Quality of

Surface Waters of t he 

United States 

1950

Parts 5-6

Prepared under the direction of S. K. LOVE, Chief, Quality of Water Branch 

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1187

Prepared in cooperation with the State 

of Iowa, and with other agencies

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1955
UNITED STATES DEPARTMENT OF THE INTERIOR 

Douglas McKay, Secretary

GEOLOGICAL SURVEY 

W. E. Wrather, Director

For sale by the Superintendent of Documents, U. S. Government Printing Office 

Washington 25, D. C. - Price $1.50 (paper cover)
PREFACE

This report was prepared by the Geological Survey in cooperation with the State of Iowa and other agencies by personr el of 

the Water Resources Division under the direction of:

C. G. Paulsen ............. Chief Hydraulic Engineer

S. K. Love .......... Chief, Quality of Water Branch

P. C. Benedict, regional engineer ... Lincoln, Nebr.

Ill
CONTENTS

Page

Introduction .......................................... 1

Collection and examination of samples .................. 3

Chemical quality .................................... 3

Suspended sediment ................................. 4

Temperature ....................................... 5

Expression of results ................................ 6

Composition of surface waters ......................... 7

Mineral constituents in solution ...................... 8

Silica ............................................ 8

Aluminum ........................................ 8

Manganese........................................ 9

Iron ............................................. 9

Calcium ......................................... 9

Magnesium ....................................... 9

Sodium and potassium ............................. 10

Carbonate and bicarbonate ......................... 10

Sulfate ........................................... 10

Chloride.......................................... 10

Fluoride ......................................... 11

Nitrate ........................................... 11

Boron ........................................... 11

Dissolved solids .................................. 12

Properties and characteristics of water ............... 12

Oxygen consumed ................................. 12

Color ............................................ 12

Hydrogen-ion concentration ........................ 12

Specific conductance ............................... 13

Hardness ......................................... 13

Total acidity ..................................... 13

Corrosiveness .................................... 14

Percent sodium .................................. 14

Sediment ........................................... 14

Publications ......................................... 15

Cooperation .......................................... 16

Division of work ...................................... 17

Stream flow .......................................... 17

Literature cited ...................................... 17

Chemical analyses, water temperatures, and suspended

sediment ...................................... 19

Part 5. Hudson Bay and Upper Mississippi River basins 19

Red River of the North basin ....................... 19

V
VI CONTENTS

Chemical analyses, etc. --Continued 

Hudson Bay and upper Mississippi River basins--Continued

Red River of the North basin--Continued Page 

Sour is River near Verendrye, N. Dak. ............. 19

Miscellaneous analyses of streams in Red River of 

the North basin in North Dakota .................. 20

Iowa River basin .................................. 21

Iowa River at Iowa City, Iowa ..................... 21

Cedar River at Cedar Rapids, Iowa ................ 26

Part 6. Missouri River basin......................... 31

Missouri River main stem ......................... 31

Beaverhead River at Barratts, Mont. .............. 31

Missouri River at highway bridge at Toston, Mont. . 33 

Miscellaneous analyses of streams in Missouri 

River main stem in Montana ..................... 37

Prickly Pear Creek basin .......................... 38

Miscellaneous analyses of streams in Prickly Pear 

Creek basin in Montana ......................... 38

Marias River basin ................................ 39

Marias River near Shelby, Mont. .................. 39

Milk River basin .................................. 44

Miscellaneous analyses of streams in Milk Piver 

basin in Montana ............................... 44

Yellowstone River basin ........................... 45

Yellowstone River at Miles City, Mont. ............ 45

Wind River at Riverton, Wyo. ..................... 46

Bighorn River at Thermopolis, Wyo................ 50

Bighorn River near Manderson, Wyo. .............. 56

Bighorn River at Kane, Wyo....................... 61

Bighorn River at Bighorn, Mont. .................. 66

Popo Agie River near Riverton, Wyo. .............. 71

Muscrat Creek near Shoshoni, Wyo. ............... 75

Fivemile Creek above Wyoming Canal near 

Pavillion, Wyo.................................. 77

Fivemile Creek near Riverton, Wyo................ 81

Fivemile Creek near Shoshoni, Wyo................ 86

Power line wasteway near Pavillion, Wyo........... 93

Pavillion drain near Pavillion, Wyo. ............... 96

Ocean drain near Pavillion, Wyo. ................. 100

Dudley wasteway near Pavillion, Wyo. ............. 104

Kellett drain near Pavillion, Wyo. ................. 106

Dewey drain near Pavillion, Wyo. ................. 110

Fivemile 76 drain near Riverton, Wyo. ............ Ill

Sand Gulch drain and wasteway near Riverton, Wyo. . 112 

Lost Wells Butte drain near Riverton, Wyo. ........ 115

Coleman drain near Shoshoni, Wyo................. 118

Sand Gulch near Shoshoni, Wyo. ................... 122

Eagle drain near Shoshoni, Wyo.................... 126

Lateral P-34. 9 wasteway near Shoshoni, Wyo. ...... 129

Lateral P-36. 8 wasteway near Shoshoni, Wyo. ...... 130

Poison Creek near Shoshoni, Wyo.................. 131
CONTENTS

Chemical analyses, etc. --Continued 

Missouri River basin--Continued

Yellowstone River basin--Continued Page 

Badwater Creek at Bonneville, Wyo. ................ 133

Muddy Creek near Pavillion, Wyo.................. 137

Muddy Creek near Shoshoni, Wyo. ................. 141

Tongue River at Miles City, Mont.................. 145

South Fork Powder River near Kaycee, Wyo. ...... 149

Powder River at Sussex, Wyo...................... 152

Powder River at Arvada, Wyo. .................... 156

Powder River near Locate, Mont. ................. 162

Middle Fork Powder River above Kaycee, Wyo. ..... 167

Middle Fork Powder River near Kaycee, Wyo. ...... 171

Crazy Woman Creek near Arvada, Wyo............. 175

Clear Creek near Arvada, Wyo. ................... 179

Miscellaneous analyses of streams in Yellowstone

River basin .................................... 183

Little Missouri River basin ........................ 189

Little Missouri River at Alzada, Mont.............. 189

Little Missouri River at Marmarth, N. Dak......... 194

Little Missouri River at Medora, N. Dak. .......... 197

Knife River basin.................................. 202

Knife River at Hazen, N. Dak...................... 202

Miscellaneous analyses of streams in Knife River

basin in North Dakota ........................... 203

Heart River basin ................................. 204

Heart River near South Heart, N. Dak.............. 204

Heart River near Richardton, N. Dak. ............. 208

Miscellaneous analyses of streams in Heart River

basin in North Dakota............................ 212

Cannonball River basin............................. 213

Cannonball River near New Leipzig, N. Dak......... 213

Miscellaneous analyses of streams in Cannonball

River basin in North Dakota...................... 217

Grand River basin ................................. 218

Grand River at Shadehill, S. Dak. ................. 218

South Fork Grand River near Cash, S. Dak.......... 222

Miscellaneous analyses of streams in Grand River

basin in South Dakota............................ 225

Moreau River basin ................................ 228

Moreau River at Bixby, S. Dak. ................... 228

Miscellaneous analyses of streams in Moreau River

basin in South Dakota............................ 234

Cheyenne River basin .............................. 235

Cheyenne River near Hot Springs, S. Dak........... 235

Lance Creek at Spencer, Wyo...................... 240

Beaver Creek near Newcastle, Wyo. ............... 244

Belle Fourche River below Moorcroft, Wyo. ........ 248

Miscellaneous analyses of streams in Cheyenne River

basin in South Dakota............................ 251
VIII CONTENTS

Chemical analyses, etc. Continued 

Missouri River basin Continued Page

Bad River basin ................................... 254

Miscellaneous analyses of streams in Bad River 

basin in South Dakota............................ 254

White River basin ................................. 257

White River near Oglala, S. Dak. ................. 257

White River near Kadoka, S. Dak. ................. 263

Miscellaneous analyses of streams in White River 

basin in South Dakota............................ 271

Ponca Creek basin................................. 272

Miscellaneous analyses of streams in Ponca Creek 

basin in Nebraska............................... 272

Niobrara River basin .............................. 274

Niobrara River near Gordon, Nebr................. 274

Niobrara River near Cody, Nebr................... 278

Niobrara River near Sparks, Nebr. ................ 282

Long Pine Creek near Riverview, Nebr............. 286

Miscellaneous analyses of streams in Niobrara 

River basin .................................... 288

James River basin................................. 293

James River at Huron, S. Dak..................... 293

Miscellaneous analyses of streams in James River 

basin .......................................... 294

Little Sioux River basin ............................ 295

Little Sioux River at Correctionville, Iowa ......... 295

Little Sioux River near Kennebec, Iowa............. 298

Platte River basin ................................. 301

North Platte River near Goose Egg, Wyo............ 301

North Platte River below Casper, Wyo.............. 304

North Platte River above Bedtick Creek near 

Douglas, Wyo................................... 308

North Platte River near Cassa, Wyo................ 312

North Platte River below Guernsey Reservoir, Wyo.. 316 

Platte River near Odessa, Nebr.................... 319

Casper Creek at Casper, Wyo. .................... 320

South Platte River near Kersey, Colo. ............. 321

South Platte River at Balzac, Colo. ................ 322

South Platte River at Julesburg, Colo............... 323

Bijou Creek near Wiggins, Colo.................... 327

Wood River near Riverdale, Nebr.................. 330

Middle Loup River at Dunning, Nebr................ 334

Middle Loup River at Dunning, Nebr. (Total load 

section)........................................ 337

Middle Loup River at St. Paul, Nebr. .............. 341

South Loup River at St. Michael, Nebr.............. 346

North Loup River near St. Paul, Nebr.............. 350

Beaver Creek at Loretto, Nebr. ................... 355

Miscellaneous analyses of streams in Platte 

River basin .................................... 359
CONTENTS IX

Chemical analyses, etc. --Continued

Missouri River basin--Continued Page

Kansas River basin ................................ 379

Arikaree River at Haigler, Nebr................... 379

Republican River at Trenton, Nebr................. 382

Republican River near Orleans, Nebr............... 387

Republican River near Hardy, Nebr. ............... 388

South Fork Republican River near Color ado-Kansas

State line ...................................... 389

Red Willow Creek near Red Willow, Nebr........... 392

Medicine Creek at Cambridge, Nebr. .............. 398

Sappa Creek near Beaver City, Nebr. .............. 400

Sappa Creek near Stamford, Nebr.................. 405

Prairie Dog Creek at Norton, Kans................. 410

White Rock Creek northwest of Love well, Kans...... 418

Smoky Hill River near Ellis, Kans. ................ 425

Saline River near Russell, Kans. .................. 430

Saline River near Wilson, Kans.................... 436

Saline River at Tescott, Kans. .................... 439

Paradise Creek near Paradise, Kans............... 442

Wolf Creek near Sylvan Grove, Kans. .............. 448

South Fork Solomon River at Alton, Kans. .......... 453

Solomon River at Beloit, Kans..................... 459

North Fork Solomon River at Kirwin, Kans. ........ 466

Miscellaneous analyses of streams in Kansas River

basin .......................................... 472

Index ................................................ 475

ILLUSTRATION

Page

Figure 1. Map of the United States showing basins covered 

by the four water-supply papers on quality of surface 

waters in 1950. ................................. 2
QUALITY OF SURFACE WATERS 

OF THE UNITED STATES, 1950

PARTS 5-6 

INTRODUCTION

The quality-of-water investigations of the United States Geological Survey are concerned with chemical and physical characteristics of the surface and ground water supplies of the Nation. 

Most of the investigations carried on in cooperation with States 

and other Federal agencies deal with the amounts of matter in 

solution and in suspension in streams.

The records of chemical analysis, suspended sediment, and 

temperature for surface waters given in this volume serve as a 

basis for determining the suitability of the waters examined for 

industrial, agricultural, and domestic uses insofar as such use 

is affected by the dissolved or suspended mineral matter in the 

waters. The discharge of a stream and, to a lesser extent, the 

chemical quality are related to variations in rainfall and other 

forms of precipitation. In general, lower concentrations of dissolved solids may be expected during the periods of high flow than 

during periods of low flow. The concentration in some streams 

may change materially with relatively small variations in flow, 

whereas for other streams the quality may remain relatively 

uniform throughout large ranges in discharge. The quantities 

of suspended sediment carried by streams are also related to 

discharge, and during flood periods the sediment concentrations 

in many streams vary over wide ranges.

The regular yearly publication of records of chemical analyses, suspended sediment, and water temperature was begun by 

the Geological Survey in 1941. The annual records prior to 1948 

were published in a single volume for the entire country. Beginning in 1948, the records were published in two volumes, and 

beginning in 1950, in four volumes, covering the drainage basins 

shown in figure 1. The samples for which data are given were 

collected from October 1, 1949, to September 30, 1950. Descriptive statements are given for each sampling station for which 

regular series of chemical analyses or sediment determinations 

have been made. These statements include the location of the 

stream-sampling station, drainage area, length of time for which 

records are available, extremes of dissolved solids, total hardness, sediment loads, water temperature, and other pertinent 

data. Records of water discharge of the streams at, or near, 

the sampling point for the sampling period are included in most 

tables of analyses. The records are arranged by drainage basins, according to Geological Survey practice in reporting records of stream flow.

1
QUALITY OF SURFACE WATERS, 1950

Parts 1-4; WSP 1186 

Parts 7-8; WSP 1188 

Parts 9-14; WSP 1189

Figure 1. Map of the United States showing basins covered 

by the four water-supply papers on quality of surface waters 

in 1950. The shaded portion represents the section of the 

country covered by this volume; the unshaded portion represents the section of the country covered by other watersupply papers.

During the year ended September 30, 1950, 35 regular sampling stations on 35 streams for the study of the chemical character of surface waters were maintained by the Geological Survey in the area covered by this volume. Samples were collected 

less frequently during the year at many other points. Water temperatures were measured daily at 40 of the regular sampling stations. Not all analyses of samples of surface water collected 

during the year have been included. Single analyses of an incomplete nature generally have been omitted. Also, determinations 

made on the daily samples before compositing have not been reported. Specific conductance was usually determined on each 

daily sample, and pH, chloride, or other determinations were 

also made on many of the daily samples. As noted in the table 

headings these data are available for reference at the district offices listed under Division of Work, on page 17.

Quantities of suspended sediment are reported for 85 stations during the year ended September 30, 1950. The sediment 

samples were collected from one to five times daily at most stations, depending on the rate of flow and changes in stage of the 

stream. Sediment samples were collected less frequently during the year at many other points. In connection with measurements of sediment discharge, sizes of sediment particles were 

determined at 96 of the stations. As noted under "Remarks" in
COLLECTION AND EXAMINATION OF SAMPLES 3

the table headings, suspended-sediment concentrations also were 

determined from the samples collected for chemical analysis in 

some parts of the country. The data do not provide a reliable 

basis for computing the loads of suspended sediment carried by 

the stream but may be of value for design and operation of filtration plants utilizing these stream waters. Records of there infrequent determinations are available for reference in the district 

offices listed.

Material which is transported essentially in continuous contact 

with the stream bed is termed bed load and is not considered in 

this report. All other undissolved material in transport is termed suspended sediment and generally constitutes the major part 

of the total sediment load. At the present time no reliable method has been developed for deter mining bed load on a routine basis.

COLLECTION AND EXAMINATION OF SAMPLES 

CHEMICAL QUALITY

Samples for chemical analysis were usually collected daily 

at, or near, points on streams where gaging stations are maintained for measurement of water discharge. Most of the analyses were made on 10-day composites of daily samples collected 

for a period of a year at each sampling point. Three composite 

samples were usually prepared each month by mixing together 

equal volumes of daily samples collected from the 1st to the 10th, 

from the llth to the 20th, and during the remainder of the month. 

For some streams that are subject to sudden and large changes 

in chemical composition or concentration, samples were composited for shorter periods on the basis of the concentration of 

dissolved solids indicated by measurements of specific conductance of the daily samples.

The samples were analyzed according to methods regularly 

used by the Geological Survey. These methods are essentially 

the same as or are modifications of methods described in recognized authoritative publications for the mineral analysis of water 

samples (Collins, 1928; Am. Public Health Assoc., 1946).

For those waters containing moderately large quantities of 

soluble salts, the value reported for dissolved solids is tH sum 

of the quantities of the various determined constituents using the 

carbonate equivalent of the reported bicarbonate. In other analyses the value reported as dissolved solids is the residue on evaporation after drying at 180°C for 1 hour. Specific conductance 

is givenfor most analyses and was deter mined by means of a conductance bridge using a standard potassium chloride solution as 

reference.
QUALITY OF SURFACE WATERS, 1950

SUSPENDED SEDIMENT

In general, samples were collected daily with the US D-43 

depth-integrating sampler (U. S. Inter-agency, 1948, p. 70-76) 

from a fixed sampling point at one vertical in the cross section. 

The US DH-48 hand sampler was used at many stations during 

periods of low flow. Suspended-sediment samples, consisting 

of depth-integrated samples at three or more verticals in the cross 

section were made periodically to determine the cross-sectional 

distribution of the suspended concentration with resnect to that at 

the daily sampling vertical. In streams where comparatively rapid fluctuations in transverse distribution of water discharge or 

sediment concentration are encountered at the sampling point, 

samples were taken regularly at two or more verticals to determine the average concentration across the section. During periods of high flow, samples were taken two or more times throughout the day at many sampling stations, and during periods of rapidly changing flow samples were taken hourly at sone stations.

Sediment concentrations were determined by filtration or evaporation of the samples as required. At many stations the mean 

daily concentration for some days was obtained by plotting the 

instantaneous concentrations on the original or copies of the original gage-height chart. The plotted concentrations adjusted, if 

necessary, for cross-sectional distribution with respect to that 

at the daily sampling vertical, were connected or averaged by 

continuous curves to obtain a concentration graph. This graph 

represented the estimated concentration at any time and, for most 

periods, mean daily concentrations were determined from the 

graph. When the concentration and water discharge were changing rapidly, the day was often subdivided for this computation. 

For some periods when the day-to-day variation in the concentration was negligible, the data were not plotted, and the average 

concentration of the samples was used as the mean concentration 

for the day. For certain stations, when the discharge and sediment concentrations were relatively low and varied only slightly 

from day to day, the samples for a number of days were composited and the mean daily concentrations and mean daily loads are 

shown.

For some periods when no samples were collected, daily sediment loads were estimated on the basis of water discharge, sediment concentrations observed immediately preceding and following the periods, and sediment loads for other periods of similar 

discharge. The estimates were further guided by weather conditions and sediment discharge for other stations.

In many instances where there were no observations for several days, the sediment loads for individual days are not estimated, as numerous factors influencing the quantit; °s of transported sediment made it very difficult to make accurate estimates 

of sediment loads for individual days. However, estimated sedi-
COLLECTION AND EXAMINATION OF SAMPLES 5

ment loads for missing days in an otherwise continuous period 

of sampling have been included in monthly and annual totals for 

most streams to provide a complete record.

In addition to the records of total quantities of sediment, records of the particle sizes of sediment are included also. The 

particle sizes of the suspended sediments were determined periodically for many of the stations. As much of the material carried in suspension can pass through the finest sieves, the bottomwithdrawal tube method (U. S. Inter-agency, 1943, p. 8"-90) 

was used in most of the analyses. Generally, sieves were used 

in the determination of particle sizes for sediments which were 

predominantly coarser than 0. 062 mm. Size distribution for some 

sediments was determined by a combination of sieves andpioette 

methods in which the size fraction 0.062 mm and larger was analyzed by sieves and that smaller than 0. 062 mm was analyzed 

by the pipette method (Kilmer and Alexander, 1949). Native or 

distilled water, as noted in the tables of analyses, was used as 

the settling medium. In some instances, chemical dispersing 

agents were added to the settling medium. As settling diameters 

of the clay and colloidal fractions are often affected by the chemical character of the settling medium, analyses made using native water more nearly simulate particle sizes existing in the 

stream. Results of analyses using distilled water or using a settling medium containing dispersing agents approximate ultimate 

particle sizes of the finer fractions. The concentration of sediment suspension for analysis was reduced to less than 10,000 

parts per million, where necessary, by means of a sample splitter, in order to stay within limits recommended for the bottomwithdrawal tube or pipette method. The concentration of suspended sediment used in the bottom-withdrawal tube was often 

different from the concentration in the original suspension. The 

weight of sediment used is indicated in the tables of analyses.

TEMPERATURE

For most of the stations, daily water temperatures were obtained at the time that the chemical quality or sediment samples 

were collected. So far as practicable the water temperatures 

were observed at about the same time each day for an individual 

river station in order that the data would be relatively unaffected by diurnal variations in temperature. For most large, swiftly flowing streams the diurnal variation in water temperature 

is probably small, but for sluggish or shallow streams the daily 

range in temperature may amount to several degrees and may 

follow closely changes in air temperature. The thermometers 

used for determination of water temperature were accurr.te to 

plus or minus about 0. 5°F.

Records of thermograph observations consist of maximum 

and minimum temperatures for each day, the average of the maximum daily temperatures, and the average of the minimum daily 

temperatures.
QUALITY OF SURFACE WATERS, 1950

EXPRESSION OF RESULTS

The dissolved mineral constituents are reported in parts per 

million. A part per million is a unit weight of a constituent in 

a million unit weights of water. Equivalents per million are not 

given in this report although the expression of analyses in equivalents per million is sometimes preferred. An equivalent per 

million is a unit chemical combining weight of a constituent in 

a million unit weights of water and is calculated by dividing the 

concentration in parts per million by the chemical combining 

weight of the constituent. For convenience in making this conversion the reciprocals of chemical combining weights of the 

most commonly reported constituents (ions) are given in the following table:

Constituent Factor Constituent Factor

Iron (Fe++) .......... 0. 0358 Carbonate (CO3 ") .. 0. 0333

Iron (Fe+++) ......... . 0537 Bicarbonate (HCO3 -) . 0164

Calcium (Ca++) ...... . 0499 Sulfate (SO4 ")...... . 0208

Magnesium (Mg++) .... 0822 Chloride (Cl~)...... . 0282

Sodium (Na+) ........ . 0435 Fluoride (F~) ...... . 0526

Potassium (K+) ...... . 0256 Nitrate (NO3~)...... .0161

Results given in parts per million can be converted to grains 

per United States gallon by dividing by 17.12. A calculated quantity of sodium and potassium is given in some analyses and is the 

quantity of sodium needed in addition to the calcium and magnesium to balance the acid constituents.

The total hardness, as calcium carbonate (CaCO3), is calculated from the equivalents of calcium and magnesium except for 

a few samples for which the reported values also include equivalents of free mineral acid, aluminum, iron, and manganese 

when present in significant quantities. The hardners caused by 

calcium and magnesium (and other ions if significant) equivalent 

to the carbonate and bicarbonate is called carbonate hardness; 

the hardness in excess of this quantity is called noncarbonate 

hardness.

In the analyses of most waters used for irrigation, the quantity of dissolved solids is given in tons per acre-foct as well as 

in parts per million. Percent sodium has been computed for those 

analyses where sodium and potassium are reported separately 

by dividing the equivalents per million of sodium by the sum of 

the equivalents per million of calcium, magnesium, rodium, and 

potassium and multiplying the quotient by 100. In analyses where 

sodium and potassium were calculated and reported as a combined value, the value reported for percent sodium will include 

the equivalent quantity of potassium. In most waters of moder-
COMPOSITION OF SURFACE WATERS 7

ate to high concentration, the proportion of potassium is much 

smaller than that of sodium.

Specific conductance values are expressed in reciprocal ohms 

(micromhos at 25°C). The discharge of the streams is reported 

in second-feet (See Stream Flow, p. 17 ) and the temperature in 

degrees Fahrenheit. Color is expressed in units of the platinumcobalt scale proposed by Hazen (1892, p. 427-428). Hydrogenion concentration (pH) is given as the negative logarithm of the 

number of moles of ionized hydrogen per liter of water.

An average of analyses (arithmetical or weighted) for the water year is given for most daily sampling stations. An arithmetical average represents the composition of water that would 

be contained in a vessel or reservoir that had received equal 

quantities of water from the river each day for the water year. 

A weighted average represents approximately the composition 

of water that would be found in a reservoir containing all of the 

water passing a given stationduring the year after thorough mixing in the reservoir. The weighted average of the analyses is 

computed by multiplying the discharge for the sampling period 

by the quantities of the individual constituents for the corresponding period and dividing the sum of the products by the sum 

of the discharges. Water as represented by the weighted average is less concentrated than that represented by the average of 

the individual analyses for most streams because at times of high 

discharge the rivers generally have lower concentrations of dissolved solids.

Mean daily sediment concentrations are expressed ir parts 

per million by weight. Daily sediment loads are expressed in 

tons per day, and except for subdivided days are usually obtained by multiplying mean daily sediment concentration in parts 

per million by the mean daily discharge, and the conversion factor 0.0027.

Particle-size analyses are expressed in percentages finer 

than indicated sizes in millimeters. The size classification used 

in this report is that recommended by the American Geophysical 

UnioaSubcommittee on sediment terminology (Lane, et al; 1947, 

p. 937). Other data included as pertinent to the size analyses 

for many streams are the date of collection, the stream discharge 

and sediment concentration when sample was collected, tl ? concentration of the suspension during analysis, and the method of 

analysis.

COMPOSITION OF SURFACE WATERS

All natural waters contain dissolved mineral matter. Water 

in contact with soils or rock, even for only a few hours, will 

dissolve some rock materials. The quantity of dissolved mineral matter in a natural water depends primarily on the typo of 

rocks or soils through which the water has passed and the length

326665 O - 55 - 2
8 QUALITY OF SURFACE WATERS, 1950

of time it has been in contact with the rocks or soils. Some 

streams are fed by both surface runoff and underground water 

from springs or seeps. Such streams reflect the chemicalcharacter of their concentrated underground sources durir^ dry periods and are more dilute during periods of heavy rainfall. Underground water is usually more highly concentrated than surface 

runoff as it remains in contact with the rocks and soils for much 

longer periods. The concentration of dissolved solid^1 in a river 

water is frequently increased by drainage from mines or oil fields, 

by the addition of industrial or municipal wastes, or--in irrigated regions by return drain waters.

The mineral constituents and physical properties of natural 

waters reported in the tables of analyses include those that have 

a practical bearing on the value of the waters for most purposes. 

The analyses generally include results for silica, irci, calcium, 

magnesium, sodium, potassium (or sodium and potassium together as sodium), bicarbonate, sulfate, chloride, fluoride, nitrate, boron, and dissolved solids. Aluminum, manganese, color, pH, acidity, oxygen consumed, and other dissolved constituents and physical properties are reported for certain streams. 

The source and significance of the different constituents and properties of natural waters are discussed in the following paragraphs.

MINERAL CONSTITUENTS IN SOLUTION

Silica (Si02)

Silica is dissolved from practically all rocks. Some natural 

surface waters contain less than 5 parts per million of silica 

and few contain more than 50 parts, but the more conmon range 

is from 10 to 30 parts per million. Silica affects the usefulness 

of a water because it contributes to the formation of boiler scale; 

it usually is removed from feed water for high-pressure boilers. 

Silica also forms troublesome deposits on the blades of steam 

turbines.

Aluminum (Al)

Aluminum is usually present only in negligible quantities in 

natural waters except in areas where the waters hr.ve been in 

contact with the more soluble rocks of high aluminum content 

such as bauxite and certain shales. Acid waters often contain 

large amounts of aluminum. It may be troublesome in feed waters where it tends to be deposited as a scale on boiler tubes.
COMPOSITION OF SURFACE WATERS

Manganese (Mn)

Manganese is dissolved in appreciable quantities from rocks 

in some sections of the country. Waters impounded in larg^ reservoirs may contain manganese that has been dissolved from the 

mud on the bottom of the reservoir by action of carbon cHoxide 

produced by anaerobic fermentation of organic matter. Manganese is not regularly determined in areas where it is not present 

in the waters in appreciable amounts. It is especially objectionable in water used in laundry work and in textile processing. 

Concentrations as low as 0. 2 part per million may cause « darkbrown or black stain on fabrics and porcelain fixtures. Appreciable quantities of manganese are often found in waters containing objectionable quantities of iron.

Iron (Fe)

Iron is dissolved from many rocks and soils. On exoosure 

to the air, normal basic waters that contain more than 1 part per 

million of iron soon be come turbid with the insoluble reddish ferric oxide produced by oxidation. Surface waters, therefore, seldom contain as much as 1 part per million of dissolved iron, 

although some acid waters carry large quantities of iron in solution. Iron causes reddish-brown stains on white porcelain or 

enameled ware and fixtures and on fabrics washed in the water.

Calcium (Ca)

Calcium is dissolved from practically all rocks and soils, 

but the highest concentrations are usually found in waters that 

have been in contact with limestone, dolomite, and gypsun. Calcium and magnesium make water hard and are largely responsible for the formation of boiler scale. Most waters associated 

with granite or silicious sands contain less than 10 p« rts per 

million of calcium; waters in areas where rocks are composed 

of dolomite and limestone contain from 30 to 100 parts per million; and waters that have come in contact with deposits of gypsum may contain several hundred parts per million.

Magnesium (Mg)

Magnesium is dissolved from many rocks, particularly from 

dolomitic rocks. Its effect in water is similar to that of calcium. 

The magnesium in soft waters may amount to only 1 or 2 parts 

per million, but water in areas that contain large quantities of 

dolomite or other magnesium-bear ing rocks may contain from 

20 to 100 parts per million or more of magnesium.
10 QUALITY OF SURFACE WATERS, 1950

Sodium and potassium (Na and K)

Sodium and potassium are dissolved from practically all rocks. 

Sodium is the predominant cation in some of the more highly mineralized waters found in the western Untied States. Natural waters that contain only 3 or 4 parts per million of the two together 

are likely to carry almost as much potassium as sod; um. As the 

total quantity of these constituents increases, the proportion of 

sodium becomes much greater. Moderate quantities of sodium 

and potassium have little effect on the usefulness of the water for 

most purposes, but waters that carry more than 50 or 100 parts 

per million of the two may require careful operation of steam 

boilers to prevent foaming. More highly mineralized waters that 

contain a large proportion of sodium salts may be unsatisfactory 

for irrigation.

Carbonate and bicarbonate (C03 and HCOS)

Bicarbonate occurs in waters largely through tl *5 action of 

carbon dioxide, which enables the water to dissolve carbonates 

of calcium and magnesium. Carbonate as such is not usually 

present in appreciable quantities in natural waters. The bicarbonate in waters that come from relatively insoluble rocks may 

amount to less than 50 parts per million; many waters from limestone contain from 200 to 400 parts per million. Bicarbonate in 

moderate concentrations in water has no effect on its value for 

most uses. Bicarbonate or carbonate is an aid in coagulation 

for the removal of suspended matter from water.

Sulfate (S04)

Sulfate is dissolved from many rocks and soils in especially 

large quantities from gypsum and from beds of shale. It is formed also by the oxidation of sulfides of iron and is therefore present in considerable quantities in waters from mines. Sulfate in 

waters that contain much calcium and magnesium causes the formation of hard scale in steam boilers and may increase the cost 

of softening the water.

Chloride (Cl)

Chloride is dissolved from rock materials in all parts of the 

country. Surface waters in the humid regions are usually low in 

chloride, whereas streams in arid or semiarid regions may contain several hundred parts per million of chloride leached from 

soils and rocks, especially where the streams receive return 

drainage from irrigated lands or are affected by ground-water 

inflow carrying appreciable quantities of chloride. Large quantities of chloride may affect the industrial use of water by in-
COMPOSITION OF SURFACE WATERS 11

creasing the corrosiveness of waters that contain large quantities 

of calcium and magnesium.

Fluoride (F)

Fluoride has been reported as being present in some rocks 

to about the same extent as chloride. However, the quantity of 

fluoride in natural surf ace waters is ordinarily very small compared to that of chloride. Recent investigations indicate tl at the 

incidence of dental caries is less when there are small-amounts 

of fluoride present in the water supply than when there is none. 

However, excess fluoride in water is associated with the dental 

defect known as mottled enamel if the water is used for drinking 

by young children during calcification or formation of the teeth 

(Dean, 1936, p. 1269-1272). This defect becomes increasingly 

noticeable as the quantity of fluoride in water increases above 

1. 5 to 2. 0 parts per million.

Nitrate (NO,)

Nitrate in water is considered a final oxidation product of nitrogenous material and in some instances may indicate previous 

contamination by sewage or other organic matter. The quantities 

of nitrate present in surface waters usually amount to less than 

5 parts per million (as NO3) and have no effect on the value of 

the water for ordinary uses.

It has been reported that as much as 2 parts per million of 

nitrate in boiler water tends to decrease intercrystalline cracking of boiler steel. Studies made in Illinois indicate that nitrates 

in excess of 70 parts per million (as NO3) may contribute to methemoglobinemia ("blue babies") (Faucett and Miller, 1946, p. 

593), and more recent investigations conducted in Ohio show that 

drinking water containing nitrates in the range of 44 to 88 parts 

per million or more (as NO3) may be the cause of methemoglobinemia in infants (Waring, 1949). In a report published by the 

National Research Council, Maxcy (1950, p. 271) concludes that 

a nitrate content in excess of 44 parts per million (as NO3) should 

be regarded as unsafe for infant feeding.

Boron (B)

Boron in small quantities has been found essential fc^ plant 

growth, but irrigation water containing more thanl part per million boron is detrimental to citrus and other boron-sensitive 

crops. Boron is reported in Survey analyses of surface waters 

in arid and semiarid regions of the Southwest and West where 

irrigation is practiced or contemplated, but few of the surface 

waters analyzed have harmful concentrations of boron.
12 QUALITY OF SURFACE WATERS, 1950

Dissolved solids

The reported quantity of dissolved solids--the resHue on evaporation--consists mainly of the dissolved mineral constituents 

in the water. It may also contain some organic matter and water of crystallization. Waters with less than 500 parts per million of dissolved solids are usually satisfactory for domestic and 

some industrial uses. Waters containing several thousand parts 

per million of dissolved solids are sometimes successfully used 

for irrigation where practice sperm it the removal of soluble salts 

through the application of large volumes of water on w? 11 -drained 

lands.

The value for oxygen consumed furnishes an approximation 

of the oxidizable matter in the unfiltered and filtered samples 

and gives a partial measure of polluting materials such as sewage and oxidizable industrial wastes. Naturally highly colored 

waters may have relatively high oxygen consumed, although waters that are not noticeably colored may contain oxidisrable material.

Color

In water analysis the term "color" refers to the appearance 

of water that is free from suspended solids. Many turbid waters 

that appear yellow, red, or brown when viewed in the stream 

show very little color after the suspended matter hap been removed. The ye How-to-brown color of some waters is usually 

caused by organic matter extracted from leaves, rootr, and other 

organic substances in the ground. In some areas objectionable 

color in water results from industrial wastes and sewage. Clear 

deep water may appear blue as the result of a scattering of sunlight by the water molecules. Water for domestic use and some 

industrial uses should be free from any perceptible color. A 

color less than 10 usually passes unnoticed. Some swamp waters 

have natural color of 200 to 300 or more.

Hydrogen-ion concentration (pH)

The degree of acidity or alkalinity of water, as indicated by 

the hydrogen-ion concentration, expressed as pH, is related to 

the corrosive properties of water, and is useful in determining 

the proper treatment for coagulation that may be necessary at 

water-treatment plants. A pH value of 7. 0 indicates that the water is neither acid nor alkaline. Waters having pH values progressively lower than 7. 0 denote increasing acidity, whereas 

values progressively higher than 7.0 denote increasing alkalinity.
COMPOSITION OF SURFACE WATERS 13

(See p. 13 ). The pH of most natural surface waters ranges between 6 and 8. Some alkaline surface waters have pH values 

greater than 8. 0, and waters containing free mineral acid usually 

have pH values less than 4. 5.

Specific conductance (micromhos at 25 C)

The specific conductance of a water is a measure of its capacity to conduct a current of electricity. The conductance 

varies with the concentration and degree of ionization of the different minerals in solution and with the temperature of the water. 

When considered in conjunction with results of determinations 

for other constituents, specific conductance is a useful determination and plays an important part in indicating changes in 

concentration of the total quantity of dissolved minerals in surface waters. (See p. 7 .)

Hardness

Hardness is the characteristic of water that receives th? most 

attention in industrial and domestic use. It is usually reccTnized 

by the increased quantity of soap required to produce lather. The 

use of hard water is also objectionable because it contributes to 

the formation of scale in boilers, water heaters, radiators, and 

pipes, with the resultant decrease in rate of heat transfer, possibility of boiler failure, and loss of flow.

Hardness is caused almost entirely by compounds of calcium 

and magnesium. Other constituents such as iron, manganese, 

aluminum, ba'rium, strontium, and free acid also cause hardness, although they usually are not present in quantities large 

enough to have any appreciable effect. Water that has less than 

60 parts per million of hardness is usually rated as soft ar<J suitable for many purposes without further softening. Waters with 

hardness ranging from 61 to 120 parts per million may I ^ considered moderately hard, but this degree of hardness does not 

seriously interfere with the use of water for many purports except for use in high-pressure steam boilers and in some industrial processes. Waters with hardness ranging from 121 to 200 

parts per million are considered hard, and laundries and industries may profitably soften such supplies. Water with hardness 

above 200 parts per million usually requires some softening before being used for most purposes.

Total acidity

The total acidity of a natural water represents the content 

of free carbon dioxide, mineral acids, and salts especially sulfates of iron and aluminum that hydrolyzeto give hydrogen ions. 

Acid waters are very corrosive and generally contain excessive 

amounts of objectionable constituents, such as iron, aluminum, 

and manganese.
14 QUALITY OF SURFACE WATERS, 1950

Corrosiveness

The corrosiveness of a water is that property vhich makes 

the water aggressive to metal surfaces and frequently results 

in the appearance of the "red water" caused by solution of iron. 

The disadvantages of iron in water have been discussed previously. Additionally, corrosion causes the deterioration of water 

pipes, steam boilers, and water-heating equipment. TTany waters 

that do not appreciably corrode cold-water lines will aggressively attack hot-water lines. Oxygen, carbon dioxide, free acid, 

and acid-generating salts are the principal constituents in water 

that cause corrosion. In a general way, very soft waters of low 

mineral content tend to be more corrosive than hard waters containing appreciable quantities of carbonates and bicrrbonates of 

calcium and magnesium.

Percent sodium

Percent sodium is reported in most of the analyses of waters 

collected from streams in the western part of the ccMntry where 

irrigation is practiced extensively. The proportion of sodium to 

all the basic constituents in the water has a bearing on the suitability of a water for irrigation. (See p. 6 .) Waters in which 

the percent sodium is more than 60 may be injurious when applied to certain types of soils, particularly when adequate drainage is not provided (Magistdd and Christiansen, 1944, p. 8-9; 

Wilcox, 1948, p. 6).

SEDIMENT

Fluvial sediment is generally regarded asthatsed'ment which 

is transported by, suspended in, or deposited by vater. Suspended sediment is that sediment which remains ir suspension 

in water owing to the upward components of turbulent currents 

or by colloidal suspension. Most fluvial sediment results from 

the normal process of erosion, which in turn is part of the geologic cycle of rock transformation. In some instances, this normal process may have been accelerated by agricultural practices. Sediment also results from a number of industrial activities. In certain sections, waste materials from mining, logging, 

oil-field, and other industrial operations introduce large quantities 

of suspended as well as dissolved material.

The quantity of sediment, transported or available for transportation, is affected by climatic conditions, form or nature of 

precipitation, vegetal cover, topography, and land use. An important property of fluvial sediment is the fall velocity of the 

particles in transport. Particle sizes, as determined by various
PUBLICATIONS 15

methods, represent mechanical diameters, which are related to 

sedimentation diameters indirectly. Sediment particles in the 

sand-size (0.062 mm) range do not appear to be affected by flocculation or dispersion resulting from the mineral constituents in 

solution. The sedimentation diameter of clay and silt prrticles 

in suspension may vary considerably from'point to point in a 

stream or reservoir, depending on the mineral matter in solution 

and in suspension and the degree of turbulence present. The size 

of sediment particles in transport at any point depends on the type 

of erodible and soluble material in the drainage area, the degree 

of flocculation present, time in transport, and characteristics 

of the transporting flow. The flow characteristics include velocity of water, turbulence, and the depth, width, and roughness of 

the channel. As a result of these variable characteristics, the 

size of particles transported, as well as the total sediment load, 

is in constant adjustment with the characteristics and physical 

features of the stream and drainage area.

PUBLICATIONS

Reports giving chemical analyses, suspended-sedimen* loads, 

and water temperatures of samples of surface water made by 

the Geological Survey have been published yearly since 1941. 

Records for the years ended September 30, 1941, 1942, 1943, 

1944, 1945, 1946, 1947, 1948, and 1949, for many of the stations 

listed in this report are given in Water-Supply Papers 942, 950, 

970, 1022, 1030, 1050, 1102, 1132, and 1162.

Geological Survey reports containing analyses of surfacewater samples collected prior to 1941 are listed below. Publications dealing largely with the quality of ground-water supplies 

and only incidentally covering the chemical composition of surface - 

waters are not included. Publications that are out of p^int are 

preceded by an asterisk.

PROFESSIONAL PAPER

*135. Composition of river and lake waters of the United States, 

1924.

BULLETINS

*479. The geochemical interpretation of water analyses, 1911. 

770. The data of geochemistry, 1924.

WATER-SUPPLY PAPERS

*108. Quality of water in the Susquehanna River drainage basin, 

with an introductory chapter on physiographic features, 

1904.
16 QUALITY OF SURFACE WATERS, 1950

*161. Quality of water in the upper Ohio River basin and at Erie, 

Pa., 1906.

*193. The quality of surface waters in Minnesota, 1007.

*236. The quality of surface waters in the United States, Part 

1, Analyses of waters east of the one hundredth meridian, 1909.

*237. The quality of the surface waters of California, 1910.

*239. The quality of the surface waters of Illinois, 1910.

*273. Quality of the water supplies of Kansas, with a preliminary report on stream pollution by mine waters in southeastern Kansas, 1911.

*274. Some stream waters of the western United F+ates, with 

chapters on sediment carried by the Rio Grrnde and the 

industrial application of water analyses, 1911.

*339. Quality of the surface waters of Washington, 1914.

*363. Quality of the surface waters of Oregon, 1914.

*418. Mineral springs of Alaska, with a chapter on the chemical 

character of some surface waters of Alaska, 1917.

*596-B. Quality of water of Colorado River in 1925-26, 1928.

*596-D. Quality of water of Pecos River in Texas, 1928.

*596-E. Quality of the surface waters of New Jersey, 1928.

*636-A. Quality of water of the Colorado River in 1926-28, 1930.

*636-B. Suspended matter in the Colorado River in 1925-28, 

1930.

*638-D. Quality of water of the Colorado River in 1928-30, 1932.

*839. Quality of water of the Rio Grande basin above Fort Quitman, Tex., 1938.

*889-E. Chemical character of surface water of Georgia, 1944.

*998. Suspended sediment in the Colorado River, 192F -41, 1947. 

1110-C. Quality of water of Conchas Reservoir, New Mexico, 

1939-49, 1952.

Many of the reports listed are available for consultation in 

the larger public and institutional libraries. Copies of Geological 

Survey publications still in print may be purchased a* a nominal 

cost from the Superintendent of Documents, Government Printing 

Office, Washington 25, D. C., who will, upon request, furnish 

lists giving prices.

COOPERATION

Records in Iowa, Upper Mississippi River basir, were obtained in cooperation with the Iowa Geological Survey, H. G. 

Hershey, director and State geologist. Records on file for sediment sampling stations can be obtained by writing to the District 

Engineer, Surface Water, 508 Hydraulic Laboratory, University 

of Iowa, Iowa City, Iowa.

Financial assistance was furnished by the Bureau cf Reclamation of the United States Department of the Interior in the operation 

of some stations in the Missouri River basin.

In addition to these cooperative programs, many of the stations
DIVISION OF WORK 17

were operated from funds appropriated directly to the Geological 

Survey for quality-of-water investigations.

Assistance in collecting records was given by many municipal, 

State, and Federal agencies.

DIVISION OF WORK

The quality-of-water program was conducted by the water resources division of the Geological Survey, Carl G. Paulsen, chief 

hydraulic engineer, and S. K. Love, chief of the quality of water 

branch.

The chemical quality and sediment investigations in the Missouri River basin in Colorado, Iowa, Kansas, Montana, Nebraska, 

North Dakota, South Dakota, and Wyoming were initiated in 1945. 

The studies were made as a part of the program of the Irterior 

Department for development of the Missouri River basin through 

funds provided directly to the Geological Survey for this purpose. 

The studies were made under the direction of P. C. Bened'ct,regional engineer, Lincoln, Nebr. A few analyses of streams in the 

Hudson Bay basin in North Dakota were made in connection with 

this program. Any additional analytical data on file for the sampling stations can be obtained by writing or visiting the Quality of 

Water regional off ice, 510 Rudge-Guenzel Building, Lincoln, Nebr.

STREAM FLOW

Most of the records of stream discharge, used in conjunction 

with the chemical analyses and in the computation of sediment 

loads in this volume, are published in Geological Survey reports 

on the surface-water supply of the United States. The discharge 

reported for a composite sample is usually the average of the 

mean daily discharges for the normal composite period. For analyses in which the composite periods differ from the normal 

10-or 11-day period, the discharges reported are the averages 

of the mean daily discharges for the days indicated. TH discharges reported in the tables of single analyses either ar^ daily 

mean discharges or are discharges for the time at which samples 

were collected, computed from a stage-discharge relation or from 

a discharge measurement.

LITERATURE CITED

American Public Health Association, 1946, Standard methods for 

the examination of water and sewage, 9th ed, p. 1-112.

Collins, W. D., 1928, Notes on practical water analysis: U.S. 

Geol. Survey Water-Supply Paper 596-H.

Dean, H. T., 1936, Chronic endemic dental fluorosis: Air. Med. 

Assoc. Jour., v. 107, p. 1269-1272.
18 QUALITY OF SURFACE WATERS, 195C

Faucett, R. L., and Miller, H. C., 1946, Methemoglobinemia 

occur ring in infants fed milk diluted with well vaters of 

high nitrate content: Jour. Pediatrics, v. 2J\ p. 593.

Hazen, Alien, 1892, A new color standard for natural waters: 

Am. Chem. Jour., v. 12, p. 427-428.

Kilmer, V. J. and Alexander, L. T., 1949, Method- of making 

mechanical analyses of soils: Soil Sci. v. 6f, p. 15-24.

Lane, E. W., et al, 1949, Report of the Subcommittee on Terminology: Am. Geophys. Union Trans., v. 28, p. 937.

Magistad, O. C., and Christiansen, J. E., 1944, Saline soils, 

their nature and management: U. S. Dept. Agriculture 

Circ. 707, p. 8-9.

Maxcy, Kenneth F., 1950, Report on the relation of ritrate concentrations in well waters to the occurrence o*methemoglobinemia: Natl. Research Council, Bull., Sanitary Engineer, p. 265, App. D.

U. S. Inter-agency Report 7, 1943, A study of methods used in 

measurement and analysis of sediment loads in streams, 

a study of new methods for size analysis of suspended 

sediment samples, p. 82-90; U. S. Engineer Office, St. 

Paul, Minn.

U. S. Inter-agency Report 8, 1948, A study of methods used in 

measurement and analysis of sediment loads of streams, 

measurement of the sediment discharge of streams, p. 

70-76; U. S. Engineer Office, St. Paul, Minn.

Waring, F. Holman, 1949, Significance of nitrates in water supplies: Jour. Am. Water Works Assoc., v. 72, no. 2.

Wilcox, L. V., 1948, Explanation and interpretation of analyses 

of irrigation waters: U. S. Dept. Agriculture Circ. 784, 

p. 6.
CHEMICAL ANALYSES, WATER TEMPERATURES, AND SUSPEND

PART 5. HUDSON BAY AND UPPER MISSISSIPPI RIVER BAS

RED RIVER OF THE NORTH BASIN 

SOURIS RIVER NEAR VERENDRYE, N. DAK.

LOCATION. At gaging station, 3 miles northeast of Verendrye, McHenry County, and 7i miles southwest 

DRAINAGE AREA. 12,200 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1949 to September 1950.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply Pa

Chemical analyses, in parts per million, water year October 1949 to Sep

Date of collection

Feb. 17, 1950 ..... 

Apr. 5 ............

Sept. 28 ...........

Discharge 

(secondfeet)

21 

55 

a 20 

93 

1,280

402 

120 

89 

a 70 

43

PH

8.6 

7.3 

7.2 

7.2 

7.0

8.6 

7.8 

7.4 

7.7 

7.5

Specific 

conductance 

(micromhos at 

25° C.)

1,190 

741 

987 

748 

278

645 

1,070 

685 

1,000 

1,290

Silica 

(310.)

25 

18 

26 

21 

14

14 

18 

9.8 

13 

19

Iron 

(Fe)

0.02 

.04 

.08 

.04

.04 

.04 

.02 

.04 

.02

Calcium 

(Ca)

72 

58 

71 

52 

23

45 

63 

48 

52 

65

Magnesium 

(Mg)

34 

27 

30 

21 

6.5

20 

30 

22 

24 

32

Sodium 

(Na)

Potassium 

(K)

167 

77 

114 

85 

23

74 

142 

92 

149 

188

Carbonate 

(CO,)

29 

0 

0 

0 

0

16 

0 

0 

0 

0

Bicarbonate 

(HCO,)

449 

299 

385 

282 

104

233 

424 

312 

374 

466

Sulfate 

(S04)

160 

125 

142 

113 

40

110 

193 

112 

168 

178

Chloride 

(CD

67 

29 

54 

31 

3.0

14 

26 

24 

45 

89

a Mean daily discharge.
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IOWA RIVER BASIN 

IOWA RIVER AT IOWA CITY, IOWA

LOCATION. At Benton Street Bridge at Iowa City, Johnson County, 0.5 mile downstream from the uni

Ralston Creek, and 3.8 miles downstream from Clear Creek. 

DRAINAGE AREA. 3,230 square miles. 

RECORDS AVAILABLE. Chemical analyses: September 1906 to September 1907, January 1944 to Septemb

Water temperatures: January 1944 to September 1950.

Sediment records: October 1943 to September 1950. 

EXTREMES, 1949-50. Dissolved solids: Maximum, 326 ppm Dec. 1-31; minimum, 116 ppm Mar 1-31.

Hardness: Maximum, 258 ppm Dec. 1-31; minimum, 63 ppm Feb. 10-16.

Specific conductance: Maximum daily 593 micromhos Jan. 12; minimum daily, 125 micromhos Mar. 1

Water temperatures: Maximum, 88°F Aug. 7; minimum, freezing point on many days during December 

Sediment concentrations: Maximum daily, 5,700 ppm June 18; minimum daily, 11 ppm Dec. 24.

Sediment loads: Maximum daily, 109,300 tons July 2; minimum daily, 3 tons Dec. 24. 

EXTREMES, 1943-50. Dissolved solids (1944-50): Maximum, 436 ppm Jan. 26 to Feb. 17, 1948; minimu

Hardness (1944-50): Maximum, 345 ppm Dec. 21-31, 1944; minimum, 54 ppm Jan. 5-10, 1946.

Specific conductance (1945-46, 1947-50): Maximum daily, 739 micromhos Feb. 3, 1948; minimum da

Water temperatures (1944-50): Maximum, 89°F July 4, 1949; minimum, freezing point on many days 

Sediment concentrations: Maximum d»ily, 5,700 ppm June 18, 1950; minimum daily, 4 ppm Feb. 10-1

Sediment loads: Maximum daily, 177,000 tons May 23, 1944; minimum daily, 3 tons Jan. 24, 1945, 

REMARKS. Daily samples for chemical analysis composited by discharge. Records of specific condu

September 1946 and July 1947 to September 1950 available in regional office at Lincoln, Nebr. 

September 1950 given in Water-Supply Paper 1175.

Chemical analyses, in parts per million, water year October 1949 t

Date of collection

Oct. 1-20, 1949 .... 

Oct. 21-23.........

Oct. 24-31.........

Nov. 1-30 .........

Dec. 1-31 .........

Jan. 1-31, 1950 ....

Feb. 10-16 ........

Feb. 17-28 ........

Mar. 1-31 .........

Apr. 1-18..........

Apr. 19 ...........

Apr. 20 ...........

Apr. 21-30 ........

May 1-31 ..........

Mean 

discharge 

(secondfeet)

153 

906 

204 

166 

148

314 

383 

1,793 

375 

5,266

1,889 

955 

892 

1,111 

2.250

Temperature 

CF)

pH

7.6 

7.5 

7.6 

7.7 

7.9

7.5 

6.9 

6.7 

6.8 

6.8

7.5 

7.5 

7.4 

7.6

7 6

Specific 

conductance 

(micromhos at 

25" C)

494 

228 

324 

481 

BIO

338 

308 

161 

217 

158

363

478 

486 

446 

397

Silica 

(Si02)

8.8 

10 

12 

9.4 

11

10 

9.7 

6.7 

7.1 

7.7

17 

17 

19 

19 

16

Iron 

(Fe)

0.02 

.10 

.02 

.02 

.02

.20 

.10 

.40 

.20 

.40

.02 

.04 

.04 

.02 

.26

Calcium 

(Ca)

62 

26 

44 

59 

63

40 

37 

16 

25 

19

49 

66 

64 

60 

54

Magnesium 

(Mg)

22 

6.1 

15 

23 

24

14 

12

5.5 

7.7 

5.6

12 

20 

20 

17 

15

Sodium

(Na)

15 

9.2 

10 

14 

16

9.6 

8.4 

7.4 

5.2 

3.2

6.2 

8.4 

11 

8.8 

6.7

Potassium 

(K)

4.1 

7.8 

5.9 

3.6 

2.9

7.7 

8.3 

9.4 

10 

5.4

4.3 

3.8 

3.9 

3.6 

3.3

Bicarbonate 

(HCO,)

247 

106 

172 

244 

256

156 

141 

72 

100 

74

135 

230 

252 

215 

178

Sulfate 

(SOJ

51 

21 

36 

51 

55

38 

32 

17 

20 

14

41 

58 

50 

53 

46

Ch

ri

(C
IOWA RIVER BASIN Continued

IOWA RIVER AT IOWA CITY, IOWA Continued

Chemical analyses, in parts per million, water year October 1949 to Septem

Date of collection

June 1-16, 1950 ....

June 24-26 .........

June 27-29 .........

June 30-July 1 .....

July 3-30 ..........

July 31 ............

Sept. 1-8 ..........

Sept. 10-23 ........

Sept. 24 ...........

Sept. 25-30 ........

Weighted average

Mean 

discharge 

(secondfeet)

1,587 

2,100 

4,627 

5,610 

6,400 

6,683 

9,610

3,965 

7,770 

952 

2,370 

343

191 

193 

161 

223 

872

1,372

Temperature 

(°F)

PH

7.8 

7.5 

7.2 

7.4 

7.3 

7.3 

7.3

7.7 

7.0 

7.6 

7.1 

7.5

7.6 

7.5 

7.6 

7.9 

7.6

-

Specific 

conductance 

(micromhos at 

25" C)

439 

424 

225 

192 

208 

273 

268

407 

243 

473 

263 

466

496 

505 

508 

517 

335

291

Silica 

(SiOa)

15 

15 

16 

12 

13 

14 

17

24 

12 

15 

7.9 

10

6.7 

6.1 

6.2 

9.1 

14

12

Iron

(Fe)

0.20 

.04

.60 

.14 

.09 

.09

.11 

.50 

.13 

.50 

.42

.40 

.04 

.29 

.04 

.20

0.25

Calcium 

<Ca)

60 

57 

30 

26 

27 

34 

34

54 

30 

61 

30 

56

58 

58 

59 

58 

41

37

Magnesium 

(Mg)

14 

16 

8.0 

6.0 

5.7 

9.8 

9.2

15 

7.9 

20 

10 

21

23 

25 

24 

25 

13

11

Sodium

(Na)

8.2 

7.4 

5.2 

5.5 

7.5 

4.9 

4.4

6.5 

4.0 

9.0 

5.6 

10

13 

14 

15 

13 

7.6

5.9

Potassium 

(K)

3.0 

3.4 

2.7 

3.8 

3.6 

3.8 

3.8

3.5 

3.1 

2.4 

4.2 

3.0

3.0 

2.9 

3.0 

2.9 

2.8

4.4

Bicarbonate 

(HCOa)

212 

200 

129 

94 

93 

122 

121

194 

116 

230 

120 

222

233 

240 

240 

250 

157

136

Sulfate 

(S04)

43 

43 

8.0 

20 

25 

26 

27

40 

22 

51 

28 

53

58 

65 

60 

63 

32

30

Chlo

ride 

(Cl)

4

2

2

2

3

2

4

2

6

4

8

11 

11 

11 

1

4
IOWA RIVER BASIN

IOWA RIVER BASIN Continued 

IOWA RIVER AT IOWA CITY, IOWA Continued

Temperature ("F} of water, water year October 1949 to September 1950

/Once-daily temperature measurement at approximately 7:30 a. m.,

except Jan. 26 to June 18, between 1 p. m. and 5 p. m.7

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

Average

Oct.

56

62

63

63

63

63

63

63

67

69

66

62

63

63

61

61

63

59

--

62

..

58

58

53

51

48

58

58

59

50

48

60

Nov.

45

46

47

45

45

46

44

45

46

48

48

51

51

50

46

46

44

43

42

42

40

37

38

39

38

37

38

37

37

38

--

43

Dec.

39

36

37

39

38

38

37

34

34

36

41

35

35

34

35

35

35

37

37

37

35

33

33

32

35

33

33

34

35

35

36

36

Jan.

34

34

34

32

32

32

32

32

32

32

32

32

32

32

33

32

32

32

32

32

32

32

35

35

33

32

32

32

32

32

32

32

Feb.

32

32

34

32

32

34

34

34

34

36

34

32

34

33

33

33

33

33

33

34

33

33

33

32

32

32

33

34

--

33

Mar.

32

32

32

35

34

34

37

32

32

33

32

32

32

35

34

34

34

34

33

34

35

34

34

37

38

38

41

40

40

42

44

35

Apr.

48

46

43

41

43

45

47

47

44

44

44

44

43

45

47

49

55

54

54

53

54

58

59

58

49

48

47

46

46

44

48

May

48

51

54

58

64

64

61

64

59

64

59

64

64

67

69

64

64

68

64

64

64

67

70

71

73

70

70

66

69

70

71

64

June

75

71

70

68

73

73

76

78

78

68

68

68

72

67

68

68

68

68

72

64

68

68

72

73

74

76

76

73

72

71

--

71

July

70

68

70

74

73

73

75

74

76

68

79

78

72

75

72

75

76

76

75

72

76

75

75

77

76

77

77

80

81

81

75

75

Aug.

77

75

78

75

76

76

88

76

78

77

75

76

76

74

73

74

78

75

74

73

68

69

70

72

73

74

74

74

73

73

70

75

Sept.

72

71

74

73

69

68

69

69

70

74

73

68

68

67

67

68

68

69

69

68

67

66

60

60

59

61

64

65

--

68

326665 O - 55 - 3
HUDSON BAY AND UPPER MISSISSIPPI RIVER BASINS

IOWA RIVER BASIN Continued 

IOWA RIVER AT IOWA CITY, IOWA Continued

Suspended sediment, water year October 1949 to September 1950

Day

1 

?_ _ __

3 

4 

5 

7 . 

g_-____

9 

10 

11 

12------

13------

14 

15 

16------

17 

18------

19 __ , _

20 

2i __ ___

22------

23 ____ _

24------

25------

26------

27 

28--- ---

29------

qnjy------

31 

Total1 . 

2-----~

3 --_ ___

4 

5- 

6 

7 

9 _-_ ___

10 

11 

12------

13------

14 

lg_ _ __

16------

17 

18 

19 

20 

21 

22- _ _.»

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

October

Mean

discharge 

(secondfeet)

94 

101 

114 

114 

105

123 

121 

123 

125 

177

272 

231 

199 

182 

155

165 

155 

150 

158 

189

1,340 

802 

575 

199 

274

231 

210 

192 

177 

181 

168

7,402

Suspended sediment

Mean 

concentration 

(ppm)

54 

50 

40 

47 

53

48 

51 

58 

60 

68

65 

72 

58 

58 

63

61 

64 

44 

49 

71 

186 

392 

260 

173 

150

110 

104 

130 

68 

54 

50

-

Tons 

per 

day

14 

14 

12 

14 

15

16 

17 

19 

20 

32

48 

45 

31 

29 

26

27 

27 

18 

21 

36

673 

849 

404 

93 

111

69 

59 

67 

32 

26 

23

2,887

January

610 

313 

280 

162 

138 

153 

149 

129 

121 

127

123 

117 

1,020 

1,140 

381

387 

385 

344 

275 

243

235 

203 

196 

192 

656 

634 

201 

186 

282 

193 

149

9,729

159 

200 

104 

59 

46 

30 

20 

14 

19 

46

45 

70 

109 

459 

297 

188 

135 

102 

109 

131

130 

122 

120 

108 

204

117 

81 

52 

34 

33 

30

--

262 

169 

79 

26 

17 

12 

8 

5 

6 

16

15 

22 

s474 

1,410 

306

196 

140 

95 

81 

88

82 

67 

64 

56 

361

200 

44 

26 

26 

17 

12

4,382

November

Mean

discharge 

second - 

feet)

168 

165 

148 

164 

142

151 

157 

154 

158 

161

153 

177 

203 

191 

211

213 

198 

172 

174 

167 

156 

144 

162 

162 

156

156 

158 

158 

156 

158

4,993

Suspended sediment

Mean 

concentration 

(ppm)

40 

50 

51 

35 

61

94 

60 

51 

39 

63

36 

40 

57 

59 

60

68 

46 

48 

36 

29

27 

26 

26 

26 

23

22 

23 

29 

43 

30

Tons 

per 

day

18 

22 

20 

15 

23

38 

25 

21 

17 

27 

15 

19 

31 

30 

34

39 

25 

22 

17 

13

11 

10 

11 

11 

10

9 

10 

12 

18 

13

586

February

131 

127 

116 

116 

115 

236 

1,020 

678 

906 

1,460

1,940 

2,340 

2,580 

2,260 

1,260 

708 

524 

470 

405 

408

389 

355 

333 

275 

278

258 

266 

537

20,491

26 

27 

22 

19 

18 

26 

61 

36 

55 

113

145 

420 

388 

262 

135 

81 

69 

58 

51 

56

39 

30 

26 

23 

20 

18 

17 

35

~

9 

9 

7 

6 

6 

17 

168 

66 

135 

445

760 

2,650 

2,700 

1,600 

459 

155 

98 

74 

56 

62

41 

29 

23 

17 

15

13 

12 

51

9,683

Dei-ember

Mean

discharge 

secondfeet)

165 

156 

158 

151 

138

144 

144 

96 

94 

94

140 

181 

92 

101 

117

134 

149 

169 

174 

198 

181 

105 

90 

85 

125

129 

126 

113 

103 

111 

630

4,593

Suspended sediment

Mean 

concentration 

(ppm)

40 

40 

45 

37 

36

26 

28 

30 

26 

28 

44 

42 

39 

40 

43

35 

47 

38 

43 

43

33 

25 

17 

11 

15

14 

17 

27 

33 

41 

.... 67

Tons 

per 

day

18 

17 

19 

15 

13

10 

11 

8 

7 

7

17 

21 

10 

11 

14

13 

19 

17 

20 

23

16 

7 

4 

3 

5

5 

6 

8 

9 

12 

114

497

March

1,620 

1,940 

1,700 

1,340 

4,980 

6,880 

5,720 

8,980 

11,400 

12,800

13,300 

12,800 

11,400 

9,760 

7,240 

3,940 

3,310 

3,140 

2,820 

2,660

2,420 

2,260 

2,420 

2,900 

3,400

4,390 

4,300 

3,580 

3,490 

3,310 

3,060

163,260

69 

61 

86 

101 

444 

818 

1,070 

1,860 

1,280 

820

600 

425 

335 

290 

250 

295 

435 

438 

356 

290

223 

172 

214 

568 

1,580

1,690 

1,070 

598 

540 

575 

482

302 

320 

395 

s385 

86,570 

15,200 

s 16, 600 

s 46, 000 

s 39, 600 

23, 300

21,500 

14,700 

10, 300 

7,640 

4,890

3,140 

3,890 

3,710 

2,710 

2,080

1,460 

1,050 

1,400 

4,450 

s 14, 600

20, 000 

si 2, 600 

5,780 

5,090 

5,140 

3,980

303,787

s Computed by subdividing day.
IOWA RIVER BASIN 25

IOWA RIVER BASIN Continued

IOWA RIVER AT IOWA CITY, IOWA Continued

Suspended sediment, water 'rear October 1949 to September 1950 Continued

Day

2

9

12

9n

99

23

24

27

no

31 

Total2

19 

20

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

April

Mean

charge 

(secondfeet)

2,660 

2,500 

2,660 

2,820 

2,660

2,340 

2,020 

1,780 

1,660 

1,780

1,860 

1,700 

1,540 

1,420 

1,300 

1,180 

1,100 

1,025 

955 

892

822 

720 

864 

1,100 

1,820

1,260 

1,180 

1,100 

1,100 

1,140

46,958

Suspended sediment

Mean 

concentration 

(ppm)

330 

255 

250 

280 

270

210 

160 

120 

102 

135

198 

123 

112 

125 

100

75 

75 

79 

79 

72

71 

78 

82 

139 

345

215 

97 

75 

136 

100

Tons 

per 

day

2,370 

1,720 

1,800 

2,130 

1,940

1,330 

873 

577 

457 

649

994 

548 

466 

479 

351

239 

223 

219 

204 

173

158 

152 

191 

413 

1,700

731 

309 

223 

404 

308

22,331

July

3,290 

7,770 

2,500 

2,020 

1,740

1,540 

1,250 

1,220 

1,140 

1,060 

955 

1,110 

1,290 

857 

649 

690 

829 

666 

969 

787

640 

610 

565 

466 

436

470 

497 

520 

510 

668 

2,370

40,064

828 

4,560 

860 

406 

220

152 

116 

107 

83 

77 

72 

255 

470 

163 

118

108 

107 

114 

357 

416 

189 

142 

127 

110 

120

109 

111 

100 

83 

210 

1,090

--

s 12, 400 

s 109, 300 

5,800 

2,210 

1,030

632 

392 

352 

255 

220

186 

S966 

si, 750 

377 

207

201 

239 

205 

si, 080 

s918

327 

234 

194 

138 

141 

% 138 

149 

140 

114 

S688 

s7,800

148,783

May

Mean

charge 

(secondfeet)

1,220 

1,140 

1,060 

1,620 

1,260

1,100 

1,300 

2,420 

2,980 

2,980

4,030 

4,210 

4,210 

4,210 

3,850

2,980 

2,420 

2,100 

1,860 

1,620

1,740 

1,700 

2,020 

2,660 

1,980

1,700 

1,780 

2,420 

2,020 

1,660 

1,500

69,750

Suspended sediment

Mean 

concentration 

(ppm)

95 

30 

70 

236 

333

165 

100 

258 

674 

945

3,660 

4,020 

2,500 

1,400 

900

480 

300 

198 

145 

122

100 

142 

157 

474 

1,250 

595 

360 

1,110 

2,780 

1,400 

320

Tuns 

per 

day

313 

246 

200 

1,030 

1,130

490 

351 

1,690 

S5,490 

s 8, 260

39,800 

45,700 

28,400 

15,900 

9,360 

3,860 

1,960 

1,120 

728 

534

470 

652 

856 

3,400 

s 6,710

2,730 

1,730 

87,330 

15,200 

6,270 

1.500

213,210

August

848 

537 

289 

484 

408

366 

366 

355 

374 

532 

390 

413 

378 

246 

408

247 

295 

246 

344 

218

289 

436 

146 

344 

197 

249 

159 

386 

281 

234 

172

10,637

365 

280 

185 

182 

154

125 

126 

116 

114 

192

234 

214 

228 

159 

110

96 

93 

99 

107 

108

118 

122 

95 

80 

89

82 

90 

121 

76 

95 

85

836 

406 

144 

238 

170

124 

125 

111 

115 

s377

246 

239 

233 

106 

121

64 

74 

66 

99 

64

92 

144 

37 

74 

47 

55 

39 

126 

58 

60 

39

4,729

June

Mean

charge 

(second - 

feet)

1,380 

1,260 

1,220 

1,300 

1,380

1,340 

1,220 

1,140 

1,060 

990

920 

2,020 

3,140 

2,340 

2,660

2,020 

2,100 

4,120 

4,780 

4,980

5,610 

6,520 

6,280 

6,050 

6,280 

7,720 

10, 300 

10,200 

8,330 

4,640

113,300

Suspended sediment

Mean 

concentration 

(ppm)

170 

130 

100 

125 

150

125 

105 

128 

128 

108

99 

150 

900 

790 

1,460

700 

810 

5,700 

4,870 

4,740

2,820 

2,100 

1,410 

1,000 

1,140

1,480 

1,500 

1,040 

700 

460

--

Tons 

per 

day

633 

442 

329 

439 

559

452 

346 

394 

366 

289

246 

818 

7,630 

4,990 

10, 500

3,820 

4,590 

s 68, 400 

s 62, 800 

s 63, 300

42,700 

37,000 

23,900 

16, 300 

19,300

30,800 

41,700 

28,600 

15,700 

5,760

493,103

September

287 

191 

132 

156 

262

112 

280 

105 

193 

100

232 

132 

147 

139 

167

166 

153 

115 

227 

158

218 

143 

158 

223 

1,420

1,140 

857 

684 

605 

524

9,426

100 

100 

87 

104 

94

85 

127 

88 

60 

55

67 

72 

69 

69 

53

52 

53 

49 

58 

51

58 

71 

56 

72 

171 

541 

360 

238 

171 

140

77 

52 

31 

44 

66

26 

96 

25 

31 

15

42 

26 

27 

26 

24

23 

22 

15 

36 

22

34

27 

24 

43 

S662

si, 630 

833 

440 

279 

198

4,896

Total discharge for year (second-foot-days) ................................................. 500,623

Total load for year (tons) .................................................................. 1,208,851

s Computed by subdividing day.
IOWA RIVER BASIN Continued

CEDAR RIVER AT CEDAR RAPIDS, IOWA

LOCATION. At Eighth Avenue Bridge on U. S. Highway 30, at Cedar Rapids, Linn County, 500 feet dow

and 2.6 miles upstream from Prairie Creek. 

DRAINAGE AREA. 6,640 square miles. 

RECORDS AVAILABLE. Chemical analyses: September 1906 to September 1907, January 1944 to Septembe

Water temperatures: January 1944 to September 1950.

Sediment records: October 1943 to September 1950. 

EXTREMES, 1949-50. Dissolved solids: Maximum, 400 ppm Jan. 1-31; minimum, 118 ppm Mar. 5-11, 12-

Hardness: Maximum, 234 ppm Jan. 1-31; minimum, 71 ppm Mar. 12-13.

Specific conductance: Maximum daily, 689 micromhos Jan. 24; minimum daily, 163 micromhos Mar. 9

Water temperatures: Maximum, 81°F July 29-31; minimum, 33°F Jan. 7.

Sediment concentrations: Maximum daily, 2,050 ppm June 25; minimum daily, 4 ppm Feb. 4, 5.

Sediment loads: Maximum daily, 74,100 tons June 25; minimum daily, 3 tons Feb. 4, 5. 

EXTREMES, 1943-50. Dissolved solids (1944-50): Maximum, 400 ppm Jan. 1-31, 1950; minimum, 118 pp

Hardness (1944-50): Maximum, 334 ppm Jan. 17 to Feb. 1, 1948; minimum, 71 ppm Mar. 12-13, 1950.

Specific conductance (1945-46, 1947-50): Maximum, 689 micromhos Jan. 24, 1950; minimum, 138 mic

Water temperatures (1944-50): Maximum, 89°F July 4, 1949; minimum, freezing point on several da

Sediment concentrations: Maximum daily, 2,050 ppm June 25, 1950; minimum daily, 1 ppm Jan. 20, 

Sediment loads: Maximum daily, 245,000 tons June 15, 1947; minimum daily, 1.6 tons Jan. 21, 194

REMARKS. Daily samples for chemical analysis composited by discharge; Records of specific conduc

September 1946 and July 1947 to September 1950 available in regional office at Lincoln, Nebr. 

September 1950 given in Water-Supply Paper 1175.

Chemical analyses, in parts per million, yater year October 1949 to 

Date of collection

Oct. 1-31, 1949..... 

Oct. 4, Sta. 120a... 

Oct. 4, Sta. 230 a... 

Oct. 4, Sta. 300a... 

Oct. 4, Sta. 325a... 

Oct. 4, Sta. 420a... 

Oct. 4, Sta. 500 a...

Nov. 7, Sta. 120a. .. 

Nov. 7, Sta. 230 a. .. 

Nov. 7, Sta. 300 A. . . 

Nov. 7, Sta. 325 a. .. 

Nov. 7, Sta. 420 a. .. 

Nov. 7, Sta. 500 a. .. 

a Not included in we: 

b Includes equivalent

Mean 

discharge 

(secondfeet)

549 

490 

490 

490 

490 

490 

490

582 

550 

550 

550 

550 

550 

550 

;hted avera 

of 6 parts ;

Temperature 

(°F)

56.

>er ml

PH

8.1 

8.1 

8.1 

8.0 

8.2 

8.3

8.2 

llion

Specific 

conductance 

(micromhos at 

25* C )

457 

434 

429 

422 

428 

428 

430

492 

508 

502 

503 

497 

503 

513

>f carbonate

Silica 

(Si02)

10

12

(CO,).

Iron

(Fe)

0.03

.04

Calcium 

(Ca)

44

47

Magnesium 

(Mg)

18

19

Sodium 

(Na)

26

27

Potassium 

(K)

2.7

2.6

Bicarbonate 

(HCOj)

202 

172 

169 

174 

180 

b!74

217

Sulfate 

(S04)

30 

33 

28 

24 

25 

30

34

Chlo

rid

(Cl

3

3

3

3

3

3

3
Jan. 1-31, 19&0 ....

Feb. 18-Mar. 4 ....

Mar. 31-Apr. 3 ....

June 27-July 31 .....

Sept. 26-30 ........

Weighted average . .

466

494

15,660

3 RAA

2,380

1,524

2,656

8.1

7.5

7.5

7

E

7.8

7.4

7.4

~

561 

549

494

262

370

372

047

047

396

375

402

327

15

12

15

11

15

11

12

.04

.04

.10

.04

.30

0.11

64

55

39

co

52

50

42

18

14

3

0

5.1

14

14

9.9

30

25

3

n

4.0

9 7

11

14

9.6

4.0

5.6

4.6

2 9

3.0

3 3

3.3

4.1

252

212

128

1 AR

192

1 7A

190

152

41

34

19

OQ

QQ

36

26

18

35

26

39

31

2

5.

12

13

1 Q

16

11

a Not Included in weighted average.
HUDSON BAY AND UPPER MISSISSIPPI RIVER BASINS

IOWA RIVER BASIN Continued 

CEDAR RIVER AT CEDAR RAPIDS, IOWA Continued

Temperature (*F) of water, water year October 1949 to September 1950 

/Once-daily temperature measurement generally at 5 p. mj

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

Average

Oct.

62

62

64

68

65

66

69

71

70

70

68

64

62

62

60

59

60

62

62

64

64

59

57

55

52

50

50

52

55

53

50

61

Nov.

48

47

44

45

46

47

48

50

53

55

56

55

54

50

46

45

42

44

43

41

41

40

40

39

37

39

39

40

41

43

45

Dec.

41

40

40

40

39

39

38

37

37

35

36

35

34

37

40

..

37

37

36

37

37

37

37

37

37

37

36

38

37

37

37

37

Jan.

38

37

36

35

36

35

33

37

38

36

38

38

37

36

36

35

37

36

36

36

37

38

37

37

36

35

35

37

36

35

36

36

Feb.

35

35

37

36

36

36

37

38

37

37

36

36

36

35

35

36

36

35

36

36

36

36

36

34

35

36

38

37

36

Mar.

35

35

35

35

35

36

36

35

35

35

35

35

35

37

36

37

36

37

37

38

39

40

40

39

41

42

40

37

39

39

37

Apr.

40

42

44

41

45

44

48

43

45

44

46

45

45

47

49

52

56

55

55

52

53

58

57

55

52

47

45

45

45

48

48

May

49

52

55

60

58

60

60

58

59

58

60

60

65

68

70

65

67

67

64

63

65

67

69

72

72

70

68

68

66

70

70

64

June

71

68

67

66

71

74

76

77

78

75

76

72

71

75

76

76

74

66

62

65

66

71

74

73

73

75

73

74

72

74

--

72

July

71

74

76

75

77

77

77

78

78

76

78

79

75

75

76

78

78

75

72

75

75

75

76

76

75

78

79

80

81

81

81

77

Aug.

80

75

75

74

78

78

78

77

79

79

77

73

74

77

78

80

80

78

75

72

74

73

75

77

78

75

75

74

72

71

71

76

Sept.

75

72

73

72

72

71

71

71

70

72

73

70

67

68

69

69

69

72

72

72

70

67

65

65

62

65

65

67

68

68

--

69
IOWA RIVER BASIN

IOWA RIVER BASIN Continued

CEDAR RIVER AT CEDAR RAPIDS, IOWA Continued

Suspended sediment, water year October 1949 to September 1950

Day

2

o

13

1 A

20

oc

Oc

9ft

29

30 

Total10 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 ----- 

27 .....

28 ~ 

29 

30 

31 

Total

October

Mean

charge 

(secondfeet)

480 

470 

480 

490 

490

510 

540 

610 

550 

520

520 

520 

510 

460 

460

480 

470 

440 

520 

560

580 

550 

838 

706 

540

646 

646 

682 

634 

580 

540

17,022

Suspended sediment

Mean 

concentration 

(ppm)

30 

28 

30 

35 

37

32 

29 

36 

43 

53

35 

27 

29 

29 

29

56 

44 

38 

42 

34

26 

16 

18 

28 

26

14 

10 

25 

40 

36 

20

Tons 

per 

day

39 

36 

39 

46 

49

44 

42 

59 

64 

74

49 

38 

40 

36 

36

73 

56 

45 

59 

51

41 

24 

41 

53 

38

24 

17 

46 

68 

56 

29

1,412

January

420 

580 

497 

680 

450 

230 

346 

320 

323 

312

246 

329 

400 

760 

700

600 

540 

540 

600 

600

470 

480 

490 

470 

490

540 

500 

400 

390 

380 

370

14,453

26 

13 

12 

22 

18

28 

48 

44 

37 

13

7 

14 

16 

43 

90

132 

87 

85 

23 

20 

14 

42 

22 

5 

9

10 

7 

9 

9 

17 

11

29 

20 

16 

40 

22

17 

45 

38 

32 

11

5 

12 

17 

88 

170

214 

127 

124 

37 

32

18 

54 

29 

6 

12

15 

9 

10 

9 

17 

11

1,286

November

Mean

charge 

(secondfeet)

550 

580 

570 

560 

520

540 

550 

570 

520 

520 

540 

646 

590 

646 

580

646 

670 

590 

658 

550

550 

530 

580 

590 

560 

560 

530 

520 

540 

910

17,466

Suspended sediment

Mean 

concentration 

(ppm)

18 

18 

18 

17 

15

10 

18 

24 

30 

28

29 

25 

24 

26 

14

10 

8 

10 

36 

31

26 

24 

22 

23 

14

16 

22 

25 

25 

28

Tons 

per 

day

27 

28 

28 

26 

21

15 

27 

37 

42 

39

42 

44 

38 

45 

22

17 

14 

16 

64 

46

39 

34 

34 

37 

21

24 

31 

35 

36 

69

998

February

350 

320 

310 

310 

310

310 

310 

400 

530 

1,020

1,590 

1,380 

1,200 

950 

700

520 

470 

430 

420 

450 

420 

400 

410 

420 

370

360 

370 

500

15, 530

7 

7 

8 

4 

4

6 

8 

8 

10 

18

32 

37 

23 

19 

14

10 

9 

6 

6

5

5 

8 

9 

9 

10

6 

5 

7

--

6 

6 

7 

3 

3

5 

7 

9 

14 

50 

137 

138 

75 

49 

26 

14 

11 

7 

7 

6 

6 

9 

10 

10 

10

6 

5 

9

645

December

Mean

charge 

( second - 

feet)

614 

543 

928 

595 

740

434 

554 

321 

270 

212

380 

677 

559 

217 

280

315 

754 

686 

670 

896

536 

499 

329 

280 

256

392 

500 

540 

329 

418 

392

15,116

Suspended sediment

Mean 

concentration 

(ppm)

36 

28 

26 

31 

29

23 

37 

24 

14 

13

13

17 

14 

16 

16

25 

24 

16 

15 

13

12 

12 

10 

11 

11

18 

23 

19 

24 

31 

31

Tons 

per 

day

60 

41 

65 

50 

58

27 

55 

21 

10

7

13 

31

21 

9 

12

21 

49 

30 

27 

31

17 

16 

9 

8 

8

19 

31 

28 

21 

35 

33

863

March

778 

754 

694 

634 

2,600

7,800 

11,600 

23,600 

25,600 

30,200

32,400 

24,400 

14,000 

6,840 

6,050

5,700 

5,000 

4,310 

4,240 

4,070 

3,870 

4.140 

4,650 

5,880 

7,280

8,500 

9,550 

9,900 

11,000 

13,300 

20,000

309, 340

11

7 

40 

157 

190

640 

1,220 

675 

318 

341

257 

158 

100 

60 

48

112 

90 

53 

67 

112

104 

72 

103 

121 

193 

188 

213 

199 

300 

413 

548

--

23 

14 

75 

269 

1,330

13, 500 

38, 200 

543,000 

22,000 

27,800

22,500 

510,600 

3,780 

1,110 

784

1,720 

1,210 

617 

767 

1,230 

1,090 

805 

1,290 

1,920 

3,790

4,310 

5,490 

5,320 

8,910 

14, 800 

s 29, 600

267, 854

s Computed by subdividing day.
30 HUDSON BAY AND UPPER MISSISSIPPI RIVER BASINS

IOWA RIVER BASIN Continued

CEDAR RIVER AT CEDAR RAPIDS, IOWA Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

18

22

24

9fi

30

31 

Total1 

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 

Total

April

Mean

discharge 

(secondfeet)

21, 500 

13,000 

8,150 

7,100 

6,050

5,350 

4,550 

4,110 

3,830 

3,830

3,630 

3,280 

3,250 

3,370 

3,190 

2,860 

2,650 

2,410 

2,150 

2,020

1,980 

1,920 

1,940 

3,100 

4,310

5,180 

5,000 

4,320 

3,700 

3,310

141,040

Suspended sediment

Mean 

concentration 

(ppm)

436 

212 

170 

125 

112

95 

67 

56 

68 

62

60 

50 

36 

36 

47

41 

35 

30 

30 

23 

27 

53 

131 

232 

486

963 

671 

495 

335 

240

-

Tons 

per 

day

s 25, 900 

7,440 

3,740 

2,400 

1,830

1,370 

823 

621 

703 

641

588 

443 

316 

328 

405

317 

250 

195 

174 

125 

144 

275 

686 

1,940 

s 5, 940

s 13, 600 

9,060 

5,770 

3,340 

2,140

91,504

July

2,880 

6,660 

3,190 

2,510 

2,240 

2,040 

1,840 

1,800 

1,630 

1,600

1,480 

1,380 

1,380 

1,450 

1,140

1,380 

1,300 

1,270 

1,370 

2,720 

3,470 

2,750 

2,590 

2,560 

2,340

2,180 

2,000 

1,800 

1,540 

1,670 

1,940

66, 100

135 

271 

210 

117 

78

79 

56 

78 

88 

88

76 

69 

90 

103 

63

51 

65 

71 

96 

137 

169 

150 

136 

123 

106

87 

91 

90 

88 

112 

120

--

1,050 

S4.880 

1,810 

793 

472 

435 

278 

379 

387 

360

304 

257 

335 

403 

194

190 

228 

243 

355 

1,010 

1,580 

1,110 

951 

825 

670

512 

491 

437 

366 

505 

629

22,459

Total discharge for year (second-foot-day 

Total load for year (tons) ..............

May

Mean

charge 

secondfeet)

2,950 

2,720 

2,490 

2,840 

2,840

2,840 

3,530 

4,820 

5,880 

5,880

6,750 

8,500 

8,680 

6,920 

5,180

4,190 

3,630 

3,220 

2,950 

2,810

2,720 

2,780 

3,130 

4,040 

3,800

3,770 

4,140 

5,700 

4,650 

3,470 

2,950

130,770

Suspended sediment

Mean 

concentration 

(ppm)

142 

97 

78 

125 

147

78 

200 

908 

1,010 

789 

650 

881 

541 

305 

195 

120 

80 

85 

80 

70

70 

72 

160 

330 

327

380 

410 

989 

343 

185 

110

Tons 

per 

day

1,130 

712 

524 

958 

1,130

598 

S2,020 

s 11, 800 

16,000 

s 12, 800

11,800 

s 20, 000 

s 12, 600 

5,700 

2,730 

1,360 

784 

738 

637 

531 

514 

540 

1,350 

3,600 

3,350

3,850 

84,730 

815,000 

S8.820 

1,730 

876

148,912

August

1,590 

1,480 

1,700 

2,510 

2,540

2,200 

1,840 

1,700 

1,540 

1,380

1,290 

1,240 

1,150 

1,370 

1,400

1,330 

1,150 

1,160 

1,110 

1,080 

1,110 

876 

954 

889 

863 

826 

876 

863 

876 

814 

928

40,635

100 

89 

86 

94 

102

118 

88 

93 

76 

79

78 

83 

66 

67 

64

56 

66 

60 

80 

77 

64 

68 

68 

68 

64

86 

88 

68 

86 

70 

65

429 

356 

395 

637 

700

701 

437 

427 

316 

294

272 

278 

205 

243 

242

201 

205 

188 

240 

225 

192 

161 

175 

163 

149

192 

208 

158 

203 

154 

163

8,914

June

Mean

charge 

(secondfeet)

2,560 

3,280 

4,650 

4,650 

3,870

3,410 

2,950 

2,540 

2,340 

2,180

2,750 

4,310 

4,820 

3,340 

4,870

4,480 

4,140 

7,060 

8,150 

7,800 

8,320 

8,850 

7,010 

7,930 

13,600

13, 500 

5,990 

4,480 

3,660 

3,060

160, 550

Suspended sediment

Mean 

concentration 

(ppm)

75 

205 

175 

198 

120

118 

100 

78 

70 

90 

195 

409 

548 

295 

1,020

841 

767 

1,810 

1,560 

1,070

930 

715 

342 

711 

2,050

960 

760 

377 

196 

105

Tons 

per 

day

518 

1,810 

2,200 

2,490 

1,250

1,090 

796 

535 

442 

530

1,450 

4,760 

7,130 

2,660 

813,800

810,200 

S8,590 

s 35, 000 

S 34, 000 

s 22, 400

20, 900 

17,100 

6,470 

s 16, 400 

S 74, 100

35,000 

12,300 

s4,690 

1,940 

867

341,418

September

814 

754 

754 

754 

742

718 

634 

646 

718 

658

634 

754 

706 

646 

778

754 

658 

670 

610 

658 

1,300 

7,100 

5,440 

3,500 

2,540

1,880 

1,630 

1,430 

1,380 

1,300

41,560

64 

79 

82 

83 

72

70 

69 

64 

80 

64

60 

74 

81 

62 

54

68 

92 

85 

72 

75 

94 

444 

292 

163 

79

88 

67 

72 

79 

72

--

141 

161 

167 

169 

144 

136 

118 

112 

155 

114

103 

151 

154 

108 

113 

138 

163 

154 

119 

133 

330 

s8,660 

84,400 

1,540 

542

447 

295 

278 

294 

253

19,792

s) . ... ............................................... 969, 582

....................................................... 906, 057

s Computed by subdividing day.
PART 6. MISSOURI RIVER BASIN

MISSOURI RIVER MAIN STEM 

BEAVERHEAD RIVER AT BARRATTS, MONT.

LOCATION. At gaging station at bridge on local road at junction with U.S. Highway 91, 1 mile upst

downstream from Grasshopper Creek, and 8i miles southwest of Dillon. 

DRAINAGE AREA. 2,740 square miles.

RECORDS AVAILABLE. Chemical analyses: November 1949 to September 1950. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply 

Chemical analyses, in parts per million, November 1949 to Septe

Date of collection

Dec. 23 ...........

Feb. 7, 1950 .......

Mar. 1 ............

Apr. 4 ............

May 4 .............

May 31 ............

July 20 ............

July 31 ............

Sept. 7 ............

Discharge 

(secondfeet)

505 

399 

329 

350 

500

359 

247 

441 

460 

286

Temperature 

<°F)

PH

8.1 

8.0 

7.9 

7.6 

7.9

7.9 

8.0 

7.8 

7.9 

8.0

Specific 

conductance 

(micromhos at 

25" C)

542 

608 

588 

573 

526

563 

569 

569 

513 

626

Silica 

(S102)

26 

25 

28 

21 

28

18 

21 

21 

20 

20

Iron 

(Fe)

0.04 

.04 

.01 

.04 

.04

.02 

.02 

.06 

.02 

.02

Calcium 

(Ca)

64 

67 

68 

65 

61

60 

61 

74 

50 

76

Magnesium 

(Mg)

21 

23 

24 

25 

17

21 

21 

21 

21 

25

Sodium 

(Na)

Potassium 

(K)

33 

12 

26 

7.4 

26

29 

28 

24 

41 

31

Bicarbonate 

(HCO,)

251 

194 

252 

200 

220

220 

216 

272 

246 

280

Sulfate 

(S04)

84 

103 

93 

93 

75

90 

96 

77 

78 

102

Chlo

rid

(Cl
32 MISSOURI RIVER BASIN

MISSOURI RIVER MAIK STEM Continued

BEAVERHEAD RIVER AT BARRATTS, MONT.--Continued

Periodic determinations of suspended-sediment discharge, water year October 1S49 ti September 1950

Date

Oct. 4, 1949 ...........

Nov. 30 ................

Dec. 23 ................

July 12 .................

Sept. 23 ................

Instantaneous 

water discharge 

(second-feet)

390 

463 

525 

505 

399

329 

305 

346 

500 

399

360 

363 

451 

247 

507

781 

769 

462 

615 

440

449 

399 

313 

285 

492 

564

Suspended sediment

Mean 

concentration 

(ppm)

16 

41 

31 

27 

46

162 

43 

30 

130 

34

17 

32 

40 

11 

68

125 

88 

461 

79 

29

26 

22 

11 

14 

44 

36

Instantaneous 

discharge 

(tons per day)

17 

51 

44 

37 

SO

144 

35 

28 

176 

37

17 

31 

49 

7 

93

264 

183 

575 

131 

34

32 

24 

9 

11 

58 

55
MISSOURI RIVER MAIN STEM Continued 

MISSOURI RIVER AT HIGHWAY BRIDGE AT TOSTON, 

LOCATION. At bridge on U. S. Highway ION at Toston, Broadwater County, 2 miles upstream from Cro

Toston and 9i miles downstream from Sixteenmile Creek. 

DRAINAGE AREA. 14,000 square miles (approximate figure). 

RECORDS AVAILABLE. Water temperatures: May 1949 to September 1950.

Sediment records: March 1949 to September 1950.

EXTREMES, 1949-50. Water temperatures: Maximum, 75°F Aug. 3; minimum, freezing point on many da

Sediment concentrations: Maximum daily, 538 ppm Apr. 8; minimum daily, 6 ppm Oct. 15. 

Sediment loads: Maximum daily, 8,250 tons June 19; minimum daily, 54 tons Sept. 6. 

EXTREMES, March 1949 to September 1950. Water temperatures (May 1949 to September 1950): Maximu

days during December 1949 to March 1950.

Sediment concentrations: Maximum daily, 538 ppm Apr. 8, 1950; minimum daily, 6 ppm Oct. 15, 19

Sediment loads: Maximum daily, 8,250 tons June 19, 1950; minimum daily, 54 tons Sept. 6, 1950.

REMARKS. Discharge records for gaging station at Toston, for water year October 1949 to Septembe

inflow between gaging station and sampling point except during periods of heavy local rains.

Chemical analyses, in parts per million, November 1949 to Sep

Date of collection

Nov. 30, 1949 .... 

Mar. 1, 1950 .....

Discharge 

(secondfeet)

4,210 

4,420 

7,720 

2,650

Temperature 

(°F)

PH

7.6 

7.7 

7.8 

7.7

Specific 

conductance 

(micromhos at 

25* C )

425 

389 

238 

372

Silica 

(SiOt)

34 

27 

22 

28

Iron 

(Fe)

0.02 

.06 

.04 

.02

Calcium 

(Ca)

43 

43 

28 

38

Magnesium 

(Mg)

14 

11 

6.2 

9.7

Sodium 

(Na)

Potassium 

(K)

30 

29 

14 

31

Bicarbonate 

(HCO,)

186 

174 

109 

164

Sulfate 

(SO,)

50 

46 

23 

43

Chl

rid

(Cl

16 

15 

6

14
MISSOURI RIVER BASIN

MISSOURI RIVER MAIN STEM Continued 

MISSOURI RIVER AT HIGHWAY BRIDGE AT TOSTON, MONT. Continued

Temperature (°F) of water, water year October 1949 to September 1950 

/Once-daily temperature measurement between 11 a. m. and 3 p. m.7

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

Average

Oct.

56

53

53

53

48

45

45

44

43

45

43

48

45

45

46

44

34

40

41

40

44

45

45

_

--

46

45

44

44

45

Nov.

45

46

44

44

44

43

43

40

44

40

43

40

42

' 40

41

38

38

40

40

38

38

48

38

39

43

43

42

42

38

38

--

41

Dec.

38

38

36

34

34

33

35

_

--

_

..

_

"

_

__

--

_

_

_

--

50

50

__

44

46

a35

Jan.

_

__

--

_

__

._

32

34

34

34

34

32

36

36

36

36

35

34

_

-

_

_

_

.-

a33

Feb.

__

._

36

36

35

36

35

40

32

36

37

38

35

38

36

36

38

37

35

34

35

35

36

39

39

42

36

37

__

_

..

36

Mar.

37

39

3d

42

43

39

37

37

38

32

32

32

32

34

42

42

37

35

40

44

45

45

42

42

37

38

40

40

42

43

47

39

Apr.

47

42

40

42

43

52

47

45

48

--

53

50

55

50

45

50

50

45

50

55

55

53

45

48

45

45

46

39

42

48

47

May

46

45

45

42

45

49

47

45

46

55

57

55

60

60

60

56

60

54

49

56

48

60

58

53

51

58

64

60

_

50

50

53

June

55

53

53

50

63

60

56

47

56

57

56

50

60

62

61

60

60

60

60

60

64

61

59

56

53

56

61

62

68

66

--

58

July

ea

t9

12

68

68

65

10

68

73

67

e 1?

62

61

71

65

65

65

69

67

67

T)

71

71

71

73

6-»

61

72

6 1

Aug.

70

73

75

67

72

67

68

68

69

--

68

66

66

70

71

70

71

68

68

70

70

70

66

65

70

66

67

71

65

6-< 73

6" 69

6' 69

Sept.

66

73

71

71

69

70

68

62

61

58

60

57

55

54

52

53

58

60

58

59

..

59

59

60

60

55

52

50

46

46

-.

59

a Includes estimated temperature 32°F on missing days.
MISSOURI RIVER MAIN STEM 35

MISSOURI RIVER MAIN STEM Continued

MISSOURI RIVER AT HIGHWAY BRIDGE AT TOSTON, MONT.--Continued 

Suspended sediment, water year October 1949 to September 1950

Day

0

l<3

1R

18

9n

22

23

24

OC

OR

on

OQ

TotalQ

19

18

On

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

charge 

(secondfeet)

3,600 

3,710 

3,760 

3,600 

3,550

3,550 

3,600 

3,640 

3,590 

3,620

3,670 

3,690 

3,670 

3,640 

3,640

3,590 

3,450 

3,660 

3,730 

3,820 

3,870 

3,910 

4,050 

4,230 

4,340

4,210 

4,120 

4,100 

4,090 

4,050 

3,910

117,660

Suspended sediment

Mean 

concentration 

(ppm)

20 

19 

16 

13 

12

10 

8 

8 

9 

8

8 

7 

8 

8 

6

7 

8

11

30 

30 

26 

14

Tons 

per 

day

194 

190 

162 

126 

115

96 

78 

79 

87 

78

79 

70 

79 

79 

59

68 

74

120

332 

331 

284 

148

4,010

January

3,600 

3,100 

2,400 

2,200 

2,300

2,500 

2,600 

2,800 

3,000 

3,100

3,100 

2,950 

2,850 

2,800 

2,750 

2,750 

2,800 

2,900 

3,050 

3,250

3,500 

3,800 

3,800 

3,600 

3,150 

3,100 

3,100 

3,100 

3,100 

3,050 

2,900

93,000

17

18 

20 

26 

26 

12 

30 

27 

25 

62 

102 

90 

74

-

130

143 

154 

197 

193 

89 

227 

211 

206 

544

964 

923 

760

e460

9,720

November

Mean

charge 

(secondfeet)

4,030 

4,000 

3,940 

3,910 

4,010

4,030 

4,030 

4,010 

4,010 

4,010

3,980 

3,920 

3,830 

3,940 

3,940

3,920 

3,920 

3,920 

3,940 

3,920 

3,870 

3,820 

3,820 

3,850 

3,960

4,030 

4,090 

4,160 

4,180 

4,190

119,180

Suspended sediment

Mean 

concentration 

(ppm)

14 

15 

12 

10 

12 

12 

10 

12 

13 

13 

14 

10 

12 

10 

10

12 

12 

10 

13 

13 

9 

12 

15 

13 

12

15 

16 

18 

13 

26

--

Tons 

per 

day

152 

162 

128 

106 

130

130 

109 

130 

141 

141 

150 

106 

124 

106 

106

127 

127 

106 

138 

138 

94 

124 

155 

135 

128

163 

177 

202 

147 

294

4,180

February

2,700 

2,650 

2,600 

2,650 

2,800

3,100 

3,300 

3,200 

3,200 

3,200

3,200 

3,300 

3,400 

3,470 

3,570 

3,760 

4,030 

4,100 

4,000 

4,030

3,830 

3,780 

3,890 

4,120 

4,690 

5,090 

5,550 

5,140

102,350

30 

26 

17

18 

37 

29 

22 

22

23 

22 

22 

21 

28 

35 

51 

69 

55 

44

38 

32 

34 

66 

108 

175 

253 

170

-

e290 

e250 

210 

186 

129

151

330 

250 

190 

190

199 

196 

202 

197 

270 

355 

555 

764 

594 

479 

393 

327 

357 

735 

1,370 

2,400 

3,790 

2,360

17,720

December

Mean

charge 

(secondfeet)

4,140 

4,160 

3,910 

3,740 

3,730

3,760 

3,450 

3,450 

3,600 

3,600 

2,600 

2,400 

2,500 

2,700 

2,900

3,100 

3,400 

3,400 

3,350 

2,600 

2,500 

2,850 

3,250 

3,400 

3,400

3,200 

3,570 

3,800 

1,890 

3,980 

3,820

10j4,150

Suspended sediment

Mean 

concentration 

(ppm)

23 

18 

13 

9 

9

16 

16 

11

17

Tons 

peda;'

257 

202 

137 

91 

91

162 

149 

102

150

4.640

March

4,610 

4,250 

4,100 

,140 

,290

,530 

,420 

,160 

,050 

3,890

3,420 

3,020 

3,300 

3,710 

3,660 

,070 

,210 

,210 

,180 

,320

4,070 

3,980 

3,740 

3,370 

3,330 

3,780 

3,850 

3,890 

3,740 

3,670 

3,740

121,700

105 

91 

71 

52 

42

55 

48 

44 

31 

32

31 

21 

16 

19 

22 

41 

51 

42 

45 

57

29 

26 

19 

19 

18 

17 

20 

19 

15 

15 

16

~

1,310 

1,040 

785 

581 

487

673 

572 

494 

339 

336

286 

171 

143 

190 

217 

450 

580 

477 

508 

665

319 

279 

192 

173 

162 

174 

208 

200 

152 

149 

162

12,470
36 MISSOURI RIVER BASIN

MISSOURI RIVER MAIN STEM Continued

MISSOURI RIVER AT HIGHWAY BRIDGE AT TOSTON, MONT.--Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

5

g

18

22

23

24

«je

27

28

29

30

31 .

Total2

12

m

19

21-- 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

April

Mean 

discharge 

(second - 

feet)

4,190 

5,660 

4,770 

4,910 

4,830

4,730 

4,910 

5,120 

5,140 

5,090 

5,030 

4,950 

5,010 

5,270 

5,530

5,440 

5,400 

5,240 

5,260 

5,050 

4,810 

4,910 

5,120 

5,180 

4,930

4,550 

4,340 

4,340 

4,380 

4,230

148. 320

Suspended sediment

Mean 

concentration 

(ppm)

80 

400 

230 

92 

175 

181 

225 

538 

373 

230

220

190 

70 

75 

84

69 

67 

59 

53 

48 

126 

174 

223 

210 

164

132 

98 

100 

96 

98

Tons 

per 

day

905 

6,110 

2,960 

1,220 

2,280

2,320 

2,980 

7,440 

5,170 

3,160

2,990 

2,540 

946 

1,070 

1,250 

1,010 

977 

835 

754 

655 

1,640 

2,310 

3,080 

2,940 

2,180

1,620 

1,150 

1,170 

1,140 

1,120

65, 920

July

10, 100 

9,880 

9,460 

9,000 

8,640 

8,190 

7,680 

7,820 

7,980 

7,620

7,450 

7,760 

7,650 

7,340 

6,370

5,680 

5,290 

5,070 

4,610 

4,710

4,320 

4,050 

3,910 

3,800 

3,690

3,520 

3,350 

3,150 

3,120 

3,150 

3,330

187,690

61 

54 

47 

42 

41 

38 

27 

32 

34 

33

31 

38 

30 

24 

23 

18 

13 

13 

12 

15

14 

15 

17 

15 

15

15 

16 

15 

14 

18 

14

--

1,660 

1,440 

1,200 

1,020 

956 

840 

560 

676 

733 

680

624 

796 

620 

476 

396

276 

186 

178 

149 

191

163 

164 

179 

154 

150

143 

145 

128 

118 

153 

126

15,280

May

Mean

charge 

(secondfeet)

4,140 

4,190 

4,550 

4,530 

4,310 

4,140 

4,010 

3,850 

3,920 

3,870 

3,870 

3,890 

3,940 

4,190 

4,750

5,310 

5,730 

6,240 

7,090 

6,870 

6,350 

5,780 

6,070 

6,610 

7,200

6,760 

6,220 

6,560 

7,310 

7,260 

7,260

166, 770

Suspended sediment

Mean 

concentration 

(ppm)

105 

83 

39 

19 

18

16 

20 

14 

14 

15

17 

24 

33 

41 

58

76 

76 

107 

149 

110 

77 

50 

75 

107 

126

99 

68 

60 

89 

80 

76

Tons 

per 

day

1,170 

939 

479 

232 

210

179 

216 

146 

148 

157 

178 

252 

351 

464 

744

1,090 

1,180 

1,800 

2,850 

2,040 

1,320 

780 

1,230 

1,910 

2,450

1,810 

1,140 

1,060 

1,760 

1,570 

1,490

31,340

August

3,350 

3,300 

3,210 

3,250 

3,400 

3,590 

3,600 

3,690 

3,710 

3,710

3,670 

3,820 

3,890 

3,830 

3,740

3,640 

3, 490 

3,420 

3,260 

3,210

3,150 

3,070 

2,800 

2,890 

2,890 

2,830 

2,810 

2,780 

2,760 

2,760 

2,720

102,240

8 

8 

11 

19 

16 

14 

13 

14 

15 

15

15 

17 

20 

16 

13

12 

10 

12 

12 

12

11 

11 

10 

10 

10 

9 

11 

12 

11 

11 

11

~

72 

71 

95 

167 

147 

136 

126 

139 

150 

150

149 

175 

210 

164 

131 

118 

94 

111 

106 

104 

94 

91 

76 

78 

78

69 

83 

90 

82 

82 

81

3,520

June

Mean

charge 

(secondfeet)

7,120 

7,200 

7,090 

6,690 

6,400

7,230 

8,190 

10,000 

11,300 

11,000 

10, 600 

10, 300 

10,700 

11,300 

11,600 

11,900 

13,000 

14,400 

15,600 

15,900 

16,000 

16,700 

17, 300 

16,800 

16,800

16, 100 

14,700 

13,300 

11,800 

10,100

357, 120

Suspended sediment

Mean 

concentration 

(ppm)

72 

63 

58 

56 

48

60 

87 

128 

147 

116 

101 

92 

93 

93 

102

105 

128 

181 

196 

158 

152 

140 

139 

114 

100

94 

79 

73 

65 

61

Tons 

per 

day

1,380 

1,220 

1,110 

1,010 

829

1,170 

1,920 

3,460 

4,490 

3,450 

2,890 

2,560 

2,690 

2,840 

3,200

3,370 

4,490 

7,040 

8,250 

6,780 

6,560 

6,310 

8,490 

5,170 

4,540

4,090 

3,140 

2,620 

2,070 

1,660

106, 800

September

2,650 

2,650 

2,640 

2,600 

2,540 

2,510 

2,490 

2,520 

2,760 

3,120

4,160 

4,360 

4,310 

4,480 

4,650

4,810 

4,910 

4,910 

4,910 

4,910 

5,090 

5,120 

5,160 

4,500 

4,230 

4,420 

4,380 

4,690 

4,310 

4,480

119,270

8 

9 

8 

9 

11 

8 

10 

10 

14 

14

19 

17 

14 

15 

16

16 

13 

13 

13 

14

14 

14 

14 

13 

15 

15 

14 

15 

11 

11

--

57 

64 

57 

63 

75 

54 

67 

68 

104 

118

213 

200 

163 

182 

201

208 172 ' 

172 

172 

186

192 

193 

195 

158 

171 

179 

166 

190 

128 

133

4,300

Total discharge for year (second-foot days) .................................................. 1,739,450

Total load for year (tons) ................................................................... 279,900
MISSOURI RIVER MAIN STEM Continued

MISCELLANEOUS ANALYSES OF STREAMS IN MISSOURI RIVER MAIN STEM 

Chemical analyses, in parts per million, water year October 1949 to Septe

Date of collection

Discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

(COs) (HCO,)

Sulfate 

<SO«)

Chloride 

(Cl)

BEAVERHEAD RIVER AT BLAINE

Mav 4

Sent. 7 ..............

8.0

211

7.9

7.8

7.8

607

626

1,170

852

713

19

27

40

25

26

0.04

.04

.04

.02

.02

.04

.02

.02

59

70

64

104

87

87

25

24

26

26

47

23

28

109

60

35

43

0

0

0

0

0

0

0

279

262

236

336

301

288

99

85

298

119

135

18

17

13

40

24

18

19

FORT PECK RESERVOIR

Aue. 21 .............

7.9

7.7

636

610

16

11

0.'02

.04

57

58

21

18

55

52

0

0

188

182

173

160

8.0

8.5

MISSOURI RIVER NEAR WOLF POINT

Dec. 12, 1949........

July 9

Seat. 12 .............

a 5, 250

15,400

12,700

20.400

8.4

7.9

8.1

707

448

631

625

624

13

21

28

11

12

0.02

.04

.04

.04

.04

60 

59

38

52

60

60

59

21

18

18

71 

66

60

72

53

53

7 

6

0

0

0

0

0

0

190 

188

124

181

206

183

186

198 

190

123

170

208

206

164

164

10 

9.5

3.5

7.0

10

9.0

9.0

8.5

a Mean daily discharge.
PRICKLY PEAR CREEK BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN PRICKLY PEAR CREEK BAS

Chemicla analyses, in parts per million, water year October 1949 to Sep

Date of collection

Discharge 

(secondfeet)

pH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(SiO,) (Fe)

(Ca)

Magnesium 

(Mg)

Sodium

(Na)

Potassium 

(K)

Carbonate 

(CO,) <HCO>)

Bicarbonate

Sulfate 

(SOJ

Chloride 

(Cl)

PRICKLY PEAR CREEK NEAR CLANCY

Jan. 20, 1950 ....

Sept. 5 ..........

a 19 

76

183

22

7.3

7.7

8.1

336 

261

352

24

22

0.02

.02

38

43

8.1

7.2

19 1 2.8

21

0

0

107

100

75

91

6.0

2.5

TENMILE CREEK NEAR HELENA

Sept. 30, 1948 ....

Mar. 21, 1950 ....

June 16 ..........

a 10

6.5

340

7.8

7.6

6.6

298

339

91.1

31

25

16

0.00

.04

.15

37

39

10

8.5

7.4

2.2

16 1 0.4

25

3.0

0

0

0

134

151

30

43

45

12

2.0

5.0

.5

i Mean daily discharge.
MARIAS RIVER BASIN

MARIAS RIVER NEAR SHELBY, MONT.

LOCATION. At bridge on U. S. Highway 91, 200 feet upstream from gaging station which is 7 miles sou

downstream from Cut Bank Creek.

DRAINAGE AREA. 2,610 square miles (above gaging station). 

RECORDS AVAILABLE. Chemical analyses: September 1949 to September 1950.

Water temperatures: October 1949 to September 1950.

Sediment records: September 1949 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum, 77°F Aug. 4; minimum, freezing point on many days 

Sediment concentrations: Maximum daily, 3,780 ppm June 13; minimum daily, 1 ppm Jan. 25.

Sediment loads: Maximum daily, 93,900 tons June 13; minimum daily, less than-1 ton Jan. 25. 

REMARKS. Records of discharge- for water year October 1949 to September 1950 given in Water-Supply P

Chemical analyses, in parts per million, September 1949 to Septemb

Date of collection

Sept. 13, 1949 ....

Jan. 2, 1950 ..... 

Feb. 8 ...........

Sept. 6 ..........

Discharge 

(secondfeet)

a 209 

661 

a!80 

a 240

a 250 

1,110 

1,170 

4,420

10,200 

4,140 

1,040 

580

Temperature 

(°F)

pH

8. 3 

7.5 

7.8 

7.7

7.5 

7.6 

7.8 

7.7

6.9 

7.5 

7.9 

7.4

Specific 

conductance 

(micromhos at 

25° C )

585 

417 

531 

503

629 

531 

573 

257

321 

271 

366 

408

Silica 

(SiO,)

6.4 

13 

6.5 

7.6

12 

14 

5.9 

12

12 

9.2 

9.2 

7.5

Iron 

(Fe)

0.04 

.04

.04

.04 

.04 

.02 

.04

.04 

.06 

.02 

.02

Calcium 

(Ca)

54 

44 

58 

53

51 

51 

49 

32

38 

34 

40 

48

Magnesium 

(Mg)

24 

18 

19 

20

25 

16 

24 

9.3

11 

11 

15 

16

Sodium 

(Na)

Potassium 

(K)

33 

19 

27 

29

52 

37 

36 

8.1

13 

9.0 

13 

18

Bicarbonate 

(HCO,)

b 198 

164 

208 

198

200 

172 

200 

126

144 

135 

154 

176

Sulfate 

(S04)

130 

82 

103 

104

165 

120 

123 

29

46 

36 

57 

74

Chloride 

(Cl)

4.5 

2.0 

1.0 

4.0

4.0 

3.0 

4.4 

1.0

1.0 

.5 

1.5 

2.0

a Mean daily discharge.

b Includes equivalent of 7 parts per million of carbonate (CO3 ).
MISSOURI RIVER BASIN

MARIAS RIVER BASIN Continued

MARIAS RIVER NEAR SHELBY, MONT. Continued

Temperature (°F) of water, water year October 1949 to September 1950 

/Once-daily temperature measurement between 3 p. m. and 7 p. m.7

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

Average

Oct.

55

57

56

48

43

43

40

--

_

44

46

48

39

--

33

35

34

36

36

38

38

40

43

40

43

--

Nov.

44

45

45

46

48

42

44

38

38

42

40

40

40

40

40

35

38

40

37

37

41

43

42

43

38

35

35

41

Dec.

35

38

36

35

36

33

32

32

35

33

35

32

35

35

33

33

33

32

33

33

33

3Z

33

33

33

33

33

33

33

33

33

34

Jan.

33

33

33

33

33

33

33

..

..

32

33

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

Feb.

32

32

32

32

32

33

33

33

32

32

32

..

_

32

--

32

32

33

33

33

34

33

33

33

33

33

34

34

..

__

--

a33

Mar.

34

34

34

34

34

35

35

_.

35

34

34

34

34

34

. 34

34

34

34

..

34

34

34

34

34

34

34

_

34

34

34

35

34

Apr.

34

36

38

35

38

35

36

36

36

45

46

46

--

_

44

45

36

48

48

45

42

45

45

48

48

46

43

44

42

May

46

44

_

_

48

48

49

49

52

50

58

52

_

56

56

58

52

48

48

48

..

56

54

50

55

58

54

_

54

55

55

52

June

50

..

58

55

58

56

54

46

46

55

60

60

58

55

52

54

58

55

58

55

56

55

..

60

60

60

65

65

68

--

57

July

68

65

63

63

63

62

71

68

70

65

68

68

68

65

67

65

65

70

64

65

66

66

70

70

70

70

70

70

70

70

65

67

Aug.

65

75

76

77

70

70

70

68

70

67

68

67

69

60

67

76

68

66

66

65

67

68

65

65

65

65

66

65

70

65

68

Sept.

66

70

66

70

70

70

65

65

55

53

60

65

65

50

55

55

60

65

59

62

65

58

58

60

63

55

52

..

45

_.

_-

61

a Includes estimated temperature, 32°F on missing lays.

Suspended sediment, September 1949

Day

1 

2 

3 

4 

5 

6 

7--.. 

------ 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

so 

31 

TotalJuly

Mean 

discharge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

August

Mean 

discharge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

September

Mean 

discharge 

(secondfeet)

_

_

_

-

..

209

219

216

209

199

202

260

289

281

274

267

260

246

236

232

236

236

236

4,307

Suspended sediment

Mean 

coicentrition 

(pirn)

_

_

_

_

-

~

4

6

10

19

21

16

12

17

16

12

9

14

13

13

13

13

14

17

Tons 

per 

day

_

_

_

_

-

_

..

2

4

6

11

11

9

8

13

12

9

6

10

9

8

8

8

9

11

154
MARIAS RIVER BASIN 41

MARIAS RIVER BASIN Continued 

MARIAS RIVER NEAR SHELBY, MONT. Continued 

Suspended sediment, water year October 1949 to September 1950

Day

O

1 n

oo

no

29

Total2

g

40 

18

21 

22 

23 

24 

25 

28 

27 

28 

29 

30 

SI 

Total -

October

Mean

charge 

(secondfeet)

216 

209 

219 

219 

219

216 

219 

236 

260 

281

281 

271 

260 

260 

260

253 

256 

180 

133 

106 

213 

349 

454 

441 

441 

441 

420 

416 

433 

428 

458

9,048

Suspended sediment

Mean 

concentration 

(ppm)

20 

17 

15 

14 

15

17 

19 

26 

21 

20 

18 

20 

20 

18 

17

16 

15

21 

21

26 

27 

78 

136 

78

47 

42 

37 

70 

36 

37

January

200 

180 

160 

180 

200

220 

220 

210 

210 

210

210 

200 

190 

180 

180

180 

180 

190 

200 

210 

210 

210 

200 

190 

180 

180 

180 

180 

180 

160 

190

5,990

13 

13 

13 

14 

11

12 

11

6 

7 

8 

6 

5 

5 

6 

6 

6 

6 

6 

18 

14 

4 

2 

1 

2 

5 

7 

11 

12 

10

~

Tons 

per 

day

12 

10 

9 

8 

9

10 

11 

17 

15 

15

14 

15 

14 

13 

12

11 

10 

e7 

8 

6

15 

25 

96 

162 

93

56 

48 

42 

82 

42 

46

933

7 

6 

6 

7 

6 

7 

7 

e5 

e4 

3 

4 

4 

3 

2 

2

3 

3 

3 

3 

3

10 

8 

2

1 

(t) 

1 

2 

3 

5 

6 

5

132

November

Mean

charge 

(secondfeet)

441 

412 

392 

372 

360

353 

349 

345 

341 

337

330 

326 

396 

420 

445

433 

420 

404 

404 

408

368 

384 

388 

368 

400

424 

458 

488 

683 

705

12.354

Suspended sediment

Mean 

concentration 

(ppm)

30 

21 

19 

16 

13

19 

12 

14 

8 

6

6 

7 

7 

15 

15

10 

16 

9 

9 

9

9 

10 

10

18 

27

40 

57

103 

105

Tons 

per 

day

36 

23 

20 

16 

13

18 

11 

13 

7 

5

5 

6 

7 

17 

18

12 

18 

10 

10 

10

9 

10 

10 

18 

29 

46 

70 

e85 

190 

200

942

February

200 

210 

220 

240 

260

260 

250 

240 

230 

220 

230 

240 

250 

260 

270

250 

220 

230 

250 

260

270 

280 

280 

280 

280 

280 

270 

260

6,990

12 

12 

10

9 

12 

14 

9 

7 

13 

22

6 

25

37 

18 

11 

17 

30 

30 

26 

29 

27 

23 

36 

88 

76

6 

7 

6 

e6 

6 

8 

9 

6 

4 

8 

14 

e8 

4 

18 

e24 

25 

11 

7 

11 

21

22 

20 

22 

20 

17 

27 

64 

53

454

December

Mean

charge 

(secondfeet)

683 

650 

610 

514 

437

479 

471 

460 

440 

412

341 

274 

239 

250 

260

240 

220 

210 

200 

200

220 

230 

240 

240 

240

240 

230 

220 

220 

220 

210

10. 100

Suspended sediirent

Mean 

concentration 

(ppm)

63 

41 

29 

25 

14

15 

13 

19 

11 

34

30 

14 

' 7 

11 

17

28 

20 

28 

35 

29

21 

20 

23 

20 

17

12 

12

7 

10 

19 

17

Tors 

peda,

116 

72 

48 

35 

17

19 

17 

24 

13 

38

28 

10 

5 

7 

12

18 

12 

16 

19 

16

12 

12 

15 

13 

11

8 

7 

4 

6 

11 

10

651

March

250 

250 

260 

280 

300

290 

280 

260 

240 

220

200 

190 

220 

240 

260 

280 

280 

270 

260 

270 

300 

340 

350 

360 

360 

350 

350 

400 

460 

550 

650

9,570

24 

21 

77 

106 

218

265 

307 

129 

65 

36 

22 

11 

15 

16 

24

33 

22 

32 

24 

33

32 

54 

95 

110 

73 

93 

158 

213 

353 

243 

375

--

16 

14 

54 

81 

177

208 

232 

91 

42 

21

12 

6 

9 

10 

17

25 

17 

23 

17 

24 

26 

50 

90 

107 

71 

88 

149 

230 

438 

361 

658

3,360

e Estimated.

t Less than 1 ton.
42 MISSOURI RIVER BASIN

MARIAS RIVER BASIN Continued

MARIAS RIVER NEAR SHELBY, MONT.--Continued

Suspended sediment, water year October 1949 to September 1950--Continued

Day

2

o

12

18

no

31 

TotalU

13

la

18

19 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

April

Mean

charge 

(secondfeet)

800 

1,000 

2,180 

1,490 

1,160

1,200 

967 

830 

743 

830 

811 

1,010 

1,300 

1,960 

2,110 

2,080 

2,100 

2,470 

2,020 

1,750

1,680 

2,070 

2,100 

1,900 

1,650 

I,b80 

1,490 

1,380 

1,260 

1,170

45,091

Suspended sediment

Mean 

concentration 

(ppm)

560 

1,220 

606 

400 

360

800 

170 

121 

180 

174

278 

930 

1,060 

1,480 

790

700 

710 

1,100 

545 

295

282 

392 

500 

261 

159

110 

35 

100 

88 

75

Tons 

per

day

1,210 

3,300 

3,570 

1,610 

1,130

2,590 

444 

271 

361 

390

609 

2,540 

3,720 

7,830 

4,500

3 930 

4' 030 

7,340 

2,970 

1,390

1,280 

2,190 

2,840 

1,340 

709

469 

382 

372 

299 

237

63, 850

July

5,150 

5,640 

5,330 

4,920 

4,560 

4,460 

4,160 

3,830 

3,580 

3,320

3,230 

3,020 

2,730 

2,460 

2,390

2,470 

2,370 

2,110 

1,920 

1,770 

1,690 

1,590 

1,500 

1,420 

1,350 

1,270 

1,240 

1,220 

1,160 

1,110 

1,090

84, 060

395 

1,900 

950 

433 

319 

300 

282 

256 

209 

212

218 

183 

200 

240 

214

175 

147 

134 

126 

116 

122 

96 

93 

103 

86

100 

100 

104 

86 

78 

75

5,490 

28,900 

13,700 

5,750 

3,930 

3,610 

3,160 

2,650 

2,020 

1,900

1,900 

1,490 

1,470 

1,590 

1,380

1,170 

940 

764 

654 

554 

557 

412 

377 

395 

314

343 

335 

342 

269 

234 

221

86,820

Total discharge for year (second-foot-day 

Total load for year (tons) .............

May

Mean

charge

[secondfeet)

1,130 

1,140 

1,160 

1,100 

1,060

1,050 

1,060 

1,060 

1,110 

1,240

1,570 

2,630 

3,760 

5,260 

5,660

5,350 

4,880 

4,790 

4,400 

3,760

3,340 

3,830 

5,680 

5,720 

4,920 

4,500 

4,710 

5,170 

5,330 

5,000 

4,750

106, 100

Suspended sediment

Mean 

concentration 

(ppm)

65 

60 

64 

66 

67

56 

47 

54 

57 

72

350 

1,500 

1,880 

2,380 

2,260

1,140 

963 

997 

924 

545

440 

628 

1,740 

1,440 

814

590 

582 

800 

851 

659 

480

Tons 

per 

day

198 

185 

200 

196 

192

159 

135 

155 

171 

241

1,480 

10,600 

19,100 

33,800 

34,600

16,500 

12,600 

12, 900 

9,790 

5,530

3,970 

6,500 

s 28, 300 

22, 200 

10,800 

7,170 

7,410 

11,200 

12,200 

8,900 

6,150

283.500

August

1,040 

960 

896 

863 

896 

1,010 

889 

811 

767 

767

844 

850 

870 

779 

714

686 

703 

755 

743 

743 

714 

676 

642 

686 

703

703 

698 

670 

648 

632 

620

23,978

90 

81 

76 

75 

570 

1,150 

225 

98 

74 

57 

58 

79 

65 

77 

57

46 

38 

37 

29 

30 

29 

32 

54 

35 

25 

21 

22 

21 

25 

41 

26

--

253 

210 

184 

175 

1,380 

3,140 

540 

215 

153 

118

132 

181 

153 

162 

110

85 

72 

75 

58 

60 

56 

58 

94 

65 

47

40 

41 

38 

44 

70 

44

8,050

June

Mean

charge 

(secondfeet)

4,480 

4,360 

3,900 

3,900 

4,580

5,570 

6,480 

6,640 

5,590 

4,860

4,690 

4,960 

9,200 

10, 200 

9,280

8,760 

8,190 

7,760 

8,500 

8,560

8,090 

8,000 

7,760 

7,010 

6,870 

6,800 

5,700 

5,110 

4,960 

4,980

195,740

Suspended sediment

Mean 

cuncent-ation 

(ppm)

373 

345 

281 

369 

500

1,370 

1,530 

1,480 

810 

840

640 

700 

3,780 

2,530 

1,910

,420 

,200 

,260 

,270 

,220

,130 

,110 

,100

970 

720 

550 

650 

335 

360

Tons 

per 

day

4,510 

4,060 

2,960 

3,880 

6,180

821,800 

26, 800 

26,500 

12,200 

11,000

8,100 

9,370 

93,900 

69,700 

47,900

33,600 

26, 500 

26,400 

29,200 

28,200

24, 700 

24,000 

23,000 

e 18, 000 

18,000

13, 200 

8,460 

8,970 

4,490 

4,840

640,400

S ^tember

605 

626 

575 

575 

575 

580 

565 

556 

560 

570 

575 

580 

575 

570 

575

580 

590 

575 

556 

547 

538 

529 

534 

560 

547 

538 

511 

502 

520 

534

16,823

22 

34 

28 

27 

27 

23 

19 

24

54

27 

18 

27

15 

14 

15 

15 

24 

28 

22 

25 

28 

16 

23 

23

24

3)...... ..............................................

36 

57 

43 

42 

42 

36 

29 

36 

e55 

e80 

84 

e65 

42 

28 

42

23 

22 

23 

23 

35 

41 

31 

36 

42 

24

33 

32 

e30 

34 

e30

1,180

525,844 

1,090,000

e Estimated.

s Computed by subdividing day.
MARIAS RIVER BASIN Continued 

MARIAS RIVER NEAR SHELBY, MONT . Cont inued

Particle-size analyses of suspended sediment, April to Augus

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Aug. 5 ..............

Time

11:05 a.m. 

2:45 p. m. 

7:00 a. m. 

7:30 a.m. 

8:45 p. m.

2:00 p. m. 

9:57 a. m. 

9:57 a.m. 

7:00 p. m. 

8:00 p. m.

Discharge 

(secondfeet)

1,760 

3,370 

4,420 

5,440 

5,570

9,260 

10,300 

10,300 

6,850 

967

Suspended sedim

Concentration 

of sample 

(ppm)

292 

1,770 

2,080 

2,280 

950

3,780 

2,490 

2,490 

1,520 

1,410

Concentration 

of suspension 

analyzed 

(ppm)

792 

1,220 

1,450 

1,590 

2,230

2,810 

1,950 

5,060 

1,180 

846

Percent finer 

0.002

42

20

12 

23

40

0.004

54 

37 

44 

35 

26

35 

21 

34 

33 

59

0.008

70

36

36 

40 

47 

79

0.016

74 

56 

65 

61 

46

60 

49 

54 

60 

91

0.
MILK RIVER BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN MILK RIVER BASIN IN M

Chemical analyses, in parts per million, water year October 1949 to Septem

Date of collection

Discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(SiO.)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Hg)

Sodium 

(Na)

Potassium 

(K)

Carbonate 

(CO,)

Bicarbonate 

(HCO,)

Sulfate 

(80,)

Chloride 

(Cl)

MILK RIVER BELOW FRESNO DAM

Mar. 7, 1950 ......

June 15 ...........

a 18 

a 875

8.2

7.7

542 

370

7.4 

7.8

0.02 

.02

43 

32

19 52 

13 1 2

6.1 

8

6 

0

246 

189

80 

35

8.0 

1.0 

MILK RIVER AT NASHUA

Dec . 9, 1949 .......

Sept. 7. .............

a 50 

385 

167

8.1 

7.7 

8.0

1,630 

1,200 

941

7.6 

11 

7.1

0.02 

.04 

.02

99 

73 

62

49 

33 

25

221 

159 

120

0 

0 

0

433 

244 

282

485 

415 

249

48 

21 

18

a Mean daily discharge.
YELLOWSTONE RIVER BASIN 

YELLOWSTONE RIVER AT MILES CITY, MONT.

LOCATION. At gaging station at bridge on State Highway 22 at Miles City, Custer County, about thre

DRAINAGE AREA. 48,500 square miles (approximate).

RECORDS AVAILABLE.--Chemical analyses: December 1949 to September 1950.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply 

Chemical analyses, in parts per million, December 1949 to Septe

Date of collection

Jan. 6, 1950........

Apr. 6 .............

Apr. 21 ............

May 10 .............

Aug. 2 .............

Sept. 27............

Discharge 

(secondfeet)

5,880 

3,360 

4,350 

4,950 

9,080

28,800 

7,680 

7,850 

12,020 

21,260

51,740 

47,180 

27,840 

19,460 

13,310

6,530 

9,920

Temperature 

(°F)

pH

7.9 

7.9 

7.6 

7.5 

7.5

7.5 

7.7 

7.8 

7.6 

7.9

7.7 

7.3 

7.5 

7.7- 

7.7

7.5 

7.8

Specific 

conductance 

(micromhos at 

25* C)

841 

850 

808 

850

714

747 

794 

800 

618 

394

355 

256 

335 

516 

494

695

773

Silica 

(SiO,)

31 

20 

17 

21 

21

21 

17 

11 

17 

18

11 

15 

13 

16 

14

13 

15

Iron 

(Fe)

0.02 

.04 

.02 

.02 

.04

.02 

.02 

.04 

.02 

.04

.04 

.08 

.02 

.02 

.04

.02 

.02

Calcium 

(Ca)

69 

76 

69 

75 

59

65 

67 

57 

53 

38

38 

27 

30 

46 

47

55 

65

Magnesium 

(Mg)

23 

26 

24 

29 

26

17 

23 

23 

18 

10

5.7 

6.0 

9.4 

11 

9.6

18 

18

Sodium 

(Na)

Potassium 

(K)

87 

77 

81 

72 

59

77 

79 

85 

62 

30

30 

14 

24 

43 

45

70 

78

Bicarbonate 

(HCO,)

214 

230 

226 

234 

198

191 

206 

194 

184 

124

126 

87 

100 

123 

137

171 

168

Sulfate 

(SO,)

248 

242 

228 

240 

200

215 

230 

233 

163 

88

69 

43 

71 

135 

124

201 

242

Chlo

ride 

(Cl)

13 

12 

15 

12 

6

12 

16 

12 

12 

5

3

3

4

7

8

10 

11
YELLOWSTONE RIVER BASIN -Continued 

WIND RIVER AT RIVERTON, WYO.

LOCATION. At gaging station at bridge on State Highway 320, three-quarters of a mile southeast of 

DRAINAGE AREA. 2,320 square miles.

RECORDS AVAILABLE. Chemical analyses: March 1947 to September 1949.

Water temperatures: April 1947 to September 1949.

Sediment records: October 1948 to September 1950. 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 2,600 ppm Oct. 19; minimum daily, not 

Sediment loads: Maximum daily, 18,100 tons June 8; minimum daily, not determined. 

EXTREMES, 1947-50. Dissolved solids (1947-49): Maximum, 358 ppm Apr. 22-29, 1947; minimum, 106 p

Hardness (1947-49): Maximum, 216 ppm Mar. 31 to Apr. 10, 1947; minimum, 69 ppm June 1-30, 1948.

Daily specific conductance (1947-49): Maximum, 822 micromhos May 13, 1948; minimum, 152 micromh

Sediment concentrations (1948-50): Maximum daily, 2,780 ppm May 18, 1949; minimum daily, not de

Sediment loads (1948-50): Maximum daily, 25,500 tons June 13, 1949; minimum daily, not determin

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply 

Chemical analyses, in parts per million, November 1949 to Septemb

Date of collection

Nov. 4, 1949 .....

Feb. 10, 1950 ....

Apr. 29 ..........

Sept. 16 ..........

Discharge 

(secondfeet)

776 

652 

a 490 

342 

409 

1,760 

1,560

Temperature

(°F)

PH

7.7 

7.9 

7.0 

8.0 

7.7 

7.5 

7.8

Specific 

conductance 

(micromhos at 

25° C)

377 

417 

466 

514 

498 

236 

364

Silica 

(Si02)

14 

13 

14 

24 

18 

17 

19

Iron 

(Fe)

0.04 

.02 

.08 

.02 

.02 

.10 

.02

Calcium 

(Ca>

40 

45 

49 

42 

53 

33 

35

Magnesium 

(Mg)

10 

10 

11 

13 

12 

5.3 

8.1

Sodium 

(Na)

Potassium 

(K)

25 

30 

36 

57 

37 

8.3 

32

Bicarbonate 

(HC03 )

136 

149 

156 

182 

176 

104 

133

3ulfate 

(SO,)

69 

81 

95 

113 

99 

31 

69

Chlo

ride 

(Cl)

7.2 

8.4 

12 

10 

10 

2.5 

5.5

a Mean dally discharge.
YELLOWSTONE RIVER BASIN 47

YELLOWSTONE RIVER BASIN Continued 

WIND RIVER AT RIVERTON, WYO.--Continued

Suspended sediment, water year October 1949 to September 1950

Day

9

13

in

19

2290

24

25

Oc

29

30

31

Total2

0

g

12

1 3

1 ft

19

20

oo

23 

24 

25 

26 -- 

27 

28 

29 

30 

31 

TotalOctober

Mean

charge 

(secondfeet)

1,170 

1,270 

1,210 

1,270 

1,210

1,180 

,160 

,200 

,180 

,130

,110 

,080 

,060 

,060 

1,030 

1,010 

1,020 

1,120 

1,240 

688 

902 

940 

980 

1,010 

1,010

902 

848 

803 

794 

848 

794

32,229

Suspended sediment

Mean 

concentration 

(ppm)

413 

285

174 

103

74 

2,600

80

118 

120

100

Tons 

per 

day

si, 410 

fe 1,000

e600

e260

e 1, 100 

8,700 

e440 

e600

e260

24,000

January

480 

470 

420 

370 

370

380 

420 

440 

450 

450

440 

440 

430 

420 

430 

440 

450 

465 

480 

520 

540 

520 

520 

500 

490

470 

460 

450 

440 

420 

400

13,975

6

e8 

e20

e38

800

November

Mean

charge 

(secondfeet)

767 

794 

776 

767 

767

767 

767 

749 

758 

767

716 

676 

628 

660 

668

652 

628 

628 

628 

612 

612 

556 

572 

604 

644

660 

636 

628 

660 

612

20, 359

Suspended sediment

Mean 

concen - 

tration 

(ppm)

12 

21

22 

19 

18

43

16 

15

20 

25

10

Tons 

per 

day

e!60 

e85

e38

77 

e65

e30

1,300

February

390 

400 

410 

430 

440

460 

475 

490 

490 

490

490 

490 

485 

480 

475 

475 

470 

465 

460 

460

460 

460 

465 

485 

510

515 

505 

475

13, 100

38

136

108

119 

165

240

-

e42 

e!80

e!40

e280

J

4,300

December

Mean

charge 

(secondfeet)

604 

500 

495 

480 

450 

410 

381 

395 

390 

400

270 

260 

250 

280 

355

410 

445 

480 

490 

490 

480 

470 

450 

480 

490

490 

490 

500 

500 

490 

490

13,565

Suspended sediment

Mean 

concentration 

(ppm)

18

25 

18

38 

56

10

13 

22

Tons 

per d--y

e20 

e55

e20

830

March

445 

435 

455 

470 

460

440 

415 

380 

335 

300

280 

280 

285 

290 

305 

325 

355 

388 

354 

348 

336 

330 

324 

336 

342

342 

330 

324 

330 

336 

312

10,987

91

76

30 

20

15 

17

59

13 

12 

12

-

e!50 

e60

e26 

ell

1,900

e Estimated.

B Computed by subdividing day.
48 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

WIND RIVER AT RIVERTON, WYO.--Continued

Suspended sediment, water year October 1949 to September 1950--Continued

Day

2

Q

g

1*3

19

on

21

OQ

oc

29

Qrt

Q1

Total -

3

5 

0

12

18

19

21- 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean 

discharge 

(secondfeet)

318 

360 

493 

395 

342 

336 

330 

367 

430 

409

348 

330 

354 

441 

588 

626 

652 

640 

636 

508

566 

630 

776 

644 

448

367 

290 

318 

409 

342

13L693

Suspended sediment

Mean 

concentration 

(ppm)

25

12 

22

75

214 

190 

178 

102

256 

664 

310 

215 

85

55 

19 

20 

23 

18

--

Tons 

per 

day

e26

e36 

89 

e200 

e260 

377 

328 

306 

140

s506 

1,130 

650 

374 

103

54 

15 

17 

25 

17

4,940

July

3,500 

3,840 

3,980 

4,110 

4,010

3,690 

3,570 

3,580 

3,360 

3,100 

3,320 

3,200 

2,890 

2,540 

2,460 

2,290 

2, 130 

1,870 

1,700 

1,590

1,520 

1,450 

1,410 

1,560 

1,480 

1,570 

1,510 

1,450 

1,530 

1,620 

1,400

77,230

431 

378 

479 

943 

647

442 

478 

322 

280 

361 

344 

364 

220 

237 

195 

209 

356 

192 

110 

94

85 

62 

75 

204 

136 

51 

68 

245 

122 

61 

161

--

4,070 

3,920 

5,150 

10, 500 

7,010

4,400 

4,610 

3,110 

2,540 

3,020 

3,080 

3,140 

1,720 

1,630 

1,300 

1,290 

2,050 

969 

505 

404

349 

243 

286 

859 

543 

216 

277 

959 

504 

267 

609

69, 530

May

Mean 

discharge 

(second - 

feet)

300 

300 

269 

248 

239 

221 

239 

306 

312 

290

264 

244 

290 

551 

872 

960 

1,050 

1,150 

1,230 

857

652 

842 

1,400 

1,880 

1,760

1,210 

1,110 

1,610 

1,840 

1,500 

1,830

25 826

Suspended sediment

Mean 

concentration 

(ppm)

16 

30 

22 

40 

55 

42 

32 

30 

38 

45

55 

31 

25 

106 

1,030 

718 

748 

826 

710 

259

130 

270 

1,120 

1,030 

672

570 

428 

166 

525 

443 

458

Tons 

per 

day

13 

24 

16 

27 

35 

25 

21 

25 

32 

35

39 

20 

20 

158 

2,430 

1,860 

s2, 250 

2,560 

2,360 

599 

229 

s768 

s 4, 960 

5,230 

3,190

1,860 

1,280 

2,030 

2,610 

1,790 

2,260

38, 760

August

1,140 

880 

750 

630 

600

595 

595 

560 

540 

530 

540 

555 

570 

570 

555 

535 

515 

480 

455 

420

405 

405 

405 

400 

335 

370 

360 

365 

365 

365 

360

16, 300

99 

160 

91 

59 

51

50 

62 

64 

67 

49 

60 

60 

37 

32 

40 

53 

47 

50 

44 

41

25 

28 

23 

32 

38 

46 

40 

20 

24 

28 

20

--

305 

380 

184 

100 

83

80 

100 

97 

98 

70 

87 

90 

57 

49 

60 

77 

65 

65 

54 

46

27 

31 

25 

35 

40 

46 

39 

20 

24 

28 

19

2,480

June

Mean

charge 

(secondfeet)

2,090 

2,130 

1,980 

1,390 

1,750 

2,780 

3,530 

3,760 

2,440 

1,740

1,480 

2,070 

2,800 

2,910 

3,050 

3,400 

4,130 

4,320 

3,990 

3,980

3,940 

4,060 

4,450 

4,030 

4,130

3,130 

2,520 

2,650 

2,720 

3,000

90, 350

Susoended sediment

M-ian 

cor centrztion 

(ppm)

619 

832 

541 

517 

648 

1,650 

1,890 

1,780 

1,160 

615

448 

738 

1.020 

784 

888 

916 

1.260 

909 

621 

598

681 

865 

856 

644 

561

470 

576 

4fc8 

322 

324

-.

Tons 

per 

day

3,490 

4,780 

2,890 

1,940 

s3,330 

si 4, 700 

18,000 

18,100 

7,640 

2,890

1,790 

s4,710 

7,710 

6,160 

7,310 

8,410 

14,100 

10, 600 

6,690 

6,430

7,240 

9,480 

10,300 

7,010 

6,260

3,970 

3,920 

3,560 

2,360 

2,620

208, 400

September

355 

345 

340 

335 

330

324 

381 

402 

493 

799 

1,230 

1,380 

1,320 

1,310 

1,440 

1,480 

1,300 

1,330 

1,300 

1.480

1,410 

1,300 

1,260 

1,260 

1,210 

1,130 

1,080 

1,060 

1,040 

1,190

29,614

23 

21 

17 

20 

20

26 

28 

23 

31

464 

248 

88 

97 

489 

369 

24S 

133 

328

311 

115 

119 

212 

136 

81 

68 

60 

124 

867

22

20 

16 

18 

18

23 

29 

25 

41 

e700 

e 1, 300 

1,730 

884 

311 

377 

1,950 

1,300 

883 

467 

1,310

1,180 

404 

405 

721 

444 

247 

198 

172 

348 

2,790

18,330

Total discharge for year (second-foot days) ..................................................... 357,128

Total load for year (tons) ..................................................................... 375,600

e Estimated.

s Computed by subdividing day.
YELLOWSTONE RIVER BASIN Continued 

WIND RIVER AT RIVERTON, WYO. Continued

Particle-size analyses of suspended sediment, October 1949 to Ju

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection Time

4:40 p.m. 

12:32 p. m. 

6:30 p. m.

Discharge 

(secondfeet)

1,250 

821 

4,420

Suspended sedime

Concentration 

of sample 

(ppm)

2,840 

261 

984

Concentration 

of suspension 

analyzed 

(ppm)

1,120 

571 

606

Percent finer th

0.002

41 

13 

14

0 004

64 

19 

32

0.008

84 

26 

37

0.016

92 

38 

50

0.03
YELLOWSTONE RIVER BASIN Continued 

BIGHORN RIVER AT THERMOPOLIS, WYO.

LOCATION. At Broadway Street bridge, upstream from principal hot springs inflow, 1 mile upstream fr

County, and 3$ miles downstream from Buffalo Creek. Water discharge measurements made at this sit

DRAINAGE AREA. 8,080 square miles (above gaging station). 

RECORDS AVAILABLE. Chemical analyses: April 1947 to September 1950.

Water temperatures: April 1947 to September 1950.

Sediment records: March 1946 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum 67°F July 10, 11, 28, 29, Aug. 4; minimum, freezing 

Sediment concentrations: Maximum daily, 28,000 ppm Sept. 21; minimum daily, 35 ppm Jan. 14.

Sediment loads: Maximum daily, 330,000 tons Sept. 21; minimum daily, 6 tons Jan. 7. 

EXTREMES, 1946-50.--Dissolved solids (1947-49): Maximum, 728 ppm Aug. 1-31, 1948; minimum, 176 ppm 

Hardness (1947-49): Maximum, 346 ppm Apr. 1-10, 11-20, 1947; minimum, 107 ppm July 7-15, 1947, Ju

Daily specific conductance (1947-49): Maximum, 1,270 micromhos Apr. 26, 1947; minimum, 245 microm

Water temperatures (1947-50): Maximum, 72°F July 10, 11, 24, 1948; minimum, freezing point on man

Sediment concentrations: Maximum daily, 30,800 ppm Sept. 20, 1948; minimum daily, 34 ppm Jan. 2 1

Sediment loads: Maximum daily, 330,000 tons Sept. 21, 1950; minimum daily, 6 tons Jan. 7, 1950. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply P

Chemical analyses, in parts per million, October 1949 to September 1950

Date of collection

Nov. 4.............

Nov. 6 ............

Feb. 13............

Mar. 17 ...........

May 17 ............

June 26 ............

Sept. 1 ............

Discharge 

(secondfeet)

a 1,700 

1,330 

a 1,240 

930

676 

776 

930 

830 

1,840

9,100 

6,820 

2,730 

a 1,000

Temperature 

(° F )

PH

7.3

7.7 

7.4 

7.7

7.6 

.8 

.6 

.8 

.5

.5 

.2 

.6 

.6

Spec if ic 

conductance 

(micromhos at 

25° C )

674 

772 

762 

813

833 

767 

843 

1,040 

742

255 

307 

550 

956

Silica 

(Si02)

14 

11 

12 

13

16 

20 

22 

22 

18

13 

16 

16 

13

Iron 

(Fe)

0.06 

.04 

.04 

.02

.02 

.02 

.02 

.04 

.02

.04 

.06 

.02 

.08

Calcium 

(Ca)

60 

64 

63 

66

74 

67 

72 

84 

68

28 

32 

51 

109

Magnesium 

(Mg)

20 

19 

23 

20

25 

23 

26 

23 

19

5 4 

5.9 

10 

4.6

So- f°- 

dium tos- 

(Na) «-

59 

88 

72 

81

79 

70 

79 

114 

68

17 

24 

49 

112

Bicarbonate 

(HCO3 )

174 

177 

178 

192

216 

192 

200 

212 

204

88 

90 

120 

181

Sulfate 

(SO,)

189 

249 

229 

230

249 

225 

260 

330 

199

50 

73 

160 

343

Chloride 

(Cl)

14 

15 

16 

15

14 

13 

14 

21 

13

2.5 

3.8 

7.5 

18

a Mean daily discharge.
YELLOWSTONE RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

BIGHORN RIVER AT THERMOPOLIS, WYO. Continued

Temperature (°F) of water, water year October 1949 to September 1950 

/Once-daily temperature measurement at approximately 7:30 a. m.7

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

Average

Oct.

56

54

55

54

55

51

50

46

43

43

43

45

46

45

45

46

45

46

40

33

35

35

36

39

42

43

45

44

45

42

42

45

Nov.

42

42

42

42

42

41

41

41

42

42

42

41

40

41

41

40

40

40

39

39

39

39

36

36

36

36

36

36

37

37

--

40

Dec.

..

40

35

32

36

36

35

36

35

37

32

32

33

32

35

37

33

36

35

36

34

34

35

36

34

36

34

36

37

36

35

35

Jan.

34

32

32

32

31

32

35

33

36

36

37

36

37

36

32

34

32

33

33

36

39

35

35

35

33

34

35

33

32

32

32

34

Feb.

32

32

32

36

38

38

36

36

36

36

39

38

36

37

36

37

39

37

38

38

37

36

38

37

37

38

43

37

__

_-

--

37

Mar.

36

37

37

37

36

38

36

39

37

36

35

34

35

37

37

36

41

36

35

36

38

37

38

42

43

44

43

43

42

42

45

38

Apr.

48

48

46

46

46

49

52

51

52

43

48

51

51

53

54

58

56

49

46

48

52

52

51

47

45

47

47

48

41

40

--

49

May

47

49

48

44

42

47

47

43

-

51

54

55

60

59

59

60

61

51

50

54

56

61

55

49

49

51

57

52

54

54

52

June

56

53

50

51

55

60

59

53

49

52

56

60.

60

60

59

61

58

59

58

52

60

60

60

60

59

57

59

60

62

62

--

57

July

66

64

64

64

61

62

66

63

65

67

67

62

61

63

62

63

61

63

64

65

65

64

65

63

64

64

65

67

67

61

60

64

Aug.

60

62

66

6'

65

65

63

64

65

64

64

65

64

63

64

65

65

65

64

61

60

61

--

66

64

62

62

66

63

62

65

64

Sept.

65

65

65

65

65

65

66

64

64

59

54

52

50

54

52

49

51

55

52

58

56

57

56

56

57

58

56

52

52

47

--

57
MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

BIGHORN RIVER AT THERMOPOLIS, WYO. Continued

Suspended sediment, water year October 1949 to September 1950

Day

g

12

19

9n

22

23

25

97

no

30

31 

Totaig

0

13 

14 

15 

16 

17 

18 

19 

20

21 

22----- 

23 

24 

25 

26 

27 ----- - 

28 

29 

30 

31 

Total

October

Mean

charge 

(secondfeet)

980 

1,460 

1,500 

1,490 

1,520

1,450 

1,430 

1,480 

1,590 

1,560

1,510 

1,500 

1,450 

1,470 

1,470

1,430 

1,420 

1,440 

1,580 

1,700

1,260 

1,380 

1,400 

1,460 

1,490

1,500 

1,440 

1,400 

1,380 

1,330 

1,300

44,770

Suspended sediment

Mean 

concentration 

(ppm)

930 

2,860 

1,910 

,640 

,650 

,310 

,180 

,200 

,360 

,310

,190 

,180 

,050 

1,040 

1,050

916 

850 

849 

960 

1,790

J.470 

1,110 

831 

852 

1,000

1,060 

926 

868 

817 

795 

802

-.

Tons 

per 

day

2,460 

11,300 

7,740 

6,600 

6,770 

5,130 

4,560 

4,800 

5,840 

5,520 

4,850 

4,770 

4,100 

4,110 

4,170

3,540 

3,260 

3,300 

4,100 

8,220

5,000 

4,140 

3,140 

3,360 

4,020

4,290 

3,600 

3,280 

3,040 

2,850 

2,820

144, 700

January

728 

692 

708 

616 

576

544 

51 

143 

576 

636

696 

704 

680 

624 

644 

656 

648 

660 

672 

688

708 

1,320 

764 

780 

796

788 

788 

748 

736 

724 

728

20, 822

442 

183 

142 

75 

53

97 

42 

83 

238 

143

129 

112 

76 

35 

100 

100 

94 

73 

74 

115

216 

1,920 

480 

365 

200

240 

274 

203 

128 

88 

97

--

869 

342 

272 

125 

82

142 

6 

32 

463 

246 

242 

213 

140 

59 

174 

177 

164 

130 

134 

214

413 

s8,640 

990 

769 

430 

511 

583 

410 

254 

172 

191

17,590

November

Mean

charge 

(secondfeet)

1,360 

1,320 

1,300 

1,310 

1,280 

1,240 

1,270 

1,270 

1,240 

1,260

1,260 

1,190 

1,150 

1,100 

1,150

1,150 

1,130 

1,080 

1,080 

1,080

1,040 

1,020 

975 

985 

1,040

1,070 

1,080 

1,060 

1,020 

1,020

34, 530

Suspended sediment

Mean 

concentration 

(ppm)

718 

753 

786 

668 

640

637 

678 

686 

606 

648

610 

590 

525 

507 

527

520 

519 

491 

520 

569

523 

480 

455 

515 

626

681 

692 

621 

555 

514

_.

Tons 

per 

day

2,640 

2,680 

2,760 

2,360 

2,210

2, !30 

2,320 

2,350 

2,030 

2,200 

2,080 

1,900 

1,630 

1,510 

1,640

1,610 

1,580 

1,430 

1,520 

1,660

1,470 

1,320 

1,200 

1,370 

1,760

1,970 

2,020 

1,780 

1,530 

1,420

56.080

February

720 

712 

708 

712 

752

772 

780 

784 

788 

772

772 

780 

784 

772 

780 

784 

800 

792 

788 

805

815 

825 

805 

860 

905

980 

1,060 

1,080

22,687

82 

65 

78 

70 

166

219 

243 

173 

154 

173 

238 

208 

195 

193 

215 

245 

270 

300 

263 

290

292 

286 

266 

403 

540 

800 

1,080 

978

--

159 

125 

149 

135 

337

456 

512 

366 

328 

361 

496 

438 

413 

402 

453 

519 

583 

642 

560 

630

643 

637 

578 

936 

1,320 

2,120 

3,090 

2,850

20, 240

December

Mean

charge 

{secondfeet)

980 

930 

860 

788 

720 

688 

720 

732 

748 

740

500 

392 

400 

380 

488

620 

744 

805 

748 

740

728 

660 

620 

736 

712

784 

788 

752 

728 

772 

776

21,779

Suspended sediment

Vean 

concentration 

([om)

414 

412 

331 

220 

154

139 

159 

169 

175 

181

123 

55 

53 

54 

67

140 

115 

157 

103 

102

64 

76 

108 

262 

150 

360 

462 

825 

860 

770 

692

--

Tons 

per 

day

1,100 

1,030 

768 

468 

299

258 

309 

334 

353 

362

166 

58 

57 

55 

88

234 

231 

341 

208 

204

126 

135 

181 

521 

288 

762 

983 

1,680 

1,690 

1,600 

1.450

16, 340

March

1,020 

965 

950 

950 

1,060

1,140 

995 

940 

870 

860 

788 

716 

680 

708 

820 

910 

975 

990 

945 

955

930 

895 

805 

768 

772 

788 

760 

736 

724 

712 

724

26,851

642 

485 

555 

664 

868

1,070 

714 

525 

537 

510

300 

210 

225 

280 

449 

610 

940 

1,410 

933 

1,160

1,330 

1,250 

1,210 

838 

865

1,130 

800 

584 

320 

478 

640

--

1,770 

1,260 

1,420 

1,700 

2,480

3,290 

1,920 

1,330 

1,260 

1,180 

638 

406 

413 

535 

994 

1,510 

?,47n 

3,770 

2,380 

2,990

3,340 

3,020 

2,630 

1,740 

1,800

2,400 

1,640 

1,160 

626 

919 

1,250

54,230

s Compute-i by sub-livi'iing day.
YELLOWSTONE RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

BIGHORN RIVER AT THERMOPOLIS, WYO. Continued

Suspended sediment water year October 1949 to September I950--Continued

53

Day

2

8

10

22

00

25

90

30 

31 ......

Totall_.-__ 

2 

3 

4 

5 7 

6 

7 ..... 

8 

9 

10 

11 

12 

13 

14-- 

15 

16 

17 

18 

19 .....

20 

21 

22 - 

?3 

24 

25 ~

26 

27 

28 

29 

30 

31 

Total

April

Mean

discharge 

secondfeet)

740 

736 

764 

920 

840

776 

780 

776 

875 

1,040

1,000 

895 

815 

784 

845 

1,050 

1,150 

1,190 

1,210 

1,250

1,060 

1,060 

1,210 

1,420 

1,350 

1,090 

1,020 

965 

935 

1,030

29, 576

Suspended sediment

Mean 

concentration 

(ppm)

1,400 

1,640 

1,110 

1,460 

1,050

947 

600 

1,550 

1,850 

3,000

2,070 

1,270 

1,060 

940 

1,090

1,790 

1,940 

1,770 

1,480 

1,510

1,140 

1,540 

1,700 

1,840 

1,430

898 

784 

792 

889 

991

--

Tons 

per 

day

2,800 

3,260 

2,290 

3,630 

2,380

1,980 

1,260 

3,250 

4,370 

8,420

5,590 

3,070 

2,330 

1,990 

2,490

5,070 

6,020 

5,690 

4,840 

5,100

3,260 

4,410 

5,550 

7,050 

5,210

2,640 

2,160 

2,060 

2,240 

2,760

113,200

July

6,510 

7,340 

8,050 

8,660 

9,080 

8,490 

7,920 

7,430 

6,840 

6,530

6,230 

6,680 

6,090 

5,590 

4,870

4,530 

4,160 

3,760 

3,300 

2,960

2,840 

2,790 

2,780 

2,900 

2,940

3,410 

2,940 

2,800 

2,770 

2,900 

3,060

157, 150

1,990 

1,700 

1,560 

2,080 

3,940

2,980 

1,940 

1,850 

1,740 

1,850

2,200 

2,400 

1,850 

1,980 

2,080

1,950 

2,040 

2,040 

2,080 

2,070

2,020 

2,150 

2,240 

5,000 

2, 900

19, 000 

9,600 

4,840 

4,020 

4,230 

3,990

~

35, 000 

33, 600 

33, 900 

48,700 

96, 600

68, 300 

41,500 

37, 100 

32, 100 

32,600

37, 000 

43, 300 

30, 400 

29,900 

27, 300 

23, 900 

22, 900 

20, 700 

18, 500 

16, 500

15, 500 

16,200 

16, 800 

39, 200 

23,000

sl85,000 

76, 200 

36, 600 

30, 100 

33, 100 

33,000

1,234,000

May

Mean

charge 

secondfeet)

950 

890 

900 

920 

860

825 

870 

995 

1,140 

1,110

1,040 

985 

970 

955 

1,170

1,790 

1,990 

2,250 

2,600 

2,560

2,190 

2,000 

2,310 

3,240 

3,990 

3,550 

3,000 

2,930 

3,860 

3,760 

3,570

60, 170

Suspended sediment

Mean 

concentration 

(ppm)

787 

768 

873 

1,120 

927

836 

1,110 

1,880 

2,390 

2,490

1,500 

1,380 

1,350 

1,310 

1,840

4,160 

3,860 

3,840 

4,490 

3,140

1,490 

1,630 

2,220 

3,840 

4,930

2,700 

1,660 

1,590 

2,840 

2,900 

2,430

Tons 

per 

day

2,020 

1,850 

2,120 

2,780 

2,150 

1,860 

2,610 

5,050 

7,360 

7,460

4,210 

3,670 

3,540 

3,380 

5,810 

20, 100 

20,700 

23,300 

31,500 

21,700

8,800 

8,800 

13,800 

33,600 

53, 100

25,900 

13,400 

12,600 

29, 600 

29,400 

23,400

425,600

August

2,670 

2,280 

1,980 

1,730 

1,640

1,610 

1,630 

1,540 

1,430 

1,370 

1,270 

1,330 

1,360 

1,460 

1,450

1,390 

1,380 

1,300 

1,260 

1,100

1,040 

1,020 

1,040 

1,060 

1,100

1,090 

1,080 

1,020 

980 

1,000 

1,020

42,630

3,640 

3,450 

3,430 

3,380 

3,500

3,300 

3,500 

3,550 

3,370 

3,350

3,320 

3,770 

3,950 

4,600 

4,060

3,960 

3,920 

3,830 

3,590 

3,750

3,720 

4,000 

3,680 

3,300 

2,880

2,750 

2,560 

2,500 

2,600 

3,500 

2,850

-

26,200 

21,200 

18,300 

15,800 

15,500

14, 300 

15,400 

14,800 

13,000 

12,400 

11,400 

13,500 

14, 500 

18,100 

15,900

14, 900 

14,600 

13,400 

12, 200 

11,100

10,400 

11,000 

10, 300 

9,440 

8,550

8,090 

7,460 

5,890 

6,880 

9,450 

7,850

402, 800

June

Mean

charge 

secondfeet)

4,580 

5,180 

5,170 

4,620 

4,020

4,720 

5,960 

6,980 

6,860 

5,550

4,860 

4,720 

5,970 

6,680 

6,680 

7,160 

7,690 

8,490 

8,850 

8.410

8,280 

8,300 

8,760 

9,160 

9,060

8,810 

7,160 

5,870 

5,870 

5,620

200, 040

Suspended sediment

Mean 

concentration 

(ppm)

3,120 

3,440 

4,510 

3,830 

2,920

2,840 

4,320 

4,340 

3,940 

3,220

2,370 

2,410 

3,140 

2,630 

2,120

2,060 

2,480 

2,860 

2,600 

3,010

2,120 

1,820 

1,640 

1,490 

1,550 

1,660 

1,790 

1,930 

1,800 

1,830

Tons 

per

drw

38,600 

48, 100 

63,000 

47, 800 

31,700

36, 200 

69, 500 

81,800 

73, 000 

48, 300

31,100 

30,700 

50,600 

47, 400 

38, 200

39, 800 

51, 500 

65, 600 

62, 100 

68, 300

47,400 

40,800 

38,800 

36, 900 

37, 900

39, 500 

34, 600 

30,600 

28, 600 

27,800

l,3tf, 000

September

1,000 

950 

920 

900 

880

870 

860 

860 

880 

1,250 

1,690 

2,170 

1,970 

2,030 

2,170

2,370 

2,120 

1,990 

2,080 

2,430 

4,090 

2,720 

2,320 

2,180 

2,110

1,980 

1,910 

1,870 

1,950 

2,080

53, 600

2,600 

2,700 

2,850 

3,150 

3,140

3,150 

3,150 

3,180 

3,040 

5,400

10,800 

9,750 

6,350 

4,590 

3,820

4,000 

3,810 

3,420 

3,100 

11,000

28, 000 

7,570 

4,730 

3,850 

3,140

2,660 

2,410 

2,110 

1,970 

3,030

-

7,020 

6,930 

7,080 

7,650 

7,460

7,400 

7,310 

7,380 

7,220 

1<», 200 

49, 300 

57, 100 

33, 800 

25, 200 

22,400

25,600 

21,800 

IS, 400 

17,400 

s 91, 700

S 330, 000 

55, 600 

2"> 600 

22, 700 

17,900

1<, 200 

12,400 

11,700 

11,400 

17,000

96- 800

Total discharge for year (second-foot days). 

Total load for year (tons) .................

714,605 

4,83'', 000

s Computed by subdividing day.
YELLOWSTONE RIVER BASIN--Continued 

BIGHORN RIVER AT THERMOPOLIS, WYO. Continued

Particle-size analyses of suspended sediment, water year October 1949 t

(Methods of analysis: B, bottom withdrawal tube; D, oecantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Oct. 6 ..................

Oct. 12 .................

Oct. 27 .................

Nov. 4 .................

Nov. 10.. ...............

Nov. 18.. ...............

Nov. 18.................

Nov. 25. ................

Dec. 2..................

Dec. 7..................

Jan. 16, 1950 ...........

Mar. 8 .................

Mar. 8 .................

Mar. 17 ................

Mar. 22 ................

Mar. 30 ................

Apr. 13...... ...........

May 1 ..................

May 8 ..................

May 12 .................

May 17 .................

May 17 .................

May 26 .................

June 16 .................

June 21 .................

Time

10:50 a. m. 

10:50 a.m. 

10:20 a. m. 

10:20 a. m. 

10:25 a.m.

10:25 a.m. 

2:35 p.m. 

9:50 a.m. 

9:50 a.m. 

3:00 p.m.

3:05 p.m. 

12:50 p.m. 

3:40 p.m. 

10:00 a.m. 

10:00 a. m.

10:15 a.m. 

3:05 p.m. 

3:00 p. m. 

10:15 a.m. 

3:10 p.m.

12:15 p.m. 

12:35 p.m. 

1:10 p. m. 

4:35 p.m. 

11:40 a. m.

11:40 a.m. 

11:10 a.m. 

2:05 p. m. 

10:50 a. m. 

3:40 a. m.

Discharge 

(secondfeet)

,460 

,460 

,500 

,420 

,330

,330 

,270 

,100 

,100 

,040

930 

792 

676 

935 

935

940 

835 

708 

850 

820

1,060 

955 

1,000 

1,000 

1,840

1,840 

3,610 

5,230 

7,310 

8.470

Suspended sedim

Concentration 

of sample 

(ppm)

1,260 

1,260 

1,180 

894 

686

686 

653 

486 

486 

656

422 

209 

278 

792 

792

664 

875 

559 

1,170 

1,170

1,130 

765 

2,080 

1,350 

2,920

2,920 

2,520 

3,200 

1,970 

1.830

Concentration 

of suspension 

analyzed 

(ppm)

520 

999 

1,530 

1,500 

503

480 

1,840 

974 

900 

2,230

1,210 

647 

874 

966

945

1,230 

1,980 

1,390 

3,340 

3,390

2,230 

1,650 

4,820 

3,390 

1,910

2,080 

2,790 

5,010 

3,760 

3.600

Percent finer 

0.002

3 

22

12 

10

28

2 

23

0.004

11

7

id

24 

6

4 

18 

10 

8 

17

14 

17

18 

16

40 

50 

49 

49 

60

35 

43 

62 

59 

8

26 

21 

20 

32 

35

0.008

1 

11 

14 

30 

12

8 

22 

12 

11 

24

19 

22 

5 

22 

21

45

27 

32

0.016

22 

18 

20 

35 

14

14 

26 

16 

14 

27

24 

26 

7 

24 

24

51 

76 

75 

74 

79

56 

57 

74 

76 

36

42 

34 

31 

48 

53

0.0
Sept. 27 ................ 

Sept. 27 ................

8:50 a. m.

12:10 p.m.

12:10 p.m.

10:55 a.m.

3:20 p.m.

10:25 a.m.

10:25 a.m.

10:15 a.m.

9:55 a.m.

10:15 a.m.

10:15 a.m.

11:20 a.m.

11:20 a.m.

7:15 a.m.

2:45 p.m.

10:00 a.m. 

10:00 a.m.

6,770

8,770

8,770

3,150

2,970

2,970

2,750

2,750

1,420

1,400

b 1,000

b 1,000

2,190

2,190

4,180

4,190

1,930 

1,930

2,460

2,130

2,130

2,290

7,250

7,250

4,160

4,160

3,460

3,870

2,620

2,620

6,080

6,080

36,900

17,000

2,390 

2,390

5,360

5,520

2,890

7,180

5,090

1,260

--

343

..

15

25

426

45

18

"

53"

32-

38

66

75

67

19

a 100 percent finer than 2.000 millimeters, 

b Daily discharge.
MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

BIGHORN RIVER NEAR MANDERSON, WYO.

LOCATION. At gaging station at bridge on county highway, a quarter of a mile west of

Rairden, and 6 miles southeast of Manderson, Big Horn County. 

RECORDS AVAILABLE.--Water temperatures: August 1949 to September 1950.

Sediment Records: April 1949 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum, 77°F July 8; minimum, freezing point

on many days during November to March.

Sediment concentrations: Maximum daily, 28,000 ppm Aug. 13; minimum daily, not determined. 

Sediment loads: Maximum daily, 218,000 tons Sept. 22; minimum daily, rot determined. 

EXTREMES, April 1949 to September 1950. Water temperatures (August 1949 to September 1950): 

Maximum, 80°F Aug. 1, 10, 11, 1949; minimum, freezing point on many days during November 

1949 to March 1950. 

Sediment concentrations: Maximum daily, 28,000 ppm Aug. 13, 1950; mininum daily, not

determined.

Sediment loads: Maximum daily, 218,000 tons Sept. 22, 1950; minimum daily, not determined. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in 

Water-Supply Paper 1176.

Temperature (°F) of water, water year October 1949 to September 1950 

/Once-daily temperature measurement between 8 a. m. and 11 a. m.; excepting Dec. 23 to Feb. 17_7

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

Average

Oct.

58

57

57

56

55

51

48

45

45

45

43

42

47

52

48

51

46

45

39

35

37

35

36

42

43

48

47

45

46

43

46

Nov.

46

43

46

43

42

45

41

43

44

45

42

42

41

42

46

40

39

40

38

37

36

36

35

38

39

33

39

40

39

32

40

Dec.

..

35

35

33

33

35

33

32

33

32

_

_

_

--

_

..

--

_

32

-

..

32

a 32

Jan.

_

..

_

--

32

_

--

..

..

_

_

-

_

..

..

32

..

a 32

Feb.

_

_.

_

--

_

32

--

_

_

_

_

"

_

33

34

35

33

34

34

35

34

36

36

35

34

a 33

Mar.

34

34

34

34

34

34

33

34

33

32

32

32

34

36

36

36

38

33

34

37

41

42

45

42

41

42

41

41

41

43

37

Apr.

47

43

41

43

44

49

51

51

49

46

49

52

54

58

54

56

58

45

47

49

51

53

54

42

45

47

47

41

42

49

May

48

47

44

43

47

49

48

42

46

53

55

58

60

63

63

60

62

62

54

55

59

61

63

53

53

52

56

55

54

56

57

54

June

58

55

55

56

61

59

51

54

56

61

65

65

63

64

61

60

60

61

63

63

59

61

60

59

60

61

64

66

60

July

67

69

66

62

66

65

66

77

68

69

67

65

65

67

65

64

66

66

68

65

67

69

65

68

68

68

69

71

63

64

63

f7

Aug.

63

66

69

67

66

64

65

66

66

65

66

63

63

66

68

66

65

66

66

64

63

65

62

66

65

64

66

66

65

Sept.

67

68

70

70

67

69

67

66

63

57

53

53

52

52

50

52

54

57

59

58

58

58

60

57

58

55

53

49

45

59

a Includes estimated temperature, 32° F, on missing days.
YELLOWSTONE RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

BIGHORN RIVER NEAR MANDERSON, WYO.--Continued

Suspended sediment, water year October 1949 to September 1950

Day

2

q

19

21

f)A

no

29

Totalg

g

15 

21 

22 ----- 

23 

24 

25 ----- 

26 

27 

28 

29 

30 ----- 

31 -----

Total

October

Mean

charge 

(secondfeet)

832 

920 

,430 

,460 

,460

,470 

,340 

,500 

,480 

,500 

,500 

,440 

,460 

,440 

,490

,440 

,420 

,380 

,340 

,630 

,550 

,330 

,490 

,590 

,680

,670 

,600 

,530 

,480 

,470 

,460

44,782

Suspended sediment

Mean 

concentration 

(ppm)

1,410 

2,800 

3,710 

2,600 

2,450

2,080 

,590 

,610 

,900 

,990

,670 

,650 

,490 

,460 

,700

,780 

,310 

,470 

,460 

1,840

2,580 

2,320 

2,520 

2,020 

3,210

2,440 

1,850 

1,470 

1,240 

990 

990

Tons 

per 

day

3,170 

6,950 

14,300 

10,200 

9,650

8,250 

5,750 

6,520 

7,600 

8,060

6,760 

6,410 

5,880 

5,680 

6,840

6,920 

5,020 

5,480 

5,280 

8,100 

10,800 

8, 3'30 

10, 100 

8,670 

14, 600

11,000 

7,990 

6,070 

4,950 

3,930 

3,900

233, 200

January

860 

820 

800 

740 

700 

620 

400 

200 

200 

450

600 

800 

780 

720 

750 

750 

740 

750 

760 

790

800 

850 

1,420 

1,200 

820

820 

820 

820 

800 

820 

840

23,240

} :

241

697 

312

e 1, 000 

 e270

e750

I e2,100 

 e650

24,000

November

Mean

charge 

(secondfeet)

1,500 

1,410 

1,290 

1,280 

1,280

1,260 

1,230 

1,280 

1,290 

1,260

1,260 

1,220 

1,160 

1,130 

1,110

1,180 

1,190 

1,190 

1,120 

1,120

1,120 

1,070 

1,060 

1,030 

1,090

1,130 

1,130 

1,130 

1,110 

1,080

35,710

Suspended sediment

Mean 

concentration 

(ppm)

1,020 

883 

1,030 

810 

893

1,050 

899 

906 

975 

1,060

874 

926 

1,100 

999 

1,190

1,130 

799 

682 

733 

674 

857 

900 

1,100 

820 

700

710 

862 

870 

743

Tons 

per 

day

4,130 

3,360 

3,590 

2,800 

3,080

3,570 

2,980 

3,130 

3,400 

3,600

2,970 

3,050 

3,440 

3,040 

3,560

3,600 

2,560 

2,190 

2,220 

2,640 

2,590 

2,600 

3,150 

2,280 

2,060

2,160 

2,630 

2,650 

2,230 

e2,000

87, 260

February

820 

820 

820 

840 

870

920 

,010 

,060 

,060 

,040

,010 

,000 

,000 

,000 

,010 

,030 

,040 

,040 

,030 

,050 

1,060 

1,070 

1,050 

1,070 

1,150

1,200 

1,300 

1,400

28,770

370

430

295 

402

718 

435

605 

603 

592

e850

 el.OOO

1,210 

el, 000 

820 

1,140

e 1, 700 

2,070 

1,230 

el, 500 

e2, 100

1,960 

2,120 

2,240

34, 200

December

Mean

charge 

(secondfeet)

1,070 

1,000 

944 

840 

808

714 

702 

744 

760 

800

530 

440 

450 

440 

550

700 

800 

900 

860 

840

830 

800 

740 

840 

800

880 

880 

840 

800 

830 

880

24,012

Suspended sediment

Mean 

concentration 

(ppm)

655 

659 

688 

660 

525

508 

598 

550 

803 

682

218 

526

Tons 

per 

day

1,890 

1,780 

1,750 

1,500 

1,140

978 

1,130 

1,100 

1,650 

1,470

e750

31, 100

March

,300 

,220 

,100 

,100 

,160 

,240 

,300 

,080 

980 

930

930 

880 

760 

808 

1,020 

1,100 

1,170 

1,240 

1,110 

1,110 

1,060 

1,040 

1,030 

1,030 

936

928 

904 

848 

784 

816 

744

31,658

830 

672 

450 

583 

910 

1,400 

1,910 

1,190 

960 

880

850 

1,940 

1,420

1,410 

1,800 

2,920 

2,020 

2,500 

2,340 

2,400 

2,150 

1,860 

1,790 

1,300

1,070 

1,000 

1,000 

855 

753 

700

--

2,910 

2,210 

1,340 

1,730 

2,850

4,690 

6,700 

3,470 

2,540 

2,210

2,130 

4,610 

2,910 

e2,840 

3,880 

5,350 

9,220 

6,760 

7,490 

7,010 

6,870 

6,040 

5,170 

4,980 

3,280

2,660 

2,440 

2,290 

1,810 

el, 660 

el, 410

121,500
MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

BIGHORN RIVER NEAR MANDERSON, WYO. Continued

Suspended sediment, water year October 1949 to September 1950--Continuecf

Day

2

15 

19

9n

22

oq

97

29

31 

TotalQ

Q

13

17 

19 

20 

22

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

April

Mean

charge 

(secondfeet)

720 

768 

888 

792 

848

754 

684 

672 

672 

800

987 

872 

728 

702 

594

714 

1,010 

987 

987 

969 

920 

720 

696 

944 

1,030

880 

594 

654 

978 

987

24,551

Suspended sediment

Mean 

concentration 

(ppm)

977 

1,260 

2,180 

3,530 

2,730 

2,200 

1,940 

1,620 

2,490 

2,380

2,740 

2,720 

1,700 

2,090 

1,500

1,430 

2,510 

2,490 

2,090 

1,740

1,700 

1,150 

970 

1,490 

1,950

1,210 

651 

812 

1,900 

1,550

Tons 

per 

day

1,900 

2,610 

5,230 

7,550 

6,250

4,480 

3,580 

2,940 

4,520 

5,140

7,300 

6,400 

3,340 

3,960 

2,400

2,750 

6,840 

6,640 

5,570 

4,550 

4,220 

2,230 

1,820 

3,800 

5,420

2,870 

1,040 

1,430 

5,010 

4,130

125,900

July

5,390 

6,290 

6,770 

7,410 

7,760

7,620 

7,050 

6,670 

6,170 

5,610 

5,310 

5,290 

5,310 

4,820 

4,180 

»>720 

3,260 

3,070 

2,580 

2,330

2,050 

2,000 

2,050 

2,030 

2,190

2,310 

2,420 

2,170 

2,350 

2,450 

2,530

131, 160

2,420 

2,700 

3,480 

4,380 

4,190

5,910 

3,020 

2,420 

2,020 

2,090 

2,120 

2,950 

2,100 

1,900 

1,930

1,930 

1,910 

2,280 

2,480 

2,070

2,030 

1,890 

2,000 

2,310 

3,000

2,460 

9,250 

8,020 

4,660 

4,440 

4,720

~

35, 200 

45, 900 

63,600 

87,600 

87, 800

122, 000 

57, 500 

43,600 

33,600 

31,700 

30,400 

42, 100 

30,100 

24,700 

21,800

19, 400 

16, 800 

18, 900 

17, 300 

13,000

11,200 

10, 200 

11, 100 

12,700 

17,700

15,400 

s 56, 200 

47,000 

29, 600 

29, 400 

32,200

1,116,000

Total discharge for year (second-foot-day 

Total load for year (tons) ..............

May

Mean

charge 

(second - 

feet)

1,230 

1,080 

1,110 

960 

928

928 

960 

1,140 

1,110 

1,150

969 

816 

708 

606 

606

960 

1,550 

1,970 

2,070 

2,360

1,740 

1,420 

1,370 

1,890 

3,060

3,400 

2,640 

2,170 

2,530 

3,340 

2,730

49,501

Suspended sediment

Mean 

concentration 

(ppm)

6,900 

7,110 

8,080 

4,370 

2,180

1,760 

2,520 

5,590 

5,010 

3,800

2,970 

2,150 

1,750 

1,680 

2,800

4,580 

5,400 

6,000 

6,050 

6,100

3,420 

2,450 

2,210 

3,670 

5,880

5,580 

3,130 

2,220 

2,680 

3,750 

2,700

Tons 

per 

day

22,900 

20,700 

24,200 

11,300 

5,460

4,410 

6,530 

17,200 

15,000 

11,800

7,770 

4,740 

3,340 

2,750 

4,590

11,900 

22,600 

31,900 

33,800 

38, 900

16, 100 

9,390 

8,180 

18,700 

48,600

51,200 

22,300 

13,000 

18,300 

33,800 

19, 900

561, 300

August

2,330 

2,070 

1,860 

1,660 

1,470

1,400 

1,350 

1,280 

1,100 

872 

708 

636 

1,240 

888 

960

880 

768 

642 

535 

505

500 

525 

552 

530 

525

465 

404 

408 

416 

424 

436

28, 339

3,280 

2,950 

2,870 

2,830 

4,930

5,070 

2,700 

2,600 

2,460 

2,120 

2,100 

3,140 

28,000 

8,000 

3,840

3,090 

2,710 

2,440 

2,120 

2,040

2,090 

2,230 

2,300 

2,160 

1,050

850 

1,400 

1,410 

1,380 

1,350 

1,480

--

20,600 

16, 500 

14, 400 

12,700 

19,600

19, 200 

9,850 

8,990 

7,300 

4,990 

4,010 

5,390 

93, 700 

19,200 

9,950

7,340 

5,610 

4,230 

3,060 

2,780

2,820 

3,160 

3,430 

3,090 

1,490

1,070 

1,530 

1,550 

1,550 

1,540 

1,740

312,400

June

Mean

charge 

(secondfeet)

2,920 

4,160 

4,730 

5,010 

4,010 

3,640 

4,370 

6,350 

7,510 

5,950

4,540 

3,910 

4,200 

5,370 

6,150

6,410 

6,970 

7,580 

8,280 

7,890 

7,660 

7,720 

7,830 

8,140 

8,230

7,930 

7,300 

5,510 

5,130 

5,290

180, 690

Suspended sediment

Mean 

concentration 

(ppm)

2,600 

5,600 

5,480 

4,000 

2,910

2,880 

3,810 

5,720 

5,280 

3,890

3,130 

2,880 

3,340 

3,820 

3,620

3,120 

3,860 

3,940 

4,330 

3,920

4,560 

2,940 

2,790 

2,480 

2,530

2,230 

1,960 

2,200 

2,200 

2,050

Tons 

per 

day

20,500 

62, 900 

70, 000 

54, 100 

31, 500

28, 300 

44, 900 

98, 100 

107, 000 

62, 500

38,400 

30,400 

37, 900 

55, 400 

60, 100 

54,000 

72,600 

80, 500 

96, 800 

83,500

94, 300 

61,300 

59,000 

54, 500 

56, 200

47,700 

38, 600 

32,700 

30,500 

29,300

1,694,000

September

412 

357 

336 

330 

321

309 

306 

309 

324 

392 

1,010 

1,420 

1,890 

1,780 

1,780

2,030 

2,200 

2,050 

2,070 

2,260 

3,590 

3,420 

2,660 

2,380 

2,220

2,030 

1,800 

1,610 

1,540 

1,590

44,726

1,910 

1,540 

1,190 

1,250 

1,300

1,300 

1,360 

1,380 

1,420 

1,620 

16, 900 

14, 200 

9,270 

5,660 

5,150

8,860 

5,360 

3,540 

3,870 

3,950

14, 900 

21,600 

6,550 

4,070 

3,490

3,080 

2,240 

1,950 

2,100 

2,250

2,120 

1,480 

1,080 

1,110 

1,130

1,080 

1,120 

1,150 

1,240 

1,710 

S 56, 600 

54,400 

47,300 

27,200 

24, 800

48, 600

19J 600 

21,600 

24,100 

144, 000 

s 218, 000 

47,000 

26,200 

20,900 

16,900 

10,900 

8,470 

8,730 

9,650

880, 000

3) ...................................................... 647, 139

.... ................................................... 5, 220, 000

s Computed by subdividing day.
YELLOWSTONE RIVER BASIN Continued 

BIGHORN RIVER NEAR MANDERSON, WYO. Continue

Particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Oct. 3, 1949 ...........

Oct. 28 ................

Mar. 30 ................

Mav 8 .................

Time

2:50 p.m. 

2:50 p.m. 

3:00 p. m. 

9:05 a. m. 

9:45 a. m.

9:45 a.m. 

1:50 p.m. 

1:50 p.m. 

10:30 a. m. 

10:30 a. m.

9:25 a.m. 

9:40 a. m. 

9:40 a. m. 

11:30 a.m. 

11:30 a.m.

9:35 a. m. 

9:35 a. m. 

3:00 p. m. 

3:20 p. m. 

3:20 p. m.

4:55 p. m. 

11:50 p.m. 

10:10 a.m. 

10:10 a.m. 

3:35 p.m.

11:10 a.m. 

11:10 a.m. 

9:40 a.m. 

?:45 p. m. 

3:30 p.m.

Discharge 

(secondfeet)

1,540 

1,540 

1,480 

1,530 

1,530

,530 

,480 

,480 

,520 

,520

1,480 

1,270 

1,270 

1,340 

1,340

1,130 

1,130 

1,150 

a 1,100 

a 1,100

808 

800 

808 

808 

1,010

996 

996 

690 

996 

1. 170

Suspended sedim

Concentration 

of sample 

(ppm)

2,980 

2,980 

1,810 

1,960 

1,420

1,420 

1,300 

1,300 

1,430 

1,430

1,280 

1,060 

1,060 

901 

901

696 

696 

655 

1,810 

1,810

684 

680 

2,200 

2,200 

2,830

2,450 

2,450 

729 

l,84n 

7,690

Concentration 

of suspension 

analyzed 

(ppm)

1,110 

1,020 

731 

1,380 

948

840 

781 

745 

1,000 

993

466 

1,420 

1,290 

1,060 

1,200

1,070 

919 

2,010 

1,370 

1,480

1,470 

1,430 

2,420 

836 

7,510

1,510 

1,440 

1,600 

B.fifin 

6,670

Percent finer 

0.002

6 

7

7

2 

2

6 

15

17 

6

0.004

15 

14 

3 

12

20 

20

3 

4 

9

3

6 

10 

8 

10 

21

50 

47 

18 

63 

50

51 

9 

47 

57

0.008

28 

23 

6 

18 

12

12 

4 

10 

27 

23

6 

10 

15 

7 

8

10 

13 

10 

19 

28

32 

76

44 

1

0.016

41 

36 

14 

24 

18

16

12 

12 

34 

27

11

18 

21 

12 

12

16 

20 

15 

32 

39

68 

62 

86 

86 

76

73 

63 

67 

70 

76

0.

a Mean daily discharge.
YELLOWSTONE RIVER BASIN Continued 

BIGHORN RIVER NEAR MANDERSON, WYO. Continue

Particle-size analyses of suspended sediment, water year October 1949 to Sep

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection

May 8, 1950 ............

May 16 ................

May 26 ................

July 3 ..................

July 27 ................

July 27 ................

A ncr Q

Aug. 13 ................

Aug. 18 ...............

Sept. 13 ...............

Sept. 16 ...............

Sept. 22 ...............

Sept. 22 ..............

Sept. 28 ...............

Time

3:30 p.m. 

11:15 a.m. 

10:20 a. m. 

10:55 a.m. 

4:40 p. m.

2:10 p.m. 

2:10 p.m. 

9:40 a.m. 

11:20 a.m. 

11:20 a.m.

3:45 p. m. 

2:05 p. m. 

2:05 p. m. 

9:40 a. m. 

5:50 p.m.

2:05 p. m. 

2:05 p.m. 

9: 10 a. m. 

8:00 a. m. 

4:00 p. m.

1:55 p. m. 

1:55 p. m. 

10:20 a. m. 

4:30 p.m. 

9:27 a.m.

1:10 p. m. 

9:00 a. m. 

12:20 p. m. 

12:20 p. m.

8:40 a. m.' 

3:40 p. m. 

8:00 a. m. 

9:25 a. m.

Discharge 

(secondfeet)

1,170 

880 

3,610 

4,290 

7,130

6,410 

6,410 

7,680 

6,530 

6,530

3,000 

2,540 

2,540 

2,260 

2,050

1,090 

1,090 

1,540 

896 

624

540 

540 

318 

1,410 

1,410

2,000 

2,020 

4,380 

4,380

3,680 

3,090 

2,730 

1,710

Suspended sedim

Concentration 

of sample 

(ppm)

7,690 

4,180 

6,030 

5,710 

6,570

2,970 

2,970 

2,760 

4,070 

4,070

1,900 

10,200 

10,200 

2,710 

7,650

2,440 

2,440 

37, 600 

9,200 

2,400

2,200 

2,200 

1,300 

23, 500 

17/100

8,220 

9,920 

14,800 

14,800 

21,800 

13,600 

6,770 

1,910

Concentration 

of suspension 

analyzed 

(ppm)

5,320 

5,690 

6,080 

5,310 

3,750

1,560 

1,130 

4,180 

2,930 

2,570

3,380 

9,540 

3,600 

6,780 

5,310

2,420 

2,220 

6,830 

6,820 

6,420

2,190 

2,740 

4,150 

8,720 

6,280

5,980 

6,650 

12, 200 

5,580

7,860 

9,790 

4,070 

2,600

Percent finer t

0.002

45

12

3 

17

0 

57

3 

53

59

0.004

57 

51 

19 

21 

26

22

25 

9 

24

31 

1 

69 

43 

48

5 

69 

50 

62 

67

3 

73 

81 

56 

60

35 

49 

0 

14

47 

43 

40 

20

0.008

66

26

36 

30

5 

73

33 

74

34 

87

2 

20

0.016

77 

74 

30 

34 

41

32 

27 

37 

47 

36

45 

85 

87 

62 

73

91 

86 

79 

87 

88

91 

97 

98 

79 

83

56 

66 

28 

30

72 

64 

55 

30

0.0
YELLOWSTONE RIVER BASIN Continued 

BIGHORN RIVER AT KANE, WYO.

LOCATION. At gaging station at bridge on State Highway 14, half a mile upstream from Shoshone Rive

DRAINAGE AREA. 15,900 square miles.

RECORDS AVAILABLE. Chemical analyses: December 1949 to September 1950.

Water temperatures: July to September 1949.

Sediment records: March 1946 to September 1950. 

EXTREMES, 1949-50.--Sediment concentrations: Maximum daily, 15,500 ppm Sept. 23; minimum daily, no

Sediment loads: Maximum daily, 200,000 tons June 9; minimum daily, not determined. 

EXTREMES, 1946-50. Sediment concentrations: Maximum daily, 33,000 ppm Apr. 20, Sept. 21, 1948; mi

Sediment loads: Maximum daily, 972,000 tons June 25, 1946; minimum daily, not determined. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply 

Chemical analyses, In parts per million, December 1949 to Septemb

Date of collection

May 19 ...........

Aufi* j

Discharge 

(secondfeet)

1,650 

a 860 

a 1,380 

a 1, 520 

1,660

3,160 

5,910 

a 9, 780 

3,310 

974

Temperature 

<°F)

PH

7.7 

8.1 

7.9 

7.9 

7.8

7.6 

7.9 

7.5 

7.6

7.7

Specific 

conductance 

(micromhos at 

25° C )

980 

1,130 

955 

1,030 

1,160

807 

554 

355 

786 

1,390

Silica 

(Si02 )

16 

26 

25 

24 

35

18 

18 

11 

13 

16

Iron 

(Fe)

0.04 

.02 

.02 

.04 

.04

.02 

.04 

.04 

.04 

.02

Calcium 

(Ca)

90 

112 

86 

91 

98

68 

52 

35 

70 

118

Magnesium 

(Mg)

31 

39 

34 

33 

30

23 

13 

7.7 

17 

31

Sodium 

(Na)

Potassium 

(K)

102 

99 

84 

98 

111

77 

48 

30 

75 

156

Bicarbonate 

(HCO3 )

234 

284 

236 

192 

230

188 

136 

108 

150 

234

3ulfate 

(S04)

338 

375 

300 

371 

375

244 

157 

85 

255 

510

Chloride 

(CD

19 

20 

19 

19 

18

15 

7.0 

4.5 

12 

25

a Mean daily discharge.
MISSOURI RIVER BASIN 

YELLOWSTONE RIVER BASIN--Continued

BIGHORN RIVER AT KANE, WYO. Continued 

Suspended sediment, water year October 1949 to September 1950

Day

2

Q

13

23

90

Total -

2

Q

12

18

22 

23 

24 

25 

26 

27 

28------ 

29 

30 ----- 

31 

TotalOctober

Mean

charge 

(secondfeet)

1,340 

1,290 

1,500 

1,990 

2,000

1,950 

1,940 

1,900 

1,990 

2,090

2,140 

2,060 

2,020 

2,000 

2,010 

2,050 

2,000 

2,060 

2,100 

2,210

2,560 

2,210 

2,170 

2,280 

2,330

2,490 

2,390 

2,300 

2,260 

2,130 

2,020

63, 780

Suspended sediment

Mean 

concentration 

(ppm)

1,550 

2,220 

2,380 

3,540 

2,400

1,710 

1,470 

1,400 

1,370 

1,300

1,490 

1,410 

1,360 

1,440 

1,530 

1,450 

1,450 

1,620 

1,430

2,130 

2,120 

2,410 

2,190 

2,730

3,970 

3,460 

2,730 

1,910 

1,490 

1,290

Tons 

per 

day

5,610 

7,730 

9,640 

19, 000 

13,000

9,000 

7,700 

7,180 

7,360 

7,340

8,610 

7,840 

7,420 

7,780 

8,300

8,030 

7,830 

9,010 

8,110 

68,700

14, 700 

12, 700 

14, 100 

13,500 

17, 200

26, 700 

22, 300 

17, 000 

11,700 

8,570 

7,040

340, 700

January

1,100 

1,100 

1,100 

1,000 

900

860 

700 

400 

400 

500 

600 

800 

1,000 

940 

860

960 

960 

940 

980 

1,000 

1,020 

1,030 

1,050 

1,600 

1,350 

1,050 

960 

960 

980 

1,000 

1,020

29, 120

} _-

104

4 

251

389 

141

--

e850 

L e240 

I e!5

 e850

 el, 200 

\ e460

22, 400

November

Mean

charge 

( second - 

feet)

2,040 

2,020 

1,840 

1,880 

1,910

1,850 

1,860 

1,890 

1,940 

1,880

1,840 

1,830 

1,820 

1,760 

1,780

1,760 

1,770 

1,720 

1,640 

1,570

1,560 

1,540 

1,520 

1,530 

1,540

1,640 

1,710 

1,710 

1,770 

1,700

52, 820

Suspended sediment

Mean 

concentration 

(ppm)

1,100

858 

1,120 

1,690

890 

905 

929 

921 

861

808 

1,020 

825 

793 

794

731

620 

682 

682 

601 

708 

530 

708 

652

551 

690 

561

Tons 

per 

day

6,060 

e5,300 

4,260 

5,690 

8,720 

4,440 

4,540 

4,740 

4,830 

4,370

4,020 

5,040 

4,060 

3,770 

3,820 

3,480 

e 3, 000 

2,880 

3,020 

2,890

2,530 

2,940 

2,180 

2,920 

2,710

e 2, 700 

e 2, 700 

2,540 

3,300 

2,580

116,000

February

1,010 

1,000 

1,000 

1,000 

1,100

1,250 

1,380 

1,400 

1,400 

1,320 

1,300 

1,300 

1,310 

1,320 

1,320

1,320 

1,320 

1,340 

1,360 

1,360

1,360 

1,380 

1,400 

1,380 

1,480 

1,520 

1,600 

1, 680

36,910

332 

384

284 

436

e600 

 el, 300

 el, 700

35,700

r<?cember

Mean

charge 

( second - 

feet)

1,620 

1,610 

1,520 

1,480 

1,270

1,100 

1,050 

1,000 

1,050 

1,000

575 

526 

522 

520 

600 

900 

1,100 

1,200 

1,150 

1,100 

1,050 

1,020 

1,000 

1,100 

1,100

1,200 

1,150 

1,100 

1,100 

1,120 

1,150

32,983

Suspended sediment

Mean 

concentration 

(ppm)

678 

728 

847 

765 

409 

910 

1,290 

1,230

185

80 

120

326

"

Tons 

per 

day

2,960 

3,160 

3,480 

3,060 

1,400

2,700 

3,660 

3,320 

e2,600 

500

124

170

6460 

e 2, 000

 el, 000

48, 000

March

1,700 

1,600 

1,500 

1,450 

1,450

1,500 

1,600 

1,700 

1,520 

1,440 

1,400 

1,210 

1,080 

1,170 

1,270

1,580 

1,820 

1,860 

1,910 

2,100

1,740 

1,800 

1,960 

1,880 

1,730

1,430 

1,370 

1,400 

1,400 

1,370 

1,430

48, 370

753

616 

928 

872

1,100 

1,120 

1,180 

1,230 

1,640

1,560 

2,270 

2,840 

3,100 

2,530 

2,220 

1,750 

1,540 

1,410 

1,260 

982

e 2, 900

1,800 

2,930 

2,990

4,690 

5,500 

5,930 

6,340 

9,300

7,330 

11,000 

15,000 

15, 700 

11,800 

8,570 

6,470 

5,820 

5,330 

4,660 

3,790

169,800
YELLOWSTONE RIVER BASIN 63

YELLOWSTONE RIVER BASIN--Continued 

BIGHORN RIVER AT KANE, WYO. Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

2

13

19

on

21

23

24

Oft

27

no

29

31 

Total -

2

19

1R

20

23

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

1,480 

1,530 

1,460 

1,430 

1,330 

1,420 

1,460 

1,560 

1,730 

1,790

1,700 

1,650 

1,600 

1,660 

1,660

1,660 

1,850 

1,900 

1,820 

1,780 

1,730 

1,640 

1,410 

1,360 

1,460

1,600 

1,420 

1,250 

1,390 

1,630

47,360

Suspended sediment

Mean 

concentration 

(ppm)

1,210 

1,450 

1,630 

1,670 

3,250 

2,670 

3,550 

4,260 

2,520 

2,260

2,690 

2,430 

2,710 

2,380 

1,920

1,450 

2,010 

2,500 

2,600 

1,810

1,950 

2,160 

2,150 

2,260 

1,680

1,630 

1,560 

1,370 

1,360 

1,750

Tons 

per 

day

4,840 

5,990 

6,430 

6,450 

11,700

10, 200 

14,000 

17,900 

11,800 

10,900

12,300 

10,800 

11,700 

10,700 

8,610

6,500 

10, 000 

12, 800 

12,800 

8,700 

9,110 

9,560 

8,190 

8,300 

6,620

7,040 

5,980 

4,620 

5,100 

7,700

277, 300

July

7,970 

8,620 

8,480 

8,920 

9,530 

9,890 

9,190 

8,380 

7,890 

7,410

6,920 

6,920 

6,940 

6,550 

5,740 

4,990 

4,690 

4,310 

3,920 

3,650

3,260 

3,000 

2,930 

3,220 

3,240 

3,500 

3,750 

3,500 

3,350 

3,480 

3,500

177,640

3,060 

3,660 

4,140 

4,100 

5,740 

5,860 

5,240 

3,330 

3,080 

3,239

2,700 

2,570 

3,190 

2,650 

2,480

2,390 

2,300 

2,300 

2,360 

3,730 

2,760 

2,280 

2,880 

9,600 

2,600 

2,000 

2,600 

5,150 

9,000 

6,190 

4,300

~

65,800 

85,200 

94, 800 

98,700 

148,000 

156,000 

130,000 

75, 300 

65,600 

64,600

50,400 

48,000 

59,800 

46,900 

38,400

32, 200 

29,100 

26, 800 

25,000 

36, 800 

24, 300 

18,500 

22,800 

83, 500 

22,800 

18,900 

26, 300 

48, 700 

81,400 

58, 100 

40,600

1,823,000

Total discharge for year (second-foot-day 

Total load for year (tons) .............

May

Mean

charge 

(second - 

feet)

1,590 

1,900 

1,860 

1,840 

1,630 

1,560 

1,530 

1,610 

1,730 

1,630

1,530 

1,380 

1,240 

1,250 

1,360

1,710 

2,220 

2,840 

3,090 

3,290

3,160 

2,840 

3,000 

3,490 

4,220

4,670 

4,330 

3,940 

4,400 

4,550 

4,600

79, 990

Suspended sediment

Mean 

concentration 

(ppm)

1,740 

4,310 

6,120 

7,220 

5,680 

3,490 

4,400 

4,830 

3,450 

4,150

3,250 

2,600 

2,580 

2,110 

2,350 

3,150 

5,690 

6,420 

6,490 

5,590

4,900 

3,780 

3,770 

4,840 

5,840

5,520 

5,000 

4,120 

3,200 

3,630 

4,140

Tons 

per 

day

7,470 

22,100 

30,700 

35,900 

25,000 

14,700 

18,200 

21,000 

16,100 

18, 300

13,400 

9,690 

8,640 

7,120 

8,630

14,500 

34, 100 

49,200 

54,100 

49,700

41,800 

29,000 

30,600 

45,600 

66,500

69,600 

58,400 

43,800 

38,000 

44,600 

51,400

977,800

August

3,350 

2,960 

2,650 

2,390 

2,190 

2,090 

1,780 

1,660 

1,630 

1,510

1,440 

1,420 

1,900 

2,290 

1,650 

1,650 

1,620 

1,580 

1,400 

1,290 

1,280 

1,260 

1,240 

1,270 

1,210 

1,270 

1,250 

1,220 

1,210 

1,150 

1,140

51,950

3,310 

2,780 

2,490 

2,380 

2,420

7,300 

6,860 

3,000 

2,320 

2,110

1,980 

2,380

11,200 

13,200

4,900 

3,400 

2,580 

2,560 

2,200

1,950 

1,810 

1,770 

2,070 

1,940 

2,200 

1,910 

2,160 

1,500 

1,570 

1,650

30,000 

22,200 

17,800 

15,400 

14,300

41,200 

33,000 

13,400 

10,200 

8,600

7,700 

8,900 

e 30, 000 

69,300 

58,800 

21,800 

14,900 

11,000 

9,680 

7,660

6,740 

6,160 

5,930 

7,100 

6,340 

7,550 

6,450 

7,110 

4,900 

4,870 

5,080

514, 100

June

Mean

charge 

(secondfeet)

4,220 

5,060 

6,240 

5,940 

6,110 

5,840 

7,050 

10, 000 

10, 800 

9,250

7,020 

6,320 

7,260 

8,380 

9,470

9,750 

10,400 

11, 200 

11,500 

11,200

10, 400 

10, 300 

10,600 

10, 300 

10, 800

11,300 

9, 780 

8,210 

8,130 

8,000

260,830

Suspended sedi-nent

Mean 

concentration 

(pptn)

3,320 

4,510 

8,200 

5,590 

4,920

4,380 

5,980 

6,550 

6,850 

5,270

4,710 

4,200 

4,200 

4,910 

4,640

4,210 

5,850 

5,990 

5,320 

4,810

4,670 

4,340 

3,720 

3,270 

3,660

3,910 

3,390 

3,750 

3,750 

3,490

Tons

P'T

d37,800 

61,600 

138,000 

89,600 

81,200 

69,100 

114,000 

177,000 

200,000 

132,000

89, 300 

71,700 

82,300 

111,000 

119,000

111,000 

164, 000 

181,000 

165, 000 

145,000

131,000 

121,000 

106,000 

90, 900 

107,000

119,000 

89, 500 

83, 100 

82,300 

75,400

3,345,000

September

,100 

,130 

,100 

,050 

,000

974 

974 

956 

992 

1,080

1,390 

2,620 

2,560 

2,900 

2,810

2,900 

2,950 

2,840 

2,840 

2,780

2,880 

4,600 

3,880 

3,410 

3,310 

3,030 

2,680 

2,560 

2,580 

2,730

68,606

,460 

,720 

,740 

,480 

,440

,130 

,170 

,180 

,190 

1,820

3,100 

8,750 

12,500 

7,920 

4,980 

4,980 

7,050 

3,600 

2,400 

2,580

2,620 

9,730 

15,500 

5,800 

3,570 

2,620 

2,420 

1,960 

1,910 

1,920

--

s) ..................................................

4,340 

5,250 

5,170 

4,190 

3,890

2,970 

3,080 

3,040 

3,190 

5,310

11,600 

61,900 

86,400 

62,000 

37,800

39,000 

56, 200 

27, 600 

18,400 

19, 400

20,400 

121,000 

162,000 

53,500 

31,900 

21,400 

17, 500 

13, 500 

13,300 

14,100

£29, 300

950, 359 

8,599,000
YELLOWSTONE RIVER BASIN Continued 

BIGHORN RIVER AT KANE, WYO.--Continued

Particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Oct. 22 ...............

Oct. 27 ...............

June 16 ...............

Time

9:00 a.m. 

1:50 p.m. 

1:50 p.m. 

10:55 a.m. 

5:45 p.m.

11:00 a.m. 

12:55 p.m. 

12:55 p. m. 

2:45 p.m. 

2:45 p.m.

11:10 a.m 

11:10 a.m 

4:15 p.m. 

4:15 p.m. 

11:30 a.m

7:50 a.m. 

3:10 p.m. 

7:45 a.m. 

8:20 a.m 

8:20 a.m

1:05 p. m 

1:05 p.m 

3:05 p. m 

2:20 p.m 

12:50 p.m

6:15 p.m 

2:35 p.m 

2:50 p.m 

11:40 a.m

Discharge 

(second - 

feet)

1,360 

1,910 

1,910 

2,050 

2,100

2,130 

2,370 

2,370 

1,780 

1,780

1,900 

1,900 

1,730 

1,730 

1,910

1,420 

1,650 

1,880 

1,380 

1,380

1,990 

1,990 

1,630 

2,290 

3,160

3,050 

5,510 

5,810 

9.560

Suspended sedim

Concentration 

of sample 

(ppm)

1,200 

1,470 

1,470 

1,280 

1,340

1,810 

3,240 

3,240 

846 

846

794 

794 

734 

734 

1,070

1,510 

2,400 

2,410 

1,610 

1,610

7,350 

7,350 

4,390 

6,940 

5,790

3,970 

4,540 

3,850 

3.770

Concentration 

of suspension 

analyzed 

(ppm)

511

1,400 

1,320 

751 

933

717 

1,140 

1,280 

973 

1,070

871 

934 

1,030 

1,120 

1,210

830 

5,580 

1,490 

1,220 

550

6,260 

. 2, 280 

12, 100 

4,800 

2,950

2,450 

6,360 

8,470 

6.340

Percent finer t

0.002

6 

11

8 

10 

8

4 

33

4 

9

34 

35

62

0.004

13 

15 

14 

16 

13

9 

10 

42 

5

7

8 

13 

1 

7 

24

39 

47 

37 

41 

36

70 

56 

48 

26

26 

17 

21 

9

0.008

16 

24 

20 

20 

18

16 

41 

50 

10 

12

15 

19 

5 

10

49 

46

2 

76

0.016

23 

33 

28 

27 

24

24 

69 

57 

16 

14

23 

25 

10 

12 

28

49 

67 

54 

59 

56

83 

82 

75 

66 

45

44 

25 

34 

15

0.0
Aug. 1 ...............

Sept. 28 ..............

10: 45 a.m.

1:40 p.m.

10, 150

10, 150

9,330

9,330

4,200

a 3, 750

a 3, 500

3,330

3,330

1,760

1,510

1,960

1,640

1,580

1,200

974

2,860

2,810

2,830

4,710

4,710

2,540

4,290

4,290

4,130

4,130

2,100

2,640

8,780

3,380

3,380

5,570

2,130

15,000

15,000

2,340

1,880

1,040

6,580

6,580

13,600

12,400

8,870

2,250

7,420

7,420

1,800

2,020

1,680

2,780

2,030

3,620

4,500

6,270

2,710

1,980

2,170

5,640

9,830

11, 100

8,320

4,560

2,420

5,550

4,670

4,800

8,050

6,290

5,170

6,380

3,420

2,920

2,580

7

269

163

36____1

32_1

23

9

31

16

21

27

36

625

48

68

56

65

66

46

58

551

42

65

50

60

354

27

47

31

33

36

21__

32

57_____4

53__9

36

--

47

43

29

28

41

51

85

67

66

86

72

91

92

68

71

68

64

64

83

68

76

52

54

51

66

45

a Mean daily discharge.
YEIAOWSTONE RIVER BASIN Continued

BIGHORN RIVER AT BIGHORN, MONT. 

(Formerly known as Bighorn River near Custer, Mont.)

LOCATION. At bridge on U. S. Highways 10 and 12, three-quarters of a mile upstream from mouth, 1 m

miles downstream from gaging station near Custer, Mont. 

RECORDS AVAILABLE. Water temperatures: April 1949 to September 1950.

Sediment records: July 1947 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum, 73°F Aug. 5; minimum, freezing point on many days 

Sediment concentrations: Maximum daily, 8,700 ppm Sept. 25; minimum daily, not determined.

Sediment loads: Maximum daily, 254,000 tons June 10; minimum daily, 136 tons Dec. 11. 

EXTREMES, 1947-50. Sediment concentrations: Maximum daily, 20,000 ppm Sept. 23, 1948; minimum dai

Sediment loads: Maximum daily, 539,000 tons June 4, 1948; minimum daily, 136 tons Dec. 11, 1949.

REMARKS. Discharge records for gaging station near Custer, for water year October 1949 to Septembe

inflow between gaging station and sampling point except small amounts of irrigation waste water

Chemical analyses, In parts per million, December 1949 to September 

Date of collection

Dec. 6, 1949.......

May 1

Sept. 4 ............

Discharge 

(secondfeet)

2,520 

a 2, 050 

a3,350 

3,000

2,940 

5,790 

12, 000 

4,370 

1,820

Temperature 

(°F)

PH

7.9 

7.5 

7.6 

7.8

7.7 

7.4 

7.3 

7.7 

7.5

Specific 

conductance 

(micromhos at 

25° C)

1,090 

960 

915 

1,040

1,110 

643 

476 

874 

1,210

Silica 

(SiO,)

17 

16 

24 

25

17 

20 

14 

17 

17

Iron

(Fe)

0.04 

.02 

.02 

.04

.04 

.04 

.07 

.02 

.02

Calcium 

(Ca)

90 

88 

79 

96

90 

56 

45 

75 

96

Magnesium 

(Mg)

32 

30 

28 

29

30 

17 

12 

21 

32

Sodium 

(Na)

Potassium 

(K)

110 

90 

86 

107

113 

58 

43 

86 

142

Bicarbonate 

(HCOS )

246 

245 

200 

232

224 

160 

124 

168 

219

Sulfate 

(SO,)

352 

298 

301 

360

363 

183 

140 

290 

453

Chlo

ride

(Cl)

15 

17 

12 

16

20 

8

5

11 

17

a Mean daily discharge.
YELLOWSTONE RIVER BASIN 67

YELLOWSTONE RIVER BASIN Continued 

BIGHORN RIVER AT BIGHORN, MONT.--Continued

Temperature (°F) of water, water year October 1949 to September 1950 

^nee-daily temperature measurement between 8 a. m. and 9 a. raj7

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

Average

Oct.

57

57

54

54

55

52

50

47

45

45

42

45

43

44

45

47

45

43

40

36

34

34

40

40

41

..

43

44

44

44

43

45

Nov.

44

43

46

43

42

42

41

42

45

45

45

42

44

42

42

41

40

41

41

42

36

40

38

38

40

40

41

42

42

40

42

Dec.

37

38

37

34

35

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

--

33

-

Jan.

31

Feb. Mar. Apr.

45

45

--

45

47

50

53

57

53

48

47

50

51

53

48

45

46

45

45

43

38

48

May

44

46

42

42

45

46

48

45

45

47

53

55

56

57

52

61

60

60

55

59

56

60

62

56

57

56

59

60

55

59

57

53

June

57

55

57

59

60

64

60

61

53

56

60

64

64

67

66

66

65

64

62

65

66

69

65

65

63

62

67

66

67

69

63

July

70

70

70

70

69

..

..

--

70

68

68

60

68

60

68

68

69

69

71

72

71

65

62

~

Aug.

68

65

68

69

73

69

66

69

68

67

69

69

67

69

69

70

67

67

68

62

62

70

66

64

65

65

64

65

64

65

66

67

Sept.

66

68

70

69

70

69

69

65

62

59

56

55

51

53

51

50

54

57

57

60

57

59

69

60

69

60

57

55

52

44

60
MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

BIGHORN RIVER. AT BIGHORN, MONT. Continued

Suspended sediment, water year October 1949 to September 1950

Day

1ft

99

94

97

9P

Total21 

22 

23 

24 ------ 

25 ......

26 

27 ------ 

28 ------ 

29 ----- - 

30 ------ 

31 .

Total -

October

Mean

charge 

(secondfeet)

2,360 

2,370 

2,410 

2,410 

2,760

2,910 

2,930 

2,050 

3,060 

3,080

3,230 

3,230 

3,140 

3,140 

3,100

3,120 

3,060 

3,080 

3,290 

3,570

3,660 

4,080 

4,290 

3,880 

4,000

4,210 

4,260 

4,110 

4,000 

3,860 

3,760

103,310

Suspended sediment

Mean 

concentration 

(ppm)

693 

648 

581 

628 

998 

998 

1,150 

1,040 

875 

836

817 

928 

850 

945 

838 

845 

808 

741 

862 

1,050

939 

1,710 

2,220 

1,680 

1,630

2,180 

2,580 

3,120 

2,960 

2,070 

1,240

Tons 

per 

day

4,410 

4,150 

3,780 

4,080 

7,440

7,840 

9,100 

8,280 

7,230 

6,950

7,130 

8,100 

7,210 

8,010 

7,010

7,120 

6,680 

6,160 

7,650 

10, 100 

9,280 

18,800 

25,700 

17,600 

17,600

24, 800 

29,700 

34,600 

32,000 

21,600 

12,600

382,700

January

1,700 

1,650 

1,700 

1,700 

1,800

1,800 

1,800 

1,750 

1,700 

1,600 

1,600 

1,650 

1,600 

1,550 

1,460 

1,460 

1,460 

1,460 

1,460 

1,460 

1,600 

1,780 

1,850 

1,820 

1,780 

1,750 

1,710 

1,680 

1,700 

1,720 

1,730

51,480

264

e240 

e240 

e260 

e300 

eSOO

e600 

e700 

eSOO 

e900 

el, 000 

1,140 

el, 200 

el, 100 

el, 000 

el, 000

e900

e 1, 100 

el, 300 

el, 400 

el, 300 

el, 200 

el, 100

U 1,000 

e 1, 100

28,000

November

Mean

charge 

( second - 

feet)

3,610 

3,540 

3,520 

3,430 

3,230 

3,320 

3,230 

3,210 

3,270 

3,360

3,340 

3,250 

3,210 

3,160 

3,210 

3,060 

3,040 

3,040 

2,990 

3,040

2,970 

2,870 

2,890 

2,890 

2,910

2,850 

2,910 

2,910 

2,910 

2,910

93,990

Suspended sediment

Mean 

concentration 

(ppm)

983 

774 

672 

576 

632

671 

574 

549 

581 

529

533 

537 

585 

556 

456

526 

546 

452 

432 

443

423 

478 

421 

456 

352

273 

320 

340 

353 

352

Tons 

per 

day

9,580 

7,400 

6,390 

5,340 

5,510

6,020 

5,010 

4,760 

5,130 

4,800

4,810 

4,710 

5,070 

4,750 

3,840

4,340 

4,480 

3,710 

3,490 

3,640 

3,390 

3,700 

3,280 

3,560 

2,770

2,100 

2,510 

2,670 

2,770 

2,770

132, 300

February

1,740 

1,750 

1,760 

1,770 

1,780

1,880 

1,970 

2,050 

2,130 

2,200 

2,210 

2,220 

2,220 

2,240 

2,300

2,400 

2,500 

2,600 

2,720 

2,910

2,960 

3,000 

3,020 

3,100 

3,300

3,700 

6,000 

5,800

74,230

237 

191

399 

374 

494 

700 

761

1,440

--

el, 100 

el, 200

1,260 

1,060 

el, 100 

e 1, 200 

e 1, 300 

el, 400 

e 1, 500 

el, 700 

el, 800

el, 900 

e 2, 100 

2,600 

2,750 

3,880

5,600 

6,160 

e 7, 000 

e8,000 

e9,500

e 14, 000 

23,300 

e20,000

126,000

December

Mean

charge 

(secondfeet)

2,890 

2,840 

2,840 

2,800 

2,630

2,530 

2,480 

2,450 

2,530 

2,500

1,440 

1,310 

860 

958 

1,660

2,280 

2,000 

1,950 

2,000 

2,000

2,050 

2,050 

2,000 

1,950 

1,850

1,900 

1,900 

1,850 

1,800 

1,850 

1,800

63,948

Suspended sediment

Mean 

concentration 

(ppm)

287 

327 

314 

366 

376

358 

224 

98 

272 

83

35 

66 

62 

299 

348

239 

312 

413 

144 

98 

102

40 

73

40 

31 

52

Tons 

per 

day

2,240 

2,510 

2,410 

2,760 

2,670

2,450 

1,500 

648 

1,860 

560

136 

233 

144 

774 

1,560

1,470 

1,680 

2,170 

778 

529

565 

6550 

e440 

e320 

e300

205 

374 

e300 

194 

155 

253

32,740

M^-ch

5,400 

5,400 

5,600 

5,800 

5,600

5,400 

5,200 

4,800 

3,900 

3,800 

3,500 

3,200 

3,200 

3,600 

3,800

4,400 

4,400 

4,200 

4,000 

4,800

5,200 

6,000 

5,800 

5,800 

6,200

5,400 

5,800 

6,400 

6,000 

5,000 

2,590

150, 190

948 

949 

1,190 

1,200

1,040 

1,050 

1,040

2,500 

1,680

2,190 

2,440 

1,800 

1,650 

1,600 

1,310 

2,450 

?, 130

13,800 

13, 800 

18,000 

18,800 

e 17, 000

15,200 

14,700 

13,500 

e 13, 000 

e 12, 000 

e 12, 000 

ell, 000 

ell, 000 

e 14. 000 

e 17, 000

e 18, 000 

e 18, 000 

e 18, 000 

e 20,000 

e 26, 000 

35,100 

27,200 

e 27, 000 

34,300 

40, 800

26,200 

25,800 

27,600 

21,200 

33,100 

14,900

628,000

e Estimated.
YELLOWSTONE RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

BIGHORN RIVER AT BIGHORN, MONT.--Continued

Suspended sediment, water year October 1949 to September 1950 Continued

69

Day

g

1fl

19

22

AO

28

on

Totalg

12

19

20

21

23

24 

25 

26 - ~ 

27 

28 

29 

30 

31 .....

Total

April

Mean

charge 

(secondfeet)

2,630 

2,710 

2.940 

3^530 

3,440

3,230 

3,180 

3,250 

3,340 

3,440

3,460 

3,490 

3,460 

3,370 

3,160

3,050 

2,980 

3,140 

3,280 

3,340

3,250 

2,940 

2,790 

2,570 

2,360

2,530 

2,590 

2,490 

2,320 

2,360

90, 620

9,580 

9,680 

10, 300 

11,500 

12,000 

12,300 

12, 600 

12,400 

12,600 

12,800

12,600 

12,300 

12,400 

12,200 

11,300

9,000 

7,970 

7,810 

7,230 

6,720

6,210 

5,670 

5,320 

5,170 

5,490 

5,060 

4,860 

4,750 

4,630 

4,610 

5,490

272, 550

Suspended sediment

Mean 

concentration 

(ppm)

1,630 

1,430 

1,720 

2,380 

1,810

1,630 

1,540 

2,430 

2,450 

2,800

2,500 

1,900 

1,690 

1,750 

1,600

1,540 

1,520 

1,450 

1,550 

1,700 

1,560 

1,350 

1,260 

1,240 

1,170

1,250 

1,370 

1,160 

939 

1,010

--

Tons 

per 

day

11,600 

10, 500 

13,700 

22, 700 

16, 800

14,200 

13,200 

21,300 

22, 100 

26,000

23,400 

17, 900 

15, 800 

15,900 

13,700 

12, 700 

12, 200 

12,300 

13,700 

15,300 

13,700 

10, 700 

9,490 

8,600 

7,460

8,540 

9,580 

7,800 

5,880 

6,440

413,200

July

2,660 

2,540 

3,020 

4,000 

3,910 

3,450 

3,920 

3,680 

3,840 

3,260

2,940 

2,610 

2,590 

2,380 

2,480

2,550 

2,370 

1,910 

1,820 

1,770

1,780 

2,050 

1,500 

1,570 

1,530 

3,700 

1,870 

1,620 

1,730 

2,370 

5,920

--

68,800 

66,400 

84,000 

124,000 

127,000

115,000 

133,000 

123,000 

131,000 

113,000

100, 000 

86,700 

86,700 

78,400 

75,700

62, 000 

51,000 

40, 300 

35,500 

32, 100

29,800 

31,400 

21,600 

21,900 

22,700

50,500 

24,500 

20, 800 

21,600 

29, 500 

87, 800

2,096,000

Total discharge for year (second-foot-day 

Total load for year (tons) ..............

May

Mean

charge 

(second - 

feet)

3,180 

3,140 

3,630 

3,930 

3,700

3,320 

2,980 

2,810 

2,690 

2,710

2,590 

2,440 

2,420 

2,060 

2,020

2,000 

2,080 

2,840 

3,760 

4,010

4,060 

4,440 

4,040 

4,170 

4,830 

5,850 

6,060 

5,730 

5,140 

5,640 

6,120

114,290

Suspended sediment

Mean 

concentration 

(ppm)

1,720 

1,430 

2,170 

2,850 

4,000

5,070 

3,510 

2,380 

2,200 

2,460

2,120 

1,860 

2,520 

1,690 

1,480

1,320 

1,580 

1,890 

3,010 

3,680 

3,100 

2,840 

2,220 

2,180 

2,540

3,820 

3,410 

2,890 

2,340 

2,350 

2,460

--

Tons 

per 

day

14,800 

12, 100 

21,300 

30, 200 

40,000

45,400 

28, 200 

18,100 

16,000 

18,000 

14,800 

12,300 

16, 500 

9,400 

8,070

7,130 

8,870 

14,500 

30, 600 

39, 800

34,000 

34, 000 

24,200 

24,600 

33,100

60, 300 

55,800 

44, 700 

32,500 

35,800 

40, 600

825,700

August

5,610 

5,260 

4,630 

4,140 

4,040 

3,660 

3,440 

3,250 

2,960 

2,790

2,920 

3,140 

3,320 

3,830 

4,970

3,960 

3,560 

3,340 

3,070 

2,840

1 2,570 

2,490 

2,470 

2,440 

2,420

2,400 

2,380 

2,380 

2,290 

2,060 

2,030

100, 660

4,020 

2,790 

2,320 

1,860 

1,630

1,420 

1,340 

1,380 

1,320 

2,420

1,520 

1,480 

1,560 

2,820 

4,060 

3,060 

5,450 

3,810 

1,750 

1,350

1,210 

1,060 

1,030 

1,010 

940

1,200 

1,270 

1,280 

1,040 

902 

864

--

60,900 

39,600 

29,000 

20, 800 

17,800

14,000 

12, 400 

12, 100 

10,500 

18,200

12,000 

12,500 

14, 000 

29, 200 

54, 500

32,700 

52,400 

34,400 

14, 500 

10, 400

8,400 

7,130 

6,870 

6,650 

6,140

7,780 

8,160 

8,220 

6,430 

5,010 

4,730

577,400

June

Mean

charge 

(secondfeet)

6,340 

5,940 

6,560 

7,970 

7,320

7,520 

7,450 

9,140 

11,700 

13, 100 

11,300 

9,140 

8,560 

9,860 

10, 900 

11,400 

11,700 

12,100 

13,200 

13,700

13,200 

12,000 

11,800 

12,400 

12,600

12, 700 

13,400 

11,900 

10,600 

9,580

315,350

Suspended sedin-ent

Mean 

concentration 

(ppm)

2,590 

2,290 

2,900 

5,490 

6.700

4,240 

3,720 

6,270 

8,000 

7,190

5,210 

4,190 

3,510 

6,060 

6,460

4,550 

3,850 

4,490 

5,040 

5,870

5,300 

4,200 

3,900 

3,650 

3,480

3,580 

3,660 

3,010 

2,860 

2,760

Tors 

pe~ 

da;-

44.400 

3P 800 

5', 400 

118,000 

13^,000

8* 100 

7 ' , 800 

151 000 

251,000 

25<,000

151 ooo

lO'.OOO 

8', 100 

161,000 

191,000 

141,000 

122,000 

147,000 

181,000 

217,000 

189,000 

13*5,000 

124,000 

122,000

in, ooo

123,000 

132,000 

S<5,700 

81,800 

11,400

3,920,000

September

1,900 

1,810 

1,820 

1,810 

1,680

1,610 

1,570 

1,520 

1,510 

1,700

1,920 

2,270 

3,860 

4,170 

4,490 

4,360 

4,520 

4,630 

4,410 

4,360

4,140 

4,170 

5,430 5,170- 

4,410

4,140 

3,980 

3,780 

3,680 

4,010

98,830

653 

566 

581 

571 

581

575 

544 

480 

489 

584

752 

1,100 

2,340 

3,080 

6,010

4,370 

2,840 

2,420 

2,800 

2,330

1,630 

1,470 

2,920 

4,220 

8,700

4,140 

2,150 

1,670 

1,410 

1,340

--

s) ...................................................

3,350 

2,770 

2,860 

2,790 

2,640 

2,500 

2,310 

1,970 

1,990 

2,680

3,900 

6,740 

24,400 

34,700 

72,900 

50,300 

34,800 

30, 200 

33,400 

27,400

18,200 

16,500 

42,800 

58,900 

104, 000

46,300 

23,100 

17,000 

14,000 

14, 500

6-X5.900

1,5?9,548 

9, 8'*. 000
YELLOWSTONE RIVER BASIN Continued 

BIGHORN RIVER AT BIGHORN, MONT. Continue

Particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Oct 1 1949

Sept. 21 .................

Time

8:00 a.m. 

9:00 a.m. 

10:40 a.m. 

10:40 a. m. 

2:28 p.m.

2:28 p.m. 

8:00 a. m. 

10:00 a. m. 

2:20 p.m. 

5:00 p.m.

1:04 p.m. 

1:46 p.m. 

12:03 a. m. 

12:03 a.m. 

6:30 p.m.

4:56 p.m. 

4:56 p.m. 

11:43 a.m. 

11:43 a.m. 

12:47 p.m.

8:00 a. m. 

8:30 a.m. 

8:00 a.m. 

8:00 a.m. 

12:30 p.m.

12:30 p. m. 

8:00 a. m. 

12:48 p.m. 

9:00 a. m. 

11:00 a.m.

Discharge 

(secondfeet)

2,420 

3,600 

3,500 

3,500 

3,180

3,180 

5,400 

3,580 

3,610 

3,490

3,250 

3,390 

5,820 

5,820 

7,360

11,200 

11,200 

12,000 

12,000 

7,900

5,760 

5,090 

5,410 

5,700 

4,090

4,090 

3,510 

1,820 

4,610 

4,140

Suspended sedi

Concentration 

of sample 

(ppm)

718 

2,030 

790 

790 

448

448 

1,600 

2,410 

2,200 

1,790

1,410 

1,720 

2,270 

2,270 

8,130

5,070 

5,070 

5,040 

5,040 

2,390

2,200 

5,960 

6,230 

4,510 

2,280

2,280 

4,870 

563 

6,810 

1,640

Concentration 

of suspension 

analyzed 

(ppm)

409 

1,300 

1,270 

937 

737

123 

847 

1,850 

4,810 

1,190

1,710 

3,260 

1,620 

3,460 

5,190

2,730 

2,880 

3,720 

5,140 

3,790

1,210 

2,930 

3,840 

2,870 

2,650

2,930 

3,430 

1,320 

4,840 

4,160

Percent finer 

0.002

14 

31

5

40 

18 

31

3 

25

3 

22 

6 

34 

19

1 

34

0.004

23 

37 

12 

22 

10

42 

44 

27 

32 

44

30 

27 

10 

32 

56

7 

30 

14 

39 

23

46 

57 

61 

58 

5

41 

64 

55 

63 

42

0.008

30 

47 

24 

28 

17

44 

36 

53

37 

38

28 

33 

48 

47

33

56

0.016

34 

52 

34 

34 

25

50 

55 

43 

46 

59

42 

49 

47 

47 

76

38 

41 

56 

57

57 

79 

79 

77 

66

67 

83 

74 

84 

69

0
YELLOWSTONE RIVER BASIN 71

YELLOWSTONE RIVER BASIN Continued 

POPO AGIE RIVER NEAR RIVERTON, WYO.

LOCATION. At downstream side of bridge on Sand Draw road, a quarter of a mile upstream 

from gaging station, which is 1J miles upstream from mouth, and 2 miles southeast of 

Riverton, Fremont County. 

DRAINAGE AREA. 2,010 square miles. 

RECORDS AVAILABLE. Water temperatures: March to September 1949.

Sediment records: March 1949 to September 1950. 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 2,900 ppm Sept. 20; minimum

daily, not determined.

Sediment loads: Maximum daily, 12,500 tons Sept. 20; minimum daily, not determined. 

EXTREMES, March 1949 to September 1950. Sediment concentrations: Maximum daily, 2,900 ppm

Sept. 20, 1950; minimum daily, not determined.

Sediment loads: Maximum daily, 17,000 tons June 14, 1949; minimum daily, not deterir'ned. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in WaterSupply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

2

g

13

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

29 

30 

31 

TotalOctober

Mean

discharge 

(secondfeet)

137 

160 

189 

195 

207 

201 

210 

274 

322 

314

330 

318 

330 

342 

318

310 

306 

318 

377 

386 

372 

359 

372 

372 

372

390 

386 

359 

338 

342 

342

9,548

Suspended sediment

Mean 

concentration 

(ppm)

31

43 

106

92 

50

121 

89

51

--

Tons 

per 

day

e!6 

e48

e90

e65

 ellO 

| e50

1,900

November

Mean 

discharge 

(secondfeet)

338 

330 

322 

318 

310 

306 

306 

303 

306 

300

296 

296 

303 

318 

314

306 

300 

303 

300 

292

275 

268 

278 

289 

286

282 

275 

272 

268 

234

8,894

Suspended sediment

Mean 

concentration 

(ppm)

44

51 

39 

62

54

40 

31

37 

57

54

--

Tuns 

per 

day

e42

' e28 

' e38

1,100

December

Mean 

discharge 

(secondfeet)

225 

231 

247 

169 

180 

225 

210 

247 

204 

205

130 

130 

130 

170 

200

225 

235 

235 

230 

225

225 

225 

225 

225 

225

230 

230 

230 

230 

225 

220

6,543

Suspended sediment

Mean 

concentration 

(ppm)

26

20

42 

43

49 

28

16 

17

Tom 

per 

das

e!3 

e20 

. elP

440

326665 O - 55 - 6
72 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

POPO AGIE RIVER NEAR RIVERTON, WYO. Continued

Suspended sediment, water year October 1949 to September 1950 Continued

Day

1 

2---*---

3---.-.-

4 ......

5 ...

7 . 

------

9_..._-

10 ----- -

11 

12------

13 

14 ......

15 ------

16 ......

17 

18...---

19.-.. _

20 ------

21 ------

99**--- --

23------

24------

25__ _ 

26--- -

27 

90^D---*--

29 ----- -

30 ------

31 ----- -

Total1 ......

2- ---

3-...-.

4 

£_____

6 

7 ......

------ 

g___ __

10 ----- -

11 ......

12 ......

13 ......

14 -... 

15 

16 ------

17 

18------

19 

20 

21 ------

22 ......

23 

24 ----- - 

25 

26 

27 

28 

29 

30 ----- - 

31 ----- -

TotalJanuary

Mean

discharge 

(secondfeet)

190 

165 

150 

140 

140 

150 

150 

155 

160 

160

160 

160 

160 

155 

155

155 

155 

160 

165 

180 

190 

190 

180 

175 

170 

165 

165 

160 

165 

165 

170

5,060

Suspended sediment

Mean 

concentration 

(ppm)

13

29 

43

Tons 

per 

day

e6 

e!5 

e!3

350

April

225 

234 

258 

235 

230

230 

230 

250 

290 

325 

310 

290 

278 

264 

282

318 

342 

372 

395 

377

377 

390 

450 

486 

456 

439 

395 

377 

412 

386

| 9, 903

514

253 

241

358

460 

665 

860 

1,010

1,080 

670 

545 

595 

690 

960 

720 

370 

290 

640

-

e 200 

e200 

e240 

e280 

319

e240 

157 

163

e240

e 260 

255 

e280

e340 

425 

668 

917 

1,030

1,100 

706 

662 

781 

850 

1,160 

768 

377 

323 

667

14, 330

February

Mean

discharge 

(secondfeet)

175 

180 

185 

195 

200 

210 

225 

230 

235 

235

235 

230 

230 

230 

230

225 

225 

225 

225 

225 

225 

225 

225 

230 

255

260 

250 

235

6,255

Suspended sediment

Mean 

concentration 

(ppm)

7

8

13

14 

17

29

--

Tons 

per 

day

e7 

e5

e9 

1 e!8

240

May

377 

354 

350 

372 

359

368 

382 

486 

498 

492 

486 

439 

428 

450 

575

720 

868 

,090 

,170 

,040

,010 

,080 

,300 

,600 

,620 

,470 

,320 

,420 

,650 

,530 

,890

27, 194

760 

560 

340 

560 

440

1,040 

1,550 

1,920 

1,340 

1,300 

820 

490 

280 

255 

510

770 

1,030 

1,490 

1,250 

772

832 

868 

1,150 

1,180 

867 

788 

616 

621 

616 

488 

722

774 

535 

321 

562 

426

1,030 

1,600 

2,520 

1,800 

1,730 

1,080 

581 

324 

310 

792

1,500 

2,410 

4,390 

3,950 

2,170

2,270 

2,530 

4,040 

5,100 

3,790 

3,130 

2,200 

2,380 

2,740 

2,020 

3,680

62,680

March

Mean

discharge 

(secondfeet)

230 

230 

240 

260 

260 

250 

245 

225 

210 

200

195 

190 

195 

205 

220

235 

255 

275 

264 

261

247 

234 

231 

225 

234

240 

234 

240 

225 

216 

219

7,190

S ispended sediment

Mean 

concentration 

(ppm)

40 

68

67

76 

108

140 

152

122

467 

302 

316

--

Tons 

per 

day

 e24

. e38

48 

74

[ elOO

[ e75

e!40 

e240 

303 

183 

184 

e200

2,500

June

2,170 

2,420 

2,750 

2,470 

2,410

2,650 

3,210 

3,360 

2,710 

2,320 

2,150 

2,400 

2,950 

3,650 

3,750

3,950 

4,180 

4,250 

4.090 

4,090 

4,090 

4,250 

4,530 

4,590 

4,400 

4,030 

3,020 

2,890 

2,860 

2,990

99, 580

812 

983 

1,350 

1,380 

853

700 

799 

562 

460 

413 

424 

498 

503 

470 

494

488 

483 

483 

409 

392

392 

348 

355 

370 

277 

261 

335 

268 

254 

246

4,760 

6,420 

10,000 

9,200 

5,550

5,010 

6,920 

5,100 

3^370 

2,590 

2,460 

3,230 

4,010 

4,630 

5,000

5,200 

5,450 

5,540 

4,520 

4,330

4,330 

3,990 

4,340 

4,590 

3,290 

2,840 

2,730 

2,090 

1,960 

1,990

135,400

e Estimated.
YELLOWSTONE RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

POPO AGIE RIVER NEAR RIVERTON, WYO. Continued

Suspended sediment, water year October 1949 to September 1950--Continued

73

Day

O

22

94

25

9ft

31 

TotalJuly

Mean

charge 

(secondfeet)

3,320 

3,460 

3,750 

3,840 

3,650

3,380 

3,100 

2,750 

2,530 

2,530

2,560 

2,580 

2,240 

1,880 

1,650

1,600 

1,340 

1,210 

1,090 

1,060

1,030 

1,000 

1,050 

1,060 

1,030

1,000 

994 

994 

994 

1,150 

1,060

60, 882

Suspended sediment

Mean 

concentration 

(ppm)

266 

218 

351 

305 

211

243 

202 

190 

203 

203 

200 

171 

142 

172 

150

128 

133 

104 

98 

97 

78 

72 

88 

311 

135

74 

74 

83 

98 

76 

50

--

Tons 

per 

day

2,400 

2,040 

3,550 

3,160 

2,080

2,220 

1,690 

1,410 

1,390 

1,390

1,380 

1,190 

859 

873 

668

553 

481 

340 

288 

278

217 

194 

249 

890 

375

200 

199 

223 

263 

236 

143

31,430

August

Mean

charge 

(secondfeet)

885 

736 

638 

589 

549

516 

492 

417 

382 

334 

318 

303 

314 

338 

338 

322 

310 

303 

286 

286

300 

296 

275 

272 

264

264 

289 

292 

303 

300 

289

11,800

Suspended sediment

Mean 

concentration 

(ppm)

35 

37 

33 

29 

16

15 

15 

20 

14 

11

12 

8 

15 

18 

16 

13 

15 

16 

19 

20

24 

24 

38 

31 

13

17 

21 

24 

27 

31 

50

--

Tons 

per 

day

84 

74 

57 

46 

24

21 

20 

23 

14 

10

10 

7 

13 

16 

15

11 

13 

13

15 

15

19 

19 

28 

23 

9

12 

16 

19 

22 

25 

39

732

September

Mean

charge 

(secondfeet)

278 

275 

258 

250 

247

237 

219 

207 

265 

522

617 

631 

568 

536 

556 

582 

568 

536 

504 

1,210

1,470 

860 

736 

690 

638

610 

589 

582 

603 

638

16,482

Suspended sedin ent

Mean 

concentration 

(ppm)

41 

26 

17 

22 

18

19 

22 

19

270 

256 

193 

96 

65

62 

49 

42 

28

2,900

2,030 

840 

390 

230 

140

80 

40 

70 

500 

140

Tons 

per 

dar

31

n

121' 

12

12 

13 

11 

e30f) 

e900

450 

431' 

28' 

13f> 

9P 

9" 

7F 6" 

3? 

sl2,50 1 

5 8, 520 

1,950 

775 

428 

241

132

64 

110 

814 

241

28,780

Total discharge for year(second-foot days) .................................................. 269,331

Total load for year (tons) .................................................................. 279,900

e Estimated.

s Computed bv subdividing day.
YELLOWSTONE RIVER BASIN Continued 

POPO AGIE RIVER NEAR RIVERTON, WYO. Continu

Particle-size analyses of suspended sediment, April to Septemb

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Apr. 27 ................

Sept. 20 ...............

Sept. 22 ...............

Time

6:40 p. m. 

6:30 p. m. 

11:50 a.m. 

6:30 p. m. 

3:30 p.m.

Discharge 

(secondfeet)

364 

382 

1,110 

2,000 

808

Suspended sedim

Concentration 

of sample 

(ppm)

698 

608 

842 

5,640 

767

Concentration 

of suspension 

analyzed 

(ppm)

. 440 

392 

1,290 

3,650 

1,680

Percent finer t

0.002 0.004

59 

63 

36 

56 

80

0.008

86

0.016

75 

70 

49 

76 

93

0.0
YELLOWSTONE RIVER BASIN 75

YELLOWSTONE RIVER BASIN Continued 

MUSKRAT CREEK NEAR SHOSHONI, WYO.

LOCATION. At gaging station, 1J miles upstream from mouth, and 7 miles southwest of

Shoshoni, Fremont County.

RECORDS AVAILABLE. Sediment records: June to September 1950. 

EXTREMES, June to September 1950. Sediment concentrations: Maximum observed, 92,400 ppm

Sept. 20; minimum daily, no flow on many days.

Sediment loads: Maximum daily, 34,700 tons Sept. 20; minimum daily, 0 tons on many days. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in

Water-Supply Paper 1176.

Monthly and annual summary ot water and suspended-sediment discharge, June to September 1950

Month

March...............

May .................

June 19-30...........

July .................

September ...........

Period, June 19 to 

Sept. 30, 1950 .....

Discharge 

(secondfoot-days)

0.1 

69 

0 

384.4

Runoff 

(acre -feet)

0.2 

137 

0 

762

899

Suspended sediment

Load 

(tons)

(t) 

e7,400 

0 

a 70, 400

77, 800

Daily load (tons)

Mean

239 

0 

2,350

748

Maximum

(t)

0 

34, 700

34, 700

Minimum

0 

0 

0 

0

0

Concentration (ppm)

Weighted 

mean

630 

38, 300

65, 400

Maximum 

daily

92,400

92, 400

e Estimated.

t Sediment discharge less than 1 ton.

a Partly estimated.
YELLOWSTONE RIVER BASIN Continued 

MUSKRAT CREEK NEAR SHOSHONI, WYO. Continu

Particle-size analyses of suspended sediment, Septembe

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanical

Date of collection

Sept. 20. ................

Time

1:55 p.m. 

10:45 a. m.

Discharge 

(secondfeet)

0.5 

240

Suspended zed

Concentration 

of sample 

(ppm)

28, 200 

60, 400

Concentration 

of suspension 

analyzed 

(ppm)

9,100 

5,740

Percent fine

0.002 0.004

96 

55

0.008 0.016

99 

78
YELLOWSTONE RIVER BASIN Continued 

FIVEMILE CREEK ABOVE WYOMING CANAL NEAR PAVILLION

LOCATION. At gaging station, 1,000 feet upstream from Wyoming Canal Siphon, and 4 miles north of Pa

at site 100 feet downstream from Wyoming Canal Siphon. 

RECORDS AVAILABLE. Sediment records: October 1949 to September 1950. 

EXTREMES, 1949-50.--Sediment concentrations: Maximum daily, 77,400 ppm Sept. 20; maximum observed, 

Sediment loads: Maximum daily, 123,000 tons Sept. 20; minimum daily, 0 tons on many days.

REMARKS. Daily samples for chemical analysis composited by discharge. Records of specific conducta

Lincoln, Nebr. Records of discharge for water year October 1949 to September 1950 given in Water

Chemical analyses, in parts per million, September 1949 to Septem

Date of collection

Feb. 20, 1950 .....

Mean 

discharge 

(secondfeet)

1.5 

5 

a 135 

57 

1.3

Temperature 

CF)

PH

7.8 

7.6 

7.1 

7.6 

7.5

Specific 

conductance 

(micromhos at 

25' C)

4,670 

4,040 

2,370 

3,340 

4,900

Silica 

(SiO,)

14 

22 

17

Iron 

(Fe)

0.02 

.02 

.04

Calcium 

(Ca)

497 

426 

310

Magnesium 

(Mg)

145 

185 

62

Sodium 

(Na)

Potassium 

(K)

627 

430 

266 

308 

600

Bicarbonate 

(HCO,)

166 

200 

208 

206 

198

Sulfate 

(SOJ

2,850 

2,400 

1,350 

1,890 

2,880

Chloride 

(Cl)

a Instantaneous discharge.
78 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN -Continued

FIVEMILE CREEK ABOVE WYOMING CANAL NEAR PAVILLION, WYO. Continued 

Suspended sediment, water year October 1949 to September 1950

Day

o

3

g

1 9

 JO

Ifl

99

9«

oe

Total2

4

12

i n

in

22 

23 

24 

25 

26 

27 

28 

29 ------ 

30 ------ 

31 

TotalOctober

Mean

charge 

(secondfeet)

0 

0 

0 

.1 

.1

.1 

.9 

3.5 

5.4 

3.6

1.1 

.7 

.5 

3.0 

1.5

.9 

1.3 

2.3 

3.2 

3.4

3.8 

3.7 

4.2 

2.5 

2 8 

2.8 

2.1 

2.1 

1.7 

1.7 

1.5

60.5

Suspended sediment

Mean 

concentration 

(ppm)

20 

23

17

4,600 

2,000

3,700

3,300 

6,800

9,360

11, 300 

6,700

5,000

Tons 

per 

day

0 

0 

0 

(t) 

(t)

(t) 

e3 

e!40 

elSO 

45

e8 

4 

e3 

e70 

15

e4 

12 

e55 

59 

e85

s 105 

e!40 

e!40 

76 

e65 

51

e26

1,400

January

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

.5

1.0 

1.2 

1.3 

.5 

.1 

0 

.2 

0 

0 

0 

0

4.8

1,420

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0

e3

(t) 

0 

(t) 

0 

0 

0 

0

15

November

Mean

charge 

( second -

feet)

1.5 

1.5 

1.3 

1.1 

.9

.9 .7' 

.7 

.9 

1.1

1.3 

l.E 

1.5 

1.7 

1.5

.7 

.5 

1.1 

.2 

0

.6 

1.6 

1.1 

.9 

.9 

.7 

.9 

.8 

.5 

.2

28.8

Suspended sediment

Mean 

concentration 

(ppm)

5,800

2,800 

4,000

5,200 

600

2,060

3,800

2,700 , 

300

Tuns 

per 

day

e20

e7

e!7

1 

(t) 

el 

(t) 

0

s6 

e26 

e!6

i 1 " ;

e2

(t)

310

February

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

.5 

.5 

.5 

5 

5 

5 

5

5 

5 

5 

5 

5 

5 

5 

2

58.5

6,400

9,000 

6,000

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0

(t) (t) (t)

1 e85

ellO

122 

32

1,200

December

Mean

charge 

(secondfeet)

0.1 

.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 

0 

0 

0 

0

0.3

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

(t) 

(t) 

(t) 

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

(t) ^

March

1 

1 

1 

1

1 

1 

1 

1 

1 

.5

.5 

.5 

.5 

.5 

.5 

.5 

1 

1 

1 

1

1 

1 

1 

1 

1 

1 

1 

1 

2.0 

4.0 

3.4

33.9

3,200 

2,200 

4,600

1,300 

300 

1,500 

4,000

500 

6,200 

7,700 

800

2,600 

4,800

3,700 

3,400

6,300 

6,500

9 

6 

12 

ell 

elO 

4 

(t) 

4 

11 

e5

e3 

e2 

1 

8 

10 

1

e5

7 

13 

e!2 

ell 

10 

9 

e32 

s80 

60

360

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.
YELLOWSTONE RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

FIVEMILE CREEK ABOVE WYOMING CANAL NEAR PAVILLION, WYO. Continued 

Suspended sediment, water year October 1949 to September 1950--Continued

Day

2

8 ......

1 3

18 

19

22 

oo

4R

OQ

31 

Total14

1 Q

rtO

25 

26 

27 

28 

29 

30 

31 ......

Total

April ~~]

Mean

charge 

(secondfeet)

3.8 

2.5 

1.1 

.4 

.5

.8 

.9 

.7 

2.1 

1.0

.8 

.8 

.7 

.8 

.9

1.0 

.8 

.7 

1.0 

.5

.3 

.4 

.1 

.3 

.2

.9 

1.6 

5.3 

5.0 

5.5

41.4

Suspended sediment

Mean 

concentration 

(ppm)

1,700 

3,700

1,700 

4,000

2,600 

2,700

4,100 

4,800

16, 100

10, 200

3,520 

3,550

Tons 

per 

day

e65 

e20 

5 

4 

e6

4 

10 

e9 

e32

7

6 

e8 

8 

10 

e24

e26

8 

elO 

el 

3 

2 

e9 

e50 

e400 

e300 

e340

1,500

July

0 

0 

3 

6 

9 

.5 

.3 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

1 

2 

3 

96

27 

2.9 

1.2 

.8 

.6 

0

153.3

10; 700

17,600

8,200 

3,000

5,000 

46, 300

34, 300 

8,000 

333

0 

0 

e46 

173 

428 

11 

2 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

e5 

e!6 

41 

s 24, 600 

s 3, 260 

63 

1 

el 

(t) 

0

28, 650

Total discharge for year (second -foot-da; 

Total load for year (tons) ..............

May

Mean

charge 

(second - 

feet)

4.7 

4.7 

6.4 

6.5 

4.4

2.5 

6.4 

7.5 

5.0 

3.5

2.3 

1.5 

1.3 

1.3 

.5

.4 

.2 

0 

0 

0

0 

0 

0 

0 

.8

.6 

.1 

.2

.7 

.6 

.5

62.6

Suspended sediment

Mean 

concentration 

(ppm)

15,200

12,800 

14,000 

11,200 

8,000 

7,000

3,100 

2,000

6,700 

5,700

3,800

Tons 

per 

day

e240 

e200 

263 

e260 

e!70

e60 

e240 

e300 

173 

132 

70 

32 

25 

e22 

e6

3 

1 

0 

0 

0 

0 

0 

0 

0 

14 

9 

(t) 

e2 

7 

e6 

e4

2,200

August

0 

0 

0 

0 

0

0 

.1 

.1 

.1 

.1

.1 

.1 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

.2 

.7 

0 

0

1.5

34 

28

0 

0 

0 

0 

0 

0

(t)

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

(t) (t)

0 

0

1

June

Mean

charge 

(second - 

feet)

1 

1.6 

1.1 

.3 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

16 

50 

10 

2 

1 

.5 

0 

0 

0 

0 

0 

0 

0

83.5

Suspended sedin ent

Mean 

concentration 

(ppm)

200 

950

7,680 

3,530 

400

350

Tors 

per 

day

(t) 

4 

2 

(t) 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

' e460 

si, 600 

s!32 

2 

el 

(t) 

0 

0

0 

0 

0 

0 

0

2,200

September

0 

0 

0 

0 

0

0 

0 

0 

0 

4.2

4.4 

1.5 

.7 

1.3 

12 

4.2 

3 

2 

2.5 

273 

5 

1 

1 

2 

2 

1 

0 

0 

3.5 

4.0

328.3

5,220

4,550 

1,820

8,300

3,400 

2,050 

2,300 

77, 400

10,000 

2,500

950 

700

3,020

0 

0 

0 

0 

0

0 

0 

0 

0 

59

e60 

18 

3 

e5 

269 

e65 

28 

11 

s28 

s 123, 000 

135 

7 

e5 

e6 

5 

2 

0 

0 

29 

50

121 , 800

......................................................... 16' , 600

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.
YELLOWSTONE RIVER BASIN -Continued 

FIVEMILE CREEK ABOVE WYOMING CANAL NEAR PAVILLION, WY

Particle-size analyses of suspended sediment, September 1949 to S

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Mar. 6, 1950 .........

July 25 ..............

Sept. 21 ..............

Time

2:55 p.m. 

11:00 a.m. 

12:10 p.m. 

4:45 p.m. 

1:10 p.m. 

12:30 p.m.

3:00 p.m. 

4:25 p.m. 

12:10 p.m. 

2:55 p.m. 

5:00 p.m.

10:30 a.m. 

8:10 p.m. 

12:20 p.m. 

10:20 a.m.

Discharge 

(secondfeet)

2 3 

el 

e.5 

el 

.8 

1.4

1.7 

6.5 

1.2 

1.5 

135

e7 

240 

280 

5.5

Suspended sedim

Concentration 

of sample 

(ppm)

8,470 

1,580 

7,700 

7,980 

3,940 

15,800

4,530 

24,800 

6,680 

1,580 

24, 700

26, 800 

110,000 

78,400 

9,820

Concentration 

of suspension 

analyzed 

(ppm)

1,580 

980 

3,090 

3,370 

2,370 

3,080

2,650 

7,070 

3,310 

741 

14,400

10, 700 

4,840 

16, 100 

3,810

Percent finer 

0.002

61 

34

74 

21

0.004

82 

47 

13 

40 

72 

80

72 

48 

68 

81 

35

67 

34 

30 

72

0.008

94 

57

92

38 

84

0.016

94 

62 

23 

62 

83 

98

85 

67 

82 

85 

61

90 

53 

47 

90

0.0
YELLOWSTONE RIVER BASIN Continued 

FIVEMILE CREEK NEAR RIVERTON, WYO.

LOCATION. At gaging station, 3 miles downstream from Ocean Drain, 12i miles north of Riverton, Frem

RECORDS AVAILABLE. Sediment records: October 1949 to September 1950.

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 89,500 ppm Sept. 20; maximum observed, 

Sediment loads: Maximum daily, 199,000 tons Sept. 20; minimum daily, 3 tons Jan. 5, 16. 17.

REMARKS. Daily samples for chemical analysis composited by discharge. Records of specific conduct

office at Lincoln, Nebr. Records of discharge for water year October 1949 to September 1950 giv

Chemical analyses, in parts per million, September 1950

Date of collection

Sept. 18-24, 1950 .. 

Sept. 25-29 ........

Discharge 

(secondfeet)

146 

46.2

Temperature

(°F)

PH

7.6 

7.6

Specific 

conductance 

(micromhos at 

25° C)

3,290 

3,180

Silica 

(Si02)

Iron 

(Fe>

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

346 

484

Potassium 

(K)

Bicarbonate 

(HCO,)

277 

172

Sulfate 

(SO,)

1,720 

1,480

Chloride 

(Cl)

3

6
82 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

FIVEMILE CREEK NEAR RIVERTON, WYO.--Continued

Suspended sediment, water year October 1949 to September 1950

Day

2

12

1 Q

90

9fl

29

31 

Totalg

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

charge 

(secondfeet)

76 

39 

39 

39 

32

35 

33 

34 

35 

38

37 

35 

28 

29 30"

31 

32 

32 

41 

43

46 

44 

49 

51 

35

37 

39 

42 

41 

45 

44

1,211

Suspended sediment

Mean 

concentration 

(ppm)

3,220 

2,390 

2,330 

2,150 

2,420

2,110 

2,190 

2,340 

2,700

2,040 

1,940

2,330 

2,510

1,970 

2,240 

3,020

4,990 

3,140

3,270 

3,250 

3,010

2,410 

2,750

Tons 

per 

day

661 

252 

245 

226 

209

199 

195 

215 

255 

e280

e220 

193 

147 

e!60 

189

210 

e200 

170 

248 

351

e460 

593 

416 

e420 

309 

325 

317 

e280 

267 

334 

e300

8,850

January

15 

15 

14 

12 

6

7 

7 

7 

7 

7

7 

6 

6 

6 

6

5 

5 

5 

5 

6 

8 

9 

9 

9 

9

9 

8 

8 

8 

8 

8

247

298 

218 

160

230 

285 

275 

305 

255 

222

224 

250

223 

. 250 

280 

325 

290

470 

410

360 

265

ell 

12

8 

5 

e3

4 

5 

5 

6 

5

4 

e4 

4 

4 

e4

3 

3 

4 

4 

5 

e7 

e9 

11 

ell 

10

e9 

8 

e7 

e6 

6 

e6

193

November

Mean

charge 

[second - 

feet)

38 

38 

32 

35 

40

44 

48 

47 

40 

39

29 

28 

27 

26 

25

24 

25 

24 

24 

28

25 

23 

22 

22 

23

23 

27 

24 

24 

24

898

Suspended sediment

Mean 

concentration 

(ppm)

2,310 

2,380 

1,840

2,520

2,650 

2,270 

1,780

1,780 

3,310

2,370

2,290 

1,820

1,260 

2,300

1,440

1,550 

1,490

1,370 

1,350

1,140 

1,120

--

Tuns 

per 

day

237 

244 

159 

e!70 

e220

299 

e340 

336 

245 

187

e!30 

135 

241 

e200 

160

148 

123 

e85 

82 

174

e!40 

89 

e90 

92 

93

85 

98 

e85 

74 

73

4,830

February

8 

8 

8 

8 

9

10 

11 

13 

15 

20 

35 

30 

25 

22 

20

19 

18 

17 

16 

16 

16 

17 

30 

40 

30

25 

22 

20

528

258 

280

258 

360 

235

442 

430 

495

650 

870 

800

3,400

18,800 

17, 200

6 

e6 

6 

e6

66

7 

elO 

13 

e!2 

13

e26 

e30 

30 

e26 

23 

e24 

24 

e22 

e22 

28 

38 

37 

e!40 

367 

e500

e750 

1,120 

928

4,220

December

Mean

charge 

(secondfeet)

24 

24 

25 

28 

27

26 

23 

20 

19 

18

18 

17 

17 

16 

16

15 

15 

15 

15 

14

14 

14 

14 

14 

14

14 

15 

15 

15 

15 

15

551

S ispended sediment

Mean 

concentration 

(ppm)

1,850

2,160 

1,770

917 

170

125

105 

210 

130 

140 

138

179 

180 

190 

170 

180

180

375 

390

1,270 

780 

425 

419 

370 

285

-

Tons 

per

day

120 

6140 

146 

134 

e95

64 

11 

e7 

e7 

6 

5 

10 

6 

6 

6

7 

7 

8 

7 

7

7

69

14 

15 

e!8

48 

32 

17 

17 

15 

12

1,000

March

20 

22 

18 

22 

27

27 

16 

20 

25 

16

15 

15 

16 

16 

17

18 

28 

25 

25 

26 

20 

28 

15 

20 

20

20 

18 

15 

20 

25 

20

635

14.200

n.eoo 

n.ooo

6,400 

11,400 

11,100 

6,150

9,350 

11,400

8,640 

15 700 

15,700

12,500 

8,840 

9,800 

7,800 

7,500 

5,300

7,350 

5,450 

10,400 

9,900 

6,200

-

767 

808 

6600 

6800 

el, 200

1,020 

276 

562 

682 

266

e260 

e300 

404 

449 

e420

420 

1,190 

1,060 

el, 100 

878 

477 

741 

316 

405 

e286

e340 

357 

221 

s671 

668 

335

18, 280

e Estimated.

s Computed by subdividing day.
YELLOWSTONE RIVER BASIN 

YELLOWSTONE RIVER BASIN Continued 

FIVEMILE CREEK NEAR RIVERTON, ¥YO. Continued

83

Suspended sediment, water year October 1949 to September 1950--Continued

Day

2

.- -

13

23

Oft

29

31 

Total3

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

25 

20 

16 

21 

23

34 

34 

35 

60 

35

34 

32 

30 

30 

36

36 

28 

26 

25 

24

26 

26 

24 

33 

35

31 

33 

39 

32 

29

912

Suspended sediment

Mean 

concentration 

(ppm)

6,250 

7,400 

7,200

10,700 

10,000 

9,440

8,100

7,750 

9,250 

7,750 

6,550

5,570 

5,890 

6,240 

6,360 

6,450

6,160 

4,820 

5,480

5,250 

4,950 

8,190 

9,160

July

160 

116 

158 

186 

236

215 

197 

165 

146 

136 

124 

118 

136 

112 

126

134 

112 

126 

131 

126 

141 

150 

150 

156 

464

378 

171 

171 

171 

159 

170

5,241

26,500 

26, 100 

33,700 

36, 100 

36, 400

37,400 

31,000 

33, 900 

33, 100 

31,900 

31,000 

29, 300 

29,800 

30, 800 

30, 000

31,800 

31,700 

32, 300 

37, 100 

32,400 

30, 000

36,000

51,600 

47,000 

41,200 

43,500 

40, 800

Tons 

per 

day

' e360 

e300 

270 

420 

447 

982 

918 

892 

el, 500 

765

711 

799 

628 

531 

e550

e500 

421 

413 

421 

412

453 

e440 

399 

429 

518

439 

441 

862 

791 

e500

17,510

11,400 

8,170 

14,400 

18,800 

24,100

22,500 

16, 500 

15,100 

13,000 

11,700 

10,400 

9,330 

10, 900 

9,310 

10,200

11,500 

9,590 

11,000 

13,600 

11,000

11,400 

e 13, 000 

e 14, 000 

15,700 

e 120, 000 

e 90, 000 

24,700 

22, 500 

19,700 

19,400 

19,400

632,300

May

Mean

charge 

(secondfeet)

26 

31 

45 

40 

40

30 

42 

51 

60 

45

41 

45 

45 

43 

47

47 

47 

69 

61 

60

47 

39 

40 

41 

42 

41 

38 

57 

89 

55 

49

1,453

Suspended sediment

Mean 

concentration 

(ppm)

5,420 

5,820

8,600

9,700 

12,200 

23,900

17,800

13,600 

11,200 

11,200 

12,200 

13,400

13, 100 

13,600 

11,700 

12,500

10,700 

8,400 

5,600 

11,400 

13,800 

10,400 

9,100 

28,000 

40, 000 

32,700 

30,600

Tons 

per 

day

380 

487 

e850 

929 

el, 000 

786 

1,380 

3,290 

e3,700 

2,160

1,510 

1,360 

1,360 

1,420 

1,700

1,660 

1,730 

2,180 

2,060 

el, 600

1,360 

885 

605 

1,260 

1,560

1,150 

934 

4,310 

9,970 

4,860 

4,050

62,490

August

178 

171 

180 

173 

183

183 

178 

182 

175 

176

180 

170 

180 

183 

182

180 

171 

178 

185 

176 

182 

173 

170 

160 

144

159 

143 

152 

147 

130 

154

5,278

36, 800 

35,900 

39,000 

36,200 

36, 100

38, 600 

42, 500 

39,200 

37,000 

32, 900

34,400 

36,000 

40,000 

40,000 

40,500 

37,700 

37,100 

36,800 

34, 800 

35,000

34, 300 

31,300 

31,000 

27,000 

29, 300

29, 100 

25, 100 

28, 600 

36, 200 

28,700 

29,100

-

18,300 

17,200 

19,700 

17,500 

18, 500

19,800 

21,200 

20,000 

18,100 

15,600 

16,700 

17,100 

20, 200 

20, 500 

20, 600 

19,000 

17,800 

18, 300 

17,400 

16,600

16,900 

14,600 

14, 200 

11,700 

11,400

12,500 

9,690 

11,700 

14,900 

10, 100 

12,100

509, 900

June

Mean

charge 

(second - 

feet)

47 

49 

58 

61 

62

86 

82 

121 

92 

97

150 

106 

89 

109 

137

131 

137 

260 

271 

209

134 

128 

134 

141 

121

137 

121 

112 

141 

136

3,659

Suspended sediment

Mean 

concentration 

(ppm)

30, 500 

21,000 

22, 200 

24, 600 

26, 000

37, 500 

37,500 

36,000 

34, 500 

34, 200

32,700 

29, 000 

27,400 

36, 600 

50, 000

35,800 

31,200

86, 500 

65, 800

45,000 

43,100 

40,000 

39, 800 

36, 300

35, 600 

30, 000 

31,000 

33, 200 

30, 500

Ton.! 

per 

day

3,870 

2,780 

3,480 

4,050 

4,350

9,030 

8,610 

12,200 

8,570 

8,960

13, 200 

8,300 

6,580 

11,200 

19,200

13, 100 

11,500 

e70,000 

s 94, 300 

s47, 100

16, 900 

15,400 

15,000 

15,700 

12, 300

13,700 

9,800 

9,370 

12, 600 

11,200

492,400

September

149 

140 

155 

163 

152

152 

151 

135 

155 

155

167 

178 

155 

135 

106

101 

92 

86 

77 

497

142 

94 

81 

45 

43

48 

47 

45 

48 

50

3,744

28,800 

28,700 

31,000 

31,700 

30,000

32, 900 

35,400 

30,600 

28,400

31,000 

33, 300 

32, 100 

28,000 

28, 100

26, 400 

23,700 

21,000 

18,100 

89, 500

43, 300 

32,000 

29,900 

11,100 

12,000

15,800 

15,000 

14,400 

16,900 

19,100

-

11,600 

10, 800 

13,000 

14, 000 

12,300

13,500 

15,000 

11,200 

11,900 

el 2, 000

14,000 

16,000 

13,400 

10, 200 

8,040

7,200 

5,890 

4,880 

3,760 

s m, 000

17,200 

8,120 

6, 540 

1,350 

1,390

2,050 

1,900 

1,750 

2,190 

2,580

452,700

Total discharge for year (second-foot days). 

Total load for year (tons) .................

24,357

2,215,000

e Estimated.

s Computed by subdividing day.
YELLOWSTONE RIVER BASIN Continued 

FIVEMILE CREEK NEAR RIVERTON, WYO. Continu

Particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Oct. 1, 1949............

Oct. 8 .................

Oct. 26 ................

Nov. 30 ................

Mar. 29 ................

Apr. 23 ................

May 7 ..................

May 8 ..................

May 21 .................

May 28 .................

May 29 .................

June 2 .................

June 14 ................

June 22 ................

July 1 .................

July 8 .................

July 19 ................

July 21 ................

July 25 ................

July 25 ................

a Mean daily discharge

Time

6:05 p. m. 

10:30 a.m. 

10:45 a. m. 

4:05 p.m.

3:15 p. m. 

12:00 m. 

10:50 a. m. 

3:25 p.m. 

2:00 p. m.

2:35 p. m. 

2:35 p.m. 

5:45 p.m. 

4:45 p.m. 

5:10 p. m.

11:35 a.m. 

1:30 p. m. 

3:40 p. m. 

11:35 a.-m. 

4:20 p. m.

 8:00 p. m. 

10:50 a.m. 

1:45 p. m. 

9:50 a.m. 

1:40 p. m.

8:40 a. m. 

4:55 p. m. 

1:00 p. m. 

1:00 p.m. 

5:00 p. m.

Discharge 

(secondfeet)

76 

34 

37 

23

a22 

27 

18 

27 

35

24 

24 

42 

51 

45

60 

89 

50 

100 

97

640 

132 

137 

160 

165

134 

134 

211 

211 

530

Suspended sedi

Concentration 

of sample 

(ppm)

3,810 

2,370 

3,290 

1,300

23,600 

14, 200 

7,260 

17, 900 

8,040

6,190 

6,190 

12,100 

26, 100 

11,000

28, 200 

39, 000 

18,800 

30, 300 

40, 100

132,000 

41,400 

32,200 

26, 200 

37,200

34,000 

34, 300 

53,500 

53, 500 

87,400

Concentration 

of suspension 

analyzed 

(ppm)

1,580 

1,240 

1,600 

706

1,880 

8,230 

2,340 

6,950 

5,330

3,650 

5,260 

10, 500 

4,470 

6,140

4,100 

14,900 

5,120 

6,870 

6,160

8,550 

4,510 

4,820 

5,570 

8,540

3,830 

9,140 

7,740 

3,980 

5,800

Percent finer 

0.002

3 

6

22

29

0.004

19 

6 

9 

20

27 

35 

22 

18 

36

2 

30 

33 

45 

32

40 

32 

29 

29 

35

27 

32 

33 

29 

21

30 

33 

1 

33 

26

0.008

29 

8 

12 

27

36

8 

36

5 

41

0.016

40 

12 

16 

32

48 

57 

34 

28 

51

40 

42 

57 

60 

46

58 

52 

44 

46 

54

43 

49 

50 

42 

40

44 

51 

47 

52 

39

0
July 25 .................

July 27 .................

Aug. 9 .................

Aug. 10 ................

Aug. 10 ................

Aug. 11 ................

Aug. 23 ................

Aug. 29 ................

Sept. 27 ................

Sept. 29 ................

7:45 p. m.

11:55 a.m.

11:05 a.m.

11:05 a.m.

9:10 a.m.

9:20 a.m.

11:00 a.m.

11:00 a.m.

718

165

185

182

182

180

180

193

193

187

195

178

178

183

163

163

165

401

916

52

51

51

70, 900

45, 000

38, 500

39,400

39,400

36,700

36,700

35, 500

35, 500

42,200

41,400

38,800

38, 800

35, 600

34,800

34, 800

57,700

67, 100

239,000

15, 100

19, 800

19,800

-v 5,750

6,730

5,480

25, 500

2,630

25, 300

6,020

24, 100

5,010

5,280

5,620

9,340

5,150

4,620

22, 300

2,440

7,760

5,010

3,160

3,670

8,860

3,960

____

23

22

231

25_

20__1

17

30

30

32

29

30

30

30

283

30

30

26

36

40

22

261

21

_

..

._1

371

401

363

36_1

32

__

_.

_.3

27

45

45

46

44

43

43

47

42

44

46

40

41

43

42

36

39

54

64

33

40

30

32
YELLOWSTONE RIVER BASIN Continued 

FIVEMILE CREEK NEAR SHOSHONI, WYO.

LOCATION. At gaging station, 2J miles upstream from mouth and 5 miles west of Shoshoni, Fremont Co

RECORDS AVAILABLE. Chemical analyses:. September 1949 to September 1950.

Water temperatures: December 1948 to September 1950.

Sediment records: August 1948 to September 1950. 

EXTREMES, 1949-50. Dissolved solids: Maximum, 3,500 ppm Dec. 12-31; minimum, 1,140 ppm July 1-24.

Hardness: Maximum, 1,030 ppm Sept. 15-24; minimum, 431 ppm July 1-24.

Specific conductance: Maximum daily, 4,650 micromhos Jan. 25; minimum daily, 1,420 micromhos July 

Water temperatures: Maximum, 78°F July 8; minimum, freezing point on many days during November t

Sediment concentrations: Maximum daily, 83,400 ppm July 26; minimum daily, 218 ppm Jan. 6.

Sediment loads: Maximum daily, 182,000 tons Sept. 20; minimum daily, 12 tons Jan. 5. 

EXTREMES, 1948-50. Dissolved solids (September 1949 to September 1950): Maximum, 3,500 ppm Dec. 1

Hardness (September 1949 to September 1950): Maximum, 1,030 ppm Sept. 15-24, 1950; minimum, 431 

Specific conductance (September 1949 to September 1950): Maximum, 4,650 micromhos Jan. 25, 1950; 

Water temperatures: Maximum, 84"F June 10, 1949; minimum, freezing point on many days during win

Sediment concentrations: Maximum daily, 136,000 ppm June 12, 1949; minimum daily, 140 ppm Dec. 2

Sediment loads: Maximum daily, 350,000 tons (estimated) Sept. 19, 1948; minimum daily, 8 tons Dec

REMARKS. Daily samples for chemical analysis composited by discharge. Records of specific conduct

Lincoln, Nebr. Records of discharge for water year October 1949 to September 1950 given in Water

Chemical analyses, in parts per million, water year Octoaer lsJ4S to Septem

Date of collection

Oct. 1-31, 1949.....

Jan. 1-31, 1950 ....

Mean 

discharge 

(secondfeet)

64 

49 

36 

26

19 

34 

40 

45

51 

116 

136 

253

Temperature 

(°F)

PH

7.7

7.7

7.6 

7.9

7.7 

7.7 

7.6 

7.6

Specific 

conductance 

(micromhos at 

25° C)

3,360

4,060

3,600 

3,740

3,700

M?n

1,970 

1,620

Silica 

(SiO.)

15

19

13 

11

33 

IS 

18 

19

Iron 

(Fe)

0.01

.01

.01 

.01

.10 

."4 

.04 

.04

Calcium 

(Ca)

210

282

255 

236

234

188 

150 

150

Magne-

(Mg)

54

70

62 

61

60 

3? 

29 

22

Sodium 

(Na)

568

693

598 

667

642 

 39? 

269 

196

Potassium 

(K)

4.7

5.0

5.8 

5.2

6.4 

b.8 

4.4 

4.3

Bicarbonate 

(HCO3 )

240

310

240 

218

238 

31? 

203 

192

Sulfate 

(304)

1,670

2,050

1,870 

1,850

1,830 

1,160 

820 

675

Chloride 

<C1)

7

9

8

9

8

5

3

2
July 27-Aug. 25 ..... 

Aug. 26-Sept. 14 .... 

Sept. 15-24 .........

Sept. 25-30 .........

Weighted average. . .

298

295 

234

80

121

7.6

7.6

7.7 

7.7

7.8-

1,690 

1,880 

3,000

3,360

2,190

17 

17

13

.04 

.04 

.04

.04-

142

151 

152

237

179

22 

25

55

48

32

212 

247

536

309

4.1

4.1 

4.3 

6.2

5.1

4.6

172

168 

176 

195

225

191

650

920

725 

815 

1,530

1,610

1,000

2

3

4

6

4

a. Includes estimated values for missing data.
88 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

FIVEMILE CREEK NEAR SHOSHONI, WYO. Continued

Temperature (*F) of water, water year October 1949 to September 1950 

/Once-daily temperature measurement between 8 a. m. and 12 mj

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

Average

Oct.

60

64

65

58

57

45

43

38

46

40

42

42

45

38

45

58

39

40

34

35

36

35

46

49

50

44

40

41

45

50

33

45

Nov.

46

38

38

50

51

33

40

35

40

38

46

47

35

35

34

32

38

47

43

32

36

35

37

35

..

49

38

33

32

39

Dec.

32

34

34

32

32

32

32

33

32

32

32

32

32

32

32

32

32

32

32

32

34

33

33

33

34

35

33

Jan.

_.

32

36

32

32

32

33

32

32

37

_

36

._

34

34

32

32

_

32

-_

31

32

33

-

Feb.

33

32

32

35

"

34

33

33

35

33

32

32

32

34

34

32

33

33

--

-

Mar.

_.

33

33

--

33

33

32

32

32

_

33

33

32

33

33

33

40

 "

_.

32

33

36

_.

32

33

43

Apr.

..

50

36

54

..

47

43

53

45

65

55

58

-

69

36

54

53

46

_

66

--

May

_.

48

--

38

_

68

59

__

64

64

50

_

67

46

49

_

58

58

55

59

58

-

June

51

52

75

62

67

51

52

54

68

_

67

65

65

71

67

70

67

65

75

66

64

58

68

68

65

68

68

64

July

70

73

61

60

67

69

78

68

74

70

58

57

66

59

68

62

75

59

63

68

73

77

71

67

64

74

63

e?

Aug.

66

60

65

67

63

_.

52

64

62

62

67

--

61

68

65

62

67

61

58

68

63

63

65

65

63

62

60

62

62

59

61

63

Sept.

60

66

62

63

62

65

63

63

53

57

64

52

48

47

55

54

56

55

54

65

52

57

53

51

47

44

46

56
YELLOWSTONE RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

FIVEMILE CREEK NEAR SHOSHONI, WYO. Continued

Suspended sediment, water year October 1949 to September 1950

89

Day

19

1 ft

99

94

94

27

no

31 

Total -

g

15 

17 

|g

19

20

22 

23 

24 

25 ----- 

26 

27 

28 

29 

30 ------ 

31 

Total

October

Mean

charge 

(secondfeet)

139 

80 

72 

74 

72

66 

68 

70 

69 

78

62

58 

56 

57 

57

58 

58 

55 

54 

57

56 

58 

58 

60 

62

57 

57 

57 

57 

58 

57

1,997

20 

19 

20 

17 

20

22 

21 

22 

22 

20

20 

20 

20 

20 

17 

17 

16 

18 

16 

16

20 

20 

20 

20 

17

16 

17 

17 

15 

15 

14

574

Suspended sediment

Mean 

concentration 

(ppm)

10, 900 

8,100 

7,600 

7,200 

7,500

6,600 

6,950 

9,900 

8,150 

9,500

8,100 

7,600 

6,500 

6,650 

6,200

6,100 

6,600 

6,200 

9,590 

15,800

13, 700 

14,400 

15,200 

11,900 

13,900

7,800 

7,900 

6,500 

6,450 

7,300 

6,200

Tons 

per 

day

4,090 

1,750 

1,480 

1,440 

1,460

1,180 

1,280 

1,870 

1,520 

2,000

1,360 

1,190 

983 

1,020 

954

955 

1,030 

921 

1,400 

2,430

2,070 

2,260 

2,380 

1,930 

2,330

1,200 

1,220 

1,000 

993 

1,140 

954

47,790

January

512 

320 

352 

224

218 

367 

504 

518 

466 

768 

757 

736 

701 

596 

400 

461 

546 

516 

646

984 

957 

626 

1,150 

773

564 

774 

678 

910 

810 

690

e30 

26 

17 

16 

12

13 

21 

30 

31 

25 

41 

41 

40 

38 

27

18 

20 

27 

22 

28

53 

52 

34 

62 

35

24 

36 

31 

37 

33 

26

946

November

Mean

charge 

(secondfeet)

58 

57 

58 

57 

55 

56 

56 

57 

57 

56

53 

47 

45 

44 

44

42 

42

44 

48 

48

44 

37 

44 

45 

45

45 

42 

43 

43 

43

1,455

Suspended sediment

Mean 

concentration 

(ppm)

6,200 

6,750 

6,950 

6,300 

5,550

5,900 

5,505 

8,200 

3,950 

6,250

6,050 

5,350 

5,400 

6,450 

5,300

4,750 

4,200 

6,750 

5,300 

6,650

9,250 

7,400 

6,700 

9,100 

7,400

5,550 

5,200 

5,000 

5,400 

6,700

Tons 

per 

day

971 

1,040 

1,090 

970 

824 

892 

764 

1,260 

1,380 

945

866 

679 

656 

766 

630

539 

476 

802 

687 

862

1,100 

739 

796 

1,110 

899

674 

590 

580 

627 

778

24,990

February

14 

14 

15 

16 

17

18 

19 

18 

22 

26

41 

34 

32 

30 

34

34 

34 

32 

32 

36

40 

38 

57 

65 

76 

65 

58 

43

!j60

718 

791 

874 

754 

893

996 

1,130 

922 

853 

1,020

1,440 

1,470 

1,540 

1,470 

1,440

1,550 

1,610 

1,710 

1,910 

2,350

2,640 

3,070 

4,240 

6,150 

7,770

10,500 

9,150 

6,280

-

27 

30 

35 

33 

41

48 

58 

45 

51 

72

159 

135 

133 

119 

132

142 

148 

148 

165 

228

285 

315 

653 

si, 180 

Si, 780

si, 980 

si, 600 

sjOl

10,640

December

Mean

charge 

( second - 

fset)

43 

41 

36 

33 

35

35 

34 

39 

35 

36

27 

20 

18 

16 

25

39 

34 

32 

30 

29

29 

27 

28 

27 

26

23 

24 

26 

23 

23 

22

915

Suspended sediment

Mean 

concentration 

(ppm)

7,550 

6,150 

6,060 

3,980 

5,260

3,830 

4,100 

2,920 

2,550 

3,310

3,890 

1,550 

400 

1,200 

950

1,000 

910 

730 

392 

1,170

847 

437 

371 

701

912 

554 

414 

469 

514 

512

Tons

per 

day

877 

681 

589 

355 

497

362 

376 

307 

241 

322

284 

84 

19 

52 

64

105 

84 

63 

32 

92 

66 

32 

28 

51 

e65

57 

36 

29 

29 

32 

30

5 940

March

37 

40 

52 

69 

58

46 

35 

34 

33 

32

31 

31 

32 

34 

45 

50 

55 

56 

45 

41

39 

38 

36 

38 

41 

36 

34 

34 

34 

33 

34

1,253

7,200 

7,080 

9,000 

14,800 

17, 500 

17,800 

9,800 

9,500 

10,000 

7,100

3,400 

4,600 

6,000 

9,900 

13,600 

15,500 

21,000 

21,000 

15,800 

16,500

12,000 

13, 100 

13,800 

11,700 

13,600

11,300 

11,700 

8,500 

6,800 

11,000 

9,800

--

s876 

s907 

si. 360 

S3 060 

2,740

2,210 

926 

872 

891 

613

285 

385 

518 

909 

1.650

2,000 

3 120 

3 180 

1 920 

1.830

1.260 

1.340 

1.340 

1 200 

1 510

1.100 

1.070 

780 

624 

S/80 

900

42,450

e Estimated.

s Computed by subdividing day.
MISSOURI RIVER BASIN 

YELLOWSTONE RIVER BASIN Continued 

FIVEMILE CREEK NEAR SHOSHONI, WYO. Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

14 ...

22

25

29

31 

Total3 

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 -----

Total

April

Mean

discharge 

(secondfeet)

32 

30 

29 

35 

44

56 

60 

66 

62 

50

48 

51 

51 

46 

45

46 

47 

45 

43 

43

43 

42 

40 

40 

39

37 

38 

48 

48

44

Ij348

Suspended sediment

Mean 

concentration 

(ppm)

9,900 

8,900 

9,500 

11,300 

10, 700

12,000 

15,300 

13,400 

14,500 

12, 900 

12, 000 

12,200 

10, 900 

11,300 

11,000

9,900 

11,600 

10, 100 

10, 900 

10, 000

10, 000

9,800 

8,200 

8,300

8,500 

7,900 

11,000 

14, 100 

9,600

..

Tons 

per 

day

855 

721 

744 

1,070 

1,270

1,810 

2,480 

2,390 

2,430 

1,740

1,560 

1,680 

1,500 

1,400 

1,340

1,230 

1,470 

1,230 

. 1, 270 

1,160

1,160 

e 1, 100 

1,060 

886 

874

849 

811 

1,430 

1,830 

1,140

40 490

July

328 

314 

332 

364 

368

368 

420 

378 

328 

283

238 

211 

229 

238 

252

256 

270 

274 

270 

238 

252 

278 

324 

346 

533

559 

350 

346 

328 

319 

283

9,877

21,500 

27,900 

39,300 

39,000 

42, 200

37, 800 

37, 600 

36, 700 

35,400 

27,900

31,000 

29, 000 

27, 000 

27, 700 

28, 200 

28, 100 

29, 700 

27, 700 

30, 000 

28,500 

27,000

31,200 

53, 600

83, 400 

34, 000 

34,800 

31,700 

32, 400 

38,300

19,000 

23, 700 

36, 500 

39, 700 

43, 500

39, 000 

44, 200 

38, 800 

32, 500 

21,300

19,900 

16, 500 

16, 700 

17,800 

19, 200

19, 400 

21,700 

20, 500 

21,900 

18, 300 

18, 400 

e 22, 000 

e 2 5, 000 

29, 100 

3131,000

3166, 000 

33,300 

33, 700 

28, 100 

28, 900 

30, 300

1,076,000

May

Mean

charge 

'secondfeet)

42 

42

57 

56 

57

92 

159 

151 

92 

98

88 

95 

128 

132 

128

110 

128 

135 

121 

124

124 

114 

92 

135 

167

128 

114 

171 

159 

151 

171

3 561

Suspended sediment

Mean 

concentration 

(ppm)

9,400 

10,000 

11,000 

15,500 

14, 300

13, 800 

16, 400 

22, 300 

18, 200 

13, 200 

11,400 

12, 700 

11,000 

11,000 

12, 700

16, 000 

15,000 

15,300 

13,600 

13, 600

10, 100 

11,800 

9,900 

13,000 

13,000

10, 900 

9,300 

17, 800 

23, 100 

25,500 

22, 000

Tons 

per 

day

1,070 

1,130 

1,690 

2,340 

2,200

3,430 

7,040 

9,090 

4,520 

3,490

2,710 

3,260 

3,800 

3,920 

4,390

4,750 

5,180 

5,580 

4,440 

4,550

3,380 

3,630 

2,460 

4,740 

5,860

3,770 

2,860 

8,220 

9,920 

10, 400 

10, 200

144,000

August

260 

283 

301 

301 

310

296 

324 

292 

301 

314

324 

342 

314 

319 

283

265 

238 

247 

283 

292

314 

288 

260 

252 

242

234 

224 

224 

233 

211 

220

8,581

32,500 

27,500 

31,200 

30, 200 

31, 000

33, 300 

31,200 

34,500 

33, 000 

33, 800 

31,800 

39, 800 

40, 300 

37,200 

37, 900 

35,000 

34, 900 

34, 200 

34, 300 

32, 000

34, 200 

32,500 

30, 800 

28, 700 

26,600 

25,000 

24, 600 

23,800 

32, 200 

26, 000 

23, 300

--

23, 700 

21,000 

25,400 

24,500 

25, 900

27,600 

27, 300 

28, 200 

27, 800 

29, 700

27, 800 

38, 100 

35,400 

33, 200 

30,000

26, 000 

23, 300 

23, 700 

27, 200 

20, 200

30, 100 

26, 200 

21,600 

18, 800 

17, 400

15,800 

14, 900 

14, 400 

s 21, 500 

14, 800 

13, 800

761, 300

June

Mean

charge 

'secondfeet)

188 

220 

211 

202 

188

193 

193 

283 

301 

270

278 

229 

159 

147 

198

247 

238 

260 

336 

262

238 

265 

283 

301 

310

306 

314 

319 

328 

324

7,591

Suspended sediment

Mean 

oncent-»tion 

(ppm)

21, 500 

23,400 

21, 800 

19, 700 

20, 200

24, 100 

30, 300 

26, 800 

27,300 

26, 300

25, 700 

22, 700 

22, 700 

29, 900 

36, 300

32,600 

35,000 

33,500 

71, 100 

63, 100

40, 000 

33, 800 

35,900 

35,600 

33, 900

30, 200 

27, 700 

24, 300 

27, 800 

27, 000

Tons 

per 

day

10, 900 

13,900 

12,400 

10, 700 

10, 300

12, 600 

15,800 

20,500 

22, 200 

19, 200

19, 300 

14,000 

9,750 

11,900 

20, 100 

22,500 

23, 300 

24, 400 

s 78, 700 

s 52, 800

26, 700 

25, 100 

28, 400 

30,000 

29, 400 

25,000 

23,500 

20, 900 

24, 600 

23,600

682, 400

September

216 

229 

238 

260 

252

220 

211 

206 206" 

252

274 

292 

265 

216 

184 

184 

171 

151 

147 

571

254 

202 

167 

98 

82

90 

82 

75 

80 

70

5,945

25,500 

22, 800 

24, 200 

26, 000 

23, 800

26, 200 

27,200 

27, 000 

2\ 400 

27,800

31, 600 

31,000 

31, 000 

2" 500 

23, 200

21, 600 

2', 000 

19,500 

18,000 

7i5, 700

5', 200 

3% 500 

36,500 

19, 000 

14, 800

14, 800 

16,900 

16,500 

18, 000 

IP, 800

14,900 

14, 100 

15,600 

18, 300 

16,200

15,600 

15,500 

15,000 

14, 700 

18,900 

22, 600 

24, 400 

21,500 

15, 500 

11,500 

10,200 

9,700 

7,950 

7,140 

s!82,000 

36,400 

17, 200 

17, 100 

5,030 

3,280

3,600 

3,740 

3,340 

3,890 

3,740

568, 600

Total discharge for year (second-foot-days) . 

Total load for year (tons)..................

44,057

3,406,000

e Estimated.

s Computed by subdividing day.
YELLOWSTONE RIVER BASIN Continued 

FIVEMILE CREEK NEAR SHOSHONI, WYO. Continu

Particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Oct. 3, 1949. ............

Mar. 28 ................

Apr. 29.......... .......

May 15 .................

July 8 ..................

July 17 .................

July 26 .................

a Mean daily discharge

Time

4:45 p. m. 

3:36 p.m. 

9:30 a. m. 

3:25 p.m. 

5:45 p.m.

4:30 p, m. 

4:55 p, m. 

12:15 p.m. 

3:45 p.m. 

3:10 p.m.

3:10 p. m. 

2:30 p.m. 

2:30 p.m. 

4:45 p.m. 

3:25 p.m.

3:25 p.m. 

5:25 p.m. 

12:10 p. m. 

10:35 a.m. 

4:20 p. m.

2:40 p.m. 

12:00 p. m. 

10:15 a.m. 

3:15 p.m. 

2:30 p. m.

12:20 p.m. 

2:50 p.m. 

8:15 p.m. 

8:1 5 p.m. 

11:45 p.m. 

2:30 a.m. 

1:25 p.m. 

11:00 a. m.

Discharge 

(secondfeet)

72 

78 

53 

55 

78

a 55 

37 

44 

58 

40

40 

47 

47 

100 

155

155 

124 

114 

167 

310

274 

716 

332 

278 

378

328 

346 

812 

812 

2,300 

1,020 

472 

314

Suspended sedi

Concentration 

of sample 

(ppm)

8,300 

10, 100 

6,810 

7,020 

23, 800

27, 700 

11, 600 

13,000 

14, 200 

9,980

9,980 

14, 600 

14, 600 

13, 800 

17, 300

17, 300 

13, 100 

13, 800 

22, 400 

27,000

23,800 

160, 000 

35,200 

35,400 

36, 600

30, 400 

31,000 

66,000 

66, 000 

172, 000 

155,000 

65,600 

2,8000

Concentration 

of suspension 

analyzed 

(ppm)

1,560 

2,040 

1,350 

2,590 

11, 800

14, 300 

7,190 

3,460 

4,080 

8,190

8,200 

10, 800 

4,620 

4,200 

12, 000

5,210 

6,290 

2,170 

5,750 

2,070

5,720 

6,430 

3,920 

5,940 

4,200

6,070 

3,430 

3,100 

3,070 

6,730 

5,440 

4,040 

3,950

Percent finer 

0.002

24

31 

31

17

12

25 

24

22

25

0.004

16 

26 

10 

16 

26

26 

30 

32 

38 

1

40 

1 

43 

33

22 

37 

20 

39 

18

33 

30 

26 

30 

26

28 

29 

6 

34 

28 

26 

34 

33

0.008

23 

36 

14 

21

38

4

50 

3 

52

3 

30

26

41 

38

37

24 

45

0.016

28 

43 

19 

27 

42

41 

48 

50 

55 

58

62 

55 

58 

50 

39

38 

52 

33 

56 

36

50 

50 

37 

46 

36

42 

42 

56 

5<? 

44 

40 

49 

47

0
YELLOWSTONE RIVER BASIN Continued 

FIVEMILE CREEK NEAR SHOSHONI, WYO. Continu

Particle-size analyses of suspended sediment, water year October 1949 to Se

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date nf collection

Aug. 7, 1950 ............

Aug. 29 .................

Sept. 1 .................

Sept. 12 ................

Sept. 21 ................

Sept. 29 ................

Time

10:00 a. m 

1:50 p. m

4:30 p. m 

10:25 a. m 

10:25 a. m 

5:50 p. m 

11:07 a. m

11:07 a. m 

11:30 a. m 

9:40 a.m. 

9:40 a. m 

3:40 p. m

10:55 a. m 

1:15 p. m 

3:15 p. m 

4:15 p. m 

4:15p.m 

11:22 a. m 

11:22 a. m

Discharge 

(secondfeet)

364 

355

274 

288 

288 

242 

265

265 

252 

229 

229 

310

180 

1,060 

2,360 

171 

171 

85 

85

Suspended sedi

Concentration 

of sample 

(ppm)

26, 800 

30, 800

25,200 

31,700 

31,700 

29, 200 

28,000

28,000 

37,000 

26, 900 

26, 900 

29, 800

23,500 

74, 000 

174, 000 

39, 000 

39,000 

16,600 

16,600

Concentration 

of suspension 

analyzed 

(ppm)

8,880 

4,180

4,510 

15,500 

13,000 

11,100 

16,200

2,140 

5,080 

16,600 

2,560 

3,580

4,200 

3,560 

5,120 

26, 300 

3,750 

10, 600 

3,220

Percent finer 

0.002

17 

26

24 

1 

20

0.004

38 

28

27

24 

27

24 

39 

1 

32 

27

27 

32 

23

32 

2 

26

0.008

1 

31

1 

28

2 

38

1 

48 

3 

32

0.016

55 

41

38 

35 

36 

40 

36

34 

56 

42 

41 

40

39 

43 

36 

49 

58 

39 

39

0
YELLOWSTONE RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

POWER LINE WASTEWAY NEAR PAVILLION, WYO.

LOCATION. One hundred fifty feet upstream from gaging station, 300 feet upstream from

mouth, and 4 miles northeast of Pavillion, Fremont County.

RECORDS AVAILABLE. Sediment records: May 1949 to September 1950 (discontinued). 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 4,490 ppm June 9; minim-un

daily, no flow many days.

Sediment loads: Maximum daily 202 tons July 25; minimum daily, 0 tons on many da-'g 

EXTREMES, May 1949-September 1950. Sediment concentrations: Maximum daily, 4,490 ppm

June 9, 1950; minimum daily, no flow many days each year. 

Sediment loads: Maximum daily, 202 tons July 25, 1950; minimum daily 0 tons on many days

each year.

REMARKS. No flow during period October to March; record is deleted. Records of discharge 

for water year October 1949 to September 1950 given in Water-Supply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

9

13

ifi

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

April

Mean

charge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(ppm)

-

Tons 

per 

day

0

May

Mean

charge 

(secondfeet)

0 

0 

0 

0 

1.4

4.7 

4.7 

5.0 

4.7 

4.7

5.7 

7.2 

7.2 

6.8 

7.8

2. 1 

.2 

.4 

.3 

.2

.2 

.4 

5.1 

10 

4.8

.5 

2.1 

14 

12 

15 

7.5

134.7

Suspended sediment

Mean 

concentration 

(PPm)

40

92 

197

130 

175 

114 

115 

135 

133

75 

175

88

-

Tons 

per 

day

0 

0 

0 

0 

e.2

el. 2 

e.9 

e.8 

e.6 

.5

si. 6 

3.8 

e3.0 

2.4 

3.7 

sl.O 

(t) 

.1 

.1 

(t) 

(t) 

(t) 

e3.0 

4.7 

el. 5

.1 

el. 5 

e!2 

elO 

e!2 

e7.0

72

June

Mean 

discharge 

( second - 

feet)

2.2 

2.8 

6.0 

6.8 

7.2

5.9 

7.1 

9.5 

13 

13

12 

9.8 

7.2 

14 

12

11 

11 

11 

18 

15

20 

24 

23 

17 

16

13 

8.8 

7.5 

7.5 

7.5

338.8

Suspended sedin-ent

Mean 

concentration 

(ppm)

1,850

1,820

1,060 

4,490

2,150 

2,800

1,520

1,900 

1,440

1,920 

3,130 

1,640

~

Tors 

peda;>

6.0 

14 

e30 

e34 

35

22 

20 

70 

158 

e!40

e.90 

57 

e48 

106 

e70

45 

e48 

e48 

e!40 

e85 

103 

ellO 

89 

e70 

e80

67 

e60 

63 

e48 

33

1,990

e Estimated.

s Computed by subdividing day.

t Less than 0.1 ton.
MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

POWER LINE WASTEWAY NEAR PAVILLION, WYO. Continued

Suspended sediment, water year October 1949 to September 1950--Continued

Day

0

Q

19

1 1

1 ft

09

no

25

9ft

TotalJuly

Mean 

discharge 

(secondfeet)

8.1 

12 

15 

16 

20

17 

17 

16 

16 

17

14 

9.0 

4.7 

2.9 

4.0 

11 

10 

11 

11 

12

18 

17 

18 

24 

32

30 

22 

21 

23 

21 

19

488.7

Suspended sediment

Mean 

concentration 

(ppm)

580 

1,050

890

1,760 

1,370

2,140 

1,400

1,620

1,500 

2,200 

1,340

355 

360

--

Tons 

per 

day

e34 

e85 

e85 

e28 

31

e34 

48 

e46 

e40 

41

e48 

43 

e20 

11 

e!8

e55 

58 

e55 

42 

e48

79 

e75 

e75 

97 

s202

109 

e38 

20 

e20 

e!8 

18

1,620

Total discharge for year (second-foot day 

Total load for year (tons) ......... ....

August

Mean 

discharge 

(secondfeet)

18 

19 

18 

17 

14

12 

11 

8.8 

10 

13

16 

20 

21 

21 

23 

24 

23 

24 

26 

25

24 

21 

16 

13 

12

8.8 

6.2 

7.8 

9.5 

11 

13

506.1

Suspended sediment

Mean 

concentration 

(ppm)

1,270 

690

1,150 

1,820 

880

880

440 

320

195 

570 

680

330 

250

--

Tons 

per 

day

e 28 

65 

e55 

32 

e30

37 

e44 

e42 

49 

e42

38 

e48 

e50 

50 

e42

29 

e22 

21 

e20 

e!6

13 

e 18 

25 

e24 

22

e!4 

e6.0 

6.9 

e8.0 

7.4 

e!4

918

September

Mean 

discharge 

(secondfeet)

14 

15 

18 

18 

19

19 

21 

19 

17 

19

18 

13 

13 

12 

12

11 

11 

11 

11 

18

12 

9.8 

1.5 

0 

0

0 

0 

0 

0 

0

332.3

Suspended sediment

!*<*an 

concentration 

(ppm)

610

540 

490

300 

340

220 

315 

170 

140 

150

40 

60

140 

80

--

3) ....................................................

Tons 

per 

day

23 

e26 

e26 

26 

25

15 

e22 

17 

e!2 

e!2

11 

11 

6.0 

4.5 

4.9

63. 5 

e2.0 

1.2 

1.8 

e42

4.5 

2.1 

e.2 

0 

0

0 

0 

0 

0 

0

299

1,800.6 

4,900

e Estimated.

s Computed by subdividing day.
YELLOWSTONE RIVER BASIN Continued 

POWER LINE WASTEWAY NEAR PAVILLION, WYO. Con

Particle-size analyses of suspended sediment, June 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanica

Date of collection

June 9, 1950 ............

June 28 .................

Time

12:30 p. m. 

3:15 p. m.

Discharge 

(secondfeet)

13 

6.2

Suspended se

Concentration 

of sample 

(ppm)

4,520 

2,850

Concentration 

of suspension 

analyzed 

(ppm)

2,740 

1,730

Percent fin

0.002 0.004

58 

64

0.008 0.016

81 

88
96 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

PAVILLION DRAIN NEAR PAVILLION, WYO.

LOCATION. At gaging station, half a mile upstream from mouth and 8 miles east of

Pavillion, Fremont County.

RECORDS AVAILABLE. Sediment records.: September 1948 to September 1950 (discontinued). 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 12,600 ppm Jrne 16; minimum

daily, not determined. 

Sediment loads: Maximum daily, 1,070 tons Aug. 16; minimum daily, less than 1 ton on

many days. 

EXTREMES, 1948-50. Sediment concentrations: Maximum daily, 21,300 ppm May 21, 1949;

minimum daily, not determined. 

Sediment loads: Maximum daily, 1,360 tons July 14, 1949; minimum daily, less than 1

ton on many days each year. 

REMARKS. Records of discharge for water year October 1949 to September IS 50 given in

Water-Supply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

2

o

18 ...... 

19 ......

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

charge 

(secondfeet)

3.8 

2.2 

1.3 

1.2 

1.2

1.2 

1.3 

1.4 

1.5 

1.4

1.2 

1.2 

1.2 

1.2 

1.4

1.5 

1.5 

1.6 

1.6 

1.8

3.1 

2.9 

2.2 

2.0 

1.9

1.8 

.7 

.6 

.5 

.3 

.5

52.2

Suspended sediment

Mean 

concentration 

(ppm)

1,180 

520 

195 

170 

181

138 

154

206

142 

122

152 

343

390

315

238 

244

310

-

Tons 

per 

day

12 

3

(t),

1 

e2

3 

e3 

e2 

2

el

43

November

Mean

charge 

(secondfeet)

1.2 

1.2 

1.2 

1.3 

1.3

1.3 

1.4 

1.4 

1.5 

1.2 

1.2 

1.4 

1.2 

1.4 

1.3

1.3 

1.3 

1.5 

1.5 

1.2

1.2

1.3 

1.3 

1.2 

.9

.9 

.9 

.8 

.8 

.9

36.5

Suspended sediment

Mean 

concentration 

(ppm)

178 

310

425 

400

328

350

395 

422

320

220

256 

310 

145

Tons 

per 

day

(t) 

(t) ) 

) -

el 

(t)

34

December

Mean 

discharge 

(secondfeet)

0.9 

.9 

.9 

.8 

.8

.7 

.7 

.7 

.6 

.6 

.5 

.3 

.3 

.2 

.2

.2 

.1 

.1 

.1

.1

. 1 

.2 

.2 

.2 

.3

.4 

.4 

.4 

.4 

.4 

.4

13.1

Suspended sediment

B'*>an 

concentration 

(ppm)

256 

185

187 

157

132

97

116

111

73 

66

50 

57

Tons 

per 

day

(t)

5

e Estimated. 

t Less than 1 ton.
YELLOWSTONE RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

PAVILLION DRAIN NEAR PAVILLION, WYO.--ContInued

Suspended sediment, water year October 1949 to September 1950 Continued

97

Day

1ft

1ft

20

21

22 

24

31 

Total2

7 

9 

12- 

1ft

19 

20

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

January

Mean

charge 

(secondfeet)

0.4 

.3 

.2 

.1 

.1

.il 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.3 

.3

.4

.4 

.4 

.3 

.3 

.3

.3 

.3 

.2 

.2 

.2 

.1

7.4

Suspended sediment

Mean 

concentration 

(ppm)

112

310 

408

380

416 

573

400

-

Tons 

per 

day

W

6

April

.3

.4 

.6 

.5 

.5

.5 

.4 

.3 

.2 

.2

.8 

.7 

.7 

.8 

.8

.8 

.8 

.7 

.7 

.8 

.8 

.8 

.8 

.8 

.9 

.9 

1.6 

6.4 

1.6 

1.0

37.1

1,200 

1,200 

1,810

1,770

1,080 

1,280

1,050 

1,100

900 

610

790

610 

670

520 

1,910 

7,460 

1,920 

1,690

e4 

e5

5 

5 

7

7 

e6 

e5 

e4 

3 

3 

e2 

2 

2 

e2

e2 

2 

1 

el 

2 

e2 

el 

el 

1 

2 

1 

S42 

sl67 

8 

5

300

February

Mean

charge 

(secondfeet)

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1

.1 

.1

.1 

.1 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.3

.4 

.6 

.8 

.9 

1.0

1.0 

1.0 

1.0

9.6

Suspended sediment

Mean 

concentration 

(ppm)

35

46 

59

46 

280

380 

450

-

Tons 

per 

day

(t)

8

May

0.9 

.9 

1.1 

1.1 

1.0

.9 

1.2 

1.3 

1.2 

.9 

.8 

.8 

.8 

.8 

1.0

.8 

11 

8.6 

5.5 

4.8 

4.8 

4.6 

3.5 

4.7 

4.4

6.6 

4.4 

9.7 

8.1 

6.6 

4.6

107.9

1,130 

1,000 

1,110 

1,100 

1,090

880 

1,640 

2,300 

1,420 

940

800 

770 

820 

880 

1,100

1,000 

9,030 

6,020 

2,750 

2,750 

3,000 

2,310 

1,200 

2,600 

2,620

2,350 

1,890 

5,120 

4,990 

3,900 

4,690

-

3 

2 

3 

3 

3

2 

5 

11 

5 

2

2 

2 

2 

2 

3

2 

S308 

140 

41 

36 

39 

29 

11 

33 

31 

42 

22 

134 

s!15 

6u 

58

1,160

March

Mean

charge 

(secondfeet)

1.0 

.9 

.9 

.9 

.9

.9 

.8 

.6 

.6 

.5 

.5 

.5 

.5 

.7 

.8

.9 

.9 

.9 

.9 

.9

.9 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.1 

1.2 

1.3

27.0

Suspended sediment

Mean 

concentration 

(ppm)

286

798 

565 

475 

615

300 

330

1,080

1,180

1,100 

3,050

1,390

-

Ions 

per 

day

(t) 

el 

el 

e2 

e2

2 

1

 (t)

e3

8 

e6

4

83

June

6.1 

16 

21 

17 

18

18 

18 

21 

22 

18

20 

18 

14 

23 

19

26 

26 

23 

30 

29 

20 

17 

17 

14 

16

17 

18 

18 

21 

23

584. 1

6,210 

7,500 

9,290 

9,510 

10,600

9,410 

8,190 

7,550 

6,950 

7,460

7,150 

7,990 

6,930 

9,270 

9,480

12,600 

11,300 

9,600 

8,850 

7,500 

7,470 

6,840 

6,290 

6,060 

5,140

6,130 

6,000 

6,980 

6,000 

7,580

-

102 

324 

527 

437 

510

457 

398 

428 

413 

363

386 

388 

262 

576 

486

S951 

793 

596 

717 

587 

403 

314 

289 

229 

222

281 

292 

339 

340 

471

12,880

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.
98 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

PAVILLION DRAIN NEAR PAVILLION, WYO. Continued

Suspended sediment, water year October 1949 to September 1950--Continued

Day

4

19

1ft

23

25

27

9ft

29

TotalJuly

Mean

charge 

(secondfeet)

25 

23 

22

36 

37

32 

36 

28 

27 

26

26 

18 

24 

19 

18

20 

22 

23 

21 

18 

20 

23 

27 

27 

38

27 

24 

25 

26 

26 

26

790

Suspended sediment

Mean 

concentration 

(ppm)

6,300 

5,700 

5,690 

6,300 

8,000

8,050 

10, 300 

9,600 

8,900 

9,380

8,250 

7,730 

7,120 

7,590 

5,790

6,800 

6,200 

6,500 

6,300 

5,300

5,260 

6,400 

5,040 

5,170 

7,330 

9,530 

7,200 

6,100 

7,300 

6,700 

7,000

--

Tons 

per 

day

425 

354 

338 

612 

799

696 

1,000 

726 

649 

658

579 

376 

461 

389 

281

367 

368 

404 

357 

258

284 

297 

367 

377 

S888

S695 

467 

412 

512 

470 

491

15,460

Total discharge for year (second-foot-day 

Total load for year (tons) ...............

August

Mean 

discharge 

(secondfeet)

29 

28 

27 

28 

28

28 

32 

29 

30 

34

36 

41 

38 

41 

41

42 

38 

35 

26 

20

20 

20 

17 

13 

12 

11 

13 

14 

16 

20 

19

826

Suspended sediment

Mean 

concentration 

(ppm)

5, SOU 

5,700 

5,380 

5,500 

7,450

10, 100 

9,400 

9,500 

6,500 

5,500

4,660 

8,200 

8,200 

6,100 

6,950

9,400 

9,600 

8,300 

6,300 

5,320

5,200 

4,400 

4,100 

3,500 

3,350

3,750 

4,300 

3,800 

4,200 

4,750 

4,900

--

Tuns 

per 

day

415 

430 

392 

416 

563

764 

812 

744 

526 

505

453 

908 

841 

675 

769

1,070 

985 

784 

442 

287

281 

238 

188 

123 

109

111 

151 

144 

181 

256 

251

14,810

September

Mean 

discharge 

(secondfeet)

21 

20 

19 

18 

19

16 

14 

11 

10 

16

18 

16 

13 

12 

13 

11 

13 

10 

9.4 

23 

11 

8.7 

6.4 

4.1 

3.8

2.4 

1.4 

1.5 

2.2 

3.3

347.2

Suspended sediment

tfean 

coicentration 

(pom)

4,450 

3, SOU 

3,700 

3,500 

3,300

2,700 

1,500 

1,200 

1,950 

1,750

2,000 

1,900 

1,450 

1,150 

1,650

1,150 

1,700 

950 

900 

4,050

2,400 

1,800 

600 

350 

350 

300 

250 

400 

350 

300

--

Tons 

per 

day

252 

205 

190 

170 

169

117 

57 

36 

53 

76

97 

82 

51 

37 

58 

34 

60 

26 

23 

252

71 

42 

10 

4

4

2 

(t) 

2 

2 

3

2,190

s) ...................................................... 2, 853. 1

........................................................ 46, 980

s Computed by subdividing day. 

t Less than 1 ton.
YELLOWSTONE RIVER BASIN Continued 

PAVILLION DRAIN NEAR PAVILLION, WYO. Continued

Particle-size analyses of suspended zediment, September 1949 to Septem

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date oi collection

Oct 1

Ma.v 17

Sept. 1 ..................

Time

9:31 a.m. 

3:40 p.m. 

12:15 p.m. 

6:50 p.m. 

7:35 a.m.

6:00 p.m. 

8:00 p.m. 

6:30 p. m. 

7:45 p.m. 

8:05 a.m. 

6:45 p. m.

8:30 a.m. 

8:00 p.m. 

6:25 p.m. 

8:20 p. m. 

1:50 p.m. 

6:35 a. m.

Discharge 

(secondfeet)

8 

a3. 8 

al.O 

1.2 

16.2

6.8 

3.8 

13.5 

16.5 

13.2 

26.4

22.0 

17.8 

67.2 

42.2 

36.5 

21.6

Suspended sedi

Concentration 

of sample 

(ppm)

552 

1,500 

1,650 

1,370 

11,100

9,460 

9,250 

9,850 

8,660 

7,000 

8,670

5,800 

6,450 

13,400 

7,960 

8,740 

5,420

Concentration 

of suspension 

analyzed 

(ppm)

493 

927 

1,370 

900 

7,360

6,290 

5,340 

5,700 

5,360 

3,400 

4,240

2,400 

2,590 

8,410 

3,780 

3,900 

1,840

Percent finer 

0.002

40

0.004

27 

26 

53 

56 

50

47 

44 

46 

37 

42 

37

30 

30 

38 

36 

35 

25

0.008

36 

40 

66

0.016

43 

52 

80 

74 

72

65 

61 

64 

51 

57 

51

39 

39 

54 

50 

48 

33

0

a Mean daily discharge.
100 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

OCEAN DRAIN SEAR PAVILLION, WYO.

LOCATION. At gaging station, a quarter of a mile upstream from mouth and Hi miles east of

Pavillion, Fremont County.

RECORDS AVAILABLE. Sediment records: August 1948 to September 1950 (discontinued). 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 7,050 ppm Apr. 6; minimum daily,

not determined. 

Sediment loads: Maximum daily, 886 tons July 25; minimum daily, less than 1 ton on many

days during January and February. 

EXTREMES, 1948-50. Sediment concentrations: Maximum daily, 7,330 ppm May 21, 1949; minimum

daily, not determined. 

Sediment loads: Maximum daily, 950 tons June 28, 1949; minimum daily, l«ss than 1 ton on

many days during January and February 1950. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in WaterSupply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

18 

19 

20 

21 

22 

23 -- 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

discharge 

(secondfeet)

44 

30 

28 

28 

31

28 

26 

26 

26 

29

30 

26 

24 

24

24

24 

24 

24 

24 

25

27 

29 

29 

30 

30

30 

30 

30 

30 

28 

28

866

Suspended sediment

Mean 

concentration 

(ppm)

804 

625 

578 

642 

772

623 

684 

631 

650 

819

730 

673 

690 

578 

560

599 

560 

517 

502 

605

625 

618 

629 

558 

648

731 

970 

.664 

625 

626 

575

-

T,ons 

per 

day

96 

51 

44 

49 

65

47 

48 

44 

46 

64

59

47 

45 

37 

36

39 

36 

34 

33 

41

46 

48 

49 

45 

52

59 

79 

54 

51

47 

43

1,530

November

Mean

charge 

(second - 

feet)

27 

27 

27 

26 

26

26 

25 

24 

24 

24

24 

23 

23

21 

19

19 

19 

19 

19

18

19 

19 

19 

19 

19

18 

19 

18 

18 

18

646

Suspended sediment

Mean 

concentration

(ppm)

634 

616 

618 

579 

592

729 

827 

861 

899 

899

774 

707 

774 

645 

595

490 

485 

510 

565 

530

559 

554 

530 

471 

492

432 

398 

439 

384 

407

--

Tons 

per 

day

46 

45 

45 

41 

42 

51 

56 

56 

58 

58

50 

44 

48 

37 

31

25 

25 

26 

29 

26

29 

28 

27 

24 

25

21 

20 

21 

19 

20

1,070

December

.Mean

charge 

(secondfeet)

18 

16 

16 

15 

15

14 

14 

14 

15 

16

16 

16 

16 

17 

18

18 

18 

17 

17 

17

17 

17 

17 

17 

16

16 

15 

13

12 

12 

12

487

Suspended sediment

K"f»an 

concentration 

(fom)

470 

430 

482 

411 

448 

540 

347 

590 

250 

142

40

102 

118 

140

565

390 

205 

380

492

329 

298 

271

237 

209 

219 

159 

160 

160

--

Tons 

per 

day

23 

19 

21 

17 

18

20 

13 

22

10 

6

2 

e4 

4

5 

7

e22

27 

18 

9 

17

23 

e!8 

15 

14 

12

10 

8 

8 

5 

5 

5

407
YELLOWSTONE RIVEK BASIN 101

YELLOWSTONE RIVER BASIN Continued

OCEAN DRAIN NEAR PAVILLION, WYO. Continued

Suspended sediment, water year October 1949 to September 1950 Continued

Day

18

9A

21 

go

24

Oc

27

no

29

31 

Total2

3

|Q

19

9A

21

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalJanuary

Mean

discharge 

(secondfeet)

12 

11 

10 

8.2 

7.4

7.0 

6.9 

6.9 

6.9 

6.8

6.8 

6.8 

6.2 

5.7 

5.3 

5.0 

4.4 

3.9 

3.9 

4.4

4.7 

5.0 

5.2 

5.4 

5.5

5.7 

5.8 

5.9 

6.1 

6.2 

6.4

197.4

Suspended sediment

Mean 

concentration 

(ppm)

171 

203 

175 

140 

110

90 

81 

70 

59 

55

53 

50 

46 

34 

35 

40 

38 

36 

40 

39

70

108 

75 

60

66

Tons 

per 

day

6 

6 

5 

3

2

2 

2 

1 

1 

1

(t) 

(t) 

(t) 

(t) 

(t) 

(t) 

(t) 

(t) 

(t) 

(t)

(t) 

« 

(t) 

el 

2

1 

« 

(t) 

(t) 

1 

el

47

April

13 

13 

13 

17 

21

29 

27 

29 

27 

30

32 

31 

31 

32 

32 

33 

34 

30 

31 

32

30 

30 

31 

26 

25

23 

23 

27 

30 

28

810

1,710

4,190

7,050 

6,580 

6,910

6,280

6,080 

6,080 

5,520 

5,500

4,170 

3,570 

3,450 

3,390

3,450

3,380 

3,270 

2,850 

2,970 

2,700 

2,770 

2,570

-

e55 

e55 

60 

elOO 

8268

552 

480 

541 

e460 

509

525 

509 

462 

475 

e420 

e380 

383 

289 

289 

293

279 

e280 

e280 

237 

221 

177 

184 

197 

224 

194

9,380

February

Mean

charge 

( second - 

feet)

6.8 

7.6 

8.8 

9.8 

11

12 

13 

15 

16 

16

16 

16 

16 

16 

16 

16 

16 

16 

16 

17

17 

18 

18 

17 

16

16 

15 

16

410.0

Suspended sediment

Mean 

concentration 

(ppm)

50 

97 

40

43

192 

190 

221

183

272 

310

449

535 

1,790 

2,800

2,180 

1,710

Tons 

per 

day

(t) 

2 

(t) 

(t) 

(t)

(t) 

e3 

8 

8 

10

e9 

e8 

8 

elO 

12 

e!2 

13 

e!6 

e!9 

21

e22 

26 

87 

129 

e95

e80 

88 

74

765

May

29 

32 

35 

34 

34

30 

32 

36 

35 

34

37 

34 

32 

33 

34 

39 

40 

39 

38 

36

35 

34 

38 

39 

45 

45 

42 

47 

45 

38 

37

1,138

2,660 

3,620 

2,700 

2,290 

2,580

2,560 

2,620 

2,340 

2,800 

2,600

3,780 

3,000 

2,600 

2,280 

2,700 

3,210 

3,170 

3,340 

2,470 

2,180

2,080 

2,270 

2,270 

2,080 

2,760 

2,290 

2,210 

2,580 

2,530 

2,100 

1,890

208 

313 

255 

210 

237

207 

226 

227 

265 

239

S412 

275 

225 

203 

248 

338 

342 

352 

254 

212

197 

208 

233 

219 

335 

278 

251 

327 

307 

215 

189

8,010

March

Mean

charge 

(secondfeet)

17 

19 

18 

18 

16

16 

16 

16 

17 

16

18 

22 

20 

17 

16 

16 

16 

15 

14 

16

17 

16 

16 

16 

16

16 

16 

16 

14 

14 

14

510

Suspended sediment

Mean 

concentration 

(ppm)

1,880 

1,830 

1,470

1,710 

2,970 

2,150 

1,630 

2,020

2,600 

Z,070 

1,610 

1,290 

1,560 

1,300

1,760

1,550 

2,190 

2,460 

2,500 

1,780

1,890 

1,880 

1,960 

1,870 

1,550

-.

Tms

f<ST

diy

86 

94 

71 

e70 

e65

74 

128 

93 

75 

87

e!30 

e!70 

140 

95 

70

56 

67 

53 

e60 

76

71 

95 

106 

108 

77

e65 

82 

81 

s83 

71 

59

2,660

June

32 

36 

39 

38 

35

34 

38 

44 

43 

45

42 

45 

39 

36 

40 

41 

44 

47 

46 

47

47 

48 

50 

53 

54 

54 

48 

41 

47 

47

1,300

1,900 

1,870 

1,930 

1,910 

1,840

1,840 

2,100 

1,990 

1,980 

2,220

2,970 

2,670 

2,490 

2,550 

2,660 

2,300 

2,600 

2,620 

2,800 

2,740

2,810 

2,610 

2,590 

2,620 

2,530 

2,310 

2,290 

2,580 

2,840 

2,970

-

164 

182 

203 

196 

174

169 

215 

236 

230 

270

337 

324 

262 

248 

287 

255 

309 

332 

348 

348 

357 

338 

350 

375 

369 

337 

297 

286 

360 

377

8,540

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.
MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

OCEAN DRAIN NEAR PAVILLION, WYO. Continued

Suspended sediment, -water year October 1949 to September 1950 Continued

Day

Q

1 fl

nn

25

27

31 

Total -

July

Mean

charge 

(secondfeet)

51 

54 

62 

60 

62

66 

65 

62 

59 

57

54 

50 

50 

49 

42

43 

44 

38 

42 

44

48 

47 

49 

52 

67

65 

63 

63 

64 

65 

66

1,703

Suspended sediment

Mean 

concentration 

(ppm)

2,860 

2,970 

3,120 

3,470 

3,570

,3,440 

3,100 

3,120 

2,770 

2,720

2,680 

2,490 

2,410 

2,040 

1,950

2,200 

2,300 

2,330 

2,430 

2,420

2,560 

2,670 

2,500 

2,500 

4,290

4,250 

3,500 

3,070 

2,820 

2,810 

2,320

Tons 

per 

day

394 

433 

522 

562 

598

613 

544 

522 

441 

419

391 

336 

325 

270 

221

255 

273 

239 

276 

287

332 

339 

331 

351 

s886

746 

595 

522 

487 

493 

413

13,420

August

Mean 

discharge 

(second - 

feet)

65 

62 

62 

63 

65 

65 

62 

60 

61 

61

62 

62 

56 

55 

55 

56 

55 

58 

62 

65

66 

62 

57 

57 

55

54 

53 

46 

44 

51 

47

1,804

Suspended sediment

Mean 

concentration 

(ppm)

2,650 

2,680 

2,650 

2,650 

2,960

3,400 

3,210 

3,200 

3,080 

2,900

2,800 

2,860 

2,950 

2,460 

2,630

2,330 

2,220 

2,100 

2,250 

2,450

2,160 

2,330 

2,230 

2,200 

2,150

2,050 

2,060 

2,280 

2,090 

2,400 

2,400

-

Tons 

per 

day

465 

449 

444 

451 

519

597 

537 

518 

507 

478

469 

479 

446 

365 

391

352 

330 

329 

377 

430

385 

390 

343 

339 

319

299 

295 

283 

248 

330 

305

12,470

September

Mean

charge 

(secondfeet)

46 

49 

50 

49

47

46 

45 

45 

51 

54

58 

63 

57 

50 

45

42 

42 

41 

41 

53

52 

44 

34 

32 

33

32 

30 

31 

29 

26

1,317

Suspended sediment

Mean 

concentration 

(oom)

2,400 

2,330 

2,000 

1,810 

1,520

1,500 

1,550 

1,500 

1,650 

1,730

1,420 

1,750 

1,580 

1,300 

1,260

1,200 

1,420 

1,260 

1,250 

2,200

1,460 

1,370 

1,090 

860 

850

1,000 

1,000 

800 

790 

920

-

Tons 

peiday

298 

308 

270 

239 

193

186 

188 

182 

227 

252

222 

298 

243 

176 

153 

136 

161 

139 

138 

315 

205 

163 

100 

74 

76

86 

81 

67 

62 

65

5,300

Total discharge for year (second-foot-days)1 Total load for year (tons) .................

11,188.4

63,600

s Computed by subdividing day.
YELLOWSTONE RIVER BASIN Continued 

OCEAN DRAIN NEAR PAVILLION, WYO. Continued

Particle-size analyses of suspended sediment, October 1949 to 

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanicall

Date of collection

July 25 ...............

Time

2:31 p.m. 

11:20 a.m. 

4:00 p.m. 

7:00 p.m. 

8:10 p.m.

7:45 p.m. 

5:00 p.m. 

6:20 a.m. 

6:40 a.m. 

6:45 p.m.

Discharge 

(secondfeet)

28 

16 

19 

a 39 

43

48 

45 

62 

59 

114

Suspended sed

Concentration 

of sample 

(ppm)

839 

3,350 

3,500 

4,060 

2,160

2,820 

2,880 

3,360 

3,160 

9,900

Concentration 

of suspension 

analyzed 

(ppm)

590 

1,570 

1,960 

3,310 

1,120

1,290 

1,320 

1,910 

1, 1'80 

7,030

Percent finer 

0.002

30

0.004

26 

35 

36 

33

37

29 

27 

36 

31 

44

0.006

40 

41

0.016

55 

48 

48 

57 

48

39 

43 

48 

34 

70

0

a Mean daily discharge.
104 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

DUDLEY WASTEWAY NEAR PAVILLION, WYO.

LOCATION. One hundred feet upstream from mouth and 12 miles east of Pavillion, Fremont

County.

RECORDS AVAILABLE. Sediment records: May 1949 to September 1950 (discontinued). 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, not determined; minimum daily,

no flow on many days.

Sediment loads: Maximum daily, 34 tons July 25; minimum daily, 0 tons on many days. 

EXTREMES, May 1949 to September 1950. Sediment concentrations: Maximum daily, not determined;

minimum daily, no flow on many days each year. 

Sediment loads: Maximum daily, 34 tons July 25, 1950; minimum daily, 0 tons on many days

each year. 

REMARKS. No flow during period January to March; record is deleted. Records of discharge

for water year October 1949 to September 1950 given in Water-Supply Paier 1176.

Suspended sediment, water year October 1949 to September 1950

Day

20 ----- -

21 

22 

23 

24 

25 ------

26 ------ 

27 

28 

29 

30 ------ 

31 

Total -

October

Mean

discharge 

(secondfeet)

1.7 

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

1.7

Suspended sediment

Mean 

concentration 

(PP«n)

Tons 

per 

day

eO.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

0.2

November

Mean 

discharge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(ppm)

Tuns 

per 

day

0

D' "' ember

Mean 

discharge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

0
YELLOWSTONE RIVER BASIN 105

YELLOWSTONE RIVER BASIN Continued 

DUDLEY WASTEWAY NEAR PAVILLION, WYO.--Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

g

18

91

28

31 

Total -

O

13

15 

17 

23

25 

26 

27 

28 

29 

30 

31 

Total

April 1

Mean

charge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

0

July

4.4 

3.7 

3.4 

3.2 

3.1 

2.6 

3.0 

3.6 

2.0 

.7

3.2 

2.9 

2.1 

1.4 

2.8

.8 

1.3 

3.0 

2.6 

.4

.5 

2.5 

4.0 

4.7 

6.0 

4.2 

7.5 

6.7 

4.7 

1.1 

1.7

93.8

178 

239 

88

SO

126 

55

54 

80

146

150 

1,390 

1,100

261

16

e2.2 

el. 8 

1.6 

el. 4 

2.0 

e.5 

.7 

e.9 

e.5 

.1

el. 4 

1.0 

e.5 

.2

e .7

e.l 

.2 

e.7 

.6 

e.l 

.2 

e.6 

e.9 

1.9 

s34 

12 

etS 

4.7 

el.O 

e.l 

.1

87.7

Total discharge for year (second -foot-day 

Total load for year (tons) ..............

May

Mean

charge 

(second - 

feet)

0 

0 

0 

0 

0

0 

0 

0 

1.5 

2.3

.1 

2.4 

.9 

.2 

.3

1.2 

2.7 

1.4 

1.8 

1.1

1.1 

2.3 

1.7 

.5 

.4

1.0 

3.3 

3.2 

3.6 

4.7 

2.5

40.2

Suspended sediment

Mean

concentration 

(ppm)

272

359

39 

90

192 

365 

80 

102

70 

100

124 

155

-

Tons 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

e2.9 

s2.5

(t) 

s3.4 

e.l 

(t) 

.1

si. 6 

2.7 

.3 

.5 

e.3

e.3 

e.6 

e.6 

.1 

e.l

.3 

el. 4 

el.O 

1.2 

e2.2 

1.0

23.2

August

3.7 

3.8 

1.4 

1.0 

1.5 

2.0 

2.8 

.2 

.3 

3.9

6.4 

5.5 

4.2 

3.8 

3.7

2.5 

1.4 

2.5 

4.1 

5.2 

4.7 

4.4 

4.4 

5.2 

6.0 

3.1 

4.5 

3.5 

2.8 

1.8 

.6

100.9

108 

81 

53

88

77

134

77 

82 

71

54 

61 

127

27 

158

eO.9 

1.1 

.3 

.1 

e.3 

e.5 

.7 

(t) 

(t) 

el.O

2.3 

el. 4 

el.O 

.8 

e.7

.6 

e.2 

.5 

e.6 

el.O

.7 

e.7 

.7 

el.O 

2.1 

e.7 

e.8 

.3 

e.4 

.8 

e.5

22.8

June

Mean

charge 

(second - 

feet)

3.7 

2.7 

.4 

.1 

2.7

5.4 

5.7 

7.8 

4.6 

.9

2.4 

.4 

1.2 

.8 

4.7

7.2 

5.1 

6.0 

7.2

7.7

5.9 

1.7 

.4 

1.0 

3.1

3.4 

3.7 

3.0 

4.2 

4.5

107.6

Suspended sediment

Mean 

concentration 

(ppm)

230

436

585 

337

90

70

545

315 

117

175 

132 

195

-

Tons 

per 

day

el. 6 

1.7 

e.l 

(t) 

s4.7

elT 

9.0 

e!3 

s4.6 

e.4

e.9 

.1 

e.4 

.2 

e5.3

11 

e<5.5 

e«5.5 

e7.0 

e<5.5

5.0 

el. 5 

.1 

e.6 

el. 8

1.6 

el. 9 

1.1 

e2.0 

2.4

io,->

September

0.3 

.3 

.9 

1.4 

2.3 

6.0 

5.6 

4.8 

3.7 

4.3

4.9 

4.5 

5.5 

5.1 

4.3

5.3 

4.7 

4.3 

3.6 

2.6

.2 

0 

0 

0 

0 

0 

0 

0 

0 

0

74.6

50

191 

213 

94

50 

50 

33

28

neO.5 

.7 

el.O 

3.5 

eS.O 

1.2 

e.5 

e.6

.7 

e.7 

.7 

e.6 

.4 

e.6 

e.5 

.3 

e.l 

(t)

(t) 

0 

0 

0 

0 

0 

0 

0 

0 

0

15.7

........................................................ 258

e Estimated.

s Computed by subdividing day.

t Less than 0.1 ton.
106 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

KELLETT DRAIN NEAR PAVILLION, WYO.

LOCATION.--At gaging station, 0.1 mile upstream from mouth, 12} miles north of Riverton,

and 13i miles southeast of Pavillion, Fremont County.

RECORDS AVAILABLE.--Sediment records: December 1948 to September 1950 (discontinued). 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 11,200 ppm July 28; minimum

daily, not determined. 

Sediment loads: Maximum daily, 305 tons July 25; minimum daily, less than 0.1 ton on

some days. 

EXTREMES; 1948-50. Sediment concentrations: Maximum daily, 11,200 ppm Jily 28, 1950;

minimum daily, not determined. 

Sediment loads: Maximum daily, 305 tons July 25, 1950; minimum daily, less than 0.1

ton on some days each year. 

REMARKS. Records of discharge for water year October 1949 to September 1350 given in

Water-Supply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

3

19

14 -

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

October

Mean

charge 

(secondfeet)

0.7 

.7 

.7 

.7 

.7

.7 

.8 

.8 

.8 

.7 

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.8

1.2 

1.4 

.7 

.5 

.6

.7 

.7 

.7 

.8 

.8 

.8

23.3

Suspended sediment

Mean 

concentration 

(ppm)

49 

58

192 

145

189 

160

147 

132

Tons 

per 

day

(t) 

eO. 1

e.3

el. 6 

el. 9

e.3

10

November

Mean

charge 

(second - 

feet)

0.8 

.7 

.7 

.7 

.7

.8 

.8 

.8 

.7 

.8

.7 

.8 

.8 

.8 

.8

.8 

.7 

.7 

.7 

.6

.7 

.7 

.7 

.7 

.7

.6 

.5 

.5 

.5 

.6

21. 1

Suspended sediment

Mean 

concentration 

(ppm)

139 

140

168 

146

103 

93

203 

227

-

Tons 

per 

day

eO. 3 

e.4

e.2

e.4 

e.3

9.5

December

Mean

charge 

(secondfeet)

0.7 

.6 

.6 

.5 

.5

.6 

.6 

.7 

.8 

.8

.8 

.8 

.8 

.7 

.7

.7 

.7 

.7 

.6 

.6

.6 

.6 

.6

.5 

.5

.5 

.5 

.5 

.5 

.6 

.5

19.4

S ispended sediment

Mean 

concentration 

(ppm)

270

276 

247 

238

306

513 

352

246 

287

-

Tons 

per 

day

eO.4

e.6

e.8

.6 

e.6

e.4

16

e Estimated.

t Less than 0.1 ton.
YELLOWS-TONE RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

KELLETT DRAIN NEAR PAVILLION, WYO.--Continued

Suspended sediment, water year October 1949 to September 1950 Continued

107

Day

19

13

15-- 

Ifl

22

no

24

nc

27

9ft

Total12

18 

19 

20 ......

21 

22 

23 _ _ _

24 

25 

26 

27 

28 ----- - 

29 

30 ------ 

31 ......

Total

January

Mean

charge 

(secondfeet)

0.5 

.5 

.4 

.4 

.4

.4 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5 

.5 

.5. 

.5 

.5 

.6

.6 

.6 

.6 

.6

.5

.5 

.4 

.4 

.4 

.4 

.4

15.1

Suspended sediment

Mean 

concentration 

(ppm)

512 

216

451 

472

489 

967

1,080

Tons 

per 

day

eO.6 

el. 3

27

AprU

0.7 

.6 

.5 

.5 

.4

.4 

.4 

.5 

.6 

.5 

.5 

.6 

.6 

.6 

.6 

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6 

.6 

.6 

.6 

.5 

.5

16.8

287 

319

303

350

400 

299 

282

222

259 

197

237

eO.4 

e.5'

. e.4

13

February

Mean

charge 

(second - 

feet)

0.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

..4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.5

.5

11.4

Suspended sediment

Mean 

concentration 

(ppm)

903 

938

1,150 

2,280

Tons 

per 

day

el.O

el. 2

e3.2 

3.1

34

May

0.5 

.5 

.6 

.5 

.5

.5 

.6 

.7 

.7 

.7 

.6 

.6 

.6 

.7 

.6 

.6 

.6 

.6 

.6 

.6

.6 

.5 

.5 

.5 

.6 

.5 

.8 

.9 

.9 

.9 

.7

19.3

340 

282

290 

290 

312

308 

224

166 

154 

147 

158 

192

197 

185 

178

--

eO.4

e.6

e.7 

e.6 

.5 

.5 

.5 

e.5 

e.7 

.5

.4

e.3 

.2 

.2 

.2 

.3 

.3 

e.5 

e.5 

.5 

.4 

.3

13.2

March

Mean

charge 

(secondfeet)

0.5 

.4 

.5 

.6 

.7

.7 

.6 

.6 

.5 

.5

.5 

.6 

.6 

.5 

.5

.4 

.4 

.3 

.4 

.4 

.5 

.5 

.7 

.7 

.7 

.4 

.4 

.4 

.5 

.5 

.5

16.0

Suspended sediment

Mean 

concentration 

(ppm)

2,140 

1,670 

950

1,300 

850 

920

675 

800 

850

820 

1,120

640 

670 

500

390 

390 

320

Ton." ' 

per 

day

2.9 

1.8 

1.3 

el. 6

e2.8

2.5 

el. 8 

1.4 

el.l 

1.2

el.O 

e.8 

1.1 

1.1 

1.1

.9 

1.2

e.6 

e.7 

e.7

e.8 

.9 

1.3 

.9 

e.9

e.4

.4 

e.4 

.5 

e.5 

.4

35

June

0.8 

.8 

.8 

.9 

1.0

2.1 

1.0 

1.6 

1.7 

1.8 

1.8 

1.8 

2.0 

1.5 

1.5

1.5 

1.4 

1.5 

1.3 

1.0

1.1 

1.0 

1.0 

1.1 

.8 

1.2 

1.4 

2.2 

3.7 

3.9

45.2

168

226

1,170 

1,490 

1,490 

2,150

2,350 

4,170 

3,360 

3,470 

2,200

1,920 

2,100 

1,010

1,350 

1,000 

1,230 

2,270 

3,170

0.4 

e.3 

e.3 

e.3 

.6

6.6 

4.0 

6.4 

9.9 

e!3 

e!2 

11 

22 

14 

14

8.9 

e8.5 

e9. 0 

e8.0 

e5. 5 

5.7 

5.7 

2.7 

<?4.2 

e2.2

4.4 

3.8 

7.3 

23 

33

2.' 7
108 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

KELLETT DRAIN NEAR PAVILLION, WYO. Continued

Suspended sediment, water year October 1949 to September 1950--Continued

Day

2

7 . 

21

22

27

9ft

29

30 

TotalJuly

Mean

charge 

(secondfeet)

2.6 

2.0 

2.6 

2.9 

3.9

3.9 

3.4 

3.2 

2.4 

2.6

2.6 

3. 1 

3.2 

3.6 

4.1 

4.0 

3.5 

2.6 

4.2 

3.8 

2.8 

1.9 

1.7 

2.0 

5.7 

.9 

1.4 

1.5 

1.5 

1.5 

1.6

86. V

Suspended sediment

Mean 

concentration 

(ppm)

1,000

3,000 

3,220

2,340

1,790 

2,540 

1,690 

1,880

1,840 

1,860 

2,050 

4,190

4,380

3,700 

10,400

9,300 

10, 200 

11,200

2,600

Tons 

per 

day

e22

e8.5 

e8.0 

e7. 5 

11

32

30 

e26 

e!6 

16

13 

21 

15 

18 

e22

e20 

17 

13 

23 

43

33

e20 

e!7 

20 

s305 

23 

39 

45 

elS 

elO 

11

920

Total discharge for year {second-foot-day 

Total load for year (tons) ...............

August

Mean

charge 

(second - 

feet)

1.1 

1.2 

1.4 

1.4 

1.4

1.5 

1.7 

2.9 

2.8 

2.9

2.3 

2.7 

3.5 

3.6 

3.4

3.6 

4.5 

4.0 

3.6 

3.2

4.0 

3.6 

3.2 

2.7 

2.3

2.0 

1.8 

1.7 

1.3 

1.3 

1.5

78.1

Suspended sediment

Mean 

concentration 

(ppm)

4,650 

3,600 

4,850 

4,080

6,360

5,800 

8,320

4,820

5,200 

5,950

5,950 

6,460 

8,700

9,200 

7,700 

3,620 

3,980

3,110 

3,440 

3,740 

2,800

Tons 

per 

day

14 

12 

18

15 

e!3

e!6 

29 

e48 

44 

65

30 

e32 

e42

51 

55 

58 

78 

94 

e75 

e65 

e80 

89 

67 

26 

25

e20 

e!6 

14 

12 

13 

11

1,230

September

Mean 

discharge 

(second - 

feet)

1.6 

1.7 

2.0 

2.2 

2.4

2.7 

2.2 

2.3 

2.3 

3.1

1.7 

1.5 

1.3 

1.2 

1.1

1.0 

1.0 

1.0 

1.0 

1.9 

1.0 

1.0 

.9 

.9 

1.0

1.0 

.9 

.9 

1.0 

1.0

44.8

Suspended sediment

Mean 

concentration 

(ppm)

1,780

2,600 

3,160

3,300

5,000 

3,150 

1,900 

1,300 

960

980 

820

1,400 

2,220

910 

730 

810 

630

715

Tons 

per 

day

7.7 

e7.5 

elO 

el3 

17

23

elS 

20 

e20 

e40

23 

13 

6.7 

4.2 

2.9

e2.2 

e2.4 

2.6 

2.2

eSO

3.8 

6.0 

e3.2 

e2.4 

2.5

2.0 

2.0 

1.5 

1.9 

el. 9

310

......................................................... 2,860

e Estimated.

s Computed by subdividing day.
YELLOWSTONE RIVER BASIN Continued 

KELLETT DRAIN NEAR PAVILLION, WYO. Continu

Particle-size analyses of suspended sediment, March to Aug

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette* 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Aug. 22 .................

Time

2:35 p. m. 

2:45 p. m. 

7:40 p.m. 

12:35 p. m.

Discharge 

(secondfset)

aO.4 

1.1 

20 

3.1

Suspended sedi

Concentration 

of sample 

(ppm)

1,370 

1,870 

23,800 

10,200

Concentration 

of suspension 

analyzed 

(ppm)

1,070 

1,140 

7,810 

2,810

0.002

41 

51

0.004

53 

65 

39 

20

Percent finer 

0.008

60 

86

0.016

78 

96 

60 

31

0

a Mean daily discharge.
110 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

DEWEY DRAIN NEAR PAVILLION, WYO.

LOCATION. At gaging station, 0.1 mile upstream from mouth, 12J miles nor^h of Riverton,

and 13J miles southeast of Pavillion, Fremont County.

RECORDS AVAILABLE. Sediment records: December 1948 to September 1950 (discontinued). 

EXTREMES, 1949-50.--Sediment concentrations: Maximum daily, 629 ppm July 25; minimum

daily, not determined. 

Sediment loads: Maximum daily, 8.2 tons July 25; minimum daily, less than 0.01 ton on

many days. 

EXTREMES, 1948-50. Sediment concentrations: Maximum daily, 4,320 ppm Jure 2, 1949;

minimum dsily, not determined. 

Sediment loads: Maximum daily, 10 tons June 23, 1949; minimum daily, less than 0.01 ton

on many days each year. 

REMARKS. Records of discharge for water year October 1949 to September If50 given in

Water-Supply Paper 1176.

Monthly and annual summary of water and suspended-sediment discharge, water year October 1949 to September 1950

Month

Calendar year 1949. . .

May

September ............

Water year 1949-50 . .

Discharge 

(secondfoot-days)

11.9 

8.8 

6.9

181.3

5.4 

4.7 

5.6

3.7 

3.6 

14.7 

38.5 

44.2 

29.3

177.3

Runoff 

(acre-feet)

24 

17 

14

359.7

11 

9.3 

11

7.3 

7.1 

29 

76 

88 

58

352

Suspended sediment

Load 

(tons)

1.8 

3.3 

1.0

140

1.9 

1.2 

1.0

.5 

.4 

1.6 

15 

13 

3.4

44

Daily load (tons)

Mean

0.06

.1 

.03

.38

.06 

.04 

.03

.02 

.01 

.05 

.48 

.4 

.1

0.12

Maximum

0.19 

.46 

.06

10

.12 

.08 

.05

.03 

.07 

.18 

8.2 

1.1 

.50

8.2

Minimum

0.03 

.04 

.02

(t)

(t) 

(t) 

.02

(t) 

(t) 

(t) 

.05 

.04 

.02

(t)

Concentration (ppm)

Weighted 

mean

56 

139 

54

--

130 

95 

66

50 

41 

40 

144 

109 

43

-

Maximum 

daily

-

4,320

629

629

t Sediment discharge less than 0.01 ton.
YELLOWSTONE RIVER BASIN 111

YELLOWSTONE RIVER BASIN Continued 

FIVEMILE 76 DRAIN NEAR RIVERTON, WYO.

LOCATION. At gaging station, 200 feet upstream from mouth and 12J miles north of Riverton,

Fremont County.

RECORDS AVAILABLE. Sediment records: March 1949 to September 1950 (discontinued) 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, not determined; minimuir daily

not determined. 

Sediment loads: Maximum daily, 6.0 tons, estimated, July 25; minimum daily, less than

0.01 ton May 24 to June 2. 

EXTREMES, March 1949 to September 1950. Sediment concentrations: Maximum daily 4,100

ppm.June 21, 1949; minimum daily, not determined. 

Sediment loads: Maximum daily, 8.86 tons June 21, 1949; minimum daily, less than 0.01

ton on many days each year. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in

Water-Supply Paper 1176.

Monthly and annual summary of water and suspended-sediment discharge, water year October 1949 to September 1950

Month

July .............

September ........

Water year 1949-50

Discharge 

(secondfoot-days)

11.2 

12.6 

7.1 

5.5 

5.8 

6.1

6.0 

6.2 

14.2 

18.6 

17.9 

18.0

129.2

Runoff 

(acre -feet)

22 

25 

14 

U 

12 

12

12 

12 

28 

37 

36 

36

257

Suspended sediment

Load 

(tons)

3.2 

3.6 

4.5 

4.0 

6.4 

13

4.4 

1.7 

14 

16 

5.9 

7.6

84.3

Daily load (tons)

Mean

0.1 

.1 

.1 

.1 

.2 

.4

.1

.05 

.5 

.5 

.2 

.3

.2

Maximum

0.24 

.22 

.54 

.25 

e.39 

.66

e.49 

.14 

e5.0 

e6.0 

.44 

e2.0

6.0

Minimum

0.03 

.05 

.03 

.07 

.07 

.13

.02 

(t) 

(t) 

.03 

.02 

.2

(t)

Concentration (ppm)

Weighted 

mean

106 

106 

235 

269 

409 

789

272 

102 

365 

319 

122 

156

--

I'-'ximum 

daily

e Estimated.

t Sediment discharge less than 0.01 ton.
112 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

SAND GULCH DRAIN AND WASTEWAY NEAR RIVERTON, WYO.

LOCATION. At gaging station, a quarter of a mile upstream from mouth and 12J miles

north of Riverton, Fremont County.

RECORDS AVAILABLE. Sediment records: March 1949 to September 1950 (discontinued). 

EXTREMES, 1949-50. Sediment concentrations: Maximum observed, 12,400 ppm July 25; 

minimum daily, no flow on many days.

Sediment loads: Maximum daily, 293 tons July 25; minimum daily, 0 tons- on many days. 

EXTREMES, March 1949 to September 1950. Sediment concentrations: Maximrm observed, 

12,400 ppm July 25, 1950; maximum daily, 8;000 ppm Aug. 10, 1949; minimum daily, no 

flow on many days each year.

Sediment loads: Maximum daily, 293 tons July 25, 1950; minimum daily, 0 tons on many 

days each year.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in 

Water-Supply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

19

20 ----- - 

21 

22 ------ 

23 ------

24 

25 

26 ------

27 

28 ----- - 

29 ------

30 

31 

TotalOctober

Mean

charge 

(secondfeet)

2.2 

.2 

.1 

.1 

.1

.2 

.2 

.2 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

5.5

Suspended sediment

Mean 

concentration 

(ppm)

84 

100 

140

240

200 

140

260

480 

510

180 

270

--

Tons 

per 

day

eO.4 

(t)

.1 

.2 

e.2

 (t)

e.2 

e.l 

(t) 

(t) 

.1 

.1

 (t)

3

November

Mean 

discharge 

( second - 

feet)

0.1 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.4 

.2

.1 

.2 

.3 

.3 

.2

.3 

.3 

.3 

.3 

.3 

.2 '.2 

.1 

.1 

.2

.2 

.2 

.2 

.2 

.2

6.5

Suspended sediment

Mean 

concentration 

(ppm)

250 

380

280 

270

280 

520

600 

88

Tuns 

per 

day

. eO.2

)"

6

December

Mean

charge 

(secondfeet)

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.1 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

2.1

Suspended sediment

Mean 

concentration 

(ppm)

620

170 

110

--

Tons 

per 

day

eO.3

1"

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

2

e Estimated.

t Less than 0.1 ton.
YELLOWSTONE RIVER BASIN 113

YELLOWSTONE RIVER BASIN Continued 

SAND GULCH DRAIN AND WASTEWAY NEAR RIVERTON, WYO. Continued

Suspended sediment, water year October 1949 to September 1950 Continued

Day

2

o

g

12

21

22

24

QC

QQ

Total1 

2

D

15 

18

19 -

20

99

23 

24 ------ 

25 ------ 

26 ------ 

27 

28 ------ 

29 ------ 

30 

SI ......

TotalJanuary

Mean

charge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

0

April

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

3.0

75 

150

170

140 

96 

60

60 

56

47

60 

60

22

--

' (t)

(t) 

' (t)

0.7

February

Mean

charge 

(second - 

feet)

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

.1

0.1

Suspended sediment

Mean 

concentration 

(ppm)

3,600

Tons 

per

day

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 

1.0

1.0

May

0.1 

.1

.1 

.1 

.5 

.3 

.6 

.1 

.1 

.4

.2 

.2 

.6 

.6 

.5

.5 

.5 

.6 

.6 

.9

1.8 

.2 

.1 

.1 

.6 

1.5

12.8

45 

48

90

360 

220 

106 

40 

14 

120

20 

40 

62 

35

21

22 

82

170 

50 

12 

6

155

-

(t)

so.e

.2 

.2 (t) (t) .1

(t) (t)

.1

(t)

.2 

.8 }"

e.l 

.6

3.4

March

Mean

charge 

(secondfeet)

0.1 

.2 

.2 

.2 

.2

.2 

.1 

0 

0 

0

0 

0 

0 

0 

0

0 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

2.7

Suspended sediment

Mean 

concentration 

(ppm)

4,030 

5,370

223

640

665 

470 

370 

280

290

300 

305 

180

Ton^ 

per 

da)

l.l 

2.9 

el.O 

el.O 

e.4

.1 

e.l 

0 

0 

0

0 

0 

0 

0 

0

0 

.2 

e.2 

e.l 

(t) 

.2 

.1 

.1

(t)

6.3

June

1.1 

.6 

1.4 

1.3 

2.0

1.9 

3 2 

5.2 

3.8 

3.6 

5.7 

4.5 

3.4 

2.6 

1.4

2.5 

4.5 

7.0 

6.3 

2.1

1.7 

1.3 

1.4 

1.5 

1.9

1.9 

2.4 

3.9 

2.8 

4.2

87.5

175 

670

295

455 

305

250

235 

468 

430

250 

260 

450

110

270 

230 

190

0.5 

1.4 

el. 5 

e.9 

1.6

el. 2 

e5.0 

6.4 

3.1 

e2.« 

e4.0 

3.0 

e2.2 

1.6 

1.8

2.9 

e5.0 

e8.5 

e7.5 

e2.0

1.1 

.9 

1.7 

el. 3 

e.9

.6 

el. 5 

2.8 

1.7 

2.2

77.4

e Estimated.

s Computed by subdividing day.

t Less than 0.1 ton.
MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

SAND GULCH DRAIN AND WASTEWAY NEAR RIVERTON, WYO. Continued 

Suspended sediment, water year October 1949 to Septemfler 1950--Continue*1

Day

19

1ft

22

40

25

27

4Q

31 

TotalJuly

Mean

charge 

(secondfeet)

18 

17 

16 

9.3 

9.9

8 

6.1 

5.7 

3.6 

2.5

1.9 

3.8 

3 

3.5 

4.2

2 3 

3.0 

2.0 

2.3 

5.2

8.2 

6.6 

9.3 

7.0 

15

3.5 

5 

6 

5 

3 

2.5

198.4

Suspended sediment

Mean 

concentration 

(ppm)

260

350 

320

260

220 

240 

290

360

845 

380 

240

260 

3,200

1,800 

350

260

Tons 

per 

day

e26 

e20 

elS 

elO 

6.9

7.6 

5.3 

e4.4 

e2.6 

1.8

el. 2 

2.3 

2.0 

2.7 

e3.8 

e2.2 

2.9 

el. 9 

5.2 

5.3

5.3 

e4.4 

e7.0 

4.9 

S293 

17 

4.7 

5.5 

e3.6 

e2.2 

1.9

479

August

Mean 

discharge 

(second - 

feet)

4 

2.5 

1.5 

1 

1.4

1.8 

2 

1 

1.2 

1.8

2 

2.5 

.7 

1 

1.4

1 

.9 

1 

2 

5.5

5.5 

5 

4.5 

4 

3.5

3.5 

3 

2.5 

2.5 

2 

.9

73.1

Suspended sediment

Mean 

concentration 

(ppm)

160 

140 

160

250

960 

980

460

300

48 

200 

290

66 

140

470 

900

-

Tons 

per 

day

e3.2 

1.1

.6 

.4 

e.7

el.O 

1.4 

el. 4 

3.1 

4.8

2.5 

e2.4 

e.5 

.8 

e2.0 

.1 

.5 

.8 

e3.6 

e4.6 

e4.6 

e2.0 

.8 

e.8 

1.3

el. 8 

e2.2 

3.2 

e2.4 

1.9 

2.2

58.7

September

Mean 

discharge 

(secondfeet)

1.4 

1.8 

2.5 

3.5 

4

1.3 

1.3 

1.4 

1.8 

2

1.8 

1.8 

1.6 

1.8 

1.8

1.7 

2 

2.5 

2 

1.5 

.2 

.2 

.2 

.2 

.2 

.2 

.2 

.2 

.2 

.2

41.5

Suspended sediment

Mean 

concentration 

(ppm)

520

92 

100

74

56

46 

52

150

360 

420

280

280 

220 

280

-

Tons 

per 

day

2.0 

el. 6 

el. 2 

.9 

e.6

.4 

e.3 

e.4 

.4 

e.5

.3 

e.3 

.2 

.3 

e.3

.2

.5 

.0 

.7 

.4

e.2

14.5

Total discharge for year (second-foot-days) ...................................................... 433.2

Total load for year (tons) ...........................................'............................ 654

e Estimated.

s Computed by subdividing day.
YELLOWSTONE RIVER BASIN 115

YELLOWSTONE RIVER BASIN Continued 

LOST WELLS BUTTE DRAIN NEAR RIVERTON, WYO.

LOCATION. At gaging station, 0.1 mile upstream from mouth and llf miles north of Riverton,

Fremont County.

RECORDS AVAILABLE. Sediment records: March 1949 to September 1950 (discontinued). 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 6,050 ppm July 25; minimum

daily, no flow on many days.

Sediment loads: Maximum daily, 943 tons July 25; minimum daily, 0 tons on many da-s. 

EXTREMES, March 1949 to September 1950. Sediment concentrations: Maximum daily,

6,400 ppm June 3, 1949; minimum daily, no flow on many days each year. 

Sediment loads: Maximum daily, 943 tons July 25, 1950; minimum daily, 0 tons on miny

days each year. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in

Water-Supply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

1 Q

i n

19 ......

20 

21- 

22- 

23- 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

discharge 

(secondfeet)

5.6 

4.0 

7.0 

3.7 

1.3

.2 

.5 

.8 

.8 

.4

.1 

.1

.0 

.0 

.0

.0 

.0 

.0 

.1 

.8

3.2 

3.4 

3.2 

2.2 

1.2

1.1 

1.0 

1.0 

1.0 

1.0 

1.1

59.8

Suspended sediment

Mean 

concentration 

(ppm)

62

265 

154

60 

93

88

45 

82

40 

42

--

Tons 

per 

day

0.9 

e.3 

s7.2 

1.5 

e.3

.2 

.4 

e.5 

e.5

e.2

.4

el. 2 

e.8 

e.5 

e.3

e.l

18

November

Mean

charge 

(secondfeet)

1.0 

1.0 

1.0 

1.2 

1.4

1.5 

2.1 

1.0 

1.0 

.8

.8 

.8 

1.0 

1.0 

.6

1.6 

1.8 

1.9 

1.0 

1.9

2.2 

1.6

.7 

.8 

.8

.7 

.6 

.6 

.7 

.6

33.9

Suspended sediment

Mean 

concentration 

(ppm)

18 

21

69 

73

71 

77 

72

118 

122

"

Tons 

per 

day

(t)

eO.2

.4 

e.5

e.2

7

December

Mean

charge 

(secondfeet)

3.7 

1.4 

1.4 

1.4 

1.4

1.4 

.5 

.2

0 

0

0 

0 

0 

0 

0 

0

12.9

Suspended sedin-ent

Mean 

concentration 

(ppm)

87

62

45

82

4

Tens 

pe.~ 

dar0.9 

e.3

W

0 

0

0 

0 

0 

0 

0 

0

3

e Estimated.

8 Computed by subdividing day.

t Less than 0.1 ton.
116 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN--Continued

LOST WELLS BUTTE DRAIN NEAR RIVERTON, WYO. Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

2

.

12

91

nq

25

9A

no

29

Total -

2

j

O

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalJanuary

Mean

charge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(ppm)

~

Tons 

per 

day

0

April

0.3 

.3 

.3 

.3 

.3 

.3 

.2 

.2 

.1 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

0 

0

2.4

66 

82 (t)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0.6

February

Mean

charge 

(secondfeet)

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 

.1

0.5

Suspended sediment

Mean 

concentration 

(ppm)

68

Tons 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

K0.1

Ma;

0 

0 

.2 

.2 

.1 

0 

.2 

1.8 

3.2 

1.0

1.1 

3.9 

4.7 

5.8 

8.1

14 

12 

11 

8.9 

9.8

6.6 

7.4 

5.2 

4.2 

5.3

4.7 

2.9 

2.5 

2.3 

1.5 

2.8

131.4

375

82

40 

910

1,330

1,370 

930 

540 

390

628 

322 

158 

162

210

135

160

0 

0

(t)

0

(t)

S3. 8 

e2.0 

.2

.1 

s!2 

e!6 

e22 

29

52 

30 

16 

9.4 

e!3

ell 

13 

s5.5 

1.8 

2.3

2.7 

el.l 

e.7 

.8 

.6 

el. 7

247

March

Mean

charge 

(secondfeet)

0 

0 

0 

.1 

.1

.1 

.1 

.1 

.1 

.2

.2 

.2 

.3 

.3 

.3

.3

.4 

.4 

.4 

.4

.4 

.4 

.4 

.3 

.3 

.2 

.2 

.2 

.2 

.2 

.2

7.0

Suspended sediment

Mean 

concentration 

(ppm)

182

281 

230

Tons 

per 

day

0 

0 

0

(t)

e.2

' e.l

4

June

6.0 

6.6 

6.4 

7.9 

9.8 

13 

17 

19 

15 

13

12 

9.6 

9.8 

7.9

11 

10 

9.6 

9.8 

10

11

13 

15 

16 

17

13 

11 

12 

12 

11

346.4

366 

548

528 

820 

1,080 

902 

756

596 

680 

484 

840

886

460 

610

530 

900 

824

657 

678 

676 

808 

880

~

5.9 

9.8 

e7.5 

elO 

14 

29 

50 

46 

31 

e24 

e20 

15 

18 

10 

27

26 

e22 

e!4 

12 

16 

16 

32 

33 

e32 

e36

23 

20 

22 

26 

26

673

e Estimated.

s Computed by subdividing day.

t Less than 0.1 ton.
YELLOWSTONK RIVER BASIN 117

YELLOWSTONK RIVER BASIN Continued

LOST WELLS BUTTE DRAIN NEAR RIVERTON, WYO.--Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

o

g

1ft

on

9«

i)A

25

no

TotalJuly j

Mean 

discharge 

(secondfeet)

9.6 

11 

10 

11 

12

16 

22 

18 

17 

16

8.1 

9.4 

11 

9.4 

9.8

9.8 

10 

10 

12 

14

14 

13 

18 

18

25

20 

20 

19 

22 

18 

14

447.1

Suspended sediment

Mean 

concentration 

(ppm)

860

1,180

1,110 

1,310

890

420 

420 

580 

475

525 

530 

480 

680

3,400 

6,050

3,700 

3,620 

2,510

1,290

Tons 

per 

day

e22 

e28 

23 

e30 

38

48 

78 

eSO 

e44 

38

9.2 

11 

17 

12 

e!3

e!4 

14 

14 

16 

26

e20 

e20 

e60 

165 

3943 

200 

196 

129 

elSO 

e90 

49

2,570

Total discharge for year (second-foot-day 

Total load for year (tons) ...............

August

Mean

charge 

(secondfeet)

17 

15 

15 

14 

15

16 

17 

14 

15 

17

16 

16 

16 

17 

16

17 

18 

17 

17 

17

17 

18 

14 

12 

11

11 

8.9 

7.5 

6.4 

6.4 

5.8

440.0

Suspended sediment

Mean 

concentration 

(ppm)

2,120 

2,450 

1,390 

910

1,910 

1,400 

1,130

1,120

950 

820

1,380 

860 

1,140

500 

510 

370 

490 

230

200 

200 

110 

250

--

Tons 

per 

day

97 

99 

56 

34

e40

e50 

e70 

72 

57 

52

48 

e48 

e46 

44 

35

63 

42 

52 

e32 

e24

23 

25 

14 

16 

6.8

e5.5 

e4.6 

4.0 

3.5 

1.9 

3.9

1,170

September

Mean 

discharge 

(secondfeet)

6.6 

5.6 

5.4 

5.6 

10

13 

15 

16 

17 

18

18 

18 

13 

13 

13 

11 

9 

9.4 

8.8 

11 

2.5 

2.1 

2.1 

1.9 

1.8

1.6 

1.5 

1.5 

1.9 

1.8

255.1

Suspended sedin ent

Mean 

concentration 

(ppm)

640

490 

420

1,300 

1,410

1,440 

1,100 

380 

390 

220

130 

110

70 

45

18

25 

12 

7 

20 

14

Tons 

per 

day

11

e6.0 

e2.2 

e2.4 

13

15 

e24 

e42 

60 

69

70 

53 

13 

14

7.7

e4.8 

e3.4 

3.3 

2.6 

e!3

.5 

.3 

e.2 

e.l 

(C 

.1 (t,v 

tt 

.1 

(C

431

3) ..................................................... 1 , T36 . 5

........................................................ 5, 120

e Estimated.

a Computed by subdividing day.

t Less than 0.1 ton.
118 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN -Continued 

COLEMAN DRAIN NEAR SHOSHONI, WYO.

LOCATION. At gaging station, 0.1 mile upstream from mouth and Hi miles southwest of

Shosboni, Fremont County.

RECORDS AVAILABLE. Sediment records: December 1948 to September 1950 (discontinued). 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 4,510 ppm June 13; minimum

daily, not determined. 

Sediment loads: Maximum daily, 290 tons July 25; minimum daily, less than 1 ton on

many days. 

EXTREMES, 1948-50. Sediment concentrations: Maximum daily, 4,510 ppm June 13, 1950;

minimum daily, not determined. 

Sediment loads: Maximum daily, 290 tons July 25, 1950; minimum daily, less than 1 ton

on many days each year. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in

Water-Supply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

1 

2 ------

3 

4 ......

5 .-. 

6 

7 . ...

9 ----- -

10 ------

H ... 

12 

13 

14 ......

15 

16 

17 

18 .-_ 

19 ----- - 

20 

21 

22------ 

23 

24 

25 

26 

27 ----- - 

28 

29 

30 

31 

TotalOctober

Mean

discharge 

(secondfeet)

7.8 

7.4 

6.6 

6.3 

5.9

5.9 

6.3 

7.0 

7.0 

6.3

5.9 

5.6 

5.6 

5.6 

5.9

6.3 

6.3 

5.9 

5.9 

5.9

5.9 

5.9 

5.9 

5.9 

5.9 

5.6 

5.3 

4.8 

4.2 

4.2 

4.5

183.5

Suspended sediment

Mean 

concentration 

(ppm)

260 

220 

169 

137 

197

190 

246

214

208 

190 

158 

129

126 

138 

150 

165

178

166 

168 

170 

173 

181

168

"

Tons 

per 

day

5.5 

4.4 

3.0 

2 3 

3.1

3.0 

4.2 

e5.0 

e5.0 

3.6 

3.4 

2.9 

2.4 

2.0 

e2.0

e2.0 

2.1 

2.2 

2.4 

2.6

2.8 

e3.0 

e3.0 

2.6 

2.6 

2.6 

2.4 

2.3 

e2.0 

e2.0 

2.0

90

November

Mean 

discharge 

(secondfeet)

4.2 

4.2 

4.2 

3.9 

4.1

4.2

4.5 

4.8 

4.5 

4.5

4.2 

4.2 

4.2 

4.2 

4.2

3.9 

3.9 

3.9 

3.9 

3.7

3.4 

3.1 

3.1 

3.1 

3.4 

3.4 

3.1 

3.0 

3.0 

3.1

115.1

Suspended sediment

Mean 

concentration 

(ppm)

168 

168 

167 

161 

185

189 

172 

162 

160

218

187 

191

198 

205 

210

205 

201 

200

249 

230 

214

--

Tons 

per 

day

1.9 

1.9 

1.9 

1.7 

2.0

2.1 

2.1

2.2 

1.9 

e2.0

2.5 

e2.0 

e2.0 

2.1 

2.2

2.1 

2.2 

2.2 

e2.0 

e2.0

1.9 

e2.0 

1.7 

e2.0 

1.8 

e2.0 

e2.0 

2.0 

1.9 

1.8

60

December

Mean

discharge 

(second - 

feet)

3.1 

3.1 

3.0 

3.1 

3.1

3.0 

2.8 

2.8 

2.8 

2. 8

2.8 

2.7 

2.6 

2.6 

2.7

2.8 

2.9 

2.9 

2.9 

3.0

3.0 

3.0 

3.0 

3.0 

2.9

2.9 

2.8 

2.8 

2.8 

2.9 

2.9

89. b

Suspended sediment

Mean 

concentration 

(ppm)

208 

206

172

166 

145 

120

274

220

220

210 

127

128

154 

138 

122

--

Tons 

per

day

I e2.0 

el.O

e2.0 

el.O

47
YELLOWSTONE RIVER BASIN 

YELLOWSTONE RIVER BASIN Continued 

COLEMAN DRAIN NEAR SHOSHONI, WYO. Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

119

Day

Q

18

23

24

ne

no

31 

Total13

18

21 

22 

23 

24 

25 

26 

27 

28 

29 

so 

31 

TotalJanuary

Mean

charge 

(secondfeet)

2.8 

2.8 

2.8 

2.8 

2.8

2.6 

2.6 

2.7 

2.8 

2.6

2.2 

2.2 

2.2 

2.2 

2.2

2.2 

2.0 

1.9 

1.9 

1.9

1.9 

2.0 

2.0 

2.0 

1.9

1.8 

1.6 

1.6 

1.6 

1.6 

1.6

67.8

1.8 

1.8 

1.8 

1.8 

1.9 

2.0 

2.2 

2.2 

2.3 

1.9 

1.8 

1.8 

1.8 

2.0 

2.0 

2.0 

2.0 

1.8 

1.8 

1.8

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.9 

2.2

56.2

Suspended sediment

Mean 

concentration 

(ppm)

208

470 

342

311

260 

244

235 

400

287 

268 

247 

224 

201

264

259 

378

Tons 

per 

day

el.O 

1.6 

e3.0 

3.6 

2.6

e2.0 

el.O

50

April

90 

151

131 

90

80

71 

70

60

78 

68

53 

48 

160

-

(t)

14

February

Mean

charge 

(secondfeet)

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

.6 

.6 

.5 

.5

.5 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

1.7 

2.2 

2.3

2.3 

3.3 

2.2

48.9

Suspended sediment

Mean 

concentration 

(ppm)

251 

228

291 

134

108 

100

173 

150

189 

107

Tons 

per 

day

1.0

(t)

s2.1 

(t)

22

May

2.3 

2.3 

2.5 

2.3 

2.3

2.3 

2.5 

2.8 

2.5 

2.3 

2.3 

2.3 

2.5 

2.3 

2.3 

2.6 

3.8 

3.8 

4.0 

4.2

4.2 

4.4 

4.9 

6.0 

5.2

4.8 

4.5 

4.3 

4.2 

5.8 

5.1

107.6

68

176 

460 

317 

244 

169

139 

208 

3,010 

3,950 

3,460

2,510 

620 

235 

285 

610 

910

-

(t)

si. 5 

4.7 

3.3 

2.6 

1.9

1.6 

2.5 

s46 

64 

49

33 

7.5 

2.7 

3.2 

9.5 

13

253

March

Mean

charge 

(second - 

feet)

1.9 

2.0 

1.9 

1.7 

1.9

2.0 

1.9 

1.8 

1.7 

1.7

1.7 

1.6 

1.6 

1.6 

1.8

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.8 

1.8 

1.8 

1.8

55.6

Suspended sedionnt

Mean 

concentration 

(ppm)

260

338

229 

125

110 

109

90

76 

49 

55 

64

80

238 

120 

75

Ton,'' 

per 

day

I el.O 

1.6

(t)

el.O 

si. 2 

(t) 

(t)

28

June

8.6 

11 

9.7 

6.5 

5.6

5.3 

6.0 

6.7 

6.0 

4.7 

5.8 

6.0 

8.8 

11 

10

13 

16 

16 

19 

15

14 

14 

14 

13 

13 

13 

13 

17 

17 

18

336.7

3,510 

1,990 

1,280 

1,010 

820 

600 

959 

983 

1,850 

3,820 

2,270 

2,290 

4,510 

4,100 

2,040 

2,420 

2,200 

1,990 

1,600 

2,120

1,720 

1,510 

2,030 

1,770 

2,490

2,530 

2,930 

2,410 

3,900 

3,050

81 

59 

34 

18 

12

8.6 

s!5 

s21 

s20 

s45 

36 

37 

107 

122 

55

85 

95 

86 

82 

S78

s69 

57 

77 

62 

87

89 

103 

110 

179 

S156

2,090

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.

336665 O - 55 - 9
120 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN -Continued

COLEMAN DRAIN NEAR SHOSHONI, WYO. Continued

Day

2

1ft

91

99

O4

24

28

TotalJuly

Mean 

discharge 

(secondfeet)

18 

20 

19 

20 

20

19 

20 

19 

18 

18

17 

18 

17 

16 

19

21 

21 

22 

20 

18 

20 

23 

23 

25 

28

20 

18 

20 

21 

21 

20

619

Suspended sediment

Mean 

concentration 

(ppm)

1,700 

2,000

2,100

1,800 

1,700 

1,800

3,000

1,150

2,130 

2,170 

1,880 

2,000

1,930 

2,000 

2,000 

2,100

2,800 

1,620

} :

Tons 

per 

day

83 

108 

e!30 

elOO 

113

92 

92 

92 

e80 

146

e75

50 

e90

ellO 

121 

129 

102 

97

104 

124 

124 

142 

e290

151 

79 

e!20

ellO

3,420

Total discharge for year (second -foot -day: 

Total load for year (tons) ...............

August

Mean

charge 

(secondfeet)

20 

19 

20 

18 

19

19 

18 

16 

18 

19 

19 

20 

20 

20 

19

18 

18 

19 

19 

19

21 

19 

1« 

17 

16

15 

15 

14 

14 

13 

13

552

Suspended sediment

Mean 

concentration 

(ppm)

1,200 

1,700 

1,900 

1,800

400 

480

Tons 

per 

day

e85

62 

92 

103 

97

e80

e30

e20

14 

17

2,000

September

Mean

charge 

(secondfeet)

12 

12 

8.9 

7.4 

7.4

7.4 

6.6 

12 

16 

19

18 

13 

8.9 

8.9 

11

10 

9.2 

12 

11 

16

8.9 

8.1 

7.8 

7.0 

7.0

7.0 

6.6 

6.6 

7.4 

7.0

300. 1

Suspended sediment

Mean 

concentration 

(ppm)

} "

} _=

230 

240

260 

220 

170 

170 

160

150 

200 

210 

190 

180

Tons 

per 

day

elO 

e7. 0

elO 

e34

e!4 

eS.O

7.5 

7.1 

e50

6.2 

4.8 

3.6 

3.2 

3.0

2.8 

3.6 

3.7 

3.8 

3.4

314

5) ...................................................... 2, 532. 0

........................................................ 8, 390
YELLOWSTONE RIVER BASIN Continued 

COLEMAN DRAIN NEAR SHOSHONI, WYO.--Continu

Particle-size analyses of suspended sediment, May to July 

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanicall

Date of collection

July 5 ...................

Time

5:25 p.m. 

6:35 p. m. 

9:00 a. m. 

6:20 a.m. 

8:30 a.m.

Discharge 

(secondfeet)

5.8 

3.8 

20 

19 

24

Suspended sed

Concentration 

of sample 

(ppm)

6,880 

4,240 

3,300 

2,300 

1,660

Concentration 

of suspension 

analyzed 

(ppm)

3,500 

2,940 

5,120 

1,400 

921

Percent finer 

0.002 0.004

56 

51 

47 

39 

42

0.008 0.016

81 

74 

68 

56 

57

0
MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

SAND GULCH NEAR SHOSHONI, WYO.

LOCATION. At gaging station, half a mile upstream from mouth and 10i miles southwest

of Shoshoni, Fremont County.

RECORDS AVAILABLE. Sediment records: September 1948 to September 1950 (discontinued). 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 5,930 ppm May 6; minimum

daily, not determined.

Sediment loads: Maximum daily, 1,410 tons June 2; minimum daily, not determined. 

EXTREMES, 1948-50. Sediment concentrations: Maximum daily, 5,930 ppm May 6, 1950;

minimum daily, not determined.

Sediment loads: Maximum daily, 1,410 tons June 2, 1950; minimum daily, not determined. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in

Water-Supply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

2

21 

22 - 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

charge 

(secondfeet)

31 

15 

13 

12 

12

12 

13 

13 

13 

12 

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

10 

9.6 

9.6

9.6 

9.1 

9.1 

9.1 

9.1 

8.6

361.8

Suspended sediment

Mean 

concentration 

(ppm)

58 

108

120 

110 

91

L32 

145 

160

128

137 

120

108

-

Tons 

per 

day

e32 

2

) - 

I"

e4

5 

e5 

e4 

3 

e3

4 

e3

130

November

Mean

charge 

(secondfeet)

8.1 

8.6 

8.6 

8.6 

8.6

8.6 

8.6 

8.6 

8.6 

8.6 

8.1 

8.1 

8.1 

8.1 

7.7

7.7 

7.7 

8.1 

8.1 

7.2

8.1 

8.1 

8.1 

7.7 

7.7

7.7 

7.7 

7.2 

7.2 

7.2

241.1-

Suspended sediment

Mean 

concentration 

(ppm)

96 

100

124 

155 

155

104

105 

120

150 

102

79 

132

Tons 

per 

day

1 -

e3 

3 

e3 

4 

e4 

3 

e3 

e3

e2 

e3

e2 

3

77

E ecember

Mean

charge 

(secondfeet)

7.2 

7.2 

7.0 

6.9 

6.6

6.4 

6.0 

5.8 

5.6 

5.4 

5.0 

4.8 

4.7 

4.7 

4.8

4.9 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

5.-0 

5.0 

5.0

5.2 

5.2 

5.2 

5.2 

5.3 

5.4

169.5

Suspended sediment

Mean 

concentration 

(ppm)

122

259 

139 

92

107 

88

130

138

120 

130

193 

185 

230

Tons 

per 

day

e2 

2 

e2 

e4 

5

e4 

2 

e2

el

e2 

e3

68
YELLCWSTONE RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

SAND GDLCH NEAR SHOSHONI, WYO^ Continued

Suspended sediment, water year October 1949 to September 1950 Continued

Day

g

7... 

10 

19- 

9 ft

23

94

AC

Oft

no

31 

Totalg

20-, 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

January

Mean

charge 

(secondfset)

5.4 

5.2 

5.0 

4.5 

4.1

4.3 

4.6 

4.8 

5.4 

5.6 

5.8 

6.0 

6.0 

6.0 

6.0

6.0 

6.0 

6.0 

6.5 

7.1 

7.0 

6.7 

5.8 

5.3 

4.2

4.0 

3.6 

3.4 

3.2 

3.0 

2.8

159.3

5.3 

5.3 

5.0 

4.8 

5.0

4.8 

5.0 

4.8 

5.0 

5.0

4.5 

4.2 

4.0 

4.0 

3.8 

3.8 

3.8 

4.0 

4.0 

4.0

4.0 

4.0 

4.0 

4.0 

4.0 

4.0 

4.0 

4.8 

4.5 

4.5

131.9

Suspended sediment

Mean 

concentration 

(ppm)

180 

162

125

138 

152 

372

408 

390 

360

430

392

440

-

April

\ 232

260

240 

220

200 

160

140

140 

115

130 

112 

118 

112 

145 

288 

140

-

Tons 

per 

day

e3 

3 

e2 

2 

e2

1

el

e2 

e6

7 

e6 

6

e7

e4 

e3

130

3

4

e3 

e2

el

2 

3 

2

59

February

Mean

charge 

(secondfeet)

2.8 

2.7 

2.7 

2.7 

2.9

3.3 

3.5 

3.6 

3.7 

3.7

3.8 

4.0 

4.2 

4.5

4.5

4.5 

4.5 

4.5 

4.5 

4.5

4.5 

4.5 

4.5 

5.0 

5.3

5.0 

5.5 

4.8

114.2

Suspended sediment

Mean 

concentration 

(ppm)

340 

410

830 

780

370 

370

480 

612

655 

520

May

4.5 

4.2 

5.3 

4.8 

4.5

35 

51 

57 

42 

18

11

22

36 

39 

34

25 

38 

40 

35 

38

54 

48 

36 

34 

67 

53 

45 

47 

36 

38 

44

1,046.3

125 

100 

146 

145 

122

5,930 

3,350 

3,000 

1,600 

720

460 

842 

1,280 

890 

740 

310 

510 

450 

390 

500

700 

750 

510 

500 

850 

420 

370 

400 

380 

430 

480

Tons 

per 

day

e2

e4

e7 

8

1 "

e4

e5 

6 

8 

e9

e9 

10

7

160

2 

1 

2 

2 

1

s678 

462 

462 

181 

35 

14 

s58 

124 

94 

68 

21 

52 

49 

37 

51

102 

97 

50 

46 

154 

60 

45 

51 

37 

44 

57

3,140

March

Mean

charge 

(secondfeet)

7.4 

7.0 

4.8 

4.8 

5.0

5.0 

5.0 

5.1 

5.1 

5.2

5.2 

5.2 

5.2 

5.4 

7.0

6.2 

5.3 

5.3 

5.8 

5.3

6.3 

6.3 

5.8 

5.8 

5.8

5.8 

6.7 

7.7 

7.7 

7.2 

5.0

180.4

Suspended sediment

Mean 

concentration 

(ppm)

1,260 

1,060

440 

340 

310 

250

245

300 

820 

1,470

530 

530 

550

600

490 

200 

140 

640 

250

Tons 

per 

day

25 

e24 

14 

elO 

e8

6 

5 

4 

3 

3 

e5 

e4 

4 

12 

28

e!7 

elO 

e9 

e9 

8 

9 

9 

e9 

9 

e8

e8 

9 

4 

3 

12 

3

291

June

88 

112 

102 

84 

59

30 

49 

119 

123 

100 

90 

63 

45 

32 

56 

56 

53 

52 

52 

52

54 

60 

53 

53 

60 

62 

62 

62 

62 

58

2,003

3,000 

4,650 

2,920 

1,900 

1,620

740 

858 

2,100 

2,440 

1,320

930 

800 

640 

400 

520

810 

940 

980 

930 

820

560 

820 

720 

590 

880 

880 

630 

580 

410 

380

713 

1,410 

805 

431 

258

60 

5135 

675 

810 

356 

226 

136 

78 

35 

79

122 

135 

138 

131 

115

82 

133 

103 

84 

143 

147 

105 

97 

69 

60

7,870

e Eatimated.

s Computed by subdividing day.
124 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

SAND GULCH NEAR SHOSHONI, WYO. Continued

Suspended sediment, water year October 1949 to September 1950 Continueil

Day

22

OQ

25

9ft

29

31 

TotalJuly

Mean 

discharge 

(secondfeet)

46 

40 

40 

47 

48

46 

53 

60 

52 

58

54 

55 

62 

62 

56

49 

46 

49 

46 

46

47 

51 

53 

57 

67

63 

72 

73 

63 

51 

47

1,659

Suspended sediment

Mean 

concentration 

(ppm)

380 

380 

370 

560 

860

700 

600 

720

780 

670

630 

660

420 

410 

390 

500 

650

680 

820 

730 

690 

850

1,300 

1,850 

1,950 

1,800 

1,900 

1,450

Tons 

per 

day

47 

41 

40 

71 

114

87 

86 

117 

elOO 

122

98 

elQO 

ellO 

105 

100 

56 

51 

52 

62 

81 

86 

113 

104 

106 

Sl95

221 

360 

384 

306 

262 

184

3,960

August

Mean 

discharge 

(second -

feet)

41 

36 

40 

45 

53

58 

53 

48 

53 

67

70 

74 

67 

66 

52

43 

38 

32 

37 

41 

43 

48 

48 

49 

43

46 

43 

43 

41 

41 

40

1,499

Suspended sediment

Mean 

concentration 

(ppm)

930 

850 

800 

780

820 

630 

760 

710 

980

1,080 

900 

630 

880 

500

450 

440 

560 

370 

290

240 

300 

230 

180 

220 

170

Tons 

per 

day

e!30 

90 

92 

97 

112

128 

90 

98 

102

177

204 

180 

114 

157 

70

e55 

e45 

e40 

e45 

50

51 

73 

48 

38 

e34

30 

35 

27 

20 

24 

18

2,470

September

Mean

charge 

(secondfeet)

38 

41 

43 

47 

42

26 

22 

22 

21 

26

39 

60 

48 

24 

16

14 

14 

16 

16 

36

36 

84 

31 

17 

13

12 

11 

11 

11 

11

848

Suspended sediment

Mean

concentration 

(ppm)

210

160

150 

100 

110 

180

580 

340

100 

75 

120 

190

1,660 

560 

110

55

-

Tons 

per 

day

e!5 

23 

e26 

e30 

18

e!3 

9 

6 

6 

13

61 

e!30 

44 

e20 

e9

4 

3 

5 

8 

e300

s!89 

e400 

49 

e7

1 :

1,400

Total discharge for year (second-foot-days)........................................................ 8,413. 5

Total load for year (tons) .......................................... f.............................. 19, 760

e Estimated.

s Computed by subdividing day.
YELLOWSTONE RIVER BASIN Continued 

SAND GULCH NEAR SHOSHONI, WYO. Continued

Particle-size analyses of suspended sediment, September 1949 t

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; 

W, In distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Mar. 1, 1950.......... ..

May 6. ...................

Time

2:55 p.m. 

1:10 p.m. 

7:15 a. m.

Discharge 

(secondfeet)

33 

a7.4 

33

Suspended sedi

Concentration 

of sample 

(ppm)

367 

1,690 

12, 700

Concentration 

of suspension 

analyzed 

(ppm)

248 

1,200 

6,510

Percent finer 

0.002

30

18

0.004

37 

27

0.008

22

46 

37

0.016

32 

59 

49

0

a Mean dally discharge.
126 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

EAGLE DRAIN NEAR SHOSHONI, WYO.

LOCATION. At gaging station, 0.1 mile upstream from mouth and 7 miles w?st of Shoshoni,

Fremont County.

RECORDS AVAILABLE. Sediment records: December 1948 to September 1950 (discontinued). 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 3,960 ppm Aug. 17; minimum

daily, not determined. 

Sediment loads: Maximum daily, 166 tons July 26; minimum daily, less than 1 ton on

many days. 

EXTREMES, 1948-50. Sediment concentrations: Maximum daily, 3,960 ppm Aug. 17, 1950;

minimum daily, not determined. 

Sediment loads: Maximum daily, 219 tons Aug. 9, 1949; minimum daily, less than 1 ton

on many days each year. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in

Water-Supply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

2

12

Ift

1 fl

19 ----- - 

20 ------ 

21 

22 

23 ...... 

24 ------ 

25 ...... 

26 

27 

28 

29 ------ 

30 ----- - 

31 

TotalOctober

Mean 

discharge 

(secondfeet)

6.8 

5.0 

3.3 

3.3 

3.5

3.6 

4.2 

4.2

3.9 

3.6

3.3 

3.3 

3.2 

3.3 

3.3

3.3 

3.3 

3.3 

3.2 

3.2

3.2 

3.2 

3 3 

3.3

3.5

3.5 

3.5 

3.6 

3.6 

3.5 

3.6

111.9

Suspended sediment

Mean 

concentration 

(ppm)

189 

190 

181

154 

205

250 

186 

220

197 

198

428

362

350 

311

270

Tons 

per 

day

eS.O 

e3.0 

1.7 

1.7 

1.7

1.5 

2.3 

e2.4 

e2.2 

2.4 

e2.2 

1.7 

el. 7 

2.0 

el. 9

el. 8 

1.8 

el. 7 

1.7 

e2.6

3.7 

e3.4 

e3.6 

3.2 

e3.2

3.3 

e3.2 

3.0 

e2. 8 

e2.6 

2.6

78

November

Mean 

discharge 

(secondfeet)

3.9 

3.6 

3.6 

3.6 

3.6

3.6 

3 9 

4.2 

3.9 

3.6

3.6 

3.5 

3.5 

3.3 

3.3

3. 3 

3.3 

3 3 

3.' 5 

3.3 

3.3 

3.5 

3.5 

3.9 

3.9

3.8 

3.6 

3.5 

3.3 

3.6

107.3

Suspended sediment

Mean 

concentration 

(ppm)

281 

313

279 

310

369

570

446 

560

238 

400 

410

278 

275

--

Tons 

per 

day

e2. 8 

2.7 

e2.8 

3.0 

e3.0

e2.8 

2.9 

e3.2 

3.3 

e3.2

3.6 

e4.0 

e4. 8 

5.1 

e4.4

4.0 

e4.4 

5.0 

e4.2 

e2.6

2. 1 

e2.4 

3.8 

e4.6 

4.3

e3.6 

e3.0 

2.6 

e2.4 

2.7

100

Drcember

Mean

charge 

(secondfeet)

3.6 

3.6 

3.3 

3.3 

3.3

3.3 

3.3 

3.3 

3.3 

3.2

3.0 

2.6 

2.2 

2.0 

2.0

2.0 

2.0 

2.0 

2.0

2.1

2.0 

1.9 

1.8 

2.0 

2.0

2.1 

2.1 

2.1 

2.2 

2.2 

2.2

78.0

Suspended sediment

Mean | 

concentration 

(ppm)

300 

297

350 

269

183 

228

171

162

130 

170

119

95 

110

Tons 

per 

day

1 e2. 7 

1 e2.8 

el. 3 

e.9

e.7

46

e Estimated.
YELLOWSTONE RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

EAGLE DRAIN NEAR SHOSHONI, WYO. Continued

Suspended sediment, water year October 1949 to September 1950 Continusd

127

Day

1 

2 

3 

4 

5 

6 

7 

------

9 ._,.--_

10 

11 

12 ------

13------ 1Q

14 

15 

16 

17 

Ifi 10------

19___-.-_

20 

91fil------

22------

23 

24 

nefiO------

26------

27------

9ft so------ 

29 

inau~----- 

31 

Total1 

2------

3 ,.--

4 -

5 

6 ......

7 

------

9 ......

10 rr11 r 

12 ......

13 

14 

15 ......

16 .... .-

17 ......

18 

19 ......

20 

21 ...... 

22 .... 

23 

24 ------

25 

26 

27 - 

28 

29 ----- - 

30 ------ 

81 

TotalJanuary

Mean

discharge 

(secondfeet)

2.3 

2.3 

2.5 

2.3 

2.2

2.0 

2.0 

2.1 

2.1 

2.2

2 2 

2! 2 

2.2 

2.2 

2.1

2.1 

2.1 

2.2 

2.2 

2.2

2.2 

2.3 

2.6 

2.6 

2.3 

2.3 

2.3 

2.3 

2.3 

2.3 

2.2

69.4

2.9 

2.9 

2.9 

2.8 

2.8

2.9 

2.9 

3.0 

3.3 

3.3 

2.9 

2.9 

2.9 

3.0 

3. 1

3.1 

3.2 

3.0 

3.0 

3.0

3.0 

3.0 

3.0 

2.8 

2.8

2.8 

2.6 

2.8 

2.5 

2.5

87.6

Suspended sediment

Mean 

concentration 

(ppm)

209 

249

196

176 

92 

103

98 

72 

82

146 

162

326 

357

AprU

160

150 

110 

105

88 

92

88 

68 

110

Tons 

per 

day

el. 2

e.5

el.O 

e2. 1

35

el. 7 

el. 1

e.7

30

February

Mean

discharge 

(secondfeet)

2.0 

1.9 

1.8 

1.8 

1.8

1.9 

1.8 

1.8 

1.8 

1.9

2.0 

2.0 

2.0 

2.0 

2.0

2.1 

2.2 

2.3 

2.3 

2.5

2.5 

2.6 

2.8 

2.8 

2.9

2.9 

3.0 

2.5

61.9

Suspended sediment

Mean 

concentration 

(ppm)

316 

339

279 

389 

280

243 

302 

240

286

318 

330

400

Tuns 

per 

day

el.6

. el. 5 

e2.6

52

May

2.3 

2.4 

2.6

2.7 

2.8

2.6 

3.6 

6.4 

3.9 

3.3

3.9 

6.0 

4.4 

4.7 

4.7

4.4 

5.6 

5.3 

5.6 

5.3

5.0 

4.7 

4.6 

6.1 

5.9

4.4 

4.4 

4.7 

5.7 

5.8 

6.0

139.8

88 

100

231

167 

430

101 

110

169 

203 

150 

120

75 

82 

126 

168 

151

90 

70 

72 

123 

77 

83

0.5 

e.6 

e.7 

e.7 

.8

e.7 

el.4 

e8.0 

eS.O 

2.1 

S2.2 

7.0 

el.6 

1.3 

1.4

2.0 

3.1 

2.1 

1.8 

el. 3 

1.0 

1.0 

1.6 

2.8 

2.4

1. 1

.8 

.9 

1.9 

1.2 

1.3

60.3

March

Mean

discharge 

( second - 

feet)

2.5 

2.6 

2.8 

2.8 

2.8

2.8 

2.6 

2.6 

2.6 

2.5

2.5 

2.5 

2.5 

2.6 

2.6

2.6 

*?* 

2.9 

2.6 

2.6

2.8 

2.8 

2.8 

2.6 

2.8

2.8 

2.9 

2.7 

2.6 

2.7 

2.9

Suspended sediment

Mean 

concentration 

(ppm)

289

329 

283 

277 

328 

295

279 

340 

310

267

248

237 

234 

310 

310

291 

284 

213

83.3

Tors 

pedale2.4 

e2.2 

2.2 

e2.4 

e2.4

2.5 

2.0 

1.9 

2.3 

2.0

el.8 

el.7 

1.9 

2.4 

2.2

e2.0 

2.1 

e2.0 

el.8 

1.7

1.8 

1.9 

2.3 

2.2 

e2.4 

e2.2 

2.3 

eZ.O 

2.0 

el. 9 

1.7

64.5

June

9.7 

12 

8.2 

10 

10

16 

20 

24 

19 

14 

17 

16 

6.4 

8.2 

11

13 

18 

25 

25 

31

31 

23 

25 

25

27

23 

21 

21 

20 

16

545.5

180 

240

245 

241

443 

565 

605 

497 

410

519 

449 

360 

402 

620 

610 

1,090 

1,200 

970 

1,360

1,330 

900 

655 

555 

520

520 

560 

740 

1,050 

1,000

44.7 

7.8 

e5. 5 

6.6 

6.5

19 

31 

39 

26 

15

24 

19 

6.2 

8.9 

18

21 

53 

81 

66 

114

111 

56 

44 

37 

38 

32 

32 

42 

57 

43

1,060

e Estimated.

s Computed hy subdividing day.
128 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

EAGLE DRAIN NEAR SHOSHONI, WYO. Continued

Suspended sediment, water year October 1949 to September 1950 Continued

Day

3

13

21

23

24

27

29

TotalJuly

Mean

charge 

(secondfeet)

14 

14 

16 

23

27

27 

31 

32

27 

25

22 

23 

29 

29 

29

28 

27 

25 

25 

25

24

30 

34 

31 

27 

30 

25 

21 

20 

20 

18

778

Suspended sediment

Mean 

concentration 

(ppm)

740

1,000 

945 

845

870 

1,160 

1,170 

1,280 

1,640 

1,760 

2,020 

1,820 

1,780 

1,710

2,030 

1,950 

2,380 

1,860 

1,650

1,750

1,680 

1,780

2,050 

2,200 

2,190 

1,870 

1,510 

1,550

Tons 

per 

day

28 

e36 

43

59 

62

63 

97 

101 

93 

111

105 

125 

143 

139 

134 

153 

142 

161 

126 

111

113 

el50 

el60 

141 

130

166 

148 

124 

101 

82 

75

3,420

Total discharge for year (second-foot-day 

Total load for year (tons) ..............

August

Mean 

discharge 

(secondfeet)

25 

22 

21

21 

24

25 

21 

23 

23 

24

23 

22 

21

21 

17

14 

14 

16 

17 

18

22 

19 

16 

16 

17 

16 

17 

14 

15 

14 

15

593

Suspended sediment

Mean 

concentration 

(ppm)

1,880 

1,620 

1,76,0 

1,650 

1,400

1,320 

1,350 

1,200 

1,260 

1,430

1,950 

1,580 

1,730 

2,630 

3,200

3,460 

3,960 

3,800 

3,400 

2,640

2,630 

2,920 

2,570 

2,820 

1,720

1,650 

2,300 

2,010 

1,680 

1,410 

1,220

Tons 

per 

day

127 

96 

100 

94 

91

89 

77 

75 

78 

93

121 

94 

98 

149 

147 

131 

150 

160 

156 

128

156 

150 

111 

122 

79

71 

106 

76 

68 

53 

49

3,300

September

Mean

charge 

(secondfeet)

15 

19 

20 

21 

18

13 

12 

13

14 

15

16 

10 

7.1 

6.4 

7.1 

6.1 

6.1 

5.8 

5.0 

9.5

7.5 

5.3 

4.7 

4.4 

4.2

4.2 

4.0 

3.9 

4.4 

4.2

285.9

Suspended sediment

J'^an 

concentration 

(ppm)

1,100 

1,290 

990 

980 

800

720 

700 

2,300 

720

270 

210 

200 

170 

210

280 

220 

190 

220 

1,310

310 

220 

220

180 

160 

110 

160 

310 

300

Tons 

per 

day

45 

66 

53 

56 

39

25 

23 

81 

27 

e!3 

12 

5.7 

3.8 

2.9 

4.0

4.6 

3.6 

3.0 

3.0 

34

6.3 

3.1 

2.8 

e2.4 

2.0

i.e

1.2 

1.7 

3.7 

3.4

533

......................................................... 8, 780
YELLOWSTONE RIVER BASIN 129

YELLOWSTONE RIVER BASIN Continued 

LATERAL P-34.9 WASTEWAY NEAR SHOSHONI, WYO.

LOCATION. At gaging station, 0.1 mile upstream from mouth and 5J miles west of Stoshoni,

Fremont County.

RECORDS AVAILABLE. Sediment records: May 1949 to September 1950 (discontinued). 

EXTREMES, 1949-50. Sediment concentrations: Maximum observed, 317 ppm Sept. 15; minimum

daily, no flow on many days.

Sediment loads: Maximum daily, not determined; minimum daily, 0 tons on many drvs. 

EXTREMES, May 1949 to September 1950. Sediment concentrations: Maximum observed, 1,510

ppm May 31, 1949; minimum daily, qo flow on many days each year. 

Sediment loads: Maximum daily, not determined; minimum daily, 0 tons on many diys

each year. 

REMARKS. Records of discharge for water year October 1949 to September 1950 giver in

Water-Supply Paper 1176.

Monthly and annual summary of water and suspended-sediment discharge, water year October 1949 to September 1990

Month

April ................

September ............

Water year 1949-50 . .

Discharge 

(secondfoot-days)

8.9 

0 

0 

0 

0 

0

0 

67.1 

164.0 

300.3 

225.9 

150.1

916.3

Runoff 

(acre-feet)

18 

0 

0 

0 

0 

0

0 

133 

325 

596 

448 

298

1,820

Suspended sediment

Load 

(tons)

1.1 

0 

0 

0 

0 

0

0 

18 

99 

185 

87 

67

450

Daily load (tons)

Mean

0.04 

0 

0 

0 

0 

0

0 

.6 

3.2 

6.0 

2.8 

2.2

1.2

Maximum

0 

0 

0 

0 

0

0

--

Minimum

0 

0 

0 

0 

0 

0

0 

0

0

0

Concentration (ppm)

Weighted 

 mean

46

99 

215 

228 

143 

165

Maximum 

observed

196 

302 

306 

258 

317

317
130 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

LATERAL P-36.8 WASTEWAY NEAR SHOSHONI, WYO.

LOCATION.--At gaging station, 100 feet upstream from mouth and 4i miles wsst of Sbosboni,

Fremont County.

RECORDS AVAILABLE. Sediment records: May 1949 to September 1950 (discontinued). 

EXTREMES, 1949-50. Sediment concentrations: Maximum observed, 4,200 ppm May 19; minimum

daily, no flow on many days.

Sediment loads-; Maximum daily, not determined; minimum daily, 0 tons 01 many days. 

EXTREMES, May 1949 to September 1950. Sediment concentrations: Maximum observed, 4,440

ppm May 12, 1949; minimum daily, no flow on many days each year. 

Sediment loads: Maximum daily, not determined; minimum daily, 0 tons 01 many days each

year. 

REMARKS. Records of discharge for water year October 1949'to September 1950 given in

Water-Supply Paper 1176.

Month

March .............

April ...............

May ................

July ................

September ..........

Water year 1949-50

Discharge 

(secondfoot-days)

7.0 

0 

0 

0 

0 

0

0 

76.0 

80.9 

181.6 

213.1 

139.4

698.0

Runoff 

(acre-feet)

14 

0 

0 

0 

0 

0

0 

151 

160 

360 

423 

276

1,384

Suspended sediment

Load 

(tons)

5 

0 

0o'

0 

0

0 

190 

83 

260 

210 

98

850

Daily load (tons)

Mean

0.2 

0 

0 

0 

0 

0

0 

6.1 

2.8 

8.4 

6.8 

3.3

2.3

Maximum

0 

0 

0 

0 

0

0

-

Mlftinmy1

0 

0 

0 

0 

0 

0

0 

0

0

0

Concentration (ppm)

Weighted 

mean

265

926 

380 

530 

36S 

260

-

Mflyimtiiyi

observed

4,200 

662 

835 

368 

536

4,200
YELLOWSTONE RIVER BASIN 131

YELLOWSTONE RIVER BASIN Continued 

POISON CREEK NEAR SHOSHONI, WYO.

LOCATION. At gaging station below bridge on U. S. Highway 26, 1 mile west of Shoshoni,

Fremont County.

RECORDS AVAILABLE.--Sediment records: March 1949 to September 1950. 

EXTREMES, 1949-50. Sediment concentrations: Maximum observed, 108,000 ppm July 2;

minimum daily, no flow on many days. 

Sediment loads: Maximum daily, 8,000 tons (estimated) July 23; minimum daily, 0 tons

on many days. 

EXTREMES, March 1949 to Septmeber 1950. Sediment concentrations: Maximum observed,

108,000 ppm July 2, 1950; minimum daily, no flow on many days each year. 

Sediment loads: Maximum daily, 8,000 tons (estimated) July 23, 1950; minimum daily, 0

tons on many days each year. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in

Water-Supply Paper 1176.

Monthly and annual summary of water and suspended-sediment discharge, water year October 1949 to September 1950

Month

March................

April .................

May

September ............

Water year 1949-50. . .

Discharge 

(secondfoot-days)

10.7 

15.4 

9.3 

3.1 

9.0 

14.9

39.2 

67.2 

10.2 

36.7 

4.0 

13.9

233.6

Runoff 

(acre -feet)

21 

31 

18 

6.1 

18 

30

78 

133 

20 

73 

7.9 

28

464.0

Suspended sediment

Load 

(tons)

4.5 

4.3 

2 

2 

13 

130

860 

2,040 

290 

9,200 

1.2 

480

a!3,000

Daily load (tons)

Mean

0.1 

.1 

.1 

,1 

.5 

4.2

29 

66 

9.7 

297 

.04 

16

3&

Maximum

460 

270 

e8,000

280

e8,000

Minimum

(t) 

(t) 

(t) 

(t) 

(t)

(t) 

(t) 

(t) 

0 

0

0

Concentration (ppm)

Weighted 

mean

1S6 

103 

80 

239 

535 

3,230

8,120 

11,200 

10, 500 

89,500 

111 

12,800

--

Mpxiroum 

observed

230 

175 

134 

347 

1,940 

16,400

16,000 

15,400 

3,680 

108,000 

262 

30,400

108,000

e Estimated.

a Load mostly estimated.
YELLOWSTONE RIVER BASIN Continued 

POISON CREEK NEAR SHOSHONI, WYO. Continu

Particle-size analyses of suspended sediment, June 1949 to Sep

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 

W, In distilled water; C, chemically dispersed; M, mechanicall

Date of collection

Sept. 21 .................

Time

8:50 a.m. 

1:55 p.m. 

MO p.m. 

12:00m.

2:05 a. m. 

2:55 a. m. 

10:05 a. m. 

10:30 a. m. 

12:25 p.m.

Discharge 

(secondfeet)

41

a. 3 

a8.9 

a7.0

37.2 

56.8 

a 5. 3 

1.6 

e3.0

Suspended sed

Concentration 

of sample 

(ppm)

28, 200 

10, 100 

16,000 

10,900

101, 000 

90,800 

16,400 

27,200 

23,000

Concentration 

of suspension 

analyzed 

(Ppm)

2,070 

6,000 

11,600 

7,920

8,300 

5,990 

6,540 

4,860 

8,190

Percent finer 

0.002

28

45 

34

0.004

32 

41 

61 

48

44

50 

84 

82 

72

0.008

58

77 

67

0.016

69 

85 

88 

82

78 

84 

99 

99 

97

0

e Estimated. 

a Mean dally discharge.
YELLOWSTONE RIVER BASIN 133

YELLOWSTONE RIVER BASIN Continued 

BADWATER CREEK AT BONNEVILLE, WYO.

LOCATION. At gaging station, at Bonneville, Fremont County, 5i miles upstream froir

mouth.

DRAINAGE AREA. 790 square miles.

RECORDS AVAILABLE. Sediment records: October 1947 to September 1950. 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 73,000 ppm Sept. 11;

minimum daily, no flow on many days. 

Sediment loads: Maximum daily, 14,000 tons Sept. 20; minimum daily, 0 tons on mjny

days. 

EXTREMES, 1947-50. Sediment concentrations: Maximum daily, 108,000 ppm July 11, 1949;

minimum daily, no flow on many days each year. 

Sediment loads: Maximum daily, 69^,800 tons June 2, 1949; minimum daily, 0 tons on

many days each year, 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in

Water-Supply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

O

18 ----- . 

19 

20 

21 

22 

23 ------ 

24 

25 

26 

27 

28 - 

29 

30 

31 

TotalOctober

Mean

charge 

(secondfeet)

ooooo ooooo 

0.6

Suspended sediment

Mean 

concentration 

(ppm)

--

Tons 

per 

day

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

(t)

1

November

Mean

charge 

(secondfeet)

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1

.1 

.1 

.1 

.5

.3 

.1 

.1 

.1 

.1

0 

0 

0 

0 

.4 

2.0 

1.7 

1.5 

.1 

0

8.3

Suspended sediment

Mean 

concentration 

(ppm)

800 

3,400 i ;

7,000 

400

--

Tons 

per 

day

' (t)

5 

e2

(t)

0 

0 

0 

0

(t)

38 

e20 

e4 

(t) 

0

75

December

Mean 

discharge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(ppm)

Torts 

per 

day

0

e Estimated.

t Indicates sediment discharge less than 1 ton.
134 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

BADWATER CREEK AT BONNEVILLE, WYO. Continued

Suspended sediment, water year October 1949 to September 1950 Continued1

Day

1ft

94

25

9fl

27

9ft

30 

Total9

12

IB

91

22 ...... 

23 - 

24 

25 ----- - 

26 ------ 

27 

28 ------ 

29 ------ 

30 - 

31 

TotalJanuary

Mean

charge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

0

April

12 

13 

14 

27 

27

24 

36 

61 

96 

117 

54 

29 

30 

41 

52

54 

60 

50 

42 

31

27 

21 

18 

17 

9.6

6.8 

7.8 

10 

13 

14

1,014.2

8,200 

4,500

12,000 

6,900

9,800 

3,300

2,900 

2; 600

1,900 

1,200

e36 

e38 

e90 

600 

eSOO

290 

e420 

e720 

e 1, 300 

3,800 

e 1, 100 

540 

e550 

e750 

el, 000

el, 300 

1,600 

e 1, 200 

e700 

280

e240 

e!80 

elSO 

130 

67

35 

25 

e60 

e!30 

e!40

17, 800

February

Mean

charge 

(secondfeet)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

6.7 

19 

20

19 

18 

16 

12 

13

9.9 

12 

12

157.6

Suspended sediment

Mean 

concentration 

(ppm)

7,200 

5,800

7,400 

2,400

Tons 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

e65 

e260 

e380 

370 

e340 

250 

e!70 

e220

e200 

240 

78

2,600

May

18 

21 

24 

25 

25

31 

28 

41 

27 

21 

18 

25 

31 

37 

48

74 

74 

63 

63 

44 

32 

18 

14 

14 

12

9.3 

13 

17 

24 

19 

12

922.3

3,600 

5,700

11,000

3,300 

3,600

9,000

8,900

3,800

3,400 

4,000 

3,800

2,900 

1,600 

2,400 

2,200 

3,200 

1,500

--

170 

e200 

370 

e440 

e440

e550 

eSOO 

1,200 

e340 

e!90 

160 

e220 

300 

e360 

e700

1,800 

e 1, 800 

el, 500 

1,500 

e850

330 

e!30 

130 

160 

120

73 

56 

110 

140 

160 

49

15,000

March

Mean 

discharge 

(secondfeet)

15 

14 

19 

15 

17

21 

17 

22 

25 

.3

0 

0 

0 

0 

.5

5 

8 

10 

10 

10

10 

12 

12 

12 

12

12 

11 

10 

10 

11 

12

332.8

Suspended sediment

Mean 

concent-ation 

(ppm)

9,200 

8,400 

6,200

6,600 

2,800 

3,600 

6,500

7,000 

6,800 

4,800

3,600

7,300 

7,300

5,000 

2,600

Tons 

per 

day

s580 

320 

320 

e240 

eSOO

370 

130 

210 

440 

e4

0 

0 

0 

0 

e5

e60 

ellO 

el60 

e!80 

190

180 

160 

el20 

120 

elSO

e200 

220 

200 

e!80 

150 

84

5.400

line

9 

5.8 

6.0 

2 

.9

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

5 

10 

3 

1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

42.7

750 

600 

1,200 

500 

200

11,000 

6,300 

3,200

18 

9 

19 

3 

(t)

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

e200 

300 

51 

9

0 

0 

0 

0 

0

0 

0 

0 

0 

0

610

e Estimated.

s Computed by subdividing day.

t Indicates sediment discharge less than 1 ton.
YELLOWSTONE RIVER BASIN 135

YELLOWSTONE RIVER BASIN ContiDued 

BADWATER CREEK AT BONNEVILLE, WYO. Coat inued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

Q

1ft

OO

27

9ft

29

TotalJuly

Mean

charge 

(secondfeet)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.5 

0

0 

0 

0 

0 

0 

0

0.5

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

e5 

0

0 

0 

0 

0 

0 

0

5

August

Mean

charge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

0

September

Mean 

discharge 

(secondfeet)

0 

0 

0 

0 

0

0 

0 

0 

0 

10

5 

0 

0 

0 

0

0 

0 

0 

0 

50

3 

I 

0 

0 

0

0 

0 

0 

15 

1

85

Suspended sediment

Mean 

concentration 

(ppm)

59, 000 

73,000

32,000

66,000 

70, 000

42, 000 

42, 000

Tons 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

0 

s2,800

l.COO 

0 

0 

0 

0

0 

0 

0 

0 

s 14, 000

550 

200 

0 

0 

0 

0 

0 

0 

s2, 500 

120

21.200

Total discharge for year (second-foot-days)...................................................... 2, 564.0

Total load for year (tons) ...................................................................... 62,700

e Estimated.

s Computed by subdividing day.

3Z6665 O - 55 - 10
YELLOWSTONE RIVER BASIN Continued 

BADWATER CREEK AT BONNEVILLE, WYO. Continu

Particle-size analyses of suspended sediment, November 1949 to S

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; 8

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Nov. 19, 1949...........

Feb. 27, 1950 ...........

May 3 ..................

June 18 .................

Sept. 29 ................

Time

4:00 p. m. 

11:40 a.m. 

4:20 p. m. 

3:00 p. m. 

4:20 p. m.

10:05 a. m. 

11:15 a.m. 

12:50 p.m. 

10:15 a.m. 

8:00 a. m.

1:30 p. m. 

7:15 p.m. 

8:10 p. m.

Discharge 

(secondfeet)

el.O 

11 

27 

22 

e!4

e23 

24 

32 

17 

elO

e50 

157 

26

Suspended sedi

Concentration 

of sample 

(ppm)

17,000 

7,520 

35,000 

5,820 

7,280

13,500 

6,540 

3,760 

3,720 

10, 900

105,000 

90, 200 

52,400

Concentration 

of suspension 

analyzed 

(ppm)

2,790 

2,670 

8,570 

4,470 

4,060

7,760 

2,840 

2,850 

2,250 

6,430

5,230 

5,930 

10,700

0.002

40 

15

25

0.004

60 

24 

19 

33 

38

32 

25 

53' 

35 

68

61 

49 

60

Percent finer 

0.008

82 

36

38

0.016

98 

50 

38 

57 

58

47 

35 

75 

47 

84

95 

75 

89

0.
YELLOWSTONE RIVER BASIN Continued 

MUDDY CREEK NEAR PAVILLION, WYO.

LOCATION. At gaging station, three-quarters of a mile upstream from Wyoming Canal siphon, 3 miles 

of Pavillion, Fremont County. 

DRAINAGE AREA. 257 square miles.

RECORDS AVAILABLE. Sediment records: March 1949 to September 1950. 

EXTREMES, 1949-50. Sediment concentrations: Maximum observed, 189,000 ppm June 19; minimum daily, 

Sediment loads: Maximum daily, 140,000 tons (estimated) July 4; minimum daily, 0 tons Sept. 2-8. 

EXTREMES, March 1949 to September 1950. Sediment concentrations: Maximum observed, 302,000 ppm Ju

Sediment loads: Maximum daily, 140,000 tons (estimated) July 4, 1950; minimum daily 0 tons Sept

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply 

Chemical analyses, In parts per million, September 1949 to Septemb

Date of collection

Sept. 5, 1949 ..... 

Dec. 8 ...........

Mar. 20, 1950 ....

Discharge 

(secondfeet)

1.8 

a. 4 

a 13 

4.6 

6.2

Temperature

(°F.)

PH

7.4 

7.7 

7.6 

7.7 

7.8

Specific 

conductance 

(micromhos at 

25" C.)

2,060 

2,150 

1,460 

1,990 

1,600

Silica 

(SiO,)

14 

20 

22 

16 

14

Iron 

(Fe)

0.02 

.04 

.02 

.10 

.06

Calcium 

(Ca)

212 

211 

154 

182 

174

Magnesium 

(Mg)

91 

126 

73 

100 

72

Sodium 

(Na)

Potassium 

(K)

185 

172 

98 

151 

115

Bicarbonate 

(HCO,)

2S8 

350 

256 

260 

242

Sulfate 

(S04)

1,020 

1,050 

635 

910 

728

Chloride 

(Cl)

19 

24 

14 

20 

14

a Mean daily discharge.
138 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

MUDDY CREEK NEAR PAVILLION, WYO. Continued

Suspended sediment, water year October 1949 to September 1950

Day

12

15 ......

1 A

91

an

24

9ft

9fl

29

31 ......

Total4

12

44

18 ......

20

21 ----- - 

22 ...... 

23 ...... 

24 ------ 

25 ------ 

26 ------ 

27 ------ 

28 ------ 

29 

30 ------ 

31 ...

TotalMean

charge 

(secondfeet)

7.4

3 A

3

0

3

0

3.0 

2 2

2.6

2

Q

5.0

156.7

2

2

2

1

4

2.0

2.2

2.4 

2.7

3.3 

3.0 

2.8 

2.8 

2.7

2.6 

2.6 

2.5 

2.5 

2.4 

2.4

48.9

October

Suspended

Mean 

concentration 

(ppm)

748

--

2 ' 380

2,700

January

9Ofl

87

~

128 

140

sediment

Tons 

per 

day

ell

e30

676

«.

(t)

.

(t)

16

1

Mean

charge 

(secondfeet)

5.6

4.6

4.2

4

4

2

4

8

n

6

4

3

0

4.2

3 ft

149.8

2 A

2 3

2

4

2 9

2 2

2 t

2 1

2.1

2

4

2 1

2.2

3.5 

7.0 

14 

17 

17 

17 

16 

14

150.1

November

Suspended

Mean 

concentration 

(PPm)

__

2 91 A

3 ' 380

2 i?nn

Qftn

February

444

no

non

360

440 

612

sediment

Tons 

per 

day

r e36

1 e27

\ -

e30

820

(t)

e2

4 

e!5

e65 

23

390

Mean

charge 

(secondfeet)

.6

.5

.4

.4

.3

.2

.2

.2

O

.4

27.8

44

15

17

17

16 

14

13 

12 

12 

11 

11

10 

9.0 

9.0 

8.0 

7.0 

7.4

343.2

D member

Suspended

Mean 

concentration 

(ppm)

-_

_

236

300

462

_

75

94

1'^rch

690

2

nAf\

4

nnn

3,600

"

8,500

12,900

17, 900 

16,800

17,800 

5,940 

6,220 

6,050 

13,600

sediment

Tons 

per 

day

e26

75

e!5

e2

(t)

120

e 20

44

e24

e24

165

e!50

elSO 

e200

298

453 

6550 

580 

499 

e480

e440 

433 

144 

134 

114 

272

5,790

e Estimated.

t Less than 1 ton.
YELLOWSTONE RIVER BASIN 139

YELLOWSTONE RIVER BASIN Continued 

MUDDY CREEK NEAR PAVILLION, WYO. Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

g

10 

1ft

9l\

94

26 

no

9Q

31 

Total6 

g

99

24 ___

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

12 

14 

12

a.o

8.6

10 

10

11 

11

10

9. a 

9. a 

9. a

12 

12

11

9.2 

4.6 

5.6 

6.2 

6.2 

5.6 

4.6 

5.6 

6.2

5.6 

6.2 

9.6 

4.6 

6. a

257. a

0.7 

8.0 

8.6 

225 

56 

28 

2.6 

3.0 

2.6 

3.0

3.0 

2.6 

3.4 

3.0 

3.0

3.0 

3. a 

3.0 

3.0 

2.6 

3.0 

6.2 

6. a 

6. a 

72

17

3. a

2.2 

2.6 

2.2 

1.8

492.3

Suspended sediment

Mean 

concentration 

(ppm)

13,500 

20,000

14,900 

9,700

a, 900

9,500 

9,200

7,080

6,750 

6,800 

6,850

5,240 

6,610

5,240 

5,640

Tons 

per 

day

e460 

eSSO 

e400 

292 

464

eSOO 

402 

e380 

e360 

e260

257 

235 

251 

298 

e300

e240 

176 

e85 

102 

114 

115 

elOO 

e75 

79 

111

79 

94 

e200 

elOO 

e!40

7,220

July

1,750 

12, 100 

6,000

3,850

1,050

1,250 

900 

925 

1,100

760 

550 

600

3,450 

4, 890

3

si, 060 

139 

e!40, 000 

e 10, 000 

e4,000 

27 

ell 

e7

a

10 

6

a

9 

e9

e8

a

4 

5 

e4 

e5 

eSO 

e55 

63 

e30,000

e4,000 

50 

e9 

e!5

68 

64

139,600

Total discharge for year (second-foot-day 

Total load for year (tons) ..............

May

Mean

charge 

(secondfeet)

9.2

7.4 

10

9. a

7.4

7.4 

10 

10 

9.2

7.4

6. a

6.2 

6.2 

6.2

7.4

6.2 

6. a 

5.6 

4.6 

4.6 

4.6 

4.2 

3.4 

3.4 

4.2

4.2 

4.2 

4.6 

5.0 

4.6 

4.6

195.4

Suspended sediment

Mean 

concentration 

(ppm)

a, 860

4,130 

3,740

3,100

3,950 

2,500 

1,360 

2,080

3,000 

2,480 

1,320

~

Tons 

per 

day

6200 

6170 

234 

6170 

110

675 

6120 

6 110 

103 

e75 

670 

63 

660 

655 

670

e44 

57 

e50 

e46 

646 

646 

45 

23 

17 

24

e24 

. e24 

630 

40 

31 

23

2,300

August

i.a

1.0 

.7 

.7 

.6 

.4 

.4 

.4 

.4 

.7

.9 

16 

12

7.4 

6.2

4.2 

2.6 

1.8 

2.6 

2.6 

2.6 

1.8 

1.4 

.7

.a

.9 

.9

.a

3.9 

1.0 

.6

78. a

311

195 

462

564 

265

256 

157

123 

545

~

62 

el

(t)

62 

e2,000 

6400 

11 

66

e4 

62

(t)

2,450

June

Mean

charge 

(secondfeet)

4.6 

4.6 

4.6 

4.6 

4.2

3.4 

2.6 

4.6 

4.2 

3.4

3.4 

2.6 

2.6

1.4 

1.4

1.0 

1.4 

2.6 

46 

24 

3.3 

2.6 

1.4 

2.2 

1.4

1.4 

4.2 

1.8 

.9 

.8

147.7

Suspended sediment

Mean 

concentration 

(ppm)

2,040 

1,740

1,630

1,220 

1,230 

1,260 

1,270 

1,270

1,040 

1,440

660

47,000 

29,500 

4,950 

2,920 

3,620

13,900

2,800 

1,900

~

Tons 

per 

da."

25 

22 

e20 

e20 

e20

15 

ell 

15 

14 

12

12

9

68 

4 

5

2 

e3 

e6 

s 20, 500 

s%,880 

51 

20 

14 

622 

6 14

6 14 

158 

630 

7 

4

23,940

September

0.3 

0 

0 

0 

0 

0 

0 

0 

114 

47

8.0 

6. a 

4.6 

5.0 

9.2

10 

6.8 

6.2 

5.0 

51 

21 

13 

17

a. 6

6.2

4.6 

3.0 

3.4 

5.0

7.4

363.1

2,580 

1,530

940

3,650 

1,750

24,000 

10,800 

2,720

1,390 

1,170

1,700

(t) 

0 

0 

0 

0 

0 

0 

0 

642,000 

e«,000

56 

28 

e 13 

13 

640

660 

67 

29 

e!3 

3,300 

612 

95 

6120 

634 

23

15 

e9 

e!2 

23 

e42

54,600

........................................................ 2f 7, 900

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.
YELLOWSTONE RIVER BASIN Continued 

MUDDY CREEK NEAR PAVILLION, WYO.--Continued

Particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

June 19 ...............

Sept. 20 ..............

Time

10: 30 a.m. 

2:00 p.m. 

3:00 p.m. 

3:45 p.m. 

2:25 p.m.

1:20 p.m. 

2:10 p.m. 

2:10 p.m. 

2:30 p.m. 

3:30 p.m.

3:00 p.m. 

6: 50 p.m. 

1:15 p.m. 

11:05 a.m. 

4:55 p.m.

2:10 p.m. 

10:00 a.m. 

4:15 p.m. 

3:10 p.m. 

12:40 p.m. 

4:25 p.m.

Discharge 

(secondfset)

6.2 

5.0 

5.0 

20 

13

9.2 

8.6 

12 

9.2 

4.2

1.4 

141 

8.6 

5.0 

62

13 

34 

13 

10 

5.0 

64

Suspended sedim

Concentration 

of sample 

(ppm)

568 

1,260 

2,510 

4,440 

9,980

21,400 

27,800 

9,050 

4,040 

5,560

5,020 

164,000 

22,400 

19,300 

106,000

25,000 

54,400 

27,800 

13,100 

3,530 

23, 800

Concentration 

of suspension 

analyzed 

(ppm)

418 

1,030 

1,770 

1,530 

5,580

13,500 

8,490 

6,200 

2,250 

1,710

846 

5,820 

9,530 

6,840 

5,310

8,840 

5,230 

5,290 

4,250 

2,470 

9,500

Percent finer 

0.002

21 

19 

20 

30

16

60

37

0.004

38 

26 

28 

36 

49

28 

22 

36 

35 

24

15 

31 

58 

71 

30

69 

58 

72 

73 

85 

48

0.008

50 

36 

38

47

28

86 

57

0.016

64 

46 

48 

55 

54

45 

37 

56 

47 

30

24 

49 

89 

96 

50

92 

82 

94 

93 

99 

65

0.
YELLOWSTONE RIVER BASIN Continued

MUDDY CREEK NEAR SHOSHONI, WYO.

LOCATION. At gaging station, 5 miles upstream tram mouth and 9 miles northwest of Shoshoni, Fremont 

RECORDS AVAILABLE. Sediment records: March 1949 to September 1950.

EXTREMES, 1949-50. Sediment concentrations: Maximum observed, 176,000 ppm June 20; minimum daily, 

Sediment loads: Maximum daily, 200,000 tons July 5; minimum daily, 0 tons on many days. 

EXTREMES, March 1949 to September 1950. Sediment concentrations: Maximum observed, 330,000 ppm Jul

Sediment loads: Maximum daily, 200,000 tons July 5, 1950; minimum daily, 0 tons on many days each 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply P

Chemical analyses, in parts per million, September 1949 to Septem

Date of collection

Sent. 18 ............

Discharge 

(secondfeet)

aO.9 

a. 3 

a5.2 

3.7 

20 

15

Temperature 

(°F)

PH

7.1 

7.6 

7.9 

7.7 

7.9 

8.0

Specific 

conductance 

(micromhos at 

25° C )

4,670 

3,430 

1,720 

2,780 

916 

1.070

Silica 

(SiO,)

26 

20 

32 

17 

16 

18

Iron 

(Fe)

0.02 

.04 

.04 

.02 

.02 

.02

Calcium 

(Ca)

448 

318 

190 

242 

93 

106

Magnesium 

(Mg)

267 

195 

82 

141 

30 

38

Sodium 

(Na)

Potassium 

(K)

493 

400 

148 

254 

71 

82

Bicarbonate 

(HCO,)

482 

372 

218 

244 

178 

184

Sulfate

<so«)

2,690 

2,000 

890 

1,420 

333 

413

Chloride 

(Cl)

61 

52 

16 

38 

11 

12

a Mean daily discharge.
142 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

MUDDY CREEK NEAR SHOSHONI, WYO. Continued

Suspended sediment, water year October 1949 to September 1950

Day

4 

19

20

21

oo

OQ

94

9ft

9Q

31 

Totaltq

13

in

on

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

charge 

(secondfeet)

0.3 

1.1 

1.3 

1.4 

1.4

1.3 

2.4 

5.6 

6.3 

6.0 

4.0 

4.0 

4.0 

4.0 

4.0 

4.3 

4.3 

5.6 

3.5 

3.0

2.6 

2. 6 

4.0

14 

14

9.9 

8.2 

6.3 

6.3 

5.3 

4.7

145.7

Suspended sediment

Mean 

concentration 

(ppm)

420

470 

500

3,200 

1,300 

958

726 

1,020

1,400

11, 000 

4,200 

2,760

3,160

January

0

Tons 

per 

day

(t) 

e2

3 

e22 

e42

e!5

416

e500

112 

e70 

47 

e46 

e42 

40

1,600

0

November

Mean

charge 

(secondfeet)

5.0 

4.7 

4.3 

3.7 

4.0

3.7 

4.0 

4.3 

5.0 

4.7 

4.7 

3.2 

2.2 

3.2 

3.5

2.2 

1.5 

1.1 

.9 

.8

.7 

1.1 

1.3 

2.7 

5.6

4.7 

3.5 

4.0 

3.7 

3.1

97.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

4.0 

9.0 

11 

12 

13

12 

6.0 

5.2

72.2

Suspended sediment

Mean 

concentration 

(ppm)

3,200 

1,400

4,040 

4,200 

2,800

1,320

1,260 

3,080

3,320 

188 

12, 100

3,400 

3,500 

1,300

-

Tons 

per 

day

e37

e!2

e3 

(t) 

e26 

183

e50 

e26 

37 

35 

11

900

February

552 

5,360

5,400 

5,600

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

6 

e46 

159 

e240 

e300

e240 

88 

79

1,200

De -.ember

Mean

charge 

(secondfeet)

2.5 

1.5 

1.0 

.8 

.6

.5 

.4 

.3 

.2 

.1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

1.9

Suspended sediment

Mean 

concentration 

(ppm)

474 

252

212 

148

-

Tons 

per 

day

5 

2

1

(t)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

10

1'vch

5.6 

10 

13 

18 

14

8.6 

3.7 

3.2 

2.7 

2.2 

1.8 

1.4 

3.5 

8.0 

23 

29 

23 

22 

19 

12 

12 

11 

11 

13 

15

9.4 

9.1 

8.5 

8.5 

16 

17

354.2

6,000 

6,500

13,200 

3,000 

900 

3,000

1,200 

2,100 

3,700

14,500 

8,000

15,800 

11,400

7,000 

14, 600 

11,200 

11,400 

23,900

~

91 

176 

e220 

e480 

e380

306 

30 

8 

22 

e!2

e6 

e4 

11 

45 

230

el, 000 

e900 

e800 

e700 

470 

259 

e200 

469 

400 

e600

e340 

172 

335 

257 

492 

1,100

10,500

e Estimated.

t Less than 1 ton.
YELLOWSTONE RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

MUDDY CREEK NEAR SHOSHONI, WYO. Continued

Suspended sediment, water year October 1949 to September 1950 Continued

143

Day

4

 tn

1ft

18- - 

19

9n

9t

Oft

qn

29 

30 -

31 

Totalg

o

Q

15 

1ft

19 

22 

23 

24 

25 

26 

27 

28 

29 

30- 

31 

Total

April

Mean

charge 

(secondfeet)

16 

14 

14 

13

n

11 

11 

11 

11 

11

9.0 

9.0 

9.4 

9.4 

9.0

8.6 

8.2 

7.7 

7.3 

5.3

4.7 

3.5 

1.9 

2.4 

3.7

4.0 

4.0 

6.6

7.7 

4.0

249.4

Suspended sediment

Mean 

concentration 

(ppm)

28,000 

19,300

20, 800

23,800

19,600 

13,800 

16, 000 

16, 000

14,400 

11,600

6,070

8,000 

10,000

13,000

Tons 

per 

day

el, 400 

e 1, 100 

1,060 

677 

e650

e600 

618 

e600 

e650 

707

476 

335 

406 

406 

e400

e380 

319 

e280 

229 

elSO

77 

e55 

e36 

52 

100

140 

e!40 

e220 

e280 

elOO

12,600

July

15 

24 

28 

22 

286 

52 

39 

34 

31 

27

18 

14 

8.2 

4.0 

4.3 

4.0 

2.0 

3.6 

6.3 

2.7

13 

28 

27 

32 

67 

145 

67 

63 

67 

72 

66

1,272.1

7,900

35,600 

12,100

47,200 

23,000 

15, 500

10, 700

7,400 

5,700 

4,000 

2,000 

2,700 

1,100 

2,200 

2,600 

3,20ft 

17000

9,370

42,000

43,000 

23,000 

22, 000 

27,500 

21,000

320 

el, 600 

2,790 

719 

e 200, 000

87,060 

2,420 

1,420 

e900 

780

360 

216 

89 

22 

31 

12 

12 

25 

54 

7 

s454 

el, 000 

e950 

e3,500 

s 11, 500

e60,000 

8,070 

3,910 

3,980 

5,350 

3,740

321,300

Total discharge for year (second-foot-day 

Total load for year (tons) ...............

May

Mean

charge 

(secondfeet)

4.7 

6.0 

9.4 

9.9 

7.0

5.6 

8.2 

11 

8.2 

6.3

4.7 

4.7 

8.3 

7.0 

11

13 

13 

9.3 

3.0 

2.7 

2.4 

1.4 

1.3 

1.9 

3.5

6.6 

5.3 

6.7 

3.5 

1.4 

.8

187.8

Suspended sediment

Mean 

concentration 

(ppm)

8,180 

13, 000

6,060

5,930

9,400

14,800 

18,700 

9,200

11,200

3,600 

1,950 

1,800 

1,540

6,100 

12,100 

11,600 

9,000 

3,600 

1,600

Tons 

per 

day

104 

elSO 

330 

e380 

e280

e!20 

eSOO 

e600 

134 

elOO

e75 

75 

e200 

e!70 

279

519 

656 

231 

e75 

82

e60 

14

7 

9 

15

109 

173 

210 

85 

14 

3

5,590

August

65 

60 

55 

50 

40

20 

16 

20 

7.4 

1.3 

2.5 

3.7 

20 

6.3 

5.6 

2.7 

1.9 

2.2 

2.7 

3.5

3.0 

3.0 

16 

22 

25

24 

22 

18 

18 

18 

9.0

563.8

18,000 

22,000 

16,000 

15,500 

9,000

6,500 

8,000 

10,000 

3,000 

700

2,500 

3,700 

32,000 

6,500 

3,900 

1,300 

920 

1,880 

1,000 

2,250

2,800 

2,100 

6,910 

7,000 

8,180

5,150 

4,550 

6,000 

6,200 

5,300 

3,000

3,160 

3,560 

2,380 

2,090 

972

351 

346 

540 

60 

2

17 

37 

s2,710 

111 

59 

9 

5 

11 

7 

21

23

17 

s350 

416 

552

334 

270 

292 

301 

258 

73

19,330

June

Mean

charge 

(secondfeet)

0.8 

1.1 

1.4 

1.0 

2.2

1.6 

.3 

.1 

0 

0

.5 

.1 

0 

0 

0

3.8 

3.2 

.8 

2.5 

41

9.1 

6.3 

12 

17 

24

25

21 

16 

15 

14

219.8

Suspended sediment

Mean 

concentration 

(ppm)

1,600 

1,700

3,300 

6,400

2,900 

550 

260

638 

650

8,640 

6,400 

500 

3,560 

130, 000 

57,000 

33,000 

17, 000 

13,000 

16,100

15,000 

9,800 

17,500 

14,400 

13,000

Tois 

per 

day

3 

5 

e9 

9 

s51 

13 <t: <t;

0 

0

s2 

(f 

0 

0 

0

sl!9 

s65 

1 

s31 

s 28, 700

£ 1, 530 

561 

551 

597 

1,040

1,010 

556 

756 

583 

491

36,680

September

2.2 

3 2 

2.2 

2.2 

1.1

1.3

1.7 

1.3 

2.4 

143 

24 

20 

17 

15 

22 

22 

17 

14 

14 

58

86 

25 

15 

7.3 

3.5

2.7 

1.4 

2.7 

6.0 

6.3

539,5

1,050 

1,280 

1,020 

380 

210

300 

380 

630

127,000 

25,000

5,600 

4,850 

7,600

5,700 

5,400 

3,800

14,000 

7,500 

14,000 

13,500

4,990 

2,900

6,850

--

s) ...................................................

6 

11 

6 

2 

(t^ 

1 

2 

2 

e6 

395,000

1,620 

eSOO 

257 

196 

451 

e450 

262 

204 

144 

e 20, 000

e 15, 000 

945 

304 

276 

128

36 

11 

e32 

111 

110

l'S.100

.. 3,709.5 

.. 5*5,800

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.
YELLOWSTONE RIVER BASIN Continued 

MUDDY CREEK NEAR SHOSHONI, WYO. Continue

Particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; H, mechanically 

Date of collection

July 19 ..................

Aug 13 . . ...........

Sept. 24 .................

Time

9:56 a.m. 

4:10 p.m. 

2:50 p.m. 

2:00 p.m. 

2:05 p.m.

10:45 a. m. 

4:40 p. m. 

4:00 p.m. 

12:30 p. m. 

3:50 p.m.

4:40 p. m. 

3:15 p.m. 

9:30 a. m. 

6:25 p.m. 

10:15 a.m.

11:45 a. m. 

3:15 p.m. 

2:50 p.m. 

2:45 p.m. 

11:00 p.m.

3:15 p.m. 

12:30 p. m. 

2:45 p.m. 

8:55 a. m. 

1:25 p.m.

2:40 p.m. 

10:15 a.m. 

10:40 a. m.

Discharge 

(secondfeet)

5.6 

20 

a5. 2 

a8. 0 

17

a 14 

10 

6.6 

4.3 

14

6.0 

7.0 

63 

24 

16

28 

146 

94 

4.3 

112

144 

70 

51 

38 

105

21 

a25 

14

Suspended sedi

Concentration 

of sample 

(ppm)

3,120 

11,200 

19,600 

4,240 

26, 200

28, 800 

18, 600 

14,400 

6,060 

19,200

11,000 

13,800 

176,000 

16,800 

20,000

41, 800 

153,000 

38,300 

2,420 

82,000

105,000 

47,900 

16,000 

55,000 

146,000

15,600 

14,400 

17,000

Concentration 

of suspension 

analyzed 

(ppm)

968 

2,100 

3,640 

2,040 

15,400

2,350 

1,720 

4,630 

3,400 

4,390

5,140 

7,310 

7,540 

5,930 

7,160

25,000 

12,500 

6,080 

1,370 

4,090

9,270 

8,040 

9,770 

5,190 

3,150

5,710 

2,660 

6,120

Percent finer 

0.002

45 

25 

11

38 

36

28 

29

31

32 

48

-0.004

70 

40 

16 

31 

50

46 

41 

36 

54 

33

33 

37 

39 

30 

68

48 

36 

37 

66 

41

35 

44 

30 

50 

44

62 

58 

74

0.008

88 

58 

21

56 

53

39 

49

49

50

65

0.016

94 

73 

29 

49 

74

66 

58 

56 

78 

50

50 

59 

62 

43

87

75 

58 

58 

96 

58

52 

64 

45 

75 

63

81 

73 

89

0

a Mean daily discharge.
YELLOWSTONE RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

TONGUE RIVER AT MILES CITY, MONT.

LOCATION. At gaging station, 4 miles south of Miles City, Custer County, and 8 riles

upstream from mouth. 

RECORDS AVAILABLE. Water temperatures: April 1949 to September 1950.

Sediment records: June 1946 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum, 74°F July 8; minimum, freezing point

on many days during December to March.

Sediment concentrations: Maximum daily, 9,750 ppm Apr. 2; minimum daily, not determined . 

Sediment loads: Maximum daily, 26,300 tons Apr. 2; minimum daily, 2 tons Aug. 9, 10,

19, 20. 

EXTREMES, 1946-50. Sediment concentrations: Maximum daily, 18,900 ppm Aug. 13, 1946;

minimum daily, 1 ppn Aug. 14, 15, 1947. 

Sediment loads: Maximum daily, 122,000 tons June 5, 1948; minimum daily, less than

1 ton on several days in August 1947 and July to September 1949.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in 

Water-Supply Paper 1176.

Temperature (°F) of water, water year October 1949 to September 1950 _ 

/Once-dally temperature measurement generally between 8 a. m. and 9 a. i

Day

1

2

3

4

5

8

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Average

Oct.

_

__

60

54

..

44

_-

46

--

_

42

40

45

42

33

34

42

45

_

45

47

44

Nov.

47

42

_

45

48

_

46

39

44

39

35

41

_

--

33

35

_

36

_

_

--

Dec.

_

_

,_

32

_

34

_

_

_

..

--

_

_

_.

--

Jan.

32

Feb. Mar.

_

_

33

_

~

_

_

_

_

_

_

_

_

_

32

_

_

_

._

_

_

Apr.

_

_

38

_

_

..

_

_

_

39

-

 .

_

_

--

May

52

._

_

_

_

_

_

..

_

-_

60

._

..

..

_.

..

_

-.

..

..

June

_

56

58

60

64

65

_

48

42

56

60

68

68

71

69

63

65

64

62

68

68

71

66

67

64

59

67

67

67

69

63

July

70

68

89

70

68

73

73

74

73

73

70

59

61

68

70

61

66

68

69

70

64

61

66

68

68

68

69

70

58

68

Aug.

59

62

73

65

67

_

66

68

70

_

69

70

69

66

64

55

55

_

60

64

60

63

62

64

63

62

65

Sept.

64

65

63

66

64

57

51

51

49

49

49

52

53

59

58

55

57

57

59

58

59

52

47

48

42

--

55
146 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

TONGUE RIVER AT MILES CITY, MONT.--Continued

Suspended sediment, water year October 1949 to September 1950

Day

2

3

22

25

27

28

29

31 

TotalOn

21- 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

charge 

(secondfeet)

82 

82 

85 

92 

85

70 

69 

80

too

117

120 

120 

120 

123 

129

160 

174 

206 

222 

242

255 

242 

310 

265 

255

238 

230 

230 

246 

250 

250

5,249

Suspended sediment

Mean 

concentration 

(ppm)

20

44 

31

22

21

45 

29 

64 

83

140 

212

1,400 

1,520 

340 

280 

91

Tons 

per 

day

e6 

4 

eS 

11 

7

e5 

4 

e4 

6 

ell

e!7 

15 

ell 

10 

ell 

28 

e34 

46 

e60 

92

146 

e200 

1,170 

el, 000 

1,050

eSOO 

211 

e!80 

186 

e80 

61

5,170

January

270 

240 

220 

220 

220

220 

210 

200 

190 

180 

170 

160 

155 

145 

140 

160 

150 

155 

155 

160

160 

160 

150 

140 

125

125 

130 

125 

120 

115 

115

5,185

20

1 ;

20 

16

24

24

22

16

--

e!7 

el4 

e!2 

12 

e!2

elO

9 

e8 

e7 

6 

e8 

ell 

elO 

10 

elO 

elO 

10 

e9 

e8 

e7 

7

e7 

e6 

5 

e5 

e5 

e5

280

November

Mean

charge 

(secondfeet)

250 

250 

260 

260 

255

255 

255 

255 

255 

255

265 

270 

385 

502 

532

550 

556 

568 

574 

574

520 

622 

622 

622 

622

622 

629 

629 

622 

622

13,458

Suspended sediment

Mean 

concentration 

(ppm)

102 

70

35 

38

40 

40 

40 

40 

40

56 

276 

753

450 

235

219 

365

178

170 

171

173

Tons 

per 

day

69 

47 

e32 

25 

26

28 

28 

28 

28 

28

e30 

41 

287 

1,020 

e850

668 

e480 

360 

e320 

e300

308 

e650 

613 

e420 

299

280 

290 

e300 

290 

e200

8,340

February

120 

120 

125 

125 

125

125 

130 

130 

130 

130

125 

130 

130 

130 

150 

160 

160 

160 

160 

165

170 

170 

170 

180 

185

230 

260 

300

4,395

16 

19

35 ] 

42

56 

90

87 

110

5 

e6 

e6 

6 

e6 

e6 

e8 

12 

e!3 

e!4

14 

el5 

elS 

e!6 

23 

e38 

e38 

39 

e40 

e40

e40 

40 

e45 

e50 

55

e70 

e90 

elOO

850

December

Mean

charge 

(secondfeet)

629 

629 

629 

601 

587

580 

550 

540 

520 

500

480 

480 

440 

400 

400

380 

360 

370 

370 

370

350 

330 

310 

285 

285

285 

285 

285 

285 

290 

295

13, 100

Sr«pended sediment

Mean 

concentration 

('mm)

101 

113

122 

126

8

31 

27

16 

15 

25

Tons 

per 

day

172 

e!80 

192 

e!90 

e!90

191 

187 

elSO 

e!70 

e!60

e70 

e30 

10 

elO 

elO 

e!7 

30 

e28 

e28 

27

e22 

elS 

e!5 

12 

e!2

e!2 

12 

el4 

e!7 

20 

e20

2.250

March

290 

315 

350 

390 

410 

380 

350 

360 

370 

320 

330 

320 

315 

310 

305 

310 

315 

330 

330 

330 

350 

360 

410 

400 

390

385 

370 

360 

360 

360 

500

10,975

169

114

145 

71 

100

79

56 

200

2,070 

2,930

1,230

215 

280 

725 

5,800

elOO 

e!30 

160 

e!70 

e!80

elSO 

e 130 

111 

e!40 

e!20 

129 

e90 

60 

e70 

82 

e80 

e75 

70 

e60 

e50

53 

194 

e2, 000 

2,240 

3,090

1,280 

e450 

209 

272 

705 

7,830

20, 480
YELLOWSTONE RIVER BASIN 147

YELLOWSTONE RIVER BASIN Continued

TONGUE RIVER AT MILES CITY, MONT. Continued

Suspended sediment, water year October 1949 to September 1950 Continued

Day

«*

in

24

30

31 ------

Total19

13

22 

23 

24 

25 

26 

27 

28 ----- - 

29 

30 

31 ......

TotalApril

Mean

charge 

(secondfeet)

bOO 

1,000 

1,000 

800 

550

514 

562 

406 

350 

310

285 

265 

250 

242 

255

320 

320 

315 

310 

290

226 

194 

186 

218 

270

490 

412 

390 

424 

424

12, 378

Suspended sediment

Mean 

concentration 

(ppm)

5,200 

9,750 

4,340 

2,400 

1,790

2,500 

1,960 

1,730

334

131 

107 

80 

120

241 

423 

208 

158 

99

108 

145 

132 

1,220 

1,720

2,880 

1,500 

851 

576 

220

Tons 

per 

day

11, 200 

26, 300 

11, 700 

5,180 

2,660

3,470 

2,980 

1,900 

e750 

280

e!40 

94 

72 

52 

83

208 

365 

177 

132 

78

66 

76 

66 

718 

1,250

3,810 

1,670 

896 

659 

252

77, 280

July

1^290 

1,270 

804 

657 

532

370 

300 

285 

260 

238 

230 

214 

218 

163 

142

152 

300 

265 

250 

424

375 

290 

255 

238 

226

222 

210 

170 

135 

126 

126

10, 737

626 

689 

605 

382 

189

135 

81 

66 

54 

59 

61 

54 

47 

40 

30

2,270 

380

960 

1,740 

1,520 

483 

349 

246 

215 

352 

99

58

2,180 

2,360 

1,310 

678 

272

135 

66 

51 

38 

38 

38 

31 

28 

18 

12

e24 

e 1, 900 

1,620 

256 

e 1, 300

972 

1,360 

1,050 

310 

213 

147 

122 

161 

36 

e22 

20

16, 770

May

Mean

charge 

(secondfeet)

556 

526 

556 

496 

412

315 

270 

260 

355 

330 

305 

370 

375 

370 

380

380 

375 

375 

375 

375

454 

502 

699 

783 

881

909 

909 

1,100 

1,100 

1,050 

1,070

17,213

Suspended sediment

Mean 

concentration 

(ppm)

2,900 

2,870 

2,590 

1,150 

1,000

640 

680 

265

1,780 

800 

438 

178 

138 

160

122 

159 

165 

98

226 

560 

1,080 

1,030 

1,660

970 

935

2,440 

1,180 

1,460

Tons 

per 

day

s4,620 

4,070 

3,890 

1,540 

1,110

544 

496 

186 

el, 600 

1,590

658 

438 

180 

138 

164

125 

161 

167 

99 

elOO

277 

759 

2,040 

2,180 

3,950

2,380 

2,300 

e6,300 

7,250 

3,340 

4,220

56,870

August

114 

90 

76 

65 

58

54 

48 

46 

45 

48

58 

650 

260 

129 

67

45 

20 

17 

11 

11

11 

142 

166 

186 

194 

210 

210 

163 

202 

210 

210

3,816

45 

34 

28 

36 

24

27 

23 

18

5,800 

3,510

985

375 

130 

100 

84 

73

628 

603 

477 

365

277 

223 

204 

212 

189 

178

--

14 

8 

6 

6 

4

e4 

3 

3 

2 

e2

e!60 

10,200 

2,460 

e700 

178

46 

7 

5 

2 

2 

e36 

241 

270 

240 

191 

157 

126 

90 

116 

107 

101

15, 510

June

Mean

charge 

(secondfeet)

1,050 

888 

804 

636 

448

412 

390 

550 

643 

484

360 

345 

335 

330 

526

385 

385 

418 

430 

418

406 

562 

811 

954 

1,190

1,130 

1,260 

1,270 

1,290 

1,290

20, 400

Suspended sediment

Mean 

concentration 

(ppm)

1,300 

853 

527 

231 

382

188

3,520 

3,570 

1,800

442 

294 

225 

135 

620 

1,190

1,170 

690 

360

350 

790 

1,220 

1,200 

4,230

1,740 

1,170 

1,010 

1,020 

1,000

Tons 

per 

 toy

3,680 

2,050 

1,140 

397 

462

209 

e360 

5,230 

6,200 

2,350 

430 

274 

204 

120 

880

1,240 

el, 100 

1,320 

801 

429

384 

1,200 

2,670 

3,090 

13,600

5,310 

3,980 

3,460 

3,550 

3,480

69. 600

September

166 

117 

98 

90 

82

78 

67 

70 

78 

76 

95 

156 

198 

170 

198

226 

218 

226 

238 

300 

526 

400 

380 

380 

390

424 

424 

502 

532 

532

7,437

99 

48

30 

29

26 

30

22

21 

78 

61

59 

112 

68 

66 

68 

671

6,950 

3,910 

800 

339 

66 

400 

264 

295 

369 

478

44 

15 

e8 

7 

6

5 

5 

e5 

5 

e3 

5 

33 

33 

e!7 

32

68 

40 

40 

44 

s678

9,870 

4,220 

821 

348 

70

458 

302 

400 

530 

687

18,800

Total discharge for year (second-foot-days) ...................................................... 124,343

Total load tor year (tons)....................................................................... 292, 200

e Estimated.

s Computed by subdividing day.
YELLOWSTONE RIVER BASIN Continued 

TONGUE RIVER AT MILES CITY, MONT. Continu

Particle-size analyses of suspended sediment, water year October 194

(Methods of analysis: B, bottom withdrawal tube; O, decantatlon; P, pipette; 

W, In distilled water; C, chemically dispersed; M, mechanicall

Date of collection

Oct. 25, 1949 ...........

Nov. 1ft ................

Nov. 16. ................

Mar. 31................

Apr. 4 .................

Apr. 26 ................

May 1 ..................

May 10 .................

June 15. ................

July 18 .................

July 18 .................

Aug. 15 ................

Sept. 20 ................

Sept. 21 ...............

Time

11:00 a. m. 

9:00 a. m. 

9:00 a. m. 

8:15 a.m. 

9:45 a. m.

8:45 a.m. 

6:20 p. m. 

6:20 p. m. 

7:50 a.m. 

9:00 a. m.

6:15 p.m. 

6:15 p.m. 

11:15 a. m. 

7:45 a. m. 

8:30 a. m.

1:45 p.m. 

8:30 a. m. 

7:30 a. m. 

7:30 a. m. 

10:00 a. m.

8:00 a. m. 

7:25 a. m. 

5:55 p.m. 

7:05 a.m. 

7:05 a.m.

Discharge 

(secondfeet)

260 

550 

550 

a350 

a 400

a 500 

a 800 

a 800 

310 

472

664 

664 

315 

909 

671

580 

1,260 

265 

265 

255

783 

70 

325 

538 

538

Suspended sed

Concentration 

of sample 

(ppm)

1,640 

467 

467 

169 

2,580

4,320 

2,810 

2,810 

171 

3,600

4,430 

4,430 

1,840 

901 

3,800

728 

4,560 

3,180 

3,180 

1,900

7,080 

1,100 

995 

7,220 

7,220

Concentration 

of suspension 

analyzed 

(ppm)

1,130 

811 

1,020 

494 

2,110

3,920 

2,450 

1,480 

553 

2,710

3,720 

4,080 

1,530 

2,060 

3,030

2,140 

3,750 

3,150 

5,160 

1,590

5,860 

3,340 

3,060 

6,270 

7,230

Percent finer 

0.002

79 

9 

32 

82

27

1 

47

3 

73

57 

0

0.004

89 

16 

38 

90 

85

63 

4 

53 

42 

62

2 

58 

90 

33 

75

38 

51 

6 

80 

88

81 

94 

58 

71 

2

0.008

95 

29 

51 

94

46 

55

6 

67

26 

92

85 

8

0.016

98 

58 

74 

98

84 

54 

59 

78 

77

74 

74 

97 

45 

85

56 

78 

95

93

94 

99 

77 

93 

04

0

a Mean daily discharge.
YELLOWSTONE RIVER BASIN 149

YELLOWSTONE RIVER BASIN Continued 

SOUTH FORK POWDER RIVER NEAR KAYCEE, WYO.

LOCATION.--At gaging station, 600 feet upstream from bridge on U. S. Highway 87, li miles 

upstream from mouth of Murphy Creek, 6.6 miles southeast of Kaycee, Johnson County, 

and about 7 miles upstream from confluence with Middle Pork Powder River.

DRAINAGE AREA. 1,150 square miles.

RECORDS AVAILABLE.--Sediment records: May to September 1950.

EXTREMES, May to September 1950. Sediment concentrations: Maximum daily, 65,100 ppm

July 5; minimum daily, not determined.

Sediment loads: Maximum daily, 25,100 tons Sept. 21; minimum daily, less than 1 ton 

on many days in June, August, and September.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in 

Water-Supply Paper 1176.

Suspended sediment, May to September 1950

Day

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean

charge

(secondfeet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

May

Mean 

discharge 

(secondfeet)

-

96 

75 

57 

51

38 

40 

31 

31

57

42 

31 

29 

29 

29 

24

660

Suspended sediment

Mean 

concentration 

(ppm)

13,400 

6,170 

3,700 

1,990

1,580 

1,200 

650 

555 

2,070 

2,750 

1,550 

870 

850 

895 

850

Tons 

per 

day

3,460 

1,250 

569 

274

162 

130 

54 

46 

318

312 

130 

68 

67 

70 

55

6,980

June

Mean

charge 

(secondfeet)

22 

29 

27 

20 

19

19 

17 

20 

16 

14

12 

9.6 

11 

8.3 

6.2

13 

13 

16 

16 

15

12 

9.6 

7.0 

6.2 

5.3

6.2 

6.2 

7.0 

7.0 

8.3

397.9

Suspended sediment

Mean 

concentration 

(ppm)

620 

865 

520 

335 

260 

175 

876 

4,290 

1,390 

355

187 

128 

90 

75 

63

60 

49 

68 

140 

1,360

6,420 

7,520 

250 

143 

81

44

-

Tons 

per 

day

37 

68 

38 

18 

13

9 

s79 

232 

60 

13

6 

3 

3 

2 

1 

2 

2 

3 

6 

55

208 

195 

5 

2 

1

(t)

1,060

B Computed by subdividing day. 

t Less than 1 ton.
150 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

SOUTH FORK POWDER RIVER NEAR KAYCEE, WYO. Continued

Suspended sediment, May to September 1950 Continued

Day

3

20

90

24

25 

TotalJuly

Mean 

discharge 

(secondfeet)

7.0 

7.0 

8.3 

53 

66

22 

14 

14 

12 

15 

16 

33 

9.6 

5.3 

4.6

5.3 

5.3 

5.3 

5.3 

5.3

5.3 

11 

14 

19 

14

24 

16 

6.2 

5.3 

6.2 

8.3

442.6

Suspended sediment

Mean 

concentration 

(ppm)

40 

255 

172 

36,200 

65, 100

29, 900 

2,900 

485 

405 

620 

805 

45, 500 

2,300 

300 

200

155 

150 

120 

150 

148 

130 

390 

240 

845 

2,500

18, 500 

20,000 

445 

140 

120 

102

Tons 

per 

day

(t) 

5 

4 

sll.OOO 

12,000

1,780 

110 

18 

13 

25 

35 

s 5, 400 

60 

4 

2

2 

2 

2 

2 

2

2 

12 

9 

43 

94

82,670 

si, 280 

7 

2 

2 

2

34,590

August

Mean

charge 

(secondfeet)

8.3 

7.0 

6.2 

5.3 

5.3

4.6 

4.6 

5.3 

5.3 

9.6 

12 

7.0 

5.3 

3.9 

4.6

5.3 

9.6 

5.3 

4.6 

4.6

3.2 

2.2 

2.2 

2.7 

2.7

3.2 

2.7 

2.7 

2.7 

2.2 

2.2

152.4

Suspended sediment

Mean 

concentration 

(ppm)

96 

80 ! 

118 

131 

645 

162 

108

[ 93 

100

63 

91

Total discharge for period May 17 to Sept 30 (second-foot-days) 

Total load for period May 17 to Sept 30 (tons) .................

Tons 

per 

day

2 

2

1

2 

3 

21 

3 

2

1 

3

(t) 

(t)

56

September

Mean

charge 

(secondfeet)

2.7 

2.7 

2.2 

1.7 

1.7

2.2 

2.2 

2.2 

3.2 

6.2 

12 

9.6 

7.0 

9.6 

14

15 

8.3 

4.6 

3.9 

15

118

54 

40 

14 

9.6

7.0 

6.2 

7.0 

15 

20

416.8

Suspended sediment

J'^an 

concentration 

(ppm)

84

305 

2,200 

1,520 

275 

280 

5,320

590

390 

230 

9,500

63,300 

41,000 

12,100 

4,500 

2,250

650 

330 

420 

1,680 

2,520

Tons 

per

day

(t)

5 

71 

39 

5 

7 

s219

24 

e!3 

5 

2 

s489 

s 25, 100 

6,200 

1,310 

170 

58

12 

6 

8 

68 

136

33,950

. .. ...................... 2,069.7

.................................. 76,640

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.
YELLOWSTONE RIVER BASIN Continued 

SOUTH FORK POWDER RIVER NEAR KAYCEE, WYO. Conti

Particle-size analyses of suspended sediment, May to Septemb

(Methods of analysis: B, bottom withdrawal tube; O, decantation, P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

May 3, 1950 ..........

May 25 ...............

June 21 ..............

July 4 ................

July 5 ................

July 6 ................

July 25 ...............

July 26 ...............

July 27 ...............

Sept. 11 ..............

Sept. 15 ..............

Sept. 21 ..............

Sept. 30 ..............

Time

12:55 p.m. 

12:55 p.m. 

1:35 p.m. 

1:35 p.m. 

10:00 a. m.

5:45 p. m. 

9:45 a. m. 

10:45 a.m. 

5:15 p. m. 

5:45 p. m.

8:45 a. m. 

6:40 p.m. 

6:40 p.m. 

8:00 a. m. 

10:50 a.m.

7:45 a. m. 

5:30 p. m. 

3:44 p. m. 

3:44 p. m. 

1:45 p.m.

8:00 a. m. 

5:00 p. m. 

8:30 a. m. 

8:30 a.m. 

4:05 p.m.

4:05 p. m. 

5:00 p. m.

Discharge 

(secondfeet)

a 336 

a 336 

a 450 

a 450 

a 96

a 57 

a 29 

20 

12 

118

66 

16 

16 

38 

8.3

16 

75 

12 

112 

15

15 

17 

22 

152 

9.6

9.6 

19

Suspended sedim

Concentration 

of sample 

(ppm)

69,900 

69,900 

50,500 

50,500 

14, 000

2,560 

1,200 

3,360 

11, 100 

83, 400

68,400 

21,200 

21,200 

63,300 

1,200

6,220 

55, 300 

10, 900 

10,900 

3,290

1,290 

15,000 

5,300 

62, 800 

1,720

1,720 

2,460

Concentration 

of suspension 

analyzed 

(ppm)

58,100 

5,010 

39,700 

5,500 

4,590

2,100 

916 

2,720 

9,080 

8,920

7,460 

24,200 

3,440 

6,510 

890

4,980 

5,820 

11,000 

5,260 

2,470

1,070 

6,060 

4,300 

6,000 

2,010

2,130 

1,750

0.002

35 

29

12

68

78

0.004

0 

48 

0 

36 

64

76 

65 

67 

87 

63

72 

13 

86 

71 

78

88 

60 

0 

88 

84

69 

69 

68 

63 

0

90

75

Percent, finer 

0.008

71 

57 

5 

46

14 

95

4 

94

2 

93

0.016

74 

70 

61 

55 

83

90 

87 

91 

98 

93

97 

98 

98 

88

97 

88 

93 

97 

93

83 

92 

85 

90 

93

93 

93

0.

a Mean -HU? 'iechar??.

b 97 percent finer than 2.000 millimeters.
YELLOWSTONE RIVER BASIN Continued 

POWDER RIVER AT SUSSEX, WYO.

LOCATION. At county highway bridge, 100 feet upstream from gaging station at Sussex, Johnson County

DRAINAGE AREA. 3,090 square miles.

RECORDS AVAILABLE. Chemical analyses: September 1949 to September 1950.

Water temperatures: March to September 1950.

Sediment records: March to September 1950. 

EXTREMES, March to September 1950. Water temperatures: Maximum, 88°F Aug. 10.

Sediment concentrations: Maximum daily, 44,400 ppm Sept. 22; minimum dally, not determined.

Sediment loads: Maximum daily, 96,600 tons May 7; minimum daily, less than 1 ton on some days in 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply P

Chemical analyses, In parts per million, September 1949 to Septemb

Date of collection

Sept. 11, 1949 ....

Sept. 8 ...........

Discharge 

(secondfeet)

allS 

292

680 

310 

88 

13 

28

Temperature 

<°F)

PH

7.5 

7.8 

7.7 

7.5 

7.8 

7.7

7.8 

7.4 

7.2 

7.8 

7.7

Specific 

conductance 

(micromhos at 

25* C)

2,480 

1,500 

2,030 

1,830 

1,740 

1,990

2,600 

790 

3,510 

3,030 

3,880

Silica 

(Si02)

10 

14 

18 

22 

23 

23

13 

14 

15 

12 

11

Iron 

(Fe)

0.08 

.04 

.08

.02 

.10

.10 

.02 

.08 

.04 

.04

Calcium 

(Ca)

228 

127 

191 

282 

154 

144

160 

80 

259 

248 

321

Magnesium 

(Mg)

77 

60 

68 

83 

53 

49

47 

24 

87 

88 

109

Sodium 

(Na)

Potassium 

(K)

258 

152 

213 

48 

184 

241

373 

88 

490 

342 

487

Bicarbonate 

(HCO,)

198 

240 

288 

304 

218 

218

198 

181 

219 

228 

238

Sulfate 

(SO,)

980 

548 

758 

843 

645 

750

1,100 

255 

1,840 

1,190 

1,540

Chloride 

(Cl)

195 

87 

127 

102 

103 

84

87 

33 

118 

210 

327

a Mean daily discharge.
YELLOWSTONE RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

POWDER RIVER AT SUSSEX, WYO. Continued

Temperature (°F) of water, March to September 1950 

/Once-daily temperature measurement generally between 5 p. m. and 8 p. mj

153

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Average

Oct. Nov. Dec. Jan. Feb. Mar.

..

37

-

._

-

38

45

39

43

40

45

44

45

47

45

39

40

48

45

49

45

Apr.

50

45

44

40

56

64

60

55

52

52

41

50

57

53

50

53

39

48

46

47

37

45

50

..

May

50

50

39

43

50

54

41

46

52

55

58

58

65

59

58

59

54

50

55

62

65

55

48

50

55

62

50

80

55

60

54

June

51

52

63

68

73

55

54

60

66

74

75

73

72

70

64

64

70

76

75

74

60

65

70

72

75

70

74

67

July

70

70

84

80

75

74

73

74

70

82

67

68

77

73

66

70

72

70

74

82

77

76

70

63

65

73

Aug.

74

78

75

77

74

82

82

80

74

88

60

69

60

70

70

75

72

70

75

75

72

71

83

72

70

69

70

70

81

74

Sept.

75

78

70

70

70

75

68

57

64

59

57

80

62

65

68

68

52

65

65

65

62

62

63

65

58

44

50

~

64

Suspended sediment, March to September 1950

Day

1 ......

2 ......

3 ......

4 

5 ......

6 

7... ...

8 

g .

10 - 

11 ......

12 

13 

14 _ 

15 

16 ----- -

17 ......

18 -.. 

19 ......

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalJanuary

Mean 

discharge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

February

Mean 

discharge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

March

Mean 

discharge 

(secondfeet)

110

115

115

140

137

127

122

111

109

109

86

70

92

120

165

205

164

164

147

190

164

158

168

164

172

234

272

180

180

180

172

4,642

Suspended sedi-nent

Mean 

concentration 

(ppm)

3,620

5,000

4,810

4,600

3,350

2,500

3,000

3,450

1,880

1,940

5,090

6,780

8,540

5,120

8,670

8,030

8,340

5,700

7,670

5,980

6,480

5,080

3,540

3,290

2,510

2,180

Tons

el, 000

e 1, 000

1,120

1,890

1,780

1,580

1,100

749

883

1,020

e500

609

864

2,820

3,000

3,780

2,030

4,450

3,580

3,560

2,590

3,400

2,770

4,090

3,730

1,720

1,600

1,220

1,000

60,420
154 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

POWDER RIVER AT SUSSEX, WYO. Continued 

Suspended sediment, March to September 1950 Continued

Day

o

a

Ifi

1ft

21

23

24

25

no

27

40

29

30

Qf

Total2

0

12

18

21

91

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

164 

185 

254 

244 

244

301 

356 

292 

310 

500

428 

356 

225 

244 

332

470 

485 

575 

545 

428

301 

272 

356 

500 

470

332 

310 

292 

292 

292

10, 355

Suspended sediment

Mean 

concentration 

(ppm)

3,230 

2,820 

3,020 

4,350 

4,100

5,500 

12, 100 

9,400 

5,400 

17, 700

11,800 

10, 600 

7,200 

5,200 

4,850

13,100 

8,000 

7,100 

6,400 

5,200

5,200 

3,900 

4,300 

6,190 

2,700

1,750 

1,680 

2,260 

2,450 

3,300

Tons 

per 

day

1,430 

1,410 

2,070 

2,870 

2,700

4,470 

11,600 

7,410 

4,520 

825,400

13,600 

10,200 

4,380 

3,420 

4,350

16, 600 

10, 500 

11,000 

9,420 

6,000

4,220 

2,860 

4,140 

8,350 

3,420

1,570 

1,410 

1,780 

1,930 

2,600

185, 600

July

44 

96 

109 

127 

130

109 

71 

53 

53 

53

53 

97 

42 

32 

26

23 

20 

22 

22 

27

23 

19 

21 

24 

34

60 

51 

37 

21 

18 

19

1,536

15,700 

9,750

21,400

3,200 

800 

700

370 

44, 200 

38, 900 

7,000 

635

470 

310 

360 

490 

300

215 

280 

280 

280 

360 

7,400 

13,000 

17,100 

2,450 

600 

456

~

e9 

85,040 

2,870 

e5,000 

e7,200

6,300 

e2,800 

458 

115 

100 

53 

s 16, 500 

4,410 

605 

45

29 

17 

21 

29 

22

13 

14 

16 

18 

33 

1,200 

1,790 

1,710 

139 

29 

23

56,610

May

Mean

charge 

(second - 

feet)

392 

416 

560 

608 

485

608 

858 

946 

990 

1,060

1,040 

924 

792 

752 

836 

1,120 

1,400 

1,470 

1,560 

1,500

1,240 

1,040 

1,060 

1,040 

990

734 

545 

416 

380 

292 

332

26, 386

Suspended sediment

Mean 

concentration 

(ppm)

9,150 

10,200 

32,200 

23,800 

10,800

21,100 

40,200 

29,700 

18, 800 

31, 100

33,300 

23,000 

17, 100 

12, 400

13,800 

16, 200 

18, 400 

16,500 

12, 300

8,000 

7,300 

8,600 

8,400 

4,360

3,040 

2,450 

2,380 

3,320 

2,300 

2,650

Tons 

per 

day

9,680 

11,500 

s 55, 100 

39, 100 

14, 100

34,600 

96,600 

75,900 

50,200 

89,000

93,500 

57, 400 

36, 600 

25,200 

e28,000

41, 700 

61,200 

73,000 

69, 500 

49, 800

26, 800 

20, 500 

24,600 

23,600 

11,700

6,020 

3,600 

2,680 

3,410 

1,810 

2,380

1,139,000

August

14 

11 

18 

11 

9.7

6.8 

6.8 

5.9 

6.2 

9.7

11 

9.1 

23 

14 

It

10 

9.7 

9.1 

14 

9.7

7.9 

7.4 

5.3 

5.3 

5.3 

5.3 

6.2 

5.6 

5.9 

5.6 

5.3

284.8

240 

115 

225 

170 

165

350 

140 

428 

100 

80

55 

120 

2,180 

680 

95

105 

60 

105 

150 

100

58

Total discharge for period Mar. 1 to Sept. 30 (second-foot-days) 

Total load for period Mar. 1 to Sept 30 (tons) .................

9 

3 

11 

5 

4

6 

3 

7 

2 

2

2 

3 

8147 

26 

3

3 

2 

3 

6 

3

(t)

260

June

Mean

charge 

(secondfeet)

282 

320 

392 

234 

292

301 

282 

332 

272 

200

215 

220 

215 

200 

210

215 

210 

225 

225 

190

147 

130 

114 

106 

101

88 

80 

69 

65 

57

5,989

Suspended sediment

Mean 

concentration 

(ppm)

2,560 

2,450 

2,420 

1,820 

1,390

1,410 

2,880 

2,500 

1,470

1,530 

1,530 

1,270 

1,160

1,070 

965 

1,920 

16,200 

6,750

3, 220 

900 

252 

154 

167

142 

118 

92

77

~

Tons 

per 

day

1,950 

2,120 

2,560 

1,150 

1,100

el, 100 

1,070 

2,580 

1,840 

794

e800 

909 

889 

686 

658

621 

547 

1,170 

812,700 

3,460

1,280 

316 

78 

44 

46

34 

25 

17 

14

e!2

40, 570

September

5.0 

5.6 

5.9 

6.8 

5.9

8.5 

25 

24

27 

24

22 

22 

23 

24 

26

27 

29 

30 

32 

36

52 

75 

65 

65 

69

69 

69 

69 

75 

88

1,104.7

48

45 

54

350 

1,280 

1,000 

481 

600

2,850 

2,930 

1,450 

775 

620

5,780 

44, 400 

2C..600 

5,800 

2,200 

1.640 

806 

747 

920 

1.550

............................. 1

(t)

1 

e3 

3 

e22 

el9

21 

76 

62 

31 

42 

208 

230 

117 

67 

60

81,290 

9,320 

3,620 

1,020 

410

306 

150 

139 

186 

368

17,780

50,297.5 

, 500, 000

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.
YELLOWSTONE RIVER BASIN Continued 

POWDER RIVER AT SUSSEX, WYO. Continued

Particle-size analyses of suspended sediment, April to September 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection

Apr. 6, 1950 ............

May 3 ..................

July 14 .................

July 27 ................

July 27 .................

July 28 .................

Sept. 13 ...............

Sept. 22 ...............

Sept. 24 ...............

Sept. 26 ...............

Sept. 26 ...............

Time

9:30 a.m. 

6:00 p. m. 

5:30 p.m. 

9:30 a.m. 

8:50 a.m.

9:30 a.m. 

6:30 p. m. 

1:05 p.m. 

4:55 p.m. 

6:40 p.m.

6:40 p. m. 

2:05 p. m. 

7:20 p. m. 

7:00 p. m. 

12:00 m.

10:45 a.m. 

7:00 p. m. 

2: 50 p.m. 

9:00 a. m. 

1:50 p.m.

9:30 a.m. 

1:15 p.m. 

1:15 p.m. 

9:30 a.m. 

8:05 a. m. 

1:45 p. m.

3:30 p.m. 

12:30 p.m. 

9:45 a. m. 

8:30 a.m. 

1:35 p.m. 

1:35 p.m.

Discharge 

(secondfeet)

356 

368 

254 

590 

470

416 

645 

662 

1,090 

1,450

1,450 

a 1,040 

416 

254 

200

a 225 

130 

84 

180 

a 42

60 

50 

50 

29 

30 

a23

a 27 

30 

73 

67 

69 

69

Suspended sedim

Concentration 

of sample 

(ppm)

5,780 

14,800 

8,100 

22,400 

13, 200

10, 800 

49,600 

29,900 

32, 500 

19,400

19, 400 

9,510 

2,810 

1,640 

1,090

16,200 

18,400 

30,600 

79,800 

38, 900

7,740 

9,580 

9,580 

26,800 

3,320 

890

4,200 

4,030 

56, 600 

6,370 

1,670 

1,670

Concentration 

of suspension 

analyzed 

(ppm)

3,520 

10, 800 

5,290 

15, 300 

8,850

6,970 

9,400 

12, 500 

10, 900 

20, 000

9,940 

4,260 

1,370 

682 

832

3,050 

7,590 

6,230 

3,850 

5,650

5,660 

9,130 

7,650 

5,250 

2,530 

2,260

3,100 

2,830 

4,770 

4,020 

2,450 

2.320

Percent finer th

0.002

30 

15

42 

58

45 

49

0.004

53 

60 

53 

35 

37

34 

45 

41 

42 

1

20 

14 

12 

11 

12

59 

69 

80 

55 

78

78 

1 

64 

84 

73 

56

70 

61 

72 

82

56

0.008

50 

3 

26

72 

94

2 

84 

96

14 

67

0.016

72 

79 

68 

56 

56

51 

71 

64 

63 

31

35 

23 

19 

19 

22

84 

94 

98 

88 

98

94 

73 

92 

98

77

88 

75 

39 

94 

72 

74

0.03

a Mean daily discharge.
YELLOWSTONE RIVER BASIN Continued

POWDER RIVER AT ARVADA, WYO.

LOCATION.--At county highway bridge, 0.1 mile south of Arvada, Sheridan County, a quarter of a mile u

stream from gaging station at Arvada. 

DRAINAGE AREA.--6,050 square miles. 

RECORDS AVAILABLE. Chemical analyses: December 1949 to September 1950.

Water temperatures: March 1949 to September 1950.

Sediment records: April 1946 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum, 85°F July 27; minimum, freezing point on many days 

Sediment concentrations: Maximum daily, 46,700 ppm May 9; minimum daily, no flow on many days in 

Sediment loads: Maximum daily, 143,000 tons May 12; minimum daily, 0 tons on many days in August 

EXTREMES, 1946-50.--Sediment concentrations: Maximum daily, 97,200 ppm Sept. 1, 1949; minimum daily

Sediment loads: Maximum daily, 1,200,000 tons June 18, 1948; minimum daily, 0 tons on many days e

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply P

gaging station and sampling point except during periods of intense, local rainfall.

Chemical analyses, in parts per million', December 1949 to Septemb

Date of collection

Jan. 3, 1950 .......

May 15 ............

Sept. 28 ...........

Discharge 

(secondfeet)

a 30 

a 22

a45 

a 90 

282

482 

402 

110 

7.5 

21

Temperature 

(°F)

PH

8.0 

7.9 

.6 

.8 

.7

.6 

.7 

.3 

.6 

.2

Specific 

conductance 

(micromhos at 

25° C)

2,290 

2,650 

2,680 

1,560 

1,830

2,110 

1,020 

1,550 

2,320 

2,690

Silica 

(Si02 )

17 

25 

24 

20 

19

18 

14 

11 

12 

14

Iron 

(Fe)

0.04

.02 

.02 

.04

.10 

.04 

.04 

.02 

.02

Calcium 

(Ca)

214 

168 

235 

130 

159

182 

95 

173 

217 

244

Magnesium 

(Mg)

92 

108 

64 

45 

54

53 

28 

52 

112 

90

Sodlum 

(Na)

Potassium 

(K)

239 

362 

367 

172 

174

262 

90 

147 

209 

313

Bicarbonate 

(HCOS )

312 

416 

312 

180 

220

166 

160 

150 

244 

206

Sulfate 

(SO,)

975 

1,080 

1,160 

603 

675

1,010 

355 

760 

1,170 

1,330

Chloride 

(ci)

111

127 

124 

73

77

37 

31 

34 

24 

71

- Mean daily discharge.
YELLOWSTONE RIVER BASIN 157

YELLOWSTONE RIVER BASIN Continued 

POWDER RIVER AT ARVADA, WYO. Continued

Temperature (°F) of water, water year October 1949 to September 1950

/Once-daily temperature measurement between 7 a. m. and 9 a. m., except Jan. 4 to Feb. 17 and July when observations

were between 1 p. m. and 8 p. m. 7

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

Average

Oct.

52

48

50

46

48

42

43

35

40

43

36

34

42

38

--

44

40

43

31

31

32

32

33

34

39

34

39

38

41

35

34

39

Nov.

49

34

35

34

35

35

32

37

36

36

37

32

36

36

35

31

32

32

32

31

31

--

33

34

32

32

34

39

32

32

--

34

Dec.

31

32

32

31

31

32

32

32

31

32

_

_

_

_

--

--

--

a 32

Jan.

..

32

"

32

32

32

32

32

32

32

32

32

32

32

32

32

32

_

32

32

32

32

32

32

32

32

32

a 32

Feb.

32

32

__

32

32

32

32

32

32

32

32

32

--

__

33

34

33

33

33

33

33

34

33

33

34

32

..

--

a 32

Mar.

32

32

32

--

33

33

32

32

32

32

32

32

32

32

32

32

32

32

33

32

32

32

32

32

32

32

32

32

32

34

32

Apr.

33

36

34

32

32

34

40

--

34

31

38

40

41

45

47

48

50

37

41

31

42

45

40

35

33

39

37

38

32

38

--

38

May

39

43

38

36

37

41

40

38

42

45

47

51

55

55

59

58

57

56

48

50

55

58

60

52

50

52

51

55

51

54

51

49

June

52

52

47

57

69

62

54

46

49

52

61

65

68

66

65

75

62

57

61

61

65

66

63

63

62

57

62

62

-_

_.

60

July

..

72

70

74

76

70

79

76

73

76

74

73

70

65

68

72

79

79

81

74

79

73

75

71

85

83

65

66

69

74

Aug.

..

--

_.

--

--

_

63

63

62

-

__

56

57

58

62

"

_

_

._

._

--

"

Sept.

_.

--

_

-.

..

_

_.

--

_

..

-_

-.

--

62

50

42

43

38

--

--

a Includes estimated temperature, 32°F, on missing days.
158 MISSOURI RIVER BASIN 

YELLOWSTONE RIVER _BASIN Continued 

POWDER RIVER AT ARVADA, WYO. Cont inued 

Suspended sediment, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5 

7 - 

&...._.

9 

10 

11 

12- 

13 

14 

15 

16 - 

17 

1 10------ fi

10lo---- 

20 

21 

22 ------

go«0----~-

24 ------

gc«0------

26------

97A I ------

noiO------

9Qay------ 

30 

31 

Total1 

2 

3......

4 

5 

6------

7 

------

9 -.-__..

10 

11 

191« ------

13 

14 

15 

16 

17 

1 IB------ fi

19 

20 

21 

22 

23 

24 

25- 

26 

27 

28 

29 

30 

31 

Total

October

Mean

discharge 

(secondfeet)

13 

16 

18 

17 

21

23 

27 

41

52 

71

116 

145 

148 

119 

102

90 

82 

82 

82 

90

92 

119 

128 

138 

159 

152 

134 

119 

131 

141 

138

2,806

Suspended sediment

Mean 

concentration 

(ppm)

288 

411 

428 

362 

900

1,430 

1,940 

2,630 

4,100 

6,800

14, 900 

19, 200 

22, 500 

19, 500 

14,900

10, 700 

9,400 

8,150 

8,250 

8,870

6,800 

11,100 

10,000 

8,140 

9,560

8,780 

9,200 

8,440 

7,480 

7,620 

7,620

--

January

29 

25 

22 

20 

20

21 

23 

24 

25 

25

37 

25 

24 

23 

22 

23 

24 

28 

28 

32

50 

48 

46 

35 

25 

32 

40 

40 

30 

30 

32

908

166 

154 

177

310 

292 

280 

268 

245

300 

482 

288 

343 

317 

323 

353 

427 

410 

379

364 

358 

359 

381 

337 

338 

319 

360 

354 

429 

497

--

Tons 

per 

day

10 

18 

21 

17 

51

89 

141 

291 

576 

1,300

4,670 

7,420 

9,000 

6,260 

4,100

2,600 

2,080 

1,810 

1,830 

2,150

1,690 

3,560 

3,460 

3,030 

4,110

3,600 

3,330 

2,710 

2,640 

2,900 

2,840

78,400

e9 

e9 

10 

8 

10

18 

18 

18 

18 

17

30 

33 

19 

21 

19 

20 

23 

32 

31 

33

49 

46 

45 

36 

23

29 

34 

39 

29 

35 

43

804

November

Mean

discharge 

'secondfeet)

119 

104 

104 

113 

116

119 

138 

156 

166 

170

166 

145 

131 

156 

138

80 

47 

52 

41 

36

34 

35 

40 

40 

39

39 

39 

41 

39 

37

2,680

Suspended sediment

Mean 

concentration 

(ppm)

6,580 

6,550 

6,210 

6,190 

5,790

5,720 

5,210 

6,410 

5,780 

5,610

6,410 

5,660 

5,580 

6,100 

5,190

4,610 

6,260 

5,710 

5,600 

5,600

5,090 

3,700 

4,810 

6,580 

6,180 

7,220 

7,000 

6,070 

5,590 

4,130

--

February

35 

38 

41 

43 

45

45 

45 

43 

45 

50

60 

54 

50 

56 

60 

66 

80 

75 

75 

76 

75 

80 

90 

90 

90 

90 

88 

85

1,770

412 

368 

420 

390 

400

377 

369 

391 

382 

331 

353 

343 

320 

329 

345 

400 

540 

728 

620 

680

645 

730 

1,390 

2,220 

2,200

2,120 

2,010 

1,660

Tons 

per 

day

2,140 

1,840 

1,740 

1,890 

1,810

1,840 

1,940 

2,700 

2,590 

2,580

2,880 

2,220 

1,970 

2,570 

1,930

995 

795 

803 

620 

544

467 

350 

520 

710 

650

760 

737 

672 

589 

412

42, 260

39 

38 

46 

45 

49

46 

45 

45 

46 

45 

57 

50 

43 

50 

56 

71 

117 

147 

126 

140

131 

158 

338 

540 

535

515 

477 

381

4,380

December

Mean

discharge 

'second - 

feet)

35 

36 

36 

32 

32

33 

30 

32 

25 

20

16 

12 

10 

12 

14

16 

15 

14 

14 

14

16 

18 

22 

21 

20

26 

26 

26 

25 

35 

30

713

Suspended sediment

Mean 

concentration 

(ppm)

4,910 

3,580 

2,720 

1,550 

550

320 

450 

350 

210 

170

-

Tons 

per 

day

464 

348 

264 

134 

48

29 

36 

30 

14 

9

e9

1,600

March

80 

90 

105 

120 

120

120 

120 

110 

110 

110

95 

80 

110 

150 

225 

340 

290 

290 

280 

330

300 

310 

320 

310 

330

330 

320 

325 

340 

370 

330

6,860

2,560 

2,040 

2,790 

2,290 

2,860

4,240 

2,190 

1,980 

950 

505

600 

695 

745 

1,000 

1,120 

1,060 

1,460 

1,510 

1,260 

1,400

3,910 

11,600 

9,000 

6,910 

5,400

5,810 

2,590 

7,400 

11,200 

11,600 

13,200

-

553 

496 

790 

742 

926

1,370 

710 

582 

282 

150 

154 

150 

221 

405 

680 

973 

1,140 

1,180 

953 

1,250

3,160 

8,870 

7,780 

5,790 

4,810

5,180 

2,240 

6,490 

10, 300 

11,600 

11,800

91,730
YELLOWSTONE RIVER BASIN 

YELLOWSTONE RIVER BASIN Continued 

POWDER RIVER AT ARVADA, WYO. Continued 

Suspended sediment, water year October 1949 to September 1950--Continued

159

Day

19

on

91

99

94

no

9Q

4f|

31 

Total15 ......

21 ...... 

22 ------ 

23 ------ 

24 ------ 

25 

26 . 

27 

28 ------ 

29 

30 ...... si ......

Total

April

Mean

charge 

(secondfeet)

300 

264 

294 

264

247

258 

282 

288 

330 

346

330 

482 

500 

455 

362 

338 

394 

437 

455 

473

482 

446 

410 

378 

370

410 

460 

460 

430 

390

11,335

52 

52 

110 

148 

128

131 

97 

102 

82 

62

50

48 

35 

27 

24

50 

65 

355 

110 

50

38 

22 

14 

16 

16 

15 

6.0 

22 

17 

15 

8.5

1,967.5

Suspended sediment

Mean 

concentration 

(ppm)

11, 300 

12,000 

11,100 

10, 900 

13, 100

12,400 

12,000 

11,600 

13,900 

14,700

16, 300 

21,700 

20,700 

15,000 

12,700 

14, 800 

15,500 

14, 900 

15,900 

17,800

15,600 

10,800 

7,920 

7,810 

9,800 

11,300 

8,850 

7,000 

7,560 

7,460

--

Tons 

per 

day

9,150 

8,550 

8,810 

7,770 

8,740

8,640 

9,140 

9,030 

12, 400 

13,700

14, 500 

28, 200 

28,000 

18,400 

12,400 

13, 500 

16, 500 

17,600 

19, 500 

22,700

20, 300 

13,000 

8,760 

7,980 

9,790 

12, 500 

11,000 

8,690 

8,780 

7,850

395, 900

July

1,200 

1,210 

6,850 

10, 200 

5,580

4,100 

4,090 

3,140 

2,910 

2,800

4,070 

4,200 

2,400 

1,510 

530 

1,700 

1,790 

29, 300 

34,000 

11,400

2,400 

825 

920 

1,780 

1,630 

952 

441 

1,490 

800 

485 

350

--

168 

170 

s3,430 

4,070 

1,930

1,450 

1,070 

864 

645 

469

550 

544 

227 

110 

34

230 

314 

s 50, 400 

11,600 

1,540 

246 

49 

35 

s!28 

70 

39 

7 

s!16 

37 

20 

8

80, 570

Total discharge for year (second-foot day 

Total load for year (tons) .............

May

Mean

charge 

(secondfeet)

380 

380 

430 

500 

530

510 

646 

1,210 

1,060 

898

1,110 

1,240 

946 

634 

482 

500 

958 

1,480 

1,580 

1,820

1,510 

1,090 

754 

886 

1,280

1,170 

826 

634 

555 

566 

599

27,164

Suspended sediment

Mean 

concentration 

(ppm)

7,570 

6,270 

9/230 

12,000 

22,000

25,000 

26, 500 

35,800 

46,700 

41,000

41,000 

41,300 

35, 200 

25,500 

22, 800 

20, 300 

25,000 

30, 200 

31,200 

28,000

19,800 

14,100 

12,300 

20,900 

20,300

15,700 

10,800 

9,400 

 8,780 

8,250 

8,110

Tons 

per

day

7,770 

6,440 

10,700 

16, 200 

31, 500

34,400 

46,200 

121,000 

139,000 

103,000

127,000 

143,000 

93,200 

43, 600 

'9,700 

27,400 

64,600 

121,000 

133,000 

138,000

80,700 

41,500 

25,000 

50,000 

70, 100 

49,600 

24,100 

16,100 

13,200 

12,600 

13,100

1,833,000

August

4.6 

2.8 

6.0 

1.6 

.4

0 

0 

0 

0 

0 

14 

98 

39 

39 

26

14 

3.5 

.3 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

249.2

225 

109 

100

1,800 

45,000 

38,700 

37,600 

10,600

180 

150

--

e3 

el

4

(t) 

<t)

0 

0 

0 

0 

0

s247 

s 16, 000 

4,230 

4,100 

744

e32 

2 

(t) 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

25,360

June

Mean

charge

(second - 

feet)

482 

482 

437 

419 

464

402 

410 

482 

500 

544

464 

386 

394 

386 

402 

318 

324 

362 

312 

300

312 

300 

195 

141 

141

113 

99 

97 

76 

62

9,806

Suspended sediment

Mean 

concentration 

(ppm)

9,100 

6,600 

6,220 

8,770 

10,200

5,720 

6,240 

6,590 

7,980 

9,400

6,110 

5,690 

5,020 

5,290 

5,340 

7,630 

12,800 

6,800 

5,730 

5,250

5,350 

6,210 

4,870 

4,550 

4,790

4,000 

2,520 

1,700 

1,800 

1,210

Ton^s 

per 

day

11,800 

8,600 

7,350 

9,920 

11, 800

6,200 

6,910 

8,570 

11, 800 

is 800

7,660 

5,930 

5,340 

5,510 

5,800 

6,550 

T.200 

6,650 

4,820 

4,250

4,510 

5,030 

2,560 

1,730 

1,820

1,220 

674 

445 

369 

202

17(1.000

September

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

12 

23 

20 

21 

27 

38

141

1,100 

2,400 

20, 600 

30,600 

15,000 

7,380

~

s) ....................................................

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

s74 

149 

1,110 

1,730 

1,090 

756

4,910

66, 399. 7 

2,738,000

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.
YELLOWSTONE RIVER BASIN Continued 

POWDER RIVER AT ARVADA, WYO. Continued

Particle-size analyses of suspended sediment, water year October 1949 to 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Oct. 4 1949 ............

Oct. 31 ...............

Oct. 31 ...............

Nov. 2 ................

Nov. 4 ................

Nov. 17 ...............

Nov. 17 ...............

Nov. 18 ...............

Feb. 21 ...............

Feb. 27 ...............

Mar. 1 ...............

Mar. 13 ...............

Mar. 23 ...............

Apr. 20 ...............

Apr. 25 ...............

Apr. 25 ...............

May 9- ................

May 10 ...............

May 18 ...............

May 25 ...............

June 6 ................

a Mean daily discharge.

Time

2:13 p. m. 

12:50 p. m. 

12:50 p. m. 

11:20 .m. 

11:20 .m.

10:53 .m. 

10:53 .m. 

7:30 .m. 

10:20 .m. 

10:20 . m.

7:30 a.m. 

2:20 p. m. 

4:40 p. m. 

5:10 p.m. 

4:45 p.m.

9:10 a.m. 

4.15 p. m. 

1:55 p.m. 

6:05 p.m. 

2:10 p.m.

2:10 p.m. 

5:10 p.m. 

5:10 p.m. 

5:30 p.m. 

1:50 p.m.

5:35 p.m. 

1:00 p. m. 

1:00 p.m. 

2:50 p. m. 

7:50 a.m.

Discharge 

(secondfeet)

16 

82 

82 

148 

148

85 

85 

119 

62 

62

65 

a 43 

a75 

a 88 

a 80

a 110 

a 320 

247 

270 

491

491 

370 

370 

983 

874

1,370 

1,320 

1,320 

410 

566

Suspended .sedim

Concentration 

of sample 

(ppm)

355 

7,560 

7,560 

8,320 

8,320

8,160 

8,160 

6,190 

6,340 

6,340

5,780 

402 

946 

3,540 

3,060

678 

8,350 

14,700 

13,600 

19,700

19,700 

13,500 

13,500 

44, 500 

41,100

26,500 

19,000 

19,000 

5,410 

9,420

Concentration 

of suspension 

analyzed 

(ppm)

526 

1,320 

1,400 

1,770 

1,730

1,730 

1,760 

2,400 

2,110 

2,920

2,390 

325 

611 

2,610 

2,580

527 

1,740 

18, 000 

9,170 

15,000

9,120 

10, 300 

4,780 

7,420 

7,440

8,100 

13,700 

6,510 

6,280 

4,970

Percent finer 

0.002

27 

1 

45 

2 

20

23 

29

22

18 

49 

26 

19 

14

28 

19

20

22

17

0.004

56 

4 

62 

6 

34

4 

32 

39 

1 

25

29 

70 

36 

22 

18

32 

27 

23 

30

30

24 

43 

39

28 

1 

22 

21 

18

0.008

79 

19 

79 

14 

46

14 

44 

54 

13 

38

41 

76 

47 

33 

27

43 

38

2

4 

31

34 

2

27

0.016

87 

87 

56

54 

63 

60 

66

50 

79 

60 

44 

38

55 

54 

43 

50 

41

46 

36 

41 

64 

58

45 

34 

35 

32

0.0
June 13 .................

July 5 ..................

July 12 .................

July 19 .................

July 26 .................

Sept. 26 ................

Sept. 27 ................

Sept. 28 ................

Sept. 28 ................

Sept. 29 ................

Sept. 30 ................

4:15 p. m.

10:25 a. m.

8:30 a. m.

370

276

82

110

110

45

87

19

31

54

41

25

25

22

20

22

22

25

38

4,940

6,060

2,260

5,200

5,200

4,370

33,700

951

49,900

35, 200

41,400

6,770

6,770

2,280

24,900

29, 500

29, 500

18,200

8,740

4,760

3,140

857

4,460

3,970

10, 100

2,520

2,660

4,640

12,400

8,290

7,230

5,420

1,810

5,160

6,440

30, 200

7,720

4,620

_____

48

63

36__

61_

71__

--

23

15

143

71

87

79

47

69

57

68

86

80

89

934

89

62

..

..

..7

77

94

60

.._2

97_

99

82_

34

21

20

74

80

96

96

68

94

90

94

52

98

95

97

93

98

74
YELLOWSTONE RIVER BASIN Continued 

POWDER RIVER NEAR LOCATE, MONT.

LOCATION. At gaging station at bridge on U. 8. Highway 12, 3 miles upstream from Locate Creek, 5 m

25 miles east of Miles City. 

RECORDS AVAILABLE. Chemical analyses: December 1949 to September 1950.

Sediment records: March to September 1950. 

EXTREMES, March to September 1950. Sediment concentrations: Maximum daily, 35,600 ppm May 11; min

Sediment loads: Maximum daily, 218,000 tons May 11; minimum daily, less than 1 ton on some days 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply 

Chemical analyses, in parts per million, December 1949 to Septemb

Date of collection

T\A., c i Q4Q

Sept 4

Discharge 

(secondfeet)

112 

50 

1,560 

1,050 

1,620

870 

1,050 

246 

276 

90 

6.0

Temperature 

(°F)

PH

7.7 

7.5 

7.7 

7.7 

7.7

8.0 

7.6 

7.6 

7.5 

7.6 

7.5

Specific 

conductance 

(micromhos at 

25" C)

1,900 

949 

891 

1,120 

1,610

856 

767 

1,220 

1,430 

1,930 

2,220

Silica 

(SiO.)

13 

12 

21 

14 

14

16 

13 

17 

12 

17 

18

Iron 

(Fe)

0.10 

.10 

.20 

.10

.04 

.04 

.04 

.02 

.02 

.02

Calcium 

(Ca)

168 

80 

69 

72 

116

75 

68 

103 

113 

155 

155

Magnesium 

(Mg)

75 

28 

23 

25 

41

24 

21 

30 

40 

62 

63

Sodium 

(Na)

Potassium 

(K)

183 

100 

96 

147 

214

80 

72 

147 

149 

213 

307

Bicarbonate 

(HCOS )

300 

156 

170 

204 

208

156 

140 

199 

208 

234 

271

Sulfate 

(SOJ

775 

357 

305 

388 

680

295 

265 

485 

540 

835 

1,000

Chlo

ride 

(Cl)
YELLOWSTONE RIVER BASIN 163

YELLOWSTONE RIVER-BASIN Continued

POWDER RIVER NEAR LOCATE, MONT. Continued

Suspended sediment, March to September 1950

Day

2

g

12

13

Ifi

21

22

 ,

24

9ft

29

Total13

1 ft

21 

22 

23 

24 

25 ......

26 

27 

28 

29 ----- 

30 

31 

TotalJanuary

Mean

charge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

April

1,000 

2,000 

3,000 

2,800 

2,390

1,630 

2,040 

1,920 

1,240 

990

1,030 

1,000 

1,000 

1,060 

1,050 

1,000 

965 

829 

769 

781

769 

757 

817 

1,150 

1,080

1,030 

673 

781 

817 

709

37,077

11,400 

21,200 

15,500 

11,000 

9,700

10, 100 

14, 400 

12,700 

8,200 

5,350 

5,670 

6,280 

7,210 

7,280 

7,900 

9,600 

9,150 

8,150 

7,190 

7,280

5,980 

6,580 

7,430 

14,300 

15,000

15,200 

6,100 

10,300 

10,500 

9,450

30,800 

114,000 

126,000 

83, 100 

62,600

44,500 

79,300 

65, 800 

27, 500 

14,300

15, 700 

17,000 

19,500 

20,800 

22,400 

25,900 

23,800 

18,200 

14,900 

15,400 

12,400 

13,500 

16,400 

44,400 

43, 800

42,300 

11,100 

21,700 

23, 200 

18, 100

1,088,000

February

Mean

charge 

(second - 

feet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

May

829 

1,000 

853 

920 

1,000

1,100 

1,370 

1,510 

1,510 

1,760

2,190

1^900 

1,720 

1,420 

1,140 

1,020 

1,020 

1,270 

1,770 

2,010 

2,150 

1,790 

1,510 

1,300

1,540 

1,830 

1,760 

1,380 

1,130 

1,140

44,862

12,400 

11,600 

8,650

9' 800

9,200 

10,100 

11,900 

13, 300

35,600 

34, 700 

33, 100 

24,300 

25, 000 

23, 100 

20, 200 

20,400 

19, 700 

25,700

32,500 

25, 100 

23,000 

17,700 

15,100

15,200 

17,200 

14,600 

12,000 

9,100 

7,300

27,800 

31,300 

19,900 

21,000 

26,500

27,300 

37,400 

48,500 

54,200 

99, 300

218,000 

189,000 

170, 000 

113,000 

95,800 

71, 100 

55,600 

56,200 

67,600 

123, 000 

176,000 

146, 000 

111,000 

72,200 

53,000

63, 200 

85,000 

69,400 

44,700 

27,800 

22,500

2,423,000

March

Mean

charge 

(second - 

feet)

25 

35 

50 

100 

120

110 

75 

60 

50 

40

35 

30 

35 

40 

50

60 

55 

50 

50 

55 

65 

75 

100 

150 

140

130 

120 

110 

120 

150 

200

2,485

Suspended sediment

Mean 

concentration 

(ppm)

1,030 

2,420 

4,220

4,000

1,170 

610

290

140 

105 

370 

1,700 

3,900 

1,800

1,290 

900 

1,560 

2,410 

4,040 

7,610

Tons 

per 

dsy

e!4 

e55 

139 

654 

1,370

1,190 

e600 

e320 

158 

66

27

e24

21 

18 

75

1,580 

681

453 

292 

464 

780 

1,640 

4,110

H, 360

June

1,080 

1,070 

992 

956 

932

870 

850 

1,000 

1,280 

1,590

1,560 

1,310 

1,180 

1,090 

1,400 

1,380 

1,120 

1,040 

968 

1,030

1,080 

980 

900 

870 

910

1,030 

790 

800 

790 

630

31,478

6,500 

5,960 

5,280 

5,400 

5,390

4,600 

5,410 

6,200

10, eoa

12, 600

11,900 

8,400 

8,350 

9,100 

14,100 

10,900 

5,550 

8,310 

6,900 

5,300

5,100 

4,780 

4,020 

3,750 

8,400

8,150 

4,320 

6,000 

5,200 

3,920

-

11,000

17,200 

1» 100 

13, 900 

13,600

11, 800 

13,400 

13,700 

31 600 

54.100

51, 100 

2"> 700 

2" 600 

2* 800 

5-< 300 

41,600 

13,800 

2? 300 

13,000 

14,700

14.900 

13,700 

9,770 

8,810 

21,600 

2'., 700 

9,210 

13,000 

11, 100 

6,670

637, 800
164 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

POWDER RIVER HEAR LOCATE, MONT. Continued 

Suspended sediment, March to September 1950 Continued

Day

g

12

in

19

23

nrj

31 ______

TotalJuly

Mean

charge 

(secondfeet)

504 

442 

360 

288 

258

228 

322 

477 

435 

420

558 

360 

315 

276 

258

258 

288 

258 

288 

315

360 

352 

375 

300 

240 

204 

170 

130 

106 

87 

84

9,316

Suspended sediment

Mean 

concentration 

(ppm)

2,000. 

1,950 

800 

470 

400

280 

1,050 

1,400 

1,660 

1,390

12,900 

4,500 

1,310 

830 

530

800 

1,610 

2,000 

1,280 

1,830

2,030 

2,290 

2,910 

1,590 

1,500 

2,980 

2,310 

1,150 

775 

530 

380

Tons 

per 

day

2,720 

2,330 

778 

366 

279

172 

si, 280 

1,800 

1,950 

1,580

s 22, 500 

4,370 

1,110 

619 

369

557 

1,250 

1,390 

995 

1,560

1,970 

2,180 

2,940 

1,290 

972

1,640 

1,060 

404 

222 

125 

86

60, 860

August

Mean

charge 

(second - 

feet)

78 

87 

72 

58 

55 

45 

32 

25 

20 

17

122 

294 

282 

175 

63

140 

330 

264 

170 

114

84 

75 

60 

50 

40

35 

35 

33 

33 

30 

28

2,946

Suspended sediment

Mean 

concentration 

(ppm)

430 

492 

341 

241 

235

178 

138 

100 

114 

78

12,000 

16,500 

20,200 

13,200 

7,900

12, 400 

13,200 

13,300 

12, 300 

6,250

5,320 

4,880 

3,060 

1,800 

920 

605 

508 

560 

325 

219 

151

Total discharge for period Mar. 1 to Sept. 30 (second-foot-days) 

Total load for period Mar. 1 to Sept. 30 (tons) . ................

Tons 

per 

day

91 

116 

66 

38 

35

22 

12 

7 

6 

4

5 10, 700 

13,100 

15,400 

6,240 

1,340

4,690 

11,800 

9,480 

5,650 

1,920

1,210 

988 

496 

243 

99 

57 

48 

50 

29 

18 

11

83, 970

September

Mean

charge 

(secondfeet)

25 

21 

16 

10 

9.0

7.6 

7.2 

5.6 

3.4 

5.6

4.8 

5.6 

7.2 

7.2 

8.0

14 

12 

9.0 

10 

9.0

12

25 

58 

72 

75

75 

75 

75 

75 

98

837.2

Suspended sediment

N'ean 

coicentration 

(jrom)

120

82 

91 

125 

70

68 

88

51

110 

238 

175

30

370 

425 

520 

560 

442

420 

430 

368 

375 

585

--

Tons 

per 

day

8 

5 

4 

3 

2

. 1 

2

(t)

2

5 

4

(t)

12 

29 

81 

109 

90

85 

87 

74 

76 

155

842

129,001.2 

4,310,000

a Computed by subdividing day. 

t Less than 1 ton.
YELLOWSTONE RIVER BASIN Continued 

POWDER RIVER NEAR LOCATE, MONT. Continued

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Mar. 3, 1950 ..........

May 11 ................

July 11 ................

July 13 ....,.., .......

Time

10:30 a.m. 

10:30 a.m. 

4:35 p.m. 

4:45 p.m. 

6:10 a.m.

12:35 p.m. 

12:35 p.m. 

10:25 a.m. 

6:15 a.m. 

6:45 p.m.

6:45 p.m. 

9:15 a.m. 

8:15 a.m. 

8:15 a.m. 

9:00 a.m.

9:30 a.m. 

10:30 a.m. 

8:20 a.m. 

8:20 a.m. 

6: 55 p . m .

6: 55 p . m . 

5:45 p m. 

9:00 a.m. 

5:45 p.m. 

5:15 p.m.

5:35 p.m. 

5:40 a.m. 

5:SO a.m.

Discharge 

(secondfeet)

a 50 

a 50 

a 150 

a 200 

a 3, 000

2,230 

2,230 

1,740 

1,040 

745

745 

1,060 

1,040 

1,040 

1,590

2,020 

1,120 

1,030 

1,030 

1,040

1,040 

1,070 

1,570 

1,070 

450

513 

398

Suspended sedi

Concentration 

of sample 

(ppm)

777 

777 

9,440 

8,540 

15, 500

9,960 

9,960 

12,200 

9,320 

8,000

8,000 

16, 300 

11,900 

11,900 

18,000

33, 200 

23, 200 

17,200 

17,200 

5,850

5,850 

8,280 

16,600 

11,400 

1,230

15, 400 

6,210 

1,59,0

Concentration 

of suspension 

analyzed 

(ppm)

1,170 

1,130 

4,870 

5,460 

9,410

3,280 

6,860 

8,760 

6,220 

8,890

4,690 

4,540 

6,720 

11,300 

3,270

7,710 

7,080 

14,600 

3,350 

5,420

3,470 

4,040 

5,570 

4,310 

737

11,800 

2,960 

948

Percent finer 

0.002

17

5 

25

15

47 

42

51 

33

47 

56

0.004

17 

21 

33 

38 

42

8 

34 

41 

57 

16

61 

51 

52 

1 

30

31 

46

67 

6

40 

33 

37 

24 

54

73 

66 

67

0.008

27 

25

20 

47

18 

76

63 

4

1

77 

15

46 

60 

75

0.016

30 

32 

43 

53 

58

59 

60 

73

84 

71 

74 

76 

42

46 

65 

84 

86 

49

52 

45 

51 

34 

64

93 

71 

80

0

a Mean daily discharge.
YELLOWSTONE RIVER BASIN -Continued 

POWDER RIVER NEAR LOCATE, MONT.--Continued

Particle-size analyses of suspended sediment, March to August 1950 C

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Aug. 22 ..............

Time

7:25 p.m. 

7:25 p.m. 

5:50 a.m. 

5:35 a.m. 

6:05 p.m.

5:55 p.m. 

6:05 a.m. 

6:55 p.m. 

6:55 p.m. 

3:30 p.m. 

6:30 p.m.

Discharge 

(secondfeet)

288 

288 

270 

360 

192

294 

294 

116 

116 

282 

63

Suspended sedim

Concentration 

of sample 

(ppin)

2,560 

2,560 

3,520 

3,200 

3,230

22, 800 

23, 400 

12,000 

12, 000 

16, 200 

4,910

Concentration 

of suspension 

analyzed 

(ppm)

2,010 

2,430 

2,450 

2,260 

2,220

4,640 

8,410 

12, 600 

2,370 

6,580 

3,960

Percent finer 

0.002

71 

3

0.004

4 

76 

71 

92

74 

76 

3 

92 

73 

93

0.008

80 

11

97

0.016

84

88 

75 

95

91

97

98 

93 

96

0.
YELLOWSTONE RIVER BASIN 167

YELLOWSTONE RIVER BASIN Continued 

MIDDLE FORK POWDER RIVER ABOVE KAYCEE, WYO.

LOCATION. At gaging station, 2 miles upstream from Red Fork, 2 miles downstream from

Beaver Creek, and about 10 miles southwest of Kaycee, Johnson County. 

DRAINAGE AREA. 450 square miles. 

RECORDS AVAILABLE. Water temperatures: June 1949 to September 1950.

Sediment records: April 1949 to September 1950.

EXTREMES, 1949-50. Water temperatures: Minimum, freezing point on many days during 

November to April. 

Sediment concentrations: Maximum daily, 8,710 ppm May 15; minimum daily, not

determined.

Sediment loads: Maximum daily, 15,100 tons May 18; minimum daily, less than 1 ton 

Aug. 26-30. 

EXTREMES, April 1949 to September 1950. Sediment concentrations: Maximum daily,

24,000 ppm June 9, 1949; minimum daily, not determined. 

Sediment loads: Maximum daily, 18,700 tons June 9, 1949; minimum daily, less ttan 1

ton Aug. 26-30, 1950.

REMARKS. Records of discharge for water year October 1949 to September 1950 giver in 

Water-Supply Paper 1176.

Temperature (°F) of water, water year October 1949 to September 1950 

/Once -daily temperature measurement at approximately 9 a. m. Oct. Ito July 23, between 3 p. tn. and 7 p. m.thereafter/

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

Avernirp

Oct.

_

49

48

48

46

-.

--

45

45 

44

44

47

"

_

42

44

38

33

._

43

46

42

41

..

44

--

--

Nov.

_

39

44

__

42

--

42

42

38

39

35

37

38

38

36

32

33

37

--

_

..

_

34

33

Dec.

33

34

34

33

32

32

32

31

32

32

..

_

--

._

._

--

_

._

..

--

._

..

_

-.

--

--

332

Jan.

_

..

._

..

__

--

--

--

32

32

_.

32

.-

32

--

33

.-

33

..

32

_

32

_

32

32

332

Feb.

32

32

32

32

_

32

--

32

32

..

32

__

32

32

--

32

..

32

..

32

_

32

..

--

--

--

a 32

Mar.

_

_

34

31

_-

--

--

..

_

--

34

._

44

_

36

..

36

--

42

32

34

32

34

--

Apr.

37

32

51

44

43

42

40 

41

43

45

46

._

..

40

38

-

51

__

--

._

_

_

.-

--

May

_

44

..

--

"

48

_

..

"

48

--

--

_-

._

--

_-

--

__

..

--

--

--

June

..

54

--

._

69

--

__

_-

--

.-

--

_.

.-

--

--

--

July

._

--

60

--

-_

--

--

59

60

70

60

70

62

57

70

73

72

60

67

70

72

74

73

66

65

68

Aug.

71

72

71

70

62

71

7561!

68

64 

65

63

69

72

62

69

63

61

63

68

60

-.

63

6rJ

69

6>

6'

--

6r>

67

Sept.

70

63

65

68

65

64

51 

46

52

47

48

..

55

61

60

57

53

55

--

56

56

49

50

44

--

--

a Includes estimated temperature 32°F on missing days.

3Z6665 O - 55 - 1Z
MISSOURI RIVER BASIN 

YELLOWSTONE RIVER BASIN Continued

MIDDLE FORK POWDER RIVER ABOVE KAYCEE, WYO. Continued 

Suspended sediment, water year October 1949 to September 1950

Day

1 

2 

3 ...... 

4 .

g ... ...

6 

7... 

8--- ---

9______

10 

11 ......

12 

13------

14 ......

15 

16 ------

17. 

18------

19 

on_iU--- ---

21 

22 ------

91_,j ------

24 ------

25------

26------

27 

28------

29 --

30 

31 

Total1 

2 ------

3 ______

4 

5 

7 .-- .

9- 

10 

11 ..

12--- ---

13 

14 

15 

16 

17 

18------

19 

9n_,u_~____

21 . 

22 

23 --- 

24 

25 -

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

discharge 

(secondfeet)

44 

46 

45 

44 

43

44 

47 

54 

52 

51

48 

47 

48 

46 

42

45 

46 

47 

49 

50

48 

50 

53 

53 

53 

53 

54 

53 

53 

51 

49

1,508

Suspended sediment

Mean 

concentration 

(ppm)

29

29 

27

I 26

61 

73 

74 

68

56

1 '

38

L

Tons 

per 

day

3

e4

3

e6 

8 

9 

10 

9

} "

7

} -

167

January

36 

32 

25 

26 

27

33 

33 

33 

33 

31

36 

34 

32 

31 

30

32 

32 

34 

34 

40

45 

45 

44 

37 

33

36 

40 

37 

35 

35 

35

1,066

88

102 

130

166

144 

95 

96

94

92 

114

"

e8

]"

 ell

| e!5 

e9

310

November

Mean

discharge 

(second - 

feet)

49 

49 

49 

48 

48

46 

48 

48 

47 

47

47 

47 

47 

46 

46

44 

46 

48 

48 

46

41 

43 

44 

47 

45

45 

44 

45 

43 

41

1,384

Suspended sediment

Mean 

concentration 

(ppm)

38 

31

18 

11 

1 22

1 

75 

76

44

35 

95

Tons 

per 

day

-

e2

3

6

8 

9 

e7

e5

4 

11

136

February

35 

35 

37 

40 

43

43 

42 

42 

40 

40

40 

40 

39 

40 

42

44 

45 

44 

45 

45

43 

42 

46 

46 

47 

48 

52 

50

1,195

114

111 

86

144 

216

120 

192 

194

256 

318

314 

261 

453 

258

e!2 

e!9

e38

730

December

Mean

discharge 

(secondfeet)

41 

41 

40 

39 

40

40 

39 

41 

39 

38 

23 

24 

24 

25 

35

35 

34 

33 

33 

32

32 

33 

35 

35 

30 

34 

34 

38 

36 

36 

36

r.075

Smoended sediment

A'«an 

coicentration 

(f-pm)

68 

42 

68 

107 

130

95 

123 

95 

98

106

Tons 

per 

day

8 

5 

7 

11 

14

10 

13 

11 

10 

elO 

7

e8

270

Mirch

47 

50 

49 

48 

50

51 

48 

52 

54 

49 

42 

59 

63 

62 

62

47 

48 

48 

49 

50

46 

45 

45 

45 

48 

47 

43 

44 

42 

42 

44

1,519

211

270

510

600

330 

180 

164

168

166 

123 

127 

153

117 

98 

88 

90 

80

--

e32

e40

80 

e95 

e95 

100

42 

23 

21 

e36 

23 

21 

15 

15 

19 

e!5

15 

11 

10 

10 

9 

elO

1,050
YELLOWSTONE RIVER BASIN 

YELLOWSTOSE RIVER BASIN Continued

MIDDLE PORK POWDER RIVER ABOVE KAYCEE, WYO.--Continued 

Suspended sediment, water year October 1949 to September 19fO Continued

169

Day

2.. 

g

6 

13

IP

19

22

oo

no

on

31 ......

Totalg

g

19

21 

22 

23 

24 - 

25 . 

26 

23 

29 

30 

31 ......

Total

April

Mean

charge 

(secondfeet)

45 

53 

54 

50 

45

54 

58 

63 

80 

67 

58 

56 

61 

76 

136

136 

158 

156 

105 

88

101 

129 

189 

160 

99

108 

87 

87 

72 

82

2,713

Suspended sediment

Mean 

concentration 

(ppm)

83

85 

107

3,700 

1,440 

358

332

238 

203 

228 

490 

3,380

3,360 

660

390 

540

Tons 

per 

day

10 

e!4 

12 

14 

e22

s591 

226 

61 

e80 

60

37 

31 

38 

101 

1,240

e 1, 400 

e 1, 900 

s 1, 540 

187 

elOO

106 

e950 

e 2, 800 

e 1, 800 

e200

157 

ellO 

ellO 

e240 

e700

14, 840

July

46 

46 

52 

48 

48

45 

45 

44 

39 

38 

37 

47 

36 

36 

38

38 

42 

43 

38 

36 

36 

36 

40 

39 

35

35 

32 

29 

34 

37 

32

1,227

57 

61 

58 

52 

168

90 

52 

37 

29 

20 

21 

118 

100 

53 

30

29 

36 

31 

34 

25 

25 

23 

30 

29 

18

19 

12 

14 

25 

56 

24

7 

8 

8 

7 

22

11 

6 

4 

3 

2 

2 

15 

10 

5 

3

3 

4 

4 

3 

2 

2 

2 

3 

3 

2

2 

1 

1 

2 

6 

2

155

May

Mean

charge 

(second - 

feet)

77 ;

76 

76 

74 

77

82 

85 

87 

94 

90

80 

85 

103 

160 

283

383 

562 

827 

658 

418 

330 

487 

647 

511 

333 

227 

238 

260 

197 

200 

200

8,007

Suspended sediment

Mean 

concentration 

(ppm)

2,010 

500

4,920 

2,080 

4,560 

7,850 

3,450 

1,480 

980 

1,180 

3,600 

8,710

7,080 

7,400 

6,780 

5,700 

2,920

1,740 

2,430 

3,380 

2,770 

2,650

808 

830 

542 

294 

245 

227

--

Tons 

per 

day

e420 

413 

103 

e80 

e800

si, 160 

477 

si, 250 

S2, 120 

838

320 

225 

328 

1,560 

s 7, 260

sB.OBO 

s 12, 300 

15, 100 

s 10, 600 

S3, 630

si, 680 

s3,540 

6,220 

34,030 

s 2, 580

495 

534 

S409 

156 

132 

123

86. 960

August

32 

32

30 

30 

31

29 

29 

29 

28 

26 

69 

49 

34 

31 

29

29 

28 

28 

29 

30 

29 

28 

28 

28 

28

29 

29 

28 

28 

27 

27

961

23

4,820 

320 

215 

160

125 

82 

84 

53

32 

29 

30

17

1 '

30

--

2

e2,250 

s818 

29 

18 

13

10 

6 

6 

4 

e3 

3 

2 

2 

e2 

1

(t) 

2

3,190

June

Mean

charge 

(secondfeet)

189 

200 

158 

153 

162

165 

165 

165 

142 

134

129 

120 

112 

106 

101

95 

101 

95 

92 

83 

74 

67 

59 

57 

59 

54 

52 

52 

51 

49

3,241

Suspended sediirent

Mean 

concentration 

(ppm)

213 

200 

124 

119 

121

108 

96 

101 

58 

60 

59 

58 

42 

45 

31

23 

30 

30 

31 

23

22 

24 

24 

27 

89

148 

215 

133 

124 

70

..

Tors 

per 

day

109 

108 

53 

49 

53

48 

43 

45 

22 

22

21 

19 

13 

13 

8

6 

8 

8 

8 

5

4 

4 

4 

4 

14 

22 

30 

19 

17 

9

788

September

26 

25 

25 

25 

24

24 

26 

26 

28 

42 

47 

44 

40 

41 

47

49 

44 

42 

41 

47 

47 

43 

42 

43 

43

42 

42 

43 

48 

50

1,156

28 

19 

19

22

34 

43

89 

55 

48 

36 

61

48 

42 

59 

177 

95

48

56

74 

67 

60 

69

--

2

1:

3 

e4 

e!6 

11

5 

4 

8

e8 

6 

5 

7 

22 

12 

e5 

5 

e6 

6

8 

8 

7 

9 

e8

189

Total discharge for year (second-foot-days). 

Total load for year (tons)..................

25,052

108,800

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.
YELLOWSTONE RIVER BASIN Continued 

MIDDLE FORK POWDER RIVER ABOVE KAYCEE, WYO. Con

Particle-size analyses of suspended sediment, Tune 1949 to Aug

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Apr. 6, 1950 ............

Apr. 15 ................

Apr. 18 ................

May 16 .................

May 24 .................

Aug. 12.................

Time

4:00 p. m. 

11:40 p.m. 

9:25 p.m. 

9:25 p. m. 

7:30 a.m. 

11:06 a.m.

7:05 p. m. 

5:30 p.m. 

11:45 a. m. 

3:25 p. m. 

3:25 p.m. 

11:10 a.m. 

1:20 p. m.

Discharge 

(secondfeet)

128 

48 

60 

60 

145 

165

92 

103 

260 

315 

315 

467 

42

Suspended sedim

Concentration 

of sample 

(ppm)

1,030 

269 

8,530 

8,530 

4,560 

3,540

11, 800 

19, 700 

5,640 

4,150 

4,150 

2,310 

2,650

Concentration 

of suspension 

analyzed 

(ppm)

1,190 

796 

10,100 

5,500 

3,540 

7,100

9,610 

15,800 

4,600 

2,930 

1,910 

4,040 

2,330

Percent finer 

0.002

8 

22 

10 

45

6 

15

0.004

15 

32 

10 

59 

38 

22

65 

55

9 

16 

18 

66

0.008

24 

50 

11 

78

17 

19

0.016

38 

78 

85 

93 

66 

40

90 

82 

20 

20 

26 

34 

93

0.
YELLOWSTONE RIVER BASIN Continued 

MIDDLE 'FORK POWDER RIVER NEAR KAYCEE, WYO.

LOCATION. At gaging station cableway, at Jay Bar U Ranch, li miles downstream from North Fork Powd

DRAINAGE AREA. 980 square miles.

RECORDS AVAILABLE.--Chemical analyses: November 1949 to September 1950.

Water temperatures: March to September 1950.

Sediment records: March to September 1950. 

EXTREMES, foarch to September 1950. Water temperatures: Maximum, 79*F Aug. 31j minimum, not determ

Sediment concentrations: Maximum daily, 13,000 ppm May 17; minimum daily, not determined.

Sediment loads: Maximum daily, 39,100 tons May 18; minimum daily, less than 1 ton on many days. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply 

Chemical analyses, in parts per million, November 1949 to Septem

Date of collection

Nov. 30, 1949........

Sept. 8 ..............

Discharge 

(second 

feet)

96 

a 100 

a 100 

allO 

138

332 

322 

57 

2.7 

1.7

Temperature 

<°F)

PH

7.8 

7.8 

7.8 

7.9 

7.6

7.6 

7.8 

7.6 

7.9 

7.7

Specific 

conductance 

(micromhos at 

25° C)

1,200 

1,530 

1,370 

1,260 

1,380

1,330 

600 

1,260 

1,570 

1,830

Silica 

(SiO,)

12 

39 

14 

26 

14

18 

14 

11 

5.8 

10

Iron 

(Fe)

0.04

.02 

.02

.04 

.10 

.10 

.06 

.02

Calcium 

(Ca)

120 

144 

138 

136 

120

108 

60 

110 

134 

149

Magnesium

(MB)

51 

58 

51 

44 

43

37 

20 

44

54 

57

Sodium 

(Na)

Potassium 

(K)

92 

103 

102 

96 

131

133 

40 

128 

141 

200

Bicarbonate 

(HCOS )

244 ^ 

280 

280 

244 

222

186 

154 

221 

219 

210

Sulfate 

(SO,)

408 

468 

437 

433 

483

493

154 

471 

555 

658

Chlo

rid

(Cl)

1

a Mean daily discharge.
172 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN--Continued 

MIDDLE FORK POWDER RIVER NEAR KAYCEE, WYO.--Continued

Temperature (°F) of water, March to September 1950

/Dnce-JaLy temperature measurement generally between 4 p. m. and 6 p. m., except p^ior to Aug. 1 readLigs

obtained about 8 a. raj

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

Average

Oct. Nov. Dec. Jan. Feb. Mar.

_

--

--

_

--

35

38

44

43

40

38

38

37

40

40

Apr.

40

40

39

42

~

44

45

40

38

40

46

49

51

49

45

_

_

--

May

_

--

52

52

~

59

--

_

52

~

..

._

--

June

_

--

_

57

..

73

_

..

~

July

_

"

72

70

68

68

78

68

70

67

66

67

70

70

77

78

76

70

72

73

74

73

£8

TO

71

T3

73

TO

71

Aug.

72

72

74

78

77

76

75

78

76

72

73

72

72

69

78

75

78

69

64

69

71

71

70

77

64

70

69

79

73

Sept.

78

75

73

76

74

73

67

69

62

55

53

51

49

58

58

56

65

56

64

64

66

62

63

60

54

47

49

--

62

Suspended sediment, March to September 1950

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 

Total -

January

Mean 

discharge 

(second - 

feet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per

day

February

Mean 

- discharge 

(secondfeet)

|-

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

Miirch

Mean 

discharge 

(secondfeet)

100

100

110

150

140

131

117

93

104

108

67

111

94

122

136

138

124

117

113

133

128

124

133

124

130

125

120

115

113

1G4

108

3,632

Suspended sediment

Mean 

comentraHon

(prm)

590

260

200

185

170

126

120

127

768

1,220

777

1,010

460

320

790

230

160

230

182

-

Tons 

per 

day

e75

elOO

e!30

e260

e220

208

82

50

52

50

23

36

32

e75

282

455

e340

e280

e240

279

e300

338

e280

154

112

266

el90

71

49

65

53

5,150
YELLOWSTONE RIVER BASIN 

YELLOWSTONE RIVER BASIN Continued

MIDDLE FORK POWDER RIVER NEAR KAYCEE, WYO.--Continued 

Suspended sediment, March to September 1950 Continued

173

 r

Day

1 ......

2 

3 ......

4 ...

5 

6 

7~. 

------

9 

10 

11 ......

12 

1 oi«i------

14 ......

15 

16 

17 

18------

19-- 

20 

91 ______

22 

23------

24------

25 

26------

27 

9fl 60------

29 

30 

31- 

Total1 

2 

3 ......

4 

5 .... .-

6 

7 

9 ...... 

10 

11 ... 

12 

13 

14 ....._ 

15 

16 

17- 

18 .... 

19- 

20 ...

21 

22 . 

23 

24 

25 

26 

27 

28 

29 ----- 

30 ------ 

31 ....

TotalApril |

Mean

discharge 

(secondfeet)

108 

119 

145 

131 

119

145 

179 

148 

171 

349

166 

145 

138 

168 

252

335 

363 

410 

322 

242

227 

262 

366 

410 

242

224 

209 

209 

194 

191

6,589

Suspended sediment

Mean 

concentration 

(ppm)

150 

165 

490 

370 

300

2,000 

3,520 

1,250

6,220

1,600 

380 

400 

650 

2,510

3,000 

5,500

Tons 

per 

day

44 

53 

192 

131 

96

783 

1,700 

500 

e750 

4,180

717 

149 

149 

295 

si, 970 

2,720 

e3,300 

6,090 

a 3, 700 

al,600

a 1,300 

a2,500 

a 5, 600 

a6,000 

a2,000

a 1,800 

al,200 

a 1,200 

al,000 

a 900

52,600

July

9.6 

32 

31 

33 

22

38 

22 

16 

15 

8.8

6.7 

7.4 

11 

6.1 

5.4

6.4 

9.2 

15 

11 

6.4 

6.1 

5.1 

5.4 

5.1 

4.6

4.1 

3.6 

3.6 

3.4 

7.0 

3.9

 3133.9

2,710 

2,000 

200 

154 

115

83 

87 

77 

92 

198

104 

200 

94 

47

)"

49

95 

97

--

e5 

e210 

e35 

e!4 

e6

278 

119 

9 

6 

3 

2 

2 

2 

2 

3 

2 

5 

4 

1

(t)

(t)

2 

1

717

May

Mean

discharge 

(secondfeet)

242 

246 

249 

215 

215

356 

335 

284 

503 

448

306 

246 

230 

262 

519 

810 

1,010 

1,260 

1,230 

830

620 

687 

946 

1,010 

690

463 

393 

432 

428 

339 

335

16,139

Suspended sediment

Mean 

concentration 

(ppm)

8,300 

7,000

13,000 

11, 500 

8,500 

5,930 

6,670 

8,000 

7,280 

6,000 

3,000

3,650 

2,550 

2,400 

1,660 

1,390 

1,110

Tons 

per 

day

a 2, 500 

a 2, 200 

a2,200 

a 1,200 

al.SOO

7,980 

a6,900 

as, 500 

a 12, 000 

a 11, 000 

5,780 

e2,700 

el, 700 

a2,800 

e 15, 000 

e 18, 000 

35,400 

39,100 

28,200 

13,300

11,200 

14,800 

18,600 

16,400 

5,590

4,560 

2,700 

2,800 

1,920 

1,270 

1,000

296,000

August

2.7 

2.5 

2.4 

2.2 

2.2

2.1 

1.5 

1.1 

1.2 

1.5 

.9 

20 

3.2 

2.1 

2.1

2.1 

1.9 

1.9 

1.9 

1.7 

1.7 

1.5 

1.5 

1.5 

1.5

1.5

1.7 

1.7 

1.7 

1.7 

1.7

' 74.9

71

50

1,910 

930 

250

89

60 

63

(t)

(t)

s!72 

sll 

1

(t)

(t) 

(t)

193

June

Mean

discharge 

(secondfeet)

278 

326 

346 

294 

303

322 

339 

369 

319 

281

274 

258 

230 

212 

200

197 

203 

203 

185 

133

94 

80 

65 

54 

47

37 

30 

26 

23 

16

5,744

Suspended sedin-ent

Mean 

concentration 

(ppm)

920 

925 

510 

659 

625

726 

1,150 

750 

700

242

Tors 

pe.~ 

da;>

690 

815 

477 

523 

511

e550 

665 

1,150 

646 

531

e360 

e260 

e!80 

139 

el20 

ellO 

e!20 

el20 

el20 

e!20 

e75 

e60 

e44 

e34 

e26

e20 

e!6 

elO 

e8 

e6

8,500

September

.8 

.8 

.7 

.7 

.5

1.5 

1.5 

1.7 

1.7 

5.9 

25 

30 

27 

26 

43

64 

62 

53 

45 

47 

57 

51 

47 

54 

65

64 

61 

61 

65 

73

1,640.6

40

125 

164

75 

75 

178

82 

62 

31

254 

375 

182 

60 

48 

57 

62

~75 

46 

131

(t)

S3 

11

e7 

5 

5 

21 

14 

10 

4 

e8 

32 

58 

25 

8 

7 

10

11 

elO 

12 

8 

26

297

Total discharge for period Mar. 1 to Sept. 30 (second-Coot-days) 

Total load tor period Mar. 1 to Sept. 30 (tons) .......... 

33,583.6

363,500

e Estimated.

s Computed by subdividing day.

t Less than 1. 0 ton.

a Computed from water-sediment relation curve and estimated concentration graph.
YELLOWSTONE RIVER BASIN Continued 

MIDDLE FORK POWDER RIVER NEAR KAYCEE, WYO. Contin

Particle-size analyses of suspended sediment, March to July 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

May 18

July 6 ..................

Time

5:00 p.m. 

8:00 a. m. 

6:00 a.m. 

2:25 p.m.

1:00 p.m. 

3:25 p.m. 

6:00 p. m. 

11:00 a. m.

Discharge 

(secondfeet)

a 125 

179 

322 

1,330

1,540 

1,060 

342 

58

Suspended sedi

Concentration 

of sample 

(ppm)

1,220 

4,040 

2,970 

15,100

12,800 

6,120 

1,040 

517

Concentration 

of suspension 

analyzed 

(ppm)

980 

3,300 

2,310 

5,600

8,130 

3,140 

306 

1,180

Percent finer 

0.002

18

0.004

82 

80 

48 

23

21 

16 

13 

40

0.008

30

0.016

97 

97 

83 

40

48 

30 

33 

83

0

a Mean daily discharge.
YELLOWSTONE RIVER BASIN Continue.! 

CRAZY WOMAN CREEK NEAR ARVADA, WYO.

LOCATION. At county highway bridge, 200 feet downstream from gaging station, which is a quarter o

Arvada. Sheridan County.

DRAINAGE AREA. 956 square miles. 955 square miles at former site of gage (revised). 

RECORDS AVAILABLE. Water temperatures: March to September 1950.

Sediment records: March to September 1950. 

EXTREMES, March to September 1950. Water temperatures: Maximum, 80*F Aug. 15; minimum, freezing 

Sediment concentrations: Maximum daily, 36,500 ppm Aug. 13; minimum daily, no flow Aug. 23 to S

Sediment loads: Maximum daily, 12,500 tons Aug. 13; minimum daily, 0 tons Aug. 23 to Sept. 11. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply 

Chemical analyses, in parts per million, December 1949 to Septemb

Date of collection

Dec 7 1 949

Sept. 28 .........

Discharge 

(secondfeet)

a!3 

145 

57 

12

Temperature 

(°F)

PH

7.8 

7.8 

7.8 

7.4 

7.9

Specific 

conductance 

(micromhos at 

25° C )

2,290 

1,490 

842 

1,080 

1,810

Silica 

(Si02 )

14 

28 

15 

11 

7.0

Iron 

(Fe)

0.02 

.02 

.10 

.20 

.04

Calcium 

(Ca)

224 

148 

76 

97 

162

Magnesium 

(Mg)

120 

75 

32 

47 

92

Sodium 

(Na)

Potassium 

(K)

171 

105 

63 

83 

147

Bicarbonate 

(HCO3 )

330 

244 

148 

171 

216

Sulfate 

(SO,)

1,080 

663 

313 

445 

870

Chloride 

(Cl)

19 

10 

5.

7.

13

a Mean daily discharge.
MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

CRAZY WOMAN CREEK NEAR ARVADA, WYO.--Continued

Temperature (°F) of water, March to September 1950 

/Once-daily temperature measurement generally about 9 a. m., except during May and June, readings about 5p. m.J

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

Average

Oct. Nov. Dec. Jan. Feb. Mar.

..

32

"

..

..

32

..

34

34

32

34

32

35

34

35

33

34

34

34

34

36

34

Apr.

34

34

36

34

34

37

35

35

35

35

36

48

40

45

48

48

52

43

41

43

43

48

49

41

38

41

43

38

45

48

41

May

50

50

43

46

52

53

55

55

50

59

60

65

62

60

68

58

56

59

63

68

65

55

59

59

61

54

63

sa

60

57

June

55

57

63

67

65

72

57

54

57

64

72

72

74

75

65

68

65

63

68

73

73

75

76

66

77

71

73

~

67

Jul.'

66

71

67

73

66

68

68

70

69

71

60

59

65

64

63

60

63

61

65

65

66

63

64

65

63

67

68

67

59

58

65

Aug.

58

60

63

70

65

64

64

67

64

65

60

61

80

67

64

64

54

..

..

--

..

Sept.

..

56

58

53

52

53

55

53

53

51

45

43

41

Suspended sediment, March to September 1950

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 

TotalJanuary

Mean

discharge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

February

Mean

discharge 

(second - 

feet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

March

Mean

discharge 

(secondfeet)

::

-

22

24

23

23

23

26

28

29

30

31

31

32

33

34

36

42

49

516

Suspended sediment

yean 

concentration 

(fom)

--

-

141

..

60

100

37

31

55

79

230

188

167

131

110

115

256

270

-

Tons 

per 

day

::

-

-.

8

e5

4

6

2

2

4

6

19

el7

16

14

12

10

11

29

36

201
YELLOWSTONE RIVER BASIN 177

YELLOWSTONE RIVER BASIN Continued

CRAZY WOMAN CREEK NEAR ARVADA, WYO. Continued

Suspended sediment, March to September 1950 Continued

Day

o

2

21

22

23

24

25

29

31 

Total1

0

S .

19

13

15 

18

19

20

21

22

oo

24 - 

25 

26 

27 

28 

29 

30 

31 - 

Total -

April

Mean

charge 

(secondfeet)

56 

64 

60 

63 

69

70 

68 

73 

83 

81

96 

97 

83 

64 

60

176 

188 

124 

135 

126

93 

75 

69 

75 

90

81 

62 

54 

51 

49

2,535

Suspended sediment

Mean 

concentration 

(ppm)

220 

500 

570 

280 

750

890 

1,080 

1,180 

1,380 

1,230

1,680 

2,630 

1,880 

720 

525

5,320 

7,170 

4,250 

3,020 

1,990

1,090 

720 

495 

550 

690

505 

323 

247 

195 

178

Tons 

per 

day

33 

86 

92 

48 

140

168 

198 

232 

309 

269

435 

531 

s451 

124 

85

S2.970 

3,640 

1,420 

1,100 

677

274 

146 

92 

111 

168

111 

54 

36 

27 

24

14,050

July

43 

47 

49 

55 

57

66 

51 

59 

44 

40

36 

32 

25 

22 

22 

25 

25 

25 

22 

20 

18 

16 

14 

11 

9.5

8.1 

31 

24 

16 

13 

9.8

935.4

121 

120 

157

165 

308 

179 

164 

96 

93 

80 

67 

62 

52 

45

164 

220 

281 

133 

97 

77 

68 

59 

42

28 

207 

104 

38 

34 

37

14 

15 

21 

e24 

25

55 

25 

26 

11 

10

8 

6 

4 

3 

3 

e9 

11 

15 

17 

7 

5 

3 

3 

2 

1

(t) 

s22 

7 

2 

1 

1

357

May

Mean

charge 

isecondfeet)

48 

44 

48 

59

77

69 

75 

102 

104 

107

176 

158 

134 

103 

84

83 

229 

322 

363 

404 

304 

245 

206 

241 

271

269 

208 

182 

165 

174 

178

5,232

Suspended sediment

Mean 

concentration 

(ppm)

150 

130 

137 

260 

349

279

3,040 

1,600 

2,180

4,700 

5,120 

6,400 

4,850 

4,250

3,680 

7,030 

11,100 

10,000 

10,200

6,390 

3,650 

2,590 

2,650 

2,900

2,740 

1,850 

1,440 

1,140 

1,350 

1,300

Tuns 

per 

day

19 

15 

18 

41 

73

52 

e200 

837 

449 

630

s2,530 

2,180 

2,320 

1,350 

964

824 

s 4, 750 

9,650 

9,800 

11,100

5,240 

2,420 

1,440 

1,720 

2,120

1,990 

1.040 

'708 

508 

634 

625

66,250

August

9.1 

14 

8. 8 

6.5 

5.0 

3.6 

2.6 

1.7 

1.4 

1.2

1.2

24 

70 

5.8 

2.6 

1.6 

1.1 

.7 

.5 

1 .3 

.2 

.1 

0 

0 

0 

0 

0 

0 

0 

0 

0

162.0

43 

34

15

36,500 

1,300 

320

163 

116 

98 

93

Total discharge for period Mar. 15 to Sept. 30 (second-foot-days 

Total load for period Mar. 15 to Sept. 30 (tons) ...............

1 

1

(t)

e 2, 400 

s 12, 500 

s 25 

2

(t) 

(t) 

(t) 

(t) 

(t) 

(t) 

(t) 

0 

0 

0 

0 

0 

0 

0 

0 

0

14,930

June

Mean

charge 

(secondfeet)

176 

156 

130 

129 

126

137 

117 

142 

202 

236

178 

163 

148 

170 

172

161 

167 

163 

150 

165

140 

126 

107 

99 

93

78 

75 

68 

51 

44

4,069

Suspended sediment

Mean 

concentration 

(ppm)

1,260 

1,070 

872 

684 

697

882 

706 

892 

1,640 

2,460

1,840 

1,200 

990 

1,170 

1,230

1,030 

1,180 

1,100 

850 

840 

760 

740 

640 

450 

425

330 

331 

266 

194 

158

Tens 

per 

day

599 

450 

306 

238 

237

326 

223 

342 

895 

1,570

884 

529 

396 

537 

571

448 

532 

484 

344 

374 

287 

252 

185 

120 

107

70 

67 

49 

27 

19

11,470

September

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

.1 

.1 

.1 

.1

.1 

.1 

5.3 

11 

9.8 

13 

12 

14 

15 

17 

15 

14 

12 

12 

12

162.7

90 

73 

79 

62 

78 

60 

85 

63 

65 

40 

37 

38

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

(t) 

(t) 

(t) 

(t)

(t) 

(t) 

e2 

3 

2 

3 

2 

3 

2 

4 

3 

2 

1 

1 

1

29

.................................. 13, 612. 1

.................................. 107, 300

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.
YELLOWSTONE RIVER BASIN Continued 

CRAZY WOMAN CREEK NEAR ARVADA, WYO. Continued

Particle-size analyses of suspended sediment, April to August 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection

Apr. 17 ..............

May 18 ...............

May 25 ...............

June 1 ......

Aug. 13 ...............

Time

3:36 p.m. 

8:20 a. m. 

9:20 a.m. 

8:07 a. m. 

11:18 a. m.

3:16 p.m. 

4:10 p.m. 

4:00 p. m. 

4:17 p. m. 

4:17 p.m.

10:42 a. m. 

5:20 p.m. 

4:28 p.m. 

8:25 a.m. 

7:10 a.m.

7:30 a.m. 

6:10 p.m.

Discharge 

(secondfeet)

82 

140 

192 

121 

124

100 

178 

132 

396 

396

235 

176 

140 

180 

18

73 

15

Suspended sedim

Concentration 

of sample 

(ppm)

1,160 

3,200 

7,620 

4,300 

1,900

1,750 

6,360 

9,740 

12,600 

12,600

3,040 

1,170 

886 

2,060 

15,400

52, 700 

12, 600

Concentration 

of suspension 

analyzed 

(ppm)

1,120 

2,470 

5,820 

3,230 

3,770

3,720 

5,140 

8,180 

11,200 

7,460

4,920 

540 

1,640 

1,230 

6,630

5,520 

5,480

Percent finer th

0.002

36

2

28

0.004

68 

60 

41 

52 

45

73 

60 

74 

3 

38

31 

39 

41 

36 

74

56 

74

0.008

82 

57

13 

48

0.016

92 

77 

70 

75 

68

87 

80 

91 

54 

60

45 

49 

57 

47 

97

87 

93

0.0
YELLOWSTONE RIVER BASIN Continued 

CLEAR CREEK NEAR ARVADA, WYO.

LOCATION. At gaging station, 100 yards downstream from Cabin Creek, li miles upstream from mouth, 

DRAINAGE AREA. 1,110 square-miles.

RECORDS AVAILABLE. Water temperatures: March to September 1950.

Sediment records: March to September 1950. 

EXTREMES, March to September 1950. Water temperatures: Maximum, 72°F Aug. 9; minimum, freezing po

Sediment concentrations: Maximum daily, 2,200 ppm June 8; minimum daily, not determined.

Sediment loads: Maximum daily, 7,660 tons June 8; minimum daily, less than 1 ton on several days

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply 

Chemical analyses, in parts per million, September 1949 to Septem

Date of collection

Sept. 13, 1949 .......

Sept. 6 .............

Discharge 

(secondfeet)

a 62 

a 86 

a 64

460 

287 

4.1

Temperature 

<°F)

PH

7.8 

8.0 

7.4

7.8 

7.3 

7.5

Specific 

conductance 

(micromhos at 

25" C )

1,620 

1,380 

916

494 

545 

1,820

Silica 

(SiOz)

6.2 

12 

6.4

14 

8.6 

7.4

Iron 

(Fe)

0.02 

.02

.04 

.02 

.02

Calcium 

(Ca)

132 

135 

83

46 

46 

157

Magnesium 

(Mg)

89 

62 

44

19 

23 

88

Sodium 

(Na)

Potassium 

(K)

112 

113 

66

29 

32 

171

Bicarbonate 

(HCO,)

234 

308 

208

120 

119 

282

Sulfate 

(S04)

704 

553 

335

147 

170 

845

Chloride 

(Cl)

5.0 

2.6 

5.0

1.0 

1.0 

7.0

a Mean daily discharge.
180 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued 

CLEAR CREEK NEAR ARVADA, WYO. Continued

Temperature (°F) of water, March to September 1950 

/Once-daily temperature measurement at approximately 8:00 a. mj

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Average

Oct. Nov. Dec. Jan. Feb. Mar.

..

__

_

._

--

..

_.

_.

--

..

_

--

..

-.

32

32

--

_

-.

33

32

--

--

Apr.

_

_

_

41

38

43

44

41

38

42

45

49

51

50

50

42

40

43

50

49

49

38

36

41

43

41

34

38

--

43

May

43

..

41

39

41

44

41

40

43

46

51

55

57

60

58

58

59

58

50

52

54

58

61

55

50

50

55

56

52

55

53

51

June

53

54

52

56

60

63

60

50

45

48

56

62

64

63

62

63

62

57

57

64

63

65

63

67

63

60

62

63

63

66

--

60

Julj

68

70

"

66

68

70

70

71

70

62

61

66

65

61

60

62

64

66

66

62

66

67

67

67

67

67

68

60

--

66

Aug.

54

60

65

65

66

63

61

65

72

69

63

66

62

62

62

67

60

62

59

58

58

62

60

59

62

60

60

59

65

58

60

62

Sept.

62

62

64

63

63

_

63

60

58

56

52

48

47

49

45

45

--

54

56

59

51

51

52

56

54

55

51

46

48

41

--

54

Suspended sediment, March to September 1950

Day

1 ____

2 

3 

4 

5 

6 

7 - 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalJanuary

Mean 

discharge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

February

Mean 

discharge 

{second - 

feet)

Suspended sediment

Mean 

concentration 

(ppm)

Tuns 

per 

day

Ma-ch

Mean 

discharge 

(secondfeet)

__

._

._

--

_

--

'_'_

._

--

__

__

100

105

110

130

150

155

160

160

166

161

166

1,563

Suspended sediment

Me^n 

concentration 

(PP~n)

__

_

_

_

--

._

--

I~

--

..

-_

-.

--

_

_.

_

_

48

_

85

__

--

..

_

110

_

56

Tons 

per 

day

_

_

_

--

--

_.

_

_

,

_

_

--

-

e32

J

350
YELLOWSTONE RIVER BASIN 

YELLOWSTONE RIVER BASIN Continued 

CLEAR CREEK NEAR ARVADA, WYO. Continued 

Suspended sediment, March to September I950--Continued

181

Day

O

g

1 3

90

9ft

no

OQ

31 

Totalq

13

1 A

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

April !

Mean

charge 

(second - 

feet)

155 

183 

218 

189 

147

134 

152 

233 

224 

354

260 

178 

155 

192 

272

303 

245 

212 

189 

150

128 

116 

130 

150 

166

118 

136 

118 

123 

131

5,461

Suspended sediment

Mean | 

concentration 

(ppm)

144 

107 

123 

62 

47 

68 

147 

154

1,380 

960 

140 

56 

53 

137

200 

117 

52 

30 

23

28 

33 

31 

37 

29

22 

25 

16 

13 

17

--

July

42 

19 

90 

393 

303

266 

233 

180 

150 

136

141 

126 

144 

134 

96 

74 

79 

121 

92 

99 

79 

55 

42 

39 

49 

83 

94 

65 

60 

24 

9.2

3, 517.2

15 

14

82

93 

56 

31 

24 

23

25 

16 

17 

21 

16 

15 

100 

1,230 

220 

96 

67 

42 

33

40 

60 

77 

44 

38 

30 

33

-

Tons 

per 

day

60 

53 

72 

32 

19

25 

60 

97 

ellO 

1,320

674 

67 

23 

27 

101

164 

77 

30 

15 

9

10 

10 

11 

15 

13

7 

9 

5 

4 

6

3,120

2

P elO

e!27 

67

67 

35 

15 

10 

8

10 

5 

7 

8 

4 

3 

21 

402 

55 

26

14 

6 

4 

e3 

5

13 

20 

8 

6 

2 

(0

964

May

Mean

charge 

(secondfeet)

92 

128 

116 

158 

144

116 

136 

172 

158 

150

172 

155 

144 

134 

189

367 

476 

536 

645 

504 

406 

376 

512 

715 

760

532 

428 

452 

528 

413 

406

10, 220

Suspended sediment

Mean 

concentration 

(ppm)

16 

27 

24 

32 

34 

28 

33 

35 

45 

55

65 

61 

55 

54 

82

460 

1, 130 

1,280 

1,430 

604

279 

232 

576 

1, 130 

855

415 

239 

210 

292 

179 

153

Tons 

per 

day

4 

9 

8 

14 

13

9 

12 

16 

19 

22 

30 

26 

21 

20 

42

456 

1,450 

1,850 

2,490 

821 

306 

236 

796 

2,180 

1,750

596 

276 

256 

416 

200 

168

14, 510

August

4.1 

3.5 

2.4 

2.2 

2.1

2.2 

2.4 

2.6 

2.2 

2.4

2.8 

3.9 

158 

13 

48 

34 

17 

14 

16 

11 

16 

10 

6.5 

9.2 

14

18 

25 

16 

13 

13 

20

504.5

31

980 

380 

370 

300 

160 

100 

68 

65 

71 

106 

68 

46 

53 

50 

43 

49 

50 

61 

64

-

(t)

s536 

s24 

48 

28 

7 

4 

3 

2 

3 

3 

1 

1 

2 

2 

3 

2 

2 

2 

3

679

June

Mean

charge 

(secondfeet)

357 

357 

400 

328 

322

417 

832 

1,290 

1,000 

690 

500 

460 

844 

910 

705

670 

596 

805 

820 

645

650 

484 

540 

576 

532

705 

420 

230 

144 

83

17,312

Suspended sedin ent

Mean 

concentration 

(ppm)

95 

90 

135 

66 

65

180 

1,340 

2,200 

1,540 

578

277 

199 

787 

924 

550

462 

342 

1,340 

760 

388

396 

195 

"320 

315 

272

490 

198 

54 

26 

18

Tons 

per 

day

92 

87 

146 

58 

56

203 

3 010 

7,660 

4 160 

1.080 

374 

247 

1.790 

2.270 

1.050

836 

550 

2.910 

1,680 

676

695 

255 

466 

490 

391

932 

224 

34 

10 

4

32. 440

September

22 

18 

16 

8.8 

6.5

3.9 

3.0 

3.0 

18 

21

27 

46 

118 

126 

139 

161 

178 

158 

141 

150 

147 

152 

139 

123 

113 

111 

101 

99 

106 

121

2,576.2

60 

47

1-

51 

34

23 

37 

141 

124 

103 

113 

141 

126 

102 

102 

85 

70 

64 

64 

65

73 

67 

45 

42 

35

e4 

3 

2

(tv

2 

2

2 

5 

45 

42 

39 

49 

68 

54 

39 

41

34 

29 

24 

21 

20

22 

18 

12 

12 

11

603

Total discharge for period Mar. 21 to Sept. 30 (second-foot-days). 

Total load for period Mar. 21 to Sept. 30 (tons) .................

41.153.

52, 670

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.
YELLOWSTONE RIVER BASIN Continued 

CLEAR CREEK NEAR ARVADA, WYO.--Continued

Particle-size analyses of suspended sediment, May to August, 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C,' chemically dispersed; M, mechanically 

Date of collection

Aug. 13 ................

Time

7:15 p.m. 

2:50 p.m. 

9:00 a. m. 

11:20 a.m. 

1:30 D. m.

Discharge 

(secondfeet)

444 

740 

1,210 

904 

99

Suspended sedim

Concentration 

of sample 

(ppm)

895 

855 

2,670 

959 

1.440

Concentration 

of suspension 

analyzed 

(ppm)

2,490 

2,240 

1,660 

2,150 

1.120

PerceVit finer 

0.002

69

0.004

50 

34 

34 

23 

82

0.008

94

0.016

76 

54 

47 

42 

100

0.0
YELLOWSTONE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN YELLOWSTONE RIVER 

Chemical analyses, In parts per million, water year October 1949 to Sept

Date of collection

Discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(SIC,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

dium 

(Na)

Potassium 

(K)

Carbonate

Bicarbonate

Sulfate 

(S04 )

Chloride 

(Cl)

YELLOWS10NE RIVER AT BILLINGS, MONT.

160

92

24

132

9.0 

8.0 

2.0 

7.5

Dec. 6, 1949 ......... 3,140 7.3 479 22 0.02 44 12

Mar. 2, 1950 ........ 3,460 7.5 452 18 .02 45 12

June 2............... 17,000 7.6 194 16 .10 21 5.5

Sept. 4 .............. 4,330 7.5 530 14 .02 45 19

	YELLOWSTONE RIVER NEAR SIDNEY, MON1.

Mar. 2, 1950 ........ 9,150 1.5 ioi ~~17 0.04 64 ~25

Mar. 15 ............. 5,830 7.6 781 14 .04 64 25

Apr. 5............... 29,100 7.9 548 18 .04 44 14

May 5 ............... 9,160 7.9 836 23 .10 60 26

May 31 .............. a21,400 7.7 491 18 .04 46 12

July 10 .............. 39,400 8.0 300 13 .03 35 4.5

Aug. 4 .............. 14,900 7.9 534 12 .02 53 11

Sept. 8 .............. 4,990 8.3 694 11 .08 55 18

Oct. 24, 1949 ........ 68 7.4 211 26 0.02 25 5.4

Nov. 10 ............. 83 8.0 188 28 .06 25 1.5

Nov. 29 ............. 41 7.8 223 22 .02 27 5.0

Apr. 13, 1950........ 137 7.2 204 17 .24 28 4.4

May 17 .............. 320 7.8 206 26 .04 24 5.3

June 29.............. 778 7.5 111 3.7 .04 14 2.6

July 30 .............. 300 7.5 144 27 .04 23 3.4

Sept. 8.............. 132 7.5 162 31 .02 _19_ 4.0

	OCEAN DRAIN AT OCEAN LAKE OU1LE1 NEAR PAVILLION, W

Mar. 31, 1950 ....... 12 i 7.5 I 3,130 22 0.02 ~149 I 50 ' ' ' ' 

T"ne',o.............. 17 I 7.1 I 2,970 24 .04 110 I 46

260

243

150

227

119

64

153

208

11

10

7.0

14

6.0

3.5

6.5

10

WIND RIVER NEAR DUBOIS, WYO.

13

15

14

11

12

9.4

1.2

9.7

15

10

17

13

10

10

3.0

9.0

1.2

1.5

1.6

2.0 

.5

1.0 

.5

557

549

172 1,450 

104 |l, 390

a Mean daily discharge.
YELLOWSTONE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN YELLOWSTONE RIVER BAS

Chemical analyses, in parts per million, water year October 1949 to September 

Date of collection

Discharge 

(secondfeet)

pH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Carbonate

Bicarbonate

Sulfate 

(S04)

Chloride 

(Cl)

ALKALI CREEK AT RALSUON, WYO.

Dec. 6, 1949 ........ 7. 9 1, 230 20 54

Mar. 9, 1950 ....... 7.7 1,390 18 0.02 50

June 7 .............. 8. 0 384 18 .02 26

Sept. 7 ............. _______ 7.7 370 20 .02 30

Dec. 6, 1949 ........ ~ 7.9 2,270 27 0. 02 93

Mar. 9, 1950 ....... 21 8.0 2,130 37 .02 85

Apr. 13............. 19 8.0 2,240 12 .02 57

Apr. 25 ............ 135 7. 8 843 23 .02 68

June 7.............. 278 7.8 826 22 .02 51

Sept. 7 ............. 261 7.3 835 15 .02 60

Dec. 6, 1949 ........ 7.9 5,060 20 0.04 290

Mar. 9, 1950 ....... 7. 9 5, 630 28 .02 295

June 7.. ............ 130 7.7 i, 830 17 .02 119

Sept. 7 ............. 173 7. 8 | 1,780 16 .04 121

Dec. 7, 1949 ........ a5.0 7.5 130 17 0.04 16

Mar. 3, 1950 ....... a2.3 7.4 113 22 .02 11

June 6.............. 324 6.6 42.0 11 .04 6.0

Sept. 3 ............. S.I 7.0 37.9 15 .0? 0.5

37

37

9. 9

7.1

176

224

46

40

324

340

142

127

363

443

78

77

13

14

3.0

4.0

BHIER CREEK NEAR GARLAND, WYO.

425

369

420

96

113

109

398

210

872 19

18

21

8.0

7.0

8.5

SAGE CREEK NEAR LOVELL, WYO.

232

233

58

57

811

964

244

234

396 

229

2, 860

468 3, 190

793

CLEAR CREEK NEAR BUFFALO, WYO.

10

12

3.7

5.5

13

3.0

7.0

1.0 

4.0 

1.0

a Mean daily discharge.
YELLOWSTONE RIVER BASIN 185

YELLOWSTONE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN YELLOWSTONE RIVER BASIN Continued 

[Periodic determinations ot suspended-sediment discharge, water year October 1949 to September 1950

Date

Instantaneous 

water discharge 

(second -feet)

Suspended sediment

Mean 

concentration 

(ppm)

Instantaneous 

discharge 

(tons per day)

WIND RIVER ,SOO FEET UPSTREAM FROM MOUTH OF NORTH FORK WIND RIVER, NEAR DUBOIS. WYO.

Sept 16, 1949............. 350 225 | 2'3

WIND RIVER NEAR BURRIS, WYO. (JUST UPSTREAM FROM MOUTH OF DINWOODY CREEK)

Sept 16, 1949............. 720 210 418

NORTH FORK WIND RIVER NEAR DUBOIS, WYO.

May 1 ....................

May 2 ....................

May 2 ....................

May 3 ....................

May 3 ....................

May 4 ....................

May 5 ....................

May 5.......... ..........

May 8 ....................

May 8 ....................

May 9 ....................

May 9 ....................

May 11 ...................

May 11 ...................

May 12 ...................

May 15 ...................

May 16 ...................

May 18 ...................

May 18 ...................

May 18 ...................

Sept. 16 ..................

83

66

94

77

136

625

788

708

216

221

40

256

62

890

702

276

1,220

67

76

755

774

448

114

50

8.6

115

44

55

37

53

11

217

152

139

51

93

51

310

14

402

28

1,270

T83

357

1,420

1,650

784

856

66

BEAVER CREEK NEAR ARAPAHOE, WYO.

Apr. 13, 1950 ............

Apr. 17 ..................

Apr. 25 ..................

May 10 ...................

June 21...................

July 11 ...................

July 18 ...................

July 24 ...................

Sept. 27 ..................

37

110

89

56

9.2

5,000

5,310

8,500

6,700

11,600

1,670

1,300

1,620

500

1,030

1,990

2,790

253

56

4.9

263

47

356

40

OCEAN DRAIN AT OCEAN LAKE OUTLET NEAR PAVILLION, WYO.

Oct. 3, 1949 ..............

Oct. 4 ...................

Oct. 5 ...................

Oct. 7 ...................

Oct. 11...................

Oct. 12. ..................

Oct. 19. ..................

Oct. 21. ..................

Nov. 2 ...................

Nov. 4 ...................

Nov. 16 ..................

Nov. 23 ..................

Nov. 28 ..................

Dec. 7 ...................

28

24

24

23

24

25

23

23

16

14

2

5

7

180

12

22

6

8

6

22

3

O.li

.3:5

23

.45

12

.75

.53

.37

.95

.11
186 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN YELLOWSTONE RIVER BASIN Continued 

Periodic determinations ot suspended-sediment discharge, water year October 1949 to September 1950 Continued

Date

Instantaneous

water discharge

(second-feet)

Suspended sediment

Mean

concentration 

(ppm)

Instantaneous

discharge 

(tons per day)

OCEAN DRAIN AT OCEAN LAKE OUTLET NEAR PAVILLION, WYO.~Continued

Dec. 14,1949............. 13 2

Dec. 21 .................. 13 2

Dec. 23 .................. 12 2

Dec. 28 .................. 9.8 2

Jan. 4, 1950 .............. 8. 2 1

Jan. 18................... 3.2 1

Feb. 15 .................. 16 2

Feb. 22 .................. 14 16

Feb. 28 .................. 14 5

Mar. 10.................. 15 4

Mar. 17.................. 15 12

Mar. 23.................. 15 21

Mar. 29.................. 12 370

Apr. 4 ................... 22 17

Apr. 12 .................. 31 3

June 29 .................. 17 16

July 27 .................. 19 16

July 31 .................. 19 11

Sept. 27.................. ______________28 _______________45

UPPER HANOVER CANAL, 1 MILE SOUTHWEST OF WINCHESTER,

July 14, 1950 ............. 289 1,510

Aug. 4 ................... 213 2,680

Sept. 27 .................. _____________235 _____________1,160

UPPER HANOVER CANAL, 5i MILES SOUTH OF WORLAND, WYO.

Aug. 4, 1950 .............| 162 | 3,040 |

UPPER HANOVER CANAL, 2J MILES SOUTH OF WORLAND, WYO.

Aug. 4, 1950 ............. | 169 | 2,930 |

UPPER HANOVER CANAL, 2J MILES EAST OF WORLAND, WYO.

Aug. 4, 1950 ............. I 55.4 | 3.000 |

UPPER HANOVER CANAL, 11 MILES NORTHEAST OF WORLAND, WYC.

Aug. 4, 1950 ............. | 3.62 | 2,520 |

BLUFF CANAL, 21 MILES NORTHEAST OF WINCHESTER, WYO.

July 14, 1950.............. TLO 1,580

Aug. 22 .................. 117 3,300

Sept. 27 .................. _____________125_________________1,350

BLUFF CANAL, 8 MILES SOUTHWEST OF WORLAND, WYO. 

Aug. 22, 1950 ............ I 58.2 | 3,070 |

GOOSEBERRY CREEK NEAR GRASS CREEK, WYO. 

Apr. 14, 1950 ............. | 18.8 | 788

GOOSEBERRY CREEK AT PULLIAM, WYO.

Mar. 17, 1950 ............ 2072 10,200

Apr. 11 .................. _______________1.93 _____________1.470

BIGHORN CANAL, 2 MILES NORTHEAST OF NEIBER, WYO.

July 14, 1950 ............. 589 1,730

Aug. 23 .................. 376 3,380

Sept. 27 .................. _____________317 _____________1,670

BIGHORN CANAL, 2} MILES NORTHEAST OF NEIBER, WYO.

July 14, 1950 ............. 423 1,440

Aug. 23 .................. _____________e370 ______________3,380

BIGHORN CANAL, 4 MILES NORTH OF WORLAND, WYO.

Aug. 23, 1950............. | 372 | 3,460 |

e Estimated.

0.07 

.07 

.06 

.05 

.02

.01 

.09 

.60 

.19 

.16

.49

.85

12

1.0

.25

.73

.82

.56

3.4

1,180

1,540

736

1,330

1,340

1,040

456

556

7.7

2,750

3,430

1,430

1,640

3,380

3,480
YELLOWSTONE RIVER BASIN 187

YELLOWSTONE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN YELLOWSTONE RIVER BASIN Continued 

Periodic determinations of suspended-sediment discharge, water year October 1949 to September 1950 Continued

Date

Instantaneous 

water discharge 

(second-feet)

Suspended sediment

Mean 

concentration 

(ppm)

Instantaneous 

discharge 

(tons per day)

.BIGHORN CANAL, 2 MILES SOUTHWEST OF MANDERSON , WYO.

Aug. 23, 1950 ............ 198 3,780 2,020

BIGHORN CANAL, 1 MILE WEST OF BASIN, WYO.

Aug. 23, 1950. ............ | 46 3,390 421

BIGHORN CANAL, 3j MILES SOUTHWEST OF GREYBULL, WYO.

Aug. 23, 1950. ............ e!2 4,100 133

LOWER HANOVER CANAL, 4j MILES SOUTH OF WORLAND, WYO.

Aug. 3, 1950. ............. e!43 2,440 £42

LOWER HANOVER CANAL, 4 MILES SOUTH OF WORLAND, WYO.

Aug. 3, 1950..............

Sept. 13 ..................

143 

108

2,500 

6,280

965 

1,830

LOWER HANOVER CANAL, li MILES SOUTH OF WORLAND, WYO.

Aug. 3, 1950 ............. 109 2, 760 812

LOWER HANOVER CANAL, 2 MILES NORTHEAST OF WORLAND, WYO.

Aug. 3, 1950 ............. 106 2,690 770

LOWER HANOVER CANAL, 6 MILES NORTHEAST OF WORLAND, WYO.

Aug. 3, 1950. ............. 68.3 2,610 481

NOWATER CREEK, 4 MILES SOUTH OF WORLAND, WYO.

Sept. 13 ..................

14.4 

60

2,680 

7,730

104 

1,250

FIFTEENMILE CREEK AT WORLAND, WYO. (100 FEET UPSTREAM FROM MOUTH)

Oct. 6, 1949 ..............

Oct. 14 ..................

May 8, 1950 ..............

Aug 1

Sept. 13 ..................

43.5 

25.2 

e20 

13.4 

e20

738 

374 

40, 400 

2,450 

27, 100

87 

25 

2,260 

89 

1,460

SLICK CREEK, 3i MILES NORTHEAST OF WORLAND, WYO.

Sept. 1, 1950 .............

Sept. 13 ..................

e4 

10.7 

e35

295 

662 

5,280

3.2 

19 

499

NOWOOD CREEK NEAR TENSLEEP, WYO.

Apr. 10, 1950 ............ 236 3,960 2,520

NOWOOD CREEK AT MANDERSON, WYO.

Aug. 9, 1950. .............

Sept. 6 ...................

95.7 

66.1

12

7

3.1 

1.2

ELK CREEK 5 MILES SOUTH OF BASIN, WYO.

Oct. 11, 1949 :............

Sept. 13, 1950 ............

110 

e20

2,830 

8,280

840 

447

ANTELOPE GREEK 2 MILES SOUTH OF BASIN, WYO.

Oct. 11, 1949.............

Sept. 13, 1950............

el 

e4

92 

2,400

0.2 

26

GREYBULL RIVER NEAR BASIN, WYO.

Aug. 24, 1950. ............

Sept. 13 ..................

58.9 

166

98 

256

16 

115

DRY CREEK AT GREYBULL, WYO. (100 FEET UPSTREAM FROM MOUTH)

Oct. 12, 1949 .............

Apr. 12, 1950. ............

Apr. 26 ..................

May 4 ....................

May 10 ...................

e Estimated .

40.4 

10.5 

12 

e!8 

41.9

51 

3,020 

158 

8,880 

4,360

6 

86 

5.1 

432 

494
188 MISSOURI RIVER BASIN

YELLOWSTONE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN YELLOWSTONE RIVER BASIN Continued 

Periodic determinations of suspended-sediment discharge, water year October 1949 to September 1950 Continued

Instantaneous

water discharge

(second-feet)

Suspended sediment

Mean 

concentration

Instantaneous

discharge 

(tons per day)

DRY CREEK AT GREYBULL, WYO. (100 FEET UPSTREAM FROM MOUTH) Continued

May 25, 1950 ............. 47.0 2,860

June 6 ................... e 60 2,590

July 18................... 55.1 960

Aug. 2 ................... 35.4 55'

Sept. 6 ................... ______________55.9 _ ______________208

SHOSHONE RIVEh AT BYRON, WYO.

Aug. 10, 1950 ............ I1,060I197~

Sept. 20 ................. |_____________823 |______________116

ALKALI CREEK AT RALSTON, WYO.

Oct. 7, 1949.............. 10~2563~

Oct. 12................... 10.2 366

June 7, 1950.............. e 50 17,200

July 18 ................... 36.0 5,890

Aug. 1 ................... ______________6.81 ______________318

BITTER CREEK, HALF A MILE WEST OF GARLAND, WYO.

Oct. 7, 1949.............. 153 130 "

Oct. 12...................____________190

BITTER CREEK NEAR GARLAND, WYO. (A MILES SOUTHEAST OF GARLAND)

June 7, 1950..............278806

July 18................... 257 424

Aug. 1 ................... _____________344 ______________548

SAGE CREEK NEAR LOVELL, WYO.

Oct. 7, 1949.............. ^ 1,820

Oct. 12................... 181 1,070

Apr. 13, 1950 ............ 52. 7 3, 530

Apr. 25 .................. 50.3 1,960

May 9.................... 93.0 5,680

May 22 ................... 90. 2 5,030

June 7 ................... 130 3,800

July 18................... 158 2,960

Aug. 1 ................... 142 2,500

Sept. 7 ................... _____________173 _____________1,550

e Estimated.

363

420

143

53

31

564

258

16

10

2,320

572

5.

54

113

605

294

509

1,050

523

502

266

1,430

1,220

1,330

1,260

958

724
LITTLE MISSOURI RIVER BASIN 

LITTLE MISSOURI RIVER AT ALZADA, MONT.

LOCATION. At bridge on U. S. Highway 212, 1 mile northwest of Alzada, Carter County, 2 miles upstr

upstream from gaging station near Alzada. 

DRAINAGE AREA. 780 square miles (above gaging station). 

RECORDS AVAILABLE. Water temperatures: June 1949 to September 1950.

Sediment records: March 1949 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum, 76"F July 9; minimum, freezing point on many days 

Sediment concentrations: Maximum daily, 9,280 ppm Aug. 14; minimum daily, no flow Nov. 26 to Dec

Sediment loads: Maximum daily, 17,600 tons May 10; minimum daily, 0 tons Nov. 26 to Dec. 2. 

EXTREMES, March 1949 to September 1950. Sediment concentrations: Maximum daily, 20,100 ppm May 21, 

Sediment loads: Maximum daily, 17,600 tons May 10, 1950; minimum daily, 0 tons on many days each 

REMARKS. Discharge records for gaging station near Alzada for water year October 1949 to September 

inflow between sampling point and gaging station except during periods of heavy local rains.

Chemical analyses, in parts per million, December 1949 to July 

Date of collection

Dec 5 1949

July 17 .............

Discharge 

(secondfeet)

0.2 

8.2 

408 

39 

1.4

Temperature 

(*F)

PH

7.6 

7.2 

7.0 

7.3 

7.2

Specific 

conductance 

(micromhos at 

25° C)

1,500 

547 

860 

1,150 

861

Silica 

(SiO,)

9.0 

20 

19 

9.3 

11

Iron 

(Fe)

0.02 

.02 

.04 

.04 

.06

Calcium 

(Ca)

103 

31 

49 

78 

54

Magnesium 

(Mg)

37 

12 

28 

43 

17

Sodiuzn 

(Na)

Potassium 

(K)

211

70 

96 

135 

110

Bicarbonate 

(HCOS )

298 

92 

80 

132 

110

Sulfate 

(S04)

585 

190 

360 

530 

333

Chloride 

(Cl)

7.0 

2.0 

2.0 

2.0 

2.5
190 MISSOURI RIVER BASIN

LITTLE MISSOURI RIVER BASIN Continued 

LITTLE MISSOURI RIVER AT ALZADA, MONT. Continued

Temperature (°F) of water, water year October 1949 to September 1950 

.ZOnce-daily temperature measurement at approximately 8:00 a. mj

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

Average

Oct.

55

54

52

55

64

53

44

45

50

52

47

47

45

44

49

38

41

38

37

42

42

47

43

44

39

47

Nov.

45

45

42

44

46

42

48

46

46

43

43

40

41

38

40

38

36

42

40

35

35

39

38

40

39

40

42

38

41

Dec.

36

37

36

32

36

38

..

--

_

_

--

--

..

--

--

Jan.

32

Feb. Mar.

32

Apr.

_

32

32

41

33

33

36

35

37

40

40

47

50

50

42

40

40

48

45

48

40

40

40

38

34

35

--

40

May

38

42

36

36

36

42

40

40

40

46

50

54

53

57

57

58

54

59

53

--

68

55

61

57

60

60

60

60

60

55

51

June

58

58

58

63

63

60

60

60

55

63

68

75

75

72

65

62

60

60

65

68

70

68

64

60

60

65

63

64

65

B4

July

68

69

67

65

64

66

70

72

76

70

70

62

62

65

68

60

60

62

72

68

68

66

65

68

66

70

70

70

70

65

60

67

Aug.

50

65

68

70

68

70

66

70

70

68

68

68

67

60

65

70

60

65

60

60

60

62

62

63

60

60

61

60

60

60

64

Sept.

65

65

65

65

65

68

68

60

58

55

50

40

50

50

50

48

50

50

55

58

55

50

50

55

55

55

50

50

45

40

--

55
LITTLE MISSOURI -RIVER BASIN

LITTLE MISSOURI RIVER BASIN Continued

LITTLE MISSOURI RIVER AT ALZADA, MONT. Continued

Suspended sediment, water year October 1S49 to Septemoer Ia50

191

Day

19

1ft

9ft

99

Oq

25 

28

31 ......

Totalq

19

1fl

22 ------ 

23- 

24 ------ 

25 

26 ------ 

27 

28 

29 .... _. 

30 

31 

TotalOctober

Mean

charge 

(secondfeet)

0.

.2 

.2 

.2

.2 

.2 

.2 

.1 

.1

. 1 

. 1 

.1

.2 

.3

.2 

.2 

1.4 

11 

22

14 

5.3 

.6 

.3 

.2 

.3

58.4

Suspended sediment

Mean 

concentration 

(ppm)

22

11 

13

} -

36

540 

390

330 

240 

233

250 

260

Tons

per 

day

(t)

(t)

(t) 

(t)

(t) 

e7. 5 

16 

23

12 

3.4 

.4 

e.2 

.1 

.2

63.0

January

0.1 

.1

.1

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1

3.1

(t)

0.2

November

Mean

discharge 

(second - 

feet)

0.2 

.2 

.2 

.2 

.2

.2 

.1 

. 1 

. 1 

. I

.1 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

0 

0 

0 

0 

0

3.1

Suspended sediment

Mean 

concen - 

tration 

(ppm)

230 

140 

122

33

25

14

Tuns 

per 

day

0.1 

. 1 

. 1

(t) 

W

(t)

0 

0 

0 

0 

0

0.4

February

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.2 

.3 

.3 

.4 

5 

10

15 

18 

20 

24 

20 

18 

18 

18

168.7

. W

e2 

e!3 

e28

. e40

320

December

Mean

charge 

(secondfeet)

0 

0 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

. 1 

.1

.1

.1 

.1 

.1 

.1

.1 

.1 

.1 . 1 

.1

.1 

.1 

.1 

.1 

.1 

.1

2.9

Suspended seditrent

Mean 

concentration 

(ppm)

20

Tors 

pe~ 

da:'

0 

0

(t) 

(t)

0.2

March

16 

14 

30 

20 

15

13 

10 

12 

12 

10 

 9.8 

9.7 

10 

10 

15 

22 

26 

20 

30 

34

39 

50 

43 

69 

93 

76 

69 

69 

59 

46 

65

1,016.5

570

e30 

e24 

e60 

e40 

e28

e20 

e!3 

18 

e!8

I e!3

e28 

e46 

e55 

e40 

e60 

e70

e80 

e200 

e90 

e300 

e240 

e!80 

e!60 

elSO 

e!30 

elOO 

elSO

2,400

e Estimated.

t Less than 0.1 ton.
192 MISSOURI RIVER BASIN

LITTLE MISSOURI RIVER BASIN Continued

LITTLE MISSOURI RIVER AT ALZADA, MONT. Continued

Suspended seduhent, water year Octooer 1946 to September 1950 Contiauej

Day

1ft

229«

no

no

29

31 ----- -

Total2

g

21

90

24 

25 

26 

27 

28 

29 

30 

31 

Total -

April

Mean

charge 

(secondfeet)

78 

250 

700 

1,450 

1,250

1,010 

1,070 

1,060 

1,420 

1,370

1,300 

1,700 

1,210 

904 

776

728 

674 

436 

220 

146

100 

71 

55 

51 

52

59 

62 

65 

66 

57

18,390

Suspended sediment

Mean 

concentration 

(ppm)

1,800 

2,880 

2, tOO 

2,630

3,100 

3,470 

3,780 

3,250 

2,430

2,180 

1,900 

2,560 

3,630 

3,b40

2,550 

2,460 

2,000 

l,4i>0 

830 

430 

300 

200 

158 

130 

142 

115

102 

87

-

Tons 

per 

day

a 200 

1,220 

5,440 

10, 200 

8,880

8,450 

10,000 

10,800 

12, 300 

8.J90

7,650 

8,720 

8,360 

8,860 

7,630

0,010 

4,480 

2,350 

861 

327

116 

58 

30 

22 

18

23 

19 

a 20 

18 

13

131,300

July

1.4 

1.3 

1.8 

1.3 

1.2

1.3 

1.4 

1.3 

1.4 

1.2 

1.1 

1.2 

1.1 

1.2 

1.2

1.6 

13 

26 

56 

32

17 

5.6 

1.6 

1.1 

.8 

.9 

.9 

.9 

.9 

.8 

.8

179.3

41

1-

50

138 

390 

616 

236 

90 

62 

28

I 36

1"

0.2 

.2

.2

si. 3

14 

s81 

s37 

7.8

2.8 

.4

.1 

.1

148

Total discharge for year {second-foot-day 

Total ioad for year (tons) ...............

May

Mean

charge 

(secondfeet)

65 

240 

281 

26!) 

392

t>50 

632 

584 

406 

1,180

1,240 

1,100 

444 

141 

105

110 

94 

80 

56 

42

30 

22 

17 

13 

12

12 

11 

10 

9.5 

8.8 

8.1

8,264.4

Suspended sediment

Mean 

concentration 

(ppm)

490 

2,870 

1,770 

1,420 

2,040

3,890 

3,380 

2,650 

2,920 

5,520

4,150 

2,570 

2,840 

1,460 

630

950 

5,200 

1,350 

500 

178

107 

84 

76 

77 1:

42 

46

Tons 

per 

day

86 

s2,030 

1,340 

1,030 

2,lbJ

6,830 

0,770 

4,180 

s3,350 

17,600

13,900 

7,630 

s3,560 

556 

179

282 

1,320 

292 

76 

20

8.7 

5.0 

3.5 

2.7

1.4

el. 2 

1.0 

1.0

72,220

August

0.8 

.8 

.9 

.9 

.8

.8 

.8 

,8 

.9 

.9

.9 

1.1 

72 

191 

432 

327 

48 

22 

11 

6.1 

2.5 

1.6 <:2

.a

.8 

.8 

.7 

.7 

.7 

.7

1,130.7

53

} 114

9,280 

4,930 

1,980 

1,000 

450 

360 

260

172 

123 

95

68 

50

0.1

.3

e2,300 

s4,880 

s5,590

s 1, 870 

130 

27 

11 

4.3 

1.2 

.5 

.2

.2 

.1

14,820

June

Mean

charge 

(secondfeet)

7.4 

6.7 

6 

5.3 

4.6

3.9

3.2 

2.8 

3.4 

3.4

2.7 

2.5 

2.3 

2.3 

1.4

1.4 

1.6 

1.8 

2.5 

2.5

6.6 

11 

7.9 

5.3 

40

13 

4.5 

1.6 

1.3 

1.1

160.0

Suspended sediment

Mean 

concentration 

(ppm)

56 

50 

38 

39 

45

40 

40 

44 

38 

41

I 80

1 '

62 

42

73 

77 

62 

70 

1,210

290 

54

1 33

-

Tons 

per 

day

1.1 

.9 

.6 

.6 

.6

.5 

.3 

.3 

.3 

.4

.5

.3

.4 

.3 

1.3 

2.3 

1.3 

1.0 

s!60

10 

.7

.1

186

September

0.6 

.6 

.6 

.6 

.6

.6 

.0 

.4 

.3 

.4

.4 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.5 

.5 

.5 

.5 

.5 

.5 

.5 

.5 

.5

16.2

24 

16

--

5) ...................................................

..................................................... 2

(t) 

(t)

0.9

29,393.3 

21,500

e Estimated.

s Computed by subdividing day.

t Less thryi 0.1 ton.
LITTLE MISSOURI RIVER BASIN Continued 

LITTLE MISSOURI RIVER AT ALZADA, MONT. Cont

Particle-size analyses of suspended sediment, April 1949 to A

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanical

Date of collection

May 5

May 7 *

Mau 17

Aue. 16 .................

Time

3:45 p.m.

5:00 p. m. 

12:00 m. 

5:00 p. m. 

5:30 p. m. 

5:00 p. m.

5:00 p. m. 

8:00 a. m. 

5:00 p. m. 

8:00 a. m. 

8:00 a.m.

8:00 a.m. 

1:00 p.m. 

6:00 p.m. 

7:00 a. m. 

4:40 p.m.

4:40 p.m. 

8:00 D. m.

Discharge 

(secondfeet)

549

738 

904 

289 

424 

616

347 

1,280 

1,290 

536 

97

57 

8.7 

27 

178 

512

S12 

113

Suspended se

Concentration 

of sample 

(ppm)

3,930

2,560 

4,230 

4,120 

2,300 

3,660

3,090 

6,480 

3,920 

3,390 

13,000

1,220 

1,770 

1,440 

11,600 

4,110

4, 1J.O 

1.660

Concentration 

of suspension 

analyzed 

(ppm)

1,320

1,880 

2,880 

2,500 

1,510 

2,310

2,100 

3,940 

2,450 

2,150 

3,980

1,390 

1,090 

909 

3,550 

5,060

4,680 

2.370

Percent fine

0.002

37

70

5 

82

0.004

60

70 

75 

74 

79 

76

73 

73 

77 

71 

85

93 

91 

97 

87 

82

13 

90

0.008

74

95

98 

93 

98

89

88 

94

0.016

90

94 

93 

96 

93 

92

86 

90 

96 

89 

98

99 

97 

99 

100 

94

97 

99
LITTLE MISSOURI RIVER BASIN Continued 

LITTLE MISSOURI RIVER AT MARMARTH, N. DAK.

LOCATION. At gaging station at bridge on U. S. Highway 12 in Marmarth, Slope County, li miles down

DRAINAGE AREA. 1,570 square miles.

RECORDS AVAILABLE. Chemical analyses: December 1949 to September 1950.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply 

Chemical analyses, in parts per million, December 1949 to Septem

Date of collection

Mar. 5, 1950 ........

June 23 ..............

Sept. 11 .............

Discharge 

(secondfeet)

0.3 

4,010 

1,000 

5,600 

2,730

13,600 

6,440 

6,110 

1,970 

4,080

64 

39 

92 

13

Temperature 

(°F)

PH

8.1 

7.0 

7.8 

7.4 

6.7

8.1 

7.3 

7.3 

7.5 

7.5

7.8 

8.0 

7.8 

8.2

Specific 

conductance 

(micromhos at 

25* C)

2,570 

335 

260 

209 

187

281 

329 

367 

499 

522

1,400 

1,530 

1,150 

1,620

Silica 

(Si02)

15 

19 

20 

10 

8.0

13 

12 

12 

11 

12

13 

13 

16 

13

Iron 

(Fe)

0.06 

.06 

.16 

.04 

.16

.02 

.14 

.04 

.04 

.04

.08 

.06 

.16 

.02

Calcium 

(Ca)

46 

24 

18 

30 

15

21 

39 

37 

40 

40

52 

43 

18 

53

Magnesium 

(Mg)

46 

6.7 

4.6 

4.7 

3.5

4.1 

7.6 

7.4 

11 

9.7

24 

18 

5.8 

22

Sodium 

(Na)

Potassium 

(K)

533 

39 

32 

4.8 

19

34 

18 

29 

49 

58

256 

294 

244 

290

Bicarbonate 

(HCO.)

656 

84 

64 

80 

68

110 

120 

112 

112 

120

287 

345 

303 

354

Sulfate 

(SOJ

885 

95 

73 

32 

34

48 

64 

86 

151 

158

508 

505 

328 

523

Chloride 

(Cl)

2.0 

1.5 

1.0 

2.0 

.0

.5 

1.0 

1.0 

1.0 

1.0

11 

6.5 

3.5 

10
LITTLE MISSOURI RIVER BASIN 195

LITTLE MISSOURI RIVER BASIN Continued

LI11LE MISSOURI RIVER AT MARMARTH, N. DAK..--Continued

Periodic determinations ot suspended-sediment discharge, water year October 1949 to September 1950

Date

Oct. 10, 1949 .............

Oct. 28...................

Nov. 18 ..................

Dec. 2 ...................

Mar. 5, 1950. .............

Mar. 7 ...................

Mar. 8 ...................

Mar. 13 ..................

Apr. 3 ...................

Apr. 4 ...................

Apr. 8 ...................

Apr. 10 ..................

Apr. 11 ..................

Apr. 13 ..................

Apr. 17 ..................

Apr. 20 ..................

Apr. 28 ......... ....

May 9 ....................

May 31 ...................

June 23 ...................

June 27 ...................

July 6 ...................

July 17 ...................

Aug. 14. ..................

Sept. 11 ..................

Instantaneous 

water discharge 

(second-feet)

94 

40 

6.5 

5.8 

a4,000

a 1,700 

a 1,000 

a 200 

5,850 

2,730

13,600 

7,490 

13, 100 

7,400 

6,220

6,440 

6,010 

1,970 

585 

4,180

122 

62 

203 

52 

39

88 

13

Suspended sediment

Mean 

concentration 

(ppm)

5,520 

2,060 

88 

79 

3,300

1,780 

1,150 

208 

2,260 

926

3,900 

4,710 

2,980 

5,150 

2,540

3,020 

5,610 

2,810 

1,720 

3,880

98 

80 

7,890 

66 

192

6,410 

70

Instantaneous 

discharge 

(tons per day)

1,400 

2S.2 

1.5 

1.2 

35, 6f«

8.1TO 

3,100 

112 

35,700 

6,830

143,000 

95, 200 

105,000 

103,000 

42,700

52, 500 

91.0HO 

14,910 

2,720 

43, 810

32 

13 

4,3^0 

9.3 

20

1,5-JO 

2.5

a Mean dally discharge.
LIT1LE MISSOURI RIVER BASIN Continued 

LITTLE MISSOURI RIVER AT MARMARTH, K. DAK. Cont

Particle-size analyses of suspended sediment, October 1949 to A

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Oct. 28 .................

Mar. 5, 1950 ...........

Mar. 7 .................

Mar. 8 .................

Apr. 4 .................

Apr. 10 ................

Apr. 11 ................

Apr. 11 ................

Apr. 13 ................

Apr. 20 ................

Apr. 28 ................

May 9 ..................

Aug. 14 ................

Time

5:30 p.m. 

10:00 a. m. 

4:45 p. m. 

12:45 p.m. 

1:20 p. m.

3:00 p. m. 

2:15 p.m. 

1:40 p.m. 

11:30 a.m. 

3:00 p. m.

11:30 a.m. 

11:30 a.m. 

3:00 p. m. 

5:00 p.m. 

4:45 p. m.

1:30 p. m. 

11:45 a.m. 

1:30 p.m.

Discharge 

(secondfeet)

94 

40 

a 4, 000 

al,700 

a 1,000

5,850 

2,730 

7,490 

13, 100 

7,400

6,220 

6,220 

6,440 

1,970 

585

4,180 

203 

88

Suspended sedim

Concentration 

of sample 

(ppm)

5,520 

2,060 

3,300 

1,780 

1,150

2,260 

926 

4,710 

2,980 

5,150

2,540 

2,540 

3,020 

2,810 

1,720

3,880 

7,890 

6,410

Concentration 

of suspension 

analyzed 

(ppm)

2,410 

1,530 

9,840 

2,420 

2,510

5,300 

2,700 

8,630 

9,390 

15, 500

2,020 

1,710 

8,990 

5,060 

3,980

8,920 

4,670 

7,660

Percent finer t

0.002

84 

82

37 

28

82

0.004

93 

93 

45

57 

96

49 

62 

47 

63 

47

54 

46 

62 

58 

87

60 

96 

98

0.008

97 

98

67 

60

98

0.016

98 

98 

67 

64 

100

63 

74 

65 

82 

65

82

75 

82 

72 

95

72 

98 

100

0.0

a Mean daily discharge.
LITTLE MISSOURI RIVER BASIN Continued 

LITTLE MISSOURI RIVER AT MEDORA, N. DAK.

LOCATION. At gaging station at bridge on U. S. Highway 10, a quarter of a mile west of Medora, Bill

DRAINAGE AREA.--6,190 square miles.

RECORDS AVAILABLE. Chemical analyses: March 1947 to September 1950. 

Water temperatures: March 1947 to September 1949. 

Sediment records: March 1946 to September 1950.

Maximum, ooo ppm reo. x to roar, a, J.»i»; minimum, 13 ppm Mar. 10, j-a^o.

e (1947-49): Maximum daily, 4,770 micromhos Jan. 1,2, 1949; minimum daily, 244 

(1947-49): Maximum, 92°F Aug. 2, 9, 1947; minimum, freezing point on many days 

Specific conductance (1947-49) :

: axmum, * r tug. £» »» xvii; minimum, ireezing puim. uu many uays 

Sediment concentrations: Maximum daily, 35,400 ppm June'16, 1948; minimum daily, no flow Dec. 23, 

Sediment loads: Maximum daily, 616,000 tons Apr. 16, 1950; minimum daily, 0 tons Dec. 23, 1949, t

REMARKS . Records of discharge for water year October 1949 to September 1950 given in Water-Supply P

Chemical analyses, In parts per million, water year October 1949 to Se

Date of collection

Nov. 11. ...........

Mar. 5, 1950 ......

Mar. 23 ...........

Aug. 24 ...........

Sept. 7 ............

Discharge 

(secondfeet)

155 

158 

38 

5,700 

1.660

17, 700 

8,180 

2,480 

*168 

202

245 

29

Temperature 

<"F)

pH

7.7 

7.6 

8.3 

7.6 

6.9

7.6 

7.6 

7.4 

7.8 

7.5

7.6 

8.1

Specific 

conductance 

(micromhos at 

25" C)

1,400 

1,340 

1,960 

394 

369

403 

391 

513 

1,370 

1,120

1,190 

1,750

Silica 

(S10.)

26 

12 

15 

18 

9.4

12 

18 

11 

11 

13

13 

17

Iron 

(Fe)

0.04 

.02 

.06 

.06 

.02

.02 

.06 

.02 

.02 

.10

.04 

.02

Calcium 

(Ca)

29 

67 

60 

36 

31

34 

45 

36 

75 

26

45 

70

Magnesium 

(Mg)

11 

23 

30 

9.2 

8.5

7.8 

8.5 

12 

25 

8.9

16 

27

Sodium 

(Na)

Potassium 

(K)

294 

236 

375 

52 

34

43 

32 

55 

227 

207

205 

301

Bicarbonate 

(HCO,)

347 

530 

a459 

152 

130

164 . 

140 

124 

305 

238

209 

358

Sulfate 

(SOJ

433 

290 

663 

110 

74

70 

93 

146 

500 

338

423 

608

Chloride 

(Cl)

9.0 

25 

14 

1.0 

.0

.5 

1.5 

1.0 

7.4 

.5

6.0 

7.5

a Includes equivalent of 12 parts per million of carbonate (COj).
198 MISSOURI RIVER BASIN

LITTLE MISSOURI RIVER BASIN Continued 

LITTLE MISSOURI RIVER AT MEDORA, N. DAK. Continued

Suspended sediment, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5 

6 

7... 

A.-----.

9 

10 

11 

12 

fOjd------

14 

15 

16 

17 

Ifl JO------

19 

20 

21 

22 

23 

24 

25 

26 

27 

28------

29 ...

SO 

31 

Total1 

2 

3 

4 

S 

7 

g 

10 

11 

12------

13 

14 

15 

16 

17 

inu------ 

19 _ _

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

so 

31 

TotalOctober

Mean

discharge 

(secondfeet)

24 

19 

28 

64 

104

115 

95 

100 

111 

97

151 

115 

116 

107 

82

66 

59 

54 

51 

50 

48 

85 

106 

72 

94

132 

151 

134 

107 

97 

80

2,714

0

Suspended sediment

Mean 

concentration 

(ppm)

13, 700 

1,300 

9,100 

9,580 

23,800

25,000 

22, 600 

15,500 

12,600 

11,100

10, 700 

10, 700 

10,100 

7,600 

6,200

4,800 

4,900 

4,800 

4,100 

2,700 

2,300 

3,800 

4,600 

6,100 

3,700

5,200 

7,800 

6,200 

5,300 

4,400 

4,400

-

January

Tons 

per 

day

s972 

67 

688 

s2, 150 

6,680

7,760 

5,800 

4,200 

3,780 

2,910

4,360 

3,320 

3,160 

2,200 

1,370

855 

781 

700 

565 

364

298 

872 

1,320 

1,190 

939

1,850 

3,180 

2,240 

1,530 

1,150 

950

68,200

0

November

Mean

discharge 

(secondfeet)

65 

55 

51 

49 

44 

41 

40 

38 

33 

32

38 

33 

29 

28 

28

28 

28 

25 

23 

16

18 

19 

18 

15 

13 

22 

24 

22 

25 

11

911

Suspended sediment

Mean 

concentration 

(ppm)

4,070 

3,520 

2,260 

1,640 

1,200 

1,240 

1,060 

1,140 

760 

680

530 

450 

540 

420 

450

220 

330 

320 

750 

500

230 

220 

200 

290 

220

600 

220 

410 

350 

220

-

Tons 

per 

day

714 

523 

311 

217 

143

137 

114 

117 

68 

59

54 

40 

42 

32 

34

17 

25 

22 

47 

22 

11 

11 

10 

12 

8

36 

14 

24 

24

7

2,900

February

0 -- 0

D-iember

Mean

discharge 

(secondfeet)

12 

18 

22 

14 

18

12 

8 

5 

3 

2

1 

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1

0 

0 

0 

0 

0 

0 

0 

0 

0

126

Suspended sediment

Mean 

concentration 

(ppm)

150 

150 

320 

140 

120 

90 

50

90

-

Tons 

per 

day

5 

7 

19

5 

6 

3

1

(t)

0 

0 

0 

0 

0 

0 

0 

0 

0

52

March

0 

0 

10 

100 

4,000

7,000 

4,500 

1.25& 

950 

350 

180 

120 

70 

85 

100

100 

200 

250 

200 

180 

300 

1,100 

1,700 

1,700 

1,800

1,600 

820 

620 

480 

450 

450

30, 665

3,200 

3,000

3,800 

2,900

1,600 

1,100

140

170

120 

150 

110

80 

120 

540 

900 

1,100 

1,300 

850 

640 

680 

550 

1,060 

1,020

0 

0 

elO 

864 

32,400

71,800 

35,200 

e6,000 

4,100 

1,040 

eSOO 

elSO 

e30 

32 

46

32 

81 

74 

eSO 

39 

97 

1,600 

4,130 

5,050 

6,320

3,670 

1,420 

1,140 

713 

1,290 

1,240

179, 100

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.
LITTLE MISSOURI RIVER BASIN 

LITTLE MISSOURI RIVER BASIN Continued 

LITTLE MISSOURI RIVER AT MEDORA, N. DAK.--Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

199

Day

12

1C

ift

9«

24

go

29

31 ......

Total18

21 

22 

23 

24 ----- 

25 

26 

27 ... ... 

28 

29 

30 ------ 

31 ......

Total

April

Mean

charge

(secondfeet)

550 

1,500 

5,400 

6,000 

4,500

5,000 

16,100 

23, 300 

14, 900 

10,900 

8,870 

8,180 

8,400 

8,400 

12, 600

19,000 

15,200 

9,620 

5,800 

3,660

2,580 

2,040 

1,680 

1,460 

1,400

1,680 

1,460 

1,150 

950 

900

203, 180

194 

148 

131 

135 

121

94 

80 

71 

61 

51

42 

140 

248 

207 

182

148 

121 

101 

86 

70 

58 

58 

70 

83 

70

58 

56 

6,3 

83 

80 

70

3,180

Suspended sediment

Mean 

concentration 

(ppm)

1,170 

3,100 

4,400 

3,800 

3,700

5,800 

8,960 

8,100 

6,100 

7,700

8,200 

7,400 

7,500 

8,100 

10,300

12,000 

10,200 

7,000 

5,300 

5,000

4,200 

2,900 

2,300 

2,800 

3,200

6,300 

5,000 

4,800 

4,100 

2,400

Tons 

per 

day

1,740 

12, 600 

64, 200 

61,600 

45,000

78, 300 

408, 000 

510, 000 

245,000 

227, 000

196, 000 

163, 000 

170, 000 

184, 000 

350,000

616, 000 

419,000 

182, 000 

83,000 

49,400 

29, 300 

16,000 

10, 400 

11,000 

12, 100

28, 600 

19, 700 

14, 900 

10,500 

5,830

4,224,000

July

4,100 

3,200 

2,800 

1,700 

660

450 

410 

180 

100 

80 

110 

1,080 

24,000 

22,000 

13,000

8,100 

6,400 

1,650 

610 

400 

710 

1,350 

650 

430 

250

140 

100 

130 

4,300 

5,400 

6,000

2,150 

1,280 

990 

620 

216

114 

89 

34 

16 

11

12 

S516 

16, 100 

12,300 

6,390

3,240 

2,090 

450 

142 

76

111 

211 

123 

96 

47 

22 

15 

22 

964 

1,170 

1,130

50,750

May

Mean

charge 

(secondfeet)

900 

850 

750 

850 

850

800 

1,000 

2,430 

4,960 

4,860

5,420 

5,040 

4,680 

4,150 

3,340

2,880 

2,300 

1,680 

1,200 

850

660 

545 

480 

400 

355

335 

315 

280 

264 

248 

220

53, 892 _,

58 

52 

45 

40 

40

39 

36 

31 

114 

182

133 

336 

228 

131 

117 

96 

80 

182 

207 

170 

170 

234 

315 

234 

170 

144 

125 

101 

85 

74 

70

4,039

Suspended sediment

Mean 

concentration 

(ppm)

1,500 

2,100 

1,700 

1,600 

1,450

5,250 

8,400 

8,000

8,000 

7,800 

7,100 

5,300 

4,400

4,900 

4,800 

3,700 

2,600 

1,850

1,570 

1,300 

780

550

500 

370 

350 

430 

290 

200

-.

Tons 

per 

day

3,640 

4,820 

3,440 

3,670 

3,330

eS.OOO 

e 10, 000 

34,400 

112,000 

105,000 

117,000 

106, 000 

89, 700 

59,400 

39, 700

38, 100 

29, 800 

16, 800 

8,420 

4,250 

2,800 

1,910 

1,010 

e700 

527

452 

315 

265 

307 

194 

119

801, 100

August

2,100 

570 

180 

180 

170

160 

110 

60 

5,700 

19,500

12,100 

24,000 

13,400 

6,000 

4,400

3,000 

6,700 

8,600 

10, 600 

7,000 

3,700 

2,700 

3,900 

3,000 

2,250 

2,000 

1,550 

1,350 

950 

530 

390

329 

80 

22 

19 

18

17 

11 

5 

S2.830 

9,580

4,340 

s 23, 800 

s8, 680 

2,120 

1,390

778 

1,450 

4,230 

5,920 

3,210 

1,700 

1,710 

3,320 

1,890 

1,030 

778 

523 

368 

218 

106 

74

80, 550

June

Mean

charge 

(secondfeet)

194 

170 

170 

170 

148

135 

131 

159 

170 

170

170 

170 

159 

159 

170

194 

220 

194 

170 

144

125 

111 

109 

127 

220

264 

516 

451 

280 

220

5.790

Suspended seliment

Mean 

concentration 

(ppm)

170 

120 

150 

90 

80

80 

670 

470 

2,000 

1,100

270 

180 

150 

1,100 

920

700 

4,300 

3,000 

2,800 

1,700

600 

280 

220 

300 

8,100

17,000 

18,500 

21,000 

18,500 

10,000

..

Tons 

per 

day

89 

55 

69 

41 

32

29 

237 

202 

918 

505

124 

83 

64 

472

422

367 

2,550 

1,570 

1,280 

661 

202 

84 

65 

103 

s 5, 430

12, 100 

s 27, 200 

25,600 

14, 000 

5,940

100. 500

September

61 

55 

47 

39 

36

33 

29 

29 

31 

30

32 

127 

82 

57 

71

173 

125 

73 

57 

49 

41 

37 

35 

34 

32 

33 

34 

31 

28 

34

1,575

260 

170 

160 

150 

100

70 

70 

85 

90 

80

65 

60 

290 

6,600 

3,800 

6,300 

6,400 

8,100 

6,000 

4,200 

2,100 

430 

130 

90 

75 

130 

280 

230 

140 

500

43 

25 

20 

16 

10

6 

5 

7 

8 

6 

6 

21 

64 

1,020 

728

2,940 

2,160 

1,600 

923 

556 

232 

43 

12 

8 

6

12 

26 

19 

11 

46

10. 580

Total discharge for year (second-foot-days).................................................... 306,072

Total load for year (tons)..................................................................... 5, 518,000

e Estimated.

s Computed by subdividing day.

326665 O - 55 - 14
LITTLE MISSOURI RIVER BASIN Continued 

LITTLE MISSOURI RIVER AT MEDORA, N. DAK.--Contin

Particle-size analyses of suspended sediment, October 1949 to Aug

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 8, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection

Oct. 3, 1949 ............

Oct. 27 ................

Oct. 27. ................

Nov. 5 .................

Mar. 5, 1950 ...........

Mar. 6 ................

Mar. 9 ................

Mar. 23 ...............

Aor. 3 ................

Time

7:1 5a.m. 

7:15 a. m. 

5:45 p. m. 

7:00 a. m. 

7:15 a.m.

9:00 a. m. 

10:00 a. m. 

7:00 a.m. 

7:00 a. m. 

5:30 p.m.

7:00 a. m. 

5: 15 p.m. 

5:30 p. m. 

5:15 p.m. 

10:45 a. m.

10:45 a.m. 

9:30 a. m. 

3:00 p. m. 

1:00 p. m. 

1:00 p. m.

7:00 a. m. 

4:00 p. m. 

1:30 p. m. 

1:30 p. m. 

2:45 p.m.

12:20 p. m. 

11:20 a. m. 

11:45 a.m. 

3:30 p. m. 

1:10 D. m.

Discharge 

(secondfeet)

30 

30 

120 

130 

94

102 

118 

82 

155 

77

55 

50 

99 

124 

158

158 

100 

55 

44 

44

38 

5,700 

6,860 

6,860 

1,340

1,660 

1,820 

504 

1,610 

4.370

Suspended sedim

Concentration 

of sample 

(ppm)

7,160 

7,160 

13,200 

26,100 

24,600

16,900 

13,300 

11,100 

11,300 

6,200

5,040 

2,440 

4,060 

6,970 

7,770

7,770 

4,460 

3,520 

1,200 

1,200

1,140 

3,680 

4,230 

4,230 

1,720

1,120 

1,230 

1,340 

3,400 

3.890

Concentration 

of suspension 

analyzed 

(ppm)

2,810 

2,940 

2,840 

2,860 

2,730

3,380 

2,940 

2,420 

2,410 

1,350

2,010 

2,280 

1,740 

2,950 

1,890

1,800 

1,890 

2,800 

547 

515

1,000 

5,600 

3,030 

3,020 

2,690

1,150 

1,390 

1,860 

4,270 

2.130

Percent finer th

0.002

2 

33 

56 

78 

86

85 

84 

84 

82 

86

89 

79 

81 

79 

84

3 

79 

72 

79

68

33 

6

0.004

2 

78 

80 

91 

96

97 

95 

97 

93 

97

96 

90 

87 

90 

92

4 

93 

92 

92 

18

92 

38 

40 

14 

59

32 

40 

54 

37 

42

0.008

2

96 

99

99 

99 

99 

98

94

97 

98

9

97 

97 

34

49 

48

0.016

"

100

96

98

99

53 

58 

59 

64

37 

45 

70 

54 

51

0.0
Apr. 7 .................

Apr. 8 .................

Apr. 14 ................

Apr. 21 ................

Apr. 27 ................

May 23 .................

June 27. ................

June 29. ................

July 14 .................

July 14 .................

Aug. 10 ................

12:00 m.

10:10 a. m.

17, 700

22,800

8,180

2,480

714

245

172

9,320

6,920

7,860

22,900

19, 900

7,170

10,600

11,200

4,050

6,120

8,920

8,240

6,890

4,460

3406

46

42

10

56

67

72

916

92

34

41

99

45

55

50

69

82

91

99

99

99
KNIFE RIVER BASIN

KNIFE RIVER AT HAZEN, N. DAK.

LOCATION. At gaging station at county highway bridge, 0.5 mile south of Hazen, Mercer County, and 2 

DRAINAGE AREA. 2,352 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1949 to September 1950.

Sediment records: March to July 1946, April to September 1948. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply Pa

Chemical analyses, in parts per million, water year October 1949 

Date of collection

Sept. 5 ............

Discharge 

(secondfeet)

37 

1,550 

2,570 

4,720 

10, 500 

1,730

357 

117 

50 

72 

44

Temperature

PH

8.1 

7.3 

7.3 

7.2 

7.0 

7.2

8.2 

8.0 

8.0 

7.9 

7.9

Specific 

conductance 

(micromhos at 

25° C)

1,280 

277 

224 

234 

226 

415

899 

1,230 

1,390 

1,350 

1,290

Silica 

(SiO.)

13 

7.7 

7.4 

9.8 

8.6 

9.6

11 

14 

19 

14 

18

Iron

(Fe)

0.06 

.24 

.20

.02 

.02

.10 

.02 

.04 

.04 

.06

Calcium 

(Ca)

28 

23 

15 

22 

19 

27

47 

71 

69 

70 

58

Magnesium 

(Mg)

30 

5.3 

4.7 

5.5 

5.4 

9.0

20 

33 

33 

31 

31

Sodium 

(Na)

Potassium 

(K)

240 

28 

24 

20 

20 

49

130 

196 

228 

208 1 7.3 

216

Bicarbonate 

(HCOS )

458 

101 

76 

108 

96 

162

a 290 

510 

558 

544 

536

Sulfate 

(SOJ

317 

48 

40 

26 

30 

70

230 

298 

325 

315 

283

Chloride 

(Cl)

4.6 

2.0 

.0 

2.0 

.5 

1.0

1.0 

6.6 

3.5 

4.0 

5.0

a Includes equivalent of 6 parts per million of carbonate (CO,).
KNIFE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN KNIFE RIVER BASIN IN 

Chemical analyses, in parts per million, water year October 1949 to S

Date of collection

Discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25" C )

(SiQ.) (Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodiuro 

(Na)

Potassium

(CO,) WCQ.)

Sulfate 

(SO,)

Chlo

ride 

(Cl)

KNIFE RIVER NEAR GOLDEN VALLEY

Aug. 14, 1950 ....... 13 7.9 1,790 12 .04 46 32 337_ 

7.6 0 641 443 5
204 MISSOURI RIVER BASIN

HEART RIVER BASIN 

HEART RIVER NEAR SOUTH HEART, N. DAK.

LOCATION. At gaging station, half a mile downstream from North Creek, three-quarters of a

mile south of U. S. Highway 10, and 2 miles east of South Heart, Stark Ccunty. 

DRAINAGE AREA. 315 square miles.

RECORDS AVAILABLE. Chemical analyses: Hay 1947 to September 1948, March tc September 1949. 

Water temperatures: May 1947 to September 1948, March to September 1949. 

Sediment records: Hay 1947 to September 1950. 

EXTREMES, 1949-50.--Sediment concentrations: Maximum daily, 13,900 ppm Oct. 10; minimum,

daily, not determined. 

Sediment loads: Maximum daily, 8,190 tons Apr. 16; minimum daily, less ttnn 0.1 ton

on many days.

EXTREMES, 1947-50. Sediment concentrations: Maximum daily, 17,300 ppm Aug. 13; 1947; 

minimum daily, not determined. 

Sediment loads: Maximum daily, 8,190 tons Apr. 16, 1950; minimum daily, l?ss than 0.1

ton on many days each year.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in 

Water-Supply Paper 1176.

Suspended sediment, water year October 1949 to September 195fl

Day

12

1« . ..... 

17 ...... 

18 ... 

19 ...... 

20 ----- - 

21 ...... 

22 

23 

24 ...... 

25 .... 

26 ----- - 

27 ... 

28 ------ 

29 

30 ... 

31 ----- - 

TotalOctober

Mean

charge 

(secondfeet)

0.7 

1.0 

1.3 

2.8 

1.7

1.1 

1.3 

1.0 

4.3 

5.8

2.5 

1.6 

1.3 

1.1 

.9

.8 

.8 

.9 

.8 

.8

.9 

.9 

1.0 

7.2 

3.0

1.8 

1.3 

1.1 

.9 

.8 

.9

52.3

Suspended sediment

Mean 

concentration 

(ppm)

93

2,910 

13,900

10,300 

9,500 

11,300 

4,600

2,800 

4,000

32

Tons 

per 

day

0.4

S64 

218

70 

41 

40 

14

e3

e2

54 

32

e.3

561

November

Mean

charge 

(secondfeet)

0.8 

.7 

.6 

.6 

.6

.6 

.6 

.7 

.7 

.7 

.6 

.6 

.6 

.6 

.6

.7 

.7 

.7 

.9 

1.0 

.7 

.6 

.7 

.6 

.6

.7 

.8 

.7 

.7 

.6

20.3

Suspended sediment

Mean 

concentration 

(ppm)

-

Tons 

per 

day

eO.2

6

December

Mean

charge 

(second - 

feet)

0.6 

.5 

.4 

.3 

.3

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

7.4

Suspended sediment

Mera 

concentration 

(ppn)

,

Tons 

per 

day

(t)

2

e Estimated.

a Computed by subdividing day.

t Less than 0.1 ton.
HEART RIVER BASIN 

HEART RIVER BASIN Continued

HEART RIVER NEAR SOUTH HEART, N. DAK.--Continued 

Suspended sediment, water year October 1949 to September 1950 Contlnued

205

Day

g

on

9ft

oo

9Q

Total13

15 ----- -

18

21 

22 

28 

24 

25 

26 

27 

28 

29 

30 

SI 

TotalJanuary

Mean

discharge 

(secondfeet)

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1

4.6

Suspended sediment

Mean 

concentration 

(ppm)

--

Tons 

per 

day

<t)

1

April

IS 

16 

12 

11 

10

12 

41 

104 

143 

69

71 

482 

770 

994 

2,120 

3,740 

2,470 

1,200 

357 

115

75 

72 

61 

79 

73

56 

46 

33 

26 

22

13,295

35 

47 

42 

37 

50

100

140 

160 

62 

72 

210 

230 

382 

708

812 

891 

945 

828 

546

526 

667 

700 

920 

3,880

2,240 

688 

230 

100 

60

-

1 

2 

1 

1 

1

3 

e!5 

39 

62 

12

14 

273 

478 

s 1, 150 

S4.330 

s8, 190 

s5,740 

s3,050 

s810 

170

107 

130 

115 

196 

s754

339 

85 

20 

7

4

26,100

February

Mean

charge 

(secondfeet)

0.1 

.1 

.1 

.1 

.1

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

,2 

.2

5.1

Suspended sediment

Mean 

concentration 

(ppm)

-

Tons 

per 

day

(t)

1

May

21 

24 

22 

24 

25

45 

69 

71 

59 

158

251 

120 

70 

44 

30 

21 

18 

13 

11 

9.5

8.1 

7.1 

6.7 

6.2 

5.8

5.6 

5.0 

4.7 

4.2 

3.9 

3.6

1,166.4

55 

100 

590 

746 

290

599 

1,160 

1,060 

475 

664

1,000 

570 

390 

225 

230 

134 

104 

90 

74

61 

74

~

3 

6 

35 

48 

20

s97 

216 

203 

76 

s315

677 

185 

74 

27 

19 

8 

5 

3 

2

1 

.9

2,030

March

Mean

charge 

(second - 

feet)

0.2 

.2 

.2 

.2 

50

280 

400 

200 

150 

100

60 

35 

20 

13 

10

9 

10 

10 

9 

8

8 

200 

600 

500 

200

90 

100 

90 

40 

22 

21

3,235.8

Suspended sediment

Mean 

concentration 

(ppm) } :

280 

220 

105 

60 

58

60

60

150 

160 

98 

65

45 

43 

40 

33 

43 

35

Tons 

per 

day

eO. 1

elO

212 

238 

57 

24 

16 

10

2

81 

259 

132 

35

11 

12 

10 

4 

3 

2

1,140

June

3.5 

3.5 

3.2 

3.0 

2.9

2.9 

2.9 

3.0 

3.2 

4.6

3.4 

2.9 

2.8 

2.8 

3.6 

3.0 

3.0 

3.0 

2.6 

2.4

2.2 

1.9 

1.7 

2.0 

2.8

7.1 

6.7 

4.1 

3.0 

2.4

96.1

95 

85 

70

--

0.8 

.7 

.6

21

e Estimated.

s Computed by subdividing day.

t Less than 0.1 ton.
206 MISSOURI RIVER BASIN 

HEART RIVER BASIN Continued

HEART RIVER NEAR SOUTH HEART, N. DAK. Continued 

Suspended sediment, water year October 1949 to September 1950--Continued

Day

1ft

19

21-. 

49

n«

OR

OQ

31 ......

TotalJuly

Mean

charge 

(secondfeet)

 2.2 

2.4

2.5 

2.2 

1.9

1.8 

1.7 

1.6 

1.6 

1.4

1.3 

1.3 

1.1 

1.0 

1.0

1.0 

.9 

.8 

.9 

.9 

.9 

.7 

.7 

.7 

.6

.6 

.5 

.5 

.4 

.4 

.5

36.0

Suspended sediment

Mean 

concentration 

(ppm)

68 

96 

95

-

Tons 

per 

day

0.4 

.3 

.2

9.2

August

Mean

charge 

(secondfeet)

0.5 

.5 

.5 

.4 

.6

.3 

.4 

.4

.4 

.6

.9 

1.0 

1.1 

1.0 

.8

.6 

.6 

.5 

.5 

.4 

.4 

.4 

.4 

.3 

.4

.5 

.5 

.6 

.6 

.6 

.5

17.2

Suspended sediment

Mean 

concentration 

(ppm)

89 

75 

83

--

Tons 

per 

day

0.1 

.1 

.1

3.1

September

Mean

charge 

(secondfeet)

0.3 

.4 

.4 

.4 

.3

.3 

.4 

.4 

.5 

.5

.5 

.6 

.8 

1.0 

1.0

1.0 

1.0 

3.5 

2.6 

1.4 

1.0 

.8 

.7 

.7 

.6

.6 

.6 

.6 

.6 

.8

24.3

Suspended sediment

Mean 

con~entra*'on 

(ppm)

60

89

94

58

Tons 

per 

day

(t)

0.2

.5

.1

5.4

Total discharge for year (second-foot-days) .................................. 17, 960. 6 

Total load for year (tons) .................................. : .. -... . - 29, 880

t Less than 0.1 ton.
HEART RIVER BASIN Continued 

HEART RIVER NEAR SOUTH HEART, N. DAK. Contin

Particle-size analyses of suspended sediment, March to Ma

'Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

May 11 .................

Time

5:40 p. m. 

12:15 p.m. 

11:30 a. m. 

11:30 a. m. 

1:00 p.m. 

10:10 a.m. 

2:40 p.m.

Discharge 

(secondfeet)

306 

3,330 

1,240 

1,240 

332 

33 

257

Suspended sedim

Concentration 

of sample 

(ppm)

422 

782 

1,030 

1,030 

865 

240 

1,120

Concentration 

of suspension 

analyzed 

(ppm)

978 

1,520 

1,200 

1,340 

2,310 

593 

2,190

Percent finer 

0.002

88 

64 

58 

55 

60 

85

0.004

93 

80 

71 

70 

69 

89 

79

0.008

95 

90 

81 

81

-

0.016

94 

85 

85

95

0.
HEART RIVER BASIN Continued 

HEART RIVER NEAR RICHARDTON, N. DAK.

LOCATION. At gaging station at bridge on State Highway 8, half a mile downstream from Blacktail Cr

DRAINAGE AREA. 1,310 square miles.

RECORDS AVAILABLE. Sediment records: March 1946 to September 1950. 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 3,910 ppm Apr. 18; minimum daily, no f

Sediment loads: Maximum daily, 152,000 tons Apr. 17; minimum daily, 0 tons Jan. 6 to Mar. 3. 

EXTREMES, 1946-50. Sediment concentrations: Maximum daily, 5,910 ppm June 4, 1948; minimum daily, 

Sediment loads: Maximum daily, 152,000 tons Apr. 17,1950; minimum daily, 0 tons Jan. 6 to Mar. 3

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply 

Chemical analyses, in parts per million, August to September 

Date of collection

Aug. 11, 1950 ....

Sent. 4 ..........

charge 

(second6.6

4.4

perature

PH

8.0

7 8

Specific

ance 

(micromhos at

25° C)

1,370

1.470

Silica 

(SiOa)

12

Iron 

(Fe)

0.04

Calcium 

(Ca)

67

nesium 

(Mg)

40

Sodium 

(Na)

212

tassium 

(K)

9.4

224

Bicarbonate 

(HCO.)

384

387

Sulfate 

(SO,)

445

460

Chloride 

(Cl)
HEART RIVER BASIN 209

HEART RIVER BASIN Continued

HEART RIVER NEAR RICHARDTON, N. DAK. Continued 

Suspended sediment, water year October 1949 to September 1950

Day

1ft

A«

25

nrj

90

30 

31 ......

Total21 ...... 

22 

23 

24 

25 

26 ------ 

27 

28 ------ 

29 ------ 

30 

31 ......

TotalOctober

Mean

charge 

(secondfeet)

4.7 

6.2 

7.1 

7.9 

9.7

9.7 

9.3 

10 

9.7 

10

11 

9.7 

9.7 

9 3 

9.3

10 

9.7 

10 

11

11

12 

12 

12 

13 

13

13

11 

11 

13 

11 

10

316.0

1

1 

1 

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 

0 

0

5

Suspended sediment

Mean 

concentration 

(ppm)

January

Tons 

per 

day

el

30

(t)

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

(t)

November

Mean

charge 

(second - 

feet)

10 

9.3 

9.3 

8.8 

8.8

9.7 

8.8 

9.3 

8.4 

8.4 

8.8 

7.9 

8.8 

8.8 

7.5 

3.8 

7.1 

7.1 

8.8 

7.5 

5.7 

8.8 

7.9 

7.1 

7.1

9.7 

9.7 

10 

8.8 

7.5

249.2

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

(t)

20

February

0 0

December

Mean

charge 

(secondfeet)

9.7 

8.4 

8.8 

3.1 

7.9

7.5 

6.2 

5.7 

5.3 

5

3 

2 

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1 

1

91.6

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

(t)

5

March

0 

0 

0 

20 

500

700 

400 

300 

350 

400

200 

150 

120 

100 

90 

80 

100 

90 

80 

70 

60 

500 

1,000 

1,400 

1,600

1,200 

600 

250 

250 

250 

280

11,140

320

416 

142 

47 

62 

126 

130

72 

50

50 

100 

270 

220

149

177

108

0 

0 

0 

eS 

432

786 

153 

38 

59 

136

70 

e40 

e30 

e25 

e20

16 

14 

e!2 

ell 

e9 

e8 

67 

270 

1,020 

950

483 

287 

elOO 

e80 

73 

e80

5,270

e Estimated.

t Less than 1 ton.
210 MISSOURI RIVER BASIN

HEART RIVER BASIN Continued

HEART RIVER NEAR RICHARDTON, N. DAK.--Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

g

25

27

Oft

29

Total2

g

Q

22

oo

24 

25 ------

26 

27 ------

28 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

277 

247 

229 

291 

234

261 

368 

330 

182 

430

811 

811 

1,450 

3,350 

7,040

16, 300 

17,000 

7,540 

2,560 

1,220

705 

570 

442 

424 

433

380 

275 

233 

210 

189

64,792

Suspended sediment

Mean 

concentration 

(ppm)

120 

280 

1,540 

2,220

2,650 

3,340 

3,910 

2,840 

1,440

1,180 

752 

400 

310 

240 

190 

140 

110 

94 

85

Tons 

per 

day

elOO

e250 

263 

1,100 

s 14, 700 

843,900 

s 120, 000 

s 152, 000 

877,500 

s 20, 700 

s4,870

2,250 

1,160 

477 

355 

281

195 

104 

69 

53 

43

441,300

July

24 

23 

21 

19 

19 

19 

20 

17 

16 

15

17 

16 

16 

15 

13 

13 

13 

15 

17 

18

15 

13 

12 

11 

9.7 

10 

9.4 

8.5 

8.2 

7.6 

7.0

457.4

55 

81

70

--

3 

3

2

82

Total discharge for year (second-foot-day! 

Total load for year (tons) ..............

May

Mean

charge 

(secondfeet)

181 

195 

182 

184 

180 

178 

188

263 

325

508 

808 

568 

347 

252

198 

167 

145 

132 

121

119 

100 

88 

78 

70 

62 

56 

46 

44 

45 

42

6,087

Suspended sediment

Mean 

concentration 

(ppm)

101

169 

320

570 

995 

1,070 

542 

190

95

52

75

Tons 

per 

day

51

120 

281

782 

2,170 

1,640 

508 

129

39

13 

10

6,360

August

6.8 

6.2 

6.4 

6.8 

6.8 

5.8 

5.8 

5.4 

5.0 

5.0

6.8 

10 

13 

12 

12

11 

10 

8.8 

8.2 

7.6

7.0 

6.8 

6.8 

7.6 

8.5 

9.1 

8.5 

9.1 

9.1 

8.5 

7.3

247.7

63

76

56

--

1 

2

1

41

June

Mean

charge 

(secondfeet)

38 

35 

32 

29 

32

31 

28 

42

51 

41

33 

31 

35 

26 

24

22 

20 

22 

26 

30

30 

23 

20 

22 

37 

58 

45 

42 

36 

28

969

Suspended sediment

Me-«i 

cone en - 

trat'on

(ppm)

59 

50 

55

Tons 

per 

day

6 

4 

5

150

Septe liber

6.8 

6.6 

5.4 

4.4 

3.8 

3.4 

3.4 

3.6 

4.8 

6.6

6.6 

6.8 

7.9 

8.5 

10

11

12 

13 

11 

10

10 

9.4 

9.1 

8.5 

7.9 

7.3 

7.9 

7.3 

7.0 

7.9

227.9

38

l) ....................................................

(t)

22

84,582.8 

453,300

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.
HEART RIVER BASIN Continued 

HEART RIVER NEAR RICHARDTON, N. DAK. Continue

Particle-size analyses of suspended sediment, March to April 

(Methods of analysis: B, bottom withdrawal tube; D, decantatlon; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection Time

2:00 p.m. 

2:20 p.m. 

4:00 p.m. 

4:00 p.m. 

6:00 p.m. 

12:00 m. 

12:15p.m.

Discharge 

(secondfeet)

465 

6,750 

5,990 

5,990 

2,020 

417 

230

Suspended sedi

Concentration 

of sample 

(ppm)

348 

2,920 

4,120 

4,120 

2,270 

333 

108

Concentration 

of suspension 

analyzed 

(ppm)

712 

5,050 

1,910 

2,850 

4,810 

804 

189

Percent finer 

0.002

60

35 

14

45 

71

0.004

70 

33 

43 

27 

47 

61 

80

0.008

81

52 

40

65 

90

0.016

97 

49 

61 

53 

65 

72

0
HEART RIVER BASIN Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN HEART RIVER BASIN IN 

Chemical analyses, in parts per million, water year October 1949 to Se

Date of collection

Discharge 

(secondfeet)

pH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(SiO.)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Carbonate 

(CO,)

Bicarbonate 

(HCO,)

Sulfate 

(SO,)

Chloride 

(Cl)

HEART RIVER BELOW HEART BUTTE DAM NEAR GLEN ULLI

Aug. 11, 1950 ..... 

Sept. 5 ............

Sept. 8, 1950 ......

29 

29

a 47

7.6 

7.3

8.1

495 

577

1,180

5.2

12

0.04

.02

37

45

14

32

55

HEART

9f

208

5.6 

53

RIVER

o

8.2

0 

0

NEAR

0

169 

187

MANDA

409

125 

135

*

305

2.1 

2.0

20

a Mean daily discharge.
CANNONBALL RIVER BASIN 

CANNONBALL RIVER NEAR NEW LEIPZIG, N. DAK.

LOCATION.--At gaging station at bridge on State Highway 49, 2 i miles south of New Leipzig, Grant C

DRAINAGE AREA. 1,180 square miles.

RECORDS AVAILABLE."--Sediment records: April 1946 to September 1950 (discontinued).

EXTREMES,1949-50. Sediment concentrations: Maximum daily, not determined; minimum daily, no flow J

Sediment loads: Maximum daily, 420,000 tons, estimated, Apr. 17; minimum daily, 0 tons Jan. 21 to 

EXTREMES,1946-50. Sediment concentrations (1946-49): Maximum daily, 4,650 ppm Apr. 12, 1947; minim

Sediment loads: Maximum daily, 420,000 tons, estimated Apr. 17, 1950; minimum daily, 0 tons sever

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply P

Chemical analyses, in parts per million, April to September 19

Date of collection

Apr. 20, 1950....... 

May 18 .............

July 24 .............

Aug. 15.............

Sept. 5 .............

Sept. 14. ............

Discharge 

(secondfeet)

4,050 

186 

39 

21

16 

7.5 

13

Temperature 

<°F)

pH

7.5 

7.6 

7.9 

8.4

7.8 

7.8 

7.9

Specific 

conductance 

(micromhos at 

25° C)

281 

953 

1,130 

1,210

1,240 

1,320 

1,230

Silica 

(SiOa)

8.4 

12 

7.8 

11

12 

11 

10

Iron 

(Fe)

0.04 

.04 

.02 

.03

.04 

.04 

.02

Calcium 

(Ca)

30 

59 

65 

68

56 

48 

58

Magnesium 

(Mg)

6.7 

25 

34 

36

35 

40 

20

Sodium

(Na)

1 

1 

1

1 

196 

2

Potassium 

(K)

19 

23 

39 

0

7.5 

12

Bicarbonate 

(HCOS)

128 

260 

378 

a 400

388 

392 

385

Sulfate 

(SO.)

33 

283 

330 

328

353 

363 

343

Chloride 

(Cl)

0.5 

3.0 

10 

8.0

7.5 

7.6 

9.0

a Includes equivalent of 10 parts per million of carbonate (CO,).
214 MISSOURI RIVER BASIN

CANNONBALL RIVER BASIN Continued 

CAWONBALL RIVER NEAR NEW LEIPZIG, N. DAK. Continued

Suspended sediment, water year October 1949 to September 1950

Day

1 9

1 R

18

21

99

23

28

9Q

31 

TotalQ

12

on

22 

23 

24 ------ 

25 

26 ------ 

27 

28 ------ 

29 -----. 

30 

31 .

TotalOctober

Mean

charge 

(secondfeet)

3.8 

4.8 

5.0 

4.8 

4.5

5.0 

5.9 

9.8 

9.8 

8.9

9.3 

10 

12 

8.9 

8.0

8.9 

8.4 

8.4 

9.3 

8.9 

8.9 

10 

10 

10 

10

9.8 

10 

10 

9.8 

9.3 

10

262, 2

Suspended sediment

Mean 

concentration 

(ppm)

41 

39

--

January

2 

2 

2

1 

1

1

1 

1 

1 

1 

1 

1 

1 

1 

1

1 

1 

1 

1 

1

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

23

Tons 

per 

day

(t) 

1

28

' (t)

0 

0 

0 

0

b

0 

0 

0 

0 

0 

0

2

November

Mean

charge 

(secondfeet)

11 

7.6 

8.9 

11 

8.9

7.6 

7.3 

6.9 

6.9 

7.3

7.6 

7.3 

6.9 

7.3 

7.6

7.6 

6.5 

7.6 

8.9 

8.4

7.6 

6.5 

7.6 

8.0 

8.0

8.9 

7.6 

8.0 

16 

9.8

247.1

Suspended sediment

Mean 

concentration 

(ppm)

26

-

Tons 

per 

day

(t)

17

February

0 -- 0

December

Mean

charge 

(secondfeet)

8.0 

6.9 

6.5 

6 

5.3

4.8 

4.0 

4.0 

5.6 

6.2

6.5 

5 

4 

4 

3

3 

3 

3 

3 

3

3 

2 

2 

2 

2

2 

2 

2 

2 

2 

2

117.8

Susoended sediment

Mian 

cor centra tion 

(ppm)

29

Tons 

per 

day

(t) 

(t)

9

Mxrch

0 

0 

0 

0 

2

5 

5 

4 

3 

2

100 

150 

150 

100 

80

70 

60 

60 

60 

120

160 

100 

80 

60 

50 

45 

220 

250 

210 

180 

150

2,476

62

70 

53 

37 

43 

41

40 

37 

32 

29 

30

37 

38 

30 

27 

30 

13 

40 

25 

26 

26 

28

--

0 

0 

0 

0 

(t)

(t) 

el 

(t) 

(t) 

(t) 

19 

21 

15 

12 

9 

8 

6 

5 

5 

10

16 

10 

6 

4 

4 

2 

24 

17 

15 

13 

11

235

e Estimated.

t Less than 1 ton.
CANNONBALL RIVER BASIN

CANNONBALL RIVER BASIN Continued

CANNONBALL RIVER NEAR NEW LEIPZIG, N. DAK.--Continued

Suspended sediment, water year October 1949 to September 1950 Continued

Day

g

12

id

21

23

24

25

27

31 ......

Total2

Q

1ft

22 ------ 

23 ------ 

24 ...... 

25 ------

26 ----- -

27 

28------ 

29 

30 ...... 

31 

TotalApril

Mean

charge 

(secondfeet)

120 

100 

90 

90 

90 

150 

200 

170 

130 

100

80 

80 

100 

120 

800

5,800 

37, 100 

32, 200 

12,900 

5,490 

2,710 

2,160 

1,430 

1,000 

646

461 

349 

285 

258 

229

105,438

Suspended sediment

Mean 

concentration 

(ppm)

26 

32 

33 

24 

24

28 

24 

22 

18

17

20 

17 

17 

27 

130

1,700

3,100 

2,550 

1,890 

1,250 

830 

700 

500

330 

250 

180 

140 

110

--

Tons 

per 

day

8 

9 

8 

6 

6

11 

15 

10 

6 

5

4 

4 

5 

9 

281

26,600 

6420,000 

e350,000 

108, 000 

s 38, 600

13,800 

7,290 

3,200 

1,890 

872

411 

236 

139 

98 

68

971,600

July

33 

31 

30 

28

27

26 

25 

24 

24 

23 

29 

27 

25 

24 

24

22 

21

27 

28 

25

24 

24 

23 

21 

20

19 

18 

17 

17 

15 

15

736

95

99

--

7 

5

195

May

Mean

charge 

(secondfeet)

215 

237 

244 

230 

217 

227 

296 

324 

401 

567

595 

634 

595 

452 

318

249 

210 

186 

162 

147

133 

118 

106 

94 

87

84 

79 

74 

71 

65 

62

7,479

Suspended sediment

Mean 

concentration 

(ppm)

125 

120 

100 

80 

90

98 

137 

166 

349 

640

435 

302 

305 

260 

197

136 

110 

96

75 

52

40

Tons 

per 

day

73 

77 

66 

50 

53

60 

109 

145 

s415 

980

699 

517 

490 

317 

169

91 

62 

48 

33 

21

10

4,580

August

15 

14 

13 

13 

13

13 

13 

13 

13 

14 

17 

17 

17 

16 

17

17 

15 

14 

13 

12 

11 

11 

11 

10 

10

11 

11 

11 

12 

11 

11

409

90 

84 

82

"

3

3 

2

82

June

Mean

charge 

(secondfeet)

60 

58 

53 

51 

50

50 

52 

261 

76 

53

50 

46 

45 

44 

43

41 

40 

41 

41 

38

35 

35 

33 

36 

40

39 

35 

35 

34 

33

1,548

Suspended sediment

Mean 

concentration 

(ppm)

58

2,710 

1,100 

160

119 

95

74

Tens 

prr 

dsy

8

s2,090 

226 

23

15 

10

7

2.590

September

10 

10 

9.1 

8.5 

8.0

6.9 

6.4 

6.4 

8.0 

18 

15 

12 

14 

13 

13

13 

15 

34 

24 

20 

18 

16 

15 

13 

12

11 

11 

11 

11 

11

393.3

62

50

86 

48

2

2

5 

1

75

Total discharge for year (second-foot days) ................................................... 11£,129.4

Total load for year (tons) .................................................................... 97?,400

e Estimated.

s Computed by subdividing day.

326665 O - 55 - 15
CANNONBALL RIVER BASIN Continued 

CANNONBALL RIVER NEAR NEW LEIPZIG, N. DAK. Conti

Particle-size analyses of suspended sediment, April 1950

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection

Apr. 19, 1950 ...........

Apr. 19 .................

Apr. 20 .................

Apr. 20 .................

Apr. 22 .................

Apr. 26 .................

Apr. 27 .................

Time

7:15 p.m. 

7:15 p.m. 

11:30 a.m. 

6:00 p. m.

9:40 a. m. 

11:00 a. m. 

11:15 a.m. 

5:35 p.m.

Discharge 

(secondfeet)

11,200 

11,200 

5,100 

4,050

2,520 

2,120 

462 

318

Suspended sedim

Concentration 

of sample 

(ppm)

2,980 

2,980 

2,560 

2,380

1,820 

1,210 

290 

258

Concentration 

of suspension 

analyzed 

(ppm)

1,850 

1,820 

4,810 

4,700

3,530 

2,480 

518 

700

Percent finer th

0.002

32 

21

73 

60

0.004

42 

32

46 

46

52 

56 

83 

76

0.008

50 

44

93

86

0.016

58 

53 

66 

66

74 

77

92

0.0
CANNONBALL RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN CANNONBALL RIVER BASIN 

Chemical analyses, in parts per million, water year October 1949 to S

Date of collection

Discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25* C )

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium

(Na)

Potassium 

(K)

Carbonate

Bicarbonate

(COS) <H«V

Sulfate 

(S04)

Chlo

ride 

(Cl)

CANNONBALL RIVER AT BREIEN

Aug. 31 ............ 66

8.4

7.8

8.0

903

1,340

17

24

14

0.02

.14

27

92

60

54

2.6

54

33

188

?01 | 8.3

4

0

0

0

296

908

298

352

215

715

300

405

7.

24

8.

10

CEDAR CREEK NEAR PRETTY ROCK

Aug 31 ...

Sept. 13 ............

22

9.4

8.7

7.5

7.5

7.6

7.8

1,760

1,090

1,330

14

12

11

9.8

0.08

.08

.04

.34

.02

82

54

59

75

7 7

4fl

51

31

30

42

262

147

134 | 7.7

174

0

0

0

0

0

102

410

224

289

335

26

493

603

368

330

430

0.

6.

9.

11

10

5.

8.
GRAND RIVER BASIN

GRAND RIVER AT SHADEHILL, S. DAK.

LOCATION. At gaging station at bridge on State Highway 73 at Shadehill, Perkins County, 1 mile downs

confluence of North Fork and South Fork, and 12 miles south of Lemmon, N. Dak. 

DRAINAGE AREA. 3,120 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1950.

Water temperatures: October 1945 to September 1949.

Sediment records: March 1946 to June 1950 (discontinued). 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 5,140 ppm Apr. 16; minimum daily, no flo

Sediment loads: Maximum daily, 622,000 tons Apr. 16; minimum daily, 0 tons on many days. 

EXTREMES, 1945-50. Dissolved solids (1945-49): Maximum, 3,910 ppm Jan. 11-20, 1946; minimum, 166 pp

Hardness (1945-49): Maximum, 590 ppm Feb. 1-5, 1946; minimum, 39 ppm Sept. 11-20, 1946.

Specific conductance (1945-49): Maximum daily, 6,520 micromhos Jan. 12, 1946; minimum daily, 201 m

Water temperatures (1945-49): Maximum, 80°F July 11, 1946; minimum, freezing point on many days du

Sediment concentrations (1946-50): Maximum daily, 18,600 ppm May 5, 1946; minimum daily, no flow o

Sediment loads (1946-50): Maximum daily, 622,000 tons Apr. 16, 1950; minimum daily, 0 tons on many 

REMARKS.--Records of discharge for water year October 1949 to September 1950 given in Water-Supply Pa

after June 30.

Chemical analyses, In parts per million, water year October 1949 to Sept

Date of collection

Oct. 12, 1949 .....

Dec. 21 ...........

Mar. 8, 1950 ......

Apr. 26 ...........

May 11 ............

4"«t. I* ...........

Sept. 13 ...........

Discharge 

(secondfeet)

132 

a 13 

.7 

1,200

2,200 

2,940 

39,800 

2,440 

1,070

1,560 

69 

1.0 

1.4 

.6

PH

8.3 

8.3 

8.4 

7.5

7.2 

7.2 

7.3 

7.9 

7.3

7.5 

8.0

S.I 

8.4

Specific 

conductance 

(micromhos at 

25° C )

2,600 

2,210 

2,980 

414

304 

216 

308 

431 

774

1,040 

2,000 

1,340 

1,0«0 

1,350

Silica 

(S1Q,)

19 

13 

21 

17

8.6 

7.4 

8.9 

8.2 

9.3

17 

8.8

n

12

Iron 

(Fe)

0.04 

.04 

.04 

.08

.04 

.04 

.02 

.02 

.02

.02 

.02

.04 

.02

Calcium 

(Ca)

21 

26 

22 

28

21 

14 

29 

27 

37

34 

39

V 

29

Magnesium 

(Mg)

11 

15 

22 

6.6

5.2 

3.7 

5.9 

8.4 

16

17 

24

0.4 

12

£, f -

<Na) -f

622 

504 

698 

58

38 

29 

30 

54 

110

177 

440 

271 6.2 

311 

282

Carbonate 

(CO,)

22 

31 

69 

0

0 

0 

0 

0 

0

0 

0

0 

10

Bicarbonate 

(HCO.)

808 

616 

776 

150

132 

92 

156 

132 

190

254

473

<*66

476

Sulfate 

(SO,)

690 

614 

848 

90

44 

32 

30 

102 

226

316 

715

 PA 

273

Chloride 

(Cl)

20 

16 

18 

1.5

.5 

2.0 

.5 

.5 

2.5

1.5 

13

IS 

27

a Mean dally discharge.
GRAND RIVER BASIN

GRAND RIVER BASIN Continued

GRAND RIVER AT SHADEHILL, S. DAK.--Continued

Suspended sediment, October 1949 to June 1950

219

Day

24

9Q

Oft

Totalq

to

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

October

Mean

charge 

(secondfeet)

0.6 

.5 

.3 

.3 

.3

.3 

.5 

1.0 

.6 

.6 

57 

130 

77 

42 

27

22 

18 

16 

14 

16

16 

16 

16 

18 

22

21 

40 

35 

25 

22 

21

676.0

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

a 900

January

0 ~ 0

November

Mean

charge 

(secondfeet)

17 

16 

15 

14 

14

14 

14 

14 

14 

14 

14 

14 

14 

14 

14

13 

11 

12 

12 

12

11 

11 

11 

11 

11

12 

15 

17 

17 

14

406

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

a 200

February

0 ~ 0

December

Mean

charge 

(secondfeet)

14 

14 

16 

14 

12

11 

11 

10- 

10 

9

8 

6 

5 

4 

3

2 

2 

2 

1 

1

1 

1

1 

0 

0

0 

0 

0 

0 

0 

0

158

Suspended sediment

Mean 

concentration 

(ppm)

Tens 

per 

day

0 

0

0 

0 

0 

0 

0 

0

a 40

March

0 

0 

0 

0 

0 

100 

900 

1,600 

600 

300

250 

200 

180 

190 

200 

180 

160 

150 

150 

150 

200 

200 

190 

180 

170 

250 

500 

400 

250 

210 

180

8,040

890 

2,100 

2,250 

1,320 

1,250

390 

490 

460 

790 

520

750 

570 

390 

140 

190 

310 

580 

180 

190 

420 

160 

70

0 

0 

0 

0 

0

5 100 

9 720 

2 140 

1.010 

263 

265 

224 

405 

281

364 

246 

158 

57 

77 

167 

313 

92 

92 

193 

108 

94 

e75 

e55 

e50 

e45

21,830

e Estimated.

a Estimated on basis of previous records for similar periods, water discharge, and periodic samples upstream 

on North and South Forks of the Grand River.
220 MISSOURI RIVER BASIN

GRAND RIVER BASIN Continued

GRAND RIVER AT SHADEHILL, S. DAK.---Continued

Suspended sediment, October 1949 to June 1950 Continued

Day

Q

19

22

AQ

25

27

no

9O

31 

TotalApril

Mean

charge 

(secondfeet)

160 

153 

162 

704 

1,840

2,360 

4,160 

6,370 

3,150 

2,340

2,510 

2,000 

1,630 

1,970 

9,830

42,500 

37,300 

21,600 

8,230 

3,610

2,450 

2,540 

2,130 

1,720 

1,320

1,060 

843 

706 

609 

517

166,474

Suspended sediment

Mean 

concentration 

(ppm)

1,210 

2,410

3,100 

1,800 

1,700 

1,300 

850 

1,100 

1,100 

1,000 

1,460 

4,320

5,140 

5,000 

4,830 

4,990 

3,450

2,300 

2,140 

1,680 

1,350 

1,060

630 

420 

270 

180 

160

Tons 

per 

day

e35 

e35 

e45 

2,300 

314,400

19, 800 

20, 200 

29,200 

11, 100 

5,370

7,450 

5,940 

4,400 

8,660 

115,000

S622, 000 

504,000 

282,000 

111,000 

s 34, 400

15, 200 

14, 700 

9,660 

6,270 

3,780

1,800 

956 

515 

296 

223

1,851,000

May

Mean 

discharge 

(secondfeet)

491 

524 

605 

882 

762

653 

883 

869 

985 

961

1,470 

1,460 

1,000 

758 

617

512 

440 

572 

410 

368

326 

256 

235 

200 

178

165 

160 

146 

135 

123 

126

17,272

Suspended sediment

Mean 

concentration 

(ppm)

150 

160 

280 

1,080 

1,980

1,180 

1,280 

1,340 

1,300 

1,380

3,400 

3,310 

1,570 

700 

470

320 

260 

560 

740 

310

160 

130 

94 

110 

81

79 

61 

54 

52 

62 

130

Tons 

per 

day

199 

226 

457 

s2,630 

4,070

2,080 

3,050 

3,140 

3,460 

3,580

13, 500 

13,000 

4,240 

1,430 

783 

442 

309 

865 

819 

308

141 

90 

60 

59 

39

35 

26

21 

19 

21 

44

59,140

Jme

Mean

discharge 

(secondfeet)

123 

108 

105 

99 

94

94 

106 

121 

99 

108

106 

90 

82 

80 

70

75 

110 

101 

76 

82

79 

73 

71 

66 

75

65 

65 

70 

79 

40

2,612

Suspended sediment

I'^sn 

concentration 

(ppm)

142 

124 

113 

74 

45

70

340 

180 

135

123 

105 

87 

78 

98

86 

172 

105 

90 

78

67 

76 

79 

86

90 

87 

74 

111 

100

Tons 

per 

day

47 

36 

32 

20 

11

18 

e75 

111 

48 

39 

35 

26 

19 

17 

18

17 

51 

29 

18

17

14 

15 

15 

15 

e40

16 

15 

14 

24 

11

863

Total discharge for period Oct. 1 to June 30 (second-foot-days) 

Total load for period Oct. 1 to June 30 (tons) .................

195,638.0

1,934,000

e Estimated.

s Computed by subdividing day.
GRAND RIVER BASIN Continued 

GRAND RIVER AT SHADEHILL, S. DAK. Continue

Particle-size analyses ot suspended sediment, March to Ma

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanical

Date ot collection

Apr. 4 ................

May 11 ...............

Time

6:30 p. m. 

6:30 p. m. 

1:00 p.m. 

1:45 p. m. 

3:00 p. m.

12:45 p. m. 

4:10 p.m. 

5:50 p.m. 

1:00 p.m. 

12:50 p.m.

3:05 p. m. 

10:30 a. m. 

10:10 a.m. 

7:15 p.m. 

7:15 p.m.

Discharge 

(secondfeet)

1,260 

1,260 

1,240 

162 

665

2,960 

1,800 

12,700 

52,800 

22, 000

6,800 

2,440 

1,070 

1,580 

1,580

Suspended sed

Concentration 

of sample 

(ppm)

2,050 

2,050 

 3,100 

644 

2,130

1,040 

1,840 

3,860 

5,650 

4,480

5,220 

2,060 

650 

3,720 

3,720

Concentration 

of suspension 

analyzed 

(ppm)

3,020 

2,770 

3,080 

1,560 

2,930

1,680 

2,500 

4,960 

10,600 

3,910

6,800 

3,940 

1,470 

1,820 

1,970

Percent fine

0.002

3 

51

44

41 

53 

1

0.004

4 

56 

17 

47 

19

51 

40 

38 

33 

46

35 

37 

46 

67 

1

0.008

9 

59

51

58 

74 

3

0.016

59 

63 

22 

58 

26

56 

52 

54 

53 

67

51 

50 

62 

84
GRAND RIVER BASIN--Continued 

SOUTH FORK GRAND RIVER NEAR CASH, S. DAK.

LOCATION. fit gaging station at county highway bridge, 1 mile upstream from Little Nasty Creek, 4'mi

downstream from Big Nasty Creek. 

DRAINAGE AREA. 1,350 square miles.

RECORDS AVAILABLE. Chemical analyses: March to September 1950. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply P

Chemical analyses, in parts per million, March to September 

Date of collection

Mar. 8, 1950. .......

Apr. 13.............

Apr. 15. ............

May 10 .............

July 18 .............

Sept. 12 ............

Discharge 

(secondfeet)

117 

2,130 

1,510 

578 

14,200

866 

67 

22 

11 

39

as

PH

7.7 

7.1 

6.9 

7.1 

7.8

8.0 

8.4 

8.4

7.8 

8.7

Specific 

conductance 

(micromhos at 

25° C )

553 

257 

182 

259 

265

1,100 

2,210 

2,370 

2,530 

1,240 

2,600

Silica 

(SiOi)

6.0 

10 

9.6 

7.6 

9.6

17 

11 

10

12 

8.5

Iron 

(Fe)

0.06 

.02 

.30 

.04 

.06

.02 

.02 

.04'

.16 

.02

Calcium 

(Ca)

21 

16 

14 

14 

24

30 

19 

19

13 

13

Magnesium 

(Mg)

6.8 

5.2 

2.7 

3.0 

1.2

17 

16 

17

4.3 

12

Sodium 

(Na)

8 

3 

2 

3 

3

19 

52 

54 

576 

27 

62

Potassium 

(K)

3 

1 

2

3 

2

) 

3 

J 

12 

3 

5

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

28 

26

0 

53

Bicarbonate 

(HCQ,)

104 

112 

72 

100 

126

254 

639 

694

408 

744

Sulfate 

(SO.)

169 

33 

28 

42 

29

350 

650 

645

298 

695

Chloride 

(Cl)

1.2

.5 

2.0 

2.0 

.5

2.0 

10 

9.0

5.0 

12
GRAND RIVER BASIN 223

GRAND RIVER BASIN Continued

SOUTH FORK GRAND RIVER NEAR CASH, S.DAK. Continued 

Periodic determinations of suspended-sediment discharge, water year October 1949 to September 1950

Date

Oct. 6, 1949. ............

Oct. 26 .................

Mar. 7, 1950. ...........

Mar. 8 .................

Mar. 9 .................

Mar. 13.................

Apr. 4 .................

Apr. 9 .................

Apr. 13 .................

Apr. 15 .................

Apr. 18 .................

Apr. 19 .................

Apr. 21 .................

Apr. 26 .................

May 10 .................

May 31 .................

June 27 .................

July 18 .................

Aug. 16 ................

Sept. 12 ................

Instantaneous 

water discharge 

(second-feet)

18 

28 

909 

117 

13

61 

753 

2,140 

1,510 

578

14,200 

2,700 

959 

420 

366

900 

43 

67 

22 

39 

9.6

Suspended sediment

Mean 

concentration 

(ppm)

18,600 

3,140 

568 

349 

206

140 

214 

1,570 

580 

394

3,990 

2,200 

1,110 

431

727

3,970 

178 

73 

82 

632 

54

Instantaneous 

discharge 

(tons per day)

904 

237 

1,390 

110 

7.23

31 

435 

9,070 

2,360 

615

153, 000 

16, 000 

2,870 

489 

718

9,650 

21 

13 

4.87 

67 

1.43
GRAND RIVER BASIN Continued 

SOUTH FORK GRAND RIVER NEAR CASH, S. DAK . Cont inue

Particle-size analyses of suspended sediment, October 1949 to Augu

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S, 

W, in distilled water; C, chemically disperzed; M, mechanically d

Date of collection

Oct. 6, 1949 ...........

Oct. 6.................

Oct. 26................

Oct. 26 ................

Mar. 8, 1950 ..........

Apr. 15. ...............

Apr. 18. ...............

Apr. 19. ...............

Apr. 26. ...............

May 10 ................

Aug. 16................

Time

3:50 p.m. 

3:50 p.m. 

11:00 a.m. 

11:00 a.m.

5:40 p.m. 

6:05 p. m. 

2:40 p. m. 

4:45 p. m.

7:00 p.m. 

2:15 p.m. 

1:45 p. m. 

10:50 a. m.

Discharge 

(secondfeet)

18 

18 

28 

28

117 

2,140 

14,200 

2,700

959 

366 

900 

39

Suspended sedim

Concentration 

of sample 

(ppm)

18,600 

18,600 

3,140 

3,140

349 

1,570 

3,990 

2,200

1,110 

727 

3,970 

632

Concentration 

of suspension 

analyzed 

(ppm)

3,800 

3,970 

1,970 

2,100

901 

2,670 

5,930 

3,760

2,380 

1,860 

8,670 

1,850

Percent finer th

0.002

2 

87 

2 

84

69

0.004

5 

97 

4 

94

78 

42 

53 

61

78 

92 

68 

94

0.008

21

99 

7 

98

89

0.016

100 

100 

100 

100

98 

55 

77 

81

90 

97 

94 

95

0.03
GRAND RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF S1REAMS IN GRAND RIVER BASIN IN 

Chemical analyses, in parts per million, water year October 1949 to Se

Date of collection

Discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25" C )

(SiO,) (Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

(CO,) <HCO»)

Sulfate 

(SO.)

Chloride 

(Cl) 

NORTH FORK GRAND RIVER NEAR WHITE BUTTE

Dec. 20, 1949 ......

Sept. 14 ..........

700

16

9 2

3.0

7 n

8.0

3,590

273

2

qen

1,830 9.6

0.02

.02 60

QO

44

34

ooq

424 1 9 0

323 0 352 663

.5

9.0

GRAND RIVER NEAR WAKPALA

Sept. 18 ........... 56

8

0

8.5

1 ? in

1,690 11 .02 68 27 288

12

24

VGA

272 600 13 
226 MISSOURI RIVER BASIN

GRAND RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN GRAND RIVER BASIN IN SOUTH DAKOTA Continued 

Periodic determinations of suspended-sediment discharge, water year October 1949 to September 1950

Date

Instantaneous 

water discharge 

(second-feet)

Suspended sediment

Mean 

concentration 

(ppm)

Instantaneous 

discharge 

(tons per day)

NORTH FORK GRAND RIVER NEAR WHITE BUTTE

Oct. 26, 1949 .........

Nov. 16 ...............

Mar. 14 ..............

Apr. 20 ..............

May 9

Sept. 14 ..............

AQfi

3.0

38

34

1,490

856

45

21

0.4

.2

.2

360

6.9

6,880

3,260

502

311

2.4

2.7

7.6

.2
GRAND RIVER BASIN Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN GRAND RIVER BASIN IN SOUT

Particle-size analyses of suspended sediment, water year October 1949 to 

(Methods of analysis: B, bottom withdrawal tube; D, decollation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection Time

Discharge 

(secondfeet)

Suspended s

Concentration 

of sample 

(ppm)

Concentration 

of suspension 

analyzed 

(ppm)

edim

Percent finer 

0. 002 a 004 0. 008 0.016 0.

NORTH FORK GRAND RIVER NEAR WHITE BUTTE

Apr. 20, 1950 .........

Apr. 22 ..............

Aug. 16 ...............

10:45 a.m.

8:50 a.m.

1,710

1,410

530

21

1,490

856

351

134

2,760

2,010

816

406

_

51

64

47

_

95

66

71

78

100
MOREAU RIVER BASIN 

MOREAU RIVER AT BIXBY, S. DAK.

LOCATION.-^At county highway bridge, 300 feet upstream from gaging station, which is a quarter of a m

DRAINAGE AREA. 1,570 square miles.

RECORDS AVAILABLE. Chemical analyses: March 1949 to September 1950.

Water temperatures: April 1949 to September 1950.

Sediment records: April 1949 to September 1950. 

EXTREMES, 1949-50. Dissolved solids: Maximum, 3,100 ppm Dec. 1-21; minimum, 180 ppm Apr. 3.

Hardness: Maximum, 398 ppm July 1-31; minimum, 40 ppm Apr. 3.

Specific conductance: Maximum daily, 5,560 micromhos Dec. 21; minimum,daily, 176 micromhos Apr. 3.

Water temperatures: Maximum, 85°F July 6, 7; minimum, freezing point on many days during December 

Sediment concentrations: Maximum daily, 21,500 ppm Sept. 21; minimum daily, no flow on many days d

Sediment loads: Maximum daily, 169,000 tons Apr. 15; minimum daily, 0 tons on many days during Dec

EXTREMES, March 1949 to September 1950. Dissolved solids: Maximum, 3,100 ppm Dec. 1-21, 1949 (revis

Hardness: Maximum, 425 ppm May 6-9, 1949; minimum, 28 ppm Mar. 8, 27, 1949.

Specific conductance: Maximum daily, 5,560 micromhos Dec. 21 1949 (revised): minimum daily 168 mi

Water temperatures (April 1949 to September 1950): Maximum, 88°F June 11, 1949; minimum, freezing 

Sediment concentrations (April 1949 to September 1950): Maximum daily, 21,500 ppm Sept. 21, 1950; 

Sediment loads (April 1949 to September 1950): Maximum daily, 169,000 tons Apr. 15, 1950; minimum 

REMARKS. Daily samples for chemical analysis composited by discharge. Records of specific conductan

Lincoln, Nebr. Records of discharge for water year October 1949 to September 1950 given in Water

Chemical analyses, In parts per million, water year October 1949 to Sep

Date of collection

Oct. 1-3, 1949 .......

Apr. 11-14 ..........

Aor. 22-26 ..........

Mean 

discharge 

(secondfeet)

3.2 

16 

7.0 

8.0 

4.1 

3.2

123 

100 

126 

2,900 

2,800

6,590 

1,260 

7,600 

1,350 

363 

280

PH

8.9 

8.9 

8.5 

8.3 

8.4 

8.4

7.3 

7.2 

7.2 

7.1 

7.1

7.4 

7.2 

7.4 

7.5 

7.1 

7.3

Specific 

conductance 

(micromhos at 

25° C )

4,140 

2,930 

1,510 

1,760 

2,080 

4,370

701 

1,200 

525 

176 

351

350 

444 

332 

521 

738 

819

Silica 

(SiO.)

7.0 

8.4 

15 

14 

13 

16

16 

13 

13 

13 

16

16 

17 

15 

12 

11 

13

Iron 

(Fe)

0.06 

.06 

.12 

.08 

.08 

.08

.02 

.04 

.04

.04

.08 

.04 

.04 

.02 

.04 

.02

Calcium 

(Ca)

17 

14 

20 

27 

32 

51

16 

39 

20 

12 

23

30 

31 

22 

36 

46 

41

Magnesium 

(Mg)

35 

14 

6.5 

2.2 

8.3 

34

4.1 

12 

5.7 

2.3

7.1

7.7 

8.4 

5.6 

10 

17 

15

Sodium

(Na)

991 

708 

316 

401 

473 

1,030

134 

208 

87 

24 

41

33 

50 

41 

57 

83 

114

Potassium 

(K)

11 

5.6 

6.0 

5.6 

5.2 

13

4.6 

6.8 

4.5 

5.2 

S.fl

3.8 

4.0 

3.3 

4.2 

4.9 

5.1

Carbonate 

(CO,)

87 

79 

20 

24 

20 

45

0 

0 

0 

0 

n

0 

0 

0 

0 

0 

0

Bicarbonate 

(HCO.)

756 

824 

450 

560 

640 

1,390

168 

174 

130 

56

W

146 

107 

98 

99 

110 

144

Sulfate 

(S04)

1,460 

760 

356 

408 

532 

1,200

190 

415 

140 

40 

95

55 

120 

78 

170 

260 

273

Chloride 

(Cl)

30 

16 

7.0 

9.0 

10 

24

4.0 

17 

3.0 

4.0

?.o

2.0 

2.5 

2.5 

2.5 

3.0 

4.0
Sept. 25-30 ..........

Weighted average a . .

470

45

14

4.5

34

5.2

b234

7.5

8.0

7.9

7.8

8.3

1,050

1,470

2,320

2,140

2,160

1,140

1,760

544

12

16

18

9.8

8.8

9.8

17

10

15

.02

.02

.04

.04

.06

.50

.06

0.04

57

66

75

83

24

20

26

31

22

30

43

46

19

3.4

11

9.8

148

143

234

440

390

480

160

377

472

234

384

75

5.2

5.8

7.0

8.9

9.2

7.4

6.4

6.7

6.6

000000

140

11

172

144

264

380

316

455

216

514

306

481

c!24

388

400

545

985

935

845

230

680

318

495

166

5.

5.

7.

11

11

16

10

14

8.

10

3.

a Weighted average for period sampled only.

b Mean discharge for water year was 216 second feet.

c Includes carbonate as bicarbonate.
230 MISSOURI RIVER BASIN

MOREAU RIVES BASIN Continued 

MOREAU RIVER AT BIXBY, S. DAK.--Continued

Temperature (°F) of water, water year October 1949 to September 1950

/Once-daily temperature measurement during March, April, July, and August between 8 a. m. aid 11 a. m.; during 

remainder of year between 2 p. m. and 5 p. mj

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

Average

Oct.

58

63

53

56

58

55

49

45

49

45

52

48

55

56

55

51

45

38

37

35

47

40

41

48

46

49

52

48

41

49

49

Nov.

48

47

51

52

51

51

51

43

46

45

42

45

45

41

41

35

38

40

44

34

34

36

35

34

42

39

44

42

38

34

39

Dec.

37

38

35

33

33

35

32

34

32

32

32

32

32

32

32

32

32

32

~

_

--

--

Jan. Feb. Mar.

34

32

34

33

34

_

35

32

33

..

33

33

33

33

34

34

_

33

33

33

--

Apr.

33

34

33

34

32

37

35

35

38

38

42

45

45

42

43

45

53

43

39

38

47

39

--

--

Hay

39

48

47

41

39

42

49

51

53

57

64

66

57

63

70

63

54

59

60

65

65

55

55

70

65

59

56

June

61

53

68

72

70

83

57

57

60

75

76

71

82

82

65

60

65

76

67

82

76

67

76

69

62

71

74

76

70

--

70

July

69

73

75

79

85

85

79

78

82

73

64

59

67

71

64

62

66

67

68

71

72

76

65

68

72

73

71

76

78

62

72

Aug.

62

65

66

70

71

45

51

66

67

64

66

66

78

68

69

69

63

63

57

63

62

64

63

62

60

67

75

73

65

78

72

69

Sept.

75

68

70

73

71

73

72

69

52

52

57

64

58

52

57

64

69

67

58

60

68

66

69

69

66

55

58

49

47

--

63
MOREAU RIVER BASIN 231

MOREAU RIVER BASIN Continued

MOREAH RIVER AT BIXBY, S. DAK.--Continued

Suspended sediment, water year October 1949 to September 1950

Day

o

Q

19

18

20

21

22

OQ

or

28

9Q

31

Total2

o

a

19

13

1C

18

21

22 

23 ------ 

24 

25 ......

26 

27 ------ 

28 

29 ...... 

30 ------ 

31 ------

TotalOctober

Mean

charge 

(secondfeet)

2.0 

3.1 

4.4 

18 

16

9.0 

6.6 

9.0 

13 

40

20 

13 

10 

10 

7.5

5.8 

4.7 

4.4 

4.4 

5.8

6.2

7.0 

9.0 

7.5 

5.4

10 

11 

8.5 

8.5 

6.2 

5.8

291.8

Suspended sediment

Mean 

concentration 

(ppm)

20 

35 

40 

162 

100

100 

102

500 

3,400

700 

820 

1,000 

650 

370

190

120 

380 

300

195 

155

240 

210 

130

Tons 

per 

day

(t) 

(t) 

(t) 

slO 

4

2 

2 

e3 

18 

259 

38 

29 

27 

18 

7

3

3 

8 

4

5 

5 

e5 

6 

4 

2

481

January

0 -- 0

November

Mean

charge 

(secondfeet)

5.0 

4.4 

4.4 

4.0 

3.7

3.7 

3.7 

3.7 

3.7 

3.7

3.7 

3.7 

3.7 

3.7 

3.7

3.4 

3.7 

3.7 

4.0 

3.7

4.0 

3.7 

4.0 

5.0 

5.0

4.4 

4.0 

4.7 

5.4 

4.4

121.6

Suspended sediment

Mean 

concentration 

(PPm)

90 

116 

86

Tuns 

per 

day

1 

1 

1

30

February

0 0

December

Mean

charge 

(secondfeet)

4.7 

5.0 

4.7 

4.0 

5.0

5.0 

5 

4 

4 

4

3 

3 

3 

2 

2

2 

2

1 

1 

1

1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

66.4

Suspended sediment

Mean 

concentration 

(ppm)

71 

52

Tons 

per 

day

(t)

(t)

0 

0 

0 

0

0 

0 

0 

0 

0 

0

12

March

0 

0 

0 

10 

50

100 

250 

50 

90 

100 

80 

60 

50 

40 

35

30 

40 

30 

40 

45

50 

75 

60 

80 

200

400 

350 

200 

200 

170 

150

3,035

1,300 

1,130 

920 

300 

100

65 

90 

130

320 

270

165 

175 

190 

160 

210 

620

250 

125 

85

0 

0 

0 

elO 

e!50

351 

763 

124 

73 

27 

e20 

e!5 

9 

10 

12

26 

29 

e20 

e20 

20

24 

38 

26 

45 

335

e750 

eSOO 

e!70 

135 

57 

34

3,790

e Estimated.

s Computed by subdividing day

t Less than 1 ton.

326665 O - 55 - 16
232 MISSOURI RIVER BASIN

MOREAU RIVER BASIN Continued

MOREAH RIVER AT BIXBY, S. DAK.--Continued

Suspended sediment, water year October 1949 to September 1950--Continued

Day

13

1 H

9fl

91

99

23

94

oo

29

31 ------

TotalD

19

15 

20

91

99

no

24 

25 ------ 

26 ------ 

27 ------ 

28 ------ 

29 ----- - 

30 

31 ...

TotalApril

Mean

charge 

(secondfeet)

200 

1,300 

2,900 

2,710 

2,730

2,960 

6,590 

5,740 

3,900 

1,500 

902 

729 

871 

2,530 

8,490

9,420 

4,880 

2,260 

1,180 

602

363 

295 

326 

313 

266 

203 

160 

131 

119 

110

64,679

Suspended sediment

Mean 

concentration 

(ppm)

80

2,930 

3,620 

3,870

5,080 

6,020 

3,880

2, '840 

2,640 

5,610 

6,910 

7,470

6,030 

7,550 

6,230 

4,760 

3,330

2,550

1,430 

1,250 

990 

740 

560 

420

Tons 

per 

day

43 

el, 000 

s 21, 800 

26, 500 

28, 500

s 42, 200 

107,000 

60, 100 

e35,000 

e 12, 000

6,910 

5,200 

13,200 

s 46, 000 

s 169, 000

153,000 

86, 300 

38,000 

15,200 

5,410

2,500 

el, 600 

1,260 

1,060 

711

406 

242 

149 

e!25 

ellO

880, 500

July

50 

39 

31 

26 

23

20 

16 

15 

14 

12 

11 

11 

10 

9.5 

10 

10 

11 

11 

11 

10

9.5 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

7.0 

5.4 

4.7 

4.7

435.8

47 

46 

71

3 

1 

1

51

Total discharge for year (second-foot-day 

Total load for year (tons). ..............

May

Mean

charge 

( second - 

feet)

105 

123 

178 

484 

744

650 

852 

687 

542 

947

1,410 

824 

291 

146 

108

89 

77 

69 

59 

53

48 

43 

39 

35 

34 

34 

32 

29 

28 

26 

30

8,816

Suspended sediment

Mean 

concentration 

(ppm)

410 

700 

570 

1,450

4,700

3,600 

5,000

6,300 

7,120 

4,790 

2,800 

1,500

950 

490 

290 

140 

80

50 

40

Tons 

per 

day

116 

232 

274 

s2,060 

e8,000

8,250 

el 1,000 

e 7, 500 

5,270 

s 13, 800 

24,000 

S 16, 000 

S3, 950 

1,100 

437

228 

102 

54 

22 

11

5 

3

102,400

August

4.4 

4.7 

3.4 

3.4 

4.7

38 

138 

50 

17 

9 

5.8 

5.4 

5.0 

5.0 

11

12

8.5 

5.8 

5.8 

5.4

4.7 

4.0 

3.4 

3.4 

3.7

3.4 

3.7 

3.4 

4.0 

16 

8.0

400.0

I 60

1,090 

6,020 

1,620 

220 

100

) -

1-

84 

51

} "

44 

34

~

(t)

S435 

s2,660 

s265 

10 

2

(t) 

2

1

(t)

(t)

2

(t)

3,400

June

Mean

charge 

(secondfeet)

26 

23 

21 

21 

20

18 

18 

22 

20 

20

24 

20 

18 

33

33

21 

22 

19 

17 

16

18 

14 

13 

11 

40 

33 

21 

94 

138 

74

888

Suspended sediment

Mean 

comentra'ion 

(Pfm)

42

1,390 

645

40

1,070 

733 

125 

352 

432 

200

Tons 

per 

day

2

s!43

s72

2

s!48 

s76 

s9 

8124 

sl80 

40

836

Septe-nber

5.8 

5 

4 

3 

3

2 

1.8 

.8 

3.1 

6.6 

5.0 

4.4 

4.7 

6.2 

5.8 

6.2 

6.2 

5.8 

5.4 

35

68 

24 

28 

16 

10 

6.2 

4.7 

4.0 

3.1 

3.1

286.9

54

78 

211

98 

67

46 

4,850

21,500 

6,600 

500 

160 

126

118 

186 } ::

(t)

(t) 

1

1

(t) 

si, 080

s4,050 

428 

38 

7 

3

2 

2

(t)

5,630

........................................................ 997, 100

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.
MOREAU RIVER BASIN Continued 

MOREAU RIVER AT BIXBY, S. DAK. Continued

Particle-size analyses of suspended sediment, March to May 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Apr. 12 .................

May 11 .................

Time

2:20 p.m. 

4:45 p.m. 

3:10 p.m. 

3:10 p.m. 

11:15 a.m.

11:50 a. m. 

10:00 a. m. 

11:30 a.m. 

2:45 p. m. 

2:45 p.m.

I*:10a. m.

10:20 a. m. 

10:20 a. m. 

5:10 p.m.

5:10 p.m. 

10:00 a. m. 

9:50 a. m.

Discharge 

(second* 

feet)

212 

2,370 

2,390 

2,390 

2,460

7,540 

5,720 

702 

2,520 

2,520

8,860 

2,360 

1,200 

605 

336

336 

165 

1,380

Suspended sedim

Concentration 

of sample 

(ppm)

1,160 

6,120 

2,950 

2,950 

3,870

6,060 

3,890 

2,520 

5,630 

5,630

7,400 

6,370 

4,820 

3,350 

2,380

2,380 

564 

6,100

Concentration 

of suspension 

analyzed 

(ppm)

3,370 

10, 600 

1,760 

1,690 

7,200

11,000 

7,740 

7,330 

3,590 

3,460

14,000 

11,000 

8,880 

6,840 

1,380

1,440 

1,390 

13,400

Percent finer t

0.002

28 

21

38

5

72

4

0.004

89 

29 

33 

22

45

44 

55 

64 

44 

8

44 

48 

45 

65 

81

8 

87 

57

0.008

37 

26

50

89 

30

0.016

93 

39 

41 

34 

58

60 

68 

78 

56

62 

62 

57 

79 

94

95 

74

0.0
MOREAU RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN MOREAU RIVER BASIN IN S

Chemical analyses, in parts per million, water year October 1949 to Sep

Date of collection

Discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25" C )

Silica 

(SiQ,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Carbonate 

(CO,)

Bicarbonate 

(HCQ,)

Sulfate 

(SOJ

Chloride 

(Cl)

MOREAU RIVER NEAR EAGLE BUTTE

June 21 ...........

Sept. 19 ..........

12,200 

6,350 

99 

8 

31

7.9 

7.5 

8.0

7.7

539 

409 

2,080 

3,000 

2,710

20 

8.6 

9.9

6.7

0.02 

.04 

.10

.02

55 

38 

64

85

7.2 

4.4 

29

32

5

J

31 

518 

51

3 

0 

7 

13 

1

0 

0 

0

0

154 

136 

305

256

143 

94 

819

1,160

3.0 

8.0 

18

24

MOREAU RIVER AT PROMISE

Sept. 19 ..........

86

10

7.9

7.8 2,850 12 .02 204 53

A.rjO

4 2

0

0

273

244

915

1,400 20
CHEYENNE RIVER BASIN 

CHEYENNE RIVER NEAR HOT SPRINGS, S. DAK.

LOCATION. At gaging station at bridge on State Highway 87, a quarter of a mile downstream from Casc

Fall River County. 

DRAINAGE AREA. 8,710 square miles. 

RECORDS AVAILABLE.--Chemical analyses: April 1947 to September 1950.

Water temperatures: July 1947 to September 1949.

Sediment records: April 1946 to September 1950. 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 55,000 ppm June 19; minimum daily, not 

Sediment loads: Maximum daily, 216,000 tons June 19; minimum daily, less than 1 ton on many days. 

EXTREMES, 1946-50. Dissolved solids (1947-49): Maximum, 2,930 ppm Oct. 25 to Nov. 30, 1947; minimu

Hardness (1947-49): Maximum, 1,760 ppm Nov. 22, 1947; minimum, 344 ppm Feb. 25 to Mar. 10, 1949.

Daily specific conductance (1947-49): Maximum, 3,920 micromhos Apr. 3, 1947; minimum, 713 micromh

Sediment concentrations: Maximum daily, 55,000 ppm June 19, 1950; minimum daily, 1 ppm Sept. 30, 

Sediment loads: Maximum daily, 476,000 tons June 19, 1946; minimum daily, less than 1 ton on many 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply P

Chemical analyses, in parts per million, October 1949 to September 1

Date of collection

Oct. 21, 1949 .......

Jan. 4, 1950........

Feb. 2 .............

Mar. 3.............

Apr. 4 .............

May 3 ..............

July 11 .............

July 18 .............

July 23 .............

Aug. 15 ............

Sept. 19 ............

Discharge 

(secondfeet)

33 

28 

32 

24

29 

26 

50 

156 

124 

86

20 

277 

40 

44 

62 

1,250

24 

34 

16 

15 

23

Temperature 

(°F)

PH

7.3 

7.3 

7.3

7.4

7.6 

7.6 

7.8 

7.4 

7.5 

7.3

7.6 

7.3 

7.6 

7.6 

7.5 

7.3

7.3 

7.7 

7.6 

7.4 

7.5

Specific 

conductance 

(micromhos at 

25" C)

3,030 

2,550 

2,570 

2,510

2,420 

2,480 

2,430 

2,700 

4,030 

2,130

2,620 

2,970 

2,560 

2,160 

1,780 

773

2,530 

2,280 

2,500 

2,570 

2,560

Silica 

(SiO.)

19 

24 

19 

22

21 

38 

41 

26 

12 

15

17 

13 

19 

20 

15 

19

13 

17 

20 

22 

20

Iron 

(Fe)

0.02 

.02 

.02 

.02

.03 

.01 

.06 

.04 

.02 

.04

.04 

.04 

.04 

.02 

.02 

.10

.04 

.02 

.04 

.04 

.04

Calcium 

(Ca)

508 

474 

502 

508

526 

524 

491 

480 

308 

142

510 

246 

462 

363 

296 

70

522 

386 

515 

535 

545

Magnesium 

(Mg)

96 

86 

89 

80

87 

84 

84 

85 

99 

25

97 

77 

93 

63 

53 

19

91 

75 

80 

89 

82

Sodium 

(Na)

Potassium 

(K)

167 

122 

73 

74

35 

23 

76 

89 

498 

367

60 

360 

113 

129 

115 

70

37 

86 

62 

56 

40

Bicarbonate 

(HCO,)

198 

116 

184 

190

204 

178 

194 

200 

184 

148

174 

148 

170 

180 

180 

218

134 

186 

169 

176 

190

Sulfate 

(S04)

1,510 

1,520 

1,470 

1,480

1,460 

1,440 

1,430 

1,350 

1,350 

965

1,510 

1,130 

1,490 

1,160 

935 

197

1,520 

1,170 

1,480 

1,550 

1,500

Chloride 

(Cl)

203 

85 

66 

40

39 

38 

59 

118 

495 

89

59 

293 

61 

61 

57 

11

42 

60 

47 

43 

44
236 MISSOURI RIVER BASIN 

CHEYENNE RIVER BASIN Continued

CHEYENNE RtVER NEAR HOT SPRINGS, S. DAK.--Continued 

Suspended sediment, water year October 1949 to September 1950

Day

1ft

22

90

31 

Total2

12

19

20

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

October

Mean

charge 

(secondfeet)

16 

16 

18 

20 

19

18 

18 

18 

16 

16

18 

18 

18 

18 

17

18 

18 

20 

18 

32 

33 

31 

26 

27 

27

28 

32 

28 

28 

28 

28

688

28 

29 

29 

29 

29

28 

28 

29 

29 

28

28 

28 

27 

27 

27 

27 

26 

26 

27 

27

28 

28 

28 

28 

27

27 

27 

27 

27 

27 

26

856

Suspended sediment

Mean 

concentration 

(ppm)

I 3 

6

1 ' 

) 

670 

670 

495 

320 

146 

102

78 

68 

37

} -

January

1 

) 

15

f 15 

15

15

--

Tons 

per 

day

0.1 

.3

.4

.4

58 

60 

41 

22 

11 

7.4

5.9 

5.9 

2.8

1.0

223

1.0 

1.3 

1.1 

1.1 

1.1

1.1

34.6

November

Mean

charge 

(secondfeet)

28 

28 

29 

30 

31

31 

32 

31 

30 

29

27 

27 

26 

27 

25 

24 

24 

24 

25 

25 

25 

25 

25 

25 

26

26 

26 

24 

24 

24

803

Suspended sediment

Mean 

concentration 

(ppm)

I H

) ' 

1 '

3

1 '

3

Tons 

per 

day

1.1

.7

.4 

.2

.2 

.2

14.0

February

27 

26 

26 

26 

28

29 

29 

29 

28 

28

29 

28 

29 

28 

26 

35 

36 

60 

87 

58

45 

50 

48 

77 

70

73 

64 

64

1,185

18 

18

1"

37 

70 

475 

1,000 

370

90 

260 

170 

736 

880 

635 

435 

510

...

1.3 

1.4

1.0

3.5 

6.8 

s86 

235 

58 

11 

35 

22 

s!72 

166

125 

75 

88

1,100

December

Mean

charge 

(secondfeet)

24 

24 

23 

22 

20

19 

20 

20 

20 

20

19 

20 

20 

20 

20 

21 

20 

21 

20 

21 

23 

23 

23 

22 

23

24 

24 

24 

24 

24 

28

676

Suspended sediment

Mean 

concentration 

(fom)

4

i ' 

1 '

7

5

5 

9

Tons 

per 

day

0,2 

.3

.4 

.4

.3

.3

.7

10.2

March

75 

54 

62 

77 

77

62 

50 

48 

46 

44 

50 

50 

52 

50 

52 

60 

54 

50 

61 

58

70 

128 

93 

86 

82

91 

86 

67 

77 

107 

80

2,099

760 

245 

440 

560 

630

400 

270 

220 

185 

115 

155 

125 

85 

95 

130

200 

255 

110 

160 

120

230 

1,440 

1,150 

740 

575

570 

770 

260 

200 

1,560 

580

~

154 

36 

74 

116 

131

67 

36 

29 

23 

14

21 

17 

12 

13 

18 

32 

37 

15 

26 

19

43 

S501 

289 

172 

127

140 

179 

47 

42 

s456 

125

3,010

s Computed by subdividing day.
CHEYENNE RIVER BASIN 237

CHEYENNE RIVER BASIN Continued

CHEYENNE RIVER NEAR HOT SPRINGS, S. DAK. Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

20 -

21 

24

27

go

29

31 

Total12

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

77 

78 

99 

145 

217

221 

165 

148 

148 

179

200 

366 

680 

402 

242

168 

134 

109 

93 

97

93 

82 

75 

64 

61

57 

64 

72 

77 

86

4,699

40 

40 

40 

136 

196

213 

210 

162 

99 

64

46 

73 

768 

326 

124

103 

78 

77 

73 

46 

34 

31 

860 

767 

392

182 

172 

126 

87 

64 

45

5,696

Suspended sediment

Mean 

concentration 

(ppm)

390 

420 

800 

3,000 

4,890

6,450 

3,050 

2,500 

1,900 

4,080

2,920 

6,350 

19, 900 

13,300 

7,800

4,300 

1,800 

680 

300 

225

375 

305 

115 

115 

135

75 

95 

260 

500 

270

Tons 

per 

day

81 

88 

214 

1,170 

2,860

3,850 

1,360 

999 

759 

1,970

1,580 

S7.420 

s 36, 800 

14,400 

5,100 

1,950 

651 

200 

75 

59

94 

68 

23 

20 

22

12 

16 

51 

104 

63

82,060

July

} »

29, 100 

44,200

26, 600 

42, 400 

38, 900 

16, 400 

5,000

1,200 

4,250 

51, 700 

29, 800 

15,000

7,800 

2,700 

5,120 

17,400 

8,000

1,100 

300 

27,900 

25,300 

16,600 

9,700 

10,000 

6,200 

3,200 

840 

255

1.6

513,900 

24, 300

15,300 

S26.600 

19, 800 

4,400 

864 

149 

si, 450 

si 16000 

326,300 

5,020

2,170 

569 

si, 260 

3,430 

994 

101 

25 

i73,000 

:39,000 

[16,100 

4,770 

4,640 

2,110 

752 

145 

31

107200

May

Mean

charge 

(secondfeet)

82 

77 

118 

179 

150

136 

153 

262 

350 

640

990 

720 

396 

200 

142

93 

103 

84 

66 

44

34 

24 

24 

24 

27

27 

28 

29 

32 

32 

30

5,296

Suspended sediment

Mean 

concentration 

(ppm)

115 

210 

1,410 

5,590 

4,320

2,400 

3,580 

6,500 

12,000 

15,900

23,600 

17, 400 

9,100 

4,600 

2,350

1,280 

1,030 

400 

230 

144

62 

53 

45 

32 

22

18 

19 

21 

35 

35 

25

Tons 

per 

day

25 

44 

449 

2,700 

1,750

881 

1,480 

4,600 

11,300 

27,500

63, 100 

33,800 

9, 730 

2,480 

901

321 

286 

91 

41 

17

5.7 

3.4 

2.9 

2.1 

1.6

1.3 

1.4 

1.6 

3.0 

3.0 

2.0

161,500

August

32 

31 

25 

21 

14 

24 

25 

24 

24 

24

24 

31 

348 

50 

35

25 

20 

20 

24 

23 

20 

19 

20 

19 

16 

16 

20 

18 

18 

16 

16

1,042

120 

80 

70 

36 

38

24

47 

T',220 

2,150 

250

136 

49 

45 

45 

21

24

68

55

} « 

} -

-

10 

6.7 

4.7 

2.0 

1.1

1.6

3.9 

s8,200 

290 

24 

9.2 

2.6 

2.4 

2.9 

1.3

1.2

2.9 

3.0

1.9 

1.5

8,590

June

Mean

discharge 

(secondfeet)

29 

27 

24 

23 

22 

22 

20 

20 

57 

52

40 

29 

24 

20 

20 

89 

61 

40 

1,420 

680

298 

287 

150 

99 

73

66 

52 

49 

44

40

3.877

Suspended sediment

Mean 

concentration 

(ppm)

23 

21

} » 

} »

1,420 

1,360

280 

99 

25

} »

9,900 

9,200 

3,980 

55,000 

35,500

21, 700 

16,800 

6,100 

4,400 

2,300

840 

305 

190 

55 

50

Tens 

F*r 

d^y

1.8 

1.5

.8

1.1

219 

191

30 

7.8 

1.6

.9

s2,920 

1,520 

si, 200 

821^000 

s 73, 000

17,500 

13,000 

2,470 

1,180 

453

150 

43 

25 

6.5 

5.4

329.900

September

15 

16 

15 

15 

16

16 

16 

16 

16 

16

15 

18 

18 

20 

24

24 

23 

22 

23 

26 

57 

34 

27 

30 

31

32 

27 

23 

22 

21

674

22 

11

} >

22 

152 

85

57

} "

600 

3,800 

150 

35 

40 

106 

110 

42 

25

} «_ 

0.9

.5

.5 

1.2 

9.8

5.5 

3.5

2.7 

42 

s638 

14 

2.6 

3.2 

8.9 

9.5 

3.1 

1.6

.9

759

Total discharge for year (second-foot-days) 

Total load tor year (tons).................

27,591

994,400

s Computed by subdividing day.
CHEYENNE RIVER BASIN Continued 

CHEYENNE RIVER NEAR HOT SPRINGS, S. DAK. Conti

Particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Apr. 4, 1950 ............

May 4 .................

May 10. ................

May 10. ................

May 11.................

M9V 14

May 14. ................

May 16. ................

June 19 ................

June 21 ................

June 22 ................

July 5 .................

July 13. ................

Time

2:00 p.m. 

6:00 p. m. 

9:30 a. m. 

8:50 a.m. 

10:00 a. m.

10:00 a. m. 

2:00 p. m. 

7:30 a.m. 

7:30 a. m. 

7:30 a. m.

7:30 a. m. 

8:00 a. m. 

6:00 p. m. 

6:00 p. m. 

10:00 a.m.

7:30 p. m. 

6:00 a. m. 

6:00 a. m. 

1:30 p.m. 

6:00 p. m.

8:00 a. m. 

9:00 a.m. 

4:30 p.m. 

4:30 p.m. 

6:00 p. m.

4:00 p. m. 

8:00 a. m. 

2:30 p. m. 

7:00 p. m. 

8:00 a. m.

Discharge 

(secondfeet)

32 

156 

805 

124 

200

139 

298 

600 

600 

990

990 

850 

165 

165 

95

128 

1,200 

1,200 

1,800 

1,930

282 

321 

277 

277 

91

197 

200 

190 

315 

895

Suspended sedim

Concentration 

of sample 

(ppm)

790 

3,780 

21, 700 

1,550 

6,950

2,350 

5,800 

20, 000 

20, 000 

22, 400

22,400 

19, 700 

3,800 

3,800 

1,430

21, 700 

64, 300 

64,300 

52, 400 

48, 100

22, 000 

21,400 

12,400 

12,400 

3,200

43,500 

47,000 

46,600 

55, 600 

58.700

Concentration 

of suspension 

analyzed 

(ppm)

1,110 

5,470 

8,040 

2,430 

8,690

3,180 

9,480 

8,430 

8,060 

8,840

8,690 

4,270 

1,460 

1,380 

2,540

9,390 

22,800 

26, 800 

9,150 

16,400

7,420 

9,470 

7,990 

7,700 

3,970

10,400 

10,600 

9,760 

11,400 

10. 900

Percent finer t

0.002

30 

74

10 

50 

41

78 

0

1 

40

63 

1

0.004

48 

65 

65 

89 

78

86 

70 

10 

65 

42

1 

65 

88 

6 

83

78 

1 

54 

53 

58

82 

80 

76 

2 

95

82 

79 

84 

71 

54

0.008

79

78 

97

12

74 

61

4

95 

28

2

72

89 

5

0.016

96 

85 

87 

97 

98

97 

88 

22 

83 

68

22 

87 

97

97

98 

83 

84 

79 

84

98 

97 

97 

63 

100

98 

98 

100 

97 

88

0.0
July 13 ................

July 23. ................

July 23 ................

July 23 ................

July 26 ................

July 27. ................

Sept. 21. ............... 10:00 a. m.

942

1,200

1,250

1,040

162

179

67

31,300

28, 600

28,600

6,800

9,400

6,450

9,760

9,550

29,700

10, 400

5,790

6,220

4,100 --

52

56

55

58

90

88

92

66

682

--

82

85

80

79

67

81

98

98

98
240 MISSOURI RIVER BASIN

CHEYENNE RIVER BASIN -Continued 

LANCE CREEK AT SPENCER, WYO.

LOCATION. At cableway 150 feet downstream from gaging station, which is ftree-eighths of

a mile south of Spencer, Niobrara County, 1 mile upstream from mouth, aid 34 miles

south of Newcastle. 

DRAINAGE AREA. 2,070 square miles.

RECORDS AVAILABLE. Sediment records: April to September 1950. 

EXTREMES, April to September 1950. Sediment concentrations: Maximum dail-', 55,300 ppm

July 3; minimum daily, no flow on many days.

Sediment loads: Maximum daily, 237,000 tons June 18; minimum daily, 0 tons on many days. 

REMARKS. Records of discharge for water year October 1949 to September 19"0 given in

Water-Supply Paper 1176.

Suspended sediment, April to September 1950

Day

g

12

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean 

discharge 

(secondfeet)

0 

0 

0 

20 

9.8

1.7 

1.0 

6.0 

12 

15

28

57 

29 

14 

3.5

1.3 

.7 

.3 

.1 

.1

.1 

0 

0 

0 

0

0 

0 

. 1 

.2

200.0

Suspended sediment

Mean 

concentration 

(ppm)

9,000 

4,790

810 

410 

1,710 

2,280 

3,790 

8,820 

20, 600 

13, 800 

9,000 

2,930

950 

409 

325

[ 121 

\ 89

--

Tons

per 

day

0 

0 

0 

486 

127

3.7 

1.1 

28 

74 

153

s934 

3,170 

1,080 

340 

28

3.3 

.8 

.3

(t)

0 

0 

0 

0

0 

0

(t)

6,430

May

Mean

charge 

(secondfeet)

0.1 

.2 

1.2 

2.7 

1.5

1.3 

14 

26 

92 

112

72 

34 

19 

14 

9.2

6.5 

3.3 

2.7 

2.2 

1.6

1.1 

.8 

.6 

.7 

1.2

.8 

.6 

.6 

1.5

.7 

.4

424.5

Suspended sediment

Mean 

concentration 

(ppm)

66 

150 

2,210 

3,600 

1,640

7,300 

8,880

32,600

14,500 

6,980 

3,160 

1,090 

420

330 

155 

85 

99 

95

70 

94

I 58

66 

54 

66

Tons 

per 

day

W 0.1 

slO 

26 

6.6

e32 

276 

s716 

e6, 500 

9,860 

2,820 

641 

162 

41 

10

5.8 

1.4 

.6 

.6 

.4

e.3 

.2 

.2 

e.2 

e.3

.1

.3 

.1 

.1

21,110

June

Mean 

discharge 

(secondfeet)

0.3 

.1 

.1 

0 

0

0 

.2 

.7 

1.5 

.3

.2 

.2 

0 

0 

0

0 

3.4 

1,060 

703 

163

72 

38 

20 

12 

8.2

3.8 

3. 8 

3.0 

2.7 

2.5

2,099.0

Suspended sediment

Mean 

concentration 

(pim)

} ::

3,700 

I 98

5< 400 

3' 600 

2\300

17, 200 

10,000 

6,700 

2,540 

830

316 

209 

143 

116 

120

--

Tons 

per 

day

(t)

0 

0

0 

e.8 

el.O 

s52

.1

0 

0

0

0 

e280 

s237,000 

s 88, 200 

9,370

3,340 

1,030 

362 

82 

18

3.2 

2.1 

1.2

.8 

.8

339, 700

e Estimated.

s Computed by subdividing day.

t Less than 0.1 ton.
CHEYENNE RIVER BASIN

CHEYENNE RIVER BASIN Continued

LANCE CREEK AT SPENCER, WYO.--Continued

241

Suspended sediment, April to September 1950 Continued

Day

Q

1C

19

oc

27

28

TotalJuly

Mean

charge 

(secondfeet)

2.2 

2.5 

348 

133 

126

293 

109 

32 

22 

14 

9.2 

805 

212 

41 

20

47 

59 

27 

17 

15

15 

704 

326 

133 

85 

55 

36 

15 

6 

2.5 

1

3,712.4

Suspended sediment

Mean 

concentration 

(ppm)

113 

129 

55, 300 

40, 300 

38,500

45, 900 

24, 700 

8,300 

2,630 

960

320 

40,800 

26, 000 

11,900 

6,400

27,400 

9,630 

4,000 

2,440

27, 100 

28,900 

11,300 

7,800 

9,900 

9,940 

1,510 

360

-

Tons 

per 

day

0.7 

.9 

s 55, 600 

s 16, 000 

s 14, 100

s 54, 000 

s8, 260 

717 

156 

36

7.9 

8123,000 

i 17, 700 

1,320 

346

e 3, 800 

s 5, 680 

702 

184 

99

e90 

s37,lGO 

s28, 100 

4,060 

1,790 

1,470 

966 

61 

5.8 

el. 4 

e.4

395,400

August

Mean 

discharge 

(secondfeet)

0.5 

.2 

0 

C 

0

0 

0 

0 

0 

0

0 

5.4 

24 

6 

1

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

37.1

Suspended sediment

Mean 

concentration 

(ppm)

89 

46

--

Tons 

per 

day

0.1 

(t) 

0 

0 

0 

0 

0 

0 

0 

0

0 

e20 

e320 

e26 

el

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

370

September

Mean 

discharge 

(secondfeet)

0 

0 

0 

0 

0

0 

0 

0 

0

35

51 

26 

5 

1 

0

0 

0 

0 

0 

1.7

12 

4.3 

0 

0 

0 

0 

0 

0 

0 

0

136.0

Suspended sediment

Mean 

concentration 

(ppm)

24,900 

43, 800 

26,500 

7,400

30

Tons 

per 

day

0 

0 

0 

0

0

0 

0 

0 

0 

s 7, 100 

s6,870 

1,860 

100 

e2.6 

0

0 

0 

0 

0 

e3.4

e20 

.3 

0 

0 

0

0 

0 

0 

0 

0

15,960

Total discharge for period Apr. 1 to Sept. 30 (second-foot-days) .................................. 6,609.0

Total load for period Apr. 1 1:0 Sept. 30 (tons)................................................... 77f>, 000

e Estimated.

s Computed by subdividing day.

t Less than 0.1 ton.
CHEYENNE RIVER BASIN Continued 

LANCE CREEK AT SPENCER, WYO. Continued

Particle-size analyses of suspended sediment, April to Septemb

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

May 4 ................

May 7 ................

May 9 ................

June 19 ...............

June 21 ...............

June 24 ...............

July 5 ................

July 6 ................

July 6 ................

July 7 ................

July 12 ...............

July 12 ...............

July 12 ...............

July 13 ...............

Time

8:00 a. m. 

9:00 a.m. 

8:30 a. m. 

9:30 a. m. 

7:00 a. m.

7:00 p. m. 

8:00 a. m. 

8:00 a. m. 

6:30 p. m. 

9:30 a. m.

9:30 a. m. 

7:40 a.m. 

7:30 p. m. 

5:15 p. m. 

5:15 p.m.

6:15 p.m. 

7:30 a.m. 

7:00 a. m. 

7:30 a. m. 

9:00 a. m.

3:30 p.m. 

4:00 p. m. 

4:00 p. m. 

7:00 a. m. 

8:00 p. m.

7:00 p. m. 

9:00 a. m. 

6:30 p. m. 

6:30 p. m. 

7:30 D. m.

Discharge 

(secondfeet)

17 

70 

4.9 

12 

63

203 

122 

122 

27 

5.9

5.9 

1,550 

1,500 

330 

330

316 

82 

17 

440 

163

129 

122 

122 

500 

354

61 

1,130 

1,230 

1,230 

109

Suspended zedim

Concentration 

of sample 

(ppm)

4,820 

22,500 

4,150 

7,800 

13, 000

29, 900 

39, 100 

39, 100 

5,500 

10,400

10,400 

74,000 

55,800 

29, 200 

29, 200

28, 100 

18,000 

3,100 

58, 900 

42, 000

39, 800 

36, 800 

36, 800 

46,800 

45, 200

23, 200 

46, 800 

54,400 

54,400 

19'. 300

Concentration 

of suspension 

analyzed 

(ppm)

4,300 

4,840 

3,410 

6,560 

5,260

5,690 

4,020 

4,050 

4,680 

4,370

4,430 

8,260 

11,700 

8,110 

23,400

10, 900 

7,620 

2,420 

12, 700 

8,040

12,000 

9,980 

30,900 

8,500 

8,160

8,560 

8,760 

9,310 

8,570 

8.300

Percent finer t

0.002

57

55 

5

57 

84 

54

42 

2

0.004

91 

74 

98 

86 

69

57 

66 

12 

92 

91

1

44 

52

70

1

70 

77 

94 

58 

62

71 

70 

1 

53 

59

79 

47 

52 

4 

83

0.008

89

79 

68

81 

7

97

85 

5

61 

26

0.016

97 

95 

98 

99 

88

83 

92 

90 

98 

99

95 

69 

76 

88 

90

90 

90 

98 

84 

95

94 

94 

94 

72 

83

97 

70 

70 

68 

97

0.0
July 17 ...............

July 23 ...............

Sept. 21 .............. 4:25 p.m.

61

22

22

15

757

216

216

94

109

26

9.8

32, 300

8,300

8,300

2,430

21,000

20, 700

20, 700

7,200

77,400

23, 200

861

6,010

4,120

8,080

2,070

6,560

5,210

15,900

5,260

7,790

9,140

484

741

91

631 __

91

78

923

97

49

743

94

72

90

97

_

98

23

99

84

22__"

96

99

99

100

66

91

91

99

97

100

98
CHEYENNE RIVER BASIN Continued 

BEAVER CREEK NEAR NEWCASTLE, WYO.

LOCATION. At gaging station at bridge on U. S. Highway 85, 1 mile downstream from Sheep Creek and 2

DRAINAGE AREA. 1,320 square miles.

RECORDS AVAILABLE. Chemical analyses: December 1949 to September 1950.

Sediment records: March to September 1950. 

EXTREMES, March to September 1950. Sediment concentrations: Maximum daily, 13,700 ppm June 21; min

Sediment loads: Maximum daily, 15,800 tons Apr. 12; minimum daily, 0 tons on many days. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply Pa

Chemical analyses, in parts per million, December 1949 to Septem

Date of collection

Aug 16 . ...

Sept. 20 .............

Discharge 

(secondfeet)

0.8 

a. 3 

a. 9 

all 

a 132

12 

8.7 

.9 

.6 

.3

.3 

19 

2.1

Temperature 

(°F)

PH

7.4 

7.7 

7.4 

7.9 

7.7

7.5 

7.3 

7.6 

7.4 

7.2

7.4 

7.4 

7.1

Specific 

conductance 

(micromhos at 

25* C)

7,670 

10,000 

9,940 

4,590 

2,300

7,160 

3,540 

5,720 

4,470 

2,310

2,740 

1,660 

5,590

Silica 

(Sip,)

9.8 

19 

17 

31 

16

9.1 

8.1 

6.9 

4.4 

5.4

4.6 

9.4 

6.6

Iron 

(Fe)

0.06

.02 

.02 

.04

.06 

.04 

.04 

.04 

.04

.02 

.02 

.02

Calcium 

(Ca)

536 

680 

820 

425 

158

442 

248 

420 

344 

168

206 

167 

396

Magnesium 

(Mg)

255 

378 

425 

111 

35

145 

84 

172 

123 

49

71 

43 

150

So- Podium tas" 

(Na, -j1,190 

1,620 

1,220 

572 

298

1,030 

478 

793 

840 

340

437 

147 

791

Bicarbonate 

(HCO.)

224 

448 

496 

240 

142

196 

158 

191 

156 

122

131 

115 

104

Sulfate 

(SOJ

2,530 

3,330 

3,360 

1,500 

575

1,670 

1,150 

2,050 

1,830 

1,060

1,360 

740 

1,920

Chloride 

(Cl)

1,520 

2,080 

1,800 

710 

33

1,440 

49

84

51

10

16

3

87

a Mean daily discharge.
CHEYENNE RIVER BASIN

CHEYENNE RIVER BASIN Continued

BEAVER CREEK NEAR NEWCASTLE, WYO.--Continued

245

Suspended sediment, Mfirch to September, 1950

Day

 J

0

in

99

25 

9fl

31 ......

Totallfl

91

22 . 

23 .... 

24 ------ 

25 

26 ------ 

27 ----- - 

28 

29 ----- - 

30 . 

31 ......

TotalJanuary

Mean

charge 

(secondfeet)

40 

69 

140 

227 

132

73 

49 

54 

123 

121

184 

478 

163 

61 

43 

34 

30 

24 

19 

16 

15 

14 

13 

12 

11

11 

11 

11 

11 

11

2,200

Suspended sediment

Mean 

concentration 

(ppm)

April

550 

4,740

5,100

3,130 

1,230 

920

5,140

6,610 

11,900 

7,560 

1,490 

570 

360

250 

195 

154

~

Tons 

per 

day

59 

6500 

1,790 

e4,300 

si, 960

617 

163 

134 

el, 400 

1,680 

s4,060 

! 15, 800 

S3, 570 

245 

66

33 

e24 eie

13 

8.4 

6.2

e4 

e2

36,470

February

Mean

charge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

May

11 

12 

26 

25 

22

35 

66 

52 

105 

257 

435 

198 

52 

35 

29

23 

16 

12

8.7 

7.4 

7.1 

9.4 

8.7 

8.4 

6.5

10 

7.8 

5.0 

4.0 

2.8 

3.4

1,500.2

53 

133 

124

1,360 

3,730 

6,540 

8,190 

8,030 

3,250 

750 

275

93 

73 

50

58

54 

56

I 62

el. 6 

1.7 

sl2 

8.4 

e6. 5

e320 

eSOO 

191 

si, 090 

s5,440 

,89,840 

s4,870 

456 

71 

22

5.8 

3.2 

1.6

1.3

1.5 

1.2

.6

22,960

March

Mean

charge 

(secondfeet)

20 

22 

24 

25 

27 

29 

31 

32 

32 

32

33 

34 

35 

43 

52 

45

516

Suspended sed'ment

Mean 

concentration 

(ppm)

62

54 

46 

44

65 

90 

140 

245 

273

240 

460 

680 

423

487

Tins

r*r

gay

3.3 

3.2 

3.0 

3.0 

e4

5.1 

7.5 

12 

21 

24

e22 

22 

43 

79 

59 

59

370

June

2.8 

1.2 

.7 

.9

.7

.7 

.8 

1.2 

.8 

.7 

.4 

.4 

.4 

.4 

.3 

.2 

.3 

.5 

.6 

86 

123 

23 

10 

5.8 

4.0

2.8 

1.5 

.9 

.7 

.4

272.1

54 

54

52

35

33

2,260 

13,700 

2,890 

298 

126 

119

64 

53 J ::

0.4 

.2

.1 

e.2

(t)

(t)

si, 150 

s5,070 

179 

8.0 

S2.2 

1.3

.5 

.2

.1

6,410

e Estimated.

s Computed by subdividing day.

t Less than 0.1 ton.
246 MISSOURI RIVER BASIN 

CHEYENNE RIVER BASIN Continued 

BEAVER CREEK NEAR NEWCASTLE, WYO. Continued

Suspended sediment, March to September 1950 Continued

Day

2

IS 

1A

20- 

22

23 

25 

Oft

oo

30 

TotalJuly

Mean

charge 

(secondfeet)

0.2 

.3 

.4 

.4 

.4

.4 

.3 

.2 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.2 

.4 

.1 

.1

0 

.4 

.2 

.1 

.1

0 

0 

.1 

.1 

0 

0

5.2

Suspended sediment

Mean 

concentration 

(ppm)

35

39

46

115 

87

} 20

} »

Tons 

per 

day

(t)

(t)

(t)

0 

.1 

(t) 

(t)

o

0

(t)

0 

0

0.7

August

Mean

charge 

(secondfeet)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

1.9 

3.4 

2.2 

13

21 

6.0 

1.6 

.4 

.4

.2 

.1 

0 

0 

0

0 

0 

0 

0 

0 

0

50.2

Suspended sediment

Mean 

concentration 

(ppm)

13 

36 

43

3,220 

392 

141 

116 } :

Total discharge for period Mar. 16 to Sept. 30 (second-foot-days) 

Total load for period Mar. 16 to Sept. 30 (tons) ...............

Tons 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

s.2 

.3 

.3 

e!60

s227 

6.4 

.6 

.1

(t)

0 

0 

0

0 

0 

0 

0 

0 

0

395

September

Mean

charge 

(secondfeet)

0 

0 

0 

0 

0

0 

6.4 

.9 

.1 

.4

.1 

.1 

.1 

1.6 

2.8

2.4 

1.5 

1.1 

.8 

2.2

16 

7.8 

30 

11 

5.0

3.0 

1.6 

.9 

.5 

.3

96.6

Suspended sediment

B'^an 

concentntion 

(ppm)

380 

343

} 

I 351

} 274 

10

315 

465 

I 112

> !

Tons 

per 

day

0 

0 

0 

0 

0

0 

e!5 

.9 

e.l 

.4

e.l 

.1

2.1

.7 

.1

e!6

S7.7 

e55 

14

1.0 

(t)

120

4,640.3 

66,730

e Estimated.

s Computed by subdividing day.

t Less than 0.1 ton.
CHEYENNE RIVER BASIN Continued 

BEAVER CREEK NEAR NEWCASTLE, WYO.~Continue

Particle-size analyses of suspended sediment, April to Augus

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

May 9

Aug. 16 .................

Time

5:35 p. m. 

5:35 p.m. 

5:30 p. m.

6:50 p.m. 

5:55 p.m. 

5:30 p. m.

8:30 a.m. 

8:30 a.m. 

3:05 p.m. 

7:45 p.m. 

12 -.15 p.m.

Discharge 

(secondfeet)

97 

97 

398

95 

368 

98

162 

162 

65 

45 

18

Suspended sedim

Concentration 

of sample 

(ppm)

4,250 

4,250 

9,940

3,950 

6,380 

6,980

15,600 

15,600 

13,000 

11,300 

3,160

Concentration 

of suspension 

analyzed 

(ppm)

6,300 

4,790 

6,670

3,090 

4,780 

4,700

3,250 

3,240 

4,680 

3,930 

5,000

Percent finer t

0.002

25 

70 

68

72 

0

77

0.004

25 

85 

81

79 

74 

76

83 

2 

87 

88 

85

0.008

28 

96 

91

94 

12

90

0.016

93 

100 

98

95 

96 

98

99 

97 

100 

99 

92

0.0
CHEYENNE RIVER BASIN Continued 

BELLE FODRCHE RIVER BELOW MOORCROFT, WYO.

LOCATION. At gaging station at bridge on U. S. Highway 14, 

. 1,730

miles upstream from Wind Creek, and 5

DRAINAGE AREA. 1,730 square miles. 

RECORDS AVAILABLE. Chemical analyses: December 1949 to September 1950.

Sediment records: May to September 1950. 

EXTREMES, May to September 1950. Sediment concentrations: Maximum daily, not determined; minimum d

Sediment loads: Maximum daily, 7,300 tons (estimated) May 10; minimum daily, 0 tons on many days. 

REMARKS . Records of discharge for water year October 1949 to September 1950 given in Water-Supply P

Chemical analyses, In parts per million, December 1949 to Augu

Date ef collection

Dec. 6, 1949 ........

Mar. 8, 1950 ........

May 20 .............

June 8 ..............

June 23 .............

July 6 ..............

July 18. .............

Aug. 16.............

Discharge 

(secondfeet)

0.1 

a. 4 

a78 

112 

1.5

1.9 

.6 

.8 

1.4 

1.4

Temperature 

(«F)

PH

7.8 

8.0 

7.1 

7.3 

7.8

7.9 

7.9 

7.6 

7.6 

7.5

Specific 

conductance 

(micromhos at 

25° C)

2,260 

2,060 

470 

695 

1,190

1,790 

2,000 

2,030 

1,970 

1,160

Silica 

(SiQ.)

16 

16 

18 

20 

11

8.7 

7.5 

7.1 

6.1 

7.8

Iron 

(Fe)

0.02 

.04

.04 

.04

.04 

.10 

.06 

.02 

.02

Calcium 

(Ca)

136 

95 

32 

49

74

108 

112 

105 

116 

62

Magnesium 

(Mg)

64 

63 

13 

23 

37

53 

63 

60 

65 

31

Sodium 

(Na)

Potassium 

(K)

335 

325 

44 

67 

153

259 

298 

291 

327 

154

Bicarbonate 

(HCO.)

460 

454 

112 

120 

252

394 

350 

374 

364 

191

Sulfate 

(SO,)

895 

780 

128 

250 

438

685 

850 

785 

910 

430

Chloride 

(Cl)

14 

12 

.5 

1.0 

4.0

8.0 

8.0 

11 

14 

6.0
CHEYENNE RIVER BASIN 249

CHEYENNE RIVER BASIN Continued

BELLE FOURCHE RIVER BELOW MOORCROFT, WYO. Continued 

Monthly and annual summary of water and suspended-sediment discharge, May to September 1950

Month

May...............

July ...............

Period, May 1 to 

Sept. 30. ........

Discharge 

(secondfoot-days)

2,130.9 

100.9 

15 

71.8 

0

2,319.2

Runoff 

(acre -feet)

4,230 

200 

31 

142 

0

4,600

Suspended sediment

Load 

(tons)

24,400 

24.8 

2.5 

515 

0

24,900

Daily load (tons)

Mean

787 

.8 

.1 

16 

0

163

Maximum

e7,300 

5.1 

.3 

502 

0

7,300

Minimum

(t) 

(t) 

0 

0 

0

0

Concentratic n (ppm)

Weighted 

mean

4,240 

91 

59 

2,630

3,980

Maximum 

daily

145 

1,650

e Estimated.

t Sediment discharge less than 0.1 ton.
CHEYENNE RIVER BASIN Continued 

BELLE FOURCHE RIVER BELOW MOORCROFT, WYO. Conti

Particle-size analyses of suspended sediment, May to August 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, In distilled water; C, chemically dispersed; M, mechanically 

Date of collection

May 4, 1950 .............

May 4 ...................

May 5 ...................

May 9 ...................

Aug. 16 .................

Time

1:10 p.m. 

1:10 p.m. 

9:40 a. m. 

2:45 p.m. 

2:40 p. m. 

3:15 p.m.

Discharge 

(secondfeet)

111 

111 

112 

258 

75 

1.5

Suspended sedi

Concentration 

of sample 

(ppm)

3,320 

3,320 

1,390 

3,010 

2,000 

321

Concentration 

of suspension 

analyzed 

(ppm)

3,620 

4,670 

3,220 

2,400 

990 

616

Percent finer 

0.002

14 

76

81 

90

0.004

33 

87 

90 

80 

89 

95

0.008

95 

96

95 

96

0.016

98 

99 

97 

95 

99 

98

0.
CHEYENNE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN CHEYENNE RIVER BASIN IN 

Chemical analyses, in parts per million, water year October 1949 to Sep

Date of collection

Discharge 

(secondfeet)

pH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodinm 

(Na)

Potassium 

(K)

Carbonate 

(CO,)

Bicarbonate 

(HCQ.)

Sulfate 

(SO,)

Chloride 

(Cl)

ANGOSTURA RESERVOIR

Sept. 19 ..........

a 5,600 

a 6, 100 

a 6, 900 

a 6, 000 

a 5, 100 

a 4, 000 

a 3, 100

7.5 

7.4 

7.4 

7.7 

7.6 

7.7 

7.6

2,150 

2,120 

2,010 

1,990 

1,990 

1,980 

2,000

11 

12 

11 

12 

10 

14 

12

0.02 

.02 

.02 

.04 

.04 

.04 

.02

276 

271 

267 

232 

231 

234 

240

63 

67 

62 

52 

53 

50 

53

201 

199 

201 

172 

176 

177 

170

0 

0 

0 

0 

0 

0 

0

160 

160 

164 

163 

163 

168 

173

1,030 

1,030 

1,010 

863 

870 

865 

880

127 

127 

120 

93 

95 

93 

88

CHEYENNE RIVER NEAR WASTA

Mar. 24, 1450 .... 

July 25 ...........

35 

1,560 

136

7.8 

8.0 

8.1

1,430 

703 

2,100

11 

33 

15

0.02 

.04 

.02

137 

43 

238

60 

6.8 

60

112 

109 

189

0 

0 

0

191 

156 

128

578 

213 

950

50 

13 

111

CHEYENNE RIVER NEAR EAGLE BUTTE

Oct. 7, 1949 .......

Sept. 19 ...........

188 

2.4 

6,400 

288 

375

7.4 

7.6 

7.7 

7.4 

7.6 

7.7

1,550 

2,110 

2,880 

880 

1,930 

1,850

10 

8.2 

28 

16 

12 

23

0.00 

.06 

.01 

.04 

.02 

.02

171 

104 

330 

106 

222 

187

56 

83 

116 

15 

86 

65

161 

321 

322 

71 

194 

180

0 

0 

0 

0 

0 

0

152 

111 

342 

156 

134 

148

722 

1,110 

1,580 

323 

1,110 

925

91 

35 

51 

10 

43 

26

BELLE FOURCHE RIVER NEAR STURGIS

Dec. 22, 1949 ......

Jan. 20, 1950 .....

Sept. 19 ...........

10 

4.7 

211 

840 

493 

284

7.5 

7.7 

7.8 

7.5 

8.0 

7.7

2,490 

2,660 

1,720 

1,370 

1,680 

1,850

16 

25 

10 

12 

10 

6.5

0.02 

.06 

.04 

.04 

.02 

.04

352 

288 

149 

138 

206 

225

130 

152 

78 

54 

71 

79

125 

209 

147 

103 

108 

130

0 

0 

0 

0 

0 

0

411 

230 

166 

172 

172 

181

1,260 

1,500 

805 

605 

840 

960

19 

31 

22 

13 

14 

14

BELLE FOURCHE RIVER NEAR ELM SPRINGS

July 25 ...........

19 

2.9 

2,830 

284 

234

7.7 

7.8 

7.3 

7.6 

8.0

2,760 

3,630 

1,170 

1,860 

1,930

11 

24 

21 

10 

8.6

0.02 

.06 

.06 

.04 

.02

1 302 

399 

119 

161 

218

131 

218 

36 

73 

87

277 

341 

101 

181 

142

0 

0 

0 

0 

0

226 

264 

158 

160 

158

1,590 

2,250 

495 

890 

1,010

33

50 

12 

22 

18

a Reservoir storage, in acre-feet.
252 MISSOURI RIVER BASIN

CHEYENNE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN CHEYENNE RIVER BASIN IN SOUTH DAKOTA Continued 

Periodic determinations of suspended-sediment discharge, water year October 1949 to September 1950

Date

Instantaneous 

water discharge 

(second-feet)

Suspended sedime-it

Mean 

concentration 

(PPm)

Instantaneous 

discharge 

(tons per day)

CHEYENNE RIVER AT ANGOSTURA RESERVOIR OUTLET

July 17 ................

Sept. 19 ...............

2 1 3d

a 1 1 9

a 28

1

1

1

1

1

2

1

1

1

1

1

1

2

1

1

8

6

2

.4

.4

.3

.3

.3

.4

.5

1.0

.5

.5

.4

.4

.4

.4

.7

.3

.3

1.7

.9

.2

CHEYENNE RIVER BELOW ANGOSTURA DAM

Sept. 19 ...............

July 26 ..'..............

e Estimated, 

a Mean daily discharge.

28

HAT CREEK NEA

O9

e.OOl

11.8

42

66

79

86

19

10

12

R EDGEMONT

73

112

127

42

103

465

12

22

42

27

4.1

1.5

.9

3.6

.2

1.5

.0001

.2

13
CHEYENNE RIVER BASIN Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN CHEYENNE RIVER BASIN IN SOU

Particle-size analyses of suspended sediment, water year October 1949 t

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection Time

Discharge 

(secondfeet)

Suspended sedim

Concentration 

of sample 

(ppm)

Concentration 

of suspension 

analyzed 

(ppm)

Percent finer 

0.002 0.004 0.008 0.016 0.0

HAT CREEK NEAR EDGEMONT

July 26 ................

5:20 p.m. 

8:00 a.m. 

4:00 p.m. 11.8

377 

1,870 

465

903 

5,700 

1,230

58 

57

76 

77 

94

88 

94 98 

99
BAD RIVER BASIN 

MISCELLANEOUS ANALYSES OF STREAMS IN BAD RIVER BASIN IN S

Chemical analyses, In parts per million, March to April 1950

Date of collection

Discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(SiQ,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium

(Na)

Potassium 

(K)

Carbonate 

(CO,)

Bicarbonate 

(HCQ,)

Sulfate 

(SO,)

Chloride 

(Cl)

BAD RIVER NEAR MIDLAND

Mar. 31 ............

Sept. 21 ............

14

4,270

11

7

7.5

7.7 1,520

14

14

18 .02 105

14

5 2

18

109

212

0

0 132

299

608 38

BAD RIVER NEAR FORT PIERRE

Mar. 28, 1950 ......

Apr. 1 .............

863

15,100

17 C

7.5 678

23

17 .04

rjn

78

9 3

9.5

40

61 0 160 212 8.0 
BAP RIVER BASIN 255

BAD RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN BAD RIVER BASIN IN SOUTH DAKOTA Continued 

Periodic determinations of suspended-sediment discharge, water year October 1949 to September 1950

Date

Instantaneous 

water discharge 

(second -feet)

Suspended sediment

Mean 

concentration 

(ppm)

Instantaneous 

discharge 

(tons per day)

BAP RIVER NEAR FORT PIERRE

Mar. 31. .............,,,,

Apr. r. ..................

Apr. 4 ...................

Apr. 10 ..................

Apr. 12 ..................

May 2 ...................

Mav 8

Mav 9

May 10 ..................

June 13 ..................

June 30 ..................

Sept 21. .................

10,500

601

524

18.5

3.7

5,140

18,500

13,200

20, 200

18,400

4,440

8,220

205

41,700

524,000

535,000

497,000

471,000

267,000

140,000

114,000

7,200

11,600

19

1,010,000

425,000

253,000

4.3

1.4

2.0

595,000
BAD RIVER BASIN Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN BAD RIVER BASIN IN SOUT

Particle-size analyses of suspended sediment, water year October 194

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanicall

Date of collection Time

Discharge 

(secondfeet)

Suspended sed

Concentration 

of sample 

(ppm)

Concentration 

of suspension 

analyzed 

(ppm)

Percent finer 

0.002 0.004 0,008 0.016 0

BAD RIVER NEAR FORT PIERRE

Mar. 28, 1950. ..........

Mar. 31 ................

Apr. 1 .................

Apr. 1 ................

Apr. 4 .................

Apr. 7 .................

Apr. 10 ................

Apr. 12 ................

May 8 ..................

May 9 ..................

May 10 .................

May 10 .................

Sept. 21 ................

12:15 p.m.

11:44 a.m.

842

9,490

8,030

4,660

5,100

18,400

41,700

4,610

4

ne/\

10,400

44

51

44

66

63

on

no

72

_,

88

79

91
WHITE RIVER BASIN 

WHITE RIVER NEAR OGLALA, S. DAK.

LOCATION(revised).--At gaging station at bridge on U. S. Highway 18, 3 miles downstream from Blackta

Shannon County.

DRAINAGE AREA. 2,200 square miles. 

RECORDS AVAILABLE. Chemical .analyses: November 1946 to August 1947, December 1949 to September 195

Water temperatures: April 1949 to September 1950.

Sediment records: March 1947 to September 1950.

many days during December 1949 to April 1950.

Sediment concentrations: Maximum daily, 34,400 ppm Nov. 2, 1948; minimum daily, not determined.

Sediment loads: Maximum daily, 36,400 tons May 24, 1949; minimum daily, 0.3 ton Jan. 19, Feb. 2, 

IMARKS. Records of discharge for water year October 1949 to September 1950'given in Water-Supply P

REMARKS

Chemical analyses, in parts per million, December 1949 to Septem

Date of collection

Dec. S, 1949 ....... 

Jan. 30, 1950. ......

Feb. 27 ............

Apr. 11............

May 17.............

May 23.............

June 12 ............

July 17.............

July 24.............

July 25. ............

Sept. 8 ............

Sept. 28. ...........

Discharge 

(secondfeet)

17 

8 

59 

68 

81 

48

32 

31 

47 

10 

26 

7 

47

8 

20 

8 

49 

23

Temperature

(°F)

pH

7.8 

8.1

7.9 

7.5 

7.6 

8.0

7.7 

7.8 

7.5 

7.7 

7.5 

8.0 

7.4

7.5 

7.8 

7.6 

7.6 

8.0

Specific 

conductance 

(micromhos at 

25* C)

1,080 

818 

549 

629 

698 

731

757 

935 

546 

902 

534 

706 

695

1,080 

828 

806 

722 

594

Silica 

(SiO,)

30 

61 

45 

38 

37 

35

37 

35 

46 

39 

43 

31 

45

16 

35 

29 

38 

48

Iron 

(Fe)

0.02 

.12 

.14 

.04 

.04 

.04

.10 

.16 

.10 

.04 

.04 

.02 

.04

.02 

.04 

.02 

.02 

.04

Calcium 

(Ca)

84 

79 

59 

52 

80 

59

59 

74 

32 

66 

38 

51 

58

123 

53 

85 

46 

35

Magnesium 

(Mg)

22 

19 

10 

7.9 

8.0 

11

10 

14 

2.8 

9.5 

3.0 

4.6 

5.4

13 

8.7 

10 

3.4 

3.5

Sodium 

(Na)

Potassium 

(K)

137 

89 

55 

78 

93 

91

100 

116 

90 

129 

77 

102 

97

110 

126 

99 

111 

93 .

Bicarbonate 

(HCO,)

320 

344 

240 

248 

258 

256

272 

275 

230 

288 

200 

192 

224

199 

245 

221 

205 

208

Sulfate 

(S04)

293 

153 

93 

109 

150 

156

180 

233 

85 

223 

94 

190 

163

398 

203 

208 

176 

113

Chloride 

(Cl)

20 

16 

8.

8.

10 

11

9.

15 

5.

9.

7.

6.

11

12 

13 

11

9.

7.
258 MISSOURI RIVER BASIN

WHITE RIVER BASIN Continued 

WHITE RIVER NEAR OGLALA, S. DAK. Continued

imperative (°F) of water, water year October 1949 to September 1950 

/Slice-daily temperature measurement between 4 p. m. and 7 p. mj

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

Average

Oct.

60

61

59

61

60

59

49

48

49

52

48

50

47

47

49

49

46

50

43

44

39

41

40

45

45

46

45

44

44

42

42

48

Nov.

43

41

43

41

40

41

40

39

38

44

40

39

37

39

38

32

35

39

41

35

32

33

45

38

39

38

40

44

45

36

--

39

Dec.

34

32

34

33

32

34

32

33

34

32

35

36

32

32

39

31

35

32

31

32

34

34

32

32

32

32

32

33

35

32

33

Jan.

32

32

32

32

32

_

..

...

--

_

..

--

..

-~

Feb. Mar.

34

35

36

40

41

33

32

32

31

32

32

31

31

34

43

32

33

35

34

34

32

34

32

31

32

32

32

34

32

31

34

Apr.

31

34

39

31

34

35

_

39

33

38

39

32

43

44

45

48

50

45

42

43

47

52

54

47

48

42

44

38

_

_

41

May

_

51

49

..

"

__

_

_

__

__

_ 

52

52

48

44

45

49

31

37

34

36

40

41

37

41

--

June

37

49

38

36

30

32

69

65

65

66

71

74

75

74

74

68

68

69

68

66

74

70

71

78

71

69

71

70

69

72

--

64

July

70

71

72

72

73

69

75

76

75

79

78

70

69

66

71

65

68

67

68

72

67

61

68

65

70

71

74

75

71

72

68

70

Aug.

67

73

74

74

72

75

70

75

73

72

72

72

73

71

75

72

70

71

65

66

65

69

70

69

66

65

65

66

68

72

72

70

Sept.

72

72

72

72

73

70

72

63

65

57

51

58

54

57

54

54

60

62

61

60

61

61

59

60

59

61

57

55

50

49

61
WHITE RIVER BASIN

WHITE RIVER BASIN Continued

WHITE RIVER NEAR OGLALA, S. DAK. Continued

Suspended sediment, water year October 1949 to September 1950

Day

If)

25

9A

net

31 ......

Totalg

1ft

22 ----- - 

23 ----- 

24 ......

25 

26 

27 

28 

29 

so si ... ...

TotalOctober

Mean

charge 

(secondfeet)

6 

6 

6 

6 

6 

10 

10 

9 

9 

16

22 

19 

20 

26 

28

18 

16 

16 

20 

19

19 

18 

18 

20 

18

18 

21 

18 

17 

17 

17

489

20 

18 

15 

11 

11 

12 

13 

15 

16 

17

17 

17 

16 

14 

12 

10 

10 

9 

10 

12

15 

18 

20 

19 

17 

12 

10 

10 

9 

7 

8

420

Suspended sediment

Mean 

concentration 

(ppm)

129

I 108

175

455 

205 

235 

400 

360

218 

265 

170 

152 

240

210 

105

85

75

--

January

57 

45 

36 

21

17

24 

21

} - 

} "

74

80 

43 

60 

109 

54 

23 

22 

15 

14 

18 

21

Toas 

per 

day

2.1

2.8

7.6

27 

11 

13 

28 

27

11 

11 

7.3 

8.2

12 

11 

5.1

4.4

3.5

237

3.1 

2.2

1.5 

.6

.6

1.1 

1.0

.6

.5

2.4

3.2 

2.1 

3.2 

5.6 

2.5 

.7 

.6 

.4 

.3 

.3 

.5

38.7

November

Mean

charge 

(secondfeet)

16 

17 

17 

17 

16

17 

17 

18 

23 

40

38 

38 

38 

38 

30

24 

21 

19 

18 

18

17 

17 

19 

20 

18

19 

22 

21 

22 

21

676

Suspended sediment

Mean 

concentration 

(ppm)

54

180

163

142 

149 

117 

95

82 

72

72

59 

56 

63

February

8 

9 

11 

12 

15 

18 

21 

23 

27 

30

32 

30 

27 

25 

25 

30 

36 

42 

47 

50

55 

55 

50 

50 

50 

55 

60 

65

958

} ,,

44 

28 

62 

57 

81 

81

24

} »

27 

32 

31 

36

} " 

} "

57 

36 

70

--

Tuns 

per 

day

2.5

e8 

19

17 

15 

15 

12 

7.7

5.3 

4.1 

3.7

2.8 

2.9

3.7

164

0.8

1.4 

1.1 

3.0 

3.2 

5.0 

5.9 

e5

e3

1.9

1.3

2.2 

3.1 

3.5 

4.6

3.7

5.0

8.5 

5.8 

12

102

December

Mean

charge 

(secondfeet)

20 

20

19 

17 

17 

18 

20 

18 

17 

18

19 

17 

15 

15 

15

16

17 

17 

17 

16

15 

15 

15 

15 

15

15 

15 

16 

17 

19 

20

525

Suspended sedi-nent

Mean 

concentration 

(ppm)

52 

64 

70 

41 

55

74 

55 

78 

60

} "

I 49 

63

} «

36 

27

30

--

March

65 

60 

55 

60 

65 

75 

80 

85 

80 

75

70 

65 

65 

70 

75 

80 

90 

90 

80 

85

90 

95 

110 

120 

137 

154 

154 

142 

126 

129 

121

2,848

117 

71 

58 

85 

97

I 99

73 

69

55 

i 38

45 

132 

190 

53 

48 

60

47 

263 

705 

358 

200 

220 

192 

235 

290 

308 

437

-

Tons 

I»vr

2.8 

3.5 

3.6 

1.9 

2.5

3.6 

3.0 

3.8 

2.8

2.1

2.0

2.7 

1.8

1.5 

1.1

1.4

63.7

21 

12

8.6

14 

17

21

16 

14

10 

6.8

9.1 

29 

46 

13 

10 

14

11 

67 

209 

116 

74 

91 

80 

90 

99 

107 

143

1,400
260 MISSOURI RIVER BASIN

WHITE RIVER BASIK Continued 

VfHITE RIVER HEAR OGLALA, S. DAK. Continued

Suspended sediment, water year October 1949 to September 1950 Continued

Day

2

g

Q

14

1 ft

22

25

26

27

28

31 ------

Total2

4

8 

10 

11 ......

13 

14 ----- 

15 -----

16 ----- 

17 

18 ----- 

19 

20 

21 

22 

23 

24 ----- 

25 

26 ----- 

27 ----- 

28 . 

29 ----- 

30 

31 

Total

April

Mean

charge 

[secondfeet)

114 

92

87 

114 

108

92 

84 

87 

80

72

68 

61 

81 

111 

70

61 

58 

63 

66 

54

48 

45 

47 

48 

45 

39 

43 

45 

50 

53

2,086

Suspended sediment

Mean 

concentration 

(ppm)

610 

1,190 

1,000 

1,510 

1,380

4,000 

3,970 

5,370 

2,400 

1,790

2,870 

2,700 

2,290 

5,320 

11,200

13,000 

9,050 

4,100 

1,500 

750

522

475 

420 

400 

335

295 

255 

2400 

265 

900

Tons 

per 

day

188 

s302 

235 

465 

402

994 

900 

1,260 

518 

348

527 

445 

s521 

s 1, 650 

2,120

2,140 

1,420 

697 

267 

109

68 

58 

53 

52 

41

31 

30 

29 

36 

129

16,040

July

10 

12 

13 

13 

12

12 

15 

14 

13 

11

10 

11 

10 

8 

38 

33 

31 

23 

13 

16 

11 

10 

10 

33 

51 

48 

27 

23 

29 

31 

28

619

485 

515 

520 

645 

715

530 

455 

430 

440 

432

400 

450 

326 

282 

1,090

2,700 

5,620 

7,100 

3,500 

2,100

1,950 

1,980 

580 

3,510 

14,200 

7,500 

2,980 

4,630 

2,400 

10, 500 

2,920

--

13 

17 

18 

23 

23

17 

18 

16 

15 

13

11 

13 

8.8 

6.1 

s!43

241 

s452 

441 

123 

91 

58 

53 

16 

s592 

si, 930 

972 

217 

288 

188 

879 

221

7,120

May

Mean

charge 

second - 

feet)

63 

80 

99 

114 

134

111 

84 

115 

320 

352

287 

176 

108 

84 

72

68 

63 

61 

61

57

52 

49 

48 

48 

46 

44 

44 

46 

49 

52 

52

3,039

Suspended sediment

Mean 

concentration 

(ppm)

1,990 

2,560 

2,670 

3,310 

7,640

13,000 

9,600 

6,650

10,100 

9,930 

18,600 

10, 600 

5,900 

2,900

1,900 

1,320 

950 

680 

578

465 

438 

360 

800 

378

262 

250 

246 

305 

332 

298

Tons 

per 

day

338 

553 

714 

si, 110 

2,760

3,900 

2,180 

s2,100 

e8,100 

s 9, 870 

37,890 

s9,220 

3,090 

1,340 

564

349 

225 

156 

112 

89

65 

58 

47 

104 

47 

31 

30 

31 

40 

47 

42

55,200

August

20 

16 

13 

16 

17

16 

9 

14 

16 

13

9 

8 

14 

26 

21 

41 

25 

14 

10 

7

10 

8 

7 

6 

5 

13 

22 

77 

52 

22 

14

561

2,190 

1,720 

700 

1,020 

1,140

720 

292 

312 

500 

492

298 

232

6,060 

1,510 

1,810

3,000 

3,000 

1,250 

1,500 

1,360

685 

458 

495 

560 

592 

3,180 

2,010 

6,250 

10,700 

5,850 

4,400

-

118 

74 

25 

44 

52

31 

7.1 

12 

22 

17 

7.2 

5.0 

s237 

s!09 

103

332 

202 

47 

40 

26

18 

9.9 

9.4 

9.1 

8.0 

s!07 

sl26 

si, 610 

si, 560 

347 

166

5,480

June

Mean

charge 

secondfeet)

68 

61 

44 

38 

35

33 

32 

28 

28 

30

27 

30 

30 

32 

31

30 

75 

72 

51 

60

41 

50 

34 

24 

19

15 

12 

11 

11 

10

1,062

Suspended sediment

Mean 

concentration 

(pom)

580 

497 

455 

2,000 

1,820

4,280 

1,650 

980 

890 

674

590 

570 

532 

4,100 

1,680

910 

2,600 

3,870 

9,800 

15,000

10,200 

9,700 

5,000 

2,300 

4,600

7,500 

1,400 

690 

535 

510

Tons 

per 

day

106 

82 

54 

205 

172

381 

143

74 

67 

55

43 

46 

s44 

354 

141

74 

526 

752 

1,350 

s 2, 520

1,130 

1,310 

459 

149 

236 

304 

45 

20 

16 

14

10,870

Sept >iiber

30 

19 

12

9

7

7 

7 

6 

5 

6 

6 

7 

44 

45 

26

19 

19 

21 

50 

78

110 

87 

43 

50 

28 

17 

16 

13 

13 

22

822

4,550 

3,550 

2,100 

2,650 

602

419 

255 

372 

445 

432

357 

272 

1,860 

9,100 

29,300

22,000 

18,500 

13,900 

9,580 

10,700

14,500 

11,100 

6,380 

6,290 

4,700 

10,400 

5,780 

4,800 

1,820 

1,490

-

S388 

182 

68 

64 

11

7.9 

4.8 

6.0 

6.0 

7.0 

5.8 

5.1 

s317 

1,110 

2,060

1,130 

949 

788 

Si, 320 

2,250

s4, 170 

82,770 

741 

849 

355 

477 

250 

168 

64 

3105

20,630

Total discharge for year (second-foot days) 

Total load for year (tons) .................

14,105

117,300

e Estimated.

s Computed by subdividing day.
WHITE RIVER BASIN Continued 

WHITE RIVER NEAR OGLALA, S. DAK. Continued

Particle-size analyses of suspended! sediment, April to Septembe

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Apr. 14 .................

May 3 ..................

May 3 ..................

May 6 ..................

May 8 ..................

May 10 .................

May 14 .................

May 17 .................

June 24 .................

July 16 .................

July 18 .................

July 24 .................

Time

9:20 a.m. 

5:45 p. m. 

7:30 a.m. 

1:15 p. m. 

11:50 a.m.

6:30 p.m. 

7:00 a. m. 

6:30 a. m. 

6:30 a. m. 

8:30 a. m.

8:30 a. m. 

7:00 a. m. 

9:00 a. m. 

7:00 a.m. 

6:15 p.m.

8:30 a.m. 

6:30 p. m. 

8:30 a. m. 

10:00 a. m. 

6:30 p.m.

7:00 p. m. 

9:30 a. m. 

8:30 a. m. 

7:30 p.m. 

6:30 p. m.

8:30 a. m. 

6:50 p.m. 

6:50 prm. 

7:30 a. in. 

2:00 o.m.

Discharge 

(secondfeet)

99 

82 

124 

59 

94

104 

142 

134 

134 

75

409 

244 

176 

87 

61

39 

37 

34 

32 

28

42 

72 

25 

15 

26

44 

26 

26 

31

7

Suspended sedim

Concentration 

of sample 

(ppm)

1,260 

5,540 

8,320 

12,900 

2,110

2,680 

4,420 

13,600 

13,600 

6,350

9,940 

8,280 

21, 800 

6,780 

1,260

1,810 

2,840 

5,920 

1,700 

8,490

18,800 

15,800 

2,760 

2,560 

2,770

3,170 

8,820 

8,820 

7,290 

5.620

Concentration 

of suspension 

analyzed 

(ppm)

3,270 

4,770 

7,120 

10,400 

4,520

2,310 

3,790 

3,340 

3,040 

5,610

4,360 

3,660 

4,210 

3,150 

2,890

1,460 

2,250 

2,240 

2,540 

7,610

8,860 

7,710 

2,180 

2,010 

2,200

2,680 

2,370 

7,010 

6,500 

4.480

Percent finer t

0.002

61

56 

2

69 

69 

59

59 

67 

4

0.004

76 

83 

68 

80 

72

72 

52 

71 

4 

81

62 

60 

57 

74 

69

88 

92 

93 

87 

77

81 

82 

85 

93 

76

79 

89 

7 

78 

54

0.008

82

88 

11

96 

97 

90

91 

98 

87

0.016

90 

97 

94 

98 

91

91 

90 

99

99

88 

86 

87 

95 

91

100 

100 

100 

99 

98

100 

99 

98 

98 

97

99 

98 

99 

99 

86

0.0
WHITE RIVER BASIN Continued 

WHITE RIVER NEAR OGLALA, S. DAK. Continued

Particle-size analyses of suspended sediment, April to September 1950 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, In distilled water; C, chemically dispersed; M, mechanically d

Date of collection

July 24, 1950 ............

July 25. .................

Aug 24

Sept. 19. ................

Sept. 19 ................

Sept. 20 ................

Sept. 21 ................

Sept. 23 ................

Sept. 25 ................

Sept. 30. ................

Time

7:00 p.m. 

6:30 p. m. 

6:30 p.m. 

6:30 p.m. 

8:00 a. m.

9:30 a. m. 

8:00 a. m. 

4:00 p. m. 

6:00 p. m. 

6:30 a. m.

7:00 p.m. 

5:00 p. m. 

8:00 a. m. 

6:30 a. m. 

8:00 a. m.

7:30 a. m. 

12:45 p. m. 

12:45 p. m. 

10:00 a. m. 

10:00 a. m.

11:00 a. m. 

5:30 p. m. 

6:45 a.m. 

5:20 p. m. 

6:00 a. m.

6:00 p. m. 

2:30 p. m.

Discharge 

(secondfeet)

89 

47 

47 

27 

18

11

44 

6 

10 

30

121 

77 

47 

25 

17

19 

52 

52 

94 

94

96 

148 

104 

68 

42

19 

34

Suspended sedim

Concentration 

of sample 

(ppm)

6,830 

18, 100 

18,100 

3,640 

938

7,140 

2,440

558 

2,040 

2,920

10, 600 

2,320 

10, 500 

30, 200 

22,600

19,400 

10, 300 

10, 300 

10,400 

10,400

7,530 

11,600 

14,400 

8,300 

7,460

3,580 

2,320

Concentration 

of suspension 

analysed 

(ppm)

5,570 

14,600 

5,110 

2,730 

660

5,Mft MM>

414

1,380 

2,380

4,690 

1,840 

4,080 

6,770 

9,450

8,730 

5,190 

5,220 

5,910 

5,790

3,020 

5,250 

6,470 

3,550 

3,340

3,000 

1,990

Percent finer th

0.002

1 59'

73

69 

81 

71 

62

60

57

0 

59 

49

73 

59

0.004

55 

1 

79 

86 

86

82 

80 

9T 

80 

77

66 

70 

78 

77 

92

90 

1 

70 

58 

1

57 

64 

84 

84 

82

83 

80

0.008

68 

95

96

90

97 

3St 

92

84 

93

8 

79 

72 

3

94 

90

0.01ft

86 

9ft 

108 

100 

98

99 

96

m

99 

99

90 

96 

100 

99 

100

98 

90 

87 

91

85 

90 

100 

99 

97

97 

94

0.03

1

1

1
WHITE RIVER BASIN Continued 

WHITE RIVER NEAR KADOKA, S. DAK.

LOCATION. At gaging station at bridge on State Highway 73, 5 miles downstream from Cottonwood Cree

miles upstream from Pass Creek. 

DRAINAGE AREA. 5,000 square miles. 

RECORDS AVAILABLE. Chemical analyses: March 1949 to September 1950.

Water temperatures: April 1949 to September 1950.

Sediment records: April 1949 to September 1950. 

EXTREMES, 1949-50. Dissolved solids: Maximum, 1,600 ppm Jan. 1-31; minimum, 278 ppm Mar. 24-27.

Hardness: Maximum, 464 ppm Jan. 1-31; minimum, 13 ppm Sept. 21-23, 24-30.

Specific conductance: Maximum daily, 2,880 micromhos Feb. 5; minimum daily, 344 micromhos Mar. 24

Water temperatures: Maximum, 73"F June 23; minimum, freezing point on many days during November t

Sediment concentrations: Maximum daily, 66,600 ppm Sept. 21; minimum daily, no flow Jan. 4-8, 13-

Sediment loads: Maximum daily, 531,000 tons May 9; minimum daily, 0 tons Jan. 4-8, 13-19. 

EXTREMES, March 1949 to September 1950. Dissolved solids: Maximum, 1,600 ppm Jan. 1-31, 1950; minim

Hardness: Maximum, 464 ppm Jan. 1-31, 1950; minimum, 13 ppm Sept. 21-23, 24-30, 1950.

Specific conductance: Maximum daily, 2,880 micromhos Feb. 5, 1950; minimum daily, 333 micromhos M

Water temperatures (April 1949 to September 1950): Maximum, 84°F Aug. 11, 1949; minimum, freezing 

Sediment concentrations (April 1949 to September 1950): Maximum daily, 66,600 ppm Sept. 21, 1950; 

Sediment loads (April 1949 to SeptemberH950) : Maximum daily, 531,000 tons May 9, 1950; minimum d

REMARKS. Daily samples for chemical analysis composited by discharge. Records of specific conducta

Lincoln, Nebr. Records of discharge for water year October 1949 to September 1950 given in Water

Chemical analyses, In parts per million, water year October 1949 to Sept

Date of collection

Oct. 1-9, 1949 ........

Feb. 18-28............

Aor. 5-19. ............

Mean 

discharge 

(secondfeet)

35 

1,290 

68 

28 

33 

20

4.6 

23 

20 

154

353 

2,700 

1,140 

422

952

255

PH

8.1 

8.0 

7.9 

7.9 

8.3 

7.9

7.9 

7.9 

7.8 

8.0

7.7 

8.0 

8.3 

7.9

8.1 

7.9

Specific 

conductance 

(micromhos at 

25° C )

920 

548 

622 

935 

830 

1,700

2,050 

1,200 

1,140 

695

493 

398 

364 

489

455 

507

Silica 

(SiO,)

33

40 

36 

54 

85

102 

60 

43 

45

35 

40 

30 

38

42

41

Iron 

(Fe)

0.02

.10' 

.04 

.04 

.04

.10 

.04 

.04 

.04

.04 

.10 

.30 

.06

.06 

.02

Calcium 

(Ca)

29 

16 

19 

59 

62 

132

138 

71 

46 

34

29 

19 

13 

21

16 

25

Magnesinm 

(Mg)

1.0 

.5 

1.5 

6.7 

11 

26

29 

11 

6.5 

3.0

2.6 

5.0 

.5 

.9

.5 

1.9

So- 

(Na?

176 

121 

130 

1C 

124 

272

364 

214 

218 

135

84 

68 

76 

94

92 

91

Potassium 

<K)

5.9 

6.9 

7.6 

1 

8.0 

16

21 

9.2 

5.9 

6.4

4.2 

5.2 

4.1 

6.0

5.4 

5.8

Carbonate 

(CO,)

0 

0 

0 

0 

12 

0

0 

0 

0 

0

0 

0 

4

0

0 

0

Bicarbonate 

(HCO,)

260 

259 

280 

292 

298 

758

974 

560 

388 

346

232 

202 

132 

241

' 239 

239

Sulfate 

(SO.)

233 

118 

103 

253 

188 

383

435 

210 

270 

97

71 

42 

il 

51

38 

57

Chloride 

(Cl)

9.0 

3.3 

7.0 

13 

11 

25

29 

15 

16 

8.0

6.0 

2.0 

3.0 

4.0

4.0 

5.0
WHITE RIVER BASIN Continued 

WHITE RIVER NEAR KADOKA, S. DAK.--Continued 

Chemical analyses, in parts per million, water October 1949 to September 195

Date of collection

May 10-14

Sept. 24-30 ...........

Weighted average ....

Mean 

discharge 

(secondfeet)

105 

105

146 

1,500 

4,400 

1,210 

90

364 

52 

235 

81

22

282 

181 

832 

87

211 

51 

214 

1,310 

166

219

PH

8.0 

7.8

7.9 

8.1 

8.1 

8.1 

8.0

8.0 

8.0 

8.0 

8.2

8.4 

8.1 

8.2 

7.9 

8.2

8.2 

8.1 

8.0 

8.4

8.5

--

Specific 

conductance 

(micromhos at 

25" C )

654 

560

606 

488 

476 

565 

751

747 

698 

562 

590

686 

637 

581 

519 

488

558 

769 

531 

484 

650

546

Silica 

(310,)

55 

36

46 

40 

34 

40 

42

46 

46 

42 

46

50 

36 

46 

48 

45

45 

43 

41 

41 

44

41

Iron 

(Fe)

0.02 

.04

.02 

.40 

.40 

.20 

.06

.16 

.10 

.40 

.40

.06 

.06 

.04 

.04 

.04

.04 

.04 

.04 

.04 

.04

0.16

Calcium 

(Ca)

45 

36

34 

10 

13 

18 

38

24 

15 

7.0 

8.0

10 

11 

8.0 

8.0 

8.0

8.0 

15 

3.0 

3.0 

4.0

18

Magnesium 

(Mg)

4.1 

1.4

3.6 

.6 

.5 

.1 

5.2

1.2 

.9 

.7 

1.3

.1 

.3 

.7 

.7 

.4

.2 

.6 

1.6 

1.3 

.9

1.7

Sodiuxn 

(Na)

101 

94

101 

104 

103 

105 

127

141 

139 

127 

125

144 

138 

122 

114 

100

121 

157 

117 

108 

123

108

Potassium 

(K)

5.7 

7.0

6.3 

5.5 

5.3 

5.4 

7.7

8.2 

7.2 

5.9 

6.4

5.9 

5.1 

4.3 

5.2 

6.0

5.9 

6.2 

5.1 

4.7 

5.6

5.7

Carbonate 

(CQ|)

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

7 

0 

0 

0 

0

0 

0 

0 

8 

7

--

Bicarbonate 

(HCO,)

283 

254

269 

237 

234 

208 

249

288 

259 

277 

244

235 

292 

262 

280 

230

271 

253 

262 

238 

229

b251

SulJfate

(so.)

95 

71

81 

55 

52 

96 

168

118 

118 

58 

89

127 

84 

77 

46 

56

61 

156 

54 

44 

72

76

Chloride 

(Cl)

13 

12

6.0 

4.0 

9.0 

8.0 

8.0

13 

8.0

5.5 

5.5

6.0 

7.4 

6.0 

3.0 

4.0

4.0 

7.5 

4.0 

5.0 

4.5

5.7

a Weighted mean for day.

b Includes carbonate as bicarbonate.
WHITE RIVER BASIN 265

WHITE RIVER BASIN Continued 

WHITE RIVER NEAR KADOKA, S. DAg. Continued

Temperature (°F) of water, water year October 1949 to September 1950 

/Once-daily temperature measurement at approximately 8 a. m. , except Dec. 18 to Apr. 21 readings at about 4 p. mj

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

Average

Oct.

40

43

40

37

42

55

53

46

47

48

46

44

46

41

45

46

43

45

41

37

36

42

43

41

45

40

43

43

46

43

37

43

Nov.

44

38

37

40

43

44

40

41

42

42

44

40

40

40

32

..

37

35

36

37

33

36

30

33

34

35

34

33

38

Dec.

..

33

32

.-

34

32

33

33

33

33

33

34

34

34

34

33

33

35

33

34

33

34

33

34

33

--

Jan.

-.

33

33

33

33

34

34

34

33

33

33

34

33

35

37

32

38

37

36

36

35

38

38

34

37

36

38

35

Feb.

37

36

38

37

33

35

34

35

34

35

33

33

32

33

34

35

33

33

34

~

34

34

33

33

34

35

34

33

..

--

34

Mar.

..

33

34

33

33

34

32

32

33

34

33

32

_

32

32

34

32

32

32

33

34

32

33

32

32

32

33

33

33

33

Apr.

38

40

33

33

34

50

32

35

. 

49

51

61

58

--

_

..

_.

--

May

..

44

44

43

40

42

44

53

._

67

--

60

57

62

54

52

69

71

69

59

65

53

60

63

60

59

54

June

58

55

54

54

58

54

50

58

60

63

68

63

68

63

63

58

58

61

63

63

63

73

70

70

67

68

71

72

62

July

70

71

70

68

71

68

69

67

72

68

71

65

68

69

68

67

68

68

67

68

_

67

69

68

62

65

67

68

68

68

62

68

Aug.

66

62

64

67

65

63

64

71

69

67

66

66

68

67

70

69

66

68

65

67

68

67

64

70

59

62

67

67

68

68

70

66

Sept.

69

71

68

69

68

67

63

64

59

56

50

51

52

53

55

57

59

53

52

55

58

61

63

60

58

56

52

55

54

--

59
266 MISSOURI RIVER BASIN

WHITE RIVER BASIN Continued

WHITE RIVER NEAR KADOKA, S. DAK.--Continued

Suspended sediment, water year October 1949 to September 1950

Day

9

15 ......

18

21

93

25

Oft

27

QQ

Total2

g

g

12

1 g

19

20

21 

22------ 

23 

24 

25 ------ 

28 ------ 

27 

28 ------ 

29 ------ 

30 ----- - 

31 

TotalOctober

Mean

charge 

(secondfeet)

16 

18 

19 

10 

9

10 

10 

88 

131 

2,010 

1,340 

531 

204 

108 

68 

49 

44 

36 

53 

142

128 

64

56 

56 

55

45 

41 

39 

36 

34 

31

5,481

Suspended sediment

Mean 

concentration 

(ppm)

15,000 

7,770

555

I 361

23,700 

17, 100 

60,800 

58,200 

39,400 

26, 300 

18,800 

14,200 

11, 100 

9,600 

8,900 

10,400 

12,800

8,800 

4,290 

2,620 

1,130 

820

2,200 

3,130 

5,410 

5,590 

3,950 

2,720

Tons 

per 

day

si, 220 

s327 

28

10

s5,680 

6,050 

s 379, 000

218,000 

s 62, 500 

14,500 

5,480 

2,610

1,470 

1,140 

865 

si, 710 

4,910

3,040 

741 

396 

171 

122

267 

346 

570 

543 

363 

228

712,300

January

10 

5 

2 

0 

0

0 

0 

0 

1 

10

20 

10 

0 

0 

0 

0 

0 

0 

0

1

3 

4 

6 

5 

5 

7 

13 

10 

8 

10 

13

143

> ::

1 167

198 

172

e2

0 

0

0 

0 

0

4

0 

0 

C 

0 

0 

0 

0

2

5

61

November

Mean

charge 

(secondfeet)

28 

28 

26 

24 

24

24 

24 

26 

28 

28 

28 

28 

27 

27 

37 

44 

42 

47 

47 

44

34 

31 

26 

33 

33

39 

42 

36 

33 

33

971

Suspended sediment

Mean 

concentration 

(ppm)

1,540 

1,160 

422

158

216

310

560 

420

1,050 

750

> 187

210 

320

[ 226

Tons 

per 

day

116 

88 

30

10

16

36

71 

50

96 

63

15

22 

36

21

970

February

14 

16 

14 

15 

12

20 

25 

60 

35 

50

25 

20 

10 

8 

12

25 

20 

85 

260 

150

190 

210 

240 

170 

130 

85 

85 

85

2,071

316 

350

2,080 

490 

120 

380 

640

470 

420 

1,150 

1,500 

1,400

1,300 

1,820 

4,600 

3,400

> ::

12

19 

ellO 

e480 

e650 

e750

140 

26 

3 

8 

21 

32 

23 

264 

1,050 

568

e700 

737 

1,180 

2,110 

1,190

e320

11,080

Dece liber

Mean

charge 

(second - 

feet)

28 

34 

34 

40 

60

40 

16 

9 

15 

13

10 

7 

4 

10 

15 

20 

15 

15 

20 

15

10 

10 

12 

14 

15 

20 

15 

15 

20 

30 

25

606

Suspended sediment

M*«n 

cor cent ration 

(ppm)

| 127 

65

67

70 

87

137 

214 

273 

326 

392

164

I 181 

t 210 

[ 130

Tons 

per 

day

11

7 

e!5

7 

e3 

e2 

3 

3

4 

4 

3 

9 

16

8

6 

9 

8

232

Ma-ch

110 

170 

250 

350 

400

450 

350 

200 

180 

180

170 

150 

200 

250 

280

300 

500 

700 

650 

625

600 

700 

2,700 

2,000 

1,250 

763 

548 

345 

231 

325 

788

16,715

1,100 

1,300 

3,800 

10,500

9,800 

4,850 

1,490 

1,750 

1,600

1,480 

1,550

420 

500

610 

4,200 

5,150

6,000

4,400 

4,500 

15, 500 

2?, 300 

IT, 300 

1C, 400 

7,600 

5,600 

5,300 

11,600 

19,900

e380 

505 

878 

3,590 

11,300

11,900 

4,580 

805 

850 

778

679 

628 

eSOO 

284 

378

494 

5,670 

9,730 

e8,500 

10, 100

7,130 

8,500 

113,000 

126,000 

58,400 

21,400 

11,200 

5,220 

3,310 

10,200 

29,600

466,500

e Estimated.

s Computed by subdividing day.
WHITE RIVER BASIN

WHITE RIVER BASIN Continued

WHITE RIVER NEAR KADOKA, S. DAK.--Continued

267

Suspended sediment, water year October 1949 to September 1950 Continued

Day

n

99

97

no

«A

31 

Total10 

11 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 ----- 

25 -----

26 ----- 

27 

28 ----- 

29 ----- 

30 ----- 

31 -----

Total

April

Mean

charge 

(secondfeet)

1,020 

1,050 

980 

757 

443

288 

306 

330 

235 

183

* 302 

492 

274 

235 

176 

148 

145 

151 

123 

105

101 

96 

94 

89 

81

76 

72 

76 

96 

192

8,716

Suspended sediment

Mean 

concentration 

(ppm)

21,700 

21,600 

16,600 

7,800

2,500

4,000 

3,200 

2,900

7,930 

8,100 

8,080 

6,720

4,500

2,910 

2,870 

1,900

1,300 

1,300 

4,250 

5,190 

4,350 

1,800 

1,000 

780 

2,540 

3,400

Tons 

per 

day

59,800 

61,200 

43,900 

15,900 

63,600

1,940 

e2,700 

3,560 

2,030 

1,430

e3,500 

10,500 

5,990 

5,130 

3,190

1,800 

e 1, 200 

1,190 

953 

539

355 

337 

1,080 

1,250 

951

369 

194 

160 

658 

s2,220

237,600

July

33 

30 

135 

166 

71

48 

51 

51 

26 

17 

13 

10 

15 

13 

8

75 

243 

306 

250 

572 

212 

108 

222 

148 

57

36 

43 

166 

119 

49 

73

3,366

16,900 

11,100 

11,400 

29,800 

16,800

10,700 

12,200 

15, 900 

9,600 

3,380 

960 

1,020 

630 

410 

380

23,500 

41,500 

47,200 

40,300 

51, 100 

27,400 

17,800 

22,200 

25,600 

17,800

12,400 

11,000 

20,300 

27,200 

17,800 

16, 500

--

1,510 

899 

86,480 

814,000 

3,220

1,390 

1,680 

2,190 

674 

155 

34 

28 

26 

14 

8

s9,920 

28,200 

40,400 

s 28, 900 

883,700 

15,700 

5,190 

815,400 

10,200 

2,740

1,210 

1,280 

89,380 

8,740 

2,350 

s3,380

299,000

Total discharge for year (second-foot-day 

Total lond for year (tons) ...............

May

Mean

charge 

(second - 

feet)

636 

1,610 

1,420 

954 

695

1,940 

1,530 

2,330 

4,400 

2,530

1,580 

900 

579 

444 

318

246 

195 

163 

142 

117

111 

98 

90 

85 

93

98 

122 

98 

78 

69 

61

23,732

Suspended sediment

Mean 

concentration 

(ppm)

15,400 

37, 500 

42, 500 

26,200

34,400 

28,300 

35,600 

42,800 

32,000

21,300 

12,500 

8,000 

7,000 

4,890 

3,480 

3,460 

5,550 

4,490 

2,640

1,520 

1,040 

798 

776 

600

708 

1,020 

1,190 

2,950 

3,000 

1,220

-

Tons 

per 

day

s 27, 300 

8173,000 

s 177, 000 

67, 500 

e41,000

8198,000 

8126,000 

8244,000 

8531,000 

219,000

s 95, 500 

30,400 

12,500 

8,390 

4,200

2,310 

1,820 

2,440 

1,720 

834

456 

275 

194 

178 

151

187 

336 

315 

621 

559 

201

1,967, 000

August

30 

19 

18 

19 

455

202 

189 

103 

39 

401 

1,090 

346 

1,210 

1,020 

493

261 

125 

69 

54 

157 

78 

45 

31 

22 

26

265 

326 

411 

229 

228 

83

8,044

13,400 

7,100 

4,400 

1,500 

43,600

26,700 

28,900 

27,700 

25,300 

45,800 

54,000 

24,000 

41,800 

43,900 

17,800

11,700 

7,900 

6,700 

8,600

13,100 

13,000 

11,800 

12,000 

13,300

28,900 

30,800 

33,500 

19,800 

25,200 

13,600

1,090 

364 

214 

77 

863,200

14,600 

14,700 

7,700 

2,660 

877,000 

s 180, 000 

22,400 

s 176, 000 

s 133, 000 

23,700

8,240 

2,670 

1,250 

1,250 

e7,000 

2,760 

1,580 

988 

713 

si, 010

821,300 

833,400 

38,600 

12, 200 

517,200 

3,050

869,900

June

Mean

charge 

(secondfeet)

55 

53 

59 

57 

59

55 

51 

33 

29 

27

26 

28 

28 

33 

308 

609 

176 

90 

67 

55

53 

76 

83 

88 

71

39 

37 

27 

23 

23

2,418

Suspended sedi-nent

Mean 

concentration 

(ppm)

740 

500 

380 

345 

360 

410 

462 

462 

300 

210

190 

195 

235 

420 

15,900

33,500 

22,700 

13,800 

11, 100 

7,400

5,000 

5,800 

4,600 

6,500 

2,600

1,500 

1,000 

430 

450

Tons 

pir 

d-»

110 

72 

61 

53

57

61 

64 

41 

23 

15

13 

15 

18 

847 

815,600

s 53, 200 

10,800 

3,350 

2,010 

1,100

716 

1,190 

1,030 

1,540 

498

158 

100 

31 

28 

e65

92,070

September

63 

81 

46 

31 

21

18 

19 

13 

11 

77 

226 

272 

151 

76 

69

174 

434 

206 

136 

403 

1,710 

1,580 

645 

306 

218 

154 

93 

69 

176 

148

' 7,628

10,000 

9,600 

10,000 

5,100 

2,990

1,140 

260 

190 

180 

19,200 

41,600 

41,100 

33,600 

23,500 

19, 800

21,100 

34,400 

22,200 

13,000 

34,200 

66,600 

59,700 

32,200 

21,300 

16,700

13,800 

9,100 

7,200

13,700

s) ....................................................

1,700 

2,100 

1,240 

427 

170

55 

13 

7 

5 

s8,640 

26,300 

31,300 

14,200 

4,820 

s3,740

s 10,400 

41,800 

12,500 

4,770 

s 57, 700 

8331,000 

8277,000 

58,200 

17,600 

9,830

5,740 

2,290 

1,340 

e7,100 

5,470

937,400

79, 891 

5,594,000

e Estimated.

s Computed by subdividing day.
WHITE RIVER BASIN Continued 

WHITE RIVER NEAR KADOKA, S. DAK. Continu

Particle-size analyses of suspended sediment, water year October 194

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 

W, In distilled water; C, chemically dispersed; M, mechanical

Date of collection

Maw 17

a Mean daily discharge.

Time

4 :20 p. m. 

12:40 p.m. 

9:30 a. m. 

1:35 p.m. 

4:40 p.m.

5:20 p. m. 

5:30 p. m. 

6:50 a. m. 

6:50 a. m. 

5:30 p. m.

6:30 a. m. 

6:20 p. m. 

7:00 a. m. 

6:00 p. m. 

5:30 p.m.

5:50 p. m. 

5:50 p. m. 

7:00 a. m. 

6:45 a.m. 

12:50 p.m.

5:30 p. m. 

7:10a.m. 

5:30 p. m. 

8:00 a.m. 

5:30 n. «t.

6:00 p.m. 

6:00 p. m. 

8:00 a.m. 

7:30 a. m. 

7:30 a. m.

Discharge 

(secondfeet)

10 

3,280 

173 

28 

a 170

1,610 

912 

330 

330 

235

525 

1,130 

1,140 

2,860 

1,080

4,700 

4,700 

2,400 

198 

189

176 

160 

295 

908 

3«

53 

53 

78 

34 

34

Suspended sed

Concentration 

of sample 

(ppm)

721 

67,800 

15, 500 

1,860 

5,220

21,900 

13,400 

4,130 

4,130 

8,020

15,000 

37,200 

28,900 

44,900 

23,600

45,300 

45,300 

34,000 

2,480 

2,210

5,190 

5,190 

24,700 

30,400 

^7,400

4,900 

4,800 

9,600 

17, 800 

17,800

Concentration 

of suspension 

analyzed 

(ppm)

1,110 

1,730 

2,590 

1,470 

4,000

15,800 

10, 500 

4,460 

1,490 

6,030

11,400 

14,100 

5,510 

4,080 

3,940

3,640 

' 980 

3,140 

1,620 

1,640

4,000 

3,850 

8,370 

5,960 

7,060

2,650 

2,470 

3,280 

3,280 

3,420

Percent fine

0.002

36 

82

55 

35

27

1

93 

24

0.004

2 

48 

92

89

46 

47 

2 

69 

86

60 

45 

47 

37 

54

33 

5 

44 

84 

89

91 

93 

78 

77 

n

98 

78 

83 

93

57

0.008

7 

58 

96 

3

67 

82

58

40 

11

98 

99

0.016

71 

98

96

66 

67 

92 

90 

96

84 

73 

69 

53 

73

52 

51 

62 

94 

96

99 

98 

93 

98 

9S

98 

100 

97 

98 

95
Aue. 27 ................. 6:30 D.m.

222

229

229

128

240

53

53

142

218

176

176

1,320

885

246

103

568

10,800

10,600

10,600

24,600

29, 700

17, 000

26,600

27,000

21,000

11,400

44.900

4,080

3,790

4,090

8,310

3,090

4,620

8,180

3,730

4 520

6,120

6.700

454

65

95

6696_

97

58

576

91 

100

77 

83

78 

100

79

88

99

51

82

83

30

49

54

13

86

36

60

58

74

90

99

74

55

75

56"

90

91~_

93

94

72

72

-.

71

70

..

--

..

100

89

89

86

99

94 

94

95

98

99

100

82

98

98

97

78

85

85

96

59

83

84

91

87

99

95

81
WHITE RIVER BASIN Continued 

WHITE RIVER NEAR KADOKA, S. DAK. Continue

Particle-size analyses of suspended sediment, water year October 1949 to Se

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanicall

Date of collection

Sept. 28 .................

Time

2:15 p.m. 

2:15 p.m. 

6:30 p. m. 

8:00 a.m. 

7:30 a. m.

8:00 a. m. 

3:45 p.m. 

7:00 a.m. 

7:00 a. m. 

4:15 p.m. 

4:15 p.m.

4 :00 p. m. 

4:00 p.m. 

5:40 p. m. 

7:30 p. m. 

4:00 p. m. 

7:00 a.m.

Discharge 

(secondfeet)

407 

407 

380 

232 

93

85 

21 

229 

306 

179 

179

2,210 

2,210 

2,340 

2,600 

1,320 

69

Suspended sed

Concentration 

of sample 

(ppm)

34,400 

34,400 

21,700 

22,200 

14,700

7,960 

2,770 

39,200 

42, 200 

19,000 

19,000

74,400 

74,400 

70, 600 

71,200 

54,900 

7,880

Concentration 

of suspension 

analyzed 

(ppm)

7,640 

7,670 

7,530 

7,530 

5,350

5,480 

3,280 

11,700 

6,830 

11,000 

10,800

11,400 

11,600 

5,930 

6,340 

8,470 

4,850

Percent finer 

0.002

60 

54

77 

64

33 

24

45

0.004

74 

73 

83 

85 

98

97 

98 

76 

79 

88 

88

40 

37 

45 

46 

56 

98

0.008

86 

86

95 

96

48 

46

66

0.016

94 

94 

97 

99 

100

100 

98 

95 

94 

97 

98

61 

60 

68 

66 

77 

99

0
WHITE RIVER BASIN Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN WHITE RIVER BASIN IN 

Chemical analyses, in parts per million, water ;

Date of collection

Discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodlum 

(Na)

Potassium 

(K)

Carbonate 

(CO,)

rear October 1949 to Se

Bicarbonate 

(HCO,)

Sulfate 

(S0«)

Chloride 

(Cl)

WHITE RIVER NEAR OACOMA

Sept. 28 ............

355

355

491

7.8

7.5

8.4

745

654

45

36

0.02

.10

.02

46

54

17

26

.6

236

135

0

14

222

226

208

440

195

238

115

62

9.

17
PONCA CREEK BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN PONCA CREEK BASIN I

Chemical analyses, in parts per million, water year October 1949 to Se

Date of collection

Discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodimm 

(Na)

Potassium 

(K)

Carbonate 

(CO,)

Bicarbonate 

(HCO,)

Sulfate 

(S04)

Chlo

ride 

(Cl)

PONCA CREEK AT ANOKA

Mar. 28, 1950 ..... 

May 8 .............

1,640 

209

7.2 

8.0

161

602

20 

16

0.02

.16 

.02

183

23 

76

39

3.4 

19

SI

4.4 

33

0

0 

0

345

66 

-230

405

19 

127

13

1.

9.

a Mean daily discharge.

Periodic determinations of suspended-sediment discharge, water year October 19

Date

Instantaneous 

water discharge 

(second-feet)

Suspend

Mean 

concentration 

(ppra)

PONCA CREEK AT ANOKA

Sept. 27 ..............

25

4.8

107

7.7

28

1,200

41
PONCA CREEK BASIN- -Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN PONCA CREEK BASIN IN N

Particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection Time

Discharge 

(secondfeet)

Suspended sedi

Concentration 

of sample 

(PP»)

Concentration 

of suspension 

analyzed 

(ppm)

Percent finer 

0.002 0.004 0.008 0.016 0

PONCA CREEK AT ANOKA

Sept. 22 .............. 10:00 a.m.

392

220

8.4

107

2,030

1,270

1,800

125

1,200

6,040

4,490

1,650

811

3,060

10

57

--

17

49

61

36

65

_

_

73

40

_

68

78

49

82
274 MISSOURI RIVER BASIN

NIOBRARA RIVER BASIN 

NIOBRARA RIVER NEAR GORDON, NEBR.

LOCATION. At bridge on State Highway 27, just upstream from gaging station, about 4 miles

downstream from Rush Creek, and 11 miles south of Gordon, Sheridan Courty. 

DRAINAGE AREA. 2,595 square miles.

RECORDS AVAILABLE. Sediment records: October 1947 to September 1950. 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 4,700 ppm Aug. 26; minimum

daily, 10 ppm Jan. 21, Feb. 3.

Sediment loads: Maximum daily, 12,700 tons Aug. 26; minimum daily 2 tens Feb. 3. 

EXTREMES, 1947-50. Sediment concentrations: Maximum daily, 5,360 ppm Ma". 15, 1948;

minimum daily, not determined. 

Sediment loads: Maximum daily, 22,900 tons June 17, 1948; minimum dail', 2 tons

Feb. 3, 1950.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in 

Water-Supply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

13

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 ......

TotalOctober

Mean

discharge 

(secondfeet)

80 

82 

82 

88 

96

105 

114 

111 

114 

149

131 

118 

105 

105 

102

102 

99 

102 

108 

114

111 

105 

102 

94 

94

96 

96 

105 

105 

102 

105

3,222

Suspended sediment

Mean 

concentration 

(ppm)

200 

250 

250 

150 

190

240 

270 

230 

220 

1,200

470 

410 

340 

290 

300

280 

380 

480 

460 

320

170 

250 

380 

290 

220

510 

330 

340 

500 

410 

330

-

Tons 

per 

day

43

55 

55 

36 

49

68 

83 

69 

98 

480

170 

130 

96 

82 

83

77 

100 

130 

130 

98

51 

71 

100 

74 

56

130 

86 

96 

140 

110 

94

3,110

November

Mean

charge 

(secondfeet)

105 

102 

105 

108 

108

111 

114 

118 

111 

111

118 

125 

121 

118 

111

118 

114 

114 

111 

110

110 

110 

110 

110 

110

110 

110 

110 

110 

110

3,353

Suspended sediment

Mean 

concentration 

(ppm)

200 

290 

460 

460 

450

550 

350 

500 

580 

410

490 

380 

240 

330 

460

620 

480 

380 

300 

350

340 

410 

500 

410 

290

530 

600 

460 

330 

360

-

Tuns 

per 

day

57 

80 

130 

130 

130

160 

110 

160 

170 

120

160 

130 

78 

110 

140

200 

150 

120 

90 

100

100 

120 

150 

120 

86

160 

180 

140 

98 

110

3,790

December

Mean

charge 

(secondfeet)

110 

110 

110 

.00 

90

95 

90 

90 

88 

96

85 

85 

90 

80 

80

80 

90 

95 

95 

85

80 

90 

100 

110 

110

100 

100 

100 

110 

110 

90

2,944

Su^nended sediment

»*»«i 

coicentrition 

(r«m)

410 

290 

300 

370 

240

330 

110 

940 

650 

310

150 

80 

70 

50 

30

40 

50 

60 

50 

50

50 

50 

40 

50 

70

40 

30 

20 

20 

50 

50

~

Tons 

per 

day

120 

86 

89 

100 

58

85 

27 

230 

150 

80

34 

18 

17 

11 

6

9 

12 

15 

13 

11

11 

12 

11 

15 

21

11 

8 

5 

6 

15 

12

1,300
NIOBRARA RIVER BASIN 

NIOBRARA RIVER BASIN Continued 

NIOBRARA RIVER NEAR GORDON, NEBR.--Continued 

Suspended sediment, water year October 1949 to September 1950--Continued

275

Day

g

21

99

24

25 

27

9ft

29

Total2

Q

13

9A

21 

22------ 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalJanuary

Mean

charge 

(secondfeet)

85 

80 

70 

70 

80

90 

90 

90 

90 

90

90 

90 

90 

85 

80

80 

85 

90 

100 

100

110 

110 

120 

120 

95

75 

75 

100 

95 

85 

75

2,785

Suspended sediment

Mean 

concentration 

(ppm)

40 

80 

50 

80 

100

120 

100 

60 

20 

30

40 

30 

40 

40 

50

40 

50 

40 

30 

20

10 

20 

20 

30 

40

20 

40 

20 

20 

20 

20

~

Tons 

per 

day

9 

17 

9 

15 

22

29 

24 

15 

5 

7

10 

7 

10 

9 

11

9 

11 

10 

8

5

3 

6 

6 

10 

10 

4 

8 

5 

5 

5 

4

308

April

149 

153 

135 

135 

161 

135 

131 

131 

125 

145

145 

121 

128 

118 

128

172 

188 

176 

184 

145 

164 

176 

180 

180 

188

197 

210 

233 

210 

197

4,820

630 

620 

490 

410 

380

380 

360 

340 

410 

520

580 

500 

410 

340 

600

410 

580 

870 

600 

380 

200 

220 

260 

400 

300

220 

390 

500 

520

--

250 

260 

180 

150 

170

140 

130 

120 

140 

200 

230 

160 

140 

110 

210

190 

290 

410 

270 

150 

89 

100 

130 

190 

150

120 

220 

310 

290 

e340

5,840

February

Mean

charge 

(secondfeet)

80 

80 

75 

80 

85

85 

90 

110 

120 

130

140 

160 

180 

200 

200

200 

190 

160 

180 

161

160 

160 

161 

161 

168

153 

149 

135

3,953

Suspended sediment

Mean 

concentration 

(ppm)

30 

20 

10 

30

50

20 

30 

30 

60 

50 

40 

70 

110 

90 

40

760 

180 

380 

800 

550

460 

530 

530 

520 

800 

800 

830 

890

Tons 

per 

day

6 

4 

2 

6 

11

5 

7 

9 

19 

18

15 

30 

53 

49 

22

410 

250 

160 

390 

240

200 

230 

230 

230 

360

330 

330 

320

3,940

May

172 

168 

164 

168

172

188 

188 

180 

184 

206

149 

135 

128 

145 

135

138 

131 

111 

108 

108 

108 

105 

99 

94 

111

121 

114 

114 

121 

102 

94

4,261

920 

880 

880 

580

940 

840 

900 

1,200 

1,500

1,400 

550 

400 

480 

270

380 

390 

370 

890 

410 

330 

820 

320 

270 

520

360 

290 

190 

230 

300 

330

~

e390 

420 

390 

400 

270 

480 

430 

440 

600 

830

560 

200 

140 

190 

98

140 

140 

110 

260 

120 

96 

230 

86 

69 

160

120 

89 

58 

75 

83 

84

7,760

March

Mean

charge 

(secondfeet)

125 

125 

125 

128 

145

125 

118 

114 

131 

118

75 

90 

120 

168 

118

128 

121 

145 

149 

141

125 

135 

118 

114 

135

138 

145 

153 

153

157 

157

4,039

Suspended sediment

Mean 

concentration 

(ppm)

590 

450 

820 

640 

950

510 

290 

310 

220 

890 

380 

240 

240 

380 

960

640 

900 

370 

270 

200

230 

1,300 

1,300 

670 

900

460 

650 

490 

930 

1,150 

570

Tons 

per 

day

200 

150 

280 

220 

370

170 

92 

95 

78 

280

77 

58 

78 

170 

310

220 

290 

140 

110 

76 

78 

470 

410 

210 

330

170 

250 

200 

380 

490 

240

6,690

June

91 

88 

85 

85 

85

80 

75 

72 

72 

75 

72 

68 

68 

80 

88

82 

82 

102 

121 

118 

108 

108 

108 

105 

96

85 

82

75 

77 

80

2,613

340 

250 

180 

280 

180

150 

160 

150 

100 

100 

80 

80 

200 

570 

320

310 

320 

1,600 

400 

290 

230 

270 

210 

180 

250

160 

140 

150 

110 

230

--

84 

59 

41 

64 

41

32 

32 

29 

19 

20

16 

15 

37 

120

76

69 

71 

440 

130 

92 

67 

79 

61 

51 

65

37 

31 

30 

23 

50

1,980
276 MISSOURI RIVER BASIN 

NIOBRARA RIVER BASIN Continued 

NIOBRARA RIVER NEAR GORDON, NEBR.--Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

12

9A

nn

no

29

31 -----

TotalJuly

Mean

charge 

(secondfeet)

77 

85 

88 

85 

85

85 

85 

85 

94 

91

88 

105 

91 

80 

77

80 

85 

88 

88 

82

80 

80 

96 

96 

121

131

111 

96 

99 

118 

108

2,860

Suspended sediment

Mean 

concentration 

(ppm)

270 

270 

170 

460 

320

200 

110 

170 

180 

230

360 

360 

200 

240 

270 

200 

220 

280 

270 

310

170 

50

900 

790

} ~

--

Tons 

per 

day

56 

62 

40 

110 

73

46 

25 

39 

46 

57 

86 

100 

49 

52 

56

43 

50 

67 

64 

69

37 

11 

e!40 

230 

e210 

280 

e 120

e70

2,500

Aueust

Mean

charge 

(secondfeet)

102 

94 

82 

80 

85

114 

135 

99 

85 

82

85 

91 

403 

172 

125

108 

105 

94 

105 

125

121 

114 

114 

114 

138

827 

210 

141 

131 

111 

111

4,503

Suspended sediment

Mean 

concentration 

(ppm)

150 

100 

90 

180

3,100 

3,500 

380 

200 

160 

180 

150

1,900 

840

380 

250 

240 

240 

240

470 

380 

220 

170

4,700 

1,600 

660 

390 

640 

360

--

Tons 

per 

day

eSO 

38 

22 

19 

41

si, 100 

1,300 

100 

46 

35 

41 

37 

e4,600 

880 

280

110 

71 

61 

68 

81

150 

120 

68 

52 

e550

s 12, 700 

910 

250 

140 

190 

110

24,220

Sect ember

Mean

charge 

(secondfeet)

105 

94 

80 

75 

72

70 

68 

70 

77 

99

105 

128 

131 

131 

168

153 

157 

135 

125 

128

138 

138 

135 

121 

111

108 

111 

114 

125 

128

3,400

Suspended sediment

Mean 

cincent'ltion 

(ppm)

270 

270 

240 

410 

180

110 

140 

210 

240 

510 

330 

310 

410 

410 

590

520 

470 

360 

220 

340

370 

450 

320 

390 

270

230 

280 

380 

390 

380

-

Tons 

per 

day

77 

69 

52 

83 

35

21 

26 

40 

50 

140 

94 

110 

150 

150 

270

210 

200 

130 

74 

120

140 

170 

120 

130 

81

67 

84 

120 

130 

130

3,270

Total discharge for year, (second-foot days) ..................................................... 42,753

Total load for year (tons) ..................................................................... 64,710

e Estimated.

s Computed by subdividing day.
NIOBRARA RIVER BASIN -Continued 

NIOBRARA RIVER NEAR GORDON, NEBR. Continu

Particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Oct. 28, 1949. .........

Nov. 17 ...............

Feb. 8, 1950 ..........

Apr. 7 ...............

Apr. 15 ...............

May 2 ................

May 18 ...............

Aug. 13 ..............

Aug. 26 ..............

Aug. 29 ..............

Sept. 13 ..............

Time

9:55 a.m. 

1:15 p.m. 

11:00 a.m. 

9:20 a. m. 

1:15 p. m.

10:10 a.m. 

2:30 p.m. 

1:55 p.m. 

10:15 a.m. 

12:10 p.m.

3:20 p. m. 

7:15 a.m. 

4:30 p.m. 

10:20 a. m. 

11:15 a. m. 

11:55 a. m.

Discharge 

(secondfeet)

108 

114 

108 

119 

138

125 

157 

114 

88 

94

105 

125 

396 

1,430 

131 

138

Suspended sedi

Concentration 

of sample 

(ppm)

346 

527 

551 

45 

330

575 

576 

366 

251 

143

4,270 

4,790 

3,700 

4,760 

511 

507

Concentration 

of suspension 

analyzed 

(ppm)

5,090 

3,010 

4,080 

3,190

Percent finer 

0.002 0.004

65 

30 

49 

46

0.008 0.016

80 

41 

62 

65

0
278 MISSOURI RIVER BASIN

NIOBRARA RIVER BASIN Continued 

NIOBRARA RIVER NEAR CODY, NEBR.

LOCATION. At county bridge, a quarter of a mile downstream from gaging s+ation, which 

is 3 miles upstream from Medicine Creek, 5 miles downstream from Bear Creek, and 10 

miles south of Cody, Cherry County. 

RECORDS AVAILABLE. Water temperatures: October 1948 to September 1950.

Sediment records: April 1948 to September 1950.

EXTREMES, 1949-50. Water temperatures: Maximum, 87'F June 24; minimum, freezing point 

on several days in December and January.

Sediment concentrations: Maximum daily, 6,780 ppm Aug. 27; minimum daily, not 

determined.

Sediment loads: Maximum daily, 23,700 tons Aug. 27; minimum daily, 140 tons Dec. 12. 

EXTREMES, 1948-50. Water temperatures: Maximum, 87°F June 24, 1950; minimum, freezing 

point on many days during winter months.

Sediment concentrations: Maximum daily, not determined; minimum daily, not determined. 

Sediment loads: Maximum daily, 58,000 tons June 18, 1948; minimum daily, not

determined.

REMARKS. Investigations indicate that practically all the total sediment load is 

transported in suspension at this contracted section of the river. Records of discharge for water year October 1949 to September 1950 given in Water-Supply Paper 1176.

Temperature (°F) of water, water year October 1949 to September 1950 

ffiice-daily temperature measurement usually between 4 p. m. and 7 p. mj

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

Average

Oct.

66

65

61

62

68

58

54

48

47

57

57

57

48

49

55

56

56

57

42

42

43

50

45

52

50

53

55

52

45

44

56

53

Nov.

50

47

51

52

51

50

57

46

50

50

50

47

49

46

46

40

44

40

52

41

39

41

42

41

46

47

49

49

44

44

47

Dec.

43

44

43

40

39

39

33

36

38

_

35

35

39

"

32

34

- 

33

--

34

34

34

35

35

36

--

Jan.

36

32

35

34

34

35

35

..

34

--

_

34

35

35

34

34

32

36

34

33

34

~

Feb.

33

33

36

34

36

37

35

36

36

33

33

33

33

34

36

38

35

38

38

34

33

35

33

36

35

46

42

39

_

_

36

Mar.

37

38

43

49

49

53

33

35

41

33

..

35

35

40

46

39

39

33

33

39

40

51

48

52

52

33

36

37

49

52

52

42

Apr.

55

47

38

43

53

53

47

39

44

37

54

42

54

58

58

66

67

54

49

62

63

71

69

53

50

51

59

41

46

57

--

53

May

60

64

50

45

44

61

41

54

63

65

66

62

74

70

69

70

74

68

69

63

73

77

77

59

57

55

64

68

70

64

64

63

June

72

66

69

72

78

74

79

70

71

74

79

80

82

83

84

69

67

65

78

81

81

81

80

87

73

75

77

75

79

82

76

July

72

79

79

70

79

79

82

81

82

80

80

70

51

74

79

72

78

70

76

65

80

80

79

67

79

75

80

84

80

75

74

76

Aug.

79

77

80

78

80

79

83

83

75

66

79

74

79

80

82

68

72

76

68

73

73

74

76

74

67

71

70

70

69

70

80

75

Sept.

80

80

75

77

74

72

78

74

73

56

60

57

55

59

57

57

60

71

69

69

59

69

68

72

68

68

69

62

56

58

67
KIOBRARA RIVER BASIN 

NIOBRARA RIVER BASIN Continued 

NIOBRARA RIVER NEAR CODY, NEBR.~Continued 

Suspended sediment, water year October 1949 to September 1950

279

Day

o

Ifl

21

9A

oc

no

Total2

10 

12

1 P.

on

21 ----- - 

22 

23 

24 

25 

26 ------ 

27 - 

28 

29 ------ 

30 

31 ------

TotalOctober

Mean

charge 

(secondfeet)

278 

268 

268 

268 

278

371 

308 

298 

298 

425 

392 

361 

345 

324 

308

278 

278 

283 

293 

298

293 

288 

283 

283 

283

293 

283 

283 

293 

298 

293

9,393

Suspended sediment

Mean 

concentration 

(ppm)

900 

960 

1,010 

1,140 

1,080

,810 

,520 

,400 

,600 

,870 

,110 

,210 

,750 

,650 

,670

,520 

,550 

1,490 

1,560 

1,910

1,860 

1,650 

1,630 

1,580 

1,760 

1,750 

1,730 

1,440 

1,460 

1,430 

1,720

Tons 

per 

day

680 

690 

730 

820 

s840

si, 930 

1,260 

1,130 

1,290 

2,140 

2,230 

2,150 

1,630 

1,440 

1,390

1,140 

1,160 

1,140 

1,250 

1,540

1,470 

1,280 

1,250 

1,210 

1,360 

1,380 

1,320 

1,100 

1,170 

1,150 

1,360

40, 630

January

240 

220 

180 

180 

240

250 

230 

230 

230 

240

220 

240 

240 

230 

230

220 

220 

220 

220 

220

230 

240 

240 

240 

260

270 

260 

260 

300 

280 

290

7, 390

1,790 

930

570 

950 

990 

870 

930 

810

720

840

940 

1,230 

870

440 

760 

850 

670 

720 

610

~

1,160 

550 

e330 

e320 

e470

380 

590 

610 

540 

600

480 

e450 

e450 

450 

e380 

e460 

e310 

e420 

eSOO 

500 

580 

800 

560 

e360 

e290

320 

530 

640 

540 

540 

480

15,610

November

Mean

charge 

(secondfeet)

293 

278 

283 

283 

283

288 

293 

303 

303 

298 

303 

303 

298 

303 

308

298 

298 

298 

293 

293

298 

303 

303 

314 

308 

308 

308 

308 

308 

308

8,966

Suspended sediment

Mean 

concentration 

(ppm)

1,400 

1,500 

1,520 

1,840 

1,550

1,550 

1,600 

1,370 

1,420 

1,400

1,780 

1,830 

1,700 

1,590 

2,060

2,620 

1,980 

1,960 

1,820 

1,720

1,810 

1,640 

1,710 

1,690 

1,700 

1,570 

2,030 

1,820 

1,700 

1,750

..

Tons 

per 

day

1,110 

1,130 

1,160 

1,410 

1,180

1,210 

1,270 

1,120 

1,160 

1,130

1,460 

1,500 

1,370 

1,300 

1,710

2,110 

1,590 

1,580 

1,440 

1,360

1,460 

1,340 

1,400 

1,430 

1,410 

1,300 

1,690 

1,510 

1,410 

1,460

41, 710

February

260 

280 

270 

270 

260

270 

300 

300 

300 

330

320 

310 

310 

310 

320

310 

414 

398 

414 

420

403 

376 

403 

398 

414

436 

452 

425

9,673

710

600 

820 

710

720 

690 

690 

640 

770 

720 

580 

600 

650 

610

700 

800 

1,080 

1,030 

1,000 

1,110 

1,250 

1,470 

1,810 

1.86P

1,930 

2,330 

2,610

500 

e570 

580 

600 

500

520 

560 

560 

520 

690

620 

490 

500 

540 

530

590 

890 

1,160 

1,150 

1,130 

1,210 

1,270 

1,600 

1,940 

2,080

2,270 

2,640 

2,990

29,400

December

Mean

charge 

(secondfeet)

308 

308 

308 

298 

288

283 

283 

283 

258 

250 

120 

85 

150 

200 

240

250 

240 

240 

250 

300

300 

230 

230 

250 

240

220 

220 

220 

220 

240 

240

7,562

Suspended sed ment

Mean 

concentration 

(ppm)

1,700 

1,570 

1,610 

2,000 

1,770

1,940 

1,840

1,700 

1,730

790 

2,010 

2,370 

2,050

1,130 

1,030

840 

850 

1,100 

1,120 

1,330 

1,410

T^s 

F-?r

day

1,410 

1,310 

1,340 

1,610 

1,380

1,480 

1,410 

el, 300 

1,180 

1,170 

e290 

e!40 

e380 

e450 

e510

550 

1,300 

1,540 

1,380 

e 1,100

e760 

700 

e680 

700 

e600 

500 

500 

650 

670 

860 

910

28,760

March

382 

366 

366 

366

o on JOi

382 

366 

324 

324 

355

300 

180 

200 

350 

442 

408 

382 

366 

324 

355 

376 

376 

403 

382 

361

371 

355 

334 

334 

376 

392

10, 980

2,600 

2,220 

2,220 

2,080 

2,260

1,920 

2,420 

2,360 

1,900 

2,310

2,030 

1,660 

2,050 

2,000 

2,680 

2,280 

2,790 

2,280 

1,960 

1,890 

1,860 

1,880 

2,060 

1,990 

2,020 

2,090 

1,900 

1,500 

1,620 

1,730

2,680 

2,190 

2,190 

2,060 

2,330

1,980 

2,390 

2,060 

1,660 

2,210

e 1,600 

990 

900 

1,940 

2,390 

2,950 

2,350 

2,760 

1,990 

1,880 

1,920 

1,890 

2,050 

2,120 

1,940

2,020 

2,000 

1,710 

1,350 

1,640 

1,830

62, 170

e Estimated.

s Computed by subdividing day.

326665 O - 55 - 19
280 MISSOURI RIVER BASIN

NIOBRARA RIVER BASIN Continued

NIOBRARA RIVER NEAR CODY, NEBR.~Continued

Suspended sediment, water year October 1949 to September 1950 Continued

Day

1 

2 

3 

4 ......

5 

6 

7 - 

8------

g ......

10 

11 

12------

13 

14 

15 

16 

17 

18------

19------

20------

01 ______

99ii------ 

oqij------

24 

25------

26------

97a I ------ 

noiO------ 

9Qitf------

30 

31-- 

Total1 

2______

3 ......

4 -.-.-_

g _ __

6 ...

7 

------

g ......

10 

11 ......

12.

13 

14 

15 _ 

16 - - 

17 

18------

19-....-

9nsU------ 

21 ... 

22 

23 ------ 

24 

25 

26 

27 ------ 

28 

29 

30 

31 -. ..

TotalApril

Mean

discharge 

(secondfeet)

392 

398 

398 

382 

382

382 

371 

376 

376 

392

387 

403 

392 

371 

361

340 

334 

334 

334 

319

308 

298 

308 

324 

308 

303 

303 

340 

371 

355

10,642

Suspended sediment

Mean 

concentration 

(ppm)

1,830 

1,990 

2,060 

1,800 

1,740

1,860 

1,920 

1,850 

1,920 

1,950

1,930 

2,010 

2,190 

2,090 

2,070

1,810 

1,850 

1,930 

1,900 

2,010

2,110 

1,840 

1,760 

2,070 

2,050

1,620 

1,840 

1,860 

2,170 

2,010

Tons 

per 

day

1,940 

2,140 

2,210 

1,860 

1,790

1,920 

1,920 

1,880 

1,950 

2,060 

2,020 

2,190 

2,320 

2,090 

2,020

1,660 

1,670 

1,740 

1,710 

1,730

1,750 

1,480 

1,460 

1,810 

1,700

1,320 

1,510 

1,710 

2,170 

1,930

55,660

July

282 

253 

258 

273 

273 

258 

253 

243 

248 

243 

258 

283 

263 

268 

253

263 

253 

453 

283 

273 

253 

243 

238 

253 

329

273 

314 

283 

263 

258 

258

8,399

2,010 

1,300 

940 

920 

980 

840 

880 

690 

700 

780 

760 

880 

910 

860 

730

830 

830 

1,930 

1,980 

1,440 

1,300 

1,240 

940 

860 

1,320 

1,540 

1,650 

1,270 

990 

980 

1,120

si, 850 

890 

650 

680 

720 

590 

600 

450 

470 

510 

530 

670 

650 

620 

500

590 

570 

S2.830 

1,510 

1,060 

890 

810 

600 

590 

1,170

1,140 

1,400 

970 

700 

680 

780

26, 670

May

Mean

discharge 

(secondfeet)

376 

387 

398 

376 

408

392 

458 

531 

549 

555

549 

497 

436 

398 

361

340 

330 

320 

310 

308

288 

288 

298 

303 

314 

319 

340 

303 

324 

355 

329

11,740

Suspended sediment

Mean 

concentration 

(ppm)

1,820 

1,940 

2,230 

1,880 

2,290

1,640 

1,590 

1,610 

2,290 

2,620

2,400 

3,140 

2,520 

2,350 

2,050

1,590 

1,490 

1,560 

1,740 

1,770

1,820 

1,520 

1,520 

1,500 

1,560 

1,810 

1,240 

1,320 

1,400 

1,460 

1,470

Tons 

per 

day

1,850 

2,030 

2,400 

1,910 

2,520

1,740 

1,970 

2,310 

3,390 

3,930

3,560 

4,210 

2,970 

2,530 

2,000

1,460 

1,330 

1,350 

1,460 

1,470

1,420 

1,180 

1,220 

1,230 

1,320 

1,560 

1,140 

1,080 

1,220 

1,400 

1,310

60,470

August

253 

243 

248 

253 

253 

243 

334 

288 

268 

234 

219 

238 

263 

713 

350

319 

283 

258 

253 

243 

258 

248 

243 

234 

253

659 

1,080 

414 

392 

319 

314

10, 170

970 

920 

840 

790 

840 

770 

1,570 

2,020 

1,930 

1,190 

890 

1,250 

1,260 

3,670 

3,220

2,050 

1,450 

1,160 

1,210 

1,150 

1,060 

1,100 

930 

770 

910 

3,960 

6,780 

4,970 

2,690 

1,770 

1,380

660 

600 

560 

540 

570 

500 

si, 510 

1,570 

1,400 

750 

530 

800 

890 

s7,110 

3,040

1,770 

1,110 

810 

830 

750 

740 

740 

610 

490 

620

s 14, 100 

s 23, 700 

5,560 

2,850 

1,520 

1,170

78,400

June

Mean

discharge 

(secondfeet)

314 

303 

283 

268 

268

258 

253 

248 

229 

224

224 

234 

234 

283 

298

303 

288 

324 

361 

303

298 

278 

258 

298 

268

243 

243 

229 

229 

224

8,068

Suspended sediment

1'^an 

ccncentration 

(ppm)

1,400 

1,190 

1,210 

1,080 

1,070

1,310 

840 

950 

830 

750

590 

940 

900 

1,130 

1,100

990 

940 

1,050

1,340

1,220 

900 

910 

880 

1,010

820 

810 

690 

800 

750

Tons 

per 

day

1,190 

970 

920 

780 

770

910 

570 

640 

510 

450

360 

590 

570 

860 

880

810 

730 

920 

el, 500 

1,100

980 

680 

630 

710 

730 

540 

530 

430 

490 

450

22.200

September

303 

283 

273 

248 

234 

229 

229 

229 

238 

273 

288 

324 

319 

314 

334

376 

340 

308 

308 

340 

329 

319 

293 

293 

293 

288 

298 

283 

308 

314

8,808

1,050 

1,110 

950 

860 

800 

760 

690 

750 

720 

980 

1,330 

1,320 

1,330 

1,500 

1,430

1,620 

1,840 

1,310 

1,360 

1,570 

1,210 

1,320 

1,380 

1,280 

1,160

1,190 

980 

990 

1,170 

1,100

860 

850 

700 

580 

500 

470 

430 

460 

460 

720 

1,030 

1,150 

1,150 

1,270 

1,290

1,640 

1,690 

1,090 

1,130 

1,440 

1,070 

1,140 

1,190 

1,010 

920 

930 

790 

760 

970 

930

28, 620

Total discharge for year (second-foot-days)...................................................... Ill, 791

Total load for year (tons)....................................................................... 490,300

e Estimated.

s Computed by subdividing day.
NIOBRARA RIVER BASIN Continued 

NIOBRARA RIVER NEAR CODY, NEBR. Continued

Particle-size analyses of suspended sediment, water year October 19

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanical

Date of collection

Oct. 1, 1949 ............

Oct. 10. ................

Oct. 15. ................

Oct. 22 ................

Nov. 1 .................

Dec. 31. ................

Mar. 1, 1950 ...........

July 9 ..................

Aug. 14 ................

Sept. 20 ................

Time

6:10 a. in. 

11:45 a.m. 

12 -.15 p.m. 

1:50 p.m. 

3:15 p. m.

10:00 a. m. 

10:00 a. m. 

4:20 p. m. 

9:20 a. m.

11:35 a.m. 

11:25 a.m. 

9:10 a.m. 

8:40 a. m. 

1:20 p. m.

8:15 a.m. 

10:30 a. m. 

1:35 p.m. 

6:15 p.m.

10:15 a.m. 

12:50 p.m. 

11:30 a.m. 

9:40 a. m. 

1:05 p. m.

Discharge 

(secondfeet)

298 

458 

345 

308 

298

308 

308 

273 

240

387 

366 

395 

590 

549

278 

234 

238 

234

253 

578 

913 

366 

319

Suspended sed

Concentration 

of sample 

(ppm)

1,000 

1,500 

1,630 

1,400 

1,210

1,400 

2,110 

1, 700 

960

2,640 

1,890 

2,000 

1,780 

2,660

780 

790 

910 

670

1,000 

3,550 

5,470 

1', 780 

1,490

Concentration 

of suspension 

analyzed 

(ppm)

470 

1,540

1,460

3,130 

6,230 

840

Percent fine

0.002 0.004

44 

36 

13

0.008 0.016

58 

50 

17
282 MISSOURI RIVER BASIN

NIOBRARA RIVER BASIN Continued 

NIOBRARA RIVER NEAR SPARKS, NEBR.

LOCATION. At gaging station at bridge on State Highway 7, 2.2 miles dowrstream from Big

Beaver Creek, 5i miles downstream from Minnechaduza Creek, and 6i miles southwest of

Sparks, Cherry County. 

DRAINAGE AREA.--6,406 square miles.

RECORDS AVAILABLE. Sediment records: May 1947 to September 1950. 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, not determined; minimum

daily, not determined.

Sediment loads: Maximum daily, 18,000 tons Aug. 27; minimum daily, 51 tons Jan. 27. 

EXTREMES, 1947-50. Sediment concentrations: Maximum daily, 6,300 ppm May 30, 1949;

minimum daily, not determined.

Sediment loads: Maximum daily, 38,000 tons May 30, 1949; minimum daily, not determined. 

REMARKS. Records of discharge for water year October 1949 to September 1?50 given in

Water-Supply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

Q

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

charge 

(second- 

" feet)

793 

804 

750 

782

771

892 

980 

859 

970 

1,090

1,060 

936 

860 

840 

800

800 

800 

800 

826 

848

804 

800 

800 

804 

837

848 

793 

848 

804 

782 

793

26, 174

Suspended sediment

Mean 

concentration 

(ppm)

1,100 

770 

840 

910 

910

1,200 

1,600 

1,300 

1,200 

1,600

1,300 

1,000 

910

*770

770 

770 

980 

1,200 

1,400

1,700 

1,300 

1,200 

1,100 

980

1,000 

1,600 

1,500 

1,100 

1,400 

1,300

-

Tons 

per 

day

2,400 

1,700 

1,700 

1,900 

1,900

2,900 

4,200 

3,000 

3,100 

4,700

3,700 

2,500 

2,100 

2,300 

1,700

1,700 

1,700 

2,100 

2,700 

3,200

3,700 

2,800 

2,600 

2,400 

2,200

2,300 

3,400 

3,400 

2,400 

3,000 

2,800

82,200

November

Mean

charge 

(secondfeet)

804 

804 

782 

804 

826

730 

837 

815 

848 

826

837 

848 

848 

793 

826

804 

815 

750 

782 

782

740 

782 

815 

793 

815 

804 

793 

782 

826 

782

24,093

Suspended sediment

Mean 

concentration 

(ppm)

1,300 

2,300 

1,800 

1,700 

2,000

2,000 

1,700 

1,500 

1,300 

1,500

1,300 

1,500 

1,300 

1,200 

1,400

1,300 

1,300 

2,000 

1,800 

1,500

1,600 

1,300 

1,000 

1,500 

1,500

1,600 

1,100 

980 

1,000 

1,300

-

Tuns 

per 

day

sjooo

3,800 

3,700 

4,500

3,900 

3,800 

3,300 

3,000 

3,300

2,900 

3,400 

3,000 

2,600 

3,100

2,800 

2,900 

4,000 

3,800 

3,200

3,200 

2,700 

2,200 

3,200 

3,300

3,500 

2,400 

2,100 

2,200 

2,700

96, 300

December

Mean

charge 

(secondfeet)

793 

793 

760 

700

660 

550 

440 

410 

450

250 

170 

170 

400 

550

600 

660 

680 

710 

650

650 

690 

760 

850 

800 

780 

850 

880 

850 

800 

810

19,898

Suspended sedimeat

Mean 

concentration 

(ppm)

1,100 

1,100 

1,800 

1,800 

1,200

980

1,100 

1,300

980

1,000 

910 

1,300

1,300

220 

280 

140

-

Tons 

per 

day

2,300 

2,400 

3,900 

3,700 

2,300

1,700 

el, 400 

el, 200 

1,200 

1,600

e680 

e420 

e420 

el, 000 

1,500

1,600 

1,600 

2,400 

62,500 

2,300

el, 900 

el, 800 

el, 700 

el, 600 

el, 200

e750 

500 

670 

320 

6300 

e750

47,610

e Estimated.
NIOBRARA RIVER BASIN 

NIOBRARA RIVER BASIN Continued 

NIOBRARA RIVER NEAR SPARKS, NEBR.--Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

283

Day

2

3

19

nn

2290

25

1c

nn

op

29

31 

Totalg

12

13

19

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

January

Mean

charge 

(secondfeet)

830 

880

850

880 

850 

820 

820

830 

790 

820 

760 

760 

760

25,950

Suspended sediment

Mean 

concentration 

(ppm)

560

70 

24

-

Tons 

per 

day

1,300 

el, 300

e280

170 

e!60 

elSO 

e!20

e!20 

51 

e60 

e70 

e80 

e85

8,990

April

1,030 

1,050 

1,060 

1,040 

1,020

1,000 

969 

936 

958 

1,020

969 

992 

992 

958 

925 

947 

914 

881 

892 

870

826 

837 

837 

870 

804

782 

782 

859 

1,000 

947

27, 967

1,100 

1,200 

1,200 

770 

980

980 

840 

910 

700 

660 

2,400 

2,300 

1,700 

1,400 

1,200 

910 

700 

1,300 

1,200

1,000 

1,000 

1,000

~

3,100 

3,400 

3,400 

2,200 

2,700 

2,600 

2,200 

2,300 

1,800 

1,800

6,300 

6,200 

4,600 

3,600 

3,000 

2,300 

1,700 

3,100 

2,900 

e2,800 

e2,200 

2,300 

2,300 

2,300 

e2,100

e2,100 

e2,100 

e2,300 

e 2, 700 

2,600

85,000

February

Mean

charge 

(secondfeet)

750 

790 

770 

800 

810

780 

750 

740 

740 

780 

780 

840 

860 

890 

930

1,050 

1,050 

1,100 

1,100 

1,100

1,100 

1,050 

1,050 

1,050 

1,000

1,000 

1,050 

1,000

25,710

Suspended sediment

Mean 

concentration 

(ppm)

46 

49 

170 

210 

130

110 

180 

250 

200 

180

98

490 

210

500 

220 

360 

280 

360

600 

980 

670

-

Tuns 

per 

day

93 

100 

350 

450 

280

230 

360 

500 

400 

380 

e360 

e340 

e300 

e240 

e280

e280 

280 

e550 

1,500 

620

1,500 

620 

1,000 

790 

970

1,600 

2,800 

1,800

18,970

May

947 

947 

980 

1,030 

1,150

1,050 

,100 

,280 

,350 

,290

,240 

,200 

1,080 

1,000 

1,000 

947 

936 

936 

958 

947

947 

881 

804 

848 

859 

892 

903 

870 

881 

870 

903

31,026

2,100 

1,500 

2,700 

3,200

3,200 

2,900 

3,100 

2,700 

2,800 

2,400 

2,200 

1,500 

1,300 

1,800 

1,600 

1,100 

l,bOO 

1,300 

1,000

1,100 

980 

1,200 

1,300 

1,400

1,300 

1,300 

1,100 

1,300 

1,800 

1,300

--

63,600 

5,400 

4,000 

7,500 

9,900

9,100 

8,600 

11,000 

9,800 

9,800

8,000 

7,100 

4,400 

3,500 

4,900 

4,100 

2,800 

3,800 

3,400 

2,600 

2,800 

2,300 

2,600 

3,000 

3,200

3,100 

3,200 

2,600 

3,100 

4,200 

3,200

156, 600

March

Mean

charge 

(secondfeet)

910 

830

800

1,000

1,200 

950 

850 

850 

920

1,090 

1,080 

1,210 

1,110 

1,170

1,160 

1,090 

947 

969 

1,050 

1,060

29,046

Suspended sedrnent

Mean 

concentration 

(ppm)

230 

180 

270 

360

2,000

1,200

2,000 

2,100

1,900 

1,500

910

910 

1,300 

1,100

Tons 

p,>T 

di-T

570 

400

e2,600

5,400

e 5, 500 

3,100 

e3,900 

4,600 

5,200

5,600 

4,400 

e4,200 

e2,700 

2,900

e2,600 

e2,500 

e2,000 

2,400 

3,700 

3,100

95,970

June

837 

859 

826 

760 

760

700 

730 

700 

649 

640

660 

720 

710 

848 

837 

782 

804 

815 

848 

859

720 

730 

680 

650 

740

620 

660 

670 

630 

620

22,055

1,000 

980 

1,300 

1,200 

980

1,300 

1,400 

980 

840 

770

840 

770 

660 

980 

770 

980 

980 

910 

840 

540

1,200 

640 

1,200 

980 

980

910 

980 

700 

700 

910

2,300 

2,300 

2,900 

2,500 

2,000 

2,500 

2,800 

1,900 

1,500 

1,300

1,500 

1,500 

1,300 

2,200 

1,700 

2,100 

2,100 

2,000 

1,900 

1,300 

2,300 

1,700 

2,200 

1,700 

2,000

1,500 

1,700 

1,300 

1,200 

1,500

56,700
284 MISSOURI RIVER BASIN 

NIOBRARA RIVER BASIN Continued 

NIOBRARA RIVER NEAR SPARKS, NEBR. Continued

Suspended sediment, water year October 1949 to September 1950 Continued

Day

2

9n

on

23

24

no

29

TotalJuly j

Mean 

discharge 

(secondfeet)

640 

690 

690 

690 

690

690 

690 

630 

680 

680

700 

892 

740 

760 

750

720 

760 

804 

1,100 

782

730 

710 

720 

750 

740 

859 

750 

771 

710 

740 

740

22,998

Suspended sediment

Mean 

concentration 

(ppm)

610 

910 

610 

700 

620

590 

570 

470 

600 

840

1,300 

1,300 

910 

840 

770

570 

840 

840 

1,800 

1,200

910 

470

450 

560 

910 

1,200 

550 

910 

770 

680

Tons 

per 

day

1,100 

1,700 

1,100 

1,300 

1,200

1,100 

1,100 

800 

1,100 

1,500

2,500 

3,100 

1,800 

1,700 

1,600

1,100 

1,700 

1,800 

5,300 

2,500

1,800 

900 

e800 

910 

1,100 

2,100 

2,400 

1,100 

1,700 

1,500 

1,400

50,810

Total discharge for year (second-foot-day. 

Total load for year (tons) ..............

August

Mean 

discharge 

(secondfeet)

660 

730 

710 

720 

690

730 

670 

730 

750 

740

782 

848 

848 

. 1,190 

1,090

936 

804 

690 

680 

680

680 

660 

690 

670 

690

782 

1,600 

1,110 

969 

1,040 

848

25,417

Suspended sediment

Mean 

concentration 

(ppm)

980 

910 

660 

840 

660

910 

840 

910 

770 

910

1,100 

1,500

1,900 

910

1,100 

980 

640

910 

660 

510 

440

2,700 

1,300 

1,200

Tons 

per 

day

1,700 

1,800 

1,300 

1,600 

1,200

1,800 

1,500 

1,800 

1,600 

1,800 

2,300 

3,400 

e2,100 

e5,000 

5,600 

2,300 

e2,000 

2,000 

1,800 

1,200

e 1, 200 

1,600 

1,200 

920 

820

el, 300 

e 18, 000 

8,100 

3,400 

3,400 

e 1, 900

85,640

September

Mean

charge 

(secondfeet)

848 

848 

815 

793 

750

760 

730 

740 

740 

793 

848 

848 

892 

870 

859

870 

947 

881 

848 

903

1,030 

903 

881 

859 

892

793 

804 

793 

837 

838

25,223

Suspended sediment

1'san 

concentration 

(ppm)

700 

640

480 

670

500 

430 

560 

770

1,000 

1,000 

1,500 

1,500 

1,300

1,500 

1,500

980 

1,000

1,000 

980 

770

Tons 

per 

day

1,600 

1,500 

el, 000 

1,000 

1,400

1,000 

850 

1,100 

1,500 

el, 900

2,300 

2,300 

3,600 

3,500 

3,000

3,500 

e3,800 

e 3, .600 

3,400 

e3,200

e3,600 

2,400 

2,400 

e2,300 

2,400

2,100 

1,700 

el, 600 

el, 700 

e 1, 800

67,050

........................................................ 851,800

e Estimated.
NIOBRARA RIVER BASIN Continued 

NIOBRARA RIVER NEAR SPARKS, NEBR. Contin

Particle-size analyses of suspended sediment, water year October 19

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanica

Date of collection

A

. ,tf 9Q

Sept. 15 .................

Time

10:08 a. m. 

2:45 p.m. 

3:45 p. m. 

2:10 p. m. 

3:55 p. m.

11:40 a. m. 

2:30 p.m. 

2:00 p. m. 

9:35 a.m. 

4:55 p.m. 

3:25 p. m.

Discharge 

(secondfeet)

1,660 

793 

1,040 

881 

870

740 

740 

1,040 

1,580 

936 

837

Suspended se

Concentration 

of sample 

(ppm)

3,070 

690 

526 

460 

690

570 

580 

2,070 

2,160 

920 

560

Concentration 

of suspension 

analyzed 

(ppm)

2,850

4,630 

1,330

Percent fin

0.002 0.004

48 

35

0.008 0.016

60 

43
MISSOURI RIVER BASIN

NIOBRARA RIVER BASIN Continued 

LONG PINE CREEK NEAR RIVERVIEW, NEBR.

LOCATION. At gaging station at county highway bridge, about 1 mile downstream from Bone

Creek, and 5f miles southwest of Riverview, Keyapaha County. 

DRAINAGE AREA. 390 square miles.

RECORDS AVAILABLE. Sediment records: April 1948 to September 1950. 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 9,940 ppm May 7: minimum

daily, 80 ppm May 13.

Sediment loads: Maximum daily, 14,200 tons Mar. 23; minimum daily, 27 tons May 13. 

EXTREMES, 1948-50. Sediment concentrations: Maximum daily, 9,940 ppm May 7, 1950;

minimum daily, not determined. 

Sediment loads: Maximum daily, 14,200 tons Mar. 23, 1950; minimum daily, 14 tons

June 10, 1948. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in

Water-Supply Paper 1176.

Monthly and annual summary oi water and suspended-sediment discharge, water year October 19'<9 to September 1950

Month

September ........

Water year 1949-50

Discharge 

(secondfoot-days)

3,417 

3,016 

3,204 

3,244 

3,312 

4,624

3,434 

3,819 

3,514 

3,271 

4,038 

3,891

42, 784

Runoff 

(acre -feet)

6,780 

5,980 

6,360 

6,430 

6,570 

9,170

6,813 

7,570 

6,970 

6,490 

8,010 

7,720

84, 860

Suspended sediment

Load 

(tons)

7,010 

3,310 

4,680 

5,480 

13,380 

36,440

5,870 

14,560 

11,210 

5,540 

15,650 

17,920

141,000

Daily load (tons)

Mean

226 

110 

151 

177 

478 

1,180

196 

470 

374 

179 

505 

597

386

Maximum

2,340 

160 

330 

440 

5,280 

14, 200

810 

7,750 

1,860 

300 

3,950 

4,130

14, 200

Minimum

88 

68 

81 

65 

79 

40

44 

27 

110 

69 

88 

150

27

Concentration (ppm)

Weighted 

mean

760 

406 

541 

626 

1,500 

2,920

633 

1,410 

1,180 

627 

1,470 

1,710

--

Maximum 

daily

4,000 

570 

1,180

5,620 

9,520

2,390 

9,940 

4,290 

1,050 

3,920 

3,980

9,940
NIOBRARA RIVER BASIN Continued 

LONG PINE CREEK NEAR RIVERVIEW, NEBR. Continued

Particle-size analyses of suspended sediment, water year October 1949 to 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Oct. 3, 1949 .........

Feb. 4, 1950 ......

Feb. 28 .............

Time

11:00 a.m. 

3:30 p.m. 

3:45 p.m. 

4:10 p.m. 

12:30 p.m.

2:00 p.m. 

6:40 p.m. 

8:30 p.m. 

7:20 p.m. 

7:00 a.m.

12:30 p.m. 

9:05 a.m. 

6:35 a.m. 

4:20 p.m. 

10:50 a.m.

12:15 p.m. 

10:30 a.m. 

9:20 a.m. 

7:30 a.m. 

6:50 a.m.

7:55 p.m. 

10:35 a.m. 

10:35 a.m. 

10:50 a.m. 

4:20 p.m.

Discharge 

(secondfeet)

105 

116 

100 

114 

103

100 

306 

350 

658 

291

118 

352 

168 

128 

126

109 

112 

101 

130 

386

269 

170 

170 

112 

308

Suspended sedim

Concentration 

of sample 

(ppm)

211 

377 

436 

415 

261

273 

6,920 

10, 020 

28, 400 

7,590

654 

15, 300 

2,360 

533 

597

303 

381 

370 

5,070 

8,530

7,160 

1,420 

1,420 

555 

2,640

Concentration 

of suspension 

analyzed 

(ppm)

391

717

3,820 

6,240 

11,200 

2,410

8,900 

1,600 

592 

1,250

3,770 

7,260

6,760 

1,190 

1,180

3,450

0.002 0.004

11 

12 

10 

8

9 

9 

6 

9

24 

30

22 

28 

21

12

Percent finer t

0.008

30 

26

0.016

16 

19 

14 

11

14 

14 

7 

14

38 

44

35 

33 

31

18

0.0
NIOBRARA RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN NIOBRARA RIVER 

Chemical analyses, in parts per million, water year October 1949 to S

Date of collection

Discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(SiO.)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Carbonate

Bicarbonate

Sulfate 

(S04)

Chloride 

(Cl) 

NIOBRARA RIVER NEAR HAY SPRINGS, NEBR.

July 22, 1949. .......

July 4, I960 ........

Sept. 17 ............

18

18

33

8.4

7.8

7.9

8.4

412

385

402

438

54

42

37

46

0.05

.03

33

.04

44

46

52

60

5.3

6.8

6.9

6.9

44

34

30

33

10

0

0

10

220

228

237

245

22

21

21

23

4.5

4.0

3.0

4.0
NIOBRARA RIVER BASIN 289

NKBRARA RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN NIOBRARA RIVER BASIN Continued 

Periodic determinations of suspended-sediment discharge, water year October 1949 to September

Date

Instantaneous 

water discharge 

(second -feet)

Suspended sediment

Mean 

concentration 

(ppm)

Instantaneous 

discharge 

(tons per day)

NIOBRARA RIVER NEAR HAY SPRINGS, NEBR.

Apr. 15, 1950.............

July 10 ...................

July 18 ...................

July 25 ...................

Aug. 1 ...................

Aug. 26 ..................

Sept. 13 ..................

Sept. 17 ..................

Sept. 19 ..................

30

25

23

18

261

41

15

29

162

124

354

134

2,780

88

98

1,740

3,800

42

106

13.1

6.0

23.9

8.0

946

5.5

4.8

1,230

4,230

25

1.7

3.7

11.1

8.3

NIOBRARA RIVER NEAR NORDEN, NEBR.

Apr. 13, 1950 ............

July 8 ....................

Aug. 4 ...................

Aug. 28 ..................

Sept. 21 ..................

Oct. 18 ..................

Apr. 18, 1950.............

May 12 ...................

June 9 ....................

July 8 ....................

Aug. 4 ...................

Aug. 28 ..................

Sept. 11 ..................

703

989

NIOBRARA RIVER A1

926

nen

1,170

r MEADVILLE, NEBR.

2 940

990

5,900

3,120

2,480

SNAKE RIVER NEAR BURGE, NEBR.

Oct. 14 ...................

Nov. 7 ...................

Nov. 15 ..................

Nov. 30. ..................

Feb. 9, 1950 .............

Feb. 26 ..................

Mar. 6 ...................

Mar. 15 ..................

Apr. 15 ..................

Apr. 17 ..................

May 10 .....:.............

May 11 ...................

May 29 ...................

June 7 ....................

June 19 ...................

July 11 ...................

July 14 ...................

July 29 ...................

Aug. 11. ..................

Aug. 29 ..................

Aug. 31. ..................

Sept 16 ............

9flO

250

9ftn

296

233

230

253

733

700

400

1 000

940

oqft

322

330

362

567

495

CJ.1

320

594

QO1

001

354

99Q

9 en

247

KEYAPAHA RIVER NEAR HIDDEN TIMBER, S. DAK.

May 19 ..................

June 21 ..................

Sept. 14 .................

81

67

22

23

44

13

11

25

286

72

123

165

38

31

5.5

52

4.3

7.6

20

1.3

.9
290 MISSOURI RIVER BASIN

NIOBRARA RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN NIOBRARA RIVER BASIN Continued 

Periodic determinations of suspended-sediment discharge, water year October 1949 to September 1950 Continued

Date

Instantaneous 

water discharge 

(second-feet)

Suspended sedimeit

Mean 

concentration 

(ppm)

Instantaneous 

discharge 

(tons per day)

KEYAPAHA RIVER AT WEWELA, S. DAK.

Oct. 20, 1949 .............

Feb. 28, 1950.............

Mar. 29 ..................

June 1 ...................

Aug. 24 ..................

Sept. 15 ..................

33.4 

70 

211 

138 

92

87 

77 

39.2 

40.6

64 

31 

466 

3,740 

239

240 

415 

96 

56

5.8 

5.9 

265 

1,390 

59

56 

86 

10 

6.1

VERDI ORE RIVER AT VERDI ORE, NEBR.

Octo 10, 1949 .............

Nov. 8 ...................

Nov. 21...................

Apr. 19, 1950.............

486 

114 

122 

133 

e!40

6,520 

2,600 

1,220 

1,430 

1,450

8,560 

800 

402 

514 

548
NIOBRARA RIVER BASIN Continue

MISCELLANEOUS ANALYSES OF STREAMS IN NIOBRARA RI

Particle-size analyses of suspended sediment, water year Octo

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection Time

Discharge 

(secondfeet)

Suspended sedi

Concentration 

of sample 

(ppm)

Concentration 

of suspension 

analyzed 

(ppm)

0.002

Percent finer 

0.004 0.008 0.016 0

NIOBRARA RIVER NEAR HAY SPRINGS, 

Apr. 15, 1950 ...........

July 10 .................

Aug. 13.................

Aug. 26 .................

Aug. 29 .................

Sept. 19............. ....

12:10 p.m.

5:20 p.m.

412

41

22

29

1,740

3,800

226

63

106

2,350

8,150

--

46 50

40

--

57

_

80

60

59

51

_

--

NIOBRARA RIVER NEAR NORDEN, NEB

Apr. 13, 1950 ...........

July 8. ..................

Sept. 21.. ................

Oct. 18 ................. 7:45 p.m.

1,150

825

703

1,220

989

1,900

1,040

548

750

1,510

1,170

38

NIOBRARA RIVER AT MEADVILLE, NE

Apr. 18, 1950 ...........

May 12 .................

Aug. 28 .................

11:00 a.m. 

10:50 a.m. 

11:15 a.m. 

10:40 a. m.

1,460 

1,880 

855 

2,040

net. 5, 1040 ............

Oct. 14 .................

Nov. 7 .................

Nov. 30 .................

Feb. 9, 1950 ............

Feb. 26 .................

t^?n n. m.

4:05 p.m. 

2:45 p.m. 

11:40 a.m. 

1:00 p.m. 

1:40 p.m.

24 1 

289 

263 

260 

296 

276

1,880 

1,670 

718 

2,940

SNAKE RIVER NEAR BURGE, NEBR.

532 

727 

834 

771 

400 

1.350
NIOBRARA RIVER BASIN Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN NIOBRARA RIVER BA

Particle-size analyses of suspended sediment, water year October 1949 to Se

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 8

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection Time

Discharge 

(secondfeet)

Suspended sedim

Concentration 

of sample 

.(ppm)

Concentration 

of suspension 

analyzed 

(ppm)

Percent finer 

0. 002 0. 004 0. 008 0.016 0.

SNAKE RIVER NEAR BURGE, NEBR. Continued

Mar. 15.................

Aug. 31 .................

11:00 a.m.

12:20 p.m.

11:30 a.m.

11:10 a. m.

8:45 a. m.

296

256

296

367

371

211

230

221

230

236

790

860

820

940

830

674

516

322

330

404

KEYAPAHA RIVER NEAR HIDDEN TIMBER, S. DAK.

Sept. 14. ................

Sept. 15. ................

1:40 p. m. 

8:40 p. m. 

12:00 m.

22 

13 

11

72 

38 

31

145 

69 

60

40

17 

48 

44

KEYAPAHA RIVER AT WEWELA, S. DAK.

10:45 a.m. 

9:50 a.m.

92 1 239 

40. 6| 56

VERDIGRE RIVER AT VERDIGRE, NEBR.

Oct. 10, 1949 ...........

Oct. 25 ................. 

Nov. 8 .................

6:00 p.m. 

10:50 a. m.

486

486

114

114 

122

6,520

6,520

2,600

2,600 

1,220

4,690

3,160

685

1,040

23

13

11

5

29

18

11

5

34

26

11

7

39

34

12

10
JAMES RIVER BASIN 

JAMES RIVER AT HURON, S. DAK.

LOCATION. At gaging station at city dam, 150 feet downstream from Chicago and North Western Rail

Highway 14, at Huron, Beadle County. 

DRAINAGE AREA. 16,800 square miles.

RECORDS AVAILABLE. Chemical analyses: April to September 1950. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Suppl

Chemical analyses, in parts per million, April to September 1

Date of collection

Apr. 3, 1950 .....

May 16 ...........

May 17 ..........

Sept. 6 ..........

Discharge 

(secondfeet)

2,580 

2,580 

2,520 

3,080 

3,520 

2,650

1,100 

685 

524 

39 

2

Temperature 

(°F)

PH

7.4 

7.4 

7.2 

7.6 

7.2 

7.5

7.8 

7.2 

8.6 

8.1 

7.8

Specific 

conductance 

(micromhos at 

25° C)

239 

261 

503 

456 

423 

456

522 

637 

700 

601 

975

Silica 

(SiO2)

11 

9.0 

14 

8.4 

8.0 

17

22 

18 

26 

23 

17

Iron 

(Fe)

0.20 

.04 

.04 

.02 

.02 

.04

.02 

.04 

.30 

.02 

.02

Calcium 

(Ca)

21 

26 

36 

33 

32 

42

48 

58 

60 

64 

76

Magnesium 

(Mg)

5.3 

7.0 

15 

15 

14 

16

22 

27 

27 

32 

36

Sodium 

(Na)

Potassium 

(K)

20 

17 

53 

45 

41 

35

38 

46 

53 

70 

97

Bicarbonate 

(HCOS )

77 

88 

172 

158 

154 

200

268 

299 

a 314 

356 

364

Sulfate 

(S04)

37 

41 

88 

78 

70 

60

67 

79 

83 

110 

178

Chlo

rid

(Cl)

9

10 

22 

20 

17 

13

2

17 

21 

26 

44

a Includes equivalent of 12 parts per million of carbonate (CO3 ).
JAMES RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN JAMES RIVER 

Chemical analyses, in parts per million, water year October 1949 to 

Date of collection

Discharge 

(secondfeet)

pH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Carbonate 

(CO,)

Bicarbonate 

(HCOS)

Sulfate 

(S04)

Chlo

ride 

(Cl)

JAMES RIVER AT JAMES10WN, N. DAK.

Apr. 13 ............

Aug. 31 ............

2.5 

al.7 

1.7 

1,470 

889

174 

26 

a 16 

3.3

7.7 

7.3 

7.3 

7.1 

7.6

7.6 

7.7 

7.9 

7.8

1,140 

1,080 

1,100 

273 

436

620 

860 

1,260 

1,230

27 

27 

31 

15 

18

21 

19 

24 

30

0.02 

.02 

.04 

.04 

.04

.04 

.40 

.04 

.04

84 

94

25 

39

51 

68 

83 

93

36 

32 

28 

10 

17

23 

34 

36 

35

133 

118

16 

30

38 

87 

156 

141

0 

0 

0 

0 

0

0 

0 

0 

0

462 

454 

502 

120 

190

215 

344 

410 

438

200 

190 

197 

29 

65

102 

168 

255 

238

40 

33 

33 

3.0 

5.0

13 

29 

62 

51

JAMES RIVER A'l COLUMBIA, S. DAK.

May 2, 1950 ........

Sept. 8 ............

2,590 

1,480 

501 

142

31 

31

.1

7.4 

7.6 

7.9 

7.3

7.3 

8.1 

8.1

304 

420 

578 

619

679 

765 

1,010

14 

15 

22 

20

21 

28 

23

0.20 

.04 

.02 

.02

.34 

.16 

.02

26 

38 

52 

58

51 

60 

68

11 

16 

24 

29

29 

30 

44

24 

28 

47 

58

63 

63 

99

0 

0 

0 

0

0 

0 

0

134 

180 

300 

328

318 

334 

394

38 

60 

78 

82

92 

103 

170

8.

7.

1.

19

19 

20 

46

a Mean daily discharge.
LITTLE SIOUX RIVER BASIN

LITTLE SIOUX RIVER BASIN 

LITTLE SIOUX RIVER AT CORRECTIONVILLE, IOWA

LOCATION. At gaging station at bridge on U. S. Highway 20, 0.2 mile upstream from Bacon

Creek, half a mile west of Correctionville, Woodbury County, and three-quarters o* a

mile downstream from Pierson Creek. 

DRAINAGE AREA. 2,450 square miles.

RECORDS AVAILABLE. Sediment records: May to September 1950. 

EXTREMES,, May to September 1950. Sediment concentrations: Maximum daily, 12,200 ppm

July 12; minimum daily, 80 ppm June 9-10, Sept. 9.

Sediment loads: Maximum daily, 190,000 tons June 18; minimum daily, 20 tons Sept. 9. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in

Water-Supply Paper 1176.

Suspended sediment, May to September 1950

Day

Q

19

20

21 

22 

23 

24 

25 

26 

27 

28---*-- 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

May

Mean

discharge 

(secondfeet)

439 

420

401 

358 

323 

337 

340 

284

2,902

Suspended sediment

Mean 

concentration 

(ppm)

210 

200

140 

120 

110

280 

120

--

Tons 

per 

day

250 

230

ISO 

120 

96 

e220 

260 

92

1,420

June

Mean

charge 

(secondfeet)

250 

265 

265 

236 

208

198 

183 

173 

159 

144

138 

729 

458 

316 

303

256 

394 

6,180 

2,230 

1,400 

1,440 

1,620 

1,280 

1,000 

880

780 

672 

565 

475 

420

23,617

Suspended sediment

Mean 

concentration 

(ppm)

110 

170 

150 

100 

100

120 

110 

90 

80 

80

90 

7,010 

850 

500 

570 

420 

1,400 

11,400 

3,040 

2,300 

1,920 

3,740 

2,110 

1,100 

750

620 

560 

430 

330 

300

Tuns 

por 

day

74 

120 

110 

64 

56

64 

54 

42 

34 

31

34 

s 28, 800 

si, 210 

430 

470 

290 

si, 980 

190,000 

s 20, 900 

8,690 

7,460 

817,200 

7,290 

2,970 

1,780

1,310 

1,020 

660 

420 

340

293, 900

e Estimated.

a Computed by subdividing day.

3Z6665 O - 55 - 20
296 MISSOURI RIVER BASIN

LITTLE SIOUX RIVER BASIN Continued

LITTLE SIOUX RIVER AT CORRECTIONVILLE, IOWA Continued 

Suspended sediment, May to September 1950 Continued

Day

2

g

1 ft

99

00

oc

97

OQ

29

31 

TotalJuly

Mean

discharge 

(secondfeet)

371 

336 

301 

290 

270

244 

219 

199 

232

279

293 

1,820 

800 

655 

725

1,000 

708 

980 

1,080 

980

1,440 

1,540 

1,490 

1,720 

1,580

1,240 

1,080 

1,000 

840 

725 

672

25, 109

Suspended sediment

Mean 

concentration 

(ppm)

220 

180 

170 

160 

150

130 

120 

90 

160 

200

12, 200 

2,650 

800

7,620 

1,370 

2,430 

2,980 

1,250

2,380 

1,730 

1,340 

1,630 

1,250

960 

960 

1,730 

980 

590 

400

Tons 

per 

day

220 

160 

140 

130 

110

86 

71 

48 

100 

150

e2,600 

s 62, 800 

86,260 

1,410 

e5,400

s 23, 200 

2,620 

s7,000 

8,690 

3,310

930 

720 

540 

760 

530

320 

280 

4,670 

2,220 

1,150 

730

137, 4QO

August

Mean

charge 

(secondfeet)

640 

625 

565 

505 

460

420 

445 

432 

359 

336

411 

1,070 

347 

312 

279

255 

336 

259 

219 

195

182 

172 

162 

150 

142

138 

142 

145 

140 

138 

136

10,117

Suspended sediment

Mean 

concentration 

(ppm)

450 

600 

650 

400 

350

260

600 

250 

250

600 

600 

400

270 

790 

260 

200 

140

150 

170 

170 

160 

150

130 

120 

110 

110 

130 

130

Tuns 

per 

day

780 

1,010 

990 

550 

430

290 

el, 200 

930 

240 

230

e3,800 

e 36, 000 

560 

510 

300

190 

s760 

180 

120 

74

74 

79 

74 

65 

58

48 

46 

43 

42 

48 

48

49, 800

September

Mean 

discharge 

(secondfeet)

131

127 

120 

112 

108

103 

99 

95 

91 

89

88 

85 

82 

82 

82

81 

81 

79 

77 

114

201 

445 

505 

445 

383

301 

249 

206 

18,7 

173

5,021

Suspended sediment

Mean 

concentration 

(ppm)

120 

120 

110 

90 

90

90 

90 

90 

80 

90

100 

90 

130 

100 

110

110 

110 

110 

120

990 

1,500 

950 

600

300 

200 

150 

190 

150

Tons 

per 

day

42 

41 

36 

27 

26

25 

24 

23 

20 

22

24 

21 

29 

22 

24

24 

24 

23 

25

e48

e200 

si, 240 

2,050 

1,140 

620 

240 

130 

83 

96 

70

6,420

Total discharge for period May 24 to Sept. 30 (second-foot-days) 

Total load for period May 24 to Sept. 30 (tons) ................

66,766

490,900

e Estimated.

a Computed by subdividing day.
LITTLE SIOUX RIVER BASIN Continued 

LITTLE SIOUX RIVER AT CORRECT IONVILLE, IOWA Cont

Particle-size analyses of suspended sediment, May to Septemb

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

May 24, 1950 ............

July 6 ..................

July 12 .................

July 12 .................

July 12 ................

July 12 ................

July 14 .................

July 16 ................

July 17 ................

July 18 ................

July 20 .................

July 21 ................

July 24 ...............

July 26 ................

Aug. 8 .................

Aug. 8 .................

Aug. 12 ................

Sept. 22 ................

Sept. 23 ...............

Sept. 24 . ..............

Time

10:30 a.m. 

7:00 a.m. 

7:45 p.m. 

7:45 p.m. 

7:30 p.m.

7:00 a.m. 

9:10 a.m. 

9:10 a.m. 

4:25 p.m. 

7:00 a.m.

7:00 a.m. 

7:00 a.m. 

9:20 p.m. 

7:00 a.m. 

3:00 p.m.

12:55 p.m. 

6:55 p.m. 

5:05 p.m. 

5:05 p.m. 

7:00 a.m.

10:00 a.m. 

7:00 a.m. 

7:00 a.m. 

6:30 p.m. 

7:00 a.m.

Discharge 

(secondfeet)

439 

6,730 

6,360 

6,360 

236

2,400 

2,650 

2,650 

1,625 

640

1,280 

672 

1,240 

900 

1,580

1,805 

1,160 

395 

395 

1,200

655 

420 

505 

505 

460

Suspended sedim

Concentration 

of sample 

(ppm)

228 

13,800 

5,120 

5,120 

76

13,800 

16,200 

16,200 

8,920 

730

10, 500 

1,190 

3,310 

1,210 

2,420

1,950 

886 

601 

601 

6,720

3,440 

699 

1,720 

1,560 

830

Concentration 

of suspension 

analyzed 

(ppm)

700 

9,070 

4,760 

4,870 

700

10, 700 

7,060 

6,830 

17,800 

1,060

14, 300 

1,720 

4,880 

1,590 

9,340

3,190 

1,370 

1,230 

766 

4,360

1,930 

1,000 

2,640 

2,290 

1,180

Percent finer 

0.002

58 

34

30 

4

47 

35

0.004

39 

45 

71 

56 

45

37 

42 

11 

50 

65

41 

52 

43 

48 

35

24 

35 

68 

47 

46

50 

35 

55 

64 

60

0.008

83 

74

54 

26

71 

§7

0.016

58 

74

87 

75

63 

70 

61 

83 

89

77 

81 

67 

66 

58

59 

60 

86 

81 

80

85 

52 

83 

88 

84

0.0
MISSOURI RIVER BASIN

LITTLE SIOUX RIVER BASIN Continued 

LITTLE SIOUX RIVER NEAR KENNEBEC, IOWA

LOCATION. At gaging station at bridge on county road A, 1.3 miles south of Kennebec, 

Monona County, 5j miles northeast of Onawa, and 6J miles upstream fror Maple River.

DRAINAGE AREA. 2,730 square miles.

RECORDS AVAILABLE. Sediment records: May to September 1950.

EXTREMES, May to September 1950. Sediment concentrations: Maximum daily, 40,800 ppm

June 18; minimum daily, 90 ppm Sept. 19. 

Sediment loads: Maximum daily, 520,000 tons June 18; minimum daily, 27 tons Sept. 19.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in 

Water-Supply Paper 1176.

Suspended sediment, May to September 1950

Day

21 

22 ------ 

23 

24 

25 

26 

27 

28------ 

29 

30 ------ 

31 

TotalApril

Mean

charge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

May

Mean 

discharge 

(second - 

feet)

420 

398 

398

410 

386 

362 

410 

510 

328

3,622

Suspended sediment

Mean 

concentration 

(ppm)

1,300 

1,120 

1,020

800 

680 

550

1,660

--

Tons 

per 

day

1,470 

1,200 

1,100

890 

710 

540 

e8,200 

e 19, 000 

1,470

34,600

June

Mean 

discharge 

(second - 

feet)

283 

305 

316 

283 

247

235 

227 

210 

197 

176

167 

2,040 

1,120 

398 

931

643 

422 

4,650 

4,850 

1,850

1,700 

2,290 

2,050 

1,280 

998

866 

802 

680 

592 

522

31,330

Suspended sediment

Mean 

concentration 

(ppm)

920 

2,280 

1,520 

820 

600

510 

410 

380 

330 

360

310 

33, 200 

20, 900 

4,400 

29,600

13, 700 

2,000 

40, 800 

8,800 

5,000

5,800 

22,100 

28, 800 

7,900 

2,240

1,840 

1,390 

870 

560 

510

Tons 

per 

day

700 

1,880 

1,300 

630 

400

320 

250 

220 

180 

170 

140 

s 316, 000 

s 74, 800 

4,730 

s 122, 000

s 27, 800 

2,280 

s 520, 000 

s 121, 000 

25,000

26,600 

s 149, 000 

s 170, 000 

27,300 

6,040

4,300 

3,010 

1,600 

900 

720

1,609,000

e Estimated.

s Computed by subdividing day.
LITTLE SIOUX RIVER BASIN 299

LITTLE SIOUX RIVER BASIN Continued

LITTLE SIOUX RIVER NEAR KENNEBEC, IOWA~Continued

Suspended sediment, May to September 1950 Continued

Day

99

27

no

31 

TotalJuly

Mean

charge 

(secondfeet)

454 

402 

376 

340 

340

293 

260 

245 

251 

271

293 

1,410 

1,410 

620 

620 

1,030 

834 

930 

1,660 

1,140

,390 

,810 

,770 

,810 

,970.

,740 

,390 

1,250 

1,170 

930 

1,500

29,909

Suspended sediment

Mean 

concentration 

(ppm)

510 

480 

400 

320 

340

280 

250 

220

320

380 

20,400 

12,900 

3,600 

1,750 

5,000 

8,000 

4,080 

8,480 

3,600

3,520 

4,580 

3,250 

2,800 

3,000

3,250 

2,280 

1,350 

1,400 

1,260 

19,200

Tons 

per

day

630 

520 

410 

290 

310

220 

180 

150 

e!80 

230

300 

s 101, 000 

s 54, 300 

6,030 

2,930

13,900 

18,000 

si 1,200 

38,000 

11,100

13,200 

22,400 

15,500 

13,700 

16,000

15,300 

8,560 

4,560 

4,420 

3,160 

s 97, 100

473,800

August

Mean

charge 

(secondfeet)

725 

680 

665 

802 

578

536 

635 

680 

467 

402

376 

1,890 

650 

467 

402

364 

508 

428 

352 

304

282 

271 

271 

236 

219 

207 

201 

225 

 211 

203 

189

14,426

Suspended sediment

Mean 

concentration 

(ppm)

6,200 

3,100 

2,200 

11,000 

7,300

2,600 

4,520 

8,100 

2,000 

1,200

870 

27,400 

6,550 

1,800 

1,020

820

2,000 

860 

500

400 

380 

810 

470 

290

250 

250 

330 

260 

240 

250

Total discharge for period May 23 to Sept. 30 (second-foot-days) 

Total load for period May 23 to Sept. 30 (tons) .................

Tuns 

per

day

12,100 

5,690 

3,950 

23,800 

11,400

3,760 

s9, 510 

14,900 

2,520 

1,300

880 

s 154, 000 

s 12, 500 

2,270 

1,110

810 

e5,400 

2,310 

820 

410

300 

280 

590 

300 

170

140 

140 

200 

150 

130 

130

272, 000

September

Mean 

discharge 

(second' 

feet)

182 

180 

173 

162 

152

144 

138 

136 

133 

129

125 

125 

122 

121 

118

118 

117 

116 

113 

115

233 

225 

508 

564 

522

441 

352 

293 

260 

240

6,357

Suspended sediment

Mean 

concentration 

(ppm)

260 

230 

210 

180 

130

120 

130 

140 

140 

190

120 

90 

130 

140 

110

110 

110 

100 

90 

110

820 

1,680 

1,700 

1,220 

820 

550 

330 

290 

310

--

Tons 

peda^

130 

110 

98 

79 

53

47 

48 

51 

50 

66

41 

30 

43 

46 

35 

35 

35 

31 

27 

34

el, 200 

500 

2,310 

2,590 

1,720

980 

520 

260 

200 

200

11,570

85,644 

2,401,000

e Estimated.

s Computed by subdividing day.
LITTLE SIOUX RIVER BASIN Continued 

LITTLE SIOUX RIVER NEAR KENNEBEC, IOWA Conti

Particle-size analyses of suspended sediment, May to Septem

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Sept. 26 .................

Time

6:35 p.m. 

1:10 p.m. 

3:10 p.m. 

7:00 p.m. 

7:10 p.m.

8:00 a. m. 

10:00 a. m. 

2:45 p.m. 

3:55 p.m. 

3:55 p. m.

10:35 a. m. 

8:50 a.m. 

6:30 p.m. 

6:30 p. m. 

6:00 p. m.

5:50 p. m. 

7:10 a. m. 

6:10 p.m. 

11:35 a. m. 

6:40 a. m.

8:00 a. m. 

8:00 a.m. 

10:20 a.m. 

10:20 a. m. 

7:10 a.m.

9:00 a.m. 

11 -.05 a. m. 

6:15 p.m. 

5:50 p. m. 

6:25 p.m. 

6:30 a.m.

Discharge 

(secondfeet)

422 

4,330 

4,330 

3,460 

3S1

5,800 

6,080 

6,140 

6,080 

6,080

304 

1,100 

2,170 

2,170 

964

665 

1,740 

1,030 

1,850 

2,050

930 

930 

695 

695 

2,500

2,580 

2,460 

282 

550 

564 

454

Suspended sedim

Concentration 

of sample 

(ppm)

1,390 

74,400 

56, 600 

53,000 

1,880

60,800 

59,800 

34,700 

25,600 

25,600

291 

20, 500 

32,900 

32,900 

8,210

6,360 

9,600 

2,920 

3,950 

3,070

46,300 

46,300 

10,200 

10,200 

36,400

29, 100 

36,200 

1,780 

1,780 

1,650 

873

Concentration 

of suspension 

analyzed 

(ppm)

4,750 

15,780 

25,200 

14,430 

1,550

26,300 

23,300 

13,200 

14,000 

27,840

990 

16,700 

17,300 

32,270 

10,900

8,400 

13,000 

3,930 

6,030 

4,080

8,560 

15,300 

102,00 

9,690 

14,400

12,200 

14,300 

2,660 

2,750 

2,490 

1,420

Percent finer 

0.002

28 

2

27 

1

24 

1 

28

0.004

20 

28 

29 

38 

46

25 

28 

34

4

39 

30 

35 

2 

41

53 

26 

39 

28 

24

28 

3 

38 

2 

27

29 

28 

51 

29

41 

44

0.008

46 

9

45

4

36 

7 

51 

8

0.016

36 

52 

57 

70 

68

47 

52 

60 

59 

46

50 

59 

60 

31 

67

85 

46 

59 

45 

39

53 

40 

66 

?B 

49

49 

50 

77 

48 

63 

62

0.
PLATTE RIVER BASIN 301

PLATTE RIVER BASIN 

NORTH PLATTE RIVER NEAR GOOSE EGG, WYO.

LOCATION. One hundred feet upstream from gaging station, 100 feet west of State Highway 

220, 1 V3 miles downstream from Poison Spring Creek, 3 miles south .of Goose Egg, Natrona 

County, and 13 miles southwest of Casper. 

DRAINAGE AREA. 11,500 square miles. 

RECORDS AVAILABLE. Water temperatures: June to September 1950.

Sediment records: June to September 1950. 

EXTREMES, June to September 1950. Water temperatures: Maximum, 75°F Sept: 9; minimum,

47°F Sept. 30.

Sediment concentrations: Maximum daily, 12,900 ppm July 23; minimum daily, 5 ppm Aug. 15. 

Sediment loads: Maximum daily, 174,000 tons July 23; minimum daily, 10 tons Sept. 29, 30. 

REMARKS. Records of discharge for period May to September 1950 given in Water-Supply 

Paper 1176.

Temperature (°F) of water, June to September 1950 

/Once-daily temperature measurement at approximately 6 p. raj

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

2r

22

23

24

25

26

27

28

29

30

31

Average

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June

~

..

-.

--

--

--

._

63

62

~

July

61

61

62

61

61

..

62

65

66

--

61

63

64

--

61

60

63

62

66

62

58

64

61

66

64

62

61

63

62

Aug.

63

65

65

65

65

66

66

65

64

64

63

65

65

66

68

65

65

64

65

64

65

68

65

64

65

64

67

68

66

65

S'jpt.

68

68

68

68

..

66

75

60

58

61

60

52

61

60

64

64

57

59

63

60

60

58

56

56

47

61
302 MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued 

NORTH PLATTE RIVER NEAR GOOSE EGG, WYO. Continued

Suspended sediment, June to September 1950

Day

2

g

1Q

1ft

19

2290

25

etc

27

90

29

Total -

9

g

12

13

19

21

22

24 

25 

26 

27 

28 - 

29 

30 

31 ......

Total -

April

Mean

charge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

July

5,380 

5,400 

5,360 

5,420 

5,480

5,300 

4,850 

4,880 

4,900 

4,900

4,900 

4,900 

4,850 

4,780 

4,810

4,810 

4,670 

3,540 

3,420 

3,020 

3,120 

4,020 

5,000 

5,660 

6,110

5,630 

4,680 

4,400 

4,390 

4,400 

4,610

147, 590

75 

67

1,000 

500

65 

57 

51 

46

40 

40 

55

35 

20 

13 

14

7,700 

12,900 

3,530 

288

98 

72 

61 

61 

54 

50

--

1,090 

977 

e4,OQO 

s 15, 500 

7,400 

el, 600 

851 

752 

675 

609

529 

529 

720 

e750 

e600

eSOO 

442 

191 

120 

114 

e 7, 900 

83,600 

174,000 

54,000 

4,750

1,490 

909 

725 

723 

641 

622

367,300

May

Mean

charge 

(second - 

feet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

August

5,120 

5,140 

5,260 

5,540 

5,540

5,540 

5,540 

5,520 

5,380 

5,140 

5,150 

5,140 

5,100 

4,120 

3,640

3,740 

4,460 

4,970 

5,020 

5,000 

4,880 

4,700 

4,700 

4,710 

4,710

4,350 

3,820 

3,820 

3,820 

3,820 

3,900

147,290

46 

44 

41 

32 

36

28 

32 

28 

48 

25

30 

24 

24 

30 

5

14 

24 

18 

13 

10 

13 

15 

14 

19

14 

7 

14 

12 

9 

12

--

Total discharge for period June 28 to Sept. 30 (second-foot-days) 

Total load for period June 28 to Sept. 30 (tons) .................

636 

611 

582 

478 

538 

419 

478 

417 

697 

347

417 

333 

330 

334 

49

e70 

169 

322 

244 

175 

132 

165 

190 

178 

242

164 

72 

144 

124 

93 

126

9,280

June

Mean

charge 

(secondfeet)

5,060 

5,120 

5,340

15, 520

Susoended sediment

M?an 

concentration 

(pim)

58 

63 

71

Tons 

per

day

793 

871 

1,020

2,680

September

4,120 

4,130 

4,160 

4,250 

4,470

4,540 

4,540 

4,490 

4,210 

3,900

3,760 

3,350 

2,960 

2,080 

1,550

1,500 

1,390 

980 

954 

837 

417 

231 

196 

160 

140

120 

100 

85 

75 

70

63,765

18 

18 

18 

22

24 

24 

22 

18

15 

11 

12 

12 

30

21 

10 

12

1,090 

4,560 

451 

228

94 

148 

95 

53 

50 

51

200 

201 

202 

252 

e280

eSOO 

294 

291 

250 

190

152 

100 

96 

67 

126

85 

38 

32 

e30 

s2,850 

s6,430 

282 

121 - 

e55 

36

48 

26 

12 

10 

10

13, 070

................................... 374, 165

................................... 392,300

e Estimated.

s Computed by subdividing day.
PLATTE RIVER BASIN Continued 

NORTH PLATTE RIVER NEAR GOOSE EGG, WYO. Conti

Particle-size analyses of suspended sediment, July to Septem

(Methods of analysis: B, bottom withdrawal tube; D, decantation; p, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanicall

Date of collection

Sept. 21 .................

Time

6:50 p.m. 

5:00 p. m. 

7:30 a.m. 

6:00 p.m.

Discharge 

(secondfeet)

3,920 

1,080 

467 

284

Suspended sed

Concentration 

of sample 

(ppm)

4,920 

782 

7,100 

834

Concentration 

of suspension 

analyzed 

(ppm)

3,520 

388 

4,290 

500

Percent fine

0.002

46

0.004

56 

48 

76 

66

0.008

71

0.016

87 

96 

99 

79

0
304 MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued 

NORTH PLATTE RIVER BELOW CASPER, WYO.

LOCATION. At cableway 500 feet upstream from gaging station, 6i miles ea<3t of Casper,

Natrona County, and 7i miles downstream from Casper Creek. 

DRAINAGE AREA. 12,600 square miles. 

RECORDS AVAILABLE. Water temperatures: June 1949 to September 1950.

Sediment records: April 1947 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum 68°F July 28, Aug. 4; minimum, freezing

point on many days during December to February.

Sediment concentrations: Maximum daily, not determined; minimum daily, not determined. 

Sediment loads: Maximum daily, 150,000 tons July 24; minimum daily, less than 1 ton on 

many days. 

EXTREMES, 1947-50. Water temperatures (June 1949 to September 1950): Maximum, 72°F July

24, 1949; minimum, freezing point on many days during winter months. 

Sediment concentrations: Maximum daily, 26,200 ppm June 7, 1949; mininum daily, 1 ppm 

Oct. 3, Nov. 5, 1948. 

Sediment loads: Maximum daily, 269,000 tons July 11, 1949; minimum daily, less than 1

ton on many days each year.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in 

Water-Supply Paper 1176.

Temperature (°F) of water, water year October 1949 to September 1950

^Once-daily temperature measurement at approximately 6 p. m., except those Oct. 1 to Mar. 21 which were at

approximately 10 a. mj

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

Average

Oct.

66

66

66

66

66

64

60

54

58

60

60

60

60

60

60

60

60

60

54

42

40

44

44

50

61

59

57

52

48

46

50

57

Nov.

44

49

52

51

52

46

50

51

44

45

44

45

45

46

46

46

46

46

47

50

50

43

44

40

38

41

46

42

38

43

--

46

Dec.

44

44

40

--

..

_

_

..

--

Jan.

..

_

--

_

--

_

36

36

37

34

..

--

Feb.

_

32

32

32

40

40

38

40

40

40

36

36

40

40

38

44

40

45

43

40

38

40

40

42

42

39

--

39

Mar.

45

38

42

46

48

42

38

38

40

42

38

34

38

40

43

47

44

42

43

44

44

46

46

48

48

46

48

48

48

50

52

44

Apr.

..

45

45

50

52

60

56

56

50

46

48

54

56

56

58

61

56

52

52

54

56

58

57

48

54

52

43

40

36

40

51

May

54

48

48

46

48

48

45

44

50

52

60

62

62

64

57

54

57

53

54

55

59

61

57

42

47

54

48

42

52

57

48

53

June

58

52

54

56

66

54

48

48

58

62

62

62

63

60

62

56

56

57

56

60

63

63

63

63

63

64

62

60

60

62

--

59

Jul/

62

62

63

63

64

63

64

64

66

66

66

66

66

66

65

62

64

64

64

64

64

62

60

64

63

67

67

68

67

67

64

64

Aug.

67

65

65

68

65

60

66

66

64

64

64

63

65

65

67

64

67

65

62

63

67

66

65

66

65

67

67

64

65

66

--

65

Sept.

57

67

67

67

65

65

65

64

63

57

55

60

59

59

53

58

60

64

64

58

63

64

63

58

66

62

61

58

52

52

61
PLATTE RIVER BASIN 

PLATTE RIVER BASIN Continued

NORTH PLATTE RIVER BELOW CASPER, WYO. Continued 

Suspended sediment, water year October 1949 to September 1950

305

Day

1 ......

2 ......

g __ _

4 

5 ......

6 ......

7 - 

8 ______

9 ......

10 ...

11 ......

12 -

J3 ___ _

14 -... 

15 

16 

17 

lo------ 1 A

19 ......

20 

21 

22------

23 

24 

25 

26 -jf 

27 =

OQ£O------

29 

30 ------

31 

Total1 

2- 

3_ _ _ _

4 -

5 

7 

. ---

9 

10 

11 

12 

13 __ _

14 

15 ......

16 

17 

1 1O------ o

19 .

20 

21 ...... 

22 ------

23 

24 

25 

28 ----- - 

27 - 

28 

29 

30 ------ 

31 

TotalOctober |

Mean

discharge 

(secondfeet)

226 

182 

166 

154 

141

138 

144 

158 

141 

129 

120 

114 

111 

114 

108

102 

102 

99 

99 

105

108 

105 

99 

96 

93 

96 

93 

90 

88 

90 

88

3,699

68 

56 

40 

46 

50

52

54 

58 

54 

54

54 

53 

52 

50 

48

50 

48 

52 

58 

62

62 

60 

54 

50 

46 

48 

46 

44 

44 

46 

47

1,606

Suspended sediment

Mean 

concentration 

(ppm)

2

5 

5 

3 

5

5 

17 

15

6 

5

3 

4 

4

3

8 

9

3

-

Tons 

per 

day

1 

2 

2 

1 

2

2 

7 

6 

2 

2

1 

1 

1

(t)

2

3

(t)

48

January

5

11 

13 

22 

11 

14

el 

(t)

el

e2

2 

2 

3 

1 

2

el

39

November

Mean

discharge 

(second - 

feet)

82 

85 

85 

82 

80

80 

80 

80 

80 

75

72 

75 

70 

70 

72

72 

72

72 

72 

72

75 

75 

75 

75 

78

72 

72

72 

72 

72

2,266

Suspended sediment

Mean 

concentration 

(ppm)

6

23 

8 

6

5

5 

8 

10 

11 

30

24 

18 

15 

7 

11

--

Tons 

per 

day

1

5 

2

1

1

1 

2 

2 

2 

6

5 

4 

3 

1 

2

53

February

50 

56 

60 

68 

70

64 

62 

60 

58 

72

78 

75 

70 

72 

70

72 

78 

68 

72 

75

80 

65 

70 

72 

70 

70 

68 

70

1,915

4

13 

21 

23

12

10

9 

14

8

5

6

"

(t) 

el 

2 

4 

4

2 

2 

el 

1 

3

2 

e2

1 

1

41

December

Mean

discharge 

(secondfeet)

72 

72 

68 

63 

72

59 

59 

70 

65 

75

68 

60 

60 

60 

64

66 

64 

66 

64

54

54 

58 

60 

58 

54

58 

64 

66 

68 

68 

66

1,975

Suspended sediment

Mean 

concentration 

(ppm)

8 

7 

10

Tonf 

per 

day

. 2 

1 

2

e2 

el

49

March

72 

68 

65 

63 

61

59 

59 

65 

68 

65

57 

53 

55 

53 

57 

61 

63 

61 

65 

70 

65 

63 

57 

55 

55

53 

55 

63 

61 

57 

51

1,875

6

5

9 

15 

17

15

5

5

--

1

(t)

1 

2 

3

2

(t)

(t)

31

e Estimated.

t Less than 1 ton.
306 MISSOURI RIVER BASIN 

PLATTE RIVER BASIN Continued

NORTH PLATTE RIVER BELOW CASPER, WYO. Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

19

22

24

25

OR

no

29

31 

Total -

o

o

22

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

53 

51 

93 

182 

126

88 

72 

99 

208 

204

166 

138 

111 

99 

102

117 

111

96 

90 

90

82 

72 

324 

400 

684 

1,220 

1,880 

.2,030 

1,140 

612

10,740

Suspended sediment

Mean 

concentration 

(ppm)

4

5

350

140 

32

115

112 

21 

22 

19 

23

32 

40 

42 

27 

17

8 

48 

314

591

1,180 

1,400 

718 

328 

104

Tons 

per 

day

(t) 

(t) 

e44 

e!90 

119

33 

6 

e!2 

e!30 

63

50 

8 

7 

5 

6

10 

12 

11

7 

4

2 

9 

S294 

e240 

si, 280

3,890 

7,110 

3,940 

si, 080 

172

18,730

July

5,320 

5,400 

5,420 

5,490 

5,400

5,380 

4,960 

4,940 

4,980 

4,980

4,980 

4,980 

5,000 

4,920 

4,900

4,900 

4,940 

3,990 

3,720 

3,230

3,120 

3,660 

4,660 

5,280 

5,910

5,930 

4,960 

4,560 

4,520 

4,480 

4,500

149,410

170 

134 

107 

1,950 

1,070 

385 

114 

101 

113 

77 

58 

37 

46 

77 

63

56 

45 

38 

42 

43 

49

450 

156 

104 

67 

64 

64

--

2,440 

1,950 

1,570 

28,900 

15,600

5,590 

1,530 

1,350 

1,520 

1,040

780 

498 

621 

1,020 

834

714 

601 

409 

422 

375

413 

e 22, 000 

e 59, 000 

B 150, 000 

e 51, 000

7,200 

2,090 

1,280 

818 

774 

778

363, 100

Total discharge for year (second-foot-day 

Total load for year (tons) ...............

May

Mean

charge 

(secondfeet)

580 

564 

572 

612 

997

817 

612 

512 

334 

260

226 

204 

204 

270 

1,270

2,500 

2,600 

2,630 

2,630 

2,660

2,640 

2,660 

3,110 

3,840 

4,240

3,210 

3,090 

3,090 

2,600 

2,290 

2,020

53,644

Suspended sediment

Mean 

concentration 

(ppm)

106 

99 

119 

198

375 

253 

462 

207 

112

69 

73 

85

839

819 

440 

409 

305 

254

205 

202 

610 

493 

346

158 

57 

53 

46 

44 

39

~

Tons 

per 

day

166 

151 

184 

327 

e850

827 

418 

639 

187 

79

42 

40 

47 

e260 

S3.550

5,530 

3,090 

2,900 

2,160 

1,820

1,460 

1,450 

5,120 

5,110 

3,960

1,370 

476 

442 

323 

272 

213

43,460

August

5,100 

5,140 

5, 16'0 

5,440 

5,490

5,510 

5,530 

5,530 

5,490 

5,200

5,180 

5,180 

5,180 

4,500 

4,010

3,700 

4,080 

4,540 

4,680 

4,700

4,740 

4,540 

4,520 

4,540 

4,540

4,500 

3,930 

3,910 

3,890 

3,890 

3,890

146,230

93 

69 

81 

86 

90

72 

61 

55 

55 

41

28 

33 

32 

21 

29

30 

37 

39 

32 

42

45 

38 

41 

42 

36

28

19 

17 

12

--

1,280 

958 

1,130 

1,260 

1,330

1,070 

911 

820 

816 

576

392 

462 

448 

255 

314 

300 

407 

478 

404 

533

576 

466 

500 

515 

442

340 

e240 

200 

178 

126 

e!20

17, 850

June

Mean

charge 

(secondfeet)

2,010 

2,020 

2,010 

1,960 

1,920

1,900 

1,930 

1,930 

1,930 

2,400

3,280 

4,010 

4,540 

4,580 

4,620

5,020 

5,000 

5,340 

5,260 

4,660

3,890 

3,480 

3,500 

4,220 

4,560

4,640 

4,940 

5,000 

5,080 

5,220

110,850

Suspended sediment

Mean 

concent-ation 

(ppm)

34 

31 

21 

22 

21

34 

53

67 

69

237

304 

217 

222

240 

223 

234 

196 

81

38 

26 

54 

60 

55

43 

64 

74 

64 

145

-

Tons 

per 

day

185 

169 

114 

116 

109

174 

276 

349 

360 

e 1, 100

2,100 

e4,400 

3,730 

2,680 

2,770

3,250 

3,010 

3,380 

2,780 

1,020

399 

244 

510 

684 

677

529 

<%54 

999 

878 

2,040

39,900

September

4,040 

4,010 

4,010 

4,040 

4,300

4,360 

4,360 

4,380 

4,260 

3,970 

3,930 

3,480 

3,210 

2,460 

1,720

1,480 

1,450 

1,170 

1,090 

979

853 

382 

302 

245 

199

178 

158 

150 

147 

144

65,457

28 

30 

28 

25 

68

40 

35 

31

25 

25

21 

20 

16 

14 

22

25 

14 

10 

20 

103

670 

300 

138 

86

52 

28 

20 

20 

11

--

306 

325 

303 

273 

789

471 

412 

366 

288 

268

223 

188 

139 

93 

102

100 

55 

32 

59 

272

e4,300 

691 

244 

91 

46

25 

12 

8 

8 

4

10,490

........................................................ 493, 800

e Estimated.

s Computed by subdividing day.

t Less than 1 ton.
PLATTE RIVER BASIN Continued 

NORTH PLATTE RIVER BELOW CASPER, ¥YO. Contin

Particle-size analyses of suspended sediment, April to Septem

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Sept. 21 .................

Time

2:20 p. m. 

1:57 p.m. 

5:00 p.m.

Discharge 

(secondfeet)

1,980 

580 

684

Suspended sedim

Concentration 

of sample 

(ppm)

1,400 

105 

1,060

Concentration 

of suspension 

analyzed 

(ppm)

3,340 

334 

472

Percent finer 

0.002

45

0.004

54 

38 

8

0.008

73 

80

0.016

82 

94 

25

0.
308 MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued 

NORTH PLATTE RIVER ABOVE BEDTICK CREEK NEAR DOUGLAS, WYO.

LOCATION.--At county highway bridge, 1 mile upstream from Bedtick Creek, 2i miles south of

Douglas, Converse County, and 24 miles upstream from gaging station neir Douglas. 

DRAINAGE AREA. 14,300 square miles (above gaging station). 

RECORDS AVAILABLE. Water temperatures: June 1949 to September 1950.

Sediment records! April 1947 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum, 80*F July 15; minimum, freezing point '

on many days during December to April.

Sediment concentrations: Maximum daily, 3,000 ppm July 25; minimum daily, not determined. 

Sediment loads: Maximum daily, 43,800 tons July 25; minimum daily, not determined. 

EXTREMES, 1947-50. Sediment concentrations: Maximum daily, 18,700 ppm July 12, 1949; 

minimum daily, not determined. 

Sediment loads: Maximum daily, 349,000 tons July 12, 1949; minimum daily, less than

1 ton Jan. 11-12, 1949.

REMARKS. Discharge records for gaging station near Douglas for water year October 1949 

to September 1950 given in Water-Supply Paper 1176. No appreciable inflow between 

sampling point and gaging station except during periods of heavy local runoff.

Temperature (°F) of water, water year October 1949 to September 1950 

nee-daily temperature measurement at approximately 5 p.mj

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

Average

Oct.

56

64

62

52

45

43

52

43

54

40

39

54

55

45

49

45

40

31

39

32

34

42

44

52

32

31

40

47

45

Nov.

50

46

48

41

44

43

50

45

45

43

43

44

42

44

47

43

47

45

45

43

45

42

45

45

47

45

45

43

42

42

--

45

Dec.

41

40

38

32

32

38

32

32

32

..

~

_

~

Jan.

_

..

32

32

_

~

..

..

~

_

Feb. Mar.

_

32

48

_

32

32

..

..

32

32

.40

45

_

50

"

_

38

..

~

Apr.

..

40

38

38

36

46

38

32

34

38

64

60

61

64

65

56

62

64

68

58

61

56

40

48

44

38

40

50

May

52

52

46

36

47

42

44

46

53

57

60

60

64

65

62

63

62

62

55

55

60

63

60

52

46

49

55

50

56

55

56

54

June

60

57

60

64

58

58

63

68

67

65

66

64

60

65

60

62

65

64

67

69

69

63

68

66

64

67

65

~

64

July

6->

61

63

es

64

71

6<J

71

717'

7<

6->

716">

81

6^

6*

6*

71

W

71

63

67

6-<

6-5

636->

71

63

63

6S

6->

Aug.

69

71

69

68

66

68

69

66

66

68

65

68

68

71

71

72

70

61

60

65

69

66

66

66

68

68

65

70

62

64

67

Sept.

65

67

63

69

70

72

70

69

62

59

53

57

57

57

56

55

56

67

63

55

62

64

62

64

66

68

55

57

50

55

61
PLATTE RIVER BASIN 309

PLATTE RIVER BASIN Continued

NORTH PLATTE RIVER ABOVE BEDTICK CREEK NEAR DOUGLAS, WYO.--Continued 

Suspended sediment, water year October 1949 to September 1950

Day

Q

12

18

20

21

99

23

9ft

9ft

9Q

31 

TotalQ

12

13

18

22 ------ 

23 ------ 

24 ------ 

25 

26 ------ 

27 ------ 

28 

29 ------ 

30 ... 

31 ------ 

TotalOctober

Mean

charge 

(secondfeet)

480 

410 

374 

338 

321

304 

307 

307 

304 

291 

267 

252 

255 

252 

240

231 

222 

231 

249 

240

240 

246 

246 

240 

237

237 

231 

228 

222 

216 

210

8,428

Suspended sediment

Mean 

concentration 

(ppm)

26 

25 

22 

17 

11

!'

7

25

30 

37

35

13 

8

8

-

Tons 

per 

day

34 

28 

22 

16 

10

12

5

16 

20 

24

23 

e!8 

9 

5

e5

5

355

January

135

105 

85 

90 

100

110 

120 

130 

125 

125

135 

120 

115 

125 

120 

125 

125 

115 

135 

170 

220 

240 

230 

225 

180 

155 

180 

190 

160 

150 

150

4,490

8

_

2 

e3

' e8

150

November

Mean

charge 

(secondfeet)

208 

200 

195 

198 

198

198 

195 

192 

190 

188

185 

180 

175 

175 

180

178 

175 

172 

170 

165

162 

162 

165 

165 

165

160 

162 

160 

156 

150

5,324

Suspended sediment

Mean 

concentration 

(ppm)

1 - 

10 

16

1"

14

-

Tons 

per 

day

8 

5 

5 

7 

9 

6

200

February

155 

160 

170 

180 

190

165 

175 

165 

170 

175

185 

180 

175 

175 

170 

190 

190 

215 

235 

200

190 

190 

200 

210 

225

222 

192 

178

5,227

} - 

);;

e6

e5

e4 

e!4

190

December

Mean

charge 

(secondfeet)

160 

156 

148 

125 

130

120 

114 

104 

142 

185

120 

110 

105 

110 

125

120 

115 

120 

130 

115

115 

120 

130 

120 

115

130 

140 

150 

160 

140 

130

4,004

Suspended sedinent

Mean 

concentration 

(ppm)

16

} »

42

--

Tons 

per 

day

6

4

16 

e24

e5

e4

W

March

170 

182 

170 

168 

158

156 

150 

145 

165 

180

150 

125 

115 

135

170

190 

210 

180 

195 

190 

200 

225 

220 

245 

260

235 

225 

205 

215 

220 

215

5,769

I 26 12 

e!2

e!6

e!7 

elt

44T

e Estimated.
MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued

NORTH PLATTE RIVER ABOVE BEDTICK CREEK NEAR DOUGLAS, WYO>. Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

2

OA

22

oq

25

27

OQ

29

31 

Total2

Q

12

i n

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

225 

220 

235 

255 

276

328 

255 

246 

610 

768

568 

414 

356 

318 

418

515 

450 

442 

500 

402

342 

342 

328 

434 

761

768 

1,310 

1,920 

2,120 

1,450

17, 576

Suspended sediment

Mean 

concentratipn 

(ppm)

| 32

114 

187

46 

21 

50 

146 

249

108 

50 

31 

148 

244

124 

42 

28 

30 

35

39 

57 

42 

50 

108

135 

467 

970 

1,150 

527

Tons 

per 

day

20

78 

139 

41 

14 

33 

240 

516

s!78 

56 

30 

127 

275

172 

51 

33 

40 

38

36 

53 

37 

59 

222

280 

si, 710 

5,030 

6,580 

s2,250

18,380

July

5,190 

5,160 

5,280 

5,330 

5,410

5,050 

4,990 

4,660 

4,640 

4,760

4,760 

4,740 

4,780 

4,780 

4,720 

4,700 

4,720 

4,680 

3,710 

3,560 

3,120 

3,100 

4,400 

5,050 

5,410

5,840 

4,920 

4,540 

4,380 

4,300 

4,340

145, 020

390 

355 

420 

810 

2,180

1,200 

600 

780 

360 

260

310 

302 

295 

265 

335

315 

311 

282 

155 

150 

105 

144 

355 

662 

3,000

1,300 

740 

342 

214 

177 

182

5,470 

4,950 

5,990 

11,700 

31,800

16,400 

8,080 

9,810 

4,510 

3,340

3,980 

3,860 

3,810 

3,420 

4,270

4,000 

3,960 

3,560 

1,550 

1,440 

885 

1,210 

s4,380 

9,030 

43,800

20, 500 

9,830 

4,190 

2,530 

2,050 

2,130

236, 400

Total discharge for year (second-foot-day: 

Total load for year (tons)

May

Mean

charge 

(secondfeet)

917 

908 

803 

803 

953

1,130 

1,330 

998 

935

719

562 

500 

490 

525 

628

1,660 

3,010 

3,120 

3,180 

3,180

3,170 

3,080 

3,100 

3,500 

4,320

4,400 

3,620 

3,560 

3,500 

2,970 

2,700

64,271

Suspended sediment

Mean 

concentration 

(ppm)

160 

132 

119 

114 

148 

164 

248 

195 

172 

170

182 

64 

64 

72 

104

569 

1,120 

860 

650 

545 

385 

340 

345 

510 

880

930 

480 

370 

385 

260 

160

Tons 

per 

day

396 

324

258 

247 

381

s533 

891 

525 

434 

330

276 

86 

85 

102 

176

S3, 050 

9,100 

7,240 5,580" 

4,680 

3,300 

2,830 

2,890 

4,820 

10,300

11,000 

4,690 

3,560 

3,640 

2,080 

1,170

84,970

August

4,680 

5,100 

4,990 

5,100 

5,360

5,380 

5,380 

5,330 

5,330 

5,240

4,960 

4,940 

4,880 

4,840 

4,210

3,770 

3,660 

4,210 

4,600 

4,680 

4,700 

4,680 

4,600 

4,420 

4,400

4,400 

4,280 

3,820 

3,780 

3,760 

3,710

143,190

210 

220 

202 

275 

295

472 

320 

280 

316 

328

320

354 

218 

172

140 

100 

232 

136 

166 

136 

150 

132 

202 

80

106 

120 

119 

121 

140 

216

--

2,650 

3,030 

2,720 

3,790 

4,270

6,860 

4,650 

4,030 

4,550 

4,640 

4,290 

e4,000 

4,660 

2,850 

1,960

1,430 

988 

2,640 

1,690 

2,100 

1,730 

1,900 

1,640 

2,410 

950

1,260 

1,390 

1,230 

1,230 

1,420 

2,160

85, 120

June

Mean

charge 

(secondfeet)

2,450 

2,430 

2,480 

2,440 

2,360

2,310 

2,310 

2,350 

2,380 

2,330

2,710 

3,470 

4,010 

4,480 

4,540

4,640 

5,100 

5,950 

5,750 

5,610

4,660 

3,800 

3,620 

3,590 

4,190

4,460 

4,580 

4,840 

4,920 

5,050

113,810

Suspended sediment

Mean 

concent'ation 

(ppm)

100

100 

95

85 

103 

100 

75

145 

205 

310 

430 

395

330

440

750 

1,840 

630 

320 

220 

225 

390

460 

340 

300 

195 

310

Tons 

per 

day

662 

e600 

670 

626 

e550 

e550 

530 

654 

643 

472

1,060 

1,920 

3,360 

5,200 

4,840

4,130 

6,060 

e24,000 

11,600 

27,900

7,930 

3,280 

2,150 

2,180 

4,410

5,780 

4,200 

3,920 

2,590 

4,230

136,700

September

3,760 

3,950 

3,950 

3,920 

3,980

4,190 

4,230 

4,180 

4,250 

4,090

3,900 

3,780 

3,340 

3,140 

2,500

1,980 

1,740 

1,670 

1,440 

1,360 

1,400 

1,130 

754 

556 

505

450 

422 

410 

390 

378

71,745

286 

140 

195 

170 

195

150 

170 

195 

288 

230

115 

160 

141 

120 

58

39 

55 

37 

23 

210

209 

126 

232 

94

51 

33 

33 

33 

25

3) ..................................................

2,900 

1,490 

2,080 

1,800 

2,100

1,700 

1,940 

2,200 

3,300 

2,540

1,210 

1,630 

1,270 

1,020 

392 

208 

258 

167 

89 

771 

e4,400 

638 

257 

348 

128

62 

38 

37 

35 

26

35,030

588, 854 

598, 100

e Estimated.

s Computed by subdividing day.
PLATTE RIVER BASIN Continued 

NORTH PLATTE RIVER ABOVE BEDTICK CREEK NEAR DOUGLAS, WYO

Particle-size analyses of suspended sediment, April to Septemb

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

July 4 ................

Time

7:40 a.m. 

12:45 p.m. 

4:00 p.m. 

1:30 p.m.

7:45 p.m. 

7:45 p.m. 

6:25 p.m. 

9:45 a.m.

Discharge 

(secondfeet)

1,960 

3,200 

4,720 

5,610

5,280 

5,640 

5,860 

1,230

Suspended sedi

Concentration 

of sample 

(ppm)

1,350 

636 

935 

2,120

1,580 

4,880 

9,850 

155

Concentration 

of suspension 

analyzed 

(ppm)

4,200 

1,260 

1,070 

2,730

1,030 

3,600 

3,900 

1,400

Percent finer 

0.002

42 

29

67

0.004

59 

23 

35 

38

69 

52 

66 

77

0.008

71 

46

85

0.016

83 

33 

60 

54

86 

74 

93 

94

0
312 MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued 

NORTH PLATTE RIVER NEAR CASSA, WYO.

LOCATION. Four hundred feet upstream from gaging station which is li miles south of Cassa, 

Platte County, 4i miles downstream from Horseshoe Creek, and 6 miles upstream from high 

waterline of Guernsey Reservoir. 

DRAINAGE AREA. 15,700 square miles. 

RECORDS AVAILABLE. Water temperatures: June 1949 to September 1950.

Sediment records: March 1947 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum, 78°F July 11; minimum, freezing point on

many days during December to March.

Sediment concentrations: Maximum daily, 4,460 ppm July 26; minimum daily, not determined. 

Sediment loads: Maximum daily, 66,800 tons July 26; minimum daily, not determined. 

EXTREMES, 1947-50. Water temperatures (June 1949 to September 1950): Maximum, 78°F July

11, 1950; minimum, freezing point on many days during December to March. 

Sediment concentrations: Maximum daily, 10,500 ppm July 13, 1949; minimum daily, not

determined.

Sediment loads: Maximum daily, 121,000 tons July 13, 1949; minimum daily, not determined. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in 

Water-Supply Paper 1176.

Temperature (°F) of water, water year October 1949 to September 1950 

^Once-daily temperature measurement at approximately 5 p.

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

Average

Oct.

59

58

62

60

59

57

50

47

51

45

42

51

50

54

53

52

53

38

41

47

47

50

54

40

49

41

47

42

47

50

Nov.

47

48

48

47

49

40

46

43

39

. 46

42

47

46

43

41

42

35

34

38

39

35

35

35

42

43

39

47

38

34

35

41

Dec.

35

38

34

33

37

33

31

31

32

35

_

_

_.

--

_-

_.

_

Jan.

..

32

"

_

32

..

32

--

32

32

32

32

32

32

35

35

32

35

32

_

Feb.

_.

32

32

32

32

32

-

32

32

33

--

_

35

35

~

35

35

40

45

35

_

_

Mar.

38

35

45

--

_

32

32

_

32

_

32

--

45

35

40

_

35

45

45

..

45

48

50

~

Apr.

_

35

40

60

55

60

50

60

48

58

50

60

60

45

45

"

60

63

45

50

43

50

48

~

May

43

50

48

40

46

60

46

48

53

55

61

64

65

64

63

67

66

65

57

65

65

70

66

56

54

50

54

66

61

57

60

58

June

64

56

~

..

67

71

71

60

71

72

63

66

64

65

68

68

64

70

73

69

68

68

69

70

70

July

71

72

73

73

69

72

73

73

73

75

78

75

61

74

74

66

66

72

74

72

70

74

72

72

68

72

69

71

71

71

63

72

Aug.

70

66

69

72

69

..

64

72

69

69

64

71

67

71

73

68

67

69

65

61

69

68

62

69

63

67

66

62

59

63

72

67

Sept.

76

68

73

66

71

72

73

71

67

62

55

56

54

54

57

56

58

59

64

59

56

65

64

57

56

62

58

58

54

58

62
PLATTE RIVER BASIN

PLATTE RIVER BASIN Continued

NORTH PLATTE RIVER NEAR CASSA, WYO.--Continued

Suspended sediment, wtter year October 1949 to September 1950

313

Day

2 ...

1ft

19

40

**5

97

Oft

29

31 

TotalQ

Q

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

October

Mean

charge 

(secondfeet)

744 

610 

521 

468 

425

395 

395 

390 

385 

380

370 

345 

330 

335 

335

315 

305 

300 

375 

370

335 

330 

335 

330 

320

305 

300 

290 

285 

285 

280

11,488

Suspended sediment

Mean 

concentration 

(ppm)

37 

28 

15 

12 

13

. 12 

8

r 

23 } ::

1,030

240 

137 

107 

138 

68 

32

1 -

~

Tons 

per 

day

74 

46 

21 

15 

15

13 

8

4 

21

8

e350 

1,030

217 

122 

97 

123

54

26 

11

2,360

January

150 

155 

120 

105 

110

120 

135 

140 

145 

140 

140 

145 

130 

130 

140

135 

135 

130 

140 

160 

180 

200 

230 

240 

230 

190 

175 

200 

200 

180 

165

4,895

} 

13

} -

21

} '

12

> 36

32

~

e8 

4

5

8

8 

6 

23

16

307

November

Mean

charge 

secondfeet)

276 

271 

271 

266 

266

266 

266 

262 

258 

258

253 

258 

248 

244 

248 

253 

248 

248 

244 

240

235 

235 

235 

235 

231

231 

231 

231 

231 

231

7,470

Suspended sediment

Mean 

concentration 

(ppm)

30

9 

25

5

--

Tons 

per 

day

22

15 

6

17 

3

353

February

170 

175 

185 

195 

200

200 

195 

205 

185 

195 

200 

210 

195 

190 

185

190 

210 

230 

240 

250 

230 

220 

230 

250 

265 

270 

250 

230

5,950

22

17 

12

1- 

] 

63

106

18

11 

9 

6

8

4

e20

45 

77 

e40 

11

375

December

Mean

charge 

'secondfeet)

223 

227 

231 

219 

171

187 

167 

171 

138 

183

220 

150 

130 

125 

130 

135 

130 

130 

135 

140

135 

135 

140 

150 

140

155 

170 

180 

185 

190 

160

5,082

Suspended sediment

Mean 

concentration 

(ppm)

"

44

Tons 

per 

day

9

20

e24 

e!6 

elO

e8 

elO

360

March

230 

227 

262 

227 

227

215 

195 

171 

195 

220 

187 

160 

145 

170 

190 

210 

230 

240 

225 

230 

230 

240 

250 

260 

290 

270 

2CO 

240 

220 

230 

225

6,871

22

13

18 

40

} »

8 

7

14

7

10

26 

8

6

4

251
314 MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued 

NORTH PLATTE RIVER NEAR CASSA, WYO. Continued 

Suspended sediment, water year October 1949 to September 1950 Continuec'

Day

1 

2------

3_-..._

4 

5 ......

6 

7 . 

£[---.-.__

9 

10 ----- -

11 

194------

13------

14 ......

15 

16 

17 

into------ 

19 ......

20 

21 

22 

23------

24------

25 

26 --->---

27 

Zo------ no

29 ----- -

30 

31 

Total1 

2-----~

g_ _ __

4 ...

5 ...

7 

8------

9 

10 

11 

12------

13 ------

14 ...

15 

16------

17 

1Q____ __

19 

On 6\J-' ---

21 

22 

23 

24-- 

25 

26 

27 

28 

29 - 

30 

31 ......

TotalApril

Mean

discharge 

(secondfeet)

240 

235 

253 

240 

290

355 

410 

375 

355 

696

841 

673 

552 

509 

503

652 

805 

728 

728 

760

666 

578 

552 

571 

673

940 

950 

1,540 

2,220 

2,270

21,160

Suspended sediment

Mean 

concentration 

(ppm) } :

85 

122 

103

530 

615

255

38 

37

151 

214 

94 

84

40 

27 

30

84

97 

70

1,310 

1,000

Tons 

per 

day

22

e50

81 

135 

104 

e!50 

996 

1,400 

463 

el30 

52 

50 

s287 

465 

185 

126 

el40

72 

42 

45 

e60 

116

246 

180 

e3,300 

7,850 

6,130

22,940

July

4,930 

5,060 

5,240 

5,390 

5,420

5,350 

5,220 

4,970 

4,730 

4,750 

4,850 

4,690 

4,690 

4,730 

4,630

4,630 

4,630 

4,670 

4,280 

3,660

3,410 

3,180 

3,350 

4,360 

4,970 

.5,550 

5,720 

4,930 

4,510 

4,340 

4,280

145, 120

310 

290 

880 

620 

770

1,700 

1,050 

570 

370 

270 

340 

355 

270 

250 

260

220 

170 

110 

105 

80

55 

205 

180 

780 

1,900

4,460 

1,100 

930 

450 

298 

270

4,130~ 

3,960 

12,500 

9,020 

11,300

24,600 

14,800 

7,650 

4,730 

3,460

4,450 

4,500 

3,670 

3,190 

3,250

2,750 

2,130 

1,390 

1,210 

791

506 

1,760 

1,630 

s9,380 

25, 500 

66, 800 

17,000 

12,400 

5,480 

3,490 

3,120

270, 500

Total discharge for year (second-foot-day 

Total load for year (tons) ...............

May

Mean

discharge 

(secondfeet)

1,590 

1,130 

1,050 

1,060 

1,130

1,280 

1,590 

1,680 

1,460 

1,310

1,070 

920 

832 

805 

850 

1,110 

2,370 

3,390 

3,540 

3,580

3,520 

3,470 

3,350 

3,530 

4,110

4,670 

4,360 

3,850 

3,790 

3,640 

3,240

73,277

Suspended sediment

Mean 

concentration 

(ppm)

480 

215 

140 

145 

165

265 

433 

960 

745 

220

155 

140 

80 

50 

55

220 

1,120 

1,380 

1,080 

930

640 

495 

405 

450 

700

1,350 

925 

585 

380 

330 

210

Tons 

per 

day

2,060 

656 

397 

415 

503

916 

s2,010 

4,350 

2,940 

778

448 

348 

180 

109 

126

6659 

s 8, 120 

12,600 

10, 300 

8,990

6,080 

4,640 

3,660 

4,290 

7,770

17, 100 

10,900 

6,080 

3,890 

3,240 

1,840

126,400

August

4,260 

4,650 

4,850 

4,890 

5,060

5,220 

5,220 

5,260 

5,260 

5,300 

5,110 

5,020 

5,000 

4,930 

4,770

4,110 

3,710 

3,880 

4,470 

4,790

4,810 

4,810 

4,690 

4,570 

4,570 

4,590 

4,570 

4,240 

3,960 

3,920 

3,880

144,370

268 

210 

225 

210 

275

278 

180 

110 

165 

233 

205 

275 

163 

126

100 

90 

126 

184 

210

321 

250 

142 !-

I 80

3,080 

2,640 

2,950 

2,770 

3,760 

e4,500 

3,920 

2,560 

1,560 

2,360

3,210 

2,780 

3,710 

2,170 

1,620

1,110 

902 

1,320 

2,220 

2,720

4,107 

3,250 

1,800

1,190 

884

69,300

June

Mean

discharge 

(secondfeet)

2,820 

2,640 

2,680 

2,730 

2,680

2,530 

2,430 

2,370 

2,460 

2,390

2,480 

3,070 

3,830 

4,300 

4,490

4,450 

4,730 

5,690 

5,510 

5,720

4,970 

4,280 

3,680 

3,520 

3,810

4,260 

4,420 

4,610 

4,730 

4,830

113,110

Suspended sediment

Mean 

concent-ation 

(ppm)

150 

110 

150 

132 

102

75 

53 

35 

32 

43

41 

210 

370 

550 

520

520 

475 

2,370 

2,300 

1,460

1,380 

710 

300 

290 

250

265 

385 

240 

300 

310

--

Tons 

per 

day

1,140 

784 

1,090 

973 

738

512 

348 

224 

213 

277

275 

1,740 

3,830 

6,390 

6,300

6,250 

6,070 

838,900 

34,200 

22, 500

18, 500 

8,200 

2,980 

2,760 

2,570

3,050 

4,590 

2,990 

3,380 

4,040

186,300

September

3,860 

4,020 

4,090 

4,090 

4,060

4,210 

4,380 

4,380 

4,420 

4,450 

4,150 

4,060 

3,770 

3,500 

3,240

2,590 

1,980 

1,790 

1,730 

1,480

1,470 

1,400 

1,200 

823 

631 

558 

503 

446 

420 

405

78, 106

67

105 

172 

| 122

\ 156 

100

j- 72

} » 

} -

435 

395 

118

I 90 

> 36

Q\

728

1,190 

2,030 

1,450

1,810 

1,100 

681

468

1,840 

1,280 

232 

129

41

22,840

616,899 

702,300

e Estimated.

s Computed by subdividing day.
PLATTE RIVER BASIN Continued 

NORTH PLATTE RIVER NEAR CASSA, WYO. Continu

Particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Sept. 22 .................

Time

4:40 p. m. 

8:30 a. m. 

9:05 a. m. 

8:40 a.m. 

9:25 a. m.

8:00 a.m. 

8:00 a. m. 

5:00 p.m. 

3:00 p.m. 

3:00 p. m.

5:40 p. m. 

1:00 p.m. 

1:00 p. m.

Discharge 

(secondfeet)

375 

1,190 

1,750 

3,470 

4,750

3,810 

5,550 

6,000 

5,420 

5,420

5,720 

1,450 

1,450

Suspended sedim

Concentration 

of sample 

(ppm)

780 

275 

969 

950 

1,560

625 

2,520 

1,830 

3,820 

3,820

6,920 

527 

527

Concentration 

of suspension 

analyzed 

(ppm)

592 

783 

1,140 

2,160 

1,080

732 

3,150 

2,450 

4,850 

4,900

5,670 

2,370 

2,620

0.002

36

33

54 

2

64 

3

Percent finer 

0.004

46 

34 

66 

40 

36

37 

48 

40 

67 

4

63 

73 

4

0.008

51 

51

50 

79 

31

82 

12

0.016

56 

61 

84 

59 

50

50 

66 

58 

89 

88

88 

86

77

0.0
316 MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued 

NORTH PLATTE RIVER BELOW GUERNSEY RESERVOIR, WYO.

LOCATION. Three hundred feet downstream from gaging station, which is thr^e-quarters of

a mile downstream from Guernsey Dam, and 1 mile northwest of Guernsey, Platte County. 

DRAINAGE AREA. 16,200 square miles.

RECORDS AVAILABLE. Sediment records: April 194? to September 1950. 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, not determine-!; minimum

daily, not determined. 

Sediment loads: Maximum daily, not determined; minimum, less than 1 ton in October

and November. 

EXTREMES, 1947-50. Sediment concentrations: Maximum daily, 1,370 ppm July 16, 1947;

minimum daily, not determined. 

Sediment loads: Maximum daily, 16,600 tons July 16, 1947; minimum daily, less than 1

ton on some days during fall and winter months each year. 

REMARKS. Records of discharge for water year October 1949 to September given in WaterSupply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

2

Q

19

13

16 

17 ...... 

18 

19 ------ 

20 

21 

22 

23 

24 

25 

26 ------ 

27 ------ 

28 

29 

30 

31 

TotalOctober

Mean

charge 

(secondfeet)

1,090 

1,090 

1,090 

1,100 

1,100

1,120 

1,080 

1,120 

1,120 762"

434 

60 

22 

22 

22 

22 

44 38" 

28 

28

28 

22 

22 

40 

39

28 

43 

41 

22 

22 

38

11,737

Suspended sediment

Mean 

concentration 

(ppm)

9

} "

1 »

i :;

-

Tons 

per

day

27

30

16 

el

(t) 

(t)

(t)

290

November

Mean 

discharge 

(secondfeet)

42 

36 

39 

31 

21

21 

60 

85 

57 

89

83 

85 

229 

86 

84

87 

99 

93 

57 

21

84 

84 

224 

21 

147

286 

111 

301 

279 

279

3,221

Suspended sediment

Mean 

concentration 

(ppm)

6

4

4

Tons 

per 

day

el

30

December

Mean

charge 

(secondfeet)

244 

236 

219 

225 

271

247 

ISO 

175 

172 

193

127 

162 

132 

165 

138

117 

62 

21 

168 

169

118 

102 

78 

74 

73

55 

86 

90 

94 

83 

61

4,34?

Suspended sediment

Mean 

concentration

(pom)

1 

18

13

Tons 

per 

day

e4

120

e Estimated.

t Less than 1 ton.
PLATTE RIVER BASIN 

PLATTE RIVER BASIN Continued

NORTH PLATTE RIVER BELOW GUERNSEY RESERVOIR, WYO. Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

317

Day

2

Q

12

13

20

21

23

25

27

no

31 

Total -

2

12

1 7

15 

16 

17 

18- 

19 ..... 

20 

21 

22 

23 

24 

25 -----

26 

27 

23 « 

29 ~ 

30 

31 .....

Total

January

Mean

charge 

(secondfeet)

81 

100 

211 

226 

188

96 

71 

67 

191 

200 

175 

239 

170 

108 

21

209 

208 

157 

154 

194

190 

83 

152 

150 

202

149 

163 

160 

162 

169 

170

4,816

Suspended sediment

Mean 

concentration 

(PPm)

Tons 

per 

day

e6

190

April

725 

704 

704 

697 

704 

697 

690 

690 

664 

918 

697 

711 

697 

664 

697

690 

704 

767 

870 

870 

870 

974 

,050 

,040 

,040

,030 

,050 

999 

982 

1,020

24,655

8 

14

1 ' 

1 

1 ' 

1 '

15 

28

15

8 

5

8 

e28

478

February

Mean

charge 

[secondfeet)

167 

171 

178 

232 

617

275 

184 

161 

189 

139

147 

137 

225 

167 

171

1G9 

122 

142 

137 

143

182 

179 

189 

227 

227

223 

360 

366

5,831

Suspended sediment

Mean 

concentration 

(Ppm)

14

-

Tons 

per 

day

e7

200

May

1,040 

1,040 

1,030 

1,010 

999 

886 

774 

690 

466 

350 

310 

455 

704 

781 

1,020

1,440 

2,320 

3,020 

3,320 

3,540 

3,470 

3,660 

3,910 

4,210 

3,690

3,320 

2,760 

2,210 

2,140 

1,790 

1,380

57,725

1 

19

} 9

j ;

8

9 

7 

10

> 32

} "

I 22 

18

--

51

18 

9

e!6 

22

35 

44 

82

e!90 

339 

299

122 

67

3,510

March

Mean

charge 

(second - 

feet)

369 

378 

380 

329 

330

389 

383 

386 

363 

446

453 

480 

340 

171 

148 

121 

107 

21 

21 

173

488 

576 

774 

942 

950 

934 

974 

926 

886 

886 

878

15,002

Suspended sed-ment

Mean 

concentration 

(ppm)

10

6 

7

1 ' 

] '

Tons 

per 

day

e8

8 

e9 

15

23 

17

350

June

1,160 

1,640 

2,350 

2,880 

3,130 

3,150 

3,230 

3,450 

3,690 

3,910 

4,250 

4,580 

4,850 

4,960 

4,940

4,920 

4,850 

4,690 

4,600 

4,300 

4,030 

4,000 

3,980 

4,050 

4,210

4,350 

4,410 

4,540 

4,660 

4,770

118,530

} »

) ' 

} " 

} »

I"

I 38 

1 32 

j- 29

> ::

74 

67

109 

222 

-318 

465 

347

339 

264

7,350

e Estimated.
MISSOURI RIVER BASIN 

PLATTE RIVER BASIN Continued

NORTH PLATTE RIVER BELOW GUERNSEY RESERVOIR, WYO. Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

on

22

23

9A

27

29

31 

Total -

July

Mean

charge 

(secondfeet)

4,940 

4,960 

4,960 

4,880 

4,770

4,600 

4,480 

4,520 

4,600 

4,620 

4,730 

4,830 

4,940 

4,980 

5,040

4,960 

5,000 

4,940 

4,900 

4,850

4,790 

4,690 

4,470 

4,350 

4,170

4,010 

3,960 

3,960 

4,070 

4,280 

4,500

143, 750

Suspended sediment

Mean 

concentration 

(ppm)

[ 22 

I 22

) * 

}' »

} '

} - 

1 .

[ 36 

| 26

Tons 

per 

day

293 

273

190 

283 

307 

232 

482

388 

308

9,500

Total discharge for year (second-foot-day 

Total load for year (tons) ...............

August

Mean

charge 

(secondfeet)

4,600 

4,790 

4,860 

4,850 

4,850

4,810 

4,750 

4,690 

4,750 

4,790 

4,750

4,430 

3,210 

3,130

4,140 

4,730 

4,750 

4,730 

4,680

4,660 

4,640 

4,640 

4,640 

4,540

3,960 

3,930 

3,930 

3,940 

4,010 

4,390

138,300

Suspended sediment

Mean 

concentration 

(ppm)

23

} -

18 

10

} "

18 

16

--

Tons 

per 

day

297

308 

231

101 

141

225 

174

6,550

September

Mean

charge 

(second - 

feet)

4,410 

4,410 

4,450 

4,480 

4,480

4,450 

4,390 

4,280 

4,140 

3,910 

3,740 

3,330 

3,070 

2,880 

2,760

2,480 

2,200 

2,010 

2,000 

1,890

1,790 

1,600 

1,410 

1,210 

1,130

1,120 

1,130 

1,100 

1,100 

1,110

82,460

Sispended sediment

Mean 

concentration 

Opm)

14 

21

22 

12

6 

2

Tons 

per 

day

168 

235

172 

64

21 

6

3.560

s) ...................................................... 610, 374

........................................................ 32, 130
PLATTE RIVER BASIN Continued

PLATTE RIVER NEAR ODESSA, NEBR.

LOCATION. At gaging station at highway bridge, 2i miles south of Odessa, Buffalo County, and 5 mile

DRAINAGE AREA. 58,§00 square miles.

RECORDS AVAILABLE. Chemical analyses: January to September 1950.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply P

Chemical analyses, in parts per million, January to September 

Date of collection

Jan. 20, 1950 ........

Feb. 3. ..............

May 4 ...............

Sept. 28 .............

Discharge 

(secondfeet)

1,990 

2,870 

1,440 

2,240 

1,300

532 

a!67 

116 

1,080 

1,440

pH

8.2 

8.2 

8.1 

8.0 

8.1

8.3 

7.9 

8.5 

7.9 

8.3

Specific 

conductance 

(micromhos at 

25" C )

873 

860 

823 

842 

909

813 

942 

967 

789 

718

Silica 

(SiO,)

27 

27 

28 

30 

24

22 

23 

26 

23 

25

Iron 

(Fe)

0.02 

.02 

.04 

.06 

.02

.03 

.02 

.02 

.02 

.02

Calcium 

(Ca)

76 

74 

73 

77 

79

65 

76 

82 

63 

59

Magnesium 

(Mg)

22 

20 

24 

23 

23

20 

24 

22 

17 

14

Sodium 

(Na)

Potassium 

(K)

87 11 

98 

79 

84 

99

83 

91 

101 

86 

80

Carbonate 

(CO,)

6 

6 

0 

0 

0

6 

0 

14 

0 

7

Bicarbonate 

(HCO,)

227 

226 

226 

218 

208

186 

212 

193 

213 

198

Sulfate 

(SO.)

240 

236 

220 

240 

280

215 

260 

274 

197 

165

Chloride 

(Cl)

30 

25 

24 

26 

29

25 

29 

30 

22 

22

a Mean daily discharge.
PLATTE RIVER BASIN Continued 

CASPER CREEK AT CASPER, WYO.

LOCATION. At gaging station at west edge of Casper, Natrona County, 500 feet upstream from bridge on 

upstream from mouth. 

DRAINAGE AREA. 662 square miles.

RECORDS AVAILABLE. Chemical analyses: December 1949 to September 1950. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply Pa

Chemical analyses, in parts per million, December 1949 to Septemb

Date of collection

May 1

Sept. 15............

Discharge 

(secondfeet)

0.3 

a. 2 

a. 4 

a. 7 

.5

.9 

9.0 

5.9 

7.2 

1.5

Temperature 

(°F)

PH

8.0 

7.8 

7.6 

8.0 

7.8

7.8 

7.7 

7.8 

7.8 

7.8

Specific 

conductance 

(micromhos at 

25" C)

3,560 

3,570 

3,930 

3,260 

3,540

3,620 

1,790 

1,280 

1,070 

3,270

Silica 

(310,)

15 

20 

16 

20 

15

12 

16 

14 

11 

15

Iron

(Fe)

0.04

.04 

.02 

.04

.02 

.04 

.02 

.02 

.02

Calcium 

(Ca)

177 

192 

195 

165 

198

172 

102 

78 

69 

167

Magnesium 

(Mg)

79 

89 

90 

78 

83

77 

38 

31 

25 

67

Sodium 

(Na)

Potassium 

(K)

626 

582 

729 

543

557

601 

265 

158 

132 

576

Bicarbonate 

(HCO.)

310 

350 

400 

300 

300

292 

221 

198 

182 

312

Sulfate 

<304)

1,720 

1,680 

1,940 

1,560 

1,650

1,660 

735 

453 

370 

1,560

Chloride 

(Cl)

51 

51 

65 

29 

50

58 

27 

21 

18 

46

a Mean daily discharge.
PLATTK RIVER BASIN Continued 

SOUTH P1ATTE RIVER NEAR KERSEY, COLO.

LOCATION. At gaging station at bridge on State Highway 37, 1} miles north of Kersey, Weld County, 

DRAINAGE AREA. 9,500 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1949 to September 1950.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply 

Chemical analyses, in parts per million, water year October 194

Date ol collection

Oct. 14, 1949. ......

Sept. 5. ............

Discharge 

(secondfeet)

556 

598 

360 

a 398 

522 

392

239 

508 

780 

138 

97 

70

Temperature 

(°F)

pH

8.1 

7.4 

7.6 

8.1 

7.6 

8.1

8.2 

8.0 

7.4 

7.9 

8.0 

8.0

Specific 

conductance 

(micromhos at 

25" C )

1,480 

1,600 

1,610 

1,520 

1,310 

1,550

1,560 

1,240 

1,280 

1,580 

1,580 

1,740

Silica 

(S102)

19 

17 

19 

16 

14 

16

24 

13 

16 

11 

17 

22

Iron 

(Fe)

0.02 

.04 

.02 

.02 

.02 

.02

.02 

.02 

.04 

.02 

.06 

.06

Calcium 

(Ca)

108 

141 

148 

143 

124 

138

146 

102 

101 

148 

127 

165

Magnesium 

(Mg)

61 

54 

68 

69 

56 

65

70 

44 

50 

67 

67 

72

Sodium 

(Na)

Potassium 

(K)

149 

171 

148 

146 

129 

131

153 

126 

115 

135 

157 

155

Bicarbonate 

(HCO,)

234 

405 

330 

330 

296 

312

b292 

246 

244 

283 

177 

314

Sulfate 

(SOJ

550 

518 

600 

588 

473 

538

650 

405 

425 

618 

695 

690

Chloride 

(Cl)

4

5

4

4

5

4

4

5

3

3

3

4

a Mean dally discharge.

b Includes equivalent of 8 parts per million of carbonate (CO9).
PLATTE RIVER BASIN Continued 

SOUTH PLATTE HIVER AT BALZAC, COLO.

LOCATION. At gaging station at bridge at Balzac siding, 1} miles northeast of Union, Morgan County.

DRAINAGE AREA. 17,700 square miles.

RECORDS AVAILABLE. Chemical analyses: January to September 1950.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply Pa

Chemical analyses, in parts per million, January to September 19

Date of collection

Jan. 18, 1950 .....

Apr. 6 ............

May 2 .............

May 31...... ......

Sept. 5 ...........

Mean 

discharge 

(secondfeet)

14 

47 

160 

261 

254

259 

325 

143 

150 

134

Temperature

(°F)

PH

7.7 

7.8 

7.9 

7.8 

7.7

7.8- 

7.8 

7.7 

7.9 

7.9

Specific 

conductance 

(micromhos at 

25" C )

1,580 

1,760 

1,660 

1,590 

1,590

1,640 

1,700 

1,630 

1,870 

1,850

Silica 

(SiO.)

17 

18 

19 

18 

27

14 

21 

15 

20 

17

Iron

(Fe)

0.02 

.02 

.02 

.02 

.02

.02 

.04 

.02 

.04 

.04

Calcium 

(Ca)

157 

184 

188 

160 

150

145 

160 

172 

208 

191

Magnesium 

(Mg)

57 

53 

52 

56 

56

62 

57 

55 

53 

59

Sodium 

(Na)

Potassium 

(K)

159 

155 

157 

152 

161

164 

166 

157 

174 

173

Bicarbonate 

(HCOS )

228 

310 

310 

234 

200

180 

300 

270 

311 

276

Sulfate 

(S04)

683 

660 

668 

668 

685

718 

645 

675 

750 

755

Chloride 

(Cl)

50 

46 

48 

47 

51

51 

49 

48 

53 

55
PLATTE RIVER BASIN Continued 

SOUTH PLATTE RIVER AT JULESBURG, COLO.

LOCATION. At gaging station at bridge on State Highway 51, 0.5 mile east of Julesburg, Sedgwick Cou

State line.

DRAINAGE AREA. 22,800 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1950.

Water temperatures: October 1945 to September 1950. 

EXTREMES, 1949-50. Dissolved solids: Minimum, 478 ppm Aug. 5-7.

Hardness: Maximum, 694 ppm Dec. 1-11; minimum, 232 ppm Aug. 5-7.

Daily specific conductance: Maximum, 1,940 micromhos Jan. 28,29; minimum, 635 micromhos Aug. 5.

Water temperatures: Maximum, not determined; minimum, freezing point on many days during December 

EXTREMES, 1945-50. Dissolved solids: Maximum, 1,510 ppm Jan. 1-10, 1947; minimum, 478 ppm Aug. 5-7

Hardness: Maximum, 770 ppm Jan. 1-10, 1947; minimum, 173 ppm Mar. 1-12, 1947.

Daily specific conductance: Maximum, 2,140 micromhos Dec. 30, 1946; minimum, 635 micromhos Aug. 

Water temperatures: Maximum (1946-49), 84°F Aug. 8, 15, 1948; minimum, freezing point on many day

REMARKS. Daily samples for chemical analysis composited by equal volume. Daily samples collected 

specific conductance of daily samples available in regional office at Lincoln, Nebr. Records of 

September 1950 given in Water-Supply Paper 1176.

Chemical analyses, in parts per million, water year October 1949 to Sep

Date of collection

Oct. 1-31, 1949.... 

Oct. 1, Channel 1 a 

Oct. 1, Channel 2 a 

Oct. 1, Channel 4 a 

Oct. 15, Channel 1 a 

Oct. 15, Channel 2 a 

Oct. 15, Channel 4 a

Nov. 1-30 ..........

Nov. 1, Channel la 

Nov. 1, Channel 2 a 

Nov. 1, Channel 4 a 

Nov. 15, Channel 1 a 

Nov. 15, Channel 2 a 

Nov. 15, Channel 4 a

Dec. 1-11 .........

Dec. 12-28 ........

Dec. 15, Channel 1 a 

Dec. 15, Channel 2 a

DBC IS. Channel 4 a

Mean 

discharge 

(secondfeet)

376

151 

38

375 

78

405

355 

76

322 

68

384 

305

241

45

Temperature 

<°F)

PH

7.7

--

7.7

7.8 

8.0

--

Specific 

conductance 

(micromhos at 

25° C)

1,760

1,690

1,760

1,830 

1,820 

1,840

1,850 

1,780

1,860 

1 SK(1

Silica 

(SiO,)

--

36

Iron 

(Fe)

--

_

0.10

Calcium 

(Ca)

--

~

183

Magnesium 

(Mg)

--

48

Sodium 

(Na)

1

1

1 

172

--

Potassium 

(K)

86

82 

93 

16

Bicarbonate 

(HCOa)

288

322

338 

316

Sulfate 

(S04)

700

695

715 

700

Chloride 

(Cl)

6

6

6

6

a Not included in weighted average.
PLATTE RIVER BASIN Continued

SOUTH PLATTE RIVER AT JULESBURG, COLO. Continued 

Chemical analyses, in parts per million, water year October 1949 to September 

Date of collection

Jan. 7-15, 1950 .... 

Jan. 15, Channel 1 a 

Jan. 15, Channel 2 a 

Jan. 15, Channel 4 a 

Jan. 24-Feb. 24....

Feb. 1, Channel 2 a 

Feb. 1, Channel 4 a 

Feb. 15, Channel 1 a 

Feb. 15, Channel 2 a 

Feb. 15, Channel 4 a 

Feb. 25-Mar. 2....

Mar. 3-31.........

Mar. 15, Channel 1 a 

Mar. 15, Channel 4 a 

Apr. 1-30 .........

Apr. 1, Channel 2 a 

Apr. 1, Channel 4 a

May 1-5...........

May 12-16 .........

May 17-25.........

May 26 -June 2 .....

July 19, Channel 2 a 

July 19, Channel 4 a 

July 21-23.........

July 24-Aug. 4 .....

Aug. 1, Channel 1 a 

Aug. 1, Channel 2 a 

Aug. 1, Channel 4 a

Mean 

discharge 

(secondfeet)

378

215 

92 

447

260 

140

299 

89 

450

595

116 

299 

294 

68

78.6 

60.4 

44.0 

56.8

31.6 

25 

6.5 

104 

78.4

42 

6.5

Temperature 

<°F)

PH

7.9

8.0

-

7.9 

8.2

7.9

8.1 

7.7 

7.9 

8.0

7.9

7.7 

8.0

Specific 

conductance 

(micromhos at 

25° C)

1,810 

1,830

1,710

1,770 

1,790 

1 790

1,720

1,680 

1,750 

1,740 

1,720 

1,760 

1,760

1,570 

1,590 

1,570 

1,630

1,590

1,300 

1,630

1,350 

1,660

Silica 

(SiO,)

-

--

30

--

26 

40

33

29 

42

Iron 

(Fe)

--

--

.10

"

.10 

.04

.10

.10 

.10

Calcium 

(Ca)

--

~

173

--

152 

160

155

123 

162

Magnesium 

(Mg)

--

55

--

41 

44

40

31 

43

Sodium 

(Na)

Potassium 

(K)

194

~

1

1 

150

"

1

"

I 

1 

143 

148

147

120 

149

76

80 

13

>6

49 

41 

17 

16

18

17 

)7

Bicarbonate 

(HCO.)

308

300

294 

b296

268

248 

238 

220 

248

215

177 

257

Sulfate 

(SO,)

715

690

695 

685

675

605 

585 

620 

610

605

478 

605

Chloride 

(Cl)

60

57

57 

55

58

56 

58 

54 

58

57

44 

57

a Not included in weighted average.

b Includes equivalent of 8 parts per million of carbonate (CO,).
Aug. 8-11 .........

Aug. 14-19 ........

Sept. 1, Channel 2 . 

Sept. 1, Channel 4 a

Weighted average c

248

117

30 

1.8

59

d303

8.2 

8.0

17 O

"

1,470

1,650

1,580 

1,690

1,720

37

32

36 

39

--

.04 

.04

154 

170

13

40 

43 

43

43

--

144 

154

150

163

17 

17

15

156

214 

252

294

qeo

580 

635

675

1

6

5

E

5

a Not included in weighted average.

c For period sampled only

d Mean discharge for water year October 1949 to September 1950 was 270 second feet.
MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued 

SOUTH PLATTE RIVER AT JULESBURG, COLO. Continued

Temperature (°F) of water, water year October 1949 to September 1950 

/Once-daily temperature measurement usually between 4 p. m. and 8 p. m.7

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

Averaere

Oct.

67

60

66

62

63

64

63

48

54

50

56

58

54

56

57

54

50

--

48

45

47

47

52

50

50

53

49

47

51

54

Nov.

49

49

51

45

--

..

50

51

51

50

50

51

50

--

52

49

47

50

48

39

-.

44

45

44

49

52

50

47

43

44

--

48

Dec.

44

44

43

44

40

34

33

--

--

.-

34

45

35

32

--

32

32

33

33

34

36

34

34

34

--

--

--

--

Jan.

..

_

_.

-

_

33

34

34

"

..

34

32

31

31

_.

..

31

32

_.

--

--

--

--

Feb.

_

.-

_

31

31

31

31

31

32

36

..

32

32

36

38

42

44

39

41

37

37

38

..

47

46

--

Mar.

_

-.

..

_

-

..

--

--

-.

--

_

--

_

_.

_

__

_

_

--

_

55

55

55

Apr.

55

55

55

50

--

54

-_

59

_.

_

58

58

_

--

..

_.

_

53

59

55

53

_.

--

May

..

__

_

_

-

..

--

-.

__

--

_

..

..

_

_

_

..

._

75

78

..

_

--

._

._

_.

_.

._

--

June

58

60

_

_

..

--

-.

._

__

..

--

_

_

_

_

--

..

_

--

_

_

_

_

__

--

July

_

--

_

_

~

_-

-

_

_

._

_

--

78

75

7f

7T

78

75

7f

7T

71

63

7F

75

7T

74

7f

7f

Aug.

74

80

80

81

77

75

78

80

74

75

72

75

76

77

79

77

77

79

76

78

73

73

74

73

71

72

73

73

74

74

75

7fi

Sept.

72

74

74

72

75

73

73

73

72

72

73

71

60

70

69

67

68

69

69

70

70

72

70 

70

69

67

66

65

67

62

7f>
PLATTE RIVER BASIN Continued 

BIJOU CREEK NEAR WIGGINS, COLO.

LOCATION. At gaging station at bridge on U. S. Highways 6 and 34,2 miles northeast of Wiggins, Mo

Antelope Creek.

DRAINAGE AREA. 1,420 square miles.

RECORDS AVAILABLE. Sediment records: April to September 1950. 

EXTREMES, April to September 1950. Sediment concentrations: Maximum daily, 127,000 ppm July 30; m

Sediment loads: Maximum daily, 55,000 tons July 31; minimum daily, 0 tons on many days. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply 

Chemical analyses, In parts per million, July 1950

Date of collection

July 31 ...........

Discharge 

(secondfeet)

7.5 

10 

689

Temperature 

(°F)

PH

6.9 

6.8 

7.0

Specific 

conductance 

(micromhos at 

25° C )

1,430 

1,330 

1,130

Silica 

(Si02 )

22

28 

27

Iron 

(Fe)

0.02 

.02 

.02

Calcium 

(Ca)

214 

220 

182

Magnesium 

(Mg)

36 

25 

25

Sodium 

(Na)

Potassium 

(K)

77 

74 

53

Bicarbonate 

(HCOS )

833 

676 

518

Sulfate 

(SO,)

151 

238 

230

Chlo

ride 

(Cl)

5.5 

6.5

5.0
MISSOURI RIVER BASIN

FLATTE RIVER BASIN Continued

BIJOU CREEK NEAR WIGGINS, COLO.--Continued 

Suspended sediment, April to September 1950

Day

g

12

22

24

90

Total2

g

12

20

23

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

0

July

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

1.9 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

1.6 

6.7 

166

176.2

31,900 

127,000 

99, 600

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

e750 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

S717 

s 2, 480 

355,000

38,950

May

Mean

charge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

0

August

55 

15 

.9 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

n

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

70.9

70, 600 

71,800 

39, 000

Total discharge for period Apr. 1 to Sept. 30 (second-foot-days) 

Total load for period Apr. 1 to Sept. 30 (tons) .................

810,900 

s3,880 

8131 

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

14,910

dune

Mean

charge 

(secondfeet)

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

5.9 

.2 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

6.1

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

el, 700 

e20 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

1,720

September

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

6.0

7.0 

78 

6.0 

1.4 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

98.4

39, 400 

47,000

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

Si, 520

921 

620,000 

el, 000 

eSOO 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

23, 900

................................... 351.6

................................... 99, 480

e Estimated.

s Computed by subdividing day.
PLATTE RIVER BASIN Continued 

BIJOU CREEK NEAR WIGGINS, COLO. Continued

Particle-size analyses ot suspended sediment, June to Septembe

(Methods of analysis: B, bottom withdrawal tube; D, decantation; p, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

June 17, 1950 ..........

July 30 ................

4»5. 3 ................

Sept. 16 ...............

Time

5:40 p.m. 

5:40 p.m. 

8:40 p.m. 

6:50 p.m. 

11:20 p.m.

12:10 a.m. 

1:50 a.m. 

11:20 a.m. 

12:00 m. 

12:00 m.

8:15 a.m. 

8:15 a.m. 

8:45 a.m. 

12:00 m. 

12:00 m.

1:05 p.m. 

5:40 p.m. 

5:40 p.m. 

9:40 p.m. 

11:30 p.m.

11:00 a.m. 

2:45 p.m. 

2:45 p.m. 

3:10 p.m. 

7:35 a.m.

6:45 p.m. 

8;4n n.m. 

4:25 p.m. 

8:40 a.m.

Discharge 

(secondfeet)

2.8 

2.8 

8.0 

10 

6.7

7.2 

10 

6.0 

6.0 

6.0

12 

12 

12

741 

741

728 

264 

264 

137 

88

55 

33 

30 

30 

117 

20

11 

1.0 

14 

7.0

Suspended sedim

Concentration 

of sample 

(ppm)

24, 200 

24, 200 

141,000 

161,000 

138,000

138,000 

131,000 

134,000 

134,000 

134,000

99,200 

99, 200 

99, 200 

157,000 

157,000

140, 000 

92,800 

92, 800 

78,800 

77, 900

66, 600 

67,300 

81,400 

81,400 

82, 700 

72,400

79,700 

56, 200 

106,000 

47,600

Concentration 

of suspension 

analyzed 

(ppm)

3,580 

3,920 

3,410 

7,280 

7,020

5,640 

5,400 

5,790 

7,570 

7,620

9,310 

9,220 

8,600 

7,150 

6,870

5,740 

8,220 

8,380 

6,330 

6,960

6,490 

6,490 

8,680 

8,600 

8,580 

7,470

8,650 

5,800 

5,910 

9,800

Percent finer t

0.002

59 

15

82 

82

80 

2

71

62 

3

62 

2

68 

1

0.004

72

88 

91 

94

92 

93 

93 

93 

5

88 

3 

91 

72 

4

73 

80 

4 

83 

86

93 

93 

84 

2 

88 

95

98 

98 

94 

97

0.008

80 

67

97 

98

99 

14

96 

8

84 

16

90 

12

95 

10

0.016

83 

82 

96 

98 

100

98 

98

100 

89

97 

96 

99 

92 

91

92 

96 

96 

97 

98

99 

100 

97 

97 

97 

99

100 

100 

100 

100

0.0
PLATTE RIVER BASIN Continued 

WOOD RIVER NEAR RIVERDALE, NEBR.

LOCATION. At gaging station at bridge on State Highway 40, l£ miles northwest of Riverdale, Buffal

DRAINAGE AREA. 379 square miles.

RECORDS AVAILABLE. Sediment records: March 1947 to September 1950.

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, not determined; minimum daily, not det

Sediment loads: Maximum daily. 8,300 tons July 9; minimum daily, less than 1 ton on many days. 

EXTREMES, 1947-50. Sediment concentrations: Maximum daily, not determined; minimum daily, not det

Sediment loads: Maximum daily, 356,000 tons June 22, 1947; minimum daily, less than 1 ton on many 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply 

Chemical analyses, in parts per million, June to October 1

Date of collection

Oct. 6 .............

Discharge 

(secondfeet)

a729 

1.5

Temperature

<°F)

pH

7.1 

7.6

Specific 

conductance 

(micromhos at 

25° C)

160 

550

Silica 

(S10a )

19 

21

Iron 

(Fe)

0.07 

.02

Calcium 

(Ca)

20 

76

Magnesium 

(Mg)

4.0 

9.3

Sodium 

(Na)

Potassium 

(K)

8.7 

37

Bicarbonate 

(HCOS )

92 

344

Sulfate 

(SO,)

6.0 

16

Chloride 

(Cl)

0.6 

4.5

a Mean daily discharge.
PLATTE RIVER BASIN

PLATTE RIVER BASIN Continued

WOOD RIVER NEAR RIVERDALE, NEBR. Continued

Suspended sediment, water year October 1949 to September 1950

Day

13

21

22

23

25

TotalQ

13

19

20

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

charge 

(secondfeet)

0.8 

.8 

.6 

.7 

.8

1.4 

2.0 

4.4 

5.5 

18

17 

7.4 

3.8 

4.0 

4.4

4.8 

4.8 

4.9 

4.6 

3.0

2.0 

2.0 

2.0 

2.0 

2.0

2.0 

2.0 

2.0 

2.1 

2.2 

2.2

116.2

Suspended sediment

Mean 

concentration 

(ppm)

76

163 

143 

116

79 

49

--

Tons 

per 

day

(t)

e26

e55 

ell 

2 

2 

1

1

(t)

108

January

2.9 

2 9 

2 9 

2.6 

2.6

2.6 

2.6 

2 9 

2.9 

2.9

2.6 

2.9 

2.9 

2.9 

2.9 

2.6 

2.9 

2.6 

2.2 

2.6

2.9 

4.1 

4.1 

4.1 

3.6

3.6 

3.6 

3.6 

3.6 

3.6 

3.6

95.3

31

125 

122

22

-

(t)

1 

1

(t)

8

November

Mean

charge 

(secondfeet)

2.5 

2.8 

2.6 

2.4 

2 2

2.3 

2.4

2.5 

2.6 

2.6

2.7 

2.7 

2.6 

2.6 

3.4 

4.2 

2.6 

2.5 

2.7 

2.6

2.4 

2.6 

2.6 

3.0 

3.6 

3.2 

3.2 

2 9 

s!2 

3.6 .

83.8

Suspended sediment

Mean 

concentration 

(ppm)

50

Tuns 

per

day

(t)

11

February

3.2 

4.1 

5.0 

4.1 

4.1

4.1 

4.6 

4.6 

4.6 

4.1

5.0 

10 

7.2 

6.6 

6.1 

5.0 

10 

100 

80 

60

40 

26 

28 

25 

35

14 

15 

13

528.4

21

232 

90 

90 

138 

36 

40 

43 

47

(t)

ell 

e400 

e30 

e!60

25 

6 

7 

9 

3

2 

2 

2

662

December

Mean

charge 

(secondfeet)

2.6 

2.9 

3.2 

3.2 

3.2

3.6 

4.1 

4.1 

4.1 

4.1

3.6 

3.2 

2.9 

2.9 

2.9

3.2 

3.2 

2 9 

3.2 

3.6

3.2 

2.6 

2.9 

2.6 

2.9

2.2 

2.2 

2.2 

2 2 

2^6 

2.9

95.2

Suspended sedi ment

Mean 

concentration 

(ppm)

51 

52 

54 

68 

117

150 

88

153 

115

Tuns 

p«?r 

d->y

(t) 

(t) 

(t) 

(t) 

1

1 

1

<t>

1

(t)

17

March

10 

7.2 

7.2 

7.2 

7.2

7.2

}'

5

6. 1 

5.6 

5.0 

5.0 

6.6 

12 

15 

20 

25 

24 

18 

11 

10 

8.8

277.1

50 

52

27

47 

120 

139 

115 

80 

53 

38 

26 

21

1 

1

(t)

2 

5 

8 

8 

5 

3 

1 

(t) 

(t)

44

e Estimated.

t Less than 1.0 tons.
332 MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued 

WOOD RIVER NEAR RIVERDALE, NEBR. Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

2

22

O«

25

27

31 

Total1 

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 

Total

April

Mean

charge

(secondfeet)

7.8 

6.6 

7.2 

6.1 

6.1

6.1 

5.0 

5.0 

5.0 

4.6

4.6 

4.1 

4.1 

4.1 

4.6 

5.6 

5.6 

5.0 

4.6 

4. 1

4.1 

3.5 

3.2 

3.0 

3.2

2. 6 

2.8 

3.3

3.3 

3.7

138.6

Suspended sediment

Mean 

concentration 

(ppm)

50

Tons 

Per 

day

(t)

16

July

1.8 

1.8 

2.2 

2.7 

2.9

3.7 

3.3 

21 

362 

31

29 

104 

26 

13 

6.6 

4.9 

3.2 

4.0 

2.9 

2.6 

37 

28 

36 

59 

28 

14 

7.3 

2.9 

3.2 

4.0 

5.4

853.4

84 

132 

96 

120 

130

132 

100

2,740

2,200 

1,180 

408

220 

140 

136 

112 

88

2,020 

1,660 

1,080 

2,280 

1,900 

1,420 

555 

259 

13C 

90 

113

-

(t) 

(t) 

(t) 

(t) 

1

1 

(t) 

e380 

e 8, 300 

s271 

e240 

el, 200 

154 

41 

7

3 

1 

2

(t)

w

s226 

125 

105 

363 

144 

54 

11 

2 

1 

1 

2

11, 640

May

Mean

charge 

isecondfeet)

4.1 

3.9 

4.8 

3.8 

5.2

6.4 

6.0 

5.9 

5.8 

5.8

5.7 

5.6 

6.5 

5.4 

4.6

4.1 

4.2 

4.8 

7.6 

7.7

39 

42 

22 

17 

9.0

6.6 

6.6 

110 

55 

50 

24

488.1

Suspended sediment

Mean 

concentration 

(ppm)

39

79 

79 

63

63 

60 

75 

89 

70

65 

111

146 

326 

918 

964 

680 

425

265 

151 

5,720 

1,620 

2,780 

1,800

Tons 

per 

day

(t)

1 

1 

1

1 

(t) 

1 

1 

(t)

(t) 

1 

e2 

e4 

3 

s40 

104 

57 

31 

10

5 

3 

s 1, 990 

s274 

s387 

117

3,040

August

2.6 

2.4 

3. I 

5.2 

3.3 

3.7 

4.2 

3.2 

2.2 

2.4

2.2 

2.0 

2.0 

2.0 

2.0

2.0 

1.8 

2.2 

8.3 

27 

37 

21 

8.0 

6.0 

3.6 

4.9 

4.1 

3.7 

2.9 

2.1 

2.0

179.1

81

175 

640 

950 

1,060 

900 

480 

343 

292 

247 

171 

131 

111 

107

-

(t)

4 

47 

95 

60 

19 

8 

3 

4 

3 

2 

1 

(t) 

(t)

257

June

Mean

charge 

( second - 

feet)

14 

11 

5.6 

3.7 

2.8

2.5 

2.3 

2.0 

2.0 

2.2

2.5 

2.2 

2.2 

2.2 

2.4

2.8 

3. 8 

14 

196 

145

29 

13 

7.3 

4.9 

3.7

2.2 

1.8 

2.0 

1.8 

1.8

488.7

Suspended sediment

Mean 

concentration 

(ppm)

1,070 

590 

378 

250 

167

171 

200

103

141 

127 

162 

6,000 

4,180

3,000 

950 

385 

241 

175

186 

200 

135 

150 

136

Tons 

per 

day

40 

18 

6 

2 

1

1 

1

(t)

1 

1 

6 

s3,460 

s 1, 760

235 

33 

8 

3 

2

1 

1 

(t) 

(t) 

(t)

5.590

September

1.5 

2.4 

2.5 

1.9 

1.6 

1.4 

1.4 

1.4 

1.6 

1.9

1.8 

1.4 

1.9 

1.9 

48 

10 

2.3 

1.6 

16 

283 

60 

57 

30 

11 

5.0 

3.2 

2.6 

2. 8 

3.3 

2.9

563.3

98

4,770

980 

152 

212 

990

2,460 

1,600 

1,600 

1,130 

530 

290 

167 

118 

110 

98

(t)

s 1, 180 

s33 

(t) 

(0 

s!27 

e 3, 600 

s408 

246 

130 

34 

7 

2 

1 

(t) 

1 

(t)

5,780

Total discharge for year (second-foot-days) ....................................................... 3,807. 2

Total load for year (tons)........................................................................ 27,170

e Estimated.

s Computed by subdividing day.

t Less than 1.0 ton.
PLATTE RIVER BASIN Continued 

WOOD RIVER NEAR RIVERDALE, NEBR. Continue

particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Oct. 12 .................

May 21, 1950 ............

June 19. .................

June 21. ................

July 9 ..................

July 24 .................

Sept. 20 ................

Time

5:40 p. m. 

10:25 a. m.

3:45 p. m. 

7:20 a. m. 

7:20 p. m. 

8:20 a. m. 

4:30 p.m.

6-:00 p. m. 

8:15 p.m. 

7:15 a.m. 

7:25 a. m. 

9:20 a.m.

10:00 a. m. 

10:00 a. m. 

8:55 a. m. 

9:00 a. m. 

11:35 p. m.

7:20 a.m. 

3:20 p. m. 

1:15 p. m. 

8:05 a.m. 

2:50 p.m. 

4:30 p. m.

Discharge 

(secondfeet)

19 

10

69 

201 

72 

55 

257

261 

274 

31 

590 

492

444 

444 

35 

134 

4]

66 

23 

147 

416 

283 

232

Suspended sedi

Concentration 

of sample 

(ppm)

1,180 

615

289 

10, 300 

4,700 

2,910 

7,130

6,970 

6,370 

3,440 

8,000 

5,170

7,360 

7,360 

3,060 

4,220 

1,880

2,220 

1,940 

18,400 

4,380 

2,980 

2,720

Concentration 

of suspension 

analyzed 

(ppm)

863 

542

1,080 

7,360 

3,400 

2,390 

4,330

5,690 

4,380 

2,330 

6,770 

4,180

4,860 

4,770 

2,730 

5,960 

1,460

1,270 

1,330 

7,770 

3,360 

2,080 

1,250

Percent finer 

0.002

89 

83

43 

71

78

67 

38 

62

39

40 

52

61 

544

0.004

95 

96

53 

54 

68 

89 

76

78 

80 

87 

60 

74

71 

54 

76 

69 

53

48 

61 

52 

73 

69 

68

0.008

97 

99

67 

96

94

83 

71 

88

64

60 

63

76 

76

0.016

99 

100

81 

77 

99 

100 

87

90 

89 

96 

75 

90

84 

78 

95 

81 

78

74 

83 

78 

84 

84 

85

0
334 MISSOURI RIVER BASIN

PLATTE RIVER BASlN Contlnued 

MIDDLE LOUP RIVER AT DUNNING, NEBR.

LOCATION. At county bridge at north limits of Dunning, Blaine County, 50 feet upstream

from gaging station which is 1J miles upstream from Dismal River. 

DRAINAGE AREA. 1,760 square miles, of which about 80 square miles contrilute directly to

surface runoff. 

RECORDS AVAILABLE. Water temperatures: April 1948 to September 1949.

Sediment records: April 1946 to March 1950 (discontinued). 

EXTREMES, October 1949 to March 1950. Sediment concentrations: Maximum tfaily, 4,500 ppm

Dec. 8; minimum daily, 50 ppm Feb. 13.

Sediment loads: Maximum daily, 4,820 tons Dec. 8; minimum daily 43 tons Jan. 3. 

EXTREMES, 1946-50. Sediment concentrations: Maximum daily, 5,160 ppm Dec. 7, 1949; 

minimum daily, 40 ppm Jan. 9-10, 1949.

Sediment loads: Maximum daily, 5.400 tons Dec. 6-7, 1949; minimum daily, 42 tons 

Jan. 4, 1949.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in 

Water-Supply Paper 1176.

Suspended sediment, October 1949 to March 1950

Day

16 

17 

18 

19 

20 ----- - 

21 

22 

23 

24 

25 

26 

27 

28 

29 . 

30 

31 

Total -

October

Mean

discharge 

(secondfeet)

355 

364 

373 

358 

364

376 

361 

364 

344 

415

379 

341 

338 

333 

336

344 

336 

352 

358 

333 

325 

317 

327 

336 

344

333 

344 

350 

350 

341 

336

10, 827

Suspended sediment

Mean 

concentration 

(ppm)

660 

840 

670 

520 

450

720 

660 

530 

920 

960

930 

1,070 

1,170 

1,090 

1,100

1,070 

880 

730 

930 

1,080

1,020 

880 

520 

660 

1,070

1,010 

830 

610 

740 

840 

650

Tons 

per 

day

630 

830 

670 

500 

440

730 

640 

520 

850 

1,080

950 

990 

1,070 

980 

1,000

990 

800 

690 

900 

970

900 

750 

460 

600 

990

910 

770 

580 

700 

770 

590

24,250

November

Mean

charge 

(secondfeet)

344 

338 

336 

355 

379

379 

385 

388 

382 

409

421

394 

388 

409 

403

379 

364 

388 

403 

391

385 

379 

403 

415 

388

376 

394 

397 

382 

379

11,533

Suspended sediment

Mean 

concentration 

(ppm)

820 

1,000 

750 

770 

700

710 

800 

990 

1,280 

1,000

970 

1,080 

760 

710 

1,050

1,320 

1,300 

940 

850 

1,200

1,350 

1,250 

830 

850 

860

990 

940 

690 

970 

1,200

--

Tons 

per 

day

760 

910 

680 

740 

720

730 

830 

1,040 

1,320 

1,100

1,100 

1,150 

800 

780 

1,140

1,350 

1,280 

980 

920 

1,270

1,400 

1,280 

900 

950 

900

1,010 

1,000 

740 

1,000 

1,230

30,010

Dec ember

Mean

discharge 

(secondfeet)

382 

388 

397 

388 

376

379 

379 

397 

403 

379

340 

300 

200 

200 

220

250 

300 

330 

330 

300

310 

320 

340 

310 

310

310 

360 

370 

400 

370 

370

10,408

Suspended sediment

Mean 

concentration 

(ipm)

1,490 

1,600 

1,230 

1,160 

1,010

1,070 

1,740 

4,500 

2,650 

1,850

1,720 

320 

110 

180 

90

180 

310 

300 

280 

190

190 

180 

160 

300 

700

750 

400 

240 

220 

170 

130

Tons 

per 

day

,540 

,680 

,320 

,220 

,030

,090 

,780 

4,820 

2,880 

1,890

1,580 

260 

59 

97 

53

120 

250 

270 

250 

150

160 

160 

150 

250 

590

630 

390 

240 

240 

170 

ISO

25,450
PLATTE RIVER BASIN

PLATTE RIVER BASIN Continued 

MIDDLE LOUP RIVER AT DUNNING, NEBR. Continued

Suspended sediment. October 1949 to March 1950--Continued

Day

l_. 

2

o

1 Q

20

00

28

29

30

TotalJanuary

Mean

charge 

(secondfeet)

370 

340 

160 

170 

200

270 

340 

380 

390 

440

470 

450 

410 

350 

320

270 

360 

370 

320 

370

420 

470 

450 

410 

270

220 

300 

410 

430 

330 

330

10,790

Suspended sediment

Mean 

concentration 

(ppm)

110 

150 

100

420

240 

200 

200 

280 

370

270 

200 

330 

530 

470

220 

100 

130 

220 

250

250 

200 

210 

130 

210 

480 

280 

200 

130 

210

--

Tons 

per 

day

110 

140 

43 

6100 

230

170 

180 

210 

290 

440

340 

240 

370 

500 

410

160 

97 

130 

190 

250

280 

250 

260 

140 

150 

290 

230 

220 

150 

190 

e500

7,260

February

Mean

charge 

(secondfeet)

360 

360 

360 

360 

390

440 

450 

490 

450 

430

390 

360 

330 

320 

360

370 

370 

390 

400 

420

379 

376 

347 

355 

361

382 

400 

400

10,800

Total discharge for period Oct. 1 to Mar. 21 (secondTotal load for period Oct. 1 to Mar. 21 (tons) .......

Suspended sediment

Mean 

concentration 

(ppm)

510 

200 

420 

380 

200

260 

350 

360 

270 

130

70 

L20 

50 

L40 

500

430 

440 

360 

950 

1,200

2,200 

1,400 

1,490

1,690

1,850 

1,600 

1,670

--

Tons 

per 

day

500 

190 

410 

370 

210

310 

430 

480 

330 

150

74 

120 

45 

120 

490

430 

440 

380 

1,030 

1,360

2,250 

1,420 

1,400 

el, 400 

1,650 

1,910 

1,730 

1,800

21,430

March

Mean 

discharge 

(secondfeet)

376 

350 

358 

397 

431

440 

300 

230 

320 

420

290 

350 

380 

410 

430

430 

516 

479 

450 

463

489

8,309

Suspended sediirent

Mean 

concentration 

(ppm)

,620 

,630 

,800 

,350 

,100

1,070 

500 

170 

650 

670

560 

750 

770 

820 

740

1,950 

2,450 

3,060 

3,160

1,750

--

Tors 

pe 

da

,640 

,540 

,740 

,450 

,280

1,270 

400 

110 

560 

760

440 

710 

790 

910 

860

2,260 

3,410 

3,960 

3,840 

e3,200

2,310

33,440

............................................. 141, 800

e Estimated.
PLATTE RIVER BASIN Continued 

MIDDLE LOUP RIVER AT DUNNING, NEBR. Continu

Particle-sire analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Oct. 5, 1949 ............

Oct. 12 .................

Oct. 18 .................

Nov. 1 .................

Nov. 15 ................

Nov. 30 ................

Jan. 11, 1950 ...........

Feb. 22 ................

Mar. 1 .................

Mar. 8 .................

Mar. 8 .................

Mar. 21 ................

Apr. 25 ................

May 23 .................

June 6 .................

June 20 .................

July 6 ..................

July 18 .................

Aug. 26.. ...............

Time

1:45 p.m. 

11:15 a.m. 

3:45 p.m. 

11:30 a.m. 

12:45 p.m. 

12:00 m. 

11:00 a.m. 

4:30 p. m.

1:30 p. m. 

11:20 a.m. 

2:15 p.m. 

2:15 p.m. 

10:30 a.m. 

1:00 p. m. 

10:45 a.m.

8:25 a.m. 

8:20 a.m. 

8:45 a. m. 

8:45 a.m. 

7:55 a. m. 

8:50 a.m. 

9:00 a.m. 

9:10 a.m.

Discharge 

(secondfeet)

361 

394 

347 

347 

412 

364 

388 

460

400 

472 

210 

210 

450 

421 

463

444 

406 

391 

397 

361 

376 

376 

479

Temperature 

(°F)

65 

49 

60 

47 

42 

39 

32 

32

36 

34 

32 

32 

34 

41 

40

43 

62 

65 

64 

64 

64 

62 

64

Suspended sedim

Concentration 

of sample 

(ppm)

382 

836 

617 

634 

880 

934 

1,060 

198

1,470 

1,280 

1,660 

1,660 

1,820 

1,090 

1,090

1,230 

801 

747 

524 

629 

526 

871 

550

Concentration 

of suspension 

analyzed 

(ppm)

2,680 

1,410

Percent finer t

0.002 0.004 0.008 0.016 0.0
PLATTE RIVER BASIN 337

PLATTE RIVER BASIN Continued 

MIDDLE LOBP RIVER AT DUNNING, NEBR. (Total load section)

LOCATION. At downstream measuring sill of turbulence flume beneath bridge on State Highway 2 at northeast limits of Dunning, Blaine County, 1,150 feet downstream from gaging 

station, and 1 mile upstream from Dismal River.

DRAINAGE AREA. 1,760 square miles, of which about 80 square miles contribute directly to 

surface runoff.

RECORDS AVAILABLE. Water temperatures: October 1949 to September 1950. 

Sediment records: March to September 1950.

EXTREMES, 1949-50. Water temperatures: Maximum, 71°F July 10; minimum, freezing pcint 

on many days during November to March.

Sediment concentrations (March to September 1950): Maximum daily, 3,290 ppm Apr. 30; 

minimum daily, 510 ppm June 16.

Sediment loads (March to September 1950): Maximum daily, 4.000 tons Mar. 25; minimum 

daily 490 tons June 16.

REMARKS. Investigations indicate that practically all the total sediment load is transported in suspension at this section of the river. Records of discharge for water year 

October 1949 to September 1950 given in Water-Supply Paper 1176.

Temperature (°F) of water, water year October 1949 to September 1950 

/Once-daily temperature measurement usually between 7 a. m. and 8 a. m.7

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

Average

Oct.

53

56

57

51

58

58

53

51

46

48

48

45

47

48

46

48

47

53

49

42

40

37

43

42

43

43

45

45

45

37

36

47

Nov.

42

39

36

41

42

42

42

42

42

45

46

37

38

40

35

36

37

37

41

37

32

34

39

40

39

42

41

44

38

35

--

39

Dec.

36

37

39

33

32

35

32

32

32

33

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

33

33

Jan.

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

Feb.

32

32

32

32

33

32

32

32

33

33

32

32

32

32

32

32

32

32

32

32

33

33

36

35

37

35

39

37

--

--

33

Mar.

35

32

33

37

42

42

32

32

32

32

32

32

32

32

36

39

33

33

33

33

36

40

36

39

42

32

32

--

42

35

Apr.

40

44

33

33

36

38

44

41

40

38

34

40

34

38

41

49

48

46

40

38

44

51

53

51

34

42

41

38

34

36

--

41

May

44

47

57

56

33

38

45

46

43

50

51

55

55

56

58

58

59

59

55

55

51

58

61

57

52

50

50

53

59

58

54

52

June

53

59

55

52

59

63

61

__

57

57

60

61

70

66

70

70

62

60

57

64

66

66

67

70

70

60

62

62

60

62

62

July

66

66

68

66

61

63

64

68

70

71

70

70

57

62

62

68

Gl

65

61

65

62

68

68

65

60

65

64

67

69

67

65

65

Aug.

61

61

65

67

70

67

66

69

65

65

70

68

68

68

69

70

66

62

64

55

59

62

63

66

62

63

61

61

64

62

62

65

Sept.

65

65

66

64

62

49

58

61

61

61

51

53

53

54

58

56

58

60

60

61

47

54

56

56

57

57

57

55

57

56

58
338 MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued

MIDDLE LOUP RIVER AT DUNNING, NEBR. (Total load section)--Continued 

Suspended sediment, March to September 1950

Day

3

12

21

22

25

97

00

29

31 

Total -

3

0

13

19

21 

22 

23 

24 ------ 

25 

26 

27 

28 

29 

30 

31 

Total -

January

Mean

charge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

April

437 

447 

460 

406 

385

367 

400 

385 

376 

364

330 

341 

333 

330 

333

330 

370 

367 

327 

322 

352 

376 

388 

385 

341

338 

352 

394 

397 

379

11, 112

1,900 

1,690 

2,650 

2,370 

2,200 

1,360 

1,550 

2,220 

1,950 

1,790

2,080 

1,710 

1,960 

1,590 

2,090

,920 

,660 

,320 

,640 

,720 

,410 

,470 

,490 

,720 

,800 

2,110 

2,050 

1,820 

2,420 

3,290

--

2,240 

2,040 

3,290 

2,600 

2,290

1,350 

1,670 

2,310 

1,980 

1,760

1,850 

1,570 

1,760 

1,420 

1,880

1,710 

1,660 

1,310 

1,450 

1,500 

1,340 

1,490 

1,560 

1,790 

1,660

1,930 

1,950 

1,940 

2,590 

3,370

57,260

February

Mean

charge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

May

412 

421 

428 

428 

424

394 

431 

418 

364 

367

397 

400 

400 

376 

364

367 

373 

367 

367 

379 

370 

352 

358 

338 

344

347 

350 

355 

364 

367 

352

11,774

1,580 

1,740 

1,620 

2,860 

2,460 

1,970 

2,000 

,500 

,560 

,730 

,720 

,650 

,540 

1,530

990 

1,130 

1,160 

1,170 

1, 110 

860 

990 

1,130 

1,260 

1,630 

950 

1,060 

1,000 

1,120

e2,900 

1,800 

2,010 

1,870 

3,270

2,620 

2,290 

2,260 

1,470 

1,550

1,850 

1,860 

1,780 

1,560 

1,500

el, 200 

e800 

980 

1,120 

1,190 

1,170 

1,050 

830 

900 

1,050

1,180 

1,540 

910 

1,040 

990 

1,060

47,600

IVarch

Mean

charge 

(secondfeet)

472 

479 

447 

472

509 

450 

421 

428 

415 

434

4,527

Suspended sediment

Mean 

cincent-ation 

(ppm)

2,700 

2,980 

1,730 

3,140

2,190 

1,600

2,930 

1,860

Tons 

per 

day

3,440 

3,850 

2,090 

4,000

3,010 

e2,400 

1,820 

e2,900 

3,280 

2.180

28, 970

June

338 

352 

336 

336 

350

341 

327 

333 

333 

333 

330 

336 

350 

388 

391

355 

350 

364 

347 

341 

341 

344 

347 

336 

347 

338 

333 

338 

338 

336

10,329

800 

660 

890 

850 

820 

720 

860 

820 

800 

920

760 

720 

620 

870 

750

510 

750 

820 

660 

730 

930 

780 

660 

600 

610

880 

810 

770 

810 

860

730 

630 

810 

770 

780 

660 

760 

740 

720 

830 

680 

650 

590 

910 

790

490 

710 

810 

620 

670 

860 

720 

620 

540 

570

800 

730 

700 

740 

780

21,410

e Estimated.
PLATTE RIVER BASIN 339

PLATTE RIVER BASIN Continued 

MIDDLE LOUP RIVER AT DUNNING, NEBR. (Total load section) Continued

Suspended sediment, March to September 1950 Continued

Day

g

nq

24

oc

27

Op

29

31 - 

TotalJuly !

Mean

discharge 

(secondfeet)

341 

361 

361 

358 

355

338 

336 

336 

336 

336

350 

344 

325 

330 

370

355 

347 

361 

400 

358

388 

415 

352 

350 

373

364 

358 

341 

347 

355 

373

11,014

Suspended sediment

Mean 

concentration 

(ppm)

640 

750 

750 

650 

940

760 

760 

660 

870 

580

760 

830 

810 

750 

930 

970 

850 

970 

1,060 

650

990 

1,410 

1,280 

910 

1,000

660 

830 

570 

640 

650 

790

..

Tons 

per 

day

590 

730 

730 

630 

900

690 

690 

600 

790 

530

720 

770 

710 

670 

930

930 

800 

950 

1,140 

630

1,040 

1,580 

1,220 

860 

1,010

650 

800 

520 

600 

620 

800

24,830

August

Mean

charge 

(second - 

feet)

336 

333 

341 

364 

367

338 

350 

350 

400 

409

361 

352 

352 

358 

352

350 

336 

333 

344 

341

341 

336 

338 

336 

341

406 

370 

358 

370 

367 

364

10,994

Suspended sediment

Mean 

concentration 

(ppm)

700 

870 

900 

730 

590

670 

970 

1,010

1,350

890 

950 

790 

790 

660

600 

650 

700 

670 

960

830 

780 

640 

600 

1,000

1,330 

920 

780 

790 

700 

830

--

Total discharge for period Mar. 21 to Sept. 30 (second-foot-days) 

Total load for period Mar. 21 to Sept. 30 (tons) ...............

Tons 

per 

day

640 

780 

830 

720 

580

610 

920 

950 

e2, 100 

1,490

870 

900 

750 

760 

630 

570 

590 

830 

620 

880

760 

710 

580 

540 

920

1,460 

920 

750 

790 

690 

820

25,760

September

Mean

charge 

(secondfeet)

344 

341 

338 

333 

330

330 

325 

336 

330 

355

355 

333 

361 

347 

406

394 

364 

382 

364 

415

424 

358 

347 

350 

361

352 

352 

355 

361 

358

10,701

Suspended sediment

Mean 

concentration 

(ppm)

1,040 

810 

680 

660 

680

580 

650 

950 

920 

870

1,100 

920 

870 

1,060 

970

1,340 

1,020 

920 

760 

770

1,000 

1,400 

970 

1,060 

890

1,020 

1,000 

980 

820 

710

--

Ton^ 

per 

da}

970 

750 

620 

590 

610

520 

570 

860 

820 

830

1,050 

830 

850 

990 

1,060

1,430 

1,000 

950 

750 

860

1,140 

1,350 

910 

1,000 

870

970 

950 

940 

800 

680

26, 520

. . . .......................... 70,451

....... 232,400

e Estimated.
PLATTE RIVER BASIN Continued 

MIDDLE LOUP RIVER AT DUNNING, NEBR. (Total load section

Particle-size analyses of suspended sediment, March to Septem

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Mar. 30 ...............

Apr. 10 ...............

Apr. 12 ...............

Apr. 25 ................

May 1 .................

May 10 ................

May 20 ................

May 23 ................

June 24 ................

July 6 .................

July 25 ................

Aug. 10 ................

4ug. W ................

Aug. 26 ................

Sept. 13 ...............

Time

3:00 p.m. 

11:25 a.m. 

6:55 p. m. 

8:15 a.m. 

4:10 p.m.

7:40 a.m. 

2:00 p. m. 

7:15 a.m. 

11:15 a.m. 

7:20 a.m.

7:00 a.m. 

10:20 a. m. 

7:00 a. m. 

11:30 a. m. 

7:05 a.m.

4:15 p.m. 

6:30 a. m. 

7:00 a.m. 

10:50 a.m. 

7:30 a. m. 

7:05 a.m.

2:45 p. m. 

7:00 a.m.

7:25 p. m. 

7:00 a.m. 

7:15 a.m.

Discharge 

(secondfeet)

472 

466 

421 

370 

421

307 

437 

421 

447 

370

364 

397 

344 

364 

391

400 

350 

370 

355 

361 

364

364 

456 

 H4 

447 

379 

358

Suspended sedim

Concentration 

of sample 

(ppm)

2,310 

2,440 

2,320 

1,930 

1,500

1,850 

1,480 

2,790 

1,340 

1,630

1,250 

750 

856 

632 

877

553 

649 

966 

687 

1,040 

1,070

576 

1,560 

1,0^0 

1,300 

757 

931

Concentration 

of suspension 

analyzed 

(ppm)

Percent finer t

0.002 0.004

29

0.008 0.016

34

0.0
PLATTE RIVER BASIN Continued 

MIDDLE LOUP RIVER AT ST. PAUL, NEBR.

LOCATION. At bridge on U. S. Highway 281 at St. Paul, Howard County, 600 feet downstream from gagin

with North Loup River.

DRAINAGE AREA. 7,720 square miles, of which only 3,200 square miles contribute directly to surface 

RECORDS AVAILABLE. Sediment records: April 1946 to September 1950. 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 9,930 ppm July 9; minimum daily, 240 pp

Sediment loads: Maximum daily, 182,000 tons July 9; minimum daily, 190 tons Mar. 11. 

EXTREMES, 1946-50. Sediment concentrations: Maximum daily, not determined; minimum daily, not dete

Sediment loads: Maximum daily, 1,600,000 tons June 23, 1947; minimum daily, not determined. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply P

Chemical analyses, In parts per million, October 1949 to July 

Date of collection

July 9, 1950 ........

Discharge 

(secondfeet)

906 

9,050

Temperature 

(°F)

PH

7.7 

7.2

Specific 

conductance 

(micromhos at 

25° C )

253 

112

Silica 

(Si02 )

51 

18

Iron 

(Fe)

0.02 

.02

Calcium 

(Ca)

34 

12

Magnesium 

(Mg)

4.2 

3.6

Sodium 

(Na)

Potassium 

(K)

14 

3.2

Bicarbonate 

(HCO,)

144 

59

Sulfate 

(SO,)

8.0 

1.0

Chloride 

(Cl)

2.5 

.5
342 MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued

MIDDLE LOUP RIVER AT ST. PAUL, NEBR. Continued 

Suspended sediment, water, year October L949 to September 1950

Day

2

0

12

1 3

23

OR

27

28

30

31 

Total0

g

1 3

18

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

October

Mean

charge 

(secondfeet)

755 

822 

846 

882 

969

930 

943 

1,050 

1,260 

1,400 

1,720 

1,340 

1,220 

1,120 

1,090

1,030 

1,050 

1,020 

969 

1,140

1,160 

1,020 

982 

1,070 

1,030 

1,090 

943 

1,190 

1,230 

1,220 

1,100

33,591

Suspended sediment

Mean 

concentration 

(ppm)

440 

400 

400 

420 

480

410 

570 

600 

720 

1,190

1,400 

1,020 

910 

910 

850

610 

590 

710 

770 

800

1,040 

1,080 

1,120 

1,270 

1,130

940 

650 

780 

860 

1,010 

1,190

--

Tons 

per 

day

900 

890 

910 

1,000 

1,260

1,030 

1,450 

1,700 

2,450 

4,500

6,500 

3,690 

3,000 

2,750 

2,500

1,700 

1,670 

1,960 

2,010 

2,460

3,260 

2,970 

2,970 

3,670 

3,140

2,770 

1,650 

2,510 

2,860 

3,330 

3,530

76, 990

January

860 

820 

520 

280 

210 

280 

230 

250 

410 

540 

680 

750 

920 

950 

870 

840 

800 

780 

730 

720

850 

920 

890 

900 

940

1,000 

1,000 

840 

570 

570 

690

21,610

910

710

400 

400 

420

540 

440

1,000

1,060 

1,030 

750

970 

790

460

--

2,110 

el, 900 

e 1, 100 

e550 

400

e650 

eSOO 

270 

440 

610

990 

890 

el, 500 

e2, 200 

e2,300

2,270 

e 2, 000 

2,230 

2,030 

1,460

2,230 

1,960 

e I, 600 

e I, 600 

e I, 700

el, 700 

e I, 600 

1,040 

e600 

e750 

e 1, 100

42,280

November

Mean

charge 

(secondfeet)

1,030 

943 

1,050 

995 

943

1,060 

1,090 

943 

1,020 

1,100 

995 

1,220 

1,340 

1,070 

906

930 

956 

969 

906 

870

995 

930 

1,090 

969 

969

1,010 

1,020 

918 

956 

995

30,188

Suspended sediment

Mean 

concentration 

(ppm)

980 

920 

1,010 

1,060 

1, 160

1,170 

1,160 

1,170 

1, 160 

1, 190 

1,170 

1,070 

1,100 

1,150 

1,300

1,300 

1,410 

1,820 

1,670 

1,360

1,780 

1,960 

1,770 

1,190 

1,170 

1,500 

1,350 

1,210 

1,420 

1,630

Tons 

per 

day

2,730 

2,340 

2,860 

2,850 

2,950

3,350 

3,410 

2,980 

3,190 

3,530

3,140 

3,520 

3,980 

3,320 

3,180

3,260 

3,640 

4,760 

4,090 

3,200

4,780 

4,920 

5,210 

3,110 

3,060

4,090 

3,720 

3,000 

3,670 

4,380

106,200

February

890 

960 

910 

880 

940 

920 

930 

1,000 

1,200 

1,200

1,200 

1,300 

1,100 

1,100 

1,100 

1,100 

1,000 

1,100 

1,300 

1,600

1,700 

1,500 

1,500 

1,400 

1,300

1,300 

1, 500 

1,600

33, 530

430 

340 

370 

370 

310 

470 

540 

570

470 

380

270 

270 

280 

240 

420 

500 

650

550 

480 

470 

460

540 

550 

540

el, 500 

el, 700 

1,060 

810 

940 

920 

780 

1,270 

1,750 

1,850 

1,520 

1,330 

el, 000 

800 

800

830 

650 

1,250 

1,760 

2,810 

e3,000 

2,230 

1,940 

1,780 

1,610

1,900 

2,230 

2,330

42,350

December

Mean

charge 

( second - 

feet)

1,050 

906 

930 

943 

1,030

1,050 

918 

700 

600 

630 

610 

480 

180 

250 

230

440 

780 

1,100 

1,200 

770

880 

930 

910 

940 

870 

870 

1,100 

1,100 

1,000 

880 

790

25,067

S ispended sediment

Mean 

concentration 

(ppm)

1,680 

1,320 

1,560 

1,410 

1,770

1,970 

2,230

1,850 

1,910

690 

640

950 

970 

1,310 

2,110

1,840

1,100 

1,460 

1,750 

1,650 

1,440 

1,230

-

Tons 

per 

day

4,760 

3,230 

3,920 

3,590 

4,920

5,590 

5,530 

e4,900 

e3,500 

3,150 

e4,200 

2,480 

e340 

470 

400

1,130 

2,040 

3,890 

6,840 

e3,900

e4, 400 

4,620 

e4, 400 

e4,200 

e3,200 

2,580 

4,340 

5,200 

4,460 

3,420 

2,620

112,200

March

1,600 

1,600 

1,400 

1,400 

1,700

3,200 

1,800 

420 

340 

280

200 

310 

320 

1,000 

1,600 

1,900 

2,200 

1,900 

1,700 

1,300

1,100 

1,600. 

2,000 

2,640 

2,420

1,960 

1,880 

1,380 

1,290 

1,350 

1,050

44, 840

570 

480 

380 

480 

980 

3,510

2,660

280 

860 

1,690

2,740 

2,430

2,590 

2,240

2, 120 

2,990 

2,610 

2,980 

2,410

2,080 

1,740 

1,500 

1,660 

1,830 

1,940

-

2,460 

2,070 

1,440 

1,810 

4,500 

S 28, 600 

e 17, 000 

e 1, 800 

2,440 

el, 100 

e!90 

e200 

240 

2,320 

7,300 

14, 100 

14,400 

612,000 

11,900 

7,860

6,300 

12,900 

14,~100 

21,200 

15,700

11,000 

8,830 

5,590 

5,780 

6,670 

5,500

247, 300

e Estimated.

s Computed by subdividing day.
PLATTE RIVER BASIN 343

PLATTE RIVER BASIN Continued

MIDDLE LOUP RIVER AT ST. PAUL, NEBR. Continued 

Suspended sediment, water year October 1949 to September 1950--Continued

Day

0

23

25

31 

Total -

2

3

0

19

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

April

Mean

charge 

(secondfeet)

1,050 

1,060 

1,300 

1,350 

1,370

1,240 

1,320 

1,380 

1,410 

1,410

1,320 

1,380 

1,290 

1,230 

1,220

1,340 

1,460 

1,320 

1,340 

1,230

1,160 

1,030 

1,200 

1,380 

1,450

1,300 

1,130 

1,030 

1,240 

1,300

38,240

Suspended sediment

Mean 

concentration 

(ppm)

1,760 

1,590 

1,900 

2, 100 

1.760

1,480 

1,040 

1,140 

1,350 

1,410

1,410 

1,490 

1,320 

1,140 

1,120

1,180 

1,040 

740 

1,020 

1,050 

1,180 

930 

1,020 

1,080 

1,220

l,07t> 

920 

960 

1,390 

1,460

Tons 

per 

day

4,990 

4,550 

6,670 

7,660 

6,510

4,960 

3,710 

4,250 

5,140 

5,370

5,030 

5,550 

4,600 

3,790 

3,690

4,270 

4,100 

2,640 

3,690 

3,490 

3,700 

2, 590 

3,310 

4,020 

4,780

3,760 

2,810 

2,670 

4,650 

5,120

132, 100

July

670 

700 

788 

788 

846

918 

834 

810 

6,510 

4,830

2,480 

2,660 

1,500 

1,130 

969 

1,260 

1,200 

1,430 

1,810 

1,700

1,510 

2,130 

4,230 

5,380 

2,120

1,350 

1,230 

930 

788 

969 

930

55,400

450 

500 

570 

620 

620 

810 

760 

590 

9,930 

8,180

5,760 

4,610 

3,980 

2,760 

1,670 

1,510 

1,410 

1,480 

1,950 

2,200

1,580 

3,590 

6,410 

7,900 

4,800

2,360 

2,130 

1,270 

1,290 

1,110 

720

-

810 

950 

1,210 

1,320 

1,420

2,010 

1,710 

1,290 

s 182, 000 

s 10 5, 000

s39, 100 

33,100 

s 16, 300 

8,420 

4,370 

5,140 

4,570 

5,710 

9,530 

10, 100

6,440 

s 20, 800 

s 82, 200 

5115,000 

s 30, 800

8,600 

7,080 

3,190 

2,740 

2,900 

1,810

715,600

May

Mean

charge 

(secondfeet)

1,230 

1,070 

1,160 

1,140 

1,450

1,530 

1,460 

1,450 

1,810 

1,700

1,240 

1,120 

1,300 

1,260 

1,170

1,220 

1,160 

1,100 

3,920 

2,940

2,440 

1,810 

1,290 

1,020 

1,090

1,090 

1,220 

1,540 

2,010 

1,460 

1,130

46, 530

Suspended sediment

Mean 

concentration 

(ppm)

1,310 

1,120 

1,290 

1,300 

1,860

1,840 

1,450 

1,330 

1,640 

1,970

1,420 

1,120 

1,030 

1,010 

900

950 

840 

912 

6,640 

4,660

3,220 

2,850 

1,690 

1,230 

1,400

1,210 

870 

1,020 

3,980 

2,780 

1,310

Tons 

per 

day

4,350 

3,240 

4,040 

4,000 

7, 280

7,600 

5,720 

5,210 

8,020 

9,040 

4,760 

3,390 

3,620 

3,440 

2,840

3,130 

2,630 

2,710 

s 7 1,800 

37,000

21,200 

13,900 

5,890 

3,390 

4,120

3,560 

2,870 

4,240 

s 23, 700 

s 11, 400 

4,000

292, 100

August

906 

930 

834 

846 

1,030

918 

995 

1,030 

894 

1,070

1,140 

1,120 

1,420 

3,140 

2,070 

1,820 

1,600 

1,560 

2,050 

1,670

1,300 

982 

882 

870 

982 

1,100 

1,260 

1,420 

1,160 

1,030 

943

38,972

740 

770 

640 

570 

1,310 

710 

620 

750 

680 

890

670

4,130 

2,400 

1,780 

1,110 

950 

1,990 

3,340

2,070 

1,330 

1,020 

690 

730 

690 

840

820 

980 

770

1,810 

1,930 

1,440 

1,300 

3,640

1,760 

1,670 

2,090 

1,640 

2,570

2,060 

e 2, 200 

e 7, 600 

s 36, 100 

13,400 

8,750 

4,800 

4,000 

s 14, 000 

si 5, 900

. 7,270 

3,530 

2,430 

1,620 

1,840 

2,050 

s3,000 

e5, 500 

2,570 

2,730 

1,960

163,300

June

Mean

charge 

(secondfeet)

1,010 

1,020 

995 

956 

870

799 

744 

740 

730 

700

680 

650 

630 

1,190 

1,010

1,010 

1.320 

3,120 

1,900 

1,230

918 

810 

777 

766 

700

640 

640 

755 

722 

680

28,712

Suspended sedinent

Mean 

concentration 

(ppm)

1,000 

780 

870

740

740 

640 

510 

500 

400 

380 

400 

410 

2,000 

1,730

780

7,520 

6,420 

2,470

1,560 

930 

720 

620 

580

580 

500 

860 

800 

500

Tens 

pi»r 

drv

2,730 

2,150 

2,340 

e2,300 

1,740

1,600 

1,290 

1,020 

990 

760 

700 

700 

700 

6,430 

4,850

2,130 

e 7, 700 

s 66, 700 

3?, 900 

8,200

3,870 

2,030 

1,510 

1,280 

1,100

1,000 

860 

1,750 

1,560 

920

163,800

September

1,030 

1,030 

982 

834 

788

711 

744 

744 

744 

744

744 

882 

882 

882 

943 

1,050 

1,070 

930 

1,010 

1,720 

1,450 

1,240 

1,120 

1,090 

1,050

995 

969 

1,030 

1,140 

1,130

29, 678

600 

590 

600 

450 

390

540 

630 

600 

480 

450

480 

730 

630 

560 

590 

740

750 

830 

3,010

2,550 

1,680 

1,000 

820 

640

670 

780 

740 

680 

740

1,670 

1,640 

1,590 

1,010 

830

1,040 

1,270 

1,210 

960 

900

960 

1,740 

1,500 

1,330 

1,500 

2,100 

e3,400 

1,880 

2,260 

s 17, 400 

9,980 

5,620 

3,020 

2,410 

1,810

1,800 

2,040 

2,060 

2,090 

2,260

79, 300

Total discharge for year (second-foot-days). 

Total load for year (tons).................

426,358 

2,17'', 000

e Estimated.

s Computed by subdividing day.

326665 O - 55 - 23
PLATTE RIVER BASIN Continued 

MIDDLE LOUP RIVER AT ST. PAUL, NEBR. Contin

Particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Oct. 6, 1949 ............

Feb. 9. .................

Mar. 1 .................

Mar. 21 ................

Mar. 30 ................

Mar. 30 ................

May 10 .................

May 19 .................

May 19 .................

May 21 .................

Time

12:50 p. m. 

12:30 p. m. 

5:15 p. m. 

5:45 p.m. 

5:45 p. m.

3:50 p.m. 

3:45 p.m. 

4:20 p. m. 

4:20 p. m. 

5:30 p. m.

5:05 p. m. 

5:00 p. m. 

4:50 p.m. 

6:05 p. m. 

4:45 p.m.

5:20 p. m. 

1:00 p.m. 

3:15 p. m. 

3:40 p. m. 

5:10 p. m.

3:00 p. m. 

5:50 a.m. 

12:05 p. m. 

12:05 p. m. 

5:45 p. m.

11:10 a. m. 

5:15 p. m. 

8:00 p. m.

Discharge 

(secondfeet)

894 

1,450 

1,920 

1', 230 

1,230

1,120 

894 

672 

672 

812

852 

1,200 

1,530 

298 

1,090

1,090 

2,480 

1,370 

1,370 

1,750

1,720 

4,190 

5,120 

5,120 

4,750

2,530 

2,530 

2,610

Suspended sedi

Concentration 

of sample 

(ppm)

367 

1,270 

1,520 

912 

912

1,070 

1,290 

1,720 

1,720 

1,190

634 

564 

595 

2,310 

2,180

2,200 

3,070 

1,810 

1,360 

1,440

2,440 

7,290 

8,530 

8,530 

6,190

3,140 

5,680 

8,050

Concentration 

of suspension 

analyzed 

(ppm)

334 

1,610

588 

575

785 

1,000 

837 

290

742 

472 

2,420 

4,030

4,170 

3,360 

2,780 

1,740 

1,760

3,350 

12,800 

4,880 

4,670 

12,400

5,140 

11,200 

4,280

Percent finer 

0.002

-

"

7 

6

4 

4

4 

9

0.004

22

1

5 

6

4 

5

5 

7 

11 

10 

19

45 

16 

27 

22 

38

42 

37 

48

0.008

25 

10

2 

10

9 

7

8 

7

14

35' 

31

56

0.016

27 

14

6 

14

10 

11 

10 

7

9 

9

13

17 

24

54 

24 

39 

38 

49

52 

51 

63

0
May 29 .................

May 30 .................

June 18 ..................

June 18 ..................

July 9

July 27 .................

Sept. 3 .................

Sept. 12 ................

Sept. 20 ................

Sept. 22 ................

6:40 p. m.

9:15 a.m.

2,610

1,400

870

a 700

1,580

3,720

3,720

1,600

755

1,170

1,100

3,420

969

894

2,250

1,280

8,090

3,200

720

350

1,250

8,760

8,760

4,910

800

10, 800

2,020

1,520

4,610

530

760

3,910

1,700

4,800

5,710

1,140

1,080

3,600

5,100

8,800

9,760

10, 000

11,600

2,710

3,450

2,930

2,610

2,790

1,200

2,130

3,000

16__

21

30

16_

--

26

49

12

26

15

SO

28

39

32

65

35

22

32

42

28

39

42

13

176

35

40___

34

48

44_

13

--

53

60

15

34

26

64

43

56

54

79

46

31

47

52

47

55

23

20

21

17

11

44

a Mean dally discharge.
346 MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued 

SOUTH LOUP RIVER AT ST. MICHAEL, NEBR.

LOCATION. At gaging station at county highway bridge, 0.8 mile northeast of St. Michael,

Buffalo County, and 5 miles upstream from Sweet Creek. , 

DRAINAGE AREA. 2,560 square miles, of which only about 1,650 square miles contribute

directly to surface runoff.

RECORDS AVAILABLE. Sediment records: June 1946 to September 1950. 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 13,900 ppm July 10; minimum

daily, 50 ppm Jan. 29, Feb. 4, 5 13.

Sediment loads: Maximum daily, 52,500 tons July 24; minimum daily, 20 tons Jan. 29. 

EXTREMES, 1946-50. Sediment concentrations: Maximum daily, 19,100 ppm June 19, 1946;

minimum daily, 30 ppm Nov. 20-21, 1948. 

Sediment loads: Maximum daily, 672,000 tons June 22, 1947; minimum daily, 14 tons

Nov. 20, 1948. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in

Water-Supply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

q

n

16 

17 ......

18 

19 

20 

21 . 

22 

23-- 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

October

Mean

charge 

(secondfeet)

140 

144 

148 

154 

160 

162 

166 

166 

174 

214

233 

258 

216 

194 

192

187 

192 

187 

187 

194

192 

192 

190 

192 

187

192 

192 

192 

192 

197 

192

5,778

Suspended sediment

Mean 

concentration 

(ppm)

330 

310 

310 

330 

330 

270 

280 

320 

920

1,240 

1,000 

690 

480 

360

360 

340 

310 

300 

310 

280 

290 

250 

270 

390

360 

240 

330 

350 

260

Tons 

per 

day

e!20 

130 

120 

130 

140 

140 

120 

120 

150 

530

780 

700 

400 

250 

190 

180 

180 

160 

150 

160 

140 

150 

130 

140 

200

e230 

190 

120 

170 

190 

140

6,650

November

Mean

charge 

(secondfeet)

187 

187 

190 

192 

197 

192 

192 

192 

190 

194

192 

194 

202 

192 

192

190 

192 

194 

194 

194

187 

192 

199 

190 

192

192 

190 

187 

190 

190

5,758

Suspended sediment

Mean 

concentration 

(ppm)

300 

280 

260 

280 

270

300 

290 

290 

300 

330

360 

340 

280 

320 

350

330 

300 

270 

230 

270 

270 

310 

350 

330 

350

330 

270 

230 

210 

250

-

Tons 

per 

day

150 

140 

130 

140 

140

160 

150 

150 

150 

170

190 

180 

150 

170 

180

170 

160 

140 

120 

140 

140 

160 

190 

170 

180

170 

140 

120 

110 

130

4,590

December

Mean 

discharge 

(secondfeet)

187 

190 

192 

197 

197

180 

180 

170 170' 

170

140 

100 

120 

140 

170

180 

200 

190 

180 

180 

170 

170 

170 

160 

170

180 

180 

170 

180 

180 

190

5,353

Suspended sediment

Mean 

concentration 

(ppm)

270 

340 

320 

370 

390

380 

360 

290

330

140 

70 

90 

210

200 

110 

100 

110

140 

190 

160 

100 

90

150 

180 

180 

190 

180 

160

-

Tons 

per 

day

140 

170 

170 

200 

210

180 

180 

130 

e!20 

150

e!40 

38 

23 

34 

96

elOO 

110 

56 

49 

53

64 

87 

73 

43 

41

73 

87 

83 

92 

87 

82

3,160
PLATTE RIVER BASIN 347

PLATTE RIVER BASIN Continued

SOOTH LOUP RIVER AT ST. MICHAEL, NEBR. Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

O

13

1 a

99

9ft

27

28- 

29

Total -

g

18

19

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalJanuary

Mean

charge 

(secondfeet)

190 

200 

170 

130 

120

85 

110 

130 

140 

150

160 

160 

180 

180 

170

160 

150 

140 

140 

150

150 

160 

160 

170 

180

180 

180 

170 

1EO 

170 

180

4,865

Suspended sediment

Mean 

concentration 

(ppm)

160 

160 

160 

120 

160

110 

200 

290 

300 

220

180 

140 

140 

110 

100

160 

120 

120 

140 

110

100 

70 

70 

90 

70

100' 

100 

60 

50 

80 

80

Tons 

per 

day

82 

86 

73 

42 

52

25 

59 

100 

110 

89

78 

60 

68 

53 

46

69 

49 

45 

53 

45

41 

30 

30 

41 

34

49 

49 

28 

20 

37 

39

1,680

April

309 

299 

312 

306 

283

283 

286 

286 

286 

296 

283 

272 

255 

258 

247 

252 

242 

238 

235 

223

223 

218 

218 

223 

216 

216 

211 

197 

230 

235

7,638

1,180 

920 

1,140 

1,200 

1,150

1,070 

1,050 

,050 

,350 

,190

,150 

,130 

,150 

1,020 

650 

480 

490

700 

1,130 

1,110 

1,130 

1,180 

1,110 

1,020

650 

900 

930 

940

--

980 

740 

960 

990 

880

820 

810 

810 

1,040 

950 

880 

830 

790 

710 

430

330 

320 

e320 

440 

680

670 

660 

700 

670 

600 

e470 

370 

480 

580 

600

20, 510

February

Mean

charge 

(secondfeet)

180 

170 

170 

180 

170

170 

180 

210 

230 

250

250 

280 

300 

300 

310

290 

280 

320 

530 

530 

520 

460 

430 

450 

380

380 

380 

350

8,650

Suspended sediment

Mean 

concentration 

(ppm)

60 

60 

90 

50 

50

70 

'0 

90 

90 

80

70 

60 

50 

60 

60

80 

110 

220 

600 

380

170 

210

160 

170

290 

430 

460

Tons 

per 

day

29 

28 

41 

24 

23

32 

34 

51 

56 

54

47 

45 

40 

49 

50

63 

83 

s200 

860 

540

240 

260 

e230 

190 

170

300 

440 

440

4,620

May

228 

223 

223 

235 

274 

290 

286 

338 

442 

380

328 

299 

299 

296 

283

277 

260 

335 

882 

570

470 

404 

325 

255 

255 

252 

266 

365 

465 

353 

312

10,475

1,520 

1,230 

890 

1,170 

2,050

1,560 

1,140 

1,150 

4,890 

5,360

3,000 

1,200 

1,050 

1,140 

1,160

1,120 

830 

980 

10,600 

7,900 

5,400 

2,910 

2,450 

1,630 

960 

920 

830 

3,270 

7,340 

4,020 

1,830

940 

740 

540 

740 

1,520

1,220 

880 

1,050 

36,040 

5,500

2,660 

970 

850 

910 

890

840 

580 

890 

526,000 

12,200

6,850 

3,170 

2,150 

1,120 

660 

630 

600 

s 3, 550 

9,220 

3,890 

1,540

99, 340

March

Mean

charge 

(secondfeet)

370 

360 

340 

380 

384

331

290 

210

150

180 

200 

250

420 

400 

366 

344 

348

341 

315 

328 

369 

392

429 

392 

355 

318 

293 

283

9,588

Suspended sediment

Mean 

concentration 

(ppm)

550 

670

930 

1,860

1,220 

200

410

390 

380 

610

2,220 

2,140 

1,450 

1,140 

1,710

2,190 

2,010 

1,840 

2,660 

3,680

2,830 

1,960 

1,660 

1,850 

1,380 

1,200

Ton-5 

per 

day

550 

650 

e720 

950 

1,930

1,090 

e!30 

110

170

190 

200 

410 

2,520 

2,310 

1,430 

1,060 

1,610

2,020 

1,710 

1,630 

2,650 

3,890

3,280 

2,070 

1,590 

1,590 

1,090 

920

38, 980

June

306 

277 

260 

247 

230 

211 

202 

194 

185 

185

187 

190 

190 

223 

218

238 

336 

1,320 

748 

309 

218 

202 

190 

194 

187 

166 

152 

156 

150 

144

8,015

1,230 

1,060 

850 

700

540 

580 

580 

490 

440 

510 

690 

510 

1,090 

700

940 

2,340 

11,500 

9,570 

3,900

2,110 

1,150 

950 

990 

810 

630 

560 

550 

490 

430

-

1,020 

790 

600 

470 

e360

310 

320 

300 

240 

220 

260 

350 

260 

660 

410 

600 

s2,230 

s 44, 100 

19, 300 

3,250

1,240 

630 

490 

520 

410 

280 

230 

230 

200 

170

80,450

! Estimated, 

s Computed by subdividing day
343 MISSOURI RIVER BASIN 

PLATTE RIVER BASIN Continued

SOOTH LOW? RIVER AT ST. MICHAEL, NEBR. Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

13

18

19

on

21

23

24

29

31* 

TotalJuly

Mean

charge 

(secondfeet)

152 

138 

148 

138 

168

168 

158 

152 

761 

860 

565 

537 

424 

331 

260

233 

221 

223 

250 

325

550 

786 

1,270 

1,580 

845 

501 

338 

286 

228 

204 

187

12,987

Suspended sediment

Mean 

concentration 

(ppm)

450 

550 

560 

760

1,330 

1,020 

830 

13, 300 

13,900

3,980 

7,420 

6,350 

4,810 

2,400

1,200 

780 

900 

1,300 

3,100

5,600 

7,580 

10, 200 

12, 300 

6,800 

4,680 

2,470 

2,090 

1,320 

900 

760

Tons 

per 

day

elSO 

170 

220 

210 

340

600 

440 

340 

s 32, 400 

32,300

s 6, 720 

10,800 

7,270 

4,300 

1,680

760 

460 

540 

830 

2,720

8,320 

16,100 

s 36, 100 

52,500 

15,500 

6,330 

2,250 

1,610 

810 

500 

330

243,700

Total discharge for year (second-foot-day 

Total load for year (tons) ..............

August

Mean 

discharge 

(secondfeet)

174 

170 

174 

174 

170

172 

194 

176 

172 

192

172 

182 

674 

1,190 

644

331 

228 

240 

392 

328

260 

197 

180 

172 

168 

176 

182 

194 

190 

194 

185

8,247

Suspended sediment

Mean 

concentration 

(ppm)

590 

600 

610 

460 

490

580 

900 

570 

550 

1,140

630 

1,000 

9,060 

7,780 

4,920 

2,650 

1,200 

2,930 

9,560 

6,450

1,760 

1,040 

820 

660 

830 

970 

900

810 

700

Tons 

per 

day

280 

280 

290 

220 

220

260 

470 

270 

260 

590

290 

490 

817,600 

s 26, 300 

8,560

2,370 

740 

1,900 

si 1,200 

5,710

e 2, 500 

950 

500 

380 

300 

390 

480 

470 

e420 

420 

350

85,460

September

Mean 

discharge 

(second - 

feet)

174 

176 

176 

168 

156

152 

148 

144 

142 

146

150 

158 

170 

176 

216

235 

214 

211 

216 

628

452 

293 

230 

202 

197 

190 

178 

182 

182 

178

6,240

Suspended sediment

B'^an 

ccncent ration 

(ppm)

590 

570 

490 

510 

460

440 

470 

410 

340 

340

370 

410 

480 

450 

440

460 

460 

1,660 

10,600

4,510 

1,550 

820 

700 

660 

660 

640 

700 

570 

480

--

Tons 

per 

day

280 

270 

230 

230 

190

180 

190 

160 

130 

130

150 

180 

220 

210 

260

6360 

270 

260 

970 

s 18, 200

5,500 

1,230 

510 

380 

350 

340 

310 

340 

280 

230

32,540

s) ..................................................... 93,594

........................................................ 621, 700

e Estimated.

s Computed by subdividing day.
PLATTE RIVER BASIN Continued 

SOUTH LOUP RIVER AT ST. MICHAEL, NEBR.--Continu

Particle-size analyses of suspended sediment, water year October 1949 to 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, In distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Oct. 20 ...............

Nov. 2 ................

May 9 .................

May 28 ................

May 28 ................

May 31 ................

Aug. 23 ...............

Sept. 21 ...............

Time

11:45 a.m. 

12:20 p.m. 

3:30 p.m 

12:15 p.m. 

2:45 p.m.

12:45 p.m. 

11:00 a.m. 

11:30 a.m. 

11:45 a.m. 

3:45 p.m.

1:10 p.m. 

1:30 p.m. 

10:30 a.m. 

12:00 m. 

6:15 p.m,

6:15 p.m. 

4:45 p.m. 

11:45 a.m. 

2:40 p.m. 

10:45 a.m.

3:00 p.m. 

11:50 a.m. 

11:50 a.m. 

12:30 p.m. 

1:00 p.m. 

12:10 p.m.

Discharge 

(secondfeet)

166 

216 

202 

194 

185

185 

202 

325 

213 

315

293 

245 

478 

272 

412

412 

315 

148 

156 

174

168 

1,520 

1,520 

176 

168 

447

Suspended sedim

Concentration 

of sample 

(ppm)

332 

657 

308 

366 

308

332 

300 

1,580 

297 

1,830

1,010 

832 

4,610 

1,120 

5,720

5,720 

1,500 

501 

762 

580

652 

5,780 

5,780 

786 

438 

3,190

Concentration 

of suspension 

analyzed 

(ppm)

569 

955 

528 

697 

638

598 

613 

5,970 

1,300 

6,130

3,560 

2,850 

7,600 

1,900 

2,000

1,920 

4,000 

1,740 

4,440 

1,320

2,110 

2,900 

3,030 

1,660 

1,620 

2,970

Percent finer 

0.002 0.004

32 

41 

48 

29 

35

34 

38 

18 

26 

16

13 

14 

7 

18 

30

40 

40 

53 

52

56 

38 

28 

48 

32 

48

0. OOB

39 

48 

54 

36 

41

38 

42

37 

18

46 

34

0.016

46 

55 

59 

44 

48

45 

50 

34 

46 

29

53 

24 

15 

25 

44

39 

56 

55 

70 

67

73 

49 

42 

67 

49 

62

0.
350 MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued 

NORTH LOUP RIVER NEAR ST. PAUL, NEBR.

LOCATION. At bridge on U. S. Highway 281, 60 feet upstream from gaging station, which is

3 miles north of St. Paul, Howard County, and 4 miles upstream from confluence with

Middle Loup River. 

DRAINAGE AREA. 4,460 square miles, of which only about 1,270 square miles contribute

directly to surface runoff. 

RECORDS AVAILABLE. Water temperatures: April to November 1948.

Sediment records: April J.946 to September 1950. 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 12,400 ppm July 23; minimum

daily, not determined.

Sediment loads: Maximum daily, 299,000 tons, July 9; minimum daily, 27 tons Jan. 6. 

EXTREMES, 1946-50. Sediment concentrations: Maximum daily, 17,000 ppm Aug. 12, 1948;

minimum daily, not determined. 

Sediment loads: Maximum daily, 463,000 tons June 22, 1947; minimum daily, 30 tons Aug.

3, 1946. 

REMARKS. Records of discharge for water year October 1949 to September 19fO given in

Water-Supply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

1 

2

3

4 

5 

7... 

Q

g

10 

11 

12 T

13

14 ......

15 

16-- -

17 

18 -

19 - 

20 

21 

22 

23 

24- 

25 

26 

27 

28 

29 

30 ......

31- 

Total -

October

Mean 

discharge 

(secondfeet)

742

742

732

700

700

749 ***&

752

7co IDA

752

946

1,080

1,100

1,050

920

862

851

851

862

874

897

972

933

920

851

851

840

828

828

840

840

840

26,450

Suspended sediment

Mean 

concentration 

(ppm)

270

310

330

270

270

320

340

410

460

700

700

580

490

380

340

330

300

310

320

40C

590

550

440

440

430

390

420

420

370

390

430

Tons 

per 

day

541

621

652

510

510

641

690

009

OO6

934

1,790

2 040

1*720

1 390

944

791

758

689

721

755

969

1,550

1,390

1,090

1,010

988

885

939

939

839

885

975

29,990

November

Mean 

discharge 

(secondfeet)

805

828

816

828

828

816

805

805

805

805

840

886

920

920

862

886

874

874

862

851

851

840

828

816

862

840

805

805

816

840

25,219

Suspended sediment

Mean 

concentration 

(ppm)

470

470

470

400

320

340

370

380

380

380

400

460

530

500

510

520

450

390

370

420

530

570

530

500

450

500

420

400

440

400

Tons 

per 

day

1,020

1,050

1,040

894

715

749

804

804

826

826

907

1,100

1,320

1,240

1,190

1,240

1,060

920

861

965

1,220

1,290

1,180

1,100

1,050

1,130

913

869

969

907

30, 160

December

Mean 

discharge 

(secondfeet)

851

828

862

886

874

anrj O3l

908

820

760

650

600

390

250

180

390

660

1,000

1,100

1,100

1,100

890

720

650

660

760

690

690

710

780

810

810

23,276

Suspended sediment

J"<>an 

concentration 

(fpm)

420

480

470

460

530

550

530

640

1,040

230

350

480

640

720

640

610

--

420

480

440

--

560

670

750

780

770

~

Tons 

per 

day

965

1,070

1,090

1,100

1,250

1,330

1,300

el, 200

e 1, 200

1,120

si, 700

e850

155

e95

369

855

1,730

2,140

1,900

1,810

el, 200

816

842

784

e900

e900

1,040

1,280

1,580

1,710

1,680

35,960

e Estimated.

s Computed by subdividing day.
PLATTE RIVER BASIN 

HATTE RIVER BASIN Continued

NORTH LOUP RIVER NEAR ST. PAUL, NEBR. Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

351

Day

2

9

j^

12

13

i fl

20

94

94

25

no

9Q

30 

TotalJj

g

12

1 o

1 fl

20

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalJanuary

Mean

charge 

(secondfeet)

690 

680 

470 

260 

290

250 

430 

590 

710 

760

780 

780 

760 

730 

700

680 

650 

680 

730 

720

770 

780 

800 

820 

850

580 

640 

690 

740 

790 

720

20, 520

Suspended sediment

Mean 

concentration 

(ppm)

650

40

310

360 

290 

280 

250

130

80 

80

180 

290

120 

150 

140

--

Tons 

per 

day

1,210 

el, 000 

eSOO 

eSO 

elOO

27 

el20 

e280 

e480 

636

758 

611 

575 

493 

e360 

239 

e!60 

147 

158 

180

240 

379 

626 

e650 

e550

e260 

e220 

224 

300 

299 

e220

12,050

April

1,430 

1,500 

1,640 

1,430 

1,230

1,100 

1,100 

1,050 

1,110 

1,120 

1,020 

1,020 

998 

1,010 

998

998 

959 

998 

1,010 998

959 

908 

886 

886 

946

897 

862 

920 

1,110 

1,050

32, 143

970 

950 

1,070 

1,030 

840

710 

610 

660 

760 

730

700 

640 

660 

600 

510

510 

460 

570 

660 

700

600 

540 

390 

400 

580

600 

450 

460 

680 

730

3,750 

1,385 

4,740 

3,980 

2,790

2,110 

1,810 

1,870 

2,280 

2,210

1,930 

1,760 

1,780 

1,640 

1,370

1,370 

1,190 

1,540 

1,800 

1,890

1,550 

1,320 

933 

957 

1,480

1,450 

1,050 

1,140 

2,040 

2,070

59,650

February

Mean

charge 

(second - 

feet)

700 

700 

760 

760 

790

790 

840 

910 

990 

990

990 

970 

940 

890 

850

830 

870 

960 

1,100 

1,200

1,200 

1,100 

1,100 

1,300 

1,300

1,200 

1,300 

1,700

28,030

Suspended sediment

Mean 

concentration 

(ppm)

100 

90 

100 

130 

140

140 

150 

170 

230 

250

200 

180

290 

270 

240

260 

240 

180 

140 

160

180 

190 

440

Tons 

per 

day

189 

170 

205 

267 

299

299 

340 

418 

615 

668

535 

471 

e460 

eSOO 

e600

eSSO 

e500 

752 

802 

778 

842 

713 

535 

491 

562 

583 

667 

si, 980

15,790

May

920 

946 

985 

1,010 

1,140

1,280 

1,330 

1,660 

1,780 

1,460

1,360 

1,280 

1,390 

1,250 

1,120

1,060 

1,040 

1,020 

2,270 

1,340 

1,360 

1,260 

1,170 

1,040 

946

985 

998 

1,140 

 1,220 

1,170 

998

37 928

630 

530 

500 

560 

1,180 

1,000 

520 

2,650 

2,700 

1,350

610 

490 

610 

540 

410 

500 

410 

480 

4,900 

3,420

1,800 

830 

570 

460 

420

480 

490 

540 

610 

530 

340

~

1,560 

1,350 

1,330 

1,530 

3,630

3,460 

1,870 

s 13, 300 

13,000 

5,320 

2,240 

1,690 

2,290 

1,820 

1,240 

1,430 

1,150 

1,320 

s 32, 800 

12,400

6,610 

2,280 

1,800 

1,290 

1,070

1,280 

1,320 

1,660 

2,010 

1,670 

916

127, 200

March

Mean

charge 

(second - 

feet)

1,800 

1,300 

1,100 

1,300 

2,300

2,000 

1,600 

350 

210 

220

350 

740 

1,100 

1,300 

1,300 

1,440 

1,600 

1,600 

1,500 

1,100

1,200 

1,800 

3,500 

2,600 

2,050

1,780 

2,020 

1,550 

1,200 

1,110 

1,230

44,210

Suspended sedi-nent

Mean 

concentration 

(ppm)

660 

350 

190 

140

2,290

380 

420 

350

340 

530 

580 

600 

450

410 

1,000 

4,100 

3,810 

2,200 

1,420 

1,540 

1,500 

1,110 

900 

1,050

Tons

PIT 

dr**

3,210 

1,230 

564 

491 

e It, 000

s 11,000 

e6,300 

e600 

e280 

e240

e360 

e750 

1,130 

1,470 

1,230

1,290 

2,290 

2,510 

2,430 

1,340 

1,330 

4,860 

3* 800 

21' 700 

12,000

6,820 

8,400 

6,280 

3,600 

2,700 

3,490

169,700

June

920 

874 

920 

851 

874

886 

816 

732 

672 

614

596 

578 

560 

752 

794

742 

972 

972 

998 

897 

851 

794 

763 

681 

605

560 

560 

551 

551 

551

22,496

270 

280

330 

320 

260 

210 

200 

240

230 

220 

300 

1,250 

780

490 

2,480 

1,800 

870 

430

340 

390 

420 

330 

280

320 

270 

220 

210 

220

~

671 

661 

e700 

e700 

779

776 

573 

415 

363 

398

370 

343 

461 

2,540 

1,670

982 

6,510 

4,720 

2,340 

1,040 

781 

836 

865 

607 

457

484 

408 

327 

312 

327

32,420

e Estimated.

s Computed by subdividing day.
352 MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued

NORTH LOUP RIVER NEAR ST. PAUL, NEBR. Centinued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day

20

91

9Q

31 ......

TotalJuly ]

Mean 

discharge 

(secondfeet)

533 

574 

824 

662 

710

784 

721 

837 

10,200 

2,350

1,280 

1,950 

1,010 

934 

852

1,090 

1,230 

2,540 

3,090 

1,480

1,270 

1,270 

6,590 

2,570 

1,210

1,060 

962 

915 

852 

817 

769

51,936

Suspended sediment

Mean 

concentration 

(ppm)

240

850 

700

600 

400

9,710 

4,100

6,490

1,700 

640 

600

1,800 

1,850 

5,720 

5,600 

2,350

1,480 

1,060 

12., 400 

5,900 

2,160

1,080 

810 

610 

490 

440 

390

Tons 

per 

day

345 

e 2,400 

e 10, 000 

1,520 

1,340

1,270 

779 

e3,500 

s 299, 000 

26,000

s 24, 200 

653,000 

4,640 

1,610 

1,380 

5,300 

6,140 

s 47, 300 

46,700 

9,390

5,070 

3,630 

s 212, 000 

40,900 

7,060

3,090 

2,100 

1,510 

1,130 

971 

810

824, 100

Total discharge for year (second-foot-clay 

Total load for year (tons). ..............

August

Mean

charge 

(secondfeet)

745 

737 

713 

745 

817

769 

834 

924 

982 

1,210

1,380 

1,060 

1,340 

1,280 

1,140

891 

897 

861 

962 

962 

897 

817 

761 

705 

689

705 

769 

915 

852 

753 

745

27,957

Suspended sediment

Mean 

concentration 

(ppm)

420 

410 

350 

360 

560

660 

640 

380 

490 

990

1,530 

840 

1,220 

1,160 

950 

520 

370 

400 

510 

740

480 

310 

340 

380 

330

310 

440 

620 

550 

370 

370

Tons 

per 

day

845 

816 

674 

724 

1,240

1,370 

1,440 

1,200 

1,300 

3,230

5,700 

2,400 

4,410 

4,010 

2,920

1,390 

896 

930 

1,320 

1,920

1,160 

684 

699 

723 

614

590 

914 

1,530 

1,270 

753 

744

48,420

September

Mean

charge 

(secondfeet)

729 

737 

718 

689 

673

623 

616 

623 

602 

588

556 

550 

588 

602 

658

870 

1,160 

1,010 

982 

962

1,010 

1,100 

1,210 

1,100 

982

934 

924 

870 

843 

843

24,352

Suspended sediment

Mean 

comentra'jon 

(ppm)

390 

390 

320 

290 

230

240 

230 

200 

210 

400

230 

240 

290 

320 

410

640 

840 

570 

400 

390

490 

720 

760 

530 

390

340 

280 

240 

250 

230

5) ...................................................

Tons 

per 

day

768 

776 

620 

539 

509

404 

383 

336 

341 

635

345 

356 

460 

520 

728

1,500 

2,630 

1,550 

1,060 

1,010

1,340 

2,140 

2,460 

1,570 

1,030

857 

699 

564 

569 

523

27,240

364,517 

1,413,000

e Estimated.

s Computed by subdividing day.
PLATTK RIVER BASIN Continued 

NORTH LOUP RIVER NEAR ST. PAUL, NEBR. Conti

Particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

May 20 .................

Tnlv Q

July 12 .................

July 18 .................

Time

4:35 p.m. 

4:30 p.m. 

4:10 p.m. 

12:05 p.m. 

5:35 p.m.

3:45 p.m. 

9:45 a. m. 

2:45 p.m. 

5:30 p. m. 

3:15 p.m.

1:00 p.m. 

2:30 p.m. 

11:25 a. m. 

5:00 p. m. 

1 :00 p. m.

1:00 p.m. 

11:00 a.m. 

1:15 p.m. 

2:05 a. m. 

4:40 a.m.

11:15 a. m. 

4:30 p.m. 

12:30 p. m. 

6:30 p. m. 

5:00 p.m.

9:45 a. m. 

5:00 a.m. 

5:30 p.m. 

3 :00 p. m. 

10:30 D. m.

Discharge 

(secondfeet)

742 

874 

816 

805 

828

650 

980 

1,700 

1,900 

1,200

1,100 

2,490 

1,110 

1,040 

1,500

1,500 

1,800 

908 

1,880 

2,150

3,910 

1,330 

1,100 

752 

897

1,080 

10,300 

1,270 

1,510 

5,280

Suspended sedi

Concentration 

of sample 

(PPm)

431 

393 

368 

488 

422

654 

256 

542 

1,940 

379

374 

4,240 

852 

837 

1,950

1,950 

2,650 

338 

2,310 

5,410

6,500 

3,540 

422 

229 

2,360

1,910 

14,900 

4,300 

3,200 

10/100

Concentration 

Of suspension 

analyzed 

(ppm)

347

384 

333

470 

400

543 

6,670 

1,680 

1,410 

2,200

2,170 

9,340

3,590 

9,010

9,420 

6,740 

1,240 

829 

1,170

4,280 

6, "90 

4,960 

6,230 

6.180

Percent finer 

0.002 0.004

6 

8 

13 

33

21

30

20 

31

14 

57 

23 

24 

53

29 

9,1 

41 

22 

35

0.008

4 

3

3 

5

40 

29

61 

38

0.016

6

6 

5

5

8

8 

9

17 

49

42 

42

27 

51

21

74 

30 

33 

74

49 

38 

56 

32

45

0
PLATTE RIVER BASIN Continued 

NORTH LOUP RIVER NEAR ST. PAUL, NEBR. Continu

Date of collection

July 24 .................

Sent. 25 .................

Time

10:30 p.m. 

6:35 p.m. 

1:45 p.m. 

10:40 a. m. 

10:40 a. m.

1 :00 p. m. 

8:25 p.m. 

4:15 p. m. 

2:00 p. m. 

3:30 p. m.

1:10 p.m. 

6:30 p.m. 

5:30 p. m. 

6:20 p.m. 

6:00 D. m.

Discharge 

(secondfeet)

5,280 

2,060 

1,390 

7,600 

7,600

8,150 

7,980 

1,880 

737 

1,040

1,590 

1,050 

943 

609 

972

Suspended sedim

Concentration 

of sample 

(ppm)

10, 100 

4,080 

1,980 

11,000 

11,000

9,080 

11,400 

7,370 

353 

617

1,500 

860 

656 

190 

368

Concentration 

of suspension 

analyzed 

(ppm)

6,370 

4,500 

4,460 

7,220 

7,070

8,610 

13,100 

7,370 

1,180 

1,430

2,520 

1,850 

2,810 

993 

1.720

Percent finer t

0.002 0.004

22

57 

51 

21

32 

29 

55 

23 

27

19 

47 

15

15

0.008

36

28 

32

35

18 

26

17

0.016

40 

70 

66 

35 

39

45 

43 

67 

36 

39

29 

63 

23 

36 

22

0.0
PLATTE RIVER BASIN 355

PLATTE RIVER BASIN Continued 

BEAVER CREEK AT LORETTO, NEBR.

LOCATION. At county highway bridge just upstream from gaging station at west edge of Loretto,

Boone County.

DRAINAGE AREA. 311 square miles. 

RECORDS AVAILABLE. Water temperatures: April 1948 to March 1949.

Sediment records: June 1946 to September 1950. 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, 6,500 ppm June 2; minimum daily,

not determined.

Sediment loads: Maximum daily, 39,000 tons June 2; minimum daily, 1 ton Jan, 14, 18. 

EXTREMES, 1946-50. Sediment concentrations: Maximum daily, 11,200 ppm May 15, 1947, minimum 

daily, not determined. 

Sediment loads: Maximum daily, 39,000 tons June 2, 1950; minimum daily, 1 ton Feb. 6, 7,

9, 1948, Jan. 14, 18, 1950.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in WaterSupply Paper 1176.

Suspended sediment, water year October 1949 to September 1950

Day

17 ...

IB 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

charge 

(secondfeet)

41 

41 

41 

41 

41

42 

43 

44 

45 

59 

72 

58 

52 

47 

47

47 

47 

48 

48 

48

49 

49 

49 

48 

48

48 

48 

49 

49 

48 

48

1,485

Suspended sediment

Mean 

concentration 

(ppm)

87 

86 

78 

87

170 

140 

84 

88 

250 

270 

170 

140 

120

120 

110 

120 

97 

94

110 

100 

110 

82 

78

120 

92 

94 

93 

70

-

Tons 

per 

day

e9 

10 

10 

9 

10

19 

16 

10 

11 

40 

52 

27 

20 

15 

e!4

15 

14 

16 

13 

12

15 

13 

15 

11 

10

e!6 

16 

12 

12 

12 

9

483

November

Mean 

discharge 

(secondfeet)

48 

49 

49 

49 

49

50 

50 

50 

50 

50

50 

51 

53 

52 

51

50 

50 

50 

52 

52

51 

51 

52 

52 

54

53 

53 

53 

52 

52

1,528

Suspended sediment

Mean 

concentration 

(ppm)

120 

88 

95 

82

96 

96 

76 

82

100

100 

98 

100

90 

78 

82

79 

88 

62 

56 

74 

80

64 

73 

57 

50

--

Tuns 

per 

day

16 

12 

13 

11 

e!2

13 

13 

10 

11 

el2

14 

e!4 

14 

14 

14

12 

11 

11 

ell 

11 

12 

9 

8 

10 

12

e9 

9 

10 

8

7

343

September

Mean

charge 

(secondfeet)

52 

52 

52 

52

51

50 

45 

40 

42 

54 

53 

50 

47 

44 

44

45 

48 

50 

52 

55

40 

51 

51 

51 

50 

48 

50 

51 

50 

51 

52

1,523

Suspended sediment

Mean 

concentration 

(ppm)

47 

58 

56 

52 

50

50

110 

160

140 

82 

70 

92 

110

120

110 

76 

74

65 

62 

44

46

91 

92 

62 

58

71

--

Tois 

ppr 

day

7 

8 

8

7 

 7

7 

e!2 

12 

18 

e30 

20 

11 

9 

11 

13

15 

e!4 

15 

11 

11

7 

9 

6 

e7 

6

12 

12 

9 

8 

10 

elO

342
356 MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued

BEAVER CREEK AT LORETTO, NEBR. Continued

Suspended sediment, water year October 1949 to September 1950--Continued

Day

2

19

1 fl

23

25 

29

31 

Total2

5 

12

15 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

January

Mean

charge 

(secondfeet)

51 

50 

40 

38 

38

36 

37 

39 

40 

37

34 

37 

37 

32 

34

34 

36 

34 

36 

39 

40 

38 

37 

38 

35

30 

40 

44 

44 

41 

45

1,191

Suspended sediment

Mean 

concentration 

(ppm)

62

} -

38 

27 

24 

28 

27

18 

24 

20 

17 

18

22 

21

28 

31 

38 

42

27

32

81 

58 

26

-

Tons 

per 

day

9 

e6

4 

3 

3 

3 

3

2 

2 

2 

1 

2

2 

2

el 

3 

3

4 

4 

3 

e3 

e2

e2 

3

e7 

10 

6 

3

116

April

130 

117 

114 

106 

101 

95 

90 

90 

91 

88

85 

84 

83 

82 

79

77 

77 

74 

72 

68

68 

65 

63 

60 

59

58 

58 

59 

69 

86

2,448

500 

210 

230 

260 

220

260 

150 

140

160 

140 

160 

110 

97 

130 

150 

150 

130 

120

80 

170

140 

91

81 

81 

65

-

180 

66 

71 

74 

60 

67 

36 

34 

e44 

e40

37 

32 

36 

24 

21

27 

31 

30 

25 

22is'

30 

e34 

23 

14

13 

13 

10 

ell 

e26

1,150

February

Mean

charge 

[secondfeet)

45 

45 

45 

45 

49

52 

57 

62 

60 

58

58 

59 

50 

57 

63

63 

61 

64 

54 

61

60 

52 

62 

58 

46

57 

61 

80

1,584

Suspended sediment

Mean 

concentration 

(ppm)

24

40 

48

45 

62 

150 

150 

140

} "

130 

160

61 

32 

37 

45 

130 

130 

46 

32

39 

32 

80

--

Tons 

per 

day

3

e4 

e5 

5 

6

6 

10 

25 

24 

22

el9 

el5

22

27 

e20 

11 

5 

6

7 

18 

22

7 

4

6

7 

17

353

May

82 

77 

75 

72 

76 

101 

103 

104 

154 

167 

136 

111 

133 

124 

102

91 

88 

85 

110 

126 

141 

124 

102 

99 

81

77 

77 

75 

78 

86 

74

3, 131

82 

160

190

780 

810

680 

480 

730 

530

330 

250

1,200 

970

700 

720 

600 

1,200 

310

170 

180 

190 

420 

380 

220

e22 

17 

32 

e36 

e38 

e85 

53 

e!70 

320 

370

250 

140 

260 

180 

e!20

81 

59 

e85 

360 

330 

270 

240 

170 

320 

68

35 

37 

38 

88 

88 

44

4,410

March

Mean

charge 

(secondfeet)

91 

75 

69 

108 

270

218 

150 

90 

65 

60

60 

63 

63 

63 

75

100 

174 

192 

158 

136 

126 

116 

192 

350 

290

274 

280 

196 

143 

130 

127

4,504

Suspended sediment

Merai 

concentration 

(Ppn)

100 

100 

1,600

1,200

130

67

} :

1,300

1,300 

1,600 

840 

590

470

--

Tons 

per 

day

e!7 

e!4 

19 

s!20 

1,200

710 

e200 

e24

e8 

22

a

elO 

e!4 

e32 

e!6Q 

e75

e34

e320 

el, 400 

1,000

960 

1,200 

440 

230 

e200 

. ... 160

8,670

June

66 

1,310 

929 

677 

481 

288 

165 

119 

95 

80 

72 

66 

60 

64 

86

73 

64 

82 

149 

137

91 

76 

71 

66 

60

55 

52 

52 

50 

48

6,184

170 

6,500 

1,200 

220 

440

770 

580

210 

480

210 

120 

90 

60 

190

120 

70

420 

330

370 

270 

200 

130 

120

100 

75 

64 

110 

52

--

30 

s 39, 000 

3,000 

400 

570

600 

260 

ellO 

54 

100

41 

21 

15 

10

44

24 

12 

e!30 

170 

120

91 

55 

38 

23 

19

15 

11 

9 

15

7

44, 990

e Estimated.

s Computed by subdividing day.
PLATTE RIVER BASIN

PLATTE RIVER BASIN Continued

BEAVER CREEK AT LORETTO, NEBR.--Continued

Suspended sediment, water year October 1949 to September 1950--Continued

357

Day

2

12

20

23

24

27

on

TotalJuly 1

Mean 

discharge 

(secondfeet)

47 

46 

47 

47 

53

50 

46 

14G 

1,620 

353 

119 

616 

165 

103 

94

584 

1,200 

607 

805 

507 

404 

197 

426 

348 

424

328 

190 

134 

105 

91 

82

9,964

Suspended sediment

Mean 

concentration 

(ppm)

91 

93 

74 

90 

130

200 

130

4,800 

1,500 

520 

2,100 

350 

300

3,300

1,400 

1,300 

1,000

1,400 

420

430 

910

650 

360 

220 

150 

130 

97

-

Tons 

per

day

12 

12 

9 

11 

19

27 

16 

e 1, 300 

s 22, 000 

si, 600

170 

s3,900 

160 

83 

e75

si 1,000 

el 8, 000 

S2.800 

s 3, 300 

1,400

si, 600 

s240 

e2,200 

400 

1,000

s620 

180 

80 

43 

32 

21

72,310

August

Mean 

discharge 

(second - 

feet)

74 

69 

66 

68 

85

80 

68 

64 

61 

62

65 

200 

153 

191 

177

113 

96 

84 

76 

71

68 

64 

60 

56 

54

54 

58 

58 

55 

53 

52

2,555

Suspended sediment

Mean 

concentration 

(ppm)

85 

80 

75 

340 

420

490 

220

140 

190

120 

470

520 

260 

180

120 

110 

210 

140 

110

120 

110 

120 

76 

200 

84

Tons 

per 

day

17 

15 

13 

62 

sllO

110 

40 

e26 

23 

32 

e38 

e900 

50 

240 

e440

160 

67 

41 

e32 

e26 

22 

19 

34 

21 

16

17 

17 

19 

11 

29 

12

2,660

September

Mean

charge 

(second - 

feet)

50 

48 

48 

46 

447

46 

46 

45 

45 

45 

45 

47 

51 

91 

119

138 

114 

72 

65 

82

69 

60 

58 

54 

52

52 

54 

54 

52 

50

1,845

Suspended sediment

Mean 

concentration 

(ppm)

60 

72 

68 

76 

82

69 

80 

120 

84 

79

58 

98

too

230 

170

120 

90

81 

110

65 

36 

60 

68 

78

Tons 

per 

day

8 

9 

9 

9 

10

9 

10 

15 

10 

10 

e9 

7 

13 

25 

e65

86 

e60 

33 

624

27

17 

ell 

ell 

12 

15

9 

5 

9 

10 

11

558

Total discharge for year (second-foot-days) ..................................................... 37,962

Total load for year (tons) ...................................................................... 136,400

e Estimated.

s Computed by subdividing day.
PLATTE RIVER BASIN Continued 

BEAVER CREEK AT LORETTO, NEBR.--Continued

Particle-size analyses of suspended sediment, water year October 1949 t

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection

Oct. 11, 1949 ...........

Mar. 5, 1950 ...........

Mar. 6 .................

Mar. 25 ................

Mar. 25................

Mar. 27 ................

Mar. 27 ................

Apr. 4 .................

Apr. 19 ................

May 9 ..................

May 19 .................

June 11.................

June 19 .................

July 9 ..................

July 9 ..................

July 9 ..................

July 18 .................

Sept. 12 ................

Sept. 29 ................

Time

4:15 p. m. 

12:10 p.m. 

5:00 p. m. 

10:00 a. m. 

6:10 p.m.

2:10 p.m. 

2:10 p.m. 

1:00 p. m. 

3:20 p. m. 

2:20 p. m.

12:00 m. 

3:00 p. m. 

7:10 a.m. 

8:55 a.m. 

11:00 a. m.

2:50 p. m. 

2:50 p.m. 

4:00 p.m. 

12:30 p. m. 

6:20 p.m.

9:15 a.m. 

1:45 p.m. 

6:00 p. m. 

7:30 p. m, 

7:30 p. m.

11:15 a.m. 

4:20 p. m.

Discharge 

(secondfeet)

70 

358 

191 

304 

266

274 

274 

106 

70 

60

160 

122

872 

1,880 

4,570

3,000 

3,000 

2,520 

71 

181

2,880 

2,080 

1,270 

918 

918

47 

52

Suspended sedim

Concentration 

of sample 

(ppm)

230 

1,790 

866 

1,450 

1,170

1,580 

1,580 

269 

156 

129

1,170 

955 

7,470 

12,800 

10,800

6,750 

6,750 

5,880 

158 

549

5,640 

3,550 

2,900 

2,870 

2,870

54 

61

Concentration 

of suspension 

analyzed 

(ppm)

458 

1,520 

1,140 

2,160 

1,750

2,210 

1,590 

1,270 

860 

700

4,770 

3,460 

3,860 

6,030 

5,640

4,080 

4,130 

4,800 

903 

2,690

4,170 

4,260 

3,700 

3,460 

3,530

220 

298

Percent finer th

0.002

14

68 

44

66 

35

0.004

21 

38

28

16 

10 

25 

31 

33

20 

28 

71 

39 

65

82 

66 

84 

42 

28

81 

88 

91 

78 

56

61 

29

0.008

35

19 

12

92

86

87 

77

67 

42

0.016

41 

25 

46 

36 

35

23 

19 

31 

40 

42

30 

40 

85 

50 

88

97 

96 

97 

55 

43

92 

96 

96 

94 

90

71 

47

0.0
PLATTE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN PLATTE RIVER B

Chemical analyses, in larts per million, water year October 1949 to Sep

Date of collection

Discharge 

(secondfeet)

pH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium

Carbonate

Bicarbonate

Sulfate 

(SO,)

Chloride 

(Cl)

McCONAUGHY LAKE, NEBR.

June 13 1 at surface . . .

June 13, depth 15ft. ..

June 13, depth 30-50 ft.

8.0

7.7

7.9

7.9

7.9

707

727

689

690

693

25

30

20

21

26

0.02

.02

.04

.04

.04

50

57

41

44

43

16

15

17

16

17

79 1 9. 8

87

87

88

87

0

0

0

0

0

231

244

212

216

217

147

158

148

150

150

24

18

22

22

22

NORTH PLATTE RIVER AT NORTH PLATTE, NEBR.

8.5

8.1

8.0

8.1

660

41

28

30

28

0.02

.02 55

8.7

14

35 | 6. 8

77

84

80

10

0

0

8

166

224

222

209

75

143

151

180

19

20

22

PLATTE RIVER AT BRADY, NEBR.

Sent. 27 ............ a 126 8.2 302

39

45 .02 41

9.8

3.8

37 7.4

20 5

169

148

86

26

14

3.0

PLATTE RIVER NEAR ASHLAND, NEBR.

Aue. 31 .............

2,500

15,680

5.290

8.3

8.1

8.5

8.4

543

398

49

22

41

34

0.01

.08

.02

56

56

12

4.9

7.2

49

20

24

5

0

8

223

150

180

196

84

29

34

10

4.8

7.5

5.5

SOUTH PLATTE FIVER AT FORT LUPTON, COLO.

Mav 1 ...............

75

181

8.0

7.7

7 3

1,250

961

19

20

13

0.02

.02

.02 82 21

121

106

0

0

0

310

280

238

340

255

216

72

65

a Mean daily discharge.
PLATTE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN PLATTE RIVER BASIN 

Chemical analyses, in parts per million, water year October 1949 to September 

Date of collection

Discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

dium 

(Na)

Potassium 

(K)

Carbonate

Bicarbonate

(COS)<HCO,)

Sulfate 

(SO,)

Chloride 

(Cl)

SOOTH PLATTE RIVER AT FORT LUPTON, COLO. Continue

365

126 8.2 928

9.8

14 73 17

20

103

0

n

5

0

206

136

211 

SOOTH PLATTE RIVER AT NORTH PLATTE, NEBR.

Feb. 17 .............

Sept. 27 .............

201

174

270

163

179

8.0

7.8

7.9

8.2

788

709

1.120

791

779

34

36

34

43

.04

.02

.02

75

73

87

17

15

24

19

14

69

63

64

65

0

0

0

0

6

235

232

207

207

226 181

91

23

22

ST. VRAIN CREEK AT MOOTH NEAR PLATTEVILLE, COLO.

Sect. 5 .............. 73 8 3

1,730

2.080

14

14

8.7 .02 134

98

86

118

166

213

10

11

319

298

278 955

26

24 

BIG THOMPSON RIVER AT MOOTH NEAR LA SALLE, COLO.

Sent. 5 .............

17

14

8.0

7.8

2,560

2.520

13

13

.04

.02

206

210 135

227

242

0

0

0

344

298

1,260

1.260

29

29

CACHE LA POUDRE RIVER NEAR GREELEY, COLO.

Sent. 5 .............

46

12

7.2

8.1

7.9

1,810

1,940

1.880

14

14

14

.02

.04

.02

190

181

96

95

86

142

145

163

0

0

0

322

350

288

785

805

835

29

31

31

a Mean daily discharge.
BIJOU CREEK NEAR MOUTH NEAR FORT MORGAN, COLO.

Sent. 15 .............

8.0

7.6

8.1

1,320

1,300

1.310

19

22

22

0.02

.02

.04

177

171

160

30

34

QE

83 1 8. 9

90

0

0

0

238

214

214

187

495

495

435

505

31

36

34

JOHNSON RESERVOIR, NEBR.

Sept. 28 .............

7.8

8.3

923

717

690

24

25

.02

.02

73

79

53

22

26

16

97

95

73

78

0

8

238

198

203

191

240

293

159

25

29

22

20
362 MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN PLATTE RIVER BASIN Continued

periodic determinations of suspended-sediment discharge, water year October 1949 to September 1950

Date

Instantaneous 

water discharge 

(second-feet)

Suspended sedimeit

Mean 

concentration 

(ppm)

Instantaneous 

discharge 

(tons per day)

PLATTE RIVER NEAR OVERTON, NEBR.

Feb. 1 ...................

Feb. 3 ...................

July 6 ...................

Sept. 28..-. ...............

1 99ft

446

999

977

32

57

41

156

450

425

31

108

PLUM CREEK NEAR SMITHFIELD, NEBR.

May 22 ...................

Aug. 10 ..................

99*7

9Qn

303

qon

OQQ

5 3

24 4,200

87

1 9 Aftft

272

MIDDLE LOUP RIVER NEAR SENECA, NEBR.

Oct. 13, 1949.............

Jan. 10, 1950.............

Feb. 22 ..................

Apr. 4 ...................

July 12 ...................

204

191

204

194

194

194

554

384

363

277

244

nor?

169

190
PUTTE RIVER BASIN 363

PLATTE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN PLATTE RIVER BASIN Continued 

Periodic determinations of suspended-sediment discharge, water year October 1949 to September 1950 Continued

Date

Instantaneous 

water discharge 

(second-feet)

Suspended sediment

Mean 

concentration 

(ppm)

Instantaneous 

discharge 

(tons per da-rt

MIDDLE LOUP RIVER NEAR SENECA NEBR.- Continued

Sept. 7 ..................

Sept. 20 .................

188

283

605

1,920

893

796

307

1,470

MIDDLE LOUP RIVER NEAR MILBURN, NEBR.

Nov. 29 ..................

Dec. 14 ..................

May 30 ..................

July 17 ..................

Sept. 7 ...................

Sept. 26 ..................

799

584

885

848

680

814

803

1,000

Qfii

727

596

1,850

2 400

2 160

274

1,010

480

4,700

6 060

2 650

2 630

1,980

1,660

805

813

2 110

1,310

1,500

787

4.010

MIDDLE LOOP RIVER AT ARCADIA, NEBR.

Oct. 11, 1949.............

Nov. 22 ..................

Nov. 29 ..................

Jan. 18, 1950.............

Feb. 14 ..................

Feb. 23 ..................

Mar. 16 ..................

Mar. 29 ..................

Apr. 19 ..................

May 9 ...................

June 1 ...................

June 21 ..................

838

852

580

1,300

975

QQQ

738

tiArj

624

pi a

442

6 970

5 720

2 690

5 260

4.280

299

4.390

6 620

5 480

1.280

745
364 MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN PLATTE RIVER BASIN Continued 

Periodic determinations of suspended-sediment discharge, water year October 1949 to Septe-nber 1950 Continued

Date

Instantaneous 

water discharge 

(second -feet)

Suspended sediment

Mean 

concentration 

(ppra)

Instantaneous 

discharge 

(tons per day)

MIDDLE LOUP RIVER AT ARCADIA, NEBR. Continued

Sept. 27..................

521

722

873

1,160

699

706

812

779

714

947

795

400

510

421

433

712

556

576

496

424

498

529

950

440

1,060

740

563

994

830

1,020

2,230

1,670

1,090

945

930

1,050

1,090

1,640

848

2,710

1,590

MIDDLE LOUP RIVER AT LOUP CITY, NEBR.

Oct 10 1949

Dec. 29 ..................

Feb. 23 ..................

Mar. 9 ..................

Mar. 22 ..................

Apr. 19 ..................

Apr. 26 ..................

May 23 ...................

July 9 ...................

Aug. 10 ..................

Aug. 16 ..................

Aug. 30 ..................

Sept. 7 ...................

Sept. 14 ..................

Sept. 20..................

Sept. 27 ..................

814

870

773

1,070

584

1,010

284

1,530

984

1,020

972

680

1,240

956

776

600

788

740

1,530

936

1,260

1,290

1,060

1,380

1,240

1,850

1,740

370

150

378

117

445

600

3,690

2,200

2,050

1,280

1,140

1,040

632

944

972

660

518

394

327

282

308

253

635

1,420

387

1,170

1,010

255

515

431

337

403

270

470

445

625

4.710

1,990

2,770

3,030

2,610

3,290

981

3,660

3,630

1,070

237

810

227

1,210

460

11,400

9,090

5,450

3,060

3,140

2,730

1,370

2,150

3,100

1,530

1,140

813

530

375

499

342

1,170

4,750

880

4,110

2,860

518

1,330

819

662

844

437

838

947

1,250

DISMAL RIVER NEAR GEM, NEBR.

Nov. 1, 1949. .............

Nov. 15 ..................

276

310

600

773

447

647
PLA|TTE RIVER BASIN 365

PLATTE RI|VER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN PLATTE RIVER BASIN Continued 

Periodic determinations of suspended-sediment discharge, water year October 1949 to September 1950 Continued

Date

Instantaneous 

water discharge 

(second-fe«t)

Suspended sediment

Mean 

concentration 

(ppm)

Instantaneousdischarge 

(tons per day*

DISMAL RIVER NEAR GEM, NEBR.--Continued

Nov. 29, 1949 ............

Dec. 14 ..................

Dec. 28 ..................

Feb. 23 ..................

Feb. 28 ..................

Apr. 18 ..................

May 3 ...................

June 27 ..................

July 13 ..................

Aug. 23 ..................

Sept. 6 ..................

Sept. 19 ..................

276

271

282

279

262

273

294

860

939

849

295

370

485

552

1,080

629

342

715

792

674

621

337

351

328

430

359

263

217

276

385

DISMAL RIVER AT DUNNING, NEBR.

Oct. 11, 1949.............

Dec. 14 ..................

Dec. 21 ..................

Jan. 25 ..................

Feb. 14 ..................

Feb. 22 ..................

Apr. 4 ...................

Aug. 8 ....................

Aug. 23 ..................

Sept. 6 ..................

Sept. 19 ..................

306

9Q7

q«)7

41 0

QQq

312

796

9Af\

41 9

902

7Q5

434

480

888

658

1,280

1,550

340

15

1,400

1,110

818

491

422

300

404

SOUTH LOUP RIVER NEAR CUMRO, NEBR.

Oct. 10, 1949.............

Nov. 28 ..................

Dec. 15 ..................

Dec. 27 ..................

Feb. 21 ..................

1 5*.

216

344

362

347

136

202
366 MISSOURI RIVER BASIN

PLATTE RIVER BASIN -Continued

MISCELLANEOUS ANALYSES OF STREAMS IN PLATTE RIVER BASIN Conti nued 

Periodic determinations of suspended-sediment discharge, water year October 1949 to Septemter 1950 Continued

Date

Instantaneous 

water discharge 

(second-feet)

Suspended sediment

Mean 

concentration 

(ppm)

Instantaneous 

discharge 

(tons per day)

SOUTH LOUP RIVER NEAR CUMRO, NEBR. Continued

Mar 14

M&v 17

Sept. 18..................

206

194

196

177

100

212

158

126

129

536

146

155

144

124

126

141

676

312

855

690

514

378

1,100

431

460

266

2,270

538

8,320

1,030

1,280

530

540

440

287

370

376

151

448

365

246

163

630

192

196

90

1,450

187

12,000

406

536

229

210

147

98

141

MUD CREEK NEAR SWEETWATER, NEBR.

July 24 ..................

189

191

157

673

1,030

1,290

6,440

7,200

7,360

9,020

5,920

5,400

3,290

3,710

3,120

16,400

16,500

18,800

NORTH LOUP RIVER AT BREWSTER. NEBR.

Apr. 17 ..................

Sept. 19 ..................

352

360

349

334

322

455

392

473

446

400

392

300

376

438

399

333

602

192

126

320

1,400

995

466

746

453

255

601

209

188

250

200

250

175

275

459

379

324

567

173

129

570

1,140

1,220

493

953

545

275

774

186

175

262

212

202

149

279

NORTH LOUP RIVER AT BURWELL, NEBR.

a Mean daily discharge.

447

506

1,240

614

423

747

629

140

276

308

1,190

1,030

2,540

820

571

1,500

1,260

902

859

51

281

449

2,100

1,760
PllATTE RIVER BASIN 367

PLATTE ^IIVER BASIN Continued 

MISCELLANEOUS ANALYSES O|F STREAMS IN PLATTE RIVER BASIN Continued 

Periodic determinations of suspended-sediment discharge, water year October 1949 to September 1950 Continued

Date

Instantaneous 

water discharge 

(second-(eet)

Suspended sediment

Mean 

concentration 

(ppm)

Instantanecus 

discharge 

(tons per d'w)

NORTH LOUP RllvER AT BURWELL, NEBR. Continued

May 24

Sept. 27 ..................

831

609

635

440

550

417

421

387

440

467

509

840

493

362

237

438

535

341

228

233

260

326

450

1,880

811

621

282

650

602

388

238

277

328

335

618

NORTH RIVER AT ORD, NEBR.

Apr. 24, 1950. ............

Sept. 26 ..................

937

1,700

983

836

722

709

960

858

654

900

532

1,280

460

266

1,890

764

2,390

321

274

260

233

1,350

5,880

1,220

600

3,680

1,900

4,580

832

635

459

566

NORTH LOUP JIIVER NEAR COTESFIELD, NEBR.

May 17 ...................

566 

530 

1,120

376 

179 

374

575 

256 

1,130

CALAMUS RIVER NEAR BURWELL, NEBR.

Oct. 26 ..................

Jan. 4, 1950..............

June 12 ..................

308 

279 

282 

273 

279

298' 

302 

276 

273 

270

279 

233 

286 

306 

182

263

307 

249 

329 

270

292 

360 312 ' 

380 

454

358 

340 

312 

376 

322

343 

332 

504 

282

415 

200 

280 

239 

257

282 

354 

286 

229 

266

392 

298 

392 

98 

184

104 

60 

65 

82 

3TO

380 

222 

366 

735 

415

250 

315 

390 

240 

303

208 

537 

627 

124

346 

151 

214 

177 

194

227 

289 

214 

169 

194

296 

188 

303 

81 

91

74 

50 

44 

73 

270

300 

216 

309 

756 

509

242 

290 

329 

244 

264

193 

482 

854 

95
368 MISSOURI RIVER BASIN

PLATTE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN PLATTE RIVER BASIN Continued 

Periodic determinations of suspended-sediment discharge, water year October 1949 to September 1950--Contiaued

Date

Instantaneous 

water discharge 

(second-feet)

Suspended sediment

Mean 

concentration 

(ppm)

Instantaneous 

discharge 

(tons per day)

CALAMUS RIVER NEAR BURWELL, NEBR.--Continued

July 17 ..................

Aug. 30 ..................

Sept. 27 ..................

289

289

332

210

150

236

160

208

142

190

210

255

173

97

199

125

157

144

237

in

150

177

229

LOUP RIVER POWER CANAL NEAR GENOA, NEBR.

June 21 ..................

Sept. 22 ..................

2,040

2,520

304

1,230

770

1,270

1,260

6,770

4,570

8,640

ELKHORN RIVER AT EWING, NEBR.

Dec. 20 ..................

Jan. 17, 1950.............

Feb. 1 ...................

Feb. 22 ..................

Mar. 29..................

Apr. 12 ..................

Apr. 26 ..................

May 10 ...................

May 12 ...................

July 7 ...................

Sept. 13 ..................

Sept. 28 ..................

56

222

495

152

394

10

5

13

185

1.7

.6

1 540

24

197

ELKHORN RIVER AT NELIGH, NEBR.

Apr. 19 ..................

May 12 ..................

May 26 ..................

May 26 .................. 680

790

290

1,310

985

532
PL4TTE RIVER BASIN 369

PLATTE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN PLATTE RIVER BASIN Continued 

Periodic determinations of suspended-sediment Discharge, water year October 1949 to September 1950 Continued

Date

Instantaneous 

water discharge 

(second-feet)

Suspended sediment

Mean 

concentration 

(ppm)

Instantaneous 

discharge 

(tons per day)

ELKHORN RIVER AT NELIGH, NEBR. Continued

Sept. 29 ..................

416

442

266

359

1,070

1,300

207

66C

216

259

192

937

772

268

621

622

276

102

445

243

309

138

3,970

3,380

2^0

1,790

2,100

279

57

7T)
PLATTE RIVER BASIN Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN PLA1TE RIVER BASIN 

Particle-size analyses of suspended sediment, water year October 1949 t

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection Time

Discharge 

(secondfeet)

Suspended sedim

Concentration 

of sample 

(ppm)

Concentration 

of suspension 

analyzed 

(ppm)

Percent finer th

0.002 0.004 0.008 0.016 0.03

PLATTE RIVER NEAR OVERTON, NEBR.

Sept. 27 .................

6:30 p.m. 

6:25 p.m. 

10:30 a. m. 

6:00 p. m. 

5:20 p.m. 

6:15 p.m.

1,800 

2,160 

1,720 

1,110 

958 

1,850

32 

222 

313 

356 

388 

114

588 

3,850 

5,900 

1,450

3,070

11 

2

51

20

14 

3 

2 

60

23

18 

5 

3 

68

26

22

6 

5 

72

30

PLUM CREEK NEAR SMITHFIELD, NEBR.

Aue. 10 ................. 10:00 a.m.

218

218

225

227

287

399

399

104

133

24

8,660

8,660

10,000

12,200

10,000

10,000

2,880

. 13,200

4.200

4,330

4,730

13,300

11, 100

9,060

5,010

5,370

5,400

9,020

6,470

5,920

9.100

61

10

47

24

65

11

58

41

42

56

35

84

36

86

70

12

64

49

67

52

77

35

73

95

57

57

61

73

61

97

76

80

71

94

MIDDLE LOUP RIVER NEAR SENECA, NEBR.

Nov. 29 ................. 9:30 a. m.

184

186

552

492

554

1,610

1,170

1.390
Sept. 20 ................. 9:45 a. m.

188

186

204

194

194

194

283

429

704

706

384

509

1,520

1,920 "

MIDDLE LOUP RIVER NEAR MILBURN, NEBR.

Sept. 26 ................. 10:20 a. m.

799

584

826

711

670

817

804

804

908

885

848

680

726

803

1,000

250

279

1,220

1,220

727

1,850

2,550

2,090

2,000

"
PLATIE RIVER BASIN Continued 

MISCELLANEOUS ANALYSES OF STREAMS IM P1ATTE RIVER BAS

Particle-size analyses of suspended-sediment, water year October 1949 to Sep

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection Time

Discharge 

(secondfeet)

Suspended sedim

Concentration 

of sample 

(ppm)

Concentration 

of suspension 

analyzed 

(ppm)

Percent finer t

0.002 0.004 0.008 0.016 0.0

MIDDLE LOUP RIVER AT ARCADIA, NEBR.

Oct 11 1949

Aug. 29 ................. 6:00 p.m.

985

804

580

763

2,620

1,160

 2,450

191

282

529

9,070

3,030

5,620

_

3,520

--

MIDDLE LOUP RIVER AT LOUP CITY, NEBR.

Oct. 10, 1949............

Dec. 21 .................

Dec. 29 .................

Jan. 27. .................

Feb. 6 ..................

Feb. 23 .................

Mar. 16 ................. 4:15 p.m.

584

794

1,010

1.140

1,850

1,740

150

378

445

3,690

3,690

3,190

2,300

3,100

3,290

3,030

5,930

4,390

1,080

_

_

4,440

3,840

9

5

6

_

__

_

_

_

_.
Aue. 16 ................. 12:30 D. m.

1,530

984

884

842

600

704

2,200

2,050

1,280

944

972

431

_

._

>

_

_

__

_

43

DISMAL RIVER NEAR GEM, NEBR.

Aug. 8 .................. 12:45 p. m.

250

276

271

274

279

262

279

262

272

278

401

733

600

741

860

1,540

1,070

895

724

448

413

266

351

746

1,870

1,910

_

1,830

_

_

--

8

5

_

__

_

_

_

_

"

DISMAL RIVER AT DUNNING, NEBR.

Nov. 15 ................. 5:30 D. m.

342

306

962

1,320

1.160

2,230

2,970

_

..

_

..

_

..
PLATTE RIVER BASIN Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN PLATTE RIVER BA

Particle-size analyses of suspended sediment, water year October 1949 to Se

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection Time

Discharge 

(secondfeet)

Suspended sedi

Concentration 

of sample 

(ppm)

Concentration 

of suspension 

analyzed 

(ppm)

Percent finer 

0.002 0.004 0.008 0.016 0

DISMAL RIVER AT DUNNING, NEBR. Continued

Aug. 8 ..................

11:45 a.m.

3:45 p.m.

306

315

405

310

330

324

324

327

300

289

796

60

340

417

1,670

1,400

1,270

1,270

502

541

1,900

1,250

2,010

1,840

--

_

_

__

3

_

"

_.

4

"

_

_

6

"

SOUTH LOUP RIVER NEAR CUMRO, NEBR.

Mar. 14................. 4:40 D. m.

1 99

113

154

1 90

216

206

179

560

344

347

312

1,400

897

954

17

12

16

21

16 _

24

24

27

22
Aug. 7 .................. 6:30 p. m.

194

196

144

8b5

690

540

2,630

1,0'JO

2,480

11

13

--

10

2

23

13

33

MUD CREEK NEAR SWEETWA1ER, NEBR.

July 24 .................. 8:10 a.m.

191

1,030

1,290

5,920

5,400

14,600

7,700

5,310 "

57

70

73 " 88 

NOR1H LOUP RIVER Al BREWS1ER, NEBR.

Feb. 7, 1950 ............

Nov. 1 ..................

12:45 p.m.

4:00 p.m.

383

352

378

a 660

473

400

368

333

126

746

255

384

967

998

_

"

a Mean, daily discharge.
PLAT1E RIVER BASIN Continued 

MISCELLANEOUS ANALYSES OF S1REAMS IN PLAT1E RIVER BASIN 

Particle-size analyses of suspended sediment, water year October 1949 to Septe

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection Time

Discharge 

(secondfeet)

Suspended sedime

Concentration 

of sample 

(ppm)

Concentration 

of suspension 

analyzed 

(ppm)

Percent finer th

0. 002 0. 004 0. 008 0.016 0.03

NORTH LOUP RIVER Ari BURWELL, NEBR.

A

Aug. 21 ................. 7:00 p.m.

302

270

286

509

289

354

266

392

298

222

01 U

627

142

1,110

853

683

640

1,550

621

865

_

--

NOR'IH LOUP RIVER A1 ORD, NEBR.

Sept. 26 .................

4:00 p. m. 

5:00 p. m. 

6:00 p.m. 

6:00 p.m.

937 

1,700 

858 

900

532 

1,280 

274 

233

2,700 y 11

NOR'IH LOUP RIVER NEAR COTESFIELD, NEBR.

Mav 17 ..................

12:30 p.m. 

3:15 p.m. 

4:20 o. m.

530 

1,110 

1.120

179 

374
CALAMUS RIVER NEAR BURWELL, NEBR.

Oct 19 1949

Sect. 27 ................. 10:30 a. m.

760

500

523

506

447

632

635

509

1,240

423

1,060

924

747

276

308

1,030

362

450

3,250

879

2,660

2,520

5,200

_

4 5 

LOUP RIVER POWER CANAL NEAR GENOA, NEBR.

Sept. 22 .................

12:00 m.

2:15 p.m.

2,030

2,430

2,040

2,200

2,520

230

304

1,180

1,180

1,230

770

1,270

621

1,680

1,340

3,630

2,050

4,070

30

_

48

_

--

39

31

45

55

70

35

67

45

_

_

--

54

46

84

52

84

ELKHORN RIVER AT EWING, NEBR.

May 12 .................. 2:40 o. m.

1,270

543

876

8

450

175

1,350

_ _ _

_.

__ 
PLAT1E RIVER BASIN Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN PLA1TE RIVER BAS

Particle-size analyses of suspended sediment, water year October 1949 to Sep

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection Time

Discharge 

(secondfeet)

Suspended sedi

Concentration 

of sample 

(ppm)

Concentration 

of suspension 

analyzed 

(ppm)

Percent finer 

0.002 0.004 0.008 0.016 0

ELKHORN RIVER AT EWING, NEBR. Continued

Sept. 28 .................

4:30 p.m. 

12:50 p.m. 

4:00 p.m. 

4:40 p. m.

402 

152 

140 

394

65 

56 

55 

185

382 

308 

359 

1,130

41

33 

45 

46 

16

38 

49 

51 

17

44 

54 

55 

20

ELKHORN RIVER AT NELIGH, NEBR.

Sept. 29 ................. 1:10 p.m.

2,250

880

1,070

660

1,200

553

723

621

445

1,500

1,140

1,110

518

6 7

13

14

9

14

17

10
KANSAS RIVER BASIN 379

KANSAS RIVER BASIN 

ARIKAREE RIVER AT HAIGLER, NEBR.

'LOCATION. At bridge on U. S. Highway 34, a quarter of a mile upstream from gaging station, 

three-quarters of a mile upstream from confluence with North Fork Republican River, 

and 1 mile northwest of Haigler, Dundy County. 

DRAINAGE AREA. 1,460 square miles, of which only 1,330 square miles contribute directly

to surface runoff. 

RECORDS AVAILABLE. Water temperatures: April to September 1950.

Sediment records: March 1947 to September 1950.

EXTREMES, 1949-50. Water temperatures (April to September): Maximum, 93°F Aug. 15. 

Sediment concentrations: Maximum daily, 8,630 ppm Sept. 15; minimum daily, no flow

June 27, 28, July 1-3. 

Sediment loads: Maximum daily, 30,000 tons Aug. 26: minimum daily, 0 tons June 27,

28, July 1-3. 

EXTREMES, 1947-50. Sediment concentrations: Maximum daily, not determined; minimum daily,

not determined. 

Sediment loads: Maximum daily, 90,000 tons June 16, 1948; minimum daily, 0 tons on

some days in 1947, 1949, and 1950.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in 

Water-Supply Paper 1176.

Temperature (°F) of water, April to September 1950 

/Once-daily temperature measurement usually between 3 p.m. and 7 p.iu7

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

Average

Oct. Nov.

51

._

..

~

..

..

..

48

--

Dec. Jan.

32

Feb.

32

..

~

..

35

~

Mar.

33

Apr.

..

55

60

70

70

50

60

55

61

61

60

62

48

55

71

58

55

70

69

76

80

50

65

70

60

60

45

65

62

May

65

June

80

75 | 72

70

55

65

70

55

63

75

68

70

70

77

72

70

80

75

65

73

72

75

83

85

68

50

55

70

64

67

78

70

69

68

80

86

72

78

82

75

79

80

82

87

80

80

67

80

80

85

89

87

87

89

70

83

77

75

80

~

80

July

87

85

83

85

~

86

85

87

90

90

85

78

85

80

91

85

82

78

86

77

85

80

80

72

80

74

80

75

92

70

70

82

Aug.

86

80

80

90

85

80

89

83

79

81

85

70

70

80

93

82

85

70

65

80

85

64

80

85

70

62

74

75

73

78

83

79

Sept.

82

85

84

83

77

74

80

82

70

62

69

63

60

65

59

75

75

77

72

65

72

77

65

70

70

65

58

78

72
380 MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued 

ARIKAREE RIVER AT HAIGLER, NEBR. Continued

Monthly and annual summary of water and suspended -sediment discharge, water year October 1949 to September 1950

Month

April ................

September ...........

Water year 1949-50 . .

Discharge 

(secondfoot-days)

631.5 

444 

286.5 

451.4 

750 

657.1

527.0 

910.4 

247.6 

318.2 

2,144.3 

852.0

8,220.0

Runoff 

(acre -feet)

1,250 

881 

568 

895 

1,490 

1,300

1,050 

1,810 

491 

631 

4,250 

1,690

16,310

Suspended sediment

Load 

(tons)

3,450 

93 

45 

178 

1,260 

533

280 

2,800 

94 

270 

52, 800 

12,870

74,670

Daily load (tons)

Mean

111 

3.1 

1.4 

5.7 

45 

17

9.3 

90 

3.1 

8.7 

1,700 

429

205

Maximum

3,200 

10 

5 

48 

134 

71

28 

1,700 

18 

130 

30,000 

12,500

30,000

Minimum

(t) 

(t)

3 

1

1 

(t) 

0 

0 

1 

1

0

Concentration (ppm)

Weighted 

mean

2,020 

78 

58 

144 

622 

300

197 

1,140 

140 

268 

9,120 

5,600

--

Maximum 

daily

179 

154 

380 

1,770 

660

412

370 

1,630

8,630

-

t Sediment discharge less than 1.0 ton.
KANSAS RIVER BASIN Continued 

ARIKAREE RIVER AT HAIGLER, NEBR. Continued

Particle-size analyses of suspended sediment, November 1949 to Se

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically

Date of collection

Sept. 15 .............

Time

11:05 a.m. 

11:05 a.m. 

4:15 p.m. 

8:35 a.m. 

9:25 a.m.

9:40 a.m. 

11:00 a.m. 

11:00 a.m. 

6:40 p.m. 

12:00 m.

2:00 p.m. 

6:00 a.m. 

12:00 m. 

12:30 p.m. 

5:30 p.m.

8:30 a.m. 

9:10 p.m. 

9:10 p.m. 

9:20 p.m. 

7:05 a.m.

1:15 p.m. 

9:00 a.m. 

6:15 a.m. 

11:00 a.m. 

12:40 p.m.

12:40 p.m. 

1:10 p.m. 

2:50 p.m.

Discharge 

(secondfeet)

26 

12 

30 

29 

26

129 

129 

129 

25 

190

123

70 

54 

24 

38

46 

186 

186 

186 

1,740

272 

385 

993 

239 

211

211 

194 

142

Suspended sedim

Concentration 

of sample 

(ppm)

190 

84 

913 

328 

194

8,280 

5,720 

5,720 

1,810 

12, 300

8,860 

7,720 

6,910 

1,230 

3,040

1,630 

15,600 

15, 600 

14, 000 

9,600

4,280 

7,620 

20, 100 

7,400 

6,980

6,980 

6,320 

5,800

Concentration 

of suspension 

analyzed 

(ppm)

901 

1,130 

1,440 

1,400 

861

6,320 

3,300 

3,340 

3,840 

8,500

4,840 

5,540 

5,470 

1,710 

1,990

1,080 

7,590 

7,680 

4,690 

5,250

2,030 

2,960 

5,430 

5,670 

6,790

7,340 

&.520 

5,410

Percent finer 

0.002

22 

10 

15 

25 

35

31 

4

24 

80 

67

46 

28 

3

42 

3

0.004

30 

17 

22 

34 

44

46 

44 

6 

79 

68

76 

70 

33 

90 

72

52 

41 

6 

48 

40

68 

28 

34 

59 

55

6 

57 

53

0.008

42 

28 

34 

49 

53

56 

31

41 

96 

75

58 

60 

36

67 

40

0.016

52

48 

46 

64 

61

71 

68 

67 

94 

88

90 

87 

50 

97 

76

64 

81 

74 

81 

50

82 

36 

52 

84 

76

78 

80 

70

0.0
MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued 

REPUBLICAN RIVER AT TRENTON, NEBR.

LOCATION. At gaging station at bridge on State Highway 25, about half a rile upstream

from Elm Creek, and three-quarters of a mile south of Trenton, Hitchcock County. 

DRAINAGE AREA. 8,120 square miles, of which only 4,910 square miles contribute directly

to surface runoff.

RECORDS AVAILABLE. Chemical analyses: November 1946 to September 1949. 

Water temperatures: November 1946 to September 1950. 

Sediment records: November 1946 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum, 92°F June 12, 23; minimum, freezing point

on several days in December and January. 

Sediment concentrations: Maximum daily, 14,600 ppm Aug. 3; minimum daily, no flow June

25-29, July 1-3, 7, 22. 

Sediment loads: Maximum daily, 178,000 tons Aug. 3; minimum daily, 0 tons June 25-29,

July 1-3, 7, 22.

EXTREMES, 1946-50. Water temperatures: Minimum, freezing point on many d^ys during winter 

months . 

Sediment concentrations: Maximum daily, not determined; minimum daily, no flow on many

days each year. 

Sediment loads: Maximum daily, 492,000 tons June 16, 1948; minimum daily, 0 tons on many

days each year.

REMARKS. Records of discharge for water year October 1949 to September 1910 given in 

Water-Supply Paper 1176.

Temperature (°F) of water, water year October 1949 to September 1950 

/Once-daily temperature measurement at approximately 4 p. m., except during Mar. 1-18 and Ju

measurements at approximately 8 a. m/y

ly 24 to Sept. 18 most

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

Average

Oct.

..

"

..

65

62

64

63

60

65

67

66

70

51

56

50

38

49

-- ' 

._

--

--

Nov.

_

.55

58

62

62

59

58

5b

46

55

44

50

55

53

55

49

50

57

54

46

46

51

49

45

52

54

55

54

50

49

--

53

Dec.

50

51

38

38

49

40

37

32

37

41

33

35

33

35

35

36

36

35

34

33

34

34

35

35

--

34

35

--

37

Jan.

_

_

33

35

34

40

35

35

37

36

35

37

34

34

34

34

34

35

39

37

37

36

33

_

34

33

37

--

Feb.

36

37

34

38

38

35

36

39

37

35

34

35

36

37

36

36

41

44

36

_

_

--

_

_

38

_.

..

--

Mar.

33

32

33

43

42

33

34

33

33

33

33

38

34

36

38

50

55

55

60

63

..

45

49

52

58

63

--

Apr.

59

65

42

54

60

65

70

45

63

55

42

59

60

50

53

73

58

58

67

76

72

78

50

-

65

46

53

62

--

59

May

67

75

66

57

57

72

55

71

73

65

79

64

76

73

83

SO

60

75

70

80

86

88

74

50

55

65

70

70

75

73

70

June

78

74

71

89

81

80

85

87

68

70

92

90

89

90

78

78

77

85

88

87

90

92

--

_

--

--

Jul.'

..

77

_

--

79

81

84

77

-

_

79

--

_

70

63

60

63

70

74

7?

80

-

Aug.

67

_

65

69

73

74

66

72

65

66

69

71

78

69

72

73

68

86

67

--

60

64

62

70

68

67

77

76

65

67

83

70

Sept.

66

69

78

59

61

62

_

52

53

55

64

72

60

62

80

79

75

68

71

..

70

66

70

74

61

75

_

-
KANSAS RIVER BASIN

KANSAS RIVER BASIN Continued

REPUBLICAN RIVER AT TRENTON, NEBR. Continued

Suspended sediment, water year October 1949 to September 1950

383

Day

2

Q

13

1 R

19

22

23

24

25

27

90

31 

Total -

3

19

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

October

Mean

charge 

(secondfeet)

66 

80 

86 

89 

89

96 

96 

96 

99 

220

441 

234 

196 

162 

150

137 

128 

132 

132 

128 

132 

154 

158 

162 

154

158 

158 

154 

154 

154 

171

4,566

Suspended sediment

Mean 

concentration 

(ppm)

320

515 

380

510 

360 

285 

235

2,870 

1,540 

860 

818

890 

1,050 

880 

850 

845

1,020 

715 

900 

1,000 

1,550

1,400 

2,120 

1,520 

1,380 

1,710 

1,450

-

Tons 

per 

day

57 

e!60 

e!70 

124 

91 

132 

93 

74 

63 

e2,000

e 6, 900 

1,810 

815 

376 

331

329 

363 

314 

303 

292

363 

297 

384 

437 

644

597 

904 

632 

574 

711 

669

21,010

January

180 

160 

80 

60 

65

65 

60 

65 

75 

85

95 

100 

110 

110 

110

100 

110 

120 

170 

220

240 

230 

230 

220 

200

190 

180 

150 

140 

150 

150

4,220

393 

377 

122 

111 

125

131 

192 

183 

163 

180

175 

154 

151 

150 

176 

152 

172 

208 

181 

236 

255 

287 

388 

180 

158

161 

165 

171 

192 

229 

263

--

191 

163 

26 

18 

22

23 

31 

32 

33 

41

45 

42 

45 

44 

52 

41 

51 

67 

83 

140

165 

178 

241 

107 

85

82 

80 

69 

72 

93 

106

2,470

November

Mean

charge 

(secondfeet)

167 

162 

162 

158 

156

155 

155 

154 

160 

158

159 

161 

162 

159 

154

154 

153 

155 

145 

156

168 

154 

157 

160 

162

164 

166 

170 

186 

176

4,808

Suspended sediment

Mean 

concentration 

(ppm)

1,410 

1,310 

1,120 

940 

1,270 

1,820 

1,150 

810 

600 

810

1,220 

880 

1,100 

1,200 

1,180

1,280 

1,210 

1,650 

1,530 

1,700 

1,650 

1,510 

1,220 

1,180 

1,920

2,010 

1,980 

1,430 

1,770 

1,650

Tons 

per 

day

636 

573 

490 

401 

535

762 

481 

337 

259 

346

524 

382 

481 

515 

491 

532 

500 

690 

599 

716

748 

628 

517 

510 

840

890 

887 

656 

889 

784

17,600

Feoruary

160 

180 

200 

230 

270

270 

300 

320 

300 

310

320 

320 

280 

260 

280 

440 

830 

640 

350 

234

246 

246 

234 

246 

222

186 

181 

207

8,262

302 

418 

423

210

253 

294 

348 

402 

632

669

450 

576 

920

1,500 

2,250 

4,700 

7,400 

6,400

3,300 

1,510

130 

203 

228 

e200 

153 

184 

238 

301 

326 

529

578 

e480 

340 

404 

695

1,780 

5,040 

8,120 

6,990 

4,040

2,190 

e850 

e700 

e750 

e650 

e550 

e550 

844

38,040

December

Mean

charge 

(secondfeet)

171 

158 

191 

191 

158

158 

162 

217 

181 

191

160 

50 

30 

20 

20

40 

50 

65 

75 

100

120 

110 

 110 

110 

120

130 

140 

150 

150 

160 

170

3,858

Suspended sed ment

Mean 

concentration 

(ppm)

1,180 

1,700 

3,200 

5,600 

2,650

1,980 

2,000 

2,110 

2,030 

1,820

2,470 

620 

275 

250 

270 

430 

1,130 

1,840 

1,000 

370

350 

350 

281 

290 

343

382 

350 

363 

370 

371 

385

T'^ns 

per 

day

545 

725 

1,650 

2,890 

1,130

845 

875 

1,240 

992 

938

1,070 

84 

22 

13 

14

46 

152 

323 

202 

100

113 

104 

83 

86 

111

134 

132 

147 

150 

160 

177

15,250

March

181 

150 

171 

158 

167

196 

207 

120 

150 

140

110 

90 

106 

230 

560

398 

288 

186 

167 

207

196 

228 

252 

263 

240 

222 

228 

212 

171 

167 

162

6,323

b60 

1,520 

1,930

840

1,080 

1,380 

1,200

345

2,830

3,850 

2,340 

2,000 

2,450 

3,250 

3,590 

3,760 

4,220 

2,770 

940

1,850 

1,480 

1,760 

1,230 

670

--

274 

616 

891 

e650 

e450

444 

e500 

350 

559 

454

102 

e50 

e90 

el, 700 

4,280

4,140 

1,820 

1,000 

1,100 

1,820

1,900 

2,310 

2,870 

1,970 

609

eaOO 

1.14U 

847 

812 

5D4 

2b3

35,100
MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued

REPUBLICAN RIVER AT TRENTON, NEBR. Continued

Suspended sediment, water year October 1949 to September 1950 Continued

Day

2

19

9n

23

24

29

11

Total2

12

99

23 ...... 

24 ......

25 

26 ...... 

27 

28 ...... 

29 

30 

31 -

TotalApril

Mean

charge 

(secondfeet)

158 

176 

196 

217 

207

181 

167 

158 

162 

176

162 

154 

150 

150 

158

162 

176 

171 

162 

137

137 

145 

145 

128 

117

117 

121 

117 

110 

121

4,638

Suspended sediment

Mean 

concentration 

(ppm)

580 

490 

820 

2,040 

2,700

1,750 

1,220

800 

1,550 

475 

425 

450 

410 

375

325 

420 

1,090 

1,190 

780

1,090 

1,040 

825 

355 

305

335 

290 

230 

330 

607

Tons 

per 

day

247 

233 

434 

1,200 

1,510

855 

550 

e360 

350 

737

208 

177 

182 

166 

160

142 

200 

e503 

520 

288

403 

407 

323 

123 

96

106 

95 

73 

98 

198

10,940

July

0 

0 

0 

.2 

9.7

.2 

0 

60 

123 

45 

48 

37 

19 

8. 2 

1.7

.2 

1.4 

(t) 

2.2 

1.7

.1 

0 

17 

132 

252 

300 

210 

124 

99 

160 

985

2,636.6

400

450 

200 

85

112

119 

120

1,230 

400 

540

9,290

--

0 

0 

0 

e2 

e55

(t) 

0 

e90 

el, 200 

49 

e!80 

45 

10 

2 

(t)

(t) 

(t) 

(t) 

(t) 

(t)

(t) 

0 

elSO 

e2,000 

el, 400

e2,800 

s768 

134 

144 

e2,400 

s 26, 700

38,160

Total discharge for year (second-foot-day 

Total load for year (tons) ...............

May

Mean

charge 

(secondfeet)

110 

106 

110 

117 

186

269 

329 

422 

390 

263

257 

240 

217 

186 

158

158 

141 

137 

128 

128

114 

89 

83 

72 

75

110 

137 

154 

181 

150 

128

5,345

Suspended sediment

Mean 

concentration 

(ppm)

540 

260 

250 

250 

940

1,970 

1,640 

2,720 

3,210 

2,330

1,820 

2,100 

1,240 

800 

770

780 

810 

1,130 

760 

840

700 

418 

400 

365 

208

420 

950 

822 

440 

723 

902

--

Tons 

per 

day

160 

74 

74 

79 

472

1,430 

1,460 

3,100 

3,380 

1,650 

1,260 

1,360 

727 

402 

328

333

308 

418 

263 

290

215 

100 

90 

71 

42

125 

351 

342 

215 

293 

312

19,720

August

754 

590 

2,960 

754 

366

671 

302 

257 

1,890 

576

770 

610 

511 

998 

475

374 

309 

252 

196 

162

137 

132 

132 

128 

124

1,300 

731 

382 

438 

481 

309

18,071

6,300 

2,800 

14, 600 

5,740 

3,400

6,430 

4,110 

1,300

6,800 

3,280 

10,200 

6,250

3,600 

1,860 

1,300 

1,000

932 

880 

745 

595 

520

8,300 

8,570 

3,900

3,100

12,800 

4,460 

8178,000 

s 12, 200 

3,360 

s 26, 100 

s3,630 

902 

ellO.OOO 

e 17, 000 

e 21, 000 

11,200 

4,520 

s 34, 300 

8,020

3,640 

1,550 

884 

529 

e420

345 

314 

266 

206 

174

s 68, 100 

818,600 

4,020 

e 6, 500 

e6,500 

2,590

562,100

J me

Mean

charge 

(secondfeet)

121 

103 

78 

63 

56

52 

40 

26 

16 

10

6.9 

3.6 

41 

21 

6.2

.9 

5.8 

30 

15 

17

28 

15 

7.6

.7 

0

0 

0 

0 

0 

1.8

765.5

Suspended sediment

Mean 

concentration 

('Pm)

830 

454 

328

383

245 

276

108 

95

95 

110

605 

213

130 

126 

280 

150

120 

88 

56

--

Tons 

per 

day

271 

126 

69 

e60 

58

34 

30 

e!4 

5 

2

2 

1 

eSO 

34 

4

(t) 

2 

23 

6 

e5

9 

4 

1 

(t) 

0

0 

0 

0 

0 

(t)

841

September

196 

162 

132 

106 

92 

80 

72 

63 

61 

61

66 

72 

80 

106 

558

448 

246 

196 

176 

158 

124 

114 

114 

114 

117

110 

110 

96 

92 

86

4,208

1,600 

904 

530 

423 

570

390 

313

380

644 

900

4,850 

4,200 

1,950 

1,510 

1,600 

1,760 

1,150

1,500 

950 

820 

797 

745 

655

--

847 

395 

189 

121 

142

ellO 

76 

53 

e50 

e55

68 

e95 

139 

258 

e 16, 000

5,870 

2,790 

1,030 

718 

682

589 

354 

e3GO 

462 

300

244 

237 

193 

163 

e!40

32, 730

s) ...................................................... 67, 701. 1

........................................................ 794 , 000

e Estimated.

s Computed by subdividing day.

t Less than 1.0 ton.
KANSAS RIVER BASIN Continued 

REPUBLICAN RIVER AT TRENTON, NEBR. Continue

Particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Oct. 10, 1949 ............

Feb. 28 .................

Mar 14

Aue. 3 .................

Time

9:40 a. m. 

4:00 p.m. 

4 :00 p. m. 

4:00 p.m. 

4:00 p.m.

4:00 p. m. 

3 :30 p. rn. 

4:00 p.m. 

4 :00 p. m. 

4:00 p.m.

5:45 p.m. 

4:00 p.m. 

4:00 p.m. 

4 :00 p. m. 

2:15 p.m.

3 :00 p. m. 

4 :00 p. m. 

1 :50 p. m. 

1:50 p.m. 

4:15 p.m.

4:15 p.m. 

5:10 p.m. 

12:15 p.m. 

9:45 a.m. 

11:20 a.m.

11:45 a. m. 

12:25 p.m. 

12:25 p.m. 

12:45 p.m. 

7:40 a.m.

Discharge 

(second - 

feet)

207 

350 

222 

191 

162

137 

132 

158 

181 

176

176 

159 

207 

a 160 

a 160

a 260 

a 350 

222 

222 

316

316 

234 

343 

13 

1,610

1,610 

1,610 

1,610 

1,610 

9.100

Suspended sedim

Concentration 

of sample 

(ppm)

2,740 

4,530 

2,580 

1,380 

802

814 

860 

2,340 

1,300 

1,380

1,220 

1,280 

1,800 

3,190 

302

593 

7,640 

2,080 

2,080 

3,860

3,860 

2,800 

3,580 

1,590 

14,800

14,200 

11,400 

11,400 

11,500 

29.200

Concentration 

of suspension 

analyzed 

(ppm)

8,560 

1,870 

1,600 

577 

356

518 

514 

1,400 

733 

709

3,500 

671 

930 

1,840 

2,520

2,750 

7,370 

1,660 

1,410 

4,240

4,240 

9,340 

8,260 

4,330 

14,800

6,680 

4,540 

4,270 

5,480 

7.160

Percent finer 

0.002

12 

30 

37 

34 

36

23 

24 

33 

14 

10

17 

12 

11 

7 

9

12 

6 

7 

36 

9

2

8

24 

4

0.004

18 

44 

52 

49 

47

31 

35 

46 

16 

19

24 

19 

17 

9 

13

15 

9 

11 

39 

13

5 

12 

19 

93 

19

23 

30 

8 

29 

34

0.008

24 

57 

62 

59 

59

42 

42 

59 

23 

28

36 

26 

24 

12 

16

20 

14 

18 

48 

17

12 

13

34 

29

0.016

32

64 

68 

62 

64

46 

46 

71 

34 

36

43 

32 

32 

13 

20

23 

18 

26 

50 

23

21 

16 

31 

97 

28

33

38 

38 

40 

48

0.0

a Mean daily discharge
KANSAS RIVER BASIN Continued 

REPUBLICAN RIVER AT TRENTON, NEBR. Continu

Particle-size analyses of suspended sediment, water year October 1949 to Se

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, In distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Aug 9

Sept. 15 .................

Time

11:15 a.m. 

8:00 a.m. 

8:00 p.m. 

7:30 a. m. 

8:00 a. m.

8:00 a. m. 

10:45 a. m. 

10:45 a.m. 

4:20 p.m. 

4:25 p.m.

Discharge 

(secondfeet)

3,170 

814 

4,040 

5, b70 

520

2,920 

1,800 

1,800 

3,950 

302

Suspended sedi

Concentration 

of sample 

(ppm)

20,600 

6,160 

31,200 

30, 800 

3,170

19,700 

12,600 

12,800 

22,600 

3,240

Concentration 

of suspension 

analyzed 

(ppm)

6,680 

4,280 

4,020 

9,180 

1,700

4,360 

5,320 

5,170 

5,450 

3,450

Percent finer 

0.002

26

5

0.004

37 

60 

29 

24 

48

22

35 

10 

30 

44

0.008

41 

38

0.016

51 

76 

33 

37 

57

34 

48 

48 

43

55

0
KANSAS RIVER BASIN Continued

REPUBLICAN RIVER NEAR ORLEANS, NEBR.

LOCATION. At gaging station at bridge on State Highway 89, 100 feet downstream from Chicago, Burlingto

Orleans, Harlan County, and 2j miles upstream from Sappa Creek. 

RECORDS AVAILABLE. Chemical analyses: December 1949 to September 1950. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply fape

Chemical analyses, in parts per million, October 1948 to September 

Date of collection

Dec. 1, 1949 .........

Dec. 14... ...........

Jan. 22, 1950. ........

July 6 ...............

Sept. 28 .............

Discharge 

(secondfeet)

a41 

323 

120 

230 

220 

620

442 

263 

a 55 

502 

141 

178

PH

7.4 

8.4 

8.3 

8.0 

8.2 

8.1

8.4 

8.1 

8.2 

7.9 

8.0 

8. 3

Specific 

conductance 

(micromhos at 

25° C )

440 

510 

640 

522 

565 

483

514 

539 

576 

329 

382 

529

Silica 

(SiO,)

42 

45 

46 

46 

50 

38

44 

42 

45 

22 

26 

40

Iron 

(Fe)

0.02 

.02 

.02 

.02 

.04 

.02

.04 

.02 

.05 

.02 

.02 

.02

Calcium 

(Ca)

46 

58 

70 

58 

65 

55

59 

60 

64 

43 

50 

65

Magnesium 

(Mg)

14 

11 

12 

16 

17 

14

15 

15 

16 

8.4 

4.6 

11

Sodium 

(Na)

Potassium 

(K)

32 

44 

63 

28 f 13 

40 

35

35 

39 

42 

12 

27 

38

Carbonate 

(CO,)

0 

11 

7 

0 

8 

0

11 

0 

9 

0 

0 

6

Bicarbonate 

(HCO,)

257 

250 

334 

275 

293 

253

245 

283 

278 

183 

177 

253

Sulfate 

(S04 )

18 

41 

50 

44 

45 

42

46 

47 

50 

13 

42 

52

Chloride 

(Cl)

8.0 

9. 5 

12 

11 

9 2 

8.2

9.0 

8.4 

12 

1.5 

4.5 

7.5

F

a Mean daily discharge.
KANSAS RIVER BASIN Continued 

REPUBLICAN RIVER NEAR HARDY, NEBR.

LOCATION. At gaging station at highway bridge, 1J miles southwest of Hardy, Nuckolls County.

DRAINAGE AREA. 22,400 square miles, of which about 16,700 square miles contribute directly to surface 

RECORDS AVAILABLE. Chemical analyses: December 1949 to September 1950.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply Pap

Chemical analyses, in parts per million, December 1949 to September 

Date of collection

Dec . 19, 1949 .....

May 8. .............

Sect. 5 ...........

Discharge 

(secondfeet)

414 

a 320 

a 550 

a 400 

580

519 

728 

5,220 

2,550 

917

Temperature 

<"F)

PH

7.7 

8.4 

8.0 

8.1 

8.3

7.9 

7.7 

7.7 

8.0 

7.8

Specific 

conductance 

(micromhos at 

25" C )

579 

492 

401 

547 

546

493 

419 

259 

263 

385

Silica 

(310,)

26 

44 

30 

36 

37

32 

26 

14 

20 

25

Iron 

(Fel

0.02 

.02 

.04 

.04 

.02

.02 

.06 

.04 

.02 

.02

Calcium 

(Ca)

72 

43 

47 

63 

65

52 

48 

37 

38 

48

Magnesium 

(Mg)

16 

18 

11 

15 

13

15 

11 

3.8 

3.6 

6.8

Sodium 

(Na)

Potassium 

(K)

37 

39 

26 

42 

39

38 

24 

9.9 

13 

26

Bicarbonate 

(HCOS )

303 

b231 

204 

288 

c281

248 

200 

142 

137 

185

Sulfate 

(SO,)

54 

56 

35 

51 

48

50 

35 

10 

15 

37

Chloride 

(Cl)

11 

11 

6.8 

10 

9.6

11 

7.5 

.5 

1.0 

5.5

F

r

(

a Mean daily discharge.

b Includes equivalent of 8 parts per million of carbonate (CO3).

c Includes equivalent of 10 parts per million of carbonate (CO3).

Periodic determinations of suspended-sediment discharge, water years October 1847 

Date

June 23, 1947 ..........

Julv 9. 1950 ...........

Instantaneous 

water discharge 

(second-feet)

15,600 

19.800

Suspended s

Mean 

concentration 

(ppm)

18,600 

11.500
KANSAS RIVER BASIN

KANSAS RIVER BASIN Continued 

SOUTH PORK REPUBLICAN RIVER NEAR COLORADO-KANSAS STATE LINE

LOCATION. At gaging station at bridge on county road 2 miles downstream from ColoradoKansas State line, 5 miles downstream from Beaver Creek, 11 miles downstream from Bonny 

Dam, and 15 miles southwest of St. Francis, Cheyenne County, Kans.

DRAINAGE AREA. 1,860 square miles.

RECORDS AVAILABLE. Sediment records: October 1948 to September 1950. (discontinued)

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, not determined; minimum daily,

no flow.June 27, 28, July 15.

Sediment loads: Maximum daily, 1,300 tons Aug. 10; minimum daily, 0 tons June 27, 28, 

July 15.

EXTREMES, 1948-50. Sediment concentrations: Maximum daily, 7,690 ppm May 30, 1949; 

minimum daily, no flow Aug. 7-14, 1949, June 27, 28, July 15, 1950.

Sediment loads: Maximum daily, 32,100 tons Aug. 17, 1949; minimum daily, 0 tons Aug. 7- 

14, 1949, June 27, 28, July 15, 1950.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in 

Water-Supply Paper 1176.

Periodic determinations of suspended-sediment discharge

Date

Instantaneous 

water discharge 

(second-feet)

Suspended sediment

Mean 

concentration 

(ppm)

Instantaneous 

discharze 

(tons per day)

JULY TO SEPTEMBER 1946

July 16, 1946 .............

Sept. 24 ..................

45

24

198

58

131

24

4.9

3.3

16

8.5

WATER YEAR OCTOBER 1946 TO SEPTEMBER 1947

Sept. 15..................

Sept. 22 ..................

00

48

42

59

7.7

3.7

155

129

454

209

15,400

82

34

9.0

20

13

22

15

709

61

107,000

22,800

33

101,000

203,000

41,900

25

1.7

1.3

.07

.3

WATER YEAR OCTOBER 1947 TO SEPTEMBER 1948

Dec. 16 ..................

Jan. 12, 1948.............

Mav 17 ...................

47

37

45

39

26

364

125

34

22

44

38

21

80

8.8
390 MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued

SOUTH FORK REPUBLICAN RIVER NEAR COLORADO-KANSAS STATE LINE Continued 

Periodic determinations of suspended-sediment discharge Continued

Date

Instantaneous 

water discharge 

(second-feet)

Suspended sediment

Mean 

concentration 

(ppm)

I istantaneous 

discharge 

(i ons per day)

WATER YEAR OCTOBER 1947 TO SEPTEMBER 1948 Continued

Sent. 7 ...................

327

12 76

125

132

2.5

Monthly and annual summary ol water and suspended-sediment discharge, water year October 1949 to September 1950

Month

April ..............

September .........

Water year 1949-50

Discharge 

(secondfoot-days)

1,439 

1,449 

1,402

1,712 

1,634 

1,559 

1,379 

1,289 

528.9 

269.3 

1,283.1 

826

14,770.3

Runoff 

(acre -feet)

2,850 

2,870 

2,780

3,400 

3,240 

3,090 

2,740 

2,560 

1,050 

534 

2,540 

1,640

29, 290

Suspended sediment

Load 

(tons)

1,760 

468 

411

482 

994 

865 

380 

371 

184 

700 

3,000 

210

9,820

Daily load (tons)

Mean

56 

16 

13

16 

36 

28 

13 

12 

6.1 

23 

97 

7.0

27

Maximum

700 

32 

28

90 

112 

76

40 

400 

1,300 

30

1,300

Minimum

5 

3 

2

1 

9 

5

0 

0 

(t)

n

Concentration (ppm)

Weighted 

mean

450 

120 

108

104 

225 

205 

102 

107 

129 

963 

866 

94

--

Maximum 

daily

205 

197

415 

457

--

t Sediment discharge less than 1.0 ton.
KANSAS RIVER BASIN Continued 

SOUTH FORK REPUBLICAN RIVER NEAR COLORADO-KANSAS STATE 

Particle-size analyses of suspended sediment, October 1949 t

(Methods of analysis: B, bottom withdrawal tube; D, decantation; p, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanical

Date of collection

Apr. 3 ..................

Time

3:25 a.m. 

4:20 a.m. 

b:00 a. m. 

6:30 a.m. 

2:45 p.m.

8:40 a. m. 

8:40 a.m. 

3:00 p.m. 

4:35 p.m. 

4:50 p. m.

3:40 p.m. 

3:20 p.m.

Discharge 

(secondfeet)

68 

70 

70 

70 

79

62 

57 

52 

41 

41

53 

47

Suspended sed

Concentration 

of sample 

(ppm)

4,170 

3,750 

961 

2,180 

1,410

676 

192 

710 

172 

134

273 

216

Concentration 

of suspension 

analyzed 

(ppm)

2,950 

2,560 

409 

1,420 

5,210

539 

448 

4,340 

1,250 

1,420

1,300 

1.420

Percent fine

0.002

36 

36 

52 

24 

13

32 

23 

5 

16 

14

7 

8

0.004

50 

54 

54 

36 

22

38 

24 

8 

19 

17

12 

13

0.008

65 

66 

59 

49 

30

44 

30 

10 

24 

22

17 

16

0.016

75 

78 

64 

59 

37

56 

36 

12 

32 

30

29 

22
KANSAS RIVER BASIN Continued 

RED WILLOW CREEK NEAR RED WILLOW, NEBR.

LOCATION. At gaging station at bridge on U.S. Highways 6 and 34, three-quarters of a mile north of Re

from mouth.

DRAINAGE AREA. 710 square miles, of which only about 400 square miles contribute directly to surface 

RECORDS AVAILABLE. Water temperatures: January to September 1950.

Sediment records: January to September 1950.

EXTREMES, January to September 1950. Water temperatures: Maximum, 84°F June 12, 13, 24, July 1; mini

to March.

Sediment concentrations: Maximum daily, 28,100 ppm May 8; minimum daily, 85 ppm Jan. 5.

Sediment loads: Maximum daily, 45,000 tons July 31; minimum daily, 4 tons Jan. 5. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply Pap

Chemical analyses, in parts per million, December 1949 to Septemb

Date of collection

Dec. 1, 1949 ........

Dec. 27 .............

Feb. 28, 1950 .......

May 9 ..............

July 12 .............

Sept. 29 ............

Discharge 

(secondfeet)

25 

45 

53

84 

a 174 

22

pH

8.4 

7.8 

8.0

7.7 

7.4 

8.2

Specific 

conductance 

(micromhos at 

25° C )

541 

532 

472

413 

300 

518

Silica 

(SiO,)

51 

47 

46

31 

34 

49

Iron 

(Fe)

0.02 

.02 

.04

.02 

.08 

.02

Calcium 

(Ca)

08 

67 

61

54 

43 

65

Magnesium 

(MB)

13 

16 

13

10 

9.1 

17

Sodium 

(Na)

Potassium 

(K)

41 

32 

28

24 

7.1 

29

Carbonate 

(COS)

15 

0 

0

0 

0 

6

Bicarbonate 

(HCO,)

303 

324 

282

234 

183 

301

Sulfate 

(S04)

21 

18 

20

24 

4.0 

22

Chloride 

(Cl)

9.0 

8.5 

5.8

7.0 

2.0 

6.5

a Mean daily discharge.
KANSAS RIVER BASIN 393

KANSAS RIVER BASIN Continued 

RED WILLOW CHEEK NEAR RED WILLOW, NEBR. Continued

Temperature (°F) of water, January to September 1950 

/Snce-daily temperature measurement generally between 1 p. m. and 7 p. m.7

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Average

Oct. Nov. Dec.

..

--

..

-.

_.

--

35

"

..

--

33

34

--

Jan.

34

32

32

32

33

33

33

34

34

33

32

32

34

33

32

33

34

35

37

33

--

"

..

--

--

--

--

Feb.

32

_

37

_

-.

--

__

35

_

35

35

36

36

33

34

37

38

39

41

41

39

--

--

Mar.

40

35

41

47

52

50

34

43

34

32

32

33

34

39

42

45

34

38

37

41

45

48

46

53

49

42

42

43

43

45

41

Apr.

52

57

44

45

49

49

54

47

48

47

48

50

47

52

51

55

__

53

56

59

68

67

53

53

53

55

48

44

56

--

52

May

56

60

55

53

52

62

55

59

59

59

65

65

64

65

67

71

72

67

65

65

69

71

74

64

50

49

58

55

51

65

66

62

June

65

66

65

70

75

77

77

74

75

73

77

84

84

82

83

73

66

68

69

74

80

82

81

84

82

..

75

74

75

80

-.

76

July

84

80

77

64

72

73

67

72

75

74

77

69

63

65

73

73

66

68

70

68

65

67

72

69

68

66

64

69

71

73

78

71

Aug.

69

7*

68

6?

73

74

6f

71

71

69

71

71

11

69

19

78

74

78

62

68

T3

69

75

69

75

68

69

65

64

63

Sept.

75

78

78

76

72

68

68

69

70

70

61

54

58

60

58

60

63

70

71

70

64

63

65

64

62

61

66

59

72

71

70 | 66
394 MISSOURI RIVER BASIN 

KANSAS RIVER BASIN Continued

RED WILLOW CREEK NEAR RED WILLOW, NEBR. Continued 

Suspended sediment, January to September 1950

Day

1

! __-._

a......

3- _____

4 ......

5 

6 ......

7--. 

8------

9__-..__

10 

11 

12 ------

X3 ------

14 ......

15 

16 

17 

18------

19-___-_

20 

21------

22------

O4 ^ ,3 ______

24------

25------

26------

27------

28------

29_ __ _,

30 

31 

Total1 

2------

3-~____

4 

5 ......

6 . 

7 

------

9 

10 

11 ......

12 

ljj_ _ ___

14 ... .

15 

16---- 

17 

18------

19------

20 

21 

22 

23 

24 

25 ------

26 

27-- - 

28 - 

29 

30 ------ 

31 -

Total

January

Mean

discharge 

(secondfeet)

50 

50 

20 

15 

20

20 

20 

25 

30 

30

30 

25 

25 

20 

25

25 

20 

20 

25 

30

40 

40 

35 

40 

20

25 

40 

30 

25 

25 

30

875

Suspended sediment

Mean 

concentration 

(ppm)

472 

437 

349 

175 

85

138 

135 

144 

157 

189 

124 

121 

176 

209 

183

179 

185 

132 

140 

160

226 

310 

282

162

-

Tons 

per 

day

64 

59 

19 

7 

4

7 

7 

10 

13 

15 

10 

8 

12 

11 

12

12 

10 

7 

9 

13

24 

33 

27 

e28 

e!3

e!5 

e22 

e!6 

e!2 

e!2 

13

524

April

47 

46 

46 

46 

45

46 

49 

57 

60 

60

56 

51 

47 

46 

44

43 

42 

39 

37 

36 

36 

35 

35 

35 

35 

34 

33' 

33 

34 

34

1,287

3,360 

3,300 

3,940 

3,500 

3,670

4,030 

3,960 

4,660 

4,940 

5,050 

4,260 

3,730 

3,210 

3,090 

2,850

3,150 

3,100 

2,740 

2,360 

2,070 

1,980 

2,220 

2,210 

2,090 

1,820 

1,600 

1,530 

1,320 

1,350 

1,550

-

426 

410 

489 

435 

446

500 

524 

717 

600 

818 

644 

514 

407 

384 

338

366 

352 

288 

236 

201 

192 

210 

209 

198 

172 

147 

136 

118 

124 

142

10, 940

February

Mean

discharge 

second* 

feet)

30 

25 

25 

35 

45

50 

45 

35 

50 

60 

55 

45 

40 

40 

50

55 

55 

95 

90 

80

75 

65 

55 

50 

50

50 

52 

54

1,456

Suspended sediment

Mean 

concentration 

(ppm)

159 

106

292

300 

270

352 

522 

1,560 

2,110 

2,550

2,300 

2,900 

5,120 

9,310 

9,720

7,760 

6,970 

6,740

~

Tons 

per 

day

13 

elO 

e9 

ell 

13

e!8 

e20 

e20 

e34 

47 

e44 

e36 

e32 

32 

36

52 

78 

400 

513 

550

466 

509 

760 

1,260 

1,310

1,050 

978 

983

9,280

May

32 

32 

33 

33 

38 

38 

40 

124 

101 

54

51 

48 

48 

45 

43

40 

38 

39 

38 

38 

36 

32 

30 

29 

28 

27 

27 

94 

177 

44 

38

1,515

1,500 

1,580 

1,560 

1,540 

2,400 

2,230 

2,150 

28, 100 

17,800 

7,020 

5,510 

4,460 

4,160 

3,740 

3,230

3,230 

3,020 

3,800 

3,460 

3,700 

2,840 

2,420 

2,320 

2,110 

1,490 

1,360 

1,410

16,600 

3,590 

2,020

-

130 

136 

139 

137 

246

229 

232 

s 10, 400 

s 5, 300 

.1,020

759 

578 

539 

454 

375

349 

310 

400 

355 

380 

276 

209 

188 

165 

113

99 

103 

e6,400 

s 11, 700 

426 

207

42,350

March

Mean

discharge 

'secondfeet)

52 

51 

49 

48 

46

46 

50 

50 

39 

44

40 

49 

46 

61 

50

43 

40 

40 

40 

42

42 

41 

41 

42 

42

44 

50 

56 

54 

50 

49

1,437

Suspended sediment

Mean 

concent-atlon 

(ppm)

5,500 

3,960 

3,840 

4,630 

4,880

3,980

4,190 

3,860 

4,740

3,050 

1,040 

1,040

8,050

5,640 

4,770 

3,940 

4,670 

4,860

4,130 

4,250 

4,600 

4,040 

4,770

4,940 

4,510 

4,760 

4,000 

3,570 

3.590

Tons 

per 

day

772 

545 

508 

600 

606

494 

e500 

566 

406 

563 

329 

138 

129 

e900 

1,090

655 

515 

426 

504 

551

468 

470 

509 

458 

541

587 

609 

720 

583 

482 

475

16,700

June

37 

36 

34 

33 

32

30 

29 

28 

27 

26 

26 

27 

26 

25 

25

27 

43 

28 

26 

28 

26 

26 

25 

24 

24

23 

22 

21 

21 

21

826

2,000 

2,050 

2,020 

1,850 

1,770

1,540 

1,380 

1,210 

1,080 

1,000

980 

1,140 

1,130 1,020" 

1,000

3,200 

2,120 

2,780 

2,400 

2,030 

1,900 

1,850 

1,370

1,150 

1,320 

1,060 

850 

860

--

200 

199 

185 

165 

153

125 

108 

91 

79 

70 

69 

83 

79 

69 

68

e400 

el, 800 

242 

149 

210 

168 

142 

128 

120 

89

71 

78 

60 

48 

49

5,500

e Estimated.

s Computed by subdividing day.
KANSAS RIVER BASIN 

KANSAS RIVER BASIN Continued 

RED WILLOW CREEK NEAR RED WILLOW, NEBR. Continued

395

Suspended sedime t. January to Seotember 19 50 --Continued

Day

2

15 

1ft

1 n

21

22

24

31 

TotalJuly \

Mean

discharge 

(secondfeet)

21 

21 

21 

54 

69

22 

21 

23 

40 

21

25 

174 

32 

31 

34

22

58 

46 

94 

47

288 

90 

78 

80 

221

342 

128 

70 

150 

510 

587

3,420

Suspended sediment

Mean 

concentration 

(ppm)

1,010 

980 

950 

7,430 

14,300

1,700 

1,200

1,500

27,600 

6,470

1,190

15,300 

5,670

24, 600 

10,300

8,570 

22,700

14,700 

11,500 

4,150

26,600 

25,000

--

Tons 

per 

day

57 

56 

54 

S3.070 

S3, 940

101 

68 

e!60 

el, 500 

85

e340 

s 14, 800 

S672 

e850 

e750

71 

e2,900 

el, 500 

S4.570 

s748

s 22, 800 

s2,700 

e2,000 

S2.120 

s 14, 700

817,000 

s4,230 

784 

67,800 

s 38, 500 

s 45, 000

193,900

August

Mean

charge 

(secondfeet)

155 

100 

74 

155 

66

55 

48 

41 

31 

38

29 

29 

28 

28 

27

26 

26 

25 

25 

24

23 

23 

22 

22 

22

23 

23 

22 

56 

31 

26

1,323

Suspended sediment

Mean 

concen - 

tration 

(ppm)

12,300 

7,700 

5,350 

17,200 

3,800

2,370 

2,130 

1,430 

780

842 

807 

1,010 

782 

798

790 

766 

626 

503 

445

490 

478 

428 

566 

579

1,140 

811 

697 

6,600 

2,640 

1,200

Tons 

per 

day

s 5, 240 

2,080 

1,070 

S9.110 

677

352 

276 

158 

65 

6600

66 

63 

76 

59 

58

55 

54 

42 

34 

29

30 

30 

25 

34 

34

71 

50 

41 

s 1, 240 

s226 

84

22,030

September

Mean

charge 

(secondfeet)

28 

28 

26 

26 

24

23 

22 

22 

21 

21

21 

21 

22 

23 

249

48 

38 

37 

34 

33

31 

29 

29 

28 

26

25 

24 

23 

23 

22

1,027

Suspended sedin-ent

Mean 

concentration 

(ppm)

1,470 

1,400 

1,140 

1,010 

792

721 

620 

631 

527 

501

500 

461 

550 

604 

9,510

4,200 

1,010 

914 

790 

723

626 

538 

497 

456 

410

373 

364 

328 

353 

343

-

Tors 

pe~

da;-

111 

106 

80 

71 

51

45 

37 

37 

30 

28

28 

26 

33 

38 

s 10, 300

s596 

104 

e91 

672 

64

52 

42 

39 

34 

29

25 

24 

20 

22 

20

12, 260

Total discharge for period Jan. 1 to Sept 30 (second-foot-days) 

Total load for period Jan. 1 to Sept. 30 (tons) ................

13,166

313, 500

e Estimated.

s Computed by subdividing, day.
KANSAS RIVER BASIN Continued 

RED WILLOW CREEK NEAR RED WILLOW, NEBR.--Contin

Particle-size analyses of suspended sediment, November 1949 to Sep

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Nov. 2, 1949 ............

Jan. 21, 1950 ...........

Feb. 1 .................

Feb. 18 ................

Feb. 28 ................

Mar. 10 ................

Mar. 14 ................

Mar. 15 ................

Mar. 16 ................

Mar. 16 ................

Mar. 19 ................

Mar. 27 ................

Mar. 28 ................

Apr. 5 .................

May 8 ..................

May 8 ..................

May 8 ..................

May 9 ..................

May 9 ..................

May 29 .................

June 17 .................

July 4 ..................

July 5 ..................

July 5 ..................

July 5 ..................

July 12 .................

July 12 .................

July 12 .................

July 21 .................

a Mean daily discharge .

Time

9:45 a.m. 

5:15 p. m. 

4:15 p.m. 

6:00 p.m. 

3:45 p.m.

3:00 p. m. 

1:00 p. m. 

1:00 p.m. 

1:30 p.m. 

3:30 p. m..

3:30 p. m. 

3:00 p. m. 

1:00 p. m. 

12:30 p. m. 

1:45 p.m.

9:25 a.m. 

12:30 p.m. 

6:30 p. m. 

2:20 p. m. 

2:20 p.m.

6:15 a.m. 

10:00 a. m. 

8:30 p. m. 

7:15 a.m. 

9:20 a. m.

5:45 p. m. 

7:15 a.m. 

10:00 a.m. 

7:00 p.m. 

12:00 m. 

7:45 a. m.

Discharge 

(secondfeet)

29 

a 40 

a 30

a 95 

54

40 

48 

78 

50 

41

41 

40 

50 

56 

45

57 

168 

145 

85 

85

197 

40 

204 

73 

54

27 

256 

160 

127 

153 

427

Suspended sedim

Concentration 

of sample 

(ppm)

990 

253 

160 

1,960 

6,720

3,630 

5,180 

2,970 

8,030 

5,400

5,400 

4,900 

4,680 

4,820 

3,690

9,890 

43,000 

22, 500 

16,600 

16,600

22,400 

12, 200 

33, 800 

19,400 

15, 500

6,680 

33, 100 

33, 500 

24,800 

30, 300 

36,400

Concentration 

of suspension 

analyzed 

(ppm)

723 

545 

854 

2,850 

9,620

1,960 

2,630 

1,900 

4,870 

2,970

3,300 

2,950 

3,040 

2,800 

4,230

6,280 

8,090 

8,430 

8,970 

8,630

8,650 

9,020 

6,110 

7,880 

5,300

5,170 

5,790 

4,810 

9,260 

10, 300 

5,800

Percent finer t

0.002

9 

15 

29 

17 

6

8 

2

19 

3

0.004

17 

20 

40 

28 

8

14 

10 

15 

8 

9

4 

13 

10

12

31 

31 

25 

24 

6

30 

53 

30 

39 

48

53 

32 

34 

30 

23 

18

0.008

22 

25 

48 

44 

14

15 

8

32 

26

0.016

32 

29 

52 

60 

20

25 

21 

31 

19 

23

18 

22

23 

21

52 

52 

45 

44 

40

46 

72 

51 

66 

74

73 

54 

55 

51 

38 

30

0.0
July 30 .................

Sept. 15 ................

Sept. 19 ................

10:15 a.m.

7:15 a.m.

7:15 a.m.

4:45 p. m.

578

155

912

722

324

334

959

34

28, 500

19,800

15,600

24,400

29,800

22, 600

24,400

29,200

16,200

788

4,820

6,480

4,340

8,090

8,300

7,720

5,040

8,170

5,130

9,330

6,430

4,940

4,280

1,620

._

28

26

31

28

32

24

24

33

29

26

26

35

39

42

36

_.

___

___

46

42

53

42

48

38

38

47

44

41

40

51

58

61

61

53
MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued 

MEDICINE CREEK AT CAMBRIDGE, NEBR.

LOCATION. At bridge in City Park at east edge of Cambridge, Furnas County, about 500

feet upstream from bridge on U. S. Highways 6 and 34, half a mile upstream from mouth,

2 miles downstream from gaging station, and 9£ miles downstream from K<?dicine Creek

Dam. 

DRAINAGE AREA. 1,070 square miles above gaging station, of which only about 680 miles

contribute directly to surface runoff.

RECORDS AVAILABLE. Sediment records: November 1945 to December 1949. (discontinued). 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, not determined; minimum

daily, not determined. 

Sediment loads: Maximum daily, 380 tons Oct. 10; minimum daily, less than 1 ton on

many days. 

EXTREMES, 1945-50. Sediment concentrations: Maximum daily, not determined; minimum

daily, not determined. 

Sediment loads: Maximum daily, 3,700,000 tons June 22, 1947; minimum diily, less than

1 ton on many days during August to December 1949. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in

Water-Supply Paper 1176. No appreciable inflow between sampling point and gaging

station except during periods of heavy local rains.

Suspended sediment, October to December 1949

Day

1 

2

3

4 

5 

7 . 

9- - --

10 

11 

12

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

October

Mean 

discharge 

(secondfeet)

3.8 

4.5

3 5

2 5

2 5

4.4 

5.0

5.5

6. 6

20

5.5

5.5

5.5

5.2

5.5

5.8

5.8

6.0

6.2

6.2

6.0

5.5

5.5

5.5

5.5

5.5

5.2

5.0

5.0

4.5

4.8

173.5

Suspended sediment

Mean 

concentration 

(ppm)

30

48

opoo 

34

30

65 

64

K.A 31

225

114

86

63

33

33

47

-

Tons 

per 

day

(t)

(t)

(t) 

(t)

(t)

(t)

(t)

(t)

e 12 

e380

3 

2

2

1

(t)

(t)

(t)

420

November

Mean 

discharge 

(secondfeet)

4.8 

4. 8

5

5.5

5.5

5.5 

6

4.5

4

4.2

6.5 

10

15

15

20

26

30

29

28

26

27

27

26

12

6.0

4.5

4.0

3.8

3.2

3.0

371.8

Suspended sediment

Mean 

concentration 

(ppm)

47 

43

23

71 

120

106

106

86

294

311

284

328

211

199

193

181

84

42

31

28

25

21

20

Tons 

per 

day

(t)

(t)

(t)

1 

3

4

4

5

21

25

22

25

15

14

14

13

3

(t)

(t)

(t)

(0

(t)

(t)

176

December

Mean 

discharge 

(secondfeet)

3.0 

3 2

5^5

4.5

4

3

O

3

3

3 5

2 

2

2

2.5

3

3.5

3

2.5

2

1.5

1.5

1.5

1.5

2

2.5

3

3.5

4.5

5

5

4.5

94.2

Suspended sediment

Mean 

cfmcent'ation 

(ppm)

34 

74

182

64

.

Tons 

per 

day

(t)

(t)

3

w

w

10

Total discharge for period Oct. 1 to Dec. 31 (second-foot-days) ......................................... 639. 5

Total load for period Oct. 1 to Dec. 31 (tons) .......................................................... 606

e Estimated.

t Less than 1 ton.
KANSAS RIVER BASIN Continued 

MEDICINE CREEK AT CAMBRIDGE, NEBR.--Contin

Particle-size analyses of suspended sediment, October 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanical

Date of collection

Oct. 11 ..................

Time

1:30 p.m. 

12:50 p.m.

Discharge 

(secondfeet)

8.6 

5.8

Suspended sed

Concentration 

of sample 

(ppm)

3,720 

210

Concentration 

of suspension 

analyzed 

(ppm)

2,590 

147

0.002

56 

53

0.004

68 

72

Percent fine

0.008

90

84

0.016

95 

92
400 MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued 

SAPPA CREEK NEAR BEAVER CITY, NEBR.

LOCATION. At bridge on U. S. Highway 283, 200 feet upstream from gaging station, and 7

miles southwest of Beaver City, Furnas County. 

DRAINAGE AREA. 1,500 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1948 to September 1949. 

Water temperatures: January 1949 to September 1950. 

Sediment records: April 1947 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum, 82°F June 15, 17; minimum, freezing

point on several days during December to March. 

Sediment concentrations: Maximum daily, 12,800 ppm July 26; minimum daily, not

determined. 

Sediment loads: Maximum daily, 39,700 tons Aug. 7; minimum daily, less than 1 ton on

many days. 

EXTREMES, 1947-50. Water temperatures (January 1949 to September 1950): Maximum, not

determined; minimum, freezing point on many days during winter months. 

Sediment concentrations: Maximum daily, 14,500 ppm June 18, 1949; minimum daily, not 

determined. 

Sediment loads: Maximum daily, 42,700 tons June 22, 1947; minimum daily, less than 1

ton on many days each year.

REMARKS. Records of discharge for water year October 1949 to September 1°50 given in 

Water-Supply Paper 1176.

Temperature (°F) of water, water year October 1949 to September 1950 

/Once-daily temperature measurement generally between 9 a. m. and 6 p. m.7

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

Average

Oct.

56

_.

59

58

59

61

59

58

48

55

53

53

52

52

--

51

51

51

54

49

..

45

48

43

45

47

48

47

52

44

49

52

Nov.

51

44

49

50

50

_.

49

41

50

49

49

47

49

45

46

42

43

46

42

43

43

42

43

43

46

49

48

43

45

42

--

46

Dec.

43

45

39

39

39

39

__

33

32

38

33

34

33

33

34

37

36

35

35

32

34

34

36

35

33

34

35

36

35

38

35

36

Jan.

35

34

32

33

32

35

._

35

36

34

35

35

34

34

35

35

34

34

34

35

36

36

35

33

35

32

32

34

33

33

34

34

Feb.

34

32

34

35

37

35

35

35

38

36

47

35

35

33

35

36

38

35

35

36

34

35

37

38

35

38

37

35

_.

_

--

36

Mar.

34

35

36

36

41

39

32

34

40

34

32

32

34

34

35

39

42

33

35

35

43

45

38

47

43

52

45

39

44

48

--

38

Apr.

52

54

38

45

41

54

48

50

57

51

53

56

52

51

--

49

_

54

51

57

61

68

68

54

--

54

55

49

45

51

--

52

May

53

62

59

59

44

64

58

70

66

64

57

71

58

60

68

64

64

65

67

60

50

60

64

--

53

51

52

48

65

58

60

60

 

June

58

62

60

66

75

73

78

70

63

75

71

73

80

82

69

32

69

74

71

80

75

80

73

73

78

66

72

75

68

--

72

July

68

68

6<»

69

64

67

68

71

73

75

72

71

676"

6'1

71

6f>

6P

65

66

68

68

68

69

67

68

6?

7!

72

6E

73

69

Aug.

69

69

69

70

72

70

66

70

69

71

74

75

69

70

71

72

73

74

68

65

* 68

70

70

73

74

68

65

68

66

66

67

70

Sept.

70

74

72

70

67

67

68

65

68

62

59

57

58

60

61

63

64

63

66

68

63

64

62

63

62

63

63

60

68

74

--

65
KANSAS RIVER BASIN

KANSAS RIVER BASIN Continued

SAPPA CREEK NEAR BEAVER CITY, NEBR. Continued

401

Suspended sediment, water year^ October 1949 to September 1950

Day

2

12

20

23

25 

97

29

Totalq

g

19

IP

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

October

Mean

charge 

(secondfeet)

15 

14 

16 

17 

18

15 

14 

14 

14 

28

38 

62 

54 

30 

31

31 

24 

20 

19 

19

17 

16 

17 

15 

14

14 

15 

14 

14 

15 

14

658

Suspended sediment

Mean 

concentration 

(PPm)

41

1,500

866 

1,180 

1,250 

1,650 

1,130

800 

473 

249 

188 

180

102 

79 

76 

66 

50

45 

36

Tons 

per 

day

2

s!31

89 

s313 

182 

134 

95

67 

31 

13 

10 

9

5 

3 

4 

3 

2

2 

1

1,120

January

14 

14 

12 

12 

10

8 

6 

8 

8 

10

10 

10 

10 

10 

12

12 

12 

12 

12 

10

10 

10 

10 

10 

10

10 

10 

10 

8 

6 

6

312

12

11

--

« 

(t)

w

13

November

Mean

charge 

(second - 

feet)

14 

13 

13 

14 

14

15 

14 

14 

14

14

15 

14 

14 

14 

14 

16 

17 

16 

15 

15

15 

15 

16 

15

15 

15 

16 

16 

16

444

Suspended sediment

Mean 

concentration 

(ppm)

35 

27

10

Tons 

per

day

1 

1 

(t)

24

February

6 

6 

6 

6 

8 

10 

10 

10 

12 

12

12 

12 

12 

12 

12

12 

14 

16 

17 

17

18 

20 

20 

22 

22 

24 

26 

28

402

14 

20

42 

53 

115

(t) 

(t)

(t)

3 

4 

9

30

December

Mean

charge 

(secondfeet)

16 

15 

16 

15 

15

14 

12 

14 

16 

16

14 

12 

10 

10 

10

10 

10 

10 

12 

14

14 

12 

10 

10 

10

10 

10 

12 

12 

12 

12

385

Suspended sediirent

Mean 

concentration 

(ppm)

17 

13 

10

--

Tors 

per 

day

(f 

(')

n

14

March

28 

30 

30 

30 

30 

30 

26 

25 

20 

15

15 

15 

10 

10 

10

10 

10 

15 

15 

20

21 

19 

18 

20 

17

18 

- 18 

20 

15 

15 

22

597

105 

90 

93 

55 

188

174 

177 

144 

215 

98

72 

75 

65 

70 

68

36 

70 

50 

130 

125 

76 

45 

39 

39 

41

35 

41 

56 

23 

36

 

8 

7 

8 

4 

15 

14 

12 

10 

12 

4

3 

3 

2 

2 

2 

1 

2 

2 

5 

7 

4 

2 

2 

2 

2 

2 

2 

3 

1 

2 

e4

149

e Estimated.

s Computed by subdividing day.

t Less than 1.0 ton.
402 MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued 

SAPPA CREEK NEAR BEAVER CITY, NEBR. Continued 

Suspended sediment, water year October 1949 to September 1950 Continued

Day 

1 

2------

3 ......

4 

5 ......

7... 

------

Q______

10 . 

11 

12 

13 -____-

14 ......

15 

16 

17 

IP10------

19_____-

on£U------

21 .. -

22 

23------

24 

25------

26---- 

27------

28------

gg _ _ 

30------

31 

Total1 

2-----

3_.-__

4 .....

5 

6 

7 .... .

9 

10 

11 .....

12 

13 

14 

15 

16 -

17 .....

18 

19 

20 

21 

22 ----- 

23 

24 ----- 

25 

26 

27 

28 ----- 

29 - - 

30 

31 

Total

April |

Mean

discharge 

secondfeet)

18 

13 

12 

11 

12

12 

14 

12 

14

14

14 

14 

12 

11 

15

15 

14 

12 

13 

13

14 

16 

16 

14 

15 

14 

14 

14 

14 

14

410

Suspended sediment

Mean 

concentration 

(ppm)

30 

27

12

16

23

46

Tons 

per 

day

1 

1

(t)

(t>

(t) 

2

20

July

52 

20 

15 

12 

90 

82 

60 

32 

15 

12 

20 

618 

1,140 

312 

64

38 

28 

451 

443 

87

49 

520 

333 

77 

118 

1,120 

2,730 

1,580 

388 

244 

925

11,675

5,360 

2,000 

650 

1,310 

9,590

7,530 

4,490 

2,990 

1,080 

480

1,050 

8,930 

5,050 

5,340 

3,270 

1,640 

585 

9,890 

8, 380 

4,230

3,080 

12,000 

8,340 

5,400 

5,870 

12,800 

3,780 

4,160 

7,590 

5,940 

9,750

-

s792 

108 

26 

s61 

s2,420

s 1, 760 

727 

s278 

44 

16

57 

s 17, 700 

15,500 

s4,840 

s603

s!75 

44 

si 5, 600 

s 11, 000 

si, 040 

408 

s 18, 900 

s 7, 780 

si, 190 

s2, 530

s 3 4, 600 

27,900 

s 17, 000 

s 8, 290 

s 5, 250 

s 23, 900

220, 500

May

Mean

discharge 

second - 

feet)

15 

13 

13 

14 

14

16 

16 

14 

17 

22

14 

29 

16 

14 

14

14 

14 

14 

14 

34

21 

21 

15 

14 

12

13 

13 

72 

84 

37 

36

669

Suspended sediment

Mean 

concentration 

(ppm)

60 

47 

50 

76 

96

75 

63 

64 

101 

124

69 

5,110 

2,820 

244 

160

164 

141 

135 

122 

3,980

2,350 

354 

236 

175 

136

113 

110 

11,400 

8,400 

1,380 

1,500

--

Tons 

per 

day

2 

2 

2 

3 

4

3 

3 

2 

5 

7 

3 

si, 130 

122 

9 

6

6 

5 

5 

5 

s506

s!54 

20 

10 

7 

4

4 

4 

s2, 660 

s2, 180 

s!54 

146

7,170

August

478 

182 

250 

214 

131

412 

2,240 

613 

240 

185

419 

417 

574 

158 

97 

77 

77 

104 

158 

182

140 

92 

64 

56 

51

72 

104 

102 

125 

222 

170

8,406

5,940 

3,230 

3,400 

2,560 

.1,830

5,890

6, 550 

10,900 

12,400 

4,880 

2,340

1,300 

1,050 

1,150 

2,090 

2,360

1,760 

1,180 

1,040 

940 

930

1,760 

4,660 

4,250 

5,160 

6,330 

5,860

s8, 160 

s 1, 630 

s2, 400 

si, 440 

647 

e 17, 000 

s 39, 700 

67,700 

e 2, 900 

e2, 400

s7, 210 

s 12, 800 

s 2Q, 000 

s2,180 

613 

270 

218 

322 

892 

1,160

665 

293 

180 

142 

128 

s369 

1,310 

1,170 

1,740 

S3.980 

s2,880

142, 500

June

Mean

discharge 

second - 

feet)

25 

36 

44 

24 

13

10 

10 

10 

10 

10

10 

9.9 

7.5 

9.0 

8.1

8.1 

8.7 

9.0 

8.4 

8.7

9.0 

9.0 

9.0 

9.0 

9.0

8.4 

8.1 

5.6 

8.4 

100

454.9

Suspended sediment

Mean 

concentration 

(ppm)

805 

1,640 

1,620 

774 

446

351 

286 

228 

208 

202 

199 

192 

182

160

129 

123 

122 

117 

113 

225 

5,870

Tons 

per

day

54 

s!76 

192 

50 

16

10 

8 

6 

6 

5

5 

5 

4

4

3 

3 

3 

3 

2 

5 

s 2, 270

2.870

September

102 

66 

45 

37 

32

28 

26 

23 

22 

21

19 

19 

19 

18 

18 

18 

18 

18 

18 17 ' 

17 

17 

18 

15 

16

15 

13 

13 

13 

14

735

3,370 

1,780 

1,030 

630 

506

380 

314 

269 

240 

202

174 

160 

150 

144 

152 

140 

131 

131 

127 

117

109 

106 

94 

97 

136

120 

100 

101 

108 

111

928 

317 

125 

63 

44 

29 

22 

17 

14 

11

9 

8 

8 

7 

7 

7 

6 

6 

6 

5 

5 

5 

5 

4 

6

5 

4 

4 

4 

4

1,680

Total discharge for year (second-foot-days) ..................................................... 25,147.

Total load for year (tons)...................................................................... 376,100

e Estimated.

s Computed by subdividing day.

t Less than 1.0 ton.
KAUSAS RIVER BASIN Continued 

SAPPA CREEK NEAR BEAVER CITY, NEBR.--Continu

Particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Oct. 10, 1949 ...........

May 20. ................

May 28. ................

May 28. ................

May 29. ................

July 5 .................

July 6 .................

July 13...... ...........

July 13. ................

July 14. ................

July 18. ................

July 19. ................

July 22... ..............

July 22. ................

July 26. ................

Time

4:00 a.m. 

4:00 a. m. 

8:10 a.m. 

10:10 a.m. 

8:30 a.m.

6:00 p. m. 

11:50 a.m. 

6:00 a.m. 

6:45 p. m. 

1:50 p. m.

10:00 p. m. 

1:30 p. m. 

6:30 a.m. 

5:10 p.m. 

5:10 p.m.

8:45 a.m. 

7:05 a.m. 

11:30 p. m. 

1:10 p. m. 

1:10 p. m.

9:45 a.m. 

1:30 p.m. 

6:00 a.m. 

9:30 a. m. 

8:45 p.m.

1:55 p. m. 

6:45 p. m. 

6:45 p. m. 

8:30 p.m. 

2:50 n. m.

Discharge 

(secondfeet)

34 

34 

21 

77 

56

117 

60 

68 

41 

52

31 

176 

70 

155 

155

100 

322 

1,020 

882 

882

1,200 

1,260 

478 

622 

214

718 

754 

754 

250 

1.720

Suspended sedi

Concentration 

of sample 

(ppm)

7,880 

7,880 

432 

2,400 

1,020

32,400 

15,100 

16, 400 

10, 200 

5,280

5,940 

11,000 

9,460 

8,500 

8, 500

8,710 

16, 600 

7,780 

11,700 

11,700

5,200 

4,750 

6,380 

21,000 

5,760

15,800 

10, 300 

10, 300 

13,900 

18.500

Concentration 

of suspension 

analyzed 

(ppm)

2,780 

2,740 

309 

1,190 

739

11,300 

6,520 

6, 590 

7,120 

2,530

3,970 

7,620 

7,390 

4,250 

4,060

5,810 

7,540 

5,820 

5,720 

5,770

5,260 

4,000 

4,270 

8,560 

3,380

5,110 

4,210 

4,080 

3,690 

7.680

Percent finer 

0.002

40 

15 

35 

43 

42

28 

9

30 

9

35 

19

30

0.004

52 

27 

56 

71 

68

35 

50 

44 

68 

59

79 

57 

67 

40 

23

69 

40 

59 

45 

23

68 

71 

62 

44 

66

41 

51 

35 

56 

40

0.008

78 

64 

78 

82 

88

61 

51

62 

52

59 

52

50

0.016

91 

92 

92 

89 

94

69 

85 

69 

95 

80

95 

88 

94 

84 

78

97 

68 

82 

75 

70

82 

84 

77 

82 

82

63 

67 

65 

81 

62

0
KANSAS RIVER BASIN Continued 

SAPPA CREEK NEAR BEAVER CITY, NEBR. Continu

Particle-size analyses of suspended sediment, water year October 1949 to Se

(Methods of analysis: B, bottom withdrawal tube; C, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date oi collection

July 27 ................

Sept. 1 ................

Time

2:50 p.m. 

9:55 p. m. 

1:15 p. m. 

11:50 a.m. 

11:50 a. m.

12:30 a. m. 

4:00 a. m. 

4:15 p.m. 

1:15 a.m. 

9:20 a.m.

8:30 a.m. 

5:45 p.m. 

9:10 a.m. 

7:20 p.m.

Discharge 

(secondfeet)

1,720 

2,190 

3,270 

1,000 

1,000

3,670 

2,820 

1,930 

610 

854

134 

280 

190 

97

Suspended sedim

Concentration 

of sample 

(ppm)

18, 500 

5,900 

3,920 

8,960 

8,960

9,320 

6,450 

4,540 

16,800 

14, 700

5,860 

6,920 

6,470 

2,760

Concentration 

of suspension 

analyzed 

(ppm)

7,820 

6,170 

2,940 

3,730 

3,520

6,280 

4,650 

3,280 

6,500 

9,570

3,860 

5,010 

4,760 

3,860

Percent finer 

0.002

3

40 

15

0.004

10 

68 

81 

50 

31

46 

63 

71 

35 

44

45 

52 

54 

68

0.008

37

58 

45

0.016

56 

93 

94 

68 

62

82 

91 

89 

56 

71

72 

79 

82 

91

0.
KANSAS RIVER BASIN 405

KANSAS RIVER BASlN Continued 

SAPPA CREEK NEAR STAMFORD, NEBR.

LOCATION. At county highway bridge, 500 feet upstream from gaging station which is 2 miles

east of Stamford, Harlan County, and 5| miles upstream from mouth. 

DRAINAGE AREA. 3,840 square miles, of which only 3,560 square miles contribute directly

to surface runoff.

RECORDS AVAILABLE. Chemical analyses: October 1948 to September 1949. 

Water temperatures: November 1949 to September 1950. 

Sediment records: March 1947 to September 1950.

EXTREMES, 1949-50. Water temperatures: Maximum 85°F June 23; minimum, freezing point on 

many days during December to February. 

Sediment concentrations: Maximum daily, 9,550 ppm July 20; minimum daily, not

determined. 

Sediment loads: Maximum daily, 25,300 tons Aug. 8; minimum daily, less than 1 ton on

many days in January and February. 

EXTREMES, 1947-50. Sediment concentrations: Maximum daily, 15,900 ppm Mar. 3, 194?;

minimum daily, not determined. 

Sediment loads: Maximum daily, 180,000 tons (estimated) June 22, 1947; minimum daily,

less than 1 ton on many days 1948-50.

REMARKS. Records of discharge for water year October 1949 to September 1950 given in 

Water-Supply Paper 1176.

Temperature (°F) of water, November 1949 to September 1950 

/Once-daily temperature measurement between 10 a. m. and 6 p. m.7

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

Average

Oct. Nov.

..

--

_.

--

--

._

--

--

--

--

..

39

37

40

42

35

49

40

45

50

43

60

48

45

--

--

Dec.

40

45

45

40

38

41

35

33

35

__

--

--

"

37

--

36

35

--

..

35

40

35

..

37

37

35

40

37

--

Jan.

36

32

--

--

36

36

--

38

38

__

35

--

35

--

34

35

--

35

36

34

35

33

--

--

._

35

38

--

--

34

--

Feb.

35

32

35

_-

36

37

34

35

35

_

35

37

37

35

37

38

_

35

36

37

_

37

35

--

--

--

Mar.

35

33

35

42

36

40

._

--

39

--

..

..

_

__

38

38

39

._

37

44

44

45

50

48

..

47

47

44

--

Apr.

48

55

._

40

42

51

60

51

47

--

49

52

53

53

53

53

65

57

58

"

..

72

72

55

55

59

58

50

47

55

--

54

May

60

53

-.

__

55

67

59

69

59

65

70

69

55

70

73

69

._

75

57

64

68

74

75

66

--

._

62

58

62

63

68

65

June

65

60

68

68

71

75

62

76

77

--

70

84

84

._

--

71

82

68

77

"

81

__

85

-_

--

73

80

70

..

83

--

--

July

..

77

79

68

68

73

_

80

. 81

--

75

74

74

76

71

77

75

75

74

70

69

75

77

75

73

70

72

78

78

80

76

75

Aug.

73

70

72

68

69

76

72

77

78

72

78

75

76

77

73

72

71

70

67

65

65

70

68

73

75

69

72

72

68

72

71

72

Sept.

71

75

75

76

70

63

70

70

65

61

58

59

62

64

63

67

70

68

73

66

64

65

65

63

65

67

60

72

73

--

67
406 MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued

SAPPA CREEK NEAR STAMFORD, NEBR. Continued

Suspended sediment, water year'October 1949 to September 1950

Day

2

2

22

24

AQ

30

Total1 .....

O

9

in

20 

21 - 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 ......

TotalOctober

Mean

charge 

(secondfeet)

33 

33 

34 

35 

33

32 

33 

32 

31 

272

225 

76 

75 

89 

77 

65 

60 

53 

55 

50 

43 

40 

38 

36 

38

37 

35 

35 

35 

34 

34

1,798

Suspended sediment

Mean 

concentration 

(ppm)

94 

94 

86 

77 

71

84 

87 

87 

87

998

784 

642 

590 

545 

477 

395 

294 

211 

144 

108

117 

133 

160 

209 

185 

145

Tons 

per 

day

8 

8 

8 

7 

6

7 

8 

8 

7 

e4,100

e 2, 300 

e355 

e300 

e300 

207 

138 

104 

84 

81 

64

46 

32 

22 

14 

11

12 

12 

15 

20 

17 

13

8,310

January

20 

20 

20 

20 

20

20 

15 

15 

15 

15

15 

15 

15 

15 

15

15 

15 

15 

15 

15

15 

15 

15 

15 

15

15 

15 

15 

15 

15 

15

495

18 

24 

51

47 

41

37 

21

--

1 

1 

3 

e3 

2

2 

2

(t)

45

November

Mean

charge 

(secondfeet)

34 

33 

32 

32 

31

31 

31 

33 

32 

32

34 

32 

32 

32 

32 

32 

31 

33 

35 

35

34 

33 

32 

34 

33

33 

32 

32 

32 

32

976

Suspended sediment

Mean 

concentration 

(ppm)

120 

91

63

72

79 

63 

52 

58 

70

60 

64 

77 

72

44 

[ 29

Tons 

per 

day

11 

8

5

6

7 

5 

4 

5 

6 

5 

5 

7 

7

4 

3

150

February

15 

15 

15 

15 

15

15 

15 

15 

15 

15 

15 

20 

20 

20 

20

25 

25 

25 

30 

30

35 

35 

40 

40 

40

40 

45 

55

710

9 

13 

38 

45 

40

} "

39 

40

1-

52 

49 

43 

56 

80

107 

119 

111 

138

347 

454

~

(t) 

(t) 

2

2 

2

1

2 

2

2

4 

3 

3

4 

6

ell 

10 

13 

12 

15 

e22 

42 

67

236

December

Mean

charge 

(secondfeet)

32 

32 

32 

32 

30

25 

25 

20 

30 

20

15 

20 

35 

30 

25

25 

30 

30 

30 

25

30 

30 

30 

25 

25

25 

25 

25 

20 

20 

20

818

Suspended sediment

Arean 

coicentration 

(pom)

21 

35 

48 

39 

66

74 

52 

85 

86 

87

79

78 

53

37 

36 

36 

26 

32

36 

33 

26 

47 

36

27 

[ 20

Tons 

per 

day

2 

3

4 

3 

5

5 

4 

4 

7 

5

3 

e5 

e!2 

6 

4

2 

3 

3 

2 

2

3 

3 

2 

3 

2

2 

1

104

M'-ch

55 

55 

65 

65 

65

65 

65 

30 

35 

30

30 

25 

30 

40 

55

45 

50 

50 

30 

35

45 

59 

56 

54 

47 

53 

49 

45 

41 

44 

39

1,452

410 

375 

285 

734 

868

980 

1,050

1,460

704 

794

648 

484 

484 

425 

493 

418 

472 

510 

450 

366 

392" 

444 

351 

257 

243 

221

61 

56 

50 

129 

152

172 

184 

e95 

138

e90

76 

118

79 

65 

65 

34 

46

51 

75 

77 

66 

46 

56 

59 

43 

28 

29 

23

2,430

e Estimated.

t Less than 1.0 ton.
KANSAS RIVER BASIN

KANSAS RIVER BASIN Continued

SAPPA CREEK NEAR STAMFORD, NEBR. Continued

Suspended sediment, water year October 1949 to September 1950 Continued

Day

20

21

OQ

25

30

31 

Total -

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 

Total

April

Mean

discharge 

(secondfeet)

36 

44 

43 

39 

36

33 

35 

35 

38 

38

35 

38 

37 

38 

36

37 

40 

44 

41 

38

38 

39 

40 

40 

38

37 

36 

35 

35 

35

1,134

Suspended sediment

Mean 

concentration 

(ppm)

217 

241 

233 

206 

197

194 

\ 146

[ 158

r 120

132 

I 142

1 no

88

-

Tons 

per 

day

21 

29 

27 

22 

19

17 

14

16 

12

14 

15

11 

8

456

July

26 

117 

53 

63 

170 

125 

191 

92 

74 

42

82 

89 

376 

980 

936 

367 

136 

91 

332 

553

284 

134 

492 

656 

316 

182 

800 

1,460 

2,080 

1,850 

553

13,702

7,220 

3,690 

3,640

6,980

5,660 

4,080 

3,620

4,740 

7,320 

6,720 

4,350

3,560 

3,050 

2,170 

6,970 

9,550 

5,680 

4,200 

7,820 

8,050 

5,600 

3,090 

9,270 

3,940 

2,880 

3,060 

4,200

--

e340 

2,280 

528 

si, 090 

63,500

2,360 

63,900 

1,400 

815 

410

61,200 

1,140 

e 10, 400 

17, 800 

11,000

3,530 

1,120 

533 

s9,290 

14,200 

4,360 

1,520 

s 13, 300 

14,200 

4,780 

1,520 

s 20, 900 

15, 500 

16, 200 

s 14, 500 

6,270

199,900

Total discharge for year (second-foot-day 

Total load for year (tons) .............

May

Mean

charge 

second - 

feet)

35 

34 

38 

35 

37

58 

49 

38 

38 

37

36 

152 

142 

89 

49

48 

49 

39 

38 

93

103 

89 

54 

43 

34

32 

39 

248 

665 

753 

271

3,465

Suspended sediment

Mean 

concentration 

(ppm)

187 

187 

132 

116 

184

3,340 

1,650 

410 

280

240

6,270 

3,420 

2,500

1,350 

860 

640 

550 

3,460

5,710 

3,320 

3,240 

1,330 

920

610

7,540 

6,060 

5,940

--

Tuns 

per 

day

18 

17 

14 

11 

18

e340 

442 

169 

42 

28

23 

e3,200 

2,400 

822 

331

175 

114 

67 

56 

si, 480

1,590 

798 

472 

154 

84

53 

e75 

e4,900 

13, 500 

12,300 

4,370

48,060

August

940 

914 

366 

347 

313

225 

787 

2,220 

2,360 

548

445 

982 

784 

823 

608

249 

202 

186 

226 

270

261 

243 

186 

157 

133 

147 

202 

177 

628 

604 

323

16,856

7,110 

5,060 

4,380 

3,530 

3,180

2,530 

8,240 

4,510 

2,940 

4,440

3,380 

5,880 

5,920 

8,130 

7,950

3,620 

2,220 

1,580

3,520 

1,960 

1,930 

1,860 

1,560 

1,300 

1,960 

2,880 

3,150 

7,840 

5,380 

5,700

--

s!8,700 

12,500 

4,330 

3,310 

2,690 

1,540 

17,500 

s 25, 300 

18,700 

6,570

4,060 

s 16, 100 

12,500 

18, 100 

s 13, 500

2,430 

1,210 

793 

el, 700 

2,560

1,380 

1,270 

934 

661 

467 

778 

1,570 

1,500 

815,000 

8,770 

4,970

221,400

June

Mean

charge 

secondfeet)

146 

148 

140 

111 

91

67 

53 

46 

40 

36

34 

33 

32 

31 

30

27 

26 

25 

24 

25

25 

23 

22 

21 

20 

18 

16 

15 

15 

17

1,357

Suspended sediment

Mean 

concentration 

(ppm)

5,260 

3,530 

3,530 

3,070 

3,030

1,770 

1,070 

810 

676 

592

519 

460 

413 

393 

388

384 

350 

309 

303 

303 

283 

270 

242 

212 

183

184 

204 

235 

237 

238

Tons 

peda:-

2,070 

1,410 

1,330 

920 

744

320 

153 

100 

73 

58

48 

41 

36 

33 

31

28 

24 

21 

20 

20 

19 

17 

14 

12 

10

9 

9 

10 

10 

11

7,600

September

324 

195 

158 

121 

101

90 

82 

75 

73 

68

65 

64 

63 

61 

59

58 

57 

56 

54 

52

50 

49 

47 

46 

48 

43 

42 

41 

41 

37

2,320

5,390 

4,000 

2,400 

2,040 

1,080

736 

599 

470 

430 

391

342 

293 

272 

270 

257 

268 

249 

243 

215 

205

179 

153 

143 

143 

148

126 

121 

112 

180 

165

4,710 

2,100 

1,020 

666 

294

179 

133 

95 

85 

72

60 

51 

46 

44 

41 

42 

38 

37 

31 

29

24 

20 

18 

18 

19 

15 

14 

12 

20 

16

9,950

s) ..................................................... 4 >, 083

........ . ........................................ 49"> 600

e Estimated.

s Computed by subdividing day.

3Z6665 O - 55 - 27
KANSAS RIVER BASIN Continued 

SAPPA CREEK NEAR STAMFORD, NEBR. Continued

Particle-size analyses of suspended sediment, water year October 1949 to S

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, si

W, in distilled water; C, chemically dispersed; M, mechanically disp

Date of collection

Oct. 29, 1949 ...........

Mar. 9, 1950 ...........

Mar. 22 ...............

May 20 .................

May 29 .................

May 29 .................

May 29 .................

May 31 .................

July 13 .................

July 14 .................

July 15 .................

July 19 .................

July 19 .................

July 24 .................

July 27 .................

July 27 .................

Aug. 2 .................

Time

9:50 a.m. 

4:00 p.m. 

1:00 p.m. 

6:00 p. m. 

5:20 p. m.

5:20 p.m. 

8:45 p.m. 

8:45 p.m. 

10:15 a.m. 

10:15 a.m.

6:00 p.m. 

2:00 p. m. 

8:15 p.m. 

8:15 p. m. 

9:00 p.m.

6:00 p.m. 

6:00 p.m. 

4:20 a.m. 

4:20 a.m. 

11:05 a.m.

1:55 p. m. 

10:20 p.m. 

10:20 p. m. 

11:40 a.m. 

11:40 a. m.

12:25 p.m. 

12:25 p.m. 

1:15 p.m. 

8:00 a. m. 

12:10 p.m.

Discharge 

(secondfeet)

36 

44 

58 

171 

762

762 

851 

851 

262 

262

139 

119 

190 

190 

200

685 

685 

941 

941 

990

921 

624 

624 

641 

641

928 

928 

990 

1,160 

1.010

Suspended sediment

Concentration 

of sample 

(ppm)

214 

1,840 

506 

7,890 

7,400

7,400 

7,430 

7.430 

6,080 

6,080

4,650 

6,720 

10,000 

10,000 

8,700

12,700 

12,700 

8,670 

8,670 

6,440

3,860 

10,300 

10, 300 

7,960 

7,960

11,200 

11,200 

8,580 

4,680 

4.760

Concentration 

of suspension 

analyzed 

(ppm)

538 

1,150 

819 

4,960 

3,480

3,620 

4,170 

4,370 

3,520 

3,510

5,860 

8,600 

8,900 

9,170 

5,310

4,490 

4,040 

4,630 

4,240 

6,020

7,420 

5,240 

5,410 

3,960 

3,810

5,090 

4,970 

5,870 

2,850 

9.250

Percent finer than 

0.002

43 

20 

27

46

9 

45 

10 

44 

8

29 

5

40 

9 

58 

9

42 

10 

49 

10

41 

10

0.004

57 

31 

40 

62 

54

23 

58 

24 

56 

18

74 

73 

42 

9 

50

56 

25 

70 

25 

62

66 

58 

22 

60 

29

54 

25 

51 

61 

56

0.008

69 

43 

56

67

60 

67 

60 

66 

65

58 

45

70 

60 

78 

66

73 

64 

75 

69

66 

54

0.016

79 

59 

66 

87 

71

68 

72 

70 

76 

78

91

73 

66 

74

83 

83 

85 

82 

83

82 

86 

84 

85 

85

77 

74 

77 

73 

77

0.031

8

7

7

8

8

8

8

8

8

9

8

9

9

9

9

9

9

9

9

9

9
KANSAS RIVER BASIN

2 222 2

B.0,0,;*;* 0,0,0,0,0, 

co co co w w ra co co ra co

! ! IS i

IS!

> i~t O CO CO i-t (

> o o o ooooo o<

- CO -rT -H NCONO^H COt

a a a a a a a a a a . a a

rt rt a rt rt rt rt ci rt a S ci a
KANSAS RIVER BASIN Continued 

PRAIRIE DOG CREEK AT NORTON, KANS.

LOCATION. At gaging station at bridge on U. S. Highway 283, half a mile south of Norton, Norton Cou

DRAINAGE AREA. 721 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1948 to September 1949.

Water temperatures: December 1948 to September 1950.

Sediment records: March 1947 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum, 79°F May 16, Aug. 4; minimum, freezing point on ma

Sediment concentrations: Maximum daily, 9,990 ppm Aug. 7; minimum daily, not determined.

Sediment loads: Maximum daily, 43,700 tons Aug. 12; minimum daily, less than 1 ton on many days d

EXTREMES, 1947-50. Water temperatures (1948-50): Maximum, 83°F June 30, July 18, 1949; minimum, fr

year.

Sediment concentrations: Maximum daily, 14,100 ppm May 19, 1949; minimum daily, not determined.

Sediment loads: Maximum daily, 95,800 tons June 22, 1947; minimum daily, less than 1 ton on many 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply P

Chemical analyses, in parts per million, July 1950

Date of collection

July 12, 1950. .......

July 25 .............

Discharge 

(secondfeet)

894 

2.940

Temperature 

(°F)

PH

7.2 

7 4

Specific 

conductance 

(micromhos at 

25" C)

280 

216

Silica 

(SiO,)

17 

18

Iron

(Fe)

0.20 

.04

Calcium 

(Ca)

46 

36

Magnesium 

(Mg)

3.0 

1.9

Sodium 

(Na)

Potassium 

(K)

8.7 

6 4

Bicarbonate 

(HCOS )

176 

132

Sulfate 

(SOJ

1.0 

1.0

Chloride 

(Cl)

0.5 

.5
KANSAS RIVER BASIN

KANSAS RIVER BASIN Continued 

PRAIRIE DOG CREEK AT NORTON, KANS. Continued

Temperature (°F) of water, water year October 1949 to September 1950 

/"Once -daily temperature measurement generally at 8:30 p. m., except January to April most measurements at about 5 p.

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

Average

Oct.

55

55

64

68

60

58

--

46

55

58

48

49

50

48

58

49

57

55

47

44

43

41

49

57

54

41

45

45

33

51

Nov.

51

..

51

52

42

49

50

47

41

48

41

50

45

"

44

45

38

39

38

41

43

--

47

42

45

43

39

43

--

44

Dec.

43

43

36

32

--

32

33

31

33

33

32

--

36

32

33

34

-

_

33

33

--

32

38

34

32

a34

Jan.

..

34

_

32

_

32

34

36

35

_

34

32

--

34

32

32

32

-

36

36

32

--

_

35

_

33

-

Feb.

33

33

35

32

--

37

32

36

37

37

34

34

32

32

33

36

38

34

33

37

_.

37

37

33

36

36

38

38

--

35

Mar.

34

34

42

34

54

53

33

33

32

33

32

37

40

49

45

32

32

33

47

49

54

49

44

53

46

43

45

45

52

42

Apr.

42

63

41

50

55

58

67

45

54

53

54

54

-_

--

48

49

52

--

71

78

60

53

53

_.

53

47

40

--

--

--

May

64

69

63

60

58

52

53

62

52

64

__

63

--

63

73

79

--

63

59

57

57

60

64

63

54

48

53

59

58

55

--

60

June

56

61

57

--

57

62

64

63

60

64

__

69

71

70

"

70

66

67

62

64

_

70

72

78

_

70

66

65

67

65

July

67

72

67

65

64

68

67

71

75

74

72

69

64

76

72

..

64

64

64

66

68

66

71

66

65

69

62

67

76

69

69

68

Aug. Sept.

67 74

66

78

79

71

71

67

70

72

71

78

73

70

72

73

70

71

67

65

62

59

61

--

68

68

64

65

65

65

64

62

68

65

68

68

71

--

--

__

56

--

59

..

62

63

73

..

--

57

56

..

60

56

67

68

--

--

a Includes estimated temperature 32°F on missing days, December 12-30.
412 MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued

PRAIRIE DOG CREEK AT NORTON, KANS. Continued

Suspended sediment, water year October 1949 to September 1950

Day

2

12

21

22

24

25

29

TotalQ

g

12

13

19

20-- 

21 - 

22 

23--- 

24 

25 

26 

27 

28 

29 

30* 

31 

TotalOctober

Mean

charge 

(secondfeet)

6.2 

7.7 

7.4 

7.4 

8.0

7.7 

6.8 

6.8 

113 

315

28 

32 

19 

12 

10

9.2 

8.3 

8.0 

8.0 

8.0

8.0 

8.0 

8.0 

8.0 

9.2

8.3 

8.3 

8.0 

8.3 

8.0 

8.3

718.9

Suspended sediment

Mean 

concentration 

(ppm)

42

26 

7,440 

9,770

2,280 

2,550 

1,200 

660 

408

218 

189 

143 

111 

90

89 

89 

85 

78 

103

82 

68 

60 

62

38

--

Tons 

per 

day

1

1 

s3,130 

s 11, 600

172 

220 

62 

21 

11

5 

4 

3 

2 

2

2 

2 

2 

2 

2 

2 

2 

1 

1 

el 

(t)

15, 260

January

9 

9 

9 

7 

6

5 

5 

5 

5 

5

5 

6 

6 

7 

7

8 

9 

9 

8

7 

7 

7 

8 

8 

7 

6 

6 

6 

6 

6

211

I""

19

40

11 

20

--

e2 

(t)

(t) 

(t)

15

November

Mean

charge 

(secondfeet)

8.3 

8.3 

8.3 

8.3 

8.3

8.6 

8.9 

8.6 

8.6 

8.6

9.2 

8.9 

8.9 

9 2 

B! 9

8.9 

8.9 

8.9 

9.5 

9.2

8.6 

8.9 

9.2 

9.2 

9.8 

8.9 

8.9 

8.9 

8.9 

8.9

265.5

Suspended sedime .!

Mean 

concentration 

(ppm)

26 

15

--

Tons 

per 

day

(t) 

(t)

14

February

6 

6 

6 

6 

6

6 

6 

7 

8 

9

9 

8 

8 

9 

11

13 

15 

14 

21 

16 

16 

15 

21 

16 

16 

20 

18 

36

348

17

30 

25 

28 

100 

59 

35 

40 

42

64 

45 

59 

60 

88 

47 

61 

110 

66 

146 

105 

412

--

(t)

(t) 

(t) 

(t) 

2 

1 

(t) 

1 

1 

2 

2 

2 

3 

4 

2 

2 

6 

3 

6 

6 

20 

e550

620

December

Mean

charge 

(secondfeet)

8.3 

8.6 

8.6 

8.3 

8.3

9.8 

8.9 

8.0 

13 

9.8

9.8 

9 

8 

8 

8

8 

8 

8 

8 

7

7 

7 

7 

7 

7

7 

8 

8 

8 

9

255. 4 J

Suspended sediment

Mean 

cincent-ation 

(ppm)

1 -

30

12 

81

--

Tons 

per 

day

(t) 

(t)

(t)

el 

2

14

March

17 

15 

14 

15 

13

12 

12 

12 

13 

13

16 

21 

20 

17 

14

11 

12 

11 

15 

13 

12 

11 

11 

11 

11 

11 

10 

9.8 

10 

10 

10

402.8

1,700 

600 

218 

278 

193

125 

155 

182 

251 

129 

51 

54 

62 

128 

110

136 

123 

78 

149 

103 

142 

90 

81 

72 

83 

89 

73 

46 

36 

30 

28

--

78 

24 

8 

11

7

4 

5 

6 

9 

4 

2 

3 

3 

6 

4

4 

4 

2 

6 

4 

5 

3 

2 

2 

2 

3 

2 

1 

1 

(t) 

(t)

217

e Estimated.

s Computed by subdividing day.

t Less than 1.0 ton.
KANSAS RIVER BASIN

KANSAS RIVER BASIN Continued

PRAIRIE DOG CREEK AT NORTON, KANS. Continued

Suspended sediment, water year October 1949 to September 1950--Continued

Day

20

23

27

29

31 

Total2

10

12

13

24 .

25--- 

26 

27 

28 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

10 

9.5 

9.8 

10 

9.8

9.8 

9.8 

9.8 

9.8 

9.8

9.8 

9.8 

9.8 

9.5 

9.2

10 

11 

10 

9.2 

8.6

8.6 

8.6 

8.6 

8.9 

8.6

8.3 

8.6 

8.3 

8.6 

8.6

280.7

Suspended sediment

Mean 

concentration 

(ppm)

27

20 

12

-.

Tons 

per 

day

'(t) 

(t)

(t)

14

July

7.4 

5.6 

97 

87 

60

9\ 

40 

19 

12 

9.5

103 

1,360 

62 

30 

17

12 

343 

34 

10 

5.1

448 

117 

101 

61 

1,960

1,980 

1,680 

229 

172 

718 

168

10,038.6

770 

430

5,090 

4,570

5,970 

3,340 

1, 590 

930 

600

8,680 

3,640 

1,810 

790

460 

9,930 

4,580 

1,360 

620

8,740 

4,960

4,960 

7,700 

7,450 

6,690 

4,350 

3,080 

7,940 

3,410

--

15 

6 

e3,100 

si, 230 

s791

s 1, 480 

s386 

82 

30 

15 

e2, 500 

s 31, 500 

s622 

147 

36 

15 

s 13, 500 

s487 

37 

8 

s 12, 300 

si, 970 

e2,300 

s 1, 070 

s 31, 500 

s 38, 800 

s 26, 400 

s2,890 

s L730 

s 16, 400 

si, 650

193, 000

Total discharge for year (second-foot-day 

Total load for year (tons). ...............

May

Mean

charge 

I second - 

feet)

8.6 

8.6 

8.9 

9.2

12

9.8 

9.5 

10 

9.5 

9.2

9.2 

9.5 

8.9 

8.9 

8.3 

8. 3 

8.3 

8.0 

8.0 

8.9

8.9 

8.9 

8.6 

8.0 

8.0 

8.6 

9.2 

9.2 

11 

10 

14

286.0

Suspended sediment

Mean 

concentration 

(ppm) } :

41 

125

56

68 

90

..

Tons 

per 

day

1 

e8

1 

3 

1

e4

2

e5 

2 

e!2

67

August

110 

88 

69 

57 

48 

77 

507 

924 

1,640 

492 

195 

1,940 

1,450 

1,180 

432

425 

349 

176 

129 

106

90 

81 

72 

68 

65 

547 

272 

238 

113 

89 

72

12,101

1,800 

1,510 

1,060 

780 

560

2,380 

9,990 

8,240 

5,020 

6,290

3,710 

8,900 

6,390 

5, 140 

5,340

5,380 

4,250 

2,500 

1,610 

i,030

773 

582 

492 

480 

940 

8,930 

5,400 

4,530 

2,860 

i,830 

1,780

--

535 

359 

197 

120 

72

s 2, 040 

s 1 5, 900 

s 20, 000 

22, 200 

8,360 

s 1, 980 

s 43, 700 

2 5, 000 

16, 400 

s 6, 440 

6,170 

s4, 230 

1,190 

561 

294

188 

127 

96 

88 

165 

s 14, 900 

3,970 

2,910 

s906 

440 

346

199, 900

June

Mean

charge 

(secondfeet)

14 

11 

9.5 

8.3

7.7

7.4 

7.1 

6.5 

6.2 

6.2

6 2 

5.6 

5.3 

5.3 

5.0

4.8 

4.5 

4.5 

4.5 

4.8

4.5 

4.5 

4.2 

4.0 

3.8 

3.5 

3.5 

12 

26 

15

215.4

Suspended sedirrent

Mean 

concentration 

(ppm)

152 

114 

140 

139 

132

125 

118 

100

82

108

1,990 

2,020 

1,870

--

Tors 

per 

dav

6 

3 

4 

3 

3

2 

2 

2

1

1

s82 

s!77 

76

379

September

57 

56 

51 

46 

42

39 

38 

36 

35 

34

32 

32 

31 

30 

30

30 

28 

28 

28 

26

25 

24 

24 

22

22 

20 

20 

20

19

947

820 

630 

500

317 

288

199 

227

195

139

128 

112 

162

126 

95 

69

e35 

e!8

14

8

7 

6 

8

771

3) ..... 26,070.3

. 410,300

e Estimated.

s Computed by subdividing day.

t Less than 1.0 ton.
KANSAS RIVER BASIN Continued 

t-RAIRIE DOG CREEK AT NORTON, KAN3 . Continued

Particle-size analyses of suspended sediment, October 1949 to 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 

W, in distilled water; C. chemically dispersed; M, mechanical

Date of collection

Oct. 10 .................

Oct. 10 .................

Oct. 12.............. ...

Feb. 27, 1950... ........

Mar. 1 .................

Time

9:55 a.m. 

9:55 a. m. 

11:30 a.m. 

12:00 m. 

12:40 p.m.

2:05 p.m. 

5:25 p.m. 

10:35 p.m. 

11:10 p.m. 

11:10 p.m.

12:15 a.m. 

12:45 a.m. 

1:15 a.m. 

1:45 a.m. 

5:05 a.m.

8:50 a.m. 

8:50 a.m. 

1:15 p.m. 

5:20 p. m. 

7:20 a.m.

9: 50 a. m. 

7:50 p.m. 

6:00 p.m. 

7:1 5 a.m. 

8:00 a.m.

11:15 a.m. 

11:15 a.m. 

9:15 p.m. 

9:00 a.m. 

1:05 p.m.

Discharge 

(secondfeet)

199 

199 

176 

188 

193

171 

70 

74 

176 

176

524 

761 

799 

799 

595

441 

441 

24 

22 

40

38 

15 

16 

34 

33

33 

33 

24 

17 

18

Suspended sed

Concentration 

of sample 

(ppm)

8,830 

8,830 

9; 060 

8,890 

9,940

9,100 

4,580 

9,060 

18, 400 

18, 400

21,600 

20, 500 

17, 400 

18, 800 

15,100

11,600 

11,600 

1,860 

2,070 

3,740

3,170 

1,200 

342 

6,850 

7,410

3,640 

3,640 

1,820 

2,800 

1,770

Concentration 

of suspension 

analyzed 

(ppm)

3,520 

3,470 

3, 560 

3,000 

3,140

2,840 

3,420 

3,070 

3,230 

3,240

3,430 

5,050 

2,480 

2,560 

4,570

1,940 

1,700 

1,270 

1,470 

2,210

2,090 

799 

298 

5,070 

5,910

3,940 

4,010 

1,320 

1,770 

1,260

Percent fine

0.002

22 

12 

24 

25 

24

26 

38 

16 

17 

12

14 

14 

13 

18 

18

55 

15 

52 

60 

30

37 

63 

12 

24 

16

45 

8 

37 

53 

44

0.004

32 

18 

34 

35 

36

38 

52 

24 

24

18

21 

22 

21 

27 

28

68 

28 

72 

82 

44

56 

80 

16 

35 

27

61 

14 

52 

73 

60

0.008

46 

36 

48 

52 

52

52 

66 

33 

36 

33

32

34 

31 

41 

40

76 

47 

92 

96 

58

78 

92 

28 

50 

38

76 

46 

66 

84 

73

0.016

60 

56 

64 

66 

67

66 

80 

43 

50 

41

42 

48 

44 

57 

54

82 

67 

95 

98 

68

87 

95 

50 

64 

56

87 

91 

76 

88 

80
July 17 .................

July 21 ..................

July 21 .................

11:05 a.m.

11:05 a. m.

7:45 a. m.

11:45 a.m.

4:30 D. m.

31

28

52

47

102

131

106

20

2,340

2,450

856

182

248

410

577

818

856

856

951

951

96

77

365

457

524

761

1.010

2,670

2,480

2,010

3,270

5,260

6,200

5,930

1,740

5,280

4,880

7,720

7,690

2,780

14, 200

18, 700

18,400

17, 300

15,200

15, 200

15,600

9,640

11,200

12, 000

10,200

11,300

10. 200

3,810

2,880

3,080

4,960

5,960

5,560

6,320

937

3,360

6,500

4,440

4,960

2,030

8,620

6,220

7,310

5,400

5,920

6,170

6,420

6,380

8,260

6,800

6,960

7,400

4.540

__

._

.__

73

_.

49

_.

40

11

415

._

45

22

77

74

63

76

67

69

72

92

68

64

52

61

63

47

45

44

48

47

21

48

15

60

35

40

45

52

52

_

._

._

_.

96

__

65__

62

45

66

49

__

65

53

94

95

91

94

93

91

96

98

87

84

85

72

78

80

76

79

76

69

78

74

92

69

69

74

78

67

74
KANSAS RIVER BASIN Continued 

PRAIRIE DOG CREEK AT NORTON, KANS . Continued

Particle-size analyses of suspended sediment, October 1949 to August 1

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection

July 22 .............. % ..

July 25 .................

July 31 .................

Aug. 6 .................

Aug. 8 .................

Time

' 3:30 a.m. 

8:45 p.m. 

9:20 a.m. 

10:45 p.m. 

10:55 p.m.

1:20 a.m. 

5:25 a.m. 

8:25 a.m. 

5:05 p.m. 

11:45 p.m.

9:05 a.m. 

7:00 p.m. 

8:45 p.m. 

7:00 a. m. 

4:30 p.m.

4:30 p.m. 

12:05 a.m. 

10:00 a.m. 

12:20 p.m. 

1:20 p.m.

9:40 p.m. 

12:05 a.m. 

2:30 a.m. 

8:00 a.m. 

1:35 p.m.

3:15a.m. 

6:35 a.m. 

6:3 5 a. m. 

2:10 p.m. 

3:20 p.m.

Discharge 

(secondfeet)

193 

60 

28 

139 

176

280 

1,420 

1,670 

2,800 

2,840

894 

3,040 

2,940 

2,870 

818

818 

350 

1,180 

1,110 

139

110 

837 

1,090 

425 

267

613 

595 

595 

970 

1,050

Suspended sedim

Concentration 

of sample 

(ppm)

6,970 

4,520 

3,060 

7,650 

13,000

16, 600 

12, 100 

6,520 

4,220 

4,440

6,740 

10, 000 

8,250 

4,120 

8,480

8,480 

7,860 

10, 200 

6,460 

3,210

10, 500 

18,300 

16,300 

8,240 

7,700

9,180 

7,740 

7,740 

9,320 

8,860

Concentration 

of suspension 

analyzed 

(ppm)

5,460 

2,920 

2,030 

4,800 

5,480

7,090 

4,950 

4,280 

8,790 

2,910

6,230 

3,520 

2,910 

3,020 

3,750

3,860 

5,060 

7,640 

7,200 

2,280

6,970 

5,330 

6,270 

6,600 

4,020

4,600 

3,480 

3,360 

6,420 

3,570

Percent finer th

0.002

48 

54

49

51 

25

52

51 

25

47

0.004

58 

60 

64 

65 

50

44 

53 

61 

71 

58

48 

59 

66 

73 

54

37 

51 

45 

57 

66

34 

45 

45 

57 

59

48 

54 

37 

48 

51

0.008

64 

74

66

64 

50

76

65

58

59

0.016

84 

69 

80 

88 

76

74 

76 

79 

91 

70

62 

78 

83 

91 

73

66 

72 

66 

77 

85

60 

69 

70 

76 

80

69 

74 

69 

67 

64

0.03
Aug. 26 .................

12:05 a.m.

10:00 a. m.

1,270

1,390

1,590

2,020

2,590

1,730

818

8,860

8,590

7,030

5,620

4,920

5,260

8,330-

11,900

6,020

5,540

3,800

3,510

6,020

7,920 --

47

52

59

73

54

50

-

55

63

72

67

88

76

67

67

72
KANSAS RIVER BASIN Continued 

WHITE ROCK CREEK NORTHWEST OF LOVEWELL, KANS.

LOCATION. At county bridge, approximately half a mile northwest of Lovewell, Jewell County, and 1.2 

DRAINAGE AREA. 358 square miles (above gaging station).

RECORDS AVAILABLE. Water temperatures: February to September 1950.

Sediment records: February to September 1950.

EXTREMES, February to September 1950. Water temperatures: Maximum, 81°F June 18, Aug. 2; minimum, f

Sediment concentrations: Maximum daily, 19,800 ppm May 20; minimum daily, not determined. 

Sediment loads: Maximum daily, 284,000 tons July 10; minimum daily, less than 1 ton on many days.

REMARKS.--Samples for chemical analysis obtained at gaging station. Discharge records for gaging sta

September 1950 given in Water-Supply Paper 1176. No appreciable inflow between sediment sampling 

heavy local runoff.

Chemical analyses, in parts per million, December 1949 to Septemb

Date of collection

Sept. 29 ...........

Discharge 

(secondfeet)

4.6 

4.0 

6.9 

4.0 

15

918 

11,500 

1,300 

1,300

Temperature 

(°F)

pH

7.5 

7.8 

7.6 

7.8 

7.5

7.8 

7.3 

7.7 

7 7

Specific 

conductance 

(micromhos at 

25° C)

1,450 

1,170 

1,090 

1,040 

707

335 

213 

336 

349

Silica 

(Si02)

16 

15 

12 

5.8 

15

14 

12 

11 

12

Iron 

(Fe)

0.02 

.01 

.04 

.02 

.02

.02 

.04 

.04 

.04

Calcium 

(Ca)

223 

127 

137 

111 

92

54 

33 

52 

58

Magnesium 

(Mg)

36 

40 

15 

30 

15

5.3 

2.3 

6.2 

6.2

Sodium 

(Na)

Potassium 

(K)

84 

62 

86 

83 

43

12 

5.8 

13 

12

Bicarbonate 

(HCO,)

528 

192 

304 

228 

190

186 

124 

167 

200

Sallate 

(S04)

362 

368 

265 

325 

171

22

6 

35 

25

Chloride 

(Cl)

32 

33 

32 

32 

28

2.0 

.0 

4.5 

2.5
KANSAS RIVER BASIN

KANSAS RIVER BASIN Continued 

WHITE ROCK CREEK NORTHWEST OF LOVEWELL, KANS.--Continued

_ Temperature (°F) of water, February to September 1950 

/Once-daily temperature measurement between 12 m. and 4 p. mj

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

Average

Oct.

48

Nov.

..

48

--

_.

..

40

..

~

Dec.

..

35

--

..

--

..

32

..

..

--

--

Jan.

..

--

_

..

--

32

._

..

32

Feb.

..

_

34

..

33

34

35

36

32

35

--

..

35

34

34

34

Mar.

_

33

35

--

42

45

39

33

35

34

35

35

34

33

36

41

41

34

35

39

38

39

41

45

48

42

41

41

41

41

47

39

Apr.

52

55

47

30

50

50

50

54

54

49

46

51

50

54

55

62

64

62

63

61

63

70

73

63

59

59

60

58

57

50

56

May

54

56

67

50

57

57

61

55

59

63

64

64

62

62

64

64

65

62

60

60

74

63

61

60

64

62

61

62

63

61

June

65

61

65

"

65

65

74

68

72

74

75

75

76

75

79

78

81

78

77

76

77

75

79

77

75

68

73

July

74

73

72

72

73

~

..

70

68

69

70

74

75

76

70

68

71

69

70

76

78

76

Aug.

77

81

73

72

"

72

73

74

76

75

77

n

75

75

74

71

71

67

6">

75

76

77

76

73

74

73

72

69

71

73

73

Sept.

77

74

69

75

69

70

70

69

70

65

64

63

62

64

63

65

65

70

69

66

65

66

66

65

65

64

55

65

62

--

67
420 MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued 

WHITE ROCK CREEK NORTHWEST OF LOVEWELL, KANS. Continued

Suspended sediment, Feoruary to September 1950

Day

q

22

90

25

27

28-- -

Total -

13

22 

23 - 

24 

25 

26 

27 

28 

29 

30 

31 

TotalJanuary

Mean

charge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(Ppm)

Tons 

per 

day

April

3.1 

3.1 

3.3 

4.0 

4.3 

3.8 

3.3 

3.1 

3.3 

3.7

3.7 

3.6 

2.8 

2.5 

2.5

2.7 

2.9 

3.4 

3.6 

3.0 

2.9 

2.8 

2.6 

3.6 

2.8 

2.5 

2.2 

2.0 

2.2 

2.3

91.6

37 

48 

49

1

119 

101

68

(t) 

(t) 

(t)

1 

(t)

(t)

21

February

Mean

discharge 

(secondfeet)

4

4 

5 

5 

5 

4

3 

3 

3 

4 

4

4 

4 

4 

4 

4

5 

5 

6

80

Suspended sediment

Mean 

concentration 

(ppm)

108 

99 

73 

77 

70 

87

98 

142 

81 

20 

24 

39 

37 

23 

18 

21

23

31 

51

Tons 

per 

day

1 

1 

(t) 

1 

(t) 

(t)

(t) 

1

(t)

12

May

2.3 

2.5 

2.4 

2.3 

46 

53 

48 

16 

21 

14

4.4 

3.4 

4.1 

4.6 

2.9

2.4 

1.1 

.3 

210 

476 

130 

156 

38 

13 

4.9 

3.0 

2.7 

2.3 

710 

1,700 

201

3,877.6

L 33

9,370 

3,560 

5,450 

3,250

2,260 

400

500 

17,400 

19, 800 

14,400 

12, 100 

6,800 

1,820 

890 

780 

360 

280 

18,400 

9,740 

5,470

(t)

si, 380 

s748 

707 

140 

e!80 

sill

5 

e4 

e!3 

e22 

e!2

e8 

e4 

(t) 

s!5,400 

s 27, 800 

5,050 

s5,310 

S787 

S72 

12

6 

3 

2 

s 43. 200 

s 43, 700 

S3, 090

147, 800

March

Mean

charge 

(secondfeet)

6 

6 

5.8 

5.5

5.5

6.4

6 

5 

4

3 

4 

5 

5.5 

6.6

6.9 

6.4 

5.5 

4.8 

4.8

5.3 

6.0 

6.4 

6.4 

5.5

5.5 

5.7 

5.7 

4.8 

3.7 

3.4

168.1

Suspended sediment

Mean 

con-;entra*ion 

(ppm)

52 

62 

99 

105 

117

107 

106 

110 

109 

130

226

110 

81 

77 

77

73 

94 

196 

82 

69

68 

40 

54 

78 

77

59 

59 

60 

52 

20 

20

Tons 

per 

day

(t) 

1

2

1 

2

1

2 

3 

1 

(t)

(t) 

(t) 

(t)

39

June

56 

33 

21 

13 

8.9 

8.0 

6.6 

6.6 

5.8 

4.8

4.1 

4.0 

3.6 

3.3 

3.1

2.9 

2.7 

2.0 

1.8 

1.8 

1.8 

1.5 

1.4 

1.3 

1.1 

.9 

.6 

.5 

.6 

.5

203.2

1.530 

890 

346 

290 

282 

302 

278 

237 

271 

261

232 

252 

244 

228 

207 

198 

228 

229 

205 

182 

183 

198 

184 

216 

202

150 

143 

156 

154 

178

s248 

79 

20 

10 

7 

6 

5 

4 

4 

3

3 

3 

2 

2 

2

2 

2 

1 

1

(t)

410

e Estimated.

s Computed by subdividing day.

t Less than 1.0 ton.
KANSAS RIVER BASIN 421

KANSAS RIVER BASIN Continued

WHITE ROCK CREEK NORTHWEST OF LOVEWELL, KANS. Continued 

Suspended sediment, February to September 1950--Cor.tiaueu

Day

TotalJuly

Mean

charge 

(secondfeet)

0.4 

.4 

1.2 

2.1 

2.5

1.2 

1.4 

19 

2,210 

16,700

3,090 

253 

201 

189 

185

181 

1,000 

1,650 

1,010 

173

130 

104 

112 

22S 

503

334 

210 

76 

47 

34 

25

28,674.2

Suspended sediment

Mean 

concentration 

(ppm)

10,400 

6,120

4,140 

5,620 

2,750 

1,130 

830

650 

8,520 

6,220 

6,920 

6,860

4,700 

1,850 

2,380 

8,820 

10,400

4,840 

5,790 

4,650 

2,140 

650 

408

--

Tons 

per 

day

(t)

e4 

elOO 

63, 900 

s 284, 000

s 33, 900 

83,800 

1,490 

577 

414

318 

s 30, 800 

27,700 

818,600 

S3, 300

1,650 

519 

s787 

86,380 

816,600

s4,430 

s3,230 

954 

272 

60 

28

503,800

August

Mean Suspended sediment

charge 

(second - 

feet)

17 

14 

11 

9.4 

8.4

8.0 

8.0 

8.4 

8.2 

7.1 

54 

1,970 

1,740 

606 

428

259 

110 

52 

31 

26

22 

18 

18 

14 

12

12

58 

338 

175 

64 

39

6,145.5

Mean 

concentration 

(ppm)

282 

242 

254 

262 

264

270 

186 

181 

249 

234

1,570 

9,300 

5,160 

11,900

6,9DO 

2,400 

716 

568

304 

299 

255 

258 

266

260 

2,040 

7,900 

5,020 

2,860 

1,080

--.

Total discharge for period Feb. 10 to Sept. 30 (second-foot-days) 

Total load for period Feb. 10 to Sept. 30 (tons) ................

Tons 

per 

day

13 

9 

8 

7 

6

6 

4 

4 

6 

4

S370 

s 42, 200 

s 24, 400 

19,500 

e8,900

e4,800 

2,060 

s406 

60 

40

18 

14 

12 

9 

9

8 

319 

s7,390 

s2,470 

494 

114

113,700

September

Mean

charge 

(secondfeet)

33 

21 

17 

14 

12

11 

10 

9.7 

9.2 

8.9

11 

10 

8.4 

8.7 

8.7

8.9 

8.9 

8.7 

10 

810

1,140 

244 

100 

62 

44

35 

31 

340 

1,010 

485

4, 530. 1

Suspended sed ment

Mean 

concentration 

(ppm)

473 

345 

292 

240 

229

179 

183 

181 

190 

159 

139 

143 

197 

214 

172

154 

140 

184

12,000

9,580 

8,370 

6,190 

2,280 

700

405 

300 

6,600 

12, 200 

12,400

T"is 

p?r 

day

42 

20 

13 

9 

7

5 

5 

5 

5 

4

4 

4 

4 

5 

4

4 

3 

4 

e22 

26, 200

s 30, 800 

5,510 

si, 720 

382 

83

38 

25 

315,600 

s 34, 300 

817,200

132,000

.................................. 43, 770. 3

.................................. 897, 800

e Estimated.

s Computed oy subdividing day.

t Less than 1.0 ton.

Periodic determinations of suspended-sediment discharge, October 1949 to January 1950

Date

Jan. 31. ...................

Instantaneous 

water discharge 

(second -feet)

2,280 

3.6 

3.4 

1.0 

4.4

4.4 

6.2 

3.3 

2.1

Suspended sediment

Mean 

concentration 

(ppm)

6,830 

126 

97 

146 

56

37 

94 

165 

133

Instantaneous 

discharge 

(tons per day)

42,000 

1.2 

.9 

.4 

.7

.4 

1.6 

1.5 

.8
KANSAS RIVER BASIN Continued 

WHITE ROCK CREEK NORTHWEST OF LOVEWELL, KANS. Conti

Particle-size analyses of suspended sediment, May to Septem

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanicall

Date of collection

M3V 1 Q

Mav 1 Q

May IQ

July 11..................

Time

7:00 a. m. 

1:00 p.m. 

4:00 p.m. 

10:00 a.m. 

8:00 a. m.

12:00 m. 

6:00 p. m. 

8:05 p. m. 

8:05 p.m. 

12:01 a. m.

5:05 a.m. 

5:05 a.m. 

12:00 m. 

8-.00 a. m. 

8:00 p.m.

7:00 a. m. 

7:30 a. m. 

11:30 a.m. 

1 :30 p. m. 

5:30 p.m.

12:50 a. m. 

12:50 a.m. 

3:40 p.m. 

8:00 a. m. 

4:05 p.m.

5:00 p. m. 

5:00 p.m. 

8:10 p.m. 

8:10 p.m. 

7:30 a.m.

Discharge 

(secondfeet)

130 

49 

130 

45 

17

98 

509 

672 

672 

882

720 

720 

328 

89 

281

181 

462 

846 

1,010 

1,260

1,500 

1,500 

1,940 

154 

2,590

3,280 

3,280 

5,020 

5,020 

6.180

Suspended sed

Concentration 

of sample 

(ppm)

11,900 

12,000 

5,600 

5,540 

3,720

29,000 

27,900 

26,000 

26,000 

30,300

20,200 

20, 200 

16,900 

12,600 

16,200

12,800 

19,000 

26,800 

31,400 

 24,400

18,800 

18, 800 

7,300 

13,800 

10,400

10,200 

10,200 

8,970 

8,970 

3.780

Concentration 

of suspension 

analyzed 

(ppm)

9,650 

9,550 

4,670 

4,680 

3,120

6,220 

5,560 

10,300 

7,080 

10,900

7,170 

10,700 

7,130 

10,200 

6,560

10, 500 

7,250 

11,200 

6,500 

10,200

6,850 

6,630 

5,800 

11,400 

6,770

6,300 

6,100 

8,530 

8,780 

3.880

Percent finer 

0.002

41 

4

46 

2

44 

1

70 

7 

53 

2 

78

0.004

54 

54 

73 

73 

87

61 

62 

59 

6 

50

60 

6 

61 

71 

62

63 

55 

45 

47 

40

55 

6 

76 

57 

75

83 

14 

71 

12 

89

0.008

73 

42

76 

58

67 

53

90 

80 

87 

74 

95

0.016

88 

87 

100 

100 

99

90 

91 

89 

89 

85

89 

81 

87 

97 

88

91 

77 

78 

74 

72

79 

79 

92 

88 

97

97 

97 

96 

94 

98

0
KANSAS RIVER BASIN 423

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KANSAS RIVER BASIN Continued 

WHITE ROCK CREEK NORTHWEST OF LOVEWELL, KANS.--Con

Particle-size analyses of suspended sediment, May to September 1

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 

W, in distilled water; C, chemically dispersed; M, mechanicall

Date of collection

Sept. 29 .................

Time

3:00 p.m. 

6:00 p.m. 

8:00 p.m. 

10:00 p.m. 

12:50 a.m.

1:15 a.m. 

1:15 a.m. 

3:45 a. m. 

6:00 a.m. 

3:30 p. m. 

10:00 p.m.

Discharge 

(secondfeet)

1,220 

900 

1,280 

1,330 

1,360

1,360 

1,360 

1,260 

1,030 

828 

1,030

Suspended sed

Concentration 

of sample 

(ppm)

8,560 

25, 800 

15,600 

14,200 

16,100

17,400 

17,400 

13,800 

11,000 

11,200 

14,000

Concentration 

of suspension 

analyzed 

(ppm)

5,S80 

8,010 

4,960 

8,840 

9,860

9,090 

9,410 

9,510 

7,020 

8,330 

10,100

Percent finer 

0.002

41

1

0.004

70 

51 

62 

56 

51

50 

4 

57 

64 

60 

51

0.008

67 

42

0.016

90 

71 

80 

80 

79

80 

75 

85 

86 

83 

76

0
KANSAS RIVER BASIN Continued 

SMOKY HILL RIVER NEAR ELLIS, KANS.

LOCATION. At gaging station at county bridge, Hi miles south of Ellis, Ellis County.

DRAINAGE AREA. 5,630 square miles.

RECORDS AVAILABLE. Sediment records: March 1947 to September 1950.

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, not determined; minimum daily, not deter

Sediment loads: Maximum daily, 207,000 tons July 31; minimum daily, not determined. 

EXTREMES, 1947-SO. Sediment concentrations: Maximum daily, not determined; minimum daily, not deter

Sediment loads: Maximum daily, 207,000 tons July 31, 1950; minimum daily, less than 1 ton on many 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply Pa

Chemical analyses, in parts per million, July to August 1950

Date of collection

Aue. 14 ...........

Discharge 

(secondfeet)

1,410 

5,040 

8.960

Temperature 

(°F)

pH

7.6 

7.8 

7 6

Specific 

conductance 

(micromhos at 

25° C)

709 

462 

315

Silica 

(Si02)

17 

17 

17

Iron 

(Fe)

0.02 

.02 

.02

Calcium 

(Ca)

113 

78 

53

Magnesium 

(Mg)

12

5.7 

1.0

Sodium 

(Na)

Potassium 

(K)

22 

11 

14

Bicarbonate 

(HCO3 )

142 

118 

145

3ulfate 

(SO,)

243 

133 

39

Chloride 

(Cl)

4.0 

.5 

2.5
426 MISSOURI RIVER BASIN 

KANSAS RIVER 3ASIN~Continued 

SMOKY HILL RIVER NEAR ELLIS, KANS.--Continued 

Suspended sediment, water year Octotier 1949 to September 1950

Day

1 

2 

3 

4 

5 

6 

7 - 

ft. _--__.

9_.--_.

10 

11 

12 

13 

14 

15 

16- -

17 

13--....

19 

20 

21 

22 __ __

93io ----»- 

24 

25 

*D------ 9ft

27 

23------

29.- _ _

30 

31 

Total1 

2 

3 

4 

5 

6 

7 

--.*-..

9--.*-*--

10 

11 

12 ------

13 

14 

15 

16-----

17 

13-----

19.----

20 

21 

22- - 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

October

Mean

discharge 

(secondfeet)

20 

41 

50 

44 

43

37 

35 

37 

53 

112

166 

166 

140 

102 

76

76 

72 

68 

66 

63 

54 

51 

48 

47 

4!)

43 

40 

40 

40 

40 

40

1,956

50 

52 

45 

40 

35

30 

25 

25 

25 

25 

25 

25 

25 

25 

25 

25 

25 

25 

20 

20

20 

25 

30 

35 

35 

34 

24 

25 

25 

25 

25

895

Suspended sediment

Mean 

concentration 

(ppm)

142 

88 

83 

83 

84

83 

74 

78

1,400

1,290 

1,010 

944 

925

293 

307 

310 

305

206 

179 

184 

188

71 

87 

72 

78 

140 

159

Tons 

per 

day

8 

10 

11 

10 

10

8 

7 

8 

e95 

423

578 

453 

3o7 

255 

e!30

60 

60 

57 

54 

e46

30 

25 

24 

24 

e!5

8 

9 

8 

8 

15 

17

2,820

January

42

41

102

565 

551

505

e24 

6 

5

e4

7 

e!2 

e!9

e26 

e34 

38 

30 

e30

e28 

34 

e38 

e40 

e36 

e32 

e!9 

e!6 

e!3 

elO 

e7

540

November

Mean

discharge 

(secondfeet)

40 

40 

40 

38 

37

37 

37 

36 

36 

35

35 

35 

35 

34 

34

34 

33 

33 

33 

33

34 

34 

34 

34 

34

33 

33 

32 

29 

32

1,044

Suspended sediment

Mean 

concentration 

(ppm)

105 

96 

86

71

125 

115 

98 

95 

88

74

68 

65 

54

-

Tuns 

per 

day

11 

10 

9

7

 12 

11

9 

8

7

6 

5 

5

228

February

25 

25 

25 

30 

35

40 

45 

50 

60 

68 

65 

68 

66 

65 

65

50 

63 

51 

45 

44

43 

33 

43 

43 

41 

38 

40 

40

1,306

34

311 

315 

308 

171 

121 

175 

168

16a 

295 

249

223 

224 

227 

227

3

e!2 

e30 

50 

58 

54 

31 

22 

31 

2b

23 

e36 

41 

e32 

30

e28 

e22 

e26 

26 

25 

23 

24 

e20

691

December

Mean

discharge 

[secondfeet)

33 

33 

33 

33 

33

33 

33 

32 

23 

27

41 

25 

22 

22 

22

24 

26 

28 

32 

35

38 

40 

43 

45 

44

40 

40 

40 

40 

44 

45

1,049

Suspended sediment

Mean 

concentration 

(ppm)

62

75 

82 

83 

82 

82

81 

80 

80 

79 

90

304 

298 

185 

270

Tons 

per 

day

5

8 

6

5 

5 

5

5 

6 

6 

7 

8

e!2 

e!5 

e20 

e24 

e26

e28 

e30 

33 

32 

22 

33

386

fc'arch

40 

35 

32 

47 

40 

37 

37 

25 

28 

36 

35 

30 

25 

20 

20

15 

15 

20 

21 

26

25 

37 

36 

35 

34 

32 

32 

29 

28 

27 

26

925

164

154

130 

141

175 

143

170 

175 

175

121 

116 

117

153

133 

80 

75 

66 

63 

47 

47 

45 

44

18 

14 

e!2

e!4

11 

9 

9

e6 

e6 

6 

7 

8

10 

e!6 

13 

8 

7 

6 

5 

4 

4 

3 

3

311
KANSAS RIVER BASIN 

KANSAS RIVER BASIN Continued 

SMOKY HILL RIVER NEAR ELLIS, KANS. Continued 

Suspended sediment, water year Octouer 1949 to September 1950 Continued

427

Day

2

o

13

IP

19

22

oo

ne

27

on

31 

Total0

12

13 -

17 

18 

on

21 

22 ----- 

23 

24 

25 

26 ----- 

27 ----- 

28 

29 

30 

31 

Total

April |

Mean

charge 

(secondfeet)

26 

24 

21 

21 

21

21 

21 

20

20 

18

18 

18 

18 

18 

21

21 

22 

22 

22 

22

22 

23 

23 

23 

22

22 

22 

21 

21 

21

635

Suspended sediment

Mean 

concentration 

(ppm)

37 

66

112

61

Tons 

per 

day

2 

4

7 

4

136

July

21 

8 

4 

31 

105

441 

300 

370 

261 

210

160 

139 

857 

712 

380 

187 

97 

65 

54 

34 

61 

555 

278 

156 

1,750 

2,900 

2,600 

2,760 

1,540 

1,340 

8,960

27 336

240 

7,460 

12,200

13,000 

3,740 

5,050 

2,980 

1,410

1,080 

1,120 

6,210 

3,320 

2,530

1,430 

728 

463 

461 

332

6,090 

1,680 

700 

5,940

4,520 

4,670 

4,550 

2,430

8,680

e750 

e26 

3 

sl,290 

3,460

s 16, 200 

3,030 

5,040 

2,100 

799

466 

s550 

s 19, 100 

6,380 

2,600

722 

191 

81 

67 

30 

e420 

s 11, 600 

si, 380 

295 

s 51, 400

s 42, 500 

s41,600 

s 36, 300 

10,100 

e 28, 000 

s 207, 000

493,500

Total discharge for year (second-foot-day 

Total load for year (tons) ..............

May

Mean

charge 

(secondfeet)

21 

21 

21 

21 

32

44 

26 

27 

438 

391

166 

102 

78 

70 

66 

51 

45 

43 

41 

43 

40 

36 

33 

28 

24

25 

26 

25 

186 

202 

115

2,487

Suspended sediment

Mean 

concentration 

(ppm)

337 

260 

5,860 

4,420

1,350 

415 

330 

433 

410

260 

220 

210 

224 

240

153 

109 

102 

111 

108

103 

98 

96

3,500

Tuns 

per 

day

e4 

e5 

e6 

e!5 

e85

e!20 

24 

19 

s 11, 100 

s 5, 160

605 

114 

69 

82 

73

36 

27 

24 

25 

28

17 

11

9 

8 

7

7 

7 

6 

e3,000 

e 2, 200 

1,090

23,980

August

2,900 

2,320 

1,850 

1,240 

900

693 

2,430 

3,920 

3,240 

1,800

1,560 

3,480 

8,020 

7,580 

4,720

2,630 

1,450 

998 

766 

660 

544 

484 

420 

365 

309 

395 

638 

2,540 

2,210 

960 

726

62, 738

3,200 

4,080 

3,050 

2,100 

1,860 

2,240 

4,480 

4,230 

3,230 

2,520 

2,270 

4,920 

5,830 

4,430 

3,680

2,610 

1,910 

1,500 

930 

742 

708 

520 

452 

421 

410

880

2,580 

1,820 

1,460

--

s 27, 200 

25,600 

s 15, 600 

7,030 

4,520

s4,280 

s 39, 800 

s 46, 600 

s 29, 300 

812,700

s9,880 

347,300 

> 130, 000 

90,700 

46,900

s 19, 100 

7,480 

4,040 

1,920 

1,300 

1,040 

680 

512 

415 

342

938 

el, 600 

e 42, 000 

s 20, 200 

4,720 

2,860

646, 600

June

Mean

charge 

( second - 

feet)

74 

53 

44 

38 

36

33 

26 

21 

20 

18

16 

14 

12 

11 

10

10 

14 

35 

56 

44 

35 

28 

25 

21 

15

11 

8 

10 

10 

24

772

Suspended sediment

Mean 

concentration 

(ppm)

1,200 

699 

571 

328 

313

244 

152 

126 

110 

134

137 

132 

100 

66 

67

75 

83

9,800 

2,000

403 

304 

296 

290 

242

139 

77 

121 

1,430

TOUP 

per 

day

240 

100 

68 

34 

30

22 

11 

7 

6 

6

6 

5 

3 

2 

2 

2 

3 

el, 200 

si, 580 

238

38 

23 

20 

16 

10

4 

2 

3 

39 

el, 300

5,020

September

494 

415 

327 

257 

237

213 

187 

163 

160 

146

143 

140 

137 

137 

134

130 

128 

127 

124 

120 

115 

115 

107 

102 

100

99 

97 

99 

99 

94

4,946

820 

570 

402 

407 

381

390 

388 

345 

325 

308

290 

273 

265

275 

320

368 

412 

421 

442 

429 

398 

335 

236 

250 

269

290 

298 

252 

269 

280

s) ....................................................

1,090 

639 

355 

282 

244

224 

196 

152 

140 

121

112 

103 

98 

102 

116

129 

142 

144 

148 

139. 

124 

104 

68 

69 

73

78 

78 

67 

72 

71

5,480

106,088 

1,180,000

e Estimated.

s Computed by subdividing day.
KANSAS RIVER BASIN Continued 

SMOKY HILL RIVER NEAR ELLIS, KANS. Continued

partille-size analyses of suspended sediment, October 1949 to Au

(Methods of analysis: E, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection

July 25 ..................

July 26 ..................

Time

9:30 a. m. 

10:45 a.m. 

1:30 p.m. 

1:00 p.m. 

1:30 p.m.

11:50 a. m. 

10:30 a.m. 

3:30 p.m. 

12:00 m. 

12:00 m.

7:00 a. m. 

1:45 p. m. 

6:30 a.m. 

4:50 p.m. 

4:50 p.m.

9:45 p. m. 

10:45 p.m. 

3:35 a.m. 

6:25 a.m. 

10:40 a. m.

11:40 a.m. 

3:45 p.m. 

3:45 p.m. 

1:25 p.m. 

5:20 p. m.

7:00 p.m. 

10:00 p.m. 

10:00 p. m. 

11:50 p.m. 

4:10 a.m.

Discharge 

(secondfeet)

97 

166 

170 

140 

105

41 

89 

808 

738 

738

472 

105 

63 

28 

28

94 

109 

97 

609 

787

930 

1,450 

1,450 

930 

700

4,100 

5,400 

5,400 

5,780 

4.180

Suspended sedim

Concentration 

of sample 

(ppm)

1,360 

1,320 

992 

944 

935

162 

11,000 

9,910 

8,060 

8,060

5,030 

4,500 

14,900 

22,000 

22,000

24,400 

27,000 

18,100 

21,200 

12,800

14,100 

10,900 

10,900 

9,140 

5,760

11,100 

11,400 

11,400 

10,600 

6.620

Concentration 

of suspension 

analyzed 

(ppm)

814 

902 

700 

503 

503

362 

7,630 

6,240 

5,340 

5,580

3,260 

6,320 

10,600 

7,010 

6,780

8,960 

8,720 

3,680 

7,840 

9,460

8,450 

9,290 

9,740 

6,530 

3,720

7,890 

9,870 

9,710 

7,900 

9.340

Percent finer th

0.002

37 

41 

44 

41 

48

16

50 

4

54 

2

56

35

1

55 

4

0.004

58 

58 

68 

68 

69

47 

55 

67 

73 

6

70 

79 

82 

81 

4

84 

74 

89 

78 

74

77 

56 

4 

80 

81

72 

75 

6 

70 

75

0.008

74 

74 

84 

86 

89

65

86 

44

94 

9

93

74 

9

87 

30

0.016

84 

82 

90 

90 

94

81 

79 

89 

91 

90

98 

96 

99 

96 

92

99 

98 

94 

94 

95

96 

82 

94 

98 

96

88 

91 

88 

91 

98

0.03
Aug. 29 ................. 9:40 a. m.

4,690

3,030

1,690

8,730

9,890

10,600

10,100

2,140

2,200

5,400

5,400

3,030

9,420

8,280

7,620

4,520

1,800

8,900

5,460

2,480

9,200

7,840

8,440

7,300

3,240

3,430

7,490

3,680

,820

,270

,820

540

4,420

2,470

7,750

3,520

1,730

6,520

6,090

4,570

5,300

2,500

2,510

5,520

4,840

2,220

3,470

2,970

2 880

2, 620

4,240

2,560

2,290

1,520

.__

52_

..

56

44

35

57

46

54

40

71

68

63

71

69

62

69

74

57

72

55

73

70

6.6

66

74

72

56

71

62

46

__

72_

..

83

79

67

58

70

78

85

80____

62

66

52

50

89

86

81

86

86

80

88

90

82

74

72

87

78

89

84

89

85

85

89

88

89

90

88

89

67

90

70

60

82

57
KANSAS RIVER BASIN Continued

SALINE RIVER NEAR RUSSELL, KANS.

gaging

DRAINAGE AREA. 1,502 square miles. 

RECORDS AVAILABLE. Chemical analyses: January 1946 to September 1949.

Water temperatures: January 1946 to September 1950.

Sediment records: May 1946 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum, 78°F Aug. 16; minimum, freezing point on many days d

Sediment concentrations: Maximum daily, 11,000 ppm July 5; minimum daily, not determined.

Sediment loads: Maximum daily, 103,000 tons July 26; minimum daily, less than 1 ton on some days in 

EXTREMES, 1946-50. Dissolved solids (1946-49): Maximum, 4,430 ppm Oct. 1-31, 1947; minimum, 208 ppm 

Hardness (1946-49): Maximum 978 ppm Sept. 18-30, 1947; minimum, 135 ppm June 30, 1948.

Specific conductance (1946-49): Maximum daily, 11,000 micromhos June 19, 1946; minimum daily, 203 m

Water temperatures: Maximum, 80°F July 8, 1947; minimum, freezing point on many days during winter 

Sediment concentrations: Maximum daily, not determined; minimum daily, not determined.

Sediment loads: Maximum daily, 112,000 tons Oct. 9, 1946; minimum daily, less than 1 ton on many da

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply Pap

Chemical analyses, in parts per million, May to July 1950

Date of collection

Discharge 

(secondfeet)

3,450 

14,300

Temperature 

(°F)

PH

7.5 

7.7

Specific 

conductance 

(micromhos at 

25° C)

775 

308

Silica 

(SiO,)

14 

18

Iron 

(Fe)

0.02 

.02

Calcium 

(Ca)

102

52

Magnesium 

(Mg)

12 

3.0

Sodium 

(Na)

Potassium 

(K)

52 

14

Bicarbonate 

(HCO.)

192

175

Sulfate 

(SO,)

160 

19

Chloride 

(Cl)

64 

5.0
KANSAS RIVER BASIN 431

KANSAS RIVER BASIN Continued 

SALINE RIVER NEAR RUSSELL, KANS. Continued

_ Temperature (°F) of water, January to September 1946 

/Once -dally temperature measurement generally between 6a.m. and 9 a. mj

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

Average

Oct. Nov. Dec. Jan.

..

..

..

~

..

38

34

34

35

32

32

33

32

31

31

Feb.

32

32

34

34

45

32

32

32

32

32

32

36

32

32

32

34

32

40

39

42

40

40

38

38

41

42

34

39

36

Mar.

44

38

45

42

36

36

39

33

38

35

38

48

50

52

50

50

42

41

42

44

48

47

45

48

52

48

48

52

56

52

56

45

Apr.

60

55

54

45

55

52

56

55

48

49

45

49

50

50

52

48

52

55

60

56

57

60

60

55

59

58

59

60

55

58

--

54

Hay

60

50

50

51

58

55

50

55

57

56

42

48

54

58

56

60

57

58

57

60

54

59

65

58

54

55

68

55

59

61

61

52

June

60

54

55

62

61

68

65

67

"

69

68

64

70

71

71

70

65

56

64

71

70

71

66

69

70

70

67

72

66

July

70

72

68

71

72

67

70

78

72

73

71

70

70

71

72

77

75

70

72

68

68

71

70

70

70

_

70

77

74

73

73

72

Aug.

70

71

72

72

70

68

72

73

70

67

68

67

66

69

71

73

74

72

71

--

..

-.

"

_

--

~

Sept.

..

66

67

68

65

65

.64

62

65

61

58

60

68

50

53

60

66

67

67

52

54

--

Temperature (°F) of water, water year October 1949 to September 1950 

/Once-daily temperature measurement generally between 7 a. m. and 9 a. mj

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

Average

Oct.

55

55

--

..

--

..

~

..

49

45

47

49

49

49

39

--

Nov.

44

47

40

44

44

44

45

46

46

47

44

41

44

42

41

38

36

40

39

33

33

37

42

39

43

41

43

41

36

--

41

Dec.

39

34

38

39

--

36

35

32

32

35

43

32

32

--

..

--

--

..

--

..

--

--

36

Jan.

32

Feb.

..

--

33

34

34

34

33

35

39

34

34

34

35

34

34

37

36

33

33

36

39

36

38

40

--

35

Mar.

34

33

34

35

41

45

40

33

33

36

33

33

35

38

39

34

34

33

34

35

42

40

45

55

40

35

36

39

44

38

Apr.

43

46

46

38

38

38

44

48

54

50

41

43

38

45

44

51

52

51

43

42

48

58

60

60

42

45

46

45

--

46

May

39

51

58

50

49

52

53

65

53

54

54

57

60

61

64

64

65

65

63

62

57

64

65

67

60

52

53

60

62

61

63

58

June

58

64

58

66

63

64

65

66

65

64

66

70

72

74

71

71

69

70

68

72

71

72

75

74

69

66

65

70

68

68

July

72

70

71

71

67

67

68

72

75

75

74

73

69

64

68

68

68

69

68

68

70

70

72

70

69

71

72

74

75

70

Aug.

..

71

71

71

74

73

70

74

74

75

75

75

74

77

76

78

76

71

71

65

64

68

69

71

70

69

68

69

70

--

72

Sept.

..

--

--

73

61

65

59

57

58

61

68

66

60

67

60

71

65

60

60

63

60

63

62

62

64

66

--

63
MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued

SALINE RIVER NEAR RUSSELL, KANS. Continued

Suspended sediment, water year October 1949 to September 1950

Day

90

24

27

31-. 

Total2

12

91

22 

23 

24 

25 

20 

27 

28 

29 

30 

31 

Total -

October

Mean

charge 

(secondfeet)

19 

22 

20 

17 

15

15 

15 

15 

74 

1,060

113

84 

62 

88 

84

70 

59 

52 

49 

46 

44 

43 

43 

42 

40 

39 

38 

36 

36 

36 

35

2,411

Suspended sediment

Mean 

concentration 

(ppm)

312 

278 

197 

144 

122

160 

162 

121

6,440 

1,670 

745 

490 

1,030 

1,270

640 

195 

146 

95

67 

42 

46 

57 

66 

70 

61 

37 

26 

19 

28

--

Tons 

per 

day

16 

16 

11

7 

5

6 

7 

5 

e600 

s 21, 500

s575 

169 

82 

245 

288

121 

31 

20 

12 

ell

8 

5 

5 

6 

7 

7 

6 

4 

2 

2 

3

23, 780

January

25 

25 

25 

25 

25

25 

25 

20 

20 

20 

20 

20 

20 

20 

20 

20 

20 

20 

20 

20

20 

20 

20 

15 

15

15 

15 

15 

15 

15 

15

6L5

33 

74 

30

15

76

44 

42 

41

--

2 

5 

2

el 

(t) 

e2

4 

e3

2 

2 

2

el

57

November

Mean

charge 

(secondfeet)

33 

32 

32 

32 

32

32 

32 

31 

31 

31

31 

29 

29 

29 

29

29 

29 

29 

30 

29 

30 

30 

30 

29 

30

31 

30 

30 

29 

28

908

Suspended sediment

Mean 

concentration 

(ppm)

30

45 

51 

40

23 

15

Tons 

per 

day

3

4 

4 

3

2 

1

63

February

15 

15 

15 

15 

20

20 

25 

35 

101 

46 

46 

63 

66 

88 

51 

48 

49 

51 

46 

44 

43 

55 

40 

38 

37 

37 

38 

36

1,181

30 

30 

29 

28

I 29

} «

101 

68 

202 

309

101

116 

84 

104 

76 

48

43 

122 

38 

34

I 33

--

1 

1 

1

1

2

4 

e380 

12 

8 

34 

55 

e48 

14

15 

11 

14 

9 

6 

5 

s22 

4 

4

3

669

December

Mean

charge 

(secondfeet)

27 

27 

27 

27

27

27 

27 

27 

26 

30

29 

26 

24 

22 

22

22 

22 

22 

28 

25

22 

20 

20 

20 

20 

20 

20 

20 

25 

25 

25

751

Suspended sediment

Mean 

concentration 

(ppm)

16

75 

46 

40

35 

67

41

31 

16

25 

64

Tons 

per 

day

1

6 

3 

3

3

5

3 

2 

 (t)

} 'I

64

Miirch

36 

35 

35 

35 

32

32 

33 

32 

35 

32 

30 

45 

48 

38 

40

36 

34 

34 

49 

33 

32 

29 

28 

28 

28

28 

26 

25 

24 

24 

23

1,019

36 

66

72 

133 

82 

130

1 69

50 

64 

54

} S5

1 -

j 157

} »

4 

6

8 

12 

7 

10 

e!4 

e!2

7

5 

8 

5

5 

7 

11 

2

213

e Estimated.

s Computed by subdividing day.

t Less than 1.0 ton.
KANSAS RIVER BASIN 433

KANSAS RIVER BASIN -Continued

SALINE RIVER NEAR RUSSELL, KANS.--Continued

Suspended sediment, water year October 1949 to September 1950--Continued

Day

2

g

1 S

99

90

24

9ft

28

30

31 

Total -

13

i ft

21

22

23 

24 

25 

26 

27 

28 

29- 

30- 

31 

Total

April

Mean

charge 

(secondfeet)

22 

23 

22 

22 

21

20 

22 

20 

20 

19

19 

19 

19 

18 

18

19 

22 

23 

22 

22 

21 

19 

18 

18 

18

18 

18 

18 

20 

19

599

Suspended sediment

Mean 

concentration 

(ppm)

33 

32 

22

--

Tons 

per 

day

2 

2 

1

50

July

87 

58 

46 

222 

729

217 

108 

102 

142 

101

85 

76 

74 

61 

124 

1,460 

339 

174 

1,320 

1,260

365 

244 

155 

122 

378

4,370 

6,950 

1,570 

728 

.532 

628

22,827

1,220 

428 

212 

7,180 

11,000

6,200 

2,280 

1,080 

1,880 

1,060

510 

415 

435 

222

8,410 

4,570 

4,020 

7,960 

7,100 

5,060 

1,980 

940 

440

7,520 

5,080 

3,740 

2,150 

1,270 

1,620

--

286 

67 

26 

S6.990 

322,300

S3, 770 

665 

s307 

721 

289 

117 

85 

87 

36 

el, 100 

335,400 

34,630 

S2, 120 

s 29, 800 

24,200 

S5, 170 

si, 340 

393 

145 

e6,500 

s 103, 000 

5102,600 

s 16, 400 

4,230 

1,820 

82,760

377,400

Total discharge for year (second-foot-day 

Total load for year (tons) ...............

May

Mean

charge 

(secondfeet)

20 

20 

19 

20 

35

61 

29 

32 

1,740 

1,830

317 

178 

164 

144 

123 

98 

84 

75 

66 

63 

79 

143 

74 

58 

51

51

49 

47 

103 

56 

48

5,877

Suspended sediment

Mean 

concentration 

(ppm)

21 

22

48 

89

4,990 

865 

465 

9,650 

6,920

4,220 

1,500

1,680 

980

395 

277 

213 

138 

100

3,240 

750 

382 

213

235 

200 

174 

3,630 

285 

146

--

Tons 

Per 

day

1 

1 

2

5 

c240

3962 

68 

40 

s 63, 200 

s 36, 000

S3, 900 

721 

e750 

653 

325

104 

63 

43 

21 

17 

e60 

si, 310 

150 

60 

29

32 

26 

22 

si, 300 

43 

19

110,200

August

516 

411 

325 

293 

260

244 

328 

1,550 

5,160 

2,750

1,510 

1,390 

4,100 

4,200 

2,980 

2,350 

1,230 

782 

612 

500

440 

396 

356 

328 

382

376 

980 

926 

1,260 

1,340 

677

38,952

1,800 

1,060 

770 

650 

400

370 

1,780 

4,980 

5,220 

3,720

4,050 

3,840 

5,090 

3,680 

2,870 

3,680 

3,520 

2,700 

1,560 

1,020

730 

580 

530 

455

2,810 

3,940

--

2,510 

1,180 

676 

514 

281

244 

si, 760 

s 24, 800 

s 73, 000 

827,100

16, 500 

s 14, 900 

s 55, 100 

S42.100 

23,100 

23,300 

11,700 

5,700 

2,580 

1,380

867 

620 

509 

403 

e2,400

S2.990 

e52,000 

s 10, 300 

e 20, 000 

e 16, 000 

e3,500

438,000

June

Mean

charge 

(secondfeet)

45 

44 

43 

42 

39

38 

36 

33 

37 

27

28 

26 

25 

25 

24

22 

22 

22 

24 

27

28 

21 

19 

18 

18

17 

15 

62 

337 

190

1,354

Suspended sediment

Mean 

concentration 

(ppm)

118 

120 

128 

139 

143

134 

137 

157

168

158 

157 

157 

171 

195

163 

160 

153 

152 

150

280 

227 

209 

197 

183

178 

214

7,890 

4,110

--

Tons 

per 

day

14 

14 

15 

16 

15

14 

13 

14 

e22 

12

12 

11 

10 

12 

13 

10 

10 

9 

10 

11

s23 

13 

11 

10 

9

8 

9 

6900 

s 11, 600 

s2,380

15,220

September

485 

426 

345 

295 

257

230 

210 

200 

195 

192

178 

166 

159 

152 

155 

155 

148 

144 

136 

130

123 

118 

113 

108 

106

110 

108 

107 

104 

102

5,457

259 

276 

193

188 

202 

148 

139 

128 

141 

153 

172 

226 

256

228 

185 

150 

172 

160

174 

168 

200 

156 

224

el, 300 

el, 000 

e550 

e360 

e250

e!80 

e!50 

140 

145 

100

90 

90 

64 

57 

54 

59 

61 

67 

83 

90 

76 

59 

46 

50 

46

52 

49 

58 

44 

62

5,400

s) 77 951

....................................................... 971, 100

> Estimated, 

s Computed by subdividing day.
KANSAS RIVER BASIN Continued 

SALINE RIVER NEAR RUSSELL, KANS. Continued

Particle-size analyses of suspended sediment, Octooer 1949 to Aug

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection

Ma.v 10

.Tu,y4. ...... ............

Julv 16 ..................

Time

7:25 a. m. 

10:55 a.m. 

1 :00 p. m. 

9:15 p.m. 

7:35 a.m.

7:40 a. m. 

7:05 a. m. 

11:15 a.m. 

2:00 p.m. 

3:15 p.m.

7:00 p.m. 

7:00 p.m. 

2:20 a. m. 

4:05 a. m. 

4:05 a. m.

6:55 a.m. 

1:20 p.m. 

6:40 p. m. 

11 :00 a.m. 

5:35 p.m.

1:55 p.m. 

8:55 p. m. 

9:05 p.m. 

7:50 p. m. 

S;00 n. m.

3:00 p.m. 

5:20 p.m. 

5:30 a.m. 

3:00 p.m. 

7:15 a.m.

Discharge 

(secondfeet)

2,130 

1,070 

764 

252 

130

104 

75 

1,540 

2,830 

3,250

3,430 

3,430 

4,000 

4,100 

4,100

3,250 

856 

244 

142 

102

677 

470 

455 

127 

3',8

328 

270 

564 

104 

1.860

Suspended sedime

Concentration 

of sample 

(ppm)

7,080 

6,800 

6,680 

3,720 

2,020

816 

6,400 

31,700 

14,800 

12,700

11,200 

11,200 

8,730 

7,470 

7,470

6,430 

6,500 

2,790 

8,110 

4,100

19,600 

9,350 

9,280 

2,420 

15,400

15,400 

15,400 

9,810 

1,910 

15.800

Concentration 

of suspension 

analyzed 

(ppm)

3,990 

3,740 

4,600 

2,690 

1,340

487 

2,970 

5,220 

5,820 

6,220

8,590 

8,370 

4,980 

7,140 

6,910

3,980 

5,010 

6,010 

10, 500 

4,820

12,400 

6,800 

9,160 

5,150 

6,970

7,200 

8,850 

5,670 

1,640 

10.400

Percent finer th

0.002

30 

38 

36 

41 

52

58

52 

5

1

56

62

0.004

48 

57 

54 

61 

71

76 

78 

55 

65 

82

75 

3 

74 

72 

9

73 

68 

77 

70 

82

64 

72 

71 

83

4

72 

74 

70 

78 

60

0.008

64 

72 

72 

78 

83

88

82 

61

11 

87

88

0.016

76 

81 

78 

85 

88

92 

94 

77 

82 

84

92 

94 

89 

87 

91

89 

85 

96 

93 

94

90 

92 

93 

97 

96

95 

95 

90 

92 

80

0.03
>>>» >»» »>» »> 

*cc cccce c c c c c Seccc ccc 

< TO TO TO OQ TO TO TO TO TO TO TO TO TO TO TO TO TO <« TO TO TO 

C* Cn CJl O CO CO 1 i- tt^ 1 i- O CO CO Cn O Co iU 

»o«op«Op p»o»op»o cpp'Op 'O'Op'O'O 

33333 33333 33333 33333 333 33333333 

o o co tn 

ooooo to o o o o o o to o 

( CT> CT> O CT> i-* ) 

OOOOO O > OOOO O ) C O O O O O i 

( tU o> rfb CO -q I 

i 01 en en i 

! Wh- O I 

( O tn O * 

ooooo o*«oo ooooo ooo*:o ooooo ooooo 

32332 2ggSS 22222 2 g 2 2! 2 22222 22222 

SVSKVH Nisva SEt-
KANSAS RIVER BASIN Continued 

SALINE RIVER NEAR WILSON, KANS.

LOCATION. At gaging station at highway bridge, three quarters of a mile upstream from Hell Creek and 

DRAINAGE AREA.--1,900 square miles.

RECORDS AVAILABLE. Chemical analyses: February 1948 to September 1950.

Water temperatures: March 1948 to September 1950. 

EXTREMES, 1949-50. Dissolved solids: Maximum, 4,430 ppm Oct. 1-8; minimum, 250 ppm July 27-28, Aug. 

Hardness: Maximum, 814 ppm Oct. 9; minimum, 145 ppm June 14-15.

Specific conductance: Maximum daily, 7,730 micromhos June 27; minimum daily, 332 micromhos Aug. 10

Water temperatures: Maximum, 88°F June 16; minimum, freezing point on many days during December to 

EXTREMES, 1948-50. Dissolved solids: Maximum, 4,520 ppm Oct. 1-31, 1948; minimum, 250 ppm July 27-2

Hardness: Maximum, 814 ppm Oct. 9, 1949; minimum, 145 ppm June 14-15, 1950.

Specific conductance: Maximum daily, 8,210 micromhos May 22, 24, 26, 28, 29, 1948; minimum daily, 

Water temperatures: Maximum, 91"F Aug. 16, 1949; minimum, freezing point on many days during winte

REMARKS. Daily samples for chemical analysis composited by discharge. Records of specific conductan

Lincoln, Nebr. Records of discharge for water year October 1949 to September 1950 given in Water-

Chemical analyses, in parts per million, water year October 1949 to Sep

Date of collection

Oct. 9 .............

Oct. 10 ............

Oct. 11-17 .........

Nov. 29-Dec. 31.... 

Jan. 1-31, 1950..... 

Feb. 1-28 ..........

Mar. 30-Apr. 30. ....

May 6-9 ............

May 10, 11:10 a.m. . 

May 10, 11:25 a.m. .

May 31-June 13 ..... 

a Mean for day .

Mean 

discharge 

(secondfeet)

25.6 

116 

2,320 

200 

55,4

39 1 

33^8 

20.6 

48.0 

38.7

27.8 

27.5 

194 

133 

4,790

4,790 

424 

102 

365 

61.0

Temperature 

(°F)

PH

7.8 

7.8 

7.4 

7.6 

8.0

7.7 

7.8 

8.1 

8.0 

8.0

8.0 

7.7 

7.4 

7.8 

7.4

7.3 

7.7 

7.8 

7.7 

7.6

Specific 

conductance 

(micromhos at 

25° C)

7,250 

6,940 

1,190 

1,040 

3,750

4,630 

4,790 

5,210 

4,000 

4,790

5,840 

6,190 

1,350 

3,280 

645

551 

889 

2,330 

976 

4,01')

Silica 

(Si02)

18 

20 

22 

17 

18

18 

16 

17 

18

14

10 

8.0 

29 

17 

18

15 

23 

25 

21 

20

Iron 

(Fe)

0.08 

.04 

.10 

.10 

.02

.02 

.01 

.01 

.01 

.03

.01 

.02 

.06 

.04 

.04

.02 

.04 

.04 

. 10 

.04

Calcium 

(Ca)

175 

181 

108 

90 

134

166 

164 

190 

170 

168

157 

160 

97 

152 

84

76 

90 

131 

74 

155

Magnesium 

(Mg)

88 

88 

6.8 

8.0 

46

66 

68 

73 

59 

68

83 

77 

9.4 

40 

6.0

7.7 

7.0 

32 

8.2 

45

Sodium 

(Na)

1,340 

1,310 

163 

116 

629

835 

884 

900 

670 

845

1,090 

1,120 

175 

506 

38

33 

84 

320 

112 

656

Potassium 

(K)

15 

14 

14 

12 

13

12 

11 

11 

9.8 

11

14 

18 

11 

15 

9.9

10 

11 

12 

8.0 

14

Bicarbonate 

(HCO,)

288 

298 

288 

174 

272

316 

320 

400 

356 

337

302 

284 

220 

230 

240

204 

210 

248 

172 

252

Sulfate 

(S04)

684 

640 

112 

134 

386

505 

551 

565 

430 

503

608 

580 

123 

405 

69

75 

99 

258 

95 

440

Chloride 

(Cl)

1,970 

1,900 

208 

173 

870

1,210 

1,300 

1,330 

975 

1,230

1,590 

1,620 

245 

7(1(1 

50

41 

124 

500 

161 

958
July 3-4 ...........

July 5-6 ...........

July 27-28 .........

July 29-31 .........

Sept. 1-30. .........

Weighted average . .

76.5

6,125

1,045

235

302

7.9

7.9

7.6

--

2, 160

1,050

01

t)A

26

25

21

04

.04

0.07

Q|

Q|

115

77

45

134

C

7

C

4

C

27

13

00

23

1 ft

me

293

131

139

0

8

0

9 3

9 8

12

9.6

234

150

248

195

240

111

23 1

1QC

QO

1 Q

420

184
MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued 

SALINE RIVER NEAR WILSON, KANS. Continued

Temperature (°F) of water, water year October 1949 to September 1950 

/Slice-daily temperature measurement usually between 8 a. m. and 12 m_7

Day

1

2

3

4

5

6

7

8

g

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Average

Oct.

56

71

75

75

61

--

58

61

59

61

61

61

62

62

--

62

57

56

57

56

56

56

51

50

61

48

--

--

Nov.

54

50

54

45

45

47

46

48

51

47

49

51

44

52

51

44

37

52

42

39

--

38

44

44

53

46

54

45

38

--

47

Dec.

46

39

39

37

34

43

36

32

32

41

45

31

32

32

34

34

35

32

34

32

31

32

32

32

31

31

34

32

33

37

38

35

Jan.

39

45

32

31

32

32

33

33

33

32

32

34

32

32

32

32

34

32

32

32

32

34

35

36

32

32

32

..

32

32

32

33

Feb.

32

32

33

34

34

33

33

35

32

34

39

39

32

33

32

44

49

43

38

42

38

32

35

49

--

..

_

_

._

--

37

Mar.

33

45

45

50

51

40

32

46

37

32

31

32

34

37

41

47

34

36

33

35

41

49

60

54

57

._

__

__

--

40

Apr.

60

55

45

43

57

55

49

57

58

--

63

59

60

60

58

53

59

54

45

66

..

80

69

56

53

62

57

49

46

44

--

56

May

58

56

74

75

53

75

59

75

72

57

55

65

68

66

72

68

73

71

65

65

69

--

73

75

61

51

63

63

62

65

66

66

June

62

70

69

68

79

80

77

82

77

81

79

82

87

65

78

88

86

80

81

84

80

82

87

._

76

79

77

74

._

81

78

July

75

73

65

67

..

72

84

79

77

83

77

76

76

83

66

67

71

71

72

74

76

77

74

75

67

70

74

78

77

69

Aug.

76

77

79

76

75

76

75

76

78

76

77

78

79

77

79

76

--

67

..

71

--

77

73

70

78

72

72

72

75

Sept.

73

78

73

76

73

70

66

70

._

--

61

60

70

72

79

76

..

68

69

65

67

68

64

--

--

--

Periodic determinations of suspended-sediment discharge, water year October 1949 to September 1950

Date

Oct. 25, 1949 .............

Oct. 31...................

Jan. 4, 1950 ..............

Instantaneous 

water discharge 

(second-feet)

50 

46 

24 

37 

25

Suspended sediment

Mean 

concentration 

(ppm)

58 

5 

6 

32 

37

Instantaneous 

discharge 

(tons per day)

7.8 

.6 

.4 

3.2 

2.5
KANSAS RIVER BASIN Continued 

SALINE RIVER AT TESCOTT, KANS.

LOCATION. At gaging station at highway bridge, half a mile south of Tescott, Ottawa County, and half 

DRAINAGE AREA. 2,820 square miles.

RECORDS AVAILABLE. Chemical analyses: December 1949 to September 1950.

Water temperatures: April to September 1950. 

EXTREMES, 1949-50. Dissolved solids: Maximum, 2,680 ppm Feb. 1; minimum, 190 ppm July 20.

Hardness: Maximum, 722 ppm Feb. 1; minimum, 120 ppm July 20,

Specific conductance: Maximum daily, 4,940 micromhos May 6; minimum daily, 283 micromhos July 20.

Water temperatures: Maximum, 79°F June 14, 16, 24, 25; minimum, not determined.

REMARKS. Daily samples for chemical analysis composited by discharge. Records of specific conductan

regional office at Lincoln, Nebr. Records of discharge for water year October 1949 to September 1

1176.

Chemical analyses, in parts per million, December 1949 to Septemb

Date of collection

May 5, 10:15 p.m. ..

May 11, 12:50 p.m... 

May 11, 1:40 p. m. ... 

May 11, 2:00 p. m. . . .

May 11, 3:00 p.m. 

May 11, 4:40 p. m. ... 

May 11, 8:00 p.m.... 

May 11, 12:00 p.m... 

May 12, 8:10 a. m. ...

May 12, 11:30 p.m. ..

Julv7-16 ...........

Mean 

discharge 

(secondfeet)

55 

30 

56 

52 

45

a44 

386

a 550 

a 810 

a 848

a 905 

al,110 

al,650 

al,890 

a2,220

a 2, 690 

2,010 

233 

959 

195

142 

173 

429

Temperature 

(°F)

PH

8.1 

7.5 

8.1 

8.2 

8.1

7.6 

8.1 

7.3 

7.2 

7.2

7.2 

7.2 

7.2 

7.3 

7.4

7.5 

7.9 

8.0 

7.5 

7.5

8.1 

7.6 

7.6.

Specific 

conductance 

(micromhos at 

25° C)

4,060 

4,310 

3,140 

4,120 

4,380

4,780 

1,550 

2,450 

3,490 

3,820

3,870 

1,990 

1,990 

882 

597

397 

418 

1,310 

677 

862

1,590 

1,500 

997

Silica 

(SiOa)

18 

18 

18 

12 

14

18 

20

14

12 

17 

20 

20 

22

20 

19 

21

Iron 

(Fe)

0.03 

.01 

.02 

.01 

.01

.05 

.02

.06 

.02 

.02 

.04 

.04

.04 

.04 

.04

Calcium 

(Ca)

112 

192 

132 

138 

133

80 

170

47 

50 

88 

63 

69

87 

81 

81

Magnesium 

(Mg)

57 

59 

43 

54 

58

20 

37

5.5 

6.0 

17 

13 

7.8

14 

13 

11

Sodium

(Na)

700 

718 

502 

724 

760

8 

257 

3 

5 

6

605 

2 

2 

1

25 

28 

159 

55 

99

215 

206 

107

Potassium 

(K)

10 

9.4 

8.8 

9.6 

10

55 

7.6 

36 

73 

23

11

70 

}0 

34 

50

7.2 

8.3 

11

7.4 

8.8

9.4 

10 

9.4

Bicarbonate 

(HCO,)

206 

414 

296 

287 

297

312 

201 

199 

231 

247

246 

206 

244 

192 

146

136 

150 

196 

246 

185

216 

197 

223

Sulfate 

(S04)

445 

455 

340 

435 

448

485 

163 

278 

373 

408

450 

310 

218 

95 

88

43

50 

170 

35 

78

138 

150 

89

Chloride 

(Cl)

1,000 

1,020 

700 

1,010 

1,080

1,210 

363 

540 

825 

923

911 

367 

403 

130 

62

30 

28 

221 

72 

130

312 

282 

147

a Discharge at time of sampling.
KANSAS RIVER BASIN Continued

SALINE RIVER AT TESCOTT, KANS.--Continued

Chemical analyses, In parts per million, December 1949 to September 1950 

Date of collection

July 23-2R ..........

Aug. 20-Sept. 3 .....

Mean 

discharge 

(secondfeet)

1,530 

2,900

3,920 

4,520 

4,370 

3,120 

745

2,610 

3,540 

4,100 

1,475 

575

1,000 

2,517 

3,620

4,100 

3,860 

1,057 

277

Temperature 

(°F)

pH

7.4 

7.4

7.5 

7.6 

7.7 

7.5 

7.6

7.5 

7.6 

7.6 

7.7 

7.7

7.6

7.7 

7.5

7.5 

7.5 

7.7 

7.7

Specific 

conductance 

(micromhos at 

25' C)

403 

301

339 

283 

325 

476 

645

557 

341 

355 

745 

1,290

2,070 

479 

328

361 

327 

889 

2,110

Silica 

(SiOa)

13 

15

15 

17 

20 

17 

19

19 

19 

19 

20 

26

28 

20 

29

17 

27 

20 

27

Iron

(Fe)

0.10 

.10

.40 

.04 

.04 

.10 

.04

.10 

.10 

.04 

.04 

.04

.04 

.04 

.04

.04 

.04 

.04 

.04

Calcium 

(Ca)

56 

49

52 

42 

45 

61 

67

70 

52 

50 

70 

96

122 

56 

51

61 

55 

77 

123

Magnesium 

(Mg)

6.3 

5.4

4.6 

3.5 

4.1 

6.2

7.5

7.7 

5.1 

4.9 

7.2 

14

25 

6.0 

4.6

4.8 

4.5 

11 

26

Sodium 

(Na)

29 

16

17 

12 

18 

30 

49

45 

17 

14 

65 

150

285 

29 

14

12 

13 

88 

285

Potassium 

(K)

7.4 

7.6

7.6 

7.0 

7.2 

8.5 

8.5

10 

9.5 

9.0 

9.9 

11

12

9.4 

8.4

8.8 

9.2 

10 

11

Bicarbonate 

(HCO,)

212 

198

182 

146 

158 

180 

194

232 

176 

158 

189 

232

286 

178 

168

184 

188 

200 

283

Sulfate 

(SOJ

11 

9.0

28 

20 

25 

48 

64

55 

28 

30 

78 

140

225 

43 

31

35 

24 

98 

230

Chloride 

(Cl)

37 

11

15 

8.0 

18 

40 

66

52 

15 

14 

89 

207

397 

36 

14

15 

10 

118 

405

F

r

(
KANSAS RIVER BASIN 441

KANSAS RIVER BASIN Continued 

SALINE RIVER AT TESCOTT, KANS. Continued 

Temperature (°F) of water, April to September 1950

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

Average

Oct. Nov. Dec.

33

Jan. Feb. Mar. Apr.

48

48

48

45

48

54

58

60

50

51

48

49

50

54

56

54

50

54

68

66

54

53

55

--

--

May

..

60

60

57

60

59

62

61

62

60

61

65

68

69

63

69

68

69

68

70

70

66

62

62

66

63

64

64

June

62

66

62

64

--

..

65

71

75

77

79

78

79

75

76

72

76

76

78

78

79

79

77

74

75

72

72

73

July

75

76

76

75

74

73

75

73

75

75

76

76

71

72

75

..

71

72

71

69

71

71

73

75

75

74

74

75

73

73

75

74

Aug.

75

75

74

76

75

75

77

75

76

75

77

78

77

77

78

77

77

75

75

71

70

72

72

73

77

74

72

73

72

70

69

74

Sept.

71

70

72

71

70

69

69

69

70

66

65

64

64

65

66

66

68

71

73

70

67

65

66

68

65

65

65

67

69

--

68
KANSAS RIVER BASIN Continued 

PARADISE CREEK NEAR PARADISE, KANS.

LOCATION. At gaging station at bridge on U. S. Highway 281, 4i miles southeast of Paradise, Russell C

DRAINAGE AREA. 212 square miles.

RECORDS AVAILABLE. Chemical analyses: March to October 1947, March to November 1948, February to Sep

Water temperatures: June 1949 to September 1950.

Sediment records: March 1947 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum, 86°F June 14, 23, 24; minimum, not determined.

Sediment concentrations: Maximum daily, not determined; minimum daily, no flow Oct. 1-8.

Sediment loads: Maximum daily, 60,100 tons May 9; minimum daily, 0 tons Oct. 1-8. 

EXTREMES, 1947-50. Water temperatures (June 1949 to September 1950): Maximum, 86°F June 14, 23, 24, 

Sediment concentrations: Maximum observed, 22,500 ppm July 4, 1950; minimum daily, no flow on some 

Sediment loads: Maximum daily, 60,100 tons May 9, 1950; minimum daily, 0 tons on some days each yea

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply Pap

Chemical analyses, in parts per million, May 1950

Date of collection

Mav9. 1950...........

Discharge 

(secondfeet)

3.590

PH

7.3

Specific 

conductance 

(micromhos at 

25° C )

312

Silica 

(SiO,)

16

Iron 

(Fe)

0.02

Calcium 

(Ca)

56

Magnesium 

(Mg)

3.0

Sodium 

(Na)

Potassium 

(K)

8.5

Carbonate 

(CO,)

0

Bicarbonate 

(HCO,)

188

Sulfate 

(S04)

13

Chloride 

(Cl)

1.0
KANSAS RIVER BASIN 443

KANSAS RIVER BASIN -Continued 

PARADISE CREEK NEAR PARADISE, KANS. Continued

1950

./Once-daily temperature measurement generally between 8 a.m. and 12 mj

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

Average

Oct.

..

..

54

58

52

53

_

64

62

53

..

50

56

55

56

..

Nov.

..

44

..

53

..

_

46

..

--

48

..

--

--

Dec.

46

48

--

34

42

..

33

_

38

..

~

..

..

35

Jan.

..

_

34

"

..

36

_

37

~

_

34

..

--

~

Feb.

..

--

36

-

..

37

_

40

34

44

47

37

35

42

36

41

42

41

40

--

Mar.

44

36

38

42

60

64

36

38

44

38

37

49

38

44

51

54

36

36

35

41

45

42

44

58

54

56

56

54

45

Apr.

49

54

46

60

48

48

57

70

60

60

57

38

52

62

56

67

54

49

52

56

67

75

60

49

71

55

47 

45

65

56

May

62

62

71

66

52

59

57

65

55

56

62

59

63

66

65

66

67

68

6665"

65

67

70

71

63

54

58

61 

67

66

62

63

June

61

63

61

72

61

70

68

75

74

73

78

81

81

86

85

76

79

70

71 '

84

83

86

86

"

_

68 

74

73

--

74

July

..

64

61

70

71

74

81

78

76

77

69

69

78

66

69

70

65

72

71

71

75

74

73

67

70 

71

79

77

72

Aug.

75

73

73

79

72

78

73

78

83

76

78

77

74

69

76

70

72

68

62

65

65

72

78

72

71

69

70

68

69

62

65

72

Stpt.

68

69

71

70

68

65

62

71

67

74

68

60

60

61

65

68

78

71

65

67

62

61

68

64

65

68 

65

68

67
MISSOURI RIVER BASIN 

KANSAS RIVER BASIN--Continued

PARADISE CREEK NEAR PARADISE, KANS. Continued 

Suspended sediment, water year October 1949 to September 1950

Day

2

g

1 3

1 ft

19

21

22

23

25

Total2

g

12

 jo

1 ft

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

charge

(secondfeet)

0 

0 

0 

0 

0

0 

0 

0 

154 

448

11 

2.2 

.8 

.8 

.4

.3 

.2 

.2

619.2

Suspended sediment

Mean 

concentration 

(ppm)

3,150 

700 

252 

179 

147

111 

77

62

--

Tons 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

e7,200 

e 16, 000

s!88 

4 

(t) 

(t) 

(t)

(t) 

(t)

(t)

23,400

January

0.5 

.5 

.3 

.3 

.4

.5 

.6 

.7 

.8 

.6

.4 

.5 

.4 

.3 

.2 

.1 

.1 

. 1 

.3 

.3

.3 

.2 

.1 

.1 

.1

.2 

.3 

.5 

.4 

.4 

. 5

11.0

77 

28 

13 

19

. 

2

November

Mean

charge 

(secondfeet)

0.1 

. 1 

.1 

.1 

.1

.1 

.2 

.2 

.3 

.3

.3 

.1 

.1 

.2 

.2

.1 

.2 

.2 

.2 

.2

.1 

.2 

.3 

.2 

.2

.2 

.3 

.2 

.2 

.2

5.5

Suspended sediment

Mean 

concentration 

(ppm)

108 

100

57 

62

Tons 

per 

day

(t)

1

February

0.5 

.4 

.4 

.4 

.5

.5 

.4 

.4 

.6 

.5

.3 

.6 

.8 

.6 

.2 

.2 

.1 

. 1 

.1 

.1 

.1 

.1 

. 1 

.1 

.1

.1 

.1 

.1

8.5

38

16

6 

53

7

(t) 

(t)

(t)

D'cemoer

Mean

charge 

(secondfeet)

0.2 

.2 

.2 

.2 

.2

.1 

.1 

.2 

.3 

.2

.1 

.2 

.3 

.3 

.3

.5 

.2 

.1 

.3 

.3

.2 

.2 

.2 

.2 

.2

.2 

.1 

.1 

.1 

.1 

.1

6.2

Suspended sediment

Mean 

concentration 

(ppm)

35 

10

128 

141

22 

14

29

--

Tons 

per 

day

(t)

(t)

March

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1

. 1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

3.1

39 (t)

(t)

e Estimated.

s Computed by subdividing day.

t Less than 1.0 ton.
KANSAS RIVER BASIN 

KANSAS RIVER BASIN Continued

PARADISE CREEK NEAR PARADISE, KANS. Continued 

Suspended sediment, water year October 1949 to September 1950--Continued

445

Day

12

13

18

20

22

24

27

31 ------

Total2

0

9 ......

12 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 ----- 

25 

26 

27 

28 

29 

30 

31 -----

Total

April

Mean

charge 

(secondfeet)

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

' .1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

3.0

Suspended sediment

Mean 

concentration 

(ppm)

68

Tons 

per 

day

W

(t)

July

7.3 

6.0 

5.6 

299 

489

175 

16 

7.0 

4.5 

3.2

2.5 

2.0 

1.8 

2.2 

8b 

1,710 

185 

103 

520 

121

73 

26 

8.3 

5.3 

28

210 

730 

226 

44 

17 

11

5,123.7

10, 600 

11,800

4,720 

1,780 

525 

300 

150

90 

775 

90 

55

10, 100 

9,800 

5,620 

11,400 

6,800

3,680 

1,370 

365 

310 

927

8,670 

4,780 

1,180 

530 

515

--

e5 

e2 

e2 

312,100 

s 15, 400

s3,270 

s93 

10 

4 

1

(t) 

(t) 

(t) 

W 

e 3, 500

342,400 

s4,830 

si, 600 

s 17, 000 

s2,370

725 

96 

8 

4 

slOl 

e7,600 

817,400 

s3,850 

140 

24 

15

132,600

Total discharge for year (second-foot-day 

Total load for year (tons) ...............

May

Mean

charge 

(secondfeet)

0.1 

.1 

.1 

.1 

16

23

3.8 

1.8 

2,450 

1,010

77 

29 

60 

34 

19

16 

10 

8 

6.7 

6.7

9 

6.3 

5.3 

5.3 

5.1

4.7 

4.5 

4.7 

5.3 

4.9 

5.3

3,831.8

Suspended sediment

Mean 

concentration 

(ppm)

} -

2,720

430 

330 

9,720 

6,580

4,500

4,700 

1,300 

446

272 

212 

183 

171

208

} "

| 685 

"X 898 

j 171

} -

Tons 

per 

day

(t)

s!74

e400 

4 

2 

s 60, 100 

s 18, 500 

si, 060 

e220 

S769 

s!35 

23

12 

6 

4 

3 

elO

5 

e6

10 

11 

2 

2

81,490

August

6.3 

2.8 

3.8 

6.7 

4.2

4.7 

154 

22 

8.6 

8.6

12 

11 

226 

951 

39 

11 

6.7 

7.0 

5.6 

4.7

4.2 

3.8 

3.6 

3.0 

9.3 

8.6 

154 

302 

96 

149 

29

2,258.2

150 

105 

294

260 

110

655 

135 

95

95 

130

5,460 

1,220 

328 

195

85 

3,470

2 

(t) 

3 

el6 

3

1 

e2,400 

39 

3 

2

3 

4 

e3,600 

s 18, 600 

S151 

10 

4 

el2

1

e34 

e26 

e4,600 

e7,100 

el, 900 

e2,400 

S344

41,260

June

Mean

charge 

(secondfeet)

4 

4.2 

4 

3.6 

3.6

3.5 

3.3 

3.2 

2.7 

2.5

2.5 

2.4 

2.4 

2.2 

2.1

2.1 

2.0 

1.6 

1.6 

1.5

1.5 

1.4 

1.1 

1.0 

1.0

1.0 

1.0 

159 

12 

7.3

241.3

Suspended sediuent

Mean 

concentration 

(ppm)

180 

143 

190 

168 

155

141 

155 

142 

142

118

1,470 

556

--

Tens 

por

drv

2 

2 

2

2 

2

1

1 

1 

1

(t)

e6,700 

s74 

11

e.soo

September

8.0 

5.3 

4.2 

3.6 

3.2

2.8 

2.8 

3.0 

2.5 

2.4 

2 2 

2.2 

2.1 

2.1 

2 2

2.2 

2.1 

2.0 

1.9 

1.8 

1.6 

1.4 

1.3 

1.3 

1.3

1.3 

1.4 

1.4 

1.4 

1.3

72.3

335 

142 

80 

54

32 

32

27

--

s) ...................................................

..................................................... 2

7 

2

(t) (t)

(t) 

(t)

(t)

15

12,183.8 

85,600

e Estimated.

s Computed by subdividing day.

t Less than 1.0 ton.
KANSAS RIVER BASIN Continued 

PARADISE CREEK NEAR PARADISE, KANS. Continue

Particle-size analyses of suspended sediment, October 1949 to Au

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection

Mau Q

Mav 11 .................

Time

8:50 a.m. 

8:50 a.m. 

11:30 a.m. 

11:30 a.m. 

8:45 p.m.

8:45 p.m. 

10:20 a.m. 

9:40 a. m. 

9:10 a.m. 

6:35 a.m.

9:30 a.m. 

10:30 a.m. 

11:15 a.m. 

12:20 p. m. 

1:10 p.m.

2:15 p.m. 

3:30 p. m. 

6:15 p.m. 

7:50 p. m. 

7:50 p. m.

9:00 p.m. 

9:40 p. m. 

2:50 a.m. 

5:20 a.m. 

7:10 a. m.

12:15 p.m. 

1:40 p.m. 

8:00 p.m. 

6:45 a. m. 

5:35 D. m.

Discharge 

(secondfeet)

790 

790 

382 

382 

62

62 

11 

2.7 

40 

2,440

3,510 

3,770 

3,860 

3,770 

3,590

3,430 

3,190 

2,750 

2,560 

2,560

2,440 

2,330 

1,820 

1,580 

1,440

1,060 

970 

254 

90 

53

Suspended sedim

Concentration 

of sample 

(ppm)

13,400 

13,400 

11,200 

11,200 

7,520

7,520 

2,880 

710 

3,200 

11,900

9,770 

10,100 

9,290 

8,360 

7,810

7,330 

7,360 

6,870 

7,170 

7,170

7,140 

7,160 

6,630 

6,560 

6,670

6,590 

6,470 

9,030 

5,860 

2.880

Concentration 

of suspension 

analyzed 

(ppm)

4,120 

4,300 

3,860 

3,610 

2,400

2,300 

1,690 

416 

2,110 

8,090

6,620 

7,650 

5,600 

6,630 

4,980

3,880 

5,360 

7,120 

3,460 

3,570

4,850 

5,340 

6,120 

6,280 

3,770

4,420 

8,340 

7,130 

3,610 

6.690

Percent finer th

0.002

32

12 

30 

4 

39

17 

62 

87 

51

58 

10

0.004

50 

18 

46 

14 

57

32

80 

94 

60 

63

65 

61 

69 

70 

69

73 

74 

73 

72 

26

75 

77 

77 

76 

73

68 

64 

62 

74 

78

0.008

64 

53 

55 

40 

74

70 

90 

98 

72

79 

69

0.016

78 

81 

66 

62 

84

85 

96 

99 

80 

82

80 

77 

86 

96 

84

86 

87 

87 

84 

80

88 

90 

91 

90 

85

81 

78 

83 

92 

93

0.0
Aue. 30 ................. 9:30 a. m.

254

591

572

317

34

205

17,600

11,800

7,440

4,880

5.380

6,440

1,420

6,670

5,380

9,590 8 1 <in

2,130

4.080

_

57

90

52

52

55

52

75

66

_

79

94

78

77

80

79

77

92

62

85
KANSAS RIVER BASIN Continued 

WOLF CREEK NEAR SYLVAN GROVE, KANS.

LOCATION. At gaging station, at bridge 3 miles upstream from mouth, and 4| miles west of Sylvan Grove

DRAINAGE AREA. 261 square miles.

RECORDS AVAILABLE. Water temperatures: February to September 1949.

Sediment records: April 1947 to September 1950. 

EXTREMES, 1949-50. Sediment concentrations: Maximum daily, not determined; minimum daily, not determ

Sediment loads: Maximum daily, 43,200 tons July 16; minimum daily, less than 1 ton on many days. 

EXTREMES, 1947-50. Sediment concentrations: Maximum daily, 16,600 ppm Apr. 10, 1947; minimum daily, 

Sediment loads: Maximum daily, 43,200 tons July 16, 1950; minimum daily, less than 1 ton on many da

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply Pap

Chemical analyses, in parts per million, May to July 1950

Date of collection

May 5, 1950 ......

July 16 ..........

Discharge 

(secondfeet)

465 

282 

3,880

Temperature 

(°F)

PH

7.6 

8.1 

8.0

Specific 

conductance 

(micromhos at 

25° C )

719 

450 

290

Silica 

(Si02 )

15

Iron 

(Fe)

0.10

Calcium 

(Ca)

45

Magnesium 

(Mg)

1.8

Sodium 

(Na)

Potassium 

(K)

83 

39 

14

Bicarbonate 

(HCO3 )

170 

178 

148

3ulfate 

(SO,)

73 

53 

17

Chloride 

(Cl)

95 

21

5.0
KANSAS RIVER BASIN

KANSAS RIVER BASIN Continued 

WOLF CREEK NEAR SYLVAN GROVE, KANS. Continued

Suspended sediment, water year October 1949 to September 1950

Day

2

2

12

13

16 

17 

1ft

19

OA

23

24

25

9ft

29

31- 

TotalU

13

18

9A

21 

22 

23 

24 

25 

26 

27- 

28- 

29- 

30- 

31 

Total

October

Mean

charge 

(secondfeet)

0.5 

.5 

.6 

.7 

.6 

.7 

.6 

.6 

19 

1,070

216 

4.9 

3.0 

2.4 

2.2

2.1 

2.1 

2.0 

2 3 

2.2

2.1 

2.0 

2.0 

2.0 

2.0

2.0 

2.0 

2.1 

2.1 

2.2 

2.2

1,355.7

Suspended sediment

Mean 

concentration 

(ppm)

199

8,200

6,320 

692 

135 

122

93 

102

100 

100

142

155 

151 

147

Tons 

per 

day

(t)

e200 

23, 700

s4, 440 

9 

1

(t)

28,400

January

3.0 

2.5 

2.5 

2.5 

2.5

3.0 

3.0 

3.6 

3.9 

4.0

4.1 

4.1 

3.9 

3.9 

3 9

3.6 

3.6 

3.5 

3.3 

3.5 

3.6 

3.6 

3.6 

3.6 

3.5

3.2 

3.1 

3.1 

3.4 

3.4 

3.3

105.3

8 

6

23

--

(t)

6

November

Mean

charge 

Isecondfeet)

2.2 

2.2 

2.2 

2.2 

2.4

2.4 

2.4 

2.4 

2.5 

2.5

2.6 

2.6 

2.5 

2.5 

2.4 

2.4 

2.4 

2.5 

2.5 

2.6

2.6 

2.6 

2.7 

2.8 

2.9

2.9 

3.0 

3.0 

3.0 

3.1

77.0

Suspended sediment

Mean 

concentration 

(ppm)

79 

39

75

62 

56

27 

16 

9

28 

23

10

51 

52 

54

Tons 

per 

day

(t)

12

February

3.2 

3.2 

3.2 

3.3 

3.4

3.6 

3.9 

4.0 

3.9 

3.9

3.9 

4.2 

4.2 

4.0 

4.0

3.9 

3.8 

3.8 

3.8 

3.8 

3.7 

3.8 

3.7 

3.8 

3.7

3.6 

3.6 

3.6

104.5

25

38 

18 

7

10

20 

12

11

7

~

(t)

6

December

Mean

charge 

(secondfeet)

3.2 

3.2 

3.2 

3.2 

3.3

3.4 

3.4 

3.5 

3.6 

3.6

3.8 

3.9 

3.7 

3.7 

3.6 

3.8 

3.9 

4.1 

4.3 

4.0

a. 5

3.5 

3.5 

3.0 

3.0

2.5 

2.5 

2.5 

2.5 

3.0 

3.0

104.9

Suspended sediment

Mean 

concentration 

(ppm)

54

41 

37 

31 

29

27 

24 

22

20

37

23 

36

25

18 

17

17 

12 

10

-

Tons 

peda;-

(t)

6

March

3.8 

3.6 

3.5 

3.4 

3.4

3.4 

3.4 

3.4 

3 2 

3.2

3.2 

3.0 

3.0 

3.0 

3.2

3.3 

3.4 

3.4 

3 3 

3.3 

3.3 

3.4 

3.3 

3.3 

3.3

3.2 

3.0 

3.0 

2.9 

2 8 

2.7

100.6

6 

10

8

12 

19

20

"

(t)

3

e Estimated.

s Computed by subdividing day.

t Less than 1.0 ton.
450 MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued

WOLF CREEK NEAR SYLVAN GROVE, KANS. Continued 

Suspended sediment, water year October 1949 to September 1950 Continue!

Day

2

g

12

1ft

19

23

28

31 

Total4

12

10

19

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

April

Mean

charge 

(secondfeet)

2.7 

2.7 

2.7 

2.7 

2.9

2.9 

2.7 

2.6 

2.7 

2.7

2.6 

2.6 

2.6 

2.5 

2.5

2.5 

2.7 

2.8 

2.9 

2.7

2.6 

2.6 

2.5 

2.4 

2.4

2.4 

2.3 

2.2 

2.2 

2.2

77.5

Suspended sediment

Mean 

concentration 

(ppm)

14 

18

45 

46

46 

46

46

44 

44

--

Tons 

per 

day

(t)

9

July

3.3 

3.5 

3.2 

3.2

17

22 

6.6 

4.5 

7.9 

22 

6.6 

5.2 

9.2 

4.7 

3.8

1,810 

2,220 

545 

536 

450

28 

27 

9.9 

7.4 

7.3 

9.8 

797 

801 

150 

9.2 

158

7,688.3

130 

89 

755

3,260

2,300 

750

550

7,200 

5,420 

5,190 

6,500 

4,150 

1,770 

2,500

420 

575 

6,690 

2,980 

2,720

5,580

--

e2 

e2 

1

(t) 

s44

s273 

e4 

e2 

e60 

s!62 

13 

e8 

14 

e2 

el

843,200 

32, 500 

s7,410 

B 10, 600 

s5, 130 

8154 

8 209 

e26 

el3 

8 

s!9 

s 12, 900 

s 6, 590 

1,100 

e40 

2,380

122,900

Total discharge for year (second-foot-day 

Total load for year (tons) ..............

May

Mean

charge 

(second - 

feet)

2.4 

2.4 

2.4 

2.5

307

26 

9.0 

6.3 

76 

65

11

6.1 

7.0 

9.2 

6.8 

5.3 

4.8 

7.7 

6.6 

7.3

35 

15 

6.3 

4.8 

4.3

4.3 

4.5 

4.4 

327 

51 

8.5

1,035.9

Suspended sediment

Mean 

concentration 

(ppm)

44 

44 

44 

45

1,970 

230

6,680 

3,380

857 

585 

383

341 

209 

200

330 

390

400

395

259 

175 

175 

6,080 

1,870 

253

Tons 

per 

day

(t) 

(t) 

(t) 

(t) 

69,600

s!93 

6 

e3 

s3,960 

sl,110

s20 

10 

7 

e8 

6 

3 

3 

e7 

6 

8

e340 

s20 

e4 

e4 

5

3 

2 

2 

s 5, 090 

s366 

6

20, 790

August

68 

16 

10 

8.7 

8.0

7.7 

301 

282 

20 

11 

9.0 

8.5 

269 

732 

592

432 

169 

14 

11 

9.2

8.8 

8.2 

8.2 

7.7 

33 

35 

72 

119 

266 

44 

20

3,600.0

2,310

1,340

3,440 

540

510

330 

270

3,300

--

s493 

e55 

e27 

e!9 

e!3

e9 

ell, 000 

e5, 400 

879 

elO 

e5 

e5 

e9,400 

s7, 520 

el, 100

630 

e240 

e20 

15 

e!2

elO 

e8 

7 

6 

e320 

elSO 

e660 

e3,000 

66,600 

s425 

e30

47,300

June

Mean

charge 

(secondfeet)

6.3 

5.7 

5.2 

4.9 

4.8

4.6 

4.5 

4.3 

23 

5.5

4.2 

3.9 

3.8 

3.7 

5.5

3.6 

3.5 

3.3 

3.1 

3.1

3.1 

3.0 

3.0 

2.9 

2.8

2.6 

6.6 

29 

5.9 

3.6

169.0

Suspended sediment

Mean 

concentration 

(ppm)

111 

105 

106

122 

125 

125 

3,120 

320

200 

200 

680 

103

124

112

3,000 

500

Tons 

per 

day

2 

2 

1 

el 

el

2 

2 

1 

s251 

5

e2 

e2 

2 

2 

10

(t)

e80 

s306 

8 

e3

693

September

13

10 

8.7 

8.0 

7.6

7.3 

6.8 

6.7 

6.6 

6.6 

6.3 

6.1 

5.9 

6.0 

6.0

6.0 

6.0 

5.9 

5.7 

5.5

5.3 

5.1 

5.0 

5.0 

4.8

4.9 

4.9 

5.0 

5.3 

5.1

135

75 

44

191.1

s) ....................................................

e6 

e4 

e4 

e3 

e3

e3 

e3

e2

el 

el 

el 

1 

el

(t)

57

14,609.8 

220,200

e Estimated.

s Computed by subdividing day.

t Less than 1.0 ton.
KANSAS RIVER BASIN--Continued 

WOLF CHEEK NEAR SYLVAN GROVE, KANS. Continued

Particle-size analyses of suspended sediment, October 1949 to J

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection

May 9

June 9 ...............

Time

8:45 a.m. 

8:45 a.m. 

11:45 a.m. 

2:45 p.m. 

4:50 p.m.

5:40 p.m. 

11:00 p.m. 

11:00 p.m. 

8:20 a.m. 

1:35 p.m.

5:00 p.m. 

8:25 a.m. 

1:30 p.m. 

7:30 p.m. 

5:35 p.m.

7:05 p.m. 

8:30 p.m. 

10:50 p.m. 

10:50 p.m. 

7:40 a.m.

8:40 a.m. 

10:35 a.m. 

7:50 p.m. 

8:05 a.m. 

1:00 o.m.

Discharge 

(secondfeet)

1,470 

1,470 

1,380 

1,230 

1,150

1,140 

760 

760 

264 

88

35 

5.0 

465 

119 

140

238 

291 

291 

291 

65

346 

520 

443 

44 

42

Suspended sedime

Concentration 

of sample 

(ppm)

8,490 

8,490 

8,150 

7,310 

6,740

7,440 

8,860 

8,860 

6,620 

7,650

6,260 

810 

6,750 

7,500 

22, 600

29,900 

23,200 

14,800 

14,800 

5,710

14,400 

6,880 

4,080 

3,740 

5.800

Concentration 

of suspension 

analyzed 

(ppm)

3,080 

2,860 

3,300 

2,690 

3,410

5,440 

3,650 

3,560 

3,320 

5,330

4,760 

578 

8,390 

6,200 

8,050

10, 400 

9,340 

7,460 

7,690 

3,770

5,710 

5,790 

3,920 

2,090 

5.870

Percent finer th

0.002

27 

15 

33 

34 

43

34 

44 

12 

46 

44

42 

60

60 

3

35

0.004

45 

30 

48 

53 

59

58 

63 

32 

72 

62

67 

88 

64 

64 

36

55 

62 

69 

6 

78

48 

59 

74 

47 

68

0.008

64 

36 

66 

70 

79

78 

83 

82 

89 

73

83 

94

82 

50

59

0.016

80 

72 

82 

88 

90

92 

94 

94 

96 

85

92 

98 

92 

94 

68

83 

89 

91 

90 

93

76 

86 

96 

70 

96

0.03
KANSAS RIVER BASIN Continued 

WOLF CREEK NEAR SYLVAN GROVE, KANS. Continu

Particle-size analyses of suspended sediment, October 1949 to July 19

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection

July 16 ...............

Time

3:00 p.m. 

5:05 p.m. 

7:05 p.m. 

9:30 p.m. 

9:30 p.m.

7:35 p.m. 

8:00 p.m. 

11:35 a.m. 

8:35 a.m. 

10:30 a.m.

Discharge 

( second - 

feet)

2,910 

3,400 

3,760 

3,880 

3,880

1,280 

1,120 

970 

222 

238

Suspended sedime

Concentration 

of sample 

(ppm)

10, 600 

8,820 

7,700 

6,790 

6,790

6,720 

6,140 

7,940 

8,820 

4,900

Concentration 

of suspension 

analyzed 

(ppm)

7,140 

5,630 

4,680 

4,440 

4,300

4,180 

3,800 

4,980 

6,480 

3,360

Percent finer th

0.002

74 

11

0.004

74 

78 

80 

84 

28

71 

81 

68 

54 

85

0.008

93 

87

0.016

96 

97 

99 

100 

98

96 

96 

91 

78 

86

0.03
KANSAS RIVER BASIN Continued 

SOUTH FORK SOLOMON RIVER AT ALTON, KANS.

LOCATION. At gaging station at bridge 1.1 miles south of Missouri Pacific Railroad in Alton, Osborne 

DRAINAGE AREA. 1,720 square miles.

RECORDS AVAILABLE. Water temperatures: June 1949 to September 1950.

Sediment records: June 1946 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum, 89°F July 9; minimum, freezing point on many days du

Sediment concentrations: Maximum daily, 9,900 ppm July 14; minimum daily, not determined.

Sediment loads: Maximum daily, 139,300 tons July 26; minimum daily, less than 1 ton on many days.

EXTREMES, 1946-50. Water temperatures (June 1949 to September 1950): Maximum, 89°F July 9, 1950; min

1949 to March 1950.

Sediment concentrations: Maximum daily, not determined; minimum daily, not determined.

Sediment loads: Maximum daily, 168,000 tons Oct. 8, 1946; minimum daily, less than 1 ton on many da

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply Pap

Chemical analyses, in parts per million, July 1950

Date of collection

July 26 .............

Discharge 

(secondfeet)

2,140 

9,300

PH

7 6 

7.8

Specific 

conductance 

(micromhos at 

25" C )

388 

324

Silica 

(SiO,)

16 

20

Iron

(Fe)

0.02 

.02

Calcium 

(Ca)

59 

55

Magnesium 

(Mg)

4.3 

3.2

Sodium 

(Na)

Potassium 

(K)

16 

11

Carbonate 

(COS )

Bicarbonate 

(SCO,)

185 

173

Sulfate 

(S04 )

37 

25

Chloride

(Cl)

5.0 

3.0
454 MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued 

SOUTH FORK SOLOMON RIVER AT ALTON, KANS. Continued

Temperature (°F) of water, water year October 1949 to September 1950 

/Once-daily temperature measurement mostly between 5 p.m. and 8 p.m^7

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

Average

Oct.

69

--

--

--

--

68

65

-.

61

--

_.

--

..

49

51

45

--

--

Nov.

52

44

49

51

~

42

53

--

54

56

50

52

51

49

46

40

43

47

49

45

39

42

44

47

48

..

50

49

47

44

--

47

Dec.

42

43

39

39

39

36

33

33

42

32

33

33

31

34

37

--

--

--

_

"

_

35

35

40

33

Jan.

36

32

--

32

34

34

35

35

33

33

32

33

35

32

33

31

_

"

_

--

~

Feb.

34

"

36

34

34

35

34

35

34

33

33

38

38

38

32

48

34

43

48

42

43

52

42

--

38

Mar.

43

35

44

52

58

58

35

37

46

33

32

32

34

36

37

52

49

33

33

34

46

51

55

57

63

56

49

48

51

57

57

45

Apr.

58

60

43

48

49

54

65

61

70

52

56

51

53

57

53

53

65

51

66

77

75

55

60

60

55

46

58

57

May

61

64

62

68

61

63

64

69

71

67

71

65

73

73

79

75

70

62

72

84

69

57

54

61

68

63

66

67

June

65

64

67

63

75

74

75

81

75

..

80

80

81

78

77

77

75

~

77

79

82

84

78

75

78

80

81

76

July

83

77

IS

67

65

76

76

89

79

75

76

69

76

~

79

75

74

75

74

75

78

78

75

74

68

73

77

78

79

79

76

Aug.

76

74

78

78

78

74

76

79

80

76

78

79

77

80

78

75

65

72

77

73

73

66

70

69

72

69

74

Sept.

74

80

76

76

68

68

70

72

72

70

63

62

64

65

67

70

70

74

75

76

64

65

67

64

68

61

73

~

69
KANSAS RIVER BASIN

KANSAS RIVER BASIN Continued

SOUTH FORK SOLOMON RIVER AT ALTON, KANS . Continued 

Suspended sediment, water year October 1949 to September 1950

Day

2

1C

22

23

9A

27

og

11

Total0

Q

11

20 

21 

22 ...... 

23 

24 

25 

26 

27 

28 

29 

30 ----- 

31 -----

Total

October

Mean

charge 

(secondfeet)

6

7 

7 

6

5 

10 

30

33

37 

58 

47 

36 

30 

27 

25 

22 

20

18 

17 

17 

17 

17

17 

17 

18 

18 

18 

17

615

Suspended sediment

Mean 

concentration 

(ppm)

94

190 

330

323

2,500 

1,040 

340 

230 

190 

164 

122

83

72

~

Tons 

per 

day

2

5 

27

29 

ellO 

e460 

317 

101 

28 

17 

13 

10 

7

4 

3

1,180

January

25 

22 

20 

17 

15

13 

11 

11 

11 

11

12 

13 

14 

16 

18

20 

20 

20 

20 

20

18 

16 

15 

15 

14 

14 

13 

12 

11 

11 

11

479

190 

160 

68 

28 

29

23

20 

19

13 

10 

4 

1 

1

(t)

(t) 

(t)

51

November

Mean

charge 

(secondfeet)

17 

17 

16 

17 

18

18 

20 

22 

22 

22

23 

23 

22 

21 

21 

21 

21 

21 

22 

22

21 

21 

22 

22 

23

24 

25 

25 

24 

23

636

Suspended sediment

Mean 

concentration 

(ppm)

56 

45 

34

Tons 

per 

day

3 

3 

2

80

February

11 

11 

11 

11 

12

13 

15 

20 

30 

35

35 

40 

45 

45 

50

53 

64 

75 

53 

50 

46 

43 

40 

40 

40 

40 

38 

38

1,004

31 

25 

19 

17 

14

15 

16 

9 

26

73

231 

390 

677 

218

114

350 

483 

350 

174 

130 

106 

91 

92 

76 

67 

83 

75

~

(t) 

(t) 

(t) 

(t) 

(t)

(t) 

(t) 

(t) 

2 

7

22 

42 

82 

26 

el4

16 

60 

98 

50 

23 

16 

12 

10 

10 

8 

7 

8 

8

526

December

Mean

charge 

(secondfeet)

23 

22 

23 

23 

22

22 

23 

16 

12 

13

14 

14 

15 

16 

17 

17 

18 

19 

20 

21

20 

18 

16 

15 

14

14 

14 

14 

16 

19 

22

552

Suspended sediment

Mean 

concentration 

(ppm)

25 

49 

81

98 

37

18

14 

28 

15 

10 

8 

39

Ton -3 

per 

day

2 

3 

5 

e6 

6

2

(t)

(t) 

1 

(t) 

(t) 

(t) 

2

56

March

37 

38 

35 

34 

38

41 

42 

33 

32 

36

31 

26 

28 

34 

34

37 

49 

42 

31 

29 

35 

39 

45 

41 

37 

36 

31 

28 

25 

23 

23

1,070

70 

61 

64 

58 

46

77 

98 

99 

70 

39

76 

26 

19 

24 

29

28 

100 

70 

40 

28

46 

52 

62 

56 

40 

65 

38 

20 

15 

15 

22

7 

6 

6 

5 

5

8 

11 

9 

6 

4

6 

2 

1 

2 

3

3 

13 

8 

3 

2

4 

5 

8 

6 

4 

6 

3 

2 

1 

(t) 

1

151

e Estimated.

t Less than 1.0 ton.

326665 O - 55 - 30
MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued

SOUTH FORK SOLOMON RIVER AT ALTON, KANS . Continued 

Suspended sediment, water year October 1949 to September 1950--Continued

Day

1 

2------

3__....

4 

5 

6 

7.., 

8------

Q______

10 

11 

12------

13 _.___.-

14 

15 

16 -

17 

18"---"

19 

20 

21 

22 ------

oq*O ------

24___.. _

25------

oc£O------

27 

2o------ no

OQ*y------ 

30 

31 

Total1 

2------

3__-.._

4 

5 

6 

7 

g_ _ ___

10 

11 

1 2----, _

13 

14 

15 

1A0------

17 

1ft J.O---- 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril !

Mean

discharge 

(secondfeet)

22 

22 

23 

24 

26

28 

29 

27 

26 

26

22 

22 

21 

19 

21

23 

30 

34 

39 

36

33 

31 

30 

27 

22

21

20 

18 

19 

20

761

Suspended sediment

Mean 

concentration 

(ppm)

32 

35

35

) 

\ 27

} -

Tons 

per 

day

2 

2

2

4

2

(t)

65

July

49 

30 

22 

31 

50

138 

114 

80 

74 

56

45 

42 

156 

209 

89 

52 

44 

177 

999 

1,010

254 

124 

99 

101 

813 

6,570 

3,580 

1,520 

605 

518 

480

18,131

920 

350 

225 

930 

1,050

2,360

930 

420

330 

330 

5,140 

9,900 

4,580 

1,680 

1,070 

5,180 

9,080 

8,800

4,610 

2,150

6,820 

7,820 

5,960 

5,120 

2,800 

2,650 

2,610

122 

28 

13 

s!64 

142

el, 900 

726 

e340 

186 

64

40 

37 

s5, 310 

s 5, 940 

si, 190 

236 

127 

s3, 250 

s 29, 700 

s 24, 800

s3,280 

s750 

e460 

e800 

s 23, 700

1139,300 

s55, 900 

s21, 600 

4,570 

3,710 

3,380

331,800

May

Mean

discharge 

(second - 

feet)

22

24 

26 

26 

28

48 

48 

42 

51 

66

40 

31 

31 

36 

44

38 

30 

25 

22 

26

26 

37 

38 

27 

18 

18 

18 

24 

29 

39 

40

1,018

Suspended sediment

Mean 

concentration 

(ppm) } ::

305 

220 

350 

2,290

420 

176

170 

200

130 

104 

97 

90

109 

169 

180 

130 

117

95 

90 

85 

95 

108

Tons 

per 

day

3

e22

e34

e260 

40 

25 

48 

s430 

45 

15 

e!4 

17 

24

13

8 

7 

5 

e!5 

8 

17 

18 

9 

6 

5 

4 

6 

7 

12

1,140

August

350 

226 

179 

146 

127

119 

869 

5,840 

1,480 

669

664 

2,990 

3,730 

6,220 

2,050 

870 

630 

468 

380 

330

280 

240 

210 

189 

454

380 

1,300 

755 

3,290 

2,120 

630

38,185

2,200 

810 

620 

440 

300

500 

6,030 

7,620 

7,860 

4,930

8,460 

6,110 

6,800 

6,810 

4,610 

3,020 

2,050 

1,430 

600

510 

410 

340 

280

6,250 

5,480 

4.360

2,080 

494 

300 

173 

103 

161 

s 23, 400 

121,000 

31, 200 

s9, 190

el 1,000 

s 61, 400 

862,100 

114,000 

37,700 

10,800 

s5,240 

2,590 

1,470 

535

386 

266 

193 

143 

e6,300

e 2, 600 

e 34, 000 

613,000 

s 62, 500 

s 28, 800 

s 7, 850

651,000

June

Mean

discharge 

(secondfeet)

37 

34 

32 

27 

24

22 

21 

18 

15 

12 

12 

10 

5 

4 

4

4 

5 

3 

3 

4 

4 

3 

2 

2 

2 

2 

2 

4 

40 

103

460

£-spended sediment

Mean 

concentration 

(ppm)

| 88 

148

I 134 

121

759 

3,030

Tons 

per 

day

8 

10

4 

1

(t)

s229 

s890

1,230

September

360 

260 

212 

182 

158

142 

132 

123 

117 

109

102 

99 

95 

93 

94 

92 

90 

87 

84 

77 

71 

66 

65 

62 

61

60 

59 

72 

116 

62

3,402

1,730 

800 

450 

280 

250 

220 

190 

175 

160 

150

145 

130 

125 

120 

100 

90 

90 

85 

85 

90 

95 

80 

75 

165 

110

70 

45

2,850 

110

-

1,680 

562 

258 

138 

107

84 

68 

58 

50 

44

40 

35 

32 

30 

25 

22 

22 

20 

19 

19 

18 

14 

13 

28 

18

11 

7 

e400 

si, 180 

18

5,020

Total discharge for year (second-foot-days) 

Total load for year (tons) .................

66,313

992,300

e Estimated.

s Computed by subdividing day.

t Less than 1.0 ton.
KANSAS RIVER BASIN Continued 

SOUTH FORK SOLOMON RIVER AT ALTON, KANS. Conti

Particle-size analyses of suspended sediment, water year October 1949 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

 July ">A ..............

Time

5:15 p.m. 

7:15 a.m. 

5:30 p.m. 

4:45 p.m. 

3:30 p.m.

6:10 p.m. 

1:30 p.m. 

8:10 a.m. 

11:00 p.m. 

11:20 p.m.

4:15 p.m. 

5:15 p.m. 

2:00 p.m. 

10:40 p.m. 

12:40 a.m.

12:40 a.m. 

2:45 a.m. 

5:30 a.m. 

1:00 a.m. 

3:10 a.m.

3:10 a.m. 

6:00 a.m. 

6:25 a.m. 

6:25 a.m. 

9:45 a.m.

5:00 p.m. 

6:00 p.m. 

6:00 p.m

Discharge 

(secondfeet)

56 

49 

59 

73 

50

74 

36 

76 

144 

80

176 

280 

1,220 

2,510 

2,700

2,700 

2,060 

1,130 

3,970 

7,640

7,640 

11,400 

11,700 

11,700 

10,400

5, 1<?0 

4,850 

1,750

Suspended sedim

Concentration 

of sample 

(ppm)

1,960 

2,880 

393 

502 

187

600 

80 

3,060 

4,440 

4,270

5,620 

7,720 

14,800 

9,300 

8,780

8,780 

9,110 

10,900 

9,800 

8,960

8,960 

8,400 

8,090 

8,090 

7,410

6,o?0 

7,270 

14,500

Concentration 

of suspension 

analyzed 

(ppm)

1,240 

2,430 

648 

424 

539

1,040 

555 

4,050 

8,020 

3,240

4,080 

5,760 

8,440 

10,700 

4,530

4,340 

7,240 

9,360 

5,660 

4,370

4,320 

6,090 

4,490 

4,480 

7,280

4,400 

5,430 

9,590

Percent finer t

0.002

59 

56 

44 

50 

44

32 

32

59 

6

56 

3

57 

5

0.004

80 

82 

66 

66 

61

52 

52

82 

82 

87

87 

80 

53 

77 

78

16 

72 

64 

79 

74

11 

84 

77 

14 

79

80 

75 

44

0.008

94 

94 

83 

86 

84

70 

68

89 

78

79 

79

89 

83

0.016

96 

98 

94 

92 

95

86 

84 

99 

97 

99

99 

96 

76 

93 

93

96 

91 

83 

94 

91

90 

97 

94 

95 

96

97 

94 

67

0.0
KANSAS RIVER BASIN Continued 

SOUTH FORK SOLOMON RIVER AT ALTON, KANS. Conti

Particle-size analyses of suspended sediment, water year October 1949 to Sep

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection

Aug. 30 ................

Sept. 29 ...............

Time

10:00 p.m. 

1:00 a.m.

4:00 a.m. 

9:55 a.m. 

1:30 p.m. 

10:55 p.m. 

6:45 a.m.

12:05 a.m. 

5:45 a.m. 

10:50 a.m. 

3:00 p.m. 

7:10 a.m.

9:15 a.m.. 

7:30 a.m. 

1:20 p.m. 

7:00 p.m. 

9:45 p.m.

9:15 a.m. 

6:40 p.m. 

8:10 a.m. 

8:00 a.m.

Discharge 

(secondfeet)

2,460 

3,970

6,080 

7,060 

7,200 

3,730 

2,500

4,150 

8,500 

7,200 

5,730 

2,220

1,080 

4,640 

4,150 

4,640 

4,240

2,750 

1,170 

680 

120

Suspended sedim

Concentration 

of sample 

(ppm)

9,750 

8,860

7,620 

7,770 

7,540 

6,980 

13,000

6,400 

6,620 

5,200 

5,300 

7,400

6,880 

10,800 

5,800 

5,290 

5,380

6,160 

7,600 

4,920 

4,140

Concentration 

of suspension 

analyzed 

(ppm)

8,520 

4,190

5,060 

6,720 

6,790 

3,470 

10, 600

3,210 

5,810 

4,870 

4,550 

6,530

6,150 

7,990 

4,330 

4,500 

4,650

5,130 

6,510 

4,160 

9,890

Percent finer th

0.002

"

0.004

67 

77

78 

79 

78 

76 

42

76 

74 

76 

74 

50

48 

33 

55 

69 

74

59 

52 

62 

75

0.008

~

0.016

85 

93

95 

97 

95 

94 

66

89 

91 

93 

92 

69

70 

57 

74 

85 

90

76 

70 

95 

99

0.0
KANSAS RIVER BASIN Continued 

SOLOMON RIVER AT BELOIT, KANS.

LOCATION. At bridge on State Highway 14 in Beloit, Mitchell County, 300 feet downstream from dam at 

station, and about l£ miles upstream from Leban Creek. 

DRAINAGE AREA. 5,430 square miles. 

RECORDS AVAILABLE. Chemical analyses: December 1949 to August 1950.

Water temperatures: February 1949 to September 1950.

Sediment records: May 1948 to September 1950. 

EXTREMES, 1949-50. Water temperatures: Maximum, 83°F June 25; minimum, freezing point on several da

Sediment concentrations: Maximum daily, 12,900 ppm Oct. 10; minimum daily, 2 ppm Jan. 3, 4.

Sediment loads: Maximum daily, 185,000 tons Aug. 14; minimum daily, less than 1 ton Jan. 2-4.

EXTREMES, 1948-50. Water temperatures (February 1949 to September 1950): Maximum, 83°F June 25, 195

days during winter months.

Sediment concentrations: Maximum daily, 15,100 ppm Aug. 6, 1948; minimum daily, 2 ppm Jan. 3, 4, 1

Sediment loads: Maximum daily, 185,000 tons Aug. 14, 1950; minimum daily, less than 1 ton Jan. 2-4

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply Pa

Chemical analyses, In parts per million, December 1949 to Augus

Date of collection

Aug. 15.............

Discharge 

(secondfeet)

95 

74 

156 

95 

88 

8,640

 114 

6,250 

4,040 

6,690 

6,530 

6,040 

22,500

Temperature 

(°F)

PH

7.9 

7.5 

8.0 

8.2 

8.2 

7.5

8.1 

7.7 

7.6 

7.3 

7.8 

7.8 

7.7

Specific 

conductance 

(micromhos at 

25° C)

1,060 

1,180 

709 

904 

926 

288

1,020 

257 

256 

254 

312 

353 

274

Silica 

(310,)

18 

18 

22 

10 

14 

13

21 

11 

16 

15 

17 

22 

16

Iron

(Fe)

0.02 

.04 

.04 

.02 

.02 

.02

.02 

.02 

.04 

.04 

.02 

.04 

.02

Calcium 

(Ca)

98 

135 

72 

88 

84 

48

102 

42 

40 

42 

49 

57 

44

Magnesium 

(Mg)

20 

18 

15 

19 

19 

4.3

18 

3.0 

2.4 

2.1 

2.3 

4.6 

3.4

Sodium 

(Na)

Potassium 

(K)

108 

114 

60 

84 

93 

6.9

96 

7.1 

12 

13 

14 

11 

9.2

Bicarbonate 

(HCOS )

288 

398 

204 

a 264 

266 

163

310 

136 

123 

137 

142 

180 

150

Sulfate

(SO,)

178 

178 

124 

148 

138 

13

135 

15 

24 

20 

30 

26 

17

Chloride 

(Cl)

93 

99 

54 

77 

89 

2.0

98 

1.5 

4.0 

3.5 

6.5 

4.0 

1.5

a Includes equivalent of 8 parts per million of carbonate (CO3).
MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued 

SOLOMON RIVER AT BELOIT, KANS. Continued

lempeiaiure ^ r; 01 water, waier year ijtriopei i»t» 10 oepiemuer A»au 

^Once-daily temperature measurement generally between 8 a. m. and 10 a. mj

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

Average

Oct.

58

60

61

62

65

64

66

69

64

60

59

56

54

55

54

55

57

59

62

58

55

51

49

49

47

49

48

52

56

47

57

Nov.

46

47

43

45

45

46

47

47

--

45

48

46

49

47

44

43

43

45

47

47

48

49

48

47

--

Dec.

45

46

45

44

42

41

39

35

35

37

39

39

35

35

38

37

36

37

35

32

32

36

36

32

34

36

37

36

37

35

37

Jan.

37

34

32

32

37

38

37

38

37

36

32

38

32

36

38

32

32

38

38

37

36

32

32

..

36

38

32

32

32

35

Feb.

32

38

38

39

40

40

35

35

40

36

35

38

32

32

38

32

40

34

40

38

38

37

40

40

38

40

40

40

--

37

Mar.

40

34

34

40

40

39

36

38

38

40

32

32

32

34

40

40

40

38

36

38

38

40

40

40

47

57

50

45

46

45

48

40

Apr.

48

54

50

44

54

46

50

51

57

60

53

52

50

49

51

53

55

50

52

52

53

60

65

56

55

56

56

49

48

53

May

52

56

54

62

53

57

59

62

60

63

61

63

65

67

68

68

72

69

68

65

57

63

69

73

66

60

58

63

64

64

63

65

June

62

67

64

66

68

71

70

73

72

73

78

79

81

82

82

78

76

81

72

72

78

80

82

82

83

80

78

75

72

73

--

73

July Aug.

78 78

73 77

72 76

78 76

68

72

73

74

70

72

74

76

75

73

75

70

68

68

68

68

72

72

74

76

68

72

74

75

74

77

78

73

75

74

74

72

75

74

77

76

72

71

78

82

76

72

72

70

68

70

70

72

70

72

69

66

68

65

68

73

Sept.

69

72

72

70

68

68

65

66

65

67

62

62

..

70

69

64

65

64

62

64

63

62

64

64

--
KANSAS RIVER BASIN

KANSAS RIVER BASIN Continued

SOLOMON RIVER AT BELOIT, KANS. Continued

Suspended sediment, water year October 1949 to September 1950

461

Day

0

1ft

Ifl

on

23

Oft

29

TotalQ

on

21 

22------ 

23 

24 ----- 

25 

26 

27 ...... 

28 

29 

30 ...... 

31 

Total

October

Mean

charge 

(secondfeet)

54 

78 

78 

74 

78 

74 

74 

74 

88 

3,100 

5,900 

3,120 

900 

466 

350

278 

224 

192 

174 

164

151 

138 

134 

130 

126

126 

122 

122 

126 

122 

118

16,955

Suspended sediment

Mean 

concentration 

(ppm)

98 

120 

91 

102 

109 

181 

109 

102 

427 

12,900

6,700 

7,660 

9,350 

8,310 

4,310

1,020 

491 

230 

175 

169

121

108 

102 

98 

81

63 

55 

50 

51 

48 

52

Tons 

per 

day

14 

25 

19 

20 

23 

36 

22 

20 

s!33 

s 115, 000

s 105, 000 

s 57, 200 

s 23, 400 

10,500 

s4,160

766 

297 

119 

82 

75

49 

40 

37 

34 

28

21 

18 

16 

17 

16 

16

317,200

January

85 

80 

80 

78 

118

142 

106 

92 

84 

88

95 

130 

98 

60 

98

81 

95 

67 

88 

92 

92 

102 

106 

110 

62

70 

95 

92 

95 

88 

78

2,847

5 

3 

2 

2 

34

1 73 

66

28

32 

14

--

1 

(t) 

(t) 

(t) 

11

22 

16

7

6 

3

293

November

Mean

charge 

(second - 

feet)

114 

110 

110 

110 

110 

110 

110 

114 

118 

122 

122 

122 

118 

114 

114

110 

106 

106 

106 

106

106 

110 

114

114 

114

118 

114 

118 

118 

118

3,396

Suspended sediment

Mean 

concentration 

(ppm)

54

13 

26

Tons 

per 

day

16

elO 

4 

8

286

February

74 

67 

64 

62 

64

74 

81 

88 

92 

106

110 

110 

134 

142 

146

169 

169 

169 

178 

219 

224 

192 

164 

156 

146

146 

146 

156

3,648

83 

66

1 '

25 

22 

29 

39 

59 

57 

38

1;

--

15

17

17

11 

10 

14 

23 

36 

30 

17

8

441

December

Mean

charge 

(secondfeet)

118 

118 

114 

114 

114 

110 

110 

110 

106 

110

110 

110 

81 

60 

81

122 

126 

126 

106

42 

44 

74 

118 

110

95 

95 

95 

95 

95 

90

3,109

Suspended sediment

Mean 

concentration 

(ppm)

17 

35 

18

Ton^ 

per 

day

5 

10 

4

194

March

151 

160 

160 

130 

126

138 

138 

138 

134 

126

130 

81 

64 

114 

106

130 

134 

142 

151 

160

138 

122 

122 

160 

142

142 

134 

122

118 

106 

102

4,021

22 

23 

42 

36 

43

56 

79 

68 

70 

45

35 

28 

30 

29 

39

57 

68 

73 

47 

32

38 

75 

69 

66 

97

88 

72 

49 

40 

32 

22

--

9 

10 

18 

13 

15

21 

29 

25 

25 

15 

12 

6 

5 

9 

11

20 

25 

28 

19 

14 

14 

25 

23 

28 

37

34 

26 

16 

13 

9 

6

560

e Estimated.

s Computed by subdividing day.

t Less than 1.0 ton.
462 MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued

SOLOMON RIVER AT BELOIT, KANS.--Continued

Suspended sediment, water year October 1949 to September 1950 Continue-J

Day

2

13

18

99

93

25

9*7

29

31 

Total8 

9 

10-- 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

April

Mean

charge 

(secondfeet)

92 

92 

92 

92 

92

95 

95 

98 

98 

98

95 

95 

92 

88 

88

88 

88 

95 

102 

110

114 

110 

102 

102 

98

95 

92 

88 

84 

88

2,858

Suspended sediment

Mean 

concentration 

(ppm)

27 

39 

56

69 

58

32

I 53 

I 33

1 '

I 33

Tons 

per 

day

7 

10 

14

17 

15 

8 

13 

10

3- 

8

319

July

42 

130 

169 

141 

494

690 

790 

504 

2,820 

5,550

4,320 

456 

235 

164 

836 

3,800 

7,250 

7,830 

7,920 

8,010

7,250 

2,310 

930 

614 

1,980

4,330 

4,140 

4,520 

6,390 

6,480 

2,100

93,195

132 

198 

148

7,170 

6,350 

8,120 

5,250

5,420 

3,370 

524 

152 

5,540 

8,600 

4,940 

4,380 

5,510 

3,940

3,890 

6,270 

5,280 

3,150 

6,390

7,610 

6,090 

7,410 

4,450 

3,020 

5,080

15 

s86 

68 

e260 

el, 600

e 5, 200 

15,300 

8,640 

s 60, 500 

877,600

s 54, 400 

s4,970 

332 

67 

s 24, 600 

88, 200 

s95,300 

92,600 

96,600 

85,200

S77.600 

s 36, 200 

13,200 

5,220 

s 36, 600

s 83, 900 

s 66, 200 

s 89, 300 

76,800 

s 51, 400 

s 29, 900

1,278,000

Total discharge for year (second-foot-da) 

Total load for year (tons). ..............

May

Mean

charge 

(secondfeet)

88 

92 

92 

92 

437

333 

573 

1,740 

7,840 

8,930 

5,400 

500 

312 

317 

312

256 

198 

178 

489 

2,100

4,090 

2,220 

680 

334 

224

174 

156 

138 

651 

2,040 

1,620

42,606

Suspended sediment

Mean 

concentration 

(ppm)

48 

55 

63 

73 

6,040

6,160 

11,700 

7,680 

5,220

4,160 

6,460 

2,160 

1,450 

920

714 

286 

222

9,900

7,870 

8,650 

6,680 

2,870 

641

329 

223 

144 

2,910 

9,410 

9,790

Tons 

per 

day

11 

14 

16

18 

s7,640

e8,600 

s 10, 900 

s 57, 300 

3153,000 

126,000

60,700 

8,720 

1,820 

1,240 

775

494 

153 

107 

e6,300 

s 60, 000

86, 900 

51,800 

12,300 

2,590 

388

154 

94 

54 

s7,120 

s53,400 

s 44, 000

762,600

August

1,500 

1,240 

730 

488 

374

300 

661 

3,580 

5,190 

5,970

5,550 

3,530 

6,760 

18,500 

22,200 

16,200 

9,650 

4,310 

2,100 

1,680

1,410 

1,220 

1,060 

950 

1,100

3,430 

3,980 

7,720 

8,730 

9,660 

9,550

159,333

3,210 

3,270 

3,370 

2,420 

1,410

1,010

8,050 

4,980 

4,360

4,030 

6,880 

5,090 

3,700 

3,070 

2,940 

2,510 

4,200 

3,430 

2,510

1,770 

1,380 

1,100 

860

6,700 

6,280 

3,240 

3,200 

3,340 

2,920

13,000 

10,900 

6,640 

3,190 

1,420

818 

e 6, 900 

77,800 

69, 800 

70, 300

60,400 

65,600 

887,400 

185,000 

164,000 

128,000 

65,400 

846,400 

19,400 

11,400

6,740 

4,540 

3,150 

2,200 

e7,400

62,000 

67,500 

67,500 

75,400 

87,100 

75,300

1,573,000

June

Mean

charge 

(secondfeet)

582 

300 

240 

192 

169

151 

134 

126 

118 

110

98 

92 

84 

81 

278 

142 

88 

74 

62 

70

64 

62 

54 

60 

54

47 

44 

44 

50 

47

3,717

Suspended sediment

Mean 

concentration 

(ppm)

4,530 

870 

389 

198 

179

132 

144 

173 

102 

104

133 

165 

122

87

261 

161 

172 

221 

218

178 

164 

145 

140 

147

150 

143 

146 

174 

145

-

Tons 

per 

day

s7,790 

704 

252 

103 

82

54 

52 

59 

32 

31 

35 

41 

28 

19 

e!90

100 

38 

34 

37 

41

31 

27 

21 

23 

21

19 

17 

17 

23 

18

9,940

September

8,620 

3,990 

3,130 

1,620 

1,080

850 

772 

703 

660 

618

578 

558 

520 

484 

484 

466 

466 

466 

448 

430

412, 

484 

502 

395 

350

350 

336 

336 

336 

2,800

33,244

2,280 

3,740 

2,670 

1,690 

1,180

910 

681 

555 

498 

433

380 

357 

320 

339 

341 

305 

298 

270 

230 

229

232 

303 

507 

1,020 

750

389 

292 

253 

290 

9,550

~

s) ....................................................

53,100 

839,500 

823,000 

7,390 

3,440

2,090 

1,420 

1,050 

887 

722

593 

538 

449 

443 

446 

384 

375 

340 

278 

266 

258 

396 

687 

1,090 

709

368 

265 

230 

263 

s 76., 5.00

217,500

368,929 

4,160,000

e Estimated.

s Computed by subdividing day.
KANSAS RIVER BASIN Continued 

SOLOMON RIVER AT BELOIT, KANS. Continued

Particle-size analyses of suspneded zediment, water year October 1949 t

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S, 

W, in distilled water; C, chemically disperzed; M, mechanically d

Date of collection

Mav 21 .................

Time

7:40 a. m. 

7:40 a.m. 

5:55 p.m. 

9:30 p.m. 

1:20 a.m.

1:20 a.m. 

8:00 a. m. 

10:15 a.m. 

11:40 a.m. 

12:00 m.

6:45 p. m. 

7:50 a. m. 

12:10 p.m. 

8:10 a. m. 

6:05 p.m.

7:55 a. m. 

5:45 p. m. 

7:55 a. m. 

7:25 a. m. 

10:10 a. m.

5:30 p. m. 

8:45 a.m. 

12:45 a. m. 

2:10 a.m. 

2:10 a.m.

6:40 a. m. 

9:10 a. m. 

5:30 p. m. 

11:40 p.m. 

8:45 a. m.

Discharge 

(secondfeet)

2,770 

2,770 

4,420 

4,730 

5,130

5,130 

5,760 

5,900 

5,970 

5,970

6,320 

3,570 

2,500 

1,000 

710

504 

410 

362 

295 

596

438 

2,390 

8,550 

8,550 

8,550

8,830 

8,930 

3,100 

1,110 

4.320

Suspended zedim

Concentration 

of sample 

(ppm)

19,400 

19,400 

12,000 

9,860 

8,130

8,130 

7,360 

7,060 

6,790 

6,460

5,660 

6,000 

7,400 

11,000 

7,460

9,210 

7,820 

5,080 

1,280 

10,700

3,300 

13,300 

5,260 

5,070 

5,070

5,370 

5,360 

3,980 

5,260 

7.460

Concentration 

of suspension 

analyzed 

(ppm)

4,020 

4,090 

4,800 

4,090 

2,730

2,770 

5,380 

1,710 

6,890 

4,580

4,200 

4,020 

5,400 

3,640 

3,010

3,650 

3,070 

4,100 

1,090 

9,070

2,550 

11,600 

4,100 

4,760 

4,810

4,670 

3,650 

2,930 

8,640 

6.270

Percent finer th

0.002

29

5 

28

7 

18

39 

47 

51 

40 

50

52 

49 

44 

35 

41

46 

41 

45 

59

42

62 

14

61

0.004

42 

12 

42 

28 

44

64 

65 

70 

66 

67

73 

64 

62 

49 

58

64 

67 

71 

80 

59

64 

40 

79 

77 

46

83 

88 

74 

70 

57

0.008

60 

35 

60 

67 

73

80 

82 

86 

82 

85

87 

81 

76 

70 

74

80 

83 

88 

93

79

90 

88

80

0.016

75 

73 

74 

79 

91

89 

91 

93 

89 

93

93 

92 

86 

84 

89

93 

94 

97 

98 

98

91 

70 

97 

96 

98

98 

99 

88 

94 

82

0.0
KANSAS RIVER BASIN Continued 

SOLOMON RIVER AT BELOIT, KANS. Continued

Particle-size analyses of suspended sediment, water year October 1949 to Sept

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection

July 17 .................

Aue. 13 .................

Time

3:25 p.m. 

4:35. p. m. 

12:45 p. m. 

4:00a.m. 

4:00 a. m.

6:00 p. m. 

11:30 a.m. 

5:30 p. m. 

9:25 p.m. 

10:50 p.m.

8:15 a.m. 

8:15 p.m. 

11:45 p.m. 

6:45 p.m. 

8:30 p.m.

3:15 p.m. 

12:50 a. m. 

3:00 p.m. 

12:10 p. m. 

7:00 a. m.

12:4 5 p.m. 

10:35 p.m. 

10:35 p.m. 

1:25 p.m. 

9,$n p. in.

6:20 p. m. 

9:25 p. m. 

3:15 a.m. 

6:00 p.m. 

8:00 a.m.

Discharge 

(secondfeet)

3,920 

4,040 

2,160 

1,800 

1,800

2,390 

3,490 

4,140 

4,680 

4,780

5,190 

6,390 

6,530 

1,680 

1,980

3,920 

5,620 

7,830 

8,010 

8,010

4,320 

3,690 

3,690 

4,680 

4,730

4,950 

7,250 

7,410 

5,490 

5.690

Suspended sedim

Concentration 

of sample 

(ppm)

7,740 

7,840 

9,400 

8,710 

8,710

13,900 

7,760 

8,390 

6,460 

5,200

6,770 

3,800 

4,140 

7,660 

17,200

6,370 

6,730 

4,500 

3,990 

3,640

6,710 

8,040 

8,040 

7,440

M4n

5,540 

3,770 

3,100 

4,310 

5.170

Concentration 

of suspension 

analyzed 

(ppm)

4,040 

4,730 

8,050 

5,520 

5,560

9,560 

5,130 

3,810 

6,990 

9,030

3,740 

1,870 

8,650 

4,010 

6,140

4,170 

4,060 

6,500 

2,500 

6,490

4,270 

4,250 

4,380 

5,390 

5,4nn

3,560 

2,360 

2,060 

2,360 

3.320

Percent finer th

0.002

42

29 

3

73

72

50 

7

75 

72

0.004

68 

61 

65 

44 

7

53 

60 

58 

64 

63

78 

79 

80 

79 

57

74 

77 

84 

79 

80

60 

70 

19 

71 

7?

82 

84 

80 

88 

75

0.008

73

66 

42

87

86

82 

77

92 

84

0.016

87 

83 

89 

76 

73

81 

82 

80 

86 

87

93 

90 

96 

87 

91

91 

95 

97 

88 

97

80 

90 

92 

90 

90

98 

94 

86 

93 

91

0.0
KANSAS RIVER BASIN Continued 

SOLOMON RIVER AT BELOIT, KANS. Continued

Particle-size analyses of suspended sediment, water year October 1949 to Sept

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date of collection

Aug 14 ...

Sept 1 ....

Sept 3

Sept. 30 ................

Time

9:15 p.m. 

3:00 p.m. 

7:10 p. m. 

8:00 p.m. 

8:35 p.m.

8:15 a. m. 

8:00 p.m. 

12:05 a.m. 

12:45 p. m. 

5:15 p.m.

7:15 a. m. 

6:40 p.m. 

7:15 a.m. 

7:15 a. m. 

12:30 p.m.

7:15 a.m. 

12:30 p. m. 

7:15 a. m. 

7:15 a.m. 

8:30 a.m. 

5:15 p.m.

Discharge 

(secondfeet)

9,130 

21,200 

22, 500 

22, 500 

22,800

23,600 

20,600 

11,900 

3,800 

4,470

7,450 

8,280 

8,460 

9,990 

9,770

9,230 

9,440 

9,380 

4,470 

3,530 

3,300

Suspended sedim

Concentration 

of sample 

(ppm)

3,900 

3,590 

3,450 

3,450 

3,450

3,090 

2,940 

2,700 

7,450 

10, 200

3,280 

2,920 

3,400 

3,560 

3,540

3,040 

3,060 

2,220 

3,930 

2,840 

8,710

Concentration 

of suspension 

analyzed 

(ppm)

2,520 

2,000 

1,860 

7,320 

1,880

1,590 

1,660 

8,010 

3,750 

5,550

1,800 

9,790 

1,850 

2,050 

2,230

1,900 

2,040 

1,190 

1,890 

1,440 

4,740

Percent finer th

0.002

66 

59 

56

58

66 

52

75

78 

73 

63

71 

61 

74 

49 

42

0.004

70 

80 

79 

82 

81

86 

76 

88 

50 

46

83 

79 

88 

84 

79

83 

75 

83 

64 

61 

62

0.008

72 

90 

92

93

96 

90

88

92 

91 

91

90 

84 

90 

76 

75

0.016

73 

95 

95 

99 

97

96 

95 

100 

75 

72

93 

99 

95 

94 

95

94 

90 

94 

88 

84 

88

0.03
KANSAS RIVER BASIN Continued 

NORTH FORK SOLOMON RIVER AT KIRWIN, KANS.

LOCATION. At gaging station at bridge on county road, half a mile south of Kirwin, Philips County, t

li miles upstream from Deer Creek. 

DRAINAGE AREA. 1,290 square miles. 

RECORDS AVAILABLE. Water temperatures: February to September 1950.

Sediment records: February to September 1950. Water temperatures: Maximum, 80°F July 24; minimum

EXTREMES, February to September 1950. Water temperatures: Maximum, 80°F July 24; minimum, not deter

Sediment concentrations: Maximum daily, 14,800 ppm July 13; minimum daily, not determined.

Sediment loads: Maximum daily, 320,000 tons Aug. 12; minimum daily, less than 1 ton on many days. 

REMARKS. Records of discharge for water year October 1949 to September 1950 given in Water-Supply Pa

Chemical analyses, In parts per million, July 1950

Date of collection

July 27, 1950 ........

Discharge 

(secondfeet)

4.740

PH

7.9

Specific 

conductance 

(micromhos at 

25° C )

266

Silica 

(SlOj)

18

Iron 

(Fe)

0.04

Calcium 

(Ca)

44

Magnesium 

(Mg)

3.4

Sodium 

(Na)

Potassium 

(K)

7.8

Carbonate 

(CO,)

n

Bicarbonate 

(HCO,)

154

Sulfate 

(SO.)

in

Chloride 

(Cl)

n 5
KANSAS RIVER BASIN 467

KANSAS RIVER BASIN Continued 

NORTH FORK SOLOMON RIVER AT KIRWIN, KANS.--Continued

'Temperature (°F) of water, February to September 1950 

^Once-daily temperature measurement generally between 7 a. m. and 9 a. mj

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

Average

Oct. Nov. Dec. Jan. Feb.

..

_

37

34

..

38

36

33

34

34

35

35

35

38

38

--

Mar.

36

33

35

35

43

47

39

33

39

34

33

34

33

35

36

39

42

39

34

33

36

39

46

41

45

58

40

39

38

Apr.

..

_

46

46

48

50

46

46

38

44

45

54

55

52

45

46

52

58

62

59

44

51

48

48

42

44

49

May

49

50

55

48

50

51

65

56

58

55

59

57

61

68

63

69

65

62

60

58

69

67

68

59

51

58

59

64

63

69

60

June

58

64

58

60

63

66

66

67

63

75

70

73

75

74

75

71

69

70

65

69

72

72

73

..

78

69

68

70

68

70

--

69

July

70

70

70

70

64

70

69

70

75

75

72

75

70

68

70

69

70

72

77

69

69

70

71

80

69

72

69

76

71

73

70

71

Aug.

..

68

68

72

71

70

67

69

75

74

74

72

74

72

75

76

71

68

62

61

64

67

70

72

64

65

61

66

62

69

Sept.

66

68

69

62

65

_

60

60

69

63

55

56

56

57

61

63

64

66

65

68

62

56

57

58

56

61

58

58

64

67

62
468 MISSOURI RIVER BASIN

KANSAS RIVER BASIN Continued

NORTH FORK SOLOMON RIVER AT KIRWIN, KANS. Continued 

Suspended sediment, February to September 1950

Day

0

Q

12

19

20

99

««

24

25

28

31 

Total1 ..... 

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 

2fl_____ 

29- - 

30 ----- 

31 -----

Total

January

Mean

charge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

April

22 

21 

21 

21 

21

21 

21 

24 

22 

23

19 

19 

18 

18 

25

24 

26 

26 

24 

23 

24 

25 

24 

21 

18 

17 

17 

21 

22 

21

649

1 -

19

} :

20 

16

--

e2

1

(t) 

e90

1

e36

(t)

157

February

Mean

charge 

secondfeet)

8 

8 

8 

9 

10

11 

14 

17 

20 

30

39 

46 

40 

46 

53

44 

41 

47 

41 

33

47 

37 

41 

45 

40

34 

38 

40

887

Suspended sediment

Mean 

concentration 

(ppm)

28 

30

34

145

180 

110 

68

60 

89

Tons 

per 

day

(t)

e4

e26

18 

e22 

20 

13

7

elO 

6 

10

182

May

19 

25 

25 

25

75

40 

25 

25 

24 

18 

17 

16 

21 

18 

18

17 

14 

14 

17 

15

20 

16 

14 

9 

14 

10 

12 

15 

25 

25 

34

662

38 

52 

56 

48 

3,900

1,380 

235 

160 

130 

87

88 

99

112

106 

103

120 

124

98

115

76

587

--

2 

4 

4 

3 

si, 410

sl72 

16 

11 

8 

4

4 

4 

e20 

5 

e40

e60 

4 

4 

e26 

5

7 

el5 

elO 

2 

e30 

3 

2 

e20 

e70 

e24 

54

2,040

March

Mean

charge 

secondfeet)

37 

29 

29 

36 

34

30 

26 

28 

31 

23

21 

25 

26 

32 

33

37 

34 

24 

19 

25

25 

31 

30 

26 

28

28 

28 

21 

22 

24 

22

864

Suspended sediment

Meai 

concentration 

(PPT)

83

49 

50

47 

42

47 

29 

30 

32

75

70 

53 

51 

49

71 

55 

92 

72 

50

61 

54 

50 

48 

43 

42

Tons 

per 

day

8 

el3 

e9 

5 

4

4 

3 

e9 

elO 

3 

2 

2 

2 

el3 

7

7 

5 

3 

2 

e!3

5 

5 

7 

5 

4

5 

4 

3 

3 

3 

2

170

June

20 

17 

14 

12 

9

9

7 

6 

4 

6

6 

4 

4 

4 

4

20 

5 

3 

3 

3

3 

3 

2 

2 

1 

1 

1 

2 

128 

44

237

179 

115 

122 

122 

114

105 

96 

86

1"

150

1,4<W) 

1-H

86

13,600 

3,800

--

10 

5 

5 

4 

3

2 

2 

1

1

2

s!21 

9

(t)

S 5, 190 

S525

5,880

e Estimated.

s Computed by subdividing day.

t Less than 1.0 ton.
KANSAS RIVER BASIN 469

KANSAS RIVER BASIN Continued

NORTH FORK SOLOMON RIVER AT KIRWIN, KANS. Continued 

Suspended sediment, February to September 1950--Continued

Day

2

i ft

23

25

Total -

July

Mean 

discharge 

(secondfeet)

17 

8 

6 

120 

334

101 

59 

37 

32 

17

18 

18 

600 

215 

76

36 

1,570 

616 

1,080 

181

71 

101 

131 

59 

593

835 

3,470 

821 

338 

238 

326

12, 124

Suspended sediment

Mean 

concentration 

(ppm)

54 i 

269 

168

8,200 

2,550 

1,150 

1,010 

466 

274 

485 

14,800 

5,680 

2,350

800 

13,600 

9,020 

9,850 

4,490

1,700

7,500 

3,100 

7,110 

10,300 

9,820 

6,570

6,640

-

Tons 

per 

day

25 

6 

3 

e5,700 

e 13, 000

s2,420 

406 

115 

87 

21

13 

s32 

s 24, 900 

s3,580 

482

78 

s 57, 000 

s 16, 100 

s 29, 800 

s2,310 

326 

el, 600 

s2,800 

494 

s 14, 400

s 25, 000 

s 93, 400 

s 15, 300 

e4,500 

e2,400 

s6,410

322,700

August

Mean

charge 

(secondfeet)

142 

79 

58 

46 

37

34 

1,890 

1,300 

1,360 

935

474 

11,800 

3,520 

2,170 

1,060

740 

482 

374 

292 

260

217 

196 

178 

160 

176

878 

938 

616 

915 

422 

374

32,123

Suspended sediment

Mean 

concentration 

(ppm)

2,800 

1,210 

620 

385 

275

221 

12,000 

11,600 

10,300 

5,720

7,640 

8,480 

6,300

4,210 

3,350 

1,590 

1,580 

1,050

590 

383 

333 

285

11,200 

9,250 

7,180 

3,360 

4,580

-

Tons 

per 

day

1,070 

258 

97 

48 

27

20 

s 62, 700 

s 42, 900 

s 37, 900 

s 15, 200

e 10, 000 

e 320, 000 

s 70, 100 

s 50, 000 

s 18, 300

8,410 

4,360 

1,600 

1,240 

737 

346 

203 

160 

123 

el, 200

e 36, 000 

s 28, 700 

s 15, 600 

s 17, 600 

3,830 

4,620

753,300

September

Mean 

discharge 

(secondfeet)

252 

181 

148 

136 

130

123 

119 

104 

96 

95

92 

86 

79 

79 

83

85 

82 

82 

79 

76

71 

68 

66 

66 

61

61 

60 

60 

62 

59

2,841

Suspended sedinent

Mean 

concentration 

(ppm)

2,150 

1,080 

670 

467 

378

350 

280 

245 

228 

202

178 

169 

146 

140 

139

114 

98 

83 

68 

54

54 

56 

58

385 

195 

202 

201 

185 

174

-

Tons 

per 

da"

1,460 

528 

268 

171 

133

116 

90 

69 

59 

52

44 

39 

31 

30 

31

26 

22 

18 

14 

11

10 

10 

10 

e!20 

63

32 

33 

32 

31 

28

3,580

Total discharge for period Feb. 1 to Sept. 30 (second-foot-days) 

Total load for period Feb. 1 to Sept. 30 (tons) .................

5C.497 

l,08f,000

e Estimated.

s Computed by subdividing day.
KANSAS RIVER BASIN Continued 

NORTH FORK SOLOMON RIVER AT KIRWIN, KANS. Conti

Particle-size analyses of suspended sediment May to August 

(Methods of analysis: B, bottom withdrawal tube; 0, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

May 5, 1950 ............

May 13 .................

May 28 .................

June 16 .................

June 29 .................

July 1 ..................

July 4 ..................

July 5 ..................

July 13 .................

July 13 .................

July 13 .................

July 13 .................

July 13 .................

July 13 .................

July 13 .................

July 17 .................

July 17 .................

July 19 .................

July 25 .................

July 25 .................

July 27 .................

July 27 .................

July 27 .................

Aug. 7 .................

Aug. 8 .................

Aug. 9 .................

Time

5:10 p.m. 

8:15 a.m. 

8:30 a. m. 

9:30 a. m. 

8:10 a.m.

11:55 p.m. 

11:55 p.m. 

12:35 a.m. 

10:10 p.m. 

5:45 a. m.

12:15 a.m. 

1:35 a.m. 

1:35 a.m. 

3:30 a. m. 

3:30 a. m.

5:30 a. m. 

5:00 p. m. 

9:30 p. m. 

9:30 p.m. 

12:50 p.m.

10:25 p. m. 

10:25 p. m. 

1:10 a.m. 

4:10 a.m. 

8:25 a. m.

2:50 a.m. 

8:00 a.'m. 

9:00 a. m. 

11:55 p.m. 

7:00 p.m.

Discharge 

(secondfeet)

162 

34 

15 

29 

92

72 

72 

29 

575 

272

362 

725 

725 

850 

850

755 

560 

,270 

,270 

,060

,160 

,160 

3,400 

4,070

4,750

785 

2,450 

2,650 

725 

1.720

Suspended sedim

Concentration 

of sample 

(ppm)

9,710 

1,180 

2,490 

2,500 

3,240

7,790 

7,790 

1,280 

12,000 

7,900

20, 700 

25,800 

25,800 

19,900 

19, 900

17,600 

10, 600 

13, 600 

13,600 

8,830

11,400 

11,400 

13, 200 

in, 4(10

8,760

14, 800 

12, 600 

12, 000 

7,880 

10. 100

Concentration 

of suspension 

analyzed 

(ppm)

6,830 

702 

1,580 

1,740 

4,040

7,530 

7,830 

2,810 

7,830 

11,100

6,920 

7,280 

7,650 

9,330 

9,110

5,440 

11,500 

7,050 

7,060 

7,850

7,520 

7,460 

10, 200 

10, ^«0 

8,630

8,520 

11,100 

6,950 

6,520 

6.660

Percent finer t

0.002

46 

35 

27 

20

41 

3

42 

2 

44

38 

2

48 

3

0.004

58 

61 

48 

43 

31

55 

7 

90 

53 

62

49 

56 

5 

52 

4

61 

61 

51 

7 

57

49 

10 

43 

55 

61

31 

44 

46 

58 

48

0.008

73 

59 

56 

40

65 

43

74 

35 

71 

48

67 

59

63 

55

0.016

89 

85 

75 

73 

50

75

96 

79 

91

80 

89 

79 

83 

80

87 

87 

78 

78 

77

74 

74 

63 

79 

81

50 

67 

67 

76 

65

0.0
KANSAS RIVER BASIN Continued 

NORTH FORK SOLOMON RIVER AT KIRWIN, KANS.--Cont

Particle-size analyses of suspended sediment, May to August 1950 

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date of collection

Aug. 12, 1950...........

Aug. 26 ................

Aug. 29 ................

Time

10:45 a. m. 

11:45 a. m. 

3:15 p.m. 

5:10 p.m. 

7:35 a.m.

7:30 p.m. 

7:30 p. m. 

7:45 a. m. 

1:00 p. m.

Discharge 

(secondfeet)

10, 300 

10, 100 

10, 100 

3,020 

2,350

2,040 

2,040 

635 

1,680

Suspended sedim

Concentration 

of sample 

(ppm)

5,320 

5,550 

7,430 

8,100 

12, 600

16,000 

16, 000 

9,600 

6,460

Concentration 

of suspension 

analyzed 

(ppm)

3,470 

4,450 

7,100 

5,340 

6,290

10,250 

10, 800 

4,960 

6,090

Percent finer 

0.002

38 

2

0.004

70 

69 

69 

64 

41

49 

6 

55 

57

0.008

61 

50

0.016

90 

91 

92 

80 

55

73 

71 

76 

79

0.
KANSAS RIVER BASIN Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN KANSAS RIVER 

Chemical analyses, in parts per million, water year October 1949 to Sept

Date of collection

Discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Carbonate 

(CO,)

Bicarbonate 

(HCO,)

Sulfate 

(S04)

Chloride 

(Cl)

REPUBLICAN RIVER AT CLAY CENTER, KANS.

Julv 11 .............. 23.400 7.8

602

291

17

16 .02

64

42

41

9.2

5.1 11 0 154

62

28

14

24

2.5 

REPUBLICAN RIVER AT MILFORD, KANS.

Sent. 11. 1950 ....... 8.0 637 24 .02

87

74 12

83

47

6

0

346

252

85

68

66

38

BEAVER CREEK NEAR BEAVER CITY, NEBR.

Sent. 28.. ...........

18

a35

2,300

13

8.4

8.5

669

486

674

25

35

.04

.02

67

52

43

88

19

12

2.7

18

44

12

46

8

14

0

16

352

227

352

53

42

1.0

52

19

12

.5

.5

14

THOMPSON CREEK AT RIVERTON, NEBR.

June 15. ............. 23 8.3 391 34 .02

54

57

58

3.5

8.7

22

13

6

7

188

184

31

40

30

8.5

7.5

KANOPOLIS RESERVOIR, KANS.

Dec. 28, 1949, outlet..

May 6, 1950, outlet. . . .

May 6, depth 15 ft. ...

May 6, depth 8.0 ft. ..

May 6, depth 18 ft. ...

Sept. 12, outlet ......

b43,760

b42,910

b 42, 880

b42,880

b42,880

b 42, 880

b42,910

b 220, 320

8.1

8.0

7.8

7.9

8.0

8.1

,030

,360

,460

,450

,360

,360

,370

494

5.7

7.1

--

..

__

_

17

0.01

.01

..

__

__

.04

90

116

--

..

__

_

59

15

22

--

..

 

_

6.8

104

139

157

160

157

143

136

33

0

0

0

0

0

0

0

0

149

176

174

176

175

176

176

123

178

222

234

232

219

217

205

84

145

216

240

239

217

217

218

39

a Mean daily discharge.

b Reservoir storage, in acre-feet.
KANSAS RIVER BASIN 473

KANSAS RIVER BASIN--Continued

MISCELLANEOUS ANALYSES OF STREAMS IN KANSAS RIVER BASIN Continued 

Periodic determinations of suspended-sediment discharge, water year October 1949 to September 19'0

Instantaneous

water discharge

(second-feet)

Suspended sediment

Mean

concentration 

__(ppm)

Instantaneo-is

discharge 

(tons per dr?)

REPUBLICAN RIVER AT BENKELMAN, NEBR.

Nov. 1, 1949............... 112 768

Nov. 29 ................... 121 954

Jan. 3, 1950...............______________30 ______________185

SOUTH FORK REPUBLICAN RIVER NEAR BENKELMAN, NEBR

Nov. 1, 1949............... 29.2 349

Nov. 29 ................... 19.0 387

Jan. 3, 1950 .............. ______________10.1 ______________127

SAPPA CREEK NEAR OBERLIN, KANS.

Oct. 31, 1949.............. 8 7

Nov. 28 ................... ______________8 _______________35

BEAVER CREEK NEAR BEAVER CITY, NEBR.

Nov. 2, 1949............... 17 73

Jan. 3, 1950............... 16 30

Mar. 2.................... 44 128

Apr. 6 .................... 19 128

July 4 .................... 31 7,560

Aug. 7 .................... 824 6,160

232

312

15

3.4

1.3

15

6.6

633

13,700
INDEX

Page 

Alkali Creek at Ralston, Wyo............ 184,188

Alton, Kans., South Fork Solomon

River at ...................... 453-458

Aluminum............................. 8

Alzada, Mont., Little Missouri River at . 189-193 

Angostura Reservoir, S. Dak............ 251

Antelope Creek, 2 miles south of Basin,

Wyo. ......................... 187

ArLkaree River at Haigler, Nebr......... 379-381

Arvada, Wyo., Clear Creek near........ 179-182

Arvada, Wyo., Crazy Woman Creek near. 175-179 

Arvada, Wyo., Powder River at......... 156-161

B

Bad River near Fort Pierre, S. Dak. 254,255,256 

near Midland, S. Dak............... 254

Bad River basin ....................... 254-256

Badwater Creek at Bonneville, Wyo...... 133-136

Balzac, Colo., South Platte River at..... 322

Barratts, Mont., Beaverhead River at... 31-32 

Beaver City, Nebr., Sappa Creek near... 400-404 

Beaver Creek at Loretto, Nebr.......... 355-358

near Arapahoe, Wyo................ 185

near Beaver City, Nebr............. 472, 473

near Newcastle, Wyo............... 244-247

Beaverhead River at Barratts, Mont. .... 31-32

at Blaine, Mont.................... 37

Belle Fourche River below Moorcroft,

Wyo. ......................... 248-250

near Elm Springs, S. Dak. ......... 251

near Sturgis, S. Dak. .............. 251

Beloit, Kans., Solomon River at ........ 459-465

Bighorn Canal, 1 mile west of Basin, Wyo. 187 

3£ miles southwest of Greybull, Wyo. 187 

2 miles southwest of Manderson, Wyo. 187 

2 miles northeast of Neiber, Wyo.... 186

2f miles northeast of Neiber, Wyo... 186 

4 miles north of Worland, Wyo. ..... 186

Bighorn, Mont., Bighorn River at....... 66-70

Bighorn River at Bighorn, Mont. ........ 66-70

at Kane, Wyo. ..................... 61-65

at Thermopolis, Wyo............... 50-55

near Manderson, Wyo. ............. 56-60

Big Thompson River at mouth near

La Salle, Colo................. 360

Bijou Creek near mouth near Fort

Morgan, Colo. ................ 361

near Wiggins, Colo. ............... 327-329

Bitter Creek half a mile west of Garland,

Wyo. ......................... 188

near Garland, Wyo................. 184

near Garland, Wyo. (4 miles southeast of Garland) ............... 188

Bixby, S. Dak. Moreau River at ........ 228-233

Bluff Canal, 2| miles northeast of

Winchester, Wyo. ............. 186

8 miles southwest of Worland, Wyo. . 186 

Bonneville, Wyo., Badwater Creek at.... 133-136

Boron ................................ 11

Cache La Poudre River near Greeley,

Colo.......................... 360

Calamus River near Burwell, Nebr. . 367-368, 377 

Calcium .............................. 9

Cambridge, Nebr., Medicine Creek at... 398-399 

Cannonball River at Breien, N. Dak...... 217

near New Leipzig, N. Dak. ......... 213-216

Cannonball River basin................. 213-217

Carbonate and bicarbonate .............. 10

Cash, S. Dak., South Fork Grand River

near.......................... 222-224

Casper Creek at Casper, Wyo. ......... 320

Casper, Wyo., Casper Creek at........ 320

Casper, Wyo., North Platte River below 304-307

Cassa, Wyo., North Platte River near... 312-315

Cedar Creek near Pretty Rock, N. Dak.. 217

Cedar Rapids, Iowa, Cedar River at .... 26-30

Cedar River at Cedar Rapids, Iowa ..... 26-30

Chemical quality...................... 3

Cheyenne River at Angostura Reservoir

outlet, S. Dak................. 252

below Angostura Dam, S. Dak. ..... 252

near Eagle Butte, S. Dak........... 251

near Hot Springs, S. Dak........... 235-239

near Wasta, S. Dak................ 251

Cheyenne River basin.................. 235-253

Chloride.............................. 10-11

Clear Creek near Arvada, Wyo. ........ 179-182

near Buffalo, Wyo................. 184

Cody, Nebr., Niobrara River near...... 278-281

Coleman drain near Shoshoni, Wyo. ..... 118-121

Collection and examination of samples... 3-5

Color................................ 12

Colo.-Kans. State line, South Fork

Republican River near......... 389-391

Composition of surface waters.......... 7-15

Cooperation .......................... 16-17

Correctionville, Iowa, Little Sioux

River at...................... 295-297

Corrosiveness........................ 14

Crazy Woman Creek near Arvada, Wyo.. 175-179

Des Lacs River at Foxholm, N. Dak..... 20

Dewey drain near Pavillion, Wyo. ...... 110

Dismal River at Dunning, Nebr. ..... 365, 373-374

near Gem, Nebr................ 364-365, 373

Dissolved solids ...................... 12

Division of work ...................... 17

Douglas, Wyo., North Platte River near. 308-311 

Dry Creek at Greybull, Wyo............ 187-188

Dudley wasteway near Pavillion, Wyo. .. 104-105 

Dunning, Nebr., Middle Loup River at .. 334-340

Eagle drain near Shoshoni, Wyo. ....... 126-128

Elk Creek, 5 miles south of Basin, Wyo . 187 

Elkhorn River at Ewing, Nebr. ...... 36"* 377-378

at Neligh, Nebr. ............... se-'-Seg, 378

Ellis, Kans., Smoky Hill River near .... 425-429

Expression of results.................. 6-7

Fifteenmile Creek at Worland, Wyo ..... 187

Fivemile Creek above Wyoming Canal

near Pavillion, Wyo. .......... 77-80

near Riverton, Wyo................ 81-85

near Shoshoni, Wyo................ 86-92

Fivemile 76 drain near Riverton, Wyo... Ill

Fluoride.............................. 11

Fort Peck Reservoir, Mont............. 37

Gooseberry Creek at Pulliam, Wyo...... 186

near Grass Creek, Wyo............ 186

Goose Egg, Wyo., North Platte River

near......................... 301-303

Gordon, Nebr., Niobrara River near.... 274-277

Grand River at Shadehill, S. Dak........ 218-221

near Wakpala, S. Dak.............. 225

Grand River basin..................... 218-227

475
476

Page 

Greybull River near Basin, Wyo......... 187

Guernsey Reservoir, Wyo., North Platte

River below................... 316-318

H

Haigler, Nebr., Ankaree River at....... 379-381

Hardness.............................. 13

Hardy, Nebr., Republican River near.... 388

Hat Creek near Edgemont, S. Dak. ...... 252, 253

Hazen, N. Dak., Knife River at......... 202

Heart River below Heart Butte Dam near

Glen Ullin, N. Dak............. 212

near Mandan, N. Dak............... 212

near Richardton, N. Dak............ 208-212

near South Heart, N. Dak. .......... 204-212

Heart River basin...................... 204-212

Hot Springs, S. Dak., Cheyenne River

near.......................... 235-239

Hudson Bay and Upper Mississippi River

basins..................... .. 19-30

Huron, S. Dak., James River at ........ 293

Hydrogen-ion concentration............. 12-13

I

Introduction........................... 1-3

Iowa City, Iowa, Iowa River at.......... 21-25

Iowa River at Iowa City, Iowa........... 21-25

Iowa River basin....................... 21-30

Iron.................................. 9

James River at Columbia, S. Dak........ 294

at Huron, S. Dak................... 293

at Jamestown, N. Dak.............. 294

James River basin ..................... 293-294

Johnson Reservoir, Nebr. .............. 361

Tulesburg, Colo., South Platte River at.. 323-326

K

Kadoka, S. Dak., White River near...... 263-270

Kane, Wyo., Bighorn River at .......... 61-65

Kanopolis Reservoir. Kans. ............ 472

Kansas River basin .................... 379-473

Kaycee, Wyo., Middle Fork Powder

River above................... 167-170

Kaycee, Wyo., Middle Fork Powder

River near.................... 171-174

Kaycee, Wyo., South Fork Powder

River near.................... 149-151

Kellett dram near Pa-rillion, Wyo. ...... 106-109

Kennebec, Iowa, Little Sioux Rirer near.. 298-300 

Kersey, Colo., South Platte River near .. 321 

Keyapaha River at Wewela, S. Dak....... 290, 292

near Hidden Timber, S. Dak. ....... 289, 292

Kirwm, Kans., North Fork Solomon

River at...................... 466-471

Knife River at Hazen, N. Dak. .......... 202

near Golden Valley, N. Dak......... 203

Knife River basin...................... 202-203

Lance Creek at Spencer, Wyo. .......... 240-243

Lateral P-34.9 wasteway near Shoshoni,

Wyo. ......................... 129

Lateral P-36. 8 wasteway near Shoshoni,

Wyo. ......................... 130

Literature cited ....................... 17-18

Little Missouri River at Alzada, Mont. .. 189-193 

at Marmarth, N. Dak............... 194-196

at Medora, N. Dak................. 197-201

Little Missouri River basin ............. 189-201

Little Sioux River at Correctionville,

Iowa. ......................... 295-297

near Kennebec, Iowa............... 298-300

Little Sioux River basin ................ 295-300

Locate, Mont., Powder River near ...... 162-166

Long Pine Creek near Riverview, Nebr... 286-287 

Loretto, Nebr., Beaver Creek at........ 355-358

Page 

Lost Wells Butte drain near Riverton,

Wyo.,......................... 115-117

Loup River power canal near Genoa,

Nebr.......................... 368,377

Lovewell, Kans., White Rock Creek

northwest of................... 418-424

Lower Hanover Canal, 2 miles northeast

of Worland, Wyo. .............. 187

6 miles northeast of Worland, Wyo. 187 

lj miles south of Worland, Wyo. .... 187

4 miles south of Worland, Wyo....... 187

4| miles south of Worland, Wyo...... 187

M

McConaughy Lake, Nebr. ............... 359

Magnesium............................ 9

Manderson, Wyo., Bighorn River near ... 56-60 

Manganese ............................ 9

Marias River near Shelby, Mont. ........ 39-43

Marias River basin..................... 39-43

Marmarth, N. Dak., Little Missouri

River at ...................... 194-196

Medicine Creek at Cambridge, Nebr. .... 398-399

Medora, N. Dak., Little Missouri

River at ...................... 197-201

Middle Fork Powder River above

Kaycee, Wyo. ................. 167-170

near Kaycee, Wyo. ................. 171-174

Middle Loup River at Arcadia, Nebr.. 363-364, 372 

at Dunning, Nebr................... 334-340

at Loup City, Nebr. ............ 364 372-373

at St. Paul, Nebr. ................. 341-345

near Milburn, Nebr. ............... 363, 371

near Seneca, Nebr. ........ 362-363,370-371

Miles City, Mont., Tongue River at...... 145-148

Miles City, Mont., Yellowstone River at . 45 

Milk River at Nashua, Mont. ............ 44

below Fresno Dam, Mont. .......... 44

Milk River basin....................... 44

Mineral constituents in solution ......... 8-12

Missouri River at highway bridge at

Toston, Mont. ................. 33-36

main stem ........................ 31-37

near Wolf Point, Mont. ............. 37

Missouri River basin ................... 31-473

Moorcroft, Wyo., Belle Fourche River

below......................... 248-250

Moreau River at Bixby, S. Dak. ......... 228-233

at Promise, S. Dak. ............... 234

near Eagle Butte, S. Dak............ 234

Moreau River basin .................... 228-234

Mud Creek near Sweetwater, Nebr. ...... 366, 375

Muddy Creek near Pavillion, Wyo........ 137-140

near Shoshoni, Wyo. ............... 141-144

Muscrat Creek near Shoshoni, Wyo. ..... 75-76

N

Newcastle, Wyo., Beaver Creek near .... 244-247

New Leipzig, N. Dak., Cannonball River

near.......................... 213-216

Niobrara River at Meadville, Nebr. ...... 289, 291

near Cody, Nebr. .................. 278-281

near Gordon, Nebr................. 274-277

near Hay Springs, Nebr. ........ 288, 289, 291

near Norden, Nebr. ................ 289,291

near Sparks, Nebr. ................ 282-285

Niobrara River basin ................... 274-292

Nitrate................................ 11

North Fork Grand River near White Butte,

S. Dak. .................. 22E,226, 227

North Fork Solomon River at Kirwin,

Kans. ......................... 466-471

North Fork Wind River near Dubois, Wye. 185 

North Loup River at Brewster, Nebr. .... 366, 375

at Burwell, Nebr. .............. 366-367, 376

at Ord, Nebr. ..................... 367, 376

near Cotesfield, Nebr. ............. 367, 376

near St. Paul, Nebr. ............... 350-354

North Platte River at North Platte, Nebr. 359 

below Casper, Wyo................. 304-307

below Guernsey Reservoir, Wyo. .... 316-318
INDEX

Page 

North Platte River near Cassa, Wyo. .... 312-315

above Bedtick Creek near Douglas,

Wyo.......................... 308-311

near Goose Egg, Wyo............... 301-303

Norton, Kans., Prairie Dog Creek at.... 410-417

Nowater Creek, 4 miles south of Worland,

Wyo. ......................... 187

Nowood Creek at Manderson, Wyo. ...... 187

near Tensleep, Wyo................ 187

Ocean drain at Ocean Lake outlet near

Pavillion, Wyo............. 183,185-186

near Pavillion, Wyo................ 100-103

Odessa, Nebr., Platte River near....... 319

Oglala, S. Dak., White River near ...... 257-262

Orleans, Nebr., Republican River near.. 387 

Oxygen consumed...................... 12

Paradise Creek near Paradise, Kans. ... 442-447

Paradise, Kans., Paradise Creek near .. 442-447 

Pavillion Drain near Pavillion, Wyo...... 96-99

Pavillion, Wyo., Dewey drain near...... 110

Pavillion, Wyo., Dudley wasteway near.. 104-105 

Pavillion, Wyo., Fivemile Creek near... 77-80 

Pavillion, Wyo., Kellett drain near ..... 106-109

Pavillion, Wyo., Muddy Creek near ..... 137-140

Pavillion, Wyo., Ocean drain near...... 100-103

Pavillion, Wyo., Pavillion drain near.... 96-99

Pavillion, Wyo., power line wasteway

near.......................... 93-95

Percent sodium ....................... 14

Platte River at Brady, Nebr. ........... 359

near Ashland, Nebr. ............... 359

near Odessa, Nebr................. 319

near Overton, Nebr. ............... 362, 370

Platte River basin ..................... 301-378

Plum creek near Smithfield, Nebr. ...... 362, 370

Poison Creek near Shoshoni, Wyo........ 131-132

Ponca Creek at Anoka, Nebr. ........... 272-273

Ponca Creek basin..................... 272-273

Popo Agie River near Riverton, Wyo..... 71-74

Powder River at Anrada, Wyo........... 156-161

at Sussex, Wyo. ................... 152-155

near Locate, Mont. ................ 162-166

Power line wasteway near Pavillion, Wyo. 93-95 

Prairie Dog Creek at Norton, Kans. ..... 410-417

Prickly Pear Creek near Clancy, Mont... 38 

Prickly Pear Creek basin............... 38

Properties and characteristics of water. . 12-14 

Publications.......... ................ IE-16

R

Red River of the North basin............ 19-20

Red Willow Creek near Red Willow, Nebr. 392-397 

Red Willow, Nebr., Red Willow Creek

near.......................... 392-397

Republican River at Benkelman, Nebr.... 473

at Clay Center, Kans. .............. 472

at Milford, Kans................... 472

at Trenton, Nebr. ................. 382-386

near Hardy, Nebr.................. 388

near Orleans, Nebr. ............... 387

Richardton, N. Dak., Heart River near.. 208-212 

Riverdale, Nebr., Wood River near...... 330-333

Riverton, Wyo., Fivemile Creek near.... 81-85

Riverton, Wyo., Fivemile 76 drain near. Ill 

Riverton, Wyo., Lost Wells Butte

drain near.................... 115-117

Riverton, Wyo., Popo Agie River near .. 71-74 

Riverton, Wyo., Sand Gulch drain and

Wasteway near ................ 112-114

Riverton, Wyo., Wind River at.......... 46-49

Riverview, Nebr., Long Pine Creek near. 286-287 

Russell, Kans., Saline River near....... 430-435

ge Creek near Lovell, Wyo............ 184,188

Page

St. Michael, Nebr., South Loup River at . 346-349 

St. Paul, Nebr., Middle Loup River at... 341-345 

St. Paul, Nebr., North Loup River near. . 350-354 

St. Vrain Creek at mouth near Plattevil'e,

Colo. ......................... 360

Saline River at Tescott, Kans............ 439-441

near Russell, Kans. ................ 430-435

near Wilson, Kans. ................ 436-438

Sand Gulch drain and wasteway near

Riverton, W,o................. 112-114

Sand Gulch near Shoshoni, Wyo. ......... 122-125

Sappa Creek near Beaver City, Nebr. .... 400-404

near Oberlin, Kans. ................ 473

near Stamford, Nebr. .............. 405-409

Sediment.............................. 4-5

Shadehill, S. Dak.. Grand River at ...... 218-221

Shelby, Mont., Marias River near ....... 39-43

Sheyenne River at Sheyenne, N. Dak.. .... 20

Shoshone River at Byron. Wyo. .......... 188

Shoshoni, Wyo., Coleman drain near..... 118-121

Shoshoni, Wyo., Eagle drain near....... 126-128

Shoshoni, Wyo., Fivemile Creek near.... 86-92

Shoshoni, Wyo., lateral P-34.9

wasteway near................. 129

Shoshoni, Wyo., Lateral P-36. 8

wasteway near. ................ 130

Shoshoni, Wyo., Muddy Creek near ...... 141-144

Shoshoni, Wyo., Muscrat Creek near .... 75-76

Shoshoni, Wyo., Poison Creek near...... 131-132

Shoshoni, Wyo., Sand Gulch near ........ 122-125

Silica................................. 8

Slick Creek, 3| miles northeast of

Worland, Wyo.................. 187

Smoky Hill River near Ellis, Kans. ...... 425-429

Snake River near Burge, Nebr. ...... 2'>9, 291-292

Sodium and potassium .................. 10

Solomon River at Beloit, Kans. .......... 459-465

Souris River near Verendrye, N. Dak. ... 19

South Fork Grand River near Cash.

S. Dak. ....................... 222-224

South Fork Powder River near Kaycee,

Wyo. ......................... 149-151

South Fork Republican River near

Benkelman, Nebr............... 4'3

near Colo, -Kans. State line......... 389-391

South Fork Solomon River at Alton, Kans. 453-458 

South Heart, N. Dak., Heart River nea-.. 204-212 

South Loup River at St. Michael, Nebr.... 346-349

near Cumro, Nebr ......... 365-3«6, 374-375

South Platte River at Balzac, Colo. ...... 322

at Fort Lupton, Colo. .............. 359-360

at Julesburg, Colo. ................ 323-326

at North Platte, Nebr............... 360

near Kersey, Colo. ................ 321

Sparks, Nebr., Niobrara River near ..... 282-285

Specific conductance.................... 13

Spencer, Wyo., Lance Creek at ......... 240-243

Stamford, Nebr., Sappa Creek near.... . 405-409

Stream flow ........................... 17

Sulfate................................ 10

Suspended sediment .................... 4-5

Sussex, Wyo., Powder River at ......... 152-155

Sylvan Grove, Kans., Wolf Creek near . . 448-452

Temperature .......................... 5

Tenmile Creek near Helena, Mont. ...... 38

Tescott. Kans., Saline River at ......... 439-441

Thermopolis, Wyo., Bighorn River at.... 50-55

Thompson Creek at Riverton, Nebr....... 472

Tongue P.iver at Miles City, Mont........ 145-148

Toston, Mont., Missouri Kiver at ....... 33-36

Total acidity........................... 13

Trenton, Nebr., Republican River at..... 382-386

U

Upper Hanover Canal, 2\ miles east of

Worland, Wyo.................. 186

11 miles northeast of Worland. Wyo.. 186 

2| miles south of Worland, Wyo. .... 186

5i- miles south of Worland, Wyo. .... 186
Upper Hanover Canal, 1 mile southwest 

of Winchester, Wyo. ..........

Page 

186

Verdigre River at Verdigre, Nebr. ...... 290,292

Verendrye, N. Dak., Souris River near.. 19

W

White River near Kadoka, S. Dak........ 263-270

near Oacoma, S. Dak............... 271

near Oglala, S. Dak................ 257-262

White River basin ..................... 257-271

White Rock Creek northwest of Lovewell,

Kans. ........................ 418-424

Page 

Wiggins, Colo., Bijou Creek near....... 327-329

Wilson, Kans., Saline River near ....... 436-438

Wind River at Riverton, Wyo............ 46-49

near Burris, Wyo.................. 185

near Dubois, Wyo.................. 183

800 feet upstream from mouth of North 

Fork Wind River, near Dubois, 

Wyo.......................... 185

Wolf Creek near Sylvan Grove, Kans..... 448-452

Wood River near Riverdale, Nebr........ 330-333

Yellowstone River at Billings, Mont...... 183

at Miles City, Mont. ............... 45

near Sidney, Mont.. ................ 183

Yellowstone River basin................ 45-188

U. S. GOVERNMENT PRINTING OFFICE: 1955 O 32' 665