ....... .. ..... San Jose R!vsr near San F!c!el, N. Mex .................. . .............. . ........ . San Jose R!ver near CasaBlanca , N. Mex .............................. . .. . .... . . . San Jose R!ver near Laguna, N. Mex ............................................ .. San. Ma.teo Reservoir rn .San Mateo, I{. Mex ........ .... ...... , ........ , .......... .. Paguate Creek near Laguna, N. Mex .. .. .. .............................. . . ... ..... . Prtnc!pal d!veretons !n San Jose R!ver Bas!n, N. Mex . . ..............•........... New .Laguna d! tch wasteway near casa Blanca, N Mex .................. ...... .... .. S'ocorro ma!n canal north at San Acacia, N. Max .. .. . .........•......•............ Alamosa R!ver near Mont! cello, N. Mex ......................................... .. Pecos R1 ve·r near Pecos, N. J'1ex ..........................•............. . ..... .. .. Pecos River near Anton Chico, N.Mex .......................... ..... ............ . Pecos River at Santa Rosa, N. Mex . ...... ... .... .. •.. .......... . ......... ..• . .... Pecos R!ver near Puerto de Luna, N. Mex .................. . ..•. . •.. .• . .....•..... Pecos R!ver near Guadalupe, N. Mex ..... ..... .............. ................ ..... . Pecos R! vsr nea r Acme, N. Mex .... ....... .........•. . ...........•... . ... ......... Pecos R!ver near Lake Arthur, N. Mex ................ .......................... .. Pecos River near Artesia, N . . Mex .... . ................... . ... . .................. . Pecos R1 ver at Carlsbad, N. Mex . ... .......................... ..... . ....... .... . . Pecos R!ver near Malaga, N. Mex ........... . ..... . .............................. . Pecos River at !erc~ Canyon Crossing, near Ma l aga, N. Mex .... . ................ . 'l>'ecos Rtyer_at. ~d Slut(, t:'· Mex ................ : ............................... . Pec'os River near Orla, Tex ... . . . ........................... ....... ............. . Pecos R!ver at Pe cos, Tex ... . .. .. .....•..•......•..........•................. . .. Pecos R1 ver below Grandfalls, Tex . ..... ... ... . . .................... . . ... . ...... . Pecos R!ver near G!rv!n, Tex . ............. . . . ................................. .. Pecos River near Shert!elc!, Tex . ............... .... . . . . ...•.. . .......•. . .... . ... Reservoirs on Pecos R!ver ........... .. ...• . .•......... . .......•... . ............. Gall!nes R!ver near Montezuma, N. Mex .......... .. .. . . . . .............. .. .... . .. .. . Gall!nes River at Montezuma, N. Mex ......... .. .. . ... .. .... ....•. .. .............. R!o Ruidoso at Hondo, N. Mex . .................................................. . R!o Hondo at Dtamonc! A Ranch, near Roswell, N. Mex ............ ...... ........... . R!o Bon! to at Hondo, N. Mex ... . ......................... ....... ... ......... .... . R!o Fel!x at ole! h!ghwa.y br1<1ge , near Hagennan, N. Mex . ........................ . Cottonwooc! Creek near Lake Arthur, N. Mex ................................... . . . . Delaware River near Red Blurt, N. Mex .................................... .. .... . Prtnc!pal dtverstons rrom Pecos R!ver between Red Blurt Reservoir anc! Imperial, 

Tex ........ . : . .......................... . ........ .. ..... .. ................... . Madera Canyon near Toyahvale, Tex .. ..... .... . .......... .. ......... ... .... . ..... . Toyah Creek below Toyah Lake, near Pecos, Tex .......... .. ...... . ............... . San Solomon Springs at Toyahvale, Tex ................ . ............ .... . .... .... . Comanche Springe at Fort Stockton, Tex ........... . ......... . .................. .. Dev!ls R!ver near Juno, Tex .................................. ...... ........... .. Las Moras Springs at Brackettville, Tax ... . ...•. .. .............• . .... .•......... Mimbres River Basin ... . ........ . .......... . ...... .. ... .. ..•.............. . ..... . .. Mimbres R1 ver near Mimbres, N. Mex . ... . .......... . .......... . ............... .. . . !11mbree R1 ver near F'aywood, N. Mex . ......... . ..... . ............... . ............ . Bear Canyon near Mimbres, N. Mex .............................................. .. TUlarosa Valley Basin ..................... . ...... . ............ . .................. . R!o TUlarosa near TUlarosa, N. Mex ............................................ .. Alamogordo-La Luz ditch at La Luz, N. Max ......................... . .... ...... .. . Alamogordo water supply near Alamogordo, N. Mex ...... .... .... ........ .. ........ . !11scellaneoue c11echarge measurements .................. . ... . ..... . ......•............ ·Index . .. . .......... . .................. . ..... .... ................•. . . . ............... 

Plate l. 

ILLUSTRATION 

Gag!ng-stat!on structures: A, Sabine River near Gladewater, Tex.; B, Pecos 

River at Red Blurt, N. Mex.; Q, Colorado R!ver near san Saba , Tex • . . ... . 

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Page 

2 
SURFACE WATER SUPPLY OF' WES'J'ERl GULF' OF' MEXICO BASINS , 1941 

SCOPE OF' WORK 

Th!s volume 1s one or a sarles or 14 reports presenting results or measurements or 

stage and flow made on streame, lakes, and reservoirs !n the Un! ted States during the 

water year ending September 30, 1941. The work was begun !n 1888 !n connection w! th 

special stud!ee relating to !rr!gat!on. Measurements or the flow or streame and or the 

stage and contents or lakes and reservo!re have been made at about 9,120 gaging stations 

!n the Un! ted States and also at many gaging stations !n Alaska and Hawa11. In July 1941, 

4, 850 gaging stations were be!ng ma!nta!ned by the Oeolog!cal Survey and cooperating organIzations. Miscellaneous discharge measu rements were made at many other pointe. 

In the execution or the work many State and private organ!zat!ona have cooperated , 

el ther by rurnlshlng data or by assisting !n collecting data. Coopera tion or the !1 ret 

k!nd Is acknowledt;ed In connection wl th the description or each station arrected; cooperation or the second 'k!nd Is acknowledged on page 11. 

DEFINITION OF TE:Rl1S 

The unl ts !n wh!Ch stream-flow data are presented In this report and other tenns used 

herein are defined as ronows: 

•second-teet• !s an abbreviation tor 'cubic rest per second . • A second-root Is the 

rate or discharge or a stream whose channel !e 1 square toot !n cross-sec'tlonal area and 

whose average velocitY Is 1 toot per second . 

•second-teet per square mile ' Is the average number or cubic teet or water flowing per 

second rrom each square mlle or area drained, on the assumption that the runotr Is distributed un!tonnly both as regards time and area. 

'Runorr !n Inches' !s the depth to which an area would be covered lt all the water 

draining trom !t !n a g!ven pe ri od were unttormly distributed on !ts surface. It !s usee! 

tor comparing runott w! th ra!ntall, wh!ch !s usually expressed !n Inches . 

An ' ac re-root' !s the quantity or water required to cover an acre to the depth or 1 

root and !e equi valent to 43,560 cub!c teet. The tenn !s commonly used In connection wlth 

storage t or !rr!gat!on. 

'Second-toot-day' !B the volume or water represented by a flow or 1 second-root tor 24 

hours. It !e equivalent to 86,400 cubic teet, 1.983471 acre-teet, or 646,317 gallons and 

represents a runorr or 0.0372 Inch rrom 1 square mile. 

'Stage-discha rge relation• !s an abbreviation ror the tenn 'relation between gage 

height and discharge.• 

'Control' !s a term used to designate a reature downstream rrom the gage that determi nes 

the stage-discharge relation at the gage. This reature may be a natural section , a reach 

ot the channel, or an artlt!clal structure. 

EXPLANATION OF' DATA 

The base data collected at gaging stations consist or records or stage, measurements or 

discharge, and general lntormat!on used to supplement the records or stage and discha rge 

1 
2 EXPLANATION OF' DATA 

measurements In Cletermlnlng the Cla!ly now. The recorels or stage are obtslneel el ther !rom 

Cllrect reaellngs on a nonrecorellng gage or ! rom a water-stage recoreler that gives a continuous recorel or the rluctuatl ons . Measurements or Cllscharge are maele with a current 

meter by the gene ral methoels outl!neel In standarel textbooks on the measurement or river 

discharge. Typical struc tures In use a t gaging stati ons are shown on plate l. 

Rating tables gl vlng the d ischarge for any stage a re prepare(! from the d ischarge measurements. The applicati on or the dally mean gage height t o these rating tables gives the 

dally mean d ischarge , from which the monthly and the yea rly mean discharge are computeel . 

If the stage-discharge relation Is s ubject to change because or frequent or con tinual 

change In the phys i cal fea tures tha form the control , the Cla lly mean discharge Is 

detarmlned by the ' shifting-control method, ' In which correcti on !actors based on !nel lvldual discharge measurements are usee! In applying the gage heights t o the rating tabl es. 

At some gaging stations the stage-d ischarge relation Is a rrectsel by backwate r !rom 

reservoirs, tributary streams, or othe r s ources , which necessitates the use or the 'slope 

method' In which the slope or !all In a reach or the s t ream IS a factor In the de t ermi nation or discharge. Information requlsl te ! or determining the slope or fall Is obtained 

by means or an auxiliary gage set at some distance !rom the base gage . At some stations 

the stage-CIIscharge relation Is a rrecteel by changing stage , a nel !or them the rate or 

change or stage Is used as a !acto r In the Cletermlna tlon or ells charge. 

At most gaging stations In the northern part or the Un l ted States and a some In the 

mountainous regi ons or ot he r pa r ts the stage-d ischarge re lation !s a rrected by I ce during 

the winter, which makes It Impossible t o compute he discharge In the usual manne r. Discharge ! or perloele or l ee e rrec t Is computed on he baela or t e gage-height recorel anel 

occasional winter dis charge measurements, considera ti on being gi ven to the available Information on temperature and precipitation , notes by gage observers and engineers , and 

comparable recorels or Cllscharge ! or stations In the same or nearby basins. The Clays 

lnclueled ln the periods or l ee effect anel the days du ring the winter pe r iod ou wh i ch discharge measurements were made are !nd!cated In the table by symbols referring to footnotes. 

F'or most or the gaging stations on streams ln the a rea cove reel by this report the date 

presented comprise a Clescr!ptlon or the sta tion, a table s howing the Clally discharge or 

the stream, and a table or monthly and yearly Cllscharge anel runorr. Skeleton rat ing 

tables are published !or all stations except those at wh! ch the Cla!ly discharge fo r the 

greater pa rt or the year was determlneel by the shifting-control method, the slope method , 

or other special methods. 

The Clescrlptlon o! the stet! on gives the type or gage, Its latl tuele and long! tude 

determ1neCI !rom the best available maps, anel Information !n regarel t o Cll ve rslone that 

Clecrease the !low at the gage, artltlclal r egulation from pondage or s t orage , anel the 

accuracy or the recorels. Uneler 'Average discharge' ls g! ven the average Cl lscharge for the 

number or years lnellca teel. It ls given only t or stations t or which there are 10 or more 

complete ye_ars or r ecorel. Under ' Extremes' are given the maximum discharge anel gage 

height; the m1n lmum Cllscharge I! there Is ll ttle or no regula tion; the minimum dally discharge 1t there Is extensive regulation (also the mln!mum discharge lt useful ); anel the 

minimum gage he i ght (unless It ls or no Importance). Unless othe rwise qual!tleel, the 

maximum Cllscharge corresponels to the crest stage , obta ined by use or a water-stage 
GEOLOG ICA L SURVEY II"ATE H-<:;UP PLY PAPER 928 PLA'I'E I 

4_"'~< '- • ~ • ,,... - • ' •"" '_.I ' • • ~' - :• o ~~ 

A . Si\ Bl f\E I<I VE R J\EA H CI.AOEWATER, TEX. C. C0 1.011A I)0 IU\'EI1 "\EA H SAi\ SA il •\ . TE.\. 

GAGJl\'G-STATIOi\ STR UCTUJ~ ES. 

EXPLANATION OF DATA 3 

recorder or a nonrecordlng gage read at the time ot the crest. Likewise the mi nimum d ischarge represents the lowest stage , unless otherwise qualified. Select ed peak discharges 

wl th the times or their occurrence are gi ven below the table or mon t hly discharge tor some 

stati ons . This supplementary l nt orn.atlon IS generally om! tted t or stations hav ing drainage areas ot less than 10 square miles or more than 10, 000 squa re miles or 1 t the peak 

discharges usually exceed the corresponding mean discharges for the day by less than lO 

percent. 

For Stati ons equipped wl th non recording gages, the the table ot dally d ischa rge gives 

the discharge n second-t eet corresponding t o once-dally rsadlngs or the gage or the mean 

ot twice-dally r eadings . For flashy floods the dally mean discharge Is determined from 

gage-he ight graphs based on gage readings made once or twi ce dally or oftener, as stated 

In he station description. For stations equipped w! th wa ter-stage recorders, except those 

on streams subject to sudden or rapid fluctuation, the table gi ves the discharge corresponding to the dally mean gage he i gh t. For stations subject to such fluctuation the 

dally mean gage he i ght may not Indicate the true dally mean discharge, which must be obtained by averaging the discharge t or pa rts ot the day o r by using the discharge Integra or, an Instrument t or obtaining the dally mean discharge trom a continuous gage- hei ght 

graph and containing as an essential element a cu rve representing t he stage-discharge 

relation at the station . 

In he table or mon thly discharge the column headed 'Second-t oot-days' gives the sum 

for each month or the t!gures g!ven !n the table or da lly d ischarge . The column headed 

' Maximum' gl vas the maximum dally discharge and not t he momenta ry d ischarge when the 

wa er su rface was at crest stege. Likewise, In the column headed 'M!n!mum' t he quantity 

given Is the mi nimum dally discharge . The column headed ' Mean ' g ives the average tlow 

In cubic teet per second during the month. 

For most gaging stations on lakes and reservoirs the date presented comprise a des cripti on ot the s t l on and a mon hly summary table or stage and contents. F'or a t ew or the 

more Important lakes and rese rvoirs a table showing dally cont ents Is given . A skeleton 

table or capac! ty at given stages Is usually g iven In the first repo r t In which date to r 

a station are published but Is om! tted from succeeding reports . 

ACCURACY OF F"I ELD DATA AND COMPUTED RESULTS 

The accuracy ot strawn-flow date depend s primarily on (1) the pe rmanency or the stagedischarge relation and (2) the accu racy or obse rvati ons or stage, measurements or now, and 

Interpretation or records . 

The station description g ives a statement !n regard to the general accuracy or the 

records . "Excellent' Ind i cates that, !n general, the dally records are accurate within 

5 percent; "good ," within 10 percent ; " fa! r," wi thin 15 pe rcent; and ' poo r, " wlth!n 20 or 

a highe r pe rcent . 

Yield at some stati ons as Indi cated by monthly means may vary wi dely from natural yield , 

owi ng to diversion , consumption, regulation by storage, Increase or de crease In evaporation due to art! fl c!al causes , or other factors . For such stations figures or "secondfeet pe r square mile " and "runott In Inches " are not published unless storage or diversi on 

records are Included Ind i cating the extent or the regulation or diversion o r unless 
4 ACCURACY OF FIELD DATA AND C<l'IPUTED RESULTS 

sat!stactory adjustments can be made t or changes !n contents or reservo! rs or tor other 

changes Incident to use and control. Figures or second-teet per square m!le and runott 

! n Inches are a lso om! tted 1! the drainage area Includes large noncontributing areas or 

1t the average annual ra!ntall over the drainage area Is less than 20 Inches. 

Many gaging stations on streams !n the 1 rr!gated areas or the Un! ted States are s1 tuated above mos1: or the diversions !rom those streams, and therefore the discharge recorded 

does not show the water bupply available tor turther development, as prior appropriations 

below the station muat !!ret be sat!st!ed. 

The table or monthly discharge presents !n summary the distribution ot the now past 

the s tati on . The table or dally discharge atrords oppo rtunl tY t or more deta!led studies 

ot the variation !n now. As turther observations !n each succeeding year may be expec ted 

to throw f\BW light on data previously published, It should be borne !n m!nd that such data 

a.re sub ject to rev!s!on !n succeeding wate!'-supply papers. 

PUBLI CAT! ONS 

The r esults ot stream-now measurements are now published annually In 14 parts, each 

part cove r ing an area whose bounda ries coincide w! th natural drainage teatures as Indicated 

below: 

Part 1. North Atlantic slope basins (St. John River to York River). 

2. South Atlantic slope and eastern Gult ot Mexico basins (James River to MISSIBS!ppl River) . 3. Ohio Ri ver Basin. 

4. St. Lawrence R1 ver Basin. 

5. Hudson Bay and upper Mississi pp i River Basins. 6. Missouri River Basin . 7 . Lower Mississippi River Basin. 

8 . western Oult or Mexico basi ns. 9. Colorado River Basin . 10. The Great Basin. 

ll. Pacltlc slope basins !n Cslltorn!a . 12 . Paclt!c slope basi ns In Washington and upper Columbia River Basin . 13 . Snake Rive r Basin. 14 . Pacltlc slope basins !n Oregon and l ower Columbia River Basin. 

Wate!'-supply papers and other publications or the Geological Survey con taining data on 

the wat er resou r ces o r the Unl ted States may be obtained or consulted as explained below . 

1. Copies may be purchased at nominal cost rrom the Superintendent or Documents, 

Government Printing Ott !ce, Washington, D. C., who w!ll, on application , furnish lists 

g!V!l\g .pri ces. 

2. Sets ot"the reports may be consulted In the libraries or the principal c!t!es In 

the United States. 

3 . Sets are .available tor consultation !n the local otr! ces or the water-resources 

branch ot the oeologl cal Survey as t oll owe: 

East or the M!eslss!pp! R1 ver: Albany, N. Y. , 526 Federal Bu!ld!ng. Asheville, N. c., 220 Post Otr!ce Building . Atlanta, oa., 5 North Rhodes Center. Augusta, Maine, Statehcuse. Baton Rouge, La., 124 Geology Building, Louisiana State Un!vers!ty. 

Boston, Mass ., 945 Post Ot t!ce Bu!ld!ng. ' Charleston, w. va., 408 Union Bu!ld!ng. Charlottesville , Va., House G, Dawson Row, University ot V!rg!n!a. Chat~ooga, Tenn., 442 Post Ott! ce Bu!ld!ng. College Park, Md. , Engineering Bu!ld!ng , Un! vera! ty or Maryland. 

Columb i a , S . C. , 119 Un! ted States Court house. 

COliD!bua, Oh!o , 404 Enginee r ing E:xper!ment Stati on , Oh!o State Un! verst tY. Harrisburg, Pa., 490 Educati on Building. Ha rtford , Conn., 225 Capi tol Bu! ld!ng, 410 Asylum Street. 

Indianapolis , I nd., 511 Board ot Trade Bu!ld!ng. 

Jackson, Miss. , 208 Mi llsaps Bu!ld!ng . 
PUBLICATIONS 

Lou!ev!lle, KY., 652 Fe~eral Bu!l~rng. 

Ma~!eon, W!e., 666 State O!Uce Bu11~1ng . 

Montgomery, Ala., 607 Poet O!!!ce Bu11~1ng. 

ocal a Fla. 302 Poet O!!!ce Bu11~1ng . 

st. Piul, Minn . , BOB New Poet O!!!ce Bu11~1ng. Trenton, N.J. 226 Fe~eral Bu11~1ng. 

Urbana , Ill., i4 Poet O!!!ce Annex, Elm Street . 

west o! the M1ee1ee1pp1 River: 

Auet!n, Tex., 302 west 16th Street. Boise, Idaho, 429 Fe~eral Bu11~1ng. 

Denver , Colo . , 230 Customhouse. 

Fort Bmlth, Ark: 1 6 Poet O!!!ce Bu1l~1ng . 

Helenai Mont ., 408 Fe~eral Bu11~1ng. 

Honolu u Hawa11, 225 Fe~eral Bu1ld1ng. I~aho rails, I~aho, 201 Fe~eral Bu!l~ing. Iowa C!ty, Iowa, 608 Hy~raul!c Laboratory, Un!ve re ltY o! Iowa. 

Lincoln , Nebr., 1404 Statehouse. 

Los .Angeles Cal!!., G-3l Unite~ States Post Ot!lce an~ CourthOuse . Oklahoma C!ty, Okla., 303 Capitol O!!!ce Bu11~1ng. Portlan~, Oreg . , 606 Poet O!!!ce Bu11~1ng. Rolla, Mo., Missouri Deolog!cal survey Bu11~1ng, M!eeourl School o! Mines 

an~ Metallurgy • St. Lou!s, Mo., 926 New Fe~eral Bu1l~lng. 

Salt Lake C!ty, Utah, 303 Fe~eral Bu1 1~ 1ng . 

san Francisco, Cal!!., 625 Market Street Bu11~1ng. 

s anta Fe, N. Mex. 1 _204 Un te~ States Courthouse . T~coma, wash . , lluu washington Bu11~1ng. 

Topeka , Kans., 306 Fe~eral Bu!l~!ng. 

TUcson, Ar!z . , 210 Poet Ortlce Bu!l~!ng . 

A l!et o! the o~olog!cal survey publications may be obta!ne~ by applYing to the 

Director, Geological Survey, washington, D. c. 

Recoros o! now o! streams !n the Unl te~ States have been published !n the reports 

tabulated as !ollowe: 

Report 

lOth A, pt. 2 lltb A, pt. e 12th A, pt. 2 l~th A, pt, ~ 

14th A, pt. 2 8 1~1 .. ...... 

18th A, pt. 2 8 140~ •• •. ••• 

w u .. . .. .... 

18th A, pt . 4 

w 16 ... .. .... 

w 1e ......... 

lOth A, pt. ' 

w 27 ........ .. 

was ...... . .. 

20th A, pt. 4 W 36 to :50 • •• 

:; ~~ Kt. ~ 

224 A, pt. 4 w ee, ee . . . . . 

w 76 ....... .. 

Stream-flow d.ata in report• ot the Geological Survey 

(A • Annual Report; B • Bulleti n; W • Water-SUpply Paper) 

Oharaoter of data 

Deaor1pt1ve 1n.tormat 1on Onl1• nonthly ·d.ilobarge and deeor1pt1ve i.ntormation. , . •••• do •••••••••••••• • ••••••• . ••••• .. •.•• •.• ••• • , 

• • • • do • • , •••.• ••. •••••••••• : •• •••• •••••••• • • , ••• 

nontbl7 dhob&rge (long-time recorda, 1871 ... 93) •• Oeeor1pt1ona, meaa·ureme.nta, gage heights, and ratings. 

Deaor1pt1ve information only. Oeaor1pt1ons, measurements, gage heights, 

~~;.~:a :~l~~~t~!r~i~oharge (aleo many data 

Oage heights ( alao gage heights for earlier 7••r•) • 

De~~!!~~~·la~::·~~~; • da~:t~~·~an~d e~~i~;,. ,-eare). 

oe:~~!~!o~::t m:~e~:za;~!!!a~~Pf•~!v~~1~~· ot Ki110uri River and tributariee above ltaneaa River. 

De=~~!~! o~!: t ~~e~~ ~~!: t.~~P~aft! v:~ 1~!!P~t l'lheourl River and tributarlea above K.anaaa River. 

De:~~!~;:~• { .~::·~::e~~~-i~~=~o~~ ) ~onthl,­

l'l•:;~:::"!!:t r:~~=· "~:i=:t;p~e~rv;; ~~d l'l1aaour 1 River and tr1butar1ea. 

"·::~::::"!!:t r:~ i~g: , "~~~i=:t;p~·~rv:: ~;oept Pliaaouri R1 ver and tritN.tariea , l'lonthlJ diloharge (a lao tor many earlier r ear1 ) . I>lloriptiona, measurements, ga.ge heighta, and rat!.nga. l'lonth.lJ dieoharge ••••.••.•..• o ••• o. o • • o • • o •••••• 

Deeoriptiona , meaauremente, gage helghta, and ratinga . rtontb.ly d1aoh.&rge o • ••• • • o • • o • • o • • o o. o . o . o , 0 o . , • • 

Deaor1ptiona, measurements, ga.g:e heights, and rat1nga. Monthly dil'oharge o o. o •• o • • o o o. o. o . o • • • •• o. o. o • •• 

Year 

1884 to Sept. 1S90 le84 to JUne , 1891 • 188' to Deo. ~1 , 1892. 1888 to Dec. ~1 , 189~. 

189~-94. 

1896. 

1896. 

1896-98. 

1897 , 

1897 , 

1897. 

1898. 

1898. 

1899 . 

1899 , 

1900. 

1900. 

1901. 

1901 . 

J!2i!.L- Reporta oonta1nins recorda tor yoara after 1901 are given in table on page e . 

5 

The table on the !ollow!ng page gives, by years and dratnage basins, the numbers or 

the papers on sur race water supply published !rom 1899 to 1941. The data !or any particular etat1on w!ll, !n gene ral, be round !n the re por ts covering the years ~urlng 
Numbers or water-supply papera containing re~ulta ot atrea.m measurement~ , 1899-194:1 

(Por basins included seep. 4) 

You 1 2 3 4 ~ 8 

1899 •••• 35 b35, 36 36 36 38 o3e , 37 

1900 g ••• 47' b48 48 48, 149 49 49 49, J50 1901. •••• 65 , ?5 65 , 75 65, 75 65 , 75 1<8~. 88, 75 66, 75 

~g~ · .... ~~ ~~~· ~ 63 m82 , 83 

98 97 1<98. 9~:U.~ ~ 1904 • • • •• ol24, pl25, ql26 q128. 127 128 m IU20, t;f 130, rl31 1905 • • • •• ol65, pl66, ql67 q167, 166 169 172 1906 ••••• o20l, p202, q203 o2 ~ 204 205 208 207 208 1907-8 ••• 241 242 243 244 245 246 

1909 • •• •• 261 262 263 264 265 266 

1~~~· •••• 1911. •••• ~g~ ~g~ ~; ~g: ~~ ~ 1912 • •••• 321 322 323 324 325 326 

1913 • . ••• 351 352 353 354 355 1914 ••••• 381 382 363 384 385 ;~ 1"'"· •••• 401 402 400 404 405 406 

1916 ••••• 431 432 433 4~ 435 436 

1917 ••••• 451 452 453 454 455 458 1918 • •• • • 471 472 <73 474 475 476 

1919-20 •• 501 502 503 504 505 506 

l~~~· •• •• 

1922 • ••• • ~~i ~~~ ~~; ~~: ~:~ ~~~ 1923 ••••• 561 562 563 564 565 566 

1924 ••••• 581 582 563 584 ~85 586 1925 . •• •• 601 602 603 604 605 808 

1~~~· •••• 1927 • •••• ~~i ~:~ ~~~ ~~: ~~~ ~t~ 1928 . • .• • 661 662 663 664 665 666 

m~ ::::: 681 682 683 684 685 686 696 697 698 699 700 701 

1~31. •••• 1932 •.••• ;~i ~~; ;~~ ;~ ;~ ~~~ 1933 ••••• 741 7 42 743 744 745 746 

1934 • .• •• 756 757 758 759 760 781 

1935 . • ••• 781 782 783 784 785 786 

,~,.~· .... 1937 •• ••• m :~ :; :: :~ m 1938 ••• • • 851 852 853 854 855 856 

1939 •••• • 871 872 873 874 875 876 

1940 ••••• 891 892 893 69.4. 89~ 1!96 

1941 • • • •• 921 -~ 923 924 925 926 

a Rating tables and index to Water-Supplr Papers 35-39conta1ned 1n Water-Supply 

Paper 39. Tables or monthly d.iacharge tor 1899 1n 2let Annual Report , part 4. b James R1 ver only . 

c Gallatin River. 

d Green and Ounniaon Rivera and Colorado R1ver above Gunnison River. 

e H9j ave R.iver only. r K.inga and Kern Rivera and aout.h Paciflc dope baalna. s Rating tables and. 1ndex to Water-Supply Papers 47-52 a..n4 data on precipitation , "ells, and. irr-igation in Cal1torn1a and Utah contai.ned 1n Water-Supply Paper 52 . Honthly cUseharge tor 1900 in 22d Annual Report, part 4. h Wiaaahlckon and Schuyllcil1 Rivera to James River . 

i Scioto River. 

7 a 9 10 11 12 13 H 

37 37 d37. 38 M, e39 38, !39 38 38 38 50 50 ~0 51 51 51 51 51 k&5, ee, 75 6e, 75 66, 75 68 , 75 66, 75 88, 75 68, 75 66, 75 

~~ 84 ~~ 1~ 1~ 85 

1~ 85 85 99 100 100 100 1<128, 131 132 133 135 k:l69 1 173 174 175, t177 1 ~33, al34 176 , al77 m m m ul77, 178 lc205, 209 210 211, t213 212 , a2l3 213 214 214 247 248 249 250, a251 251 252 252 267 266 269 270 o271 271 272 272 

~~ ~~ ~~ ~~g 291 

311 ~~~ ~~ 327 326 329 330 331 332-A 332-B 357 

381 ;~~ ;~~ ;~g ;~i 36~9~ 36~9~ 

407 408 409 410 411 412 413 437 438 439 440 441 442 443 457 458 459 460 461 462 483 477 478 479 480 481 482 463 507 508 509 510 511 512 513 

~~-~ ~~~ ~~ ~~ ~~i ~~ ~;; 567 568 569 570 571 572 573 587 588 589 590 591 592 593 607 808 809 810 6ll 612 613 

~:; ~~~ ~~ ~~ ~~t ~~~ ~~ 667 668 669 670 671 672 673 

687 688 689 690 691 692 693 702 703 704 705 706 707 708 

;~~ ;~~ ;~: ;~~ ;~~ ;~~ ;~ 747 749 749 750 751 752 753 762 763 764 765 766 767 768 787 788 789 790 791 792 793 

8z7 :~ ~ ~ ~i ~~ ~~ 857 858 859 860 861 862 863 877 878 879 880 881 882 883 897 898 899 900 901 902 903 92T 928 929 950 931 932 933 

' ~~~C~t:;~;;e~t ~.;}~~;:1 R~r=~~ ~m t;;~~aries below Platte 

m Lake Ontario and tributaries to St. Lawrence River proper. n Hud son Bar only. o New England rivera only. 

p Hudson River to Delaware River, inclusive. q Susquehanna River to Yadkin River, 1nclua1ve. r Platte and. Kansas Rivera. 

2H 

252 

272 

m 332-C 

36~~ 

414 

444 

464 

484 

5N 

~~: 574 

594 

614 

~~! 674 694 

709 

;~~ 754 

769 

794 

~: 864 

884 

904 

934 

R1ver. 

a The OreAt Basin 1n Cal1rorn1a , except Truckee and. Carson River Baalns. 

t Below mouth or Gila River. 

u Rogue , Umpqua , and Sileh Rivera only . 

"' 

~ !:; 

0 

> 

~ 

0 

ili 
PUBLICATIONS 7 

wh!ch the station was maintained. For example, the data !or 1910 to 1920 !or any station 

! n the area covered by part 3 are published !n Water-Supply Papers 263, 303, 323, 353, 

403, 433, 453, 473, 503, which contain records !or the Olllo River Basin !or those years . 

The record.s at most or the stations discussed In these reports extend over a series or 

years. Miscellaneous measurements at many points other than regular gaging stations have 

been made each year and are published under "Miscellaneous discharge measurements• at the 

end or each report, the streams and points or measuren:ent listed appearing In the same 

relative order as the streams and gaging stations In the body or the report. An Index or 

the records obtained prior to 1904 has been published In Water-Supply Paper ll9. 

Each o! the re ports on surrace water supply !or the year 1939 , Issued as Water-Supply 

Papers 871 to 884 (see table on p. 6), contains a summary or ye~rly d ischarge at gaging 

stations In the area covered by that r eport . Gaging stations at which 10 or more complete years or record have been collected are represented. These sunnnarles are available 

also as separate reprints. 

From time to time reports have been published that are compilations or records r or 

various areas, usually a single State or drainage basin. These reports contain record.s 

previously published (some ot which have been revised), as well as some records not contained In the annual series or water-supply papers . The rollowlng tabl e gives the numbers and t1 tle5 or these reports, arranged In alphabeti cal order by States and drainage 

basins . 

Reporta containing eoop1la.t1on ot dhc~ge by State:J and drainage baslns 

Wa tor-Supply Year 

Paper end1n.g 

10'7 

29S 

299 

300 

7 

597-B 6:16-D 

6:56-B 

6:57-A 

74 197 

U5 

230 

370 

S60 

424 492 

S70 

469 

395 

617 

517 

618 

198 

491 536 

279 

192 

358 

491 109 

1903 

1912 

1912 

1912 

1918 

1927 

1927 

1927 

1927 

1900 

1905 

1915 

1906 

1910 

1937 

1916 

1919 

1935 

1921 

1914 

1927 

1920 

1926 

1905 

1917 

1920 

1909 

1906 

1913 

1917 

1 904 

State o r drainage ba s in and t1tlo 

STATB 

A.l~~~~~:;~~pr.ora or , with an appendix on stream measurements 

Cal1torn1a, Water resources of, part 1, Stream moRauromonts 1n 

Sacramento River Basin. Call!'ornla, Water roaourcos of, part 2 , Stream moasu.remonte 1n 

San Joaquin River Basin. California, Water resources ot, part 3, Stroa.o moaauroconts 1.n 

tho Groat Basin and. Paclfic coast river basins. California, southern, Surface wa ter supply of Pacific slope or. California , Surface water supply of Sacramento River Basin. California, SUrface water supply or San Joaquin River Basin. California, southern, Surface water supply of Paci.tlc slope basins in . Call!orn1a , Surface water supply of m..tnor San ?ra.ncisco Bay , northern Pac1tlc , and Great basins in. 

Colorad.o, Water resources of . Georgia, Water resources or . naasacbuaetts, Surface waters or . Nebraska, Surface wa tor supply of. 

Oregon , Surface water supply ot . Texas, Summary of records or surface waters ot . Venzaont, Surface waters ot. Washington, summary o r hydrometric data in . Washington, Summary ot recorda of surface waters or . Wyoming, SUrface waters or , and their utiliv.ation. 

DRAINAGE BASIN 

Colorado River (Arl r.. , Col o . , N. nex . , Utah , Wyo . ) and its 

utilization. Colorado Rlver, upper (Colo ., Utah} , and lta ut111zatlon. 

Great Salt Lake Basin, Water powers ot. Green Rlver (Utah , Wyo.) and lta utilization. !.ennebec River Basin (t!a1ne) , Wa tor resources or . nl:lk Rlver. (See st. tlary and Xilk Rivers.) New-!..anawha River Baa1n (Jrf. C. , Va ., W. Va.), Surface Water 

Supply or . Penobscot Ri ve r Basin (Halne ) , Water resources or . Potomac Ri ver Basin (D. c., nd . , W. Va.) Rio Grande Basin (Colo. , R. Kex. , Tex.) , Water resources or, 1888-

1913. St . l'lary and Mllk Rl vera (l'lont ., C&nada) , Wate r supply or . Susquehanna River Basin (Pa. , Md. , ) , Hydrography or . 

Records or discharge have been published also In State reports. Some or these are 

not contained In the publications or the Geological Survey or are revisions or records 

previously published In 1 ts water-supply papers . The table on !ollowlng page contains a 

list or these reports. 
6 PUBLICATIONS 

state report• containing oompllatlon ot reoord.e ot d1aoharge 

State 

A.l&bl.m&o • o o ' 

Arkanaa• ••• , Oonneot1out. 

no ....... 

Yelll' 

endU\g 

Georgia •••• , 190& Do....... l920b 

Illinoh.... l9ll Do....... l9~t 

Indiana ••.• , 1927 

no ....... lVW" 

Io,.. .... .... 19~2 

!tan~~:::::: m~d Do....... 1928• 

Do .... .. , lV~&f 

no....... 19396 

lontuoq. ... 1920 

""')'land·.. . lQ37 

l'tinnetota... 1912 

JUuour1.... lV215 

Do........ l9~Qh 

I e'bratlca ••• , 1Vl4 

Do....... lQ281 

Jlew Jer .. y, • 1928 

Do....... l93tl 

!few rltxloo., 1925 

Worth Oaro- 192~ 

~~:.... . 19~ek 

North Dakota 1920 

Do. . .. ... lQ27l 

Ohio........ lQ2l" 

Report 

Bullo 17' water power• ot Alabama •••• Streu .. ~agins .Report 1 • •.... · .• · · • ••• 

Bu~~~:otl~:~~r reaouroee ot 

6th 'biennial report. • .• • · · · • • • • • · • • • 

Bull. 1&, Water power• ot Oeoraia . • • • Dull• 38, Water power a ot Georgia • • • • Water reaouroee ot lll1no11 . · • • • • • • • • Strea.m-tlow d.ata or Illino11. · .. ,. · • • Pub . 72, Surface water eupply of 

Indiana . Pub. 112, Surtaoe water tupply ot Indiana . Stree-tl ow rooorch ot Iowa .• ••• • • • ·• Surtaoe water• ot Ianaaa . · • • • · • • • • • • • . , , .do., .•.. , .•. , ...•• ,, . ,., ...•.••• • 

•• • • do., •• , ...•. , ... , ••• • . , .• . •..••.• 

stream-tlow c1ata or lana a a •• 0 ••• • •••• 

.... do .............. . ............ .. .. 

surtaoe watera ot ltentuolcy ..• .•• •• • .• Plow data anc1 drart atorage ourvea tor major ttreamt l.n Karyland. 

water-reaouroea 1nveatigat1on or !Unneeota. Vol. 20, 24 uriea, Water reaourooe ot l1.1uour1. 

Vol . 2&, 2d ur1u, Surtaoe watera ot l1.1nour1. lot h:J'dl'Ograpbio report .••.•.••• .• ••• 

2c1 hfdrograpbio report •••. •.... .....• Bull . 33, Surtaoe water eupply ot Hew Jeruy. 

s~:;:t, R~r~!w &j.~~;~oe water 

Surface water aupply ot New nexico· • • Bull. 34, D1eoharge recorda ot North C&rolina atreama . Bull. 3Q, Ohoha.rge recorda ot North Carolina ttrewne. Report to Governor ot Jfort.h D&kota on flood control. surtaoe water l n North DIJcota •...•.•• Bull . 73 , Ohio atream flow . ......... , 

Do·,..... l9~Qn Bull. 200, Oomp1lot1on or atreu.-now rec.orda o! Ohio. 

Oregon •• ,.. . 1914 

Do....... l92t0 

Do ...... , l930P 

Do....... lQ3&Q 

PeMI1l....,l.& l9ll 

Do....... lQ~2r 

Tannen••·,, Hl24 

Do....... 19301 

Utah ••••. ,., 190& Do....... l9l0 Do....... l9l6 Virginia... . lQ27 

Waahi.ngton.. 19~~ 

W1aoone1n... 1914 

Bull . 4, water reaouroea or the state ot Oregon. Bull. 7, Water reaourc.et or the State ot Oregon. Bull. 8, Water reJourOII or the State of Oregon. 

Bul:-1. 9, Water ruoureea at the 9 ate or oregon. Report ot the Water SupplJ Oomm.1u1on ot Pennayl v~.n1a, 

Stream-now recorda or Pennaylnn.la., 

Bull. ~4, Water reaouroea or Tenneaaee. 

Bull . 40, aurtaoe water• or Tennea .. e, 6th biennial report, State ltng1neer •• 7th 'biennial report, State lng1neer •• lOth biennial report, State Engineer. Bull. ~l, Water ruourcea o! Virginia. 

Bull. 61 Monthly arn1 yearly aumm.ariea ot h)"d.rc=etr1c d.ata. let re port or Railroad. Oo::tduion or Wiaocnain to Legillature on water powera . 2c1 report or Railroad. Com=1ta1on ot W1acona1n to Legialature on water powera . 

Iaaued 'o7 

Geological BurveJ ot Alab&ma. Arkan1a1 Geological Su.rve7 • State Oeo1ogioal and. Natural 

oo~=~~r!u~~t:{; Water 

Oommiaaion. Oeolog1oa.l Survey ot Georgia. Do. Rivera and. Lake• Oo~iaa1on . 

Divh1on ot Waterwar•· Department ot Oonaervation. 

Do . 

IOW"a Sta t e Planning Board., ttanaaa Water 00tllft1al1on. 

Do · Xanaaa State Board. ot Agrioul t-ure. 

Do· 

oo . X.entuoX,. Oeologioa1 Surv•J• state Pl.a.nnina Oo:r.:d ation and. Water Reaouroe• Ooa- m1ea1on . Stata Drainage Oomm1aa1on. 

H1uouri O.o1ogioal SU.r-ny an4 Wa tar Raaouroet. 

Do. 

Bureau ot Water Power, Irri- gation, anc1 Drainage. Do. Depa_rbnent of Ooneervation and Developnent, State Water Polioy Ctn:=.i111on. 

:;!~~:~t t~~ ~~~==r~i~:er. and Developnent. 

Do. 

State chief ng1..~eer. 

State Planning Board. B:ngineer1na Experiment Sta- tion , Ohio State Onivereit,.. 

Department of Agriculture, D1v1e1on of Oonaervation and. Natural Reaourc••· O!'tioe ot t he State Bngineer. 

Do . 

Do . 

Do . 

w•;:::n~f~~ ;~mmiuion of 

Department or Poreata and. Watera. Department or Bducation. 

Do. 

Ottioe ot the State Engineer. Do. 

Do. Oonaervation Ootmlitaion . 

Department ot Oonaervation ancS Develop:1ent. Railroad Commiuion ot Wi1cona1n , 

I>o. 

a Includ.ea record• ot month1J ¢1acharge in eeconc1- teet per equa.re mile tor yeart 1912-33. 'b Inc1uc1ea reoot'(1a tor year• 1907- 18. o Ino1ud.et recorda tor yeare 1927-~0. 

d Includ.ea record.• tor yeara 1919- 24. e Includes recorda tor yeara 1924-28, t Includ.ea recorda tor yeara 1928- :55. g Ino1uc1ea reoorde tor 7eara 1935- 39, h Inc1uc1ea recorda tor yeara 1927-~9 . 

1 Include• record.a tor yeare 1914-28, 

j Includ.ea recorda tor years 1928 ~4 . 

lc Includ.ee recordt tor yeara 1889- 193&; recorda ot dai17 and. monthly d.1a - cbarge are not 1ncluc1ed. 1 Ino1ud.ea record. a tor year a 1882- 19:57. m Inc1uc1ea all available recorda prior to 1921. n Inoludea reoord.a tor yearo 1902 ~9 . 

o Includes recorda tor yeara 1914-24. p Includes recorda tor yeara 1924-30. q Inelud.ea recorda tor years 1930-36. 

~ i~~i~~:: ~:~~~= ~~=ki;a~~~~:!~;~ !or yeua 1920-30. t Includ.ea recorda tor year• 1914-2~. 

N2te .- ln ac1c1it1on to the reeord'a contained 1n the reponta 1iatec1 above, the tollow1ng 

~!~i~~rn~:~ ~~~~~!c1~~~~n~~t~~:~ ~~~~ ~~~1!~a :m~~~.~~i ~~~~~~:, r:~~~:k~~ ~!! ~!~f:~, New York (alao New York City Board ot Water Supply), North Dakota, Oregon, PeMaylvania , Hevad.a, Waehington, and. Wyomino . 
PUBLICATIONS 9 

The reports listed In the r or egolng tables contain the customary records or discharge 

~ollected during the systematic operation or gaging stations. Detailed Information on 

the stage and dis charge or many streams during major floods hes been Included In special 

reports on these floOds published by the Geological Survey. The more r ecent or these 

reports also contain other pertinent hydrologic Information and analyses and comp!latlons 

or data relating to earlier noteworthy floods. The fo llowing list gl vee the numbers and 

titl es or these reports. 

wa tar-Supply 

Paper 

88 

92 

96 

The Passai c flood or 1902 . The Pas sal c floOd or 1903 . Destructive floOds In the United States In 1903 . Destruct! ve floods ln the Unl ted Sta tee ln 1904. 

Destructive floods In the United States ln 1905 . The Ohlo Valley flood or March-Apr!l 1913 . Southern Call rom! a floods or January 1916 . The Arkansas R1 ve r flood or June 3-5, 1921. 

The floods In central Texas In September 1921. 

Some floods In the Rocky Mountain region. The New England flood or Novembe r 192? . Ploods In the Unl ted States, magnl tude and frequency. The New York State flood or July 1935. 

147 

162 334 

426 

46? 

488 

52o-o 

636-C 

771 

773-E 

796-B 

?96-C 

?96-0 

?96 

?99 

BOO 

616 

636-A 

636 

642 

643 

644 

64? 

66? 

669 

Flood on Republican and Kansas Rivers, May and June 1935. 

Flood In La Canada Valley, Call!. , January l, 1934 . Major Texas floOds or 1935. 

The floods or March 1936, Part 1 , New E:ngland Rl vers . The !loOds or March 1936, Part 2, Hudson River to Susquehanna River region. The !loOds or March 1936, Part 3, Potomac, James, and upper Ohlo R1 vers. Major Texas !loOds or 1936. 

Stages and flood discharges or the Connecticut River at Hartford, Conn. 

Floods or Ohio and MISSISSippi Rivers, January-February 1937 . Floods In Canadian and Pecos River Basins o! New Mexico, May and June 1937. Floods or December 1937 In northern Call rornla. 

F'loods or March 1936 In southern Csll!ornla. 

Maximum dis cha rges at stream-measurement stati ons through September 1936. 

Hurrl cane floOds or September 1936 . F'lood or August 1935 In I!Usk!ngum Rlver Basin. Ohlo. 

RECORDS OF' DISCHARJE: COLlECTED BY AGENCIES OTHER THAN THE GE:OLOOICAL SURVEY 

The rollowlng table contains a list or gaging stati ons r or the area covered by this r eport at which records or discharge were collected during the water year October 1940 to 

September 1941 by agencies other than the Geological Survey. The records ror these stations are not contained In publ ications or the Geological Survey. 

Recorda ot d.hoh&rge oolleoted. by aseoolea otber tb.a.n the Oeologleal SurTey 

Alult o Oreek . .. .. 

Arrer Oa.oal . .....• 

OtClp aaleu RiTer ••. 

Do ..... ...... . 

Do ...... ... .. . 

Oe.,.lla Rh·er., .... 

Bl Paao •••a.a• outtall. 

!a at Side Canal . .. 

Goodenough Springe 

Lae Vaoaa A.rroyo. , 

Leaaburg Canal . . . . 

Peooa Rl•er. , .... . 

Location 

Near Prealdlo, Tex .... . 

Nea r Arrey, N. Mex ....• 

Near Bartone L&ndl.ng, !A. At Cameron, La . ... .. .•. At Southern Paoiric R. R. bridge near Lake Charles, La. Near Del Rio. Te x .. .. . . 

Hear !1 Paso, Tex ... .. . 

Per1o4 

1~1S , 

1920- 41 1~41 

1~41 

1~H 

t1931-U 

1936-H 

Collected by 

International Boundary Co-.iaaion, u. S . Section. 

Bureau ot Reol&.M.tlon . 

Corps or Img1neera , u. s. J.Nr;r. 

. . '. d.o .. ' ·• '' . ..... .. ' .. . . do ...•........... . 

International Boundary Comm1aa1on, u. s. Sec tion. 

. . . . do • . ........ . . . . .. 

At Meeilla Dam, near 1918- 18, Bureau or Reclamation . Meail la Park, N. alex . 1920 - 41 

Near Coll18took:, Te x ... .. tl931- n International Bounda.ry Co'ICI11.aaion , u. S. 

Section. 

Near Villa Acuna, Coahuila , Mexico . 

At head, near Seldon, N. Mex. Near Coma took, Tex ..... 

1938- 41 International Boundary Colllltiaaion, Mexican Section. 1917- 18, Bureau of Reob.-.tion. 1920- 41 tl93l-.tl International Boundary 

COl:lllliuion, U. S. Section. 

r.emarlca 

Publ1ahec1 in water bulletina or Inter- national Bound.a.ry Co=duion. Unpublhhed. 

Do. 

Do . 

Do . 

Published in water bulletins of Inter- national Boundary Cozma.iaaion. Do • 

Unpub1hho<l . 

Publlahed. ln wa ter bulletlna or Inter- national Boundary Oot:m1.4

.aalon. Do. 

Unpubl1ahec1. 

Publlabed. ln ••ter bullet1na or Int er- national Boundary CoJCmiaalon. 

t Reoord.a tor earlier ye ara publlabed in Ooologloal Survey water-supply pa.t>era. 
10 RECORDS or D!SCHARJE COLLSCTED BY AGE:NC!ES OTiiER TiiAN THE GEOLOG ICAL SURVEY 

Records of discharge collected by agencle:. other than the Geological Survo:r--Contlnuod 

Stroa.a Loca~lon Period Collected by Remarks 

Pinto Creek ••• •.. • 

Rio Alamo • • • • ••• • • 

Rlo Escondido •.... 

Ri o Grande,., ••• • • 

Do ••••••• .•••• Do •.. .• . • ••••• 

Do ...••. • .•• • • 

Do •• • •• • •••••• Do ••••• • . ••.•• 

Do ••••••• . • •.• 

Do •••••••• ••• • Do •• ••• .•.•••• Do •••••••••••• 

Do ••••••••• ••• 

Do ••••••. ••••• 

Do • ••. •••• .. .. 

Do •• . •• • ••.••• 

Do •••.•... .. . . 

Do ••••• •• • • ••. 

Do ••.•• • •• ..•• 

Do .•••. • ... • • • 

Do .•.••••• • •.• 

Do ••••••.•.••. 

Do •• . •• •. •• • •• 

Do • .. •..••..•• Ri o Sa lado • ••.••. • 

Rio San Diego ••... 

Rio San Juan . . ... . 

Ri o San Rod rigo •.• 

Near Del Rio, Tex .•.. ,.. tl931·41 Intern,.ti onal Boundary Commlaalon, 0 . S. 

Sect ion. 

Klor, Tamaullpas, Mexico. 

At Villa Puente, Coahuila, lle:doo. 

1924- 41 

1923-ti 

I nternational Boundary Co=m.l aa ion , Mexican 

Section. .•.• do . . . .• ..••...••.• 

Below American Da.m, near 1938-41 El Paso, Tex . ln to mat tonal Boundary Coi:IIDiaaion, U. S. 

Section. 

Bolo• Brown..&Tlll e, Tex •• 

County l i ne station n ear El Paso , Tex . Hear De l Rlo, Tex ••..••• 

Ea.gle Pass, Tox .. . .... , . Near Rl Paso , Tex . . • ..•• 

Below old Fort Quitman, Tex. Hl ld.algo, Tex . •..•. '9 •• • • 

At Johnson Ranch , Te x • . • At Island station, near El Paso, Tex. J au.rez, Mexico ... . . . ... .. 

1934-41 

1938-41 

t 1931-41 tl931-41 tl931-4l tl931- 41 

tl931-41 

1936-41 

1938-41 

1938-41 

. ... do • • ...•.•••.•• .•. .. • . do . .• .• ..•..•••••• 

•.•• do •.•...•••••••• • • ...• do •..........••..• . . • . do . •....• . •..••..• .•• • do ••• • •... •.. ... .. 

••• • do . • •.• . .• •.•..• . . • • . . do • • .•••• . • • • • . . .. •.• . do •• . . ...• . •• . •.•• 

Internationa l Boundary Comadaa ion, Mexican Section. Langtry, Tex.......... .. tl931 - 41 International Boundary Commission, 0. S. Section . La Nutria, 9.6 mllea abov e Ca ndelaria, Te.x. Larodo , Te x .. . ...••.•..• 

Leasburg Dam, at Seldon, N. »ex. W.at-.,mo ras, Tamaul1pas, Mexico. 

Merc edes Bridge station, Tex. 

Above Pre a 1d1o , Tex ..•.. 

Selo7f Presi d io, Tex •••• Rto Grande Cl t 7, Tex ••• . Roms., Tex • .•. . .•.•...•.• 

Zapata , Tex •....•..... . • Near Gue rre ro, Tamaultpaa, Kexieo . 

J t.menez, Coahuila, Me xico . 

Santa Ro aalta, Tamau- lipas, Mexico. 

Near El lloral, Coahuila, Mexico. 

1935-<41 .... (lo •• ••• ••• •• •• • • • • 

tl926-41 International Boundary Coumdea1on, Moxlca.n Section . 1919-41 Bureau of Reclamation. 

tl926-41 International Boundary Commission, Mexican Section. 

1932-:59 International Boundary 

;~rn- ~~t~:~on, o. s. 

t1926-U . • . • do . •. . .. . •....•..• 

•1926-41 ••• • do ••.•.•. . ••.•• • •• 1932- 41 • . .• do .•• •• .. •.• •••.•• t l925- 28, . ••. do . ..••..••• • •••• • 1931-41 1932-41 •••• do ••••.••..• . ..•.. 1924-41 Int ernationa.~ Boundary Comztlss 1on, Mexican Section. 1924-41 • ••• do •..... . ... . ...•. 

1923-41 ••.. do .•.......•..•.. . 

1922-41 .• .• do . ..... . ........ • 

Published tn water 

bullet1na of Internet tonal. Bou.nda17 Coada a ion, Do . 

Records ror 1923- 24 and 1928 publhhed ln report or Inter- national Water Com- mlulon, Un ited States and. Mox.loo , 0 . s. Section (B. 

~o Se~~~~ ~!s~i~ ~, Antonio a boTe Puente; recorda ror 1932-41 publhhed ln water bulletins or Inter- national. Boundary Commiaa1on. Publlabed 1n water bulle tina of Inter-- national Bounda.r)' Comtaiulon. 

Do. 

Do. 

Do. 

Do. 

Do . 

Do. 

Do • Do • Do • 

Do . 

Do . 

Do . 

Do . 

Onpubl1ahed. 

Publlehed i .n wa ter bulletins or Inter- national Boundary Commiaelon . Do. 

Do . 

Do . Do . Do . 

Do . Do . 

Records tor 1924-28 published in report or International Water Commission , United Sta tes a.nd 

Mexico, u. s. Sec- tion; reco rde for 1932-41 publiehed in water bulletins ot International Boundary Commieaion. Publlabed in wa ter bulletins or International Boundary Cot!Udsalon. Records tor 192:5-24 and 1927-28 pub- lished 1n report or lntern.otlonal Water Commlasion, United Statea and Mexico, o. s. Sec tion (H . 

~~c Se~~~); ;:~o;~:s ·' tor 1932-41 publlahed in water bullet1ne or International Bounda.ry Coamdssioo. 

l Recorda tor earlier years published in Geological Survey wa ter-supply papers. Recorda for earlier years published in Geological Survey water-supply papers ae Rio Grande near 

BrownavUle , Tex.. 
RECORDS OF' DISCHAFUE COLU:CTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY ll 

Recorda of discharge collected by agencies other than the Geologi cal Survey--Continued 

Stream Location Period Collected b'y Remarks 

San Pel1pe Creek ... Near Del Rlo, Tex .. .•. . . 1931-41 International. Boundary Published l.n water 

Commiselon , o. s. bullet lna or InterSection. national Boundary 

Commi a a ion. 

Terllf\6\1& Creek . . .. :~·~;~ri;n~~: Tex ••.•• 1n2- n . •.. do . . ... . ......... . Do . 

Weat Side Canal. . .. near 1916- 18, Bureau of Reclamation. Unpublished . 

Mesilla Park , N. llex. 1920- 41 

Mote .- The Soil. Conservation SerTice made studies or runoff t'l'om 6 areas of leu tban 100 acres eaC"'l"iiiar Meaqu1te, Tex . ; 35 area a, of w-hich 23 were leas than 50 acre a and 12 were bet'ween 50 and 

~~~ ~gr:~ ~e:~a:·~~~r T;~~a 3 p:~e:~ ~x:~a=~~ .;~.:c~~a ::~ht~::r ~bl=~~ ;e:~~h 3 n:~~·:l~~q~=~~e , Jf. Me x . The recorda are 1n the tiles ot that organization. 

COOPERA TIO!I 

The work In the several States was done under cooperative agreements with the organlzationa listed below: 

Colorado : orrlce or the State engineer, M. C. Hlnderl!der. 

Louisiana: State Department or Conservation, \1. H. Hodges and J. L. McHugh, Jr., 

co:nr.tlssloners. 

New Mexico: State engineer, T. M. McClure, and the Interstate Stream Commission, 

T. M. McClure, secretary. 

Texas: Board or Water Engineers, consisting or c. s. Clark, chalnnan, 

A. H. Dunlap , and J. \1. Pritchett. 

Financial assistance was turnlshed by the Corps or Engineers, United States Army, In 

the operation or 63 gaging stations, or which 4 were ln Louisiana, l In New Mexico, and 

68 In Texas. 

Financial assistance was also tum! shed by the oruce or Indian At!a1rs or the Unl ted 

States Department or Interior In the operation or gaging stations on the Indian Pueblo 

lands In New Mexico. 

Aclrnowled8JDents are due the Bureau or Reclamation or the Un i te<! States Department or 

the Interior, and the Weather Bureau or the United States Department or Commerce ror assistance In collecting the records published herein. 

Assistance In collecting records ""a rendered also by the following organizations: 

New Mexico: Ague Pura Co. , the Alamogordo Community Ditch , the town o! Alamogordo, 

and the New Mexico Power Co . 

Texas: Dallas County, the city or Corpus Christl, tlle c1ty or Houston, the San 

Antonio Public Service Co., Tarrant County Water Control and Improvement District 

No. 1, the West Texas Utilities Co., the Lower Colorado River Authority, the Brazos 

River Conservation and Raclamatlon District, the Upper Guadalupe River Authority, 

Red Blurt Water Power Control District, Pecos County Water Improvement District No. l, 

and Reeves County Water Improvement District No . l. 

DIVISION OF' WORK 

The stream-gaging work was conducted by the water resources branch or the Geological 

Survey Glenn L. Parker, chle! hydraulic engineer, Carl G. Paulsen, assistant chle! 

hydraulic engineer, and Rudolph G. Kasel, chle! or the division or surface waters. The 

data ror the stations In the several States were collected and prepared !or publication 

under the supervision or district engineers as follows: In Colorado, Robert Follansbee, 

the work being done In collaboration wt th M. C. Hlnderllder, State engineer, and L. T. 

Burgess, State cllle! hydrographer; In Louisiana. D. H. Barber until Oct. 31 , 1940, 

488588 0 - 43 - 2 
12 DIVISION OF WORK 

succeeded by act1ng d1str1ct eng1neers H. c. Bolon, Nov. l, 1940, to JUly 17, !941, and 

E. B. R1ce subsequent to JUly 17, 1941; in New Mexico, Berkeley JohnSon; and in Texas, 

c. E. Ellsworth . 

The records were reviewed and the manuscript prepared ror publication under the <lirection or B. J. Peterson, engineer in charge, an<! M. c. Boyer, associate engineer, section 

or reports . 
GAGING-STATION RECORDS 13 

ME:lU1ENI'AU RIVER BABIN 

Bayou Ne z p i que n ear Basile, La. 

Location.- Wire-weight gage 1 lat. 30°28'50', l ong. 92°37'55' in NEtNWt sec. 1, T. 7 s., 

R. 3 w., Louisiana meri d lan, at brtdge on u. S. Highway r9o, a quarter or a mile down- stream !rom Missouri Pacttic Ra1lroa a bridge and 2 miles west ot Basile. Datum or gage 

~j~o tee t a b ove mean sea l evel , datum o r 1929 (levels by Corps or Engi neers, u. s. 

Reco rds avai l a ble.- October 1938 to September 1941. 

Extremes.- Maximum discharge d u ring year, 7, 190 second-teet Dec. 17 (gage height, 23 .40 

teet); mi n imum observed, 2 .6 second-teet Apr. 19 (gage he!gh t, 1.73 tee t). 

1938-41: Maximum dis charge, 22(300 sec ond-teet Aug. 11, 1940 (gage he!gh t, 31.08 teet) ; m!n!mum obse rved, 0 .4 secona-root May 16, l6 , 1939; m!n!mum gage t e !ght 1.16 teet June 6, 1940. ' 

~- Records !atr. Gage read t w!ce daily. Divers!QIIs above stati o n r o r ! rr!gat!on . 

Rating tablet, water year lG40-4l (gage height, 1n I'eet, and di1obarge, in 

aeoond .. teet ) 

oot. to JUne ~ JUne ' to Sept. ~0 

1.8 4.0 ~.~ 61 10.1 8le 21.6 4,610 e.o 6. 0 ~.~ ~9 ~ ne e.o s.o 3.7 ea 14.1 1,200 22 . & &,810 2.2 9.0 ~.7 55 10 .~ 7 

2.2 l~ 

··~ ;8 l&.& 1,UO 2~.4 1,1;o 2.4 1~ 4.& 98 14.0 1,170 

e.& 22 &.1 147 17 .& 2,100 2.7 20 &.~ 147 16. 2 1,370 

2.7 28 &.1 22~ 1;.& 2 , G2& e.; 2& e.~ 224 15.0 1,&80 

e.; ~& 8.1 404 20.& ~.610 lfote .- Same l&~et . •• preceding table above 

Oieoharce . in aeoond-tlet , water year October 1G40 to September lG4i 

Do. Oot . Nov . Deo . Jan . P'ob . War . Apr . IIO¥ June July AU&. Sopt . 

1 2,;oo 3g z,eoo 2,&70 1,200 1s; 260 126 1<4,160 602 !a/~40 23 

2 ~-~0 78 ~,64.0 2,&&0 771 134 1~4 84 4,4GO lr&lg )<7g6 k&;e 3 560 248 3,340 2,3&0 764 g9 ;8 tl6 4,810 k1,2;o ·~4~ 1,2&0 4 100 2&0 3,120 2,080 981 78 80 &4 4,280 1,680 1&0 1,480 6 k&OB 157 2,840 kl,~50 gee 82 &g k88g 3,840 l,G&O ;e 1,510 

6 k3~2 11; k2,140 1<762 878 60 47 k2,780 3,400 2,170 lOB 1,480 

7 lgQ 13& kl,8l0 k430 6;4 ea 38 k4,210 ~.060 2,1&0 kl77 kl,110 8 186 163 1,680 286 8&7 7& 29 •,;oo k2,UO 1,;1o 287 1<770 

9 104 U7 l,~o 1;"7 5ee 10; e~ &,310 k2,000 kl,leo 384 678 10 n kl,2&0 1,&20 le8 489 118 18 4,860 kl,BJ.O 1<740 470 ~4 

ll 81 kl,&70 1,470 lU 36; 103 u 4,260 1,3&0 k46& «1 703 12 7l 2,0&0 1,400 123 237 Bl 12 3,eeo 1,180 kl,1'70 279 778 13 && 9,430 k2,3&0 100 le4 7& ;.e 3,1eQ 1,210 k2, 160 136 68; 

14 &0 2,630 k3,380 ;2 120 70 8.4 112,600 1 , 2&0 k2 , '720 161 362 16 &4 2,460 k:&,1eo 1e; g. 77 8. c kl,76D 1,200 2,1;o 220 286 

16 47 e,aeo 8, 340 k&g& 71 117 4.4 n,120 1,100 3,020 171 417 

17 43 1,;70 7,1&0 ;e1 84 138 ••• k503 1 ,360 :5 ,280 lOB 6&4 18 38 lrl~: &,630 1,200 53 213 

··~ kl8l 1,480 3,330 ea 727 18 50 &,&eo 1,310 45 318 e . 8 40 1,&70 3,220 40 7&6 

20 21 k37l 4,15&0 1,aoo 4g kl,l80 16 22 1,'730 :s,oeo 97 &0& 

21 16 223 3,800 1,1110 42 kl,'740 lg 15 1,7&0 2,840 lg 3;9 

22 23 148 3,360 1<931 42 k2,370 43 12 1, 7&0 2 , 800 le 241 

23 14 11& k2 1 680 k&;s &7 k2,780 k373 8.8 1,&10 e,eeo 12 189 

24 18 klgg kl,;6o 6&e 103 k~,4&0 760 ••• 1,420 2,860 8.4 kl,eoo 

26 l& kl.,130 kl,380 732 210 k2,2;o gg7 4.8 k2&g 2,840 7 ,8 kl,g50 

26 16 l1Cl,800 1,340 kl,~eo 338 2,&70 ,100 4.2 k42g 2,800 4.6 ki,770 

27 16 k2,680 1,':'60 1,440 332 2,410 ,120 6.0 371 2,&70 18 1r~,uo 

28 13 k3,0l0 2,180 1,5&0 276 2,160 ,030 &g e;o e,tao 50 3,0BO 

29 12 3,1&0 2,h30 1,730 - kl,4VO k&&7 kBM 8;7 2,250 37 3,120 

30 ;,4 3,460 9,720 1 1 640 - k8e; k2&0 k2,2l0 Hg 2,0&0 2; ~.030 

31 18 - 2,740 1, 460 - k467 - <3,460 - 1,820 23 - llontb Second- Mu:iaua 1111n1•ua lloan Runott 1n toot-da)-a acre-teet 

Ootobor .... . •. . ..... . ..... . ....•.. , ...... . . 10,36&.4 2,;oo ;.4 334 20 1 640 

Ho•eaber . ....... . .. . .. . .......... . •.. . .... , 35,132 3,4&0 3g 1 ,204 71,870 

Deoeaber .... . . ,,, ... ... . . . . . . ... .. ... . . . ... g5,e60 '7,1&0 1,340 3,086 189,700 

------- ------ ------ ------ -- ---- Calendar year 1;40 . .........•..•........ 682,482.4 22,700 .& 1,&18 1,1'76,000 

------- ------ ------ --~--- ---- -- January .... ........... ............•..•.. .. . 32,120 2,&'70 ;2 1,038 ~.no 

1obruary ....... . .. , . ... . ..... . ...... . ...... 10,~0 1,200 42 380 21,080 March .......... , ..•... . ...... • .. • ....... , .. 2&,;27 :5,4&0 50 83& 61,430 

April ..........• ..•.... •..•..• . .•. ....... . · '7,103.& 1,120 2.8 237 14,080 llo.y ..... . ...... .. ... ... .................... 4'7,132 &,310 4.2 1,620 03,480 June ... . ........ . . • . . . ... . ... . ....... .. .. . . 68,326 4,1510 371 1,044 115 , 700 July ....................... ... ............. &'7,&66 3,330 466 2,182 134,200 Aucu.at .. .. .. .. . . . . ... . ........ . . ...... .... . 5,083.'7 1,340 4.6 193 11,880 

September . . . ... .. . ............. . ..... . ..... 34,296 3,140 23 \ , 143 e8,020 

Water year1040-41 ······ ················ 431,318.7 7,1&0 2 . 8 1,182 866 600 

k: Computed 'by ue1ng rate or change or etage •• a tactor. 
14 MER1ENTAU RIVER BASIN 

Bayou Des cannes near Eunl ce, La. 

LOcati on.- water-stage recorder, lat. 30°29'00' , long . 92°29'25" , In SWtsEt sec . 32, T. ~R. 1 w., LOuisiana meridian, at bridge on u. S. Highway 190, 3 miles downstream rrom Missouri Pacl!lc Railroad bridge and 4 miles west or Eunice. Datum or gage Is 14 .84 reet above mean sea level, datum or 1929 (Louisiana Geodet ic Survey bench mark; 

levels by Corps or Eng ineers, u. S . Anny) . 

Records available .- October 1936 to September 1941. 

!:Jctremes.- MaJCimum discharge during year, 51.~10 second-teet June 1 (gage height , 16.50 teet); minimum, 0 . 3 second-root May 24, <::>; minimum gage height, 1.52 reet May 25. 1936-41: MaJCimum discharge, 9, 520 second-teet Aug . 10, 1940 (gage he ight, 21.13 

reet); no now May 7, 10-16, and July 10, 1939. 

Remarks.- Re cords !air. Dive rsions above station !or Irrigation. Some regulation May to --uctolie r by small I rrl ga tl on d I vera I on dams . 

Discharge , in second-teet, water year October 1940 to Septe•ber 1Q41 

DOil Oct . 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

691 

266 

58 

28 

lS 

~ 

1~ 

1~ 

11 

g ,s 

8.o 

6.6 s.8 

4.9 

4.6 

4.0 

~.2 

2.8 

2.4 

2.1 

2 . 0 

1.8 

1 . 6 l . S 1. ~ 

1.1 

1.1 

1.8 

2 .4 

2 . 0 6 .2 

Nov . 

27 

76 

70 

56 

50 

~4 

26 

19 

16 1,070 

1#700 

2,780 

2 , 440 l , e?o 1 , 280 

967 

630 

161 

46 

24 

18 

16 

15 

15 

M7 

81~ 

1 , 060 

,~0 

1 ,250 1,000 

Dec . 

648 

344 

~05 

249 

148 

7S 

18~ 

548 

684 

722 

623 

~24 

849 

1 ,750 3,490 

2 , 520 

1,620 

1,290 

1,020 770 

216 

58 

~~ 

2& 

110 

67~ 

991 1,490 

1,&00 

1 , 260 

960 

Month 

Jan . 

510 

1~ 

46 

~ 

37 

Feb . 

~2 

70 

248 

~og 

224 

30 111 24 70 

21 56 20 48 19 42 

18 

17 

15 

19 

122 

507 

714 

774 

725 

464 

1~ 

42 

25 

60 lg7 

518 

688 

706 

588 

282 

79 

28 

18 

1~ 

11 

g,o 

8.o 7.0 

6.~ 

5.7 

7.2 

12 

13 

11 

u 

62 

go 

87 

56 

October . .. ...... . ..... .. .... , .. . . November .. ................•...•......•..... Oece•ber ....... . 

Calendar year 1940 

~~~Zy ::::::::: ::: .. .................. . llarch . .................. . .... ::: ~: ::::: : :: . 

~;11 :::: ::::::::::::· ··: ::::::: .... . . June .................... ~ ................. . July .... . .... , .. ....•.. .•..• . .. • •.•.... August ........ . .... . .. . Septe• ber . . .. ... . . 

later year1940-41 ... : ..... . .. .. . .. . . 

Mar . 

~1 

19 

1~ 

10 

8.4 

Ap r . 

16 

12 

9.4 

7 .6 

6.5 

May 

15 

8 . S 5.4 

~.g 

607 

9.2 

59 

~03 

~16 

154 

5.2 .~ 

4.9 2,()20 4 . 12,Qgo 

3 . 6 1.4~0 

3.3 1 ,060 

54 

23 

18 

52 

41 

2J. 

17 

14 

l4 

522 

2 

2 . 8 

2 . 8 4 . 2 ~.8 

~.2 

2 .5 

2 .0 

1 . 8 5 . 7 

15 

164 

450 

914 

872 

, 090 

,250 

,060 

673 1 , 220 

196 

44 

26 

20 

17 

18 

1,430 

1 , 210 

880 

~57 

69 

Secondroot~ays 

1,195 . 6 18,946 

25,581 

200, 531.1 

------- 7 , 570 

1,695. 2 6,964 . 6 6 , 813 . 6 14,336 . 0 16,811 

12 , 261 

420.5 

5 ,352.2 

117,946 . 7 

574 

133 

~2 

20 

12 

6 . 1 

3 . 8 

2 . 1 1.5 

1. 2 

1.1 

.6 

.4 

~ .~ 

, g 

2.8 

50 

264 

,160 

3,450 

691 2 , 780 

3,490 

9,350 

774 

309 

1,250 

,4~ 

3,450 

5 ,100 

1 , 910 

74 

954 

5,100 

June 

6,100 

~.200 

1,700 

1,200 

819 

~62 

147 

16~ 

291 

297 

185 

20~ 

263 

209 

88 

176 

298 

~97 

431 

~42 

217 

132 

161 

170 

76 

~3 

32 

56 

44 

28 

1.1 

15 

25 

. 2 

15 

5 .7 

8.4 

1.8 

.3 28 

10 

1.4 

7 . 2 

July 

17 

20 

54 

267 

~70 

294 

1~ 

51 

2J. 

10 

11 

581 1,1?0 

1 , 910 1 ,710 

1 ,320 1,070 

794 

465 

263 

214 

~16 

176 

146 

9~ 

61 

215 

288 

137 

59 

~g 

Mean 

~-6 

632 

825 

648 

244 

60 . 5 225 

227 

462 

560 

396 

13 . 6 

178 

2~ 

18 

12 

g , 2 

10 

12 

~7 

7 4 

47 

~2 

20 

14 

l4 

11 

6 . 3 

0 

6 . 6 5.4 

~-9 

3.~ 

1.8 

1.4 

\.& 

2 . 8 

2 . 5 

2 . 5 3 . 2 5 . 2 7 . 9 

l4 

16 

Sept . 

2~ 

gs 

162 

169 

196 

163 

117 

85 

72 

66 

61 

52 

47 

~4 

~6 

55 

58 

54 

57 

~3 

18 

10 

7.2 

622 

954 

790 

612 

415 

226 

94 

Runott in acre-teet 

2 ,370 

37,580 

60,74 0 

397 ' 746 

15 , 010 

~.360 

13,810 

13 , 510 

28 , 440 ~,MD 

24 , 320 

8~4 

10, 620 

233 , 934 
CALCASIEU RIVER BASIN 15 

Calcasleu River near Oberlin, La . 

Location .- Water-stage recorder, lat. 30°38 '25", long. 92°48'50', In NWtNEt sec. 7, T. 

5 S., R. 4 W., Lou is iana meridian, at bridge on State Highway 52, 3 miles northwest or Obe rli n and 15 miles upstream !rom Whiskey Chitto Creek. Da tum or gage Is 39.43 t eet ( revised) above mean sea level , datum or 1929 (Louisiana Geodetic Survey bench ma rk). 

Drainage area .- 753 square miles. 

Records a vailable .- August 1922 to January 1925, September 1938 to September 1941. 

Extremes .- l1axlmum discharge during year, 18, 000 second- teet Nov. 29 (gage height, 19.39 t eet); minimum, 70 second-teet Oct. 27, 28 (gage height, 3.58 t eet) . 1922-25, 1938-41: Maximum discharge, 34,700 second-!eet Apr . 7 , 1923 (gage height, 18.48 feet, datum then In use), !rom rating curve e xtended above 14,000 second-!eet; 

minimum, 42 second-teet Aug. 16, 1924. 

~ 

RemarkS .- Records good . Water used by paper mill at E:llzabeth Is pumpad rrom wells and 

d ischarged Into Mi ll Creek about 20 miles above station. This discharge, estimated to be about 5 second-! eet, Is continuous and ! a lrly constant. 

Rattng table s , wa ter year 1940- 41 (gage be1ght, 1o teet, and dlacba.rge, 1n second-teet) 

Oct. 1 to Jan. 27 Jan. 28 to Sept. 30 

3 .6 71 8.6 851 15. 6 5,210 4.8 163 e.6 1,020 4.4 115 9.8 1, 260 16.2 6, 640 5.4 234 10 .5 1 , 660 

5 . 0 163 11 . 6 2,000 17.0 8,980 5.8 297 12.0 2, 240 

6.6 234 13 .1 2,780 19.2 17,300 6.6 476 13 . 1 2 ,780 

6 .2 330 14 . 2 3,500 Note-.- Same as preceding 

7 .6 601 15.0 4,280 tali'Ie"i'boTe 13.1 teet. 

Discharge , in second-teet, water year October 194.0 to September 194~ 

Da Oot. Nov . Dec . Jan. Feb. M:a r . Apr . llay June July Aug . Sept . 

1 H5 97 9. 480 2,290 1,290 1 , 070 1,820 704 3,660 1,870 2,500 204 2 136 290 7,080 3, 460 1, 400 1,160 1 , 600 782 3,110 1~670 2,140 434 

3 126 469 5 ,580 4,730 1 . 780 1, 240 1,090 827 3 , 460 2 ,200 1,820 1 , 350 

4 116 564 4, 410 4,080 1,630 1,290 782 796 3,660 2,770 1;570 1,360 

5 108 380 3,570 3,360 1,620 1,300 615 1 , 160 4,010 3,680 1,460 861 

6 102 181 2 ,990 2,860 1,390 ~~ 280 575 :5,620 3,790 4,140 1,440 534 

7 . 98 140 2,690 2 , 470 1 , 260 1,200 508 4,180 :5,270 3,120 1 , 590 392 

8 94 123 2,820 2,120 1,200 998 454 6, 390 3,:560 5 ,630 1,470 342 

3 90 114 2,790 1, 780 1,110 743 402 12,000 :5,360 7.900 1,170 315 

10 88 184 2,560 1, 410 1 , 050 557 402 13,900 2,800 6,120 1,090 293 

11 86 330 2,210 1,090 1,020 481 386 10,700 2,680 4,620 9 41 274 

12 83 558 2,140 871 998 486 334 7 ,060 2,840 3,760 796 252 

13 82 673 5 , 610 745 975 570 268 4,910 2,610 :5,280 768 233 

14 eo 768 11 ,400 666 938 669 230 3,&10 2, 460 2,960 782 221 

15 79 895 10, 900 678 889 7:18 206 2 ,920 2,800 3, 090 718 222 

16 77 745 10,200 1.160 813 827 188 2 ,(40 3,360 2 , 590 653 237 

17 76 571 11.200 1,9&0 701 1,030 175 2 , 060 4,660 2,280 609 251 

18 76 5 40 10, 900 2 , 150 566 1 , 100 166 1 , 610 4,860 2 ,220 578 257 

19 76 558 8,310 1,800 464 1 ,100 158 1, 0 40 5,260 1 ,910 526 225 

20 74 586 6 , 150 1 , 220 418 1,680 158 612 4, 760 2,110 446 207 

21 7 4 631 4,670 1 , 020 486 2 ,630 157 409 :5,960 3,060 377 196 

22 7 4 673 3, 740 1 , 010 496 2,900 155 311 3,390 3,480 305 186 

23 73 705 3,140 1 , 080 486 2 , 680 169 258 2 ,910 3,560 283 182 

24 72 1,970 2, 720 1,230 604 2,090 492 229 2,270 4,140 266 372 

25 72 3, 680 2 ,360 1, 570 771 1, 580 346 207 1,910 4,340 252 838 

26 72 6 ,390 2 , 720 1,860 864 1 ,360 251 192 1,670 .,940 245 963 

;n 70 8 , 150 3,680 2 , 200 921 1 , 340 284 178 1 , 620 4,730 233 796 

28 7,0 13,900 3,770 2 , 160 986 1,400 381 186 2,540 4,580 221 466 

29 72 17,500 3,650 1 ,840 - 1. 540 488 652 2,640 3, 930 218 351 

30 71 13, 700 3,180 1,570 - 1 , 730 504 2 , 750 2,240 3,340 211 342 

31 7 4 - 2,520 1, 390 - 1,900 - 4,120 - 2,870 207 -

Month Second- Wa.ximua Miniaua lie an Runotr in foot-days acre-teet 

October ...... . ... . ......................... 2,684 145 70 86.6 5,320 

Noveaber ... . ... . . . .......•... . .. . .. . ....... 78 , 065 17,500 97 2,536 ~60,900 

December . . . ... . ..........•...... . •.. . . . . ... 159,040 11, 400 2 ,140 5,130 315, 500 

------- ------ ------ ------ ------ Calendar year 1940 ···· · ··· ·•· · ·· ········ 672,633 18,400 70 1,838 1 ,334, 000 

------- ------ ------ ------ -- ---- January .. . . ..................... . .. ...... .. . 57,820 4,730 666 1,865 114,700 

February ....... .... . .. . .......... o • •• •• ••• • 27 ,325 1 ,830 418 976 54 , 200 

March ... . . ... . . . . •....• . .•...... . •. . .... ... 40 , 649 2 ,900 481 1,311 80,630 

April .......•....•....•. . •.......•..•.... ·. 13, 7'" 1,820 155 458 27,260 

ll&y . ........•....•....•..•.......• . .•...... 90, 812 13,900 178 2,929 180,100 

June .......... . ..• . ... o ..................... 95, 890 5,250 1,620 3,196 190,200 

July ..... . .......•..•....•.. . .•..• . ..... .. . 110. 790 7 ,900 1, 670 3,574 219,700 

August ... . ....... ... ....................... 25,885 2 , 500 207 835 51,340 

September . ... . .. ... ... .. ... .. ... ........ ... 13,146 1,350 182 438 26,070 

Water yea r 1940-41 ... . .. . . ...... ..... ... 713 ,850 17,500 70 1,956 1,416, 000 
16 CALCASI E:IJ Rl VER BASIN 

Calcas!eu River near Kinder, La. 

8 rder lat 30°30'10', long. 92°64'55', !n NWtSEt sec . 30, T. 

L.ocat!on.- W~t~r--s~~sf~~ me r!d!an' at bridge on State Highway 7, 0.5 m!le downstream ~r~m'wl:iskey'Ch!tto creek and 4 mil es west or Kinde r . Datum or gage !e 12 .02 teet above mean sea level, datum or 1929 (Lou!e!ana Geodetic Survey bench mark; l evels by 

Corps ot Eng!neere, U.s . Army). 

Drainage area. - 1, 700 square m!lee. 

Recorda ava!lable .- Auguat 1922 to January 1925 , October l93S to September 1941. 

E:xtremes.- Maximum discharge during year1 _33 ,000 second-teet Nov . 27 (gage height, 20.32 

teet) • m!n!mum 444 second-teet Oct. ~ (gage height, 2.97 teet). 1922=25, 19:38-41: Maximum discharge, 68,000 second-teet Jan. 23, 1924 (gage height, 21 69 tee t datum then !n use), trom rat!!~$ curve extended above 401000 second-teet; 

m!n!mum, 200 second-teet Aug. 9, 10, 1924 (gage height, 0 .81 toot, aatum then !n use) . 

RemarkS.- Records good. Water used by paper m!ll at Elizabeth !s pumped from wells and 

----raur discha rged !nto M!ll creek about 36 m!les above station. Th!s discharge , estimated to be about 5 second-teet, !s continuous and ta!rly constant. D!vere!on t rom le tt bank or Calcas!eu River 5 m!lee above etat!on tor !rr!gat!on. 

Rat1n& ta'blt, water ,..ar letO·tl <s•a• heisht , 1n teet, and dhoharae, in ttoonc1·!ttt ~ 

(Tta'OOrary all itt Our1't uaed Oot. 1 to No 'f . 13) 

4. 0 &. 0 7 .0 10.0 

ege 1,0&0 

1,870 

3,270 

ll.& 

13. 0 u.o 

u.s 

4, 200 e,eoo 

e,g1o 

8,470 

1&.e 

1e. a 18.0 

20.1 

10,800 

1&, 000 20 , 400 31, 700 

Ditoharce . i n eecond-tltt , water year October lQ tO to September lG tl 

0&~ Oot . Nov . Deo . Jan . Fob . Mar . Apr . ll&j' June Ju l y AU& . Sept . 

l 708 ag3 22, eoo 8,&70 2,e30 2,130 2,880 1 ,180 1V , VOO &,300 k4, 270 &77 

2 eee kV,300 1e,800 7 , 100 2 ,730 2,0VO 2, 740 1,280 1&, &00 4,&70 k3, &80 1,020 

3 en k3, 2e0 12,000 &,880 3, 220 2,100 2,,:!0 1,330 13,300 4,2&0 3,200 1,&10 

4 eoo 3,e80 V,l30 6,880 3,&10 2,120 1,V70 1,370 11 ,200 k&,310 2,720 2,070 

& &80 3,700 7,&80 &,QOO 3,&30 2,110 1,700 kV,310 V,1&0 7,7VO 2,380 2,010 

6 eeo lr1, 8&0 &,060 &, 380 3, 280 2,110 1, 730 lr&,300 ke ,2&0 V,030 2, 240 1,820 

7 &60 1, 020 &,170 4, 7&0 2,V40 2,0VO 1 ,800 k13,800 &,&70 v. 4&0 2,&30 1,280 

8 &40 812 &,3&0 4,2&0 2,810 2,000 1,3VO 24,200 &, 730 8 ,380 2,veo 1,0&0 

9 &2& 7&4 e,210 3,840 2,700 2,080 l , 2&0 21,300 e , 220 7,7&0 2 , 7&0 vee 

10 &22 1,140 e,430 3,420 ,~o 2,010 1,1&0 20,800 e,e1o 8,330 2,&30 V78 

11 618 1, 7&0 &, 060 3,000 2,310 1,eeo 1,120 20 , 800 e,e20 ? ,ago 2,270 V78 

12 6U k3, 4&0 &, tQO 2,e20 2,uo ~0 1,0&0 

~ ,3 ~ 7,880 1, 840 V21 13 4V8 3,7&0 kV,V40 2.320 2,0,0 1,410 V76 8 ,2&0 8 ,380 2,010 Q28 

14 4V4 3,7VO k1Q, 400 2,1&0 1,veo 1, 4VO 87e ke,eoo 8,810 8,240 2,3&0 ago 

1& 4VO 3,8&0 2&, ~00 2,300 1,880 1,e80 830 1<~,070 V,420 8,110 2 ,1&0 830 

16 482 3 ,G40 2&,4:00 ¥3,340 1,800 1,880 7V2 1<~ 970 10,000 8 ,470 1,V20 1 , 220 17 474 k2,840 22,400 k4,V40 1, &VO 2,100 7&0 k3, 220 10,800 8 , 3e0 1,eeo 1 , 220 18 472 2,0&0 20,300 e,uo 1,&40 2, 420 7&V 2,860 11,400 a,oeo 1,370 1,070 19 488 1 ,830 18,000 &,830 1,UO 2,470 723 2,230 11,300 7 ,3&0 1 ,210 Ve3 20 488 1,&30 14,200 k4,UO 1, 3&0 -~. &70 73V 1,&30 10,200 k4 , 760 1, 070 81e 

21 tee 1o&10 V,V70 1<3, 2e0 1 , 470 k& ,7eo 720 1, 130 v , 420 4,2VO V&V 730 22 4e0 1,&20 7,670 2,Be0 1,Ve0 e , aeo 70V V47 8 ,4&0 4, 870 see eag 

23 468 1,eVO 8,230 2,700 2, 180 7 , 0VO 7&0 844 7 ,&80 &, eeo 823 708 24 '62 k3, V40 6,210 2,700 2,200 &,&80 Ve7 778 lr&,880 e,2eo aoe 1 , 880 2& 46& kV, OeO 4,430 3,040 2,210 6 , 770 1,280 730 k:4,830 7,220 784 ~.ooo 

26 466 k20 , 200 k6, 670 k4,020 2,280 1<4,040 1, 210 708 k3,VVO 8 , 110 723 3,180 27 448 31, 700 kS,680 4,880 2 ,320 k3, 040 1,310 &71 3,790 9,030 723 2, veo 28 He 28,VOO 10, 800 4,Be0 2,240 2,7VO 1,200 73& k5,220 Q, eeo 708 2,440 29 4&8 2&,800 10, 700 4,340 - 2,710 1, 110 kl, 840 6,V&O v, eoo 70V 1,7e0 30 466 2& ,900 V,V70 k3,~20 - 2,800 1 , 130 k:& , 780 6,840 8 , 200 e83 1, 310 31 47e - V,4&0 2, V70 - 2,870 - k13, 700 - k&, &VO eae - llonth S.oond- lllxiiiUII llinbu Moan Runott in toot-d&yo acre-teet 

~m~=~ : : : : :::: : ::::::: :::::::::::::::: ::: 16, 7VO 708 ue &OV H,320 200 , 23V 31, 700 7e4 e , &7& 3V7, 200 3&4,180 2&, 600 4,430 11,430 702,&00 

Calendar Jl&r 1V40 --- ---- ------ ------ -- -- -- ------ ····· ······ ·· ···· ····· 1. &80, &02 eo , aoo He 4,31V . 136,000 

[.:•::::::::::::::::::::: 

-- ----- ------ ------ ------ ---- -- 130 , no 8, &70 2,1&0 4,223 2&V, 700 e4,870 3,&30 1 ,3&0 2, 317 128,700 Vl, 380 7,0VO 1 , 410 2,948 181 ,200 37,840 2,880 70V 1, 2&1 7& , 0&0 1V6, 102 24 , 200 e71 ,~, 387,000 2&& , 290 19, VOO 3, 790 8 ,&10 &08, 400 227 , 0e0 9 , 860 4,260 7 , 326 4&0, 400 56 , 388 4,270 683 1, 787 10V, VOO 41,772 3,180 677 1 ,392 82, 880 

Water year 1V40- U ·········· ···· ········ 1 , &8V ,821 :51, 700 He 4,&76 3,312, 000 

k Com pu to d by uaing rate ot change of 1tage •• a taotor. 
CALCASlE:IJ RIVER BASIN 17 

Whiskey Chitto Creek near Oberlin, La . 

Location.- W!re-we !ght gage, lat . 30°41'55', long . 92°53 ' 35', !n NEtNEt sec. 20, T. 4 

S., R. 5 w., Lou!s!ana mer!d!an , at bridge on State Highway 52, 1 m!le downstream 

!rom Tenm!le Creek , 8 m1le6 upstream !rom Bundick Creek , and 10 m!lee northwest or Obe rlin. 

Ore!nage area .- 510 square m!les. 

Records available.- January 1939 to Septembe r 1941 . 

Extremes.- Maximum discharge during year, 16 , 300 second-teet May 7 (gage he!ght, 21.30 t ee t, !rom graph based on gage readings); m!n!mum, 199 second-teet Oc t. 23 (gage he!ght, 4 .63 tee t) . 1939-41 : Maximum discharge, 35,000 second-tee t Aug . 9, 1940 (gage height, 23 .42 

teet); m!n!mum observed, 102 s econd-tee t Sept . 19, 1939 (gage height ,. 3 .72 teet). 

Maximum stage known , about 25.7 t eet !n June 1886 , !rom !loodmar ka prese rved by local residents. 

Remarl<s .- Records !a!r. Gage read tw! ce da l l y . 

Ra t1ng tables, water year 1940-4~ (gage height, 1n teet, &Dd dlaeharge, to second- feet) 

Oct. 1 to Kar. 22 liar. 23 to Sept .. 30 

4.7 210 10.6 1 , 760 5. 1 274 15 .a 4,3eO e .o 425 13. 6 3,020 5 .1 452 17. 2 5,e30 7.2 e62 15.4 4, 060 7 . 1 677 16. 2 7,050 6 . 6 1 ,050 17 .0 5,410 e . 5 1 , 070 19 .2 9,030 Mote .. - S.-e ae rollowl.llg 10.5 1,830 20. 2 12,050 ta'5'!i'""'i'boTe 16 . 0 teet. u .o 3 , 350 

Discharge , in second-teet, water year October 1940 to September 1941 

0&1 Oct . Nov . Dec . Jan . Feb . Mar. Apr . lla¥ Juno Jul 1 Aug . Sopl. 

l 309 662 3,120 2,530 610 540 57e 3e5 5,770 1,480 7H 331 2 293 2,270 2,240 1,350 700 500 560 362 5,620 1 , 020 667 372 3 277 2, 470 1,640 l ,Oeo 794 475 547 346 4,490 2, 020 576 407 4 2e1 1, 770 1,240 9(2 954 461 672 356 3,150 3,220 536 4S6 5 25S 889 927 913 946 464 785 1,160 1 ,420 3,810 532 549 

6 2 42 57e 726 6&4 7e7 447 645 3,310 769 3 , 760 e97 464 7 24S 426 661 656 700 432 610 12,900 962 3,310 1, 240 3S7 8 252 3W 1,e70 83S 757 521 454 9,200 2 ,020 2,600 79S 266 9 234 290 2 ,130 811 773 664 42S 6,01l0 2,480 1,220 760 sse 10 234 494 l , 9QO 746 69S 597 411 4,550 2,480 SOil 731 362 

11 22e 652 l , 610 ee2 532 490 400 2,860 2 , S20 756 570 390 12 229 1,790 2 ,010 e 27 54S 457 37S l,OilO 3,660 1,030 805 4S2 13 22e 2,020 4,800 601 526 HS 367 747 3,960 1,670 1,490 944 

14 22e 2,130 8,-010 5Q9 502 SOil 35S 633 4,540 l , i40 1,110 367 15 224 2 ,160 9 ,060 726 490 644 351 567 4,240 2,220 7S2 331 

16 21S l,e20 6,920 1 , 460 485 633 34-4 514 3 , 810 2,7 ~0 ~ 356 17 21S en 5, 460 2 , 180 472 723 33S 474 3 , 820 2,620 45S 36Q 

18 216 544 4 , 250 l , Q20 45 4 7e2 334 HS 3,170 2 , 100 42S ug 

19 216 4QO 2 , 9 40 1 ,640 447 SlQ 331 42e 2 ,450 1, 240 409 390 

20 216 467 1,680 1,160 475 1,140 334 40Q 1 , 510 1,030 390 sse 

21 216 418 1 , 200 767 696 2.180 324 394 1,640 1,360 376 310 

22 208 628 1,010 eg6 Q24 2 ,340 341 376 1, 490 1,e40 365 292 

23 200 1,300 no 653 S78 2 . 330 394 360 1,420 2,220 361 271 

24 204 2 , 4QO 622 661 6S1 2,140 396 34S 1,710 3,020 367 524 

2C 204 4, 670 7e7 1 , 2SO e u 1, 610 534 334 1,660 3, 490 344 S26 

26 202 Q, 7SO l, 690 1, eeo 716 631 716 326 1 , 060 3,650 33S 867 

27 202 11,400 3,170 l, 720 718 726 642 317 l,lSO 4, 120 3~1 820 

28 204 7 ,730 3,680 l,3QO 601 705 us 331 l , Q50 3,740 366 642 

29 207 6,760 3,Sl0 S72 - 747 385 506 1,890 2, 760 3.S 436 

30 20S 4, 410 4,2410 710 - 666 3eO 2,140 1,650 1,570 332 380 

31 208 - 3,660 638 - 5QO - 6~ - 896 ~2Q - Second- .Ju•arre Runorr llontb too~aye llax!Joua Miniaua lie an 

aile Inches Acre-teet 

October ........... . ... . . .. ... . 7,086 309 200 229 o.u9 0.62 14,060 

Hove•ber ....... . ..... .. .... . . . 71, 50~ 11,400 2QO 2,387 4.6S 5.22 142, 000 

Deoeaber . ...... . ... ... .. . ... . . 66,le5 9,oeo 726 2 ,844 6.6S 6 .43 174,900 

------ - ----- ----- -- - -- - - - - - - -- ---- - - Calendar year lQ40 . . . . . . . . . '79, 3Q7 30,200 1Q4 1 , 310 2.67 34.9e 960 ,900 

------- --- -- - --- - -- - -- --- - - --- - - ---- January . . .. . ...... . . ... . . . . .. . 33,561 2 , 630 59Q 1 , 062 2 . 12 2.46 ee,550 

February . . . . . ....•. . ..... . .... lS, 485 954 H7 eeo 1.29 1.~6 SS , 6eO 

March . .. . ..... . ........... . ·.·. 28, 406 2 , 340 432 662 1.67 1.9 ~ 52,370 

April .. . .. . . . . • ..•. .. . , .. . .... 13,682 766 324 452 .sse .9Q 26,900 

lilly . ............ . . .. ..... . .... 5e, Q2S 12,900 ~17 1,838 ~.eo 4 . 16 112,900 

June ..... . . . .. . ..•.. . ...... . .. 7i, Oil 5,820 7e9 2 ,636 5.17 5.77 l 5e ,900 

July ...... . .. ....• . . . .•..... . . eg, 452 4 , 120 75S 2 ,240 4 . 3Q 5.06 137,800 

August ....... . .... ... ... . ..... 18, 082 l, 490 329 583 1. 14 1.32 35, S70 

Septeaber . ..... . .... . . . ... . . . . 13,736 H4 271 45S .896 1. 00 27,240 

Water year lQ40-U . ........ . 49e, 146 l2,QOO 200 1,36i 2 . 66 36 . 19 9S4 , 100 
18 CALCASIEU RIVER BASIN 

Buodtck Creek near Dry Creek, La. 

Locat i on .- W!re-wetght gage , lat. 30°40 ' 55" , long . 93°02'15', !n sec. 25 , T. 4 s. , R. 

I w., Loulst ana merJcllan, at bridge on State Highway 251 , 1 m!le northeast or Dry Cr eek and 8 miles upstream from Whiskey Chitto Creek . 

Drainage area.- 238 square mlles. 

Records ava!lable .- January 1939 to September 1941. 

Extremes. - Maximum discharge duri ng year, 11 , 600 second-feet Nov. 26 (gage height , 24.41 t ee t , from graph based on gage readings); m!n!mum , 75 second-feet Oct. 24-26 (gage height, 10.31 f eet) . 

1939-41: Maximum discharge, 22,000 ~econd feet Aug. 10 , 1940 (gage height, 26 .28 

feet , f rom high-water mark); mln!mum, 49 second-teet on many days !n Septembe r and 

Oct obe r 1939; ml n!mum gage height, 9 .69 t eet Sept. 24 , 25, 1939. 

Remarks.- Records !a! r. Gage r ead tw! ce dally. 

Ra t ing table. water yea r 1940- 41 (gage helgbt , ln t eet, and dlleharge, 1n second-te et) 

10. 4 ~ 18.6 1 , 290 22.0 4,220 11.2 155 19.6 1 , 620 23.0 6,750 12 . 0 262 20 .4 2 .050 24.0 10, 000 13.6 458 20 .9 2 . 460 17 .o 980 21. 4 3 , 130 

Disoba.rge , in second-teet , water year Oc tober 1940 to September 1941 

DOol Oct. Nov . Dec. Jan . Feb . Ma r . Apr . lle.y Juno July Aug . Sept . 

1 100 1,090 1 , 100 1,020 262 267 252 121 3 , 980 n6 215 199 2 9 4 1 ,300 624 545 308 234 238 123 2 ,380 522 184 116 3 90 1,580 584 462 497 215 232 123 1 , 880 568 168 118 4 88 1, 510 510 455 506 204 229 120 1. 240 1 , 360 155 155 5 85 560 408 429 443 194 262 967 435 1 , 560 153 &220 

6 84 220 366 432 375 190 247 8 , 620 306 1 ,360 242 a200 

7 85 171 547 439 378 203 237 6 , 150 298 1 , 140 334 al90 

8 81 147 1 , 060 424 383 397 194 3 ,350 761 732 564 a lSO 

9 8 1 135 1 , 080 389 3 49 485 167 2 ,210 969 337 606 a l70 

10 81 250 1 , 090 360 312 374 153 1,680 1 , 130 310 490 &160 

11 81 921 1, 0 40 343 275 286 14 4 853 1 , 630 345 334 156 12 78 9 45 1,190 307 244 230 139 332 2 , 000 1 , 030 240 168 

13 78 951 3, 230 287 229 247 133 260 2 , 850 1 , 440 200 184 14 7e • •e 5 , !UO 302 219 270 12S 225 2, 620 1 , 760 312 160 

15 78 1,000 4, 290 506 211 299 126 198 1 , 9 40 2,060 540 124 

16 78 608 2 , 790 1,160 t03 337 !23 178 1 , 610 2 , 220 381 122 

17 78 277 2, llO 1,160 194 428 121 161 2 , 130 1 , 930 192 131 

18 77 219 1 , 610 1,000 185 391 118 151 2 , 260 1 , 510 158 148 

19 76 194 961 776 181 341 118 141 1 , 920 900 143 140 

20 78 181 563 508 238 7 44 118 136 1,540 558 133 123 

21 77 173 461 376 482 1,220 116 130 1,220 410 116 111 

22 76 287 408 324 5 40 1,210 120 126 1,120 570 117 107 

23 76 406 375 365 458 1, 260 126 123 738 6 44 121 a105 

24 75 2, 000 350 444 398 1 , 280 139 120 8~9 770 118 a200 

25 75 6, 750 ~30 524 419 998 160 116 878 766 113 a 450 

26 76 10 , 100 1.060 712 406 460 207 ll2 6 44 596 115 a540 

27 76 

I 1 ,590 728 355 353 232 109 530 536 120 503 

2& 76 1 ,640 512 310 347 188 123 785 539 120 468 

29 8 3 2, 270 1,760 370 - ~47 137 444 902 426 118 317 

30 85 1, 770 1,870 309 - 315 124 560 966 3 41 1 14 192 

31 196 1 , 640 277 - 280 - 7,010 - 262 111 - Second- Per Runorr Month toot-days Maximum Mi nimum lloan square 

mile Inches Ac re-teet 

October . ... . .. .. ···· ·· ·· ·· .. . 2,620 196 75 8 4.5 0 .355 0 .41 5 , 200 

Nove•ber . . . ....... ... .... ... .. 46,263 10 , 100 135 1 , 542 5 .4S 7 .23 91 , 760 

December ... . .. .. ..... ... ... . .. 41.947 5,~10 330 1 , 353 5 . 68 6.55 8 3,200 

- ------ ----- ----- ----- ---- ---- ------ Calendar year 1940 .... ... .. 247 ,400 17 , 700 66 676 2 . 8 4 38.65 490,700 

------- ----- ----- ----- ---- --- ----- January . . .. ... ..... . ···· ···· · 16, 245 1 , 160 277 524 2 . 20 2 . 54 32,220 

February .. ... ...... ... ....... . 9 , 360 5 40 181 334 1. 40 1. 46 18, 570 

March . . ... . ... ....... .. .. 14, 406 1 , 280 190 465 1.95 2.25 28. 570 

April .... . .. . . ······ ..... ..... 5 , 028 262 116 168 .706 .79 9 , 970 

May . .. .. . . . . . ..• ..•..•.. , . ••.. 38, 072 620 109 1 , 228 5 . 16 5 . 95 75 , 510 

June .... . . . . . . . . . . . . . . ····•·· · 42 , 401 3 , 980 298 1, 413 5 . 9 4 6 . 63 8 4, 100 

July .. . .. ... ···· ······ ·· ·· ·· ·· 28 ,418 2 , 220 262 917 3 . 85 4 . 44 56 , 370 

August ... ··· ·· ·· ·· . . . . . . . . ... . 7,027 606 111 227 .954 1 . 10 13, 9 40 

September . .. . . .. . . . . .. . .. . . . . . 6 ,145 540 105 205 . S61 . 96 12, 190 

Water year 1940-41 . . .. .. . ... 257 ,932 10, 100 75 707 2 .97 40 .31 511, 600 

a No gage-height record; dheharge computed on bash of r ecords ror nearby stations . 
SABINE: RI VE:R BASIN 19 

Sabine River near Mineola , Tex. 

Location.- Water-stage recorder, lat. 32°36 ' 45", long . 95°29 ' 10", at bridge on u. s. R!gnway 69, 3.2 m!les south of Mineola , Wood County , 4 . 5 m!les ups ream from bridge 

of International-Great Northe rn Railroad, and 16 . 5 m!les upstream from Lake Fork of Sabine Rive r. Datum or gage is 304 .2 feet above mean sea level , datum of 1929 . 

Drainage a r ea .- 1,445 square m!les. 

Reco rds available.- May 1939 to September 1941. 

E:xtre~~;;-m~;~'":' ~~ c~:~~d~ b~~o~~~ 22~6 900 second-feet June 14 (gage height , 18.59 

1939-41: Maximum discharge, that or June 14, 1941; no flow at times. 

Maximum stage since about 1919, 20 .6 feet on Jan. 25, 1938, according t o in!orma- t i on furnished by local resident . 

Remarks .- Records fa! r except those for pe ri ods or no gage-helght record, which are poor. 

-----y;ro-rarge d i versi ons above sta ti on. 

Discharge , in second-teet. water yea r October 19 40 to September 19 41 

Da.! Oct . Nov . Dec . Jan . Feb . War . Apr . Way June July Aug. Sept . 

1 <-E 66 aS, 200 6 ,640 238 2 ol70 261 4, 260 22 1, 470 13 1 , 040 

2 M 460 a4, 420 4o 810 753 2 o230 320 3,630 62 1,000 11 466 3 2o 216 3o690 3,470 1,360 2 , 230 414 3,:580 195 716 8.6 139 4 1.9 111 2 ,340 82o 220 lo600 2 o060 521 4,460 488 1,150 7.6 66 

5 1.7 66 1,250 •1,300 1,800 l , 460 400 9,780 796 1,090 6 .9 33 

6 l.l 40 634 a686 2,060 940 217 8 , 660 1,100 904 6 . 1 22 7 1.6 29 209 8 492 2,630 l, 690 183 7o080 2 , 690 704 5.3 16 

8 1. 161 135 290 2,860 2 , 630 2?0 7 , 5 40 4,520 386 5.3 12 

9 1. ?56 111 203 2,120 3,240 340 11, ?00 5,330 160 5.5 •10 

10 1. 904 • 93 169 1,1:50 6,480 548 10,900 4,810 81 5 . 9 9.8 

11 1.1 93 144 460 8 , 030 ?60 8,580 4,520 68 7o3 9o5 

12 1. 144 129 191 5,540 ?28 6,200 5 , 540 63 6o1 8.6 

13 l.C 269 123 136 4 , 030 402 4o360 8 , 500 90 5.3 8 .0 

14 l.C 606 241 114 2,660 180 2,800 15, 800 136 11 ?o8 

15 1. 1 , 140 461 96 1 , 420 114 1,720 14.,500 262 1? ? .3 

16 1.( a860 1,760 43? 81 652 206 686 12,100 69 4 13 6o3 

17 

: ~ 2 , 420 381 ? 4 362 3?0 313 9 , 300 850 9 o8 5o3 

18 3,800 381 ?0 225 216 126 7 , 080 1, 000 ?o3 4 .3 

19 :f 8,710 310 68 166 162 81 6 ,480 1,040 So? 3.6 

20 9o 060 207 1?4 144 1?2 64 6 , 110 980 4. 1 2 .8 

21 

+··j 

6,630 155 393 138 156 54 5,330 674 3. 0 2o 4 

22 4,810 126 461 129 11°1 4? 4,380 43? 180 2.1 

23 3o350 111 530 396 190 96 3 , 0 40 5 45 346 2.0 

24 1 o920 99 1 , 210 96? 664 361 1,?30 545 146 305 

25 9?0 90 1,720 1.090 l o140 388 ?58 292 68 59? 

26 1 , 820 200 1 o950 l ol60 l o5?0 199 226 118 500 473 

2'1 3o 690 680 2 , 1?0 1.140 l o960 86 3?6 ?6 1,070 225 

28 4, Q70 850 2 ,1?0 8?6 2 o?80 50 3 , 830 49 1, 560 88 

29 26l . E 5o? ~ 868 4n 4 , 380 3? 3 , 020 31 1,950 52 

30 ~:~~ 600 290 4,810 29 2, 050 23 2 , 060 35 

31 ?84 336 212 26 18 1 , 670 

Month Second- MaxiiDWD MinimWD Moan Runott in foot~ays acre-feet 

October . .. . . .... . ... . ........ . ......•.. .... 1,068.9 784 o. 4 3 4.5 2ol20 

November . .. .. . ...........•................. 52,454 29 1 , ?48 104,000 

December( . . . . ...........• o o. o . . o .. o . • ...... 99,254 9,?80 93 3,20 2 196.,900 

--- -- -- Calendar year 19-40 .. ...... .... ... ... 318,169 . 7 9,780 0 869 631 ,100 

------- January . ............ . ..... . ....• .. .... .. ... 2?,311 6,640 90 881 54,170 

February . .........•.. . ....•.... . ..•..... . ... 28,6V8 2, 860 68 1, 021 56,720 

llaroh .............. . .. . ..... . ....... . ...... 56, 238 8-,030 129 1,782 109,600 

April . . . ..... . , .. 0 • •••••• o .. , .. . . . .. o ..... . 24 , 540 4,810 114 818 48,670 

Way ... ............... . ... . .... . ..... . ...... 97,894 11,700 26 3, 158 194,200 

June . .. , .................•.. . ..... .. •..... . 134,6~ 15,800 22 4,489 26? ,100 

July ... . . .... . ••. o . . • .. o . . o . •. .•. o . . o •..... 15,541 1,470 18 601 30 , 830 

August . . ............ . ..... .. .... . .. . • . .... . 9, 704.6 2,060 3.0 313 19,250 

Septe11ber ....... . ........ . , ..... .. . .. ... . .. 3,638. 7 1,040 2.0 121 ?,220 

Water year 1940- 41 ... ............. 64V ,926o 2 15 , 800 o4 1, 507 1,091,000 

• lfo s•se-hei&ht recordJ d h cbarge computed on baah ot recorde tor nearby atatlone and • ·eatber recorde . 
20 SABINE RIVER BASIN 

Sabine River near- Gladewate r, Tex. 

Location.- Water-stage recorder, lat. 32°32 ', long. 94°57 ', at b rtdge on U. s. Highway 211 , halt a mile downstream rrom Glade Creek and 1 mile southwest or Gladewate r, Gregg County. Datum or gage Ia 243 .85 teet above mean sea level (Texas Reclamation 

Department bench mark). 

Drainage area.- 2, 846 square miles . 

Records available.- Oc tober 1932 to September 1941. 

Extremes.- Maximum discharge during year, 21 ,000 second-teet June 19 (gage height, 34.75 

teet); mi n imum, 34 second-teet Oct. 26. 

1932--41 : Maximum discharge , 40 , 600 second-teet Jan . 28 , 1938 (gage height, 38.34 

teet); minimum, 5 .6 second-tee t Aug. 16 , 1939. 

Maximum discharge !mown, 48,500 second-teet In January 1932 (gage height, 39.4 teet rrom tloOdmarks), !rom retlng curve extended above 40 ,000 second-teet. 

Rema rks .- Records talr. Small dive rsi ons above station t or oil tleld operations and --;m:;:nnHpal supply. 

Oieoharce. in second-teet. water year October 1V40 to Septeaber lVU 

Dll.ll Oct . Nov. Dec . Jan . Fob . Mar. Apr . llay Juno July Au c. Sept . 

1 15e 1,020 7,UO 8,240 1,870 S,460 2,080 3,3VO SO& 8,010 214 1,840 

2 124 1,460 a,aoo 10,400 2,060 S,680 1,680 S,900 4&& 6,&&0 ale& 1,980 

3 98 1,&60 9,890 14,000 2,030 3,830 2,SS0 4,380 711 e,soo al63 1,8VO 

4 83 1,480 10,600 14,900 2,0&0 3,070 4,180 4,BSO 810 4 1 'tVO al46 l,S90 

5 72 1 , 190 10,400 14,000 2,280 4,080 3.,V30 6,170 880 4,140 alM 89& 

6 67 830 9,7&0 ll,M)O 2,&10 4,300 3,330 6,&60 890 3,320 al27 31& 

7 84 640 9,300 9,210 2,760 6,040 3.,080 6,140 1,730 2,610 al20 204 

ll 73 360 8,660 8 ,000 3,020 6, ·4-40 2,820 6,360 3,3VO 1,870 al19 183 

9 se 3&1 7,680 6,970 S,360 6 ,480 2..,400 6,730 3,930 1,3ol0 a129 193 

10 88 734 6,730 6,740 3,690 6,440 1,920 7,320 4,680 972 al61 207 

11 81 1,190 6 ,74.0 4,380 S,970 6,620 1,680 a,ooo &,&70 692 •1.49 202 

12 67 1,480 4,640 2,840 4 , 150 5,790 1,830 a,aao 5,920 994 141 183 

13 65 1, 560 3,520 1, 870 3 ,690 6 ,320 1,ezo 10,000 !6,270 1,390 124 1&4 

14 51 1,630 2,680 1,340 2 ,860 7,270 1,eeo 11,600 !6,640 1,&10 168 141 

15 48 1,480 2,480 1,100 1,690 8,480 1,4ZO 11,800 !7 ,070 1,460 306 1M 

16 .. 1 ,460 S,300 1,100 972 9,210 1,040 11,000 7,880 1 ,390 270 130 

17 43 1,430 Z,890 1, 1&0 873 ; ,rno 810 0,890 lO ,ZOO 1,480 1QR 12& 

18 42 1,380 S,660 1 , 130 597 8 ,720 790 9,040 18,900 1,&eo 1M 118 

19 41 1,190 3,720 1,080 &78 7,790 890 8 ,160 20,800 1,630 129 103 

20 39 870 3,830 994 711 8,880 890 7,170 20 ,200 1 , 790 112 9& 

21 39 559 4,080 950 810 6,420 770 6,080 18,200 1,980 100 87 22 38 502 4,660 890 994 3,800 7SO 4,420 15,600 2,120 1,120 80 23 38 1,720 6,620 8&0 1,340 2,700 84S 2 ,670 1Z,200 2,120 2,510 78 

24 S8 4,480 6,S20 790 2,000 2,510 1,040 1,070 11,&00 1,820 1 , 380 222 

25 S6 6,670 6,970 730 2,&10 2,340 1,050 474 9,890 1,340 1,270 50~ 

26 34 6,010 7,380 750 2,840 2,370 1,390 502 8,960 1,040 890 905 

27 3& 6,180 8 ,640 790 3,080 2,610 1,690 730 8 ,180 770 &02 1,680 

28 53 6,2ZO 8 ,720 8&0 3,260 2,680 1,980 602 7,790 621 83& 1,760 

29 104 6,360 B, S20 1,100 - 2,790 2,340 398 7,070 388 972 1,360 

so 87 6 ,680 7 ,930 1,430 - 2,7SO 2,790 342 6 ,460 306 1,310 770 

31 249 - 7,660 1,710 - 2 ,560 - 324 - 252 1,6so - llonth Second- Maxia:tWI Minimum lie an Runott in toot-day a aore-teet 

October .. .......... .... .. .. .... .... .... .... 2,147 249 34 69 .3 4,260 Woveaber ........... ···· ··· ··•·· ············ 67,366 6,680 3&1 2 , 24e 133,600 Deceaber .. . ........ .. ....... ~ .. .... ........ 202 ,600 10,600 2 ,480 6 , 632 401,700 

-- ----- ------ ------ ------ ------ Calendar year 1940 ... ...... .. ... .... .... 577,190 10,600 24 1,67? l,l46,oo0 

------- ------ ------ ------ - - - - -- January . . . . ... ............ . . . ..... .. •...... 130, 684 14,900 7SO 4,212 259 ,000 February . .. . . . .. . ... . ... .. ........ . . . . .. . . . 62,046 4,150 578 2,215 123,100 March . .. . . . . . .. ..•..........•.... . . . •.... . . 152,100 9,210 2,340 4,908 301,700 April .. . .... .. .......... .. ... . . . . . ........ . 54,513 4,180 7SO 1,817 108,100 

llay . ... . .. .. .. ........................... . . 166,732 11,800 524 6,378 330, 700 June .. . . . . . . .....•...... . • .. . .... .. .• . ..... 231 ,822 20,600 308 7,727 4&9 ,.800 

July .. . . ... .. . . ..•.. . ....•..•....•.. • .. . ... 62 ,466 6,010 252 2,011S 123,900 August ... ... .. . ... .. . .......•...... . . . ..... 16,762 2,610 100 508 31,260 

September . . . .................. . . . . . . . . . . . . . 17,604 1,980 78 &BV 34,920 

Water year 1940-41 ....... .. ..... ...... .. 1,166, 640 20,600 34 3,194 2,312,000 

a lfo gage-height record; dilcbarge computed on balh ot recorded range 1n 1tege and weather reoorda. t ?re.gmentary gage-height reeordJ dhcharge computed trom partly eet1mated gage be1ght . 
SABINE RIVER BABIN 21 

Sabine River near Tatum , Tex. 

Locati on.- Wi re-we ight gage 1 l at . 32°22', l ong. 94°28' , on bridge on State High~ 43 

5 mlles upstream !rom Po1:ter Creek, 5. 2 miles no rtheast or Tatum, Rusk Coun ty, and ' ? 

m1les downst ream !rom Cherokee Bayou . Da tum or gage Is 204.2 tee~ above mean sea level, datum or 1929, (leve ls by Corps or Engineers , u. s . Army ) . 

Dra inage area .- 3 , 586 square miles. 

Re cords availabl e .- January 1939 to Septembe r 1941. 

Extremes .- Max imum discharge observed duri ng year, 13 , 800 second-tee t Nov . 25 (gage hei ght, 25 .65 teet); minimum observed , 46 second- teet Oct. 2?- 30 . 1939-41: Maximum discharge, t hat or Nov. 25, 1940 ; mi nimum observed , 9. 1 second- teet Oct. 9, 1939. 

Maximum stage known , about 32 t eet In May 1884, acco rd ing to Informati on rumlshed 

by l ocal residen ts. 

Rema r ks.- Records good . Oage read twi ce daily and oftener during high wate r. Seve ral 

--siiiiiTI d i ve rsions above station t or oil !leld opera t i ons and mun ici pal supply. 

Di eohar&e ia eeoond-teet wate r year Ootober 1940 to September 1941 

D&J Oot . Nov . Dec . Jan . Pob . Mar . Apr . Yay Juno J uly Auc . Sept . 

1 e42 &&5 S~10 10,700 2,220 4,1&0 ~.5~0 2,_92:0 715 10,SOO 500 1,? 30 

2 ~77 1,310 7,~50 11,000 2,920 4, 0 50 3,270 :5,270 590 10,700 478 l,S10 3 41~ 1,660 6 ,990 11,000 3,580 4, 060 3,630 :5,470 928 ,6~0 7 l ,S10 4 179 1,620 6,7;0 10,soo ~,&SO 4,100 5,&80 ~.840 1,280 8,-660 ~&2 1,730 

5 144 1 ,&80 5,790 10,~00 3,420 4,1&0 &,980 4,:570 1,2&0 7 ,4:50 ~45 1,040 

6 12~ 1,&80 6,990 10,&00 ~.~eo 4,370 &,920 5,620 1,220 7,270 ~~0 955 7 119 1,250 8,~70 10,&00 ~.270 &,850 a,~o 5r790 1,770 8,460 ~28 715 8 12~ 928 9,850 10,800 &,270 6,480 6,180 7 ,760 2,8:50 5 ,890 ~80 479 9 152 555 10,&00 11,000 :5,320 8,700 4,e40 8,100 :5,420 4,890 823 282 10 1~9 590 11,ooo 11,200 . :5,470 6,990 4,100 7,880 8,990 ~,120 32~ 2~8 

11 119 S20 11,000 10,900 :5,680 5,eeo 3,~ 0 ,~0 &,1&0 2,0&0 S&B 1132 12 10e 1,190 10,900 10,40 0 :5,840 8,&40 2,eso 7..,~0 6,410 1,9&0 ~02 238 13 92 1 ,440 10,700 9 , 970 &,990 8 ,180 2,180 8,990 &,410 2,seo 896 252 14 72 1,680 10,!00 g,1&0 4.100 6,980 2,100 e,920 &,410 2,680 281 2~2 

1~ 80 1,660 g,7&0 7 ,870 S,940 e,geo 2,100 5,g9o 6,830 2,.&40 274 2~2 

16 8& 1,&10 g ,g70 &,790 !,830 6,980 l,DSO 7,200 5,280 2,&40 404 2S1 17 89 1,480 9 , 260 6 ,!00 2,400 &,160 1,770 7,&10 6,6SO 2,140 404 ~15 

18 71 1 ,440 8 , &&0 s ,ggo 1 ,680 8 ,630 1,220 7,g2o e,eeo 8,0&0 868 288 19 &4 1,440 7 , 670 2,920 1,380 e ,720 ,~&0 8,280 5 ,790 1,0:50 568 ~ 

20 64 1 , 360 5 ,720 2,140 1 ,7SO 7 ,200 l ,«O 8,eeo 7 ,060 1 ,9SO 577 149 

21 && 1,160 6 ,220 2,140 2 ,220 7 ,690 1,680 8,7&0 7 ,7&0 1,g7o &86 1go 

22 && 1 ,200 &,800 1 ,8&0 ,~eo ,8~0 1,440 8,e&O 8,8&0 2,060 &8e 22& 

23 52 7 ,140 &,020 1 1 '7SO e,•oo 8 ,010 1 ,680 8,&70 g,970 2 ,180 805 21l& 

24 &8 11,goo 4,g10 ~~70 &,170 7 ,920 2,010 7,8SO 10,goo 2,220 1,500 ~46 

2~ 48 1&,&00 4,910 ~,2 0 3,840 7 ,200 2,460 6 ,160 11,800 2,060 2 ,&80 820 

26 48 18,100 &,&80 3,170 4,100 5 ,220 2,220 4,g10 12,100 1,8gO 2,460 1,220 

27 47 11,000 7, 8 50 ,6~0 ,,.260 e,soo 2 ,0&0 2,270 12,200 1,550 1,770 1,2&0 

28 45 10,200 8,280 ,~60 4,2eO 4,570 2,140 1,220 18,100 1,280 1,040 1,2&0 

29 46 9 ,,460 g,no 1 ,970 - 3,7&0 2,&60 1 ,040 11,800 gee 1,040 1,280 

30 46 8,660 10,400 1,860 - ~, 30 2,&40 goo 11,&00 7&8 1,660 1,280 

31 lgO - 10,300 8,010 - ~,&SO - 7&8 - e18 1,660 - Yontb Second- MUiiiUII Y1n1aua You Runott in toot-day a acre-teet 

October . . ... . • , . . , . . . ... . ....•..• , ..... , ., . s,g18 e42 46 186 7,rno Noveabe r . . ............ . . . .. .... . . . . .. . .. . .. 111,~40 1~,&00 &56 8,786 221,500 Decembe r ....... . ..... . ..• . .........•....... 8&5,680 11,000 4,g10 8,teo &09,100 

-- ----- --- -- - ---- -- -- ---- ----- - Calendar year 19'0 ········ ·· ········ ···· 719,664 1~,&00 46 l,O&a 1,4.27,000 

----- -- --- -- - ------ ------ -- --- - January ...... . . ....... . ......•..•.......... 208,880 11,800 1,730 5,&4& 402,400 

February . ...... . •.... • ..• . . . . . .. • ..• . · · ···· 89,~40 4,eeo 1,380 S,1g1 177,200 March . . . . .. . . • . .•....•..•..•.. . ....•..... . . 179,g00 8,010 !,&SO e,so~ &6e,800 

April .. . ... . . .. .•..... . . • . .• . . . .. . . . ..... .. 87,870 e,g8o 1,220 2,ggg 174,500 

llay . .......•. . . . •.... . .. . . . • ...... . . . . .... . 179,648 8,7&0 7e8 6,'796 &&5,500 Ju.ne . . ..... . ....•.... , ..• .. . .. . . ... .. . ..... 185,Q14 12,200 ego e,no ~70,700 

July . . . ...... . .. •. .•.. . . . .....•. . . .. .. . . . . . 1U,048 10,800 e18 3,679 226,800 AUIU8l . ••.... . •... . ..... . ..•. . • . . , . . .. .. ... 82,470 2,&80 874 79& 44,&70 

Sophabor . . . . ..... . .... . . . ....•..• . ... . .... 21,217 1,810 14g 707 42,080 

Wator yoar 1g40-41 ...... ... ............. 1,4&e,61g 15,600 46 ~,991 2,889,000 
22 SABINE RIVER BASIN 

Sabine River at Loganspo rt, La . 

Location.- Wire-weight gage , lat. 31°58' , long . 94°00 , on bridge on U. S. Highway 84, 

200 t eet upstream !rom Texas & New Orleans (Southern Pacl!lc) Railroad bridge In 

Loganspor , De Sota Pa rish, and 3 miles upstream !rom Bayou Castor. Prior to feb. 15, chain gage at site 200 teet downstream and to same datum. Datum o r gage Is 147 .72 reet above mean sea level , datum or 1929 . 

Drainage area.- 4 ,858 square miles. 

Records available .- July 1903 to September 1941 (January 1907 to September 1923, monthly recoras only , publ ished In Water-Supply Paper 850). U. S. weather Bureau has 

collected gage-height records In thiS vi cinity since 1903 . 

Average d ischarge .- 35 years ( 1903-19, 1922-41) , 2 ,879 second-teet . 

Extremes.- Maximum discharge during year, 38,800 second-feet Nov. 27 (gage height, 35.91 teet , from graph based on gage readings) ; minimum observed, 87 second-teet Oct. 30, 31. 

1903-4 1 : Maximum discharge observed, 47,000 second-!set May 5 , 1915 (gage he ight, 36 .9 teet); minimum observed during periods or dally records, 1903-6, 1923-41 , 16 

second-teet Sept. 26-28, Oct. 3, 4, 1939. 

Maximum s tage 1<nown , 39 .4 feet, present datum, sometime In May 1884. 

Remarks.- Records good except thos e ror periods or backwater, v.hlch a re poor. Gage read 

----cwiCe dally . Small diversions above station . 

Cooperation .- Gage-height record collec ted In coope ration with the U. S . Weather Bureau . 

Discharge, in Becond-teet. water year October 1940 lo September 194.1 

Day Oct . Nov . Dac . Jan. Feb. War . Apr . Yay June July Aug . Sept. 

1 640 126 26 , 000 21 , 800 4 , 410 8 , 990 7 , 220 2 , 770 ,7~0 11 , 800 1 , 050 1 ,000 

2 828 H 4 22 , 300 21 , 800 4 , 000 8 , 780 6 , 280 3 , 0 30 1 , 840 12 , 300 872 1 , 190 

3 762 547 19,400 22,300 4 , 850 8 ,420 6 , 060 650 1 , 400 12 , 500 740 1 , 450 

4 580 1 , 260 17, 400 2~ 400 5,510 ? , 820 6 , 060 c'4 , 250 1 , 270 al2 , 500 680 1 , 660 

5 44 6 1 , 690 15,400 22 ~00 5,84.0 ? , 040 6 , 120 c5 , 4.60 1 , 290 al2 , 600 620 1 , 8 40 

6 ~28 1, 760 14 , 000 20 , 500 6,060 6,560 6 , 440 c6 , 800 1 , 510 al2 , 500 560 1,900 

7 272 1,690 12 , 900 18 , 800 6 , 060 7 ' 460 6 , 980 c8,660 o1 , 870 12,300 540 1 , 750 

8 208 1 , 54:0 12,500 17,200 5,950 8,660 7 ,460 c10, 800 c4 , 410 11 , 800 580 1,400 

9 184 1 , 350 12,400 15,800 5,510 9 , 700 7 , 760 11 , 800 c7 , 160 11 , 200 540 1 , 000 

10 164 1 , 170 12 ,500 14., 600 5 , 070 11 , 000 7 , 820 12 , 500 c8 , 600 10 , 500 500 740 

11 164 982 12 , 900 1~ . 700 6~0 12 ~00 7,580 1~,100 c9 , 060 9 , 610 482 580 

12 164 9~ 14, 200 1:5 ,100 4,4-10 12,800 6 , 980 1:5 , 200 c8 , 720 8 , 660 482 600 

13 16 4 1 , 140 15 , 600 12 , 600 4,300 12,700 5 , 950 12 , 900 c8 , 540 c7 ,100 464 482 

14 154 1 ,4 50 16 , WO 12 , 500 ~oo 12,~00 4,6~0 12, 600 e8 , 480 e5 , 290 446 464 

15 144 1 , 690 1'7 , 200 12 , 500 4 , 300 11,500 ~60 11 , 800 c8 , 990 c4 , 150 ~92 446 

16 136 1,. 7~0 18 , 200 12 , &00 4,3&0 10 , 600 2 , 770 11 , 100 10 ,700 e4 ~00 ~60 ~92 

17 126 1 , 720 18 ,400 12 ,400 ~60 9 , 880 2 , 570 10 , 400 11 , 700 4.,460 ~44 ~60 

18 126 1, 690 18 , 200 12 , 200 4 ,100 9 , 200 2 , 410 9 , 700 12 , 500 4 , 150 ~44 ~28 

19 117 1 , 6M 17, 800 11 , 700 ~so 8 , 660 2 . 130 9 , 130 12,900 4 , 740 ~76 ~00 

20 117 1 , 600 17 , 000 11 , 000 e:5, 550 8 , 420 1 , 900 8 , 780 1~ 100 5 , 7:50 ~92 286 

21 117 1 , 540 16 , 500 9 , 880 c4 , 360 9 ,420 1 , 810 9 , 540 12 , 800 5 , 020 ~60 272 

22 109 e1 , 480 15 ,400 8 , 540 c5 , 46C 8 , 540 1 , 870 8,420 12 ,400 :5 , 760 ~l4 244 

23 109 c1 , 990 14 , 600 6 , 920 c6 , 660 8 , 540 1 , 930 8 , 360 11 , 700 2 , 690 ~00 244 

24 1 01 c5 , 320 1.3,300 4 , 300 7 , 820 8. 600 2 , 060 ~60 11 , 100 2 ,410 ~0 ~00 

25 101 c12 , 500 12,.200 4,100 8 ,420 8 , 660 2 , 450 8 , 420 10,600 2 , 370 762 48 0 

26 ~ o28 , 800 11 , 800 4 ,680 8 , 660 8 , '780 3 , 030 8 , 480 10 , 200 2 , 770 1 ,870 1 , 340 Z1 9 4 .:SS ,400 c l2 , -t00 5 , 510 8 , 780 8 , 920 210 8,4.80 10 , 200 7~0 2 , 290 2,170 28 9 4 36 , 800 el3 ,4.00 6 , 000 8 , 850 9, 060 .o ~o 8 , 420 11 , 100 ~0 2 , 020 2 , 490 

29 94 ~2 600 015 ,.100 6 , 340 8 , 990 2 , 770 o7 , 880 11 , 200 2 , 060 1 , 600 2 , 490 

30 9 4 28 ,400 c l 7,200 6 ,.220 8 , 720 2,-690 c6 , 680 11 , 500 1 , 5?0 1 , 240 2 , 450 

31 94 e 20 ,100 5 , 510 8, 180 4,680 1 , 270 1,000 

Month Second- Ma.x imua Mi nimWI Wean Runorr in t ool-days acre-teet 

October .. . . , . . . . .... . . ....... . . . 6 ,924 826 9 4 22~ 13,7~ 

No ve abe r . . . . . . . . . . . . 213 , 677 :SS , 400 126 12~ 423 , 800 De c ember . · · · ···· · ········· · ·· · · · · · · 492 , 500 26 , 000 11, 800 I 15, 890 9 76 , 000 - ----- - ------ ------ Calendar year 1940 . .... . .......... . . ... 1 , 314.,'178 •oo 94 3, 592 2 , 608, 000 

---- -- - ------ ------ January . . . . ... . .. ..... ...... ........... 390 , 700 23 , 600 4 , 100 12 , 600 774 , 900 February . . . . . . . . . ...... . ... .. . ...... .. . .. .. 16~.9 60 8,850 3 , 350 5 ,498 305 ,400 March . .. . .. .. .. • . . .. . . . . . . . . .. . .... . ... . ... 288 , 200 12 , 800 6 , 560 9 , 297 571 , 600 April. . . . .... ... . . .. •.. • ... . . •. . ..• . .•. . •. . 320 7 , 820 1 , 810 4 , 444 264 , 400 May .. . . . ... .• . .. . . .. .... . .•.. •. . . . • .. .. .•.. 268 , 950 13 , 200 2 , '7'70 8 . 6'76 5~~ 600 

June . . ... . .. . ... . ... . ... . . .... . ...... . .. . .. 249 ,470 1~ 100 1 .270 8 ,31 6 494 , 800 July . . ... .. ....•.. . . . ..• ..•. . . . . .. • • .. . . 20'7 , 360 12 , 600 1 , 270 6 , 6811 411 ,:500 August . .. .. . . . ... .. . 22 , 820 2 , 290 00 ~ 45 ,280 Septembe r . · · · · · · · ···· ···· ·· · · ··· ···· · · · · ·· · 30 , 548 2 , 490 2U 1,018 60 , 690 

Wate r year 1040-41 . . . . . ... . , . .. . 2 ,468, 419 38 ,400 9. 6 , 7:56 4,.8'76 ,000 

a No gage-he1gb.t r e cord ; dhoharge computed foll owing day• and wea t her record•• from graph baaed on gage hd g.ht1 t or pr eceding and 

c Backwat-e r f rom Bayou Ca1tor, 3 mi l e• d.OYa.1 t r e am; discha r ge computed on baeb dle ch&r ge mea sure- mente, recorda t or e t a t1ona near Tatum and 111lam, and. weather reeorde. 
SABI NE RI VER BASI N 23 

Sab ine Ri ve r near Milam, Tex . 

Loca t i on .- Wire-we ight gage , lat . 31°28 ', l ong . 93°45 ' , on bri dge on State Highway 21 , 6.5 miles northeas t or M4 lam, Sabine County , and 7 .2 miles upstream ! rom Palo Gaucho 

Bayou . Da tum of gage i s 97 .96 !eet _above mean sea level , datum of 1929 . 

Drainage a rea .- 5 ,543 s quare miles. 

Reco rds available. - January 1939 to Septembe r 1941. Oc t ober 1923 t o August 1925, a t Sabine t own, 7.4 :niles downstream, reco rds equi valent except dur ing pe riods or extreme low now and high runo!! ! rom Palo Gaucho Bayou . 

Extremes.- Max imum discharge obs e rved du r ing year, 54 , 200 second-teet Nov . 29 (gage he i ght, 44. 70 t ee t ); minimum obser ved, 126 second-teet Oct . 27, 28 . 1939-41 : Maximum d ischarge , that or Nov. 29 , 1940 ; min i mum obse rved , 32 second- t ee t Oc t. 15, 22 , 1939. Max imum stage known , 48 t eet about J uly 28, 1933 , according t o Info rma t i on furn ished by obse rve r . 

e"'g ~: ;.;~ ~~; ~~v~o~'ia t1~~~e read twi ce da lly and oftene r during high wate r . No la rge 

Rating t able, wa te r year 1940 -4..1 (gage he 1ght , in reet , and d1 acha.r ge, in second - teet ) 

6 .2 97 u.o :S , M O 39 . 0 26 , 100 6 . & 164 1 6 .0 4 , 710 40 .0 28 , 000 7 . 0 290 20 . 0 7 , 710 41 . 0 30 , 500 9 . 0 960 25 . 0 11 , 900 42 . 0 33 , 600 

10 . 0 1 , 350 30 . 0 16 , 200 43 . 0 38, 300 11 .0 1 , 780 35. 0 20 , 700 H. O 46 , 100 

12. 0 2 , 250 37 . 0 23 , 100 44 . 7 f)4 , 200 

Di s charge , in s econd-tea t . water yea r Oo toba r 1940 to ,September 1941 

DOJ Oct . Nov . Dec . Jan . Feb . War . Apr . llay J une July Aug . Sept . 

l 238 318 4'7 , 000 27 , 600 7 , 550 13 ,100 9 , 760 3 , 320 16 ,40 0 1& ,400 2 , 450 1 ,360 

2 290 376 41, 700 27,800 8 ,110 12 ,600 9 , 240 3 , 380 15 , 000 15 , 500 1 , 690 1 , 230 

3 568 318 37, 800 27 ,400 8, 350 12, 000 8 ,430 3 ,440 1 1 ,400 15 , 000 1 , 390 1 , 230 

4 au 251 35, 200 27 , 200 8 ,190 11 ,600 7 , 470 3 , 840 6 ,460 14, 900 1 , 270 1 , 600 

5 706 568 :52,900 2'7 ,400 '7,870 10 , 900 7 , 070 8 ,1 60 :5 , 380 14,400 1,2:50 1 , 870 

6 602 1 ,:590 29 , 700 27 , 600 8 ,110 9, 920 6,460 1 4,'700 2,350 14 , 200 1 , 110 2 ,000 

7 500 1 ,690 28,:500 27, 400 8 , 270 12 , '70( 6 , 840 17 , 300 2 ,250 14, 100 1 , 310 2 , 100 

8 406 1 , '740 27 ,200 27 , 200 8 , 190 13,800 I 6 , 990 18, :500 :5 , 900 14,100 1 , 270 1 , 960 

9 332 1 , '7 40 26 , 000 26 , 500 7 , 960 1:5, 700 7 , 230 18 , 800 5,860 1:5 , 900 a1 , 190 1 , 820 

l O 264 2 , 100 24, 600 26 , 000 7,:590 1:5,:500 7,560 19 , :500 8 , 990 13 , '700 1 ,150 1 ,470 

ll 238 1 , 780 23 ,500 25 ,100 6 , 610 1:5 ,300 7 , 790 19 ,700 12 , 500 1:5 ,400 1,070 1,190 

12 226 1 , 510 23 , 200 24,100 6 , 010 13,600 7 , 8 '70 19 , 600 14 ,100 1:5 , 300 960 922 

13 213 1 , 2'70 24,100 22 , 800 5 , 660 1:5 , '700 7, 630 19 ,200 1 4,700 13 , 200 860 778 

14 200 1,230 2 4,600 21 , 800 5 , 200 14,900 6 , 990 18,400 1 4, 300 12 , 800 742 706 

~ 200 1 ,430 2~,.1 0 20 , 800 5, 130 14 , 900 6 , 940 17 , 700 13 , 900 12 ,400 706 670 

16 188 1 , 690 25 , 400 20 , :500 6 , 060 14 , 800 ;:;~ 16;-900 13 , 900 11 , 500 670 636 

17 188 1 , 780 25 , 800 20 , 000 4, 990 1 4,600 16 , 200 14 , 600 9 , 670 636 602 

18 176 1 , 820 25 , 600 19 ,:500 4, 920 1 4, :500 3,080 15 , 400 16 , 500 7 , 790 602 534 

19 159 1 , 780 25,100 18 ,700 6 , 060 13 , 800 :~g 14, 200 18, 200 6 , 610 568 468 

20 H5 1 , 740 24, 500 18, 000 9 , 670 14 , :500 1:5 , 400 19 , 200 6 , 540 534 468 

21 150 1 , 690 2 4 ,200 17, 400 13 ,400 15, 600 2 , 62( 

i~ ~22 19 , 800 6 , 8 40 534 4M 

22 H 6 1,640 23 ,600 16 , 700 13 , 600 15, 700 2 , 78( 19 , 800 '7 , 150 568 406 

23 H2 1,780 2:5 , 100 15 , 900 13, 800 14,900 2, 72( 11 , 000 19 , 600 6,380 534 376 24 142 11, 300 22 , 300 16 , 100 14,:500 14,100 :~ 10, 200 19, 200 4,710 500 670 

2& 1~6 18, 200 21 , 600 14 ,000 1 4,900 13 , 200 9 , 500 18,600 3,700 436 960 

28 140 26 ,700 21 ,400 12 , 200 1 4 ,.900 12 , 200 2 , 96( 9 , l 5C 17 ,'700 :5,140 4M 1,430 27 131 42 ,400 23 ,100 9 , 240 14, 300 11 ,500 3 , 25( 0~~ 16 , 9 00 3,440 l ,HJO 1,690 

28 126 62 ,700 2 4,500 7 , 870 13, 600 10,900 

:?~ 9 ,42( i~ :~ 4,160 2 ,150 2 ,500 

29 140 54, 200 25,800 7,:510 - 10 ,4.00 

i: ~~ :5, 770 2,300 3,080 

30 136 51 ,4-00 26 , 600 7 ,390 - 10 , 200 S , 68C 17 , 000 3 ,380 2,000 :5,140 

31 16 4 - 27,.400 7 ,470 - 10 , 000 - 16,900 - 2, 840 1,640 -

Mon th Se cond- Wax imua Wi.n_i_mum lie an Runorr in root-days ac re-reet 

Oc t obe r . .... ...... ....... ....... .. ......... 8, 203 8 14 126 255 18,2'70 Moveaber ..... . . . . . ....... . . . .. .. o •• • •• • • ••• 288 , 531 54,. 200 251 9 , 618 572 , .300 Deoeebe r ..... . . . . . .... . . ..• . .• . . •...... . ... 840 .. 800 47 ,000 21,400 27 , 120 1,668,000 

-- -- --- ------ ------ ------ ----- - Calendar year 1940 .. . .. • .. ... .....•..... ,26 68~ 54.200 126 6 ,.168 4, 4.78 ,000 

--- ---- ------ ------ ------ --- --- Janua ry . . . ... . .. ··· · · · ··· · ···· ·· ·· · ·· · · ··· · 613 , 680 27 ,. 800 7 , 310 19,'790 1 , 217, 000 

February ... . . . ... . ... .. . . ..... .... . . .. . . . .. 249,890 14,900 4 , 920 8 , 926 495 ,600 

llaroh ........ . . . ...... . . . .. . . . ..• . . .. .. . • · . 4.04,420 15 , 700 9 , 920 13 ,050 802 , 200 

Ap ril .... . ...... . . •. . • .. •. . . . .• . . •. • . . . . • •. 160,890 9 , 760 2 , 620 5 ,363 319,100 

llay . .. . .. . ...•..... . . •. . •. . . . . . . •. .. . ... •. . 410 ,490 19 ,.700 3 ,320 13,240 8 14.200 June . ....... . o • • •••• • •• • • • • • ••• •••• • •• • • • •• 411, 390 19 , 800 2 ,260 13,710 816,000 

July . . . ..... . •.. . . . ..•..• . ......• . . .. . .. .. . 302 ,920 16 ,400 2 ,840 9,'172 600,800 Augus t . ......... . . .. . ...... . . . . . .. . .. ... .. . 3,. 686 2 ,460 4M 1 ,087 66 ,820 Septe•be r .. ... ..... . . . . . ...... . .. ... . . . . . .. 38 ,.292 3,.1 40 376 1,27& 76,960 

later year 1Q40-41 . . . .... . .... . . . . . .... . 3,763,.092 6 4,200 126 10,310 7,464,000 

• lo s•s--he1gbt reoordr dhohal"ge oomput.ci t"rom gnp rollOYing daye .. baaed on gage read1nge ror preceding and 
24 SABINE RIVER BABI N 

Sabi ne Ri ve r near Bon Wier, Tex . 

Locati on .- Chain gage , lat. 30°44', long. 93°37 ' , on bridge on U. S . Highway 190, lt m!les east or Bon Wier, Newton County , and 2.4 miles upstream from Caney Creek. Da tum or gage le 46 .4 teet above mean sea ·level , datum or 1929. 

Drainage area .- 8 ,323 square m!lee. 

Records available.- October 1923 to September 1934 , January 1939 to Septembe r 1941. 

0 . S . weather Bureau has collected gage-height records In this v1cln \ ty since 1913. 

Ave rage discha rge.- 13 years (1923-34 , 1939-41 ), 7, 627 second-teet . 

Extremes .- Max imum dis charge observed during year, 51 , 600 second-teet Dec. 13 (gage hei ght, 22 .48 tee t) ; min i mum observed, 525 second-t eet Oc t. 28. 

1923-34 , 1939-41: Maximum dis charge observed , 63 , 000 second-teet Aug. 1, 2 , 1933; 

maximum gage height, 23 .04 teet Aug. 2 , 1933; minimum observed , 185 second-t eet Sept . ll, 22 and 24 , 1925. 

Maximum stage lmowni 26 tee t (present el te and datum) In May 1884 based on lntonna- tlon f urnished by loca resident . 

Remarks .- Records good. Gage read twice dally and of tener during high water. No large ---arYerslone above station. 

Coope ra t i on .- Gage-height reco rd collected In cooperation wl th U. s . weather Bureau. 

Diaohar,e , in aeoond-teet, wate r year Oc tober U140 t o Septellber 1941 

DOJ Oct . Nov . Deo . Ja.n . l'ob . Ma r . Apr . May J UDI J uly Au, . Sept . 

l 782 1,520 :5:5,:500 ~~!~gg 10,700 18,700 13,000 &,&40 ee,Qoo 20,100 4,e40 :s,ooo 2 7eO 1,800 34,eOO 10,900 17,eOO l2,eOO . 8,410 e e,900 20,100 4,100 8,450 3 738 1,800 37,700 31,000 13,500 1e,800 12,200 &,8&0 25 ,500 20,3oo 3,550 8,500 4 715 1,410 41,700 30 ,500 15 ,400 1&,&00 12, 200 5 ,8eO 25 ,500 22 ,300 s,ooo 3,110 

5 788 1,2:50 44,500 31,000 1&,400 14,900 11 , &00 e,e._o 22,eoo 22,300 2,720 3,880 

6 1,0 40 1, 040 44,&00 31,000 13, &00 14 ,200 10,400 15 , 000 1&,000 21,300 2,780 3~8eo 

7 1,070 1, 040 43, 000 31,000 12,000 15 , 800 Q, 830 lQ ,400 Q,830 1Q,eOO 2,e70 3,330 

8 1, 040 1,eoo 43 , 000 31, 000 11,400 18, 000 9 ,240 21,800 11,100 17,200 2,&00 3,110 

9 938 2,0:50 U,700 31,000 11,100 19,800 9,110 24, 000 10,400 15,800 2, 5eo 3,no 10 828 3,330 40 ,eoo 30 ,&00 10 ,400 20, eoo 9,110 24,&00 10,000 14,500 S,MO 3,110 

11 782 6 ,Q70 :58,600 30,.600 9, e30 20,100 Q,llO 23,700 12,eOO 14,400 2,460 3,000 

12 7eO 7,900 38,600 30 , 000 8,Q80 18 ,700 Q,3'70 22,800 16,400 15 ,100 2,340 2 ,720 

13 e92 e,870 47,900 30 , 000 8,250 17,600 g,eoo 22,000 17,800 17,400 3,000 2,280 

14 570 .200 47,900 ~0,000 7,680 17 ,,00 9,eoo 21,800 18,700 18,QOO 8,,60 1,Q40 

18 648 ~,&ISO U,500 ~0,000 7 , 100 17,600 9, 2 40 21, 800 18 ,900 ~8,QOO 2 ,080 1 ,870 

16 626 2,860 ,6,800 29 ,500 e ,750 17 , 800 8.,730 ,~00 18 ,QOO 18,000 1,Q40 1,&60 

17 608 2,400 43,000 29,500 6,&20 17,800 7,e80 21,000 18,900 17 ,000 1,800 1,620 

18 &86 2,660 ,o,eoo 29, &00 6,410 17,800 &,&20 20 ,&00 17 ,600 1&,200 1 ,720 1,,uo 

19 &85 2,&70 36 ,900 28,'700 e ,300 17 ,BOO &, 7&0 19,600 1e ,BOO 12,QOO 1 ,eoo 1,330 

20 &85 2,6'70 34,eOO 27 ,eoo 6,980 18, 700 5 ,310 18, 700 le,800 11,100 1,620 1 ,Beo 

21 866 2 ,620 33,300 26,&00 11,200 22,800 5 ,200 17 ,eoo 17,eoo 9,7eO 1,e20 1 ,800 

22 566 2 ,780 31,600 2e,200 14,700 24,000 8 ,ovo 16,500 18 , eOO 8,e10 1,UO l ,UO 23 646 3,000 30,600 2,,300 16,800 24,000 6,190 16 ,400 19,800 8,850 1,,10 1,040 24 537 9,9&0 30,000 23,400 17,400 24,300 8,Q80 14,400 20,100 8,020 1,370 1,300 23 633 23 ,800 29,100 22,800 17,800 24,000 10,500 13,,00 20,300 7 ,330 1,410 8,400 

26 6SV 27,900 29,&00 22,300 18,900 82,000 Q,530 12,200 20,300 e,uo 1,~70 4,210 

27 6S7 30,500 31,000 21,300 19,eoo 19,e00 8,140 ll,eoo 20,500 e,870 1 ,330 3,580 28 529 32,700 32 , 700 18, 900 1Q , 800 17,eOO e,620 11,&00 20,800 &,800 1 ,330 3,ll0 29 see 32,700 32,700 1',100 - 1e,ooo 6,190 18,200 20,800 8 ,Q70 1,720 3,000 30 e06 32,700 33,300 13,700 - 14,600 e,620 2e,soo I ao,eoo &,7&0 2 ,780 3,3&0 31 828 - 34,eOO 11,400 - 13,700 - 27,eOO - 8 ,0QO 3,220 - Month Second- llaxiiiUil 1Un1•u I Moan RllOott in toot-dayo aore-teet 

October ....... . • . ........ . ........ . ..•.. . .. 21,67e 1,070 629 eve 48,800 Noveaber . .. . . . ...... . .... . . . . .. . .. . ... . .... 257 ,e10 32 , 700 1,040 8~7 5ll,OOO O.oeaber .. . . . ... . .... ..... •. . •. ... . ..... .. . 1,171,700 47,QOO iG , lOO 37,800 e,3a•,ooo ------ - ------ ------ ------ ------ Calendar year 1Q40 ................. ..... 3,29&,.791 47,QOO 629 9 , 00& e,en,ooo - - - ---- ------ -- ---- ------ -- ---- January . ... . . .. . . ......... ..... . ........ . .. 83e,300 &3,QOO 11,400 ae , Q50 1 , &&7,000 February .. . . . . . , . ...... . . . , ..•. . , ., •.• • .... 834,Q10 19,600 e,300 u,geo 854,800 llaroh . . . . .. . . , . .. .. . ... . ........ , •.. ..•..• .. 676,400 24~00 18,700 18,eeo 1 , 141,000 

April . . . .. .. . .......... •• . • •.•• . • . .• .•. .•. . 2e2 , eeo 13,000 &,090 8,'7~ 621,000 ~ ........ .... ..... ..... ........... ...... . 63e , 610 27,500 6,850 17,810 1,ou,ooo June . . ...... .. ........... .. ... . . .. . , ....•.. 568,630 26,900 Q,830 18,820 1,108,000 

July ........ .. . . . . ... .... . . . ........ .. ... . . 480,eeo ea,aoo e,OQO l3,8QO 8&,,000 .AUJUit . ... ... . . ...... . ......... . .... .. , .... 70,780 4~,0 1,:530 8,883 140,400 S.ptoabor ..... . . . .........•..•.. •... . . ... .. 74,000 4,210 1,040 e,,e7 148,800 

Water year 1940-41 .... .. ........ ... ...... e , 1BQ,ese 47,900 ~IIQ 14, 060 0,170,000 
SABI NE RIVER BASIN 25 

Sabine Rive r near Rul1 rt, Tex. 

Locati on.- Wire-we i ght gage, l at. 30°18' 10', long. 93°44'40', on bridge on State Highway 235, 2.4 miles nort h or Rul1 rt, Newton County, and 4. 5 miles downs tream rrom Cypress Creek. Datum or gage is 4. 08 teet above mean sea l evel , datum or 1929. Prior to Mar. 1, 1941 , s t arr gage at sits 4.2 miles downst ream and at 2 .02 ree t lower dat um. 

Drainage area.- 9,440 square miles. 

Records available .- October 1924 t o September 1941. 

Average discharge .- 17 years, 8 ,060 second-feet. 

Extremes .- Maximum discharge observed during year, 72,800 second-teet Dec. 16 (gage he!ght, 16.46 teet); m1n1mum observed , 848 second-teet Oct. 25, 28. 

1924-41: Maximum discharge observed, 76 , 600 s econd-teet May 24, 25, 1935 (gage height, 17.9 teet, present site and datum); minimum observed, 338 second-teet 

Sept. 25-27, Oct. 2, 3, 22-24, llt.39 . Higher stages are known to have occurred in 

the past. 

Remarks.- Records good. No large d!vere!ons above stat ion. Gage read tw!ce-daily and ---ortener during h!gh water. 

Oot. 1 to Pob. 2S Kar. 1 to Sept. ~0 

2.0 470 9.5 7,770 u.o 48,800 5 .0 1,870 12.0 8,550 ~.0 1,030 10.0 8,950 15.0 59 , 800 8 . 0 2,1150 1~.0 12,400 4 .o 1,710 10.5 10,800 18.0 72,800 7.0 2,870 H.O 21,000 8.0 ~.MO 11.0 12,800 e.o 3, 220 15.0 ~•.ooo e.o 5,390 12.0 21,000 10.0 4,800 16.0 471000 9.0 6,810 1~.0 ~~.eoo 11.0 6 ,1 20 

Oieohar&e . in second-teet , water year October H~40 to September 1941 

Day Oot . Nov . Ceo . Jan . Feb. War . Apr . llay Juno July Auc . Sept. 

l 1,490 988 40.~00 39,000 19,800 20,400 18,400 8,000 46,700 21,800 8,000 ~.160 

2 1,350 ~.eeo 39,000 39,000 18,800 21,000 17,200 7,730 41,800 21,800 7,220 3,~0 

3 1 , 280 5,140 39,000 39,000 17,000 21,000 15,800 ~.730 3&,300 21,800 8,320 3,380 4 1, 280 6,620 ~9 000 ~7. 700 15,.00 20,400 14,700 8, 000 ~o. 800 21,&00 5,21SO ~.280 

5 1, 220 4,900 40,300 ~8,400 14,000 19, 700 14,400 10,200 28,200 22,300 4,800 3,:s30 

6 1, 220 3,880 ,1,600 ~5,100 15,400 19,000 1~,800 12,400 28,200 24 , 900 4,~oo ~,&20 

7 1,280 ~.oeo 45 ,500 3~.800 18, 200 17,800 1~, 500 14,400 28,200 24,900 4,1~0 ~,860 

8 1,490 2,570 48,100 ~3,800 17,000 17,200 12,900 16,200 24.200 24,200 4,300 ~,920 

9 1,570 2,570 49,400 ~3, 900 17,000 17,200 12,200 19,000 20,400 22, 300 4,050 ~.eeo 

10 1,570 2,910 50,700 ~3,800 18,200 17,800 11,400 21,800 17 ,200 21,000 ~,920 ~.sao 

11 1,420 3,780 50,700 ~2,500 16,400 19, 700 10,800 23,000 16,700 19, 700 ~.800 3,620 12 1,S50 5,280 49,400 S2,600 14,700 21,000 10,200 25,800 16,200 19,700 3,680 3,680 13 1,280 e, 810 57.200 ~2, 00 14,000 21,600 10,200 25,600 16,200 22,300 3,500 ~.500 

14 1, 220 e. 220 62,4.00 S2,500 12,800 21,800 ~0 2~,000 18,400 25,000 ~.500 ~.280 

15 1,150 9 , 250 68,900 ~3,800 11,700 21,000 9,~0 22,~00 21,000 25,800 S,440 3,000 

16 1 ,01l0 S,950 72,800 36,400 10,900 20,400 10,200 21,500 21,600 2t,900 ~.180 2,670 17 1,030 8,970 67,600 ~9,000 10, 200 19 , 700 9 , 830 21 , 000 21 ,000 21S , 600 2,840 2,510 18 988 6, 280 62,400 . 700 8,950 19,700 9,~0 21,000 20,400 24,200 2 ,620 2,360 19 988 4, 270 57, 200 ~6,400 8 ,460 20,400 9,150 00,400 21,000 22,~00 2,510 2,260 20 988 3,980 5S,300 M,SOO 8,220 21,600 8,000 20,400 21,000 20,4.00 2, ·410 2,210 

21 958 3 , 980 49,400 32,500 8,000 22,SOO 8,980 19,700 20 ,400 18,400 2,~10 2,110 22 ll08 ~.sao 44, 200 S1,200 8 ,000 23,600 8,120 19, 000 19,700 16,700 2,260 2,010 

23 908 ~.eeo 40,~00 29,900 8,950 27,500 5,930 1 8 ,400 18,400 14 , 700 2,180 1,980 24 908 6 , 280 36,400 28 ,600 10,900 ~0,100 6,120 17,800 1S,400 13,200 2,110 4,230 

25 ll08 9,550 35,100 ~,300 12,800 28,800 6,980 16,700 19,000 12,400 2, 080 6,320 

26 ll08 18,800 36,400 28 , 000 15,400 rn,5oo 8,rno 15,800 19,700 11,000 2 ,110 6,530 27 908 ~2,500 36,400 26,000 18, BOO 26,200 9,HSO 15,000 20,400 10,800 2,160 28 ll08 48,800 37,700 24,700 19,800 ~,900 9,630 16, 200 1:m ~ugg 9,830 2 ,110 29 ll08 48,100 ~9,000 24,700 - 25,600 ,~0 2-1,000 9 ,480 2,110 6,530 30 988 44,200 ~9,000 25,400 22,300 9,160 32,700 21 , 000 9,150 2,160 5,100 31 988 - ~9,000 21 , 000 - 20.400 - 44,400 - 8,550 2,670 -

llooth Second- Maxiau. M1nimua lloan Runott in toot-<laya aor&-teet 

October ........ , . . ... . .... . . . . . . . ...... . .. . 35,~62 1, 570 908 1, 141 70,140 

Nove•ber ... . ....... . ... . ......... . ...... . .. ~15,118 48,100 988 10,500 625,000 

Oeceaber ............. ···· ······· ··· ·· ·· ·· ·· 1,467,700 72,800 35,100 47,350 2,911,000 

---- - -- ------ ------ ------ ------ Calendar year 1940 ..... ...... .... ....... 4,209, 210 72,900 908 11,600 ~~_:~9!o_oc: ·------ ------ ------ - ----- January .......... . ....... . ....... . . .. ...... 1,00~,800 ~9,000 21,000 32,380 1,991,000 

rebruary ...... . ..... . ..... . .......•........ 384,780 19,800 8,000 13,740 763,200 

llaroh .......•..•..•.. • .••.•. .. . . • . ••.•. .• .. 676,400 30,100 17,200 21,790 1,340,000 

April. .. . . . . . ..• . ........ . •.. . ....•. . •.. . .• ~:~~g 18 ,400 5,930 10,880 636,400 

11"7 .. • . . . ... ... • . .• • .• . .•.•..••.•.••.•• . •.• 44 , 400 7 , 730 18, 770 1,154,000 

June .... . .... . ....•.. . ....•..........•.... . 888,500 45,700 16,200 22,960 1,366,000 

July . . . ... . . ... ...• • . • .• • .•.....•••..•. .... 585,710 25,500 8, 550 18,890 1,162,000 

Au~U•t .. . ............ . ... . ..•.. . · ... • .. · · · 107,770 8,000 2,060 ~,476 21~,800 

S.ptoaber . . . . . . .... ..... . ....•.. •. . . .•..... 114,080 7,470 1,980 3,802 228,200 

Wator roar 1940- 41 .... ... .. ........ ... .. a, 280 ,~90 72,900 908 17,810 2,480,000 
26 SABI NE RIVER BASIN 

Lake Fork ot Sab ine Rl ve r near Qui tman, Tex . 

Loca t1on.- Wire-weight gage , lat. 32°46 ', long . 95°28 ', on br i dge on State Highway 37 

fial! a mile downstr eam !rom Dry Cr eek and 2.5 miles eouth ot Qui onan wood county ' 

Datum ot gage Is 317 .42 teet above mean sea level , datum or 1929 . ' · 

Drainage area .- 586 square miles . 

Records available .- June 1924 t o April 1926, February 1939 to Septembe r 1941. 

Extr emes .- Maximum discharge observed during yea r , 9,200 second- tee t Dec. 28 (gage height, 

18 .25 t eet); mi nimum observed , 0.2 second-toot Oct. 20-29 , Sept . 22 , 23. 

1924-26 , 1939-41: Max imum discharge obse rved, t ha t ot Dec . 28, 1940 ; no flow a t t imes. 

Maximum stage known, 22. 4 tee t, dur i ng latte r part ot Januar y 1938 , a ccordJ.ng to l nt ormatton rurnlshed by l oca l resident . 

Remar kS .- Records poo r . Gage r ead twice dally and o r tener durtng hi gh wa ter. No dt ver- --;rrons above stati on. 

Discharge, in second- teet. wa ter year Oc tober 1940 to September 1941 

Day Oo l . Nov . Dec . Jan . Feb . War. Apr . llay June July Aug . Sept . 

1 ll 164 794 1,350 14 2 1,070 MO 888 26 97 19 9 . 8 

2 9. 5 157 283 678 554 856 464 1,410 60 40 18 7 . 8 

3 e.o u s 109 343 996 452 666 3,100 151 31 17 6. 5 

4 6. 2 54 70 227 1 ,460 225 544 2, 230 400 28 16 4. 9 

5 5 .4 30 56 178 2 , 260 160 378 1,480 675 26 16 3 .5 

6 4 . 8 19 4 8 1 54 1 ,6 20 351 232 1,020 1,120 22 15 2. 5 7 6 . 1 17 45 132 8 23 1,4 20 213 1,120 1 , 340 21 1 5 2. 1 

8 4 . 9 14 43 118 333 5 , 600 3H 2, 220 1,000 19 15 1.8 

9 3.3 71 43 lOB 160 5 , 800 51 6 2,200 681 19 17 1.4 

10 2 . 2 259 39 102 1 26 2,970 616 1 ,540 705 18 19 1.3 

ll 1. 5 213 39 96 102 1, 850 471 1, 0 80 1, 330 1 8 19 1. 2 

12 1.0 340 69 88 89 1, 020 190 924 1, 590 40 38 1.0 

13 . 6 427 3 28 82 76 4 20 122 1,620 2 ,860 141 26 1.0 

14 .6 331 63 2 150 71 220 99 1,840 3,080 U 2 20 .8 

15 . 5 122 768 220 66 171 8 2 965 2 , 190 648 16 .8 

16 .4 45 97 2 235 61 15 7 7 6 270 2,190 70 4 14 . 7 

17 .3 30 1,260 235 57 143 71 92 2, 0 60 790 12 . 6 

18 . 3 24 2,460 178 53 129 71 60 3, 090 1,100 ll .5 

19 .3 21 2,370 126 5 1 118 82 48 2, 850 1,250 ll .4 20 .2 19 1, 510 96 154 102 83 43 1 , 740 731 10 . 3 

21 .2 20 734 76 259 9 2 74 40 726 272 9. 7 .3 

22 .2 26 280 68 2Sl 9 2 74 37 190 259 43 .2 23 . 2 46 2 171 64 284 300 358 34 68 150 35 .2 24 .2 1,320 126 63 550 693 782 32 46 59 29 133 25 . 2 1, ?30 116 82 9 24 768 1 , 9 20 30 40 38 231 174 

26 .2 2,990 665 349 1, 020 704 3 , $ 10 ee 35 30 451 14 6 27 .e 2 ,950 2, 860 648 1,310 5 23 2 ,370 27 9 5 27 544 76 28 .2 2, 000 7 , 880 700 1,:no 288 1,450 28 5 80 24 441 26 29 .2 1,880 7 , 470 704 - 192 568 28 274 22 111 10 30 .3 1,450 3, 740 446 - 154 397 26 185 21 24 7.8 31 51 - 2 ,160 178 - 229 - 26 - 20 15 -

Month Second- Maxiaua Mini.ua lloan Runott in toot-days ao r ... teet 

October . .. ... . . . . . . . .. .. . . .. . . . . . .... · · ·· · · 120.2 51 0. 2 3.88 238 November ... ..... . ... . . . . . ... . . . .. . .. . ... .. . 17,:500 2,990 14 577 34 , 310 December .. . ........ . . .. ... . . . . . . . . . . . . . . . .. 38,140 7,880 39 1,230 75,650 -- - - - -- ------ ------ ------ --- -- - Calendar year 1940 .... .. . .. . . . .. . . . . . .. . 124,904 . 2 7,880 0 341 247' 700 ---- - - - ------ ------ - --- - - -- -- - - January .. . . . ........... .... .... • •• • •• O • • •· · 8,:562 1,:550 63 270 1&,590 

February . . ... ... . . .. . o. o . . •. . ... ··· ······ ·· 15,162 2,260 51 s•2 30,070 llarch . . . . .. . . . ...... . . . ......•.. ... . . . . ... . 'Z7,267 5,800 92 880 54 , 080 April. . ...........•. . ... . . .... . .. .. ....... . 17,15 2 :5,510 71 572 3o&,020 

llay .. . . . . ...•..• . .... . . •. . • ..•. .. . . .. •. . • . . 24,o&66 3,100 26 789 ,8, 530 June . . .. ... . .. . .. .. . . o• . . . . .. o. •o ... . o o .... :H,377 3,0QO 26 l,Oo&6 82,240 July ... . . . . . ... . .... . . . . ..•....... . ..• . ... . 7,107 1 , 260 18 229 14,100 August . ............... · · · ········· • • o ••··· 2, 275o 7 su 9.7 73., 4,510 

Septe•ber .... . ............. . ............ .. .. 622.4 174 .2 20.7 1,2:50 

Water year 1940-41 ••••• ~ ........ 0 •• • •• ••• 189,351.3 7,880 .2 819 375,600 
SABINE RIVER BASIN 27 

Big San<ly Creek near Big San<ly, Tex . 

Location .- Water-stage recorde r, lat. 32°37 ' long . 95°06 ' , on county highway bridge 2 .2 miles northeast or Big Sandy , Upshur 6ounty, and 7 .8 m!les upstream from mouth . Pr!or to Oct . 6 , wire-weight gage at same site and datum. Datum or gage Is 281.6 t eet above mean sea level , unadjusted. 

Drainage area.- 235 square m!les. 

Records ava!lable .- Feb ruary 1939 to September 1941. 

Extremes.- Maximum discharge duri ng year not determined; m!nlmum observed, 13 second-teet Oct. 5. 1939-41: Maximum discharge , 1,400 second-feet May 31 , 1940 (gage height , 14 . 75 teet, from graph based on gage read i ngs); minimum obse rved , 7 . 7 second-feet Sept . 30 , 1939 . 

Maximum stage known, 20 .4 t eet (pr obably artected by backwate r ! rom Sabine River) 

In January 1938 , according t o lntormet.lon furnished by observe r . 

Remarks.- Records good except those t or pe riods or no gage-height record , which are poor. --cra:ge-read t wi ce dallY Oct. l-5 . No large diversions above station. 

Discharge, in second-teet . water year October ].940 to September 1941 

Da.l Oct . Nov. Dec. Jan . Feb . atar. Apr . Yay June July Aug . Sept . 

1 14 :~:} a350 675 178 391 254 215 40 355 1 a29 24 

2 13 515 222 358 232 208 79 278 a29 .M 3 13 al19 286 391 222 302 658 215 84 262 a29 ~ 

4 13 dH 238 310 222 262 5i1 222 84 246 a 29 26 

5 13 d19 200 262 238 222 338 208 73 208 a 29 24 

6 13 a119 171 230 270 286 270 238 73 144 a 27 23 

7 15 alM 171 222 310 535 286 262 591 107 a 27 23 

8 1'7 al64 167 208 302 535 302 230 611 84 a31 23 

9 17 a164 144 185 254 809 270 200 41 2 73 a31 3 1 

10 15 a238 138 171 208 1 ,190 230 208 4 25 63 a 31 3 2 

11 14 a238 144 157 178 900 200 230 515 74 a31 29 

12 14 a 208 185 144 167 650 192 230 429 164 a27 27 

13 13 a208 200 138 144 479 185 215 461 1 21 5 27 26 

14 14 al64 200 . 164 125 358 171 192 497 215 a29 26 

15 14 a208 ·!163 171 119 294 157 185 625 215 31 26 

16 14 - 319 164 113 246 144 171 900 al78 3 1 26 

17 14 d64 302 157 107 215 144 157 650 al07 27 26 

18 13 •84 369 157 107 192 144 131 420 a63 26 24 19 14 a64 445 164 101 178 138 95 649 aSS 24 23 20 14 a84 445 l64 144 17 8 131 78 840 a90 23 21 

21 14 a64 403 1 57 144 178 125 68 625 a 95 23 21 22 14 a95 338 150 164 171 119 58 441 a95 110 20 23 14 278 131 178 239 138 54 321 a 63 63 20 24 14 230 125 270 294 157 49 23 8 a56 49 56 25 15 200 119 286 302 15 0 44 157 a47 40 101 

a,; 15 0.60() 294 138 302 348 150 3 8 113 a47 34 64 27 

.~ 625 131 338 u s 150 36 146 a4 2 31 56 28 535 125 369 429 157 38 922 a4 2 29 40 29 a40 515 131 - 338 171 38 625 a38 27 34 30 a29 870 144 - 278 192 42 527 a34 27 32 31 a78 - 930 157 - 278 - u - a31 26 -

Month Second- lrta.xi.IDU. Minimum Meao Runott in toot-days aor&-feet 

- Ootober . .......... . •.......• . .............. 5 44 - 13 17.5 1,090 

No• .. ber ...... . ........... .• ... . .•. . ....... 8 , 281 - - 276 1.6, 42(\ 

Deoeabe r ........ . .............•.. . .. ... .... 1.0,2761 930 1~8 "'"", 20 , :580 

Calendar yaar'lQ-4.0 - '"4~ ,-an.; I 

------ ------ ------ ------ ......... .. ...... ...... - 9 . 5 122 88, 600 

------- ------ ------ ------ ------ January ... · .... . .... ........•.......•... . ... 8, 257 675 119 202 12,410 Februart . ....... .. ...... . ...... . . . . 4 ••••••••• 5,7'72 369 101 206 11 ,450 

llarob .. . .... .... . . .•.....•.•..•..•... : . . . . . 11,880 1,190 171 383 23, 680 

April ..... . .. .. . . •.••.• .. • .. •.••.•.. . . . .... 4,448 658 119 216 12,830 

llo.J . . -· ....• . ......•.. .... ....... .. . . ...... 4,3QQ - 262 ~6 142 8 ,?30 

June ..... .. . . .•....... .. . , ... ............. . 12, 473 900 40 us 2A ,7-4.0 

JUlJ . . .. .... . .......... . ...... , ........... . 3,7BQ ~5 5 - 122 7 , 620 

Aucuat ... . ..... ................••.•• ... ..... 1,027 110 - 33.1 2,040 

Septeaber ...... ...... , .f ... .... . ······· · ··· 974 101 ·20 ~2 5 1,930 

Water year l!H0-41 .. 72,13'7 -- 1.& 198 143,~1» ········ .. .. .. .- De~. ~0 18p. a.) 1,020 oeo.-n.J na!'. [lJ \D •·•• ~,...., uo.-tt. 1 •=• "" 

(10 ..... J.,J.vu •eo. -tt. 

498588 0 - 43 - 3 
28 

SABINE RIVER BABIN 

Cherokee Bayou near Elderv1lle, Tex . 

Locat1on .- water-stage recorder, lat. 32°20', long. 94°42'i at br1<1ge on county h1ghway 3.8 miles southeast or Elderv1lle, Gregg County, 4.6 m1 es upstream !rom br1dge on State H1ghWay 149, and 19.3 m11ee upstream rrom mouth. Datum or gage 1e 286.8 teet above mean sea level, datum or 1929 (Corps or Eng1neere, U. 8. Army , b~noh mark). 

Dra1nage area.- no square m1lee. 

Records ava1lable .- August 1939 to September 1941. 

Extremes.- MaX1mum d1scharge dur1ng year, 10,200 second-teet" NOv, 23 (gage he1ght, 12 .81 t eet), trom rat1ng curve extended above 3,500 second-teet by logar1 thm1c plott1ng; 

m1n1mum, 0.8 second-toot Oct. 6. 1939-41: MaX1mum d1scharge, that or Nov. 23, 1940" no now at t1mee. 

liu1mum stage known, about 14 teet 1n September l9i3 , accor<l1ng to 1ntormat1on 

rum1shed by local ree1dente . 

Remarks.- Records good except those !or per1od or no gage-he1ght record and those above 

---r,uou second-teet, wh1ch are poor. No d1vere1one above stat1on. 

Diaoharce . in aeoond-teet, water year October 1940 to September 1941 

D&l' Oot. Nov . Dec. Jan . Fob . War . Apr . 11&1 June July Au& . Sopt . 

1 ~.o 248 168 1.~90 lee 190 1215 77 7 a.~ 32 

2 2.2 ~32 HO 1,780 299 162 128 86 eo 

~ alll 6 .7 ae 

3 1.8 348 127 820 476 183 170 92 eo 6.4 eo 

' 1.3 190 109 468 372 H6 439 83 68 e. 7 1M e 1.0 68 9& 340 238 134 306 188 84 18 7.1 20 

6 .9 31 10"1 281 190 238 188 1,080 34 16 e. a 18 

7 4.2 Ill 750 2155 175 830 138 1,e20 193 13 7.2 1e 

8 4.8 17 1 ,HO 232 172 91~ 118 895 688 lB 13 13 

9 4.1 29 888 218 153 469 106 ~9 2 380 ll u 17 

10 4.4 98 320 202 129 281 94 238 207 10 111 lfl 

ll 4 . 2 11.6 2156 182 118 208 1M 212 

1 

1116 37 u 1e 

12 ~.8 158 440 172 116 165 79 286 106 10 20 

13 3.1 129 850 170 114 HO 76 185 114 e.o 19 

14 2.9 101 690 248 109 ue 70 114 178 7.0 le 

18 4. 6 ee 638 372 106 l~e e8 84 122 e.l 16 

16 3. 7 65 1,820 436 101 131 ee ee ol62 94 8.3 u 

17 2.8 31 942 29~ 94 182 e6 86 82 8.1 13 

18 2.3 28 464 222 94 281 63 66 39 4.1 ll 

19 1.9 28 299 178 112 180 79 M ae 3.4 10 

20 l.e 26 245 151 350 156 92 eo 114 2.9 9 . 3 

21 1.4 28 220 1M 580 180 10'7 58 

} 20 2.3 7.8 

22 1.3 lZl 192 131 4 20 190 129 41 17 100 6 .5 

23 1.4 e,:sso 170 158 289 2158 141 39 16 220 e.o 

24 1 .4 5,15.:50 158 808 4~0 ~4 2215 34 13 ~24 116 

25 1.6 2,:580 180 980 ~ 507 352 30 •31 12 244 299 

26 1.7 1,490 515 492 479 27 2 290 28 u 8 6 452 

27 2.0 850 2., 080 358 290 200 149 27 13 22 360 

28 2.3 500 1,630 278 ZlO 168 96 50~ 12 16 ~16 

29 2.2 287 878 215 U9 83 ~2 

I u 13 1.08 

30 2 . 6 208 392 180 131 8l 58 13 17 49 

31 Ml 298 162 134 57 ll 37 

Month Second- lla:dau. llin.1mua Runo!! 1D toot-daya lie an acre-teet 

O,otober . .. . .. . .. . .. . .. .. ... ...... ........ 417.4 Ml 0 . 9 ta.6 828 Novelibe r .. .... . ...... .. .. . Deoeabe r . ... . . .. . .. . .. ·•····· ··· ····· 19,G72 6,~eo 17 666 39,610 

• • •• • •• ••• •• 0 ... . - · . 16,431 2,080 g6 830 32,690 

- ------ Calendar year 1940 . . . . . • . . .• .. •. . • .. . 49,90~. 2 e,3eo .2 136 ge,9eo 

----- -- January .. .. . .. . ..... .... .. .. .... ... ...... 12,082 1,780 tal 390 u ,veo 

~u• : : : : :: :::: : 7,000 643 114 260 111,880 

7,827 913 1~1 262 1&,820 

4,182 439 63 139 8,1190 e, 220 1,e20 26 1103 12,4e0 

3,640 628 121 '1',1120 

1,178 10 38. 0 a,a•o 1,200.8 &24 e .& 311.7 8,&80 

2,218.6 630 e.o 74.0 4,400 

Water year 1940-U ··· ········· ····· ····· 82,428. 8 e,aeo . 9 8lle 183,600 

~ ~IS!MWI- WOTo 23 (e P·•·) 10,1100 ooo.-ttoJ !leo. 27 (V p.a.) e,e20 ooo.-tt., 2, eec.- • lu. 1 (10 p ••• ) 

& Io pp-bo1pt l'OOOJ'dJ <11ooh&!'p ._ted on '*11• ot roool'dod .._ 11l otap all4 -"'"' l'Ooo~ . 
NECHES RIVER BABIN 29 

Neches Rive r near Neches, Tex . 

Location.- W1 re-we1ght gage , l at. 31°54', long. 95°26', at bridge on U.S. Highway 79, 

halt a mne downstream rrom Internat1onal-Oreat Northern Ra1lroad bridge , 1 m1le down- stream rrom Walnut Creek, and 4.4 miles northeast or Neches, Anderson County. Datum or gage 1s 263 . 9 teet above mean sea level, datum or 1929. 

Drainage area. - 1,129 sq.:.are m1les. 

Records ava1lable .- February 1939 to September 1941. 

Extremes.- Maximum discharge during year, 8,400 second-teet June 12; maximum gage height, 16.73 teet, !rom tloodmarka, Nov. 28; m1n1mum observed, 14 second-teet Oct. 23, 26 . 1939- 41 : Maximum discharge, that or June 12, 1941; maximum gage height, that or Nov. 28, 1940 ; no !low Oct. 3-5, 1939 . The tlood 1n May 1908 reached a stage or 24.3 teet, according to Informati on rurnlshed by local resident. flood or May 1884 probably reached a higher stage . 

Remarks .- Records good. Oage read twice da1ly, oftener during high water. No diversion 

----e:DoVe stat 1 on . 

Discharge , in second-teet water year October 194.0 to September 1941 

Da)l Oot . Nov . Dec . Jan . Feb . Mar . Apr . May June J uly Aug . Se p t . 

l 78 9~ 4 , 890 &,750 762 1,670 1 , 090 712 186 1 , 030 9~ 9~ 

2 8~ 98 3 , 600 5,4~ 8~4 1 , 820 1 , 120 712 180 8M 70 78 

3 78 76 2 , 700 3, 980 910 1 , 920 1,470 664 252 696 76 66 

4 55 68 2 , 260 2 , 660 g~o 1,870 ~20 616 284 728 70 55 

5 " 88 1 , 980 2 , 260 955 1 ,770 1 , 180 680 276 834 66 41 

6 40 5 l ,S20 2 ,040 955 1,670 1,180 9SO 268 9~0 66 35 

7 36 180 1 ,720 1 ,820 955 1 , 820 1 , 390 1,180 350 930 76 ~ 

8 2 206 1,720 1 ,&70 980 1,870 1,770 1 , 150 470 852 86 ~2 

9 28 236 1 ,670 1 , 570 1 , 000 1 , 870 1 , 920 1 , 060 540 728 88 24 

10 2~ 260 1 , 1520 1 ,430 ~0 1,820 1,720 980 664 696 78 51 

11 22 260 1,620 ,~20 1 , 090 1 ,870 1 ,470 9~ 1 , 410 762 68 61 

12 20 244 1 , 470 1 ,240 1 ,120 2, 110 1 , :590 890 6, 920 870 66 49 

13 19 213 1 , 430 1 , 150 1, 120 2 , 260 1 ,320 910 6 , 750 9~0 66 39 

14 21 174 0 1, :560 1 , 060 2 , :540 1 , 280 9~0 4 , 890 955 ~ ~ 

15 22 220 1 , 570 1,520 980 2 , 260 1 , 180 980 ~0 910 57 49 

16 22 268 1 , 820 1, 620 890 1,980 1,090 1 , 000 ~0 8~4 53 57 

17 20 292 1 , 870 1,470 798 1 , 770 1 , 030 1,000 2,260 728 49 55 

18 18 ~20 1 , 820 1 , 390 712 1 , 570 930 910 2 , 110 864 54 51 

19 17 340 1 , 770 1 , 320 648 1 , 390 8~4 780 2 , 110 ~2 61 42 

20 1 6 0 1 , 770 1 , 280 762 1 , 280 728 600 4,690 616 59 ~6 

21 18 292 1 , 820 1,280 S70 1 , 180 648 4~2 7,280 584 53 M 

22 16 28 1,820 1,280 890 1,090 568 3~0 5,900 484 47 32 

23 15 1 , 440 1 , 820 1 , 240 9~o 1,060 568 268 4 ,100 ~50 47 ~0 

24 15 5, &80 1,720 1,210 1 , 280 1 , 060 600 260 2 , 700 268 70 49 

2~ 15 5 , 580 1 , 620 1,210 1 , 520 1,060 648 300 2 , 110 206 93 1~2 

26 14 4 , 760 1 , 620 1 , 180 1 , 620 1 , 090 696 MO 1,820 186 78 228 

27 l& 5, ~0 1,870 1,160 1 , 670 l , ()gO &96 ~~0 l , t>70 174 100 199 

28 15 7 , 800 2,180 1 , 060 1,570 1,150 680 276 1 , 430 162 126 192 

29 l& 7,620 2,3,0 980 - 1 , 150 ~2 244 1 , 320 1~ 120 6 

30 15 6 , 400 2,920 890 - 1 , 180 ~2 220 1 , 210 120 12~ 320 

31 31 - 6 , 400 816 - &1,140 - 206 - 93 10& -

Month Second- Ma.xi•wa Miniawo Mean Runort in root-daye acre-teet 

Oc t ober ..... . •... . ... ..... .. ...•........... 881 ~ l4 28 . 4 1 , 750 

Noveaber . ......... ..... . . ......•. . . . ... .. .. .g ,331 7 , 800 68 1 , &44 97 , 850 

Deoeaber .... ............ . . ........• .. ...... 66,1580 6, 400 1 , 430 2,148 132 , 100 

-- ----- ------ ------ ------ --- --- Ce.lendar year 1940 ········ ·· ··········· · 168,921 7 , 800 l4 462 ~~5 100 

------- ----- - --·--- ------ ------ January ..... . , . . . . ...... . ......•........... 66,366 6,760 816 1,788 109 , 800 

February . ........... .. .•..• .... , . . •.••.... . 28 , 741 1 , 620 648 1,026 57 , 010 

Ma rch ... , .... . ....•....• . .. . ......•........ ,9 , 180 2 , 340 1 , 060 1 , 586 97 , 560 

April ........•..• . •....•..... . ....•..•..... 31 , 780 1,920 568 1,059 6~ ~0 

ll&y . . • .. . ....•... . • . ....•.•....•..•... . .... 20, 870 1 ,180 206 67~ 41 , 400 

June . ..... . ... .. . . • . .. .• ..•....•..... .. ... . 70 , 060 7 , 280 180 ~35 139,000 

J uly ......... , ... . •.......•.... , ........... 18,924 1 , 030 93 6lQ 37 , 540 

Au&ust .... . ... .. .......•..•.......•........ 2 , 328 126 47 75 . 1 4 , 620 

Septeabe r ...................... ...• .... . ... 2 , 442 ~20 24 81. 4 4 , 840 

lat er year 1940- 41 .......... .... ......... 396 ,483 7 , 800 u 1 , 086 786 500 

a No gage -he i ght r ecord.; c1hoharge interpolated. 
30 NECHES RIVE:R BASIN 

Neches River near Diboll, Tex . 

Location.- litre-weight gage, lat. 31°08 ', long . 94°48 ', at bridge on State Hi ghway 35, 

1!3o teet downstream rrom Texas and New Orleans Railroad bridge, 2.8 miles downstream rrom Alabama Creek , and 3 .8 miles south or Diboll, Angelina County. Datum or gage ts 134.46 reet above mean sea level, datum or 1029. 

Drainage area .- 2,670 square miles. 

Records available .- November 1923 to August 1925, March 1939 to September 1941. 

E:xtremes.- Maximum discharge observed during year, 22 , 800 second-feet Nov. 28 {gage height, 16 .53 reet); minimum observed , 45 second-reet Oct. 27, 28. 

1923-25 , 1939--41: Maximum discharge observed, that or Nov . 28, 1940 ; no now Aug. 15-22, 1925 . Maximum stage known, 21.5 ree t ln May 1884 , acco rding to Information rurntshed by local residents . 

Remarks.- Records good . Gage read twice dally , oftener during high stages. No l arge -----aT\iers!on above station. 

Discharge . in second-teet, water year October 1940 to September 1941 

Da Oot . Nov . Dec . Jan . Feb . Ma r. Apr . Way June July Aug . Sept. 

1 84 191 16,800 6, 260 3,240 5 ,620 3,040 1,780 676 5,500 ~0 134 

2 78 148 13,500 6 , 130 4,280 5,170 2 , 800 1, 53 0 828 5 , 740 420 135 

3 75 121 10 ,600 6 , 130 4,520 4,870 2 , 740 1,380 780 5 , 860 376 138 

4 71 111 8,900 6, 260 4,280 4,600 2 , 740 1 , 350 69 2 4,960 320 141 

5 66 121 8 ,100 6,550 4,040 4 , <40 2, 500 4 , 050 630 4. 600 304 144 

6 66 180 7 , 900 6, 550 3,730 4,360 2,300 7,180 718 4,120 280 1~2 

7 73 166 8 ,300 6,550 3 , 590 6, 260 2 , 220 6 , 260 1,950 3 , 730 280 127 

8 81 162 8 , 500 7,000 3 , 380 7 , 900 2 , 070 4 , 120 2,070 380 244 122 

9 ~ 162 8,100 7,180 100 7,700 2,000 3 , 040 2 , 070 2, 800 265 110 

10 81 237 7,180 7 ,350 2 , 920 7 , 180 1,940 2,620 1,880 2,560 258 93 

11 78 180 6 , 700 6,850 2 , 900 6 , 130 1,940 2 ,680 4 , 600 2 ,620 251 95 

12 75 180 9 ,900 6,260 2,680 6,130 1,940 2,800 9,900 2,800 288 108 

13 70 204 14 . 600 5,860 2,500 6 , 000 1,880 2 , 920 7 ,700 2 , 620 265 134 

14 65 237 14,200 5,660 2 , 350 5 , 860 1 , 940 2 ,860 5 , 280 2 , 860 24 4 133 

15 60 265 11,200 6,130 2 , 220 5 ,500 1,940 2 , 740 3,960 2 , 980 224 1~4 

16 56 280 10 , 200 6,260 2 ,140 5,170 1,940 2,500 a ; o 4o 2 , 74 0 204 127 

17 53 272 8 , 900 6,260 2,000 4,960 1, 940 2,300 2 ,6 20 2, 980 192 123 

18 51 265 7 , 700 6 , 000 1 ,940 4,690 1,940 2 , 070 2,300 3 ,100 180 124 

19 50 251 7 , 000 5,500 1,880 4,440 1 , 940 2 , 000 2,070 2 , 800 168 115 

20 5 0 237 6 , 700 5,170 3 ,640 5 , 060 2 , 000 1,~0 2 ,070 2 , 740 154 107 

21 50 237 6 , 550 4,960 5 , 740 6,130 2 , 000 2 , 220 2 , 680 2,560 146 108 

22 50 244 6,260 4,670 5 , 740 6,130 2 , 070 2 , 070 3 , 730 2 ,4 00 143 107 23 49 liOl 8,000 4 , 600 0,000 6 , 000 2 ,220 1, 740 4,440 2 , 220 134 82 

24 48 3,660 5 , 500 6, 550 6,700 6,000 3 ,590 1,620 5 ,380 2,000 90 779 

25 48 14 '700 5 , 060 7 , 350 7,000 5 , 620 4 , 040 1 , 590 5 , 740 1,700 126 ~50 

26 47 20 ,400 6,000 6,550 6 , 850 5 , 170 4,04 0 1,560 5,620 1,530 168 1 , 120 27 45 22,000 7 , 700 5 , 620 6,550 4,780 2, 400 1 , 530 5 , 170 1,290 186 1, 260 

28 45 22, 800 8 , 900 5 ,380 6 , 000 4, 280 2,000 1 ,410 4 , 780 1,120 180 996 

29 47 22 ,000 8 , 500 4,280 - 4,04 0 1 , 800 1,350 4,600 94 8 154 610 30 54 20 , 000 7 , 700 3,730 - 3 ,660 2 , 000 1 . 290 4,780 780 1M 420 31 58 - 6,850 3,450 - 3,380 - 1,020 - 630 134 -

Month Second- Maximum Minimum Wean Runott in toot-days acre-teet 

October . . .. . .. .. . ·· ··· ······· ····· ········· 1 , 907 84 45 61. 5 790 

November . . ..... . . . .... .. . ...... . • .. •.... . . . 130 5~2 22, 800 111 4,351 258, 900 December .. . . .... .... ...... •0 ••• • • 4 •0 0oooo o o 270, 000 16 , 800 5 , 060 8,710 535 , 500 

-- --- -- ------ ------ --- - -- -- ---- Calendar year 1940 ···• ·· · ·············· · 695,911 22, 800 4 5 1 , 901 1 , 380 ,000 

------- ----- - - - ---- -- --- - ------ January . . . .. . .. ..... ..... . o • · o ······ · ·· ··· · 183 , 4 50 7,350 3,450 5 , 918 363, 900 

February . .. ... . ..... .. .. .. .. ··· ···· ·· · · · ··· 111 , 810 7,000 1,880 3 , 993 221 , 800 

March . . ... .. . . . • . ...... .. . . .. o . . • ..• • .. . .. . 167. 230 7 , 900 3,380 5 , 395 ~31 700 

April . . . . . .. • ..•. .•.. , ........ ... .. . . .. . .. . 69 , 990 4, 040 1,880 2, 333 138, 000 Way . . . ... . ...... . .... . .. . .. . . . ... . .... . . .. . 75 , 410 7 , 1 80 1,020 2,433 149,600 June . . .. . . ... .. ..... .... .... .. ...... .... . .. 102,954 9 ,900 630 3 , 432 204. 200 J uly . . ....... . .•.. • .. , . .. . . . •O •• • O •••• · · · .. 88, 668 5 , 860 630 2, 860 175, 900 August .. .. . . . · ·· · ··· ..... ·• • ·o . .... ... .. . .. 7,042 530 90 227 13, 970 September . . ..... . . . . . . . . . . . . . . . ·• •• O •• · ·· .. 9 ,308 1 , 350 82 310 18, 460 

Water year 1940 - 41 ····· ····· ····· ·· ··· .. 1 , 218, 301 22,800 45 ~8 2,417 , 000 
NE:CHES RIVER BASIN 31 

Neches Rive r near Rockland , Tex. 

Location.- Staff gage, lat. 31°01'45", long. 94°23 ' 50", quarter ot a mile upstream !rom 

bridge on U. S. Hlghway 69 , half a mile upstrea'll from Texas & New Orleans Railroad 

b ridge , 1 mile north of Rockland, Tyler County , and 3t miles downstream from Blllams 

Creek. Datum or gage Is 91 .4 feet above mean sea level, datum or 1929 . 

Drainage area.- 3,539 square miles . 

Records available.- July 1903 to September 1941. July 1903 to September 1923, monthly 

recol'ds onlY, t n Water-Supply Paper 850 . U. S. Weather Bureau has collected gage- height records tn this vicinity since 1903 . 

Average discharge.- 35 years (1903-10 , 1913-41), 2,346 second- teet. 

E:xtremes.- Maximum discharge during year, 25,900 second-teet Nov. 30 (gage height, 25.50 tee t , !rom graph based on gage readings); minimum observed, 55 second-feet Oct. 26, 26. 

1903-41: Maximum d ischarge ob~erved , 48,500 second-teet Apr. 2 , 1922, and May 22 , 1935 (gage he i ght, 26.90 teet), !rom rating curve extended above 36,000 second-teet; minimum obse rved during periods o! dally records, 1923-40, 3.0 second-feet Oct. 15, 1931. 

Maximum stage known , 34. 9 teet In May 1864, according to ln!onnatlon fUrnished by 

local resident. 

Rema rks.- Records good . Gage read twice da lly, oftener during high water. No diversion 

---aJ5liVe stat I on . 

Discharge , in second-feet . water year October 1940 t o September 19 .U 

Da.l Oct . Nov . Dec. Jan. Feb . War. Apr . May June July Aug . Sept . 

1 149 159 24 , 800 11,500 7 ,680 9 ,44.0 5, 720 4,680 2 ,22 0 5 , 020 854 200 2 140 109 22 , 800 11,000 

~::~~ 9,-140 5 ,130 4,160 1,860 4, 730 698 268 3 128 180 20 , 900 10, 300 8,550 4, 850 3 , 830 1 , 560 4, 560 586 388 4 114 211 18,300 9 , 670 7,480 7,820 4, 500 3 ,660 1 , 320 4,560 550 317 5 108 222 16, 700 9 , 000 7, 200 7, 200 4,000 4 , 500 1 , 100 4, 850 482 256 

6 101 233 13 , 900 8 , 260 6 ,8'70 6 , 9 40 3,7?0 5 , 900 1,760 4, 850 482 233 7 95 211 12, 300 7 , 890 6 , 940 7,550 3 , 550 7,550 3 , 500 4, 790 482 2 44 8 87 256 11, 800 7 , 680 

~ 7,750 3 ,330 9 , 290 4, 050 4, 560 550 U4 9 90 317 11,100 7, 480 8 ,400 3,110 10, 500 4,450 4 , 280 482 244 10 103 418 10, 500 7,340 5 , 660 8,770 2 ,900 10,500 5 ,070 3 , 9 40 450 268 

ll 1ll 450 10,100 7 , 270 5 ,190 9 ,140 2,630 9,670 8 , 370 3 ,720 418 344 12 109 us ll, 700 7,140 4,730 9 , 370 2 ,480 8,630 8 , 110 3 , 600 450 233 13 108 358 1 4, 900 7, 270 4 , 220 9 , 44.0 2 , 420 7 , 270 9 , 140 3 ,660 418 190 14 101 344 19 ,100 7,550 ~: 9 , 140 2,320 5 ,840 9 , 990 3 ,?70 373 200 15 95 358 22 , 800 8 , 180 8 , 400 2 , 270 4, 680 10, 500 4,220 358 233 

16 85 3 44 23 ,300 8 , 920 3 , 000 7 , 750 2 , 270 3 , 7?0 10,500 4,160 344 292 17 79 344 20,000 9 ,0'70 u~g 7,200 2 , 220 3 ,220 9 , 990 3 , 770 317 373 18 71 358 17 , 000 9 , 000 6 , 800 2 , 220 2 , 950 9 , 000 3 , 600 280 358 19 67 344 15, 200 8 , 630 ~:g 6 , 600 2 ,160 2 , 690 7 , 820 3 ,280 256 330 20 6 4 330 13,600 7 , 960 6 ,730 2 , 160 2 ,690 6 , 600 3 ,110 256 330 

21 62 304 12 ,700 ? , UO 3,330 7 , 140 2 , 160 3,110 5 , 360 3 , 160 244 256 22 60 292 11 , 600 7 , 200 4, ~~ 7 , 480 2 , 220 3,160 4 , 220 3 , 330 222 233 23 60 822 10, 600 7 , 140 4, m 7 , 680 2 , 700 2 , 950 3 ,800 3,380 233 334 24 60 7,130 9 , 670 7,000 ~?C 7 ,750 3 , 880 2 , 790 3 , 770 3 , 060 292 2 ,650 25 57 12 ,000 9 , 070 6 , 870 7,?50 4, 620 2 , 690 3 , 830 2 ,740 233 2 , 690 

26 55 15,100 9 ,370 7 , 550 

~ 7,680 5 , 130 2 , 530 4,050 2 , 630 190 2 ,580 27 57 19 , 100 10, 300 8 , 260 7 , 550 5 ,420 2,060 4,450 2 ,480 200 2 ,270 28 55 23 , 300 11,600 8 , 770 9 , 670 7,410 5 ,480 2 ,060 5 , 080 1,960 268 2 ,060 29 66 25 , 300 11 , 900 8 , 920 - 7 ,140 5 , 480 2 , 480 5 , 130 1 , 610 292 2 ,010 30 63 25,900 12,000 8,850 - 6 , 670 5 , 190 2 ,580 5 , 130 1 , 280 268 1 ,810 31 88 - 11 ,800 8,480 - 6 , 220 - 2 ,420 - 1 , 060 233 -

Mon th Second- Yaximua Min i mum Mean Runott i.n toot-days acre-teet 

October ............ . . . ... . . . . . . . . . . . . . . . . . . 2 , 688 149 55 86 . 7 5,:530 Novembe r ....... . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1:55,212 25,900 109 4, 507 268,200 December .... . .. · · · ···· . .. . . . . . . . .. . .... .. .. 451,410 24, 800 9 ,070 14, 660 895 ,400 

-- --- -- - -- - -- ------ ------ ------ Calendar year 1940 . .. . . ... ...... . ....... 1 ,078, 985 25 , 900 55 2 ,9 48 2 ,140, 000 ------- ------ ------ January . . . . . ......... .. . . · .. . · ··· ···· · · ·· ·· 257 , 560 11, 500 6 , 8?0 8 , 308 510,900 February ........... .... . . ... . . .. .. ... . .... . 157 , 780 9 , 670 2 , 580 5 , 635 :513 ,000 llaroh . . . ......... •..... , . , . .. .... ...... . .. . 242 , 600 9 ,4-40 6 , 220 7 , 826 481 , 200 Ap ril. .. .. .... • .. , . ..... . , .. • ... . . . .•. . . ... 106 , 290 5 , 720 2 ,160 :5 , 543 210 , 800 May .... . .. ...... . ............ ... . . ...... . .. 144,810 10,500 2 , 060 4 , 671 287,200 June ... . . . . . ... ..•.. , .. .....•... .... .. . . .. . 1 61 , 810 10, 500 1 ,100 5 ,:594 :520, 900 July ... ... . ... • •.••.•.••.••. • .• • .••. • ..•... 109,720 5 ,020 1 , 060 :5 , 5:59 2 17, 600 August .. .. .. .. ... ...... .. •..... . ... . • . ... . . 11,761 85 4 190 379 23, :5:50 Septembor .. ... .... ....... .. ...... .. .. .... .. 22 , 438 2 , 690 190 748 44, 510 

Water year 1940- 41 .. . ..•. . ..••. •.... . .. . 1,804, 079 25 , 900 55 4, 943 3 , 578, 000 
32 NECHES RI VER BABIN 

Neches Rl ver at Evadale, Tex . 

Location.- Starr gage , lat. 30°21', long. 94°05' at bridge on U. s. Highway 59, 200 

teet upstream from Oul! 1 Colorado & Santa F'e Rallway bridge at Evadale, Jaspe r CountY, and 15 mlles upst:ream rrom V11lage Creek. Datum ot gage ls 8 .3 reet above mean sea level, datum or 1929 (levels by Corps or Engineers, U. s. Army ) . 

Drainage area.- 7 , 909 square miles. 

Records svallable.- July 1904 to December 1906, October 1923 to September 1941. 

Average discharge. 20 years (1904-6 , 1923-41), 6,165 second-teet. 

Extremes.- Maximum discharge observed during year, 59 , 600 second-teet Dec. 5, 6 (gage ne!ght, 20. 78 ·!eet) ; m1nlmum observed , 340 second-teet Oct. 25-28 , 30. 

1904-06, 1923-41: Maximum discharge, 83 , 800 second-teet June 1, 1929 (gage he i ght , 22.20 reet , observed at crest); mlnlmum observed , about 148 second-teet Sept. 10, 1925 . 

Maximum stage known, 26.2 reet ln 1884 , (discharge , about 175,000 second-t eet, rrom rating curve extended above 72,000 second-teet by logarl thmlc plotting) ! rom records or Oul! , Colorado & Sante F'e Rallway Co. 

Remarks .- Records good. No diversion above stati on. Gage read twice dally . 

Dis charge in s econd-tee t water year Oc t ober 1940 to Septea.be r 194.1. 

DOJ Oct. Nov . Oeo . J an . Feb . Wa r . Apr . llay June J ul y AU&. Sept. 

1 ooo 582 ~0 200 27 , 800 15, 700 

i~ ?~ 18,100 10, 900 11 , 600 9, :520 4 , 260 1 , 150 2 772 1 , 400 38, 100 27,800 15 , 700 17, 100 10, 900 H ,900 9 , 320 3 ,690 1 , 120 3 716 1 , 940 48 , 800 29 , 400 15 , 700 16, 600 16 , 600 10 , 900 11 , 600 9 , 080 2 , 930 1,090 4 660 1 , 640 55 , 300 31,000 15, 300 17, 600 15,300 10 , 300 10,600 8 , 8 40 2 , 650 1, 220 5 6oa 1 , 290 59 , 600 31, 800 15, 700 18, 100 13, SOO 10 ,300 8 , 200 6 , 200 2 , 2 00 1 , 670 

6 582 1 , 090 59 , 600 32 , 600 15 , 700 18, 600 12 , 200 10, 800 6 , 020 7 , 800 2 , 0 20 1 , 670 7 558 1 , 150 58,500 31 , 800 16 , 600 19, 200 11, 100 11,900 6 ,280 7 , 400 1,900 1 , 600 8 534 1,500 56, 500 30,200 16,600 19 , 200 10,100 13 ,800 6 , 500 7 ,600 1 , 860 1 , 260 9 510 1 , 360 55 , 300 29, 400 16 , 600 18, 600 9 , 320 1 4 , 900 7,800 7,600 1 , 980 1 , 190 10 486 1 , 430 51, 000 27, 000 16, 200 18, 600 8 , 400 1~ 00 8 , 820 7 , 220 2 , 110 1 , 220 

ll 464 1 , 820 46 , 700 25 , 400 15, 700 18, 600 8 , 200 1 6 , 600 9 , 560 6 , 860 2 , 110 1 , 260 12 442 2 , 870 4:5 , 500 24, 000 15, 300 18, 600 7, 600 17 , 600 11, 600 7 , 220 1 ,980 1,400 13 442 3 , 560 49, 900 22 , 800 14, 1 00 18 , 600 7, 0 40 1 8 , 600 12, 800 8 , 840 1 , 860 1 ,500 14 420 3,420 46,700 22 , 000 13, 400 18, 600 8 ,680 19 , 700 14,100 8 , 620 1 , 780 1 ,400 1~ 420 2 , 600 46 , 700 21 , 400 12 , 200 18 , 600 6 , 3 -'0 20, 800 15 , 300 8 , 000 1 ,710 1 , 220 

16 420 2 , 020 47, 800 22 , 000 11,100 18 , 600 8 , 100 20 , 800 16 , 200 7 , 220 1,640 1,150 17 420 1 , 700 45 , 600 22 , 000 10, 100 18, 600 6 , 020 20, 800 17, 100 7, 220 1 , 570 1 , 190 18 400 1 , 600 44 , 600 20, 800 9 , oao 18, 600 6,180 19, 700 17,600 7 , 800 1 , 460 1 , 260 19 400 1 , 540 45 , 600 20 , 800 8 , 200 18, 600 8 , 340 17 , 600 18 , 800 S , 200 1 ,430 1 , 360 20 300 1 ,400 47,800 20,800 7 , 600 20 , 200 8 , 600 14, 100 19,200 8 , 200 1,400 1,290 

21 s ao 1 , 290 47,800 20 , 800 7, 220 21 , 400 6 , 600 11, 600 1 9 , 700 7 , 600 ,~0 1 , 1QO 22 300 1, 260 46 , 700 20 , 800 7 , 800 20, 800 8 ,880 9 ,080 19 , 200 7 , 220 1 , 280 1, 120 23 360 1 , 220 43, 500 20,200 9 , 080 20,200 7 , 040 8,600 18, 600 7 , 0 40 1 ,160 958 24 360 2,330 40, 300 19 , 7'00 10, 900 1 9, 700 7 , 220 7 , 800 17 , 100 7 , 040 1 ,090 1,700 25 340 7 ,160 38, 100 19 , 200 11 , 900 19 , 200 7 , 600 7 ,600 1 6 ,300 6 ,680 1.060 2 , 870 

26 340 13, 500 36, 000 18, 600 12, 800 18,600 8 ,620 7 ,400 1 3 , .00 6 , 500 1,050 6, 120 27 340 20, 200 33 ,400 17 , 600 13, 400 18, 600 9 , 660 7 , 800 11,600 6 ,020 l,OQO 7 , 220 28 340 22 , 600 31,000 17, 600 14, 500 18 , 600 10, 300 8 , 8 40 10 , 100 5 , 880 1 ,050 7 , 040 29 360 2 4, 700 29 , 600 16 , 600 - 18 , 600 10,900 9 , 820 9 , 320 5 , 860 1 , 150 6 , 020 30 340 27 , 000 27 , 800 16 , 200 - 18 ,100 10 , 900 10 , 300 9, 320 5 , 660 1, 260 5 ,180 31 400 - 27 ,ooo 16 , 200 - 18, 100 - 11,100 - 5 ,040 1 , 220 -

Month Second- llaxi11um un aUII lie an Runott in toot-days ac re-t eet 

Oc t ober . .... . . . .. . . .. . ... . .... . ..... ....... 14, 374 800 340 464 28, 510 Noveabe r ... . . . . . ... ...... . ......•.......... 157 , 242 27 , 000 582 5 , 241 311, 900 Oeoea.ber . ........ . .... . . . .. .... . • . .• ... . . . . 1 , 390, 800 59 , 600 27 , 000 44 , 540 -- ----- - .?::9 ~ 

Calendar year 1940 . . . .. •.. • .. . . . .. •. .• .. 3 ,129 , 962 -- ~9!6~ 340 8 , 562 ------- ------ - ~<:_8 ~ 

January ........ .. ...... .. . ... . ... .. . ...... . 72 4,100 32 , 600 16 , 200 23 , 360 1 , 436 , 000 February .... .... ....... . .. • .. • . .. . . .. • . .• .. 36 4, 180 16 , 600 7 , 220 13, 010 722, 300 lila rob .. .. .... . .•.. o • •••• •• •• • •• •••• • • • •• • •• 576 , 600 21 , 400 14, 900 18, 600 1 ,1.4, 000 Apri l .. . .. . .. ..•. . ~ .. . . ... .. . o • • o •••••• •••• 28., 780 18, 100 6 , 020 9, 493 56 4,900 llay ...... ...• • .• •.•. .•.••.• •. • •.• •. ... . . • . . 405 , 840 20, 800 7 , 400 13 , 090 805 , 000 J une ....... ... . • . .• ... . o· •••••• • •• •• • . • . • . • 383 , 620 19 , 700 5 , 260 12 , 790 760, 900 J uly ......... .. ••.• . .•.. . . .• .• .. •. .. . •..•.. 230 , 580 9 , 320 5 , 0 40 7 , 438 467 , 300 August ... . ... . ... .. .. .. ... .. . o • • o •• •• • • . •• • 55 , 020 4, 260 1 , 050 1, 775 109, 100 September .. ...... ..... .. .. .. .. .. ...... . . . . . 64, 216 7, 220 956 2 ,141 127 , 400 

Wat e r year 1940- 41 ... . .. • ..• . . .. •. . . .. .. 4 , 6 41 , 352 59 , 600 340 12 720 9 206 000 
NECHES RIVER BASIN 

Mud Creek near Jacksonville, Tex. 

Location.- Wate!"-stage recorder, lat. 31°58'40', long . 95°09'40', at bridge on U. S. 

Highway 79, 5 miles downstream !rom Interne.tlonal-Oreat Northern Rallroad bridge and 6.9 mllee east ot Jacksonville, Cherokee County. De.twn ot gage is 271.6 teet above mean sea level, datwn ot 1929. 

Drainage area.- 382 square mlles . 

Records available.- May 1939 to September 1941 . 

Extremes .- Maximwn discharge during year, 14,200 second-teet Nov. 23 (gage height, 12.50 

teet); minimum, 1.2 second-teet Oct. 28 . 1939-41: Maximwn discharge, that or Nov. 23, 1940; no tlow at times. 

Maximum stage known occurred in May 1884, accord ing to intonnation tumiehed by local residents. 

RemarkS.- Recorda good except those ! or periods or no gage-height record, which are ---poor. No large diversion above station. 

Diaoharga , in aeoond-teet , water year October 1940 to September 1941 

Da Oot . Nov . Oeo . Jan. Feb. War . Apr. May Juno July Aug . Sept. 

1 17 169 898 1,140 299 866 a27'7 207 87 196 24 27 2 16 98 747 1 , 270 692 716 a257 211 84 167 21 23 3 13 92 606 887 635 663 a2,020 220 121 87 18 20 4 11 101 483 768 621 418 1,510 207 1M 64 15 21 6 9.3 96 386 676 646 346 966 264 176 56 16 26 

6 8 . 3 62 324 597 671 470 832 604 152 54 21 23 7 7.8 43 441 621 546 1,280 580 138 48 29 16 8 8·1 36 768 461 455 1 , 070 455 168 40 33 H 9 7.4 35 778 386 564 1 , 170 439 220 56 32 14 10 6 . 8 46 1 , 160 538 324 1,260 4.35 277 32 31 17 

ll 8.3 54 1,220 518 294 1 , 000 404 348 38 29 29 12 10 74 1,590 306 267 854 312 401 279 23 52 13 8 . 1 95 1,200 294 262 768 229 364 376 18 42 14 e.g 110 989 600 234 571 a260 203 324 324 15 30 15 s.8 107 1 , 710 726 220 421 168 311 417 13 25 

16 6·1 84 2,540 580 211 364 134 282 563 11 21 17 ,.6 62 2,070 626 203 331 112 306 416 17 19 18 s.8 60 1,950 666 196 318 99 338 266 16 18 19 3.4 47 1.,460 625 202 3H 93 398 142 11 17 20 3 .2 48 lf020 505 481 354 87 505 96 8 . 6 15 

21 2.8 45 810 404 597 338 84 580 81 6.9 12 22 2 . 6 127 675 331 see 311 195 81 448 69 5 .9 9.1 23 2.1 9,060 6 46 299 778 3el 211 76 237 58 10 7. 4 24 1·8 12,400 459 421 1,720 655 281 68 144 50 86 35 25 1.8 10,000 374 463 1,380 563 288 62 106 44 162 255 

26 1.8 s,Ggo 625 625 1,160 6J.5 272 60 8• 38 176 3H 'l7 1.4 3,550 1,860 625 1 ,110 635 294 61 76 43 123 311 28 1.3 2 , 380 2,070 521 989 597 311 60 114 52 50 338 29 1.7 1,620 2,780 457 - 463 263 65 148 44 34 374 30 1.7 1,140 2,070 398 - 366 207 77 179 37 31 398 31 53 - 1,260 331 - 311 - 87 - 31 30 -

llonth Second- Wa.ximu.m Minimum lie an Runorr in toot-days ac:re-roet 

Ootober .......... .. ....... ........ ........ 233.8 53 1.3 7.54 454 November . .... . . .. .. ............... ···•····· 47,508 1 2 ,400 35 1 , 584 94,230 December . . . . . . . . . . . . .............. . . . . . . . . . ___ 35,858 ... ___ 2 , 780 324 1,157 71,1.20 

------ ------ ------ ------ Calendar Year 1940 ...................... 106,1?5 . 7 12,400 0 290 210,600 

------- ------ ------ ------ ------ January ................... . .....•.......... 17,141 1,270 294 553 :54,000 

February . .... • .......•..•.... . ············· 15 , 7~4 1,720 195 562 31, 210 March ..... , ..... , ..•....•............... • .. 18, 605 1.,280 311 600 36,900 April ............... ···· ············· ..... 11,934 - - 398 23,670 

May .... ................... ...... ..... ...... 6,133 580 60 198 12,160 June ... , ............ ····· .... .. ... ..... .... 7,269 580 76 242 14,420 July .................... . ............... ... 4,242 563 31 137 8,410 Aur;uet ........ ......... .................... 1,117.4 176 e.g 36.0 2,220 September . . ... ...................... . . 2,682 . 5 398 7.4 86 . 1 6,120 

Water year 19-i0-41 .... ............... .. . 168,M>7.7 12 400 J..3 461 333 900 

a No gage-Might record.J discharge computed. on ba-ela or recorded. range 1n at age, engineer te note a, and weather records. 
NECHES RIVER BAS IN 

Angelina River near A1to, Tex. 

Location.- Chaln gage , lat. 31 °40 ', long. 94°56 ', on bridge on State Hi ghway 21, 3 mlles 

upstream rrom Singham c reek , and 7 miles east or Alto , Cherokee County . Datum or gage is 204.3 reet above mean sea level; datum or 1929 . 

Drainage area.- 1, 261 square mlles. 

Records available .- September 1940 to September 1941. May to August 1940 (discharge measurements only) . 

Extremes.- 1940-41: Max i mum discharge not detennined ; minimum observed , 15 second-teet oct. 25- 26 . 

Remarks.- Records !air except those !or periods or no gage-helght record , which are poor . ---nTScliarge above 2, 200 second-!eet no t computed because or inde!ini te stage-discharge relation . Gage read twice dally. No l arge diversion above station. 

Discharge , 1n second- root , 1940- 41 

1940 

Date Discharge Dato D1sohargo Dato 

11$y 9 *245 J\lno 25 <0379 Sept. 26 

19 •134. J\l.ly 21 *473 27 

J\lnO~ • 1,180 Aug. 19 0251 2B 

4 •1 , 050 Sept . 2~ •52 29 

5 *7B4 2 4 74 ~ 

6 •514 25 94 

* Discharge measurement. 1940- 41 

Da Oct . Nov. Dec. Jan . Feb. Mar. Apr . llay June 

1 B9 .~9 - - 1, ~ - 1,~ 89~ ~68 

2 B9 aB4 - - 2 ,040 - 1,350 BOB ~6B 

3 74 206 - - 1,B40 - 1,310 776 ~6B 

4 64 ~42 - - 1 ,720 - 1, 200 760 ~42 

5 5 4 ~94 - - 1,670 - 1 ,390 1,090 ~29 

6 47 ~1 - - 1,700 - - 1 , 240 ~42 

7 H ~42 - - 1,780 - - 1,240 407 B 39 ~29 - - 1,810 - - 1,370 516 9 ~5 16 1 , 930 - 1,780 - - - 635 10 31 290 1,670 - 1 , 720 - - - 712 

11 ~ 241 1, 5 40 - 1,620 - - - 1.~ 

12 ~0 241 1 , 720 - 1,520 - - - 0~0 

13 ~ 200 - 1,B40 1,410 - 1,720 - 1 ,070 14 2B ~42 - - 1 , 290 - 00 - 1 , 090 15 27 ~16 - 2 ,040 1.,180 - 1,140 - 1 ,110 

16 25 200 - 1 , 840 1,070 - 944 1 ,620 1,310 17 25 a265 - 1,840 960 - BOB 1, 270 1 , 390 18 25 a265 - 1,930 B9~ - 72B 99B 1 , 270 19 21 a265 - - B76 - 712 744 1,220 20 21 a277 - - 1,350 1,840 7H 620 1,240 

21 20 a277 - - 1,520 1,670 744 1 , 090 1 , 260 22 18 - - 2 , 110 1,620 1,520 760 1 ,070 1 , 260 23 17 - - 1 , 880 1,810 1,450 776 792 1,220 24 17 - - 1,860 - 1,(50 BOB 560 1,18 0 25 15 - - 1 , 700 - 1,~ BOB 446 1,140 

26 15 - - 1,540 - 1,4.10 806 3B1 1 ,050 27 15 - - 1,460 - 1 , 410 825 ~42 876 28 15 - - 1,460 - 1 ,450 B76 ~16 792 29 20 - - 1, 570 - 1,500 927 ~42 72B 30 21 - - 1,720 - 1 , 520 910 ~42 712 31 a24 - - 1 ,880 - 1 , 500 - ~55 -

l'1.ontb1y discharge, 1n eecond- toet, 194o-41 

Wontb 

September 24 -30, 194.0. 

Water year 

October 194.0 . .. ........... . .... .. . . . . 

November 1 -21 . ......... . • . .. .. .. .. . •...... December . 

Calendar year 

January 1941 . ... . •... .. .. . February 1- 23 ... ...... . ....... .. . . Ma rch 20-31 ... ... . . ...... . . . ......... ... . April .... . . .. .....•. .. . . .. . ..• . . . ....•.. May. . . .. . . . .....•.. . .... . . . . . . . .... .. .... June . ..... . .. . ... . . . .......... . .. ........ . July .... . August . ............. . . . ...... . September . 

Water year 19 40- 41 . ... . ....... .. .... . 

Second- root-days 

7~3 

1 , 025 5 ,792 

35 ,129 

18,150 

26 ,365 20,574 

5 ,360 6 ,370 

llaxiaua 

129 

89 

~94 

2 ,040 

1,B40 

1 , 390 1,620 3~ 

1,020 

Winiaua 

74 

15 

1,540 

1,450 

876 1,4·10 

712 

316 

~29 

195 

89 

79 

Disoh&rgo 

114 

1211 

124 

104 

9 4 

July Au.g. Sept . 

696 

660 

605 

474 

420 

~6B 

277 

241 

217 

195 

196 

446 

600 

B9~ 

1,220 

1 , 270 1 , 450 1 , 620 1,620 

1,500 

1,~10 

~ 

712 

407 

290 

241 

~55 

277 

~42 

290 

253 

Moan 

105 

~~.1 

276 

1, 527 1 , 512 

B79 

664 

17~ 

2 12 

241 140 241 124 229 104 184 ~4 

l51 195 

140 162 140 129 173 119 206 

265 161 ~· 

~0~ 

265 124 ~· 206 1~4 

17~ 129 

151 140 

1~4 161 1~4 140 119 124 109 109 99 99 

94 94 89 84 104 79 

114 84 124 265 

151 ~0~ 

1n 446 184 575 

217 744 

2 41 1,020 206 -

Runott in acre-teet 

1,450 

~0 

11 , 490 

69 ,660 36 , 000. 

52 , 200 40 , 810 10,6~ 

12 , 630 
NECHES RIVER BABIN 35 

Angelina River near Lufkin, Tex. 

Location .- Wa ter-stage recorder, lat. 31°27'40', long. 94°43 ' 35", at bridge on State 

Hi ghway .35 , 400 teet upstrea'll !rom Procella Creek, hal! a mile downstream !rom 

Ll ttle Loco Bayou, 1.5 m1les upstream ! rom bridge or Texas and New Orleans Ra1lroad, 

and 8 mlles north or Lu!kln, Angelina County. Datum or gage Is 164.72 teet above mean sea level, datum of 1929. 

Drainage area.- 1 , 575 s quare m1les. 

Records avallabl e .- October 1923 to Septembe r 1934, Jul y 1939 to Septembe r l94l. 

Average discharge.- l3 years, 1, 273 second-tee t. 

Extremes.- Maximum discharge during year, 31,300 second-teet Nov. 28 {gage height, 17 .97 t ee t); minimum, 37 second-tee t Oct. 25-27. 

1923-34, l939-4l: Maximum discharge, 38,200 second-teet Feb. 24, 1932; maximum gage he i ght, that or Nov. 28, 1940; minimum dis charge, 2.3 second-tee t Oct. 12, 1939 . Maximum stage known, about 26. 5 tee t In May 1884, according to Information fur- nished by local residents. 

RemarkS.- Records good excep t those f or period or no gage-height record, which are poor. 

---,;ro-Qfverslon above station. 

Discharge , in second-teet. water year October 1940 to September 1941 

Da Ocl . Nov . Dec. Jan . F'eb . War . Apr . llay June Ju ly Aug . Sepl . 

l 120 172 17,600 5,420 3 , (10 1,950 1 , 060 oiB6 990 361 237 

2 107 136 13,000 '7,610 3 , 800 1,950 1,140 475 842 316 206 3 101 140 9,670 9,370 4,240 1,950 1,080 464 772 292 172 4 95 154 7,870 9 . 070 .,340 1 , 950 1 , 010 <.;1 702 284 1H 5 90 206 6,830 8 , 470 4,.240 1 , 910 1,300 420 615 262 154 

6 80 300 5 , 760 8 , 170 2,360 4 , 240 1 , 800 1,520 431 530 2ll'1 162 7 70 351 5,090 7,610 .,980 1,760 1,760 685 475 250 186 8 61 351 4, 660 6,830 4 , 870 1 , 870 1 , 800 931 409 300 172 9 57 342 4, 140 6,110 4, 550 2 , 250 1,720 1 , 010 333 342 158 10 53 360 3 , 800 5 , 090 3 , 960 2 ,660 1 , 620 979 . 292 308 186 

ll 50 369 3 , 720 4, 440 2 , 250 3 , 560 3 ,200 1 , 690 2 , 53o I 284 292 206 12 49 342 5,200 3 , 960 2,250 :s,uo 3,480 1 , 870 2 ,540 440 316 191 13 47 292 5 , -'20 3,640 2,250 3 , 800 :s,.uo 2,120 1,950 856 308 167 14 46 269 5 , 200 3 , 640 2 , 160 4,340 3 ,130 2 , 340 1 , 580 1 , 250 276 154 15 46 292 4,660 3,560 2 , 030 4 , 550 2 ,720 2,540 1,340 1,830 262 154 

16 45 324 4,440 3 , 340 1,910 4, 440 2,440 2 ,720 1,550 2 ,440 221 158 17 44 316 4, 050 3 , 200 1 , 720 4, 140 1,090 2 , 660 1,720 2 ,300 196 162 18 43 300 4,1-'0 2 , 850 1,550 3 , 800 1,520 2,440 1,800 1 , 870 176 162 19 il 292 4, 2 40 1 , 460 3,560 1 , 210 2 ,070 1 , 830 1,660 I 167 158 20 il 292 4, 870 2 , '780 3 , 720 1,010 1,660 1 , 690 1,660 158 140 

21 40 292 5 , 760 3 ,4.10 3,720 950 1 , 310 1,550 1,690 140 124 22 39 28 4 6,110 3 , 720 3 , 340 950 1, 140 1,490 1,660 128 110 23 39 5 , 650 5 , 880 3,340 3 , 060 990 1 , 260 1,460 1,550 I 128 98 24 38 11,400 5 , 540 3,410 2 ,780 u:g 1 1,260 1 , 430 1 , 310 144 440 25 37 15,400 5 , 420 a2,360 3 , tl0 2,540 990 1 ,400 924 172 808 

26 37 11,800 5,880 3 , 560 2 , 340 1 , 140 720 1,340 ses l 181 1,010 27 37 21 , 000 '7,090 3,480 2,200 1,040 556 1 ,340 

530 I 167 895 28 39 30,200 7,090 3 , 340 2,070 990 508 1,260 542 176 650 29 44 28, 000 6 , 340 - 1 , 990 990 508 1 , 160 475 196 555 30 .,. 23 l 5 , 650 - 1,950 1,010 508 1 , 110 409 211 600 31 100 5 , 090 - 1 , 960 - 508 - 398 226 -

W.onth Second- Ma.ximua M.iDiiiUII lie an Runott in 

rool-<layo acre-feet 

October ... . . . ........ ... . . ... . ..... , ... .... 1 , 780 120 37 57.4 3 ,530 

Noveaber . . . .... . . . . . . . . . ····· ········ ·· ···· 153,126 30, 200 136 5 , 104 303 , 700 

Deoeaber . . ............ ... ......... ......... 190, 2 10 1'7,600 3 , '120 6 ,136 3"r7 ,300 

------- ------ ------ ------ ---- - - Calendar year 1940 . . .. . . . .. .. •. ·•· ...... 578,659 30,200 37 1,581 1,148,000 ------- ------ January ...... . ........... . ...•..•...... .... 1:5-:5,060 9 , 3'70 - 4,292 263 , 900 Febru.ary . ..... , ........ .. .......•..•. .... .. 71 , 630 3,720 1 , 460 2 , 558 

I 

142,100 Karoh . ..........•.......•..• . ......•.. . .... 109 , 890 4 , 980 1 , 950 3 , 545 218 , 000 April. ....... . ............. . ....... . ....... 54 , 520 3,480 950 1 , 817 108, 100 llay ... . .................................... 45 , 387 2 , 720 508 I 1 , 464 90 ,020 J).U1e ......... , •. • •. • •••.• • . • •. • .••. • .. • .• . • 38,382 2,540 420 

I 

1,279 

I 

76,130 

July . . . ............ . ..... ...... ............ 30, 622 2 ,440 284 988 60, '140 AUIUSt ......................... .... ....... .. 7 , 183 351 128 232 14,250 Septeaber .. ............. .. .......... ...... . 8,729 1 ,010 98 291 11,:no - -- Wat er year 1940- U I 1 675 _ooo . . .... ..... . . . . . ... . . 8 44 519 30 200 37 2 314 

a Bo gage - he1gbt rec ordJ d.iecharge comput ed on be.e1e or J"'e corded range in stage, reoorde tor etat1on 

near llto, a.nd weather r e oorde. 
36 NECIIES RIVER BAS IN 

Angelina R1 ver at Horger, Tex. 

Location.- Cha!n gage, lat . :31°00' , long. 94°10 ', on bridge on State Highway 63, a quarter or a m!le east or Horger, Jasper County, 7 m!lea upstream !rom Indian Creek, 

and 20 m!les upstream !rom mouth . Datum o! gage ! a 68 .4 !est above mean sea level, 

datum o! 1929 (levels by Corps or E:ng!neers, U.S. Army ). 

Drainage area.- 3,435 square m!les . 

Records available.- March 1928 to September 1941. 

Average discharge.- 13 years, 2 , 915 second-rest. 

E:xtremes .- Maximum discharge during year, 36,200 second-test Nov. 30 (gage height, 34,50 

teet, !rom graph based on gage readings); min! mum observed , 99 second-rest Oct. 28 .• 1928-41: Maximum discha rge, 48 800 second-teet reb. 24, 1932 (gage height, 36 .35 

rest, !rom graph based on gage readings); m!n!m\1111 observed, 13 second-teet Sept. 22, 

1937. 

Maximum discharge known, 82,000 second-teet August 1916 (gage height, 39.6 teet, 

according to !n!ormat!on turn!shed by local residents). !rom rat!ng curve extended 

above 47, 000 second-teet by logar! thm!c plotting. 

Remarks.- Records good . Gage read tw!ce dally. Occasional backwater !rom Neches R1 ver. -,roQ!vers!on above station. 

corrsct!on.- The run-orr !n acre-teet ror the water year 1931-32 , as published !n 

water-Supply Paper 733, should be 3,530, 000 Instead or 2,630,000. 

Discharge . in second-teet. water year October 1940 to September 194~ 

Day Oct . Nov. Dec . Jan . Feb . War . Apr . llay June July Aug . Sept . 

l 306 358 32 , 900 le ,3oo 5,370 10,400 6 ,780 Z,940 6 , ZOO 2,940 1,160 4H 

2 Z44 Z30 30,400 18 , 000 6,410 10 , 300 4,9eo Z,500 4,020 Z,5e0 1,020 516 

3 250 ZlO 29,600 17,100 8,090 9 , 900 4,400 2 ,200 2 ,840 2 ,350 890 506 

4 Z37 340 28,300 15,700 8,440 9,380 3,900 Z, OOO 2,050 Z,250 830 575 

5 ZZ6 50Z 26 , 200 14,200 7,810 8 , 860 3 , 720 3,980 1 , 770 2,i'50 770 560 

6 ZlO 50Z 24,100 12,900 7,320 8,no 3 ,500 7 ,950 1 ,640 2 , Z50 740 515 

7 Z04 418 22,400 11,900 7,040 9,900 ~,480 10,400 2,160 1,950 740 502 

8 190 379 20 ,300 11 , ZOO 6 ,650 10 , 200 3,240 12 , 000 2,560 1,580 770 47t 

9 178 418 19,000 11,100 6 , 060 10 ,300 3,060 12 ,000 3,600 1 ,460 850 460 

10 170 665 17,400 11,400 5 , 640 9 ,750 Z,940 11,700 4,330 1,340 830 460 

11 16Z 920 15 ,700 11 ,500 5,240 9 ,600 2 ,780 11,500 7 , 040 1 , 260 830 460 

12 156 800 15 ,400 11,300 4,980 9,600 2,720 11,100 8,720 1,190 860 460 

13 150 755 17,100 11 , 100 4,720 9,680 2,670 10,400 9,520 1,190 830 474 

14 146 740 17,600 10,800 4,330 9,680 Z,7ZO 9,300 10,000 1,34.0 755 488 

15 133 7Z5 19,300 10 ,600 3,960 9_,600 2,890 7,740 10 , 000 1,770 695 502 

16 135 680 19 ,400 10,600 4,330 9,380 3,060 5 , 850 9,900 2 ,400 680 474 

17 127 6ZO 19 ,600 10 ,600 3,420 9 ,080 3,240 4,520 9,380 2 , 720 680 418 

18 116 530 19 ,400 10,400 3,240 8,790 3,360 3,900 8,650 2,1ao 680 385 19 118 530 18,700 9,900 3,180 8,440 3 ,480 3,600 8,020 2,780 1\1!0 374 20 113 502 17 ,600 9,380 4,460 8,790 3,420 3,300 7,250 2 , 890 !SSO 366 

Zl 116 502 16,400 8,720 4,520 9,450 3,300 3,360 6,620 3,240 616 360 

2Z 109 502 14,800 8,160 7,530 9,900 3,120 3,480 5,850 3 , 000 488 362 

23 109 856 13,500 7,530 7,810 10 , 000 2 , 940 3,540 4,980 2,620 460 344 

Z4 109 8 , 900 12,300 7,110 8,440 9 , 980 4,020 3,480 4,520 Z, 300 446 1,020 25 109 13 , 1'00 11,300 7 ,810 9,300 9,900 4,720 3,120 4 , 260 2 , 250 43Z 1,080 

26 109 16,200 11 ,300 7,460 9 , 980 9 , 600 4,330 2,670 3,960 Z, l50 488 1,500 

27 109 18,500 12 , 100 7,530 10,100 9,150 3,840 2,ZOO 3,660 2 , 300 495 1 , 680 

ZB 99 25,300 13 ,100 7,460 10,400 8,650 3,360 Z,300 3 ,720 2 ,400 665 1,720 

29 111 34 , 000 15 , 600 6,970 - 8,160 3,300 3,120 3,600 Z,ZOO 546 1,680 

30 116 35,000 17,200 6,ZOO - 7,460 3 ,42- 5,300 3,300 1,590 502 1,680 

31 201 - 17 ,700 5 ,710 - 6,6ZO - 6,760 - 1 ,300 47< -

llonth Second- Maxi mUll IUnimua lloan Runorr 1o toot-days acre-teet 

Ootober ... . ...... . . . ........... . . . . . . . . . . . 4,867 306 99 157 9,650 November ........ . .. . .. . .. .... ...... .... .. .. 164,484 36,000 ZlO &,483 326,200 December ........ . . .. . . . .. .. ............. .. . 585,700 32,900 11,300 18,890 1,162 ,000 - - ----- ------ ----- - ------ --- --- Calendar year 1940 .. . . ... .. ........ .... . 1 ,603,923 35 , 000 99 4,109 2 , 983,000 - ------ ------ ------ ------ ------ January ...... ... ······ ·· .. . ... ............ 328,640 18 ,300 5,710 10,600 661,800 February .... . ....... ... .... ... .... .. ....... 178,670 10,400 3 , 180 I 6,381 364,400 March .. . " ... . . . ...... .. . ... ............ " 289,220 10,400 6,620 9,3~ 673,700 

April .. . ............ ..... ... ..... ... ...... . 105,790 5,780 2,670 3 , 526 209 , 800 llay . ..... .... . ....... .. .... .. .............. 178,210 lZ, OOO 

::::: i 5 , 749 353,600 June . . .. .. . .. . .. ... . ... .. . . . . ... . .. .. . .. . . . 164 , 110 10 , 000 6,470 326 , 500 July . ... . .. . ............. .. .. .. ... .. ..... .. 66 , 700 3,240 1,190 9,162 132,300 August ... .. .. . ... ... . . " . . . .. ... ... ........ 21 , 611 1 , 160 43Z 694 42,670 September . . ··· ········ ...... . .. . . . . . . . . . . . . 20,959 1 ,720 344 699 41,670 ---- Water year 1940-41. " .... . · • · . . . . . . . . . . . 2,108,861 36 , 000 99 5 ,778 4,183,000 
NECHES RIVER BASIN 37 

Striker Creek near Sununertiel c1, Tex . 

Location.- Chain gage, l at . 32°00 '10', l ong. 94°59 '35', on bri c1ge on u. s . Highway 79 , 3t miles c1ownstream !rom Johnson Creek anc1 6t miles northeast or SUJ!D11ertie lc1 , Cherokee 

County. Datum or gage is 287. 0 teet above mean sea level, c1atum or 1929. rai~e area.- 135 square miles. 

R&cos avallaole. - September 1940 t o September 1941. May to August 1940 (c1ischarge measurements only) . e:xtremea.- 1940-41: Maximum c1ischargs c1uring peri oc1, 10 , 800 seconc1-teet Nov. 24 (gage height, 17 .23 teet, !rom tlooc1mark), trom rating curve extenc1ing above 5 , 000 seconc1- teet by velocity-area stuc1 ies; mi nimum obssrvec1, 4 . 7 seconc1-teet Oct . 25 , 28. Remarks.- Recoros gooc1 except those t or perioc1 or no gage-height recoro, whi ch are poor. ---uag8 reac1 twice c1a1ly, oftener c1uring tlooc1s. No l arge c1i version above st ation . 

Do.te Dieobargo Do. to 

""" l • 1&2 JUno ~ 

~ • 122 ll 

5 ~ 12 

9 • l& l~ 

18 • 18 u 

Daily dhob&.rge, in eeo.ond-!'eet, 1~0-41 

1940 

Dioobargo Do. to D1eoharge Do. to 

-.a Jlmo U 0&2 Sept . u 

tl2~ J\ll:r 24 •l& 25 

• 1se Aug. 20 .. 9 26 

• 211 ~0 •1,2&0 27 

1~1 ~l t57& 28 

• Dieoharge meaauroment. t Average ot two d1eoharge uaaurementa , 

1940-U 

~ Oct . Nov . Deo. Jan . Peb . War. Apr . I ..... l 7 . 6 ~ 161 M6 192 106 75 

2 6 . 4 72 l~ &19 160 1~5 72 

3 7 .2 U& 126 915 1~9 1,670 77 

4 6.8 147 114 5~7 126 1,.(00 81 

6 6 . 4 105 10~ ~M 118 &54 100 

6 6 . 4 60 92 230 146 299 ~46 

7 6.8 ~2 126 185 55& 192 1 , 110 

8 &6.8 20 ~51 160 1,180 144 927 

9 &6.7 2~ 660 144 764 126 409 

10 a6.6 35 45~ 1~4 &185 ~4 106 222 

11 6 . 6 5~ 278 126 2~0 99 1~4 

12 6.6 85 ~71 122 172 89 1~4 

13 5.9 106 &51 114 160 80 149 

14 5 . 5 10~ 768 180 149 75 114 

15 5 . 4 80 810 ~1 1~9 70 89 

16 5.0 50 1 , 770 540 1~0 72 70 

17 5.0 ~0 1,840 ~98 122 82 51 

18 4.8 2& 814 268 192 es 45 

19 &. 2 2~ 400 185 ~ 192 85 u 20 4.8 22 248 149 1~ 149 110 42 

21 4 . 8 22 192 130 ~· ~9 134 44 

22 4.8 42 160 118 480 1~9 149 44 

23 4.8 4,040 144 114 ~68 166 1~0 ~ 

24 4 . 8 9,64.0 1~ 1&9 61~ 279 160 3~ 

25 4.7 5 , 080 122 ~68 890 503 222 ~0 

26 a.o 2,510 168 625 712 ~97 268 28 

27 4.8 1,280 729 466 406 2~7 178 5 

28 4 . 7 62~ 1 , g4o ~4 268 166 126 ~ 

29 5 . 0 ~~0 1,240 2~0 - 144 95 ~ 

30 5.0 209 645 166 - 126 81 u :n 14 - 322 144 - 114 - 42 

D1echarge Date D1aohargo 

8 . 2 Sopt.29 9 . 2 

9.0 ~0 8.4 9.7 

11 

9.9 

Juno July Aug. Sept . 

~ 74 ~l 29 ~ 48 21 21 4~ ~0 18 17 

60 25 16 16 82 22 18 ~9 

66 21 3~ 55 

60 19 48 ~5 

64 18 52 22 106 17 60 18 1~4 16 4~ 18 

lM ~l ~2 37 

1~9 82 u 59 

g: l 275 20 48 480 17 29 

95 ~46 15 22 

99 ~9 H 19 

18~ 214 15 18 

248 1~ 1 14 1 7 185 13 1 0 

118 5<1 12 14 

76 7 10 13 

59 ~0 9. 9 12 

67 ~~ I 9 . 9 12 

52 42 ~9 

~ 20 122 242 

u 18 118 1,240 

42 ~1 66 1 , 460 

« 103 29 686 

68 139 20 298 

85 114 17 163 

- 66 22 - a Mo sage -height reoordJ d.1aoharge interpolated or computed on ba.ala ot recorda tcr nearby ata- t1on and. weather reoorOa. 

PfonthlJ d11charge, 1n .eeoond- teet, 1940-41· 

llonth Second- Maxiaua M1D111.Wl lloan Runott in 

root--<taya aor.-teet 

September 24 ~0. 1940 ... .. ... . ............. && . 4 11 8 . 2 9.~4 1~0 

October 1940 .. .... ....... .... ............ . . 184.9 u 4.7 5 . 9& 

November ............. .... .................. 26, 030 9,640 20 8M ,9,~~ December . ... ... ················•·· ········ 15, 962 1 , 040 92 515 31 , 660 

-- ----- Calendar year .................... .. 

------- 17,710 January 1941 ......... .. • .. ... . ... . • . .•.. . .. 8,931 915 114 288 

February ...... .. .. . . ... ...•.. . ....•..•.. . .. 7,6:57 890 27~ 

March . .......................•............. 7,810 1,180 114 2111! t~ !:g Ap r il ........... . ......•.. • · · • · · · · · · · • · · · · · 7,210 1,670 70 240 ~oo 

...... ....... ... ............. .......... ...... 4,699 1,110 28 152 9,~20 

June ........ . . . •. . . ... . ...... . . ............ 2,756 248 ~ 91.9 5 , 470 

July . . .........•...... . ...•.......•..•..... 2 , 865 480 l& 92.4 &, 680 

Auguot ........ . . . . . .......•..........• . .... 971 . 8 122 g . 9 ~1.~ 1,930 

Septeaber ....... . ........ . ...•........... 4 , 715 1 , 460 12 157 9,~60 

Wa ter year 1940 4 1 ........... ........ 88,771.7 9 , 640 4 . 7 24~ 176,100 
38 NECHES RI VER BAS IN 

Attoyac Bayou near Chireno, Tex . 

Location .- Water-stage recorder , lat. 31030'15" , long . 94°18 ' 15•, at bridge on State 

Highway 21 , 3 miles no r theast or Chireno, Nacogdoches County, and 7 miles downstr eam rrom Arenoso Creek. Datum or gage Is 169.9 r eet above mean sea level, datum or 1929. 

Drainage area .- 502 square miles. 

Records available .- January 1924 t o August 1925, July 1939 to September 1941. 

~}f-m~~~W: ~s;~~~~-1~~~~cr~a£3 31,900 second-t eet Nov . 24 (gage height, 25.97 

1924-25, 1939-41: Maximum discha rge, t hat ot Nov. 24, 1940; minimum observed, 

7 .0 second-teet Aug . 27, 1925 . Maximum stage known, 29 .9 teet In June 1912 (result or local storm) , according to lntonnatlon rumlshed by local residents. 

Remarks .- Records good except those r or period or no gage-height record , which are poor. 

---rro<rrversl on a bove station . 

Discharge in second-teet water year Oc t ober 1940 t o September 19 41 

0~ Oc t . Nov. ll<lo. Jan . Feb . Mar . Apr. lla y June July Aug . Sept . 

1 51 135 1,7 40 2 , 150 442 1 , 740 462 3 42 472 704 133 174 

2 4e 282 1, 3 40 1 , 950 653 1,520 442 342 3e2 751 120 143 

3 46 22e 1, 120 1 , 970 e54 1 , 340 492 422 352 654 110 160 

4 .. 141 1 #040 3 , 080 e96 1 , 100 522 402 322 522 llO 17e 

5 42 137 939 2,480 882 e42 462 2,:no 2e5 392 113 153 

6 41 110 775 2 , 070 924 710 432 5 ,000 2e6 294 156 190 

7 42 9 4 763 1 , 7 40 969 1 , 100 432 5 , 750 e57 276 164 153 

8 42 eo 954 1 , 570 954 1 , 300 412 4,890 e94 240 204 113 

9 42 80 1 , 200 1,180 

~ a640 

1 ,520 372 3 , 200 5 , 390 21e 312 113 

10 40 132 1 , 380 1 , 150 2 , 340 3 42 2 , 380 3 , 740 204 322 153 

11 3e 19e 1 , 850 924 2,200 322 1 , 990 3 , 480 208 429 204 

12 37 214 2 ,790 727 1 , 990 303 1 , 680 2 , 600 503 1S2 240 

13 37 214 5 ,440 616 472 1 , 880 294 1 ,400 2 ,480 422 133 17 4 

14 37 171 5,750 660 452 1,680 285 1 , 090 2 , 150 557 116 126 

15 36 134 4 , 780 78e 422 1, 420 287 687 1 , 880 693 213 116 

16 37 110 3 , 650 939 412 1 , 300 258 432 1 , 680 751 160 113 

17 37 96 3 1060 1 , 000 392 1 , 200 258 302 1 , 680 801 113 113 

18 36 88 2 , 720 1,020 382 1 , 070 249 382 1 , 740 654 102 104 

19 36 83 2 , 380 9e5 396 e96 249 362 1 , 940 377 99 99 

20 35 e3 2 , 070 954 ~0 1 , 020 267 419 2 , 200 267 e6 96 

21 35 e3 1 , 800 854 1 , 860 1 , 240 276 660 1 , 880 226 eo 91 

22 35 e6 1 , 570 6e2 2 , 330 1, 300 285 610 1 , 570 195 76 e3 

23 3 4 703 1 , 340 552 2 , 480 1 , 200 635 462 1 , 340 174 244 78 

24 35 26 , 800 1 , leO 532 2 , 600 1 , 150 e54 372 1 , 100 174 649 225 

25 >6 26 , 600 902 6>2 2 , 380 '1,070 780 >03 oo• 240 >02 492 

26 38 15 ,700 1 ,410 594 2 , 150 069 588 258 6 44 222 190 660 

27 36 7 , 260 2 , 540 660 2 , 050 910 

4421 

240 472 20e 174 704 

28 37 3 , 930 7.980 662 ~50 801 342 316 462 267 164 704 

29 40 2 , 660 6,860 6 49 - 6 49 33 2 550 627 2e5 133 751 

30 47 2 , 110 3 , 650 552 - 542 392' 693 660 226 129 614 

31 66 - :'?: , 540 472 - 492 6 49 - 164 150 -

Month Second- llu.i•wa Mini aua lloao Runott in 

toot-days ac re-teet 

Oc tober ... . ... ... .... . . . . . . . ~ . . . ...... . .. . . 1 , 240 66 3 4 40. 0 2 ,460 

Novembe r ...... .. .... . ... . .. .. . . . . . . . . . . . . . 88 , 742 26 , 800 eo 2,958 176 , 000 

Decembe r . ... .. . . . . . . . . . . . . . . . . . . .. . ..... . .. 77 ' 723 7, 980 763 2 ,504 154,000 

---- -- - - -- --- ------ ------ ---- - - Calendar year 1940 ............ .. ..... .. . 318,862 26 , 800 34 871 632 , 500 

---- --- ------ ------ ------ ------ January . .... . .. . .... ... ... .. . . ............. 34 '714 3 , 080 472 1 , 120 68 , 850 February . .. . ........ . .... . ... . .... . ...... .. 31 , 202 2 , 600 382 1 , 114 61 , e90 March . .......... .. . . .. .............. . ........ 38 ,491 2 , 340 492 1 , 2 42 76 , 350 April ... . .. . . .. .•. .• .. , . .•. . . .... •..•.. . ... 11 , e66 e 54 249 395 23 , 520 May . ... .. . . ... ...... . ...... . . . ....... . .... . 36,935 5 , 750 240 1 , 2 56 77, 230 June ..... .. .. ......... . . .. . . ... . .. . .•.. . ... 44,489 5 , :590 285 1 , 483 68 , 240 July . . . . .. . . ...... .... .. . . . . . . . . . . . . . . . . . . . 11 , 669 eo1 164 ~76 23 ,150 August .. . . ... .. . . . .. .... .... ....... .... .... 6 , 578 6 49 76 1eo 11 ,060 

September ... ... .... .. . . . . . . . . . . . . . . ·· · · · ··· 7 , 517 814 7e 251 14,910 

Water year ..J...9 40 -41 ·· · · · · · · · · · ··· ·· · · ···· :592 , 0 56 26 , 800 3 4 1 , 07 4 77? ,700 

Peak d1acba rgoG . .. Rov. 24 (t::SO p .m. ) 31 , 900 aec.-r t.; De c . 13 (7: 30p. m.) 6 ,700 aec .-rt .; Dec . 28 (5:30 p . m. ) 10 , 500 aec . -rt.; 

a lfo gage -height record; dischar ge comput ed on bash or recorded r ange 1n stage re aords t or Mud Creek nea r Jacksonville and StrUcer Creek nea r Summerf ield, and weat he r r e co;.da . 
NECHES RIVER BABIN 39 

VIllage Creek ~ear Kountze, Tex. 

Location .- Water-stage recorder, lat . 30°24•, long . 94°16 ' , on bridge on KountzeSilsbee county highway , 1.2 m!les upstream !rom Oul!, Colorad o & Sante F'e 

Rs!lway brtdge , 3.2 m!les northeast or Kountze, Hardin County, and 4l mtles down- stream !rom Beech Creek. Datum or gage ts 25.1 teet above mean sea level, datum or 1929 . 

Drainage area .- 637 square miles. 

Records avatlable .- May 1924 to November 1929 , and Apr!l 1939 to September 1941. October 192'7 to November 1929 (discharge measurements only). 

Extremes .- Maximum discharge during year, 67,200 second-teet Nov. 26 (gage height 27.6 feet, !rom !loodmark), !rom rating curve extended above 35,000 second-teet by ' 

logarithmic plotting; minimum, 61 s econd-teet Oct. 24, 25 . 1924-27, 1939-41 : Maximum discharge, that or Nov . 26 , 1940 · minimum, 32 second- teet Sept. 28 , 1939 . ' Maximum stage known , about 34 teet, present s l te and datum, August 1915 . F'lood or May 27 , 1929 , reached a stage or about 32 tee t , present site and datum. Above 

stages were determined on basis or ln!ormstton turntshed by engineers or Gul!, 

Colorado & Santa F'e Rs!lway !or sl te 1.2 miles downstream. 

Remsb~~e;s~~o~~ ~o~a~~~~~t those above 35 ,000 second-teet, which are poor. No 

Ratlna tAble, water year 1940- 41 (gage-be1ght 1 ln teet, and discharge, 1n second-root) 

(Sh1ttlng- c ontrol method used Oct . l-31) 

l,g 60 10.0 1 , 450 16 . 0 6 , 150 22.0 2 4,000 

2.5 105 11.0 1 , 780 17.0 8 , 050 24 .0 35,500 3 . 0 150 12. 0 2 , 200 18.0 10 , 200 26 .0 51 , 300 4. 5 317 13 . 0 2,800 19. 0 12 , 800 27 . 0 61,200 6 . 0 550 14 . 0 3,550 20 . 0 16 ,000 

8.0 970 15. 0 4 , 650 21.0 19 , 500 

Discharge, in second- feet. water year Oc tobe r 1940 to September 1941 

Day Oc t . Nov. Dec. J an . Feb. War. Apr. llay June J ul y Aug. Sftpt . 

1 98 551 4, 410 3 , 850 772 1 , 270 838 1 ,400 3 , 650 1,080 2H 165 

2 89 948 3 , 600 3 , 0 10 872 1 , 04(\ 772 1 ,4 50 3 , 390 750 228 165 

3 83 1 , 100 2 ' !>00 2 , 260 1 ,450 838 706 1 , 540 2,620 626 216 175 4 eo 9 48 2 ,300 1 , 780 1 , 970 750 666 1 , 6 40 1 , 580 816 211 165 5 77 568 1 , 8 40 1 , 540 2 , 500 706 706 2 , 080 919 9 48 222 241 

6 75 450 1 ., 510 1 ,400 3 , 080 706 706 3 , 670 686 5 44 222 418 7 73 482 1 , 370 ~70 :5 , 310 1,330 066 4, 170 1 , 230 43 4 233 324 

8 70 466 1 , 600 1, 350 2 .680 2 , 260 606 4, 170 3 , 320 379 365 238 

9 70 418 1 , 930 1 , 350 2, 050 2 , 740 586 4 , 290 -4 , 650 337 418 195 10 69 938 2 , 100 1,270 1 , 6 40 2 , 870 550 3 , 760 5 , 070 324 402 195 

11 e8 1 , 480 2 , 160 1,180 1 , 320 2 , 800 498 2,800 5,070 372 37g 255 

12 67 1 , 700 2 ., 990 1 , 060 1 , 100 2 , 380 466 1 , 690 5,830 1 , 060 310 279 

13 66 1 , 780 12,600 970 970 1 , 850 418 947 6 , 150 2 , 190 255 310 

14 66 1 , 780 29 , 500 992 882 1,420 402 686 5 , 510 2 , 500 228 285 

15 64 1 , 420 31 , 900 1 , 520 816 1 , 150 386 586 5 , ?.10 2 , 100 211 233 

16 64 926 1A ,400 2 , 050 750 1 , 010 J72 514 3 , 850 1,670 195 211 

17 6 4 532 10 , 200 2 , 440 686 9g2 3fi1 466 2 , 800 1 , 270 180 352 

18 64 418 6 . 980 2 , 560 666 9 48 3H 418 2,010 1 , 200 170 386 19 65 36S 6,670 2 , 440 6 46 1 , 010 337 394 1 , 570 1 ,400 160 394 

20 66 330 4,650 2 , 260 686 2 , 330 330 372 1,250 1,250 160 386 

21 66 310 3 , 750 1 , 890 926 4, 410 330 365 1 , 060 1 , 040 150 279 22 64 304 3 , 010 1 , 480 1 , 200 5 , 070 337 523 1 , 010 1 , 200 146 222 23 63 324 I 2 , 380 1 , 150 1,370 4, 530 402 971 1 , 150 795 141 200 24 62 2 , 180 I 1 , 850 1 , 0 10 1 , 670 3 , 850 764 1 , 370 1 , 260 ' 568 136 876 25 62 19 , 200 1,540 1.,0 1Q 1 , 930 3 , 080 1 , 150 1 ,540 1 , 080 450 132 1 , 760 

26 64 62,200 . 1 , 6 40 1 , 080 2 , 010 2 , 320 1 ,420 902 926 37g 132 1 , 930 

27 64 47 , BOO 2,260 2~ 1,810 1 , 600 1 , 820 sse 838 337 132 1,970 

28 70 25 , &00 3 , 080 1 , 320 1 , 510 

I 

1 , 220 2,680 777 794 324 136 2 , 010 

29 82 11 , 300 I 3 ,'"50 1 , 200 - 1 , 130 2 , 420 1 , 720 882 304 141 1 , 670 

30 93 6,200 4 , 410 970 - 1 , 060 1 , 6 40 3 , 090 1 , 180 279 160 1 , 010 

31 123 4, 530 838 - 970 - ~,650 - 261 160 -

Month Second- Maximum 1Un1mum lie an Runotr in 

root-days ac re-teet 

Oc t ober .. .. . .. . .. ........ . . . . . . . . . . . . . . . . . . 2 ., 251 123 62 72. 6 4,460 November . . . . ... . ........... 0 •••••• • •••• • ••• 192 , 911 62 , 200 304 6 ,430 382 , 600 Oooomber ...... . ..... .. ··· ······· ··········· 180 , 900 :n ,900 1 , 370 5 , 835 358 , 800 

------- ------ -- ·· --- ------ ------ Calendar year 1940 ..... . ................ 516 , 504 62 , 200 62 1 ,411 1 , 0 24.,000 

------- ------ - - - --- -- - - - - ----- - January . ...... . ...... ... . . •. .. . .. .•........ 49 , 850 3 , 850 838 1,608 98,880 February .... . . . .. . .. .. .... o •••• •• • • •••• • • •• 41, 27 2 3 , 310 6 46 1 , 474 8 1,860 Naroh . .... . .. . .. .. ~ . . . . . .....•.. . .. .. ...• . . 59 , 690 5 , 070 706 1 ,926 118, 400 Ap r il .. . .. . . . . . ••.... . ..• .• ..•• . ...•....• •· 23 , 669 2 , 680 330 789 46 , 950 llay .. ... . . . .... . •.. . .. ... . . .. •. . . ... . ... •. . 52 , 627 4, 290 365 1 ,694 104, 200 June .... . . . . ... . . .. .. . . ... . .... o •.•...• .• •. 76, 535 6 ,150 686 2 , 551 161 ,800 J uly .... . . . ............ .. ... ... . .. . .. .... .. -~ ;~~ e,soo 261 8 77 53 , 920 August .... . .... . ... . .. · ······· · ·•· ·· · · ·· o•• 418 132 212 1:5 , 0 40 September . ... . ..... ... . ... . ···· · · · ·· ....... 17,199 2 , 010 165 573 34, 110 

Water year 1940-41 ... ······· · · · ···· .. . . . 730 , 666 62 , 200 62 2 , 002 1,~49 ., 000 

r Fragmentary gage-height record ; dleoharge computed from part17 eatlma ted gage holghta. 
40 TRINITY RIVER BASIN 

west Fork or Tr1n1 ty RI ver• at Fort Worth, Tex . 

Locat1on .- Water-stage rgcorder above gp1llway or Fort Worth Power & L1ght Co . concrete dam, lat. 32 46', long. 97 20', 1n old' pump house or Fort Worth Power & 

L1ght Co . •s plant 1n Fort Worth, .Tarrant County, 150 teet upstream from Paddock 

v1aduct and a quarter or a m1le downstream from Clear Fork or Tr1n1 ty R1 ver. Datum or gage 1s 519.2 teet above mean sea l evel (Texas Recl amat1on Department benchmark based on U. s. Coast & Geodet 1c Survey datum). 

Dra1nage area.- 2,431 square m1les . 

Records ava1lable.- October 1920 to September 1941. U. S. Weather Bureau hae collected 

gage-height records 1n th1s v1c1n1 ty s1nce 1910 . 

Average discharge.- 21 years, 417 second-teet. 

Extremes.- Max1mum d1scharge dur1ng year, 10 ,200 second-teet Feb. 1 (gage he1ght, 10.69 

feet) · m1n1mum, 0 . 1 second- toot Oct. 13-15 , 23-26. 

1920-41: Max1mum d1scharge , 65, 000 second-teet, Apr. 25, 1922 (gage he1ght , 23.95 teet) 1 by slope-area method, data turn1shed by C1 ty eng1neer or Fort Worth; no now at t1mes . 

RemarkS .- Records good except those below 25 second-teet, wh1ch are ta1r. Cons1derable 

----arVei's1on above stat1on tor mun1c1pal supply , Flow partly regul ated by Br1dgeport, Eagle Mounta1n , and Lake Worth Reservo1 rs (combined capac1ty, 527, 000 acre-teet), 

Oiaoharge, in second-teet. water year October 1940 to September 19-tl 

011,)1 Oot . Nov . Dec . Jan . Feb . Mar. Apr . ~ Juno July Au& . Sept. 

1 0.9 4 .S 1 , 280 1,660 4,970 1,620 734 1,410 1,710 6,290 2,340 29 2 . 7 2.9 1 , 220 1 ,4?0 3,190 1 , 660 734 1,340 3,060 6 ,44.0 2,280 27 

3 .7 3.S 1,220 1,490 1,080 1,620 786 1,350 2,620 6,000 2,2SO 26 4 . 6 8 . 0 1 , 220 1,420 778 1 ,460 741 1,470 1,980 4,390 2,280 196 5 .6 8,0 1,240 1 , 080 648 1,200 663 5 , 510 1 , 860 4,3g() 2,280 7H 

6 . 3 5.8 1,220 607 727 1,310 677 2 ,600 2 , 010 4,390 2,280 918 7 . 3 5 . 8 1,230 425 S58 1,330 1 , 020 2,220 2 ,360 4,080 1,780 955 8 a.3 4.8 1,210 331 S95 1 ,0.0 843 2,160 1,920 3,600 1,240 966 9 a.3 42.0 1,200 284 1 , 080 918 778 2 , 040 1,880 3 , 170 916 1,040 10 a . 2 12 . 0 1 , 200 230 1 , 330 962 727 2 , 040 4,780 2,900 677 1,020 

11 a . 2 9.2 1,670 216 1,410 BOO 713 2,040 5 , 990 2,840 655 1,010 12 a.2 6 .9 1,650 198 1 ,380 861 705 2 ,100 2 ,970 2,770 3 46 1,010 13 a . l 4.8 1 , 560 202 1,620 677 684 2,040 4,460 2, 580 ,~20 1,020 14 a .1 3 . 8 2 ,110 234 1,:no 475 713 1, 80 5,710 2,520 296 992 1~ .1 3 . 8 3 1890 20 2 1,320 363 741 1 , 980 6,100 2 ,460 144 766 

16 . 3 a.o 3,480 225 1,340 294 741 1 , 980 7 , 400 2,460 113 580 17 . 7 10 1,360 198 1,350 234 727 1,980 7,120 2 ,460 64 5H 18 .7 9.2 910 ~ l:~a8 ~Sb 1,980 1,9 20 8 ,260 2 ,400 n 476 19 . 7 6.9 713 1 , 200 1,920 8 , 870 2,460 35 475 20 .ft .9 985 120 2 , 260 202 969 1,920 9 , HO 2,400 33 409 

21 .9 14 1 , 260 113 1,520 194 756 1,980 8,960 2,400 33 178 22 . 5 35 1,320 109 1 , 540 181 792 2 , 280 8,780 2,400 108 89 23 .1 281 1,:540 1,96 2,700 366 1,700 2,040 8,600 2,400 109 46 24 .1 408 1 , 330 102 3,170 278 1 , 620 1 , 920 8 , 310 2 ,340 109 37 26 . 1 l,:SQO 1,320 99 2,040 211 1,480 1,860 7 ,710 2,340 224 220 

26 .7 &'..~~ 3,:560 99 2,340 ·~9 1 ,400 1,860 6 ,460, 2 ,340 125 348 27 1 .1 4,100 92 1 , 920 646 1,630 1,660 6 1 ·UO 2,340 67 431 28 2 . 1 g527 2 , 040 86 1 , 740 620 1,540 1 , 320 6 ,710 2,:HO n 488 29 1.1 g891 1 , 680 86 - 670 1,4-lO 1,250 5,970 2,3t0 37 60S 30 1.1 1 , 200 1,580 89 - 698 1 ,440 1,240 5 , 580 2,340 36 60S 31 u - 1,560 132 - 685 - 1,460 - 2 , 340 33 -

Month S•oond- llaxiiiUII Minimum lie an Runott ln toot-da.ya aore-teet 

October . . ............. . .. . . . ... .. . . .• .. . . .. 60.1 44 0. 1 1.94 119 

Noveaber .............. .. ... . ..• . .•. .... . .. . 8,107.~ 2,480 2.9 270 1& , 080 

December ................. . . . .. . . .. . , . . ..... 61,478 4,190 713 1 ,661 102,100 

-- ----- ------ ------ ------ ------ Calendar year 1940 ...... .. .. ..... ...... . 98,138.2 4,190 .1 268 194,700 

--- -- -- ------ ------ ---- -- -- ---- January . . ............ . .. . ............. . .... 11 , 887 1,&&0 86 383 23 , &40 

P'obruary . .. . . . ...... . ....... . ........ . .. . . . 47,138 4,970 648 1 , 883 93,490 

March ..... . ...... . . • ................•...... 22 , 319 1,820 181 720 44,270 

Ap ril. .. . . . . ... .... , .. . .. . .......... . ...... 30,623 1,980 663 1 , 021 80,740 

~ ... .... ... ......................... ..... 80 , 770 6,610 1,240 1,960 120, 600 June . .......... . . . . • ... . ......• . ... .. ..... . 162,620 9 , 140 1,710 6 ,421 322,600 July . . . . . . . .. . . . . . .... . . . . .. .. , .... .. . . . . .. 93,920 6 , 440 2,340 3 , 030 186,300 Aucuat .. .. .. . . . . .... . ... . ......... . . ... . . . . 22,201 2 ,340 33 716 44,040 

Septe11ber . . . ........ ..... ......... ...... ... 16,972 1,040 25 532 31,880 

Water year 1940-41 . . . . . . . . . . . . . . . . . . . . . . 527,073 .4 9,140 .1 1 ,4,, 1 , 046,000 

Peak dhobarse . - Dec. 26, (S sOO p. m.) 7,290 aeo. - rt . ; Peb. 1 , (7:00p.m.) 10,200 aeo .-rt.; June 10, 

£~:·;a! 1i;~~·:~; ~~i~oJ::.:~t. (12 s30 p.m . ) 8,870 aao .-tt.; June 20 , 02100 m. } 9 , 140 1ec .-tt., a No gage ... he1ght record.; 41acharge interpolated . 

g Computed !rom graph baaed on gage readings t'urnhhed by tJ , s. Weather Bureau . 
TRINITY RIVER BABIN 41 

-West Fork or Trinity RIver at Orand Prai ria, Tax. 

Location .- Water-stage recorder, lat . 32°46 •, long. 96°59' • 440 teet dov.nstream trom otldge on Orand Prairie-Sowers-Irving lJighway, 1 mile northeast ot Orand Prairie, Dallas County , and 6 miles upstream rrom Mountalh Creek .· Datum or gage is 412 .96 teet above mean sea level, datum or 1929. 

Drainage area.- 2,686 square miles. 

Records available .- Ma rch 1925 to September 1941. 

Average discharge.- 15 years, 522 second-teet . 

E:xtremes.- Maximum discharge during year, 11 ,400 second-teet June 11, 23; maximum gage ne tght, 23.50 teet June 12 (atte'Cted by backwater !rom Elm Fork and Mountain Creek); minimum, 11 second- teet Oct. 9. 

1925-41: Maximum alscnarge observed, 15,400 second-teet Jan. 23, 1932 (gage height, 25.96 teet, at site then In use , present datum); minimum observed 3.2 

second- teet June 6, 1925 . ' 

Maximum stage known, 29 teet In Aprtl 1922 . 

Remarks.- Records good except those tor periods ot backwater, which are poor. -,.,;my-small diversions above gage; l argest diversi on Is t or municipal supply ot Fort 

Worth . Flow. partly regulated by Bridgeport, Eagle Mountain, and lake worth 

Reservoirs (combined capaci ty, 527,000 acre-teet) , 

Diaoharge in aeoond-teet water year October 1940 to September 19'1 

Day Oot . Nov . Deo . Jan . Feb . Ma r. Apr. llay June July Aug . Sept . 

1 H 124 1 , 290 1,810 864 1,980 907 1.620 1 , 620 6,290 2, 320 75 

2 14 43 1 ,290 1,720 6,610 1,880 82e 1,560 3 , 930 6 , 930 2 , 320 75 

3 18 26 1,260 1.640 6 , 610 1,820 880 1,500 5,060 6 ,110 2,290 65 

4 18 20 1 , 260 1,670 1,690 1,820 880 1,610 2,760 5,570 2 , 290 62 

5 17 16 1 ,290 1,530 1 , 080 1 ,620 826 4, 740 2 , 040 4,880 2 , 290 201 

6 17 18 1,260 1 , 080 930 1,590 772 7,100 2,680 4 , 800 2,290 772 

7 19 26 1 , 260 684 1 , 030 1,940 1, 120 3 , 700 5 , 070 4,750 2 , 220 988 

8 13 23 1 , 260 530 1,080 1,620 1,260 2,480 2 , 820 4,300 1 , 590 1,040 

9 12 42 1 , 240 450 1 , 130 1,260 934 2 , 290 2 , 080 3 , 760 1 , 230 1 , 070 

10 l4 136 1,240 416 1 , 370 1 ,160 880 2 , 180 4,000 3 ,320 880 1 , 200 

ll 15 56 1,400 358 1,560 1,100 799 2 , 150 9,720 5 , 160 691 1 , 150 

12 16 42 2,~60 347 1,680 961 799 2 , 180 o8 ,480 •• ~30 672 1,150 

13 17 32 2,210 326 1,580 988 772 2 , 220 o5,290 ~,280 522 1,150 

14 17 27 2 , 910 347 1,610 718 772 2,080 5 , 270 a,eoo 2 , 640 1 , 150 

15 14 26 4,130 681 1,480 510 826 2 , 010 6 , 230 2,600 461 1 , 100 

16 l4 25 6,290 ~36 1,480 472 826 1 , 980 7,730 2 , 680 258 799 

17 16 24 3,930 336 1,600 ~98 826 1,980 9 , 040 2,640 205 6~7 

18 18 2~ 1 ,660 ~0~ 1,480 ~40 1,940 1 , 980 9 , 040 2,~20 144 672 

19 18 24 1,030 248 1,600 317 2,460 1 , 910 9 , 0 40 2 , 740 117 5 48 

20 17 27 1130 223 2,360 306 1 , 500 1,940 9,650 2,920 102 648 

21 17 31 1,240 223 2 ,4 50 306 1,070 1 , 980 10,600 2,520 00 422 

22 13 6 46 1 ,420 219 1,780 306 907 2 , 1 50 11 , 000 2 ,480 lOB 240 

23 l4 2 , 240 1 ,450 21 ~ 2 , 000 ~28 2,110 2 , 2QO 11, 400 2,440 296 161 

24 16 1 , 640 1,450 201 5 , 300 498 2,660 2 ,080 11 , 000 2 ,400 362 106 

25 18 2 , 730 1 ,420 196 4,190 686 1,940 1 , 940 10 ,600 2,400 363 138 

26 18 6 , 840 1 , 910 190 2 ,980 386 1 , 670 1 , 880 10 ,300 2,~60 317 265 

27 20 2 ,370 6,520 182 3 , 010 840 1 ,640 1 , 850 9 , 040 2,360 ~17 686 

28 111 684 6 , 200 173 2,290 718 1 , 860 1 , 560 9 , 040 ~60 292 448 

29 14 805 :gg 167 - 772 1 , 790 1,370 8,660 2 , 320 131 498 

30 13 1 , 160 169 - 799 1 , 640 1,~70 7,240 2 , 360 102 498 

31 29 - 1,780 184 - 853 - 1,370 - 2 , 360 88 -

Wonth Second- Wax izaue Min imum lie an Runott in toot-days aore-teet 

October ....... , .. . . . ......... • ...... . . . .... 509 29 12 16.4 1 , 010 

November . . ... , ... . ....... . .. , . . .•...... . ... 19 , 125 &, 840 16 6Y7 37,1130 

De c ember ... ... ............... ..... ·•·· · ···· 67 , 210 6,&20 930 2,168 133,300 

---- -- - -- ---- ------ ------ ---- - - Calendar year 1940 ...................... 17& , 910 6 , 520 12 481 348,900 

---- - -- ------ -- -- ------ --- --- January . ...... .. .............•..•.......... 16 , 851 1,810 167 644 33,420 

February ....... . .... . ........... • ..•. .• .... 61,424 6,610 864 2 , 194 121,800 

Wa roh ....... . •.. . ....... • ........ . .•...... . 28 , 982 1 , 980 306 936 67 ,480 

Apri l . .. . . .. . ...........•.. ... • . . ..•..•.... 37 , 982 2 , 660 772 1 , 266 76,340 

llay .. . . . ... . . •.•.. • .. • ..• . ...... • . .• .. . .... 69 , 050 7,100 1,370 2 , 227 137 , 000 

June . ... . ... . . . .•. . ... . .•. . ...... . ......... 210 , 430 11,400 1 , 620 7,014 417, 400 July . ..... . . . ........ . . . . . . . .... . .......... 107,740 6 , 290 2 ,320 3 ,476 213 , 700 

Aua:uet . . . . .. ..... . ... . ...•...••.•• . ••••.... 27 , 788 2 , 540 88 896 65 ,120 

Septe•ber . . . ..... . .... . . . . . . . . ........ ..... 17 ,496 1 , 200 62 68~ 34,700 

Water year 19 40-41 ..... ....... .. ........ 664 ,587 11,400 12 1,821 1,:518 , 000 

P~alc dia~har~e.- De c . 28 , (l a .m. ) 7,470 aec. - tt . ; Feb. 3 , (l a.m. ) 7,670 seo.-rt.; Moy 6, (8 a .m.) 

?,oro aeo. rt . , June 11 , (8 p . m. ) 11, 400 aec .-ft., June 23 , 24 , 11 ,400 aec .-rt.j July 11, (1 p .m. ) 7 , oeo aec.-tt. c Backwa ter from !l.m Pork or Trinity Ri·nr and ilountai.n Creek; discharge computed on basis or recorda tor Elm Fork or Trinity R1.,.er near Carrollton. d1aoharge measurement, and weather recorda. 
TRINITY RIVER BASIN 

Trl nl ty R1 ver a t Dallas, Tex. 

Location .- Water-stage r ecorder, lat. 32°47 ', long . 96°46 ', at Commerce Street viaduct 

In Dallas, Dallas County , st miles downstream trom contluence or west and Elm Forks . Datum or gage 43 368 .14 teet above mean sea level , datum or 1929 . 

Drainage area .- 6,001 square miles . 

Records available .- July 1903 to July 1930, October 1932 to September 1941 (January 1907 to Septembe r 1920 monthly records only , In Water-Supply Paper 850). October 1898 to Decembe r 1899 /gage Mights only) , at sl te 2 miles upstream. July 1930 to Septembet 1932, at site 6 miles downstream. U. S. Weather Bureau has collected gage-he ight records In th is vici nity since 1903. 

Average discharge .- 38 years (1903-41) , 1,433 second-teet . 

!:xtremes.- Maximum discharge during year, 77 ,000 second-teet June 12 (gage height, 42. 90 t eet) ; minimum, 26 second-t eet Oct . 29 . 1903-41 : l'.axlmum discharge, 184,000 second-t eet May 25 (da~e previously published lr. 

error) , 1908 (gage height, 52 .6 teet). trom rating curve extended above 76 ,000 second- teet by logarl thmlc plotting; minimum discharge observed t or periods 1903-6 , 1920-41 , 6.8 second-tee t Sept . 11, 1924 . 

RemarkS .- Records talr. Discharge tor periods or backwater occurring at times or falling 

----stages after tloods ot more than about 15, 000 second-teet computed trom backwater curve based on discharge measurements . Only known dl\·ersl ons are tor muni cipal supply . F'low partly regulated by Bridgeport, E:agle Mounta in, Lake Worth, Mountain Creek , and 

Lake Dallas Rese rve ! rs (combined capac! ty, 777 , 000 acre-teet) . 

Di scharge. in second- teet. water year October 1940 t o September 1 941 

08,) Oct. Nov. Dec . Jan . Feb . War . Apr . llay June July Aug . Sept . 

l 1~2 275 c2 , :s40 S . 290 1 , 050 5 , 560 1 , 380 6 , 120 1 , 520 c7 ,400 2 , 620 !38~ 

2 129 217 2 , 840 6 , 190 11 ~ 4 , 100 1,360 4 , 490 8,030 c7 ,ceo 2,620 3:17 

3 127 184 2 , 730 4 , 160 1~ 100 4 , 050 3~ 4 , 490 15, 600 c8 , 100 2,620 313 

4 1~0 176 2 , 680 4 , 440 6 , 660 4 , 050 1 , 360 4,600 10, 200 o8 , 190 2 , 680 ~04 

5 1~4 174 2 , 620 4 , 600 3 , 020 3 , 720 1 , 180 11 , 600 c6 , 490 c6 , 780 2 , 620 352 

6 135 168 2 , 620 4 , 160 1 , 610 4 , 090 975 16,900 c5 , 780 c6 , 900 2 , 660 925 

7 135 176 2 , 680 3 , 600 1 , 410 6 , S40 2 , 030 11 , 000 13 , 400 c5 , 420 2,510 1 , 160 

8 137 172 2 , 510 3,220 1 , 250 5 , 040 2 , 460 c5, 440 6 , 060 c5, 040 2 , 0'70 1 , 200 

9 130 250 2 , 460 3 , 000 1 , 200 3 , 610 1 , 850 c4 , 710 c:5 , 420 e4 , 380 1 , 680 1 , 200 

10 132 288 2 ,460 1 , 850 1 , :530 :5 , 120 1 ,410 c4 , 490 c6 , 120 3,810 1 , 6:50 1,300 

ll 134 257 3 , 130 1 , 290 1,580 2 , 960 1 , 100 4 , 220 17 , 000 4,520 1 , 200 1 , 280 

12 134 220 5 , 540 1 , 120 1 , 740 2 , 620 1 , 020 4, 050 60 , 300 7 , 160 1,000 1 , 250 

13 135 198 5 , 540 1 , 270 1 , 580 2 , 620 1 , 000 4 , 050 53 , 400 4 , 620 1 , 250 1 , 260 

14 140 192 9 ,140 1 , 180 1 , 680 2 , 460 975 3 , 940 32 , 500 3 , 170 3,500 1 , 250 

15 149 1S4 14, SOO 950 1 , 460 2 , 120 1 , 000 3 , 610 2 4, 600 2 ,S40 1 , 100 1 , 220 

16 135 182 17 , 600 850 1 ,410 1 ,4 60 1 , 050 2 , 730 25 , 400 2 , 840 600 1,050 

17 140 182 17 ,500 825 ,4~0 1 , 120 2 , 250 2 , 290 30, 500 2 , 900 us 900 

18 130 180 e8 , 940 732 1 ,410 925 6 , 580 2 , 070 29 , 200 3 , 060 310 825 

19 1 35 178 c4 , 160 620 1 , 620 666 12, 200 2 , 020 24 , 600 560 232 778 

20 140 188 03 , 4 40 550 3 , 070 512 12 , 000 2 , 590 17 , 500 4 , 660 154 778 

21 151 208 c3 , 610 680 4,520 500 6 , 110 2 , 580 12 , 900 2 , 950 175 710 

22 140 774 4 , 220 532 2 , 470 492 3, 960 2 ,4 60 13 , 100 2 , 7:)0 225 612 

23 134 4 , 850 4 , 160 453 3 , 190 560 9 , 060 2 , 780 13 , 500 2 , 620 355 400 

24 132 5 , 840 4 , 100 411 11, 000 778 1 3, 300 I:g 13 , 600 2,560 560 30'1 

25 137 7 , 570 4 , 000 386 11 , 400 800 13, 100 13, 900 2 , 560 665 242 

26 140 14,500 4 , 860 355 6 , 150 1 , 100 9 , 890 2,340 13,500 2 , 620 !732 376 

27 144 13 , 200 13 , 600 340 9 , 800 1 , 540 6 , 640 2 , 120 13 , 600 2 ,620 !732 BOO 

28 145 c6, 980 17,100 325 9 , 120 1 , 360 6 , 160 1 , 630 17 ; 300 2 , 560 925 710 

29 111 c3 , 480 c9 , 080 304 1 , 360 5 , 780 1 , 410 ell, 700 2 , 560 !620 642 

30 145 c2 , 510 c3 , 860 270 1 , 360 6 , '720 ~0 c8 , 010 2 , 560 !540 680 

31 206 c4 , 600 262 ~30 1 , 360 2,660 f4 42 

Month Second- Maximum Minimum Moan Runoff i n toot-days acre-teet 

October . .... . ... ............... 4 , 290 206 111 138 8 ,490 No vember .... 63 , 953 14 , 500 168 2 , 132 126, 800 

December . .......... . : : : : : : : : : : : : : : : : : ~ : : ~ : : 188 , 520 17,600 2 , 340 6 , 061 373, 900 

------- Calendar year 1940 .. ... . .. . .. ......... .. 564 , 165 1'7 , 600 38 1 , 5U 1.19, 000 

------- - ------ J anuary . ............ ... . ... . . . . ... . .. . . .. .. 57 , 005 8 , 280 262 8~9 113,100 

February ...... . ...... . . . .. . . .. . ... ... . . .... 116, 440 13 , 100 1 , 050 4 , 159 231 , 000 

Warch . ... ... ......... . .... . . . .... .. . . . .... 72,812 6 , 840 492 2 , 349 144 , 400 

Aprll . ......... , ..........•. . •. . ... . . . .... 134 , 250 13 ~00 975 4 , 475 266 ~ 

lla y . ... . . . ... • .•.. .• .•• .. .•• .• ..... . .. . .•. 127 , 930 16 , 900 1 , 360 4 , 127 253 , 700 

Ju.ne ................. . .. .... .. . , ... ...... 521 , 750 60 ,300 1 , 520 1? , 390 1,035, 000 

Ju ly ......... •• • •. , ..•.• • . . • .•. . . .... • ... 130 , 330 8 , 190 2 , 660 4 , 204 258 , 500 

August . . .... . .. .. ..... ... .......... .. ... .. 39 , 345 3 , 500 154 1 , 269 78 , 040 

September .. .... ............ ... ...... ... , , , 23 , 124 1 , 300 242 771 45 , 8?0 

Water year 1940- 41 ······ ···· · 1 , 4?9 , ?39 60, 300 111 4 , 054 2,935 , 00 

Peak disch&r9e .- Dec . 16 (9 p . m.) 18,000 aec. - rt . ; Dec. 28 (10:30 a . m. ) 1? , 500 sec . -ft.; May ( 

(11:30 a . m. ) I , 100 aec .-rt. ; June 3 (11 a . m. ) 16 , 100 sec . -ft. ; June 12 (8 p. m. )?? 000 aec. - ft June 17 (3:30 p. m.) 31 , 000 .sec .-ft . ' 

c 3tage - d1acharge relation at'fected by backwater !rom return flow . 

t Fragmentary gage- height r ec ord ; discharge computed f r om partly estimated gage height . 
TRINITY RIVER BASIN 

Trinity River near Rosser, Tex. 

Location.- Water-stage recorder, l at . 32°25'40', long. 96°27'50', at bridge on State 

Highway 34, 1.4 miles downstream !rom Texas & New Orleans Railroad bridge, 1.9 miles 

downstream !rom East F'ork at Trlnl ty River, and 2.5 miles south ot Rosser, Kaufman 

County . Datum at gage I~ 302 .6 reet above mean sea level , datum or 1929. 

Drainage area .- 8 ,057 square miles . Recoros avallable .- November 1938 to September 1941. July to September 1924 and October 

1924 to September 1925 (gage hei ghts only) , at site 1.7 miles upstream. Ex remes .- Maximum discharge during yea r, 55 , 300 second-teet June 16 (gage height, 39.51 

---reet)· minimum, 127 second-!eet Oct . 30 . 1924 , 1938-41: Maximum discharge, that or June 16, 1941 ; min imum , 34 second-teet 

Sept. 8-11 , 1924. 

Max imum discharge known occurred In May 1908 (gage height , about 33.0 t eet , present site and datum) , according to Information furnished by Corps at Engineers, U. S. Army . 

Maximum stage known, about 42.0 t eet, present site and datum, F'eb. 21, 1938, accordIng to Inrormatlon furnished by Texas & New Orleans Railroad engineers (now was con- tined within levee system constructed In 1916). 

Remarks .- Records good . No dl versions above station except to r muni cl pal supply. F'low 

---paFfly regulated lly reservoirs above Dallas. 

Rating table , water year 1940- 41 (ga.ge height, 1n teet, and dhcha.rge , ln eecon4-teet) 

4 .s 140 13. 0 1 , 980 27 . 0 9 , 000 32 . 0 22,100 5 . 0 206 17 . 0 3 , 400 28.0 10, 000 o 30 , 400 7 . 0 502 21 . 0 5 , 130 29 . 0 ll, 500 38 . 0 48 , 200 9 . 0 890 23 . 0 6,200 30.0 14 , 000 40 . 0 57 , 700 n .o ~0 25 .0 7 , 450 31.0 18, 000 

Discharge in second-teet water year October 1940 to September 194~ 

D~ Oct . Nov . Deo. JIUl. Feb. Mar. Apr. llay June July Aug. Sept . 

1 192 311 9,600 13 . 400 1 , 170 9 , 800 1 , 950 1_2,400 1 , 980 16,700 2,720 846 

2 179 300 7 , 31.0 13 , 400 6,130 9 , 700 1 , 950 10,800 4 , 430 15 , 500 2 , 760 648 

3 163 292 6 , 040 12 , 900 7,590 8 , 280 2 , 010 9 , 300 9 , 100 14, 000 2 , 720 518 

4 157 220 4,980 ll, 300 8 , 440 7, !51.0 2,1?0 8 , 520 9 , 900 13, 200 2 , 680 457 

5 157 206 :!1 , 920 9 , 800 9 , 000 6 , 920 2 , 240 9 , 670 11,200 11,700 2 , 680 427 

6 162 206 3, 360 8 , 840 7 , 690 7 , 280 1 , 980 12 , 200 12 , 900 10, 600 2 , 650 4-46 

7 160 192 3 , 240 7 , 800 4 , 940 9 , 000 1 , 760 12 , 900 15 , 100 9 , 600 2 , 620 917 

8 163 192 3 , 200 6 , 7 40 3 , 680 9 ,400 2 , 730 14 , 000 17, 100 8 , 200 2 , 660 1 , 200 

9 160 227 3 , 080 5 , 760 3 , 440 8 , 8 40 3 , 240 15, 900 17 , 600 6 , 740 2 , 200 1 , 300 

10 153 496 3 , 000 4 , 800 2 , 930 7 , 380 2 , 860 17 , 600 16 , 700 5, 480 1 , 820 1 , 330 

ll 156 412 3 , 240 3 , 210 2 , 480 6 , 090 2,510 16, 500 1 7 ,100 4,840 1, 690 1 , 440 

12 160 397 5 , 720 2 , 340 2,480 5 ,330 2 , 300 12 , 600 16 , 700 5 , 640 1 , 200 1 , 410 

13 160 300 6,440 2 , 140 2 , 540 4,880 2 , 300 10, 000 21 , 900 7 , 640 1 , 000 l ,UO 

14 158 255 6 , 740 3 , 150 2 ,370 4,660 2 ,400 7 , 8 40 41,800 7 , 260 1 , 780 1 , 4.10 

15 162 314 7,960 2 , 770 2 , 340 3 , 920 1 , 820 6 , 010 51 ,400 6 , 900 3,300 1,410 

16 163 292 10, 400 2 , 200 2,170 3,280 1 , 880 4 , 660 54 , 800 4 , 800 1 , 680 1 , 380 

17 162 262 11,900 1 , 680 2,ll0 2,540 1 , 850 3 , 690 54 , 400 4 ,340 780 1,150 

18 158 241 14 , 700 1 , 660 2,080 2 , 080 2 , 860 3 , 120 51 , 000 4 , 480 620 956 

19 156 234 18 , 800 1 , 490 2 , 080 1,820 5 , 670 2 , 860 47 ,:soo 4 , 700 550 868 

20 152 234 20 , 400 1,330 2,700 1 , 520 7 , 380 3,160 43 , 600 4,700 U 2 8 68 

21 156 255 18 , 400 1 , 220 3,840 1 , 300 8 , 280 3 , 920 40 , 000 5 , 080 352 868 

22 165 314 14 , 400 1 , 220 4 , 800 1,220 8 , 680 3 , 880 34, 700 4, 010 · 730 

23 162 3 , 050 11 , 500 1,170 4 , 180 2 , 510 8 , 920 3 , 560 28 , 700 3 , 400 442 b66 

24 158 8 , 360 9 , 4-00 1 , 100 7,650 1 , 760 9 , 600 3, 680 23 , 300 3 , 120 566 ~57 

25 149 9,000 7 , 520 1 , 020 8 , 520 1,690 10, 800 3 , 640 18, 800 2 , 930 1 , 180 397 

26 al52 9 , 700 7 , 100 1 , 000 9 , 000 2 , 180 12, 400 3 , 360 15, 500 2 , 900 1 , 650 367 

2'7 a155 9 ,600 8,360 934 9 ,600 2 , 860 13 , 400 :5 , 04.0 14 ,400 2 , 820 1 , 880 374 

28 a158 9 ,600 9 , 500 890 9,600 2 , 900 14 , 400 2 , 790 14 ,700 2 , 790 2 , 240 602 

29 162 10,100 10,100 846 - 2 , 4-40 14 , 700 2 , 270 15,500 2 , 760 2 , 480 740 

30 141 11 , 000 11 , 900 824 - 2 , 140 14 , 000 2 , 010 16 , 300 2 , 720 2 , 1 40 700 

31 158 - 13 , 400 780 - 2,040 - 2 , 040 - 2 , 720 1,320 

Month Second- Maximum Wioimua Wean . Ruoott 1n t oo t-days acre- roet 

October ....... , ... . . . .... . . ... . . . . , .. . .... . 4 , 949 192 141 160 9 , 820 

November .... . . . . .. .. . . . . . .. ... ..... . .... . .. 76 , 462 11,000 192 2 , 549 151 , 700 

December . ... . ... . . . . . . . . . . . . . . . . . .. . ... . ... 276 , 610 20,400 3 , 000 8 , 891 646 , 700 _ _ T' ___ 

------ --- -- ------ -- ---- Calendar year 1940 ... .. .. . ... .. . . . . .. ... 931 , 969 20 , 400 64 2 , M6 1 , 8 49 , 000 

----- ------ ------ - --- - - ------ January .. ............ .. . . . . ... . . . .•.. . . . ... 127 , 914 1 3, 400 780 4,126 25:5, 700 February . ... . ........... . ..... . ..... . .... . . . 135, 760 9 , 800 1 , 170 4, 848 269 , 300 Maroh . . . .... , . .... . . . .... . ......... . . . . . . . . 143, 070 9 , 800 1 , 220 4 , 616 283,800 April ... . ... . ..•.......•..• . . . ....•..•. . . . • 169, 240 14 , 700 1 , 760 5 , 641 335 , 700 Way .. . . ..... . ............ . •.. . .. ........ .. 226, 920 17 , 600 2 , 010 7 , 320 450, 100 

June . . . . . ................. . . . ..... ..... .... 737,910 54 , 800 1 , 980 24 , 600 1 , 464,000 

Ju-ly . .... . . .•.. • ..•.. . . • . . • ....... . . . . . . . . . 201 , 320 16 , 700 2 , 720 6 , 494 399 , 300 August . ... . . . . . . . ........ . ....... .. .... .... 52,916 3, 300 344 1,707 105, 000 Sept ember . . ........ ... . . . . ... . . .. ... . ...... 26 , 222 1 , 440 367 874 52 , 010 

tlater year 1940- 41 . . . . ... ..... . . ....... . 2 , 178 , 283 54 , 800 141 5 , 968 4, 321 , 000 

Pea.k d i scharge. - Dec . 20 (8 z30 a.m. ) 20 t800 aee .-tt. ; Apr . 29 (6 a . m. ) 14 ( 700 sec .-rt . J 11 ay 10 (10 a . m. } 17,600 aoc. - rt. ; JUne 9 (5 a . mo} 17 , 600 aec . -tt. ; JUne 16 (6 p . m. f 55 ,300 sec . -ft. ; J'uly 1 (6 a . m. ) 16 , 700 aec .-tt. a No gage-ho1ght record; dhcharge interpolated . 

498588 0 - 43 - 4 
TRINITY RIVER BASIN 

Trinity River near -Oakwood, Tex. 

Location.- water-stage recorder, lat. 31°39', long. 95°47', at bridge on U.s. Highways 79 and 64, H mnee upstream !rom International-Great Northern Railroad bridge and 6 

miles northeast o! Oakwood, Leon County. Datum ot gage is 175 .03 teet above mean sea level, datum o! 1929. 

Drainage area.- 12,040 square m1lee. 

Records available.- Jul y 1932 t o September 1941. October 1923 to Jul y 1932 at ei te H 

miles downstream. (Records tor January 1905 to September 1923 published in Water-supply Papers S50 and 878. Figures bel ow 500 second-teet in t hese publications and minimum 

yearly discharge tor water year 1923-24 published in Water Suppl y Paper 678, have been 

round to be in error). u. s. Weather Bureau has collected gage-height records in this 

vicinity since 1904. 

Average discharge.- 16 years ( 1923-41 ), 4,656 second-teet. 

Extremes.- Maximum discharge during year, 70,800 second-teet Nov. 28, June ~i maximum 

gage height, 46,50 teet June 22; minimum discharge, 145 second-teet Oct. . 

1923-41: Maximum discharge, 64 400 second-teet Y~y 23, 1930 (gage height, 46.8 

teet, present site and datum); minimum discharge observed tor period 1924-41, 22 

second-teet Aug. 18, 1934 . Flood ot June 4, 1908, reached a stage ot 52.2 teet, present site and datum, according to l.;ltonnation furnished by U. s. Weather Bureau. 

Remarks.- Records good. No diversions above station except tor muni cipa l suppl y. ----paffiy regulated by reservoirs above Dallas. Flow 

Discharge in second-teet, water yea r October 1940 to September 1941 

D~ Oct. Nov. Dec . Jan . Feb. Mar. Apr . May June July Au, . Sept . 

1 2~ 2~6 .1,400 25,800 1,630 g20,800 ~.~40 16,800 2,~20 ~1,600 2,740 3,~40 

2 21S 768 36,400 26,200 3,8&0 g23 , 300 3,0:W 16,700 2,200 27,800 2,700 2 , 280 

3 218 1,000 29,600 24,200 6,200 g2~,900 4,670 16,200 2,420 26,000 2,700 1 , 480 

4 224 794 26,600 23,000 11,200 g22,200 4,710 14,900 4,300 24,200 2,660 1,050 

6 224 706 22,000 21,700 13,500 g20,200 4,660 lt;,lOO 7,360 22 , 700 2,6&0 794 

6 21~ MO 19,300 20,600 16,600 gl7 , 900 4,240 16,700 ,~4 0 21 , 700 2,630 MO 

7 196 ~2 16,800 19,600 18 ,200 g16,800 3,720 16,500 10,900 20, 600 2 ,830 MD 

B 202 298 14,000 18 , 600 20,600 g16,800 z.~o 17,100 12,300 20,000 2 , 690 g460 

9 208 272 10, 100 17 , BOO 21,500 gl6,200 3,060 18,200 13,600 19,100 2,590 gUO 

10 202 286 6,300 16,800 20, 000 fs16 ,~00 ~.210 20,200 14,900 la,~ 2,780 g9~7 

ll 191 1,ll0 4,850 16,800 16,600 

~r·600 3,670 23,900 16,600 17,600 2 ,680 g1,280 

l2 191 2,000 6 , 270 1",600 11,800 1 , 300 :5,720 27,"00 18 ,~ 00 16 ,700 2,260 gl,~90 

13 191 1,8:50 6,:540 12,100 7,080 4,200 :5,380 2'7,400 20 , 000 16, 500 1, 970 gl,UO 

1. 186 1,670 8,~60 12,100 4,280 ~r·200 2,970 26,600 22,200 14, 600 1,6&0 g1 ,460 

1~ W6 1,100 1.1,000 12,400 :5,460 22,700 2,780 23,900 24,200 14,:500 1,360 gl,490 

16 191 696 1:5,700 1:5,100 :5,210 ~r·•oo 2,780 22,200 27,400 14,800 1,600 g 1 ,490 

17 we 480 14,800 14,100 3,090 5,800 :5,:510 21,000 30,200 1~,600 ~.060 g1,620 

18 lB6 422 15,700 14,400 2,900 9,970 4,160 19,600 ~1 600 16,700 :5,200 gl,490 

19 191 ~98 16,700 13,000 2,820 6,210 4,470 18,:500 41,100 17 ,800 1,860 g1,UO 

20 202 360 17,600 8,760 3,090 !,830 4,060 16,800 68,800 18,400 1,050 gl,2~ 

21 186 318 18,200 4,640 :5,400 3,060 4,900 11,400 67,700 18,:500 816 g1,080 

22 161 790 18,800 2,820 6,320 2,690 6,840 7,500 69,~00 16,600 706 g980 

23 149 11,000 18,~ 2,290 7,:520 2 , 480 8,020 6,760 63,200 11,600 618 g908 

24 149 20,600 18,800 2,2~0 ~~·600 2,420 8,eao 6,920 67 ,400 a.~oo 838 g920 

25 149 22,200 18,:500 2,160 :5,400 3,720 9,830 6 ,640 50 ,800 8,090 816 gl,230 

26 1M 26,200 lB,900 2,030 ~~4,900 6,370 11,200 ,~2 0 44,200 4,100 1,380 966 

27 1&7 47,400 20,800 1,920 ~~~6,600 4 , 990 12,500 4,290 41,400 3,340 1,620 728 

28 17~ 69,300 22,200 1 , 890 gW~400 4,160 1:5,700 ~.8oo 36,200 3,090 1,880 640 

29 182 ~,200 23,900 1,830 4,290 14,600 :5,380 34,600 2,9~ 2,450 g674 

~ W2 49,600 26,200 1,710 - 4,470 15,500 3 , 090 33,800 2 , 820 3,130 g641 

31 196 - ~6,000 1,600 - 4,020 - 2 , 700 - 2,740 3,7&0 - llonth Second- Maximum tUn1aUJD lie an Runoff in toot-day a acre-teet 

October . .. . ...... . . . ..........•. ........... 6,862 224 U9 189 11,630 NoveB-er . .. . . ............ . . . ..... . ......... ~24,724 69,300 236 10,820 644,100 O.oe8ber ... . . .. . .................•..•...... 664,920 41,400 4,850 18,220 1,121,000 

------- ------ ------ ------ ----- - Calendar year 1940 ...................... 1,886,289 69,~ 141 6,161 :5,740,000 

------ - ------ ------ --- -- - January . . . .. . . . ... ·'· . .. ··· • · · · · · · · · · • · · · · · 368,670 25,600 1 ,600 11,890 731,000 

february .. ....... . ... . ........... . . . ....... 28~ 260 21,500 1 , 630 10,120 661,800 

March . . ... .. . . . .... . .... . . . .... . .... . . . . . . . 400,170 24,200 2,420 12,910 793 , 700 

ApriL . . ....... ... ......... . ........ . ...... 178, 980 15,600 2,780 5,966 :5&6,000 

May ...... . ............ . . . .... . .. .. . . .. . .... 451,200 27,400 2,700 14,560 894,900 

June . . . .... . ....•............. o •• o • •• •••••• 868,34:0 69,300 2,200 28,940 1,722,000 

Ju1t ... . .......... . •....... . ..•. .. . .. ..... . 472,610 :51,600 2,740 15,240 9:57,200 

Aucuat .. .. . ............................ , ... 66,244 3,780 618 2,106 129,400 

Septe•ber . ... . .......... .. . . . .. .. o • • • ••••• • M-,87, 3,340 4~0 1 , 166 ea,77o 

Water year 1940-41 ··· ····· ······ ····· ··· 4,018,464: 69,300 149 ll,010 7,970,000 

& Ocaputed tr~ graph baa•d on gage read1.nga turniahed. b7 Oo s. Weather Bureau. 
TRINITY RIVER BASIN 45 

Tr1n1 ty River near Midway, Tex . 

Location .- W!re-we!ght gage, lat. 31 •04•4o•, long. 95°42'00", on bridge on State Highway 21, 5 mllee northeast or Midway, Madison County , and 8 miles downstream rrom Boggy Creek. Datum or gage Is ll7.s. reet above mean sea level , datum or 1929. 

Drainage area.- 14 ,390 square miles . 

Records available .- April 1939 to September 1941. 

Extremes.- Maximum discharge observed during year, 66,200 second-teet June 26 (gage height, 45.90 teet); m1n1mum observed, 186 second-teet Oct. 26, 28 . 1939- 41: Maximum discharge observed, that or June 26, 1941; m1n1mum observed, 100 

second-teet Oct. 4, 1939 . Maximum d!eoharge known occurred In May 1890 (gage height , about 45 .0 teet, discharge not determined), according to 1ntonnat1on rurn!shed by l ocal r esidents. 

Maximum stage known, 46. 7 teet May 27, 1930, !rom !loodmarks (tlood was cont!ned 

w1th1n levee system constructed In 1916). Flood or June 9, 1908, reached a stage or 44 .3 teet, !rom !loodmarkB and 1ntonnat1on turn!shed by l ocal residents . 

Remarks.- Records good. Oage read twice dally, oftener during h!gh stages . Flow partly -regu:Iated by reservoirs above Dallas . 

D1eoharce in eecond-teet water year October 194.0 to September 19-4.1 

Day Oot . Nov . Deo . Jan . Fob . Mar. Apr . !lay Juno Ju.ly Au&. Sept . 

1 296 ~26 48,800 26,•oo 2,S20 17,400 6,1QO lS,VOO ~.760 •e.~oo 3,430 ~.uo 

2 28Q ~62 68, 200 2lS,eoo 5,760 18,000 4:,860 1•,soo 3,380 «,400 3,320 ~.660 

3 27Q no 68,200 26,800 4,760 18,900 4,470 u,8oo 3,100 4.1,200 3,260 2,9-40 

4 271 906 48,800 26, 000 8,790 20,000 &,no 1,,900 ~,160 39,4.00 3,210 2,010 

5 2M 1,060 4.3,900 2&.,100 11 ,100 20,800 5,970 17 ,ooo 3,990 37 , 200 3,180 1,4~ 

, 6 26Q Q06 •o,Qoo 28,000 12,QOO 22,300 5,710 1Q,800 2~ 36,200 ~,160 1 ,060 

7 2H 786 38,800 2-6,800 14,200 26,100 6,450 19,800 8,2~0 ss,ooo ~.160 e•6 

8 26Q M6 se,t.oo 26,200 15,600 2'7 ,200 5,010 19,100 9,~ ~.eoo 3,160 A26 

9 2•Q 5~ 33,700 24,600 18,700 28,600 4,6:50 18·,200 10,700 30,200 3,210 66 

10 e.2 5~ 200 23,&00 18,000 24 , 200 3,870 17,.00 12,000 28,400 3,100 M6 

11 247 486 27,~ 22,400 lQ,OOO 21,QOO ~.Qao 17, 300 16,&00 2&, 700 3,160 746 

12 e•4 570 22,•oo 21,100 1Q,•oo 20,200 •,2QO 17,700 17 ,BOO 26,300 s,1eo 1,200 

13 2•o 1 ,660 19 , 000 19,600 18,800 lQ,lOO 4,410 18,&00 18, eoo 24,200 2,'170 1,~0 

14 225 1 , 960 16,500 20,500 16,.00 19,000 .,170 19,700 18 ,300 23,200 2,380 1,430 

1~ e•Q 1,810 16,100 21 , 600 Q, 020 1Q,4oo ~.e2o 20,800 18,.00 22,800 a,uo 1,620 

16 247 1,480 18 , 700 20,900 &,380 1Q,eoo ~. 600 21,&00 18,800 20 , 800 1,760 1,eeo 

17 242 1,060 18, 700 20,300 .. ~ 20 ,300 3,480 22 , 000 19, 700 19 , 000 1,&10 1,810 

18 2~ 765 18, 100 19,000 4,230 20 , 700 3, 700 22,000 20,700 17 ,300 2,600 1 ,&10 

19 2~· 606 17 , 600 17 , 400 ,~0 20 ,400 4,770 21,800 21,700 16,600 3,380 1,&&0 

20 227 55~ 17,400 16., 000 7,9&0 18,600 4,8~ 21 ,400 22,700 16,600 2 ,660 1,eeo 

21 227 ~6 17,400 13 , 700 9 , 490 1ol,l00 •,no 21 , 100 e•,ooo 17 ,200 1,660 1,380 

22 236 486 17 .~ 00 9 ,4 30 2~ 8 , 2&0 4,960 19,&00 26,800 17,QOO 1 ,1&0 1,200 

23 2~6 ,~0 17,400 &,8150 8,280 6 , &80 6,160 1&, 000 28,Qoo 18 ,300 986 1,070 

24 216 28 , 600 17,600 6,670 12,300 6,260 ~:~~ 11,000 34,300 17,200 826 1 ,1&0 

26 19. 4 1,800 18, 200 5 , 520 16 ~ 4,830 ~ 60,000 14,300 826 l,MO 

26 186 46,800 1Q, 800 4 , 690 16,200 . , 8QO 8,~~ 7 ,.60 66,200 p,e•o ~26 1,1520 

27 1QO 47,000 23,400 3,930 1&,900 &, 100 :~ &,820 ~.eoo e,&eo 1 ,090 1,MO 

28 187 46,600 26, 400 ~.6oo 17 , 200 &,360 10, ioo ~~ 6Q,600 4,830 1 , 620 1,000 

29 1Q7 43,400 26,700 ~.~eo - 6,710 M,OOO 4,110 1,710 826 

~ 216 •~.Qoo 215 , 700 3,160 - ,~20 ~:!oo !:~g 150,000 3,7&0 2,280 766 

31 26Q - 25,400 2 ,Q.O - 15 ,&80 - - 3,MO 2,940 -

llontb Seoond- Maxiaua. lllin1•ua lloan Runoff in foot.-daya aore-teet 

Ootober . . ........... . . . .. . . . ...•........... 7,446 296 186 2•o 14,7?0 

Noveaber .. .. .. .. .... ........ . ... . . ......... ~~.476 47,000 ~26 10,780 841,&00 

O.oeaber .. . ...... . . , ........ . . .. ..•........ 862 , QOO 68,200 16 ,100 27 ,s•o 1 ,ne,ooo 

------- ------ ---- -- ------ ---- -- Calendar year 1Q•O .... . . . , . . , ........... a,M4,241 68,200 186 6 ,.06 .t,e60,000 

---- --- --- --- ------ - ----- -- --- - ~~~!1 :: ::::::::::::::::::::::: :::::::: 616,~110 26,100 2 , Q.O 16,620 1,022, 000 

~2.,670 19,.t00 2,820 1l,6QO M3,800 

Maroh .. ...... . ... . ...................... .. . .Q2 ,6QO 27,200 4,830 l6,8QO Q77,000 

April . ...... ........ • . .•.••.......• . .. • . ..• 176, Q60 12,400 3,480 6,866 349,000 

IIO¥ . ........ ' .•..•..••. • .. ' . • .••.. • •. .. . • . • 481,1190 22,000 4,110 16,~0 QM ,600 

~~1; :::::: ::::::: :::::::::::::::::::::::::: 712,080 66,200 ~.1oo 2~ . ,.0 1,4.12,000 

6Q6,Q•o 46,300 ~.5.0 22 ,.80 1,382,000 

~~~:!b• :::::::: ::::::: ::::::::::: : :::: 73,680 3,430 826 2,~77 H6,100 

43,676 ~.660 M6 1,4&2 ee,~ 

Water JO&r 1Q•0_.1 ····· ········ ······ ··· 4,70Q,826 61'>,200 186 12,i00 9,3411,000 
TRINITY R!Vffi BASIN 

Tri ni ty Ri ver a t Rive rside, Tex . 

Location.- Wire-weight gage , lat . 30°52 ', long . 95°24' , on bridge on State Hi ghway 45 , 1, 200 reet upstream !rom bridge or International - Great Northern Ratlroad , 0 .5 m!le north or Riverside, Walker County, and three-quarters or a mile downstream rrom Harmon 

Creek. Prior to May 7, chaln gage at slte 1, 200 rest downstream at same datum. Datum or gage ls 89 .85 reet above mean sea level, datum or 1929 . 

Drainage area .- 15,510 square mlles . 

Records available .- January 1903 to December 1905 , October 1923 to September 1941. U. S. 

Weather BUreau has collected gage-height records ln this vicinity since 1903 . 

Average discharge.- 21 years (1903-5, 1923-41) , 6, 579 second-feet . 

Extremes.- Max imum discharge observed during year, 52, 200 second-teet Nov. 26 (gage height , 40.09 feet) ; minimum observed , 240 second- teet Oct. 28 . 1903-5, 1923-41 : Maximum discharge observed, 75 ,100 second-feet June 1, 1929 (~ge 

height, 45.5 t eet, present srte and datum) ; minimum observed , 70 second-teet Aug . -0-26 , Sept . 8-13, 1925, Sept . 29 to Oct . 4 , 1931 . Maximum discharge known , 85 ,500 second-teet June ll, 1908 (gage height , 50.1 feet, 

present s i te and datum) , !rom rating curve extended above 78 , 000 second-feet. 

Remarks .- Records good except those !or periods below 3, 000 second-feet in August and 

-september and during backwater etrect, which are poor . No diversions except tor municipal uses . F'low partly r egulated by reservoirs above Dallas. Gage read twice dally. 

Cooperation .- Gage- he i ght record collected in cooperation with the u. S. Weather Bureau . 

Discharge , in second-teet. water year October 1940 to September 19tl 

DaJ Oct. No·v . Dec . Jan . Feb . Mar. Apr. May June July Aug . Sept . 

1 308 940 44,700 27 ,800 3,470 1S, 200 5,7~ 17 ,400 4,650 47 .~oo 3,640 3,290 

2 305 940 43,200 27 . 200 13. 900 18.200 5,46 15,800 3,710 47,500 3,570 3,780 

3 305 632 43,400 27,200 12,300 18, BOO i~ 15,400 3 , 290 46,400 3,500 3,710 

4 299 553 44, 900 26,900 12,000 19,500 5,2 .i~jgg 3,080 45, 800 3,430 2 ,940 

5 302 1, 770 46 , 200 26,900 12, 700 20,300 6, 51 3 , 150 44,500 3,360 2 , 090 

6 290 1,780 46, 600 26,600 13,200 22,800 6,2!g c21,~~ 4,8~ 42,600 3 , 360 1,550 

7 285 1,290 47, 500 26,600 14.600 30,300 6,06 o21, 70 9,!~ 41,000 3,430 1 , 210 

8 285 1,030 46,000 26.300 15,600 31,100 

:~ ~ o20 ,s

00 10,~00 38.700 3,430 1 , 080 

9 285 910 44,000 26 , 900 16, 800 30 , 300 3&, 800 3,600 992 

10 280 1,030 41,300 25,200 17 , 600 f27. 500 4, 600 :~: ;~ i:;goo :s3,300 ,430 948 

11 275 910 38,700 24,300 18,500 

~~~:m 4,~~ 18,~~ 31 ~~ ,800 3,360 948 

12 270 910 48,400 23,200 19,300 4 ,3 31 ~00 30 , 000 3,360 1 , 160 

13 285 1 , 180 51,500 22,000 19,600 ~21,300 4,~~ ~~ :~ 30, 000 3 , 290 1 ,460 

14 275 2, 200 48,800 24,900 18, 600 21,000 19, i§C ~:!~ 28,800 2 , 940 1 , 610 

15 285 2 , 550 42, 600 26 , 900 14,800 2(},800 ::goo 20,20 21,600 28,200 2,530 1 , 670 

16 290 2,060 38.700 27,500 8,450 21,200 3,9~~ ~~:~~ 20,000 26,100 2,210 1,790 

17 285 1,640 33, 800 

~:~ 5 ,460 22, 100 :5,70 20,200 23,500 1,910 1,850 

18 280 1 ,150 30,600 4 , 600 22,400 ~:; 22,~~ ~~:~ 20,800 1,910 1,790 

19 260 910 26,300 20,800 4,380 ~22,500 18,SOO 3,010 1 ,790 

20 260 725 22,700 18, 800 8,110 <>23,800 4,75o ~~:~ 22 ,400 17,500 3,500 1 , 790 

21 275 655 20 , 600 17,100 13,200 o23 , 400 l~g 24,~~ 23,2~ 17,300 2,600 1 ,670 

22 275 632 19,500 14,000 13,000 18,600 ~~:~o 17,600 1, 790 1,050 

23 275 9,030 19 ,400 8,850 13,000 11,500 ~:i;~ ~~:~§( 17,900 1,430 1,380 

24 285 34,200 19,300 6,600 18, 200 7,320 8,~~ 15,90 27 ,3~~ 17,900 1,670 3 ,500 

25 275 47,900 19 ,61')() 8 , 550 19.000 5, 790 8,5 11,20 29,80 16,800 1 , 670 2,870 

26 255 51,900 22 , 700 6,060 20, 000 5,140 9, ~2 e.!~ 33,~~ 13,4~g 1 ,380 2,660 

27 255 51. 900 28, 000 4,900 19. 800 5,700 9,6~0 7 ,3 8,7~0 1,350 2,150 

28 245 so. 600 29,800 4,150 18,600 6,780 10,~~ 6 , 37 ~r:~oo 5,~~ 1 ,,30 1 , 670 

29 412 48, 800 30,100 3,780 - 6,690 iUoa ~::~ :::~gg 4, 5 1,790 1 ,280 

30 436 46, 800 29,700 3,480 - 5,880 4::g ~:~g 1 , 110 

31 436 - 28,400 3,250 - 5,620 - 5 , 36 - 3, -

Month Second- Maximum Minimum lie an Runott in toot.-da.ys acre-teet 

October .. ..... . . . . . . . . . . . . ·· ··· ·· ···· · ... .. 9, 173 436 245 296 18,190 

November ..... .. ...... . . ..•.. . ... .•. . •...... 367,527 51,900 553 12, 250 729 , 000 

December .... . ..... ...... .... ... . .. . . . ...... 1, 097, 100 61,500 10,300 ~5 390 2,176,000 

--- ---- --- --- ------ ------ ------ Calendar year 1940 ....... . . . . . •. . . . ..... 2,861, 137 51,900 230 7,817 5 ,675,000 

------- --- --- ------ --- -- - January . ...... . . . .. . ..... • ................. 585 ,520 27 ,800 3 , 260 18, 890 16-1 ~000 

February .. . ...... . ..... . . ....... .. ........ . 388,670 20,000 :S, 470 13,880 770 ,900 

lla.roh ... . . .. .. . . .. . . ................ . ...... 561,020 31,100 5, 140 18,100 1, 113, 000 

April .... ... . .. .... •.....•..•..•..•. . ... . .. 188,170 14,400 3,700 6 ,272 373 , 200 

May .. .. ....• . .•..... . .•..•..•.. • .. . .... .... 520 , 970 24 . 600 5 , 360 16 , 810 1 , 033, 000 

June ....... . . . .. . ........ ...•....... . .. .... 6 47,600 46, 200 3, 080 21,590 1, 284,000 

July . ........ . • .... . .....•..•............ .. 805,500 47 ,500 ~,850 25,980 1, 590, 000 

August . .. . . ....... .. ... ...... ............ . . 82,530 3,640 ~50 2,662 16~. 700 

September . ..... . .. . ... . .............. ... . . . 57,268 3,780 948 1,909 113,600 

Water year 1940-41 ...................... 6 ,311,048 61,900 245 14,650 0 , 530 , 000 

c Backwater from 'hntabogue Creek, 10 m.11ea downatreUI; discharge computed on baah ot dhcharge ZDOaaurementa , engineer's notes, and we ather recorde. 
TRINITY RIVER BASIN 47 

Trinity River at Romayor, Tex. 

Location.- Chain gage, lat. 30°27 ', long . 94°51', on bridge or Gul!, Colorado & Santa Fe 

Riillway, a quarter or a mile west or Romayo r, Liberty County, and 2t miles downstream 

!rom Big Creek. Gage read i ngs Indicate distance !rom base or rail to wate r s urface . Datum or gage (base or rail ) Is 89 .62 r eet above mean sea level , datum or 1929. 

Drainage area .- 17 ,190 s quare m!les. 

Records available.- May 1924 to September 1941. 

Average discharge.- 17 years, 7 , 297 second-!eet . 

Extremes .- Maximum discharge observed during year, 61, 200 second-!eet Nov. 26 (gage he i ght, - 18 .70 !eet); minimum observed, 400 second-!eet Oct . lo-28 . 1924-41 : Maximum discharge observed , 81, 100 second-feet May 31 , 1929 (gage he i ght, -16.3 reet) , !rom rating curve extended a bove 60, 000 second-!eet; min imum observed , 132 

second-!eet Aug . 21 , 22, 1925 (gage he ight, - 53 .46 r eet) . 

Remarks.- Records !air. Gage r ead twice dally. No diversions or consequence except !or 

--muniCipal uses . Regulation same as that !or Trinity River at Dallas. 

Discharge . i n second-teet, water year October 1940 to September 19·4.1 

Da~ Oct. Nov . Dec . Jan . Feb. Mar. Apr . llay Juno July Aug . Sept . 

1 496 756 52,SOC 3::5,400 4 . 570 20; 100 6,000 1e,eoo 8 ,130 38,700 4 , 120 2 , 090 2 448 870 50 , 900 31,700 11,600 19 , 000 5,800 18, 800 6,400 40,700 3,870 2,610 3 424 1,000 49,300 30,600 21,200 18,4-00 5,700 16,900 5 , 110 42,000 3,630 2,720 4 424 1 ,050 48,500 ::50,100 19,600 19,000 7,360 15, 800 4,300 43 , 400 3,650 3 , 790 5 424 830 47, 000 29,800 16.600 19,300 6 , 100 18,200 3,790 44,100 3,470 3,470 

6 424 870 46,600 29,100 14 ,900 21,200 6,100 31,200 3 , 870 44,100 3,470 2,720 7 424 1 , 460 46,600 28,600 16,000 28,600 6,500 36,300 14.,800 · ·3,800 3 , 390 2,150 8 424 1,550 47,800 28,400 16,800 34,000 6,100 3'1, 200 24 ,400 4:5,400 ~.630 1,790 9 424 1 , 140 48,200 28.100 16.400 36,600 6 , 000 ~3, 700 19,100 4.2,400 ~.550 1, 440 10 400 1,050 47,800 27,600 16,900 37,500 5 ,500 28,800 15,400 41,000 550 1 , 240 

11 400 1,0SO 47,400 26,700 17.900 36,900 5,020 24 ,200 26,200 3g.ooo :5,710 1,140 12 400 1,610 50,900 28 ,:500 18,800 34 , 800 4,480 20,500 ~6,:500 :57,800 ~,470 1,100 13 400 1,340 66 ,600 25 , 000 19 .600 :51 ,200 4.210 19,000 38,700 36,400 3,390 1,100 14 400 1 ,100 69,100 24,200 19 . 800 26.700 4,210 18, 800 38,100 :54, 000 :5,300 1 , 290 1~ 400 9&0 eo, 100 28, 400 10 , 500 , BOO 4,300 10,100 .34 , 800 33, 100 3, 230 1,4f0 

16 400 1 .490 67.400 30, 600 16, 200 22.300 4,:590 19.800 30,900 :51,400 2,930 1,550 17 400 1 ,610 54,900 ~2 800 11,600 21,700 4. 030 20,600 25,800 ~,400 2 , 650 1,730 18 400 1 .670 52,100 32,800 7 ,680 22 ,300 3 , 710 21 ,600 22,800 27.800 2,390 2,160 19 400 1 , 340 48.900 29.100 6,:500 23,000 3,630 21,900 21,200 26, 000 2,160 2,030 20 400 1, 060 44,800 26, 100 8 ,440 26 , 100 :5,6:50 22,300 21 , 200 20,800 2,150 1 , no 

21 ,00 870 38,400 21,900 17,400 31,200 4,210 24 ,000 21,600 18, 300 3, 230 1,790 22 400 790 32,300 19,100 18,100 :52,000 4.840 26,900 22.800 17,100 3,230 1 , 730 23 400 790 26,700 16, 600 17 , 800 26 , 300 6,520 26 , 100 23,600 18,900 2 , 580 1,670 24 400 27,~00 2:5,000 12.100 17, 800 18,600 17,200 23,800 24,400 16,900 2, 030 4,7:50 

2~ 400 67 , 000 22.300 10 ,1 00 23, 000 11 , 300 16,000 19,100 25,200 17,100 1~670 9,840 

26 400 60,800 21,700 12,800 23,000 8 , 130 11 , 600 1:5,400 26 , 500 16,800 1,670 7.160 27 400 5g , soo 26, 700 10,400 22,300 6 , 920 10,300 10 , :500 28 , 600 14,000 1, 730 4,760 28 400 57.800 31,200 7,690 21,600 6,:500 10, 100 8 ,900 31 , 700 10,300 1,550 3,870 29 496 65, 800 :5:5,400 5 , 900 - 7,140 10,800 8,680 34,800 7,250 1 , 550 2,930 30 520 64 , 500 34,200 5,110 - 7,260 13,800 8 , 680 36,900 5,400 1,550 2 , 150 31 546 - 34, 000 4,660 - 6,600 - 9,240 - 4, 390 1,850 - Month Second- llaxiau. IUni.ua lie an Runorr in toot-days aore-teet 

October .. .. . .. .......... . .... . . . ..•..•. . . . . 13 , 0'73 546 400 422 25,930 

No veaber ... ... . . .......... •. .............. . 398,945 60.800 756 13, 300 791 ,300 

December ... . .. . . ..... .......... . . . . .... . ...... 1 , 340,:500 59, 100 21,700 43,240 2, 668,000 

------ ------ ------ ------ -- -- -- Calendar year 1940 ...................... 3, 277 , 124 60,800 400 8 , 954 6,500, 000 

------- ------ ------ ---- -- --- --- January .. . . . . ... . . .. . . .. . .•.. . . · · · • · · · · · · · · 705 ,560 ~.too 4,660 ~~:1~ 1,399,000 

February .. . . .. . ... . ... . . . . ... . ...... . . . . ... 459,090 23 ,000 4,570 910,600 

MArch ..... .. .. . ... . .. . . . . . . .. ... .. . . ....•.. 684,240 :57,500 6 ,300 22 , 070 1,357, 000 

April . ... .. . . .. • .. • . ... . •. . . . •. . •.. . . . . . •. · 208,230 17,200 3,6:50 6,94_1 413,000 

May . .. . ... .... .•..•.. . .... . . . • . .•.. , . . .. •.. 642,600 37,200 8,680 20 , 730 1 , 275, 000 

June . ...... .. . . . . ..... . .... . ... .. . . .... . . . . 677' 400 58,700 3, 790 22,580 1,344 ,000 

July . . . . .. .. . ..•. . • . . . ....•.. . ... .. .....• .. 882, 740 44,100 4,390 26,480 1, 751, 000 

August ......... . . . . .. . . . . ... .. .. • . . ... . .. . . 88,330 4,120 1 , 560 2 . 849 175,200 

Septeaber ..... .. .. ......... .... ····· . . . .. . 79 , 980 9,840 1 , 100 2,666 158,600 

Water yea r 1940-4 1 ....... ... ....... ... .. 6, 180.488 60,800 400 16,930 1.2,260,000 
48 TRINITY RIVER BABIN 

Trinity River at Liberty, Tex. 

Location.- Start gage, lat. 30°03 ' 25" , long. 94°49 ' 06", on bridge on U. s. Highway 90 in 

Liberty, Liberty CoWlty, 450 teet downstream rrom Texas & New Orleans Railroad bridge. 

Datum or gage is 2.22 teet below mean sea level, datum or 1929. 

Drainage area.- 17,500 sQuare miles. 

Records availabl e.- October 1938 to September 1940 (discharge 1:1easuraments an<! some rec- oroe o! dally discharge ), October 1940 to September 1941. U. S. Weather Bureau has 

collected gage-height records in this vinicity since 1903. 

Extremes.- Maximum discharge observed during year, 61 ,500 secon<l-teet Dec. 16-16 (gage fie1g!it, 27.1 teet); minimum discharge not determined (atrected by tides); minilll.llD gage 

height observe<!, 2.6 teet Oct . 16 . 1936-41: Maximum d ischarge observe<!, that or Dec. 16-16, 1940; minimum discharge not <leterm1ne<l (attecte<l by tides); minimum gage height observed, 2 .5 teet Nov. 4, 

1939. 

Ma.x1mum stage since 1903, 26 .6 teet May 6-11, 1922, according to information furnished by U. s. Weather Bureau. 

RemarkS.- Records poor. Dis charge not computed below 4,200 second-teet because or ertect ----ortrdes on the stage-discharge re lati on . Gage read once dally. 

Cooperation .- Gage rea<lings furnished by U. S. Weather Bureau . 

Disoharce . in ••oond-teet, water year October 1940 to September 1041 

D~ Oot . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

Hov. Deo . Jan . 

6e , 600 36,700 58,500 33,700 64., 000 33,700 

61,600 3:5,700 

64,000 33,700 

61 ,600 32,600 

61,600 31,600 51,500 30,700 49,000 30,100 49. 000 30,100 

61,600 29,500 H, 000 29, 000 

58,500 28,400 58,500 28 , 000 59. 000 28, 000 

Feb . Mar . 

4,480 23,800 

5, 480 23,000 13,300 22,200 19,500 21,700 19,800 21,500 

19,100 21 , 300 18,200 22,400 17, 800 24,700 17 ,800 28,400 

18,000 28,000 

18,400 29,500 18,900 30,700 19,800 31,500 

20, 200 :5<>, 700 201 BOO 30, 100 

Apr . 

7 ,9&0 15,900 7 ,150 1S, 000 7 , 350 18, eoo 7 . 250 18,200 7, 950 18, BOO 

e, 950 20, eoo 7, 060 2~ . 200 7. 350 25,800 8,950 27,800 

8,&60 29 , 500 

8, 290 31, 500 6, 880 36,000 

6,110 28,000 

'· 900 24,700 4, 900 22,700 

June J uly 

12,200 27,600 10, 100 29,, 000 7,860 30,700 

8, 200 33,700 6 ,0o60 39,000 

4, 830 4.1,600 

7,070 41,&00 

20,100 39,000 23,000 41,500 23,000 41,500 

23,600 4-t,OOO 25,9oo u,boo 29 , 000 41,600 

32,600 30,000 

35,000 39. 000 

8, 020 6 , 180 4,780 

,,,eo 

,,270 

4, 200 

4,200 

Sept . 

16 

17 

18 

19 

20 

&1, 600 28-,000 

e1, 500 2&, 400 81 ,500 29,000 66,600 2e, 600 66,600 &), 700 

20,800 28,400 18,800 27,200 15,200 27.200 10,500 26,QOO 

a,1eo 2e, 400 

6,04.0 21,600 :56, 000 36,700 

·-- 900 21,300 33,700 36,000 4, 690 20,800 32,600 32,600 

4,480 21,000 :50,100 31 , 600 4,200 21,000 28,000 29,600 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

54,000 

51,600 

46;600 

U,OOO 24, eoo 33,100 

32,500 30,700 49,000 29,500 66,600 29,000 59. 000 30, 100 58,500 31,500 

36, 700 

llontD 

29,500 

28,400 

25,800 

22,200 

18,400 

15,200 

14,300 

11,800 

8,180 

e,2oo 

5,0t0 

10, 000 18,300 

18,000 

lQ, 100 20,200 

22,400 

23,200 

23,100 

Ootober .... . .. . .................. .... .. .. .. Noveaber 28-~ ... . ........ . ...•.. ..... . ... Oeoeaber ...... . . . ...... . ...... . . . .... . 

Calenda_r )'ear 1940 .... .. .. . .... . . . .. ... . 

J&nU&I'l' . .............• ...• ..••.• . . . . . • . . .. • Febru&f'7 . .. 1 •• • • • ••• ••••• •••• •••• •••••• ••• • 

llaroh ... .... ... •. •. . • .••... . .• . ••.•... . . . . . April ...... .. .... • ..•. .•.... . ..•..• ... ....• Jla7 . ..... . ....• •• ••.••.•. . . .••.•. ... . .••. .• June ................ . .. .. ....... . . ....... .. . Jul y .................. . .. ... . . .. .......... . Au'"ot .................... ..• ..•. ..... . .... Sept .. ber 24-30 .... . . .. .. . .......... . .. . 

Water :rear 1G40-4l ........ , . ..... . .. . 

27 , 800 29,000 

:so, 100 29,500 

28,400 

21,500 

17,000 

12,700 

10,300 

9·,080 

8,t90 

4,200 

4,660 

6,940 

9,940 

18,000 

17,300 

14-,600 

12,200 

11,800 

12,700 

21,300 

21,500 21,900 

22,200 

21,900 

21 , 000 18,800 

16,800 

13,600 

13,600 

12,400 

Seoondroot-<iayo lluiaua 

278,100 1,614,200 

7~~.600 

477,120 

744,270 

233,800 

887,100 

872,~0 

945,550 

6G, 6:50 

59,000 

81,600 

38,700 

23, 500 31,600 

18,000 

35, 000 38, 000 

44~ 000 

1&, eoo 

26,800 

25,000 

24,100 

23,500 

23,600 

23,800 

24,400 

25,300 

26,600 

25;900 

M1n1.ua 

24,800 29,000 

6,040 

4·,480 

8,490 

4,200 

12 ,400 ... ~o 

7,660 

4,340 

27,800 

25,000 

22,700 

21,700 

20,800 

20,400 

19,300 

17,600 

14,400 

10,900 

7,660 

..... ., 

45,650 

48,860 

2&, 790 17,040 24 , 010 

7~ a 

21,520 

22,410 

so,eoo 

8,&04 

8,380 

10,800 

13,800 

10,800 

7,960 

4,340 

Runott in aore-teet 

551, &00 3,00~,000 

1,~e,ooo 

948,400 1..,47& , 000 483,700 

1,323,000 

1 , 3:53 , 000 1, 87&, 000 

118,100 . 
TRINITY R1 VE:R BAS IN 49 

Big SanOy Creek near Br10geport , Tex. 

Location .- Water-stage recorder, lat. 33°13', long. 97°41' 1 at br10ge on State Highway 

24, 1.9 miles upstream from Turkey Creek, 4.4 miles ups'tream rrom mouth, anO 5 miles 

east or Br10geport, Wise County. Datum or gage 1s 727 . 44 teet above mean sea level, 

oa tum or 1929. 

Drainage area . - 276 square miles. 

Records available.- October 1936 to September 1941. 

Extremes.- Maximum 01scharge Our1ng year, 53, 000 seconO-teet June 10 ( gags height, 15.69 

teet, trom tlo0<1mark), from ret1ng curve extendeO above 22,000 seconO-teet on bae1e or 

logarithmic plotting; no tlow at t1mee. 

1936-41: Maximum 01scharge, that or June 10 , 1941; -no t low at times. 

Remarks.- Records tal r except those t or periods or no gage-height record, which are poor. 

~versions above station. 

Dieoharce. in eeoond-teet , water year October 1940 to Soptombor 1941 

Day Oot . Nov. Dec . Jan. Pob . 

1 0 58 48 851 2 0 H 77 2.210 3 0 ~6 eo 1, 510 4 0 32 50 352 6 0 28 ~5 168 

6 0 26 29 llO 7 0 24 27 91 8 0 21 25 77 9 0 20 24 66 10 0 18 21 60 

ll 4.2 23 20 55 12 r9.l 32 20 51 13 r5.3 34 22 49 14 r4.~ ~4 28 43 15 r2 . 9 521 26 ~9 

16 r2. 2 1 , 280 24 ~ 

17 r1.s 49~ 23 ~6 

18 a.s 148 18 35 19 a.e 87 al8 38 20 aO 85 ale 58 

21 al.3 48 al6 178 22 a45 

;gl al5 llS 23 g480 al5 Q4 

24 gl ,l50 ~0 al5 ~08 

25 g2,620 29 15 424 

26 g4 , 200 100 15 ~54 

27 g2, 560 474 H ~54 

28 g45l 5~4 12 183 29 gl28 197 13 30 79 S2 13 31 58 22 

Month 

October . . . ..... .. .... . .........•.... . . .. .. . No·vember . . . . ..... . ........ . ....•........... Deoe•ber .. ..... . ...... . ...•.......•........ 

Calendar year 1940 ... . . .. ... • ........... 

War . 

102 

84 

72 

60 

52 

49 

47 

~ 

4l 

38 

54 

~2 

29 

27 

28 

28 

26 

2~ 

22 

25 

23 

22 

~0 

52 

30 

~2 

31 

30 

28 

22 

21 

Secondtoot-days 

Apr . 

19 

18 

lS 

18 

19 

20 

18 

18 

18 

18 

20 

21 

21 

21 

606 

5,280 5~0 

1,540 

728 

~85 

179 

109 1,010 621 

220 

117 

98 

91 

155 3 , 070 

0 11 , 842 . 8 

'· 845 

llay J uno July 

3,180 17 100 61~ ~6 72 267 240 77 362 164 88 tl,O~O eo 48 

re72 37 40 308 259 ~4 

HO ~ll ~l 

100 88 27 84 fl9 , 000 24 

76 

79 

79 

70 

56 

48 

42 

~8 

36 

53 

~2 

86 

156 

68 

4~ 

36 

29 

24 

21 

20 

0 4,200 

1,280 

4,200 

19 

gll,600 23 r2, 100 30 g6~7 55 r~. 110 26 g7, 090 ~2 

g4,620 27 1,850 2~ 

371 19 180 16 125 H 

102 12 91 ll 81 10 72 8.8 88 8.~ 

77 7 .4 98 e.a 2,720 e.o 1 , 620 5. 4 

271 5 .4 

9.1 

Moan 

0 0 0 388 lS 150 

0 109 

~:~:Jy :: :::: :: :::: ::: : : :::::::: ::: : :: :: : : 7. ~~~ 2, 2~g ~~ 2~:. 6 

March ........... .. ...... . . ,................ 1, 159 102 ~~ 37 .4 April. ..................... . ... ..... ....... 18,004 5, 280 19 ~ 

~:~~ : : : : :: : : ~:::::::::: ::::::: :: : ::: ::: : :: : 6~: ~~: 1~: ~gg 17 1, ~~~ 

Au&. Sopt . 

6.8 10 5 . 0 5.9 4.2 ~.9 

~.5 2 .4 2.8 1.4 

2.6 .a 2.6 .4 2 . 6 .l l~ . l ll .~ 

4.2 27 2.6 13 2.2 8. 2 1.9 4.1 1.6 ~. 4 

1.6 2. 4 1.6 1. 8 l.O 1.2 .e .9 ."2 .e 

.e . 4 7 . 8 0 ll 0 e.s 0 8 . 1 7.6 

e.5 12 5.9 12 2.e 9 . 8 93 e. o 72 5 . 1 25 

Runorr 1n acre-teet 

0 23,0QO 

9,210 

July .. . . . ......... , ....... ... . ....... ,..... 854.2 100 5:~ 27.8 

~~~~:!i,~;. :::::::::::::::::::::::::::::::::: ~g::: ~~ 0 ~:~~ 

79,270 

l, 570 16,310 

2,300 

31,740 

15 ,920 114,400 

1, 890 

812 

275 

lla tor year 1940-41 . ................... . . t--1-08-,-9-4-2-. 4-l---l-9-.-o-o-o-!----:-o-+--,29:-8:--t--:2ccl-e-, 1"o"'o 

Peak: dhcbarl!;e.- Ho•. 26, 4,560 aeo.-rt . J Apr . 16 (S z30 a . m.} 7 , 720 aec. - ft.J Apr. 30 (9 a .m.) 

7, 300 eeo.-t toJ June 10 (6 p.m.) 63,000 eeo.-rt.: JWte 16 {12:30 p. m. ) e,l60 eec.-tt.J June 28 (6 a. m. ) 4, 600 seo . -rt. a llo gage-height record; d1aobarge computed on baa11 of recorded range in stage and weather recorda . t Pre.g.entarr ga.ge-beigbt record' disoba.rge oomj)uted from part1,. estimated gage height. g Computed from graph baaed on gage readings. 
50 TRINITY RIVER BABIN 

Clear i>ork or Trinity R1ver at i>ort Worth, Tex. 

Location .- Water-stage recoroer and concrete control , lat . 32°44', long. 97°21 ', at bridge on Stove roundry road, 388 feet dov.nstream rrom bridge or Texas & Pacifi c Railway at Fort worth , Tarrant County, and 3 miles upstream rrom mouth . Datum or gage Is 

532.91 teet above mean s ea leve l , datum or 1929 . 

Drainage area.- 522 square miles. 

Recoros available.- March 1924 to September 1941. 

Average d ischarge .- 17 years, 85.1 second-teet . 

Extremes.- Maximum dlschaT;ge during year, 11, 800 second-teet Feb. l (gage height , 15.42 t eet ); no flow Oct. l t o Nov. 23. 

1924-41: Maximum discharge, 17, 800 second-t eet Sept. 5, 1932 (gage height, 20.08 

teet); no flow at times. Maximum discharge known, 74 , 300 second-teet Apr . 25 , 1922 (gage height, 27.5 teet, 

present ctatum) , by slope- area method, data furnished by City E:ng1neer or Fort worth. 

Rema r ks .- Recoros good except those below 25 second-teet, which are poor. Texas & Paci fic ~way Co . dive rts small amount of water from pool In which gage Is located . 

Disc ha rge , i n secoud-!ee t , water year Oc t ober 1940 t o Sept ember 1941 

DOll Oct. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

2 1 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

October .. Novembe r . 

December .. 

Nov . 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

213 386 2 , 660 

2,290 

195 

93 

70 

~71 

Dec. 

49 

40 

40 

40 

40 

40 

40 

35 

32 

~0 

386 

311 

277 

907 2.810 

2 , 290 

494 364 284 

237 

210 

193 

177 

166 

162 

2 , 360 2,830 

767 

470 

391 

369 

Mont h 

J an . 

320 

257 

~14 

262 

2~2 

222 210 

202 

185 

170 

170 

166 

173 

197 

170 

154 1~2 

116 

118 121 

121 

114 111 

107 

104 

100 

93 

90 

90 

93 121 

Feb . 

6,640 :5 , 060 

942 

679 676 

611 

~91 

7 

302 

290 

262 

252 

216 

189 

189 

185 

173 

173 

210 1,060 

~14 

364 1 , 990 2 , 010 

624 

1,200 

706 

619 

Cal e ndar year 1940 .... . .. . . . .. • ... . .. 

January . . . . . .. . . . . . . . • . . . . . ..• .. .. . . 

February .. .... . . .. ...... ... ... .. . . . . . .. . . . . 

March .. . ... . . . . . . . . ... .. ... . April. ... .. .... . . .... ... ... .. ... . . .. .. . Way . .. . .. . . . . . . .. ..• .. . . . . 

June . ... . ... . .•• . •.. • . • ..• • . . . . •. •..•. . 

J uly . .. ..... . . . . . .. . , ... .. . August ... ....... . . .. .... . •..• . . • 

Septe mbe r . . . . ... . . . 

Wa t er y ear 1940- 41 

Mar . Apr . 

446 

~91 

354 276 

267 

478 

462 

314 

272 

272 

257 247 

232 

227 

237 

222 

193 

186 

169 

193 

185 

173 

322 

193 

147 

462 

339 

197 

166 

162 

154 

Second- ot~ s 

0 6 , 976 

16. 631 

89.2 

5,027 

2~,585 

8,216 

7.306 11, 114 18,017 

2 , 268 2.602 212.2 

101 05~.2 

143 

139 

132 

125 

118 

ll8 

~21 

162 

129 

114 

107 107 

ll1 

111 

ll1 

121 

114 1 , 310 

400 

328 

161 

152 

603 

455 

252 

185 

293 290 

210 

193 

llay 

19~ 

162 

19~ 

~eo 

4, 870 

860 

414 

~14 

262 

222 

222 

276 

216 

177 

156 

14~ 

136 

126 

116 

116 

146 

471 

173 

129 

107 

100 

0 2 , 660 2 , 830 

2 , 920 

320 5,640 

478 1, ~10 

4 , 670 3 , 890 

971 90 

83 

83 

83 

173 1 , 270 

16 

5,640 

J une 

7 4 

1.~20 

683 

170 

121 

310 

531 177 

139 

330 

3 , 890 

622 

362 

276 

355 

1,640 406 

262 

222 

197 

177 

166 

166 

242 

161 

13 2 321 1,220 

210 

143 

Mi n ilau.a 

0 

0 

30 

0 

90 

173 

147 

10 7 

83 

74 

23 

13 

1.3 

Jul y 

ue 

107 

107 9 

111 

63 

7~ 

67 

6 4 

61 

161 

173 

118 

63 

70 

80 

7~ 

61 100 

6 4 

66 

4~ 

38 

36 

35 

30 

28 

25 

25 

28 

23 

Aug . 

21 

17 

17 

14 

14 

1~ 

16 

16 

21 

19 

14 

13 1 , 270 

121 

49 

43 

25 

19 

16 

13 

16 

76 

93 

90 

241 

104 

43 

30 

25 

17 

16 

Sept . 

16 

16 

14 

9.7 

9. 7 

e. 4 

e. 4 

7.1 

6. 4 7. 1 

6 .4 

9.7 

6 .4 

e. ~ 

7 . 1 

6.9 

7 .1 

6 . 9 6.9 

4 .6 

4 . 6 ~.8 

4.6 

4 . 6 9 .7 

.~ 

1. 3 2.0 

l.~ 

2 . 0 

lie an Runorr i n aore-teet 

0 199 

543 

91 . 6 

162 

842 

265 

244 

359 

601 

73 . 2 

60 . 7 7.07 

277 

0 11, 850 

33, 360 

66 , 410 

9 , 970 46 , 760 

16 , 300 1 4, 490 22 , 0 40 35, 740 4 ,500 

4, 960 

421 

200, 400 

Peak: dhebarge .- Nov. 25 (5 p. m. ) 5 , 580 aee. - f t .; Dec . 26 (7 p.m . ) 6 , 890 sec. - rt. ; Feb . 1 (4 p.m. ) 11, 800 sec.-ft .; May 4 ( 4 :30 a.m_. ) 6,810 aee.-f t .; June 10 (5 p. m. ) 8 , 530 sec.-ft. ; Aug . 1~ ( 4 p. m. ) 

6 , 460 see . - rt. Aceu.mu1atlon or dr ift on control aftecta stago -diseharge rolotion be low 25 second- feet . 
TRINITY RIVER BASIN 51 

Elm F'ork or Trlnl ty River near Carrollton, Tex . 

Location .- Water-stage recorder above spillway or Cal1! ornla concrete dam , lat. 32°52 ' 25" , long. 96 °55 ' 50", at bridge on State Highway 114, 100 feet downstream from Hackberry Creek and 5 .5 miles southwest o! Carrollton, Dallas County. Datum o! gage Is 410.46 teet above mean sea level , datum or 1929 . 

Drainage area .- 2,612 SQuare miles . 

Records available.- July 1938 to September 1941. January 1907 to December 1928 , at si te near Dallas, 7 miles dovmstream (January 1907 to September 1920 , monthly records only, published I n Water-Supply Paper 850). November 1923 to July 1938 , at site 6 .5 miles 

upstr eam, at Carrollton Dam. Records eQuivalent except during periods or Intense local 

rains a'ld during low !lows at station near Dallas, caused by mun icipal pumping between 

sites. 

Average discharge .- 33 years (1907-22, 1923-41) 783 second-!eet . 

Extremes .- Max imum discharge during year, 76 , 400 second- teet June 12 (gage he ight, 20 .53 feet) ; minimum observed , 57 second-!eet Sept. 30 (regulated) . 1907- 41 : Maximum gage height , about 27. 5 !eet, present site and datum, May 25 (corrected) , 1908, !rom tloodmarks, furnis hed by S a te Reclamation Department (discharge not determined but pr obably maximum !or period or record; a!!ected by backwa e r !rom 

West F'o rk ot Trinity Riv er); no !low at times . 

Remarks.- Records good except those above 3 , 000 second- !eet and those !or per! od or no ---gage=helght record , which are !air. F'low r egulated by Lake Dallas (capacity, 214, 000 acrc-!eet) . No diversions above station . 

Discharge, in second-feet., water year October 1940 to September l9U 

D&J Oct . Nov . Dec . Jan . Peb . Mar . Apr . llay June July Aug . Sept . 

l 164 201 1,770 1 , 920 ~72 1 , 770 516 ~00 157 808 279 297 

2 154 174 1,?20 1,670 40 l , SSO 527 ~00 4 , 350 1,870 178 271 

3 154 165 1,670 ~0 1 , 910 1 , 970 522 3 , 070 7, 060 2 , 410 165 256 

4 154 165 1,620 2,41.0 1 , 530 1,970 498 2 ,960 6 , 890 1 ,700 150 251 

5 150 165 1 , 620 2 , 460 92~ 1 , 870 332 6 , 220 2 , 0 70 see 142 246 

6 150 161 1 , 620 2,410 626 2 ,500 308 4, 830 1,290 504 138 246 7 160 166 1,580 2 ,410 452 3 ,110 564 1, 280 2 , 550 441 138 241 

8 160 166 1 ,580 2,360 282 2 ,280 1 ,160 ~o 864 396 154 236 9 146 188 1,680 2 , 150 226 1,970 783 1 , 920 539 251 520 236 10 146 lg2 1,580 942 196 1 , 870 528 1 , 870 4, 2 40 230 487 236 

11 150 192 1 , 660 802 183 1 , 770 352 1,820 18 , 000 291 ~2 2 236 

12 157 178 3 , 2r;O 707 170 1 , 720 324 1 , 770 65 , 700 271 206 2 41 

13 167 174 2 ,630 693 157 1 , 720 313 1 , 770 38 , 500 287 226 241 14 157 al70 6 , 050 613 142 1 , 6 70 313 1 , 720 22 , 400 256 206 241 

15 157 al70 7 , 920 504 124 1 , 580 313 1 , 240 18, 200 251 196 241 

16 167 al70 9 ,4 40 470 117 970 405 606 19 , 200 215 178 2<ll 

17 150 al 70 9 , 610 435 120 738 2 , 140 292 20 , 900 291 174 241 

18 13& al70 e2 , 660 402 120 639 6 , 830 183 18 , 700 729 154 241 

19 ~~ al65 2 , 460 318 127 310 e9 , 290 178 13, 500 498 127 241 20 138 al65 2 , 190 303 415 220 c3 , 980 425 c6 , 880 251 111 236 

21 ~ el66 2 , 520 303 606 225 2,600 452 c2 , 900 170 1~ ~0 

22 138 a 713 2 , 630 297 561 220 2 , 320 527 1 , 870 157 1~ 230 

23 142 2 , 640 2 , 520 201 1 , 040 316 6 , 620 600 1 , 9?0 150 135 230 

24 142 2 ,420 2 , 520 183 92 0 •~o 6 , 660 890 2 ,330 150 142 116 25 146 3 , 910 2 ,460 146 2 , 800 522 7 ,480 721 2 , 410 146 352 68 

26 146 7 ,510 :5 , 170 1~5 3 ,430 600 4,500 576 1 , 970 150 446 128 v 146 c8 , 400 7,030 135 5 ,410 726 3,680 ~00 2 , 990 146 448 251 28 116 o4,200 7 ,750 131 3 , 440 646 3 , 680 178 5 , 110 142 470 262 29 117 ol , 350 2,620 12 7 613 3 , 980 165 1 , 530 142 413 80 

30 166 1,260 ,~0 110 551 3 , 840 210 1 , 070 146 374 59 

31. 196 1 , 350 104 522 165 150 330 

Month Second- Max.imum Minimum Mean Runoff in root-days ac re-feet 

October . ....... , ..... , ..................... 4 , 596 196 116 148 9 , 120 November ..... . ..............•. ............. 36 , 033 8 , 400 161 1 , 201 71 ,470 December .. ... ........... ... ......... ....... 00 ,~60 9 , 610 1 , 350 3,237 199 ,100 ------- Calendar year 1940 .. ···················· 314 , 071 9 , 610 50 858 622 ,900 

------- January ..... ............... . . . . ...... ...... 27,231 2 , 460 104 878 6 4,010 February . . . . .. ············ · ··· ····· ··· · · 31 ,728 5 , 410 117 1,133 62, 930 Ma rch .. ..... .... . ... •....... ..... .. . .•. . . . . 37,600 110 220 1 , 213 74 , 580 April. ....................... . . . . . . . . . . . . 77,258 9 , 290 308 2 , 575 153,200 

llay . ...................... . ............ . . . . 44,918 6 , 220 165 1 , 449 89,090 J une .......... . ....... . ................ . . .. 297 , 040 65 , ?00 157 9 , 901 589 , 200 J uly ....................................... 14 , 187 2 , 410 142 458 28 ,140 

August ................................. 7 , 636 520 Ill 246 15,150 

September .. ............... . .......... 6 , 562 297 59 219 13 , 020 

Water year 1940-41 . . . . . . . . . . . . . . . . 685 , 149 65 , 700 59 1 , 877 1,359 , 000 

a No gage - height re cord ; d1och&rge computed on bas h or engineer's notes , records for nea rby ota.t1 ona, and. wea.ther recorda. e Backwater e ffect from return of overOOnk flow below station ; discharge eornputed f rom ba.ckwa ter curve drawn on bael a of several discha rge measurements. 
52 TRINITY RIVER BASIN 

Denton Cree k near Roanoke , Tex. 

Lo cation . - Wa t er-stage recorder, lat . 33°02 ', long . 97°12', 340 ! s et upstream !rom bridge 

on U. S . Hi ghway 377, a quart er or a mile d ownstream rrom brld!;e or Texas & Pac!tl c 

Ra !lway, and 2.2 m!les nor theast or Ro ano ke , Denton County . Da tum o r gage I s 523 . 6 rest a bove mean s ea l evel , da tum o r 1929 . 

Drainage area . - 704 square m!les. 

Reco rds ava ila ble .- Oc t ober 1923 to Dec embe r 1927, March 1939 t o Se p temb e r 1941. 

Extremes.- Maximum discharge durin g year , 39 ,300 sec o nd - t e et J\lne 11 ( gage heigh t , 28.90 fe s t ) · no now Oct. 1 to Nov. 23 . 19~27, 1939- 41 : Maximum d i scharge, that o r JUne 11, 1941 ; no !low at t imes . 

Max imum stage known , a bout 31 teet I n May 1906 , according to Informat i on rrom l ocal 

residents . 

Rema r ks .- Records go od . No large d l v e r slo n8 above s t a tion . 

Diaohar,e , in second-teet . wate r year Oc tobe r 19.0 to Septe•ber 1941 

Da~ Oot . Nov . Dac . Jan . f'ob . Mar. Apr . llay Juno J uly Au& . Sept . 

1 0 1~ ~ 987 488 87 828 27 170 88 18 2 0 98 226 1,240 ~90 82 843 1,640 119 28 a 3 0 80 ~1 1, 1?0 ~8 80 42, 214 97 17 ~ 

4 0 71 201 9~8 280 7~ 868 72 88 13 11 5 0 66 19, , 78 20, 68 1 ,610 ~ 8~ 11 8.8 

6 0 88 18, 29 •a8 88 428 99 78 10 7.4 7 0 87 164 240 ~9 ~86 883 98 89 21 8.0 8 0 80 184 182 240 162 386 69 66 879 6.0 9 0 47 142 15, 204 96 216 88 61 222 4.8 10 0 .. 127 140 178 87 147 7,440 84 39 4.8 

11 0 466 120 1~~ 148 77 118 24,900 49 81 4.8 12 0 310 119 12 4 ~ 69 129 7,800 86 ~ e.e 13 0 1,080 124 116 1~1 69 no 1,640 61 71 7.0 14 0 1,410 144 100 127 67 84 1.,980 66 40 6 . 6 18 0 6 , 360 138 93 1~ 3 69 68 3,800 82 28 6.0 

16 0 2, 010 120 92 1~6 737 88 4, 140 69 34 8 .6 17 0 985 106 92 120 2 ,860 82 3 ,810 71 22 5.0 18 0 720 e o 00 100 &,4oVO 47 l. , MO 40 18 .~ 

19 0 460 ~ 111 106 1 , 170 43 554 39 11 8 .0 20 0 9 84 451 108 8M 88 390 37 8 . 8 4. 4 

21 0 283 84 214 111 486 69 297 ~ 8 . o 3 . 7 22 0 20 4 84 340 106 389 48 244 30 9 . 5 3.2 23 4. 7 178 79 743 142 1,8 80 50 208 27 12 2 .8 24 392 15, 78 1,170 156 1,~ 50 206 25 162 2.6 25 3,820 144 77 870 3~ 788 38 170 22 204 ~ 

26 3 , 180 dl ,9SO 75 2 ,020 282 472 u 206 20 51 20 27 2 , 040 dl ,970 7~ 1 ,440 196 451 .. 283 19 ~5 17 28 1 , 210 722 88 627 126 540 37 678 16 30 9 . 8 29 409 512 67 gg 517 30 654 15 2j 6.6 30 209 425 68 92 474 27 278 17 26 5. 0 31 342 77 91 26 159 26 

llonth Second- llla.xiaum llli n1a um Moan Runott in toot-days ac re-feet 

~t~e r . . ... . . . . ... .. . ....... . . . . . . . . . . . . . . 0 0 0 0 0 November .... . . . . . . . ...... . . •. . . ....... .. ... 10,964.7 ~,620 0 366 2 1,750 Decembe r .... . . . . . . ... .. . . . .. . . . . .. . . . . .. .. . 20 , 666 6 ,360 44 666 40,Q70 

-- ----- Cal endar year 1940 . . . . . . . . . . . . . . . . . . . . . . 70 , 244 .2 6, 280 0 192 139 ,300 --- - - -- January .. ...... ... . .. . . . ..... .. .. . . . .. . . .. . 3,891 S23 67 126 7 , 720 February . . . ......... . . . . . .... .. . . .. .... . . . . . 14, 660 2,020 89 624 29 , 080 March .. .. ... . .... . . ..... . . . .. . .. .... . .. . ... . 6 ,794 488 91 187 11 ,490 April ........•..•....•.....•..•.. 17 ,773 3 , 490 66 692 3& , 250 by . .. ..... .. • •.•..• . . • . .• .••. • ..•. . •...... 6, 802 1 ,610 26 219 13,490 June . .......... .•.. . ····· ·· ··· ·· ·· 62 , 8 43 24,900 2 7 2 , 006 124,600 July .. .. . . .. .•. . •..• . .•. . •• ••.• . ••...... . . . 1,802 170 16 58.1 3,670 A.U1(UIIt .. . ........ , . , . , , . , . , •, , •, , , , , , .. . . .. 1,982 .S 679 8 . o 63.9 3 , 030 September .................. ........... 282.8 63 2 .6 9.4~ 661 

1Jator year 1940-41 . . . . . . . . . . . . . . . . . . . . 147,450.8 24 , 900 0 404 292,400 

Peak dhoharge . - Nav. 2& (9 p . m. ) 7,800 aeo .-tt. 1 Dec. lfi (4130 p.m.) 10, 100 aec .-tt. J Deo. 20 (9 p . m.. ) 5,200 aec.-rt .J Apr. 18 ( 3:16a. m. ) 9,000 aee . -rt . J June 11 ( 7 a . m.) 39,300 1ec .-tt. d Doubtt'ul gag e-height record; d h oha rge c omputed on 'baail ot t1ood.Jnarka , partia l record, engineer'• note• , and weather rec orda. 
TRIN1TY RIVER BASIN 

East For k or Trinity River near Rockwall, Tex. 

Locat i on .- Cha i n gage , lat. 32°55 ' 25", long . 96 °30 ' 20' , on bridge on u . s. Highway 67, 3 miles southwest or Rockwall , Rockwall County and 8 miles upstream !rom MUddy c r eek. 

Datum or gage is 404.3 t eet above mean sea level, da tum or 1929 . 

Drainage area .- 831 sQuare miles . 

Records available .- November 1923 to September 1941 . 

Average discharge .- 18 years, 432 s econd- teet . 

Extremes .- Maximum discharge during year, 43, 200 second- t eet June 11 (gage height, 21. 0 t ee t, trom graph bas ed on gage readings) ; no now Oct . 1 to Nov . 10. 1923-41: Maximum discharge , 64, 800 second-teet J\lne 16", 1935 (gage height, 23 .39 tee t, trom tloodmarke) , by elope- area method ; no r iow at times. Maximum stage known, about 25 teet i n spr ing or 1922. 

~- Records good . Gage read twice dai ly . No diversions above station . 

Rat1ng table, water l;:Jri~: ~!n ~~ e ~t~a!~ teet, and dheharge, Ja.n. 4 to Feb . 1 ) 1n aecond-teet ) 

1.2 0 2.5 sa.5 8.0 570 12 . 5 1,900 17.0 14,800 1.4 1.5 ~.0 65 . 5 10 . 0 840 1~.0 2,560 18.0 20,000 1. 6 5.0 ~.5 99.5 11.0 1,020 H. O 4,500 19.0 26,600 1.8 10.5 4.0 140 11.5 1,150 15.0 7,100 2.0 17.8 6.0 ~~0 12.0 1,430 16.0 10 , 500 

Diaohar,e. in second-teet. water year October 1940 to Septe•ber 19U 

~ Oot. Nov. Deo. Jan . Fob . liar. Apr . ~ Juno July Au& . Sopt . 

1 0 13a 2,320 269 2, .. 10 671 1,510 120 590 86 50 

2 0 1~ s,<>&o lrOlO 968 865 2,560 1,370 194 5l5 sa 

3 0 88 2 .-720 1,~o 696 «O 3 , 690 ~.060 5~2 ~6 30 

4 0 " 1.~60 2,010 .eo 2 42 1 , 520 9,000 1,120 ~0 26 

5 0 71 6" 1,070 ~96 208 520 7,100 7~ 26 24 

6 0 69 606 468 615 176 9 ,700 2,260 186 40 20 

7 0 67 "' ~6~ 1,180 ~79 9,360 2,130 140 ~ 17 

8 0 69 ~96 ~10 1,510 1,~0 4,600 2 , 890 119 ~5 14 

9 0 77 ~" 250 1,4.10 1,460 1,4~0 2 ,130 107 ~0 12 

10 0 69 ~52 ~7 717 1 ,260 622 1,&&0 97 ~2 10 

11 ~5 168 ~20 227 4~2 470 468 24,.200 89 27 9.~ 

12 98 967 ~00 218 ~u 2110 506 17,700 216 27 9.0 

13 ~ 1,360 300 204 ~20 261 420 7 ,100 790 67 8 .7 

14 20 2 , 6&0 362 186 ~0 2 42 ~68 ~~go 1,600 186 9.~ 

15 11 4,260 ~60 167 ~00 261 280 1,900 1,390 110 9.0 

16 8.1 9,000 ~10 164 ~10 ~60 249 3 ,230 818 102 8 .1 

17 5.2 8,300 290 168 290 6.S 218 6,600 312 84 7 .5 

18 4.2 6,600 237 164 251 716 199 s, ooo uo " 64 

19 3.0 1 , 790 204 U9 218 1 ,260 186 1 ,610 168 30 42 

20 2.7 8611 190 2~7 218 ~,800 237 6« 320 23 13 

21 1!.4 696 194 618 222 ~,2:50 ~96 ~96 ~10 19 8.1 

22 2.1 480 199 408 218 1,480 396 3U 103 16 6.8 

23 2114 480 194 697 .Sl 2 ,970 208 ~10 73 15 6 .2 

2.4 1,000 ~~ 186 1,120 8 60 :5,800 172 362 66 603 3.6 

2S 1,180 3~0 180 1,790 696 8,000 149 300 69 1,510 4.6 

26 274 e.a 176 2 ,720 ~0 &, 2&0 218 261 64 686 3.4 

27 2 , 890 2,260 172 2 ,010 310 2,000 136 29~ 50 176 3.4 

28 2,1&0 4,600 162 2 ,890 280 893 123 924 411 166 3 .4 

29 866 &,760 U9 227 674 107 1 , 290 40 eo 3.2 

60 217 2,280 U9 204 893 1~ 1,4:50 37 286 2.7 

31 1,010 U9 264 100 ~ 96 

Montb Seoond- Maxiau. lliDiiiWI Moan Runott in root-<laye aore-teet 

Ootobor ... . ...................•............ 0 0 0 0 0 Noveabe.r .. ...... .. 0 • • •• •••••• 0 •• • ••• •• 0 • •• 0 9,074.7 e,ego 0 302 18,000 Oeoeaber .. 0. 0 •••••••••• • •••• •••••••••••• •• • 64,203 ' 9 , 000 67 1,7.8 107,600 

------- Calendar year 1940 ..... . •.......• . . ..... 211,607.3 16,400 0 678 ' U9, 700 

------- January .......... . .... , o •• • • • ••• •• •• •••• ••• 16,937 3,oeo 149 646 3.:5,6go 

~=~~~~ :·::::::: :: :::::::::::::: ~:: :~::: :·:: 21 , &23 e,sgo ug 769 ·42 , 290 

17,268 2,.10 204 667 34,250 April. . .. . . . . . , ... ....... . ...... ........ ... 44,209 8,000 176 1,.7, 87,690 llay . ........ .. ..•..•....... . ..• . .......... . 43 , 616 g,700 100 1 ,404 86,310 June ..... . .. . o • • • ••• • • •••••• • ••••• • •• ••••• • 107,881 24 , 200 120 s,&G6 2H,OOO July .. . ... ..... . •.. • ..•...... . • . .... . ...... 10,418 1 , &00 ~3 336 20,660 AU&UOt ..... . ............. •.• • .•. .•..•... .. . .,738 1,610 16 163 G,3GO Septeaber . .......................•....... . . 466.3 64 2.7 16.2 9~ 

later year 1940-41 ··········· ·· ···· ····· ~30 017.0 24,200 0 904 664 , 600 
54 TRINITY RIVER BABIN 

Cedar Creek ·near Mabank, Tex . 

Location .- water-stage r ecorder, lat. 32°19 ' 45", long. 96 °10 ' 05" , at bridge on county hi ghway 2 mlles downstream rrom Lacye Fork and 5t mlles southwest or Mabank, Kautman 

County . Datum or gage Is 285 .39 reet above mean sea level , unadJusted . 

Drainage a r ea .- 741 square miles . 

Records avallable .- December 1938 to September 1941 . 

Extr er.tes.- l"oaxlmum discharge during year, 16 , 800 second-teet June 17 (gage he i ght, 19 .12 tee t), Cram r ating curve enended above 3, 000 second-teet on basis of one slope-area determination at gage height 23 .5 reet, a t slte 12 miles downstr eam; no ! low at times. 1939- 41 : Max imum discharge , that or June 17, 1941 ; no now at times . Maximum stage known , 23 .5 reet, Sept . 29 , 1936 accord ln~; to ln!onnatlon rrom local residents; peak discharge or this flood at sl te about 12 miles below station (drainage area , 910 square mlles), 35,400 second-teet , by slope-area method . 

Remarks .- Records ralr except those ror periods or no gage-helgnt record ana those above 

-----:),(jOO second- Ceet , which are poor. No l arge diversion above station . 

Di soha.rge. in secqnd-reet, wa ter year October 194.0 to September 1941 

Day Ool. Nov . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

ll 

l2 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

163 

195 

58 

21 

9 . 4 

5.5 

3.6 

2.9 

68 

764 

753 

3 40 

140 

73 

31 

15 

10 

8 . 2 

6.4 

5.5 

7.6 

19 2 , 840 

il~~ 

0 0,400 0 7 ,«O 0 4,760 

0 2 , 610 0 467 2 . 0 

Dec . 

120 

68 

44 

34 

31 

26 

23 

20 

18 

16 

76 

6 46 1 , 130 1 , 420 

1 , 210 

2,~50 

~, 380 

:5,920 

2 ,000 312 

120 

82 

61 

48 

97 

1 , 420 :5,700 

5,660 

7 , 080 

4, 520 

9 25 

Wonth 

October ... . November . . . 

December .. . 

Calendar year 1940 

Jan . 

196 

136 

105 

77 

65 

53 

4e 

40 

34 

30 

27 

25 

36 

e 69 1 ,270 

a 67l 

a:537 

&1 82 

all6 

a84 

a 61 a46 

a38 

a35 

&34 

Feb . 

a94 

al , 1560 a2 , 160 a1 , 960 

797 

168 

105 

76 

57 

H 

35 

29 

26 

22 

21 

19 

17 

17 

23 

301 

587 

379 

601 2 , 800 4 , 100 

a34 3 , 120 

-~ 1 , 430 a30 560 a29 

a27 

a26 

January . . ............ . ............... . 

February . . . . . .... ....•. . ". March ....... . •. . • . . •. • .. • .. • .. . . . • . . •....•. 

Ap ril. .... . . . , .......•. . •.. • .......•. May . ..... ... .•.. , .. •. •..• . .•. .• ....• . .•..•. 

June .........•....•..•... 

July ........... . •• .•. .. . • . .•.• •. . •. •. .•..•. August ............... . .....• . ..... 

September ... .. ........ ..... . . ... . ...... . 

Water year 1940-41 

Mar. 

248 

133 

92 

68 

54 

592 3 , 210 

5 , 550 6 ,520 4 , 0 40 

799 

192 

128 

97 

77 

63 

54 

48 

37 

32 

28 

26 

473 

969 

627 

Apr . llay 

39 780 :52 1 , 520 28 2 , 220 

24 2 , 100 22 3 , 200 

20 6 , 300 

38 7 , 200 

49 5 , 8 60 92 3 , 180 81 746 

47 

29 

20 

15 

13 

195 

95 

66 

49 

3 4 

23 103 24 

20 

16 

14 

13 

94 

76 

103 

127 

6 4 396 1 , 710 

2 , 220 

11 

23 

29 

22 

13 

June 

7 .6 

281 1 ,440 2 ,220 2 ,470 

1 , 600 2 ,110 

3,290 

2 , 930 2,930 

3 , 540 5 , 210 7 , 260 

6, 250 

~00 

8 , 340 

5,800 

3,600 

6 , 530 1,950 

227 

100 

65 

42 

32 

J uly 

1,980 

193 

82 

110 

91 

42 

27 

20 

14 

10 

I 

i~ 296 1 , 8 40 '2 , 220 

1 ,070 

778 

238 

a77 

o47 

a:le 

&31 

o26 

o20 

a15 

Aug . 

a0.9 

.7 

.9 

. 7 

. 6 

.. 

.4 

.3 

.3 

1.1 

5 . 8 2.2 

1.4 

0 

0 

0 

0 

0 

0 

0 

0 

57 

.9 

.. 

. 3 

Sepl . 

21 

13 

10 

8 . 2 7 .0 

6 . 1 

5 . 5 4 . 9 4.6 

4.3 

•• o 3 . 8 

.6 

3.3 

~.1 

2 .9 

2 .7 

2.5 

2 .0 

1 .8 

1.1 

.e 

.3 

1 .1 

1.6 

196 

168 

164 

131 

1 ,300 

261 

108 

74 

76 

10 40 all 945 1 . 1 

78 

53 

Secondroot-days 

2.0 62 , 616.1 40, 607 

166,693 . 6 

4,794 

21 , 108 25 , 047 7 ,282 

:53, 773.6 98, 868 . 6 

9 , 311.9 6,021.3 

121.0 

299 , 547 .4 

YaximWD 

8 . 2 32 7 .0 357 6 .4 1,680 6 . 1 3,330 

5 . 8 

Winimum 

2 . 0 11 , 000 7 , 080 

0 

2 .9 

16 

11 , 000 

1 , 270 

4,100 

6, 520 2,220 

7 . 200 15 , 800 2 , 220 2 ,420 

21 

15 , 800 

0 

25 

17 

26 

13 

s.8 7.6 

1.4 

0 

0 

0 

a6 .4 1 , 560 a2 . 7 2 , 420 al.S 661 

a l. 6 279 al. 4 62 

0 

0 

.6 

.~ 

Mean Runoff in acre-feet 

0 .06 1 , 754 

1,310 

455 

155 

754 808 

2 43 

1 , 009 3,296 

300 

194 4.03 

821 

4 . 0 104 ,400 

80 , 540 

330, 700 

9 , 510 

41,870 

49, 680 14,440 

66 , 990 196 ,100 18 , 470 11,940 

240 

59 4,200 

80~ !~a f~=~-~=~~Ja ~e cord ; ct lsebarge computed on baaia of recol"ded range in stage . eng tneer' e notes, 
TRINITY RIVER BASIN 55 

Chambers Creek near Corsicana , Tex . 

Location .- \later-stage re corder, lat. 32°06 ' 30", long . 96°22 ' 15", at bridge on State High- way 31 , SOC teet upstream from St . Lou is , Southwester n Railway bri dge , 6 miles-east or Corsicana, lavarro County, and 17 m!les upstr eam from Richland Cr eek . Datum or gage Is 294 .26 teet above mean sea level , datum or 1929 . 

Drainage ar ea .- 958 square mlles . 

Records ava ilable .- March 1939 to September 1941. 

Extremes .- Maximum discharge during year , 25, 40C second- feet Nov . 24 (gage height, 24.40 teet); no flow Oct . 1- 31 , Nov . 2- 9 . 1939-41 : Maximum discharge , t hat of Nov . 24, 1940 ; no flow a t times . Maximum stage known, about 27t feet In December 1913, according o Infomation rum I shed by l ocal r es I <Ients. 

Remarks .- Recor ds fair. No large diversions above stat i on . 

Discharge , in second-teat, water year October 1940 to September 1941 

De.; 

1 

2 

3 

4 

5 

6 

7 

6 

9 

10 

11 

12 

13 

14 

15 

16 

17 

16 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Oct . 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Nov . 

1.2 

.1 

0 

0 

0 

0 

0 

0 

57 

86 

36 

22 

10 

5 .3 

3 . 2 

2 . 4 1.5 

.8 

.6 

.4 

0 2 .0 

0 29 0 6,080 0 s. 700 0 4,800 

0 0,900 

0 6, 720 0 700 

0 1 , 0:50 0 484 

20 

Dec . 

~86 

323 

273 

253 

244 

222 

202 

198 

178 

168 

6U 

'790 

4, 570 

2 , 110 1 , 760 

5, 690 5 ,950 

3 , 290 1 ,000 

726 

686 

502 

450 ~98 

434 

800 

20 

4,950 

3 , 190 1,280 

726 

Month 

Jan . 

7,070 

1 , 780 2 , 010 

677 

502 

46~ 

437 

372 

~59 

290 

257 

278 

406 

~0 

1 , 780 

78~ 

470 

59 

296 

272 

Feb . 

727 9 , 070 

11 ,800 4, 890 1,560 

888 

776 

628 

516 

437 

398 

359 326 

296 

252 

242 

23~ 

224 

215 

913 

267 1 , 260 257 1 , 860 242 2 , 470 228 9,990 220 9 , 320 

210 4 , 600 

206 1 ,800 186 1 ,090 174 

170 

178 

October ... . . . ... . .. . ..... . . . . . .•... .. ... . .. November . ....... . . ... .. . . •. . •.. . ... . •. . . . .. 

De0811ber . . . . , ., , ..... ,.,, ,. ,, ,., . ,, .,, . . , . . 

War. Ap r. Yay 

803 

684 614 

544 

456 

2 , 010 8 ,990 

6 , 000 2 ,130 

926 

652 

530 

489 424 

~98 

~8 5 

3 46 

290 

267 267 

267 

252 

650 1 , 630 

8 19 

390 

810 

909 

495 

296 

267 

Secondroot-days 

20 

61,671.5 

48,892 

252 

228 

220 

215 

210 

206 

216 

242 

220 

2 10 

206 

202 

198 

194 190 

312 

402 

(164 

nee 

645 

~43 

a202 

2 ,140 

5 ,460 

4,580 

3 , 140 

955 

586 

502 

476 

516 

424 324 1 , 110 

4,930 

12 , '700 

6 , 250 :5 , 010 

8 77 

530 

489 

372 

3~~ 

a.290 a242 

a210 

186 

170 

1 5 4 1 ,1:50 

1 ,700 

960 1 ,100 

540 

202 

182 

154 

1~4 

123 120 

109 

Maximum 

20 18 ,700 

5 , 950 

Calendar year 1940 . . . . . . . . . . . . . . . . . . . . . . 2 4.1 , 706 .0 18,700 

January . ...... . ... . ......• .. • ···· · · · •·· · ··· February ........ . ...•.. . .. .. ... • .... . . . . . .. March . ............. . •..•.. .. ...•....... . .. 

Apri l . . ....... . .... . , .. • .. . ....... •. · · · · · · · May .. . . .....•.......•.. . .... . . . •..• . . . ..... 

June . ... .. ..........•..•.... . ..• . . . .. . .. .. . 

July .. ............................ . ....... . 

August . . ................. .. ....•..•........ 

September . ....... . ...... . ...... . ....... . 

2~ ,6 9 

67 ,162 ~3 ,9 0 

23,305 

39 , 571 51 ,333 29 05~ 

6 , 244 

357.9 

7 , 070 

11,800 

8 , 990 5 , 460 12 ,700 7 , 000 6, 110 1,040 

35 

June July Aug . Sept. 

99 

618 2 ,260 

2 , 550 1 , 510 

595 2 ,720 

2 , 520 1 , 460 

995 

5 , 660 7,000 

4,280 

1 , 520 

688 

1 ,760 

~.~eo 

2 ,98 0 1 , 200 

544 

350 

al70 

158 

212 

266 

197 

112 

9~ 

8 4 

72 

86 1, 570 4~0 

4,250 

4,680 

6,110 

1 , 5410 

480 

2~2 

204 

424 1 ,010 359 2,120 ~72 654 426 162 656 130 

443 109 3 14 96 1 , 230 8 4 1 ,570 a71 1 , 300 a64 

a 57 

Minimum lie an 

a 50 

44 

40 

37 

4 

~ 

8~ 

359 

447 

183 

68 

47 

51 

220 

973 

1,040 

144 

t'72 

r52 

41 

~4 

~2 

287 

8 77 

555 

156 

69 

46 

~7 

61 

52 

~5 

26 

2~ 

20 

18 

16 

1~ 

12 

ll 

ll 

10 

12 

12 

12 

12 

11 

ll 

9 . 4 

8 . 7 8 . 2 

7.~ 

6 .4 

5 .7 

7 .0 

7 . 9 

6 . 1 5 . 5 6 . 5 6.9 

.~ 

Runorr in acre-teet 

0 

0 168 

0 .66 2 , 056 1,577 

40 122 , 300 96,980 

0 

170 

. 215 

252 

164 109 

99 

57 

~2 

.~ 

660 

761 2 ,:S99 

1,096 777 1,276 

1 , 711 

9 37 

201 

11.9 

479,400 

46,770 

1~,200 

67 , 420 46 , 21!0 ?8, 490 

101,800 

57 , 630 12 , 380 

710 

Water year 1940-41 . . . . . . . . . . . . . . . . . . . . . 385 . 176 .4 18,700 0 1 ,056 76~ 900 

(&P:~~ i2~60Se;;e~~rt . J~: ~ ;m~~ ~~ ~~ ~s~~e~;~ :ft:~bWa; 4 (; ~. iZ~o~e~;~:=ii. Feb. 24 

a No gage-height r&cOrdJ dheharg & computed on baaie or recorded range in stage , ong1neer 1 a notes, and wea ther recorda . t Fragmentary gage-be1ght rocord.J d.iecharge computed from partly e at1mated ge.ge he1ght. 
56 

TRINITY RIVER BASIN 

Richland Creek near Richland, 'rex. 

Locat ion .- Wat er-stage recor der, l a t . 31°57 ', l ong . 96"25 ', at br idge on u . S. Hi ghway 75 , 750 rest downstream rrom Texas & New Orleans Railroad bridge , 1 mile north or Richland , Navarro county , and 3t miles downstr eam rrom Pi noak Creek . Datum or gege is 299 .0 reet above mean sea l evel , datum or 1929 . 

Dra inage area .- 760 sQuare miles . 

Reco rds available.- December 1924 to February 1925 (discharge measurements only) , Mnrch 

1939 to Sept ember 1941. 

Extremes.- Maximum discharge during year, 43,000 second- teet Nov . 24 (gage height, 22 .42 

teet); no now Oct. 1 to Nov . l. 

1939-41: Max imum discharge , that ot Nov . 24, 1940; no !low at times. 

Max1mum stage known , 25 .5 teet in December 1913, according to information rurnished 

by engi neers ot Texas & New Orleans Railroad. 

~- Records good . No large diversi ons above station . 

Disobarge , in second-teet, water year October 1940 to September l94J. 

Oa Oot . 

1 

2 

3 

4 

5 

6 

7 

a 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

la 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Nov. 

65 

25 

•·a 2 . 0 

.a 

.6 

·' .2 

2.0 

~la 

48 

11 

(.0 

1.9 

.9 

.7 

.7 

.7 

.s 

.. 

.. . 7 

4,060 3,700 

~,ooo 

•• ~oo 

8 , 140 

4,170 

662 

202 

Ooe . 

161 

1.28 

104 

92 

87 

82 

77 

75 

68 

6( 

558 3,750 

4,280 

:5,360 

1,620 

4 ,120 

4,680 

2 ,780 

406 

2H 

19a 

165 

1(6 

1~1 

117 

275 2,990 

3,790 

2,260 

387 

249 

Jan. 

~92 

512 

2~7 

181 

15~ 

145 

~4 

124 

114 

10( 

96 

92 

164 :5,:560 

,,ll5i0 

1 ,:520 

2~ 

150 

117 

10( 

Fob . Mar. 

864 ~66 

7,170 ~17 

11 ~0 287 4,840 264 96a 224 

~90 2 ,260 ~65 11,000 270 11,400 211 5 ,260 

186 1,070 

169 ~~5 

15~ 264 142 2~9 

128 202 

110 173 

107 166 104 149 96 1~ 

90 ~a 

156 167 

Ap r . 

eo 

76 

481 

166 

68 

59 

86 

92 

al 

68 

5~ '9 48 

48 

46 

129 1,090 278 

106 

696 

9a 189 l~a ~18 

96 777 87 1 ,740 82 8 ,380 

eo 1o,800 

76 

72 

66 

64 

62 

66 

6,010 

1,010 460 

12a ga 13). 1,~00 

2~a 4,120 

1~4 4,760 

107 

121 

156 

101 

a4 

82 

2,'7150 420 

~06 

224 

~03 

Way 

38~ 

146 

148 

911 2 ,600 

8,700 

9,480 

~,170 

~51 

186 

161 

12a 

120 

101 

90 

82 

72 

6a 

7~ 

2,470 

2,700 

2,150 771 

185 

12a 

104 

92 

82 

72 

70 

66 

June 

59 

6~ 

~7 

744 

185 

106 3,030 

:5 , 890 

660 

9~4 

4,480 

15,0.0 

1,~g 

1,860 

:5,580 

8,720 

6, 760 

646 

177 

246 

1~7 

107 

178 

130 

91 

396 1,250 

197 

80 

J u ly 

59 

50 

46 

48 

us 

59 

" ~9 

~4 

31 

152 

4,440 

9,800 

10,~0 

6 , 020 

4,280 

4,280 

2,070 261 

1 ,020 

480 

13a 

107 

92 

82 

72 

66 

59 

~ 

48 

46 

AU& . 

41 

~6 

~~ 

~ 

2a 

27 

~ 

H 

~7 

M 

26 

2~ 

20 

56 

68 

26 

20 

16 

14 

1~ 

12 

ll 

lll 

139 

llO 

~a 

25 

20 

17 

18 

15 

Sopt . 

14 

~ 

11 

9.a 

9.1 

8.2 

6.7 s., 

5.2 

s.o 

s.o 

16 

1~ 

9.6 

8 .9 

8.6 

7.9 

7.0 

6.2 

6.6 

6.2 

6.o 

4·8 

(.8 

s.o 

, , 4 4.2 

4.8 

8·4 

7.0 

Wontb Seoondtoot-<iayo Winimua Moan Runott in acre-teet 

Calen~ar year 1940 . .. . ... . , ... .... ..... . 

l,], : : ::: !' :: 

0 

88,612 .7 

~7.~46 

171,7~2.6 

---- - -- 12, 72& 64,163 

~5 810 

18, 272 ~6,858 

47 ,lll 

44,379 

1,181 231.7 

0 Z3 , 700 

4,680 

33 ,700 

4,150 

11,300 

11,400 

4,760 

9,480 

8,720 

10,:500 1~9 

16 

0 

.2 

64 

0 

82 

90 

82 

46 

66 

69 

~1 

ll 

4.2 

0 

2,9&4 

1,206 

469 

410 l , g!4 

1 , 1&5 

609 1,157 

1, 570 1,432 

~e.1 

7.72 

later year 1940-41 · · · · · · · · · · ·.. . .. .. .... ~76,686.4 M,700 o 1,029 

Pe&k d.ieobar!e ... RoT. 24 (5r15 p.m.) 43,000 uo.-tt.J Peb. 3 (1&30 a.m.) 1&,200 aeo.-tt. 1100 P •lll •J .1. ,100 eec.-tt . J !'Say 6 (9r00 p.m.) 1:5,600 aeo.-tt. 

0 

17&,800 

74,070 

340,700 

25,240 

107,400 

71,030 

36,240 

71,120 

9~,440 

88 ,020 

2 ,340 

480 

746 ,200 

~r· 7 
BAN JACHII'O RIVER BASIN 57 

West For k or San Jacinto River near Conroe, Tex. 

Location.- Water-stage recorder, lat. 30°15' , long . 95°28' , at bridge on u. s. Htghway ?5, 285 rest upstream rrom bridge or International-Great Northern Railroad , 3t miles downstream rrom Lake Creek , and 4t miles south or Conr oe , MOntgomery County. Datum or gage is 100 .3 rest above mean sea level, datum or 1929 . 

Drainage area .- 832 square miles . 

Records available .- 11ay 1924 to September 1927, JUly 1939 to September 1941. 

Extremes .- 11aximum discharge during year, 110, 000 second-rest Jov. 25 (gege height, 25.65 reet) , rrom rating curve extended above 43,000 second-feet on basis or velocity- area studies· minimum, ll second-teet Oct . 20-25. 

l924-27i i939-4l : 11aximum discharge , that or Nov . 25 , 1940; minimum, 9.3 secondfeet Oct. , 2, 1939 . 11aximum stage prior to 1940, 25.2 reet, present site and datum, in December 1913, according to information furnished by Missouri Pac!fic Railroad engineers, at railroa<1 

bridge 285 reet downstream (discharge , 101,000 second-rest\ rrom rating curve exten<1e<1 

above 43 ,000 secon<1-!eet on basis or velocity-area studies . 

Remarks .- Records !air except those above 45,000 second-feet, whi ch are poor. No large --arveFsions above station. 

Diaoharce . in eeoond-teet , water year October 1940 to September 194.1 

Day Oat . No·v . Dao . Jan . Feb . War . Apr . May June July Au& . Sept . 

1 l~ 7ll 799 1,180 271 7~2 27l 684 201 222 72 26 2 l~ 57 560 7l2 1,300 ~8 245 698 25~ 166 66 28 

3 1~ 74 461 588 2,600 ~42 a641 952 17~ 140 61 28 4 1~ 5~ ~42 5 44 5,210 ~ &.1,620 984 147 l22 58 27 

5 l~ 72 271 5~0 4,320 271 •1,370 1,:500 us 109 57 26 

6 l~ 108 262 490 2,110 604 •1,180 1, 6:50 98 100 5~ 26 

7 1~ 89 770 464 1,080 3,360 al,080 2 ,260 1,840 9~ 55 26 8 l2 88 1,~40 451 800 4,240 .~o 1,710 2,080 88 64 27 9 l2 108 1,240 425 698 6,~00 ~8 1 , 280 988 S4 69 ~1 

10 l2 1~6 l,SOO ~88 558 640 246 566 647 82 ell ~2 

ll l2 186 2,060 ~42 400 1,520 201 271 4,120 ~ 62 32 12 12 ~20 6 , 110 ~10 ~20 619 17~ 208 11,100 172 61 ~l 

13 12 222 19,900 290 290 425 159 17~ l~,eoo ~5l! 56 ~l 

14 12 l~ 20,200 1,190 271 ~53 150 163 6,7eo 659 51 30 15 l~ 155 ll, l!OO 2 ,320 253 ~20 142 138 l!,OOO 1,05o 46 31 

16 1~ 1~5 9 , 300 3,600 2 38 ~ 128 al21 2,190 1 ,040 42 48 17 l~ 91 ~10 4,HO 230 ~ 115 allO ,,260 1,630 41 50 

18 12 69 ,~60 770 222 ~~ lll a104 :5,930 1,140 38 41 19 12 55 3,440 3 ,270 241 690 106 a100 1,670 636 ~6 ~7 

20 l2 46 1 , 680 1,780 1,570 ~.280 105 a98 673 ~20 35 ~5 

21 ll 42 961 759 1,560 4,480 162 94 ~S 194 ~4 ~ 

22 ll 42 742 503 1,560 4,:590 1,310 160 150 ~2 H 

23 l2 208 551 400 1,960 ~.560 6 , 790 310 530 l26 ~2 62 

24 ll 36,700 451 ~76 2 ,700 1,950 19, 700 490 42 llO 32 1 , '740 25 12 92,900 412 364 2 ,880 790 13,000 ~21 456 98 31 1,070 

'26 12 40,600 920 4l2 ~.380 477 7,370 1~7 

~~ 89 29 ~88 

27 1 4 18, 600 1,180 503 3 ,660 600 3,760 ~7 82 28 262 

28 16 8,400 1,670 46 4 1, 840 670 1,740 ~63 

~~~ 79 27 194 

29 52 3,580 2 ,:560 ~64 - 614 846 ~~ 89 27 152 30 29 1,660 3, 220 ~00 - 477 756 201 27 75 27 132 31 25 - ~40 280 - ~42 - 155 - 74 27 -

Wontb Second- llaxiiiUa 1Un1aua Moan Runoff in 

roe>t~ayo aor ... te8t 

October ......... . . . . ... .... ... . .. .......... 455 52 ll 14.7 902 

November . ......... . .........•.. . ....•...... 205,010 92,900 42 6,8M .06,600 

Oeoeabe r . . , ... .. .... .. . ........... ~ ........ 108,002 20,200 262 3,48. 214,200 

------- ------ ----- - ---- -- ------ Calendar year 1940 .... .. ....... .... ... .. ~98,993 92,900 ll 1,090 791,300 

- - - ---- ------ ------ -- ---- ------ January .... ......... .. ......•... . ... . . .. ... ~1,387 4,140 280 1,012 62 ,260 

February .. ... . . . . . ... . . .. . ..•.......• . .. . .. 42,372 5 , 210 222 1,513 84,040 

March ....... . . .. . .... .. ... .....•. . ...•.. .. . 46,817 ~ 271 1 , 510 92,860 

Ap ril ..........•....... .. ......• · · . · • · · · · · · 6-l,?-&2 19,700 105 2 ,158 128,400 

May . ............................ . .. .... .... 18,2-ll 2,260 94 524 32,210 

June .. . ... .... . .... . . . . . ....•...... . ....... 60 ,847 1~,800 98 2 ,028 120,700 

July ........ ....... . ....... . , ...... .... .... 9,354 1,530 74 302 18,550 

Au&uat .. ........... .. ... .. . ... . .. ...• · · · · · · 1,412 72 27 46.5 2,800 

September ......................•.. . ........ ol,697 1 , 7 40 26 157 9,320 

Water year 1940-41 ········· ··· ········ ·· 591 ~~6 92 900 11 1 620 l 7~ 000 

Peak dlaohac;e•·- Hov. 2& (8 a .m.) 110,000 aeo.-rt.J Dec· 13 (10 p.m.) 27,500 eeo . -tt . J A.pr. 24 {3 p.m.) 21,2 eeo.-rt.J JUne 1.2 {11 p.m. ) 20 , 400 seo.-rt. a No gage -height reoordJ discharge computed on b&aie ot recorded range 1n "Stage, records tor station 

n.ear Humble, a.nd weather recorda. 
58 SAN JACINTO RIVER BASIN 

West F'ork o! San Jac i nto River near Humble , Tex. 

Locati on .- Water-stage recorder, lat . 30°01 ' 35" , long . 95°15 ' 30" , at bridge on U. S. Rl g}lway 59 , 1, 160 teet upstream !rom Texas & New Orleans Railr oad br idge , about halt a mile downstream !rom Spring Creek, and 2! miles no r th o! llumble , llarrts County . Da tum or gage ts 30 .53 teet above mean sea leval, datum or 1929 . 

Drainage area .- 1,811 SQUare miles . 

Records available.- October 1928 to September 1941 . 

Average discharge .- 12 years (1929- 41} , 1, 059 second- teet . 

E:xtremes.- Maxtmum dischar ge during year, 187, 000 second-teet ov . 25 , 26 ; maximum gage height , 32 . 7 teet Nov. 26 , arrect ed bJ backwater !rom East F'ork ; min imum discharge, 29 second-teet Oct . 10-13, 22- 25 . 1928-41: Maximum discharge , 187, 000 second-teet May 31 , 1929 , Nov . 25 , 26 , 1940; maXImum gage he i ght, 32 . 7 reet, present recor der stte and datum, May 31 , 1929, Nov . 26 , 1940 ( rlood or Nov . 26 , 1940, atrected by backwater !rom Eas F'or k and It Is belteved nood or May 31 , 1929, occurred under similar conditions}; minimum d ischarge observed , 14 second-teet Sept . 8-10 , 1931 . 

Remarks .- Records good except those above 30, 000 second- feet and those !or periods o! no gage- height record , which are poor . No d ive rsions above station. 

Discharge . i.n second-teet. water year Oc t ober 1940 to Septembe r 19 41 

Da Oct. Nov. Dec . Jan . Feb . Wa r . Apr. Nay June July Aug . Sepl . 

1 35 449 

:~& 2 , 680 a473 2 , 400 664 2 , 800 1,900 928 250 64 

2 34 345 1, 520 1 , 250 1 , 350 557 2 , 300 1, 520 805 195 67 

3 32 275 1,750 1 , 180 3,010 a958 1 , 040 2 , 200 1,260 777 156 1 39 

4 31 a195 1,430 1, 040 4, 270 a716 2 , 050 2 , 300 920 735 146 134 

·5 31 al56 1, 2 10 950 6 , 280 5 45 1 , 750 2 , 910 631 6 44 182 109 

6 3 1 a235 1 ,010 898 4, 390 634 1,520 5 , 800 365 527 199 85 7 31 a345 1,070 840 2 , 280 4, 600 1 ,080 6 , 800 2 , 980 315 203 89 

8 30 a 320 2 , 030 777 1 , 520 ? ,160 1,070 5 ,160 7 , 720 216 182 207 

9 30 a 315 2 , 250 7 49 1 , 220 8 , 600 1 ,030 3 , 460 4, 890 171 2 45 826 10 29 a398 2 , 220 716 a912 6 , 420 690 2 , 300 2 , 510 178 365 497 

ll 29 a 295 2 , 360 696 a819 4 , 640 443 1 , 480 8 , 320 174 280 335 

12 29 a386 1 2 , 800 a650 a690 2 , 160 39e 1 , 140 13 , 500 355 199 408 

13 29 491 31, 300 a 587 a557 1 , 340 340 898 19 , 900 735 149 345 

14 30 330 48, 200 2 , 270 a551 965 310 670 18 , 600 1, 380 114 191 

15 32 225 37 , 400 5 , 000 a545 670 280 533 9, 460 2 , 150 109 160 

16 31 195 23 , 400 6 , 280 a533 527 255 473 5 ,100 2 , 250 93 1,970 17 31 156 17,200 8 , 060 a521 557 230 414 4,400 2 , 560 85 1,340 18 31 114 13 , 200 7, 520 a509 1 , 310 212 370 6 , 880 2 , 980 78 1 ,080 19 30 91 9 , 320 6 , 440 a 497 2 , 630 195 340 5,150 2 , 400 72 728 

20 30 ·74 5 , 730 4,860 a512 9 , 850 186 345 2 , 480 1 , 800 69 533 

21 30 6 4 3 , 520 2 , 560 2 , 400 12 , 400 225 325 1 , 610 1 , 380 67 414 22 29 58 2 , 620 1 , 560 2 ,450 13 , 500 1 , 560 295 1 , 480 1, 050 66 310 23 29 92 2 ,100 a1, 2 40 2 , 970 10, 000 11,600 431 1 , 850 791 64 739 24 29 U::040 1 , 610 a1,020 5 , 240 6 , 280 30, 200 612 1 , 840 533 66 11,300 25 29 , 000 1,380 a868 5 , 960 3 , 340 48,700 756 1 , 3 40 403 64 12 ,100 

26 30 137 , 000 1 , 790 a819 6 , 280 2 , 000 30 , 900 497 1 , 260 350 61 6 , 9 10 27 31 63,400 2 , 300 a861 5 , 800 1 , 610 14, 700 340 950 370 61 3 , 630 28 34 27 , 300 2 , 560 a861 4 , 490 1 , 520 7,290 1,070 840 360 61 2 , 350 29 78 12 , 000 2 , 980 a749 - 1 , 380 3, 990 2 ,140 958 310 67 1 , 660 30 171 5 ,570 3 , 700 a593 - 1 , 100 3 , 220 3 , 8 40 1 , 260 320 76 1 , 260 31 238 - 3 , 840 a521 - 854 - 2 , 800 - 275 66 -

Won th Second- Maximum IUnimum Wean Runoff in root-days acre-teet 

Octobe r .......... .. ..... ... ······ . ......... 1 , 34.4 238 29 45.4 2 , 670 November ........... ... .. .............. 361, 914 137,000 58 12 ,060 71 7 , 800 December .. ... . .... ..... ..... .... ..... ... ... 247 , 570 48 , 200 1 , 010 7,986 491,000 ---- --- --- --- --- --- ------ ------ Calendar year 1940 .0 ..... .. ............. 7 44, 712 137 , 000 29 2 ,035 1 , 477 , 000 

------- ------ -- -·--- ------ ------ January .... . .. . .... ... ....... . ······ ·· ···· 65,365 8 , 060 521 2 ,109 129 , 600 February .... .. ... .. ........... ...... . ...... 66 , 929 6 , 280 473 2 , 390 132 , 800 March ............... .... . . ....... . . . . . . . . . . 114 , 016 13, 500 527 3 , 678 226 ,100 April . ... ....... .......... ....... .. . ...... 166 , 685 48 , 700 186 5 , 556 330, 600 Nay .............. •. . • .. , ....... •. ····· ·· ... 55 , 799 6 , 800 295 1 , 800 110, 700 Ju.ne ..... . .......... .. ... . ~ ..... ..... .. . . 131, 874 19 , 900 631 4, 396 261, 600 Ju ly ...... .... ... ... ...... . ·· ····· ······ · 28 , 222 2 , 980 171 910 55 , 980 August . ... . .... . ... ..... ·· ······· ·· ··· ··· 4, 090 365 61 132 8 ,110 September ......... ... ................. ..... 49 , 980 12 ,100 6 4 1 , 666 99,130 

Water year 1940- 41 . . . . ....... . ... . ... .. . 1 , 293, 788 137 , 000 29 3 , 545 2 , 566 000 

ao~~~ ~aA~~a; <~~v~.;~><;~ g~ !o~~ ~~~ ; ~~~ ~- e>P~:: ~~-;~~ :: r~c- 14 (5 p .m.) 5 2 , 300 

a No gag e -height r ecord; discharge computed on baaia or re corded rango in otago o.nd records for West Pork ot San Jaclnto River near Conroe and Spring Creek near Spring . 
SAN JACINTO RIVER BASIN 59 

San Jacinto River near Hutrman, Tex. 

Location.- \Jater-stage recorder, lat . 29°59'40" , long . 95°08 ' 00", at Beaumont, Sour Lake 

& western Ra!lway bridge 0 .4 m!le downstream !rom confluence ot East and \Jest F'orks or San Jacinto R1 ver and 3 .4 m!les southwest o! Hu!rman , Harris County. Prior to July 10, wire-we ight gage at same site and datum. Datum o! gage i s 1.93 teet above mean sea level , datum or 1929 . 

Drainage area .- 2 , 791 s quar e miles. 

Records available.- Octobe r 1936 to September 1941. 

Extremes.- Maximum discharge obse rved during year, 253,000 second-teet Nov. 26 (gage height, 51 .2 t eet); minimum obse rved, 58 second-t eet Oct . 8-10. 

1936-41 : Maximum d ischarge , that o! Nov . 26 , 1940; minimum observed , 49 second-teet 

Sept . 1, 1939, and Sept . 13, 14, 1940 . F'lood o! May 31 , 1929, reached a stage o! 50.3 feet , according to in!onnation furnished by Beaumont , Sour Lake&: \Jestern Ra!lway Co. (discharge , 237,000 second-teet). 

F'loOd or Apr!l 1876 reached a stage about H teet lower, according to in!onnation rur- nished by local resident . 

Remarks.- Reco rd s !air. Gage read once dally Oct . l to July 9 , oftener during high water . --rolarge diversions above station . 

Discharge, in second-teet water year October 1940 t o September 1941 

Da Oct . Nov . Dec . J an . Feb . War. Apr . ll8.y June July Aug . Sept . 

1 72 569 6 , 080 4,010 920 :5 , 690 1 , 310 5 ,670 4,410 980 416 182 

2 69 471 :5,650 2 ,:560 :5 , 400 1,940 1,210 4,410 4,090 1,240 354 182 

3 68 411 2 , 540 1,800 5, 960 1,420 1,870 4,010 2 , 640 1,140 322 234 

4 67 354 2 , 010 1 , 660 7 , :510 1 , 110 3 , 240 :5,850 2 ,360 1,110 314 268 

5 67 380 1 , 820 1 , 450 9 , 790 920 2 , 600 4, 490 1 , 800 980 333 240 

6 63 467 1 ,480 1 , 280 9 , 790 1 , 180 2 , 010 8,090 1,260 860 329 210 

7 61 519 1 , 380 1 , 210 5, 480 6 , 130 1 , 560 9 , 210 7 , 660 682 443 288 

8 68 554 2 ,610 1,110 3,540 11 ,400 1,420 9 , 9 40 10,400 524 420 281 

9 68 564 3 ,390 1,040 2 , 720 12 , 000 1 , 520 7 , 8 30 12,900 452 610 687 

10 60 684 3 , 390 980 2 , 360 12 ,900 1 ,14:0 4,730 12,000 443 534 752 

11 62 632 3,200 860 1 , 760 8 , 2:50 788 2 , 720 16, 800 514 467 621 

12 63 684 1 4,400 711 1 ,480 :5 , 540 626 1 , 9 40 29 ,400 758 380 519 

13 64 621 55 , 300 740 1,180 2 , 220 579 1,560 32 , 100 980 318 443 

14 67 676 83 , 000 1 , 870 980 1 , 660 M9 1 ,240 33, 500 1 , 520 278 284 

15 68 476 78 , 600 6 ,480 860 1,:uo 514 950 20,400 2 , 290 255 252 

16 66 384 48 , 600 8 , 090 768 1 , 040 457 800 9 , 710 2 ,860 234 1,970 

17 63 325 32 , 000 9 ,790 682 1 , 040 429 734 5,960 2 , 940 221 2 , 280 

18 63 267 22,900 10,100 616 1 , 620 411 6M 7 , 060 3 , 690 205 1 , 560 

19 62 246 16 ,:500 8 , 790 605 4,980 388 595 ?,:no 3 , 090 203 1 , 040 

20 62 232 9 , 010 6 , 660 1 , 060 16 , 700 375 734 3 , 770 2 , 220 l-98 694 

21 61 203 5 , 200 :5 , 160 3,9:50 24 , 000 398 1 , 590 2 ,430 1 , 620 193 495 

22 61 186 3 , 700 2,220 4 , 010 21 , 000 1 , 720 920 2 , 150 1,380 186 362 

23 62 210 3 , 200 1 , 730 4 , 940 17 , 800 17 , 700 1 , 010 2 , 360 1 , 040 184 838 

24 62 10, 900 2 , 260 1 ,4 50 9 ,490 11 , 700 46, 600 1 , 380 2 , 720 800 184 21 , 100 

25 64 108 , 000 1 , 870 1 , 180 10 , 200 5 , 660 74, 200 1,110 1 , 9 40 621 193 29 , 900 

26 62 240 , 000 2 , 940 1 , 110 9 , 210 3,160 61,600 860 1 , 870 549 191 20, 000 

27 67 172 , 000 3 ,850 1 ,110 8 , 230 2 , 430 32,200 860 1 ,560 534 184 10,600 

28 87 77 , 200 4 , 090 1 , 060 6, 600 2 , 430 15 , 800 950 1 , 340 569 196 5 , 520 

29 164 27 , 100 4,490 1 , 040 - 2 , 360 7,570 5 , 220 1,380 505 221 3,360 

30 146 12 , 300 5 , 030 890 - 2 , 010 5 , 960 10,100 1 ,4 50 544 213 2 ,290 

31 336 - 5,300 776 - 1 , 620 - 7 , 4-40 - 452 198 -

Month Second- Max la\111 11Un1•ua lie an Runorr in root-days acre-tee t 

October ...... ... .. , . ... . . .... .... . . . . . . . . . . 2, 459 336 58 79 . 3 4,880 

Noveaber .. . ..... .. .. . . .... .. ... ... ......... 657, 415 240 , 000 186 21 , 910 l,:So.t , OOO 

Decembe r ....... . ... .. .... ............ ...... 4 33 , 590 8 3,000 1 , 380 13, 990 860 , 000 

---- --- ------ ------ ------ ------ Calendar year 1940 ....... .. .. ... .. ...... 1 , 289 , 055 240,000 50 3, 522 2 , 557,000 

------- ------ ------ ----- - ------ J anuary .. ... ...... . ... .. . ............ , . ... 65,737 10,100 711 2 , 766 170,100 

February ....... . ....... . ..........•........ 117 , 861 10, 200 605 4,209 23~ 800 

March ........ , . .... ... .. , ..... . .... , . . .. . .. 189 , 200 24, 000 920 6,103 375,300 

April . ..... ..... ..•.... . ..•..•.. . ... .•... . • 286, 644 74, 200 375 9 , 565 568 , 600 

llay . .........•..•.••...••.••.•. • ..••.•.. , . • 105 , 497 10, 100 595 3 ,403 209 , 300 

J une ...... . . ..............• ... . ...•.. ..... . 244, 970 ~~ 5oo 1 , 280 8 , 166 485,900 

Ju l y ......... , . .•.... , .••.••. , . .• .••. • . .... 37,887 3,690 443 1 , 222 75 ,150 

Auguat .... .. ...... .. .. ... . •. .........•... .. 8 , 977 610 184 290 17,8 10 

September ... . ..... ...................... ... 107 ,342 29 , 900 182 3 , 578 212 , 900 

Water yea r 1940-4 1 ..... . . .... . . ..... .... 2,277 , 579 240 , 000 68 6 , 240 4 , 518 , 000 

{:l;~~-1 8:10Se~~ ~;t . 6 ~! ~4m(~ ~~~ ~s~;go ~!~ : -~ ; ~:pt~ 2~ (7~3~ ~) s;te;;g· ~e:~:rt~5 

488588 0 - 43 - 5 
60 SAN JACINTo RIVER BASIN 

Spring Creek near Spring, Tex . 

Location.- Wire-weight gage , lat . 30°06 ' 35' , long. 95°26 ' 10", at brldge on U. S. Highway 75, 4,500 teet upstream !rom brldge o! International- Great Northern Rallroad , 2.4 

miles northwest or Sprlng, Harris County, and 4 mlles dovmstream !rom Wlllow Cr eek . Datum o r gage is ?8 .12 teet above mean sea level, unadJusted. 

Drainage area.- 400 square mlles. 

Records avallable .- Apr ll 1939 to September 1941. 

E:xtremes .- Max:lmum discharge duri ng year, 42, 700 second-teet Nov . 25 (gage hei ght, 26.6 

f eet, !rom graph based on gage readings); mlnlmum observed, 9 . 7 second-teet Oct. 9 . 1939- 41 : Maximum dis charge, that or Nov. 25 , 1940; mlnlmum observed, 7 . 7 second- teet Sept. 13, 1940. Maximum stage known , 29.3 reet May 30, 1929, !rom !loodmarks ldentl!led by local 

resident (discharge , 48,300 second-teet) . 

Remarks.- Records good except those !or perlod or rio gage-helght record , whlch are poor. ---uage-read twlce dally, o!tener durlng hlgh water. No dlverslons above station . 

Diacbarga. in second-feet. water year October 1940 to Sapteaber 1941 

Day Oct . Nov. DeC. Jan . 

l 10 74 274 192 2 10 124 2~5 187 3 10 71 202 177 4 10 41 158 197 

5 10 55 129 182 

6 10 115 126 140 7 10 208 166 129 8 10 110 276 122 9 10 61 46 4 118 10 10 67 ~30 122 

11 

12 

13 

14 

15 

10 

10 

10 

10 

10 

70 456 66 6 , 760 57 15,600 

5 4 15 , 200 37 5 , 590 

104 

98 

91 

438 

1,480 

Feb . 

91 ~68 

609 1 ,080 

9~ 

~4 

~5~ 

434 

257 167 

129 

118 

108 

101 

91 

War. 

213 

158 

1~6 

122 

112 

262 1,870 

oso 

2 , 210 

810 

6 

202 

162 

1~6 

129 

Apr . 

129 

11S 

172 

1~ 

2~5 

118 

101 

108 

242 

126 

91 

84 

78 

76 

72 

M6 

~28 

262 

286 

818 

1,420 

1 ,400 

1,180 434 

208 

158 

132 

122 

108 

98 

16 

17 

18 

19 

20 

11 

10 

11 

10 

10 

28 3 , 290 2 ,140 

1 , 500 1 , 010 

8 4 122 70 

67 

66 

64 

62 

91 

84 

78 

74 

73 

24 3,900 78 140 21 1,900 76 401 20 791 526 

268 81 856 18 435 286 2 , 740 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

10 18 10 18 10 ~1 

10 2 , 770 

10 31, 500 

ll 28 , 400 11 8 , 540 13 2 ,220 

40 85 4 109 402 

66 1 

llontb 

October . . . . . November .. . . 

400 

435 

292 

218 

182 

204 

~92 

526 

69 4 

522 

257 

December ... . . . ........... . . . .. . 

192 

162 

144 

1M 

1~2 

784 784 

592 1,650 2 , 670 

1.22 2 ,020 115 779 118 316 

104 

94 

87 

Calendar year 19 40 . . . ... ...... . .. . . . ... . 

January . .. . . .... ..... ..... . •. .• . . . . . . . . .... february . . . . . . ..... . . .. ... ..... . ...... . . .. . March ... ... . ........ . .• .. ....... . .... . ..... April. . . .. .. .•.... . . . .•..•. . , ....•..•...... llay . ..... . ..... .•. . • . .• . ... • ..•..•...... . .. 

June .. .. . ... ... ..... . . . . .. ................ . July. .. .. . . .. •..•. .• . . .... Augu.st. . ... . .. . .. . .. .. .... , ... . .... . Septe11ber. ...... . .......•. . ....... 

Water year 194.0-41 .. 

5 ,970 

5 ,010 1,~ 

609 

~28 

66 

122 3 ,960 

26 ,900 18 , 200 

240 3 , 990 230 1,330 

73 

78 

81 

69 

63 

59 

61 ~40 558 

262 406 

172 479 

140 

344 

1 , 680 

1,160 449 

Secondfoo·t-daya 

502 16,07~ 

60,404 

155, 764 . .{ 

10,627 

16 , 363 29 , 028 58 , 303 11, 83"; 19,575 

4,4.17 

1,344 

11,325 

298 798 

Maxiaua 

109 ~1 500 

15, 600 

31, 500 

2 ,140 

2 , 6?0 5 , 970 

26 , 900 

1, 680 2 , 670 

101 4,020 

~1 500 

Juno 

242 

202 

1~6 

94 

78 

78 1 , 110 1 , 980 

86~ 

292 

2 , 290 2 , 670 2 , 440 

1 ,190 

420 

2 46 

257 

874 6~ 

197 

140 

286 

420 

172 

~40 

449 

~40 

304 

494 

~28 

Yiniatlll 

10 

18 

126 

7. 7 

87 

76 

112 

62 

59 

78 

49 

28 

27 

10 

July Aug . Sept . 

140 

108 

87 

78 

71 

66 

62 

58 

56 

55 

56 

78 

257 

280 

a276 

57 

54 

&2 

~ 

49 

62 

78 

76 

Mean 

16-2 2 ,536 

1,949 • 

426 

~~ 

549 

9~6 

1,943 382 

652 

142 

~78 ~-· 

819 

5 4 

48 

44 

41 

69 

78 

59 

60 

101 

72 

55 

H 

41 

38 

~7 

~6 

4 

~4 

3~ 

33 

32 

31 

~1 

~1 

30 

~0 

~0 

30 

30 

30 

28 

27 

29 

41 

43 

~ 

28 

3( 

261 

1~ 

78 

74 

81 

~ 

~6 

~· 91 

246 

118 

65 

46 

~6 

1 

12~ 

2 , 880 4,020 

1,~ 

59'3 

257 

1~ 

104 

Runoff .tn 

adr&-fee1. 

996 150,900 

119, 800 

309 , 000 

21, 080 30, 470 57 , 580 115 ,600 23 , 480 38, 830 8 ,760 2 ,670 

22,460 

592.600 

a Ko gage-hei ght racordJ c11acharge computed on ba si a or records tor nearby stations and weather recorda. 
SAN JACllfi'O RIVER BASIN 61 

East Fork or San Jacinto River near Cleveland , Tex. 

Location .- Water- stage recorder, lat . 30°20 ' , long . 95°07 ' , at br idge on State Hlgllway 105 , 83 teet downstream !rom br idge on Oul! , Colorado & Santa Fe Ra i lWay, l t rnlles west or Cleveland , Liber ty County, and 4 miles downstr eam !rom Nebblets Creek . Datum or gage Is 113 .0 feet above mean sea level, datum or 1929. 

Drainage area .- 330 square rnlles . 

Records available .- Apr11 1939 to September 1941. 

Extremes .- Maximum d ischarge dur ing year, 77,500 second- teet Nov . 24 (gage helgllt , 20.37 

teet) , !rom ratlng curve extended above 14, 000 second- feet by logarithmi c plotting; minimum, 7.6 second- feet Oct . 10-13 . 1939-41 : Maximum discharge , that or Nov . 24, 1940; minimum, 7 .2 second- teet Sept. 6 , 1939 . 

Maximum stage known prior to 1940, 19.9 feet May 5 , 1935, according to l n!orrnatlon 

furnished by local r esident (discharge, 69,500 second- teet, !rom rating curve extended above 14, 000 s econd- teet by logarithmic plott ing). 

e"'af~~;.; ~c~~~e ~~t~~~~pt those a bove 15 , 000 second- tee t, wh ich a r e poor. No large 

Discha rge. i n second-teet. wa t e r year Octob r 1940 to Septembe r 19 

Oa) Oc t. Nov . Dec . Jan . Feb . War. I Apr . lla y June July Aug . Sepl. 

l 8.9 59 278 250 104 204 128 618 7~ 87 45 2e 2 8 . 9 5~ 22e 2~2 656 16 4 121 727 ~88 71 45 28 3 8.6 ~~ 

) 

219 1 , 120 1 46 121 618 211 65 u ~ 

4 8.3 2 4 204 2 ,:100 7 117 ~86 1~0 62 ~9 4l _5 8 . 6 27 190 5~ 124 162 517 101 56 M 4 

6 8.6 52 a266 187 458 2~ 1M 1 , 260 85 52 47 ~ 

7 8 . 6 42 1 90 u s 9 45 119 2 , 800 278 49 45 28 8 ~ 29 192 u s 1 , 76 0 119 1 , 920 7, 500 48 47 25 9 a.o ~6 1 66 ~~ 2 , 280 104 788 ~ 47 47 29 10 7 . 6 33 1,060 149 189 l , O.fO 94 2:<6 1,600 44 48 52 

ll 7. 6 57 452 ~5 151 266 8~ 17~ 1 , 7 40 47 u 47 

12 7 -6 139 ~. 130 126 1~5 189 82 144 7.020 70 H 3 

13 7 . 6 87 14 ,100 119 126 1 58 76 131 4,200 ll~ ~8 29 

14 a.o ~ 10, 300 318 117 9 68 113 1 , 910 171 ~5 28 

15 ~ 7 3 , 990 827 106 1~1 65 10 4 M5 ~48 ~2 28 

16 a.~ 27 2 , 620 1 , 400 99 128 62 95 ~78 268 l 37 

17 9.9 24 ?. , 380 1 , 750 94 122 59 92 "58 268 ~ 5 4 

18 9 . 2 22 2 , 060 2 , 0 50 92 158 57 87 ~78 250 29 

19 8.6 22 1 ,030 1 , 280 95 1~ 56 ~ 200 173 28 ~ " 20 8 . 3 20 ~68 ~52 ~3 792 56 85 144 106 28 ~ 

21 s.o 20 278 215 805 1,100 57 287 12 4 75 28 27 

22 a.~ 20 227 175 1 , 6 40 1, ~ 182 535 106 75 27 25 

23 8.3 157 194 149 1 , 410 40 1 , 620 660 97 60 26 29 

24 8 . 6 26 ,100 17~ 148 728 46 4 8 , 220 548 88 54 30 732 

25 9 . 9 43 , 200 162 140 8 46 215 6 ,490 128 85 60 ~ 1 , 120 

26 12 13 , 700 328 130 1, 0 40 ~ 2 , 680 94 80 5~ 35 1 ,010 

27 13 5 , 100 598 1~ 957 226 1 , 210 80 78 57 29 400 

28 l5 2 , 4.10 1 ,040 146 348 8 351 1 40 82 59 28 139 

29 80 1,080 ~ 131 - 278 ~6~ 571 9 2 59 32 94 

~ 7~ ~58 1 , 260 ll~ - 7~ 488 1 ,170 1 47 29 ~ 

31 ~3 - 452 10~ - 1 42 - 882 - 4"' ~ - Month Second- Mui•ua Mlni•u. lloan Runotr in root-days aore-;.tee t 

Oc tober ... . ................... ............ . ~6.9 80 7.6 H .1 867 

November . . . .. .. . ....................•... ... 9~ 021 43 , 200 20 3 , 10 1 , 164 , 500 

December . . . . . . .. . . .......... ............ .. . 49,993 1 4,100 - 1 , 613 99 , 160 

------ - ------ ------ ------ -- ---- Calendar ye a r 1940 ... ...... .. ....... .... ,02 ~ 45, 200 7 . 6 481 3 49 ,100 

------- ------ ------ --- - - - - ----- January .. .... . ..... .. · · . .. •·•· ·· · · .. · • ·· · · · · 1.1 , 916 2 , 050 10~ 4 23,6-40 

February ... . ........ . ... . . . .•.. . . . ........ . 16 , 498 2 , 300 92 589 32,720 Marc h ... .. . .. . . . .... . . . ... .. . ... .. ... .... .. 15 , 22 4 2 , 280 122 491 30 , 200 

Ap r il. ........• .. •..•. . .. . . . • . .•.. · · · · · · · · · 23, 562 8 , 220 56 786 46 , 7SO llay . ..... . ....•..•..•. .. . . ..• . .•.... . •..... 16 , 070 2 ,800 80 518 31 , 870 June . ..................... . ................ ~2 . 422 7, 500 78 1,081 64 , 31 0 

~~ -·· ··········· ······· ······ ······ 026 48 44 97.7 6 , 010 Augusl ......................•..•..•........ 1~4 ~ 26 35 . 9 2 , 210 Septembe r . . ......... ....... ......... ....... 4, 351 1 , 1.20 25 146 8 , 630 

Wa t e r yea r 1940- ·U . . ' . . . . . . . . . . . . . . . . . . . 26 ~5.9 ~ 200 7. 6 73~ 6~0, 800 

.:~f ~B(ij~~:: ·J~e 1( m~ :} ~gc> ~o~ ;~~:h~ 13 (9 p .m.) 1 7 , 700 aeo.-tt .1 Apr . 2 4 (3 130 

a No gage - hei ght rooord J discharge compufod on baai a of re corded r ange 1n stag e , r ecorda t or nearby atat1ona , and weather re cords . 
62 SAN JACINTO RIVER !lJ'.SIN 

Burtalo Bayou a t Hous tl:ln, Tex . 

Locati on .- \later- stage recorder, lat. 29°45 ' 42" , long . 95° 23 ' 52' , at \laugh Drive Bridge !n Houston , Harris County, hal! a mlle upstream !rom bridge on Texas & New Or l eans Ra!lroad and 3t miles upstream !rom lihlteoak Bayou . Datum or gage ls 4 . 08 !eet below mean sea leve l , datum o! 1929 . 

Dr ainage area .- 326 square miles. 

Records available .- lay 11'36 o September 1941. 

Extr emes.- MaxiiiiUIII discharge during year, 6 , 220 second-!eet June 11 (gage height, 27.83 t eet); mi nimum , 4. 0 second-!eet Oct . 21 . 

1936- 41 : Max1IIIUIII dischar ge, 9, 500 s e cond- teet May 27, 1936 (gage he i gh t, 32 . 5 

! eet, ! rom gr aph based on gage r eadings) ; mi nimum ftOt determi ned. 

l'.axlmum s tage known , 54.4 reet, present s l te and datum, Dec . 9, 1935 (d ischarge , 40, 000 s econd-!eet, rurnlshed by M. J . McCall , engi neer !or Harr is County) . Flood or l'.ay 31 , 1929, reached a stage or 48 . 9 r eet, present site and datum (discharge , 19, 000 second- .reet at bridge on Cap! tol Avonuo., 2 mlles downst ream !rom rating curve extended above 15, 300 second- ! eet, stage- discharge r elation :naterlaliy a rtected by i nterference or bridge ; rurr. lshed by 11. E. lihtte, asststan engineer, c t ty or Houston). 

Remarks.- Reco rds !alr except those below 100 second-teet and those tor periods or no or ----aouot:rul gage- height r ecord, whi ch are poor. No dl versl on above station . 

Discharge in second-teet water year October 1940 to Septembe r 1941 

Da Oot . Nov . Dec. Jan . Feb~ War . Ap r. llay June July Aug . Sept. 

1 17 56S 09 0 215 o95 

2 1 2 421 1,510 167 204 3 9.4 290 1 , 100 170 225 4 8 . o 158 769 161 398 5 7. ~ 532 516 125 342 

d3SO'. 98 2 , 340 d204 8 4 2,100 d l 2B 78 1,420 

96 70 1 , 0 20 8 4 66 1,380 

457 457 437 437 407 208 

296 118 

163 d81 

a3B 

a36 

a33 

a 30 a63 

3 

4 

4 

4 

5 

40 

5 

2 

4 

6 5.2 797 314 10 1 290 88 

7 5 . 2 Ql5 221 eo 284 98 

8 4.5 855 200 56 427 218 

9 4.5 674 209 o 42 378 303 

10 4 . 5 463 176 o35 d266 239 

11 6 . 2 3 47 191 • 30 dl67 167 

12 4.4 230 330 o27 d118 118 

13 4.3 227 950 024 d98 92 

14 6 . 0 149 2 , 250 639 d84 75 

15 21 eg g4 , 480 1 , 300 d72 67 

16 4.4 53 g 5 ,340 2 , 0 40 d65 61 

17 4.4 34 g4 ,750 2 , 370 d5B e 9 

18 4.4 23 3 , 710 2_, 160 d52 363 

19 4.3 19 2 ,830 i-:670 d45 1 , 020 

20 4.1 15 2 ,200 , 120 d56 2 , 740 

21 4 . 1 l4 1 , 770 675 d67 so 

22 4 . 1 15 1, 550 296 d219 3,820 

23 4.3 101 1,480 219 d239 3 , 550 24 4.3 645 1,230 1 50 d255 2,880 25 4 . 4 2,540 885 elOS 676 2 , 250 

26 l2 3,480 714 o82 895 1 ,470 

27 6 . 6 5 ,110 568 o70 804 905 28 14 4, 990 516 o64 592 497 29 420 3 , 920 477 o5B - 250 30 371 2 , 860 39 ~ o55 - 158 31 718 - 302 o52 - 122 

Month Second- oo~ays 

October . . ... . .. . .. ...... . ... .... ........ ... 1, 702.9 

Nove•ber .. . ... . . . . .. ... ... . .. .. .... . ........ 30 , 534 

December . . . . . ' . . . . . . . . .. ........ .. ......... 44 , 021 

---- -- - Cal endar year 1940 ·· ·· ·········· ····· ··· 89 , 610 . 3 

------- January ...... . .. . ... .. . .................... l 4,J59 

February ..... . ......... ·· · · · ·· · . . . ......... 7,471 

March ....... ....... . .... . . . . . ... . . . . . . . . . . . 25 , 552 

April ........•..........•. . • . . ........... . . 23 , 858 

Way . .............. .. .... ........ . .... . . . . 20 , 845 

June . .... .. . ... .... .. .. . .... . . . . . .. . .... . . 49 , 007 

July . ..... ........ ... .... ...... .. ..... . ... 9 , 742 August .... .... ... .... . .... . . .. .. . .. . ....... 2 , 351 September .... ....... ····· ·· ···· ······ ······ 37, 651 

Water year 19 40 -41 .. ...... ...... . ...... 267 , 093 . 9 

61 1 , 780 98 61 2 , 130 1 ,010 54 2 ,370 1,560 52 1 , 950 2 , 280 

48 1 , 280 2 ,470 

4& 72e r• .o•o .. 295 5.380 .. 111 5 ,760 42 108 5 , 570 

4.1 81 4, 500 

39 65 3 , 300 

39 54 2 ,450 38 46 1 ,850 38 42 1 , 350 37 44 9 42 

474 36 571 474 3 4 407 1,560 66 427 1 , 870 5 4 soo 2 , 300 49 ~47 

3 , 460 41 284 3 , 730 40 427 3,380 114 571 2 , 8 40 390 655 2 , 600 317 498 

- 350 -

Maximum Minimua 

718 4.1 5,110 14 5 ,340 176 

------ ------ 5,340 4 . 0 

---- - - ------ 2 ,370 24 895 45 3 , 820 51 3 , 730 37 2 , 340 34 5 , 760 9e 1 , 190 40 471 18 4.,920 35 

5,760 4.1 

d62 alll 4 4 

d56 

d56 

d55 d5 4 

a9& 

296 

849 1,090 

1 , 060 

1 , 190 1 , 120 872 

592 

249 

125 

122 

86 

70 

61 

55 

d52 

d46 

a45 

844 

a40 

Wean 

54 . 9 1,018 

1 ,4 20 

------ 245 

------ 6~ 

267 8 24 795 

572 1,634 

314 

75. 8 

1,255 

~2 

181 

273 

471 

260 

13& 

90 

66 

51 

39 

<129 d25 

d23 

d21 

d20 

d22 dl9 

dl9 

dl8 

d 44 

dl9 

44 

so 

47 

40 

~~ 

1, 

5 

3 

4 

so 

1 

5 

0 

7 

19 

26 

23 

2 

7 

6 

9 308 

1 ., 61 

980 0 

0 

0 

1 , 53 1 , 56 

1 , 2 90 

99 0 

2 

0 

0 

20 

78 1 , 06 1,28 3 , 8 

4,92 4,41 

3, 33 2 , 57 1 , 98 

-

0 

0 

0 

0 

0 

Runoff in acre-teet 

3 , 380 

60,560 

87,310 

---- -- 177,700 

----- - 28 ,480 14,820 

so,seo 

47 ~20 

41,350 

97 , 200 

19 , 320 4,660 

74,680 

529 ,800 

a No gage - height record,; d1sch&rge computed on ba sis or recorded ra.nae in stage and wea.ther recorda. d oa~e hei«.ht doubtful ; di scharge computed on b&ah of' engineer's notes and woo thor recorda. e Stage-dischar ge rela t i on doubtful (control dam being remo ved); die charge c omputed on basis or gage nelghts, engineer' s no te s , r ecorda t or n,ea rby sta t i ons, a.nd weather re cords. t Prag.mentary gago-hoigP,t re cord; discharge coc puted from partly est imated gage heights . g Computed from gra ph ba s ed on gage readings . 
SAN JACINTO RIVER BABIN 63 

Wh i t eoak Bayou a t Houston, Tex. .. Location .- Wate r -stage r ecor der , lat. 29046 ' 31" , long . 95023• 54• , at Yale Str eet Rr idgA, ! n Roueton, Harr is County, Juet downstream !rom Texa s & !lew Or leans Railr oad bridge and 2 mlles upstream !rom Little Whiteoak Bayou . Da tum or gage Is 4 .08 !eet below mean sea level , datum or 1929 . 

Drainage area .- 87 .0 s quar e mi les. 

Records available .- May 1936 to September 1941. 

E:xtr emes, ~ Maximum dischar ge during yeari 5, 100 s"eeond- !eet Sept . 24 (gage he ight, 40. 27 

f eet) · mii)Imum, 0 .4 second- root Oct . 4, 21- 25 . 19:36-41 : Maximum di scharge , that or Sept . 24, 1941; minimum, 0 .2 second-root Aug . 7, 8 , 1940. Maximum stage known , 51 . 5 !eet, present datum, Dec. 9, 1935 (d ischarge , 14, 750 

second- ! eet, furnished by M. J . McCall , engineer !or Harris County) . Peak discharge !or !load or May 31 , 1929 , 9, 360 second- feet (gage height, 47 . 0 ± 0 .5 toot, pres ent site and datum), computed on basis o! current-meter measurement at stage l root below cr est, made a t bridge l block downstr eam; fUrnished by w. E. White , assis- tant engineer, city o! Houston . 

Rema rks .- Records good . No diversi ons above station. 

Discha rge, in s econd-tee t , wat er year Oc t ober 1940 to Zeptembe r 1941 

Day Oc t . Nov . Dec . J an . Feb . Mar. Apr. llay J une July Aug . Sept . 

1 o. e 167 76 .,1 12 24 11 374 17 23 3 . 6 2 .7 

2 .7 115 54 22 101 lS 8 . 9 239 13 20 3 . 2 2 . 5 

3 . 6 29 36 18 119 1 3 7 . 7 175 e .g 13 3 . 2 2 . 8 

4 . 6 11 24 15 72 11 6.8 197 6 . 8 7 . 7 3.2 3 . 2 

5 1.6 143 17 12 36 8 . 6 5 . 8 381 5 . 4 5 . 8 3 . 8 3 . 8 

6 3 . 2 283 13 11 57 10 5. 4 752 5 .0 5 . 4 6.6 2.7 

7 1 . 6 173 15 9.3 126 72 5 . 4 597 504 5 .4 13 3.2 

8 1 . 0 47 1 2 8 . 2 Bl 123 5 . 0 287 578 6 . 5 22 8.2 

9 . a 25 12 8.2 41 56 4 . 4 . 105 686 5 . 6 60 12 

10 . 7 35 11 9 . 6 24 28 4 . 4 58 486 ... 26 28 

11 . 6 66 17 8 . 9 18 18 ... 40 2 , 590 1 9 13. 101 

12 . 6 82 212 7 . 7 14 p 4 . 2 28 3,000 146 e .o 123 

13 .5 42 928 6 . 8 13 9 . 3 3.8 22 1 , 400 314 5 . 2 67 

14 .. 19 1 , 290 487 11 7 . 5 3 . 6 17 713 121 4 . 0 32 

15 .9 10 958 1 , 090 8 . 2 6 . 5 3 . 6 13 418 186 5 54 

16 .6 6 . 3 936 696 7.2 6 . 0 I 

3.5 10 255 121 :! 1 , 030 

17 .s 4 . 6 607 373 6 . 3 14 3.5 s .o 145 59 2 . 7 1 , 460 

18 .s 3 . 3 371 150 6 . 0 174 3 . 3 6 . 6 77 36 2 . 2 964 

19 .6 2. 4 178 73 s.s . 576 3.3 6 . 0 .. 19 2 . 0 581 

20 .s 2 . 1 130 •• 8 . 2 , 300 3. 3 19 32 11 1 . 9 326 

21 . 4 l . B 197 32 6 . 8 100 .. s .o 123 7 . 7 1.9 123 

22 .. l . B 109 26 8 . 6 938 126 13 213 7.2 l . B 66 

23 .. 12 97 20 23 5 48 1 ,040 9 . 6 125 8 . 9 1.8 25.4 

24 .. 326 58 18 132 226 2,130 6.3 170 6 . 3 1 . 7 3 , 980 

25 .s 2 , 600 40 15 219 98 1 , 750 5 . 0 125 5 . 2 6 . 0 3 ,430 

26 . Q 2 ,460 61 13 116 59 8~2 . 4.4 149 12 5 . 6 2 , 080 

27 .s 1,2?0 Bl 

11 I 59 40 .. 79 5 . 2 130 •• 2 . 0 1 , 230 

28 . 9 598 lOB 10 37 30 270 43 123 32 1. 9 691 

29 192 318 67 8.6 21 332 83 60 12 2 . 2 426 

30 291 134 40 7 . 5 16 383 6 2 30 7 . 5 2 . 4 244 

31 259 31 6 . 8 13 25 4. 8 2 . 8 

llonth Second- itaxi JDUCI Winiau.m lie an Runo rr in 

toot-days aore-teet 

Oc tobe r ....... .... . ........... .... ........ 763 . 7 291 0.4 2 4 . 6 1,510 

Novembe r ................ . . . .... . .. . . . . . . . ... 8 , 887.3 2 ,600 l.B 296 17 , 630 

Dec ember .............. ................. 6 , 864 1 , 290 11 221 13 , 610 

-- ----- Calenda r year 1940 .... • •.•.. • .. . . • . ..... 20 , 126 . 8 2,600 . 2 55. 0 39,910 

------- January . . . .............. .• ..•..•..•.•...... 3 , 247 . 6 1 , 090 6 . 8 105 6 , 440 

February .... . ............•................. 1 , 367 . 1 219 6. 8 48.8 2 , 710 

Ma rch . ........ . ... .. .... . ................. . 7 , 486 . 9 2 , 300 6 . 0 242 14 , 850 

April ........... . • . .•.. . .......•.. ·· ....... 7 , 547 . :5 2 ,130 3 . 3 252 14 , 970 

llay . ... . . . ................................. :5 , 599 . 0 752 4 . 4 116 7 , 140 

June . ........... .•..........•. 12 , 232.1 3 , 000 5 . 0 408 24 , 260 

July . .... ·· ······ ····· ········· ······· 1 , 275.4 314 ... 41 . 1 2 , 530 

August . ..... . . 219 . 4 60 1.7 7.~8 435 

September ... .. . .... . ... ..... . . .... .... 17 , 331.1 3 , 980 2 . 5 578 34,380 

Wate r year 1940 - 41 .. . ... 70 , 820 . 9 3 , 980 .. 194 140 , 500 

Peak dhoharJte. - Nov. 25 (8 : 30 a.m. ) 3 , 220 e e o . - r t.; Mar . 20 (7 : 30 p . m. ) 2 , 950 sec .-rt.; Apr . 24 

(6 p . m. ) ,6 ~ ;~! )t~j~~=o~~r~ o p. m.) 4, 300 aeo .-rt. ; Sept . 17 (6 : 30p. m. ) 1 , 560 sec . - rt .; 

Sept . 24 
64 SAN JACINTO RIVER BASIN 

• Brays Bayou at Houston, Tex • 

Locati on.- Water-stage recorder, lat . 29042 ' 06", long . 95°24'06" , at Old Main Street 

Bridge in southwest s ec tion or Houston , Harris County, three-quarters or a mile up- stream rrom Harris Gully and about 15 miles upstr eam rrom surralo Bayou . Datum or gage is 3 .90 teet below mean sea l evel, datum or 1929 . 

Drainage area .- 98.2 square miles. 

Records available .- May 1936 t~ September 1941. 

Extremes.- Maximum discharge during year, 6,480 second- teet Sept . 24 (gage height, 47 .62 

f eet); mi nimum,. 0.3 second-teet Oct . 17. 1936 ~l: Maximum dis_ch;!.r!l!l.1 6, 800 second-teet July 12. 1939 (gage height, 48 . 02 teet); minimum, 0.1 second-t oo~; Oct . 10-13, 1937. MaXi mum" Stage Khown , S0. 4 raet, present site and datum, May 31, 1929 (discharge , 11, 095 second-teet, rrom current-mater measurement at lawndale Avenue Bridge about 

12 miles below gage; turnished by wm . E. White, assistant engineer, city or Houston) . 

Remrok~j~e~=i~~~s a~~~~ =~~~f~n:hose tor peri ods or no §age-heiglot record, >mich are poor. 

Disc harge . in second-teet . water year Oc tober 1940 to Septe•ber 1941 

Da Oct . Nov . Dec . Jan . F'eb . Mar . Apr . lley June July Aug . Sopl . 

l o~< 169 44 $1. 15 13 7 . 5 S47 3e 13 2.9 2 . e 

2 . 7 41 36 le 13e ll 8. 6 351 19 67 2 . e 7 . 2 

3 .7 12 20 12 72 10 5 . 2 352 10 16 2. 6 9 . 2 

4 • 7 4 • 13 9.0 35 9 .4 4 . 7 2 42 6 .4 6 . 1 5 . 0 19 

5 .7 702 9 . 7 .4 21 6 . 7 4 . 1 1,060 6 . 0 5 . 2 190 7.5 

6 .7 636 e . 7 . 0 159 17 4 . 0 l , 02o 4 . 6 4 . 4 195 4 .6 

7 .7 327 12 7.6 216 24 5 . 9 356 e65 4 . 0 62 e.2 

8 .5 105 9 . 6.9 9 4 19 3 . 6 140 756 3 . 6 64 20 

9 . 6 39 e . 6 . 5 51 13 3.5 72 241 3.6 170 15 

10 . 7 21 6 . 6 . 0 32 10 3.6 4l 9 4 3 . 6 58 17 

ll .7 44 19 5 . 3 25 6 . 7 3 . 2 27 1,340 23 27 31 

12 .6 41 103 5.2 23 e . l 4.0 le 2 , 070 439 22 25 

13 .4 18 4eO 4 . e 16 7 . 9 3 .4 12 831 447 ll 10 

14 • 7 9 • 511 524 13 ~ 3 .1 6 . 7 264 165 5 . 1 6 .4 

16 1.5 6 . 078 484 11 3 -1 7 .0 180 116 4 .6 136 

16 • 7 3 • 623 44S 9 . 5 7.9 2 . 9 5 . 5 169 55 3.6 3 , 970 

17 .5 2 - 2 40 226 S . ? 40 2 . 9 4 .7 69 30 3 . 5 1 , 940 

18 • 7 2 • 96 103 S . 5 7 46 2 . 6 4·. 7 4S le 3 . 2 69e 

19 . 5 l. 141 52 6.7 1,:no 3 . 0 4 . 2 29 28 2.9 370 

20 • 6 l • 444 33 10 3 , 130 2 . 6 3 . 6 109 79 2 . 6 163 

21 • 7 l • 337 23 6 . 7 1 , 340 426 3 . 6 120 25 5 .4 72 

22 .7 l. 125 lS 9 . 2 497 594 3 . 5 7 4 11 5 .6 37 

23 .7 23 55 15 46 212 1 , 560 3.2 . 111 7 . 9 2 -3 1,030 

24 . 7 694 31 13 192 104 1 , 000 3.1 57 5 . 9 2 .4 6 , 060 

25 .7 5,600 23 11 105 57 364 3 .1 35 4.4 7.4 :5,650 

26 1.2 2 ,810 69 11 52 42 139 3 . 0 60 4.4 4 . 6 3 , 000 

27 1.4 669 235 9.6 31 30 S4 3 . 0 158 5-9 17 1 ,830 

28 2.6 325 156 9 . 2 19 20 196 33 60 5 . 0 11 S75 

29 169 113 62 e . 7 l4 1 , 030 95 26 3. 5 7 .9 3 4e 

30 2 4 55 36 e . 3 10 1,200 263 13 3 . 1 6.2 15 4 

31 l3e 27 e .1 e . l 96 3 . 1 3 .4 

Month Second- Maximum Minimwa lloan Runoff in toot-days acre-teet 

October .... .. . . ........ ... ... 353 . 5 159 0.4 11.4 701 

Noveeber ..... ...... . ... . . ..... .......... . 13 , 099 . 5 5 , 600 l . S 437 25 , 9eo 

December ..... ······ ·· ···· ··· ···· 4 , 658 . 6 676 5.7 150 9,240 

--- --- - Calendar year 1940 ....... • . .• . . . . . . . . . . . 23,068. 7 5,600 . 4 53 . 2 45 , 760 

-- ----- January . ....... ..... ... 2 ,1 27 . 8 524 4. 6 se . 6 4 , 220 

February . . .. ... .... ........ 1 , 444 . 4 216 6 . 5 51 .6 2 , 860 

llarcb . ............ . . • . . ....... .. ... .. 7 .754 . 7 3 , 130 7.4 240 15 , 380 

Ap ril. . . ... ........ .... ... ... .. ... ......... e,763. a 1,560 2 . 5 225 13 ,420 

lley . ... . . .. .... . .• .. • .. . . . . . . . . . . . . . . . . ~ ... 5 ,096 . 2 1 ,060 3 . 0 164 10 , 110 

June ....... . .... . .. : ~ .. .. 7,927 . 0 2,0?0 4.6 264 16 ,720 

July .... .... . ....•..• . . . .. .... ....... 1 , 629.9 447 3.1 52. 6 3 , 230 

August .... .... . . 932 . 0 195 2.3 30.2 1 , 850 

September .... . . . . 24 , 523 . 9 6 , 060 2 . 6 617 48 , 6 40 

Water year 1940-41 . ... .. ... . .. 76 , 311. 4 6 , 060 . 4 209 151 ,400 

Peak. dlacherse.- Nov . 25 (8 ..... ) 6 , 000 aec. - tt. ; Mar. 20 (3 : 30 . .... ) 4 , 060 aec .-rt. ; Jun6 11 (8 p.m.) 3,040 aec. -r t. ; Sept. 16 (9 ..... ) 4,690 sec . -ft.; Sept. 24 ( 4 a.m.) 6 , 460 sec.-rt. . ; sept . 25 (4 ..... ) 3,340 sec . -rt . a Xo gage-he ight re·cord; discharge computed from. graph based on gage-height record t or adjacent 

daya, recorded range 1n etage , and weather recorda. 
BRAZOS RIVER BASIN 65 

Double Mountain Fork or Brazos River at Lubbock , Tex . 

Location .- Water- stage recorder and masonry control, lat. 33e>:35 ' 05" , long . 101049 '40' , in 

MacKenzie State Park in Lubbock, Lubbock County, 1.9 miles downstream from Yellowhouse Creek . Datum o r gage is 3,132. 7 reet above mean sea leve l, datum or ·l929 . 

Records available . - September 1939 to September 1941. 

Extremes. - Maximum discharge during year, 892 second- feet June 6 (gage height), 6 . 73 rest), rrom rating curve extended above 120 second- feet on basis or slope- area determination at gage height 6 . 72 ree t ; no now at times. l 939-4l: !11\Jcimum discharge , that or -P1ne 6 , 1941 ; no now at times. 

Remarks .- Records good except those a bov e ---roniiOd by small dams arrect low now. 120 second- feet, which are poor. Several pools 

Rating table, water 1ear 1940- 41 (gage height, in teet, and discharge ln aecond- reet) 

4. 17 0 4. 60 9. 5 5. 4 91.0 4.20 .15 4.7 14.2 s.e 174 •• ~0 .oo 4.e 20 . 2 6.2 5 

4.40 ~.oo s.o S8.1 6 . 6 720 4.50 5.9 5.2 62.5 

Discharge, in second-re8t . water year October 1940 t o Septeaber 1941 

Da Oct . Nov . Dac . Jan . Feb . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

16 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Month 

October . . . . .. •... . .... . . . . . .... . •.... . ... . . Nova•bar .... . . . .. . . ...... . . ... . .. . . . . . . . . . . Oeca•ber . ' ... ... . . . . . . .. . • . . . . . ... .. • ... .. 

Calendar year 1940 .. ... .. .. . . . . . ..... .. . . 

War . 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

... 0 

0 

0 

0 

0 

Secondroot-days 

0 

0 

0 

0 

Apr . llay 

0 e24 

17 

2. 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 o294 

469 

125 

5S3 

292 

57 

18 

5 . 

2. 

1. 

2. ~6 

Maxiau.a 

0 

0 

0 

0 

0 

0 

4. 4 0 5~ 

655 

81 .2 

. 3 

655 

June 

sa 

s:~ 

.:e 

655 

164 

~7 

20 

28 

57 

sa 

16 

6. 12 

9. 

1. 

0 

0 

0 

0 

0 

es. 

.! 

0 

0 

e2.( 

Min.la\111 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

July 

81 

so 

14 

~:~ 

~ 1:e 

i 1. 

. 1 

0 

0 

0 

e1 .( .. 

0 

0 

0 

0 

0 

0 

... 

0 

0 

0 

0 

0 

0 

Moan 

0 

0 

0 

Aug . Sept . 

0 0 0 0 0 .. ~ 

0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 

0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 

~.: 0 

0 0 

Runorr in aore- raet 

0 

0 

0 

0 

Peak d.iaobarso . - May 20 (2:30 p.a. ) ; 878 se o .-rt.; May 23 (10z30 a.m. ); 878 aoo ... r t.; Juno 6 

(

2 r·~d~~~=o s(!iir;; part) determined olum~trioally on basis or chango in contents 1n pool at gage . 
66 BRAZOS RIVER RASI N 

Donble Mountain Fork or Brazos Ri ver near Aspennont, Tex . 

Location.- Water-stage recorder, lat. 33000 •, long. 100011•, at bridge on U. s. Hi ghway 63, B mlles downstream !rom Mounta i n Creek and 10 miles south or Aspennont, Stonewall 

county . 

aina~e area .- 7, 979 squere mlles, or which about 6 ,470 s quare mqes i s probably noncon- trl utlng . 

Records avallable .- December 1923 to Septembe r 1934, June 1939 to September 1941. 

Average discharge .- 12 years (1924-34, 1939- 41) , 201 second-teet. 

tf~~n: n~ a~i~i~:~~e during year, 30 , 500 second-teet Ap~ . 15 (gage he i ght, 12. 43 

19~34, 1939- 41: Maximum discharge , 52, 000 second-teet Oct. 15 , 1926 (gage height, 18 . 14 reet, !rom !loodJr.ark) , by slope-area method; no n ow at time s . 

Remarks .- Record8 poor . Dally diecharga published only to show distribution or run- orr . ---ml diversi on above station. 

Discharge . in second-teet . water year October 1940 to September 1941 

Da Oct. Nov . Dec . Jan . Feb. Mar. Apr . Yay June Jul y Aug . Sept. 

1 0 . 1 0 . 3 69 0 .3 78 39 100 . 1 , 030 718 577 108 35 2 0 . 1 &31 .1 54 39 74 2 , 010 1 , 160 393 130 ~56 

3 0 .1 &14 .1 35 24 &49 17 ,1 00 8 46 521 39 1 , 120 4 0 .1 a 7 . 0 . 1 24 13 a35 4,680 287 1 , 120 29 322 5 0 . 1 a4.2 .1 14 7 . 0 a 23 1 ,850 195 385 232 1 , 600 

6 0 . 1 a:s.o .2 9 . 0 6 . 0 d B 1 , 090 1 #0 40 319 46 465 

7 0 . 2 a:s .o . 3 5 . 0 3 .4 a13 504 ::5 , 020 237 27 175 

8 0 . 6 a 2 .2 .3 4.2 2 . 2 9 . 0 318 832 181 20 90 

9 0 .. &1.4 .3 3. 0 ,g 7.0 258 396 88 16 828 

10 0 .1 al.O .1 1.8 .4 5 . 0 258 309 136 10 2 , 630 

11 0 .1 a.9 . 1 .a -~ 3 . 4 2 ,1 00 396 162 7. 0 492 12 0 0 a . e .1 . 6 .a 2 . 2 2 , 080 363 &46 3 . 8 323 13 0 . 1 a .7 .1 .4 .6 79 908 229 &34 1.8 4.80 14 0 . 1 a . 6 . 1 . 5 . 5 ~,400 379 1 , 34:0 &25 1 . 0 1 , 260 

15 0 .1 a . 5 . 1 ~ .4 , 500 a233 2 , 610 19 1 . 8 308 

1G 0 .1 ... .1 . 3 .6 2 ,060 ft.l46 7,200 . 14 386 241 17 0 .1 a.5 o.1 . 2 .. 365 119 932 11 262 303 18 0 . 1 ... e.l . 2 .7 225 9 2 408 26 155 353 19 0 . 1 . 4 o.l .s .7 188 74 &328 1 , 690 113 229 20 0 . 3 .4 •• 1 53 . 6 152 189 a300 631 614 192 

21 0 .1 . 3 •- 1 5.0 .7 119 3 , 090 &292 250 296 146 22 0 . 2 , J • . 1 .a 131 88 7 , 030 &292 117 181 113 23 0 .3 .3 •• 1 219 706 80 10 , 000 a314 44 303 78 24 0 97 .3 • . 1 125 1 , 120 69 16 ,600 391 23 254 5 4 25 0 1 ,990 .3 e .l 95 300 58 3 ,780 314 4, 3 40 230 32 

26 0 706 . 8 r . 1 139 2,350 53 1, 580' 245 936 122 23 

27 0 323 . 3 r . 1 88 1,360 53 4,100 162 419 2 , 250 22 28 . 1 222 .2 • • 1 76 371 69 1 , 340 186 229 510 20 29 .1 161 .1 e.1 233 96 566 130 gl49 104 18 30 .1 113 . 1 .4 181 4,700 1 , 060 106 g88 a31 146 31 .2 . 1 . 9 1~ 1 , 760 g58 147 

Wontb Second- Maximua Winillwt Yean Runorr in root-days acre-teet 

October . . . . . .... . . . .. .. ..... .... 0 . 6 0 . 2 0 . 02 1.2 November .. . . . ~,615 8 1 , 990 0 121 7 , 170 

December . ... . ..... . ······ · · ······ · · · · 144 .6 69 .1 4. 66 287 

------- Calendar year 1940-41 . ·· · ···· · · · · ······ 40,405 . 9 9 , 580 0 110 80 , 150 

- ------ January . ......... . . . . .. . ... . . ... 5.1 . 9 .1 . 16 10 

February ..... ...... .... . 1,032 . 6 219 . 2 36.9 2 , 050 

March .. ..... .. . . .... . ... ... ...... ....... 7 , 029 . 7 2 , 350 .. 227 13 , 940 

April. ............. ····• · · · · · ···· · ·· 35 ,711.< 20 , 500 2 . 2 1 ,190 70 , 830 

Jla1 . .............. .. . ..... . ... . ...... . ..... 86 ,324 17 ,100 74 2 , 786 171 , 200 J~e ..........•. .. . . ... .. . .. . . . . ... ...... . . 25 ,409 7 , 280 105 8 47 50,400 July .... ................ ..... . . . . . . ... .. . . . 13,268 4 ,340 11 428 26 , 320 August ... ..... . . ..... . . . . .. 6 , 630.4 2 , 250 1.0 214 13 , 150 September . .... ......... .. ... 12 ,487 2 , 630 18 416 24 ,770 

Water year 1940-41 . . . . . . 191 ,658.4 20 , 1100 0 525 ~80 ,1 00 

Peak <lh charse .- Apr. 15 (11 . .... ) 30 , 500 sec.-rt.; May 3 (2 p . m.) 20,400 aec .-tt . ; Nay 23 (5 p . m.) 

16,500 aec . tt. ; a.,. 24 (5 :30a.m.) 25 , 600 aec .-rt. a No gage-height record; d.lscha rge compu ted on bash or re corded r&Jl8e· in stage and weathe r re corda. e Stage-d1acharge relation 1ndet1n1te; discharge computed on bash or weather re corda and discharge measurement. 

r Fragmentary gage - height re cord; discharge computed from part l y estimated gage heights . g Computed from graph b&aed on gago re&dings. 
BRAZOS RIVER BASIN 67 

Brazos River at Seymour, Tex . 

I.JJcatlon.- Water-stage recorder, lat. 33°34', long. 99°16 ', at bridge on u. s. Highways 211 and 283 , three-quarters or a mile upstream !rom W!ch!ta Valley Railway bridge , and 

l m!le southwest or courthouse !n Seymour, Baylor County . Datum or gage Is 1,258.7 teet above mean sea level (Texas State Hi ghway bench mark) . 

Dra~g~~~~~~~ng l4 490 square miles, or wh!ch about 9,240 square m!les !s probably nonRecords available .- November 1923 to September 1941. 

Average discharge .- 17 years (1924-41) , 508 second-teet. 

~xtremes .- Maximum discharge during year, 62 ,200 second-teet May 4 \gage height , 12.45 teet); no !low Oct. 3 to Nov . 2 . 1923-41: Maximum discharge , 95 ,400 second-teet Oct. 16, 1926 (gage height, 15.16 teet , !rom !loodmarks), by slope-area method; no !low at times . Maximum Stege known , about 21.0 teet, sometime pr!or to 1916. 

Remarks .- Records poor. Dally discharge published only to show d!str!but!on o! runotr. ---wo-Grvers!ons above station. 

Discharge, in second-teet. water year October 194.0 t o Septembe r 1941 

Da Oct. Nov . Dec . Jan . Feb . Ma r. Apr. Yay June July Aug. Sept . 

1 2 . 8 0 2&2 13 13 169 ~41 7 ,830 2 ,130 1 , 330 153 578 2 .4 0 17~ 12 H 127 245 10 , 900 1 , 650 2 , 810 122 341 3 0 38 127 11 s.s S4 177 40 , 000 2 , 020 2 , 230 99 256 4 0 48 101 9 . 8 8 . 6 64 169 34,700 1 , 530 1,920 109 1 ,020 

5 0 32 80 11 12 63 124 8 , 250 1 ,100 1 , 980 127 971 

6 0 23 67 11 12 47 101 4,550 2 , 050 1 , 860 ll9 2 ,900 7 0 18 56 13 9 . S 41 8 4 2 , S70 ~.ooo 1 , 250 80 1 , 360 

8 0 14 48 12 8 . 2 37 67 1 , 350 5 , .(70 1 , 020 92 8 95 

9 0 15 42 9 . 8 6 . 7 33 56 934 3,040 907 109 3 , 270 

10 0 1~ ~9 7 .8 6 .1 29 47 846 3,140 630 60 4,180 

11 0 11 ~5 6 .4 4.9 26 40 2 , 120 4,230 1 , 110 42 3 ,610 

12 0 9 . 4 ~2 5·. 8 4 . 6 23 35 3,340 4, 260 1 , 270 30 2 ,000 13 0 6 .1 31 8 . 2 3 . 4 19 34 2 ,440 2 , 500 578 24 1 ,030 

14 0 4 . 6 29 4.6 2 . 8 19 1,020 1 , 300 1,7~ 300 23 557 

15 0 3 . 6 ~~ 3 . 6 2 . 4 18 21 , 900 858 u,ooo 190 21 1,300 

16 0 2.8 32 2 2 . 2 16 22 ,300 650 22 , 400 144 24 907 17 0 2.0 31 2 .6 1.4 H 3 , 900 458 9,710 122 86 599 18 0 1.0 28 2 . 0 1 .4 15 1,570 ~34 4,030 101 40 512 19 0 1.2 27 2.0 2 .3 l4 907 384 1,920 86 20 609 20 0 4.0 25 1.4 2 15 609 609 1,190 100 1~4 761 

21 0 2 . 8 24 1.6 3 . 6 l5 458 4,880 ' 961 927 314 809 22 0 4 . 6 23 1.4 4.0 18 392 10 , 800 650 442 8 43 475 23 0 19 22 1 . 4 30 29 3~4 10 , 000 620 288 509 300 24 0 21 20 1. 4 88 778 256 19 ,800 5~1 224 1,890 199 25 0 458 19 1.4 201 1 , 390 203 16,600 502 169 1 ,480 147 

26 0 4 , 6 40 23 1.0 285 1 ,4.30 173 6 ,510 1 ,040 2 , 020 716 119 27 0 2 , 200 22 1 .0 224 5 , 240 160 4,860 2 , 990 1 ,100 522 99 

28 0 1 ,0 40 19 1 .0 177 3 ,100 173 5 , 830 1 , 200 630 2 ,460 eo 29 0 650 16 1.0 1 ,150 214 2 , 980 620 450 1 ,710 73 

30 0 ~5 15 1.2 728 10 , 400 1,440 531 ~~4 948 71 31 0 13 4.0 442 912 199 777 

Month Second- Waximua ltini•ua lie an Runorr in root-days acre-teet 

October .. ....... , ...... ... .... .... ......... 2 2 .8 0 o .1o 6 .3 November . ......... ........... ...... .... ... 9 , 667 .1 4 , 640 0 322 19 ,170 

December. ...... ..... .. ....... .... ....... 1,514 252 1~ 48 . 8 3 , 000 

------- Calendar year 1940 ·· ···· ············ ···· 92 , 438.8 17 , 800 0 253 83,300 

January ............. . .... . .. ... . . . . ···· ···· 163 . 6 13 1.0 5 . 28 324 

February . .......... . ... . ... . ... . •..... ... . . 1 , 240 . 2 385 1.4 44 ~ 2 , 460 

March . .... . .............. . . .. . . . . . ... ... . . . 15 , 183 6 , 240 l4 490 30 ,120 

Apri l. . . . . . . .. ....... . .. . ..... . ..... . .. . .. . 66 ,489 22 , 300 34 2 , 216 31 , 900 

llay . . . . .............. . . . ... .. . . ... . . . . ... .. 209,1~ 40 , 000 334 6 ,746 ~14 800 June . ... . . . ............ . .. . . . . . . . . . . . . . . 98 ,645 22 , 400 502 3 , 288 95 ,700 

July . . . ......•..•.......• .. • . .... .. ....... . 26 , 721 2 , 810 85 862 53 ,000 

August . . .. . . . .... . .........• . ....... . . .. . .. 13 , 583 2,460 20 438 26 ,940 

September . .......... . .... . ....... ... ..... 30 , 078 4,180 7l 1 , 003 69 , 660 

Water year 1940- 41 · · · · · · · · ···· ··· · · ·· · · · 472 ,4 22 . 1 40 , 000 0 1 , 294 ~37 ,100 

Peak diaoba.rge .- Apr. 16 _l7 37 , 900 eee .-rt.; l1ay 4 \' a.m . ~uu see.-~lO. ; II~ 24 {10 p .m. ) 

35 , 400 seo . - rt.: June 16 (3 p . m. ) 27 ,800 see .-rt. Note .- No record Apr . 18-21 , l1ay 6 - 18 , l1ay 26 to June 6 , June 14, 18- 25 , Sept . 11- 16; dis charge 

computed from graph based on gage readi ngs . 
68 BRAZOS RIVER BASIN 

Brazos R1 ve r near South Bend, Tax . 

Location.- Water-stage recorder, lat. 33°01'30', long . 98°38 ' 50", at bridge on State 

Hi ghway 67, 0 .3 mile upstream from WIchita Falls & Southern Railroad bridge , 1.6 

miles downstream rrom Clear Fork or Brazos River, and 2.0 miles northeast or South 

Bend, Young Coun ty . Datum or gage Is 1, 003 .0 teet above mean sea l evel, datum or 

1929. 

Draln~e area .- 21 , 600 square miles, or which about 9, 240 s quare miles IS probably non- con rlbutlng. 

Records available.- September 1938 to September 1941. 

Extremes.- Maximum d lecharge during year, 87 ,400 second-teet May 4 (gage height, 27 .35 

teet); mlntmum, 0 .6 second-t oot Nov . :>. 

1938-41: Maximum discharge, that or l1aY 4, 1941; no now 11t t imes. Maximum stage known, 38 .. 2 teet In 1876, according to lntonnatlon furnished by Texas Highway Department and Corps of Eng ineers, U. S. Army. 

Remarks.- Records fair. No l arge diversion above station . now partly regulated by 

----seveFal reservoirs above Nugent on Clear Fork or Brazos River (see p. 84 ) , having a combined cao>acl ty or 106 , 000 acre-teet . 

Discharge . in second-teet . water year October 1940 to Septe11ber 1941 

Day Oct . Nov . Dec . Jan . Feb . Mar . Apr . llay June J uly Aug . Sept . 

1 21 6.6 664 76 3,:500 504 986 31,000 1 ,490 69~ 485 1,170 2 19 ~.7 426 192 5,140 ~ 689 12,000 1 ,930 2 , 940 687 2,160 3 18 2 .5 ~29 211 1,170 :l0'7 44-4 50,800 1 , 960 5 , 920 322 1 ,620 4 16 1 . 6 272 105 6~1 236 344 84 , 300 1 ,520 4 , 400 2'10 588 5 H .a 228 74 378 184 268 59,400 2,060 3 ,080 22'7 382 

6 12 .a 198 60 256 162 217 28,500 1,740 2,520 224 705 7 12 .a 166 53 155 126 180 21 ,400 3 , 2'70 2 , 300 2~ 4 2 ,580 8 10 1.6 139 45 118 105 139 12 ,600 5,790 1 ,610 231 1,620 9 9.5 30 121 41 106 94 124 2 , 600 5,630 1 , 220 258 6 , 840 10 8.o 41 110 38 96 79 116 3,640 33 ,000 1 , 310 242 6,240 

11 7.6 24 116 35 82 74 96 13,400 34,600 4,340 186 4,140 12 8.o 19 98 32 73 63 88 21 ,600 29 ,600 4,200 183 2 ,980 13 7.6 H 92 31 62 67 76 22 ,500 21 , 100 1 ,730 146 1 ,900 14 6.4 12 88 28 52 65 7~ 11,100 9,690 1,960 126 1 , 240 15 6 . 2 11 402 25 47 51 10,200 2,840 8,900 1,530 U9 978 I 

16 4.8 10 1,080 19 <l 45 32 ,400 1 , 540 22,100 960 393 1,870 17 4.4 10 260 17 ~9 41 20 ,600 970 29,1500 651 2'10 1,250 18 4.8 10 155 13 36 40 9 ,700 sao 11,900 512 164 1 , 020 19 3.7 8 . 5 113 11 36 36 7 ,510 5~4 7,900 428 lll 740 20 3 . 4 7.6 96 9 . 5 83 36 3,310 456 4:,540 343 94 6-44 

21 3.4 12 86 7.6 264 ~ 1,820 30,QOO 2,520 278 216 658 22 3.1 106 76 6 . 4 248 32 1 ,540 421600 2 ,020 242 593 748 23 2.6 1,630 70 4.8 248 255 2,140 45 , 800 ~so 9~2 6 , 9150 764 24 2.2 2,840 66 ~.7 1,640 248 1,110 42,700 1,650 888 5 , 740 667 25 2.2 7,040 62 2 .8 1,240 169 922 4.0,500 1 , 520 651 8,900 H1 

26 2.8 5,800 157 ~ 1,:590 1,590 744 17,500 915 496 8,1520 366 27 3.4 6,670 832 .7 1,380 2,680 617 6,940 1,020 1,:530 2,880 294 28 6.4 2 1860 550 . 8 796 5,350 986 5,110 2 ,450 1 ,4·40 4,890 238 29 9.5 1,420 225 .9 - 3,040 1,950 5 , 340 1,770 960 2,970 196 30 9.5 860 126 1.0 - 2,210 10,500 2 ,8150 1,:570 716 2 .32'0 168. 31 6.8 - 180 19 - 1,:540 - 2,0150 - 554 1,6!0 - Month Second- llaxiJOUa MiniaU& Jlean Runott in toot-day a acrtrteet 

oCtober ..... . . . ... . . .. .. . . . ... ... ... ........ 247 .2 21 2.2 7.97 490 Hoveaber . .. ...... . .. . . . .. . ....... . .. . ..... . 29,442.5 7,040 .8 981 58 ,4.00 l'leceaber ... . . . . . . . . . . . . . ... ..... .... .... . .. 7,47:5 1,080 62 241 --- - - - - ------ ------ --~4!~~ 

Calendar year 1940 . . . . . . . .. . ......... 343 ,946.7 31,400 0 940 682 ,!00 ------- ------ ------ ------ January . .. ... .. . . . ... .. . . . . . .... . . . . .... . .. 1 ,165 .5 211 .7 37.6 2,310 February . . .. . . . . ... .. . . .. . . .. . ... . . ... .. . .. 10 ,1oe 5 ,140 36 682 37,900 March . ... .... .. . . .. . . . ... . . . . . ..... .. . . . . . . 19,609 5,350 32 633 38 ,890 April. . . . . .. . ... . . . ..... . . . .. .. . . . ...... . . . 109,589 32,400 73 3 , 663 217 ,.oo May . .. . ... ... .. . .. ..... . .... . ...... .. ..... . 624,170 84 ,300 456 20 , 130 1,238,000 June . ... ... .. .. . . ...... . . . ... . . . . . .. • ... . .. 25~ ,775 34 , 500 915 8 , 492 605,300 July ... . . . . . . . . . . . . . . . . . . ~ . . . .. . ...... .. ... 51 ,13! 5,920 242 1 , 649 101 ,400 August ....... . . . . . .. ... . ..... . ... ..... ...... 60 ,101 8,900 94 1 , 616 . 99 ,370 Septe•ber . .. . ... .. .... ....... .. ·· · ··· · ····· «,467 6 , 240 158 1 ,482 88,200 

Water year 1940-41 .... ··············· 1,211,278.2 8 4,300 .7 3,319 2,402,000 

feak discharge.- Hay 4 (10 a . m.) 87,400 aec .-rt.; May 23 (2 a.m.) 60 , 900 eec.-tt. J June 10 (1 p . m. ) 

44 , 300 eec.-tt. June 17 (10 a.m.) 36 , 500 aeo.-rt. Note.- No record Dec . 8 - 14, 19- 25 , Deo. 30 to Jan. 1, Jan. 18-27, Peb. 7 - 28, tte.r. 1-22, Apr . 8-10 , Ju~-26, Sept. 16; d.i acha.rgo computed. !rom graph based on gage read.1nga • 
BRAZOS RIVER BABIN 69 

Possum Klngdom Reservoir near Graford , Tex . 

Location .- Mercury U-tube gage, lat. 32°52', long. 98°26 ', In powerhouse at dam on Brazos 

River, 2 . 6 miles upstream rrom Loving Creek and 11.3 miles s outhwest or Graford, Palo 

Pinto County . Prio r to June 23, statr gage at same sl te and datum. Datum or gage is at mean sea level (levels by Brazos Rl ver Conservation and Reclwra tlon District); add 0.10 root eleva Ions to reduce to elevations above mean sea level, datum or 1929 . 

Dralna~e area .- 22 , 550 square mlles , or which about 9 , 240 square miles is probably non- Con rlbutlng. 

Records avallable.- March 1941 to September 1941. 

Extremes .- Maximum contents observed during period, 746 , 000 acre-rest Sept . 21 (eleva- tion, 1 1

000 . 8 teet ); minimum after Cl lllng or reservoir late In May, 528 , 700 acre-teet June 3 lelevation, 988.4 rest). 

Remarks.- Records good . Reservoir is ronned by reinforced concrete dam or nat slab deck, --;;;assrve buttress type, with 9 rpot-we!r (modltled bear-trap) type gates, two bulkhead 

sections, and earthen dike sect ion . Dam completed and storage began Mar. 21 , 1941. 

Total capacity , 730 ,000 acre-t eet (elevation, 1 ,000 . 0 teet, top or closed root-weir 

gates) . Usable capacity , 706 , 000 acre-teet be tween elevation 911 . 5 teet (sill or powerhouse penstock) and 1 , 000.0 teet (top or closed root-weir gat es). Water below 

elevation 911 .5 t eet can be withdrawn through high pressure outlet down to elevation 875 teet . Figures given here i n represent total contenta. Wa ter used tor power development . 

Cooggration.- Records ot dally elevation and capacity table tumlshed by Brazos River onservatlon and Reclamation Distri ct . 

Capacity table ( e lnatlon, t.n teet, and contents, 1.n acre-root ) 

( Prepared by .Bra&oe RiTer Conael""fat1on a.nd Reclamation D1str'1ot trca a\ll"'1'eye and. u.pa ot the d1 atrict) 

870 0 goo 12,000 gao 208,000 875 7g() Ql"() 22,000 980 408 , 000 

880 1,800 920 38 , 600 1 , 000 730 , 000 

886 3 , lgo 930 64,600 1,006 830 , 000 ago 5 , 050 Q40 00 , 1500 8Q5 7 , 800 950 147 , 000 

J1ontbly eleTat1on aDd. oon·tente, tor period. rtar. 21 to Sept. :K), 1941 

Date 

!lor. 81 ........ .. ... l.pr. so llq 31 ····· .. .. ........ ······.· . .1\mo 30 ......... .... .1\JlT Sl ............ ts· 31 ............ pt.30 ............ n>e poT1od ........ 

Kl.OT&tiQD 

(toot )t 

Ql8 .4 

ll63 . 0 Qg().Q 

98V . 5 9Q6.S 

1,000.,0 

1,000 . 0 

Oontente 

(ooro- root) 

35 , 860 232 ,000 553 , 000 

M5 , 400 646,800 

7~0 000 

730 ,000 

Change ln con~nt a 

dur 1.ng month ( acre- teet) 

+.196 , 100 

t"321 ,ooo - 7 , 600 +101,400 

+83,200 

0 

+894 , 100 

t lD.eT&tion at aldnigbt J1ar . 21 to Aug . :SO; aTerage ot twioe-d.&ily ele"Yat1ona at 1 •·•• and 1 P•• • Aug. 31 to Sept . SQ. 
70 BRAZOS RIVER BABIN 

Brazos River near Pal o Pinto, Tex . 

Location .- Wa ter-stage recorder, lat. 32°51 '45", l ong. 98°18' 10", at bridge on Palo 

Pl nto-Gra!ord highway, 300 teet downstream !rom Dark Valley Creek and 6t miles north or Palo Pinto, Palo Pinto County. Datum or gage Is 831.23 t ee t above mean sea level , datum or 1929. 

Draln~e area .- 22 , 760 square mil es , or whi ch a bout 9,240 s quare miles Is probabl y non- con rlbutlng. 

Records availabl e.- November 1933 t o September 1941. January 1924 to November 1933 , at sl te near fUneral Wells . 

Extremes.- Maximum discharge during year, 38 , 500 second-tee t (regul ated) May 26 (gage height, 14 .53 teet); minimum, 3.4 second-teet Nov. 5 . 1933- 41: Maximum discharge, 64,900 second-tee t May 20 , 1935 (gage belght, 15 .60 

teet, !rom !loodmarks), !rom rating curve extended above 32, 000 second-teet ; no now at times . Maximum stage known was reached by nood or 1876, a ccording to data or Corps or E:nglneers, u. S. Army, and was several teet higher than any subsequent !lood . A stage or about 24.0 teet was reached In June 1930, according to ln!o rmatlon rurnlshed by local residents. 

RemarkS.- Records good except those !or periods or no gage-height record, which are !air. 

---n:ow-regulated by Possum Kingdom Reservoir on Brazos River (see preceding page) and 

several smaller reservoirs above Nugent on Clear Fork or Brazos River, having a combined capac! ty or 836,000 acre-teet. No large diversions above station . 

Discharge. in second-teet. water year October 1940 to September 1~1 

D~ Oct . Nov. Dec. Jan . Feb . War . Apr . llay June July Aug. Sept . 

1 201 8 ,6 1,'700 402 1,750 2 , 320 16 206 5,980 a.l,lOO 226 633 

2 169 e .o 1,040 308 6,e30 1,800 1e 532 4,680 &1,200 191 2 ,610 

3 e3 6.e 771 272 6,490 1,420 17 1,720 3,370 al , 500 155 al,l40 

4 61 6 . 2 570 249 3 , 210 1,060 17 2 , 010 3,370 1 ,000 13S al ,030 

5 53 4.4 376 267 2,380 S48 17 22 , 900 2 , 380 2 ,100 130 a984 

6 43 4.1 350 284 1,170 712 17 34,100 1 , 320 eJ.,600 134 950 

7 3S 4.4 332 232 796 566 24 29 ,800 1 , 440 eJ.,OOO 136 eoo 

8 36 5 .6 3H 196 570 493 26 25 ,100 2,260 a630 13e 864 

9 32 1e 284 16e 450 443 25 17,500 3,210 a480 196 6 ,720 

10 31 29 243 H7 3e 9 429 21 9 , 340 10 ,600 o420 176 3,5110 

11 30 31 255 134 370 408 1e 9 , 020 31,000 a330 168 2 ,360 

12 27 26 251 130 357 402 H .10 ,000 33,300 a268 159 4,180 

13 25 23 255 120 344 402 13 14 , 000 31,700 206 155 7 ,860 

14 25 29 261 120 332 3e2 13 17,300 27,300 172 151 1,160 

15 20 42 2,410 116 272 376 21 12,800 20 ,400 163 147 864 

16 19 42 2,290 112 186 370 20 9,680 18 ,500 159 H2 916 

17 18 37 1,800 102 186 363 197 7,280 22,600 H2 142 1,o:IO 

18 1e 32 1,440 92 168 350 378 5 ,740 2~,900 1~4 H2 1 ,080 

19 17 29 636 86 172 332 120 3,990 17,700 127 142 1,060 

20 15 30 3~9 eo 290 201 66 2,770 12,600 127 142 992 

21 13 61 314 74 255 116 32 4,,580 9,320 127 H2 1107 

22 13 319 2110 71 243 61 24 17,800 5,620 125 225 822 

23 11 377 251 6e 302 74 ~2 33,300 5,040 120 4~6 788 

24 10 2 , 0JO 232 61 501 61 31 37,300 4,810 142 5,120 7'71 25 9 . e 7,960 206 61 644 42 24 36,900 4,040 1e1 1 , 560 7~7 

26 10 9,520 326 65 1,720 107 1e 36,500 2 ,910 134 415 636 

27 10 6,760 1 ,450 53 2 ,500 e9 20 26 ,800 2,700 130 M4 546 

28 9 . 2 6,510 2 , 320 48 2 ,700 48 83 19 , 000 1,840 130 ~14 4e6 

29 8 . o 3 , 840 2 , 000 198 - 31 116 13 , 600 &1,500 151 255 443 

30 8 . 6 2 ,500 1 , 130 296 - 24 285 10 ,400 &1,250 211 221 362 

31 9 . 2 - 619 423 - 19 - 7 , 640 - 226 249 -

Month Second- Maximum IUnimum lloan Runott in toot-days acre-teet 

October . .. . .. • ........... . . . . . . ...... . ..... 1 , 061.8 201 8.o ~· ~ 2 , 110 November .. . . . .......... . . .. ... .. . . .... . . . . 40,293.1 9 , 520 4.1 1,343 79,920 Deceaber . . . ............. ,. ······ ··· ······· · 25 ,123 2,410 206 810 40 ,8!0 ------- ------ ------ -- - --- ------ Calendar year 1940 .. .. ........... ....... 465 ,386.1 - 0 1,2« 903,200 ------- ------ ----- - ------ -- - --- January . .... . ............. ·············· ··· 5,025 425 48 162 .9,970 February .. ... .. .. .. ... . . .. ...... ........... 36 , 577 6,830 16e 1 , 378 78,520 March ... ....... ...... ... . ··············· ... 14,369 2 ,320 19 464 28,600 April. . .. .. ·· ···· ···· ... .... ............ .. 1 , 725 3?8 13 57,5 3 ,420 

Jlay . . . ... . . . ... .. . .... . . . . . . . ... . ....... .. 479 , 508 37 ,300 206 15,470 951,100 June . . . .. . . . . . . . . . . . . . . . . . .. . ........... ... 316 , 140 33 , 300 1 , 260 10,540 827,100 

July . . . . . ... . . . . •. . • . .. .. ····· ·········· ... 15 , 433 2 ,100 120 498 30,610 August . . . . . . . . . . . ... ........... ......... .. 12 , 393 5 ,120 130 400 24 ,580 

Septecber .. . . .. . .... . . . ... .. . ... ..... . .. . .. 47,450 7,860 382 1,582 04,120 

Water year 1940-"1 .. . ... . . . .. ··········· 997 , 097 .9 37 , 300 4 . 1 2 ,7:52 1 , 978 ,000 

Peak d!aebarge.- P'lay 6 (9 a .m.) 34 , 500 aeo.-tt.; Me.y26 (4 a.m. ) 38 , 500 aeo.-ft.J Ju_ne 12 (6 a.m.) 33 ,700 aeo.-tt. a Ho gage-he ight record; discharge computed on baa1a ot roc orda ot released f1 DI'I' from Poss\IID K.i.ng- d.om Rese rvoir ond recorda tor station near Qlen Rose, 
BRAZOS Rl VER BASIN 71 

Brazos R1 ver near Glen Rose, Tex. 

Location.- Water-stage recorder, lat. 32°15'40", long . 97°41 ' 50• , a quarter or a mile 

upstream rrom bridge on u. s. Highway 67, 2 miles upstream rrom Paluxy Creek , and 4 

miles no rtheast or Glen Rose, Some rvell County. Datum or gage Is 566.66 reet above mean sea level, datum or 1929 . 

Dralo::fe area .- 24 , 840 s quare miles, or which about 9 , 240 square miles Is probably non- con rlbut!ng. 

Reco rds avai lable .- Octobe r 1923 to September 1941 . 

Average discharge.- 18 years, 1, 698 second-teet. 

Extremes.- Maximum d ischarge during year, 44,200 second-teet Nov. 25 (gage height, 14 .90 

f ee t); minimum not determined. 

1923-41: Maximum discharge, 97 , 600 second-teet May 18, 1935 (gage height, 23.68 r eet) , rrom rating curve extended above 68,000 second-teet; no now at times. 

Maximum stage known, about 30 t eet, May 8 or 9, 1922, according to Inronnation rumlehed by local r esidents. 

Remarks .- Records good . F'low regulated by Possum Kingdom Reservoir and several smeller 

----reservoirs (seep. 69 ). Many smell diversions tor muni c ipal and oil t!eld uses upstream . 

Discharge . in second- teet , water year October 1940 to September 1941 

Do.) Oct . Nov . Dec . J an . Feb . Wa r . Ap r . Way June July Aug . Sept . 

1 325 h 72 3,950 2,160 ~.:50 3 , 410 "451 806 g9 , 0 20 1,700 187 519 

2 288 h250 3 ,000 1 , 580 27 , 800 3,200 379 699 gl.2 , 000 1 , 140 170 411 3 242 h355 2,230 1 , 240 9,020 3 ,000 333 761 g/ , 980 970 165 348 4 217 h2ll 1 , 720 1,100 7 , 780 2 , 640 295 3 , 930 g5 ,720 958 199 295 5 199 hl41 1,380 840 5 , 060 2 , 030 265 15,700 g4 ,760 2 ,130 223 1 ,720 

6 187 hl15 1 , 140 709 3 , 620 1 , 800 235 21 ,100 g4 , 520 2 , 570 288 1 , 820 7 166 h96 922 620 2 , 810 1 , 610 318 31,100 g5 ,370 1 , 740 48 4 1 J' 670 8 141 68 709 572 2,160 1 , 300 476 29 , 000 g2 ,590 1 ,700 379 1 , 510 9 111 133 5n 562 1 ,730 1 , 100 325 24 , 100 gl. , 670 1 , 030 223 1 , 050 10 99 136 536 662 1 , 420 946 333 17 ,300 g4 , ·UO 627 235 828 

11 h99 9 2 764 493 1,190 840 310 10 , 700 g27 , 500 582 199 3 , 8 20 12 h96 221 828 461 995 750 235 12 ,500 33 , 200 1,840 272 4,4!50 

13 h92 318 1 , 040 427 828 689 217 u , 8oo ~:5 200 4,520 723 2 , 450 14 b92 199 886 427 730 648 217 12,900 000 2 , 540 1 , 090 ~so 

1~ h85 122 4 , 4<1.0 U1 648 638 22~ 17 ,900 32 , 300 1,250 427 7 , 240 

16 h85 88 13 , 400 395 600 638 2ll 1:5,000 26 ,400 709 265 3,480 

17 h81 7 2 4, 210 356 563 691 695 10 ,400 gl.8 ,600 510 508 1 , 580 

18 h76 58 2,810 318 519 562 1,4~0 8 , 500 g23 , 300 435 620 995 

19 h66 52 2 ,460 295 606 67 2 4, 240 7,460 g23,100 681 310 898 

20 h62 50 2~0 280 1 ,190 653 1 , 8 40 6,440 g16 , 600 639 205 898 

21 h55 62 1 , 790 258 817 636 1,~90 5,720 gll , 800 658 265 946 

22 h47 240 1 , 280 250 750 627 1 ,100 6 ,680 gl.O ,400 844 4: ,;040 934 

23 h44 1 , 190 958 236 2 ,040 668 886 18 ,600 g/ , 980 427 5,990 886 

24 h36 3,830 750 217 3 , 200 730 689 31 ,900 g6 , 940 310 9 ,720 851 

25 h28 23 ,400 629 206 520 501 668 35 , 700 g6 , 440 258 11 , 000 761 

26 h2l 34 ,400 1 , 170 193 2 , 720 662 636 ~6 700 g6 , 360 229 8 , :590 709 

27 h26 11,:500 2 , 520 187 2 , 900 910 699 34 , 900 g5 ,000 2J.1 3,940 668 

28 h28 7,140 4, 280 176 3 , 200 922 691 25 , 300 g4 , 880 193 2 ,180 648 

29 h26 6 , 9 40 3 , 170 170 - 817 689 g16 , 800 g3 , 950 187 1 , 260 620 

30 h 21 6 , 360 2 ,540 165 - 806 8 40 g13 , 000 g2 , l80 205 806 536 

31 b23 - 2 ,4 60 187 - 562 - g10 , 700 - 199 668 -

Month Second- Yaximua Minimum Wean Runo t t i n root~a.ys aore-t'eet 

October ... ......... ... ···· ········ ····· .... 3 , 161 326 21 102 6 , 270 

November ................ . . ........•.. ...... 96,501 34,400 50 3,217 191 , 400 

Deoember ... . ............... . ...•..•..... .. . 70 , '7 93 1:5 ,400 536 2,284 140 , 400 

-- ----- ------ ------ -- ---- -- ---- Calendar year 1940 .......... • Y' '' •' •' .. 631 , 255 :57,000 3.0 1,725 1 , 252,000 

------- ------ ------ ------ -- - --- January ..... . . . ...... .. . . .. ···· • · · · · · · · · · .. 16 ,0 40 2 ,160 166 517 31 , 810 

February . . . . ........ ..... ..... ...... .. ... .. 97 , 6:56 2'7 , 800 506 3,.87 193 , 700 

llaroh .. .. ..... .... ...... ... ... ... .... .... 34 , 958 3 , 410 501 1,128 60 , 340 

April .. ... . .. . . • . • . .• . .•• . .. • • · •.········· · 21 , 116 4 , 240 2J.1 704 41 , 880 

MQ ........ . .. . ..... • . . . .. . . . . . •... . . . . . ... 490,996 35 ,700 699 15 ,8 40 973 , 900 

June .. ....... ... .. ... .. . . . . .. .. . . .... . .. ... 391 , 370 34,000 1 , 670 050 776 ~ 

July . .. ..........•. . • . .. .... .. ...... . ... . . . 31 , 992 4,520 187 1,032 83 , 460 

August . . .. . . . . . ...... . ... ... ... ... .... .. . .. 55 , 931 11 , 000 166 1 , 804 110 , 900 

September ... . . ... ... . ... .. . . . . . . . . . . . . . . . .. 46,871 7,240 295 1 , 562 92 , 970 

Water year 1940- 41 ........ .... ...... .. .. 1 , 357 , 366 35,700 21 3 ,719 2 , 692,000 

Peak c11 eoh&rge .- Nov . 25 (9 p .m. ) 44, 200 :~eo.-ft ; Feb . 2 (8 a .m. ) 33 , 600 seo. - tt.; l1•y 7 (11 a..m . ) 

31 , 900 a e o .-ft. J l1•y 26 (10 p . m. ) 36 , 600 sec .-rt. ; June 14 ( 4. p.m . ) 37,500 sec .-tt. g Computed t'rom graph baaed on gage readings. b 00&putec1 t'rOlll gage reacUnga at Rainbow 1 , 890 teet downtJtree.m, f'urn1sboc1 by U. S. Weatber BJ.reau . 
BRAZOS Rl VER BASIN 

Brazos R1 ver near Whl tney, Tex. 

Location.- Wire-weight gage, lat . 31°54'10', long . 97°23 '05" , on bridge on State Highway 22, 1.8 miles upstream !rom Towash Creek and 5 mllss southwest or Whl tney , Hill county. 

Datum of gage Is 432 .06 t eet above mean sea level , datum o r 1929 (Brazos Rive r Conser- vation and Reclamation District bench mark) . 

Draln:\fe area.- 26 ,090 squar e miles, or which about 9, 240 square miles Is probably non- con rl butlng . 

Re cords avallable .- October 1938 to Septembe r 1941. 

EXt r emes.- Maximum discharge observed duri ng yea r, 50 , 300 second'-!eet May 5 (gage height , 23.93 teet); minimum observed , 42 second-feet Nov . 3 . . 1938-41: Maximum discharge observed , that or May 5 , 1941; minimum observed , 2 .0 second-feet Oct . 31, Nov. 1, 1939 . Maximum stage known, about 46 teet May 9 , 1922, accord ing to Information furnished 

by local residents. 

Remarks.- Records ta!r. Gage read twice dally, oftener duri ng high water. Flow regu- --ratea by Poss\.UJI Klngdom Reservoir and several smaller r ese rvol rs (see p . 69 ) . Many 

small diversions above station for municipal and all field uses . 

Discharge in s econd-teet wate r year October 1940 to Septeaber 1941 

Da.! Oct . Nov . Dec. Jan . Feb . War . Apr . llay June July Au&. Sept . 

1 444 66 5,520 3 , 080 8,300 3 , 600 1 , 200 1 ,740 8, 250 2 , 350 ';ffl 868 

2 34 6 48 4,670 2 ,650 32, eoo 3 , 760 1,000 1 , 590 11 , 400 2 , 080 298 672 

3 304 .. 3,840 2,240 16 ,900 3 , 680 868 2 , 850 11 , 600 1 , 690 282 598 

4 282 206 3,140 1 , 960 9 , 500 3 ,600 834 2 , 240 5 , 300 1 , 910 277 5~0 

5 243 319 2 , 350 l, eoo 9,000 3 , 140 757 33 , 300 3 ,380 1 ,910 267 628 

6 243 228 1,490 1 , 590 4,670 3 ,840 702 18, 200 3,160 2 ,410 398 1 , 740 

7 206 182 l,MO 1 ,340 3 , 540 3 ,4 70 1,290 30 , 600 5 , 960 2 ,710 424 1 , 960 

8 181 134 1 , 240 1,240 2, 950 2,770 986 3 2,100 4,080 2, 100 5-<5 1,960 

9 166 11>< 1 , 060 1 ,110 2,530 2 ,350 884 27,300 2, 590 2,080 482 1,690 

10 140 140 948 1 , 000 2,080 2,130 740 21 , 700 2 , 000 1 , 1><0 353 1,340 

11 132 219 1,590 996 1,740 1,800 695 12 , 000 17,100 I 7 , 440 304 1 ,150 

12 114 162 2,650 920 1 , 5-<0 1,690 73 2 11,400 29 ,500 2 , 710 29 ~ 4 ,680 

13 107 146 2 , 530 920 1,390 1,5-<0 658 13,100 ~2.800 4,160 1 , 690 3 ,400 

14 gg 228 2 ,470 1, 200 1 , 340 1 ,4 QO 630 12,000 315 , 400 2 ,Q50 1 , 740 2 ,4 70 

15 eo 282 6 , 570 1 ,110 1,290 1,440 64 2 17,400 35 , 000 2 , 470 1 , 540 4, 770 

16 eo 219 14, 000 816 1,200 1 , 340 2,580 14,600 ~3,600 2,130 868 4, 760 

17 78 162 6,220 748 1 ,140 1 , 290 1, 540 11 ,100 19, 700 1 , 390 489 2 , 950 

18 68 112 3, 400 650 1, 040 1 , 240 3,530 8,000 20, 000 996 424 1 , 740 

19 68 107 2,890 598 996 1,200 4, 580 7 , 060 23 , 800 eo8 489 910 

20 66 96 2,710 508 3,3eo 1 , 200 3,760 6 , 180 21,000 1 , 910 363 757 

21 66 83 2, 590 346 2 , 770 1 ,160 2 , 350 6 , 400 12, 200 1,490 248 868 22 63 96 2,300 304 2,240 1 , 100 2,350 6 , 180 9 , 500 929 6 , 880 1 , 120 

23 61 11 , 500 1,910 437 5 , 510 2 ,620 5 ,110 10, 500 7 , 280 1,290 5,830 1 , 120 24 56 17 , -400 1 , 640 430 10,000 3 , 000 3,020 26 , 600 6 , 120 725 10 ,600 1,080 25 5 6 21,900 1,490 252 3 , 840 1 , 240 2, 020 33, 200 5 , 030 552 4 , 580 1, 070 

26 52 40 , 100 1,800 211 3,920 1 , 660 1 , 860 35 , 400 4 , 490 748 11, 000 967 'Z7 50 18,500 2,650 252 3 ,210 2 , 130 2, 020 35 , 400 4 , 240 650 5 ,300 89~ 

28 50 8 ,750 4,24 0 169 3,470 1 , 860 2 ,240 31,100 6 , 300 277 3 , 470 825 28 48 5 ,960 4,240 215 - 1 ,690 1,910 20 , 400 4,550 185 2,410 1 , 020 30 50 6,620 3,020 224 - 1 ,54 0 1 , 690 13 , 700 2,890 158 1 , 440 893 31 5 6 - 3 , 020 298 - 1,390 - 10,600 - 194 1 , 080 -

Wonth Second- Max i•ua IUniaWI lie an Runo ff in 

toot-days ac re-tee t 

Oc tobe r . .. . ...... .... .. .. ... ... ..• .. •...... 4 , 0§5 444 48 151 8 , 040 Noveabe r .. . .. . ........ . . .o . ••••• .. •• . . , ...•• 134,143 4 0, 100 H 4 , 471 266, 100 December ........ . . .. .. .... ......... .. ...... 99,528 14,000 948 3,211 197,400 - ------ ------ ------ ------ - ------ Calendar year 1940 ...•..•..•.. ... .•..... 725,849 . 2 40 '100 9 . 6 1 , 983 1 ,4 40 , 000 - --- - -- ------ ------ --- --- ------ January .... .. . . ...... .. . ... ...... . ..... .... 29,614 3,080 169 955 58,740 February ... ..... .. .... . . , ... · ·· · · ···· ····· · 142, 286 32, 800 996 5 , 082 282,200 March ... . ................... .. , . , . .. •..... . 66, 040 3 , 840 1,100 2 ,130 131 , 000 Ap ril ... . ......•.... . .•..•.. , ..•... . . , ..... . 53,183 5 , 110 535 1,773 105 , 500 llay ...... . ........•... .. • . .• ..• ..•..•..... . 613 , 940 35 , 400 1 , 590 16,580 1,019,000 June ... . ......... . . ..•.. .. .. .....•.. •. .... . 3 87,220 35, 400 2 , 000 12,910 768, 000 July . .. . ....... , ... .. . .. . ... . .......... . . . . 55 , 022 7 ,440 158 1,775 109 ,100 August . .. ... .. ..... . ... ····· ··········· ··· · 64 , 4 51 11,000 248 2, 079 127 1800 Septembe r . ...... .. ... ... .. .. . . ... . ......... 49 , 329 4, 770 530 1 , 544 97 , 840 

Wat er year 1940- 41 ...... ·············· ·· 1,59 8,811 40, 100 44 4, 3eo 3 , 171 ,000 

Peak dhcharge . - Xov . 26 (12m. ) 4 2,000 aec . - rt., Peb . 2 (7 p. a .) 34, 300 aec. -.tt.; Kay 5 (9 a.m. l 50,300 aec. -tt. ; !1a. y 8 (1 a.m . ) 33 , 200 ae e.-rt. ; l'tay 27 ( 11 a .m. ) 3 5 , 800 ae c.-rt.; June 14 (5 p.m. 37,300 aec. -rt.; (all 'peaka obae rved) . 
BRAZOS RIVER BASIN 73 

Brazos RIver at Waco , Tex . 

Location.- Wate!"-stage recorder, lat. 31 °33'40", long. 97°07 ' 45" , at Washington Avenue Br l age In Waco , McLennan County, 2t m!les downstream !rom Bosque River . Datwn or gage 1 s 357 . 1 teet above mean sea level, datum or 1929 . 

Dralna~e area .- 28,500 square m!les, ot which about 9,240 square -m!les Is probably non- con rl buting . 

Records available. - September 1898 to September 1941 (January 1912 to September 1914 , monthly re co fds only , In Water-Supply Paper 850) . 

Average discharge.- 43 years, 2 , 694 second-teet . 

ExtremAs .- Maximum dis charge during year, 68, 800 second-teet May 5 (gage height, 29.24 feet); minimum, 51 second-teet Oct. 27 , 28 (regulated) . 1898-1941 : Maximum discharge, 246,000 second-teet Sept . 27, 1936 (gage height, 40.90 t eet, levee on left bank was overtopped and broken by tlood)j_ m!rUmum discharge tor periods or dally record, 1898-1911, 1914-41, no now Aug . 20, <:1, 1918 and pro- bably for several days In August 1923 . A stage o! 39 . 7 f eet was reached Dec. 3, 1913, when levee on lett bank was broken 

by flood, accord i ng to I nformation furnished by U. S. Weather Bureau. 

~ 

Remarks .- Records fair. Many small diversions above station do not appreciably affect except during low stages. Flow partly regulated by Possum Kingdom Reservoir on Brazos Rl ver (see p . 69) and Lake Waco , on the Bosque R! ver, near Waco (capac! ty, 39 , 000 acre- teet). 

Cooperation.- U. S. Weather Bureau furnished gage heights for' pe riods or faulty recorder 

operati on . U. S . Sell Conservation Service furnished results of thirteen discharge measurements . 

Di s cha rge , i n second-feet wa t er year Oc tobe r 1940 to September 1941 

Da 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Oc t . 

?< ~ 

638 

502 

410 

365 

316 

277 

231 

217 

204 

1811 

162 

145 

132 

119 

112 

105 

98 

91 

g80 

gll2 

g82 

g8? 

g85 

g?O 

g64 g5l 

g5l 

g?4 

m 

Nov . 

147 

gl40 

gl22 

g114 g96 

2?6 

261 

214 

228 

220 

186 

195 

186 

150 

124 

234 198 

159 

132 

114 

129 

140 24 , 400 31, 200 

38, 300 

51,900 

28 , 000 U , 400 

S, 350 8,320 

Dec . 

6,590 

4, 310 3 , 960 2 , 720 

2 , 300 

3 , 350 1,?40 

gl , 520 

gl , 440 2 , 2?0 

13 , 200 1 6, 200 6 , 040 6 ,040 

13 , 400 

24 , 600 13 , 900 6 , 850 

6, 030 

3,820 

4 , 980 

3 , 380 

2 , 620 

3 , 540 2 , 230 

4,160 1 5 , 900 9,660 

6,950 

5 ,100 5 , 800 

Month 

Jan . 

5 , 800 

5 , 590 2 , 8110 2,400 

4,160 

2,300 

2 , 580 1,760 

2 , 440 

2, 090 

1,280 

1 ,390 

2 , 950 6 , 270 2, 260 

2, 480 2 , 040 

1, 160 1 , 1?0 1 , 970 

1, 8'70 1 , 680 

,4 ~0 

813 764 

722 

766 1 , 480 

598 

592 

1,200 

Feb . 

13,500 

48,100 

28, <00 13, 700 12 , 100 

8,840 

7 , 250 

6 , 440 4 , 410 

3,220 

3 , 760 3,240 

2 , 120 2, 780 2 , 430 

1 ,4 40 1, 420 

2 , 160 

1 , 350 2,550 

6,170 

3,580 

11 , 200 

27 , 800 10 , 900 

7 , 520 6 , 440 

5 , 130 

Oc t obe r ., ... . ...... . ..... , .........•....... Noveeber ............... , . .. .. .... . ... . ..... . 

Dee eaber ...... . ............ ... •.......•.... 

Calenda r year 1941 ..............•..•.. 

Wa r . 

5 , 950 

5 , 810 •. 310 5 , 060 

~50 

17 , 900 13 , 400 7 , 180 4 , 380 3, 470 

5,030 

3 , 560 3 , 250 

130 

2 , 880 

2 , 110 

2,920 

3 , 860 2 , 120 

3,580 

2 , 490 

1 , 690 

1,880 

4, 900 

2 . 9?0 

3,390 

9 , 500 

3 , 950 

2 , 450 3 , 090 

:5,000 

Second- taot-daya 

Apr . 

2,790 

1 , 800 2 , 370 1 , 360 

2, 100 

1,540 

1,950 

2,600 

2,190 

1 , :520 

1,120 

2 , 150 

1 , 030 1,710 

873 

15,400 

11 , 000 20 , 700 

11 , 200 9 , 410 

5 , 850 4, 460 

12, 800 15 , 600 

5 , 500 

4 ,340 2 , 8110 7 , 960 

4 , 620 

4 ,4 00 

Yay 

3,510 

2,560 

11 , 900 8 ,2?0 48 , 900 

49,500 

33,600 

34 , 300 31 , 900 'Z7 , 000 

17 , 300 18,200 

18 , 000 12 , 500 

21,200 

20 , 100 16,200 

10 , BOO 9 ,370 

7 , 620 

8 , 410 12,800 

8 , 4 20 

26 , 600 31 , 600 

33,600 

34 , ?00 32, 600 

25 , 000 19 , 300 !5 , 100 

6 , 0?4 

207 , 635 204 , 570 

?43 

51 , 900 24 , 600 

1 , 010 , 088 51 , 900 

January . . ................................... 66 , 965 6 , 2?0 

48 , 100 1?,900 

20 , ?00 

49 , 500 37, ?00 16,500 

19, 000 

February ................................... 24 7, 950 March ............•....•..•.......•. . ,. ... . . 143 , 560 Apri l .... ... ........ .. .. .. ..... . ........... 162 , 9:53 Ma.,y . ....... . . . ,.,., ..... .. , ....... , • . . . . . . . . . 651 , ?60 J une ............... . .................. . .... 445,140 J ul y ....... ... ... . ... . ... . .... ... ..... .. .. 104 , 068 August ......................... ,......... . . 101,512 September............ . ..... . ... . ... . ....... 52 , 331 6,640 

June 

11,700 

11,300 

22,400 

a, 270 

5,800 

4 , 570 5 , 430 

7 ' 230 3 , ?00 

8 , 830 

18, 300 26 , 500 26 , 500 27 , 400 :n,ooo 

37.700 

28, 000 20 , 700 

23 , 900 22 , 200 

16 , 400 13 , 400 12 ,4 00 

8 ,3 20 

8 , 530 

6 , 610 6 , 880 8 , 390 

6 , 950 5 , 830 

51 

96 1 , 440 

31 

592 1 , 350 1 , 690 

873 

2,560 

3 , 700 

454 

370 

592 

J uly 

3,820 

3,000 

2,560 

2, 400 

3 , 130 

2,350 

:5 , 340 2,500 

2 , 300 2 ,4 50 

16, 500 11 , 500 

8 , 060 6 , 690 5 , 660 

4 , 930 2,560 

1 , 820 2 , 400 

3,180 

2 , 670 2 , 450 1 , 360 

1, 560 

l , 240 

9?6 

634 

580 

526 

4?8 

454 

Yean 

Aug . 

?29 

610 

400 

~?0 

508 

666 

568 

673 1, 820 

911 

502 

380 1 , 200 3 , 410 3 ,440 

1,600 

1 , 070 1 , 340 

580 

811 0 

685 8 , 160 19, 000 

12 , 800 8, 390 

12, 100 6, 610 3 , 940 4 , 700 

2 , 020 1 , 4. 40 

Sept . 

1 , 240 1,070 946 

820 

?22 

592 1,530 

1 , 8?0 1 ,820 1 , 690 

1,360 

1,690 

5 , 330 2, 890 2 , 550 

6 , 640 3 , 600 2 , 400 

1 , 600 

1, 280 

1 , 160 1 , 1 60 1 , 200 

1 , 160 1 , 1 20 

1 , 1 20 1 , 020 

953 

918 8110 

Runott in acr&-tee t 

196 6 , 921 

6 , 599 

12 , 050 

411 , BOO 

405 , 800 

2 , 160 132, 800 8 , 855 491 , 800 4 , 631 284 , ? 00 5 , 431 323 , 200 

21,020 1 , 293 , 000 H , 840 882, 900 3,357 206 , 400 3 , 275 201 , 300 

1, 744 103 , 800 

Water year 1940- 41 . ........ , .. . . . .. , ... . 

r-----~-- 2,394 , 498 51 , 900 -r----~--77~~~ 51 6 , 560 4 , 750 , 000 ~ 

1 Peale aeha~e. No v. 23 (7 p.m.) ~QQ .. aee.-rt. ; Nov. 25 (2: 30a.m. ) 45 , 200 aec .- rt. , No v. 26 (2 p. m.) 56 , ae c . - rt.; Feb. 2 (10 :30 p . m. ) 52 . '\00 ~eo.-rt ; May 5 (10:~ p .m. ) 68 , 800 ec. rt .; 

JW\e 16 (3 p.m. ) 42 , 400 aoo .- r t . g Compu ted tram graph baaed on gage r e ad1nae turnl.ehed by U. s . \1e& t her Bureau. 
74 BRAZOS Rl VER BAST N 

Brazos RIver near Marlin, Tex. 

Location.- Wire-weight gage, lat . 31°17 ' 20" , long . 96°58 ' 10" , on bri dge on State Highway 139, I mile upstream !rom Deer Cr eek and 4 .5 miles southwest or Marlin, Falls County. 

Datum or gage Is 312.15 teet above mean sea level , datum or 1929 . 

Draln~e area.- 29,150 square miles, or which about 9 ,240 square miles Is probably non- con rtouttng. • 

Records available.- October 1938 to September 1941 . 

Extremes.- Maximum discharge during year, 73,100 second-teet May 6 (gage height 25 .82 

f ee t, !rom graph based on gage readings); mlnlmum, 90 second-feet (r egulatedl Oct. 25, 

26 . 

1938-41: Maximum discharge, t hat or May 6 , 1941; minimum not de termined . Maximum stage known, 35.8 ee~ Dec . 3 or 4 , l913 , .accordl ng to Inf ormati on furnished 

by local residents . Flood or Sept . 28, 1936 , reached a stage or 35.2 t eet . 

Remarks .- Records fair. Gage read twice dally, oftene r during hl gh water. Flow partl y ---reguia ted by Possum Klngdom Reservoir on Brazos Rlver (see p. 69 ) and Lake Waco on the Bosque River, nea r Waco (capac ity, 39, 000 acre-teet) . Many small d iversions above gage whlch do not appreciably affect !low except ..turlng low stages. 

Discharge. i n sec ond-teet water year October 194.0 to September 1941 

a~ Oct . Nov . Dec . Jan . Feb . War. Ap r. ~ June J uly Aug. Sept. 

1 960 554 5 ,740 5 , 540 6 , 420 o 3 , 040 5 , 140 11,300 4 , 470 525 1 , 710 

2 718 405 4, 740 5 , 9 40 52, 800 6 , 160 2,4 00 3,680 9,060 3,360 768 1 , 320 

3 . 546 360 3 , 930 4,840 <1:16,200 5 , 540 3,280 6,690 20 , 900 2 , 880 694 1,080 

4 4 21 322 3 , 360 4. 740 19,600 4 , 840 2 , 400 11, 800 13 , 000 2 , 560 460 894 

5 355 ~6 2,480 4, 940 13 , 300 5 ,94 0 2,800 34 , 200 6 , 600 2 , 720 44 3 71 8 

6 304 156 1, 710 3 ,440 8,280 28,600 1,900 68 , 200 5 ,140 3,040 57< 625 

7 292 149 1,430 3 ,44 0 8, 020 d20, 000 2 , 720 39 , 900 6,160 2,480 734 567 

8 274 288 1 , 600 2, 720 5 , 740 11 , 500 2,960 34,000 ?,?60 3,360 670 1 , 720 

9 270 588 1, 470 2 ,7 20 4 , 650 5 , 740 2 , 880 33,600 4,940 2, 640 718 2 , 260 

10 255 610 1, 540 2 , 720 3,120 3 , 760 2,190 27,900 7,760 2, 720 837 2, 050 

11 232 483 7,950 2 , 480 3 , 200 5 , 000 1 , 540 20 , 200 19 , 400 7 , 680 1 , 160 1,870 

12 213 380 22 , 900 2 , 260 3 , 0 40 4,420 1,350 14,000 27 . 500 22, 1300 640 1 , 430 

13 216 292 10 ,4 00 3 , 850 2 , 190 3, 44 0 1, 400 16,100 30,300 14, 000 465 2 , 950 

14 236 226 5 , 740 ol6 , 300 1 , 800 3 ,120 1,870 1 8 , 300 31, 900 1 0 , 10 0 • 5 3 ,84,0 

1~ 226 178 9 ,610 7,160 2,190 2 ,540 1 , 390 13,600 38,700 8 , 540 4, 800 3 ,360 

16 216 168 29 ,100 4,020 2,480 2 , 120 8 , 100 19, 000 47 , 100 7 , 760 3,540 &4 , 890 

17 189 283 23,100 3 ,440 1,300 2 , 780 16 , 100 15 , 700 44 , 600 4 , 510 1 , 950 &3 , 930 

18 172 243 9 , 710 1 , 910 1,770 6,090 13,900 11 , :500 25,500 2 , 880 1,520 &3 , 600 

19 156 213 6 , 3 80 1,4:50 1 , 500 3 .540 17 , 200 11 , 000 24,000 2 , 330 1, 500 a 2, 540 

20 136 dl72 5 , 340 1, 350 1, 070 2 , 640 7,040 13 , 000 24 , 800 2,330 813 a2 , 050 

2 1 129 dl46 4, 560 1 , 270 4 ,440 3,410 7,040 10,400 17 , 100 4,520 1,040 1,660 

22 127 dl56 4 , 750 2 , 080 3 , 940 2,120 4 , 380 13 , 600 12 , 400 3,360 3 , 670 1 , 450 

23 111 19 , 500 3 , 280 1,810 5 ,320 2 , 050 11 , 000 10, 400 11 , 800 2 , 700 24 , 200 1 , 360 

24 102 57,500 2 , 560 1,380 34 ,700 3 , 190 17 , 900 1 9 ,4 00 8 , 980 1 , 950 16,700 1,390 

25 90 58, 300 2, 560 dl, l20 25 , 800 4,110 9 , 020 29 , 900 7 , 760 1 , 980 1 2 , 600 1 , 4 20 

26 90 61 , 300 3 , 200 840 9 , 880 2 ,880 4 , 650 33, 200 6 , 310 1 , 460 9 , 240 1 , 330 

27 107 4 8 , 000 9,750 702 8 , 280 7 , 240 4 , 380 34 , 900 6, 820 1 , 1 80 10 , 500 1 , 320 

28 132 19,800 11 , 900 1 , 220 6,600 5,740 4, 980 34,000 5 , 940 849 5 , 040 1, 200 

29 129 10 , 200 6, 600 1 , 360 - 3 , 440 8,020 26,700 7 , 280 686 4, 650 1 , 000 

30 154 7,280 6,160 786 - 2 , 960 5 ,140 19, 000 6 , 600 63 2 4 , 560 980 

31 502 - 6, 160 885 - 2 , 880 - 10,700 - 567 2 , 330 -

Month Se cond- Maximum Minimum Yean Runoff in root-days ac re-f ee t 

October .... ... . ..... ... .. . . . . .. ...... . . . .. 8, 060 960 90 260 15 , 990 

November .... . . . .. . ... .. . . . . ... ... . 288, 4 88 61 ,300 146 9 , 616 572 , 200 

December . ... . ...... .. ···· · · · · . . . . ··· · ·•···· 219 , 710 29 , 100 1 , 430 7,087 435 , 800 

-- -- -- ------ ------ ------ ------ Calendar year 1940 .. ... .. ... . . . . . .. . .•.. 1,14 5 , 712 61,300 - 3,130 2 , 273 , 000 

------- --- -- - ------ ------ ------ Janua ry ..... ...... .... . . . . . . ... .. . . .. .... .. 98 , 693 16,300 702 3,184 195 , 800 

Feb ruary .......... . . .. .... .. . . . . . . . . . . . . . . 277 , 710 52 , 800 1 , 070 9,918 550 , BOO 

March .. ............. ...... . . . ... . ······ .. . . 173 ,260 28 ,600 2, 050 5 , 589 343 , 700 

April. . . ........... .. ...... .. .. .......... 172 .. 770 17,900 1 , 350 5 , 759 342, 700 

Way . ..... . ........... ...... ... .... ......... 656, 510 68, 200 3,680 21,180 1,302 ,000 

J une . ..... ............ ····· ··· ······ ······· 497 ,410 47,100 4, 940 16,580 986 , 600 

J uly .. ... ······ ····· .. ....... . .... ....... 133 , 04 4 22 , 800 567 4. 292 263 , 900 

August ... . .. . ... . . . .. ... ..... . . .. . .. . . ..... 117 , 966 24 . 200 443 3 , 805 234 , 000 

September . ·········· ... . . ...... . . ... . .. 56 , 604 4, 880 567 1 , 887 112, 300 

Water year 1940 - 41 ... ..... .... . ........ 2, 700 , 225 68,200 90 7 , 398 5 ,356 , 000 

a No gag e -heigh t r e c ord, discha r ge compu ted on basis of r ecorda for nearby ataUona. c Backwater trom De e r Cre ek; di ac harge c omputed from g raph ba8ed on estimated backwater effect. d Doubt!'u1 gage-height rocord; discharge computed on basis ot rocords f or nearby sta tions. 
BRAZOS RIVER BASI N 75 

Brazos Ri ver near Br yan, Tex . 

Loca ti on .- Water-stage recorde r, lat. 30°37 ', long. 96°29' , 2 . 4 mile s downstream ! r om Little Brazos Ri ve r and 9 miles southwest or Bryan, Brazos County . Datum or gage Is 192 .3 teet above mean sea level, datum or 1929 . 

aln e a rea .- 38, 430 square miles, or which about 9 , 240 s quare miles Is probably non- con ri buti ng . 

Records ava i lable. - September 1925 t o September 1941 . February 1918 to September 1925 a t site near College Station, 7t mi les downstream . 

Average discharge.- 22 years (1918-25, 1926-41} , 6 , 036 second- teet . 

Extr emes .- Maximum discharge during year, 150 , 000 second-teet Nov. 27 (gage height, 42 .50 r eet); mi nimum , 244 second-teet Oct . 26 . 1925-41 : Max imum gage height observed , 46 . 1 teet, present site and datum May 20 1930 (discharge not determined}; minimum discharge , 87 second-teet Aug . 24, i934. ' Maximum stage known, abou t 54 t ee t, present da um, In Decembe r 1913 . 

Remarks .- Records good . Many small dl versi ons above gage do not appreciably atrect !low except during low stages. 

Disc harge in sec ond-tee t water year Oc tober 1940 to Septembe r i941 

Da Oct . Nov . Dec . J an. Feb . Wa r . Apr. llay J une July Aug. Sepl . 

1 1 ,660 938 c22 ,400 ~ 3 , 860 16 , 500 9 , 9 00 22, 200 1 9 ,300 10 , 800 2 , 460 6 , 080 

2 1 , 350 3 , 240 el9 , 200 26 , 200 1 5 , 1 00 9 , 040 1 5 , 900 1 5 , 600 8 , 600 2,~30 5 , 900 

3 1,100 3 , 84 0 16, 200 1 2 , 5g~ 65 , 700 15 ,100 8 , 000 14 , 000 16 , 300 7 ,600 2 , 200 5 , 220 

4 950 1 , 850 13 , 700 74, 900 1 3 , 500 S, 820 22, 500 24 , 500 7 , 000 2 ,4 00 4, 74 0 

5 787 1, 180 10 , 800 ~oo 48 , 600 13 , 000 8 , 600 34, 200 19 , 800 6 , 800 2,140 4 , 740 

6 687 807 7 , 800 9 , 700 3 2, 200 1 2 , 000 6 ,620 65 , 300 17 , 000 7, 400 1, 960 4 . 270 

7 64 5 585 9,1?0 9 , 040 22, 200 33 , 800 6 , 260 84,200 13 , 200 7 , 600 1 , 960 3 , 330 

8 633 495 8 , 000 8 , 000 19 , 000 37 , 600 7 , 200 6? , 800 17, 500 6 , 620 2 , 200 2 , 720 

9 573 460 5 , 900 7 , 600 16 , 700 29 , 900 8 , 600 56, 600 16 , 100 6 , 800 2 , <00 2 , 850 

10 506 59], 4 , 900 7, 200 15 , 600 23 , 800 7 , 200 51 , 400 12 , 200 6 , 260 2 , 140 3 , 5<0 

11 460 693 7 , 930 7 ,400 14, 000 14., 200 5 , 720 4 2 , 700 25 , 300 6,620 2 , 850 3 , 400 

12 440 717 28, 400 6 , 44 0 13 , 500 12, 000 4, 7 40 33 , 700 36 , 200 24 , 300 2 , 920 3 , 190 

13 4 20 705 4 5 , 000 5 , 720 11 , 000 9 , 920 4 , 900 31 , 900 40 ,4 00 36 , 600 2 ,400 2 , 920 

14 410 6 27 40 , 600 25 , 900 8 , 600 8 , 820 5 , 060 32,100 39 , 100 32, 400 1 , 780 3 , 740 

15 405 573 39 , 300 46 , 600 7 , 000 8 , 200 4, 580 27 , 400 39 , 800 26 , 200 1 , 960 5, 220 

16 378 522 50 , 600 4 5 , 100 7 , 400 7 , 000 4, 900 26 , 500 47 , 400 23 , 100 !; ;~ 4 , 270 

17 355 485 65 , 300 28, 700 6 , 800 7 , 200 12 ,4 00 25 , 900 59 , 400 21 , 300 5 , 280 

18 331 H O 58 , 600 15, 000 6 , 080 8 , 970 14, 200 22 , 200 54, 800 15 , 000 3 , 820 6 , 260 

19 315 4 20 36 , 600 10 , 500 6 , 220 1 8 , 200 20 , 700 19 , 500 37 , 900 8 , 550 ~~ 4 , 900 

20 303 480 22 , 000 8, 000 7 ,4 00 2< , 800 15 , 500 27 , 100 34, 300 5 , 720 3 , 070 

21 283 4 60 15 , 600 7 , 000 6 , 080 21 , 400 11 , 000 30, 200 30 , 600 6 , 080 2 , 080 3 , 260 

22 272 991 13 , 700 6 , 800 8 , 870 14 , 300 10, 600 25 , 900 24 , 000 6 , 080 1 , 960 2 , 720 

23 261 10, 800 1 2 , 500 6 , 440 9 , 480 9 , 920 9 , 040 26 , 200 21 , 000 5 , 220 5 , 70( 2 , 400 

24 254 50 ,4 00 10 ,600 a6 , 080 21 , 000 8 , 820 1 9 , 500 22, 100 19, 500 "· 740 ~~ ~~ 2 , 330 

25 2<7 99 , 100 10 , 600 a5 , 720 40 , 000 9 , 700 28 , 100 33 , 900 14, 500 3 , 970 2, 200 

26 2<7 136 , 000 9 , 920 a 5 , 3 80 3 2,100 9 , 700 22, 700 39 , 100 13 , 500 3 , 970 11 ,4 0( 2, 200 

27 25< ~~000 1 2 , 300 aS, ~~ 22 , 800 8 ,4 00 15 , 200 39, 800 12, 500 3 , 5<0 12 r~ 2 ,14 0 

28 25< , 000 23 , 600 19 , 300 13 , 700 16, 200 40 , 900 13 , 200 3 , 260 9, 7 2, 0 20 

29 291 c55 , 600 21 , 800 :: ~a - 14, 000 22, 500 39 , 100 14 , 000 2 , 980 gg~ 1,900 

30 307 c30 , 700 17 , 900 &3, 970 - 11 , 800 25 , 000 31, 500 12 , 500 850 1 , 780 

Jl 361 - 14 , 200 3,680 - 10 ,4 00 - 24 1200 - 2, 590 7 , 20C -

lllon th Se cond- Maxi au. Miniaua lie an Ruoott in 

t oot-day s ac re-teet 

Oc tober ..... .. . .. . . ... . .... . . . . . . . . . . . . . . . 15 , 759 1, 660 2<7 508 31, 260 

November ....... ... ····· ·· ·· · · ··· ···· . .... 654 , 699 14 7 , 000 420 21 , 820 1 , 299,000 

Decembe r . . . . . . . . . . . . . . . . . ·•········· · • · · ·· · 675,120 65 , 300 4 , 900 21 , 780 1,339 , 000 

------ ------ ------ ------ ------ Cal endar year 1940 .. . . . . . . . . . . . . . ... . ... 2, 484 , 826 14 7, 000 - 6 , 789 4 , 929 , 000 

------- ----·- - ----- ------ ------ January . .... ··························· ···· 358, 580 46 , 600 3 , 680 11 , 570 711 ,200 

Feb ruary .... ....... .. .............. ........ 573 , 390 74, 900 3 , 860 20 , 480 1 , 137 , 000 

Ma rch . ...... ........... ........ ........ .... 462,550 37 , 600 7 , 200 14 , 9 20 917 , 500 

April ....... ............................... 353 , 600 28 ,100 4, 580 11 , 790 701,400 

Way .. .....•. ·················•············· 1 , 075 , 800 84 , 200 l4 , 000 34 , 700 2 , 134, 000 

J une ... ... ... .... ... ..... .................. 761 , 4QO 59 , 400 12 , 200 25 , 380 1 , 510 , 000 

Ju l y ..... .......... ················· .... 320 , 550 3 6, 600 2, 590 10 , 340 635 , 800 

Augus t . ... :: ········ ............... .... .. . 153 , 520 20 , 400 1,7 80 ~ , 95 2 304 , 500 

Sep t ember . ........... .... ··········· ···· ·· · 109 , 490 6, 260 1, 780 3 , 650 217 , 200 

Wa t e r year 1940- 41 ···· · ·· ...... . ...... . . 5,514 ,4 58 147 , 000 2<7 15 , 110 ~w . 94 0 , 000 

a "o gage-ne lgn t recor a ; Olecharge compute on baSTa ~own range ln a age and recor • or 

a t a tlona near l'lar11n and Hempstead . 

me~a~~~~=r m~mr~~~ ~n~l~'i'o=n~ir::~t di~~Q~8e a:~~~~~~~e{:Om backwater curve baaed on discharge 

No re corde r record A. pr . 28 t o Ha y 5 , l1a y 10- 30 , Jan. 4- 16 , June 20 to July 25 ;: dis charge 

computed from graph based on once or twice- dally gage read 1nga or outside gage . 
?6 BRAZOS RIVER BASIN 

Brazos River near Hempstead, Tex. 

Locatlon .-Wire-we tght gage , lat . 30°07 '25", long. 96°11 ' 00" , on bridge on U.S. Highway 290, 4, 500 teet upstream !rom Texae & New Orleans Railroad bridge , 6.5 miles north- west or Hempstead , Waller county, and 8 miles upstream !rom Caney Creek. Datum or gage Is 118 . 07 reet above mean sea level, datum or 1929 . Pri or to Nov. 1 , chain 

gage 4,500 reet downstream and at datum 5 .97 ree t lower. 

Draln~e area.- 42 , 670 square miles , or whi ch about 9 , 240 s quare miles Is probably non- con ributl ng . 

Records available.- October 1938 to September 1941. U. S. Wea the r Bureau has collect ed 

gage-height r ecords In thiS vi c ini ty at lnte rml t tent periods s ince 1903. 

Extremes .- Maximum discharge observed duri ng year, 116 , 000 second-teet Nov. 30 (gage height, 44.04 tee t) ; minimum obse rved, 455 second-teet Oct . 28. 1938-41: Maximum d ischarge , t hat or Nov. 30 , 1940; minimum, 254 second-teet 

Nov. 8 , 1939 . Maximum stage known, 56 . 1 !!let (present site and datum) Dec . 9, 1913, according to data rurnlshed by Texas & New Orleans Rai l road engineers, secured at their bridge 4,500 rest downstream. 

Remarks.- Records !air. Gage read twice dally, oftene r during high water. Many small 

----arverslons above gage whi ch do not appreciably a !!ect !low except during low s tages . 

Discharge , in second-teet, water year October 1940 to September 1941 

Da~ 

l 

2 

3 

4 

5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

Z7 

28 

29 

30 

31 

Oct. 

2,280 

1,?80 

1,560 

1,290 

1,140 

1,060 

990 

890 

868 

845 

BOO 

755 

688 

665 

642 

642 

620 

1500 

580 

560 

Nov . Dec . 

1 , 180 102 , 000 1 ,:no 77,200 

a3,400 50,800 

a 2, 000 36,600 

al,200 29,000 

a4, 000 24.,500 

a3,000 22,100 &3,100 22,600 

a2,500 19,100 a 2 ,100 16 , 000 

al,?OO 16,800 al , 400 37 , 900 

1,310 56,400 1,280 58, 900 1,150 60 , 500 

975 63, 800 rno 64 , 5oo 810 68,100 750 62,-tOO 

698 49,100 

540 662 36, 400 

28 , 800 25 ,400 22 , 600 19,500 522 698 522 1 , 690 522 59,700 488 108,000 

470 100,000 

505 98,900 455 103,000 540 111 , 000 505 116 , 000 

1 , 060 -

19,300 

21 , 900 25,1500 

32, 500 

2S,BOO 

24 , 100 

Month 

J an . 

20 , 200 19,100 

18 , 900 1 8 , 300 16 , 200 

14 , 600 14, 200 12, 800 

11, 200 9 , 960 

8,700 

8 , 060 6 , 620 11,400 34,200 

43,600 

<1 ,400 

29 , 500 19,500 

16 , 400 

15,400 

14,200 

13,600 

12,800 

11, 800 

10 , 600 

8,880 

7 , 580 6,620 

5 , 320 4 , 840 

Feb . 

4,400 

15 . 000 34 , 700 

51. 400 53 , 500 

44 , 000 

33 , 800 27 ,4 00 24 . 500 22 , 800 

21,700 20,600 

20 , 000 17, 000 

l4 , 000 

12,200 

10, 800 9,240 

7,740 

7,740 

9,240 

8,060 

12,400 

19,100 

31,200 

38,000 

29,900 

25 ,900 

October . . . . . .... . . . . . .. . ... . ... . .. . ....... . November ...... ... . . .... . ....... . •..•.. ... .. 

December . ..... . .... ....... . •..•... . . • . • .. .. 

War . 

22,300 

20 , 000 

19 , 300 20 , 000 

18, 900 

20,400 

33 ,800 4~,100 

42,600 

36 , 800 

29 , ?00 22 ~00 

18 , 900 16,600 

14 , 600 

13 ,400 

1 2 , 400 12,400 

1?,500 

34,300 

36,800 

32,200 

25,900 

20 , 800 17,900 

1?,600 

17,400 

16 , 000 

20 , 000 19,300 

18 , 600 

Apr . 

14 , 400 l3 ,400 13 , 000 

11,000 

12,400 

12, 000 

9 , 980 8 , 540 9,060 

11,400 

9,790 

7, 740 

6,460 

6 , 020 6 , 020 

5 , 320 5,320 

12,100 

14,800 

20,300 

14,000 

lS , OOO 19 , 000 23,400 

26 , 100 

2? ,400 

22,100 

18, 500 20,000 

24 , 800 

llay 

26, 100 24,100 

20 , 400 20,000 

29,200 

4.0,500 

54 ,100 

63 , 100 58,600 

53,000 

47,900 

41, 200 35, 700 34 , 500 SS,200 

30,200 

30,200 

28,600 

25 , 400 25,200 

June 

24, 500 21 , 200 19,300 

20,600 

24,300 

21 , 000 16,000 

115,400 

19,800 

18,500 

28,200 

37,100 

42,100 

44 , 000 43,300 

46,000 

50 , 100 52,200 

48, 100 40,400 

29,9oo ~e .80o 

28,300 3<&,300 

Z7 , 20o :n , 3oo 26,700 29 , 000 27 , 000 26,100 

34,~0 21 , 500 

36 , 400 19,500 

36,800 18, 100 

37 ' 600 17,600 34. , 800 17 , 000 30 , 400 -

Secondtoot-days Maximum Minimum 

25 , 384. 735 ,183 

1 , 223 , 200 

2 , 280 116 , 000 

102 , 000 

4 55 

662 

16,000 

Cale.ndar year 1940 .... . .... .. . .. . .. . . .. . 3,479,296 116,000 299 

January . ............. . ... ... . . ··•·· • · · • · · · · February .. ... ._ .................. . ..• . ..... March . .. .. .. . ...•.... . . ... . ................ April .. . .... . •..........•..•.. • ....... , .. . lley . ...................... . ...... ... ...... . June . ..... ...• . ...... . ..•..........• . .•.. 

July ...... ...•..•.......•. . •.......• . .•.... August ...... . ...... . .......•.......•..•... . 

Septomber ................ . ............ . 

Water year 1940-•H . ................... . 

486,500 

626 , 320 709, 600 418,950 1 , 071 , 400 888,400 4~,010 

153,580 

106 , 330 

6,9 28, 857 

43 , 600 

53,500 

43 , 100 2? ,400 63 , 100 52,200 

42, 400 18, 500 7 , 100 

116,000 

4,840 

• ,400 12,400 

5 ,:520 

20,400 

16,400 570 

2 , 260 

2 , 020 

455 

July 

15,000 

13 , 000 

10, 200 8, 540 7, 580 

7 ,4.20 

7,900 

8,220 

6, 780 6 , 300 

15 , 460 

8 , 160 31,200 

41 , 600 42 , 400 

41,900 

42 , 100 

S8, 500 30,400 

22,100 

16 , 600 13,000 

11, 400 9 , 600 8,390 

8, 4.60 

5 ,740 

5 , 080 4,400 

4,020 

3 , 570 

Aug . 

S, 2SO 3,070 

2,84.0 

2,770 

2,?00 

2,?70 

2 ,640 

2,?70 

2,640 

2 , 770 

2, 700 

2, 990 2 ,990 

2 , 840 2 ,440 

2,260 

2 ,990 

4 , 840 4,020 

3,150 

2,700 

2,500 

2 , 260 

4,420 

18, 500 

16,000 

11, 600 12,800 

9 , 980 6,940 

~,4.60 

Sept . 

7 , 100 

5,880 

5 , 450 

5 ,080 

.. ,400 

4 , 300 

4,110 

3,480 

2, 910 2, 570 

2,840 

2,910 

1!,840 

2 ,640 

2 , 570 

4,030 

3,QSO 

3,840 

5,740 

4 , 500 

3,860 

3,070 

2, 570 2 , 570 2, 570 

2,320 

2,200 

2 , 14:0 2,080 

2 , 020 

Runo tt in 

acre-teet 

8lQ 

24,510 

39,460 

50,350 

1,458,000 

2, 426 , 000 

9,506 6 , 901 , 000 

15,690 

22, 370 

22,890 

13 , 960 34 , 560 29,610 

15,610 

4. , 954 

~.544 

965 , 000 1,242, 000 1 , 407 , 000 

831 , 000 2, 125 , 000 1,762,000 

960 , 000 :504 , 600 

210,900 

18, 980 13, 740,000 

a No gage - height recordj dlacharge computed on baaia or recorda tor atationa near Bryan and. SLn 

Pelipe. 
BRAZOS RIVER BASIN 77 

Brazos Rlver near San F'ellpe , Tex. 

Location .- Water-stage r eco rder, lat. 29°46 ' 20" , long . 96°02'10" , on bridge on Stat e Highway 73, 200 teet downstream !rom Mlssourl-Kansas-Texas Railroad bridge, 1.3 r.dles 

downstream rrom Irons creek, and 5.0 mlles southeast or San F'ellpe posto!!lce, Austin 

County . Datum or gage ls 79 .32 tee t above mean sea level, datum or 1929 . 

Dra inage grea .- 43, 690 square miles, or whlclt about 9, 240 square mlles Is probably non- contri utlng . 

Records available .- December 1938 to September 1941 . 

Extremes .- Maximum discharge during yea r, 152, 000 second-teet Nov. 25 (gage he i ght, 41.10 

fe et); minimum, 520 second-teet Oct. 26 . 1938-411 Maximum discharge , that or Nov. 25 , 1940; mln1murn , 278 second-teet Oct . 9, 13, 1939 . Max imum stage known , 49 .0 teet Dec. 13, 14, 1913, according to Information f ur- ni shed by local resident. 

Remarks.- Records !air. !'.any small diversions above station wh ich do not appreciably ----.:TieCt tlow except during low stages. 

Dieoharge , 1n second- teet, water year October 1940 to Septeaber 194~ 

Da Oot . Nov . Dec . Jan . Feb . Mar . Apr . May JUDe July Aug . Sept. 

l 1,980 :5,950 1011 , 000 22,000 5,700 24 ,-400 13, 000 :52 , 200 28 , 600 16,200 :5,700 6 , 600 

2 2,220 4,180 98,400 18 , 900 9 , 660 19,900 12, 000 28,600 22,700 12,800 3,420 6 , 800 

3 2 , 040 1,820 79 , 200 18,600 27,100 16,300 11 ~0 25 , 400 18 , 600 10, 800 S,280 6,060 

4 1 ,710 1,920 52, 600 18, SOO 52,400 18,900 11, 000 25,400 17,400 9 ,000 3 , 070 5,620 

5 1,410 4,750 32,700 17,000 63, 900 18, 300 9 , 890 30,800 25 , 100 8,800 S,210 , , 980 

6 1,230 8 , 220 27 , 100 14 , 900 60 , 000 18 , 700 10 , 800 43 , 200 22 , 700 7,200 :5 , 210 4 , 660 

7 1,080 8 , 000 24,600 1S, SOO 46 , 900 36,600 9 , 660 59 , 300 21 , 600 7 , 200 3,420 4,~o 

8 1,010 :s,.ao 23,400 13 ,300 33,700 50, 600 8,800 69 , 800 18, 900 7,600 4,820 4 , 340 

9 9S1 2 , 960 21 , 600 11 , 800 26, 500 61 , 300 7 , 800 72,200 19, SOO 7,600 3,700 4,180 

10 882 2 , 680 17 , 900 10, 600 22 , 700 45 , 400 8 , 800 67 , 400 20,200 6,800 2 , 940 3 , 210 

11 S64 1 , 930 15, 500 9,660 20, 900 36, 600 9,660 60,800 32 , 800 6 , 800 2 , 940 3 ,210 

12 840 1 , 610 40,600 8,800 19,300 26,400 8,200 52 , 800 44 , 800 8,290 2 ,820 S, S50 

13 805 1 , 610 76,200 8,200 18, &00 19 , 300 6 , 800 43,200 48,700 26 , 700 2 , 760 S , 210 

14 74.2 1 , 320 80 ,600 14,700 16,700 16, 400 6 , 060 38,400 50,600 48 , .. 00 2,940 S , OOO 

15 707 1 , 280 7& , 400 35,200 13,800 13 , 800 5,700 38, 000 50 , 600 65,500 2,880 2,880 

16 682 1,140 80,200 49,800 11,500 12,500 5,700 S3 , 700 55,100 49 , 600 2,640 3 , 630 

17 664 lXI& '79 , 000 51 ,300 10, 600 11 , 600 5,340 S1 , 900 61,200 50, 200 2 , 340 4 , 660 

18 646 896 79,400 ,1,000 9,,30 12,000 6 , 230 31,500 62, 700 47,200 2 , 940 4 , 160 

19 622 826 79 , 400 25 , 000 8 ,400 14,500 14 , 400 27 , 900 61 , 200 37 , 300 4,180 3 , 940 

20 5Q8 770 73 , 000 16,400 7,800 31,400 17,100 24,000 62,100 25 , 800 S,780 4,980 

21 686 700 56,000 14,000 s,ooo 44 , 700 19 , 100 29 ,000 46,100 17 ,000 3,070 4, 600 

22 564 700 S8,400 13,300 8 ,400 ~,600 16 , 200 32 , 600 42 , 400 12 ,500 2,700 3,630 

23 562 7119 29 , 400 12,800 9 ,200 .28 , 600 40 , 600 29,000 36, 600 10 , 100 2 , 620 3 , 280 

24 542 4S, 600 26, 100 12,000 1S,400 21 ,300 49,100 29 , 700 31,600 9 , 000 2,240 3 , 420 

25 5SO 137 , 000 20 , 900 11,~0 30,000 16,.400 36 , 600 26 , 800 30,100 7 , 800 8 ,840 3 , 140 

26 542 132 , 000 19,~0 10,600 43 , 200 14 , 900 34 , 400 34 , 800 24 , 400 7 , 000 16 , 200 2, 880 

v 552 106 , 000 22 , 000 9 , 660 S9,500 16,100 28 , 600 S9 , 800 22 , 000 5 , 880 12 , 900 2 , 580 

28 51'>3 lOS , OOO 28,300 S,400 30 , 100 14 , 900 20 , 900 41 , 000 19 , 300 5 , 520 9 , 890 2 ,400 

29 1 , 2SO 102 , 000 S3 , 000 7,600 - 15 , 600 19,SOO 42 , 800 17 , 300 4 , 980 11 , 000 2,340 

30 2,100 106, 000 33,700 6,800 - 18,SOO 29 , 900 41 , 700 16, 1?0 4 , 660 8 , 200 2 , 2QO 

31 1,120 - 27, 200 6,060 - 15,800 - ~5 800 4 , 180 6 , 600 -

llonth Second- Ma.xi•u. M1n1•ua lie an RWlo tr in 

root-days aore-reet 

October .......•.......... . .. ~· ... o ••••••••• 30, 574 2,220 1'>30 986 60,640 November . ................... o • • o •••• ••• •••• 7Q1 , 037 137,000 700 26, 370 1 , 569 , 000 December ........ ............... . .... ... . .... 1,499,300 lOil,t>oO 15 , 600 48, S60 2 , 974, 000 

--- ---- ------ ------ ------ ------ Calendar year 1040 ...................... 3,866 , 722 137,000 S54 10 , 560 7 , 667 , 000 

------ - ------ ------ ----- - -- --- - January ............. . ....•.. o •••••••••••••• 531,780 51 , 300 6 , 060 17 , 150 1 , 0&5, 000 February .......... . ............ ... o ••••• • •• • •• 672 , 390 6S , 900 5,700 24,010 ~~4 000 

March . .. ......•..•.......•..•..•.. ..... .... 739,000 61 , 300 11 , 500 23 , 840 1 , 466 , 000 

April ...... ... •..••.•..•.•.. •. . •..•. . •. · ... 482 , Q40 49,100 5,340 16,100 957 , 900 llay . .......................... . ..... . . .... . 1,219,500 72 , 200 24 , 000 39 , 340 2 , 419 , 000 June .. ..............•... . . . . ... o ••••••• •••• 1 , 020,700 62,700 16 , 100 ~4,02 0 2 , 025, 000 J uly . . . . ... .. .......... .... .. . . . ..... ... .. . 537 , 610 65 , 500 4 , 180 17 40 1 , 066 , 000 August ....... . ........ ....... .... ......... . 148 , 150 15 , 200 2,240 4, 770 29S , 900 September . . . . ........ .... . .... . . .. . . ... .. . . 118,190 6 , 800 2 , 290 3,940 234 , 4.00 

Water year 1940-41 . .......... ..... ... ... 7,791 , 171 1:)7,000 530 2.1,350 16, 450, 000 

Note . . - No record NoT . 25, 26 , Jan . :SO to Peb. 1 , Peb. 18-23 , Apr. 8-18 , JU.ly 3-11, 26-30, Sept. ~1-301 dhcharge co=puted fl"''m graph baeed on t wice-dally gage readinge . 
78 BRAZOS RIVER BASIN 

Brazos River at Richmond , Tex . 

Location.- water-stags recorder, lat . 29 °35', l ong . 95°45 ', on bridge on U. S. Hi ghway 90 in Richmond , Fort Bend County, about 1 , 500 teet downstream !rom bridge o r Texas & New Orleans Railroad ( ronnerly Galveston , Harrisburg & San Antonio Ra!lway) . Datum 

or gage is 40.8 reet above mean sea level, datum or 1929 . 

Draina~e area.- 44, 050 square miles, or Which about 9 , 240 squar e miles is probably noncon r!but! ng . 

"Records available .- January 1903 to June 1906, JUne 1931 to September 1941. October 

1922 t o September 1931 , at site at Rosenberg, 7.6 miles upstream; records equivalent except ror d ive rs ion by Ri chmond Irrigation Co .'s canal. U. S. Weather Bureau has collected gage-heigllt records in this vicin ity since 1914. 

Average discharge.- 21 years (1903-5, 1922-41), 7, 924 second-teet. 

Extremes .- Maximum discharge during year, ll7, 000 second- teet Nov . 28 (gage he i ght , 38 .40 

teet ) · ml n!mum, 555 second-feet Oct. 24. 196;3::6; 1931-41: Maximum discharge , that or Nov . 28 , 1940 ; mini mum, 33 second-

!ee~l~~~ · oi3 ju;;!' ~2 , reached a stage or 40 .6 reet , present datum, rrom !looctmarks, (d ischarge, 120, 000 second-feet). Flood or December 1913 reached a stage or 45 .4 reet, 

present datum, from rloodmarks. 

Remarks .- Records ! air. Considerable water diverted above station for irrigation and -rniiliiCipal supply . See records o r Brazos Valley Irrigation Co. ' s canal near Fulshear 

and Richmond Irrigation co. ' s canal near Richmond . 

Discharge in second-teet water year October 1940 t o September 1941 

~ Oct. Nov . Dec . Jan . f"ob . Mar. Apr . llay June July Au&. Sepl . 

l 1 , 120 1,560 111,000 25,700 6,760 26,500 16,200 34.,400 ~~.200 15, 400 :s,,760 7, lJ!O 

2 1 , 840 3,390 113,000 22, 100 7~0 22 .900 14,400 ~2 .~ 00 26,600 13 , 700 3 ,360 7,480 

3 2 , 180 3 ,310 105,000 20,800 18,700 20, 500 13,600 29 . 600 21 , 700 11,800 3,160 7,lJ!O 

4 2,040 2,0-t-0 88,800 20.300 45 , 600 20, 000 13,000 27,900 18 ,400 9,640 2 ,960 6 , 2.0 

5 1,800 3 , 070 56, 200 19 , 700 60,100 20 , 300 12,300 30 ,000 21 ,100 7 , 8 40 2,760 6 , 760 

-6 1,560 5,680 37,700 18 , 200 61 , 700 19,600 11 , 800 ~8 500 24 , 300 6,940 2,960 5 , 180 

7 1,360 8,020 28,900 16 ,400 51 ,700 ::52,100 12,100 51,500 27 ,ooo 6 ,400 2,860 4.,660 

8 1,220 5 , 540 24 , 600 15 ,400 ooo 47,200 11 , 000 6~ 200 25,000 6, 580 3, 260 4.,660 

9 1,120 3 ,UO 23 , 200 14,400 28, 700 51,700 10, 300 69 , 000 21,000 6,940 4,420 4,420 

10 1, 060 2 , 960 20, 000 ooo 24,800 4:9 , 000 8 ,800 69,900 21 , 800 6,4.00 3,520 . , 090 

11 1,000 2, 670 18,400 12,100 22,900 40, 000 11 , 200 66 ~00 ~0,200 5 ,600 2,670 3,760 

12 9.0 2, 130 29,000 11,200 21,~0 30,600 10,700 59 , 700 ·~.~00 5,750 2, 580 3 , 980 

13 880 1, 840 67 , ooo 10, 700 20 , 000 22,400 9,420 50,200 48 , 400 15, 400 2,400 3,760 

14 850 1,800 77,600 12,400 19,200 19,000 8 , 020 42,200 50 , 400 800 ~no 3,560 

15 778 1,680 78, 100 30 , 200 17,100 16,400 7,300 39 ,.800 51 , 400 50,600 2 ,490 3,260 

16 790 1 ,440 78 , 700 48,100 14 ,400 14,200 7 , 120 37 ,400 52 , 000 49 , 800 2,400 4,310 

17 718 1, 260 79 , 100 50 , 700 13 , 000 13, 200 6 , 760 33 , 800 58 , 000 48, 100 2 ,130 7,120 

18 . 700 1 , 160 78 ,700 45,~ 11 , 800 13 , 500 6 , 240 33, 500 61 , 100 46,500 1 , 880 6,680 

19 700 1,030 79,100 32,700 10, 300 15,600 10,700 ~1 ,700 62,400 40, 200 2 , 620 5,460 

20 69( 940 76,700 22, 000 9 , 420 28 , 200 17 ,400 28, 500 57,400 ::50 , 200 ~.870 5 ,460 

21 650 880 65,300 17,900 8 ,800 46,000 22 ,300 27 , 600 48,800 21 ,400 3,460 6,240 

22 748 820 49 ,700 15,900 9, 200 43,400 20, 200 33 , 700 44,400 15,800 2 ,760 5 ,180 

23 940 820 35,900 16,100 9 , 200 ~3 ,200 30,900 ~2 ~00 38 , 900 12,100 2 , 310 4,660 

24 585 13,600 29 , 000 14,400 14,500 26 ~ 47, 700 31 ,4.00 32 , 800 10 ,300 2,080 7,460 

25 59i 82 , 800 25 ,400 13 , 700 26,200 21 , 300 44,600 30, 200 29 , 300 8,800 2,210 6 , 240 

26 600 102 , 000 22,100 12~ 700 39 ,400 17 , 700 S7 , 400 S1,700 26 , 400 7,480 12,200 6 , 180 

27 6~0 110,000 22,100 ll '600 42 , 200 17 , 400 33, 800 39 , 000 22 , 600 6 , 580 14 , 700 4 , :no 

28 ~~~ 116, 000 25, 70CI :0, 71';0 33,300 17,700 ~ 41 , 400 21 , 000 5 ,760 11,400 3,660 

29 115,000 30, 000 9 • • ~a - 16,400 22, 600 43,000 17,900 5 ,180 10,700 ~,160 

30 1, 240 112, 000 ~.soo 8, 400 - 19 , 000 26,300 44 , 300 16 , 600 4,660 10,300 2 , 960 

31 2,04( 30 , 400 7 , 480 - 19 , 000 - 40 , 000 - 4 , 200 8 , 020 - Wonth Second- Wu.imu Win1•WD Mean Runott 1D 

toot-days acre-teet 

October . . ... .. .. ..... . . ... . ...... ...... . . . . 33 , 362 2 ,180 585 1 , 076 66,170 November . ... ... . . .. ... , ········ ······ ·· . . . 708,800 116, 000 820 23 , 6:SO 1 ,4C>e,OOO Deoe•ber . ....... .... . .. ..... ... ....... ..... 1 , 638 , 800 113,000 18,400 - - ~2!~~ 3 , 261 ,000 - ------ ---- - - Calendar year 1940 .......... .. .. .... ... 3 , 911 , 693 116 , 000 460 10 , 690 7 , 759 ,000 

- ------ ------ ------ ------ -- ---- January . ......... .... ...... ... .... .... .... . 698,700 50 , 700 7 , 480 19,:S10 1 ,188 ,000 February ....... ... ........................ 684,010 61 , 700 6,730 24 , 430 1 , 357 ,000 March . .. ... ......... .. ...... ... ....... .. .. . 800 , 200 51,700 13, 200 25 , 810 1 , 587 ,000 

April ... .......... .. . ............. ...... .... 631,360 47,700 6 ,240 17 , 710 1 , 054 ,000 

llay . .. ... . ...•. . • •. • .. •..•..•. .• ..• . .• .••. . 1,264, 000 69,900 27,600 40,770 2 , 607 , 000 J~e . ... .. . .. ... . .... . ..... . . ..........•.. 1 , 053,400 62 , 400 16,600 35 , 110 2 , 089 ,000 July .. . . . .... ... •. . •..• . .... • . . . . ........ 624 , 850 50 ,600 4:,200 16, 930 1 , 041 , 000 August ... .. . .... . .... .. . .................. 138 , 610 14,700 1 , 880 4: ,468 274 ,700 September . .. . .. .. ...... ....... ..... .... ... 153,0~0 7 ,480 2 , 960 5, 101 303 , 500 

Water year 1940 - 4.1 ... ... ·············· 8 , 129 , 022 116 , 000 585 22 , 270 16 ,120 ,000 
BRAZOS RIVER BASIN 79 

Salt Fork or Brazos River near Aspermont, Tex. 

Location .- Water-stage recorder, lat. 33°20 ', long . 100°14', at bridge on u. s. Highway 63, 5i miles downstream !rom Dove Creek and 13 . 2 miles no rthwest or Aspermont , Stone- wall County . Datum or gage Is 1, 588 .7 teet above mean sea level, datum or 1929 . 

Dra na~e area .- 4 , 834 square miles, or which about 2, 770 square mlles Is probably non- con r!but!ng . 

Records ava1lable .- December 1923 to August 1925, J\lne 1939 to September 1941. 

Exti§~t[ re~~~ ~~~c~~r~!o~~~n~~~: :· 24, 300 second-teet May 3; maximum gage he i ght , 

1923- 25 , 1939-4i: Maximum discharge, 26 , 600 second-teet Aug . 16 , 1940 (gage height, 11.05 teet), !rom rating curve extendetl above 20, 000 second-teet; no !low at t imes . Maximum stage known, 14. 4 teet, present sl te and datum, 1n December 1913; flood or November 1934 reached a stage or 13 . 7 teet according to Information rurn1shed by local residents. 

Remarks .- Records poor. Dally discharge published only to show d1str1but1on ot runott. --rolarge diversions above station . 

Discharge , in second-teet. water year Oc tober 1940 to September 194~ 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Oct . 

.~ 

.3 

.~ 

.1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

• 4 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

.4 

.2 

0 

73 

Nov. 

38 

22 

12 

3 . 8 1.2 

. 2 

.2 

1.0 

2 . 8 

2 . 6 

2 .2 

2 . 0 2 .0 

1.8 

1.6 

1 . 6 1.6 

1.6 

1.6 

2 .0 

4.2 

5.0 

4. 2 

a750 

Dec . 

·~5 

1.2 

.9 

. 6 

.6 

.6 

.a 1.0 

1.8 

2.0 

1.6 

1.2 

0 

0 

0 

0 

0 

0 

.9 

.7 

.6 

• 4 

.3 

.2 

.e 

llonth 

Jan . 

0 

0 

0 

0 

0 

.a 2. 6 1.8 

.7 

.5 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

. 2 

.e 

.5 

.3 

.5 

.4 

Feb . 

5.0 

12 

11 

7 .0 

4. 2 

3.8 

2 .8 

1.8 

1.0 

. 8 

.4 

.1 

0 

0 

0 

0 

0 

0 

0 

2 . 0 

.8 

1.2 

76 

75 

53 

105 

lOB 

75 

October . ... . ....... . ..... , ...•. . ..•. .. .. .. . Noveaber . . . .. . . ........ . ..•........ ...... .. Deoea~ar ....... . . . ...... ... .. .. ... . ..•.. . .. 

Mar. 

54 

4l 

25 

l4 

10 

8 . 5 

6.6 

5.4 

3 . 4 1 . 4 

Apr . 

aBB 

a 53 a46 

a30 

a21 

aH 

alO 

a6.2 

5 . 4 3 . 8 

.8 2.8 

.5 2.6 .2 2 . 4 .1 7 , 2:S,O 

.1 1,940 

o no 0 185 .5 dll 2 . 0 a72 

1 .8 52 

1.2 35 15 26 48 4 25 373 24 

478 18 

l,QSO 

1 , 230 

312 

2 43 

160 

dU 

H 

18 

42 4, 730 

9 , 600 

1 , 580 7 ,490 17,500 

4 , 660 1,830 

l~~g 

::;~ a405 

:;~9 

a.18! =~~ 

:~~ 61 10 

54 

7~ 

3 , 06( 

2 , 01( 8 , 96( 

2 ,48( 

8~~ 75 

~:~ 21 

Secondtoot-days ll&xiaua 

6. ~ 

5 , 36&.2 

260.6 

73 

June 

170 

673 

472 

136 

76 

291 3 , 600 1 , 520 2 ,4&0 

2 , 780 

~30 

1 ,140 

a757 

a653 

4,54.0 

,1 ~ al,4~~ a492 

• 384 a342 

:;~~ 

·;gi 

588 

~~~ HC 

~~ 

July . 

1,510 

721 l,tOO 

&705 

·s~o 

a401 

282 

256 

408 

328 

144 

85 

68 

51 

38 

31 

45 

22 

27 

40 

56 

25 

17 

56 

124 

53 

140 

72 

42 

22 

4 

Aug . 

58 

13 

7. 0 5.8 

5.8 

4 . 2 5.S 

2 .4 

1.0 

10 

23 

19 

.5 

.3 

. 3 

.3 

.3 

.1 

6 . 2 1 . 4 

2 . 8 10 

693 

196 

62 

21 

10 

106 

513 

189 

56 

Sept . 

20 

ll 

a595 

709 2 , 660 

a502 

a384 

a 404 4,150 

934 

a320 

a358 

1 ,020 

585 

444 

~12 

195 

242 

786 

410 

195 lll. 75 

54 

40 

30 

22 

18 

17 2,..350 

lie an Runoff in aor~teat 

2 .42 179 8 .41 

105 

149 10,640 517 
eo BRAZOS RIVER BASIN 

Whi te River at Pla i nvi ew, Tex . 

Location .- Water -st age r ecoroer, l at. 34°11 ' , long . 101°41 ', at bridge on Broadway Street at Plainview, Hale Coun ty, 0 . 7 mile upstr eam from bridge at Atchison , Topeka , and sant a re Railway . Datum of gage is 3 , 341.1 feet above mean s ea level , datum or 1929 . 

Records ava ilable .- June 1939 to September 1941. 

Ex t r emes.- Max1mwn discharge du ring year, 12 , 000 second- feet June 6 (gage height , 8 . 75 teet), by slope- area method; no flow a t times. 1939- 41: Maximum discharge , that or JUne 6, 1941 ; no n ow at times . A stage or 6 .50 feet occurred in May 1927 (d ischarge, about 1 , 100 second-fee t ), accordi ng to information f urnished by local resident . rlood or May 24, 1937, reached 

about t he same stage (d ischarge for thi s flood, published in Wate r- Supply Paper 850 , believed t o be too hi gh ) . 

Remarkll .- Record-s good except thos e above 1, 000 second-feet, which are poor . ---aliOVe station. No diver si on 

Discha rge . i n second-teet . wa t e r year October 1940 t o September 1041 

Day Oct. Nov . 

l 0 0 2 0 0 

3 0 0 

4 0 0 5 0 0 

6 0 0 7 0 .2 

8 0 . 6 9 0 0 

10 . 4 0 

11 . 1 0 12 0 0 13 0 0 14 0 0 15 0 0 

16 0 0 17 0 0 18 0 0 19 0 0 20 . 0 .6 

21 0 0 22 0 0 23 0 . 1 2.4 0 7.8 25 0 1.0 

26 0 0 27 0 0 28 .e o 29 0 0 30 '0 0 31 0 

Dec. 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

.1 

. 2 

0 

0 

. 1 

-~ 0 

0 

0 

0 

0 

llontb 

Jan . 

0 

0 

0 

0 

0 

.1 

.4 

0 

0 

0 

0 

0 

0 

0 

0 

0 . 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Feb . 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

. 1 

0 

.2 

.3 

0 

0 

October ... . . .. . . .. . . . . . . . . . . . . ... .• . .• .. .. . November . . . ... . . .. . .. .. . . • . .•. . . . .•. . . . . . . . 

Deca•be r . . . , . . . . .. . .. .. . . . . ... .. . . .. . .. . .. . 

Mar. Apr . 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

1. ~ 

0 

0 

.~ 

.5 

0 

0 

0 

0 

0 

Secondtoot.-d&ye 

1.3 

10.2 

.7 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

~ .1 

.2 

. 8 

.7 

.7 

.3 

May June 

.~ 335 4 . 9 ~ 

2 . 4 sa . 7 16 

. 4 106 

.:s 3 , 710 .l 2 , 560 . 2 1 , 120 

. 1 46~ 

0 261 

0 284 

0 1S8 0 56 0 32 0 26 

0 128 0 122 0 311 0 102 0 H 

a 6 . 0 26 

-~ 1 7 6 . 1 14 6 .2 20 9~ 89 

351 103 515 41 

349 24 46 24 25 ~ 

11 

J uly 

9 .7 

6 . 7 

4 

18 

40 

25 

14 

11 

6 .7 

4 .3 

.7 

0 

~ 0 

0 

0 

0 

0 

0 

0 

0 

0 

4.7 

7 .0 

.5 

1 62 

62 

14 

6 .4 

2 . 1 

.9 

Mean 

Au g . Sept . 

0.3 1.5 0 . 2 

0 -~ 0 . 6 0 .4 

0 0 0 0 1.2 . 2 

. 8 0 0 0 

0 0 0 . 4 0 0 0 0 0 0 

0 0 0 . 2 0 0 0 0 . 2 0 

.2 0 .1 0 .3 0 

69 0 26 0 

10 0 1 . 5 0 .1 1.2 

~-~ .& 1 . 6 6 .2 

.~ 

Runoff ill 

a.ore-taet 

o.e o o.ot 2 .6 7 .8 0 . 34 20 .s 0 .02 1.4 

Calendar year 1940 . . . . • . . • . . • . . . . . . . . . . . 20.7 7 . 8 o . 06 41 

--- - --- January .. . . . . ... . .. . . . . .. .... . ... .. . .. .. .. . . 6 . 4 0 .02 1.0 February ....... . . . .. . ... . .. . ... .. .... . .... . .6 .3 0 .02 1. 2 Maroh . . . , . . . . .. . . . .. . . .. .. .. . . .. . . ........ . 4.2 2 .3 o ~ 8 .3 

April .. . . ... . . . . . . . ...... . .. . . . .... . ...... . 3 . 1 .a o . 10 6 .1 May ... .. . ...... . .... . . . .. ... .. . . ...... .. 1,819 .0 616 0 58. 7 3 ,610 June . . . .. ... . . . . . ....... . ... . . . .... . ... .... 10,596 3 ,710 14 :56:5 21 , 020 July . ..... . . ........ .. . . . . .. . ..•. . •.. . . . . ., 410 .1 152 0 13.2 1~ 

August .. . .. . ... . . .. ... . .. . ...... .. . . 120 .9 69 0 3 .90 240 

Septeaber . . .. .. . . .. .. . . . . . . . . . .. .. . . . 

1 

____ 1_1_.s+ _ _ _ e_._2+-----o+----· 3_9+ ___ 2_3 _ 

later year l94:0 .. 4J. . . . . . . . . . . . . . . 12 978 4: 3 , 710 0 35 . 6 26 .. 750 

Je:!e~~ft g:;,; :" ~~ ;~~ ~ ~0bo7:~c:~~t~rt .; May ~1 (8 p. m.) 760 eec.-rt. 1 June 2 {2 :30a. m.) 

o. lfo gage-he i ght record ; dis cha rge computed. on bas h or recorded range 1n s tage and some gage reading e. 
BRAZOS RIVER BASIN 81 

Clear Fork or Brazos River at Nugent , Tex . 

Location .- Water- stage recorder, lat. 32°41', long . 99°40 ', at county highway bridge In 

l'lugent , Jones County ,. 4 miles ups ream rrom Deadman Cr eek. 

Drainage area .- 2 , 220 square miles. 

Records available .- February 1924 to September 1941. 

Average d ischarge .- 17 years, 176 second-feet. 

Extremes.- Maximum discharge during year, 6, 960 second-feet May 4 (gage he ight, 14.18 

feet)· mi nimum, 3 .3 second- feet Nov. 14, 15 . 19~41: Maximum dischar ge observed 47, 000 second-feet Sept. 8 , 1932 (gage height, 27 .05 reet, at site then In use \, rrom rating curve extended above 25, 000 

second- feet; no !low at times . Maximum stage known, about 30.0 rest In 1876 , a ccording to Information rurnlshed 

by local residents. 

Remarks .- Records ! air . Flow regulated by Fort Phantom Hill Reservoir (see p . 84) and ----nvesmaller reservoirs having a combined capacity or 106 , 000 acre- reet . Small 

diversi ons above station ! or municipal supply and !or use In mi ning . 

Discharge , tn second- teet . water year October 1940 to Septeaber 1941 

D&.l' Oct. Nov . Deo . J an . Feb . Mar. Apr . llay June July AU& . Sept . 

1 a . e 7 9 .4 5 . 2 Ha a 5 .6 15 w 40 47 1a 400 

2 6 . 2 7 7 . 5 5.2 40 &5.6 11 597 w 479 1a 76 

3 6 .2 4.1 6 .2 5 . 2 27 a5.6 10 :5 ,850 w 42a 1a 60 

4 6 . 2 4 . 1 6 . 2 6 .2 16 a5.2 9 . 4 5 , 680 ~6 66a ~ 66 

5 s .s 7 6 . 2 s.2 1~ a5 . 2 a . a 2 , 690 ~ 247 41 46 

6 5 .2 -7 6 .2 5 .2 11 s . 2 8 . 2 1 , 360 ~ 125 21 40 

7 5 . 2 ~.7 5.6 4. 8 e . a s .2 6 . 9 40 4 116 7~ 20 3a 

a 5.2 4 .6 5.6 •. a 7 . 5 5 .2 7 . 5 129 171 159 16 42 

9 6 .2 8 .8 5 .5 • • a &7.5 •• a 6 . 9 111 286 166 16 174 

10 5 . 2 5 .9 5 . 5 •• a a?.5 •• a 5 . 2 ~75 ~20 50 16 105 

11 5.2 4.5 5 .6 •. 6 &7 . 5 •. a 5 . 2 222 1 , 720 276 14 65 

12 5 . 2 .7 5.6 4 -5 a7.6 4.5 6 . 2 129 1 ., 240 956 ~ ~ 

13 5 . 2 .7 a .2 4.5 a'7.5 4.5 6 . 9 92 24a ~·6 1~ 60 

14 5 . 2 -~ a .2 4 . 6 &7.5 4-5 106 67 75~ 59 1~ 40 15 5.2 -~ 11 4.5 &6.9 4.6 1 , 540 56 1 , 010 45 14 45 

16 4.8 ~-7 1S 4.5 &6.9 4.5 S , 460 61 2 , 000 

· 40 51 17 4.8 4.1 9 .4 4.5 &6 . 2 4.5 2 , 120 46 1 ,660 2a 207 ~2 

18 4.8 4.5 7. 5 4 . 5 a6 .2 4.8 1,560 46 1 , 500 28 290 S1 

19 4 . a 4.8 6 . 9 4 . 6 a2~ 5.2 240 45 910 40 68 8 0 20 4.5 6.6 6 . 2 4.6 alB 5 . 2 260 86 1 , 220 216 ss 58 

21 4.5 s.& 6 .2 4.1 aH 5.2 127 1 , 250 675 222 2S 46 

22 4. 6 H 6 .2 4 .1 &8 .8 s . 2 90 4, 460 344 9 4 7;~ , 32 

23 4.6 5 .2 6.2 4.1 .~ 20 68 1 , 760 69 S6 28 

24 5 . 6 4S 6 . 2 4 . 1 a27 12 45 197 265 52 1 , w o l 27 

25 1S SlS 5 . 2 4 . 1 alO 11 S9 1S5 192 S1 1,20" 26 

26 5 .2 S7 4 6 .2 4 . 1 a 8 . 2 150 S4 142 166 28 674 26 

27 4-1 50 6 . 2 s.7 a6 . 9 610 40 8 0 88 22 80 23 2a s . 7 29 5 . 5 s . 7 &6.2 594 S02 62 6 2 21 122 23 29 s .7 19 5 .6 S.7 27a ~29 ~ 50 21 9SS 22 

30 s.7 11 6 .6 4 . 1 S9 65 46 45 20 1,220 22 

31 s.7 6 5 . 2 22 42 19 1 , 500 

Mon t h Second- llaxtiiUII IU ni•u llean Ruoott i D 

toot-day a aore-teet 

October ..... ..•.... , .. , .. , . .... .. ,. . .•... l64. S 13 3.7 s .so ~26 

Noveaber .. . .... .. ..........•..•....•.... 951 . 9 374 3. S 31.7 1 , 890 Deceaber ..... ... . ....... ........ ..... ... ... 211 . 5 13 5 . 6 6.82 420 

------- Calendar year 1940 ....... ~ ~ ....... .... .. 31 ,605 . 0 5 , 150 .7 86 . 1 62 , 500 

-- ----- January . .. . .. . .... ....... ....... .... ..... . 140. 4 6 . 2 .7 •• ss 27a Feb ruary .. . . . ..... .. . ... . .. ...... .. . . ..... .. 502 .5 Ha 6 . 2 1a .o 997 March . . . . . . . · ·•·· ·· ····· · · ··· ····•· 1 , 846.8 510 4 . 6 ~9 6 S, 660 April. . ... . . .... ..... ....... ..... .. . 10, 523.2 0 6 .2 S61 20 , 870 llay ......... ... .... .. ..... ... ....... .. 24 , 290 5, 680 3a 7a4 46 ,180 J une .. , ..... ······ ······ ···· ··•··•·· ··· 16 , 338 2 , 000 S6 546 32, 410 J uly .... .... .... ...... ..... .. ......... 5 , 056 956 19 16:5 10, 0SO 

August ... . .... , . .... .. . ... ... . •..•. . ....... 8 , 838 1 , 500 1S 286 17 , 530 

Sepleaber . . ...... ........ . . . ............ ... 1 , 834 400 22 61.1 3 ,640 

Wate r yea r 1940- 41 ·· ··········· ········· 70 , 694 . 7 5 ,680 3 . 3 194 140 , 200 

Peale dlacherge.- Apr. 16 (7 :30 a . m.) 3 , 640 eec.-rt.; alay 4 (2 a . m.) 6 , 960 eeo .-rt.; Kay 22 (10:!0 a.m . ) 5 ,400 eec.-rt.; June J:2 (12::.SO a . m. ) 2 , 350 aeo. - rt .; June 16 (2 p. m.) 2 , 290 eee. - t ·t . 

a lfo gage -he i ght r ecord ; die charge computed on baele or recorded r ange 1f'l etage , weather reeorde , 

and record• ror atatlon at Port Gr1trln . 
62 BRAZOS RI VER BASIN 

Clea r Fork or Brazos Ri ve r at Fc rt Ortrrtn , Tex. 

Location. - \later-stage recorder , lat . 32°56', long . 99°13 ' , at bridge on Fort Orl!rtnThrocklnorton highway , hal! a mile east or Fort Grl!!ln , Shackelford County , and 1.3 

ll'lles upstream rrom Mlll creek . Datum or gage ls 1,174 .53 r eet above mean sea level, 

datum or 1929. 

Dra i nage area .- 3 , 974 square miles . 

Records available .- December 1923 to September 1941. 

Average discharge.- 17 years (1924-41), 315 second-t eet . 

Extremes.- Maximum discharge during year, 16,300 second-teet May 4 (gage height, 31.90 

feet) ; no !low Oct . 16 to Nov . 16. 

1923- 41: Maximum discharge, 33 , 600 second-teet Sept . 10, 1932 (gage height, 35.09 

reet); no flow at !mea . Maximum stage known , about 36.0 reet ln 1900, according to !n!ormatlon turnlshed by 

local resldente. 

Remarks .- Records good except those !or period or no gage-he i ght record , which are poor. ----r'l"'Wregulated by Fort Phantom Hill Reserve! r (see p. 64 ) , and several smalle r reser- ve! rs hav ing a combined capac! ty or 106, 000 acre-t eet. Small dl versions upstream tor mun!clpal, lrrlgatlon, and oil rt eld usee materially arrect low flow . 

Discharge , i.n second-teet. water year October 1940 to September 1941 

Day Oct . Nov . Dec . Jan . Feb . Mar. Apr . llay June Ju ly Aug. ; ept . 

1 3.6 0 55 1.9 262 121 91 1,870 136 184 25 1 , 690 

2 4. 2 0 42 1.7 220 78 5 1 3,:no 127 827 22 764 

3 3 . 4 0 33 1.7 210 5 4 29 14 , 200 112 1 , 520 20 184 

4 2.9 0 26 1. 9 104 36 18 16 , 900 112 al, lSO 19 128 

5 2 . 4 0 21 4.5 60 27 9. 5 14 , 300 107 a700 19 97 

6 2 . 4 0 16 4 .9 43 22 7 .5 10, 500 173 a 480 18 79 

7 2.2 0 12 • ,g 34 1e 7.1 3 , 0 3 0 1 , 020 •2&0 1e 68 

8 2.1 0 11 4 . 9 26 14 6 .7 860 1 , 070 a220 20 54 

9 1.7 0 9 .5 4. 5 18 12 6 .7 388 1.170 a220 66 79 

10 1. 4 0 e. s 4 . 5 14 9.0 e . o 1 , 730 11 , 700 a300 41 171 

11 1.3 0 e.s 4 .2 11 6.3 9 .5 6 , 800 10, 100 a700 29 190 

12 .9 0 7.5 3 . 6 9.0 4 . 9 11 8 , 890 7 , 890 a500 23 153 

13 .7 0 7. 1 2 . 9 6 .7 4.5 11 3 , 060 2 , 7 40 al,OOO 19 116 

14 .6 0 7.1 2. 6 5. 5 3 . 6 140 835 635 635 17 91 

15 .4 0 9.5 2 . 2 4.9 3 . 6 2 , 960 376 755 202 14 74 

16 . 2 0 9.0 1.9 4.9 4 . 9 6 , 360 240 3 , 390 127 12 58 

17 . 1 0 8 .5 1.3 4.2 4 .9 6 , 920 186 4,260 102 11 57 

18 0 0 8 .5 .9 4. 5 5.2 4,190 160 3 , 360 8 4 9.5 51 

19 0 2 . 9 8. 5 . 4 7.1 5.2 1 , 8 40 140 2 ,320 75 90 58 

20 0 3. 4 7.1 . 4 7 .s 5. 9 600 696 1 , 250 6 4 180 47 

21 0 2.9 6.3 .. 6 .7 6 . 7 356 8 , 550 964 60 9 4 41 

22 0 60 5.2 .5 5 . 5 6 . 7 258 9 ,590 328 270 62 66 

23 0 339 4 . 9 .5 37 58 184 8 , 700 429 249 48 58 

24 0 225 5.2 . 5 98 15 164 7 , 680 243 147 215 51 

25 0 1 , 060 4.9 .6 243 e .5 142 1 , 820 222 90 1 ,340 40 

26 0 2.040 6.3 .5 164 eo 112 535 396 6 4 1 ,310 32 

'Z7 0 689 5. 9 . 5 142 228 106 368 316 54 959 28 

28 0 230 4. 9 . 4 184 625 92 270 622 54 240 26 

29 0 119 4.2 .. 695 90 198 560 39 448 22 

30 0 75 2 .9 • 4 356 5 , 120 166 235 34 735 20 

31 0 2. 6 .6 174 157 29 1 , 520 

Wonth Second- MaxiaWD M1n1mWD lie an Runoff in foot-days ac re-teet 

October . 30 .5 4.2 0 0 . 98 60 

November. . .......... 4 , 846.2 2,040 0 162 9 , 610 

Decembe r .. . .... .. . .. . . . . . . . ... .. . . 367.6 55 2 . 6 11.9 729 

---- -- - Calendar year 1940 .......... . . . ..... 87 , 481.4 8 , 240 239 173 , 500 

January . . . . ... . . ···· ······ ·· 61.1 4.9 . 4 1.97 121 

February . . . .... . . .. . 1,936.5 262 4.2 69 .2 3 , 8 40 

March . . .. . . . . . . .. ...... ..... 2,692.9 695 3 . 6 86.9 5 , :540 

Ap ril . . .... .. .... .. .. 29 , 900 . 0 6 , 920 6 . 7 997 59 ,:510 

May . . • • • • • • • • • • 0 • • • • .... ........ .. ... .. . 126,505 16, 900 140 4, 081 250 , 900 

June. . .......... ..... .. ... ... 56,742 11 , 700 107 1 ,891 112, 500 

July ........ . ...... ........ .... .... . 10,430 1 , 520 29 336 20,690 

August ........... ... ...... .. ... ....... ..... 7 , 643. 5 1 , 520 9 . 5 247 15, 160 

September . ... ......... .. ...... ... 4, 593 1 , 690 20 153 9 , 110 

Water year 1940-41 .. 245 , 748.3 16 , 900 0 673 487 ,400 

<s p;:~ rr~soeo;;c~it~ (4 a.m. ) 18, 300 sec.-ft . ; Juno 10 (2 :30 a.m.) 14, 600 soc .-rt .; June 11 

a No gage -height record ; d i s charge comput ed on basla ot records tor nearby ato.tlone . 
BRAZOS RIVER BASIN 83 

Clear Fork or Brazos Rl ver near Crystal Falls, '!'ex . 

Location.- Water-stage recorder above spillway or concrete dam, lat . 32°54' , long. 98°50', at Texas Co . •s pump ing plant 21 miles downstream from Hubbard Creek, and 3t m!les north- east of Crystal Falls, Stephens County. Datum ot gage Is 1 ,055 .25 feet above mean sea level, datum or 1929 . 

Drainage area.- 5,658 square miles . 

Records available .- July 1928 t o SPptember 1941. 

Average discharge .- 13 years , 544 second-teet . 

Extremes .- Maximum discharge during year, 35 ,800 second-teet June 11 (gage height, 33.45 t eet) , trom rating curve extended above 23,000 second-teet; no tlow at times . 1928-41: Maximum discharge, that ot June 11, 1941; no flow Pt times. 

Maximum stage known, about 34.0 teet, present datum, In 1900, according t o Information furnished by local residents. 

Remarks .- Re cords good except t hose below 40 second-teet, which are attected by occasional 

----accuiiiulat!on ot drift on control, and are fair. A large part ot low tlow dive r ted above 

station tor munic i pal supply and oil t!eld uses. Flow regulated by several reservoirs 

above Nugent which have a combined capac! ty. or 106 , 000 acre-teet . 

Discharge . in second-teet . water year October 1940 to September 1941 

Da~ 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 1e 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Oct. 

1.0 

.5 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Nov. 

0 

0 

0 

0 

0 

0 

0 

0 

0 

3.4 

6.9 

3 . 1 1.0 

.s 

0 

0 

0 

0 

0 

0 

0 156 1 , 590 2,090 

s. 440 

3,090 

1 , 750 

630 

270 

156 

Dec . 

102 

71 

52 

4€ 

36 

32 

29 

22 

22 

20 

22 

29 

34 

36 

650 

430 

61 

54 

.. 

36 

29 

27 

16 

11 

9 . 7 

70 

832 

205 

81 

46 

36 

Month 

Jan . 

27 

298 

96 

46 

29 

22 

14 

11 

9.7 

8.3 

6.3 

6.3 

8.3 

8 .3 

6. 3 

6 . 3 5 . 6 6.9 

3 . 1 3.1 

3 .1 

2 .3 

2 . 3 2.3 

2 .3 

1.5 

1.5 

1.0 

.5 

. 5 3 . 1 

Feb . 

3 ,350 

2,880 591 333 

192 

117 

7 4 

57 

46 

39 

29 

24 

20 

16 

14 

14 

12 

11 

12 

89 

316 

117 

290 

760 

420 

1,040 

698 

313 

October ......... . .. . ... . .. .. . ......•...... . 

Nove11be r . . ............. . •.. ........•..... .. 

Decembe r ..... . ............ . • .. •.......•.... 

Ma r . 

280 

184 125 

8 4 

57 

46 

34 

27 

22 

18 

16 

14 

12 

Apr . 

226 

132 

6 4 

57 

41 

32 

27 

20 

18 

16 

12 

12 

11 

II~ 

6 , 200 3,500 

16,300 26,800 

19,500 

14 , 200 11 , 700 

4, 340 

960 1 , 650 

June 

244 

213 

186 

164 

156 

166 

262 1 ,310 1 , 030 12,900 

9 . 7 9 . 7 6 .3 2 , 600 

7 , 960 14 ,300 9 , 9 60 

3 , 7 40 

930 

32,400 24,300 

11, 200 3,380 1, ll.O 

8. 3 5 , 150 6.9 5,840 

5.6 6,320 5 . 5 3,970 4.7 1 , 590 

4. 7 5 . 5 237 

109 

78 

766 

535 

617 

740 

333 

222 

156 

121 

742 

817 

1 , 020 

445 

762 

672 

405 3,160 

Secondtoot-days 

1.5 16,166.9 

3,412.7 

535 3,850 378 4,920 289 4,590 244 3,690 289 2,040 

12,900 

24,400 

21 , 100 

14,900 

9 , 190 

2 , 360 

610 

617 

443 

356 

29 4 

1.0 6, 440 

650 

1 , 310 

776 

384 

619 

313 

295 

415 

353 

714 

406 

M1n1aua 

0 

0 

9.7 

Calendar year 1940 . . .. . ...... . ..... , . . . . 175,856.9 11 , 000 

J ul y 

226 

607 1 , 350 1 , 650 

669 

610 

432 

289 

239 

214 

3 , 950 

616 

260 1,150 

558 

244 

166 

140 

117 

106 

95 

98 

265 

270 

166 

117 

64 

H 

7 4 

60 

54 

lloan 

Aug. 

46 

41 

36 

34 

29 

27 

27 

.. 124 

5 4 

5 4 

39 

32 

29 

303 

63 

7 4 

34 

24 

51 

201 

2 , 730 8 ,170 

3 , 940 9 ,520 

4,010 

1, 470 

650 

405 

617 

945 

Sept. 

1 , 510 1 , 470 

571 

209 

144 

117 

95 

6 4 1 , 9 30 1 ,060 

316 

260 

213 

160 

125 

136 

144 

106 

7 4 

71 

68 

57 

63 

61 

66 

57 

52 

46 

.. 

49 

Runoff in acre-= teet 

0 .05 5 40 110 3.0 32,110 

6 ,770 

460 346,600 

January .. .................. . ... .. . . ...... . . 651.8 298 .s 21.0 1 , 290 

~:~~~~ :::::::::::::::::: :::::::::::: :: l~ :m.5 u~g 1!.7 ~~~ ~~ ~~ April. ....... .... .. ... . ..... . · 33, 629.3 6,320 6.3 1,121 66 , 700 May . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . . . . 237 , 357 28, 800 244 7 , 657 470 , 800 June . ........ , .......•.. , . . . . . . . . . 113, 700 32 ,400 156 3, 790 225 , 500 

July. . . . . . . . . . . . • . .. . . . . • . . • . . • . . . . . . . . . . . . 15.616 3 , 950 54 504 30, 970 August . ..... .. ... .......•.. , .. ..... ... . . ... 34, 043 9 ,520 24 1,098 67,520 

September ... . ... . . .. . . . ... . . ... . .•. . ... .. .. l-_9_,_•_oo_+ __ 1 ,_9_3_o_+---•-4-+---3-13--i-1-8_,_s_4o _ _ 

Water year 1940- 41 481 .407 . 7 32,400 0 1,319 964,800 

25 70~ ~!~~~f[ ~ · junX:11i ~~ : gom~~m · ;g~8~gc ~~~~:}t~1 A~:. (~3 P(;· ~- !~ ~ ~ 2;~c~;~~:}t~1 A~ . c~~ a.m. l 

(8:30p.m.) 10 , 300 sec. -rt. 
84 BRAZOS RIVER BASIN 

Fort Phantom Hill Reservoir near Nugent, Tex. 

Location.- starr gage, lat. 32°37 ' , long . 99°40 ', on outlet tower at dam In Elm Creek, 4 

mlles upstream rrom Clear Fo rk or Brazos River and 5 miles south or Nugent, Jones 

Ccunty . Datum or gage Is 1,580 .0 reet above mean sea level. 

Drainage area .- 478 square miles . 

Records available .- July 1940 t o September 1941. 

Extremes.- Maximum contents observed during year, 71,900 acre-reet SeJ?t. 13-17 (gage height, 54.5 reet); minimum observed, 20,800 acre-reet· Oct. 17-25 (gage height, 35 .0 

reet). 1940-41: Maximum contents observed, that or Sept. 13-17, 1941; minimum observed , 20,290 acre-reet Aug . 12-13, 1940 (gage height, 34.7 reet). · 

Remarks.- Reservoir Is rormed by earthrlll dam with rock rlprap race; dam completed and 

----stOi'age began In October 1938. Capac! ty, 69,550 acre-reet between gage heights 1.6 reet (sill or lowest outlet gate) and 54.0 reet (crest or spillway) . Dead storage, 450 acre-!eet. Records gtven herein r epresent total contenta. Water Is used tor m\IDlclpal supply and !lood control. Gage read once dally at 6 a.m. Lake Abilene on Elm creek, Lake Kirby on Cedar Creek, and Lytle Lake on Lytle Creek (combined capacity, 

19,300 acre-teet) are smaller reservoirs upstream In Elm Creek Basin. 

Cooperation.- Capacity table furnished by City ot Abilene. 

Konthly gage be1ght and contenu, water Je&.r ·october lQfO to September 1941 

Date 

Oct. 31...... .. . •• • • • . . •• . • 36 . 7 No•. :50.... .. . ............. 36.1 Dec. 31. • •••••••••••••••••• !- _:16.:.1 _ 

Calendar y ear 

Jan. :51 •••. ••..• • ••• .. . . ••. 

Pob. 28 ................. .. . 

Mar. 31 ... . ........... . ... , Apr . 30 .. .. . .............. , May 31. •.. .• .•.•.•.. .•••.• June 30 ..... . .•. . ... . . .. ... July 31. .•...•.•••........• Aug. 31. • • • ••••••• .••• .• • •• Sept.30 ...................• 

"ater year 1940-·U . . .... . 

t Gase height at 6 a.m. 

~6.1 

3&.2 

36.6 

40.0 

46.2 

52.1 

52.6 

54.3 

54.1 

Contents 

(acre-root) 

24,000 

22,800 

22,800 

22,800 

23, 000 

23,800 

30.600 

45,700 

6~. 060 84,860 

71,140 

70,380 

Chango 1n contents during month (aoro-teot) 

+2, 300 -1,200 0 

0 +200 +800 +6, 800 

+15, 100 •H7 ,360 +1,800 

+6,280 

-760 

+48,680 
BRAZOS RIVER BASIN 85 

Aquilla Creek nea r Aquilla, Tex. 

Location.- Water-stage recorder, lat. 31°51', long. 97°12', at bridge on Abbott-Aquilla 

county road, three-quarters or a mlle upstream !rom Palls Branch and 1 mlle s outh- east or Aquilla, Hill County. 

Drainage area.- 309 square m!les. 

Re cords available.- Decembe r 1924 to August 1925, Decembe r 1938 to September 1941. 

Bxtremes.- Maximum discharge during year, 8 , 560 second-feet reb. 2 {gage height, 27.17 

f eet), !rom rating cu rve extended above 6 , 500 second-feet; no now Oct. l to Nov. 10, 

Nov . 12-22 . 1924-25 1938-41: Maximum d ischarge , 9 ,860 second-teet June 19, 1939 {gage height, 28.16 reetl, !rom rating curve extended above 6,500 second-feet; no n ow at times. Maximum stage known, about 34 feet Aug. 31, 1887, according t o ln!ormatlon furnished by local resident. rlood or Sept. 27 , 1936, reached a stage or about 33 reet , !rom noodma rk. Peak discharge or this n ood as determined about 9 m!les bel ow sta- t i on , 84,500 second-teet by slope-area method {drainage area, 370 square m!les}. 

Rema rks.- Records good . No large diversion above station. 

Discharge , in second-feet. water year October 1940 to September 1941 

Da Oct . Nov . Dec . Jan . Feb . War. Apr. llay June July Aug . Sept . 

1 0 53 9S4 3,020 110 52 127 25 20 8 . 1 6 .2 2 0 42 201 6,120 97 47 145 92 18 7.3 4.5 3 0 38 101 487 93 .. 1, 740 483 36 f 6 .H 3.7 4 0 36 83 214 79 39 396 63 26 f6. 0 2.8 5 0 34 78 166 69 36 6,570 43 29 f5.1 2.4 

6 0 29 as 166 881 40 1 , 540 40 16 51 1.8 7 0 29 73 143 1, 250 172 226 105 13 24 1 . 5 8 0 25 66 104 309 61 152 51 ll 18 1.2 9 0 23 62 90 143 44 118 35 9.1 14 9 . 6 10 2.6 22 55 as 108 38 97 803 7 . 8 8.9 9.0 

ll 2.2 2, 410 53 79 as 34 as 553 215 6.6 3 . 5 12 0 2 ,930 53 74 80 33 86 87 1,4~0 6.0 2 . 5 13 0 190 345 70 75 34 76 54 1 , 740 3 . 8 2.3 14 0 125 925 59 69 32 64 1 , 530 1 , 420 26 1.8 15 0 1,820 156 56 70 32 56 2,650 1 , 570 13 1.5 

16 0 2,000 102 56 69 4,630 51 2,890 294 6.2 1.4 17 0 195 77 55 60 507 48 2,020 97 4.0 1.1 18 0 131 63 51 69 1 ,570 45 166 70 3.2 1.0 19 0 107 58 51 66 1,180 54 105 74 2.5 .a 20 0 93 58 95 66 926 105 82 298 2 . 2 . 6 

21 0 80 57 82 64 103 194 69 66 2.0 . 6 22 143 72 55 392 59 797 193 92 44 367 .4 23 3, 9 40 67 52 1, 730 96 4, 710 135 402 35 446 . 4 24 4, 980 62 52 3, 750 84 3 , 360 63 99 30 143 .4 25 5,560 59 45 427 61 36 2 48 53 27 40 .4 

26 2 , 800 288 45 274 234 215 40 45 23 19 . 4 27 166 1 ,600 43 175 236 301 36 44 19 ll 1 . 0 28 88 297 39 127 82 215 33 43 16 87 .a 29 70 138 38 65 178 34 30 14 92 .5 

30 61 104 40 59 356 32 25 fll 15 . 4 

31 181 53 57 28 9. 4 8 . 6 

Month Second- Maximua Mini.u lie an Runotr in root.-daya acre-teet 

October .. . . . . .... . .... . . .. . . . . . . . . . . . . . . . . . 0 0 0 ~ 0 

November . . ..... . . ..... . ...• . ... . ..•..•..... 17.812.8 5,560 0 594 ~5,3~0 

December . . .. . . . ..... .. . . .. .. .... . . .. . . . 13,281 2 , v.IO 22 428 26, 340 

Calondar year 1940 .... ........ .. .... 57,731.5 5,770 0 158 114, 500 

----- - - - ------ January . ...... . .. .. . ... · · · ·· · ·· · · · ·· · ·· ··· · 4,197 984 38 135 8,320 

february . . ... , . . . . .. . . . .. . . ... ..... . .. . .... 18,198 6,120 51 650 36, 100 

Naroh ... . . . ....• . .. ..... .... .. ...... ....... 4,945 l. 250 57 160 9 , 810 

April . . .. . . ..• . •..•. ... . . .•• . • .. .. • · · • •·•·· 20,148 4, 710 32 672 39,960 

llay . .. . ..... ... •..... .. . . .. . ... . ..... • ... 12,617 6 , 570 28 407 25,030 

June . .. . . ... . . . ...... . . . . . ........ . . ..... . .. 12,779 2 , 890 25 426 25,350 

July . .. . ... . . . .. . . . .. . .. .... . .............. 7 , 748.3 1 , 740 7 . 8 250 15,~70 

August .. . . . . . ... .. . , ... ...... . ... .. , .. .... . 1, C53.3 446 2 . 0 46.9 2 , 880 

September . .. . ... .. ... . . . . . .. .. . . . .. 64 . 5 9.6 .4 2.16 128 

Water year 1940-41 ......... ... . 113,24:3.9 6,570 0 310 224 , 600 

(1 ~30" p?!~Jh7~!0o- a=~~ r~: J <i!; ~ fela;~.~) ~? 2~~c ;;~~ : }t:eb. 2 (5 ..... ) 8,560 aec.-!'t . ; Apr. 16 

r Fragmentary gage-height record; di:tcb.arge computed from pertly esthated gage belgbte. 
86 BRAZOS RIVER BASIN 

North Bosque Rlve r nea r Clifton , Tex. 

Locati on .- Stat! gage above spillway or masonry dam, lat. 31°48', long. 97°35 ' , a quarte r or a m!le upstream !rom Gult, Colorado, and Santa re Rs!lway bridge and 1.4 m!les north- west or Cl! t ton, Bosque County. Da tum or gage Is 622.7 teet above mean sea level, datum 

ot 1929. 

Drainage area.- 974 square m!les. 

Records ava!labl e .- November 1923 to September 1941. 

Aver age discharge.- 18 years , 211 second-teet. 

Ext r emes .- Maxi mum d ischarge obse rved during year, 36 , 400 second-teet May 5 (gage height, 

22 .10 teet); no now Oct. 14 to Nov. 9 . 1923-41: Maximum discharge, 38 , 500 second-teet Jan . 23, 1938; maximum gage he i ght , that or May 5, 1941 ; no now at times. 

Flood or May 9, 1922, reached a stage or about 25 teet, according to Information 

rumlshed by local resident. 

Remarks.- Records good except those to r period ot no gage-height reco rd and those below 5 

----secOnd- teet which are !ai r . Railway company pumpa about 100, 000 gallona a day (0 .15 

second-toot\ !rom pool formed by control dam a third or a mile below gage . Gage read 

twice dally, more often during high stages. 

Disobarge , in s econd- tee t . •at e r year Oc tober 1940 to Septe mber 1941 

Day Oct . Nov . Dec . Jan . Feb . War. Ap r . lla,y June July Au& . Sept. 

1 7 . 6 0 S7 452 7 , 990 635 412 680 267 231 69 123 2 3 . 1 0 72 404 4 , 510 572 372 608 249 207 66 117 

3 1.5 0 59 388 1 , 660 527 333 3 , 400 1~ 730 198 61 111 4 . 9 0 51 356 sao 46S 311 1 ,100 500 189 59 102 

5 . 7 0 48 372 680 420 289 23 , 600 3 40 1S4 56 93 

~ .6 0 46 325 662 1 , 280 267 ~0 311 17& 66 e7 

7 . 4 0 41 296 590 1, 270 1 , 290 1 ,340 1 ,420 162 51 81 

8 . 3 0 33 267 536 671 436 1 , 0.{0 500 155 96 75 

9 .2 0 29 255 476 572 304 880 356 149 75 87 

10 .2 a2 . 4 25 231 412 484 2S2 780 1,620 142 6e 81 

11 .1 al.O 3 , 3 40 219 388 420 261 1 , 280 1, 760 8,610 61 87 12 .1 . a 1 , 0 10 213 364 404 243 1,730 563 2 , 450 56 87 

13 .1 .a 1,010 255 325 388 243 sao 380 6 44 1 , 050 75 

14 0 . a 388 sao 282 372 249 680 651 420 61S 69 

15 0 .s 4 .290 460 261 356 364 590 3 , 970 249 207 69 

16 0 .7 2,050 255 255 3 40 7 , 990 518 11, 200 207 149 69 

17 0 . 7 617 19a 243 325 808 48 4 1 , 390 189 126 69 

18 0 . 7 436 171 231 500 10 , 100 452 730 171 93 66 

19 0 . 6 380 159 225 ... 2 , 780 436 536 184 Sl 64 

20 0 . 6 311 162 1 , 910 40 4 1 , 210 420 476 9 14 72 &9 

21 0 . 6 261 162 890 3Sa sao 3,sao 420 311 69 69 

22 0 46 23 1 165 1 , 180 3 4S 6 17 1 , 230 380 176 11 , 700 53 

23 0 4, laO 213 155 6 , 280 1 , 340 1 , 540 1 , 110 60a 146 8 , 250 53 

24 0 2, 590 19 4 149 7 , 510 492 1 , 170 653 990 139 a20 61 

25 0 10, 100 176 142 1 , 420 364 730 49 2 5 45 123 452 51 

26 0 7 , 570 794 136 1 , 040 3, 5 10 S42 462 3aO 11 4 267 4a 

27 0 429 3 , 3aO 136 880 1 ,490 2,290 40 4 460 lOS 311 4a 

28 0 189 967 129 730 662 1 , 740 356 436 93 354 4S 

29 0 139 572 126 527 935 3 25 388 S4 19S 46 

30 0 111 460 129 4S4 830 311 274 Sl 155 46 

31 0 420 53 a 452 289 72 132 

Wonth Second- llla.xi mu. lli ni 11um lie an Runott i n oot~ays ac re-teet 

Oc t ober . .... . •.. 15.S 7 .6 0 0 . 51 31 

Nove mber . . . . . . . . . . . . . . . . . . 26 , 364 . 5 10,100 0 S46 50 , 310 

December . . . . . . . . . . . . . . . . . ........ ... 21 , 991 4, 290 25 709 43 , 620 

------- Calenda r year 1g 40 65,394.9 10, 100 0 179 129 , 700 

---- --- - ------ J anuary. . .. . .... . ... S, 076 6SO 126 260 16, 020 

February . . . 41. S10 7 , 990 225 1 , 4g3 S2 , 930 

March. 20 , 909 3, 510 326 674 41,470 

April. . ..... ....... 39 , 918 10, 100 24 3 1 , 331 79 , 1SO 

May . . ··· · · · · · · ·· ···· . . . . . . . . . . . 52 ,930 23 , 600 289 1 , 707 106 , 000 

J une ...... 33 , a 30 11, 200 249 1 , 128 67 , 100 

J uly . . .......•. . • . •..•. 17 ,278 S , 610 72 557 34 ' 270 

August . . . .... . . ........... 25 , S76 11 , 700 61 835 51 , 320 

Sept e mbe r .. . . . . .. .. . ........... 2 , 174 123 46 72 . 5 4 , 310 

Wa t e r year lg40-4 1 .. ... ........ 290, 171.3 23, 600 0 796 575, 600 

Peak dlachars e . - Nov . 25 ( 11 p. m.) 21 , 600 aec. - tt. ; Feb . 1 (S p. m. ) 17 , 000 aec . - t t . ; Apr . 16 (7145 a.m. ) .!. 0, 000 sec. - ft . ; Apr . lS (9 a . m. ) 35 , 400 sec. - ft .; l<ay 5 (g r30 a.m.·) 36 , 400 aec . - tt. ; July 11 (10 p.m. ) 15 , 400 sec . -rt. a No gage - he i ght record ; discharge computed on baala ot rec orded r ange ln stage and we-..tbe r recorda . 
BRAZOS Rl VER BASIN 87 

Leon Rl ver near Hasse, Tex. 

Location.- Water-stage r ecorder and concrete control, lat. 31 °57', long . 98°28 ' , at brlclge on 0 . S. Highway 67, 1,000 teet upstream !rom bridge or GuH, Colorado&: Santa Fe Railway, 0. 4 mile upstream !rom Walnut Creek, and 2.1 miles northeast or Hasse, Comanche 

County. Datum or gage Is 1,115.1 teet above mean sea level, datum or 1929. 

Drainage area.- 1,276 square miles. 

Records available.- January 1939 to September 1941 . 

Extremes .- Maximum discharge during year, 15,400 second-teet May 12 (gage height, 16 .92 t eet); no now Oct . 3 to Nov. 9. 1939-41: Maximum discharge, 15,900 second-teet ·June 20, 1939 (gage height, 17 .04 

teet); no now at times. 

Maximum stage known, about 25.0 teet In May 1908, according t o Information rumlshed 

by Texas State Highway Department. 

Remarks .- Records good except those tor periods or backwater, which are poor. No large 

--crrVers I on above s ta tl on. 

Discharge . in second-feet. water year Oc tober 1940 to September 1941 

Day Oct . Nov. Dec . Jan . Feb . War . Apr . May June July Aug . Sept. 

1 0.3 0 168 224 cl, 710 540 211 1,120 1~ 64 18 449 

2 . 2 0 ee 255 9 , 870 365 161 723 123 94 17 256 

3 0 0 60 480 6 , 090 300 1~ 2 , 590 198 196 16 168 

4 0 0 49 ~0 2 , 700 248 123 6,44.0 232 259 14 111 

5 0 0 43 224 1 , 280 208 111 12,000 171 191 14 82 

6 0 0 37 164 668 186 104 6,130 239 85 24 66 

7 0 0 35 127 448 177 108 1 , 850 518 62 16 62 

8 0 0 33 108 330 161 97 985 197 58 13 56 

9 0 .3 32 94 270 164 91 690 130 154 13 79 

10 0 1.4 30 82 232 145 85 690 o366 76 12 290 

11 0 . 7 42 73 200 130 79 1,980 791 82 10 340 

12 0 . 4 60 68 180 123 79 13,100 640 134 10 324 

13 0 . 6 62 79 161 108 79 8 , 610 498 104 122 183 

14 0 1.1 52 97 145 104 79 4,910 372 68 253 127 

15 0 1.1 805 91 130 108 o288 1 , 860 c404 54 516 94 

16 0 1.0 1 , 240 76 115 111 1 , 610 892 1,570 46 1!93 76 

17 0 .9 1 , 370 68 108 108 985 570 1,340 42 85 70 

18 0 . 8 1 ,160 62 104 123 612 410 598 39 43 66 

19 0 , 7 622 58 120 1~ 567 300 356 147 27 64 

20 0 . 7 325 64 1,010 1~ 580 260 214 280 19 62 

21 0 .a 208 54 1,~0 130 616 935 127 151 154 62 

22 0 2 . 0 148 52 1 , 260 123 481 1 , 840 108 ee o941 58 

23 0 cl.lSO 108 52 1,500 2M 300 2,440 ee 68 c4 , 030 52 

24 0 ],740 94 so 4 , 890 410 205 1,870 145 49 7 ,920 56 

25 0 o4.580 85 50 3 , 070 395 148 1 , 240 145 37 4 , 120 52 

26 0 .. ,10 111 49 1 ,4 20 747 200 716 115 33 2 ,480 46 

27 0 2,000 537 47 848 1,220 590 440 148 29 1,740 42 

28 0 1.370 678 4-4 710 985 965 310 111 26 4,200 37 

29 0 674 885 H - 707 845 232 70 24 2 ,900 36 

30 0 310 658 H - 400 1 , 240 180 60 22 1 , 560 35 

31 0 - 344 116 - 270 - 158 - 19 871 -

Month Second- Max imum Minimum Yean Runorr in 

toot-days acre-teet 

October , ... . . . . . . . . . . . . . . . ....... ... ...... . 0.5 0.3 0 0 . 02 1.0 

November ... . . . ... . ....... ... .. .. . .. . . .. ... . 16 , 146.5 4 , 580 0 ~ 32,030 

December ....... · · · · · · · · ·· ····· ... .. . ..... .. 10 , 169 1,370 30 328 20 , 170 

------- ------ ------ ------ ------ Calendar year 1940 . . . . . . . . . . . . .. . ... ... . 52, 945 . 9 4,580 0 145 105, 000 ------- --- ---- ------ ------ January . .... . . ... ...... ..... ........ ....... 3,466 480 44 112 6,870 

February . ... ...... . ..... . .. . . . . . . . . . . . . . . . 40,900 9 ,870 104 1 , 461 81,140 

March .... , .. o ••••••••• ••• •• • ••• • ••• •••••••• 9 , :S26 1 , 220 104 301 18,500 

April .... . . . • .. ..... . .. . ..•.. . ...... ·•···· 11 , 777 1 , 610 79 393 2:S , 360 

llay ........... ............................. 76,461 13,100 158 2 , 466 151,700 

J une .. ... . . ·· ······· ······················· 10,111 1 , 570 60 337 20, 050 

July ......... . .. •. •..•..•..•....•..•.. ..•.. 2 ,771 280 19 89 . 4 5 , 500 

August ....................•....... . ..•..... 32 ,451 7 , 1!,20 10 1,047 64 ,370 

September .................... o •••••••••••• 3,501 449 35 117 6.940 

--- - Wator year 1940- U ...... .............. .. 217 , 089 . 0 1~ 00 0 595 430 , 600 

Peak d.hcba.rge.- Peb. 2 (6 a.m.) 10, 600 aec.-tt . ; J1ay 5 {4 p.m . ) 14 , 900 aec. - tt. ; J1ay 12 (2 : 30 p. m.) 15 ,400 aec . -tt.; Aug. 24 (8 a.m.) 8 , 700 sec . -rt. 

c Backwater from Walnut Creek; dhoh&rge computed from adjusted gage - height graph baaed on dhcharge meaauremonte and weather recorda. 
66 BRAZOS Rl VER BASIN 

Leon River near Belton , Tex. 

Location_ water-stage recorder upstream !rom spi llway or concr ete dam, lat. 31°04'15" , long. ·97.26 ' 30", 1 , 400 reet upstream !rom bridge on U.S . Hlghway 61 and 2 mlles east or Belton, Bell county . Datum or gage ls 476.9 reet above mean sea level, datum or 

1929. 

Drai:lage area .- 3,547 squa re mlles . 

Re cords available .- October 1923 to September 1941 . 

Average discharge.- 16 years, 671 second-t eet . 

Extrerr.es.- Maximum diRCharge durlng year, 26 ,400 second-teet Nov. 25 (gage height , 14.16 

t eet ) · mlnimum, 3.2 second-teet Oct . 24, 25 . 1923-41: Maximum discharge, 51,100 second-tee t Sept. 26 , 1936 (gage he ight, 20 .0 

teet) by slope- area method; no !low at times. MaXi mum stages known , about 25 t eet sometime in December 1913 and 21.0 t eet sometime 

in Septembe r 1921 , accord i ng to information furnished by local residents . 

Remarks .- Records good except those for period or no gage-height record, which are !air. --sevefal sma:a pumping plants divert water above station . 

Rating table , water year 1940- 41 (gage height, 1n teet, and dhoha_rgo, ln second- teet) 

(Shitttng- oontrol method used Oc t . 1 to Nov. 22 , Jan . 15- :n, Sept . -~0) 

2 . 2 2.2 2 . 6 56 3 . 5 674 6 . 0 6 , 050 

2 .3 3 . 6 2 . 7 96 4.0 1 , 160 10 . 0 1~ 00 

2 .4 6 . o 2 . 6 143 s . o 2 , 400 1 2 . 0 19 , 300 

2 .5 26 3 . 0 267 6 .0 3 , 950 u.o 25 , 700 

Discharge , in seoond-teet water year Ootober 1940 to September 1941 

Day Oct . Nov. Dec . Jan . Feb . War . Apr . Nay June Ju ly Aug . Sept. 

l 56 407 7,140 2 , 270 7,190 5 , 850 3,060 3,210 1 , 760 1 , 060 335 a2 , 980 

2 41 41 5,770 2 , 400 ll,OOO 5 , 650 2 , 630 3 , 130 1 , 560 950 313 2 , 960 3 29 22 2,700 2,340 6 , 270 6,060 2,850 7 , 680 2 , :S-i0 930 297 3 , 370 4 20 20 1,520 2,010 6 , 270 3 ,370 1 , 880 4,950 2 ,080 1,700 290 2 , 380 

5 16 20 1,150 1,640 6 , 270 2,760 1,700 10,300 2 , 270 1,270 290 1 , 210 

6 16 18 950 1 ,540 6 , 480 10, 500 1,570 9 ,74 0 1,3~0 1,0~0 262 737 7 11 16 850 1 , 600 6 , 270 10,200 2 , 240 6,700 1 , 760 993 261 571 8 9 . 5 18 746 1,630 7,140 5 , 020 1 ,560 7,820 1,570 1 ,040 254 463 9 5 . 0 29 663 1 , 440 7 , 820 610 1,460 12,~ 1,480 641 247 ~96 

10 7 . 0 H 640 1,280 5 , 4-40 2 , 830 1,470 1~,400 1 , 920 746 1 406 359 

11 7.0 41 7,SSO 1 ,190 2 , 8 30 ~40 ~20 11 ,400 g:m' 5 , 1 90 262 ' 335 12 s. o 29 6 J' 760 1,140 2 ,340 2 , 140 1 , 200 11 , 400 6, 280 240 320 13 6.0 29 5,460 2 ,290 2 , 060 1 , 940 1,170 7 , 690 3 ,130 3,760 1 234 297 

14 5 . 7 32 4,130 4,730 1 , 820 1 , 820 1 ,150 6,060 3,290 2 , 140 297 290 

15 6 . 0 26 7 , 640 2 , 200 1 , 700 1,760 1,140 5,860 3,060 2,300 622 438 

16 5.4 22 6 , 880 1 , 560 1 , 570 1 ,700 1 ,150 6,920 6 , 390 2 , 220 367 512 

17 5.4 16 5, 060 1 ,3'70 1,470 1 , 700 1 ,470 7 , 820 4,390 1,140 247 504 

18 5 .2 16 4,2?0 1,110 1,~90 3 , 780 1 , 380 10,100 3,950 930 240 390 19 4.9 16 4,220 962 1,330 2 , 610 1 , 620 8 , 780 4.,490 920 351 305 20 4.9 22 3 , 450 920 1,680 2 , 270 2 , 080 7 , 360 5,250 612 554 267 

21 4 . 6 35 3 ,130 sao 1 , 580 2,140 2 , 830 5 , 450 5,650 657 471 240 

22 4.1 144 3,060 793 1,580 2 , 010 2 , 960 5 , 920 g3,290 605 326 220 

23- 3.6 11 , 100 2,760 755 3,040 1 , 880 

~~~ 4 , 980 g2 , 010 588 261 213 

24 3 . 5 17 , 600 2,010 719 7 , 21.0 1,820 4,680 $1,640 

~nl 234 207 

25 3 . 3 20, 500 1 , 640 663 5 , 060 1 , 700 2 , 540 4,870 31 ,640 250 200 

26 4.9 13 , 600 2 , 110 665 5,650 3 , 630 2,6~~ 4,490 1 , 540 588 a1,410 189 

27 4.9 6 , 700 3,950 614 6 , 060 4 ;770 3 , 92 3,860 1 , 940 512 1 a2 , S40 169 

28 s.o 6,270 3 , 060 6H 6 , 270 3 ,700 1~ . 4 , 040 1,420 4611 83 , 630 177 

29 6.0 6,480 2,760 597 - 4,040 ~:na 3,860 1,270 422 a3, 610 172 

'30 5.7 6 , 920 2 , 540 588 - 4 , 040 ~:g 1 , 14 0 382 a3 , 780 166 

3 1 2 ,620 - 2,270 586 - 3,290 - 359 a3 , 780 -

Noeth Second- Maximum Minimum Wean Runotr 1.n root-days acre-teet 

October . .. . ..... .... .. .. ... ..... .. ······· .. 2,838 . 8 2 ,520 3.3 91.6 5 , 630 November . . ......... .. .... ....... ... ....... 90 , 239 20 , 500 16 3 , 000 179 , 000 December .. ..... .. . .. . . . . . .. ..... . . . .... 107,129 7,880 640 3,456 212 , 500 I. -- ----- ---- -- ------ ------ ------ Calendar year 1940 . .... ... ..... . .. .. .. .. 300,117 . 9 20, 500 3 . 3 622 596 , 600 ------- ------ ------ ------ ------ January ... . . . .. ..... ..... ... .... .. ······· . .. 43 , 1 38 4,730 586 1 , 392 65 ,560 February . ...... .. .. .. .... ......... ... .... .. 124 , 810 11 , 000 1 , 330 4 , 458 247,600 Maroh .... .......... . .. .. .... ....... . . .. . .. . 109 , 930 10, 500 1 , 700 3 , 546 218 , 000 April .. . .... ...... ... .. ·•······· ····· ····· .. 66 , 440 4 ,480 1 , 140 2 , 216 131 , 800 May . . .. . .. .. .. ..... ... . .......... ... .. . ... 209,~80 13 ,400 2 , 140 6 , 767 416, 100 June .. . ..... .... . ...... ........ ..... ... ... 6o,aao 6, 390 1,140 2,689 160, 000 J ul y .... .. ..... . ...... . .. ....... ... ... . ... 42 , 331 6 , 260 359 1,366 83,960 Augu~t . .. . .. ······ ... .... ...... .......... 26 , 603 3,760 234 656 52 , 770 September . ... . ... .. . .. . . . . . . . . . . . . . . . . . . 21 , 079 3 , 370 166 703 41 , 810 

Water year 1940-il ... . . ... ········· · · 924 , 997 .a 20 ,600 3 . 3 2 , 534' 1 , 836 , 000 

Peak diacb.arsge· - Nov . 24 (7 !20 a . m.) 24l600 sec. - rt., Nov . 25 (4. 140 a . m.) 26 , 400 see. -ft. , Nov . 26 (7 a.m.) 17 , 5 aec. - rt.; Dec . 11 (9 p .m. 17 , 200 sec. - rt. ; Feb . 2 (1 a.m . ) 18 , 700 aec. - tt.; 11ar. 6 (5 a30 p. m. ) 20,300 sec.-ft. 

a No gage -height re cord; d1acharge ! r om graph baaed on occasional gage readings and weather recorda. g Computed f r om graph baaed on gage readings. 
BRAZOS RIVER BASIN 89 

Ll ttle Rl ver at Cameron, Tex. 

Location .- Water-stage re corder, lat. 30°50' , long . 96°57 ', at s i te or old McCowan brlelge , 2,100 reet upstream rrom brlelge on u. s. Hi ghway 77 anel 2 mlles sou theast or Cameron , Milam County. Datum or gage Is 281.9 teet above mean sea level , datum or 1929 . 

Drainage area .- 7 , 034 square miles. 

Records available.- November 1916 to September 1941. 

Average discharge.- 24 years (1917-41), 1 , 971 second-teet. 

Extr emes.- Maximum discharge during year, 98, 000 second-teet Nov. 25 (gage height, 37.35 t ee t); minimum, 49 second-teet Oct . 23, 25, 26 . 1916-41: Maximum discharge , 647,000 second-teet, Sept. 10, 1921 (gage height, 

about 53.2 teet, present datum, from n oodmarks), by slope-area method; minimum, 2.6 second-teet , Sept. 3, 5, 7, 1918. The flood or 1852 reached a stage or about 52 . 4 t eet , according to Information fUrnished by State Highway Department. 

Remarks.- Records good . Many small diversions tor Irrigation, municipal supply, and by ----piiiiii)fng above station a rrect very low flows . 

Ratina table, water year 1940-41 (gage height, in feet , A.nd discharge, in 

second-feet) 

(Sb1ft1ng- con trol method used Oct . t o Nov . 21) 

3 . 2 47 

3 .4 56 3 . 6 94 3.S 131 4 . 0 174 

4o5 3].4 

s .o 6 . 0 12 . 0 16. 0 20 . 0 

21.0 

Nov . 21-;)0 

498 24 .o 878 28.0 3 , 210 31.0 

4 , 910 .32.0 6 , ?00 32 . 6 

? , 150 33 . 0 

8 , 650 

10 , 800 

12,700 

13 , 600 16 , 500 18 , 400 

34.0 

35 .0 

36.0 

37.0 

Z7 , 700 41, 700 

61 , 000 

86 , 000 

Dee. 1 to 

4. 7 381 5 . 0 480 6 . 0 810 7 . 0 1 , 140 8 . 0 1 ,470 10 . 0 2 , 180 

Sopt. 30 

12 . 0 H.O 

16 . 0 18 . 0 21.0 

2,990 

3 , 860 4,780 

5,700 

7 , 150 

Ho te .- Same as preceding ta15I'iabove 21.0 teet. 

Discha rge, in second-t eet, water y·ear October 1940 to September 1941 

D~ Oct . Nov . Dec . Jan . Feb. Wa r . Apr . llay June Ju.ly Aug . Sept . 

1 83 1 , 530 8 , 850 5 , 060 3 , 070 8 ,450 6 ,460 11 ,100 4,410 g2 , 340 1', 010 3 , 730 

2 115 3,820 8,700 4,870 1.3,600 8,360 5 , 790 e,:sso 3 , 640 g2,180 942 3 , 510 

3 131 1, 140 8,500 4,780 26,100 7,950 5 , 420 10, 200 3 , 290 g2,0:50 909 2 , 910 

4 108 468 6,960 4,640 21 ,000 7 , 600 6,220 21,700 6 , 760 g1,990 876 3 , 260 

5 96 308 4,260 4 , 410 13 , 200 6,270 4 , 960 22 , 700 10 , 500 g2,950 843 :5 , 0:50 

6 87 232 3,080 3,050 10, 700 4 , 920 :5 , 950 20, 900 7 , 110 g3 , 160 876 1 , 880 

7 79 193 2 , 950 3 , 640 10,100 8 , 970 3,910 15,200 6,570 g2 , 260 S76 1,140 

8 75 170 2,660 3,500 9 , 980 16 , 600 6 , 600 15 ~ 7,330 g1 , 920 876 876 

9 70 165 2,260 3 , 550 9 , 690 16,800 5,290 12, 200 4,140 g1 , 000 810 777 

10 67 174 2 ,030 3,380 9,920 10,300 3 , 770 11 , 100 3,640 g1 , 610 760 676 

ll 65 278 2,400 3 , 080 9 , 860 6, 900 g3,460 12 ,100 8,1:50 g4 , 570 909 645 

12 60 276 16, 500 2,910 7 "850 5 , 520 g3, 250 16,800 10,700 18, 700 876 612 

13 60 262 30,000 2,8:50 5 , 560 4, 870 g3, 080 16,400 7 , 350 22 , 200 I 7].1 696 

14 68 214 23,400 12,600 4,870 4 , 500 g2 ,990 13,500 5 , 650 13, 000 662 562 

15 59 179 15 ,500 20 , 900 4,320 4 ,180 g2 , 990 11 ,100 5 , 3:50 11, ooo 1 694 546 

16 68 170 32 , 300 15,700 :S,950 4 , 040 g2 ,960 8 ,600 7 ,830 ~,100 1,300 579 

17 63 159 27 , 700 7 ,220 3,770 3,950 g2,950 S,250 9 ,540 1~ ~~ 1 1,170 711 

1S 38 152 19,200 4 , 600 3,640 6 , 280 g3 , 550 6 , 650 9 ,590 777 726 

19 55 148 11 ,000 :5 , 910 :5 , 510 15, 200 3 ,420 9 , 930 7 , 000 g2 , 990 I 662 678 

20 63 142 9 ,050 3,600 3 , 330 14,800 3,380 16"200 6 , 120 g2 , 460 645 596 

21 52 144 8 , 050 3 , 420 3 , 380 9 , 900 :5,680 12 , 100 6"950 g2 , 100 777 630 

22 52 922 7 , 000 S,290 3,770 6, 950 4 , 230 11, 000 7 , 650 g1,850 843 496 

23 49 4,840 6 , :560 3,160 3 , 680 5,940 5 , 240 10, 500 6 , 950 g1 , 710 I 7ll 464 

24 50 24 , 900 5 , 980 2 , 990 5 ,320 5 , 470 9 ,420 11 , 900 4 , 870 gl,640 620 447 

25 50 86 , 000 5 , 290 2,870 8 , 560 5 , 060 12,600 11 , 400 3 , 860 g1 , 610 579 447 

26 50 64 , 800 4 , 600 2,740 9 , 860 4 , 780 8 ,750 8 , 250 3,420 g1,610 546 434 

27 63 38,600 4 , 960 2 , 660 8,750 5 , 380 8 ,700 7 , 250 4,180 1,400 810 421 

28 76 22 , 800 7,550 2 , 5-40 8 , 360 8,550 14 , 900 6 , 360 4 , 040 1,270 I 1 , 640 411 

29 91 1~ 900 7 , 760 2,420 - 9,100 18 , 800 5,940 g3,550 1 , 210 2,1 00 404 

30 123 10, 000 6 , 360 2,300 - 7,500 17 , 700 5,840 g2 , 740 1,llO 2 , 630 394 

31 146 - 5 , 520 2 , 260 - 6, 950 - 5 , 470 - 1 , 070 3,380 -

Wonth Second- Max imum Winimum Mean Runorr in root.-days acre-tee t 

Oo tobe r ........ ... ... ..... ........•. ....... 2 , 292 146 49 73.9 4,550 

November ....... . ..... .......... .. .......... 274 1976 86,000 142 9, 166 646 ,400 

Deoember ........ . . . ... .. .. . . . . . . . . . . . . . . . .. 307 , 620 32,300 2,0:50 9 ,923 610, 200 

------ ---- - ----- ------ ------ Calendar year 1940 . . ..... . .... . ........ 1 , 056 , 533 86,000 49 2 , 884 2 , 094 , 000 

------- ------ ---- ------ ------ January ... . . . . . . . . . . . . . . . . . . . . ...... ·• · ···· 168,880 29, 900 2 , 260 6 , 125 315 , 100 

February . . ·········· ·· ··· ·············· ···· 229 , 680 26,100 3, 070 8 , 199 455 ,400 

March ..... ................ ............. ... 241 , 9:50 16 , 800 :5 , 950 7 ,804 479 , 900 

April . . . .. ................................. 188 ,410 18 , 800 2 , 950 6 , 280 373 , 700 

May . . . ... .. .............. .... ...... ......... 366, 290 22,700 5 , 470 11,820 726 , 500 

June ......... .. .............. . .... .•. . .. . . . 182,840 10,'700 2,740 6 , 095 362 , 700 

July . .............. . . . .............. .... . .. 143 , 290 22 ,200 1 , 070 4,622 284 , 200 

August . ........... .... ...... ....... ...... .. :51 , 920 3,380 546 1,030 ~,310 

September ........ . .... .. . . ... .. . . . ... . ... .. 32 , 482 3 , 730 394 1 , 083 64 ,430 

Water year 1940-41 0 0 0 0 .. 0 0 .... 0 0 0 0 .. 0 0 0 0 2 , 160,610 86,000 49 5 , 919 4, 285 , 000 

- P:~: ,137t;208e~;c~~;t 25 (5 z:50 a .m.) 98 , 000 aec.-rt.; Dec. 16 (3 p. m. ) 41,700 eec .-rt. ; Jan . 15 

g Computed. from graph baaed. on gage readings. 
90 BRAZOS RIVER BASIN 

Lampasas River at Youngsport, Tex. 

Locatton .- Water-stage recorder, lat . 30°57', long. 97°43', 300 teet upstream from brtdge on county htghway and halt a mtle southeast or Youngsport, Bell County . 

Dratnage area .- 1, 242 square mtles. 

Records available .- February 1924 to September 1941. 

Ave rage dtscharge.- 17 years, 302 second-feet. 

Extremes.- Maxtmum dtscharge durtng year, 21 ,400 second-teet Nov . 24 (gage hetght , 18 . 55 

feet); m1ntmum, ll second-teet Oct . ll, 12 . 1924- 41: Maxtmum dtscharge, 53,200 second-teet Sept. 28 , 1936 (gage hetght, 33 .5 

teet, !rom tloodmarks), from rattng curve extended above 40,000 second-t eet ; no now July 17 to Aug. 18, 1925, July 22 , 23 and Aug . 9 to Sept . 8 , 1934. 

Flood or Septembe r 1873 reached a stage of about 44.2 rest, and that or Dec. 2, 

1913, reached a stage o! 33 .6 feet present datum, according to tnrormatton furnished 

by local residents. 

Remarks.- Records good except those !or periods or no gage-hetght record, which are poor. ---smarr dtve rs1 on above station !or muntc1pal supply. 

Discharge , in second-fe et, water year Oc t obe r 19(0 to September 1941 

Oa)l Oct. Nov . Dec. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

13 

13 

13 

1 2 

12 

12 

13 

12 

13 

12 

11 

12 

12 

12 

13 

13 

13 

13 

12 

12 

336 

100 

51 

35 

28 

25 

21 

26 

35 

4B 

B15 

702 

659 

531 

596 

562 

549 

495 

475 

462 

45 9 , 540 37 3 ,330 

35 1 , 720 35 1 , 460 

35 6 , 160 

35 3 ,180 35 1 , 990 

35 1 , 770 37 1 , 610 37 1 , 460 

12 42 1 , 340 

1,220 

1 , 140 

1 , 080 

1,060 

12 915 13 U,OOO 13 13 , 400 

15 9 ,570 

14 

14 

16 

23 

30 1 ,360 

4,220 

1 , 510 1 ,190 1 , 040 

910 

1 ,590 

2 , 210 1 ,460 

1 , 220 

1 ,130 

1 ,120 

Mon th 

Ootober . ... November .. December. 

Calendar year 1940 

Jan . 

1,060 

1 , 030 

952 

910 

902 

878 

838 

BOO 

770 

732 

725 

702 

2 , 610 1 , 740 

1,100 

97B 

870 

BOO 

77B 

770 

74B 

71B 

588 

666 

638 

631 

596 569 

556 

549 

590 

Feb . 

7 ,7 60 

6 ,640 

2 , 390 1 , 9 40 

1 , 770 

1 , 770 

1,610 

1 , 410 

1 ,310 

1 , 240 

1 , 160 1,110 

1 , 050 

War. 

97B 

936 

91B 

B54 

BOO 

4 , 9 10 

2 , 680 1 , 510 

1 , 360 

1 , 230 

1 , 110 

1 , 060 

1 , 010 

Apr . 

1 , 170 

1 , 170 

1,160 995 

936 

1,150 

1,730 

1 , 090 

986 

952 

r910 

r87B 

886 

894 

May 

1 , 880 

1 , 810 6 ,580 

3,280 

3,090 

3,940 

2 ,100 

1 ,B20 1,660 

1,510 

June 

!778 

!740 

3,170 

1 , 880 1,120 

952 

927 

927 

870 

1,460 

1 , 880 

1 ,120 

Ju ly 

f603 

f 569 

901 1,190 

. 596 

f436 

f 354 

r296 

r269 315 

Aug . Sept. 

a69 

a63 

&60 

51 

51 

4B 

48 

45 

51 

54 

936 

910 970 970 902 }a1,1BO 

961 910 

B94 

755 

671 

360 

453 

814 a200 

54 

57 

57 

54 

51 

B94 936 862 1 , 0'70 

815 2 , 690 

800 1 , 820 970 1 , 560 

902 

854 

1,660 

2 , 700 

1 , 360 

1 , 240 

1,140 

1,040 

1 ,460 

1,340 

1 , 270 

1 , 240 

1,140 

3 ,44-0 

950 

1 , 660 

1 , 410 

1 ,320 

1 , 260 

1 , 1 40 

1 ,370 

B22 

B22 

944 

710 

748 1 ,4 60 

2 , 930 1,220 

3 , 000 

4,100 

4,390 

2 , 330 

2 , 040 

1 , 8 30 

1 ,320 

HO B70 659 B62 617 

1 , 980 3,100 

2,430 

1 , 310 1 , 120 

1,050 

n ,ooo 

t'952 

t'910 

r870 

B22 

603 

617 

624 

718 

638 

624 1,410 

B54 

680 

f531 

950 

336 

269 

238 

223 

209 

194 

1BO 

172 

163 

155 

146 

138 

131 

123 

all2 

51 

57 

54 

48 

4B 

45 

42 

42 

45 

45 

42 

42 

42 

40 

40 

Secondroot-days Maximum Minimum Mean Runoff in 

acre-teet 

1,770 

44,876 52, ?26 

143,746 

1 , 360 11 57 .1 3,510 

13 ,4 00 21 1,496 89 ,010 9 , 540 462 1,701 104 , 600 

13,400 11 393 285 ,100 

January.. . . . . . . . . . . . . . . . . . . 26, 910 2,610 549 868 53 , 380 Februa ry. . 48 , 243 7, 760 800 1 , 723 95 ,690 

lila rob . . . . . ..... . . , .. . . . . . . . . .. . .. . . . . . . 47,862 4 , 910 800 1,544 9 4,930 Apri l . 43 , 835 4,~90 710 1,461 86 , 950 

Way.. . . ..... . .. . ............... . .... . ... 56 , 386 8 , 580 822 1,819 111,800 June . . . ....... . .... . . . . :n,154 3 ,170 603 1,038 61 ,790 

July. .. .... ... ... .. .. ... . ... . . .. .. ..... .. 12 , 311 1,190 112 397 24, 420 

August. ....... . . . . ... 6, 200 200 12,300 

September. . . . . . . . . . . . . . . . . . . . . . . . . 1 , 496 69 40 4 9 .9 2 , 970 

1------~----~----~-----+----- Water year 1940-41 373, 769 13 , 400 11 1 , 024 741 ,400 

(3P:~.1ii8~Qge;;c~~;t. 3 o!~ . i~ · ~7 ;~ ~~~4~t;!c~~;t. 4 P~; ~ i) P~! )~.~;go -;;~:-~~~; ~~Y 3 

(5 p. m. ) 13, 200 sec.-rt. a No gage - height re cord; di3charge computed from g·raph based on engineer's notea and weather 

recorda . t Frag111entary gage - height record; d ischarge computed from portly ost1m.atod gage heighta . 
BRAZOS Rl VER BASIN 91 

San Gabriel RIver at Georgetown, Tex . 

Location.- Water-stage recorder and concrete control, la t. 30°39'10" long. 97°39 ' 20", 

loo t eet downstream !rom Missouri-Kansas-Texas Railroad bridge, lt miles downstream trom connuence or North and s outh Forks, and 1 mlles northeast or Georgetown, Wi lliamson County. Datum or gage Is 643 .34 teet above mean sea level, datum or 1929 . 

Dra inage area.- 415 square miles . 

Records available .- July 1934 to September 1941. February 1924 to August 1925 at site l 

mile upstream; records equi valent except those t or extremely low !low . 

E:xtr emes .- Maximum discharge during year, 30 , 000 second-teet Nov. 23 (gage height, 16 .95 

teet}; minimum, 1.3 second-teet (regulated) Aug. 18 . 1924-25 1934-41 : Maximum discharge , 34 , 500 second-teet June 30 , 1940 (gage height, 18.46 reed, !rom rating curve extended above 24 ,000 second-teet; mlntmum, 0 .3 second- root (regulated) June 9-12, Oct . 28, 29 , 1939. 

Maximum stage known, 39 .36 teet, present datum , September 1921 (discharge , 160,000 

second- teet, by slope-area method), a ccording to \n!ormatl on !urn! shed by MissouriKansas-Texas Railroad Co . 

Remarks .- Records good except those ! or pe rl od or no gage-helght record, whlch are !air. 

--several small dl verslone have some ertect on low !low whi ch Is also regulated at times by gates In recreati on dam 3, 000 teet upstream. 

Discha rge i n second-feet water yea r October 1940 to September 1941 

Da) Oct . Nov. Dec . Jan . feb . lllar. Apr. llay June July Aug . Sept . 

1 11 311 491 545 6,010 320 443 728 282 172 65 29 2 10 76 437 497 1 , 640 308 413 1,470 265 164 61 28 3 9 , 5 45 413 491 966 304 621 4,450 4,460 349 59 28 4 9.0 35 398 469 776 282 403 1 , 070 981 360 62 27 5 9 . 0 32 380 458 728 279 394 993 448 199 64 26 

6 9 . 0 27 362 443 760 1 , 340 384 8 40 418 150 58 26 7 11 24 358 437 638 634 1 ,230 728 413 152 57 25 8 1 0 a36 328 418 604 443 41S 652 349 152 64 25 9 e .1 a75 316 403 558 408 371 604 320 123 73 26 10 7 .6 &46 304 364 527 371 353 571 1 , 500 130 58 30 

11 7 . 2 a44 4 , 8 70 360 497 353 340 545 71S 159 53 32 12 7 . 2 &40 1,!\80 366 485 353 344 533 432 170 50 32 

13 7.2 38 964 1 , 600 458 340 353 497 375 149 48 30 

14 7 . 6 36 894 1 ,340 422 324 349 469 325 275 47 27 

15 6 . 1 35 3,220 558 413 332 340 448 324 280 44 26 

16 7 . 6 35 1 , 560 460 403 320 320 422 489 155 43 30 

17 7 . 6 35 1,110 427 369 648 312 408 344 135 40 32 

18 7 . 6 35 957 396 375 3,360 290 384 308 124 39 29 

19 7 . 6 35 667 384 366 975 300 394 282 123 34 27 

20 6 . 1 36 816 380 371 824 276 384 264 1 24 36 26 

21 8 .1 37 752 366 358 712 253 1 , 020 253 113 36 26 

22 8 . 1 1 , 880 696 349 371 645 293 870 336 104 35 26 

23 7.6 9 , 850 652 336 483 610 3 , 300 778 262 100 34 26 

24 7 . 2 10, 700 617 332 585 558 645 443 366 95 32 26 

25 10 3 ,460 597 316 408 533 458 394 256 90 32 25 

26 18 1,170 820 312 360 ?41 3 , 580 362 235 86 31 25 

27 14 776 1 , 080 296 358 688 2 , 480 340 262 83 30 25 

28 30 645 666 286 332 545 1.,.:580 311 228 81 30 25 

29 45 584 604 279 - 503 1,350 324 185 ?5 30 24 

30 36 539 571 276 - 485 876 440 162 70 30 24 

31 1.150 - 564 2?9 - 464 - 308 - 6? 29 -

Mon th Second- llaxi•UII Mini•wa lie an Runotr in root.-daya acre-teet 

October . ............ .. ..... ····• ··· · ·· ... . . 1 , 506.0 1,150 ?.2 46.6 2 , 990 

November ............ ... . ... .... . . . .... . :so, 719 10 ,700 24 1 , 024 60 , 930 

December ......... . ... ... . ... . . ..... .... ... 28 , 064 4,870 S04 905 55 , 660 

------ ------ ------ ------ ----- - Calendar year 19 40 .. .. .... .. . . ··· ···· ... 105 , 305 . 8 10,700 2 . 1 288 208 , 900 

------- ------ - ----- - - ---- - - 2e~s~o January .....................•.. . . ........ .. 14 ,"285 1 , 600 276 461 

February .. ... ........ . . . ....... • .... .. .... . 20 ,661 6, 010 332 736 40, 980 

March ...... ...... ... . .... . .... . ..... ...... 19,002 S,360 2?9 613 37 , 690 

Apri l. .... .. ................ . . ........ ..... 22 , 869 3,580 25S 762 45,360 

llay . ...... . ......... • ..•....•..• . ...... .. . 22 , 180 4,450 308 ?15 4~,990 

June .......... ... . .... .... ............ . .... 15, 882 4 ,480 162 529 31,500 

July . . . . . .......... ············•···· ······ 4 , 641 360 -67 160 9 , 210 

August ..... ... ....... ..........• . .•...... . . 1,404 ?3 29 45 . 3 2 , 780 

September ................... ............. .. 613 32 24 27 .1 1 , 610 

Water year 1040-41 . . . . . . . . . . . . . . . . . . . . . . 182,026 . 0 10 ,700 7 . 2 499 361 , 000 

(2'J>~~ .1 i6~§ee;;c~~~t . 7

3 ~; ~~3 8

(;· ;~1~,i~·;!;!:~r~~~ l1;; 1 (~ ;o) a~! 1~5:;&; -;;~ :- ~~? ; ~une 3 

(6 a.m . ) 16 , 300 aec .-.rt . a No gage - ho1ght recorc1; discharge computec1 from graph based on recorde<1 range 1n stage an<1 ln.rormatlon 1'\lrnhhed by . looa1 resldente . 

498588 0 - 43 - 7 
92 BRAZOS RIVER BASIN 

Yegua Creek near Somervi lle, Tex. 

Location.- Water-stage reco rder, lat. 30°19', long . 96°30 ', at bridge on State Highway 36 , 160 t eet downstream !rom Oult, Colorado & Santa Fe Railway bridge , 2 miles south or s ome rvi lle, Burleson county , and 5 miles upstream !rom Davi dson Creek . Datum or gage 

Is 199.29 t eet above mean sea level, datum or 1929. 

Dra inage area.- 990 square miles. 

Records available.- May 1924 to September 1941. 

Average discharge .- 17 years, 349 second-teet. 

Extremes.- Maximum discharge during year, 16 , 100 second-t eet July 13 (gage height , 13.00 tee t) ; no !low Oc t . 5, 6 , 14, 17-27. 1924-41: Maximum discharge , 56,800 second-teet July 1 , 1940 (gage height, 19 .27 teet) ; no !low at times. 

Maximum stage known , 22.0 teet, present sl te and datum, Dec. 5, 1913, according to Information furnished by chief engineer, Oult, Colorado & Santa Fe Railway Co. 

Remarks.- Records good. No di version above station. 

Discharge in second-teet water year October 1940 to September 194l. 

08J Oct. Nov . 

1 0.2 302 2 .l 368 3 .l 167 4 .l 46 

5 0 672 

s 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

0 1, 760 . 1 2,~20 

.l 625 .1 137 .l 66 

. 1 ae . l 174 .1 166 0 77 .l 32 

.l 20 

0 16 0 13 0 11 0 9.2 

o 8. 6 

o 8.o 0 57 0 1,190 0 7,220 

g ~:~ .1 4,880 

lOB 3,160 18 4 1,990 

121 -

Dec . Jan . 

1 , 070 436 404 2 40 

1 58 160 105 132 79 116 

66 

502 

1,080 1,130 

822 

1,:590 

5, 540 8 , 800 9 ,.760 

7 ,060 

6 , 520 

4, 260 2 ,820 

2 ,410 

2 , 740 

2 , 330 1,220 

510 

235 

166 

189 

933 

1,500 

1 , 650 

947 

567 

104 

94 

85 

78 

72 

67 

63 

64 

1,110 

2 , 570 

2 , 500 

1,400 822 

654 

470 

232 

141 

112 

97 

87 

83 

77 

70 

6 4 

60 

58 

Month 

Feb . liar . Apr . 

122 195 667 144 

772 116 758 100 556 88 

695 1,020 

BOO 

400 

220 

160 

128 

105 

ae 

78 

70 

64 

61 

58 

62 

158 

440 

480 

egg 

1,260 

1,400 716 

360 

1,850 

5 ,300 

3 , 070 

727 220 

150 

120 

gg 

85 

78 

76 

96 

476 1.~20 

4,000 

4,680 

2 ,820 

1,600 

1,150 779 

414 

364 

436 

292 

208 

169 

Secondroot-days 

414.5 

42,731.8 

66,963 

253 , 517. 2 

143 121 137 

212 180 

2 ,260 

1 , 700 2 , 500 

3 , 650 

4,680 

156 5 ,080 151 2 , 74.0 

142 1,550 101 1,070 

83 618 

81 

69 

60 

59 

50 

48 

46 

43 

41 

40 

40 

52 

458 1 ,400 

2,260 

1,870 

1, 300 1,2 10 

1,400 

1,930 

299 

164 

155 

187 

210 

250 

228 

153 

95 

93 

92 

151 

228 

414 

465 

455 

440 

302 

169 

136 

100 

JlaxJ.IIIUII 

184 10,100 

9 , 760 

49,900 

Water year 1940-·U ... ... .. . .... .. . . ... . . ~9,119-7 

June 

67 

56 

49 

43 

38 

34 

374 

418 3 , 550 

4, 550 

7, 340 8 ,200 

5 .,1.90 

3 ,2..0 

2,2~ 

1,790 

1,220 

1,150 946 

771 

1 ,080 

1 , 310 1,260 813 

567 

298 

367 

555 

390 255 

lUn1au 

0 

5.0 66 

0 

0 

July Aug . Sept. 

175 

110 

76 

60 

141 

142 

65 

42 

34 

30 

206 4, 3&0 

14,500 

11,800 13,700 

13,700 

8,580 

4,650 

2 ,720 

1, 590 

859 

385 

164 

111 

85 

70 

60 

52 

46 

41 

36 

lloan 

693 

929 

33 

29 

26 

23 

21 

20 

27 

51 

eo 

6 4 

60 

37 

26 

21 

l8 

16 

13 

11 

9. 4 

8.2 

7 . 0 6.0 

5 . 2 4.6 

4·1 

Runorr in acre-teet 

822 s•, 760 1.32,800 

Peale c11acharge.- Nov. 25 (1.1:30 p.m.) 12 ,500 aec.-rt.J Dec. 14 (5 a.m.) 10,800 eec.-rt.J .rune 12 (7 a .m. ) U,12traec .-rt . ; July 13 (4 p.m.) 16,100 aec.-tt.;: JUly 15 (6 p .m. ) 15,~ aec.-tt. 
BRAZOS RIVER BABIN 93 

Navasota River near Easterly, Tex. 

Location.- Water-stage recorder, lat . 31°10'10' , long . 96°17'55' , at bridge on U. S. High- way 79 , 1 mile upstream rrom bridge or Missouri Pactrlc Railroad and 6 miles northeast ot Easterly, Robertson County. Da tum or gage Is 276.42 teet above mean sea level, 

datum or 1929 . 

Drainage area .- 949 square miles. 

Recorda available.- March 1924 to September 1941. 

Average discharge .- 17 years, 442 second-teet. 

Extremes.- Maximum dis charge du r ing year, 34,300 second- tee t Nov. 24 (gage height, 19 . 58 teet); mini mum , 1.9 second-teet Sept. 18 . 1924-41: Maximum discharge , 53,200 second-teet Sept. 5, 1932 (gage height , 21.9 teet, trcm tloodmark), trom rating curve extended above 35, 000 second-teet; no tlow at times. 

Maximum stage known, about 24 .0 t ee t In 1900 , according to Information rumlshed by local residents (discharge , about 71, 000 second-tee t, !rom rating curv e extended above 

35, 000 second-teet) . 

Remarks.- Records good . No di version above station. 

Discharge , in second-teet. water year October 1940 t o September 19il 

D&J Oc t. Nov . Dec . Jan. Feb . War. Apr . llay June July Aug . Sept. 

l 4.0 e .s 911 854 59 1,180 2~ 246 ~5 126 11 7e 2 ~- 4 1e 25e 29 1 , 820 ~88 110 188 5 e2 9.4 ~ 

3 ~-~ ~ 174 ~4 2 ,810 272 ~6 1~ ~e 61 e. 1 20 4 ~-6 16 132 1eo 4, 400 22e 716 110 40 49 6 .9 16 5 ~- 4 ~ 106 150 4,400 19e 580 12e 49 40 6 . 7 12 

6 ~- 1 19 9 4 128 ooo ~2 690 192 259 1~e 6.7 e.~ 

7 2.9 11 ~7 115 1,~20 7~ ~88 570 258 142 7.2 5.6 e 2 .7 e . o 97 106 450 996 2~4 995 ~ 116 7.2 ~-9 9 2. 6 e . 7 83 ge 29e 1 , 260 204 1,610 790 70 29 4 . 9 10 2 .5 11 74 90 222 .ooo 150 2 ,100 2 ,510 50 49 4.9 

ll 2 .4 11 2~4 e 4 1eo 2 , 4:10 110 995 3 , 820 42 ~ 4-4 12 2.4 10 ~ eo 150 e66 e 7 170 2,740 50 ~1 5 .4 13 ~ 6 . 6 1,110 86 135 259 77 102 2 ,580 118 22 ~-2 14 2.4 2~ 1,360 2 , 270 122 192 70 eo 3,sno ~16 1 5 2-2 15 2.e 27 1 , 970 12,900 10e 162 64 66 3 , 220 745 11 2.1 

16 11 16 .e40 9 , 700 102 145 59 56 1,980 ,~ e.~ 2 -2 17 9 . 6 11 5 , 5eo 4, 700 94 148 56 4e 1 , 500 1,630 6 . 4 2. 1 le 4.6 9.6 5 ,400 2 , 660 86 610 56 42 1,670 1 ,100 41 2 .1 19 ~-5 7.2 3 ,,40 1 , 160 86 1,250 217 ~9 1,600 ~79 62 5.9 20 4.6 5 .e 2 ,000 ~ 106 1 , 6l!O 2~4 46 2~ 1~1 61 11 

21 4. 4 4. e 670 222 172 1,100 192 49 776 e2 60 6.9 22 ~-7 ~2~ 250 186 ~~ 660 222 2 4e 182 62 60 4.6 23 2 ~650 186 162 e12 42e 186 492 102 48 47 2.9 24 2.9 700 146 150 2 ,020 316 162 670 85 40 24 30 25 2.7 p&2oo 215 145 5 ,310 ~2 256 742 72 ~2 88 31 

26 2.6 

~ 1 , 600 146 7,660 444 590 222 62 26 283 83 27 2 .6 5 , 990 1~ 4,800 340 750 96 6e 2~ 111 ~ 

28 2.6 6,630 5 ,400 112 2 ,760 272 584 71 72 19 75 22 29 2 .6 3,960 4, 900 101 - 216 219 56 219 17 60 16 ~ 2.6 2,2eo 250 92 - 180 204 47 210 H 44 1~ 31 8 . 6 - 1 , 980 e7 - 146 - 40 - 12 24 -

No nth Second- lltuimum IUniiiiUII lie an Runoff in root-days acre-teet 

Oc tober ........ , .. , .... . .... ... ... ......... 115. 5 ll 2.~ ~- 73 229 Nove11be r ................. . . . ... ... ......... 110,~5-6 29,7/)0 4.e 3 , 685 219,200 Deoe11ber . ... ... ... .................. ..... .. 52 , 286 5,990 74 1 ,687 103,700 -- -- -- - ------ ------ --- --- Calendar year 1940 ... . .•..••.•..•.••.... 195,803 . 0 29,700 1.1 ~5 

------- --- --- ------ ------ - ~~ ~~ January ........... .. ...... o •• o • • •••• ••• •••• 37,695 12,800 eo 1,216 74,770 f'ebruary . ...... . ... . .........•...... . • . . . .. 44,115 7 , 660 e6 1,576 87 ,500 Warch .. ... . ..........•. .•....•.... .• . · ·. · · 20,759 .ooo 145 670 41,170 April. .. .. .....•..• . ......•..•. . •. ......•.. e,016 750 56 267 15 , 900 llay . .. .... . ..•. • ..•. . , . . •.. •.••.• ..... . . ... 10 , 645 2 ,100 39 ~~ 21,110 June .. .. ....... , ........... . . •.... .. .. ..• . . ~o. 419 3,910 ~5 1,014 60,34-0 July . . . ..... . • . • •. • ..•.•.. .. . • • . . ... . • . . . .. 7 ,060 1, 6~ 12 228 14,000 August ... .......... . ........ .•. . ... . . ... . .. 1,317 . 8 283 6.4 42-5 2 ,610 September . ...... ... ....... ..... ... ... ... ... 484.6 e~ 2.1 16.2 961 

Water year 1940- U ···· ······ ········· ··· ~2~ ~4e.5 29 ,700 2-1 886 641 500 

Peak di.echa.rge . - Nov . 24 ( 4 p .m. ) 34,300 eec. -tt.J Jan. 15 (6 p.m . ) 15,100 eec.-tt . J Peb. 26 (12:30 a.m . ) 0 ,400 eec .-rt. 
94 BRAZOS RIVER BASIN 

Brazos Valley Irrigation Co . •s canal near fulshear, Tex . 

Location.- Water-stage r ecorder, lat. 29°39', long. 95°54 ', 1 mlle downstream rrom point or diversion and 3 mlles south or FUlshear, rort Bend County. I 

Records available.- October 1931 to September 1942. 

Average discharge.- 10 years, 52.6 second-teet. 

Extremes.- Maximum dally discharge during year, 329 second-teet Aug . 27; no now at times. 

1931-41 : Maximum dally dischargo, 339 second-teet May 21 , 1939; no now several 

months each year. 

Remarks.- Records good except those ror periods or no gage-height record, whi ch are poor. ---station above all diversions rrom canal. Flow controlled by pumping plant. Canal 

diverts water rrom lett bank or Brazos River 18 mllea above Richmond ror Irrigation near Sugarland. Discharge shown Is water actually pumped rrom Brazos River Into 

canal. 

Discharge, in second-teet, water year October 1940 to Septeaber 194J. 

Da Oet. Nov. Dee . Jan . Feb. Mar . Apr. llay Juno July Aug . Sept . 

l 0 llO 23:5 209 100 

2 0 llO 225 201 100 

3 0 167 217 201 100 

4 0 217 209 201 96 

5 0 225 201 188 1 54 

6 0 23:5 201 209 201 

7 0 53 186 217 201 

8 0 0 1S7 203 201 

9 0 0 209 75 201 

10 0 0 160 201 201 

11 0 1<24 181 201 217 

12 57 0 1<260 209 217 

13 77 0 a276 241 165 

14 172 0 a147 273 120 

15 249 0 •:505 273 105 

16 249 0 1<302 273 0 

17 249 ll &304 265 0 18 249 12 aO 265 0 19 2 49 241 aO 265 0 20 2 49 281 aO 265 0 

21 249 

~~~ 221 289 0 22 249 182 289 0 23 249 265 138 281 0 24 2 41 249 217 249 0 25 233 249 225 257 0 

26 241 19 225 321 0 27 249 159 225 329 0 28 249 182 217 285 0 29 2 49 !i 217 23:5 0 30 214 217 124. 0 31 120 217 103 

Month Second- llax111U& lliniaua lloan Runorr 1n toot-days acre-teet 

October . . . . . . . . . . ... ... .. . 0 0 0 0 0 November . . .. . . . .. . ... .. . . .. . .. . ... 0 0 0 0 0 December ... .. ............ .... .. ....... 0 0 0 0 0 ------- Calendar year 1940 .. ......... ....... ... . 23 , 852 275 0 65 .2 47,310 ---- - -- January . ........... ·· ·· •· · · ···· 0 0 0 0 0 February .. . ........ 0 0 0 0 0 March ....... .•.•• . . . . . . ....... .... .... .. . . . 0 0 0 0 0 April . . . . . . . . . . .. ............ 0 0 0 0 0 llay . ......... . . . .. . . . , . ... . .... .. ..... ..... 3~ 2 49 0 140 S , 610 June . ......... ··· · · · ·· ·· ·· 4,114 281 0 137 8,160 July ........ ··· ··· ···· · 6 ,104 305 0 197 12,110 August ... . . . . . . . . . . . . . . . . 7,195 329 75 232 14,270 

September .. 2 ,379 217 0 79.3 4,720 

Water year 1940- 41 2 4,1.35 329 0 66.1 47, 870 

a No gage-height record ; d.lscharge computed on bae1 s ot pump recorda. 
BRAZOS Rl VER BASIN 95 

Richmond Irrigati on Co . •s canal near Richmond, Tex. 

Location.- Water-stage recorder, lat . 29°34 ', long. 95°47 ' , 600 reet downstream rrom crossing or u . .s. Hi ghway 90 , H miles downs tream rrom po!nt or dive rsion, and H miles west or Richmond, rort Bend County. 

Records availabl e .- October 1931 to Septembe r 1941. 

Average dis charge .- 10 years, 29 .9 second-tee t. 

Extremes.- Max imum da l ly discharge during year, 130 second-teet July 16; no flow at times. 

1931-41: Maximum dally discha rge, 234 second-teet June 5, 6, 1938; no now at times . 

Remarks .- Records good except t hose ror pe ri od or no gage- he i ght record, which are poor. ---:ur-G'I vers l ons from canal are bel ow station . Flow controlled by pumping plant . Canal 

d i ve r ts water rrom r ight bank or Brazos River 6 miles upstream rr om Richmond ror Irrigation south or Richmond . 

Discharge, ln second-feet , water year October 1940 to September 1941 

Da Oct. Nov . Dec . Jan . Feb . Ma r . Apr . llay June July Aug . Sept . 

1 0 0 a100 S5 103 2 0 0 83 97 103 3 0 0 60 9 4 106 4 

5 0 0 37 0 0 2-7 97 103 100 103 

6 

7 0 0 0 0 0 0 94 106 97 109 8 

9 

10 

0 0 0 0 0 0 0 0 0 

91 106 78 77 

90 62 

11 

12 

13 

14 

15 

0 0 0 0 0 0 0 0 0 0 0 23 0 0 S1 

88 49 94 17 97 19 97 17 91 83 

16 

17 

18 

19 

20 

0 0 130 0 0 82 3.0 0 9.2 12 a17 s . 9 24 a100 20 97 48 91 15 9 1 14 94 8.2 100 8-2 

21 

22 

23 

24 

25 

25 aloe 123 34 aloe 97 32 a100 97 35 a100 9 4 46 a92 103 

100 4-6 100 3 •• 

97 0 97 0 ss 0 

26 

27 

28 

29 

30 

31 

« &100 103 31 a100 100 eo alOO 9 4 75 alOO 91 0 a92 9 1 0 91 

103 0 112 0 83 0 106 0 106 0 103 

Wonth Runoff in acre-feet 

Octobe r ...... . .... . ... . ........ . •.. .. ...... 9 0 November .... . ........ ,, ... . .. . . . . ... .. .. . . . 0 0 December .. . ..... . . . • . .. ..... . .. . .. . 0 0 

Calendar year 1940 . .. . . . . . . .. , .. . ...... . 33 . 6 -- · ~4,? 0 0 0 0 0 0 0 0 14.2 875 36 .7 2 ,180 55 . 5 :s,uo 95. 1 5,850 42 . 1 2 , 510 

Water year 1940-41 . .. 7' 475.2 130 20 . 5 14 820 

a No gage-height recordJ dlac.ha.rge CCIDput&d on bas! a or pump records. 
96 COLORADO RIVER BABIN 

Colorado River at Robert Lee, Tex . 

Location . - wate r-s tage r eco rder, l a t . 31°53 ' 05', long . 100°28'46', at bridge on State 

R!ghway 208 in Robert Lee , Coke County, halr a mile upstream !rom Mountain Creek . 

Datum or gage is 1 , 771 . 7 reet abo ve mean sea level , datum or 1929, (levele by 

Bureau or Reclamati on ). 

Drain~e area .- 15,770 square miles, o r whi ch 11 , 500 square miles is probably noncontribu ng. 

Records avai l able.- April 1939 to Se ptembe r 1941. September 1916 to September 1920 

(October 1918 to October 1920 , gage heights only) , at site near Bronte, 16 miles 

downstream; Oc t ober 1923 to December 1927, at site nea r Robert Lee, 9 m!lee downstream. Records equivalent e x cept during periods o r local runorr between si tee. 

Extremes.- Maximum discharge during year, 22,400 second-t eet Apr. 17 (gage height. 18.50 teet) ; no !low Oct. 22-24. 1939-41 : Maximum dis charge, 31 , 700 second-rest June 22, 1939 (gage height , 21.70 rest, !rom g raph based on gage readings ) , by slope-area method; no !low Aug . 3-6, 

Oct. 22-24 , 1940. 

Remarks . - Records !air. About 2 , 200 acres irrigated above station . 

Discharge , in second-teet . water year Oc tober 1940 to September 194J. 

De. Oct . Nov . Dec . Jan . Feb. Ma r . Apr . May June July Aug . Sepl. 

1 1·1 4.5 35 4.0 466 ll 90 166 2 ,760 ll2 6 4 88 2 .6 3 . 6 27 4.0 478 9.3 62 1,540 1 ,700 1,340 53 86 3 .2 2 .8 21 4 .2 172 7. 4 43 6,390 &979 2,220 45 72 4 ·1 3 .0 16 4 . 0 81 7.4 33 8, 560 a380 1 , 510 38 55 5 •·1 3. 4 14 4. 0 49 6 .3 27 4, 290 &296 a790 34 150 

6 • ·1 2.8 12 3.8 35 6 .3 22 1,550 a 866 !838 33 172 7 • · 1 3 .6 11 3 . 6 28 5 . 8 19 a710 3 ,220 &442 42 97 8 a.1 8 . o 9.3 3.6 22 5.0 16 a375 !1, 980 &430 45 62 9 a.1 8.6 8.6 3 . 6 17 4.5 14 al95 !863 648 103 58 10 a.1 9 . 3 8 .o 3 .4 14 4.0 12 1,770 2 ,130 369 38 46 

11 a .1 10 8 .o 3.4 12 3.6 11 2 , 530 738 1.560 26 41 12 a . 1 8.6 8.o 3 .4 9.3 3.6 10 931 267 896 23 68 13 a . 1 6.3 11 3 .6 7.4 3 . 6 11 357 152 330 23 92 14 a.1 5.2 « 3.4 6 . 3 3.2 106 216 3 ,980 186 21 257 15 a.1 4.7 46 3 . 2 5 . 8 3 . 2 5 , 020 1.&3 3 ,180 125 69 228 

16 a . 1 4.2 30 2 .8 5.0 3 . 0 16,700 130 10,400 120 28 331 17 •·1 3 .8 17 2.8 4 . 7 3.8 14,500 112 5 ,140 90 17 192 18 a.1 3 .4 13 2 .8 4.5 5 .8 !1,890 94 1,700 83 H 97 19 a.1 3.2 11 2 .6 4.5 4.7 !885 79 718 70 14 211 20 a.1 3 .8 10 2.6 26 4.7 497 70 375 1,600 13 176 

21 .1 • . o 8.6 2.4 94 4.7 307 1,270 251 626 13 ll2 22 0 3 .8 7 .4 2 . 4 81 5 .0 231 306 195 263 2 ,200 68 23 0 3 .8 6.9 2.4 42 5.2 189 1,9-40 172 141 968 49 24 197 303 5 .8 2. 4 28 63 158 1 . 580 322 94 916 41 25 469 1H 5 .0 2. 2 21 437 133 3 , 630 260 310 662 31 

26 21 146 5.2 2 .0 16 4,950 1,490 2 ,800 228 618 276 2 4 ;n- 6.9 77 4.7 2 .2 14 3,130 476 2 , 010 149 613 235 20 28 4.7 62 4.7 2.2 13 1,010 311 !2,340 130 311 422 17 29 3.0 46 4.0 2. 4 522 334 tl, 760 120 191 149 16 30 2 .6 42 4.0 2.6 251 213 !862 108 120 251 14 31 5 .8 4.0 4.7 144 2 , 730 88 146 

Month Second- Ya.xiaua Minimua lloan Runott in root-days acre-teet 

October . . . . . . . .. . .. . ............ 713.7 469 0 23.0 1,<UO Noveaber . ......... . . . . 93 4. 4 303 2 .8 31.1 1,850 Dece11be r .. . .. .. .... 419.2 45 4 .0 13.5 831 -- ----- Calendar yea r 1940 . 48,805.9 12 ,100 0 133 ---- -- - -- 9~ ~ 

January . . . .. 96.7 4.7 2.0 3.12 192 February . ... . . . .. .. . .. ... ... 1,756. 5 478 •. s 62.7 3 ,-180 March . . . . ... ...... .. . .. . .. ... . 10, 618 .1 4,950 3 .0 343 21 ,060 April . ... . ...... .... .. ... . . .. . . . ... ...... .. 43 .810 16,700 10 1,460 86,POO llo.y . . ····· · ·· · ······ · ··· · · ... ......... 51 ,456 8 , 560 70 1,660 102,100 June . . ... ...... ... ...... ...... .. ........ ... 43, 7 49 10,400 108 1 , 458 86,770 July ... . .. . . . . . ... .•. . . ........ . .•. 17,324 2 , 220 70 559 34,360 

~~~~~!be~ : : . . ....... .. ... . .. ...... . ... 6,981 2, 200 13 226 850 

... . .... . .. ... .. . . . ...... . . 2 ,969 331 14 w.o 5,890 

Water year 1940-41 .. . . . .... . . ··· · · · · · · · · 180 , 827 .6 16,700 0 495 358 700 

Peak diacharse· - Apr. 17 (11 ..... ) 22 ,400 sec.-rt.J lla:r 4 15 ,200 sec. -ft. {7 .... . ) 10,.00 aec.-ft·J J'une 16 (8 • •• • ) 

a No gage-height record; discharge computed on bae1e of recorded range in stage &nd "eather recorda . t Fragmentary gage-height r ocord.J discharge computed f r CID pertly estimated gage height . 
COLORADO RIVER BASIN 97 

Colorado River at Ball!nger, Tex. 

Locati on .- Wa te r-stage recorder, lat. 31°43 ' 50', long. 99°56 ' 25', at br! dge on u. s. Highway 83 !n Ballinger, Runne ls County, 2, 000 teet upstream !rom E:lm Creek. Datum ot gage !s 1,593.7 teet above mean sea level, datum ot 1929 . 

ra!na~e area.- 16 ,640 square m!les, ot wh!ch about 11,500 square m!les ls probably non- con r!but!ng . 

Records ava!lable .- June 1907 to Septembe r 1941 (June 1907 to November 1915, monthly recofds on l y, i n Water-Suppl y Paper 850) . U.S. Weather Bureau has collected gage- height records !n th!s v!c! nlty ! r om 1903 to 1929 . 

Average discharge .- 34 years, 431 second-tee t . 

E:xtremes.- Maximum gage height, 20 .88 t eet May 21 (discharge not determined; affected by backWater !rom E:lm Creek); m!n!mum discharge , 0 . 9 second-foot Oc t . 21. 1907-41: Maximum discharge , 75, 400 second-teet Sept. 18, 1936 (gage height , 28 . 6 teet); no now at times. 

Maximum stage known , about 36.0 teet some time ln 1864, present s!te and datum, acco rding to Information furnished by l ocal residents. A stage o! about 32 .0 teet 

:~~r~~~'1im 6cr!~ : present site and datum , !rom !loodmarks (attec ted by backRemarks.- Records good except t hose tor peri ods ot no gage-he ight record and t hose ---arrected by backwater, wh!ch are poor. Small d!vers!ons above stet! on ror Irrigati on arrect low now. 

Oa Oc t . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

5 . 4 

4.8 

4 . 2 

3 . 6 

3 . 6 

2 .8 

2 .6 

2 . 4 2 . 2 2 . 0 

2 . 0 1.9 

1.9 

1.9 

1.8 

1.6 

1.4 

1.2 

1.0 

1.0 

21 . 9 22 1.0 23 1.3 24 1 . 2 25 1 , 140 

26 

27 

28 

29 

30 

31 

368 

101 

63 

37 

31 

26 

Discharge , in second-teet , water year October 1940 t o September 1941 

Nov. 

18 

11 

7 . 6 

6.0 

4 . 2 

4. 2 

6.0 

11 

19 

44 

24 

17 

ll 

10 

11 

10 

9 . 2 6 . 4 6 .4 

7 . 6 

6.6 

6.8 

30 492 

461 

196 

136 

109 

71 

63 

Dec . 

26 

20 

19 

18 

16 

H 

14 

16 

a39 

a35 

a31 

a28 

a24 

a 20 

alB 

18 

17 

H 

14 

13 

1 2 

12 

11 

10 

10 

10 

Ja.n . 

10 

11 

10 

10 

12 

11 

10 

).0 

10 

9 . 2 

8 .4 

7 .6 

10 

10 

9 . 2 

7.6 

7 . 6 

6 . 0 6.0 

5.4 

5 . 4 

4.e 4.8 

(.8 

5 . 4 

4. 8 

4 . 8 4 . 8 4 . 8 4 . 8 34 

F"eb . Mar . \1/ Apr . lley 

249 

668 

400 

200 

116 

79 

58 

44 

37 

31 

26 

22 

18 

18 

14 

13 

13 

12 

12 

88 

119 

68 

129 

76 

61 

22 

18 

17 

14 

13 

11 

9 . 2 9 . 2 8 . 4 7 . 6 

6. 8 6.0 

4 . 8 4. 2 

3.6 

3.6 

6 . 0 10 

11 

12 

12 

13 

13 

11 

165 

39 3 , 170 31 4 , 780 28ja2., 320 

- g985 &536 

a275 

al57 306 

e.l22 4 , 260 103 cl7 , 500 85 10, 200 71 6 , 810 

t>8 2 ,780 

49 •1,540 44 al , 180 37 a986 33 6 90 

30 

28 

24 

30 3,870 

11 , 000 15 , 500 8 , .f.8 0 5 , 180 1 , 130 

3 , 310 al ,440 

a554 

a.370 &311 

280 

239 

219 

188 

171 

635 o12,600 -i36 o5 , 3b0 3 45 3,310 280 1 , 800 234 2 , 6'70 

1 ,1 90 3,180 

2 ,110 

523 

458 

2 ,920 

1 ,9?0 

2 ,630 

1 , 700 1 , 440 

850 

June 

c3,580 

cl,860 

1 ,700 

793 

786 

3,170 

2 ,230 r 2 , 920 tl,340 

4,360 

4,820 

881 475 

1 , 260 4 , 340 

o9 , 020 6 ,700 

2 ,810 .~ 160 

a670 

a487 

&448 

a426 

a400 

a360 

a330 

a298 

275 

185 

154 

July 

164 

239 1 , 980 1,9SO 

1 ,190 

542 1 , 050 

6 45 9 46 

599 

988 1 , 530 

636 

393 

248 

182 164 140 

122 

933 

1 ,090 

522 

291 

185 

132 

330 

716 

519 

322 

214 

146 

Aug. 

112 

90 

79 

68 

68 

63 

56 

68 

53 

102 

82 

56 

44 

179 

170 

71 

79 

49 

35 

30 

28 

159 2 , 160 1 , 190 

1 , 290 

649 

977 

.f , 310 

495 

207 

288 

Sept . 

185 

129 

96 

96 

79 

96 

192 

1 36 

150 

239 

109 

85 

109 

150 

369 

464 

960 

3 40 150 

1~ 

196 

132 

93 

82 

66 

56 

46 

41 

37 

37 

Month Second- roo t-days lllaxiiDWA lie an Runorr i n acre- fee t 

Oc t obe r ... . ....... . ........... . .... 1 , 809 . 7 1,140 0 .9 58 .4 No• e •be r ........ .... . . . . . . . . ........... . .. . 1,819 . 2 492 4. 2 60 . 6 Deoeab<l r ....... . . . .. ... ...... . ...... .. ..... 685 5~ 10 22 .1 

--- - --- Calendar year 1940 . . . . . . . . . . . . . . . . . . . . . . 80 , 809 . 3 11 , 800 .9 221 

-------

3,590 

3,610 

1 , 360 

160 ,300 

J anuary ... . .... . ... . . . ...... . . ..... . . . ..... 264.2 34 4 . 8 8 . 52 524 February ....... , . .............. . ... . ...... . 2 , 659 668 12 95 . 0 5,270 

March . ...... .. .• .. . .. • .. . . .. . .. .. . .. 12 , 4'76 , 4 4 ,'780 3 .6 402 24,750 

April. ....... . ... ... ....... ... ... . ...... 55,422 15 , 500 24 1 , 84? 109 , 900 May . ........ . . . . . . . . . . • . . . . . . . . . . . 90 ,493 1'7 , 500 1'71 2 , 919 179 , 500 

J u.ne ........ ... . ... w.... . ................. 58,238 9 ,020 154 , 1 , 941 115,600 July .. ........... .. . . . . . . . . • . . . . . . . . . . 19 , 088 1 , 980 122 616 37 ,860 August .. ............... . ...... .. .. ,.. .. .. . 13,297 4,310 28 429 26 , 3'70 

Septembe r . .......... . .................. . ... 1--s_, 1_o_s_l-___ 96_ot-__ s_7_.-

9

+-

1 

__ 1_7o _ __,r-_1_o_,_120_ 

Water year 194D-41 . . . . . . . . . . . . . . . . . . . . . . 261 , 354 . 5 1 '7 , 500 , 1 ?16 I 618 ,4.00 

a No gage-height reoor4; 4 1a obarge computed. on bash ot recorded range ln s tage and woather 

reoorda . c O.okwater trcn:a Elm Creek; 41eobarge oomputed rrom graph based on recorda for Elm Cre ek at 

Ba.ll i nger. t Fragmentary gage- height record; d.iacba.rge computed from partly estima ted gage height . 

g CCDputed trom graph baaed on gage rea4inga . 
98 COLORADo Rl VER BASIN 

Colorado River at Winchell, Tex. 

Location .- Water-stage recorder, lat . 31 °28'05" , long . 99°09 '45", on bridge on State Hi ghway 23, 0 . 3 mile south or Winchell, Brown County, and 6 .2 miles downstream from 

Home Creek . Datum or gage Is 1 , 264.86 reet above mean sea level , datum or 1929 . 

Dralnme area.- 24,580 square miles, or which about 11 , 800 square miles Is probably non- con rlbutlng . 

Records available' .- January 1939 to September 1941. November 1923 to September 1934 at site near Hllburn, 4 .2 miles downstream. 

Average discharge .- 12 years (1924- 34 , 1939-41), 869 s econd-reet. 

Extremes.- Maximum discharge during year, 32,700 second-teet May 23 , June 7· maximum 

gage height , 33 .64 teet June 7 ; minimum dlsch rge, 5 . 1 second-reet Oct. i8, 19 , 23 , 24 . 1923-34, 1939-41 : Maximum discharge, 76 , 100 second-r&et Oct. 15, 1930 , at s i te then ln .use (gage height , 51.8 reet, present si te and datum); no rl ow Aug . 8-10 , Sept . 1-5, 1929 , Aug. 15-25, 1934 . Maximum stage known, 62 . 2 reet Sept. 19 , 1936, present site and datum, at railway bridge 1,000 teet above present gage , according to Informat i on rum! shed by Oult , Colorado & Santa re Railway engineers. 

Remarks.- Records ~o d. Dl versions r or I rrl gatlon and mun1 c I pal use above station. now ---pifi'Uy regulate by reservol rs on Concho Rl ver. 

Discharge . in second-teet. water year Oc tobe r 1940 t o September 194.1 

Day Oct . Nov . Dec . Jan. Feb. Wa r . Apr . May Juno J ul y Aug . S.pt . 

1 1S 138 267 44 584 131 857 1,300 1 ,180 601 296 680 

2 18 88 173 4A 2'in 1~~ 656 3 ,090 5 , 210 548 364 656 

3 18 76 126 45 288 

~ 469 17,900 11 , 300 1,020 342 518 

4 15 69 104 45 1 , 150 306 27 ,600 !5,710 4, 910 246 425 

5 14 56 88 46 728 7 229 20 ~00 3 ,680 2 ,680 186 368 

6 14 50 79 44 570 8 184 9 , 550 11 , 300 1 , 650 151 311 

7 13 48 74 45 443 7 147 !4,020 25 ,400 1 ,180 128 219 

8 12 49 67 46 293 6 121 2 , 390 5 ,930 1 , 360 109 165 

9 9 . 8 63 62 46 194 t 106 1 , 680 !3,950 1 , 090 117 623 

10 9 . 0 90 59 46 143 91 1 , 370 3 ,390 1 ,740 1.10 803 

11 9 .0 69 62 45 119 ~ eo 2 , 130 9 , 440 2 , 030 123 509 

12 8 . 2 63 52 45 101 71 4,160 8 ,100 1 , 620 134 606 

13 6 . 7 76 59 49 86 6 64 2 , 2!50 ! 2 ,460 2 , 060 145 466 

14 6 . 7 91 220 48 76 4 52 1 , 440 1,400 1 , 300 159 386 

15 6 . 7 77 358 49 71 4 69 1 ,060 1 , 830 971 177 328 

16 6 . 7 64 326 49 67 4 4 , 630 728 

i~ :~~ 867 378 'in2 

17 5 . 9 56 288 46 54 5 12 , 500 553 614 496 602 

18 5 . 9 52 264 45 59 llC 15 , 500 438 7 ,720 412 368 1 ,120 

19 5 . 9 50 163 48 56 11C 9 , 440 389 3 ,860 909 262 52 

20 5 . 9 50 114 46 52 11( 4,820 798 2 , 000 531 186 630 

21 5 . 9 54 99 45 !56 ~~i 2 , 020 14 ,300 1 , 440 600 132 1 , 130 

22 5 . 9 59 eo 45 427 1 , 060 22 ,600 1 , 120 1 , 510 102 584 

23 5 .1 165 70 48 968 11 857 1 4 , 000 942 1 ,060 85 626 

24 5.1 143 60 48 739 11 823 4 , 650 830 680 1 , 550 425 

25 8 . 2 212 55 49 434 21 41 2 3 ,110 728 421 1 , 970 286 

26 224 866 54 48 426 

4, ~~ l , 070 3,570 7 28 !298 3 , 060 212 

27 1 , 260 884 52 46 217 7,7 8 , 120 3 , 620 12 , 100 ! 234 1,900 167 

28 622 562 48 H 166 6,6 15 , 700 2 , 790 1 , 530 435 2 , 230 13S 

29 306 438 46 40 3,~~ 8 ,160 3 , 060 942 803 5 ,950 117 

30 175 404 44 38 isc 1 , 860 1 , 930 575 666 1 , 600 101 

31 136 43 40 1,760 385 867 

Month Second- Maximum Minimum Mean Runoff in root-days acre-teet 

Octobe r ... . . ... . . , . .. .... , .. ....... .... 2 , 861 .. 6 1 , 260 5.1 92.3 5 ,680 November .. . .. ...... . .. . . .. . .. .. 5,162 884 48 172 10 , 240 Decembe r . ... . .. .. ... ....... .. 3 , 655 368 43 118 7 , 260 

Calendar year 1940 .. ... .. .... .... ... 236 , 219 . 6 20 ,400 6 . 1 645 468,500 

------- January . . . .. .... .. ....... 1 , 411 49 38 45 .5 2 ,800 

February . . . . . . . . . . . . . . . . . . . . . 8 , 812 1,150 52 316 17 , 480 

March . .. .... ... ...... ........ ......... 26 , 596 7 , 790 48 858 52 ,750 

April . . . . . . . . . . . . . . . . . . . . . . . . 88 , 284 15 , 700 62 2 ,94 2 175 ,100 

Way . ... .. ..... .. .... .. .... ......... .... . 178 , 426 27 , 600 389 5 , 756 353 ,900 

June . . . . . ............... . ......... ..... .. 159 , :595 25 ,400 575 5 ,313 31 6 ,200 

July ... . . . .... ........ .. ....... .. ... 34 , 975 4,910 234 1,128 69 , 370 

August . . .... ... ........ .... 23 ,803 5 , 950 8 5 768 47 ,210 

September .. .... 14,103 1,130 101 470 27 , 9'70 

Water yea r 1940- 41 547 , 483 . 6 27 , 600 5 . 1 1 , 500 1,086,000 

Peak diach.arae . - May 4 (4 

a .m. ) 32 ,700 aec .-ft . 

p .m. ) 30 , 700 sec . - rt . ; May 23 (12:30 ..... ) 32 , 700 eec . -rt. ; JUno 7 (4 

t Fragmentary gage - helgbt record; dis charge computed from partly estimated gage height. 
COLORADO RIVER BASIN 99 

Colorado RIver near San Saba , Tex. 

Location.- Water-stage recorder, lat. 31 °13'05", long . 98°33 '50", at bridge on State 

Hi ghway 190, 5 .2 miles downstream !rom San Saba River and 9.2 miles east o! San Saba, 

San Saba County. Datum or gage IS 1, 096 .22 ! eet above mean sea leve l , datum o! 1929. 

Draln~e area.- 30 , 600 square miles, o! which about 11 , 800 square miles Is probabl y non- con r ! outing. 

Records available.- August 1930 to September 1941. October 1915 to October 1922 at sl te near Chadwick, 1.2 miles upstream. October 1923 to December 1934 at sl te near Tow, 

44 miles downstream. 

Average discharge. - 16 years {1916-19 , 1920-22, 1930-41) , 2 , 022 se cond-teet . 

Extremes .- Maximum discharge during year, 42 , 600 second-teet May 6 (gage height, 26.18 

feet); minimum, 68 second-teet Oct. 24. 

1915-22, 1930-41: Maximum discharge , 224,000 second-teet July 23 , 1938 (gage height, 63 .2 teet, present sl te , based on tloodmarks at sl te then In use) ; minimum 

observed . 1.5 second-teet A~ . 22 . 23. 1918. 

Maximum stage known prior to 1938 , 58 .4 teet, presem; site , based on tlooctmarks at former site , Sept. 25, 1900 (discharge, 184,000 second-teeu. 

Remarks.- Records good . Dl versions above st;atlon t or Irrigati on and munl c l pal use . ----,:'Iii'i/partly regulated by reservoirs on Pe can Bayou and Concho RIve r, having a colllblned capac ity or 151 ,000 acre-teet . 

Discharge . 1n second-feet , water yea r Oc t ober 1940 to September 1941 

Da Oct . Nov. Dec . Jan . Feb . Mar. Apr. llay June July Au, . Sept . 

l 116 515 640 355 2 , 560 1,090 2 ,130 6 , 900 g2 , 550 1 , 780 714 1 ,460 2 113 522 570 366 6,310 930 1 , 5 40 5 ,700 2,080 1,5 40 600 2~ 

3 113 324 447 350 1 , 920 640 1 ,420 18 , 900 7,150 1 , 500 535 1 , 200 4 108 264 377 337 990 746 1,300 26,500 12,700 1 , 730 600 1 , 090 5 96 22'1 337 320 1 , 3'70 692 1 , 090 :n ,soo 7 , 640 5,130 560 960 

6 95 210 306 316 1 , 300 930 990 40 , 300 5,320 3 ,350 465 900 7 92 203 267 312 1 , 200 1 , 700 930 38 , 000 9 ,030 2 ,400 442 670 8 92 210 2'12 306 1 ,090 !1 , 130 8 40 1 6 , 900 22 , 200 2 , 0 40 409 785 9 90 2'12 260 299 900 !636 774 5 , 910 17,300. 1 , 950 381 612 10 65 363 249 291 785 465 730 !4,240 5 , 500 1,950 363 1 ,4 20 

11 62 377 926 263 686 419 615 ! 3 ,4 60 8 , 240 4 , 430 355 1 , 660 12 62 306 1 , 420 2'19 625 368 670 3 , 520 10,200 6 ,4<4.0 346 1,300 13 65 2'16 660 2"$ 5'75 359 660 5,230 12,200 2,500 485 1 , 260 14 85 234 530 283 535 576 465 3 , 570 .. ,620 2,600 605 1,160 15 62 217 2 , 660 296 495 585 570 2 , 700 3,240 2 , 060 616 1,020 

16 86 220 3,720 324 555 590 900 2 , 220 10, 400 1 , 740 520 960 17 90 22'1 1 , 350 306 615 605 6 , 020 1,860 t'l7 , 900 1 , 660 452 870 18 103 224 900 287 605 1,060 12, 900 1. , 620 15,600 1 , 360 660 990 19 90 210 719 2'16 595 1 ,:500 15 , 600 1 , 500 12,300 1 , 200 665 3 , 210 20 eo 206 615 264 595 ~20 14 , 300 1,380 6,190 2,500 555 3,760 

21 60 206 516 266 660 930 7,420 3 , 540 3,790 1,650 461 2 , 0 60 22 75 261 433 256 428 6 40 3,630 17 , 600 2 , 910 1,200 404 2 ,0. 0 

23 70 1,990 390 256 1 , 480 785 3,060 22 ,800 2 ,450 2.,050 400 1,380 24 70 9 ,420 366 260 3 ,890 812 3 , 500 25, 400 2 , 260 1 , 740 37 2 1 , 2JO 25 667 7 ,390 363 266 3,000 766 1,860 t'l l , SOO 2 , 000 1 , 340 964 1,160 

26 736 3 , 020 372 256 1 ,660 3 , 700 2 ,920 5,100 2 , 080 1 , 120 2 , 020 1,020 27 316 1,190 474 252 1 , 540 9 , 490 9 , 690 4 , 720 3 , 600 960 3 , 550 960 28 716 1,300 812 249 1 , 300 9 ,710 30, 400 4, 360 15 , 000 768 2 , 800 640 

29- 930 930 560 249 8 , 960 26 ,000 3 , 350 4,800 555 2 , 580 765 

30 730 706 437 249 4 ,150 17 , 400 g4 , 190 2 , 400 909 5,410 736 

31 466 377 252 2 , 700 g4 ,120 900 2 , 150 

Month Second- Maximu11 Minimum lie an Runott in 

root-da.ys acre-teet 

October . .. . . . . . . . . . . . . . . 6 , 942 930 70 224 13 , 770 Novembe r ... ..... .. . . . . . . ... .•...... 32 , 04 4 9 , 420 203 1 , 066 63 , 560 De c ember ...... .. . . . .. • • • • • 0 • • • • • • 22 , 358 3 ,7 20 249 721 44 , 360 ----r- Calendar year 1941 ·· ···· ····· ·········· 434,377 21 ,,00 70 1 , 187 861 ,600 

------- January ..... ........ .... ... ' .... ' .. . ~ ...... 8 , 922 366 249 266 17 , 700 

February . ... ·· ············ ··········· ···· ·· 38 ,464 6 ,310 426 1,374 76 , 290 

March .. .. ........ .. ......... ... 59 ,071 9 , 710 359 1 ,906 117 , 200 

April. ......•.....•.•..•..•.. · . • . . · .. · · · · · · 170 , 444 30 , 400 485 5 , 681 338 , 100 

May . .............•..•..... . .•. 328 ,890 40 , 300 1 , 380 10 , 6!9 652 , 300 

June ..................... ... ...•... . .... 233 , 650 22,200 2 , 000 7 ,788 463,400 

July ... . ......... . ..•................. 63 , 492 6 ,440 656 2 , 048 125 , 900 

August . ... . ............. . .......... . .. 31,661 5 , 410 3 46 1 , 021 62 , 800 

September . ..... . ... ····· · ····· ··· 39 ,126 3 , 760 736 1 , 304 77 , 610 

Water year 1940-41 ..... ········ · ···· · · 1 , 035 , 066 40 , 300 70 2 , 836 2, 053, 000 

P'eak dhchargo .- ApT'. 28 (1 2 m. ) 38 ,400 sec .-rt.; 26 ,700 eoc .-tt.; Juno 8 (10 p. m. ) 24,000 seo .-rt. May 6 (11 p . m. ) 42 , 600 eo c .-tt.; May 24 (12 m. ) 

r ?ragmentary gage - height record; c11echarge computed trom partly estlm&ted gage height. g C01nputed rrom graph baeed on one reading dally, turn1ehed by U. S . Soil Conserva tion Serv ice. 
100 COLORADO Rl VER BASIN 

Buchanan Reserve! r near Burnet, Tex . 

Location .- Selsyn Indicator, lat. 30°45 ' 05', long. 98°25 ' 00', at Buchanan Dam on Colorado 

Rlver, 1 mile upstream !rom bridge on State Highway 29 and 10 miles west or Burnet, 

Burnet County. Datum or gage Is at mean sea level (levels by Lower Colorado Rl ve r Author! ty); add 0 .48 root to reduce to mean sea level, datum or 1929 . Elevati ons hereIn are to mean sea level (unadjusted). 

Dra! nme area.- 31 ,250 square miles, or which about 11 , 800 square miles 1s probably non- con rlbutlng . Records available .- May 1937 to September 1941. 

Extremes.- MaXImum contents obse rv ed during year, 990 , 000 acre- ree t Mar. 24 , June 4; maxi- mum e levation , 1,019.9 feet June 4; minimum contents observed, 829 , 000 acre-teet Nov . 19-22 (elevation, 1, 012 .5 reet). 

1937-41 : Maximum contents , 1,004 ,000 acre-feet July 27, 1938 (elevation , 1 ,020 . 5 

reet; several Ta!ntor gates were open/; m!n!mum afte r !!ll!ng or reservoir !n July 1938, 596 ,000 acre-teet Apr. 5, 1940 elevation, 1,000 .5 f eet }. 

Remarks.- Reservoir Is formed by two reinforced concrete multiple arch sections, three 

---,;aru(S or Ta!ntor gates, and a 1,088-!oot reinforced concrete spillway section. Dam completed and storage began May 20, 1937 . Total capac! ty, 992 , 000 acre-t eet below elevation, 1, 020 .0 feet, top or spillway section . Usable capacitY; 955 , 000 acre-reet between elevations 937 .0 teet (sill or powerhouse penstock} and 1, 020.0 f eet (top or spillway section }. Water below elevation 937 .0 reet can be withdrawn through two 5-! oot emergency gates down to elevation or 890 .0 f ee t. r!gures g iven herein represent total contents. Recorda or elevati on as rurn~ shed are !rom readings at B a.m.; gage r ead hourly by power- plant operator. Water used ! or power development and Irrigation or rice on several districts below Columbus. 

Cooperati on .- Reco rds or dally elevation furnished by Lower Colorado R1 ver Author! ty . 

11ont.bl7 elevati on and c ootente , water year October 19 40 to Septe.ber 1941 

Date RleTation 

(feet)t 

0Gt. 31. , , , .. ,., . . ,. 1 , 013.62 NO"fo 30. .... ...... .. 1 , 016 . 28 

Dec. 31. ........ ... . _1..!.?!!! ·_!7 _ 

Contente (acre-teet) 

850 , 000 909 , 000 

_9~0 !.0<!5> _-

Ch&nge 1n content• during month (aor e -reet) 

- $4 , 000 +59 , 000 

- - - - .!_5h~- - . Ca l endar yea.r 1940 _ _ ___ _ _ _ _ _ _ _ _ _ _ ~2~ . .'~ __ 

Jan . :n. ... .... ... .. 17.6~ 937,000 - 23 , 000 Peb. 28 ... .•.. .. . . . . 1 ,019 .49 980 ,000 +4-3 ,000 J1 ar. :n.... .. .... . . . 1 , 0 19 . 31 976 ,000 -4,000 

Apr .. 30 . ... .. . . . . . . . 1 , 019 . 0 1 969 ,000 - '1 ,000 xa:r :n. .... .. ... .. . 1,019.07 971 , 000 +2 , 000 June :so.. . ..... .. . . . l ,Oli .46 960 ,000 ~9 000 

July 31..... .. . . . . . • 1 , 018 .60 960,000 - 20 ,000 Aug . 31.. . . .. . .. .... 1 , 017 . 29 931 ,000 -20 ,000 

Sept .:so . .. . ...... . .. 1_1::..:c,oc:1c;. 7..:.·•.:.o:_+---'-g.:.33:..:.:•ooo=--t-----:-;;•:::;2.:..,ooo ::=:----- water year 1940 -4.1 +20 ,.000 

t BJ.evat1on at 8 a.m . 

Marshall rord Reservoir near Austin , Tex . 

Location.- Mercury pressure gage, lat. 30' 23 ' 20' , long . 97°54'35' , In powerhouse at dam on Colorado River, 7.3 m!les downstream !rom Sandy Creek and 12 miles northwest or Austin, Travis County. Prior to Dec. 26 , sta!! gage at same site and datum. Datum or gage Is at mean sea level (levels by u. s. Bureau or Reclamation}; add 0.12 r oot to reduce to mean sea level , datum or 1929 . Elevati ons herein are to mean sea level. Dra !na~e area .- 37,900 square miles, or which about ll,800 square miles Is probably non- con rlbutlng . Records available .- September 1940 to September 1941. 

Extremes.- Maximum contents observed during period , 363,000 acre-reet June 9 (elevation, 

618 .0 reet} . ReMarks .- Records good . Reserve! r Is rormed by conc rete grav! ty-type dam. Storage began, -----sept":" 9, 1940, dam completed In ear ly part or 1942. Total capacity, 1, 950 ,000 acre- f ee t below elevation , 714 .0 reet , top or spillway . Usable call8C!ty, l ,Be9 , 000 acre- feet be tween elevations 552.0 reet (si ll or powe rhouse penstock) and 714.0 teet (top or spillway}. Water below 552 .0 reet can be withdrawn through 24 8i-root diameter 

Paradox gates down to elevation or 535 .8 reet . rl gures gl ven herein represent total contents. Records or elevation as furnished are !rom readings at 8 a .m. ; g!l-ge read 

hOurl y by power-plant operator . Wate r used !or power development and ! or I rr!gat!on or ri ce In seve ral districts below Columbus, Tex. 

Cooperation.- Records of dally elevation furni shed by Lowe r Colorado River Authority. 

Honth1T elevati on and oontenta water year October 1940 to Septe·aber 1941 

Date 

Sept . 30 

Oct . 31 Nov . 30 Dec . 31 

Calendar year 1940 

Jan . 31 .. .. . . . .. .. . Feb . 28 . .. . . . . ..•. • 11a.r. 31 .. . ..... . ... . Apr . 30 ... . .. ..... . llo.y 31 .. ... .. . .. .• June 30 ... . . ...... . .Tul-, 31 •.. . ... ... .• Aug. 31 •.. . ...... .. Sept .30 •.. .. . .... .• 

Water year 104041 

Elevation Contents ~~ . 1.n oon~•n~• ' 

(teet )t (ac.re - reet) d~!~= ~~~~~ 

550 . 7 

548 . 2 595 .5 

1- - 6_!5_o0_- - -

52 ,300 

47,800 

211 , 000 

3~9~ 

------ 614 .0 814 . 9 

614 .0 614.5 

613.0 614 .0 612 . 0 615 . 4 614 . 7 

3 31,000 

3~ 000 

331 , 000 335,000 

323 , 000 331 ,000 316 , 000 342 , 000 337 , 000 

-4,500 +16 3,000 

-- ~;_28_~~-

-8 , 000 +7 ,ooo -7 ,ooo +4 , 000 

- 12 ,000 +8 , 000 -u;,ooo +26 , 000 

-5 , 000 

t284 , 000 

t El.evat\ on at 8 a.m. 
COLORADO RIVER BASIN 101 

Colorado R1 ve r at Austin, Tex. 

Location.- Water-stage recorder, lat. 30°14'40", long . 97°41'20", at southeast edge ot Austin, Travis County, at Mon topol!s bridge on U. S. Highway 290, 2 .8 m!les upstream trom Walnut Creek, 3.8 miles downstream from Waller Creek, and 5 miles downstream 

from Barton Creek . Datum or gage ts 407. 3 teet above mean sea level, datum or 1929. 

Dra!n~e area.- 38,160 square miles, or whi ch about 11,800 square m!les ts probably non- con r1but1ng. 

Records available.- February 1898 to September 1941. U. S. Weather Bureau has collected 

gage-height records !n th!s v1c1n1 ty stnce 1903. 

Average discharge.- 43 years, 2, 780 second-teet. 

E:xtremes.- Maximum discharge during year, 47,600 second-teet (pa rtly regulated) Apr. 29 

(gage height, 18 .55 teet); m!n!mum, 464 second-teet Aug. 10 (regulated); m!n!mum dally, 702 second-teet Aug. 10 . 1898-1941: Maximum discharge, 481, 000 second-teet June 15 , 1935 (gage height, 45 .0 teet, present stte and datum, !rom tloodmark); minimum, 13 second-teet Aug . 18, 1918. 

Maximum stage known, 46.0 teet (revised) , present s!te and datum, July 7, 1869 

(ad Justed to present site on basis or records tor t lood or June 15, 1935), determined 

!rom !ntormatlon concerning stage at t erme r s! te turnlshed by Prot. T. U. Taylor. 

Remarks .- Records good. Flow partly regula ted by Marshall Ford and Buchanan Reserve! rs -----raee page 100 ) , and smaller reservoirs, having a combined capac! ty ot 3, 130 ,000 acre-teet. About 36, 000 acres Irrigated above station. 

Discharge, in second-teet. water year October 1940 to September 1941 

~ Oct . Nov . Dec. Jan. Feb . War . Apr . llay June ' July j Aug . Sept. 

1 1 ,050 1,500 1,450 1,920 5 , 600 2,820 8 , 500 ~9, 800 2 , 840 5,140 I 2,360 1,020 2 1,090 1, 460 1,HO ~.780 19,000 2 . 120 3 , 590 15,600 2,&40 4,550 1,850 1,170 3 1,260 1 ,950 1,510 2,770 9,040 ;!,770 4,370 17,000 2,700 4,700 1,080 1 ,280 4 .~ 60 1,860 1,640 1,660 5 , 020 ~.220 •eo 3:5 , 700 4, 740 4- , 250 1 ,630 1,410 

5 1,290 1,370 1 , 460 2,210 ~.ooo 3, 060 ~.9.50 39,300 10 , 100 3,720 1 , 900 ~50 

6 984 1,130 1, 360 2,010 2,060 6,920 4,120 40, 000 8,820 4,250 I 1,810 1 , 090 7 1.040 1,190 1. 3~0 2,260 2, 400 17.400 6,000 40 , 400 24,300 3 , 800 1 ,HO 1,690 8 1.120 1.~50 1, 410 ,~00 2,620 13.000 3 , 340 40,000 9 , 610 4,700 1 ,150 1,820 

9 1,150 1,720 1,270 2,040 4 , 060 4,770 2 ,460 28, 000 21,700 5, 320 1,0.:50 2 , 230 

10 1,170 2,040 1.~eo 2,020 5 , 000 6~0 3,070 10, 600 26,400 4,s50 I 702 1,700 

11 1,570 1,390 2,660 2,850 5 ,000 2,820 3,410 9,160 25,700 4,550 I 1,330 1,930 

12 882 1,690 2 , 150 2,620 140 3 , 460 3,950 9 , 420 17 , 200 4,400 1,250 1,810 

13 990 1 , 340 1 , 900 2 , 570 3,220 3,150 3,320 8,290 9,600 3, 950 I 1,290 2, 060 

14 1,100 1.~00 1,740 2 , 250 3,1l0 2 , 900 2,e10 4,260 7. :!80 5,130 l, ~90 1,750 

15 1,650 1 , 640 7,880 2 ,930 ~. 1~0 1 ,950 3 , 350 4,100 4,400 5,4oo I 1,090 2,040 

16 1 , 150 1 , 550 20,700 :s,g1o 2 , 860 1 , 240 3,640 6,7~0 7 , 440 ~:g~g I 1,120 2 ,380 

17 1,260 1,360 9,760 2,310 I 250 2 , 250 6,480 5,600 16 , 100 979 1 , 400 

18 1 ,260 1,360 7,000 e,g6o .~20 4,610 8,410 ~.700 17, 700 5,310 990 1,550 

19 1 ,400 1, 420 5,230 1 , 960 3,320 11,300 11 , 500 3,660 16, 800 4,700 1,720 1 , 710 

20 894 1, tgo 6,100 1,780 ~40 11,400 12.,900 8,110 14 , 500 4,250 1,630 1,350 

21 1,320 1 , 500 ~.690 2 , 650 3,340 s ,5go 11, 400 9,320 7,420 4,250 ! 1 ,820 1,150 

22 1,760 1,700 3,600 2,660 3,250 4 , 850 16,400 17,700 4, 400 4,850 1 1,320 1 , 540 

23 2 , 100 2,200 4,060 2 , 060 3,260 5 , 480 13,600 22,400 3 , 770 •• 700 I 1,420 2 , 420 

24 2,190 3,660 2,260 1,900 3,140 4,700 5,170 22,700 ~20 4, 700 1,010 2, 290 

25 1 , 920 2 ,360 2,970 1,870 3 , 960 3,080 6,220 22 , 700 6 , 160 5,000 1,120 2 ,470 

26 1, 610 1 , 670 2 , 740 a2,370 3,760 5,720 11,600 18, 000 5·,190 4,850 1,120 2,400 

27 950 1 ,630 ~.770 a2,180 3,310 11, 900 21,100 8 , 870 5 , 160 4, 400 1 , 860 2 ,600 

28 2,180 1·,480 6 ,410 &2,040 3,250 11, 700 35,800 4,250 4,500 3,800 2,100 1,770 

29 1 ,870 1,610 5,900 &2,~ - 11,400 45, 200 4,260 4, 660 2,820 1,870 2,060 

50 1 ,860 1,480 3,950 ol,?lO - 11,700 45 , 200 4,250 I ~.950 2,700 1,250 2,290 

31 1 ,120 - 3,3e0 al, 450 - 12,300 - 4,100 - 2,980 1,160 -

Month Second- llaJ<iiiWI llini•WI Mean RJmorr in root-dayo aore-reet 

Ootober ... ......... .. . . . . ... • .. . .... . ..... . 42 ,400 2, 10'0 882 1 ,368 84,100 

Noveaber .......... . ..... . .................. 49,170 3 , 560 1,130 1,630 97 , 530 

Deoeaber .. .... ................. ............ 120,260 20,700 1,270 3,880 238,600 

-- ----- ------ ------ ------ --- --- Calendar year 1g4o ...... ...... ..... ..... 756,826 28,100 248 2,065 1 , 499 , 000 

------- ------ ------ ------ --- --- Januar'}l ......................... . . . . · · · · · · · 72, 380 3,910 1 ,450 2.~~5 14~ 600 

February .. ..... . .......•. . ...... ..• .... . ... 118,660 19, 000 2,080 4,238 235,400 

March ... . ........................ .. . . ..... . 192,110 17,400 1,240 6 ,197 381, 000 

April .. . . . .... . , ....... 0 .. , •. , ..•• . • . o •• •• • 312 ,·540 46,200 2,460 10 ,420 619 , 900 

May . .. . .. . . ... .. . ""0 •o• • o•• .... . .. . . . .... 507. ~50 40,400 650 16, 370 1 , 006,000 

June ... . . . . . ...•.... . ..• . .•.. . ... .. ..•..•.. 299 ,320 26,400 2,540 9 , 977 593,700 

July . . . . ....... o • • o •• ,. o • • o •• o • • o ••• •••• •• • 1~9 050 6,010 2,700 4 ,486 275,800 

Aucuat . . . . . . . . ... ...... .. ..... . ........ . . . . 43,771 2 ,360 702 1,412 I 86,820 

Septeaber . . . . .............................. 6~,840 2,600 1,020 1 , 795 106,800 

later year 1040-41 ................. .... 1,060,871 45,200 702 6,~45 3 , 869 , 000 

.. !~r.1;iot·:::::r~~~ ~. {~ f3~3b :~~~. ~:;oo !~!.~~~ : :so (11 p.m . } 46,800 aee . -ttoJ May 7 (12:30 

oZO: !~ ~;~~;~!~~r re~~J p~!:~~~~t ~~~:: ~;e~~!!!, ~~~~~o~r~; ~.~·a~l~~=~~~~v~~ !~t~~~1~;~
102 COLORADO RIVE:R BASIN 

Colorado River at Smithvi lle , Tex. 

Location.- Water-stage recorder, lat. 30°01 ', long. 97°10 ', 1,200 teet upstream ! rom bridge on State Highway 7l at Smlthv!lle, Bastrop County, and 3.7 m!les downstream ! rom Alum 

creek. D&tum or gage Is 270.14 teet above mean sea level, datum or 1929. 

Dra lnme area .- 39 , 650 square m!les, or whi ch about 11 ,600 s quare miles Is probably non- con rlbutlng. 

Record s ava i lable.- July 1930 to Sept ember 1941. U. S. Weather Bureau has collected gage- height recoras In thiS vi cinity since 1920. 

Average discharge.- 11 years, 3,692 second-tee t . 

E:xtremes .- Maximum discharge during year, 93 , 700 second-teet June 8 (gags he ight, 24 .27 t eet); minimum, 633 second-teet (regulated) Oct . 22. 

1930-41 : Maximum discharge, 305,000 second-teet June 16, 1935 (gage height, 42.5 

teet, !rom noodmarks), by slope-area method; minimum, 76 second-teet Nov . 2 , 1934 . Maximum stage known , about 47.4 teet sometime In December 1913, according to ln!onna- tlon !rom local residents. 

Remarks .- Records good. Many diversions above station ! or Irrigation and munic i pal uses. at n same as that ! or Colo rado River at Austin . 

Discharge in s econd-reel wa t e r year October 1940 t o September 1941 

Day Oct . Nov. Dec. Jan . Feb . War . Apr . llay J une Jul y Aug . Sept . 

1 1 , 180 2,940 1,650 3 ,390 2 , 540 3 , 480 13, 400 47 . 400 4 , 700 4, 600 09 0 1 , 440 2 1. 240 1 , 900 1,580 2,600 12, 800 3,090 9 , 320 ~6. 600 3,820 5, 770 2,680 1,110 3 1 , 160 1 , 560 1 , 500 7~0 15, 500 2 , 620 5 , 970 27,200 2,740 ~70 2 , 220 1 , 140 4 1 , 180 2, 030 1 , 480 2 , 940 8 , 780 2 , 810 5, 770 29, 000 020 5 , 770 1 , 840 1, 250 

5 1 , 370 2,e80 1 , 550 2 , 220 5 , 570 3 , 320 4 , 500 37 , BOO 4, 500 4, 980 1 , 440 1 ,440 

6 l, 430 1 , 960 1,600 2 , 290 1 3 , 820 3 , 320 3 , 980 40 , 800 9, 450 4, 160 2, 220 1 , 480 

7 1 ,380 1,480 2 , 290 u:gl 2 , 880 9,850 4, 700 40 , 200 57, 200 4, 600 2 , 160 1 ,420 

8 920 1 , 270 1 , 900 2 , 620 15,800 5 , 770 40,200 59,600 4 , 160 2 ,420 1 , 260 

9 1, 130 1,360 1,350 2,550 1 2,740 10,100 3 , 980 40 , 200 16,300 4, 980 1 , 680 1 , 8 40 

10 1,150 1 , 730 1 , 320 2 , 220 3 , 980 5 , ~70 3 , 240 24, 000 24,700 5 , 770 1,360 2,030 

11 1 , 170 2,100 4. 710 2,100 5,170 160 3 ,320 15 , 700 41 ,400 5, 570 1 , 200 1 , 900 

12 1 ,300 1 ,960 19 , 000 2,550 \ 5,370 160 3 , 6 40 16,100 23 , 600 9, 860 1 , 190 1 , 900 

13 1,380 1 , 8 40 7 , 360 g:~~g l 3 , 560 . 730 4, 160 12, 100 17, 200 6 , 880 1 ,390 1 , 840 

14 1 , 030 1 , 440 3,620 3,390 3 , 390 3 , 980 9 , 910 11 , 600 4, 970 1 ,360 1, 960 

15 960, 1,390 ~0 5,930 3, 240 16 0 2,880 6 , 770 8 , 990 11 , 600 1 , 500 1,960 

16 1,500 1, 420 30,700 3 , 090 1 3,240 2 , 620 3 , 390 4, 980 7 , 630 9 , 260 1, 420 1 , 840 17 1,380 1 , 540 18, 900 3,900 3,020 2 , 290 3 , 820 7 , 630 12, 500 7 , 8 40 1 , 300 2 , 360 

18 1 , 260 1 , 5 40 10,000 3 ,390 3,160 7 , 290 6 , 470 7 , 630 17,100 5, 970 1 , 270 1 , 630 19 1 , 250 1, 380 7, 840 2 , 940 ~20 1~ 100 9 , 450 4, 700 17 ,400 5 , 700 1 , 080 1 , 730 

20 1 , 370 1 , 370 5, 570 2,290 3 ,390 13 ,900 11, 800 9 ,940 16, 000 5 , 170 1 , 310 1 , 520 

21 1 , 420 1, 480 4 , 980 1, 900 3 , 390 12 , 900 12, 900 9 , 08 0 15, 000 4, 600 1 , 900 1 , 720 22 910. 2 , 730 3,900 2 , 420 .39 0 7 , 630 11, 900 14, 600 11 , 100 4 ,160 1 , 670 1 , 520 23 1 , 460 10,700 3 , 560 2 ,480 820 6 , 170 2 1, 200 19, 600 6 ,670 4, 980 1 , 770 1 , 260 24 1,9001 6,750 4 , 070 2 , 220 5, 370 6,370 18 , 900 21 , 100 6,570 4, 790 1 ,480 2, 160 

25 2,360 16,100 2 , 620 1,900 4, 160 5., 970 8 , 300 21 , 100 6 ,370 4,790 1 , 4:40 2 ,480 

26 2,100 5 , 660, 2 , 740 1 , 770 4,320 4, 600 9,4.40 20,800 6 , 680 5 , 170 1 , 130 2 , 440 

27 2 , 030 2,6801 3 , 160 2, 220 4, 070 9 ,470 22, 300 15, 8 00 7 , 210 4, 980 1 , 160 2,480 

28 1 , 6801 2,100 3 , 980 2, 290 3 , 6 40 13,100 27,400 9,520 6,370 4, 500 1, 380 2 , 680 

29 1, 490 1,9001 5, 170 2, 030 - 13 , 100 43, 800 5 , 570 5,770 3 , 820 2,030 2 , 480 

30 2,030 1 , 730 5, 970 2 , 220 - 12, 600 49,400 5,170 5, 770 3 ,090 1, 960 1 ,840 

31 1 2,620 4 , 160 bl , 960 - 12,900 - 4, 980 - 2 ,680 1 , 770 -

Mon t h Second- Wa.x l mum Win.imum lleo.n Runott in t oot-days ac r&-feet 

Octobe r . . . .. ... .. ... . . . .. ... . . . . . . . . . . . . . . . 44, 7 40 2,620 910 l ; 443 88,740 No vember ..... . . . ... . . . . . ... ... . .. .. ....... 86,920 16, 100 1,270 2 , e97 172 ,400 December . ··· ·· ··· ··· .. . ..... ..... . ·· · ·· · .. . 177, 880 30,700 1, 320 5, 738 352 , eOO 

------ - - - ---- --- --- -- -- -- -- ---- Calendar year 1940 .. .. ... .... ..... ...... 970,333 46 , 900 418 2 , 661 1 , 925, 000 

---- - -- ------ ------ ----- - ------ J anuary . . . . . . .... .... . . . . . . . . . . . ..... ... ... 88, 660 9·, 660 1 , 770 2, 860 175,900 Feb ru.ary . ....... .. . . . . . . ..•..•. . .. . ..• ..•. . 130, 250 15, 500 2,540 4, 662 258,~0 

Warch . ... . . . . . . . . . . .. . . . . . . ... . .... . . .. .. . 220 , 370 15,800 2,290 7, 109 437 , 100 April ... . .. . . . .. . . .. .. . . ..... . . ... ......... ~3B ,eeo 49 , 400 2 , 880 11 , 300 672,200 

May . ............... .. ... . . . . . .. ········ · .. 604, 180 47 ' 4. 00 4, 700 19,490 1, 198 , 000 

June . ... . ... . . . . .... .. . ···•· ... .... ..... 435, 860 59 ,600 2 , 7 4.0 14,5'30 864, 500 July . .... .. ..... .... .. . . .... . .. . . . . . . . . . . . 170, 5 40 11, 600 2 , 680 5, 501 338, 300 August . . .. .. .. . . .... .. ...... .. ········· ··· 51 , 820 090 1 , 080 1,672 102, 800 

Sept embe r . .. . .. . . . .. . . . . . . . . . . . . . . . . . . . . . . 54, 100 2 , 680 1, 110 1,803 107,~0 

Wa t e r y ear 1940 -4 1 ···· ···· ········· ··· 2 , 404,200 59 ,600 910 6 , 687 4, 768, 000 

Peak dhcharae. - Apr. 30 (12:30 a . m. ) 50,800 aec . - rt.; June 8 (3 : 30 a.m. ) 93,700 aec . -1"toJ June 11 (1 p.m. } 45 , 000 aec. -rt . h C~puted f rom w1 ro-we l gb.t gage r eadi ng . 
COLORADO RIVER BASIN 103 

Colorado River at La Grange , Tex . 

Location.- Wire-weight gage, lat . 29°53'45", long. 96°52'15', on bridge on u. s. HighWay II In La Grange, F'ayette County , 1.2 m!les downstream !rom Buckner Creek. Datum o! 

gage Is 211 .23 teet above mean sea level, datum o! 1929. 

Drainage area.- 40,200 square miles, o! which about 11,600 square m!les Is probably non con tr! butlng . 

Records avallable .- July and August 1938 ( rlood, discharge measurements only}, November 

1936 t o September 1941. 

Extremes.- Maximum discharge obse rved during year, 104 , 000 second-teet June 6 (gage height, 25.6 teet}; mlnlmum observed , 646 second-teet Oct. 23 (regulated}. 1938-41 : Maximum discharge observed , 182, 000 second-teet June 30 , 1940 (gage height, 40 .16 teet} ; minimum observed, 430 second-teet Mar. 7, 1940 (regulated}. Maximum stage kno~n, about 56.7 teet probably July 9, 1669 (!rom marble high-water marke r In La Grange}. Data on other !loods are as !ollows: Dec. 5, 1913, stage 56.4 

teet, !rom tloodmarks (discharge not determined }; June 17, 1935, stage 50 .64 teet, !rom 

noodmarks (discharge , 255, 000 second-teet !rom rating curve extended as a straight line 

above 200, 000 second-teet}; July 27, 1938, stage 42 .95 teet, observed (discharge, 

200, 000 second-teet}. 

Remarks.- Records good. Gage read twice dally and oftener during periods or rapidly ---cnan&lng stage. Diversions above station tor Irrigation and municipal supply. Regulation same as that ! or station at Austin . 

Discharge in second-teet water year October 1940 to September 1941 

Da Oct . Nov . Dec . Jan . Feb . Mar. Apr . lla.y Juno J uly Aug . Sept . 

1 1, 240 6 , 830 2 , 020 4,700 2 , 840 4, 220 1:5,400 47, 00 5, 980 5,180 3 , 260 1 ,490 2 1 , 160 3,580 l,SSO 4 , 3SO 9,080 3 , 980 12,500 41 , 800 5 , 500 5 ,340 3 ,340 1 ,400 3 1 , 120 2 , 140 1,800 3, 020 18, 800 3, 660 6,400 36 , 500 3,900 5 , 660 2 , 660 1,200 4 1 , 120 2,230 1,690 4,220 11,300 2,950 7,000 29,100 5,500 5 , 660 2,260 1 , 280 5 1 ,160 18,600 1,690 3,660 7,000 3 , 580 5,980 39 , 000 4, 380 5, 980 1,860 1,280 

6 1 ,280 9 , 710 1,800 2 , 730 6,150 7 ,860 5 , 180 42,900 8. 770 4,700 2,520 1 , 360 7 1 ,280 2 ,590 3,660 3 , 100 4, 540 6,610 5 , 660 41 , 800 49,200 4, 700 3 , 020 l ,.f.40 8 1 , 20'0 1 , 690 3,580 2,880 3,600 15.700 5,820 41.800 94 , 200 4,380 2,660 1,400 9 914 1 , 580 1 , SSO 3 , 100 3,500 14,600 5 , 180 42,400 22 , 900 4, 540 2,390 1,440 10 1 ,080 1 , 540 1 , 640 3 , 100 3,740 7,510 4, 540 31,100 27,800 5,660 1, 740 1 , 690 

11 1,080 1,960 5,050 2 , 800 6,600 6, 180 :5,900 16, 200 58.600 6 ,320 1 , 540 1,960 12 1,120 2,800 27 , 000 2 , 730 5,980 3,980 4,060 22, 100 :55,400 12. 100 1,320 1,600 13 1,280 1,860 15,900 3,580 5,180 3,900 4,540 13,900 22,100 15,200 1 ,490 1 , SSO 14 1 , 160 1 ,800 6 , 320 10, 900 4,060 4,060 5 , 020 12 , 900 15, 600 12, 500 1 , 540 1 , 740 

15 1 ,080 1 , 490 11, 500 13, 500 :5,960 3 , 980 4, 060 8 , 040 12,000 10, 900 1, 440 1,860 

16 1 ,360 1 , 440 35,100 4,:580 3,820 3,820 3 , 820 6,320 10, 300 12 , 700 1 , 580 1,800 

17 1 , 360 1 , 540 22 , 100 4, 060 3 , 740 3,820 4, 060 7,610 11, 600 10, 100 1, 440 1,960 

18 1,160 1 , 640 13,400 4, 540 3, 500 6,430 4, 700 9 , :510 19 , 400 8 ,220 1,320 2 , 320 

19 1 , 120 1, 640 9 , 900 3 ,980 3,820 16,800 8 , 410 7,340 21,700 6,490 1 , 280 2 , 080 

20 1 , 120 1 , 440 9 , 500 3 , 580 3 , 980 16 , 800 9,900 7 ,390 19 , 400 6 , 320 1,200 1,580 

21 l , 240 1, 440 7 , 000 2. 730 3,980 14, 700 12,500 12, 700 16, 800 5,660 1, 540 1 , 5 40 

22 1,200 1,680 5,660 2 , 460 4,060 9 , 760 19 , 200 12,400 12,900 4,860 1, 640 1 , 540 

23 921 8 ,300 4,860 2 , 950 4, 700 7,000 27, 400 24 , 100 9 , 500 5,180 1,690 1,440 

24 1, 540 24 , 200 5,020 2,950 7,340 6,320 29,800 25 , 000 6 ,490 5, 180 1 , 540 1, 440 

25 1 ,800 41 , 000 4.700 2,590 6,820 6 , 830 11,500 24,600 6,150 5, 500 1 , 440 2,260 

26 1 , 800 12 , 600 6, 340 2 ,390 4.860 6 . 150 9 , 490 24 ,600 ? , 1?0 5,340 1, 320 2,320 

27 1,800 5,020 6 , 830 2, 620 6,020 7 ,510 20,100 21 ,300 7,000 5,500 1 , 240 2 , 520 

28 2, 220 3 ,180 5, 980 2 , 730 4, 540 11,800 26 ,400 13,200 7,340 5,020 1,240 2 , 520 

29 7 , 950 2 ,460 5. 500 2,660 - 12,900 39,000 7 , 680 6,~0 4,540 1 , 080 2 , 950 

30 2,960 2 , 140 7, 340 2,460 - 13, 200 50, 000 6 ,660 5, 980 3,980 1 , 280 2 , 200 

31 6,760 - 5 , 660 2 , 590 - 12,700 - 6,320 - 3,100 1,640 -

llonth :iecond- Ma.xiau. Miniau.a lie an Runoff in toot-days acre-fee t 

Ootober . ........ ~ . ............•.... . ....... 52,575 7,950 914 1 , 696 104,300 

Noveab'8r ... . . . . . . .. ..... .... .... . . . . , .. .... 169,920 41,000 1 ,440 5,664 337,000 

Deceaber ...... . ... ..... .............. ...... 241,160 35,100 1 , 540 7 , 779 478 , 300 

-- ----- ----- - ------ -- -- -- --- --- Calendar year 1940 . . . . . . . . . . . . . . . . . . . . . . 1 , 300, 309 124 , 000 457 ,5~ 2 , 579 , 000 

------- ------ --- -- - ------ ------ January ....... . ... . . . ... . .... . • . .... . ... . .. 117, 970 13, 500 2 , 390 3,805 2.:54 , 000 

February .... ... . . . .. .. . .... . . . .......... . .. 154,330 18, 800 2 , 840 5, 512 306, 100 

March . ........ . ... . . .. • .... . . ...... . ... .... 248,210 16, 800 2,950 8 , 007 492,300 

April ..... . ... . . . . .•..• . .•.. . .• ..•• . •.. .... 371 ,520 50, 000 3, 8 20 12, 380 736,900 

lla.y . ...... ... ...................... . .... . . . 683, 270 47 ,300 6 , 320 22, 0 40 1,355, 000 

June . ..... . ... •. ........... . . . . . ..... .. .. . . 540,390 94,200 3 , 900 18,010 1 , 072 , 000 

Jul y ............. . ... . .......... . .... . ... . . 206,610 16, 200 3 , 100 6 , 662 409,600 

August .... . ..... .. .... .... .. .. ... ........ 65,510 :5,340 1 , 080 1 , 791 110 , 100 

Septeeber ........ . . . . ... .... ........... .. 63 , 870 2 ,960 1,200 1,789 106 , 500 

Water year 1940-41 .... ..... ........... .. 2 , 895,035 94 , 200 914 ? , 932 5,742,000 
104 COLORADO RIVER BASIN 

Colorado Rlve r at Columbus, Tex. 

Loca tion.- Wate!'-stage recorder, lat. 29°42 ' 20', long . 96°32 ' 05", on bridge on U. S. 

Highway 90 at eastern edge of Columbus, Colo redo County, 340 teet downstream from 

Texas & New Orleans Railroad bridge and 2.6 m!les downstream rrom Cummins Creek . Datum or gage !s 155.57 teet above mean sea level (preliminary figure) . 

Drainage area.- 40,840 square miles, of which about ll,600 square m!les !s probably non con tr!butlng. 

Reco rds avallable.- January 1903 to December 1911, May 1916 to November 1930, May 1939 to Septembe r 1941. September 1930 to June 1939 Rt site near Eagle Lake, 23 miles down- stream. u. S. Weather Bureau has collec ted gage-height records In th!s v!c!n! cy s ince 1903. 

Average discharge .- 23 years (1904-11 , 1916-30, 1939-41), 3,428 second-teet. 

E:xtremes.- Maximum discharge during year, 136{000 second-teet Nov . 24 (gage height, 35.40 

f eet) ; m!n!mum, 1,050 second-feet Oct . 24 regula tee!) . 1903-11 , 1916-30, 1939-41 : Maximum c!lscharge, 152,000 second-teet July 1, 1940 

(gage height, 36 .2 teet·); min imum observed , about 60 seconc!-test Sept. 9, 10, 1910. 

Maximum stage known, 41.6 teet , present c!atum, !n JulY 1869 anc! on Dec . 6 , 1913, according to Information tum Ishee! by local reslc!ent. R1 ver ell vldsc! each time anc! 

lett Columbus on an !Blanc!. Data on othe r tlooc!s are as f ollows: June 16, 1935, 

stage 36.5 teet, present c!atum, tum!shec! by U. S. weathe r Bureau (c!!scharge 190,000 

second-teeti computec! on basis or records for station near Eagle Lake, 23 mlies downstream)· Ju y 29, 1936, stage 38.4 teet, present datum, furnished by U. S. Weather 

Bureau {c!lscharge, 175, 000 second-teet, computed on basis or records tor stati on nea r Eagle Lake) . 

Remarks.- Records fair. Diversions above station tor Irrigation and municipal supply . ~atlon same as that for station at Austin. 

Discharge , in second-teet, water year October 194.0 to Septe11ber 1941 

DaJI Oct. Nov . Dec. Jan . Feb. War . Apr . May June July Aug . Sept . 

1 gl, 460 9,770 2 , 550 4, 660 2,810 4,050 ~. 100 44,800 6,220 6 , 030 3,140 1,930 2 g1,~10 4,470 ,~50 4, 060 S,820 3,810 1~ . 400 4~. 600 5,690 4,920 .~60 1,660 3 g1, 270 2.800 2 ,160 3,580 17,200 3,680 10 ,300 4S, OOO 4,920 5,690 3,250 1 , 500 4 gl,310 2,020 2,060 ~.690 13,900 3,140 6,~50 s~4. 600 4, 170 5,690 2 , 810 ,~40 

5 g1, 270 19,900 1,980 ~.690 S,800 2,S10 6 ,220 g40,600 4,660 5,690 2,550 ,~4 0 

6 g1 , 270 20,200 1,980 3,140 6 ,980 6,890 4,2QO g44,000 4,790 5,520 2 ,350 1,460 7 g1,340 4,900 2, 330 2,760 6 , 080 18,800 4,290 g42, 400 coo 4, 410 6,470 1,680 8 g1,340 2,450 4,170 2,920 4,170 1~. 600 4,790 g4l, 600 86,100 4,660 4,590 1, 680 9 gl, 270 1,9~ 3,050 2,760 3,470 16,500 5,620 40,400 43,900 4, 410 3,360 1,680 10 gl,l60 1,750 2,020 2,920 3,470 10,500 4,170 37,600 23,700 4,790 2,600 1,750 

11 g1,2~0 1,990 6,410 2,760 4,050 7,170 3 , 810 22., 400 54,000 12,900 2,060 1,930 12 1.,230 2,650 ~5,800 2,500 6,220 4,790 3,690 23,100 43, 600 20, 000 1 , 880 2,060 13 1,230 2,~00 2S, 900 2,550 6,690 4,290 4,050 18,800 22,900 21,200 1,660 1,840 14 1,380 1,700 10,900 16,000 4,280 4,5~0 4,530 15,600 18,000 22,100 1 , 840 1,930 15 1,270 1,620 15,800 14,~00 3,6SIO 4, 410 4, 790 12,400 14,000 12,200 1,800 1,840 

16 1,160 1,420 27,600 7.,600 ~.690 4,170 ~.690 8,180 14,000 14,600 1,800 2,060 17 1,120 1,~80 24,~00 4,410 690 4,050 3,810 6,980 12,800 11 ,800 1,S40 1, 9ZO 18 1,420 1,420 17,100 4,530 ~.690 6,850 4,170 9,960 16,600 9,210 1, 660 2,110 19 1,~10 1, 420 11,100 4,410 ~.~60 16,700 5,870 9,690 20,700 6,790 1,660 2,160 20 1,270 1,680 16,800 ~.810 ~.690 21.100 8,730 6,600 19,400 6,220 1,540 1,660 

21 1,270 1,310 9,760 ~.~o 3,S10 16,700 20,100 12,400 20,400 5,860 1,500 1, 620 22 1,340 1·3'0 6,790 2,810 ~.690 14,000 23,100 13,200 17,000 5,220 1,880 11660 23 1,270 1,9~ 6,070 2,920 4,~20 9,460 38,700 20,400 12,800 4,660 1,880 1,620 24 1 , 160 75,300 4,~o ~.14o 8,250 7,&90 40,800 22 ,~00 8,SSO 5,370 1,9~0 1,540 25 1,540 79,400 4,790 ~.o~o 7,200 7,170 18,600 2~ .000 6,0~0 70 1,700 1,620 

26 1,880 28,800 4,470 2.700 4,950 6,600 9,690 2~,000 8,780 6,220 1, 660 2,300 27 2,020 9,370 10,200 2,500 4,410 7,860 20,300 22,~00 12, 000 6,~70 1 ,500 2,250 28 1,980 4,720 6,450 2,600 4 ,410 11,600 27 ,600 18,200 8,490 5,620 1 ,4.20 2,400 29 14,700 3,360 4, 790 2.S10 - 13,400 3~,800 11,500 7,170 4,920 1 ,460 2,500 ~ 6,0QO 2,920 ..5,660 2,650 - 13, 100 44,700 7,~80 6, 4.10 4,290 1,840 2,650 31 4,760 - 6,S10 2,550 - 12,200 - 6,600 - ~. 10 2,060 -

llonth Second- llaxiJDua W1n1au.m lie an Runott in toot-days acre-teet 

Ootober .. ... .• . .. . . ..........•.. , . . , ... .... 63,630 14,700 1,120 2,06~ 126,200 Noveaber ........ ..... ... ..•..•.. . . ... • . .... 295,920 79 ,4.00 1,310 9,864 686,900 Oeoeaber ............ .. ....... .. .......... .. 287,680 36,800 1,980 9,280 670,&00 ------- ------ ------ --- --- ------ Calendar year 1940 ... .. ..... ........... 1-.640,373 142, 000 506 4,209 3,066,000 

------- ------ ---- - - -- ---- ------ Janu&T'J ........ ..... ..... . •.. • .. •. ••. •. .. 127,110 16,000 2,500 I 4,100 262,100 

rebruary . ......... . . .. ....•.. . ...... .. . .... 167,790 17,200 2,810 5,~5 s1~,ooo 

llaroh ................ . ........ . . . . . . .. , .... 280,~10 21,100 2,810 

I 

9,042 566,000 

April ..... . ... ...... .. . . ........ , ... . ...... ~96,960 4.4, 700 ~.690 13,200 785,400 

llaJ •.... . . . ....•. .•..•.. . .•... . .•..•. .. .. . . ~~:~g 48,000 6 ,600 23,540 1 •'47,000 June ... . ..... .............•.. .. ............ 86 ,100 4,170 18,590 ltl06,000 

July . ... ..... ... ... ... ... ....... ........... 244,440 22,100 3,810 7,886 484,800 

August . .... .. . . . . . . . . . . . . . . . . . . . ........ ... 70,050 5, 470 1 , 420 2,260 13S,900 

Septeaber .... .. ........... .. ········ ·· ····· 56,400 2,660 1,340 1,8,7 109,900 

Water year 1940-U . . . . . . . . . . . . . . . . . . . . . . 3,266,490 86,100 1,120 8,947 6,477,000 

Peale d1acharge.- lfoY. 2 ' (5:30p.m.) 136,000 eec . -tt.J June 8 (9 p.m.) 89,600 eeo.-tt.J J\me 11 

(1 p. m.) 60,800 eec. -t·t. g COWiputea rrom graph 'baaed on gage readlna• turnlebed by 0. s. Weather Bureau. 
COLORADO Rl VER BASIN 105 

Colorado Rl ver at Wharton, Tex. 

Location.- Wire-weight gage, lat. 29°18'30", long. 96°06'15' , on bridge on u. s. Highway 96 in Wharton, Wharton County, 1,000 teet downstream !rom Texas & New Orleans Railroad b ridge and l2 miles upstream !rom Jones Creek. Datum or gage Is 65.42 rest above mean sea level, datum or 1929. 

Drainage area. - 41,150 square miles , or which about 11 ,800 square miles Is probably non con tr! butlng . 

Reco rds available.- July 1916 to September 1925, July and August 1938 (flood, discharge measurements only), October 1938 to September 1941. U. S. Weather Bureau hae collected gage-height records In this vicinity since 1935 . 

E:xtremes .- Maximum discharge observed during year, 92,000 second-teet Nov. 26 (gage height, 35.30 teet); minimum observed, 915 second-teet Aug. 22 (arrected by pumping). 

1919-25, 1938-41 : Maximum discharge observed, 100 ,000 second-teet July 3, 1940 

(gage height, 35.99 t ee t); no now Aug . 6 , 1925 (a ffected by pumping). 

Maximum stage known , 38.9 teet, present datum, Dec. 8 , 1913, according to Information rumlshed by local resldentsi· below Wharton floodwater combined wl th floodwater or Brazos River. F'lood or about July 2, 1869, reached about same height. F'lood o r June 20, 1935, reached a stage or 38.2 reet, present datum (discha rge, 159 , 000 second-teet, !rom rating curve extended a bove 145,000 second-teet), rumlshed 

by u. s. Weather Bureau. F'lood or Jul y 30 , 1938, reached a stage or 37 .4 reetj present 

datum, observed by Geological Survey engineers (discharge, 145,000 second-teet . 

Remarks.- Records !air. Diversions above station !or I rrlga tlon and munl cl pal supply . --,regu!atlon same as that !or station at Austin, Tex. 

Cooperation.- Gage-height record collected In cooperation wl th the u. s. Weather Bureau. 

Discharge , in second.-teet . water year October 1940 to Septeaber 1941 

~ Oct . Nov. Dec . Jan. fob . Mar . Apr . May June July Au& . Sept. 

1 1, 670 6,600 3,890 7 , 120 3,120 4,660 12, 500 46,800 6 , 060 7,120 3,980 1,~0 

2 1,640 9,420 3,640 6,680 3,820 4,260 12, 900 46 , 800 5, 700 6,570 3,620 1,830 3 1,480 5, 700 3,200 4,aso 11,100 4,070 12,900 47,100 6,2&0 5,700 3,710 1,640 4 1,370 4 , 260 2,940 4., 450 18,600 3,890 9,800 48 ~00 4,450 6,310 3,540 1, 410 5 l, 370 7,2o&O 2,780 4,450 13,300 3, 620 7, 260 39, 300 3,900 6,820 3,200 1,190 

6 1 ,340 27,300 2,600 4, 460 S, 170 3,540 6,440 44,300 4,250 6,820 2 ,940 1,160 

7 1,340 16,000 2, 600 3, 98" 7,260 16,800 6,700 44, 100 7 ,340 5,680 3,0&0 1,220 8 1,410 6,900 2, 860 3,620 6,180 13, 900 5, 700 41,800 38,400 4, 750 7,6&0 1,410 

9 1, 450 3,890 4,1150 3,710 4,660 15,400 5,S20 41,200 59 , 800 4 , 060 5,630 1,640 

10 1 , 410 3 , 200 3,620 3,640 3,980 14,700 6,180 40,600 42 , 200 4,6f)0 <,070 1,760 

11 1,220 2,940 2,940 3,620 3,S90 8 , 490 6 ,060 M,900 29,600 6,260 3,370 1,870 12 1,260 3,0&0 14.800 3,540 4,250 6,440 4,460 19,600 49, &00 23, 800 2,690 2, 030 13 1, 300 3,620 39,300 3,370 5.150 6,060 4,160 20,SOO 40 , 700 21 , 000 2, 350 2, 190 14 1,&00 3,460 27 , 200 6 , 120 5,360 4, 560 4,250 14,200 23,400 27 ,100 1,950 1,990 

15 1,370 2,860 13,700 17,000 4,460 4,650 4,550 12,200 16,000 18,700 1,670 2,030 

16 1,410 2, 690 27 , 000 14 ,400 .,070 4,650 4, 760 9 ,330 13,100 13,700 1,480 2,690 17 1, 220 2, 520 31,900 7, 220 3,980 <,650 4,070 6,670 13,900 14, 800 1 ,300 2,690 

18 1,160 2,360 24,300 4,950 3.890 5,940 3, 9SO 6,180 12,700 12,000 1,300 2,350 

19 1,4&0 2,350 17,000 4,850 3,890 13,200 4,260 8,010 17,300 9 ,690 1,220 21190 

20 l, 450 2,440 15, eoo 4,750 3,800 23.700 5 , 770 7,400 19,300 7, 700 1 , 160 2,440 

21 1,370 2,350 17,90C •• 350 3,980 22,300 9,720 6,180 19,300 7,120 1, 080 1, 910 

22 1,340 2,270 10,600 3,890 3,9SO 16,900 26,100 11,100 19,300 6 ,440 94S 1,790 

23 1,4&0 2,270 7, 400 3,540 3,980 12,200 34,700 12, 700 15,000 6,700 1,190 1,1HO 

24 1,460 13,200 6,060 3, 4150 5,940 8,820 44,700 19,300 11 , 800 5,050 1,620 2,110 

25 1,220 63,300 5,580 3,620 8,010 7,560 39,600 20,100 8,490 6, 360 1,620 1,870 

26 1,520 84,400 5,700 3,540 6, •4o 7 ,550 18,800 20,600 8 ,170 5,2&0 1,480 1,960 

27 1,870 36,400 7,:5.00 3,280 6 , 0&0 6 , 980 14,200 20,600 13,400 5,260 1 , 340 2 , 440 

28 2. 110 11 , 200 11 , 000 3,120 4,'160 8,170 24 , 600 1S,SOO 12, 100 5,360 1,340 2,520 

29 3. 730 I 6. 260 6,980 3,120 12,200 28,400 13,700 9,160 5,360 1,160 2,600 

30 12, 800 4,660 5, 820 3,280 13, 100 38,800 10,300 7,850 5,050 1,160 2,690 

31 6,460 6, 700 3,200 12,900 6,840 4, 6&0 1,seo 

Month Second- Wa.xlaua Wlnimua Moan Runoff in toot-days acre-teet 

Ootober .... .. .. ...... . ...... . .• ... . ... .. 62,940 12,800 1,160 2,030 124 , 600 

Noveaber ... ........ . .... . . ·• · ··········· 343,060 84,400 2,270 11,440 680 ,400 

Deceaber ... .................... .. .... ...... 336,970 39,300 2,600 10,870 668,400 

-- ----- Calendar year 1940 ............. .... ... .. 1, 557 , 908 90,600 

- 4, 267 3 , 090,000 

---- --- January ... .. . .... . ... . .. . . ....... . . .. . ..... 163,970 17. 000 3,120 4,967 305,400 

February . . . . . ... .... ...... . ... . ........ . .. . 166,040 18, 600 3,120 I 6,89. 327,400 

March .. ....... . .. . . .. . .. ..... . ...•. . ...... . ~~:~~g , 23,700 3 , 540 9,507 584,&00 

April. .. ..... . .. . .... .... ............. . . . .. 44,700 3, 980 13,670 813,200 

May . . ...... . . . . ...... . .. . ... . . .. . . .. ....... 741,710 48,300 

~:~:~l 23, 9 30 1, 471,000 

June . . . . . . . . . . . .. . ... . ... . .... . .. . ....... . . 637.400 69,800 17 ,910 1,066, 000 

July ... . .............. .. ... , ... ............ 272,610 27,100 4 , 650 8 ,794 540 , 700 

August .. . . . ........... . ........ . .... 74,158 7,650 948 . 2,392 1.7,100 

September . . ........ . .... . ..... ... .......... 59,500 2,690 1,160 1,983 118,000 

Water year 1940-41 ' . . . . . . . . . . 3 , 462,068 84,400 94s 1 9 , 468 6, 847,000 
106 COLORADO RIVER BASIN 

!:lm creek at Ballinger, Tex . 

Location .- wate l'-stage r ecorder upstream from spillway or masonry dam, lat. 31 °45 ' 00" , l ong . 99°56 ' 50', In Ballinge r, Runnels County, l t miles upstream f r om mouth . Datum ot gage Is 1,617 .72 teet above mean sea level, datum or 1929 . 

Drainage area .- 458 square miles . 

Records available .- Ap r il 1932 to September 1941. 

!:xtremes .- Maximum discharge during year, 12, 200 second-teet May 21 (gage height, 7.96 t ee t); no flow a t t imes . 1932-41: Maximum discharge , about 26,100 second-t eet Sept. 3 , 1935 (gage height, 10 .30 tee t, trom tloodmarks, probably sligh tly attected by backwater from Colorado 

Rive r), trom rating curve extended In a straight li ne above 15, 000 second-teet; no now at times. 

Remar ks.- Records good except those t or perlo( or no gage-helgt.t rsccrd and 

-so-second-teet, which a re poor. Stage-discharge relati on a t tec ted below 

second-teet by wind a ction and occasional accumulation or drift on dam . attected by diversions to Ballinger City pumping plan t. 

those below 

about 50 

Low now 

Discharge. i n second-feet, water year October 1940 to September 194..1 

Da Oct. Nov . Dec . Jao . Feb . War . Apr . llay June July Aug . Sept . 

1 0 0 .1 7.0 2 .5 1.0 27 455 11 0 4.5 

2 0 0 45 2.5 .7 866 2 , 590 37 0 2 . 5 

3 0 0 4.5 1.2 0 5 , 760 378 52 0 1 .0 

4 0 0 4 . 5 0 0 314 99 16 0 .2 

5 0 0 2 . 5 0 0 202 263 11 0 0 

6 0 0 1 . 0 0 0 99 1 , 880 7 .0 0 0 

7 0 0 .1 0 0 66 5e4 2 . 5 0 0 

e 0 0 0 0 0 39 90 2.5 0 0 

9 0 0 0 0 0 27 45 2 .5 0 45 

10 0 0 0 0 0 65 1 , 580 2 .5 0 eo 

11 0 0 0 0 0 21 1 , 150 36 0 16 

12 0 0 0 0 0 16 117 16 0 7 . 0 

13 0 0 0 0 0 11 52 7.0 20 4 . 5 

14 0 0 0 0 0 7.0 45 4. 5 4.5 2 .5 

15 0 0 0 0 1 , 670 4.5 52 2.5 2 . 5 2 . 5 

16 aO 0 0 0 507 4.5 3 , 910 2 .5 1.0 11 

17 aO 0 0 0 45 4 . 5 534 1.5 .2 4.5 

1e aO 0 0 0 732 77 99 1. 5 0 2 .5 

19 aO 0 0 0 2 , 210 137 59 1.5 0 2 . 5 

20 aO 0 5 61 0 425 52 45 1.5 0 2 . 5 

21 aO 0 96 0 52 6 , 250 33 1.0 0 2. 5 

22 aO 0 33 0 27 1,070 27 .6 0 1.6 

23 aO 0 39 7 .7 7 . 0 137 27 . 2 0 1. 0 

24 &3 . 6 0 74 56 7 . 0 74 106 0 .2 1.0 

25 a4.26 0 27 45 4 . 5 45 59 0 112 1.0 

26 a74 0 7 . 0 438 69 33 27 0 27 .6 

27 11 0 4 . 5 90 776 27 362 0 11 .2 

28 4.5 0 4.6 21 1 , 820 21 74 0 425 0 

29 2.5 0 4.5 166 16 21 0 127 0 

30 1 . 0 0 1 •. 5 59 11 11 0 27 0 

31 0 1.0 11 0 7 .0 

Month Second- Ma.ximua Wini111ua lleao Runoff in toot.-days acre-feet 

October . .... .... .. ....... ~ .. . .. 0 0 0 0 0 November ........................ . • ..•..... 521.5 425 0 17.4. 1 , 030 December . . ........ .. .....• . ...... . . .1 .1 0 .003 .2 - ------ Calendar year 19 40 .... ....... .... ....... 15 27~ .5 3 , 540 0 41. 7 ~0,290 

------- January . ... . .. ............. .. ......... ..... 0 0 0 0 0 February ..... . ........ ................ 910.6 561 0 32 . 5 1 , 810 Maroh . ......... .... ..... ............. 670 .9 43e 0 21. 6 1 , 330 April ...........•. .. ....... .. ...... 8 , 579.2 2 , 210 0 286 17, 010 llay . ....... . .... .. ·· ······ ···· 15,494.5 6 , 260 4. 5 500 30 , 7~0 

Ju.ne .. . . .... 14 , 764 3 , 910 11 492 29 , 280 July . . .. .. ........ ...... .. ...... 220 . 3 52 0 7 . 11 437 August . . . ... ......... 764 •• 425 0 2 4.7 1,520 

September .. ····· ·· ········· 196 .5 e o 0 6 . 55 390 

Water yea r 1940-41 42,121.0 6 , 250 0 115 40 

Poak d heharge. - Apr. 19 (1 a. ~ 5 , 890 see .- rt .; llay 3 (3:30 ··"·l 9,~~0 see. -rt. ; ... 21 (12 m. ) 

12,200 aee . - t€. ; June 2 (1:30 a. m. 7 , 920 aoc . -rt.; June 16 {10 a.m. 7 , 270 sec . - ft. 

. No gage - he i ght record; dlacharge computed on basis or recorded rengo 1n stage , engineer ' a notes, 

end weather rocoros . 
COLORADO RI VER BASIN 107 

South Concho River at Christoval, Tex . 

Location.- Water-stage recorder and concrete control, lat. 31°13 ', long . 100°30', at Panhandle & Santa re Rallway bridge at Chrlstoval , Tom Gr een County . Datum or gage ls 2,010.22 rest above mean sea level, datum or 1929. 

Drainage area.- 434 SQuare mlles . 

Records avallable.- February 1930 to September 1941. 

Average d!scherge.- 11 years, 60 .4 second-rest. 

!:xt,:;'[~!~u;;; ~~~~e~~~~~~e during year, 1, 980 second-teet May 3 (gage height, 5 .05 rest); 

1930-41 : Maximum discharge, 100,000 second-teet July 23, 1938 (gage height, 21.95 

reeti !rom floodmarks), rrom rating curve extended above 9,000 second-rest on basis or s ope-area det~rm!na !on at gage height 20.5 !set; m!nlmum, 2 .1 second-t eet July 17- 19, 26-29, Aug. 28 to sept . 5 , 1934 . rlood or Aug. 6 , 1906 , reached a stage about 1.1 teet hi gher than flood or July 23 , 1938, at a po int 0.5 mlle downstream !rom gage , accordlng to lntormat!on furnished by local residents . 

Remarks.- Records good except those tor periods or no or doubtful gage-height record In 

----;mneand July , and those above 60 second-teet, all or which are poor. Low flow materially atrected by diversions o! South Concho Irrlgatlon Co . •s canal 600 reet ups~ream. 

Discharge , in second-feel, water yea r October 1940 t o September 194.1 

Day Ocl . Nov . Dec . Jan . Feb . Wa r . Apr . Way June J uly Aug . Sept . 

l l4 10 l~ l~ le 18 33 ~0 43 a28 2<1 27 2 l4 10 13 1~ 20 17 ~3 167 41 28 22 27 

3 13 alO 13 13 20 17 33 664 40 28 22 24 4 13 alO 13 l~ 18 17 3<1 55 38 27 22 2<1 ~ 13 dO 13 l~ 18 17 4 ~ 38 a28 22 25 

6 12 all l~ 1~ 18 17 3 4 4~ 40 d28 22 22 7 12 all l~ 13 18 17 34 43 38 d28 22 18 

8 12 al2 ~ 13 18 17 3 4 45 38 d28 22 18 

9 12 al2 l~ ~ 18 17 

· 45 38 d28 18 24 10 a12 l~ 13 l~ 18 17 34 45 38 28 17 25 

11 al2 l~ 13 l~ 18 17 ~~ 47 43 27 17 25 12 al2 l~ 13 13 18 17 30 49 43 ~7 17 25 

13 12 H l~ H 18 18 ~0 49 43 25 18 28 

14 12 H l~ 13 18 18 ~~ 49 41 27 17 28 

15 12 H l~ 1~ 18 18 49 45 27 17 ~0 

16 12 H l~ l~ 18 18 ! 49 <IS 25 16 ~1 

17 12 1~ 1~ l~ 18 20 52 43 25 17 ~l 

18 12 1~ 13 l~ 18 20 

~; 52 41 25 16 149 

19 11 13 1~ 1~ 18 18 52 41 25 16 58 

20 ll 13 1~ 1~ 18 18 25 50 45 25 16 30 

21 11 13 1~ 1~ 18 18 2 50 41 25 18 28 

22 12 1~ 1~ 1~ 18 18 

~; 50 a 43 24 17 30 

23 11 13 13 1~ 20 20 50 45 24 1·~ 31 

24 12 13 13 13 18 18 ~~ 50 41 24 : 3 31 

25 13 1~ 1~ 1~ 18 44 50 41 2 4 16 ~1 

26 13 1~ 1~ 1~ 18 HO 30 50 41 24 16 31 

27 1~ 13 1~ 13 18 ~3 ~1 49 a28 24 16 28 

28 12 13 13 1~ 18 31 28 49 a28 24 16 24 

29 11 13 13 13 - 3~ 28 45 a28 24 16 24 

30 10 13 13 13 - 3~ 28 47 a 28 24 25 25 

31 10 - 13 H - ~~ - 45 - 24 25 -

Second- Maximum IUnimum Wean Runoff in Won th root-days aor&-teat 

October .... ··•················ ········· .. . . ~7~ 14 10 12.0 740 November ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37~ 14 10 12 .4 740 December .... . ... .. ... . .......... ....... .... 403 1Z 13 1~ .0 799 

--- --- ------ --- - -- -- - ------ Calendar year 1940 .... .................. 7 , 407 679 10 20 . 2 14., 690 

------- - - - --- - ------ ------ January . .. . ... . . ...... ....... ............. . 405 14 13 1~ 1 803 February ... .... ···························· 510 20 18 18 .2 1 , 010 Ma rch ...... ... . . .................. .. ....... 774 140 17 25 . 0 1 , 540 

April ...... . . , ......... . .... .. .....•....... 881 34 24 29 .4 1 , 750 

Kay .. .... .. .. . ............... . . ... .... . .... 2 , 21::5 664 ~0 71.4 4, 390 

Juno ............ •.. .... . •.... , .....•....... l l l86 45 28 ~9 5 2 , 350 

July . .. .. .. .. ...•. ....•.•..•....••. . ..... . . 802 28 24 25.9 1 , 590 

August .. . . . . . . . .. .. . ...............•....... 581 25 16 18.7 1 , 150 

September . .. . .. ....... ·············· ··· ···· 952 149 18 31. 7 1 , 890 

Water year 1940-41 ··· ·· · · ···· ······ ···· 9 , 45::5 664 10 25 . 9 16 , 750 

Peak dh cha r s e.- Jtar. 26 (lC::SO a. m.) 573 sec .-ft . ; May 3 (:S a . m. ) 1 , 960 :~ec.-rt , Sept. 16 

( 4 p. m.) 5!4 soc. - rt. a No gage-heiMt r ecord 1 dhcharge computed or i nterpolated on bash ot regulated flow 1.n South 

Concho Ir risatton Co . 's canal upatream, and weathe r records . d Doubtful gage-height record ; dlsc.harse computed on bnsis or d i scharge measurement and flow in 

canal upstream . 

498588 0 - 43 - 8 
108 COLORADO RIVER BASIN 

South Concho River at San Angelo, Tex . 

Location.- Water-stage recorder above spillway or San Angelo waterworks concrete dam, l a t. 31°26 ' 45', long. 100°25'30', at bridge on U. S. Highways 87 and 277, hal! a m1le 

south o! San Angelo , Tom Green County, and 1 mlle upstream !rom confluen ce with North 

Concho River. Datum or gage is 1,802.94 teet above mean sea level, datum or 1929 . 

Drainafe area .- 2 , 687 square mi les, or Which about 152 square miles is probably non- con rlbut!ng. 

Records available. - October 1931 t o Septembe r 1941. 

Average dis charge .- 10 years, 177 second-teet . 

Extremes. - Maximum d ischarge during year, 23 , 500 second-teet June 5 (gage height, 8 .23 t ee t); mlnimum, 1.0 second-toot Oct . 5 . 1931-41 : Maximum discharge, 111,000 second-teet Sept . 17, 1936, by slope-area method (gage he l ght, 23 .4 teet, or whi ch about 2.4 teet was caused by backwater !rom 

North Concho Rlve r); no !low a t times. 

Maximum stage known , 29.7 teet, Aug . 6, 1906 (not affected by backwater) , according t o information furnished by local res idente. 

Remarks .- Records good except those t or pe riod or no gage-height record , whi ch are talr. 

----urvefsl ons above station tor lrrigatlon , municipal supply and power. F'low partly regula ted by rese rvoi rs (combi ned capacity, about 11, 000 acre- teet), the largest or whi ch ls Lake Nasworthy (capacity, 10, 500 acre-teet), 6 .5 mlles upstream . 

Ratlng table, n.ter year 19-t0-41 (gage height, ln teet, and dlaclarge , in second-teet) 

2.0 2 .65 2 . 15 19.~ 2 . &5 72.5 2.80 555 4 . 00 3 ,490 2.02 4.0 2.20 29 .0 2 .40 98 00 885 4.50 5 , 200 2 .04 5.7 2.25 n.o 2.50 lBZ ~.~0 1 , &10 5 . 00 7 , 200 2 .10 12 . 0 2 .30 54 . 0 2.60 285 3.50 2 , 000 5 . 50 9 , 560 

Discharge . in second-teet, water year Oc tober 1940 to Septeaber 194.1 

Da.l Oct. Nov. Dec . Jan . Peb . Wa r. Apr . May Juno July Aug . S.pt. 

1 4.8 19 23 15 274 ?.9 &15 246 29 274 15 ~ 

2 4.8 21 25 18 253 29 1& 501 ~0 157 11 ~ 

3 6 . 6 21 27 19 264 31 12 5 ,930 4,960 36 9.7 127 

4 ~.8 2~ 25 21 257 31 6 .6 265 46& 59 9.7 6 . 6 

5 2 .8 19 25 2~ 36 ~6 9.7 286 2 , &20 274 9.7 6 .6 

6 4.0 21 29 ~ 25 36 9 .7 274 7~0 286 9.7 4.0 

7 4. 0 29 29 21 21 ~& 7 . 6 274 761 297 16 9.7 

8 4. 0 36 29 25 21 3~ 6 . 6 285 265 286 16 11 

9 4.0 41 37 25 25 ~3 4.6 274 297 285 15 H8 

10 4. 0 36 2~ ?.5 27 33 11 264 3 , 310 274 16 274 

I 

ll 4. 8 29 253 25 25 36 18 264 e,:uo 285 13 25~ 

12 4.8 31 253 27 25 29 19 246 286 264 20 1~4 

13 8.6 31 253 29 21 31 23 34 274 2~ 51 15 

14 6.6 ~ 253 27 ~ 29 25 19 274 241 2~ 1~ 

15 19 33 1~6 29 23 29 141 2~ 264 28 212 15 

16 12 33 19 3~ 25 25 274 27 285 25 16 16 17 7 .6 33 15 33 25 31 264 29 274 36 12 21 18 7.6 36 15 31 27 ~1 264 76 274 145 ll 160 19 7 .6 41 12 33 27 27 264 274 265 285 9.7 1 , 070 20 7.6 36 12 27 29 31 209 285 274 265 9.7 2 43 

21 6.6 36 12 25 29 31 19 7 , 350 274 165 7.6 159 22 6 .6 3~ 12 16 ~1 ~1 16 308 234 18 127 12 23 7 . 6 ~3 12 16 31 ~1 16 274 36 18 2~ 16 24 15 122 13 18 33 31 15 264 41 16 2 ,000 1~ 

25 16 274 15 23 29 418 15 285 44 15 2~ 12 

26 1& 25~ 13 27 29 4,190 38 2 49 44 15 243 15 27 13 2~5 12 29 27 264 2 , 010 38 68 16 2~ 16 28 19 36 13 31 29 25~ 323 31 264 18 135 19 29 18 21 15 31 253 274 33 253 140 9~ 133 30 19 23 16 31 253 264 36 264 2~ 2~ 2~ 

31 19 16 154 al46 33 145 243 

Month Second- •lilu.iiiiUIII ini~WI Mean Runott in root-days aore-teet 

October . ... . ....... . .... ... . ..... ... 261 . 8 19 2.8 9 .09 559 Hovelllber .... . . .. ... .......... ... .. .. 1 ,662 274 19 55 . 1 .340 

Oece•ber ...... .. ... ..... ....... ... , .... 1 , 872 253 12 60 .4 ~.'710 

------- Calendar year 1940 · · · · ·· ·•· ·· ··· · ···· 23,215. 7 ~,400 .9 53.4 46,060 ------- January ...... . .... . .... .. ... . .. . . . .. ........ 910 164 15 29 .4 1 , 800 February .... ...•. . •. • . .• . . .. .. .•..• .. •..•.. 69 ~ 274 21 60 .5 3,360 Ma rch ...... . . . . ..•. . •..•.... . .....•........ 6 , 623 4,190 25 210 12 , 940 April. . . .. .. •. .• .. ..• : .. ... . ............... 4, 588 2 , 010 4.8 15~ 9,100 !lay . .... . ...•. . ..•.. • ... . . . . . . . •. .•. . • . .. . . 18 , '798 7 , 350 1V 606 37,200 June ...... ..... . .... . . . ..... .. . , .. . . . .... . . 28 , 711 9 , 730 29 957 56 ,960 July . . ..... .. .. .. •..•. .•... .. . . • .. . ... .... . 4,892 297 lS 168 9 ,700 August ..... . . .... . . . ... , . • , ..•. . •. • • .• .. ... 4-,565 . 8 2 , 000 7 . 6 147 9 , 060 S.pto•bor .............. . .. . 52 ~ 1,070 4 . 0 122 7, 2 40 

Water year 194041. ....... ... ..... ... .... 78, 168 . 9 7~0 2.8 214 ~~~ Peak db eha rge .- Kay ~ (1 :45 a.m . ) 14,200 eee .-tt.; May 21 (2al5 ~< ) 19 , 400 eee.-tt.; "lny 27 

(3:!0 p.m. ) lS,lOo eee. -tt . ; June 5 (1 p. m. ) 23 ,600 see . -tt. 

• Jrfo gag•-height record; discharge computed on baaie ot recorda tor nearby etat1ona . 
COLORADO RIVER BABIN 109 

Concho Rl ver near San Angelo, Tex . 

Location.- Wata~stage recorder, lat. 31 °27 ' 10', long. 100°24 ' 40', halt a m!le downstream 

!rom confluence or North Concho and South concho R1 vera and H miles southeast or ssn n~~~o, Tom Green County . Datum or gage Is 1,776.8 teet above mean sea level , datum or 

Dralna~e area .- 4 , 492 SQuare. miles, or which about 275 sQuare miles Is probably non- con r!but! ng. 

Records available.- September 1915 to September 1941. 

Average discharge .- 26 years, 199 second-teet. 

EJitremes .- Max i mum discharge during year, 27,600 second-teet June 5 (gage height, 24.13 t eet); minimum , 1.0 second-toot Oct. 23. 

1915-41: Maximum discharge , 230,000 second-teet Sept . 17, 1936 (gage he i ght, 46.6 

reet, !rom tloodmarks), by slope-area method; no now, Nov. 29, 1921. 

Maximum stage kn6wn, 47.5 t eet Aug. 6, 1906 (discharge, about 246,000 second-teet). according to lnronnatlon rurnlsbed by local residents. 

Remarks.- Records good . Many diversions above station ! o r Irrigation and municipal 

---siiiijiiy. Flow partly regulated by diversions and reservoirs above s tation (combined ca pacity, about 11,000 acre-reet) , the largest or which Is Lake Nasworthy (capac ity, 10, 500 acre-reet). 

Discharge in second-feet water year October 19•0 to September 19~ 

Da Oot . Nov . Dec . Jao . Feb . Mar. Apr . II&¥ June J uly Aug . Sept . 

1 4.Q 20 2~ 1S ~4/j ~5 ~4 04 55 280 2~ 2S4 2 4 .5 21 24 21 ~26 M 28 708 58 '799 18 268 3 6.1 22 24 20 284 M 2 4 7 #·190 4,790 228 17 169 4 5.~ 2~ 26 19 264 26 19 670 522 1~0 16 22 5 ~-~ 22 24 22 56 ~2 1Q 486 4.660 ~9 H 16 

6 ~.7 22 28 22 ~ ~5 19 ~84 10, 600 ~~5 H 1~ 

7 5•~ ~4 26 22 26 ~ 17 ~45 7 ~10 20 17 

8 ~ 60 28 24 26 ~~ 15 ~20 ~61 ~01 22 1Q 

9 4.5 5~ ~ 27 2Q 36 H ~05 ~61 2Q7 19 1U 10 ~ ~7 245 2~ ~1 ~2 17 297 3,830 ~01 20 268 

11 a4.2 ~ 267 24 26 M 2~ 2Q7 2 , 630 ~1 18 267 12 a5.1 ~1 260 26 ~0 ~1 25 28Q ~72 2Q7 ~6 160 13 a6 . 0 ~0 254 ~0 22 ~1 2Q 8:1 ~20 289 ~8 2~ 

14 7 .0 ~1 ~ 25 25 40 ~1 48 2Q7 276 2~ 22 15 16 ~2 HO ~ 26 36 9~1 48 7 74 236 2~ 

16 14 ~2 18 ~0 27 ~2 9~ 48 46~ 46 50 ~0 

17 7 . 0 ~6 17 ~1 27 58 ~72 49 700 60 22 65 18 7.0 40 17 ~0 29 48 ~05 78 42 ~ 121 17 256 

19 7 .0 ~ 16 ~~ 2Q n ~05 ~20 ~26 276 15 1 , 120 

20 6 . 5 ~7 16 26 ~ n 242 3~0 ~1 258 14 264 

21 6 .6 ~4 16 25 ~0 42 42 10,100 289 170 11 200 

22 6.~ ~5 15 16 ~~ ~ 28 6~1 258 29 92 27 

23 ~.Q u 15 al9 ~8 n 28 722 67 25 276 ~5 

24 ~6 148 15 o22 ~6 40 25 401 54 27 1 ,990 2Q 

26 82 284 17 o26 ~4 ~74 ~ ~0 60 28 268 25 

26 16 272 16 o27 ~2 4,490 648 2Q6 65 29 272 26 27 1~ 267 H 27 ~ 6Q6 5,360 85 77 2Q 271! 27 

28 42 41 15 ~0 ~4 MO 662 ~ 29~ 27 724 29 29 24 2~ 16 ~0 - 284 412 6~ 284 116 490 125 

~ 22 2~ 17 1 ~2 - 272 ~4/j ~ 276 260 ~55 272 

31 1 7 - 17 156 - 170 - 61 - 17Q ~05 -

Month Second- llaJtl.JoUII Mi.niaua MeaJJ Runoff in 

root-days ac re-teet 

October .. . ...... . ... . . . ............•.... . .. 890,7 536 ~ 28 .7 1,770 Noveaber ....... .. ... . ... a ••••••• • •••••••••• 1,$0:1 28t 20 60 . 1 3,560 Deoe•be r .. . ... . .... . . . ............... . ..... 1,877 257 u I 60 . 6 3 , 720 

--- ---- ------ ------ ------ ------ Calendar year H~40 ...... ........ .. .. .... 38 , 848.6 11,300 2. 1 106 77 ,040 

------- ------ ------ ------ ------ January . . ... ...... . . . .. . a • • •••• •• •• •• ••• • •• 911 156 16 2Q .4 1,810 Febru.ary . .......... . ... .. . . ., .. . .... .... . .. . 1,9~ ~4 6 22 69 .8 3 ,8'70 March ...... . ....... . . . . ...... . a •• •••• • • • • • • 7 , 518 4,490 26 242 14. , 910 

April. .......•..•.... . . . .. · • .. • · · · · · · · · · · · · 10,986 5 ,360 14 ~66 21 ,'790 

!ley . ................ . .. ..... .. ... . . . . . . . . . . 26, 414 10,100 48 820 60, 410 

June ...... . .. ... •... .. . . ........ .. . . . . .... . ~.Q 55 10, 500 54 1 ,132 6'7,350 

July ..........• . •..••.••. . ....•....•• .. . ... 6 , 226 '799 25 201 12,360 

AUI\l.Bt .... ... ........ . ... .... . • . . I •• • •••••• 6 ,91'7 1,9;0 11 191 u, 740 

Septeabe r ... ......... .. . .. . . .. .. . . . . .. . ... . 4 , 235 1,120 1~ 141 B,tOO 

Water year 19,0-41 ...... . ..... . ..... . . . . 101, 682 .7 10, 500 .~ 2'79 . 201,700 

Peak dhohara•·- May3 (3 a.m.) 15 ,400 aec. -rt.J ka7 21 (2 !30 p.m./25 ,600 •ec .-rt.J JUne :5 (4 p.m.) 12,20 sec. -tt. J June 5 (11 p. m.) 27 ,600 aec . -rt. J JUne 10 7 p. m. ) 10,400 aec. -tt. a Jfo gage-he1gbt reoordJ dhcharge oO'ID.putec1 on baa1a or recorda ror nearby atat1on. . 
110 COLORADO RI VE:R BASIN 

Concho River near Paint Rock, Tex . 

Locati on.- Wa ter-stage re co rde1· upstream !rom spillway or masonry dam, lat. 31°31 ' , long . 99°55', at bridge on u . s. Hi ghway 63, a quarte r or a mile north or Paint Rock, 

Concho County . Datum or gage Is 1 , 574. 43 t ee t above mean sea level, datum or 1929 . 

ralna~e area .- 5 ,538 s quare miles, or which about 275 square miles ts probably non- con r lbutl ng. 

Records available.- September 1915 to September 1941. 

Average discha rge .- 26 years, 263 second-teet . 

Extremes .- Maximum dis charge duri ng year, 24,900 second-teet June 6 (gage height , 22.78 feet ); mt ntmum, 4.2 second-teet Oct. 3-5. 1915-41: Maximum discharge , 301 ,000 second-teet Sept. 17 , 1936 (gage hetght, 43.4 teet, !rom !loo<lmarks), by slope-area me t hod; no !low at t imes . 

Remarks.- Records good except thOse during periods or rapidly changing stage , whlch are -----ra:rr. Many dlverslons above station ! or lrrlgatl on and mun l clpal supply. Low !low mate rially atrected by dl versions and storage above eta tlon . 

Disohar&e . in second-teet, water year October 194.0 to September 1941 

Oct. Nov. Dec . Jan . Feb . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

4 .8 

4 . 5 4.2 

4.2 

4.2 

4.8 

4.8 

4.8 

5 . 0 4.8 

4.8 

4 . 8 5.7 

6 . 4 5.7 

5 .0 

5.0 

7.8 

16 

13 

ll 

9. 4 

8 .5 

9 . 4 559 

172 

55 

32 

54 

37 

29 

23 

20 

19 

20 

23 

23 

24 

32 

49 

62 

55 

39 

32 

29 

29 

29 

~2 

32 

34 

39 

44 

41 

41 

51 

1~4 

267 

262 

252 

130 

51 

Month 

34 

29 

27 

27 

29 

29 

29 

29 

29 

29 

154 257 

262 

262 

257 

205 

84 

46 

37 

3 4 

29 

29 

27 

26 

26 

24 

24 

26 

26 

24 

26 

26 

29 

32 

32 

39 

37 

37 

37 

~7 

~7 

4l 

39 

41 

41 

44 

39 

39 

4l 

44 

44 

46 

44 

39 

37 

29 

27 

27 

34 

39 

44 

46 

October . . ... . . . . .. . . .........•• . , . . ,, . . . 

117 

335 

324 

295 

278 

152 

70 

46 

44 

41 

39 

39 

44 

37 

32 

32 

. 

34 

~7 

39 

39 

41 

46 

49 

49 

46 

46 

44 

Nove•ber. . . . . . . .. .. .... . .. . ... . . . . . December.. .. . . .• . . . .. . .•. . •. . . . 

Calendar year 1940 . . . . .. . .. . . . .. .. .. . . . 

January .. .. . . . . . . .. . . . . - .. . . · · · · • · · · · · · · · · · February . . . ..... .. . . . . .. . ... . ... . . . .. .. ... . March . . . . . .... .. . . . .. ... . ..... . .. . .. . ... . . . . April . .. .. . 

llay . . .. . .. .. .. . .. ... ...... .. . .. . .. ... .. .. . . June .... .. . .... " . ........ . .. . . .. . . . •. . July .. . . .....•. •. .•..•. . • . ••. . • . •. . .. . .. •.. August. . . . . .... . . . ... . 

Mar . 

H 

44 

44 

9 

39 

~7 

~4 

~9 

~9 

39 

37 

~9 

37 

~7 

37 

41 

61 

62 

77 

58 

61 

61 

51 

51 

8 1 

610 

1,810 

441 

324 

295 

278 

Apr . 

220 

9 2 

55 

41 

37 

~2 

26 

27 

26 

2 4 

21 

20 

26 

34 

eo 

1 , 170 

454 

329 

301 

28 4 

252 

117 

58 

4l 

39 

,5~~ 3~~ 

m 

llay 

~~6 

487 

~~o 

2 , 070 

625 

Hl 

365 

~41 

324 

31.2 

301 

295 

284 

162 

81 

66 

58 

58 

51 

226 

4,920 

~60 

461 

997 

371 

324 295 

157 

105 

81 

7~ 

Second- rool-dfoYS Maximum 

l , ()g6 . 6 

1 , 918 2,176 

559 

267 

262 

Juno 

70 

88 1,2~0 

4,170 

~5 

14. , '700 

2 , 890 

441 

:o93 

987 

5 ,040 

1 , 400 

:o99 

41 

~29 

:o99 

529 

52~ 

371 

~29 

312 

301 

267 

134 

88 

73 

77 

73 

241 

27~ 

Miniaua 

July 

289 

3~9 

667 

267 

170 

~06 

~12 

~01 

295 

3~7 

382 

318 

295 

289 

27~ 

144 

70 

62 

85 

257 

262 

206 

79 

44 

34 

32 

29 

29 

29 

~2 

225 

lie an 

210 

86 

~9 

26 

2 4 

27 

2~ 

52 

55 

34 

26 

23 

23 

66 

249 

2::16 

116 

46 

32 

26 

21 

21 

2~ 

4~7 

1,760 

278 

538 1,250 357 

389 

318 

Sept . 

284 

267 

257 

200 

81 

u 

27 

2~ 

49 

87 

257 

257 205 

84 

44 

212 

77 

120 713 

697 

278 

230 

109 

66 

55 

4l 

34 

32 

32 

4l 

Runoff in acre-teet 

4.2 ~6. 4 2 ,180 

J9 63.9 ~.aoo 

24 70 . 2 4 , 320 

52 , 862.3 12 , 300 4.2 14-4 104:, 900 

1 , 168 46 26 37 . 7 2 , :520 2 , 427 :5:55 32 86 .7 4, 610 7 , 917 3 , 610 34 255 15 , 700 

11 , 663 :5 , 690 20 ~ 23 , 110 30 , 356 8 ,330 61 979 60 , 210 36 , 803 14: , 700 ?0 1 , 227 73 , 000 6 ,.458 667 29 208 12 , 810 6 , 801 1 ,750 ·21 219 13 , 490 September . . .. . ..... . ..... . .. .... ...... . t----4_, 9_o_o_t-___ 7_1_3+----23--!---l-6_3--lf---9-, _72_o 

Water year 1940 -41 . . . . . . . . . . . 113 , 673.6 14 , 700 4.2 311 225 , 500 

2p:~!.1 ;!~0§ee;:c~~~t. i

8 

J~! ~ (2m; m? ~~-~g~·;;~: ~r~~ u~! ~·cil :~g ~?~ . ~4;~~0; a!::-~ . J 

JUDe 11 (4 a . m.) 10,400 eec.-rt. 
COLORADO RIVER BASIN lll 

South Concho Irrigation Co .'s canal at Christoval, Tex . 

Location .- Water-stage recorder, lat. 31°13 ', long . 100°30 ', ~t Christoval, Tom Green 

County, 85 teet downstream rrom point or diversi on and 100 teet downstream rrom bridge on U. S. Highway 277 . Datum or gage Is 2 , 017 . 0 t eet above mean sea level, datum or 1929. 

Records available .- November 1939 to September 1941. November 1921 , February 1930 to September 1939 (mi scellaneous discharge measurements only). 

Extremes.- Maxlmum discharge during year, 44 second- t eet l"ay 3 (gage height , 4 .49 teet) , !ro rating curve extended above 25 second-teet by logar1 thm!c plotting; minimum, 3 .8 

second-teet Sept. lB . 1939-41 : Maximum discharge , 66 second-teet June 9 , 1940 (gage height, 5 .25 teet) , rrom rating curve extended above 25 second-t eet by logarithmic plotting; minimum, 3 .7 

second- teet Dec . 26, 27 , 1939 . · 

RemR.rks . - Records ta!r . Station above all diversions rr om canal. canal diverts water --ror-!rr!gation from r ! ght bank 600 feet upstream from gaging station on South Concho 

R!ver. 

Discharge, in second-tee t. water year October 19«Jto September 1941 

Day Oc t . Nov . Dec. J an . Feb . Mar . Apr . Way June J uly Aug. Sapt . 

1 15 15 14 14 8 . 2 7.9 8 . 5 10 aH 20 17 7.6 

2 15 15 14 14 8 . 2 7 . 9 8 . 6 12 al4 20 17 7 . 8 

3 15 14 14 14 8 . 2 8 . 0 8 . 8 29 14 20 17 9 . 0 

4 15 14 14 14 8 . 2 8 .1 9 . 0 1~ 14 20 17 8.7 

5 15 14 14 14 8 . 2 8 . 2 8 . 7 12 14 20 17 8 . o 

6 15 14 14 14 8 . 1 8 . 2 8 . 8 12 14 20 17 ll 

7 15 14 14 14 8.1 8 . 3 9 . 0 1 2 l4 20 17 13 

8 15 15 14 14 8.1 8 . 5 8 . 8 12 13 20 18 13 

9 15 14 14 14 8 .1 8 . 5 9 . 0 12 13 19 20 12 10 15 14 14 14 8 .1 8 . 5 9 . 3 13 17 19 20 7.9 

ll 15 14 14 14 8 . 1 8 . 2 11 13 15 19 20 7.7 

12 15 14 14 14 8 . 0 7 . 9 11 13 14 19 20 6 . 8 

13 15 14 14 14 8. 1 7.9 11 13 14 19 20 6 . 3 

14 15 l4 14 l4 8 . 2 7 . 9 11 13 l4 19 20 5 . 8 

15 15 l4 14 14 8 . 1 7.9 10 13 14 19 20 5.4 

16 15 l4 l4 14 8 . 0 7.9 10 13 l4 19 20 5.2 17 15 14 14 l4 8 .o 8 . o 10 13 14 19 20 4 . 7 18 15 14 14 14 8 . o 8 . 1 9 . 7 13 14 19 20 9 .4 19 15 14 l4 15 8 . o 7 . 9 9 . 8 13 14 19 20 6.6 20 15 14 14 15 7 . 9 7.9 9 . 8 13 l4 19 20 7.1 

21 15 14 14 15 7 . 9 7 . 9 9 . 7 13 14 19 20 6 .7 22 15 14 l4 15 7.9 7 . 9 9 . 7 13 14 18 20 6 .1 23 15 14 l4 15 7 . 7 7 . 9 9 . 7 13 14 18 20 6 . 3 24 15 14 l4 15 7 . 7 7.9 9 . 7 13 14 18 20 6 . 4 25 15 14 14 15 7 . 7 8 .0 9 . 7 13 l4 18 20 6.1 

26 15 14 14 15 7.7 14 10 1~ 14 18 20 5 . 9 27 15 14 14 15 7 .7 8 .1 10 ~ 21 18 20 8. 4 28 15 14 l4 15 7.9 8 . 1 10 1~ 21 18 20 13 29 15 14 14 15 - 8.5 10 13 20 18 11 12 30 15 14 14 15 - 8 . 5 10 14 20 17 7.7 ll 31 15 - 14 13 - 8 . 5 - &14 - 17 7 . 7 - Month Second- Waxi .mua Yini~aum Wean Runoff in 

root-days acre-teet 

Octobe r . ...... . ......... . ... ... .... . •...... 465 15 15 15. 0 922 

Noveaber .. ...............•. . ~ . . •. • •.•...... 423 15 14 14.1 ~9 

DeoemLer. ....... ... ................... .. ... 434 14 14 14. 0 861 

-- ----- ------ ------ ------ --- --- Calendar year 1940 .............. ·•······ ~ 30 5 . 3 13.0 9 ,400 

--- --- - ------ ------ ------ ------ January . ......... . .. .. ...... · · • · · • · · ~ · · · · · · 445 15 13 14. 4 883 

February . ..... , .. w . . .................... ••• • 224. 1 18. 2 7 . 7 8.00 444 

March . ........•..........•..•...... .• . . ... . 257.0 14 7 . 9 8.29 510 

Ap ril .. ... ... . •..•..• ..•. . .. • .. • · . •. ·•· · · ·· 290 .3 11 8 . 5 9 . 68 576 

llay . ................. ... . . ............ . . . . . U2 29 10 13.3 817 

June .. ........ , .. • . . •..•.• . . , .. o • ••• •••• ••• 448 21 13 H . 9 889 

J uly ...... ..................... . ... .... .... 585 20 17 18 .9 1 , 160 

Aug·ust .... ........ . .......•.... o • • •• ••• • •• • 563.4 20 7.7 18.2 1 , 120 

September ... .... . .... ••••O•••··· · . . . .. .... . 244 .9 13 4 . 7 8 . 16 486 

Water year 1940-41 .......... .... ... ... . . 4,791.7 29 4 . 7 13.1 9 , 510 

a Ho gage-he 1f,bt record; d1scb.arg• interpolated. 
112 COLORADO RIVER BAS IN 

I'Uddle Concho River near Tanke rsly, Tex . 

Location.- Water-stage recorder and masonry cont rol , lat. 31°22 ' 35", l ong. 100"36 ' 50", at 1'Welveml l e Br i dge, 3 miles nort heast or Tankersly, Tom Gr een Cowtty , and 9i miles upstream tram Spring Cr eek. Datum ot gage Is 1 , 919 .5 teet abOve mean s ea level, datum ot 1929 . 

Drai nafe area .- 1 , 280 square miles, or which abOut 152 squar e miles Is pr obably noncontr i - but ng . 

Records available .- February 1930 to September 1941. 

Average dis charge .- ll year s , 52 . 3 second-teet . 

Extr emes.- Maximum discharge during year, 25 100 s econd-teet Jwte 5 (gage he i ght , 24 . 1? f eet), rrom rating curve ext ended above 1i.ooo s eco nd-teet on basis or computed peak n ow over Naswor t hy Dam; no n ow a t tine s. 1930-41 : Max imum discharge , abOut 35, 000 s econd-teet Sept. 26 , 1936 (gage hei ght , 24. 2 t eeth computed on basis or records or tlow over Naswor thy Dam, 12 mi l es downstream, ad justed t or Inflow and storage · no ! l ow at !mea . Max !mum stage known, about 27 . 2 tee t ln April 1922, accor d ing to Inf ormation tur- nished by State Highway Depar tment . 

Remar ks.- Records good except those above 11 , 000 second- t eet, which a re poor . Small 

---arveFsl ons above stati on t or Irrigation artec t l ow n ow. 

Dieoharge , in s econd-teet, water year Oc t ober 1940 t o Septembe r 1941 

DaJ Oot . 

l 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Nov. Dec . Jan . 

Month 

Feb . 

196 8 . 9 

1 . 2 0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

o· 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

October . . ... . . . ... . . . . . .. . . . . ... .... .. . . . . . . Noveaber .. . . . . . . . . .. .. . . . . . . . . .• . .• . .•.. . . . Deceatier . .. . . . . . . . .. . . . . . .. .. • . . . . .. . . ... . . 

Calendar year 1940 . . .. .. . . .. . .. . .. . . 

Mar. 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 248 

917 

ge 

46 

21 

11 

6 . 3 

Apr . 

4 . 3 

3. 1 2 . 3 

1 .4 

1.1 

0 

0 

0 

. 7 

.5 

. 3 

0 

. 5 

1. 3 499 

14 

10 

6.1 

5 . 3 

2 .9 

2 . 0 1 .8 

1 . 8 1.8 

1.3 

449 

1.310 

239 

60 

26 

llay 

16 

1, 390 1 , 630 

328 

106 

50 

~1 

21 

15 

11 

8 .4 

7 .1 

6 .1 

5 .1 

4 .2 

3 . 5 

3 .1 

3.1 

3.5 

2 .8 

7,980 

4H 

119 

66 

41 

32 

2e 

22 

19 

16 

H 

June 

1 2 

11 2 , 000 

294 6 , 490 

6 , 2 40 

1 , 230 

3 40 188 2 ,140 

1 ,720 

320 

1 91 

138 

114 

114 

89 

76 

68 

6 2 

57 

52 

48 

47 

48 

51 

48 

42 

37 

36 

July 

36 

193 

3 44 

29 4 

200 

9 4 299 

96 

62 

62 

62 

62 

46 

44 

157 

68 

52 

41 

36 

3 4 

30 

28 

26 

26 

24 

23 

22 

21 

19 

18 

17 

Aug . 

15 

15 

14 

13 

13 

13 

12 

12 

106 

36 

24 

18 

16 

20 

40 

29 

22 

16 

15 

13 

129 

134 

38 1 , 040 239 

106 

58 

514 

200 

66 

46 

Sept . 

39 

3b 

31 

30 

28 

25 

24 

23 

31 

28 

24 

26 

32 

29 

2e 

50 

36 

1 2e 

6e 

38 

3 2 

30 

30 

31 

30 

26 

26 

26 

26 

26 

Se on~­

t oot-<layo Maxiaum Miniaum lloan Runott in aore-teet 

0 

0 

0 

3 ,389 . 2 

0 0 0 0 0 0 

0 0 0 

2 , 000 0 9. 26 

0 

0 

0 

6 ,720 

January . . ... . . .. . ..... . .... . . .... . . . . . . . ... o o o o o February .... . . . . .. . . . .... . . .. . ....... . . . .. 206. 1 1 96 0 7. 6 409 llarob . ... . . .. . .. ... . . .... . ........... . .. . 44.3 917 o 43 .4 2 , &70 

Q:~ ::: ::: :: :: :::::: ::: ::::: :: :::: l~ :~~t~ ;:~~g 8 ·& 2::= June .. . . . . . . . . ... .... . . . . . .. . . . ........ . ... 22 , 30 3 6 ,4QO 11 743 44, 240 July .. . ... .. . .. . . .. . .. . . ... .. .. . ... .. .. . 2 , 526 3 44 17 81 .5 6 , 010 August . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ,o:n 1 , 040 12 97 .8 6 , 010 

Septeaber .. . . ..... . ........ . ...... . .. .. .. . . l-_l_,_o_2_9_-+ ___ l2_6-I---2-3--11--3-4_._3_+-_2...:':..0_4_0 

Water yea r 1940 -41 45 ,468 .8 7 , 980 0 126 QO , l 90 

Peak dhcharge.- Kay 21 (10 a. m. ) 23,400 a eo. -tt., June 25 ,100 ae c . - tt. (4 p.m . ) 6 ,940 aec .-tt. , June (7oMp.a.) 
COLORADO Rl VER BASIN 113 

Spring Creek near Tanke rs1y, Tex. 

Location.- Water-stage recorder and concrete cont r ol , l at . 31°21 ' 30' , long·. 100°32'05', 

2t miles upstream !rom mouth and 6t mlles east or Tankersly, Tom Green County. Datum ot gage Is 1,874.6 tee t above mean sea level , datum or 1929 . 

Drainage a rea .- 734 square miles . 

Recorda availabl e.- february 1930 to Sept ember 1941. 

Average discharge.- 11 yea rs, 40 .5 second-t eet . 

Extremes .- Maximum dis charge duri ng year, 7, 100 s econd-teet June 3 {gage he i ght, 12 .05 

teet); minimum, 1. 4 second - t ee t Oct . 5 , 6. 

1930-41: Maximum discharge , 23, 900 second-teet Sept . 17 , 1938 (gage he ight , 20 .3 

teet); no ! low at times. 

Maximum stage known, about 26.0 t eet In 1882, accord i ng t o lnfo11118 t1on fu rnis hed 

by local residents . 

Remarks.- Re cords good. Seve ral small d1 vers i ons above sta tion tor 1rr1gat1 on. 

Correcti on.- Co rrec t ed !1gures t or t he month or September 1938 and the wate r year 1935- 38, supe rsedi ng t hose published In Wa ter-Suppl y Pape r BOB , a r e g iven herei n : 

Month Second-too t- Maximum Minimum Mean Run-ott In 

days acr e-teet 

Se ptembe r ........... 19 109 .0 6 300 0 637 37 900 

Water year 1935-38 23, 923 .3 6 , 300 0 65 . 4 47 ,460 

Discharge . in second-teet . water year October 1940 to Septeabe r 1941 

Da Oct . Nov . Dec . Jan . feb . Mar. Apr . llay June July Au.&. Sept . 

1 1.6 17 26 21 57 24 50 ~6 47 ~6 14 n 2 1.6 15 2~ 21 46 24 48 1,060 62 48 14 ~ 

3 1.6 15 ~ 24 ~2 24 46 1 ,620 1 , 670 57 12 S6 4 1.5 16 2S 24 26 22 4~ 196 182 52 14 · ~4 

5 1.6 16 22 26 24 21 42 110 96 54 16 S4 

6 1.6 16 22 25 26 20 42 as 206 50 14 32 7 1.6 19 22 25 26 9.0 ~9 81 144 57 14 s~ 

8 1.6 ~9 22 25 26 6.9 37 78 81 58 18 S2 9 1.6 41 22 25 26 7.6 S6 76 72 55 22 4~ 

10 1.6 ss 22 26 26 7 . 1 S5 72 245 169 25 S9 

11 1.7 26 22 25 24 6 . 2 24 69 146 104 2~ S7 12 1.7 22 22 25 24 6 . 2 18 88 88 66 2~ ~ 

13 1.7 21 2~ so 22 5.6 19 67 80 64 24 42 

14 1.6 21 2~ 29 22 6 . 1 21 64 78 ~ ~7 42 15 1.5 21 23 28 22 8 ~18 61 81 51 27 ~9 

16 1.6 2S 2~ 2S 2~ 4.0 59 60 81 4S 27 4S 

17 1.5 24 22 26 24 7.0 24 58 80 4S 26 78 

18 1.6 18 22 26 24 16 16 61 76 S9 19 90 

19 1.6 18 22 26 25 14 14 64 72 ~ 17 88 

20 1.5 24 22 26 26 1~ 10 57 71 ~7 16 58 

21 2 .9 24 22 26 26 16 7 . 8 426 71 ~6 170 51 

22 6 . o 24 22 26 25 17 7 .1 67 69 ~~ 166 48 23 6.2 ~1 22 26 28 18 10 47 69 S2 4S 50 

24 4.8 71 22 26 28 17 11 1SS 64 26 372 52 

25 10 46 22 26 27 1,0.0 12 ~ 61 2S 57 50 

26 7.1 ~ 22 2~ 26 1,620 27 55 66 19 ~9 48 

27 .~ 28 21 22 26 2~9 ~s 52 64 17 ~7 47 

28 196 26 20 24 25 80 149 51 56 21 47 47 

29 72 26 20 2'7 61 57 54 44 22 41 47 

30 24 26 20 27 54 56 50 41 19 ~9 47 

31 16 22 S2 52 47 16 41 

Month Second- Mui_eua IU.niaua Mean Runorr in toot-days acre-teet 

Ootober .... .. . . . . . . ........ . ... . . . . . . ... ~s.5 196 1.6 12 .4 761 

Noveaber .... . . . . . . . ..... . .... . ... . . . ....... 780 n 15 26.0 1 , 660 

Deceabe r .... . . . . ... . . . . .. .... .. . . .. .. ...... 586 26 20 22.1 1 , 360 

--- -- -- Calendar year1940 ····· ··············· ·· 8,661.9 1,370 . 6 23.7 17,180 

------- J&nuary ... .. . . . .. .. . . . .. ..... . . . . ........ . . 788 ~2 21 25 . 4 1 , 560 

February . . .... . . ... . . .... . , . . . . . . . . . . . . . 757 57 22 27 . 0 1,500 

March . .... . .. ... . . . . • . . . .. . . . ..•. . •. ·•··· .· 3,459.4 1,620 ~.8 112 6,860 

April. ....... . . . . . . . • . .... . . . . .•.... ·. · · · · · 1,658.9 ~~ 7 . 1 55 ~ 3,200 

llla.y . .... . . . . .... 0 •• • ••• • • ••• 0 ••• •• • •• • •• • 0. 5 ,008 1 , 520 S6 162 9~0 

June .. ... . .. . .. . . . . .. ... . . .. . .... . .. . .. .. .. 4,261 1 , 670 41 142 8 ,450 

July .... ... . ...•. . •. • . . . . .•... . •. . • .. • .... 1,447 169 16 46.7 2,870 

August .. . . ... . . . . . .. .. . . .. •. . . .• .. •..• . .... 1,432 ~72 12 46.2 2 , 840 

Septeaber , . .. . .. . ... . ...... .. ... .. ..... 1,404 90 ~2 46.8 2,780 

later year 1940-41 ······· ···· ···· ······ · 22,064 . 8 1 , 670 1 . 5 60 . 5 43 , 750 

Peak c111chara• ·- l'lar. 25 (12 :!0 p.m . ) 7,100 aeo.-tt. 

(12 p .m. ) 6 ,520 aeo .-tt . ; Kay 2 (10 JS0 p.m. ) 4,860 aec.-rt. ; June ~ 
114 CO~~ RIVER BABIN 

Nor th Concho River at Sterling City, Tax . 

Loca tion. - Watflr-stage reco rder, l at . 31°50 ' , l ong . 100°59 ' at county highway bridge 0.3 mile south or Sterling City, Sterling County, and 4 miles upstream !rom Sterling Creek. Datum or gage is 2, 242 .4 ree t above mean sea level, datum or 1929 . 

Draina~e a rea.- 690 square niles, or but ng . ich bo t 75 square miles is probably noncontrtRecords available .- September 1939 to September 1941. 

Extremes.- Maximum discharge dll!"ing yaar, 2, 950 secoll<l-reet Mar. 26 (gage height, 16 .47 teet) , rrom rating curve extended above 1, 000 second-teet by logarithmic plot ting ; no now at times. 

1939- 41: Maximum discharge , that or Mar . 26 , 1941; no now at t ime s . !1a.Ximum stage known , 23 .3 reet May 6, 1S9l , according t o tnrormati on furnished by local residents. 

~ 

Remarks.- Records good except t hose ror period or no gage- height record, Which are poor. diversions above station ror Irrigation . 

Ra ting .table ., water year 1940- 41 (gage height, in teet, and cUaeharge, ln aocond ... reet) 

1.86 0 2.0 . 2 

2 . 15 . 7 

2.2 1.0 2 . 3 2.0 2.4 3.a 2.5 6 . 7 

Discharge . in second-feet. 

Day Oct . Nov. Doo. Jan . Feb . 

1 0 0 0 . 6 3 . 6 

2 0 0 .6 3 . 1 

3 0 .2 .7 2.4 

4 0 . 2 .~ 1.3 

5 0 ~ .6 . 9 

6 0 . 3 . 6 1.0 

7 0 .3 .7 1 . 0 

a 0 . 4 .6 .9 

9 0 .. .6 .a 

10 0 . 4 .6 .a 

11 0 .. .6 . a 

12 0 .. .6 . a 

13 0 . ? . 6 .7 

14 0 1 .4 . 6 .8 

15 0 1.6 .B . a 

16 0 1.0 .6 . a 17 0 .7 . a .o 1a 0 .s . 6 . a 19 0 .5 .6 .a 20 0 . 5 . e .9 

21 0 .5 .7 1.1 22 0 . 5 .7 1.0 23 0 . 5 .6 1.1 24 13 .5 .5 1.2 25 4.7 .6 .. 1 . 2 

26 1 . 0 .4 .4 1 . 2 27 . 3 . 5 . 3 1.0 28 0 .6 . 3 1.0 29 0 . 4 . 7 30 0 .. .a 31 0 .s 3 . e 

llonth 

October .. . . .......... . ......... . ....... . November . . ..... .. ....... . , . . • ...... December . ... . .. . . ... .. .. .• . . •..•.. .. .. . 

Calendar year 1940 

January .. ...... . . . ... .. . . . . . . . February . .... . .. .. . . . . . . . . . . . . . .. .. . . . . . .. . March .... . ....... . .. . April. ...... . .. . .... . . ... .... . ..... . .. .. .. . llay .. .... . ..... . ...... . .... . . ... ... . . . . . . June . .. .. ..... . .. , . . . . . ... .. . .. .. . . . . . . . . . July .. . .. . .. ..... . .. ... ....... . ..... . .. . .. . Augu.at.... ..... . ..... . . . . .. . . . ... . .. . . . . . September . . . .... . ......... .. . . . . . . .... . 

2 . 8 18 7.0 315 3 . 2 35 8 . 0 409 

3 . 6 53 9 .0 563 

4 . o 77 10 . 0 746 4 . 5 113 11 . 0 966 s.o 163 6 . 0 233 

water year October 1940 to September 1941 

War. Apr . llay June 

1. 0 3 . 1 g . a 0 . 8 

1.1 3 .1 21 1 . 3 

1.0 2 .4 58 3 . a 

1.0 2 . 2 47 3 .6 

.9 2 . 0 H 2 . 3 

. a 4.6 7.a 26 

1.0 2 . 8 6 .7 44 

1.0 l.a 4. 3 21 

.9 .7 1.5 a.a 

• 9 .. 3 . 1 70 

. a . 3 4 . 3 30 . 8 .3 2 . 0 e •• 

1.0 1.5 2.8 3 . 1 

1.1 1.7 2 .9 3 . 3 

.a 44 2 . 0 3.1 

.7 4.6 2 .4 513 

1.1 1.8 2 . 4 78 

1 . 2 1. 4 3 . 3 15 

1.3 1.7 2 . 3 a . 4 

1.3 1.2 2 .3 5 .4 

1.6 .9 2.2 3.3 

1.4 1.0 2 . 0 3.6 

1.7 1.3 2 . 2 3 . 3 

1.5 1.3 1.9 3 .1 

213 1.3 1 . 3 2 . 6 

920 321 2 .4 3.3 34 2a 1 . 1 3.1 

12 5 .7 1. 2 2 .4 

6 .4 3.6 1.6 2 . 0 

4. 3 2 .9 .7 1 . 9 

3 . a .s 

July Au& . Sept . 

720 0.3 o.e 110 1.3 1 . 6 

22 .s . 6 9 . 6 .6 .4 6.7 .s 1.3 

4.0 . e .5 5 . 1 .6 .6 

4.3 . 6 2 . 3 

3 . a . 6 3.3 

3 . 6 1.7 ;; .1 

a . 5 . 5 a2.4 

5.4 . 2 &2 . 0 

3 . 6 .2 al . S 

3.1 .3 al.o\ 

2 .4 .. a5 . 4 

2 .4 .4 a 55 2 . 3 . 7 &1.2 

2 .3 .4 &1.8 

2 . 3 6 1.4 

l.a .6 1.4 

1.9 .e 1.2 l . S . 6 1.1 1.7 .. 1.4 

1.6 .5 1 .4 . 6 1.3 2 .4 

. 4 .s 1. 5 . 6 1.0 1.2 .9 e.o 1·2 . e 3.1 1 . 1 .4 1 . 9 . 7 .. .7 

lie an Runorr in aore-raet 

. 61 

0 

.so 

4 . 40 

.69 

1.!7 

39. 3 15. 0 6 .74 

29 . 2 30 . 1 

. 88 3 . 74 

38 

0 

31 

3 , 190 

43 

65 2 ,4 20 

aoo 

415 

1 , 740 l ,aso 

5 4 

223 

Water year 1940- 41 . . . . . . . . . . . . . . . 10 . 7 7 ,770 

Peak discharge.- Mar. 26 (4 a.m.) 2 , 950 sec. - ft.; Apr. 26 (9 a . m.) 078 ae c .-tt .; Jnne 16 {6:16a . m. ) 1 , 150 sec . - tt. ; July 1 (6 p.m. ) 2 , 610 aec. -tt . a No gage- height record; discharge computed on basis ot known range in stage , available gage he ights, and records tor station near Carlsbad. 
COLORADO RIVER BASIN 115 

North Concho River near Carlsbad, Tex . 

Location .- Water-stage recorder abov e spi llway or State Sanator itlJ!l Dam, lat. 31°36 •, long . Ioo"«J•, 2 m1les upstream tram Carlsbad , Tom Green County . Datum or gage i8 2,000. 8 teet above mean sea level , datum or 1929 . 

na ~e area . 1, 529 square m1les, or which about 123 square m1les is probably noncontribut ng. 

Records ava1lable .- March 1924 to September 1941. 

Average discharge .- 17 year s , 59 .6 second- teet . 

Extremes .- 11l.xlmum discharge during year, 43, 400 second- teet June 5 (gage height, 13.90 teet); no !low at times . l!l24-4l : I"W<imum discharge, 94, 600 second- teet Sept . 26 , 1936 (gage he ight, 16 .0 

teet, !rom highest noodma ·ks known ), by slope- a rea method ; no !low at times . 

Remarks.- Records good except those tor periods or no gage- height record , which are !air. ---urveFsions by pumping above station arrect low- water ! low (pump capacity, 40 s econd- teet), which is also par tly regulated by small reservo ir above station. 

Oll.J Oct . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

0 .1 

·. 1 

.1 

.1 

.1 

.1 

.1 

. 1 

.1 

.1 

. l 

.I 

.1 

. 1 

. 1 

. 1 

. 1 

.1 

. 1 

. 1 

. 1 i> . 1 

. 1 

.l 

.1 

.1 

.1 

.1 

. 1 

. 1 

.1 

Discharge, i n second- feet , water year October 1940 to September 1941 

Nov. 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

• • 2 

1 . 3 

8.8 

6.6 

2.7 

2.3 

2 . 0 1.7 

1.7 

Dec. 

1 . 7 1. 5 1. 6 1.7 

2 . 0 

2.6 

3 . 0 

3 .6 

3.6 

3 . 0 

3.6 

3 . 6 4.7 

4 . 7 

4 .1 

3 . 6 3 . 6 

4 . 1 4.1 

4.6 

4.6 

3 .4 

2 .9 

4 . 0 

4 . 0 

2 . 9 

6 . 0 5 .4 

4 . 5 5 . 9 

5 . 9 

Jan . 

3 . 9 3 . 9 4. 6 3.4 2 . 8 

2 .8 

2 . 8 

2 . 8 2 .4 

2 . 0 

2 . 0 2 .4 

2 . 8 2 .4 

2 . 0 

1.7 

1.7 

1 . 7 

2 . 0 

2 .0 

2 . 0 2 . 0 2.0 

2 . 0 2 . 0 

1.7 

1.7 

2.4 

2 .4 

2 .4 

6 . 0 

Feb . 

e? 

7.8 

5 . 6 5 . 0 1;.0 

4.4 

•. o 

Mar. 

• • 5 

5 . 2 4. 5 4. 5 

4. 5 

3 . 4 4 . 5 6 . 2 5. 2 4.5 

3.9 

3 . 9 3.a 3 . 9 

16 

773 

136 

44 

25 

16 

13 

Apr . 

10 

10 

8.3 S . 3 7 . 5 

6 . 7 6. 9 

5. 9 

5.9 

5.9 

5 .2 

4 . 5 6 . 2 

5 . 2 l , 040 

172 

40 

22 

19 

12 

12 

10 

9, 4 9 •• 

9 . 4 

2,140 1,aso 

130 

57 

36 

llay 

26 

528 

909 

203 

78 

44 

32 

27 

2~ 

19 

18 

~6 

16 

13 

12 

12 

12 

12 

10 

10 

2,970 

63 

25 

19 

15 

15 

13 

12 

10 

10 

9.4 

June Ju ly 

ti7~ 10 85 10 51 !4 , 180 34 

tl07 31 

46 

37 

902 

139 

. 57 

36 

26 

24 

274 

273 

75 

43 

33 

27 

24 

21 

20 

21 

20 

18 

16 

16 

14 

24 

28 

20 

17 

17 

19 

20 

21 

18 

16 

16 

l4 

13 

12 

12 

12 

ll 

8.6 

7.8 7 . 7 

7 . 6 

6 . 7 6 . 6 

a6 . 2 as.e a5 .4 

Aug . 

os.o a4 . 6 

a4. 2 a3.8 

3 . 4 

3.9 

3 . 9 

3 . 9 3 .9 

4. 0 

3 .4 

1.6 

6 . 0 

12 

6. 9 

6 . 1 

5.4 

4.7 

4.8 

4. 6 

•. a 4 . 8 

5 . 6 7.9 

7 . 1 

4.9 

24 

253 

182 

31 

16 

Sept. 

ll 

8. 9 8 . 2 7 . 4 . 

6 . 6 

6.9 

5 .3 

4. 7 6 .0 

5 . 3 

5 . 4 6.8 

7.6 

6 .8 6 . 1 

36 

24 

14 

ll 

9 . 3 

e.5 7 . 7 

7.7 

e.s 7 . 7 

7.7 

7 . 7 7.7 

? . 7 

7.7 

Mon th Secondtoot-days Maximum Minimum llean Runortin 

aor&-feet 

October....... . .•.... ~ .•.. . .... November .... . ............ . ..• • .••. •. .•. .... 

Decembe r .. , . ... ... ........ • .......•..•..... 

3 . 1 

27. 7 

113.4 

0 .1 

8. 6 5 . 9 

0 . 1 

0 

1.5 

0.10 

.112 

3 . 66 

6.1 

55. 

226 

Calendar year 1940 . ......... .. .... . ... .. ,266 .~ 1 ,440 0 14.4 10 ,450 

- ------ January . .......... . . . ....... .... .... ?7 . 6 s . o 1 • 7 2 . 50 154 February .. ........ .......... ... ....... 203 .0 87 2~ 403 llarch . . . .. . . .. . ....... ... ... .. .. . . . . . . . . . . . 1 , 120 . 6 77.:5 3 . 4 36.t 2 , 220 Apri l.. ................ . . . ......... .... ... 5 , 662 . 7 2 , 140 4..5 189 11,230 

Way .. ..... . ................... .. ... . ... ... . 5 , 140 .4 2 , 970 9 . 4 166 10 , 200 June . ... .. .... . ..... . 0 .• •.•..•. 0 .. 0 . ... . ... 6 , 516 . 6 4,180 .~ 217 12 , 930 July . . . ........ . .... .. .............. ... 1 , 322 . 4 783 5 . 4 42 . 7 2 , 620 Au&ua t .. ....................... . ........... 637 . 6 263 1 . & 20 .6 1 , 260 

Seple•be r . . .............. ... . .... ......... ·1---2~7-•__9-+--36--+-- '--l---9- +--5-_6 __ 

Water year 1940-41.. ... ..... .. .... ...... 21 , 100 . 0 4, 180 0 57 . 8 41 850 

Peak diecharee ·- Apr. 15, (1:~0 p .m. ) 2 , 720 sec .-ft. ; Apr . 25 , (11 :50 P· =·> 6 1350 eeo.-ft.J M.ay 21, 

(7 a.m.) 10,92 aeo .-tt.: June 5, {1 :40 p.m.) 43,400 aeo . -rt . ; June 10 , 73 P·=· l 2 , 980 eec .-rt. a No gage-he ight record ; dleebsrge compu ted on bash or known range 1n atage, engineer's notes , ud reco rda for au.tion at Ste rling OltJ• t Prag.mentary gage-height recor(1; discharge eompu tod f rom pa_rt. ••t1.aated ga4_e he ights. 

~- D1acharge ror perJo<1 Oct. l-31 repre eenta estimated aee ge Wlder oootn-'ol . 
116 COLORADO RIVER BASIN 

Pecan Bayou at Br ownwood , Tex . 

Location .- Water- stage r ecorder above spillway or city dam, lat. 31 °44 ' 10", long. 98°58 ' 30", at bri dge or Gul!, Colorado & Santa F'e (F'ort Wor th & Ri o Grande) Railway , 1 mile nor th or Brownwood, Brown County , 6 miles downstream rrom Salt Creek , and 10 miles downstream rrom Brownwood Reservoir. Datum or gage !a 1 , 318 .58 reet above mean sea level, datum or 1929. 

Drainage area .- 1, 614 square miles . 

Records available.- May 1917 to J\me 1918, October 1923 to September 1941. 

Average d ischarge . 16 years (1924--28, 1929- 41), 228 second- rest. 

Ex t r emes .- Maximum discharge during year, 26 .500 second-teet May 4 (gege he i ght, 15 .00 

f eet )· mi nimum , 1.9 second- reet{regulated) Oct . 16, 17. 19i?- l8! 1923-41 : Maximum discharge , 52, 700 second-rest Oct . 14, 1930 (gage height, 16 .92 reetJ , rrom rating curve extended abOve 38 , 000 second- teet; no now at times. Maximum stage known, 21. 7 reet 1n September 1900, according to !n!ormat! on rurn !shed 

by Oul!, Colorado & Santa F'e Railway co . F'lood or July 3, 1932, ·pr obably the greatest known reached a dischar ge or about 235 ,000 second-rest as !t enter ed Brownwood Reser- voir !computed rron: rate or change or contents !n reservo ir; data !Urn!shed by engineers or Brown county Water Impr ovement Distr ict No . 1) . 

Remarks.- Recor ds good except t hose below 10 second-teet, Which are poor , Stage- discharge ----reiiition ror low uows a rrected by oceasional accumulation o r dr !!t on dam . F'low r egu- l a ted by Brownwood Reservoir (capa city, 140, 000 acre-reet) . 

Discharge in sec ond-t ee t water year Oc t ober 1940 t o Septe11be r 194.1 

Day Oct . Nov . Dec. Jan . Feb . Wa r . Apr . llay June J uly Aug . Sept. 

1 8 . 9 16 2 . e 4 . 7 S4e 370 10 4 1 , 770 330 466 4 .7 29e 

2 7 .4 4.7 2 . e 4 .7 55 324 337 1 , 820 356 410 6 . 0 298 

3 7 . 4 3.7 3 . 7 7 . 4 26 305 311 10 , 600 473 356 7 •• 298 

4 7 . 4 3 . 7 3 . 7 7 .4 1e 2g2 29e 21 , 900 473 330 7 .4 2ge 

5 7 . 4 3 . 7 3 . 7 6 . 0 2e 292 29e 12 , 300 ~0 337 7 . 4 292 

6 7 .4 2 . e 3.7 7 . 4 147 167 29e 4 , 840 1 , 060 337 e.g 292 

7 6 . 0 4 . 7 3 . 7 8 . 9 147 7 .4 292 2 ,eeo eoo 337 e . g 2g2 

e 6·:o 7 .4 3 . 7 e . g 147 6.0 298 1 , 890 596 337 7 .4 29e 

9 6.0 11 3 . 7 e . 9 143 4 . 7 217 1 , 330 4g6 330 6.0 343 10 6 . 0 e . 9 4. 7 e . g 143 4 . 7 286 ge• e 7 g 330 6. 0 ,05 

11 7 .4 12 s . o e . g 143 31 2g2 760 eso 3 43 6. 0 29e 12 6 . 0 6 . 0 7 . 4 e . 9 143 267 151 620 e1o 330 6.0 29e 13 6.0 3 . 7 12 11 138 273 eo 496 638 3:SO 7 . 4 . 29e 14 6.0 3 . 7 7. 4 e . 9 172 273 2e4 431 see 330 11 2ge 15 3 . 7 6.0 162 e . g · 280 280 1g7 376 564 330 26 29e 

16 1 . g 6 . 0 16 6 . 0 280 2e5 2 , 6 20 343 2 , 060 330 11 29e 17 1.9 6 . 0 7.4 6. 0 286 2g2 2 , 010 337 2 , 190 330 6 . 0 2ge 1e 2 . e 4 . 7 6. 0 6 .0 286 29e 1 , 370 337 1,560 3 24 6 . 0 29e 19 3 . 7 2 .e s . o 6 . 0 247 2g2 1 , 550 73 1 ,080 337 4 . 7 29e 20 3 . 7 3 . 7 4. 7 6 . 0 111 292 1 , 710 3 43 770 337 3 . 7 298 

21 4. 7 4.7 4 . 7 6 . 0 109 29e 1 , 280 3 , 970 580 324 3.7 29e 22 6 . 0 4.7 6 . 0 6 . 0 440 298 glo 5 , 780 575 324 4. 7 23e 23 7 .4 322 . 0 6 . 0 6 . 0 1 , 210 305 692 3 , 200 45g 324 2 . e e .g 

24 11 55. 0 s . o 4 . 7 1 , 100 184 580 2 , 130 383 324 4 . 7 115 25 14 67. 0 6 . 0 6 . 0 e 70 50 466 1 , 450 370 324 ·3 . 7 286 

26 11 16 16 6 . 0 683 702 371 1 , 000 3 g6 2le 3 . 7 2e6 27 11 6.0 30 7 .4 556 1 , 270 1 , 190 720 1 , 190 14 20 286 28 11 3 . 7 e . g 7 .4 452 1 , 160 3 , 910 556 1 , 160 e.9 42 280 29 4 . 7 3 . 7 7.4 7 .4 - 525 4 , 210 452 e20 e .g 119 280 30 6 . 0 3 .7 6 . 0 8 .9 - 43e 2 ,560 383 5g6 s . o 305 1ti4 31 11 - 4.7 20g - 305 - 3• 3 - 4.7 306 -

Month Second- Max i•ua lfini•ua lie an Runoff l n toot-days aore-teet 

Oc tobe r . . . .. .. .. ... . . . .. .... ... ... ... ...... 210 . e 14 l,g 6 .80 ue November ... ..... ..... ....... ... ..... .. ..... 607 . 7 3 22 2 . e 20 . 3 1 , 210 December ........ . . . ............ ... .. . ...... 372 . e 162 2 . e 12.0 73g 

---- --- ------ ------ ------ ------ Calendar year lg4o . . . ... . ... . .. . .... . . . . 54 , 259 . 3 4, 770 0 148 107 , 600 

------- ------ ------ ------ -- --- - January .. ....... ................... ... . .... 424 . 6 209 4 . 7 13. 7 e42 February ... ................ ............ . ... 9 , 21e 1 , 210 1e 3 29 1e , 280 

Ma rob ... ....• . ...... ... .............. .l' . ... 9 , 891 . 8 1 , 270 4 .7 31~ 19,620 April .... ..... ................. ........... 2\:1 , 172 4 , 210 eo 972 57 , 860 

May ..... ..... ... . ......................... 8 4 , 41 4 21 , 900 73 2 , 723 167 .•oo June ... . .......•..•.............•.. . .. . . . . . 23 , 492 2,190 330 7e3 46,600 

Jul y .. ....... · .....•..•.......•. .......... .. 8 , 771.5 466 4 .7 283 17 ,400 August ..... ...... .... ....... . .... .... ... 97 2 . 2 305 2. e 31. 4 1 , 930 Septeaber . . .. ... .. . . .............. . .... .. .. 8 , 236.9 3 43 e. g 275 16 , 340 

Water year 1g 40 - 4l ... ... ................ 175 , 783 . :5 21 , 900 },g 4e2 348 ,600 

Ponlc d.1aehargo. - Apr . 28 (9 :30p. m. ) 5 , 700 aoo . -rt.; Ma y 4 (7 a.m. } 26 , 600 aoe. - tt. ; May 22 (:5 a .m. } 7 , 100 ae o.-tt. 
COLORADO Rl VER BASIN 117 

San Saba River at Menard, Tex. 

Location.- Water-stage recorder, lat. 30°55', long . 99°47', on bridge on u.s. Highway B3 in Menard, Menard County, 0 . 7 mlle downstream !rom LAs Moras Creek. Datum or gage Is 1,863.05 !eet above mean sea level, datum o! 1929 . 

Drainage area.- 1,151 square miles. 

Records avallable.- Septembe·r 1915 t o September 1941. 

Average discharge.- 26 years, 75.3 second-teet. 

Extremes.- Maximum discharge during year, 7 1000 second-teet May 3 (gage height, ll. 70 t eet); minimum, 5.8 eecond-!eet Oct. 17 \regulated). 

1915-41: Maximum discharge, 117,000 second-teet July 23, 1938 (gage height, 22.2 !eet, present site and datum, !rom !loodmsrk), !rom rating curve extended above 60,000 

second-teet on basts or slope-area determinations at gage hetghte 21.0 and 22 . 2 reet; no !low at times. 

Maximum stage known, 23.3 teet, present Bite and datum, June 5 or 6 , 1899, according to ln!onnatlon !urntshed by local residents. 

Remarks.- Records good. Low !low during 1 rrlga tlon season regulated by diversions to ---rroyeB Canal, 4 miles above Menard. About 4,300 acres above and 7,700 acres below gage have been dec l ared I rrlgated (see records or Noyes Canal at Menard) . 

Discharge , in second-teet. water year October 1940 to September 1941 

~ Oct . Nov. Dec . Jan . Feb . Mar. Apr . May June July Aug . Sept . 

1 7.1 15 40 17 53 41 50 67 31 30 24 56 

2 6. 6 14 59 18 51 41 49 94 51 31 ~ 35 

3 6.6 14 59 18 43 42 49 2 ,450 33 40 ~ 35 

4 6.8 14 59 18 39 41 46 313 38 45 24 34 

5 8.3 17 59 18 59 40 45 163 54 56 24 ~ 

6 8.3 17 58 17 42 63 45 196 37 34 24 ~ 

7 8.0 18 50 17 40 61 44 U6 69 34 24 29 

8 7.6 28 17 18 42 47 45 94 37 54 25 20 

9 7 .3 34 17 18 42 43 44 so 53 54 26 44 

10 8.3 35 18 18 41 42 36 74 55 !39 26 43 

11 8.5 39 23 17 40 40 26 o73 58 49 25 32 

12 8.5 38 23 18 47 42 25 o73 39 39 24 31 

13 7.1 37 19 19 48 41 ee o72 36 35 26 31 

14 6.4 38 18 20 46 41 27 o72 34 34 50 29 

15 7.6 38 19 19 40 42 25 72 44 55 29 29 

16 6.6 38 18 17 40 42 29 72 82 54 27 32 

17 6.4 38 17 17 58 48 28 74 4 2 35 26 37 

18 6.4 59 17 17 56 66 1!4 60 37 54 26 :5,150 

19 6.8 40 17 17 57 58 29 4l 55 68 25 1,1!40 

20 6.8 40 17 17 56 60 28 59 55 55 25 169 

21 7.8 41 17 17 41 45 25 58 54 32 26 84 22 7.3 41 17 17 42 46 25 58 54 51 27 56 

23 8.0 42 17 17 47 46 27 38 36 50 26 68 

24 8 . 3 46 16 ~7 45 43 27 57 56 50 o27 88 25 16 47 17 18 n 64 27 57 55 29 28 5 6 

26 16 41 17 ~ 42 1,000 43 56 58 29 36 50 

27 14 40 18 37 42 329 1,370 35 41 28 39 48 

28 1.4 39 17 38 41 134 275 34 38 25 45 48 

29 16 59 17 38 so 139 34 35 25 40 47 

30 15 39 17 38 60 88 33 31 1!4 37 46 

31 14 18 41 53 32 24 36 

Month Second- llaxi11ua IUniaua Mean Runoff in toot-<lays acre-teet 

October . . . . ................ .. . ... ...•.. . . 282.4 16 6.4 9.H 560 

Moveaber .. . ..............•..•... . . . . . ... 1,006 47 14 33.5 2 ,000 

Deoeaber .................•..•..... , ... . .. 692 40 16 22.3 1,370 

------- Calendar year 1040 .............. ........ 11 ,4 35.5 612 6.4 31.2 22,680 

------- January ... ....... . ... . ...................... 656 41 17 21.2 1,~00 

February . . ... . ...... . ..... . . .. . . . .... ....... 1,181 53 36 4 2. 2 2,~40 

llaroh . ........•.. . . . ........•..•..•.. .... . . 2 ,831 1,000 40 91.3 5,620 

April. .. . .....• . ...... . . ... ••. .• ..•. .. . . ... 2, 766 1,370 24 92.2 5 ,490 

May •.. . .. . ••..••••...••..•. . ••.• . .•. . •. . ..• 4,697 2 ,4 50 32 152 9,320 

June ...... .... o •• o •• • • • ••••••• •• • ••• •••••• , 1,198 82 31 39.9 2 , 380 

July ...... ....•..• . .•.. ... .. . .. .. . . . . ... . . . 1,062 68 24 34.3 2 ,110 

August ................... •. . • . .•..•. . .. . ... 873 45 ~ 28 . 2 1,730 

September . .......... . .... ·· ···· ··········· · 5,71~ 3,150 20 190 11,330 

Water year 1940-41 . . . . . . . . . . . . . . . . . . . . . . 22,957.4 3,150 6.4 62.9 4 s, 550 

1 ,bOOk .:!~~}i~fe§;p~rie ,9 <~ ::)· ~. ~66 ~e~~:r;:t·; Apr. 27(1:50 p.a. 4,o3u eeo.-f<.; ,.,. o '" o . a.) 

a lo gage-belght record; dlacharge coJqputed on baa1a or recorda tor Royea Canal at 1"fenard and 

wea thor recorda. t Prag:mentary gage-height record; dlecharge computed from partly eati.mated gage height. 
118 COLORA DO RIVER BAS I N 

San Saba River at San Saba , Tex. 

Location.- Water-stage re corder, l at . 31 °12 ' 10', long. 98°42' 15', at bridge on San 

Saba-Chadwick Mill highway, three-Quarte rs or a mile no rtheas t or san Saba, San Saba 

county, and 15 miles upstream !rom mouth . Datum or gage Is 1 ,153 . 3 teet above mean sea level , da tum or 1929 . 

Drainage a rea.- 3, 046 square mlles. 

Records ava ilable .- August 1930 to September 1941. December 1904 t o December 1906 and 

September 1915 to August 1930 a t s l te 4t miles upst ream. 

Average discharge.- 26 years (1915-41) , 295 second- t eet . 

Extremes.- Maximum discha rge duri ng year, 27 , 200 second-tee t Apr . 28 (gage height, 33. 25 teet); minimum, 43 second-t eet Oct. 10. 1904- 6, 1915-41: Max imum discharge, 203 ,000 ~ ::d-teet July 23, 1938 (gage he ight, 45.18 t eet , !rom n oodmarks a t nighest stage known ,, by slope-area method; no now Aug. 9 , 10 , 1918 . 

Rema r ks .- Re cords good except those above 500 second -teet, wnlcn are !air. Dive rs ions 

---aooVe station tor lrrlgatlon and munl cl pal supply atrect low now. 

Discharge in second-teet water year Octobe r 1940 to September 1941 

Day Oct . Nov. Dec . Jan . Feb . lia r . Apr . llay June July Aug. Sept . 

l 5~ 461 176 226 3.60 185 ~22 960 391 360 162 188 

2 53 212 167 219 825 181 300 835 83 330 1 56 1 77 

3 52 114 157 205 423 183 78 4,620 5 25 31 5 152 169 

4 48 95 153 205 322 180 262 3 , 790 1, 24 0 330 1 51 162 

5 47 85 151 198 278 171 2(8 2 , ?00 665 ~~8 150 15~ 

6 48 86 148 197 262 271 '240 1,900 545 315 155 151 

7 49 87 144 192 255 1,220 23~ 1 , 260 608 300 159 147 

8 49 94 142 190 24 0 47 4 226 1,010 1,190 g278 153 144 

9 46 135 138 184 !33 3 22 219 825 805 g262 15~ 180 10 43 194 135 180 23~ 278 212 725 625 g255 153 421 

ll 44 183 311 173 21 2 2(8 212 665 1,180 811 15~ 345 

12 4 8 149 338 170 212 226 212 625 777 786 147 255 

13 49 30 262 176 198 212 212 805 491 ~68 146 322 

14 48 115 226 1 88 194 205 205 585 407 ~22 495 240 

15 49 110 672 195 187 205 212 545 912 292 362 212 

16 52 105 725 178 190 198 262 527 3 ,270 300 226 192 

17 64 103 415 167 188 205 330 509 1,660 g285 195 191 18 54 101 ~~ 160 183 3 44 285 491 665 g262 178 365 19 48 100 155 178 473 255 491 473 g248 166 2 ,820 20 so 100 248 153 176 375 278 545 407 1,140 1 57 2 #460 

21 4 8 101 226 153 174 330 292 1,190 375 417 1 52 788 22 46 103 219 153 178 300 2(0 1,:no 352 315 150 455 23 44 259 205 155 240 278 226 705 345 a255 151 352 24 45 948 198 152 300 262 255 565 3~8 a219 15~ 509 25 76 1 , 000 195 150 278 255 2(0 491 330 a.205 146 4~1 

26 414 454 219 151 2(0 581 803 455 322 a198 1 55 330 27 151 292 360 151 21 2 1 ,160 4,~40 439 3,780 al95 939 292 28 117 233 352 153 198 1,290 15,700 423 2 , 230 190 585 262 

29 354 205 285 153 - 656 3,280 415 641 184 402 240 30 176 ~911 24 8 144 - 439 1,460 407 423 178 255 233 31 1 21 233 153 - 368 - 399 - 170 212 -

Wonth Second- Maximum IUnimu..m lie an Runoff in root-days acre-teet 

October .......... . .. . . . .. . . . . . . . . . . . . . . . .. 2,586 414 4~ .4 5,130 November ..... . ... ..... ................ .... 6 , 545 1 , 000 85 21 8 12 , 980 Decembe r. .... . .. .... . ... . . ... ....... ........ 8 , 033 725 135 259 15 ,030 

------- ------ ------ ------ ---- - - Calendar yea r 1940 . . ... .... ... . ....... 71 , 1.24 3 , 270 43 194 141,100 

------- ---- -- ------ - ----- -- -- -- January . . ... .... ...... . ... ... . . . . . ....... . . 5 , 3 79 226 144 174 10,670 February ... . . . . ······ ······· ············· ·· 6, 969 6 25 174 249 13 ,820 March .. ..... ..... • • • • • • • • • • • 0 • ... . . . ..... 12, 045 1 , 280 171 389 23,990 Ap ril . .... ... .. . ........... ..... ..... ...... 31 , 739 15 , 700 205 1,058 62,950 May . ... .......... .. ... . .... .. . . . . . . . . . . . . . . 3 1, 012 4,620 399 1,000 61 , 510 June . . . · · · · ···· ....... ..... .... ··· ··· ······ 26,155 3 , 760 3 22 872 51, 880 J uly . .. ·· ···· ··· ...... . . ... .... .. . ....... 10,423 1,140 170 336 20,670 August .. ... . .. ..... .. . . . . . . . . . . ...... . ..... 7 , 069 939 146 228 14 , 020 September . .... .... ...... .... .. .. .. . . . ... . . . 13 , 1 88 2,820 144 440 26 ,160 

Water year 1940-41 ...... .... .. .. . ...... 161 , 143 15,700 43 441 319 ,600 

4 ,K;Qk e~~:rt:fej~!Pf6 ~ ~:~ ~ 9o 6 ~~~~~~t~:c~; · 2? ,l ;.~: >P7~5lo ~~-~~~ ;-;;~t. ~b 16~~oP;~~-l} 3 , 260 eec .-rt . a No gage-height record; discha rge compu ted on basis or recorded range in stage , a vailable gage 

heights, and wea ther recorde. g COJnPUted from graph based on gage readings. 
COLORADO RIVER BASIN 119 

Noyes Ganal at Menard, Tex. 

Location.- Wa te!"-stage recorder, lat. 30°55', long. 99°47', at Intersection or Canal and 

oay Streets In Menard, Menard Cour.ty, 4t miles downstream !rom headgates . Datum or gage Is 1,878.1 teet above mean sea level, datum or 1929 . 

Records available.- March 1924 to Sept ember 1941. 

Average discharge.- 16 years (1924-37, 1938-41), 15 .0 second-teet. 

Extremes .- Maximum dally dis charge duri ng year, 29 s econd-tee t June 7, Sept. 19; no now at t!mes. 

1924-41: Maximum dally discharge (exclusl ve or times canal was submerged by waters ot San Saba River), 50 second-tee t Apr. 15, 1925 (prcbably arrec t ed by local runotr between point or diversion and sta ti on); no tlow at times. 

Remarks .- Records good. Discharge r epresents tlow diverted !rom San Saba River not ---riiCiiidl ng local runort be twe en po int or di versi on and station. Canal diverts water !rom ri ght bank or San Saba Rlve r 4 miles above Menard, t or Irrigation near Menard; 

10 a cres Irrigated above station. 

Disohaf'&& , in second-teet, water year October 1940 to September 1941 

Da Oct. Nov . Dec . Jan . Feb . Mar. Apr . llay June JuJ_y Aug . Sept. 

1 23 23 0 24 0 0 26 22 16 0 

2 22 23 0 24 0 o . 2 26 22 17 0 

3 22 23 0 24 0 e 2 . 0 27 23 16 0 

4 22 24 0 24 0 e4.0 26 2~ 16 0 

5 22 24 0 23 0 1.1 26 22 16 0 

6 22 24 0 23 0 1.2 o 26 21 17 0 

7 22 24 10 23 0 .a 29 21 17 7.6 

8 20 24 22 23 0 .5 27 20 18 15 

9 22 24 2~ 23 0 .4 26 20 16 o19 

10 23 15 24 23 8.4 . 3 o27 ollQ 17 19 

11 24 .6 24 23 17 . 2 28 22 17 15 12 24 0 24 23 16 .2 27 20 16 15 13 24 0 24 24 18 .1 26 20 o17 16 14 24 0 24 24 19 .1 25 20 20 1 5 15 24 0 24 23 19 0 o 25 19 19 15 

16 24 0 24 2~ o21 0 o26 19 16 17 17 24 0 24 22 22 0 26 18 14 ole 18 24 0 24 22 22 1~ 24 18 H o28 19 24 0 24 23 o24 25 24 o20 14 29 20 1M 0 24 23 24 26 a24 17 H 26 

21 24 0 24 23 22 26 a24 16 16 22 22 23 0 24 23 22 26 a24 16 17 20 23 25 0 24 23 22 26 23 16 16 o20 24 23 0 24 2~ 25 26 24 16 17 23 25 24 0 24 23 22 26 25 16 16 20 

26 24 0 24 14 o25 27 o23 15 ~.0 19 27 24 0 24 . 1 o22 27 23 16 e2.4 19 28 o24 0 24 0 ol 2 27 23 18 o2.2 19 29 24 0 24 0 1.2 27 22 18 . 2 19 30 23 0 24 0 .1 26 22 19 0 19 31 25 24 0 26 19 0 

Month Second- Ma.ximum IUn_imum Moan Runoff in toot......c:tays acre-teet 

October ...... . ..... . ..... .. ..... .. ...... .. . 719 24 20 23.2 1,4~0 

Nov..,abe r ............. . .....• . . . . . . . •. . . .. . . 228. 6 24 0 7.62 453 

December ..... . ......... .. •. • .. • .. •. . . .. .. .. 5~ 24 0 16.8 1,160 

---- - -- Calendar year 1940 .............. .. ...... 5 ,715.8 30 0 15.6 11,350 

------- - ------ January .... . ........ .. .....•. .•. .• .. . . . . ... 593.1 24 0 19.1 1,160 

February ........ 0 ••• • •• •• •••••••••• • •••••• • 0 0 0 0 0 

lla roh . . .......... . . o ••••••• o • • o ••• o ••• ••••• 0 0 0 0 0 Apri l. . .... ....................... . 361.7 25 0 12.7 757 

May . · ···· · ··· · •·o•oOoOOOoOooO• Oo oOooo••· 365.1 27 0 11. 8 724 

June . ....... . ........... ......... 758 29 22 25.3 1,500 

Ju ly . · · · ········ · ··••oooOOoOOoOOOO•••······ 592 23 15 19.1 1,170 

August . . . .. ... . . . ... . ... .......... . . . .. .. . . 426.8 20 0 13.6 647 

September . .... . . . . . ... 454 0 6 29 0 15. 2 902 

Water year 1940-41 · ·· · · · · ·· ·· ·· · ·· ·· · ··· 5 ' 101.9 29 0 14.0 10,120 

. l!o gago-heigjlt recordJ discharge computed on basis ot known ra.ngo in otago and weather recorda . 

• Oago boight not represent& t1ve1 d1aoharge computed on 'ba s1 a or recorda ror San Saba River at 

l'fenard, Tex. 
120 COLORADO iuVER BASIN 

Bra<1y Creek at Brady, Tex. 

Location.- Wate!'-stage recorder, lat. 31 °06'15' , bridge on North Bridge Street in Brady, long . 99°19 '55., Just upstream rrom McCulloch County, and 0 .4 mlle downstream 

!rom Livs Oak Creek. Datwn or gage i s 1,646 .50 rest above mean sea level , datwn or 1929. 

Drainage area.- 575 square mlles. 

Records available.- May 1939 to September 1941. 

Extremes.- Maximwn discharge during year, 13, 900 second-teet Apr. 27 (~age height, t eet), !rom rating curve extended above 6,000 second-teet; no now ct. 1-24 . 16 .61 

1939-41: Maximwn discharge, that or Apr. 27, 1941 ; no now at times. 

Maximum stage known, 29 .1 reet, July 23, 1936, present site and datum at site 5 mlles downstream, 66 , 000 second-teet, by slope-area method) . (discharge 

~-Records good . No diversions above station. 

Discharge, in second-teet, water year Ootober 1940 t o September J941 

Da Oct . Nov . Dec . Jan . Feb . Wa r . Apr . llay Juno July Au& . Sept . 

1 0 0.2 'o.2 1.2 24 I. a 9.0 &6:1 5. 4 7.a 0.6 0 .4 

2 0 . 2 .2 1.1 11 1.6 7.5 &280 s. 2 s. 7 . 2 .4 

3 0 .1 .2 1.0 4 . 9 1.5 6.4 675 76 5.6 .1 .1 

4 0 . 2 .2 .a ~.5 1.2 5 .4 1~ 65 6.1 .1 . 1 

5 0 .2 .2 . 9 ~.4 1.1 4.6 288 67 4.4 . 2 .1 

6 0 .2 .2 .a 4.2 20 4 0 2 155 105 ~.5 .2 . 1 

7 0 . 2 0 2 .a ~.4 6.7 4.0 72 ro9 ~.1 .1 . 1 

a 0 1.9 .2 .7 ~.4 0 6 H 96 ~.1 .1 . 1 

9 0 2.4 .2 .6 2.~ 2. 2 3.5 32 40 2.7 .1 9 . 9 

10 0 .s .2 . 5 2. 2 1.7 ~.4 28 ~3:1 2.4 .1 l.a 

11 0 .2 2 . 9 .4 1.9 1.4 3.~ 21 162 6.2 .1 1.2 

12 0 .1 1.3 .4 1. 7 1.4 3.2 19 52 41 . 2 4. a 

1~ 0 .1 .a 1. 3 1.4 1.1 2 17 26 15 .3 2. 4 

14 0 .1 • • 7 1.2 1.1 1.1 21 H 17 a. a 5 .1 5 . 3 

15 0 .1 a3.4 .9 1.0 1.1 7.0 13 15 6 . 9 1. 9 4 0 7 

16 0 . 1 a4.1 .6 1.0 1.1 33 12 88 4.9 .9 ~.a 

17 0 . 1 2.2 .4 . a .. ~ 11 11 2a .7 . 2 3a 

1a 0 .1 1.6 .~ . a 15 4 0 2 10 13 ~.2 .1 136 

19 0 . 1 1.~ .3 .a a.s 23 1 2 16 20 .1 113 

20 0 .1 1.1 ~ .a 5.6 9 . 2 10 12 1 2 .1 49 

21 0 .1 . a .~ .9 4. 6 4. 2 24 9.0 5 . 2 .1 23 

22 0 .3 .a . 3 1.1 4.6 3.7 16 7.0 4.1 . 1 H 

23 0 .a .6 .~ 7.2 4.4 17 13 5 . 6 3.~ .1 12 

24 .6 2.0 . 6 .3 6.0 .6 1a 12 5.2 2.9 .1 10 

25 1.0 1.4 .6 .4 3.2 104 s.a 9.4 4. a 2.6 .1 7.~ 

26 .2 .4 9 .9 . 4 2.a 415 401 a . o 222 2.6 .2 4.a 

27 .1 . 4 7 . 7 .3 2.4 64 4,8?0 7.4 412 2.1 .4 4 . o 

28 2.7 .3 .~ .~ 2 . 2 ~0 ro1 6 . 9 62 1.9 .4 ~.6 

29 ~ 0 2 2.2 .~ 20 155 6.4 20 1.9 .1 3.1 

30 1.2 . 2 1.5 . 4 H a82 6.1 11 1.4 .1 2.7 

31 .6 1.~ 1. 5 11 6.0 1.2 .1 

Month Second- Maximum Minimum lie an Runoff in toot4ays acre-teet 

October .. . . . . . ...... .. . . . . 9.7 3.~ 0 ~1 19 

November . 13 ~ 2. 4 .1 .H 26 

Decembe r . . ... . . . . . . .. . .. ... . ....... 50.7 9.9 0 2 1.64 101 

- - ---- - ----- - - -----

I Calendar year 1940 .. . . . . . . .. . ... 7 , 80a.1 2 , 250 0 21.3 15,480 

- ----- - - - ---- -- - - -- January . . . . . .... 19.~ 1.5 .3 .62 3a 

Februa ry . ....... ·· ········· ·· 99.4 24 .a ~.55 197 

Me.rch ...... . . . . 756 .6 415 1.1 24 . 4 1,500 

April. . .... 6 , 563.4 4 , a70 3.2 219 13 , 020 

llay ........ . . .. . . . .... . . . .. . . . ..... .. ... 2 , 054. 2 675 6.0 66 ~ 4, 070 

June . . . . . . . . . . . . . . . . 2 , 819 . 2 ro9 4. a 94 .o 5 , 590 

July . . . . . . . .. .. ... . .... . .. . . . ...... 195.3 4l 1. 2 6 . 30 387 

August . . . . . ... . ....... . . . ..... . ...... 12 . 6 5 . 1 .1 .41 25 

September . . . .. . ... . . . ....... . .. . .•. . •.. . . 455.a 1~6 .1 15.2 904 

Water year ].940 -41 . ... . ... 1:~ 049 5 4 , 870 0 ~s a 25 , 880 

Peak diechargo. - Apr . 27 {1 p.m. ) 1Z, 900 eec .-ft.; June 7 (4 :30 a.m.) 1,840 eec.-rt.; June 26 

(10 p . m.) 2 , 30 eec.-rt. a No gage-height record; discharge computed on baeh o r recorded range ln etage end weather recorda. 
COLORADO RIVER BASIN 121 

North Llano RIver near Junction, Tex. 

Location.- Water-stage recorder, lat. 30°30', long . 99°47', about 1,000 feet above remains or old Wilson Dam, 3 miles northwest or Junction, Kimble County, and 4 miles upstream 

!rom confluence with South Llano River. Datum or gage Is 1 , 699 .9 teet above mean sea level, datum or 1929 . 

Drainage area .- 914 square miles. 

Records available.- Septembe r 1915 to September 1941. 

Average discharge .- 26 years, 79.9 second-teet. 

Extremes .- Maximum dlscharge during year, 6,120 second- teet Mar. 25 (gage height, 6.57 teet); minimum, 10 second-teet Oct . 15. 

1915-41: Maxlmum discharge, 94,800 second-teet Sept . 16, 1936 (gage height, 29 .2 

?i~~·a~~~:~.slte, based on gage-height relation curve), by slope-area method; no 

Remarks .- Records good . Dl versions !or I rrlgatlon reduce low now materially. 

Discharge . in second-teet. water year October 1940 to September 1941 

Da~ Oct . Nov. Dec . Jan . Feb . Mar . Apr . llay June July Aug . Sept. 

1 15 18 20 2l 25 19 Sl 2:1 38 2:1 16 26 

2 15 15 20 21 25 19 80 65 36 22 15 24 

3 15 15 19 22 24 18 73 470 42 2:1 l4 24 

4 15 16 19 22 2:1 18 69 174 51 2:1 14 21 

5 15 17 19 22 2:1 17 64 134 48 2l 13 1 8 

6 l4 17 19 22 24 35 58 49 44 20 13 16 

7 15 17 20 22 23 24 57 32 4l 19 12 15 

8 l4 32 19 22 24 24 53 28 40 19 13 13 

9 l4 29 19 22 24 23 49 25 36 19 13 31 

10 l4 26 20 21 24 21 48 27 44 27 12 24 

ll 15 23 62 21 24 19 4 8 36 51 89 12 31 

12 15 19 30 21 23 19 H a82 4l 44 12 29 

13 15 18 28 23 21 19 44 a75 36 34 12 23 

14 15 17 26 23 21 18 .. a71 35 164 17 20 

15 14 17 26 22 21 19 .. 69 38 114 25 19 

16 15 17 24 22 20 18 41 69 38 58 22 36 

17 15 17 24 21 19 22 40 66 35 46 19 37 

18 15 17 25 21 19 29 38 64 32 38 18 126 

19 15 17 23 21 19 26 36 62 30 58 17 60 

20 15 18 23 22 19 25 34 60 29 48 16 44 

21 1 5 18 23 21 19 24 34 58 29 36 16 38 

22 15 18 22 21 19 24 34 57 28 32 16 35 

23 15 18 21 20 20 24 35 57 29 30 15 38 

24 15 32 21 20 21 23 35 57 29 27 15 40 

25 17 31 21 20 21 1,400 34 53 28 25 137 36 

26 17 24 21 20 21 1,410 49 49 29 24 231 34 

27 16 22 20 19 20 331 1 , 120 4 8 27 22 154 32 

28 17 21 20 20 19 162 272 46 25 21 176 30 

29 16 2l 20 20 124 126 42 24 19 62 29 

30 15 2l 21 20 104 40 41 23 18 41 28 

31 26 21 2l 94 40 17 32 

Month Second- Maximum IUn imum lie an Runott in root-days acre-tee t 

October ... . . a ••••••••• •• •• .... .... . ....... 479 26 14 15.5 950 

Nov e~~ober . ... . .....................•........ 608 32 15 20 . 3 l, 210 

Dece11ber ... . . .. . ...... . . . ......... ......... 714 62 19 23.0 1 , 420 

--- - --- Calendar year 1940 . . . . ..... .... .. ....... 12,11 2 1,000 ll 33 . 1 24,0:SO ------- January .. .. .. ...... ... .. 656 2:1 19 21.2 1,300 February .. .. .. . . ... .. ... . ..... .. .. ... •.. . .. 605 25 19 21.6 1,200 March ... . . . .........•... . . . . . . . . .. . . . ... 4,152 1 ,410 17 134 8 , 240 April ... . ...•.. . •••.. .. ••.•.. , .•. .. •.•• . •• . 2, 827 1,120 34 94.2 5,610 

!lay ..... . .. .. .. ... . . .... .. 2,229 470 2:1 71.9 4 , 420 June . . ···· ·················· ···· ···· ······· 1,056 5 1 2:1 35 . 2 2, 090 July .•.. ••• •• •• ~ • • • • •• • 0 ............ . ... 1 ,180 164 17 38.1 ~40 

August .... .. ······· ········· ···· ······ 1 , 200 2:11 12 38. 7 2,300 September . ............ . . . . ' ' . . . . . . . . . . . . 977 126 13 32. 6 1 , 940 

Water year 1940-41 ... . ...... ......... 16,683 1,410 1 2 45.7 33 ,100 

(9 ~;alc p?!~)~~Sio a~::r~ (4 p . m.) 6,120 sec.-ft.; Apr. 27 (12:30 p.m.) 4, 820 sec.-tt.; Aug . 25 

a ko gage-height record; Llano River neer Junction , discharge computed on bade ot recorded range in stage and recorda for • 
122 COLORADO RIVER BASIN 

Llano Rl ver near Junction, Tex . 

Location.- Water-stage recorder, lat. 30°30' , long . 99°44 ', 960 teet on J unction-Mason county road , 2 miles downstream !rom confluence 

South Llano Rivers, and 2t miles east or Junction , Kimble County. 1 , 636 . 32 teet above mean sea level, datum or 1929. 

Drainage area .- 1, 762 square m!les. 

Records availabl e .- September 1915 to September 1941. 

Average discharge .- 26 years, 235 second-teet . 

upstream !rom bridge ot North Llano and 

Datum ot gage is 

Extremes .- Maximum discharge during year, 7 ,250 second-teet Apr. 27 (gage height , 9.05 teet)· minimum, 65 second-teet Sept. 8, 9 . 19i5-41 : Maximum discharge , 319 , 000 second-teet June 14 , 1935 (gage height , 41.4 rest, present site and datum, !rom tloodmarkS), by slope-area method; minimum, 13 second-teet Aug. 23-28, 1918. 

RemarkS.- Records excellent . About 2,500 acres above and 1,300 acres below station have 

-----oeendeclared i rrtgated. Diversions slightly reduce low tlow. Sl!ght regulation by 

power plant on South Llano Rive r. 

Discharge , in second-tee t . water year October 1940 to September 1941 

Day bet. Nov. Dac. Jan. Feb. Mar. Ap r . llay June July ·Aug . Sept. 

1 70 e1 84 e 3 e7 7]. 141 294 122 e1 eo 83 2 70 77 e3 e1 92 73 135 304 11e eo 78 7e 

3 70 76 e3 e1 S7 7]. 126 e61 124 e1 77 78 4 67 76 e3 S1 e4 70 120 447 1U e4 77 76 5 67 77 e3 e1 e3 70 114 358 135 eo 76 73 

6 67 7e e4 e1 e4 e7 111 312 128 7e 74 69 7 69 7e e 4 e1 e3 e6 107 291 124 7e 74 67 e 67 95 e3 7e e4 7e 105 277 120 eo 7e 66 9 67 94 e1 7S e 4 77 102 258 116 e1 eo 98 10 67 92 e3 77 e1 74 100 249 131 204 7e 9e 

11 67 e9 158 77 7S 74 98 240 1.36 21e 77 113 12 67 84 135 77 77 73 98 246 124 139 74 11e 13 67 e3 107 e3 76 73 97 223 11e 113 92 102 14 67 e1 97 e3 73 7]. 97 212 111 213 92 9 4 

15 69 eo 100 eo 73 73 97 198 111 314 e1 e9 

16 67 eo 95 7e 73 73 95 190 114 158 81 113 

17 69 eo 90 77 71 eo 95 1e5 111 133 eo 137 

le 69 eo e9 76 71 95 94 1eO 105 120 77 232 19 67 eo 87 77 7]. 92 90 17e 102 160 76 n66 20 67 e1 S6 7S 7]. S7 S9 170 100 162 76 n35 

21 67 S1 S6 so 71. S6 S7 165 9S 126 76 120 

22 67 e3 S4 77 73 S6 S9 160 97 114 76 111 23 67 S3 S3 77 76 S3 92 158 97 109 76 111 

24 70 S7 S3 77 77 S1 92 156 92 104 74 116 

25 76 104 e1 76 74 936 92 150 7S 98 97 109 

26 74 94 S3 76 74 1 , 570 124 143 e6 94 400 105 

27 71 S7 so 76 73 526 269 139 S7 90 2lS 104 

28 73 S6 so 76 71 261 2,070 137 S7 e7 236 100 

29 7]. S6 7e 74 - 193 532 131 e4 e4 128 9S 

30 70 S4 so 76 - 168 358 12e S1 e3 100 9S 

31 115 - S1 77 - 152 - 122 - eo S9 -

lfonth Second- Wax.imWD Miniau.a lloan Runor r in root-days acre-te e t 

October . .. . .. ... .. ....... . .. ........ .. . .. .. 2,178 115 67 70 . 3 -i , 320 

November .. .... . ......... ..... ....... ... ... 2 , 517 104 76 e3 . 9 4 , 990 

December. .... . .. . .. . ....... .......... ... . . 2 , 774 158 7e S9 . 5 5 , 500 

-- ---- - - -- --- ------ ------ - ----- Calendar year 1940 ········· .... .. ... . . ... 39,725 1 , 070 67 109 78,790 

-- ---- - - - - ------ --- - - - ------ January . . .... . .... ........... .... .. ....... . 2 ,430 S3 74 78 . 4 4 , 820 February . ········ ·· ······ ···· ··· ····· ··· ··· 2,172 92 71 77.6 4 , :uo March. ... . . . . . . . . . . .. .... .. . .... .... ...... .. 5 , 690 1,570 70 1S4 11 , 290 Aprl l. . .. ···· ···· ···· ·· ··· ··· ······· ···· ··· 6,916 2 , 070 S7 197 11 , 730 May . . ... .. ..................... ............. 7,262 S61 122 234 14 , 400 June ... ····· ········ ····· ········ ·· ·· ···· ·· 3 , 277 141 7S 109 6, 600 July . .. ... ...... .... . . . . . . . . . . . . . . . . . . . . . . 3 ,726 314 7S 120 7 , 390 August . ......... ....... ........ ............ 3,148 400 74 102 6 , 240 Septembe r ... ··· ······ .. .... ......... ...... 3,156 232 66 105 6 , 260 

Water year 1940 4~ .............. ........ 44 , 246 2 , 070 8 6 121 87 , 750 

Peak d1eobarge . - Mar. 26 (6 p.m.) 3, 940 aeo .-tt. , Apr . 27 (3 p.m. } 7,250 eec . -rt., J1 ay 3 {:5 a .m. ) 1 , 460 eeo .-tt. ; Aug . 26 (12:30 a . m. ) 1,480 aeo .-tt. t ?ragm.entsry gage -height record; diecharge computed !rom partly estimated gage height. 
COLORADO RIVER BASIN 123 

Llano RIver a t Llano, Tex. 

Location.- Water-stage recorder, lat. 30°45 ', long. 98°40' , In Llano , Llano County, 0 .4 

mile downstream !rom bridge on State Highway 81 and 7 miles upstream !rom Ll ttle 

Llano River. Datum or gage Is 970 .0 rest above mean ssa level, datum o! 1929 . 

Drainage area.- 4, 000 square miles. 

Re co rd& available .- September 1939 to September 1941. 

~xtremes.- Maximum discharge during year, 26,700 second-teet Apr. 27 (gage height, 12.64 

f eet) , !rom rating curve extended above 13,000 second-teet; m!ntmum, 6 .1 second-teet (regulated ) July 30, Aug. 9 ; mlnlmum dally, 37 second-teet Oct . l. 

1939-41: Maximum discharge, 26,200 second-teet June 20, 1940 (gage height , 12. 90 teet ) , !rom rating curve extended above 13,000 second-teet; minimum, 5.1 second-teet 

(regulated) Aug. 6, ?, 1940 . Maximum stage known, 41 .5 teet June 14, 1935, according to Information !urnlshed 

by local resident. 

Remarks .- Recorda good except those !or peri od or no gage-height record, which are poor. LOw flow -regulated by power plant halt a m!le upstream. No l arge diversions above 

station. 

Discharge , in second-teet. water year October 1940 to September 1941 

0~ Oct . Nov . Dec . J&A . Pob . War . Apr . llay June July Aug . Sept . 

1 37 377 213 297 2 , 910 249 405 1,380 310 144 103 226 

2 66 271 196 278 1 , 630 238 375 2,470 290 149 117 172 

3 81 199 168 267 694 234 360 6,180 690 162 92 139 

4 59 142 160 260 496 224 341 2,290 775 171 77 104 

5 58 130 172 267 436 210 319 2,910 508 165 113 147 

6 53 116 131 256 440 2,910 31.2 2,310 396 157 67 103 

7 60 114 172 245 409 920 312 1,270 352 135 103 97 

8 52 139 136 234 390 500 293 994 325 141 108 96 

9 64 182 145 227 364 390 282 866 300 126 56 150 

10 .. 245 156 216 334 334 275 775 756 124 113 177 

11 44 196 7,570 210 316 297 271 708 1,120 626 65 369 

12 60 166 1,370 210 301 282 275 679 616 974 115 257 

13 61 126 741 234 282 267 290 644 413 602 59 226 

14 69 122 585 282 260 256 286 616 336 358 114 210 

15 58 117 3,290 241 241 249 286 664 305 408 144 234 

16 85 102 1,180 234 241 260 864 634 1,290 647 112 178 

17 82 121 688 199 230 363 409 50S 755 508 169 162 

18 77 89 645 181 224 2,250 326 489 435 336 101 756 

19 76 103 480 178 220 864 301 471 325 266 65 1 , 4-4:0 

20 77 108 HO 167 226 680 308 459 285 244 115 609 

21 76 114 401 165 252 492 a260 1,550 285 280 97 418 

22 76 128 371 172 278 452 a252 829 300 239 54 310 

23 76 1 ,060 341 168 493 416 a241 514 257 239 79 280 

Z4 76 1,230 319 171 538 382 a230 495 237 174 78 325 

25 128 3,410 308 184 371 367 a224 430 233 155 74 374 

26 139 839 595 159 319 821 a904 402 223 140 100 285 

27 189 419 1,090 183 293 1,820 10,100 380 244 142 2,070 234 

28 1,370 315 484 156 267 877 10, 300 368 208 130 1,360 208 

29 568 260 382 166 595 3,9~ 347 1n 139 930 185 

30 192 224 334 181 480 1,080 325 145 88 465 181 

31 295 319 196 436 320 95 295 

Wontb Second- l&axiJDUJD Minimum Moan Runoff in 

root.-da.ys aor&-teet 

October . ..... . ... . ...... . . . ...... 4,433 1,370 37 143 8,790 

November . 11,164 3,410 89 372 22,140 

Deoe•ber ...... . .... . .. .. . .................. 23, 472 7,570 131 757 46,560 

Calendar year 1940 .. . . ...... ............ 126,752 9 ,950 346 251 , 400 

---- --- - January ......... . ... . . .. . .•.. . . . .. ... . . .. . . 6,573 297 156 212 13 , 040 

February ... . ... , .... ... .... . ...... . . . . . .. . . 13,454 2 ,910 220 480 26, 690 

March . . . .... , .......... . .. . . . .... · ·· ··· 10,015 2 , 910 210 613 37,720 

Apr H .......• . .••.••.•.•• . •..•..••. ....... 35, 301 10,300 224 1 ,177 70, 020 

lloy .. . . ..... . .. . ...... . . . . . . . •. 33 , 057 6,180 320 1 , 066 65,570 

June .. .......... . ....•..• . ......•....... . . . 12 , 887 1 , 290 145 430 25 ,560 

July . ....... .. .•..•..•..........•.......•. . 8,064 974 88 260 15 ,990 

Au&u.st . ..... . ....... . ...•. . ... . . . .... . ..... 7,610 2,070 54 245 16, 090 

Septe11ber . .................. ............... 8,652 1,440 96 288 17,160 

Water year 1940-41 ........... ··· ·· ·· ··· · 183,682 10,300 37 503 354 , 300 

P~~~.112a,oe•;;o~~;t ~6n!;o a(~2)p~~~~0 ;:~oot!;~.~~: 11 (8 z30 a.m.) 22 , 200 eeo . -tt. ; Apr . 27 

a No gage-height reoord; db charge computed. on baals or engineer' 1!1 note a and recorda tor atat1ona 

upstream. 

498588 0 - 43 - 9 
124 COLORI\DO RIVER BASIN 

Pedernales Rl ver near Johns on Cl ty, Tex. 

Locati on .- Water-stage recorder, l at. 30°18 ' , l ong. 98°24', on bridge on U. S. Highway 281, 1. 5 mi l es north or J ohnson City, Blanco County, and 1.9 miles downstream !rom 

Buffalo Creek. Datum or gage Is 1 ,096 .6 feet above mean sea level , unadjusted . 

Drainage a rea .- 947 square miles. 

Re cords ava llable .- May 1939 t o Sept ember 1941. 

Extremes .- Maximum discharge during year, 21 ,100 se cond-teet Apr. 27 (gage height, 12 .83 

feet), from rating curve extended above 12 ,000 second-teet on basis or one sl ope-area 

de t e rmination a t gage he i ght 17. 53 t eet; minimum, 8 .0 se cond-teet Oc t . 5 , 6 , 20-23. 

1939-41: Maximum dis cha rge, 42, 900 second-feet Oct. 25, 1939 (gage height , 17.53 t ee t, from floodmark }, by slope-a rea methodi· minimum, 1. 2 second-teet Oct. l-3, 1939. 

Maximum stage known, about 33 t eet In· Ju y 1869 , a cco rdi ng to Information tumlshed 

by local resi den ts. 

Rema r ks .- Reco rds good except t hose f or pe ri od or no gage- he i ght record , whi ch a re poor. ---rroaTvers l ons t or Irrigation. 

Discharge, in second-teet, water year October 1940 to September 1941 

Day Oct . Nov . Dec . Jan . Feb . ..ar . Apr. llay Juno July Aug . Sept. 

1 9 . 8 496 80 254 6 , 640 219 390 779 243 109 43 24 

2 9 . 8 114 70 219 1 , 630 214 706 2 , 280 229 106 42 35 

3 9.4 60 64 210 662 210 64 5 5 , 580 1 , 340 100 40 70 

" 8 . 9 43 62 196 498 196 365 1 , 180 290 181 40 34 

5 8.4 37 58 196 440 187 336 2 , 360 254 142 .a 24 

6 8 . 4 31 56 187 459 923 352 2 , 790 238 106 .a 22 

7 11 26 56 175 390 421 8 47 aea 243 95 43 22 

8 11 34 52 172 406 254 359 736 219 92 42 21 

9 11 58 48 164 HO 229 313 655 200 87 42 31 

10 9 . 4 52 .a 156 359 200 301 595 269 85 40 217 

11 8 . 9 38 4,680 152 318 187 290 607 384 278 45 98 

12 8 . 4 32 1 , 090 149 301 183 301 552 254 156 40 64 

13 8 . 4 25 378 230 280 179 324 518 196 209 37 50 

14 8 . 9 24 24a 358 248 176 336 485 175 299 38 42 

15 9 . 8 23 5 , 810 187 243 187 336 453 164 533 46 38 

16 9.4 23 833 156 238 183 307 427 1 , 330 323 37 36 

17 9 . 4 22 384 139 233 1 , 390 307 421 341 216 3 4 35 

18 9 . 4 22 296 126 219 5,980 307 396 210 123 31 300 

19 8 . 9 22 254 126 214 1,110 24a 384 179 98 29 188 

20 8 . 4 22 229 126 210 779 a233 371 168 87 28 87 

21 8 .4 136 200 126 214 639 a :513 1 , 050 152 80 26 60 

22 8 . 4 496 179 123 229 688 } 744 149 75 26 .a 23 8 . 4 998 164 120 423 531 &910 440 142 70 26 46 

24 28 1 , 550 152 117 471 485 365 136 66 25 42 

25 154 589 149 114 313 453 336 336 133 62 25 38 

26 86 336 1 , 150 114 280 640 3 , 480 307 142 60 24 35 

27 52 164 1 , 730 112 24a 647 8 , 680 290 264 56 24 35 

28 101 120 446 120 224 472 3,780 280 152 54 24 34 

29 127 100 324 117 434 1 ,4·40 274 123 50 25 32 

30 78 90 285 112 414 955 280 114 48 25 32 

31 2,620 274 120 402 274 46 25 

Month Second- llax.l.• ua Mini au. lie an Runo rr in toot-days ao rd-t eet 

October ... .... .............. 3 ,4 58 . 2 2, 620 8 . 4 112 6 , 8eo 

November .. . ........ .. .. .... 6 , 783 1 , 550 22 193 11 , 470 

December . . . . ... ... .. ... ..... 19 , 849 5 , 810 48 640 :59 , 370 

------- Cal endar year 1940 ..... .... ....... . .. 74 , 818 . 8 5 , 810 7 . 4 204 u.8, 4o0 

- ------ January . . . . . . . . ......... . . . . .. . . 4,003 368 112 161 9 , 880 February .. .. . . ~ .. . .. . . 16 , 8Z2 5 , 640 210 565 31 , 400 Warch ... ······ ··· · · ·· ... ...... ..... ..... 19 , 111 5,980 175 616 37,910 

April . 29 , 317 8 , 680 233 977 68 , 1 50 

Way . . ... ....... .. .. . ... 27 , 007 6 , 680 27 4 874 63 , 7 30 

June . . ............ . ... ······ ····· 8 ,433 1 , 340 114 281 16 , 0 

July .... .............. . . ........... 4 , 092 533 46 132 8 ,120 

August . . .......... .. . 1 , 068 .a 24 34. 5 2 ,120 

September . ······· · ····· 1 , 838 300 21 61 .3 3 , &60 

Wate r year 1940-41 140,851.2 8,1180 8 . 4 386 -2'79 ,400 

Peale c11achar Dec. 11 (9 a.m.) 15 , 200 eec.-rt.J Deo. 1 5 (8 •·•·> 14,600 aec.-rt.J Apr . 2'7 (2J!50 p.m.) 21 , 100 sec . -r t .; Hay 2 {12 p.m . } 14 , 500 seo.- rt.; l1ay 5 (11 P•••} 1 4,200 aec . - rt. a No gage-height record; dl scbargo computed on baa le or t loodsark , eng1neer'a notea, and weather record. a. 
COLORADO RIVER BASIN 125 

Barton Springs at Austin , Tex. 

Locati on .- Lat . 30°16 , long. 97°46 ' . Springs Issue !rom channel and along bankS o! 

Barton Creek ! or a distance o! 1,000 !eet In Zllker Park at Austin, Travis County . The main spring is near right bank or creek 500 !eet upstream !rom concrete dam !onnlng swimming pool , 1, 800 !eet upstream !rom Austin-Bee Cave highway bridge and 0 .6 

mlle upstream !rom mouth or Barton Creek . 

Records available .- Octobe r 1918 to September 1926 and October 1940 to September 1941 

{discharge measurements only) . November 1894 to Septembe r 1918 and October 1926 to Sep embe r 1940, d ischarge published as miscellaneous measurements . Summary or all 

discharge measu rements pri or to October 1937 Is contained In Water-Supply Pape r 850 . Dally discharge record o! Barton Creek at Austin published !or pe ri od Aprll 1917 t o September 1918 closely approximates the flow o! Barton Springs . 

Extremes.- Maximum discharge measur ed during year, 166 second-teet l1a,Y 10; minimum mea- sured, 22.6 second-teet, Oct . 19 . 1894-1941 : Maximum discharge measured, that o! May 10, 1941; minimum measured, 

12 .1 second-teet, reb . 26, 1918. 

RemarkS .- now or Barton Creek Is measured both above and below springs . Determinations ----orcrrscharge represent total !low o! springs Including Old Ml ll Spring which Is on right bank and about 1, 000 !eet downstr eam !rom main sprlng. now o! spri ngs emerges !rom Edwards limestone outcrop ln Balcones !ault zone and respon1s to local rain!all on Edwa rds Plateau . Water used !or recreational purposes . 

Disoha.rge me asureme nts , in second- feet , ot Be.rton Creek and de termi nation o r die char ge or Barton Spr inge , wa te r year October 1940 to September 1941 

Date Bar t on Crook Barton Creek Bar ton Springs below springe abo .. e springe 

Oct . 5 29 . 8 0 29 . 8 

1 2 25 , 2 0 25 . 2 

1 9 22.6 0 22 . 6 

Nov . 2 67 . 4 31.7 35 , 7 

16 25 .8 0 25 . 8 !leo . 10 142 . 9 68 . 8 74 . 1 Jan . 5 194 .1 112 82.1 

ll 149 . 9 82. 1 67 . 8 

18 114 . 5 44 . 1 70. 4 

25 100 . 8 32 .4 68 . 4 

Peb. 4 182 . 8 122 60 . 8 

15 168 . 8 70 . 5 88 . 3 

22 118.9 51.0 67 . 9 

Mar . 1 142.6 70 . 3 72 . 3 

15 176 . 9 111 65 . 9 

29 357 221 136 

Apr . 6 301 152 149 

12 213 102 111 

llt,7 10 394 228 166 

June 23 202 102 100 

Jul7 2 - 36 . 4 - 3 131.3 3S.O 98 .3 

19 1?4 . 0 8 ? . 1 86. 9 

S1 103 . S 16 , 8 S6 . 5 

Aug . l4 9 4. 2 4 . 27 89 . 9 

2? 79 , 4 1.94 ? ? , 5 

Sopt . 15 ? 3 . 8 1.24 ?2.6 

28 61.2 . 25 60 , 9 
COLORADO RIVER BASIN 

Dry Creek a t Buescher Lake, near Smi thv!lle, Tex. 

Location .- Water-stage recorde r above concrete sp!llway or dam, lat. 30°03 ', long. 97°09' , !n Bastrop-Buescher State Park , 1 . 9 miles upstream !rom mouth and 2.2 miles north ot Smithville , Bastrop County . Datum ot gage is 327 . 9 t eet above mean sea level, datum 

ot 1929 . 

Dra i nage a r ea .- 1.48 square m!les (area above dam). 

Reco rds ava!lable .- October 1939 to September 1941. 

Extr emes .- Maximum discharge during year, 903 second-teet June 7 (gage height, 23 .28 

teet); maximum gage he i ght, 23 .62 teet June 7; no !low at times. 1939-41 : Maximum discharge, 1 , 870 second-teet June 30, 1940 (gage !)eight, 24.82 t eet) ; maximum gage he i ght , 24 .96 t eet June 30 , 1940 ; no !low at times. 

Remark.s.- Records !air. They represent !low into Buesche r Lake . No n ow !rom area except ---aurTng and immediately following preci pi tation . Discharge below gage height 22 . 27 t eet (spillway crest) determined !rom change in contents in lake; that above gage hei gh t 22 . 27 teet dete rmined by algebraic summation o! !low over spillway (computed !rom spillway cur ve) and change in contents in lake (computed !rom capac! ty curve and reduced to equ1 valent second-teet) . No adjustmen ts made t or evaporation or s eepage losses. Capacity ot lake , 255 acre-t eet. No diversions above station or !rom lake. 

Discharge . in second-teet. water year October 1940 to September 1941 

Day Oct . Nov . Dec . Jan . Feb . War. Apr . llay June July Aug . Sept. 

l 0 0 0 0 2 . 8 0 0 0 0 0 

2 0 0 0 0 . 3 0 0 o8 . 9 0 0 

3 0 0 0 0 0 0 0 o12 0 0 

4 0 2 . 2 0 0 0 0 0 e3.l 0 0 

5 0 5 . 0 0 0 0 . 5 0 o.s 0 0 

6 0 0 1.4 0 . 6 3 . 0 0 0 0 0 

7 0 0 1.0 0 0 0 0 0 o60 0 

8 0 0 0 0 0 0 0 0 el.9 0 

9 0 0 0 0 0 0 0 0 0 0 

10 0 0 0 0 0 0 0 0 o25 0 

ll 0 .7 9 . 1 0 0 0 0 .Q e4 . 3 2.7 

12 0 0 1 5 0 0 0 0 0 ... ol9 

13 0 0 1.6 o16 0 0 0 0 0 e8.4 

14 0 0 . 3 e8.7 0 0 0 0 0 o24 

15 0 0 o19 e4.9 0 0 0 0 0 e7 . 1 

16 0 0 os. s 0 0 0 0 0 es.o e2 . 9 

17 0 0 e2.0 0 0 1 . 7 0 0 0 e2 . 0 

18 0 0 0 0 0 e9.S 0 0 0 0 

19 0 0 o13 0 1.0 e7 . 3 0 0 0 0 

20 0 0 e5.0 0 0 e4.4 0 0 e5.9 0 

21 0 0 ... 0 0 el.4 2 . 0 5 . 3 el. 9 0 

22 0 0 0 0 .. ..s 3.3 o12 0 0 

23 0 .7 0 0 6 . 1 0 o32 e3 . 3 0 0 

24 0 27 0 0 1.9 0 e7 .9 0 0 0 

25 0 s.o . 6 0 0 0 e2.0 0 0 0 

26 0 .3 . 7 0 0 e6 .. 6 o17 0 0 0 

27 0 0 0 0 0 el.9 e6.8 0 0 0 

28 0 0 0 0 0 0 e3 . 1 0 0 0 

29 0 0 0 0 0 0 el-5 0 0 0 

30 0 0 0 0 0 o.7 0 0 0 

31 2 .0 0 0 0 0 0 

Month Second- llaxiaUJO IUnimu. Mean Runort ln root-days acre-teet 

October ....... ,. • • • • • • • • • • • 0 • • • • • • 2 . 0 2.0 0 0 . 06 4.0 

November .........................•. 41.9 28 0 1 . 40 8 3 

December ...... .... .... ... .. .. .............. 77 . 9 19 0 2.51 155 

------- Calendar year 1940 ....•.......•. 664 . 5 383 0 1.82 1,:510 --- ---- -----· January . . . . . . . . . . . . . . 29 . 6 16 0 . 95 59 

February . ................ .. .... 13 . 1 6 . 1 0 . 47 26 

Ma rch . . ............. 37.2 9 . 9 0 1.20 74 

April . . . . ................ ... ····· ···· ····· 76 .3 32 0 2 . 54 151 llay .. .. ....... ...... ··· ··· ··· ··· 46.3 12 0 1 .49 92 

June ..... ....... .... .... ... ..... ... ... . 104 .4 60 0 3.48 207 

July .. . ..... . . . .. . .......•..•.•..•.. 66 . 1 24 0 2 . 13 131 

August . ..... . . . ... 0 0 0 0 0 

September .. . . .... . . . ... . ............... 0 0 0 0 0 

Water year 1940-41 ........... 49< . 8 60 0 1.36 982 

No gag8-holght record July 23- 29 , July 31 to Aug . 20 , Sopt . 25-30; range in stage and weather records 1nd1ca te no flovv. 

• Plow passing over splll way . 
LAVACA RIVER BASIN 127 

Lavaca River at Hallettsville, Tex. 

Location .- Water-stage recorder and w!re-we!ght gage, lat. 29°26 ', l ong. 96°57', at bridge on 0 . S. Highway 77, In Hallettsville , Lavaca County , and 0 .4 m!le upstream !rom Texas & New Orleans Railroad bridge. Datum or gage 1s 186 .7 t eet above mean sea level, datum or 1929. 

Drainage area.- 101 square miles. 

Records available.- July 1939 to September 1941. 

Extremes.- Maximum discharge during year, 1?,000 second-teet Nov. 24 (gage height, 29.36 t eet); minimum, 0 .8 second-toot Oct . 5-11. 1939-41: Maximum discharge , 93,100 second-teet June 3C , 1940 (gage he i ght, 40 .60 teet, !rom tloodmarks to highest nood known), by slope-area method; minimum, 0 .4 second-toot Sept . 29 , 1939. Maximum st age known pri or to 1940 , 32.8 teet, July 16 , 1936 , acco rding to lnrorma- t!on rurnlshed by local resident . 

Remarks .- Re co rds ralr except those ror periods or no gage-he i ght record, which are poor . -----siiliSequent to Jan . 24, discharge computed rrom available recorder r ecord and graph 

based on two or more dally gage r eadings. No large diversion above station . 

Discha rge . in second-teet, water year Octobe r 1940 to September 1941 

Day Oct . Nov. Dec . J an . Feb . Mar . Apr . May June July Aug . Sept . 

1 0·9 156 } 567 19 20 123 22 7 . 0 6 . 3 

2 1 . 0 14 372 19 21 198 20 6 . e 6 . 3 

3 . 9 9 . 4 a25 1e 19 77 2 , 44 0 19 7 . 0 6.1 4 . 9 7 . 0 1 9 1e 24 109 19 6 . e 6 . 0 

5 .9 , 9eo 17 17 19 1 , 490 1e e . 4 5 . e 

6 . 9 40 } 153 1 , 270 19 116 15 a26 40 5 . 6 7 . 9 9 . 2 a21 44 311 e34 68 23 212 5 . 5 

e .9 a81 92 37 49 42 27 64 6 . 6 9 . 9 44 24 30 33 16 4e 5 . 5 

10 .9 26 17 24 2e 39 25 eo 

ll . 9 1,100 24 17 21 1,280 994 13 14 

12 . 9 1,690 21 17 20 61e 941 10 7 . 0 

13 . 9 255 19 17 20 66 71 33 9 . 3 6 . 0 

14 . 9 49 1 , 230 17 16 20 45 43 112 e . e 5 . 6 

15 1.2 a7 . 9 1,720 17 16 19 37 36 31 e . 6 6 . 6 

16 1. 2 117 a275 17 16 16 32 1e9 24 e . o 6 . 1 11 1. 2 39 17 188 1 6 31 50 24 7 . e 13 1e 1. 2 a35 16 1 , 200 13 29 7 . 4 e . 2 19 1. 2 12e 16 542 13 27 a37 7 . 0 6 . 1 20 1 . 2 1 , 200 1e 416 13 26 7 . 0 5 . 6 

21 1.1 123 a21 17 62 603 234 102 6. 6 5 . 3 22 1 . 1 ) 16 42 1 , e10 2 , 240 77 6 . 6 5 . 0 23 1.2 10 372 3 4 647 569 55 a13 6 . 6 5 . 0 24 1.3 370 a7e 204 30 19e e• 23 6 . 4 5 . 0 25 1.7 130 1 6 35 28 63 e2 20 e . 3 6 . 0 

26 2 . 6 967 16 26 27 e93 59 373 6 . 3 4 .7 27 2.0 39 21e 16 21 27 392 38 249 6 . 3 4 . 6 28 1.9 

} a30 } 14 19 24 163 38 36 6.3 4 . 5 29 ,1eO &46 14 22 95 38 24 6 . 4 4 . 4 30 14 14 22 244 30 20 7 . 4 6 . 4 4 . 4 31 e 45 14 21 26 7 . 2 6 . 4 

Month Second- Max imum Minimum Mean Runoff in root-days acre-teet 

October . ....... " .. ........ 2 , 0'11.8 1 , 180 0.9 66.e 4,110 

November ..... . ........... ....... 13 , 940 . 1 8 , 370 465 27,650 

Decembe r . . .. .. ....... 7,778 1,720 251 15 , 4.30 

-- ----- Calendar year 1940 .... .................. 63 , 442 . 9 33, 500 . I) 173 125 , 800 

------- January ..... .... ...... .. .................. :5, 086 1 , 2:50 99 . 6 6 , 120 

February .......... . .. .. •..... . . . . . •..•.... . 2 , 2:54 557 16 79 . e 4 , 4:50 

March . ... . .. , . . • . ......•. . •. .•....•..• ..... 4 , 5:55 1 ,270 16 146 9 , 000 

P. : :: :: : : :::::: : : : : : : :::: ::: : : ::: :: : ::: : 6 , 395 1,810 13 213 12 , 680 

10 , 265 2,440 25 331 20, 360 

June ......... ..••. .... .•. .. ...... .......... 3 , 6:52 994 15 121 7 , 200 

J u l y .......... . • . . ..... .... ... .......... 706 . 6 22 . e 1 , 400 

J.usust ............ . ... ........... ... ... . 682 . 5 212 6 . 3 1e . e 1 , 160 

Sept ember . . .... . . .. ... . ... 257.7 eo 4 . 4 e . 59 511 

Wa t er year 1940-U . . . . .. ... . 55 , 48:5 . 7 8 , 370 . 9 152 110 , 100 

Peak discharge .- Nov. 24 (3 p . m.) 17 , 000 aec .-f't . ; Dec . 11 (10 p. m. ) 6,160 sec . - ft.; Hay ll (10:30 a . m. ) 4 , 880 seo .-rt. ; Hay 22 (8 p. m. ) 7 , 400 seo . - rt. 

a No gage - height record; discharge computed on basis or available gage heights , recorda t or station near Edna , eng ine er's no tee , and weather records. 
128 LAVACA RI VER BASIN 

Lavaca River near Edna , Tex . 

Location .·· Wire-weigh t gage , lat. 28°58 ', long . 96°42 ', on bridge on U. S. Hi ghway 96, 

550 feet upstream from Texas & New Orleans Ra ilroad bridge, and 2 .8 miles southwest or Edna , Jackson county. Datum or gage Is 13.88 teet above mean sea level, datum or 1929 {levels by Corps or Enginee rs, U. s. Army). 

Drainage area .- 887 square miles. 

Records available.- August 1938 to September 1941. 

Extremes. - Maximum discharge duri ng year, 51 , 200 second-teet Nov . 26 {gage height, 29 .7 t ee t, from graph based oo gage readings); minimum obse rved, 18 second-teet Oct. 16-24. 

1938-41: Maximum discharge , 73 , 000 second-teet July l , 1940 {gage height , 32.51 

teet); mlnlmum obse rved, 5 .2 second-t eet July 10, 1939 . Maximum stage known, 33.8 teet May 25, 1936, acco rding to Information furnished by local residen t {d ischarge, 63 , 400 second-teet) . 

Remarks .- Rscorde good. Gage read twice dally; more often du r ing high stages . No large 

----crrYerslon above station . 

Disc harge . in second-teet , water year October 1940 to September 194.1 

Day Oct. Nov. Dec . Jan. Feb . lltar. Apr . May June Jul y Aug . Sept . 

1 22 4,620 cMIO 284 160 162 210 1 , 010 476 420 110 81 

2 22 1,990 ~~~ 2~ 1 , 050 162 204 606 ~9~ ~60 107 74 

3 22 ~1~ 284 4~ 1 ,990 144 640 4 , 680 ~08 ~MI 101 70 

4 21 174 260 224 ~88 142 620 15 ,400 2 , 220 ~00 99 68 

5 21 1 , 540 2W 210 256 1~6 298 c9,950 1 ,460 270 101 66 

6 21 7 , 000 210 204 96 146 217 c6 , 500 425 242 138 6~ 

7 21 6 , 930 319 204 9 40 2 ,260 422 o4,160 409 221 546 63 

8 20 700 1 , 520 191 686 3 ,420 1 , 170 c703 426 207 1 ,490 ~ 

9 20 277 604 184 1,210 493 422 c4.90 ~5~ 196 799 66 

10 20 204 277 176 601 270 2~6 c400 286 186 315 130 

11 20 164 224 170 ~12 224 204 393 ~01 246 221 164 

12 20 142 298 166 250 191 191 3,730 4,480 2 , 080 172 166 

13 20 1~7 4,::530 160 217 172 178 5 , 580 9 , 990 810 150 112 

14 20 93 5 , 860 1 , 880 191 157 176 8 01 2 , 5:50 79 4 1~4 8 3 

15 20 79 2 , 660 6 , 920 175 148 17~ 426 6 46 1 , 350 126 7~ 

16 18 71 6 ,600 4,610 161 146 166 ~46 667 1 , 910 118 181 

17 18 68 5 , 8 60 700 168 ~52 160 ~00 1 , 570 426 114 166 

18 18 67 864 U6 166 4,900 163 270 723 393 109 101 

19 18 64 680 312 165 11,900 149 242 ~86 ~00 106 112 

20 18 62 3 ,680 263 161 8 ,760 142 228 316 242 101 86 

21 18 60 7,280 4~ 162 c2,'760 

~~~ 266 442 207 99 72 

22 18 66 3 , 770 224 152 c693 3 , 9 40 426 186 95 65 

23 18 62 704 217 172 c520 ,8~~ 7 , 660 469 173 9 1 66 

24 18 161 496 204 908 432 5,920 9 ,990 442 164 88 68 

25 23 25,200 400 198 1,060 863 720 2 , 990 417 151 86 68 

26 40 ~9,500 432 191 333 600 912 660 6 47 144 82 99 

27 31 c12,100 868 191 224 M\6 

~:~~2 720 7 , 210 lMI 78 68 

28 68 e1,130 1 , 100 178 184 ~3 510 17 ,400 130 76 63 

29 1 ,490 c530 566 170 - 263 

~:~~ 707 4, 560 126 84 60 

30 2 ,470 c 440 348 168 - 230 1,700 681 120 8 4 60 

Jl 1 ,470 - 298 162 - 217 918 - 114 91 -

Month second- llaxieua Minimum lie an Runort in toot-days acre-teet 

October . .. .. ..... . . . . . . . . ····· · ·•· ··· ·· · . .. 6 ,06 4 2 ,470 18 196 12 , 010 November ..... . .... .. . . . . . ..... . . . . . .. . . . . . . 102 ,934 39 ,500 60 3 , 431 204 , 200 Deceaber ..... . .. .. . . .. . . .... . ...... . . . . . . . 51 , 685 7_, 280 210 1 , 667 102 , 500 --- - - - - ------ - -- - -- ------ ---- -- Calendar year 1940 ... .. .... . ... . . ·· · · ·· · 299,492.4 49, 600 7 .9 818 594,100 -- - -- - - -- - -- - -- - --- ------ ------ January . . . ... . . . ··· ········ ··· ·· ... ······ · 18 , 8Z4 5 , 8 20 160 607 37 , 340 February . . . . · . . . . ... ....... .. .. ...... ... .. .. 12, 786 1 , 990 161 457 26 , 360 March . . . ... .. . .. .. . .. . ... . . ........ ...... .. 41 , 660 11 , 900 136 1 , 34.1 82 ,430 

April. . . . ...... •. .... ..... ...... ....... .... 38, 016 8 , 700 140 1 , 267 75 ,400 May •.. ... .. .•. . • . ...... ......... ...... ..... 86,273 16,400 228 2 ,783 171 ,100 June . .... . ... .. . . .......... ......... ....... 60,844 17 ,400 285 2 , 028 120 , 700 July ........ .. . .. .... .... .... ..... .... ... .. 12,932 2 , 080 114 417 25, 660 August . ... .. . . ... ..... ..... ...... ..... . .. . 6 ,108 1 , 490 76 "197 12,120 

Septeaber .. .. ... .... ...... .. .... .... ... ... . 2 , 663 181 60 88 .8 5 , 280 

Water year 1940- U ··· ··· ····· ······ . ... . 440 , 679 39 , 500 18 1 , 207 874,100 

c Boclnrater t'rom return flow below atatlon; discharge computed from backwater curve 'baaed on 

discharge aeaaurementa. 
LAVACA RIVER BASIN 129 

Navldad River near Ganado, Tex. 

Location.- Wi re-we i ght gage , lat. 29°02', long . 96°33' , on bridge on U. S. Highway 96, 

100 f eet upstr eam rrom Texas & New Orleans Railroad bridge, a quarter or a mile down- str eam rrom Sandy Creek, and 2t miles southwest or Ganado, Jackson County. Datum or gage Is 13.62 reet above mean sea level , datum or 1929 (levels by Corps or E:nglneers , U. S. Army) . 

Drainage area.- 1,116 square m!les. 

Records available.- May 1939 to September 1941. 

E:xtremes .- Maximum d ischarge during year, 64 ,600 second-teet Nov. 26 (gage height , 36.50 t ee t, rrom nood.mar k) ; mi ni mum observed, 9 .2 second-teet Oct. 21. 1939-41: Maximum discharge, 64 , 500 second-t eet July 2, 1940 and Nov. 26, 1940 ; maximum gage he i ght, 36.54 reet July 2 , 1940 , r r om tlood.mark; m!nlmum observed, 4.0 second-teet Nov. 1, 1939. Maximum stage known, 39.8 reet May 27, 1936, according to Information rurnlshed by !lng!neers or Texas & New Orleans Railroad (discharge, 94,000 second-teet, rrom rating curve extended above 60 , 000 second-teet) . 

Remarks .- Records good. Gage read tw! ce dally ; more or ten during high stages. No large 

---crrvers1on above station. 

Discha rge, in s econd-tee t. water yea r Oc tobe r 1940 to September 1941 

D~ Oct . Nov . Dec . Jan . Feb . War . Apr . llay June July Aug. Sept. 

1 1e 7 , 160 686 542 144 271 218 .t, 090 56o c549 90 172 

2 16 5 , 630 614 470 247 218 20~ 3,!580 1,270 c~33 8~ 1~ 

3 14 1 ,680 506 383 1 , 090 197 6~ 4 , 720 560 ~25 76 127 

4 ~ 44~ 426 3 41 872 183 770 9 , 660 417 271 72 127 

5 12 2 ,740 383 301 632 169 355 14 , 900 333 226 73 126 

6 12 7 , 550 ~66 27e 417 162 226 14 , 900 271 197 82 105 

7 12 c7 , 960 48e 271 551 472 278 e9 , 600 264 175 852 122 

8 11 c:S , 890 750 256 1 , 200 2 , 600 1 , 560 c3 , 7 40 1 , 350 166 3 , 560 15~ 

9 11 e1 , 400 667 241 1 , 560 2 ,410 936 c775 1 , 210 148 4 , 420 144 

10 11 c596 408 226 810 454 294 578 810 135 2 , 560 172 

11 11 c400 41 211 5 42 286 211 c506 506 564 748 186 

12 10 c:S66 789 204 400 241 17Q c 434 4 , 040 5 , 080 417 2~4 

13 10 e349 4 , 120 197 301 204 168 ~M 6 , 340 6 , 950 317 294 

14 11 ~01 7 , 720 2 , 600 226 190 162 717 2 , 790 8 , 2:50 264 133 

15 12 341 11 , 800 7 , 430 183 183 150 ~92 1 , 120 7,380 211 138 

16 11 183 c8, 6 40 6 , 48V 169 183 1:56 ~~3 596 5 , 330 180 211 

17 10 142 c? , 680 ooo 156 466 1~~ 286 95~ 3 , 230 161 496 

18 10 134 c:S , 760 1 , 000 150 4 , 280 125 256 836 1 , 560 152 620 

19 11 1~0 c.l , 780 614 150 8 , 560 11~ 241 57e 614 142 211 

20 10 122 :5 , 260 417 162 11 , 400 11~ 226 426 ~92 134 124 

21 9 . 5 120 6 , 020 326 176 o9 , 640 113 484 374 286 127 94 

22 10 125 6 , 080 286 211 03 , 620 1 , 7 40 1 , 500 942 226 140 77 

23 9. 5 122 2 , 160 266 248 c989 5 , 680 ~50 1 , 280 186 130 78 

24 10 474 938 234 1 , 530 c6SO 9 , 170 2,070 452 164 115 98 

25 14 31 , 200 850 21e 2 , 390 o578 16 , 500 969 408 135 109 134 

26 15 59 , 700 1 , 150 197 990 c542 12, 100 660 857 120 101 211 

27 15 39 , 500 2 , 300 189 5 42 c452 c5 , 570 650 4 , 910 106 111 177 

28 50 17 , 000 3 , 930 179 341 c408 c5 , 090 660 11 , 200 101 125 159 

29 1 , 240 c2 , 960 3 , 370 168 e3U c4 , 160 1 , 770 c8 ,480 97 153 116 

30 2 , P70 o760 1 , 320 150 278 c2 , 510 4,860 cl , 560 92 189 106 

31 l5 , 150 670 142 241 6 , 880 97 190 

Month Sec ond- Maxiaua Minieum Mean Runott in 

root.-daya re-fe~ t 

Oc tobe r . .. ····· ······ ····· ····· ········ 9, 729 .0 5 ,150 9 .5 314 19 , :500 November ..... . . ... ... . ..... .......... ..... . 19:5 ,498 59 , 700 120 6 , 450 383 , 8 00 December . . . ..... ................... 8 :5 , 972 11, 600 341 2 , 709 166, 600 

--- ---- Calenda r year 1940 .... .. ........... ..... 4.1 :5 , 952 .9 69 , 700 4 . 1 1 , l:Sl 821 ,100 

---- --- January . .................••.•.. •..•....•. .. 27 , 806 4~0 142 897 55, 150 February . .. . . . . ... .. ... . ....•.. ..... ...•... 16 , 2 10 2 , 390 144 579 32, 150 March . . . . . .. . . . .. . ....... ... .. .... ...• ... . . 50 , 888 11 ,400 162 1 , 6 42 100, 900 

April. ... ..... •. . • . .•.. .... . . ..• . .. · . . ····· 69 , 447 16 , 500 113 2 , 316 137 ,700 

May ... ... . . . .. .. . • . . . . .. . . .. .... . .. .. . . ... . 9 4., 007 1 4, 900 226 3 , 032 186 , 500 J~e .. ... . . . . .. ..•.. .....• . .•..•...... ... .. 58 , 713 11 , 200 264 1 , 957 116 ,500 

July ... .. . . . ..•. . , . ....•. ... •..•.... . . . .... 43, 286 8 , 230 92 1 , 396 85 , 850 h~~ ........................... .. ........ 16, 104 4,420 72 519 31, 940 

Septe•ber ..... . ... ... .. . .... . .. . . . ... ...... 5 , 279 620 77 176 10,470 

Wat•r year 1940-41 .. .. . .. ...... ... .... .. 668, 938 59 , 700 9 . 5 83~ 1 , 327 , 000 

c Backwa ter from r eturn flow below eta t1on; discharge c om puted t'rom ba ckwater curve baaed on ditJchar ge measureme nts. 
130 GUADALUPE R1 VER BASI N 

Guadalupe River at Comfo rt , Tex . 

Location .- Water-stage recorder, lat. 29°58', long. 98°54' , at urldgo on u. S . Hi ghway 6'1 , a quarter or a mi le downstream from Cypress Cr eek and halt a mile east or Comfort, 

Kendall County . Datum or gage Is 1, 372.0 tee above mean sea 'level , datum or 1929. 

Dra i nage area .-. 986 square mlles. 

Records available.- May 1939 to Sep ember 1941. December 1917 to August 1924, at sl te near Comfort , 5 ~lles upstream, and August 1924 to September 1932, at site near Comfort , 4 m!les upstream (records equ ivalent du ring flood runort originating above upper site and during extremely low flow at which times Cypress Creek contributes no appreciable now) . 

Ex tremes .- Maxlmu~ discharge during year, 15, 40C second-teet Apr. 27 (gage he ight, 19 .14 

feet); minimum, 36 second-teet Oct . 20, 22 , 23. 

1917-32, 1939- 41: Maximum discharge , 182, 000 seco,ld-teet July 1 , 1932 (gage height, 38.4 teet, present site and datum , from tloodmarks, according to data rumlshed 

by Texas Highway Department) , by slope-area method ( tlood originated above Cypress Creek drainage) ; minimum observed , 0 .4 second-toot Aug . 2 , 1918, at site then In use . rrood of July 16 , l90C, reached about the same stage as that or July 1, 1932. 

Remarks .- Records good except those above 4,000 second-teet and those for period or no gage-height record, which are poor . Several small diversions above station r c.r lrr lga !on . Slight r egulation during low water periods caused by power plants above sta t1on . 

Discharge . in second-teet. water year Oc t obe r 19 40 to September 1941 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

2 1 

22 

23 

24 

25 

26 

27 

28 

29 

30} 

31 

Oct. 

36 

3 

4C 

5 

~~ 

~ 

3 l 

a 8 1C 

Nov . 

a90 l 

a 340 

Dec . 

aBO 

a l , 480 

262 

233 

21 7 

202 

189 

i~~ 17 

192 

212 

187 17 

173 

171 

Month 

Jan . 

171 

164 

160 

157 

155 

153 

151 

149 

146 

140 

140 

138 

147 

153 

142 

138 

134 

130 128 

128 

126 

130 

126 

126 

128 

126 

126 

132 

126 

124 

190 

Feb . 

3 , 500 

1 , 600 

858 

660 

552 

516 

436 

516 498 

442 

414 

403 

376 

355 

3 48 

3 44 

335 

322 

319 

309 

300 

306 

400 

365 

325 

309 

288 

279 

Octobe r . . . . ...... . . . .............. .... .... . Nove11ber .. . ........ . ... . Deoe•ber ... . 

Calendar year 1940 ... ... . .... . . • ...... . . 

Wa r . Apr . May 

273 

271 

271 

257 

257 

306 

262 

262 254 241 

233 

233 

225 

222 

2 30 

228 

496 

1 , 560 822 660 

588 

552 

516 

476 

469 

666 588 

498 

459 

448 

431 

Secondtoot-days 

2 , 894 5 , 200 

13 , 910 

69 , 412 

417 

495 504 

396 

375 

555 

509 

389 

368 

358 

351 

355 

355 

378 

368 

420 

372 

341 

335 

306 

297 

312 

341 

355 

331 

977 6 , 200 4 , 100 

1 , 620 1 , 170 

964 

2 ,070 2 , 450 1 , 360 1 , 470 

1 , 090 

9 48 

8 76 €0 4 766 

771 

732 

696 

660 

62 4 

588 

570 

534 516 

496 

646 

552 

534 570 460 

452 

43 4 

431 

410 403 376 

Wax1mum 

June 

361 

351 361 

361 

331 

319 

297 

279 

273 

297 

335 291 265 

2 48 2 46 

285 

248 230 

222 

212 

207 

202 

197 169 

160 

2 43 225 194 164 171 

Winimum 

36 

July 

166 

162 

160 

166 

1 73 

157 

147 

145 147 142 

185 

233 

166 

269 238 

271 

204 171 

162 

199 

175 162 

149 

140 134 

128 

122 

122 

118 

114 

110 

Mean 

Aug. 

105 

107 

105 

107 105 

105 

103 

304 209 

173 

149 132 120 

116 

114 

112 

107 

99 

96 

9 4 

103 

116 

105 

96 

69 

63 

61 

6 4 

66 

63 

61 

Sept . 

81 

110 

91 

6 4 

76 

75 

72 

71 1 , 090 

336 

199 

162 

151 132 

120 

116 

760 

616 

286 217 

167 

168 

173 

177 

160 

147 

138 

134 

130 

126 

Runotr in acre- ree t 

93.4 6 , 740 173 10 , 310 

449 27, 590 

26 162 117,900 

January . . . .... . . . . . . 4, :583 190 124 141 8 , 690 February .... . ... . . .. . . .. .. . . ... . .... ....... 16, 676 3 , 500 279 560 31 , 090 March . . .. . ....... .. .. .. . .. . .. .. . . . . 13 , 263 1, 560 222 428 26 ,310 

April ... . .. ............ . ............. . . . ... 2 4, 030 6 , 200 297 801 47 , 660 May .... . .. . . .. . .. . .. .. . 24, 298 2 ,450 378 784 48 , 190 June . . . . . . . . . . . • . . . . . . . . . . . . . • . . . . . . . . 7, 776 361 16 4 259 16 , 420 July .. .. .......... .. ............. .. .. .. 5 , 141 271 110 166 10,200 August ........ .. . .. . . . .. . • .. . .. . .. 3 , 573 30 4 81 115 7 , 090 

September . ..... ...................... ..... . ·l----6..:,_3_7_6!----l-','-0-9_0+----7-'1+-- 2..:13...._+_..:1_2..:.,6..:5:...0_ 

Water year 19 40 -'1 . . . . . . . . . . . . . . . . . . . . . . 126 , 520 6 , 200 ~ 347 250 , 900 
GUADA WPE RIVER BASIN 131 

Guadalupe R1 ver near Sprl ng Branch , Tex . 

Location .- Wate r-stage recorder, lat. 29°51 '40' , long . 98°23'00" , at bridge on State 

Hi ghway 46 , 4 miles southeast or Spri ng Branch, Comal County and 6 miles downstream 

from Curry Creek. Datum or gage Is 948 .13 feet above mean sea level , datum or 1929. 

Drainage a rea.- 1 , 432 square miles . 

Records available .- June 1922 to September 1941. 

Average discharge .- 19 years, 286 second-feet. 

Extremes .- Maximum dIs charge during year, 15,300 second-teet F'eb . 1 (gage height, 17.98 

f ee t}; minimum, 40 second-feet Oct . 4- 6, 9- 13. 

1922-41: Maximum discharge , 121 , 000 second-feet July 3 , 1932 (gage height, 42 .10 teet) , from rating curve extended above 70 , 000 second-feet ; minimum, 2 .2 second-teet 

July 11 , 1939, from rating curve extended below 15 second-feet. 

Maximum stage known , between 45 and 50 feet In 1900, acco rding to lnfonnatlon rumtshed by local residents. 

Remarks.- Records good . Small diversions above station for Irrigation. Slight regulation -----aurrii'g pe riods Of lOW flow by powe r plants above Station . 

Discharge . in second- teet , wa ter year Oc t obe r 1940 t o September 194~ 

Da Oct . Nov . Dec . Jan . Feb . Mar. Ap r . Way June July Aug . Sept. 

1 44 1 , 1 00 138 298 7 , 340 666 1 , 020 2 , 270 711 364 209 123 

2 44 1S3 12S 2e6 5 , 080 560 9S5 2 , 390 683 347 199 120 

3 42 150 121 276 2 , 320 655 1 , 220 6 , 000 666 372 193 138 

4 40 130 116 264 1 , 6SO 535 1 , 020 3 , 390 57e 37e 1S7 135 

5 40 114 114 261 1 , 400 520 91e 3 , 230 650 3 47 190 123 

6 40 102 114 268 1 , 260 726 885 4 , 150 634 343 1e7 114 

7 68 95 114 251 1 , 140 723 1 , 550 2 , 480 952 323 le7 109 

8 52 93 111 248 986 595 1 , 030 2 , 210 617 304 le3 104 

9 40 93 107 245 1 , 100 566 e55 2 , 030 575 290 340 123 

10 40 93 107 236 986 550 eo7 1 , 91 0 570 283 304 1 , 080 

11 40 93 1 , 290 233 885 516 795 1 , 900 622 472 254 436 

12 :g 91 2 , 440 230 S26 505 7e 3 2 , 260 500 493 226 283 

13 S6 2 , 000 233 e01 495 795 1 , 740 655 536 206 225 

14 44 

~~ 610 254 723 480 7e3 1 , 630 510 637 193 209 15 45 4, 730 264 694 485 eo7 1 , 520 490 996 183 190 

16 44 71 1 , 970 239 672 490 777 1 ,430 555 569 177 1 71 

17 ;; 71 763 230 661 654 e25 1 , 360 565 658 171 177 

18 73 571 218 62e 3 , 720 753 1,300 480 414 165 951 

19 :; 71 480 216 617 2 , 560 717 1 , 220 456 356 159 633 

20 69 425 212 595 1 , 870 683 1 ,140 432 323 153 37e 

21 

:~ ~~~ 37e 212 570 1 , 630 683 1 , 240 409 339 150 297 

22 363 212 566 1 ,490 see 1 , 360 400 327 144 261 23 4 ~~~ 329 212 690 1 , 400 717 1 .,180 3e2 304 159 236 24 :~ 311 209 885 1 , 260 729 1 , 100 373 2e6 156 229 

25 314 300 203 723 1 , 1eO 694 1 , 060 364 272 147 236 

26 ~ 239 300 203 666 1 , 260 1,950 91e 766 257 141 2 16 

27 209 37e 20S 622 1 , 6 40 4, 500 855 1 , 560 247 135 199 

28 ;; 174 37e 206 575 ~00 9 , 620 825 520 233 129 193 

29 ~~ 337 20S - 1 , 180 4 , ?70 eo7 432 226 126 190 

30 9 1 314 203 - 1 , 100 2 , 760 7e3 378 223 125 187 

31 605 - 303 200 - 1 , 100 - 747 - 212 126 -

Month Second- Maxi mum Minimum Wean Runoff in too t-days acre-feet 

October . .... , .. ~ . . ... ............ .... ...... 14~ 606 40 69 .1 4, 250 November .... . . . ... .... ..... ....... ..... .... 6, 490 1 , 200 69 216 12 , 870 Decembe r .... . ... . . . . . . . . . . . ........ . ... .. .. 20 , 0 30 4 , 730 107 646 39 , 730 

" ------ ------ ------ --- --- -- ---- Calendar year 1940 . .. . ...... . . . . . . . . . . . . 76 , 837 4 , 730 29 210 152 ,400 

----- -- ---- - -- -- - ------ --- --- January . ............ . ...... . . ... .. ... , . .... 7, 204 296 200 232 14,290 

February ............. . . . ..... . . .... .. . .. . .. 36 , 677 7 , 340 565 1 , 274 70,760 llarch . ...... .. . •....... . .............. .. ... 32, 198 3 , 720 4eO 1 , 039 63, 860 Apri l. .... . . .... ..... . . . ...... . .. . . ... ..... 45, 119 9 , 620 683 1 , 504 89 ,490 Way . ...... .... . ... • ............ . •· ... .. ... . 56 , 4 35 6 , 000 747 1 , 820 111 , 900 June ........... ........ . . . ... •.. . .... ... .. 17 , 564 1 , 550 364 585 4,84.0 

July ... .... . .. .................... ..... .. .. 11 , 730 996 2 12 378 2~ 270 

August . ... . .... . . . . . ......... .. .•.... . .... 5 , 605 340 126 181 11,120 Septembor .. .. ........... .. .... ............ 8, 067 1 , oeo 104 269 16,000 

Water year 1940 -41 " ..... ··· · ···· · ··· ·· · 2 48 , 262 9 , 620 40 680 492 ,400 

Peak dhch•r~o .- Dec . 15 (9:30a. m. ) 7 , 990 sec .-f t .; Feb. 1 (12:30 p. m. ) 15 , 300 sec .-ft .J Apr . 27 

~;3g fSm~!m? ~ ~l~~o~;~~ ~pr. 28 (8 p.m.) 13, 200 aec. - rt.; tuy 3 (3 z30 p. m. ) 7 , 470 sec .-ft.; 
132 GUADALUPE RIVER BASIN 

Guadalupe River above Comal River, a t New Braunfels, Tex. 

Location .- Wate r-stage recorder and concrete control, lat. 29°42' 55", long. 98°06 '40" , at New Braunfels, comal County, 1.1 mnes upstream rrom Comal River. Datum or gage 

is 586.6 teet above mean sea leve l , datum or 1929. 

Drainage area.- 1, 666 square miles. 

Records available.- December 1927 to September 1941. March 1898 to Decembe r 1899 and 

January 1915 t o De cembe r 1927, at site 1 mile below Comal River. 

Average di s charge.- 13 years (1928-41 ), 4ll second-teet . 

Extremes.- Maximum discharge during yea r, 14, 500 second-teet Apr. 29 (gage height, 12 .20 

f eet); minimum, 38 second-t ee t Oct . 14, 15 . 1927-41: Maximum discharge, 101,000 second-teet J une 15, 1935 (gage he i ght , 32 .95 

teet); min imum, 9 .6 second- t eet July 9-ll, 1939. 

Maximum stags known, about 38 teet sometime in 1869 and in December 1913, according to information rumished by loca l r esidents. 

Rema rks.- Records good . Small diversi ons above stati on tor irrigation . Some regulation 

----ouFlng low wate r pe ri od by small power plants above station. 

Discharge , in second-teet. water year Oc tober 19•0 to September 1941 

lla) Oot. Nov . Dec . Jan . Fob . Mar. Apr . lla,y June Jul y Aug. Sept . 

+-- - 1 52 971 190 447 2 ,710 77~ 1 .320 3,070 1 ,010 608 ~57 21e 

2 48 642 170 42~ !'7,510 76S 1 , 260 2 , 780 960 689 S50 211 

3 45 224 15S 401 2 , 850 75S 1 , 220 5 , 760 938 71~ S~7 207 

4 42 16~ 146 386 1 , 980 7S5 1 , 400 5 , 600 926 787 S18 207 

5 40 150 1S6 S72 1,650 69S 1 ,150 4 , 160 914 608 S18 211 

6 n 119 ~s ~57 1,490 960 1,100 5 , 320 880 572 ~so 199 

7 46 107 1SO S4S 1,400 1 ,120 1 , 220 3,280 1 , 180 554 S18 190 

8 48 100 12~ ~~7 1 , 260 926 1 , 660 2 , 780 1,130 520 ~12 18S 

9 50 96 119 ~2 4 1 , 220 816 .1~0 2 ,490 869 496 S05 194 

10 54 96 115 S12 1 , 290 7~ 1 , 040 2 ,S40 859 479 46S 289 

11 46 100 ~56 ~05 1,130 74 ~ 99 5 ~. ooo 892 479 4S1 962 

12 40 92 2 ,740 299 1 ,060 70S 972 2 , 920 892 748 386 471 

13 ~9 91 2 ,810 S12 1 , 020 67S 960 2 , S40 ~7 654 S57 S4S 

1-4 S9 88 1 , 250 ~05 938 654 972 2 , 120 77~ 1,180 s~o 286 

1~ 40 85 4 ,460 S24 859 6 45 9 60 1 ,980 7S~ 1,2,0 ~12 270 

16 40 8~ 4,440 ~18 848 6 45 972 1 , 860 809 1 , 200 29S 264 17 40 82 1,640 29~ 826 68S 9 60 1,780 880 892 286 270 

18 40 78 1 ,100 275 794 2,~0 960 1 , 700 794 794 275 264 

19 40 77 8 69 259 77~ 980 892 ,6~0 72~ 6S6 264 972 

20 40 77 806 254 76S 2 ,490 848 1 , 540 68~ 680 259 608 

21 41 78 69S 249 7S~ 2 , 120 816 1 , 500 6 45 546 254 415 22 41 189 626 249 70~ 1 , 880 8 48 1 , 650 6~6 546 249 343 

23 40 659 580 249 77~ 1 ,760 869 1 , 570 617 520 244 ~05 

2-4 40 1 ,320 554 244 1 , 030 1 ,620 892 1 , 460 599 479 2 49 280 

25 46 599 520 238 1,060 1,500 869 1 ,400 680 455 254 264 

26 51 455 504 23S 926 1,500 1,230 1 , 270 652 4~1 4~ 270 

27 51 S~7 512 2~~ 859 rl,780 c4 , 670 1 ,190 1 ,910 415 2~ 254 

28 56 280 680 2 44 805 1,790 9 , 500 1 , 160 1,040 401 2~S 2U 

29 62 2S~ 554 2~S - 1,520 9 , 680 1,100 75S 386 22. 2SS 

~ 69 211 495 2~~ - 1 ,4:50 :5 , 860 1 , 070 664 ~79 ~24 228 

31 107 - 471 2~~ - 1 , :590 - 1 ,040 - 365 220 -

Month Second- lla.x.i•UJI Minl•ua Moan Runoff in foot-days aore-feet 

October . . .... . ...... . .. . . . . . . . . . . . ......... 1 ,474 107 ~9 47.5 2 , 920 November . .. . . .. ... . ... . . . .. .. . . . . .. . . .... 7 , 88:5 1 , S20 77 26~ 15,640 Deoe•ber . . .... ....... . . . ... . . . . .. . .. ... . . 2'7 , 974 4,460 115 902 55,490 

---- --- ------ ------ - - ---- - ----- Calendar year 1940 . . . .. . . ... ... ... . . . .. 87, 894 4,460 ro 240 174 , M>O 

-- ----- ------ ------ - ---- - - ----- January . . . ................ ... .... .. ..... ... 9,284 447 2SS 299 18, 410 February . . .... ..... ..... ... .... ... .... .. ... ~9 50 7 ,510 70S 1 , 402 77 , 850 llarob . . .. . ..... ...... .... . ... . .. . ... .. . . .. . 40 ,1:56 3 ,980 6 45 1,296 79 ,610 

April. . ... .. ... .... ..... ... ... .... ...... ... 55 , 125 9 , 680 816 1,838 109 , 300 lla,y . . . .. . . ..... .... .. ..... .. .. · •· · · ·· · ··· · · · 72, 840 5 , 750 1 , 040 2 ,:550 144 , 500 June .. . . . . ..... .... ..... .. .. ... ... .... .... . 26 , 868 1 , 910 680 862 51 .~10 

July . . . . . . . . . . . . . . . . ...... . . . . .. .. ... . .. . . . 19,251 1,240 ~65 621 38 , 180 August ... ... . ... . . .. .... • ..•..•... . .. . . . . .. 9,234 46~ 220 298 18 , :520 September ... .... . . . . . .. .. . .. . ... . . . . . . . . . 9 , 642 972 18~ S21 19 , 120 

Water year 1940- U ··· · · · ·· · ·· · · · ··· ··· ·· 317 , 961 9 , 680 S9 871 630,600 

Peale: discharge .- Dec. 15 (7:30p. m.) 9 , 660 aec.-tt.; Feb. 1 (11:30 p. m.) 13 , 500 aec. - tt.; Apr. 29 

(5130 a.m.) 14,500 aee.-ft.J May 4 (1 a . m.) 8 , 9 40 aee.-ft. c Backwater rro= Comal River; discharge computed from graph baaed on <11acharge or Coma.l River. 

t Pragmenta.ry gage -height record; discha rge computed from partly estimated gage heights . 
GUADALUPE Rl VER BASIN 133 

Guadalupe River at VIctoria, Tex . 

Location.- Wa ter-stage recorder, lat . 28°47', long. 97°01', at bridge on u. S. Highway 95 In VI ctoria, VI ctoria County, l 300 t eet upstream f rom Texas & New Orleans 

(Galveston , Harrisburg & San Antonio) Railroad bridge, and lO m!lea upstream from 

Coleto Creek. Datlllll of gage Is 29 ,23 t eet above mean sea level, datum ot 1929 . 

Drainage area.- 5 , 676 square miles. 

Recorda available .- November 1934 to September 1941. Gage- height records collected In 

this vicinity since 1904 are contained In repo rts ot U. S. Weather Bureau. 

Extremes.- MaXImum discharge during year, 60 , 100 second-teet May 3 (gage height, 29.73 t eet) ; mlntmum, 365 second-teet (regulated) Oct. 20 ; minimum dally, 365 second-teet 

Oct. 20 . 1934-41: 118.XImum discharge, 179,000 second-teet July 3, 1936 (gage height , 31.22 

teet)i minimum, 277 second-teet (regulated) Sept. 5, 1939; minimum dally, 30S se cond- teet s ept. 5 , 1939 . 

Remarks.- Records good. Numerous small diversions above station do not materially attect ---n<5W':' Low now partly regulated by diurnal ope ration ot water power plants upstream. 

Discharge in second-teet water year October 1940 to Septeaber lQ'l 

Dt..J Oot . Nov. Deo . Jan . Feb . Mar . Apr . II&¥ Juno July Auc . Sept . 

1 467 4,400 1 ,960 gl,960 1 , 230 2 ,440 !3,420 17,200 2,890 3,~00 1,4'70 1,160 2 456 5 , 060 1,6,0 g2,040 2 ,120 2,300 !3.200 27,400 2 , 540 g2,690 1 ,440 1,100 3 478 7,220 1,500 gl,820 5,780 2 ,210 g3 , 140 49,700 2 ,4-tO g2,210 1 , 370 1,100 4 478 6,310 1,400 gl ,710 8 ,800 2 , 120 g3,360 30,600 4,7~ g2,160 1,270 1170 5 466 4,0-4.0 1,230 gl ,640 10,900 2 ,080 g3,360 25 , 400 4,680 gl , 960 1,300 970 

6 467 10,400 1 , 230 gl ,500 9,970 2 ,160 g3,910 26 ,400 4,460 gl,960 1,::570 1,0~ 

7 436 12 , 200 1 , 460 gl , 640 5 ,560 2 , 740 g6 ,190 ::50,200 ::5 , 860 g2,080 1 ,600 910 8 467 16,600 2 ,740 gl , 640 4 ,820 2 ,::540 g6,060 30,000 2 ,740 gl,8 90 l,MO 940 9 478 18 ,700 6,840 gl ,540 4,820 2 ,640 g5,000 24 ,400 2 , .uo gl,890 2,690 1 , 000 10 466 5,280 5 ,470 1 ,470 4,460 3 ,300 s4 ,450 18,200 5,070 gl,890 2,840 940 

11 467 1,540 3~0 1 ,440 ~.960 2 , 540 g3 , 200 9,970 7,4~0 gl,890 2,590 BBO 

12 489 gl,300 1 ,580 1 ,400 3 , 260 ,~00 g2,890 6,4.50 9,~60 g3,900 2 ,160 820 13 466 gl,130 4,900 70 2 ,790 2 , 160 g2,640 5,670 8,200 4,130 1,600 1 ,130 1-4 456 g660 9 ,410 2 , 670 2 ,640 2 , 0.0 g2,490 6,940 7,220 3,860 1, 70 1 , 270 15 478 g620 10,900 ~20 2 ,540 1 , 930 2 , 340 7 ,esc 5,7 20 4,520 1,~30 1 ,230 

16 446 g680 12,100 10,400 2 ,·440 ,9~0 2,300 6 ,900 3,960 ~.~o 1 ,300 180 

17 466 g820 12,000 12,000 2 ,340 2,170 2 ,300 4,700 5,180 4,090 1,'n0 970 18 466 g792 11,900 6,940 2 , 210 6,480 2,260 4,460 7,060 5,480 1 ,200 1,060 19 416 g736 12 ,400 g1,970 2 ,120 9,950 2 , 180 4,180 9,530 3,580 2~0 1 ,810 20 386 g736 16 , 300 gl ,500 2 ,080 9,180 2,040 3 ,910 7 , 880 g2,640 1,130 2 ,000 

21 435 g792 15,900 gl , 270 g1 , 960 10,800 2 ,120 4, 240 3,930 g2,210 1,100 2 , 120 

22 426 655 10 , 600 gl , l80 gl,890 12,100 2,260 6,300 3 , 260 g2 ,000 1 , 130 1,590 

23 395 736 7 , 880 gl,300 1 , 9GO 10,200 2 ,760 9,600 g3, 140 gl , 780 1,030 1,400 

2. 467 3 ,470 5,030 gl,230 2 , 340 5 ,440 4, 520 8,..f.l0 g2,990 gl,760 1,100 1,~00 

28 600 22 , 000 3,090 gl ,«O 4,140 0 , 440 6,090 7,780 g2,840 1 , 680 1 , 0 30 1,160 

26 511 19 , 200 2,G-40 1 ,300 6,190 g6 ,740 8,360 7 ,010 g2,480 1 ,610 1 , 100 1 ,000 

27 611 17 , 200 g2 ,UO 1 ,300 4,780 g4,240 12 , 100 4,480 5 , 050 1 , 610 1,070 1,070 

28 680 16,700 g2 , 340 1 , 'n0 2 , 890 g4,020 13,600 3,620 4,240 1 ,500 BBO 970 

29 1 , 660 10 ,700 g2,440 1,440 ~ g4,700 12,300 4,620 3,960 1 , 570 1,130 1,000 30 1 ,650 2 ,64-0 g2 ,690 1,680 - &4,700 12,800 3,960 4,300 1 ,500 1 ,130 1 , 030 

31 3,240 - g2,2l.O 1,600 - 53,960 - 3,300 - 1 ,600 1 , 130 - llontb Seoond- llui.ua· 111n18ua lie an Runort in root-da;fa aor.-teet 

Ootober . . . . . o •• ~ .. . . . . . . . ............. .. .... 19,!500 3.240 385 629 ~.6~ 

No•ember . . . . ....... . ..... . , ....... , . ..... . . 191,89'7 22,000 656 6,397 380,600 Deceaber ... . .. . .... ... ... . •....... . ..•..... 175,840 16,~ 1,230 5 ,672 348,800 ------- ------ ------ ------ -- ---- Calendar year 1940 ..... .......... .. .... . 764,970 61,000 366 2,090 1,617,000 

------- ------ ------ ------ ---- - - January . ............. . . ........•... ..•..... 79,660 12 , 000 1 , 160 2 ,6?0 158,000 February ............ . . ... . . . . ..... , ........ 110,980 10,900 1,230 3,964 220,100 Ma rch ....... o ••••••• • •• ••••• •••••••• • •••••• 136,360 12 ,100 1,930 4,398 270,400 

April . . . .... , ..•.. • . .. . . . . ••. , ..•.. , .••.•.. 141,620 13,600 2 , 040 4,721 280,900 

Ma.y ..... ... . o ••••• • • •• ••• • ••••••••••••••••• 402,650 o69,700 3,300 12,POO 798 ,600 June ...........•.. , .. . .• .. •.. , . ...•..• • . , .• 143,470 9,630 2 ,440 4,782 284 ,600 July ..................... . ................. 78,140 5 ,480 1,500 2,&21 1.55 , 000 August . ... . ......... .. . . ..... , .. , .... . ..... 43,700 2 ,8 40 BBO 1 ,410 86,680 

Septe•ber .. ...... . ... .. . .. ... . . . . ... .. . .... 34,910 2 , 120 820 1,164 59,240 

Water year 1940-41 ········· ······ ····· ·· 1,658,'722 49,700 386 4,970 ~,092,000 

Peak cUaoh.ar!! .- lfOT. 9 l10 •·•.J 20,400 aao.-rt.J Jfo•. 25 {11 •·•·1 24,400 aeo.-tt.; ""7 3 (1 P••• 150 , 100 aeo.-rt. g Computed trom graph baaed on onoe..(la11:y read1nga t'u.rn1ahed. by U. S. Weather Bureau. 
134 GUADALUPE RIVER BASIN 

Coma l Ri ve r at New Braunfels, Tex . 

Locati on .- Wa t e r- s tage recorde r, let. 29°42 ;as•, long . 98°07 ' 10", 200 tee t upstream !rom San An ton io St reet vi aduc t In New Braunfels, Comal County , and 1. 1 ml les upstr eam !rom mouth . Dat um o! gage IS 582 .80 t ee t a bove mean sea l evel , datum o! 1929 . 

Records a vailable .- December 1927 t o Septembe r 1941. 1882 to Novembe r 1927 {miscellaneous discharge measurements onl y ) . 

Extremes.- Maximum gage hei ght du ri ng yea r, 10 .50 f ee t, Apr. 27 (a trec t ed by backwater f rom Guadal upe Rive r; discharge not de termi ned }; min imum, 160 second-teet Oct. 28 

{regulated} ; ml n lmum dally, 259 second- t eet Nov. 13-17 . 1927- 41 : Max imum gage height, 30 .71 t ee t J une 15 , 1935 , !rom !loodmarks {a!! e c ted 

by backwat e r !rom Guadalupe R! ver; dis charge no t de term! ned }; mi nimum discharge , about 142 second-teet Dec . 11, 1928 (gage hei ght , 2. 12 t ee t , regulated} ; mi nimum da l l y, 245 

second- teet July 17, 20 , 1939 . Maximum stage known, 35 .4 teet , Decembe r 1913, rrom !loodmar ks {probably some back- we tar r rom Guadalupe RI ver} . 

Rema rks .- Records good except those Co r pe ri ods o! backwater e!!ec t which a re poo r. Flow ---paffiy regulated by s t eam powe r plant hal! a m!le above station . Enti re !low o! r i ver comes !rom Comal Spr i ngs, about 1 m!le upstr eam, except dur ing pe ri ods or local ra in . 

Discharge , in second-feet. water year October 1940 t o September 1941 

D~ Oct . Nov . Dec . Jan . Feb . Wa r . Apr . Nay June Ju l y Aug. Sept. 

1 285 281 281 ~00 0~12 308 331 c362 3n ~ 354 ~4 2 

2 285 281 'in7 296 o327 312 38 e648 ~73 ~77 346 ·6 

3 'in7 'in( 270 296 e334 2 3~8 o743 81 377 3 46 M 2 

4 277 277 'in4 296 327 5 31 e600 1 373 50 ~·2 

~ 'in4 'in? 'in4 29~ 308 31 5 3'in c'744 ~7~ ~ 50 ~46 

6 281 -;no 'in7 29~ ~04 ~23 338 o7 0 2 ~81 373 364 ~38 

7 -;no 266 'in4 293 308 316 334 o648 ~81 36Q 364 2 

8 'in4 266 'in4 289 308 316 3 46 480 ~77 373 364 342 

9 -;no 266 'in4 29~ ~04 315 342 444 369 ~73 54 364 

10 266 262 -;no 296 308 19 ~~8 420 377 365 358 338 

11 'in? 262 281 293 308 316 338 c640 377 369 362 342 

12 277 262 404 296 312 ~15 33 4 c576 377 369 369 54 2 

13 -;no 269 416 304 308 315 338 436 381 369 373 3~8 

14 'in4 269 293 308 308 323 ~~4 408 369 385 373 3~8 

15 'in4 259 o870 300 312 323 334 93 ~77 ~62 ~77 S42 

16 'in( 269 o632 00 312 ~'in 3M 397 832 362 ~69 M6 

17 'in4 269 ~12 00 ~12 331 338 389 377 350 373 542 

18 -;no 262 296 296 308 e408 338 386 377 50 377 M2 

19 -;no -;no 296 300 312 e338 334 381 ~77 346 369 ~·6 

20 'inO 262 ~ 296 ~08 o3M 331 385 377 M6 373 3~8 

21 'inO 266 296 296 308 0 334 338 442 369 342 369 ~38 

22 266 319 296 300 312 334 334 389 369 M 2 ~73 342 

23 

~~ 281 296 300 319 3'in 358 386 369 ~42 366 338 

24 319 296 300 319 319 346 381 373 342 373 342 

25 270 281 300 300 31 9 319 338 381 377 342 ~69 M2 

26 ~g 281 300 296 315 331 796 373 389 342 377 342 

27 285 300 300 315 331 ol,630 377 o389 342 354 8 

28 ~g 281 300 296 315 331 o870 377 377 342 342 342 

28 281 ~ 296 - 327 oSlO 381 373 342 346 338 

30 

~ 281 300 296 - 323 e385 373 373 346 ~4 2 338 

31 - 304 300 - 3'in - 381 - 346 3 42 -

Month Second- MaximWD aun iaUJD Wean Runoff i.n toot-days acr&-feet 

October ................ • . ... . . . . . . •..•. . . . . 8 ,-185 296 266 'in4 16,830 Noveabe r ............ . . . . . . . . .. .•• . •..•... 8 ,208 319 259 'in4 16,280 December ........... . ... . . . ..... . . . . . . ... .. .. 10 ,133 870 -;no 3'in 20 , 100 -- ----- ------ ------ -- ---- -- - - - - Calendar year 1940 .. . ... . . . ... ... .. . .... 105,08" 870 262 287 208 ,400 

------- ------ ------ ------ --- --- January .. ... . . . ..... . .....•.. . . . . . •..• . . ... 9 , 218 308 289 297 18,280 

February . .. ....... . . . ........ . . . . . . . . . . . ... 8,762 33 4 304 313 17,~0 

llaroh . ...... . .. . ..•..........•.... .. ... . • . . 10,081 408 308 326 20 ,000 April. .. . ... . .....•....... . ..• . ... ...• ..•.• 12,620 l , 630 3'in 421 25 ,030 

llay . ......•.. . .•..•.......•..•.... • . . • . . . . . 14.,221 744 362 459 28 , 210 June . . ........ . . ..•.... . .. • ...... . .. . . . .• . . 11 ,745 832 369 392 23,300 

July . ... . .........•... ... .•. . .. . ..•..• . 11,104 386 342 358 22 , 020 

Augu.st . . .......... . ....... . . .•. ··· · ·· · 11 , 187 377 3 42 361 22 ,100 

September .......... . ...... . ..... . .. .. . ... . 10 , 248 354 338 342 20 , 330 

Water year 1940-41 ................ ... .. . 126,012 1,630 259 345 250 , 000 

c Backwater trom OU.ade.l upe River; discharge computed !rom graph based on records tor atatioo , 

Ouadalupe River above Cc:aal. River at New Braunfels , and weather recorda. 
GUADALUPE RIVER BASIN 135 

San Marcos River at Luling , Tex . 

Location.- Watar-stage recorder, lat. 29°39'55", long. 97°39 ' 05", 390 teet downstream rrom bridge on State Highway 80 , 1 mile south or Luling, Caldwell County, and 8 

miles upstr eam !rom Plum Creek. Datum or gage Is 322.0 teet above mean sea level , datum or 1929 . 

Drainage area .- 833 s quare mtles. 

Reco rds available.- Aprtl 1939 to September 1941. 

Extremes.- Maximum discharge du ri ng year, 15 300 second-teet Nov. 22 (gage height, 30 .00 t ee t); minimum, 11 second-teet (regulated\ Nov . 4; minimum dally, 63 second-teet Oct. 

13. 

1939-41: Maximum discharge, 23 ,400 second-t eet June 30 , 1940 (gage height, 32.81 t eet). !rom rating curve extended above 16 , 000 second-teet; minimum, 10 second-teet (regula~ed} Aug , 6 , 1940; min imum dally , 55 second-teet Oct. 15, 1939 . Maximum stage known, 40.4 teet In 1869 and 1870, according to Inf ormation furnished 

by engi neers or State Highway Department . 

Remarks. - Records good except those tor periods o r rapidly changing stage , which are ---poor. Flow regulated by power plant 800 reet above station . Most or the basic now Is rrom large springs near San Marcos. No large diversion above station. 

Discharge , in second-teet , water year October 194.0 t o September 194.1 

Day Oct . Nov. Dec. Jan . Feb . War . Ap r . May June July Aug . Sept. 

1 66 209 217 464 604 512 736 1 , 560 592 608 328 225 

2 64 123 202 us 3 , ?20 496 720 1 ,470 576 592 328 225 

3 95 93 195 432 l ,4 20 496 768 6 , 350 560 576 312 225 4 77 111 161 400 928 460 752 3 , 820 576 560 320 225 

5 6 612 174 392 600 464 672 2 ,580 560 540 320 217 

6 65 144 176 364 752 464 656 2 , 270 528 54 4 344 217 

7 68 116 893 376 720 1 , 090 1, 210 1 ,890 1 ,070 528 3 44 217 

8 8 4 103 202 368 688 784 752 1 , 380 5 ,710 496 320 217 

9 84 107 173 360 656 624 640 1,240 1 , 150 496 312 217 

10 84 95 166 M4 656 592 606 1 ,150 976 496 304 225 

ll ~~ 126 1 ,410 336 608 560 592 1 , 080 1 ,180 495 296 240 

12 93 3 ,360 336 576 528 576 1 , 850 1 , 090 683 288 225 

13 ~~ 99 2 , 590 353 544 512 576 1 ,470 91 2 512 288 217 

14 96 816 1,900 528 496 576 1 ,110 800 512 272 210 

15 78 108 5 ,420 432 496 480 576 1 , 010 752 1 , 840 272 210 

16 

~; 1~~ 6 ,750 384 480 496 576 944 2 ,140 668 264 240 

17 1; 1 , 250 336 ••• 51 2 680 912 2 ,610 688 ••• 272 

18 7 664 312 464 l , SSO H4 864 1 ,100 544 256 225 

19 ~~ 1~~ 768 304 448 2 , 960 528 965 896 480 256 217 

20 976 296 448 1 , 450 512 880 616 464 256 210 

21 ec ~~ 704 296 432 1, 220 580 944 766 448 246 202 

22 8 

t:~~ 576 288 us 1 , 080 1 ,010 616 800 432 248 202 

23 9 528 280 1 , 090 1,010 2 , 690 832 736 416 248 195 

24 104 t~ig 496 280 1 , 220 928 2 , 920 784 736 384 240 217 

25 136 464 272 752 880 656 720 656 384 240 202 

26 m 608 464 264 608 928 2 ,440 688 672 376 225 195 

27 384 480 256 560 1 , 350 8 , 000 672 1 , 060 366 232 195 

28 1~; ~2 592 264 528 960 10 , 200 656 1 , 030 360 232 169 

29 550 256 - 616 3 , 000 656 720 352 232 195 

30 ~ 232 496 256 - 764 1 , 880 624 656 344 232 189 

31 460 248 - 752 - 608 - 336 225 -

Mon th Second- llaxlaua Yinimuc Mean Runort in 

root-days acre-tee t 

October .... ............ . . . . .. . .•.. •. .. ..... 3,836 1,200 63 124 7 , 610 

Hot/ember ............ · ....... . ........... .. .. 14,835 4,810 90 494 29 ,.t20 

Dec eaber . ........... ... ····· ···· ··········· 32 , 625 6 , 750 166 1 ,052 64,710 

------- ------ ------ ------ --- --- Calendar yea r 1940 ... .. .......... ....... 91 , 341 6 ,750 63 250 181 , 200 

------- ------ ------ ------ ------ January . . ..... .. .... ..... .... . .•.......•... 11 , 917 1 ,900 246 384 23 , 640 

February . . ..... . ......... . ......... . ....... 21 ,606 3,720 416 772 42 , 860 

Maroh . .. . ...........•..• .. ...........•..... 26 , 354 2 ,960 464 650 52 ,2?0 

Apri l. . . . .... .. ............................ 46,506 10 , 200 512 1 , 550 92 , 240 

May .. . .... ................ . ............... . 44,795 8 ,350 608 1 ,445 88 , 650 

June . . . ....... . ......... ... . .. . . . . ...•..... 32 ,428 5 ,710 528 1 , 061 64 , 320 

July ...... .. ...... ... . .... ......... ......... 16 ,6 23 1,840 336 536 32,970 

August . ............... ....... .......... .... 8 , 546 344 225 276 16 , 950 

September . ........... ........... .. .... . .. . 6 ,457 272 189 215 12,610 

Water year 1940-41 .. ... ..... ........ . .. 266 , 528 10,200 63 730 528 , 600 
136 GUADALUPE RIVER BAS I N 

San Marcos Ri ver at Ottine , Tex . 

Location .- water-stage recorde r, lat. 29°36 ' , long. 97°35 ', at highway bridge a Quarter ot a mile southwest or Ottine, Oonzales County and 4 mlles downstream ! rom Pl um Cr eek . Datum or gage !S 285 .2 reet above mean sea level, datum or 1929 . 

Drainage area.- 1 , 249 SQuare m!les . 

Records available .- June 1915 to Septembe r 1941. 

Average discharge.- 26 years, 453 second-teet. 

Extremes .- Max imum discharge during year, 17,400 second-teet Apr . 28 (gage he igh t, 33 .42 t ee t)

6

· minimum, 42 second- !eet Oct. 19 (regulated); minimum dally discharge , 83 second- teet ct. 19 . 1915-41: Maximum discharge , about 202, 000 second-!eet May 29 , 1929 (gage he i ght, 43 .32 reet ), r rom rating curve extended above 12,000 second-teet on basts or slope- area determinati on at gage height 40 .6 reet; no n ow (result or regulation ) J uly 29 , 1923, Mar . 31, 1925, June 24 , 1926; minimum dally, 40 second-!eet Sept . 16 , 1917 . Maximum stage known , about 44.0 reet In December 1913, according to ln!ormatl on t urn! shed by local residents . 

Remarks .- Records good except those above 3 , 000 second-teet, whi ch are f al r, and those ----ror-pe r!ods or no gage-height record, which are poor. Low water now regula ted by several small power plants above stati on. Most or baste now Is !rom large springs near San Mar cos . 

Discharge , in s econd-feet . wate r year Oc tobe r 1940 to Septe11ber 104.1 

Day Oc t. Nov . Dec . Jan . Feb . Mar. Apr . llay June J uly Au, . Sept . 

1 103 1 , 010 256 511 751 659 eoa a 2 , 000 l 655 364 ~ 

2 102 174 249 482 4,310 543 815 al , 600 6 23 355 259 

3 113 105 228 459 2 , 780 527 896 8 ,930 607 345 256 

4 91 130 227 434 l,O.fO 511 844 10 , 300 &700 623 347 255 

5 102 :5 , 140 209 428 862 511 739 4,0 40 671 363 252 

6 90 574 215 416 826 511 715 3 , 210 575 448 249 

7 86 156 1 , 590 395 773 1 , 190 1 ,800 &2 , 550 677 543 4.13 250 

8 9 2 126 442 398 756 1 , 1 90 937 al ,520 6 , 600 511 557 249 

9 102 112 232 382 705 705 705 al , 400 ,,570 511 381 247 10 98 117 208 372 722 639 639 al 1 340 1 , 100 511 353 253 

11 104 162 1 , 020 360 639 607 607 al , 300 2 , 080 5ll 3(4 272 12 99 157 6 , 620 354 607 575 607 2 , 860 S04 337 263 13 90 112 7 , 420 350 675 559 591 1,1'70 982 329 254 14 95 102 1 ,?80 2 , 960 559 643 607 916 527 323 251 15 90 107 3 , 610 3 , 220 527 543 591 8 44 2 , 1-10 315 248 

16 99 108 14 , 200 649 511 54~ 591 2,130 2 , ? 30 309 259 17 9 4 113 4 ,300 413 495 575 575 3,130 801 06 366 18 90 107 1 , 080 371 479 1 , 530 575 1,670 6 23 300 278 19 8 3 105 988 ~45 6~ 5 ,150 559 1,010 543 298 258 20 66 108 1 , 580 334 463 2 , 540 527 495 294 252 

21 88 112 1 , 220 326 447 1 ,460 571 al ,230 463 291 244 22 93 1 , 7 40 739 2 447 1 , 230 1 , 330 479 287 242 23 90 8 , 600 607 314 1,:no 1 , 120 2 , 220 439 288 237 24 99 2 ,6:lt> 559 309 2 , 360 1 ,020 10 , 700 42:1 278 248 25 124 4 ,430 527 299 1 ,070 952 2 ,840 &1,000 392 285 240 

26 148 1 , 460 511 299 688 1 , 000 2 ,380 404 264 237 27 127 507 656 292 6 23 2 , 100 1 1 , 600 390 270 231 28 113 377 739 297 591 1 , 390 1 5 , 600 389 266 230 29 112 319 655 293 952 8 ,180 379 271 228 30 91 276 559 284 8 6 2 3,100 ~76 

~~ 227 31 1 , 420 527 282 826 367 

Wonth Second- Mu:i cwa ll1nim:WI lie an Runorr in ot~ays acre-teet 

Oc t ober . . . ··· ·· ···· ····· ·· 4 ,414 1 , 420 8~ 142 6 ,760 November ... ... ... ... .... . 27 ,478 8 ,600 102 916 54 , 500 Decembe r ... ... .... .. ..... ... 52 ,762 1 4, 200 208 1,702 104,600 - ------ Calendar year 1940 .... .... .... ...... 150 ,438 14 , 200 76 411 296 , 400 

------- January .. ............ .... ....... .. .. 16 , 862 3 , 220 282 544 33,430 

Februa ry ........ . ............. •.. ........ 26 , 379 4 , 310 447 94 2 52 , 320 

March .........•.. ..•..•. . ... • . .... . . •.. 32 ~ 5 , 160 511 1, 06~ 65 , 380 

April .. ,, ...... .......... ............. 73 , 251 15 , 600 527 2 , 442 14 00 

lla y . .............. . .. . ..... .. . ........ . .. 6 2 , 790 10 , 300 2 , 025 124 , 500 

June .... . .. ... .. • .......•.. • ..... •. . ..... 43 , 657 6 , 500 1 , 4-55 86 , 590 

Ju l y ........ ..... ..... ...... ....... ..... 20 ,45'7 2 , 730 367 660 40 ,580 

August ., ... . ........ ...... .. . 10 , 107 557 260 326 20 , 050 

Septe.11ber . .. 7 , 598 366 227 253 15 , 070 

Wate r y ear 194o-41 .... . ... .. .. . . 3'78 , 698 15 ,600 83 1 ,038 751 , 100 

Peak die charge.- Nov. 23 (5:30 p .m. ) 10 , 800 aec . - rt . ; Deo . 16 (10: 45 o .m. ) 16,900 se c.-tt. ; 

Apr . 24 (8 a .m . ) 13 , 800 aec . - rt .. ; Apr . 28 (8 a .m .) 17 , 400 sec. --r t.; May 3 (9 p .m. ) 1 3 , 000 aec .-rt. 

a No, gage -he ight recor d; discharge computed on bas h or records !or ata t1 one at Luling and Plum 

Creek near Lul ing . 
OUADALUPg RIVgR BASIN 137 

Blanco RIve r at Wimber l ey , Tex. 

Location.- Water-stage recorde r, l a t. 29°59 ' , l ong . 96°04', 600 tee t downstream !rom Cypress Creek and a quarter o! a m!le south or Wimber ley , Hays County . Datum ot gage 18 602.2 teet above mean sea level , datum ot 1929 . 

Drainage area.- 376 square miles. 

Records available.- Augus t 1924 to Sep t ember 1926, June 1926 t o Sept ember 1941 . 

Average discharge.- 15 yea rs, 111 s econd-teet. 

i?Ctremes .- Maximum discharge during year, 23,700 second- t eet June 7 (gage he ight, 16 .27 t eet); minimum, 2 .9 second-feet Oct. 5 , 6. 

1924-26, 1926-41: Maximum dis charge , 113, 000 se cond- t ee t May 26 , 1929 (gage height, 31.10 tee t, !rom tloodmarks), by slope-area method ; m!n!mum , that o! Oc t. 5 , 6, 1940. 

~- Records good. No d! ve rsi on above stat ion. 

Discharge , 1..n second-teet water year Oc tober 1940 to September 1941 

Da Oct . Nov . Dac . Jan . Feb . Mar . Apr . llay June July Aug. Sept . 

1 4 . 6 23 51 202 3 , 530 298 448 93 2 235 250 79 43 

2 4.0 27 47 19 2 1 , 240 290 433 1,410 228 239 76 43 

3 4.0 e.9 43 le2 719 290 519 3 , 020 224 259 74 u 4 4 . 0 6.e 39 175 595 27e 40e 1 , 310 228 3 27 74 41 

5 3.5 6.2 37 16e 624 262 379 1 , 300 210 228 74 41 

6 4.0 6 . e o36 159 609 732 379 1 , 510 210 210 74 39 

7 e.9 6.2 o36 152 He 493 44e 963 4,760 199 74 39 

e 6 .4 6.4 o36 146 443 351 347 83e 57e 192 71 39 

9 4,6 7.0 33 139 458 333 324 751 l58 le2 69 44 

10 4.6 7.9 29 133 39e 324 307 677 612 176 66 43 

11 4,E 11 1,710 130 366 294 294 1 ,640 551 17e 64 41 

12 6. 12 1 , 050 1.26 342 2e6 286 1,040 428 17e 62 41 

13 4 . E 13 523 126 333 27e 294 6e9 64.1 194 60 41 

14 6 . 12 264 152 298 286 290 612 351 341 57 u 

16 6 . 12 4 , 070 139 286 282 286 556 333 241 57 u 

16 6 . 13 e22 126 274 258 270 519 2,1'1'0 336 56 41 

17 6 . 13 47 117 270 432 270 49e 640 192 53 44 

18 7.( 13 366 112 262 2,810 254 473 46e 152 53 41 

19 7 . 9.e 316 109 250 1 ,190 250 463 408 H2 61 u 20 e. 9 . ! 29e 112 247 963 243 423 370 133 51 41 

21 e . 9 . e 254 109 236 811 262 C03 342 12<1 49 41 

22 6. 25 ~ 106 235 7 46 311 408 324 123 49 39 

23 S.E 2,180 100 426 671 282 3e3 316 117 49 39 

24 6 . 697 199 100 4e3 607 282 366 286 114 49 39 

25 6 . 3H 188 95 37( 668 250 329 270 109 (9 37 

26 6 .! 152 ;~~ ~; 351 636 1 , 440 311 724 106 47 37 

27 5. 103 324 671 3 , 110 294 840 100 44 37 

28 4. 79 2?~ ~~ 307 546 1 , 860 282 342 95 43 36 

29 4 . 64 ~: - 509 1,:570 270 294 92 43 36 

30 4. 55 :: - 488 1 , 110 262 270 87 43 36 

31 24 - 21 - <68 - 250 - 8 4 43 - lloptb Second- Maximum Min.imwa lie an Runoff in 

toot-days aore-teet 

October ...... . . ... .. .... .... ............... 193.3 2< 3 . 5 6 . 24 383 

Novellber .. ........ ............ .. ........... 699 .6 2,180 5. 2 130 7 ,7~0 

Decembe r ........ . . ..... .... ... ..... .. . ····· 12,845 4,070 29 414 2s,.ao - ------ - ----- ------ ------ --- --- Calendar year 1940 ........ ... .... ....... 25 ~29 .4 4,070 3 . 5 69.2 50 ,2:50 

--- ---- ------ ------ ------ ------ January . .... . ... . . . ...... • . .. ... . . . ..... ... ~,965 202 8 9 128 7 , 860 

February ······· ·· · · ·•· ·• · ............. 14,526 3 , 530 235 619 28 , 810 

March ...... . . .. ... ... ... ...... . ... .. .. .. . .. 17 ,410 2,810 268 562 34 , 5 30 

April .........•....... . ..... •..•.•• .•. . .. .. 17 , 006 3 ,110 243 567 33,730 

May . . . ....... . •. .... ..... ..... ...... . ...... 23 , 062 3 ,020 250 744 45,740 

Ju.ne .......... , .. • ..•.•. . • • . •.•. ... . .. ..... l e , 111 4 ,?60 210 604 35 , 920 

July .. .. ...... . ..• . . . . . . ........ ........... 5 , 500 341 8 4 177 10 , 910 

August .......... .... ............ .... ........ . 1 , 802 79 •s 58 . 1 3 , 570 

September .. ....... .. ....... .... .. . . . . . . . . . . 1,200 H 35 40.0 2 ,380 

W'ater year 1940-41 ... .... ... . .. . ........ 119,519 . 9 4,760 3.5 327 23'7 , 000 

6 ,h6f a:!~~,f.~oM~/';c( l;.!: T ;:{~ !~~ .~ ~~: r~~ ;b( la~:J·~;; !..,~·~.~~~:-rt.; Apr. 27 (e p.m . > 

a No gago-be1gbt record; dla obarge computed on bash ot known range in etage and weather reoorda . 
138 GUADALUPE RIVER BASIN 

Plum Cr eek near Luling, Tex . 

Location .- Water- stage recorder, lat . 29°42', long . 9? 0 37 ', at county highway bridge 1 mile downstream from west Fork or Plum Creek , 2 miles upstream !rom Texas & New Orleans (Galveston, Harrisburg and San Antonio) Railroad bridge , and 3 miles northeast 

of Luling, Caldwell County . Datum of gage Is 326.6 feet above mean sea l evel, datum 

or 1929 . 

Drainage area .- 356 square miles . 

Records available.- March 1930 to September 1941. 

Average discharge .- 11 years, 101 second-feet. 

Extremes .- Max imum discharge during year, 10, 600 second-feet Apr . 24 (gage he i ght , 16.07 

t eet) ; min imum, 1.4 second- feet Oct . 11, 14 . 1930-41 : l'laXImum discharge , 76,500 second- fee July l , 1936 (gage he i ght , 25 .7 r eet, rrom noodmarl<s) , from rating curve extended above 54, 000 second-teet; m1n1mum, 0 .7 second-foot Oct . 24, 1939 . F'lood tn December 1913 reached about the same stage as tha t or July l, 1936 , acco rd- Ing to lnronnat lon furnished by local residents. 

Remarks .- 1\P.cords good . No diversion above s at t on . Slight r egula !on during low water ---oyoTl fleld operati ons above stati on . 

Discharge . ln second-feet , water year October 1040 to September 1941 

Day 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Oct . 

2 .3 

.~ 

2 . 8 2 . 6 2 .! 

t? 

2.2 

2 . 

2. 

;:~ 

L 

~. 

! 2 . 

2 . 

2.! 

~. 

2 . 

u 

6. 

12 

s. 

::e 

3 . 

424 

Nov . 

296 

16 

6. 4 8 . 7 734 

154 

14 

7 . 0 

6.0 

6.0 

36 

18 

a17 

a 15 

al4 

a12 

all 

:~:l 6. 4 

6.7 1,720 

3, 760 

674 2 , 020 

279 

52 

28 

20 

17 

Dec . 

15 

12 

11 

9 . 6 9 . 0 

11 

3 45 

78 

17 

12 

815 3 , 760 2 ,390 171 1 , 930 

5 ,140 

240 

a63 

70 

415 

298 

73 

46 

38 

36 

36 

200 

146 

47 

35 

33 

Month 

October .. ...... . November . .... . . . Decembe r . . 

Calendar year 1940 

Jan . 

31 

31 

29 

27 

26 

25 

25 

24 

24 

24 

23 

22 

24 2 .920 

104 

74 

u 

32 

26 

25 

22 

20 

20 

19 

19 

17 

16 

17 

17 

17 

17 

Feb. 

367 1 , 470 

224 

47 

36 

36 

36 

37 

40 

42 

30 

26 

25 

22 

20 

18 

18 

19 

17 

18 

18 

18 

325 

839 

165 

50 

38 

32 

War . 

27 

25 

24 

23 

22 

24 

4~7 

110 3e 

~0 

26 

23 

22 

21 

20 

20 

26 

768 2,110 

297 

129 

59 

48 

40 

36 

140 

895 

190 

51 

~8 

36 

Apr . 

33 

~1 

64 

42 

28 

31 

627 

86 

30 

23 

21 

20 

19 

21 

22 

23 

24 

23 

22 

19 

33 

273 2,850 

5 , 780 

509 

1 , 060 5,280 

4,380 

1,970 

360 

165 

1~0 

3,520 

2 ,700 

594 

542 

160 

87 

60 

••e 

1 52 

860 

108 a48 

a34 

a27 

a23 

a22 

&99 

224 

228 

eee 1,390 

124 

&52 

a37 

a38 

46 

142 

43 

31 

June 

26 

24 

22 

269 

71 

27 

~89 

3 , 610 

627 141 

1 , 960 

829 

134 

6 4 a40 

506 

745 

129 

60 

a48 

59 

162 

f69 

122 

f52 

f47 

750 

125 

a46 

a31 

July 

20 

18 

17 

12~ 

24 

16 

12 

11 

11 

ll 

11 

464 

280 

28 1,580 

1 ,350 

8 3 

~8 

22 

17 

16 

14 

14 

12 

12 

12 

12 

11 

11 

9.6 

9.0 

Aug. 

8. 6 8 . 6 8 .6 

7.8 

36 

135 

~6 

187 

19 

11 

9.0 

8.6 

7.8 

6 . 7 6 .4 

6 .4 

6 .4 

6.0 

5.7 

5.4 

5.1 

5.1 

5 . 1 5.4 

4.8 

4.3 

4.3 

4.8 

4.8 

4 .6 

4.6 

Sa pl. 

4 . 6 4. 6 4. 6 4.3 

4.3 

4.0 

4.0 

ae.e 

a8.6 

a8.2 

a8.2 

a8 . 2 a7 . 8 a7.8 

a7.8 

al9 

a30 

a16 

al3 

al2 

&12 

5.1 

5 .1 

5.4 

5.7 

5.1 

4.6 

4.6 

4 . 6 4 . 6 

Secondroot-days Maximum Minlmwa !loan Runott 1.n 

acre-teet 

525.9 9 ,971.3 

16,501.6 

39,713.4 

424 1.8 17.0 1,040 3, 760 6.0 332 19 , 780 5 , 140 9.0 532 32,730 

5, 140 1. 4 109 78,770 

January .... . . . . . . ... . ... . .. . .. .... ... . , . 3 , 758 2,920 16 121 7,450 

February . . . ... . .. . . .. .... . .. . .. 4,033 1,470 17 144 8,000 March .. . .... .. . . . . . . . . . . .. . . .. . . . . . 5,755 2 ,110 20 186 11,410 

April. . . . . . . . .•. ... ... . ... . .. . . . 23 ,704 5,780 19 790 47,020 llay . . . . . . . . . . • . . • . . . . . • . • . . • . . . . • . . .. . • . . . . 12,622 3 , 520 22 407 25,040 June . . . . . .... . .. ..... , . . . . . . . . . . . . 11 ,16 4 3, 610 22 372 22 , 140 

July. . . .... ...... . ..... .. ... . ... .... . . ..... 4,268.6 1,580 9.0 138 8,470 August. .. .. . . . . . . . . . . . . . • . . . . 678.9 187 4.3 21.9 1 , 350 

Soptombo r . . . . .......... . • .. •. .. .•. . • . .•. • . . f--::---:2-,.4_2_. +--,..-,.,.30~--- .,. o+--8-·_o_8+--- l 

Water year 1940 9 3, 224 .7 5 , 780 1 .8 255 184,900 -41 

Peak discharge.- Nov. 23 (8 p.m. } 6 , 850 sec. - ft . ; De c . 16 ( 4 a.m.) 9 , 000 sec. -ft. ; Apr. 24 (1 a.m. ) 10 ,600 sec .-lt.; Apr. 27 (3 p.m. ) 5, 780 38C .-ft .; June 8 (12 :30 p.m. ) 5 ,520 sec. -ft. a No gage-he ight rocord; discharge c omputed on basis of records f o r stations on San Marcos River 

at Ottine and Luling . f Fragmentar,. gage-be1ght re cord ; dhcharge computed from pa rtly est1matod gage heights. 
GUADALUPE RIVER BASIN 139 

Cole to Cr eek near VIctoria, Tex . 

Location. - Water -stage r ecorder and conc r ete cont r ol, lat. 28°<j;3', long. 9? 0 08 ' , at bridge on 0. S. Highway 96 , 100 !set upstr eam !rom bridge or Texas & New Orleans Railroad , l.l 

miles downstream !rom Perd ido Cr eek, and 9 .4 miles southwest or Victoria, VIctoria 

County . Datum or gage Is 49 .2 reet above oean sea level, datum o r 1929. 

Drai nage area .- 514 square miles. 

Records available.- June 1939 to Sept embe r 1941 . 

Extremes.- Maximum d ischarge during year, 48 , 200 second-fee t llov. 25 (gage height, 24 .25 

fe e t) ; minimum, 1.3 se cond-rest Oct. 5 , 6. 

1939- 41: !1aXImum discharge , that or Nov. 25, 194{); minimum, 0 .5 second-root July 9, 

1939 . 

Maximum stage known , 27.2 r eet July l , 1936, at railroad bridge 100 feet downstream, according to 1n! ormat i on furnished by railroad company. 

Rema r ks .- Records fair except t hose above 5 , 000 second-rest and t hose f or peri od or no ---gage=height record , which are poor . No large diversion above station . 

Discha rge , in second-teet, water year Oc t obe r 1940 t o SepteJDber 1941 

0~ Oct . Nov. Dec . Jan . Feb . War. Apr . llay June July Aug. Sept . 

1 1.6 2 , 200 146 66 27 29 56 177 a90 60 27 18 2 1.4 406 117 57 72 27 51 569 a72 51 25 18 3 1.6 195 10 ~ 50 61 27 49 13,400 •e 24 17 4 1.4 13e 92 4e ~2 27 42 1 , 1?0 H 2~ 17 5 1. 4 1 ,380 e4 46 27 24 ~8 2, 240 42 2~ 16 

6 1.3 1 , 620 79 43 66 34 3e 2,300 40 30 16 7 2 . 0 326 363 42 85 169 1,190 e74 39 161 16 8 3 . 0 179 384 41 169 81 372 298 a481 38 117 18 9 2.2 140 124 39 216 46 116 195 37 76 24 10 1.8 117 73 38 eo 33 78 154 36 53 48 

11 2 . 0 100 73 36 4e 27 59 134 3e 40 65 12 2.7 e7 20e 35 40 24 52 123 3 , 140 33 •e 13 2.2 79 284 35 35 21 •e 103 2,450 31 32 14 2.2 73 126 5e1 31 21 43 92 2 , 700 2e 25 15 19 6e 960 551 31 22 41 79 716 27 23 

16 6.9 64 950 45 30 24 3e 

"} 356 25 33 17 4.9 60 214 35 29 31 35 66 199 24 31 1e 4.0 57 103 31 27 1 , 610 33 60 140 23 24 19 3 . 3 5 4 110 30 27 1 , 400 33 56 115 22 27 20 2 .7 52 3 , 140 29 27 60e 32 52 101 21 20 a 55 

21 2 . 7 53 l, 460 30 27 290 29 66 e2 21 1e 22 2 . 4 5 4 3e1 30 34 156 38 2,060 72 20 17 23 2 . 4 5 4 213 30 H 103 39 1 , 220 63 20 17 24 2 . 4 e . e .o 154 2e 72 e7 e2 1,100 55 19 1e 25 5 . • 14.200 286 28 59 676 58 336 49 19 17 

26 166 865 570 2e 42 2e7 479 154 e1 44 1e 18 27 93 39 4 469 2e 35 124 3 , 290 105 585 39 1e 1e 28 61 270 200 52 30 e• 5 , 770 165 261 36 1e 17 29 990 213 117 3 4 72 1 , 410 416 105 32 20 15 30 508 179 e7 27 6 4 4e4 al97 73 30 21 16 31 2 , 450 74 24 60 a.lOB 29 20 

Month Second- Maximum IUni•wa lie an Runo t t in root-days acre-teet 

Oc tober ....... ... ·· ········ ·· ···· 4.350.9 2,450 1.3 140 8,630 November .. . ...... ···· ····· ···· ······· ····· · 32. 517 14, 200 52 1,084 64 , 500 December . . ....... ... .. .... .... ...... 11, 744 3,140 73 379 23, 290 

- ------ Calendar year 1940 ····· · ··· · ••oo•oo·•··· eo . e2e . 9 1e, 600 1.3 221 160 , 300 

------- January . . ......... . . . ... . o ..• .. ... o .• 0 ••••• 2,217 5e1 24 71.5 4,400 

Febru.ary . . . ..... .... .. . . . . ..•.......•...... l. 503 216 27 53 . 7 2 , 9eO 

March ......... .. ······· · ··• · o•······ · ······ 6,278 1,610 21 203 12,450 Ap ril . ......... ... ................. 14 , 121 5 , 770 29 471 28,010 

May ......... .......... ... . .. ............... 2e, 14l 13 ,400 52 90e 55 , 820 

June ... .. . . .......... . . . . . . . ...• . . . . . ...... e . 170 272 16, 200 

July .......... ... . . .•..•..• . ... •..•..•.. . . 10, 922 3,140 29 352 21,660 

August . .. .............. . . .. ... .... •. .. ..... 1 , 047 161 1e ~U 1 2 , 080 

September . .............. . ... . .... . . .. •. . ... 706 65 16 1 ,400 

Water year 1940-41 · ··········· · · · · · · 121 , 716 , g 14,200 1.3 333 241,400 

Peak discharge.- Oct. 31 (4 :30 p.m. } 7 , 460 sec .-ft .; Nov. 25 (12:30 ..... ) 48,200 aec .-tt . ; Apr . 2e (2 :30a.m.) 9,600 aec .-tt.; llay 3 (7 a . m.) 23 ,600 aeo. - tt.; July 12 (11 a.m. ) 8 ,460 aeo. -rt.; July 13 

(9 p.m . ) 7,300 aec .- rt. a No gage - height reoord; dhcbarge oompu.ted on baa1a ot weo.ther recorda . 

498588 0 - 43 - 10 
140 OUADAWPE RIVD\ BASIN 

San Antonio River at San Antonio, Tex. 

Location .- Water-stage r ecorder, lat. 29°24 ' 35' , long . 98°29 ' 40", at South Alamo Street 

bridge in San Antonio , Bexar County , 2.1 m!les upstream from San Pedro Creek. Datum or gage ts 612.3 feet a bove mean sea l evel, datum or 1929 . 

Drainage area .- 38 square m!les. 

Recor ds available .- January 1915 to November 1929 , February 1939 to September 1941. Estimated monthly ground-water d ischar ge contained in Wa ter-Supply Paper 773-B. 

Ave rage discharge .- 16 years {1915- 29 , 1939- 41) , 70.6 second-feet . 

Extreme s .- Maximum discharge during year, 1,470 second-feet Apr. 28 {gage he i ght , 5.76 t eet); minimum, 6 .3 second-feet {regulated) Dec . 4, 5; minimum dally, 10 second-f eet Dec . 4 . 1915- 29, 1939- 41 : Maximum discharge , 15,300 second-feet Sept. 10, 1921 (gage height , 20.14 f eet, !rom !loodmark), by slope-area method; no !low at times because or regulation. Flood or July 5, 1819, equalled or exceeded that or Sept . 10, 1921. 

Remarks .- Records poor. Normal !low or river comes !rom springs. Diurnal fluctuation 

---caused by industrial pumping !rom wells (depleting the under-ground · reservo ir) above station. Diver sions above station !or irrigation and i ndustrial uses. 

Discharge, in seoond-teet , water year October 1940 to Septellber 194.1 

Da Oct . Nov . Dec . Jan. Feb. Mar . Apr . llay June July Aug . Sept . 

l 14 35 13 24 86 63 92 135 129 126 76 52 2 17 16 14 24 57 64 93 221 129 124 7 4 51 3 16 16 H 24 34 70 87 319 128 123 74 48 4 17 16 10 22 37 63 87 H3 132 119 74 47 5 17 28 12 23 42 6 4 87 224 129 116 73 40 

6 16 16 15 23 53 66 100 236 129 105 76 42 7 90 16 14 22 43 62 91 151 134 105 76 .. 8 25 15 13 23 70 60 91 H7 128 98 77 so 9 16 16 16 22 55 63 88 149 132 95 79 72 10 16 15 13 22 64 64 92 147 140 97 79 59 

11 16 16 18 22 60 59 88 149 132 118 80 59 12 17 14 49 22 63 so 89 149 130 100 76 62 13 16 15 14 32 63 53 93 149 132 105 •• 61 14 28 14 31 25 56 55 96 147 128 108 H 59 15 12 H 177 24 63 54 95 147 128 108 73 89 

16 12 14 38 24 64 56 96 142 208 112 70 6 4 

17 16 14 21 23 71 150 99 143 128 lOS 71 400 

18 12 15 21 22 64 118 95 140 126 lOS 76 93 

19 12 15 27 22 6 4 70 85 140 128 100 67 87 

20 14 16 32 22 64 75 86 138 124 100 70 88 

21 20 16 23 22 57 77 93 154 124 102 70 88 

22 14 .. 25 24 66 eo 96 142 124 97 67 92 

23 14 22 24 24 88 81 113 H9 126 93 62 90 

24 49 26 26 18 68 87 89 142 123 88 62 88 

25 122 18 26 23 64 88 85 142 124 88 67 eo 

26 37 14 28 26 6 4 119 231 138 146 87 62 82 27 16 15 27 86 64 95 527 138 126 87 56 82, 28 16 14 27 37 56 87 597 136 126 85 56 82 29 23 14 26 27 - 88 135 135 130 80 52 88 30 17 14 24 25 - 89 126 134 130 79 50 87 31 205 - 24 56 - 91 - 130 - 77 51 -

Wonth Second- Maximum Minimum Moan Runorr in root,..:.days acre-teet 

October . . ... . . . .. . . . .... . .. . . . . . . . . . . . . . . . 932 205 12 30.1 1,850 

November. ... . ......... . ... .. .......... ... 532 44 14 17.7 1,060 

December. . ...... .... . . . . . ..... . ... ..... .. . . 8 42 177 10 27 . 2 1 , 670 

-- ----- ------ ------ ------ -- ---- Calendar year 1940 . . . .. . . ... . . . . . . . . . . . . 8,181 311 10 22.4 16 , 230 

------- ----- - ------ ------ - - ---- J anuary . . . .. .... . . .. .. . . . . ... . .. ... · • · · 835 86 18 26 . 9 1, 660 

February ... . ...... . . . .. . . .. ··•· .. ... ....... 1, 700 88 34 60 . 7 3,370 

March ... . ... ........ .......... . . . . . . . . . . . . . 2, 361 150 50 76.2 4,680 

April. . . . . . . . . . . . ···· ·· ... .... . . .. . . ... .. .. 3,921 597 85 131 7 ,780 

Nay . . . . . . . . . . . . . . . . . ... . . · · ··•· . . . . . .. . . . . . 4,856 319 130 157 9,630 

June .. .... ..... . . .... . . .. ...... . ...... ..... 3 , 963 208 123 132 7 , 840 

J uly . . . ........•.. , . ..... ... . . . .... ... . . 3,132 126 77 101 6 ,210 

August . . . ... . ... . .. . . . . . . . . . . . ··•· ····· .. 2,144 80 so 69 .2 4,260 

Septe•ber .. ..... . ...... . . . .. . .. . .. .... ..... 2, 4,26 100 40 80.9 4,810 

Water year 1940-4~ ····· ........... ... . 27 . 634 597 10 75.7 54 , 810 
GUADALUPE: RIVE:R BABIN 14-1 

San Antonio River near F'alls Clty, Tex. 

Location.- Water-stage recorder, lat. 28°57'05", long. 98°03'55", at highway bridge hal! a mlle upstream !rom Scared Dog Creek and 3.4 mllee s outhwest o! ralls City, Karnes 

County. Datum or gage is 285.5 t eet above mean sea level, datum or 1929. 

Drainage area .- 2 , 067 square mlles. 

Re cords available.- Aprll 1925 to September 1941. 

Average discharge.- 16 years, 294 second-teet. 

Extremes.- Maximum discharge during year, 6 , 620 second-teet Nov. 6 (gage helght, 8.70 t eet); mi nimum, 83 second-teet Oct. 6. 1925-41: Maximum discharge , 16, 200 second-teet July 3, 1936 ; maximum gage height , 22 .3 t eet June 131 1935 (atrected by backwater); minimum discharge, 36 second-teet 

May 11, 12, 1928 \gage height, 0 . 97 toot ) . Maximum stage known, 28.36 teet In October 1913 , according t o ln!ormatlon furnished 

by local residents. 

Remarks.- Records good except those tor periods ot no gage- helght record , whi ch are poor . ----riOWpartly regulated by Medina Reservoi r ( capac! cy , 254,000 acre-teet). Medi na Canal 

diverts water above station. 

Rating table, water year 1940-41 (gage height, 1n teet, and dhcharge,. 1n eeoond-teet) 

(Sh1tt1ng-oontrol aetbod. ueed Oct. l-26, Dec. 19 to Jan. 28) 

1 . 1 S7 3.0 1 , 270 6.0 4.,~20 

l. 4 196 ~-5 1 ,760 7 .0 5 ,260 

l. s 395 4.0 2,260 s.o 6,0SO 

2.0 515 4.6 2, 780 

2.5 81;0 6.0 3,300 

Discharge , 1n second-teet. water year October 1940 to Septeaber 19·U 

~ Oct. Nov. Deo . Jan . Feb . Mar . Apr . May June July Aug . Sept . 

1 9S 1 , SlO 137 155 488 23S a310 1, 470 362 27S 196 189 

2 9S 2.670 130 152 1,320 225 a295 1 ,140 340 27S 189 170 

3 9S 1 , 110 130 145 3 , 400 225 a280 2,980 419 253 192 166 

4 94 286 127 145 3,620 234 &270 2 ,670 1,760 243 189 163 5 9 4 2,860 127 146 1.030 234 a265 2 ,110 4:!0 238 189 163 

6 87 6 ,160 123 145 660 225 &260 2,010 368 234 196 163 

7 94 3,290 254 148 558 221 a400 2 ,410 346 221 HO 170 

8 123 412 318 152 577 &218 a400 1 .120 340 230 309 166 

9 2 48 253 152 145 552 &215 &310 666 340 234 324 166 

10 145 204 134 137 478 a212 263 565 330 221 213 153 ' 

11 123 185 137 134 395 .. 208 238 5 46 364 217 204 192 

12 112 174 Hl 130 362 a205 234 515 2,170 213 196 181 

13 105 166 365 127 330 a202 234 609 629 263 196 181 

14 109 152 1,050 185 314 al99 234 540 395 243 192 178 

15 159 Hl 1, 070 225 288 a l 97 253 48 4 362 243 lSI; 181 

16 1.23 Hl 3,200 174 278 al94 25Z 454 602 26Z 174 192 

17 112 Hl 2 , 060 H8 273 a230 248 436 957 243 174 2 , 380 

18 98 137 766 137 273 a500 25Z 407 820 258 174 2 ,110 

19 98 130 390 137 268 al,OOO 258 390 590 

~~ 178 1 ,460 

20 91 130 518 137 258 a600 243 37Z 401 174 530 

21 94 127 560 Hl 253 aUO 238 512 335 221 166 319 

22 94 416 686 H5 248 aZSO 234 430 Z09 2ZO 163 253 

23 101 296 304 148 258 a3ZO 25Z H8 293 230 163 234 

24 101 786 2011 H8 298 &400 258 521 309 221 163 2:!0 

26 123 296 185 H5 340 a4QO 304 590 319 217 166 2:!0 

26 694 217 174 137 293 a410 503 497 Z04 2011 163 2:!0 

2:1 630 192 1 78 1,110 253 a370 1, 740 436 401 209 159 213 

28 457 166 174 1, 750 243 a360 3, 620 448 37Z 204 174 209 

29 213 Hl 166 815 - aZ55 4,020 6U Z68 204 174 2011 

30 166 Hl 163 660 - •350 4,320 454 288 204 1.78 209 

31 1,:570 - 155 608 - a340 - 368 - 204 178 -

Month Second- ll&xiaulo • ltin.Uua Moan Ruoott in too~• acre-teet 

Ootober ...... , ... . .. ........ .... ...... ... .. 6,Z52 1,370 87 205 12,600 

Nove•be r . ....... . . .. ... .... ....... , ........ 2:5 ,:520 6,160 127 777 46,250 

Dececber ..... . . . . . .. ... ............... ... .. H,282 Z,200 123 461 28,3ZO 

------- ------ ------ ------ ----- - Calendar year 1940 ... . . . .. .. ... .. . . . . ... 101,774 6,160 69 27S 201 ,900 

------- ------ -- - --- ------ -- --- - January .... ... . .. . ..... . •. . .......... . . . . . . 8,810 1,760 127 284 17,470 

February . . . ... . ... . • . .•. .. . • .....•. • ... . ... 17,90S 3,620 24Z 640 35,520 

March .. ... . . . •. . , .... .. . • . . • .. •........... . 9,947 1.ooo 194 321 19,730 

April . . ... . .. • • . •..•. . •. . •. • ..•..•. . •.... .. 20,981 4,320 234 699 41,620 

May .. ... . . .. . . . . .. . . . . .. . . . . .. ... .. . ..... . . 27,143 2,980 368 876 -5:5 ,840 

June .... . ... . .... .. •. .. .. .... . . o o •••••• • •• • 16,824. 2,170 288 521 ~0,990 

July . .. .......... . ... .. ......... .. . . . . .... . 7 ,186 278 204 232 14,250 

Augu.at . .......... ... .. . . . 0 •• • • , •• • • • • • •• • • • 8,1~1 uo 159 198 1.2,160 

Septe•ber . .......... . .... .... .. . ... ... . ... . 11 ,610 2,380 163 387 2:5,030 

Water year 1940-41 .... .... . .. . . .. . . . . .. 169,293 e, 160 87 464 33&, 800 

Peak dhoharse . - NO Yo 6 (6 p.a.) 6,820 aeo. - tt.; Feb. 4 (4 a.a.) 4,610 aeo.-ttoJ .lpr. 27 (12 p.a,) 

4,890 aeo.-tt . J lpr. :SO (6 a.a.) 4,980 aeo . -rt. ; Ml.7 ~ (1 a.a.) 4,700 aec~-rt.J June 4 (5 a . a.) 

4,120 aec. -rt. 

a No gage-height reoorc1J c1.1aobarge ooaputec1. em b&a!a of known rans• in et~e, reoorc1 a for atat!on at Oo11ad , and weat.ber rooord.e . 
142 GUADALUPE RIVER BASIN 

San Antonio River at Ool!ad, Tex. 

Location.- Water-stage recorder, lat. 28°39 ', long. 97°23 ', at bridge on State Highway 29, 1.3 m!les southeast or courthouse In Ool!ad, Ool!ad County, and lO mlles upstream trom Manahullla Creel<. Datum or gage Is 90.6 teet above mean sea level, unadjusted . 

Drainage area .- 3,914 square m!les. 

Records ava i l abl e .- June 1924 t o March 1929 , February 1939 to September 1941. 

Extremes.- Maximum dis charge duri ng year, 15 , 700 second-teet May l (gage height, 34.55 rest); mlnlmum, 107 second-teet Oct. 22 . 1924-29, 1939-41: Maxlmum discharge, that or May 1, 1941; mlnlmum observed, 44 

second-teet several pe riods ln 1927. 

Maxlmum stage l<nown, about 45 .6 t ee t, present sl te and datum, ln October 1913, trom tloodmarl< at tormer sl te, acco rding to lntormatl on tumlshed by local resldents. 

Remarl<.s.- Records poor. Low tlow partly regulated by Medlna Reservoir (capacity , 254,000 ---acre=reet). Water dlverted at Medlna Rese rvolr tor lrrlgatlon and In c lty or San 

Antonio tor lndustrlal use and munlclpal supply. 

Discharge in second-reel water year October 104-0 to September 1941 

Day Oct. Nov . Dec . Jan . I Feb. Yar . Apr . llay Juno Jul y Aug . Sept . 

1 128 ~.960 ~71 344 '" l 452 15,000 596 725 1 ~~5 249 

2 121 7 , 000 ~53 3~5 8 70 407 9,800 524 560 ~26 249 

3 114 4,960 ~26 ~17 ~,1:50 ~80 7,000 488 506 30S 26~ 

4 114 2 ,280 ~08 308 4. 750 371 9,200 9S7 470 299 240 

5 114 801 290 . 290 4,790 362 11 , 900 6;240 4~4 299 229 

a290 

6 110 3 ,760 290 290 2,9~0 ~44 ~,200 5 , 600 407 299 225 

7 11S 8,600 ~26 281 1, 210 ~44 10, 000 1,140 ~98 48S 229 

8 118 10, 600 474 

:::1 986 614 8,760 726 389 2,920 227 

9 114 4,210 1, 570 1,120 986 5,200 614 ~71 2 ,280 2~6 

10 128 706 821 272 1,350 560 1,720 560 :571 I 687 238 

11 241 524 407 26~ 881 290 ~89 1,2~0 1 ,050 1 1 , ~i~ I 488 254 

12 162 470 488 250 725 2el 344 1,160 3,250 371 245 

13 135 452 744 ~!~ I 596 281 ~17 1,440 4,210 1 1. 480 I 344 26~ 

14 125 360 1, 640 272 299 1,720 ~.100 8,300 317 252 

15 120 ~44 2, 200 386 ~ 290 986 1,370 4 , 100 308 247 

16 2~2 326 2,650 1, 240 1 26~ 290 902 !782 2~0 I 299 250 

17 196 ~17 5,170 ' 506 254 299 782 2 , 000 650 I 281 272 

18 144 299 7,130 3~5 1 ~17 299 744 4:,490 542 i 26~ :5,580 

19 128 308 3 , 170 26:5 1 2,770 290 687 2 , 960 4'10 " 26~ 7 , 680 

20 116 299 4,210 ~1 3 ,550 299 6~2 l , 160 470 I 254 6,~0 

2221 

a410 21 116 299 8,170 1,960 290 706 f860 4~4 263 1,720 

22 108 299 4,580 211 l,OW 281 1, 440 !706 407 1 247 763 

23 111 6~8 

l.~g~ l 207 706 281 1,280 !614 398 240 560 

24 110 600 211 578 272 1,280 !578 398 2~6 470 

25 974 10,8001 632 209 650 308 944 !560 380 232 425 

26 1 , 4:50 7 ,6101 578 204 1 , 790 614 1 7 44 !560 l::l 232 407 

27 1.o~o· 1,670 5061 209 899 1,010 725 !801 2~4 ~71 

28 90 ~~~~ 445 840 578 6 , 560 6~2 801 ~53 2~1 ~62 

29 68 3981 5,140 - 614 11,2001 596 6~2 ~44 240 ~~5 

30 

~~~ 4~4 1 ~so ~.600 - 668 14,400 668 89~ ~~5 26~ ~26 

31 - I ~621 986 - 542 820 - 3~5 247 - Month Second- Ma.ximum Wioiau.a lloan Runorr 1n root-days acr&-teet 

October .. ...... . ............ . . . . . . . . . . . . . . . 9, ~61 ,4 ~0 108 ~02 18,570 

Noveaber. ....... ... ····· ······· ····· ···· 77, 21~ 10, BOO 299 2,674 153,100 

Deceaber . ........... ..... ......... ....... . . 51,291 8,170 290 1 , 655 101,700 

------- ------ ------ ------ ------ Calendar year 1940 . ....... .......... .... 248,402 11 , 300 100 679 492,600 

----- - - ------ ------ ------ --- -- - January . .......................•..•..•. .. 18,986 5,140 204 612 37,660 

February . . .. , ........ . . . ...... . .......... .. 30,289 4,790 - 1,082 60 , 080 

March . ......•.......•..•..•. . . . . . . . . . . . . .. 21,456 3 , 560 254 692 42,560 

April. ........... . ..................... . . .. 43, 162 14,400 272 1, 4:58 85,590 

llay . . . .. .. ................... ..... . . .. ..... 111,698 15,000 596 3,610 221,900 

June . . . . . ... .. .... ....... .... ..... ..... ... 48,851 6, 240 488 1,628 96 ,890 

July . ... . . ............. ... .... ········· ... . 27, 471 8,300 ~~5 886 54,490 

August . . . . . ... . ......... ................. .. 14,094 2 , 920 2~1 455 27,960 

Septeaber . . . ............ .. ... . ...... .. . . ... 27,527 7,680 225 918 54,600 

Water year 1940-41 . . . ········· ··· ··· 481,589 16 , 000 lOB 1,~19 955, 100 

01:

7 

•:n~·g~~~~!sg~e::c~~:~ ~!~~:·~f~ ~oaputed on baaia of recorda for San Antonio Ri·nr near Pall• 

t Frapentar.,. gage-height record; <1hcharge computed from partly eat imated gage halgbte. 
GUADALUPE RIVER BASIN 143 

Medina River near San Antonio, Tex . 

Location.- Wate r-stage recorder, lat . 29°15 ', long . 98°28 ' , at u. s. Highway 281, 5 . 2 miles upstream from San Antonio River and 9 miles south ot San Antonio, Bexar Coun ty. Drainage area. - 1,225 square mlles (587 square mllAs IS above dam t onnlng Med i na Lake ). 

Records ava llatlle .- July 1939 to Septembe r 1940 (OctGbe r 1940 to September 1941 wl t hheld troo publlca tl on ). October 1929 to• Decembe r 1930, re cords below about 50 second-tee t, at Losoya, 1.5 mlles downstream , collected In connection wl th seepage Investigati on . Extre~es 1939 : Maximum discharge during period July to Septembe r, 142 second-teet Aug . 5 (gage height, 3 .54 teet) ; mln!mum, 27 second-teet July 27, 28 . 1939-40 : Max i mum gage height during water yea r , 15 . 97 teet June 30 (discharge not determined); minimum, 21 second-teet Aug . 9, 13 . Maxi mum stage known , about 55 teet In 1912 (prior to construction or Medina Dam , 60 mpes upstream) , according to lnfonnat!on furnished by State Highway Department. Remarks. - Records good except those t or periods or no gage- height reco·rd, whl ch are poor . ---rrow-partly regulated by Medina Lake (capacity , 254 , 000 acre-teet) and dive rs i on dam reservoir (capacity, 4,500 acre-teet) . About 5 , 000 acres are Irrigated by water re- leased from Medina Lake above s ta tlon. 

D1echarge, in eecom- reet, 1939-40 ]9~9 

n.,. JW.,- Aug. Sept. Day July Aug . Sopt. Day July Aug. Sopt . 

1 - 29 29 11 - 37 ~8 21 - ~~ ~6 

2 - ~0 29 12 - ~6 41 22 - ~0 ~9 

3 - 34 29 ~~ - ~6 41 23 - 30 ~6 

4 - 34 ~1 14 - 4 ~9 24 - ~0 

5 - 80 ~0 15 - ~~ 8 25 - ~~ ~· ~~ 

6 - 79 31 16 - 2 39 26 - 30 ~2 

7 - 45 32 17 - 30 45 27 27 29 3~ 

8 - 39 32 18 - 30 37 28 27 29 

9 - 38 32 19 - 4 2 ~7 29 28 31 34 ~· 10 - 37 34 20 - so ~9 30 ~0 30 

~~ ~0 29 ~· - 19~9-40 

D~ Oo t . Nov . Dec . Jan. Feb . War . Apr. llay June July Aug . Sept . 

1 ~ ~5 41 ~9 

·~ ~7 43 40 40 127 43 ~5 

2 3 4 36 41 ~9 46 ~6 42 39 37 7l 80 34 3 34 ~6 41 ~8 52 ~4 40 ~7 36 115 41 ~~ 

4 36 ~6 41 ~8 52 ~2 ~9 ~6 ~6 63 43 32 5 ~7 36 40 38 61 33 39 ~6 36 55 45 ~0 

6 ~8 ~7 37 40 52 ~4 976 36 39 41 38 29 7 37 ~8 

~· 41 48 37 295 37 45 32 37 29 8 37 38 37 41 60 3 6 69 ~8 29 31 36 29 9 37 38 37 40 63 3 4 52 323 28 43 36 30 10 ~9 38 ~9 40 1 24 ~~ 46 240 36 4~ 34 30 

11 40 39 39 40 124 41 43 61 39 36 27 31 12 41 43 41 40 124 ~ 41 47 37 36 22 31 13 41 45 348 40 120 4 5 40 41 u 37 29 31 14 41 39 228 40 112 43 40 ~9 74 271 3~ ~2 

1~ 40 ~8 248 ~9 103 4~ 40 37 81 251 35 ~2 

16 ~9 37 7 39 ~ 45 41 ~6 265 1,060 ~5 ~ 

17 39 36 37 40 76 4 5 39 ~6 82 277 3 4 ~4 

18 ~g 36 ~9 41 63 46 38 36 53 ~ 34 34 19 40 ~5 37 40 57 45 38 347 200 63 64 ~4 

20 ~7 36 38 40 51 43 37 121 127 64 54 ~ 

21 36 ~6 38 41 52 46 37 66 148 55 41 34 22 ~6 36 38 .. 45 55 37 H 75 47 39 36 23 ~6 35 ~9 45 41 51 36 55 52 46 ~7 ~7 

24 ~5 ~5 40 45 41 56 40 91 62 so ~7 37 25 ~3 36 67 .. 40 60 4 2 72 49 45 36 79 

26 34 36 78 •• 39 48 46 46 40 4~ 35 48 27 36 36 48 4~ 39 49 -13 54 41 39 ~5 39 

28 36 36 45 43 39 50 45 55 38 3 2 32 36 

29 36 39 43 43 38 55 45 135 993 3 6 43 35 30 36 40 41 43 - 70 43 68 1, 080 40 51 36 31 36 - 41 43 - 47 - 45 - 60 38 - l1onthly diacharge, in aecond-reet, 1939-40 

l1onth 

J\ll)' 27- 31 , 1939 .. .. .. .. .. .. .. .. .. .. .. .. . 142 30 27 21!. 4 2lrl! Auguot.......... .... .. .. .... .... .. .. ...... 1 , 135 80 29 36.6 2 , eso September . . . . .... , .. , . .. . . . .. ..... , . .... , . 1,048 45 29 34.9 2, 080 

r-------r------+------~------r------

The period. , , ... , .. .•. . ........ ••.• . •.. o f-----f----+----+-----+---4-, 6_1_0 

OCtober 1939 ···· ·· ·· ··········· ·········· 1,H9 41 33 3'7.1 2,280 

llovembor . . . ..• ... , .... ..... •. · •.• . . · · · · · · · 1,117 45 35 37.2 2,220 

December .. . • . .••. . ... . ..... ..•... . . •..•. •• 2 ,001 348 37 ~.5 ~,9'70 

Janu&r)' 1940 ........ . . .... ...... ..... .... 1,271 4£ 38 41.0 2, 520 

February .. • . ... . . .. .... . . . ..••...... ••• .. o 1,888 124 38 65 .1 3,'740 

l'larcb .. . .. .. .. .. . . ... . ..•......• .. . ..•.••• 1,~89 70 31 44 .2 2 , '720 

Apru . .•.. ... .. .. ... ... •.. .... . . ......•.•• 2,452 976 36 81.7 4,860 

,.,. ..................... ... .. .. .. ... ...... 2,394 347 36 77.2 4 , 750 

J\l.n.eo • . .. .. . . ..•... . . . .........•.•• • .. . . • • 3 , 939 1,080 28 1~1 7,810 

JIJ.J.)' ...... . . ... . . . .... . .. .. . .. . .. . .. . . .... 292 1, 080 31 106 6 , 530 

Auguot .................... . ......... . ..... 1' 224 80 22 39.5 4~0 

September •. ... ........ .. ......... . .. ... ·· • 1,05~ 79 29 35.1 2,090 

Water y oar 1939-40 ·· ·········· ········· 23,149 1 , 080 22 63.2 45 ,920 
144 OUADAUJPE: RIVER BASI N 

Cibolo Creek near Falls Cl ty, Tex. 

Locati on.- Water -stage recorde r , lat. 29°01 ' , long . 97°56 ' , at br idge on State Highway 123, 9 miles upstream ! rom mouth and 5 .5 miles northeast or Falls Cl ty , Ka rnes County. Datum or gage ls 264.0 t eet above mean sea level, unadJusted . 

Drainage area .- 831 square miles. 

Records available .- November 1930 t o September 1941. 

Ave rage discharge.- 10 yeare, 124 second-t eet. 

Extremes.- Max imum discharge during year, 11,500 second-teet Nov . 5 and Apr. 28 , !rom 

rating curve extended above 6 , 000 second-teet; max imum gage height, 22.53 teet Nov. 5; mi nimum, 4 .9 second-teet: ct . 23. 

1930-41: Max imum discharge , 28 , 600 second-teet June 14 , 1935 (gage height , 32.0 t eet, present stte and datum, based on !loodmarks at site then In use ) , ! rom rating curve extended above 16, 000 second-teet; minimum, 4 .9 second-teet Aug. 27, 28, Oct . 23, 1940 . 

rlood In October 1913 reached a stage about 3 t eet highe r than that or June 14 , 1935. 

Remarks .- Records good except those above 6 , 000 seCOJid-!eet, whi ch are poor . No large ----arv8"re1 on above station . 

Diachara;e , in second-teet , water year October 1940 to S.pteaber 1941 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25. 

Oct . 

8 . 9 8.9 

8.9 

8 . 9 8 . 9 

8 . 9 

H 

ll 

e.~ 

e.~ 

e.~ 

7.8 

7. 6 7.6 

e.~ 

e.~ 

7.0 

8.5 

6. 5 6 . 5 

6.5 

6.0 

5.4 

5. 4 

11 

26 29 

27 45 28 24 

29 140 30 17 

31 1,~0 

Nov. 

2,120 

~17 

as 

44 6,370 

3,870 

186 

77 

5 0 

40 

44 

~1 

28 

27 

28 

24 

22 

22 

22 

22 

22 

1,560 

798 1, 260 

490 

200 

75 

44 

34 

29 

Dec . 

28 

24 

22 

2l 

2l 

2l 

~44 

495 

10 2 

44 

209 

285 

2 ,1 20 

24 0 2,4.60 

5 , 300 1 ,110 290 

~ 

1,420 

278 

111 

72 

58 

50 

Jan . 

34 

~ 

~1 

30 

0 

29 

29 

28 

28 

27 

27 

28 

28 

~94 

116 

78 

48 

36 

~0 

27 

27 

28 

25 

25 

24 

46 24 44 2,370 

4l 1,210 37 198 

~5 84 

~5 5 4 

Feb . 

528 2,290 

2 ,620 

·~ 234 

209 141 

:180 

198 

1~9 

gg 

70 

58 

49 

44 

42 

41 

~g 

~8 

37 

:16 

~7 

46 

8$ 

~1 

71 

50 

42 

Mar . 

~e 

~2 ~· ~2 

~1 

~1 

~8 

~e 

0 

~0 

28 

27 

27 

25 

25 

28 

:125 1,300 916 

289 

121 

7~ 

55 17~ 

404 

Apr . 

:16 

~2 

:11 ~· 27 

28 ~29 

275 

75 

47 

28 

~0 

~~ 

~15 

159 

77 5as 105 4,~0 

200 9,960 as 5 , 280 52 1,360 

4l 

5m 

678 5,420 

2,800 

1,450 

,,,20 

2,200 

522 

e 

me 

1 96 1 ,130 

388 

222 

179 

~2 

ll 2 

97 

87 

81 

g~ 

~55 

1~8 

122 

74 

88 

59 

~ 

148 

69 

58 

llonth Secondtoot.-da.ye llaxiaWI 

October .. . .... .... .... ..... . . .... ... .... . . . NoYeaber . . ..... .. ........ • ......... . .. . . . . . Oeoeaber .. . ... ... ..............•........... 

Calendar year 1~0 ..................... . 

2,188. 5 

16 , V37 

1 5 ,5V4. 

55,24.7 .6 

January ............ , ........ ... ............ 5,17 2 February . ................... • .. •.. .. . , . . . . . 8,178 

llarob. ...... . ......... . .................... 4., 774 Ap ril. 00 ....... 00 ... oo • ••• 00 00......... .... ~25 

11&7 . 0 0 0 0. 0 0 0 . 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0. 0. 0 0 0 0 0 0 0 0 0 0 22,422 Jun.e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . 9, 256 JUlJ .. . .......... , .. , ....... , .. , ........... 1,555 

Aucuat ............... . ..................... 1,031 

1,730 

5,370 

5 , 300 

6 ,530 

2, 370 

2,620 

1,390 

9,960 

5 ,420 

3,080 

mo 

137 

Juno 

M 

5 2 

70 176 

185 

7~ 

81 

M 

5 0 

5 2 

154 1, 070 

619 

213 

7:1 

1,820 

~. ooo 

260 

120 

as 

87 

60 

56 

50 

50 

51 

8~ 

249 

~eg 

144 

lllini•ua 

5,4 

22 

2l 

5 .4 

24 

36 

25 

27 

58 

50 

28 

m 

J uly Aug . S.pt . 

40 

~6 

~8 

37 

~6 

34 

~ 

2 

:12 

~1 

30 

~0 

~0 

~0 

29 

28 

lie an 

70.8 

5115 

50~ 

151 

167 

292 

154 

778 

1m 

~09 

50 . 2 

3 

m 

22 

m 

22 

22 

22 

2l 

20 

27 · 

28 

27 

m 

m 

24 

28 2,310 1, 700 

~·8 116 

57 

42 

~e 

~2 

30 

28 

27 

27 

27 

27 

Runott in acre-teet 

4,340 

~3,590 

30,Q30 

109,&00 

10,260 

16,220 

9,470 

46,260 

44,470 

18,360 

3,000 

2,040 

septellber ........................ 2,310 20 178 10,460 . . . ....... 1--_5..,;,_27_ 4_1-----'--+-- --+- -----11----'--

later year 194.0-4.1 .... . .. .. ..... . ... . ... 11&,706.6 9,960 5 . 4 ~17 22&,500 

18 (8 •••• ) 8,300 eeo .-t·t.; .Jan. 27 (9J40p.-J 
MISS1 0i'i RlV~R BASIN 145 

M!ss!on R!ver at Refugio, Tex. 

Location.- W!re-we!ght gage, la t. 28°17 ', long . 97°17 ', on br!dge on U. S . Highway 77, 

&Xl t eet uostream from M!ssour! Paclt!c Railroad br!dge and a quarte r or a m!le south- west o! Refug!o, Refugio County. Datum or gage !s 1 . 7 tee t above mean sea level, 

datum or 1929 . 

Drainage area .- 643 square m!les . 

Re cords available .- July 1939 to Septembe r 1941. 

~xtremes.- Maximum discharge dur! ng year, 10, 500 second-t eet May 4 (gage he!ght, 28.4 t ee t, rrom graph based on gage readings); m!n!mum observed . 0 . 7 second-toot Oc t. 7 . Q. 

1939-41: Maximum discharge, tnat or May 4, 1941; m!n!mum obse rved, that or Oct. 7, 

9, 1940 . Max!mum stage lalown , 32 .3 teet , !n August 1914, and May 17, 1938, from !nformat!on 

rurn!shed by local residents. 

Remarl<.s.- Re co rds r a !r. Gage read tw! ce dally. No l arge d!vers!on above station. 

Dieohar&e . in second-teet. wate r year October 19.0 to September 19U 

Day Oot . Nov . Dec . Jan . Feb . Mar. Apr . llay Juno Ju ly Aug . S.pt . 

1 1.2 2 ,180 40 18 13 14 12 958 a119 38 3 ( 21 2 1 .1 452 33 16 H 12 12 479 87 35 32 20 3 1 . 2 286 30 1 5 13 11 13 4, 680 73 32 30 18 4 1.1 162 36 H 12 9 .7 12 6 , 860 6( a30 29 18 5 1.2 56 35 13 13 9.2 11 2 , 4.W 63 29 ( 7 17 

6 .a 40 u 13 92 22 11 2 , 460 58 27 286 16 7 .7 36 237 12 183 55 12 1 ., 2 30 53 26 1,290 al4 8 .9 33 13 4 ll 167 ll l4 - 53 26 1 , 140 13 9 .a 30 8 7 ll 116 15 ll 266 53 26 429 12 10 .a 28 52 ll 90 s.e 10 207 52 25 a.l71 12 

ll .9 22 26 10 66 e.e 10 237 62 55 128 22 12 1.0 17 22 11 37 9 . 2 10 247 890 890 109 56 13 .9 17 23 10 17 9 .2 10 195 1 , 220 3 , 060 81 75 14 1 .0 17 170 10 15 9 .7 10 125 322 4, 330 60 • 60 15 .9 16 286 10 12 13 9.2 102 146 !5 ,110 44 30 

16 . 9 16 160 9 .9 11 19 10 87 93 827 40 25 17 1.0 16 64 10 9. 9 45 10 75 81 349 a35 24 18 1.0 16 5( 10 9.0 109 9.7 a72 74 179 31 33 19 .9 l4 224 10 7.7 160 10 72 69 135 30 42 20 1.0 l4 1 , 620 9 . 9 7.3 229 alO 75 62 116 28 62 

21 .9 l4 909 9.9 7. 9 154 10 292 53 99 27 a 56 22 1.0 14 315 9 .9 29 90 10 1, 890 50 81 25 49 23 1.0 14 195 10 579 63 9 .7 4, 710 48 69 24 33 24 1 .0 65 136 10 670 68 9.7 2 , 830 44 62 a23 21 25 40 !5 ,740 69 9. 9 291 177 11 796 44 54 22 20 

26 177 1 , 6 40 208 10 1 60 423 26 382 40 50 231 19 27 108 256 226 11 48 199 450 266 40 46 23 18 28 14 143 132 12 17 24 6,940 235 42 43 

~~I 17 29 7.6 78 99 11 18 6 , 830 1.,!510 40 41 16 30 ~420 50 42 11 15 2 , 530 343 40 38 2 1 15 31 670 40 11 11 a l 63 36 a20 

Month Second- Mu.iaua M1n1•ua lloan Runoff in 

root-days act re-teet 

October .. . ............. , .... ·· ··· ···· ···· 5 ,459.8 3 , 670 Q.7 1 76 10, 830 Noveaber .. . .. .............•. . . . . . . . . . . . . . 9 , 481 3 , 740 14 316 18 , 810 Deceabe r ..... . .. ......... .. ... .......... 5 ,742 1,620 22 185 -- ----- -- ~~~~ Calendar year 1940 .....••.•• . • . .•....... 29 , 507.1 3.,740 .7 80.6 58, 6:SO 

------- January . . .. .. ... . .. .. .... . . .. o • • ••••• •• •••• ~5o 5 18 9.9 11.3 695 February . . ... .. . . .. . .... .. • .. •... .... . .. . . . 2 , 696.8 670 ~ 96 . 3 5 , 350 March . .. . . . . . .... . , . o • •••••• • • o ••••• o • • • • • • 2 ,021.6 423 e.e 65. 2 4,0~0 

April ....... . ..•. .•. . . .......•. . • . ... . ..•.. 16,043.3 6,830 9 .2 535 31, 8 20 May .· . ... ..... .. .. . ... o • •• • • • •• •• •• o ••••• • • • 34 , 565 6 , 860 72 1,115 68,560 June . ..... ... . . . ..• . . . ... . ........ . . .... ... 4,135 1, 220 40 138 8 , 200 J uly .... . . . ..... ... . .... . ... . ... . .... . .. . . . 13,963 4., 330 2 5 450 27 .700 August ............. . .. . . . ... . ... ....... . ... 4,32'7 1, 290 20 140 8,580 Septe•ber . . .... . . .. ..... . . . .... . . . . . . . . . . . . 854 76 12 28.5 1,690 

Water year 19 40-41 ..... . ...... .... ... . .. gg 639 .0 6 860 . 7 7~ 197 600 

• No gage-height record J c1.1aoba.rge lntorpol.atod. 
146 NUECE:S RIVER BASIN 

Nueces R1 ver at Lap;una , Tex. 

Location .- Water-stage recorder, lat. 29°25 ' 45" ~ng . 99°59 • so•, hal! a mile downstream 

from Sycamore Creek and l mile northeast or na, Uvalde County. Datum or gage Is 1 , 119 . 72 teet above mean sea level, datum or 1929 . 

Dra1n!Y!e area.- 764 square miles . 

Records available.- October 1923 to September 1931. 

AVe !:!!:fie discharge .- 18 years, 160 second-teet. 

Extremes .- Maximum discharge during year, 1,060 second-feet May 3 (gage height , 4.53 teet); minimum, 32 second-teet Oct . 11, 15 , 19-24, 26-30. 1923-41: Maximum discharge, 222,000 second-teet July 13, 1939 (gage height, 26.40 teet), rr om rating curve extended above 40,000 SAcond-tee t on basis of on11 float measurement (110 , 000 second-teet ) and one slope-area measurement (213,000 second-f eet) ; minimum, 7.8 second- feet Nov. 3-15, 18, l934 . nood or June 1913 reached a stage or approximately 29 teet, based on the statement or local fes1dent that the stag exceeded that or the flood or Sept. 21, 1923 by 2 or 3 reet. flood or Sept. 21 , 19 , reached a stage or 26.5 teet (discharge , 226 , 000 second- feet , based on rating curve mentioned above). 

Re:;larks .- Records good except those above 400 second-teet, w~.lch are poor. All or part ----orrne flow of Nueces R1 ver and 1 ts tributaries Is lost when 1 t enters the E:dwa rds 

limestone In the Balcones fault zone which crosses basin Just no rth or Uval<le and 

downstream from the station. No diversion above station . 

Day Oct . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

October. 

November. 

December . 

35 

35 

35 

35 

35 

34 

35 

3< 

34 

33 

32 

33 

33 

33 

32 

33 

33 

33 

32 

32 

32 

32 

32 

3 2 

33 

32 

32 

3 2 

3 2 

32 

42 

Discharge, 

Nov . Dec . 

36 44 

35 44 

34 44 

34 .. 37 44 

36 44 

39 45 •o •• 41 45 

40 47 

39 55 39 70 39 78 40 71 

41 71 

42 68 

4 2 68 

43 68 

43 6? 43 65 

44 64 

43 63 

43 63 46 61 44 61 

44 61 44 60 44 58 44 58 44 58 

60 

Month 

Calendar year 1940 

January . February . Ma rch .. 

in second-teet. 

Jao . Feb . 

58 73 

58 68 

58 67 

58 67 

58 67 

58 68 58 64 00 70 58 67 

58 67 

58 67 

58 65 

58 65 58 64 

58 63 

58 61 57 61 5? 61 57 61 57 60 

57 60 57 61 

56 63 56 61 56 61 

55 61 56 60 55 60 

63 

52 

57 

April . . . .. .• . . . . . .. . . . •..• . . May . . ...... . . . . . a • ••• • • • •• •. • ••• ••• • • • • • • a· 

June .... . . ... .. . . . . a • • 

Ju ly ...... ... . . •. • • .. .. • . .• . .• . .• . • . . • .• •. August . . ... . ... . . . . 

September . . 

Water year 1940-41 

water year October 1940 

War. Apr . llay 

61 84 306 

61 84 382 

61 82 805 

60 78 611 

58 76 513 

61 75 459 

60 75 401 oe 73 3<e 58 71 310 

58 71 279 

58 73 256 

58 71 233 

57 71 215 57 71 201 57 ?5 lB!l 

56 76 176 

?3 71 162 

93 70 154 

104 68 145 

104 68 137 

95 67 137 

91 67 134 

87 68 134 

84 67 122 

82 65 115 

89 110 106 

89 358 100 

91 587 93 

91 506 87 89 367 82 

85 76 

34 , 298 805 

to September 1941 

June Jul y 

71 93 70 93 

68 91 102 91 

142 91 

137 89 134 87 109 07 

1 22 85 122 84 

1 22 101 122 151 

145 208 191 22'1 24 4 172 

229 184 

201 218 

178 26? 

151 326 142 208 

129 184 122 168 

117 156 112 148 106 140 

106 132 100 124 101 115 

97 110 95 104 

100 

Mean 

Aug . Sept. 

97 58 91 57 87 56 

85 55 

85 55 

85 53 

85 52 00 •• 1 51 64 

112 61 

97 70 

89 82 

85 85 eo 85 78 84 

75 87 73 110 71 120 73 lOB 75 108 

73 106 

71 95 70 97 68 95 67 93 

68 91 71 91 

64: 91 

63 91 61 91 61 

Runorr in acre-teet 

2, 050 2 ,430 

3 ,560 

52,820 

94 .o 68,040 

Peak a:l&charge. - Apr. 27 (6:30p.m.) 674 aec.-rt.; Ha y 3 (2 a. m.) 1 , 060 aec.-rt. 
NUECE:S RIVER BASIN 147 

Nueces River below Uvalde , Tex . 

Location .- Wate!"-Stege recorder, lat. 27°08', long . 99°54' , on Smyth Ranch , 4 miles up- stream !rom bridge on U. S. Highway 83, 9 mlles southwest or Uva l de, Uvalde County, and 15 mt les downstream !rom west Nueces River. Datum or gage ts 796.1 teet above mean sea level, datum o! 1929. Statt on !s 5 mi les downstream !rom station published as Nueces Rtver near Uvalde which was discontinued Apr. 30, 1939 . 

Drainage area.- 1 , 947 square m!les. 

Records available .- April 1939 to September 1941. 

Extremes.- 1939: Maximum gage height during pe riod Aprll to September, 19 .25 teet July 13 

(d lscharge not determined); m!n!mum, 8.8 second-tee t June 30 . 1939-40: Maximum discharge during water year, 4,990 second-teet Oct. 10 (gage 

height , 6.71 teet); m!n!mum, 11 second-teet Sept. 25 , 26 . 1940-41 : Maximum discharge during water year, 212 second-teet May 4 (gage height, 

3.42 teet); m!n!mum, 8 .0 second- teet Mar. 8. 

Maximum stage known, 40 .4 teet, !rom ! loodma rks, June 14, 1935 (discharge at rormer station, 5 miles upstream, 616,000 second-!eet, by slope-area method). 

Remarks .- Records good . Part or the !low o! Nueces R! ver enters the Edwards limestone· ---rrrthe Balcones !ault zone which crosses the bas!n just north 9! Uvalde . At low stages most or the headwater !low enters thts ! ormation . No dtvera ton. 

Dlaeharge , ln second-teet, 1939-41 

1939 

lln A cr. lin June July Au~ . Sect. O..v Anr. ~ ... June July Au•. Sect. 

1 - 14 14 10 36 26 16 12 15 12 578 33 26 2 - 14 14 10 36 26 17 12 15 12 310 32 32 3 - 14 18 10 37 26 18 13 14 12 208 33 31 4 - 14 14 10 68 26 19 14 14 12 153 32 26 5. 14 15 14 10 71 26 20 14 14 1 2 120 32 24 6 14 14 14 10 42 26 21 14 14 12 92 30 23 7 14 14 13 10 39 26 22 14 13 11 72 30 23 8 14 14 13 10 41 25 23 14 13 11 61 30 23 9 13 14 12 10 47 26 24 14 13 11 54 28 22 10 12 l4 12 10 37 26 25 14 22 11 4 8 28 22 11 11 14 12 10 36 27 26 14 14 11 44 27 21 12 12 14 14 17 34 30 27 15 14 11 42 27 21 13 13 16 J.4 21,500 33 32 28 16 14 11 39 27 21 

14 H 15 13 6,120 33 27 29 14 15 10 38 27 20 15 13 15 12 1,360 33 25 30 14 15 9 . 6 n 27 19 

31 - 15 - 41 27 -

1939-40 

Day Oot. Nov . Dec . Jan . Fob . War . Apr . llay June July Aug. Sept . 

1 20 62 36 28 24 20 17 15 14 22 15 16 

2 20 57 36 28 24 18 18 15 14 21 15 16 

3 20 52 36 28 31 19 17 14 14 20 15 16 

4 20 50 36 27 26 19 17 14 H 20 15 15 

5 20 48 34 27 23 19 20 14 14 19 15 14 

6 20 47 34 28 22 19 52 14 14 19 15 14 

7 20 46 34 27 22 18 28 15 14 1 9 14 14 

8 20 H 33 27 22 1 8 23 14 13 19 14 14 

9 20 43 33 26 27 19 21 20 15 19 14 14 

10 2,4 30 43 33 26 25 19 20 16 15 18 14 14 

11 1,480 52 32 26 23 20 18 15 14 18 14 14 

12 443 46 32 26 23 19 16 14 15 18 14 14 

13 218 44 31 26 21 18 16 14 17 18 15 14 

14 153 43 31 24 22 18 17 14 18 18 15 14 

15 118 43 31 25 22 1 8 17 14 20 18 15 14 

16 92 43 31 25 22 18 17 14 18 21 15 14 

17 75 4 2 31 25 18 18 16 16 17 20 15 13 

18 65 4 2 31 24 20 18 14 H 17 19 16 13 

19 58 41 30 24 20 17 15 54 18 19 15 14 

20 54 41 28 24 20 17 15 31 17 18 14 14 

21 50 41 28 25 20 1 8 15 21 17 18 14 H 

22 47 39 30 26 21 18 15 19 17 17 14 14 

23 46 39 27 25 21 18 15 69 17 17 14 14 

24 44 39 27 26 20 18 15 26 64 16 14 14 

25 .. 39 34 25 20 20 16 19 46 16 14 1 2 

26 42 38 31 25 21 19 17 17 23 16 H 1 2 

27 42 38 30 25 21 19 17 16 21 1 6 H 12 

28 4 2 38 28 24 20 19 18 15 21 15 14 1 2 

29 80 39 28 24 20 19 17 14 38 15 15 12 

30 88 41 27 24 - 19 16 14 28 15 28 12 

31 7 4 - 27 23 - 19 - 14 - 15 17 -
148. NUECES RIVER BASIN 

Dlach&rge,. in aecond.-teet, ot Hueoea River below Uvalde, Tex., 1939-41--Contlnued 

1940-41 

Day Oot. Nov. Dec . Jan. Feb. War. Apr. llo.y June 

1 12 11 10 1~ 22 11 12 24 55 

2 12 10 10 15 15 11 12 M 54 

3 12 10 10 15 H 10 11 41 59 

4 12 11 11 1~ H 10 11 159 51 

5 12 H 11 1~ 14 10 11 205 52 

6 12 11 11 1~ 14 11 11 191 50 

7 14 15 11 1~ 1~ e. a 10 1eo 50 

8 1~ 1~ 11 15 14 a. a 11 166 50 

9 12 1~ 11 15 1~ 8.8 11 155 48 

10 12 1~ 11 12 1~ 8.8 11 1~8 47 

11 12 11 31 12 12 8.8 12 128 46 

12 ~ 11 21 12 12 9.6 15 ll4 .. 13 1~ 10 20 12 11 8 .8 1~ 107 45 

14 12 10 20 11 11 8.8 1~ 102 45 

15 11 10 23 11 11 8 .8 25 98 50 

16 12 10 20 10 11 9 .6 23 92 46 

17 12 10 19 10 10 40 18 86 4~ 

18 12 10 18 10 10 38 19 eo .. 19 12 10 18 10 10 22 17 eo 48 

20 11 10 17 11 10 19 17 77 51 

21 11 10 16 11 10 1 7 17 100 51 

22 11 10 16 11 12 17 17 86 so 23 11 10 15 11 1~ 16 18 eo 48 24 12 11 15 11 12 15 17 eo 48 25 12 10 14 11 12 15 17 75 48 

26 12 10 11 11 12 16 M 70 47 27 12 10 12 1~ 12 H 28 67 46 28 1~ 10 13 13 11 H 26 62 46 29 12 10 1~ 11 - 14 26 61 44 30 12 10 13 11 - 14 24 59 .. 31 26 - 13 14 - 14 - 58 -

"onthly d1acharge , 1n second-teet, 1939-41 

Honth 

April 5-30 , 1939 ........................ . 

11&7· • • • • ••• • •• • ••••••••••• • • • ••••••••••••• .rune •.. ... . ... .. •.. . .................. . ..• =7· . •. • ••.•.••••• . ..• . .•••...•.•..•.••.. .l.uguot .. .. ... .. .... ... ..... ..... ........ . . September .. . .......................... , ..• 

Secondtoot-da,.a 

3Sl! 

449 

371.6 31,048 

1,09~ 

754 

16 

22 

18 21,500 71 

32 

Minimum 

11 

1~ 

9.6 

10 

27 

19 

July Aug . Sept . 

4~ 28 24 42 28 24 

41 28 24 

59 27 24 ~g 27 24 

~9 28 24 

~8 ~0 24 

58 ~2 23 

~8 ~~ 24 

~8 50 24 

55 28 28 42 28 27 

41 28 24 41 28 23 ~9 28 23 

~g 28 23 

39 28 31 38 27 26 37 27 25 

~7 27 25 

~7 27 24 

37 26 23 

~4 26 23 

5~ 26 2: 

~~ 25 25 

3~ 25 23 

~ 25 23 

~1 25 25 ~1 25 23 

~1 25 23 

~1 25 -

Moan Run- ott 1n 

acre-teet 

13 . 5 6~8 

u .s 891 1 2 .4 737 1,002 61,590 ~5 3 2,170 25 . 1 1,&00 

'l'ho period ••••••••.•••• . • • ••••••.•.•• • • t---+---+---+---4---- 87,690 

October 1939 ........................ .. .. . November ..... . • .. .. .. . . . .. . . . , .•. , .....•.• December • .. ..• ••• . ..• . ... •.. .• . ..•.•..•••• 

Calendar year 

5,965 

1,320 

9'10 

Janu&ry 1940 • . • . . . . • • . . • • . . . . . . . • • . • . • . • • 793 Po b ru.a.1"7 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • &41 Karch................... . ..... . ........... 575 

AprU................ . .. ... . .. . .. . ..... .. . 555 Kay......... ............. . ....... ......... 595 JUno.................. .... ....... ......... 604 =7·. . . ...... . • . • • . • . . • . . • • • • . . . . . . • . . • • • 559 Auguat...... ... ................. .. .. . .. . .. 466 

September............................... . . 413 

2,4:SO 

62 

36 

28 

~1 

20 

52 

69 

64 

22 

28 

16 

20 

38 

27 

23 

18 

17 

14 

14 

1~ 

15 

14 

12 

192 11, 830 H.O 2, 820 

~1.3 l,G20 

-- --- 25,8 i , 570 22.1 1,270 18.5 1 , 140 18.5 1,100 19. 2 1,180 20. 1 1 , 200 18. 0 1 , 110 16.0 924 13 . 8 819 

Water 12 36 . 8 26,680 year 19:S9-4 0 . . .... ...... .. . . . .... f---:-1-:-3-,4-:-5:-6-+--2-,4-~-0+----I---- -+--~:.._ 

October l 940 .... ..... . . .. ..... ....... . .. . lfovember ...... .. ... .... . .............. . .. . Decem.'ber .... . .... . ........ . .... . ........ . • 

Calendar year 1940 . . . . .. ......... . ... . .... 

387 

322 

486 

----

6,~75 

26 

14 

31 

89 

JOll\10."7 1941 . . . . . . . . . . . . • • . . • • . • • • • • • • • • • 366 14 Pobru&"7·.... . .................. . ... . .... . 3 48 22 Karch .......... .... ... . .... .. ....... . ..• , • 4:S7 , 6 40 ApriL . • • . . . • • . . . . • • • • . . . . . • . • • • • • • • • • • • • • 605 34 Kay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3' 055 205 June................................. . .... 1,456 81 Jul7·. .... ... ......................... .... 1 , 167 55 Auguot................... ...... ......... . . 848 33 

11 

10 

10 

10 

10 

10 

e. e 10 

24 

43 

31 

25 

23 

12.5 788 10.7 639 15.0 922 

---1-- - --- - 17 . 4 _:2J~o - 11 . 8 726 12.4 690 14.1 868 16.8 1,000 98. 5 6 , 060 

48.6 2,890 

37 . 6 2,:Sl0 

27.4 1,6eo September.... . . . ... . .. . .......... .. .. . .... 725 :Sl 24 . 2 1,44: 0 

~------~-----+------4-------~--~- Water year 1940-41 . . . .. .. . .. .. .. .. .. . .. 10 , 081 . 6 205 e. a 27.6 19,9GO 
NUECES RIVER BASIN 149 

Nueces River near Asherton , Tex. 

Location.- Wate!'-stage recorder, lat. 28°30 ', long. 99°42 ' , at bridge on AshertonBrundage highway , 1.2 mlles downstream !rom El More Creek and 5.5 mlles northeast or Asherton, D!mmit County. Datum or gage is 470.9 teet above mean sea level, datum or 1929. 

Drainage area.- 4,082 square miles. 

Records available.- October 1939 to September 1941. 

Extremes.- Maximum discharge during year, 3,140 second-teet Feb. 4 (gage height, 19 .07 

f eet); no now at times. 

1939-41: Maximum discharge, 5,200 second-teet Apr. 7, 1940 (gage height, 24.65 

teet); no now at tlmes . Maximum staga known, 32 teet June 17, 1935, according to in!onnation furnished by 

local residents. 

Remarks.- Records good . Part or the now or the Nueces River and its tributaries enters --u;e-Edwards limestone in the Balcones fault zone which cr osses the basin Just north or Uvalde. At low stages most or the headwater now enters this ronnation. now partly regulated by several small reservoirs above station. About 12,000 acres irrigated !rom river or Jointly !rom wells and river above station. 

Discharge , in second-teet. water year October 1940 to September 1941 

Da.l Oct. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

:M 

25 

26 

27 

28 

29 

30 

31 

Nov . Dec . 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

4.2 

1.5 

. & 

.3 

5.0 

3.5 

1.0 

0 

0 

0 

Month 

.6 

.3 

.2 

. 2 

.1 

.1 

Jan . Feb . 

0 1,290 

0 2,060 0 2 , 940 

0 2,970 

0 1,850 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

5?1 

2M 

148 

100 

70 

49 

37 

28 

19 

14 

8.4 

5.2 

3 .6 

2. 5 1.9 

1.5 

1.3 

1.8 

1.5 

1.2 

18 

203 1,230 

1,670 

.9 

. 8 

.7 

October .. .. . . . • .... . ... ... ...... . . . ........ November .. . . .............• ... ....• . ......•. 

December ... . .......... . ..•..•.. . .... • ...... 

Calendar year 1940 ........... . ... • ... 

January .... .......... . . . ....... . .... . . . ... . February ...... . . . . . . ........ . .... . . ... .. .. . lllaroh . .... . ..... . .. .... . . •.... .. ... . •.. . . .. April. .... . . . . • ... . ...... •..•. . .. . . . • . . . ... llay . .... . . . •. . •.. . . .. .. .. •.. . ....•..•.... . . 

June . .... ... . . ................ . . . ......... . July ..... . ....•.. ... . . .. . •... . • ..•..•.... .. August ............. .. . •• . • ..• . .• . • . . ••.. Septe11ber ..... . ... . ................ . ... . 

Ma r . 

0.7 

.6 

.8 

1.1 

1.2 

1.1 

.9 

.7 

.6 

.5 

.4 

.3 

.3 

.2 

.2 

.2 

.2 

.3 

.3 

. 2 

. 2 

.3 

.5 

.7 

2.4 

Apr . 

6.9 1,660 

8 . 9 737 6.3 1,270 4.8 1 , 740 3.4 1, 260 

2.1 

1.4 

1.0 

0 

0 

0 

0 

0 

0 

0 

0 

10 

.6 

.3 

. 2 

.2 

.2 

. 2 

.1 

.1 

. 1 

1 , 110 

793 

480 

303 

200 

148 

114 

88 

71 

so 

52 

45 

H 

49 

128 

222 

303 

371 

333 

241 

3 . 7 2 .8 

2.2 

1.9 

1.6 

1.4 

198 

l,HO 

l, 780 

1,850 

166 

114 

83 

63 

50 

4 2 

Seoondroot-da;re 

0 

0 

17.6 

45,065.4 

3,121 

12 , 441.3 

28 . 5 5,062.8 

,3~5 

645.3 

17 .o 49.7 2,464.5 

0 

0 

5.0 

4,390 

1,670 

2,970 3.7 1,'160 

1, '140 

73 

S.9 

19 1,250 

June 

34 

26 

20 

19 

23 

36 

73 

73 

59 

46 

34 

28 

20 

15 

11 

9 

6.3 

4.0 

2.8 

1.8 

1.3 

1.2 

1.0 

.8 

.7 

.6 

.. .3 

.2 

.1 

0 

0 

0 

0 

0 

• 7 

• 2 

0 

41 .1 

0 

0 

0 

July 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

4.8 

8.9 

2.8 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

.6 

.2 

.1 

Aug . 

0 

0 

0 

0 

0 

18 

4.8 

19 

4.2 

1.4 

1.3 

.6 

.3 

.1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Sept . 

0 

0 

0 

0 

0 

0 

0 

0 

18 

719 

1,251 

298 

eo 

27 

9.3 

12 

37 

6.2 

2.8 

1.3 

1.4 

1.4 

1.0 

0 

.9 

.5 

.3 

. 2 

.1 

.1 

lie an Rw>orr 1D 

aore-tHt 

0 

0 

. 57 

123 

101 

... .92 169 

398 

1S.2 .55 

1.60 

82.2 

0 

0 

35 

89,400 

e,l90 

24,680 57 

10,040 

36,4'70 

1,080 34 

99 4,8QO 

Wate r year 1Q40-4l . . . . . . . . . . . . . . . . . . 36,082.7 2,970 98 .9 '11,580 

Peak dlac.harge .- Peb. 4 (4 •·•·) 3,140 aeo.-rt. ; J'lay 1 (3 a.m.) 1.960 aeo.-rt. J Sept. ll (1 1:50 a.a.) 

1.746 eeo .-ft. 
150 NUECE:S RIVER BASIN 

NUeces RIver at Cotulla, Tex. 

Location.- \.lire-we ight gage, lat. 28°26', long. 99°16 ', at bridge on U. S. Highway 61 at Cotulla, La Salle County, a third ot a mlle ups tream trcm bridge or Inte rnationalGreat Northern Railroad. Datum or gage Is 366.06 teet above mean sea level, datum ot 1929. 

Drainage area.- 5,260 sQuare miles . 

Records available.- October 1923 to September 1941. Jul y 1915 to June 1916 at sl te 4 

mlies upstream. Gage-height records collected In this vi ci nity 1914-17 and s ince 1922 are contained In reports ot u. s. wea ther Bureau. 

Average discharge.- 16 years, 335 second-teet . 

Extremes.- Maximum discharge observed during year, 4,220 second-teet May 2 (gage height, 13.96 teet ) ; no now Oct. 30, 31, Jan. 25 . 1923--41: Maximum discharge, 82,600 second-t eet June 16, 1935 (gage height, 32.4 

teet, trcm nooomarks) , by slope-area method; no now at times. 

Remarks .- Reco rds fair. Part ot the now or NUeces River and Its tributari es enters the ~rds limestone In the Bel cones raul t zone whl ch cresses the bas 1 n just north or Uvalde. At low stages most or the headwater now enters this formation. Most ·or low 0 now Is diverted above station by pumpi ng . Low now partly regulated by small storage rese rvoirs a1;>ove station . Gage read once dally . 

Cooperation.- Gage-height record furn ished by U. S. Weather Bureau . 

Discharge , in second-feet. water year October 1940 to September 1941 

08,) Oct. Nov . Dec. Jan . Feb . Wa r. Apr . M8,)' June July Aug . Sept . 

l o.s 0 . 1 o.6 0.4 633 2.4 1.9 3 , 420 64 1 . 2 0.3 0.2 

2 .8 .2 .6 .4 1,120 2 .4 1.0 4,080 38 .9 .2 .l 

3 .8 . 4 .6 .3 1 ,360 2 . 8 1.3 3 , 660 32 .6 . 2 . 2 

4 .a .6 .6 . 3 1,840 1.7 1.2 2 , 980 30 .3 .2 . l 

5 .s .6 . 7 . 2 3 , 420 1 . 6 .6 2,420 32 .3 .2 .l 

6 .8 .. .e .. 3 , 060 1.4 .5 2 , 2<t0 47 .3 . 3 ol 

7 .8 . 6 l.l . 2 2 , 000 1.9 1.0 2,420 76 .4 .. ol 

8 .8 . 6 1.0 . 3 1 , 480 2.4 .7 ~.160 124 .2 .4 .l 

9 .6 .6 . 8 .3 562 1.7 1.0 1,580 119 .2 . 4 .1 

10 .6 .6 . 6 . 2 229 1.4 . 6 1,090 96 . 4 . 3 . l 

ll .4 .. .6 .2 136 1.6 . 6 471 82 32 .3 1.0 

12 .3 .. .. . 3 102 1.6 .6 272 155 84 .2 368 

13 .4 .4 .. .. 76 2 . 0 .6 186 44 16 . 2 1 , 000 

14 .4 .4 .. . 4 47 5 .1 . 6 133 42 6 . 1 .2 896 

15 .. .4 . 4 .. 38 4.5 .6 100 36 1.9 .2 228 

16 .3 .. .4 . 4 30 3 . 1 .6 75 66 39 .2 91 

17 .3 . 3 .. . 4 30 3 . 9 . 6 49 26 103 .2 76 

18 .3 .4 . 5 . 3 22 12 . 6 43 ll 17 .2 83 

19 .3 . 5 . 5 .3 l4 9.7 .7 52 6 .4 7 . 9 . 2 57 

20 .2 . 4 . 5 . 3 13 1.7 .9 45 5 . 8 2.8 .1 46 

21 . 3 .4 .s .3 14 1.9 . 9 66 4.5 1.7 . 1 41 

22 .3 .. .6 .2 11 ~.7 1.3 126 3.9 1 . 2 . l 32 

23 . 3 .3 .. .1 a . 8 1.7 1.3 224 2 . 8 1.3 .1 23 

24 .. .6 .4 . 1 12 2 .0 1.0 314 2 . 4 1.2 .2 19 

25 . 4 .6 . 3 . 1 8 . 8 7.0 3 . 1 385 1.9 1 . 6 . 2 15 

26 .3 .5 . 2 .1 5.8 3.9 36 367 1.9 . 9 . 2 13 

27 .2 . 5 . 2 .4 3 . 9 2.8 151 289 1 . 6 . 6 .l 13 

28 .2 .5 . 3 1.9 3.5 1.3 1,150 193 1.4 . 4 . 1 5.1 

29 .2 .6 . 4 . 3 . 7 1 , 080 146 1.2 .4 . 1 2.8 

30 0 .6 .4 .7 1.0 1,800 93 1.2 .4 . 1 2 . 0 

31 0 .5 2 . 3 3.9 7l .4 . 2 

Month Second- Max imum Minimum Mean Runoff in toot-days acre-feet 

Ootober ..... . . ........... ...... 13 . 5 o.8 0 0.44 27 

Nove•ber .......... .. . .. . . ......... . ....... , 13. 6 . 6 .1 . 45 27 

Oeoeaber .. . ........ . ..... ..... ... .......... 16.2 1 . 1 . 2 . 52 32 

-- ----- Calendar year 19-tO · · · ·· .............. ... . 88,347 .4 -5 , 240 0 241 - 1"~5!2~ ----- -- - ------ January . ....... . .... . ... . .. ... . ....... 12.7 2 .3 .1 .41 25 February ... . . . . . . . . . . . . . . .. ...... ......... . 16 , :579 . 8 :5 , 420 3.5 685 32,490 March . ..... . ... .. . . ...... . . .. . . ... .... ..... 92 . 8 12 .7 2.99 184 April .......• . .• . ... ... •. . • . • •. . . ....••.•.. 4.,240 . 8 1,800 .s 141 8 ,410 Jlay .. 0 0. 0 0 0 0 .. 0 .. 0 0 0 0 .. 0 0 .. 0 0 0 0 0 0 .. 0 0. 0 .... 29., 750 4,080 43 960 59,010 J une . . ....... . ...... . . .. .. .... . o • • • o •• •••• • 1,1:52 . 0 155 1 . 2 37.7 2,250 July ..... .... . ............... . . . ... . .. . . . .. 323. 5 103 .2 10.4 642 August .... .. .. .. ..... .... . • o ••• • •• •••••• ••• . 6 . 4 .4 .1 . 21 13 Septe•be r . ...... .................... ... :5 , 08:5 .1 1,000 .1 103 6 , 120 

Water year 1940-41 .... ........... ... 55 , 064.4 4,080 0 151 109 , 200 
NUECES RIVER BABIN 151 

Nueces R1 ver near Three Rl vera, Tex . 

Location.- Wa ter-stage r ecorder, lat. 28°26'10', long . 98°11'10', 100 fe et downstream 

from San Antonio , Uvalde & Oulf (Mlssourl Pacltlc) Railroad bri dge , half a mile down- stream from Frio Rive r, and 2 miles southeast or town or Three Rivers, Live Oak County. Datum or gage Is 101 .16 fe et above mean sea level , datum of 1929 . 

Drainage area.- 15, 600 square miles. 

Records available .- J uly 1915 to September 1941. Gage-he ight records collected In this 

vi cinity s ince 1922 a r e contained In r eports or U. S. Weathe r Bureau . 

Average discharge.- 24 years (1915-18, 1920-41), 821 second-feet. 

Extr emes.- Maximum discharge during year, 34 ,400 second-teet Sept . 19 (gage height, 41.22 reet); minimum, 6 .0 second-teet Oct . 3 , 4 . 1915-41: Maximum discharge observed, 85, 000 second-fe et Sept. 18, 1919 (gage he ight, 46.0 teet), from rating curve extended above 55 ,000 second-feet; no flow at times . 

Remarks .- Re cords good. Part of the now of the Nueces ruver and Its tributaries enters --me-Edwards limestone In the Balcones fault zone which crosses the basin just north of 

Uvalde. At low stages most of the headwater now enters this formation. About 5, 000 acres from river and about 12,000 acres jointly from wells and river Irrigated above 

station. 

Discharge . in second-teet, water year October 1940 t o September 1941 

Da~ .- Oct. Nov . Dec. Jao . Feb . War . Apr . Way June July Aug . Sepl. 

1 8 .4 1,980 41 76 806 9~ 429 17 , 700 970 1 , 660 ~ 20 

2 7 .4 :5,0?0 ~ 67 1,470 81 W4 10 , 000 460 1 , 660 7 18 

3 6 .4 1,350 ~7 60 2,450 73 320 11,600 344 8~0 34 16 

4 6 . 2 ~10 ~6 66 2~0 69 ~12 21 , 200 1,370 344 ~~ u 5 6 . 8 22~ 34 M 1,0~0 65 268 28 , :100 ~.8w ~6 ~0 l~ 

6 6.8 1 , 660 ~4 51 2,260 6~ 166 24 , 400 3,090 u s 46 l~ 

7 66 3,280 34 49 5 , 170 57 119 20 , 000 822 112 257 26 

8 1~9 2 ,780 ~6 4S 6 ,470 66 168 18,300 1 , 090 33 1 , 640 21 

9 1&2 434 91 46 4,140 67 126 15 , 900 1,570 25 1 , 160 27 

10 66 ~24 69 46 2 , 020 69 96 12 , 300 2 , 920 22 169 52 

ll ~ ~34 

·~ 4~ 1,690 51 76 9 , 180 6,~20 1", 080 70 34 

12 22 24S 4.1 42 1 , 720 60 65 7,020 5 , 750 4,~oo 60 96 

13 l4 19~ 42 42 1 , 870 46 69 5 , 320 6 , 030 7 , 440 ~72 :50 

14 1 2 uo 39 41 2 , 080 4~ 54 4,240. 4, 060 1~0 778 22 

15 77 104 207 4~ 2 , 260 4~ 52 3 , 560 2 , 640 6,070 661 ~07 

16 124 82 1,180 52 962 ·~ 60 3 , 100 3,130 ~,360 2~0 296 

17 6~ 69 2 ,230 41 ~72 H 48 2 , 000 4 , 280 2 , 060 142 4 , 600 

18 M 6~ 987 37 286 250 112 840 4, 580 1 ,4 60 102 17 ,200 

19 178 57 408 ' 7 2~0 1 , 200 246 665 4,ll0 768 76 32 , 600 

20 125 61 2 , 9 30 ~6 19~ 755 174 681 2 ,110 ·~ ~ 26, 900 

21 81 48 :5,820 36 166 420 ~3 1,640 ,~4 0 268 52 14.,800 

22 M 61 2 ,400 36 161 22S 117 :5 , 140 904 17 4 48 7 , 4:50 

23 9 206 826 ~6 165 684 116 5 , 770 4S6 119 44 :5,790 

24 ~2 223 468 ~5 184 980 13~ 4,460 605 89 9 .ooo 

25 180 526 ~6 ~5 205 1 ,160 119 3 , :560 815 7~ 34 1,140 

26 1,680 220 422 M 169 9~6 1 , 670 1 , 860 924 64 ~l Hl 

27 1 , 570 67 247 ~4 l~~ 472 7 , 560 1 ,340 924 51 28 794 

28 557 M 1SO 897 108 315 15, 600 1 , 260 1 ,150 5 4 27 484 

29 835 46 14 2 :5,400 - 268 2:5 , :500 1 , 880 1 ,460 48 28 334 

30 924 42 110 l , S20 - 199 24 , 400 1 , 660 1 ,630 44 26 ~15 

31 1,090 - 9 1 1,600 - 240 - 2 ,5:50 - 41 22 -

Month Second- Wax.imum M1n1mu.. lloao Runott in 

root-days aore-teet 

Oc tober .... ·· ····· ···· ······· ·•·· · · · ······· 8 , 202 . 0 1,680 6 . 2 265 16,270 

November ........................... . ....... 18,14-4 :5 , 260 42 605 :55 , 990 

December ........ , .. ................. ....... 17 , 629 :5,820 34 569 :s-4 , 970 

-- ----- ------ ------ ------ --- - -- Calendar year 1940 ......• . .•............ 4ta,326. 8 19 , 000 6 .2 1, 225 889 ~00 

------- --- - ------ - - --- - ----- - January . ............ . ... . ... . .... . . . ....... 8 , 029 3 , 400 ~· 288 17 , 71 0 

February ............ . . ... ..... , .. . ......... 39 , 999 6 ,470 108 1 ,429 79.,340 

March . . ........... . . . .. . ......... 0 •• • ••••• • 9 , 089 1 , 200 43 29~ 18 ,030 

Apri l ............. . •. . • . . ... . .... 0 ••••••••• 76, 681 24 , 400 48 55~ 151 ,900 

llay . ........ . .•..•. •. .••. ... . . . . . •..• . . . .. . 245, 106 28 , 300 681 7 , 907 486 , 200 

June . ....... ........ ... ............ .. . .. 68 , 814 6 , :520 344 2 , 294 136, 500 

July . •.•.•...•••. . ••. . , ..•. ········ ·· ····· · 42 , 210 9 ,130 22 1 ,362 83 , 720 

August . ... . . . ... . . . .. ·· ··· · . . . . . . . . . . . . . . .. 6 , 366 1 , 640 22 205 12 , 630 

September ......... . . . .. . . . .. ... . . .... . .... 114 ,731 32 , 600 13 3 , 824 227 , 600 

Water year 1940-41 . ... ... ..... .......... 656 ,800 .0 32 , 600 6 . 2 l , 797 1,:501 , 000 

Peak c11aoha.rs;e.- Apr . w ~ ..... ) 25, 500 see .-t'to; Hay 5 (l p . m.) 28 , 800 aec . -rt . ; J\lly 14 (6 ..... ) 

9,970 aec . - t t. ; Sept .. 19 (5 p.m .. ) 34,400 aec . -rt. 
152 NUECES RIVER BASIN 

Nueces River near Mathie, Te.xab 

Location.- water-stage recorder, lat. 97°52 ', long. 28•o2•, at bridge on u. s. Highway 96, 

200 tee t downstream !rom bridge ot Texas & New Orleans Railroad, 0. 6 mile downstream !.rom Lake Corpus Christ! Dam, and 4 miles southwest or Ma thie, San Patri c io County. 

Datum or gage Is 27 .50 reet above mean sea level, unadjusted. 

Oral nage area .- 16,660 square miles . 

Records available.- August 1939 to September 1941. 

E:xtremes.- Maximum discharge during year, 29,600 second-teet May 3 (gage height, 32 . 04 rest); mlnlmum, 19 second-teet Mar. 15-17 (regulated); mlnlmum dally , 19 second-teet 

Mar. 15-17 . ' 1939-41: Maximum discharge , that or May 3 , 1941; mlnlmum, 3 . 7 second-teet (regulated) Aug. 15, 1940; m!nlmum dally , 6 . 6 second-feet Aug . 15, 1940. Maxtmum stage known, 36.0 rest June 16, 1935, from noodmark at railroad bridge , 200 rest upstream (discharge , 44 , 000 second-teet, computed now ove r Lake Corpus Christl 

Dam) . 

Remarks .- Records good x~ept those tor period or no gage-height record and t hose below 

----roBecond-reet, whi ch are poor. Flow partlY regulated by Lake Corpus Christl (capac! ty at spillway crest, 54,000 acre-teet, revised, when dam was completed ln 1930; capac! ty 

In June 1942 at spillway crest, 43,400 acre-feet). The revised figure ot ori ginal capacity and the present usable capac! ty are based on a detailed survey by U. S. Boll 

Conservation Servi ce In 1942. Part or the now or the Nlleces River and Its t ributari es enters ~e Edwards limestone ln the Balcones fault zone whi ch c rosses the basin just north or Uvalde. At low stages most or the headwater now enters this forma t i on . About 5, 000 acres Irrigated trom ri ver and about 12,000 acres jo intly !rom river and 

wells above station. 

Discharce. in second-teet, water year October 1940 to September 1941 

OftJI Oct . Nov . Deo . Jan . Feb . Mar. Apr . May June July Aug . Sept . 

1 ~8 >,MO} M 1,5].0 165 244 20, 200 2,000 1,260 2l.6 lll 

2 ~8 1,510 ~2 1,410 184 2~7 23 , 900 l. ~80 ~50 209 109 

3 ~6 1 , 840 ~1 1,~60 182 ~7 21 ,400 S77 ~50 209 96 

4 ~· 1,640 ~0 1,610 180 250 18,600 2~ 957 209 67 

5 M 1,430 a90 29 1,410 159 2ZO 15,800 1 , 6&0 554 209 58 

6 M 1,180 28 1,380 80 2~0 1S,900 2,480 ~57 202 52 

7 M 1,700 27 1,870 50 ~7 24,600 2 ,720 244 202 52 

8 M 1 ,730 26 

~::~ 72 2~0 26,&00 1 ,380 188 216 • 52 

9 50 1 , 960 87 26 lH 2~0 22,200 1,1-tO 215 272 51 

10 ~0 1,700 47 25 4,950 ll2 ll.8 10,200 1,340 320 296 50 

11 ~0 1,700 22 26 2,990 109 22 16 , 800 2 , 7:SO ~49 504 4S 

12 50 1,400 22 25 2,230 107 22 14 , 000 5,450 1,800 265 48 

13 29 2~7 22 25 2,180 106 22 10,500 6 , 080 ~.900 258 48 

14 29 216 22 25 2,130 89 22 6,970 5 ,320 6, 250 251 48 

15 28 2~ ~5 2,100 20 22 4,880 4,260 8,390 251 48 

16 29 22 2& 2,100 19 22 3,720 ~.ooo 8 , 060 244 48 

17 29 22 25 1 ,980 19 22 3,190 2 , 890 4,840 244 180 

18 29 610 26 1,120 19 20 2,~20 3 , 620 2,410 7 865 

19 29 1,110 24 22~ 20 20 2,0'70 4,110 1,620 224 5 , 300 

20 29 1,110 24 202 ~2~ 20 1,540 880 928 161 12, 800 

21 29 1,700 24 195 692 : 3,810 2,610 57]. 146 22 , 700 

22 29 a2~ 2,830 2~ 188 ~ 4,680 2 ,070 ~78 131 27,400 

23 29 2,310 22 182 22~ 20 7,870 1 , 470 281 120 21 , 800 

24 29 ,~60 22 177 22~ 21 8 ,100 885 216 116 10, 200 

25 528 1,060 22 173 509 21 5,990 652 232 ll.4 4,100 

26 1,140 1 ,260 22 172 878 4ll 3 , 84.0 7M ~54 112 2 , 060 

27 1,140 ~00 22 189 1 ,050 2 ,110 

~:~?2 790 ~4 5 112 1 ,020 

28 1,250 952 22 186 1 ,060 ~o? 790 295 112 485 

29 1,800 Z68 167 1,050 11 'ioc 1,640 877 218 112 ~76 

30 1 , 290 198 1,020 594 15, 1 1,~~ 1,110 2].6 112 354 

31 1,730 ~6 1,640 244 1,7 216 111 

Month Second- llaxl.aUII Miniaum Mean Ruoott 1n toot.-d.Qa aore-feet 

October ...... . . . . . ....... . .. . . . •• . • . .• ... .. 9 ,400 1,730 28 ~0~ 18,840 

Noveaber ...... .. ..... . . . . . . ... . ... .. . . ..... 23,313 1 ,980 22 777 46,240 

Deceaber ......... . .. . ... .. . . . .. . • .. .. . ..... 17,233 2,8~0 558 M,lBO 

... ------ Calendar year 1940 ... . . . ... ... . . . ... . . . . 46&,812 . 8 18,400 6.8 1,273 923,800 

------- January . . . · ........... . .......... . .... . . . . . . . 3,454 1,64.0 22 111 6,860 

Febru.ary . ...... .... , ...•............... . . . . 43,51'7 6 , 670 166 1 , 554 86,310 

llaroh . ........ . ... ....... ........... . ; . . . .. 8 , 925 1 , 050 19 288 17 , 700 

April ............•..•..•....... . ..•. . • . .... 39,640 15,100 20 1,321 78,620 

!lay . .............. . ... ............... . .. . .. 325,'820 27,400 1 , 540 10,500 845,900 

June ............. . ..•. . . . . ..... • .. • ........ 69,396 6,060 652 2 ,313 137 , 600 

July ............ .... .......... .. ..... ...... 48,:SS2 8,~90 ].88 1,561 95,960 

Aupat .. ....... ....... .. .. . ..... ..... ... ... 5,976 ~04 111 19~ 11 ,850 

Septellber . . .. . ........... . .... . •.. , . . . ..... 110,606 27 ,400 48 3,687 219,400 

Water year 1940-4.1 ...... ... . . ..... .. .. . . 706,461 2'7,400 19 1,933 1,399,000 

Peak 41ecbarge.- ftay 3 (7 •·•·) 20,&00 eec.-tt.J J'lay 8 (5 • ••• ) 

a.a.) 8 , 840 aoc .-tt.; Sept. 22 (10 a.a.) 27,800 aoo.-tt. 2~,000 aec .-tt.; Ju.ly 16 (12 :30 

a Jo gago-ho1gbt l"'ecOrdJ Oa.lal1en. 

41acbarge ccmpute4 on baa1a ot known range 1n atage and. record at 

Wote .- D1aoharge JUly 22 to Sept. 16, Sept. 27-30 OOI:Ipute4 t'rom graph baaed. on ono or m.ore daUy 

retereno• gage read1nga. 
NUECES RI·VER BABIN 

Nueces R1 ver at Calallen, Tex. 

Location.- Sta!t gage, lat. 27°52' 40", long. 97°37'35", at old pump house ot city ot Corpus Christl, halt a mile northwest ot Calallen , Nueces County, and halt a mile 

upstream trom tidewater and breakwater dam. Datum ot gage Is 1.12 teet above mean sea level, datum ot 1929 . 

Drainage area.- 16, 920 square miles. 

153 

Records available .- August 1915 to September 1941. (1916-41, gage he i ghts only). 

Extremes.- Maximum gage height observed during year, 11 .97 tee t May 4; minimum observed, 

3.34 reet Apr. 16. 

1915-41: Maximum gage height obse rved, 12 .40 teet June 19, 27, 1935; no now Aug. 23-29 , 1916 (only peri od ot no now known). 

Remarks.- Discharge not computed. Gage read twl ce daily. 

Coopera t i on .- Gage readings t um I shed by cl ty ot Corpus ChristL 

Gage height, 1n tee t , watar y ear October 1940 to September 1941 

~ Oct . Nov . Oeo . Jan . Feb . Mar. Apr . lla.y Juno J uly Aug. Sept. 

1 3 . 50 6.98 3.so 3.72 6.60 3.96 4.10 9 . 73 6 . 67 5 . 58 4.00 3.ss 

2 3 .52 5 .64 3.74 3 . 60 6.49 3.96 4.10 10 . 13 5 . S3 5 . 76 3.99 3 . 86 

3 3 . 53 5.53 3.80 3.53 5.40 3.96 4.10 11.48 5 . 25 5 . 8 4 4. 00 3.85 

• 3 . 51 6.64 3.8o 3.49 5 . 42 3 . 96 4.08 11.90 4.79 5.85 3. 98 3 . 85 

5 3.52 5.45 3.80 3.64 5 . 64 3.96 4.07 11 . 23 5 .33 5 . 29 3.99 3 . 84 

6 3.60 s .31 3.78 3 . 66 6 .6]. 3.96 4.08 10 .63 5 .67 4. 77 3 . 98 3.85 

7 3.64 6 . 26 3 . 77 3 . 64 5 . 44 3.80 4 . 1.0 10.4( 6.66 4.43 4.02 3.81 

B 3 . 61 5 . 36 3.8o 3 . 61 6 . 07 3. 60 4.10 1]. .06 6.78 4.23 4.02 3 . 59 

9 3 .58 5.63 3 . 78 3 . 60 6.92 3 . 65 4 . 08 11 . 47 5.68 4.10 4.08 3.55 

10 3 . 67 6.70 3 . 8 0 3.60 7.70 3 . 86 4.06 11 . 29 5 .32 4.24 4 . 26 3.69 

11 3.68 6 .63 3 .78 3.50 8 .10 3 . 88 3 . 87 10.88 6 . 68 4.69 , , 4J. 3 . 81 

12 3.66 5 .55 3 . 57 3 . 50 7 .69 3.88 3 . 66 10.66 6.65 6.10 4. 26 3.68 

13 3.64 6 . 16 3.60 3.60 6 . 72 3.87 3.51 10.31 8 .10 6 .47 4.16 3 . 55 

14 3,64 4.07 3 . 62 3.60 6.24 3 . 85 3.60 9 . 96 8 .56 7 . 46 4.14 3 . 61 

15 3.57 4.00 3 .53 3.50 6 . 06 3 .88 3.43 9 . 68 8 .77 8 . 28 4.12 3.67 

1.6 3.60 3.95 3. 51 3 . 53 6 . 00 3.64 3.48 9 .1.9 8 . 60 8 . 86 4.16 3.62 

17 3.60 3.70 3 . 50 3.46 s . 99 3 .53 3.48 8 . 55 8 .17 9 .19 4.30 3.65 

18 3 .48 3.63 3 . 50 3.50 5.88 3.57 3.37 7 . 87 7 .72 9 .12 4.19 4.16 

19 3.48 3.60 4 . 86 3 . 60 4.73 3 . 64 3 . 41 7.12 7 . 8 4 8 . 26 4.13 5 . 62 

20 3 . 50 3. 60 6 . 43 3 . 60 4.12 3.53 3.41 6.32 8.10 6 . 73 4 . 09 6 . 86 , 21 3.50 3 . 60 5 . 60 3. 60 4.00 4 . 06 ~-40 6 . 53 a.r1 5 . 2? :5.87 8.13 

22 3 . 50 3 . 61 6 . 86 3.48 4 . 00 4 . 67 3 . 40 8 . 20 7 . 61 4.74 3 . 83 9 . 22 

23 3 . 60 3 . 64 6 .39 3 . 48 4.16 4 . 25 3 . 40 8 . 83 7 . 68 4 . 46 3.86 1]..13 

24 3 . 50 3.67 6 . 38 3 . 45 4,20 3 . 98 3 . 43 8 . 91 6 . 48 4 . 25 3 . 98 11 . 29 

25 3 . 80 3.86 6 . 46 3 . 47 4.10 4.17 3 . 40 9 . 18 5 . 29 4 . 15 3 . 86 10.56 

26 4.80 4.59 5 . 20 3 . 49 4 . 00 4.65 3.41 9.12 4.95 4 . 10 3.86 9 . 57 

27 5 . 20 4.60 5.40 3 . 50 4.00 4 . 97 6 . 63 8 . 64 5 . 25 4 . 35 3 . 86 8 . 35 

28 5 . 20 4.55 5 . 33 3 . 53 3 . 97 5 . 03 8 . 60 7 .42 5 . 17 4 . 30 3 . 86 6 . 16 

29 6.28 4.22 4.71 3 . 53 - 5 . 04 9 . 38 5 . 99 5.18 4.22 3 . 82 4 . 86 

30 6 . 56 3 . 82 4 . 25 3.86 - 5.03 9.60 6 . 56 5 . 32 4 . 06 3.81 4 . 62 

31 6 . 01 - 3.97 6 . 22 - 4 . 35 - 5 . 65 - 4 . 04 3.85 -

west Nueces River seepage Investigation 

A ae ries ot discharge measurements was made on May 13, 1941, on the West Nueces Rlver 

and tributaries, Texas, between a point 1,000 reet above gaging station near Brackettville 

and a point 37 miles downstream (0.6 mile upstream rrom mouth). to determine the seepage gains or losses. The river was telling about 0 . 5 second-root per day at gaging station. 

All n owl ng tributaries were measured. · 

Dieobarge meaaurementa of We st NUecea River a.nd tributary between point 1 , 000 teet above gaging sta- tion near BraelcettvUle , Tex ., and a pol.nt 0 . 8 m.U.e above mouth, Kay 13 , 19 41 , to detenn.ine seepage gains or losses 

Distance 

below Diaeha.rge 1n aeconcl-t'eet 

Da~ Stream Location 1n1t1a.l Gain or Total point !lain Tr ibu- lose 1n gain or (mUe e) atr e8Jil tary aectlon loss 

Hay 13 Weat Nuecea 1,000 root above gaging e ta- 0 2 .3 River . tlon near Brackettville , Tex. • 

13 . . . • do .• • • • 2 . 6 mllea above Live Oak 9 . 2 S.3 -+ 6 . 0 >6. 0 

Creek , 13 Live Oak 0 . 6 mile &bove mouth or u .s 4 . 8 

Creole . creek . 13 West Nuocea 1.6 mil-ea below Live Oo.k 1~.4 21.1 -.e.o +14. .0 

River. Creek. 13 ••• • do •• • •• 0 . 8 mlle above mouth of 37 . 0 0 - 21.1 - 7 . 1 river. 
154 NUECES RIVER BASIN 

F'rlo River at Concan, Tex. 

Location .- Water-stage recorder, lat. 29°29' , long. 99°42 ', hal! a mile southeast o r Concan post o!tl ce , Uvalde County, and 15 miles upstream !rom Dry F'rlo River. Da tum ot gage Is 1, 203. 71 t eet above mean sea level , datum or 1929 . 

Drainage area. - 485 square miles. 

Records available.- October 1923 to September 1941. 

Average discharge .- 16 years (1924-29 , 1930-41) , 119 second-tee t. 

Extremes.- Maximum discharge during year, ~ 720 second-tee t Apr . 27 (gage height, 7.04 t ee t); mi nimum, 24 second-teet Oct. 17-~. 

1923-41: Maximum discharge , 162, 000 second-teet July 1 , 1932 (gage height, 34 .44 

teet, !rom tloodmarkB), by slope-area method ; minimum obse rved , 8.1 second-teet Aug . 2, 3 , . 1928. 

Rema rks .- Records good except those above 400 second-teet, which are !air. Part or the ---rrowor the F'rl o River ente rs the Edwards limestone In the Balcones fault zone whi ch crosses the basin Just north or uvalde and downstream !rom the sta tion. Moat or the 

low !low enters this !ormation. No dive rsi ons above gage. 

Rating table , water year 194o-·4l (gage height , in foot , -.nd diaob•rge , tn second-root) 

1.~0 17 

l.S6 24 1.40 ~2 

1 . -..5 4-1 1 . 60 52 1.60 74 

1.70 QS 

1.80 122 2.00 184 2 . 20 270 2 •. 60 4(6 

2 . 80 660 

s.oo S . 60 ( . 00 

( . 60 

806 1 , 280 1 , 840 2 , 460 

Discharge , in second-teet. water year Ootober 1940 to September 1941 

Da Oct . Nov . Dec . Jan . F'eb . War . Apr . May June Ju l y Aug . Sept . 

l 32 42 ·~ a68 91 72 10~ 458 166 115 74 96 

2 so ~2 41 a6? 76 72 100 605 168 112 74 9S 

3 ~0 ~0 41 a66 74 70 100 846 163 110 72 93 

4 29 30 41 a66 76 70 100 616 160 108 7 2 91 

5 29 3( 41 a66 76 70 98 646 166 106 74 91 

6 29 ~· 4l a64 79 79 98 484 152 105 7 4 88 

7 41 ~· 41 a6S 74 7 2 96 ~a 149 100 7 2 88 

8 30 45 4l a62 79 70 9~ 406 146 103 1 , 010 86 

9 27 46 4l a62 79 67 9S ~6 144 100 564 240 

10 27 a45 4l 61 79 67 9S ~9S 146 100 256 .>05 

ll 27 ·~~ HC 61 76 66 9~ ~68 U.• l SO 180 226 

12 27 a46 8 4 61 76 65 9~ ~50 24Q 112 162 419 

13 

~ aH 7 61 74 66 96 ~~2 194 106 lSS M 4 

14 aH ~~ 61 74 eo 98 315 149 108 l~S 280 

15 a44 69 74 66 104 ~00 186 10~ 127 24S 

16 ~E a44 8 69 74 65 126 286 160 100 122 2M 

17 ... 7 59 7 4 10~ 100 276 144 105 120 256 

18 2 a4-4 ·?.~ 59 74 126 96 261 141 96 115 262 

19 2 a44 7~ 56 74 108 93 261 l~ 96 112 238 

20 2 &4 a7 56 74 105 88 256 136 96 110 226 

21 2 a43 a7E 54 74 106 86 24S l~ 9~ 108 217 

22 

~ •• a? 54 74 105 88 2Sf 1~8 91 106 204 

23 a 43 a7 54 81 100 91 226 1~6 91 106 200 

24 

~ !~ a7 64 79 100 91 221 l~ 88 106 200 

25 a? 52 79 100 91 209 ~0 86 103 188 

26 ~c 

:~ a? ~ 76 115 277 200 1~0 86 100 180 

27 2 a7 74 110 2 , 340 196 127 84 lOS 177 

28 

~ 4l a? 54 72 108 1 , 360 188 122 81 110 170 

29 ~ a?C 52 - 105 681 184 1 20 81 100 186 

~ : 4~ a6 50 - 106 531 180 117 79 96 160 

31 - a 6E 64 - 10~ - 174 - 76 93 -

Month Second- Maximum M1.n11DWI Mean Runorr iD root~ays acr~ reet 

October ... .. .... . . . . . . . .. ... . . . .•.. . .. · ·· · · 926 88 24 29 ,8 1 , 830 Noveaber . . . . ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 , 249 45 so 41 .6 2 , 480 Deceaber ... .. . . . . .. ... . .. . .. . .. .... .. ····· · 2 , 049 140 41 66 .1 4 ,060 -- ----- --- --- ------ ------ -- ---- Calendar year 1940 ... .. .. ... ·•· ..... .... 22 ,748 586 24 62 . 2 45 ,110 

--- - --- ------ - - ---- ------ ------ January .. .. . . . . .. . ... . . .. ... .•. .. . . .. . . . .. . 8~ 68 60 59. 0 6~ 

February ... . . . . . . . . .. . . . . . • ... . ... . .. . .. . . . 2 , 136 91 7 2 ?6 ~ 4,2.t0 

March ........ . .. .. .. .. . .. . .. . . .... . ... . .. . . 2 ,699 125 65 8 7.1 5 , 350 

April . ... . ..... • . . . . . • . . . . • .. •. . ~ .. . . . .. . . . 7 , 598 2 ,340 86 263 15,070 

llay .... . .. ..... .. ..... .. .. ...... .......... 10 ,433 846 174 337 20 , 690 

June . . .. .. .... .... .. ... ... ... ... .... 4 , 4'77 249 117 149 8 , 880 

July ........ ... .... ....... .... .... ... ..... . 3 , 050 130 76 98 . 4 6 , 060 

August ...... ..... .. ····· ····· ······ ··· ···· 4,781 1 , 010 72 154 9,480 

Septembe r . . . .......... ... .. ... ....... . . ... . . 5 , 849 4U 86 195 ll , 600 

Water year 1940-41 .... ... ··· ········ ·· 47 ,r:n& 2,340 24 129 93 ,360 

Peak diachar,so .- APr . 27 (6 p.m. ) 6 , 720 a eo .-rt. J ~a:r 2 (10•30 p.m.) 1,380 oac,-rt .; Aug. 8 {l p .m. 

3 J2lO seo . rt. a No gago-bolg)lt record Nov . 10- 23 , Dec. 18 to Jan . 9J <11 s ohargo computed on baele ot lmorm ra.ngo 

in stage and engineer's notes. 
NUEX:E:S RIVER BASIN 155 

Frio R1 ver near Derby , Tex . 

Location .- water-stage recorder and concrete control, lat . 28°44 ' lD', long . 99°D8 ' 45', at bridge on u. S. Hi ghway 81 , 150 f eet upstream from International-Great Northern 

Railroad bri dge , 750 tee t downstream from Leona River, and 2.4 miles south r Derby , Frio County . Datum or gage Is 449 .3 feet 1\bove mean sea level, datum or 1929 . 

Drainage area .- 3 , 493 square mlles. 

Records available .- August 1915 to Septembe r 1941 . 

Average discharge .- 26 years, 175 second-fe e t. 

Extremes .- Maximum discharge during year, 20 , 000 second-teet Feb . 3 (gage height, 13 .82 r ee t) ; no !low Oct . 1 t o Nov. 1 . 1915-41: Maximum discharge , 230 , 000 second-feet Jul y 4, 1932 (gage heigh t, 29.60 t eet, present s l te , from tloodmarks at former s l te) , by slope-ar ea method; no now at times . 

Rem~~~~ ·~rR~r~~rg~~foe~f~~; ~~~srt; ~~~~~~~ ~~t~~et~: ~~~ ~~ i1me~~b~~ !~t~~or. Balcones rault zone which cr osses basin Just north or Uvalde. At low stages all or headwater tlow, wlth rew excepti ons , ente rs this formation . Diversions tor Irriga ti on 

above stati on . 

Rati ng table , water year 19-IC>-41 (gaS'J holgbt, in feet , a.nd discharge, in .second-toot) 

(Shifting-control method ueed Nov . 11 to Jan . 9) 

o.oe 0 0 . 6 38 3 . 0 e.o .10 .1 .a 66 4.0 1 , 220 

.15 .. l.O 98 5 . 0 1 ,620 

.20 1 . 0 1.5 199 6 .0 2 , 070 

.30 5 . 0 2 . 0 340 7 . 0 2 , 660 

• 40 H • 2 . 5 550 

Disc harge. in second-feet, water year October 1940 t o September 1941 

0&,) Oct . Nov . Doc . Jan . Feb . War. Apr . lley June July Aug . Sept . 

1 1.1 7 . 7 5 . 0 176 17 68 2 , 180 54 17 3 . 6 20 

2 117 7 . 7 5 . 0 8 , 720 16 60 1 , 180 61 14 4. 2 10 

3 25 7 . 7 5 . 0 1 3 , 000 17 52 920 55 13 4. 2 6.8 

4 24 8 . 6 5 . 9 2 , 460 17 47 2 , 250 55 ll 4 . 2 5.0 

5 17 9 . 5 6.8 664 17 46 3 , 0'10 58 10 5 . 0 5 . 0 

6 167 10 6.8 258 17 38 1,960 64 10 5.0 5.9 

7 158 10 6 . 8 184 18 28 1 , 340 51 10 5 . 0 5 .9 

8 95 9 . 5 6 . e 148 19 24 855 46 10 6 . 8 5 . 9 

9 66 8 . 6 6 . 8 118 19 21 698 42 9 . 5 . 621 5 . 0 

10 28 9 . 5 6 . 8 100 19 18 546 38 7 . 7 , 060 9 .2 

11 13 9 . 5 7 . 7 92 22 16 44~ 36 6 . 8 (380 564 

12 7 . 7 10 7 . 7 76 20 13 368 32 189 r166 251 

13 4 . 2 85 8 . 6 63 18 11 312 30 364 fl12 532 

14 2 .8 168 8 . 6 ~~ 18 11 279 26 164 r82 538 

15 2 . 1 7 2 7.7 19 9 . 5 268 26 88 f55 199 

16 2 . 1 456 5 . 9 36 18 10 227 376 46 rn 135 

17 

~ 470 3 . 6 26 16 11 201 1,290 33 r28 lOg 18 143 3 . 2 24 17 11 184 377 27 !21 126 

19 3 . 2 8 7 3 . 6 19 726 11 173 100 20 ne 124 

20 3 . 6 51 3 . 6 19 1 ,320 17 160 68 16 1 7 93 

21 3 . 6 30 3 . 2 18 460 30 150 42 11 13 88 

22 4 . 17 3 . 2 17 241 24 141 33 10 11 76 

23 4 . 11 3 . 6 17 160 19 133 27 9 . 5 8 . 6 69 

24 t: 7 . 7 4. 2 17 122 16 127 26 9 . 5 5 . 9 64 

25 5 . 9 6 . 0 16 102 13 122 21 8 . 6 4 . 2 60 

26 6 . ! 5 .( 6 . 8 16 85 21 111 19 6. 8 2.8 M 

Z7 6 .! 4. 6 . 8 17 76 83 112 17 4 . 2 1 . 8 52 

28 7 . 4 . 5 . 9 17 456 1 , 220 98 61 4. 2 .7 47 

29 7 . 4 . 93 236 4,620 87 48 3 . 6 1.2 42 

30 7 . 4 . 184 120 4,800 79 24 3 .6 19 u 31 5 .( 153 82 72 3 . 6 42 

Month Second- Maximum Minimum Mean Runorr i n root-days ac r&-fee t 

October ... . .. .. .. .. ···· ·· ········ 0 0 0 0 0 November .... . . . . . ..... . . . ........... .. . ... 8 04 . 7 167 1.1 26.8 1,600 Deoe•ber . ... ... ........... .... ...... . ...... 1 , 738 .7 470 4 . 2 56 . 1 3 ,450 

------- Calendar year 1940 ..... ....... .......... 8 , 972 . 5 902 0 24. 5 17 , 790 

January . . . ... . . . . ... ............. .. ........ 590 . 6 184 3 . 2 19 . 1 1 , 170 

February . ... . ... . .... . . . .. . ................ 24 , 4.13 13 , 000 16 872 48 ,420 

Ma rch ........... . ...... . .... . ........ .. .... 4 , 510 1 , 320 16 145 8 , 950 Ap ri l ..... . ... • .. . . . . .• . . •..... . .•. 11 , 368 . 5 4,800 9. 6 379 22 , 650 

May . ........ . .... P O • •••• • ••••• • • • •• • ••••• ,. 18 , 8 37 3,070 7 2 606 37 , 360 

June ......... . •.... . .... ... . . ... ... .. 3 , 192 1 , 290 17 106 ,3~ 

J uly ... .... ..... .... ... ....... . . . .. .... . . . . 1,140 .6 364 3 . 6 36 . 8 2 , 260 

August . .....................•. .. ..... . .... . 3 , 752 . 2 2,060 . 7 121 7 ,.40 

Septembe r . .......... . ... . .. . . . ... . . . .... . . . 3,342.7 564 5 . 0 111 6 , 630 

Water year 1940 - ·U . . . . . . . . . . . . . . 73 , 690 . 0 13 , 000 0 202 14 6 , 200 

Peak dln ohargo .- Fob . 3 (3 a . m. ) 20 , 000 sec .-ft .; l1ar. 20 (4:30 t. .m. ) 1,800 eeo .-rt.; Apr. 2Q 

(9:30 p.m . } 6 , 240 ao c.-ft . .: l1ay 5 (7 a.m . ) 3 , 470 e ec .-ft.; .Tune 17 (8 a.m. ) 1 , 490 eec .-rt.; Aug . 10 

(9 a . m. ) 2 , 650 3eo .-rt. f Fragmentary gage -height record; dieoharge oom,puted fl'om partly e s timated gage he1gbte . 

498588 0 - 43 - 11 
156 NUECES RIVER BASIN 

Frl o Rl ver at Calliham, Tex . 

Location.- Water-stage recorder and concrete control, lat . 28°29'30', long. 98°20'45', at bridge on Calllham-Whl tsett highway, l mile north ot Calliham, McMullen County, and 9.7 miles below mouth ot San Miguel Creek. Datum ot gage Is 153.47 teet above mean sea level. 

Drainage area.- 5,491 square miles. 

Records available.- Octobe r 1924 t o April 1926, April 1932 to September 1941. 

Average discharge.- 10 years (1924-25, 1932-41 ), 316 se cond-teet. 

E:xtremes.- Maximum discharge during year, 21 , 900 second-teet Sept. 18 (gage height , 31.44 t eet); minimum, 0. 7 second-toot Oct. 6, 7 . 1924-26, 1932-41: Maximum discharge, 109,000 second-teet July 6, 1932 (gage height, .f>9 .20 tee t, rrom tloodmarks), by slope- area method; no now at times . 

Remarks .- Re co rds good. Part or now ot the Fri o River and Its tri butaries enters the 

---;;awa-rds limestone In the Ba1cones f ault zone which c rosses basin Just north ot uvalde. 

At low stages all or the headwater flow, with raw exce ptions, enters this !ormation. 

Diversions tor Irrigation above station . 

Discharge , in second-teet, water year October 1940 to Septeaber 194~ 

Dey Oct. Nov. Dec. Jan . Feb . War . Apr . II~ J une Jul y Aug. Sept . 

1 1.6 ,170 7.5 20 .74 26 ~90 700 1~~ H 6.7 6 . 2 

2 1.4 e4~ 7.1 17 1,140 26 199 2,560 11~ 55 e •. ~ 5,2 

3 1 •• ~~0 6 . 5 16 750 25 166 10,100 1~ 58 7 . 5 4 1 . 0 eo 5 . 5 15 724 2. ~ 9' 14 , 100 605 H 6 . 5 e 

5 .9 6e 5 . 2 H 962 21 94 8 ,680 1 ,060 ~4 5.5 4.5 

G . 7 4~0 5.2 12 o 20 79 6,150 560 ~0 4.e 1e 

7 4.6 e10 5 .2 12 6 , 9eo 20 65 4,020 164 26 6 . e H 

8 1~~ ~42 5.2 12 4,100 1e 54 3 ,330 109 22 12 10 

9 ~ 9' 5.2 12 1,280 17 49 3 ,000· 94 20 17 9 . 2 

10 H 190 5 , 5 12 426 17 44 2 , 620 147 29 12 9 . 2 

11 7 . 1 156 e .3 11 268 1e ~6 1,840 2fT/ 246 11 7 . 1 

12 ~ 116 e . 3 11 185 17 ~0 1,190 eo 580 77 6 . 5 13 2 .9 e2 7 . 5 11 14e 15 27 7eo 69 557 600 5 , 5 

14 2.2 52 55 11 125 1~ 24 585 367 264 e25 174 

15 57 ~6 19e 11 109 12 22 501 219 1e2 ~0 347 

16 6 . 8 27 635 11 92 12 20 454 1 , 580 475 158 ~7~ 

17 3 .1 21 728 10 79 16 19 417 1,400 = 107 geeo 18 5 . 2 18 ~e5 10 68 270 17 ~77 94e 1~e 79 eoo 19 5 . e 15 ~45 10 60 460 15 ~~4 475 e 4 58 7, 400 

20 ~.6 14 , 620 9 . 2 52 156 13 294 765 61 46 8 , 580 

21 1 12 , 170 8 . 7 •U 90 1 2 56~ e4e 44 ~ 2 ,320 

22 2 . 2 12 6~2 8 . 7 42 ~26 12 1,090 297 37 ~1 50~ 

23 l.S 12 ~~ 8 . 7 40 820 14 1 , 420 He ~0 25 ~0 

24 1.7 11 135 7 . e ~e 912 14 545 96 24 21 170 

25 438 11 105 6 . e 37 706 1~ 364 75 20 17 145 

26 833 11 eo 6 . 2 36 456 1,420 268 6~ 17 15 125 

27 222 12 61 2 , 6.5 32 26e 6,000 199 55 15 12 11~ 

2e 60 e.7 44 ,150 29 15e 1~ 600 195 4e 1~ 11 106 

29 ~4 7 .5 31 1,480 121 13,800 170 227 12 10 105 

30 29 7 . e 26 1,460 1~ 6,950 360 66 11 8 . 7 105 

31 27 22 1 ,170 ~40 191 10 7.1 

llonth Second- Ma.xiaua Minimum Moan Runorr 1n root-days acre-teet 

Octobe r . . . . •••••a • ••••••••••• 1,946 . 63~ 0 .7 62 . 8 1!50 

Nove111ber . •• •• • ••• • • •• ••• • ••a • ••• • ••••••••• 

:::~: g 1 , 170 7 . 5 167 9,920 December .... •• • ••••• • •••oa • •••• • • • ••O•• 1 , 620 5 .2 216 13 , 2'70 

- -1o7-,; 1s .6 ------ Cal endar year 19•0 ··· ········ ·········· 9 ,ll0 ,3 294 213,700 ------- January . ..... .. ..... . .... ..... .. ..... ... 6,560 .6 2 ,150 6 . 2 212 13 , 010 February . .... .. ... . • . . a • . • . •.• a • . •• . • .••... 21,700 6,980 29 775 4:3,0.0 March . . . . ... .. . . .... .. . ..•..........•...... 5,502 912 1 2 177 10 , 910 April. .. . . . . . . ..•..• . .... . ... . •.. • ......... 43,292 13 , 800 12 1 , •• 3 85 , 870 ~ ..... ........ ... ....... .... ... .... .. 70,397 14 ,100 170 2,2'71 139 ,600 J une . ... .. . . . . .. . . .• ... ... . .. . . . . . . . . . . . . . ll ,111 1 , 580 46 370 22 ,04:0 J uly ...... . . . . ..•. .• . . • . . •.•• .•. .•. . •...... 

:: ~t~ 580 10 112 6,870 August ... . . . . . . . . . .... . . . ..• .. • . . . .•. . . . ... e25 4 . e e6.3 5 , 310 Septe•ber .. . . . ...... . ... . . ..... . .... . .. .. .. 66 578 ~ 20 ,800 ~.e 1,6815 112 , 200 

Water year 194o-41 . . . . . . . . . . . . . . . . . . . . . . 234 919 ~ 20 , 800 .7 644 456 , 900 

Peak dlecharge.- Pob . 7 (3 130 p.m . ) 7 , 430 eec .-rt.J Apr . 29 (3 ..... ) 16 , . 00 eec.-rt. ; Play 4 (4 ..... ) 

16 ,400 sec.-ft .; Sept. 1e (9 •·•· ) 21 , 900 eee .-'ft. 
NUECES RIVER BABIN 157 

Leona River spring !low near Uvalde, Tex. 

Location.- Water-stage r e corder, l at. 29°09', long. 99°44', at old road c rossing on whi te 's Ranch, 3t miles downstream from Cooks Slough and 5.6 miles sout heast or uval de, Uvalde County. 

Records available.- Janua ry 1939 t o Sep t ember 1941. Occasi onal d ischarge measurements since 1925 in connec ti on wi th seepage Investigati ons . 

E:xtremes.- Maximum daily discharge du ring ye ar, 26 second-tee t July 15 , Sept . 19- 26 ; maximum gage height (flood runort ), 5 . 10 ree t May 3; minimum dally, 12 second- tee t several days In Februa ry, March , and Aprll. 1939-41: Maximum dally discharge, 27 s econd- t ee t Jan . 10, 11 , 1940 ; maximum 

gage height (flood runoff), 12.87 fe e t July 13 , 1939 ; mi nimum dally, that of Febru- ary, March , and April, 1941. 

RemarkS.- Recorda good. Discharge represen ts now from seve ral spri ngs that enter ri ve r ---aDOV8 s ta tl on and bel ow Uval de. Surf ace runort from prec l p1 tat! on Is excluded . Many 

small d l versions by pumping r rom r l ver channel above s tati on. 

Discharge , in sec ond-teet , water year October 1940 to September 194.1 

Da Oot . Nov . Dec . Jan . Feb . Wa r . Apr . May June July Aug . Sept. 

1 1~ 1~ H 1~ 1~ 1~ 12 16 19 ~ 22 22 

2 1~ 13 u 13 12 13 12 16 20 ~ 22 22 

3 13 13 u 13 12 13 12 17 20 22 22 22 

4 13 13 14 13 12 13 12 17 22 ~ 22 22 

5 13 13 u 13 12 13 13 18 22 24 22 22 

6 13 13 u 13 12 13 13 18 22 24 2 2 22 

7 H 13 H 1~ 12 13 12 18 22 24 22 22 

8 13 H H 13 12 13 13 18 22 24 22 22 

9 13 H H 13 12 13 13 18 22 24 ~ 24 

10 13 u H 13 12 13 1~ 18 22 24 ~ 24 

11 13 H H 13 12 13 1~ 18 21 24 23 24 

12 13 u u 13 12 13 13 18 21 24 ~ 24 

13 13 H u 13 1 2 13 13 18 21 24 22 24 

14 H H H 13 12 13 13 18 22 24 22 24 

15 13 H H 13 12 13 13 18 22 26 22 24 

16 13 H H 13 12 13 13 18 22 26 22 24 

17 H H H 13 12 13 13 18 22 24 22 24 

18 H H H 13 12 13 H 18 22 24 22 24 

19 H H H 13 12 13 H 18 22 24 22 26 

20 u u 13 13 12 13 H 18 22 24 22 26 

21 H H 13 13 12 13 H 18 22 24 22 26 

22 H H 13 1~ 1 2 1~ H 18 22 24 21 26 

23 u H 13 1~ 1~ 12 16 18 22 24 22 26 

24 u H 1~ 13 13 12 H 19 22 23 22 26 

25 H H 13 1~ 12 12 H 19 ~ 22 22 26 

26 u u ~ 1~ 12 12 u 19 ~ 22 22 26 

'Z7 u u 13 13 1~ 12 H 19 24 22 22 26 

28 H u 1~ 13 13 12 H 19 24 22 22 26 

29 u H 13 13 12 16. 19 2~ 22 22 26 

30 u H 13 13 12 16 19 ~ 22 22 25 

31 H 13 13 12 19 22 22 

Month Second- Maxi•U. IIUni•uc Mean Runorr in root-days acre-teet 

Oot.obe r ... .. ... ..... ..... .. . •.......•.. .... 420 H 1~ 13.5 83~ 

Nove•ber . ... . ............•..•. . ...... . .. . .. 413 H 13 13.8 819 

Oeoe•bar ........... . ............ . ........ 422 H 13 1~ 6 8~7 

------- Calendar year 1940 ....•..•.......•...... 6 , 825 'Z7 13 18 . 1 1::5 , 140 

------- January .. ..... .... ........ ...... .... .... ... 40~ 1~ 1~ 13 . 0 799 

Februe.ry . . .. . .......... . ................... 3 41 13 12 12. 2 676 

Mar ch . .. . ... . . . ..•. . • . . . ....•. . •..• . . . . . . . • 394 1~ 1 2 12 . 7 781 

April ... . . . ... . ..• . . • ..• . .. ....•..•.. . . . .. • 401 15 1 2 1~.4 796 

May ... .. . ..... . .....•. . ... . ... . •. . •.. . . . ..• 660 19 16 18 . 1 1,110 

June . ..... . ..... . •. ·· · ····· · · ········ · · · ··· 658 24 19 21.9 1,310 

July •... . ..... .. .•. ··· ········ ·· · · · ·· ·· ···· 727 26 22 ~.5 1 , 440 

August . . . ...... ... . . .. . ........ ....... ... . 685 23 21 22 .1 1 , 360 

September .. .... ..... ...... .. .. .... 724 26 22 24 . 1 1 , 4-40 

Water year 1940-41 ..... .... .... ....... 6 , 148 26 12 16.8 12 , 200 
158 NU£CES RI V!:R BASIN 

Atascosa River at Whitsett, Tex. 

Location .- Water-s tage recorder and wooden control, lat. 28°39 ', long. 98°18 • , 0 .9 mile west of Whl tse tt, Live Oak County, and 4 miles downstream from La Parlta Creek . Datum of gage Is 159 .0 t eet above mean sea level, datum of 1929. 

Drainage area.- 1,171 square miles. 

Records available .- September 1924 to May 1926 , May 1932 to Septamber 1941. 

Ave!:!Y!ie dlscha!:Se .- 10 years ( 1924-25, 1932-41). 142 second-teet. 

£xtremes.- Maximum discharge during yea r, 25,300 second-tee t Sept.ll8 

teet, from tloodmarks); minimum, 2 .5 second-teet, Oct. 5, 6. 

(gage he i ght, 34.0 

1924-26, 1932-41: Maximum discharge , 38 ,300 second-teet June 14 , 38. 0 t ee t, from tloodmarks) , by slope- area method; no now at times. 

1935 (gage height, 

Remarks.- Records good. No diversions above stati on. 

Discharge, i n second-teet. water year October 19.0 to September 1V41 

0~ Oct . Nov. Dec . Jan . Feb\ 

l 3.8 1 , 620 32 42 128 2 3 . 6 1 , 6 40 30 40 1 , 240 3 3.4 290 29 37 1 , 040 4 3 . 0 74 28 36 157 5 2 . 7 25{ 27 35 83 

6 2.7 2,340 26 34 83 7 32 :5,.360 28 33 85 8 33 702 74 32 H7 9 n 164 68 32 302 10 u 122 37 31 H7 

ll 7 . 8 96 31 29 79 12 6 . 1 77 31 29 55 13 5 . 2 66 29 29 45 14 4 . 9 57 55 29 41 15 57 52 242 46 37 

16 55 48 1,400 35 35 17 4l 45 1,080 29 33 18 15 43 151 27 33 19 9 . 4 4l 258 25 32 20 6 . 7 39 1,710 25 31 

21 5 . 8 37 2 , 210 25 30 22 4. 9 37 396 25 31 23 4 . 9 129 137 25 47 24 4 . 6 69 91 25 83 25 65 338 74 25 74 

26 976 77 67 25 53 27 604 48 69 38 39 

28 119 39 64 886 33 29 52 35 54 1 , 080 

30 34 33 48 149 31 118 44 69 

Month 

October ..... . November .... . December ... . ... . ........ ...... . . . . . . .. . . .. . 

Calendar year 1 940 

Wa r . Apr . llay 

30 3 4 605 29 3 4 591 29 76 7 , 580 28 225 11 ,600 26 76 :5 , 820 

26 38 71Q 

25 30 464 25 105 2{6 36 46 177 28 33 H2 

25 25 122 25 22 104 22 22 94 21 21 85 22 21 79 

22 21 73 24 36 68 386 136 64 677 248 61 260 52 57 

98 28 369 64 25 1 ,150 50 32 1 , 510 54 38 1,870 278 25 1 , 290 

222 717 2{8 94 3,500 121 73 10,600 92 75 fl3 ,100 252 48 5,820 1 , 520 38 1,260 

Secondroot-days Maximum 

2 , :535 . 6 

11,962 

8 , 628 

51,328 . 0 

976 

3,350 

2,210 

4 , 330 

June 

162 

88 

65 

870 2 ,620 

60& 

109 

64 

45 

4l 

96 

250 1,500 

~0 

477 

473 

910 1,450 

974 

198 

154 

203 

100 

77 

67 

61 

64 

71 

101 

62 

IUnimum 

2 . 7 33 

26 

July 

47 

n 

37 

35 

33 

32 

30 

29 

26 

42 

32 

25 

660 

157 

188 

151 

66 

33 

28 

24 

22 

21 

21 

19 

18 

18 

17 

16 

l5 

15 

13 

Mean 

Aug. Sept . 

13 6 . 7 

12 6 . 7 

11 6.4 

11 5 . 8 

11 5 . 5 

12 5 . 2 

701 4.9 ,900 4.6 414 6 . 6 74 9 . 0 

36 19 25 12 19 8 . 6 15 7 . 0 H 6 . 4 

13 9•4 12 tl4,400 11 t2l, OOO 

11 5 ,680 10 456 

9 . 8 163 9 . 0 96 8;6 66 8 . 2 51 7 . 8 43 

~ ~ 38 

35 8.9 31 8 . 6 30 7 . 8 •• 7 . 0 

Runort in acre-reat 

75 . 3 4,&30 23 , 730 17 ,uo 399 

278 

140 101,800 

January. . . . . . . . . . . . . . . . . . . . . . . . . . . 3 , 027 1 , 080 25 97.6 6 ,.ooo February . 4,223 1,240 30 151 8 , 380 Mar((h.. ... . . ... ....... 2 , 861 677 21 92 . 3 !5 , 670 21 1,173 57 1,175 

41 440 

April. . . . . . . .......... 35,186 13,100 69,790 

May . ... . . . . . .. ... ... .. .. . ... . ......... . .. . . 36 , 433 11 ,600 72,260 June .. . ... .... . . . ....... . . . ... ... 13,197 2 , 620 26 , 180 13 58 . 4 7 . 0 110 4.6 1,.09 

J uly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ,8 11 560 3 ,.690 August .......... ... 3 , 415.1 1,900 6 , 770 

September . . . . . . . . . . . . . . . . . . ........... . . ·t--'-2..c'_2_s_s_.8+--2-l_,_ooo_+-----!----+--8-3_, 8_2_o 

Water year 1940- oll . . . . . . . . . . . . 165 , 335 . 4 21 , 000 2 . 7 453 32'7 , 900 

l:S:m ~!~~~Ft~~ ~~:· ri ~~ ~ ~s~~~~~:: ~::;t~/pr . 29 (5 a .m. ) 15,000 aeo . - tt. J Hay . (7 a.m . ) 

t Fra~UZ~ ary gage-height record} dltsobarge computed from part ly eetimated gage bo i gbts . 
RIO ORANDE BASIN 159 

R!o Grande at Th!r tym!le Br !dge , near Cr eede, Colo . 

Locat ion .- Wa ter -stage recorder, lat . 37°44 ', long . 107°16 ', !n s ec . 13, T. 40 N., R. 4 W. , 500 t eet upstream ! r om Squaw Cr eek, three- quarters ot a m! le downstream ! r om R! o Grande Reservoir, and 20 m! les southwest or Creede . 

Dr ainage area .- 163 square m!les. 

Recor ds available .- June 1909 to Septembe r 1913 and October 1933 to September 1941 !n 

reports o! Geol ogica l Survey. June 1909 to September 1941 !n repor t s ot State eng! ~er. 

Aver age dis charge .- 28 years (l91G-23, 1926-41) , 227 second- t eet . 

Extr emes.- Max i mum dischar ge dur ing year, 2 , 680 second- teet June 19 (gage height, 5 . 08 t eet); m! ntmum dally, 3 . 0 second- teet Nov . 10 to Mar . 29 . 1909-41 : Max!mum discharge , 7 , 500 second- teet June 28 , 1927 (gage height , 7 . 03 t eet) ; mt ntmum dally, 0 . 6 second- r oot at lmes 1'.11 en reservoir was a bout empty and 

gates we r e clos ed . 

Remarks .- Records good except those t or period or lee street, wh! ch a re ta!r. Flow r egulated by R! o Gr ande Reservo!r(capac!ty, 45, 900 acre-tee t), just above station . 

Discha rge . in second-tee t , wa t e r year Oc t ober 1940 t o Septembe r 1941 

Da Oc t . Nov . Deo . Jan . Feb . liar. Ap r . Nay June July Aug . Sept . 

l 210 51 3 3 3 3 46 296 688 1 , 240 811 384 

2 190 60 3 3 3 3 46 321 392 1 ,:5 40 732 360 

3 169 60 3 3 3 3 46 318 14 1 , 400 673 329 

4 139 53 3 3 3 3 46 318 16 1 ,430 590 321 

5 1 77 32 3 3 3 3 47 314 18 1 , 430 564 321 

6 248 80 3 3 3 3 37 3 14 20 1 , 360 624 318 

7 207 47 3 3 3 3 30 202 23 1 , 300 748 229 

8 188 55 3 3 3 3 30 27 25 974 779 134 

9 169 3 . 3 3 3 3 3 30 3 . 3 53 1 , 160 7 40 132 

10 154 3 3 3 3 3 30 4 . 2 193 1 , 200 740 139 

11 139 3 3 3 3 3 30 5. 4 314 ,2~ 718 116 

12 128 3 3 3 3 3 30 6. 8 392 1 , 2.0 652 106 

13 1 25 3 3 3 3 3 28 7 . 6 468 1 , 220 603 106 

14 107 3 3 3 3 3 27 9 . 2 590 974 48 4 106 

15 112 3 3 3 3 3 27 10 7 25 610 448 106 

16 107 3 3 3 3 3 27 12 956 577 514 104 

17 10 2 3 3 3 3 3 27 14 1 , 790 6 24 610 119 

18 95 3 3 3 3 3 37 16 2 ,310 659 645 172 

19 92 3 3 3 3 3 52 239 2 , 480 695 532 223 

20 80 3 3 3 3 3 5 4 835 2., 250 803 48 4 3 48 

21 86 3 3 3 3 3 55 1, 160 2 , 160 763 372 107 

22 84 3 3 3 3 3 55 1,310 2 , 210 688 337 16 4 

23 86 3 3 3 3 3 55 1 , 290 2 , 250 725 28 1 27 

24 78 3 3 3 3 3 55 1 , 290 2 , 250 695 268 7 . 6 

25 80 3 3 3 3 3 55 1, 290 1 , 920 7 48 329 8 . 0 

26 84 3 3 3 3 3 57 886 1 , 940 763 360 8 . 4 

27 73 3 3 3 3 3 97 673 2 , 030 827 360 8.8 

28 6 4 3 3 3 3 3 177 673 2 , 000 869 360 9 . 2 

29 67 3 3 3 - 3 220 680 1,820 779 356 9 .8 

30 80 3 3 3 - 20 239 680 1 , 240 718 380 9 . 6 

31 H B - 3 3 - 25 - 688 - 811 388 -

Month Second- Maxlmwa Minimum Wean Runo rr in root-days acre-te e t 

Oc tobe r ..... . ... ..... .... .. ... ·· · · · · · ··· .. 3 , 768 248 48 122 7 , 470 

Novembe r .... . . ········ ·········· . . . . . . ... .. 504 . 3 eo 3 16.8 1 , 000 

December . ... ......... . . .... . . .. ... .. . ... . .. 93 3 3 3 . 0 184 

-- ----- ------ ------ ------ --- --- Cal endar yea r 1940 ... ............... .. 43 53. ~ 1 ,:no 3 120 86 , 980 

------- ----- ------ ------ ------ January ..... . . . ...... . ....•..•.. •·······•· 93 3 3 3 . 0 18 4 

February . . . ........•. . •.•..•.. . .••.•....•.. 8 4 3 3 3 -0 167 

Ma rch ........• . . •....•. . •.......•..•. ·· .• ·· 132 25 3 4 . 3 262 

April ....... . • . .•..•..•....•..•. ••. •.. 1 , 792 239 27 59 . ? 3 , 550 

llay . .........•..• . ...•. . •.. . ....•..• . .• ::: : 13 , 892. 5 1 , 310 3.3 448 27 , 560 

June .... . .. . ....• ... .••. . .. •..•.••.•.. •. •. . ~3 53 7 2 ,480 l4 1 , 118 66 , 520 

July ........... . • ... . ...... ......... .... . . . 29 , 852 1 , 430 577 963 59 , 210 

August .. ....... .. ... ····· ······ · ... ... .. ... 16 , 462 811 268 532 ~2,690 

September .. .. .. . . . . . . . . . . . . . . . .... .. .. .. . . . 4, 532 .4 384 ? , 6 151 8 , 990 

Wa ter year 1940- 41 ....... ... ............ 104,762 . 2 2 ,480 3 287 207, 800 

• Hi nte r d h chargo moaaurement made on thl a day. 

~te.ge lach ge re l ati on atteoted by lee Oct . 28 to Mar . 31 (no gage - he i ght re cord Nov . 10 

to Ma r. 31 ) . 
160 RIO GRANDE BASIN 

Rio Grande at Wason, below Creede, Colo . 

Location .- Water-stage recorder, lat. 37 °49 ' , long. 106°53' , In NEi sec . 8 , T. 41 N., R 

1 E. , at Wason, lt m1les downstream !rom Willow creek and 3 m1les southeast ot Creede. 

Drainage area .- 7CY5 square m1les. 

Records ava!lable .- Apr1l 1907 to September 1913 and October 1933 to September 1941 In 

reports or oeolog!cal Survey. Apr!l 1907 to September 1941 In reports ot State engi- neer. 

Averaf!e discharge.- 34 ye s, 636 second- teet . 

Extremes.- Maximum discharge during year, 5 , 200 s econd-teet Jun e 19 (gage height, 5 . 00 r est)· m1nirnlml dally, 48 second-rest Feb . 2 . 1967-41 : Maxinrum discharge , 9 , 750 s econd-teat June 28, 1927 (gage height, 7 .65 teet}; 

llll nlmlml not determined . 

Remarks.- Records good except thoRe tor period of lee street, wh!ch are talr . Dl vers!ons 

----a1iO'Vii station tor irrigation . Flow regulated by three r eservoirs (total capac! ty , 117, 600 acre-tee t} . 

Oiaobarge. 1n second-feel. wate r year Oc t ober 1940 to Septeaber 1941 

~ Oct . Nov . Dec . Jan . Feb . War. Ap r. ~ June July Aug . Sept . 

1 &35 172 75 52 51 107 226 740 1,990 2,600 1 , 500 748 

2 483 186 74 51 48 68 165 765 1 , 990 2 ,550 1,430 710 

3 415 204 74 4165 82 92 166 695 1,530 2 , 620 1 ,4.10 608 

.. 385 207 *'74 72 65 93 188 639 1 , 500 2 ,700 1,!510 5 4e 

5 427 151 76 77 es 66 201 663 1.,470 3 , 220 1,290 523 

6 868 175 60 77 90 95 166 1 , 080 1,460 2,780 1,410 523 

7 535 194 60 65 93 97 157 1 , 220 1 ., 6 40 2,600 1 , 610 560 

6 457 166 78 68 95 90 169 1,090 1,710 2 , 250 1 , 730 568 

9 427 188 78 93 90 97 178 1,120 1,490 2 ,070 1 ,880 481 

10 390 142 78 95 95 92 '94 1,350 1,390 2,140 1 , 6 40 457 

11 352 70 63 97 111 105 175 1 ,700 1 ,400 

:~ 1 ,670 360 12 329 86 60 92 105 93 168 2 ,120 1 ,420 1 ,430 295 

13 312 77 52 8e 109 101 182 2 ,990 1 , 520 2,220 1,310 307 

14 299 • 90 70 86 105 68 18 2 2 , 670 1 , 700 1 ,940 1,210 405 

15 278 107 90 85 101 68 194 2 , 100 1 , 950 1,610 1 , 250 347 

16 262 99 97 81 68 95 201 1 .. 840 2 , 260 1 ,470 1,330 329 17 250 92 91 80 99 99 198 1 ,910 3 , 270 1,480 1,360 324 

18 236 86 57 60 ~ 95 191 2 ,100 4,360 1,610 1,380 390 19 224 75 58 77 85 9'1 191 2 ,120 4,860 1,6 40 1,310 499 20 221 72 62 *'71 88 101 204 2 ,100 4,6~ 1,710 1,220 652 

21 224 71 72 68 92 111 218 no 4,560 1,590 1,130 80S 

22 221 101 77 65 97 107 211 2,600 4,560 1,430 1 ,030 6.6 

23 21.8 77 81 58 103 106 207 2 , 530 4,6SX> 1,380 936 847 

24 211 71 60 57 96 101 221 2,620 4,830 1,450 600 611 

25 207 77 72 57 86 86 242 2,840 4,440 1 , 490 80S 451 

26 204 71 72 56 93 95 266 2 ,770 4, 210 1,4~ 863 400 

27 246 67 66 58 88 103 312 2 ,450 4,0'10 1,430 847 366 

28 194 101 85 58 93 105 499 2,260 3 ,040 1,420 831 342 

29 214 99 92 63 - 111 626 2 ,100 3,630 1,370 823 433 

30 221 81 67 63 - 103 718 2,020 2,820 1, 4~0 770 469 

31 194 - 56 52 - 111 - 1,040 - 1,450 762 -

Month Second- llax111Ua lllini.u. .. an Runoff 1.n root-daya aore-teet 

October .. .. . . . . . . . . . .... . ... . ... ..... . . . ... 9,821 688 194 .:U7 10,t.SO Novembe r ... ... . . ... ... ..... ..... ...... ..... 3 ,470 207 67 116 6,900 December . . ... ..... . . .............. ... .... .. 2 , 300 97 52 74.6 ------- ------ ------ --- --- --- ~~ ~ Calendar year 1940 . . .. . •..• . ... . .. . ..• . 106,800 1 ,860 52 292 211,800 ------- --- --- -- ---- ------ ------ January .. . . . ... . . . . .... . . . ........ . ..... . . 2,247 97 51 72.5 4,t&O February . .. . ... .. . . ... ...... . .. ....... .. .. 2,501 111 46 e9.3 4,900 March . ...... . .... . • . ........ . .. .... .... .... 3,034 111 85 9'1.9 6,020 

April. . ........ . . . . . .......... . ........ .. .. 7,280 718 157 243 14 , ... 40 llay . .. . ... .. . .. •. . • . . • ..... ..• . . . ... . • ..•.. 68 , 072 2,9~ 740 1,873 116,200 June . . . .. ... .......... .. ........ ........... 85,290 4,850 :5~ 2,843 169,200 July . ... . . ...... .. ...... .... ...... ......... 159 ,430 3 , 220 1,370 1 , 917 117 ,QOO 

August . ····· ······ ... ............. .. ..... .. 37 , 972 1 ,730 762 1, 225 76,:520 Septe•ber . ... . . .. . . . . . ...... ........ ....... 1 4,846 847 295 495 20,460 

Water year 1940-41 ........ ···· ··· . ... . . 286 , 281 4,850 48 784 567 900 

* ii lntor d.hoharge measurement mad.e on thi s day . !.2!!:..- Stage-dhchargo re l a tion atroeted by lee Hov. 11 to Peb. 17 
RIO OIW'IDE BASIN 161 

ruo Grande near Del Norte , Colo . 

Locat ion.- Water-stage recor<!er, lat. 37°1\l ' l ong . 106 °26 ', near east llne or sec . 30, T. •:0 N., R. 5 E., 5 ml l es npst rean ! r om Pi nos Cr eek and 6 miles west of Del Norte . Datum or gage Is 7, 962.21 fe et abov e mean sea level , datum or 1929 . 

Drainage area .- 1, 320 square miles. 

Records available.- July 1669 to November 1906 (at sl te 4 ml les downstream ), April 1900 t o s eptember 1913 and Oc tober 1933 to Sept ember 1941 In repor t s or Geological sur vey . July 1669 t o September 1906 and April 1906 ~o September 1941 In r epor t s or State engi- neer. May to September 1907 (a t s i te 4 ml l es downst r eam ), unpublished, In til es of 

State engineer. 

Average discharge .- 52 years , 961 s econd-teet . 

Extremes.- Maximum discharge during year, 7 , 960 second-teet June 19 (gage hei ght, 5 .56 reetl i mlnlmum dally , 117 s econd- fe e t Nov . 26 . ·' ltltl!l--1941: Maximum dlscha:-ge , 16 , 000 second- tee t Oct . 5 , 1911 (gage he i ght, 6 .60 

teet), !ran rating curve extended above 6 , 000 second-feet; ml nlmum daay, 90 se::o nd- r ee t Dec. 3, 1934. 

Remarks.- Records excellent excep t those ! or peri ods or I ce ertect, wh ich a r e !air . Small 

----arveFslons above Rtatlon t or Irrigation . Flow r egula ted by three oo ln res el'vo lrs 

(total capa c ! ty, 117,600 a cr e- t eet) and s everal rnnalle r ones . 

01echarce . in s econd-teet, water year October 1940 to September 1941 

011.,) Oot . 

1 682 

2 604 3 656 

4 ISO:! ~ M3 

6 1 , 100 7 ~ 

8 711 9 6~ 

10 5i10 

11 5 43 12 497 13 466 14 U7 

16 417 

16 400 17 378 18 367 

19 3 42 20 332 

21 322 22 327 

23 327 24 327 25 313 

26 304 27 367 28 337 

29 304 30 318 31 318 

Nov . 

270 

2111 

274 287 

2U 

229 

249 

2 40 

2U 

240 

159 168 

137 

• 137 

159 

170 

149 

140 

154 

178 

118 144 

170 

149 

133 

117 

168 

16 4 

158 

135 

Dec . 

141 

140 

141 

• 150 

150 

160 

164 

160 

1 6 4 

164 

170 

174 170 

165 

160 

160 

•150 

168 

170 

168 

170 

174 

178 

182 

1i10 

192 

188 

185 

185 

1i10 

193 

Month 

Jan . 

185 

174 

ol40 

160 

1 60 

155 

160 

160 

160 

166 

170 

170 

175 

170 

160 

145 

160 

160 

160 

•156 

165 

160 

155 

1 50 

160 

155 

156 

156 

160 

165 

160 

Feb . 

156 

150 

• 14 6 

148 

160 

150 

160 

152 

164 

156 

160 

166 

166 

168 

168 

170 

166 

•162 

163 

160 

165 

165 

162 

165 

168 

165 

165 

168 

October . . . . . . .. . . . . . . . . ... .. ..•.. . .. . . ... . . Noveab<er . . . . . .. . ...... ... .....•.. . . . . . . ... . Decellber . .... . .. .. . ... ..... .. . . . . ... 0 • • •••• 

Ca1end.ar year 1940 . .. . .. . . ....•......... 

War . 

172 

178 

175 

• 176 

180 

180 

185 

1i10 

186 

180 

175 

170 

170 

180 

1 i10 

210 

240 

260 

•280 

300 

315 

295 

296 

280 

250 

225 210 

21 5 

218 

222 

234 

Secondroot-days 

14 ~2 

5 , 615 5 , 1Q6 

157,501 

Apr . 

•338 

331 

340 

338 

380 

3211 

308 

308 

332 

386 

366 

362 

368 

366 

38 0 

404 

uo 

380 

360 

344 

374 

368 

362 

362 

398 

446 

540 

706 

g38 

1,180 

llay 

1 , 280 1 , 290 1,590 

1,520 1 ,460 

1,980 

2 ,370 2,410 

2 ,640 020 

3 , 580 4,320 

5 , 600 5 , 810 5,170 

4,520 

4,630 

4,980 

4,820 

4,260 

4,180 4,490 

4,430 

4,560 

4,960 

5,._240 

4,960 4,820 

4,490 

4,220 

4,010 

1 , 100 

287 

193 

2 , 590 

June 

4, 110 

4 , 110 3 ,860 3 , 780 

3, 700 

3 , 6 20 3 , 950 4,410 

3 ,i100 

3,480 

3,290 

3 , 190 3 , 190 

3,380 

3,680 

4 , 070 

5, 0 30 6,380 

7 , 590 7 , 6 20 

7 , 360 7 , 280 7,360 

7 , 510 7 ,oro 

6,670 

6 , 280 6,060 

5 ,440 

4,760 

304 

117 

140 

112 

July 

4, 110 3,990 3 , 970 

4, 010 4 , 710 

4 , 240 

3,800 3 , 680 3 , 290 

3, 250 

3, 250 3 ,340 3, 290 

2 , 970 2 , 550 

2 ,260 

2 , 260 

2 , 520 2 , 430 2 , 570 

2 , 370 2 , 140 

2 , 030 2 , 100 2 ,100 

2 , 050 

1,940 

1 ,890 

1 , 770 1 , 770 1,740 

Aug . 

1,810 

1 , 690 1,660 1 , 530 1,450 

1 , 630 

1 , 6 l0 2 , 080 2 , 030 

1,980 

1 ,890 

1,740 

1 , 620 

1,490 

1 , 690 

1,590 

1 ,600 1,630 

1 , 530 1,390 

1 , 3 40 1 , 210 1 , 120 

960 

894 

949 

927 

894 

905 

883 

861 

Sept. 

834 

826 

762 

682 650 

642 

666 

698 

650 

596 

554 

470 

440 

642 

596 

519 

505 

554 

690 

810 

1,220 

834 

1,210 

894 746 

666 

610 

568 

666 

834 

lie an Runcrr in ac r~t_eet 

469 

184 

168 

430 

28,820 

10 , 940 

10,310 

312 ,400 

January . . . .... .. . . . .. . . . .. . . . . . . .. . . . . . .. . . 4,914 186 140 159 9 , 750 February . .. .... . . o• . .. •. .• . . . •• . . o . . . . . . . . . 4,479 170 145 160 8 , 880 March .. . . . ....... . .......... , . .. . .. . o. . . . . . 6, 734 315 170 217 13,360 

April .. .. .. ... o .......... o ..... .. .. . o .. .... 12 , 771 1,180 308 426 25 , 330 llay . . . . . .... ..... . . . .. ... . ........ . . ... .... 117 ,630 5 ,810 1 , 280 3,795 233 , 300 J une . . . . . . . . . . .............. . ........ . . . .. . 152,110 7 , 620 3 , 1go 5 , 070 301 , 700 July .. ... . ........ .. ............ .. ...... .. . 88 , 390 4,710 1,740 2 , 861 175 , 300 

~~~:!be~ .. :: .. :: :: :: i::: :: :::::::::::::::: ~~ ~; ~~ ::~ ;~i ~;~~ ~--~--~-- -4------~------+---~- Water year 1940-41 . . .. . .. .. .... . . . ..... . 478 , 108 7 , 6 20 117 1 , 310 948 , 300 

* .Winter dJ.acbarge JMaaurement made on th1a day. Rote.- Stage - dhcbarge relation affected by l ee Mov. 12 t o Mar. 31, Apr. 2-4 (no ga.ge-hetght record 

Do c . 1 to Mar . 28 , Apr. 2-4) . 
162 RIO ORANDE BASIN 

Rio Grande near l'tlnte VIsta , Colo . 

Location .- Water-stage recorder, lat. 37°37 ', long. 106 °09 ' , at west line or sec . 19, T. 39 N. , R. 8 E. , 2 miles north or Monte VIsta . Datum or gage Is 7 , 654 . 54 rest above mean s ea level, datum or 1929 . 

Drainage area .- 1,590 square miles (revised) . 

Records av ll" ble.- October 1933 to September 1941 ln reports or Geological Survey (no winter records l n earl ier years) . May 1926 to September 1941 ln repcrts or State engineer. 

Extremes.- Max imum d ischarge during year, 5 , 240 second- rest June 25 (gage height, 6 .22 

feet)· l:~lmum dally, 9 . 5 second- feet Apr. 24 . 1926 - 41: Maximum d is charge , 18 ,500 second-rest June 30 , 1927 (gage helgllt, 7 .85 rest) ; mlnlmum dally, 4 second-rest Apr. 18, 1926 . 

~ 

Remarks.- Records excellent except thos e ror July l to Sept . 30 , v.l1lch are good , and ror peri od or Ice ertect, whlch are ralr. Many diversions ror lrrlgatlon above st ation. Flow regulated by three main reservoirs (total capacity, 117 ,600 acre- reet) 

and several srr~ller ones. 

Discha rge , i n s econd-teet . water yea r Oc t ober 1940 to Septembe r 1941 

D&.l Oc t. Nov . Dec.· J an . Feb. War . Apr . llay June J u l y Aug . Sept . 

1 65 41 217 204 165 178 108 41 ~ 2 ,160 3 , 010 444 35 

2 35 26 220 195 160 182 111 ~9 2 , 080 2 , 510 ~92 26 

3 32 18 217 180 155 182 74 6 46 1 , 960 2 ,440 318 24 

4 31 15 213 170 157 182 36 560 1 , 730 2 , 400 232 26 

5 26 31 219 168 160 182 3 4 281 1,600 2 , 670 140 26 

6 104 28 219 170 160 188 26 439 1 , 500 2 , 850 8 4 15 7 148 22 219 175 160 195 15 764 1 , 670 2 , 060 151 19 8 69 21 208 175 160 210 12 968 2 , 500 1 , 660 309 38 9 42 17 191 172 165 206 12 1 , 060 2 , 620 1 , 500 613 9~ 

10 51 22 193 175 165 192 15 1 , 220 2 , 180 1 , 140 560 106 

11 28 31 202 182 170 206 23 1 , 710 1 , 970 1 , 060 49 4 80 12 23 69 219 182 172 210 19 2 , 330 1 , 790 1 , 500 397 80 13 21 • 123 215 181 1 72 206 15 3 , 210 1 , 680 1,580 326 78 14 26 140 209 180 172 185 12 3 , 860 1 , 770 1 , 340 232 80 15 34 162 200 175 175 192 12 3 , 670 1 , 960 1 , 020 344 159 

16 30 178 195 164 177 202 12 2 , 850 2 , 240 715 354 78 17 40 217 •184 160 175 199 11 2 , 600 2 , 850 500 413 51 18 40 210 187 160 172 213 11 2 , 840 3 , 940 556 434 64 19 3 4 195 187 160 •167 •192 19. 2 , 860 4 , 760 575 382 67 20 26 185 185 170 170 185 13 2 , 260 5 , 130 667 309 111 

21 19 182 187 170 170 192 11 1 , 870 5 , 080 607 258 478 

22 16 172 195 165 172 178 13 1 , 960 4 , 950 402 199 455 23 18 172 205 165 172 188 18 2 , 500 4 , 890 318 143 506 24 21 210 210 • 1 55 172 178 9. 5 2 , 510 4 , 9 30 363 108 562 25 28 210 21 5 158 172 133 12 2 , 860 5 , 210 556 65 289 

26 30 188 215 159 170 111 15 3 .310 5 , 060 653 43 217 27 25 182 213 160 1 70 111 12 3 , 280 4 , 860 5 43 44 185 28 26 185 208 160 175 120 31 3 , 100 4,700 512 36 182 29 19 210 208 165 - 116 125 2 , 790 4 , 440 382 36 266 30 49 224 211 170 - 10 4 296 3 , 040 3 , 890 413 42 556 31 44 - 215 165 - 99 - 2 , 160 - 413 40 -

Wonth Sec ond- Waxi.mum Wini mum Wean Runo rr in root-days ac re-t eet 

Octobe r ... . . . . . . ~ . ....... . ~ . . . ...... . . . ... 1 , 201 148 16 38 . 7 2 ,380 November .. .... .. ··· ········ ··· ······ . .. 3 , 686 224 15 123 7 ,310 Decembe r .. ......... ... .. .... • • • • • • • • • - 0 • . .. 6 , 381 220 184 20 6 12 , 660 ------ -- - -- ------ ------ Calenda r year 1940 . .. ..... ... . . ... ···· · · 55 , 269 9 40 8 151 109 , 600 ------- --- - - ------ ------ ------ Janua ry . . . . ··········· ··· .... ... . . . . . .. . . .. 5 , 290 204 155 171 10 ,4 90 February ... ..... ........... ................ 4 , 702 177 155 168 9,330 Ma rch . .... ..... ........... ·•· . .. ... . . . . . .. . 5 ,417 213 99 175 10 , 740 Ap ril. ... . . . .... ... ... .................. ... 1 , 132 . 5 296 9 . 5 37 . 8 2 , 250 Way . ...... ....... ............ ... . ... ...... 6 4, 370 3 , 860 281 2 , 076 127, 700 J une .......... .. ........... o •• o • • •• • ••••• • • 96 , 070 5 , 210 1 , 500 3 , 202 190 , 600 July . . . . ........ • .... ... .......... ....... .. 36 , 515 3 , 010 318 1 , 178 72 ~ 

August .. ......... . ... ... ........... ... .... 7 , 9 32 613 36 256 15 , 730 Septembe r . . . ... .. .... .. .. .... .... . ........ 4, 942 562 15 16 5 9 , 800 

Wa ter year 19 40 -41 . . .. . . .. .. .... . . ... .. 237 , 638 . 5 5 , 210 9 . 5 651 471 400 

..W inter dlscharge me aeu.rement made on t hie de y . Iota. - St a p;e-dleche rge relation at t oe ted by i c e Ho v . 5 to liar. 5 (no gage - he ight record De c . 5 - 17 , Jan:-n-to Fob . 19) . 
RIO GRANDE BASIN 163 

Rio Grande at Alamosa , Colo . 

Location. Water-stage recorder, lat . 3?0 29 ', long . 105°53 ' , in SEt sec . 4, T. 3? 1., R. 10 E., a quarter of a m!le northwe s or Alanosa and ? m!les upstream from Al!ll'losa Creek . Datum or gage ls 7 , 533 .66 rest above mean sea level , datum or 1929. 

Dr ainage area .- 1, 710 square miles (revised} . 

Recor ds avaaable . May 1912 to September l!Jl3 and October 1933 to September 1941 in reports of Geol oglciil Scrvey. May 1912 to September 1941 in repor tA or Sta e engine er. 

Average discharge .- 29 years , 331 second- t eet. 

Extremes.- l1aximum discharge during year, 4 , 910 second-teet June 26 (gage height, ? .81 

f eet); m1n1mum dally , 3 .4 second- teet Nov . 13. 1912-41: Maximum discharge , 14, 000 second- f eet July 1, 1927 (gage height , 8 .37 

feet}; mt n!mum dally, 2 second-feet Oct . 24-29, 1933. 

Remarks.- Recor ds f ir. Many diversions a bove st ation !or irrigation . Duri ng irrigation s eason , low-water ! low Is water returned !rom i r rigated lands above station . 

Discharge , in second-teet. water year Oc tober 1940 to September 1941 

Da Oct . Nov . Dec . Jan. Feb . Yar . Apr. May June July Aug . Sept. 

1 19 s.o 190 173 38 1,320 2 , 850 46 34 2 21 5 . 0 200 154 e9 1 , 270 2 , 100 .. 33 3 19 4. 2 210 161 103 1 , 170 "1 , 650 45 32 4 17 4.2 240 1U 180 1, 060 1 , 600 46 28 5 17 5 . 8 245 110 186 854 1 , 860 49 27 

6 17 6 . 0 H2 8 7 101 722 2 , 280 51 26 7 17 5 . 0 242 78 118 625 2, 490 44 26 8 16 4 . 2 242 72 334 8 63 1 , 9 10 49 26 9 16 4. 2 246 68 436 1, 500 1 , 440 57 25 10 15 4 . 2 250 64 523 1 , 700 904 92 25 

ll 15 4 . 2 252 63 701 1 ,430 684 75 27 12 15 3 , 8 262 59 1 , 050 1 , 180 632 66 28 13 15 • 3 . 4 272 59 1, 3:SO 1 , 050 836 59 26 14 16 3.8 285 54 1 , 750 940 8 45 56 27 15 16 26 300 51 2 , 680 1, 040 648 54 26 150 165 170 16 15 32 3 20 48 2,750 1 , 080 475 6 4 27 17 e . l u 346 45 2, 110 1 , 230 330 76 26 18 8 . 1 50 36S H 1 , 730 1 , 5eO 246 58 25 19 8 . 1 58 •362 43 1 , 730 2, 210 206 52 26 20 7 .3 52 282 43 1,710 3, 490 162 49 26 

21 6 . 5 65 (• ) 285 36 1 , 250 4 , 520 lH 51 25 22 6 . 0 70 300 32 935 4, 730 127 48 35 23 4. 2 80 313 31 1, 120 4 , 560 107 45 48 24 4 . 2 110 (• ) 309 30 1, 380 1 , 390 89 43 136 25 3.8 154 C•l 294 30 l, 450 4, 520 80 42 1S1 

26 3.8 168 256 29 1 , 730 4, 8r/O 72 41 ll3 27 4. 2 152 228 29 2, 100 4 , 710 63 40 72 28 6 . 8 148 217 29 2, 260 4, 320 53 39 54 Z9 5 . 8 142 215 2S 2 , 180 4, 010 53 38 57 30 5 . 0 142 20S 29 1 , 900 3 , 600 52 36 161 31 5.0 195 1,570 50 35 

Month Second- Maximum Minimum Mean Runorr in root~ays acre-reet 

Oc tober. ······ ··· ··· ····· . ........... 349 . 9 21 3 . 8 11. 3 694 

Novembe r .. ....... . . . . . ... . .. ...... ... .. 1 , 552 . 0 158 3 . 4 51 . 7 :s, oeo December .. . . . . . . . . . . . . . 4, 960 160 9 , 8 ,0 

-- ----- Calendar year 19 40 . . .. . •..•.... 24, 884 . 8 300 3.4 70 . 7 51,3'0 

~------ - ------ January . . . . . . . ... .. 5 , 115 165 10 , 150 

Febru.ary .... . ,.,, o o o .... o .......•..... .. .. 1,760 170 9,440 

March .. ........... o .... ·•·········· 8, 176 368 190 264 16 , 220 

April .... . .. . •..•.• •. ••.• . ....•.••. •... ... . 1 , 917 173 2S 6 . 39 3,800 

Ma.y . ... . .......... . ..•..................... 37 , 524 2, 750 38 1 , 210 74,430 

June ..... ··••o•········ ·· ···o ······ ······ 70 ,534 4, 870 626 2, 361 139, 900 

J uly .... ..... .......................... ..... 26 , 038 2, 850 50 808 49,660 

August . . ............ . . ... o ... . ........ 1. ,689 92 35 51 . 3 3, 150 

Septembe r .................... 1, 426 181 25 47 . s 2 , 8 30 

Water year 19 40-41 ..... .............. .. . 162 , 9 40 o9 4, 870 3 •• 446 323, 200 

ifWl ntor dhohargo measurement made on tb1a daJ . Stage-discharge relation a.rteoted by loe Nov. 16 to liar. 19. 
164 RIO GRANDE: BABIN 

Rio Grande above mouth or Trinchera Creek, near La Sauaes, Colo. 

Locat:on.- Water-stage recorder, lat. 39°19', long. 105°45', In sec. 35, T. 36 N., R. 11 

E: . , a quar ter or a mlle upstream rrom Trinchera Creek and 5 miles north or La Sausee. 

Records available.- May 1936 to September 1941. 

Drainage area .- 5, 740 square miles (Includes 2 , 940 square miles In closed basin). 

Extremes.- Maximum discharge during year, 4,740 second-teet June 26 (gage height, 6.77 t eet), rrom rating curve extended above 4 ,000 second-teet; minimum dally, 13 second- rest Nov . 9 . 1936-41: Maximum discharge , that or JWle 26, 1941; mi nimum dally, 0.4 second-toot 

July 4, 1940 . 

Remarks.- Records good except those tor period or lee street, which are ralr. Storage ----anaBeveral di versions above station tor Irrigation. During Irrigation season, low now !s water returned !rom Irrigated lands above s tation. 

Discharge. in second-teet, water year October 1940 to Septeaber lOU 

D~ Oct. Nov . Doc . Jan . Fob . Yar. A.pr . llay June July Au, . S.pt . 

l 17 16 (• ) 2&0 368 180 9,120 3,920 175 104 

2 20 16 270 S18 269 1,8~ 3,320 169 102 

3 28 15 280 ~6 355 1,790 2,'80 U8 100 4 36 H (• ) 300 290 410 1,780 2,010 114 ~ 

5 31 18 310 270 504 l ,6g() 1,930 114 91 

6 65 14 305 248 495 l,:SQO 1,9'70 n 83 

7 28 14 300 226 4&8 1,280 2,260 M 75 

8 23 14 300 206 572 1 , 330 2,2&0 81 70 

9 22 13 300 187 au 1,720 1,880 79 6& 

10 20 15 ~5 176 910 2,110 1,420 1116 .. 11 20 16 295 174 1,0{6 ~.no 1,1~9 179 .. 12 20 19 300 16:5 1,~0 1,880 965 i:t &8 

13 19 20 310 167 1,920 1,710 1146 70 

14 19 20 320 161 2,:520 1,550 1 , 110 128 80 

15 19 22 •330 161 2,770 1,,30 1,020 117 81 170 185 210 

16 19 e. 366 143 3,280 1,530 VOl! lll 79 

17 18 62 400 131 :5,:570 1,6&0 777 180 9'1 

18 18 66 440 112 2,830 1,780 M6 1.a 79 

19 17 66 470 112 2,510 2,040 641 128 7ll 

20 16 66 460 116 2,600 2,670 496 168 77 

21 1 6 72 460 112 2,680 3 , 220 426 143 61 

22 15 82 462 114 1,930 3,780 4.a 162 93 

23 16 HO 474 116 1,710 4,280 402 1611 171 

24 15 170 46 6 108 1,890 4,370 368 1411 188 

25 16 •164 (•) 486 1 05 2,020 4,340 318 128 SlO 

26 16 165 495 106 2,120 4,420 298 117 S1S 

27 15 164 492 99 2,350 4,650 265 110 242 

28 16 166 468 lOB 2,680 4,680 266 1ll 188 

29 16 166 442 117 2,880 4,480 228 108 . 209 

30 16 150 416 129 2,770 4,240 206 111 220 

31 15 365 2,460 194 107 

Month Second- llaxbua Miniau.. lie an Runoff 1D toot-days aof'6-teet 

Oot~er .... . ....... . ... . ... .. .•. . . . . . . . . . . . 631 65 15 20.4 1,250 November ...... . ............•.. . .... . . .. ... 2 , 015 166 1~ 67.2 4,000 

December .... . . . . . ....... . . ............ ... . . 5,270 170 10,4&0 

-- ----- Calendar year 1940 .... 27,177 . 5 345 .4 74.~ &3,900 ----- -- J&nuary . ................... , .. . . . . 5,735 186 11 ,380 

February .. .... . .... . .. . .... . .. . . . . . . . . . . . . . 6 ,880 210 11,660 March ....... .. . . . .. , .. • ......... . . . . . . . . . . . u ,eae 495 260 ~77 23,180 

April ... . .. .. . .....•..•... .... ....... .... 6,116 368 99 171 10,150 

llay . . . . . . .. ........... ..... .. .... 6<1,167 3,370 180 1 , 747 10'7,400 June ...............•.......•.......•. . ..... 77 ,580 4,680 1,280 2,686 153,1i00 

July .. . . .......... .•....... • .... . . .. ..... . . ~5,3~ 3 ,920 194 1,140 70,070 

August ... .. . . . . .. ... . . . ... . •.. • ... . •... 3,917 179 79 ~26 7,770 

September . ........ .. ...... .. .. . ... 3,&M ~13 64 121 7 , 210 

Wat.er year 19-i0-41 .. . .. ... . . ..... . . . . .. 210,952 4,680 13 578 418,400 

• Winter discharge za.oaauroment made on th.ia day . 

~- Stage-d.heharge relation atreoted by ice lo .... 17 to Kar . 19 (no gage-be1A}lt reooN). 
. ,. 

·,· 

RIO GRANDE BASIN 165 

Rio Grande near Lobatos, Colo. 

Loca tion.- Water-stage recorder, lat. 37°05' , long. 105°45', In sec. 22, T. 33 N., R. ll 

E., 6 miles north ot Colorado-New Mexico State l ine, 7 miles downstream from Culebra 

Creek, and 10 miles east or Lobatos. Datum or gags Is 7,426 . 79 test above mean sea lev~ , datum or 1929 . 

Dra1na.gs area .- 7 , 700 square miles (Includes 2,940 square miles In closed basin). 

Re cords available.- J une 1699 to September 1913 and October 1933 to September 1941 In 

repo rts or Geological Survey. June 1699 to September 1941 In reports ot State engineer. 

Average discharge.- 42 years, '?52 second-teet. 

Extremes.- Maxi mum di scharge during year, 6,090 second-teet May 16 (gage height, 6 .63 t eet}; minimum daily, 36 second-teet Oct. l. 1699-1941: Maximum dally discharge, 13,100 second-teet June 6, 1905, from rating curve extended above 6, 000 second-teet; minimum daily, 5.0 second-teet Aug. 4, 1940. 

Remarks.- Records excellent except those tor period or Ice ettect, whi ch are fair. Many ---arvefs1ons above station tor Irrigation. Flow regulated by many reservoirs on head- waters. 

Di scharge , in s econd- teet, water year Oc tober 1940 to September 1941 

0., Oct . NOY . Dec . Jan . feb . Mar. Apr . llay June July Auc . Se pt. 

l 311 48 818& 2:50 220 305 537 480 4,390 5 , 660 247 u~ 

2 39 51 185 ~0 2.10 ~15 501 682 4, 100 4 , 910 2011 1~4 

3 41 48 180 210 205 340 447 928 3,960 3,940 188 1~4 

4 .. 49 180 • 200 200 ~eo HO 1 , 190 4,010 3 , 150 159 127 

5 66 42 185 195 • 200 410 421 1,390 sso 2,940 12~ 12~ 

6 66 49 190 200 195 *420 ~9 1,520 3,610 3,210 110 120 

7 ~ 51 195 200 200 400 ~64 1,840 3 , 270 3 , 680 0 116 

8 74 49 198 205 205 ~0 ~24 2,:no 3 , .SO 3 , 720 118 110 

9 68 *44 205 205 205 ~70 ~02 2,820 4,200 3 , 260 14 ~ 96 

10 81 .. 220 215 • 210 ~50 ~02 3,480 4 , 390 2, 750 130 9~ 

11 58 9 224 220 215 MO 31~ 1 3,930 4 , 090 2 , 14 0 21~ 9~ 

12 61 4 8 224 225 220 Ml ~13 1 4,540 3,560 1,970 22~ 96 

13 81 ee 220 230 220 380 309 5 , 440 3,150 1 , 980 204 108 

14 81 7l 210 2~0 220 414 ~ 6,360 2,790 2 , 050 172 120 

15 68 S5 195 225 220 *409 282 7,430 2 , 580 1,970 155 127 

16 el 79 200 • 220 225 480 276 7 ,890 2 , 620 1,800 151 12~ 

17 68 79 195 205 • 225 522 268 7,600 2,610 1 , 580 177 127 

18 68 85 200 200 225 588 232 6,610 2,850 1,370 22~ 1~ 

19 5& 79 220 195 240 619 2~7 6,140 ~.~oo 1 , 250 2011 116 

20 51 99 225 200 250 674 266 6,300 3 , 960 1 , 130 177 ll~ 

2 1 54 186 • 216 205 2&0 690 262 6 , 600 4 , 810 1 , 180 190 1~0 

22 58 215 200 210 270 698 247 4 , 540 5,420 1,120 18& 120 

23 54 220 210 210 280 69S 252 4 , 010 8 ,150 1 , 040 200 218 

24 4& 2~7 220 220 ~oo 7:50 247 3,940 :::~ 901 188 266 

25 44 241 225 215 ~10 ~0 23? 1 4 , 220 780 168 ~u 

26 48 2~ 215 205 ~15 765 2421 4,540 6~~ 682 151 414 

27 54 252 210 205 ~10 765 237 5 , 030 680 ~ ~53 

28 54 219 205 200 ~05 730 237 5,MO ~:c 494 ~ 282 

29 58 185 220 206 - 674 29~1 5,980 s,8ic 421 ~ 287 

30 51 181 225 205 - 611 ~59 5,610 &, 24C ~64 ~ ~16 

31 42 - 2~0 210 - 57~ - 4,960 - ~08 143 -

Month Second- lluiaa ltin iaua lloan Runorr a roo t-days ao re-teet 

Oc tober ..... . •.. . ............... .. . •. .. .... 1,713 9~ 3& 55 .~ 3 ,400 

Noveabe r ... . . . ................ . ..... . .... . . 3 , 368 262 39 112 6 , 680 

Oeoeabe r ....... . , ... .... .................. . 6 , 411 2:50 180 207 12 , 720 

------- ------ ------ ------ ------ Cal endar year 1940 ... . .................. 53 , 298 . 0 1 , 100 s.o H6 105, 700 

------- ------ ------ ------ ------ January .... .... . ..... . .....•.............. . 6,530 2~0 195 211 12 , 960 

February ....... . . . . . .......•..•....•....... 6, 680 ~15 195 2~ 13,210 

llaroh ...........•.. . ...... . •.. • . ..... ...... 16 , 049 755 ~05 518 31. , 830 

Ap ril . . ... .. .... • ..• . . . .......•.. 9,430 537 2~2 ~H 18 , 700 

!lay .. . . .... .. .•••..•.. . ....•..•... ::::::::: 132,810 7 , 890 460 4 , 284 263 , ,00 

June . .............. . .. . ....•....... . ....... 1~,110 7 , 180 2 , 680 4 , 470 266 , 000 

July . . . .........• . .• . ......•..•. . .. .... .... 62 , 220 5,650 ~08 2 , 007 123,400 

Aucuo t ......... .. ... . ......•.. • . ........... 5 , 233 247 no 169 10 ,~0 

Sopt .. bo r ......... ... . . ...... . •........ .... 5 , 066 414 9~ 169 1.0, 030 

Water 1••r 1 940..41 . . . . . . . . . . . . . . . . .... ~9 590 7 , 890 36 1 , 067 772 ,700 

• Winter 41ecbarp •••u.re .. nt •4• on thi a 4a,.- . ~- 8tage· ~H•cbarp rel ation affected by l oe Nov. 21 to J'tar. 11 • 
166 RIO GRANllE BASIN 

Rio Grande below Taos Junction Bridge , near Taos, N. Mex. 

Location.- Wa ter-stage recorder, lat . 36°19' , long . 105°46' , ln sec. 15 , T. 24 N., R. 11 E., 2 m!Ies downstream rrom Taos Creek and bridge on Taos-Taos Juncti on highway, and 12 

mlles s ou thwest or Taos. 

Dra lna~e area.- 9 , 730 square miles (includes 2 , 940 square miles ln closed basin ln northern 

par of San LUIS Valley, Colo .}. 

Records available .- October 1930 to September 1941 ln reports or Geological Survey. JulY 

1925 to December 1931 ln reports or State engineer . 

Average discharge .- 16 years (1925-41 }, 835 second-teet. 

Extr emes .- Maximum discharge during year, 9 , 630 second-f eet ~Y 17 (gage height, 9 .41 t eet }; 

min imum dally, 233 second-teet Nov. 13 . 1930-41 : Maximum discharge , that or May 17, 1941; mlnlmum dally, 140 second-teet 

(estimated} Aug. 21 , 1931. 

Flood or July 4, 1927, reached a stage or 11.0 t eet (discharge, 8 , 700 second-teet} . 

Remarks.- Records good . Diversions above station t or Irrigation. 

Dischar&e . in second-feet, water year October 1940 to September 1941 

Day Oct . No·v . Dec . Jao . Feb . War . Apr . llay June July Aug . Sepl. 

1 251 256 401 5~2 464 5~ 910 900 6,520 7 , 150 704 ~95 

2 238 251 395 518 464 560 840 1, 190 6,110 6, 520 600 395 

3 242 251 419 • 490 464 592 801 ,~0 5 , 710 5 , 510 5U 389 

4 246 260 432 b410 444 592 738 2,0W 5 , 710 4, 570 490 ~71 

5 246 256 451 b410 444 646 774 2,420 5 , 710 4 , 120 456 ~71 

6 260 251 451 b450 ••• 668 696 2 , 640 5 , 510 4 ,120 425 365 

7 260 256 451 419 464 720 664 3 , 030 6,1~0 4,480 413 365 

8 265 265 444 ~90 4 56 696 640 3 , 600 6,130 4,750 477 371 

9 290 265 451 b400 464 680 600 4 ,480 5 , 510 4 , 480 470 365 

10 275 270 464 b~90 48 4 648 592 5 , 130 6,110 4,030 477 ~54 

ll 265 260 490 413 470 616 564 5 , 710 5 ,910 600 438 348 

12 260 246 511 438 48 4 616 600 6 , 620 ~20 3 , 110 497 348 

13 260 233 532 438 497 616 680 7,580 4,940 2 , 950 560 354 

14 260 238 504 444 525 616 656 e ,470 4, 210 ~0 5~ 354 

15 260 251 490 456 560 624 664 9 , 160 4 , 120 3 , 0 30 504 ~71 

16 260 275 4:;8 4~2 656 696 656 ,~0 4 , 030 2 , 720 484 377 

17 260 275 456 b420 668 774 646 9 , 390 4 , 0 30 2 , 500 477 ~71 

18 260 285 456 b410 640 8 40 664 8 , 9 30 4,120 2 ,270 504 ~71 

19 260 316 444 b420 672 900 640 8 ,470 4,390 2 , 020 518 389 

20 260 332 425 b440 656 a940 600 8 , 240 4 , 940 1 ,860 525 395 

21 256 290 432 464 656 1 , 000 616 7 , 800 5 , 910 1 ,760 497 ~95 

22 251 300 438 451 600 1 , 020 600 6, 940 6 , &20 1 , 820 497 389 

23 246 401 458 470 5~ 1 , 030 600 s,uo 7 ,360 1,710 484 432 

24 246 451 477 458 568 1 , 050 576 s,uo 8 , 020 1,620 <84 438 

25 246 451 490 470 600 1,130 568 6 ,110 8 ,240 1 , 430 477 525 

26 242 477 484 464 592 1 , 140 564 6,520 8 , 240 1 , 290 451 55~ 

27 246 464 470 464 568 1 , 140 648 6 ,940 8 , 240 1 , 200 4.25 672 

28 256 48 4 497 470 553 1 ,130 696 7 , 360 8 ,470 1 , 080 407 648 

29 251 464 497 470 - 1 , 080 720 7,800 8 , 240 960 395 704 

30 251 432 511 *470 - 1,010 774 7 , 800 7,800 840 401 648 

31 256 - 525 464 - 950 - 7 , 1&0 - 756 389 -

Month Second- WaximWD Winirau111 llean Runott in toot-days acre-feet 

October .... ...... .... . ... . . .. . .. . . . .. .. .... 7 , 92& 290 238 256 1&, 720 

Novecnber ... ... ....... ·· · · ····· ·· · · · ········ 9 , 506 484 233 ~17 18,850 

December .. ..... ..... .. . . . . . . . .. . . .. . ....... 14 , 408 532 395 465 28 , 680 

------ ------ -- - - - - - - -- ---- Calendar year 1940 . . . .. ......... ········ 139 , 695 1 , 630 202 382 277 ., 100 

-- - - - ------ ------ - - ---- January ......... · · ······ .... ..... . . . ... ..... 13 ., 837 532 390 446 27,450 February ....... ······ ·· · · ·· .... .... ........ 15, 140 688 444 541 30, 030 

March .............. . ..... . .......... .... ... 25 , 295 1,140 553 816 50,170 

Ap ril .......... . . .. ... . ••....... .......... 20,053 910 568 668 39 , 770 

May . ....... . . . . . . . . . . . . . . . ............ . .... 185 , 790 9 , 630 900 5 , 993 368 , 500 

June ..... ···· ·········· ···· ..... ....... .... 180 , 200 8 ,470 4, 030 6 , 007 357 ,400 

July . . ... ... ..... ......... .... ············· 91 , 286 7 , 150 756 2 , 945 181,100 

August .. ... .. . ... ..... ················ 15 ,01 4 704 389 484 29 , 780 

September . . .. .... .. ... ... ............. . .. 12 , 823 704 3 48 427 25 ,430 

Water year 1940 - 41 . . . ······· ..... ....... 591 ,277 9 , 630 2~3 1,620 L, l73,000 

• Winter discha rge measurement made on thh day . a No gage -height record; d1ach.arge computed on baals of weather recorda and. recorda tor station at rlnbudo . 

b Stage - d.hcbarge relation affected by lee . 
RIO GRAND£ BASIN 167 

Ri o Grande at E:mbudo, N. Mex . 

Location .- Wa te r-stage r ecorde r, lat. 36 °12 ', long . 105°57 ', In swt sec . 23 , T. 23 N., 

R. 9 E., a quarter or a mlle downstream rrom bridge at E:mbudo and about 2t mlles bel ow E:mbudo Creek . 

Dralna~e area .- 10 , 400 square m1les (Includes 2 (940 square miles In closed basi n In nor hern part or San Luis Valley In Colorado ,. 

Records available.- January 1889 to Decembe r 1903 , Sept embe r 1912 t o Sept ember 1916 and 

Oct ober 1930 t o September 1941 In reports or Geological Survey . Janua ry 1889 to December 1903 and Septembe r 1912 t o December 1931 In repo rts or State engineer. 

Average discharge .- 41 years (1889- 93, 1894-1903, 1912- 16 , 1917-41 ), 1 , 073 second-teet . 

E:xt r emes .- MaJc lmum dischar ge duri ng year, 12,000 second- teet May 16 (gage he i ght, 13.95 t eet) ; ml nlmum da lly, 252 second-teet Nov . 14 . 1889-1903 and 1912-1941 : Maximum discharge , 15, 900 second-teet J une 19 , 1903 (gage-he i ght, 15. 8 t eet) ; minimum dally, 35 second-teet Dec. 31 , 1903 . 

Remar kS .- Records good. Di ve rsions above station tor Irrigation. 

Discharge , in second- teet , water year October 1940 to Septeaber 1941 

Day Oc t. Nov . Dec . Jan . Feb. Mar. Apr . May June July Aug . Sept . 

1 W6 W6 440 MO 500 668 1,020 1 , :540 7 , 700 7,960 782 4M 

2 290 = 431 530 495 680 950 1,790 7 , 260 7 , 070 675 432 

3 282 29B 460 495 490 6H 920 2 , 070 6 , B20 6,090 591 41B 

4 294 W6 470 431 475 668 B60 2 , 390 6 , 710 5 , 010 567 410 

5 29B = 4B5 422 470 722 B60 2 , 570 6,9W 4,360 516 400 

6 322 29B 490 470 4BO 764 B60 2,930 6 , 600 4,230 4B5 392 

7 322 302 4B5 422 500 770 BOO :5,470 6 , 380 4,360 506 382 

8 322 302 475 41B 495 752 770 4 , 1:50 6,050 4:,490 e21 382 

9 350 302 480 422 490 7 40 746 5,130 e , 380 4,360 675 37{ 

10 368 30e 495 422 510 716 764 6,940 6,710 3, 990 645 364 

ll 359 2Be 520 445 510 680 764 6,600 6,490 3 , 610 579 360 

12 338 270 545 465 510 674 BOO 7,700 5 , 940 3,150 682 360 

13 32e 260 555 470 520 680 950 9 , 230 5,430 2 , 980 B59 360 

14 32e 252 545 450 5-'5 674 920 10,700 5,030 2,9BO 768 37{ 

15 326 2'70 406 480 e02 e74 890 11,600 4,630 2 , 930 701 400 

16 322 298 450 470 BOO 74e 890 11,700 4,430 2 ,760 e75 405 

17 31B 30e 4e5 440 BOO BOO 920 11,700 4 ,4:30 2,5-'0 e27 405 

1B 314 310 4BO 445 710 B60 950 11 , 200 4,530 2,270 701 4U 

19 310 359 460 460 770 920 890 10 ,600 4 ,830 2,120 651 423 

20 we 377 42e 460 752 950 BOO 10,100 5 ,400 1,970 639 511 

21 302 342 42e 486 7 28 1,020 800 9 ,710 6,2.:SO 1,970 e21 460 

22 290 318 440 470 728 1,060 770 8,870 7,210 1 , 920 597 470 

23 28~ 422 455 470 ee2 1 , 0 60 764 .. 7,500 8,110 1,820 573 555 

24 28e 490 500 470 6e2 1 ,090 74e a? ,400 9 ,160 1, 720 567 516 

25 290 505 525 485 674 1,120 752 a7 ,300 9 ,460 1,520 538 579 

26 28e 520 490 470 680 1 , 160 770 .. 7 , 700 9 ,:no 1,~90 50e 609 

27 290 525 480 470 6e2 1,120 B90 8,030 9 , 310 1 , 340 470 701 

28 322 515 515 4BO 5e2 1, 1 60 950 8,510 9 , 610 1,120 He 727 

29 we 530 510 490 - 1 , 120 1,020 8 , 990 9 ,310 1,020 43e 888 

30 314 490 525 495 - 1 ,090 1,090 8 ,990 B, 710 873 He B03 

31 310 . 540 500 - 1,060 - 8,270 - 845 43e -

Month Second- Muiau• Minicu. Me on Runott in root-days aore-teet 

October .. . .. ............ . . . . . ...... . . . . . ... 9,681 368 282 312 19,200 

November ... ... ... . ........ , ... . . ... ·• ·· · ··· 10,669 530 252 356 21,160 

Dec ember .. .. . . . ....... ... . . ....... ···· ·· . .. 15, 058 555 42e 48e 29 , 870 

- ------ ------ ------ ------ ------ Calendar year 1940 . . . . . . . . . . . . . ......... : 65,276 1,890 201 452 :527 , 8oo 

------ --- - - ----- --- - -- ----- - January . .................• . ................ 14,432 540 418 466 28,630 

February ... ...... . .. . . . .....•.............. 16 , 882 BOO 470 603 33,480 

March .........•.. ...........•..•.. , ........ 26 ,872 1 , 160 658 B67 53 ,300 

April ............ • .. •.. .....•..•.. • ..... ··· 26 ,876 1,090 74e 863 51,320 

ll&y . .............•..•.......•.. ............ 224: , 060 11 , 700 1,340 7 ,228 444,4:00 

June . ......................... ......... .... 205,100 9 ,610 4,430 6,837 406 , 800 

July .............•.. • .. .....• .. .... ... . .... 94 , 668 7,960 845 3 , 05-' 187 , 800 

August . ......... . .... . ....... ....... . .... .. 18 , 581 859 43e 599 3e,850 

September . ......... . .......... ..... ········ 14 , 310 888 360 477 28,380 

, "ater year 1940-41 ...................... 676 ,189 11,700 252 1,B63 1 ,341, 000 
168 RIO GRANDE BASIN 

Rio Grande at Ot owi Bridge , near San Ilde ronso , N. Mex . 

Location.- water-stage recorde r , l at. 35°52' , long . 106°09_:, at Denver & Ri o Grande 

West ern Railroad bridge in San Ilde! oneo Pueblo Gran t, « miles southwest or San 

Ilderonso , s anta F'e County, and 3 miles <1 ownstream rrom Ri o PoJoaque. Datum or gage is 5,488.48 teet above mean s ea l evel (datum or 1929) . 

Drain~e area.- 14 ,300 square miles (includes 2,940 square miles in cl osed basin In nor hem part or San Luis Valley , Colo.) . 

Re cords availabl e .- February 1895 to December 1905, June 1909 to December 1914 an<1 

October 1930 to September 1941 i n reports or Geologi cal s urvey . February 1895 to December 1905 and June 1909 t o Decembe r 1931 In repo rts or State engineer. 

Average <11scl\arge .- 14 years (1927- 41 ) , 1 , 548 seconrt-reet. 

Extremes .- Max imum discharge duri ng year, 22 , 500 secon<1-!ee t May 16; maximum gage hei gh t , 13. 70 reet May 14 ; m1 nlmlllll <Ially <1ischarge , 341 second-t eet Nov. 14. 1930-41 : Maximum <11 s charge , that or May 16 , 1941 ; maxi mum gage height, that or May 14, 1941; minimum <1a1ly discharge , 128 second-t eet June 21 , 1934. 

Remarks .- Reco rds good. Flow partially regulate<! by E1 Vado Reservoir on uppe r Ri o -----cOa:iiiii whi ch st ores wa t er ror irrigation. Diversions above stati on ! or irrigati on . 

Disohar&e. in second-teet wate r year October 1940 to Septeaber H~41 

Do.! Oct. Nov. Dec . Jan . Feb . Mar. Apr . May June 

1 656 4PO 578 58o 1'>30 827 2 ,200 3,860 13, 500 

2 650 475 550 644 518 841 2 , 010 6,020 12 ,300 

3 455 475 555 632 1,460 883 1 , 060 6 ,400 11 , 8 00 

4 425 406 560 530 l,llO 869 2 ,460 7 ,020 11 ,800 

5 440 396 572 505 869 922 2,740 7 ,1570 1 2 , 000 

6 460 3P2 566 555 898 ~:~, 2 ,400 9 ,000 1 2,300 

7 470 388 572 560 P62 1 , 950 10, 700 12, 300 

a 470 388 572 525 970 1,0'10 1 ,950 11 , 600 12 , 800 

9 475 388 566 565 P22 1,000 2 , 010 13 , 000 14, 000 

10 475 396 584 645 978 P58 2,200 14, 200 13, 000 

11 475 583 632 566 Pe6 86P 1 ,950 14, 800 12 , 500 

12 465 357 674 626 1 ,000 841 1 ,720 16,600 10 ,800-

13 460 357 587 626 964 SM 2 , 4450 ,400 9 ,030 

14 460 M1 674 600 736 898 2 ,2&0 21,-tOO ,Q~ 

15 455 35~ 602 632 722 P38 2,010 21,700 7 ,610 

16 460 378 *b4PO 614 799 P62 2,C170 22,000 7,090 

17 ~ 401 520 578 1 ,080 1,210 2,~ 21 , 700 7 ,090 

18 ~25 670 6l.4 666 862 1,280 2,~ 20,&00 6 ,&70 

19 425 1 ,020 5P6 584 P58 1,4.10 2,010 1Q,300 6 , 6?0 

20 954 1,180 530 620 1178 1,61.0 1,660 18,000 7,090 

21 PP4 P62 510 644 P78 1,1510 1,610 17,200 7,V30 

22 P86 602 530 614 1,0W 1 ,830 1,-teo 125,600 8.,810 

2l5 862 578 545 600 1,060 1 ,660 1,610 14,200 0,470 

24 722 658 626 620 1,000 1 , 960 1,800 13,700 10,400 

25 701 687 674 644 1,030 2 ,200 1,780 14.,000 11,100 

26 701 562 632 660 PP4 2,140 2,010 14,000 1o,eoo 

27 722 674 632 620 P22 2,010 2 ,4eo 15,000 10,400 

28 813 658 5PO 596 8M 2,010 2,060 16,000 10,&00 

29 736 666 660 600 - 2,140 3,280 16,700 10,400 

30 540 600 644 602 - 2,200 3,200 16,000 0,470 

31 510 - 658 5PO - 2,010 - 16,000 -

tlontb Second- Maxiaua IU.nl.au.a toot-<laye 

October .. . . . . . . . . . . . . . . . .. ·· ·· ··· ·· ·· ······ 18,177 PP4 425 

Noveabe r . . .. . . . . . ····· ·· ······ ······ ··· ··· 16,360 1,180 ~41 

Deceabe r . ... ..... ...... ... ... ... .. ....... .. 18,:596 687 490 

-- ---- - - -- --- ------ Calendar year 1940 .............. ... .. .. 2'94,677 2,200 ~17 

-- ---- - ------ - ----- January . . . . . . .. .... .... .. .......... ..... .. 18,647 680 505 Februar;y . . . . . . .. " . . •. . . . . . . ~ .. .....•. . . . ... 215 , ll0 1,460 518 

M.a. rob . . . . .. . . . . . ... . . . . .. . . . .. . . . .... . . .. . . 41,982 2,200 827 April. . . .. .. ....• .. • . . .. ... •.. • . .•.... . .... 64,930 3,280 1,460 

llay ... . .. . .. . . • ... . • •.•. . • .• .. • ..• .. •. .. . .. 4152,1150 22 , 000 3,880 

June .. .. . . .. . . . . ... . . . . . . . . . . . . . . . . . . . . . . . . ~07 ,160 14,000 6,670 

July ... .. . . .. ...• . . • . . • ..•. .. .• . .•.• .. . .. .. 121,190 9 ,030 1,220 

August ...... .. .. ... . .... ... ... ... .... ... . 44,726 2,010 6M 

September . .... ... .. . ················ · . .. . . . 36,279 2,410 6P4 

Water year 104041 .. .. .. ....... ... .. ... . 1,146,014 22 , 000 ~41 

• Winter diecharge •a.eurtnllent ••de on tbla 4aT• b Stage-d1eoharge relation a.tf'eoted by ioe. 

J uly Aug . Sept. 

~0 1 ,130 1 ,060 8 , 1 50 1, 21.0 l,OBO 

7 , 090 1, 270 1,000 6 , 670 1 , 520 1 , 01 0 6,670 1,620 990 

5 , 670 1 ,780 990 

5,670 1 , POO 1,~0 

6,670 1 , 900 742 6 , 870 ,~0 6P4 

5 , 100 1,780 69 4 

4,650 1,620 69 4 

4,~ 0 1 , 570 735 3,860 2 , 0 10 1 , 180 

~.680 1 , 840 1 ,:520 

3,600 1, 780 1 , 380 

3,610 1,840 1 ,:5-:50 

.350 1 ,780 1 , 2l50 

~. 030 1 ,780 1,310 

2,960 1 ,680 1,:530 

2,880 l,Q20 2 , 020 

2,800 2 , 000 1 ,460 

2,660 1 , 670 1 ,18 0 2,:580 1 , 020 2 ,410 2,320 950 1 , 190 2,:520 868 P26 

1,900 7P8 8 68 

1,840 721 882 

1,1580 658 974 

1,1520 634 1,700 

1,~0 676 1,780 1,220 1,050 -

Mo&n Runott in aore-teet 

586 :56,060 546 32,470 59~ 36,4QO 

------ -- -- - - 805 684,500 

- - - - - - -- --- - 598 36,7QO 932 61 , 790 

1 , 354 6:5,270 

2,164 128,800 14,690 896,800 

10,240 609 ,200 :5,009 240,400 

1,443 88,710 

1,176 69,970 

:5,192 2_.:511,000 
RIO GRANDE BASIN 169 

Rio Grande at cochl tl, N. Max. 

Locatlon .- Water-stage recorder, lat. 35°38', l ong. 106°19' at hlghway brldge 1 mile northeast or Cochltl, Sandoval County, 4 miles north or Pena Blanca, and 6 miles up- stream !rom Gallsteo Creek . 

ra ln~s area.- 14, 600 s quare miles (Includes 2, 940 square miles l n clos ed bastn ln nor hern pert or San Luis Va lley, Colo.). 

Records available .- October 1930 t o September 1941 ln r eports or Oeolog lcal Survey . J anuary 1925 to December 1931 ln reports o! Sta til englneor. 

Ave rage dts charge.- 16 years (1925-41 ) 1,558 second- rest. 

Extremes .- Max lmum discha rge durlng yea r, 23,400 second-teet May 15 (gage he lgh t, 10 .93 tee t); mln 1mum dal l y, 232 second-tee t Oc t ober 4. 

1930-41 : Maxlmum dis charge , that or May 16; mln1mum dally, 1 second- root Aug. 

lQ-12 , 1934 0 

Remarks .- Reco rds poor. Dtve rsl ons above ststlon !or lrrlgatlon . 

Oisobarge in aeoond-teet , water year October 1940 t o Saptaaber 1941 

o.,y Ool . Nov . Doo . Jan. Feb . War. Apr . llay June July Au c. Sept., 

1 639 ~16 578 e690 5M 8tl8 2,050 4:,360 u .,s.oo 9,~0 1 ,2'-0 1,160 

2 617 ~29 564 e650 5~9 886 1.~ 6,320 13,200 8,180 1,2-&0 976 3 280 422 5~9 e630 1,250 922 1,620 6 ,780 12,.f00 7,220 1,150 9~ 2 4 2~2 440 550 550 1,:160 940 2,180 7,~0 12,000 6,040 1,620 872 5 274 404 564 e500 976 994 2,520 8,010 1 2 ,000 ,6~ 1,620 889 

6 ~16 ~96 550 578 e920 1,110 2 ,440 9,030 12,000 6,500 2,180 994 7 262 4~1 578 678 o960 1,160 1,760 10,800 12,000 5,6.50 2,0~ 940 8 294 ~86 578 550 e970 1,210 1,800 11,200 12,000 s.~ 2,0~ 644 9 294 ~95 578 550 e950 1,130 1,950 13 ,200 12,800 6,630 2,260 604 10 ~~6 422 592 648 el,OOO 994 2,200 16,300 12,400 5,360 2,~ 598 

11 ~59 41~ 634 634 el,020 968 2 ,000 16,'700 12,000 4,720 1,820 578 12 41~ ~77 676 e640 ol,0.50 868 1,830 18,000 10,600 4,720 1,820 691 13 484 274 662 e630 el,OOO 886 2,120 19,900 8,680 4,130 2 ,030 1 ,080 14 ~29 244 676 606 o800 968 2,000 21,400 7,850 ~.soo 1,980 1,240 15 308 U4 6~ 678 e?SO 1,050 1,780 22,400 7,530 3,'100 1,avo 1,330 

16 287 287 564 606 o750 1,039 1,850 22 ,400 7,220 3,800 1,980 1,240 17 294 3211 63Q .sao 1,110 1,250 2,020 2l,POO 7,060 ~,400 1,890 1,170 18 280 6M 606 e660 976 1 , 290 2,0GO 21,400 6,&eo 3,:100 1,800 1 ,230 19 ~01 1,030 678 e590 9114 1,580 1,850 20,400 6,470 3,110 1,680 1,300 

20 786 1,210 628 e610 l ,0'10 1, .ao 1,480 19,400 6 , 7&0 3,200 1,840 1,720 

21 1 ,c:no 1,110 617 o650 1,050 1,570 1 ,400 18,600 7,~ 2,920 1,800 1,'150 

22 1,030 676 617 e6~0 1,010 1,860 1,290 17,100 8,510 2,920 1,690 1,010 23 860 578 628 810 1,130 1,760 1,440 15 ,300 9,030 2,570 1 ,1!50 2 ,010 

24 620 662 620 o620 1,090 1,920 1,64-0 14,900 10,100 2,330 976 1,310 

~ 606 722 690 oMO 1,1.0 2,060 1,610 16,300 10,500 2,4~0 ~9 906 

26 6M 701 662 e660 1,090 1,9&0 1,730 16,:100 10,500 2,260 768 831 

27 690 7oe 692 •6:10 994 1,860 2,2:10 16,200 10,600 2,100 700 906 

28 m 676 6S1 o600 92R 1,860 2 ,6&0 1&,700 10 ,500 1,960 661 1,080 

29 612 676 o810 - 2,000 3,140 17 , 100 10,500 1,680 651 1,650 

30 47S 6M o6&0 620 - 2,150 3,170 16,700 ,7~ 1,500 722 1,890 

31 ll86 - o690 648 - 2,000 - 15,800 - 1,340 1 ,060 - Second- llaxiiiUII IUniaua lie an Runott in lloDlh toot-days acr&-teet 

October . . .. . ..... . . ... ............. ........ 1o6,881 1,070 232 480 29 , 520 

Noveaber .. . . . ... .. . . . . . . .. , ...... . . . . ... ... 18,0o63 1,210 244 636 :n,seo Dececber . ... ... . ... . . . . ... . ... .. ...... ..... 18,661 690 517 598 :56,800 

- - -- - -- -- ---- ------ ------ -- -- -- Calendar year 1~0 ......... ············· 278,687 2,280 186 761 652,600 

- -·-- - - - ------ -- - -- - ------ --- -- - Je.nuary . ...... . . ..... . ......• . . .. . . ... . .... 18,876 690 500 60Q ~? ,440 

February ... . . . ............. . ... , . .. . . ...... 27,426 1,360 539 979 54,400 

March .......... . ... . ..... . ...... . .•...... .. 42,304 2 ,160 868 1,365 83 , 910 . 

April ....... , . . ..•. . .. . .. . ,., •.•..•...... . . 59,680 3,170 1,290 1 ,086 118,200 

~~~~ ········· ············· ·•··· .. ... ... 476,310 22 , 400 4,360 15,330 942,800 

June ...... . ... .. . ........... . .... . ......... 303,400 14,500 6,470 10 ,110 601,800 

July . .. . ..... . .. . . . .......... . .. oo• ••• • 00 .. 125,610 9,030 1,3o60 4,049 2-68 , 900 

Au&u.et .... . ... . . . ........••..•........... 00 o67 ,157 2 , 250 651 1,521 93 , 530 

Septe•ber ....... . ........... . . . •.... . . . . . . . ~3,421 2,010 578 1,114 66,290 

Water year 19•0-41 oo• ·· · · · · · · ···· · ·· · ··· 1,182,458 22,400 232 3,240 2,345,000 

e Sh1ttlng etage-dieohar~ re1atlonJ dieuh&.rge computed on b&e1a or roool'de tor etatlone at otow1 

llr1dge and SaD Fel1pe, 
170 RIO GRAN DE BASIN 

Rio Grande at San rellpe , N. Mex . 

Location.- Wa ter-stage r ecorder, lat. 35°26 ' , long . 106°26 ', at highway bridge In 

San F'ellpe Grant , 2 , 000 rest downstream from Tonque Arr oyo , half a mile ups tream from s an rel lpe Pueblo, Sandoval county, and about 12 miles northeast or Bernalillo . Da tum or gage Is 5 , 110 . 38 teet above mean sea level (datum or 1929 ). 

ral n~e area .- 16 , 100 s quare miles (Includes 2 ,940 sQ are miles In closed basin In nor hem pa rt or San Lu is Valley , Colo . ) . 

Re co rds available.- Octobe r 1930 to Septembe r 1941 In reports or Geolog ical Survey . March 

1925 to December 1931 In re po r ts or State engineer. 

Average discharge.- 15 years (1926- 41) , 1 ,680 second-feet. 

Extremes.- Maximum discharge during year, 22, 600 second-feet May 14 (gage height, 10 .53 reet) ; minimum da lly, 268 second-teet Novembe r 15. 1930-41 : Maximum discharge , 42 , 100 second-teet Aug. 21 , 1935 , !rom rating curve extended above 15, 000 second-feet by logarithmic plotting; m:ulmum gage he ight, 11.13 reet June 26 , 1937; min i mum dally discharge , 34 second-feet July 7, 1934. 

Remarl<s .- Records poo r . Diversions above stati on ror Irriga tion . 

Discharge in seoond-teet water year October 1940 to September 19'1 

Da~ 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

?:1 

28 

29 

30 

31 

Oct . 

457 

466 

448 

4:!5 

425 

508 

410 

448 

4~2 

4~2 

474 

474 

554 

418 

418 

410 

~72 

418 

466 

850 

,0~~ l , 06C 

~~~ 8~E 

889 

902 

915 

,~~ 

554 

Nov . 

620 

610 

592 

554 

474 

4~2 

410 

425 

457 

4~2 

402 

4le 

~06 

~06 

288 

~20 

~~9 

440 

994 1,180 

1 , 110 

719 

501 566 

790 

754 

742 

693 

686 

653 

Dec. 

610 

582 

582 

592 

601 

610 

6~1 

6~1 

631 

631 

631 

686 

719 

765 

730 

65ll 

601 

708 

908 

610 

554 

572 

631 

697 

766 

730 

697 

664 

719 

7W 

790 

Wonth 

Jan . 

814 

754 

697 

6~1 

582 

6~1 

675 

~1 

6 10 620 

642 

697 

5~ 

675 

664 

675 

601 

6~ 

554 

6~1 

697 

675 

631 

620 

620 

708 

610 

620 

65ll 

708 

730 

Feb . 

664 

631 1 , 250 1 , 610 

902 

954 

1 , 020 1 , 050 1 , 020 

994 

1 ,010 

1,090 

1,150 

86~ 

7W 

790 1 , 180 1 , 020 

915 1,080 

1,1-40 

1,020 

1,280 

1,180 

1 , 110 

1,110 

1,050 863 

October .......................... . ........ . November . ... .. . .............•.............. December ................ . ...... . . . .. . •..... 

Calendar year 1940 

Mar. 

e50 

902 

915 

915 

960 

1 ,110 1,380 

1 , 430 

1,250 

1,110 

1,090 

889 

778 

e02 

941 

876 1,220 

1,WO 

1 ,690 1,950 

2 , 070 

2 ,:520 

2 , 010 2,070 

2 , 500 

2 , 210 2 , 140 

1,900 

2,160 2 , 250 

0~ 

Apr . 

0~0 

2 ,120 1,740 2 , 230 

2,580 

2 , 550 1,720 

1,6~0 

1 , 800 2 , 010 

1 , 970 1,650 

2,270 

2 , 360 1 ,880 

1 , 950 2,120 

2,320 

2 , 140 1 , 650 

1 , 400 1 , 260 1 , 430 1 , 800 1,860 

2 , 030 2 , 430 2 , 800 

330 

2,880 

May 

3 ,420 

5,730 

7 , 290 

8 , 020 8 , 380 

8 , 940 11 ,600 12 ,800 

14,400 

15,700 

16,900 

17 ,-400 19 , 100 

20 , 800 21 , 300 

21 , 300 

20 , 800 20 , 400 19 , 500 18,600 

17,800 

16 , 600 

14 ,400 14 , O<XI 14 , 000 

14. ,400 15,300 

17 ,400 

17,800 

17,400 

16 , 300 

Secondroot-days Maximum 

19 ,07'7 

17 ,433 20 ,463 

305 , 757 

1,080 

1 ,180 

790 

2 , 170 

June 

14 , 800 13 , 700 13,000 

12 , 700 

12 ,700 

13 ,4.00 

12 ,700 

1~.000 

14,100 

13,400 

13 , 000 

n.ooo 

9 , 080 8 , 180 7 , 600 

7,320 

7,040 

6,640 6 , 640 6 ,rrto 

7 , 600 8,780 

9,700 

10,300 

11 ,600 

11 , 000 

11 ,000 11,:500 

11,300 

10 ,:500 

Minimum 

372 

288 

554 

246 

July 

~90 

8 ,780 

7 , 890 

6 , 910 6,100 

5 ,710 

6,840 

5 ,840 

5 ,840 

5 , 580 

5 , 250 5,970 

5 , 71.0 4,480 

4,480 

4 , 250 4 , 020 3,690 

3,370 

3 , 580 

3,060 

3 , 260 2 ,760 

2 , 270 2 , 510 

2 , 160 2 , 110 

1 , 940 1 , 750 

1 , 570 1 , 500 

Mean 

Aug . 

1 , 320 1 ,190 

1,090 

1,650 

1 , 580 

2 ,180 

:~ 2 , 910 2 , 660 

:r~ ,~ 

~:~:a 

~~ 

:~~ ,~g 2,1\1\, 

2 , 3fc 

i:~ 1,~~ 

79! 

76 

81 

75 

~~ 

Sept. 

1 , 360 1 , 120 1,180 

1,050 

996 

982 1 , 150 

836 

a720 

568 

702 

690 1,070 

1 , 500 1 , 750 

1 , 680 

1,500 

1 , 430 

6~ 

2 ,1ZO 

950 

1 , 760 

3 , 840 1 , 660 

1,.020 

774 

798 1.,090 

2 ,040 

2 ,760 

Runott in acre-teet 

615 

561 

660 

835 

37,840 34 , 580 40 ,590 

606 ,-600 

January ....... . ...... .... .. ...... , .. . .. . . 20 , 2'72 814 554 6541 40 , 210 February . . . . . . . . . • . . . . . . . . . . . . . . . • . . . . . . . . . 28 , 676 1 , 610 631 1 , 024 56 , 880 

March ....... ... ,... .... ..... ........... 46 , 236 2 , 500 778 1 ,492 91 1 710 April .............................. .. .. . .. 61 , 940 3 ,330 1 , 260 2 , 066 122, 900 

May . ................... ,... . .... . .... . .. . . 467 , 680 21 ,300 3,420 15 , 090 92"7 , 600 June . .......... ....... ................... .. 319 , 650 14,800 6 , 6 40 10 , 660 634 ,000 

July .......... . .... . ... ... ......... . .... ... 137 , 570 9 , 390 1 , 600 4 , 438 272 , 900 August. . . . ................................ . 58 , 794 3 , 260 750 1,897 116 , 600 

September . . . . . . . . . . . . . . . . . . ............. .. f----~_._8~_s-+_-~__9_5o--f ___ s_5_8+ __ 1_,c..4_6_1,_ __ 86-'-, 9-S_o 

Water year 1940-41 ....... ... . . . ...... . . 1 , 241 ,629 21 , 300 288 3 ,402 2 ,463,000 

a No gage-height record.;: dlecb.a..rge c omputed on b&aia ot recorda tor stations near San I1detonao and at Oooh1t1 . 
RIO GRANDE BASIN 171 

Rlo Grande at San Acacia, N. Mex . 

Locati on .- Water-stage recorders on right and le!t banks, lat. 34°15' long. 106°53• In 

Nl:t sec . l , T. 1 S., R. l W., 0 .2 mile downstream !rom San Acacia chverslon dam, hal! a mile east o! San Acacla,and 2 miles downstream !rom Rio Salado . Datum or right bank ~~~ ~~ )~,662 .56, le! t bank gage 4,660 .16 (revised) !eet above mean sea level (datum 

Drainage area.- 26 , 770 square miles (Includes 2 , 940 square miles In closed basin In north- e rn pa rt of San Luls Valley, Colo .). 

Re co rds available.- April 1936 to September 1941 In r eports or Geological Survey. F'ebru~ 

ary to December 1925 and January 1926 to Septembe r 1927 (gage heights and discharge measurements only ) In reports or State engineer. 

Extremes.- Maximum discharge during year, 25,400 second-teet May 18; maximum gage height '1.00 f ee t Sept. 24; minimum dally discharge, 82 second-t eet Nov. 17. 1936-41 : Maximum discharge, 27 ,400 second-teet Aug. 5, 1936 (gage height , 8 .35 

!ee t) , ! rom rating curve extended above 18, 000 second-teet by logarithmic plotting; minimum dal ly , l second-r oot June 23 , 1939. 

Remarks.- Records good . Socorro main canal north diverts water 0 .2 mile above gage . ----oiVersl ons above station !or I rrlgatlon. 

Discharge. 1n second-feet , water year October 1940 to September 1941 

Da Oct . Nov . Dec . Jan. Peb . Wa r. Apr . llay June July Aug . Sept . 

l 797 463 700 820 1,060 990 ,~ 90 4 , 720 16 , 200 8 , 500 592 2 ,110 2 608 354 775 854 905 939 2 ,060 6 , 480 15,400 7 , 910 507 973 3 430 411 775 990 820 854 2,060 8 , 160 13 , 600 6,810 H1 990 4 507 275 685 905 657 922 2 ,040 9 , 980 12 , 400 6 , 550 4H 579 5 392 430 592 905 1 , ::590 973 1 , 730 13 , 500 12 , 800 5,700 382 485 

6 441 260 745 790 1 , 690 922 1 , 930 11 , 700 12 ,000 6,130 335 402 7 364 155 700 685 1,290 1,040 2 , 440 11,300 12,800 4,930 485 312 

8 320 118 888 670 1 , 170 1 , 230 ) , 730 12 ,000 11 , 600 4 , 350 485 305 

9 305 110 715 760 1 , 270 1 ,190 1,440 l4 ,700 12,800 3 ,840 1,450 402 

10 268 155 605 670 1 , 250 1 , 250 1,440 15 , 700 13 , 200 4 , 030 1 , 850 312 

11 282 ll.4 775 605 1 , 010 1 , 010 1 , 760 15 , 700 12 ,000 4 , 230 3,560 175 12 190 254 990 775 1,190 905 2 , 120 16,200 12,000 4 ,440 1 , 4·40 122 

13 185 218 922 905 1 ,100 990 2 , 150 17 , 200 9,G50 5 ,510 2 , 000 1:50 14 206 al60 1,080 922 973 1 , 080 2,340 17,600 9,130 4,340 2 , 840 175 15 195 112 97~ 956 1 , 100 1 , 080 2 , 310 20 , 400 7 , 360 2,990 l,goo 160 

16 230 118 775 760 1 , 040 1,170 1 , 960 22 , 000 6,940 3 , 620 1 , 860 328 

17 155 82 790 618 1,100 1 , 210 1,6-4,0 2 3,200 6,420 2 ,490 1 ,:530 474 

18 110 92 888 644 1 , 390 1 ,690 1,960 23 , 700 6 , 050 2 , 230 1,800 592 

19 96 190 760 618 1,370 l ,'nO 2 ,370 23 ,200 5,.4-60 2 ,260 1 , 460 888 

20 ll.O 254 790 618 1 , :510 1,440 2 , 400 21 , 000 5 , 350 2,470 1 , 030 1 , 070 

21 106 1,110 805 579 1,310 1 ,520 2 , 340 21 , 500 5 ,930 3 , 380 854 1 , 770 

22 138 1,330 805 592 1,390 1,990 1,710 22,000 7 , 220 2 , 140 1 , 370 3 , 190 

23 195 1,120 760 805 1,590 2 , 230 1,760 19,900 7,910 2 , 330 1 , 590 4 , 970 

24 335 1,030 657 700 1,550 2 , 060 1,780 19 , 900 7,910 1,940 1,860 8 , 630 

25 382 1,100 745 730 1 ,480 2 ,170 1 , 410 17 , 200 8 , 810 1 , 860 9~9 2 1340 

26 402 700 854 715 1 ,350 2,700 2 ,090 16 , 200 10 , 200 1,710 760 1,230 

27 364 760 905 700 1,330 3,060 2,990 14,200 9,130 2 , 010 

~~:I 888 

28 402 775 956 805 1 , 250 2,520 3 , 400 15,200 9,800 2 , 730 991 

29 518 730 854 820 - 1 ,710 3,650 16,700 10 , 200 1 , 440 1 , 170 5 , 680 

30 730 7{5 760 905 - 2,120 4,190 17 , 800 10,.200 805 1 , 160 4,750 

31 518 - 775 888 - 2 , 150 - 18,300 - 670 939 - Wonth Second- Maximum WiniiiWD lie an Runott in root-days acre- reet 

October . .. . ... . . .. .. . ...... . ........ . ..... 10,281 797 96 ~32 20 ~90 

November .. . ... . . .. . ... ... . .. . . .. . ...... . . . . 13,726 1 , 330 82 458 'in , 220 

December . .. ........... .. ~ ..... . . . . .... .. . . 24 , 799 1 , 080 592 800 49,190 

---- -- - --- ------ --- - -- ---- Calendar year 1940 . ... • . . .... .•.. •. . 198 , 970 3,880 9 544 394 , 600 

------ --- - ------ -- --- - January .. . . . ... . . . . ... . .. . . . . .. ...... . . . . .. 23 ,709 990 579 765 47 , 030 

February . .. . ... , o • • o •• • • • o • •• • • •• •• • •• • •••• 34 , 335 1 , 690 657 1 , 226 68 ,100 

March . ....... . . .. , .. ... ... . . ..... . . . . . ... . . 46 , 385 3 , 060 854 1,496 92 , 000 

April . ...... • . ...• ..• • . • .•. . •.. . •.•..•. . • . • 65 , 690 4,190 1 , 410 2 ,190 130 , 300 

llay ... · · · · · · ···•· •• • O• ••· · .... .. . .... . .. ... 507 , 540 23 ,700 4 , 720 16 , 370 1 , 00'1 , 000 

June .. .. . . ... ... o o •• •••• • • •• o • •• • •• ••• •• • •• 300 , 460 16 , 200 5,350 10 , 020 596 , 000 

J uly . . . .. .. .. .. .....•. . • .. .. . . . .. .. .. ... .. ll4 , 345 8 ,500 670 3,689 226 ,800 

August ........ . .. . ... ... . . • . , .. , . ... .•..... 37,576 3 , 560 305 1 , 212 74 , 530 

September . . .. . .. .. ....... ..... ······ ······· ,5,423 8 , 630 ~22 1 , 514 90 , 100 

Water year 1940-<11 . . ' .... ······ ·· ·· . ... . 1 , 224 , 268 23,700 82 ~,354 2 , 429 , 000 

a No gage-height record; dleobargo interpolated . 

498588 0 - 43 - 12 
172 RIO GRANDE BASIN 

Rio Grande at San Marcial, N. Max. 

Locat ion .- Water-stage recorder, lat. 33°41', long. 106°58 ', In Pedro Annendarls Grant 34 , at Atchison , Topeka and Santa re Rallway bridge, 1.1 mlles downstream trom San Marcial, 

Socorro County . 

Dra i nage area .- 27,700 square m1les (Including 2 , 940 square mlles In closed basin In northern part or san Luis Valley, Colo.). 

Records available.- January 1895 to September 1941 In reports or Geolog i cal Survey . January 1995 to Decembe r 1931 In reports or State engineer. Prior to January 1922 at sl te 0.3 mlle upstream; January 1922 to rebruary 1932 at highway bri dge halt a mlle nor theast ot San Marcial and 1.8 mlles above present Site. 

Average discharge.- 45 years (1896-1941), 1,552 s econd-t eet. 

Extremes.- Maximum discha rge during year, 24 , 600 se cond-teet May 17 (gage height, 9.73 t ee t ); minimum dally, 154 s econd- t eet Sept. 16. 

1895-1941: Maximum dis charge , about 50 , 000 se cond-teet Oct. 11 , 1904; no tlow at tlmes . 

ka .- Records good. Dl versions above station tor I rrlgatlon. Reco rda t um I shed by ----rnrematlonal Boundary Co1111111Bsl on, U. S. Section (tomerly known as U. S. Boundary Conunlssl on). 

lla.J Oot . NoY . Doc . Jan . Feb . Mar . Apr. ll&y Juno July Au& . Sopt . 

1 702 562 748 793 877 1,330 2,11)() 4, 200 18,100 9 , 630 868 1 , 2 40 2 836 4&6 675 823 979 1 ,130 2 , 250 5,020 16 , 900 8 , 510 727 1 , 870 3 599 329 813 856 !W2 987 2 ,160 6 , 260 15, 200 7 , 540 623 1 , 110 4 476 274 763 890 831 974 2 ,300 7 , 910 13, 600 6 , 790 593 977 5 536 234 709 939 762 971 2 ,200 9 , 630 13 , 500 6 ,030 523 698 

6 513 3-1.8 662 862 881 1, 040 1 ,950 12, 800 1 3, 200 5 , 510 461 566 7 461 360 559 818 1 ,650 1,110 2,040 13 , 300 12,400 5 , 650 396 587 8 347 316 622 749 1,520 1,080 2 ,630 11 , 700 1 2 , 600 4, 870 oU6 489 9 315 218 738 598 1.,320 1,170 2 , 280 12, 300 12 , 300 4 , 670 55 4 325 10 316 172 727 662 1,210 1,~80 1, 620 14, 300 12,400 4, 360 1, 320 321 

ll 251 169 666 7rn 1,160 1 , 280 1, 520 15, 300 13, 000 4,360 2,110 346 12 251 161 686 766 1,060 1 ,220 1 , 600 16, 300 12 , 000 4, 210 3 , 1QO 244 13 274 189 700 803 1, 090 923 1 , 990 17,500 1..1 , 200 4 , 180 1,990 200 14 280 348 749 747 1,uo 898 2,170 17 , 500 9 , 800 4,860 2, 250 178 15 2 48 2 411 950 780 1 ,120 1,000 2 ,110 18, 000 7~ 3 , 650 2 , 5 40 169 

16 28l 187 875 861 1,120 1 ,080 2 ,250 21, 300 7 , 630 3, 2sX> 1 , 920 164 17 301 175 816 777 1 ,0'70 1 , 2 60 ,~50 23,900 7 , 050 3 , 470 1 , 820 32 4 18 237 157 818 781 953 1,100 1,860 23 , 200 6 , 490 2 , 900 1 , 380 496 19 211 178 718 795 1,110 1,300 1 ,980 22 , 300 6 , 010 2 , 820 1, 600 570 20 178 172 690 729 1,180 1 , 4.10 60 21, 300 5 , 500 2 , 760 1, 420 853 

21 167 281 709 681 1,380 l,-4.90 2 ,430 23 ,400 5 , 560 3 , 450 1, 170 1 ,230 22 169 826 824 646 1,6~ 1,690 2, 3-40 23 ,000 5 , 630 .460 963 2 ,070 23 205 1,160 741 646 1,530 1, ~ 1 ,930 21 , 600 6 , 350 2 , 600 1, 310 3 , 360 24 204 1,~0 718 6 44 1,660 1,700 1, 780 20,100 7 ,300 5~ 1, 440 4, 940 25 ~74 917 673 701 1,-1.80 2,280 1,940 20,100 8 , 020 2 ,100 1 ,540 4, 680 

26 415 1,090 690 697 1,620 2 ,S50 1 ,970 17, 500 8 , 760 1, 940 951 1, 650 Z7 376 891 779 752 1,600 2,460 2 ,290 1 6 , 600 9,810 1,880 71>6 1,080 28 378 8 41 881 795 1,320 2 ,860 2 ,640 1S,100 9,680 1,850 472 1 , 320 29 S65 771 860 939 - 2,560 3,130 16.400 9, 270 1,960 356 3 , 5-W 30 508 BOO 817 91S - 2,310 3,240 17,000 9,170 1,470 1, 570 6, 760 31 667 - 764 BoU - 2,080 - 18,200 - 990 1,470 -

Month Second- llui11U8 Mioi.u. .. an Runort in too~ys aore-teet 

October ............... , ....... . ..•......... 11, 420 836 159 368 22 , 660 Noveaber ............ . ... .. ... . •.. ... ....... 13, 849 1 ,160 157 462 27 ,470 

Deceaber ... ·········· ........... ........... 23 , 020 960 559 743 % , 660 

------- ---- -- ------ ------ ----TCalendar year 19 :&0 ... ...... ....... ... ... 186, 011 2 ,700 45 508 369 , 000 ------- ------ ------ ------ ------ January .. ............ .. ...... .. ......... ... 23 , 961 939 598 77~ 47 ' 530 February . . . .. ~ .. ~ ..........•.......•.... ... ~. 755 1 , 650 762 1 , 206 66 , 950 March ... . . . ...........•.. , ..... .. .......... 22~ 2 , 860 898 1 , 491 91,680 April. . ... . . . , .. , . . . ....... , .. , .. , .... . .... 65 ,150 40 1 , 520 2 ,172 129, 200 llay . ........ . . •.•..•..• . ••. • ..•..•.••..... 600,920 2~ 00 4 , 200 16 ,160 99:5 , 600 June . .... . .. . ........ . .............•.. . .... ,950 18,100 5 , &00 10, 230 608 , 800 Jul y .. . .. .... .•.•..•.•. . •..•..•.•• . •..• . . •. 124,140 9 , 6.30 990 4, 005 246 , 200 Aucuat . .......... .. ...... ... ...... ......... :58 , 699 .1 90 356 1 , 248 76 , 760 Septeaber . .. ... . .................•. ... .... <12,2:57 6, 760 1 54 1 ,408 83 , 780 

Water year 1940-oU . . . .•.• . .• ..•.•... .... 1, 230 32 4 23 900 154 3371 2 440 000 
RIO GRANDE BASIN 173 

Elephant Butte Reservoir at Elephant Butte, N. Mex. 

Locati on .- Water-stage recorder at dam on R1o Grande, lat. 33°09'15", long. 107°11 '30", 

1n NWt sec. 30 , T. 13 S., R. 3 W. (surveys by Bureau or Reclamation), 1 mile west or Elephant Butte post of f i ce and 4 miles northeast or Hot Springs. Datum or gage is 

43 .3 teet above mean sea level. 

Records available .- J anuary 1940 to September 1941. 

Extremes.- Max imum dally contents du ri ng year, 1,937,700 acre-teet July 18, 19, 22-25, 

(gage heightt 4,399 .2 teet ); minimum dally, 431,100 acre-teet Oct. l (gage height, 4,324 .3 reetJ. · 1940-41: Maximum dally contente, that or July 18, 19, 22- 25 , 1941; minimum dally, 418, 500 acre-teet Sept. 21-23, 1940. 

Remarks.- Reservoir is f ormed by concrete dam; s t orage began Jan. 6 , 1915, dam completed 

---,ora:y1:3, 1916 . Capacity, 2,219 ,000 acre-teet between gage he i ghts 4,231.5 t eet (sill or lower outle t gate) and 4,407. 0 teet (spillway crest), survey or 1940. No dead 

storage. figures given herein represent useable conten ts. Water is used tor power development and irrigation on Ri o Grande project of Bureau or Reclamation. Contente as herein given were computed from mean dally gage heights. 

Coope ration. - Gage-height record and capacity teble furni shed by Bureau of Reclamation. 

Revi.sed c;apae1tJ' t a'b1e (gage hei ght , 1n teet , and contents, 1.n acre -ro ot) 

(Prepared by Bureau ot Recl.amat1on on baa111 or estt..tea of aUt deposit and partial aurTO'J ot 1940 by the Bureau) 

... 2~1-6 

.4,260 

4,270 

4,290 

4,310 

0 2,200 

37,600 

l29,100 

282 ,900 

4 ,330 

•.~o 

4,!570 

4,390 4,410 

499,700 

783,200 

1,H7,60Q 

1,644 ,100 2 ,33:5, 600 

l'fODtbly gage height a.nd contents, water ye&1" October 19'0 to Septeaber 19U 

Dt.te Contents 

(acre-!'eet) 

s.pt.!5o.. .... ...... . .. . .... 4, !524 . 23 ~9 ,900 

Change 1n content• dur 1ng aonth (acre-teet) 

Oct. :51...... .. .... .. .... .. , ,326.'74 447 , 600 +17,600 

lfOT• :5(). • • • • • • • • • • • · · ••. • • • 4 , 327.61 4.70,100 +22,600 

Deo . 31 .. o . . .•. o ... o ..... . ' i-_:_4•:_3:.:1!1l:.:__·=l2:_-1--_;488=.:..•5_;00_;_-j.----•-1S:..:':._400 __ 

Calendar year 1940 .. o • o • o 

Jan . 31o .. o ....•..•... . •• o. 4,328 . 83 Peb . 28. o. o.. .... .. . . . .. •. . 4,330o1• Jto.r. 31........ .. .. •• . . • • • • 4,332.68 Apr . 3Q ••••••• • •••• •• • , • • •• .,337 . 37 ,.,. 31..... . . ... . .. . .. . ... ..~.66 

JUne !SO.... . .. ... . .. . ..... . 4,!SQ-6.60 J\1l7 n. .... .. ..... ... .... . 4,398.81 Aug. 31 • • •••• .. •.••• .. •• ,.. 4,397.02 

Sept.3().... . . . . .. . .. .. .... . 4,396.74 

486,600 

501,600 

534.,000 

5Q&,700 

1,3g(),600 

1,860,200 

1,Q24,000 

1,863,800 

1,856,200 

-3,000 

+16,100 

+32,400 

+61,700 

+'7g4,g()() 

+46Q,600 

+73,800 

-60,200 

-8,600 

~-----4-------4---------- Water year 1Q40-4l. ....•. . +1, 425,:500 
174 RIO GRANDE BASIN 

Rio Grande below Elephant Butte Dam, N. Mex . 

Loca tion .- Water-stage recorde r, lat. 33°09 ' 10 ", long . 107°11 ' 50' , In NEt sec . 25 , T. 13 S . , R. 4 w., (surveys by Bureau or Reclamation), In Pedro Armendarl e Grant, 1,900 reet downstream rrom Elephant Butte Dam . Datum or gage Is 4,240 . 94 reet above mean sea level. 

Reco rds avallable .- Octobe J· 1916 to September 1941. 

Average discharge.- 25 years, 1,153 second-teet. 

Extremes .- Maximum dally discharge dur ing year, 2 , 810 second-teet July 18; minimum dally , 5'1 second-teet Oct . 2 . 1916-41: Maximum dally discharge , 3 , 200 second-teet July 29 to Aug . 3 , 1917; no now at times . 

Rema rks.- Reco rds good. Considerable diversi on above station ror Irrigation. F'low regu- -rated by Elephant Butte Reservoir (capac! ty, 2 ,219 , 000 acre-reet) . Records rurnlshed 

by Bureau or Reclamation . 

Discharge , in second-teet , wa ter year Oc t ober 1940 t o September 19 41. 

DOJ Oct . Nov. Dec . Jan . Feb . Wa r . Apr . llay June J u ly Aug . Sept. 

1 70 ~ 101 897 1 ,010 002 919 1, 320 1 , 020 1 , 750 2 , 240 1 , 890 

2 67 71 101 1,000 714 604 9 10 1 , 300 1,070 1 , 740 2 , 280 1, 490 

3 72 75 101 991 973 868 908 ~20 1 , 0 70 1 , 860 1 , 960 1, 210 4 79 75 10 4 1 , 000 1,020 8 78 89 4 1 ,190 1,050 2 , 190 1, 4.50 1 , 110 5 81 74 118 700 9~ 800 879 1 , 250 877 2 , 260 2 , 040 1,070 

6 76 89 116 950 901 836 624 1, 270 1 ,070 2 , 100 2 , 250 1,090 

7 77 99 98 956 890 863 3 1, 270 1 , 0 40 2 ,140 2 , 250 968 

8 75 82 95 9 48 932 856 877 1 , 250 953 2 ,190 2 , 260 1 ,010 

9 75 78 104 938 6 44 587 863 1, 200 1 ,060 2 , 010 2 ,190 899 

10 73 81 98 902 903 868 467 1, 240 1 , 0 70 2 , 300 2 ,15 0 1, 070 

ll 71 79 89 896 933 905 881 1,230 1 ,090 2 , 500 1,9 40 1,070 

12 76 86 87 555 942 891 856 1, 250 1 , 120 2 , 530 1, 760 1 ,070 

13 69 86 100 880 916 896 613 1, 230 1 , 050 2 , 210 1 ,030 1,090 

14 71 82 564 9 48 949 006 876 1,210 1, 200 1 , 850 1 ,000 ~6 

15 73 75 613 931 91 9 851 898 1 , 240 1, 010 1, <19 0 l ,O:SO 1,240 

16 76 81 733 92l. 634 604 909 1 , 230 1 , 110 1,?80 1 ,010 1,190 

17 73 78 682 9 40 8 40 868 892 1 ,210 1,130 2 ,090 948 1,100 

18 7 4 78 654 90 4 893 90 5 931 1 , 140 1 ,130 2 , 810 1 ,050 1, 080 

19 93 78 686 556 881 903 985 1 , 170 1 ,130 2 , 300 1,cno 1,080 

20 90 8 6 768 9U 873 890 921 1 , 180 1 , 050 2 ,190 1, 080 1,010 

21 8 4 90 704 934 880 901 1, 140 1 , 170 2 , 260 2 , 160 1, 370 851 

22 7 4 85 5 40 938 858 889 1,2 10 1 , 160 2 , 300 2 ,080 1 , 800 705 

23 72 8 6 611 895 57~ 794 1 , 260 865 ~10 1 ,470 1 ,550 1 , 070 

24 72 92 852 912 8 73 687 1, 2 40 1,120 2 ,130 1, 000 1,200 1,090 26 72 98 6~ 900 903 817 1,150 944 2 , 080 2 ,010 1 , 720 809 

26 72 117 862 598 eaa 869 1,180 1, 120 2 ,120 2 , 020 1, 850 1,080 27 72 117 811 848 895 870 896 1 , 2 10 1 , 980 2,190 1, 690 736 28 72 111 ~ 958 893 877 1,170 1,150 1,450 1,780 1, 670 998 29 94 110 748 952 - 86~ 1,260 1,160 1,690 1, 530 1, 510 V09 30 91 106 963 950 - 609 1,~80 1,140 1,740 1,800 1,190 606 31 eo - 1,070 960 - 850 - 1,~40 - 1 ,920 1,400 -

Month Second- Maxi•wa M.1n1aua lie an Runort 1n root~aya acre-t'eet 

Oc tober .. ... . ... ... . . .. . ... ... ...... ...... .. 2 ,366 9 4 67 76 .3 4,690 November . . . ... . ... . . . . . . . . . . . . . ······· ·· ·· 2 , 634 117 7 4 87. 8 5 , 220 

Decembe r . ... . .... .. . . ..... .... ... ..... .... .. 14, 6 19 1 , 070 87 472 20 , 000 

---- - -- - ----- ------ ------ -- ---- Calendar year 1940 ...... .... .......... .. 353,570 2 , 920 13 S66 701, 300 

---- - -- --- --- - ---- - --- - -- -- ---- January .. . . . .. ... .. ...... .. ............... 27,602 1, 030 555 890 5 4, 750 February . . .. . .... . .. . . .... ······ ........ ... 24 , 513 1, 020 673 8 76 48 ,620 March . . . . . .. ....• .. ...•. . •. . .. . ..•. .• .... . . 25 , 956 905 587 ~7 61,480 April. . . . .. . .•..• . .... .... .. .... ....... 28 , 821 1 , 380 467 961 57,170 

llay . . .... . ... . •.... . .. • . . •. . ..•.. •. . .. . . ... 36, 869 1 , 320 865 1,189 7:5, 130 June ..... . .. . . . .. . ........ ..... ...... . . . . 4.1 , 360 2 ,:no 871 1, 379 82 , 0 40 July .. ... .... .• . . . . • .. •. ••.. . .•.. . .• • . ... . . 63 , 120 2 , 810 1 ,4'70 2 , 036 125 , 200 Augus t .. . ... . . . . . . ..... ... ..... .. . . . .... . . . 49 ,998 2 , 280 9 48 1 ,613 99 ,170 

Septembe r . .. ....... . ... ... ..... .... .. .. . . . . 31 ,4~7 1 , 890 606 1,047 62,310 

91'ater year 1940-41 .. .. ..... ..... . . .. .. . . 349 ,273 2 , 810 67 957 692 ,800 
RIO GRANDE BABIN 175 

Caballo Reservo! r near Arrey, N. Mex . 

Location.- Water-stage recorder, lat. 32°53'45', long. 107°17'30' , at dam on R!o Grande, 

i n SEiSWt sec. 19 , T. 16 S. , R. 4 W., 0.5 m!le downstream !rom Apache Canyon, 0.8 m1le upstream !rom BoJorQuez Bridge , 2 m!les upstream !rom Percha d!vers!on dam, 3.5 m!les northeast o! Arrey, and 4.5 m!les south or Caballo. Datum or gage !s 43.3 teet above mean sea level . 

Records available.- February 1938 to September 1941. 

Remarks.- Reservoir !s formed by earth !Ill dam; storage began Feb. 8, 1938, dam completed 

--sept. 19, 1938. Capac! ty, 345,870 acre-teet between gage heights 4,104 teet (bottom or tunnel entrance to gateel and 4,182 teet (maximum gage height at wh!ch spillway 

gates operate automatically . No dead storage. Figures given herein represent useable contents. Water released !rom Elephant Butte Reservo! r tor power development Is stored In Caballo Reservoir and released !or Irrigation on Rio Grande proJect or Bureau or Reclamation. Contents as here gl ven are computed from mean dally gage heights. 

Cooperation.- Gage-height record and capac! ty tsble !urnlehed by Bureau or Reclamation. 

Xontb.ly gage height and eontente, 'l'nltor year October 1940 to September 194.1 

Date 

Sept. ~o .......... ..... .•. Oot. 31 ••.•.••• . • ..•.... . 

JfOY· 3(),, · • · ••. • • · · • • • .. • 

])ec. 31 . . . ....... . ...... . 

Calendar year 1940 . . ... 

.Tan. ~1 . . . . ............•. l'eb. 28 ... ... . .......... . l'!ar· 31 . . .............. . . Apr . 30 . • . ....•......... . llay 31. .. .............. . J'une 30 . •. •... . •.. ... . .• . 

.Jilly 31. ...... . .. . . .•.. .• Aug . 31 . . ••.•. .. . • ..•. . •. Sept . 3() .•.•.•......•....• 

Water year 1940-41 ..... 

Oe.go height 

(feet) 

4,123-90 

4,:126.24 

4,128-1:5 

4,1:58.62 

4,150 . 54 

4,156.80 

4,156.89 4,145.95 

4,14.1-72 

.,129 .o:s 4,129. 21 

4 , 127-49 

4,133-11 

Contents 

(acre -teet) 

9, 180 

12, 840 16,300 

42, 040 

88 , 010 

124,100 

124,700 

67,900 

51, 610 18,100 

16, 510 1 5 ,150 2'7, 2-fO 

Change 1n eontente during month (acre -teet) 

+:5,660 

+3,460 

+27, 740 

- 37 , 2-40 

+45, 9'70 

+36,090 +600 

-56,800 

-16,090 

-33,710 +410 

~.~60 

+1.2,090 

+U,060 
1?6 Rid "GRANDE BASIN 

Rio Grande bel ow Caballo Dam, N. Hex . 

Location.- Wate~stage recorder, lat. 32°53 ' , l ong. 107°16', In NEtswt sec. 30, T. 16 S., 

R. 4 w., 600 reet upstream rrom Bojorquez bridge, 4,200 reet downstream !rom Caballo 

Dam, H mlles downstream rrom Apache Canyon, 1 1/3 mlles upstream !rom Percha dl ver- sion dam, 3 mllea northeast or Array, and 6 mlles south or Caballo . Da tu111 or gage 

Is 4,146. 9 reet above mean sea level. 

Records available.- January 1938 to September 1941 . 

Extremes.- Maxi!BUIII dall¥ discharge duri ng year, 2,360 second-teet JUly 10; mlnlm\111 dally, 

1.3 second-teet Nov. 16-21, Dec. 12-27 . 1938-41: Maximum dally discharge, 2,660 second-teet Jul y 14, 1940; mlnlllllllO dally, 

that or Nov. 16-21, Dec. 12-27, 1940 . 

Remar!<s.- Records good. Considerable diversion above station !or Irrigation. Flow 

-regu:Iated by Caballo Reservoir (capacIty when constructed, 346,900 acre-reet) and 

Elephant Butte Reservoir ( capacity, 2,219,000 acre-reet) . 

Cooperation.- Records rurnlshed by Bureau o! Reclamation . 

DQ Dot . llo•. Dec . Ju. re~> . Mar . Apr . ~ June July Au& . S.pt . 

1 .all 1.8 1 . e 1.4 a.a :le1 1,1160 1 , 3ec 1,&70 2,000 1,880 1,aec 2 .0 1.8 1 14 1.4 1.1 183 1,8eo 1,310 l,&eO 1.,740 2,08C 1,770 3 S6 1.8 1 . 4 1.4 a.o 4 . 2 l,V&O 11260 1,770 1,840 2,070 1;6110 4 119 1.8 1.4 1.4 2.0 s.8 1,0~ 1,260 1o810 1oS40 2,070 1,116() 

6 18 1.8 1>4 1.4 1.0 s.8 2,110 1,260 1,810 2,000 2,070 1,6110 

6 2.3 1·.8 1 o4 1>4 a.o 3.8 2,18C 11270 1,810 2,170 2,07D 1,700 7 2.3 1.8 1.4 1.6 8.1 3.8 2,210 1,116() 1,610 2,110 1,880 1,eec 8 2.3 1.8 1.4 1.1 2.1 3.8 2,li:O 1,540 1,810 2,100 1,1100 1,880 9 2.1 1.8 1.4 1.1 a .• a 3.8 2,060 1,880 1,810 2,180 2,260 1,660 10 2.2 1.11 1.4 1ol a.a 3.8 1,UO 1,770 1,810 2,seo 2,160 1,630 

ll 2.1 1.7 1.4 1·.1 2,3 612 1,VIIO 1,730 1,780 2,2GO 2,120 1,.80 l2 2.0 1.7 1.1 1.1 2.3 M2 2,160 1,730 1,770 2,1190 2,18C 1,400 13 2.0 1.e hS 1.1 2.1 871 2,110 1,680 1,760 1,180 1,130 1,100 14 1.7 1.e hi 1·. 1 2.1 1,080 2,180 1,aec 1 ,e.o 1,160 1 ,160 1,270 16 1.7 1.6 1 13 1>6 2.3 1.,.080 2,140 1,1160 2,080 1,110 l, 170 1,170 

16 .l.T 1.4 1.1 1• 4 11.1 1,060 2,110 1.770 2,060 2,170 1,610 1,210 

17 1.7 1.4 1.a 1.4 2.1 780 2 1uo 1,.880 2,120 2,18C 1,810 1,08C 

18 1.7 l.S hi 114 2>1 Me 1,110 1,860 2,600 2,le<> l,&eO 1 ,040 

19 1.7 1-.6 l.S 1·.4 2.1 716 a,ovo 1,evo 2,340 2,170 1,600 1,030 

20 1.7 1.1 1.:1 1.4 2.1 871 1;890 1,830 2,180 2,260 1,116() 1,170 

21 1.7 1.1 1.a 1>4 17 847 1,8110 1,840 2,310 a,1ec 1, 670 8'71 

22 1.7 378 1.1 1·4 831 lt 110 1,~80 1,630 2,360 2,100 1,700 12 

23 1.7 11M 1•1 1.6 831 1>210 2,060 1,460 2,270 2,010 1,78C 6 .4 

24 1.7 ·~8 1.ll 1>1 667 1,110 1,780 1,100 2,180 2,110 1 , e8o 171 

211 288 1&11 1.3 Le S78 1,420 1,740 1,200 2,060 2,070 1,&60 233 

211 317 e.t 1.a l.t 470 1,610 1,500 1,120 2,010 8,080 1,&70 312 

27 188 2.0 1.S l.t 470 l,{VO 1,400 1,210 2,020 2,0&0 1,770 628 

28 2.3 1.7 1.4 1.1 413 1,620 1,400 1,370 2,010 1,840 1,770 424 

211 2.1 1.1 1.4 1.1 - 1,700 1,480 1,470 2>,020 1.,9eo 1,8CO 13 

30 2.0 1.1 1.4 2.1 - 1,760 1,440 1,&10 2,020 1,veo 1,900 e.• 

31 1-~ - 1.4 2.6 - 1,8&0 - 1,810 - 2,010 1.~oo - llontb S.oond- lluillua llinillua Moan Runoff io toot-<taya aor.-teet 

October ............ •..• . ...... . . . •. . • . ... . . 1,428 . 4 433 1.7 46 . 1 2,840 

No•e.ber ....•.......•.... . .. . . . . . •.. • .... .. 1, 716.0 636 l . S 67.2 3,400 

Oeoeaber ............ . ... .• ..•.. .. . . .•. ... .. 42.0 1.6 1.3 1.35 83 

-- -- --- ------ ------ ------ -- ---- Cale~r )'ear 1940 . . . . . . . . . . . . . . . . . . . . . . 368,9~3.8 2,660 1. ~ 1,008 731,900 

---- - -- ------ ------ - -- -- - ------ January . . . .... . . . · .... . . . . . . .. . . . . • . .•.. . ... 48.9 2.6 1.4 1.68 97 

February . . .... . .. . .•. . • . .• . .. . . . . • : ....... . 3,661.4 631 2 . 0 131 7,2&0 

llarob . ................•. .•....... . ..•.. . . . . 24,86~.5 1,860 3.9 802 49,310 

April. .................... . .. ... . . ... . ... . . 68,080 2,210 1,400 1 ,936 116,200 

Jla7 . ....... • ......... .•..•......... . • . . . . .. 48,1160 1,880 1,100 1,612 82,860 

June ........ . . . ....•.... . • .. . . . ..•..•.. . . . . 69,100 2,:550 1,640 1,970 117,200 

July .. ................................. . .. . 86,010 2,3«50 1,740 2,097 12~,800 

AuiUat ...........................•..•.. . .. , 66,680 2,2&0 1,160 1,798 110,600 

S.ptoaber ........................ . .. . . . . ... :51,447 . 8 1,880 6. 4 1,048 62,&80 

Water Jear 1040-4~ ....... ~ ...... .... .. .. :547,044.0 2,360 1.3 VI~ 800,100 
RIO GRANDE BASIN 177 

Clear Creek below Continental Reservoir, Colo. 

Location.- Water-stage recorder and. Parshall flume, lat. 37°53' , long. 107°11', In sec . 22, T. 42 N., R. 3 W., 1,000 teet d.ownstream from Continental Reservoir and. 15 m1les west or Creed.e. 

Drainage area.- 49 square m1les. 

Records ava1lable.- October 1933 to September 1941 In reporta or oeologl cal survey. 11ay 

1929 to September 1941 In reports or State engineer. 

Average d.!scharge.- 12 years, 29 .0 second.-teet. 

Extjymes.- Max!mum discharge dur!ng year, 264 second.-teet July 3 (gage he!ght, 3.23 teet); n1mum dally, 2.2 second-teet Sept. 8-15. 

1929-41: Maxlmum discharge, 313 second-teet May 4, 1937 (gage he!ght, 3.41 teet); no now June 22, 23, 1935. 

Remarks.- Records good except those tor per!ods or !ce ertect or no gage-he!ght record, 

---wliiCii are ta!r. Flow regulated. by Continental Reservoir (capac!ty, 26,700 a~teet). 

Diechar&e . in aeoond-teet, water year October lHO to S.pte_,.r l.Hl 

llaJI Oot. 

1 14 

2 14 3 12 4 ol2 5 u2 

6 ol2 7 ol4 8 18 

9 18 10 1& 

ll 14 12 14 13 14 14 13 15 13 

16 14 17 12 18 12 19 12 20 12 

21 

22 

23 

2.4 

25 

26 

27 

28 

29 

30 

31 

11 

11 

10 

g,4 

g,4 

12 

14 

12 

12 

14 oe.1 

Nov. Dec . Jan . P'ob. 

8 

Month 

Ooto~r ......... . .. ... .................... . Nove•ber .... . ....... .. .................... . Deoe•ber ...... . ...... . . . ........ . 

Calendar year 1;40 . .... . ...... . . . .. . ... . 

Mar. Apr . 

12 

13 

Secondtoot-days 

387,9 

180 

217 

14 

14 

14 

14 

14 

36 

38 

37 

38 

39 

39 

': 

~ 

lOS 

104 

112 

128 

160 

20S 

242 

267 

244 

Sll 

208 

1116 

1110 

188 

203 

129 

82 

86 

88 

88 

14'1' 

17V 

Juno 

179 

17g 

212 

esa 

2S1 

BSl 

2S7 

= 2U 

aM 

as& 

1~ 

1&e 

147 

147 

148 

14g 

187 

14.1 

101 

102 

147 

17V 

181 

78 

18 

18 

18 

18 

18 

18 8.1 

1311 

Jul.7 

70 

l&V 

eea 

280 

282 

144 

2V 

27 

28 

28 

28 

28 

a28 

o28 

28 

28 

18 

11 

12 

13 

12 

11 

11 

41 

6V 

62 

6V 

86 

o&O 

o60 

o60 

llean 

Sopt . 

11 

11 

lS 

g.7 

g,'l' 

V.'l' 

6.6 

2.2 

2 . 2 2 . 2 

2.2 

2.2 

2 . 2 

2 . 2 2.s 

2.& 

2.6 

2.6 

3.2 

3.6 

§,4 

11 

16 

18 

18 

lg 

18 

18 

18 

17 

Runotr 1D 

aore-teet 

18.6 789 6 S67 'I' 430 

17.2 12,610 

January .. ... .. ..... .... . .. , ...... . , ... . •.. , 248 8 492 rebruary . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . 280 10 565 llaroh ... . ... , . ................ ,...... . ..... 404 13 . 0 801 April ................... ....... .......... . . 831 ow U 21.0 1,260 .... ........... .... . .. .. . .. ... .. .. .. . .. • s,gve 267 s& 129 7,gso 

Juno , , . ..... ..... .... ........ .......... . .. , 4 ,673 I 23'1' 18 152 9,070 July ........................... ,........... 1,972 2152 11 63,6 3,g1o AU&UBl , ....... . ,., ........ , ....•. ,.......... l ,lQO 63 1g S8.4 2,360 

Sopto•bor . . ...... .... .... . . . .•.••.•• . •.... 't---27- 6_.o_, l-j ___ 21-+ ___ e_._2+---g_._eo-1 __ 

28 ~.,.-:

water year 1g4o-41 . . . . . . . . . . . . . . . . H,,3fi&.g 262 3~.3 r-

' W!Dter c11eaharp .. aaureaent aade oo th1e c1ay .. a Jfo P8•·be1Sb' reoord.J c11aoharge ooaputed. on baale or gate opening• at Oootlnental. ReeerToir. ~- Stap-dieohup relation a.tteoted bJ lee MOT .. 1 to Xa7 7 (no p.ae-hel&bt reoord). 
176 RI 0 GRANDE BASIN 

Goose Creek near Wagon Wheel Gap, Colo. 

Location .- Water-stage recorder, lat. 37°41 ', long. 106 °50 ', In NWl sec. 26 , T. 40 N., R. 1 E., H miles downstream !rom Roaring Fork and 6 miles south or Wagon Wheel Gap . 

Drainage area.- 51 square miles. 

Records available.- October 1939 to September 1941. October 1924 to July 1926 at sl te 1 mile upstream . 

Extremes.- Maximum discharge during year, 780 second-teet June 23 (gage height, 2.99 teet), rrom rating curve extended above 500 second-teet; minimum dally, 11 second- teet Apr. 1, may have been l ess during period o! Ice ertect. 1924-26 1939-41: Maximum discharge, that or June 23, 1941; minimum, 8 ·second-!eet 

(regulated\ Nov. 29 to Dec . 16, 1924 (gage he i ght, 0 .08 root, site and datum then In 

use). 

Remarks.- Records good except those ror periods ot lee errect· or no gage-height record\ --wliiCfi are !air. Flow slightly regulated by Lake Humphreys (capa c! ty, 842 a cre-teet . 

Discharge . !n second-teet. water year October 1940 to September 1941 

Da Oct . Nov. Dec . Jan. Feb . Mar. Apr . May June July Aug . Sept . 

l 50 19 16 11 r;:s 246 4l.O 94 32 

2 46 21 1 6 12 56 255 398 86 31 

3 H 22 16 15 71 313 a400 79 29 

4 39 21 16 (• 16 65 318 • 416 74 27 

5 82 16 16 18 74 304 a470 74 27 

6 82 20 16 17 97 304 398 72 26 

7 57 19 16 18 122 343 366 70 24 

8 51 19 15 19 158 337 340 79 26 9 48 18 15 20 198 272 292 81 26 

10 45 18 16 22 227 238 296 72 23 

11 39 14 16 20 272 212 283 67 22 

12 38 16 16 18 348 198 310 61 o21 

13 36 14 13 19 467 195 261 60 a 23 

14 34 •16 13 19 463 205 225 60 a40 

15 29 19 14 23 380 231 204 96 36 

15 16 17 

16 28 20 15 23 337 272 194 70 29 

17 26 19 •23 364 369 208 63 30 

18 24 19 23 396 SH 261 68 36 

19 23 18 19 364 r;:52 222 a57 n 20 23 18 ( • 19 265 592 222 a64 68 

21 22 16 20 206 580 197 aSS 76 

22 23 16 18 198 611 184 aSS 63 

23 23 16 18 202 679 175 a53 72 

24 23 16 15 18 235 587 166 a62 60 

25 22 16 21 285 561 164 a49 56 

26 23 16 23 327 580 146 a 46 60 

27 25 16 28 343 568 132 a40 4(1 

28 23 16 38 318 523 122 37 4l 

29 22 16 45 272 469 113 29 6] 

30 22 16 53 242 43~ 106 36 58 

31 20 231 100 35 

Wontb Second- Wax.imue Y1nlmum Mean Runott in root-days acre-teet 

Oc t ober . . . ... ... . ... ...... . ... . 1,0 92 82 20 35 . 2 2 , 170 

November .. . . . . ... . . . . . . . .. •.. . ....•.. . ..... 526 22 14 17 . 5 1,040 

Decembe r . . . , . .... . . . ....• . • . .• ... . . ..•....• 470 11;.2 932 

-- ----- Calendar year 1940 ···· · ·· ··· ·· ·· · · · ··· ·· 10, 721 123 29 . 3 21 , 260 

------- January . .. . ... . ...... .. .. .. . . ...... . . . ..... 465 15 922 

february . . . ... . . . . . . . . . . . .... ········ ·· · · ·· 448 16 889 

March .. . . ....... .... ... . . . . .. •. . . .. . . ... . .. 627 17 1 , 060 

Ap ril ... . ...• . .•.. . . . . .•. . •.... . . . •..•... . • 656 53 1 21.9 l ,:SOO 

llay .. . . .. .. . . . . ............ . ..... . . . ....... 7 , 615 463 

1~ 246 15 , 100 

June ... ·· · ···· ·•·· · ··· ··· · ·· ·· ····•········ 11 , 841 679 395 23 ,490 

July . ... . ... . . . .... ... ..... . ......... . . . . ., , 769 470 i~ 251 15 ,410 

~~~ ···· ······· ··· ·· ·· ······ ···· 1,911 96 61.1 3 ,790 

Sept.e•ber . . ..... . . ..... . . ... . . . . . . . ... . ..... 1 ,194 76 2 39.8 2 , 370 

Water year 194<>-41 . . ... .. . . ..... . ... . . . . 34,614 679 94 .6 68 ,460 

• Winter d1acba.rge measurement made on this day. a No gage- height record; d1acbarge computed on ba.a1e ot r ecord f or South Pork or R1o Orand.e at 

South Por k . ~- Stage-discharge re lation a.trected by Ue Dec. 17 to Apr .. l (no s ase-be1 gbt record) . 
RIO GP.ANDE BASIN 179 

South Fork o! Rlo Grande at South Fork , Colo. 

Location.- Water-stage recorder, lat. 37°40', long . 106°39 ', In sec. 4 , T. 39 N., R. 3 E., It m1les upstr eam rrom mouth and H miles southwest or vi llage or South Fork. 

Datum or gage Is 8 , 221 . 79 teet above mean sea level , datum or 1929. 

Dra inage area.- 216 square miles. 

Records available .- August 1910 to September 1913 (at site 1 mile downstream} and May 1936 t o September 1941 In reports ot Geological Survey . August 1910 to Septembe r 1922 (at site 1 m1le downstream} and May 1936 to September 1941 in r eports or State engineer. 

Average discharge .- 17 years (1910-22 , 1936-41}. 248 second-teet. 

Extremes.- Maximum discharge during year, 2,220 second-teet June 23 (gage height, 5.64 r eet), rr<im rating curve extended above 1 ,700 second-teet; minimum dally not determined, 

occurred during period ot Ice e rrect. 1910-22, 1936-41 : Maxi mum discharge , 8,000 second-teet Oct . 5 , 1911 (gage he i gh t, 9 .7 t eet, present stte and datum, !rom !loodmarkS}. from rati ng curve extended above 1,500 second-t eet; minimum dally , 20 second- teet Jan. 1, 2, 8, 17, 23-25, 1915, Dec . 20 , 1937 . 

RemarkS.- Records excellent except those t or May 14 to June 30, whi ch are good , and those 

-----ror-period or tee ettect , which are !alr. A !ew small diversions t or Irrigation, and 

several small storage reservoirs above station . 

Discharge , in seoond-teet. water year October 1940 to September 1941 

Day Oct. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

1~1 

10'7 

95 

86 

206 

273 

166 

138 

124 

110 

98 

88 

8t 

79 

7~ 

69 

66 

62 

59 

57 

54 

6:1 

52 

51 

50 

52 

68 

56 

59 

6t 

•50 

Nov. 

50 

6:1 

55 

55 

tO 

ts 

52 

5{ 

52 

51 

30 

Dec . 

43 

Month 

Jan . Feb . 

42 45 

October .. .... .... .... . .. . . ......... . • . ..... Nove•be r ..... .. ....... . . ......•..•......... Deoe•ber ................ .• ... .. • . .......... 

Wa r . 

47 

( • ) 

( o) 

Secondroot-days 

2 , 762 

1,110 

1 , 333 

Apr . 

110 

99 

89 

86 

91 

351 

406 

468 

422 

462 

83 6:11 

eo 778 81 920 87 1,100 1 08 1,260 

98 1 , 420 103 1,630 106 1,830 

110 1,820 120 1 , 660 

125 

120 

104 

96 

91 

91 

86 

86 

89 

104 

129 

169 

219 

281 

337 

1 , 540 1 , 560 1 , 590 1 , 540 1 , 260 

1 , 060 1 , 050 1 , 050 1 ,140 1 , 280 

1,400 

1 , 610 1,390 

1 , 270 1 , 190 1,160 

Max1JDUII 

273 

June 

1 ,200 

1,230 

1,290 

1,:no 

1,330 

1,:no 

1,380 

,3~ 

1,370 

1,180 

1,030 

954 

925 

948 983 

1 , 060 

1 , 250 1 ,520 

1 , 700 

1 , 820 

1 , 830 1 , 870 1 , 970 1 , 940 1 , 850 

1,750 

1 , 650 1,540 

1,360 

1 , 200 

Minimum 

60 

July Aug. Sept. 

1,100 

1,030 

1,010 

9?1 1,160 

948 

881 

886 

816 

752 

742 

757 

686 

506 

549 

511 

502 

641 

567 

567 

482 

442 

406 

399 

365 

330 

305 

278 

266 

240 

229 

lie an 

89.7 

37.0 

43.0 

217 

200 

191 

182 

176 

242 

284 

302 

287 

253 

240 

245 

242 

222 

324 

210 

182 

165 

14 2 140 

140 

127 

111 

103 

98 

89 

81 

76 

77 

99 

81 

?1 

68 

55 

61 

59 

56 

55 

59 

6:1 

68 

56 

54 

62 

191 

1~1 

99 

101 

111 

136 

202 

196 

168 

178 

156 

1:14 

122 

lll 

106 

210 

196 

Runorr in acre-teet 

5,520 

2,200 

2,640 

Calendar year 1040 . . . . • ..•.. , .... , . . . 39,098 623 107 77,560 

~::~~ ::::::::::::::::::::::::::::: :: :: :~ : :~ ~:~ March . ............ , ..•....... .. . ,, . ... .. . ... 1,467 47 2,.890 

April ............. . ... . .... . ........ .. . .. .. 3,578 337 80 119 7 , 100 

~~~ :::::::::::::::::::~::: ::::::: :: ::::: : !~: ~~ :~g ~~~ ~:!~~ ~;;::g July ... ....... ,_.. . ...... . . .................. 19 ,416 1 , 160 229 626 ~,510 

August . .. . .. . ......... ... . ... . ... .. . . . ..... 5 ,528 324 76 178 10,960 

Septo•ber ............ . ........ .... ..... .... f----3.;_, _32_7+---2-l0-+----64-t--ll- l_+ __ •_._s_oo_ 

Water year 1940-41 .. . . . .... . . .... .... .. . 119 ,401 1,970 327 236,800 

• Winter <11eeharge •eaaurement ma<1e on thla day. lli.!..:..- Stage~Uaobarge relation a.t1'eote<1 by loe Hov . 6 t o P!ar. :n (no gage-height record) . 
160 RI 0 GRANDE BABIN 

Pinos Creek near Del Norte, Colo. 

Location.- water-stage recoroer and Parshall nume, lat. 37°27', long. 106°35', In sec . @~i ~.;J~.N., R. 5 E., Just downstream from Bennett Creek and 8 miles southwest ot 

Drainage area.- 53 square miles . 

Recoros available.- May 1936 to September 1941 In reports ot OSologlcsl Survey. May 1919 to September 1924 and May 1936 to September 1941 In reports ot State engineer. (No 

winter recoros most years. ) 

Extremes.- MaJclmum discharge during year, 416 second- teet Aug . 6 (gage height, 2.86 teet); minimum dally, 4. 0 second-teet or less at times during period ot lee effect . 1919-24, 1936-41: Maximum dally discharge, 2,400 second-teet June 3, 1922; mln!IIIUIII not determined. 

Remarks.- alcoros good except those tor period ot l ee ettect, whlth are ta1r. One Slllall 

-arveFs1on above station. 

Diachar&e . in second-teet. water year October 1940 to S.ptoabu 1941 

D~ Oct . Nov . Doc . Jan . Fe'b . Ma.r. Apr . lla7 JuDO Jul:r Auc . Sept . 

l 7.0 18 8 . 8 36 178 a9 38 26 

2 5.3 ll 9.9 40 174 us 38 2e 

3 4 . 4 a.8 8.4 48 183 uo 38 eo 

• 4.2 8.1 8.1 60 186 137 38 18 

5 8.1 8.8 7.7 60 194 139 38 18 

6 9 . 5 1l 7.0 82 196 129 4e 15 

7 6.o 10 8.1 113 eov 117 

~ 15 

8 5.3 9.e 8.1 161 227 110 16 

9 5 . 3 7.7 8.1 225 223 102 38 17 

10 5.0 8 .8 9.e 287 eu 96 31 17 

ll 4.4 8.o 8.4 284 196 96 28 16 

12' 4.4 6.0 9.6 3M_ 187 101 28 16 

13 4 . e 5.0 5.3 9.9 U9 181 90 e8 17 

1. 4.4 ... 4 9.6 289 179 82 39 26 

15 4 . 4 4 . 0 10 e69 174 79 47 18 

4.0 4.0 4.0 

16 5.0 4.0 11 261 186 71 M u 17 4.7 4.0 ole 26e 198 ea M 17 

18 4.7 4.0 I•) ll 28-' 229 78 36 17 

19 4.7 4.0 9.5 e47 e71 76 32 17 

20 4.7 • • o 9.9 198 278 76 32 18 

21 4.7 4 . 0 9.2 154 28-' M 31 le 

22 6.0 4.0 8.8 170 278 57 30 18 

23 5 . 0 4.0 9.2 212 286 60 26 eo e. 4.7 4 . 0 9.6 240 282 '7 23 16 

25 4.7 4.0 11 263 276 47 22 H 

26 •• 7 4.0 5 . 6 H 240 268 48 21 13 

27 5,0 4 . 0 .e. 5 19 2U 236 47 19 17 

28 5.3 •• o 7 . 0 23 226 223 43 18 17 

29 7.0 4.0 7 . 4 30 196 187 n 18 28 

30 9.5 4.0 ll M 179 165 39 eo eo 

31 •16 10 168 39 20 

llonth Second- llalUaua IUniaua lie on Runorr 1n root-da;re ac~teet 

October ......• ........ .. , ........ . ......... 178.3 16 4.e 6.76 3M 

Hoveaber .............•...... . .............. 188.8 16 4 . 0 6.23 371 

Deoeaber ........ .. ... .... ...... ............ 124.0 4.0 248 

---- -- - Calendar year ··· ······ ····· ···· ···· ------ - January .. ......... .. . . ..•..•. ...... .. . ..... 124 . 0 4.0 eu 

February . . . . ........... . ............ . ...... . 112.0 4.0 222 

March . .......•. •• . •. . •..•..•.• •.••.•. .. . . . . 180.0 ll 5.81 357 

April ..... .... ........ . .... . ..... ... . . . . . . . 351.8 M 7.0 11.7 8116 

llay .. ... .. ....••• . •..•..•.. . . •• .•.. . . .. .•.. 8,22-4 429 36 201 12,350 

June ..... . ... . ... . ...• .. .... . .. . . . . .. ... . .. 8,&.31 286 1116 218 12,960 

July ... . . .......•. ... •..• . ... •. .... . . . .... . 2,814 159 39 84.3 &,180 

Aucust . . ..... . ............ . .. . ..• ..•.... .. . 937 47 18 30. 2 1,8&0 

Septe•ber . . . . . . .... . . . . .... . . ... . . .. ... . ... 636 28 13 17 . 8 1 , 080 

Water year l;..o-&:1 .... . . ... ...... ... .... 18,09'7.0 429 49,6 a&,8~ 

• Winter d1echarge •••u.rement .. de on tbia day. ~- Stage-dhcharge re1&t1on a.tt'ected bf 1oe WoY. ll to ftar. 27 (no gage-be1gbt record) . 
RIO GRANDE BASIN 181 

San Francisco Creek near Del Norte, Colo. 

Location.- Water-stage recorder, lat. 37°35', long. 106°22', In sec. 31, T. 39 N., R. 6 ;;., lt miles downstream rrom East Fork and 6 mlles south or Del Norte . 

Drainage area.- 13 . 1 square m!les. 

Records available.- April 1936 to September 1941 (no winter records most years). 

Extremes.- Maximum discharge during year, 357 second-teet June 24 (gage height, 1.48 feet), !rom rating curve extended above 50 second-teet; minimum dally, 0 .4 second-toot 

Nov. 14, may have been less during period ot no record. 

1936-41: Maximum discharge, 364 second-teet July 27, 1936 (gage height, 1.47 teet), by slope-area method; minimum dally recorded, 0.4 second-toot Oct . 30, 31, 1937 , Nov. 

14, 1940. 

Remarks.- Records good except those tor periods or Ice ertect or no gage-height record, 

---wri!(ffi are talr. One small diversion above station. 

Diaoh&rse. in aecond-feet , water year October 1940 to Septe•ber 19t.l 

Daj Oot. Nov . Doo . Jan. Fob . liar . Apr . Juno July Aug . Sept . 

1 

2 

3 

• 5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

1!1 

20 

21 

22 

23 

:u 

215 

26 

27 

28 

29 

30 

31 

1.11 

1.7 

1o7 

1.6 

lll..6 

llJ.,fi 

al.6 

a.l.e 

Ill. .& 

1 .7 

1.& 

1.6 

1.6 

1 .6 

1ofi 

1.0 1.a 

1 .1 

1.1 

1 . 1 

1.1 

1.1 

.8 

1.0 

1.0 

1.0 

.8 

.e 

.7 

.7 

• • 7 

1.2 

1.11 

.a 

.a 

1.0 

2 .& 

2.3 

1,2 

1.7 

2.3 

2 . 1 1.6 

1.1 

•• 4 

1.6 

-th 

1.6 1.5 

Ootobor ...... .• ..........•.......•.. , ..... . No•Mber . . ... . ....... .•.............•...... Deo~r ....................•.. . . .. . . ...... 

Calendar 71ar 

2,0 

311.2 

46.0 

4&.6 

1.7 

1.7 

1.7 

1.7 

1 . 7 

1 . 8 1.8 

•LS 

1.11 

1 .11 

1 . 7 2.6 

2.& 

2.1 

2.1 

2.1 

~.1 

3.4 

3. 4 &.1 

3.0 

2.1 

1.9 

1.11 

2.1 

2.e 

3.0 

3.4 

6.1 

&.4 

5.5 

7 .2 

7.9 

8.6 

11 

13 

12 

13 

13 

17 

22 

63 

83 

11:5 

" 

40 

42 

411 

40 

36 

30 

31 

32 

31 

3& 

3& 

28 

2& 

24 

21 

21 

1.11 

26 

26 

25 

24 

25 

24 

25 

28 

30 

25 

23 

20 

111 

111 

111 

20 

23 

28 

31 

31 

31 

31 

32 

" 28 

211 

28 

24 

21 

111 

o.e 

18 

16 

16 

16 

18 

16 

H 

H 

H 

13 

15 

17 

17 

15 

16 

13 

12 

11 

11 

11 

ll 

9.2 

s.e 

e.e 

e.e 

11 .2 

11 .2 

ll.e 

e.e 

7 .11 

e.s 

lie an 

1.26 

1.6 

1.5 

e.e 

6.4 

6 .11 

5 . 9 6 . 5 

5 .5 

5 . 5 6.4 

7 . 9 6.4 

6.11 

6.11 

5.5 

5.11 

6.s 

6.9 

7.2 

7.2 

7.2 

7 , 2 

7.2 

e.s 

&.4 

&.4 

6.4 

5.11 

5.11 

5.9 

5.9 

5 .6 

6.1 

4,7 

4.7 

3 . 8 3,4 

3.0 

2.8 

2.8 

2.6 

2 .& 

2 .6 

e.e 

2 .6 

3 . 0 3.4 

3 . 0 

2 . 8 

e.8 

2 .8 

2.6 

2.8 

2 .e 

4.3 

4.7 

3.0 

2.6 

2.3 

2.1 

2 .6 

4.7 

3.0 

Runott 1A aore-tHt 

78 

811 

112 

January ...... . . . ........ . . . ... .. .... . . . . . .. 48.6 1.6 92 February .. . . . . . ....................... . .. . . ,2.0 1.6 83 llaroh . . . . ...... . . , ................... . ..... e2.0 2.0 123 April ... . ............................. . . . .. 76.4 6.4 1.7 2.66 162 

~~ :::::::: :::::::::::::::::::::::::::: ~~~· 2 :; 1Z'

5 ~:~ i:~:g July .. .................................... . 388. 9 18 e. a 12. 5 767 Aur;uot ........................... .• . .. .. . . . 1114.3 7.11 6.1 6.27 386 

S.pteabor . ... . . . ... . .. , ......... . ... . . . .. . . l-__ .:..9~:_:..:~~---4-·_7-+---2--.1=-4---3-1_1+---18_5 

Water J•ar lQ.t0-41 . . . . . . . . . . . . . . . . . . . . . . 2,705.3 83 ?.•U 6,370 
182 RI 0 GRANDE BASIN 

Rock Creek near Monte VIsta, Colo. 

Location.- Water-stage recorder and 8-toot Parshall tlume, lat. 37°29 ', long. 106°16', In 

SE:t sec. 36, T. 36 N., R. 6 E., 3 m!les downstream !rom North Pork and 9 mlles south- west or Monte VIsta. 

Drainage area.- 33.6 square mlles . 

Records available.- May 1935 to September 1941 In re ports or Geological Survey. Aprll 1919 to September 1924 and May 1935 t o September 1941 In reports or State engineer. 

(No winter records. ) 

!:xtremes .- Maximum discharge during year, 161 second-teet May 13 (gage height, 2 .63 t eet) ; minimum discharge observed, 1.3 second-teet Nov. 8 (discharge measurement), but may 

have been less during period or no r eco rd . 1935-41: Maximum discharge, that or May 13, 1941; minimum not determined. 

Remarks .- Records excellent except those below 10 second-teet, which a re good . Di ve rslons 

---aiiOve stati on t or Irrigation . 

Discharge. in second-teet. water year October 1940 t o September 1941 

Day Oct . Nov . Dec . Jan . Feb . Mar. Apr. llay June July Aug . Sept . 

- 1 3.6 2 . 8 3.8 16 68 48 14 6 . 8 

2 3 . 6 3.0 3.6 18 89 48 13 8.4 

3 3 . 4 3 . 6 21 63 43 11 8 .1 

4 3.2 4.0 22 88 40 11 6.1 

5 3.4 4.3 22 69 41 11 5 . 8 

6 3.4 4.3 34 88 39 11 5 . 1 

7 2 . 8 5.1 45 89 34 9 . 8 4 . 9 

8 2 . 8 tl.3 4 . 3 57 74 37 11 5 . 8 

9 2.8 5 . 1 78 84 34 16 6 . 4 

10 2 . 5 8.4 98 63 32 13 5 . 8 

11 2 . 6 5.8 107 68 32 11 5 .4 

12 2 . 6 6.8 121 81 31 13 4 . 9 

13 2.6 7 . 7 137 55 30 12 4 . 9 

14 2 . 6 7.4 140 54 28 11 7 .4 

15 2 . 5 8 .1 117 58 26 13 5 .4 

16 2 . 5 S . 4 109 61 24 11 4 . 9 

17 2 . 5 9 . 6 105 68 22 14 5 . 1 

18 2 . 3 8 . 1 109 75 22 13 6.8 

19 2 . 1 8 .8 101 90 28 l.l 6 .4 

20 2.3 8 . 4 S4 90 26 1.1 5 .4 

21 2.3 7.1 64 89 22 ll 6 . 1 

22 2 . 1 6.1 67 83 19 10 8 . 1 

23 2 . 1 6.1 70 84 18 9.5 8.4 

24 2.1 5.8 81 86 17 8 . 8 8 . 1 

25 2 .1 8 .4 88 78 17 8 . 1 5 .4 

26 2 . 1 7.1 90 73 17 8 .1 4.9 

27 1.7 2.6 9 . 6 86 70 17 7 . 7 4 . 7 

28 2 . 1 2.5 ll 82 64 16 7 .4 4.9 

29 2 . 5 2 . 5 12 71 58 15 8 . 1 9 . 8 

JO 3 . 2 2 . 8 14 68 50 H 8.4 6.8 

31 2 . 5 I 3 . 2 66 16 7 .4 

Month Second- Ma.xiiiU. IUnimua lie an Runott in root-days acre- reet 

October ............ . . . . . . . . . . . . 81.0 3 . 8 1.7 2 . 61 161 

No·vember . . . . .... . . . . ... December ... 

------- ------- I ------- Calendar year - - ------- ---~-- -- ~-

January ..... ........ .. •. . ~ .. . . .. .•..•.. .. . . - I February ............ . ... . • . . ... •..• . •.... - ! March 27 - 31. ........... . . . . . . . . . . . . . 13 . 8 3 . 2 2 . 5 2 .72 27 Apri l. ........... .. ....... ................. 206 . 6 l4 3 . 6 6 . 89 HO Way . . ...... . .. ...•.. .....•..•....•. .•. .. . . . 2,368 140 16 76.4 4, 700 

June .. . .... ...•. .. .. .. . ..•.. •. . . .• •.• . .. .. . 2,002 90 50 69.4 4,130 

July ... . ..... .......... . . .. .... .. ... . 850 48 l4 27 . 4 1,690 

August . . . . . . .. . . . •....• 335. 3 16 7 •• 10 . 8 865 

September .. ..... . •... ...... ..... 176. 0 9 . 8 4.7 5 . 87 349 

1---- Water year .. . ...... .. 

t Discharge measurement. 
RIO ORAND!: BASIN 183 

Closed basin In San Lute Valley, Colo. 

Ke r ber Cr eek at Ashley Ranch , near VI lla Grove , Colo. 

Location.- Wate r -stage recorder, l a t. 38°15 ', long. 106°08 ' , In sec. 7, T. 46 N., R. 8 E., a t Ashley Ranch, 10 miles we st o r VI l la Grove. 

Dra inage area.- 38 sQuare miles . 

Records available.- May 1936 to September 1941 In r epor ts or Geological Survey. June 1923 t o September 1926 and May 1936 to Septembe r 1941 In reports o r State engi neer. (No winter records most years.) 

!':xtremes .- Maximum discharge during year, 407 second-teet May 14 (gage height, 3 . 88 t eet) , from rating curve e xtended above 150 second-teet; minimum dally recorded , 1.9 second- teet Nov . 5 , Aug . 26, may ha ve been less during pe r iod or I ce street. 1923- 26 , 1936-41: Maximum discharge, that or May 14 , 1941; minimum dally r ecorded, 1 . 2 second-rest Aug. 14, 16 , 17, 1940 . 

Remarks .- Reco rds tal r. No d ivers ion above stati on. 

Discharge, in second- teet. 

D8.ll Oct. Nov. Dec. Jan . Feb . 

1 4. 9 2. 4 

2 4. 0 2 . 6 

3 3. 7 3. 2 4 3 . 5 2. 7 5 4.0 1.9 

6 4.0 • 2 . 6 

7 3. 7 2.3 

8 3. 7 2.4 

9 3. 7 2. 7 

10 7 2. 4 

11 3. 7 

12 3.7 

13 ~-7 

14 3.7 

15 5 

2. 3 2 . 0 2. 5 

16 3. 5 17 3 . 6 18 3. 7 19 3.7 20 3. 7 2. 6 

21 3. 2 

22 2. 9 

23 3. 2 

24 3. 2 

25 3. 6 

26 3. 7 

27 5. 1 

28 3.5 

29 2 . 7 

30 3. 5 

31 2 .7 

Month 

October . . ...... ..... .. . ................... . November .... . .......•..•.•..•.••.•.. .... ... 

Decembe r .......... . ... . . . •....... . .. o •• • ••• 

water year October 1940 

Ma r . Apr . llay 

4.9 20 4. 3 25 4.3 30 4.3 31 5. 4 32 

6. 2 52 6. 6 78 6. 6 114 8.5 116 7.1 126 

5. 7 132 e . o 1~ 

3.5 e . o 250 e .s 363 e.5 327 

9 . e 259 9 . 4 237 s .o 212 7 . 5 166 7 . 5 126 

6.6 105 5. 7 93 5. 4 eo 5. 7 75 6. 6 83 

• 3 . 2 9.4 90 

S . 6 13 131 

3. 7 13 132 

3.7 12 122 

4.6 17 117 

13 117 

Second- Ma.xiaum toot-days 

112 . 5 5. 1 77 . 2 

~ 

to September 1941 

June July Aug. Sept. 

122 4l 9 . 2 2. 7 119 37 9.1 2. 7 126 ~2 9. 0 2.3 124 28 s.8 2.1 126 27 S . 4 2. 1 

122 27 11 2. 4 124 28 11 2.7 132 28 9.6 3. 2 109 28 9 . 4 5. 4 105 30 9. 4 6. 6 

97 24 8 . 9 5.1 88 25 8 . 6 4. 9 S5 27 e . 2 4. 9 90 26 8 .o 4. 9 102 24 7 . 5 4.9 

116 22 4 . 6 4. 6 114 20 4. 6 4. 9 114 19 6.2 5.1 114 19 5. 7 6. 1 109 1S 4. 9 5.1 

107 17 6. 2 5.4 104 15 4 .9 7 . 1 102 l4 2 . 9 5.4 97 13 2.6 S.9 95 13 2. 3 s .o 

76 l4 1.9 7. 1 72 1~ 2. 3 6. 6 M 11 2.1 6.6 54 10 2. 4 e . g 4e 9 . 4 3.2 e . g 9 . 2 2.7 

lUniiDWD lie an Runott in ac re-feet 

2 . 7 3.63 223 2. 57 153 2.3 141 

------- ---- -- - Calendar year 

January . ... . . , ..... . ..•.. o • ••••• • o • • o • •• - •• 

february . ........ , . . o • o o. o • • ••• o ••••••••••• 

Ma rch .........• , . . .... o •••••••••••• • o ••••• • 

Ap ril ........ . •.......•..•..•• ••.•..•.... May . ..........•....... o •••••••• -- •• ••••• -

June ..........•.... . ... o •••••••• • o- • • • •••• -

July ... ....... , .... .. .•..... . . . ..• . .•...... August . .... . ..... . ....... o •••••• - •• • •••••• • 

Sep tembe r . .... .... . . ..... ~ .... . ........ - .. . 

Water year 1 940 -41 

62. 0 70 . 0 124.2 

233 . 6 17 3 , 994 363 3,056 132 668 . 6 4l 

195. 6 11 164.6 e . g 

e e19 . 6 36~ 

- ------ 2.0 123 2. 5 139 4. 01 246 4. 3 7.7e 463 20 129 7 , 920 

4e 102 6 , 060 

9. 2 21.6 ~0 

1. 9 6. 31 388 2. 1 5 . 15 307 

24 . 2 17 , 490 

• Winter dlseh.arge meaaurement made on this day . .lf.2.l2.::- st8ge - d1aoharge relotion a.rrected. by lee Mov . 11 to l"'.ar. 25 (no gage- height record). Me gageheight record July 12-29, 31, Aug . 1 - 9 , 12, 13; discharge computed on bash or r ecord t or saguache 

Creole near Saguache . 
184 Rl 0 CRA.NDE BASIN 

Closed basin ln San Luis Valley, Colo . 

Saguache creek near Saguache, Colo . 

Locati on .- \later-stage r ecorder, lat. 38°09 ', long. 106°19' , 1n sec. 11, T. 45 N., R. 6 E., 10 miles northwest or Saguache. 

Drainage area. - 595 square mlles. 

Records available .- August 1910 to September 1912 and October 1933 to September 1941 1n 

reports or tleolog1cal Survey. August 1910 to September 19~ and June 1914 to September 1941 1n reports o! State engineer. (No winter records acme years). 

Extremes.- Max1mum discharge during year, 602 second-teet May 16 (gage height, 2 .54 r est), rrom rating curve extended above 500 second-teet; m1n1mum dally, 20 second-teet or l ese at times during period or 1ce errect . l91D-12, 1914-41: Maximum d1echarge, 746 second-teet JUne 15, 1921 (gage height, 3.45 !set , datum then in use); minimum dally recorded , 14 second-teet Oct. 1, 2, 1933, JUly 15, Sept . 12, 1940. 

Remarks.- Records good except those ! or periods or lee errect or no gage-height record, 

----wnrcK are !a1r. Diversions above station !or 1rr1gat 1on. 

Discharge , in second-teet , water y·aar October 1940 to SepteJDber 1941 

D~ Oct . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

38 

38 

35 

~2 

30 

~3 

~2 

28 

28 

28 

28 

28 

28 

27 

27 

•27 

a27 

&27 

&27 

&28 

a27 ) 

a2ll 

24 

-~ &24 

a28 

a25 

a24 

•22 ·~ 

Nov. 

a22 

•2~ 

a27 

-~~ al52 

•32 

32 

31 

38 

32 

24 

22 

22 

2e 

31 

Dec. 

25 

Month 

Jan . Fob . 

20 25 

October . . .. . . . ..... . , .. . .. . . . . ........ . Hoveaber ... .. . ....... .... ... ... .. .......... . 

Deoeaber . . . . . ... . .... . ...... . .... . 

Calendar year 

Mar. Apr . 

~6 

47 

.. 9 

40 

55 

59 

63 

64 

Secondtoot-days 

861 

897 

775 

72 

56 

52 

55 

68 

eo 

42 

42 

so ~ 

45 

38 

45 

39 

~7 

~2 

32 

32 

34 

~7 

36 

~5 

42 

40 

36 

~9 

47 

63 

86 

66 

77 

78 

105 

125 

108 

110 

151 

175 

206 

243 

290 

318 

361 

477 

502 

H7 

420 

438 

459 

450 

411 

366 

373 

366 

3SO 

4U 

393 

367 

361 

3SO 

318 

Juoe 

309 

~12 

~01 

318 

~18 

312 

315 

420 

432 

356 

~56 

309 

259 

254 

262 

284 298 

~41 

~90 

471 

453 

429 

420 

·~2 

492 

456 

382 

341 

293 

254 

22 

22 

July 

240 

235 

219 

211 

209 

206 

196 

188 

1 96 

198 

183 

190 

203 

190 

178 

168 

166 

156 

154 

180 

U9 

132 

1~2 

130 

128 

128 

12~ 

110 

103 

96 

92 

lie an 

27.8 

29 . 9 

25 

87 

84 

74 

77 

64 

84 

96 

87 

92 

97 

92 

89 

82 

72 

eo 

92 

89 

84 

72 

66 

68 

72 

64 

63 

60 

55 

52 

so 

51 

56 

52 

Sept . 

48 

47 

45 

4~ 

43 

40 

40 

40 

45 

43 

39 

39 

40 

4l5 

45 

42 

40 

45 

45 

46 

56 

54 

e6 

5 4 

48 

46 

« 

42 

46 

66 

Runott 1.u acr~teet 

1,710 

1 ,780 

1 , 540 

January . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 620 20 1 , 230 Februa.ry . . . . . . . . . • . . . . . . . . . . • . . . . . . . . . . 700 25 1, S90 llarob . .......... . . .. ... . ... ... .... . . .. ..... 1,395 64 45 . 0 2 ,770 

April .......... ........ ... . . .. ... . . .... . ... 1,~1 72 32 46 . 0 2,740 

lloJ . . . . . . . . . • . • . . • . . • . . • . . • . • • . • . . . . • .. . .. • 9. 589 502 77 309 19,020 June ........... ... .. . ........ . . . . ... ..... . . 10,569 492 254 352 30,960 

July .. .. .. .. . . . .. . .. . .. . . .. . .. . . . .. . . . .. .. . 5 , 179 240 92 167 10,270 

Auguat ... ............. . .... ... ...... . ... 2 , 303 97 50 74 . 3 4,670 

Septeaber ............. .......... . . . . . ...... 1,370 66 39 46.7 2,720 

Water year 1940- 41 r-----1------r-----r-----+----- 36,639 602 97.6 70 ,700 

• Winter diecbarge •aeu.rement ude on thia c1&y. a lo l•se-be1gbt re cord; d1•cha_rge cc.puted. on baeh ot recorda tor Xerber Oreek near Villa Oro••· lote.- 8tage- d1aoba.rge relation atteotec1 b7 lee Kov. 13, 14 , Xov. 21 to Mar. 26 (no gage-height 

r.oor:aT. 
RIO GRANDE BASIN 185 

Closed bas in in San Luis Valley, Colo. 

North Crestone Creek near Crestone, Colo. 

Locati on.- Water-stage recorder, lat . 38°01', long. 105°41', in sec . 5, T. 43 N., R. 12 

E., H mlles upstream !rom Crestone and 3 miles upstream !rom confluence w1 th South 

Crestone Creek. 

Dr ainage a rea.- 10.7 square "ml]fts. 

Records available .- May 1936 to September 1941 (no winter reco rds). 

Ext~en!es .- Maximum discharge during 'year, 375 second-teet June 22 (gege height, 2 .90 teet ); lrilnlmum dally recorded, 3.2 second-teet Apr. 21, 22, but may have baen l ess during period or no record . •; 1936-41: Maximum discharge, 735 second-teet Aug. 6, 1936 (gege hei ght, 4 .33 fe et) , by slope-area me thod ; minimum dally, 2.1 second-teet Aug. 19, 24, 1939. 

Rema rks.- Records !air. No diversi on above station . 

Discharge , in second-teet. water year Oc tobe r 1940 to Sept_e_,.r 1g.u 

~ Oct . Nov. Dec . Jan . Feb . 

1 u 4.9 

2 1~ ~-2 

3 1~ ~-1 

.. 12 4.9 5 12 4. 2 

6 12 ... a 7 11 4 . 6 8 11 4 .6 9 9.9 ~ 

10 9.6 .. ~ 

11 a . a 6.2 12 a . 2 4.7 13 7.6 4.6 14 7-2 b4.5 15 6.7 4.1 

16 6.6 4.0 17 6.4 4 . 0 18 6.4 b4.0 19 6 .4 b4.0 20 6.4 b4.0 

21 6.1 b4.0 22 .8 b4 . 0 23 6 . 8 b4 .0 24 5 . 8 b4.0 25 6 .7 b4. 0 

26 5.7 b4.0 27 6 .7 b4 . 0 28 6 . 0 b4.0 29 6 .4 b4.0 30 5 .4 b4.0 31 ~ 

Month 

Ootober ......•......... . ............. . ..... NoYeaber ..........•... . ..... . •..•.......... 

Deoeaber .............•..• , . . .... . .....•.... 

Calendar year 

January ...... . . ....• .•. . . .. . . . •... . • . ...... February ................ . . . ..... . .... . ..... . Waroh . ....... . ....... ... o •••••• • ••••••••••• 

April ...........•..•.... . . . •..•.. . .... ... .. MAy . •.••••••••••••••.• . .••.......•.• .. ••.. 

June . ......... . . o ••• •• •• o • • • • ••••• •• • ••• • •• 

July ..........•.. • . •..•. . . . . ..•.. . .. . . . . . .. August ...... . . . ... . ...... . . . . . .... . ...... .. 

War . 

Seoondroo~a,ys 

260.9 

130.0 

1~7 0 

2 ,g76 

, , 7oe 

2,0.3 

522.9 

Apr . 

4 . 1 ~.8 

3.S 

~.7 

. ~.7 

~.7 

3 . 7 

5 

6 

7 

3 . 6 3.8 

3 . 8 ~.7 

3.7 

~.6 

~.6 

~.a 

~.6 

~.6 

~. 2 

3 . 2 

~.5 

~.8 

4.9 

6.0 

7.8 

a .s 

9 .9 

12 

IIAy 

15 

1S 

24 

24 

25 

~3 

45 

57 

76 

a9 

99 

104 

130 

148 

122 

122 

1« 

170 

144 117 

105 

101 

101 

108 

125 

143 

1~7 

119 

106 

108 

119 

12 

170 

27a 

112 

29 

Juno July Au& . Sept . 

~2 112 29 e . 1 132 109 28 7 . 7 

1~2 101 26 7 . 2 

1~2 10~ 24 7.0 

130 88 22 6.6 

1~2 S2 21 6.4 137 a• 21 s.a 127 a2 21 6 . 2 109 7a 21 6 . 0 100 76 1a 6.a 

95 66 21 6 . 2 94 62 1a 5.2 94 60 16 5. 4 103 60 1a 5.a 

125 58 2~ 5.4 

146 58 21 5.2 179 58 20 6.0 236 65 17 5.0 278 63 15 5.0 

211 64 14 5 . 0 

194 58 13- •• a 

204 58 12 6.0 245 55 12 a . 1 

228 52 11 6.6 

255 51 9 . a 6 .6 

196 47 9.5 8 .a 170 45 9 . 0 6.6 162 48 a . 6 6 .6 

124 40 8 . 5 12 114 34 a.6 ~4 ~1 8 . 1 

Mean Runoff 1n acre-teet lUniau. 

a .o9 49a 4.~3 258 

~-2 4.57 272 

15 96 .0 5 , 900 

94 157 9,330 

~1 85.9 4,050 a.1 18.9 1,040 

Septe•ber ........•. • ..•.... . .. . ..• ... ...... ---197 .1 -+-----+---- 14 4.a ----if- 6 . 57 ---591 

Water year 
J 

, 

I 

J 

I 

J 

J 

J 

5 

186 RIO GRANDE BASIN 

Closed basin !n San Lu!s Valley, Colo . 

Carnero Cr eek near La Garita , Colo . 

Locat i on . - Water-stage recorder, l a t . 3? 0 52 ', E., 3 miles northwest o r La Gar! ta . long . 106 "20 ', !n sec . 26 , T. 42 N., R. 5 

Drainage a rea .- ll? square miles . 

Records available .- Octobe r 1933 to Sep tember 1941 !n reports o r Geo logical Survey . Apr !I 1919 to September 1941 !n reports o r State en g ineer. (No winter records most year s . ) 

Extremes. - M:lx!mum discharge during year, 350 second-feet May 14 (gage height, 2 . 21 reot), 

from rating curve extended above 180 seco nd- fe e t ; minimum dally , l.O second- foot or l ess at times during period or lee effect. 

1919- 41 : Maximum dally discharge , 500 second- feet Apr . second- f oot July 9, 1940 . 14, 1924; mi nimum dally, 0 .5 

Remark s . - . Records fa!r . D! ve r s i ons above s tatio n f o r 1rr1gat1on. 

Discharge , i n second-teet, water year October 1940 to September 1941 

oa, Oc t . 

l 2. 7 2 3 . 0 

3 2 . 5 

4 2.3 

5 2. 3 

6 2. 8 

7 2. 8 

8 2. 5 

9 2.4 

10 2. 4 

ll 2. 4 12 2. 3 13 2.4 14 2. 4 15 2. 4 

16 2. 4 17 ~ 

18 2.3 19 2.4 20 2. 3 

21 2 . 2 22 2.3 23 2. 3 24 2. 3 25 2. 3 

26 2.3 27 3. 2 28 2. 8 29 2. 4 30 2. 7 31 2. 5 

Octobe r. 

November . 

December . 

Nov. 

a2 . 4 a2 . 6 &2 . 6 a 2 . 6 al. 9 

•a2 . 2 2. 5 2. 6 2. 2 

~ 

1. 6 2. 2 2. 3 

1. 6 

Calendar year 

Dec . Jan . 

1. 5 1 . 0 

Mont h 

January ...... . . . .. . . .. ..•.... . 

Feb . 

1.0 

(•) 

February . ......... . •..... . . .. .. ... . . 

Ma rch. .. . ..... . ..... • . .. .... . . ·. April . . . .. . . . .. • .. . .... . . . • . . • .... • . . • . . . . . May. . . . . . ....... . .•.... . . . .... .... June .... . . . .. . . . ....... . ..... •. ... .... 

July .. . . . .. . .. • .. • . August .. . .... .. ..... . . . . . . . 

Septe111ber . .. . .... . . . .... . . . . . . . . . 

Water year 1940- 41 .. . 

Mar. Apr. Way 

a7 . 0 25 a6 . 4 0 

a6 . 0 3S a9 . 0 41 9 . e 43 

8. 4 55 9 . 0 68 10 88 12 121 ll 147 

11 178 11 201 l~ 264 11 261 •10 222 

1. 2 8 . 7 181 9 .4 166 S. 4 172 7 . 1 139 s . o 139 

6 . e 114 6. 4 126 5 . 8 147 6 . 1 144 6 . 4 139 

(•) 9 .4 131 14 124 16 124 19 134 26 116 

102 

Second- roo t-days Maxi mum 

76 . 6 57 . 0 46 . 5 

31. 0 28 . 0 37 . 2 302 . 1 :5, 970 2, 57 4 736 

435 . 0 194.3 

8 ,487.7 

3 . 2 2. 6 

26 

261 142 

~4 

23 

16 

261 

• Wtntt r dhcharge meas urement made on t h h day . 

a No gage - height r e cord; discharge c omputed on baela of 

Stage - dhcharge re l a t i on af f ected by l ee No \• . 14 rec orda to ~r . 

June J uly Aug . Sept . 

107 ~· 19 74 1 102 ~1 1S 6 . S 96 25 14 6 . 1 100 23 14 6 . 6 88 23 13 5. 2 

86 22 23 5. 2 94 23 20 a4. 8 142 22 14 a4. 8 116 24 20 a4 . 6 114 26 23 a' .. 6 

121 24 18 a4. 4 94 32 16 ...... 86 32 16 4. 4 84 30 13 4. 6 86 0 13 4. 8 

80 27 13 4. 6 82 26 14 4.S eo 22 al4 6 . 2 S2 22 al3 5. 2 77 22 •12 5. 6 

74 19 al3 6 .1 67 18 al3 6. 1 88 18 12 14 77 17 13 9 . 0 88 19 12 7 . 7 

68 23 10 7 . 1 58 23 9 . 4 6 . 8 53 22 8 . 7 6 . 4 45 20 9 . 4 13 39 19 7 . 4 15 l8 7 . 1 

Minimum Wean Runo ff i n acre-t'ee t 

2 . 2 2.47 152 1 . 90 113 1 . 5 92 

1. 0 61 1. 0 56 1. 2 74 5 . 8 10 . 1 599 26 128 7 , 8r/ Q 

39 ss.s 5, 110 17 23 .7 1 ,460 

7 .1 14 . 0 863 4. 4 6 .48 386 

23 . 3 16,840 

tor Ke rber Creek near Villa Grove . 

31 (no gaao-boight record} . 
RIO GRANDE BASIN 187 . 

Closed bas!n !n San Lu!s Valley, Colo . 

La Gar! ta Creek near La Gar! ta, Colo . 

Location .- Water-stage recorder, lat . 37°49 ' , long . 106 "18 ', !n sec . 10, T. 41 N. , R. 6 E. , 4 mfles southwe st or La Gar! ta. 

Drainage area .- 61 square mlles. 

Record.s ava!lable .- October 1933 to September 1941 !n reports or Geological SUrvey. Apr!l 

1919 tO September 1941 !n reports or State engineer. {No winter records most years.) 

Ext remes.- Maximum discharge during year, 457 second-teet May 16 {gage height, 5.11 re st) , !rom rating curve extended above 220 second-teet; m!n!mum dally, 0 . 9 second-toot Nov. 11 , 12. 1919- 41: Max!mum discharge , that or May 16 , 1941; mi nimum dally, 0 . 7 second-toot Aug . 29, 1940. 

Remarks .- Records !a!r. O!ver s! ons above station t or 1rr1gat1on . 

Disc harge . in second-feet , water year Oc tober 1940 to September 1941 

Day Oct. Nov . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

3 . 8 al . S 3 . 3 a 2 . 2 

2 .5 a 2 . 8 2 .5 a2 . 7 2 . 6 a2.6 

4 . 0 •a3.5 8 3 . 5 3 3 . 5 3 , 0 3 . 0 2 . 8 2 , 5 

2 . 6 

~ 

2 , 3 

2 .3 

.~ 

2.3 

2 .5 

2 . 5 2 . 5 2 . 5 

2 . 5 2 . 5 2 . 6 2 .1 

2 . 1 

2 . 0 2.6 

~ 

1 . 6 2 .1 

1. 8 

. 9 

,9 

1 . 0 

} '·' 

} '·' 

Dec. J an . f'eb. 

1 .5 2 . 0 2.5 

Month 

October .. .. .................... . ...... .. .. . Noveabe r .. . ... . .. . ........• . ... . ........... Deceabe r .. ......... .. e •• •••••••• ••••••••••• 

Calendar year 

War. 

3 . 2 

• 6.3 

4 . 7 

5 . 0 4.7 

5 . 0 

Seoondroot~a,y s 

7P . 8 5~ o 

46 . 5 

Apr . 

6 . 7 5 . 6 6 . 0 7 . 1 8 . 6 

6 . 3 6 . 3 6 . 7 8 . 6 10 

8 . 6 10 

10 

8 .6 

ll 

10 

10 

10 

8.2 

7 . 1 

8.2 

7 . 9 7 . 9 8 . 6 10 

16 

19 

2 1 

28 

29 

May 

3 2 

36 

41 

56 

51 

75 

92 

122 

141 

125 

166 

222 

286 

348 388 

398 

392 

392 

368 

297 

&230 

a190 

• 205 

al95 

al60 

al43 

al40 

1~9 

144 

134 121 

Maximum 

4 , 0 

3 . 5 

J une 

122 

120 

132 

128 0 

133 9 

156 

118 

99 

99 

88 

82 

82 

86 

91 

10 ~ 

116 

127 

110 

102 

96 

114 

114 

9? 

95 

87 

78 

69 

61 

Winimua 

1.6 

.9 

Ju l y Aug. Sept . 

54 

49 

45 

44 

·~ .. 

40 

34 

6 

9 

~~ 

~6 

~~ 

2 

27 

25 

22 

22 

24 

24 

19 

18 

18 

16 

18 

22 

18 

17 

l4 

H 

14 

Mean 

2 . 57 1.80 

1 . 5 

l4 

12 

11 

10 

10 

H 

13 

15 

26 

~1 

17 

16 

21 

12 

12 

H 

H 

16 

12 

10 

12 

H 

12 

10 

10 

8. 7 9 . 0 8 .'7 9 . 5 10 

8 ,4 

7.4 

7 .4 

7. 1 6 . 8 6 .4 

6 . 1 

5 . 8 &.5 . 7 

as.e a5 .6 

a5 . 7 

5 . 8 6.1 

6.8 

6 . 4 

s . 8 6 . 1 6 . 4 

6 . 1 6. 1 

6.1 

7 . 1 11 

8 . 7 7. 4 

6 . 8 6 . 1 5 . 5 6 . 4 11 

Runor r iD ao re- reet 

158 

107 

92 

January ........... .... ........ . ............ 62 . 0 2 . 0 ~~ 

~~:;;:~? :::::: :::::::::::::: .: ::: ........ . 16~ g .~ ~1 216 

Ap ril. ... . . . . ...... .. .. , . .................. 3 20 .0 29 5 . 0 10 . 7 ~~~ 

~~~ ::: ::: ~:: :::::::: :::::::: :::: ::::: ::~~ ~= ~i ig: t~~ ~~~ai ::::::: :::::::: :::::::::: :::: ::::: m.~ g~ 1

: .4 ~g :g 8 18 

Septe•ber . .. . ................•. ............ l-_ _:2:.:0:.::1:.:. · .:. 3+ _ ___:1::1:._-l---...:5:..:·.:.5-j---6::.. • ...:7..:1-f--::-3-9-:- 9 

Water ~98 ~0. 8 22 ,320 year 1940-41 11,202 . 8 

: !n!~e~~:i::~g~e::~~r~~=~~a~:e o~ ~:!~ ::'but a of recorda f or Cam ero Creek nea.r La Garita. 

~- St age-d1aoharge re~at1on at:t'ectod by 1oo Nov . 14 to Mar. 26 (no gage- he ight record) • 

488588 0 - 43 - 13 
166 RIO GRANDE BABIN 

Al amosa Creek above Terrace Reservoir, Colo . 

Locat i on .- Water-stage recorder, lat . 37°23 ' , l ong . 106 °21 ' '· 1n sec . 6, T. 36 N., R. 6 E., 3 lrilles upstream rrom Terrace Reservoir Dam and 15 m1les nort hwest or Capulin . 

Drainage area .- 107 sQuare miles . 

Records available .- September 1911 to June 1912 and Oc t ober 1934 t o September 1941 In reports or Geological Survey . April 1914 to October 1919 , October 1923 to September 1927 and October 1934 to September 1941 In re por ts or State engineer. (No winter r ecords most vears. ) 

Extremes.- Maxlmlllu discha rge during year, 1 , 600 second-t ee t May 13 (gage height , 4 .20 t eet). rrom rati ng curve extended above 1 ,100 second- t ee t ; mlnlmum discharge , 12 second-teet or l ess at tlmes during pe rl od or l ee street . 1911-12 , 1914-19 , 1923- 27 , 1934-41 : Maximum d ischarge , 5 , 200 second- t ee t Oc t. 5 , 1911 (gage height, 11 . 0 teet, datum then ln use , !rom tloodmark). computed by we lr 

formul a ; mln1mum not det ermined. 

RemarkS .- Records good except t hose tor periods or lee ertect or no gage-height reoord, ---wnrcli are ratr. No regulati on or diversion . 

Discharge , i n second-teet , water year Oc t obe r l Q40 t o Septembe r l9U 

Da Oct . Nov . Dec . Jan . Feb . War. Apr. llay J uno Jul y Aug . Sept. 

1 <l8 26 107 709 834 139 67 2 47 26 114 782 612 129 &6 3 44 2& 137 864 812 120 &3 4 40 28 143 S72 818 108 62 5 42 27 168 87 2 667 116 49 

6 91 28 239 811 679 124 48 7 77 26 319 774 513 132 40 8 88 (•) 26 420 696 640 154 46 9 60 • 27 688 648 496 188 46 10 56 29 787 478 484 139 46 

11 52 34 898 425 469 134 43 12 45 32 1, 070 420 48 4 124 41 13 H 31 1, 330 462 442 112 u 14 40 29 1 , 290 512 498 124 97 15 37 31 1 , 0 40 564 370 268 82 21 18 12 14 16 16 36 36 880 692 330 164 77 17 34 39 1,0!0 798 339 144 72 18 3 2 40 1, 100 1,0 20 488 166 89 19 31 38 1,020 1 , 290 488 ne eo 20 30 37 724 1,210 H7 110 133 

21 29 35 818 1, 200 68 6 104 120 22 28 36 512 1,170 386 97 9 4 23 ~:; : 34 524 1,200 328 89 89 24 33 899 1,170 308 79 86 25 u 38 783 1,1eo 278 73 eo 

26 28 42 968 1,060 244 89 73 27 27 66 928 928 218 88 88 28 28 89 787 898 198 62 ,88 29 25 91 612 7 44 174 82 110 30 26 98 688 667 180 69' 104 31 25 808 144 82 

Yont h Seco·nd- Mu.1aum JUnimu. ....... Runott in too~ays acre-teet 

Oc tober .. .. . . . . . . . . . . . . . . . . . . . . 1 , 240 91 u 40.0 2,460 Novembe r ... . ... .. .... ...... ...... 630 21 1 , 280 Decembe r .. .. . ................ ..... 588 18 1. 110 -- ----- Cal endar year .................... ------- January . .. . .. ·· ························ 372 12 768 February ..... . ................ . ............ 392 14 778 Marob . . ......... • . .•.......•..........•..•. 49 8 18 984 April ............ • ..•.... . .............•.... 1, 138 96 26 67 . 9 8,250 llay ........ . . . ..•..• . ......•.......•..•.... 20, 709 1,:sao 107 888 41,080 June ......... . . . •..• .... •. . • .... . ..•....... 24,. 879 1,290 420 8 99 49 ,350 July . ...... . ......... . ... ... ............ . .. 12 , 7Z4 667 H 4 411 26,260 August . .................................. . . 3,698 268 82 116 7,.130 

September . ................. , ............... 2 , 118 133 40 70.5 4,200 

Water year 1940-41 ..... ... ..... ...... .. 88, 868 1,330 189 138 800 

• Winter dlaoharge measurement made on thle day . Rot e .- Jfo s•ae -height record Oct. 2e to NoT. 7, Apr. 1-20, Sept . 7 , 8, 1&, l ei 20-23, 29, 30J <11•-

=~~=~~~::;:e !:~!: ~~r:~:e~l:;~~=e a:~e~e::ni..r-:'d ~e{:~~: h;~lo~e:o;: . at Platoro, Oolo. 
RI.O GRANDE BASIN 189 

Alamosa Cr eek below Tez:race Reservo! r, Colo . 

Location .- Water-stage recoroer, lat . 37°21 ', long. 106°17' , !n sec . 23, T. 36 N., R. 6 

E. , haH a m!le downstream !rom Te rrace Rese rvoir and 11 m!les northwest or Cspul!n. 

Drainage area.- 116 square m!les . 

Recoros available .- Apr!l 1909 to June 1912 and October 1933 to Septembe r 1941 !n reports of Oeolog! cal Survey. Apr!l 1909 to November 1912, Apr!l to Octobe r 1915, February 1917 to October 1 20 and Apr!l 1922 to September 1941 !n reports or State engineer. 

Average discharge.- 23 years (1909-10, 1915-18, 1922-41 ), 123 second-teet. 

Extremes.- Maximum discharge dur!ng yea r, 1,240 second-teet June 20 (gage he!ght, 5 .47 t ee t); m!n!mum da l ly , 2.8 second-tee t Mar. 30. 

1909-12, 1915, 1917- 20 , 1922-41 : Maximum dally discharge, 1,450 second-rest 

June 16-18, 1917; m!n!mum dally, that or Mar . 30 , 1941. 

Remarks. - Reco ros good except those ror per!od or no gage-he!ght recoro, wh!ch are ra!r. --,;ro(!Tvera!on above station . Fl ow regulated by Terrace Rese rvoi r (capac ity, 17,700 

acre-reet). 

Oisobarge , in second-teet. water year Oc t ober 1940 to September 1941 

DOJ Oot . Nov . Dec . Jan . Feb . Wa r . Apr . Mey June J uly AU&. Sept . 

1 H 23 3 3 3 3 3.4 108 742 501 342 150 2 48 23 3 3 3 3 9 . 6 112 738 509 342 153 3 53 24 3 3 3 3 16 112 738 517 334 162 4 58 24 3 3 3 3 16 130 738 5 21 296 156 5 57 23 3 . 3 3 3 15 145 724 529 292 153 

6 69 23 3 3 3 3 15 191 857 590 292 147 7 83 23 3 3 3 3 21 219 662 585 289 142 8 85 23 3 3 3 3 26 290 652 565 308 131 9 85 23 3 3 3 3 28 313 453 565 314 119 10 85 22 3 3 3 3 26 296 303 565 314 111 

11 83 21 3 3 3 3 28 326 240 569 310 91 12 81 20 3 3 3 3 29 430 240 545 296 69 13 79 20 3 3 3 3 31 5 64 240 465 286 69 14 81 20 3 3 3 3 44 756 244 417 261 69 15 49 19 3 3 3 3 49 788 244 377 258 69 

16 49 18 3 3 3 3 49 778 377 338 244 69 17 49 18 3 3 3 3 54 796 389 272 240 69 18 44 18 3 3 3 3 57 815 517 298 237 69 19 39 18 3 3 3 3 57 810 865 357 910 81 20 39 18 3 3 3 3 5 7 810 1 , 060 361 240 87 

21 39 3 3 3 3 3 57 688 1,170 385 237 87 22 33 3 3 3 3 3 55 659 1,1 20 417 224 85 23 28 3 3 3 3 3 55 659 1,100 441 198 78 24 28 3 3 3 3 3 55 654 1 , 100 44 5 195 78 25 28 3 3 3 3 3 55 659 1 , 130 441 192 79 

26 28 3 3 3 3 3 57 639 1 , 110 441 189 B3 27 26 3 3 3 3 3 57 675 925 429 189 83 28 26 3 3 5 3 3 57 724 855 417 189 B3 29 26 3 3 3 3 . 1 63 765 64 8 393 189 79 

30 24 3 3 3 2. 8 85 760 545 385 177 76 

31 23 5 3 3.1 75 2 342 153 

Month Second- Ma::ltifiWI Mi.n.i•ua Mean Runotr 111 

root-days acre-teet 

October ...... • . . .. . ..... . .......• . . . ....... 1,547 85 23 49 . 9 3,070 

November .... . .. ........ ... . ..•..• . . . ....... 451 24 3 15 .0 895 

Decembe r ..... . . , ........•..•.. . . . ...• .. . ... 93 3 3 3 184 

Calendar year 1940 ...... ... ...... .. . 24 , 283 403 3 66.3 48,180 

------- January ........ .. . ... ...•.. . · · ··•··•···· ··· 93 3 3 3 184 February .... . . .. , ..•.......• . .•.•...... ···. 84 3 3 3 167 

Maroh . .. . . . . . ... , .. •.. ... . .... , . . . .... ..... 93 . 0 3 . 1 2. 8 3.0 184 

April . .. . . . .. . . . .. .•..•.... . ..•. . , .... .. . · · 1,225 .0 85 3 . 4 40.8 2 ,430 

lley .. . .. . .. .. ••.•..•..•. .... ..• .. •.... . .... 6,~43 815 lOB 527 32,4 20 

Ju.ne ...... .. .. . ....• .. . . ...... •.. ...... .. .. 20 , 526 1,170 240 684 40 , 710 

J uly ..... .. .. . •... .... • .. ..... • . . . ......... 13 , 982 590 272 451 2:7,730 

August. ... . . . . . . . . . ............ , .. , ..•... ... 7 , 865 3 4 2 153 254 15 , 600 

Sept ember . .... .. . ...... ..• .... . . . • .. •... .. . 2 , 977 162 69 99 . 2 5 , 900 

Wate r year 1940-41 ............... 65 , 279 .0 1 , 170 2 . 8 179 129, 500 

1!!!1!..:,- Ho gage-height record Jfov. 

Terrece Re s ervoir. 

12 to 11a r. 28; d.iaoharge COJ11puted on baa h ot ga to open1nge at 
190 RIO GRANDE BASIN 

''\ra Creek at Gallegos Ranch, near Capulin, Colo. 

Location.- "co rder, lat. 37°09', long. 106°13', l n NEt sec. 32 , T. 34 N. , R. 7 E. • ~vstream from !onner statlon (publlshe<l as La Jara Creek near Capulln, 

Colo . ), 2t miles upstream !rom Canyon <lel Rancho , 11 mlles southwest or Capulin, an<! 

lH mlles <!owns tream rrom La Jara Rese rvol r . 

Drainage area .- 79 SQuare mlles . 

Records avallable.- May 1936 to September 1941 (no wlnter records) . 

Extremes .- Maximum <llscharge <lurlng year, 538 secon<l-reet May 13 (gage llelght, 5.39 !eet); 

minimum <Ially recorded, 5.5 second-feet Nov. 5, but may have been less duri ng pe riod 

o! no record . 1936-41 : Maximum discharge , 653 second-!eet Apr . 15 , 1937 (gage height, 5 . 94 !eet); 

minimum dally recorded , 3.5 sec)nd-!eet Nov. 28 , 1936 . 

Remarks .- Records good except those !or period or no gage-he ight record, whlch are !alr. 

----smarr di versions above sta t ion for l'rrl gatlon . F'low regulated by La Jara Reservoir 

(capacity, 14,040 acre-feet). 

Discharge , in second-tee.t . water year Oc tobe r 194 0 to September 1941 

Day Oct. Nov . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

7.9 6 . 6 

7. 2 6 . 9 

6.9 7. 2 6 .9 7.2 7 . 2 5 . 5 

8.2 6.6 7 .9 a6. 6 

7 . 9 a7.0 7 . 6 7 . 6 

7.6 

7. 2 7.2 

7 .2 

7. 2 

6.9 

6 . 9 6 . 9 6.9 

7 . 2 

7.2 

7. 2 

7 .2 

6 . 9 7 . 2 

7.2 

e. 2 7 . 9 

7 .6 

8 . 2 7,2 

October . .... . November 1-8 December .... . . 

Calendar year 

Dec . Jan . Feb . 

Month 

January ... . . .. • . .•.. . ....• .. , . . February . .. ..... . .•. .. ...... .. ..• . ...... ... 

March . . ..........•. . 

Apri l. .. ... . .. .. .. ... . .... .... ......... . . .. llay .... .. ........... .. .. .. 

June .. . . .. ... . ... ... . . . . . . .... . .. . • . ... . July ... . . .. . . •. .• .. August . . ... . ..• . • . . • .. •. . •. . ...... . . 

September . . 

Wa ter year 

Mar. 

Secondroot-days 

228 . 5 

53 . 6 

308.8 

4,979 

1, 227 

378. 6 447.6 

306.7 

Apr . 

a 8 .7 a 8 .4. 

a8.2 

ae.o a9.2 

a 9 . 0 &8.3 

a 8 . 8 o.o 

10 

9 . 2 8.3 

9.5 

8 .6 

9 . 2 

9 . 8 

11 

10 

9.5 

9,2 

10 

9.5 

11 

9.5 

10 

10 

11 

13 

19 

24 

33 

47 

55 

62 

92 

152 

273 

238 

300 

3H 

34~ 

324 

347 

300 

228 

162 

149 

167 

140 

126 

100 

1 56 

131 

105 

101 

96 

91 

94 

83 

77 

60 

Maximu. 

8 .2 

7. 2 

24 

349 

118 

16 

30 

15 

June 

5 4 

49 

49 

47 

39 

36 

H 

118 

1>0 

77 

68 

63 

58 

48 

4 5 

46 

45 

34 

2ll 

25 

22 

21 

19 

1 8 

18 

1.6 

14 

13 

13 

1 2 

Yinimua 

6.9 

5 . 5 

8.0 

33 

12 

9 . 5 8.6 

7.7 

July 

11 

10 

9.8 

9.5 

10 

14 

11 

10 

10 

13 

1 2 

13 

13 

13 

13 

13 

13 

13 

13 

16 

16 

15 

13 

12 

1 2 

1 2 

12 

9.8 

9 . 5 

10 

11 

lie an 

7.37 

6.70 

10,3 

161 

40.9 

12. 2 14.4 

10.2 

11 

9.8 

10 

10 

10 

10 

11 

12 

27 

28 

30 

30 

25 

25 

24 

21 

13 

13 

11 

11 

10 

11 

10 

10 

10 

10 

9.2 

9.2 

8.9 

8 . 9 

8. 6 

Sept . 

8 . 3 8.3 

8.0 

7.7 

8.6 

8 . 9 8,6 

8.6 

0 . 2 

9.2 

9. 5 9.5 

9. 5 10 

9.8 

10 

10 

11 

11 

11 

11 

11 

14 

12 

11 

11 

11 

11 

15 

13 

Runoff in acre-t eet 

453 

106 

612 

9 ,880 

2 ,430 

751 

888 

608 

a No gage-height record; d1echerge computed on baels or one dleeharge meaauremen~ llDQ "enner 

recorda . 
RIO GRANDE BASIN 191 

Trinchera Creek above Turners I!Mch, near Fort Garland, Colo. 

Location.- Watel'-Stage recorder, lat. 37°22 ', long. 105°19', In sec. 2, T. 31 s., R. 71 

w., just upstream from Turners Ranch and 7 miles southeast or Fort Garland . 

Drainage area.- 45 square mlles. 

Records avallable.- October 1933 to September 1941 In reports or Geological Survey. -rprt1 1923 to Sept. 1941 In reports or State engineer. (No winter records.) 

Extremes.- Maximum discharge during year, 478 se1:ond-teet May 15 (gage height, 2.16 teet), 

!rom rating curve extended above 200 second-teet; minimum dally recorded, 9 .1 second- teet Nov. 1, but may have been less during period or no record. 

1923-41: Maximum dIs charge , that or May 15, 1941; minimum not determined. 

Remarks.- Record& good except those tor period or no gage-height record, Whi Ch are rair. 

---,qo-ar ve rsIon or regulation. 

Discharge. in second- teet . water year Oc tober 1940 to September 1941 

Da Oct . Nov . Dec . Jan . Feb . liar . Apr . 118.)' June Jul y Aug . Sept. 

1 l4 9.1 10 21 162 129 39 18 2 12 9.8 10 25 148 122 39 17 3 1 2 11 10 27 155 116 38 15 4 11 11 10 27 158 110 38 15 

5 14 11 10 27 162 104 36 15 

6 14 11 10 37 166 96 34 14 

7 13 11 10 51 169 88 33 13 

8 12 11 10 70 158 85 33 14 

9 11 11 10 87 162 82 33 15 

10 12 12 10 104 176 77 33 15 

11 12 10 129 172 75 32 14 

12 13 10 142 166 75 32 14 

13 13 10 236 162 70 32 15 

14 13 11 310 162 70 30 20 

15 13 11 320 166 65 28 15 

16 13 11 246 172 63 28 15 

17 13 11 217 169 60 27 i5 18 13 11 209 155 58 26 H 

19 12 13 191 138 54 23 14 

20 12 13 141 155 54 24 16 

21 11 9.8 138 158 52 24 16 

22 11 9.8 135 155 48 23 21 

23 11 9.8 126 162 4Q 23 20 

24 11 9 .8 119 169 45 22 16 

25 11 11 122 166 45 21 15 

26 11 12 141 158 4 5 21 14 

27 12 14 176 158 43 20 14 

28 11 14 191 155 43 18 14 

29 9.8 16 169 14>1 41 20 33 

30 11 18 158 138 41 20 26 

31 11 144 4l 18 

Wonth Second- Maximum Minimum Mean Runott in 

root~ays acre-reet 

October .... . . . . .......... . ..... ... ..... 37 2 .8 14 9.8 12. 0 739 

November 1-10 ..... ... ... .. . . .. .. . . . .. .. 107 .9 12 9 .1 10.8 214 

Dece•ber .. . . ....... , ....... . .... . . .. ........ 

Calendar year ...... .. .. .. .. .. ---- --- January ...... . .. .. . • . . . ... · ·· · • · · .. · · · · · · · · · February . .. .... . .... . ..... . .... .... . .. . . 

March .. ....... . . . ..... .. ........... . . . April ... .... ..........•..........•..•...... 33 5 .2 18 g . 8 11 . 2 665 May . . . . .... .. . • ... ....• ..•... .. ... ...• . .... 4 , 236 320 21 137 6 ,4 00 June . ....... ...... ......... .... ... .. ... ..... 4 , 796 176 138 1 60 9 , 5 10 July ... . ..... . • . ...... •..•. .•. •. .•. .. .. 2, 14 5 129 41 69 . 2 4 , 250 August ....... . ... . . . . ..... .. . . . . . . . . . . . . . . . 868 39 18 28.0 1 , 720 September . ... . . . .... . .. 49 2 33 13 16.4 976 

Wa ter year ····· · ·· · ·· ·· ·· Mote.- Ro gage-height record Apr. l-15; cUe cha rge computed on bae1a or weather recorda. 
192 RIO GRANDE BABIN 

Trinchera Creek above Mountain Home Reservol r, near rort Garland, Colo. 

Location.- water-stage recorder upstream rrom rating flume, lat. 37°24', long. 105°32', 

!n sec. 31, T. 30 S. , R. 71 W., H mllee upstream !rom Mountain Home Reservoir Dam and 

4 miles southeast or Fort Garland. 

Drainage area.- 51 square m1 1es. 

Records available.- October 1933 to September 1941 In r eports or Geological Survey. May 

1923 to September 1941 In reports or State engineer. (No winter records most yeare.) 

Extremes.- Maximum discharge during year, 332 second-teet May 14 (gage height, 2.41 teet), from rating curve extended above 160 second-teet; minimum dally recorded, 5.4 second- teet Sept. lL 12 . 1923-41: Maximum dlecharge, 365 second-teet May 24, 1926 (gage height, 1.64 teet, 

sl te and datum then In use); m1nlmum not determined. 

Remarks.- Records good except those ! or period or Ice e!!ect, wh ich are !air. Diversions 

---a:oove station !or Irrigation. 

Discharge , in second-teet. water year October 19'0 to September 1041 

Day Oot . Nov. Deo . Jan . Feb. 

1 8.~ 

2 e.~ 

3 e.~ 

4 e.e 5 9.2 

6 9.7 7 e.e e e.e 9 e.e 10 e.e 

11 e.e 12 e.e 13 e.~ 

14 e.e 15 e.e 

16 e .e 17 e.~ 

18 e . 3 19 e.e 

20 e.e 

21 e . 3 22 7.4 

23 7.e ~ 7.e 25 e.e 

26 e . e 27 e.e 28 9.2 29 e.e 30 e.e 31 9.7 

9.2 

7 . 0 7.0 

7.0 

7.4 

e.4 

•9.2 

9.2 

e.e e.~ 

6.3 

5.5 

5.5 

5 .5 

7.0 

e.5 

7.e 

7.4 

7.0 

e.e 

7.2 

7.6 

7.e 

e.o 

e.2 

7.0 

5.6 

6.4 

e.e 

e.e 

Month 

a. e 7 . 0 7 . 0 7.2 

7.2 

7.2 

7.4 

7.4 

7.4 

7.4 

e.o 

e.2 

e.2 

e.o 

7.0 

5.e 

6.4 

6.e 

6.& 

6.4 

6 . 4 

6.4 

6.e 

7.6 

7.e 

7.2 

6.4 

6.6 

7.0 

7 •• 

7.6 

7 . 6 

7.0 

6.4 

6.2 

6.2 

6.8 

e.e 

7.0 

7.0 

7.4 

7.6 

7.5 

7.4 

7.2 

•7. 0 

6.& 

&.4 

6.4 

6.e 

7.0 

7.0 

&.6 

6.4 

6.2 

6.0 

6.2 

&.4 

6.6 

6.6 

6.5 

5 . 8 

October ... . . .. •. . ........ . .... . ........ 

Nove•be r . . . ... . .... , . . ... . ....... ~ .... . 

6.& 

4 

6.3 

6.0 

5.e 

5.e 

6.0 

6.0 

5.e 

5.8 

6.0 

e.o 

e.o 6.2 

6.2 

6.4 

•a.• 

6.6 

6. e 7 . 0 

7.0 

7.2 

7.6 

e.o 

e.2 

e . 2 e.o 

7.6 

December. ... . . . ..... . . • ..•..•. .. ........ 

Calendar year 

January ........ .......•.... .. . . ..•..•.. February ....... ... .. . .• ... ... . ........ llarob . ........... .. . .................. . April .......... ....•.. . . ......•..•.. . . . . . .. May . .. . ....... .. ...... . .. .. .......... . June ...... . .... ....•..•....•..•............ July . . ........• . •. .•. . . ..•....•.. •. • •.... .. August .....................•. .•.... . ... . ... 

September . .. . . . . .. .. .. . •.. ... 

Mar. 

7.e 

e.o 

e.2 

e.2 

e.2 

e.o 7.e 

7.6 

7.6 

7.6 

7.e 

e.o 

e. 2 

e.6 

9.0 

e.e 

e.6 

e.4 

e.4 

e.e 

~.2 

9.4 

9.6 

9.4 

•O.O 

9.7 

9.2 

9.7 

10 

ll 

11 

Secondtoot-<layo 

268. 5 

221 .0 220.6 

209.e 

185.9 

270.e 

32e.e 

4, 513 

4,303 1 ,467 

447 . 8 

240.9 

Apr . 

11 

11 

10 

10 

11 

11 

11 

9.7 

9.7 

9 . 7 

9.7 

10 

11 

10 

10 

10 

11 

ll 

ll 

10 

11 

ll 

ll 

u 

ll 

12 

13 

u 

u 

15 

1& 

21 

2ll 

22 

21 

25 

40 

eo 

99 

1~9 

190 

2ll7 

255 

~12 

320 

29e 

27& 

228 

203 

157 

1~7 

120 

120 

124 

131 

14e 

157 

161 

157 

151 

155 

9.7 

9.2 

e . 2 

7.6 

e.2 

ll 

15 

320 

176 

94 

20 

19 

June 

161 

159 

159 

153 

154 

162 

1&e 

176 

162 

ue 

137 

124 

113 

114 

119 

119 

126 

146 

162 

17~ 

169 

He 

He 

151 

145 

1~7 

uo 

122 

114 

104 

7.4 

5 . 5 

5 .e 

6.0 

5.e 

7.6 

9.7 

16 

104 

21 

7 .9 

5 . 4 

July 

94 

87 

82 

79 

~ 

8l 

75 

ee 

59 

65 

54 

53 

50 

47 

44 

3e 

36 

35 

53 

33 

30 

29 

27 

26 

26 

26 

25 

24 

24 

22 

2l 

Aug. 

20 

19 

19 

19 

1e 

19 

19 

2C 

20 

17 

16 

14 

14 

14 

l4 

13 

l4 

15 

H 

1 2 

12 

12 

12 

12 

13 

14 

ll 

8.0 

7.9 

8.0 

7.9 

Sept. 

7.7 

7.7 

7.2 

6.4 

5.4 

5 .9 

&.4 

e.e 

7.7 

7.2 

5. 4 5.4 

5.6 

7.5 

6.7 

7.5 

6.5 

6.4 

e. 7 

7.7 

8 .0 ll 

u 

8.5 

a. 2 

7.7 

7.9 

8 . 8 16 

19 

Mean Runott in acre-feet 

e.66 7.37 

7.12 

6.77 

6.64 

e.H 

11.0 

146 

143 

47.3 

14.4 

e . 03 

5~3 

43e 

43e 

416 

369 

537 

652 

e,950 

6 , 530 2, 910 

eee 

47e 

Water year 1940-41 . . . . . . . . . . . . . . . . . 12,677.1 320 5.4 34.7 25,140 

• Winter dhdurge measurement mad.e on this d.ay. 

~-State-discharge relation affected. by ice Nov . 5-7, Nov. 15 to J1ar . 25 (no gage-height record.). 
RIO GRANDE BASIN 193 

. Trinchera Creek below Sm.1 th Reservol r, near Blanca, Colo. 

Location.- Watel'-stage recorder, l a t. 37°23', long. 105°35', ln sec. 5, T. 31 s., R. 73 

w., I mlle downstream !rom Smith Reservoir and 5 mlles southwest or Blanca. 

Drainage area. - 396 equere miles. 

Records available.- October 1933 to September 1941 ln reports or Geological survey. October 1929 to September 1941 ln reports or State engineer. (No winter records most years.) 

Extremes.- Maximum dally discharge during year, 640 second-teet May 15; mlnlmum dally, 0 .6 second-toot or lese at times ln November. 

1929-41: Maximum dally discharge, that or May 15, 1941; mlnlmum dally recorded, 

0.1 second-root Nov. 3, 1937, to reb. 28, 1938. 

Remarks.- Records good except those tor period or no gage-height re cord and those tor ----.:ug:-1 to Sept. 30, which are ratr. Dl versl ons above station t or lrrlgatlon. now 

regulated by Smlth Reservoir (capacity, 5,335 acre-teet ) . 

- -.----,- -D_1_a

0

oh_a_r_:gc.... e in second- teet . water year October 1940 to September 1941 

Day Oct. 

1 

2 

3 

4 

5 

6 

7 

B 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

26 

29 

30 

31 

0 . 7 

. 7 

.7 

.7 

. 9 

.B 

. 7 

.7 

.7 

.7 

. 7 

. B 1.0 

1.4 

.B 

Nov . Deo . Jan . 

0.6 

Feb . 

• 

War . Apr . 

1.1 

2. 8 

10 

22 

28 

40 

.. 

46 

48 

48 

54 

55 

56 

57 

57 

56 

58 

6~ 

68 

68 

66 

67 

68 

61 

61 

70 

79 

95 

1.4 1~ 

1. 2 1~9 

1.0 

May 

169 

214 

25~ 

274 

~16 

34~ 

395 

417 

417 

419 

421 

•~s 

495 

540 

640 

6~0 

590 

580 

590 

560 

515 

480 

470 

480 

485 

475 

480 

4Bl 

472 

470 

454 

Wonth Secondtoot-day a Waximum 

October . . . . . . . . . . . . . . . . . . . . . . . . . 24.8 November ................. . .... . . . ........... 18. 0 December ............•.. . .••.••. . .. . . . .....• 

Calendar year 

January .... . . . ..... .... .. . .. . ...... . ...... . February . .. .. . . .. w •••• o • • •••••• • ••••• o •• • •• 

March . .. . . .. . ....•. . . .. .... ........ .. . . . ··. 

April. . . ......•..... , ...• · · •. · · · · · · · · · · · · · llay .. . ... . .. .. •..• .. .. . . . • ..•....... . ... June . ........ . •.... .. . o •• o ••••• • • •• ••• • o •• • 

J uly ........ ..•.. •..........•.......•..•... August ..... . .... , •.... o •• •• •••••• • , • • • • o • •• 

September . . .. ... . . . . o • ••• o •••••••• • • •• •• 

Water year . . ...... . ........... . . 

-- -----

1,710.9 

13 , 960 7,434 

1, 644.9 

72.7 

47. B 

1~9 

640 

433 

97 

5 . 6 3 . 0 

June 

4M 

406 

~87 

373 

346 

M2 

~20 

355 

326 

2118 

275 

259 

244 

226 

219 

209 

200 

189 

194 

194 

1BB 

188 

185 

185 

186 

178 

155 

142 

1 28 112 

IUn.imu.m 

1.1 

169 

112 5.9 

.B 

.9 

July 

97 

BO 

67 

60 

54 

47 

47 

52 

55 

56 

57 

60 

61 

60 

64 

66 

65 

64 

65 

68 

71 

60 

57 

57 

46 

24 

23 

22 

21 

13 

5 . 9 

lloan 

o. eo 

.8 

5?.0 

450 

248 

53.1 

2.35 

1.59 

Aug . 

5.6 

5.6 

4.7 

4.4 

•• 4 

•• 4 

4 . 1 3.8 

3 . 8 

3. 2 

2.8 

2 . 8 

2.5 

2.0 

l.B 

l.B 

1. 2 

.9 

.a 

1.0 

. 9 

1.0 

1.2 

. 9 

.9 

1.0 

1.0 

1.0 

1.0 

1.2 

1.0 

Sepl. 

0.9 

1.2 

1.2 

1.2 

1.2 

1.2 

1.0 

1.0 

1.2 

1.2 

1.0 

1.0 

1.2 

1.2 

. 9 

1.0 

l.B 

1.5 

2.2 

~.o 

2.5 

2 . 2 

2.2 

2. 2 

2.0 

2.0 

2 . 2 

2. 2 2.0 

2 . 2 

Runo tt. in oore-reet 

49 

36 

3 , 390 27 , 690 14,750 

3 , 280 

144 

95 

Note.- No gage-he i ght record Oct. 15 to Nov . 30 (<11echarge com,pute<1 on be. ail or one diacharge meaa-

~~~="~r~:;:r~~~~hf~tee cloee<1), a.nd Hay 12-24 (discharge OOIQPUted on baala or recorda tor atat1on 
194 RIO ORANDE: BASIN 

Sangre de Cristo Creek near r ort oarlsod, Colo. 

Location .- Wate!'-stage recorder, lat. 37°213 ' long. 105°24', ln sec. 23, T. 30 S., R. 72 

w., It mlles east o! rort oarlsod sod 4 miles upstream !rom confluence wl th Ute Creek. 

Drainage area.- 187 square mlles. 

Records available.- Octobe r 1933 to September 1941 !n reports o! Oeolog!cal Survey . March to October 1916 sod May 1923 to September 1941 ln reports or State engineer. {No winter records most years). 

<:xtre!l'es .- Maximum discharge during year, ?56 second-teet May 12 {gage height, 6.46 !eet), 

---rfliiil"ratlng curve extended above 450 second-teet; m!nlmum dally recordea, 1.8 second- teet Oct . 9, but may have been less during period o! tee e!!ect. 

1916, 1923-41: Maximum discharge , 1,520 second-teet Aug. 31, 1936, by slope-area method; maslmum gage height , that o! May 12, 1941; no !low at tlmes during 1934-36, 

1939- 40. 

Remarks.- Records good except those !or periods or tee e!!ect or no gage-hetght record, 

----wliTCfi are !a!r. A !ew dive rsions above station !or 1rrlgat1on. 

Dis charge . i n s econd-tee t . wate r yea r October 19 40 t o September 194.1 

Da y Oc t . Nov . Dec . J an . Feb . Ma r . Apr. II&¥ Jun~ I J uly Aug. Sept . 

1 4.9 4 . 6 } 34 245 26~ I 76 32 13 

2 3 . 9 4.6 32 250 2~ 73 30 13 

3 2 . 6 4.6 l4 32 256 23 • 68 28 10 

4 2.3 4 . 4 30 291 230 65 28 9 . 0 

5 2. 4 4. 4 34 264 216 63 27 9.6 

6 3 •• 4.4 37 340 205 65 23 9 . 6 

7 4 . 4 .... 36 460 204 62 23 s.o 8 3 .4 4.4 39 522 a228 57 23 ~ 

9 1.8 4.6 41 597 229 54 23 13 10 2 . 3 4.9 50 631 194 55 25 13 

11 2. 4 4. 4 48 702 19~ 59 23 11 

12 2 . 6 43 709 187 74 21 ll 

13 3.6 53 709 176 63 27 11 

14 3 . 4 45 718 169 66 28 16 

15 2 .9 52 656 162 67 26 15 3 • 2 6 . 5 15 

16 3 . 4 5 4 544 166 64 23 13 

17 3 . 4 (• ) 6 4 460 174 58 22 12 

18 3.4 67 416 160 59 31 ll 

19 3.6 56 377 144 48 23 12 

20 3 . 6 3 . 7 55 353 134 45 23 16 

21 3 . 6 49 306 129 48 25 23 

22 3.4 46 347 127 46 22 30 

23 3 . 4 54 432 118 40 21 35 

24 3.4 52 442 116 35 18 26 

25 3 . 6 •20 68 435 114 37 17 20 

26 3 . 6 17 83 418 103 45 16 18 

27 3.9 16 28 393 93 40 14 16 28 4 . 9 20 46 380 91 39 H 15 29 4 . 9 20 176 355 83 37 14 31 30 4 . 6 23 218 315 79 32 14 40 31 5.2 2 5 281 32 13 

Mont h Second- Ma.x i mu.m aunimuaa We an Runorr io root-days ac re-tee t 

Oc tober ... .. . . . . . . ············ ········ 108. 2 5 . 2 1.8 3 . 49 215 November. . . . . . . . . . . . 120 . 0 4. 9 4 . 00 238 Decembe r . ... ... ...... ... ................... 93 3 184 -- ----- Calenda r year .. ... ... .. ... ... ...... ------ - January . ......... ................ ...... .. . 62 2 123 February .... ...... .................... 182 6 . 5 361 Mar ch . ........ ............ .. ..... .... ... ... 496 25 1 6 . 0 984 April . . . . . . . . . . . . . . 1 . 924 218 30 64.1 820 

llay .. ······· ····· ····· ·· ···· ····· ······ 13 . 604 718 245 439 26. 980 June .. . . . . . . . . . . . . . . . .......... .. h 985 267 79 166 9 . 890 

July ........ . .. , .. · .. · . ... · ·· · · ········· 1 , 672 76 32 53. 9 3 , 320 August . . ............. ...... .. .... .... . 697 32 13 22 . 5 ~eo 

September . .. .............. ... .... 488 . 7 40 8 . 0 16 . 3 96g 

Water year 1940 -41 24,4~1.9 718 66 . 9 48 .460 

• Winter d ta ch&r ge measurement m.de on th.1a day . a Ho gage-height re c ord. ; dtacharge compu ted on be.eta of r e cordl tor Trinchera Creek above Turners Ranch . 1!2lli- Stage-di scha r ge relati o·n arrected by lee Nov . 5-7, 1fov. 11 to Mar . 25 (no gage -height record. ). 
RIO GRANDE BASIN 195 

Ute Creek at upper station, near Fort Garland, Colo. 

Location .- Water-stage recorder, let . 37°32', long. 105°23' , In sec. 12, T. 29 s., R. 72 

w., I SO yards downstream from forks and 9 miles northeast or Fort Garland . 

Drainage area.- 23.3 square miles. 

Records available .- May to July 1936, October 1939 to September 1941 (no winter records). 

Extremes .- Maximum discharge during year, 686 second-teet May 15 (gage height, 3.39 teet), 

from rati ng curve extended above 175 second-teet; minimum recorded, 8.1 second-teet Nov . 7 (discharge measurement), but was less during period or Ice street . 1936, 1939-41: Maximum discharge , that or May 15, 1941 ; minimum recorded, 4 .3 

second-teet Oct . 28, 1939, but may have been less during period or Ice street. 

Remarks .- Records good except those tor period or no gage-height record and those tor May 

-r4tO June 11, which are fair. No diversi on or regula tion . 

Dis9harge , in seoond-Ceet , water year Oc tober 1940 to September 19U 

Day Oot . Nov . Dec. Jan . Feb . Wa r. Apr . May June July Aug . Sept . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

16 

15 

14 

18 

20 

18 

16 

16 

16 

15 

14 

14 

13 

13 

16 12 

17 12 18 12 19 12 

20 11 

21 11 22 11 23 ll 24 10 25 10 

26 9. 9 

27 11 28 alO 29 o10 

30 &10 31 alO 

7.8 

Wonth 

Oc t ober ....... . ...................... . Noveabe r . .... .. ....... .. ...•..•....•... . ... 

Decoaber .. . ... . .... . .. •... . . ..... ... ....... 

Calendar year 

January . . . . ... . . ..... . . · · ···· · ···· · ········ Febru.ary .. . . .. ........•... . ...•. . • . .... . .. . 

March .. .. . .. . .•..•..•..• .•. .... . . · •· · . April ....... . . • ..........•.....•.. . . . ... llay ........ ..•. ..• •.• ..•.• ••.•. . . . .. . ...... J~e ........ . .. . ............• . . ..... ... .. .. July .. . ... . . .... . ••.•. . •.... • •.•..•. . •. . .. August ..............•. ... . .. • ....... .. . . ... 

September ............. . • ..... • .• . . , . .•. 

Water year 

Second- root-days 

6 . :525 5.1.78 

3 , 472 1,646 

954 

• Winte r dhchRrge measurement made on thia day . 

Maximum 

59 

72 

79 

82 

102 

147 

161 

176 

190 

193 

204 

188 

116 

398 

503 

405 

384 

346 

311 

256 

206 

185 

145 

145 

162 

216 

225 

188 

160 

160 

162 

20 

503 

259 

152 

as 

68 

165 

165 

172 

158 

150 

1 48 160 

142 

a.l~2 

&120 

11 1 101 

97 

103 

120 

145 

175 

219 

249 

231 

216 

202 

219 

259 

249 

216 

207 

199 1SO 

168 

9 . 9 

59 

9? 

70 

30 

20 

152 

140 

131 

131 

133 

128 

120 

115 

120 

122 

124 

126 

122 

120 

133 

126 

120 

115 

111 

115 

113 

107 

99 

89 

8 6 

89 

8 4 

eo 

77 

? 4 

70 

Moan 

13. 1 7 . 8 

204 

173 

112 

53 . 1 

31.8 

69 

64 

63 

59 

59 

57 

57 

56 

55 

5? 

56 

62 

57 

62 

62 

5? 

?5 

88 

63 

56 

30 

27 

25 

25 

22 

21 

21 

22 

22 

22 

21 

20 

23 

43 

33 

26 

24 

23 

23 

33 

a48 

a 50 

a 58 

.. 2 

36 

Runo ff i n acre-t eet 

807 

464 

12, 550 

10, 2?0 6 , 890 

,. 260 

1 , 890 

a No gnge he i ght record ~ dheharge c omputed on beals or recorda for Ute Cr eek: near Port Oarla_nd. ~-Stage-discharge relation affected by ice Nov . l-30 (no gage -height r eco rd). 
196 RIO GRANDE BASIN 

Ute Creek near F'ort Garland, Colo . 

Location. - Water-stage re corder upstream from rating tlume, lat. 37°28', long. 105°24', 

i n sec. 2 , T. 30 s., R. 72 W., 2t miles north ot F'ort Garland and 6 miles upstream trom mou th. 

Drainage a rea .- 32 square miles. 

Records avail able.- October 1933 t o September 1941 tn reports or Geological survey. M8rch to oct obe r 1916 ahd May 1923 to September 1941 In reporte or State engineer. (No winter reco rds most years). 

E:xtr emes .- Maximum daily discharge duri ng year, 630 second-teet May 15; minimum dally recofded, 4.8 second-teet Nov . 3- 7[ may have been l ess during peri od or t ee street. 1916, 19;!3-41: Maximum dally <1 scharge , that or May 15 , 1941; ·mtntmum <Iaily recor<le<l , 1.6 second-teet July 6, 1936. 

Remarks.- Records goo<! except those t or periods or t ee ettect or no gage-height record, 

-----wliTCI'i a re tatr. A raw dive rsions above station tor trrtgatton . 

Disobarge, in second-teet, water year October 1940 to September 1941 

Da Oct . Nov. Deo . Jan . Pob . War. Apr. llay Juno July Sept. 

l 

2 

3 

4 

5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

14 

1~ 

12 

ll 

12 

18 

16 

16 

14 

14 

13 

12 

9 . 2 7 .0 

7.0 

8 . 6 

9 .7 

9 .7 

9. 7 9 .2 

9 . 2 9 .2 

8 .6 

S .6 

S.l 

8.1 

8 .6 

9 .2 

8 . 1 7 .0 

6. 2 

6 .8 

6.4 

4.8 

4 . 8 4.S 

4.8 

.,.8 

s.8 

7 . 6 7 .6 

6 .2 

Month 

October . . . . . . . ... . . . .. . .. . . . Novembe r . . . . ... . ..... . . . . . . . . .... . . . December. ... . .• .. . . . . ... . • . . • . . • . . . . . . 

Calendar year 

January .. . . . . . . . • . . •. .. . . . .. . . ... .. February .. . . . •.. . .. . .... • . . . . . . ... March . . .. . ... . . . .. ... . . . .. ... . . . . ... . April. ...... .. . . . . . . ll~y . .. . . . . . . . ... . . .. .. . ..... .. . . .. ... .. .. . . June . .. . ... . . . . ... . . . .. . , ... . . . . • . July . . . . . . . . ... .... . ... .. . .. . .. August . . . . . . . . .. . . . ... . . o • • • • • • • • • •• •• •• • •• 

September . ... . . .. . .. . . . . • . . o • •• •.• • • • 

7 

s 

12 

16 

Secondroo t-days 

326.0 

180. 2 

186 

186 

168 

248 

631 6 , BZ3 4,614 

3,006 

1 , 21Z 

S46 

Water year 1940-41 . . . . . . . . . . . . . . . . . . . . . . 18, 336 . 2 

• Winter d. lacharge measurement mad.e on th.1a day. 

a No gage-height record; dlacharge computed on baala Garlaod o ~- Stage-d.1acbarge relati on arrectod by ice Ho"'f. 

lS 

16 

16 

17 

26 

22 

18 

18 

lS 

lS 

17 

lS 

23 

21 

20 

•20 

20 

20 

20 

20 

19 

18 

18 

16 

19 

22 

27 

29 

33 

46 

66 

70 

73 

73 

74 

100 

132 

163 

222 

232 

241 

282 

277 

a490 

a630 

a490 

a44.6 

&400 

-~60 

a290 

a230 

alSO 

al30 

123 

138 

173 

177 

176 

166 

141 

132 

llla.ximum 

18 

46 

6~0 

207 

130 

92 

66 

6~0 

140 

140 

147 1 44 

~6 

1~1 

166 

168 

1~6 

117 

109 

98 

94 

96 

109 

l~l 

162 

176 

184 

186 

1S6 

173 

177 

1S8 

207 

196 

lS2 

172 

162 

136 

Minim\111 

6 . 2 

16 

66 

94 

46 

26 

13 

1~0 

129 

123 

123 

126 

12 1 

l OS 

102 

109 

ll~ 

123 

118 

107 

107 

126 

107 

101 

100 

96 

108 

99 

S6 

77 

G8 

6~ 

69 

62 

66 

6~ 

51 

46 

lloan 

10.6 

6 .01 

6 

6 

6 

s.o 21 .0 220 

160 

97 . 0 39.1 

2S . e 

50.2 

26 

26 

26 

26 

24 

22 

19 

1S 

19 

16 

13 

13 

17 

:!e 

26 

22 

18 

16 

16 

29 

4ll 

49 

62 

38 

~ 

30 

26 

26 

68 

6e 

Runoff in 

aor&-teet 

369 3~ 

,92 

1 , 260 13, 660 8,950 

5 , 980 2 ,410 

1,680 

~6 370 

o r recorda ror upper atation near Port 

11 to xa.r. 29 (no gage -height record). 
RIO GRANDE BASIN 197 

Conejos River at Platoro, Colo . 

Location.- Wate!'-stage recorder, lat. 37°21'00", long. 106°31'30", In sec. 22, T. 36 N., 

K. 4 , half a mile east or Platoro and 5 miles downstream from Adams Fork. 

Draln11ge area .- 44.4 square miles . 

Records available .- April 1937 to September 1941 (no winter records) . 

Extremes.- Maximum discharge during year, 1,310 second-feet June 25 (gage height, 3 .15 

feet), from rating curve extended above 650 second-feet; minimum dally recorded, 8.4 

second-feet Dec . 12, but may have been less durin~~: period or no record. 

1937-41: Maximum discharge, that or June 25 , 1941; minimum dally recorded, 6.6 

second-feet Dec. 13, 1937, but may have been lees during periods or no record. 

Remarks.- Records good. No diversion above station. 

Discharge, in second-teet , water year October 1940 to September lO·U 

Oa Oct . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

1~ 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

H29 j 30 

31 

61 

54 

63 

54 

169 

156 

121 

104 

90 

77 

67 

60 

64 

48 

.. 

40 

37 

34 

29 

28 

26 

24 

23 

22 

21 

20 

14 

19 

30 

24 

26 

Nov , 

24 

23 

21 

16 

22 

20 

17 

19 

17 

13 

21 

19 

20 

16 

16 

16 

14 

14 

14 

16 

16 

15 

16 

14 

16 

29 

34 

17 

18 

13 

Ceo . 

17 

17 

17 

16 

18 

12 

16 

13 

ll 

12 

ll 

8.4 

Month 

Jan . Feb. 

October ......................... . . .. . .. . .. . November ............•. , ..• .. • .••. ........ .. 

Deoeaber 1-12 .. . . ............ . ......•. . .. 

Calendar year 

January .... ....... . ......•....... o ••••••• 

February ......... 0 ••••••• 0 0. 0 •••• • • • o o • •••• 

March . ... ........ ... ~ ..... . . o ...... . ....... . 

Mar. Apr . 

16 

18 

20 

27 

24 

27 

34 

30 

30 

27 

27 

23 

24 

28 

30 

40 

30 

27 

29 

30 

22 

22 

26 

34 

27 

22 

26 

29 

!~ 

llay 

44 

48 

63 

77 

104 

166 

240 

317 

408 

516 

604 

733 

856 

793 

659 

Juno 

506 

572 

653 

670 

664 

625 

681 

593 

446 

366 

334 

334 

344 

380 

432 

604 490 670 642 704 838 583 993 441 1 , 010 

380 1 , 040 370 1,010 394 1,040 470 1,040 

552 1 , 090 

631 1,040 647 993 

531 958 456 824 

441 775 446 

Seoondroot..-.daya Maximum Minimua 

1 , 649 

541 

168.4 

269 

34 

18 

14 

13 

8 . 4 

July Aug . Sept . 

775 

781 

787 

824 

896 

799 

733 

757 

693 

659 

670 

670 

636 

567 

516 

480 

521 

626 

614 

636 

541 

~1 

451 

427 

380 

344 

300 

264 244 

202 

187 

lie an 

2 

18 . 0 H . O 

176 

159 

140 

126 

132 

150 

134 

143 

150 

~~ 

137 

118 

118 

143 

260 

156 

162 

146 

124 

108 

104 

90 

82 

73 

65 

60 

54 

52 

56 

67 

54 

47 

.. 

40 

36 

33 

30 

28 

34 

34 

32 

28 

26 

52 

196 

118 

97 

104 

116 

143 

221 

180 

150 

150 

124 106 

92 

84 

84 

162 

156 

Runott in acre-teet 

3,2'70 

1,070 

334 

~~11::::::::::::: :: ::::::::: :: ::::::::::: 13 g~; a:~ ~: 4~ 5 2~:::g June . .......... . .... 0 0 •••••••••••• 0...... .. 21,~1 1,0QO ~~4 713 42,410 

July... .................................... 17,610 806 187 566 !54 7~ 

August .............. 0 .......... o o. o... . .... 3 , 602 ~~~ ~ l~t 6 ~~g 

September. . . . . . . . . ... . 0 •••••••••••••••••• ·1-_::.2:..• .:_::6:_1----.::.:.=t--....:::_+---~-=-;--..:..:.= 

Water year 
198 RIO GRANDE BASIN 

Conejos RIver near Mogote , Colo . 

Location.- Water-stage re corder, lat. 37°03 ', long. 106°11 ', ln SEt sec. 34, T. 33 N. , R. 

'7 ;;. , three-quarters or a mlle downstream from rox Creek and 5t miles northwest or Mogote . 

Dra1nage area .- 262 square miles. 

Records available .- Septembe r 1899 to March 1900, Apr il 1903 to Septembe r 1913 and Oc tober 

1933 to September 1941 In reports or Geologi cal Survey. Septembe r 1899 to March 1900 

and Apr il 1903 to September 1941 In reports or State engineer. 

Average discharge.- 39 years (1902-41) , 378 s e cond-teet. 

Extreme s .- Maximum discharge during year, 3 , 740 second-t ee t May 14 (gage height, 5.08 reet)L from rating curve extended above 3 ,000 second-feet; m!n!mum dally, 42 second- teet uec. 17, 22 , 23. 

1899-1900, 1903-41 : Maximum discharge , 9 ,000 second-teet Oct . 5, 1911 (gage height, 

8.50 teet, slte and datum then In us e ), from rating curve extended above 3,500 s econdteet; mlnlmum, 18 second-feet (discharge measurement) Dec. 19 , 1939 . 

Remark.s.- Records good except those tor peri od or l ee e ffect, which a~ falr. No diversion 

---orTegulatlon . 

Discharge in second-teet water year October 1940 to Sapte•ber 1941 

Da Oct . Nov . Dec . Jan . Feb. War. Apr . Way June July Aur; . Sept . 

1 194 76 •54 50 •50 56 1~0 376 1,920 2 ,050 376 1~~ 

2 17~ 6~ 52 50 47 50 lH 399 2 , 010 1 ,960 361 126 

3 17~ 64 50 46 46 •56 116 526 2 ,190 1 , 910 ~2S 11S 

4 173 84 50 •46 49 57 111 566 2 , 100 1 , 9 40 294 109 

5 196 65 50 45 50 72 1~~ 626 2 , 150 2 ,090 294 102 

6 546 76 52 46 46 57 114 956 1,950 2 ,100 ~1~ 96 

7 ~67 78 61 46 4S 62 109 1,210 2 ,200 1,780 296 92 

6 297 79 51 47 46 5 4 121 ,4~0 2~0 1 ,720 294 66 

9 266 076 52 47 46 56 i~ 1 ,700 1 , 780 1 ,710 45~ 96 

10 2~2 76 53 47 50 56 2 , 040 1,460 1,460 429 94 

11 202 60 54 46 52 56 i~ 2, 400 1 ,260 1 ,480 ~66 66 

12 lSO 64 53 47 55 64 2 , 810 1 , 250 1 , 420 ~61 62 

13 16~ 66 50 46 52 69 1M 3 , :540 1, 260 1,460 ~02 S4 

14 H? 67 46 49 •51 63 114 sso 1,310 1 , 260 3~4 226 

15 1~6 75 46 49 51 62 12 3 ,050 1 ,460 1,140 506 246 

16 124 69 ... 47 54 57 H 2,720 1 , 490 1,050 429 200 

17 116 7l 42 46 46 65 16( 2 ,720 1,800 1 , 020 ~50 167 

18 109 80 46 •H 52 69 ti~ 2 ,920 2,200 1,220 ~66 186 

19 102 68 47 H 55 7l 2 , S10 2,580 1,090 ~02 206 

20 95 67 46 46 66 76 10 2 , 180 2,760 1,350 260 260 

21 92 66 44 46 56 81 

i~ 1 , 610 2 ,800 1,180 246 424 

22 86 69 42 46 69 76 

~:~~ 2 ,800 1 , 050 246 289 

23 s~ 69 42 47 56 76 10 2 ,640 900 208 ~56 

24 S1 77 44 44 59 76 9 1 , 700 2 ,700 S20 186 289 

25 78 74 45 45 60 66 111 1 , 920 2,7?0 760 169 244 

26 76 59 46 46 56 68 17~ ;~ 2 , 910 692 166 208 

27 90 6~ 46 45 65 76 17 2 ,700 ~2 14~ 186 

26 76 67 44 46 54 7S 

~~ 2,270 2,650 54S 137 174 

29 7S 60 45 46 - 84 

:z~ ,~ ?0 498 1~ 269 

30 96 60 4S 49 - 8~ 3~6 2,100 441 156 ~96 

31 84 - 49 60 - 96 1 , SOO - 406 149 -

Wonth Second- Ma.x.imu. Mi.n.i•u Wean Runorr in toot-days aore-teet 

October .... .. ...... ~ ................. . ...... 4,914 54S 76 159 9,750 November ........................... . .. .. ... 2,124 84 50 70.8 4,210 December .... -· -···· ········-····-· ··· ··· ··· 1,486 6 4 42 47.9 2,9150 -- ----- --- - -- ------ ------ ----- - Calendar year 1940 ....•..•.......•. .. .. 80,92:5 1,440 ss 221 160,600 ------- --- - -- ------ ------ ---- -- January . . . ··-··-···-----···-·-·-······· ·-· 1,446 60 44 46.6 2,870 February . ········ · ····-···- -· --···--· ···-· 1,4?:5 60 47 52.6 2,920 March .. ... · ·· · ····- ·· · · ·- · ·· ·· ··· -· ·-- ·-··- 2,098 95 54 67.7 4,160 April. . ... ·-·--···· ·· · · · -· · ···· ··- · · · ··- . .. 4,252 326 93 142 8,4:50 

ll&y .. .... . ·-·· --····· ···· · · ·· ·-····- · ·· ·· .. 59 , 016 3 ,350 37S 1 , 904 117,100 June ........ . . . .....• .. .....•. . .. .. . ... . . .. 6;s,orgo 2,.910 1 , 250 2 ,126 128,600 

July ...........• . • • .•.••. . . . • . . •..• . •... . .. :59,127 2 ,100 406 1,262 77,610 August ....... . .......... . .. . • . . . . . . . •...... 9,066 60S 1~~ 21l2 17,960 

September .. ........... . ....... ... ....... ... 5,657 424 82 169 11 , 220 

Water year 1940-41 ... ····· ·············· 194 , 4:5? :550 42 5~ M6,700 

• W1nter dlaeharge meaaurement •de on this day. !!2!!..:.- Stage-discharge relation affected by lee Nov. :S to Mar. 2, 
RIO GRANDE BASIN 199 

Conejos Ri ver near La Sauses, Colo . 

Location .- Wa t er-stage recorders (two channels), lat . 37°23' , long. 105°45 ', in sec. 2, 

T. 35 N., R. ll E. , hal! a m!le upstream ! rom mouth and 2 m!les north or La sa uses. 

Ora i nage area .- 887 square m!les . 

Records ava!lable .- October 1933 to September 1941 in reports or Geological Survey . Miirch 1921 to s eptember 1941 in reports or State engineer. 

Average discharge .- 20 years , 251 second-teet. 

Extremes.- Max imum discharge during year, 3,890 second-teet May 15; minimum dally, 10 second-teet Aug. 5. 

1921-41 : Max i mum discharge , that or May 15, 1941; no now July 21 to Sept. 8 , 1934. 

Rema kS.~ Records good. Diversions above station ! or irrigation . 

Discharge, 1n second-t eet , water year October 1940 to September 19U 

Da) Oct . Nov . Dec . J an . Feb . War. Apr . May June July Aug . Sept . 

1 16 2 56 73 •n 1~ 169 260 1 , 920 1 , 280 4~ 21 

2 1 6 27 56 72 70 113 161 457 1 , 920 1 , 160 29 20 

3 14 27 56 66 69 122 142 602 1 , 900 1 , 010 16 20 

4 ~ 27 56 66 72 131 130 820 2 , 010 957 n 18 

5 13 29 56 • 66 75 152 121 878 1 , 890 1 , 040 10 18 

6 14 30 59 60 78 136 120 1 , 050 1 , 820 1 , 300 11 16 

7 19 28 57 64 71 135 101 1 , 540 1 , 660 1 , 370 12 17 

8 27 22 56 64 *69 122 89 1 , 980 1,970 1,230 12 16 

9 29 23 56 67 72 115 90 2 , 340 2 , 310 1,200 21 17 

10 32 36 60 57 72 104 103 2 , 660 1 , 680 1 , 080 25 16 

11 ~0 S6 64 * 62 74 100 117 2, 990 1,510 977 ~1 17 

12 33 37 66 69 77 107 104 3 , 170 1 , 260 993 ~0 16 

13 3~ 56 65 72 61 106 104 3,430 1,130 1 , 030 25 17 

14 ~~ 40 6~ 71 64 110 100 3,720 996 984 24 24 

15 ~2 56 64 71 64 126 63 3 ,820 946 900 24 25 

16 ~3 39 • 59 72 66 160 61 3 , 760 944 616 ~2 26 

17 ~3 39 54 69 68 167 70 3 , 510 952 7~0 46 30 

18 33 40 56 • 65 93 194 65 3 , 310 1,090 651 44 30 

19 31 42 56 66 93 237 73 3 , 350 1 , 320 650 40 29 

20 ~2 42 60 66 93 264 67 3 , 370 1 , 670 626 40 24 

2 1 34 40 56 67 95 269 53 2 , 660 1,760 724 56 22 

22 36 40 &4 66 93 286 52 2,160 1,780 613 ~9 47 

23 26 46 64 66 98 271 54 2,120 1,820 547 41 52 

24 29 51 68 66 99 276 53 1 , 960 1 , 740 474 37· 69 

25 31 53 66 • 66 107 273 49 2 , 100 1 , 810 409 32 69 

26 34 65 66 69 114 297 52 2,3~ 1,680 344 29 71 

27 35 55 71 66 110 28~ 57 2 , 540 1 , 920 275 26 54 

28 56 56 69 69 1~ 263 63 2 , 770 1 , 820 230 27 59 

29 34 57 65 70 - 217 139 2 , 760 1 , 730 168 2~ 77 

30 26 55 •73 72 - 194 209 2,420 1,520 132• 23 129 

31 27 - 7 4 71 - 160 - 2,100 - 85 22 - ' 

Month Second- Maximum Minhlua Mean Runott i o 

too t-days aore-reet 

Octobe r ....... •. . ....... . . . ........ . . . 859 56 13 26 . 0 1 , 720 

····· 57 22 39 . 2 2 , :5:50 Noveaber .... . ........... ...•........ ... 1 , 177 

Deoeaber . . .. . ................ .. ... . .... .... 1 , 9e3 74 54 62 . 0 3 , 810 .... -- ----- --- --- - ----- ------ ------ Calendar year 1940 ..... .... ....... .. .... 22, 346 . 5 902 .1 61 . 1 44, 320 

------- ------ ------ ------ ------ January .. . . . . . . .. .......•..•. . •.... .... .. .. 2 , 100 73 60 67 . 7 4 , 170 

February .... ... ....... •. . ... .. •.. .. .... ·· ·· 2 , 393 114 69 85 . 5 4 , 750 

lllaroh . ........•. . .. • .... . .....•..•..• . . . . . . 5 , 623 297 1~ 181 11,150 

April .... .. . . . , ....... • .......•..•..... ···· 2 , 699 209 49 96 . 6 6 , 750 

~- ···· ····· ·· ······· ·· ········· ··· · 7 3, 007 820 260 2 , 355 1« , 800 

June .. . .... ... . .......• . . . .......•.... .... . 48 , 818 2 , 310 944 1 , 627 96 , 830 

July . ... . . .... , ... . . ..• . . . .. . .•.. • ......... 23 , 990 1,370 85 774 47 , 580 

August ..... .. . . . ..... . . . . . . ... ...•........ . 667 46 10 28.0 1 , 720 

1 , 080 129 16 36. 0 2 ,140 Septe•ber ......... . . . ... ..... . ····· · · · ·· ... 

Water year 194 -4~ 164, 746 3 , 820 10 451 326, 600 ......... ······· ······ tt Winter dleohar o moaeuremont made on th e 4ay . ~- Stato-4h ~b e relation a rt ected by l e e Oeo . 15- 18 , 20- 29 , Jan . 2- 22, Peb . 5, 6 . 
200 RIO GRANDE BASIN 

San Antonio River at Orti z , Colo. 

Location.- Wate r-stage recorder, lat . 37°00 ', long . 106°02 ' , In New Mexico, In sec . 19, 

'!'. 32 N., R. 9 E., a quarter or a mile south or Colorado-New Mexico State line , halt a mile south or Or tl z , and halt a mile upstream rrom Los Pinos Creek . 

Drainage arsa .- 110 square miles. 

Recor<ls available .- October 1933 to September 1941 In r eports or Geological Survey . January to October 1915, May 1919 to October 1920 and October 1924 to September 1941 

In reports or State engineer. (No winter records most years . ) 

Extremes .- Maximum discharge during year, 1 380 second-teet May 13 (gage height , 4 . 75 

feet), !rom rating curve ~xtended above i,100 second-teet; no now Sept . 1- 14 and some days In F'ebruary . 1915, 1919-20, 1924-41: Maximum discharge, 1,750 second-teet Apr . 15, 1937 (gage height, 5.38 teet), !rom rating curve extended above. l , lOO second-teet; no now t or periods In nearly every year . 

Remarks .- Records good except those below 50 second-teet, which are !air. A rew small 

----arvefslons above station tor Irrigation . 

Discharge, i n second-feet , water year October 1940 t o September 1941 

Day Oct . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

3.4 

4 . 7 2.0 

2.6 

3.8 

6 . 9 7 .4 

4.2 

3 . 0 2.6 

2 . 0 

1.9 

1.9 

2.0 

2.0 

2 .0 

1.9 

1 . 9 1.6 

1.6 

1.7 

1.9 

1 . 9 1.9 

2.0 

lo1 

. 1 .9 • 7.4 

6.9 

3.8 

5 . 5 

Nov . 

4 .7 

• 2.1 

2 . 1 2 . 1 2 .0 

t . 1 

2.4 

2 .6 • 2 . & 

2 .4 

2.3 

2 . 2 2.0 

2 . 0 2 .0 

2.0 

2 . 0 2 .0 

2.0 

3.0 

3.5 

4.0 

4.0 

3.8 

3.8 

3.5 

3.6 

3.6 

3.6 

3 .6 

Dec . 

{• ) 

Mont~ 

Jan . Fob. 

<•> 0.6 

October . . . ... . . . . . ... . ............. .. ..... . November . . ... , . . ... . .. ..• ..• . . ... . . • . . 

December . ..... .... ... . . ..• .• •.• .. . .•..•.... 

Calendar year 

War. 

<•> 

Second- toot-days 

Apr . 

8 

19 

18 

2~ 

41 

39 

34 

34 

49 

69 

May 

320 367 

461 

424 

468 

689 

640 

677 

761 

778 

e 55 823 

69 922 59 1,050 68 970 47 810 

68 

77 

59 

47 

68 

40 

39 

39 

36 

50 

77 

120 

181 

215 

248 

652 

686 

678 

492 ~14 

281 

342 

306 

327 

370 

324 

284 

284 

230 

183 

143 

Muimu. 

7 . 4 

4 . 7 

June 

117 

106 

93 

88 

70 

59 

5e 

83 

113 

95 

88 

80 

70 

6l 

54 

68 

47 

40 

30 

24 

22 

21 

20 

21 

24 

21 

17 

14 

10 

8.o 

Minimum 

1 . 1 2 .0 

J uly 

7 •• 

6 . 9 5 . 9 

3 . 8 2 . 6 

6 . 1 4.7 

3.4 

3 . 4 

2 . 6 

3 . 0 3 . 0 +. 2 9 . 2 4 . 7 

6 . 9 6 .9 

7.4 

6 . 6 13 

u 

10 

9 . 2 

8 

4 . 2 

2.0 4 

3.0 

1.7 

1.6 

1.4 

3.0 

1 .4 

1.1 

. 9 

. 9 

3 . 4 2 . 2 

1 . 7 3 •• 

4 . 7 

4 . 7 3 . 0 10 

8 . 6 2 .6 

1 . 7 

13 

10 

3 . 8 2.2 

1 . 9 3.8 2 . 6 1 . 9 

1.2 

.8 

.6 

.3 

.2 

. 1 

. 1 

Sept . 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

. 1 

1.2 

.a 

. 6 

. 6 

. 6 

1 . 6 

3.4 

26 

12 

6 . 6 

3 . 0 1.9 

1.6 

4.2 

16 

Mean Runott in acre-teet 

3 . 05 2 . 77 2 . 5 187 

166 

164 

January ...... .. .. .. .. • . .... . .• . .. .. ... .. 35. 0 1.13 69 February .... ....... . .. . ...... . ... .. . . . . .... 14.0 . 5 28 

March ...... ·................................ 164 . 3 5 . 3 326 April. ...................................... 1,925 248 8 64 . 2 3 , 820 May ........ .. .. ... ... ... .. ...... ... ..... .. . 15, 737 1,060 143 608 31 , 210 June ............ . . ... ........ ...... .. ...... 1 , 811 . 0 117 8 . 0 6-3.7 200 

J uly ........................... ............ 166.9 16 1.4 5.68 331 August.... ................................. 96 . 7 13 . 1 3.09 190 

September.. . ... . . ...................... ·l----79_._o-+ ___ 2_6_+-___ o_+ ___ 2_._63+---1_5_7 

Water year l94o-ll. . . . . . . . . . . . . . . . . . . . . . . 20,082. 8 1,060 0 65.0 39 , 840 

* Wtnt.r di1cbarge aoaaurement made on this c1&7. 

l'!a!~t;f} • Stage-d.lacharge relation a rrectot1 by leo lov. 2 to Apr . 6 (no gage-height record wov. 2 to 
RIO GRANDE BASIN 201 

San Anton! o RIver at mouth , near Manassa, Colo . 

Location.- Water-stage recorder:, lat . 37°11', long. 105°53', ln sec . 21, T. 34 N., R. 10 

E:. , I mlle upstream !rom mouth and .2t mlles east or Manassa. 

Oral nage area.- 348 square mlles . 

Records availabl e .- Octobe r 1933 to September 1941 In re por ts or Geological Survey. Aprll 1923 to september 1941 ln reports or State engineer. 

Average discharge.- 18 years, 102 second-teet. 

Extremes .- Maximum discharge during year, 2,620 second-teet May 14 (gage height, 6 .26 

feet), rrom rating curve extended above 2,200 second-teet; no !low Oct . 1 to Nov. 19, 

Dec . 1-25, Sept. 9-13, 16-18 . 1923-41: Maximum discharge, that or May 14 , 1941; no now ror periOds In nearly 

every year . 

Remarks.- Recorda gooa except those !or peri ods or lee errect or no gage-height record, 

----arurthose r or Sept . 15- 30, which are ratr. Dlverstons above station ror irrigation . 

Discharge , in second-teet, water year October 1940 to Septe111ber 1941 

Day Oot . Nov . Dec . Jan . Feb . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

0 

<tO 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

.1 

.1 

. 1 

. 1 

. 1 •• 1 

. 1 

.1 

. 1 

. 1 

o1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

<tO 

0 

0 

0 

0 

0 

0 

0 

0 

0 

ol 

. 1 

. 1 

.1 

•• 1 

.1 

Month 

(•) 

October .. .... . .... . . . . .. ........... . ...... \ Noveabe r . . . . . .. .... . .. .... .• . ... . ..•.... . 

December . . . . . .............. .. . .... .... . .. . 

Calendar year 1940 ... . ..• . . . .... . .. 

January . ............ .. .. . .......... . . . . February . . . .... ........ . ........... . . . . Ma rch . .. . ..........•..• ... . . .... ··· · • · · · · · · Ap ril ...... .. . •.• • . ...•. . ..... •.. • ·· • · · · · · · llay . . . .... ........ .... ... .. . ....... .. ... .. . June ............ ...... . . . .. ... ......•.. . .. . Ju ly .. . .. .. .. ..... . •..•.......•..•..• . . . ... August .... ................. . ........•. September . ......................... . .... . 

Water yea r 1940•41 

Mar. 

10 

10 

11 

12 

13 

13 

13 

12 

ll 

12 

12 

15 

17 

20 

25 

30 

40 

48 

54 

62 

72 

70 

58 

• 66 

69 

68 

56 

47 

39 

34 

•31 

Secondtoot~ays 

0 

lo1 

.6 

12 , 54.6 . 1 

62 

252 1,069 

1 , 630 43,64. 

18,433 

3 , 624 . 2 214.? 

273 . 6 

69,194 . 1 

Apr . 

32 315 31 447 

30 674 

29 ?32 33 750 

31 996 31 1,290 32 1 , 490 40 ~0 

56 1,790 

64 1 , 870 

60 2,040 70 2,250 59 2,380 51 2,080 

~ 1,840 64 1 , 710 M 1,740 

49 l, 780 37 1,540 

37 1 , 270 34 1 , 290 

37 1,2'10 36 1 , 290 37 1,360 

47 1,410 59 1 , 460 85 1,480 144 1,350 198 1,190 

1,040 

Maximwa 

0 

o1 

ol 

U2 

72 

198 2 , 380 

976 

291 

17 

28 

June July Aug . Sept. 

9?6 291 900 258 848 210 

860 180 ?56 198 

680 230 ?04 218 916 182 956 166 ?22 138 

644 128 592 138 529 138 490 129 4?7 123 

474 105 477 93 484 84 

490 68 518 n 

515 n 501 68 

501 65 501 59 582 50 

568 4l 

515 37 47? 36 426 25 354 15 

9 . 2 

Minimum 

0 

0 

0 

0 

10 

29 

316 

364 9 . 2 

. 4 

0 

0 

lie an 

0 

. 04 

. 02 

34 .3 

2 

9 

34 . 2 64.3 1,400 614 

117 8 . 93 9.12 

190 

3.8 

2 . 5 

1 .3 

.8 

.4 

18 

20 

1? 

15 

12 

3 .4 

3.4 

3 . 8 9 . 2 

8. e 

12 

17 

15 

16 

12 

8 . 0 

2 . 9 a2 . B a2 .4 a2 . 4 a2 . 6 

a2 . 8 a3.5 

4 . 8 1 o? 0 

0 

0 

0 

0 

2 . 5 2 . 1 

0 

0 

0 

.8 

3.8 

5.5 

4.2 

ll 

H 

19 

28 

25 

23 

l4 

12 

19 

l4 

7 . 4 

S . 6 

10 

H 

8 . 6 8 . 6 8 . 0 

Runott in ac re-teet 

24,890 

123 

500 2,100 

3,230 

86, 570 36,560 

7 ,190 

426 

542 

137 , 200 

• Winter diaobarge measurement made on thh day. a No gage-height record: d1eoba.rge computed on baah of recorda tor Oonejoa River near La sauaea. .- stage - 41acharge relation at rooted by leo Nov. 20 to l'lar. 24 (no gage-height recol"d Dec. 24 to 

ll&r.zl') . 
202 RIO GRANDE BASIN 

Los Pinos RIver near Ortl z, Colo. 

Location.- Water-stage recorder, lat. 36°58', long . 106°03 ', In New Mexico, In Nt sec . 34, T. 32 N., R. 8 E. , 1 mile south or Colorado-New Mexico State line, 2 miles south- west or Ortl z, and 2t miles upstream from mouth. 

Dra inage area.- 167 square miles. 

Records available.- October 1933 to September 1941 In reports or Geologi cal Survey. January 1914 to November 1920 and October 1924 to September 1941 1 n reports or State 

engineer. (No win ter records most years . ) 

Extremes.- Maximum discharge during year, 3 160 second-!eet May 12 (gage height , 5.77 teet), !rom rating curve extended above i,610 second-!eet; minimum dally re corded, 15 second-!eet Oct. 24-26 , but may have been less during periods or no record. 

1914-20, 1924-41: Maximum discharge, that or May 12, 1941; minimum dally, 5 second- teet Aug. 11, Sept. 19 , 1934. 

Remarks.- Records good except those !or per! ods o! I ce etrect on no gage-he lght record, 

----wliiCii are !air. Diversions above station ror Irrigation . 

Discharge . in second-teet. water year October 1940 to September 1941 

Day Ocl . Nov. Dec . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

v 

28 

29 

30 

31 

37 

30 

26 

38 

27 

7l 

37 

27 

24 

24 

21 

20 

19 

19 

17 

17 

17 

16 

16 

18 

18 

16 

18 

15 

15 

15 

17 

18 

20 

25 

21 

October . . . . . . . . November .. 

December ..... . 

Calendar year 

18 18 

Month 

Jan . Feb . 

16 

January ..... ......... . . .. ....... o • ••••••••• 

February ....... . ..... o.. . ...•........ 

March ....... ....... . . . . . .. ... .. . . . .... • . , .. April . ... .........•..• .. .. . ..•..• . ...•..•. . May ... . .. ... ......... . . . o ••• •• •• • •••••• • ••• 

June .. .... .. .... . .. .... . . . . . . . . . . ......... . July ... . ........ .. •..•.. •... .• .... •• .• . .... August .............. . 

September . .. . 

Water year 1940- 41 

War . Apr . llay 

22 

24 

26 

26 

26 

25 

24 

22 

20 

18 

18 

20 

28 

29 

•32 

32 

28 

28 

29 

31 

33 

34 

34 

• 34 

31 

30 

30 

32 

34 

32 

• 29 

Secondroot-days 

709 

541 

498 

498 

S04 

856 2 , 224 

39,539 

19,602 

5,838 

1,286 

1,049 

62 

46 

48 

46 

so 

303 

370 

603 

658 

852 

so 875 48 1 ,080 65 1 ,290 68 1,360 79 1,430 

70 1,590 68 2,040 70 2 , 410 60 2,270 

66 1,830 

70 1,580 77 1,620 68 1, 780 60 1,540 57 1,160 

58 1,010 67 1,140 

57 1 , 150 55 1 , 260 68 1 , 360 

75 1 , 4.4:0 100 1,460 140 1 1320 173 1,160 

237 1,040 

968 

WaximWD 

7l 

34 

237 2,410 

893 

389 

7 7 

100 

2,410 

* Winter dhoh.arge mu.auroment made on thh day. 

June 

893 

846 

867 

800 

724 

682 

806 

876 

703 

832 

804 

654 

541 

638 

636 

545 

572 

637 

682 

703 

682 

a8SO 

e840 

a8SO 

a680 

a620 

a560 

a500 

477 

418 

WinimWD 

15 

18 

46 

303 

418 

45 

22 

17 

July Aug . Sept . 

389 

386 

334 

31.7 

320 

303 

276 

247 

234 

21.0 

196 

190 

182 

176 

173 

163 

173 

158 

132 

dSO 

al20 

ueo 

al37 

85 

83 

77 

7l 

84 

67 

so 

46 

Wean 

22.9 

18.0 

16 

18 

18 

27 . 8 74 .1 1 , 275 

653 

182 

41.5 

35.0 

200 

42 

38 

36 

34 

34 

36 

60 

38 

7? 

77 

53 

48 

48 

48 

60 

53 

52 

53 

42 

37 

36 

48 

38 

31 

27 

28 

24 

22 

22 

27 

25 

24 

24 

22 

20 

20 

18 

18 

18 

21 

20 

19 

17 

18 

52 

42 

30 

27 

26 

24 

42 

79 

42 

70 

65 

37 

30 

27 

28 

81 

100 

Runott in 

acre-teet 

1 , 410 

1,070 

984 

984 

1 , 000 1,700 

4 , 410 78,420 

:58 , 880 11,180 

2 , 5SO 2 , 080 

144 , 700 

Co~o~o gqe-height record ; dhch.argo c omputed on basis or recorda tor Conejos River near l1ogote , 

~- Stage-discharge relation atrectod by ice Nov . 2 to l1ar. 31 (no gage - height record) o 
RIO GRANDE BASIN 203 

Culebra Creek at San Luis, Colo . 

Location .- Water-stage recorder and 12-t oot Parshall flume , lat. 37°11', 10118. 105°26•, 

In sec . 35, T. 3 N., R. 72 W. , Beaubien Grant survey, 1 m!le southeast or San Luis and 

li miles upstream !rom R!to Seco . 

Drainage area .- 220 SQuare m!les. 

Records avs!lable .- January 1910 to Decembe r 1911 and October 1933 to September 1941 in 

reports or oeologi cal Survey. May 1909 to Decembe r 1910 and Apr!l 1927 to September 1941 ln reports or State ell8ineer. 1911-19 (unpubl!shed) ln rues or State ell8ineer. 

Average discharge.- 24 years (1909-19, 1927-41). 65 .2 second-teet. 

Extremes.- Maximum discharge durill8 year, 411 second-teet June 24 (gage height, 3.84 teet); -minimum dally, 10 second-teet reb . 9 . . 1909-19, 1927-41 : Maximum dally discharge, 470 second-teet June 26, 1915; m!n!mum 

dally, 5 second-teet Sept. 14-16, 1934 . 

Remarks.- Records good except those t or period or lee etrect , which are !air. Diversions 

---aoove station tor irrigation . rlow regulated by Sanchez Reservoir on Ventero Creek 

(capac ity, 103,100 acre-teet). 

Discharge in second-teet water year October 1940 to September 1Q41 

Day Oct . Nov. Dec . Jan . Feb . War. 

1 22 22 29 30 23 26 2 23 22 29 30 11 14 3 23 14 29 29 26 30 4 22 21 29 29 26 30 5 26 20 29 30 22 31 

6 18 30 29 30 21 30 7 32 29 26 27 23 30 8 27 29 12 b28 21 26 9 27 26 28 b26 10 13 10 26 12 29 b26 26 29 

11 24 29 29 b22 26 30 12 20 30 29 b26 26 30 13 20 30 19 30 26 30 14 23 29 20 29 26 30 15 26 29 16 • 29 23 26 

16 24 29 14 22 11 14 17 23 29 32 24 27 30 18 21 29 30 24 29 33 19 20 30 29 27 29 3-4 20 22 29 29 29 29 33 

21 26 29 26 26 30 33 

22 24 29 12 26 26 30 

23 29 29 29 26 14 19 

24 29 29 25 29 30 29 

25 30 29 16 27 30 27 

~6 30 29 28 27 30 28 

27 32 29 29 27 29 26 

28 32 29 29 29 29 27 

29 28 29 28 27 - 20 

30 24 29 29 27 - 16 

31 24 - 30 26 - 18 

Month Secondtoot~ays 

October ... . . ..•.... . ..... , .. . .. .. ...• . .... 776 

Noveeber . . ... ...... ...... ........•. .•. . .... 807 

Deoeaber . . ........ . ......... . . ...... . . . .. 796 

------ Calendar year 1940 . .. .••.•..• •.• ..•. .... 21,094 . 8 

--- --- - January ..... ... . . ... .... .. • ... . , ........... 844 February . .. .... . ..... .. . ... .......•....... . 678 March ...... ... . . . ... . ... , ..... . ....•.... , .. 820 Apri l. .. . ......•...... . •..• .. • ... . . .. . ..•.. 677 llay . . . ... . ..... •. . • . ... . • . •..•..•. . •....... 1,482 

June .... . . ... . ....• ... . . ..•. . •..... . .... .. . 6,334. 

July . ... ......... . •..•.. .. •• .• . . . •. • ... .... 7,083 

August .. ............ . . . . . . . . .. . ....•.... . .. 4,168 September ......... ... .. . . .. , ... ........ .... 1 , 286 

"atar year 1940 ~l . ... ... . .... . ... . . ... . 24,749 

• W1nter d.ieoharge meaeurement made on thia d.a,.. b Staga-dhoha_rge relation arreoted. by 1ee . 

4885Ba 0 - 43 - 14 

Apr. llay June July Aug . Sept. 

26 30 00 

- 220 48 23 30 61 268 179 56 22 26 117 224 154 60 23 26 148 118 218 61 14 20 138 227 280 60 

14 26 123 202 300 66 21 24 101 260 306 43 23 27 86 282 261 60 26 29 74 272 209 « 27 27 60 247 116 38 

22 18 44 248 139 32 22 33 36 282 126 30 14 46 43 230 140 31 23 46 60 226 160 40 20 69 67 220 100 4-4 

23 82 122 194 84 41 23 7l. 260 222 53 38 22 74 261 220 90 ~9 

24 78 314 214 113 41 16 61 316 147 118 40 

22 62 269 231 109 41 26 67 276 243 97 42 27 51 309 231 77 46 26 47 361 211 69 41 29 44 298 226 96 38 

30 73 336 193 80 39 

26 82 298 100 78 38 21 60 279 202 12 38 20 56 244 267 00 60 23 54 200 282 55 41 

- 66 - 272 32 -

Maxiaua Minimum lie an Runort ill ac re-teet 

32 18 25.0 l ,MO 30 12 26.9 1 , 600 

32 12 25.6 1 , 000 

------ ------ ------ ------ 302 8.8 57.6 41,830 ------ ----- - -- - -- - 30 22 27.2 1,670 30 10 24.2 1,MO 34 13 26.6 1,630 

30 H 22 . 6 1 ,MO 82 18 47.8 2,940 361 36 178 10, 680 284 118 228 14,050 306 32 13-4 8 ,2'70 60 30 42 . 8 2,660 

361 10 67 . 8 49 090 
RIO GRANDE BASIN 

Culebra Creek below San Luls, Colo . 

Location .- Water-stage recorder, lat. 37°12', long . 105°26', ln sec . 27 T. 3 N., 1;1. 72 

w., Beaubien Grant survey, 500 teet below bridge on State Highway 166, 600 teet down- stream rrom Rl to Seco, and a quarter or a mlle southwest ot San Luls . 

Drainage area. - 255 square mlles . 

Records avallable.- August 1938 to September 1941 (no winter records most ysare). 

Extremes .- Maximum discharge during year, 630 second-teet May 16 (gage height, 3.85 teet), 

from rating curve extended above 300 second-teet; mlnlmum dally recorded, 25 second- teet Nov. 3, but may have been less during period or lee etrect. 1938-41 : Maximum discharge, that or May 16, 1941; mlnlmum dally recorded, 18 

second-teet Sept . 1, 1940, but may have been less during period or no record. 

Remarks.- Records good except those tor pe riods ot lee etrect, whl ch are ralr. 01 verslons 

---a1iOVe stat 1 on tor lrrlgatlon. 

Discharge , in second-teet, water year October 1940 to September l~l 

Day Oct. Nov . Deo . J an . Feb. War. Apr. llay Juno Ju ly AU& . Sept . 

l 3e 30 39 51 " 116 ll66 248 2 39 31 " 37 48 .. 120 248 199 63 

3 38 25 'Z7 46 46 160 216 164 48 4 38 31 38 48 46 211 117 234 48 5 42 27 u 39 36 205 l!l9 302 62 

6 30 40 40 37 " 170 206 326 67 7 42 •37 40 40 46 147 231 320 8 37 40 38 42 49 129 290 293 " &0 

9 40 39 30 42 70 lll 290 263 

10 37 26 37 49 62 7l 261 l 3l " 38 

·u 37 40 u 42 71 62 248 147 30 12 30 39 41 4l 120 67 'Z78 126 30 13 31 39 41 33 160 67 240 142 36 14 33 38 .40 40 206 60 246 ig& 42 

15 M 37 C• l 36 40 311 61 228 .. 36 43 4< 16 34 37 29 040 470 111 208 78 49 17 33 37 C•l 36 40 361 240 282 61 42 

18 32 38 39 40 264 2M 8211 77 42 19 30 4l 43 40 242 323 286 113 48 20 33 40 46 40 228 326 167 180 48 

21 34 39 " 39 214 284 242 109 4t 22 33 39 43 u 194 302 261 98 48 

23 36 39 36 46 160 311 242 76 67 24 39 39 48 41 106 380 228 66 .. 25 42 40 ,e2 " 104 317 864 ge 66 

26 39 40 eo 48 129 368 222 78 66 27 42 40 66 u 160 314 167 77 66 28 46 40 67 37 113 306 226 74 .. 29 39 40 61 37 100 216 281 57 78 

30 33 40 .. 39 94 2117 3].4 ro .. 31 34 .. 122 308 

Month Second- llaxJ.IIUII Miniaua Moan Runott 1J1 toot-days ac;r~teet 

October . . .. ~ .•. . .. . .... . .....•.. •.. .. . .. 1,12& .. 30 36~ 2,860 

November ...... ... ....• . .•.•... . .•. . •... 1,108 41 26 36. 9 2,300 

December .. . ........ ..................... 1,086 36 2 ,1&0 

------- Calendar year ....... ... ..... ...... . 

------- January . . . . . . . . . . . ... . . . ..• . . . . . . ... . . . . . .. 1,3~ 43 2,&40 

February . . . . .... . . . .. ....... . . ..... . . . . . . . . 1,120 40 2,220 

March .... . . . ........ .... .... .. . . .. . . ..... . . 1,806 68 'Z7 42.1 2 ,690 

Ap ril .... . . . .•. ..... . • . ......• . .•. . . .•..•.. 1,860 61 3~ 41.7 2,480 

May ••...•••.. •••.. . .. • . .. •.•.•. .. ••... . •••. 4,403 470 36 142 8,730 

June .............. • ....... . ......... . . ... .. 8,034 380 67 201 11,8'70 

J uly ..... . ........... . ... ... . ....... ....... 1._337 314 117 23'7 14,660 

August .................... • .. • ..• ... . • ..... 4,385 aee 30 141 8,700 

September .. . . ... ... ... .. . .. .......... • ..... 1,470 78 30 49.0 2,020 

Water year 104~1 ..... ....... .......... 31,966 470 87.6 ~.380 

• Winter d.ieob.rge MaeureMDt .. de on th1• day. llote .. - Stage-41soharge relation atteoted by 1oe lOT .. 11-17, 21-24, lOT. ee ~liar. 2& (DO pp 

be'I'ilit' reoord.) .. 
RIO GRANDE: BASIN 205 

Costilla Creek above reservoir, near Costilla, N. Mex. 

Location .- Water-stage r eco rder and concrete control , lat. 36°54'25', long. 105°15' 00', 

In Sangre de Cristo Grant , 2l miles by road upstream !rom Costilla Dam, and 17 miles 

southeast or Costilla, Taos County. 

Records available.- April 1937 to September 1941 (!rrtgat!on season onl y}. 

E:xtremes.- Maximum discharge recorded during year, 81 second-teet June 22 (gage height , 1.11 feet); minimum dally reco rded, 2 .2 second-teet Oct. 17, 18 . 1937-41: Maximum discharge recorded , 175 second-feet May 15, 1938 (gage hei gh t, 

1.90 teet); minimum dally recorded , 2.0 second-teet Aug . 29 , 1940. 

Remarks.- Records tat r except those tor periods or no gage-height record , which are poor. 

Dlsoharge, in second-feat, water year October 194-0 to Saplellbar 1~1 

Day Oct. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

2 .1 

2. :::i 

a2. 

!~:: 2.8 

Nov. Dec . Jan. Feb. 

Month 

October 1-23 ••. ........ .. ..... . . . •. . •.. . . .. Nove•bar ........ . ............ .. . . •..•.. . ... Deoeaber ..... . ... . . . . . •..•... . . ......... , . . 

Calendar year 

January . ... . ........... . .. . .... .. • . ....... . February .. . ...•.... .... ............ . •.. March ............ . . • ..•........ . . . ......... 

April ..... . ... .....•..•..•.. . ..•..•.•... . .. 

Ma r . 

Seoondtoot-daya 

Apr . ll&y Juno 

84 

4.0 2.2 

ll&y . . . . . . . . . . . . • . . . • . . • . . • . . . . . . . . . . • . . • . . . 998 64 27 

Juno 10-30 . . ....... . . . ...... ...... • · · • · · · · · 471 •

0 28 8 .5 

July 

26 

24 

20 

1P 

20 

20 

17 

18 

1P 

17 

28 

20 

15 

18 

17 

14 

13 

15 

14 

14 

12 

10 

10 

Q,5 

10 

10 

10 

P.o 

P.O 

8.5 

11 

10 

7.6 

8.0 

8.0 

7.5 

9 . 0 8.o 

9.0 

11 

8 .o 

8.8 

9.5 

10 

7 . 5 8.2 

8.2 

8.o 

10 

6,2 

5.8 

7.6 

7 . 8 8.8 

5.0 

4,6 

5 .4 

4,2 

4.2 

4.8 

4.6 

5,0 

Sept . 

4.6 

4.2 

3.0 

2 . 8 2.8 

3.4 

2 . 8 2 . 6 :5 ••• 3.• 

3.0 

3.0 

3.4 

4.2 

4.2 

3.S 

4 . 2 

4.2 

4.8 

4.8 

6.2 

15 

10 

5.4 

4.6 

4.2 

3.8 

5.4 

18 

7.5 

Moan Runott in acre-teet 

125 

47.6 

1~:~ i~~ ;.i :::::::::::::::::::::: :: :::::: :: 223.1 ~ !:: 

Septo11be r .. . . . . . . . . . . •. .•..•.. . .... • . . ... "1---1:_50:.__:._3-1------+----+------j---- 5.0 

later year 

a Jo gaae-bel&bt reoordJ <Ueoharge interpolated. 
206 RIO GRANDE BABIN 

Costilla Creek below reservoi r, near Cost illa, N. Mex . 

Loca tion.- wate!'-stage recorder and concre t e control , lat . 36°52 ' 25", long. 105°16 '55", 

In Sangr e de Cr isto Grant , 125 t ee t downstream ! rom outlet or Costilla Dam and 16 

m!les southeast or costlna, Taos County. 

Records ava ilable.- Apr!l 1937 t o Septembe r 1941 (Irri gation seasons only} . 

Extremes. - Max imum discharge reco rded dur ing year, 212 second- t eet J une 23 (gage height, 

2.18 t eet} ; mi nimum da lly recorded , 0.9 second- t oot Sept. 29 and 30 . 1937-41 : Maxi mum d ischarge recorded , 225 second-teet J ul y 23 , 1937 (gage he i ght , 2 .24 t eet} ; mi nimum dally r ecorded, 0 .4 second-root May 21-25 and June 15, 1940. 

Remarks.- Reco rds good. No d iversion above stat ion. Flow regulated by Costilla Rese r- ---vorF"" (capa city, 20 , 750 ac re-!eet} . 

Discharge , in second-feet. water yea r Oc tober 1940 to September 1941 

DoJI Oct. Nov . Dec . Jan . Feb. War . Apr . June Jul y Au& . Sept. 

1 8.9 57 176 9 2 86 2 6.0 57 176 6 2 8• 3 6.0 61 175 91 a. 4 6.0 91 176 164 81 5 6.0 97 176 1~ :!8 

6 6.0 98 175 1~ 18 7 6.0 98 176 1 64 33 8 •• o 98 176 81 71 9 1.9 106 176 39 60 10 1.7 H1 176 72 .. 11 1.9 138 176 1113 29 12 1.9 138 173 152 L9 13 l •• 10 2 173 H 7 H 14 1.9 69 173 H1 H 15 1.9 65 175 70 H 

16 1.9 69 176 40 H 17 1.9 106 175 61 H 18 1.9 138 175 88 18 19 1.9 169 173 :!8 18 20 1.9 183 173 50 H 

21 1.9 183 172 74 H 22 1.9 197 174 50 H 23 1.9 197 173 30 10 24 177 1'7:2 •6 4.9 25 

26 

27 

28 

' 29 

30 

31 

Month 

October . 1-2:5 . . .......... .. ... .... . . . ... . Nove•ber .............. . . ..•... . . ....... Deceaber ........ . 

Calendar year 

January . February .. . . ... . ... . .. .• . . ....... . . . .... March. . . • . .•... . ..... #,pril ... ...... ... . ..... . ...... . .. Jloy . . . .......... . ....... . .. . . . 

June .. ........ . ... . ... .. ........... . ... . 

~~ ·· ·········· .•....... . . August . .. . .. . ................ . September . . ... . . .. .. . ..•. . .. . ...... 

late r year 

Secondtoot-days 

77.~ 

692 

5,3~~ 

2 , 699 

827.8 

8.9 

197 

176 

1~ 

85 

177 

159 

150 

150 

125 

116 

IUni.au 

1.7 

55 

152 

26 .9 

172 

170 

169 

166 

152 

156 

162 

Moan 

3.:16 

123 

172 

87.1 -

27.6 

91 4.9 

91 5.2 87 5.2 

85 2.8 46 . 9 26 .9 40 

Runott 1n aor&-teet 

153 

~20 

l0p580 

~,350 

1,e4o 
RIO GRANDE BASI N 207 

Costilla Creek near Costilla, N. Mex . 

Location.- Wate r-stage recorde r, lat . 36°56', long. 105°32 ', !n Sangre de Cristo Grant, 

halt a mile upstream !rom d!vers!on dam and 2 miles south or Costilla, Taos County. 

Records available .- March 1936 to Septembe r 1941 (irrigation seasons only). 

Extremes.- Maximum discharge recorded during year, 794 second-teet May 22 (gage height, 4.98 f eet), !rom rating curve extended above 320 second-tee t by logar!thlll!c plotting; m!n!mum dally recorded, 13 second-rest Oct. 17-26, Nov. 1. 1936-41: Maximum discharge recorded, 692 second-teet Apr. 13, 1937 , rrom rating curve extended above 164 second-r est ; maximum gage height recorded, that or May 22 , 1941 ; min imum dally recorded, ll second-teet Oct. 7, 9-11, 1937 . 

Remarks.- Records good ! or October, Apr!l to July: !a!r !or August and Sept ember, except ---rorj5eri ods or doubtful or no gage-height r ecord, whi ch are poor. D!vers!ons above 

stst!on ror 1rr1gat1on . 

Discharge , in second-teet. water year October 1940 to September 1~1 

Da1 Oct . 

l 

2 

3 

4 

5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

26 

22 

21 

18 

16 

17 

16 

16 

H 

14 

14 

13 

13 

13 

13 

13 

13 

13 

13 

13 

13 

16 

1S 

16 

17 

15 

Nov . Dec . Jan . 

13 

t16 16 

Month 

Ootober ........ • ..••...•..• .. ... . . 

Feb . 

Novaabe r ............ . ....... . . . .. . ... ..... . Oeoeabe r .................... . . . . . .. . ...... . 

Calendar year 

January . . . .... . ...... ·· ··· • · · • · · · · · · · · · · · · · February . .. . ....... . . . . . .. . .. . . . . . . . ...... . 

War. 

Seoondroot-<1""1& 

Apr . 

113 

136 

149 

151 

152 

207 

261 

282 

329 

29S 

261 

349 

406 

445 

406 

359 

339 

467 

497 

349 

38 302 35 462 

36 ) 32 

38 a400 

38 

53 

68 

74 346 

88 333 

323 

35 

June 

317 

302 

308 

349 

330 

333 

336 

333 

320 

317 

305 

299 

282 

197 213 

219 

276 

336 

369 

359 

336 

349 

362 

330 

336 

2IH5 

274 

263 

239 

213 

13 

July 

239 

246 

241 

241 

241 

239 

230 219 

221 221 

217 

230 

226 

216 

217 

213 

211 

232 

219 

219 

219 

219 

217 

217 

219 

216 

209 

207 

190 

183 

195 

Mean 

Aug . 

dl60 

d120 

dlOO 

184 

186 

190 

186 

162 d100 

d70 

170 1S4 

174 

165 

156 

dlOO 

d60 

<1100 

11.120 

a60 

a70 

11.100 

a70 

oW 

aBO 

ol20 

o.120 

o.110 

allO 

a70 

a60 

Sept . 

a70 

a100 

a100 

olOO 

aBO 

d 40 

d50 

d90 

aBO 

67 

42 

31 

26 

2Q 

24 

21 

20 

22 

30 

29 

33 

39 

41 

28 

21 

20 

18 

19 

38 

M 

Runoff in ac're-feet 

1,070 

llarob ........ .. .. .• . . . . . . . •..•..•. · · · · · · · · · 32 g 1 1 4io 

Apri l .1&-~o .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7~7 86 " " 20 :oeo 

llay . . . . . . . . . . . . • . . • . . . . . . . • . . • . . . . . . . . . . . . . 10,112 ~:~ t~~ ~~ 1B,030 

~::';; ::::::::::::: :::: :::::: :: :::::: ::~ 246 183 220 13,UO 

August . ......... ....... . ..... • .. •.. . . . . . . . . ~ ,&!7 110090 501B ~: .7 ~ •,~ Septeaber .........•..•.. . .• . . •.. .. .•.. . .... 1 _ _ _:1.:,3:.•:;2+ _ _ ...:.:..:..!-----+---- -!-----

Water year 

t Dhoharge measurement. 1 a Wo gage .. belgbt rooordJ d1eoharge ooaputod on ~e11 or weather recorda and reoorda tor etat on 

below Ooatllla Jteaenolr. 4 4 Doubtful r.ge-helgbt record; dleobarge OOJ!lputod on baah or gage bolgbta , '"'ather recorde , m 

recorda tor a atlon below Costilla RoaoMo1r. 
208 RIO GRANDE: BASIN 

Casias Creek near Costilla , N. Mex. 

Location .- Water-stage recorder ana concrete control, lat. 36°54'05", long. 105°15 '30', 

1n Sangre ae Cristo Grant, 200 teet aownstream from roaa crossi ng , 2.5 miles by roaa upstream trom Costilla Dam, ana 17 miles southeast ot Costilla, Taos County. 

Records available.- April 1937 to September 1941 (Irrigation season only ) . 

E:xtremes.- Maximum alscharge recordea aurlng year, 110 secona-tee t June 24 (gage h~!ght, 

1.60 tee t) ; minimum aa!ly recordea, 5.1 secona-teet Oct. 19 . 1937-41 : Maximum alscharge recordea , that ot June 24 1941; msxtmum gage height recordea , l. 90 t eet June 14, 1938 (backwater from Cost Ilia Reservoir); min imum aa!ly atscharge recordea, 3.0 secona-teet Aug . 14 , 1939 . 

Remarks.- Recoras gooa except those tor perloa ot no gage-hetght record, whi ch are talr. 

-roaTverstons above Statton . 

Disch.ar&e . in second-teet , water year October ~ to Septeaber l Qtl 

Oa Oot . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

8.1 

7.6 

8,6 

8.1 

8 ,6 

8,1 

7.1 

7.1 

6.7 

7.1 

6,7 

6,2 

6,2 

6.7 

6.7 

6 . 7 6.4 

5 .7 

6.1 

6,4 

Nov. Dec . Jan . Fob. 

llonth 

October. l-2:5 . .... . ... ... . . . . . ..... . . .. . .. . . November ..... . . .. . ... . ... • . . . . . . . • .. •.. . .. . 

Oece11ber ...... . .. ... . ....• . . •..... . . ..... 

Calendar year 

January. ... . . . . . . . . . .. . . . . .. • . ... . .... February . . . . . . ... . . .. .. .. •.. . ....•.... . .... March .. . ... .. . . . . . . .. . . .. • ..... _ ... . •.. . .. . April. .. . . .. ....... . ... ............... . ... . lloy . .. . . . . .. . . . ..• . . . . . . . . ..•. . ..•..•.. . . . . Juno ll-l50 . . . ... .... .... . .. ... . ...... . . 

July ....... . .... .. . . . . . . ... ... . .... .. . August . . .... . . . . ... ...•. . •.. . . .. . •.. • ... .. . 

Septeaber . . .. . .. . ... . .... • .. . .. .. . .. . . . . . . . 

Water year .... ... ..... . . . ... . . . . 

War . 

Seoond-

!oot-da.Ja 

151.1 

1,6Qo 

l ,419 

662 a1a.a 

Apr . 

a.e 

gg 

77 

28 

22 

Juno 

62 

61 

a66 

a56 

a66 

lliniiiUII 

65 

26 

12 

8 .1 

July Au& . Sept . 

77 

69 

66 

~ 

~ 

69 

66 

64 

56 

60 

~ 

sa 

48 

48 

48 

47 

42 

42 

ta 

as 

37 

:5e 

M 

a1 

a1 

29 

29 

29 

2'1 

27 

28 

lloan 

79,6 

46.8 

18.1 

10 .6 

26 

23 

23 

23 

22 

2'1 

1!0 

1!0 

24 

19 

2l 

28 

2l 

18 

17 

16 

1!0 

18 

16 

16 

16 

15 

14 

l3 

1a 

1a 

1a 

12 

1a 

l2 

re 

12 

n 

10 

9,6 

10 

9.1 

a.6 

9.1 

9.1 

a.6 

a.6 

a..e 

a.6 

ll 

e.6 

8.1 

8.6 

8,6 

8.1 

9,6 

12 

17 

16 

ll 

10 

10 

9.6 

13 

22 

14 

Runotr~ 

aore-t6et 

3,1So 

2,810 

1,110 ~2 

r-------r------+------~------+-------

a Ifo ga8'8"-he18bt reoordJ d1aoha.rge coaputed on bu1a ot weather recorda and recorda tar Costllla Oreek a bOTe Reaerr01r and Sant-late"fan Oreell: near Ooet11la. 
RIO GRANDE BASIN 209 

Santistevan Cr eek near Costilla, N. Mex. 

Locati on .- Water- stage re corde r and me t al Parshall flume , lat . 36°53 ' 05', long . 105°16'50', 

In Sangre de Crist o Gran t, 200 teet upst r eam f rom road crossi ng, 0 . 9 mile upstream from 

Costi lla Dam, and 16 miles southeast ot Costilla, Taos County . 

Records ava i lable. - Apri l 1937 t o Septembe r 1941 ( Irri gation season only) . 

Extr emes .- Maximum discharge recorded during year, 18 second-t eet Aug. 11 (gage he i ght, 1.73 t eet ); mi nimum da lly recorded, 0 . 9 second-toot Oct . 20- 23 . 1937-41 : Max imum d is cha rge recorded , that ot Aug . 11 , 1941 ; mi nimum dally recorded , 0 . 5 second-t oo t, Oct . 23, 1938 . 

Remarks.- Records fair except t hos e tor pe r iod ot no gage height re cord , which a re poor . ve rsi on s above station. 

Discharge . in second-teet , water year Ootober 1040 to September 1941 

Da,y Oct . Nov . Dec . Jan . Feb . Mar. Apr . lla,y June 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

1-0 

1-0 

l.O 

1- 1 

1-0 

1 -0 1 . 0 

1-0 

l.O 

1-0 

1.0 9.3 1.0 e.g 1.0 e.1 1-0 7 -9 1.0 e.o 

1.0 e.o 1.0 6.e 1.0 all 1.0 all .g all 

. g al2 

.9 al6 

. 9 a.l3 

llcnth Secondroot-days 

a15 

u 

9 . 4 l4 

14 g,g l4 

14 

13 

Mlnimu.. 

October 1-23 . .. .. . . . . . . ... .... . •...... . ... 22.7 1.1 o . 9 

November ... . .. . ..... . • . ......•..•.... . . . .. . 

Oece•ber , ...... . ...... .. . . ... . ..... . . .• . 

Calendar year 

January ........... . . . . .. . . . . . . . .•.... ... ... February . . ...........•.. . ... .. ..•.. . . . .. .•. March .......... . • .. .. .. ... . . . . ..•..•..• . ... Ap ril ...........•.. ..• . . • . ... . .. .. .• . ... . • . 

J uly Aug . Sept . 

13 

12 

ll 

ll 

ll 

9 . 9 9 .1 

e.e 

e.e 

e.6 

g .4 

e.6 

e.o 

e.o 

e.1 

7. 9 

7.4 

7 .6 

7.4 

7.0 

7 . 2 

6-7 

6 -3 6. 0 s.e 

5.6 

5 . 3 6 . 4 

5 .4 

5. 1 4. 9 

lie an 

o .g9 

2-6 

2 .3 

2.3 

2.3 

2.2 

2.2 

2 .2 

2-1 

2.1 

2 -1 

2 .0 

1 -9 2 .0 

2 -2 e .o 

1 -9 2.1 

2. 0 

1.9 

2 . 2 

2 .2 

2-5 

2.1 

1-8 

1 .7 

1-7 

1.6 

1-9 

2.4 

1.8 

Runott ill 

acre-teet 

~~~ li.~ 3o :. :::::::::::::::::::: :: :: :: :: 229.0 16 6.8 11.4 ~4 July .. ... ........ . .. . .... . .. .. ..... .. . .. ... 247.3 13 4 -9 7.98 491 Augus t . .... ..... ,......... 109-3 4.9 2.6 3.53 217 

Sopteabor . . . , . . , .. , .• ....... . ..• . ...... l-_ _:6::2::·.::3+ __ ...:;2::·.::6+-__ ..:1:.:.·.:.6t---=2:..·..:0..:B+-__ ..:l2=4 

Water year 

a Doubtt'Ul. or no gage-height record.J discharge oanputed on baela ot recorda at atatlona on Costilla 

Creek above reservoir and Caaiaa Creek near Coatlll&· 
210 RIO GRANDE BASIN 

Lat!r Creek near Cerro , N.Mex. 

Location .- Wate!'-stage recorder and concrete Parshall tlume, lat. 36°49'45" , long. 105"32'45", !n Slit sec. 15, T. 30 N., R. 13 E., at mouth or canyon , 100 teet upstream rrom heading or Cerro community d! tch and 6 m!les northeast or Cerro . 

Records ava!lable .- Apr!l 1937 to September 1941 (!rr!gat!on seasons only}. 

Extremes .- Maximum discharge recorded during year, 63 second-teet Aug. 9 (gage height , 1.96 f eet}, !rom rating curve extended above 49 second-teet; minimum dally recorded, 1.9 second-teet Nov. 12. 1937- 41 : Maximum discharge recorded, 7l second-teet June 13, 1938, !rom rating curve extended above 34 second-teet by logar!thm!c plotting ; probably higher stagee occurred duri ng May and June 1937, discharge not determined; maximum gage-height re- corded, that or Aug. 9 , 1941; minimum dally discharge recorded, 0 .6 second-toot May 9, 1937. 

Remarks .- Records !a!r. No d!vers!ons above station. 

Discharge , in second-teet , water year October 1940 to September 1.9U 

OaJ Oct . Nov . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

3 . 6 3 .1 3 .6 3 .1 ~.3 .1 

3.~ ~. 1 

3 . 4 3. 1 

3.4 .1 

3.3 3.0 3. 4 3.0 

~.4 a3.o 3.4 ~. 1 

u 3.4 ~·3 3.6 

3.1 

October .. . November ......... . 

December .. 

Calendar yea r 

Dec. Jan . Feb . 

llontb 

January .. . . . . ..... . •.......•.. • ... 

February ......... .. .• .. •... ....•. ...• . . llarch . ............. . •.... . ..•..•....... Apri l. ..................... .. ......... . 

War . 

Secondroot-d.aya 

Apr . 

120 

88.3 

31 

32 

33 

29 

25 

25 

28 

28 

28 

32 

M 

~ 

34 

~· 5 

35 

June 

36 

~~ 

~ 

33 

36 

35 

~7 

39 

35 

32 

28 

26 

27 

30 

~5 

38 

42 

48 

51 

50 

48 

48 

40 

50 

50 

48 

40 

6 

42 

37 

2.8 

1.9 

Jul y 

~s 

3~ 

31 

1 

29 

27 

25 

27 

29 

26 

29 

26 

23 

20 

18 

17 

16 

18 

15 

14 

l4 

13 

l2 

l2 

11 

11 

ll 

10 

9 .5 

9.2 

9.o 

.~ 

8 . 2 a.o 

7.6 

a .o 

9 . 7 

9 .0 

a .o 20 

19 

16 

20 

16 

14 

13 

14 

l4 

ll 

9.5 

s.o 

a.o 

.~ 

7.7 

7. 5 7.0 

6 ·8 

6 .5 

6 . 6 

6 .6 

6.8 

5. 4 

Sept . 

4.5 

4·7 

5. 1 

9.0 

6 .4 

5 .3 

s.1 

5 . 3 

5.3 

6.8 

e .o 12 

12 

8.4 

7.3 

6.8 

6.~ 

6.8 

20 

l2 

lie an Runott 1n 

acre-teet 

3.97 2 .94 239 

175 

Jlay 16- 31.. . . . . . . . .. . . . .. . .. . .. . . . .. . . . . . . 499 35 25 31 .1 999 

June .......... . ....... . ... ... .. .... . . . ..... 1 ,184 51 26 39.5 2 11 350 July ..................... .. ... . ............ 610 . 7 35 9. 0 19.7 1,210 August .. ....... .... . . . ............ .. ....... 319.7 20 6. 4 10.3 634 

September. . . . . ... . •...... f---'2.:.0_7_. 4'-t---'2-'0-+--- -=•.:.·.:. 5+---'5'-·.:9.::l t-___ 41:;· =1 

Water year 

• No gage -height rocord. J die charge computed on bae1a ot reeordD tor Rio Colorado near Questa. 
RIO GRANDE BASI N 211 

R1 o Colorado near Red R1 ver, N. Mex. 

Location .- Water-stage recorder, lat. 36°37'20", long . 105°23' 30" , ln NEt sec. 36, T. 28 N. , R. 14 E. , 100 teet downstream ;rom Junction or Mlddle Fork and East Fork or .Rio 

Colorado and 6 mlles south or Red R1 ver . 

Records available .- July 1940 to September 1941. 

Extremes.- 1940: Maximum dlscnarge durlng perlod July to September, 22 second-teet Aug. I (gage-he lght, 1.66 reet); mlnlmum dally, 8.4 second-teet Sept . 14- 16. 1940-41 : Maximum discharge recorded durlng water year, 218 second-teet June 19 

(gap;e-helght, 2 .92 teet), from ratlng curve extended above 160 second-teet by logarlth- mlc plotting; mlnlmum dally, 5 second-teet Dec . 16. 

Remarks.- Records ror July to December 1940 talr, others good. No dlverslon above 

--ste:tfon . 

Da 

1 

2 

3 

4 

~ 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Jl&y J\1].,. Aug. 

1 - 16 

2 - 15 

3 - 13 

4 - 12 

5 - 12 

6 - 12 

7 - 12 

8 - 1 3 9 - 12 10 - 12 

Oct . Nov . Dec . 

ll 7.9 6 . 7 ll So4 6.4 ll 8 . 4 6-7 ll 6-1 6 -7 12 7-6 6 -4 

14 8-1 6.7 13 8.1 6-4 13 8 . 1 6.2 13 7 -9 6.2 13 6.9 6 . 4 

13 6·0 6 - 4 13 6.4 6.2 12 b6-0 b6 12 b6-5 b7 11 b7.5 b6 

ll 8-1 aS ll 7.9 a6 10 7.6 a7 10 7.9 *6 -4 10 7.4 - 9.7 7.2 - <>9.7 7.2 - 9 . 3 7.4 - 9.3 7.6 - 9.3 7 . 4 - 8.6 7.2 - 9.0 6 -7 - 7-9 7 . 2 - 8-4 6 .9 - 9.3 e.g - e . 4 - -

Discharge, in aeeond- t'eot, 1940- 41 

1940 

Sept. DB,- J\1].,. Aug . Sept. -Dal 

ll 11 - 12 9.7 21 10 12 - ll 9.0 22 9.3 13 - 11 8-6 23 9. 0 14 - ll 8 .4 24 

8 -6 15 - 10 8. 4 26 

8.6 16 - 10 8-4 26 

10 17 - 10 9 .o 27 

9.3 18 - 11 10 29 

9 .0 19 13 10 13 29 

10 20 14 11 11 30 

31 

1940-41 

J an. Feb . Mar. Apr . lla,y 

- 10 

- 11 

- 12 

- 12 

- 14 

- 19 

- 25 

- 31 

- 39 

- 42 

- 51 

- 66 

- 94 

- 113 

- 109 

- 103 

- 105 

- 121 

- 125 

- gg 

- 81 

- 77 7.9 75 7.6 75 7.4 96 

7.4 121 7 . 4 132 7 . 4 139 7.9 141 8-4 139 

- 148 

• Winter dlaohar g o measurement made on th1a day. 

J\ll.:r A"" · Soot. 

H ll 13 

13 ll ll 

13 12 ll 

13 12 11 12 11 12 

1 3 ll 12 13 10 ll 

12 10 11 1 3 10 ll 

13 10 ll 

14 ll -

June July Au& . 

146 121 40 126 113 38 125 109 37 132 lll 37 141 107 36 

1~ 97 36 

148 94 33 160 90 33 136 9 4 34 113 90 34 

97 90 33 88 88 36 

88 87 34 94 85 32 105 85 30 

lll 77 28 134 75 32 168 78 29 196 73 31 205 73 30 

188 73 29 166 64 29 166 60 27 171 59 25 190 57 24 

179 56 22 

168 52 21 160 52 21 148 48 19 134 45 19 

- 42 19 

Sept . 

19 

18 

18 

17 

17 

17 

16 

17 

16 

15 

16 

16 

16 

17 

16 

16 

15 

14 

14 

15 

17 

23 

26 

21 

19 

17 

16 

17 

28 

2 4 

-

a lfo gage- height record; d.iachal"ge computed on baela o:t ..eatber recorda and recorda tor ~t.tona 

on Rio Hondo near Valdez and Rio Lucero noa.r Arroyo Seoo. b Stage - dlaehargo relation a.ttoctod by lee . 

"onthly_ dlacharge i.n aeoond.-foot 1940-·U 

llonth Secondfoot-days Minima. 

J\ll.,- 19-31, 1940........... . ............. . . 170 H 12 

lie an Aunorr ln acre-feet 

13·.1 ~37 

Auguot . . . . . . • • . . . . . . . . . . . . . . • . . . . . • . . . . . . . • 356 16 10 11.5 704 

September •.. .••.. . ....•••• .. . . ............ . f--__:3~0~4c:.·~3f--~1:::3~+---..::8:.:.·~-/---==="-f---=.! 10 . 1 . 604 

Tho period .•• . . .• . .....•..•.........•. . •• ~--=~ ---::-=--+---::=::-+--..,-,e=:::-+--....,_.'E' 

Oo lobor 1940... . . . .. .......... .. ..... . ..... 333 .9 14 7 . 9 

1-

10.8 662 

Novembe r ............ . ................. ... .. 222.5 8-4 6.0 

Deoeaber l-19.. . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 .a 7 5 

Calendar year 

January 194.1 . .. .... . . .. ..•.. .... .... . · . · · · February ....... .. . .....•....... . ..... March . .. . .........•.. . . .. . . . . ... • .. .. . ..... 

Ap ril 23-30 . . ... . . •. .•.. . .. . . .... ..•....... lloy . ....... . .........•........... June ............ .... ... . . .... . .. .. ... . Ju ly .. ..........•.... • . . . . .• . .... . ....... . . August . .........•.......•..•..•..•.. .... . .. 

September ..... . ...... . .....•. 

Water yea r 

61.4 2 , 425 4,:ns 2 , 445 

926 

530 

8 -4 7 -4 148 10 21)5 88 121 42 

40 19 

28 14 

7-42 441 

6-36 240 

7 . 68 122 78 -2 4,810 144 8 , 560 78 -9 4,860 29.9 1,840 

17-7 1,050 
212 RI 0 GRANDE BABIN 

R!o Colorado near Questa, N. Max. 

Location .- Water -stage r ecorde r and concrete control , lat . 36°42 ' , long. 105°33 ', !n sec. 33, '!'. 29 N. , R. 13 E. , H m!les upstream !rom Cab res to Creek and 2 m!les east or Questa. Datum or gage !s 7,449 .66 teet above mean sea level. 

Drainage area.- 112 square m!les . 

Records available .- Octobe r 1912 to August 1915 (fragmentary) and October 1930 to Se.p tember 1941 !n reports or Geolog ! cal Survey . Octobe r 1912 to December 1931 !n re- ports or State engineer. 

Average discharge.- 25 years (1915-25, 1926-41) , 66 .1 second-teet. 

E:xtremes.- Maximum discharge dur!ng yea r , 637 second-teet May 14 (gage he!ght , 2 .12 teet), 

from rat!ng curves extended above 150 and 457 second-teet by logar! thm!c plotting; 

m!nlmum dally, ll second-teet Dec . 16 . 1930-41: Maximum discharge, 670 second-teet June 14 , 1935 (gage he !ght, 3.14 teet datum then l n use), !rom rating curve extended above 250 second-teet by logar! thmlc 

plotting; m!nlmum dally , 6 .3 second-teet Nov . 24, 25, 1931 . 

Remarks.- Records !a!r except those tor periods or no gage he!ghte, l ee errect, and those 

-----roFflay to September, wh!ch are poor . D!verslons above stati on t or !rrlgatlon . 

Discharge , in second- teet. water year October 1940 to September 1941 

Da Oot . Nov . Dec. J an . Fob . Wa r . Apr . llay Juno J uly Aug . Sept . 

1 25 22 16 bl4 20 a19 26 76 {59 262 90 54 

2 24 2Z 17 biZ 17 a22 26 96 456 260 92 52 

3 25 2Z 16 12 1 5 a2l 26 109 472 2 45 87 51 4 27 24 16 12 15 a2l 27 106 507 2ZS eo 51 

5 26 21 16 l Z 16 a 2l 27 109 516 2ZO 78 49 

6 28 2Z lB a!Z 17 a.20 26 142 520 220 75 {8 

7 27 23 lB al4 20 a20 27 175 620 20B 7l 46 

8 27 2Z 17 al4 17 alB 2B 199 5ZS 195 70 46 

9 2B 2Z lB al5 1 6 a20 29 2ZO 556 191 70 46 10 29 24 21 al5 19 alB Z2 ZZ5 502 185 6B 44 

11 29 17 21 &15 lB a20 Z2 312 452 185 67 4Z 12 2B 15 21 al.6 lB a19 Z6 364 412 165 69 42 

13 2B l4 20 a17 19 ale 39 406 382 171 68 42 

14 28 l4 18 8.17 18 a18 40 493 Z79 165 65 42 

15 2B 15 l Z a16 19 alB 42 374 400 161 62 42 

16 28 18 11 a.l5 20 al8 49 Z90 Z96 155 61 40 17 28 22 16 al4 20 al9 57 H3 404 l5Z 61 39 lB 27 24 21 &14 20 20 62 4Zl 452 151 64 ze 19 26 25 1 3 alZ 20 21 55 427 476 151 60 36 20 27 24 13 al3 20 22 49 413 460 149 59 36 

21 27 22 15 a14 20 22 51 379 446 149 59 Z8 

22 25 21 , 16 al5 20 22 47 400 428 149 59 44 

23 2Z 22 19 al6 20 21 44 386 412 147 60 47 

24 25 ~~ ~ 2Z a17 20 23 42 372 404 144 59 44 

25 23 u alB 20 21 44 412 400 140 56 42 

' 26 22 21 21 a.l 8 17 22 42 412 390 130 58 39 

27 23 20 bl6 19 al7 21 49 408 376 128 56 39 

28 24 15 b12 18 &18 23 51 408 Z54 117 56 Z8 

29 23- 16 b13 20 - 24 54 40B 334 ll2 60 46 

30 24 20 bl4 21 - 24 65 456 ZQ3 97 59 46 31 24 - bl4 20 - 24 - 468 - 67 66 -

Wonth Second- Maxi•wa Mini mum Moan Runo tt in toot-days acr&-teet 

Oc tobe r ..... .... .... ........ . ....... ..... 606 29 22 26.0 1,600 

November ... .... . ... . . . . . . . . . . . . . . . . . . ...... 620 25 14 20.7 1#230 

December ... .... .. ...... .............. ... ... 529 24 l1 17.1 1, 050 

-- ----- ------ ------ ------ ------ Calendar year 1940 ....• .. •.• . • •. • . . •. .•. 13 , 307 2 44 11 36 .4 26,410 

------- ------ ------ ------ ------ January ... . .... .. ... ......... ... ... ........ {51 21 12 15.5 954 

February ... ..... .... . . .. ............. . ..... 516 20 15 16.4 1,020 

llaroh . ··· ······· ···· ······ ············· ···· 640 24 lB 20.6 1,270 

Ap ril ..... . ... . . • . . •..•... .• ..•....•. -. .•.. 1,226 65 26 40.9 2,4ZO 

llay ....... . .•.•. . •. . •. •..•.• •. •. • ..•. . •. .• . 10,1.:59 ;l93 76 327 20,110 

June .......... . ..... . . .. .... . . . ......... • .. 13 ,136 556 303 4Z8 26 ,060 

July .... . .....•. . ..• . .•..• . . • .. .. . . • ..•. .. . 6 , 280 282 87 170 10,470 

August . ......... .. ... ...................... 2 , 059 92 56 66 .4 .,080 

SepWmber .. . . . .. .... . ..... .... ..... .... .. .. 1 , 310 54 36 4Z . 7 2 , 600 

Water year 1940-4.1. .......... .. ..... ..... 36, 744 566 ll 101 72,870 

a lfo gage height r eeordJ discharge Gomputed. on be.s1s or weather r ecorde and records tor Rio Lucero near Arroyo Seeo. , b stage .. disebarge relation a.tteeted by 1oe . 
RIO GRANDE BASIN 213 

Rio Hondo near Valdez, N. Mex. 

Location.- Wa te r-stage recorder and concrete cont r ol, lat. 36°32'20', long. 105°33 '30' 

In St sec. 28, T. 27 N., R. 13 E., a quar ter ot a mile upstream from F'orest servi ce' 

gate , lt miles east or Valdez, and 9 miles upstream from mouth. 

Records available.- August 1934 to September 1941. October 1930 to September 1934 at s l te halt a mlle downstream, below two diversions. 

Extremes.- Maximum discharge during year, 541 second-teet May 13, trom rat i ng curve ex- tended above 290 second-teet by loga rithmi c plot ting ; maximum gage height, 3.08 teet Jan. ll (during lee Jam); minimum dally discharge , 9 second-teet Dec. 16. 

1934-41: Maximum discharge, that ot l'tiy 13, 1941; maximum gage height, 5 .59 teet, 

datum then ln use , Dec. 15, 1936 (lee Jam); minimum dally discharge 3. 0 second-teet 

(estimated) Jan. 21 , 1935. ' 

Remarks.- Records !air except those tor periods of lee street or no gage-height r ecord , ---wn1Ch are poor . No diversions above station. 

Discharge in second-teet water year October 1940 to September lS».U 

08.) Oot . Nov . Dec. Jan. Feb . War . Apr . llay June Jul y Aug . Sept. 

1 16 16 13 13 b11 H 23 53 272 193 72 39 2 15 16 14 12 b11 14 22 70 22S 176 66 3S 3 16 16 13 10 b ll 14 21 8J. 203 176 60 37 4 17 16 13 b11 bll 13 21 80 211 164 56 36 5 17 16 14 b12 b11 H 21 84 223 160 57 35 

6 20 16 l4 *bl2 bl2 13 22 98 246 160 56 35 

7 19 16 l4 b12 12 13 21 122 228 158 55 34 

8 19 16 13 b13 bl2 b12 21 151 262 154 55 35 

9 21 16 H b13 b12 b13 22 199 253 147 54 34 10 21 16 14 b13 l2 b13 26 246 217 139 52 33 

ll 21 bl3 H b13 l2 bl4 24 259 l80 139 51 32 

12 20 b12 l4 13 12 14 24 342 l54 133 51 31 13 19 b12 13 13 •l2 13 27 416 147 126 50 31 14 19 b12 l4 13 12 13 26 416 149 124 48 34 15 l9 b13 b12 13 12 13 26 376 174 150 47 32 

16 l8 15 b9 bl2 13 14 26 331 l85 124 48 31 17 18 15 bl2 b11 13 14 29 313 208 120 54 50 18 l8 15 •15 bl2 13 l4 30 331 250 115 52 29 19 18 15 b13 bl2 13 18 26 313 275 115 49 29 20 18 • 14 b13 b13 13 •19 22 256 289 115 50 50 

21 19 14 b13 13 12 l8 21 256 313 119 49 29 22 19 l4 b13 bl2 12 17 21 266 296 l22 48 33 

23 l8 l4 l4 12 l2 1e 21 266 292 120 47 34 24 •l8 14 13 b12 12 16 21 272 282 ll5 48 31 25 18 14 14 12 12 16 22 289 272 108 47 28 

26 17 l4 b11 b12 13 16 23 350 266 102 46 28 27 18 l4 b12 l2 •b13 14 28 324 237 97 43 27 

28 17 •12 13 a12 b12 16 32 282 231 91 42 28 

29 18 13 13 a12 - 16 3 4 266 203 86 43 41 30 17 13 13 a12 - 17 42 256 195 81 42 37 31 16 - 13 a12 - 18 - 259 - 76 41 - Second- llaximllll Win1aWI lie an Runott in llontb toot-days aore-reet 

Ootobar .. . .. . ........... . ................ ... 564 21 15 18 . 2 1,120 

Nova•ber .... .. ............. . .•... . ........ . 432 16 12 14.4 857 

De~m~r ... . . . ............•..•.. . ... .. . . .. . 407 15 9 13. 1 807 

------- ------ ------ ------ ---- -- Calendar year l&.a . . . . . . . . . . . . . . . . . . . . . . 9,742.9 108 4 26.6 19,340 

------- ------ ------ ------ January ...... . ............• . ... ........ .... 379 13 10 12.2 752 February .. . .. , ...... .. ............ ... ...... 338 13 ll 12 . 1 670 March . ............•.... . .. . ............. .. . 457 19 l2 14:. 7 908 

Apr1 l. ......... . •..• . •.. , ... . •. . · · · • · · · · • · · 746 42 21 24.8 1,480 llay ... ..... . ......•..•.. . ... . •..•..•....... 7,623 416 53 246 15 , 120 June .......... .. •... . .... ... .. .. . . . .. ...... 6 , 941 313 147 231 13 , 770 July ..............•... ... ...... ............ 3,985 193 76 129 7,900 August .............. . ......•.......•.... ··· 1 ,579 72 41 so.9 3,130 

September ............... . .. . .......•.... . . . 981 41 27 32.7 1 ,950 

Wate r year 1940-41 . . . . . . . . . . . . . . . . . . . . . 24,431 416 g 66. 9 48 460 

* Winter d..iaoharge measuraaent made on thle day. a Ho gage-height records discharge oomputed on bade ot weather recorda a.nd records tor Rio Lucero near Arroyo Seoo. b Stage-diecharge r elation a!'fected by ioe. 
214 RIO GRANDE BASIN 

R1 o Hondo at Arroyo Hondo , N. Mex. 

Location .- Water-stage re corder and concrete control, lat. 36°31 ' 55', long. 105°41 ' 05' , In sec . 32, T. 27 N. , R. 12 E. , 1 mlle downstream !rom Arroyo Hondo and l l mlles 

upstream !rom mouth. 

Records available.- Aprll 1910 to August 1915 (at s lte 200 yards above mouth, publlshed as Ri o Rondo near Arroyo Hondo) and January 1932 to September 1941 ln reports or Geological Survey. Aprll 1910 to December 1928 l n reports or State engineer. 

Extremes .- Max1mum discharge durlng year, 508 second-teet May 14 (gage he l ght, 2.91 t eet) , from ratlng curve extended above 260 second-t eet by logarlthmlc plotting; mlnlmum 

dal ly, 6.9 second-teet Apr. 19 . 1932-41: Maxlmum discharge, 2 ,510 second-teet Aug. 23, 1935 (gage helght, 5.45 t ee t, 

datum then ln use) , !rom ratlng curve extended above 170 second-teet by logar!thmlc plotting; m1nlmum dally, 4. 0 second-teet July 13-16, 1934. 

Records !alr. Dl verslons above statlon tor lrrlgatlon . 

Discharge in second-teet water year October 1940to SeptB•ber 1941 

~ Oct . 

l 9.e 2 ~ 

3 9 . 0 

4 9.0 5 9 . 6 

6 9 . 6 7 9. ~ 

8 10 

9 11 10 11 

11 11 12 11 13 11 14 11 

15 12 

16 11 17 11 18 11 19 11 

20 10 

21 e . 5 22 e . e 23 e.e 24 e.e 25 9.6 

26 ~ 

27 10 

28 11 29 11 

30 10 31 10 

Nov. 

9 . e 9 . e 9.e 

10 

1~ 

16 

16 

1e 

20 

22 

1e 

20 

20 

21 

24 

29 

2e 

29 

~4 

~1 

~0 

2e 

27 

27 

2e 

27 

26 

22 

~ 

22 

Dec . 

22 

22 

21 

21 

21 

22 

21 

20 

22 

22 

22 

24 

22 

22 

14 

14 

27 

27 

20 

16 

1e 

1e 

22 

25 

22 

17 

1e 

24 

21 

22 

22 

Wonth 

Jan . 

20 

19 

l~ 

9 . 6 

12 

16 

12 

12 

1~ 

16 

20 

20 

20 

19 

19 

1~ 

12 

11 

14 

1e 

22 

1e 

19 

16 

20 

15 

16 

17 

19 

1e 

1e 

Feb . 

17 

15 

14 

14 

16 

16 

19 

17 

17 

17 

17 

17 

1e 

1e 

19 

22 

20 

22 

22 

20 

20 

1e 

1e 

19 

20 

19 

1e 

1e 

Oc t ober . .... . .. . . . . .. . . . . . . . . .. . . .. . ..... · .. Noveabe r . . . . .. . . . . .. . . .. . .. . • . .•. .. . • . . .... December . .. . . . .. . .. . . . .. . • . . • . . • . .• . •. ..... 

Calendar year 1940 . . . . . ..•. . . . .. . . . ..... 

War . 

20 

20 

20 

19 

20 

1e 

17 

16 

17 

16 

16 

17 

17 

1e 

1e 

17 

17 

1e 

20 

22 

22 

22 

20 

21 

23 

26 

25 

25 

26 

25 

25 

Apr . 

26 

2e 

2e 

2e 

26 

20 

1e 

17 

17 

1e 

20 

20 

~ 

2~ 

21 

15 

e . o 7.3 

6 . 9 

e.o 

.~ 

7.6 

8.3 

e . 3 e.5 

9.0 

12 

14 

1e 

25 

36 

58 

66 

66 

6 4 

eo 

115 

157 

216 

260 

282 

~30 

~91 

42~ 

~7~ 

~1~ 

271 

294 

290 

242 

216 

226 

226 

264 

325 

346 

36e 

286 282 

256 

2~9 

Secondroot-days Maxi aUlD 

~1~ 4 

656 . 4 

651 

6, 4-30.7 

12 

~4 

27 

e5 

June 

267 

2~5 

194 

212 

219 

20~ 

194 200 

200 

1ee 

1e2 

166 

147 

13e 

147 

150 

157 

166 

174 

1e2 

188 

197 

197 

194 

200 

194 

1ee 

188 

le2 

174 

IUnimum 

e.s 

9 . e 

14 

6 .2 

July Aug . Sept. 

16e 

155 

156 

157 

166 

150 

142 

1~ 

122 

116 

124 124 

105 

99 

92 

es 

e~ 

eo 

76 

7~ 

76 

74 

71 

70 

66 

66 

64 

59 

5~ 

50 

43 

lie an 

10 .1 21 . 9 21.0 

17 . 6 

37 

26 

20 

20 

16 

14 

14 

14 

15 

15 

16 

16 

16 

15 

15 

14 

15 

15 

14 

15 

16 

16 

16 

16 

16 

15 

14 

1~ 

14 

15 

14 

15 

16 

16 

15 

15 

14 

13 

14 

16 

15 

14 

15 

15 

16 

16 

15 

16 

16 

16 

1e 

17 

17 

19 

16 

16 

16 

1e 

~ 

40 

~7 

Runorr in acre-teet 

622 1 ,300 1 , 290 

12,760 

January ... . .. .. . . ... . . . ... . . . . . ... . . . . ... . .. 506.6 22 9 . 6 16 . 3 1 , 000 February . . . .... . . . . . ... .. . .... . .. . ... .. .... 506 22 1 4 18 . 1 1 , 000 March .... . .. . . . . .. . . o . . o. . . . .... . .... . . ... 622 26 16 20 . 1 1,230 

Apr1l . . .. . . ... .. . .. . .. . ...... . . . . . . .. . . . . 495 . 2 2e 6 . 9 16 . 5 9e 2 

May . . ... . . .. . . .• . •. . 0 • •• • • • • • •• •• 0. • • • • • • 7,360 423 36 237 14, 600 June . . . ... ... ... . •.. . . .. .• . . o • • • • •• • o • • • • • 5, 623 267 138 187 11 , 150 July ...... . . . ... . ... . . . ... . . . . . . . . . ... . . . . 3,081 188 43 99 .4 6 , 110 August .... . .. . . .. . . . . ..... . . .. . . . .. . . . .. ... 505 37 13 16.3 1 , 000 

September . . .... . .... . . . ... .. . . . . . . . . •. . .... !-__ s2_s_-t---4-0-1---1-3_+ _ _ 1_7_._5 -t--l..:,_o_4_o 

Water year 1940 -41 20 , 84-4 . 6 423 6.9 57.1 41 , 320 
RIO GRANDE BASIN 215 

Rio ?ueblo de Taos near Taos, N. ltlx. 

Location.- Water-stage re cord e r, l at. 36°26', long. 105°30', In sec. 36, T. 26 N., R. 13 

E., 2i miles east or Taos ?ueblo, 4i miles northeast or Taos and 5 miles upstream from 

Rio Lucero. 

Recorda available.- F'ebruary 1940 to September 1941. 

Extremes.- Maximum discharge during yea r, 970 second- t eet May 14 (gage height . 3.9 teet, rrom high-water mark In gage well), rrom rating curve extended above 290 second-teet 

by logarl thmlc plotti ng; minimum dally discharge, 4.5 se cond-teet Jan. 4. 

1940-41: Maximum discharge, that or May 14, 1941; mi nimum dally , 4.4 second-tee t F'eb. 6, 1940 . 

Remarks.- Recorda good except those tor periods or I ce errect and or no gage-height rec- ---oro,-whlch are !air. Diversion above station t or Irrigation. 

Disc harge . in second-teet . water year October 1940 to September 1041 

Da Oct. Nov . Dec . Jan . f'eb. Wa r . Apr . llay June July Aug . Sept. 

1 8.6 7.4 7.8 8.2 6.6 11 33 109 290 109 30 16 2 7 . 8 7.8 7.1 7. 4 6.3 13 31 154 237 100 30 15 3 7.8 7.8 6.6 4.9 • b6.3 12 28 176 237 95 29 H 4 8.2 8 .2 6.8 b4.5 b6.0 9.9 27 185 244 95 28 14 5 8.2 7.1 7 .1 b5.5 b6.6 12 31 206 227 91 28 13 

6 12 7.8 8.2 b6.0 7.8 12 33 230 215 89 28 13 7 9.4 7 .8 7. 4 b6.5 b8.0 11 31 244 209 89 31 13 8 9 . 0 7.8 7.4 b6.5 6.8 6.8 31 230 206 85 28 13 9 9.0 7.8 7.1 b7. 0 b7 . 2 11 32 310 197 81 35 13 10 9.9 7.1 9.0 7 . 8 7 .8 9.9 38 a400 182 79 31 13 

11 9.9 5.2 8.6 7.8 7.4 11 33 a460 173 81 27 12 12 9 . 0 7.1 8.6 7.8 7. 8 12 34 a500 162 77 31 12 13 8.6 5.7 8.6 >?.8 7 . 8 12 47 aeoo 146 72 32 13 14 8.6 6.6 8.6 7.4 7.4 10 42 a700 140 68 29 14 

15 8.2 6.8 5.2 b7.0 8.6 12 44 a660 173 66 28 13 

16 8.2 8.2 4.9 6.6 9.0 11 48 a 600 179 66 27 13 

17 7 .8 8.2 8.2 b6.0 9.0 11 67 514 197 61 28 12 

18 7.8 8.6 9.9 b6.8 9.0 14 57 523 237 83 28 12 

19 7.8 9.0 7.8 7 .4 9.4 17 47 514 227 60 26 12 

20 7.8 8.6 7.4 7. 4 9.4 21 42 438 221 55 25 13 

21 7. 4 8.2 7.8 7.4 9.9 20 38 290 197 57 28 15 

22 7 . 4 8.2 7.8 7.4 9.9 18 33 314 179 52 23 20 

23 7. 4 8.2 •8.8 7. 4 9.9 17 34 307 176 t7 23 18 

24 7. 4 8.6 9.0 7 . 4 09.9 17 31 272 191 44 22 15 

25 7. 4 8.6 9.0 7.8 9.9 18 35 282 179 41 20 1~ 

26 7. 4 8.8 6.6 7.1 9.9 17 37 293 173 40 20 13 

27 8.2 8.2 7.1 b7.0 6.8 18 45 328 182 41 19 12 

28 9.4 6.8 b7. 6 7.8 8.8 18 54 328 164 40 18 13 

29 8.8 7. 4 b8 . 0 7.8 20 68 300 143 35 18 26 

30 9.0 9.0 8 .2 7.4 22 79 293 123 33 18 21 

31 8.2 8.2 7.4 27 304 31 17 

Month Second- Maximum Minieua llean Runoff in 

toot-days acre-teet 

October ......•... . .. . . ... .... . ..•. 261.4 12 7.4 8.43 518 

Noveaber .......... .... ........ ............. 232.4 9 .0 5.2 7.75 481 

Deceaber .......... .. .. .. ... .. ............ 240 .1 9.9 4.9 7.75 478 

------- Calendar year ...... .............. .. 

------- 7 . 03 432 January . . . . . . .... ~ ... ....... .... .. 218.0 8.2 4.5 

February ... . ......... . . . .... . ...•..•. · . . . ·. 227 . 2 9.9 8.0 8 .11 451 

March ..... .. .•.... . .... ... .• . ......... . .... 449.6 27 6.8 14.5 892 

April. ... . ...••.• . .•. . • .• ..• • .•..•... . ..... 1, 218 79 27 40 . 6 2 ,420 

llay .. .. .. . ......•.... . . . •. . •.. . ........ 11 , 044 700 109 356 21,910 

June ..... . .. .. ..... . ... . .. ···· ········· ···· 5.776 290 123 193 11,460 

July ............•..•.... . . . • . .............. 2,042 109 31 65.9 4, 050 

August ............. . .... . . . •... • .• . .•. . .... 803 35 17 25. 9 1,590 

428 25 12 14.3 849 September ........... . . .. . . . . . . . . . . . . 

Water year 1940-41 .... ... ........... .. .. 22,939 . 7 700 4.5 62.8 45,510 

* Winter d.lecbarge meaeW"eD~~ent made on tble d.ay. ror eta.tlon at 

Ta~e~ 0 N~~~~-~~!lr~~o~~ ~=~~r~: ~~:~!:d.T~~e~a:!~ o1' range or stage . recorda R1o Taos at Loa Cord.oTaa. 

b Stage-dieobarge relation arreoted by loe. 
216 RIO GRANDE BASIN 

Rio Pueblo de Taos at Taos, N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 36°25', long. 100°34 ' , !n 

Nl'!t sec . 6, T. 25 N., R. 13 E., 50 rest downstream !rom highway br!dge, hal! a m!le 

upstream !rom Rio Luce ro, and three-quarters or a m!le northwest or Taos. 

Records ava!lable .- June 1936 to September 1941. 

Extremes.- Maximum discharge durtng year occurred May 14, gage he!ght and discharge not determined; m!n!mum dally, 0.2 second-root Oct. 1-16 . 1936--41: Maximum discharge, that or May 14 , 1941 ; m!n!mum dally, 0 .1 second-root Aug. 11, 1939. 

RemarkS .- Records good except those ror periods or no gage-he!ght, wh!ch are ra!r. D!ver-

----srons above and below stat! on !or !rr!gat!on . Records do not include discharge or north channel or R!o Pueblo de Taos, wh! ch d! verts wa ter at po!nt about 1 m! l e upstream. 

Discharge in second-teet water year Octobe r 1940 to September 1941 

D"l Oct . Nov . Dec . J an . Feb . I War . Apr . lley June July Au& . Sept . 

1 0 . 2 1. 2 4. 1 6.4 5.0 5 . 8 22 75 a2~0 72 6.7 g 

2 .2 1.2 ~.g 6.4 4.~ 7.8 23 117 a210 62 6.1 5 

3 , g 1.2 3.~ 4.5 4.~ e.2 21 132 al90 67 5.8 ~.5 

4 . 2 1.2 3.0 3.0 4.~ 7.5 1g 152 a1g5 57 5 . 6 3.5 

5 .2 1.2 ~.0 2.8 4 . 1 8.2 20 168 &200 65 5 . 6 3.g 

6 .2 1.2 ~.1 3 . 5 4 . 3 8 . 6 21 202 a.210 62 5 . 0 3.5 

7 .2 1.2 3.7 ~.9 5.0 8 . 6 22 268 222 48 4.~ 5 

8 .e 1. 2 3.7 4.5 6 . 0 6.7 23 ~12 208 •5 6 . 1 3 . 3 

9 .2 1 . 3 3 . g 4 . 5 5 . 0 6 . 4 2~ ~80 181 44 7.0 0 

10 .2 1·• 4.3 •. e 6 .3 7.0 28 405 152 41 7.5 2. 8 

11 .2 1.4 5.0 5 . 3 5.6 6 . 7 27 426 129 .1 7 . 2 2.8 

12 . 2 1.3 5.6 5.6 5.6 7 . 8 27 470 10g .1 7.5 3.0 

13 .2 1.~ 5.8 6 . 1 5.8 9.3 34 568 100 40 e . g 2 .7 14 .2 1.4 5.8 6.1 5 . 8 8.6 28 a670 102 ~ e . g 2 . 6 15 .2 1.6 5.3 6.1 6.1 8.9 30 a620 log 36 7.2 2 .4 

16 .2 2.4 3 5.6 6.7 8.6 ~1 &560 107 ~· 6.4 2.1 

17 .3 6 3 . 1 s . o 7 . 0 8.6 35 &4:60 lll 32 5 . 6 l,g 

18 .3 4.~ 4.1 4.5 7 . 2 g,7 ~7 •455 127 ~1 s .e 1.6 19 . 3 5.0 s . o 4.8 7.2 12 32 a4.l0 1~ 28 5.6 1.7 

20 . 3 5.8 4.1 5.0 7 . 2 14 26 a340 136 27 5 . 3 1.8 

21 ~ 6 . 1 4.1 5.~ 7 . 2 15 22 a250 129 26 5.6 2.3 22 . 3 6.1 4.1 ~ 7 . 5 14 20 a270 117 26 5.3 s.o 23 ~ I 6.1 4.3 5.6 7.5 ~ 20 &260 111 223 5.3 5.8 24 .4 I 4 . 5 5 . 0 5.0 7.5 1~ 17 a240 117 &20 5.0 5.8 25 . 4 3.5 5 . 8 5 .. ,7 . 5 13 20 &240 123 alB 4.5 5 .3 

26 .4 3 . 0 5 . 6 5.0 7 . 2 13 21 a270 11g al6 4.1 4.8 

27 . 5 1 4 . 8 5.0 7.0 13 26 &300 lOg al5 3.9 5 .0 

28 . 6 4 . 1 5 . 3 5.3 5.~ 13 ~2 a310 103 al5 3 . 7 5.~ 

29 .7 4.1 5.8 5 . 6 - 14 42 a2?0 96 &12 ~.5 g ,7 

30 1 ol 4 . 1 6 . 1 5.6 - 16 54 a255 88 &12 3.3 e .g 

31 1 . 2 - 6.7 5.6 - 17 - a240 - aS 3.5 -

Month Second- Maximum IUnimu. lie an Runor r i n toot-days aore-teet 

October .. . ... . . . . . .. . . .... . .. .... ... ..... .. 10. 6 1.2 0 . 2 O. M 21 November ..... . . . . . ............ ...... ..... .. . 85.0 6 . 1 1.2 2 . 83 16g 

December . . . . ... . ......... ..... ...... ... .... 140.7 6 . 7 3.0 4 . 54 27g 

--- --- - ------ ------ ------ ---- -- Calendar year 1940 . .... ... .. ... .... . ... . 2,270. 0 46 . 2 6.20 4,500 

------- ------ ------ ----- - -- ---- J anuary . .. ..... ... ... . ........... ... .... 157 . 0 6.4 2.8 5.06 ~11 

February .........•..•....•...... ······ · ... . 167 . 5 7.5 4.1 5 . ge 332 Ita rob . ....... ... ... . . .... . •. . . . ........ .. . . 323.0 17 5 . 8 10.4 641 April. ..... . ..... . .... ... . ... .... . ...... ... 803 54 17 26.8 1,590 May .. .... . ................. ........ ........ 10 , 095 670 75 326 20 , 020 June . . ....... . .. . . ..• . . ........ . ... . • .. ... . 4,278 230 88 14~ 8,490 J uly . ...... . .... ....... ... ...... . .. . ....... 1,072 72 8 34.6 2 , 130 August .. .. ... . . . .. . . . . .. . .. .. . .. . 175 . 8 e.g 3.~ 5 . 67 ~49 

September . . . . ... ........... . . . . . . . . . .. ..... 114 . 9 g . 7 1.6 3 . 83 228 

Water year lg40- 4l ....... . ...... ... .. ... 17 , 422 . 5 670 .2 47.7 34 , 560 

a Ho gage - he1gllt record; cUacharge computed on beals or 1 t11acharge meaeurement, and recorda tor stati on near Taos , North Channel ot R1o Pueblo do Taos at Taoa, Acoqula Madre do Taoa at Te.oe, and Rio Taos at Los Cordovaa. 
RIO GRANDE BABIN 21'7 

RIo Taos at Los Cor<lovas, N. Mex. 

Location .- Water-stage recor<ler, lat. 36°23 ' , long. 105°39 ' , ln Nt sec . 23, T. 25 N. , R. 

12 E. , ln Martinez Grant, 50 teet downstream !rom Rlo Ranchos de Taos and Arroyo Seco, halt a mlle northeast or Los Cor<!ovas, and 4 mlles west or Taos. 

Drainage area .- 359 mlles. 

Rscor<ls available .- Aprll 1910 to August 1915 and October 1930 to September 1941 ln reports or Geological Survey. Aprll 1910 to December 1931 ln reports or State engineer. 

Average discha rge .- 30 years (1910-25, 1926-41) , 61 .4 second-teet, (29 years, 58 .1 second- f eet; figure publ!shed ln Wa ter Supply, Paper 898 ln error) . 

Extremes.- Maximum discharge during year, 1, 830 second-teet May 14 (gsge height, 5.81 t ee t ) , !rom rating curve extended above 830 second-teet by logsrlthmlc plotting; mlnl- mum dally , 12 second-teet Oct . l , 23 . 1910-15, 1930-41 : Maximum discharge that or May 14, 1941; mlnlmum dally, 1.4 

second-teet Aug. 5, 10, 1934. 

RemarkS .- Recor<ls ralr except those tor peri ods or no gage height recor<l, Jan. 5-29 , Apr. 

----,:Jf-:T5, which were computed on basls or recor<ls ror Rlo Hondo at Arroyo Ho ndo and Rlo 

Lucero near Arroyo Seco, and are poor. Diversions above stati on tor lrrlgatlon. 

Oiaoharge . in second- teet. wa te r yea r Oc tober 1940 t o September 1941 

Da Oct. Nov . Dec . J an. F'eb . War. Apr . May June Ju ly Aug . Sept . 

1 12 19 27 ~9 29 ~7 ~ ~04 718 296 28 2~ 

2 1~ 19 26 36 27 42 74 4S6 635 26:5 25 24 3 1~ 20 25 27 25 ~7 71 48 6 595 229 24 ~ 

4 1~ 20 24 23 25 ~4 67 526 585 215 21 20 5 1~ 19 26 23 26 45 72 540 0 199 19 20 

6 13 19 26 25 27 H 80 640 640 186 19 20 7 13 19 27 22 28 37 72 800 6 40 171 20 19 

8 13 19 26 23 28 2 71 910 635 145 3~ 20 

9 15 18 25 25 28 ~5 72 1 , 030 590 1~0 H 20 

10 16 19 27 27 29 35 88 1, 090 500 128 45 20 

11 16 21 32 28 28 ~4 92 1, o;o 390 H7 n 20 

12 15 20 37 28 ~4 ~7 105 1, 210 346 155 45 23 

13 15 19 37 29 40 41 164 1,490 00 141 51 24 

14 15 19 34 29 48 42 190 1,710 279 128 50 24 

15 16 19 25 27 60 52 180 1 ,560 500 118 44 24 

16 16 22 20 22 88 55 170 1 , 320 10 104 H 22 

17 16 23 23 20 80 52 188 1,150 07 90 39 20 

18 15 24 28 19 60 46 188 1 ,180 ~4 6 81 45 21 

19 15 39 25 ~ 56 46 164 1, 150 98 106 7 21 

20 H ~~ ~ 25 54 50 1H 940 430 98 32 25 

21 15 2 24 30 60 52 124 772 418 96 32 25 

22 13 28 25 27 49 49 110 800 394 10 4 32 29 

23 12 28 26 25 50 49 122 800 366 95 31 41 24 ~ 30 29 23 48 54 99 772 451 87 31 ~2 

25 ~ ~6 30 27 52 67 97 772 510 80 27 31 

26 ~ 35 25 23 46 85 108 828 466 75 26 30 

27 17 34 24 24 37 78 155 855 435 72 26 29 

28 19 30 27 28 34 69 179 828 404 6~ 25 30 

29 16 28 50 0 - 67 199 800 387 49 25 74 

30 17 29 39 30 - 67 229 772 345 :13 25 55 

31 18 - 42 30 - 72 - 718 - 31 23 -

Se cond- Maximum Y.lnimum lie an Runoff in Month toot-days acre-teet 

October .... .. . 452 19 12 H.6 897 

November . . . . :: : : : : : : :: :: :: : : : : ~: : ::::: :: ... 740 ~9 18 24 . 7 1 , 470 

December . ... . ..... . . .................. ..... 854 42 20 27 . 9 1,710 

-- ---- - ----- - ------ ------ --- --- Calendar year 1940 • ••••••• •e••O••• •••••• 9 , 185o6 162 3 . 9 25.1 - - _!8.!~1~ ------- --- -- -. ------ ------ January . . . , . . . . ..... . .... . ... .... o . .. . . .... 817 ~9 19 26 . 4 1 , 620 

February .. . . . ..... . . ....... o .. • . ... .. . . .. .. 1•, 176 88 25 42 . 0 2,:5~ 

March ..... . . . . . ... . ... o ..... • . .. .. . . •...... 1,64:5 85 32 49 . 8 :5, 060 

April. .. .. .........•..•..........•.. •. ..... ~ 229 67 125 7,4:40 

llay . . . . .... . ..•.• • . .•.•..• .• •..•••. . •..... . 28 ~29 1,710 ~04 9H 66,190 

June ..... . ... . .. . .... . ............. o ..•...... 1~.750 718 279 458 27, 270 

July .. . .. ..... •.. . .•...•.•..•.•• .. . . •..... 3,904 296 ~1 12& 7 , 740 

August . ... .. .. . . ... . ... .. ...........•. . .... 1,009 51 19 32.5 2, 000 

September .. . ... ... ... ••••• ••••• eo•••••••••• 809 74 19 27 . 0 1 , 600 

Water year 1940- 4:1 ·· ····· ··· ········· ··· 67 , 146 1 , 710 12 157 11~ 00 
218 RIO GRANDE BASIN 

Acequ!a Madre at Taos, N. Mex. 

Location.- Water-stage recorder and 4-toot Parshall flume, In swt sec. 9, T. 25 N., R. 13 ;;. , halt a mile northeast or Taos, 1 mile downstream trom head gate , and H miles upstream trom gaging station on Rio Pueblo ~e Taos. 

Records available .- F'ebruary 1940 to September 1941 (monthly discharge) . 

Remarks .- Ditch diverts water rrom let t bank or Rio Pueblo de Taos tor Irrigation . Many 

---otheF ditches divert from Rio Pueblo de Taos, but no records tor them we re obtained . 

Dive rsion, 1.n aero-toot, water year Oc t ober 19 40 to September 19-41 

October. . . . . . . . 104 November....... 118 December . . . . . . . 18 January........ 0 February. ...... 0 ~rob.. .. .. ... ~8 

April.... . 110 

May... .... 397 Juno . . .... 574 

July...... 485 

Auguat.... ~ll 

September . 88 

Water year 1940-·41 ......... . . .. . 2, 24~ 

North channel or Rio Pueblo de Taos at Taos, N. Mex . 

Location.- Water-stage recorder and wooden control, lat. 36°25 ', long . 105°34 ', In SEt sec. o, T. 25 N., R. 13 E. , at highway bridge, 0.1 mile upstream from Rio Lucero, 1 

mile downstream trom point or diversion rrom Rio Pueblo de Taos, and 1 mile northwest ot Taos . Records available.- July 1936 to September 1941 . Extremes.- naximum discharge during year, 48 second-teet May 14 (gage height, 1 .67 reet); 

minimum dally , 0 .2 second-toot Oct . 1-17 . 1936-41 : Maximum discharge, that or May 14 , 1941 ; minimum dally, 0 . 1 second-t oot Aug . 10-16 , 1939 , Sept . 9, 1940 . Rema rks .- Records good except those tor periods or no gage-height record, whi ch are ta!r. 

Discharge , in second-teet , 

Day Oct. Nov . Dec . Jan . Feb . 

l 0.2 0 . 5 o .a 0 . 9 1.0 

2 . 2 . 5 .6 .9 . 9 

3 .2 . 5 . a .9 . 9 

4 . 2 .a . a .8 . 9 

5 .2 . 6 .6 .7 , 9 

6 .2 . 6 . 6 .8 . 9 

7 . 2 .a . 7 .9 .9 

8 .2 .6 .7 .8 . 9 

9 .2 .6 .7 .8 .9 

10 .2 . 6 . 7 . 8 1.0 

11 . 2 .6 . 7 .8 1 . 0 12 .2 . 5 . 7 . 8 1.0 13 .2 . 5 .7 .8 1 . 0 14 .2 . 5 .7 .8 1.1 15 .2 . a .7 .8 1 . 2 

16 . 2 . 7 .7 .8 1.3 17 .2 . 7 .7 .8 1.4 18 .3 . 7 .8 . 7 1.3 19 .3 .8 .8 .7 1.5 20 .3 .7 . 9 .8 l . a 

21 ,3 .7 .9 .8 1.6 22 .3 . 7 .8 . 9 1.6 23 . 4 . 7 .9 .9 1 .6 24 .4 . 7 . 9 .9 1.6 25 .5 . 7 .9 .9 1 .6 

26 .5 .7 .9 .9 1.5 27 . 6 . 7 .9 .9 1.4 

28 .6 . 6 .9 .9 1.3 

29 .6 . 6 .9 1.0 

30 .6 .6 .9 1 . 0 

31 . 6 . 9 1 . 0 

Month 

October ..... . ... . ..... . o •• • • o •••••• 

Noveaber . . . . . . . . . ... . .... . . . o ••• • o • •••• •••• 

December . . . .... . ... . . . ...... o • •••••••• 

Calendar year 1940 .. ... .. . 

January .......... . ....... . .. . February ....... .. .... . .. . o • • ••• • • o • • •• • • 

March . ........•....... o.... . . • ...... 

April . . ..... ... . . ... .. .. .. ... . .. . . .. .. . . May . ..........•.......•.. o ••••••••••• 

June ......... . . . . o . .. . .. . o . .. ... ... ·o . .... . July .......... • . ......• . ......•......... August ...................•.. • ... . o ••••••••• 

September .................... . •. .. ...... ... 

Water year 1040- ·U .......... . 

water year October 1940 to September 1941 

Mar . Apr . May June July Aug . Sept . 

l . a 7 . 0 25 17 5.5 0 . 7 a2 . ti 2 . 2 6 .2 21 15 4.1 .9 2 . 9 1. 9 5 . 3 24 15 3,4 1.3 3 . 2 1 . 8 5 . 0 25 17 3.7 1.4 2.4 2 .2 5.7 27 19 4 . 4 1.5 1.9 

2.1 6.1 28 18 4.1 1.3 1.2 1.9 5.9 30 18 3 . 3 .9 .6 1.6 5.9 29 17 2.1 2.4 1 . 0 1.7 5 . 7 31 16 .7 4 . 2 1.7 1. '1 7 .2 33 13 a . 6 4.6 2 .4 

1.7 6 . 1 33 ll . 4 3.8 2.8 1 . 7 5.3 37 alO . 4 2.9 2.9 1.7 12 43 a9.5 ·' 4 . 2 2.8 1.5 15 46 a9 . 4 3.8 2.1 

1.6 15 .. alO . 4 1.6 2. 4 

1 .6 la 38 all .. 3.5 1.9 1.7 19 3a al2 1.0 5.2 1 . 8 1.7 18 3a alS 1.5 5.3 1 . 9 2.0 17 35 aH 2 . 1 4.4 1.7 3.0 15 29 al3 1 . 8 a5 . 0 1.7 

3 . 8 H 24 all 1.2 a a 2.4 4.1 12 22 alO 1.2 a4 . 5 1 .6 ~.8 12 20 a9.5 1.~ a3 1. 6 3.8 ll 18 alO ~ a2.0 1.6 3 . 9 11 18 all 1 . 0 a2.0 1.2 

4.1 13 21 a9.5 1.1 a2 . 9 3.8 H 21 a9 . 6 a2 . 9 4.6 16 22 8.6 .8 a2 . 5 1 . 5 4.9 19 21 8.o 1.1 a2.6 3 . 3 5 . 0 22 19 7.2 .7 a2 o6 ~.4 

5 . 5 17 .7 a3 

Second- Ma.ximua MiniiiWD lloan Ruoott in root-days acre-teet 

9 . 7 0.6 0 , 2 0 . 31 19 18.7 .8 . 5 .62 37 23.6 .9 .6 . 76 47 

- ------ 590.9 15 .1 1.61 1,170 ------- 26 . 2 1 . 0 .7 .85 52 3~ 8 1 .e . 9 1.21 67 8 4.2 &.6 1 . 5 2 . 72 167 342.4 22 5 . 0 ll.4 679 87Z 46 17 28.2 1,730 371. 3 19 7 . 2 12.4 736 51. 7 5.5 .4 1.67 lOZ 91.4 a . 7 2.95 181 60.2 3.4 . 6 2.01 119 

1,066.2 46 .2 5 . 44 3,04.0 

on a R~~ i:e~~;.~~ord.J diaeharge computed on baaia or range ot etage and recorda tor atationa 
rub GRANDE BASIN 

Carson Reserve! r near Stong, N. Mex. 

LOcation.- Sta!t gage , lat. 36°25', long . 105°50', ln SiNWt sec. 12, T. 25 N., R. 10 E. , on Aquaje de la Petaca, 4! miles northeast or Stong and 4t miles northwest ot Carson, 

Taos County . 

Records available .- January 1940 to September 1941. 

Extremes.- 1940 : Maximum contents observed during period January to September, 7 acre- res t Sept. 14 (gage height, 8 . 7 reet); no storage most ot period . 1940-41: Maximum contents observed during water year, 3,620 acre-teet May 6 (gage height, 38 .5 teet); no storage most or year. 

219 

Remarks .- Reservoir ls termed by earth-till dam, stone-raced; completed ln 1935 . ---nese-rvolr !llled during succeeding spring nmotr, developed leakS and was empty wl thln a tew weeks; has not held water etrectl vely since . Usable capac! ty, 5,684 acre-teet between gage heights 8.0 teet (sill or outlet gate) and 45 teet (crest or spillway). 

Dead storage negligible. Water used tor lrrlgatlon ln Carson lrrlgatlon dl8trlct near Carson. Gage read once weekly . 

Capacity table (gage bolgbt, 1n teet, and contents, 1.n aore-teet) 

(Prepe.red t'rom 1941 survey and ak:eleton capacity table f'Urnished Dy How J1ex1co State engineer) 

8 0 9 10 

10 28 u.s 69 

13 128 15 226 17 355 20 615 

24 1 , 050 29 1,742 45 5,664 

34 2,598 39 3, 754 

!1onthly gage height and contents, January 1940 to September 19·U 

Gage 

Date hel.gbt 

( reet)t 

l1ar . 31, 1941 ...... . Apr. 30 ••••••• • ••••• Hay 31.. .. . . . . . . . .. 24 . :5 JUne :so.......... . .. 8 . 2 J\l1y 31. ••••••.••••• 

AUII· 31. •••••• .• •••• Sept.30 • •... ... ...•• 

The period . ..... .• 

Contents 

(aero- root) 

o.l.06 a2,025 

1,090 2 

0 

0 

0 

t Gage read no certain time ot d.aT. a No gage height; oontente interpolated . 

Gbange 1n 

conte.nta 

during month (acre -teet) 

+106 +1,919 -935 -1, 068 

-2 

0 

0 

0 

~- Reaervoir dry January 1940 to February 1941 except tor tempora.rr storage or 7 acre-teet ln September 1940. 

498588 0- 43 - 15 
220 RIO GRANDE BASIN ' 

RIo Lucero near Arroyo Seco , N. Mex. 

Lccation.- Water-stage recorder and wooden control, lat . 36°30', long. 105°32', In sec. to, T. 26 N., R. 13 E., In Antoine Leroux Grant, 200 teet upstream rrom diversion dam tor Tenorio and Indian ditches, 2 miles southeast or Arroyo Seco, 4i miles north ot Taos Pueblo, and ?i miles northeast or Taos . 

Records available.- April 1910 to December 1916 (published as Rio Lucero near Taos) and 

November 1933 to September 1941 In reports or Geological Survey . January 1911 to December 1915 In reports or State engineer. 

Extremes.- Maximum discharge during year, 300 second-teet May 13 (gage height, 3.12 teet); 

min imum dally, 7 second-teet Nov. 11 , Dec. 16. 

1933-41: Maximum discharge , that or May 13, 1941; minimum dally not determined. 

Remarks.- Records rair. No diversion above station . 

Discharge . in second-teet. water year October 1940 to Septeaber 1941 

Day Oct . Nov. Dec . Jan . Feb . Mar . Apr . llay June J uly Aug . Sept . 

1 H 9.1 8.8 9 . 6 7.7 11 18 S4 198 168 47 20 

2 1S 9.6 b8.6 9.1 b7.6 12 16 49 188 160 48 19 

3 14 9.1 •b8.5 bB 7.7 12 13 48 178 145 H 18 

4 H 9.5 b9 b8.6 •7.7 11 18 45 178 1S9 42 17 

5 16 8.4 9.6 b9 7.7 11 14 60 186 1S8 41 17 

6 17 8.8 9.9 b9 8.1 11 H 61 185 128 40 16 

7 18 8.4 b9.5 b9 8.1 10 1S 77 169 121 40 18 

8 16 e.8 b9 b9 . 5 8.1 b9 H 98 174 118 S9 16 

9 16 a.8 b9 b9.5 8.1 10 18 128 116 116 40 15 

10 17 7 .7 9,9 b10 9:1 b9 18 1S8 144 114 S9 15 

11 16 b7 9.9 b10 8.1 10 17 us 1SS 111 ~7 H 

12 15 8.1 9.5 9.6 8 .4 9.6 17 174 116 109 S9 aU 13 16 •b7.5 9 .1 9 .6 e. a il .1 17 211 114 107 S9 aU 14 15 bB 9.1 <9.1 8.8 9 .1 16 242 12S 102 S7 a16 

16 15 b8.5 b8 9 .1 9 . 1 e.8 16 216 146 96 87 18 

16 H b9 b7 b8.6 9.9 e.e 17 2~ 148 96 S6 17 

17 H b9 b8 bB 9.9 8.8 19 188 168 90 S8 17 

18 1S 8 .1 8 . 8 8.6 9.9 •10 19 209 200 84 S6 16 

19 1S 8 . 1 7 .4 9.1 9 . 9 12 17 206 212 84 S2 16 

20 1~ 8 . 1 b7.5 8 .8 10 14 H 169 226 81 S8 17 

21 12 8 .1 b8 8.4 9 . 9 1S H 188 216 98 ~2 17 

22 12 8.4 9.1 8.4 9 . 9 12 16 180 207 76 ~0 18 

23 11 8.4 <9,1 8.4 10 11 14 192 198 7S 29 19 

24 11 8.8 8 . 8 8.4 11 11 13 188 200 71 27 17 25 11 8.8 8.8 8.4 •11 11 H 188 226 86 26 18 

26 11 8.8 bB 8.4 11 9.9 16 216 2~ 64 24 16 27 11 8.8 b8.6 8.1 b9 9.9 19 216 211 68 2~ 16 

28 9,9 b8 8.8 8.1 b9 11 19 211 198 69 ~ 16 

29 9,9 'b8.6 9.1 8.1 12 22 20S 184 64 28 26 30 10 e.8 9.1 7.7 12 26 202 188 62 22 23 31 9,9 9 . 1 7.7 14 20~ 60 21 

Month Second- MaxitaWI Minimum lie an Runott in root-days acre-teet 

October .. ... . .... . .. . .... . .... . . . . . . . . . . . . . 414.7 17 9.9 1~ .4 823 November .. . . . . . .... .. ... .... ... ... ... .. ...... 264.9 9.6 7 8.50 508 December ...... . . .. .. . .. ... ...... ......... 272.3 9,9 7 8 . 78 640 

Calendar year 19-fO .................... 7,192.0 109 4.4 19.7 14,270 ------- January ... ..... ... . . ... . . .......... . ....... 271.3 10 7 .7 8.75 ~8 

February ......... ... ... ......... .. • . . • .. ... 252 .4 11 7.5 9 . 0 1 601 March .. . . ...•..•... · •.. · ... ···· • · · • · · • · · · · · S32 . 9 14 8.8 10.7 660 April. . .................................... 488 25 1~ 16.2 964 llay . . . .... ..... . ............ . ...... . . . ..... 4, 850 242 ~4 166 9,820 June . . . .. . .................... . .... .. ...... 5,~43 225 114 178 10,600 July . . . ....... ......... ... . ........ . . . ..... 2,995 166 60 98 . 6 5,940 Aucust . .. ......... ··········· ·········· 1, 080 47 21 ~4.2 2,100 September . ...... .. . . . . . . . . . . . . . . 611 26 H 17.0 1 ,010 

Water year 1940-41 . . . . . . . . . . . . . . . . 17,04:5 . 6 242 46.7 ~~ 800 

• W1cter dllcha.rge meaau.ntment made on thh day . a No gage-height recordJ d.hcharge c01:1puted on baeh or weather records, and recorda to.r Rio Pueblo de Taoa near Taoe and Pueblo Creek near Penasco . b Stage-d11eharge relation affected by loe. 
RIO GRANDE BASIN 221 

Rio Lucero below dlverslons, near Arroyo Seco, N. Mex. 

Location .- Water-stage recorder and concrete control, lat. 36°28', long. 105°34', ln sec. 21, T. 26 N., R. 13 E. 80 teet downstream !rom head ot Prado dl tch, 2 miles 

northwest ot Taos Pueblo, 3~ miles south ot Arroyo Seco, and 4 mlles northeast or Taos. 

Records available.- May 1934 to September 1941 . 

Extremes.- Maxlmum discharge durlng year , 273 second-teet May 14 (gage helght, 2.21 teet); no tlow at tlmes. 

1934-41: Maxlmum discharge, that ot May 14, 1941; no flow at tlmes. 

RemarkS.- Records ralr except those below 2 second-teet, whlch are poor. 

Discharge , in second-teet. water year October 1940 to SepteDtber 19U 

D~ Oct . Nov . Dec . Jan . Feb . Mar. Apr . May June July Aug . Sopt . 

1 0 0 . 7 0 . 7 0 . 4 1 . 0 4.9 13 119 61 3 . Q 0 . 4 

2 0 •1.0 . 6 .4 1.0 4.5 26 112 61 3 . 7 .. 3 0 1.a b . 6 •• 4 . 9 4.0 23 108 64 3.4 .3 

4 0 2.1 b . 6 .4 b.6 4 . 0 27 110 67 3.1 . 3 

0 0 2 . 3 b.6 b.4 . 9 •• 2 33 117 6Q 2 . 6 .3 

6 0 2 . 2 b.7 1 b.4 . a 4 . 2 35 117 66 1.Q .3 

7 0 2.3 b . a .4 . 6 5.6 66 117 60 2 . 0 1.4 

a 0 2.6 b.Q .. b.4 6.6 92 114 4Q 2 . 1 2.4 

9 0 2 . 6 l.O .4 b.7 a.o 106 110 42 2.1 1.6 

10 0 2 . 0 1.0 .4 b.& 9 . a 105 96 44 2 . 0 . 2 

11 0 1 . 6 1.1 . 4 b.a 9.4 122 as H 1.9 . 2 

12 0 1 .2 1 .3 . 4 b.6 9.4 164 a6 H 2.1 .1 

13 0 1.1 1.2 .4 .6 9.a Ha a3 42 2 .1 . 1 

14 0 1.1 •1.1 .5 .6 6.0 210 7Q .. 2.1 . 1 

15 . 2 bl.O 1.3 .5 .a .3 196 as H 2.0 .1 

16 .1 b1.0 b.5 .a .9 .3 163 as 4l 1 . a . 1 

17 .1 b1.3 b.~ .6 .a . 3 166 S6 37 l.Q . 1 

la . 1 b1.6 b . 5 .6 •• 9 4.1 17a 94 35 2.0 . 1 

19 .1 bl.4 b.7 .a 1.5 4.0 172 105 ~ 1.6 . 1 

20 0 b1.3 .a .6 2.4 3.0 137 117 32 1.6 .1 

21 0 b1.4 .6 .a 3.6 3.4 129 122 34 1.4 . 1 

22 0 b2.0 .5 .6 4.6 4.0 132 108 32 1.3 .1 

23 0 •b2.5. . 5 . 6 3 . 9 4.0 127 108 32 1.2 . 1 

24 0 2.1 .4 .6 3 . 7 3.7 129 112 32 1 . 1 .1 

25 0 1.6 .4 •·6 3 . 6 4.2 127 124 30 1 . 0 . 1 

26 0 1.2 .4 . 6 3 . 4 5.6 163 127 27 .9 . 1 

27 .4 1 .2 .4 .7 3.7 Q. 1 151 119 27 . 6 .1 

28 1.2 b1 . 7 .4 bl.O 3 . 7 11 HO 119 25 . 6 .1 

29 1.6 1.6 .4 3.7 13 12Q 112 1a . 5 . 1 

30 1-2 .a .4 3.7 8.a 122 76 12 . 5 . 1 

31 .7 .4 •• o llQ 6.< . 4 

Wonth Second- Waxicum IUnimum ! Mean' Runoff 1D 

toot-days acre-feet 

October .. .. ...... . ............ .. ..•........ 0 0 0 0 0 

November ... .. .... .. ........ .• . .... •. .•.. .. . 6.0 1.6 0 .17 9 . 9 

December ....... . .. .............•. . •..•..... oa.9 2.6 .7 1.68 97 

------- Ca.lendar year 1Q40 ......... . •........... 629 . 7 32 0 1.72 1,250 

------- n January . . ... . . ..............•..•..•........ 20.9 1.3 . 4 . 67 

February ... . ........•..•.... . ... .. •... ..• . . u .s 1 . 0 . 4 .62 29 

Maroh ..................•................ . .. 68.7 4 . 6 .4 1.89 116 

April .......•.......•..•..........••.•• .•.. 169 . 2 13 .3 ' 6 . 64 336 

llay .........•.. •. . •.•..•.......•• . • . .•..... 3,639 210 13 117 7,220 

June .. . .. .. .........•....... . . . • .... ...... . 3,169 127 

76 I 106 6, 270 

July ....... .. ..• . . ..•..•...... . •........... 1,264.4 69 6 . 4 oo.6 2,490 

August ....... . ..... . ..............•..•..... 56 . 3 3.9 .4 1.78 110 

September ........ .. ... .. .................... 9 . 7 2.4 .1 . 32 19 

Water year 1940-41 .......... . ........... a,434.6 210 0 23.1 16 740 

~ ~~:f:;d~~:~~~:o r:!!!~~~=~~o:!~! ~~ ~~; day. 
222 RIO GRANDE BASIN 

Principal diversions rrom Rio Lucero , N. Mex. 

Records or discharge are collected ror tlve ditches that divert water rrom the Rlo 

Lucero between gaging stations on that stream near Arroyo Seco and below dl versions, near Arroyo Seco . Each or these dl tches Is equipped wl th a watar-stage recorder t or collect- Ing gage-height records. Water diverted by these ditches Is used to r Irrigation In the 

valley of the Rlo Lucero below the gaging stati on near Arroyo Seco. 

Tenorio ditch diverts from right bank In sec. 10, T. 26 N., R. 13 E. (proJected ), 200 t ee t downstream from gaging station on Rio Lucero near Arroyo Se co . Records available, June 1935 to September 1941. 

Ind i an ditch diverts from let t bank In sec. 10, T. 26 N., R. 13 E. (proJected), 200 teet downstream !rom gaging station on Rio Lucero nea r Arroyo Seco. Records available, 

July 1934 to September 1941. 

Seco di tch diverts !rom right bank In sec. 10, T. 26 N., R. 13 E. (proJ ected), 600 teet downstream !rom gaging station on Rio Lucero near Arroyo Seco. Records available, 

July 1934 to September 1941. 

Juan Manuel ditch diverts !rom right bank In sec. 16, T. 26 N., R. 13 E. (proJected), 1.5 miles upst ream !rom gagi ng station on Rlo Lucero below diversions, near Arroyo Seco. 

Records available, June 1935 to September 1941. 

Prado ditch d iverts !rom r i ght bank In sec . 21 , T. 26 N. , R. 13 E. (pr oJected), 80 teet upstream ! r om gaging station on R.lo Lucero below diversions, near Arroyo Seco. Recoros 

available, May 1934 to September 1941. 

I n add1tlon to the d l tches listed above , Bee Line dl tch diverts !rom r ight bank In sec. 21, T. 26 N. , R. 13 E. (proJected) , 20 t eet upstream !rom gaging station on Rio Lucero 

below ctl versions, near Arroyo Seco . Miscellaneous measurements of !low In this d 1 tch are g l ven 011 page 306. 

Dive rsions, 1n acre-teet, •a.ter year October 1940 to September 1941 

Teno·rto Indian Seoo Juan Manuel Prado llonth ditch d i tch ditch d.ltcb ditch 

October .. ... . ......... . 82 292 158 6 -1 ~8 

November . .. . .• .. •. . . ... a26 b74 c~9 (12 . 0 e42 

December ••.•• .. .... •. . . 

January • ... . ........ • . . February . . . ... . . . . . .•.. Mar 29 t22 282 g16 72 ch ........ . .. . ...... April . . .. . ........ ... .. 47 55 280 91 194 

... ,. .................... ~6 101 93 299 674 

June ••• •.• . . .•• • • .... .. 518 14 693 702 660 

July .. . . . . . . . . . ....... . 192 167 998 472 626 

August .. .. . . .. ... ..... . 258 563 392 190 288 

Septem.Oe r ....... .. . . ... 137 290 193 6.0 238 

a Nov . 1-15; no record Nov. 14 to Feb. 24. 

b Nov. 1-10; no record Nov. 11 to Mar. 15. 

c Nov. 1-12) n o record Nov. 13 to Feb. 24-

d Nov. 1-13; no record Nov . 14 to war. 17-

. Nov. 1-llJ no record Nov. 12 to Peb . 24 . 

r Mar. 16-31. 

g Kar . 18-31. 
RIO GRANDE BASIN 

Embudo Creek at Dixon, N. Mex . 

Location .- Water-stage recorder, lat. 36°12'35', long. 105°54'35", In swt sec. 20, T. 

N. , R. 10 E., at bridge on U.S. Highway 64, 0 .5 mile upstream !rom mouth, thre~­

quarters or a mile east or Embudo, and H miles northwest or Dixon. Prior to Aug. 

water-stage recorder at site three-quarters or a mile upstream at different datum. 

Dra inage area.- 305 square miles. 

Records available.- October 1930 to S&ptember 1941 In reports or Geological Survey. October 1923 to December 1931 In reports or State engineer. 

Average discharge.- 18 years (1923-41), 91.2 second-feet. 

Extremes.- Maximum discharge during year, 3,150 second-teet May 14, from rating curve tended above 320 second-feet by logarithmic plotting ; maximum gage height, 5.55 roe Sept . 20._ present datum; mlnlmum dally discharge, 14 second-feet Sept. 9. 

1930-41: Maximum gage height, 6.95 feet, Site and datum then In us e , July 8, 1 (d1ACh,.~e not determined); mln!mum dally discharge, 1 second-foot July 23, 24, 19 

RemarKS.- Recoros fair . Several alverslor.:> above station for lrngatl on . 

Discharge, in second-teet. •ater year October 1940 to September 1941 

Oa,) Oct. Nov. Deo . Jan . Feb. T Wa 1 Apr llay June July Aug . Se 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

44 

39 

40 

H 

49 

•• 47 

46 

H 

64 

57 

52 

49 

' 49 

47 

47 

H 

46 

49 

46 

43 

41 

40 

38 

36 

33 

40 

52 

47 

47 

.. 

39 

39 

39 

37 

3 4 

37 

34 

32 

37 

41 

29 

30 

27 

20 

27 

32 

33 

3 4 

47 

49 

44 

40 

39 

38 

40 

39 

37 

30 

32 

38 

Wonth 

36 

33 

31 

30 

31 

3 4 

32 

31 

31 

a35 

a40 

a40 

a40 

a 40 

a33 

a25 

34 

44 

31 

26 

24 

24 

50 

38 

37 

24 

26 

38 

32 

32 

34 

~~! 

~~ I 

17 1 31 

28 

28 

, 

~g I 39 

31 

33 I 

, 18 

21 

25 

26 

20 

27 

19 

27 

17 

24 

23 

33 

32 

30 

25 

21 

26 

23 

26 

28 

50 

24 

26 

26 

24 

22 

22 

27 

30 

33 

33 

34 

37 

34 

40 

39 

H 

43 

49 

39 

31 

33 

October. ... .. . ..... . .. . . . . .. .. .. ... . ... 

November . . . . . . . . . . . . . . . . . . • . . . .. •..• . ... 

Oecembe r . . . . . . . . . . . . . . . . . . . . . . . . . • .... 

caiendar year 1940 . . 

January. . . . . . . . . . . . . . . . . . . . • . . . ... . February . .. . .. .. . .. .. . .. .... . . . .... . . .... ~ . March .... .. .. .. , . • •. ...•. ... . .• . ... . ...... 

April .... ... . . .. , ... ~ . . . .. .. . ...... . .•. , Way ........ .. .• . •• .• . . .. •• . •. . •. . • ... . . •.. 

Juno ...... . .. . . ..... . ..... . • .. . . .. . .... .. . J uly ...... ........... . ..... .. .. . .. ... .. ... . August ..... . ... . .. .. .. .... . .... .. ..•.. . • 

September .. ... .. ... .. .... . ..... . ... . . . .. . 

46 

52 

46 

36 

55 

46 

44 

32 

40 

36 

34 

41 

.. 

52 

49 

43 

55 

57 

64 

75 

75 

66 

71 

eo 

83 

78 

73 

86 

86 

110 

110 

Secondroot-days 

1, 418 1, 074 

1 , 015 

25,S88. 6 

138 508 110 724 107 708 104 692 122 608 

130 856 114 1, 0 40 

118 l , 260 114 1 , 6•0 14.6 1, 510 

150 1, 450 

190 1,830 248 2 , 340 236 2 , 590 254 1,990 

260 1,450 281 1,150 

295 1,260 254: 1, 290 200 1,100 

160 1 , 000 138 l , 230 134 1,2'40 126 l , 230 138 1 , 210 

170 1 , 150 248 l, 130 274 1,120 502 1,010 348 938 

- 902 

893 830 

794 812 1 , 0 40 

1,090 

1,090 

1,070 

992 

848 

740 

660 

620 

612 

644 

636 

676 

749 

830 

837 

848 

848 

776 

875 1,040 

875 

767 

692 

644 

532 

Waxlmum Minimum 

64 3S 49 20 44 24 

519 5 . 9 

437 

353 

290 

260 

a240 

a220 

a.210 

&200 

alSO 

11170 

•210 

alSO 

alSO 

alSO 

al4:0 

al~O 

al20 

allO 

alSO 

al20 

al20 

al40 

al20 

allO 

alOO 

al30 

allO 

a90 

a70 

aGO 

a 50 

Wean 

45.7 

35 . 8 32.7 

69.4 

&55 

h57 

a65 

h78 

h76 

h67 

hH7 

h17l 

hl18 

alOO 

b78 

bl82 

259 

208 

184 

184 

165 

190 

141 

110 

105 

105 

84 

76 

62 

50 

42 

36 

33 

40 

35 

Runotr 

aore-re 

2,81 

2 , 1 2,01 

50,:!4 

~~~ :g ~~ ~u i:~~ 1,865 110 32 60 . 2 3,70 5, 609 348 104 107 ll, 13 38, 176 2,590 508 1 , 231 75, 72 24' 380 1 , 090 532 813 48, 36 5,130 437 50 165 10,18 3, 303 269 33 107 6, 55 1 , 643 190 14 54.8 3,26 

1- --- 1---- - --+------+--- --1 - _ w..,a_t_e_r...;y:..•_•_r_ l_9_4o_-_4_1_. ·-·-·-·...,·-· _. ·-·-·-·.,..· _. ·-·-·-·.,..· _ . . _._,___ 85.295 2 , 590 14 234 169,20 

Peak d.hoharse . - May 14: (6 a . m. ) :5 , 150 aeo - rt.; Aug . 12 (5 p. m. ) 817 aoo . -rt.; Sept. 20 (2:~ 

,P. m. ) 1, 2!50 aoc .-rt. a No gage -height record i dlechargo computed on baa is or weather recorda and recorda tor Pecos 

River near Pecoa nnd Rio Santa Cruz at Cundi yo. 

h Computed from ata..tt-gage readlo.ga . 
224 RIO GRANDE BASIN 

Pueblo Creek near Penasco, N. l1ex. 

Location.- Water-stage recorder, lat. 36°11', long . 105°40', In swt sec. 28, T. 23 N., R. 12 E. , 300 teet downstream !rom headgate o! Picuris ditch, 1 m!les east or Picuris Pueblo, 2 m!les northeast o! Penasco , and 3t m!les upstream !rom Rio Santa 

Barbara . 

Records ava!lable .- l1arch 1936 to September 1941. 

Ex remes.- 11ax1mum discharge during year, 1,440 second-teet l1ay 13 (gage height, 2 .87 

feet); minimum dally, 8 second-!set Nov. 11, 13, Dec. 16, Jan. 3. 1936-41: l1axlmum discharge, that or l1ay 13 , 1941; no !low July 10- 15, 1940. 

Remarks .- Records good except those !or per lode or Ice e!!ect or no gage-height record, 

--wJiTC1i are poor. Dive rsions above station !or Irrigation. 

Discharge , in second-teet. water year October 1940 to September 1941 

Day Oct. Nov . Dec . Jan . Feb. War Apr . Way June J uly Au& Sept . 

1 12 H bl4 16 bl4 22 71 266 620 192 ::IS ~2 

2 ll 16 b13 ll b1~ 22 eo ~77 46~ 178 J ::IS 32 

3 10 H b12 bS bl3 20 66 415 ·~9 188 57 ~1 

4 ll 15 b13 b9 b1~ 20 57 409 461 159 46 29 

5 12 12 bH b11 bl4 24 67 409 eo~ 166 u 26 

6 12 H b17 bl~ bl6 21 71 680 664 148 41 21 7 11 15 bl4 b12 16 20 66 717 620 1~~ 61 21 

8 ll 16 bH b12 b13 19 67 808 494 118 66 22 

9 ll 16 bH b1~ l4 2~ 77 860 461 110 102 22 

10 16 16 b18 bl4 1~ 22 92 808 ::182 124 8? 21 

11 18 bS 18 bl4 l4 22 99 882 ~50 

121 1 

a65 20 

12 17 b9 17 H 12 22 127 1,020 ~14 121 122 21 

13 18 bS 15 l4 12 20 152 1 , 210 304 106 al70 22 

14 15 b9 16 b16 16 21 1::18 l #240 ..,. 94 a1:.0 26 10 H blO b12 l4 16 21 146 1,140 ~H 89 allO 27 

16 13 b13 bS bll 18 2l 162 990 304 94 a100 24 

17 12 b15 b12 b9 17 24 166 888 ~24 78 a90 23 

18 12 bH b15 b10 18 28 182 850 355 72 aBO 26 

19 12 16 b12 b12 18 31 1::18 782 ~71 

~~ I 72 26 

20 12 H b10 b13 18 38 112 662 ~76 ~ 24 

21 ll 13 bll b15 20 ~7 97 662 366 100 60 27 

22 ll 13 b12 bl4 19 ~6 87 860 340 85 58 46 

23 10 16 bl4 b15 20 36 83 816 ~04 70 60 ~ 

24 10 18 b15 bl~ 20 38 8~ 808 388 ea 46 36 

25 ll 17 b16 b16 20 32 92 790 433 6l 41 30 

26 ll 18 b10 b12 19 ~6 107 782 ~66 61 38 27 

27 l.~ 16 b12 bH 17 ~6 141 741 ~H 70 ~5 26 

28 15 bl2 b15 b16 20 37 162 893 281 58 ~~ 26 

29 14 bl4 16 16 - 42 180 848 2~ 

~I 33 47 

30 17 b16 16 l4 - 51 207 676 215 ~6 ::IS 31 16 - 1.6 14 - 60 - 640 - 41 33 -

Month Second- Waxial\111 MinimWD Wean Runoff in toot-days acre-teet 

October. ···· ··· ... ...... ···· ·········· ···· 394 17 10 12.7 781 

November . . ..... ··········· ·· ········· ·· ··· 412 18 8 13 . 7 817 

December .. ······ ··········· ··········· ··· ·· 425 18 8 1~.7 84~ 

-- ---- - ------ --- -- -- - --- - - - --- Calendar year 19-tO . . . . . . . . . . ........ .... 11 , 893 . 2 207 0 ~2 5 23,590 

---- -- ------ ----- - - - -- -- ---- January ..... . .. ..... . ... . . .. ....... . ... . . 400 16 8 12 . 9 79~ 

February . . .... ...... . .......... ... . . ... ... : 462 20 12 16.1 897 March .... . ... ............. ...... ..... ...... 892 eo 19 28.8 1 ,770 April .. . . . . ..... . ..•.. ... . ·· ·· ·· ···· ······ · 3,311 207 66 110 8,570 Wa y .. . . . .... . . .....•.... ··· ····· ·· ········· 2~,186 1 , 240 266 748 ol5,990 June ....... . . . . ...... . .. . . .. . ......... ..... 11,442 603 216 ::181 22 , 690 July .......... . .. ... .. ... ·· ·· •·· ··· · · ·· · ·· 134 192 4l 101 6,220 

August ... . .... . . . ..... . . . ... .. .. ..... ... ... 2,025 170 3~ 66.~ 4,020 

September . . . ... . ... ... · ·· · · ·· ··· ·-· · ·· · · · ·· 848 6~ 20 28 . 2 1,680 

Water year 19-t0-41 . . .. .. ... . . .... . .. .. . . 46,919 1 , 240 8 129 93,070 

Peak dlacharso . .- J'1ayl3 {9z30 p. m.) 1 , 440 aoc .-tt.; Juno 24 {10 p. m. ) 689 aoc .-1't . J Aug. 9 {12:30 

p. m.) 610 aoc.-tt . ; A-u,a . 12 {2z30 P•M·} 696 aee ..... tt. • Winter d.lacha.rgo moaau.remont made on this day-_· a Ho gage-height record; dhcharge -"6omputod on baaia ot partly estimated gage ho1ghta , woather 

ro.g o~:,Se~~a~~~~:a r~~~t~~~r;~~:~ ~~c~:xon and Rio Pueblo de Taoa noar Taoa. 
RIO GRANDE BASIN 225 

Picuris ditch near Penasco , N. Mex . 

Location .- Water-stage recorder and 2-root Parshall rlume , In SWt sec . 28, T. 23 N., R. 12 E., 300 teet upstream from rglng station on Pueblo Creek near Penasco , 500 teet downstream rrom head gate, l miles east or Picuris Pueblo, and 2 mi les north- east ot Penasco . 

Records available.- March 1936 to September 1941. 

RemarKs.- Dl tch dl verts v.ater from right bank or Pueblo Creek tor Irrigation on both 

---sr<re8 or creek near the village or Picuris. !"ru1y other ditches also divert from 

Pueblo Creek, but no records tor thsm were obtained . 

Diversion, 1n acre - teet, water year October 1940 to Septea~ber 1941 

October...... 17 November ... .. 4.2 December •• • • , 

January . . ... . Pe brua ry. , .. , aO ~arch .. ...... 0 

a Fob. 24-28. 

April.... .. .. 0 Way........ .. 24 June...... . .. 162 J\l1y.... ... . . ~17 

Auauat..... .. 204 Sept6mber. ... 108 

Note. " No record Dec . 2 to Feb. 23 ; prO'SiDir no diversion during period. . 

Principal diversions from Rlo Grande between Embudo Creek and the Rio Chama, N. Mex. 

Records or discharge are collected tor three ditches that divert water from the Rio 

Grande between the mouth or Embudo creek and the Rio Chama. Each or these dl tches Is 

equipped wlth a water-stage recorder tor collecting gage-height records and with a timber 

artificial control or Parshall rlume . 

Alcalde ditch diverts from lett bank In NEt sec. 19, T. 22 N., R. 9 E (proJected) . Gage Is St mlles downstream rrom head gate . Water IS used tor Irrigation 9n lett bank or Rio Grande on San Juan Grant . Records available, March 1936 to March 1939 (at site 

haH a mile upstream), March 1940 to June 1941 (discontinued) . 

San Rafael ditch diverts rrom right bank In NEt sec . 35, T. 22 N., R. 8 E. Gage Is 200 teet south or north boundaljt or San Juan Grant, H miles downstream rrom head gate . Water Is used ror Irrigation on right bank or Rio Grenda on San Juan Grant. l<ecords 

available, February 1936 to April 1941 (discontinued). 

Ace~ula Ma<lre (known also as Indian ditch) diverts from lett bank In SEt sec. 35, T. 22 . . , R. 8 E!. Gage Is three-quarters or a mlle downstream rrom head gate. Water Is 

used tor Irrigation almost entirely on Indian lands on lett bank or Rlo Grande near vlllage or San· Juan. Records available, March 1936 to September 1941. 

Many other dl tches dl vert from the Rlo Grande between Embudo Creek and the Rlo Chama , but no records tor them were obtained. 

Diveral.ona, 1n acre-teet, ... ater year October 1940 to Soptember 1941 

Month llcaldo ditoh 

October . ..... . ... 246 

Hove.mber •........ 2~0 

December . . . . ... . . 247 

January . ... . .... · 0 

Pebru.ary . . ..... . • 0 

Ma.roh. •••. .. .•.. •• 28 

April ......... . . . 594 ... ,. .. ......... ... 864 

JUrut . . ... ·· · · · · · · 1,260 

JU1J • ...••••....• (b) 

August . ........ ·· September . ...... . 

The porlod .... 3,469 

a Apr. 1 - 9; diacontlnued Apr. 9. 

b D1econt1nued JUly 3. 

san Ra.tael Acequla Madre ditch 

797 260 

~14 es 0 51 

0 0 

0 0 

187 404 

a290 462 

689 

788 

426 

995 

483 

1 , 588 4,644 
RIO GRANDE BASIN 

Rlo Chama a Par k VIew, N. Mex. 

at l on .- Wate r- st age t ecorder , lat. 36°44 ' 15" , long . l06 °34 ' .W" , l n Tier ra Amarilla 

Grant , just below pr es ent mouth or Ri o Brazos , 150 f eet upstream rr om br idge on State Highway 51 a nd hal! a mile nor thwest or Par k Vlew, Rl o Arrl ba County . 

lnage area .- 405 square mi l es . 

ords ava ilable .- November 1912 t o November 1916 , Oct ober 1930 to Sept ember 1941 , In repor ts of Geol ogical SUr vey . November 1912 to September 1916 , August 1924 to Decem- ber 1931 In reports or State engi neer . 

rage discharge .- 16 years (1913- 15 , 1925- 41 ), 396 second-fee t . 

remes .- Maximum discharge dur lng yaar , 6 , 360 s econd- feet May 26 (gage helght , 8 . 12 ?ii"efl, !rom rat l ng curve extended above 4 , 370 second-feet by logar l t hmlc plotting; mlnlmum dally, 20 second- feet Nov. 13- 14 . 193<>-41: tlax lmum d ischarge , 8 , 530 s econd- feet Apr . 16 , 1937; maxlmum gage helgllt , that or May 26 , 1941 : mlnlmum da lly, 3 second-f eet JUly 6 , 7, 1934 . J 

1ar ks.- Recor ds good except those ror June to September, wh i ch are !alr, thos e ror per i ods or lee effect and ror May, whlch a r e poor . Dlversl ons above s t a tion r or l rrl gatlon . 

Discharge in second-teat water year Oc tober 1940 tb Septembe r 194 1 

Oc t . Nov . Dec. Jan . Feb . Mar. Apr . May 

102 36 45 59 b60 75 454 1 , 510 

6 8 40 43 59 b60 82 397 1 , ?40 

62 44 40 •b60 b60 75 403 1 , 730 

60 45 •40 b50 ob60 68 41 5 1 , 740 

75 34 39 b50 b60 86 454 1 , 800 

179 H 41 b50 b65 79 43 4 1 ,,990 

92 41 39 b50 b75, 7 9 426 2 , 310 70 ... 43 bSS b70 oe 01 0 2 , 2 40 

60 45 41 b55 b70 7 5 614 2 , 160 

53 45 46 b55 b70 66 702 1 , 7 50 

46 2 4 45 bSS b70 68 536 1 , 920 

44 b22 45 b55 b70 72 506 2 , 780 43 b20 38 b55 73 6 1 467 3 , 280 40 b 20 3 4 b55 72 77 415 4, 940 39 b25 MO •b55 7 2 73 467 4,850 

37 •b30 b30 b50 6 6 7 2 48 7 4, 9 40 35 34 b50 b45 1 64 ee 501 5,220 35 37 b55 b50 65 10 4 434 5,030 

I 3 4 45 •b60 b50 .se 12 4 367 4 , 220 3 4 48 b60 b55 68 147 30 5 3 , 270 

29 5 2 b65 b55 70 164 350 3 , 180 28 44 b70 b55 68 152 422 3 . 610 28 45 b7 6 b 55 79 179 40 3 3 , 700 

I 27 44 b80 b65 79 18 5 448 4, 220 26 46 .,s b6fi 77 182 606 4 , 490 

I 26 49 b70 b50 7 2 179 675 5, 0 30 

37 46 b75 b50 6 4 179 960 4, 580 

I 

39 1 

3 7 b7 5 b55 6 4 210 1 , 310 3,950 

' 3 7 40 75 b65 - 244 1 , 340 3 , 440 

I 41 49 70 b65 - 278 1 , 430 2 , 940 

38 - 65 b65 - 367 - 2 , 780 

Wonth Second- Wax iraum root~ s 

ober .. . ..... .. . . ...... .... . ... . . ···· · · 1 , 566 179 

·embor . .. . ... . . . ..... . . . . .. . .. .. . ... . . . . . 1 , 170 5 2 

embe r . ... . . .. . . . . . . . ... . . . ... . ... .. . .... 1 , 661 eo -- ----- ---- -- :al endar year 1940 ... .. ... . .. ... .. . .. . . . 67 , 607 1 , 930 

---- --- ----- - 1ua ry . .... . . . . . . . . ... .. ..... .. . . . ... . .. 1 , 693 65 

1ruary .. ···· ·· ··· ······ ···· ········ ··· ... 1 , 91 6 79 

'Ch ..... .... .... ·· · · · · · · ·····•· · · · ·· · ·· .. 3,978 36 7 

·11 ... .. ....... .. ......... ..... ... ... ... 17, 267 1 , 430 

r .. . .. .. ....................... ...... .. .... 101 , 340 5 , 220 

10 .. .. ...... .... .. ..... ........ .. ..... 71 , 7 30 3 , 6 40 

.y ... . ................. .. ......... . . . .. .. 17 , 058 1 ,110 

us t . . .............. ........ ...... ... ... . 4 , 029 216 

Jt cmbo r .. . .... ... ...... ..... ····· ·•···· .. 3,986 502 

Yater yea r 1940 - 4.1 ········ · ··· · · · · · ·· · .. 227 , 394 6 , 220 

• Winte r 41 aeha r ge mea s urement tl8de on th h day . > StAge .. ft h~:t.r o relati on affected by l ee . 

June J u l y Aug . Sepl . 

2 , 54-0 1 , 110 155 74 

2 ,410 9e3 124 7 4 

2 , 620 9 22 119 66 

2 , 680 1 , 0 20 114 6 3 

2 , 510 9 96 106 66 

2 ,490 9 46 119 49 

2 ,890 626 195 46 :5 , 040 77~ 1eO 42 

3 , 300 740 216 46 

2 , 890 660 216 38 

2 , 570 6 50 160 35 

2 , 310 61 3 124 36 

2 , 220 566 119 42 

2 , 200 526 128 266 

2 , 250 502 19S 175 

2 , 240 454 142 114 

2 ,410 438 142 86 

2 ,570 414 200 90 

2 , 57 0 363 13 2 90 

2, 410 4 22 119 200 

2 , 250 422 114 266 

2 , 160 38 3 12 4 170 

2 , 0 40 320 1 10 264 2 , 310 302 98 2 22 2 , 970 296 9 4 150 

2 , 080 278 62 119 l ,840 266 78 102 

1 , 660 232 74 98 1 , 440 216 74 502 1 , 260 1 0 5 9 4 363 

- 180 82 -

Minimum Mean Runorr in ac re- teet 

26 50. 5 3 ,110 

20 39 .0 2 ,320 

30 63 .6 3, 290 

--- --- ------ ----- - 10 239 17 3,800 

------ ------ --- -- - 46 5 4 . 6 :5, , :560 

60 68. 4 3 , 800 

66 128 7 , 890 

~05 576 34, 250 1 , 510 3 , 269 201 ,000 1 , 260 2 , 391 142, 300 180 650 33 ,830 7 4 130 7, 990 

35 13~ 7 ,910 

20 6,23 451,000 
RIO GRANDE BASIN 

E:l Vade Reservoir near Tierra Amarilla, N. Mex . 

Location.- Water-stage recorder (records above sp!llway noor only) and slope gage lat. 36°35'45", long. 106°43'55", In SE:t sec. 4, T. 27 N., R. 2 E., (unsurveyed). lett end or E:l Vade Dam, 2 m!les downstream from old town or E:l Vade and 13 mlles 

southwest or Ti e rra Amar!lla. Datum or gage Is 9 .565 teet above mean sea level 

(datum or 1929) . 

Records available.- January 1935 to September 1941. 

Extremes.- Maximum daily contente during year, 197,700 acre-teet July 4, 13-24 (gage he!ght, 6,901.2 teet); minimum dally, 14,910 acre-teet Feb. 13, 14 (gage height, 6,796.1 r est). 

1935-41: Maximum dally contente, that or July 4, 13-24, 1941 ; minimum dally, 56 acre-rest Jan. 1, 1935. 

Remarks.- Reservoir Is formed by rock-!111 dam, steel raced; storage began In January --rn:35':" Capac ity, 200 , 300 aere-reet between gage height 6,740 .00 reet (bottom or t rack) and 6,902.0 teet (top or splllway gete) . Dead storage unknown. Figures give here represent usable contents. Water Is used tor Irrigation by Middle Rio Gran<le 

Conservancy District. Gage read dally about 7:30a .m. Continuous water-stage r eco reg isters gage height between 6 , 679 .3 teet (!loor or spillway) and 6,907 . 3 teet (tl or gage shelter). Contente given herein a r e those at 7:30 a.m. 

Cooperation.- Starr gage rea<11ngs and capac! ty table furnished by M1<1<1le Rio Grande Co 

servancy Distri ct. 

11onthly gage height and contents, water year October 19<1.0 to September 1941 

O.to 

llept.~o .......... . .. .. Oo t. 31 . .. ........... . Hov. 30 ........•. ... .. 

Deo. :)1 • ••... •• . •.•• •• 

Calendar year 1940 .. 

Jan. 31 ... . . . ...... ..• Pob. 26 .. ... . ....... .. Kar. ~]. .............. . 

Apr. ~o ......... .. ... . Hay 31 .........•. . ..• 

JUne 3() .... •. •••••• . • . 

JUlT ]. .............. . Aug. ~]. ............. .. ~pt ~ .............. . 

Water yea.r 1940-41 .. 

t Gage height at 7::50 &ol!lo 

Contents 

(acre-teet) 

6,81.2 . 9 28 ,150 

6,801.0 18,240 

2,799 . 9 17 ,460 

- --- --- a!lL8~

6,811.0 

6, 798 . 6 6 , 829.1 

6, 876.4 

6,896 . 4 

6 , 900.4 

6,900.6 

6 ,886.3 

6,879.1 

26,410 

16, 54.0 45,420 

1.24,500 

182,:500 

195,100 

196,400 

152,400 

1:5:5,500 

a lfo gago-he1gbt record; contents interpolated. 

Change 1.n content. 

durlng :nonth (aero-teet) 

- 9 ,910 

-790 

- ~L420_ 

t2,270 

+-4,560 

-9,870 

+28 , 880 t79 , 080 +57 ,800 

+12,800 +~00 

43,000 

-18,900 

+105,400 
228 RIO GRANDE BASIN 

Rio Chama near Tierra Amarilla , N.Mex. 

Location.- Water-stage recorder, lat . 36°34', long. 106°43', !n N'.lt sec. 15, T. 27 N., 

R. 2 E!. (proJected survey) , 1.5 m!les downstream from El Vado Dam, 2. 7 m!les upstream trom Rio Nutrias, and 13 m!les southwest ot T!erra Amarilla . 

Re co rds ava!lable .- October 1935 to September 1941 !n reports ot the Geolog! cal Survey. Octobe r 1913 to November 1916 at s! te 1.5 m!les upstream (records ot unregulated tlow), 

published as R!o Chama near El Vado and near Tierra Amarilla, !n reports ot Geolog!csl 

Survey. Octobe r 1913 tQ September 1916 and February 1920 to December 1924 ln reports ot State engineer. 

E!xtremes .- MaJclmum· d!scharge dur!ng year, 6,010 second-t eet May 17 (gage he !ght, 6 .69 

feet); mlnlmum dally , 1.3 second-teet Nov . 26. 

1935-'41 (regulated) ; MaJc!mum discharge , that ot May 17, 194li· maximum gage he!ght , 9 .63 teet May 30, 1937, alta and datum then !n use ; m!n!mum da! y discharge , 1.2 

second-teet Dec . 3 , 1939. During per!o<! ot unregulated re cords, there wes a peak or 4,860 second-teet May 10 ,. 1916, s!te then ln use . 

Remarks .- Records good except those tor periods or lee ettect, whl ch are talr. Flow ----regUJ:ated by El Vado Rese rvoir (capacity, 200,342 acre-teet at gage height 6,902.0 

teet, which ls top ot splllwey gate). Dive rsions above station tor Irrigation . 

Discharge . in second-teet. water year October 1940 to September 1941 

08.) Oc t . Nov . Dec . Jan . Feb . War. Apr . May June 

1 69 97 3 .0 b3.8 512 8 . 2 18 20 :5 , 280 

2 69 18 3 . 0 3.8 980 8 .7 340 24 3 , 280 

3 69 19 3 . 0 3 . 8 631 8 . 7 837 176 3 , 280 

4 69 18 3.0 3 . 8 425 9 . 2 1 , 0:50 724 :5 , 280 

5 69 18 3 . 0 b3 . 6 420 11 676 1,850 :5 , 280 

6 67 18 3 . 0 3.8 420 9 . 8 328 2,:5:50 3 , 700 

7 69 18 3 . 0 3 . 8 415 9.2 328 2 , 820 4 ,400 

8 69 19 3 . 0 b3.6 410 8 .7 332 3,200 4 ,310 

9 69 20 3 . 0 b3 . 8 410 8 . 7 139 3 , 520 4 , 310 

10 69 19 3 . 3 b3 . 8 405 8 . 2 16 3 , 690 4 , 220 

11 69 15 b3.3 b3 . 8 400 8 . 2 16 3,950 3,180 

12 69 5 . 2 b3 .3 b3 . 8 174 8 .7 16 4 , 220 2 , 260 

13 69 5.7 b3 .3 b3 . 8 8 . 2 8 . 7 17 4,600 1 , 600 

14 71 5.7 3 . 3 b3 . 6 8 . 2 9 . 2 17 6,080 1,690 

15 71 5 . 7 3 . 3 • b3 . 8 8 . 7 11 17 6,800 1 , 690 

16 71 128 3 . 3 b3 . 8 8 .7 11 17 6 , 010 1 , 4·40 

17 73 450 b3. 3 b3 .8 8 . 2 11 17 6 , 010 1,070 

18 319 445 3 . 3 b4 . 7 8.7 11 19 5 , 800 777 

19 694 445 3 . 3 b4.7 8.7 11 19 5,800 729 

20 682 190 3.3 b4.7 9 . 8 11 19 6 ,690 953 

21 676 26 3.3 b4.7 11 14 19 4,680 1,230 

22 517 26 b3 . 3 b4.7 9 . 8 11 20 3 , 860 1 , 230 

23 415 26 b3.3 b4.7 11 12 23 3,860 1,150 

24 410 26 3 . 6 4.7 11 12 18 3,960 982 

25 410 18 3 . 8 4 . 7 11 227 19 4,040 1,280 

26 410 ~ 3 .8 4 . 7 8.7 375 19 4,68Q 1,450 

27 405 2 . 6 3.6 4.7 8 . 7 380 25 5 , 590 1 , 500 

28 " 229 3. 0 b3.6 4 . 7 8.7 430 22 5 ,800 1 , 190 

29 126 3 . 0 3.8 4 . 7 - 246 20 6 , 180 887 

30 126 3. 0 b3.8 4 . 7 - 19 20 4,590 887 

31 126 - b3.8 35 - 18 - 4 , 040 -

Month Second- Waximum Y1n1mum too t-da.ya 

October ..... , . . . , ..... . . . . . .. ... ... .. ... ... 8 , 726 694 87 

Novembe r . ..... . ... . . . ... . . . . ···· ··· ·· ······ 2 , 094 .4 450 1 .3 

Decembe r . . . ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103. 0 3 . 8 3 .0 

-- ----- --- - -- ------ Calendar year 1940 . . . . ....... . . . ..... . . . 97,397 . 1 1 ,250 1 . 3 

------ - ------ ------ January .............. . . . .. . . •... .. ..... . . . . 169.9 35 3 .6 

February . ... . .. .... . . . ... . • . ...•. . ... . . . . .. 6, 761.1 980 8.2 March . .. . ........ •. , •.. . ....•..•.. . .. .. . . .. 1,936.2 430 8.2 April. ...... . ...... . , .... .. . . . .. . . . ....... . 4,42:5 1,030 1 8 May .. ....... • . .... ..•.. . ... . •..... . .•. . .... 121,384 6,010 20 

June .. . ........ . . •.. .......... .. ... . ..... . . 64,516 4,400 729 

J uly . .. ... . . . ....•..•.......•. .. . . . . • .... ... 17,486 974 420 

August . ....... ....... .... . .... ..... .... .... 26 16~ 1,450 282 

September . . . . ....... . .. . .. .... . . .. ·· • · ····· 14,921 817 128 

Water year 194:()..'"'1 ··· ····· ·· · · · · · · ······ 265 , 681 .6 6, 010 1.3 

• Winter d1acharge meaaurement made on thle d.&J • b Stage-cUacb&rge relation attected by lee. 

July .lug . Sept. 

887 430 698 

601 681 686 

500 958 666 

974 1 , 130 674 

966 1 , 450 680 

968 1 , 390 685 852 1 ,460 405 

782 1 , 220 395 782 1,0'70 4U 602 1 , 0?0 395 

516 1 , 030 547 516 1 , 030 817 516 1 , 070 817 516 1 , 0'70 817 

516 1 ,070 817 

510 1 , 070 810 516 1,070 810 456 1 , 070 810 420 1 , 030 810 

420 1 , 070 518 

420 852 305 425 310 305 425 310 243 425 300 128 

425 296 128 

430 292 128 426 292 128 425 282 128 425 392 138 426 716 128 430 6g2 - Mean Runott in aore-teet 

217 13,MO 89.8 4,150 3.32 204 

--- --- -- ---- 286 103 ,200 

------ ---- -- 5 .16 317 

205 11 , 410 62.4 3,840 U7 8,770 

3,916 240 ,800 2,160 128,000 564 34,680 844 61 ,890 

497 29,600 

728 62'7,000 
RIO GRANllE BASIN 229 

Rl o Chama near Cham! ta, Max. 

Location ~revised).- Water-stage recorder, lat. 36°04'20", long. 106°06 '40 ", In NEt sec. 9 

T. 21., R. 8 E;., 180 teet downstream !rom Espanola-Ojo Caliente highway bridge, 21 ' miles upstream !rom mouth , and 21 miles northwest ot Cham! ta. 

Records available.- October 1912 to June 1915 and Oc t ober 1930 to September 1941 In 

reports or Geological Survey . Oc tober 1912 to De cember 193? In reports or State 

eoglneer. 

Average discharge.- 27 years (1913-17, 1918-41}, ?04 second-teet. 

Extremes.- Maximum discharge during year, 9 , 910 second-teet May 14; maximum gage height, 8.1 feet May 16; minimum dal l y discharge , 40 second-teet Nov. 8, 9. 1930-41 : Maximum discharge, that or May 14, 1941; maximum gage height, that or May 16, 1941 ; no rlow at times. 

Remarks.- Records talr except those ror peri ods or tee ertect or no gage-height record 

----wnrcn are J?OOr. Diversions above station ror Irrigation. now regulated by El Vado 

Res ervoir (see p. 227). 

Diaoharge , in second-t eet, water year October 1940 t o September 194 

Da~ 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

:50 

31 

Oot. 

~50 

172 

109 

96 

104 

118 

140 

146 

146 

167 

140 

122 

127 

122 

140 

136 

146 

uo 

268 

718 

664 

691 

622 

4~6 

«:5 

460 

460 

474 

~~1 

196 

196 

Nov . 

180 

195 

145 

8 7 

75 

58 

42 

40 

40 

" 

48 

50 

50 

o60 

o60 

a 50 o200 

429 

546 

602 

401 

150 

13~ 

133 

141 

113 

106 

84 

70 

60 

Dec . 

60 

62 

60 

68 

58 

66 

66 

60 

•60 

62 

62 

70 

78 

7S 

68 

•b66 

b66 

b66 

68 

68 

68 

65 

62 

70 

84 

72 

66 

68 

78 

o87 

99 

Wonth 

Jan. 

11~ 

99 

84 

b65 

b65 

• b60 

b60 

b70 

b75 

bBO 

b85 

81 

o81 

90 

87 

b65 

b60 

b60 

b65 

b65 

b70 

b70 

b70 

b75 

b75 

bBO 

bBO 

bBO 

bBO 

bBO 

bBO 

Feb. 

bBO 

~00 

• 1 , 200 

666 

610 

610 

~7 

694 

646 

498 

498 

474 

687 

160 

9~ 

102 

160 

160 217 

2:54 

212 

~62 

~80 

317 

352 

292 

260 

206 

October ..... , ..... ....... . ..•.. . ........ November ...... . ... . . . ....•..••.•. .. .. . . . ... 

Oeoember ... . .. . . ... ...... . . . ..• .. •..•. .•.. 

Calendar year 1940 .... o ••• • •• • • • •• •• ••• 

War . Apr . 

180 

186 

190 

190 

190 

280 

256 

266 

195 

170 

170 

155 

166 

217 

222 

280 

687 

580 

450 

506 

578 

664 

594 910 

920 

920 

799 

853 

890 

871 

808 

Secondroot-days 

8 , 445 

4 , 371 

2,065 

127 , 068 

1 ,. 060 

836 

980 1 , 510 1,840 

1 , :520 1 , 010 1 , 080 1 , 140 1 , 360 

970 

871 1,480 

1 , 110 1 , 010 

1 , 020 1 , 230 1,190 

890 

67~ 

619 

662 

736 

990 

900 

1 , 140 1 , 420 

1 , 960 2 , 140 

2,280 

2 , 680 

960 

630 

3 , 950 4 , 280 

5 , 510 6 , 470 

6,870 

7, 280 7, 280 

7 , 280 7 , 910 

8 , 560 8 , 660 7 , 990 

8 , 760 8 , 640 

8 , 720 8 , 050 

~30 

&,790 

~,730 

4, 880 6 , 390 6 , 070 

6 , 070 6 , 970 7, 710 7,620 

6 , 250 

5 , 730 

Waxicum 

718 

602 

99 

1 , 320 

June 

4,720 

4,240 

4,240 

4, 400 4,720 

4,880 

5 , 390 6 , 250 6 , 430 

6,730 

6 , 390 

3 , 840 3 , 170 2 , 680 2 , 680 

2 , 5 40 2 , 210 

1,770 

1 , 440 

~90 

1,650 

1,710 

1, 710 

1 '770 

1,830 

1,890 1 , 770 1 , ?10 1 , 290 1 , 140 

Y.inimum 

96 

40 

50 

30 

July 

1,140 

1,130 

906 

888 

1 , 210 

1,130 

1 , 020 

906 

942 

888 

834 

897 

735 

642 

602 

530 

594 

610 

708 

666 

568 

522 

466 

556 

464 

394 

498 

474 

.. ~ 

458 

458 

Mean 

5U 

482 

753 

9~~ 

1,180 

1 , 480 1 , 480 1 , 680 1,380 

1 , 160 

1 , 070 1 , 050 1 , 180 1 , 140 

1,160 

1 , 150 1 , 110 1 , 060 1 , 040 1 , 030 

1 , 110 

804 

268 

268 

273 

308 

287 

259 

259 

374 

810 

Sepl . 

671 

689 

626 

590 

599 

599 

618 

350 

374 

430 

542 

~4 

1 , 020 1 , 000 

881 

892 

840 

9H 

8 40 860 

707 

829 

453 

252 

150 

174 

204 252 

~ 

Runo tt in acre-tee t 

272 

146 

66 . 3 

16 ,750 8 , 670 4 , 080 

347 252, 000 

January . .. . .. .. ........ . . 0 •• 0 •• 0 • •• • • 0... . . 2 , 350 113 60 76 . 8 4 , 660 

~~~~~ ::::::::: :::::: :: ::: ::~::::::: : ig :~~ l,:~g 1:~ ~~~ :~g 

~~:: ::::::::::::::::::::: :::::::::: : 2~ :~g ~:;:g ::~ ~:~~: .6~ ~~ 

~~r ::: ::: ::::::::::::::: :::: :: ::::::::: ~t~g t~~g ~U ll~ 1:: !~ 

~~~t:!bt~ : : : :: :: :: : :::: . :: :: ~: ::: :::::::: ~-...:i:.:~:.:;.:g2:.~+--=~:.:.:.~:.~g=+ __ _.:.1.:.50=+--6-1~1-+--5~6:-'-:-3-:-50:- "ater year 1940-U . . . . . . . . . . . . . . . . . . . . . 441 , 599 8 , 760 40 1,210 875, 900 

Peak d1aoharse . - Kay 14 (5 a . m. ) 9 , 910 sec.-ft. ; June 8 (11 p.m . ) 8 , 280 see . -t't., June 24: (11 P m 

3 , 240 sec . -ft. J July 24 (12 p.m. ) 2 , 080 see. -rt.; Sept. 22 (10 p. m. ) 6, 780 aee.-rt. 

• Winter dlecharge measurement made on tbla day. a No gage-height record; dhcha.rge computed on baa1a or weather recorda and recorda for station 

below Xl Vado Dam near Tierra Amarilla. b Stsge-d!aoharge relat1on affected by lee . 
RIO ORANDE BASIN 

Wi llow Creek nea r Pa rk VI ew, N. Mex. 

ttl on.- Wate r-stage recorder, l a t . 36°40 ' 20 ', l ong. 106°42 ' 10', In Tierra Amarilla ,lrant, 400 reet upstream rr om Willow Creek dam s ite , 0 . 3 mile downstream rrom Horse 

j.ake Creek , and 7 miles southwest or Pa rk VI ew, Ri o Arriba Coun ty. 

1

>rds ava:lable. - May 1936 t o September 1941. 

~mes .- Maximum d ischarge du ring , 1 , 980 second- t ee t Apr. 9 (gage height, 6 .40 , 'ee"tT;" from rating curve extended above 580 second-fee t by l oga rl thm1c plotting; , 11n1mum dally reco rded , 0 .3 second-root Nov. 13, 14 . j 1936-41 : Maximum d ischarge , 3,100 second- t ee t April 10, 1947 (gage he ight, 7 .59 ·eet) ; no flow at t imes. 

'•rks .- Records f a ir except t hose tor psrl ods or t ee errec t s nd of pa rtial or no gage - ieigl'it record , which a re poo r . Several di versi ons above sta ti on r or Irri ga t i on . 

Discharge. in second-teet. water year October 1940 to September 194J. 

Oc l . Nov . Dec . Jan. Feb . War . Apr. May June July Aug. Sepl. 

10 1. 3 57 708 a680 22 e . o 1 .7 3 .7 

7.3 1 . 0 6 4 51 7 a560 23 7 .7 1 . 3 .~ 

6 .9 .9 61 540 591 19 7.0 1.2 2.3 7 .3 . 9 64 675 780 28 6.3 1.1 1 .9 

6.9 . e •5. 6 93 728 51 7 29 6 .0 1.1 1 .4 

10 . 7 71 708 510 36 6 . 0 1. 3 1 .3 6 .9 .6 64 709 449 38 6. 3 27 1.3 3 .8 .6 48 773 374 770 11 10 1.2 2 . 8 . 6 48 856 310 192 7 . 7 37 1.2 2 .1 .6 42 780 255 180 6 . 3 7.7 1.1 

1.8 .5 38 662 215 102 9.8 4. 6 1.1 1.4 .5 42 662 18 2 110 1 7 4.4 J.1 1. 4 .3 50 708 160 5 4 7.7 6.6 1. 8 1.3 .3 b30 51 522 124 43 5.3 3 . 1 28 1. 3 . e b35 93 596 99 38 6 . 3 12 16 

1.2 •• 9 b40 115 542 81 37 4. 4 e . o 7.7 

' . ) b40 130 612 7l 30 3 .7 16 12 1.1 b45 163 418 64 27 3 . 5 12 7 .0 .9 b50 220 302 55 23 3 . 5 4.4 5.3 . 9 b50 • 242 a 2 60 44 19 8 .o 2.8 eo b .s 

. 9 b55 264 a 240 44 17 7 .3 8 .4 21 .9 b 55 292 a260 79 16 12 3.9 108 .e b60 386 a290 48 16 19 2 .2 81 . e b60 426 ·~•o 57 92 9.4 1 . 8 12 . 7 b70 320 a400 56 77 11 1.4 6 .0 

.6 78 222 a480 47 26 4. 9 1.2 4 . 2 

1.4 61 267 a540 33 18 3.7 1.0 3.1 3 . 2 64 366 a620 63 16 3.3 .6 3.3 2.3 429 a720 46 13 2.4 4.8 175 1.7 652 a770 32 10 2 .0 17 42 1.6 850 24 1.9 5.6 

Month Second- llaxbua IUni.tlu.. Moan Runorr 1n toot.-days ac re-teet 

1ber .. 9 1.2 ·10 0.6 2.94 181 mber l-23 .. ... ..... .. ..... .. ... 16.9 1.3 .3 .73 34 mber . . . . . . . . 

-- -- -- - l enda r year ... .. .. .. . . .. . . .. .. . .. --- --- - ·ary . ... . . .. . . ...... . · ·· · · · · · · ·· uary 14-28. ········· ······· ··· ········ 783 78 30 52.2 1,5&0 ' h ...... .. .. .. . .. ... ..... . ... .. .. ..... .. 6,210 850 38 200 12,320 l. ............ ... ... ... .. ... .. .... 11!, 858 856 240 562 33,440 

1:::: ::: :::: ::: :::: :: :::::::: :: :: :: ::: :: 6 , 650 780 24 216 13,190 2 , 120 770 10 70.7 4,200 ..... ...... ...... . . . .. . ... . . .. . . 218 . 4 19 1.9 7 .05 433 1St . .. . . . .. .. . . . • .. • . .. . , . . .. . , . . . . . .... 211 . 2 37 .6 6.81 419 \ember . . ...... . .•.. ·•· · · · · · · · ···· 633.8 175 1.1 21.1 1 , 260 

·ter year ... ..... ... .. ' g (8 p.a.) 1,980 8 (2 p . m. ) (11 p.m. ) 1lk dhcbarse.- Apr. sec. -rt.; June 1,600 aec.-rt.; Sept. 22 1ee . -ft. 

if1nt or dlacharae measurement made on th1a day. 

1lo gago-he1ght record; d.laob.$rge computed onbo.sie or weather recorda , recorded range or stage, ·ecorda for Bl R1to Cre ek near B1 Rite. tltage-dhcbarge rolat1 on affected by l ee. 
r 

RIO GRANDE: BASIN 231 

El Rlto Creek nea r E:l Rlto, N. Mex. 

Location.- Water-stage recorder, lat . 36°23', long. 106°13 ' , In sec . 19, T. 2S N., R. 7 

E. , th ree-quarters or a mile upstream !rom boundary or Carson Nati onal Forest and 3 mi les northwest or El Rlto. 

Records ava i lable .- May 1931 to September 1941. 

Extremes .- Maximum discharge during year, 1 , 170 second-t eet May 13 (gage height, 5.90 t ee t), !rom rating curve ex ended above 570 second-tee t by logarithmic plott ing; mini- mum dally recorded , 0 .8 second-toot Nov . 12, 13 . 1931-41 : Maximum discharge not determined; min i mum dally recorded, 0 .3 second-toot 

June 21-23, 1934. 

Rema rks .- Records !air except those !or pe ri ods or Ice e!!ect , whi ch are poor. One dlver-

----si1iilabove station !or Irrigation. 

Discharge, in second-teet , water year October 1940 to September 1941 

Day Oct. Nov . 

1 1.5 1 . 5 2 1.2 1 . 5 3 1.2 1.5 4 1.2 1.7 

5 1.3 1. 4 

6 2 . 3 1 . 5 

7 1.6 1.4 8 1.3 1.4 9 1.2 1.4 10 1 . 2 1 . 5 

Dec . Jan . 

2 . 2 b2 . 5 • 2 .0 

2.2 

2 . 3 2 . 2 

1.9 

1.9 • b2 . 8 1.8 

1.8 

2 . 1 

ll 

12 

13 

14 

15 

l.O 

l.O 

l.O 

1.0 

l.O 

.9 2 . 0 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

l.O 

1.0 

•1 .. 0 l.O 

1. 0 

1.1 

1.1 

1.1 

1.1 

1.1 

1.2 

1.6 2 . 3 1.8 

1.8 

1.7 

. 8 2 . 1 b . 8 1.8 b . 9 

bl.1 ~ bl.5 

bl.3 

1 . 6 

1.7 

2 . 0 *1 . 5 (•) 

2 . 7 2 .1 

2.0 

2 . 2 b3 2 . 3 

2 . 3 

1.8 

2 . 1 2 . 4 

2 . 3 

Wontb 

F'eb . 

b4 . 5 

4.1 

-4.3 

4.1 

4 . 1 4 . 3 

4 .3 

3 . 5 5.1 

5 . 1 4. 7 

4 . 5 4.5 

6.0 

October .. .. . . . .... . ....... . . ..... . ... . . ... . November . . . . ..... .. . . . . • . . .. . . .•. . • . .•. .. .. 

December . .. . . . ..... , . •.•. . •. . . ... .. . 

Calendar year 

War . Apr . Yay 

5.5 

5.5 

4 . 1 3.7 

5.5 

3.9 

4 . 5 3 . 4 

4.3 

3 . 9 

4 . 9 

5 . 1 4 . 1 6.0 

6 . 5 

6 .5 

5 . 8 

6.8 

9 . 8 13 

16 

15 

16 

17 

H 

13 

ll 

l4 

16 

22 

35 

Secondtoot-days 

39 . 9 

49 .6 75.8 

42 

35 

33 

39 

47 

4B 

52 

50 

77 

84 

50 

88 

94 

75 

84 

94 

104 

82 

58 

46 

H 

43 

46 

53 

76 

102 

1 47 

158 

172 

189 

242 

258 

258 

235 

272 

38 7 464 

557 

608 

569 

536 

632 

746 

589 

450 

424 

437 

412 

325 

214 

198 

286 264 

306 

304 

324 

273 

250 

210 

186 

162 

Wa.x imua 

2 . 3 2 .7 

June 

136 

132 

138 

129 

130 

120 

115 

187 

124 

124 

104 

91 

79 

70 

67 

60 

52 

46 

38 

33 

31 

31 

31 

36 

37 

25 

22 

19 

17 

l4 

Minimum 

1 . 0 

.a 

July 

14 

13 

12 

12 

12 

12 

ll 

10 

11 

10 

12 

12 

9 . 4 9 . 4 9 . 1 

10 

8.0 

7 . 1 8 .0 

12 

8 . 3 7.4 

7 . 1 7 . 7 

8 .0 

6 . 6 5 . 9 5 . 4 5 . 2 

5 . 0 4. 1 

Aug. Sept . 

4 . 3 3 . 0 4.1 3 . 0 4 . 5 2 . 8 4 . 5 2 .4 4.8 2 . 4 

6 . 9 2 . 4 8 . 0 2 . 3 12 2 . 3 

ll 2 . 5 6 . 9 2 . 4 

6.9 

15 

10 

5 . 3 5 . 0 

4 . 5 4 . 1 

4 . 1 3 . 5 3 . 3 

6 . 4 4.8 3.9 

3 . 5 3 . 3 

3 . 1 

3.0 

3 . 1 3 . 3 3.6 

3 . 3 

2 .4 

2 .4 

2 . 7 

3 . 9 4.1 

3 . 6 3 . 0 

3 . 0 3.0 

3 . 6 

5.6 

4 . 8 8 . 8 

5 . 6 4 . 1 

3 . 6 

3 . 5 4.1 32 

20 

Yeao Runott in 

acre-teet 

1.29 1.65 

2 . 46 

79 

98 

150 

~~uary ..... .. .......... . ..... . •.. • . .. . . . . . 126 . 4 6 . 0 3 . 5 4. 61 251 e ruary . . . ... .... .... . . .. .. . .. . . . . . . . . . . . . 1 6 35 .4 9 . 74 599 March . . . . .. .. . .. . . • . . . ... . • . .... . . .. . . . . • . . 30 • ~~ 7?. 7 4,630 April ........ ... .. • ... ..... .. .. . ... . . ... •.. 2 , 332 169 162 367 22 , 570 Yay . ..• . • . • . •.• . • . • .•. • • • . • . .. .... . . . • .. • .. 11 , 378 746 14 74 . 6 4,,40 

J une • . . .. .. . . • .• •. • . . • . •• . •. . •.... .. . . . ... . 2 , 238 1~~ 4 . 1 9 .18 555 

i~ i~;.t :: ::: ::: ::: ::::: ::::: :: :::: ··· ti ~52 3

2 •• o

3 t~~ ~ September . . . . . . . . . . • ..•. . , . . . . . .. •. . . . . ~-_:1.:.9:..:..:3+-- -+----t-----·-t" -:~ 

Wat e r year 

• Winter diechugo meaeurement made on thh d.&,. . b Stage-d1eoh&rge relation a.fte ctod bJ loo . 
232 RIO GRANDE BASI N 

Rio Ojo Caliente at La Madera , N.Mex . 

Loca tion .- Wa t e r-stage recorder, lat. 36°20 ' 45", long . 106°02'50", 1n NEt sec. 1 , T. 24 N. , R. 8 E., 2.5 mlles south or La Madera , 3 mlles downstream f rom confluence or Ri o Vallecitos and Rlo Tueas, and 4 miles north or OJo Caliente. 

Records ava ilabl e. - April 1932 to Sept embe r 1941. 

Extremes .- Maximum d ischarge during year, 2, 380 second- t ee t May 13, max imum gage he i ght, 

4.5'1 t ee t May 1 ; mi nimum dally d is charge , 5 eecond-teet Aug. 1, 2 . 1932-41 : Maximum discharge, 2 , 570 second-teet Apr . 16, 1937, rrom ra ting cu rve extended above 1, 100 second-t eet by loga r ithmic plot ting ; maximum gage height , 7 .60 tee t {site and da tum t hen i n use) J uly 15, 1933; minimum da lly discharge, 1 second-too t at times . 

Rema rks.- Re cords poor. Oivera lons above stati on t or irriga tion. 

Diaoharge , in second-teet. water year Oc tober 19<&0 to Septeaber 1941 

Oa. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Ool. 

16 

20 

17 

17 

17 

2~ 

2~ 

lQ 

16 

14 

1~ 

1~ 

1~ 

12 

1~ 

12 

12 

12 

12 

12 

12 

12 

12 

12 

11 

12 

12 

16 

16 

16 

16 

Nov . 

15 

14 

lS 

H 

14 

13 

14 

14 

H 

14 

15 

10 

g 

9 

10 

12 

lS 

15 

so 

21 

24 

20 

24 

25 

25 

26 

24 

17 

17 

23 

Deo . 

21 

19 

lQ 

18 

19 

20 

20 

20 

20 

29 

26 

28 

25 

17 

20 

26 

29 

0 

28 

28 

29 

29 

~2 

57 

54 

29 

28 

~4 

~4 

36 

~ 

Month 

Jan . 

58 

51 

2~ 

21 

25 

29 

25 

25 

22 

22 

24 

26 

25 

25 

25 

22 

21 

21 

22 

24 

26 

~ 

26 

23 

26 

22 

24 

24 

28 

0 

32 

Fob. 

28 

26 

26 

24 

24 

29 

34 

51 

26 

~2 

29 

36 

~2 

35 

42 

69 

61 

66 

70 

85 

100 

100 

112 

97 

112 

100 

75 

66 

October . .. . . . .....................• . ....... November . . ... . .... .. ......•.......• . . . ... . 

December . . ....... . . . ... . ..•.. o • • •• o ••••••• • 

Calendar year 1940 .....•... . ... o • ••••••• 

Ma r . Apr . 

7Q 

9 4 

7Q 

61 

91 

68 

75 

69 

6~ 

67 

60 

46 

48 

46 

66 

65 112 

144 

172 

190 

240 

190 

246 

~86 

sse 

257 

195 

240 

272 

356 

SQ8 

Secondtoot-days 

~0 

506 

818 

•~o 

~~8 

5~2 

•o• 468 

442 

436 

508 

689 

603 

462 

624 

792 

59 6 666 

729 

785 652 

442 

332 

SH 

SOB 

356 

SH 

456 

645 

792 

888 

8 95 

948 

ll&y 

1,210 

1,690 

,~60 

1,240 

1,090 

1 , 360 1,540 

1,610 

1,800 

1,770 

1,6,0 

1 , 720 2,000 

1,770 

1,~90 

1,190 

1,2~0 

1,~ 0 

1 , 230 

945 

8 45 1,050 

945 

1 , 050 1 , 080 

980 

945 

910 

767 

675 

607 

2S 

so 

58 

5H 

June 

5~6 

474 

480 

469 

410 

~go 

406 

618 

464 

575 

512 

289 

262 268 

262 

26S 

2Sl 

216 

176 

159 

141 

130 

124 

187 

215 

lSO 

96 

82 

96 

gg 

Mi nimum 

11 

Q 

17 

J uly 

61 

62 

40 

57 

54 

52 

S6 

S7 

~1 

56 

~7 

42 

42 

56 

51 

26 

26 

26 

16 

~ 

68 

S2 

18 

14 

11 

g 

8 

8 

7 

6 

7 

lloa.o 

14 .5 16 . 9 26 .4 

47 . 4 

5 

5 

8 

15 

11 

10 

24 

24 

50 

~ 

29 

25 

25 

25 

25 

21 

20 

20 

21 

26 

24 

S4 

24 

19 

15 

15 

H 

16 

13 

1~ 

lS 

Sop~. 

15 

1~ 

1S 

lS 

12 

12 

11 

11 

11 

11 

11 

11 

12 

lS 

17 

16 

1~ 

16 

14 

16 

lQ 

24 

50 

42 

52 

50 

17 

22 

65 

5Q 

Runott in ac re-teet 

89~ 

1,000 

1 , 620 

J a.ouary ............ .. .... .. ............. . 770 ~ 21 24 . 8 1 , 550 February ... . ....... . . .. ..... . ....... . . . . . .. 1 , 553 112 24 55.5 5 , 080 lla.roh .. . ..... . . . . . . ... ..... . ....... . ... . ... 4,768 398 46 16' 9 , 460 April .. .. .. ........ .. .... .. . .. .. ......... 16,576 9 48 308 555 52 , 880 May . ... . ..... . . . . . . . . . ... . ..... . ........ . . . 38 , 92? 2 , 000 607 1, 256 77 , 210 

J uno ...... .. .. .. . ........ . ...... .. .. .... ... B,2S6 5S5 82 275 16, 540 J uly.. .... .... ........ ..... .... . .. . .. .. .. .. 920 68 6 29 . 7 1,820 August . . .. .. .. .. . .. .. .. . .. . .. .. .. .. .. .. .. . 620 50 5 20 .0 1 , 230 

Sept ember . . .. . . . .. . .......•...... . ~ . ....... f---- 6+---- ~+----'-1+---0_. ~'-1---_:,_2_20_ 

Water year 1940 - 41 . . ... o.. . ...... . ... ... 74 , 760 2,000 & 20& 148 , :500 
RIO ORANDE BASIN 

Cham1 ta ditch near Chami te , N. Mex. 

Location .- Water-stage recorder, in 1\'Wt sec . 5, T. 21 N., R. 8 E., 2,000 rest dovm- stream !rom head gate, lt miles upstream !rom gaging station on Rio Chams near Cham1 ta, and 3a miles northwest or Chami ta . 

Records ava1lable .- March 1936 to Apr1l 1941 (discontinued) . 

Remarks .- Ditch diverts water rrom lett bank or Rio Chama ror irrigation on San Juan 

--urant. Many other dItches divert rrom Rio Chama , but no records ror thmt were obtained . 

October ... . .... ... • November ••.... . . .. . 

December .. .... . •.. • 

January .. . ..... . .. . 

Sante Clara ditch near Espanola, N. Mex. 

Location .- Water-stege recorder and 4-foot Parshall nume , In NWt sec . 15, T. 20 N., R. 8 E., 300 teet upstream from Siphon under Santa Clara Creek, three-Quarters of a mile east or Santa Clara , 2 miles downstream rrom head gate , and 2 miles south or Espanola . 

Records ava1lable.- March 1936 to September 1941. 

Remarks .- Ditch diverts water from right bank o! Rio Grande In SEt sec. 3, T. 20 N., R. 8 ~or irrigation on Santa Clara Pueblo Grant . 

Dlveralon , ln acre - teet, water year Ootober 1Q4.0 to September 1941 

october . ... . . November., . . . 

December • .. , . January .. ... , February .. . .• March •. . ••• .. 

0 

0 

0 

0 

29 

0 

A.prU . .. . ... . May ••.. . ...•• 

June •.......• 

Jllly ... ... .. . 

August .. .... . September ... . 

2.2 

200 

~87 

79 

149 

108 

1fater year 19.0- 41..... .. ....... 954 
234 RIO GRANDE BASI N 

ruo Santa Cruz at Cundiyo, N.Mex . 

Locati on.- Water-stage r ecorde r, lat. 35°58 ', long. 105°55 ', In BEtNwt sec . 17, T. 20 N. , R. 10 E., 135 teet downstream !r om hi ghway bridge at confluence or Rio Medlo and Ri o l'rl joles and a quarter or a nlle northwest or cundiyo . 

Records available .- Septembe r 1931 to September 1941 In reports or Geological Survey. September 1915 to December 1931 (as Rio Medlo at Cundiyo and ruo Santa Cruz above Chimayo , N. Mex.) In reports or State engineer. 

Averse;e dlscha!J!ie .- 24 yea rs (1916-29, 1930-41 ). 33.9 second- teet. 

Extremes .- Max imum discharge during yeari 550 second-t eet May 14 (gage he i ght, 3.39 reet); minimum da lly, 4 .6 second-t eet Nov . l . 1931-41: Maximum discharge, 2 , 610 second-t eet Sept. 24 , 1931 (gage he i ght, 8.20 

teet, datum then In use) , !rom rati ng curve extended above 170 second-teet; minimum 

dally, 3 second-teet l'eb . 3, 1932, and Jan. 21, 1935. 

Rema r ks .- Records good except those ! or March and April, whiCh are ---pei'TOds or l ee errect or no gage- height record, whi ch are poor. talr, and those ror 01 versi ons above 

station t or Irrigation. 

Discharge , in second-teet . water year October 194.0 to September 1941 

Da Oct . Nov. Dec . Jan . Feb . Mar. Apr. llay June July Aug . Sepl. 

1 19 12 b9 12 all 19 66 167 ~21 1~8 H 2 

2 18 ~~ b9 11 a9 2~ 72 25' ~0 1 128 41 ~1 

3 18 12 b8 7.~ alO 20 55 2~7 289 119 42 :10 

4 ~~ 1~ •be b5 •b9 18 45 260 274 U 2 46 2\l 

5 26 11 b8 b8 blO 20 5 0 204 278 104 45 27 

6 27 1~ b9 b10 b10 19 5~ 221 271 101 42 27 

7 2~ 12 b9 b12 11 19 '~ 23, 278 ~ 58 2& 

8 21 12 b9 •bl~ b9 21 42 244 282 85 69 2& 

9 20 •12 b10 al~ blO 17 46 293 271 8 2 8 3 2& 

10 2~ 9.9 11 &12 10 19 55 Sl7 260 76 97 24 

11 23 4.5 12 aH 11 2 4 59 13 247 eo 97 24 

12 20 b5 11 al6 11 ~ 70 365 218 76 10~ 24 

13 19 b5 11 al6 11 19 67 ·~7 204 67 101 26 

14 18 b5 11 al3 11 19 64 482 198 62 96 26 

15 18 b8 7 . 0 aH ~~ 22 75 H2 198 61 8 9 27 

16 17 b9 b6 all 13 28 

~ ~96 195 56 79 24 

17 16 bll b9 a9 ~~ 28 :l88 209 52 79 23 

18 16 blO bl3 all •13 ~0 79 ~~2 224 50 70 24 

19 16 bH 8 . 2 al2 13 ~0 :;; ~96 240 50 63 28 

20 15 12 b9 aH ~~ 44 ~70 2 « 57 63 44 

21 H ll b10 a15 H 51 7 349 237 59 69 ~1 

22 H •11 bl2 al2 15 « 56 ~49 237 66 61 

23 13 11 •bl5 alS 17 ·~ ·~ 45 3U 221 58 5 4 8 5 

24 13 11 H al2 17 47 44 ~37 231 57 51 54 

25 ~~ 11 12 aH 17 56 so ~·7 216 ss 46 46 

26 13 11 12 all 16 50 6 4 345 198 50 42 41 :n H 10 bl3 all H 46 103 ~61 181 63 38 ~9 

28 16 b7 H al2 14 53 112 ~5· 17~ 53 36 ~ 

29 H b9 lS alS 53 11~ 349 162 47 38 lOti 30 14 blO 13 al4 56 115 345 148 « 38 93 31 lS lS al3 56 333 44 35 

Month Second- Maximum IUniaum lie an Runorr 1n root-days ac re-teet 

October . ... . .. .. ~. ............... .... 555 .. 13 17.9 1,100 November . .................. ..... ....... 306 .5 H 4.6 10.2 608 December .. ... .... .......... ~28 .2 16 6 10.6 651 - - ----- Calendar year 1940 ... ... . . .. .... . . .. 10. 820 .~ 150 4.6 29.6 21 ,460 ----- -- January . ··· · · · · · · · · · ·· .. . ... . ... . ... . . . . 374.3 16 6 12.1 742 February . .. . .. , .. . . ...... .... .. ... . . . . . .. . . 3 45 17 g 12.~ 684 Ma rch .. .. .. . . .. . . . . ... . . . . . ... . .... . 1 ,016 56 17 32.7 2.010 Ap ril . . .. .. . . •.. . . . . . • . .•. ...... .... ... 2 . 016 115 42 67.2 4,000 llay . ... ... ...• . . • . .... ........ . 10. 211 482 167 ~29 20 . 250 June .. . .. . . . . . . . ......... ... ..... .. 7 , 005 321 148 2~4 1~ 890 

J uly .. . .. . . ...... ....... .... .... ..... ... 2 , 24.2 138 44 72-3 4 , 450 August. . .... ........ .... 1 , 915 10~ 35 61.8 3 , 8 00 Septezber .. ... .. .... .. ..... ... ...... .... 1 ,126 106 23 37 .5 2~0 

Water year 1940-41 . . . . . . . . . . . . . . . . . . . . . . 27 4~ .0 48 2 4 . 6 75 . 2 54.420 

26:e:~c?:ft~~r;:;;, ~6 Z! ~~ ~)mi~9 5~~ c~~~t~rt. J Aug. 12 (4 p.m. ) 289 aee . -rt.; Sept. 20 (1 p.t:t. )' 

• Winter cHa charge measureme nt made on thh day. • lfo gage -height record; discharge eomputeO on beds or weather rocOl'd.a and rec ord ror bbudo Creek at Dixon and Rio Colorado near Questa. b Stage-dischar ge r elation arrocted by leo. 
RIO ORANDE BASIN 

Santa Cla ra Creek near Espanola, N. Mex. 

Location.- Water-stage recoroer and conc rete control, lat. 35°58', long. 106°11', In 

SWtsWt sec. 11, T. 20 N., R. 7 E., Similes upstream from mouth and 5i miles southw or Espanola . 

Records available.- Feb ruary 1936 to Sep tember 1941. 

Extremes.- Maximum discha rge during year, 970 second-feet Sept. 22 {gage height, 5.65 

fe et) , from rating curve extended above 36 second-teet on basis or slope-area deter 

mlnatlon at gage height 4.19 !eet; min imum dally, 0 .9 second-teet Dec . 16. 

1936-41: Maximum discharge, that or Sept. 22, 1941; mlnlmum dally, 0.8 second-! 

Jan . 25, 1938 . 

Remarks .- Recorc:ls !air except those !or periods or no gage-height recorc:l, doubtful gag 

---nerg/it record, lee ertect, or when the total !low bypassed the station, all o r whlc 

are poor. Small diversion a quarter o ! a mlle above station. 

Discharge , in second-teet, water year October 1940 to September 1941 

llaJ Oot . Nov. Dec . Jan . Feb . War . Apr . llay June July Aug . St 

1 s .o s. 4 S.6 4.2 4.5 5.1 7 .6 alB 25 7.6 4.3 

2 2.9 3.6 3.6 4.2 4.0 5.1 7.4 a20 25 7.4 4.3 

3 2.9 3.5 3.5 2.3 4.5 4.9 7.4 a21 24 7 . 1 4.3 

4 s . o 3.7 3 . 5 bl.S 5.0 5 .1 7.1 a22 24 7.1 •. 2 

5 3 . 5 3 . 3 s.e bl.4 5. 3 5.5 7.4 a22 23 7.1 4.0 

6 3.5 3.3 3.8 b3.0 4.7 5.3 7. 4 a23 22 6. 6 4.0 

7 3 . 5 3.3 3.6 b2.5 4. 5 5. 3 7. 6 a24 22 5. 2 4.2 

8 3 . 5 3.2 5.6 2 .9 4.2 4.7 7.9 a25 22 5. 9 4.5 

9 3 . 6 3 .1 3. 6 b5.2 4. 2 5.3 7 . 6 a26 21 5.9 4.7 

10 3 . 6 3. 0 3 . 6 b3 . 6 4.3 4.5 8 .4 27 20 5. 7 4. 5 

ll 3.6 l.5 3 . 8 4.5 4.2 4. 7 s . 4 29 19 6. 2 4.0 

12 5. 5 5. 0 4.0 4.9 4.5 5. 1 8.7 so 18 6. 6 4.2 

13 3.& 1.5 4. 2 4. 7 4.2 5. 1 e .g 31 18 7.1 4.0 

14 3.5 1.8 4.0 4. 7 4. 2 5. 5 8 .7 55 17 6.6 5.8 

1~ 3.6 2 . 1 bl.3 4. 5 4.5 5.5 8 . 7 34 16 6. 6 5.6 

16 3.5 3.5 b.9 5.8 4.5 s .1 8 . 9 35 15 6. 4 6.1 

17 3 . 3 s . o 2.7 b3.2 4. 5 5 .3 9 .2 35 15 6 . 4 5 . 7 

18 5. 5 2.8 4.3 b2.1 4. 5 5.3 9 . 2 36 l4 5.7 5.3 

19 3 . 3 4.5 3 . 0 5. 6 4. 5 5.7 8 . 7 55 13 5.5 4.9 

20 5.3 5 .7 2.6 5. 3 4.7 5. 7 8 . 4 33 12 5 .7 5. 3 

21 3.& s.o 2 . 7 s .s 4.9 6.4 8.9 31 l2 5.1 5.7 

22 3.5 4.5 3 . 3 5.1 4 . 9 6. 2 8 . 7 28 12 5. 1 5.3 

23 3-5 4.5 3.6 4. 9 s.1 5.9 9.2 27 12 4.9 4.9 

24 s . s 4. 5 4.3 4.9 5 . 1 6. 6 8 . 4 27 15 8.4 4.3 

25 3. 0 s . s 4. 2 4.9 s.1 6.6 8 . 7 28 10 6.2 3. 8 

26 3.0 a.4.0 5 .6 4. 9 4.9 6.4 9.8 27 9 .5 5 . 3 s.s 

27 3. 2 4.2 2 . 9 •. s 4.5 5.9 ll 27 8 .9 s .1 ~-'3 

28 3 •• 5.0 4. 0 4.8 4. 7 6 . 2 12 28 8 .4 4.7 5.8 

29 3 . 4 3.8 4.2 4 . 7 6.6 a12 27 8 .1 4.3 4.0 

30 3.2 s.e 4.2 4.6 6.9 a14 26 7.9 4.0 { . -~ 

31 3 . 5 4.5 4.5 7.4 26 4. 2 3.61 

Second- Month lta.x1mWI root-days WinimWI lie an Runort 

aore-tt 

October ..... . . ······· ····· ··· ·· ···· ·· ·· 104.2 5.6 2 . 9 3 . 36 

Novembe r ...... ····················· ·· ··· ··· 103.5 5.7 l.S 5. 45 

December .... . . .......... ..... .... .... ... ... 108 . 3 4.3 . 9 s . 49 

-- ----- Calendar year 1940 ········ ······ ·· ··· 426.~ 19 .9 3. 90 2,1 

-- ----- January . ....... ····· ··············· ······ ·· 123.3 5.3 1.5 s.9s 

February ....... ... .. .. ..... . . . .. · ·· ··· ··· ·· 128. 1 5.3 • . o 4.58 

March . ..... . . . ....... . ..•........ . ..• . ..... 174.7 7.4 4.5 5.64 

Apri l. ... . .....•.. ········· ······· ····· 266 . 5 l4 7.1 s .ss 

May . .... .. ..•.. ... ····· ··· ··· ··· ··· ··· ·· ··· 86~ 56 18 27 . 8 

J une . .. . .......... ·· ···· ········· ···· ··· ··· 488 . 8 25 7.9 16.3 

July ............. ····· ···· ········· ··· ·· ··· 186. 5 8.4 4.0 6.02 

August . . .......... ······ ·· ····· ····· 136. 5 6.1 3 . 6 4.40 

September .. ...... ······ ······ ··· ······ ·· 141.4 42 2 . 0 4 . 71 

Water year 1940-41 . . . 2.,824.6 42 .9 7 . 74 5 E 

l'eak d1Boharfo .- Juno 24 {4 p. m. ) 106 soc.-rt. ; Sept . 22 (9 :30 p. m. ) 970 sec.-ft . a No gage-he gbt record.; discharge computed on baa1a or records for Nambo Crook near Nambe, ani 

Rio Tesuque above c11vors1 ona . near Santa Fe . 

: ~~~g:~i•:z::~~o~:~:t!~:o~~o~~=~h~~g! ~~111 putod on baa1a or records ror Rio Tesuque above dh 

s1ons near Santa Fe and Hill acequia near Espanola . Note . - Total rlo• bypaasod gage Oct. 2:5 to Nov. 26 and Jan . 23 to Fob . 6 , dur1ns conatruct1on Ri'I'I"a'Cequ1a div ersion dam; dhchargo oomputod on baah of occaa1onal readings of head on a 1 . 5-J Cippolotti •oir, f1ve discharge measurements , •so thor r ecords and recorda for Nambo Crsek near Nt 

and Rio Tesuque above d1vers1ona near Santa Po. 

498588 0 - 43 - 18 
RIO GRANDE BASIN 

Principal diversions rrom Santa Clara Creek, N. Mex . 

Records or discharge are collected ror two ditches that divert water rrom Santa Clara 

Creek. Each or these ditches Is equipped with a water-stage recorder tor collecting gage- height records,and with a Parshall flume . 

Hill acequla diverts rrom le tt bank or Santa Clara Creek In SWi sec . ll, T. 20 N. , R. 7 E., 

300 teet downstream !rom gaging station on Santa Clara Creek near santa Clara . Flow Is 

supplemented by Infiltration to concrete pipe line through which water Is diverted. 

Water Is used to supply Guachupangue dl tch and !or Irrigation or Indian lands on the 

right bank or Santa Clara Creek near the village or Santa Clara. Records available, 

November 1940 to September 1941. Records tor Hill acequla near Espanola tor the period December 1939 to November 1940 not equl valent. 

Guachu~ue dl tch dl verts !rom lett bank or Hill acequla In swt sec. 9, T. 20 N., R. 8 

!:., t eet downstream !rom gaging station on acequla. water Is used tor Irrigation or lands on the lett bank or santa Clara Creek near the village or Guachapangue. Pri or to Nov. 14, 1940, ditch diverted directly !rom lett bank or Santa Clara Creek In SEt 

e.3. 8, T. 20 N. , R. 8 E. Records available, March 1936 to September 1941 . 

These are the only diversions !rom Santa Clara Creek below the gaging station on that etream near Santa Clara. 

01vera1one in aore-reet .,.ter year Oc tober ~940 t o Se"Dtnber 1941 

l'tontb 8111 Ouaobul>a.n.gue rtonth 8111 Ouaobupangue 

aoequla ditoh aoequi a d.ltoh 

October •.. .. .. .. . .. . . . 0 April. .,., 126 55 No'9'eaber aO 0 llq .... .. . 212 8 0 December .::::::::::: :: 0 0 June • •••• • 299 129 Ja.nu&l"T .... .......... 0 0 Jul,. .. .... 295 123 February .. .. .... ...... 7. 7 0 August • •• . 214 92 Xarob .. .. . • •.•. •.•• •. • 71 9 .3 September . 120 55 

Water year 1940 - 41 . ............ . . ... .. . . .. . . . .. . ... . ........ . l,!\46 5.:5 

• Nov. 14·- :roJ now d1vere1on oOIDpletod and stat ion pl aced 1n operation . 

San Ilderonso dl tch near Espanola, N. Mex. 

Location.- Water-stage recorder and 2-!oot Parshall flume, In sec. 22, T. 20 N., R. 8 E., 

7,500 reet downstream !rom head gate and 2t miles s outh or Espanola. 

Records available.- December 1939 to September 1941. 

~ 

RemarkS.- Ditch diverts water rrom rlght bank or Rio Grande In SEt sec. 16, T. 20 N., R. tor Irrigation near San Ilde!onaq,. Records Include seepage Inflow between head 

gate and gage . 

D1Ter•1on 1 i n aore-teet, 'lft.ter year Ootobn l V40 to Sept .. ber lV41 

October , . . • . . . • 28 April . . .•. lo?em'ber. , . . . . • 0 l1a7 • . .. . .. 

December • ... , . . . 0 June • . .... JIUIU&l"T.. .. . .. .. 0 Jul)'., .... 

Bebruarr . .. ... . . o Auguet • . .• Haroh .. • • . . . • • . • 0 Septnber . 

s •• &62 

b29 

80 

7 . 5 55 

a 1'1&7 1-8 J no reoor4 liar 7 t o June 12, <11 t-oh and gage ~rubmerged bJ OYertl ow rroa Rio orande . b .Nne 13-30 , 
RIO GRANDE BASI N 237 

Nambe Creek near Nambe, N. Mex . 

Loca tion .- Wa t er-stage re corder and concrete contr ol , lat . 35°62', l ong . 105°57 ', In sec. 24, T. 19 N., R. 9 E. , In Nambe Pueblo Grant, 1, 000 t eet downstream trom diversion dam t or Nambe Canal, 21 miles s outheast or Nambe, and 61 miles upstream rrom Rio Tesuque . 

Recorda available .- May 1932 to September 1941. 

Extremes.- Maximum discharge obse rved during year, 835 second-teet Sept. 20 (gage height, 6 .35 t eet , ! rom h!ghwater mark In well) , trom rating curve extended above 110 second- teet by logarithmic plotting on basts or slope-e.rea determinat ion at gege height 6.2 teet; minimum dally, 1.7 second- teet Jan . 4. 1932-41 : Maximum discha rge , 878 second-teet Aug . 23 , 1935 (gage height, 6 .43 teet) , t rom rati ng curve extende<l above 65 second-t eet by logari thmi c plotting; no flow s everal days In October 1934 . 

Remarks.- Records good except t hose tor pe r iods or Ice etrect, which are tal r, and thos e period or doubtf ul or no gage-height record , wh i ch are poor. Nambe Canal diver ts wate r 1 , 000 t eet upstream rrom stati on tor Irr igat ion . 

D1soharge , in ae.oond-taet , water year Oc t ober 10-'0 to September 104.1 

Da~ Oct . Nov . Dec . Jan . Feb. Wa r. Apr . llay June J u.l y Aug . Sept . . .. 1 s.e &.J '·' •.e b:S.V •&.6 17 4S 11e '7'2 24 16 2 7.e 6.6 '·' '·' 1>:5.7 &.e 16 es 116 70 22 12 3 e.l 5.s 4.4 b2.& b:S.V &.e H 60 108 6e 22 lS 4 e.• o.s b4.2 bl.7 b •• 1 6.6 H 68 108 68 lV 11 5 e.l 4.e •W.l bS,S b4.2 6.0 H M 100 64 1e v.e 

6 7.e o.s •• 6 b4.6 •w.• &.e u 6e 100 66 17 v.o 

7 7.& &.1 4.4 1>:5,7 '·' 5.5 H 75 lOV 5V 17 v.e 

8 7.2 6.1 b6.4 bJ,Q 4.4 w.6 H es 110 56 19 e.l 

9 6.v 5.S w •• b4.1 b4 . 2 6.6 u 92 102 6;1 21 7.8 

10 8.1 4.4 4.8 W . 1 '·' b6.1 1 7 96 94 60 21 7.8 

11 e .l s.o •• 8 w.e '·' o.s 1 6 96 87 61 20 8.1 

12 7 .& W,4 4.8 •.e 4.6 &.2 le 100 77 4V 2S 8.1 

13 7 .2 1>:5.7 4.& '·' 4.& 6,2 21 1 21 76 .6 27 e.• 

14 e.v bS.S 4.6 ••• '·' 6,4 20 uo 7V 44 2V e.v 

15 6.v •w.e 2.7 4.4 4.6 6,2 21 1Sl eo 4S 27 Q,5 

16 6,7 b&.S b2 . 4 W.4 4 . 8 6,2 21 1S1 76 40 25 8.1 

17 6,4 b&.& &,5 •W.l 4.6 6.9 22 1ev e7 so Sl 7.8 

18 6.2 o.e 5.1 l>S.5 4.8 7 .2 21 1S8 95 S9 26 8.1 

19 6.2 b6.0 4.1 W,1 •• e e.• 20 lSe V7 S5 21 8,4 

20 6.0 b6.1 bS.7 W.2 4.e <t9.~ 17 128 gg S4 so 7e 

21 6.0 w.6 l>S.7 4.2 5,1 v . o 16 118 98 S6 18 dS5 

22 6 .0 5.1 W.l b4 . 2 4.8 9,2 1 5 118 96 S6 17 d25 

23 6.0 6.1 b4.e 4. 2 5.1 v . 2 16 115 gg M 21 d55 

24 6.0 &.1 5.1 W. 2 4.8 9,e 1 5 114 lOS S5 20 dS5 

25 5.8 6.1 5 . 1 •• 2 4.8 11 16 117 102 S1 19 dSO 

26 6 .e •• e W.4 l>S .9 4.8 10 18 

I 120 V7 S1 le d27 

27 6.0 •• 4 •W.4 W.1 W.4 9, e 2S 125 92 S4 17 d25 

28 5 ,8 4 . 4 w.6 s.u W.6 10 26 12S VI 29 16 d30 

29 5 . 5 4.4 4.6 4.1 - 11 26 I 120 e6 27 17 d90 

30 5 .e 4.4 4.8 s.v - 12 se 1 20 76 25 17 d75 

31 5.5 - 4.8 s.v - u - 1 20 - 24 16 - Second- atax"1•WD WinimUJt Moan Runott in Wontb roo t-<la,ya acre-teat 

October .. . . . ........ .. . . . . . . . . . . . . . . . . . . . . . 210 .8 e.1l 5 .6 6 . SO 418 

November . . . . . . ..... . ... ........... ......... H5. 2 6.0 s.s •• e7 290 

De c ember . . . . . . . . . . . . . ·· ·········· .......... 1S6 . S 5.6 e.• 4 . 41 271 

------- - - --- - ------ ------ -- ---- Calendar year lQ'O ·············· ········ 3,706 . 1 41 e.• 10.1 7 ,3"0 

------- ------ ------ ------ ------ January . ........... . . . . . • ·················· 124.0 4.6 1 . 7 4.00 246 

February ..... . ... . . . . . . . ... , .. •.... .. . . .. . . 1 26 . 4 5.1 S . 7 4.51 251 

~~~~ ::: ::::::::: :::::::: :~::::::::: ess.e H 4,6 7.70 474 

M7 se u 1e.2 1,080 

llay .. . . .... . . .. .•......... . •... . . ······ ··· · ~.272 uo 43 108 8,490 

June . . .. ... . ....... . ...... ... . , . . o •• • • • •••• 2,870 ue 75 95.7 !5,690 

July . ......... .. . . . ... . ... . .. ············ ·· 1,398 72 24 45.1 2,770 

August ... .. .. . . .... . . ...... o •• • • • o • • o • •••• • 666 31 16 21.1 1,SOO 

September .... . .......... . . .. . ··· ··········· 6e5.2 90 7.e ee.e 1,380 

Water year 1940-41 ············· ·· ···· ··· 10 , 410.2 uo 1.7 28.6 20,6,0 

Pule diooharse .- J'ul.T 17 (S p.a.) 193 oeo.-rt.J Au.g. 20 (1 p.a.) 226 u o.-rt.J Sept. 20 (12 a.) 

835 eeo.-tt. * Winter d1aobarge meaau.rnent made on tbie day. b Stage-d.ieobarge relation affec ted. by 1oe. d. Doubtful or no gage-height rec ord.J diaonarf ocaputed on bash or weather recorda, and. recorda for station at Pajoaque Brldgo, near Jfusbe, an Rio Santa Orus at Cundiyo 
'38 RIO GRANDf: BASIN 

Nambe Creek at Pojoaque Bridge, near Nambe, N. Mex . 

'cation .- water-stage recorder, lat . 35°54 ' , long . 106°01 ', In NWt sec. 8 , T. 19 N., R. ,l 300 reet downstream rrom head or Barranco Alto dl tch, a quarter or a mlle up- i· stream rrom highway bridge at Pojoaque , l mlle upstream trom Rlo Tesuque, and 3 mlles 

1

1 west or Nambe. 

cords avallable .- February 1936 to September 1941. 

.~ :tremes .- Max imum discharge during year, 1 , 700 second-teet Sept. 20 (gage height , 5.56 ·· l'6et/, rrom ratl ng curve ex tended above 660 second-teet on basis or elope-area determination at gage he ight 6 .6 teet; min imum dally, 0 .1 second-root ov. 10-16 , Aug. 26- 30 : 

1938-41 : Maximum discharge , 4 , 700 second-teet July 15 , 1938 (gage helght, 6 . 6 teet, r rom noodmarks) , by slope-area method; no now at times . . , 

i 

.marks .- Records good except those tor pe ri ods or Ice errect -anathose t or May to Septembe r, all or whlch are poor. or no gage-he ight record 

Discha rge , i o second-teet, water year Oc tober 19.0 to September .1961 

~ Oct . 

6 

7 

8 

9 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

• .0 

.1 

17 

16 

18 

H 

u 

14 

13 

12 

12 

13 

11 

a9.0 

a8. 5 ae.o a? .o 

a6.5 

a6.5 

a.f.5 

a3.0 

a2 . 5 

2,6 

2 . 6 2 .6 

1.7 

1 ,7 

1 .3 

1.6 

1.9 

1.9 

1 . 5 2 . 2 

Nov. 

1 .7 

1.3 

1.0 

al.O 

•• s 

a . 3 

a.2 

a. 2 a, 2 

a.1 

a.1 

a.l 

a.1 

a . 1 

,1 

.1 

1 . 3 3,7 

7 . 2 8 ,2 

6.8 

5 , 3 

6.6 

7 , 2 5,3 

4.3 

5,3 

6.0 

4.0 

5,6 

Dec . 

6.3 

4.0 

3.7 

3.7 

<03.7 

3.7 

4.0 

6 . 3 7. 2 8 , 2 

9 .6 

8 . 6 

8 . 2 

6 . 8 4, 6 

1>4,3 

7,2 

9 ,1 

6.8 

6.0 

6.0 

7,7 

9 . 1 

10 

12 

8 , 2 

•8.2 6 , 2 

6.8 

6,0 

6 , 3 

Wonth 

Jan . 

6 ,0 

6.6 

4.3 

1>3.7 

b4.3 

b7.0 

b6 . 8 

b7 .7 

b7.7 

b8 . 2 

7 ,7 

e .6 9 . 1 7 , 7 

6 . 2 

7 , 7 

• ? . 2 b6.0 

b7,6 

8.2 

b6.8 

7 . 2 

7 . 7 

7 . 2 7.2 

6,3 

6,8 

7 . 2 

6.2 

7 . 7 7,7 

Feb . 

6,3 

6.:5 

6 . 8 

6.3 

6 ,3 

•'7. 2 6,8 

6,8 

6,3 

6,0 

6 .3 

6 , 6 

5.3 

6.3 

6.6 

6,0 

6,3 

6.8 

7.2 

7.7 

7 . 7 7,7 

8,6 

7.2 

7,2 

6.0 

6 ,6 

6.6 

Mar. 

6,8 

6 . 8 

6.0 

6.3 

6,3 

6,6 

6,3 

6,0 

7 . 7 

6 .8 

6,8 

8 , 6 

9.1 

9 ,6 

8 .6 

8 ,6 

9 , 6 

10 

12 

16 

18 

17 

16 

18 

20 

19 

16 

16 

16 

16 

18 

Secondroot-days 

Apr . 

23 

23 

21 

18 

19 

18 

17 

17 

18 

21 

22 

26 

31 

28 

28 

26 

36 

34 

3 4 

28 

24 

27 

28 

24 

22 

26 

36 

41 

41 

50 

77 

127 

193 

277 

274 

174 

116 

HO 

145 

154 

167 

169 

182 

199 

159 

ol45 

ol40 

o150 

el35 

116 

o120 

ellS 

ollO 

o105 

olSO 

172 

2H 

187 

129 

114 

o106 

llaxiaua 

Juno 

el40 

180 

150 

98 

108 

126 

114 

127 

ellO 

o100 

o86 

76 

70 

70 

76 

July 

60 

49 

48 

42 

40 

66 

45 

36 

27 

28 

30 

32 

31 

25 

21 

67 16 80 36 

78 41 e80 22 e90 23 

o86 6 2 e90 a45 e90 34 120 .. 106 25 

126 22 93 33 89 27 87 18 70 14 

6,3 

M.1n1aua lloan 

Aug . 

2. 2 3.7 

3.7 

2,6 

2.0 

e.8 2.0 

1.9 

14 

28 

16 

20 

•26 

a20 

54 

35 

28 

12 

2.4 

71 

37 

24 

020 

o17 

ol.6 

o8 ,6 

.1 

.1 

.1 

6.8 

Sept . 

2 .8 

1 ,9 

.9 

.3 

. 3 

.3 

6 ,3 

1.0 

1.0 

.7 

. 7 

.6 

2. 2 4.3 4 , 6 

2.8 

2.2 

1.7 

8 . 8 191 

a70 

37 

91 

84 

37 

32 

so 

39 

174 

102 

Runorr 1n 

acre-teet 

--------------------------------1---------+--------r------~~------~-------- l tober . ....... .. ... .. ... , . ...... . . vember .. . .... . . . ... . . . .......... . . comber. ....... . ... . ... . .. . .. . ...... . 

: Calendar year 1940 

., 

. .nuary .... . ... . . . . . . . . .. . ... . . •bruary ... . . . ... .. .. . . . . . . . . . . . . . .... . . , .rch ... .. . .. . ......... ... .. • . ... .. · tril ........ . ... . . . ......... . . ... . . . . . 

: ~; :: :: ::::: :::::::::::::: :: ::::::: : ,tgust .. . ... . .. . . .. . . .. .. •..•. . , . . •. •.. 

, .. ptember ... .. . . . . .. .... . ........ . . .. . . 

230 ,0 

8 1.9 

208 , 5 

219 . 2 181.8 

3 49 .6 

804 4,760 

2 ,97'7 

1,035...3 474.9 

930.9 

18 

8 . 2 

12 

67 

9.1 8 , 6 

20 

50 

277 

180 

6 2 

71 

191 

1.3 

.1 

3.7 

0 

3 ,7 

5 . 3 5,3 

1 7 

77 

67 

6 , 3 

. 1 

, 3 

7.42 466 

2 .73 182 

- - - 6!7~ - - - _4!4_ 

8 ,91 

7 . 07 6 ,49 

11,3 

26.8 

154 

99 . 2 33,4 

16.3 

31.0 

5 ,010 

~6 

361 

893 1 , 590 9 , «0 

5,900 

2 , 050 

942 1,860 

1

i Water year 1940-41 . . . .... . . . . .... . . . . . . . 12 ,253.0 277 .1 33 .8 24,2go 

: Peak. d1aohargo .. - June 24 (4130 p ·•·) 49'7 a eo, -rt. J July 21 (:S1:SO p.m.) 1 080 eeo ... -tt. J Aug . 20 ·, L:!O p.m . ) 76 seo .-tt .; Sept. 20 (12130 p.m .. ) 1 ,:590 eeo .. -tt.J Sept. 20 (4 p.11 . ) 1,700 seo .-tt.J 

II ~t W1~e~S ~~':h~r::s~: ::~;~!;Dt made on thia day . 

,:X. N~,!~;!:~1Fo~e~:~~~ ~i!!~i~:s omputed on basla or ....,ather reoorc1B and recorda tor station 

· b Stage-d.1aobarge relation a.tfootod by 1oe. e Stage-d1aohargo relation 1ndeterm1nateJ d1aob&rge o0111puted on bash ot gage belgbta , "eather 'oorda , and r eoorde tor atat1on near Nambo and intervening dlveralonB .. 
RIO GRANDE BASIN 239 

Principal diversions from Nambe Creek, N. Mex. 

Records o! discharge are collected tor 12 dl tches that divert water rrom Nambe Creek 

between Nambe dl version dam , 2t miles upstream from Nambe, and confluence wl th Rl o Tesuque . Each or these ditches Is equipped with a water-stage recorde r tor collecting 

gage-height records and each one except Las Joyas, with a Parshall nume. Water dl verted 

by these dl tches Is used tor Irrigati on In the valley o! Nambe Creek, except that diverted 

by Jacona ditch, which IS used ror Irrigation on the lett bank or Rio Pojoaque below Rio 

Tesuque . 

Nambe Canal diverts !rom ri ght bank In SEt sec . 24 , T. 19 N., R. 9 E., 1 , 000 tee t upstream !rom gaging station on Nambe Creek near Nambe. Records available, May 1932 to Septem- ber 1941 . 

Llano Frio ditch diverts !rom ri ght bank In swt sec. 14 , T. 19 N. , R. 9 E. Records available , March 1936 to September 1941. 

Llano dl tch dl verts from r ight bank In swt sec. 14 , T. 19 N. , R. 9 E: . Records available , March 1936 to September 1941 . 

Mocha ditch diverts from right bank In swt sec . 14 , T. 19 N., R. 9 E. Records ava ilable , nay 1936 to September 1941 . 

Comunidad ditch dl verts from right bank In NEt sec . 14, T. 19 N., R. 9 E. Records available, March 1936 to Sep ember 1941. 

Ortiz ditch diverts !rom ri ght bank In SE:i sec . 10 , T. 19 N., R. 9 E:. Small now diverted 

between gage and head gate tor Irrigation or about 5 acres . Re cords available , Febru- ary 1936 to Septembe r 1941 . 

Can~n ditch diverts rrom right bank in NWt sec. 10, T. 19 N., R. 9 E: . Records available, 

rch 1936 to September 1941. 

ce~! a Rincon dl verts r rom lett bank In SEt sec . 9 , T. 19 N., R. 9 E: . Re cords available, r ch 1936 to September 1941 . · 

Las Joyas ditch dive rts from right bank In NWt sec. 9, T. 19 N., R. 9 E. Reco rds available, narch 1936 to September 1941. 

Tru,\illo dl tch diverts !rom right ban k In NEt sec . 8, T. 19 N., R. 9 E: . Reco rds available, 

rch 1936 to September 1941. 

Barranco Alto dl tch dl ve r ts rrom left bank In NWt sec . 8 , T. 19 N. , R. 9 E., 300 teet up- strea"ll from gag i ng station on Nambe Creek at Pojoaque Bridge, nea r Nambe , N. Mex. 

Records available , March 1936 to September 1941 . 

Jacona ditch diverts r rom lett bank In NEt sec . 7, T. 19 N. , R. 9 E. Gaging station is 

three-quarters or a mile downstream from head and 4t mlles east or San Ilde!onso . Records Include seepage Inflow and, at times, Innow rrom Rio Tesuque. Records available , January 1940 to September 1941. Records not equivalent to those ror Jacona d! tch near Nambe collected for pe ri od April 1936 t o December 1939 . 

Several other ditches divert from Nambe Creek, but no records tor them were obtained . 

Diversi ons in sore-feet water year Ootober 1940 to September 1941 ' 

J1ontb !Nom be Llano Prlo Llano J1ooha Comunidad Ortl~ 

Canal diteh dltch dltoh ditch ditch 

Oc tober ....••. .. ... 20 81 ~1 0 53 17 November ••. . •.• . .• • 19 1~9 24 0 

·~ 15 December ... . .•...• . .~ ~7 26 0 so 8 

.January . . .•..•••••• .4 ~.0 ~4 0 1S 1 . 4 February •.. ...•...• 0 2l ~2 0 6.9 4.2 J1arob •............• ~~ 55 52 0 0 n April . ... ........ .. 16 ~ 4S 0 ~ 47 May • .••...••• • ••• •• 70 120 12~ 21 94 46 Juno · ········••••o 92 261 189 21 161 l~l 

July • •..•.•.•..•..• 121 202 1~9 ~~ 186 114 

August ............. 104 l~~ 157 9 . 7 166 108 September, ... .. • .. • 89 76 82 16 95 29 

Water year 1940..4 574 1,201 9~7 101 9~9 527 

l'lonth Canyon Aoequla La a Joyaa TruJillo Barranco Jaoona 

dltob Rincon ditch d1tch Alto d1tcb ditch 

October ... o. o • • ••• • 58 2l 47 0 5 . 6 46 November .. . .. ... o. o. 8~ ~5 52 21 10 40 December ...... . ..•.• 48 40 l.O 0 0 0 Ja.nuary. , , . .. . . ....• 20 4.6 0 0 0 0 Pebrua.ry ....... , .. .. • 22 0 0 0 0 0 tlaroh. o ..... ........ 15 0 0 0 0 0 Aprll •.•• • •• •••. •..• 20 16 8 . 7 l4 25 ~ 

Hay .... . o . .. . . . 0 • • •• 67 67 87 l~ 28 25 June • .• ••••••. ..... • 156 122 264 47 ~6 89 July •...•... . .. . .... 175 l~l 197 69 59 109 Auguat .. ......... . . . 89 88 1~6 2~ 45 70 September . . .. .. .. .. . . 9~ 60 70 12 26 ~5 

Wat&r year 1940- 4 846 584 86~ 199 ~· 4~7 
RIO GRANDE BASIN 

Rio Tesuque above diversi ons, near Santa Fe , N. Mex . 

Location .- water-stage recorder and concrete control , lat . 35°44 •, long. 105°54 •, In S8t sec . 32 , T. 18 N., R. 10 E., 1 mlle upstream !rom Rlto Tesuque and 4 mlles northeast or san.ta Fe . 

Records available .- March 1936 to September 1941 I n reports o r Geological Survey . l!ay 

to october 1919 at site 175 t eet downstream I n reports or S tate engineer . 

Extremes.- Maximum discharge during year, 60 second-t eet May 14 {gage height, 3.00 teet) ; 

minimum dally , 0 .5 second-foot Jan. 4. 1936-41: Maximum discharge , 425 second-feet July 19 , 1936 {gage height , 4 .2 teet, 

rrom noodmarks). from rating curve extended above 10 second-teet by logarithmic 

plotting on basis or slope-area determination at gage he igh t 4. 0 feet; min imum dally , 

0 .3 second-root Dec . 5-9, 1936 . 

Remarks .- Records rair except those tor periods or doubtful or no gage-height record, and 

---orrce ertect, all or which are poor. Flow from small tributary spring di verted above 

station. 

Oiaoharge . 1n second- teet . water year Oc tober l~O to September 1~1 

D&J Oot . Nov . Dec . Jan . Feb . Mar. Apr . llay June J uly Aua . Sept . 

1 1 . 7 1. 1 . 0 1 , 3 1.0 2. 3 &,& 21 41 14 3,'7 2.8 2 1.7 ~ 1 . 0 1 . 2 .9 2 .& &.3 a28 43 13 3. 8 2.8 3 1.7 1.1 .9 b.& 1 . 0 2 . 8 8 . 3 &24 n 12 3.8 2. 7 4 1 . 7 l. ~ 1.0 b.8 1.0 2 . & 8 . 1 a2& 37 13 3.3 2 . & 5 1.8 1.( 1 . 0 b.'T 1.1 2 . 7 8 .1 &28 38 12 3 , 7 2.4 

6 1 .7 1 . •1 . 1 b.S 1.1 2 . 7 8 . 1 &26 37 12 3 .8 2 .3 7 1. 7 1 .1 1.0 b ,7 •Ll 2.4 8.1 &2'7 38 ll 3 . 8 2 .1 8 1.7 l. 1.1 b.s bl.O 2.0 &.1 ae; 33 10 4.1 2.3 9 1.7 1.1 1 . 1 b , 9 1.1 2.8 8,3 30 32 9,& 3 ,9 2. 3 10 2.0 l.( 1.2 1.0 1.1 2A 6.8 32 32 8 . 9 3 . 9 2.1 

ll 1.8 1 ,3 l.O 1.2 2. 3 &.8 36 27 8 . 9 3,7 2 . 1 12 1.8 b . 1 , 3 1.0 1.2 2.8 7.7 36 26 8.6 3.9 2 . 3 13 1.8 b.8 bl.3 l.O 1.2 3.0 e.9 34 24 S. 3 3.9 2,3 14 1. 8 ~ 1.3 l.O 1.2 3.0 e . o 46 22 7.7 3 . 9 e.• 15 1.7 . 7 1.0 1.3 3.0 8 ,3 40 22 e . o 3.9 2 . 3 

16 1.7 *L b,9 1.0 1.4 2 .S e . & 46 22 7 . 4 3,7 2 . 3 17 1 . 7 l.( bu b . 9 1.4 3. 2 9·.3 46 22 7.7 3 . 9 2. 3 18 1,6 1 . •b. 8 1.4 3,6 8.0 42 as 7.1 3 . 7 2.3 19 1.5 1 . b1 ~ b , 9 1 . 6 4.1 7 . 4 45 24 6 ,3 3,6 2 . 8 20 1.6 1 . b,9 1.0 1 . 6 6 . 1 7 . 1 43 26 6 , 1 3 , 7 3 . 6 

21 1,5 b1 .( b . 9 l.O 1 . 8 5 .3 6 .S 49 26 4 . 9 4 . 4 3 . 2 22 1.6 b . b1~ l.O 1.8 6 . 3 6 . 8 46 as 6 , 3 8 . o 4.4 23 1.8 b . 1 . 1.0 1 . 7 4 . 9 6 .3 40 22 6 . 1 3 . 9 7.1 24 1.& 1 ,( 1 . 1:0 1.8 6,1 6 . 3 42 22 4 . 7 3 , 7 6.8 25 1.3 1 . 1 . l.O 1.7 6 . 3 6 , 6 40 21 4.8 3 , 5 d4.8 

26 1 , 3 1. bl. l.O 1.7 6,3 7.1 42 20 4 . 6 3 . 3 d5 . 0 27 1 . 4 1 . bl.( 1.0 1.7 6 , 3 8.9 46 20 4.7 3.2 6 .& 28 1.4 •bl . l.O •L7 6 . 8 13 45 19 4 . 1 3.0 &.8 29 1.2 b . 1.3 1 . 0 6 . 8 13 42 1S 3 .7 3 . 2 21 30 1. 2 l. 1 , 3 1.0 6 , 8 H .. 16 3 . 6 3.2 21 31 1.1 1 . 3 1.0 &.1 36 3 . 6 3 . 0 

Wonth Second- Max imum Minimum lie an Runott in toot-<iaya acre-tee t 

October . . . . . ........... .. . ....... . . . . .. ... 49 . 6 2.0 1.1 1 . 80 98 November . ..... . ........ . ........ • ..•...... 29 .9 1 . 2 . 8 1.00 59 December .. . . . . ....... . .. ................... 34 . 2 1 , 3 . 7 1 ,10 68 -- ----- Calendar yQJ1r 1940 .. ' ..•. ' ..• '.' .. ' ' ... ' 1 , 079 .. 0 12 ,6 2 , 96 2,140 ------- January ... . .. ........ ...... . ... • .. .. .... ... e; .1 1.3 , 5 . 94 68 February ... . ....... ..... ....... . ..•... . ... . 37 . 0 1.7 .9 1 , 32 73 Ma rch . ... . ......... . .........•....... ~ ..... 117.3 6 . 1 2 . 0 3 . 7S 233 Ap ril ... . .. . ... ...• ... ....•.. . ... . . . ... . .. 231.5 H 8. 1 7 . 72 459 llay ......... . . ... . ....... . ... . . .. . 1 , 148 49 21 37 . 0 2 , 280 June ...... .. . .. ...• . ........ .. .. . .. ::::::: : 811 43 16 'if/ , 0 1 ,810 J uly . . .............. .. . ..... ...... .. ... .... ass.1 14 ~ 7 ,58 472 August . . ........ ........... . ... .. .. . ....... 113.8 5.0 3 ,87 226 September ... .... .. ................. ..... .... 133 . 0 21 2.1 4.43 264 

Water year 194o-41 . . . . . . . . . . . . . . . . . . . . . . 2 , 972 .4 4g . 6 6 . 14 6,900 

Peak dhob.ars.e •• J1.ay 14 

46 se c.-ft. 

(1 knd 5 p .m. ) 80 eec .-t t. J Aug . 22 (2 p.m.) 34 aec .. -rt . J Sept. 22 (10 p .m.) 

• Winte r discharge mea.eurement made on th1e day . a lfo gap -be1ght record; di scharge computed on baa1e or records tor Nambe Creek near Nambe . b Stage-dis charge ro1atlon a.ttocted bJ 1oo. d Doubt tu1 gage-beigbt record.; discharge computed on bae 1a or r ecorda and Nambe Creek ne ar Ham be . tor R1to Tesuque near Santa Pe 
RIO GRANDE BASI N 241 

R! o Tesuque at Tesuque, near Santa re, N. Mex. 

Loca t i on. - Water-stage recorde r and concrete control, lat . 35°45•, long . 105°56 •, i n NWtNWt sec . 31, T. 18 N. , R. 10 E. , 2,000 teet upstream from head ot Acequia Medio, 

3 , 100 tee t upst ream ! r om bri dge on U. S. Highways 64 and 285 at Tesuque , 1 mile 

downstream ! rom Rito Tesuque, and 5 mlles no r th or Santa re . 

Records available .- October 1938 to September 1941. March 1936 to October 1938 at site 

3,100 t eet downstream (published as Rio Tesuque at Tesuque Bridge, near Santa re); records equivalent ror flood now only . 

E:xtre:nes .- Maximu!n discharge during year, 500 second-teet Aug. 21 (gage height, 1.90 t ee t) ; no now at times . 

1938-41 : Maximum discharge, 500 second-teet Aug . 1 , 1940 (gage height 1.90 teet) , by slope-area method and that or Aug . 21, 1941; no now at times. 

-Records poor . Diversions above and below station tor irr!gatlon . 

Di s charge, i n s econd-feet, wa t er year Octobe r 1940 t o September 1941 

08,! Oct . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

a0 . 1 

a . 1 a.1 

a.1 

a.1 

a . 1 

.1 

. 1 

. 1 

. 2 

. 1 

.1 

. 1 

. 1 

.1 

. 1 

. 1 

. 1 

. 1 

.1 

.1 

. 1 

.1 

. 1 

.1 

.1 

.1 

. 1 

. 1 

. 1 

.1 

Nov . 

0 .1 

.1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

. 1 

. 1 

. 1 

.1 

Dec . 

(•) 

(•) 

Month 

Jan . f eb. 

0 

0 

bO 

bO 

bO 

bO 

*bO 

aO 

aO 

aO 

aO 

aO 

aO 

aO 

aO 

aO 

ao 

ao 

aO 

aO 

aO 

aO 

aO 

aO 

aO 

aO 

aO 

•.1 

October .......... . ....... , ...• .. ...... . .. . . Novembe r . ... ....... ..... ..•. .•... ..•. •..... 

December .............. . ...... . 

Oftlendar year 1940 ...........•..•....... 

War. 

0 . 3 

. 3 

. 7 

. 5 

.7 

. 5 

,8 

. a 

.s 1.1 

2 . 2 2 . 2 2 .S 

3 . 4 3 . 4 

3 . 8 

6 . 0 6 .4 

8 . 6 

9 . 7 

10 

9 . 1 10 

10 

l.l 

12 

8 , 8 

l.l 

13 

1 2 

13 

Seoond- root.-da,ya 

3 , 2 

.8 

0 

557,4 

Apr . 

1 2 

u 

10 

ll 

ll 

12 

ll 

10 

ll 

12 

ll 

13 

12 

9, 7 

14 

15 

16 

18 

16 

13 

12 

10 

9,7 

e.e 9 . 1 

ll 

18 

20 

18 

18 

llay 

22 

40 

44 

50 

60 

a50 

a50 

60 

68 

83 

81 

65 

87 

85 

66 

58 

52 

60 

60 

49 

45 

4 2 

42 

.. 

« 

45 

47 

47 

45 

44 

H 

June 

44 

44 

44 

42 

38 

38 

40 

40 

36 

34 

31 

27 

22 

21 

19 

18 

18 

16 

18 

19 

21 

21 

21 

20 

• 21 

1.19 

1.18 

ale 

al5 

al4 

J uly 

a12 

a10 

aS 

a9 

as 

a8 

6 .4 

6.0 

4 . 0 2 . 8 

2 . 0 

1 . 8 1 . e 1.6 

1 . 4 

1 . 3 1.3 

1 . 2 1 . 2 1.1 

Aug. 

1.2 

1.1.1 

a. 9 

.e 

.a 

.e 1 . 0 

.9 

1.2 

1.5 

1 . 4 

1.2 

1.2 1.1 

1.0 

. 9 1.8 

1.3 

1.0 

1 . 0 

1 . 2 8 . 2 

1 . 2 2 . 8 1 . 3 &3 . 0 1 , 2 a3 . 0 1.2 a2 . 4 

1.2 

1.2 

u 

1 . 3 1 . 2 

al . & al . 3 al.O 

a . 7 a.3 

a . e 

Se pt . 

&0 .6 

a .e 

a . 6 a . 6 a . 7 

,6 

. 5 

. 5 

. 6 

, 5 

.. 

.6 

. 8 

. 6 

. 5 

. 4 

, 5 

. 4 

.6 

1.2 

1 . 6 6 . 9 10 

8 . 1 5 . 7 

6 . 7 8 , 6 

18 

31 

2e 

Maximum Minimum lie an Runotr i n acre-feet 

0 , 2 0 . 1 0 .10 

.1 0 . 02 0 0 0 

9 , 7 0 1 . 62 

e .3 

1 . 2 

0 

1,110 

January .... . ........... . ....... . ........ ... 0 0 0 0 0 . B 

:~:;;:~?' ::::::::::::::::::::::::::::::::::: 172 ~ 13 '

1 

: -: 1f~8 ~~~ Ap ril .............. ....... ...... ........... 381 . 1 20 • 49 ; 6 3040 

~~• ::::::::::::::::::::::::::::::::::::::: ;~~ n ~L 28 . e 1:~~ 

i~~ai :::::::::::::::::::::::::::::::::::.. :~:; 1:.2 .3 ~:~: ~ September ......................... . ........ 1-_ __:1:27:_:·:_:7+ _ _:3:1 -j. -~4~+--:-::--t-::-:::;:-

l!ator year 194()..41 0 0 0 0. 0. 0 0 0 0. 0 •• 0. 3,181.4 67 0 8 . 88 e,eeo 

Peale <Uaobarl!!.- Ma.r 1~ (81 ~0 p.11 . ) eo oeo.-tt. , Au g . 21 (2 p . m. ) 600 eoo .-tt. , Sept . 22 (10 p.m. ) 

ag: ~~:t ~\11aonarge measurement or obeorvatlon ot no n ow made thta da,.. a No gage-bol gbt reoor4J di aobarge 00111puted. on bae1a ot re oorde t or atat1on aban d1vere1ona near Santa Fe, R1to Te.-uquo near Sant a Po , and 1.ntenen1ng d.ivereione . b Stag -dt ao h.ar ~ r elati on ll.t't eoted by toe. 
-

242 RI O GRANDE BASIN 

Rlto Tesuque near Santa Fe , N. Mex . 

Loca t i on .- Water-stage recorder and concrete control , lat . 35°44 ', long . 105°53', in sec. 4, T. 1? . , R. 10 E. , 0 :9 m!le downstream !rom Santa Fe National Forest bOU!Ila!J 

2t miles upstream !rom moutl) , and 5 m!les northeast or Santa Fe. ' 

Recorda ava!lable .- Ma rch 1936 to September 1941. 

Extremes.- Maximum discharge during year, 38 second-tee t May 4 (gage height, l.BO teet); minimum, less than 0.1 second-root Oct . 31 , Nov. 1, 2, 5-?, 16-18 . 1936-41: Maximum discharge, about 186 second-t eet July 19, 1936 (gage height, 3.2 reet, rrom noodmarks), by slope-area method ; minimum, lese than 0 .1 second-root !or 

extended pe riods. 

Remarke .- Records !air except those ror pe ri ods or lce-errect, whi ch are poor. No dive~ 

----sriiilabove station. 

Discharge , in second-teet. wat.er year Octobe r 1940 to Septembe r 1941 

Da,J Oct . 

1 0 . 2 2 . 2 3 .2 4 . 2 

5 . 2 

6 . 2 

7 .2 8 .1 9 . 1 10 . 2 

ll . 2 12 . 1 13 .1 14 .1 15 . 1 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

. 2 

. 2 

. 2 

. 2 

. 2 

. 2 

.1 

.1 

.1 

. 1 

.1 

. 1 

.1 

. 1 

. Nov . 

b, 2 

b.1 

b . 1 

. 2 

. 2 

. 2 

. 2 

.2 

. 2 

.2 

· . 2 

.2 

Dec. 

0 . 2 

. 2 

. 2 

. 2 

. 2 

. 2 

. 2 

. 2 

. 2 

. 2 

. 2 

.2 

b , 2 

. 2 b.1 

b.l 

. 2 

. 2 

b . 2 b , 2 

b,2 

b . 2 

. 2 

. 2 

. 3 

b . 2 

b , 2 

. 3 

,3 

~ 

.4 

Wonth 

Jan . 

0 . 4 

. 4 b, 3 

~ 

b. 4 

. 5 

. 8 

, 8 

.6 

,6 

,6 

. 6 

. 6 

. 6 

. 6 

b . 6 

b . 5 b,5 

b . 6 

,6 

.5 

b . 5 

.5 

b . 5 

.5 

b . 5 

, 6 

. 6 

.8 

, 6 

, 6 

Feb . 

b0 .8 

b , 6 

b .7 

b , S 

b .S 

b . 9 

1.0 b.e 

b . 7 

.a 

b . S 

.a 

.a 

.9 

1 .0 

1 . 1 1.1 1.2 

1.3 

1 , 3 

1.4 

1 . 6 1.6 1.8 

1 . 7 

1.8 

b l.4 

b1 .6 

oc·tober ......... . . .. . .. .... . ... . November. . .... . . ..... . •... .... •... . December ..... .. ...... . . . • . . . • . ..•....•..•.• 

Calenda r year 1940 

J anuary. . . . ...... ..• . . . ... ..... .. 

February .............. . ..... . •.. ..• .... 

Ma r ch . . .. . ..•..•........... . . .. • . ..... . Ap r il ........•....... • .......•............• 

llay .. .. . ....... ...... . ........... . ........ . June . . . . . . .... . ... . . 

J uly . . .. ....... . ...... ............ ...... . . . August ..... . . . . . ......•...... . •..... 

September . ..... . 

War . 

1.8 

2 . 1 2 . 1 2 . 1 

2 . 2 

2 . 1 

2 . 1 1.9 

2 . 2 1.8 

2 . 2 

2 . 8 2 . 7 2 . 7 2 ,8 

2 .7 

2 . 7 3 . 2 

6 

4.4 

4,8 4 . 8 4.8 

5 . 3 5 .8 

5 , 5 

5 . 3 5 . 8 6 . 0 6 , 2 

7.4 

Second- toot-days 

4 .53 

3 .40 

6 . 6 

366 , 66 

16 . 5 30 , 5 

111 . 1 

227. 7 

561.2 

116.0 6 

13 . 9 

2 

Apr . 

8 . 3 

e .o 

7 •• 6.8 8.8 

8 . 8 

6 . 5 6 . 2 

6 . 5 7 , 4 

7 . 1 

7 . 4 

8 . 0 7 . 7 e .o 

7 . 7 

e .o 7 . 7 7 . 4 6 , 0 

5 , 5 5 , 5 5 ,3 

5 . 1 5 ,1 

6 . 0 9 . 5 

1J 

12 

15 

llay 

18 

29 

32 

35 

J2 

28 

26 

25 

25 

24 

24 

24 

22 

21 

20 

18 

18 

15 

H 

12 

ll 

ll 

9, 5 

9, 5 

9,5 

9 . 5 

9 . 5 

8 .9 

8 , 3 

7 .7 

8.a 

Waxi mWI 

0 . 2 

.2 

.4 

6.8 

. 6 1.7 

7 ·' l5 

36 

6,8 

1 . 4 

.9 

6 . 8 

June 

6 . 8 6 . 5 6 . 2 

6 . 2 

6 . 0 

5 . 5 5 . 8 5 . 5 5 . J 

5 . 1 

4 , 8 

4 . 2 4 . 0 3 . 8 

J. 6 

J , 2 

3 . 2 

3 . 2 J . 2 J.1 

2.9 

2.7 2 . 7 2 . 7 2 .4 

1 . 8 1.7 

1.4 

1 .4 

l.J 

Minimum 

0.05 

.06 

.1 

. 01 

.s 

, 6 

1.8 5 . 1 6,8 1,3 

. 2 

. 2 

. 1 

J uly 

1,3 

1.2 

1.1 

1.2 

1. 2 

1.4 

1.2 

1.0 

, g 

. 9 

.a 

.a 

. 7 

. 7 

.6 

,8 

. 6 

. 8 

, 8 

, 8 

, 8 

1.0 

.7 

. 8 

. 8 

. 5 

,8 

.4 

~ 

.2 

. 2 

lie an 

0.15 

.11 

. 21 

1.00 

, 53 

1 . 09 3 , 58 7 ,69 

18 .1 

J.8 7 • 76 ,45 , 7 7 

Aug. Sept. 

0,2 

. 2 

. 2 

. 2 

. J 

. 5 

.4 

.6 

,9 

.a 

, 8 

, 5 

, 5 

. 4 

. 5 

.. 

.6 

. 4 

. J 

. 2 

. 7 

.s 

. 7 

. 8 

.4 

.4 

.4 

,J 

, 5 

. 4 

, 3 

0.1 

,I 

,I 

.I 

,I 

,I 

.I 

. 2 

.I 

.1 

.1 

.1 

·,! ' 

.I 

,I 

.1 

.! 

.I 

,6 

.I 

1.1 2 . 6 

l.l 

·' 

. ? 

.v 1 .0 

5.8 

4,8 

Ruoott lD aore-reet 

9 . 0 

8 . ? 

H 

727 

:ll5 

80 

220 452 

1 , 110 2JO 

47 

28 

46 

Wat e r year 1940-41 . . . . . . . . . . . . . . . . . 1 , 138 . 2:5 :55 . 06 :5 .12 2,250 

Peak d1eoharse.- May 4 (2 a .m. ) :58 eeo.-rt .. ; Aug . 21 (2 p.m. ) 16 aoo.-rt.; Sept. 22 ( g p.m. ) 

32 aoo. - tt. b Stt~ge 1achargo relation affec ted b)" i c e. ~- Dis c harge l e ss than 0 . 1 aoo.-tt. on da]s tor whloh no rtgure 16 g1v on . 
RIO GRANDE BASIN 

Pri nc ipal diversions from Rio Tesuque, N. Mex . 

Records or discharge are collected tor nine ditches that divert water from R!o Tesuque. Each or these ditches Is equ!ppad with a water-stage recorder tor collecting gage-height r ecords and w!th a Parehall flume or weir . Water diverted by these ditches Is used tor !rr!gat!on In the Rio Tesuque valley . 

CaJon Grande d! tch dl verts !rom rtght bank In swt sec. 32, T. 18 N., R. 10 E., 500 teet downstream from gaging station on R!o Tesuque above diversions . Records available, 

March 1936 to September 1941. 

De La Cruz ditch diverts from lett bank In SEt sec . 31, T. 18 N., R. 10 E. Records available, June 1936 to September 1941. 

Acequ!a Madre at head d! verts from right bank In SEt sec. 31, T. 18 N. , R. 10 E. Records 

available, April 1936 to Septembe r 1941. 

Ace~u!a Medio diverts from right bank tn SEt sec. 25, T. 18 N., R. 9 E. , about 2,000 teet ownstream from gaging station on Rio Tesuque at Tesuque . Records available , March 

1936 to September 1941 . 

Hubbard ditch diverts rrom lett bank tn Ni sec. 25, T. 18 N., R. 9 E. Records ava!lable, 

J une 1938 to Septembe r 1941 . 

Mitchell ditch diverts from In!lltrat! on pipe l!ne along right bank near Nt comer sec . 25, 

1'. 18 N., R. 9 E. Records available , June 1936 to September 1941. 

Post dl tch dl verts from right bank In SEt sec. June 1936 to September 1941 . 14, T. 18 N., R. 9 E. Re co rds ava1lab1e, 

Qwi5o d! tch d! verts from right bank tn swt sec. 14 , T. 18 N., R. 9 E. Records avallable, 

uly 1936 to September 1941. 

Corral ditch diverts from lett bank In NWt sec . 14, T. 18 N. , JUly 1935 to Aprll 1941 ( dlecon t!nued) . R. 9 E. Records available, 

Several smaller ditches divert from Rio Tesuque, but no records t or them were obtained . 

Diverslona , in aore-reot, water yoe..r October 1940 to p_tombor 1941 

Oaj on De La Cruz Aoequla Aooqu1& Bubbo.rd 111 toboll foat Qwiyo Corral 11onth Or an do dttob l'ladro l1od1o d1toh ditch ditch ditoh dltob ditch 

October .•... H 4.6 7 . 5 34 0 3 2 7.3 0 1.0 

November, , • , 24 6 . 6 6 . 1 21 0 26 0 0 1 . 2 

Deoombor •• ,. 15 0 0 20 0 20 0 0 0 

Janua.ry ••.. • 12 0 0 23 0 30 0 0 0 

february • .. . 16 0 . 6 19 0 21 0 0 0 

l'!.aroh •••••• • 20 0 1.6 3.6 0 32 0 0 0 

April. •.•.. • 30 0 43 16 S . 7 42 1.6 1.2 aO 

May ••••••• •• 6B 21 94 7S 6 . 0 36 13 6 . 1 - Juno •• .•... , 62 45 134 155 3 .0 33 29 19 - July . •• ••••• 41 42 190 134 19 32 53 21 - August ... ... 36 26 128 74 22 3~ 23 4.6 - September . . , 42 8 . 7 38 56 3 . 4 3S 7 . 9 6 . 7 - Tho year 39S 163 643 634 61.1 373 136 68 .6 2 . 2 or period. .. 

a Apr. 1- 9 , dlaoontlnuod , 
244 RIO GRANDE BASIN 

Principal diversions from Rio Po joaque, N. Mex. 

Records or discharge are collected tor six ditches that divert water from Rio Pojoaque between confluence or Rio Tesuque and Nambe Creek and village or San Ilde!onso. Each 

~c~~~e~~t;r~~ !s~~~~~~~dfi~ ~r~~!~~s~~e~~~~~~ie~ ~yc~~;:;t~~c~~e~~e~~~~ t or irrigation on each side or Rio Pojoaque, mostly along lett bank. 

Del Barranco ditch dive rts !rom lett bank in NEt sec. 12, T. 19 N., R. 8 E. Gage is 

1,800 teet downstream !rom head gate . Records include seepage in!low !rom a drain 

ditch . Records available, May 1936 to September 1941. 

De La Otra Banda ditch diverts from right bank in SEt sec. 11 , T. 19 

ava!lab1e , Miiy 1936 to September 1941. 

R. 8 E. Records 

Rancho ditch diverts rrom lett bank in swt sec. 11, T. 19 N. , R. 8 E. Records available, 

Aprll 1936 to September 1941 . 

De Los Indios ditch diverts from lett bank in SEt sec . 10, T. 19 N., R. 8 E. Records 

ava!Iab1e, Miiy 1936 to September 1941. 

Well ditch supplied by now entering pipe line laid in bed or Rio Pojoaque along lett 

bank In NEt sec. 9, T. 19 N. , R. 8 E. Records available, June 1938 to Septembe r 1941 . 

Ortiz ditch diverts from lett bank In NEt sec. 9, T. 19 N. , R. 8 E. Records include water diveHed !rom We ll ditch, not included in records tor that ditch. Records available, 

April 1936 to April 1941 (discontinued) . 

Several smaller ditches divert !rom Rio Pojoaque , but no records tor them were obtained. 

Dlverslona , ln acre-teet, water year October 19'0 to September 194.1 

l1onth Dol Barranco Do La Otra Rancho Do Loa Indica Well Ort1• <11toh Banda d1 toh c11tch ditch 4 1t ob dltoh 

October . ...... 3S 31 17 Q. 7 74 0.4 November • .. ... 48 13 4.2 4.0 43 0 December .....• 25 44 5 . 6 0 10 0 J a.aua.ry 4 •••••• 25 4 . 6 1.8 0 3 . 6 0 February • • •• . • 28 28 7. 9 0 12 0 1'farob • . •••. . • • 49 34 22 0 0 0 Apr il . .. ... .. . 51 ~ 11 15 40 aO ftq .... . ...... 65 163 68 139 131 - Juno ••.• .... .• 136 155 96 92 151 - July .... .. . . .. 93 U3 71 106 161 - Auguat •. . ....• 58 81 47 35 161 - September .. ... 51 25 21 15 111 - The year or period .. • 666 775 372 416 898 .. a Apr. l -lOJ cllaoont1nuod. 
RIO GRANDE BASIN 245 

Santa Fe Creek near Santa Fe, N. Mex . 

Location.- Water-stage recorder and sharp-crested concrete control, lat. 35°41', long . 105"60 ', in swtswt sec. 24, T. 17 N., R. 10 E., 300 teet downstream rrom upper storage reservoir or New Mexico Power Co., and 6 miles east or Santa Fe. 

Records rallable .- May t o June 1910 (at site 3 c lles downstream), April 1913 to Decem er 1914 (at site 2 miles downstream) and October 1930 to September 1941 in 

reports or Geological Survey. January 1913 to November 1930 (at site 2 clles downstream) and November 1930 to .December 1931 in reports or State engineer. 

E:xtremes.- Maximum discharge during year, 165 second-reet May 14 (gage height, 2.53 

feet); minimum dally, 1.5 second-reet Oct. 4-7. 

1930-41: Maximum discharge and gage height, those or May 14, 1941; minimum dally, 0 .6 second-root Nov . 13, 1933 . 

Remarks.- Records good except those ror September, Which are poor. No diversions above gage. 

Discharge, in second-teet, water year October lG40 to Septe11ber 19U 

Da Oct. Nov . Dec . Jan . Feb . War. Apr. w .. y J une July Au&. Sept . 

1 1 . 7 2.5 2.1 3.0 2. 5 8.1 27 63 7l 28 11 7. 2 

2 1.7 2.5 2.1 3.8 2. 5 8.1 24 94 70 25 11 7.2 

3 1.7 2. 5 2.1 4.5 2.5 8.1 22 84 68 25 10 6.9 

4 1.5 3 . 0 2.3 4.7 3.0 9.9 20 77 62 23 8.3 6.9 

5 1.5 4.6 2 . 3 4. 7 4 .o 11 2l 75 63 21 7.9 6.9 

6 1.5 4.5 2.3 4.7 4.5 11 22 88 61 22 7.9 

7 1. 5 4.5 2.3 4 . 7 4.5 11 22 100 60 20 a7 .8 

8 1.7 4. 5 2.3 4. 7 • . 5 11 21 98 59 19 a?.B 

9 1.9 •. 5 2.3 •. 7 4.5 11 2l 110 54 18 a7.7 

10 2.1 4 . 5 2.3 4. 7 •. 5 11 24 117 47 17 a?. '7 

ll 2 . 3 4.5 2.3 4. 7 4.5 11 23 130 42 17 7.6 

12 2.5 4 . 5 2.3 4. 7 4.5 11 26 138 37 16 7.6 

13 2.7 •. 5 2.1 •. 7 •. 5 11 30 151 36 14 7 . 6 

14 2.7 4. 5 2.1 4. 7 • . 5 ll 28 144 37 13 7.6 

15 2. 7 4. 7 2.1 4. 7 4.5 ll 27 12-4 dO 13 7.5 

16 2 . 7 •. 7 2 .1 4.7 4.5 9.9 26 110 a40 12 7 . 6 a6.5 17 2 . 7 4. 7 2.1 3 . 3 •• 5 8 .7 27 100 &45 ll 7.6 

18 2.7 4. 7 2 . 1 2.1 4 . 5 8.7 26 98 a45 13 7.6 

19 2 . 7 4.7 2.1 2.1 •• 5 8.7 24 95 a 50 ll 7.6 

20 2 . 7 4.7 2.1 2.1 4. 5 8 . 7 22 83 a 50 12 7.6 

21 2 . 7 4.7 2 .1 2.3 •. 7 9.0 20 74 a 50 ll 7.6 

22 2.9 3.5 2 . 1 2.3 4. 7 9.3 17 74 a 50 12 7.6 

23 2.7 2 . 5 2 . 1 2.3 •• 7 9.6 18 7l 50 12 7.6 

24 2.7 2 .5 2 .1 2 .3 5.7 9 . 9 17 70 50 11 7 . 6 

25 2.5 £.3 ::! .1 2 . 5 8 . 1 13 20 70 52 10 7.6 

26 2.5 2.3 2 .1 2.5 8.1 1.8 25 73 48 10 7.6 

27 2.5 2.3 2 . 7 2.5 8.1 17 40 76 43 10 7.6 

28 2.5 2.3 3 . 0 2 . 5 8 . 1 17 46 76 41 10 7.6 25 

29 2.5 2.3 3.0 2. 5 20 44 74 38 ll 7.6 32 

30 2. 5 2 .3 3 . 0 2.5 22 46 7l 32 12 7. 6 26 

31 2.5 3.0 2 . 5 24 7l 11 7.2 

Second- Maximum Wini•WI lloan Runoff in Wonth root-da.ya acre-teet 

October .. .. ....... ......... ........ 71.7 2.9 1.5 2 . 31 142 

110.7 4. 7 2.3 3.69 220 November ....... . ........ ........... 71".1 3.0 2 . 1 2.29 141 December ............. .. ····· ····· Calendar year 1940 . . .. ..... .... .. .... .. 2,666.3 30 1.5 7 . 28 5,290 

January .... . ... . ... 108.7 4. 7 C.l 3. 51 216 ... .............. 134.2 8. 1 2.5 •. 79 266 February .... .. ······· ··· 368.7 24 8 . 1 11.9 731 Waroh ...........•.•. ... ·· ···· ·· ..... 46 17 25 . 9 1,540 April. ..... . .. . .••. . . ~ ... .. .. 776 

May . ······· .. .. 2,879 151 63 92.9 5,710 

June .. 1,491 7l 32 49.7 2,960 ....... .. ..... 468 28 10 15.1 928 July ... .........•..•... ................. .. 245 . 3 11 7 . 2 7 . 95 489 August . .. . .. . . . . . ... . .. .. ......... 261.1 32 8 . 70 518 September . . ....... .. .. ·· ···· ·· ··· Water yea r 1940-41 6 , 986.5 151 1.5 19.1 13 , 861 ... .. a NoJage-ho1ght record; diaOOa ~o ooaq>ute4 on baaia or weather roc.orda, recorda tor Rio Santa Oruz 

at Oun yo , and notea by engineer or Now J1ex.1oo Power Co, 
246 RI O GRANDE BASIN 

San Fel i pe east side acequla near Domir~o , N. Mex. 

Location .- Water-stage recorder, In NWtSEt sec . 23, 1'. 15 N., R. 5 E. , a s i phon or santo Oom tngo east riverside drai n, 50 tee downstream rrom head ga e , thr ee-quarters or a mile west or San t o Domingo Pueblo , and 3 miles west or Domingo . Records available .- May 1936 to September 1941 . Remarks .- Acequla d l ve r ts wate r from lert bank or PJo Grande t or 1 r r lgatlon between Santo ---oomTilgo and San Fell pe Pueblos. 

D1vera1on, 1,.n acre - ree t , water yea r October 1940 to Sept embe r 1941 

Oc tober . . . . . 54 November•. . ... 4:5 

Deceober.. . . . 0 January . .... . 0 Pebru&ry.... . 109 March.. .. .. . . 345 

April... . . . .. 860 lla7·....... .. 492 June . . . ..... . 626 J.Ur... . . .. . . 102 Aue,-uat . .... .. 0 Sept embe r . . . . 43 

Weter year 19 40- 41 ..... .. . ... . . J 2 , 67:5 

Jemez Creek near Jemez , N. Mex . 

Location .- Wa ter-stage r ecorder, lat . 35°39 ', long . 106°44 ' , In SEtNE sec . 32, 1' . 17 N., R. 2 E., 700 teet ups tream !rom divers i on dam or Jemez west s ide and Jemez east side 

ditches, 1 mile downstream !rom Ri o Guadalupe , a nd 4 miles north or Jemez. 

Recor ds available .- June 1936 t o May 1941 (destroyed by !lood ) . 

Extremes.- Maximum d ischarge r e corded during period , 3, 590 second-t eet May 6 (I>BB'! height, 7.9 teet); .mi nimum da lly, 17 second- t eet Dec . 16 . 1936-41 : Maximum d ischarge r ecorded, tha t or May 6, 1941 ; mlnlmum da lly, l2 second-

!ee t July 12, 13, 1939 . 

Remarks .- Recor ds good ! or October to February, others !air . Several diversions !or ---riTrgatl on upstream and downstream f rom s tation . 

Discharge , in second-t eet . wa t er year Oc t ober 1940 to SepteiDber 1941 

Day Oct. Nov . Dec . Jan . " Feb . War . Ap r. Way June July AU & . Sop\ . 

1 30 2? 3 2 41 37 81 342 2, 240 

2 30 27 31 38 35 85 275 2 , 670 

3 30 29 31 b26 38 76 259 2 , 390 

4 29 30 29 b20 36 71 250 2, 520 

5 29 • 29 31 b28 37 85 3 ll 2 , 160 

6 36 29 33 • b35 37 7 8 301 2 , 800 

7 36 27 30 32 H 85 30 1 

8 30 27 31 35 40 57 363 

9 30 29 31 35 38 81 419 

10 30 29 37 33 41 72 535 

11 30 23 3S 38 38 72 495 

12 29 b22 45 44 .. 81 555 

13 2? b20 37 41 40 83 615 

14 27 b18 29 38 40 87 555 

15 27 b22 22 41 .. 87 615 

16 27 b24 • bl7 b34 51 81 665 

17 26 b25 32 b2? * 53 93 765 

18 26 41 35 b32 57 107 720 

19 26 65 30 b41 64 1 26 555 

20 25 43 27 41 69 174 467 

21 24 <5 b29 <0 78 198 447 

22 25 43 32 35 74 172 3S9 

23 25 <5 33 <l 91 182 363 

24 26 <l b39 b35 85 221 400 

25 26 • 37 b43 H B9 188 535 

26 25 33 33 38 71 alSO 74 2 

27 27 36 b30 Hl e: ol50 1 , 130 

28 33 27 <O <l 54 al70 1 , 530 

29 33 33 40 b51 • 200 1 , 840 

30 32 33 41 <5 a230 2,240 

31 30 48 <1 275 

Wontb Second- Maximum Win i~r~um Moan Runotr in toot-day s ao re-reet 

October . . . . . ... . . 886 36 24 28.6 1, 760 

November ......... . .. .......... 949 65 1 8 31. 6 1 , 880 

Decembe r . . ..... . . . . . . . . . . . . . 1 , 036 48 17 33. 4 2 , 050 

Calendar year 1940 . . . . . . . . . . . 19 , 977 396 15 54 . 6 39 , 6 20 

January ..... .... ....... ... ... 1 , 15 2 51 20 37 . 2 2,2""10 

February ..... .. ..... .. .... ..... ............ 1 , 4 9 6 91 35 53 .4 2 , 970 

March . . . .... . ... .... ... ................ . 3 , 91 8 275 67 126 7,770 

April .. . . ..... ...... .. ................. 18 , 969 2 , 240 250 632 37 , 620 

Way 1-6 ... . ........ ..... ............ 14 . 780 2 , 800 2 , 160 2 , 463 29 , 320 

J une . .. .. ..... ...... ... ....... ·· ·········· J.Uy . .. .. .. . August .. ... . ... ...... .... .... September ... ...... .. .... .... .. 

Water year 19<0-41 .. . . . . . . . . .... 85,650 

• Wlnter cH s charge mea surement made on this day . 

. No gage- heigbt record; discharge compu ted on baala or records for Ri o Guadalupe near Jeme z Sprlnga. 

b Stage- d1acha rge relation arrectod by lee. 
R I 0 GRANDE BAS IN 

Jemez Creek at San Ys!c!ro , N. !1ex . 

Location .- \later-stage recorder upstream trom d!vers!on dam or Z!a d! tch, lat . 35°34 

long . 106°45 ', !n sec. 32, T. 16 N. , R. 2 E., !n San Ys!dro Grant , a quarter or a m!le northeast or San Ys!dro and 2t miles upstream trom R!o Salado . 

Records available .- May 193? to May 1941 (des royed by tlood}. 

Extremes .- Maximum discharge dur! ng per!od , 4, 100 second- teet May? (gage he i ght , 6 . teet) , trom rat! ng curve extended above 2 , 800 second-!set on bas!s or slope-area detenn!na !on at gege he !ght 6 .30 teet; m!n!mum dally , 12 second- teet Nov . 15. 193?-41: Maximum discharge, 4, 100 second-teet July 28 , 1939, and May 7 , 1941, by slope-area method ; maximum gege he ight, 6 .30 teet July 28, 1939; m1n1mum dally discharge , 0 .? second-root Sept . 25, 1939 . 

Remarks.- Records poor . Discharge Includes !low d ive rted by Z!a d!tch . Several d 1 vo --sronB tor 1rr1gat1on above and below station . 

Discharge , in second-teet . wa ter year October 1940 to Septembe..r 1941 

Dill Oct. Nov . Doc . Jan . Feb. Mar. Apr . llay June July Aug . s. 

1 31 2-l 49 52 46 75 &350 2,450 

2 31 22 37 47 42 103 o300 2,700 

3 32 25 34 37 47 97 o2BO 2,630 

4 33 25 31 24 45 79 e~OO 2,900 

5 33 28 32 34 46 114 e350 2,450 

0 33 24 35 46 46 108 e310 2 , 890 

7 33 22 34 35 52 120 342 2 , 960 

8 33 22 34 37 50 87 386 2,700 

9 33 28 34 38 48 97 e440 2,580 

10 33 34 4 2 40 49 75 e550 2 , 720 

11 32 31 48 44 48 79 o500 2,540 

12 3 2 24 51 50 51 91 e600 3,170 

13 31 b22 49 47 48 103 o550 

14 30 blB 38 44 48 120 514 

1~ 30 b12 33 46 50 108 a550 

16 29 b18 21 40 54 91 o600 

17 29 b22 40 34 58 114 o650 

18 29 b35 45 30 50 132 o700 

19 28 120 39 .. 7 1 o150 792 

20 28 79 33 47 58 o200 708 

21 29 61 34 46 85 o 220 526 

22 29 65 37 40 85 o200 490 

23 28 57 4l 46 103 o220 466 

24 29 65 48 35 o90 e240 466 

2~ 27 43 59 49 o100 220 502 

26 26 39 46 43 oOO 220 736 

27 29 47 40 45 62 212 el, OOO 

28 31 36 48 48 62 204 el, 400 

29 30 44 47 68 212 el, 700 

30 29 46 49 54 240 e2,000 

31 27 56 50 200 

Won th root-days 

Second- Maximum Winh1u.m lie an ~~~il 

October . ....... . ..... 937 33 26 30.2 1,8 

1,138 1 20 12 37.9 2,2 November ···· ·· ···· 1, 264 59 21 40. 8 2 ,5 Oece11ber ······ .... 

Calendar year 1940 ............... 18,484.5 4SO 1.5 50. 5 36 , 6 

------- - ------ January . . ············ 1 , 342 68 2-l 43.3 2,6 

February l, 694 103 42 60 . 5 3 , 3 

Warch . •• 611 2llO 75 149 9 , L 

Aprll 19 , 158 2 , 000 280 639 38, 

llay 1-12 32,770 3,170 2,4 50 2, 731 65,0 

June . July . .. ···· ······ August .. 

September 

The period ........... . ············· 194 .a; 

: ~=~==~:~~=~~= ~:1:~k~~ 1nd:~e~l:t!~ diecharge computed. on bash or records ror et.tlon n 

Jeme~ and intervening d.lverelone. 
RIO GRANDE BASIN 

RIo Las Vacas near Cuba, N. Mex . 

Locatlon. - Water-stage recorder, lat. 35°58'' long. 106°47 '' ln sec . 13, T. 20 N., R. 

l ~-' 600 teet downstream !rom RI to Penas Neg ras and 10 mlles southeast or Cuba. 

Records avallable .- December 1938 to July 1941 (discontinued). 

Extremes.- Maxlmum dlscharge urln~ perlod, 1,5:30 

teet) ; m1n1mum dally, 0.7 s econ -root Nov. 14, 

second-teet May 13 (gage 16 . height, 3.35 

1938-41: Max1mum discharge that o! May 13, 1941; m1n1mum dally, 0.2 second-toot 

Oct. 5, 1939 . 

Remarks.- Records good tor Aprll to June, others !a1r, except those tor periods or lee 

-ermt and no gage-height re cord , which a r e poo r . several small d1 versions upstream and downstream !rom station. 

Oiaohar&e . in second-teet , water yea r October 1040 to September 1941. 

Day Oct . Nov . De c . Jan . Feb . Mar . Apr . llay June July Au& . Sept . 

1 ~.7 l.P 1.9 ~ b~.l bll .. ~4~ ~60 64 

2 ~ 1.9 1.9 b4.0 b2 . 6 10 40 U7 5~6 ~7 

3 5.6 2.1 1 . 9 b~.o b~.o blO ~7 ~76 ~~~ 51 4 4.~ 2.6 2.1 a2.5 b~.l bl.l ~7 ~90 516 63 5 ~ 1.9 2.1 a3.0 b3 . 6 12 ~7 424 .so 67 

6 10 2 .1 2.1 a3 .5 b3.5 bll 37 6~ · 506 4P 

7 5 . 0 2.~ 2.1 .~.o 4.3 bl~ 40 726 601 42 8 

··~ 2 .6 2 .1 ~.1 4.0 blO 46 816 466 ~ 

9 ~ .. 2.6 2.1 ~.4 b4.0 bl.l 67 900 ~52 

10 2. 8 2.3 2.1 ~.4 4.~ b9.~ 76 POO 274 

11 2.6 1.2 2.3 s .1 4.~ b11 6P 1,040 246 12 2.~ 1.2 2.6 s.1 4.7 10 74 1,060 26P 

13 2 . 1 1.0 .~ s.1 4.~ H 74 1 , 160 ~33 

14 1.9 .7 2.6 s.1 4.7 12 6P 1,080 ~16 

15 1.9 .7 b2.~ ~.1 5.0 12 64 9 40 so~ 

16 1.7 .e b2 . 0 b2 .9 6.6 b13 107 828 280 17 1.7 1.0 b2 . 5 b2 . 7 5.~ bU 128 786 274 18 1.5 1.2 3. 1 b2.0 7.2 bl2 117 812 26P 

19 1.~ bl. 5 3.4 b2.0 6 . 2 bH 98 724 2 48 

20 1.3 1.9 ~.1 b2 . 5 8 .2 b18 90 5~ 22~ 

21 1. ~ 1.9 3 .1 3.1 8 . 2 2l 79 16 200 

22 1.~ 1.7 3.4 b2 . 6 b8 . 0 16 71 572 214 

23 1 . 2 1.7 ~ .. s.1 8 .2 21 71 ~68 178 

24 .~ 1.9 ~-4 b2 .5 .~ 20 90 616 166 25 1.2 1.5 2.8 3.1 11 27 114 625 142 

26 1.2 2.1 ~-5 3.1 1>9 .5 22 146 685 117 

27 2.3 1.7 4.3 b2.7 b9 . 0 b20 204 670 110 28 3.4 l.P 4.3 3.1 b10 18 227 6~2 96 29 3. 1 1.P ~ ~-1 21 274 618 81 so 2 . 8 l.P b4.0 ~-1 25 ~3~ 602 6P 31 2.6 4-~ ~.1 40 625 

Month SeooDdtoot-da7a llaxiiiUa IUniiiUa lie an Runotr in acre-teet 

October . . .... • . .... .. ........... .. ........ . November .... . . . ..........•. .•.••.•• .•• ..... 

December . . ... · .. . ..... . . . ........ . 

Calendar year 1940 .. ..........•..•.... 

January. . ..... . .. . .. .•. . •..•..•.... 

February . . .. .......•.......... . .. •. .•... . 

March ........•.....•... . .• .. .. . ... ......... 

April ........•..•..• . .•..•..•. .. . ... •...... llay . ...............•..•..•.... . ..... ....... 

June .. . .............. .... .... .. . . .. ....... . 

Ju.ly 1-8 ... ........................... · .. · · AU&USt ........ •. ...• . . •..•.. . .......•..... 

5,870.5 

93 . 3 167 . 5 491.3 2 , 961 21 , 64.1 8 , 862 

•21 

10 

2.8 

4.~ 

176 

- 4.3 

ll 

40 

33~ 

1,160 560 

67 

1.2 2.96 182 .7 1.7~ 103 1.9 2 .62 173 

.4 16 . 0 11,650 ------2. 0 ~-01 186 2 .8 5 . 98 332 ~ 15.6 974 37 99 . 4 5 , 910 3 46 6P8 42,020 69 295 17, 560 56 52.6 635 

September ............. , .................... f-----t-----+----+------JI--:6o:-P:': ,

1

:":

9

c:-

Tho period ...... ... 0 . .......... . ......... . 

a lo gage-height record; cHschargo eo:~~;pute4 on bash of weather r ecords and racords for Rio Guadalupe near Jemez Springs and. Jemez Creek near Jemez Springe. 

b Stago-<11achargo relati on arrectod by lee. ~- Discharge tor Jan. 8 to Feb. 6 computed on beals or tw1ce -<1a1ly starr readings. 
RIO GRANDE BABIN 249 

Rio Guadalupe near Jemez Springs, N. ~x. 

Location .- Water-stage recorder, lat . 35°42 ' long. 106 °46 ', in Canyon de San Diego Grant, 3 miles upstream tram mouth , and 5t miles southwest ot Jemez Springs, Sandoval 

County. Prior to May 9 , 1941 , at datum 1.5 teet higher. 

Records available.- December 1938 to September 1941. 

Extremes .- Maximum discharge during year 1 3 , 190 second- teet May 13 or 14 (gsge height , 6 .4 feet, tram highwater mark in wellJ, fran rating curve extended above 1, 000 

second-teet by logsrlthmlc plotti ng; mlnlmum daily, 5 .6 second-teet Dec . 16 . 1938-41: Maximum discharge , that or May 13 or 14, 1941; mlnlmum dally, 4 .2 

second-feet Dec. 27, 1939 . 

Remarks .- Records good except those tor May and pe r l ods ot no gsge-helght record , v.hlch 

----are?alr. Diversions above and below statlon tor lrrlgstion. 

Oischar&e . in second-feet, water year October 1940 to September 1941 

D&y Oct . Nov . Dec . Jan . f'eb . War . Apr . Way June July Aug . Sept . 

1 12 12 11 17 15 H 210 679 728 102 33 25 

2 13 12 10 15 14 43 174 1,140 634 97 32 23 

3 H 11 10 9.5 15 40 160 677 594 90 34 24 

4 14 12 10 7.0 15 3e 153 1,080 586 87 35 22 

5 13 11 10 10 16 43 172 922 586 100 36 20 

6 16 10 I"2 15 16 36 164 1 , 390 556 a91 34 21 

7 16 11 10 12 20 42 160 1,700 574 62 45 20 

8 14 10 11 14 19 36 166 1,560 570 76 47 19 

9 14 11 12 15 18 41 227 al , SOO 472 72 58 18 

10 13 12 14 15 19 38 272 al,SOO 364 67 66 16 

ll 12 8 . 5 13 17 19 38 245 d,900 336 59 •• 16 

12 12 8 .0 13 18 22 45 276 e.2,000 339 91 46 16 

13 12 7 . 3 12 17 22 46 275 a2, 100 369 65 50 21 

14 12 6.2 10 15 21 46 252 al ,900 367 59 45 30 

15 11 7.6 7.3 17 25 •• 290 ol,500 339 72 59 54 

16 10 9.5 5 .6 13 28 44 328 al ,300 324 78 45 30 

17 10 9.5 11 9 . 0 29 55 393 al,200 310 64 40 24 

18 10 12 12 10 32 88 3 48 al, 200 302 66 35 23 

19 11 18 11 17 35 62 270 al,OOO 276 55 28 23 

20 10 12 10 17 37 93 232 a900 252 so 26 25 

21 10 19 10 17 4 2 97 230 a BOO 230 64 30 25 

22 10 17 12 12 41 89 216 a620 230 55 29 76 

23 10 17 13 17 47 96 212 600 222 46 27 124 

24 10 18 16 12 45 116 ::49 626 193 45 28 46 

25 10 H 16 17 45 97 320 610 163 42 27 33 

26 10 11 1 2 H 36 89 411 636 159 a40 25 28 

27 10 H 10 1 5 33 65 559 655 148 42 23 26 

28 14 9.5 15 17 54 95 673 792 155 44 22 28 

29 13 1 2 16 16 - 109 766 764 118 a40 3 2 146 

30 12 12 16 17 - HO 29 715 106 a36 40 106 

31 12 - 17 17 - 167 - 724 - 52 33 -

Month Second- Ma.xl•UII Miniau. lie an Runoff in toot -<lays acre-feet 

October ..... ·········· . . .. . .... ..... ..... 374 16 10 12.1 742 

November ..... ..... ... . ............. . ..... 554.1 19 6 . 2 u.s 702 

Oeoe•ber ...... ........ .... ..... ... ........ 367.9 17 5 .6 11 . 9 730 

- - ----- ------ ----- - --- --- ----- - Calendar year 19-40 ................... .. 10 , 300.4 165 5.6 28.1 20 , 440 

------- -- ---- --- --- -- ---- - ----- January . ............ ........ .....• .. . . .. . . 452. 5 18 7.0 14.6 898 

Pebruary .. ... .... . ....... ....... ... . ····· 762 47 14 27 . 2 1,510 

March . ........... . . • .. 2,161 167 36 69 . 7 4 , 290 

Ap rU . .....•.•••...•..• ::: ::::: : :: :::: : :: : : 9,254 629 153 308 18,360 

ll&y • ••••• •. •• . •••.• •. •• . •••• •••• • . •• . ..... 36 ,91 2 2; 100 715 1 , 191 73,210 

June .. . . .... ... . ..... . •..... ..... 10,646 728 106 355 21 , 120 

July . ... .• .. .••... . •• • •.••.•••..•• ::::::::: 2,041 102 32 65.8 4 , 050 

August .. ....... . ...... ....... ... 1,156 66 22 37.3 2 , 290 

September . ............. ..... .. .. .. .. .. . 1 ,11 2 146 16 37.1 2, 210 

Water year 1940-41 ......•. ...•........ . 65 , 592 . 5 2,100 5.6 1 80 130,100 

Peak d.leoharge.- Sept. 22 ( 6 p.m.) 321 eeo . - rt.; Sept. 22 (9 p.m.) 492 aeo .-rt.; Sept. 29 (5 p.m.) 

-
50 RIO GRAN DE BASIN 

Diversi ons !rom Jemez Creek, N.Mex. 

Records or discharge are collected tor five dl t ches that dive1·t water !rem Jemez reek be tween Rio Guadalupe and the village or San Ys i dro. Each or these ditches i e ~ui pped wl t h a water-stage reco rder tor collecting gage-height records and a Parshall 

lume. Water dive rted by these ditches Is used for i rri gation In the valley or Jemez 

reek. 

3mez west side ditch dive rts ! rem right bank in NWt sec . 33 , T. 17 N., R. 2 E. (pro- j ected) . Gage Is 3 , 000 t eet downstream from Jemez d i version dam. Records a va ilable , April 1936 to Septembe r 1941. 

~mez east side ditch dive r ts from left bank in NWt sec . 33 , T. 17 N. , R. 2 E. (pro- jected) . Gage Is 4,500 teet downstream from Jemez diversion d m. Re co rds available , Apr il 1936 to Septa be r 1941. 

1ton1o Pecos di tch d ive r ts from left bank in NEt sec . 16 , T. 16 N., R. 2 E. (proJected ) . Gage Is 2, 500 t eet downstream from head gate. Records ava1lable , June 1936 to Septembe r 1941 . 

l.ll Ysidro ditch diverts !rom ri ght bank In NWt sec. 29 , T. 16 N.i R. 2 E. (proJected). Oage Is 6,000 t eet downstream from head gate. Rec ords availab e , July 1936 to Septem e r 1941 . 

Ia ditch d iverts from le tt bank in NEt sec . 6 , T. 15 N. , R. 2 E. (proJected). Gage is teet downstream rrom Zl a di version dam . Records available , June 1936 to Septembe r 1941. 

Diversions# in aero-teet, water year October 1940 to September 1941 

Month Jemez weat Jemez east Antonio Pecos San Yaid.ro Z1& 

alde ditch aide ditch ditch ditch d1teh 

October . ... .. ... 484 270 H 128 99 November .. . ..... 67 180 ll 108 8 .7 Decomber .. .. . . .. .8 0 l.B 99 0 January . .. ...•.. 5.6 0 4. 6 25 0 February ..... . .. 2 .6 0 .. 0 0 Karch ••.•... .•. . 0 0 1.2 1 21 April .. . .. . .. . .. 2.8 1.4 2 .8 . 2 260 lla7· ..... . ...... 17 u 201 64 43 Juno . • . . ... . •. •• 482 1S7 273 246 63 July . .•...... . .. 921 291 207 14~ 3:16 August .. •.••.••• 760 237 219 164 199 September ..•• . . , 636 112 32 48 168 

The year ...... 3, 278 1,:no 998 1,021 1,197 
RIO GRANDE BASIN 251 

Ri o Puerco at Rio Puerco, N. Mex . 

Location .- Water-stage recorder and concrete control , lat. 34°47'35", long . 106°59'15", 

In Wt sec . 31 , T. 7 N., R. l \1,, In hamlet or Rio Puerco I n San Clemente Grant, at Atchison , Topeka & Santa F'e Railway bridge 7 miles downstream rrom San Jose River. 

Drainage area .- 5,160 square miles. 

Records available .-Septembe r 1910 to October 1911 , August 1912 to December 1914 (records 

f ragmentary , e;age heights only pri or to March 1913) and March 1934 to September 1941 In reports or Geological Survey . January 1913 to December 1925 and September 1926 to December 1927 In reports o! State Engineer. 

Averne discharge.- 16 years (1913-17, 1919-20, 1921-24, 1926-27, 1934-41 ) , 111 second- eat. 

Extremes.- Maximum discharge during year, 16,900 second-teet Sept . 23 (gage height, 5 .37 ree t), !rom rating curve extended above 2,500 second-teet by logarithmic plotting on basis o! co'!lputatlon or !lON over dam at gage height 7 .24 teet; no !low at times. 1934-41: Maxlmu.'TI discharge, 26 ,300 second-teet Aug. 21, 1935 (gage heigh t, 7.24 teet) , by computation or !low ove r dam; no !low at times. 

Re:narks .- Records poor. Several dlvdrslons above station ror Irrigation . 

Discharge , in second-feet. water year October 1940 to September 1941 

1 

2 

3 

4' 

5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

2'7 

28 

29 

30 

31 

Oc t . 

3eo 

39 

62 

3 ( 

16 

11 

7 

2 

8 

4 

1 

0 

20 

16 

5 

2 

1 

1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Nov . 

0 

0 

0 

0 

0 

1 

1 

1 

1 

1 

0 

0 

0 

0 

0 

0 

0 

1 

1 

26 

10 

H 

u 

H 

26 

24 

20 

16 

10 

10 

Dec . 

9 

6 

2 

1 

0 

1 

0 

0 

0 

1 

1 

1 

1 

2 

1 

0 

0 

2 

0 

0 

0 

0 

0 

1 

42 

18 

6 

6 

3 

1 

1 

Mon t h 

Jan . 

7 132 

66 

52 

20 

3 

2 

9 

53 

1eo 

31 

12 

10 

6 

6 

2 

2 

1 

1 

1 111 

Feb. 

103 

36 

3 ( 

26 

26 

6 

6 

5 

4 

4 

4 ' 

23 

75 

us 

375 

510 

489 

260 

489 

390 

SM 

528 

366 

406 

196 

250 

80 

Oc tobe r ........... . .... . ..... . • .. •........ . Nove11ber ...... . . . .......••.• . .••.• . .• ..... 

De ce•ber .......... ..... .... . . 

Ca lendar year 1940 

Janua ry . .. .................•............... February ........ .... . . . Ma rch .......... . ........... .• ..... . April .. . .. . ..............• .. . . .. . .. May ... ........ . ...... . .. . .............. . June ..... . ................ . .... .. . Ju l y ............•.......• . .•..•..•... . ... Augue l . ... . .......... . ..... .. . September . . ... . ... .. . . ....... . . 

War. Apr . May 

52 

42 

119 

132 

66 

HO 

132 

112 

220 

119 

58 

3 ( 

28 

36 

leo 

58 

569 

a5eo 

a3eo 

•200 

&160 

a250 

a350 

a500 

a6eo 

515 

438 

162 

58 

52 

(8 

Second- toot-days 

529 187 10( 

21 ,689 

654 5,397 

6 , 250 

2 , 989 30 , 705 

6,580 754 3 , 786 14, 652 

58 

66 

112 

119 

80 

52 

66 

70 

66 

52 

42 

48 

70 

93 

138 

leo 

52 

42 

~5 

(8 

4H 

1 , 460 1 , 8eo 1 , 570 4 , 990 

1 , 240 924 

826 

715 

730 

730 

610 

610 

7eo 

655 

625 

55( 

502 

489 

489 

48 540 48 1 , 960 112 2,030 66 2 , 370 80 778 

204 

2'70 

280 

240 

222 

580 

366 

320 

280 

( 38 

310 

3eo 

26 

42 

2 , 580 

132 

554 

669 

280 

' , 990 l , 130 

93 

0~ 

7 , 340 

June 

310 

•500 ~~ 260 

240 ~~~ 1 , m 

171 

119 

86 

58 

86 

11 

119 

1~~ 

106 

ii 

~~ 17 

11 

86 

a.O 

a 3C 

a2C 

Mini mUll 

0 

0 

0 

0 

1 

4 

28 

42 

280 

20 

0 

0 

0 

July Aug . Sep t . 

al5 

alO 

a5 

a5 

a30 

a20 

al.5 

alO 

aS 

a40 

0 

0 

0 

22 

alO 

al 

aO 

0 

16 

846 

541 

36 

6 

8 

20 

1 

0 

0 

0 

0 

0 

0 

0 

13 

26 

55 

48 

1 , 030 

126 

66 

0 

0 

0 

1 

93 

a20 

1 

0 

1 

86 

93 

62 

18 

15 

22 

28 

ll 

80 

al5 

as 

aO 

Mean 

17.1 

6 . 2 3. ( 

59 . 3 

21.1 

193 

202 

99 . 6 990 

219 

24 . 3 

122 

488 

262 

181 

317 

58 

12 

75 

26 

16 

320 

2'70 

189 470 

'8 36 6 7 , 340 1 87( 

0 86 

• 15 0 9 0 16 0 2 , 200 

4 2 , 770 

10 

Runoff i n acre-tee t 

1,050 

371 

206 

43 , 030 

1 , 300 10 , 700 1 2 ,.00 5 , 930 60 , 900 13 , 050 1 , 500 7 , 510 

29 , 060 

Wate r yeo.r 194G-41 .......... . 72 , 587 7 , 340 0 199 144 , 000 

Peak d1eobarge . - "•1 5 , _! 8 a.a. ) 11,100 eeo.-rt .i r:a:r 22 (1 5,040 sec.-ft.; lug . 13 (6 a .m. ) 6 ,490 eeo .-rt. ; :se pt. 23 (3 5 , 620 e ee .-rt . 

p . m. 1 5 , 620 sec.- ft. ; A\:g . 10 (8 p . m. } p . m. ) 16 , 900 aee . -tt. ; Sept . 30 {1 a.m . ) 

a lfo p ge-belgbt roeordj dhoba_rge computed on baa1e or weathe r recorda and reeorc:1e ror stati on near Bernardo . 

488588 0 - 43 - 17 
2S2 RlO GRANDE: BABI N 

Rio Puerco near Bernardo , N. Mex . 

Location.- Water-stage recorder, lat . 34°24'30" , long. 106°51 ' 10" , In Sevl11eta Grant, at bridge on U. S. Highway 65, 1.2 miles southwest of Bernardo, 3 miles upstream rrom mouth, and 16 miles south or Belen . 

Records available .- November 1939 to September 1941 . September 1910 to August 1914 (fragmentary gage heights only), at site at Atch ison, Topeka&: Santa F'e Railway bridge , H 

miles downstream , publ ished as Rlo Puerco near La Joya, N: Mex . 

Extr emes. - 1939-40: Maximum discharge during period November to September, 7 , 200 second- teet Aug. 27 (gage height, 7.55 teet), from rating cu rve extended above 3 , 400 second- teet by logarl thmlc plotting; no flow tor extended periods . 1940-41: Maximum discharge du ring water year, 18,800 second-t eet Sept. 23 (gage height, 9 .60 teet). trom ra tlng cu rve extended above 7 , 800 second- t eet by logar! thml c plotting ; no flow tor extended pe ri ods . 

Remarks.- Records poor. Many diversions above station tor Irrigation . 

0.:, Oct . Jfov. Deo. 

1 

2 

s 

• 6 

6 

7 

8 

9 

10 

ll 

12 

1~ 

H 

15 

16 

17 

18 

19 

20 

21 

22 

2~ 

24 

26 

26 

27 

28 

29 

so 

Sl 

D1eobarge, 1n eeoond- teot, 193Q-41 

19~9-•o 

Jan. Pe'b. llor. Apr. llq 

0 0 0 • 5 107 0 2 ~ . 7 0 1 1 ~5 0 0 0 H 0 0 

0 10 0 0 0 8 0 0 0 8 0 0 0 6 0 0 0 4 0 0 

0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

0 0 0 0 

0 0 0 1 57 0 0 0 4 0 0 0 478 0 0 0 4 

0 0 0 0 0 0 0 71 2 0 0 0 alOO 0 0 0 77 0 0 0 43 

0 0 34 13 0 0 24 9 

0 0 ll 4 

- 0 J 0 

- 0 5 0 

- 0 - 0 

.1\mo 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

2 

0 

-

Julr 

·~~~~· Sept, 

26 89 9 

15 ~2 6 8 ll • • 9 22 

2 2l ~ 

0 ~0 •e 0 851 5 

2 ~56 16 

s 9 2 8 

1 S7 2 

0 17 • 59 0 8 uo 26S 40 llB 195 88 197 26 ~ 88 

4 209 ~s 

8 6S 16 

18 47 7 

111 49 s 92 20 82 

l4 162 56 ~ 211 198 

2 758 824 

1 2 ,640 200 1 1 , 570 eo 

0 1,520 40 39 1 , 860 18 1 , 2?0 168 20 

763 47 20 

802 24 21 350 15 - Peak d1achar;.- 1'\ay 19 ( 4 p.a. ) :5 ,8 30 aec.-tt. ; July 28 (11 P·•· } 3 ,930 seo. - rt . ; Aug . 24 (3t30 a.a.) 6,0 aec.- rt.; Aug . 24 (5 p.a. ) 5 ,860 s ec . - rt.; Aug . 25 (8 p.m . ) 5,160 ae c . -rt.; Aug . 2'1 {3 a.m . ) 7, 200 aeo. - tt. a No gage-he ight record ; di s charge computed on baa1a or weather recorda and. recorda tor etat1on at 

Rio Puerco. 
RIO GRANDE BASIN 253 

.Dlaoharge , i n second-too t, or Rio Puorco near Bernardo , N. HeJI: ., 1939- 4.1-- Conttnuod 

1940-41 

Da~ Oct . Nov . Dec . Jan . Feb . War. Apr . )ley June J uly Aug . Sept . 

1 15 4 0 7 0 25 84 42 .. ~ 3?~ aO aO dO 2 72 0 3 0 46 46 37 

~~ ~: &0 ao dO 3 41 0 3 38 25 41 45 3~~ &0 aO d3 4 48 0 1 43 20 64 51 'i:~ ~~ aO aO d8 5 23 0 0 25 14 66 40 aO aO dl 

6 10 0 0 11 8 45 25 1 , 33( 3~~ a25 aO dO 7 5 0 0 6 6 70 23 ~~ ~~ &10 aO dO 8 1 0 0 2 6 58 32 aS aO dO 9 0 0 0 1 4 72 25 47 371 aO aO dO 10 0 0 0 0 4 86 24 56! 910 aO a10 0 

11 0 0 0 0 1 91 27 43! 239 50 1,040 0 12 0 0 0 0 1 70 31 :~ d~~ 15 142 0 13 0 0 0 0 0 58 47 alO 1,110 0 14 0 0 0 0 0 49 5< ~:i &15 a20 491 0 15 0 0 0 • 38 65 54 &15 a30 195 0 

16 0 0 0 33 145 70 43 

:~ &50 d40 295 d40 17 0 0 0 23 185 205 38 148 5 150 d20 

18 0 0 0 15 a400 931 33 ;;~ 112 3 331 &10 

19 0 0 0 • a350 228 34 96 0 170 d40 

20 0 0 0 3 a500 173 41 320 9~ d40 45 598 

21 0 0 0 3 a400 142 55 856 aBO d60 22 632 

22 0 1 0 1 a500 18~ 64 ,~ ~ a60 a40 71 178 

23 0 4 0 1 a4SO 259 97 

~ 43 al5 5 4,110 

24 0 5 0 0 200 359 130 2 ,7 d20 a10 2 2 ,380 

25 0 7 0 0 224 484 125 al, d25 aS 1 178 

26 0 15 0 0 116 478 160 

"i~ d30 &10 0 a20 

27 0 20 6 0 125 490 448 a3 d10 a2 0 a6 

28 0 14 6 0 130 224 293 &2 &5 a2 0 a7 

29 0 12 3 0 - 84 271 &200 a3 a40 48 646 

30 0 10 1 0 - 47 263 ~~ al &10 65 3 , 940 

31 0 - 0 0 - 40 - - aO d5 - oak die char o .- May 5 (4 p.m. ) 13 , 800 aoo .-rt. · •us· 11 (5 ..... ) 7 , 4-.o soc . -rt.; •us· 13 (5 p .m. ) ~5! aoc. -rt., Sept . 20 ( 7 a. m. ) 6 ,.u6 s oc . -rt. , Sept . 23 (11 p . m. ) 18 , 800 aeo . -rt.J Sept. 30 (g a.m . ) 6 , 310 aoc .-rt. 

a No gage-height record ; discharge computed on baa 1a or aeven 4 1acha.rge measurements , weather recorda, and. recorda for su.t1 on at Rio Pueroo . 

b~i~~t~ e g~e~~:!~!,~;~:;:ct r~~ r~ ::·~~~e:!~: ~!~~:~~o~!: t~ ~~ ; ~!~~~rge canputed on 

l'tontbly dhoba.rge , i.n aeoond.- feet , 1939- 41 

Mon th 

Noveaber 1939 ............ . . . . . o •••••••• • •••• 

Deceaber ........... . ........... . .... , .. . ... . 

Calendar year 

Secondroot-days 

0 

0 

Janu.ary 1940 ........•..... o •• • •••••••••• o. . 0 

f'ebruary ... . ...... . .... . .. . ... o ••••• o . •• • o.. 9 March ............ . .. . .. . ............... . .... 241 April ..................... . ........... . ..... 77 )ley . . . . . . • . . . . . • . . • . . • . • • • . • . . • . . • . . . . . . . • . . l , 608 June .. .. .. .. .. . ... o•. o •. o o .• • . o•... . ........ 2 July .. . . .. . ... . •.. 0. • • • . • • • • • . • • • • • • . • . • • • • • 3 ,813 August ... . . . ........ . ... o •••••• , . 0 •••• • •••• o 10 , 860 

0 

0 

0 

5 

10'7 

3 4 712 2 1 , 276 2 ,6,0 

0 

0 

-------

0 

0 

0 

0 

0 

0 

0 

6 

lloan 

0 

0 

--------

0 

. 3 7 .8 2 .8 51.9 .1 123 

350 

Runott in acr~reet 

0 

0 

0 

18 

478 

15~ 

3 ,190 4.0 7,560 

21 , 520 

Septeaber .............. . o. ·· · ······· ·· ··· · · ol---2-, 7_2_1+- ---11----+----1----- 624 2 90,7 5,400 

38 , 320 '!be porlod ........ ... • . ............ · · · • · ·1-----l----+---- 1----+-'.:....--

Oc tober 1940 . . , . .. ... , .•..•.......... . .. . . . November . . .... . ..... . ......... .. . . .. . . .. ... . Oe ce•ber . . . . ... . ....... . ............ o ••••• •• 

Calendar year 1940 ....... . .....•. ....... . 

354 

88 

30 

19 , 793 

January ............ o ••• • •••• 0 • • • • • • • • • 213 February .. .... . ......... . .... 0..... . .. .... .. . 3 , 923 March ...........•..•.. 0. . ... . .. . .... . ... . . . . 5,361 April .......................... . ........ .... 2 , 657 Way . .........•..•.. 0 • • 0 •• 0 . • • • • • • • • • • • • • • • • • Z7 , 44·4 June ............•.. 0....... . . . ....... .. . . ... 6 , 093 July . .. . ....... . .. . .. . ... .. .. . ...... ...... .. 447 

154 0 20 0 7 0 

2 ,640 0 

43 0 500 0 ~1 t O 448 23 5 , 980 200 910 1 60 0 1 , 110 0 

u .• 702 2 . 9 176 1.0 60 

54 . 1 3~ !~6_0 --

6.9 422 140 7,790 173 10,630 88 . 6 5 ,270 885 54 ,430 

203 12 , 090 1< . 4 887 135 8 , 330 4,110 0 427 26 ,420 Auc:ust .... .. .. ...............•.. 0 ••• • • •• •• • • 4,198 

September . .. . ...... . .. .. .. . . .• .. • .. o • • • • • •• '+----1_2..:.,_81_7+--.:....-t-----+-----!--''---

later year 1940..4~ . . . . . . . . . . . . . . . . . . . . . . . 63 , 626 5,980 0 174 126 ,200 
RIO GRANDE 8.\SIN 

Bluewater Creek near Bluewate r, N. Mex. 

Locatl on .-Water-stage recorder, la . 35°18 ', long . 108 °01 ', In swt sec . 5 , T. 12 N., 

R. 11 w., 2i mlles northwe st or Bluewater and 8 m1les downstream !rom storage reser- voir or Bluewater-Toltec Irri gati on District . 

DrainaGe area .- 235 sQuare miles. 

Records ava1lable .- May 1912 to December 1914 and October 1930 t o September 1941 in r eports of Geol ogical Survey. May 1912 to June 1919 and Apr1l 1921 to December 1931 

in reports or State engineer. 

Extremes .- Maximum discharge during year, 800 second-feet Apr . 28 (gage height, 5 .25 feet); mlnlmum dally , 0 . 7 second-root Oct. 7 , 8 , and Jan. 4 . 1930-41 : Maximum dischar ge (correc ted; published ln error ln Wa ter-Supply Paper 

898) , 1 , 010 second- feet Sept . 1, 1935 (gage he i ght , 6 . 15 teet, s lte and datum then 

In use) , rrom rating curve extended above 65 second-teet by logarithmic plotting; no now Mar. 9, 1931 , and Feb. 3 , 1935 . 

Remarks.- Records good except those tor periods or l ee street or no gage-he ight record , ----wnTCFi are poor . Flow regulated by Bluewater-Toltec t Reservoir . 

Discharge , in second-teet , water year Oc t ober 1940 t o Septeaber 1941 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Oct. 

o. a 1.0 

.a 

.a 

1.0 

.a 

. 7 

.7 

5 .2 

6 .0 

2 .7 

1.1 

1.4 

5 .4 

2.0 

1.0 

2 . 2 

1. 0 

al. S 

October ... . November .. . 

December .. . 

Nov. 

} ... 

• 2 . 3 

.~ 

2 . 2 2.4 

2.0 

1.9 

b2 . 7 

~.2 

b3 .2 

'b3. 7 

b3.8 

4. 2 

1.9 

1.4 

1.1 

1. 1 l.l 

1.2 

1.2 

1.1 

1.0 

.9 

• 1.0 

. 9 

Dec . 

0 . 8 

.a 

. 8 

.a 

.a 

.a 

.a 

.a 

. 9 

1. 2 

1.2 

1.1 

1.1 

1. 0 b . S 

.9 

1.0 

l.O 

•.9 

.a 

.a 

. 9 

1. 0 l.O 1.4 

b.S 

.9 

1.0 l.l 

l.l 

1.2 

Month 

Jan . 

1.2 

l.O 

. 9 

.7 

1.1 

l.O 

b.9 

1.0 

•1. 0 l.O 

l.O 

1.3 

l.l 

1.0 

bl.O 

.9 

.a 

.a 1.1 

1. 2 

l.l 

l.l 

1. 2 1.4 

1.2 

l.l 

l.l 

1 . 1 

• 1. 2 

1.1 

1.0 

Calendar year 1940 ............. . 

Feb. 

b0 .9 

b . 9 b.e b . 8 

b.9 

bl.O 

1. 2 1.2 

1.1 

1.2 

1.2 

1. 2 

1.2 

1.2 

1. 2 

1. 5 1.5 

1.5 

1.6 

• 1. 8 

2 . 0 2 . 4 2.8 

2.7 

2 . 8 

3.0 

3.0 

3 . 2 

January .... ... . ..... . ... . .... . • . .•. .. . ... . 

February . ........ . ... . ~ . . .....•............ 

March . .......... ... . . . ... ....... . . . ....... . April ..............•..•.... May ....... ....•..•....•..••...• • .•.... . . . .. 

June . ......... . ....... .. . . . . . . . . ... .. . July ......... ........ . , .. , .... .. . . ... . August .... ....... . 

Septembe r . .. ..... ........ .. . . . ........ . 

Ma r . Apr . May 

3 .3 

3 . e 4.0 

4 . 2 4.3 

4.3 

4. 6 

4 . 6 

4. 8 4.9 

5 . 2 5 . 6 

e. 2 

7.1 

7.3 

6.3 

6.2 

6.3 

6.3 

6.7 

7 . 1 

7 .3 

7 . 8 8 .1 

8 . 5 

· e.e 

8.5 

8 . 5 9.0 

9. 0 9.5 

Second- root.-da,ys 

54.1 

59. 8 29.5 

2 , 320.6 

3 2 .6 4 5.8 

197.9 

2 ,871 

5 , 139 1,812 

1, 599 

1,183 

638 

11 

11 

12 

12 

12 

12 

13 

13 

l4 

14 

15 

16 

16 

16 

17 

17 

23 

20 

19 

19 

22 

21 

20 

20 

27 

48 

346 

746 

71 2 607 

521 

632 

554 

618 

558 

388 

340 

290 

213 

91 

48 

50 

51 

51 

50 

47 

46 

43 

40 

39 

41 

43 

44 

45 

46 

4 6 

.. 

43 

41 

39 

37 

Maxiaua 

6.0 

4 . 2 1.4 

56 

1.4 

3.2 

9.5 

746 

63 2 

87 

73 

55 

4 2 

Water year 1940- 41 ............ .... .. . 1~,661.7 7 46 

Juno 

50 

55 

53 

54 

54 

53 

H 

3 2 

3 4 

33 

57 

62 

68 

75 

76 

77 

77 

87 

87 

87 

87 

87 

87 

77 

53 

4 2 

36 

35 

43 

4 3 

0. 7 

. 9 

.a 

.2 

. 7 

.a 

3.3 

ll 

3 7 

3 2 

22 

18 

1 2 

• 7 

July 

50 

42 

46 

38 

3 2 

24 

~ 

22 

36 

49 

47 

46 

54 

60 

73 

68 

67 

68 

68 

67 

57 

63 

58 

56 

50 

47 

47 

46 

62 

87 

67 

Moan 

l. 75 

1.99 

.95 

6.34 

1.05 

1.64 

6. 3 8 

95 .7 

166 

60.4 

51.6 

38. 2 

21.3 

~7.4 

53 

4 5 

43 

39 

53 

54 

55 

50 

47 

34 

36 

35 

28 

32 

21 

18 

18 

18 

21 

22 

28 

36 

37 

37 

4 5 

16 

50 

53 

50 

40 

39 

Sept . 

35 

22 

15 

24 

3 2 

39 

42 

39 

36 

30 

26 

24 

15 

14 

13 

12 

22 

24 

24 

18 

15 

15 

12 

12 

1 2 

12 

12 

l4 

16 

1 2 

Runoff in acre-teet 

107 

119 

59 

4,600 

65 

91 

393 5 , 690 

10 , 190 3 , 590 3,170 

2 , 35 0 

1 ,270 

27,090 

• Winte r dlecharge meaeurement nade on thh day. a Ko gage- h eight re cord ; discharge computed on bailie o r 

record. 

n. nge o r e t age and preceding and aueceeding 

b Stage-discharge r e la t1on affected by lee . 
RIO GRANDE BASIN 255 

San Jose River near Grants , N. 11ex. 

Location.- Water-stage recorder and concrete control, lat. 35°04' , long. 107°44', In SEtSEt sec. 23, T. 10 N., R. 9 w. , at west boundary o r Acoma Indian Reservation, Bt mi les southeast or Grants. 

Records available.- June 1936 to September 1941. 

Extremes.- Maximum discharge during year, 530 second-teet 

min i mum dally, 4 . 4 second-teet Apr. 16 . Apr. 30 (gags height, 3 .20 teet); 

1936-41: Maximum dlschar~e , that of Apr. 30, 1941; minimum dally, 4.0 second-teet Apr. 17-21, 1937, Jan. 2-6 , 939 and Ap r . 6, 1940 .. 

Remarks.- Records ralr. Dl versions above and below station tor Irrigation. 

Dis charge , in s econd-teet. water year Oc t ober 1940 to September 1941 

Day Oc t . Nov . Dec. Jan . Feb . War. Apr . llay June July Aug. Sept . 

l 6.4 5 . 8 4. 7 04 . 8 7 . 0 6 .1 8.2 4U 

2 5.8 5.8 4 .7 a4 . 8 7.0 6 . 1 8 .2 394 

3 5.5 5 . 8 4 . 7 a4. 7 6 .7 6 . 1 8 . 6 ~5 

4 5.5 5. 5 4 . 7 a 4 . 8 6. 4 5.5 8 . 6 417 

5 5.5 5 .5 4. 7 a4.9 6. 4 5 .5 8 .2 H8 

6 5.2 5.5 4 . 7 a4.9 6.1 5 . 2 8 . 2 417 

7 5 . 5 5 . 5 4.7 a4.8 7.0 s.o 7.6 274 

8 5.5 5 . 5 4.7 4.7 .~ 5 . 0 7 . 3 235 

9 5 . 5 5.5 a4 . 8 4.7 7.6 5.2 6 .1 205 

10 5 . 5 5 . 5 a4. 9 4 . 7 8 . 2 5 .2 5.8 154 

ll 5 . 8 5.5 as.o 5 . 0 7.9 6 . 1 5 .5 58 

12 5.5 5 .2 at . 9 5 . 0 7.~ 5.8 5 . 2 27 

13 5 . 8 5 . 2 at .B 5 . 2 7.6 6 . 1 s . o 25 

14 5 . 8 5.2 a 4. 7 5 . 2 6.7 7 . 6 5.0 24 

15 5 . 8 5 .2 a4.7 5 . 2 5 . 8 15 5 .0 a2l 

16 5.8 5.2 a 4 .6 5.0 5 . 5 15 4.4 alB 

17 5 .8 5.5 ••. 7 4 . 7 5 . 8 12 4 . 7 al5 

18 s . a 5.2 a 4.9 4. 7 6.4 10 4. 7 aH 

19 5 . 8 5.2 5 . 2 4 . 7 6 •• . 9 . 0 4.7 all 

20 5 .a 5.0 a6 . 0 5.0 6 .7 

21 5 .5 5 . 0 a4.9 5.2 7.~ 

22 5 . 5 4. 7 a4 . 8 5.2 7 . 6 

23 s.a 4.7 a4.9 5.2 8 . 6 

24 5 . 8 84 . 8 a5.0 5.5 8 . 2 

25 5 . 8 a6.0 a5.2 6.1 8.2 

26 5.8 at.e a5 . 0 6 .1 7. 6 

27 5 .8 • •. 7 &4.9 6 . 1 7 .3 

28 5 - 5 4. 7 at.e 6 .4 7 . 0 

29 5 . 5 4-7 a4.8 6 .4 

30 5.8 4. 7 &4. 7 6 .7 

31 5 . 8 • • . 7 7 . 0 

Wonth 

October ... . . ..... . Noveaber ....................... . ........... . 

Deceabe r ..... . 

Calendar year 1940 

January . ...... . ..... . . ... . .... . . . .... . 

February . . . ........• . ...... . .... .. ..•.. . ... 

March . ..... . ..•..•..•.•..•.... , . .. . .......• 

April .... . ......•.............. . ..•..•. . ... llay . . . . ....... ...•.......•.... . .. . .... .. .. . June . . . ....... . .•............. . .. •. ...• • ..• July .. ..... . ...... . ........ .. , .....•.. . ugus .... .. . ......... . .... . .. . ... . 

SQPteiDber . .. . . . ...... . 

Wa t er year 19 40 -41 

8 .2 4-7 8 . 6 

8 .6 5 . 2 12 

12 7.~ 43 

12 7 .6 56 

l2 6 . 1 42 

ll 5 . 8 36 

9.8 6 .7 34 9, 3 7 . 6 ~0 

9 . 0 75 ~ 

8.6 250 16 

8.2 426 ll 

8.2 9 . 8 

Second- M.a.ximWII root-days 

176 . 2 6 .4 

156.1 5.8 

149.5 5 .2 

2 , :nt. 5 92 

------- 16~.4 7 .0 

197.6 8.6 

258. 4 15 

92~ 0 426 

967. 4 448 

~06 .7 2~ 

177.~ 7 . 3 

~9 .2 4~ 

180.9 12 

7, 036 . 0 448 

9.~ 6 . 4 5.0 6 . 4 9 . 0 6 .4 5 . 0 6 . 1 

9.0 6 .7 5 . 0 5 . 5 

~ 7.0 5 . 0 5 . 5 

H 6 .7 5 .0 5 . 5 

a20 7.0 5 . 0 5 . 5 

a2~ .~ 5 . 0 5 . 5 

al5 7 .0 6. 1 5 . 5 

al~ 6 .1 5 . 2 5.5 

al2 6 .1 5. 2 5 . 8 

all 5 . 5 5.2 s .8 

alO 5. 2 60 5. 8 

a9 5 . 2 a~ 5 .a 

8 . 2 5 . 2 &15 5.8 

7.9 5 .2 • 9 5 .5 

8 . 6 5 . 8 a 7 5 - 5 

ll 5.2 a6 . 6 5 . 5 

9 . 8 s·.o •6 5 .5 

8 . 2 5 . 0 a6 . 5 5 . 5 

7 . 6 5 . 0 a8 5 . 5 

13 5.8 al~ 5 . 8 

8 . 2 6 . 1 a a 5 . 8 

7 . 3 5 . 5 a6 5 . 5 

.~ 5 . 2 &6 5.5 

9 .3 5 . 2 as.s 5 . 8 

7 .9 5 . 2 5.5 5.5 

7 . 0 5 . 2 5.5 5 . 5 

6 . 4 5. 2 5 . 5 5 . 5 

6 . 7 5.0 5 . 5 12 

6 . 7 5.0 5 . 5 ll 

5.2 5 . 5 

Mi niaum lie an Runoff in acre-feet 

5 . 2 5 . 68 349 

4.7 5 . 20 ~10 

4-6 4. 82 297 

4 . 0 ~2 4,590 

4 . 7 5 . 27 ~24 

5. 5 7 . 06 392 

5 .0 ~• 1~ 

4 .4 ~0 8 1 , 8:50 

8 .E 128 7 , 850 

6 . 4 10 . 2 608 

s.o 

s.o 

5. 7~ ~52 

12.6 772 

5.5 0~ 359 

4 .4 ~ 1:5 , 960 

Aug. 12 (6 p . n. . ) 340 Peak dhcharae.- Apr . :50 (8 p. m. ) 5:50 aec .-rt.; Msy 1 (10 a.m. ) 505 sec. - rt.; sec . -ft.; Aug. 12 (9 p. o . ) 274 aec.- rt. ; Aug . 1:5 ( 2 a . m.) 480 sec . -rt. a No gage-he ight record; clhcharge computed on bash ot weather records o.nd records for atat1,on 

noa.r San Pldel , and McCartya north and south d1tchoa nea r San F1dol . 
256 Rl 0 GRANDE: BASIN 

San Jose Rl ver near San F'ldel, N. Max. 

Locat i on.- water-stage recorder and concrete control wJ th angle 1 ron crest, lat. 35°04', 

long. 107°40 ', near Quarter comer between sees . 27 and 28 , T. 10 N., R. 8 W. , at McCa rcys, 500 reet downstream rrom Atchison, Topeka & Santa F'e Rallway bridge and 

4t miles west or san F'ldel. 

Records ava ilable .- June 1936 to Septembe r 1941. 

Extremes .- MaXImum discharge during yea r, 418 second-teet May land 4 (gage height, 7.75 

teet); mlnlmum dally, l.O second-root on several daye during December and January. 1936-41 : Maximum d ischarge, that or May 1 and 4, 1941 ; minimum dally , 0 .5 second- roo t Mar. 25, 26, 1937. 

RemarkS .- Records good except those ror periods or no gage-height record, which are poo r . --several diversions above and below s tation tor lrrlgetlon . 

Discharge. in second-tee t . water year Oc tober 1940 to Septeaber 194~ 

Day 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

2:7 

28 

29 

30 

31 

Oct . 

.~ 

7.~ 

6. 9 

6.2 

5 .2 

6 . 2 6 . 2 

6 .1 

5 . 9 5 . 6 

5 .7 

5 .6 

6.1 

6 .t 

6 .t 

6 .2 

6 .2 

6 . 2 6 .1 

6 .1 

6 . t 6 .4 

6 .1 

5.7 

5 . 6 

6 .2 

6 .4 

6 . 2 6.2 

6 .1 

6 .1 

October . November . 

Dece•be r . 

Nov . 

6 . 0 6 . 6 7.1 

6 . 9 6 . 6 

6.6 

6 . 6 

a6.7 

a6.'7 

a6.7 

a6 . 6 

a6.4 

(l 6 o2 

a6.8 

a5 . 8 

a6 . 0 &6 . 6 

a6 . 4. 

a6 . 4. a6.Z 

a6.2 

a6. 0 a6 . 0 a6.9 

a7.9 

a7.0 

.s.l 

2.9 

2 . 9 2 .9 

Dec . 

~. 7 

9 

.9 

~. 6 

3.1 

2.9 

~.~ 

~-~.~ · ~ 

2 . 9 2 . 6 2.~ 

~ 

2 . 2 

1.8 

1.1 

1.0 

1.7 

2 . 8 

5 . 6 1.1 

1.1 

1. 2 

~ 

1. 2 1.2 

1.2 

1.1 

1. 1 

1.1 

Month 

Jan . 

1.1 

1.0 

1.0 

1 . 2 1.2 

1.2 

1.1 

1.1 

1 . 0 1 . 2 

l.O 

1.1 

1.~ 

1.0 

l.O 

1.1 

1.1 

1.1 

1.1 

1.0 

1.1 

1.1 

1.2 

1.1 

1.1 

1.0 

1. 0 1.6 

1.6 

1.6 

~ 

Feb . 

5.6 

5 .6 

5.6 

6.6 

5.4 

5.7 

9 . 9 10 

11 

11 

11 

10 

11 

10 

9 . 9 

9.~ 

~ 

10 

9.9 

10 

11 

11 

1~ 

12 

1~ 

12 

11 

11 

Calendar yea r 19 40 .. . .. . . . .. ... .... . .... . 

Mar. 

10 

10 

9.9 

9 .9 

9.6 

9 .6 

9 .6 

.~ 

.~ 

.~ 

9 . 9 

9 .6 10 

12 

1 '7. 

19 

1 7 

15 

14 

1~ 

1~ 

17 

17 

~ 

9 .0 

11 

12 

12 

11 

u 

11 

Secondtoot-days 

Apr . 

11 

11 

11 

11 

11 

11 

10 

10 

9 .6 

9 .0 

8 . 7 8.7 

8 .6 

8 . 6 

8 . 5 

8.2 

·8 .2 8.o 7 .8 

7 . 8 

8 . 2 11 

12 

7.8 

5 . t 

5 .7 

5.7 

19 

181 

~t 

92.~ 

182 .8 

72.~ 

2 , 003 . 2 

May 

uo ~ 

~96 

t 08 39 ~ 

t OO 

~25 

266 

22 ~ 

167 

90 

36 

28 

2 t 

16 

12 

9 .6 

7 . 6 6.1 

s.o 

10 

t 8 

as 

52 

u 

~ 

~1 

~ 

17 

1~ 

:u 

June 

8 . 6 7.6 

7 .1 

7.~ 

1~ 

2 t 

28 

~ 

16 

11 

8 .2 

5 . 0 4.7 

t . t 5 .t 

5 . 9 6 . 9 5 .9 

5 .7 

5 . 2 

··~ 7 .7 

6 .4 

5 . 9 7.1 

6 . 2 5 .9 

5 .7 

t.9 

5.0 

J uly 

~ 

2 .1 

2.6 

2.9 

2 .7 

~.6 

5 .0 

5.6 

5 .t 

t . 7 

7 

t.7 

t.6 

t.O 

4.1 

.~ 

5 . 2 6 . 6 

6 .1 

1.4 

1 .2 

1.7 

2 . 5 2 . 7 

~ 

2 . 2 

2 

2 .0 

1 . 8 , 1 . 6 2 .1 

Aug . 

2.8 

1.8 

2 .5 

2 .2 

2.1 

2 . 6 1.8 

~.9 

6 

1.6 

1.4 

7.8 

146 

22 

7 . 8 

6 . 6 4.~ 

s.4 

6 .9 

9.0 

17 ~ 

8 .0 

7 . 8 2 . 6 

1.8 

2. ~ 

2 . 5 2 . 2 2 .2 

.~ 

Sept . 

~.e 

~. t ~.9 

~.9 

t.1 

t.6 

t.~ 

t.o 

~.t 

2 . 6 

2 . 7 ~.t 

2.2 

~.1 

.~ 

~ 

2.7 

1. 7 1.8 

2 . 0 

2 .1 

2.~ 

.~o -~ 

a15 

lUniaum Moan Ru.nott in ac re-teet 

~ 6 . 6 6 .20 7 .9 2 . 9 6 .09 5 .6 1. 0 2.~~ 

100 .8 5. 47 3 ,970 

January . . . . ......... . . . . . . . . . • . . . . . . . . M.s .~ 1. 0 1.18 72 

February . ....... . .. . .. . ... . . . ... . .... . . . ... 269 .8 1~ 5. 4 9 .54 s~ 

Maroh ...... . .. . ... .. . . . .. . .. .. . . ....... ~7 0 19 9. 0 11.9 7~4 

April . . ... . .. . .. . ....... . . .... . . . . ......... 807 . 3 364 6. 4 26 .9 1 , 600 May .. .... . . ... . ...... . .. .... . . ... . ... . . . ... ,99~.~ UO 6 .0 129 7 ,920 Juno. . .. ...... . ... . ....... . ........ . ....... 262.9 28 ~ a. 76 621 July ... . . ... . . . • . . . . • . . . . . . . . 107.0 6 .6 1.2 3.45 212 August . ... . .. . . . . . • . . . . . . . . 300.0 145 1.4 9 . 68 596 

Sopto•bor .. ... .. .. . ........ . ............... 1-__ 1_3_2_._~1---30--+---1 ·_7+---4-·4_1+---62_ 

Water year 1940-41 . . .. . . . . . . . . . . . . . . . . 6 , 726.5 410 1.0 18 .4 13 ,:540 

20'•~ ~=f£~rf:g: ~" <io ~~ P~~~!} ~~ ~~:~~~~~t: May 4 (1 to 2 p. m. 418 aeo.-rt. J x.,. 22 (11 p.m.) 

a No gage-height r ecord; discharge Nov. 8 - 27 computed on basta or wea ther records and recorda for station near Grants, and KcCa rtya north and. south ditches near San Pl de l; Se pt . 28- 30 , computed on basis or range or stage and recorda r or atatlona near Grants and near Caaa Blanca . 
RIO GRANDE BASIN 257 

San Jose River near Casa Blanca, N. Mex. 

Locat!on.- Water-stage recorder and concrete control , lat. 35°02 ', long . 107°27' , !n 

NWtNEt sec. 3 , T. 9 N., R. 6 w., 400 teet downstream rrom hea<l or New Laguna d!tch, 

1 m!le upstream rrom E:nc!na l Creek , li m!les east or Casa Blanca, and 2 m!les upstream rrom New Laguna Reservoir. Datum or gage !s 5 , 586.1 teet above mean sea level 

(Atch!son , Topeka & Santa Fe Ra!lway bench mark). 

Recoros ava!lable .- June 1936 to September 1941 . 

Extremes.- Max!mum discharge <lur!ng year, 994 second-teet May 23 (gage he!ght, 4.92 teet). 

from rat!ng curve exten<led above 420 secon<l-teet by logar! thm!c plott!ng on basts or slope-area detenn!nat!on at gage he!ght 5 .30 teet; no now at t!mes. 

1936-41 : Max!mum discharge, 1,330 second-teet July 26, 1937 (gage he!ght, 5.60 

teet, rrom tloodmarks !n gage well) , rrom rat!ng curve extende<l above 420 second-teet 

by logar! thm!c plott!ng on bas!s or slope-area detenn!nat!on at gage height 5.30 teet; no flow at t!mes. 

Remarks.- Recoros tal r except those ror per!ods or lee errect or no gage-he!ght record , --wliTCI1 11re poor. D!vers!ons t or !rr!gat!on above and below stat!on . Recoros do not !nclu<le flow bypassed stat! on !n New Laguna <11 tch wasteway. See recoros tor New Laguna <l!tch wasteway near Casa Blauca. 

Discharge , in second-teet. Yater year October 194-0 to Septe11ber 1941 

1 

2 

3 

4 

5 

6 

7 

a 

9 

10 

11 

12 

13 

14 

15 

16 

17 

1a 

19 

20 

21 

22 

23 

24 

25 

26 

27 

2a 

29 

30 

31 

Oct . 

3 .3 

5 . 6 

3 .9 

La 

1.6 

2 . 0 

1 .6 

1.3 

1.6 

1.6 

1.6 

1.6 

1.6 

2 . a 3 . 6 

•• 5 

3.6 

•. o 3. a 3.0 

3.3 

2.3 

2.2 2 . 0 1.6 

1.2 

2.2 2 .9 

2 . 9 2 . 6 

3.3 

Nov. 

2 .7 

2. 4 

3 . 2 3 . 6 3 .2 

3.5 

3.2 

3 . 3 2.9 

3 . 2 

1>3.0 

1>3.0 

3 .4 

3 . 9 •• o 

•• 2 4.7 

5.0 

5.0 

3.9 

1.2 

1.6 

1. 3 ;.. a 2 .4 

1.9 

.a •• 7 

0 

0 

Dec . 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

.5 b2.0 

b3.0 

b2 . 0 bl.5 

b5.5 

b5.0 

b2.5 

b 3.5 

7.7 

b2.5 

w.o ••. o a:5. & 

a:5 . 0 .~.0 

Wonth 

Jan . 

a2.5 

&2 .:5 

b2 . 1 

2 . 0 b2.2 

b3.3 

2.4 

•b2 .4 b2 .5 b2.3 

b2 . 7 

3 . 9 3.5 

b2 . 7 

b2.3 

2 . 0 

1.~ 

2 .1 

b2.6 

b2 . 7 

b2 . 7 b2 . 5 b2 . a 

b2.3 

b2.8 

b2.6 

b 2 .7 • 2 .6 

a2.6 

a2.7 

b2 . a 

Feb . 

4.2 

6. 7 

6 .5 

6 .7 

6.7 

6 .5 

10 

a ll 

a12 

a13 

al3 

al2 

a13 

a12 

al2 

all 

all 

a12 

a12 

al2 

a13 

a13 

a15 

al4 

a16 

al4 

a13 

a13 

Ootober .... .. . . , . ...... . .............. . .. . , No"Ye•ber .. . ... . ... . ... . .. . .. . ..... ... ..... , Oeoe•be r ........ ... ... . . ... . .... . .... . .... . 

Wa r . Apr . 

al2 

al2 

al2 

al2 

all 

a8.5 

a4 . 0 &4.0 

&4.0 

•• 7 

5 .0 

5.1 

•. a a6. 0 a G.& 

al2 

all 

.a.ts a7 . 0 a6 .6 

a6 . 0 a9 . 0 

a9 . !5 a8 .6 

a8.6 

a7.0 

a6.0 

as.o 

a4.0 

a4.0 

•. o 

!'econdroot-<laya 

80.5 

86 . 0 53. 2 

a:5 . 6 4.3 

3 . 5 •. a 4 . 2 

3 .2 

4 . 5 3.5 

1 .7 

2 .4 

1 . 5 1.7 

1.7 

0 

. 7 

.3 

.9 

.3 

.a 

.1 

0 

a.;. 

3.5 

0 

0 

1.1 

.5 

.1 90 

290 

Calendar year 1940 . . . . . . . . . . . . . . . . . . . . . . 2 , 267 .0 

May 

466 

537 

442 

502 

450 

486 

376 

266 

219 

186 

12a 

73 

u 

:18 

32 

15 

9.6 

11 

9 . 6 6 .1 

27 

69 

456 

eo 

a70 

a60 

51 

H 

:18 

29 

22 

5 . 6 5 .0 

7 .7 

June 

17 

11 

4 . 6 

7 . 1 

46 

22 

29 

25 

14 

9 .0 

5 . 9 3.3 

. 6 

.1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

3. 4 

6 . 7 

0 

0 

0 

0 

0 

1 . 2 

0 

0 

300 0 

July 

0 

0 

0 

0 

1.4 

. 1 0 

0 

0 

0 

0 

0 

0 

2.3 

2 .9 

0 

0 

0 

0 

22 

1.4 

0 

0 

0 

0 

.5 

a.5 

6 . 6 3 . 4 2 . 9 

0 

Aug . 

0 

0 

0 

0 

0 

0 

. 7 

3 .4 

3 .7 

4 . 0 

0 

43 

131 

29 

3 . 2 

1.6 

al.O 

a . 5 al.O 

13 

14 

6 . 1 

. 5 0 

0 

.6 

.1 

0 

0 

0 

al.S 

Sept . 

aO 

a9 

•• a3 

a:5.S 

.~ .6 

a2 . 6 0 

0 

.2 

0 

0 

0 

0 

2. 4 

.1 

2 . 2 

55 

39 

9 .3 

6.7 

5. 7 22 

4.6 

•. o 

3 .3 

3 . 6 

22 

193 

20 

Mean Runoff in acre-feet 

2 . 60 2.a7 l. 72 160 171 

106 

6 .17 4, 460 

January . ........... . . . ........... . .. . ...... 79 . 5 3.9 1.9 :~6 ~~ 

Fe bruary . . . ....... • .. . ..•. ·•. .•. •• .• . . . . . 313 .3 15 !:~ 7 .42 456 March ....... . .... . . . .. ..... .............. . . 230 .1 12 0 H.6 867 

Aprll. .. . .... .. ...•.. • .. • . . •.... . ........ . . 437.2 290 6.1 169 10 , 390 May . ......... . . . .............. ... .......... 5 , 239 .3 537 

June . .......... . ......... . ......... .. ..... . 204.7 46 0 t: 406 

i~~~ai ::::::::::::::::::::: ::::::::::::::: 2g~ :g 1~ g a.32 m 

Septe•be r: ........ ...................... .. 1-----'4~1::_8;.:. 6+-~1:_:9~3-j-_ _ _:::_j-_...:1:.::.:.·.:.0-+---=~ 

Water year 19 40-41 ..... , .. .. .. .. . .. . .. . 7 t6 -~ 5~7 0 20 . 4 14, 780 

Peale dheharf•·- May 1 (1~ p.m.) 872 aeo . -rt. J llay 2~ (12 :~0 a.m.) 99f ae e. -tt.; M.ay 2:S (S a . m.) 990 aec .-ft.; ug . 12 (11 p. m.) 4~0 aee . -ft.; Sept. 18 (Q p .• . ) 670 aec.-rt.; Sept. 29 (2 a.m.} 

4 sec . - ft. • tr 1nter c1 1acharge measurement made on thla day • a lfo gage-he i ght record; dlaoharge colllputed on baah or atudy or galn or 1oea between Caea B1anca 

and station near San P1del. b Stage-dlaeharge relation a ffected by lee . 
258 RIO GRANDE BASIN 

San Jose Rive r nea r Laguna, N. Mex. 

Location.- Wate r-stage recorde r upstream from d ivers ion dam or Mea l ta d l ch , l a t . 35°01 ', 

l ong. 107°19 ', In sec . 12, T. 9 N., R. 5 11 . , 3t m!les eas t or Laguna and 4 m!les downstream rrom Cebolla ta Cre ek. 

Records ava ilable .- Feb rua ry 1937 to Septambe r 1941. 

Extremes.- Maximum d ischa rge duri ng yea r, 1, 530 second- fee t May 4 (gage he i ght, 4. 05 teet), from rating cu rve extended above 950 second-tee t by loga ri thm i c plotting on basis or computation or n ow ove r dam ; mi nimum dally , 0 .1 second-root Aug . 2 and 3. 

1937-41 : Maximum discharge, 3,400 second- t ee t Aug . l , 1937 (gage he i ght, 5 .50 t eet), by computati on or n ow ove r dam; no now a t times . 

Remarks.- Records poo r. Dis cha rge Includes flow d ive rted by Meslta ditCh jUS t be l ow ----stlitron . Seve ral d i versi ons above sta ti on f or Irriga ti on. F'low pa rtly regulated 

by New Laguna Rese rvoir (capaci ty, abou t 700 acre-t ee t) and Pagua te Rese rvoir 

(capac ity, abou t 1 , 000 acre- f ee t ) . 

Discharge . in second-teet, water year October 1940 to September 1941 

Day Oct . Nov. O..c. .lao. Feb . Mar . Apr . llay June Ju ly Aug . Sept . 

l 7.9 4.e 1.6 1.9 bl. 4 9 . e e . e 559 20 e.6 0 . 7 10 

2 7~ 4.e 1.6 1.4 bl.l 9 .e e . 3 886 19 s.~ .l 7 . e 

3 6 .9 4.e bl.5 1.5 bl.2 9 .e 7.4 614 25 ~ .l e 

4 4.~ 4. 6 bl.5 bl.6 bl.l 7 . 6 e . l 594 2e 2 .4 1 . 5 2 . 6 

5 4.2 5.4 bl .5 bl.6 bl ... l e . 2 5 . 0 756 20 2 . 1 7 . 6 0 

6 7.4 1.4 2.e bl.l 10 4. e ~91 l4 5 . 0 5 . 7 2 . 9 

7 5.6 bl.2 b2.4 3.0 12 4. 6 ~9e 9 .9 4.e .e 2 . 5 

e 4.1 bl.6 b2.4 3 ll -~ 0 e o 4.5 4. 6 2 .e 

9 .9 bl.9 b2.4 bl.6 e . e 4 . 0 le eo 4 . 2 .~ 3 . 2 

10 b.4 4.1 bl.5 1.4 5 . 9 9 . 0 420 70 6 .0 4.e e 

ll ..... o b.4 4 . 4 bl.6 1.2 <17 7 . 9 288 50 1.6 4 . 6 5 

12 b . 6 3 . 3 4-1 .9 <113 4.6 ~9 23 1.7 5.0 .9 

13 b . 9 2.~ 2.3 . e 9.7 4.0 46 16 l.e 51 ~ 

14 b.9 bl.e bl.6 .9 9.7 3.1 6~ e.~ 1.9 156 5 .0 

15 bl.4 bl.e bl.5 l.O 5.9 1.6 so 6 . 6 2 . 6 163 .~ 

16 bl.4 1.0 b1.4 . 9 9 41 167 6 . 4 5.~ 50 5 . 5 

17 4.6 bl.6 1.e 1 . 2 .9 3 .1 36 162 6.2 . 6 20 4.~ 

1e 7 . 2 b l.9 ~.9 bl . 5 .9 2 .9 18 124 3.5 . 4 ~5 l.~ 

19 6 . 9 3 . 9 b2 .4 bl.6 .9 l. e 12 e o 2 . 0 e . 7 5 .1 1.4 20 4.4 3.5 b2 . 4 bl.6 1.2 1.5 ll 77 1. 2 7 . 6 l4 2 .4 

21 4 . 1 bl.9 bl.8 bl. 2 1.8 1.4 7 . e 146 1.4 1.6 e . o 1.2 

22 4.4 1.4 b2 ~ bl.4 1.2 .a 16 ~26 1.4 1.2 1 . 6 42 23 4.4 1.2 bl4 bl.l 2 .4 .7 20 711 2 . 8 1.2 1.4 76 24 3.9 5 . 6 24 bl.4 1 . 5 1 . 6 10 9 2 . 6 l.O 1. 6 9 .6 25 4.1 5 . 0 15 bl.9 2.3 1.8 42 142 ~ l.O 3 . 5 2.1 

26 3.0 ~.7 8.4 bl.4 7 .6 1.3 170 lOS 2 . 1 .9 5 .1 2 . 7 

27 2. 4 3.0 b4 . 8 1.5 9 . 2 .~ 192 88 4.0 2 . 4 5 . 0 1.7 

28 3 . 7 b2.4 2 . 8 l.l 9 . 8 ll 176 77 9 . 7 3 . 8 ~ ll 

29 4.8 b2.6 1.6 3 . 5 l2 134 39 8 . 6 2 . 2 16 ~16 

30 5.0 2.~ 1.8 ~ ll 232 36 8 .6 .4 27 160 31 5.0 2.6 bl . 6 10 28 .5 9 . 7 

Month Second- Maxi au. Mini.IIU& lleao Runoff in toot-days acre-teet 

October ......... ·········· · 208 .2 73 2 .4 6.72 41~ 

November. .. ..... ... ... 88 . 4 7 . 4 .4 2.95 175 December .. . . . . . . . . . . . . . . 122. ~ 24 1 . 0 3 . 94 242 -----~ 

Calendar year 1940 ...................... 2,339.4 411 0 6 . 39 4., 640 

------- -- --- - January ....................•..... . ..... . ... 57.3 4.1 l.l l . e5 114 February . . ...... . ......... . ......... .. ..... 61.7 9 . 8 . e 2.20 122 llarch . .. ......................... 206 . 3 13 .7 6.66 409 April ... ........ .. ......... .... ... .... 1 , 204 . 3 232 1.6 40.1 2 , 390 May . .... ...... ......... ............ 8 ,7-t2 886 28 282 17 , 340 June .... ...... .... .......... ... .... ... 532 . 6 eo 1 . 2 17 . 8 1, 060 July . . .. ······························· 102.6 8 .7 . 4 3 . 31 204 August . . . ················ ······ ··· 622.1 163 .1 20.1 1 , 2:5 0 Septe11ber . .............. 701.5 316 1.2 23 .4 ~90 

Water year 1940-4.1 .... ·········· ········ 12, 649.1 886 .l 3 4.7 26 ,090 

• No gage -he1gh t record; dill charge computed on baela or weather recorda , one dheharge measurement , 

anc1 records ror atat1on near Casa Blanca. h Stage-discharge relation arrected by lee . d Doubtf'ul gage- holg.ht record; discharge computed on bash or recozods tor Meal ta c11toh near Laguna . 
RIO GRANDE BASI N 259 

San Mateo Reservoir at San Mateo, N. Mex. 

Location.- Water-stage r eco rder In metal shelter, lat. 35°19 ' , long . 107°38 ', In SEt sec . 25 , T. 13 N., R. 6 w., over concrete outle t tower In upstreaw race or dam, threequarters or a mile southeast or San Mateo. 

Re co rds available .- Dec. 19, 1939, to Sept. 30, 1941. 

Extremes .- 1939-40 : Maximum dally contents during pe riod December to September, 60 acre- feet b. 11 (gage height, 35.1 reet); no storage Sept. 4-13. 

1940-41: Maximum dally contents during wate r year, 63 a cre-reet Jan. 12, 13, 

July 2-11 (gage height, 35.7 and 35.6 reet); minimum dally , 6 a cre-reet Sept. 21. 

Remarks .- Reservoir Is rormed by earth dam raced with loose rock; dam completed and storage ----oSgaii In 1937. CaJ)Scity, 57 acre-reet between gage height 15.1 reet (bo ttom or reservoir, survey or 1941) and 34.6 t eet (approximate level or tloor In ea rth channel 

spillway). No dead s torage. Water Is diverted below rese rvoir tor Irrigation. 

Capctelty table (gage he i ght, i n f eet, and contents, 1n aere- reet) 

(table derived. from data f"urnlshed by State engineer' a 

ott1ce baaed on thei r 19 41 survey) 

15 . 1 0 . 3 17. 0 2.3 19 . 0 6 . 9 22 . 0 25.0 

28.0 

11.3 

19 . 2 

28.6 

31.0 

34.0 

36 . 0 

Monthly gage height and contents, 19~ 41 

Date 

Dec. !Sl , 19:S9 . ........... . 

Calendar rear ... . .. . ... . 

Jac . 31, 1940· ....... .. . . . Peb . 2'9 ••. ..••• • •••• ••• ••• liar . :)! •• •.••• ••.. ••• ••••• 

Apr. 30 . . .... . ... .... . .. . . Kay 30 .................. . JUne :5-() •• • •• • •• • ••• • , ••••• 

July 31. ... . .. ... ....... . . 

Aug. 31 .•...••... · .. . · · • .. 

Gag( r~:~ftt 

27 .9 

33. 6 34. 8 34.8 

33 .3 29 . 8 

25 . 4 20.6 

15.5 

Contents (aere - reet ) 

28 - - ---

52 

58 

58 

51 

36 

20 

g 

1 

Change in contents dur!.ng month 

(a cre-teet) 

------ +24 

+6 

0 

- 7 -15 

- 16 

-11 

- 8 

20.2 8 +7 Sept . 30 ... ... . .......... .. 1--- ---1----- -1-------- - 20 The per1od .. .......... . . 1------+------f----..::..::--- 22 . 6 29 . 5 Oo t . ~1, 1940· . ... o o• o .. o o 

RoY. ~Oo . o oo. o•• oo•• . . . . o . Dec. lo .... o .. o . . . ... . o., 34.6 

Calendar yoar 19 40 .. . .. . 

Jan. 31 , 1941 · . . .. o .. o .. o. 1'35.2 

Peb. 28 .•.. , . ...... o •••••• 31.3 

Mar. 31 . .. . . o ••• , •••••••• , 32.1 Ap·r. 30 . . o, . . . .. o . . , .... , . 33. 2 34 .3 

35 .6 .. , 31 .... . ... ......... . . J\lne 30 .................. . 31.3 

24.3 

22. 4 

J\llr 31 .. ... . . ... .. ...... . Aug. 30 .. . ... . . ..... .. .. .. Sept . 3() .. . . .. . . . .. . . , •.. . o 

Wa t o r year 1940-41 . . .. . , 

t Gage height a.nd contents at midnight. t Par t ly eatlJMted. 

~ 

1-

12 .. 35 +23 

57 +22 

+29 - - ---- 60 +3 

42 -18 

45 +3 

50 +6 

56 +6 

62 +6 

42 - 20 17 -25 

12 - 5 

+4 
260 RIO GRANDE BASIN 

Paguate Creek nea r Laguna , N. Mex . 

Location.- Water-stage recorder, lat . 35°09 ' , · long. 107°25 ', In sec . 30 T. 11 N., R. 5 W., 

300 r ee ups relll'! fro'll upper d i version dam, 3 m!les northwest of Paguate Pueblo, 5 

miles upstream from mouth , and Si m!les northwest or Laguna . 

Records available .- F'ebruary 1937 to September 1941. 

Extremes .- Max!mu.'ll discharge during year, 172 second-f ee t Sept. 1 (gage height, 4 .25 rest), 

from rating curve extended above 2C second-f eet on baSIS of slope-area date !na tion at gage he i ght, 2 .66 teet; mi nimum dally, 0.4 second-root Aug . 6. 

1937-41: Maximum d ischarge, 174 second-teet Aug . 1, 1937 (gage heigh t, 4 .28 reet), 

!rom rating curve extended above 20 second-feet on basis or slope-area detenn!nat!on at gage heigh t, 2.66 ree t; minimum da lly, 0 .2 second-foot several days In June and 

July 1937, Aug . 20 , 1938 . 

Remarks.- Records !air except those ror periods or Ice errect and no gage-height reco rd , ----wnT'Cii are poo r . No d iversion above sta 1on; several balow . 

Discharge , !n second-teet. water year October 1940 to September 194~ 

Day Oct. Nov . Dec . Jan . Feb . War . Apr . llay June July Aug . Sept . 

1 0 . 6 1.2 1.6 1. 4 1.1 2 . 0 14 2a 0 0 .7 0 . 6 15 

2 .7 1.2 1.6 1. 4 1.0 1..9 a .4 40 2 .5 . 7 .5 &:5.0 

3 .7 1.2 l.a 1.2 1.0 l.a 7.~ 20 2 . 4 . 7 . 5 al.6 

4 .7 1.2 l.a .9 1.0 1.9 5. 7 44 2 . 1 . a .6 •• g 

5 . a 1.1 La bl.O 1.1 1.9 9 . 2 26 2 . 0 . a .5 a. 7 

6 .a 1.2 l.a 1.1 1.1 1.9 8 .7 18 1.9 . 9 .4 a . 7 

7 . a 1.4 1.8 1.0 1.2 1.9 6 .6 15 1.9 . a . 9 a.6 

8 .a 1.6 l.a 1.2 1.~ 1.6 7 .9 12 2 .5 .7 .7 &.6 

9 . 8 1.6 l.a 1. 2 bl.2 l.a a . 7 11 2 .2 . 9 . a a . 6 

10 .8 1.6 1.8 1.2 1.3 1.8 11 9 . 8 1.8 .6 .7 . 6 

11 . 8 1.6 l.a 1.2 1.!- 2 . 0 9 .2 9 .0 1.6 . 6 . 6 .6 

12 .8 1.6 1.8 1.4 b l.4 2 .4 8 . 2 8 .2 1.4 .. ~.6 .6 

13 .9 1.6 1.8 1.3 bl.6 2 .5 ~ 7.1 1.4 .7 . 9 .6 

14 .. 1. 4 l.e "" bl . e ... . .. &.1 L • .e .7 . 6 

15 .9 1.8 1.~ 1.2 bl. 5 2 .6 5.3 s .o 1.4 .7 4 . 6 .8 

16 .9 1.9 . 8 1.1 b1.8 7 6 . 4 4.4 1. 4 .6 1 . 0 . 7 

17 .9 1.9 1.1 .9 b2.0 4.6 6 .4 ~.9 1 .7 . e .9 .6 

1a .9 1.9 1.2 1.1 2.1 5.5 s.~ 3.5 1.4 .6 .7 .7 

19 .9 2.0 1.2 1.2 2.1 a .a 3 . 5 

·~ 1.1 .6 . 6 . a 

20 .9 2.0 1.0 1.2 2 . 1 13 3.~ 2 .6 1.1 1.0 1.4 ' 6 ,2 

21 .a 2 . 0 bl.O 1.2 2 . 2 9 .a 4.1 14 1.0 .9 , g 1 . 0 

22 .e 2. 0 1.0 bl.l 2 . 2 6 . a 2 . 6 20 1.0 .a .7 10 

23 .a 2 . 0 1.0 1.2 2 .4 16 4.4 61 1.0 . 7 . 6 1 .9 

24 .a 2 . 0 1.1 1. 1 2.2 19 9 .a 33 1.0 . 6 .6 .a 

25 .9 2 . 0 1.4 1.~ 1.9 6 .4 u a15 1.0 .6 .6 . 6 

26 . a 2 . 0 1.2 1.2 1.6 4.6 52 a9 .9 .6 .6 .6 

27 . a 2 . 0 b .9 1.2 1.6 4.1 ~9 a7 .a . a .6 .6 

28 . 9 1.9 bl.O 1.2 1.6 6 .a ~ 5 . 9 .a • 7 .5 2 .1 

29 1.0 1.6 1.2 1.3 ll 25 5 .0 . a .6 . 9 16 

30 1.0 1.6 1.~ 1.2 1 5 19 4.4 .a .6 .a 2. 4 

31 1. 1 1. 4 1.1 la 3.3 .6 .a 

Month Second- Maxi au• lliniau. lie an Runott in toot-day a acre-feet 

October ........... ... . . . . .. . ... . ... ... .... . 26 . 0 1.1 o . e o .a4 52 November . ..... . .. .... . . .. . ... 50.1 2 . 0 1. 1 1.67 99 December . ·· ···· ······ · ...... .... ..... .. 43 . 9 La . a 1. 42 a 7 

Calendar year 19 40 ... .... ...... ......... 396.6 5.a . 3 1.08 786 

January .. ·· · ··· ···· · ····· ·· · · ··· 36 . 6 1.4 . 9 l.la 7~ 

February . .... ... . . . .. . . ......... 44.5 2. 4 1.0 1.59 68 March . . . .. . . ... . .... . . . . .. ..... . .. . . . ...... la3 . 6 19 1 .6 5 . 92 364 April. .. .. . . . .. . ............. . ... . 377.a 52 2.6 12 . 6 749 llay . .. .. . . . .................... . ...... . . 454 . 5 61 2.6 14.7 901 Ju.ne .. ... ... . . • .. ... . . . . . . . . . . . . . . . . . 45.3 3 .0 . a 1. 51 90 J uly .. ·· ······ ··· ··················· ······· 21.9 1.0 .6 .71 43 August .. ....... . ... . .. 2a .a 4 . 6 . 4 .93 57 September . ..... ··········· ··· ········ ······ 72 . 6 16 . 6 2 . 42 144 

Water year 1940- 41 ..... .. ... .... ...... .. ~a5.6 61 . 4 3 . ao 2,750 

1J :!c~~~£~~'f:S ~ t~r(6~go (: ~:)· io~ !e~~~r~:~ · ~e:~: ~~\f a~~ ; > 1~~9 :s !~~ :fi~ ; Aug. 12 (& p.m.> a Ho gage -height r ecord; d1acharge computed on baaia or weather r ecorda and recorda for San Joae 

River near San P1c1el. b Stage-dhcharge relation arrected by i ce. 
Principal diversions In San Jose Rlver Basin, N. Mex. 

Recorda or discharge are collected !or seven dl tches that divert water !rom the San 

Jose R1 ver and tributaries between the gap;l np; stations on the San Jose R1 ver near Grants 

and near Laguna, and ! or two reservoir outlets. Each or these ditches Is equipped wl th a water-stage recorder !or collecting gage-height records and wl th a Parshall flume or weir. Water diverted by these ditches Is used ror Irrigation In the valley o! San Jose 

River. 

McCartys south side ditch diverts !rom right bank In SEt sec. 30, T. 10 N., R. 8 W. 

Recoi'ds available, r'ebruary 1940 to September 1941. 

McCartla non;h side ditch diverts !rom le!t bank In SEt sec. 29, T. 10 N., R. 8 W. Records ava !able, hbruary 1940 to September 1941. 

Acom!ta Reservoir Outlet releases water !rom Acomlta Reservoir which stores water diverted 

by McCartys north s ide ditch . Gage Is !n SEt sec. 29, T. 10 N., R. 7 W., 500 reet downstream !rom Acomlta Reservoir. Records available, June 1938 to September 1941. 

Sea'lla-ParaJe ditch diverts rrom right bank In NWt sec. 35 , T. 10 N., R. 7 W. Gage Is 1 mlle downstream !rom head gate. Records available, March 1937 to September 1941. 

CasaBlanca ditch diverts !rom right bank In NWt sec. 5, T. 9 N., R. 6 W. Gage IS lt maea aownstream !rom head gate. Records available, February 1937 to Septembe r 1941. 

New ~ d! tch d! verts !rom le!t bank In NEt sec. 3, T. 9 N., R. 6 W., 400 teet up- sl'ilari1trom gaging station on San Jose R1 ver near Casa Blanca. Gage Is halt a mlle 

downstream !rom New Laguna wasteway and three-Quarters or a m!le downstream ! rom head 

gate . Records avallable, February 1937 to September 1941. 

Laguna ditch diverts !rom right bank at New Laguna Reservoir In center or sec. l , T. 9 

N., R. 6 W. Records available, October 1936 to September 1941. 

Mea! ta dl tch d! verts ! rom r!gl!t bank In NWt sec. 12, T. 9 N. , R. 5 W., at gaging station on San Jose Rlver, near Laglllla. Recorda available, June 1936 to September 1941. 

~te Reservoir OUtlet releases water !rom Paguate Reservoir on Cebolleta Creek. Gage n NWt sec. 25, T. 10 N., R. 5 W., 600 teet downstream !rom reservoir. Records avail- able , February 1940 to September 1941. 

Several other ditches divert !rom San Jose Rlver and tributaries, but no records tor them were obtained . 

01Yera1ona , in aore-reet, water year October 1940 to Septeaber 19'1 

ltoOartye ltoOartya Aoc.ita se-a- Oaaa s ... Laguna nealta Paguate 

1'\ontb aoutb elde north elde RIII'M'Oir Paraje Blanc a Laguna Rea eZ"'f'oir 

ditoh d..ltob Outlot dltoh d1toh d ltoh dltob ditch Outlet 

October ...... .. ..... . 220 152 5.0 ~8 65 108 0 4.0 0 

Jllo"f'..,ber • ..•••.••••• • 17 125 0 72 72 1l!S 0 0 0 

Deoe·aber .•.. ..... •. •• 20 400 2 .0 77 :14 22 0 0 0 

J'anu.a.ry •••••••••••• , . s.8 402 6.0 0 0 0 0 0 0 

February ............. 0 &4 10 0 0 0 4,4 0 0 llar<>h ... ............ . 0 20 12 0 0 18 1 .4 80 0 

Apr il .. ... . ......... . :15 8:1 1.2 81. 1H 86 1 . 0 'n 0 

1'\&Jo •• ••••• o o o •• o ••• o lll 21&7 H 1:18 75 H2 0 124 0 

June .. . .... .. . .•...•• 1SO 2:17 0 .-4 105 100 147 9,9 177 56 

JUly .. .... ........... 146 284 ~00 120 n !HI 20 109 98 

Auguot ....... .. ...... 1:18 2S9 :148 1~S 13<5 108 2S 16S 146 

September • ....... .•• • 178 271. 1.58 108 87 80 1.2 121 109 

Water year 194.<>-41 1,006 2 ,584 87& 987 7&4 928 71 . 7 8 75 408 

New Laguna d! tch wasteway near Casa Blanca, N. Mex . 

Location.- Water-stage recorder and z...;oot Parshall flume In NWt sec . 3, T. 9 N., R. 6 W. , 7oo teet downstream rrom waste gats and li miles east or casa Blanca. 

Records ava!lable .- March 1937 to September 1941. 

Remarks .- Flow represents unused water returned !rom New Laguna ditch to San Jose Rlver 

--oerOw station on that stream near Casa Blanca. 

Runott, 1D aore-.teet , .,.tor year Oo~obe:r 1940 to_September 194-l 

October ..... 150 April........ :579 ll'oTeabe:r .. ,. 60 Kay.......... 598 December .. . . 41 June......... 230 Januarr. . .. . .8 .Tuly . ........ 9.1 Pobruory.... 0 Auguot . ... ... 154 March ....... :596 September.... 1.6 

Water year 1940-·U ... ........ ,2, 010 
262 RIO GRANDE BASIN 

Socorro main canal north at San Acacia, N. Mex . 

Location .- Weter-stage recorder, lat. 34°15 ', long. 106°54' , In SEtNWt sec. 1, T. 1 S . , R. I II . , at San Acacia, halt a m1le d('wnstream rrom point or diversion rrom Rio Grande . Datum or gage Is 4 , 659 .74 reet above mean sea level , datum or 1929 . 

Records available .- April 1936 to September 1941. 

Extremes.- Maximum discharge during year, 260 second- rest Aug. 15 (gage height, 5.85 reet); no n ow at times. 

1937-41 : Maximum discharge , 315 second-rest sometime In period July 22-24 , 1940 

(gage height 5 .67 reet , rrom recorded range In stage); no now at times . 

Remarks .- Records ralr except those ror peri ods or rregmentary gage-height record, which are poor . Canal diverts water rrom ri ght bank or Rio Grende ror Irrigation . Three 

acequlas , together Irrigating about 300 acres , divert water rrom canal above station. 

Discharge . ln second-teet . water year Oc t ober 1940 t o Septeaber 1941 

Da Oct. Nov . Dec . J an . Feb . Ma r . Apr . Way June July Aug . Sept. 

l 128 124 0 100 102 116 116 151 25 

2 156 106 0 129 0 ~1 121 137 7l 

3 163 40 0 1 27 15 146 116 86 1 22 

4 154 162 0 127 0 145 142 157 170 

5 130 106 0 142 0 150 152 162 1 62 

6 114 186 0 104 0 rl42 105 1"74 135 

7 127 169 0 eo 0 151 146 160 62 

8 136 132 0 110 8 0 134 150 180 167 

9 145 134 47 153 51 131 149 89 168 

10 145 79 70 136 15 128 160 99 161 

11 109 157 106 150 0 162 136 30 165 

12 106 139 114 116 0 94 144 148 171 

13 !40 156 113 97 0 100 142 18 128 

14 141 155 llO 150 105 162 140 33 110 

15 113 116 121 158 16 2 142 142 182 168 

16 134 56 108 H6 162 1U. Hll 160 1.6'7 

17 123 73 118 160 130 138 156 86 146 

18 lR 68 23 160 136 137 150 H3 156 

19 1~e 7 2 80 145 0 143 138 1« 137 

20 116 94 98 97 130 nse 143 72 

21 ~~ 4~ 100 132 0 149 138 138 0 

22 57 114 0 111 130 142 0 

23 

~~ c 0 137 0 125 136 126 7 

24 ~ 74 158 0 132 135 64 1 

25 13 7 4 101 0 134 128 184 0 

26 i~ ~~ 69 42 0 142 122 178 30 

27 81 69 0 104 94 1 68 132 

28 r~~ "( 116 103 0 42 150 196 46 

29 0 101 123 95 130 138 150 0 

30 g!; 0 0 148 132 150 169 78 0 

31 77 118 148 53 

Month Second- Ma.xllltm Min i•ua lloan Runoff i r. root-days acr&-teet 

October .. . . . .. .. ..... . . . ············· ·· ··· · 3 ,968 163 40 128 7.870 Novembe r . .. . .. .. . . . .. .. . ... ....... ... .. .... 2 , 608 186 0 86 .9 5,170 December . .... . .. .... .... .. .. .... .. . 0 0 0 0 0 

----- -- Calendar year 1940 .. .. .. .. ..... .. .. ..... 30 ,436 218 0 8 3 . 2 60,380 .., ____ __ January .. .......... . . .. ... .. ........ ...... . 0 0 0 0 0 

February . .. . . .... . . .. .. ..... .......... .. ... 0 0 0 0 0 

March . . .... .. .. . .. ....... . .. .. .. . . . .....•.. 1,853 121 0 59.8 3,680 

April . .. ... . . •. . ... .. •.. . .•. .•.. .. ...• . .. . : 3,709 160 42 124 7,:560 

lley . . . . . ... .. • .. •.••. • •. • .• . .••. • .• • . •.. •.• 1, ... 20 182 0 45 .8 2,820 

June . . ... . . ..... ..... ... ........ ... .... 3 , 945 162 42 132 7,820 

July . . . ... ...... ............. ...... ..... 4, 274 169 94 138 8 ,480 

August .... . . . . . . . . . . . . . . . . . . . . . 3 ,961 196 18 128 7,860 

September . ..... .. ...... ... .... . 2 ,889 171 0 96.5 5 , 7:50 

Water year l94D-41 ....... .... ... .. .. . 28 ,627 196 0 78.4 56 ,7GO 

t Fragmentary gage-height record; dlecharge compu ted rrom partly estimated gage-he1gbte. 
RIO GRANDE BASIN 

Alamosa River near Monticello, N. Mex. 

Location. Wate r-stage recorder, lat. 33°35 ', long. 107°36', in swt sec . 31, T. 8 S . , 

R. 7 w., at Alamosa dam site and old Fo r t OJo Caliente , just downstream rrom Wildhorse Creek , and 15 m!les northwest or Monti cello . 

Drainage area.- 470 square miles. 

263 

Records available . - May 1931 to September 1941 in reports o r Geological Survey. Octobe r 

to December 1929 and May to December 1931 in reports o r State engineer . 

Extremes . Maximum d i scharge dur ing year, 910 second-feet Aug . 15 (gage height, 5.16 reet), 

f rom ret ing curve extended above 120 second-teet by logarithmic plotting; mi nimur.1 dally, 

6 .2 second-teet Mar . 26- 28 , Mar . 30 to Apr . 1, Apr. 7 , 8 . 

1931-41 : Maximum gage heif ht, 13.6 teet Aug. 21, 1936 (discharge no t determined}; 

minimum dally discharge, 5 . 6 second-teet Jan . 9 , 1932 , Aug . 28-30, Sept . 3, 1936 . 

Remarks .- Records good below 10 second-t eet, poo r above. Entire no rma l now dive rted below station ror irr igation . 

Discharge , l o second-tee t , water year Oc t obe r 1940 t o September 1941 

Da Oc t . Hov. Dec . Jan . Feb . Mar. Apr . llay June July Aug . Sep t . 

1 7 . 0 7.S 7 . 5 7 . 5 7 .0 6. 6 6 . 2 12 7 . a 8 . 0 9 . 1 12 

2 7 . 0 7 .8 7 .5 7 . 8 7 . 0 6. & 6. 4 H 7 . 8 8 . o 8 . 8 9 , 6 

3 6 . 8 7 . 5 7 . 5 7 . 5 7 . 0 5 . 6 6.4 H 7 . 8 8 . o 8 . 8 9 , 0 

4 7.0 7 . 8 7 . 5 7 . 5 7 . 3 6 . 6 6. 4 13 7.8 8 . o 8 . 8 9 , 0 

5 7.3 7 .8 7 . 5 7 .5 7.3 6 .4 6.4 12 7 . 8 12 8 . 8 8 . o 

6 7.0 7 . 8 7 . 8 7 . 5 7. 0 6. 6 6 .4 12 7 . 8 7 .3 8 . 8 8 . o 

7 7 .0 8 . 3 7.8 7 .3 7.5 6 . 6 6. 2 15 7 . 8 7.3 8 . 8 7 . 8 

8 7 . 0 9 ,0 7 . 8 7 . 5 7 .5 6.4 6. 2 15 7 . 3 7. 0 8 . 8 7 . 8 

9 7 . 0 7 .8 7 . 5 7 . 5 7 . 5 6.4 6.4 15 7 . 3 7 . 3 9 . 6 7 . 8 

10 7 .3 7 . 8 7 . 5 7 . 5 7 . 5 6.4 6.4 16 7 . 3 7 . 5 11 7 . 8 

11 7 . 3 7 . 8 7 . 5 7.5 7 .5 6 .4 6. 6 23 7 . 3 7 . 8 9 . 1 7 . 8 

12 7 . 5 7 . 8 7 . 5 7 . 5 7 .0 6 . 6 6. 6 15 7 .3 8 . 0 9 . 9 8 . 8 

13 7 . 8 7 . 5 7.5 7 . 3 7 . 0 6.6 6. 8 13 7 .3 9.1 10 8 . 3 

14 7.5 7 . 5 7 . 5 7.3 7 . 0 6. 6 6.8 ll 7.3 7. 3 9 . 1 8 . 0 

15 7 . 5 7 . 5 7 . 5 7 . 0 7.0 6. 8 6. 6 9.9 7 . 5 6 . 8 49 7 . 8 

16 7 . 5 7 . 5 7 . 5 6 . 8 7 . 0 6. 4 6.4 8 . 8 7 . 5 7 . 0 75 7 . 8 

17 7.5 7 . 5 7 . 5 6 . 8 7 . 0 6 .4 6.4 8 . o 7 . 3 13 11 7 . 8 

18 7.5 7 . 8 7 . 8 6. 8 7 . 0 6 . 4 5. 4 7.3 7 . 3 10 8 . 8 17 

19 7 . 5 8.o 7 . 5 6 . 8 7 . 0 a6 . 4: 6.4 7.3 7 . 3 6. 8 8 . 3 10 

20 7.5 8 . 0 7 . 5 e.8 6.8 a6 .4 6 .4 7 . 3 7 . 0 27 8 . 3 8 . 0 

21 7 . 5 8 . o 7 . 5 6 . 6 7 . 0 a6 . 3 6.4 8 . 0 7 . 0 8 .1 15 8 . 0 

22 7. 5 8 . 0 7 . 3 6 .6 7 . 0 a6 . 3 6 . 6 9 . 3 7 .0 7 . 0 12 8 . 0 

23 7 .5 8 .0 7 . 3 &. 8 7 .0 a6 . 3 6. 4 8.8 7 .3 20 11 7 . 8 

24 7 .5 8 . 3 7 .3 6. 6 7 . 0 1>6.3 6.4 9 , 9 8 . 0 7 . 0 12 8.0 

25 7 .8 8 . o 7 . 3 6 . 6 7 . 0 a6 . 3 6 . 6 10 7 . 8 7.0 11 8 . 0 

7.8 9 . 0 7 . 0 6 . 8 7 . 0 a6 . 2 7 .5 9 . 9 7 .8 7. 0 11 8 . 0 26 7 .8 8 . 0 7 . 3 6 . 8 7.0 a6 . 2 11 9 . 1 7 . 8 30 10 8 .3 27 7 . 8 7 . 8 7 . 3 7 . 5 6 . 6 6 . 2 14 8 . 6 7 . 8 7 . 8 10 9 . 9 28 7 .8 7 . 8 7 .3 7 . 3 6. 4 13 8 . 3 7 . 8 8 . 3 10 82 29 7.8 7 . 3 7 . 0 6. 2 12 7 .8 7 . 8 8 .3 10 17 30 7 .8 7 . 8 6 . 8 6. 2 7 . 8 9 . 6 10 31 7 . 8 

Second- Winiau Mean Runort in Month too t-days Ma.xl•ua acre-feet 

230.1 7 . 8 6. 8 7 . 42 456 Oc tober ........... ···· ················· 235 .0 8 .3 7 . 5 7 . 83 466 Noveaber ......... ....... ... ..... ........ ... 231 . 9 7.8 7.0 7 . 48 460 Oeoeabe r .......... ... .... ~ ..•........ . . . ... - ------ Calendar year 1940 .... ... .. ........ ..... 2 , 994 . 5 82 6. 0 8 .18 5 , 940 

---- --- 7.13 439 January . .... ... ...... ......... . .. .. . .. ..•.. 221.1 7 . 8 6. 6 

198. 5 7 . 5 6 . 6 7. 09 394 February . . . ................................ 199. 1 6 . 8 6 . 2 6.42 395 March ... . , . ... ... .... . .... . .. . . . .......... . . 218 . 7 14 6. 2 7 . 29 434 April . .. ... .......... .. .... .... ........... 346-l 23 7 ,3 11.2 68 6 llay . . .... .. .. . • .. . . . .... . • .. . . .• . .......... 225 . 7 8 . 0 7 . 0 7 . 52 448 June ......... . .. ..... . .... ..•.. . ... . . ...• · 303 . 3 30 6.8 9 , 78 602 July .......... , ... ....•..•. . •. .• . .••.. . .• · . 411 . 8 75 8 . 3 13. 3 817 Augus t ...... ....... ............ 341. 1 82 7.8 11.4 677 Septeabe r ...... . ........... . . ........... 

Water yea r 1940 -4 1 3 , 162 .4 82 6. 2 8 . 66 6 , 2? 0 ................ Pealr: d.laoharge.- rtay 11 ( 6 f.m. ) 402 ae o .-rt. ; JuJ. y 17 (9 p.m. ) 345 sec .-.rt. ; J\lly 20 (12: 30 p .a.) 

860 aec.-tt .; July 23 (1 p. m. 650 s eo . - r·t . ; Aug . 15 ( 7 : 30p.m. } 910 s eo. - r t. ; Aug . 16 (2 p .m.) 630 

aeo.-rt. interpola t ed . • Wo gage-he i ght r ecord; dlaoharge 
264 RIO GRANDE: BASIN 

Pecos River near Pecos, N . Mex. 

Location.- Water-stage recorder, lat . 35°42 ' 25", long . 105°41 ' 00", in NEtNE:t sec . 17, '!'. I I N., R. 12 E. , at bridge on pri vate road , 600 f eet upstream !rom Indian Creek, 

2 m11es downstream !rom Holy Ghost Cr eek, and 11 m1les north or Pe cos. 

Drainage area .- 189 square mlles (contributing area) . 

Records available .- March 1910 to December 1914 (published as Pe cos Ri ve r near Cowles) and October 1930 to Septembe r 1941 In reports or Geological Su rvey. Ma rch 1910 to December 1931 (published as Pecos River near Cowles prior to 1926 ) In reports or State engineer. 

Average discharge .- 11 years (1930-41) , 111 second-feet. 

Extremes.- Maximum discharge during year, 1,960 second-feet May 14 (gage he ight, 4.57 t ee t); mi nimum dally, 23 second-teet Jan. 4. 

1930-41 : Max i mum discharge, that or May 14 , 1941; minimum dally , 6 .1 second-teet 

Jan. 16 , 1934. 

Remarks .- Reco rds gooel to May 15, except those tor peri oels or t ee errect, which are poo r; -rafrt he rea!ter. 

Discharge , in second-feet , water year October 1940 to Septe•ber 1941 

~ Oct . Nov . Dec . Jan . F'eb . Ma r . Apr . llay June Jul.y Aug . Sept . 

1 94 57 b~6 4~ b~O 52 125 470 l , OZ50 566 190 12~ 

2 e6 58 •b:S6 ~s b 27 5~ 112 60~ 964 50S 1G7 114 

3 88 57 b~5 ~ ~1 49 101 596 ~1 464 212 105 

4 112 57 ~7 b2~ b29 46 95 590 899 453 216 97 

5 99 49 b~7 b~O b3l •49 107 596 9~9 410 209 92 

6 95 55 b41 8 ~~ 44 114 786 ~9 410 216 90 

7 86 52 b~8 b~4 ~4 4~ 107 998 9 72 ~1 2H 86 

8 81 5~ b40 ~5 b29 36 • 110 704 947 ~56 ~~4 81 

9 81 52 b40 b35 b29 b46 U2 1 , 250 875 538 570 79 

10 84 47 u 8 l>O 43 1.31) 1 , 330 778 >48 5:>0 '76 

ll 88 b53 42 b42 3 2 42 125 ,3~ 725 5 43 317 73 

12 88 b35 42 b46 ~0 b44 142 1,500 676 3~0 352 74 

13 90 ~0 b41 b45 30 47 181 1 ,720 683 296 426 76 

14 9 2 b33 b35 b38 ~2 47 194 1,720 711 271 375 76 

15 88 b37 b 2S b40 34 44 237 1 , 660 718 264 356 79 

16 82 b40 b 2 5 b33 35 42 248 1,550 732 256 ~~8 71 17 e 1 b45 b 28 •b26 35 ~ 283 1 ,500 830 264 352 68 18 78 49 ~5 b 28 36 58 267 1,440 91.5 237 338 7~ 

19 76 47 b32 b~ 36 71 22~ 1,330 955 2 48 ~00 76 20 74 b45 ~0 *b36 38 86 187 1 , 170 964 291 279 118 

21 74 b43 b~~ ~8 ~8 84 167 1 , 100 915 252 276 132 22 73 44 b38 b3~ ~7 76 150 1 ,320 875 2 40 260 226 23 71 42 •b45 ~6 40 ~ 140 1,~20 838 226 226 420 24 70 42 b50 ~4 ~9 76 130 1,270 899 212 212 283 25 6 8 41 b45 b~8 41 76 138 1,220 915 187 194 216 

26 67 43 b45 ~1 ~8 74 1~ 1,180 822 190 172 181 27 67 37 b42 ~~ ~4 76 206 1,220 765 2~0 168 161 28 67 b~5 b45 35 4~ 79 256 1,160 718 197 156 187 

29 6 4 ~6 b42 ·~6 - 82 271 1 , 120 662 190 145 80S 30 *65 b37 b42 ~8 - 86 352 1,080 590 170 14.2 690 

31 58 - b43 ~3 - 103 - 1,080 - 175 128 -

Month Second- llaJtiJiua Miniaua lie an Runorr in toot-days acre-teet 

October .. . . . . . . ... .. . . . .. . , . .. ............. 2,487 112 58 80 . 2 4,9~ 

November . . . . . . . . . . ....... . ~ . .. ...... .. .. ... 1,351 58 30 H . 4 2,640 

Dece•ber ... . . . .. .......... ........... .. ..... 1,186 50 2 5 ~8 .~ 2,350 

------- ------ ------ --- - -- -- ---- Calendar year 1940 ,,, • o 1,, o • o • • o • • . • • '•' 36,883 460 16 97.5 70,760 

------- --- - --- - ------ - -- - - - January .. ....... . ... . ... . ... . .............. 1 ,101 46 23 ~5.5 2,180 February ...... . ................... . ........ 951 43 27 ~4.0 1,890 March .. .......... . .. . ................•. .... 1,879 103 ~6 60.6 3 , 730 April. ......... , ....... , ..•................ 5,166 352 95 172 10, 260 May ......... . ...... . ......... . . . ........... :56,912 1,720 470 1 , 158 71 , 230 June . . . . .. .... . ........... ................. 25,192 1,050 590 840 49,970 

July . ... . . ·· ························· ······ 9, 283 566 170 299 18,410 

August . . . . . . . . . . .. ...... . . . . . . . . . . . . . . . . . . . 8,020 426 128 zsg 16,910 

September . . ... ...... ... ..... .. ..... ... .... 5,031 808 68 16S 9,980 

Water year 1940-41 ... ........ . . . . . . . . . . . 97,639 1,720 2~ 267 193,600 

Peale d1eebarse.- Ma7 14 (8145 p. m. ) 1,980 aee .-rt.; Sept . 23 (8 a ••• ) 554 eec.-t't.; Sept. 29 (1 p. m.) 1,!$00 aec . rt. 

• Winter dleeharge meaeurement mad.e on th is day. b Stage-dlseMrge relation affected bJ lee. 
RIO GRANDE BABIN 205 

Pecos River nea r Anton Chico, N. Mex. 

Location.- Water-stage r ecorder, lat. 35.10'50', long. 105°06 ' 20', In Anton Chico Grant , 2 miles upstream from Canyon Blanco, 2! m!les southeast or Anton Chico, and 10 m!les downstream from Tecolote Creek. 

Drainage area .- 1,050 square miles (contri buting area). 

Records available .- Apr!l 1910 to December 1914 and October 1930 to September 1941 In 

reports or Geological Survey . April 1910 t o December 1931 In reports or Stete engi - neer. Pri or to July 2 , 1937, station was, during successive periods, at five different sites, ranging from a sixth or a mi l e to 5 miles upstream from pr esent site. 

Average discharge.- 11 years (1930-41) 157 second-feet . 

Extremes .- Maximum discharge during year, 17,400 second-feet June 3 (gage height, 12 . 62 teet), fr om rating curve extended above 2 , 750 second-teet on basis or sl ope-area determination at 20.34 reet; minimum dally, 20 second-teet Nov. 14. 

1930-41 : Maximum d ischarge , 40 ,300 second-teet June 1, 1937 (gage height, 20 .34 reet , present site and da tum); by slope-area method ; no now at times . 

Remarks.- Records fa ! r except those ror peri ods or Ice errect and those for pe riods or ---no-gage-he i ght record, all ot which a re poor. Several diversions above stetlon tor I rr!gat1on . 

Disobarge in second-teet water year October 1940 to September 1941 

Da.l Oct . Nov . O.c . Jan . Fob . Mar. Apr . Way June July Aug . Sept . 

1 9~ 66 60 88 H ~ 526 1 ,100 1 ,520 a700 214 a350 2 92 ~ 60 86 4l5 87 542 ~20 1, 470 d9CO 213 a250 3 92 50 46 81 ~8 2 480 2 , 020 2, 210 n760 337 a200 4 a6 50 40 50 ~7 140 470 1 , 780 2 , 130 a600 229 a.lSO 5 98 48 ~8 27 42 126 450 1 ,540 1,830 a700 214 alOO 

6 98 47 ~9 2~ ~9 HO 465 1 , 480 1,420 a450 199 a90 7 92 43 40 •b35 H 12~ 480 1 , 680 1,260 &450 187 .eo 8 82 46 40 1>35 46 111 455 1, 820 1 , 210 a450 190 a70 9 ~ H ~9 1>36 H 82 445 1 , 980 1 , 170 a400 217 a70 ' 0 7 2 40 40 b40 42 n 450 2 , 020 1,070 a350 490 a60 

11 71 40 40 ~ ~9 109 470 2, 400 971 a400 4~0 a 55 12 78 39 47 47 42 94 460 2,960 874 a700 874 aSS 13 77 b28 5~ 52 H 120 490 2 ,540 802 2, 000 831 •55 14 76 *b20 60 47 H 120 648 2,600 802 8 48 480 a 55 15 7 7 28 40 42 ~9 118 548 2 ,540 826 d700 426 55 

16 78 50 b28 38 42 107 572 2 , 340 1,090 a300 394 57 17 78 40 1>30 37 48 98 578 2,140 1 , 100 d300 357 57 18 75 H 44 ~1 62 111 690 2, 080 1 , 020 &250 357 796 19 72 42 • 57 28 27 136 642 1,960 1,060 a 200 1 , 240 324 20 89 62 45 • 28 58 175 •500 1,840 1 , 060 a.200 373 188 

21 68 ~ 40 44 61 305 a450 1 , 840 1,020 ••00 321 693 22 8 4 42 

·~ 45 8 4 412 37~ 2,340 971 a350 502 3 , 100 23 81 50 47 39 77 403 369 2 , 470 962 d350 2ae 2,560 24 69 b70 50 36 a6 456 369 2,340 1, 240 a300 226 1 , 150 25 67 68 60 38 98 702 346 2,280 1,390 250 202 702 

26 58 69 88 40 91 504 373 2 , 080 971 232 165 548 27 68 66 57 38 80 480 564 1 , 900 866 223 1, 020 421 

28 56 • 66 61 38 71 d430 980 1 , 900 802 39\J 1,050 1,410 29 •57 47 81 41 - c1450 971 1,POO 730 246 a850 4, 210 

30 57 48 62 43 - 480 858 1, 720 a650 214 689 2,470 

31 56 - 86 4:! - 490 - 1, 660 - 211 a700 -

Second- IUn iaua Moan Runoff i n Month t oot-days Ma.xi•u. acre-tee t 

Oc tobe r .......... 2,26& 98 56 7~ 1 4, 490 . ..... ........... ......... Nove•ber 1 , 375 70 20 46 . 8 2, 730 .. . .. . . ..... . ......•..•............ December 1 ,469 68 28 47 . 1 2 , 890 . .......... . ...... .. •... . ... . ...... 

------- ------ ------ ------ --- - - - Calendar year 1940 ........•.•.....•.•..• 40,697 905 2 111 80 , 510 

------- --- - - ----- ------ ---- - - January ......................... . .• ········ 1, 273 68 23 41 . 1 2 , 620 

Peb ruary . ...........•.. . ......... · · · · · · · · · · 1,498 98 37 53 . 5 2,970 

March ..... .. . . .............. ···· ········ ··· 7 , 470 702 ~ 241 1 4, 820 

April .... ... •..•. . ..•..•..• . .•... · ·· · ······ 16, 722 980 346 624 31,180 

Way •... • ... ................. .... .... ....... 62, 950 2, 960 1 , 100 2, 031 124 , 900 

June .... 34 , .97 2, 210 660 1, 160 68,420 . ..... ......... ....... ...... ....... July . ...... 16, 724 2, 900 200 607 31,190 ···· ········· ··· ······· ······ ... August .. 14, 086 1 , 240 186 45 4 27, 900 . .. ... .............. ........... .. September 20,361 4, 210 58 679 40,390 .. . . . . ........... . ....... ...... ... 

Water year 1940 - H ... ... ..... ...... .. ... 178, 660 4, 210 20 489 354,400 

Peale t11eohars e . - June !5 {11 ~>·• > 17, 400 aeo . - o~ June 2 4 {11 P .... ) 7 , 610 aeo . - tt. · ,J ul J. 7 1~ 

{Y p . m.) 8 , 850 aeo .-tt. J Sept. 18 (6 p.a.) 8 , 460 aeo. - tt. ; Sept . 23 {10 •·•·> 8,090 eec .-tt. ; Sept . 29 {2 p.m. ) 10,000 aec . -tt. 

• Winter diaobarge measurement ude on thla don"Tb· aala or weather recorda and reooJ"'dt t'or atat1 ou a t a No gage-height record; dhoharge OOIIJ'Uted Santi. Roaa . 

~ ~:g:~~~~~a~~~!:!!,-00 g~;~~!~~h~,. r!~:~~ dhoharge computed on b1.ah ot aTa llable sase heights, weathe r recorde , and recorda t'or etat1on at Santa Roea. 
266 RIO GRANDE BASIN 

Pe cos Rive r at Santa Rosa , N. Mex. 

Locati on .- Wate r -stage r eco rde r and concrete control , l at . 34.56', l ong. 104°41 ', In sec . 2, T. 8 N. , R. 21 E., at bridge on U. s. Highway 66 at Santa Rosa, 1 mile upstream from Rio Agua Negro ChiQuita . 

Drainage a r ea .- 2 , 650 square miles (contri buting area) . 

Re co rds ava llable.- May 1903 to December 1906 (gage heights onl y), Feb ruary 1910 to July 1911, September 1912 t o Decembe r 1914 and Oc tober 1930 to September 1941 tn reports or Geological Survey . February 1910 t o July 1911 and September 1912 to Decembe r 1931 In re ports of State eng inee r. 

Average d is cha rge.- 22 years (1912- 14, 1916-23, 1928-41 ), 1?9 second-feet. 

Extremes .- Maximum dis charge during year, 23 , 700 second-feet Sept. 29 (gage height , 14.40 t eet), from rating curve extended above 13 , 800 second-teet by loga rithmic plotting; minimum dal l y, 1? second-feet Jan. 18 . 1930-41: Maximum discharge , 55,200 second-tee t June 2, 193? (gage height , 25.? 

teet), from ra t ing cu rve extended above 35, 000 second-teet by logarithmic plotting; minimum da l l y, 2.? second-feet J une 25, 193?. 

Remarks.- Re cords falr . Seve ral diversi ons above stati on f or Irrigati on. 

Discha rge in second-tee t water year October 194.0 to September 1V41 

Day Oct . Nov . Dee . Jan . Feb . Mar. Apr . llay June July Aug . Sept . 

1 4l5 21 22 20 20 29 32e 2 , 270 1 , 660 601 260 266 

2 40 21 21 20 20 25 363 ,~90 1 , 620 498 231 171 

3 38 20 21 20 20 21 340 2, 480 1 ,590 1,720 H6 138 

4 37 20 20 19 19 25 3 12 2, 200 8 , 440 367 H8 98 

5 36 19 21 18 20 48 285 1,650 6 , 250 512 116 78 

6 30 21 21 23 19 51 276 1,260 l,V40 306 116 6 4 

7 32 21 21 21 18 44 301 1 ,390 1,260 312 95 51 

8 37 21 21 21 19 53 312 1 ,620 1,240 328 H8 47 

9 34 22 21 21 20 41 260 1 ,660 1,170 275 141 47 10 29 21 19 20 19 37 286 1 , 870 1 , 080 231 332 41 

11 26 2l 20 21 18 28 290 1, 870 971 256 290 38 12 26 22 22 23 18 29 301 :5,730 881 1 , 190 366 40 

13 26 19 23 22 18 37 312 2, 340 600 5 , 000 1, 450 41 

14 24 23 23 21 19 43 387 2 , 410 958 3 , 790 558 41 

15 22 26 19 20 20 56 412 2,48 0 1 ,330 l. 370 461 41 

16 23 25 18 19 21 48 440 2 ,270 921 240 387 41 

17 23 23 25 20 20 H 454 2 , 000 2 ,4$0 270 318 41 

18 23 24 22 17 21 40 498 1 , 800 1, 160 208 270 41 

19 23 26 21 20 21 37 482 1,740 1 , 210 171 1 , 360 ,710 

20 22 26 21 19 21 41 45 4 1 , 570 962 176 961 266 

21 23 24 21 18 21 56 399 1,580 926 4H 1 , 520 679 

22 22 23 21 18 22 255 363 2 , 960 899 1,280 1 , 270 9 ,. 750 

23 22 25 21 19 26 275 323 4,260 890 163 1 , 130 7,710 

24 22 23 20 19 25 393 318 3 ,400 600 183 1 , 000 3 , 9 40 

25 22 41 20 19 25 614 290 3,240 1 , 920 753 334 1,290 

26 23 30 20 19 26 809 276 2 , 700 1 , 020 159 213 809 

27 22 25 19 19 31 558 312 2 , 200 809 302 557 542 

28 21 24 20 19 31 387 630 2 , 060 670 251 4 , 560 3,620 

29 23 23 20 21 - 345 990 1 , 9 40 490 195 1 , 040 16 , 600 

30 22 22 20 21 - 318 863 3 , 630 4<0 384 1, 060 9 , 0 20 

31 21 - 20 20 - 351 - 2 , 130 - 314 546 - Mon th Second- Maximum IUniiDUII · lloan Runorr 1n 

foot-days acre-feet 

October . . . . . . . . .. . .. . . . . .. .. . . .... ....... . . 836 43 21 27.0 1 , 660 No vember . . . . . . . . . . . . . .. . . . . .... . .. . ........ 702 41 19 23 .4 1,:590 December . . .... . .. . ...... . . ... .. . .. . .. . .... . 6H 25 18 20 . 8 1,260 

------ ------ ------ --- --- -- ---- Calendar year 1940 .. .. .. ................ 33 , :504 6 , 590 15 9 1.0 66 , 060 

------- ------ --- --- ------ - -- - - - January . . . ...... ····· ·· . ....... ............ 617 23 17 19 . 9 1 ,220 February ... . .... ..... ...... .... ........ .... 597 31 18 21 .~ 1, 180 March . . . ... . . ... . ... ..... . ....... .. ... .... . 6, 1:5 8 809 21 166 10 , 190 

April ... . . ... . .• . ...•... .............. .. ... 11 , 874 990 275 S96 2:5, 550 May ..... . . ··············· ······ · . . . . . . . . . . . 76 , 020 ? ,390 1 ,260 2 , 452 150,800 

June ... . . . . . . . . ..•..•. . . . • . . ....... .. . .. .. 44 , ?67 6, 440 440 1 , 492 88 , 790 

J uly . . . . .. . .. . . . .•. . • . ... . .. . .. .. .. . . .. . .. . 22 , 107 5 ,000 ) 59 713 43 ,860 

August ... . . . . . . . . . .. ·············· ········· 21,510 4,560 95 694 42,«5«50 

September .. .. . .. .. . . ... . ... ....... . . ..... . . 57, 25g 16 , 600 38 1,909 113,600 

Water year 19•0- 41 .. ... . . . . . .. . . . . . . . . . . 242 , 0? 1 16 , 600 17 663 t 80,200 

PeaJc discharge .- Kay 2 (3 a . m. } 20,400 sec.-ft. ; J\D'le 4 (5 a . m. ) 18,500 aec .-tt.; Se pt. 22 (12m. ) 

1fl, 500 eec .-rt . ; Sept. 23 (7 p. m. ) 14,900 aec .-rt . ; Sept . 29 (lO a.al.) 19,900 sec .-rt.; Sept . 29 (10 p.m. ) 23,700 seo.-rt. 
RIO GRANDE BABIN 267 

Pecos ruver near Puerto de Luna, N. Mex. 

Location .- Wa ter- stage r ecorder and concrete control , lat. 34°43', long . 104°32' , In sec . 29, T. 6 N., R. 23 E:., 10 mlles southeast or Puerto de Luna and 14 mlles upstream rrom Alamogordo Dam. 

Drainage area.- 3 , 970 square mlles (contributing area). 

Records avallab1e .- Aprll 1938 to September 1941. 

Extremes .- Max imum discharge during year, 26,300 second-teet May 23 (gage height 10 50 t eet ), from rating curve extended above 7,400 second-teet on basis ot now at'santa Rosa; minimum dally, 82 second-teet Jan. 26. 

1938-41: Maximum discharge , that or May 23, 1941; min imum dally, 59 second-teet 

Aug. 23 , 1938. 

RemarkS .- Records good. Many dl versions above station tor I rrlgatlon . Discharge r epresent s Inflow to Alamogordo Reservoir (capac! ty, 157,000 acre-teet). 

Coope ration .- Gage- height r ecord collected In cooperation With Bureau or Reclamtlon . 

Diac bar&e . in second-teet , water year October 1940 t o September 1941 

Day Oct . Nov . Dec . Jan . Feb . War . Apr . llay June July Aug . Sep t. 

1 16~ 101 0~ 9 4 86 101 MO 2 , 180 1 , 620 815 319 489 

2 ~6 106 10~ 88 92 92 420 10, 100 1, 710 875 ~67 232 

3 122 108 112 96 92 86 420 2 , 280 1,900 1,460 277 202 

4 122 101 llO 94 99 92 ~ 1 , 900 6 , 250 860 237 188 

5 125 103 99 90 9 4 106 ~ 1 , 550 11 , 900 8~0 215 166 

6 120 101 98 88 92 125 354 ~60 1 , 880 702 215 146 

7 106 112 101 101 88 122 374 1 , :590 1,190 452 192 132 

8 112 115 108 98 9 4 117 374 1 ,480 1 , 080 358 197 123 

9 117 120 99 96 92 128 328 1 , 530 1 ,130 333 232 120 

10 108 115 101 101 88 112 3 41 1 , 640 1 , 010 326 232 129 

11 103 115 108 108 86 117 548 1 , 660 900 407 441 120 

12 108 120 112 108 88 108 MO 4,010 860 1 , 540 355 114 

13 112 115 128 101 86 llO 341 2 , 010 8 40 5 , 220 1 , :570 120 

14 96 108 120 103 99 115 ~ 1,910 830 4 , 570 962 117 

15 108 106 no 103 96 130 4H 2 , 010 1,080 2 , 000 702 lU 

16 99 108 101 108 99 1~9 428 1 , 910 880 716 836 1ll 

17 103 112 108 101 99 138 489 1 , 970 1 , 650 529 564 105 

18 103 106 110 99 99 130 498 1 , 990 1 , 080 660 507 114 

19 101 115 110 92 99 ll5 489 1,950 1 , 210 483 1 , 050 1 , 140 

20 99 122 112 94 99 117 420 1 ,8 40 1 , 060 832 1 , 510 588 

21 96 ll7 110 9 4 92 144 387 1 , 900 998 515 2 , 080 3 ,310 

22 106 103 106 90 94 242 541 2 , 840 998 1,510 1, 420 13 , 600 

23 101 ll7 98 90 112 315 315 9 , 120 988 529 1 , 7:ID 8,050 

24 106 133 108 90 108 396 298 3,900 950 412 1 , 220 4 ,840 

25 ll2 122 103 94 103 793 282 2 , 850 1 , 650 912 982 1 , 360 

26 106 128 96 82 92 720 260 2 , 280 1,160 483 507 998 

27 99 120 110 88 90 616 ~15 1 , 880 1 , 090 437 412 875 

28 88 108 99 92 9 4 505 452 1,670 982 ~7 6 4,110 2 , 650 

29 103 10e 98 101 - 412 720 1 , 600 905 421 986 17 , 900 

30 94 103 94 10~ - 367 649 2 , 790 875 277 890 12 ,100 

31 99 - 108 90 - MO - 1 , 950 - 718 845 -

Month Second- Ma.xiaua Mi ni eua ...... Ru.norr in 

root-<la.ys ac re-reet 

Oc tober ...... .. ..... .. .. . . .. ........•...... 3 , 367 163 88 109 6 , 680 

Noveaber ... .. .. .. ... ....... .. . •. ... ... .... 3 , 366 133 101 ll2 6 , 680 

De c eabe r ........ . ........ .. .. ············ .. 3 , 267 128 94 105 6 , 480 

-- ----- ------ ------ ------ -- ---- Cal endar year 1940 . . . . . . . . . . . . . . . . . . . . . . 59 , 844 5,770 74 164 118,700 

------- --- - ---- -- ------ ------ January ... . ....... . . , ......... . ..... , ...... 2 , 969 108 82 95 . 8 5 , 890 

February . . . . . ... ... ......... . ..•...... .... . 2 , 652 ll2 86 94. 7 5,260 

Ma rch ... . . . ... . .. .. . . . ........ . ............. 7 , 188 793 86 232 14 , 260 

April .........•.......•..•.. • . ·•· · • • · • • · • · · 11 , 949 720 260 398 23,700 

llaJr . ..... ... .......... . ....... . . . ..... . .... 79 ,4 60 10, 100 1 , 360 2 , 563 157 , 600 

June . .... . ... .... . .. . . .. ....•.....•........ 50, 624 11,900 830 1 , 687 100 , 400 

July . . ....... . • .. ........•..•..•..•..•... .. 30 , 318 5 , 220 277 978 60, 130 

Aucuat . ... .................. . .. . . . ......... 26 , 1e2 4, 110 192 831 51 ,100 

Septeaber .......... . .......... ...... . ..... . 70, 253 17 , 900 105 2 , 342 139 ,300 

Water year 1940-41 ··· ··················· 291 , 166 17 , 900 82 798 577 , 500 

- ·30 Park dhcbarge.- 11ay 2 (5 a. m. ) 20 , 500 aec .-rt ., 11ay 23 {l z30 a .m. ) 26 ~ aeo . r t, .JUno 5 f.t . a.a.) 18,000 180 .-rt. ; J'Une 5 (6 a .a. ) 17 , 700 aec .-rt . ; Sept. 29 (2 P••· 23 , 400 aec .-rt . ; Sept. 30 

(2 t30 •·•·) 23,700 aec.-rt. 

498588 0 - 43 - 18 
266 RIO GRANDE BABI N 

. Pecos Rive r near Guadalupe, N. Mex. 

Location trevlsed) .- Water-st age recorde r, lat . 34°36'20' , long . 104°23 ' 10', In lot 1 , s ec . 2, T. N. , R. 24 E. , 1,200 reet downs tream rrom Alamogo rdo Dam , H miles downstream from Alamogordo Creek , and 4i mi les northeast or Guadalupe . Datum or gage Is 4 , 142 . 67 reet above mean sea level (Bureau or Reclamation datum ) . Pri or to Sept . 27 , 1941, various gages at same s! te but at d! rre ren t da t ums . 

Dra i nage area .- 4 , 390 square miles (contributi ng a rea). 

Re cords ava i lable .- Octobe r 1912 to December 1914 , Oct obe r 1930 to September 1936 (at s i te 1i miles upstream) , and September 1936 to Septembe r 1941 In re po rts or Geologi cal Survey . Oct obe r 1912 to December 1931 I n reports or State engineer. 

Ext remes .- Max imum discharge dur ing year, 40 , 100 second-reet Sept . 22 (gage heigh t, 13 . 58 t eet, rr om n oodma rk), rrom computation or now over spi llway; no now Feb. 20 . 1930-41 : Maximum discharge , t hat or Sept . 22 , 1941 ; no flow a t t imes In 1937 , and 

Feb . 20 , 1941. 

Rema rks. - Reco rds good below 12,000 second-reet , ralr above except those ror pe riod J une ---z=rr;- whi ch a re poor. Flow regulat ed by Alamogo rdo Rese rve! r (see p. 261). Many dl ver- si ons above s tation ro r 1 rrlga tl on. 

Coope rati on.- Gage-he i ght record collect ed In coope ration wl th , and r esults or 14 discharge measurements rum ls hed by Bureau or Reclamati on . 

Discharge . in second-feet, water year Oc tober 1940 t o Septembe r 1941 

DOJ Oc t . 

1 

2 

3 

4 

5 

6 

7 

e 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

le 

19 

20 

21 

22 

23 

24 

25 

26 

27 

2e 

29 

30 

31 

92 

92 

99 

99 

9 7 

94 

e7 

e7 

eo 

73 

67 

e5 

es 

7e 

e5 

90 

90 

7e 

e2 

e7 

e7 

e5 

e7 

e7 

90 

92 

94 

9 2 

90 

90 

92 

Nov . Dec . 

~5 

1.1 

. 7 

. 7 

. 7 

.6 

.6 

.6 

. 3 

. 3 

. 2 

.1 

. 2 

. 3 

. 2 

. 2 

.4 

.4 

. 3 

. 4 

.4 

.3 

. 4 

.3 

.2 

. 3 

.3 

.4 

. 4 

.4 

Month 

0 .4 

.4 

. 6 

.3 

. 4 

. 4 

. 6 

.6 

. 6 

~ 

. 6 

.4 

. 6 

.4 

. 4 

.4 

.4 

.4 

.4 

.4 

.6 

.6 

. 6 

.4 

. 4 

.4 

. 6 

. 6 

. 6 

. 6 

. 6 

Jan . 

0.6 

. 6 

.6 

. 6 

.4 

.3 

. 3 

~ 

.4 

. 6 

. 7 

. 9 

. 7 

. 7 

. 6 

. 6 

.4 

.6 

.6 

. 6 

. 6 

. 6 

. 6 

. 7 

.7 

. 7 

. 6 

. 6 

.7 

.7 

.7 

October ... ..... .. . ....... . ....... . Nove•ber .. .. . . .. . 

Feb . 

0 . 7 

. 6 

.6 

. 6 

. 6 

16 

16 

0 

. 3 

.6 

. 7 

. 6 

.4 

. 6 

.7 

. 6 

. 7 

. 7 

.4 

. 4 

. 1 50 

e5 

e2 

es 

74 

7e 

75 

Dece•ber ..... . ... .. ..... o ... .. .... . ........ . 

Calendar year 1940 ........ 0 •••••• • •• •••• 

January . . ... . . . ... . . . ... . ... . . . ..... . . . ... . February . . ........... . . . . .. .... , . Ma rch . .... . ..... . ............ o ••• • •••••••• • 

Apr11 . . ... ..... . . . . ... . .. .. ... .. .. ... . . ... . 

May . .. .. .... . ... . . . ........... . .... . ... ·•o. 

June .........•...............•. .. ........ July .......... . .... . ..... . August ................. ..... . .. . SepteiDber .................... ... . 

Wate r year 1940- 41 ...... . 

War. Apr . June 

8 1 

78 

78 

78 

60 

78 

76 

78 

eo 

390 

49 4 778 

1 , 130 1 ,490 

1 , 490 

1 , 440 

1 ,380 

1,350 

1 ,270 

1 , 190 

1 , 100 

~07 

1 

41 

52 

7e 

79 

eo 

76 

74 

76 

Secondtoot-days 

2 , 713 

46 .7 15. 0 

89 , 191 . 4 

1e . 3 570 .9 

15,053 

2 ,417 34, 8 40 68 , 463 27 , 718 23 , 670 

83 , 676 

259 , 200 . 9 

76 

76 

77 

77 

77 

69 d2 , 290 

29 dl,l30 

2 d2 , 410 

: ~b:ggg 

77 

77 

7e 

7e 

7e 

3 4 4, 000 

3 4 d 2 , 000 

73 dl, 600 71 dl , 500 5.:5 dl , 700 

79 

79 

79 

eo 

eo 

74 d 2 , 010 94 1 , 480 

84 1 , 060 64 794 

65 340 

eo 

e7 

e7 

88 

88 

61 

69 

e4 

94 

9 4 

eg 91 eg 20 

ee d~ 93o 

86 d5 ,240 86 d4,260 

8 6 d4, 260 87 d3 , llO 

71 d2 , 130 68 dl , 960 69 d4 , 450 - d4,260 

99 

35 . 6 

3 , 240 

.9 es 1 , 4.90 

eg 5 , 240 17 ,000 

5 ,460 

3,640 24 , 000 

24 , 000 

652 

2 , 310 1 , 550 1 , 630 1 ,360 

1 , 220 1,220 

1 , 180 

761 

796 

788 1 , 370 

2 , 01 0 1 ,460 

8 42 

Minieu11 

67 .1 

. 3 

. 1 

. 3 

0 

1 

68 

3 340 

e3 

1 23 

123 

0 

Ju l y 

146 

e66 

e 3 

88 

93 

101 

140 

177 

1e4 

1e 4 

2 71 

2, 250 5 , 460 

6 , 420 3,470 

1 , 200 

175 

155 155 

1 91 

1 , 080 2 , 080 1 ,410 

4e O d 247 

dl55 

dl96 d 239 d 297 

d29 7 

d426 

d9S4 

d 569 

dl90 ~ 

~ 

1 26 

126 126 

126 

149 

188 

247 

9e9 

1 ,760 

425 

425 

430 425 

295 1 ,160 

3 , 100 

1 , 400 

1,390 

610 

123 

~ 

376 

3 , 640 2 ,070 

931 

931 

Sept. 

546 

126 

123 123 1~ 

123 123 

1 23 

126 

126 

131 

126 126 126 

126 

126 1 26 126 

131 d370 

d8 , 660 24, 000 <19 , 390 

4 5 , 210 <11 , 1 40 

d510 dl , l10 

3,880 14 , 000 

12 , 600 

Wean Runott in ac re-reet 

e 7. 5 1.56 

. 4e 

244 

. 59 20.4 

4e6 

e o. 6 1 , 124 

2 , 282 e94 764 

2 , 789 

710 

5 , 380 

93 

30 

176 , 900 

36 1 ,130 29 , 860 4 , 790 

69,100 

135 , 800 54, 980 46 , 950 1 66,000 

514 , 100 

d Doubtt'ul gage - height record; dlecharge c ompu t ed !rom recorda or reservoir spillway gate operation, 

except June 2- 11 , Wh ich was c omputed on basis ot two dhcharge measurements, weather rec orda, starr- gage readings, and records tor station near Acme . 
RIO GRANDE BASIN 269 

Pecos Rl ve r near Acme , N. Mex. 

Locati on .- Wa ter-stage recorder, la t . 33°32 ' 10' , long. 104°22 ' 40', In NWt sec . 14, T. 9 S., R. 25 E., 1 mile southeast or Melena rallraod station, 3t miles downstream !rom 

Salt Creel<, 5 miles southwest or Acme , and 13 miles northeast or Roswell. 

Drainage area.- 11 , 380 square miles (contributing area) . 

Records ava ilable .- July 1937 to September 1941 In reports or Geologi cal survey. August 1921 t o J ul y 1923 In repo rt s or State eng ineer. 

Extremes . Max1mur .. <lis charge <lu r ing year, 45 ,000 secon<l-!eet Sept. 23 (gage he i ght , 13. 7l t ee t), !rom rating curve exten<l e<l above 26 , 100 second-teet by logarithmic plotting ; no n ow Oct. 1 , Nov. 1 , 2 . 1937-41 : Maximum <llscharge , that or Sept . 23, 1941 ; no !low a t times. 

Floo<l or May 28, 1937 , reache<l a stage or about 14 .0 teet (<llscharge , 53,300 second- teet) , by sl ope-area metho<l . 

Remarks.- Records goo<l except t hos e !or periods or fragmentary gage- he i ght record, whi ch· ai r, an<l those above 18, 000 secon<l-!eet, wh ich are poor. Many <llverslons above 

station !o r Ir rigation . Flow regulate<l by Alamogordo Reservoir (seep . 281) . 

Cooperati on.- Bureau or Reclamat i on coope rated In collec ting gage-height reco r<l an<l !ur- n!snea results or 15 <l lscharge measurements. 

Disc harge , in second- teet. water year Oc t ober 1940 t o September 19 41 

Da. Oct . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

1~ 

~6 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

0 

2-9 

3.5 

2 -4 

1.6 

1.5 

1-7 

2 -1 2 .8 

5 -8 

19 

18 

22 

22 

17 

14 

14 

14 

H 

17 

16 

15 

13 

11 

l2 

13 

l2 

7.6 

5 -5 3.3 

.6 

Nov . 

0 

0 

1 . 3 6 - 4 

10 

12 

12 

13 

11 

6 .0 

6 .0 

5 .5 

3 . 5 2. 4 

1 -3 

1-1 

.7 

.. 

-4 

1-5 

3.8 

5.& 

16 

30 

28 

48 

52 

36 

26 

19 

Dec . 

1 5 

12 

9 .2 

8.o 

7.2 

6. 4 

6 .0 

5-8 

5 .5 

5 -2 

5 -0 

s.o 

6 .8 

7.6 8:o 

8 .8 l2 

11 

8- 4 8 . o 

7.6 

6.8 

6 .4 

5.8 

2 . 6 

3 . 0 2 -4 

2 .2 

2 -2 

1.9 

1-9 

Mont h 

Jan . 

1-7 

1.5 

1-9 

2 -1 

2. 4 

3. 1 3 .5 

3 . 5 

3.5 

4-0 

5 -0 

7.6 

9 .6 12 

13 

12 

11 

8 .o 

s.8 

4-8 

4-2 

3.3 

2 .2 

2 .6 

2 .4 

2 -4 

2 - 4 2.6 

3.3 •. o 4 -5 

Peb . 

5.0 

5 . 8 

8 -4 

11 

10 

11 

8 -o 

7.6 

s.s 

3.8 

2 .6 

.6 

.6 

.. .3 

. 3 

.4 

.. 

.s 

.6 

. 9 

1-2 

1-9 

2 .6 

3 . 5 

5 . 2 5 .8 12 

Oc tober . .. . .... . .... . ...... . .. . •..•.. . . . .. . Nove•be r . ............. . .... .. -: . . • . . o • •• •••• 

Dece•be r . ......... ....... . .. . ......... . . . . 

Mar . Apr . May 

33 

36 

23 

22 

19 

87 2 , 230 87 18 , 800 78 5 , 820 76 tl, 440 

71 1 , 160 

22 

29 

33 

31 

23 

25 

89 

358 

656 1,030 

1 , 460 

1,380 

1 , 380 

1 , 290 1 , 360 

1,380 

1,790 

1 , 330 

389 

2 ,020 

1 ,360 

344 

177 

133 

113 

102 

65 

54 

46 

48 

49 

48 

42 

61 

54 

54 

71 

52 

32 

24 

22 

21 

19 

22 

37 

194 

501 11,100 

3 , 440 !3,370 

l"722 

S.cood- to ~&,Je 

304 -3 3&8 . 8 203 . 7 

567 

320 

f232 

n83 

155 

190 2 , 310 

487 

272 

210 

156 

118 

!107 

f89 

38 

125 1,400 

3 ,160 

13, 900 9 , 8 40 

4, 170 2,900 

2,540 

2 , 920 2 , 540 4;720 

22 

52 

15 

June 

3 , 180 2 , 160 

1,840 

1 , 460 

6,650 

16 , 000 2 ,420 

1 , 430 1 , 400 

1 , 110 

1 , 540 1,920 

1, 780 

1 , 360 2 , 240 

1,130 791 1,600 

1 , 820 1 , 070 

1,120 

1,210 

1 , 200 

1 , 300 1 , 070 

1,010 930 1,170 

1,880 

1 , 680 

IUn i •ua 

0 

0 

1-9 

July 

1,120 636 

553 

610 

304 

206 

218 

157 

130 

113 

176 1 , 870 2, 020 6 ,730 

7 , 660 

3 , 530 1,420 

678 

420 

293 

227 

436 

1,360 

1,400 

602 

518 

453 

276 

287 

227 

206 

Aug . 

227 321 627 

375 

266 

201 

130 133 

170 

184 

210 

107 

429 

407 1 , 240 

812 

540 

489 

548 

1,100 

753 2 ,290 

1 , 740 

1,060 1,320 

618 434 

363 

2 , 200 2 , 210 

990 

Sept . 

971 

830 

414 378 

214 

154 

110 

102 

139 

85 

78 

eo 

83 

133 

96 

93 

160 

123 

99 

160 

680 18,200 

29,500 

12 , 900 7 , '790 

2,680 

830 1,940 

7, 390 19 , 400 

lloan Runott in 

aor&-teet 

9.82 

12-0 

6 . 57 

604 

712 

404 

Calendar year 1940 ...................... _ _ s: •!S::.o_ 2 , 870 0 172 __ ~-4.!!~ 

January ...... .. ....................... .. .. . ~i~:g ~~ 1:g ~! ~~ February ........... . • . 0 . 0. • 0 . •o . . ...... . ... 18, 437 2 020 19 595 36,570 March . ........... 0 • • • • • • ••••••••••• •. • • • • • • , 1 9 685 40,750 

~;~~ :::::::::::::::::········ ::::: ::::· :g;g:~ i~ ~gg 38 2,680 164,800 

June ... ·........ . • . . • • . . . . • . . • . . . . . . . 65 , 571 1 6 ,000 791 2 ,186 l~ ~<>g 

~~~~t. ::::::::::: ::: :: ... .... o·••··· · ······ :;:~: 2i:.:g ~~ ~:~~~ 2~~;~~ Sopto•bor . . . . . . . . . . . . . . . . . .).._::0:::5~_:802:::_ -l-_:_:::=:...t--=-+--..::.!:.:..;_-t-==~ 

Water year 1940- 41 3S2 , 008o7 29,500 0 964 698 300 

r Fragmentary gage-height reoord 5 discharge computed from partly estimated gage he i ght o 
270 RI O GRANDE BASIN 

Pecos R1 ve r near Lake Arthur , N. Me x. 

Locati on.- Wate r-st age r ecorde r, lat . 32°59 ' 25", long. 104°19 ' 10" , on ll ne between s e es. 26 and 27, T. 15 S. , R. 26 E. , 1 ,100 t eet ups tream from hi ghway bridge, 3 miles east ot Lake Ar thur, 10 miles upstr eam from Cot tonwood creek, and 11 miles northeast or Artesia. 

Drainage area .- 14,760 squar e mi les (contributi ng a rea) . 

Records available .- August 1938 to Septembe r 1941. 

Extremes .- Max imum d is charge during year, 49 , 600 second-teet Sept . 24 (gage he ight, 21.90 

teet), trom ra ting curve extended above 16 , 100 second- t ee t on bas is or l ogar1 thm1 c plotti ng and slope- ar ea measur ement at gage he i ght 21.77 tee t; m1n1mum da lly, 33 second-teet Oc t . 8 . 1938-41 : Maximum dischar ge, t hat or Sept . 24, 1941 ; m1n1mum dally , 2 second- t eet Aug . 29 , 30 , 1940 . F'lood or May 30, 1937 r eached a stage or 21.77 reet (d is Charge, 51 , 500 se cond- t ee t, 

by slope-area me t hod) , may have been exceeded by fl oods or 1904 and 1919 . 

Remarks .- Re co rds good except t hose ror periods or doubtful or no gage-he ight record and 

those. above 5 , 000 second-teet , whi ch are poor. D1vers1ons above station t or 1rrl- ~tlo . F'low regulat ed t o some extent by Al amogo rdo Rese rvoir 150 miles above stati on (see p. 281 ) . 

Cooperat ion.- Gage-he i ght re co rd collected 1n coope ra tion wl t h , and res ults or 13 dis- charge measurements rum lshed by Bureau or Reclamati on. 

Discha rge , i n s econd-tee t . wate r- year Oc tober 1940 t o Septeabe r 1941 

Day 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

Oct . 

3 

39 

43 

46 

H 

u 

42 

33 

34 

41 

47 

53 

79 

8 3 

8 0 

8 2 

73 

70 

70 

71 

Nov . 

64 

65 

64 

62 

59 

69 

65 

76 

79 

76 

76 

75 

73 

83 

90 

90 

90 

88 

86 

89 

Dec . 

130 

126 

120 

118 

115 

113 

111 

100 

106 

106 

94 

82 

76 

75 

79 

66 

82 

78 

75 

78 

J an . 

82 

75 

75 

75 

70 

70 

67 

68 

76 

75 

76 

78 

82 

78 

78 

7l 

72 

76 

98 

92 

Feb . 

88 

8 0 

80 

78 

79 

83 

63 

92 

96 

90 

63 

62 

8 0 

7 6 

75 

89 

86 

76 

73 

71 

Mar. 

80 

78 

8 9 

101 101 

94 

92 

89 

96 

9 5 

90 

92 

90 

304 

956 

1 , 210 1 ,400 1 ,410 

1,460 

1,370 

Apr . 

215 

198 

188 

172 

165 

165 

153 

140 

128 

111 

110 

124 

124 110 

103 

100 

92 

98 

95 

82 

llay 

1 , 320 8 , 070 

14, 800 6 , 830 2 , 470 

1 , 230 

794 

638 

520 445 

402 

467 1 , 9 70 

644 

505 

480 402 

346 

303 

319 

21 

22 

23 

24 

25 

70 

70 

67 

68 

66 

89 

100 

106 116 

126 

79 

78 

eo 

78 

79 

83 

69 

103 

79 

7 5 

72 1 , 320 

76 •1 , 800 78 a.2,200 eo al ,2po 

83 756 

79 48 4 76 6 ,450 68 10, 200 67 12 ,400 

80 15,900 

26 

27 

28 

29 

30 

31 

October. 

Noveaber . Deoeaber . 

65 

62 

59 

6l. 

62 

61 

145 

142 

151 

168 

145 

Month 

7 6 

73 

89 

96 

100 

95 

75 

82 

8 3 

89 

8 6 

8 6 

Calendar yea r 1 940 .... . .... . . . .... . . 

96 

96 

8 5 

January ... . . ............ . . . .• . . •. .. . .. . 

February . ..... • ..•.... • ..•.. ~ .... •. . • ..... 

March . . ....... . .... . . . .. . . .. .. .• .. . ..... April .........•.......•. ....• ... ... .•...... 

llay . ......... . . .. • . .• .. ........•. .. ..•. June ..... . . . ....... . ..... . ....•. . ..... .. July ... . ........ . ....... . . ....... . .. . . . ~~~ ... .... . ... .. ..... . . . ......•....... . . ..September . . . . . . . . . . . . ..... .. .. . . . 

Water year 1 940-41 

2 , 290 1·, 020 

440 

310 278 

242 

195 

4 , 000 10 ,500 4,560 2 , 910 

9 , 140 4, 140 a3 , 370 

::5 , 170 

3 , 650 

4, 010 

Sec ond- root-days Ma.xiaua 

1,825 

2 ,788 2,872 

8 5, 914 

2 ,462 

2 , 308 

21,155 25, 228 113,869 

73,068 

43,429 

28 , 317 

1 62,222 

4 79 ,54.3 

8 3 158 

130 

2, 910 

103 

96 2, 290 

10, 500 1 5,900 

10 ,300 

6,600 

3,200 

39 , 800 

39 ,800 

June 

•,8:so 3 , 600 2 ,360 2 ,410 2 , 990 

9 , 820 10 , 300 3 , 140 2 , 180 1 , 970 

1,390 

1 , 980 2 , 050 1 , 51.0 1 ,360 

2 ,170 1 , 100 

724 

2 ,370 1 , 270 

1 , 560 1 , 290 1 ,640 

1 , 750 

1 , 380 

1 , 090 

922 7 52 

1 , 350 1, 920 

Mt_ni mo 

33 

59 

73 

67 

71 

78 

67 

303 

724 

268 

209 

252 

33 

J uly 

1 ,470 

1 ,120 

638 

1 , 100 

704 

422 455 

386 

322 268 

256 

653 2 ,470 3, 480 

a6 , 600 

8.5 , 600 d3 , 920 1 ,450 

SOB 

690 

436 450 738 

970 

5:13 

370 

314 

242 

209 

239 

276 275 1 , 680 1 , 310 

1 , 060 

1 , 850 

808 

638 

520 631 

Sept . 

1 , 070 1 , 150 1 , 010 

602 

574 

354 

289 

256 

268 

334 

306 

278 2 62 2 65 

275 

272 

252 252 

269 

262 

465 6 56 

1 ,310 2, 300 

1,740 

888 1 , 260 2 , 730 1 ,4-40, 1 , 240 

4, 600 9 , 740 27 , 500 39 , 800 

33 , 600 

856 

921 700 

560 

530 

475 

1,080 

465 354 

310 3,200 1 ,600 

6, 9 30 2,800 2 , 1 60 9 ,470 1 7 , 000 

lie an Runott iD aore-t'eet 

56. 9 92 . 9 92 . 6 

235 

79.4 

8 2 . 4 682 641 3, 673 2 ,436 

1,401 913 

5,40'7 

1,314 

3 ,620 6 , 530 5 , 700 

170,400 

4, 880 4, 580 

41 , 960 50,040 226,900 1 44,900 

86,140 66 , 170 

321 , 800 

951,200 

a No gage - he ight record ; dhcharge c omputed on bash ot one discharge measurement, weather recorda , and recorda t or sta t i ons near Acme and near Artesia . 

d Doubtt'ul gage-he i ght record; discharge comput ed on basis o r ava1lable gage he i gh ts, weather recorda, and records t or station s nea_r Acme and near Artesia. 
RIO GRANDE BASIN 271 

Pecos River near Artesia, N. Mex. 

Location.- Water-stage recorder, lat . 32°50 ' 10', long . 104°19'30" , In WtNWt sec . 18, 

T. 17 5. , R. 27 E. , at new bridge on Artesia-Lovington highway, 4 .2 mlles east or Artesia, 6 .5 miles north or mouth or Rio Penasco , and 16t miles north or McMillan Dam. 

~~~~fri~r!~~·d:t.;,~41, water-stage recorder at old highway bridge 600 teet downstream, 

Dra inage area .- 15,300 square mlles (contributing area ). 

Records available.- March 1905 to September 1925 and October 1931 to February 1936 (pub- l!shed as Pecos River near Dayton ), and February 1936 to September 1941 In reports or Geolog ical Survey . March 1905 to December 1931 In repor ts or State engineer. 

Extremes.- Maximum gage height during year 13 .32 t eet Sept . 25 (discharge not determined); mi nimum da l ly discharge, 41 second-teet October 9 . 1905-40 : Maximum gage he i ght, 15 . 9 teet Sept . 18, 1919, s l te and <Ia tum then In use (d1scha1e not determined) . Flood or May 30 , 1937, reached a discharge or 51 ,500 

second-teet gage height , 14. 7 teet), computed by slope-area me t hod ; no now Aug . 17-24' 1934. 

RemarkS.- Records fair except those above 5 ,000 second-teet, which are poor. Diversions 

above station tor Irrigation . Flow partly regulated by Alamogordo Reservoir (see p.281.). Discharge represents Inflow t o Lake McMi llan, whi ch stores water tor Irrigation or about 25 , 000 acres or Carlsbad project. 

cooru rat!on .- Bureau or Reclama ti on cooperated I n collecting gage-height record a nd 

urnishea 12 discharge measurements. 

Discharge in second-teet water year Oc t ober 1940 to September 19U 

Da Co t . Nov . Dec . Jan . ""Feb . War. Apr. 114)1 June Jul y Aug. Sept. 

1 46 68 146 102 98 93 246 1 , 420 4 , 860 1 , 600 490 1 ,120 

2 H 70 136 90 96 90 223 6 , 000 3 , 850 1 , 160 478 1,120 

3 42 70 134 90 91 91 201 1 3, 500 2 , 320 772 563 1 , 090 

4 43 59 128 90 93 98 194 7 , 320 2 , 600 877 1 , 040 760 

5 45 67 126 89 88 106 181 3 , 050 2 , 680 888 701 596 

6 46 66 124 86 91 103 172 1,510 8 , 110 490 428 415 

7 46 68 122 88 95 99 170 795 11 , 200 466 355 365 

8 43 79 117 88 96 96 154 675 5 , 100 440 296 305 

9 u 82 109 88 104 98 140 688 2 , 480 390 255 295 

10 43 82 114 94 104 100 130 540 2 , 020 325 248 346 

11 51 83 114 90 99 100 122 510 1,420 296 270 345 

12 59 80 98 93 95 99 125 695 1 , 920 605 252 325 

13 9l 78 94 95 9 4 95 132 2 , 270 2,160 2 , 260 936 295 

14 88 80 91 93 93 144 126 908 1,760 3 , 130 1 #610 285 

15 82 91 90 89 89 1 , 060 109 695 1 , 240 7 , 260 775 28~ 

16 86 96 93 86 88 1 , 440 113 640 2, 600 6, 390 1 , 630 305 

17 82 96 100 79 100 1,830 98 570 1 , 3, 0 3, 690 927 278 

18 76 99 98 84 93 1 , 920 109 495 870 1 ,620 680 285 

19 72 98 93 91 86 1 , 900 106 423 2 , 210 870 565 295 

20 76 96 91 109 83 1 , 710 101 383 1 , 760 645 568 305 

2 1 77 100 96 96 8 4 1 , 610 92 952 1,~90 535 932 5,270 

22 75 102 96 91 85 1 , 820 93 3,840 1,480 622 799 9 , 910 

23 74 111 91 103 90 2 , 320 87 10, 000 1 , 600 1 , 190 2 ,400 25, 900 

24 74 120 90 103 90 1,460 81 14 , 900 1 , 720 2 , 240 1 , 750 32 , 900 

25 74 128 86 90 93 733 87 17 , 000 1 , 480 2 , 020 1 , 120 44 ,300 

26 74 135 85 88 98 1 , 900 136 0 , 120 1 , 160 1 , 040 1 , 310 10 , 900 

Z7 72 146 83 91 100 1,170 2 , 720 4 , 860 870 890 628 4, 720 

28 67 145 86 96 100 637 12 , 100 4 , 090 790 910 428 3,110 

29 es 160 102 98 - 369 5 , 490 3,410 1 , 060 610 345 7 , 5:50 

30 67 163 106 99 - 336 3 , 620 3 , 850 1 , 880 665 2 , 560 1'7 , 200 

31 68 - 107 98 - 290 - 3,850 - 550 1 , 940 -

Second- Maximue 1Un1aua lie an Runorr in Month toot-days acre-teet 

October . . .. . .................. . .• . .... . ... . 1,986 91 41 64 . 1 3 , 940 

Noveaber . . ............... . •..• . .• . .• .. ..... 2,916 160 66 97 . 2 5 , 780 

De ceabe r ........... . ....•. .. .. . .. . ... . . .... 3 , 244 145 8 3 105 6 , 430 

-- ---- ------ ------ ------ --- --- Calendar yearl940 ....... .... . -. ....... 90 , 656 2 , 8 40 5 248 179 , 800 

------- ------ -- ---- ------ - ----- January . . ... .. : . ... . . . .. .. .. · · • · · ~ · · • · · · · · · 2 , 866 109 79 92 . 5 5 , 680 

February .......... . .. • .. •........... . . ... .. 2 , 61 6 104 83 93 . 4 5 , 190 

March ........ . . .. .•..•.. • •.••..•.•. .•.. •..• 2:5 , 817 2 , 320 90 768 47 , 240 

April. . . ................• . ....•..•. . •. . •... 27 , 457 12, 100 81 915 54 , 460 

llay . ... . ... . ......................... . ..... 118,859 17,000 383 3 , 834 235 , 800 

June . .......... .... .. •. , .................... 75,720 11 , 200 790 2 , 524 150,200 

July .. ... ....• .. •..•..• . ••.••.•..• . .. . .. ... 45,0M 7 , 260 295 1 ,453 89 , 320 

August . ... . ... . . .. .. .. .......... ........ ... 27 , 278 2 , 660 248 880 54 , 110 

September .......... .. ········· ·· ···· ····· ·· 171 , 133 44,300 278 5 , 704 339 ,400 

Water yea r 1940 - 4.1 ...... .......... .... ... 502 , 926 44 , 300 41 1, 378 P97 , 600 
272 RIO GRAJIDE BASIN 

Pecos River at carlsbad , N. Mex . 

Location.- Water-stage recor der, lat . 32°24'50", long. 104°13 '20", In NWtSEt sec . 6 , T. 

22 S., R. 27 E., at Green Street Bridge In Carlsbad , halt a mile upstream from Dark 

Canyon. Datum or gage Is 3 , 080 .38 teet above mean sea level, datum or 1929. 

Drainage area .- 18, 100 squar e miles ( contributing area) . 

Records available .- May 1903 to March 1908 , May 1914 to Septembe1· 1925 , October 1928 to September 1930 and October 1931 to SeptOOlber 1941 In reports or Geological Survey. June 1903 to December 1906 , May 1914 to December 1928 and January 1930 to December 

1931 In reports or State engineer. 

Extremes .- Maximum d ischarge during year, about 60,000 second- feet May 22 (gage height , 20.5 feet, atrected by backv.ater !rom Dark Canyon) , !rom rating curve extended above 

34,000 second-feet by logarithmic plotting; mlnl.mum dally , 19 second-feet Mar. 8 . 1903-8, 1914-41: Maximum discharge , 85 , 700 second- feet Aug . 7, 1916 (gage height, about 21.0 teet), from rating curve extended about 34, 000 second-feet by logarithmic plotting; no flow May 9 , 1904 . 

Remarks .- Records good except those !or periods or backwater e!fect or no gage-height record , which are poor . Flow regulated by Alamogordo, McMillan , and Avalon Reservoirs 

and at low stages by power plant above station . 

Coo~eratlon Bureau or Reclamation cooperated In collection or gage-height record and urnisfied r our discharge measurements . 

Discharge , in second-raet, water year October 1940 to September 1941 

011,) Oct. Nov . Dec . Jan . Feb. Wa r. Apr . Nay June July Aug . Sept . 

1 65 68 58 123 82 80 70 2 , 190 5,560 582 200 854 2 65 68 62 llO 80 80 88 12,~00 4 , 720 1,360 162 854 3 65 68 65 96 80 78 68 4,880 4,550 1,670 105 882 4 85 68 68 96 80 80 70 4,430 4,480 1,170 102 1 , 120 5 62 68 68 96 80 80 72 7 , 350 4,410 700 102 1, 050 

6 60 68 68 96 80 48 70 8 , 840 4,140 818 212 740 7 60 68 68 96 80 20 70 5 ,3 20 4,040 482 4ll 540 8 60 68 68 91 80 19 70 2,600 4,220 482 :?78 429 9 62 68 72 91 80 2'1 72 872 5 , :)50 ~23 238 200 10 60 68 72 9~ llO 54 72 681 5 , 830 116 107 156 

11 60 68 72 93 93 60 72 1 , 220 3,770 102 102 11~ 

12 65 68 75 9~ 54 60 78 1 , 840 2,560 99 102 252 13 ~65 65 85 91 39 60 70 618 974 99 102 418 14 170 65 85 91 39 65 72 594 2, 180 1, 040 102 :?78 15 157 65 82 88 39 65 72 2,300 4 ,4 4 0 1 , 850 102 ~~2 

16 72 85 78 BB ~9 65 72 123 1, 970 2 ,980 616 17~ 

17 65 65 88 BB 39 75 72 652 1,490 4, 530 1 ,110 220 18 65 65 123 88 54 65 72 600 1 , 720 4,010 1,830 ~05 

19 62 62 99 BB 72 68 68 499 2 , 110 4 ,150 1, 490 ~80 

20 62 60 93 88 72 68 70 278 607 1 ,610 355 700 

21 62 62 93 BB 75 72 70 1,590 1,430 113 888 15,000 22 62 60 93 88 78 91 70 r:~: ~ 2 , 030 105 2,380 15,900 23 62 60 99 88 78 ~9 70 1,440 105 1,620 16,000 24 65 58 145 BB 78 91 70 7,920 1 ,810 162 1,540 17' 700 25 65 58 ~2 BB 78 201 72 11,900 1,640 1 ,460 798 22,100 

26 65 58 119 BB 80 93 70 13,900 1,950 1 , 060 110 31,700 27 68 58 152 BB 78 91 68 14, 600 0~0 1 , 260 235 21, 800 28 68 58 180 BB 78 7 2 70 11,200 156 977 1,210 9, 230 29 68 58 ~2 85 - 70 70 8 , 150 435 428 1,440 g7,900 ~ 68 58 1H 82 - 70 7 2 7 , 620 749 244 1,310 g? , 400 31 68 - 119 82 - 70 - 8,090 - 142 861 -

Month Second- Maxim WI Minl•ua Moan Runorr in root-days aore-reet 

Ootober ...... .. ......... ..... ... .. ..... .... 2,4 86 ~65 60 80.2 4, 930 

Nove•ber . ............ ...... . ...... . ... . . . . . 1 , 918 88 58 63.9 80o 

Decembe r . . . ...... .... . . . . . ... .. ........ ~ .. 2,93 2 180 58 94.6 5,820 

--- ---- - ----- ------ ------ ------ Calendar year 1940 ········ ··· ··· ····· ·· · 25, 824 ~63 45 70.6 51 ,240 

----- - - ------ ----- - ------ --- --- January . .... ·········· . ... ~ ...... ..... . 2,837 123 82 91.5 ,6~0 

February .. . .. . .. ...... .... ......... . .... . . . . 1,995 110 ~9 71.2 3,960 

Maro~ .. ... .. . . . ... .. .. . .. .... ....... ... .. .. 2,275 201 19 73 . 4 4,510 

April ..... . .. , ..• . ... ...... • .. ,. ... . . .... . . 2,122 78 68 70.7 4 , 210 

llay ........... . . . .....•. . • .. . . ... . . .•... . .. 189 , 737 18,300 123 5 ,4 ?5 336 , 700 

June ........ . . . .. .. . . . . . .. .. ... ... .. ....... 82,?91 5 ,830 156 2 , ?60 164,200 

July . . . .. . ...•.. •.. . .. . .•. . ••.•..•.•.. •. . •. 34,029 4, 530 99 1,098 6? , 500 

August .. . . ... ..... .. ...... ·•·· ·· · · ··· ···· ·· 20 , 218 2,380 102 652 4.0,100 

Sept ember ........ . . .................... .. .. 174,624 31, ?00 1~ 5 , 821 !5 46 , 400 

Wat er year 1940-41 ·· · ············ · · · ··· · 49?,982 :n,7oo 19 1,364 987,800 

a Ko gage-height record; discharge compute<! on 'bade or recor<1a ror station nea_r J1alap. . 

c Stage-discharge relation atrected by backwater trom Dark Canyon; d1aebarge computed on 'baala ot partly eatl•ted gage heights , estimates ot peale t l ow or Dark Canyon, and recorda tor station near 

lldago.. 

g Computed tram graph -o.aed on atatt-gage reaC:Unge obtained twice dally. 
RIO GRANDE BASIN 273 

Pecos River near Malaga , N. Max . 

Location .- Water-stage recorder, lat. 32°12 ' 30" , long . 104°01'30", in NWfNWt sec. 19, T. 

24 9. , R. 29 E., 3 m1les southeast or Malaga and 3 m1les downstream rrom Black River . Datum or gage is 2 , 898 .68 feet above mean sea level, datum or 1929 . 

Drainage area .- 19,190 sQuare mlles (contributing area) . 

Records available .- May 1920 to September 1925 and October 1931 to September 1941 in 

reports o! Geological Survey . January 1921 to December 1931 in reports of State engi- neer . 

Extrames.- Maximum discharge during year, 63,700 second-teet Sept . 21 , rrom rating curve extended above 22, 500 second-feet by logarithm1c plotting; max!Jnum gage height , 32 .1 

!eet May 22; minimum daily discharge, 62 second- feet Apr. 22 . 1920-41: Maximum discharge, that or Sept . 21, 1941; maximum gage height, that or May 22, 1941; no !low Aug. 20-22, 1934 . 

Remarks .- Records good . Flow regu lated by Alamogordo , McMillan , and Avalon Reservoirs 

----analiy several small darns that divert for power and irrigation. Many , diversions above station !or irrigation . 

Cooperation.- Gage-he ight record. collected in cooperation with Bureau or Reclamation . 

Discharge. in second-teet, water year October 1940 to September 1941 

Dll.l Oct. 

1 135 2 129 

3 127 4 129 

5 127 

6 127 7 118 8 124 

9 124 10 118 

11 133 12 157 

13 2, 010 14 710 15 308 

16 250 17 178 18 143 

19 137 20 143 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

143 

155 

147 

149 

149 

145 

141 

137 

129 

124 

116 

Nov . 

111 

116 

118 

116 

118 

112 

116 

129 

122 

109 

112 

112 

105 

127 

131 

122 

107 

1ll 

109 

122 

103 

ll6 

120 

122 

112 

111 

102 

112 

105 

105 

O.c . 

105 

105 

102 

98 

107 

112 

127 

133 

122 

129 

131 

127 

143 

151 

149 

166 

143 

161 

185 

149 

141 

145 

168 

133 

145 

185 

185 

187 

191 

180 

180 

Month 

Jan . 

153 

161 

161 

168 

153 

141 

159 

147 

131 

141 

157 

157 

145 

191 

178 

212 

159 

133 

191 

188 

137 

126 

139 

145 

143 

139 

143 

143 

147 

145 

133 

Feb . 

133 

157 

155 

135 

139 

155 

159 

133 · 149 

153 

161 

166 

133 

111 

127 

147 

122 

151 

143 

172 

185 

178 

172 

143 

145 

15:1 

159 

143 

Oc tober . ....... . .... . . ..........• , . , .... . . Hoveaber ... . . , . . . . ........... . ........... . Oeceaber .......... . .. . ..... .. . . ........... . 

Calenda r year 1040 . ............. . ... . ... . 

Mar. 

133 

124 

103 

85 

84 

90 

91 

84 

79 

76 

75 

75 

65 

85 

100 

100 

137 

149 

129 

120 

120 

174 

185 

189 

717 

585 

212 

157 

151 

139 

126 

Secondtoot-days 

6,962 

3,433 

4,483 

46 ,725 

Apr . 

118 

133 

126 

100 

93 

96 

84 

79 

84 

79 

79 

85 

78 

78 

71 

75 

86 

78 

68 

103 

409 14,000 

s,aoo 

4,670 

5 , 990 

9 , 730 6, 970 

5,500 

1,490 

485 

1 , 760 

2, 290 

1 , 530 

582 

2, 540 

579 

401 1 , 100 

652 

495 

79 875 62 22,900 

95 28, 000 

100 13,800 100 11 , 300 

131 

178 

157 

112 

98 

14 , 000 14,700 

12, 800 

10,500 

10, 200 9,580 

2 , 010 

131 191 

2, 010 

June 

6 ,630 4,940 

4,840 

4 , 840 

4,640 

4 , 5-10 

4,050 

4,340 

4,940 

6,030 

5 , 260 2,840 

~ 

1,850 

4 , 640 

2 , 840 1,300 

2,170 

2, 100 1,100 

1,350 

2,170 

1 , 770 1,650 

2, 380 

770 

2,840 645 

385 

815 

116 

102 

98 

56 

July 

860 

950 1,~0 

1,470 

1 , 050 

645 

645 

565 

511 

323 

190 

195 

255 

228 

,~0 

2,520 

4, Z'SO 

5,870 

4,050 

2,890 

284 

505 

290 

252 

240 

250 

284 

596 

525 

272 

208 

205 

388 

305 

228 

244 1 , 080 1,650 

1 , 890 

734 

Sept. 

1,020 

1,000 

1 , 000 1,150 

1,200 

1,100 625 

665 

385 

317 

502 

272 

430 

497 

420 

388 

305 

452 

1,060 

1 ,100 

344 438 22,600 220 2,170 20,4 00 

192 1 , 890 700 

208 1, 770 1 ~g. 200 950 1 , 490 n. , 900 

1 ,100 

1 , 280 1,550 625 

592 

350 

Mean 

225 

114 

u s 

128 

413 

255 

781 1 , 470 1,590 

1,120 

30 , 300 'Z1 ,100 15 , 000 9 , 720 7.,640 

1'\UDOCf ill 

acre-fee t 

13 ,810 

6,810 

8 , 81l0 

92 , 690 

January ....................... ............. 4,746 212 126 153 9, 410 

February ............ ... ...... . .. . ... .... ... 4, 057 183 111 14 5 8 , 050 March ....... ................ . .. . .......... . 4,535 717 65 146 9,000 April. . .. .. .. .. . . .. • • .. . . • .. • .. • .. .. . .. .. .. 2 . 903 178 62 96.8 5 , 760 May. ... . .. . . ... ............ . ..... . .. ..... . .. 213, 494 28 , 000 401 6 , 887 423,500 June.................................. ... .. 89 , 505 6 , 630 385 2,984. 177 , 500 July.. ........ ................ ............. 36 , 288 4,230 190 1 , 171 71 , 900 August. ............... ... ......... . . ... . . .. 23,195 2, 170 205 748 46 , 010 

Septe•be r . ................. . . .......... ... ' 1-_:20:::9!.:, 24::.:.:8+_.:3.:0!.:, ::0:.:0+---27:..:-=2=-t-.::6~, :-97:'5:-+:--:4:.:1:.:5.:.. • 0:'00::-

Wat 602, 849 30,300 62 1 , 652 1,196, 000 er year 1040-41 ......... · 

a No gage-height record; diaoharge cozaputed on bade or reoord:a t or statlona at Carleb&d and at 

Rod Blurt. Rote.- Gage holgbte ltay 26 to July <. computed tro111 graph baaed on ataft-gage readlnga obtained 

t wrce-a:.tly . 
274 RIO GRANDE BASIN 

Pecos Rlver a t Plerce Canyon Crosslng, near Malaga , N. Mex . 

Locatlon .- Water-s tage recorder, lat. 32°11'20" , long . 103°59 '00" , ln SEt sec . 28 , T. 24 

s. , R. 29 E. , a quarter o! a mlle upstream !rom Pl e rce Canyon Crosslng and 6 mlls s sout heast or Malaga. 

Dralnage area.- 19, 260 square mlles (contrlbutlng area) . 

Records avallable .- July 1938 t o September 1941 (d lscontlnued) . 

Extremes.- Maxlmum gage helght durlng year, 24 .8 tee t May 22, rrom noodmarks (dlecharge not determtned); mlnlmum dally dlschar ge , 63 second-tee t Mar . 13, Apr . 19 . 1938-41: Maxlmum gage helght, t hat o! ~ay 22 , 1941 (dls charge not determined); 

mlnlmum dally dlscharge , 33 second-tee t Aug . 12, 13, 1938 . 

Remarks.- Records good except those ror perlods or no gage-helght record , whlch are !alr. 

----r:row-regulated by Alamogordo , McMillan , and Avalon Reservoirs, and s everal small dlverslon and power dams below Carlsbad . Many dlverslons a bove stat i on for lrrlgatlon. 

Di scharge , i n second-tee t, wa te r year October 1940 t o September 1941 

Day Oct . Nov . Deo. Jan . Feb . War. Apr. May June J uly Au& . Sept. 

1 151 128 115 177 138 144 118 128 a? , 000 910 314 1,040 2 155 128 1 28 144 141 134 138 13,000 as,soo 860 334 1 , 010 3 1 51 134 125 181 151 115 118 7 , 540 a S , OOO 1, 730 328 1,010 4 151 144 115 166 141 84 112 4 , 830 a4 , 900 1,400 283 1 , 130 5 144 141 122 159 141 84 00 5 , 740 • • , eoo 1,0eo 295 1 , 200 

6 151 134 115 144 144 91 107 10, 600 a4 ,600 697 259 1 , 130 7 141 131 141 148 141 89 107 8 , 220 &4,200 715 288 661 8 144 138 148 1 62 141 86 91 4 , 250 a4 , 300 616 430 679 9 151 138 131 131 151 eo 91 1,840 a4 , 800 5S9 347 451 10 141 128 131 148 141 76 84 536 a6 , 000 402 314 334 

11 155 128 138 151 144 73 86 al,600 5,510 253 241 328 12 174 128 138 181 190 69 82 a 2,200 2, 720 224 218 295 13 2 , 000 122 144 141 141 63 eo al,400 860 265 507 430 14 840 134 151 190 115 57 eo a?OO 1 , 670 334 357 508 15 351 138 155 190 138 102 73 &2 ,400 4, 770 1 , 840 271 430 

16 260 131 159 202 141 9 4 69 aeoo 2 , 850 2 , 340 253 430 17 007 1 22 165 181 144 141 73 a450 1,390 4 , 170 1 , 000 328 18 152 122 151 134 14 1 148 78 al , OSO 2 , 090 3 , 790 1 , 540 430 19 1 51 125 194 174 151 134 53 a 700 2 , 090 3 , 930 1 , 850 1,000 20 151 13 4 166 18!> 170 118 86 a550 1,170 3 , 190 81 ~ 1 , 050 

21 151 118 138 138 194 118 104 a eoo 1,340 a4 50 451 a22,000 22 165 2~ 148 138 190 159 65 &22 , 000 2 , 030 a25 0 1 , 960 &.21 , 000 23 162 128 151 141 181 190 9 4 a28, 000 1 , 730 a200 1 , 850 &22 , 000 24 155 131 155 155 162 174 104 a.l6 , 000 1 , 610 235 1,730 o20,000 25 162 131 134 151 134 732 115 al2 , 000 2,400 820 1 , 500 o 21,000 

26 152 1 22 190 14 8 166 4 28 131 al3 , 500 006 1 , 140 494 o30 , 000 27 1 59 115 181 151 144 211 185 a lS , OOO 2 , 920 1 , 280 295 o 28, 000 28 1 55 118 190 144 151 177 170 al3 , 000 1 , 000 1 , 380 704 18, 000 29 148 118 159 151 - 155 131 a l1 , 000 360 690 1,420 a10 , 000 30 144 11 5 190 148 - 144 109 a10 , 500 705 444 1,560 &8 , 000 31 131 - 185 134 - 131 - a10 , 000 - 388 1,170 -

Month Second- lllaxi•u• lll.lni•u.m Mean Runoff in root~aya ao re-reet 

October .. . .... ·· ········· .................. 7,63 7 2 , 000 131 245 15 , 150 

November ....... ...... ... ...... ...... ...... . 3 , 84 6 14 4 115 128 7 , 830 

Decembe r ...... . .... ...... ········ ·•······· · 4. , 654. 194 115 150 9 , 230 

-- ----- -- ---- --- --- -- -- -- ------ Ca lendar year 194. 0 .... .. ...... ..... .. ... 4. 9 , 989 2 , 000 60 137 99 ,150 

-- ----- --- --· - - - --- ------ ------ January . . ... . . . . . . . . . . . . . . . . . . . . ... .. . . . ... 4, 888 202 131 158 9,700 

Febrnary . ........... .. .... ... ...... ...... .. 4, 227 194 115 151 8 , 3eo 

Waroh . . ... ... . . . . . . . . . .... .. .... . . . ... . .. . . 4, 611 732 63 149 9,150 

April . . .. . .. . .... . ..... . .. ... ...... . ..... . . 3 , 033 185 63 101 5 , 020 

May ...... ............ .... .. ·· ···· 220 , 334. 28,000 128 7 ,108 437 , 000 

June ..... .. . .. . . ............ . .... . . . .. .. ... 91 , 211 7,000 380 3 , 0 40 180 , 900 

July ... . .. .. . . . . ................ .. ..... . ... 36 , 692 4. ,170 200 1 , 184 72,780 

Augu.st .. ... .. ............ . ....... . .. . ...... 23 , 388 1 , 960 218 754 45 , 390 

Septeaber . . . ... . ... . ... . .......... ····· ···· 213 , 874 30, 000 295 7 , 129 4.24 ' 200 

later year 1940-41 . . . .. .. .... ···· ····· ·· 6 1 8 , 395 30 , 000 53 1 , 694 1,227, 000 

a Jfo gage-height re cord; d1a charge compu ted on ba s ls or recorda ror ata tiona near Ma l aga a.nd at 

Red Blu rt. Rot e.- Gage he1ghta t o r June 11-24 computed from g raph baaed on sta rt-gage read1nga obtained two I t otiiltl.mea da l ly . 

• 
RIO GRANDE BASI N 2?5 

Pecos R1 ver at Red Blutt, N. Mex. 

Location.- Water-stage recorder, lat. 32°04 '40', long . 104°02'20' , at Red Blurt, Eddy County, juet downstream !rom Red Blurt Creek and 51 m!les upstream !rom Delaware 

Rive r. Datum ot gage Is 2,850.0 teet above mean sea level, datum ot 1929. 

Drainage area .- 19 , 540 square miles (contributing area) . 

Records available.- October 1937 to September 1941. May 1914 to Septembe r 1937 at sl te 6 miles downstream near AngeleA , Tex . ; records comparable to comb ined now ot Pe cos River at Red Blutr, N. Mex., and Delaware River near Red Blurt, N.Mex. 

Extremes.- Maximum discharge during year, 52,600 second-teet May 24 (gage height, 28.3 teet); minimum, 62 second-teet Mar. 14, Apr . 20. 1937-41: Maximum discharge, that ot May 24, 1941 ; minimum, 34 second-teet 

Aug. 13, 1938 . Maximum stage known prior to 1941 , 28.0 teet In October 1904, according to Information furnished by Chle! Engineer or Panhandle & Santa Ji'e Railway Co . 

RemarkS .- Records excellent except those above 2,000 second-teet, which are good . Ji'l ow ---;:egu:Iated to large extent by reservoirs above Carlsbad. Many diversions above station tor Irrigation. 

Discharge in second -teet water y·ear October 1940 to September 1911 

Da) Oct . Nov . Dec . Jan . Feb . War . Apr . Way June July Aug . Sept. 

1 150 118 109 101 138 138 125 138 ,~ 20 1,060 358 1 , 160 

2 152 118 120 138 lU 127 132 7 , 460 5 , 170 907 365 1,120 

3 145 123 120 188 152 120 120 9,210 4, 610 1,810 350 l, 120 

4 148 132 118 162 155 89 134 4, 750 5,030 1 , 700 325 1 , 120 

5 138 127 Jl6 165 134 60 85 4 , 610 4, 610 1,~00 300 1, 300 

6 138 125 127 168 146 83 97 7, 860 6, 730 862 304 1 , 270 

7 136 127 136 1~8 134 83 107 8,200 4 , 540 624 255 658 

6 129 141 146 175 143 67 97 4, 840 4, 190 666 <49 706 

9 141 145 134 127 141 76 89 2 , 100 4, 330 666 383 569 

10 134 127 127 143 125 75 89 504 5 , 730 467 372 336 

11 148 120 136 141 129 71 65 1 , 460 6, 590 361 290 332 

12 168 126 141 197 160 73 63 2 , 150 3,550 265 232 326 

983 114 143 134 146 66 62 1 , 760 1 , 610 322 710 343 13 82 714 l , 410 382 475 512 14 1, 430 123 150 166 126 62 1 , 500 3 , 950 1,550 332 412 15 496 136 166 199 114 82 63 

293 134 146 160 126 95 76 1, 520 3, 360 2 , 170 276 449 16 1 , 720 3 , 660 822 350 17 235 123 183 214 160 125 76 347 4,050 1, 510 390 18 172 123 136 138 116 143 87 1·, 0 30 1,940 

80 767 2 , 090 4,050 1 , 920 788 19 160 120 186 146 134 141 M2 1,770 3, 910 1 , 260 996 20 148 129 183 211 160 123 76 

150 118 134 134 183 116 126 477 1 , 100 9 46 535 19 , 000 21 14 , 800 2 , 060 365 1, 480 10, 900 22 150 114 152 146 180 162 85 

1eo 123 us 127 178 197 89 27 , 700 2, 000 304 2,150 22 , 800 23 290 1,920 18, 200 24 165 126 175 150 168 162 114 30 , 200 1, 740 1 , 780 18, 900 150 127 120 145 2~ 689 134 11 , 000 2 , 270 513 25 

186 143 155 63A 138 1~,300 1,380 1, 370 907 25, 600 26 150 118 29 , 800 138 252 230 14, 600 2 , 800 1,300 401 27 150 112 183 155 14,000 1,590 1 ,4 20 45~ 18, 000 28 145 112 188 138 141 199 208 10, 600 134 11e 194 158 - 152 168 10, 700 496 946 1, 460 29 127 9 , 000 724 545 1,620 7, 360 136 112 194 152 - 152 30 

31 126 8 , 080 - Hl 1,3130 - - 186 138 - 136 - Second- Moan Runo rr i n 

Month root.-days Wa.x1mum Min111WD acre-feet 

7 , 241 1 , 430 125 234 t4 , 60 Oc t ober .. .. ........ . . . .......... . ...•. .. . . . 3,707 146 112 124 7,350 No·, e•be r . ............ . ... .. ..... .... .. . ... · , 4, 676 194 109 151 9,270 December ............. .. ···· ··· ···· ·· ··· ... ------ ------ - -- -- ------ -- --- 1940 . .. . 61,275 1,130 60 140 101 , 700 Calendar year ............. .... . -- ---- ---- - - -- - -- -- - - -- - -- 4, 900 2H 127 158 9 , 720 January ... . ..... . . .. ... .... ..... ....... ... 4, 060 183 114 145 8 , 050 February . . . . ........ . .. .. . . · · · · · • · · · · · · · · · · 4 , 788 689 62 154 9 , 500 March . .... . . .... ..... .. ........... . ....•. · · 3, 300 230 76 110 6 , 550 April . .. .. .. . •....•..•.. . . .•... . . ··· • · · • · · · 215 , 559 30, 200 138 6, 954 427,600 May . ..... . •...... •.. ·• ····················· 95,430 e,320 496 181 189 , 300 June ........ . .... . .. . ... ······ ·········· ·· · ~9,452 4,050 265 1, 273 76, 250 J uly ... . ............... ·· ················ ·· 25,390 2, 150 232 819 50 , 360 August .. .. ·· ······ ···· ··· ······ ······ ··· ... 195 , 628 29 , f'OO 325 6 , 621 388, 000 Sept ember . ..... . ...... .. ··········· ···· ···· 604 1~0 30 , 200 62 1 , '355 1 , 198, 000 Water year 1940- 41 ... .... ... ·· ·· ··· · ··· ... 13 800 s~c. rt ; ., 24 Peak c1l8char o.- lhty 2 (9 a.m.) 17 , 600 aeo .-rt. , Ka y 22 (Sr.~o PS ! 23 ()2:~0 a . m. ) 26,700 seo.-rt. ; CU!r SO a .m. ) 5 ,600 soc.-rt. ; Sept. 21 (l p.m .} 40 , 700 sec .- t . j 8P · 

Sept. 27 (5 a . m.) 32, 500 uc. - rt. 
276 RIO GRANDE BASIN 

Pecos River near Orla, Tex. 

Location .- Water-stage recorder, lat. 31°49 ' , long . 103°48', in Ei sec . 26 , Blk. 56 , Texas 

& Pacltic Railway Co. Survey, about 600 teet upstream !rom Pasotex pipe 11ne crossing, 

6 miles southeast or Orla , Reeves County , 16 miles downstream !rom 8alt (Screwbean) 

Draw and 19 miles downstream !rom Red Blu!! Dam . Datum or gage IS 2, 718 .0 teet above mean sea level , datum or 1929 . Drainage area .- 21 ,300 square miles (contributing area). 

Recoras available .- May 1937 to September 1941 . ES< tremes .- !1iiX1mum di scharge during year, 25,700 second-teet Sept. 29 (gage height, 20 . 74 

teet); minimum dally, 2 .0 second- teet (regulated) Dec. 27. 

1937-41 : Maximum d ischarge , that or Sept. 29 , 1941; minimum dally, 2 .0 second-teet 

(regulated) June 3, 1937, Dec . 27, 1940 . Revisions .- The maximum discharge !or the water year 1937 has been revised to 6,530 second-t eet J une 9, 1937 (gage height, 9 .93 teet), superseding !lgures published In 

Water-Supply Papers 828 , 868 , 878, an<! 898. Peak discharge over spillway o! Red Blu!! 

Dam , 4 miles north or Orla has been revised to 5L~o second-teet June 9, 1937, super- seding figur es published In Water-Supply Papers = (p. 429) and 878. 

Remarks .- Records good except those !or periods or doubtful and no gage-height record and 

--u;oSe above 10,000 second-teet, which are !air. Flow regulated by Red Blutr Reservoir 

(see p . 281) except ror occasional runorr !rom draws between dam and station. Many 

diversions above station tor irrigation . Revisions.- Revised figures or discharge, In second-teet, !or the high-water period in the water year 1937, superseding those published In Water-Supply Papers 828 and 878, are g iven herein: 

JUne 6 

7 

8 

9 

2,730 

2 , 870 

3 , 800 

5 , 100 

Hopth 

June 10 

11 

12 

13 

3 , 870 

2 , 150 4 , :500 4 , 090 

June ... .. . . •........•......... . .. . 

The peri od Hay 26 to Sept . 30 · · · 

June 14 

15 

16 

17 

5,100 

3 , 230 4 , 090 

3 , 580 2 , 550 

2 

l'1.ean 

June 18 

19 3 , 660 2 , 230 

Ru.norr 

(acre - feet) 

1 , 806 107,500 

188,100 

Discharge , in second.- toet, water year October 1940 to Seotember 1941 

Day Oct . Nov . Deo . Jan . Feb . War . Apr . May June July Aug . Sep t . 

1 67 41 2 . 7 5 . 4 26 2 . 4 11 123 ~11 200 1,490 817 976 

2 67 12 2 . 7 3 . 6 6 . 1 2.4 313 160 al0 , 500 1 , 350 706 1 , 060 

3 67 3.9 2 . 7 3.3 6 . 4 2 . 3 478 46 5 , 560 1 , 280 620 942 

4 •• 3 . 3 2 . 7 2 . 7 20 2 . 1 601 19 6 , 630 1 , 350 571 847 

5 67 3.0 2 . 7 2 . 7 4.8 2 . 1 614 11 2 , 770 1 , 420 474 1 , 180 

6 65 2.7 2 . 7 2 . 7 22 2 . 3 614 9 . 6 7 , 190 1 , 580 459 1 , 180 

7 67 3 . 6 2 . 7 2 . 7 6 . 5 2 . 3 014 6 . 9 7 , 770 1 , 120 432 1 , 150 

8 67 6 . 6 2 . 7 2 . 7 29 3 . 0 620 4l 8 , 030 1 , 210 473 1,010 

9 57 4 . 5 2 . 7 2 . 7 5 . 1 3 . 3 644 106 6 , 210 1 , 070 h 467 728 

10 57 3 . 3 2 . 7 2 . 7 4.5 .~ 559 123 5 , 680 1 , 720 456 781 

11 61 2 . 7 2 . 7 2 . 7 21 .~ 559 129 4 , 300 1 , 660 456 607 

12 64 2 . 7 2 . 7 3 . 0 4 . 8 2 . 4 583 130 2 , 620 1 , 590 451 721 

13 260 2 . 7 3.0 3 . 0 3 . 6 2 . 1 663 156 1 , 520 456 633 

14 58 2 . 7 3 . 0 2 . 7 3 . 3 9 . 7 676 133 1 , 450 406 582 

15 19 3 . 0 3 . 0 3 . 0 19 3 . 6 676 129 697 456 582 

~1 000 

16 12 3.0 2 . 7 2 .4 4 . 5 2 . 7 676 126 754 456 377 

17 9 . 6 3.0 2 . 4 2 . 4 3 . 9 6 676 129 1 , 040 456 445 

18 6 . 2 3 . 0 2. 4 2 .4 20 4 . 5 676 156 1 , 850 462 757 

19 7 . 5 3 . 0 2 .4 2 . 4 4 . 5 3 . 0 670 163 1 , 670 2 , 590 456 1 , 490 

20 6 . 6 3 . 0 2 . 4 2 . 7 3 , 3 2 . 7 682 219 1 , 530 2 ,340 571 1 , 320 

2 1 6 . 1 3 . 0 2.4 30 3 .3 2 . 7 676 192 1 , 730 2 , 540 595 2 , 200 

22 45 3 . 0 2 . 3 45 16 4 . 5 670 1 , 580 1 , 350 2,130 571 ? , 270 

23 73 3 . 0 2 . 4 21 5 . 1 4 .s 620 2 , 11 0 1 , 550 1 , 720 764 15 , 700 

24 96 3 . 0 2 . 4 7 . 6 4 . 5 3 . 0 614 6 , 780 1 , 750 1 , 580 1 , 040 20 , 500 

25 120 3 . 0 2 . 7 25 18 7 . 7 607 7, 970 1 , 550 1,110 1 , 250 21,800 

26 123 2 . 7 2 . 3 4 . 2 3 . 9 3 . 6 589 7 , 700 1 , 660 1 , 090 1 , 320 21 , 800 

27 123 2 . 7 2 . 0 s.o 3.0 2 . 4 310 9 , 180 1 , 720 1 , 080 1 , 750 23 , 000 

28 110 2 . 7 2 . 3 22 2.4 2 . 4 183 ~<;J 600 1 , 930 1 , 080 976 23 , 700 

29 4l 2 . 7 4 . 2 7 . 3 2 . 3 126 12 , 200 1 , 790 1 , 150 BB1 23 , 000 

30 44 2 . 7 16 21 2 . 3 123 ~200 1 , 550 1 , 060 97 6 19 , 300 

31 43 « 10 2 . 3 600 942 1 , 040 

Month Second- Maxi mum MinJ_mum lie an Runott in toot-days ac re-teet 

Octobe r ..... ........... 1 , 976 . 2 260 6 . 1 63 . 7 3 , 920 

November ....... 14 1.4 41 2 .7 4. 71 280 

Decembe r .... ....... . . . . 136.7 44 2 . 0 4 . 41 271 

Calendar yea r 1940 . . . . . .. .. ... ... 46, 893.8 636 2 . 0 134 96 , 960 

------- - January .... .. .. . 256. 2 45 2 . 4 8 . 26 SOB 

February ... . . .. . ..... ....... ...... ... ... ... 276 . 5 29 2 . 4 9 . BB 648 

Warch .. ... .. . . .. ··················· ··· 96 . 6 9 . 7 2 .1 3 .19 196 

April . ... .. .. . . . . .. .... . ... . . . ..... . .. .. . .. 1 6 , 1 23 662 11 537 31 , 980 

ll&y ........ •..• . .... ....... .... .... . 8 4, 229 . 5 12 , 200 6 . 9 2 , 717 1 67,100 

June ... . ... . . .. ... ... .. ..... .... ..... ...... 104, 440 11 , 200 3 ,481 207 , 200 

J u ly . ... .. .... . .. ...... . ....... . .. 44, 183 2 , 590 697 1 ,425 67 , 640 

August. .. · ····· · · ·· · · ·· · · 21 , 258 1 ,750 406 686 42, 160 

Septea_!>e r .... . . . . . . . . . . . . . 195 , 458 23 ,700 377 6 , 515 387 , 700 

Wat e r yea r 1940-41 .. .. ............ 468 , 577 . 3 23,700 2 . 0 1 , 284 929 , 500 

at a R: ~~~fh~~t r ecord; dlacharge c omputed on basis of known range in stage and releas e recorda 

d Doubt tul gage- height r ecord; d la charge computed on bash ot est1.mated gage helghta . h Compu t ed f r om one ata.tt- gage r ead1ng . 
RIO GRANDE BASIN 277 

Pecos River at Pecos, Tex. 

Location.- Water-stage recorder, lat . 31°26', long. 103°28 ', 70 reet upstream rrom Texas 

& Piiclrl c Railway Co . bridge , 1.7 miles east or Peco.s, Reeves County, and about 11 

~~i: ~~si~~ rrom Toyah Creek . Datum or gage Is 2 , 554 .0 reet above mean sea level, 

Drainage area.- 22 , 100 square mlles (contributing area) . 

Records available .- August 1939 to September 1941. January 1898 to June 1907 at Clume or Bafstow I rrigation Co . (old Margueretta Canal Co.), 6 .4 mlles upstream, published as Pecos River near Pecos , Tex. April 1914 to August 1915 at site 7 miles downstream, 

published as Pecos River near Barstow, Tex . March 1922 o July 1926 at site about 10 

miles upstream, published as Pecos River above Barstow, Tex . 

Extremes .- Maximum discharge during year, 22 ,200 second-teet Sept. 30 (gage height, 17 .68 t eet) ; minimum dally, 7.8 second-teet (regul ated) Jan. 18 . 1898-1907, 1914-15, 1922- 26, 1939- 41: Maximum gage height, about 18 reet, present site and datum, Oct . 5 , 1904 , (discharge not determined) ; minimum dally not determln.ed , arrected by di ve rsions. Flood or August 1893 reached approximately the same stage as that or Oct. 5, 1904 , according to Information rurnlshed by loce1 residents. 

Remarks.- Records good except those ror periods or fragmenta ry or no gage-height record, -wJiTCii are ralr. Flow regulated to large extent by reservoirs upstream rrom Orla. 

Several diversions ror Irri gation between Orla and this station. 

Discharge, i .n second-feet , water year October 1940 t o September 1941 

Da Oct . Nov . Dec . Jan . Feb. War. Apr . Way June July Aug . S..pl. 

34 25 12 11 - 10 9 .3 9 . 6 86 9 , 600 1 , 360 851 885 1 

2 34 20 12 11 10 8 . 8 9 . 6 83 10, 600 1 ,150 749 834 

3 31 23 12 11 10 8 .5 9 .6 HO 10, 800 !654 938 

4 M 26 12 10 10 8 . 5 260 105 10, 400 f 613 868 

5 31 23 12 10 10 9 . 0 384 81 8 , 800 aJ.,040 ! 562 715 

6 26 19 12 10 10 a.a 375 55 7,360 r 52B 902 

7 27 17 12 9 . 9 10 a.a 384 44 6 , 060 938 !494 992 

8 28 17 12 9 . 6 10 9 . 0 375 43 6 , 260 758 rH3 974 

9 28 15 12 9 . 6 10 9 .3 375 42 6, 8?0 749 !426 938 

10 30 H 12 9 . 3 10 9 . 0 400 40 6 , 930 654 rna 715 

11 63 13 12 9 . 0 10 9 . 3 477 93 6 , 580 596 !392 681 

12 41 13 12 9 .3 10 9 . 0 511 82 6 , 260 562 !384 613 

13 95 13 12 9 .0 10 9 . 0 511 89 5 , 500 528 392 528 

14 100 13 12 8 . 5 12 9 . 3 4<3 87 3 ,440 494 367 766 

15 26 13 1.2 8 . 2 H 9 . 3 409 73 1 , 410 460 335 <43 

16 18 13 12 a.o 13 9 . 3 409 56 958 418 303 375 

17 16 13 11 a.o 11 11 409 49 n ,02o 343 303 351 

18 16 13 12 7 . 8 10 10 409 61 r1 , 750 468 295 418 

19 16 13 12 a.a 10 10 418 71 2 ,160 810 263 546 

20 16 13 12 11 9 . 9 9 . 9 418 81 1 , :590 l ,MO 224 974 

21 16 13 11 11 9 . 9 9 . 9 418 93 1 , 520 n,eao 224 1 , 120 

22 H 13 11 11 9 . 9 10 400 120 1 , 500 1 , 820 295 1 ,140 

23 14 13 11 11 11 10 400 806 1 ,400 1 , 920 369 1 , 780 

24 15 13 11 11 10 9 . 9 400 1 , 250 1 , 300 1,750 426 2,700 

25 18 12 11 11 10 10 375 1 , 660 1 , 420 1 , 360 681 3 , 210 

26 29 12 11 10 10 9 . 9 375 2 , 550 1 , 400 1 , 050 868 ~0 

27 56 12 11 11 9.9 9 . 6 400 3 , 270 1,400 885 a974 7,300 

28 66 12 11 11 9 . 9 9 . 6 305 4,600 1 , 340 956 974 13, 000 

68 12 11 10 - 9 . 6 189 6,100 ~0 902 868 19, 900 29 10 - 9 . 6 120 6,100 1,520 920 749 21 ,400 30 56 12 11 

25 - 11 10 - 9 . 6 - 7 ,100 - 920 BOO - 31 

Second- Month root-days Maximum Win i mua Wean Runor r in acre-feet 

October ......•.... ....... . . . .... .. . . ....... 1,003 100 14 M . 9 2,150 

453 26 12 15.1 899 Novembe r ........... . . . . . . . . . . . . . . . . . . . . .... 360 12 11 11.6 714 December ....... .......................... .. ------ ------ ---- - -- - -- - ---- - Calendar year 1940 ••••• • •• · • ••i• ••• •• • •• 28 , 237 .ua 10 77 . 2 56 , 010 

------- -- - .. ---- -- ---- -- - - - - January ................. ·. · ··· · ····· • · · · · · · 306. 0 11 7 . 8 9 .67 607 

290 . 6 14 9 . 9 10. 4 576 Feb ruary . ......... . ..... .. . .......... ..... .. 292 . 8 11 8 . 5 9 .4 5 581 Waroh . . . .. ... . ... .... ..... . ....... . . ... · · · · 10 , 377 .a 511 9 . 6 346 20,580 April . ··· ···· ······ ·· .... . .. .... ···· ·· · 35, 110 7 ,100 40 1 ,133 69 , 640 Way . ............ . ..................... .. ... 128 ,1 28 10,600 958 4 , 271 254 ,100 June ........ . . . . ························ ··· 29 , 951 1 , 920 343 966 59 ,410 J uly ... . . . . . . . .... ...... .. ..... .. .. .. ······ 16, 224 974 224 523 32 ,180 August . .... ··· ········ ····· ·· ············ 90, 385 21 , 400 351 3 , 013 179,300 September .. . .. ······ ····· ······ ····· .. 

Water year 1940-41 ··· ······ ······· ······ 312 , 961. 1 21 ,4 00 7 . 8 857 620, 700 

. ln eta e and records tor eta - a No gage -height record; discharge computed on bade or known rang 8 

tl~n p~~~e~~!~ gage -height record; discharge computed from pertly eati.ma'ted gage heights . 
278 RIO GRANDE BASIN 

Pecos River below Grand falls, Tex. 

Location. - Water-stage recorder, lat . 31°18' , long . 102°46 ', at bridge on county road 

between Grandfalls and Imperial , 7 .1 miles southeast or Grandfalls, Ward County and 

about 10 m!les downstream rrom Chacatorl Draw. Datum or gage Is 2 ,373. 0 reet abova mean sea level, datum or 1929 (levels by Corps or Engineers, U. s. Army). 

Drainage area .- 27,820 square miles (contri buti ng area) . 

Records available.- August 1939 to September 1941. December 1921 to July 1926 at s l te about 12 mlles downstream (published as Pecos R1 ver near Buena VIsta, Tex . ). 

Extremes .- Maximum discharge during yea r 1 8 ,080 second-t eet June 6 (gage height, 18 .44 t eet); minimum dally , 19 second-feet \regulated) Apr. 16-22 . 1921- 26 , 1939-41: Maximum discharge, that or J une 6 , 1941; minimum dally, 8 .0 

second-rest (regulated) July 27, 1925 . l"lood or 1915 Is largest known and that or September or Oct obe r 1932 reached a stage or 18 reet ; rrcm I n!ormatl on furnished by local resi dents. 

Remarks.- Records good. !"low regulated to large extent by reservoirs upstream ! rom Orla. 

------mny-dlverslons between Orla and station ror Ir rigation . 

Discharge, i n second-teet . water year October 194. 0 to September 1941 

Day Oct. Nov . Dec . Jan . Fob . Mar. Apr . May Juno July Aug . Sept. 

1 45 eo 70 69 63 60 5~ 22 2 , 360 1 , 060 608 h470 

2 40 as 70 69 &4 59 54 30 2 , 950 1 , 080 570 h &45 

3 39 86 69 69 64 59 55 46 3 , 580 0~0 508 h772 

4 ~5 90 69 69 63 59 54 ~2 4, 590 940 420 hl , 060 

5 30 89 69 68 6~ 59 55 

·~ 7 , 120 85~ ~~ bl,llO 

6 28 sa 69 66 62 58 9 4 32 8 , 080 772 248 h940 

7 27 90 69 65 62 58 263 29 7 , 920 799 2H h882 

8 27 91 69 65 62 56 125 24 7,000 882 205 hl, 030 

9 27 88 69 65 64 56 ~ 70 6 ,310 772 197 hl , l40 

10 29 86 69 64 64 56 29 68 5 , 930 670 2CTI hl,llO 

11 ~ as 68 64 64 56 25 59 5 , 810 670 252 h998 

12 284 as 69 64 63 55 22 69 s,:no 520 1 50 h9ll 

13 HS 82 78 64 62 56 22 8 4 6 , 860 4?0 129 h826 

14 92 8 1 75 &4 60 56 21 91 6 , 860 470 118 h799 

15 sae 81 73 64 61 55 20 95 6,310 408 110 h826 

16 132 eo 71 53 61 55 19 97 5 , 810 ~00 82 h799 

17 47 77 69 62 60 56 19 97 5 , 360 221 65 h670 

18 30 77 69 63 61 56 19 97 3 , 890 147 60 hMS 

19 27 76 69 66 61 54 19 95 1,770 119 65 h645 

20 25 75 69 62 61 55 19 100 1 , 510 224 94 h720 

21 24 72 68 54 60 55 19 104 1 , 610 639 81 h745 

22 ~ 72 68 53 59 56 19 97 1 , 610 799 65 h826 

23 23 7l 68 54 so 56 21 99 1 ,420 772 66 1,170 

2.4 23 72 68 55 58 55 22 8 4 1 , 290 863 102 1 , 290 

25 23 71 68 56 60 56 22 515 1 , 200 969 191 1,480 

26 59 71 66 56 60 59 ~4 85~ 1 ,060 1,060 ~60 1 , 610 

27 56 71 65 56 60 58 22 911 1 ,170 884 445 1 ,780 

28 52 71 66 58 60 56 24 998 1,170 545 558 1 , 950 

29 62 71 68 58 - 55 28 1 ,110 1,050 595 608 2 , 230 

30 69 70 69 59 - 54 25 1,310 1,030 608 420 2,940 

31 72 - 70 6l - 63 - 1,710 - 595 432 -

Month Second- Maximum Mini•UD Mean Runorr in root-days acre-teet 

October . . . . . . . . . . . . . . . . . . · · · · · ···· · ·· ·· · .. . 2 , 304 668 23 74.3 4, 570 

November . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 2 , 384 91 70 79 . 5 4,730 

Deceaber .. . . . . . . . . . . . .. . . . . ... . .. . . .. .. . . .. 2 ,146 78 65 69 . 2 4,260 

· - - --- --- - - - -- - -- - - -- - - ----- - Calendar year 1940 .. . ... .. ..... ..... ... 19 , 615 668 17 63 . 6 38 ,900 

. -- -- - -- - - -- - - -- - - - - -- ----- - January . .......... . . . .. .. .. ....... ..... ... 1 , 925 69 

·~ 62 . 1 3,820 

February ......... . .. . . ......... ...... . ... 1,721 64 58 61 . 5 ~,·UO 

March . .. .... . ... . ..... . .. . . . .. . . .. ... • ... 1 , 747 60 ·~ 56 . 4 3 , 470 

Apri l. . . ... . . . ......... ····· ······ .. .... 1 , 251 263 19 41 .7 2,480 

May . ... .. .. .. ...... ..... ............. ..... 9,051 1 , 710 22 292 17 , 950 

June . . . . . ......... . ... . ....... ........ . ... 118 , 950 8 , 080 0~0 3,965 235,900 

July . .. . .......... ..... ....... .... ..... .. .. 20 , 626 1 , 060 119 665 40 , 910 

August . . . ...... . .. ...... ... ········ . .. .. .. . 7,890 608 60 255 15 , 650 

September ..... . .. ... .... .. .. ....... . ... 33 ,019 2 , 940 470 1 ,101 65 ,490 

Water year 1940-41 .... .. ... . ..... ....... 203 , 014 8 , 080 19 556 402 , 600 

h Computed from graph based on once -daily starr-gage readings. 
RIO GRANDE BASIN 279 

Pecos River near Girvin, Tex. 

Location .- Water-stage recorder, lat. 31 °05', long . 102°22 ', at bridge on u. s . Highway 67, about half a m1le downstream rrom bridge or Panhandle & Santa re RaHway, 2 .l 

m1les east or Girvin , Pecos County , and about 6i mnes downstream rrom comanche Creek . Datum or gage Is 2,269.7 teet above mean sea level, unadjusted . 

Drainage area .- 29,560 square m1les (contributing area) . 

Records available .- August 1939 to September 1941. 

Extremes.- Maximum discharge during year, 6, 870 second-teet June 16 (gage height, 17.36 

feet}; minimum dally , 39 second-teet (regulated) Apr. 21. 

1939-41: Maximum discharge , that or June 16, 1941 ; minimum dally, 30 second-teet 

(regulated) July 31, 1940 . 

nls~!gog/fo~=~t~~~!~e~~~ reached a stage or 17 reet, according to lntonnatlon furRemarks.- Records good . F'low regulated to large extent by reservoirs upstream from Orla . --mny-dlverslons above station tor Irrigation. Some water rrom a drain and two waste- ways returns to river between this station and that below Grandfalls . 

Discharge, in second-feet, water year October 1940 to September 1941 

Da; Oct. Nov . Dec . Jan . Feb . War . Apr . llay June July Aug . Sept . 

1 62 82 91 87 8~ 78 77 62 ~20 1 , 350 704 540 

2 65 85 89 as 8~ 76 76 106 1,650 1,390 725 540 

3 57 as 89 88 84 76 77 150 1 , 940 1 , 280 704 641 

4 55 95 as 87 84 75 78 160 2,120 1 , 220 662 879 

5 54 98 as 87 84 74 76 134 2 , 340 1 , 110 600 1 , 080 

6 52 9S 87 86 84 75 76 105 2 ,600 911 540 1 ,150 

7 48 105 87 85 84 75 77 8~ 2 , 760 92~ 450 1 , 080 

8 45 120 as 85 86 74 151 79 3 , 030 901 uo 1 , 040 

9 44 125 as 84 87 74 249 8~ 3 ,450 945 400 1 , 240 

10 42 118 88 8~ 86 74 1~5 77 4, 690 901 ~50 1 , 420 

11 52 110 as 8~ 84 74 75 106 6 , 120 791 ~40 1 , :560 

12 69 106 87 85 8~ 74 61 144 6 , 300 769 350 1,240 

13 77 104 as 89 8~ 75 54 1~7 6 ,120 662 ~10 1 , 150 

14 ~12 10~ 91 86 82 74 52 142 5 , 770 620 270 1,130 

15 142 10~ 95 8~ 80 74 ~ 169 6 ,300 600 2~6 1 , 180 

16 ~20 10~ 9~ 8~ 79 75 50 185 6,680 5tlt> 218 1 , 080 

17 ·~ 101 92 82 79 76 46 198 6 , 680 460 188 1 , 110 

18 148 99 89 80 77 77 42 205 6 , :500 400 164 945 

19 89 98 as 80 79 79 41 219 5 , 940 ~60 155 901 

20 67 98 88 8~ 79 77 41 226 5 , 600 ~10 144 879 

21 60 95 as 84 79 76 ~9 ~20· 4,440 ~00 168 901 

22 54 95 88 80 79 77 40 ~ 2 , 680 508 168 968 

23 51 95 88 75 79 78 40 261 2 , 090 913 1~ 1 , 180 

24 49 94 87 74 78 79 41 254 1 , 7 40 879 159 1,290 

25 45 93 87 74 79 299 42 261 1,640 901 169 1 , 340 

26 .. 92 86 75 77 104 72 293 1 , 420 991 250 1 , 460 

27 43 91 84 77 77 79 109 7~ 1 , 240 1 , 060 400 1 , 620 

28 ~ 91 85 78 77 80 82 861 1 , 240 1,010 620 1,750 

29 69 91 as 78 - 79 66 910 1 , 340 758 600 1,aso 

30 67 91 85 79 - 78 58 988 1 , 240 704 620 2 , 080 

31 76 - 87 84 - 78 - 1 , 100 - 725 620 -

Second- Maximum NiniiDWI Mean Runoff i n Month root~aya acr~ reet 

October .. .................................. 2,82~ 4~ 42 91.1 5 , 600 

November . ...... ....... .... ... . .. . .... ~, .... 2 , 967 125 82 98 . 9 5, 880 

December .. ................ . . . . .. • . .... .. ... 2 , 732 96 84 88 . 1 5, 420 

------ ------ ------ ------ ----- - Calendar year 1940 .... ..... .. .... ... .... 26 2~~ 40~ ~0 71. . 7 52 , 040 

------- --- -- ------ ----- --- --- January .... . ... ... ............. o •• •••••• ••• 2 , 552 89 74 82 .~ 5,060 

February .. ..... . .. ............ . ..... . . ····· 2 , 275 87 77 81.2 4,510 

March . . , .... , ... ... .•..... . . .... . . .• . ·· ···· 2 , 613 299 74 84 ~ 5, 180 

April .. • ...... . . . •..•............... . . . . . . . 2 , 176 249 ~9 72 . 5 4,320 

May ... . ........ . ....•..... . .. . ....... ... ... 9 , 055 1,100 62 292 17, 960 

J une ... ..... . .. o •••••••••••••• •• •• •• •••••• • 106, 680 6, 680 1 , 240 3 , 556 211 , 600 

J uly ......... . . . .•.. •..•. ..... ....•...... · 25 , 192 1, 390 ~00 813 49 , 970 

11 , &47 725 14~ 376 23, 100 August ................ ... ..... . .. . . . . .... . . 2 , 080 540 1,168 69 , 530 September . . .... . . . .... .... , .. ...•.. . ..... . . 35, 054 

Water year 19-10-4~ ·· ·· ·· ······· ... .. ... . 205,766 6, 680 39 664 406,100 
280 RIO GRANDE BASIN 

Pecos River near She!Oeld , Tex . 

Location .- Water-stage recorder, lat. 30°39 ', long . 101 °45 ', at bridge on u . s . Highway 290, 3i miles southeast or Sheffield, Pecos County, and abOut 4 milos upstream tram Liveoak creek . Datum or gage is 2 , 026 . 3 t eet above mean sea level , datum or 1929 . 

Drainage area.- 31 , 660 square miles (contributing area) . 

Records available.- October 1921 to April 1925 and October 1939 to September 1941 . 

Extremes .- Maximum discharge durin~ year , 5 , 700 second-teet June 20 (gage height, 11.00 f eet) ; minimum, 35 second-teet ct . l, 2 . 1921- 25, 1939-41: Maximum discharge , that of June 20 , 1941; minimum, 15 second- re~t Aug . 15, 1923. 

Maximum stage known , about 23.5 teet, at rormer s1 te and datum three-quarters or a mile upstr eam rrom present site , 1n September 1916, ac co rding to 1ntormat1on rum1shed 

by local residents. 

Remarks.- Records good except those ror periods or doubtful or no gage-lle1gllt -wniCfi are ra1r . !'low regulated to large extent by reservoirs above Or la . record, Many diver- s1ons between Or la and this station for 1rr1gat1on. 

Discharge , in second-teet . water year Qc tober 1940 t o Septe11ber 1941 

Da.'i Oct . Nov. Dec. Jan. Feb . Mar. Apr . llay June July Aug. Sept . 

l 37 eo 10 4 100 107 96 107 115 872 1, 530 759 

} a 610 

2 36 84 107 104 104 95 107 1,560 937 1,460 728 

3 40 89 109 107 102 93 104 265 1 , 470 1 , 560 747 

4 65 93 109 104 102 93 100 157 1,360 1 , 460 747 

5 6 2 95 107 107 104 91 98 346 1, 560 1, 360 704 

6 58 98 107 102 10 4 93 100 190 1,930 1 , 220 654 

7 55 111 107 102 102 91 100 154 2,020 1,110 594 

8 53 127 107 102 109 89 98 138 2 ,1 60 1, 000 508 

9 62 140 107 102 109 89 98 1 22 2,300 970 464 

10 48 130 ~ 102 107 87 158 113 2,990 1 , 000 449 

11 51 127 107 102 104 89 215 111 2 , 720 1,040 423 

12 74 120 107 102 102 89 14 5 109 2, 930 872 4 28 

13 76 115 109 109 102 87 109 3 , 520 815 470 

14 92 113 110 104 100 89 98 • . 210 747 419 l,leo 

15 90 111 107 10 4 100 93 211 4 , 630 M8 368 

16 230 111 107 100 100 95 589 4,800 618 336 

17 138 111 109 98 96 96 82 4,980 571 323 

18 Ml 111 107 9 6 96 100 eo 5 , 250 475 297 

19 277 111 107 96 96 96 76 5 , 520 409 273 

20 14 5 111 107 95 98 96 72 5 , 610 363 253 a24 0 

21 109 111 104 93 96 96 71 5 , MO 319 245 

22 93 111 104 95 98 100 71 5 , 070 310 253 778 

23 84 111 10 4 96 98 98 74 4 , 550 423 257 840 

24 84 109 104 96 96 96 76 3,630 710 310 1, 040 

25 90 109 104 93 96 132 76 2 , 560 840 249 1 , 180 

26 74 107 100 91 95 493 98 2 , 090 872 230 1 , 250 

27 69 107 98 209 96 254 404 1 , 810 970 265 1 , 390 

28 69 107 100 204 96 132 206 1 , 560 l,Oeo ) 1 , 500 

29 65 107 98 102 113 1,090 594 1,460 1, 0eo > a 530 1 , 640 

30 68 10 4 98 100 109 157 728 1 , 500 840 1 , 7 40 

31 84 100 111 109 790 704 

Month Second- ltaximum Minimwa lie an Runo ff in root-days acre-tee t 

Oc t ober .. . .. .. .. ....... ... 2 ,909 341 36 93 .8 5 ,770 November . . . . . . . . . . . . . . . . ·•· · · · · ··· · 3 , 271 14 0 eo 109 6,490 December . ·········· ··· ······ ····· · 3 , 267 . 11e 98 105 6 , 480 

------- Calendar year 1940 .. ...... .. ...... .. 34 , 044 902 34 93 .0 67 , 540 

------- January .. ..... . .... .. ··· ···· ·· ··· ···· ···· 3 , 328 209 91 107 6, 600 February . ........•.. . 2, 815 109 95 101 5 , 5eo March .. .. .. ... ~ ... .... .. .... 3 , 579 493 87 115 7 ,100 Ap ril. . . ...... . . .. . 5 , 070 1 , 090 71 169 10 ,060 Ma.y .. .... ·· ····· ···· ·· ········ ···•· 9 ,33 2 1, 560 301 1 1!, 5 10 June . .. ... .. . ...... . . ... . . . .. 91,349 5 , 610 87~ 3 , 045 181,200 

July . . . ..... ... ... .. ......... ... 'Zl , 376 1, 560 3 10 883 54 , 300 

August . . ... ... . . . ... ... 13 , 873 44 8 27 , 520 Sept ember . .. . . . . .. . . . .. ... .... ..... 33 , 288 1 , 110 66 , 030 

Water year 1940- 41 . . · · ··· ··· · · ·· 199,457 5 ,610 36 546 395, 600 

a Doubt!'ul or no gage-height record; discharge computec1 on beals or recorda ror stations near 

Grandfal ls erd 01rvln. 
RIO GRANDE BASIN 281 

Reservoirs on Pecos River 

Alamogordo Rese rvoir.- Mercury gage , lat . 34°36 ' 30' long . 104o23 ' 10' In swt sec 34 T 5 NO , R. 24 £., at Alamogordo Dam on Pecos River, Smiles northeast ot Guadalupe . N 'M6x Datum o r gage Is at mean sea level (Bureau of Reclamati on datum) Dralna ' • · 

f9~io s~fe mldles11 <contrlbutl ng area) . Records available, Janu~y 1939 ~~ ~~~!nnber • mum a Y contents during year, 157 , 000 acre- feet May 23-30 June 1 10 

July 21 , Sept. 22, 23, 30 (elevation, 4 , 275 .0 r eetl ; minimum dally 15 ' 300 acr; reet Mar . 22 (elevation, 4,211.4 feet). Max imum dally contents during period 1939-41 ~~~~ ~~e~Xu~~ d~e<!i!e~ti~~: ~;~:~tre~\. 23 , 30, 1941; minimum dally, u ; 6oo 

Reservoir Is formed by Alamogordo Dam completed and stora e be 1 1938 ~1tE <l57 000 acre- teet between eleva Ions 4, 200 .0 (sill or o~tlet~te~J and ' 4 ~~ao ee top or spillway gates) above mean sea level. Dead storage , 9, 000 acre-teet · Figures gi ven herein represent total contents. Gage read once dally at a a.m. con- ttuents1 hcomdpbutedBur!rom once-dally gage readings . Gage-height record and capacity curVe rn s e y eau or Reclamation . 

Lake r·rcMillan.- s tarr gage, lat. 32°35 '45" , long . 104°20'55", In SEt sec. 2, T. 20 s., R. 26 8 . , at McMillan Dam on Pecos River, 3 mlles southeast of Lakewood, N. Mex . Datum of gage Is 3 , 241.6 fe et above mean sea level (Bureau or Reclamation datum) . Drainage area, 16 ,990 sQuare miles (contribut ing area) . Records available , January 1939 to September 1941. Maximum dally contents during year, 68, 500 acre-teet Sept. 26 (gage he ight, 29 .95 feet); mi nimum dally, 1, 500 acre-feet Oct . 6- 11 , Feb. 12; minimum gage height, 15.2 feet Nov. 11 (arrected by wind) . Maximum dally contents during period 1939-41, that or Sept . 26 , 1941; minimum dally, that o! Oct . 6-11 , 1940, Feb . 12, 1941; min imum gage height, that or Nov . 11, 1940. 

Lake Is formed by Mcl11llan Dam, completed and storage began In 1906 . Capacity, 38 , 500 acre-feet between gage heights 0 .0 (sill or outlet gates) and 26 . 1 teet (crest or spillway 1). No dead storage . Figures given herein represent usable contents. Water Is used ror Irrigation on Carlsbad proJect or Bureau or Reclamation . Contents 

computed rrom once- dally gage read i ngs. Gage- height record and capac! ty curve fur- nished by Bureau or Reclamation . 

Lake Avalon .- Starr gage, lat . 32°29'25", long. 104°15 ' 00' , In swt sec . 12, T. 215 . , R. 26 E., at Avalon Dam on Pecos River, 5 miles north or Carlsbad , N. Mex . Datum or gage Is 3 , 157 .0 teet above mean sea level (Bureau or Reclamation datum) . Drainage area, 18 , 070 square miles (contributing area) . Records available , January 1939 to September 1941. Maximum dally contents during year, 11 , 000 acre- feet May 22 (gage 

height, 25 .0 feet); no storage Oct . 2- 11 , when natural flow was passing through reser- voir. Maximum dally contents durlne; period 1939-41 , that or !1ay 22, 1941 ; no storage 

Sept . 7 , Oc . 2-11, 1940 . Lake Is formed by Avalon D3lll; s orage began In 1906 . Capacity , 6 , 600 acre- feet 

between gage helgllts 0 (sill or outlet gates) and 21.0 feet (crest of spillway 1) . No dead storage . Figures given herein represent usable contents. Wa er Is used !or 

Irrigation on Carlsbad proJect or Bureau or Reclam tlon . Gage read twice daily October to December, once dally January to September. Gage- height record and capacity curve furnished by Bureau or Reclamation . 

Red Blurt Reservoir .- Ashcroft Durogauge (pressure type) and staff gage, lat. 31°54 ' OS", 

long. 103"54 '40", at Red Bluff Dam on Pecos Rl ver, 3 miles upstr eam from Salt (Screwbean) Draw Tex and 11 miles downstream from New Mexico-Texas State line. Datum or gage Is o'. 30 r~ot below mean sea level, datum or 1929 . Drainage area, 20, 720 square miles (contributing area). Records available, February 1937 to Sep t ember 1941. Max) . !- mum contents during year, 352, 000 acre-teet Sept . 27 , 28 (elevation, 2 , 846 .2 teet , mlnl1:1um, 20 , 600 acre-feet Oct. 1, 2 (eleva Ion, 2 , 795.1 feet) . Maxlt1lllll contents dur~ng period 1937-41 , that o r Sept . 27 , 28 , 1941; 1:11n1mum, 28 , 000 acre-teet Sept . 17, 23- , 

1940 (eleva !on, 2 , 794 .8 teet) . 1936 . d 

Reservoir Is rormed by earth-!111 dam, rlp- rap raced; storage began tn ?64 am canpleted early 1n 1937 . Capacity , 307, 000 acre- teet between gage heights 2 , .0 reet (penstock Intake sill) and 2 , 842 .0 teet (top or Talntor gates) . Dead storagre 3 000 acre-feet Figures given here in represent total contents. Water Is used or pbwer developme~t and tor Irrigation from Men one to Grandfalls, Te~ . Starr gag~at service spillway used May 25 to Sept . 30 . Elevation observed July .>l and Sept . subject to error due to drawdown or water su rface throue;h spillway . Elevation r ecord 

and capacity curve rurnlshed by Red Blurt Water Power Control District. 
282 RIO GRANDE BASIN 

!1onthly elevati on (or gage height) and contents, or reservoi r s on Pecos Rive r , water year October 1940 to September 1941 

Alamorgordo Reeervolr t Lake !lc!liUa.n l 

Ctwngo Change 

Ele vation in Elevation in 

Contents contents Contento contents 

Date or gage (aero- during or gage (a cre- du ring height reet) month height teet) month (reet) (acre- (root ) (acrereot) feet) 

Sopt . 30 . . . . ..•.. • ..•.. 15.45 18, 400 15 . 72 1 , 700 

Oct . 31. .• .. • ... ....•. 16.55 19 , 200 • 800 15.7 1,700 0 

Nov. 30 .. . . . ••... . .... 23.15 25,200 •6, 000 16 . 00 2 , 100 + 400 

Doc. 31. . .•... . .. . .... 29.3 31,600 +6 , 400 15.85 1 , 900 -200 ----- --- Cal endar year 1940 •. _:8!, 8_:>0 -4 , 800 - - Jan. 31. ... .. ......... 34.05 37 ' 700 +6,100 15 . 85 1 , 900 0 

Peb . 28 .... . ......... . 36.85 42,000 +·4,300 15.80 1 , 800 -100 

!lor. 31. . ...•... . .. . .. 24.3 28,300 - 15 . 700 24.40 29 , 900 +28, 100 

Apr. 30 . .. .. . . ... . . ... 40 . 4 47 , 800 + 21,500 24.40 29,900 

!ley 31. ..•.. . . .. . .... 74 . 75 155,700 +107,900 25.55 35,800 +5, 700 

June 30 .....•.... ..... 7:3 . 5 149,200 -8,500 24.90 32 , 300 - 3 , 300 

July 31 ......... . ... .. 74 . 8 156, 000 +6,800 25.00 32,000 •SOO Aug. 31. . ........ . .. .. ?4 .4 153 , 900 -2, 100 23 . 85 'Z7,300 - 5,500 

Sept.30., . ..... . . . .. . . 75.0 15 7 , 000 ~3 100 28.80 42 , 700 +15,400 

Wa te r year 1940- H · · +138, 600 +41,000 

Date Lake va~ on l Red Bluff Reaervo1rt t 

Sept.30 . . . .. ......... . 9 . 8 180 2 , 795 . 0 28, 400 

Oct. 31. ... .... . : • . •. . 19.6 5",240 +5 , 060 2 , 801.6 43 , 000 +14 , 600 

No v . 30 • . • .• •. . .. . ..•• 20.2 5,810 +570 2,003.9 49.700 +6 , 700 

Doc. 31. . . . .... . ....•. - 20.2 _:; .Eo_ 0 f- ~80.!-.! _:;~20~ • 7 ,500 

Calendar year 1940 .. - -- ~.!_eo_ --- -1 , 000 - - -- Jan. 31. . . ... .. ..... . . 19 . 0 4. 700 -1,110 2, 808. 1 66,300 +9,100 

Peb. 28 .. ... . .•.. . .... 19.9 5 , 520 •820 2, 810.4 73 , 100 +6,800 !lor. 3 1. ..••.• . ... .. .. 19.5 5,150 -370 2, 812 . 2 80 , 900 • 7 , eoo 

Apr. 30 • .. . ..•... • .. . . 15 . 9 2,280 -2 , 870 2,805.0 53,000 -27 , 900 

!ley 31. ...... • . .•• . • • 20 . 6 6 , 200 +3,920 2, 844 .o 330 , 000 +2'17 , 000 Juno 30 . . •. . ... . .•..•. 20.4 8,000 -200 

f~~:~ 319, 000 -11 , 000 July 31. .. . .•..•...... 20.3 5 , 900 -100 316, 000 -3,000 Aug . 31. . . . . . . ........ 20.2 5 , 810 -90 2 , 842 . 7 317,000 +1 , 000 

Sept . 30 . ... . .. . ....... 19.15 4. , 840 - 970 2, 843.7 32'7 , 000 +10 , 000 

Water yea r 1940-41.. +4:,660 +298, 600 

t Elevations are at 8 a.m. Add 4 , 200 teet to obta1n elevations above mean aea level. l Gage· hei ghts October to December are means or 6 a.m . and 6 p . m. read1nga; gage he i ghts January to September are 6 a +!n. readings. tt Elevation at 9 a . m. except as noted . il Blevat1on at 6 a. m. 
RIO GRANDE BASIN 

Galll nas River near Montezuma, N. Mex . 

Locati on .- Wate r-stage reco rde r and .concre te control , l at. 35°39 ' , l ong . 105°19 ', In Las vegas Grant , 2 m1les west or Montezuma, a nd 6 miles nor thwest or Las Vegas, San M!guel County . 

Drainage area.- 84 s quare miles . 

Records availabl e .- October 1930 to Septembe r 1941 in r eports or Geologi cal Survey . March 

1915 to Decembe r 1931 (1915-1925 , no winter r ecords) in reports or State engineer. 

Ave rage d ischarge.- 15 yea rs (1925-41), 21. 4 second-teet. 

Extremes.- f'lal<lmum discharge during year, 3,310 s econd- r ee t Sept. 23 (gage he ight, 7 .78 t eet) , !rom rati ng cur ve extended above 350 second-t eet by l ogarlthml c plotting ; mini- mum daily 2 .9 se cond-t eet Nov. 12 . 1930-4i: Maximum dis cha rge, t ha t or Sept . 23 , 1941; minimum da lly, 0 .8 second-toot Aug . 15-18 , 21, 25 , 25, 30 , 1934, Jan. 20 , 1938. 

Rema r ks .- Records ra !r except those ror pe riods or I ce street, whi ch a r e poor . Diversions ---aDOVe s tetl on t or Irri ga tion . 

Discha rge , in second-feet, wa t er year Oc t ober 1940 to September 19 41 

Da;o Oc t . Nov . De c . Jan . Feb . War. Apr . llay June July Aug . Sept . 

1 6 .5 5. 2 8 . 0 11 5 . 2 11 155 400 228 40 96 ~ 

2 8 . 0 4.8 9 . 0 10 4. 5 1J 1~ d520 202 40 96 29 

3 8 .0 4 . 8 8.5 b8 5 . 2 13 109 d 480 198 35 68 27 

4 8 . 0 4 .5 10 b6 5 . 2 13 1CO d 430 190 36 60 24 

5 8.5 4 . 5 11 b8 5 . 2 14 107 390 202 36 48 22 

6 8.0 4 . 5 9 . 8 •b8 5 . 8 13 109 397 180 35 40 2 1 

7 7 . 6 4 . 2 •e.o b7 6 . 7 12 93 429 162 32 37 19 

8 6 . 2 4 . 2 8 . 0 b7 5. 8 11 86 41 1 151 29 55 17 

9 5. 8 4. 5 8 . 5 b8 5 . 2 15 8 2 d 410 141 29 73 17 

10 8 . 0 4 . 2 8.o b 7 6 . 2 15 84 d 400 125 29 63 17 

11 9 .8 3. 2 8 . 0 b7 5.8 16 81 d 420 113 29 5 4 15 

12 9. 4 2.9 8 . 5 8 . 0 7 . 2 16 9 4 d410 100 29 102 15 

13 9 . 0 3 . 2 7 . 2 7.6 6 . 2 15 121 d 460 89 76 81 15 

14 8 . 5 3.2 b6.5 7.6 7.2 17 113 d4SO 91 57 70 15 

15 8.0 3 . 9 b6. 0 7 . 2 7 .6 17 113 40 4 91 46 72 15 

16 7.6 3 . 9 b5 . 5 b6 8 . 0 16 115 372 89 38 82 14 

17 6. 7 4.2 b8 b6 8.5 20 115 308 91 44 140 13 

18 6 . 2 3.6 10 b9 8 . 5 23 104 257 86 98 155 16 

19 6. 2 5 . 5 9 . 4 b11 8.5 28 8 4 205 88 76 13 4 17 

20 5 . 8 4 .8 b8 b10 8 . 0 32 70 147 82 55 216 25 

21 5.8 4 . 2 b9 5.8 8 . 5 36 6 4 244 74 50 222 97 

22 5 . 5 4. 8 • blO 6 . 2 9 . 4 36 54 626 76 46 170 236 

23 5 . 8 5.8 b11 b6 11 44 52 408 7 4 37 123 8 78 

24 5.5 6 . 2 12 5 . 8 9 . 8 88 60 617 78 37 91 2J6 

25 5.5 4 . 8 13 6 . 2 11 96 7 J 469 73 44 70 125 

26 5 . 5 7.6 10 5 . 2 10 70 115 341 63 50 55 78 

27 5 .8 6 . 2 b lO 5 . 5 9.8 78 225 3 27 55 143 51 49 

28 6 .2 6 .7 11 • 5 .8 9 . 8 106 251 28 7 50 121 44 82 

29 4.8 9 . 8 11 6.7 - 131 202 309 47 8 2 46 9 61 

30 5.5 9 . 8 11 5 . 8 - 147 192 278 41 61 47 7 20 

31 5.5 - 11 5 . 5 - 151 - 263 - 92 36 -

Month .Second- Maximua Mini mum Mean Runotr in root-days ac re-feet 

October . . . . .. ........... ....... ............ 215.2 9.8 4. 8 6 . 9 4 427 

Noveaber .............. . ..•..•..•........... 149. 7 9. 8 2 . 9 4. 99 297 

Oeceabe r .... , ......................... . .... 284.9 13 5 .5 9 . 19 565 

------ ------ ------ ------ ----- - Cal endar year 19 40 ... ................ ... 4. 5 45. 7 154 1. 3 12 .4 9 , 020 

------- -- --- - - - -- --- - ------ January . . . . . ........ . . . . ... . .. . . . .. . . . . . .. . 223 . 9 11 5 . 2 7.22 444 

February . .. . . . . .......... . ........ , . .... . .. 209 .8 11 4. 5 7 . 49 416 

March . . . . .. .. ............. . .... . . . .... . .. . . 1, 312 151 11 42 .3 2 , 600 

Ap ril .. . .. ... . . . . •..•..... . . . .... .•. .•.. , .. 3,356 251 52 112 6, 660 

May . ........ • .. .... . •. ·• .. . . . ..•. . •.. .. .•.. 11, 769 62& 147 380 23 , 340 

June .. .. . . . ....... ... .. . .. ..... ..... ....... 3 , 330 22~ 41 111 6 , 600 

July .. .. . ......•... . ...•..•. .. .••..•. • ... .. 1 ,652 143 29 53.3 3,280 

August . ... . . . ........ .. ................... 2 ,699 222 36 87.1 5 ,350 

September ......... .. ........... . ..... . .. 3 , 8 48 9 61 13 128 7.630 

Water year 1940-41 ········ ··· ·· ···· ····· 29, 049 .5 961 2 .9 79 . 6 57, 610 

Peak dhobarge .- July 18 (9 p.m.) 1,610 aec.-tt.; Aug . 20 (1 p.m . ) 1 , 440 aec . -tt. J Sept . 23 (5 a.m.) 

3,!HO eec .-ft.J Sept. 29 (10 a.m.) 2 , 050 aeo.-rt . • Winter d1eobarge meaeureJDCnt made on tbla day. b Stage-d1eobarge relation a.ttected by i c e. d Doubtful gage-belgbt record; diecb.arge computed on baala or we a ther recorda and r e c orda t or ata-J tion at Monteauma.. 

498588 0 - 43 - 19 
284 RIO GRANDE BASIN 

Galllnas River at Montezuma, N. Mex . 

Location.- Water-state recorder, lat. 35°39' 15', long. 105°16 '30', In Las vegas Grant, at 

hi ghway bridge, halt a mile downstream rrom MOnt~zuma and 5 miles n o rthwest o r Las 

Vegas, San Miguel County . 

Drainage area . - 87 square miles. 

Records available .- August 1903 to December 1914 (prior to October 1904, gage heights only) 

and october 1930 to September 1941 In reports or Geolog ical Survey. October 1904 to 

December 1931 In reports or State engIneer (pri or to 1930 , published as Galllnas Rl ver 

near Las Vegas) . 

Ave!:!!Se dlscha!l!le .- 34 years (1905-11, 1913-41), 22.3 second-teet. 

Extremes . - Maximum discharge during year, 2,590 second-teet Sept. 23 (gage height, 6 . 23 t eet) , from rating curve extended abo ve 650 second-teet by logarl thml c plotting; minimum dally, 0 . 4 eecond-toot Oct . 26 , Nov. 12-18, 20 . 1930-41: Maximum discharge , that or Sept. 23 , 1941; no now ( result or regulation) 

Oct. 4-7, 1934 . 

Remarks.- Records fair . now regu lated by r ese rvo irs owned by Agua Pura Co. Several 

---arversl ons above station tor I rrlgatlon and munl c l pal supply. 

Discharge. in second-teet. water year October 1940 

0~ Oct. Nov . Dec . Jan . Feb . 

1 5.6 2.6 5.6 9.6 7.~ 

2 5.2 2.6 4.9 8.6 6.0 

3 4.9 2. 4 4.9 6.4 6.0 

"' 4. 6 3.0 5.6 4.9 5. 6 

5 4.9 2.6 6 . 4 6.8 6 . 0 

6 4. 9 12 7.8 8.2 6. 4 

7 4.9 13 6.8 5.2 7 .8 

8 4.9 5 . 2 6.0 6.0 6.8 

9 7.8 6. 4 6.6 6.6 6.0 10 19 3.2 ... 4.9 7 . 3 

11 12 .7 6.8 5.2 6 . 8 

12 8 . 2 • 4 8.2 5.6 8.2 

13 5.2 . 4 6.8 5.2 7.3 

14 6.9 . 4 5.6 4.6 7.8 

15 6.4 . 4 5.2 4.2 '6.2 

16 5 . 6 .4 4 . 9 4.2 8 .2 

17 5 .2 .. 6. 4 4.2 8 . 6 

18 4.6 . 4 6.8 6.8 8.2 

19 4.2 .6 5.2 9.6 7.3 

20 3 . 8 . 4 5.6 8.6 2.6 

21 3.8 1.6 6.4 8.6 3 . 2 

22 3 . 6 2.2 7.8 6.0 4.9 

23 3.6 2.2 8.6 7 . 3 6.4 

24 3 . 8 2.2 11 6.4 6. 4 

25 2.6 2.4 12 7 . 8 6.4 

26 .4 3.8 8.6 6.0 3.8 

27 1.0 6.2 7.8 6.4 2 . 6 

28 8.2 4.2 11 6.8 2.4 

29 4.6 5.6 9 . 1 8 . 2 

30 3.0 6. 4 9.6 7.3 

31 2 . 6 10 7.8 

Month 

October. .. . . .... . ........ . ... . . 

November.. . .........•..........•.. 

December ....... .. ...... . • . .. . .... . ... . ... 

Calendar year 1940 

January ..... . ... ..... . ...... . o ••••••••••••• 

February .. . . . .. ... o •• ••• • •• o ...... .... o ••• o. 

March ........ . . o • • o •• o •• ••••••••••••••• 

April ........ ... .. ..... . ....... . .......... . Way .... .. . ........ 0.. . . . . .•.......... June ..... ... ......... . ... .. .. o • • ••••• o o •••• 

July ..... . .... . • . .•.......•.............•.. August . .... ... .. ........•.•...•.•..•.•. . •.. 

September ......... . 

Water year 1940-41 ............... . 

War . Apr. llay 

3.0 

3.6 

4 . 6 

~.8 

~.8 

5.2 

4 . 6 ~.2 

a5.0 

o . e 

12 

14 

1~ 

16 

15 

14 

17 

19 

25 

~0 

38 

38 

46 

86 

96 

7~ 

73 

93 

109 

128 

132 

Secondroot-days 

166.0 

93.3 

223.4 

3 , 536.9 

203.0 

174 . 5 1,130 . 6 3,014 

12, 215 3 , 117 1, 348 

2 , 317 3 , 454 

27,455.8 

141 31e 113 500 96 470 

83 440 

86 ~75 

91 366 79 ~93 

75 380 68 see 70 364 

69 402 74 406 96 455 9~ 455 95 455 

93 348 93 302 91 282 78 258 68 222 

64 274 

58 642 

58 540 59 588 68 626 

89 435 212 384 268 344 206 344 

191 290 

250 

Ma.ximwa 

19 

13 

12 

110 

9 . 6 8 . 6 

132 

258 

642 

222 

97 

200 

821 

821 

a Ho gago-be1gbt record; dhcb.argo interpolated. 

t o September 1941 

June July Aug . Sept . 

222 

200 

182 

175 

180 

162 

148 

141 

134 

122 

11~ 

99 

89 

88 

85 

81 

79 

78 

77 

73 

70 

68 

7l 

71 

66 

60 

54 

49 

42 

38 

Minimum 

0 . 4 

.4 

4.9 

• 4 

4.2 

2.4 

3 . 0 

58 

222 

38 

22 

32 

12 

. 4 

36 

~9 

31 

27 

32 

30 

27 

24 

22 

23 

22 

22 

54 

43 

50 

35 

38 

68 

79 

47 

39 

40 

32 

31 

~0 

47 

97 

95 

69 

51 

68 

lloan 

5.35 

3.11 

7.21 

9 . 66 

6 . 55 6 . 23 36.5 

100 

394 

104 

43.5 

7 4.7 

115 

75.2 

70 ~0 

eo 28 58 26 51 24 

44 22 

40 20 39 19 

46 18 63 17 58 17 

52 16 82 13 7~ 14 64 13 61 13 

72 12 111 12 128 16 108 17 165 28 

200 87 152 229 101 710 77 272 63 152 

53 101 48 72 41 92 41 821 .. 543 32 

Runorr io acre-feet 

329 

185 

443 

7,020 

403 

346 2.240 

5 , 980 24 , 230 

6,180 

2 , 670 4 , 600 6,850 

54 , 460 
RlO GRANDE BASIN 285 

Rio Ruidoso at Hondo, N. Mex. 

Location.- Water--stage recorder, lat. 33°23', long . 105°17', In NWtswt sec. 4, T. 11 s., R. 1'1 E., a quarter or a mile upstream from confluence with Rio Bonito (which torms Rio Hond~) and halt a mile southwest or Hondo. 

Drainage area.- YJ? square miles (contributing area). 

Records available.- October 19YJ to September 1941 In reports or Geological Survey. August 1930 to December 1931 in reports or State engineer. 

Average discharge.- 11 years, 25 .0 second-teet. 

Extremes .- Maximum discharge during year, 12,400 second-teet Sept. 29 (gage height, 21.13 

teet), trom rating curve extended abo ve 100 second-teet on basis or ve locity-area studies; minimum dally, 1.9 second-teet Oct. 6. 

1930-41: Maximum discharge, that or Sept. 29, 1941; no !low Aug. 15, 16, 1935. 

Remarks .- Records talr Oct. 1 to May 11 , poor thereafter. Many diversions above station 

----rorTrr!gatlon. 

Discharge , in second-teet. water year October 1940 to September 1941 

Day Oct . Nov . Dec . Jan. Feb . Mar. Apr . llay June July Aug . Sept. 

1 4. ~ 4.1 2.4 6.~ 11 18 79 158 a270 56 a200 a90 2 4. 7 ~.4 ~.7 9 . 0 8.3 18 72 13~ a2:50 50 a260 a eo 3 5.1 4 . 7 5 . 8 9 . 0 7.2 25 65 124 a200 42 202 a60 4 4.5 5.1 6.1 7.7 6.6 26 63 191 d80 40 &150 a 50 5 2 . 8 5.5 8.0 7 . 2 5.8 28 57 387 a190 48 allO a45 

6 1.9 4. 7 8.7 7.5 6.6 29 56 M5 a200 60 a80 a60 

7 2.3 3.5 9.0 8.0 8.3 26 59 327 alSO 70 65 a45 

8 2 .3 4.1 9.0 9.0 9.0 28 56 ~09 a120 41 a62 a42 

9 2. 8 4.9 e. v 7.2 9.0 26 51 309 alOO 28 a60 a70 

10 2 . 8 5.1 9.0 7. 7 9 .8 20 54 306 a90 27 a 58 a35 

11 3. 4 5.5 9.8 8.7 12 21 64 ~27 76 a24 57 a30 

12 5.1 5.5 10 10 15 22 60 a:54.7 69 28 59 a29 

13 8.3 6.1 11 11 H 26 72 a:5:50 63 22 a250 a28 

14 8 .7 5.8 11 12 H 30 85 a290 65 a90 a200 27 

15 8.3 4.P 11 12 15 31 77 a250 68 a60 a250 26 

16 7 .7 4. 7 11 11 15 ~0 71 a220 63 a eo a220 23 

17 8 .7 4.5 10 11 15 34 74 a200 54 allO 

:~;~ 20 

18 8 . 7 5 .5 9.8 11 16 36 84 &170 52 a90 19 

19 7.7 6.1 10 11 16 ~3 86 al60 53 .eo al:50 25 

20 e.o 5.3 v.e 12 18 32 88 alSO 47 a90 allO 85 

21 e.o 3.7 10 12 17 42 81 &170 60 alSO al20 59~ 

22 5.5 6.3 P.8 12 16 57 70 a190 63 &250 a.l40 2,650 

23 4.5 6.6 7. 7 11 18 50 52 .. 240 42 a230 70 1, 4:50 

24 4.5 6.6 7.5 10 23 51 5 4 a280 50 al90 82 880 

25 3.9 6.6 6.3 11 23 58 52 &450 72 alSO 67 578 

26 5.3 6 . 6 7 . 7 8.3 23 60 83 a420 89 al40 1~~ 425 

27 5.5 6.3 8.7 9.0 21 61 88 a400 82 al~O 365 

28 4.9 4.9 7.5 10 19 60 107 a:570 77 al20 .~: 921 

29 4. 7 4 . 1 6 . 1 11 6 4 11& a450 ! 72 al20 &4 , 000 

30 •. 7 2 4.~ 11 70 110 al,300 I 62 al40 ·~g &:5, 000 

31 4.3 6.1 11 79 a2,000 a170 

Month Second- Ma.xi•u• Mini•u. Mean Runort in root-daya acre-feet 

October ......•.... ..... ...... . . . . . . . . . . . . . . 163.9 8.7 l.P 5 . 29 :1"25 

November .... . .... 153.9 6 . 6 3.2 5 . 13 305 

Dece11ber ........ . . .. ... . .. . .. . ..... 255 . 5 11 2. 4 8.24 507 

Calendar year 1940 .. . .............. . ... 3, 754.1 132 .5 10 . 3 7 , 460 

January ....... . .... . . . ... . ....... . . .. .. 304.6 12 ~ 9.83 604 

February ........... . .. . . . .... . . . ...... . .. . . 391.6 23 5.8 H.O 777 

Mo rch ...........•.. , .....•..........•...... 1 , 191 79 18 38 .4 2,360 

Ap ril. .......•..•.... ···· ··· ········· ······ 2,185 115 51 72.8 4.330 

May . ....... ............................. 11 , 303 2,000 124 365 22,420 

June ............•.......................... 3,009 270 42 100 5 , P70 

July ..........•.••..•.••.•.. • ..•.... . ...... 2 , 926 250 22 94.4 5,800 

August . . . . ............ ..................... 3,816 260 56 12~ 7,570 

Septecbor ........ .......... ... ... ..... .. . 15.731 4,000 lP 524 31,20Cl 

Water year 1940-H . ..... ,, ... . ... .. . . . . . 41,430.5 4,000 1.9 114 82, 170 

csp:~!.1 i~~oe·~;c~~t. 27 (8 p . m.) 1,000 aeo.-rt. ; Sept. 22 (1 a.m. ) 6,720 aec.-rt .: Sept . 29 

a No gage - height record; c11ecba.rge computed. on baa!a or recorda ror Rio Bon ito at Hondo , Rio Hond.o at Diamond. A Ranoh near Roawoll , and weather records . 
286 RIO GRANDE BASIN 

Rio Hondo at Di amond A Ranch, nea r Roswell, N. Mex. 

Location . . Water-stage recorder, lat . 33°20 ', long. 104°50 ', In NEt sec. 20, T. ll s ., R. 21 !:. . , at Diamond A Ranch headquarters, 8 miles upstream rrom Rocky Arroyo and lB 

miles west or Roswell . 

Dra inage a r ea .- 960 square miles (contri buting area). 

Records available .- May 1939 to Septembe r 1941 In reports or Geologl cal Survey . May 1908 to August 1909 In reports or State engi neer. 

Extremes .- Maximum discharge during yea-r, 26 , 500 sec .-rt. Sept. 22 (gage height, 28.?8 reet), rrom rating curve extended above 5,000 second- t eet on basis or slope-area dete rminati on at gage hei ght 28 . ?8 teet . No tlow a t times. 

1939-41 : Maximum discharge , that or Sept . 22, 1941 ; no tlow at times. 

Remarks .- Records talr except those tor pe riods or fragmentary or no gage- height r ecord 

---anathose above 5, 000 s ec .-rt., which are poor. Many d i versions above station t or I rrlgatlon. 

Discharge , in second-teet. water year October 1940 t o September 1941 

O&y Oct . Nov . Dec . J&O . Feb . War . Apr . llay June July Aug . Sept . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

0 

0 

. 7 

2.0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

.7 

1.3 

Month 

.5 

0 

0 

0 

1.6 

.7 

. 6 

.5 

1.5 

2 . 0 

.. 2.5 

2.2 

1.8 

1.7 

1.3 

. 5 0 

0 

.7 

.9 

.. 1.7 

2.2 

2.5 

3.7 

3.6 

3.4 

3 . 6 2 .5 

3 . 9 4.1 

1.8 

4 . 1 3.4 

3. 9 3.7 

4.9 

0 

October . . .. .... . ... . .... . ... .. . . .... . .. . Noveaber ........... . ..............•.. ._ . . . . . 

Deceaber. . .. . . . ......... . ...... . .. . 

Calendar year 194:0 ... .. .....•... . ....... 

January . .. .. . ....... · ..... ····· • · · • · · · · · · · · February . ....... . •.. . ................ . March ......... , ..•..........•..•. 

April .............. . ...•..•........ May . . .. .. .....•..... . ....•.....•.. . .. 

June . ... . ................. . ....•...... July . ... . .....•..•.......•..•.. . . .. .•... . .. August . . . ..... . .. . .. . ....•. .. . ........ . . . .. 

!9aptembe r . .... 

Water year 1940-41 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

.l 

0 

12 

17 

28 

32 

126 

65 

54 

52 

57 

48 

37 

38 

36 

35 

30 

37 

39 

40 

64 

66 

53 

45 

49 

53 

81 

79 

59 

55 

H 

42 

214 

452 

730 

404 

388 

609 

538 470 

444 

396 

380 

396 

470 

... 

396 

3be 

309 

272 

234 

204 185 

245 

292 

546 

553 

636 

50 

55 

49 

42 

46 

56 

2,170 287 

194 

177 

565 

453 

40 4 1,900 3,800 411 

Secondtoot~ays 

0 

2 .7 

6 .0 

1,057.4 

69.0 

0 513.1 

4,~28 

17,882 

3,527 

4,021 

5, 443 

39.624 

76, 315.8 

0 

2.0 

1.6 

262 

4 .Q 

0 126 2,170 

3,800 

313 

3Q7 

870 12,900 

12 ,900 

279 

242 

218 

208 

313 

241 

a207 

u73 

a140 

105 

88 

80 

71 

60 

61 

72 

52 

45 

4l 

40 

39 

74 

39 

47 

175 

107 

89 

80 

70 

69 

IUniau.. 

0 

0 

0 

0 

0 

0 

0 

30 

185 

39 

24 

57 

10 

0 

58 

40 

32 

24 

24 

28 

92 

72 

44 

32 

25 

114 

64 

131 

71 

106 146 

107 

88 

101 

199 

326 

324 

242 

197 

155 

397 

285 

133 

156 

208 

...... 0 

. 09 .lQ 

2.89 

2.23 

0 

16.6 

144 

577 

118 130 

176 1, ~17 

206 

242 

279 

242 

181 

137 

106 

83 

69 

7 4 

5 4 

8 1 126 

870 

269 

309 

340 

249 201 

162 125 

132 

165 

156 

99 

91 

7 4 

57 

238 

69 

85 

67 

146 

89 

72 

&6 

49 

75 

53 

40 

85 

46 

37 

35 

32 

32 

29 

23 

20 

13 

10 

225 

1 ,320 12,900 

2 ,510 n,300 

n ,oso 

f690 

f757 

2 , 010 10 ,100 5 ,710 

Runotr in acre-teet 

0 

5.4 

12 

2,100 

137 0 1,020 

8 ,580 35,470 

7,000 

7,980 

10 ,800 78,390 

149,400 

<e P:~~ ii~6Se~;e~~~t. 7 :~~o 2~·(5 ) .:!: ~s:;~c, ~;~: _;::, ~e~~ ~ 3g9 P( ~;~o ~:!~? ;;~ 7~t ;!c ~~t~0 

a No gage-height record; discharge interpolated. t Fragmentary gage-be1gbt record; discharge computed from partly eet1mated gage heights. 
RlO GRANDE BASIN 287 

Rl o Bon I to at Hondo , N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 33°23', long. lG5°16 ', In 

NE:tNWf sec. 4, T. 11 S., R. 17 E., at Hondo , halt a mile upstream from confluence with 

Rio Ruidoso. 

Drainage area.- 306 square miles (contributing area). 

Records available.- October 1930 to September 1941 In reports ot Geological Survey. August 1930 to December 1931 In reports ot State engineer. 

Average discharge.- 11 years, 11.9 second-teet. 

Extremes .- Maximum discharge during year, 11,000 second-teet Sept. 28 or 29 (gage height, 20.92 teet), from rating curve extended above 220 second-teet on basis ot slope-area determination at gage height 19.0 teet; no now at times. 

1930-41: Maximum discharge, that ot Sept. 28-29, 1941; no now at times. 

Remarks.- Records poor. Many diversions a bove station tor Irrigation. 

Discharge , in second-teet . water year October 19.a to September 1941. 

Day Oct. Nov . Dec . Jan . Feb . Ma r . Apr . Juce J uly Aug. Sept . 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

0.7 

.5 

.2 

. 2 

.2 

.3 

.a 

.6 

• 4 

·' 

. 4 

1.0 

.9 

1.0 

1.1 

.9 

.a 

.a 

.a 

.9 

.a 

.9 

1.0 

. 9 

.a 

0 

0 

0 

0 

0 

.6 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

.1 

0 

0 

0 

0 

0 

0 

Month 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

. 1 

.5 

.s 

.3 

.2 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

.s 

.s 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

October ......• . . , ... . .... , ... . ....... . .... . Nove•ber ................. . ........ .. ... . .. . Deoeaber ..................... . •... .. . . .. 

0 0.2 o a.s 0 al.Q 

0 al.S 

0 a.l.S 

0 1.7 0 2 . 9 0 a3.Q 

.1 3 . 3 

0 •4-5 

0 &5.7 

0 a?.O o a . s 

0 11 0 all 

0 al2 0 12 0 alS 0 alB 

0 20 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

a25 

a30 

&33 

a35 

a36 

60 

80 

aSS 

a90 

alOO 

Secondroot-days 

17.9 . 1 1 .6 

136 68 235 6 4 &200 62 

al90 67 

a200 66 

&.270 53 &250 48 

a240 H a220 39 

a240 31 

274 24 

205 25 la4 20 

159 al7 134 14 

131 4.1 119 2 .2 119 2 . 4 117 7 .o 112 4.9 

131 3 .7 124 4J.4 173 17 

226 34 193 76 

la4 24 159 20 146 la 134 14 

122 13 

101 

1.1 

. 1 

.s 

Miniau. 

0 

0 

0 

11 

10 

7 .a 

7.4 

7.8 

7 .4 

26 

14 

10 

a.a 

6 .6 

25 

15 

96 

41 

20 

12 

11 

11 

40 

37 ' 24 

31 

36 

26 

24 

37 

39 

38 

42 

42 

lloan 

o.5a 

.cos 

.o5 

Calendar year 1940 ....... .. . ..... ... .... 834-8 135 o 2-28 

41 

32 

29 

25 

20 

la 

18 

17 

17 

22 

22 

16 

28 

62 

76 

68 

60 

52 

41 

34 

35 

24 

17 

15 

13 

1 3 

12 

15 

25 

12 

11 

10 

a.a 

a.s 

a .s 

a .s 

7.4 

6.6 

6 . 2 

647 

32 1,350 36 3 , 560 35 a960 26 a385 24 &40 

22 16 44 1.8 16 1, 200 

~~ t.i:~ 49 

Rucort in acre-teet 

36 .2 

3 .2 

1,660 

January .... ... . .......... . ...... . ..... . .6 . 3 0 ·02 1.2 February . .......... .. ... ~ . . . . . . . . • . . . . . . . . . 0 0 0 0 0 March ... . ........ . .......... ..... .. . . ....... .1 .1 0 .oo:s .2 April. ... ..... . .............. . ....... ... . . . 703.9 100 .2 2:5 . 5 1,400 May .. ........ . ... . .. ....... . .... .. . ... . . 5,428 27 4 101 175 10 , 770 Juno. .............. . ...... . .......... . . . . . . 696 .3 76 2.2 29.9 1 , 780 July ......... . . . ........ . .. .. ... . .. .... ... . 763.8 96 6.6 24.6 1,510 Aug:ua t. .... . . . . . .. . ............. . . . .. . .. ... 1,014 76 14 32.7 2 ,010 

Septocbor ... .. . . . . . .. ... .... . . . ..•..• ... .. . f---12_:,_7_1_5_. '+-s-''-5_6_o _ t----l-· a-t--42-'--+-25..:':_2_2_o_ 

Wate r year 19.0-4.1. . . .... .. . . ........... 21, 542 :5 , 560 0 59 .0 42 ,7:50 

Poa.lc discharge. - Sopt. 20 (2 p.m . ) 3 , 0:50 eec.-rt.J Sept. 21 ( 1 a.m.) 6,090 eeo. - rt.; Sept. 2 1 (5 p.m.) 1,0$0 seo .-fi. J Sept. 28 or 29 , 11 , 000 seo. - tt. a No gage-height reoordJ d.i~charge computed on basi:~ or weathe r records and records for Rio Ruidoso at Hondo a.nd Rio Hondo at otamond A ltanch, near Roswell . d Doubtt\11 s;age- helght rocord J discharge computed on bo.a1a or weather r ecorda , record for Rio Ruidoso s t Hondo and recor-<1 tor R1o Hondo at Diamond A Ranch near Roswe ll. 
288 RIO GRANDE: BASIN 

Rio Felix at old highway bridge , near Hagerman, N. Mex. 

Location.- water-stage recorder, lat. 33°07'30", long. 104°20'40", In SE:t sec. 4, T. 14 S., R. 26 E: ., on downStream side or bridge, H mlles northwes t or Hagerman and 2t miles 

upstream rrom mouth. 

Drainage area.- 932 square miles (contributing area). 

Records available .- April 1939 to Septembe r 1941. Ma.rch 1932 to April 1939 at sl te 1 mlls downstream, publ ished as Rio Felix near Hagerman; records !or pe riods or low now 

not equl valent . 

Extremes.- Ma.xlmum discha rge during year, 20 ,000 second-t eet Sept. 22 (gage height, 23.0 tee t), !rom rating curve extended above 5,100 second-teet by logarithmi c plotting; 

minimum dally, 0 .7 second- root Dec . 6, Jan. 20-22. 1939-41: Ma.xlmum discharge , that or Sept. 22, 1941; minimum dally, 0. 4 second- root 

Sept . 21 , 1940 . Flood or 11a.y 29 , 1937, reached a stage or 19.5 reet (discharge previously published 

In Water-Supply Papers 647, 878, and 898 Is probably much too high). Revisions.- The maximum discharge tor the water year 1940 has been revised t o 10 , 300 second t eet Hay 22 , 1940 (gage height, 16 .45 reet ), supersed i ng !lgure published In 

Water-Supply Paper 898. 

Remarks.- Records ral r. Several dl ve rsions above station tor I rrlgatl on. 

Discharge . in second-teet, water year vctober 1940 to Septe•ber 1941 

Da~ 

I 6 

7 

e 

9 

10 

11 

12 

13 

14 

15 

16 

17 

1e 

19 

20 

21 

22 

2~ 

24 

25 

26 

27 

2e 

29 

~ 

31 i 

Oct . 

1.1 I l..6 

~ 

1 .1 

1.1 

1.1 

1.1 

1 . 1 1.1 

1. 6 

l. ~ 

l.~ 

~ 

l.~ 

1.1 

~ 

1 . 1 

1.1 

l .e 2.7 

Le 

l .e 1.6 

l.~ 

1.3 

l .e 1 . 6 l .e l .e 2.7 

~.3 

Nov . 

~.o 

2 .4 

2 .1 

Le 

Le 

2.1 

2 . 1 

Le 1.e 1.6 

1.6 

1.6 

1.3 

1 . 3 l.~ 

l.~ 

l.e 

1.1 

1 . 1 

l.~ 

~.~ 

1.e 

1.6 

1.6 

l.~ 

1.1 

1.1 

1.1 

1.1 

1.1 

Dec . 

1.1 

1.1 

. 9 

. 9 

.9 

.7 

2 . 5 24 

26 

17 

~ 

2 . 1 

Le 

1.6 

1 . 6 

1. 6 1.6 

1.3 

1.~ 

1 . 1 

1~ 

25 

12 

Month 

. 9 

. 9 

.9 

. 9 

. 9 

. 9 

. 9 

. 9 

Jan . 

1.e 

.~ 

1.~ 

1.1 

l.A 

1 . 1 

1.~ 

1.1 

. 9 

. 9 

.9 

.9 

.9 

. 9 

.9 

. 9 

1.3 

1.3 

1.1 

. 7 

.7 

. 7 

1.~ 

1.1 

1.1 

1.~ 

1.1 

1 . 1 1 . 1 1.1 

1.1 

Feb . 

1 . 3 1.~ 

1.~ 

1.~ 

1.1 

1.1 

1.1 

1.1 

. 9 1.1 

.9 

1.1 

1.1 

1.1 

1 . 1 

1.~ 

1.~ 

1.3 

1.~ 

1.~ 

1.3 

~ 

~ 

1.~ 

1.3 

1 . 1 1.1 

1 . 1 

October .. . .. ..... .. . .....•. . • ....... 

November . . . . . . ..... .. ....•..•. .. ....•..... . 

Deceaber ... . . . .......... . .. . .... . .. . .... . 

Calendar year 194.0 ... . . .. . .. ... ..•...... 

January ... . .........................•. . ... . 

February . .... . . . .. .. .. .. ......... . ... . 

March ......................... . ... •... .. . .. April .. ..... . ...... .. .... . .. ... . .. . llay . ...... . . . .... . ................ . June . ... . ... . .• . . . ... ......... . .....•.. . ... 

Jul y ..... ... . ...... . ...... . .............. . August ...... . ..... .. .....•..... . ... . • .. .... 

Septeaber ... . ... . ......................... . 

Water yearl940-41 

War. 

1.1 

.9 

. 9 

. 9 

.9 

1.1 

1.1 

1.1 

1 . 1 1.1 

1.1 

1 .1 

1 .1 

1.1 

1.1 

1.~ 

7 .4 

25 

9 .6 l.e 

2 . 1 2.7 

l.e 

1.6 

2.4 

l.e 

1.6 

1 . 6 

1.~ 

1.~ 

.~ 

Secondtoot.-da.ys 

47.3 

49 .3 149. 6 

34.1 

~3.2 

eo. ~ 

9e6.6 :S6~.5 

674 . 2 

e69. 1 2,247.2 

21,162.6 

~1,695.9 

Apr . 

l.e 

2 .1 

2 . 1 2 .4 

2 .4 

2. 4 2 . 7 

2 . 7 

.~ 

l.e 

2 .1 

2.1 

2.1 

3.0 

2 .7 

~.o 

2 .7 

2.7 

~.o 

2 . 7 

4.0 

686 

92 

le 

120 

26 

10 

26 

~9 

40 

~~ 

28 

23 

e.o 

7.5 

15 

51 

29 

25 

22 

20 

19 

22 

1e 

24 

e5 

38 

25 

16 

10 

26 

3.3 

~.~ 

26 

2,020 

1.e 

1.3 

25 

666 2 , 660 

52 

115 1 , 520 

7,760 

7,'160 

June 

26 

26 

28 

45 

52 

49 

34 

49 

49 

45 

33 

21 

2~ 

25 

21 

14 

e.4 

9 .0 

9 .0 

9 .6 

10 

9.6 

10 

9.6 

9 . 6 

9.0 

12 

ll 

9.0 e.4 

IUni •ua 

1.1 

1.1 

.7 

.4 

. 7 

.9 

.9 

l.e 

7.5 

e.4 

~.2 

6.1 

6.0 

.7 

July 

7.2 

7 . 2 

7 .2 

7.2 

6 . 6 

9.0 

45 

5 . 2 4.4 

3 . 6 

3.2 

3.2 

3.6 

115 

64 

44 

e .s 19 

22 

11 

e . o 17 

43 

52 

50 

47 

52 

51 

51 

52 

60 

49 

47 

20 

16 

e.o 

7.0 

6.5 

6 . 5 6.1 

&.5 

6.1 6 . 5 

1,520 

1~7 

166 

~5 

7.6 

10 

9 . 1 e .s 

9 . 6 

10 

8.6 

13 

24 

7.6 

7.2 

6 .7 

1 6 

44 

22 

Sapt . 

31 

~5 

~5 

~2 

15 

7 . 6 6.0 

12 

26 

38 

47 

61 

60 

57 

49 

42 

~6 

~5 

7 

74 

4,1110 

7,760 

1,920 

149 

72 

42 

35 

62 4,630 

e47 

lie an Runorr io acre-teet 

~ 

1 .64 

4. 6~ 

9 . 05 

1.10 

1.19 

2 . 59 ~2.e 

173 

22 . 5 

28 . 0 72.5 

705 

e6.e 

94 

9e 

297 

6 , 560 

66 

66 

159 1,950 

10,640 

1 , :540 

1 , '120 4,460 

41,980 

62 , 8'10 

Peak 41acharge.- "ay 2~ (~p m.} 9 ,630 aec.-rt.; Sept . 21 {~ •·•·> 10,500 • o .-ft.; Sept. 21 (11 a.m .. ) 7,720 sec .-ft.; Se pt . 22 (11:30 a .m.) 20, 000 sec.-ft. ; Sept. 29 (4 a.m.) 5 ,580 sec .-ft.; Sept . 29 (5::50 p .m.) 7,670 sec .-ft. 
RIO GRANDE: BASIN 289 

Cott onwood Creek nea r Lake Arthur, N . Max. 

Locati on . - Wa t e r -stage r eco rde r and con crete control, lat. 32°55 ' 00', long . 104°22 ' 00', In SWtSE:t s e c . 15, T. 16 S. , R. 26 E. , lt miles upstream !rom mou t h and 6 miles south 

ot Lak e Arthur." 

Dr a l nage area.- 199 square miles (contribut i ng area). 

Records a va i l a ble. - March 1932 to September 1941. 

Extremes. - Max imum dis c har g e duri ng year, 334 second-teet May 24 ; maximum_ gage height, 

ll . /2 t ee t Sept . 23, attected by b a ckWate r !rom Pecos River; minimum dally discharge , 

0 .1 second-toot Oct. 4, 12. 1932-41 : Maximum d i s charge , 1,100 second-teet June 13 , 1935, trom rating curve ext e nded a bove 15 second -teet by logari thmlc plotting ; maximum gage height , 13.5 teet 

May 30 , 1937 ( present d a tum, !rom tloodmar ke), a trected by backWater !rom Pecos River ; 

no now May 19- 22 , 24 , 1936, July 10, 11 , 1938, July 18, 27 , 28, 1939, Aug . 18, 19, Sept . 14, 1940. 

Remarks .- Reco rds ! a ir except those to r period ot no gage-height r ecord and those a t tected 

----oy-ca c i<Wa te r , which a r e poo r . Diversions above station tor irrigation. 

Discharge. i n s e cond-teet . wa l e r yetLr Oc tobe r 1940 to Septembe \· 1941 

Dal Oc t. Nov . Dec . Jan . Feb . War. Apr. llay June Ju l y Aug . Sept. 

1 1. 5 4.1 3 . 2 4 . 3 5.0 5.4 5 . 5 125 a 59 16 17 21 2 1. 5 4 . 3 3. 3 4.6 5.0 5 . 6 4. 9 177 a 56 l4 12 21 3 1. 1 4 . 4 3. 5 4.9 4 . 9 4 .7 5 . 1 126 56 ll ll 20 4 . 1 4 .6 3 . 6 5 . 1 4.6 4 . 9 s. 4 7l 55 6 . 2 6 .3 19 5 . 2 4 .6 3 . 7 5 . 2 4. 7 s .s 5. 9 .. 53 6 . 5 7. 2 16 

6 1. 6 4 . 9 3 .7 s. 4 4 . 6 5 .3 6.1 36 61 7 . 7 6 .5 19 7 1. 4 5.2 3.6 4 . 5 4 . 7 5.3 5.5 32 eo 6 .5 6 . 2 22 8 1. 5 5 . 4 3 . 6 3 . 6 5. 2 5. 2 5.6 30 42 7.1 6 .9 25 9 1. 6 5. 4 4. 0 3 . 6 4 .9 5.1 5 . 6 29 4l 9 . 7 5 . 9 27 10 1. 6 5 . 3 4 . 2 3 . 9 4 . 9 5 .3 4.2 26 40 6. 1 5 .4 19 

ll . 7 3 . 1 4 .2 4. 2 5.3 5. 4 3. 1 29 40 e. e 5. 2 16 12 . 1 . 6 4.1 4 . 4 5 . 6 4 . 2 1. 2 66 40 e.o 5. 4 16 13 1.5 1.0 4.1 4. 6 5.2 4.9 5 .9 46 36 8.0 77 16 14 2. 5 1.3 4 . 1 4 .7 5 . 4 5 .2 3 .6 38 57 33 38 15 15 2.5 3. 9 4 . 0 4.6 5.0 5.2 2 . 2 36 37 39 23 15 

16 2.6 3.3 4 .1 4 . 6 5.3 4 .8 2 . 5 32 36 35 17 15 17 2.6 5.1 4 . 3 4.6 5.3 5. 5 2 . 2 33 36 16 15 19 18 2 . 7 5 . 0 4 . 3 4. 6 s . 4 7. 1 1. 5 39 33 10 15 17 19 2.7 5 . 0 4.3 4 .7 5 . 3 5.e 1. 2 33 29 13 l4 16 20 2.6 5.1 4 . 2 5 .1 5. 4 3. 9 1. 5 38 26 H 13 17 

21 2.8 5.2 4. 2 5.1 s . 4 6 .0 3. 0 c l99 24 13 14 c l31 22 2 . 9 5 . 2 4 .0 5 . 2 5 . 4 16 3.4 c265 21 16 15 c233 23 3 . 0 5 . 2 3 . 9 5 . 3 5.7 12 1. 9 c299 20 15 16 c278 

24 3.3 5 . 7 4. 0 5 .4 5.5 6 . 7 1.1 c293 22 16 57 cl94 

25 3. 3 5 . 7 3.6 5.2 6.3 ll 3. 4 c252 20 16 33 ac 130 

26 3 . 4 3 .6 3. 7 4 .9 6 . 1 11 16 c258 15 15 26 c90 

27 3. 4 3.2 4. 1 4 . 9 5. 7 9.5 7.6 cl71 11 15 23 C60 

26 3 .5 3. 1 4. 2 5 . 2 5 . 4 8 . 6 43 81 11 16 21 4l 

29 3 .6 3. 2 4 . 4 5.8 6.7 165 64 12 l4 21 ll 

30 3 . 6 3.2 4 .6 5. 4 s. 4 60 a 52 16 15 22 15 

31 4.0 4 . 6 5.2 4. 9 a61 13 20 

Month Second- Ma.xiiDUII lfini•u.. Mean Runoff in 

root-da.ya acre-feet 

October .. .. ... . .............. ... ......... .. 69. 6 4. 0 0 .1 2 . 25 138 

Nove•ber ........ . . . ...... . . .. ...... ..... .. . 125.3 5 .7 .6 4. 18 249 

Dece•ber ... ............... ... ... ........... 124.0 4.6 3 . 2 4. 00 246 

-- -- - -- Calendar year 1940 .............. .. ...... 1 , 270 .9 59 0 3.47 2 , 520 

---- --- January ..... .. .. . ................. . . .. . .... 149. 2 5.8 3.6 4 . 61 296 

February ........... . . .......... , ....... .... 147 . 6 6 . 3 4.6 5 .27 293 

Ma rch .. . .... .. ... . .. . ... .. ......... . ....... 206 . 1 18 3.9 6 . 65 409 

Apr1l. ........•..... . .. . . . ..•..•..... . .... . 383 ~ 165 1. 1 12 .6 760 

llay . ........ . .•• .•......... . •..• ..•.......• 3 , 097 299 26 99.9 6,140 

~M •...•••..••..•.• . •••• . ..•. . •... .. •.• ... 1.071 eo ll 35 . 7 2,120 

Ju ly .... .......•....•... . .•. . .... . ......... 443.6 39 6. 1 14.3 860 

Aupst ...... . ... . ........... .. ... . •..•..• .. 577 . 0 77 5 .2 18.6 1 ,140 

Septeaber .................................. 1,558 278 ll 51. 9 3,090 

Water year 1940-41 ..................... . 7' 951.9 299 . 1 21 . 6 15,760 

• No ~~~~~o!r~o~~~ ~~ ~~:o~rt: c.omputod on bash or weather rooord• and rooorde fo r atationa 

on Rio near Hage rman. 0 Backwater trom Pecos Ri·nr; d1eobarge c omputed on basi• ot gage-he ight record f or Pecos Rh·or 

near La lee Arthur. 
290 RIO GRANDE BASIN 

Delaware Rl ver near Red Slut r, N. Mex . 

Location .- Water-stage recorder and concrete control , lat. 32°01' , long. 104°03 ', sec. 2:~ , '1'. zt; s., R. 28 E:., at bridge on u. s. Highway 285, 3t m!les upstream r rom mout h 

and 4 m!les south o! Red Blurr, E:ddy County. Datum or gage Is 2 , 900 .7 reet above mean sea leve l , datum or 1929 . 

Drainage are~- 967 square m!les. 

Records available.- October 1937 to September 1941 . Apri l 1912 to Septembe r 1913 at site 3 miles upstream (published as Del aware River near Malaga , N.Mex.). May 1914 to June 1915, at Site 2t m!les downstream (published as Delaware River near Angeles, Tex. ). 

E:xtremes.- Maximum discharge during year, 28 , 700 second-teet May 23 (gage height, 16.25 t eet) , !rom rating curve extended above 1 , 500 second-teet on basis or slope-area determinations at gage hei ghts 8.6 and 18 .0 reet; mi nimum, 0.4 second-root Oct. 6 , 7 . 1912-13, 1914-15, 1937-41: Maximum discharge, 34,600 second-teet June 27 , 1938 

(gage hei ght, 18.00 reet , rrom !loodmarks). by slope-area method; no now at times . 

Remarks .- Records good except those ro r perlods or no gage-height record whtch are !air . ~version above station . 

Discha rge . i n seoo.nd-tee t. wa t e r year Oc t obe r 1940 to September 1G4l. 

Day Oct . Nov . Dec . Jan. F'eb . Ma r . Ap r . May 

1 0. 6 2 . 5 2.5 2 .4 2.s 1 . S 

2 .6 2.5 2 . 4 2 . a 2.9 1.7 3 . 6 2 . 5 2 . 4 2 . 6 2 .4 1. 5 4 .6 2 . 6 2. 4 2 . 5 2 .2 1. 4 5 . 6 2 . 4 2 . 4 2 . 4 2 . 3 1 . 4 

6 . 4 2 . 5 2 . 5 2.4 2.5 1.6 7 . 4 3 . 3 2.5 2 . 4 2 . 4 1.6 8 .5 5.3 2.4 2.3 2.3 1 . 8 9 .s 4 .2 2.4 2 .3 2.3 1.6 10 . 9 2.9 2 . 3 2 . 3 2 . 0 1.3 

11 12 12 100 13 1 , 740 14 132 15 32 

16 

17 

la 

19 

20 

21 

22 

23 

24 

25 

15 

9 . 0 6 . 7 

5. 4 

•·a 

4-3 

3 . a 

3.6 

3 .4 

3 . 3 

2 · 4 2. 3 2. 4 2.5 

2 . 6 

2 . 6 2.6 

2.6 

2 . 6 2.5 

2 . 5 

2 . 6 2 . S 3 . 0 2 . 9 

2 . 3 2 •• 

2-6 

2-6 

2 . 5 

2 . 4 2 . 4 2.4 

2 . 4 

2 . 4 

2.3 

2 . 3 2.3 

2 . 3 2 . 1 

2.3 

1-7 

s . o 

2.s 

2 -1 

1 . a l . a 

l - 9 

2 -0 2.0 

1.9 1.9 

1 . 9 

1.9 1. 9 

1 . 9 1.6 

1 .4 

1.a 

1.7 

l . a 1. a 1 . 9 

1.9 

l . a 

1. 9 2 . 1 3.3 

2 . a 

2 - 4 

2.2 

2 .0 l .a 

1.5 

1.5 

l.a 

1.7 

l . a 

l . a 2 . 9 3.3 

2.5 

2 .1 

2.3 

7 . 2 4 . 3 

2 -6 1 5 

1 -6 t'2ll l.S 379 

1.3 a 43 

1 · 2 17 1 . 3 a.s 

1.2 s.a 1.1 4.2 1.1 3.a 

1.2 3.0 1 . 3 2.a 

1- 4 a2 1.3 637 1.1 a 3a 

l.O a20 1 . 0 a l 6 

.9 alS .a &.17 .7 51 .a 22 

. a ala 

.a 34 

1.3 253 1.a 4 , 340 l. a aa3 1.9 alla 

3.4 a27 

476-0 a20 

t'2a 17 

26 

Z7 

28 

29 

30 

31 

3 .1 

3- 0 2 . 6 

2-6 

2 . a 2 . 5 

2 . 6 

2 -6 2.6 

2-6 

2 . 6 

1 · S 2 .0 

2- 0 2.0 

2 . 2 2.3 

l . a 

2 -0 2 .4 

2.a 

2.6 

2- 4 

2 . 1 

2 -0 1.9 

l.a l.a 

l-7 

ra1 15 

Mont h 

October .... . .... . Novembe r .. . 

Deceaber . . ..... . 

Calendar yea r 1940 . . .. . ........ . 

JanuarY . ... . .. . ..... . . ..•........•... . . .. February .................. ... ... ..•. . . ..... 

March . ..... . ..... . ... • ... .... .. ......... ... April .... . .. , ..•............ ..... 

llay . ..... . ...• . ••.•....•••••.•. . . ..••• • .• .• June . . ... . ..... ....... ............. ....... . . July . . . . ..•..•..•..•.•..•.••.•..•... August ...... ...... ... ............ ..... . September ........ . . . .... . .. , .. . . . 

Water year 1940- 41 .... 

r3a 190 

Second- t oot.-<lays 

2 , 097.4 

82 . 6 72.2 

3 , 234 . 9 

71.1 

60 . 0 78.7 

a51 . 8 7 , 207.9 

928.2 

981.7 

·933.2 

1, 877 .3 

15 , 042- l 

4l. 

Maximum 

1 , 740 5.3 

2.a 

1 , 7 40 

s . o 3 . 3 

lS 

476 4 , 340 

247 

184 377 

557 

4, 3 40 

June 

la 

ll 

a .s 7 -2 13 

132 

64 

17 

9.2 

a.9 

7 .1 

&.4 

5.1 

5.0 

247 

133 

a23 

13 

9 . 2 

12 

2a 

la 

a.2 

a.3 a.l 

9 . 0 

25 

7l a.7 

a . 3 

W1n1mua 

o. 4 

2 . 3 

1.8 

0 

1.7 

1.4 

1 . 3 

. 6 

2 . a s. o 4. 0 3.4 

5 . 3 

• 4 

J uly 

5 . 3 a. l 

13 

a . 2 5 . 4 

4 .a 109 

105 

2a 

10 

7.2 

74 

25 

12 

7 . • 

s.a 

5. 1 

4 . a 4 . 3 4 . 0 

4 . 0 

la4 

90 

2 4 

14 

a.7 

17 

145 

42 

1 7 

14 

Au&. Sept . 

a.o 22 

5 . a 48 4.a a7 

4 -2 15 4. 3 16 

5 . 3 7.a 3 . a 7-0 3. 4 s.o 3 .4 5. 4 3. 4 5-3 

0. 4 5.9 

23a 

3a 

12 

a.9 

5.3 

•. s s.a 

14 

4 . 2 3 . a 

3 . 8 

377 

59 

20 

a .o 5-8 

23 

21 

25 

6 -l 

7.4 

6.7 

5.4 

6 . 3 

a.2 

154 

.. 337 

aa 

3a 

557 

305 

39 

20 

a l 3 

10 

a.5 

8.2 

16 

lie an Runotr in ac re-teet 

a7 . 7 

2.75 

2.33 

a.a4 

2129 

-14 

2.54 

21 . 7 

233 

30 . 9 31.7 

30.1 

62 . 6 

4, 160 

164 

143 

6 , 420 

141. 

119 156 1 , 290 14, :500 

1 , 840 1, 950 1 , 850 3 ,720 

29 , 830 

Peak d1echa.rge. - Oct. 13 (:5:30 a. .c.) 7 , 460 sec. -ft . ; Apr . 27 (3 a. m.) 3 ,120 aec .-rt . ; Hay 1 2 

~~ ~Om~ m~ 6~ :~c~;~: }t~i8)' 23 (3 : 30p.m . ) 28 , 700 aec .-rt. Aug . 13 {12m. ) 1 , 900 see. - rt. ; Sept . 22 

a No gage -height record ; discharge computed trom graph based on engineer ' s note a and weather r ocords . 

r Fragmentary gage-height record ; discharg e computed trom partly estimated gage hei ghts. 
RIO GRAtiDE BASIN 291 

Principal diversi ons !rom Pecos River between Red Bluff Reservoir and Imperial, Tex . 

Records or discharge are collected ror eight canals that divert r.atet· rrom Pecos 

Ri ver between Red Blutr Reservoir and Imperial, Tex . Each or these canals Is eQuipped with a water- stage recorder ror collecting gage- height records. All stations are located w1th1n 2 miles or canal head gate except as noted here in . Several stations were relocated during year; lat1 tude and long! tude herein are ror latest locations. Water 

diverted by these canals Ia used tor 1rr1gat1on or lands on both sides of Pecos River 

In Reeves, Ward , and Pecos Counties. Stations tomerly were published separately (daily d ischarge t!gurea tor the earlier records). Gage- height records collected In coopera- tion with Red Blurr Water Power Control District, Pecos, Tex . 

Reeves County Water Improvement District No . 2 Canal near Mentone , diverts !rom right biirik o! Pecos River, lat. 31"38 1 , long. 103"38 1 • Records available, February 1922 to July 1925 (published as Farmers Independent Canal near Porterville, Tex . ) and 

August 1939 to September 1941. 

Ward Count ~ Water Improvement District flo . 3 Canal near Barstow, diverts rrom lett bank , lat . 31 36 1 , long . 103"31 1 • Records avallable, August 1939 to September 1941. 

Ward County Irr1~t1on District flo . l Canal near Barstow, diverts !rom lert bank, lat . 31"33 1 , long. 03"29 1 • Records available , February 1922 to September 1925, at site 

about hal! a mile upstream (published as Barstow Canal near Barstow, Tex . ) and August 1939 to September 1941. 

Grandfalls-Big Valley Canal near Barstow, rrom lett bank, lat. 31°25' , long. 103"15' . Records avallable , l'!iifch 1922 to rlovember 1925 and September 1939 to September 1941. 

Water diverted through Ward County Water Improvement District No . 2 Canal Irrigates most or lands forme r ly supplied by this canal. 

Pecos Countv Water 1m rovement Dlatrlct 1~ . 2 u ver s rom r g an , a . , ong. gage m es downstream rrom head gates). Records available , March 1922 t o July 1925 at sl te ll miles upstream (published as Imperial l!lgh-line Canal near Grandfalls, Tex.) and August 1939 to September 1941. 

Pecos Count~ Water improvement District No. 2 Canal near Imperial, diverts rrom right bank , la . 31"16 1 , long. 102"46 1 (gage 4 mlles below ou let head gate at Imperial 

Reservoir). Records ava ilable , April 1940 to September 1941. 

Ward County water Improvement Dist rict llo . 2 Canal near Grandfalls, diverts rrom lett 

bank, l at . 31 "22 1 , long. 103°01 1 • Records available, August 1939 to September 1941. 

Pecos Count~ Water pm>rovement District llo. 3 Canal near Imperial, diverts rrom right biirik, la . 31"16 , long. 102"45 1 • Records available, ~larch 1940 to September 1941. 

Several smaller diversions (pumps) divert water between Red Blurt Reservoir and 

Imperial tor Irrigation or lands adjacent to Pecos River, but no records tor thetl were obtained. 

01 ver sions 1n acre- teet, ff8.ter year October 1940 to September 1941 

1'!onth 

Ree ves County 

D1.str1ct 2 Canal near Mentone 

October . . . ....... · 368 Non•bor.... . ... . . 3.6 Decem.ber . .. . ..... · ____ 0 __ 

Calendar year 1940 8 , 020 

Janua.ry ........ .. . 12 Peb~r-r· .... ..... 7.1 

l'ta rOh•• • • • • . . • · · • • 6 . 9 April . .. ...... . ... 2,060 Hay . .. ....... . . . .. a906 .rune ........ . ..... J\ll.y ••••....•..•.• 

A\l8'U.Ot.,. · · .•.. , , . September ..... . ... 

Tho period . .. . .. . :5 , :550 

Peo03 County D1etr1ct 2 l'tonth Canal iuppor diver. near 

GrancU'alle 

October ... . .. . . .. . :'li,790 November .. .. . · . ... 12 December .......... 0 - - - - Calendar year 1940 8,870 

Janua ry ...... . . .. . 0 P'ebruary .... . . . ... 0 narch .. .. . . ... . . . . 0 April .......... . .. 0 !lay .•••.•• .. . • •. . • 3 , 830 June .............. 12,980 = r· ............. 4,600 A.uguet ............ 3 , 320 

September ... . ..... 452 

Tho period. · ····· • 28 , 980 

Ward County Ward County D1etr1ot ~ District l 

Canal near Canal near Ba.rstow Barstow 

Grandt'alls- B1g Va~ley 

Canal near Barstow 

4S6 

48 

50 

1,870 352 4J.9 0 

126 0 

9 , 230 24,340 3 , 280 

- - I--

54 227 0 

46 358 0 

16 141 0 2 , 910 5 ,890 962 

b396 al, 5 40 ~ 

c3 , 760 

4332 

10,570 1 , 310 

Pe cos County Wa.rd County Pecoe County 

District 2 District 2 District 3 

Canal near Cans.1 near Canal neal" 

Imperial• Orandtalls DDperlal 

153 1 , 070 310 

0 0 0 

0 0 0 

24 , 670 

- - - 0 0 0 

40 0 0 

2 , 480 0 0 

2,750 7 , 440 5 , 490 

391 :5,170 1 , 420 6 ,17() 3 , 900 9,050 5 , 930 7 , 910 4, 7 40 

d2 , 660 1 ,.SO 

5 ,810 :57 ,470 21, 2 40 

• Canal flow r epresents released wate r from Imperial Roaert01r (f.ci bJ Pecos Count} Water Improvement D1etr1ct No · 2 upper d.1 vera ion canal ) plua 

water di verted from tho Pecos River by Poeoe County Wat er x.r>ro•....rt 

01atriot No. 2 lower diversion ce.nal. a. No r ecord 'Hay 23-31. c No record Aug. 1. b No record 1'\ay 24-:n. d No record Sept. 2 4-30. 
292 RIO GRANDE BASIN 

Madera Canyon near Toyahvale , Tex. 

Location .- \later-stage recorder, lat. 30°52', long . 103°58 ', In Je!! Davis County, 11 miles upstream !rom Aguja Canyon and 12 mllea southwest o! Toyahvale, Reeves County . 

Drainage area .- 54 square miles. 

Records available.- July 1932 to September 1941. 

Extremes .- Maximum discharge during year , 2,810 second-t eet Sept . 1 (gage he i ght, 5.95 

feet), ! r om rating curve extended above 300 second-teet; no now at times . 1932-41: Maximum gage height, 8.00 t eet Sept. 29, 1932, !rom noodmarkB (discharge not determined}; no now at times . 

Remsr ks .- Records good except those above 300 second-teet and those tor periods or no --gage::helght record, which a r e poor. No diversions. 

Discharge , in second-feet, water year Oo tobe r 1940 t o Septe•ber 1941 

D~ Oct . Nov . Dec . Jan . Feb . Mar. Apr . llay Juno Ju ly Aug . Sept . 

1 0 0 . 4 aO.l 0 0.1 0 0 . 3 16 3.1 29 70 228 

2 0 . 3 a.1 0 . 3 0 .3 57 2 . 4 20 19 50 

3 0 .3 . 1 .1 . 2 0 . 3 57 2 . 1 14 15 12 

4 0 . 3 .1 .1 . 2 0 . 3 26 1.6 9 .4 9 .4 15 

5 0 . 3 .1 .1 . 2 0 .2 19 1.7 6 . 2 6 . 6 7 . 4 

6 0 . 3 .1 . 1 .2 0 . 2 15 1 . 6 3 . 6 6 . 5 3 . 3 

7 0 .. . 1 . 1 . 2 0 . 2 12 1.2 2 . 6 5.9 1.5 

6 0 .1 .1 . 2 0 . 1 9 .4 1.1 33 3 . 6 1 . 1 

9 0 . 1 . 1 .2 0 .1 7 . 6 1.0 76 2 .6 9 . 0 

10 .4 . 1 . 1 . 2 0 .1. 7 •• .9 57 4.9 2. 1 

11 2 .4 . 1 0 . 2 0 . 1 5 . 9 .a 1• 7 .4 3.4 

12 35 . 1 0 . 1 0 .1 4. 9 . 6 7 .4 4 . 9 116 

13 16 . 1 .1 .1 0 . 1 4.3 .7 25 5 . 4 30 

14 10 .1 .1 . 1 0 0 3 . 6 . 6 15 24 72 

15 6 .1 .1 .1 .1 0 0 2 . 9 . 6 6 .4 13 30 

16 5 .4 . 1 . 1 .1 0 0 2 . 3 .4 13 7 . 9 15 

17 4.1 . 1 .1 .1 0 0 1.7 .4 6 . 5 11 46 

16 2 . 9 . 1 . 1 . 1 0 0 2 . 1 3 .4 3 . 6 5 . 9 316 

19 2 . 3 a.3 . 1 0 . 1 0 0 2 .0 6 . 2 2 . 6 4. 1 30'7 

20 1.6 . 1 0 . 1 0 0 1 . 4 4.6 1 . 6 2 . 9 106 

21 1.3 . 1 0 0 0 0 1.2 2 .6 1 .4 4 . 3 62 

22 1.1 . 1 0 0 0 0 1.2 1.4 1.3 3.3 49 

23 1 . 0 0 0 . 1 0 0 1.3 1 . 0 7.6 15 66 

24 .6 0 0 .1 . 2 0 2.0 .6 ll 19 43 

25 .6 0 0 . 1 . 3 0 1 . 6 . 5 6 . 6 17 29 

26 .6 0 0 . 1 . 2 2 . 2 3.6 2 .3 6 .6 12 21 

27 .6 0 0 .1 .2 20 2 .4 2 .6 16 6 .5 14 

26 . 6 0 0 0 . 2 42 1.7 1.6 16 100 11 

29 .s 0 0 .3 40 7 . 1 228 14 106 9 .0 

30 .4 0 0 .3 23 4.1 29 9 .4 35 66 

31 .4 0 0 .3 3.1 33 36 

Month Second- Ma.xia\111 lllini•ua Mean Runoff 1n 

toot--days acr._reet 

October .................... . . . . . . . . . . . . . . . . 96 . 5 35 0 3.11 191 

Novembe r ... .. .. . . ... . . . .. . . . . . . . . . . . . . . . . . . 9 . 2 . 31 16 

Oeceaber ... ... ..... . ................ 2 . 2 .1 0 .en 4.4 

- - ----- Calendar year 1940 ... ... ........ . , 1 , 182 . 8 232 0 3 . 23 ----- - - - _2!~~

January ........ ··········· · ·· 1 .4 . 1 0 .os 2 . 6 February ...... . . . ... . .... . .•......... . . 3 . 6 . 3 0 . 13 7 . 1 March ... .....• ... . . . . •. . •.. ... . . . ... .. 2 . 0 .3 0 . 06 4. 0 April. .... ...... . ...... .. . .... . ... .. .. . 129. 6 42 0 4.32 257 May ........ .... ... . .... .. .......... ... 267 . 4 57 1.2 9 . 27 570 June . ........ . ... . •. ·· ········ ········· 30'7 .4 226 .4 10. 2 610 July ........ .... .. . . .. . .... . ... 476 . 6 76 1.3 15 .3 9 43 August. ... ...... .......... 564 . 7 106 2 . 6 16 . 9 1 , 160 September. .......... . . . . 1 , 745 . 6 316 1.1 56 . 2 3 , 460 

Water year 1940-41 3 , 645 .4 316 0 9 . 99 7 , 230 

.!~; kt~Md~~~~:rt:~:O~~. (~ (3m~~ra7~ ~e~ge;;~::ft7~ ~c:t~ i~0 (~ ;;;/ p~~) "i~46gt;~c~~t . 28 (

7

:

30 

a No gage- hei ght record; discharge computed on bash of known ra.ngc 1n .stage a.nd weather record a . 
RIO ORANDE BASIN 293 

Toyah Creek below Toyah Lake , near Pecos, Tex . 

Ls?catlon.- Water-stage recorder, lat. 31°21', long. 103°24' , swt sec. a·, Blk. C-7 , Pilbllc School Lands Survey, at bridge on Pecos-Grand ralls highway, at lower end or Toyah Lake, 6 miles upstream !rom Pecos River and 7. 4 miles southeast or Pecos. 

Drainage area .- 3, 709 square miles (contributing area). 

Be cords available .- August 1939 to September 1941. 

Enrsmes.- Maximum discharge d11rlng year, 518 second-teet Oct. 15 (gage height, 2.60 

teet}; no !low at tlmee. 

1939-41: Maximum discharge, 5,850 second-teet Aug. 7, 1940 (gage height, 4.17 

teet); no !low at times . Flood or September 1932 reached a stage or 7 . 7 teet according to ln!onnatlon tur- n I shed by local residents. 

Remarka.- Records good except those t or periods or fragmentary or no gage-height record, 

---wnTCii are poor. Several diversions above station tor Irrigati on. Flood !low mater- Ially arrected by use or spread-out dams above station. 

Diaobarce . in second-teet, water year October 1940 to Septemberl94.~ 

-;;;;_; Oot . 

1 

2 

3 

• 5 

6 

7 

8 

9 

10 

11 

12 

13 1. 

15 

16 

17 

18 

19 

20 

21 

22 

23 

2. 

25 

26 

27 

28 

29 

30 

31 

0 

0 

0 

0 

0 

a 

a 

a 

0 4.9 

121 

98 

ua 

~28 

448 

288 

132 

81 

58 

~g 

31 

eo 

1~ 

ll 

8 . 2 

s.e 

5 .8 

6.8 

~.1 

~.1 

1.9 

Nov. 

1.a 

. 5 

.2 

.1 

a 

0 

0 

. 4 2.2 

1 

1 .8 

1.8 

~ 

. 1 

a 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Ooo . 

Wontb 

0 

a 

0 

0 

0 

0 

0 

0 

0 

0 

-o 

0 

0 

a 

0 

a 

a 

0 

0 

a 

0 

a 

. 2 

.7 

4.~ 

4.~ 

4.8 

2 .4 

1.4 

~ 

l.l 

Jan . 

1.1 

. 2 

.8 

.~ 

.~ 

,8 

. 2 

. 1 

.1 

.1 

0 

.~ 

.7 

.8 

L9 

7 . 8 ~.~ 

3.a 

1.8 

1 . 1 

1 .8 

0 

0 

0 

0 

a 

.2 

.e 

.1 

. 7 

.1 

Feb . 

0 

- . 2 

. 2 

0 

0 

.~ 

. 2 

~ 

.8 

r.e 

!.2 

r .~ 

!2.2 

r~.a 

! 2 . 1 

n.e 

t.4 

!.2 

r.1 

r.1 

ra 

ra 

ra 

a 

0 

a 

a 

a 

October .. . ....•. . ... . ...... . . .. ....... . .... No,.e~~M r ......... . .. . .. . .. . .. ... . ... . .. .. . . Deotaber . . . . .. . ...... .... . .......... . •.. 

Calendar year lV40 ... . .. . .. . .... . .. . 

Wa r . 

0 

.s 

.2 

.1 

0 

0 

0 

0 

.2 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Apr . 

0 

0 

0 

0 

0 

0 

0 

a 

0 

0 

a 

0 

Secondtoot.-da.ya 

1 , 784.0 

11.1 

20 .~ 

8 ,434:.8 

January. . . ..... . . ... . ...................... 29 . 9 Februaq .... .. ...... . ........ .. ... •.. . ..... 12.& 

llarob . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . . . 1.0 April. .. . . . ..... . . ..... , . . ...... ........... 0 

llo.y .. . . . ... . . .. . .• . . . ..•..• . .•.. . . • . · · ···· · ~.1 

Juno . . .... ... . . .... . ,... . ......... .... . . ... ~4 .4 

July .... .... •. ... .. . . . . •. . , ....... . ... . . . . . 48,7 AUIUBl. ... ...... . . . . . .... . ........... . .. . .. 2. 1 

llay 

a 

0 

4.8 a 

.9 

.2 

.1 

a 

a 

a 

&20 

28 

~9 

54 

~~ 

18 

12 

~ 

5.8 

448 

~.1 

4,8 

3,·UO 

7,5 

.0 

.5 

a 

June 

5 . 2 } 2 .1 

. 7 

a 

&55 

} .... 

Winiaua 

a 

a 

a 

a 

a 

a 

a 

0 

0 

0 

0 

July Au& . Sept . 

aO. l ~ d.7 

0 e.~ 

aO.l 5 . 2 

3 . 1 

2.8 

1 . 5 a 

a . 8 

.8 

&2.6 

a a 

0 

a 

}~ a 

aa 

&3 .. 0 a 

a a 

lie an 

57 . 6 

~7 

.55 

2~ a 

.98 

,46 

.a~ 

a 

1~.9 

~1.1 

1.57 

.a7 

.1 

.6 

.4 

.2 

.4 

. 7 

.5 

. 5 

.2 

0 

. 1 

.2 

.a 

.5 

.l 

a 

2 .4 

4.5 

2 , 4 

1.1 

0 

.8 

,2 

.1 

Runoff i.n acre-teet 

3 ,MO 22 

40 

16 , 730 

59 

26 

2.0 

0 86~ 

1 , 850 

97 

4, 2 

0 1 , 88 gg Septe•bor .... . .. .. .. .. .... .. ........ .. ..... 1-__ ..:4.:.9.:. ,9+----t-------+----+-----

Waler year lQ40..•1 . . . .... .. . . ......... . 448 a 9 . 11 5~ 

a Jito gap-height reoOrdJ 41aobarge oc:.puted on baa1a or known range J.n stage, engineer'• n.otee 

and weather recorda. r P'rapenta.rr gage-hei@.bt reobrdJ c11aoharge oampu.ted on. baala or partly eatiaated gage heights . 
294 RIO GRANDE: BASIN 

San Solomon Springs at Toyahvale, Tex . 

Locati on .- Water- stage recorder and sharp-crested weir, lat. 30°56', long . 103°47 ', In 

st, sec . :!56 , Blk . 13, Houston and Great Northern Railroad survey , on South Canal at Toyahvale, Reeves County , and 540 reet downstream r rom spring pool. Datum or gage Is 3,311 .0 teet above mean sea level , datum or 1929 . rormer gage at same s tte and datum. 

Records available.- September 1900 to June 1925, February 1934 to Aprll 1936 (occasion- al discharge measurements published as miscellaneous measurements) . October 1931 to December 1933, March 1941 to September 1941. 

Extremes .- Maximum dally discharge during period , 64 second-teet, Sept . 30; minimum 

dally, 32 second-teet , Mar. 28 to Apr. 9 . 1931-33, 1941 : Maximum dally discharge, 7l second-teet , Oct . 7-9, 1932; mlnlmu,m 

dally , 30 second-teet , Nov. 5-11, 1931, Jan. 22 to reb. 23 , 1932 . 

Remarks .- Records good . Discharge represents total now or springs and Is determined by 

----coiii15Tnlng the nows ln South Canal and two add! tlonal outlets (now measured psrlodlcally), Mlddle and Nor h Canals . now lnto each cana l regulated by operation or headgates. Water used tor lrrtgatlon In vlclnlty or Balmorhea . 

Dischar&e . in second-teet . water year October 1940 t o September 1~1 

Day Oct. 

l 

2 

3 

4 

5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

'n 

28 

29 

30 

31 

October ..... November .. 

December. 

Nov . 

Calendar year 

Dec. Jan . 

Won t h 

January ...... . ... . ..... . .. . . 

February . ...... . ... . ...... .. .. ... .. .. . 

Feb. 

t3' 

March 20- 31 . . . . . . . • . .. . ..... . . . ... . 

April. . . .......... .. ... •• . • ... . . ..•.. May. . ... .. . ... ... ... . 

Ju.ne . . . . .. .... •..•. .. .• • .•....•. .••.•..•.• July .... .. ....•... . . ..•. Augu.st .......... • . .....••.•.. . ..• . ••. • . . 

September ... 

The period ....... .. . 

t Average or two dischar ge measurements . 

War . 

~3 32 

32 

·32 

32 

Apr . llay 

38 

38 

35 

37 

38 

38 

38 

38 

38 

3 8 

38 

38 

38 

39 

38 

38 

38 

38 

38 

38 

38 

37 

37 

38 

39 

'0 

39 

39 

~ 

39 

39 

Secondroot-days lta.xieu..e 

392 

996 1 , 179 1 , 170 1,229 

1 , 244. 1,599 

33 

36 

'0 

u 

41 

'2 

64 

~ Combined mea.aured discharge or tb..reo outlets from spr ing pool. 

June 

38 

38 

38 

39 

'0 

32 

32 

36 

38 

39 

39 

'3 

July AU& . Sept. 

lloan 

32 . 7 

33."2 

38 .0 39.0 

39 . 6 40.1 

53 .3 

~ 

'0 

'0 

39 

39 

'0 

39 

39 

39 

39 

39 

39 

39 

39 

39 

39 

39 

39 

'0 

u 

'2 

Runoff ia acre-teet 

778 1 ,980 

2,340 

2,320 

,~ 

2 ,470 

3,170 

16,600 

Note.- Dis charge Xa r. 24- 28 , Apr. 7-24, 1'\ay 28-31 , Juno 19- 27 , Ju.ly 15- 18, July 21 to Aug. 4, 

Aug:-!tJ- 25 , Sept. 25- 30 , competed on baaie or flow in Soutb Canal and oatlmated r low in two addit1on- a1 outlets from spring pool 011ddle aod North Ca.nala J measured por1odioal1y). 
RIO GRANDE BASIN 295 

Comanche Spr ings st rort Stockton, Tex. 

Location .- Water-stage recorde r, lat. 30°53 ', long . 102°52 ', in swt sec. 160, Blk. 117, 

George C. Thunnan survey, on outlet canal or Pecos County Water Improvement District 

No. 1, in eastern outskirts or rort Stockton , Pecos County , a quarter or a mlle up- stream from bri dge on U. S. Highway 290, and 0 .5 mlle downstream ! rom head or spri ngs . Datum or gage is 2,922 .8 teet above mean sea level, datum or 1929 . 

Records available .- rebruary 1941 to September 1941. 1899 to September 1940 (occasional 

discharge measurements published as miscellaneous measurements). 

Extremes.- Maximum dally discharge during pe riod , 52 second-teet June 22, 23; minimum 

dally, 41 second-teet Apr. 18-22, May l. 

Remarks.- Records good. Discharge represents ---or!and irrigated below station . total now or s pr i ngs . About 6, 000 ac r es. 

Discharge , in second-teet , wa t er year Oc tobe r 1940 to September l.941 

a~ Oct. Nov . Dec . J ao . F'eb . 

1 

2 t42 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 t44 

16 H2 

17 

18 t40 .. 19 45 

20 46 

21 46 

22 47 

23 48 

24 46 

25 46 

26 45 

27 42 

28 42 

29 

30 

31 

Mon th 

October ......... . .......... .. .• . . .......... November ...... . ......• . .•................. . 

Dece11be r .. . .. ...... •. .. . . ..•..••.••. . ...... 

Calendar year 

War. Apr . llay 

4~ 44 41 4~ 44 e42 

H .. 42 44 44 42 

•• H . 42 

44 46 42 44 45 42 44 45 4~ 

45 45 42 46 45 42 

« H ~ 

44 43 4~ 

.. 43 ~ 

44 43 4~ 

45 ~ 44 

H 42 4~ 

46 42 42 

44 4l .. 44 41 4~ 

44 4l 42 

44 4l 42 

44 41 43 H 42 o43 

44 42 43 .. 42 .~ 

44 o42 44 43 ··~ 43 44 42 43 44 42 4~ 

44 4 2 4~ 

•• ·~ Second- Ma.ximu• roo t-days 

June July Aug . Sept . 

43 o50 ·~ ~ 

4~ 50 42 4~ 

·~ 4S 42 o43 

43 47 42 

43 46 42 ·~ 4~ 

·~ 46 4~ 4~ 

43 46 42 4~ 

4~ « ~ .. .~ .. 43 4~ 

e4:2 44 o44 4~ 

42 H 45 H 

42 H ... H 

42 45 44 44 

4~ 46 .. 44 

... 46 4~ 44 

44 46 43 H 

45 46 ~ « 46 46 43 « 48 45 ·~ H 

50 45 42 ~ 

51 ~5 o42 43 

52 46 43 ~ 

52 46 43 ~ 

50 46 42 4~ 

50 46 42 ~ 

50 45 42 42 

61 46 42 42 

o51 45 42 42 

o50 « 42 42 

o50 4~ 42 o42 

4~ ~ 

Yinl•um lie an Runoff ill 

acre-teet 

January . .. . .... .... ... ..•..•. . • ..• .... .. .. . 

February 18-28 . ..... ...... ........ . .. . ... .. 496 48 !~ ·:::i· ,~~ 

=~~~ ::::: :::::::: :: :::::::::::: ::::... :; :g 41 42.Q ~::g llay . .............. .. . .. ......... . ..... . .... •~ 22 .. :~ :~:~ 2,740 

~:r; :::::::::::::::::::: ~::::::: ::: :::···· :~ ~ ·~ .s.• ~: Aus:uet . .............. .... ..... •. . . . . . . . . . . . 1,325 45 42 42.7 

Seple•be r . ....... . . . ..... • .. • .... ..... ..... j....... _ _:1:..:.29:..:6+---.:._l------2+--- . 2-+--,--,2,-' ,.57:-,0,-

Tho period . .. .. .. ,,. ...... .... .. . .. .. ... . 1g , 590 

a Ho gage·bo1gbt reoordJ dlsobarge interpolated. e O.so-helgbt not reproaentatlTe or d1aoharge J dia oharge i nterpolated. 

t Olaoharge measurement. 
296 RIO GRANDE BASIN 

Devils River near Juno, Tex . 

Location.- Water-stage recorder, lat. 29°56', long . 101°09', 500 teet downstream !rom walter Saker ranch house , 2 miles upstream !rom Phillips Creek , and 131 miles south- west or Juno , Val Verde County . 

Dra i nage area.- 2 , 733 square miles. 

Records available.- May 1925 to September 1941. 

Average discharge.- 16 years, 215 second-teet . 

Extremes .- Maximum discharge during year, 652 second-teet May 2 (gage height, 3 .67 teet); 

minimum, 60 second-teet Mar . 11 . 1925-41: Maximum discharge , 370 , 000 second-t eet Sept. l, 1932 (gage height, 31.3 t eet, !rom !loodmarks), by slope-area me thod; minimum, 46 second-teet June 4-6 , 1930. 

Remarks.- Records good except those above 100 second-feet, whiCh are !air. No dlver-

---srons above station. 

Discharge, in second-teet , water year Oc t ober 1940 t o Septembe r 1941 

o-. Oct . ..Nov . De c. Jan . F"eb . War. Apr . w-.. June July Au& . Sept. 

1 81 79 76 68 77 64 7 2 88 72 8Q 8 2 81 

2 81 79 7i 68 71 64 71 22:5 72 8 9 8 2 81 

3 81 79 74 68 68 64 71 208 7 i Ql 82 82 

4 81 79 74 Ga 68 6~ 69 H2 74 8 9 82 82 

5 81 a1 H 68 68 64 68 131 72 8 6 82 64 

6 81 79 74 66 66 68 6Q 119 76 86 88 84 

7 81 81 74 66 tw5 64 68 111 72 84 88 64 

8 81 82 74 66 6Q ~ 66 10~ 72 8 4 86 84 

9 81 82 74 66 68 61 66 Q9 71 64 86 86 

10 81 81 76 66 68 63 66 93 71 84 86 86 

11 82 79 76 66 68 61 68 89 71 88 64 93 

12 84 77 72 66 68 6~ 66 88 71 88 84 Ql 

13 82 H 72 68 68 61 68 64 71 86 82 89 

14 82 72 68 66 6~ 71 82 69 112 82 88 

15 81 77 72 68 68 6~ 76 81 180 Ql 82 88 

16 81 B ~ 68 68 61 72 81 162 8Q 82 89 

17 79 68 66 6Q 68 81 1~9 88 82 91 

18 79 77 71 88 tw5 68 tw5 8 4 106 86 81 96 

19 79 :;:: 71 68 68 M 64 88 101 86 81 Q~ 

20 79 71 68 66 6~ ~ 7Q QQ 88 81 91 

21 79 B ~ 68 66 ~ 63 7Q Q7 64 81 89 

22 79 

~ 88 66 6~ 6~ 7Q 96 84 82 8Q 

23 79 

~ 68 68 ~ 6~ 77 96 64 82 8Q 

24 82 

=~ 66 tw5 ~ ~ 77 91 64 82 89 

25 8 4 66 tw5 ~ 63 77 Q~ 64 81 86 

26 8 2 ~ :: 66 66 M 71 77 91 82 82 86 

27 81 

;~ 64 

~ 69 76 8Q 82 82 88 

28 81 ~ ~ 64 6Q 74 eo 82 64 88 

29 7Q 

~ ;; - 77 74 86 82 82 86 

30 7Q : - 7 8Q 74 88 82 82 88 

31 7Q - 6~ - 7 - 74 - 82 81 - llootb Second- llaxiaua Miniaua lie aD Runott in toot.~a;ya aore-teet 

October .... . .... ... .. .. .. .. .... .. .......... 2 ,&02 64 7Q 80 . 7 4,960 November. ............. .............. ..... . . 2,~40 82 78 78.0 4,640 Decaaber .............. ··· ········· ········· 2,222 76 68 71.7 ,,,10 ------- - -- --- ------ ------ --- --- Calendar yea r 1940 .............. ........ 31,371 60Q 68 85.7 62,21.0 

------- ------ ------ - - ---- - ----- Janua ry .. . ........... . .. . ..... . . .... ... .... 2 ,()g1 69 86 67.6 4,160 

February ... . . . . . . . . . . .. .. .. . ............... 1,887 77 64 87.4 3,740 

March . . . ..... . .... . . .. ..................... 2,011 74 61 64.9 3 ,9QO 

April. ....... .•. . •.... . .....•. .• . . .. . ...... 2,058 89 6~ 68.6 4,060 

llay . ..... . .... . . ........... ·· ········ ······ 2 , 990 = 74 96.6 6,9:50 

J@e ....... ... ..... . . ... . . . . . ... ... ... . . ... 2 ,703 180 69 90.1 5 1 3-GO 

July ... . ... .. . .. ... ... ..... ······· . .. . . .... 2 , 678 112 82 86.4 6 ,310 

August ... . ........ .. . ..... .... .. .. .. ....... 2 , 666 88 81 82 . 8 6,090 

Septellbe r . . . .... . . . . . . . . ... ...... . . ... . . . . . 2,616 96 81 87,2 6,190 

Water year 1040-41 ..... .. ... .... ..... ... 28,684 223 61 78,6 66 ,860 
RIO GRANDE BASIN 297 

Las Moras Springs at Brackettville, Tex . 

Location.- Stat! gage , lat. 29°18', long . 100°25 ', In spring pool at Brackettville, 

Kinney County, a quarter or a mile upstream rrom bridge on Brackettvllle-rort Clark 

road. Datu!!! or gage Is 1,095.0 reet above mean sea level (Texas Hi ghway Department 

bench mark), Prior to reb. 26 , stat! gage at site 1, 000 reet downstream and at dHrerent datum. 

Records available.- December 1895 to August 1938 (occasional discharge measurements, 

published as miscellaneous measurements), September 1938 to September 1941 (discharge measurements only) . 

Remarks.- Discharge measurements represent total now or springs. E:levatl on or spring ---poor1s regulated by operation or the outlet gate and discharge Is atrected to a large extent. Cl tY or Brackettville and u. s. Amy (about 1 second-root, ror r ort Cla rk) 

dl vert watsr rrom spring pool ror domestic and recreational uses. 

Disehs.rge measurements, 1n second-feet, water year October 1940 to September 1941 

Doto 

Oct. 15 ..... ... . . 

Nov. 26 . •.• · •• •• • 

Jan. 12 .. · · · · · · · · Po b. 26 •• • · ..... • Apr· 13 ......... . 

11ay 16 •• . . . ....• 

J\lne 18 .. · .. . · · · · J\l.ly 22 •••.••..• • 

Aug. 29 .. • • .. •.• • Sept .26- . . ...... . 

~-25 

~-25 

~-22 

t4-96 

~-9~ 

~-62 

~- 49 

~5 

3.42 

Discharge 

( eecond - feet) 

15- 7 12.1 

ll-7 

11 . 2 15.0 

~7-5 

27.0 

21.4 

1 5.4 

16.6 

t Outlet gate closed; ,..ter flowing over top 

ot' N~~~~: Gage heights 1nd1oate the elevation 

ot--e:iewater surface in the spring pool . 'l'he variation of the bead on the spring pool bae a material errect on the spring dlach&rge. 

During the current year the elevation or the water eurraoe range4 between 3 . 18 and 5 . 48 

root gage height. 
298 MIMBRES RIVER BASIN 

Mimbres Rive r near Mlmbres , N. Mex . 

Location.- Water-stage recorder and concrete control, lat. 32°52 ' , long. 107°59 ', I n 

~~t:!e~~c.;/~!m~re;~ s. , R. 11 w., 1 mile downstream !rom Bear canyon and H miles 

Drainage area . - 183 square miles. 

Records available .- Octobe r 1930 to September 1941 In reports or Oeolog t cal Survey. May 

1921 to Decembe r 1931 In repor ts ot State engineer. 

Average discharge . - 18 years (1921-24, 1926-41), 13. 2 s e c o nd-teet. 

Extr emes .- Max i mum discharge dur i ng year, 887 second-teet Sept. 29 (gage height, 4.53 f eet ) , r r om rati ng cu rve extended above 310 second- t eet by loga rl thmlc plotting; 

minimum dally, 3 . 3 second-tee t Oct. 30 to Nov . 1 , Dec. 6 , 7. 

1930-41 : Maximum discharge, 2 , 060 second-teet July 17, 1933 , !rom rating curve 

exte~ded above 120 second-teet by loga r l thmlc pl otting; max i mum gage height, 4 .89 teet Aug. 6, 1939 ; mi n imum dally discharge, 1.4 second-teet J uly 11, 12 , 1933 . 

Remarks.- Records good . Discharge partly regulated by Bear Canyon Reservol r (ca pac! ty , ---aOoiif 700 acre-teet) . Several diversions above station ro r Irrigation. 

Discha rge , in second-teet . wate r yea r Oc tober 1940 t o Sept ember 1941 

Day Oc t . Nov . Dec . Jan . Feb . War. Ap r. llay June July Aug . Sept. 

l 7 . 0 ~.~ ~.8 ~ 4 49 97 76 15 7. 4 ~ 16 

2 7. 0 ~.5 ~.s 28 1 65 85 85 15 6 . 4- 7 . 7 12 

3 7 . • ~.8 s 22 1 68 n ~ 15 6.4 8.3 11 

4 7 . 4 3 . 8 3 . 5 17 31 6~ 66 76 14 7 .0 9 . 4 9.9 

5 a .o 4.0 3 . 5 16 3~ 58 63 76 14 6 . 7 9.0 9.0 

6 8.3 4. 3 ~.~ 14 36 52 61 88 13 7 . 0 a . o 9.0 

7 7.7 4. 5 3 . 3 12 47 45 58 100 13 9.4 7 . o 8.7 

8 7 . 4 4.5 3.5 12 56 42 ~ 104 13 15 6 . 4 9. 0 

9 7.4 4.7 3.5 11 63 41 63 100 12 16 7. 0 ~ 

10 7.0 4 ·5 3 . 5 10 79 37 65 100 11 15 7 .0 8.o 

11 6 .4 4.5 ~ 11 9 4 36 65 94 10 l4 a. o 6 . 4 

12 6.4 4.5 1~ 29 107 4 68 91 9 . 9 13 14 s.s 

13 6 . 4 4 .3 20 4l 91 42 70 e2 o .o 1.0 23 6 . 7 

14 6 .4 4. 0 1~ 33 76 76 61 70 9 . 0 11 13 8 . 7 

15 6. 4 4. 0 8 . 3 29 68 158 56 61 9 . 0 17 13 8 . 7 

16 6 .4 4.0 6. 4 25 68 167 5 4 52 8 .7 17 61 8 . 7 

17 6. 4 4 .3 6. 4 20 70 132 56 45 6.7 12 52 9.0 

18 6. 0 4 .0 6.7 18 70 118 58 ~9 5 . 7 11 27 9 .4 

19 5. 7 4 .5 6.7 18 65 104 5 4 ~7 6 .0 8.7 18 9 . 0 

20 5.5 •. o 6.7 18 63 100 49 3~ 6 .0 25 18 9.9 

21 5.5 4 .0 7.0 16 73 4 a46 30 6 .4 14 20 10 22 5. 5 4.0 6 . 7 16 88 97 44 27 6 . 4 l4 27 ll 23 5 . 5 4.0 6 .7 15 85 104 39 25 9.0 l4 111 10 24 5 .7 3 . 8 6.7 15 82 alOO 39 22 10 16 44 10 25 5 . 5 a 22 15 73 a110 41 23 10 ll 23 9 .9 

26 s .o 3 . 8 12 15 63 104 58 22 9 .0 8.3 15 9 .4 27 s.o 3 . 8 9 .0 15 52 91 76 20 8 . 3 8 . o 12 9 . 4 28 5 · 2 3.8 ~ 19 47 82 79 19 7 . 7 7. 4 12 28 29 4. 3 3 . 8 8 . 3 36 79 7~ 18 a .o 7 . 0 11 363 30 3 . 3 3 . 8 9 . 0 u 82 7~ 16 7 . 7 6.0 12 79 31 3.3 33 37 9 4 16 11 46 

Wonth Second- Maximum Mi ni mum Moan Runott in root-days ac re-teet 

October . .. . ... ........ ....... 190.4 8.3 3 . 3 6 .14 ~78 

November . . ..... .... .... ...... 121.6 4.7 3 . 3 4. 05 2U 

December . 255 .1 33 3.3 8 . 23 506 

- ---- - - Calendar year 1940 .. 5 , 029 . 5 152 2 .8 13.7 9 , 980 

- ---- - - January .. .. . ..... .. . . .. . . • . .• . . •.. . . .. . . .. 657 u 10 21.2 1, ~ 

February . .. .. . .... .. .. ... .............. ... . 1 , 776 107 31 63 . 4 3, 520 

March . ..... . .. . . . . . .... ... .... . . . . . . . .. . . . . 2 , 524 167 34 81.4 6 , 010 

April. . . ... . •..• . • •. • . .• • . •. •• ....•..•... .• 1 , 852 97 39 61.7 3 , 670 

llay . ... . . .... . .. . . . . . . ... ... 1 , 720 104 16 55 . 5 3 ,UO 

June . .. ........ ........ .... ... ....... 297 . 5 15 5.7 9 . 92 590 

July .. . . ... . 351 . 7 25 6 .0 11 · 3 698 

August . ... . .. . ........ . . . .. . ... .. 658 . 1 111 6 . 4 21 .2 1, 310 

September . . . . . .. . . . .. . . . .. . ... ..... 722 . 6 3~ 5.5 24.1 1 ,430 

Water yea r 19 40-41 ... . . . . ... . . .. 11 , 126 -0 363 3.3 30.5 22 , 060 

Peak dl:scha rse · - July 20 (5:30 p .m.) 100 sec . - ft. ; Aug. 23 ( 4 p . m.) 557 sec. - ft .; Aug. 23 (6 p .m. ) 

536 sec . - ft . ; Aug . 31 (9 p .m. ) 550 sec .-ft .; Sept. 29 (6:30 . .... ) 887 s ec .-ft . 

a No gage - he i ght record; discharge interpolated or computed on basis or e stimated gage heights and weather r e cords . 
MIMBRES RIVER BASIN 299 

Mimbres Ri ver near Faywood , N. Mex . 

LOcation. - Water-stage recorder, lat . 32°36' , long. 107°53' , in sec . 7 , T. 20 s., R. 10 w. , 6 m!les northeast or Faywood Hot Springs, lO m!les northeast o r Faywood, and 12 m!les upstream ! r om S an Vi c ente Ar royo. 

Drainage area . - 485 square m!les . 

Records available . - Apr!l 1908 to December 1914 and Octob er 1930 to September 1941 in 

repo r ts o l Geological survey . Apr!l 1908 to Decembe r 1931 in reports or State engineer. 

Averntdischarge.- 25 years ( 1908-10 , 1912-17, 1919-24, 1926-27, 1929-41). 23.5 secondExtremes . - Maximum discharge during year, 8,580 second-teet Se ptembe r 29 (gage heigt.t, 7 .2 feet), ! r om rating curve exten ded a bov e 320 second-teet by l ogari hmi c plotting; minimum dally , 2. 0 second-feet July 2, 3, 5 , 10, ll, Sept. 5 , 15-17. 1930-41: Maximum discharge not dete rmined; maximum gage height , 10 .0 fe e t Aug. 4, 

1939; n o now at t!mes . 

Remarks.- Records fair October to June, others poor. Se veral diversions above station 

--ror-Trrigation . 

Discharge , i n second-teet . water year Oc tobe r 1 9 40 to Sept ember 19il 

Da Oct. Nov . Dec. J an . Feb . War. Apr. llo.y June July Aug . Sept . 

1 5 . 2 3 . 7 6 -4 88 76 79 130 85 4. 7 2.2 3 . 3 36 

2 4 . s 3.9 6 .4 71 71 88 130 98 4 -4 2 .0 3 . 3 14 3 3.6 4 . 1 6 . 1 61 66 97 114 98 a 4. 2 2. 0 3.3 6. 1 

4 3 . 2 4 . 3 6 -1 so 61 89 99 88 a3.9 2.2 3 .0 2 .6 

5 3 . 2 4. 5 6 . 4 44 63 86 8 4 90 3.7 2 -0 3 .0 2 . 0 

6 3 .1 4. 8 6 . 4 42 66 8 4 81 88 4 -7 2.2 3 .0 2 . 6 

7 3. 4 5. 0 6 .1 38 82 76 79 92 3 . 7 2 . 2 3 .0 2 -2 

8 3 . 9 5. 4 6 .• a35 104 68 76 88 2.6 2.2 14 16 

9 4. 1 5 .4 6. 4 a 32 128 59 73 87 2 -6 2 . 2 8 -2 6- 1 10 3.9 5 . 4 6 . 6 a 30 142 54 73 88 2.6 2 -0 2-8 2 -4 

11 • • a s . e 7 .s a35 1 42 5 4 7 4 a s 2 . 6 2 . 0 2 . 8 2 .4 12 5 . 4 5 . 6 a. o 51 152 55 76 78 3 . 0 27 •·a 2 . 4 13 5 . 4 5 . 4 25 86 152 60 82 73 3 .3 32 118 2 . 4 

14 4 .e 5. 4 31 77 137 77 74 67 3 . 7 1 7 a SO 2 -2 15 3.9 5 . 4 27 68 123 1 44 66 6 4 3.0 39 83 2. 0 

16 • · B s . • a23 60 112 168 60 61 2 . 5 24 385 2 .0 

17 4 -5 5.6 20 48 110 185 58 5 4 2.6 14 262 2 -0 18 3 . 9 s . e 19 4l 110 157 54 44 2- 8 6 . 9 138 2 .2 

19 4 -1 5 . 6 18 4l 102 140 52 38 3-0 4 . 4 127 2 . 4 

20 3 . 9 5 .1 19 41 97 130 49 a33 3.3 3.7 132 2 . 6 

21 3 . 9 6.6 17 38 100 123 46 a29 3 -0 155 235 12 22 3 . 7 6 . 6 1 7 37 110 128 45 a25 3 .0 29 207 all 

23 3.6 7 . 5 16 37 128 142 43 22 3.3 24 135 alO 24 3.6 7.5 16 35 123 lSO 42 21 3 . 3 27 135 9 . 3 25 3.6 7.2 38 36 110 157 41 24 2.6 20 45 e.e 

26 3 . 4 6 . 9 40 36 97 1 54 162 23 2 . 6 15 a34 6 · 4 27 3. 4 6.9 34 36 88 144 75 19 2 -6 12 23 s .o 

28 3 . 2 6 -6 32 41 82 130 94 15 2 . 6 24 14 93 29 3 . 6 6.9 31 68 121 87 12 2 -8 10 12 .t ,410 30 3 .9 6. 6 31 86 114 82 e.e 2.6 • . 4 7 -B I 2 10 31 3.9 55 8 1 117 6.9 3. 7 44 i -

Month Se c ond- Yaximu• Minimum Mean Runott in root-days acre-feet 

October .......... , ........... . ............ . 123 .4 s . 4 3. 1 3 . 98 2 45 

Noveeber ............. ......... . •..... . .. . .. 1 71 . 9 7 . 5 3.7 5 . 73 3 41 

Deceabe r ........ . ........ .... .... sea.8 55 6.1 19 .0 1 ,170 

Calendar yea r 1940 ....•.••.•..• ... . . 7,220-1 426 1 . 3 19 . 7 14, 320 

January . . . ..... . . . .. . ..... . ....... .. ... 1 , 570 88 30 50.6 3 ,110 February ........ . ........ . . . . . .. 2 , 93 4 152 61 lOS 5 , 820 March ......... . ........ ... . . ... ····· · ·· ·· · 3 , 430 185 54 111 6 , 800 Ap r il .. .. . . . . . . . . ..•....... ...... .... 2 , 301 162 41 76.7 4, 560 May . . . . . . . ... .. ... .. ..•.... . .....• . ... . . 1,704 . 7 98 6.9 ss . o 3 , 380 J une . .. . ..... . ........... . . ..... .•... ...... 95-4 4 . 7 2.6 3. 18 189 Jul y . . . ..... . .•.•. . •..• .. •.. . .•.. 515.3 155 2.0 16.6 1 , 020 August .. .......... . ........ 2 , 241.3 385 2 -8 72.3 4, 450 Sept e 111ber .... ... .... ......... . . 1 , 888.1 1,410 2 .0 62.9 3 , 740 

"ater year 1940 -4.1 . .... .............. 1 7 , 563 . 9 1 , 410 2 . 0 48 .1 3 4, 820 

1 , 800k e~ ~~:f ~~~6 o c~.: · ~9~ ::~. ~~ : ~~- J~y c~ 1 P~~ )·~ ; !1~ ~~~ ~~~ : r;~~t 19 15 (8 p .m. l (5:~ a.m. 

8 , 580 aec .- rt . a No gage - height r ecor d j d1 s chargo computed on basla of weather recorda and recorda tor station near 

111mbrea . 

498588 0 - 43 - 20 
300 MIMBRES RIVER BASIN 

Bear Canyon near Mimbres , N. Mex. 

Location .- Water-stage recorder and concrete Parshall rlume , lat. 32°53', long . 108°00 ', 

In St sse . 29 , T. 16 s., R. 11 w., 100 reet downstream from bridge on State Highway 167 , 200 reet downstream !rom Bear Canyon Dam, and 2 m!les northwest or Mimbres. 

Records available .- October 1937 to September 1941. 

Extremes.- Max!mUJ:l discharge during year, 76 second-teet Sept. 29 (gage height , 2 . 88 reet) , from rating curve extended above 21 second-teet by logar! thm!c plotting; no now at times. 

1937-41 : Maximum discharge, that or Sept. 29 , 1941; no now at t imes . 

Remar ks .- Records !a! r except those t or Aug. 30 to Sept. 7 , wh! ch are poor . F'low regulated 

----,;y-sear Canyon Reservo! r (capac! ty, 700 acre-teet) . One d! vere! on above station !or 

!rr!gat!on . 

Discharge . in second-teet. water year Oc tober 19 40 t o September 1941 

Day Oct . Nov . Dec . Jan . Feb . Ma r . Apr . Way June July AU& . Sept. 

1 0 . 4 0 4.0 6 .7 e . 6 3.7 0.1 0 0 aO.l 

2 .4 0 3 . 6 7 . 9 8 .1 4.8 0 0 0 a.1 

3 . 3 0 3 . 6 7.4 7.4 3 . 4 0 0 .1 a.1 

4 .3 0 3 . 7 6 . 6 6 . 6 3 .7 . 1 0 . 1 a . 1 

5 .3 0 4 . 3 6 . 6 6 . 8 3 . 4 . 1 0 . 1 a . 1 

6 .2 0 5 . 2 6 . 0 6 . 9 2 .8 . 1 0 .1 a .1 

7 . 2 0 9 .4 5 . 2 6.4 2 .3 0 .3 . 1 a .1 

8 . 2 0 10 4.3 5 . 9 2 . 0 0 6 . 7 . 1 . 1 

9 . 2 0 13 3 . 8 5 . 2 1.5 0 9 . 1 0 . 1 

10 . 1 0 16 3 . 2 4 . 9 1 . 3 0 9 . 1 0 . 1 

11 0 0 17 3 . 0 4 . 6 1 . 1 0 9 . 1 1 . 0 . 1 

12 0 0 20 3 . 0 5 . 0 . 8 0 7 . 6 2 . 8 . 1 

13 0 0 14 5 . 4 5 . 0 . 8 0 2 . 4 2 . 1 .1 

14 0 0 12 13 4.1 .3 0 2 . 4 1.3 . 1 

15 0 0 11 24 3.7 .2 0 1.1 1.3 . 1 

16 0 0 11 21 3 . 3 . 2 0 0 1.4 .1 

17 0 0 12 14 3.2 . 1 0 0 1.3 . 1 

18 0 0 11 12 o.o ol 0 0 1.3 .1 

19 0 0 10 11 2 . 7 . 1 0 0 1.3 . 1 

20 0 0 9.8 10 2 .4 0 0 0 1.3 . 1 

21 0 0 11 9.4 2 . 1 0 0 0 1.4 . 1 

22 0 0 12 11 2 . 0 . 1 . 1 0 1.4 . 1 

23 0 0 12 13 1.8 .1 . 1 . 1 1.3 .1 

24 0 0 12 13 1.5 . 1 . 1 . 1 6 . 8 . 1 

25 0 0 10 13 1.7 . 2 . 1 . l 2 . 7 . 1 

26 0 0 8 . 8 13 3 . 7 ~ . 1 . 1 1.4 . 1 

v 0 0 7 .4 11 4 . 8 .2 0 .1 1 . 3 . 1 

28 0 0 6 . 7 9 . 5 4 . 6 . 1 0 .1 1.3 2 . 4 

29 0 . 1 8 . 8 4 . 2 . 1 0 . 1 .4 49 

30 0 5 . 2 8 . 5 3.6 . 1 0 0 a.1 15 

31 0 4.7 8 . 2 . 1 0 a . l 

Month Second- ltut..u• M1n1•ua Wean Runoff i _D toot-days acre-teet 

October . ...... ... . . ..... ... ..... .... 2 . 6 0 .4 0 0 . 08 5 . 2 

Noveaber . . ....... .... .... .... ....... . 0 0 0 0 0 

Deceabe r . . . . ... ···· ··· ····· ·· 0 0 0 0 0 

Calendar year 1940 .. 799 . 6 30 0 2 .18 1 , 590 

January .. . .. 10.0 5 . ?. 0 .32 20 February ... . . . . . . . . . . . 280 ~ 20 3 . 6 10. 0 556 March .. ..... .. ....... ............ 292 . 5 24 3 . 0 9.44 580 Apr il .. . . ...... .. . . ... 133.7 8.6 1.5 4 . 46 265 May . ........•.. •...... ........... 33.9 4. 8 0 1.09 67 

June . ..... . . . . . . . . . . . . . . . . . . . . . . . . 9 . l 0 .03 1.8 

July . ..... ····· · · ·· ··· ........... 48 . 5 9 . 1 0 1.56 96 

August ...... ..... . .......... 33 . 9 6 . 8 0 1 . 09 67 

September .. . ........... .. 69.1 49 . 1 2 . 30 137 

Water year 1940-41 ····· · ······ · · · ·· · · ··· 905.6 49 0 2 . 48 1.eoo 

. No gage- height record; d1echarge comput td on baa • 0 recorded range ln . ago and eng neer • note a. 
TUlAROSA VALLEY BASIN 301 

Rio Tula r osa near Tularosa, N. Mex . 

Loca t ion .- Water-stage r ecorder and concr ete control , lat . 33°07', long . 105°57 ', In SWtb"Wt sec. 15, T. 14 S ., R. 10 E: ., 200 teet upstream rrom divers ion dam r o r Tularosa 

Commun ity dl tch a nd 3 mi les northeast or Tular osa . 

Records available .- Decembe r 1912 to December 1914 and October 1931 to September 1941 In 

r eports of Geol og i cal Survey . December 1912 to December 1914 and Octobe r 1916 t o July 

1917 In reports o ! State engineer. 

Extr emes .- Maximum discha r ge during year, 1 , 740 second-teet Sept. 2S (gage height, 3.15 f eet ) , rrom rating curve extended above 23 second-teet on basis or slope- area determinations or 2,040 and 9 , 640 second-tee t; minimum dally, 3 second-feet June 16. 1931-41: Maximum discharge, 9 , 640 second-teet Sept . 3 1938 (gage height, 8 . 50 t ee t, r r om rloodmarks), by slope-area method; minimum dalh, 1 second-r oot July 31, 

Aug . 1 , 1934. 

Remarks.- Records ralr except those tor periods o r no gage- height record, which are poor . 

Several dive rsions above stati on tor Irrigation . 

Discharge , ln second-teet . water year Oc tober 1940 to Septeaber 1941 

Da~ Oct . Nov . Dec . Jan . ~eb . Mar. Apr . May June Jul y Aug . Sept . 

l 7 12 12 13 l4 13 13 ll 6 10 a20 10 2 7 12 12 13 12 l4 H 10 7 9 &25 9 3 6 12 12 13 12 13 13 l4 ll e1 a30 9 4 7 12 12 ll 12 13 13 23 ll 30 a25 8 5 7 ll 12 12 12 l4 12 l4 ll 17 a20 9 

6 6 ll 12 H 12 14 10 12 12 17 dB 9 7 5 l4 12 13 14 l4 9 12 12 15 &16 6 8 7 13 12 13 l4 14 13 12 10 13 al5 6 9 8 12 12 12 l4 13 12 ll 6 ll 14 ll 10 7 12 13 13 13 12 12 12 6 ll 12 ll 

ll 8 12 13 l4 13 9 12 12 6 48 ll 12 12 9 13 15 20 13 ll 12 10 6 35 ol2 ll 

13 11 12 14 13 13 14 12 9 5 12 aBO 12 14 10 ll 13 l4 12 l4 ll 10 6 eo a20 13 16 11 10 13 l4 ll 13 g 9 5 15 &25 14 

16 10 l1 ll 12 12 l4 10 g 3 all a21 12 17 10 ll 12 13 12 13 ll 10 ll ae a17 12 18 10 ll 12 10 12 13 ll 5 12 45 al5 l4 

19 10 13 12 13 12 13 12 5 12 a25 al3 ll 

20 9 12 12 l4 12 12 6 12 13 75 a12 13 

21 7 12 11 13 12 13 7 15 13 50 al3 144 22 8 12 12 13 13 19 14 15 17 25 l4 a60 

23 8 12 12 13 15 l4 13 22 23 a20 15 a40 24 ll 12 12 l4 13 12 13 15 14 al5 10 a30 26 ll 12 12 16 l4 14 15 17 41 a10 e a25 

26 ll 12 12 l4 16 12 17 13 15 a20 12 a20 

27 12 ll 12 l4 l4 12 H 12 13 125 12 a15 

28 12 ll 12 15 13 13 12 12 ll &40 14 440 

29 12 12 12 16 13 10 11 6 a 50 17 alOO 

30 12 12 12 H 13 u ll 6 a20 12 a 50 31 12 l4 14 13 10 a.l5 12 

llootb Sec oDd- Jlax1aWI Mini•ua Mean Ruootr in 

roo t.-<1t1yw ac re-teet 

Ootober ...... 281 12 5 9.1 557 

Nove .abe r . ........ .. : : : : : : : : : : : : : : : : : : . . : : : : 355 14 10 u .s 704 

Deceaber . .... . ......... . • .. .. . . . . . ..... . , . . 381 15 ll 12. 3 756 

Calendar year 1940 ·········•·· · · ·· · ····· • ,182 85 3 11 . 4 8,300 

J anuary .......... .......• . ................. 420 20 10 13 . 5 833 

February ............. . .. . ..•. .•... ..•. ..... ~81 16 ll 12. 9 716 

Maroh . .......... . ..........•..•..•......... 408 19 9 13 . 2 e09 

April. . . ........... , . . , .................... 353 17 6 n . e 700 

llay . .... .••..• . ...... .. .•. .• .. , .......... . . 375 23 5 12.1 744 

June . . . . ................................... 330 41 3 n .o 655 

July ...... . ..• . . , . .. . . ..•. ... .......... .... 938 125 8 30.3 1 , 860 

August ....... . .. .. . ... ········ ········· ··· 560 eo e 18. 1 1,110 

September .... . . ....... .. .. .. ... 1,136 440 6 37 . 9 2 , 250 

Water year 1940-41 . . . . . . . . . . . . . . . . . . . . . . 6,898 440 16. 2 11,690 

Peak dlacharge.- July 14 _(71~ m:.~ 1 , 560 seo.-tt.; JUly 20 (2 p. m.} 1 , 560 see . -rt.; J\lly 21 (12m.) 

1,250 seo . -tt.; Sept. 28 (3 a.m.) 1,740 aeo . -rt.; Sept . 28 (9:~0 a.m.) 1,580 seo. - rt.; Sept. 28 {10 :30 p . m. ) 1 , 500 aec . -rt. 

a lfo gage-height record; dllobarge computed on baala or re.nge of sta.ge, weather recorda, recorda tor RJo Peli..x at old hlg.to.'a1 'orldgo, near Hagerman, and. Ri o Ruidoso at Hondo. and. 
302 TULAROSA VALLEY BASIN 

Alamogordo-La Luz ditch at La Luz , N. Mex . 

Location .- Water-stage recorder and concrete Parshall flume, lat . 32°58 ' 50', long . 105"56' 15", In SWt sec. 25 , T. 15 S. , R. lO E., a quarte r or a mlle upstream from 

La Luz and halr a mlle downstream from head gate . 

Records available .- Octobe r 1934 to September 1941. 

Extremes .- Maximum discharge during yea r, 35 second-fee t J:.l y 16 (gage he i ght , 1.66 r eet), trom rating cu rve extended above 20 second-feet by loga rithmi c plot ting; maximum dally, 

10 second-feet Aug . 20; no now Aug . 13, 14 . 1934-41: Maximum dally d ischarge recorded, ll second-teet Oct . 21 , 22, 1934, Sept . 11 , 12, 1935, reb . 16- 22, 28 , 29 , 1936 ; no flow at times. 

Remarks .- Records fair. Ditch d iverts wa t er from left bank o! Rio La Luz f or Irrigation. 

Discharge , in second-teet. water year October 1940 to September 1941. 

Da Oct . Nov . Dec . Jan . Feb . War . Apr . Way June July Aug . Sept . 

1 -? 4.2 5.9 5 . 4 1.6 6 . 9 ? . a ? . a ~-2 2 .? 2 . 1 a . a 2 4-1 4. 4 5 .9 5 . a 1.6 ?.2 a .? 4.6 3.6 2 -6 5. 4 ? . a 3 4 .1 4. 4 5 .9 6 . 2 1.5 ?. 1 ?.9 5. 9 3.6 2 .? a6 6-9 4 4-2 4 .? 6 -2 6 -2 a 6 -? ? . 4 ? -6 3-~ 2 .? a6. S 6 . 6 5 4 -2 4 -5 5 .a 6.6 5 .6 6 .? 6.? 6.2 2 .9 2.3 a? 6-2 

6 4.? 4.2 5.a 6.6 5.9 ?.2 ?.6 -~ 3.2 4-a a7.5 6. 1 7 4-5 s.o 5 .a 6.2 ? . 2 6 .9 a.1 5 .6 2.? 4 -0 a a 5 .a a 4.? s.a 5 . 9 6 . 2 7. 1 6.9 6 -4 5 .6 2 -7 ~ aa.s s.a 9 5. 1 4.2 6-1 6.1 6 .? ?.1 5.6 5-6 2 . a 2 .a a .a 5 .9 10 5 .3 s .o 6- 1 6 · 1 6 .6 6 .9 5 . 6 5 .1 2 . a 2 . 2 9.0 5- 4 

11 ;; .s s .o 6 -2 6.2 6 .2 ? .1 5 . a 1-0 2 .6 2.a 6-9 s . a 12 s .1 5.4 6.9 3 .4 5 . 9 7.4 5 -6 1.0 2 .6 2 -? 5 -3 6 .1 13 5 .2 s . a 6-1 1.6 6.1 a .3 6 . 4 2 .3 2-4 2 .9 0 5 . 9 14 s .a 4 . 1 6.1 ).9 5 .9 7 .6 5.6 4-4 2-1 3 . 0 0 6 . 2 15 5 . 3 3 . 4 6 . 1 1.6 5 . a ?.1 5 .3 4-4 4-0 3 .2 1-0 6.1 

16 5 -l 4-? 5 . 9 1-5 5.9 ?.1 5. 4 4. 5 2 .7 ?. 1 1 -5 5 .1 17 s .o 4-1 5 .9 ).5 5 -9 ?.1 5 .1 4-5 2 .a 5 .4 1.6 5 .4 l a 4.a s .o 4 . ? 1.4 5 .9 6 .9 s. 4 4 . ? 2 .1 6. 4 . 3 5.6 19 4-a 5 .2 4-? 2 .0 5 .6 6.7 5 .9 4 .• 2 .1 5.7 4-9 6.6 20 •·a s .o 5 . 0 2 .0 5.6 6.? 5 .9 ~-6 .~ 7.1 10 7 .9 

21 4-? 5 .1 5 .9 ).4 5- 4 ?.1 5 . 6 4-4 5 .1 6-2 9.6 ?.9 22 4-? 4 -5 6 .2 1.3 6.1 a .7 •• a 5 .0 4.1 5 .a 9.2 6.0 23 4· 4 5. 1 6 . 1 1.6 6. 4 aa.s 4.4 7.0 s.a 5. 4 9 .2 a . a 24 4.2 5.9 6.1 1.5 5.9 ae.s 3 .? s .o 4.1 4.7 9. 4 9.a 25 4-5 5.6 6 . 2 1.6 ? • 4 a a 6. 0 5.1 5.1 <·a 7.a 9 . 2 

26 4-5 5 .6 6.2 1.6 6.9 &a a .? 5.1 3 .3 4-1 ? .;! a .a 27 4-? 5 . 1 6 . 2 1 -6 6 . 6 a?.S 7-1 4-1 2. ? •. s 6-7 9.4 2a 4-5 5 . 3 6.2 1 . a 6 .? a7.5 5 . 6 4.5 ~-· 6.3 ?.9 1.? 29 4-? 5 .4 5.a 1.9 ?.2 5 .6 4-2 3.0 6-4 7 -6 1 -4 30 4 . 4 5.9 5.0 1.? 7.6 5. 3 4.1 2.a 6.6 ?.9 1.0 31 4-1 5.5 1.? 7-6 3.7 4-? a.3 

Month Second- Mui•u. aunlau..- Wean Runoff in root-days acre-teet 

October .. . ....•.... ... ... ... ..... . 145-5 5 .a 3 . ? 4-69 2a9 November ..... ........... ............... ... 14?-6 5 .9 3.4 4-92 293 December .. ............ . ..... .. ... ...... ... 1a2.4 6.9 4.? 5.88 362 

Calendar year 19 40 .. ·· ·· ········· ··· ···· 1 , 505- 4 g,g .s 4.U - -- ,~9_? - . -. -- - January . .... . . . . • • •O OoOooOo•• • O O• O • • • 102 . 2 6.6 1.3 :f,3Q 203 February .. . ·· ········ ··· .... • • • • • • • • • • 0 • 15? .a ? . 4 1.5 5 -64 313 March . .... •• •• oooo o • • •oO • O ••••·• · •O•• 22?.a a.? 6.7 ?.35 452 April. ..... •••• • •• •• ••• • •• • 0 • • ~ • • • • • • •• ••• 1a5. 0 a .? 3.? 6.1? 36? May . ....... ···•••OooOoOO•OO•O•••• · · · · · · · 146.3 7.a 1.0 4-72 290 June ...... . . . . . . . . . . . . . . . . . . 95.9 5.a 2.1 3.20 190 July .. .... ..... ....... .. .... ... .... ... .. 135.9 ? . 1 2.2 4.3a 270 August ..... . . . . . . . . . . . . . . . . . . . 1 91.0 10 0 6-16 3?9 September .. .. . .. . . . ... .. . . . 190.0 s.a 1-0 6.33 ~77 

"at er year 1940-41 . .. . . . . . .. ...... . . . 1 , 907-4 10 0 5.23 ~ 700 

a No gage- height reoordJ discharge interpolated. 
TULAROSA VALLEY BASIN 

Alamogordo wa te r supply near Al amogo rdo, N. Mex. 

Location .- Water-stage recorde r and rectangular contract ed we ir, l a t. 32°52 ' 35", long. 105° 

55'50" , In NWt sec . 33, T. 16 S., R. 10 E., a t l ower end or pipe l!ne , abou t a mlle 

downstr eam r rom Alamo Canyon, and 2 mlles southea st or Al amogo rd o . 

Re cords avallab l e .- Octobe r 1932 to Septembe r 1941. 

Extremes .- Maximum d is cha rge duri ng yea r, 3 .3 second-tee t Aug . 20 (gage he i ght, 0 .65 root); no flow Sept . 29 . 1932-41 : Maximum d ischarge , 6 .2 second-fe et July 8 , 1936 (gage he ight, 0 .89 root s 1 t e a nd da t um t hen In use ) ; no n ow J ul y 7 , 1933, Sept. 29 , 1941. 

Rema r ks .- Records good. Wa ter IS diverted rrom Alamo Cr eek ! or muni ci pal suppl y or Alamogord o by pi pe l! ne having one In take on Alamo Creek Just above r e nne r gag ing sta - ti on a t Wood Ranch and a s e cond Intake a t Fleming Spr ings In Duncan Arroyo, whi ch Is 

tri butar y to Al amo Cr eek about 2 mlles below fi rst Intake. 

Discharge , in second-teet, water year October 1940 to September 1941 

D~ Oc t . Nov . Dec. Jan . Peb . Mar . Apr . Nay June July Aug. Sept. 

1 1.4 1.4 1 . 4 1 . 4 1.4 1.4 1.4 1 .6 1 . 7 2 . 0 2.6 3 . 0 

2 1.4 1 . 4 1 . 4 1.4 1.4 1.4 1.4 1 . 6 1.7 2.0 2.6 3 . 0 

3 1 . 4 1 . 4 1.4 1.4 1.0 1.4 1 . 4 1.6 1 . 7 2 . 0 2 . 6 3. 0 

4 1.4 1.4 1.4 1.4 1.0 1.4 1.4 1 . 6 1.7 2.0 2 .6 2. 5 

5 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.6 1.7 2 . 1 2 . 6 3. 0 

6 1 . 4 1.4 1.4 1.4 1. 0 1.4 1.4 1 . 6 1.7 2 . 2 2 . 7 3 . 0 

7 1 . 4 1.4 1.4 . 7 1.4 1.4 1.4 1.6 1.7 2 . 2 2 . 7 3 . 0 

8 1.4 1.4 1.4 .7 1.4 1.4 1 .4 1.6 1.7 2 . 2 2 . 7 3 . 0 

9 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.6 1.7 2.2 2 . 7 3.0 

10 1.4 1.4 1.4 1.4 1.0 1.4 1.4 1.6 1.7 2 . 2 2 . 8 3 . 0 

ll 1.3 1.4 1.4 1.4 1.0 1.4 1.5 1 . 6 1.7 2 . 2 2 . 7 3 . 0 

12 1.4 1.4 1 . 4 1.4 1.4 1.4 1.5 1 . 6 1.7 2 . 2 2 . 7 3 . 0 

13 1.4 1.4 1.4 1.4 l.O 1.4 1.5 1.6 1.7 2.3 2 . 8 3.0 

14 1.4 1.4 1.4 .6 1 . 4 1 .4 1.5 1.6 1 . 8 2 . 3 2 . 8 3.0 

15 1.4 1.4 1.4 . 7 1.4 1 .4 1.5 1.6 1 . 8 2.3 2 .8 3 . 0 

16 1.4 1.4 . 6 1 . 4 1 . 4 1 . 4 1.5 1 .6 1 . 8 2.2 2 . 8 3 . 0 

17 1.4 1.4 . 6 1. 0 1.4 1.4 1.5 1 . 6 1.8 2.3 2.8 3 . 0 

18 1.4 1.4 . 9 1.4 1.4 1.4 1 . 5 1.6 1.9 2.3 3.0 3.0 

19 1.4 1. 4 1.4 1.4 1.1 1.4 1.5 1.6 1.9 2 . 4 3.0 3 .0 

20 1.4 1.4 . 8 . 6 1.4 1 . 4 1.5 1.6 1.9 2 . 5 3.0 3.0 

21 1.4 1 . 4 .2 . ij 1.4 1.4 1.5 1.7 1.9 2 .5 3 . 0 3 . 0 

22 1.4 1.4 a. 2 1.4 1 . 4 1.4 1 . 5 1.7 1.9 2 . 4 3.0 3.0 

23 1.4 1.4 d.8 1.4 1 .4 1.4 1 . 5 1.7 1.9 2.5 3 .0 3 . 0 

24 1.4 1.4 1.5 1.4 . 6 1.4 1.5 1.7 1.9 2 . 6 a3 . 0 3 . 0 

25 1.4 1.4 1. 5 1.3 . 4 1.4 1 . 5 1. 7 L9 2 . 6 a3.0 3 . 0 

26 1.4 1.4 1. 5 1.4 1. 0 1.4 1.5 1 . 7 1.9 2 . 6 a3 . 0 3 . 0 

27 1.4 1.4 1. 6 1.0 1.4 1.4 1.5 1 . 7 1. 9 2.6 a3 . 0 3 . 0 

28 1.4 1.4 1. 6 1.4 1.4 1.4 1 . 6 1.7 2.0 2 .6 a3 . 0 3. 0 

29 1.4 1 . 4 1.5 1.4 1 . 4 1 . 5 1.7 2 . 0 2. 6 a3 . 0 0 

30 1.4 1.4 .6 1.4 1 . 4 1.5 1.7 2 .0 2 . 6 3 . 0 .4 

31 1 . 4 . 7 1.4 1.4 1 . 7 2.6 3.0 

Month Second- Ma.xi•ua M1n1&u.a Mean Runort in root-days acre-teet 

October .. . .. ....... .. .. . . . . . . . . . . . -. . . . 43.3 1.4 1.3 1.40 86 

November . . .. . ....... ~ .............. 42.0 1.4 1.4 1 . 40 83 

December ... . .............. ..... ... 36.8 1.5 .2 1.19 73 

------ Calendar year 19 40 ..... ... .. ~ .. ......... 521.6 .2 1. 4 3 1.030 

J anuary . .... . . ....... .. ..• . .• . . • .. . ..• . .... 38.2 1.4 .6 1.23 76 

hbroacy .. . . . ....... . . . .....•..•..... . ..... 34.3 1.4 . 4 1 . 22 68 

Waroh . . . .........•....... . .....•..•.. , ..•.. 43.4 1.4 1 . 4 1.40 86 

April ........ . •..•.............•..•..•. . . . . H . O 1.5 1.4 1.47 87 

May . ..•• .. •.•.••....•.• . •.•...•••..•.•..••• 50. 7 1.7 1.6 1 . 64 101 

June . .. .. . . ........ . ............ . . . .... 54.3 2.0 1 . 7 1.81 108 

July . . ...... ..•..• . .•. ··········· 72 ~ 2 . 6 . 2.0 2 .33 143 

August . . . . ... . ......... . ....... . .... 88 . 0 3. 0 2.6 2 . 84 1176 

September . ............ .. ..... ... .... 83 . 9 3.0 0 2 . 80 166 

Water year 1940- 41 ...... ... ... ....... 631 . 2 3.0 0 1.73 1 , 250 

• No gage-hei ght record; c1hcharge 1ntorpola t&tl~ 

d Incompl e te gage-height record; c11.sohargo 1nterpolatoc1. 
304 t!ISCELLANEXJUS DI SCHARJE MEASUREMENTS 

In addition to the records ot stream !low obtained at gagi ng stations and reported in t he preceding pages, measurements ot now were made a the point e in the western Oul! ot Mexi co basins incticated in the following table : 

!11a cella.neous discharge measurements in western Gulf or !1e.x.1co baai.ne c1ur1ng water year October 1940 to September l94l. 

Do to 

Oct. 

Nov. 16 Jan . 7 Peb. 18 

J1ar. 7 

8 

Apr . ll 

~uly 2: Aug. l4 

Oct. 7 

Nov. 18 Ja.n . 7 

Peb . 18 Xar. 8 

Apr . :l2 

12 Play g 

JUly 24 

AU8· l4 Oct. 8 

No?. 19 Pob. 16 Jlar. ? Oct . 17 

Apr . 10 Oct. 1'7 

Apr. 10 

10 

Oct. 17 

.t.pr. 10 

Oct. 29 

Oct. 18 

Oct. 16 

Apr . 10 

10 

Oct . 10 Dec . 6 

ll 

31 Peb. 11 ftar. 19 

!loy 8 JUly 6 Oot . 2 4 

Stream 

Little Cow Crook 

•... do ..• . •••• . • 

• . •• do •... .. •.•• 

. ..• do .•. .. ..•.. 

. • . • do .. .• •• .. . • 

•••• do •••••••••• 

•••• do ••• •• ••••• 

.••• do .. ..•. .. . . • • • • do ••••••• • •• 

.•.. do ... • . • ..•. 

l1cGraw Crook .••. 

•• •• c1o ••••••••• • . . . • do . • ..••...• 

• • • • d o •••••••••• 

•••• do •••••••••• 

. . . -do .....••.•. .•.• d o •.•.• . •.• . 

•. .. do ......... . . . . • do . •.... . ••• ... -do .... ... . . . 

QuJ.clc aand Creek. 

. . . . do .. . ...... . .... do ......... . .... do .... . . ... . 

Cow Creek . . • . ... 

... . do ... . .... . . Runt or Crook •• •• 

. . •• do •••..•.• .. 

Bishop Creek . . .. 

P1elbouns Creek .. 

• • • • c1o •••••••••• 

Proeolla Creek •• 

Sandy Creek ..•.• 

• • • • do • • ..•••••• 

•••• do •.. . • • . • . • 

Walnut Creek ... . 

Brazoa Ri'fer .• .. • • • -do •• •• .•.••. 

. . • • do . •• ....•.. 

. •.• do • • ••..•••• 

. • . -do •••.•••..• • . • • do ••.•••• . •• 

• • • • c1o •••••••••• 

• • •• do ••••• , •••• 

Clea.r Pork of 

Bra zoe River . Nov. 

Doc. 

Jon. 

liar. 

AprOct. 

22 .... do •• . .. • . . . . 20 • •• -do ••••• . . ••• 

Nov. 

Doc . 

Jon. 

1\ar. Apr. 

2? . . .. do ... . ..... . 6 ••.• do ......... • 9 . .. . do •.. • ••.••• 

24 PfU.lbo.rry Creek .. 

22 ••. -do ••... •• . .• 20 •. . • do ..•..••••. 

27 • •• -do .• . •.•• . •• 

s ::: :ag:: :::::: :: 

Sab1no R1 vor Basin 

Tribut ary to or divert!.ng fromSabine River •. .... . 

. . . . do ... . . • .. • . · ·· . . . . do .... ..... ... . 

.. . . do - ...... . . . .•. • • . • do .• .. • ... . .... 

. . • . do •...• .. • . .••. 

. . . . do . ....•..•..•. . . . • do •. . •.. .. .. . . . • . . . do •. . . . ...... . . 

.. .. do . . .... ..... . . 

Little Cow Creek: .. . 

•. .. do .. ....•...•.• 

.... do .... .. . . . . .. . . • .• do • •• . • ••• • . .•• • . . • do •.•......••.• 

. . . • do- •.•...•••••• 

••• . do .••• • .•.•••• · ••.• do •• . .. ••.• . ••. 

••• -do • •..•. ••...•• 

•... do . •. .••... . ... 

Sabine River ... . .. . 

• • • • c1o •• •• ••••• . •• • 

.. .. do •• ••• ... . . • .. 

• • •• c1o ••••••••••••• 

•... do • . •.•.••..... 

• • . -do- •... . • • ··•· • Cow Cree\c. .••.•••••• 

. • . . do ... .• . . . .. • .. 

. • . -do .. ••• .......• 

Bishop Creek . ... .. . 

• • • . do •.••••..• · .•• 

Locality 

300 teet downstream trom. bridge on 

State Hl~y 87, abo'fe P!oOra" Creek aru1 i mile south ot Burkeville , Tex.. ...• do .•. . ... • •• •.••.....•••••• •• •.•• .. .. do . . .. .... .... ..........•........ 

. . •• do •. •... ••••. . .. .. ••..•. •• . •. •• •• 

.•. -do ......•.. • .. ••.••• . • . • •.• . ... •• .... do ....•.. ..... ••.. ...•.•...••• . .• ... . do . ......•.. •. . •......... . .•..... . ... do .... . .. ... ................. . . . . ••. • do . . • .•.• . . •...•.•..•••.•...•••.• • •. • do •• .• • .. ..•. . . .... .•.••.•.••.• • . 

1 m.ile upstream trom mouth a nd 2 miles southeast or Burkeville , Tex. 

.•.• do •.• .• .... •·•·•··· • · · · · · · · · · · · · · •• . . do •.• • •.•..... . •.• . •... •.. •.• ... • 

..•• do .....•.. .. .•••.•••. . • . •. . • .•••• 

•••. do ..••..... . • . . • . ...••.... ...• •.. .. .. do ...... ......•••...............• ...• do •.........•.....•.. •• •...... .. . 

. ..• do .• ••....•..•.•.... . •.• •... . . , • • • ... do ••.. ... •..•••...• ... ..•....•. .. . ... do . •. • • . •. •••.. • . • . •••• ... • .. ••• . 

Brld.ge on o. s . HighYf&y 190 , 0.7 mile upstream t'rom mouth and n ear Bon Wier, Tex. ••• . do . ...•..•• . .....•• .•. ••• .••.•... 

• .•• do . •• · • . • . ·•· · •·· · • • · · • • · · ~· • · • • · • •. -do •..•.. . . •. .•.. .• . .•.........••. 

JUst downstream trc-. b rid.ge on State Highway 63 , at Pa.rraville, Te.x . • ••• c1o •••••••••••••••••••••••••••• •• • 

Br !,~: ~ ~;:.,~r::·~e~' 3 a1laa 

•••• do ..•..• • ••..••.. . .•••.•••. .. •• . • 

sr;~:._:n t~~t~e~U:" c:!;. a:~l: upmile a northeast of Jasper, Tex. 

Bridge on State Highway 63, i aile up-- etream troa Bishop Creek a.nd 6 miles northeast or Jasper, Tex . ••• • c1o • • •• •• • •••• • •• • ••• • • • . • •••• • ••• 

Jeebea R1'fer Basin 

Angelina River ..•.. 

Jechea River . ..... . 

••.• do • ••••• ••• . ••. 

.•.• do ...•• • ••• ..• • 

.. • • do • . ••.. ..•• • •. 

Bridge on 0 . S. Highway 59, 8 mile a north ot Lut'k1n, Tox. JUst upetrea.m !rom bridge on o. s. Rlghwa.y 96, at Jasper, Tex . Beech Grove, Tex., 5 m.llea upstream 

traa mouth· 300 teet downstrea.m frena bridge on 

Br~c1g: ·o ~rs: ~~YJ;~~e~j !1f;. aoutb of Jaaper, Tex. 

Brazos Ri'fer Baa.1n 

Gult or l'texJ.eo •. ..• .... d.o . . .......... . • .• . do ••.... • .. . ..• 

•• . . do . . ..•••..••.• 

. • • . do ••••. . •....•• .••• do •..••.••••••. 

• ..• do •••. • ••••••.• 

• •• • do .•.•••••.•• .. 

Bra zoe Ri'fer ••..... 

•. • • do • . •..••••• . •. 

. • . . do . •••.••...••• • • • • do • • • •.•••• •. • • 

•• • • d.o •• •• •• • •••••• 

• • •• do • . ••••••.•••• 

Clear Pork or Brazoa River. . . . . do . ..•...... ••. •.•• do ••..••.••• . .• 

• • . . do •••••••.••.•. 

::: :ag:::::: ::::::: 

East Columbia, Tex .....• . ....•....•.• .. . -do ...•••....•......•. . • • •• . •• .. •• 

.. .. do . ..••.•.. • ...•...•.. . . • ...•...• . • •• do •..•.••. . ••••• •.. ..• . ..• ..• • . .• 

•••• do •••• •••• •• •••• •·· • • ·•· • • • • • • • •• . •.. do • . . ... ...... ..•. ......•.....•• . •••• c1o ••••••• ••• •••••••••• •• ••••••• •• 

•••• do • ...•. • .• •• . . •.•. ••.• •• •• • •.••• 

About 1 mile upatream trom l'tulberry Creek, near Hawley, Tex . . . . . do .•••.•.••...... , ..• .•. ...• . •. • • . .. • do •..••.........•... . ..• • .•• . . ••• 

•••• do • • •• • • . ••••••••••• • • ••••••••••• 

• • . • do •••••• . ...•• •.••.••. • •. •• ••..• . 

• ••• do •••••••• . ••.•••••.• •• • •••• ••••• 

About 1 mile upstream from mouth, near Hawley, 'l'ox. • ••• c1o •••••••••• • •••••••••••• • • •• ••• • 

• • •• d,o •••• • •• • •••• • •••••••••• • ••• • •• • 

• • . • do •••• •• • ••••• •••• • •••••• • ••• .••• 

::: :S~::::::::::: :::::::::::::::::::: lJl.scnarge o ma1.n cll&l\1 e.l OlU'JJ ootn Da.n.Jcs overrJ.owea. l: Field estl.mat e . 

Dieoha.rgo 

(aeo . -tt.) 

31.0 

39. 6 66.0 

60.2 

206 

66.0 

56 . 5 ?2.0 

49 . ? 46 . 0 1 6 .0 

16 . 6 ss.s 34 .6 20 .1 30.4 

39.1 

42.6 

35. 1 29 . ? 

19 . 0 

H .o 63 .4 

351 

12.? 

32 . 4 6. 49 

13 . 6 1.6? 

6.03 

1.66 

ll. 4 

24.1 

33 .5 

1,540 

t60 , 000 22,600 

32,300 

24,100 

19,500 

69 , 000 6, 660 • •• g 

4 .3? 

4.60 

12 ·• 4.?2 

5.o? 

0 

0 

l·05 

0 

8 
MISCELLANEOUS DISCHARJE MEASUREMENTS 

11lacellaneous discharge measurements 1n western Oul.t' ot l1ex1co basins during wa ter year Oc tober 1940 to September 19 41--Continued 

Colora.d.o River Basin 

Date St ream 

Nov . 27 Colorado River . . . . 

Peb . 11 South Concho River 

8 Cold Spr1.ng • . •.• .. 

Apr . 13 Old lUll Spr1.ng ... 

Peb. Shoal Creek . . . ... . Wall er Creek .... . . J\lne Onion Creek . .. . .. . 

Tributary to or diverting fromGulf ot l1ex1co ••.. ..• • 

Col orado R1 ver ..... . . . 

. . . • do . ..... . .. .. . ... . 

Barton Creek ......... . 

Colorado River .. . .... . • •• • do •••••••••••••.• . 

.. . -do ..• . •........... 

Locality 

County highway bridge, 4! m1lu: sou·thwest of Wadsworth, "rex. On William Anson Ranch, 3. 9 

miles south ot Christoval, Tex • 

On right bank or Col ora do River, lat. 30°16 ', l ong. 97°46', at Austin, Tex. 

400 teet downst r eam from ma in Barton Springs pool at Auat1n, Tex. 

5t h st. Bridge 1n Austin, Tex . •• 1st St. Brictae 1n Austin, Tex · .. Bridge on State Highway 29 , 6 

miles southeast of ustin ~ Tex. 

Guada lupe River Basi.n 

Kay 17 Guadalupe River .. . 

17 •. .. do ..••.... . .. . 

17 Johnson Cre ek ...•. 

Oct. 20 

Nov . 17 

Dec . 7 

J an . 19 Peb. 16 P'l&r. 16 Apr. 20 

!lay 17 

27 

.rune 27 Aug. 11 Sept .3() 

San J1arcos Spri.nas 

{San J'\arcos R1 ver) . . . . do ..•..... . •. . 

... . do .. . . . .....• . .... do •.. .. •.... .. ... . do .... .•. . . • . . . . . -do . .. . . •. ..... . . . . do .... . .... .. . . . . . do .. . •. • ..... . 

• • . • do •••• •••• • • •• 

• . .. do ........•.. . ... • do ......• . .... ...• do .....•...•.. 

Gul.f of Mexico .. ..... . 

•. . . do . . .... . .... ·· · .· 

Guadalupe River ......• 

. .• • do •• . . . • ........ .• 

. • . . do •.... . ...•...... 

. . . -do . ... . .• •. •. . •. . . . • . -do . ... . .•. .. .. •..• . . . . do . . . .. . •• . . • .. •.• . . . . do .... . . ...... .. . . . . . • do . ... ........ .. . . . . . . do ............... . 

.... do .... . • . • •.• . . . ~. 

. . ~.do . ...... . ..•..... . . . • do - . ... . .• •.. . ... . 

.... do .....•. . ..•..... 

Br!~: ~~~;~;::rr=Y c~~l!- ence of South and North Perks and o.6 mile east or HUnt, Tex. o. 4 mile dovmstream from 

l1ethod1st Da.m, l-3 miles up- stream from Town Creek , and 1 3/ 4 miles northwest of 

Kerrville, Tex. About li miles upstream from mouth , l i miles north ot lhgram, Tex . At San rtarcoa , Tex ............ . . . 

•... do . . . . . .. ···•·••···· ·· ··· · • ·• .. . -do .... . . . .... . •..• . . • • . . . . • •• .•. . do ...............•..•.••..•. • . .. -do ... . .... . . • .•.. . •.. • • . •..• . . . .. do ... ... ...... . ... .. . . .••. . •. ... • do .. . ... .. ..• . . • ..• . .. . . •...• •.•. do . ..... . ... . ... .. • . .. ..... . . 

. ... do ..... . . ...•• . •. . • .. ...•• . .• • ... do •. . .. . •... • . . . . . • . ... . • .. •. •... do ............ . •• .•• ..... •.. . 

. ... do . . ....•.............•.... .. 

Nuece s R1 ver Basin 

Oct. 1 4 Schwand.ne:rs Spring 

14 Live Oak Creek .. .. 

!lay 15 June 17 Jllly lQ 

Aug. 16 Sept .16 Aug. Q 

13 Sept .1~ 

. • • . do ••.. ..... ..• • . . -do .......• . .• . . . . . do . ...... . ... . • . . . do •... •..•. ... . • . . do ... . . .... .. . 

Prio River .... . .. . 

. . . • do . ... •.••• .. • . . . . do . ... . ..• ... . 

West Nuecee Ri ver . ...• 

... -do .......••. • . .... 

.... do .......... ••.. .. • . •• d.o ••••. • .••• • • • •.. ... . do ..... ......•... . .... do ......... ..•.... .... do .. . . ........... . 

Nue cee River .....••. • . 

.... do .•.........••. . • .•.. do .. ... •.. •. . .... . 

16. 3 miles northwest of Laguna, Tex. 

?i miles northwest of Laguna, Te.x . ..•. do .. ......... . .... .. ........ . .... do ..... . ... . .. .. . .. . .... . .•. . .. .. do .......................... . ... . do . ....... . .. . . . . . ...•.. . . . • . . . . . do . .. ..... . .. . .. .......•.•• .. 

450 feet downstream from bridge on U. S. Highway 90 and 10 

miles northeast of Uvalde, Tex. .... do . ... . ................ . . . .•. 

1,000 feet downstream tram bridge on u. s. Highway 90 and 10 mil es northeast of Uvalde , Tex. 

RJ.o Or ondo Basin 

May 15 Rio Grande . . . . . . . . Gulf of Mexico ...... . . 

Oct. 23 Allen Creek .. . . . . . Costilla Creek . .. .•... 

Aug. 6 

Sept .11 Ju~y 10 

. . . • do • ........... . . . . do .... .. . . . .. . 

Cerr o ditch .. . . . . . 

. . . . do •.. . . . . . • . .• •. . . 

. . . . do ....... . .. . .•. . . La.t 1r Croek . . ..•... . .. 

Jan. 31 Rio Hondo.. . . . • . . . Rio Grande . . ... ·• · · •. . 

14 Rio Lucero........ Ri o Tao! ..... •. .• ... •. 

t Fiel d est imat e. 

tat. 35°5'iP , lons- 106 004 1 , in SEt sec. 3 , T . 20 N· , R- BE. , 

at highway 'bridge at Espanola , N. l1ex . 

tat . 36 °58', long. 105 °1 5 '. above Costilla Dam and Reservo1r, about 16 miles east of Costilla, N. Hex. .... do •... .. . ...... ........... .•. .. . . do ...... ........ . . .. . . . . .... . 

Lat. 36°501 , long. 105°331 , in swt sec . 15, T. 30 N., R. 13 B., 

50 feet below head and 6 miles nor }'no.tost of Cerro , N. Hex. 

La.t . 36°32 ', long . 105°35', 100 f oot below highway bridge a t Valdez, Arroyo Hondo Grant , N. Hex . Lat . 360<.28', long. 105°3 4' , Et seo. 21 , T . 26 N., R· 13 E., 

above Bee Line d1 tch a nd 3i miles south of town of A.rroyo 

Seco, N- Mex. 

Discharge 

(aoc. -rt . ) 

t 75 , 800 

n.o 

12.5 

6 -56 3 .99 

p3,800 

105 

1Q7 

51 

106 

113 

113 

145 140 

152 

178 

246 

256 

243 

214 

16 4 

3-01 

-7 4 

15.1 

3 . 43 

1 -28 1.50 

6 -21 283 

0 

51 . 8 

22 , 300 

t .10 

2 . 47 

. 46 n.o 

13.6 

4. 47 
306 MISCE:Ll.ANEX>US Dl SCHARJE: ME:ASURE:MENTS 

l"'iscellaneous discharge measurements ln western Oul!' or J1ox1co basi ns during water year October 1940 to September 194~--Conti.nued 

Date 

Dee. 2 

23 Ja.n. 14 Pob . ~ 

25 

tla.r. 18 Apr. 8 

22 11a:y 6 

16 

2 7 

29 Juno 10 

27 

July l5 

31 Aug. 18 Sept. 2 

29 Oct. 29 

Stream 

Bee L1.ne ditch . . .. 

• • • • do • . • •••• •• • .• 

• • • • do ...•.•.. .•.. 

. • . -do .. . . .. • . • .•. . •• . do ....•.•. . ... 

• • • • do •••••••••• .. 

. . . -do . . . •.. . . .. .. 

. . . . do • .....••.• ·. . . . • do •• .••.•• •••• . . • . do •.•....•.... 

. ..• do • ...• . • . •• .• 

. . • . do ..•...• . .••. . .. -do ........... . • • • • do •••• • • •• ••• • 

• . • . do .... . •. .•..• • . . • do •.•.... ... .. 

• • • • do ••• •••••• ••• 

. . . -do •. . .. . •....• 

. . . . do •. ••...•..•• 

Sant a Pe Creek . ... 

Nov . 8 • • •• do •• ••. .•.. • . • 

Dec. ~ .•. • d o .... • •..• •.. Apr . 22 ••.. (1o • • • • ••• • •••• 

J\Ule 6 •.•• d o .... .. . .. . . . Ju1y 7 . . .• do .. . ......•.. Aug- 11 . ... do . .... . . . ... . 

Hay 1 4 Jemez Creek: . . . . . . o 

16 

1 9 

21 

2 4 

26 

29 

1 

June 3 

6 

10 

~ 

17 Oct. 17 

Nov. 28 Jan. 8 Peb. 19 

Oct. 9 

19 

19 

Nov. 28 

28 

Oct. 2 

Nov. 5 Dec- 3 J a n. 7 Peb. 4 

J1ar. 5 Apr. 17 

. . . . d o . . . ..• .. . ... • . . . do ... . ..• .••.. . . .. do .. .. ....... . • . . . do ••.........• . ... do . .. . . o • • • • •• 

.. . -do- . ........ . . • . .. do ..•. .....•.. 

• . . • do •....•..... . • .. • do ........ ... . •. . • do ..... . .....• •... do . . . ....... . • •••• do .. ..•••. .. .. 

Sa.n Jose River •. ·· 

. . • -do - .........•. • • . • do •• • ..•• •.• • . 

.• .. do •......... • . 

Pe cos R1 ve.r ... . • . . 

•• . . do • ... • •• • ••.. 

. . • -do . ... . • .. ...• 

. . . . do ..•......... 

••.• do • • • . .• . .• ... 

. . . -do ..•..•. ..• •• 

• • . . d o • .•..•..• ••. 

•• • . do ... •••.. .. • . 

. •. . do .••.•• . •. . •. 

.. .. do- ..•........ 

. .. -do ..•. . • .. •• . • 

•.. • d o ••..•.•. •. . . 

t Pield eatl.mate . 

Rlo Grande Basin--Continued 

Tributary to or diverting fromRio Lucero . .. .. .......• 

. ... do .• ... • . o ••••••• •• 

.... do ....•....... ••. .. . . .. do ..•. . .. o •• ~ • •••• • 

.•. . do ........ . . o ••• • • o 

. . . -do ..... . .• ..•. .. • . . . . .. do ........... ..... . 

... . d o . .. .. ... .. o •• •• • • 

. . . . do ...•. •. . • •o •••• •• 

.... do ..... .. . .......•. 

.. .• do- .....•• . • • .• • . • • ... . do .......•...•..•. . . . . . do ..... .•• .• ....••. . ..• do . ..... . . . ... • .•.. .. . . do . . ..... . ....• ..•. ... . do ..... ..•. . ..•.... .... do .... ... . . ..... .. . ... • do .••.....• . .•.•••. 

.... d o .. .• . .. . .... ... .• 

R1 o G_ra.nd e . .... . •. . • .. . 

.• .. do . • . ••. . •• •. . .. . .• •.•. do ..•.• .•• .. . ...... •... do •... . •......••.. . •... do .. ...... .. ... .. . . .... do ....... . .... . .•.. .... do . . ..• ..• .. . .•... . 

. .. -do .• ..... ..• . .....• 

. • . . d o .. . • ...•. . . ... ... .• •• do . ... . . • •• .••• •.•• 

... -do . •. . ...•...... ... • • • • do .. • .. • • •••••.•••. 

. . . . do •.• . •• . ..•.•. . .•. • • . -do . . ...... . . ...•... • . • . do- ...•.••.....••• • 

•... do .. •.• •. • .. ... . . . • .. . -do • ..... ... .... . • .. •• . -do •••• • •••.•.• •.• .• 

.. .. do ................ . . • . • do •.........• . •..•. 

Rio Puereo ..• ...... .. . . 

. • . -do ... ..• .. ••. . . .... . . .• do ... . . . .. .. . • ... .• ~ • • . do ... ...•.......... 

Rio Grande . ••.. • • ••.. .. 

••.• do ••••.•••• •.•. • ..• 

. •. • do . ..•.•..•• . •••••. 

. ... do ..•.•.•.• . .••...• 

. ... do ... • .• .. •• . • . • . .• 

.... do . ..• . •• • •• . . .. ... 

. . . -do •...... . ••. . ••... . . . . do . • ...• • . .• .. .. • . . •... do •.•.••. . ...•..•.. 

. . . . d o .....•.••. . • •. •.. .•.. d o .....•. . ...•...• . •. . . d o .•..•.•.••.•••••• 

Locality 

Lat. :56"281 , long. 105 °34 ', Bi sec . 21, T . 26N- , ft. 1:5 s., at head, 3i miles south or town of Arroyo Seeo, N· He x . .... do . .•.. . ..• .. ...... . •..••.. • .. .. do ..........••......•... . .•. . .. . do •.......•.. .. ••.••.••.••.• .... do ..... ..... .. • .. ...•... •... .... do . . . .. • •.• • . .. o •• o •• • •••• •• 

. . . -do . •...... .. ........ .. • ...•• .... do . .•...•...... ....... .. o ••• 

•. . . do •. . .... ... .. • .. . . .•... • .. . 

. ... do ... .. •. •...•.•....•. • .. ·• o 

.... do .• . .. o • •• ••• ••• • o •••• •• •• • 

. .. . do •. ... ..• ••. .•••.•.... . ..•• ... . do •..•...• .. . •.• •.. •....•.• • 

. . . . do ...•• .•... • ...•. •. • . ..•... . . .. do •....•...•. .• . . . . .. •• .• ..• . ... do . ... •. .. . . ...• . .. .... ... •• • ••• do . .•... .. .. . .. . ..• . ...•. •o• 

• .• • d o ••.. .. •. •. •. ... .. •• .. ...•• ... . do • .......... •.. .• o • • •• ••••• 

Lat. 35 ° 41 1 , long . 105°501 , sec. 2 4, T. 17 N., R. 10 B., above upper reser voir, 6. mile s eaet or Santa Pe , N. 11ex . • . .. do .. . . . .. . ..•.•.....••... .• • 

. ... do ..... . .... ..•. .. . •• • •... • . . . • . do .. . . .• .•.• . • . •.• •.. .••. ••. . . .. d o ........ . ... •.. . .• .. .....• . ... do. · ...... • . •... .. ... . . ... •. . . . . do . .....•.. . • . •.• ••• ...• • •.• 

Lat. 35"231 40", long . 106°32 •25", ln Sj- see. 32 , T . 14 N., ft. 

4 E., 2 miles a bove mouth and 6 .2 miles north of Bernalillo, Jl , l1ex • . . . . do . ... . ... .. . .•• .. ...•. . •.. • • . .. do •...•... o ••••••••••••••••• 

. ••. do .. .• • •••.•..• . .•••.•. : .. • • 

•••. do • ... •• ... •• . •••.•.••.••••• 

... -do • .. .•••...•.•• . .••...••. .• ..•. do .. ... • .. . .. • . .....•. ....•. •..• do . . . .• . . ... . .• .. . . . .•. •. .•. 

•••• clo •••. •••••••••••• • •••••• ••• 

• • .. do • .• .. . .. .. . ... . .. . ....•.•. •.. . do . . .. . . . • . ...... ••. •.• • .... . ... do •..•..•••...••. ••• .•• ..• •. 

• • •• do ••... . ....••....•• ... . • •• • 

tat . 35004', lons- 107 °45 1 , 1n NWt see. 25 , T· 10 N., R. 9 w., at highway brid.ge, 8 111ilea southwest o r Grants, N· l1ex. • .• • do •..... •. • . .•.. ••... ..• • . . . 

•••• do . ......•.••.• • •...•.•. . • . . 

. . .• do .. . .. · ... ··· ··· •1• • • • • • • • • • 

Lat. 35°161 , long. 105°19 1 , 1n 

SB.i see. 11, T. 12' N· , ft . 

15 E., a t Cerrito , N. 11e.x. Lat. 35 0J.4•, long. 1050J.O•, in 

sst sec . 31, T- ll N-, R· 15 B., 4 miles s outheast of 

Cerri to and 7 miles northweet 

or Anton Chico , N. l'tex. L&t. 35"14', 1ons. 105"lo• , ill 

se c . 30, T. 1 1 N., R· 16 E., a bove diversion cSam, 3 m.11es northwest or Ant on Chico , N. Hex. La t . 35°14', lona- 105°10 ', tn s&t see . 30, T - 11 N-, R· 16 & ., below diver sion dam, 3 

miles northwest of Anton Ch.ico, N. !'lex. L6 t. 35°13 •, long. 105°10', in 

NWt sec . 5, T· 11 N· , R· 17 B· , 2 miles nor thwest or Anton Chico , N. Hex . 

At f orme r gaging .station on peeo& Rlvor near Angeles, 2 ini 1es north or Texas- New Mexico State li.ne, and 8i m.lles northwe.st or Angeles, Tex • •..• do • ...••.. • ••. •• .•.. ... • . •.• 

... . do .. . .. .. . . . .. . ... .. .......• . .. . do . .. .. ..... .. .. . . •.•• .• ..•. .. . . do . ...... . . .••........ •.. . • . 

. .. . do ..... •• .... . .. . ... .. .. . .•. 

• . .• do • ...•. .... . • •..•.••• .•. . . . 

Discharge 

( eeo. -rt.) 

~. o 

t 2·0 

t1 .5 t 2 . 0 

t 2. 5 

t ·26 ~.06 

1.25 

12.6 

11 .4 

10.4 

9 . 52 10.2 

t 7 - 2 t . 5 1.81 

.~6 

t · 75 

-20 

2.28 

~.22 

2 . 12 67 . 9 19-~ 

7 . 81 

2 , 860 

1 , 830 

1,820 

1 , 270 

1,300 

1,~90 

1,170 

1, 210 

97 4 g.a 

622 

509 

451 

9.83 

7 . 79 8.5~ 

9 .8l 

86·5 

90.5 

u.9 

53 . 0 

l47 

l24 

121 136 

155 

84 · 5 76.3 
MISCELLANEOUS DISCHARGE MEASUREMENTS 307 

Miscellaneous discharge measureznents in western Oul.t ot l'texlco basins during water year Octob er 1940 to September 1941--Contlnued 

Date Stream 

Feb . 4 Pecos River ...... . 

24 

24 ttar. 6 

24 Apr. 1 

1 

2 

2 

10 

17 

~ 

!lay 8 Aug. 8 

21 Sept .u Hay 10 

Har. 25 

Aug. 15 

. . . • do ...•...•.••. 

• • • • do ••••• • .• •• • • 

. • . . do ..... •. ...•• 

•••• do ••••. . ••• • • . 

. . . . do •....••. . .• . 

•••• do •••••••••••• 

• • • • do ••••.••••••• 

• • . • do ••.•.•••• • ·• 

• • • • do •••••• . • • • • • 

• • . . do •.•.•..•...• 

• . • • do •.....••. • . • 

• • • • do •.••• . ••••.. 

. . • . do- .•• . ...... . 

• . . . do ..••.•... . •• 

• . . • do •.•••....... 

Indian Creek •..••. 

R1.o Hondo •• • •••••• 

Hope Commun1.ty 

ditch· 

Oct . 7 Grijalva ditch- . .. 

14 

21 

29 Nov. 4 

12 Dec. 6 

10 

17 

2~ 

27 Jan. 6 

14 

20 

30 

Pob . 14 

19 

26 1'\ar . 5 

18 

26 Apr. -4 

11 

18 

25 f1&y 3 

9 

16 

23 

.Juno 5 

12 

19 

26 .Tul.y ~ 

10 

18 

25 

~1 

Aug. 11 

2 0 

28 Sept. 8 

20 

Oct. 15 

26 Nov. 11 

27 

Dec- 13 Jan. 9 

19 

• . • • do ....• . •..... 

• • • • do ••• . • . •••••• 

. ..• do .. . ..••.•.•• 

• • • • do • ••• . ••••••. 

. . • • do ...• . •.• • · •• • • . . do •.••........ 

. . . -do ..•.•...• .. . 

. . . • do .•.... . . • . •. 

. • • -do- • .• • •••••• • 

. . . -do ........... . 

• • · · dO · • • • • • • • • • • • .•. . do ..••.. ... . •. 

• . . . do .•... . .•.••• 

• . . . do •.....•.. . .. 

. . . . do .•.. . . . . •.•. 

. . . . do •... •..• . •. . 

. . . -do • .... . .•••.. 

• . · .do .. ·· · · ···.,. . . . • do- . . . .. .•• . . • 

. . . . do ....•... .. •. 

. . . -do •....••....• 

. . . • do •...•.••.... 

. . • -do- . . •• .•.. • .• 

..•. do ... •. •... . . . 

. . . . do ••....••.... 

•.•• do • ... . .. ..••• 

. . • . do •.•....•...• 

. . . -do . . •..• •••.•• 

...• do •...... · .•.. . . . . do •........ . .. 

. . • • do .•....•...•. 

• • • • do •.•. . • • ••••. . .•• do .. •... • . ...• 

. •. • do . .......•••. 

• . . • do ......•....• . . . . do ...•. . . . ••.. 

. ..• do . .. .. •• . .... 

. . • . do •• . ..... .. •. 

• • . • do •.....•..•.. 

. . . . do .... . •. . ..•. 

. . . • do ....... . ... . ... • do .. .. . ...••.. 

L9 Luz ditch .. · .. . 

•••• do •••••• . ••••• 

••• • do •••••• • •• • • • 

•• . • do •. •. •••••••• 

••• • do •••• • •. • ••• • 

.... do .. .. ....... . 

. .. -do .....•....•. 

t Field estimate. 

Rio G:rande Basin--Continued 

Tributary to or d1 ve.rt 1ng f'romRio Grande .......... . 

.... do ..• . • • .. • •.•.•• 

.... do •..•. . •. . . • ... • 

. •.. do .......•.• . . .•• 

.... do . •.•. . ..••. . ••• 

••. . do . . .•....••. • . •• 

. .. . do •...••.• • •.•.•. 

••• . do .... • • ••. •.• . • • 

•... do ........•..•. . • 

... -do .....• .. •• • ••.• 

. . . . (!o •.. .. • .. • ..•... ... . do •...•.• . ••. •• . • 

•..• do ..•.••.. . ... .. . 

.... do .... . .•..• . ..•. 

. ••. do •...••.....•.. . 

. . .• do ..•.. . . ..• . •••. 

Pecos R1 ver ......•. .. 

.... do ••...•..•.•••.. 

Rlo Penasco ... .. .•. .. 

Bear Canyon .... . .... . 

.... do . . .. •..•• .....• 

...• do •.• . .. . . ••...•. 

. • . . do • •.. .......•••• 

. . . -do •.•..••. •..•• .. . .. . do . . ......•.. .. .. 

.... do ..... ~ . ..... ..• 

.. .• do ...... .. ... . ..• 

••. . do . •••...•••.•••• 

...• do ..... •. .....•.. 

.... do .•. . .. . .•...... 

. . . • do .... . ••.... . ..• 

.... do .....•......... 

. . . • do ... . . .. ..... . . . 

.•.. do .....• . ..•..• .. 

. . .. do •....•• . ••. . ••• 

..•. do . •..... .. .. ... . 

.• . -do •. • . •••• •••••. . 

.... do . .... ........ . . 

. . . -do - ....••••• . .. . • 

...• do ... . ..• .•...... 

. . . -do ........ ...•... • . . . do •.....•.....•.. . . •• do •.....•.• •.•• . • 

. ... do ...•..•..•. ..•. 

•••• do •••••. . ••• •• ••. 

• ..• do .... . ....•. . ... 

.•. • do- ••.••••••••••• 

. .. . do .•••• ..•• •..•.. 

.•.• do- . ...•• .. • .•... • • . • do • ••••••• . ••••.• 

.... do .. . .. ••. ..•.••. 

.... do ..•..••.•.••... ... . do .••. . • • . •. . .. . . 

. ••• do • •••••••••••••• 

. . . . do •.. .. .......... 

• • • • do •••.• .. •••••••• 

•••. do . •• . •••.••••• . • 

•.•• do •••. ••••••• . ••• 

•..• do .•. . . . . . .... . •• 

•••• do ••••••••••••.•• 

•... do . ........ . .•... 

• • •• do • ••••.•••••• .• • 

Alamogordo - !.8. Luz 

d.ltch -

•••• do ••.•••••••••.•• 

.•.• do - ......•..•. · •. . . . . do ....... ... .... . 

... . do ... . ...... • . . •. 

. . . • do . ......••.. . . •. . . . . do ••.. . • . •..... .. 

Locality 

Just downstream f r om Red Bluff Dam, 3 miles upstream !'rom Salt (Screwbean) Draw, 4-5 mllea north of Orla, T e.x • •..• do ......•..••...... .. • . . ...••. 

• ..• do •.......••...•.........••.•. 

• ••. do ••.•.••.••.•••..••..•... . ••• 

• ••. do ..••..•••• . •• .• •. • ••••....•• 

. ... do .•••.•...•.••..•.•...•.•...• 

•••• do . •.•.•... · · • · · · • · • • · · · · • · · · • • .. • do . . ...•••..•• . ...•.•.• . •••••• 

.•.• do •....• . .....•.... . ....••.. .• 

••.• do . •.. . •• . .•.•••. . ..•...•••.• • 

•••. do • .••.•.....•.••.. . •.. .....•• 

..• . do ..••..... •. •... . ....•..••.•• 

••.• do •••••••••••••••..•.••. .. . •• • 

•.•• do .•.••....••......•.. • . .•. .. • 

•••• do - ••••• . .• ••••••• . ••••••••••• 

... ·"0· ...... .... ... .. . . ..... . .. . . Lat. 35°42' 25•, l ong . 105°4l'OO•, 

1.n NBf SOC· 17 1 T· 17 N- 1 ft. 12 g., at mouth, 600 teet below 

~J1~ !i~;;o~o~~h p~~o;e~~=~r N· Xex. · 

tat. 331D23 ' S0", long. 104° 1' ~0" 

at Albuquerque St. Bridge 1n 

Roswell, N. 11e.x. 

Lo.t. 32 °49 ' 40", l ong. 104°51' 50" , !.n SBt sec. 20 ~ T. 17 s. , R· 20 E., 8 miles west ot Rope, N. Hex. 

tat. 32 °531 ~ long· 1080001 1 1n SBt sec. 29~ T. 16 S-~ ft. ll w., 100 

feet above bridge on State tugh- way 167, 2 mJ.les north,.,eat or 

l1imbre!l, N · Xe.x . •••• do •••••••••••••••••••••••••• • • 

..• . do •••......• . ...•.....•..••••. 

••.• do •..•.•..••••.. . .. .. ..•..• . •• •... do . •. . ....• • ..•.••.. . .••.••• . • 

• • •• do ••• . •.•.••••••••• • •.•••••• • • 

... -do • .... .•• ..........••..•..•.. 

•.•• do . . ••...•....•...... . ....•. . . 

. .• . do .•......•••..•.•••.•• • • ••••• ... . do •...•.•. .. .....••. .••••....• 

.... do •..... . .. • •. •• ••••• •. .•.•. . • 

•• .• do ••••••.• .• . .. •••• •••••••••• • 

•... do •.•...•.. •·•···•·•· ·· ·•···•• ..•. do •.••..•.. . .•... •••. ..... •••• 

. . .. do •........•.... . .•...... •.•. . 

. ..• do .....••.••.•. ..... • .• .... . .• 

..•• do • . •• . ••••• • ••••••••. ••.•• ••• .... do .... .• • . . . ..•.....•.. . •. . •.. 

•••• d o ••. • ••••••• •••• • • · • • • • • • • • • • .... do .... •• • .. . .•... ... •..•. . •.•. 

. ... do •.. . . .•..•..•..••.... • .. .. • . 

... . do . ... .• . • • • • ..• •• •••... . .••.. 

•••• do ••••.•••••••••••••••••••• • •• 

• ..• do •••• . • •• . •••••••• . •• ••• . •••. 

•••• do •.•••••••.•• •• •••••••••••••• ...• do . . .•.....•...••..•.•... ·.• . • 

•••• do •••••••••••••••••••••••• . ••• 

.... do •.•..••. . •••••••. · •• •••···• . •.•• do •••.••••••••• • .•••••••• ••• . • 

•••• do- • •••••• • •• • •• • ••••• • •••••• • •.•. do •..•.••..•.•..•.• · • · ..•. • . • • .... do . .•..•.•.•••..•....••• . •.••• 

. •.• do •••••••••••.••••••••••••••.• 

••• • do •••••••••• •.• •• . • ••• •• · • • ••• 

••.• do ..•..•.....•.•. ·· • •• ·· ·•· · · • • • .• do ••••••••• . ••••• . • • • ••••••••• 

•••• do •••••••••••••••••••• . ••• •••• 

.. . • do •...•...• . .... . .••. . • .. · ·.•• . ••• do . .•.•.•....••.....•...••..•• 

..•. do . .•..•.• . . • . ..... . .•....... , 

•.•• do •••• . ••.••••.••• . •••.••••• • • 

.••• do ••• .••••••••••.•••• •• ••• • ••• 

..•. do ..••.. ... ..•.•.............. 

sw!t s~~~d~st !11!5 a!~t ~; ~ ~~ and 6 miles north of A~amogordo , 

N· Hex. 

•... do- •.. ... .•... ·.•• .. •·· · •.·••• 

.... do ...... . .. . ·•··· • ·•·•··••· · ·· .. . • do •••••• •• ••.• • •• • •••••••••••• 

.... do ....•• ...... ..••• ···· .•.••. • .. • • do ••.••• . • • . .. •••••• • •• • •.• . •• 

.... do •. .. . .....•...••.....•. · .... 

Discharge 

( ooo.-t't .) 

Q.74 

45.4 

73.0 

1-~9 

. 84 

128 

168 

~9 

46~ 

555 702 

126 

43-5 

444 

252 

256 

45-8 

157 

80.7 

0 

0 

0 

0 

0 

0 

0 

0 

0 

.51 

. 05 

-04 

. 02 

.02 

-10 

-06 

-01 .o1 

. 02 

.os 4 

.24 

. 14 

.06 

.04 

-27 

-10 

. 20 

-16 

.09 

-01 t -01 

-19 

t-01 

-18 .22 

-01 

-02 

0 

.30 

0 

-05 

-06 

.so 

1-04 

-82 

.94 

1-12 

-89 2 -24 
308 tflSCELLANEOUS DISCHAroE MEASUREMENTS 

J11eeella.neoua diaeharge measuraments in weatern Ou1t or 11ex1co bae1ne during wat er year October 1940 to September 1941--Continued 

Date Stroam 

Peb. 9 La Luz ditch ..... . 

1'\ar. 7 

29 Apr . 16 !lay 9 

29 JUne 19 

JUJ.:r 12 Aug. 9 

22 Sept . 13 Oct. 9 

25 Nov. 19 

Dec. 3 

Jan. 8 Sept . 12 

• • • • do • •••• • • . •• •• 

. • . • do •• ..• ••••... 

• • • • do •..••• . •.••• 

• • • • do •••••••••••• 

• • • • do • • ••• . • . ••• • 

•• • • do •...••.•.•.• 

• • • • do •••• • ••••• • • 

•••• do ••...•.....• 

. . . . do •.. ... . ... . . • . • • do .. .. . .• ~ ..•• 

Rock Quarry Draw . . 

• • • • do • • • •• • • • • •• • 

• • • od.Oo o o • • o o o o o o o 

...• do . .......... . 

...• do • •.. ....• . •• 

Phantom Lake 

Springs. 12 G1t!1n Sprlngo . . .. 

l2 Sa.ragosa Spr1nga .. 

Oct. 15 P1ud Springe (nud 

Crook). 15 Pinto Springs . .... 

Rio Ora.nde Sasln--Cont1.nu8d. 

Tributary to or di vertlng .f'romAlamogordo-I.e Lur. 

ditch. 

•... do ....... . .... . . . ... . do • ..... ... . ..... ... . do .......•..•.• . • . . . . do ........... . .•. 

.... do . . . ....•. . ..... . . .• do .........•..... .•.. do ........ . •. ... • . . .. . do . ....... ...... . . . . . do ...... . ..•..... . .. . do ....... ....... . 

Pecos River ........ . . 

.... do . .. ....•... . . . . •••• do •• • .• ••• • •••• •• 

••• -do ••••••••••••••• 

. . . . d o .... .. ........• 

Phantom Lalco Irriga - t ion Syotsa Canal. 

X&in canal or Reeves County wat er Improvement 01str1ct No. 1 . Toyah Creek ......... . 

Sycamore Creek ...... . 

Pinto Cr eek . . ....... . 

Locality 

sw~t s~;~d~ t !i1!5 e~~f :r ~ ~~ and 6 miles north ot' Alamogordo, N- J'lex. .. .. do . .......................... · .... do •.............•............. . . . . do ..•....•.•. •. . . . . • • . •.••..•. •••• do ••••• .•••• • .• ••••••••••••••• 

. ... do . .... . . . •• .. .. .... . . .... .. .. 

• ••• do ••••••••••••••••.••••.•••••• 

•... do ........•.. . ..•.... . .. . .. • . . . . .. do ... . . . ..... . ...... . ........ . •••• do •••••••••• , ••••• •••••••••• •• 

•..• do . ..... . .........•........... 

JUst upstream rrom Barstow drainage ditches 2, :S, and 4, near 

Be.rstow, Tax . . . . . do ................... . . .. •.•. • .... do ..... . .... . . .... .. ......... . . . .• do .... . . •............ . ... . .... . ... do •... . ........ . .. ........... . 

At source, near Toya.hvale, Tex . .. . 

In middle or boundary line sec. 20, bl.k. l:S (HO\Uiton & Grew.t Northern Railroad survey) at Toyahvale, Tax· In SW! see. 37 , blk. 13 (Houston & 

Groa t Northern Railroad survey) at Balmorhea, Te.x. 

16 miles northwest ot Brackettville, Tex. 7j- miles northwest or Brackettville, 

TOll: · 

! ~~ r:=;;:~:~ waste from Barstow Irrigation District No. 1 Canal. 

Discharge 

(ooo.-tt . ) 

0-92 

. 73 

1 -24 

1-04 

1.23 

.89 

1.05 

.72 

1.26 

1-H 

.93 

tl-4 

f1-1 3 

f1- 01 l- 81 

tt- 5 19.7 

5-57 

4.97 

.96 

3.80 
INDEX 

Accuracy of field data and computed result• ........ . .............. . . Ac equia_ lladre (diverting t'rc_111 R1o 

Grande) at Tao a, 11. Hex ••• , .• ••.• 

monthly d1 version thr ough .... •.• . ••. Aoequ1a lladre, 11. llex. 1 ( d1vert1ng t"rom Rio Teeuque monthly diverelon through •.••..•••.••... Aooquia J1ed1o, lf. l'fex., monthly 

d1 vera ion throu.gh •.• • •• • ••.••••• Ace quia Rincon, N. l1ex., monthly d1vore1on through .•• . ••..•...... Acme, ll. !'lex., Pecos River near •. • • •. . 

Acomita Reservoir OUtlet, N. t!ex . , monthly dlvera lon through • ••..•• Acre-toot, de fin! tion ot . ••..... .... .. Agone loa other than Geological Survey, recorda collected by •••• . .•••••• 

J..lamogordo-L& Luz d1 tch at La Luz, H. Hex •••••••• • •••••••••••••• • •• 

Alamogordo Reservoir, N. Mex., conPage 

3-4 

218 

225 

243 

243 

239 

269 

261 

l 

9-11 

302 

tonto or .. ........ . .. .. ....... .. 281-282 Alamogordo wa tor supply near Alamogordo, N. l1ex •.• • ••.•• . •.•• Alamosa, Colo. 1 Rio Grande at •. . .. . •.. Alamosa Creek above Terrace Reservoir, Colo •. •...... •... . ......•. 

below Terrace Reservoir, Colo ...... . Alamosa River near l1.ontlcello, N. l1.ex. Alcalde ditch, H. l1.ex., monthly d.lveralon through •.. •..••... .. •. A.llen Creek, H . l1.ex. , discharge 

mea S\lrementa ot . . ... . .... . ..... . Alto, Tex ., Angelina River nea r ...... . A.ngelina River at Borger, Tex • •.. .. . •. near Alto, Tex •• . . . .. • .. • .. . • . .... . • near Lu.tlcin, Tex ..•.• •...•.•.•..... . 

Anton Chico, N. J1ex., Pecos River nea.r Antonio Pecos ditch, N. P1ex., monthly 

303 

163 

188 

189 

263 

225 

305 

3 4 

36 

34 

35 

265 

d1 version through. • . . . . . . . . . . . . • 250 

Aquilla Creek near Aquilla, Tex .. ..... 85 

Arrey, N. Max., Cabello Reservoir near 175 

Arroyo Hondo, N. Max., Rio Rondo at... 214 

Arroyo Seco, N. !'lex., Rio Lucero near.220,221 

Artesia, N. 11ex .• Pecoe River near.... 271 

Asherton, Tex., lfuecea River near.. . .. 149 

Aspermont, Tex. 1 Double Mountain Pork ot Brazos River near •........... Sa lt Fork or Brazos River near • ...•• Atascosa River at Whitsett, Tex ...... . A.ttoyac Bayou near Chireno, Tex .....•. Austin, Tex., Barton SprJngs at ....... Colorado River at . . ......... . ... ...• X&rahall Ford Reservoir near . .... . . . 

Ballinger, Tax. , Colorado Rl ver at . •.. BJ.m Creek at •..•• •..• ..•. .. •.•••••• . 

Barranco Alto ditch, N. Mex., monthly diversion through •.............. Barton Sprins:s at Auatln, Tex ... . .. . . . Basile, La. , Bayou Ne~:pique nea.r ..... . 

Bayou Dee Cannes near Eunice, La •• •••• 

Bayou Nezplque near Basile, La .••..•. . Bear Oan,-on near Hl.mbres, N. Hex . , . . .. Bee Line ditch, N. Max. , discharge 

66 

79 

158 

~8 

125 

101 

100 

97 

106 

239 

125 

13 

l4 

13 

300 

meaaurementa of.. . ......... . .. .. 306 

Belton, Tex. , Leon River near......... 88 

Braclcettv1lle, Tex., La e Moras Springe at ••..••..•••• .. ••••••• • 

Bra¢1 Creek at J}rtdy. Tex . •• . ..• . ..••. 

Bra,ya Bayou at J:louaton, Tex • .. • ..... .• Brazos River at Ri~nd, '!'ex., • .. . •. , at SeJlDOur, 'rex •.• . •..• • .. .. , .•.. .. • at Waco, Tex • . . • . .. .. .. • . .•...•.•..• 

Clear Forlc ot, at Port Grlt'tln, Tex. at 'Jru.8ent, 'fe.x •••••••• • •• • ••• • ••• • 

discharge mea"Urement• of •..•.•.. • near Crystal Palla, Tex . •.• . ....• , d.leoharge measurements or •..... . ..•. Double Mountain Pork of, at Lubbock, Tex •• ... .•... . ...•. .. . .. . . . ....• near Aspermont, Tex • .. . .••....•.. • nea.r Bryan, Tex . ••. ............•. • . . near Glen Rose , Tex •. .. .•. • . . . ....•. near Hempstead, Tex ... .. .. ... •. . . ..• near l'larlln, Tex .. .. .• . . ... . . ... .• . • 

near Palo Pinto, Tex .....•...... . ... near San Pelipe , Tex .......••....... near South Bend, Tex • .. . •.......... . near Whitney, Tex •..... . ..... . ... . •. Sa.l t Pork of, near Aspermont, Tex •.. Brazoa River Basin, Tex ., diacharge 

measurements in ... . ......•..•... 

BJ:~!~;~;:;i~~r:~~~~~ 2~:; ~. ~~~i .. near Fulshear, Tex ............. . Bridgeport, Tex., Big Sandy Creek near Brownwood, Tex., Pecan Bayou at •...... 

Bryan , Tex., Brazos River near ... ... . . Bucbana.n Reservoir near Burnet, Tex ..• Buffalo Bayou at Roue ton, Tex .•.. . .... Bundick Creek near Dry Creek, La, • • • •• 

Burnet, Tex., Buchanan Reservoir near. 

Caballo Dam, N. Max., Rio Grande belo" Caballo Reservoir near Arrey, N. J'lex •. Cajon Gra.n¢e d1 tcb, N. l'lex., monthly diversion through .. .... . ....... . 

Calallen, Tex. , lruecee River at ... •. .. 

Calcaaieu River near lClnder, La •• • •••. near Oberlin, L.a ••••••••• • •••••••••• 

Calcaa1eu River Ba aln, La., gaging- station recorda 1n •••••• ••• • • ••• 

Calliham, Tex. 1 Frio River at •. . . . .•.• Cameron, Tex. , Little River at . ..... . . Ca nyon d1 tch, N. Mex . , monthly diver- olen through •••• • • •• ••••• . •••••• 

Capulin, Colo., La Jara Creek near . .. . Carlsbad, N. 11ex., Pecos River at •. . • . Carlsbad, Tltx. , North Concho River near .... ........ .... .... ... • . •.. 

Camero Creek near La Ga rita, Colo .... Carrollton, Tex., Elm Pork of Trinity River near .... ... ... . •..• , •.•... 

Carson Reservoir near Stong, N. Nex •.. Casa Blanca, N. Mex ., New Laguna ditch wasteway near .............•..... San J ose River near ................• Ca ea Blanca ditch, N. Mex., monthly diversion through .•. . . .........• Casias Creek near Costilla, N. M:ex . •. . Cedar Creek near Mabank, Tex . . ....... . Cerro , N. l1ex., Latir Creek near . ... . . Cerro ditch, N. l1ex., discharge 

Bernardo, N. l1ex., Rio Puerco near . ..• 252-253 measurement of . ...•........... . • 

B1g Sandy Creek ( Sa b1ne R1 ver Bu1n) Chambers Creek near Corsicana, Tex .. . • 

near Big SandJ, Tex •... 27 Chamita, N. l1e.x., Rio Chama near . ... .• . ..•..... Blg Sandy Creek ( Tr1n1 ty Rl ver Bao1n) near Bridgeport, Tex ... ........ . Bishop Creek, Tex. , diacharge me aaurement or •......... .. ....•. 

Bla.nca, Colo., Trinchera Creek near . •. Blanco River at Wimberley, Tex ....... . 

Bluewater Creek near Bluewater, N. Mex • ............ . ... . ..... .. . Bon Wier, Tex., Sabine River near .. .. . 

Chamlta ditch near Chamlta , N. Max ..•. 49 Che r okee Bayou near Bld.ervll le, Tex .. . 

~04 

193 

137 

254 

24 

Chireno, Tex., Attoyac Bayou near • ...• Christoval, Tex. , South Concho Irrigation Co. 1 a canal at ... . . .• South Concho River at .............. . Cibolo Creek near Palle City , Tex • .. . • 

Clear Creek below Continental Reser- voir, Colo ... ............... . •.. 

309 

Page 

317 

120 

6~ 

78 

67 

73 

82 

81 

304 

83 

~04 

65 

66 

75 

7l 

76 

74 

70 

77 

68 

72 

79 

~04 

65-95 

94 

49 

116 

75 

100 

62 

18 

100 

176 

175 

243 

153 

16 

15 

15-18 156 

89 

239 

190 

272 

115 

186 

51 

219 

261 257 

261 

208 

54 

210 

305 

55 

229 

233 

28 

38 

lll 

107 

144 

177 
310 INDEX 

Clea r Fork. Se e Brazos River, Clear Fork of. Clea r Pork. See Trinity River, Clear For k of. Cleveland, Tex . , F..aat Pork of San 

Jacinto River near . . .. . ... . . . .. . Clifton, Tex ., North Bosque River near Cochiti, N. Hex., Rio Grande at .••..•• 

Cold Spring, Tex . , discharge measure - ment of • .. .••.. ... • . •..•.....• •• Cole to Creek near Victoria ., Tex .... . . . Colorado River at Austin, Tex •.•.•.... at Ballinger, Tex ...........•...... . at Columbus, Tex.~ .•.••... . ...•...• at La Gl"8nge , Tex ••....•......•.•• . . at Robert Lee, Tex .. . ........ .. .... . at Smithville, Tex ..... . ........ .. .. at Wharton, Tex ....... . . . ....... . .. . at \o!inchell, Tex ...... .. •.. .. .....•. dis charge measurements of •....• •.... near San Saba , Tex . . . . ... ........ 99 , 

Colorado River Basin, Tex., die -

charge measurements in •.. . •••.•• gaging- stati on recorda 1n .••• ••• • • •• 

Columbus , Tex. 1 Colorado River at •.••• Comal River at New Braunfels, Tex • .•• . Comanche Springs at Port Stockton, Tex •. •. ..•• . . .• . . . . . . •••• . •.•.• • 

Comfort , Tex . , Guadalupe River at .. ••• Communidad ditch, N. Mex., monthly diversion through •...• . . ..•. . . • . 

Computations, accuracy of results or . • Concan, Tex., Frio River at .••.•. . • .•• 

Concho River near Paint Rock, Tot ... . • near San Angelo, Tex •.. . .. . ... . ..•.• 

Conejos River at Platoro , Colo • .• ...•• near La Sauses, Colo •........ . .. • . . • near l1ogote, Colo ..•..... .. . •.. .• ..• 

Conroe, Tex., West Pork o r San Jacinto 

Page 

61 

86 

169 

305 

139 101 

9 7 

104 

103 

96 

102 

105 

98 

305 

;>1.1 ,£ 

305 96-126 104 

134 

295 

130 

239 

3 - 4 

154 

110 

109 

1 97 

199 

198 

Diboll, Tex., Ne ches River near . .. . .. • Dixon, N. Mex., Qnbudo Cr eek at .. ..... Domingo, N. Mex., Sa n Felipe east alde acequia near .•.•. . ..... . .... • ••. 

Double Mountain Fork. S? e Brazos River, Double Mouiitiln Fork of . Dry Creek , La., Bundic k Creek near • .•. 

Dry Creek near Smithville , Tex • . • . • •• • 

Easte rly, Tex . , Navaso ta River near ... Edna, Tex., Le.va oa River near .. .. •.• • . Bl Ri to Creek near Bl Ri to , N. Mex • •• • El Vado Reservoir near Tierra Amarilla, N. Mex ..•. •......••... Elderville , Tex., Cherokee Bayou near. Elephant Bu tte Dam , N. Mex . , Rio Grande below .•........•. .. ...... Elephant Butte Reservoir at Elephant Bu tte, N. Mu.x •.. ..... ... . .• • .••• Elm Creek at Ballinger, Tex • .. . .. . .. . . 

Elm Pork. See Trini t y River, Blm Pork of. -

Embudo, N. Hex . , Rl o Gra nde at .•. . .••• Embudo Creek at Dixon, N. Mex .•.•..•• . Espanola , N. Mex ., San lldefonso ditch near • . ......• . ..•.•• . . . . .•.....• 

Santa Clara Creek near ...........••• 

Santa Clara ditc h near .•.. •.• . .... • . Eunlce, La. , Bayou Des Cannes near • • . . Evadale, Tex., Neches River at • . ..•.• • 

Falls City , Tex., Cibolo Creek near • • . San A.nton.lo River near ••. .• •......•• Faywood , N. Mex., Hlmbres River near •• Floods, spec ial repo rts on .•.. ••.. ...• 

For\ Garland, Colo ., Sangre de Cristo 

Pa ge 

30 

223 

246 

18 

126 

93 

128 

231 

227 

28 

174 

173 

106 

167 

223 

236 

235 

233 

l4 

32 

144 

141 

299 

9 

Creek near. . . . . . . . . . . . . • • • • • • • . . 194 

Trinchera Creek near .•...•..••...•.• 191 ,192 Ute Creek near ...... . .. . . .. .... .... ·195 ,196 .River near • •.• • . .. .. .. . • • . ... . .•. 57 Port Griffin, Tex. , Clear Pork or Continental Reservo i r, Colo., Clear Crook below •••••••••••••••••••.• Control , definition of •. • • •......•• ••. Coop era t1on , record or . .......•....• .• 

Corral ditch, N. Mex ., monthly d.ive:r177 1 

11 

sion througl'l.... .. .. . .. . . . .. . . .. 243 

Corsicana, Tex . , Chambers Creek nea.r. . 55 CoatUla, N . Hex., Casias Creek near.. 208 Costilla Creek near ••• ...•• • ..•• 205 , 206 , 207 Santistevan Creek near . .... . . . ..... . 209 

Costilla Cre ek above reservoir, near Costilla, N . Mex ••••...•....... • 

below reservoir, near Cos t1lla, N. Hex ••.. • •••• • .•.. •. •. • . .•.. . . •• 

near Coe till a, N. Mex ••• . •.•. •• .. .•• Cottonwood Cr eek near Lake Arthur, N. J'lex • .•. .• • • • •• •••.••••. •. . .•• Cotulla, Tex. , Nuecea Riv er at •• . •..• . Cow Creek, Tex., discha rge measure- mente or •. . .• . • . •• . . . •. • .•••. ••• Creede, Colo . , Rio Grande below • • .. .• • 

Rio Grande near •••••••.. • • . ••• •. •. •• Crestone, Colo., North Crestone Creek near • ••.•••. . ...•. .• . ......•..•. 

Crystal Falla, Tex . , Clear Pork of Brazos R1 ver near •••..• . . . •. . .. • 

CUba , N. Hex . , Rio Las Vacas near . • . .• CUlebra Creek at San Luis, Colo . • •• • •• below San Luis, Colo . •. . . •• . ..•. . . . • 

Cundiyo , N. 11ex., Rio Santa Cruz at ••• 

Dallas, Tex. , Trinity River at • .•• ••• • Da. ta, a ccuracy of • . .• • •• •. • • .•• • •. . •• . explanation o t . . . . .. . .. . . . ... ... . . . . De La Cruz ditch, N. Hex . , monthly diversion through •••...••••.. . • • 

De La Otra Banda ditch, N. 11ex . , monthly diversion through. • . ..• • • De Los Indios d1 tch, N. J1ex. , monthly d i version through • • . .•. . .•. . ..• • 

Del Barranco ditch, N. Hex. , monthly d1 version t h rough •.•..• •.• . •.. . • Del Norte, Colo ., Pinos Creek near . •. . Rio Grande nea r .• • . • •. .. .• . • • •• . • • .. San Francisco Creek near . .••• •• . •.• • 

Delaware River near Red Bluff, N. 11ex . Don ton Creek near Roanoke , Tex .• . •... . Derby , Tex. , Frio River near • .•. . . . • . • De vile River near J uno , Tex .••••••..•• 

205 

206 

207 

289 

150 

304 

160 

159 

185 

83 

248 

203 

204 

234 

42 

3 - 4 

1-3 

243 

244 

244 

244 

180 

161 

181 

290 

5 2 155 296 

Brazos River at • . •..••••. ••. . .• . Port PhAntom Hill Re eervoir near Nugent, Tex •... . .. • .. ... . .. . . ••• 

Port Stockton , Tex. , Comanche Springs at •..•••.•.•••.•.....•. • •.•... .• Port \.lo rth, Tex., Clear Pork of 

Trinity River at . .............. . \.lee t Fork of Tr1n1 ty River at •. . .... 

Fr io Rl ver at Calliham, Tex •..•• . • •.•. at Concan , Tex •• ..•••...•. . •..••. : . • 

discharge measurements or ••.. .. . • .•• 

near Der by 1 Tex . . ••.•. . ••.••. .•. •• • • Fulshear, Tex., Brazoa Valley Irriga- tion Co. 1 a canal nea r • . ••. .. •. . • 

Gallina a River at l1ontezUII:l8 , If , Hex ••• near Montezuma , N. 11ex ••..•••. • • ... • Ganado , Tex ., Navi~d River nea r ••..•. Geo r getown , Tex., San Gabriel River at Giff.ln Springs, Tex. , discharge 

82 

84 

295 

50 

40 

156 

154 

305 

155 

94 

284 

2 83 

129 

91 

measurement or..... . ............ 30 8 Girvi.n , Tex., Pecos River near. . ... . . . 279 

Gladewater, Tex . , Se.b1ne River near. 20 , pl.l, A Olen Rose , Tex . , Brazos River near-.... 7! Goliad, Tex. , San Antonio River at .... 142 Goose Creek near Wagon Wheel Gap , Colo •..••• . • •• .•...• .. .. . ..• .. .• Graford , Te.x ., Possum Kingdom Reser- voir near . ••..••.•••..••.•• . • . •. Orand Prairie , Tex., West Pork of Trinity River at .... . ........ .. . Grandfalls, Tex., Pecos River below • . • Gr andfalls-Big Valley Canal , Tex . , monthly diversion thr ough •.••..• Grants, N. J1ex., San Jose River near •• Grijalva ditch , N. ttex. , discharge measurements of . . •. .•••. . . . . . ••• Ouachupangue ditch, N. Mex ., monthly diversion t hrough •••• ... • . • • . •• • 

Guadalupe, N. Mex. Pecos River near ••. 

Guadalupe River at Comfort , Tex . , •.••• at.New Braunfels, Tex .•... . .•• . . .. .. at Victoria , Tex •.. . •.... . . . . • .. • .•. discha r ge me asu r ements of •• . • . . •• . . • 

near Spring Branch, Tex •••••.•••.••• Guadalupe River Ba sin, Tex., <Us178 

69 

41 

278 

291 

2 55 

307 

236 

268 

130 

132 

133 

305 

131 

charge measurements in . • • . . • . . • • 305 gaglng- sto.tlon records ln . •..•.• .•.• 130- 144 
INDEX 311 

Hagerman, N. Me.x . , Rio Peltx near •.•.•. Hallettsville , Tex., Lavaca River at ••. 

Haase, Tex., Leon River near •.•. • •••.•. Hempstead, Tex. , Brazos River near •• • • . 

Hill acequia, N. Me.x . , monthly diver- sion througtl •••...• •• ••• • .••.•••• Hondo, N. Mex ., Rio Bonito at •.. . •.•• . • R1o Ruidoso at •...•. . ..•....... . ... .. Hope Convnunity ctltch, N. Mex . , diecharge me asurement of •.•••..•• ••• Horger, Tex . , Angel ina River at • .•. . ••• Houston, Tex., Brays Bayou at •.•.••.• . • Buffalo Bayou at • •... . . • •• .. .•..••••• Whiteoak Bayou at . . ...... . •. .. . . ... . . Bubbe.rd ditch, N. Mex., monthly d1ver- s1 on througb .... . •...• . ..•••..... But.tma.n, Tex. , San Jacinto River near • . Bumble , Tex . , West Por k of San Jacinto 

Page 

288 

127 

87 

76 

236 

287 

285 

307 

36 

64 

62 

63 

243 

59 

Leon River near Bel ton, Tex •• . .••.•• • • near B.asse, Tex • • •. . • • •.•••••....••• Leona River spring flow near Uvalde, Tex .•••.•••• •. •••..••••.•..••••• 

Libe r ty , Tex., Trinity River at ....... L1 ttle Cow Creek, Tex., discharge measurements or •• . ..•••• . .•••••• Lit tle River at cameron, Tex ••...••• .• Live Oak Creek, Tex., discharge 

measurements of .••........•...• • Llano, Tex., Llano River at .••..•..• .• Llano d1 tch, H. Mex. , monthly d1 ver- sion through .. .• .. .•.... . .•.••.• Llano Frio ditch , N. Mex., monthly 

diversion through ....• . ••....... Llano River at Llano, Tex .•.•..•. .. ••• near Junction, Tex ••.. . • .. ..... . • •• • Lobatos, Colo., Rio Grande near ...... . 

Page 

88 

87 

157 

48 

304 

89 

305 

123 

239 

239 

12~ 

122 

165 River near • •• . . . •.• • ••••.••••••• • Bunter Creek, Tex., discharge measure- men ta of • ..•••.. . •••.•••• • •.••••• 

58 Logansport , La., Sabine River at • • •. .• Los Cordovas, N. Mex . , Rio Taos at ••• • Los Pinos River near Ortiz, Colo ..••.• Lubbo ck, Tex ., Double Mountain Pork ot 304 

22 

217 

202 

Indian Creek, N. Mex., ella charge measurement of ••.••• . ••...•.••.. • Indian ditch, N. Mex . , monthly diver- sion through. .• •.• ••. • • • • .••.. . .. . 

307 

222 

Brazos River at ..... .. ..... . .•.• Lu.fk:1n, TeJt . , Angelina R1 ver near • .. . • Luling, Tex ., Plum Creek near .••.•• . •• San Marcos River at • . • . •••••.•.• . .• • 

65 

35 

138 

135 

Jacksonville, Tex., Mud Creek near .••.. Ja cona ditch , N. Mex . , monthly diver- 33 HcCartys north side ditch, N. Mex., 

sion through .................... . Jemez Creek at San Ysidro, N. Mex •• .•. • discharge measurements of .•..•..•.•.• 

diversions from .•••.•.•..•••..•..••.• near Jemez, N. Mex . •.•.••...•. • . . .•.• Jemez east side ditch, N. l'tex . , monthly diversion ili.rough •.•.•••••.• • •• .. Rio Guadalupe near •• • •.•.• •. • ••.•. .. . 

Jemez weet aide ditch , N. Mex. , monthly diversion through .•••••• . •..• •• •• 

Johnson City, Tex . , Pedernales River near •. .. ..• •..•...•. • . ..• .. •.... • 

John eon Creek, Tex., dlscharge measure- ment or •..•• . .••....••••...• .• •.• Juan Manuel ditch, N. Mex., monthly diver8ion through .......... •••••• 

Junction, Tex., Llano River near ••...•• North Llano River near ••...•••. . . . . . • Juno, Tex., Devila River near .•... .. ••• 

Xerber Creek at Ashley Ranch, near Villa Grove, Colo • .• . ••...... . .•• Kinder, La., Calcasieu River near ••• . .• Kountze, Tex., Village Creek near •.•••. 

I.e Garita, Colo. , Carnero Creek near .•• La Garita Creek. near La Garita, Colo . .• 

La Orange, Tex. , Colorado River at •••.. La Ja.ra Creek near Capulin, Colo •.••.• • Las Joyaa ditch, N. Hex., monthly d1 version through ••••••.....••••• La Luz, N. MeJt., Alamogordo-La Lur. d1tch at . .•.. . ..•................ 

La Luz d1 tch, N. MeJt., discharge 

239 

247 

306 

250 

246 

250 

249 

250 

124 

305 

222 

122 

121 

296 

183 

16 

39 

186 

187 

103 

190 

239 

302 

me asurements or • • •••.•..• . •.•••. 307-308 

La Madera, N. Mex., Rio Ojo Caliente at ••••••••.•.•. . . . ••.••••..••.•• La Sa uses , Colo., Conejos River near •• Rio Grande near •.•.•.•...• . ••••• . ••• 

Laguna, N. MeJt . , Pagua t e Creek near ••• San Jose River near •.••.• . •.•.•...• • Laguna, Tex. , Nuecea River at • • . ...••• La guna ditch , N. Mex., monthly diver- sion th.rough. •.•.•.• •. •..• • . . •••• 

Lake Arthur , N. Mex., Cottonwood Creek 

2:32 

199 

164 

260 

258 

146 

261 

near... .... .. . .................. 289 Pecos River near......... . .......... 270 

Lake Avalon , N. MeJt., contents of . . •. . 281-282 Lake Pork. Seo Sabine River, Lake 

Pork or Lake McMillan, N. Mex., contents o r .•• 281-282 Lampasa s River at Youngaport, Tex..... 90 Las Moras Springs at Brackettville, 297 

210 

127 

128 

Tex •.•• • . . •.•••... , ••.••• . ••••.• 

La. ti r Creek near Cerro, N. Mex • . . .. .•• 

Lavac a River at Hallettsville, Tex • ••. near Edna , Tex • •. . . • •.. . ••.• . •.• .. •. 

Lavaca River Basin, Tex . , ga ging-sta- tion recorda ln •. . •••.•. . •.• . •.. 127-129 

monthly diversion through ...... . McCartys south side ditch , N. Mex., 

monthly ell version through • •.• . .• 

McGraw Creek, Tex., discharge measure -

261 

261 

ments of. . • . . • • • . . • . . • . • . • • • . . . • 304 

Mabank , Tex., Cedar Creek near. . .. . . . . 54 Madera Canyon near Toyahvale, Tex ... . . 292 l'lalaga , N. 11ex. , Pecoe River near • ••• • 2'73 , 274 

l'lanassa, Colo., San Antonio River near 201 Marlin, Tex., Bra. zoe Rl ver near.... .. . 74 

J1arshall Ford Reserv·olr near Auattn, Tex • •• . •.•••.• • .• • ••• . .• • •• . •••• Mathis, Tex., Nueces Riv er near •••••.• Medlna River near San Antonio, Tex • •• • Melbouna Creek, Tex., discharge measurements or •••• . •.....•••. . • Menard, Tex ., Noyes Canal at . •. . .•...• San Saba Rlve r at • •.•.•.•..• . ... .. • • Mermentau River Basin , La. , gaging100 

152 

143 

304 

119 

117 

station records ln........... ... 13- 14 Meal ta ditch , N. Mex .. , monthly d1 ver- sion through •...• • •••.. . • • •.•.•• ltlddle Concho Rl ver near 'l'ankersly, Tex . . .•. . •.•..•••.••.•••••.••••• M.ldway, Tex. , Trinity River near ••• •• • Milam, Tex., Sabine River near . . ...••• Mimbres, N. Me.x . , Bear Canyon near . ••• Mimbres River near •••••. •••.• • •••••• Mlmbre3 River near Faywood, N. Hex •••• near l11mbrea, N. Mex •••.•..••• . •••• • Mimbres River Basin, N. Mex., gaging261 

112 

45 

23 

300 

298 

299 

298 

station records ln .. .• •••• . ••.• • 298- 300 

Mineola, Tex., Sabine River near...... 19 Mission River at Refugio , Te.x.... .. .. . 145 Mission River Basin, Tex., gaging- sta- tion record ln •..•. . • .• •. • •.. ... 

Mitchell ditch, N. Mex. , monthly d1 version through . •• • • • ••. •••••• Mocha ditch, N. Me.x . , monthly cUver- elo·n through • • •. .. ••• • .• . ..•••• • 

Mogote , .Colo., Conejos Riv.er nea.r • •.• • Monte Vista, Colo., Rio Grande near ••• Rock Creek near • ••..• .. .••...••.•••• 

Montez.uma, N. Mex ., Gallinas River at. Gallina a River near •• .•.• • .••.• . • • •• 

Monticello, N. Mex . , Alamoea River near •••••• •.. • .. • •• •• •. • ..• ••• •• J'1ud Creek near Jacksonville, Tex • • •••• Mud Spr1ngo (Mud Crook), Tox., dhcha rge me asurements of •... . . •..• 

Mulberry Creek, Tex., discharge measurements or • . • . .• . .•• • .• • , .• 

145 

24~ 

~9 

198 

162 

182 

284 

283 

263 

~3 

308 

304 

Nambe, N. Mex . , Nambe Creek. near . . . .•• 237 ,238 

Nambe Canal, N. Mex., monthly diver- sion through . .••••••.•.••. .• • • •• 

Nambe Creek at Pojoaque Bridge, near Namb e, N. Mex • . •.••...•••.... . • • diversions from . ..••. . .•.•.•• . •• . .•• near Na.mbe, N. Mex • • . •.• . .•••.••. •• • 

238 

239 

237 
312 INDEX 

Navasot:a River near Easterly , Tex •.. .• Navldad. River near o .. nad.o, Tex •••••.•• Nech es River at Evadale, Tex •.•.• , •••. near Diboll, Tex • • , • .. •••• .. • ••..•.• 

near Neches , Te-x ••••• •• • . ••••• • •.•• • near Rockland., Tex ••••••• .• •.• . ••••• 

Ro ches River Ba sin, Tex. , discharge measurements ln • .• • .•. .•••.••• .• gaglng-atatlon recorda in ....... ••. . 

Mew Braunfels, Tex., Comal River at ••• Guadalupe Rl ver at . , .•. .. . , .. . .• , ..• 

Rew Laguna d1 teh, N. l'!.ex., monthly diversion through .. •• . •. . .•. . •.• waetewa.y or, near Ca aa Blanca, N· }1ex ••••• ••••• • •• •• • ••••.••••• 

Worth Bosque River near Clifton, Tex •• Borth Concho River a t Sterling City, Tex • •• . •.••.•• . •••.. •.••.•••• •• • near Carlsbad , Tex .•... . . . • .. ....... North Cre stone Creek near Crestone, 

~0 4 

29 - 39 

134 

132 

261 

261 

86 

114 

115 

Colo. ... . .................. .... . 185 North Llano River near Junction, Tex.. 121 

Noyes Car:al at Menard, Tex. . . . . • . . . . . • 119 Nuecea River at Calallen, Tex. . . . • . . . • 153 at Cotulla , Tex .•. .. , . • • • . • . . • . . . • . . 150 ~ t Laguna, Tex.. • • • • • • • . • • • • • . • • . • . • 146 below Uvalde, Tex •... .•... .. .. .• .•.. 147-148 

dlscharg& measurements or. . . . • . • • • . • 305 n&ar Asherton, Tex...... .... . .. .. .. . 149 n ear Ma thie , Tex......... .. ........ . 152 near Three Rivera, Tex. . . . . . • . . • . • . • 151 Nuecee River Basin, Tex., gaging-staPecoe R1 ver near Orla, Tex . . .. . . ... ... p~~~ near Pecos, N. 11ex . . ..••....•...... • 1 264 near Puerto de Luna, N. Hex......... 267 near Sheff ield, Tex.. . . • . . . • • . . . • . . . 280 reservoirs on , contents or ••..... • . • 281-282 

Podemalea River near Johnson City, Tex •••..•• •. ..• ••.••. . ......•.. • Penaoco, N. Hex., Picuris ditch near • • Pueblo Creek near ... .••• .... .. .... • • 

Phantom Lake Springe, Tex. , discharge measurement or •..•.. .. .. . . ..•..• 

Picuris d i tch nea r Penasco, N. 11ex .•• • Pinos Creek nea r Del No rte, Colo . •.•. . Pinto Springe , Tex., discha rge measurements o! ••.•... •. . .. . . ..• 

Plainview, Tex., White River at ......• Platoro , Colo ., Conejos River at •.•. . • Plum Creek near Luling, Tex . ••.• ..•.•. 

Possum lUngdom Reservoir near Oratord, Tex •. ..••.•... .. ... . . .•. .. ..• • .. Poet d1 tch , H. Hex., monthly diversion through .•..•...... •. .•. ... . .••.• 

Prado ditch, N. Hex. , monthly diver- sion through •••••.••.•. . •• • •••• • Procell& Creek, Tex., discha r ge measurements or • ....•..... ....• . 

Publications on stream !lOl'f by 

Geological Survey ..•...•...•. .•• by St a te agencies • .. ........•..•. ••• Pueblo Creek near Penasco, N. Hex •. . . • Puerto de Luna, N. Hex., Pecos River near •• .. ... .... •. . ...•.•. .. ....• 

124 

225 

224 

~08 

225 

180 

~08 

80 

19? 

138 

69 

243 

222 

~04 

4-? ' 9 

8 224 

26? tion re cords in • • • • •. . •. •••••••• 146-158 Jtugent , Tex., Clear Pork ot Brazos Questa, N. Hex., Rio Colorado near •• •• River at .. ..•.. . ..•. . ••.•.. .. ... 81 Quicksand Creek, Tex., die cha r ge 212 

~04 

26 

Port Phant0111 Hill Rese rvoir near .•.• 84 mea surements of • • . ••.. • •• .. ••••• 

Qu..ltmn, Tex., Lake Pork or Sabine Oakwood, Tex., Trinity River near . ...• Oberlin, La., Calcasleu River near ••. . 44 River nea.r • . . . ....• . ..•.. . .. .... 

15 Q.wiyo ditch, N. Hex., monthly d iver- Whis key Chitto Creek near . . .•... • ... 17 eion through. . . .. . ... ... ... ..... . Old 11111 Spring, Tex., discharge mea surement ot . ..... .. ..... .... . Onion Creek, Tex ., discharge meas\D"e- ment or ........•... . .• .........• Orla, Tex. , Peco:s River near ••.. •. .•.. 

Ortiz, Colo. , Loa Pinos River near ..•. San Antonio Rive r at . •• ... •.. .•.. . ,. Ort-iz ditch, N. 11ex. ( d1 verting !'rom Nambe Creek}, mOnthly diversion through •••• .••••••. ..•.••• • •. . •. Ortiz ditch , N. 11ex. (diverting from 

Rio Pojoaque), monthly diversion t h rough • ••••••...• .• ••••.• •..••• 

Ottine, Tex. , San J'1arcos River at . ..•. 

Paguate Creek near Laguna, N. 11ex ..... Paguate Reservoir Outlet, N. 11ex., 

monthly diversion through .•..•• . Pa int Rock, Tex. , Con cho River near . .• 

Palo Pinto, T&x., Brazos River near •. . Park View, N. J'1ex., Rio Chama a t • ..•.• Willow Creek near .....•...•.•••...•. Pec an Bayou a t Brownwood, Tex ....• ~ ••. 

Pecos, N. nex. , Pecos River near • • .. •• 

Pecos, Tex. , Pecos River at .....•... . . Toyah Creek near .... •. ... . . . ..... . .. Pecos County Wa ter Improvement Dis- trict No . 2 Canal, Tex. , monthly d.1 version through •.•• . .. • .• •• Pecos County Wa te r Improvement Dis- trict No . 3 Carw.l , Tex ., month- ly d1vers1on through ... .. . •. •. •• 

Pecos River at Ca r lsbad , N. Hex . ..... . at Pecos, Tex .. ... . •. . .••• . .......•• 

at Pierce Canyon Croee~ , near 

305 

~05 

2?6 

202 

200 

239 

2H 

1~6 

260 

261 

110 

?0 

226 

230 

116 

264 

2?? 

293 

291 

291 

2?2 

2?? 

Ma l aga, !f. rtex....... . .. . . ...... 274 

at Red. Bluff, N. Hex . ...... .. ... 275 , pl. l ,B at Santa Rosa, N. Hex. .............. 260 below Grandfalls, Tex. . . . . . . . . . . . . . . 278 <11echa rge r:n eaa\lrements of ..•.•... . . . 306- 307 

d1 versions from. • . . . . • . . . . . . . . . . . . . . 291 near Acme , N. Hex . . . . • . . . . . • . . . . . . . . 269 

near Anton Chico , N. Hex. .. .. .. .. ... 265 near Artesia, N. Mex.. ....... . ..... . 271 near Girvin. Tex........... . . ..... .. 279 near Guadalupe, N. Mex.. . ... . . ..... . 268 near Lake Arthur, N. l1e.x........ .. .. 270 nea r Malaga, N. Hex.. . . .... .... . .. .. 273 

Ra_ncho ditch , H. Mox., monthly di ver- sion through . ... .•... ....... . .. . 2H Red Blutt, N. Hex . , Delaware River near........ .. ........ . ...... . .. 290 Pecoa Rlver at ...... ........... . 275, pl.l,! Red Blu.rr Rdaervoir, Tex., contents or .. ...... . ... ... . ... ... .. . ..... 281-282 Red River, N. J1ex., Rio Colorado near. 211 Reeve a County We. ter Improvement Dis- trict Xo. ' 2 Canal, Tex., month- ly diversion through .....•....•• Refugio , Tex., I'Uasion River at ... .. • • Richland Creek near Rlchle.nd, Tex •.... Richmond, Te.x . , Bra toe River at . ..••.• 

Richmond Irrigation Co . t s c anal near Richmond , Tex •. .. .. ..•........ .. Rio Bonito at Hondo, N. Hex •. . . • .... • . Rio Cham at Park Vi ew, N. Hex •. .•...• near Cha.mi ta, N. J'1ex •.... . . .. ......• near Tierra Amarilla, N. Hex •. .. ... • Rio Colorado near Questa , N. J'1ex • •... . near Red River, N. Hex ••.. . .• .• . . .. . 

Rio Felix near Hagerman , N. Mex ... • . •• Rio Grande at Alamosa, Colo •. ..•. .. .•. a t Cochiti , N. Hex . ........... ... ..• 

at Embudo, N. Mex . . .... . ..... . . ... . . a t San Acacia, N. Mex . .......•...... a t San Felipe, N. Mex ........ . .... .. 

at Sa.n Marcial, N. Mex .. . ......... .. below Creede , Colo •.••.... . .... . ... • below Ca bal.lo Dam, H. l1ex . ..• ...... • below Elephant Butte Da.m, N. l1ex • ... discharge measurement of • .•• .• •••••• 

~lvers1ona !rom . ••.... •. . ....•. .. .•• near Creede , Colo •...•. . ... •......• • near Del Norte, Colo ...•.... •. ..••• . near Lobatoa , Colo .. . . •..•..• .. • ..• • near La Sau sea, Colo •••.•. . •.. .. .... near Monte Viata , Colo • •• • ...• ... .. . 

near San Ildetonso, M. l1ex . . •. .. ..• . near Taos, N. J'1ex .. . ... .. ...•.. .. ..• South Pork ot, at South Fork, Col o .• 

21ll 

145 

56 

?8 

95 

28? 226 

229 

228 

212 

211 

288 

163 

169 

16? 

l ?l 

1?0 

1?2 

160 

1?6 

1?4 

M5 

225 

159 

161 

165 

164 

162 

168 

166 

1?9 Rio Grande Basin, Colo.-N. Mex.-Tex. , discharge meaiSUrements ln ....••• 305- 30 8 

gaging- a ta t1on recorda in ..•......•• 159-297 Rio Gua dalupe near Jeme% Springe , H. Hex •.• . . ................... .. 249 
INDEX 313 

Page Rio Hondo, N. Hex., (tributary to Pecos River) discharge measure- ment of •. . .. ......•.•....••.•. . 

near Roswell , N. Mex •... . ......... • Rio Hondo ( tributary to Rio 

Grande) at Arroyo Hondo , N. !'lex ..... .. . . . . . ..... .. ..... . discharge measurement or ... . ...... . nee.r Valdez , N. Mex .......•..••.. . . Rio Las Vacas near Cuba, N. Hex ..... . 

Rio Lucero below diversions, near Arroyo Seco , N. Hex ••. • .. ....•. 

discharge measurement of ••... . •.. .• d1 versions trom . . . . . ...•....... : .• . near Arroyo Seco, N. Hex •.. • . •... . • Rio Ojo CoJ.iente at La l'ledera, N. 11ex . .. ......... .......... . . . Rio Pojoaque, N. Me.x., diversions 

307 

286 

214 

305 

213 

2 48 

221 

305 

222 

220 

232 

from................... .. ...... 24 4 

Rio Pueblo de Tao s at Taos, N. Mex . . . 2 16 

near Tao a, N. 1'1ex. ... . . . . . ......... 215 

north channe l ot, at Taos, N. Hex.. 218 

Rio Puerco at Rio Puerco , N. Hex ..... 251 near Bernardo, N. Mex .•• . . . .. . .. . . . 252-253 

Rio Ruidoso at Hondo , N. He x . ..... . . . 285 

Rio Santa Cruz at Cundiyo, N. Hex.... 234 

Rio Taos at Loa Cordovas, N. Hex..... 21? 

Rio Tesuque above diversions, near Santa Pe, N. Mex .. . . .... . ....•. diversions from .•. •. ...... . ..... • . . near Santa Fie, N. Mex .............• 

Rio Tu1arosa , N. Me.x ....... . ....•.... Rlto Tesuque near Santa Fe, N. Mex . .. Riverside, Tex., Trinity River at ..•. Roanoke , Tex. , Denton Creek near .. . . . Robert Lee , Tex ., Colorado River at .• Rock Creek near Monte Vista, Colo . . . • Rock Quarry Draw, Tex., discharge measurements o f ..............•. Rockland , Tex., Neches River near ..•. Rockwall, Tex. , East Flork of Trlni ty 

240 

2 43 

241 

301 

2 4 2 

46 

52 

96 

182 

308 

31 

San Jacinto River, East Pork of, near 

Cleveland, Tex ... . .............. . nea r Ruft"nuln, Tex . ............. ..... . We st Fork o f, near Conroe, Tex .. .. .. . nea.r Humble , Tex ..... , ....•......•. San Ja cinto River Basin, Tex. , gagingPage 

61 

59 

57 

58 

station records ln.. ............. 57-64 

San Jose River, N. Mex. , discharge measurements of • . . ..•. • . ........• 

near Caaa Blanca, N. Hex . . ...... .. . . • near Grants, N. Mex .. .. . .. . ... . . . . .. . near Laguna, N. Hex ... . .... .. .... . .. . near San Pldel, N. Hex . 00 ... 00 ..... .. 

San Luis, Colo. , Culebra Creek at ..... . Culebra Creek below • . ... . ........ . ... San Luis Valley, Cclo ., closed basin ln, gaging-eta tlon reco r ds for 

306 

257 

255' 

258 

256 

203 

204 

streams ln .... .... . ..... . ... . ... . 183- 187 San l1arcial, N. Hex., Rio Grande at. . . . 1 ?2 

San Marc os River at Luling, Tex . ..... .. 135 

at Ottine, Tex............ . ... . . .... . 136 

San Marcos Sprlngs, Tex . , discharge measurements of . . . .... ......•.... 

~:~ ~;:~lR~~~~l~.a~ ~ :~~~: -M L diversion through . .. . ........ . .. . 

san Saba, Tex., Colorado River nea r. 99 , San Saba River at . . ......... . ....... . San Saba Ri ver at Menard, Tex ...... . ..• at San Saba, Tex . . . . . ..... .... ...... . 

San Solomon Springs at Toyahvale, Tex . • San Ysidro, N. Mex ., Jemez Creek at . ... San Ysidro ditch, N. Hex., mon thly di versi on through .. ..... . .•...... Sandy Creek, Tex., discharge measure- ments ln • . ....•. .. ........ . ... . .. Sang re d.e Cristo Creek near Port Oarland, Colo . .. . ... . .. ... ......... . Santa Clara Creek, N. Hex., d.1 versions from . . . ..... . . . . ..............• . • near Espanola, N. Mex . . .... . ..... .. . . 

305 

259 

225 

pl.l,C 

11~ 

117 

118 

294 

247 

250 

304 

194 

236 

235 

River near .. . ... .. .•......... . . 53 Santa Clara ditch near Esponola, 

Romayo r, 'fex., Trinity River at ..... . Roeser, Te.x., Trinity River near .... . Roswell, N. Mex ., Rio Hondo at Dia- mond A Ranch , near .. . ....... •. . Rullff, Tu., Sabine River near ..... . Run-ott in inches, definition of . . .. . 

Sabine River at Logansport , La . ....•• Lake Pork of, neg.r Quitman, Tu ..•• near Bon Wier, Tex . .... . ......... . . near Oladewa. ter, Tex • . . . ......•. 20 , 

near Milam, Tex . ... ... . . .. ........ . near Mineola, Tex .. ...... .. .... .. •. 

near Rullff, Tex ......... . ..... . . . . near Tatum, Tex . ... ............... . Sabine River Basin , La.-Tex., die- charge measurements ln ........ . 

gaging-station r ecords ln .... .. . .. . 

Saguache Creek near Saguache , Colo .. . Salt Pork. See Brazos River, Salt Fork or San Acacia , N. Mex., Rio Grande at .. . Soco rro main canal north at ....... . San Angelo , Tex., Concho River near .. 

South Concho River at ....... .. .... . San Anton io , Tex., Medina River near. San Antonio River (Guadalupe River Baein) at Goliad , Tex ... .....•. at San Antonio, Tex . .. ............ . 

near Palls City , Tex ....... . . . . ... . San Antonio River (Rio Gr ande Basin} at Ortiz, Colo • . .....•........• near Manassa, Oolo ............. . .. . San Felipe, N. Mox . , Rio Grande at • .. 

San Felipe, Tex., Bra zos River near . . San Felipe east side a cequia near Domingo , N. Mex ..... . . .. ...... . San Fidel, N. Mex., San Jose River near .... ... ................ ... . 

San Francisco Creek near Del Norte, Colo . .•..••..•...•.•.. • .......• 

san Gabriel River o.t oeo rRetown, TCX. 

San Ildefons o , N.Mex., Rio Qre..nde nea r San Ildefonso d1 t ch near Espanola , N .. Max ... .. .. .. .• . ..... • .•..... 

47 N. !'lox.......... .... ............. 233 

43 Santa Fe , N. Nex. , Rio Tesuque near •.•. 240 , 241 

286 

25 

1 

22 

26 

24 

pl.l,A 

2!1' 

1 9 

25 

21 

30, 

19-28 

184 

171 

262 

109 

108 

143 

142 

140 

141 

200 

201 

170 

77 

2 46 

256 

181 

91 

168 

236 

Rito Tesuque near......... .......... . 242 Santa Fe Creek near.... .. . . .. . ...... . 245 

Santa Pe Creek, N. Mex., discharge measurements or .•... . ..... . ..... . near Santa Fe, N. Mex ..•.. .... .... .. . Santa Rosa, N. l"Jex., Pecos River at ... . Santistevan Creek near Costilla , U. l'fex .... ............. .. . • ...... 

Saragosa Springs, Tex., discharge measurement or ............ . ..... . Schwandners Spring, Tex., dlscharge 

measurements ot . .. .. . . .. .... .. . . . Seal!'lfl-Paraje ditch , N. Hex., monthly dl ve r sion through ... . .... . .... •.. Seco ditch , N. Hex. , monthly diversi on through . ....•......•......•.. . • .• 

Second-feet per square m.ile , definition or .............................. . Se cond-foot , dofin1 tion of . . .. .. ..... . . Second-root-day, definition of .... .. ..• Seymour, Tex., Brazos River at .......•. 

Sheffield, Tex . , Pecos River near ..... . Shoal Creek , Tex., discharge measure- men t ot .................. . ...... . Sm ithville, Tex., Colorado River at .. .. Dry Creek nea r ...... .. .. . .........•. . 

Socorro main canal north at San Acacia, N. Hex ... ..... ... ... ........ . .•.. Somerville, Tex . , Yegua Creek near ... . . South Bend, Tex.., Brazos River near ... . South Concho Irrigation Co . 1 s c anal at Christoval, Tex •..... . . .........• 

South Concho River ot Christova~, Tex .• at San Angelo, Tex ....... . .. . . .. .. •. • 

dis charge mea surement o f . .... . . . •••.. South Pork, Colo., South Fork o f Rio Grande at . .. . ... .. . .. .•.. . .• . . • • . Spring, Tex. , Sp ring Creek near . • ....•• Spring Branch, Tex., Guadalupe Rl ver near .• . ... . ..........•.. . .......• Spring Creek (Colorado River Basin) 

near Tankeraly, Tex .. . .• •.• , ..••• Spring Creek (Sa n Jacinto River Basin) near Spring, Tex ... . ... . ....... •. 

306 

245 

266 

209 

308 

305 

261 

222 

1 

1 

1 

67 

280 

305 

102 

126 

262 

92 

68 

111 

107 

108 

305 

179 

60 

131 

113 

60 
314 

Stage-die charge rela tlon, def1n1 tlon of Sterling City, Tex., North Concho River at ............ . . ... •.......... . ,. Stong, N. Hex. , Carson Reservo ir near .. Striker Creek near Summerfield, Tex . ... Summerfield, Tex., Striker Creek near .. 

Ta.nkerely, Tex., Hiddle Concho River near ... .... ...•. ..... . . .. .. .. . ... Sprlng Creek near • • . ... .. ........•..• 

Tao s, N. Mex., Acequ1a. J1adre at ••••••. , 

north channel of Rio Pueblo de Taos at, . • , .•.••... . •.... .......... , ... 

Rio Grande near ••.•. ... ...... .. ...... Rio Pueblo de Taos at •.•.. . , ...•. .. •. 

Rio Pueblo de Taos near . .•.•••....... Tatum, Tex . , Sabine River near •.• . ..... 

Tenorlo ditch, N. Hex . , monthly diver- at on through. .....•....••... . ... , . Te~e, definition of ••.. •. •. •..•. • • . .. . Terrace Reservoir, Colo ., Alamosa 

Creek above o •••••••• o •••••••••••• 

Alamosa Creek below. , • , . o •••••••••••• 

Three Rivera, Tex ., Nuecea River near •• Tierra Amarilla, N. l1ex., B1 Vado Reaervoir near •••.•• . •••• ••••.. • ..•• Rio Clla.JDa near • •••• •• •..•••• •• •..• • •• Toyah Creek near Pecos, Tex ••••.•. •• . . • 

Toyahvale, Tex., l1aders Canyon near • ... San Solomon Springe at •• . •.•••. . . .. •• Trinchera Creek above Mountain Home~ 

ervoir, near Fort Garland , Colo . a bove Turners Ranch , near Fort Gar- land, Colo .••.• .•. ... •. .. • ... . ••. near Blanca, Colo .•............ ••.. . • Tri ni ty River at Dallas, Tex ......•.•. . a t Liberty, Tex •.••. . ..•.•.........•. at Riverside , Tex .. . ........ . . .... .•. a t Romayor, Tex ••.••..... . . • ....•...• 

Cl ea r Fo rk o f, at Fort Worth, Tex . . .• Eaet Pork or, noar Rockwall , Tex .•.•• Elm Pork or, near Carrol lton, Tex .••• near l1idway , Tex •••. .. • • ..•. • .• . . • ..• near Oakwood , Tex •••.. . ..•..•..••.•• • near Rosser, Tex •. ••••..• •• •.•.• ••• •• 

West Pork ot, at Fort Worth, Tex .•.•• 

at Orand Pra irie, Tex ............ . . Trinity River Basin, Tex., gaging-sta- tion record.s in •••••.••.••.•••.•• 

Trujillo ditch, N. l1ex., monthly dlver- alon through . . ....... .... ... ... •• 

Tu.larosa , N. l1ex . , Rio Tularosa n ear .• • 

INDEX 

Page 1 

114 

219 

~7 

37 

11 2 113 

21 8 

218 

16C 

216 

215 

21 

222 1 

lBB 

189 

151 

227 

228 

293 

292 

294 

19 2 

191 

19~ 

4 2 

48 

46 

47 

50 

53 

51 

46 

44 

43 

40 

41 

40-56 

2~9 

301 

PJlge 'l'ularosa Valley Baoln, N.llox. , gaging- • ta tion rocardo in •••.... . .•.•.• ~0 1-~0~ 

Ute crg:~ =~d~P~~lo~~~~~~?:. ~~~:. :~:~ . near Port Garland, Colo • •• • , ••.•••.• Uvalde, Tex., Leona River spring nO'ff 

195 196 

near •••••. , .•. , •• ~ •. • ••.••..•• o. 157 Nuece e Rive r below ••. o •• ••• • • ••••••• 147-148 

Valdez, N. l1ex., R1o Hondo near ••••••• •Victoria, Tex., Cole to Creek near ••••• 

Guadalupe River at • •.• . . .•.....••..• 

Villa 0 rove, Colo. , Kerber Creek near. Vi l lage Creek near Kountze, Tex ••••..• 

Waco , Tex., Brazoe River at ••••••.•..• Wagon Wheel Gap, Oolo ., Goose Creek: near •.•.•.• . .•.••••••.•.••••• . •• 

Wa ller Creek, Tex . , discharge measure- ment or .. o ••••••••• ••••••• • •• • • 

Walnut Crook , Tex., discharge measure- ment or • •••••.•. , ..•• • . ••.••.•• • 

Word County Irrigation Dlatrict No. 1 

Canal, Tex., monthly diversion throush . .........•.............• 

Ward County Wate r Improvement Distri ct No. 2 Canal, Tex., mon thly diversion through •.•.•••.. • .•.•. Ward County Water Improvement Distri c t No . 3 Canal, Tex., monthly diversion .through •• . .••...•.• .• • Wel l ditch , N. l1e:x., .monthly diversion throush .. . ..... ...... . ...••...•. West Nueces River, seepage investiga- tion of ..• .• o ••••••••••• •• •••••• 

Wharton , Tex., Colorado River at •.• . •• Whlakey Chitto Creek nea r Oberlin, La. White River at Plt~inview, Tex ••••••••• Whiteoak Bayou at Houston , Tex ••.• • ••• Wh.ltney, Tex., Brazos River near •.. . .• Whitsett, Tex .• Atascosa R1vor at • •• . • Wi llow Creek near Park Vi81'f, N. P1ex • .• Wimberley, Tex., Blanco River at •••..• 

Winchell, Tex ., Colorado River at •. •. • Work, division ot. .... ........ . ... . ... o 

scope of •.•.••.•.••.•.•••••• . •.•...• 

Yegua Creek near Somervllle,Tex • ••.••• Youngsport, Tex., ~sas River at ..• 

Zia ditch , N. Mex., monthly diversion throush .••.........•..... . ....• . 

21~ 

139 

13~ 

18:1 

~9 

73 

178 

305 

304 

291 

291 

291 

244 

1 53 105 

17 

eo 

63 

72 

158 

230 

137 

98 11-12 

1 

92 

90 

250 

0