Surface Water Supply 

of Hawaii 

1955-56

Prepared under the direction of J. V. B. WELLS, Chief, Surface Water Branch 

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1449

Prepared in cooperation with the 

Territory of Hawaii

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1960
UNITED STATES DEPARTMENT OF THE INTERIOR 

FRED A. SEATON, Secretary

GEOLOGICAL SURVEY 

Thomas B. Nolan, Director

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

Washington 25, D.C. - Price 60 cents (paper cover)
PREFACE

This report was prepared by the Geological Survey in cooperation with the Territory of Hawaii by personnel of the Water 

Resources Division, C. G. Paulsen, chief, succeeded by L. B. 

Leopold, under the general direction of J. V. B. Wells, chief, 

Surface Water Branch, and B. J. Peterson, chief, Basic Records 

Section, succeeded by F. J. Flynn.

The data were collected and computed under the supervision 

of H. S. Leak, district engineer, Honolulu.

Ill

CONTENTS

Scope of work........................................................................ 1

Cooperation.......................................................................... 1

Division of work..................................................................... 1

Definition of terms and abbreviations................................................ 1

Downstream order of listing gaging stations.......................................... 2

Explanation of data.................................................................. 2

Accuracy of field data and computed results.......................................... 4

Publications......................................................................... 5

Records of discharge collected by agencies other than the Geological Survey.......... 5

Gaging-station records............................................................... 7

Island of Kauai 

Kawaikoi Stream (head of Waimea River) near Waimea............................... 7

Mohihi Stream at altitude 3,500 ft, near Waimea................................ 8

Kokee ditch near Waimea........................................................ 9

Waimea River at altitude 890 ft, near Waimea..................................... 10

Kekaha ditch at camp 1, near Waimea............................................ 11

Waimea River below Kekaha ditch intake, near Waimea.............................. 12

Waimea River near Waimea......................................................... 13

Makaweli River near Waimea..................................................... 14

Hanapepe River below Manuahl Stream, near Eleele................................. 15

South Fork Wailua River near Lihue............................................... 16

North Fork Wailua River:

North Wailua ditch near Lihue................................................ 17

Stable storm ditch near Lihue................................................ 18

North Fork Wailua River at altitude 650 ft, near Lihue......................... 19

Wailua ditch near Kapaa...................................................... 20

North Fork Wailua River near Kapaa............................................. 21

Kapaa River.- 

Makaleha Stream:

Makaleha ditch near Kealia................................................... 22

Kapahi ditch near Kealia....................................................... 23

Kapaa River at Kapahi ditch intake, near Kapaa................................... 24

Anahola River: 

Anahola ditch: 

Anahola ditch wasteway near Kealia........................................... 25

Anahola ditch above Kaneha Reservoir, near Kealia.............................. 26

Anahola River near Kealia........................................................ 27

Lower Anahola ditch near Kealia................................................ 28

Kilauea River:

Pohakuhono Stream: 

Kalihiwai ditch near Kilauea................................................. 29

Puu Ka Ele Stream: 

Ka Loko ditch near Kilauea................................................... 30

Puu Ka Ele ditch near Kilauea................................................ 31

Hanalei River: 

Hanalei tunnel outlet near Lihue............................................... 32

Hanalei River at altitude 625 ft, near Hanalei................................... 33

Discharge measurements at points other than gaging stations...................... 34

Island of Oahu

North Fork Kaukonahua Stream:

Kaukonahua ditch near Wahiawa.................................................. 35

North Fork Kaukonahua Stream near Wahiawa........................................ 36

South Fork Kaukonahua Stream near Wahiawa...................................... 37

South Fork Kaukonahua Stream above Wahiawa Reservoir, near Wahiawa............. 38

Poamoho Stream near Wahiawa.................................................... 39

Waikele Stream at Waipahu........................................................ 40

Pearl Harbor Springs at Waiawa, near Pearl City.................................. 41

Morikone pond outlet at Pearl City............................................. 42

Waiawa Stream near Pearl City.................................................... 43

Hawaiian Electric Co. tunnel at Waiau, near Pearl City........................... 44

Waimalu Stream near Aiea......................................................... 45

Pearl Harbor Springs at Kalauao, near Aiea....................................... 46

Kalauao Stream at Aiea........................................................... 47

North Halawa Stream near Aiea.................................................... 48

Halawa Stream near Aiea.......................................................... 51

Moanalua Stream near Honolulu.................................................... 52

Kalihi Stream near Honolulu...................................................... 53

Nuuanu Stream below reservoir 2 wasteway, near Honolulu.......................... 54

East Branch Manoa Stream near Honolulu........................................... 55

West Branch Manoa Stream near Honolulu......................................... 56

Manoa Stream:

Pukele Stream (head of Palolo Stream) near Honolulu............................ 57

Waiomao Stream above Pukele Stream,' near Honolulu............................ 58

Palolo Stream near Honolulu.................................................... 59

Maunawili Stream:

Maunawili ditch near Waimanalo................................................. 60

Haiku Stream (head of Heeia Stream) near Heeia................................... 62

lolekaa Stream mauka near Heeia................................................ 63

Kahaluu Stream near Heeia........................................................ 64

Waihee Stream near Heeia....................................................... 65

Waiahole tunnel at Waianu, near Waiahole......................................... 66

Waiahole tunnel wasteway at intake 31, near Waiahole........................... 67

V
VI CONTENTS

Gaglng-statlon records Continued

Island of Oahu Continued Page 

Walahole tunnel at north portal, near Walahole................................... 68

Walahole Stream at altitude 250 ft, near Walahole................................ 69

Punaluu Stream:

Punaluu ditch near Punaluu..................................................... 70

Punaluu Stream near Punaluu...................................................... 71

Discharge measurements at points other than gaging stations...................... 72

Island of Molokal 

Halawa Stream near Halawa........................................................ 74

Pulena Stream (head of Wallau Stream) near Wallau................................ 75

Walakeakua Stream near Wallau.................................................. 76

Pelekunu Stream near Pelekunu.................................................... 77

Lanlpunl Stream near Pelekunu.................................................. 78

Walkolu Stream below pipeline crossing, near Kalaupapa........................... 79

Walalala Springs near Kalae...................................................... 80

Kaunakakal Stream at Kaunakakal.................................................. 81

Kawela Stream:

Right Branch of East Pork Kawela Stream near Kamalo............................ 82

Punaula Stream near Pukoo........................................................ 83

Discharge measurements at points other than gaging stations...................... 84

Island of Maul

Oheo Stream below diversion dam, near Klpahulu................................... 85

Right Branch Kahalawe Stream near Klpahulu....................................... 86

Makaplpl Stream:

Makaplpl ditch near Nahlku..................................................... 87

Hanawl Stream near Nahlku........................................................ 88

Kapaula Stream near Nahlku........................................................ 89

Koolau ditch at Nahlku weir, near Nahlku......................................... 90

Walohue Stream near Nahlku....................................................... 91

West Koplllula Stream near Keanae................................................ 92

East Wallualkl Stream near Keanae................................................ 93

West Wallualkl Stream near Keanae................................................ 94

West Walluanul Stream near Keanae................................................ 95

East Walluanul Stream near Keanae.............................................. 96

Palauhulu Stream:

Taro patch feeder ditch at Keanae.............................................. 97

Koolau ditch near Keanae......................................................... 98

Honomanu Stream near Keanae...................................................... 99

Halpuaena Stream at Kula pipeline Intake, near Ollnda............................ 103

Kula diversion from Halpuaena Stream near Ollnda............................... 109

Halpuaena diversion ditch at Kolea Gulch, near Keanae.......................... 110

Halpuaena Stream above Spreckels ditch, near Huelo............................... Ill

Spreckels ditch at Halpuaena weir, near Huelo.................................... 112

Koolau ditch at Halpuaena, near Huelo............................................ 113

Puohokamoa Stream above Spreckels ditch, near Huelo.............................. 114

Manuel Luls ditch at Puohokamoa Gulch, near Huelo................................ 115

Walakamol Stream above reservoir at Kula pipeline Intake, near Ollnda............ 116

Walakamol Stream above Walloa ditch, near Huelo.................................. 118

Alo Stream near Huelo.......................................................... 119

Kaalea Stream near Huelo......................................................... 120

Oopuola Stream near Huelo........................................................ 121

Nallllllhaele Stream near Huelo.................................................. 122

Kallua Stream near Huelo......................................................... 123

Hoolawanul Stream near Huelo..................................................... 124

Hoolawallllll Stream near Huelo................................................ 125

Honopou Stream near Huelo........................................................ 126

Walloa ditch at Honopou, near Huelo.............................................. 127

New Hamakua ditch at Honopou, near Huelo......................................... 128

Old Hamakua ditch at Honopou, near Huelo......................................... 129

Lowrle ditch at Honopou Gulch, near Huelo........................................ 130

Halku ditch at Honopou Gulch, near Kallua........................................ 131

Kahakuloa Stream near Honokohau.................................................. 132

Honokohau Stream near Honokohau.................................................. 133

Honokowal Stream:

Honokowal ditch near Lahalna................................................... 134

Olowalu Stream:

Olowalu ditch near Olowalu..................................................... 135

Island of Hawaii 

Walakea Stream at middle flume house, near Mountain View......................... 136

Walluku River above Hllo Boarding School ditch Intake, near Hllo................. 137

Kapehu Stream: 

Kapehu ditch:

Kapehu ditch diversion near Hllo........................................... 138

Kapehu ditch near Hllo....................................................... 140

Wallllkahl Stream near Walmanu................................................... 141

Awlnl ditch at East Honokanelkl Gulch, near Nlulll............................... 142

East Honokanelkl Intake to Awlnl ditch at East Honokanelkl Gulch, near Nlulll.. 143 

Kohala ditch at Pololu, near Nlulll.............................................. 144

Kehena ditch near Kohala......................................................... 145

Walkoloa Stream near Kamuela..................................................... 146

Walkoloa Stream at Marine Dam, near Kamuela...................................... 147

Discharge measurements at points other than gaging stations...................... 148

Index................................................................................ 149
SURFACE WATER SUPPLY OP HAWAII, JULY 1, 1955 TO JUNE 30 , 1956

SCOPE OF WORK

This volume contains records of daily flow of streams and ditches at 124 gaging stations 

in the Territory of Hawaii during the year ending June 30, 1956. In addition, discharge 

measurements only have been made at many other points, and rather extensive studies of 

ground water have been made on all the inhabited islands.

Since the beginning of stream-gaging work in Hawaii, in 1910, records of flow of streams 

and ditches have been obtained at about 586 stations for periods ranging from a few months 

to 45 years. Also, hundreds of discharge measurements only have been made at points other 

than gaging stations. Most of the results of ground-water studies have been published in 

bulletins of the Territorial Division of Hydrography.

COOPERATION

The work during the year ending June 30, 1956, was done under cooperative agreement 

with the Territory of Hawaii through the commissioner of public lands. Assistance in 

collecting records was rendered also on the island of Kauai by the Kekaha Sugar Co. Ltd., 

the McBryde Sugar Co. Ltd. , the East Kauai Water Co. Ltd. , the Kilauea Sugar Co. Ltd. , and 

the Lihue Plantation Co. Ltd.; on the island of Oahu by the Waialua Agricultural Co. Ltd. 

and Waiahole Water Co. Ltd.; on the Islahd of Maul by the Pioneer Mill Co. Ltd., the East 

Maul Irrigation Co. Ltd., the Maul County Engineer, Maul County Board of Water Works, and 

Territory of Hawaii Board of Agriculture and Forestry; and on the island of Hawaii by the 

City of Hilo Water Works, the Kohala Ditch Co. Ltd., and the Olaa Sugar Co. Ltd.

Acknowledgment of records collected by individuals or corporations is made in connection with the description of each station for which such records were furnished.

DIVISION OF WORK

The stream-gaging work was done by the Water Resources Division of the Geological Survey under the direction of personnel shown in the preface.

Information of a more detailed nature than that published for most of the gaging stations given in this report Is on file In the district office, Room 225, Federal Building, 

Honolulu. Provisional records of discharge prior to publication, and other unpublished 

data concerning the gaging-station records may usually be obtained from the district 

office.

DEFINITION OF TERMS AND ABBREVIATIONS

The terms of streamflow and other hydrologic /Jata, as used in this report, are defined 

as follows:

Stage-discharge relation is the relation between gage height and the amount of water 

flowing in a channel, expressed as volume per unit of time.

Control designates a feature downstream from the gage that determines the stagedischarge relation at the gage. This feature may be a natural constriction of the channel, a long reach of the channel, or an artificial structure.
2 SURFACE WATER SUPPLY OP HAWAII, 19SS-56

The drainage area of a stream at a specified location is that area, measured in a horizontal plane, which is so enclosed by a topographic divide that direct surface runoff from 

precipitation normally would drain by gravity into the river above the specified point. 

Figures of drainage area given herein include all closed basins, or noncontributing areas, 

within the area unless otherwise noted.

Cubic foot per second (cfs) is the rate of discharge of a stream whose channel is 

1 square foot in cross-sectional area and whose average velocity is 1 foot per second.

Acre-foot is the quantity of water required to cover an acre to the depth of 1 foot and 

is equivalent to 43,560 cubic feet. The terra is commonly used in relation to storage for 

irrigation.

WSP is used as an abbreviation for "Water-Supply Paper" in reference to previously 

published reports.

In the Territory of Hawaii the unit most commonly used in measuring water is "million 

gallons." This is used with two meanings (1) to indicate a rate of flow and (2) to express an actual quantity of water. In the former sense "million gallons a day" is inferred, 1,000,000 gallons being taken as the unit of quantity and 24 hours as the unit of 

time. With this meaning the term is generally used in connection with pumping and irrigation. In the latter sense "million gallons" as an absolute quantity is used in the 

measurement of storage capacities of reservoirs.

The following convenient approximate relations exist between cubic feet per second , 

million gallons a day, and acre-feet: 1 cubic foot per second flowing 24 hours equals 

about 2 acre-feet; 1,000,000 gallons equals about 3 acre-feet; and 1,000,000 gallons a day 

equals about 1.55 cubic feet per second.

DOWNSTREAM ORDER OF LISTING GAGING STATIONS

Beginning with the report for the year ending June 30, I960, the order of listing 

gaging-station records was changed. Proceeding in a downstream direction along the main 

stem, all stations on a tributary entering above a main-stem station are listed before 

that station. If a tributary enters between two main-stem stations, it is listed between 

them. Tributary streams are indicated by indention. This downstream order and the system 

of indention show which gaging stations are on tributaries between any two stations on a 

main stem.

The order of listing used in previous reports listed first all stations on the main 

stem from headwaters toward mouth, then all stations on the uppermost tributary to the 

main stem from the tributary's source to mouth.

EXPLANATION OF DATA

The base data collected at gaging stations consist of records of stage and measurements 

of discharge. In addition, observations of factors affecting the stage-discharge relation, 

weather records, and other information are used to supplement base data in determining 

the daily flow. All records of stage are obtained from water-stage recorders that give 

continuous records of fluctuations. Measurements of discharge are made with a current 

meter by the general methods adopted by the Geological Survey on the basis of experience 

in stream gaging since 1888. These methods are described in Water-Supply Paper 888 and 

are also outlined in standard textbooks on the measurement of stream discharge. Occasionally discharge is determined from a weir or rating flume, using standard formulas.
EXPLANATION OF DATA 3

Rating tables giving the discharge for any stage are prepared from stage-discharge relation curves defined by discharge measurements. If extensions to the rating curves are 

necessary to define the extremes of discharge, they are made on the basis of indirect determinations of peak discharge (such as slope-area or contracted-opening determinations, 

computation of flow over dams or weirs, and by other methods), velocity-area studies, and 

logarithmic plotting. For several stations the high-water ratings have been developed by 

the use of models. The application of the daily mean gage height to those rating tables 

gives the daily mean discharge, from which the monthly and the yearly mean discharge are 

computed. If the stage-discharge relation is subject to change because of frequent or 

continual change in the physical features that form the control, the daily mean discharge 

is determined by the shifting-control method, in which correction factors based on individual discharge measurements and notes by engineers and observers are used in applying 

the gage heights to the rating tables. If the stage-discharge relation for a station is 

temporarily changed by the presence of aquatic growth or debris on the control, the daily 

mean discharge is computed by what is essentially the shifting-control method.

The data herein presented generally comprise a description of the station, a skeleton 

rating table, and a table showing the daily discharge and monthly and yearly discharge and 

runoff of the stream.

The description of the station gives the location, drainage area, records available, 

type and history of gages, average discharge, extremes of discharge, general remarks, and 

notations of revisions of the previously published record. The location of the gaging 

station and the drainage area are obtained from the most accurate maps available. Under 

"Gage" are given the type of gage currently in use and the datum of the present gage above 

mean sea level, and a condensed history of the types, locations, and datums of previous 

gages used during the period of records available. Under "Average discharge" is given the 

average discharge for the number of years indicated. It is not given for stations having 

fewer than five complete years of record or for stations where changes in water development during the period of record cause the figure to have little significance. Under 

"Extremes" are given the maximum discharge and gage height and the minimum discharge. In 

the first paragraph, the data given are for the complete current water year unless otherwise specified. In the second paragraph, the data given are for the periods of record 

within the calendar year dates in the heading (not necessarily those for the complete 

years indicated by the heading dates). Reliable information concerning major floods that 

have occurred outside the period of record are given in the third or last paragraph under 

"Extremes." Unless otherwise qualified, the maximum discharge corresponds to the crest 

stage obtained by use of a water-stage recorder. If the maximum gage height did not occur 

at the same time as the maximum discharge, it is given separately. Information pertaining 

to the accuracy of the records and conditions which affect the natural flow at the gaging 

station is given under "Remarks."

Previously published records of some stations have been found to be in error on the 

basis of data or information later obtained. Revisions of such records are usually published along with the current records in one of the annual reports. In order to make it 

easier to find such revised records, a paragraph headed "Revisions (fiscal years)" has 

been added to the description of all stations for which revised records have been published. Listed therein are all the reports in which revisions have been published, each 

followed by the fiscal years for which figures are revised in that report. In listing 

the fiscal years only one number is given; for Instance, 1933 stands for the fiscal year 

July 1, 1932, to June 30, 1933. If no daily, monthly, or annual figures of discharge are
4 SURFACE WATER SUPPLY OF HAWAII, 1955-56

concerned in the revision, that fact is brought out by notations after the year dates as 

follows: "(M)" means that only the instantaneous maximum discharge was revised; "(m)" 

that only the instantaneous minimum was revised; and "(P)" that only peak discharges were 

revised. If the drainage area has been revised, the report in which the revised figure 

was first published is given.

Skeleton rating tables are published for all stations except for ditch or spring 

stations.

The daily table gives, in general, the discharge corresponding to the daily mean gage 

height. For stations subject to sudden or rapid diurnal fluctuation, the daily mean gage 

height may not indicate the true daily mean discharge, which must be obtained by averaging 

the discharge for parts of the day.

Records of daily discharge are published on the basis of Hawaiian standard time.

In the table of daily discharge, the figures for the maximum and the minimum day are 

underlined. If the figure is repeated, it is underlined only on the first day of its 

occurrence.

In the monthly summary below the daily table, the line headed "Total" gives the sum of 

the daily figures in million gallons. The mean for the month is given both in terms of 

million gallons a day (line headed "mgd") and in cubic feet per second (line headed "cfs"). 

The line headed "Ac-ft" gives the runoff for the month in acre-feet.

In the yearly summary below the monthly summary, the figures of maximum are the maximum 

daily discharges, not the momentary discharges when the water was at crest stage. Likewise, the minimums in this summary are the minimum daily discharges.

Peak discharges and the times of their occurrence and corresponding gage heights of most 

stations are listed below the table of daily and monthly discharge. All independent peaks 

above the selected base are given. The base discharge, which is given in parentheses, is 

selected so that an average of about three peaks a year will be presented. Peak discharges 

are not published for canals, ditches, springs, or for any stream for which the peaks are 

subject to substantial control by man.

Footnotes to the table of daily discharge indicate periods when discharge was computed 

or estimated by unusual or special methods during periods of no gage-height record or by 

other effects that reduce the degree of accuracy of the records.

ACCURACY OF FIELD DATA AND COMPUTED RESULTS

The accuracy of streamflow data depends primarily on (1) the stability of the stage - 

discharge relation or, if the control is unstable, the frequency of discharge measurements, 

and (2) the accuracy of observations of stage, measurements of discharge, and interpretation of records.

The station description states the degree of accuracy of the records. "Excellent" indicates that, in general, the error in the daily records is believed to be less than 5 percent; "good," less than 10 percent; "fair," less than 15 percent; and "poor," probably 

more than 15 percent. The records of monthly and yearly mean discharge and runoff are, in 

general, more nearly accurate than the daily records.

Computations are carried to not more than three significant figures, except that 

monthly and yearly total runoff (million gallons and acre-feet) above 10,000 are carried 

to four significant figures.
SURFACE WATER SUPPLY OP HAWAII, 1955-56 5

PUBLICATIONS

The following table lists, by years and numbers, the papers on the surface-water supply 

of Hawaii published during the period 1903-56 and, used In conjunction with the list of 

stations maintained, which Is given In Water-Supply Paper 795, provides a convenient Index 

for finding the data for any station. Except as Indicated, the year or years covered by 

each report begin July 1 and end on June 30. The data for any particular station will be 

found In the reports covering the years during which that station was maintained, unless, 

owing to undeveloped rating curves, publication was postponed. Occasionally data are revised and republlshed In later papers. Discharge measurements made during any year at 

points other than regular gaging stations are Included In the data published for that year. 

Numbers of water-supply papers containing data on the surface water supply of Hawaii, 1905-56

Year

1903

1909-llt

1912t

1913t

1913-15

1915-16

1916-17

1917-18

1918-19

1919-20

WSP

 77

318

336

373

430

445

465

485

515

516

Year

1920-21

1921-22

1922-23

1923-24

1924-25

1925-26

1926-27

1927-28

1928-29

1929-30

WSP

535

555

575

595

615

635

655

675

695

710

Year

1930-31

1931-32

1932-33

1933-34

1934-35

1935-36

1936-37

1937-38

1938-39

1939-40

WSP

725

740

755

770

795

815

835

865

885

905

Year

1940-41

1941-42

1942-43

1943-44

1944-45

1945-46

1946-47

1947-48

1948-49

1949-50

WSP

935

965

985

1015

1045

1065

1095

1125

1155

1185

Year

1950-51

1951-52

1952-53

1953-54

1954-55

1955-56

WSP

1219

1249

1289

1349

1399

1449

This paper, entitled "Water resources of Molokal," by Waldemar Llndgren, contains data on both 

the surface and ground-water supplies of the Island named.

t Calendar years. Data for the last half of the calendar year 1913 appears not only In WaterSupply Paper 373 but also In Water-supply Paper 430, the first of the reports covering a year ending 

June 30.

A summary of records of flow In streams and ditches In the Territory of Hawaii was published in 1939 by the Territorial Planning Board. This report, entitled "Surface-water 

resources of the Territory of Hawaii, 1901-38," gives, by gaging stations for the periods 

of record, (1) monthly-discharge tables, which show for each month the maximum, minimum, 

and mean daily discharge and the total discharge, and (2) duration-discharge tables. 

Nearly all available records of flow in the Territory up to December 1938 were considered 

in making the summary. Some of these records are not contained In publications of the 

Geological Survey; some are revisions of records published in the Survey's water-supply 

papers.

RECORDS OF DISCHARGE COLLECTED B? AGENCIES OTHER THAN THE GEOLOGICAL SURVEY

The following table lists the gaging stations In the Territory of Hawaii at which records of discharge were collected during the fiscal year July 1955 to June 1956 by agencies 

other than the Geological Survey. The records for these stations are not contained In the 

publications of the Geological Survey, and, except as indicated, have not been published 

elsewhere.

Records of discharge collected by agencies other than the Geological Survey 

ISLAND OF KAUAI

Stream

East Lawal storm ditch..

Hanapepe field ditch.... 

Hanapepe Stream .........

Kealla River ............

Llhue lower ditch. ......

wahlawa main stream. ....

Branch . 

West Lawal ditch. .......

Location

Near Government Road, near Kalaheo.

Kllauea.

Below Hanapepe River Intake, near 

Eleele. 

At tidewater, near Eleele ..........

near Koloa. 

1 mile west of Kaneha Reservoir and 

5-J miles northwest of Kealla.

miles west of Llhue.

Below Intake, near Lihue ...........

Above Alexander Reservoir, near 

Kalaheo .

Near camp 12, near Kalaheo. ........

Period

1924-56

1923-56

1925-56

1924-56 

1924-56

1936-56

1949-56

1925-56

1924-56

1924-56

Operated by

McBryde Sugar Co.

McBryde Sugar Co.

Do. 

Do.

Llhue Plantation Co .

Llhue Plantation Co .

McBryde Sugar Co .

Do.
SURFACE WATER SUPPLY OP HAWAII, 1955-56

Records of discharge collected by agencies other than the Geological Survey Continued

ISLAND OP OAHU

Stream

Alewa Heights Spring....

Helemano ditch. .........

Nuuanu tunnel 3 .........

Location

Below reservoir 3 ..................

feet 

About 3 miles below upper Helemano 

Reservoir.

feet.

feet.

above third siphon from Government Road.

feet.

At overflow, In upper Nuuanu Valley

At altitude 535 feet, near Alea....

Period

1932-56*

1933-56

1931-56*

1912-56*

1947-56

Operated by

Board of Water Supply, City 

and County of Honolulu.

Walalua Agricultural Co.

and County of Honolulu".

and County of Honolulu.

Do.

Do.

Published In biennial reports of Honolulu Sewer & Water Commission and of Honolulu Board of 

Water Supply.

ISLAND OP MAUI (WEST MAUI)

Everett ditch. .......... 

Honokohau tunnel ........

Launlupoko ditch. .......

North Walehu Stream. .... 

South Walkapu ditch. ....

Spreckels ditch. ........ 

Ukumehame ditch. ........

Walhee ditch.... ........

Below Intake, near Walluku. ........ 

At outlet of tunnel, at Mahlnahlna 

weir.

luku.

above Lahaina.

Lahainaluna .

At outlet, above Lahaina. ..........

Near end of Walehu Camp road, near 

Walluku. 

Above second lateral, near reservoir 1, near Walkapu. 

Below Intake, near Walhee .......... 

At outlet In Ukumehame Gulch, near 

Olowalu. 

Below Intake, near Walhee. .........

1935-56 

1917-56

1931-56

1921-56

1922-56 

1933-56

1931-56 

1931-56

1931-56

Walluku Sugar Co. 

Pioneer Mill Co.

Do.

Do.

Do. 

Do.

Do. 

Pioneer Mill Co.

Walluku Sugar Co.

ISLAND OP MAUI (EAST MAUI)

Hanawi Below Government Road, near Nahlku. 1927-32, 

1947-56

Eas t Maul Irrigation Co.

ISLAND OP HAWAII

Hlonamoa Gulch. .........

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

Lower Hamalcua ditch. .... 

Moaula Gulch. ...........

Pololu Inlet 1..........

Pololu Inlet 3 .......... 

Pololu Inlet 5.. ........

Puwalole Stream. ........ 

Walapuka Stream. ........

Walpunalau Stream. ......

Below all development tunnels, 

near Pahala.

Pahala.

Nlulll. 

At Nlulll weir, near Nlulll ........

At main weir, near Kukuihaele ...... 

Below all development tunnels, near 

Pahala .

3,500 feet. 

At Pololu, near Nlulll .............

Nlulll . 

In Opaepllau Gulch, above Kohala 

ditch, near Nlulll. 

In Nlulll Gulch, above Kohala 

ditch, near Nlulll.

ditch, near Nlulll. 

Above Kohala ditch, near Halawa.... 

Above Kohala ditch, near Nlulll....

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

1926-56

1917-56t 

"1905~56

1921-56t 

1929-56

1929-56

1937-56 

1937-56

1937-56 

1929-56

1929-56

Hawaiian Agricultural Co.

Do.

Do. 

Hawaiian Agricultural Co.

Kohala Ditch Co.

Do. 

Do.

Do. 

Do.

Do.

t Records for some earlier years published In water-supply papers of Geological Survey.
GAGING-STATION RECORDS

ISLAND OF KAUAI

Kawaikoi Stream near Waimea

Location. Lat 22"08"00" 

northeast of Waimea. long 159°37'15", on left bank at old trail crossing, 12.5 miles

Drainage area. 4.1 sq mi.

Records available. April 1909 to December 1916, July 1919 to June 1956.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 3,420 ft (by barometer). Prior to May 26, 1910, staff gage at site 300 ft downstream at different datum.

Average discharge. 37 years (1919-56), 21.7 mgd (33.6 cfs).

Extremes. Maximum discharge during year, 2,650 mgd (4,100 cfs) Nov. 11 (gage height, 

9.96 ft), from rating curve extended above 300 mgd as explained below; minimum, 

2.85 mgd (4.41 cfs) Nov. 7.

1909-16, 1919-56: Maximum discharge, 6,900 mgd (10,700 cfs) Dec. 18, 1916 (gage 

height, 15.2 ft), from rating curve extended above 300 mgd on basis of slope-area 

determinations at gage heights 12.12 and 13.43 ft; minimum, 0.74 mgd (1.15 cfs) 

Sept. 21, 22, 1953.

Remarks. Records good.

1920 ~21 ' WSP 1185: -17 (M), 1920-38 (M),

Bating tables, fiscal year 1955-56 (gage height. In feet, and discharge, 

in million gallons a day)

July 1 to Feb. 25

2.0

2.1 

2.4 

2.7 

3.0

2.5

3.7

9.4

18.5

31

50

3.6 

4.0 

4.5 

5.0 

5.5 

6.0

141

241

355

500

670

Feb. 26 to June 30

2.1 3.4

2.3 6.6.

2.5 11.2

2.7 17.8

3.0 31

Note. Same as 

preceding table 

above 3.0 ft.

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

4.5

8.1

9.7

4.8

12.6

16.1

8.8

6.2

4.2

 3.45

3.2 

3735

23.5

38.5

74

34

23.5

38

12.8

.14.2

8.1

6.1

5.1

6.4

8.7

5.5

7.3

17.0

6.8

7.3

5.0

426.80

13.8

21.4

1,310

Aug.

4.3

4.0

1875

8.0

4.8

7.3

5.9

16.0

22

29

16.0 

7.0

14.2

18.5

24.5

16.8

*16.9

46

28.5

11.9

9.2

6.4

5.5

15.0

IT19. 1

20.5

29.5

24

14.2

17.4

557.9

18.0

27.9

1,710

Sept.

15.0

22

10.9

7.9

6.8

6.2

5.7

5.3

5.0

10.7

10.2 

5.9

6.8

12.0

7.4

10.5

6.4

4.8

4^3

5.9

39.5

1575

13.8

26.5

10.2

6.6

7.0

6.8

6.4

5.5

312.5

10.4

16.1

959

Oct.

 \ 

5.0

12.4

52, 5

32.5

21

15.7

14.4

14.4

9.0

7.0

6.1 

5.5

5.1

4.8

4.7

7.9

*14.4

6.8

5.3

6.2

5.3

5.0

5.1

6.8

6.8

6.1

4.8

4.5

4*1

5.3

5.7

290.4

9.37

14.5

891

Nov.

4.5

3.85

3.6

3.45

3.1

3.0

3.0

129

120

40

183 

238

40

21.5

19.6

19.6

93

53

31.5

33.5

34

32.5

17.4

14.7

11.6

10.2

9.2

8.7

8.1

7.2

1J.99.80

40'. 0

61.9

3,680

Dec.

6.8

7.2

7.0

6.6

5.9

5.3

5.0

4.8

4.7

4.7

15.5 

7.0

5.1

4.5

4.2

4.0

3.85

3.7

185

^5

179

62

19.6

14.1

11.6

10.2

9.0

8.3

*14.1

30

15.5

757.25

24.4

37.8

2,320

Jan.

9.9

8.3

8.1

7.4

7.0

6.1

5.5

5.1

5.0

4.8

100 

294

115

30.5

158

45

22

16.4

13.4

11.4

10.4

9.4

8.7

12.0

45

33

25.5

12.8

10.8

31

14.6

1,086.1

35.0

54.2

3,330

Feb.

10.6

19.3

13.2

9.2

16.0

159

42

23.5

*12.9

27.5

19.4 

150

141

86

32

513

490

198

86

62

43

27

32.5

64

300

383

60

43

26

3,089.1

107

166

9,480

Mar.

28

20

16.8

14.6

13.4

13.7

12.8

18.7

34.5

27.5

37.5 

24

14.3

17.4

14.3

40

35.5

14.3

16.1

32

37

35

27.5

48

16.4

12.8

11.2

10.2

*9.9

9.1

35

697.5

22.5

34.8

2,140

Apr.

41

11.5

9.9

9.1

8.0

9.6

18.9

17.4

27

23.5

12.1 

15.0

19.5

14.6

18.6

13.8

8.9

9.5

120

43

18.8

13.4

*9.9

8.6

7.8

7.4

12.6

16.9

8.6

9.2

564.1

18.8

29.1

1,730

May

8.9

7.8

8.4

7.0

20

22

22

18.7

17.2

8.6

8.4 

7.6

5.9

5.5

5.5

6.4

5.2

4.7

4.8

16.6

16.4

46

11.8

6.8

5.5

4.8

4.6

4.9

15.9

16.9

25

369.8

11.9

18.4

1,130

June

8.2

7.4

7.6

23.5

19.8

18.2

15.4

9.1

7.6

26

31.5 

2875

21

31.5

21

13.1

9.4

7.4

6.4

5.5

8.5

18.3

21

17.8

12.2

6.8

5.5

4.7

4.4

5.0

422.3

14.1

21.8

1,300

Calendar year 1955: Max 

Fiscal year 1955-56 : Max

634

513

Mln 

Mln

2.75 

3.0

Mean(mgd) 25.7 

Mean(mgd) 26.7

Mean(c 

Mean(c

fs l 

fs)

39.8

41.3

Ac-ft 28,800 

Ac-ft 29,980

Peak discharge (base, 1,300 mgd). Nov. 11 (11 p.m.) 2,650 mgd (4,100 cfs), 9.96 ft; Feb. 16 

(2:50 p.m.) 2,110 mgd (5,260 efs), 9.10 ft; Feb. 26 (12 p.m.) 1,600 mgd (2,480 efs), 8.15 ft. 

* Discharge measurement made on this day.
ISLAND OP KAUAI

Mohihi Stream at altitude 3,500 ft, near Waimea

Location. Lat 22°07'05", long 159°36'15", on left bank at upper trail crossing, 3.8 miles 

northeast of confluence of Waiahulu and Poomau Streams and 12 miles northeast of 

Waimea.

Drainage area. 1.6 sq mi.

Records available.--June 1920 to October 1926, October 1936 to June 1956. April 1909 to 

December 1911 (fragmentary), July 1947 to June 1952, published as Mohihi Stream near 

Waimea; records 1909-11 at site 2 miles downstream not equivalent owing to inflow.

Gage. Water-stage recorder. Altitude of gage is 3,500 ft (from topographic map). 

Average discharge.--25 years (1920-26, 1937-56), 5.21 mgd (8.06 cfs).

Extremes. Maximum discharge during year, 475 mgd (735 cfs) Feb. 17 (gage height, 5.16 ft), 

from rating curve extended above 21 mgd; minimum, 0.50 mgd (0.77 cfs) Nov. 6.

1920-26, 1936-56: Maximum discharge, 1,250 mgd (1,930 cfs) Aug. 15, 1950 (gage 

height, 7.23 ft), from rating curve extended above 21 mgd; minimum, 0.02 mgd (0.03 cfs) 

Sept. 22, 23, 1953.

Remarks. Records good except those above 21 which are poor.

Rating tables, fiscal year 1955-56 (gage height. In feet, and discharge, 

In million gallons a day)

July 1 to Sept. 2

1.1 

1.3

Sept. 3 to June 30

2.1 13.9

1.2

1.3

l.E

0.37

.64

.99

1.51

3.2

7.2

2.1 

2.5 

3.0 

3.5 

4.0 

4.5

166

268

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Total

Mean:

rage

cfs

Ac-ft

July

1.08

.98

.98

.93

.85

.98

1.27

1.32

.98

.78

.71

771

2.2

5.2

13.6

8.9

4.5

7.2

2.75

2.15

1.65

1.27

1.13

1.08

.98

.98

1.08

4.5

2.5 

3.15

1 59 * 

77.98

2.52

3.90

239

Aug.

1.32

1.13

8.5

3.2

1.59

2.2

1.96

2.65

4.5

4.1

3.95

2.0

1.65

4.1

4.1

4.1

*3.65

11.2

7.3

4.4

3.15

2.1

1.59

1.53

11.0

5.2

4.5

6.8

7.0 

3.5

3.8

127.77

4.12

6.37

392

Sept.

3.6

4.4

2.4

1.57

1.27

1.07

.91

.85

.81

.81

.78

.74

.78

.85

.85

.88

.85

.71

.64

764

1.16

2.95

2.5

6. 3

2755

1.22

.99

.88

.78

.67

45.41

1.51

2.34

139

Oct.

0.64 37§~

7.3

771

3.55

2.9

2.4

2.6

1.70

1.17

.99

.88

.78

.71

.64

1.19

*7.0

1.86

1.12

.95

.85

.78

.74

.71

.71

.67

.64

.67

.81

1.44

1.17

58.57

1.89

2.92

180

Nov.

0.85

.74

.64

.56

^53

.61

.58

49

45

18.1

39

108

21.5

9.1

9.3

10.0

28

27.5

14.8

10.0

8.4

11.9

5.3

4.2

3.4

2.8

2.4

2.1

1.93

1.70

437.94

14.6

22.6

1,340

Dec.

1.57

2.0

2.25

1.93

1.57

1.33

1.17

1.12

1.07

1.03

1.45

1.33

1.12

.99

.91

.88

.85

.81

46

34

69

35.5

9.2

5.6

4.3

3.4

2.8

2.4

2.15

9.7

253.23

8.17

12.6

777

Jan.

3.1

2.5

2.15

2.0

1.86

1.57

1.39

1.33

1.22

1.17

28

100

44

14.3

33.5

21

9.1

.6.1

4.7

3.85

3.3

2.8

2.5

*2.4

7.2

17.1

15.0

5.8

4.3

15.1

6.3

364.64

11.8

18.3

1,120

Feb.

3.95

3.65

3.65

2.8

278

16.9

9.1

6.3

3.4

4.7

5.5

25

29.5

24

16.1

114

~53 169

26.5

17.3

13.4

9.1

10.6

36.5

82

130

25

20.5

11.3

875.55

30.2

46.7

2,690

Mar.

14.0

8.7

6.9

5.6

5.0

*5.5

5.2

6.7

8.6

6.4

5.3

4.6

3.65

3.2

3.0

4.7

10.9

4.3

3.0

3.1

4.6

5.9

4.7

7.9

4.6

3.85

3.75

3.2

279

7.2

169.45

5.47

8.46

520

Apr.

15.2

4.4

3.4

2.9

2.4

2.25

3.0

3.95

4.8

3.75

2.8

2.4

3.1

3.4

3.0

3.0

2.15

1.86

12.1

11.5

5.8

4.1

2.6

2.0

*1.78

1.57

2. 9

6.0

2.8

2. 15

123.06

4.10

6.34

378

May

1.93

1.70

1.57

1.45

1.63

2.35

3.2

4.8

4.8

2.4

3.45

2.6

1.78

1.45

1.45

1.78

1.51

1.22

1.12

T745

2.35

4.8

4.0

2.15

1.57

1.27

1.12

1.39

37T

5.0

75.99

2.45

3.79

233

June

2.8

2.1

2.15

3.4

4.2

4.3

4.2

3.65

2.6

2.95

5.1

9.4

4.1

4.8

6.8

4.6

4.2

2.6

2.1

1.63

1.51

2.65

3.7

4.8

3.0

2.15

1.70

1.45

1.27

1.17

101.08

3.37

5.21

310

Calendar year 1955; Max 108 Mln 0.53 Mean(mgd) 6.01 Mean(cfs) 9.30 Ac-ft 6,730

Fiscal year 1955-56: Max 169 Mln 0.53 Mean(mgd) 7.41 Mean(cfs) 11.5 Ac-ft 8,320

eak discharge (b 

440 mgd 681 

235 mgd 364 

(681 cfs , 5.13 ft.

 56! Max 169 Mln 0.53 Mean(mgd) 7.41 Mean(cfs) 11.5 Ac-ft 8,320

[base, 200 mgd). Nov. 8 (2:30 p.m.) 204 mgd (316 cfs), 4.22 ft; Nov. 11 (11 p.m.) 

:fs), 5.13 ftj Dec. 19 (6 p.m.) 246 ragd (381 cfs). 4.40 ft; Jan. 11 (11:30 p.m.) 

!fs), 4.35 ft; Feb. 17 (10 a.m.) 475 mgd (735 cfs), 5.16 ft; Feb. 26 (4 a.m.) 440 mg

L3 ft.

Discharge measurement made on this day.
ISLAND OF KAUAI 9 

Kokee ditch near Waimea -

Location. Lat 22°06'25", long 159°40'45", on left bank 1,000 ft west of road and 

10.5 miles north of Waimea.

Records available.--September 1926 to June 1956.

Gage. Water-stage recorder and suppressed weir. Altitude of gage is 3,310 ft (by barometer) .

Average di s cnarge.--2 9 years (1927-56), 16.0 mgd (24.8 cfs).

Extremes. 1926-56: Maximum dally discharge, 68 mgd (105 cfs) Dec. 2, 1929, Mar. 4, 

1933; no flow occasionally.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Kokee ditch diverts water at altitude 3,400 ft from all streams tributary to Waimea 

River west of Mohihl Stream for irrigation near Kekaha. Plow regulated by headgates.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

Day

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

Mean:

mgc

Cf£

Ac-ft

July

9.1

12.7

7.9

8.6

19.6

14.0

10.9

7.9

6.7

6.0

5.8

22

29.5

55.5

32.5

25

34

17.5

18.8

12.0

9.4

8.3

7.9 

12.1

8.3

8.3

20

10.3

10.3 

7.9

446.5

14.4

22.3

1,370

Aug.

6.5

1776

12.6

7.6

8.8

9.0

13.9

24

25.5

21.5

10.3

14.4

20

20.5

22

18.0

35.5

29.5

16.3

12.5

9.9

8.4

10.7 

39

26

23

29.5

29

17.5 

21

567.0

18.3

28.3

1,740

Sept.

24.5

15.5

11.1

9.8

8.8

8.1

7.5

7.5

9.7

14.4

8.4

9.2

13.3

10.3

12.4

8.8

7.0

6.5

775

18.2

24.5

20.5

30 

T7.0

10.7

9.9

9.6

8.8

7.7

376.0

12.5

19.3

1,150

Oct.

12.2

29.5

34

22.5

20

17.5

18.8

12.4

9.8

8.4

7.9

7.4

6.8

6.5

9.0

*19.6

9.2

8.1

8.4

7.7

7.7

7.4

8.4 

8.4

8.3

6.8

6.7

6.7

10.0 

8.8

362.3

11.7

18.1

1,110

Nov.

6.3

5.8

5.5

5.2

5.2

5.0

2875

55

46

41

8.4

5.6

15.7

12.8

16.8

22.5

17.5

11.3

14.7

15.2

19.2

8.5

8.1 

17.1

21

20

18.8

17.5

16.3

497.7

16.6

25.7

1,530

Dec.

15.1 

16.3

16.3

15.1

14.2

13.0

12.6

12.2

 11.4

10.7

19.4

13.7

11.5

10.5

7.8

7.1

9.2

8.8

22.5

42

40

20.5

6.3

iTTI 

12.2

11.1

10.1

9.8

12.0

16 . 2 

11.0

450.0

14.5

22.4

1,380

Jan.

7.9 

8.1

14.8

18.8

17.5

16.3

14.9

14.0

13.7

13.3

28

15.9

6.7

13.0

16.8

15.1

15.0

12.6

11.3

15.6

16.3

14.2

18.4

29.5 

22.5

14.9

9.8

11.2

13.0

20 

13.3

472.4

15.2

23.5

1,450

F3b.

17.4 

22.5

17.5

14.4

30

25

23

21

12

15

22

40

33

15

15

18

12

11

11

19

23

24

24

25 

30

35

12

14

20

6OO.8

20.7

32.0

1,840

Mar.

23 

23

21

20

23

33

19

16

20

18

25

15

20

26

27

33

32

25

26

36

45

25

20

35 

30

26

24

22

21

21 

23.5

773.5

25.0

38.7

2,370

Apr.

34.5 

18.0

21

20

18.8

18.8

25.5

25

31

29.5

21

22.5

25

22.5

25

22.5

17.5

16.3

37

40

28

22.5

18.8

16.3 

14.9

14.0

T?74

26

16.3

16.3

683.9

22.8

35.3

2,100

May

15.1 

14.4

14.0

12.2

20

25.5

22.5

24

24

15.1

13.7

13.5

11.5

10.7

10.7

11.3

10.3

9.4

9.2

17.4

17.5

35^5

18.8

12.4 

10.5

9.6

9^0

9.2

*18.8

15.5 

28.5

489.8

15.8

24.4

1,500

June

14.0 

12.0

11.5

22.5

22.5

21

20

14.6

11.8

23

24

32.5

23.5

30

27.5

17.5

14.6

11.8

10.3

9.4

10.6

20

21

21 

17.1

10.7

9.0

8.1

7.5

8.1

507.1

16.9

26.1

1,560

Calendar year 1955 . Max 55 Min 4.3 Mean(mgd) 17.2 Mean(cfs) 26.6 Ac-ft 19,260

Fiscal year 1955-56; Max 55 Min 5.0 Mean(mgd) 17. O Mean(cfs) 26. 3 Ac-ft 19,1OO

* Discharge measurement made on this day. 

Note. No gage-height record Feb. 5 to Ma 

stations and Kekaha Sugar Co. records.

[ar. 30; discharge estimated on basis of records for nearby
10 ISLAND OF KAUAI

Waimea River at altitude ft, near Waimea

Location.--Lat 22°04'45", long 159°39'15", on right bank in Waimea Canyon, 0.5 mile upstream from confluence with Koaie Stream and 8.8 miles north of Waimea.

Drainage area. 20.0 sq mi.

Records available.--February to October 1916, October 1917 to June 1918, May 1925 to June 

1956.Prior to July 1, 1952, published as Waiahulu Stream near Waimea.

Gage.--Water-stage recorder. Altitude of gage is 890 ft (by barometer). Prior to 

May 25, 1925, at datum 1.55 ft lower.

Average discharge.--28 years (1925-48, 1951-56), 30.7 mgd (47.5 cfs).

Extremes.--Maximum discharge during year, 7,440 mgd ^11,500 cfs) Nov. 11 (gage height, 

11.45 ft), from rating curve extended above 320 mgd on basis of slope-area determination at gage height 11.45 ft; minimum daily, 8.8 mgd (13.6 cfs) Oct. 14, 15.

1916, 1917-18, 1925-56: Maximum discharge, 18,100 mgd (28,000 cfs) Aug. 17, 1950 

(gage height, 18.3 ft, from floodmarks), from rating curve extended above 320 mgd; minimum, 5.2 mgd (8.0 cfs) Nov. 4, 1927.

Remarks. Records good except those for periods of no gage-height record, which are poor. 

Xokee ditch diverts water above station for irrigation near Kekaha (see preceding

Revisions (fiscal years). WSP 1095: 1928(M).

Rating tables, fiscal year 1955-56 (gage height. In feet, and discharge, 

In million gallons a day)

July 1 to Nov. 11 Nov. 12 to June 3O

2.0

2.1 

2.3 

2.5 

3.0

7.0

9.6

17.0

27

65

3.5 130

4.0 222

4.5 350

5.0 530

1.7 

1.9 

2.2 

2.5 

3.0

15.8

30.5

52

106

3.5 182

4.0 289

5.0 590

6.0 1,050

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

11.0

10.6

10.3

10.3

10.3

14.6

11.6

11.3

10.6

10.3

9.9

9.9

11.1

25

25

32

18.0

33.5

13.4

11.3

10.6

10.3

9.9

9.6

T^

9.6

9.6

11.9

12.0

12.0

10.6

465.7

15.0

23.2

1,430

Aug.

9.9

9.6

15.9

15.0

10.6

9.6

10.6

9.9

13.3

13.7

16.3

11.0

9.9

11.0

13.9

17.9

11.3

33

30.5

13.4

12.7

11.0

*10.3

9.9

81

23

12.7

17.1

23.5

12 3 12 .'o

511.8

16.5

25.5

1,570

Sept.

12.0

12.5

12.3

10.3

9.9

9.6

9.3

9.3

9.6

9.6

10.3

9.3

9.1

9.1

9.1

9.1

9.1

9.1

9.3

9.6

37

22

16.2

29.5

17.6

11.6

10.3

9.9

9.6

9.6

370.8

12.4

19.2

1,140

Oct.

9.3

9.6

19.0

25

14.5

12.7

11.3

11.3

11.0

9.9

9.6

9.3

9.1

8.8

8.8

12.0

17.3

12.0

10.3

*9.6

9.6

9.6

9.3

9.3

9.1

9.1

9.1

9.6

10.3

24, 5

12 3

362.2

11.7

18.1

1,110

Nov.

10.6

9.9

9.6

9.3

9.1

9.1

9.1

307

319

103

*504

650

90

75

70

65

200

100

80

80

75

70

40

22

15

12

11

10

9.8

9.6

2,984.1

99.5

154

9,160

Dec.

9.5

9.3

9.2

9.1

9.0

9.0

9.0

9.0

8.9

8T¥

18

13 *12

11.4

12.0

11.7

11.4

11.4

339

272

375

164

36.5

21.5

15.4

11.7

11

10

15

33

18

1,513.9

48.8

75.5

4,650

Jan.

14

12

11

10

10

9.5

9.2

9.1

9.0

9.0

200

750

250

70

300

80

40

25

19

15

12

11

10

14

55

37

30

15

14

33

16

2,098.8

67.7

105

6,440

Feb.

12

21

15

11

19

250

60

24

11.7

31.5

22

239

390

171

63

810

917

460

269

168

121

76

65

133

525

961

207

127

71

6,250.2

216

334

19,180

Mar.

60

43

34

28

25

25

23

30

42

32.5

28

31.5

20

19.6

19.2

24.5

35.5

18.7

17.9

leTf

25.5

25.5

19.6

33

19.2

18.3

*18.7

19.2

18.3

17.9

21

812.3

26.2

40.5

2,490

Apr.

88

20.5

17.5

16.6

16.2

15.8

16.6

17.5

19.8

19.6

16.2

15.4

16.2

16.2

15.8

15.4

14.7

14.3

116

49

21

16.2

14.7

13.5

13-1

13.1

18.6

24.5

16.2

14.7

702.9

23.4

36.2

2,160

May

13.9

13.5

13.1

13.1

13.1

18.2

15.0

18.9

16.6

14.3

13.9

14.3

13.1

13.1

12.8

12.8

12.8

12.4

12.0

127^

13.5

28.5

16.9

13.5

12.8

12.0

12.0

12.8

16.2

14.7

454.8

14.7

22.7

1,400

June

14.7

13.1

12.8

14.9

15.4

15.0

15.0

14.3

13.1

15.4

19.3

31.5

15.4

16.9

21.5

15.0

15.0

13.1

12.4

12.0

12.0

13.1

14.9

16.2

13.9

12.8

12.4

12.0

12.0

JJLl

446.8

14.9

23.1

1,370

Calendar year 1955. Max 1,100 Mln 8.8 Mean(mgd) 43.2 Mean(cfs) 66.8 Ac-ft 48,390

Fiscal year 1955-56: Max 961 Mln 8.8 Mean(mgd) 46.4 Mean(ofs) 71.8 Ac-ft 52,100

1,200 mgd). Nov. 8 (3 p.m.) 1,240 mgd (1,920 cfs), 6.35 ft; Nov. 11 (11:3O 

.,500 cfs), 11.45 ft; Dec. 19 (5:30 p.m.) 1,530 mgd (2,370 cfs), 6.85 ft; 

llscharge unknown); Feb. 17 (11 a.m.) 2,30O mgd (3,560 cfs), 7.55 ft; Feb. 26 

(4.860 cfs). 8.40 ft.

Peak discharge (base, 

p.m.) 7,440 mgd (11,-

Jan. 12 (time and dls 0- /, --- 

(5 a.m.) 3,140 mgd (4,860 cfs), 8.40 ft.

Note. No gage-height record Nov. 12 to Dec. 13, Dec. 27 to Feb. 7; discharge estimated on basis 

of records for Kawalkol and Waimea stations.
ISLAND OP KAUAI 11

Kekaha ditch at camp 1, near Waimea

Location. Lat 22°02 I 35", long 159°38'30", on right bank 0.2 mile downstream from lower 

intake and 6.2 miles northeast of Waimea.

Records available. November 1907 to June 1956.

Gage. Water-stage recorder. Altitude of gage is 520 ft (by barometer). Prior to July 12, 

1921, staff gages at several sites within 1 mile of present site at various daturas.

Average discharge.--37 years (1918-24, 1925-56), 35.7 mgd (55.2 cfs).

Extremes.--1907-56: Maximum daily discharge, 67 mgd (104 cfs) Jan. 6, Mar. 3, 6, 7, 17, 

18, 24-26, 29-31, 1921; no flow at times.

Remarks. Records good. Ditch diverts water from Waimea River 1 mile downstream from confluence with Waialae River. Flow regulated by headgates. Water used for irrigation in 

vicinity of Kekaha.

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

32

32

43

34.5

32

36.5

36.5

32

30

28.

28

28

39

51

51

51

51

51

51

44

39

34.5

32

34.5

34.5

41

41

51

48

51 

46

1,234.0

39.8

61.6

3,790

Aug.

46

36.5

44

51

39

44

44

39

51

48

51

41

36.5

48

51

51

51

51

51

51

51

41

35.5

35.5

51

51

51

51

51

48 

51

1,442.0

46.5

71.9

4,430

Sept.

48

51

48

41

39

34.5

32

32

32

32

32

30

32

32

32

34.5

36.5

30

26.5 3T~

36.5

46

48

46

48

37

31.5

34.5

32

32

1,097.5

36.6

56.6

3,370

Oct.

30

41

51

sT

48

51

46

51

46

36.5

34.5

32

30

30

30

36

46

46

36.5

*33.5

32

30

30

30

30

34.5

32

32

38.5

46 

48

1,189.0

38.4

59.4

3,650

Nov.

39

34.5

32

30

30

30

30

38.5

39

36.5

36

24.5

30

35

39

39

39

39

39

39

39

36.5

36.5

36.5

36.5

39

39

36.5

39

39

1,076.5

35.9

55.5

3,300

Dec.

41

44

41

41

48

46

44

41

41

39

41

*41

36.5

36.5

36.5

34.5

34.5

32

31

35.5

41

44

41

41

41

41

41

41

41

41 

41

1,239.0

40.0

61.9

3,800

Jan.

41

41

41

41

41

41

44

44

41

41

41

36

42

41

41

41

41

41

41

41

41

44

11.9

.05

1.40

2.5

0

0

0

4.1

0

926.95

29.9

46.3

2,840

Feb.

0

0

0

0

0

0

*0

1.12

.18

10.8

32

36

41

44

44

41

44

44

41

27.5

32

51

53

31.5

23

26

34.5

34.5

32

724.10

25.0

38.7

2,220

Mar.

35.5

32

5J,

27.5

45

53

53

37.5

32

34.5

34.5

48

51

53

53

53

53

53

53

53

56

53

53

53

53

53

53

53

38.5

30 

28

1,383.1

44.6

69.0

4,240

Apr.

41

51

51

51

51

45

39

33

SB- 53

si

53

48

39

43

51

51

46

49

48

39

43

51

46

44

41

41

39

43

51

1,395

46.5

71.9

4,280

May

45

45

44

41

41

43

51

53

53

51

46

39

41

44

51

51

44

40

39.5

39.5

46

48

51

46

41

40

38.5

44

53

51 

*50

1,410.5

45.5

70.4

4,330

June

43

41

46

53

53

53

53

48

41

48

53

51

53

53

47

39

45

51

48

41

41

47

39.5

42

51

44

41

41

39

36 . 5

1,382.0

46.1

71.3

4,240

Calendar year 1955 . Max 51 Min 24.5 Mean(mgd) 42.3 Mean(cfs) 65.4 Ac-ft 47,400

Fiscal year 1955-56: Max 56 Mln 0 Mean(mgd) 39.6 Mean(cfs) 61.3 Ac-ft 44,490

* Discharge measurement or observation of no flow made on this day.

527571 O -59 -2
12 ISLAND OF KAUAI

Walmea River below Kekaha ditch Intake, near Walmea

Location. Lat 22"02'40", long 159"38'35", on right bank In Walmea Canyon, 500 ft downstream from Kekaha ditch lower Intake and 6.5 miles northeast of Walmea.

Drainage area. 45.0 sq ml.

Records available.--July 1921 to December 1955 (discontinued).

Gage.--Water-stage recorder. Altitude of gage Is 490 ft (by barometer). Prior to May 7, 

1926, at datum 3.85 ft higher.

Average discharge.--29 years (1925-47, 1948-55), 49.9 mgd (77.2 cfs).

Extremes.--Maximum discharge during period July to December, 10,700 mgd (16,600 cfs) 

Nov. 11 (gage height, 23.7 ft), from rating curve extended above 500 mgd on basis of 

slope-area determination of peak flow; no flow at times.

1921-55:. Maximum discharge, 20,000 mgd (30,900 cfs) Aug. 17, 1950 (gage height, 

about 25 ft, from floodmarks), from rating curve extended above 500 mgd by test on 

model of station site; no flow at times.

Remarks, Records fair except those below 20 mgd and those after Nov. 12, which are poor. 

KoEee and Kekaha ditches divert practically all flow below medium stages for Irrigation 

near Walmea and Kekaha.

Revisions (fiscal years). WSP 740: 1921-31. WSP 1125: 1947.

Discharge, in million gallons a day, July to December 1955

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

Mean:

mgc

cfs

Ac-ft

July

0

0

.1

0

0

0

0

0

0

0

0

0 

0

36

191

105

22

88

1.2

0

0

0

0

0

0

.8

12.3

86

10.1

19.0 

3.5

575.0

18.5

28.6

1,760

Aug.

2.4

0

123

11.4

0

14.2

.4

0

13.9

4.7

14.0

0 

0

34.5

31.5

34.5

.5

60

60

4.7

4.7

0

0

0

254

41

1.6

13.2

40

1.5 

0

765.7

24.7

38.2

2,350

Sept.

0

6.4

1.5

0

O

o

0

0

0

0

0

0 

0

o

0

0

0

0

.8

7.3

101

15.2

5.3

67

10.1

.6

.7

0

0

0

215.9

7.20

11.1

663

Oct.

0

3¥

31

78

6.3

0

0

0

0

O

0

0 

0

0

O

9.9

110

.2

0

0

0

0

0

0

0

0

0

0

1.3

~T.6 113 

385.3

12.4

19.2

1,180

Nov.

0

0

0

0

0

0

0

807

960

310

*778

2.800 

600

220

160

110

460

320

160

140

130

190

80

65

46

34

28

24

18

14

8,454

282

436

25,940

Dec.

12

28

60

30

12

5.0

1.0

.6

.5

.4

.4

.4 

.2

0

0

0

0

0

1,100

1,000

1.500

650

140

80

65

50

42

40

38

110

65

4,830.5

156

241

14,820

Jan. Feb. Mar. Apr. May June

Calendar year 1955. Max 2,800 Mln 0 Mean(mgd) 80.6 Mean(cfs) 125 Ac-ft 90,270 

Fiscal year 1955-56: Max - Mln - Mean(mgd) - Mean(ofs) - Ac-ft -

Peak discharge (base, 5,000 mgd). Nov. 11 (10:30 p.m.) 10,700 mgd (16,600 cfs), 23.7 ftj Dec. 19 

(5 p.m.) about 5,400 mgd (8,400 cfs), 17.7 ft.

* Discharge measurement made on this day.
ISLAND OP KAUAI 13

Walmea River near Walmea

Location. Lat 21 C 58'55", long 159°39'50", on right bank 1.2 miles upstream from confluence 

with Makawell River and 1.8 miles north of Walmea.

Drainage area. 57.8 sq ml.

Records available. July 1910 to October 1919, November 1943 to June 1956.

Gage. Water-stage recorder. Altitude of gage is 25 ft (by hand levels from estuary at 

confluence with Makawell River). Prior to Oct. 5, 1911, staff gage at site 1 mile downstream at different datum. Oct. 5, 1911, to June 30, 1918, staff gage at present site 

at different datum.

Average discharge.--12 years (1944-56), 81.6 mgd (126 cfs).

Extremes. Maximum discharge during year, 17,100 mgd (26,500 cfs) Nov. 11 (gage height, 

15.91 ft), from rating curve extended above 3,300 mgd as explained below; minimum, 

0.61 mgd (0.94 cfs) Oct. 25.

1943-56: Maximum discharge, 24,000 mgd (37,100 cfs) Feb. 7, 1949 (gage height, 

19.3 ft), from rating curve extended above 3,300 mgd on basis of slope-area determinations at gage heights 10.28, 13.6, and 18.7 ft; minimum, less than 0.01 mgd (0.02 cfs) 

Sept. 27, 1948.

Remarks. Records good except those below 10 mgd, which are poor, 

most of low flow for irrigation of sugarcane.

Several ditches divert

Rating tables, fiscal year 1955-56 (gage height. In feet, and discharge, In 

million gallons a day)

July 1 to Nov. 11 Nov. 12 to June 3O

2.7

2.8

2.9

3.0

3.1 

3.3

0.7O 

2.O 

4.4 

8.0 

13.0 

28.5

3.5 

4.0 

4.5 

5.0 

6.0 

7.0

51

145

298

535

1,200

2,150

3.0

3.1

3.2

3.3 

3.5 

3.7 

4.O 

4.2

2.85

5.4

9.6

15.8

31.5

52

95

135

4.5 

5.0 

5.5 

6.0 

7.0 

8.0 

9.0

210

385

620

940

1,700

2,650

3,800

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

Day

1

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

26 

27

28

29

30 

31

Total

Mean:

mgd

cfs

Ac-ft

July

2.O

1.65

3.35

3.7

1.65

2.O

2.6

3.O5

1.35

1.35

l.OO

TToo

1.20

11.8

178

99

44

81

21.5

4.8

3.3

3.05

3.05

3.55

3.55

3.6 

6.9

86

16.6

34.5 

8.5

638.60

2O. 6

31.9

1,960

Aug.

17.2

4.8

82

37

6.6

12.4

15.4

4.2

18.1

15.9

32

9.5

4.4

19.8

*37

55

10.5

53

65

21

18.8

6.9

3.8

2.8

190 

75 

15.7

24

45

19.1 

9.0

930.9

30.0

46.4

2,860

Sept.

9.0

9.3

20

7.3

7.6

4.2

2.0

1.85 272~

3.05

3.3

3.05

2.8

2.4

2.6

2.2

2.8

2.6

2.2

6.2

91

52

24

66

44

10.0 

1O.O

6.2

4.2

3.8

4O7.85

13.6

21. 0

1,250

Oct.

3.55

19.2

45

70

30

11.0

6.9

5.5

6.9

3.05

2.2

1.85

1.65

1.65

*1.50

6.1

120

14.4

3.05

2.0

1.65

1.65

1.65

1.85

1.35 

1.85

2.2

3.9

136

24

532. SO

17.2

26.6

1,640

Calendar year 1955: Max 3,71O Mln 

Fiscal year 1955-56: Max 3,710 Mln

Nov.

7.6

5.5

4.4

3.8

4,2

5.1

2._8

886

1,O6O

298

1,29O

5.710

669

235

184

139

489

348

177

163

152

215

*97

80

61

51 

44

41

36

32.5

10,49O. 9

350

542

32,20O

Dec.

30

50

76

46

27

17.2

11.5

8.5

9.6

11.5

10.8

8.5

6.1

8.1

9.0

9.0

7.7

7.7

1,230

1,220

1.560

756

241

160

124

10O 

82

75

78

133

6,277.2

202

313

19,26O

Jan.

82

71

67

51

46

40

34.5

3O.5

28

26^5

226

2.480

17160"

414

656

625

232

*140

102

82

71

62

72

79

197

4O9 

393

147

117

382 

203

8,725.5

281

435

26,78O

Feb.

138

109

100

87

85

258

133

106

81

93

1O6

419

831

508

286

2,780

2,950

1,430

608

325

240

160

166

675

1,610

2.99O

468

240

18,677

644

996

57,320

Mar.

301

205

158

124

87

76

79

111

133

113

85

69

48

40

35.5

33.5

101

77

41

28

35

49

31.5

75

46

66

57

38

26.5

3575

60

2,464.5

79.5

123

7,56O

Apr.

123

31.5

18.7

14.6

10.8

8.7

15.2

18.7

33.5

36.5

22

11.5

16.5

24.5

18.7

18.7

10.8

8.1

73

*93

46

30

1O.9

H

6.9 

22

84

27

11.5

860.5

28.7

44.4

2,64O

May

8.5

6.9

6.1

5.7

5.7

10.9

8.5

36.5

21

11.2

39.5

26

12.1

6.9

*8.4

15.5

6.5

5.1

4.8

4.6

5.4

10.9

21

6.5

5.1

4.1 

4.6

4.6

88

IS. 8

28

447.6

14.4

22.3

1,37O

June

14.0

10.2

9.6

22

28

24

18.7

18.1

11.8

10.8

30

68

27.5

37.5

12.

54

40

12.7

8.1

5.1

4-3

9.2

28

42

15.8

8.1 

6.1

5.7

5.4

4.8

649.5

21.6

33.4

1,990

l.OO Mean(mgd) 95.4 Mean(cfs) 148 Ac-ft 106,900 

Fiscal year 1955-56: Max 3,710 Mln 1.00 1.00 Mean(mgd) Mean(mgd) 140 140 Mean(cfs) Mean(cfs) 217 217 Ac-ft Ac-ft 156,800 156,800

Peak~discharge (base, 5,6OO mgd). Nov. 11 (ll:3O p.m.) 17.10O mgd (26,5OO cfs), 15.91 ft; Dec. 19 

(7 p.m.) 5,650 mgd (8,740 cfs), 10.33 ftj Feb. 17 (l:3O p.m.) 6,250 mgd (9,67O cfs), 10.68 ftj 

Feb. 26 (8 a.m.) 7,38O mgd (11,400 cfs), 11.42 ft.

* Discharge measurement made on this day.
14 ISLAND OF KAUAI

Makaweli River near Waimea

Location. Lat 21°58 '15", long 159°38'55", on left bank 0.7 mile upstream from mouth,

I.9 miles northeast of Waimea, and 3.8 miles northwest of Makaweli.

Drainage area. 25.0 sq ml.

Records available.--October 1911 to June 1917, July 1943 to June 1956.

Gage.--Water-stage recorder. Altitude of gage Is 30 ft (by hand levels from estuary at 

confluence with Waimea River). Oct. 6, 1911, to June 30, 1917, staff gage at site 

0.2 mile downstream at different datum.

Average discharge . 17 years (1912-17, 1944-56), 60.6 mgd (93.8 cfs).

Extremes. Maximum discharge during year, 7,450 mgd (11,500 cfs) Nov. 11 (gage height,

10.34 ft), from rating curve extended above 1,300 mgd as explained below; minimum dally, 

5.5 mgd (8.5 cfs) July 11.

1943-56: Maximum discharge, 8,800 mgd (13,600 cfs) Jan. 19, 1952 (gage height,

II.19 ft), from rating curve extended above 1,300 mgd on basis of slope-area determination at gage height 9.46 ft; minimum daily, 2.8 mgd (4.3 cfs) July 19, 20, 1951.

Remarks. Records fair except those for periods of no gage-height record,'which are poor. 

Olokele ditch diverts all low water from Olokele Stream 9 miles above station for irrigation near Makaweli.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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 

Mean:

mgc

cfs

Ac-ft

July

9.4

21

15.4

13.0

11.2

39.5

a9.5

a8.5

a6.5

36.0

35.5

14.2

19.8

45

188

121

51

97

22

19.0

13.5

10.4

11.7

13.0

11.7

51

67

130

149

44 

64

1,287.8

41.5

64.2

3,950

Aug.

23.5

13.5

258

31.5

16.2

99

16.2

22

33

41

34

16.2

*14.2

73

105

46

16.2

25.5

66

78

26

13.5

27 11.7

222

52

29

37

41

25.5 

22

1,534.7

49.5

76.6

4,710

Sept.

19.0

47

16.2

13.5

13.5

11.7

9.0

9.0

8.7

9.0

9.4

a9.0

38.0

a7.5

a7.0

24.5

9.0

aS.O

a7.5

10.8

66

3S

25.5

47

19.0

11.2

9.0

aS.O

a7.5

a!2

497.5

16.6

25.7

1,530

Oct.

a9.0

64

29

68

16.2

16.2

17.4

16.2

12.6

a9.0

*a8.5

7.6

a6.5

l^TS

8.3

59

96

19.0

13.5

11.7

9.9

9.4

9.0

8.7

15.3

13.9

9.4

11.7

32.5

155 

29

811.1

26.2

40.5

2,490

Calendsr year 1955: Msx 1,790 Min 

Fiscal year 1955-56: Max 2,340 Min

Nov.

19.0

13.5

12.6

11.2

10.4

12.6

10.4

411

521

204

643

1.790

298

a270

3250

3220

a700

a550

a300

a230

a450

3290

*a280

114

60

51

a45

341

338

335

7,880.7

263

407

24,180

Dec.

a32

130

a!20

a40

a 30

a25

a21

a!9

a!8

a!7

a!5

a!5

314

313

a!2

all

alO

a9.5

887 

755

990

399

158

110

85

a55

a40

a35

a29

*171

79

4,344.5

140

217

13,330

Jan.

44

36

335

a32

a29

326

324

323

a22

a.21

470

"416 1.040

144

196

174

85

62

53

44

36

29.5

29.5

29.5

580

596

404

110

97

352

124

5,363.5

173

268

16,460

Feb.

85

62

44

44

44

53

44

*36

42~ 29.5

48

165

238

370

258

2.540

2,340

1,420

526

158

110

85

291

1,080

1,580

1,850

*841

492

250

-

14,505.5

500

774

44,520

Mar.

525

25T

134

97

62

53

53

106

85

55

53

a40

a30

a25

a35

a37

81

36

a29

a35

a38

*58

a25

88

93

257

135

66

38.5

50 

45

2,663.5

85.9

133

8,170

Apr.

40

325

a21

a!8

a!6

a!4

313

all

63

36

a25

36

a28

320

a35

a50

318

321

a20

a25

a20

aj.7

a!4

a!2

all

alO

55

68

32T

a!8

761

25.4

39.3

2,340

May

a!5

a!3

a!2

311

310

315

160

73

a30

321

194

36

325

94

*86

325

a!7

a!4

a!2

a20

all

a!2

a50

a!4

all

alO

a!4

63

177

29.5

48

1,302.5

42.0

65.0

4,000

June

321

a21

36

84

65

50

48

41

a25

63

60

82

36

44

53

87

44

a50

a23

a22

a28

37

53

53

a25

a20

a30

a20

a!8

ail

1,236

41.2

63.7

3,790

5.5 Mean(mgd) 68.9 Mean(cfs) 107 Ac-ft 77,150 

5.5 Mean(mgd) 115 Mean(cfs) 178 Ac-ft 129,500

Peak discharge (base, 1,30O mgd). Nov. 11 (11 p.m.) 7,450 mgd (11,500 cfs), 10.34 ft; Dec. 19 

(7 p.m.) 3,550 mgd (5,490 cfs), 7.49 ft; Jan. 11 (11:30 p.m.) 3,100 mgd (4,8oO cfs), 6.53 ft; 

Pet. 16 (7 p.m.) 5,370 mgd (8.31O cfs), 8.56 ft; Feb. 26 (12:30 p.m.) 3,750 mgd (5,800 cfs),

7.19 ft.

* Discharge measurement made on this day.

a No gage-height records discharge estimated on basis of records for Hanapepe River.
ISLAND OF KAUAI 15

Hanapepe River below Manuahi Stream, near Eleele

Location. Lat 21°S7'20", long 159°33'15", on left bank just downstream from Manuahi 

Stream, 4 miles northeast of Eleele.

Drainage area. 18.8 sq mi.

Records available.--May 1917 to January 1921, December 1926 to June 1956. Prior to July 

1952, published as "at Koula, near Eleele." August 1910 to December 1916, at site half 

a mile upstream; records not equivalent due to inflow.

Gage. Water-stage recorder. Altitude of gage is 150 ft (by barometer). Prior to Dec. 15, 

1926, staff gage and Dec. 16, 1926, to June 30, 1951, water-stage recorder, at same 

site at datum 1.00 ft higher.

Average discharge.--32 years (1917-20, 1927-56), 55.5 mgd (85.9 cfs).

Extremes. Maximum discharge during year, 6,360 mgd (9,840 cfs) Feb. 16 (gage height, 

10.31 ft); minimum, 5.1 mgd (7.9 cfs) July 9.

1910-21, 1926-56: Maximum discharge, 10,400 mgd (16,100 cfs) Dec. 17, 1949 (gage 

height, 11.74 ft), from rating curve extended above 2,400 mgd by test on model of 

station site; minimum, 3.3 mgd (5.1 cfs) May 21, 1954.

Remarks. Records good. Hanapepe ditch diverts water from river 3 miles above station for 

irrigation in vicinity of Makaweli.

Revisions (fiscal years). WSP 740: 1931.

Rating table, fiscal year 1955-56 (gage height, In feet, and discharge, 

In million gallons a day)

2.0

5.3 

7.6

H.5

32

57

90 

132

2.5 

3.0 

3.5 

4.0 

5.0 

6.0

228

355

520

710

1,260

1,930

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

rage

cfs

Ac-ft

July

6.4

19.8

12.9

6.2

6.2

24.5

5.8

6.8

5.3

5.3

5.5

6.3 

7.2

24

123

95

63 

74

16.5

10.3

8.2

6.9

6.2

6.4

6.2

31.5

77

69

272

69

68

1,144.4

36.9

57.1

3,510

Aug.

19.6

9.7

~SJ 345

14.5

59

10.2

12.8

21.5

44

17.6

9.0 

66~ 8.0

96

32

11.4 

15.9

*54

 190

59

13.7

9.1

33

176

42

25.5

33

39

23.5

13. 6

1,540.6

49.7

7S.9

4,730

Sept.

10.3

39

10.2

10.0

8.5

8.8

9.5

12.9

10.6

8.8

10.9

8.2 

8.2

7.6

6.9

14.4

7.4 

6.9

8.9

11.8

30

93

35.5

47

14.6

9.4

7.9

7.4

6.9

25

500.5

16.7

25.8

1,540

Oct.

14.0

47

37.5

87

27.5

15.0

15.5

18.1

16.5

9.7

*9.9

8.2 

6.9

6.' 9

93

52 

12.0

9.1

7.9

7.4

6.9

6.9

31.5

45

9.8

7.4

13.2

63

~31 305

1,028.9

33.2

51.4

3,160

Nov.

31.5

10.6

9.1

8.2

7.9

9.4

7.9

487

336

118

470

~267 1.390 

*238

172

157

660 

468

246

196

364

244

264

177

117

90

84

51

32

17.5

6,730.1

224

347

20, 650

Dec.

18.0

104

100

32

18.9

16.5

15.0

13.7

12.9

12.2

11.4

11.0 

10.0

9.4

9.4

779" 7.9

8.2

520

374

554

160

58

40

30

22.5

18.5

17.0

15.5

*34.5

35

2,297.4

74.1

115

7,050

Jan.

16.8

17.1

14.5

20

14.5

12.9

11.8

11.4

11.4

11.0

188

582 

168

48

36

36.5

21.5 

18.0

15.5

14.5

13.3

13.3

12.9

26

342

349

159

51

128

271

69

2,703,9

87.2

135

8,300

Feb.

34.5

24.5

19.5

17.5

21

19.8

14.5

*12.7

69 12.6

27

41

113

245

140

1,430

1.630

1,110

229

111

66

43

205

762

892

1,020

744

340

197

-

9,590.6

331

512

29,430

Mar.

344

167

99

71

53

51

37

73

42

28

23

20.5 

19.0

18.0

23

54

67 

22.5

18.4

26

32

39.5

18.9

70

102

243

137

81

46

83

46

2,154.8

69.5

108

6,610

Apr.

33.5

23

17.0

16.0

15.0

*13.7

13.3

12.9

32.5

21

14.1

17.2 

13.3

11.8

23

16.9

12.2 

14.6

11.8

11.0

11.0

10.6

10.3

lo.o

9.7

9.7

48

25.5

13.3

11.4

503.3

16.8

26.0

1,540

May

10.6

10.3

10.0

9.7

10.4

15.5

162

100

28.5

31.5

~4T 183

25.5

99

125

38.5

19.2 

14.1

13.4

17.2

11.8

13.3

22.5

19.2

12.2

11.0

16.8

167

154

31.5 

47

1,470.7

47.4

73.3

4,510

June

20.5

17.6

24.5

66

91

65

76

*47

34.5

74

76

71 

46

52

42

78

41 

33

20.5

18.9

35.5

48

67

56

25.5

19.0

48

18.9

14.1

15.7

1,340.2

44.7

69.2

4,110

Calendar year 1955; Max 1,39O Mln 5,3 Mean(mgd) 52.7 Mean(cfs) 81.5 Ac-ft 59,070

Fiscal year 1955-56: Max 1,630 Mln 5.3 Mean(mgd) 84.7 Mean(cfs) 131 Ac-ft 95,140

igd).--Nov. 12 (11:30 a.m.) 4,680 mgd (7,240 cfs), 8.84 ftj Dec. 19 

:fs), 6.48 ft; Jan. 11 (11 p.m.) 2,440 mgd (3,780 cfs). 6.57 ftj Feb. 16 

:fs), 10.31 ft; Feb. 25 (ll p.m.) 2,530 mgd (3,910 cfs), 6.74 ft.

Peak discharge (base, 2,3OO mgd 

(5 p.m.) 2,350 mgd (3,640 of: 

(2 p.m.) 6,360 mgd (9,840 c ~

Discharge measurement made on this day.
16 ISLAND OF KAUAI

South Fork Wailua River near Lihue

Location.--Lat 22°02'10", long 159°22'55", on right bank 0.3 mile upstream from Wailua 

Palls and 5 miles north of Lihue.

Drainage area. 22.4 sq mi.

Records available. December 1911 to June 1956.

Gage. Water-stage recorder. Altitude of gage is 230 ft (by barometer). Prior to 

Nov. 18, 1918, at site 0.3 mile upstream at different datum.

Average discharge. 34 years (1921-24, 1925-56), 66.8 mgd (103 cfs).

Extremes. Maximum discharge during year, 30,200 mgd (46,700 cfs) Nov. 12 (gage height, 

11.52 ft), from rating curve extended above 4,200 mgd by logarithmic plotting; minimum, 

2.7 mgd (4.2 cfs), July 11, 12, 25.

1911-56: Maximum discharge, that of Nov. 12, 1955; minimum, 1.09 mgd (1.69 cfs) 

Sept. 21, 1953.

Remarks.--Records good. Several ditches divert about 20 mgd for irrigation of cane lands 

above station.

Revisions (fiscal years).--WSF 1249: 1941-47(N) , 1948-5l(P).

Rating table, fiscal year 1955-56 (gage height, In feet, and discharge, 

In million gallons a day)

1.0 

1.2 

1.4 

1.7 

2.0 

2.5

2.45

3.2

5.2

8.4

13.3

25.5

47

111

3.0 

3.5 

4.0 

4.5 

5.0 

6.0 

7.0

225

395

640

950

1,400

2,790

4,910

£. o a. J.J. 

Discharge, In million gallons a day, fiscal year July 1955 to Jfune 1956

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

Mean:

mgc

cfs

Ac-ft

July

3.45

5.55

5.55

5.2

3.1

116

9.6

5.85

5.4

3.05

2.75

2775

3.05

3.3

42

36 

35

59

4.9

5.65

3.55

5.1

2.9

2.9

2.8

8.9

15.4

52

186 

RRDO

55

701.70

22.6

55.0

2,150

Aug.

26.5

4.5

301

18.4

5.5

51

24

13.9

6.8

9.9

6.8

4.2

475

106

88

26.5 

5.2

5.0

57

547

222

51

9.1

*5.9

88

38

38.5

42

33.5

6.1

4.2

1,849.8

59.7

92.4

5,680

Sept.

3.85

9.4

6.3

10.4

35.5

5.8

5.55

3.2

5.2

5.0

5.2

5.65

3.05

2.9

2.8

3.05 

2.8

2.75 278-

5.2

4.6

13.2

34.5

1475

9.7

7.7

5.9

5.45

5.3

24

233.05

7.77

12.0

715

Oct.

5.5

62

31.5

47

11.9

4.3

4.1

4.0

8.4

8.5

5.65

5.4

5.5

5.2

3.2

44 

61

5.0

3.75

5.4

5.1

3.0 376-

3.1

3.2

3.4

3.5

5.5

4.9

-IT 230

625.20

20.2

51.3

1,920

Nov.

57

57

25.5

19.9

17.7

16.8

15.2

*556

554

160

465

5,860

402

250

170

165

650

442

310

252

418

269

381

285

172

129

120

148

149

105

10,557.1

352

545

32,400

Dec.

99

252

204

100

68

47

41

10.8

8.8

975

25.5

17.9

24.5

22

21.5

19.7 

19.7

21

617

634

849

149

119

119

88

68

55

75

120

269

4,564.2

147

227

14,010

Jan.

156

87

70

71

55

44

57

55.5

*40

54.5

178

*775

520

111

94

101 

66

57

48

28.5

24.5

22

15.5

225 

2,950

751

544

149

546

546

156

7,668.5

247

382

23,550

Feb.

115

106

87

77

78

97

68

66

52

128

111

194

246

183

122

-855 1.270 

849

245

149

125

105

318

428

*982

675

695

544

257

9,007

311

481

27,640

Mar.

235- 358

160

118

80

54

65

94

85

69

61

52

55

50

45

81 

144

50

58

66

58

91

44

103

96

267

197

135

106

175 

150

3,358

108

167

10,240

Apr.

168

83

42

13.7

28.5

19.6

22.5

22

31

24.5

15.2

6.6

5.9

6.2

6.1

14.0 

67

250

79

45

39.5

55

20.5

6.6

6.5

5.8

27.5

58.5

7.2

5.5

1,142.2

38.1

58.9

5,510

May

5.6

5.5

5.2

5.2

5.3

5.6

207

144

55

9.1

164

62

48

74

71

11.7 

6.6

4.9

4.8

675

5.0

5.0

6.0

6.6

5.2

6.9

38.5

158

144

17.2 

27

1,298.2

41.9

64.8

3,980

June

19.1

44

42

51

101

79

41

56

22.5

75

42

55

5.6

4.8

7.5

65 

83

52

15.3

13.4

32.5

82

80

91

31

5.0

6.6

5.7

4.1 

5.55

1,175.45

39.2

60.7

3,610

Calendar year 1955. Max 3,860 Mln 2.75 Mean(mgd) 79.1 Mean(cfs) 122 Ac-ft 88,660

Fiscal year 1955-56: Max 3,860 Mln 2.75 Mean(mgd) 115 Mean(cfs) 178 Ac-ft 129,400

Peak discharge (base, 5,700 mgd).--Nov. 12 (12 m.) 50,200 mgd (46,700 cfs), 11.52 ft; Jan. 25 

(2:50 a.m.) 8,400 mgd (15,000 cfs), 8.07 ft; Feb. 16 (5 p.m.) 7,000 mgd (10,800 cfs), 7.74 ft. 

* Discharge measurement made on this day.
ISLAND OF KAUAI 17 

North Wailua ditch near Lihue

Location. Lat 22°03'40", long 159°27 T 55", on left bank 300 ft downstream from intake 

diversion dam on North Fork Wailua River, 8 miles west of Wailua, and 8.5 miles northwest of Lihue.

Records available.--July 1932 to June 1956 in reports of Geological Survey. October 1925 

to June 1932 in files of Lihue Plantation Co.

Gage. Water-stage recorder and sharp-crested weir. Datum of gage is 1,105.45 ft above 

mean sea level (levels by Lihue Plantation Co.).

Average discharge.--24 years (1932-56), 12.0 mgd (18.6 cfs).

Extremes . 1932 -56: Maximum daily discharge, 38 (59 cfs) Dec. 21, 1933, Apr. 24,

1934; no flow at times.

Remarks. Records excellent. Water used for power and irrigation in vicinity of Lihue. 

Revisions (fiscal years).--WSP 770: 1933.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cfs

Ac-ft

July

11.6

12.2

11.0

11.6

10.7

12.9

TOT

12.2

10.5

10.7

10.5

11.3

10.9

11.6

12.5

12.2

12.2

11.6

10.7

10.9

10.2

9.9

9.6

579

10.7

11.3

11.8

11.0

12.8 

11.3

11.6

348.9

11.3

17.5

1,070

Aug.

10.5

11.0

12.0

10.7

11.0

12.9

10.7

11.6

11.3

12.2

11.0

10.5

10.5

12.8

12.8

11.6

10.8

11.7

12.5

15.5

13.1

10.5

9.6

1176

13.7

10.5

9.9

10.5

11.0 

10.2

9.6

353.8

11.4

17.6

1,090

Sept.

9.8

11.5

9,1

9.3

9.1

8.5

875

9.3

8.8

8.8

10.4

9.3

9.3

8.8

9.1

10.0

8.8

8.5

9.6

9.8

10.5

10.7

9.9

10.5

9.6

9.3

9.5

9.3

9.6 

10.5

285.7

9.52

14.7

877

Oct.

10.7

TT75-

11.2

11.0

11.0

11.0

11.6

11.3

11.3

11.6

13.0

12.5

12.5

12.8

11.0

12. "8

11.3

11.3

11.3

11.3

11.3

11.3

11.3

11.6

12.2

11.3

11.6

11.6

*12.2 

13.1

TT7B361.1

-

11.6

17.9

1,110

Nov.

12.5

TT76-

11.3

11.3

11.3

11.3

11.0

10.8

7.5

8.8

10.1

7.2

0

0

0

3.9

6.3

6.7

5.8

6.0

7.1

7.2

7.4

7.2

6.8

5.8

6.0

6.3

8.4 

10.4

226.0

7.53

11.7

694

Dec.

12.6

11.8

9.3

8.8

8.5

8.5

9.3

14.0

13.7

14.0

14.0

13.4

12.8

12.6

12.5

12.2

12.2

11.9

15.3

~37ff

7.6

.86

.36

.36

.36

.29

37TS7.9

12.5

12.4 

10.7

286.88

9.25

14.3

880

Jan.

9.3

8.5

10.0

11.0

10.7

10.7

10.5

10.7

11.3

11.0

13.5

TTe

4.8

10.7

11.3

8.4

8.8

9.8

10.2

11.2

11.6

11.6

11.6

11.9

6.4

.15

0

ff

.23

.04 

0

250.52

8.08

12.5

769

Feb.

5.1

12.2

11.0

10.7

11.0

11.6

11.0

10.7

11.5

12.2

12.2

14.4

TT78

10.7

12.4

9.7

5.8

2.3

03~.0

7.1

12.5

11.9

10.2

9.4

7.2

8.4

3.65

5.4

265.05

9.14

14.1

813

Mar.

8.6

8.8

8.5

7.2

6.9

11.9

11.9

10.0

9.4

9.6

9.6

10.6

11.6

11.6

11.9

11.3

10.5

9.9

11.6

12.8

11.6

9.1

9.1

9.1

9.9

10.3

10.5

9.9

9.3

9 3 

9^3

311.6

10.1

15.6

956

Apr.

9.1

9.1

9.1

8.8

8.5

8.5

8.5

8.5

8.8

8.5

8.5

8.8

10.8

11.6

15.1

11.9

11.9

11.7

12.8

10.7

9.1

8.8

10.5

11.3

11.6

11.6

10.4

8.5

8.1 

10TS"

299.3

9.98

15.4

919

May

11.0

11.3

11.6

11.6

12.2

12.8

11.4

9.9

9.1

10.5

11.9

11.0

10.7

11.9

11.9

10.7

11.4

11.6

12.2

11.9

11.6

12.2

12.5

11.9

11.9

12.5

12.8

13^4

9.9

9*0 

3/75.

348.05

11.2

17.3

1,070

June

7.6

STff

9.3

9.3

9.4

*9.3

9.6

9.6

10.2

10.7

10.7

10.2

10.2

12.7

11.9

13.1

12.8

12.2

15.1

15.5

14.4

13.1

13.1

12.8

11.9

11.9

12.8

12.2

11.6

11.6

343.6

11.5

17.8

1,050

Calendar year 1955; Max 17.6 Min 0 Mean(mgd) 10.6 Mean(cfs) 16.4 Ac-ft 11,880 

Fiscal year 1955-56: Max 15.5 Mln 0 Mean(mgd) 10.1 Mean(cfs) 15.6 Ac-ft 11,300

* Discharge measurement made on this day.
18 ISLAND OF KAUAI

Stable storm ditch near Lihue

Location. Lat 22°04'00", long 159°26'45", on left bank 100 ft downstream from intake, 

7.8 miles northwest of Lihue, and 8.2 miles west of Kapaa.

Records available. December 1936 to June 1956.

Gage.--Water-stage recorder and sharp-crested weir. Altitude of gage is 710 ft (by 

Tarometer).

Average discharge. 19 years (1937-56), 7.23 mgd (11.2 cf s).

Extremes.--1936-56: Maximum daily discharge, 46 mgd (71 cfs) Apr. 3, 1948; no flow at 

times each year.

Remarks.--Records good. Ditch diverts water from North Fork Wailua River for irrigation 

of sugarcane in vicinity of Lihue. Flow regulated by headgates.

Discharge, in million gallons a day, fiscal year July 1955. to June 1955

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

Mean:

rage

ofs

Ac-ft

Caler

July

18.0

4.1

.23

.31

9.0

14.1

.23

.23

.15

.15

11.8

21.5

21.5

2*

17.4

.40

.40

.31

.31

15.2

17.4

14.9

13.5

14.0

16.5

22.5

22.5

23

13.1 

.08

no ,Uo

316.88

10.2

15.8

972

Aug.

0.08

~.13 0

.08

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.15

.08

0

0

0

0

0

0

0

0 

0

0

0.52

0.017

0.026

1.6

Sept.

0

0

0

0

0

0

9.8

16.5

14.0

13.0

19.8

15.7

15.1

13.8

13.3

19.2

12.7

11.9

15.4

17.1

21

19.9

21

21

18.3

14.9

14.9

13.2

14.8

11.4

377.7

12.6

19.5

1,160

Oct.

0.23

.31

.32

.23

723

.23

.23

.23

.23

.23

.23

6.9

9.6

18.3

10.9

26.5

10.9

.23

7.5

10.1

9.4

8.7

8.9

10.6

16.4

11.2

13.3

5.5

.23

23

23

188.32

6.07

9.39

578

Nov.

0.23

.15

.15

.08

.08

.08

.08

.23

.15

.15

.60

~33.3

.15

.08

0

.08

.08

0

0

0

0

.08

0

0

0

0

0

0

0

5.98

0.199

0.308

18

idar year 1955: Max 26.5 Min 0

Dec.

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

.05

0.05

0.002

0.003

0.2

Jan.

0.08

0

.08

.08

0

0

0

0

0

0

0

.13

.15

.15

.15

.15

.15

.08

0

0

0

0

0

.19

1.74

.23

0

0

0 

0

0

3.36

0.108

0.167

10

Feb.

0

0

0

0

0

0

0

0

0

.07

0

.12

.15

.15

0

.82

740

.30

.15

.08

.08

.08

.15

.23

.36

.23

.23

.23

.15

3.98

0.137

0.212

12

Mar.

0.15

.15

.08

.08

p_

0

0

0

0

0

0

0

0

0

.02

.12

.15

0

0

.04

.02

.15

.08

.08

.08

.15

.15

.15

.15 

.23

2.26

0.073

0.113

6.9

Apr.

0.15

.08

.08

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

8.8

12.4

11.9

10.4

.31

.23 9 5

53.85

1.80

2.79

165

May

12.7

11.7

10.6

10.4

16.0

18.8

8.0

.23

.15

.15

.08

.08

.08

.15

.15

.15

.08

0

.08

.08

10.9

4.9

.15

.15

.08

.08

.08

.15

.08 

.08

.08

106.39

3.43

5.31

326

June

5.9

.15

.15

6.2

.10

0

0

7.7

0

0

0

0

0

13.3

18.3

27.5

26

24.5

23

18.6

19.0

10.0

.31

.23

14.1

19.8

28

23

17.1 

15.4

318.34

10.6

16.4

977

Mean(ragd) 3.89 Mean(cfs) 6.02 Ac-ft 4,360

Fiscal year 1955-56: Max 28 Min 0 Mean(ragd) 3.76 Mean(cfs) 5.82 Ac-ft 4,230
ISLAND OP KAUAI 19

North Pork Wailua River at altitude 650 ft, near Lihue

Location. Lat 22°03'50", long 159°26'20", on right bank 0.5 mile downstream from intake 

of Stable storm ditch and 7.8 miles northwest of Lihue.

Drainage area. 6.6 sq mi.

Records available. September 1914 to June 1956.

Gage. Water-stage recorder. Altitude of gage is 650 ft (from topographic map). Prior 

to Sept. 9, 1944, at datum 2.0 ft higher.

Average discharge.--35 years (1921-56), 47.5 mgd (73.5 cfs).

Extremes.--Maximum discharge during year, 5,480 mgd (8,480 cfs) Nov. 12 (gage height, 

13.53 ft), from rating curve extended above 280 mgd by test on model of station site; 

minimum, 0.67 mgd (1.04 cfs) May 4.

1914-56: Maximum discharge, that of Nov. 12, 1955; minimum, 0.22 mgd (0.34 cfs) 

Oct. 27, 1953.

Remarks. Records good except those for periods of doubtful or no gage-height record, 

which are poor. Since 1925 Hanalei tunnel (see p. 32) has discharged its water into 

river, and North Wailua and Stable storm ditches have diverted water above station for 

irrigation in vicinity of Lihue.

Revisions (fiscal years) . WSF 555: 1921.

Rating tables, fiscal year 1955-56 (gage height. In feet, and discharge, 

In million gallons a day)

July 1 to Nov. 12 NOV. 13 to June 30

1.0 

1.2 

1.5 

2.0 

2.5 

3.0

0.70

2.75

8.2

26

62

116

3.5 

4.0 

5.0 

6.0 

7.0

197

297

540

850

1,220

1.2

1.3

1.4 

1.6 

1.9 

2.2 

2.5

0.59

1.39

2.55

6.0

14.4

27.5

47

3.0 

3.5 

4.0 

5.0 

6.0 

7.0

94

160

245

490

820

1,220

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

CfE

Ac-ft

July

2.45

24.5

16.4

24

6.7

168

~29.5

42

20

20

7.7

4.1

3.45

7.8 

35

56

45

41

24

11.3

2.75

2.5

2.25

2.4

4.0

13.1

13.9

9.2

111

35

41

826.00

26.6

41.2

2,530

Aug.

21,5

247S

215

31.5

28

74

23.5

29

30

37.5

26.5

23.5

22.5

*60 

63

36

25

32.5

71

502

97

42

33

44

89

37

32

36

39

31.5

26.5

1,683.5

54.3

84.0

5,170

Sept.

24.5

40

21

20.5

19.3

16.4

6.9

3.85

1.91

1.79

9.8

1.91

1.79

1.67 

1.99

9.6

1.67

473^ 1.55

3.0

6.9

7.7

5.3

5.3

2.8

2.15

1.91

1.91

2.05

33

262.45

8.75

13.5

805

Oct. \

22 '

40

32.5

39.5

23.5

18.1

25

22

23

14.7

13.0

5.6

2.15

8.0 

1.67

21.5

11.2

12.8

5.8

2.15

2.15

2.05

2.15

3.45

5.4

2.25

2.8

8.0

*36.5

74

20

502.92

16.2

25.1

1,540

Nov.

32.5

15.8

13.3

12.2

11.7

11.4

10.6

203

167

53

167

867

200

100 

70

60

300

200

140

100

180

120

150

110

65

44

39

55

50

30

3,577.5

119

184

10,980

Dec.

26

90

60

41

37

32

27

19

17

14

12

11

15

14 

14

13

13

14

250

120

200

110

80

65

65

50

42

30

33

53

110

1,677

54.1

83.7

5,150

Jan.

60

42

32

31

*26

24

22

21

21

19

55

280

120

49 

39

47

33

*26

22

19

17

17

14

70

900

240

130

85

130

130

70

2,791

90.0

139

8,570

 ( 

Feb.

*55

39

28.5

25

25.5

57

31

25

21

23

20

103

104

71 

50

460

424

255

92

65

47

33.5

149

197

358

220

257

118

110

_ _ 

3,463.5

119

184

10,630

Mar.

217

109

65

49

42

35

28

44

31.5

26.5

25.5

21.5

18.4

18.0 

18.9

41

41

21.5

18.0

29.5

30

37

24

43

61

98

103

57

80

80

58

1,571.3

50.7

78.4

4,820

Apr.

47

30

26

23

21

19.8

20

18.9

29.5

19.8

18.4

*22

15.3

11.8 

29

15,8

59

58

60

38

30.5

23

17.6

6.0

.75

.75

34

24

18.9

6.4

744.20

24.8

38.4

2,280

May

0.75

T75

*.75

.75

.94

6.6

112

79

31

43

90

35.5

29.5

71 

67

27.5

20.5

17.3

27.5

22.5

6.8

22

36

21

20

31

39

132

67

41

42

1,141.64

36.8

56.9

3,500

June

25.5

24

38.5

46

60

53

76

29.5

28.5

38.5

36.5

28.5

24

10.4 

1.51

26

8.2

4.4

2.55

1.73

7.4

33

38.5

37

8.8

1.39

9.3

2.85

1.39

1.31

704.03

23.5

36.4

2,160

Calendar year 1955: Max 867 Mln 1.55 Mean(mgd) 44.6 Mean(cfs) 69.0 Ac-ft 49,940

Fiscal Fiscal year year 1955-56: 1955-56; Max Max 900 900 Mln Mln 0.75 0.75 Mean(mgd) MeanlmgdJ 51.8 51.8 Mean(ofs) Heantcfsj 80.1 80.1 Ao-ft Ae-rt 58,140 58,140

Peak discharge (base, 1,200 mgd). Nov. 12 (10 a.m.) 5,480 mgd (8,480 cfs), 13.53 ft: Dec. 19 

(4 p.m.) 1,600 mgd (2,480 cfs), 7.88 ft; Jan. 11 (10:30 p.m.) 1,420 mgd (2,200 cfs), 7.47 ft; 

Jan. 25 (11 a.m.) 3,600 mgd (5,570 cfs), 11.45 ft; -Feb. 16 (2 p.m.) 2,100 mgd (3,250 cfs), 837 ft; 

Feb. 25 (2:30o'a!m.).1 1.380, madg (2.140, ofsK cfs),7.35 ft.

* Discharge measurement made on this day.

Note. Doubtful or no gage-height record Nov. 13 to Feb. 1, Apr. 24-27, Apr. 30 to May 4; discharge estimated on basis of recorder graph and records for station near Kapaa and nearby streams.
20 ISLAND OP KAUAI

Wailua ditch near Kapaa

Location.--Lat 22°04'25", long 159°24'05", on right bank 2,000 ft downstream from Wailua 

Reservoir, 5.2 miles west of Kapaa, and 7 miles north of Lihue.

Records available.--November 1936 to June 1956 in reports of Geological Survey. April 

1932 to November 1936 in files of East Kauai Water Co.

Sage. Water-stage recorder. Altitude of gage is 462 ft (by estimating slope of 2,000- 

foot length of ditch on basis of levels by Lihue Plantation Co.).

Average discharge.--19 years (1937-56), 11.0 mgd (17.0 cfs).

Extremes.--1936-56: Maximum daily discharge, 41 mgd (63 cfs) June 4, 1937; no flow at 

times.

Remarks.--Records fair. Ditch diverts water from North Fork Wailua River to reservoir 

2,000 ft above station and thence to fields for irrigation of sugarcane. Plow regulated by gates at reservoir.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

14.7 

8.4

8.9

8.9

14.1

18.8

18.8

14.9

11.0

11.6

19.6

27.5

30.5

29

20.5

11.6

11.6

11.6

21.5

30.5

33

26.5

13.3

10.4

20.5

30.5

31.5

33

29

11 '. 6

599.1

19.3

29.9

1,840

Aug.

19.5 

27.5

26.5

25

26.5

14.3

10.4

18.1

26.5

26.5

27.5

34.5

T972

 11.6

15.4

22.5

29

33

23.5

9.9

9.9

21.5

33

34.5

31.5

18.6

10.4

10.4

17.7

25

30.5

689.9

22.3

34.5

2,120

Sept.

34 

20

10.4

10.4

10.4

18.0

29

31.5

20

10.4

10.4

18.7

26.5

27.5

27.5

18.6

10.4

10.4

18.7

25

25

23.5

14.4

8.4

7.4

12.8

18.8

18.8

18.8

14.1

549.8

18.3

28.3

1,690

Oct.

9.9 

9.9

15.1

20

11.6

2.05

1.97

1.90

1.97

2.4

2.75

10.6

18.8

14.7

9.9

9.9

16.2

23.5

21

14.3

11.6

11.0

11.0

*14.7

21 .

25

25

14.3

7.7

5.0

JL/-?-

365.46

11.8

18.3

1,120

Calendar year 1955: Max 34.5 Min 

Fiscal year 1955-56: Max 34.5 Min

Nov.

0.84 

.96

.96

.96

1.02

.96

.96

.96

.96

.90

.90

1 07

.78

772" * 72

.78

.84

.90

.90

.90

.90

.96

.96

.96

.96

.96

.96

.96

.96

. 90

27.47

0.916

1.42

84

0 

0

Dec.

0.72 

^72

.66

.60

.54

.54

.60

.60

.66

.60

.60

.60

.60

.54

.54

.42

^36

.36

.36

.36

.36

.36

.36

.36

.42

.42

.42

.42

.42

.36

39

15.27

0.493

0.763

47

Jan.

0.30 

.30

.30

.30

.30

.40

.36

.36

.30

.30

.30

.24

.24

.24

.24

.12

.18

.24

.12

0

0

0

0

.04

1.78

.24

.18

.18

.18

.18IB

8.10

0.261

0.404

25

Feb.

0.12

.12

.12

.12

.18

.18

.18

.18

.18

.18

.24

.30

.30

.30

.36

.30

.38

.30

.30

.36

.42

4.5

3.6

.55

.30

.30

.30

.30

15.09

0.520

0.805

46

Mar.

0.33 

.36

.42

.48

736

.36

.36

.36

.36

.30

.30

.36

.24

.30

.30

.30

.30

.30

.30

.30

.30

.30

.30

.30

.30

0

0

0

0 

0

0

8.19

0.264

0.408

25

Apr.

0 

0

0

0

0

0

0

0

0

0

0

0

0

4.2

5.8

5.9

5.2

*4.3

4.0

3.9

3.8

3.7

3.55

3.4

6.2

LJ.

4.9

5.1

5.0 

4.8

81.45

2.72

4.21

250

May

fcf

5.2

5.3

5.5

5.6

5.8

5.8

5.9

5.7

5.6

5.6

5.6

5.7

6.4

5.7

5.3

5.1

5.0

5.0

5.0

5.1

5.3

5.6

5.6

5.6

5.6

*5.6

5.6

5.6

10.5

174.9

5.64

8.73

537

June

13.2 

13.2

13.8

14.3

11.6

8.9

8.4

7.9

7.9

7.9

7.9

7.4

1579

26.5

2675

19.0

12.1

13.2

13.8

13.8

13.2

13.2

13.2

13.2

12.6

13.2

13.8

14.3

*13.8 

13 . 8

397.5

13.2

20.4

1,220

Mean(mgd) 8.33 Mean(cfs) 12.9 Ac-ft 9,330 

Mean(mgd) 8.01 Mean(cfs) 12.4 Ac-ft 9,000

Discharge measurement made on this day.
ISLAND OF KAUAI 21

North Fork Wailua River near Kapaa

Location.--Lat 22°02'55", long 159°22 ! 25", on right bank 1.1 miles upstream from confluence with South Fork, 4.0 miles southwest of Kapaa, and 5.0 miles north of Lihue.

Drainage area. 18.7 sq mi.

Records available.--July 1952 to June 1956.

Gage. Water-stage recorder. Altitude of gage is 30 ft (from topographic map).

Extremes. Maximum discharge during year, 34,400 mgd (53,200 cfs) Nov. 12 (gage height, 

19.88 ft in gage well, 20.8 ft from floodmarks), from rating curve extended above 

930 mgd on basis of slope-area determination at gage height 19.88 ft; minimum, 4.3 mgd 

(6.6 cfs) Sept. 10.

1952-56: Maximum discharge, that of Nov. 12, 1955; minimum, 1.37 mgd (2.12 cfs) 

Oct. 28, 1953.

Remarks. Records good except those for period of doubtful or no gage-height record, which 

are poor. Wailua ditch diverts water between this station and station at altitude 

650 ft.

Rating table, fiscal year 1955-56 (gage height, In feet, and discharge, 

In million gallons a day)

1.2

1.4 

1.6 

1.8 

2.0 

2.5 

3.0 

3.5

4,16

9.7

17.0

27

40

91

171

285

4.0 

4.5 

5.0 

6.0 

7.0 

8.0 

10.0

430

620

860

1,470

2,300

3,400

6,150

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

Cf£

Ac-ft

July

7.7

17.3

26

26

30

"49 249

21.5

39

48

31.5

10.2

7.5

7.7

21.5

60

76

70 

32.5

20.5

6.4

5.8

6.7

6.7

6.7

13.9

6.2

12.5

72

34.5

50

1,072.3

34.6

53.5

3,290

Aug.

27.5

14.5

295

46

23.5

82

39

43

39.5

30.5

24.5

24.5

21

76

96

73

31

22

69

470

172

70

30.5

*22.5

110

58

45

55

61

37

7.2

2,215.7

71.5

111

6,800

Sept.

32

78

37.5

29.5

29.5

18.6

6.2

5.1

5.1

4.9

8.2

5.3

5.1

4.9

5.1

6.8

5.6

5.3 

5.8

6.3

27

89

96

51

37.5

24

11.9

5.1

4.9

47

698.2

23.3

36.1

2,140

Oct.

42

68

45

65

41

44

49

50

54

41

38.5

31.5

14.7

10.9

8.0

17.9

32.5

14.5 

7.2

6.9

12.8

14.6

16.6

15.7

11.0

15.3

14.6

13.5

100

*274 "95

1,264.7

40.8

63.1

3,880

Nov.

82

58

56

42

40

40

38.5

266

377

160

303

*2,730

350

180

120

110

440

300 

220

180

300

200

240

170

120

95

90

110

100

70

7,587.5

253

391

23,290

Dec.

65

210

190

100

90

85

80

65

70

55

50

42

50

44

44

42

42

48 

480 3SQ400

250

150

120

120

95

75

55

65

110

240

3,832

124

192

11,760

Jan.

120

85

70

70

60

55

50

45

50

*50

280

700

320

120

100

*110

75

65

60

50

46

44

38

280

4.750

1,100

550

250

400

400

200

10,593

342

529

32,510

Feb.

120

100

85

75

75

100

80

70

65

70

70

170

170

140

100

1.000

800

500 

200

160

120

100

280

400

950

440

500

240

220

7,400

255

395

22,710

Mar.

340

220

150

110

100

85

80

90

80

70

65

55

lo- 50

ss

90

85

55

50

70

65

75

60

80

120

190

210

120

160

160

120

3,310

107

166

10,160

Apr.

140

80

65

60

55

50

50

45

70

55

50

*65

49

38.5

59

49

75

143 

137

103

93

79

72

59

37

25

67

85

70

53

2,078.5

69.3

107

6,380

May

36

35.5

39

37.5

35.5

47

179

155

89

75

168

85

75

93

119

79

60

46 

56

65

41

48

65

48.5

48

54

54

205

130

73

93

2,434.0

78.5

121

7,470

June

59

47

61

75

96

96

"84 156

65

73

71

64

49

45

15.9

27.5

13.8

14.2 

11.4

16.6

36.5

54

65

69

37

11.4

19.4

15.3

*20.5

18 9

1,487.4

49.6

76.7

4,560

Calendar year 1955: Max 2,730 Mln 4.9 Mean(mgd) 93.2 Mean(cfs) 144 Ac-ft 104,400

Fiscal year 1955-56: Max 4,750 Mln 4.9 Mean(mgd) 120 Mean(cfs) 186 Ac-ft 135,000

Peak discharge (base, 1,100 mgd). Nov. 12 (11:30 a.m.) 34,400 mgd (53,200 efs), 19.88 ft; Dec. 19 

(5 p.m.) 3,920 mgd (6,070 cfs), 8.40 ftj Dec. 31 (11:30 a.m.) 2,820 mgd (4,360 cfs), 7.50 ft; 

Jan. 11 (11 p.m.) 2,930 mgd (4,530 cfs), 7.62 ft; Jan. 25 (9 a.m.) 21,600 mgd (33,400 cfs), 16.50 

ft; Feb. 16 (6:30 p.m.) 5,700 mgd (8,820 cfs), 9.68 ft; Feb. 25 (11 a.m.) 3,660 mgd (5,660 efs), 

8.18 ft. _______________________________________________

* Discharge measurement made on this day.

Note. Doubtful or no gage-height record Nov. 12 to Apr. 12; discharge estimated on basis of 

recorded graph, records for station at altitude 650 ft, and nearby streams.
22 ISLAND OF KAUAI

Makaleha ditch near Kealla

Location. Lat 22°06'55", long 159°22'05", on left bank at end of last tunnel from which 

flow enters Mlmlno Reservoir, 3.9 miles northwest of Kealla and 4.1 miles northwest 

of Kapaa.

Records available.--December 1936 to June 1956 In reports of Geological Survey. July 

1925 to November 1936 in files of East Kaual Water Co.

Gage. Water-stage recorder and Parshall flume. Prior to December 1936, water-stage 

recorder at site 150 ft downstream at different datum.

Average discharge. 19 years (1937-56), 4.07 mgd (6.30 cfs).

Extremes. 1936-56: Maximum dally discharge, 17.9 mgd (27.7 cfs) Oct. 31, 1954, Aug. 3, 

20, 1955; minimum dally, 0.02 mgd (0.03 cfs) Nov. 28, 1942, Sept. 24-26, 1944, Aug. 31, 

1947, Dec. 28, 1952, Sept. 17-21, 1953.

Remarks. Records good. Ditch diverts water from Makaleha Stream for Irrigation of 

sugarcane. Diversion Is regulated by headgates.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

ofe

Ac-ft

July

9.9

12.4

9.3

7.8

6.9

11.4

9.3

11.9

7.4

6.9

6.4

8.3

9.8

9.8

10.4

11.4

15.4

TT78

9.8

10.4

7.8

6.6

5.9

674

9.4

10.8

12.3

9.9

12.4

8.8 

9.8

296.8

9.57

14.8

911

Aug.

8.3

7.7

17.9

8.8

7.9

9.6

6.9

10.5

11.0

13.8

10.7

8.0

10.3

14.2

13.1

11.4

11.2

13.6

15.3

17.9

11.4

7.8

6.9

7.1

14.2

7.6

7.4

9.3

11.7

8.3 

6.9

326.7

10.5

16.2

1,000

Sept.

8.1

12.4

6.4

5.8

6.0

5.5

5.2

5.0

5.0

4.9

8.9

5.8

8.2

6.9

6.1

10.0

5.4

5.0

5.5

7.9

10.8

10.1

16.1

1376

10.1

7.4

7.8

6.4

6.4

9.2

231.9

7.73

12.0

712

Oct.

7.8

9.8

10.4

10.4

7.8

6.9

8.8

8.3

7.8

6.0

5.8

5.4

5.2

5.7

5.2

9.3

7.4

5.5

5.5

5.4

5.0

5.1

5.8

7.4

9.3

7.8

7.8

7.9

11.3

11.0 

*2.05

224.85

7.25

11.2

690

Nov.

0.98

.53

.36

.27

.22

.17

.14

795

2.9

1.40

3.55

12.6

3.85

1.66

.88

.75

.92

.77

.79

.57

.75

.72

.81

.78

.60

.46

.34

.31

.22

.20

39.45

1.3Z

2.04

121

Dec.

0.20

.27

.25

.20

.17

.20

.20

.17

.14

.14

.22

1.92

5.7

577

3.6

.11

.06

Toe

1.E6

1.48

.72

.57

.37

.31

.25

.2E

.20

.17

.14

.17 

4.4

29.57

0.954

1.48

91

Jan.

1.28

.64

.36

.31

.25

.20

.17

.14

.16

.16

.34

.26

.17

.10

.08

.06,

.06'

705- .OS

,08

 3.55

5.9

3.9

2.2

14.7

7.1

3.35

1.50

2.65

2 15 i!io

53.02

1.71

2.65

163

Feb.

0.68

2.35

.86

.57

.46

.52

.42

.39

.34

.44

.36

1.33

2.55

1.29

.92

5.1

3.7

2.55

1.34

.88

.64

.46

.52

.39

6.0

1.82

1.14

.75

.64

39.41

1.36

2.10

121

Mar.

0.49

.39

.34

.31

.25

.25

.22

.70

.62

.36

.34

.31

.28

.25

.25

.40

.55

.31

.34

.31

.31

.31

.22

.20

.17

.20

.17

.14

.12

.79

1.18

11.08

0.357

0.552

34

Apr.

1.06

.49

.34

.25

.22

.22

.22

.17

2.2

6.9

7.8

8.8

8.5

8.3

9.3

9.3

9.3

*9.8

10.9

10.4

7.4

.92

6.0

8.8

8.3

8.3

10.4

12.6

12.0

-------

190.09

6.34

9.81

583

May

9.3

8.8

8.3

8.3

11.4

12.0

12.0

12.0

11.4

10.9

12.6

12.0

10.4

11.4

12.0

10.4

8.8

8.3

10.9

12.0

10.4

12.6

12.6

12.0

10.4

10.4

9.8

13.1

1276"

11.4 

12.0

339.9

11.0

17.0

1,040

June

12.0

10.9

12.0

12.0

12.0

12.0

12.0

12.0

10.4

11.4

10.9

11.4

9.8

10.4

10.1

10.4

10.4

10.9

10.9

10.4

10.9

12.0

12.0

12.0

9.3

8.3

11.4

8.3

7.4

-7 a

t .0

321.7

10.7

16.6

987

Calendar year 1955: Max 17.9 Min 0.06 Mean(mgd) 5.16 Mean(cfs) 7.98 Ac-ft 5,780

Fiscal year 1955-56: Max 17.9 Min 0.05 Mean(mgd) 5.75 Mean(cfs) 8.90 Ac-ft 6,450

* Discharge measurement made on this day.
ISLAND OF KAUAI 23

Kapahi ditch near Kealia

Location. Lat 22°06'00", long 159°22'30", on right bank 500 ft downstream from intake 

and 4.0 miles west of Kealia.

Records available.--April 1909 to May 1914, May 1915 to June 1956.

Gage. Water-stage recorder and Parshall flume. Altitude of gage is 360 ft (by barometer). 

Prior to Nov. 26, 1936, water-stage recorder at site 61 ft upstream at datum 2.52 ft 

higher.

Average discharge. 38 years (1917-20, 1921-56), 5.09 mgd (7.88 cfs).

Extremes. 1909-56: Maximum daily discharge, 89.2 mgd (138 cfs) Feb. 6, 1913; no flow at 

times.

Remarks . Records good except those for periods of no gage-height record and period of 

indefinite stage-discharge relation, which are poor. Ditch diverts water from Kapaa 

River for irrigation in vicinity of Kapaa. Flow regulated by headgates.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

3.4

2.45

.19

.19

2.3

7.5 476"

4.5

3.05

2.65

2.45

2.95

3.6

5.6

6.8

2.8

.19

4.5

4.6

4.0

3.35

2.95

2.75

£.75 

3.4

4.6

4.6

4.4

6.7

4.3

2. £5

109.77

3.54

5.48

337

Aug.

2.75

2.9

3.9

2.25

4.7

1.56

.19

sU

6.5

5.1

3.7

1.44

.19

4.3

5.0

4.9

6.6

1.95

5.0

1.61

4.0

3.35

3. £5 

4.4

3.6

3.15

3.8

5.0

3.8

3.25

110.54

3.57

5.52

339

Sept.

3.1

4.7

3.25

2.95

2.95

2.65

2.65

2.55

2.65

2.55

6.2

3.25

3.9

3.05

2.75

4.9

2.75

2.55

£.55

4.8

7.0

3.1

1.62

.23 

.19

4.0

4.5

3.9

4.2

8.9

104.34

3.48

5.38

3£0

Oct.

4.1

1.67

4.7

4.5

3.5

2.45

1.54

.19

.78

1.90

1.99

2.35

2.85

2.95

2.85

1.67

3.65

3.25

3.05

2.85

2.65

2.55

2.65

3.25 

*6.0

4.3

6.2

£.05

.40

1.58

.06

84.48

2.73

4. £2

259

Nov.

0.10

.19

.19

.19

.16

.13

.10

.16

.16

.13

.13

.06

.02

ToT ".10

.10

.04

.04

.10

.07

.07

.04

.13

.13 

.13

.13

.13

.13

.60

1 '19

4.92

0.164

0.254

15

Dec.

1.17

.89

.23

.19

.16

1.06

1.05

.70

1.93

1.41

.27

l.ol

1.00

1.59

2.75

H

1.99

1.39

.10

.10

.10

^07

.16 

.23

.86

2.45

2.45

2.35

1.56

o 85

39.37

1.27

1.96

1£1

Jan.

1.58

3.25

£.2

.16

.16

.16

.56

.56

.60

.60

.02

0

0

0

0

0

0

0

0

0

1.0

2.0

£.0

.35

1.0

.37

.07

.0£

.04

.02

0

16.72

0.539

0.834

51

Feb.

0

.03

0

0

0

0

0

0

O

0

o

0

o

0

o

0

0

0

0

0

0

0

0

0 

0

0

0

.26

.50

0.79

0.027

0.042

2.4

Mar.

0.35

.£3

.23

.19

.44

.19

.56

.22

.13

.13

.13

.13

1.67

0

.10

.67

0

O

.25

.44

.19

1.71

1.50

.27 

.27

.27

.51

.27

.£7

.31

.40

12.03

0.388

0.600

37

Apr.

0.16

1.71

1.94

2.15

2.15

1.52

.27

.£7

1.90

3.0

3.85

2.15

1.69

.39

.19

1.98

e£.3

e2.3

e4.0

1.24

.40

.31

2.1

fct

4.4

2.7

.31

.27 

1.60

56.35

1.88

2.91

173

May

2.9

2.5

3.25

3.7

2.15

.33

.72

2.7

4.7

4.7

5.7

3.05

.69

3.6

2.25

£.15

2.95

3.35

2.95

.45

3.7

4.8

5.5

5.6 

3.8

3.15

.59

3.9

5.5 

5.7

6.4

103.43

3.34

5.17

317

June

6.4

474

3.45

4.8

3.35

4.2

5.0

4.9

4.7

5.2

4.6

5.3

3.9

4.0

4.4

3.9

2.35

3.3

2.9

3.95

4.4

6.4

3.65

.19 

3745

3.6

4.6

3.45

3.15 

1.66

119.55

3.98

6.16

367

Calendar year 1955t Max 13.2 Mln 0.0£ Mean(mgd) 2.83 Mean(cfs) 4.38 Ac-ft 3,170

Fiscal year 1955-56: Max 8.9 Mln 0 Mean(mgd) 2.08 Mean(cfs) 3.22 Ac-ft £,340

* Discharge measurement made on this day.

e Stage-discharge relation Indefinite; discharge estimated on basis of records for Kapaa River.

Note. No gage-height record Jan. 8-25; discharge estimated on basis of records for Kapaa River.
24 ISLAND OP KAUAI

Kapaa River at Kapahi ditch intake, near Kapaa

Location. Lat 22"06"05", long 159°22 I 30", on right bank 4 miles northwest of Kapaa and 

4.5 miles northwest of Wailua.

Drainage area. 3.3 sq mi.

Records available. July 1936 (corrected) to June 1956.

Gage. Water-stage recorder and masonry control. Altitude of gage is 365 ft (by barometer) .

Average discharge. 20 years, 13.7 mgd (21.2 cfs).

Extremes. Maximum discharge during year, 4,960 mgd (7,670 cfs) Jan. 25 (gage height, 

5.34 ft), from rating curve extended above 330 mgd by logarithmic plotting; no flow 

many times.

1936-56: Maximum discharge, that of Jan. 25, 1956; no flow at times.

Remarks. Records good except those above 330 mgd, which are fair. Entire low flow is diverted into several ditches above station. Records do not include flow of Kapahi ditch 

(see preceding page).

Rating table, fiscal year 1955-56 (gage height, In feet, and discharge, 

In million gallons a day)

-0.03 

0.0 

.1 

.2 

.3 

.4 

.5 

.6

0

.10

.74

2.55

6.1

11.5

18.9

28.5

0.8 

1.0 

1.2 

1.7 

2.0 

2.5 

3.0

54

90

140

320

470

810

1,270

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

rage

cfs

Ac-ft

July

0

3". 55

3.1

2.55

.52

33.5

 TT7

1.20

0 

0

0

0

0

.68

5.1

6.6

6.1

.69

.02

0

0

0

0

0

0

0

0

0

0 

0

1.62

65.40

2.11

3.26

201

Aug.

0.55

104"0

~.6

0

2.15 

2.85

.95

.83 

.26

0

0

3.95

9.2

2.15

.11

0

1.75

7.8

21

4.5

0

0

0

2.05

.23

0

0

.29

0

0

168.22

5.43

8.40

516

Sept.

0

?.9

0

0

0

0 

0

0

0 

0

.34

0

0

0

0

0

0

0

0

1.43

3.35

78

59

10.9

6.6

1.02

0

0

0 

5.1

138.64

4.62

7.15

425

Oct.

0.14

6.2

1.10

4.6

.73

.99 

3.5

3.75

3.05 

1.30

1.14

.66

0

0

0

6.0

1.65

0

0

0

0

0

0

1.25

1.20

0

0

2.75

20 

372 *2T

453.01

14.6

22.6

1,390

Nov.

24.5

12.2

10.3

9.7

9.1

8.6 

46~8.0

72 

23.5

196

664

44

27.5

19.8

27

42

34

31.5

21

45

28.5

.37

30.5

17.3

14.3

13.6

21

15.0

10.9

1,563.8

52.1

80.6

4,800

Dec.

10.2

26.5

25

13.6

12.2

11.5 

10.3

10.3

9.1 

11.3

16.3

7.7

3.4

102

1.40

2.6

5.6

6.1

187

41

24.5

20.5

13.6

13.6

12.9

10.9

8.6

*8.0

7.5

12.2 

313

857.52

27.7

42.9

2,630

Jan.

21

11.5

10.3

11.5

10.9

10.3 

9.1

9.1

12.9 

7.5

80

139

72

17.3

29

17.3

12.9

10.9

9.9

10.3

6.6

4.4

474

79

1.210

165

72

25.5

139

39 5 

19^8

2,277.9

73.5

114

6,990

Feb.

15.2

80

18.1

15.0

17.3

48 

26

17.3

2575"

15.0

64

64

35

27

248

152

79

28.5

22.5

21

15.7

36

31

566

56

54

29.5

22.5

1,638.4

56.5

87.4

5,030

Mar.

20.5

15.7

13.6

12.9

13.6

13.6 

20

41

22

15.0

17.3

13.6

7.9

1473

13.6

16.8

29

13.6

11.6

18.9

16.3

19.8

11.5

20.5

14.2

22

20.5

15.0

19.4

40 

33

576.7

18.6

28.8

1,770

Apr.

27

12.2

10.3

9.7

9.7

12.2 

15.0

11.5

11.7 

2.95

.25

5.9

1.85

2.55

9.4

3.5

12.4

12.5

39.5

1674

17.0

15.0

4.0

.05

0_

0

13.3

19.4

7.0

3.4

305.65

10.2

15.8

938

May

1.48

1.52

.62

0

4.4

10.7 

14.9

17.4

2.55 

.61

7.6

4.1

3.4

1.83

10.4

2.3

.75

0

3.9

4.1

0

13.3

18.7

1.75

.19

.47

5.8

24

T.7

1.55 

5.8

169.82

5.48

8.48

521

June

0.92

0

3.85

3.6

8.9

8.2 

11.6 o'

1.31

2.25

2.0

0

0

0

2.75

2.35

6.6

5.1

1.66

6.4

9.9

11.1

'7.5

.90

0

1.22

0

0

1.36

104.27

3.48

5.38

320

Calendar year 1955. Max 664 Min 0 Mean(mgd) 17.6 Mean(cfs) 27.2 Ac-ft 19,720

Fiscal year 1955-56: Max 1,210 Min 0 Mean(mgd) 22.7 Mean(cfs) 35.1 Ac-ft 25,530

Peak discharge (base, 1,400 mgd).--Nov. 12 (12 m.) 3,570 mgd (5,520 cfs), 4.65 ftj Dec. 19 

1,710 mgd (2,650 cfs), 3.39 ft; Dec. 31 (11:30 a.m.) 2,550 mgd (3,950 cfs), 4.00 ft; Jan. 

(3.a.m.) 4,960 mgd (7,670 cfs), 5.34 ft; Feb. 16 (5:30 p.m.) 2,550 mgd (3,950'cfs), 3.97 

Feb. 25 (10 a.m.) 2,400 mgd (5,710 efs), 5.91 ft.

19 (5 p.m.) 

25 

ftj

* Discharge measurement made on this day.
ISLAND OF KAUAI 25

Anahola ditch wasteway near Kealia

Location.--Lat 22°08'10", long 159°22'30", on right bank 300 ft downstream from wasteway 

gates on Anahola ditch, 500 ft north of Kaneha Reservoir, 3.8 miles west of Anahola, 

and 4.9 miles northwest of Kealia.

Records available. July (corrected) 1936 to June 1956.

Gage. Water-stage recorder and sharp-crested weir. Datum of gage is 820 ft above mean 

sea level (by hand levels from East Kaual Water Co. bench mark).

Average discharge. 20 years, 3.42 ragd (5.29 cfs).

Extremes. 1936-56: Maximum daily discharge, 54 ragd (84 cfs) Nov. 12, 1955; no" flow at 

times.

Remarks. Records good except those for period of no gage-height record, which are poor. 

Water that passes station flows into Kaupaku Stream and thence into Anahola River 

2 miles below the Anahola River station.

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

of a

Ac-ft

July

0.06

.12

.12

.18

717

.12

0

0

0

0

0

0

0

0

0

.02

0

0

0

.06

.06

.06

.06

.12

.18

.18

.12

.06

.04

.06

.06

1.80

0.058

0.090

5.5

Aug.

0.03

0

.02

0

0

0

0

0

0

0

0

0

.01

.02

.02

.02

.06

7.5

16.0

16.8

5.0

3.0

2.35

.60

.18

.18

.18

.26

.26

 26 

.26

53.01

1.71

2.65

163

Sept.

0.18

.18

.18

.18

.18

.18

.18

.18

.15

.12

.12

.12

.12

.12

.12

.12

.12

.12

.12

.12

.18

.89

6.8

CT

5.0

1.33

.18

.18

.18

.15

23.90

0.797

1.23

73

Oct.

0.12

.12

.12

.18

.12

.12

.18

.12

.12

.12

.12

.12

.12

.12

.06

.12

.12

.12

.18

.18

.26

.26

.26

.34

.26

.18

.26

.18

2.75

20.5

34.73

1.12

1.73

107

Nov.

a9.0

a3.85

a3.5

3.15

2.8

2.5

2.35

1576"

25

9.3

15.5

54

T5.4

11.3

9.0

8.7

27

14.9

14.6

9.3

15.9

11.4

13.0

8.5

6.2

5.2

4.8

13.8

6.3

4.4

353.25

11.8

18.3

1,080

Dec.

4.0

16.9

9.4

4.6

3.85

3.65

3.3

3.15

2.8

9.1

8.2

3.3

1.42

.26

7SS

.26

.26

.26

20.5

13.4

6.9

5.4

4.1

3.85

3.5

3.5

3.15

2.8

2.65

7.4 

26

178.12

5.75

8.90

547

Jan.

7.1

4.5

3.75

3.3

3.15

2.9

2.65

2.8

5.0

2.8

25.5

33.5

2175

7.4

13.3

7.8

5.0

4.2

3.85

3.5

3.5

3.3

3.15

16.3

33

6.9

3.35

2.15

4.4

2. 65 

2.0

244.20

7.88

12.2

749

 > 1 Feb.

1.71

4.2

1.66

1.45

1.45

1.71

1.58

1.45

2T5~ 1.32

1.58

2.65

3.15

2.0

1.85

6.9

5.7

3.3

2.5

2.15

2.0

1.85

2.35

2.2

7.8

2.5

2.55

2.0

1.85

 

76.01

2.62

4.05

233

Mar.

1.71

1.58

1.45

T755

1.45

1.45

4.7

12.3

7.4

5.9

7.4

4.4

4.2

6.4

4.6

13.7

12.3

5.0

8.3

14.7

10.1

11.3

7.0

11.0

8.2

12.4

10.3

6.9

11.1

15.7 

T2T3"

236.69

7.64

11.8

726

Apr.

11.6 ~5T2

4.4

4.0

4.0

7.1

3.9

4.0

8.5

2.45

.26

.26

.26

.26

.34

.26

.34

.26

.26

11.1

8.0

5.4

4.2

3.65

.86

.26

.18

.61

473- .12

96.33

3.21

4.97

296

May

3.85

3.3

1.28

.18

.18

.06

B 3.g

4.3

6.2

6.1

15.6

5.2

4.6

.87

.18

.18

.12

.12

.18

.12

.12

4.3

18.6

6.Z

5.4

4.0

5.3

14.6

9.8

8.6 

10.8

140.46

4.53

7.01

431

June

6.7

4.2

5.7

*7.1 576-

4.9

.34

2.75

6.1

5.6

5.8

2.2

.26

.26

.26

.26

.26

.26

.26

.26

.26

.26

.26

.26

.26

.26

.26

TIB- .18

 18

61.43

2.05

3.17

189

Calendar year 1955 . Max 54 Mln 0 Mean(mgd) 4.60 Mean(cfs) 7.12 Ac-ft 5,160 

Fiscal year 1955-56 ; Max 54 Mln 0 Mean(mgd) 4.10 Mean(cfs) 6.34 Ac-ft 4,600

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for nearby stations.
26 ISLAND OP KAUAI

Anahola ditch above Kaneha Reservoir, near Kealla

Location. Lat 22°08'00", long 159°22'30", on left bank at point of discharge into Kaneha 

Reservoir, 500 ft below wasteway gates and 5 miles northwest of Kealla.

Records available. December 1921 to June 1956. May 1915 to December 1921 at site 

0.3 mile upstream; records not equivalent owing to diversion.

Gage. Water-stage recorder and Parshall flume. Datum of gage Is 821.8 ft above mean sea 

level (Llhue Plantation bench mark). Dec. 9, 1921, to June 2, 1934, at site 480 ft 

upstream at different datum.

Average discharge.--33 years (1921-25, 1927-56), 3.22 mgd (4.98 cfs).

Extremes.--1921-56: Maximum dally discharge, 40 mgd (62 cfs) Nov. 12, 1947; no flow at 

times.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Ditch diverts water from Anahola River to Kaneha Reservoir, where It Is stored for 

Irrigation. Plow sometimes diverted by Anahola ditch wasteway (see preceding page).

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

2.7

3.95

3.85

4.4

3.45

22.5 "473

5.3

3.0

2.65

2.25

2785

3.5

6.1

8.2

11.7

5.7

4.8

3.6

5.5

2.9

2.45

2.25

2.45

5.0

12.2

5.5

5.0

4.1 

3.35

6.9

162.40

5.24

8.11

498

Aug.

3.7

4.8

22.5 ~£79~

4.1

3.8

3.0

6.4

6.5

12.2

7.2

4.9

4.6

9.6

7.6

5.8

5.2

8.2

.12

.12

.09

.09

.06

2715"

7.3

3.85

3.55

7.3

9.8 

8.0

4.6

172.33

5.56

8.60

529

Sept.

4.0

8.4

3.45

3.2

3.35

2.8

a2.7

a2.6

a2.5

2.25

2.45

2.8

3.75

2.65

1.82

5.3

1.91

1.73

2.05

5.6

8.7

13.6 "973"

.04

754

1.83

2.8

2.35

2.1 

6.8

112.87

3.76

5.82

346

Oct.

2.45

3.9

4.2

6.2

3.1

2.35

4.8

3.8

3.0

2.25

2.25

2.1

2.0

2.0

1.73

4.7

2.65

1.82

2.7

2.25

1.82

1.91

2.2

5.6

6.3

3.0

6.5

3.55

22 

15.6

.31

129.04

4.16

6.44

396

Nov.

0.99

.09

.09

a.06

a706

a.06

a.06

a. 40

a. 50

a. 12

1,42

"Tie 7.8

.12

.12

.12

.09

.09

.06

.06

.09

.09

.09

.06

.06

.09

.09

.09

.09

.06

13.28

0.443

0.685

41

Dec.

.06

.06

.06

.06

.06

.06

.06

.06

.04

751

.04

.04

1.39

2.35 272~

2.1

2.0

2.0

1.33

.06

.06

.09

.06

.04

.06

.06

.06

.06

.09

.04 

.47

15.16

0.489

0.757

47

Jan.

0.09

.09

.12

.09

.06

.06

.06

.09

.09

.06

.16

.14

.08

.06

.06

.06

.06

.04

.04

.02

.02

.04

.04

.28

15.7

.16

.06

.06

.16

. 06 

.06

16.17

0.522

0.808

50

Feb.

"714 0.06

.06

.06

.06

.09

.06

.06

.06

.06

.06

.09

.09

.06

.06

.16

.16

.12

.09

.09

.09

.09

.06

.06

.26

.09

.12

.09

.09

_______

2.64

0.091

0.141

8.1

Mar.

0.06

.06

.06

.09

.09

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.04

75S

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.12 

.16

2.06

0.066

0.102

6.3

Apr.

0.16

.12

.12

.09

.09

790- .06

.06

.06

1.46

2.9

4.0

3.25

2.9

5.6

3.95

8.0

11.0

23

T.65

.09

.09

.09

.09

2.7

2,9

4.6

16.0

6.9

1.01

104.84

3.49

5.40

322

May

0.06

.04

1756

2.7

14.5

9.4

13.2

8.0

.06

.06

.06

.06

.06

6.0

7.5

3.8

3.2

2.65

8.0

7.6

4.2

15.7

756

.06

.06

.06

.06

.06

.06

.06 

.06

108.95

3.51

5.43

334

June

0.06

.09

.09

.09

.06

2.75

14.9

^7?

.04

754

.04

2.8

3.55

4.0

4.4

7.2

3.45

5.9

5.2

3.9

7.1

9.0

7.1

4.5

a3.4

a3. 2

a2.9

a2.8

3.0

3.1

109 . 86

3.66

5.66

337

Calendar year 1955: Max 22.5 Min 0 Mean(ragd) 2.57 Mean(cfs) 3.98 Ac-ft 2,870

Fiscal year 1955-56: Max 23 Mln 0.02 Mean(ragd) 2.59 Mean(cfs) 4.01 Ac-ft 2,910

a No gage-height record; discharge estimated on basis of records for nearby stations.
ISLAND OF KAUAI 

Anahola River near Kealia

27

Location.--Lat 22°08'55", long 159°21'20", on right bank just upstream from Intake of 

Lower Anahola ditch and 4.5 miles northwest of Kealia.

Drainage area. 5.5 sq ml.

Records available. August to November 1910, December 1910 to November 1912 (fragmentary), 

December 1912 to June 1956.

Gage. Water-stage recorder and concrete dam and orifice control. Datum of gage Is 295.11 

ft above mean sea level (Highway Department bench mark). Aug. 22 to Nov. 2, 1910, 

water-stage recorder, Dec. 15, 1910, to Dec. 29, 1912, staff gage, and Dec. 30, 1912, 

to May 3, 1934, water-stage recorder, at site an eighth of a mile upstream at different 

datum.

Average discharge. 37 years (1919-56), 13.5 mgd (20.9 cfs).

Extremes. Maximum discharge during year, about 12,700 mgd (19,600 cfs) Jan. 25 (gage 

height, 14.6 ft, from floodmarks), from rating curve extended above 380 mgd; minimum, 

2.65 mgd (4.10 cfs) Sept. 18, 19.

1910, 1912-56: Maximum discharge, that of Jan. 25, 1956; minimum, 1.28 mgd (1.98 

cfs) Oct. 27, 1953.

Remarks. Records good prior to Nov. 12, poor thereafter. Anahola ditch diverts water 

3 miles above station for Irrigation In vicinity of Kealia (see preceding page).

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cfs

Ac-ft

July

3.3

3.45

3.8

3.3

3.95

22

T.6

3.8

3.45

3.15

5.0

377

4.3

5.0

6.2

9.3

5.6

4.4

3.95

5.3

3.95

3.4

3.25

3.3

3.8

7.1

4.2

4.1

3.3

3.45

3.75

149.15

4.81

7.44

458

Aug.

3.85 475~

52

6.0

4.8

4.1

3.85

4.9

5.8

8.6

6.5

5.0

4.4

7.5

6.3

5.3

5.2

13.8

20

13.2

6.5

5.2

4.7

*4.1

5.7

4.2

3.85

5.1

6.8

5.5

4.6

241 ! 85

7.80

12.1

742

Sept.

3.85

5.5

3.85

3.55

3.8

3.45

3.4

3.5

3.45

3.1

2.95

3.0

3.3

3.1

3.1

4.0

3.0

2.8

371

5.0

13.5

63

39.5

18.3

11.1

7.0

5.7

5.0

4.6

5 2

243.50

8.12

12.6

747

Oct.

4.6

5.3

5.5

6.4

4.4

4.0

5.3

4.6

4.0

3.7

3.55

3.4

3.4

3.25

3735

5.5.1

4.4

3.4

3.65

4.2

3.25

3.25

3.3

4.8

5.7

4.4

5.1

5.2

80

392

*55

617.90

19.9

30.8

1,900

Nov.

22

13.0

10.9

9.8

8.4

7.1

52 6.7

72

*24.5

187

~59 619

38

26

21

38.5

25.5

27.5

23

25

22.5

20

18.3

16.9

16.0

13.3

17.5

15.5

10.0

1,465.9

48.9

75.7

4,500

Dec.

8.7

17.9

17.9

12.5

8.4

8.0

7.0

6.4

6.0

11.7

19.5

7.2

6.1

5.8

5.6

5.9

5.6

5.5

143

31.5

17.2

14.4

11.7

9.8

8.9

10.1

8.6

*7.3

7.5

14.1 

187

637.4

20.6

31.9

1,960

Jan.

28

18.9

15.7

13.9

12.1

10.5

9.8

9.2

10.1

8.6

79

110

44

22

25.5

19.5

15.3

13.4

11

12

10

9.5

9.0

70

1.000

250

80

28

110

40

22

2,117.0

68.3

106

6,500

Feb.

16

80

19

16

18

50

29

18

15

2?

16

65

65

36

28

240

150

ao

32

25

23

17

35

33

550

57

55

30

23

1,643

56.7

87.7

5,040

Mar.

21

16

14

13

14

14

20

37

2T

14

15

12

8.0

13

13

15

25

12

10

15

12.0

16.4

9.9

15.6

9.3

11.0

9.3

9.3

13.1

36 

30

494.9

16.0

24.8

1,520

Apr.

23

13.4

11.0

9.3

8.8

14.5

11.0

8.4

11.6

7.3

7.0

7.0

*6^_

6.7

7.1

6.8

15.0

17.1

32.5

19.2

13.9

11.0

8.4

7.1

7.0

6.8

11.4

53

2T.5

15.1

401.6

13.4

20.7

1,230

May

12.2

9.9

8.8

9.0

16.4

14.5

17.8

17.2

11.6

9.3

25

12.2

9.3

11.0

9.9

7.1

6.8

6.7

8.9

11.6

7.0

57

30". 5

12.8

8.4

6.7

6.4

1276

9.9

9.4

19.4

415.3

13.4

20.7

1,270

June

8.6

6.8

6.8

7.3

*8.4

11.0

13^

T78

6.8

6.1

6.1

6.2

5.7

5.8

6.2

6.8

5.6

5.8

6.5

5.7

6.0

11.6

6.4

5.8

5.2

5.1

5.5

5.0

4.9

- ~

204.7

6.82

10.6

628

Calendar year 1955 : Max 619 HIn 2.8 Hean(mgd) 17.1 Hean(ofs) 26.5 Ac-ft 19,150

Fiscal year 1955-56 : Max 1,000 Mln 2.8 Mean(mgd) 23.6 Mean(ofs) 36.5 Ac-ft 26,500

Peak discharge (base, 900 mgd). Oct. 30 (2 a.m.) 4,370 mgd (6,760 cfs), 8.41 ft} Kov. 12 (10:30 a.m.) 

4,970 mgd (7,690 cfe), 8.87 ft} Dec. 19 (4i30 p.m.) 1,070 mgd (1,660 cfs), 5.12 ft} Dec. 31 (ll:30 

a.m.) 1,540 mgd (2,380 cfs), 5.68 ft} Jan. 25 (time unknown) about 12,700

Feb. 16 (time and discharge unknown)} Feb. 25 (time and discharge unknown)._________________

* Discharge measurement made on this day.

Note. Ho gage-height record Jan. 19 to Mar. 20; discharge estimated on basis of records for 

Kapaa River.

5Z7571 O -59 -3
28 ISLAND OF KAUAI

Lower Anahola ditch near Kealia

Location.--Lat 22°08'00", long 159°19'30", on left bank 100 ft downstream from last wasteway, 1.3 miles southwest of mouth of Anahola River, and 2.5 miles northwest of Kealia.

Records available.--December 1936 to June 1956 in reports of Geological Survey. July 1985 

to December 1936 in files of East Kaual Water Co.

Gage. Water-stage recorder and Parshall flume. Datum of gage is 276.11 ft above mean sea 

level (Highway Department bench mark).

Average discharge.--19 years (1937-56), 2.46 mgd (3.81 cfs).

Extremes . 1936-56: Maximum daily discharge, 12.0 mgd (18.6 cfs) June 1, 1938; no flow 

at times.

Remarks. Records good. Ditch diverts water from Anahola River for irrigation of sugarcane. Flow regulated by spillways and gates.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

3^0

3.2

3.7

3.55

3.55

3.8

4.0

3.75

3.45

3.55

3.45 

3.25

3.55

3.55

3.8

4.0

4.0

3.7

3.4

3.7

3.45

3.2

3.0

3.0

3.2

3.45

3.35

3.35

3.35 

3.4

3 25

107.95

3.48

5.38

331

Aug.

3.55

3.45

4.9

4.7

5.4

5.1

4.7

5.1

6.2

6.2

6.2 

5.8

5.3

5.6

2.5

.03

.03

.03

.03

.03

.03

.03

.01

4.5

5.0

2.75

.04

.03

3.1 

7.0

5 2

102 . 54

3.31

5.12

315

Sept.

4.7

6*8

4.7

4.2

4.3

4.1

4.0

3.9

4.0

3.8

3.7 

3.7

3.9

3.8

3.7

4.2

3.9

3.55

3.7

4.4

5.8

5.8

3.45

.03

.03

.03

.01

0

0 

0

98.20

3.27

5.06

301

Calendar year 1955: Max 8.5 

Fiscal year 1955-56 : Max 7.0

Oct.

0

0

0

3.25

4.8

4.5

3.1

.03

.03

1.33

3.9 

3.9

3.9

3.8

3.75

5.1

4.7

4.1

4.0

4.4

3.9

3.7

3.7

4.1

*4.8

4.6

4.7

5.1

6.4

1 98

0

101.57

3.28

5.07

312

Nov.

0

0

0

0

0

O

0

.01

.01

0

^03 

.03

.01

0

0

0

0

o

0

0

0

0

o

0

0

o

0

0

0

0

0.09

0.003

0.005

0.3

Dec.

0

0

0

0

Jan.

0

0

O

0

0

o

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

.02

o

0

0

0

o

0

0.02

o.ooi

0.002

0.06

Feb.

0

0

0

0

Mar.

0

0

0

0

Apr.

0

0

0

0

May

0

0

O

0

0

0

0

0

o

0

o

0

0

0

0

0

0

o

0

0

.36

ToT

0

0

0

0

0

0

0

0

0

0.37

0.012

0.019

1.1

June

0

0

0

*3.0

2.25

2.9

1.60

2.0

.03

.03

2.75

1*1

1.75

1.80

.22

.04

.03

1.74

1.89

1.65

.07

1.78

.04

.03

1.34

1.35

1.45

1.38

1.29

.07

35.58

1.19

1.84

109

Min 0 Mean(mgd) 2.69 Mean(cfs) 4.16 Ac-ft 3,020 

Min 0 Mean(mgd) 1.22 Mean(cfs) 1.89 Ac-ft 1,370

Discharge measurement made on this day.
ISLAND OF KAUAI 29

Kalihiwai ditch near Kilauea

Location. Lat 22°10'55", long 159°25'55", on right bank 0.1 mile upstream from Kalihiwai 

Reservoir and 2.4 miles southwest of Kilauea.

Records available. June 1934 to June 1956.

Gage. Water-stage recorder and Parshall flume. Altitude of gage is 410 ft (by barometer).

Average discharge. 21 years (1934-42, 1943-56), 2.61 mgd (4.04 cfs).

Extremes.--1934-56: Maximum daily discharge, 29.5 mgd (45.6 cfs) July 16, 1937; no flow 

at times.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Ditch diverts low-water flow from most branches of Pohakuhono Stream at intakes, about 

1 mile south of station. Diversion of flow to Kahiliholo Stream, 0.1 mile above station, regulated by gates. Water discharges into Kalihiwai Reservoir, where it is 

stored for irrigation in vicinity of Kilauea.

Discharge, in million gallons a day, fiscal year July 1955 to June 1955

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

Mean:

mgc

cfs

Ac-ft

July

1.96

2.05

1.87

1.96

1.78

15.0

4 5

3l25

2.65

2.45

2.15

2.55

2.75

2.75

6.1

7.6

5.3

4.2

3.5

3.9

3.05

2.75

2.55

2.65

2.85

4.2

3.15

4.5

6.5 

4.2

4.1

118.77

3.83

5.93

364

Aug.

3.15

3.05

lT7ff~

4.3

3.6

4.6

3.25

4.5

5.0

7.8

5.4

4.3

3.9

5.3

4.8

4.3

4.2

8.6

10.2

11.0

6.8

5.2

4.3

4.0

6.1

4.2

3.6

4.0

6.3 

5.3

3.8

166.65

5.38

8.32

511

Sept.

3.6

5.4

3.45

3.7

3.05

2.75

2.55

2.45

2.25

2.25

2.15

2.35

2.45

2.45

2.3

3.7

2.25

2.05 270"5"

2.75

4.7

"sT? 14.3

5.2

3.9

3.05

2.75

2.25

2.05 

2.05

104.80

3.49

5.40

322

Oct.

2.05

3.05

3.7

4.3

3.15

2.55

2.45

2.25

1.96

1.87

1.87

1.70

1.70

2.05

1.70

2.25

2.2

1.78

1.70

1.70

L.62

TTftJ

1.78

1.96

2.35

1.78

*2.95

1.96

4.0 

14.1

4^3

84.48

2.73

4.22

259

Nov.

3.8

2.95

2.65

2.35

2.15

2.05

1.96

8.2

"T70 9.2

.98

2.75

.42

.33

.29

.25

.33

.33

.29

.25

.25

.25

.25

.29

.25

.25

.21

.21

.17 

.14

44.50

1.48

2.29

137

Dec.

0.14

.14

.11

.11

.11

.11

.11

.11

.08

.08

.08

.08

.08

.08

.08

.06

TOT

.08

.22

.21

.14

.14

.14

.14

.14

.14

.14

.14

.89 

5.3

13 9

23.34

0.753

1.17

72

Jan.

3.9

3.15

1.89

1.78

2.15

2.05

2.05

1.96

1.96

1.87

2.8

2.75

1.96

1.54

1.62

1.46

1.01

.47

.47

.42

.42

.42

.42

2.15

6.7

.42

.25

T25

.25

25

25

49.04

1.58

2.44

150

Feb.

0.17

.17

.14

.11

.11

.11

.11

.11

^08,

.08

.08

a. 08

a. 08

a. 17

.11

.42

.47

.29

.21

.21

.17

.14

.14

.17

.47

.33

.33

.25

2.75

8.06

0.278

0.430

25

Mar.

5.8

5.5

4.8

4.3

3.8

3.05

2.95

3.05

2.5

2.55

2.35

2.45

2.65

2.75

2.45

2.8

3.65

2.75

3.3

4.4

1.52

.70

.64

.70 . 58

.64

.58

.58

2.65

 5 9.2 T"

93.74

3.02

4.67

288

Apr.

7.1

575

4.1

2.35

2.25

2.35

3.4

3.9

4.5

3.8

3.45

4.5

3.35

3.25

6.5

4.0

3.9

4.7

5.6

7.1

5.2

4.3

3.6

3.25

3.05

2.95

3.05

3.05

2.85

2 .55

119.45

3.98

6.16

367

May

2.35

2.25

2.05

27T5

6.3

8.8

14.7

9.6

4.0

3.45

7.0

3.8

3.25

6.3

10.8

4.3

3.25

2.85

2.85

3.05

3.55

14.5

7.3

4.0

3.45

3.05

3.15

4.6

3.7

3.75

4.6

158.75

5.12

7.92

487

June

3.8

3.25

5.2

7.2

7.2

8.6

*T74

5.5

4.9

5.5

4.5

4.2

3.6

3.45

3.25

3.7

3.05

2.95

3.05

2.65

3J 15

3.6

3.35

3.15

2.65

2.45

2.85

a2.4

a2.2

2 05

120.80

4.03

6.24

371

Calendar year 1955: Max 29 Min 0 Mean(mgd) 3.09 Mean(cfs) 4.78 Ac-ft 3,460

Fiscal year 1955-56: Max 15.0 Min 0.06 Mean(mgd) 2.98 Mean(cfs) 4.61 Ac-ft 3,350

* Discharge measurement made on this day.

a No gage-height records discharge estimated on basis of probable increase or decrease in flow.
30 ISLAND OF KAUAI

Ka Loko ditch near Kilauea

Location.--Lat 22"10'35", long 159°23'00", on left bank 35 ft downstream from Moloaa 

ditch, 400 ft upstream from Ka Loko Reservoir, and 3.5 miles southeast of Kilauea.

Records available.--August 1932 to June 1956.

Gage. Water-stage recorder and Parshall flume. Altitude of gage is 750 ft (from topographic map).

Average discharge.--23 years (1933-56), 3.58 mgd (5.54 cfs).

Extremes.--1932-56: Maximum daily discharge, 63 mgd (98 cfs) Dec. 10, 1935; minimum 

daily, 0.46 mgd (0.71 cfs) Nov. 21, 22, 1949.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Ditch diverts water from Moloaa and Puu Ka Ele Streams, 0.5 mile southeast and 

1.5 miles southwest of station, respectively. Water used for irrigation in vicinity of 

Kilauea. Flow regulated by wasteway gates.

Discharge, In million gallons a day, fiscal year July 1955 to June 1956.

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

31

Total

Mean:

mgd

CfE

Ac-ft

July

1.59

1.54

1.54

1.55

1.57

2.75

1.54

1.71

1.31

1.16

1.16

1.54

1.88

2.4

4.1

4.9

2735

1.71

1.54

2.35

1.47

1.39 

1.23

1.39

1.39

3.15

1.71

1.39

1.63

1 39 

l!75

57.88

1.87

2.89

178

Aug.

1.31

1.59

15.6

2.05

1.80

1.63

1.47

2.5

2.45

3.95

2.65

1.98

1.71

3.15

2.45

2.05

1.80

4.4

6.7

4.9

2.45

1.98 

1.80

1.71

3.45

2.15

1.80

2.05

3.85

£.9 

2.15

90.23

2.91

4.50

277

Sept.

1.89

3.45

1.80

1.80

1.89

1.63

1.54

1.54

1.47

1.39

1.31

1.31

1.47

1.47

1.31

2.15

1.25

1.23

1.31

4.1

9.0

9.7

15.2

4.5

2.95

2.15

1.89

1.71

1.63

2.1

84.12

2.80

4.33

258

Oct.

1.63

2.95

2.65

3.0

1.89

1.71

2.2

1.89

1.80

1.54

1.47

1.39

1.39

1.31

1.31

2.65

1.54

1.31

1.62

1.54

1.31

1.31 

1.31

2.45

2.65

1.71

*1.75

1.76

13.5

pa c. £ J.o 

4.6

98.64

3.18

4.92

303

Nov.

6.3

3.15

2.75

2.45

2.35

2.15

2.05

17.7

23.5

6.2

15.6

~5.0 44

3.5

2.15

2.05

6.2

5.0

5.0

3.45

4.2

3.35 

4.0

2.85

2.35

1.98

1.89

2.25

1.80

T S4. 1.0*

186.76

6.23

9.64

573

Dec.

1.54

2.65

2.75

1.89

1.71

1.90

1.29

.95

1.16

2.75

2.5

1.63

1.47

1.51

1.25

1.65

2.05

1.98

~576

3.45

3.15 

2.65

2.35

2.15

2.65

2.05

1.98

1.89

3.5

9.5

84.53

2.73

4.22

259

Jan.

1.63

1.87

2.05

1.89

1.71

1.54

1.54

1.47

1.47

1.31

7.5

12.7

5.0

1.25

1.52

2.55

2.8

3.05

3.05

2.75

2.45

1.98 

2.25

17.7

19.7

2.85

3.15

2.75

2.85

2.75 

3.1

120.16

3.88

6.00

369

Feb.

2.85

2.95

2.35

2.25

2.55

2.95

2.35

2.15

1.98

2.65

2.55

2.25

2.35

a2.7

a. 68

a4.4

a.5.0

a4.2

a5.6

a3.2

2.95

2.65 

2.95

1.07

.65

.57

757

.57

1.98

69.92

2.41

3.75

215

Mar.

2.25

1.53

.57

^52

1.67

1.98

1.80

2.55

2.6

1.71

1.54

1.54

1.54

1.54

1.39

1.71

2.15

1.47

2.36

2.35

1.95

2.1 

1.47

1.98

1.54

1.63

1.65

1.54

5.25

g 25 *"J

58.60

1.89

2.92

180

Apr.

1.96

1.47

1.47

1.71

1.89

2.25

1.89

1.71

2.05

1.63

1.54

1.54

1.76

2.25

3.05

2.35

5.9

571

3.7

2.15

1.80 

2.5

2.45

2.35

2.5

3.05

3.9

1.16

2.3

77.68

2.59

4.01

238

May

2.55

2.35

2.15

2.15

3.95

3.9

3.25

.95

1747

2.45

2.85

2.25

1.98

2.25

1.80

2.05

2.45

2.35

2.9

2.95

2.35

27L

1.16

1.91

5.05

5.1

6.4

2.15

1.05 

1.46

82.48

2.66

4.12

253

June

3.2

3.15

3.8

4.0

3.8

3.9

*2.75

.95 17T4

2.95

2.95

2.95

2.55

2.85

2.85

5.9

2.65

2.95

5.35

2.75

3.8

5725

2.95

2.45

2.55

3.25

a2.6

a2.0

1

QO

, 3O

89.52

2.98

4.61

275

Calendar year 1955: Max 44 Min 0.95 Mean(mgd) 3.59 Mean(cfs) 5.25 Ac-ft 5,800 

Fiscal year 1955-56: Max 44 Min 0.52 Mean(mgd) 5.01 Mean(cfs) 4.66 Ac-ft 5,580

* Discharge measurement made on thlB day.

a No gage-height record; discharge estimated on basis of records for Puu Ka Ele and Kallhlwai 

ditches.
ISLAND OF KAUAI 31

Puu Ka Ele ditch near Kllauea

Location. Lat 22"II 1 05", long 159°24'20", on left bank 200 ft upstream from Puu Ka Ele 

Reservoir and 2 miles south of Kllauea.

Records available. August 1932 to June 1956.

gage. Water-stage recorder and Parshall flume. Altitude of gage Is 430 ft (by barometer).

Average discharge. 23 years (1933-56), 2.86 mgd (4.43 cfs).

Extremes. 1932-56: Maximum dally discharge, 21 mgd (32 cfs) Sept. 2, 1943; no flow at 

times each year.

Remarks. Records good except those for periods of no gage-height record, which are poor. 

Ditch diverts water from Puu Ka Ele Stream 0.8 mile south of station. Water used for 

Irrigation of sugarcane In vicinity of Kllauea. Flow regulated by wasteway gates.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956.

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

Mean:

mgc

CfE

Ao-ft

July

1.98

1.98

2.25

1.89

1.98

2.05

1.98 

2.25

1.98

1.80

1.80

1.89

2.25

1.98

2.75

3.8

3.55

2.65

2.25

2.45

2.45

2.15

1.98

2.0

2.1

3.0

2.5

2.2

2.8 

2. 35

2!?

71.74

2.31

3.57

220

Aug.

2.25

2.35

2.55

0

0

0

0 

0

0

1.35

2.45

2.15

2.15

2.95

2.55

2.45

2.45

3.75

4.8

7.2

3.55

3.05

2.85

2.75

4.0

2.95

2.65

2.65

3.7 

3 45

2.85

75.85

2.45

3. '7 9

233

Sept.

2.85

3.7

2.75

2.65

2.75

2.55

2.25 

2.15

2.05

1.98

1.98

2.05

2.05

1.98

1.89

2.15

1.89

1.80

T780

2.85

5.6

4.8

8.5

572

3.8

3.15

2.95

2.75

2.65

2 , 65

88.17

2.94

4.55

271

Oct.

2.45

3.25

3.15

3.25

2.65

2.55

2.75 

2.55

2.45

2.25

2.25

2.15

2.15

2.05

1.98

3.25

2.25

2.05

2.15

2.05

1.98

1.98

2.15

2.65

2.85

2.25

*2.15

2.4

9.0

o*

82.04

2.65

4.10

252

Nov.

0

1.28

1.71

1.54

1.54

1.47

1.39 

3.6

1.59

0

1.61

4.6

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

20.33

0.678

1.05

62

Dec.

0

0

O

0

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

.35

0

0

0

0

0

0

0

0

0

0

0 2 45

2.80

0.090

0.139

8.6

Jan. \

0.87

0

0

0

0

0

0 

0

0

0

2.15

.76

.36

.27

.55

.16

0

0

0

.12

0

0

0

4.4

3.85

.01

0

0

0

0 

0

13.50

0.435

0.673

41

Feb.

0

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.25

0

0

0

0

0.23

0.008

0.012

0.7

Mar.

0

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

0

o

.03

0

0

0

0

0

0

0

0

0

.40

.20 

0

0.63

0.020

0.031

1.9

Apr.

0

0

0

0

0

0

0 

0

0

0

2.0

3.5

3.1

3.1

3.7

3.3

4.5

8.0

672

4.9

4.0

3.55

3.15

2.95

2.85

2.75

3.15

5.8

4.6

3 25

78.35

2.61

4.04

240

Hay

2.95

2.75

2.65

2.65

3.9

4.7

8.5 

6.8

4.4

4.3

7.4

5.5

4.3

7.3

6.6

4.6

4.0

3.7

3.8

3.9

3.55

12.9

8.5

5.5

4.7

4.1

3.8

8.5

5.5

4.5

6.0

162.25

5.23

8.09

498

June

4.6

4.0

5.0

6.2

5.5

6.2

*£/? 

5.2

4.6

4.3

4.1

3.9

3.45

3.35

3.35

3.8

3.15

3.35

3.35

3.05

3.65

4.9

4.0

3.7

3.15

2.85

3.7

2.95

2.65

2 55

121.25

4.04

6.25

372

Calendar year 1955: Max 10.7 Hin 0 Hean(mgd) 2.10 Hean(cfs) 3.25 Ac-ft 2,350

Fiscal year 1955-56 : Hax 12.9 Hin 0 Mean(mgd) 1.96 Hean(ofs) 3.03 Ao-ft 2,200

* Discharge measurement made on this day.

Note. No gage-height record July 24-28, Mar. 21 to Apr. 19) 

corded range In stage and records for nearby stations.

discharge estimated on basis of re-
32 ISLAND OF KAUAI

Hanalei tunnel outlet near Lihue

Location. Lat 22°05'00", long 159°28'15", on right bank at end of Hanalei tunnel,

2.2 miles downstream from Intake on Kaapoko Stream and 9.8 miles northwest of Llhue.

Records available.--July 1932 to June 1956 In reports of Geological Survey. October 1925 

to June 1932 in files of Lihue Plantation Co.

Gage. Water-stage recorder and sharp-crested weir. Altitude of gage is 1,210 ft (from 

tunnel-profile).

Average discharge. 24 years (1932-56), 19.9 mgd (30.8 cfs).

Extremes.--1932-56: Maximum daily discharge, 64 mgd (99 cfs) Apr. 11, 25, 26, 1942; no

 flow Aug. 27, 1938, Apr. 4-9, 1945, June 23, 1948.

Remarks.--Records good. Tunnel diverts water from Kaapoko Stream and Hanalei River and

 empTies into North Branch of North Fork Wailua River, from which it is later diverted 

and used for irrigation in vicinity of Lihue and Kapaa. Flow regulated by spillway and 

headgates.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

0.93

1.42

.78

,51

.44

3.45

.51

.51

.39

.39

.39

.28

.18

728

.48

.68

.39

.28

.18

.18

.18

.18

.28

.28

.28

.39

.43

.18

4^0 oVj

* '-o

.37

19.50

0.629

0.973

60

Aug.

~7TS 0.18

6.1

.51

.28

2.0

.28

.39

.39

.78

.51

.39

.51

1.27

1.26

.64

.28

.51

1.65

9.1

2.2

.93

.78

.93

2.05

.93

.78

.93

.78

.64

.64

38.80

1.25

1.93

119

Sept.

0.39

.51

739

.39

.39

.28

.28

.28

.28

.28

.39

.39

.39

.28

.28

.28

.28

.28

.39

.39

.28

.28

.28

.28

.28

.28

.28

.18

7TS

39

9.53

0.318

0.492

29

Oct.

0.39 

.78

.64

.78

.39

.39

.39

.39

.28

.18

.18

.18

.09

755

.18

.39

.18

.09

.18

.18

.18

.18

.18

.28

.39

.18

.28

.28

.51

-Tel 1.66

11.30

0.365

0.565

35

Nov.

0.76 

.51

.39

.39

.28

.28

.28

3.75

4.4

1.60

4.3

l^i

.93

.39

.28

.28

.51

.51

.39

.28

.39

.39

.39

.28

.28

.28

.28

.39

.39

. 28

33.76

1.13

1.75

104

Dec.

0.39 

.39

.39

.28

.28

.18

.24

.28

.28

.28

.28

.28

.28

.28

.39

.28

.18

.18

.64

759

.44

.18

.09

709

.09

.09

.09

.18

.28

. 28

.39

8.37

0.270

0.418

26

Jan.

0.28 

.28

-O8

.18

.18

.18

.28

.28

.28

.28

.72

.93

.51

.28

.39

.28

.28

.18

.18

.18

.18

.18

.18

.72

4^

1.08

.51

.28

.28

. 28

. 18

15.10

0.487

0.754

46

Feb.

*#

.18

.28

.28

.39

.28

.28

.22

.18

.18

.39

.39

.28

.28

2.15

2.7

1.20

.51

.39

.28

.28

.63

.51

1.37

.78

.78

.51

.39

16.55

0.571

0.883

51

Mar.

0.63 "739"

.28

725

.28

.28

,28

.28

.28

.28

.28

.28

.28

.28

.28

.28

.28

.28

.28

.39

.28

.28

.28

.28

.28

.28

.28

.28

.28

. 28

.39

9.36

0.302

0.467

29

Apr.

0.28 

.28

.28

.28

.28

.18

.18

.18

.18

.09

.12

.09

.09

.09

.09

.18

.41

.43

725

.18

.18

.18

.18

.18

.18

.18

.28

.28

.28

. 28

6.37

0.212

0.328

20

May

~7I5 0.18 

.18

.18

.18

.28

.39

.39

.18

.18

.28

.18

.18

.18

.28

.18

.18

.18

.18

.18

.28

.28

.18

.18

.18

.18

.18

Jl

.28

. 28

7.33

0.236

0.365

22

June

0.28 ~728

.28

.28

.33

.28

.45

.28

.28

.28

.28

.28

.28

.28

.28

.51

739

.39

.39

.28

.28

.39

.51

.51

.51

.39

.39

.28

.28

.28

10.20

0.340

0.526

31

Calendar year 1955 . Max 14.3 Min 0.09 Mean(mgd) 1.52 Mean(cfs) 2.35 Ac-ft 1,70O

Fiscal year 1955-56 : Max 9.9 Min O.O9 Mean(mgd) 0.509 Mean(cfs) 0.788 Ac-ft 572
ISLAND OF KAUAI 33

Hanalei River at altitude 625 ft, near Hanalei

Location. Lat 22°07'10", long 159°28'05", on right bank 0.4 mile downstream from Kaapoko 

Stream and 6.2 miles southeast of Hanalei.

Drainage area. 7.4 sq mi.

Records available.--January 1914 to January 1952, July 1952 to August 1955 (destroyed by 

flood of Nov. 12-13, 1955).

Gage. Water-stage recorder. Altitude of gage is 625 ft (from topographic map). Prior to 

July 20, 1921, at site 300 ft downstream at same datum.

Average discharge. 36 years (1918-51, 1952-55), 46.7 mgd (72.3 cfs).

Extremes. 1914-56: Maximum discharge observed, at least 9,200 mgd (14,200 cfs) Jan. 3, 

1952 (gage height, at least 13.0 ft, from floodmark), from rating curve extended above 

70 mgd on basis of slope-area determination at gage height 10.12 ft, but may have been 

greater Nov. 12-13, 1955, when flood of undetermined magnitude destroyed station; minimum, 5.8 mgd (9.0 cfs) Apr. 28, May 1-3, 1926.

Remarks.--Records good except those above 70 mgd, which are fair. Since 1925, Hanalei 

tunnel has diverted water from Hanalei River and its tributary Kaapoko Stream at points 

about 2 miles above station, for irrigation in vicinity of Lihue.

Revisions (fiscal years). WSP 1289: 1948(M).

Discharge, In million gallons a day, July to August 1955

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

Mean:

mgd

cfs

Ac-ft

July

36.5

45

35

38.5

52.5

"49 182

60

43

43

43

48

49

61

87

88

70

64

49

52

43

40

38.5

40

57

59

68

60

182

64

66

1,893.0

61.1

94.5

5,810

Aug.

49

51

209

56

52

98

49

60

59

86

60

52

54

92

(*)

_

-

_

-

-

_

-

-

-

-

_

_

_

_

_

-

_

-

-

-

Sept. Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June

Calendar year . Max Mln Mean(mgd) Mean(cfs) Ac-ft

Fiscal year : Max Mln Mean(mgd) ,Mean(cfs) Ac-ft

* Discharge measurement made on this day.
34 ISLAND OF KAUAI

Discharge measurements at points oothert than gaging stations

Measurements of streamflow on the island of Kauai made at points other than regular 

gaging stations are given in the following table. Most of these measurements were made 

during periods of base flow when streamflow is primarily from ground-water storage. Measurements believed to have been made under base-flow conditions are identified by an asterisk (*) to the left of the discharge figure. The measurements when correlated with the 

simultaneous discharge of a nearby stream when continuous records are available will give 

a picture of the low-flow potentiality of stream. The column headed, "Measured previously 

shows the fiscal years in which measurements were made at the same, or practically the 

same, site.

Discharge measurements made at points other than gaging stations on the island of Kauai during 

fiscal year July 1955 to June 1956

Stream

Hanalei 

ditch. 

Third Left 

Branch 

Kalalau 

Stream a/ 

Honopu 

Stream.

Milolii 

Stream.

Tributary to

Kalihiwai 

Reservoir. 

Kalalau 

Stream.

Pacific 

Ocean.

....do......

Location

Lat 22 "11 '10", long 159 "2 6 '10" at 

Kalihiwai Reservoir, near Kilauea. 

Lat 22 "10 '30", long 155°38'5O", 

1OO ft downstream from ford on 

Kalalau trail and 1O miles southwest of Hanalei. 

Lat 22 "10 '00", long 159 "40 '25", 

3OO ft above mouth, 11 miles north 

of Mana, and 11.5 miles southwest 

of Hanalei. 

Lat 22°09'OO", long 159 "43 ' 30", near 

mouth, 9.5 miles north of Mana and 

15 miles southwest of Hanalei.

Measured 

previously 

(fiscal 

years )

1955 

1946-49

1946-48, 

1951, 

1954-55

Date

Oct. 27 

Aug. 12

Aug. 13 

Aug. 12

Discharge

Million 

gallons 

a day

9.37 

*1.35

2.72 

*1.70

Cubic feet 

per 

second

14.5 

*2.09

4.21 

*2.63

* Base flow.

a Formerly published as "Second Left Branch Kalalua Stream."
ISLAND OP OAHU 35 

Kaukonahua ditch near Wahiawa

Location.--Lat 21°30 I 45", long 157°'59'20", on left bank 3 miles northeast of Wahiawa. 

Records available.--March 1947 to June 1956.

Gage. Water-stage recorder and Parshall flume. Altitude of gage is 1,100 ft (from topographic map).

Average discharge. 9 years, 2.92 mgd (4.52 cfs).

Extremes.--1947-56: Maximum daily discharge, 10.1 mgd (15.6 cfs) Jan. 27, 1948; no flow 

at times.

Remarks. Records excellent except those for period of no gage-height record, which are 

poor. Ditch diverts water from North Fork Kaukonahua Stream for domestic use.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfa

Ac-ft

July

4.7

5.4

4.7

4.6

4.3

2.75

1.77

2795

4.6

4.3

4.2

3.85

4.1

4.6

6.3

5.6

4.6

5.2

4.2

5.4

5.6

4.5

4.0

5.0

6.1

5.9

7.4

678 

6.0

5.5

5.6

150 . 52

4.86

7.52

462

Aug.

5.2

5.4

5.9

5.2

5.2

5.2

4.8

4.8

5.0

5.9

5.7

5.0

5.5

6.0

5.6

5.2

5.0

5.5

*6Ji

6.0

5.4

5.1

5.0

5.9

5.6

4.8

4.7

4.6 

4.6

4.5

4.3

162.7

5.25

8.12

499

Sept.

4.8

5.7

5.0

5.5

4.7

4.5

4.2

4.3

4.0

3.75

3.5

3.5

3.3

3.2

3.65

4.2

3.1

3.1

3.3

3.2

2.7

4.3

3.2

2.7

2.5

2.3

2.2

H4.7

111.90

3.73

5.77

343

Oct.

4.8

6.0

471

5.0

4.7

3.75

3.3

3.0

2.8

2.8

5.2

4.3

*3.5

3.4

3.0

3.1

2.8

2.5

2.4

2.3

2.2

2.1

371

3.3

3.75

3.0

4.5

2.9

3.1

2.3

2.5

105.50

3.40

5.26

324

Nov.

3.5

2.2

1.94

1.69

1.61

1.46

1.39

1.39

3.7

3.1

4.1

3.1

2.6

4.1

3.5

3.3

5.5

5.5

4.2

3.4

3.6

3.75

3.3

3.0

2.8

2.7

2.8

2.7 

2.6

2.5

91.03

3.03

4.69

279

Dec.

2.5

2.5

2.4

2.3

2.2

 2.1

2.1

2.1

2.1

2.05

2.1

2.05

1.94

1.94

1.85

1.77

1.77

1.69

2.15

UL

3.0

2.5

1.94

1.94

1.85

1.77

1.77

1.69 

1.77

2.3

2.2

66.44

2.14

3.31

204

Jan.

1.42

.58

.36

1779

3.2

2.9

2.8

2.8

2.8

2.6

2.6

6.2

476

3.6

3.2

4.0

3.1

2.8

2.6

2.5

2.4

2.2

2.1

1.94

4.2

4.2

3.2

2.9 

3.75

3.2 *3.2

89.74

2.89

4.47

275

Feb.

3.0

3.3

3.3

3.2

3.2

3.55

4.2

3.3

3.1

3.65

3.55

4.1

3.85

4.0

3.85

5.3

4.5

2.75

1.25

1.06

2.9

4.6

4.8

6.4

7.0

1.69

1.77

1.65 

2.9

101.72

3.51

5.43

312

Mar.

1.92

1.71 276^

2.5

3.15

4.0

3.85

3.75

4.3

376

3.75

3.3

3.2

3.0

3.0

2.5

2.3

2.1

2.8

2.85

2.4

2.2

2.5

2.6

2.9

2.7

2.5

2.2 

2.3

2.2

2.1

86.78

2.80

4.33

266

Apr.

2.1

1.94

2.3

2.7

2.7

2.8

2.7

2.6

2.6

2.5

2.5

2.25

1.18

1.12

1.18

3~45 1.06

4.6

4.3

5.4

5.6

570

4.6

4.3

4.2

4.5

*4.1

3.6

3.4

3.1

94.38

3.15

4.87

290

May

2.9

3.0

3.0

3.0

2.9

4.1

2.0 27o

4.6

3.0

4.0

2.0

2.0

2.0

3.0

2.5

4.0

3.3

2.7

3.1

4.2

5.9

2.5

6.0

3.0

2.5

5.8

fc«

4.0

3.0

105.0

3.39

5.25

322

June

2.7

3.6

2,0

2.0

2.0

3.0

2.0

5.5

5.5

4.0

*3.0

3.0

3.0

3.0

3.4

4.0

4.5

3.5

3.0

4.2

3.1

3.0

3.0

3.0

6.5

6.1

6.0

3.5 

3.0

3.0

106.9

3.56

5.51

328

Calendar year 1955. Max 8.7 Min 0.72 Mean(mgd) 4.14 Mean(efs) 6.41 Ac-ft 4,640

Fiscal year 1955-56: Max 7.4 Min 0.36 Mean(mgd) 3.48 Mean(efs) 5.38 Ac-ft 3,900

* Discharge measurement made on this day. 

Note. No gage-height record Apr. 28 to J 

konahua Stream.

June 30; discharge estimated on basis of records for Kau-
36 ISLAND OP OAHU

North Fork Kaukonahua Stream near Wahiawa

Location. Lat 21°30'55", long 157°59'20", on left bank 3 miles northeast of Wahiawa and 

8.6 miles north of Pearl City.

Drainage area.--4.9 sq mi.

Records available. September 1946 to June 1956.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 970 ft (from topographic map) .

Average discharge. 9 years (1947-56), 22.8 mgd (35.3 cfs).

Extremes. Maximum discharge during year, 1,870 mgd (2,890 cfs) Feb. 25 (gage height, 

12.72 ft), from rating curve extended above 180 mgd on basis of slope-area determinations at gage heights 8.39 and 15.S5 ft; minimum, 0.51 mgd (0.79 cfs) Nov. 6-8.

1946-56: Maximum discharge, 2,400 mgd (3,710 cfs) Nov. 28, 1954 (gage height, 15.55 

ft) , from rating curve extended above 180 mgd as explained above; minimum, no flow at 

times in 1953.

Remarks.--Records good. Poamoho tunnel diverts floodwater from Poamoho Stream into North 

Fork Kaukonahua Stream about 1 mile above station. Kaukonahua ditch diverts water 

2.6 miles above station for domestic use in Wahiawa (see preceding page).

Revisions (fiscal years). WSP 1289: 1947-52.

Rating table, fiscal year 1955-56 (gage height, in feet, and 

discharge, In million gallons a day

0.3

.4 

.5 

.6 

.8

1.0

0.39

.80

1.45

2.35

5.0

9.1

1.3 

1.6 

2.0 

3.0 

6.0

20

37.5

74

218

718

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

Cf£

Ac-ft

July

10.0

39.5

7.9

5.5

3.75

140

T4.1

9.3

4.6

3.8

3.4

2.9

3.25

5.1

29

26

6.6

17.2 

4.6

14.3

26.5

4.7 

3.95

8.0

39.5

47

98

76

56

21

32.5

763.95

24.6

38.1

2,340

Aug.

11.5

58

93

15.0

20

26

8.6

7.5

10.1

35

40

10.6

28.5

114

26.5

13.2

10.6

32

*148

181

22

13.9 

10.0

22.5

18.1

9.4

7.5

6.4

6.4

5.4

4.7

1,015.4

32.8

50.7

3,120

Sept.

9.1

43

10.0

30

8.7

5.5

4.4

6.4

4.6

3.15

2.8

2.8

2.45

2.25

2.35

9.1

2.35

1.81 

2.15

2.9

1.72

8.7 

2.6

1.63

1.26

1.12

1.06

1.00

10.0

20

204.90

6.83

10.6

629

Oct.

8.9

T?.6

17.3

10.1

4.6

2.6

2.1

1.63

1.63

36

10.4

*2.95

2.7

1.90

1.90

1.99

1.63 

1.26

1.06

.93

IT!

3.45

3.95

2.7

21.5

2.5

1.92

1 ,26

.86

218.23

7.04

10.9

670

Nov.

5.4

1.42

.76

.68

.60

51 tsT

.68

55

8.8

21.5

8.0

 4.6

81

22.5

11.9

98

105 "32

14.6

24.5

37 

31.5

42

14.6

10.6

19.7

12.6

11.3

7.3

684.56

22.8

35.3

2,100

Dec.

11.9

7.7

5.5

4.7

3.95

3.5

3.25

3.15

2.9

2.7

2.8

3.15

2.1

1.81

1.63

1.38

1.26

1JL9 

20.5

218

77

44 

13.3

11.8

9.7

7.0

6.3

5.4

4.7 123' 10 9

616.17

19.9

30.8

1,890

Jan.

29

13.2

8.4

7.7

5.0

3.4

2.9

2.7

2.8

2.6

2.6

136

20

7.4

4.7

8.1

4.7

3.25 

2.9

2.6

2.35

2.25 

2.15

7?*~

43

8.7

3.95

26

11.5 

*9.2

460.15

14.8

22.9

1,410

Feb.

H

9.4

4.6

6.0

26.5

45

7.2

4.4

8.9

18.6

36

34

34.5

15.6

329

252

113 

43

30.5

21.5

14.6 

31

317

685

231

220

94

208

 

2,846.8

98.2

152

8,740

Mar.

199 -70

46

37.5

30.5

25.5

22

19.6

78

21.5

30.5

15.7

13.5

12.5

11.8

10.9

10.3

9^1 

63

73

15.9

11.5 

28.5

32

111

78

87

29

53

39

24.5

1,309.9

42.3

65.4

4,020

Apr.

23.5

15.0

13.2

10.9

10.9

15.6

8.2

6.3

6.1

5.7

5.4

5.0

11.0

6.4

22.5

17.8

65

7.7 

4.6

58

69

T3.8 

6.6

4.8

3.95

6.9

3.7

2.8

2.35

2.1

434.80

14.5

22.4

1,330

May

1.90

1.54

1.38

1.32

1.26

1.86

48

35

7.4

94

194

48

75

153

109

31.5

20

15.7 

14.3

10.9

8.8

6.1 

39.5

30

50

27.5

14.2

25

41

20.5 

47

1,174.66

37.9

58.6

3,600

June

17.8

15.4

82

43

36

65

63

27.5

30.5

71

57

*42

40

33

19.6

21

28.5

39.5 

22.5

12.8

15.9

67 

47

27

15.7

16.9

50

21.5

13.5

20.5

1,062.1

35.4

54.8

3,260

Calendar year 1955: Max 352 Min 0.51 Mean(mgd) 20.4 Mean(cfs") 31.6 Ac-ft 22,790

Fiscal year 1955-56: Max 683 Min 0.51 Mean(mgd) 29.5 Mean(cfs) 45.6 Ac-ft 33,110

Peak discharge (base, 1,100 mgd). Dec. 31 (11:30 a.m.) 1.520 mgd (2,350 cfs), 10.82 ftj Feb. 17 

(12 m.) 1,170 mgd (1,810 cfs), 8.80 ft; Feb. 25 (8 a.m.) 1,870 mgd (2,890 cfs), 12.72 ft.

* Discharge measurement made on this day.
ISLAND OF OAHU 37

South Fork Kaukonahua Stream near Wahiawa

Location. Lat 21°30'05", long 157°56'50", on right bank at Canon Dam, 5.4 miles east of 

Wahiawa, and 7.7 miles north of Pearl City.

Drainage area. 1.9 sq mi.

Records available. May 1944 to June 1956.

Gage. Water-stage recorder and masonry dam control. Altitude of gage is 1,070 ft (from 

topographic map).

Average discharge. 12 years, 7.20 mgd (11.1 cfs).

Extremes. Maximum discharge during year, 844 mgd (1,310 cfs) Dec. 31 (gage height, 

6.21 ft), from rating curve extended above 15 mgd as explained below; minimum, 

0.34 mgd (0.53 cfs) Nov. 7, 8, Dec. 19.

1944-56: Maximum discharge, 1,560 mgd (2,410 cfs) Nov. 28, 1954 (-gage height, 

8.55 ft), from rating curve extended above 15 mgd by test on model of station site; 

minimum, 0.01 mgd (0.02 cfs) Feb. 21, 1945, Nov. 14, 15, 1953.

Remarks. Records fair.

Rating table, fiscal year 1955-56 (gage height, in feet, and 

discharge, in million gallons a day)

0.5 

.6 

.7

1.0

0.30 

.47 

.68

2.3

1.1 

1.4 

1.7 

2.0 

2.4

5.5

19.2

38

64

109

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

9.5

8.9

2.3

2.3

11.6

11.6

2.05

1.56

1.33

1.17

1.09

1.09

2.75

8.3

11.2

14.1

3.25

6.6

2.05

12.0

18.2

2.75

2.3

4.2

20.5

11.0

24

12.5 

7.6

11.3

249.09

8.04

12.4

764

Aug ;

4.7

16.8

11.0

4.3

3.95

4.3

2.75

7.0

9.6

39

26

8.1

10.8

34

8.9

6.8

7.6

15.8

46

89

8.9

6.8

7.2

5.9

5.9

4.3

4.7

4.7

5.6

3.6

416.70

13.4

20.7

1,280

Sept.

10.1

37.5

ToTo

28.5

6.8

5.1

4.3

4.3

3.6

3.3

2.75

3.3

2.5

2.5

3.95

3.3

1.73

2.95

5.2

2.05

1.89

4.8

1.73

1.21

1.01

.95

272^ .86

9.6 

9.9

 

177.88

5.93

9.18

546

Oct.

5.9

13.0

3.0

10.5

10.7

3.0

2.3

1.73

1.45

1.68

24.5

2.5

1.84

1.56

1.63

1.41

1.21

1.09

1.01

.92

.83

1.92

2.1

2.8

1.51

1.93

.93

2.2 

.73

.64

116.42

3.76

5.82

357

Nov.

*0.86

.61

.49

.43

.39

.37

.36

.36

18.7

2.75

6.7

6»5

liV?

16.4

3.3

2.8

17.3

27

T3.8

4.7

6.2

8.9

6.8

7.6

3.0

E.5

4.5

2.3

1.73 

1.45

 

170.07

5.67

8.77

522

Dec.

1.33

1.29

1.10

.95

.83

.77

.73

.68

.64

.59

.61

.59

.53

.47

.43

.41

.37

.36

14.6

60

26

23.5

3.3

3.3

2.3

1.73

1.45

1.25

*1.32 

3.65

36.5

191.58

6.18

9.56

588

Jan.

8.0

2.8

1.45

1.45

1.25

.92

.77

.73

.80

.75

.66

~4.4 41

1.56

1.17

5.8

1.34

.92

.75

.68

.61

.57

.53

.51

loTT"

25.5 '2.0

2.2

12.7 

4.3

2.6

139.12

4.49

6.95

427

Feb.

1.13

2.45 s'.e

4.2

2.95

18.0

24.5

3.3

2.5

1.84

3.25

14.7

7.5

6.2

3.3

62

55

46

12.0

8.5

5.9

5.1

6.1

42

102

37.5

44

17.6

36.5

 

579.62

20.0

30.9

1,780

Mar.

34

*13.8

9.8

8.5

8.1

6.8

5.9

5.5

22.5

7.2

9.9

4.3

3.6

3.3

3.6

2.75

2.5

2 .3

18.2

4.3

4.7

17.3

11.0

10.8

7.7

9.2

4.7

30 

9.7

5.5

293.55

9.47

14.7

901

Apr.

7.4

3.3

2.75

2.5

2.5

6.3

2.75

1.84

1.84

2.3

1.63

1.50

2.85

1.50

4.1

4.1

18.8

2.3

2.1

35.5

25.5

5.3

3.3

2.3

2.05

4.1

1.73

1.50

1.33 

1.29

 

156.26

5.21

8.06

480

May

1.13

.95

.86

.77

.77

2.0

17.3

37.5

4.3

7.1

27.5

7.6

18.8

12.7

9.4

4.7

3.6

3.3

4.7

2.3

1.84

2.05

8.2 '

7.2

8.5

10.0

8.5

7.8

50 

15.2

36

322.57

10.4

16.1

930

June

14.0

11.1

*2

20.5

13.3

25.5

15.3

16.5

12.1

20.5

33.5

26

30.5

25

11.6

9.8

16.0

14.7

12.3

7.6

16.2

24

25.5

12.0

8.5

7.6

9.8

7.2

879 

15.1

512.6

17.1

26.5

1,570

Calendar year 1955. Max 129 Min 0.36 Mean(mgd) 7.51 Mean(cfs) 11.6 Ac-ft 8,420

Fiscal year 1955-56: Max 102 Min 0.36 Mean(mgd) 9.09 Mean(cfs) 14.1 Ac-ft 10,200

:ak discharge (base, 400 mgd). Aug. 19 (11:30 p.m.) 580 mgd (897 cfs), 5.12 ft; Dec. 31 

(10 a.m.) 844 mgd (1,310 cfs), 6.21 ft; Feb. 25 (7:30 a.m.) 580 mgd (897 cfs), 5.07 ft.

" Discharge measurement made on this day.

Pe
38 ISLAND OP OAHU 

South Fork Kaukonahua Stream above Wahiawa Reservoir, near Wahiawa

Location.--Lat 21°29'35", long 157°59'55", on right bank 2 miles southeast of Wahiawa and 

7.5 miles north of Waipahu.

Drainage area. 5.2 sq mi.

Records available. October 1946 to June 1956.

Gage,--Water-stage recorder and concrete control, 

sea level, datum of 1929.

Datum of gage is 844.51 ft above mean

Average discharge.--9 years (1947-56), 16.4 mgd (25.4 cfs).

Extremes. Maximum gage height during year, 22.55 ft Feb. 25, backwater from Wahiawa Reservoir (discharge not determined); minimum discharge, 1.37 mgd (2.12 cfs) Dec. 18, 19.

1946-56: Maximum discharge, 2,840 mgd (4,390 cfs) Nov. 28, 1954 (gage height, 18.16 

ft), from rating curve extended above 100 mgd; maximum gage height, that of Feb. 25, 

1956; minimum discharge, 0.27 mgd (0.42 cfs] Apr. 11-15, 26, 28, 1954.

Remarks. Records good except those for period of no gage-height record , which are fair. 

Ku Tree Reservoir (capacity, 293 million gallons) and Koolau Reservoir (capacity, 

43 million gallons) located on tributary, diverts small quantity of water 0.1 mile 

below Canon Dam for domestic use, fire protection, and as a standby in case of emergency. Excess water spills back into stream.

Revisions (fiscal years). WSP 1249: 1951(M), drainage area.

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

Cf£

Ac-ft

July

10.5

16.9

8.0

7.2

6.6

26

7.2 

6.2

5.9

5.7

5.5

s!2

18.3

40

30

12.0

17.9

9.5

17.7

26.5

9.8

8.0

8.2

27

24

46

63

24.5

19.7 

21

542.7

17.5

27.1

1,670

Aug.

15.3

14.3

32

13.0

12.3

12.0

11.5 

13.2

22.5

58

55

18.4

21

52

20.5

16.4

16.8

24

*44

165

21

17.6

19.5

19.3

19.7

15.6

16.0

15.3

14.1

13.4 

13.4

822.1

26.5

41.0

2,520

Sept.

*15.7

56

T5.1

51

16.4

13.4

12.3 

13.7

12.3

10.9

10.4

10.6

9.8

7.8

5.3

7.3

4.8

4.8

5.8

6.4

4.0

7.1

4.8

3.7

3.2

3.05

2.95

2.85

12.9

14.7

353.05

11.8

18.3

1,080

Oct.

10.4

~9.4 28

20.5

 23

10.4

7.2 

6.2

5.3

4.8

27

*17.7

6.8

5.9

5.0

6.2

4.8

4.2

4.0

3.85

3.55

3.45

4.1

5.1

7.5

11.8

11.2

10.4

10.9

9

0

. O

9.5

297.95

9.61

14.9

914

Nov.

9.5

9.3

9.0

6.3

1.67

1.58

1.51 

T758

29.5

9.1

17.2

9.1

4.7

15.2

12.1

5.6

28.5

55

32

16.4

12.2

18.1

14.1

13.3

8.6

7.6

10.1

8.2

7.7

7.2

381.94

12.7

19.6

1,170

Calendar year 1955. Max 284 Mln 1.37

Dec.

6.8

6.6

6.4

6.2

*5.9

5.7

5.5 

5.3

5.3

5.1

5.0

4.8

4.8

4.7

3.75

1.51

1.44

1.37

7.2

155

*100

49

13.5

10.4

8.5

6.8

8.1

17.6

29

30 

55

556.27

17.9

27.7

1,710

Jan.

24

15.9

10.9

10.6

10.4

9.5

9.0 

8.8

8.8

8.8

5.6

90

16.1

7.1

5.0

8.7

5.5

3.85

3.45

3.05

2.85

2.65

2.55

2.45

12.2

31

6.9

3.45

14.4

7.5 

7.1

358.10

11.6

17.9

1,100

\ Feb.

3.55

3.45

6.9

5.6

6.6

10.7

39.5 

6.7

5.5

6.4

5.9

18.2

27.5

12.7

9.8

99

153

118

29

20.5

14.1

11.2

11.5

76

*450

90

110

45

85

_______

1,481 . 30

51.1

79.1

4,550

Mar.

72

40

30

23

20

17

15 

13

40

17

21

9.0

8.0

7.2

6.7

6.0

5.5

5.0

15

*35

9.0

9.4

23

33.5

18.6

18.1

14.0

10.9

27.5

17.7 

12.9

600.0

19.4

30.0

1,840

Apr.

11.8

8.0

7.0

7.6

5.3

8.3

7.2 

5.3

5.7

10.4

16.0

13.4

14.1

8.5

7.8

9.3

22.5

6.8

4.7

36

36.5

T573

6.4

5.1

4.5

5.8 *4.7

3.85

3.55

5.3

301.70

10.1

15.6

926

May

3.3

2.85

2.75

2.55

2.45

4.4

16.9 

42

8.0

5.1

46

11.5

21.5

19.9

18.8

8.3

5.9

5.1

5.7

3.85

3.45

3.3

7.4

8.6

9.4

5.8

14.4

8.2

59

23 

55

434.40

14.0

21.7

1,330

June

20.5

16.3

83

53

26.5

57

25.5 

25

31.5

60

*93

89

66

60

27.5

23

19.9

29.5

19.5

15.3

27.5

52

54

34

19.3

15.6

16.4

15.3

12.0

29 5

1,116.6

37.2

57.6

3,430

Mean(mgd) 17.5 Mean(cfs) 27.1 Ac-ft 19,620

Fiscal year 1955-56: Max 450 Mln 1.37 Mean(mgd) 19.8 Mean(cfs) 30.6 Ac-ft 22,240

Discharge measurement made on this day. 

Note. No gage-height record Feb. 25 to Mar. 21j discharge estimated on basis of records for near 

by stations.
ISLAND OF OAHU 39

Poamoho Stream near Wahlawa

Location. Lat 21°31'25", long 157°58'55", on left bank just below concrete diversion dam, 

3.5 miles northeast of Wahlawa and 9.5 miles north of Walpahu.

Drainage area. 1.8 sq ml.

Records available.--January 1947 to June 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 1,150 ft (from 

topographic map).

Average discharge.--9 years, 3.16 mgd (4.89 cfs).

Extremes. Maximum discharge during year, 650 mgd (1,010 cfs) Feb. 25 (gage height,

4.37 ft), from rating curve extended above 48 mgd by test on model of station site; no 

flow Jan.2,3,6,7.

1947-56: Maximum discharge, 916 mgd (1,420 cfs) Mar. 30, 1947 (gage height, 

5.68 ft), from rating curve extended as explained above; no flow at times.

Remarks. Records good. Poamoho tunnel diverts floodwater into North Fork Kaukonahua 

Stream about 175 ft above station.

Rating tables, fiscal year 1955-56 (gage height, in feet, and discharge,

in million gallons a day) 

(Shifting-control method used May 14 to June 12)

0.0 

.1 

.2 

.3 

.4 

.5 

.6

July 1 to May 10 

0.7

.03

.14

.37

.76

1.44

2.45

1.0 

1.2 

1.4 

1.7 

2.0

3.6

5.2

9.8

16.2

25.5

48

74

May 11 to June 30

0.0 0

.1 .03

.2 .18

.3 .49

.5 1.63

.7 3.6

Note. Same as 

preceding table 

above 0.7 ft.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cfa

Ac-ft

July

1.27

2.55

1.91

1.44

1.06

5.4

.54

.54

.54

.50

.43

.40

.37

.28

.26

.24

.22

.20

.16

.16

.16

.14

06

.18

.18

.20

.20

.20

.18

.18

. 18

20.43

0.659

1.02

63

Aug.

0.18

.29

.24

.20

.20

.20

.20

.20

.20

.20

.20

.20

.20

.26

.22

.22

.22

.22

2.8

.64

.05

1.33

2.65

3.35

2.65

2.1

2.45

1.81

1.62

1.62

1.53

28.45

0.918

1.42

87

Sept.

2.35

4.7

2.0

5.4

1.90

1.36

1.13

1.74

1.48

.94

.82

.82

.76

.71

.76

.94

.66

.58

.71

.94

.58

5.9

T7T3

.66

.54

.50

.46

 40

778

1.44

43.09

1.44

2.23

132

Oct.

0.94

9.5

1.28

2.25

1.71

1.04

.58

.50

.43

.40

3.15

*1.68

.66

.88

.54

.62

.62

.40

.34

.31

.31

.28

728

.90

.78

,83

4.8

.81

.89

.46

.34

38.51

1.24

1.92

118

Nov.

1.25

.40

.28

.22

.20

.18

.16

.22

5.8

2.65

5.5

.24

.16

.20

.12

.09

.08

.08

.06

.06

.05

.05

.04

.04

.04

.04

.04

.04

.04

.04

18.37

0.612

0.947

56

Dec.

0.04

.04

.04

.04

.04

.04

.03

.03

.03

.04

.04

.03

.03

.03

,03

.03

.03

.03

.05

.18

.05

.03

.02

702

.02

.02

.02

.02

.02

.03

3. 85

4.95

0.160

0.248

15

Jan.

0.01

0

0

.01

.01

0

0

.01

.01

.01

.01

.13

.01

.01

.01

.02

.01

.01

.01

.01

.01

.01

.01

.01

.25

.02

.01

.01

.02

.02

.02

0.66

0.021

0.032

2.0

Feb.

~^2 0.01

.01

.01

.01.

.02

.02

.01

.01

.02

.02

.02

.02

.02

.01

5.6

.30

.02

.01

.01

.01

.01

.01

.13

.ZI

1.14

.32

.04

8.1

-

86.93

3.00

4.64

267

Mar.

"702 3.4

.01

75T

.01

.02

.02

.02

.50

.03

.03

.05

.06

.03

.04

.05

.04

.04

.51

.04

.02

.02

.02

.02

.14

.20

.04

.02

.02

.02

.02

5.47

0.176

0.272

17

Apr.

 St. 0.02

.02

.02

.04

3.0

2.8

2.25

2.1

2.0

2.0

1.71

3.4

1.91

4.1

3.2

10.7

2.85

2.45

7.2

8.8

5.1

2.9

2.35

2.0

3.45

2.0

1.71

1.53

1.53

83.3<5

2.77

4.29

255

May

1.36

1.20

1.13

*1.00

.94

1.13

12.3

3.8

2.05

10.5

22

13.7

9.9

22

16.5

6.2

4,0

3.35

3.1

2.6

2.5

2.5

14.1

9.7

9.0

4.5

4.1

9.7

10.6

5.9

219.86

7.09

11.0

675

June

4.4

4.4

11.4

6.5

4.5

7.7

16.2

5.6

4.5

8.4

8.2

*8.2

7.8

7.8

4.8

8.3

4.7

7.7

4.5

3.45

3.6

8.9

9.6

5.0

3.35

3.1

14.3

3.85

3.1

4.9

198.75

6.62

10.2

610

Calendar year 1955. Max 80 Min 0.02 Mean(mgd) 3.29 Mean(cfs) 5.09 Ac-ft 3,680

Fiscal year 1955-56: Max 71 Min 0 Mean(mgd) 2.05 Mean(cfs) 3.17 Ac-ft 2,300

Peak discharge (base, 130 mgd).--July 6 (2 a.m.) 215 mgd (333 cfs), 2.90 ft; Dec. 31 (9:30 a.m.) 

205 mgd (317 cfs), 2.87 ft; Feb. 25 (9 a.m.) 650 mgd (l,010 cfs), 4.37 ft; Feb. 29 (9:30 p.m.) 

132 mgd (204 cfs), 2.46 ft.

Discharge measurement made on this day.
40 ISLAND OF OAHU

Waikele Stream at Waipahu

Location. Lat 21°23 I 10", long 158°00'50", on left bank at Farrington Highway bridge, 

0.3 mile south of Waipahu and 2.5 miles west of Pearl City.

Drainage area.--45.4 sq mi.

Records available.--June 1951 to March 1952 (fragmentary), April 1952 to June 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 2.67 ft above mean sea 

"level, datum of 1929.

Extremes.--Maximum discharge during year, 3,720 mgd (5,760 cfs) Feb. 25 (gage height, 

10.57 ft), from rating curve extended above 470 mgd on basis of slope-area determination at gage height 14.82 ft; minimum, 11.9 mgd (18.4 cfs) Nov. 8.

1951-56: Maximum discharge, 7,220 mgd (11,200 cfs) Nov. 28, 1954 (gage height, 

14.82 ft), from rating curve extended above 470 mgd on basis of slope-area determination of peak flow; minimum recorded, 6.4 mgd (9.9 cfs) Sept. 28-30, 1953.

Remarks. Records good except those for periods of fragmentary or no gage-height record, 

which are fair. Plow regulated by plantation operation.

Rating table, fiscal year 1955-56 (gage height, in feet, and 

discharge, in million gallons a day)

2.1 

2.5

2.7 

3.1

11.3

17.9

31

52

119

3.5

4.0 

4.5 

5.0 

6.0

230

380

530

710

1,110

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

15.6

20

22

21.5

16.4

17.7

15.2

15.2

23

20.5

15.6

16.0

15.6

15.2

15.7

2424"

16.0

16.0

14.9

16.0

17.5

21.5

20.5

17.9

19.0

18.5

17.9

16.8 

20.5

20

566.2

18.3

28.3

1,740

Aug.

16.0

15.2

35

14.9

15.5

19.8

19.0

16.4

16.0

14.5

14.9

16.4

16.4

27

20

15.8

15.8

15.8

20

272

58.5

21.5

17.5

17.1

17.9

16.8

17.9

22

17.5 

17.1

17.5

829.5

26.8

41.5

2,550

Sept.

16.8

16.8

16.8

19.0

19.0

15.2

16.8

16.8

15.6

16.0

17.1

19.0

17.5

17.1

14.9

16.0

17.5

17.9

15.2

14.9

16.4

16.8

17.5

17.9

16.8

15.2

15.2

15.2

15.2 

17.5

499.6

16.7

25.8

1,550

Oct.

17.9

17.9

17.1

16.8

16.0

16.0

16.8

17.5

20

16.0

15.6

16.0

15.6

15.6

16.4

17.9

18.5

15.2

15.2

15.6

16.8

17.5

17.1

15.5

15.0

12.1

isTo

16.8

17.5

16, 8

15.5

502.8

16.2

25.1

1,540

Nov.

15.3

15.3

12.7

1579

17.5

17.5

12.7

12.7

29.5

40

88

55

50

26.5

44

26.5

25

35.5

24

20.5

19.6

20.5

22

22

19.0

21.5

20.5

19.2

20.5

19.7

738.6

24.6

38.1

2,270

Dec.

18.1

17.1

19.0

18.5

16.1

14.5

14.5

14.9

15.6

17.9

16.4

*15.8

13.5

15.5

1373

14.5

17.5

16.4

26

429

488

124

62

48

47

38

35.5

31

29 

29

73

1,744.4

56.3

87.1

5,350

Jan.

65

61

55.5

28

26.5

26

26

24

51

24

24

ISO- 306

58

57.5

58

42

31

27

26.5

26

27

27

25

77

140

64

58

47 

55

48

1,650.0

55.2

82.5

5,060

Feb.

54.5

55.5

53.5

35.5

55.5

44

98

45

55.5

46

48

59

117

50

42

159

229

126

85

51

37.5

30

27

78

1,110

a229

a!35

f97

79

3,223.5

111

172

9,890

Mar.

145

67

46

41

39

35.5

33

29.5

64

40

33

29.5

26

24

23.5

23

23.5

26

25

25.5

29.5

25.5

22.5

55.5

28

26

22

22.5

3I~ 19.0 

31

1,089.5

35.1

54.5

3,340

Apr.

29

22

17.9

17.5

17.1

16.8

18.5

21.5

18.5

17.9

17.1

16.4

16.8

17.5

22

17.1

23.5

17.9

15.2

1971

40" 65

22

16.2

16.8

17.1

17.1

19.0

19.6

17.9

650.3

21.0

52.5

1,930

May

16.8

16.4

15.2

15.6

16.6

19.6

16.0

14.1

14.1

15.8

16.5

17.9

19.0

17.1

19.4

17.5

16.8

16.0

15.6

17.5

16.8

16.0

16.4

16.4

16.0

16.4

19.0

17.5

15.2

14. 8

14. 8

510.8

16.5

25.5

1,570

June

15.6

17.1

21

18.6

17.1

16.0

15.6

16.0

17.9

17.9

18.5

17.9

16.8

16.8

17.9

18.5

18.5

17.1

17.4

15.3

14.1

15.6

22

20~.5

16.8

14.9

14.5

15.6

17.5

20.5

519.5

17.3

26.8

1,590

Calendar year 1955: Max 740 Min 12.1 Mean(mgd) 35.3 Mean(cfs) 54.6 Ac-ft 39,490

Fiscal year 1955-56: Max 1,110 Min 12.1 Mean (mgd) 34.2 Mean (cfs) 52.9 Ac-ft 38,360

Peak: discharge (base, 700 mgd). Aug. 20 (6 a.m.) 950 mgd (1,470 cfs), 5.55 ft; Dec. 21 (2:30 a.m.) 

1,250 mgd (1,900 cfs), 6.50 ft; Feb. 25 (11:30 a.m.) 3,720 mgd (5,760 cfs), 10.57 ft.

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Waiawa Stream.

f Fragmentary gage-height recordj discharge computed from partly estimated gage heights.
ISLAND OF OAHU 41

Pearl Harbor Springs at Waiawa, near Pearl City

Location.--Lat 21°23'35" , long 157°59'10", on right bank at rear of Oahu Sugar Co.'s pumping plant 9, 0.7 mile west of Pearl City and 9.8 miles northwest of Honolulu.

Records available. March 1931 to June 1934, July 1937 to June 1956.

Sage. Water-stage recorder and sharp-crested weir. Datum of gage is 0.73 ft below mean 

sea level, datum of 1929.

Average discharge. 82 years (1931-34, 1937-56), 12.2 mgd (18.9 cfs) , unadjusted for pumpage.

Extremes.--1931-34. 1937-56: Maximum daily discharge, 18.7 mgd (28.9 cfs) Feb. 27, 1949; 

minimum daily, 6.0 mgd (9.3 cfs) for several days in 1941 and 1947.

Remarks. Records good. Oahu Sugar Co.'s pump 9 diverts about 3 mgd at times when water 

is needed for irrigation of sugarcane. Surface runoff from floods not included in fig 

ures of discharge given below.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

13.9 

15.6

15.6

15.6

13.5

13.5

13.5

13.5

13.9

15.2

13.9

15.2

15.2

15.2

15.2

13.5

15.2

13.5

13.5

13.5

13.5

13.5

12.7

14.8

13.1

13.1

12.0

11.6

1371

14.3 

14.8

434.2

14.0

21.7

1,330

Aug.

14.8 

14.8

14.8

14.8

12.7

14.3

14.3

13.1

12.7

*13.1

12.3

13.9

13.9

13.9

12.3

13.9

13.9

13.9

13.9

13.9

13.9

13.9

13.9

13.9

13.9

13.9

12.3

13.9

12.0

T570

12.7

421.5

13.6

21.0

1,290

Sept.

12.7 

12.3

12.7

13.9

1379

12.3

12.3

12.0

12.0

12.3

13.9

10.9

TT76

12.3

13.9

13.9

13.9

13.9

13.9

12.7

12.7

12.0

13.5

12.7

13.9

12.0

12.0

12.0

11.6

13.1

382.8

12.8

19.8

1,170

Oct.

15.9 

13.9

12.3

13.9

13.9

13.9

13.9

13.9

13.9

13.5

12.3

12.3

11.6

11.3

12.0

13.5

12.7

13.1

11.3

11.3

10.9

T37T

13.1

13.1

12.7

13.5

13.5

12.7

13.1

13 5 

12^0

399.6

12.9

20.0

1,230

Nov.

12.0 

11.6

11.6

10.5

13.1

13.1

9.8

10T2

12.7

13.9

13.9

13.9

13.9

13.9

13.9

13.9

13.9

14.3

14.8

15.6

15.6

15.2

14.8

14.8

14.3

14.3

14.3

14.3

14.3

13 9

406.3

13.5

20.9

1,250

Dec.

12.0 

*12.0

13.9

13.9

12.3

11.6

11.3

11.3

12.0

13.9

13.9

10.9

10.2

1072

11.6

12.0

13.9

13.9

11.6

14.5

14.3

14.3

14.3

14.3

14.3

14.3

14.3

14.3

14.3

14.3 

14.3

404.0

13.0

20.1

1,240

Jan.

14.3 

1473

14.8

14.8

14.8

14.8

14.8

14.8

14.8

14.8

14.8

14.8

14.8

14.8

14.8

14.8

14.8

15.2

15.2

15.2

15.2

15.2

*15.2

15.2

15.2

15.2

15.6 TsTe

15.6

15.6 

15.6

465.4

15.0

23.2

1,430

Feb.

15.6 

T576

15.6

15.6

15.6

15.6

15.6

15.6

15.6

15.6

15.6

15.6

15.6

15.6

15.6

15.6

16.0

16.0

16.0

15.6

15.6

15.6

15.6

15.6

16.0

16.0

15.6

15.6

15.6

454.4

15.7

24.3

1,390

Mar.

15.6 

1576

15.6

15.6

15.6

15.6

15.2

15.2

15.2

15.2

15.6

15.6

15.6

15.6

15.6

15.2

14.8

14.8

14.8

14.8

14.8

14.3

14.3

14.3

14.3

14.3

14.3

14.3

13.9

T379

14.3

463.8

15.0

23.2

1,420

Apr.

14.3 

14.3

14.3

14.3

14.3

14.3

14.3

14.3

14.3

14.3

13.9

13.5

T375

13.5

13.5

13.5

13.5

13.5

13.5

13.9

13.5

13.5

13.5

13.5

13.5

13.5

13.5

13.5

13.5

13.5

413.8

13.8

21.4

1,270

May

m13.1

13.1

13.1

13.1

13.1

13.1

13.1

13.1

13.1

12.7

12.7

12.3

12.0

12.0

10.2

10.2

11.6

13.1

9.5

1072

10.9

9.8

9.8

12.7

13.1

11.3

11.3

10.9

9.8

370.6

12.0

18.6

1,140

June

11.6 

13.1

13.1

10.9

TT76

12.0

13.1

13.1

13.1

13.1

10.9

11.3

11.6

12.0

13.1

13.5

1375

11.3

12.0

10.9

10.9

11.3

13.1

13.1

11.3

11.3

10.9

10.9

11.3

12.3

361.2

12.0

18.6

1,110

Calendar year 1955. Max 16.8 Min 9.8 Mean(mgd) 14.3 Mean(cfs) 22.1 Ac-ft 15,990

Fiscal year 1955-56: Max 16.0 Min 9.5 Mean(mgd) 13.6 Mean(cfs) 21.0 Ac-ft 15,270

Discharge measurement made on this day.
42 ISLAND OF OAHU 

Morikone pond outlet at Pearl City

Location. Lat 21°23'30', long 157°59'10", on left bank of Walawa Springs flow, 0.7 mile 

west of Pearl City, 1.5 miles east of Waipahu, and 9.8 miles northwest of Honolulu.

Records available. August 1951 to June 1956.

Gage. Water-stage recorder and submerged orifice control.

Extremes . 1951-56: Maximum daily discharge, 2.1 mgd (3.2 cfs) Jan. 12, 1956; no flow on 

Aug. 31, 1952.

Remarks. Records poor. Surface runoff from floods not included in figures of discharge 

given below.

Revisions {fiscal years). WSP 1399: 1952-53.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cf£

Ac-ft

July

0.64

.70

.70

.70

.56

.56

.56

.56

.60

.70

.65 

.68

.68

.68

.66

.68

.66 

.72

754

.64

.71

.66

.68

.60

.58

.45

.63

.64

.62

.61 

.71

19.56

0.631

0.976

60

Aug.

0.3S

.69

.83

.68

.48

.21

754

.42

.44

.56

.82 

.80

.58

.78

.82

.77

.83 

.88

.79

.77

1.01

1.04 ia3

.71

.67

.70

.76

.76

.68

. 59

.51

21.63

0.698

1.08

66

Sept.

0.73

.74

.66

.76

.79

.57

.64

.64

.57

.58

.53 

.63

1.12

.90

.98

.88

.95

 52

.60

1.22

.78

.86

1.06

.80

.93

1.00

.96

1.00

.84

.78

24.02

0.801

1.24

74

Oct.

1.10

1.06

1.01

1.27

1.11

1.06

1.08

1.02

1.07

1.09

.96 

1.00

.96

1.01

.98

1.04

1.08 

1.00

1.08

1.06

.93

17T3

1.13

1.04

1.11

1.06

1.02

1.11

1.08

1.05 

.99

32.69

1.05

1.62

100

Calendar year 1955. Max 1.93 Min

Nov. .

1.03

1.06

1.08

.99

1.01

.97

.86

.86

1.07

1.32

1.30 

1.35

1.14

1.16

1.31

1.17

1.23 

1.19

1.21

1.21

1.22

.84

.75

1708

1.23

1.08

1.13

1.41

1.72

T744

34.42

1.15

1.78

106

0.21

Dec.

1.35

1.24

1.18

1.16

1.13

1.06

1.07

1.05

1.02

1.02

1.19 

.97

.84

79T

.95

.98

.99 

1.07

1.02

1.95

1.63

1.19

1.11

1.16

1.35

1.56

1.45

1.47

1.55

1.45 

1.38

37.19

1.20

1.86

114

Jan.

1.51

1.44

.96

.79

1755"

1.44

1.29

1.54

1.42

1.51

1.40 

2.1

T7T9

1.60

1.24

1.79

1.37 

1.01

.85

1.41

1.40

1.61

1.66

1.68

1.84

1.85

1.81

1.58

1.38

1.55 

1.38

45.50

1.47

2.27

140

Feb.

1.20

TTTB"

1.42

1.51

1.53

1.66

1.61

1.46

1.56

1.47

1.28 

1.29

1.44

1.33

1.37

1.30

1.50 

1.23

1.36

1.59

1.47

1.37

1.69

T74T

1.6

1.6

1.5

1.5

1.5

41.67

1.44

2.23

128

Mar.

1.5

T75

1.5

1.4

1.4

1.4

1.3

1.2

1.2

1.2

1.3 

1.4

1.5

1.5

1.2

1.1

.99

1755

1.51

1.27

1.05

1.11

1.54

1.19

1.28

1.11

1.17

1.14

1.40

1.56 

1.45

40.12

1.29

2.00

125

Apr.

1.50

1.57

1.27

1.40

1.14

1.54

1.25

1.29

1.20

1.25

T728

1.27

1.23

1.56

1.46

1.61 

T738

1.34

1.34

1.24

1.25

1.36

1.40

1.28

1.37

1.40

1.14

1.41

1.39

59.61

1.52

2.04

122

May

1.49

1.41

1.42

1.59

1.32

1.44

1.41

1.48

1.51

1.49

1.60 

T746

1.42

1.40

1.46

1.46

1.01 

.94

1.08

1.10

.88

1735

1.22

1.22

1.24

1.18

1.24

1.16

1.19

1.15 

1.21

39.98

1.29

2.00

123

June

1.22

1.18

1.27

1.22

1.22

1.26

1.47

1.60

T750

1.44

1.28 

1.29

1.33

1.24

1.34

1.58

1.57 

1.55

1.55

1.54

1.54

1.59

1.27

1.59

1.57

1.30

1.31

1.22

1.55

1.11

59.68

1.32

2.04

122

Mean(mgd) 0.924 Mean(cfs) 1.45 Ac-ft 1,050

Fiscal year 1955-56: Max 2.1 Min 0.21 Mean(mgd) 1.14 Mean(cfs) 1.76 Ac-ft 1,280

Note. Doubtful or no gage-height record July 1-14, Feb. 25 to Mar. 16; discharge estimated on 

basis of probable increase or decrease in flow.
ISLAND OF OAHU 43

Waiawa Stream near Pearl City

Location. Lat 21 °23 ' 55", long 157°58'55", on left bank 100 ft upstream from bridge on 

Farrington Highway, 0.6 mile northwest of Pearl City, and 2.0 miles northeast of 

W3

Drainage area. 25.4 sq mi.

Records available. --June 1952 to June 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 1.81 ft above mean sea

J.6V61 , Q3tutn Oi 1929 .

Extremes Maximum discharge during year, 8,700 mgd (13,500 cfs) Feb. 25 (gage height 

17.1 ft, from floodmark), from rating curve extended above 700 mgd on basis of slopearea determination of peak flow; minimum, 2.85 mgd (4.41 cfs) Oct 10 

10 o^S?M 6 % Maxlmilm discharge, 10,900 mgd (16,900 cfs) Nov. 28, 1954 (gage height, 

19.^7 It), from rating curve extended above 700 mgd on basis of slope-area determination 

at gage height 17.1 ft; minimum, 1.86 mgd (2.88 cfs) Dec. 4, 1953.

Remarks Records good except those for periods of no gage-height record, which a 

Small quantity of water diverted occasionally for irrigation.

Rating table, fiscal year 1955-56 (gage height, In feet, and discharge, 

in million gallons a day)

re poor.

1.6 

1.8 

2.0 

2.2 

2.5 

3.0 8.0

155

280

490

700

940

1,270

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

3.35

i 575~

3.5

3.5

3.35

8.6

4.7

3.7

3.5

3.6

3.35

4.1

3.6

3.6

3.5

3.5

3.6

3.5

3.5

3.5

6.5

4.7

3.7-

3.7

3.7

3.85

4.3

20

15.1

9.4

5.5

157.50

5.08

7.86

483

Aug.

6.9

18.2

45

9.7

5.7

4.3

3.85

3.6

3.5

3.5

3.5

4.2

3.85

44

11.8

6.2

4.9

7.4

105

215

17.2

8.8

6.0

5.4

5.7

4.8

4.2

3.85

3.6

3.5

5.2

576.35

18.6

28.8

1,770

Sept.

3.2

374

5.5

7.0

678

4.8

4.0

3.85

3.7

3.6

3.5

3.5

3.5

3.35

3.35

3.35

3.5

3.5

3.6

3.5

3.6

3.6

3.7

3.6

3.6

3.6

3.6

3.6

3.5

3.5

116.40

3.88

6.00

357

Oct.

3.35

3.35

3.2

3.2

3.2

3.1

3.1

3.2

3.2

5.0

3.1

3.1

3.1

3.2

3.35

3.5

3.2

3.2

3.5

3.5

4.0

3785

3.6

3.6

3.7

3.5

3.35

3.35

3.35

3.2

103.35

3.33

5.15

317

Nov.

3.1

3.1

3.1

3.2

3.5

3.35

3.35

3.6

5.9

5.9

23

7.0

6.4

23

23

6.9

17.1

58

25.5

15.7

7.5

18.3

13.2

9.2

6.8

5.4

20

7.1

4.9

3. 85

339.95

11.3

17.5

1,040

Dec.

3.6

3.5

3.35

3.35

5.2

3.2

3.2

3*2

3.5

3.5

3.5

3.5

3.5

3.85

4.2

3.7

3.6

3.5

6.7

379

452

23.5

15.7

14.3

8.8

6.8

5.9

5.0

4.6

8.1

1J325.55

55.1

51.2

5,150

Jan.

11.9

9.9

6.4

5.4

4.8

4.5

4.0

5.85

5.7

577

5.85

107

129

23

11.4

30.5

26

13.0

8.8

7.1

6.0

5.4

5.0

*4.6

120

To" 130

12

17

22

18

787.60

25.4

39.5

2,420

Feb.

10

9.5

9.5

10

10

15

60

15

10

16

18

24

65

20

14

100

160

55

56

20

15

9.5

50^ 8.5

*1,000

160

90

64

56

2,107.8

72.7

112

6,470

Mar.

67

57

19.3

14.3

11.7

12.0

10.4

9.2

21.5

15.5

8.4

7.5

6.6

5.9

5.4

5.2

5.0

4.6

4.4

¥79

6.4

5.0

4.6

16.2

8.0

7.0

5.2

5.2

4.7

11

10

556.9

11.5

17.8

1,100

Apr.

8.5

6.0

5.2

5.1

4.9

4.7

5.5

6.5

5.5

5.5

5.0

4.8

5.2

5.5

6.8

5.2

7.5

5.5

4.5

5.5

22

15

7.0

*5.5

5.5

5.4

5.5

4.8

4.2

472

191.6

6.39

9.89

588

May

4.8

4.6

4.5

4.2

¥72

4.0

11.6

6.5

4.9

4.5

25.5

9.0

5.5

5.4

11.0

7.9

5.9

5.9

7.1

5.9

5.2

4.9

52

T2.3

11.5

9.2

7.9

26

20

27

26 5

522.8

10.4

16.1

991

June

19.2

15.5

37.5

31

15.1

12.0

59

21

12.0

14.7

21.5

46

5?

50

24.5

15.6

9.2

17.7

9.0

7.7

5.4

14.7

54.5

22.5

12.0

9.4

14.9

9.4

6.6

6.4

-------

571.0

19.0

29.4

1,750

Calendar year 1955 : Max 1,470 Min 3.0 Mean(mgd) 20.9 Mean(cfs) 32.3 Ac-ft 23,450

Fiscal r-LEsucu. year y^au. 1955-56: j.a*j*j-*jo : Max PKIJL 1,000 a.,uuu Min pu.ii 3.0 -j.v Mean(mgd) piearnnig,u; 18.2 j-o.t, Mean(cfs) neiui\uia> 28.2 c-o.c- Ac-ft rtu-j. i* 20,440 t-w,ttw

Peak discharge (base, 800 mgd). Aug. 20 (l a.m.) 1,540 mgd (2,380 cfs), 8.46 ft; Dec. 21 (4 a.m.) 

2,410 mgd (5,750 cfs), 9.68 ft; Feb. 25 (time unknown) 8,700 mgd (15,500 efs), 17.1 ft._______

* Discharge measurement made on this day.

Note. No gage-height record Jan. 26 to Feb. 27, Mar. 25 to Apr. 24; discharge estimated on basis 

of records for Waikele Stream.

5E7571 O -59 -4
ISLAND OF OAHU

Hawaiian Electric Co. tunnel at Waiau, near Pearl City

Location. Lat 21°23'30", long 157°57'55", on right bank of ditch at Hawaiian Electric 

Co.'s Waiau powerplant, 0.6 mile east of Pearl City and 8.8 miles northwest of 

Honolulu.

Records available. October 1939 to December 1945, July 1952 to June 1956.

Gage.--Water-stage recorder and Parshall flume. Datum of gage is 2.91 ft above mean sea 

level, datum of 1929. Prior to July 1, 1952, water-stage recorder at site 120 ft downstream at datum 2.27 ft lower.

Average discharge. 6 years (1940-41, 1944-45, 1952-56), 10.3 mgd (15.9 cfs).

Extremes. 1939-45. 1952-56: Maximum dally discharge, 17.3 mgd (26.8 cfs) Mar. 26, 27, 

1940; minimum daily, 6.0 mgd (9.3 cfs) Aug. 3, 1941.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Flow regulated by valves. Water used for cooling condensers of powerplant, and afterwards for irrigation of sugarcane.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

9.4

9.4

9.4

9.4

11.4

13.5

9.4

9.4

9.4

9.4

9.4

9.4

9.4

9.4

9.4

9.4

9.4

9.4

9.4

9.4

9.4

9.4

9.4

9.4

9.4

8.8

878

9.4

9.4 9 4

9)4

296.3

9.56

14.8

909

Aug.

9.4

9.4

9.4

9.4

8.8

8.8

9.4

8.8

9.4

8.8

8.8

8.8

8.8

9.4

8.8

*8.8

8.8

8.8

8.8

9.4

9.4

8.8

9.5

8.8

8.8

9.4

9.4

8.8

11.6 

1175

8.8

285.6

9.21

14.2

876

Sept.

11.3

11.9

TT77

10.6

11.0

11.1

11.3

11.7

11.6

9.9

10.0

11.5

11.1

11.1

10.9

10.8

8.8

974

10.9

11.1

10.8

10.9

11.5

11.0

9.8

11.6

11.5

11.2

11.2

11.1

328.3

10.9

16.9

1,010

Oct.

10.6

10.5

10.9

10.5

11.1

 11.1

11.2

10.3

9.5

11.1

10.5

11.2

10.9

11.1

9.5

9.2

11.3

11.5

11.1

11.5

10.9

9.8

9.8

11.8

TT7B11.6

11.1

11.1

9.4

8.8 

1173

331.7

10.7

16.6

1,020

Calendar year 1955. Max 13.5 Min

Nov.

11.3

10.8

10.6

8.8

878

8.8

8.8

8.8

8.8

9.4

9.4

9.4

9.4

9.4

10.4

10.6

11.1

11.2

9.9

10.3

11.5

11.6

11.4

11.2

11.5

11.2

11.1

11.5

*11.6

11 . 8

310.4

10'. 3

15.9

953

Dec.

11.0

11.5

10.5

10.1

11.6

11.6

12.1

11.8

10.5

9.5

9.8

11.8

11.5

11.6

10.4

10.9

9.6

10.1

11.4

10.8

10.4

10.4

10.2

9.4

974

9.4

9.9

11.9

12.3

TT74

10.2

333.0

10.7

16.6

1,020

Jan.

9.4 107?

11.6

10.7

10.1

10.6

9.4

9.4

9.4

11.6

11.8

11.7

10.2

9.9

9.9

10.8

10.8

11.5

13.1

11.0

9.9

9.9

10.5

all.O

 all. 4

12.0

12.2

12.2

10.5

12. 8 

12.9

338.8

10.9

16.9

1,040

'Feb.

11.0

12.2

12.3

10.6

10.8

12.2

13.8

11.2

11.7

12.4

10.3

9.9

llTT?

12.2

12.4

11.0

12.6

10.6

10.4

12.6

12.2

10.4

10.5

9.9

10.6

10.3

11.7

12.6

11.7

 

332.5

11.5

17.8

1,020

Mar.

11.7

11.7

9.7

979

12.3

12.2

12.0

12.3

12.3

11.9

11.6

12.6

12.6

12.1

11.6

11.9

11.4

10.7

*12.4

11.9

11.8

11.9

11.9

10.0

9.9

11.9

12.5

12.5

12.8

10^2

360.1

11.6

17.9

1,110

Apr.

9.4

127?

11.9

12.1

11.9

12.6

12.2

10.1

12.3

11.9

11.6

11.6

11.3

11.4

9.4

11.9

12.0

11.8

11.6

*11.6

9.4

11.4

11.6

11.8

11.8

11.6

11.6

11.1

9.4

11.6

342.1

11.4

17.6

1,050

May

11.8

11.8

11.6

11.8

11.4

9/7

11.6

11.6

ntff

11.6

11.4

9.7

11.2

11.6

11.6

11.6

11.6

11.0

10.6

11.8

11.6

11.2

11.6

11.5

10.8

10.8

11.6

11.6

11.5 

 11.8

352.9

11.4

17.6

1,080

June

11.9

11.4

10.5

11.5

8.8

11.8

11.5

11.5

11.4

10.2

11.6

11.8

11.8

11.5

11.6

9.4

9.4

11.6

11.9

11.6

11.8

11.4

11.9

11.8

11.8

11.9

11.9

12.1

12il

341.5

11.4

17.6

1,050

8.8 Mean(mgd) 10.0 Mean(cfs) 15.5 Ac-ft 11,240

Fiscal year 1955-56: Max 13.8 Min 8.8 Mean (mgd) 10.8 Mean(cfs) 16.7 Ac-ft 12,140

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage and probable 

Increase in flow.
ISLAND OF OAHU 45

Waimalu Stream near Aiea

Location. Lat 21°23'35", long 157°57'05", on right bank of stream, just downstream from 

bridge on Moanalua Highway, 1.5 miles northwest of Aiea and 1.6 miles east of Pearl 

City.

Drainage area. 6.1 sq mi.

Records available. January 1952 to June 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 5 ft (from topographic map).

Extremes.--Maximum discharge during year, 1,300 mgd (2,010 cfs) Feb. 25 (gage height, 

5.99 ft) , from rating curve extended above 14 mgd on basis of test on model of station 

site and contracted-opening determination of peak flow; minimum, 0.31 mgd (0.48 cfs) 

Oct. 2, 3.

1952-56: Maximum discharge, 1,900 mgd (2,940 cfs) Nov. 28, 1954 (gage height, 

8.03 ft), from rating curve extended above 600 mgd by test on model of station site; 

minimum, 0.01 mgd (0.02 cfs) Jan. 18, 1952.

Remarks. Records fair except those for periods of no gage-height record or indefinite 

stage-discharge relation, which are poor. Small quantities of water diverted for irrigation.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

0.41

.80

.66

.49

.44

.38

.32

735

.61

.71

1.36

1.15

.76

.82

.87

.82

.60

.55

.55

.71

.76

1.06

1.06

.98

1.53

1.74

1.30

19.0

~3775 

g 15

l!o2

47.71

1.54

2.38

146

Aug.

0.73

29

17.6

1.58

.87

.66

.82

1.14

1.06

1.69

1.46

1.06

1.97

27

3.3

1.98

1.54

23

34

52

2.65

1.20

.76

.87

.71

.55

.49

.49

.46

.41 

757

212.02

6.84

10.6

651

Sept.

1.14

el. 8

el. 5

e3.5

elTS

e.9

.62

1.15

1.01

.62

.62

.62

.55

.86

.86

.86

.95

.69

.77

.77

1.05

1.05

.77

.69

.55

.48

748

.91

1.04 

95

29.36

0.979

1.51

90

Oct.

0.62

.31

73T

*.48

.41

.55

.69

.75

.77

.95

1.15

1.61

1.27

1.27

.95

1.05

.86

,77

1.27

1.40

1.27

1.27

1.53

1.53

1.6V

1.40

1.27

1.27

1.27

1.27 

1.27

32.46

1.05

1.62

100

Nov.

1.67

1.81

1.53

1.67

1.67

1.67

2.1

.62

.69

.82

.86

.62

.55 .55'

.48

.41

748

2.0

1.00

.48

.55

2.7

T7S3

1.05

2.25

2.2

2.25

*.69

.77

1.76

37.43

1.25

1.93

115

Dec.

0.95

1.05

.86

.77

.62

.55

.62

.69

.55

.62

.69

.61

.69

.62

1.22

.48

.41

765

45

198

220

14.8

6.6

4.2

3.15

2.1

1.81

1.53

1.05

1.05 

2.75

514.66

16.6

25.7

1,580

Jan.

3.2

3.7

1.67

1.53

1.53

1.91

1.67

1.40

1.15

1.05

.95

77

12.3

4.0

2.25

3.6

2.1

1.67

1.27

1.15

1.15

.95

.95

.86

62

36.5

4.2

3.45

13.2

16 . 2 

9.4

273.96

8.84

13.7

841

Feb.

3.35

5.5

3.95

1.81

TT5T

12.1

64

6.4

2.95

6.0

4.6

47

25.5

10.9

5.2

47

43

29

12.4

5.7

4.0 .

2.95

2.6

51

*591

36

21

11.3

13.9

.......

871.92

30.1

46.6

2,680

Mar.

16.6

6.1

2.6

1.95

2.6

2.1

1.53

2.15

2.1

1.81

1.53

1.53

1.53

1.15

1.15

1.05

.86

.86

.77

.77

.77

.69

1761

3.3

2.25

2.55

5.7

3.3

8.2

15.6 

20

114.71

3.70

5.72

352

Apr.

13.1

3.8

2.1

1.15

.86

.69

.69

.69

.77

1.05

1.67

1.53

1.15

1.40

1.15

1.05

.95

*.77

.77

39_

31.5

2.05

.95

.77

.62

.55

762

.62

.62

. 62

113.26

3.78

5.85

348

May

0.55 -T5B-

.77

1.05

1.15

1.15

~2.8 50

.95

.77

1.15

.77

.69

.77

2.35

1.05

1.15

.77

1.30

.62

.55

.69

a!5

a3.5

a5.0

al.5

a. 86

a7.6

alO.O

a7.0 

a4.0

126.06

4.07

6.30

387

June

a2.3

al.5

a9.4

a8.0

2.95

3.05

8.3

2.8

1.57

1.27

2.8

8.1

8.4

6.4

4.4

2.6

1.81

2.2

1.15

ill

1.45

4.1

5.6

4.2

2.95

1.95

1.15

.95

.86

. 86

103.84

3.46

5.35

319

Calendar year 1955. Max 332 Min 0.31 Mean(mgd) 5.94 Mean(ofs) 9.19 Ac-ft 6,660

Fiscal year 1955-56 1955-56; : Max Max 391 391 Min Min 0.31 0.31 Mean(mgd) Mean(mgd) 6.77 6.77 Mean(ofs) Mean(ofs) 10.5 10.5 Ac-ft Ac-ft 7,610 7,610

irge (base, 250 mgd). Aug. 2 (9:30 p.m.) 306 mgd (473 cfs), 3.59 ft; Aug. 14 (10:30 a.m.) 

427 cfs), 3.38 ft; Aug. 19 (12 p.m.) 493 mgd (763 cfs), 4.74 ft; Dec. 21 (1 a.m.) 

1,450 cfs), 5.05 ft; Feb. 25 (8:30 a.m.) 1,300 mgd (2,010 cfs) 5.99 ft; May 7 (8:30 a.m.) 

851 cfs), 3.36 ft.

Peak discha: 

276 mgd

550 mgd (851 efs), 5.56 ft

Discharge measurement made on this day.

No gage-height record; discharge estimated on basis of records for nearby streams. 

Stage-discharge relation Indefinite; discharge estimated on basis of recorded graph and 

for nearby streams. streams

records
46 ISLAND OP OAHU

Pearl Harbor Springs at Kalauao, near Aiea

Location. Lat 21°23'05", long 157°56'45", on left bank 900 ft downstream from Oahu Sugar 

Co.'s pump 6, 1.1 miles west of Aiea, and 7.6 miles northwest of Honolulu.

Records available. March 1931 to June 1956.

Gage. Water-stage recorder and sharp-crested weir. Datum of gage is 1.38 ft below mean 

sea level, datum of 1929.

Average discharge.--25 years, 16.0 mgd (24.8 cfs), unadjusted for pumpage.

Extremes.--1931-56: Maximum daily discharge, 25 mgd (39 cfs) Feb. 17-26, 1938, Feb. 23, 24, 

1955; minimum daily, 7.2 mgd (11.1 cfs) Aug. 25, Sept. 2, 1947.

Remarks. Records good. When water is needed for irrigation of sugarcane, Oahu Sugar Go's 

pump 6 diverts about 7 mgd as a high-lift pump or 9 mgd as a low-lift pump. Surface 

runoff from floods not included in figures of discharge given below.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cfs

Ac-ft

July

14.2 

16.7

21.5

1875

15.4

13.8

14.6

15.4

16.7

18.5

13.3

15.4

14.6

13.8

16.7

21

18.5

14.2

13.8

18.5

16.7

21

21

19.0

13.3

13.3

12.9

12.9

12.9

16.7

504.6

16.3

25.2

1,550

Aug.

13.3 

13.3

16.3

15.4

21

21

18.0

13.3

13.8

13.3

15.0

18.5

16.3

18.5

13.3

12.5

13.3

15.0

19.8

18.0

18.0

12.9

12.5

12.5

13.3

15.0

17.2

18.5

12.5

13.3 

12 5

477.1

15.4

23.8

1,460

Sept.

®*

16.3 go! s

19.8

12.5

12.5

12.5

15.0

19.8

18.0

16.3

17.2

13.3

12.5

15.0

19.8

17.2

13.3

12.5

12.5

13.3

19.4

20.5

20.5

15.4

13.3

12.5

13.3

14.6

466.0

15.5

24.0

1,430

Calendar year 1955: Max 25

Oct.

19.4 

18.5

14.6

13.3

*14.2

19.4

19.4

19.8

1974

13.3

15.0

12.5

14.2

17.6

19.8

19.8

19.4

19.8

12.9

15.4

19.4

19.4

19.4

15.9

12.1

12.5

12.5

17.6

19.4

15 9 

14! 6

516.4

16.7

25.8

1,580

Min

Nov.

18.0 

13.3

12.1

13.8

19.4

17.2

12.9

12.9

16.7

19.8

19.8

19.8

19.8

19.8

19.8

19.8

19.8

19.8

19.8

19.8

19.8

19.8

19.8

19.8

20.5

20.5

20.5

15.9

19.8

*16.3

546.8

18.2

28.2

1,680

Dec.

19.0 

20.5

20.5

20.5

17.6

20.5

17.2

19.8

19.8

20.5

20.5

17.6

17.2

17.2

17.2

17.6

20.5

19.4

16.7

2175

21.5

21

21

21

21

21

21

21

21

21 5

613.8

19.8

30.6

1,880

Jan.

21.5 

21.5

21.5

20.5

21.5

21

21.5

21.5

17.6

16.3

21.5

22

22

22

22

22

22

22

22

22

22

22

22

22

22.5

22.5

22.5

22

22.5 22 5

*

668.9

21.6

33.4

2,050

' Feb.

22.5 

22

22

22

22.5

22.5

22.5

22.5

22.5

22.5

22.5

23

23

22.5

22.5

22.5

22.5

23

22.5

22.5

22.5

22.5

22.5

22.5

22.5

23

22.5

22.5

22.5

653.0

22.5

34.8

2,000

Mar.

22.5 

'2275

22.5

22.5

22

22

17.6

15.9

20.5

22

21.5

20.5

21.5

21

21

19.4

21

21

21

17.2

15.9

21

18.0

21

21

17.2

17.6

19.0

21 

21

21.5

629.3

20.3

31.4

1,930

Apr.

21 

2\

21

21

20.5

17.2

21

21

21

21

17.6

17.6

17.2

21

21

21

20.5

15.4

T776

19.8

20.5

20.5

20.5

16.7

19.8

19.4

15.4

19.8

19.8

16 . 3

583.1

19.4

30.0

1,790

May

m19.8

19.8

19.8

19.8

16.3

16.7

16.3

16.3

14.6

19.8

19.8

14.6

18.0

17.2

19.0

16.3

14.6

19.0

12.9

14.2

15.4

13.3

14.6

16.7

19.4

12.9

19.4 

15. 9

528.3

17.0

26.3

1,620

June

15.4 

16.3

19.4

TsTo

13.3

13.3

14.6

16.3

16.7

19.0

14.6

16.3

16.3

16.3

15.4

15.0

18.5

13.8

12.9

12.5

12.5

14.6

19.4

19.4

19.4

19.4

12.9

12.5

12.1

'

472.1

15.7

24.3

1,450

12.1 Mean(mgd) 17.8 Mean(cfs) 27.5 Ac -ft 19,940

Fiscal year 1955-56: Max 23 Min 12.1 Mean(mgd) 18.2 Mean(cfs) 28.2 Ac-ft 20,420

Discharge measurement made on this day.
ISLAND OF OAHU 47

Kalauao Stream at Aiea

Location.--Lat 21°23'05", long 157°56'30", on left bank 600 ft upstream from Kamehameha 

Highway Bridge, 0.7 mile west of Aiea Sugar Mill, and 2.3 miles east of Pearl City.

Drainage area. 2.92 sq mi.

Records available. July 1953 to June 1956.

Gage. Water-stage recorder and concrete control. Datura of gage is 4.00 ft above mean sea 

level, datum of 1929.

Extremes.--Maximum discharge during year, 590 mgd (913 cfs) Feb. 25 (gage height, 5.97 ft); 

minimum, 0.64 mgd (0.99 cfs) Oct. 26-28.

1953-56: Maximum discharge, 1,050 mgd (1,620 cfs) Nov. 28, 1954 (gage height, 

7.29 ft), from rating curve extended above 240 mgd; minimum, 0.43 mgd (0.66 cfs) 

Sept. 22, Oct. 23, 29, 1954.

Remarks.--Records fair except those for periods of no gage-height record, which are poor.

Rating table, fiscal year 1955-56 (gage height, in feet, and 

discharge, in million gallons a day)

1.3

1.4

1.5

1.6

1.7

1.8

1.9

0.37

.78

1.43

3.35

3.5

5.3

7.8

3.1

3.4 

2.8 

3.H 

3.6 

4.0

14.6

39.5

52

85

135

176

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

1.21

1.43

1.07 

1.01

1.35

1.35

1.21

1.07

1.21

.95

1.01

.83

.89

1.35

1.34

.78

795

1.62

1.21

1.31

1.14

.95

.89

.83

1.36

3.7

1.35

10.0

"3775

1.95

1.07

48.03

1.55

2.40

147

Aug.

0.95

6.5

7.0 

1.76

.95

1.07

1.31

.95

.89

.83

1.07

1.01

.89

5.0

*1.71

1.14

1.07

8.6

13.0

8.6

1.75

1.42

1.14

1.01

.95

1.01

.78

.83

1.35

1.07

1.07

76.58

3.47

3.82

235

Sept.

1.07

1.55

1.38 

2.65

1.66

1.35

1.35

1.56

1.4,6

1.76

1.42

1.14

1.07

1.01

1.01

.95

.78

789

1.62

1.63

1.01

1.07

.78

.78

.78

.89

.89

1.06

1.09

1.01

36.56

1.22

1.89

113

Oct.

0.78

.78

1.28

T7l4

.78

.89

.78

.78

.78

.83

.89

.89

.89

.73

.68

.73

.73

.73

.73

.78

.68

.68

.73

.78

.64

.64

.68

.68

 68

1.13

35.40

0.819

1.27

78

Nov.

0.73

.73

.73 

.68

768

.68

.78

.83

3.85

2.0

3.2

1.14

.95

1.31

2.15

1.01

1.01

3.85

2.55

1.84

1.14

3.3

1.66

1.07

1.38

.95

3.45

1.43

1.01

* . 95

44.83

1.49

2.31

138

Dec.

0.89

.89

tS1.01

.95

.95

.95

.83

.83

.83

1.01

1.13

.89

.83

.89

.83

.83

9.3

76

*81

11.7

3.3

3.0

1.84

1.35

1.21

1.07

1.01

1.55

310.28

6.78

10.5

645

Jan.

1.74

3,25

1.21 

1.35

1,07

1.40

1.01

TToT

1.35

1.35

1.35

26

10.7

3.0

3.0

6.9

2.8

1.75

*1.42

1.35

1.50

1.43

1.35

1.42

14.9

18.9

7.7

4.3

12.9

21

13.1

168.56

5.44

8.42

517

Feb.

3.95

5.7

5.6 

3.35

2.45

9.3

33.5

6.0

3.0

8.7

6.9

31.5

20.5

11.6

7.3

20.5

18.7

34.5

13.3

6.0

2.75

3.3

2.0

3475

157

31

23

13.0

10.3

475.10

16.4

25.4

1,460

Mar.

14.9

6.7

2.75 

3.65

2.9

1.93

1.66

*3.05

2.1

1.66

1.93

2.0

1.93

1.93

1.58

1.42

1.35

1.35

1.38

1.21

1.07

1.07

1.07

3.8

3.35

3.35

1.8

1.84

1.42

a3.4

78.65

2.54

3.93

341

Apr.

a6.0

a3.4

1.66 

1.35

1.21

1.4

1.8

1.35

1.28

1.50

1.58

1.58

1.66

1.4

2.35

a2.6

a3.5

a4.4

a4.6

a7.7

al2

a7.8

a3.2

*2.0

1.07

1.07

1.14

1.07

1.01

T76T

83.75

3.76

4.27

354

May

1.07

1.14

1.07 

.95

1.01

1.01

10.3

2.6

2.3

1.33

1.40

1.07

.95

.95

3.1

1.77

1.21

1.07

1.77

1.31

1.01

1.14

9.3

3.15

4.2

1.93

1.49

6.8

8.8

5.7

3.1

83.90

2.71

4.19

357

June

3.45

1.93

8.5 

6.7

2.55

*3.55

6.9

4.5

3.4

3.75

6.3

9.0

8.6

6.0

3.7

2.75

2.0

3.45

1.71

1.42

1.64

3.7

3.55

3.1

3.55

1.43

1.42

1.14

1.07

1.01

107.76

3.59

5.55

331

Calendar year 1955: Max 144 Min 0.64 Mean(mgd) 5.41 Mean(cfs) 5.38 Ac-ft 3,830

Fiscal year 1955-56: Max 137 Min 0.64 Mean(mgd) 3.93 Mean(cfs) 6.08 Ac-ft 4,420

Peak discharge (base, 150 mgd). Dec. 20 (12 p.m.) 490 mgd (758 cfs), 5.64 ft; Feb. 7 (4 a.m.) 

305 mgd (317 cfs), 4.21 ft; Feb. 13 (9 p.m.) 156 mgd (341 cfs), 3.85 ft; Feb. 25 (8:30 a.m.)

590 mgd (913 cfs), 5.97 ft.

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for nearby streams.
48 ISLAND OF OAHU

North Halawa Stream near Aiea

Location. Lat 21°23'45", long 157°53'45", on left bank 2.7 miles above confluence with 

South Halawa Stream and 2.7 miles northeast of Aiea Post Office.

Drainage area. 3.45 sq mi.

Records available. August 1929 to June 1933, July 1953 to June 1956. 

Gage. Water-stage recorder. Altitude of gage is 30 ft (by barometer). 

Average discharge.--5 years (1931-33, 1953-56), 5.82 mgd (9.00 cfs).

Extremes. 1953-54: Maximum discharge during fiscal year, 428 mgd (662 cfs) Apr. 29 (gage 

height, 9.72 ft), from rating curve extended above 70 mgd; no flow at times.

1954-55: Maximum discharge during fiscal year, 1,100 mgd (1,700 cfs) Nov. 28 (gage 

height, 12.64 ft, from floodmarks), from rating curve extended above 70 mgd; no flow at 

times.

1955-56: Maximum discharge during fiscal year, 660 mgd (1,020 cfs) Feb. 25 (gage 

height, 10.88 ft), from rating curve extended above 70 mgd; no flow at times.

1929-33, 1953-56: Maximum discharge, 4,300 mgd (6,650 cfs) Feb. 28, 1932 (gage 

height, 13.36 ft); no flow several times each year.

Remarks. Records poor except those for 1955-56, which are fair.

Discharge, in million gallons a day, fiscal year July 1953 to June 1954

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

Mean:

mgd

Cf£

Ac-ft

July

0

0

0

0

Aug.

0

0

0

0

0

0

16.6

2.85

.26

.15

.05

.02

5.9

1.88

.04

.02

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

27.77

0.896

1.39

85

Sept.

0

0

0

0

Oct.

0

0

0

0

Nov.

0

0

0

0

Dec.

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

1.01

2.15

20.5

3.55

.55

.16

.08

.56

*.18

.09 

.03

.01

28.87

0.931

1.44

89

Jan.

41

6.5

1.44

.61

.46

.39

.26

.15

.09

.03

.01

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

50.94

1.64

2.54

156

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.48

.20

8,0

6.9

5.6

3.0

1.92

26.10

0.932

1.44

80

Mar.

5.1

11.7

*2.5

*1.04

6.3

2.4

1.03

.78

.92

14.0

6.2

2.25

1.15

.75

.61

.48

.67

1.23

.83

.58

.44

.28

.13

.04

.03

.02

0

.01

0 

0

0

61.47

1.98

3.06

189

Apr.

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

537 9

60.9

2.03

3.14

187

May

1.13

.54

.37

.28

.16

*.18

.15

.21

.18

.12

.06

.04

.02

.01

0

0

0

0

2.5

4.4

1.86

.60

.37

6.5

1.01

.56

1.34

1.76

.83

11.1

50

86.28

2.78

4.30

265

June

10.1

2.4

2.75

.99

.72

.48

1.43

2.85

1.19

.78

.54

.41

.28

.18

.12

.06

^

.04

.04

.43

.71

.41

.32

.42

1.65

.62

.70

.76

*.80

1.39

33.61

1.12

1.73

103

Calendar year 1953: Max - Min - Mean(mgd) - Mean(cfs) - Ac-ft -

Fiscal year 1953-54: Max 53 Min 0 Mean(mgd) 1.03 Mean(cfs) 1.59 Ac-ft 1,150

Peak discharge (base, 300 mgd). Jan. 1 (5:30 a.m.) 320 mgd (495 cfs), 9.04 ftj Apr. 29 (l p.m.) 

428 mgd (662 cfs), 9.72 ft; May 51 (2:50 a.m.) 580 mgd (588 cfs), 9.59 ft.________________ 

* Discharge measurement made on this day.
ISLAND OP OAHU 

North Halawa Stream near Aiea Continued

49

Discharge, in million gallons a day, fiscal year July 1954 to June 1955

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

50

51

Total

Mean:

mgc

cfs

Ac-ft

July

3.05

3.4

6.4

41

11.2

5.2

1.17

.80

.58

25.5

29

20.5

9.8

5.4

1.72

2.15

7.6

21

5.7

4.4

1.64

1.55

1.55

1.11

.85

.61

107 

.46

115

5.6

460.52

14.9

23.1

1,410

Aug.

2.55

1.52

.99

1742

7.0

2.7

1.72

4.6

4.0

5.0

5.65

11.1

1.80

1.03

2.25

3.55

2.2

5.15

1.77

1.27

9.1

5.95

18.6

*7 . 9

1.94

5.4

9.8

5.6

2.05

1.11

1.19

127.71

4.12

6.57

592

Sept.

0.64

.48

.41

.34

.28

.42

.48

.37

.56

.37

.15

.05

.04

.02

762

1.35

.54

5.3

1.58

.72

1.24

.70

.28

.54

12.2

1.44

.74

.44

.36

.50

52.56

1.09

1.69

100

Calendar year 1954: Max 240

Oct.

0.19

.77

.58

.19

.16

.05

.04

.11

.67

,55

25

7.1

2.05

1.07

.78

.48

.50

.19

*.16

.09

.56

.66

.25

.11

.04

.04

.02

.02

0

5.9

80.56

2.59

4.01

247

Min

Nov.

0.48

.08

.04

.02

.02

£

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

aO

aO

aO

a!80

a240

alO

450.64

14.4

22.3

1,320

Dec.

a5

*a4

5.05

1.88

17.2

76

65

25

10.1

6.5

5.5

2.5

2.95

52.5

15.1

63

10.6

3.9

2.3

1.65

5.9

55

15.9

4.6

2.45

1.70

1.70

2.45

8.6

9.0

7.0

459.81

14.2

22.0

1,350

Jan.

3.4

2.4

1.98

2.45

1.84

1.27

1.07

.83

.69

.56

.44

.32

.54

.32

.34

.41

.59

.59

.48

.52

84

12.5

4.2

2.1

1.19

*.60

.39

.26

.18

.17

 OO

126.68

4.09

6.35

589

Feb.

0.46

.gl

.69

.56

.59

1.55

79

28.5

6.2

2.7

1.75

48

15.1

7.5

4.9

5.9

8.2

6.8

19.4

14.8

7.1

37.5

159

81

40

14.2

7.7

5.0

_

584.51

20.9

52.5

1,790

Mar.

5.1

2.3

1.86

*2.65

11.9

5.2

2.1

1.62

1.24

3.65

2.8

3.25

5.25

2.4

50

22

4.6

2.5

1.70

1.50

1.07

33.5

]?5

5.8

2.7

1.70

1.18

.89

.72

.60

181.10

5.84

9.04

556

Apr.

0.49

.85

3.4

1.70

1.07

.64

.45

.29

.18

.12

.09

.07

.05

.04

.03

'.02

.02

.10

.10

.09

.08

.05

.04

.01

0

.11

3.7

1.69

.72

.57

16.57

0.552

0.854

51

May

0.18

.11

.08

.04

.02

0

0

0

0

0

0

0

0

0

0

0

0

.26

.05

1.17

.54

.11

.08

.02

.64

1.57

5.5

475

1.46

52

 *

16.87

0.544

0.842

52

June

0.15

.07

.04

o

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

0.24

0.008

0.012

0.7

0 Mean(mgd) 5.18 Mean(cfs) 8.01 Ac-ft 5,800

Fiscal year 1954-55: Max 240 Min 0 Mean(mgd) 6.84 Mean(cfs) 10.6 Ac-ft 7,660

(base, 300 mgd). July 29 (11 a.m.) 355 mgd (518 cfs), 9.14 ft; Nov. 28 (about 6 

,700 cfs), 12.64 ft; Jan. 21 (9:50 a.m.) 560 mgd (866 cfs), 10.56 ft: Feb. 7 (12 m 

cfs), 918 ftj Feb. 12 (5:50 a.m.) 505 mgd (472 cfs), 8.94 ft; Feb. 25 (5:50 p.m.) 

efs 10.08 ft

Peak discharge 

1,100 mgd U, - 

550 mgd (542 cfs), .__ .. _ 

500 mgd (774 efs), 10.08 ft.

28 (about 6 p.m.) 

. )

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations near Aiea.
50 ISLAND OF OAHU

North Halawa Stream near Alea Continued 

Discharge, In million gallons a day, fiscal #ear July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

0

.16

.07

.03

0

.02

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.67

22.5

6.0

i!oo

32.07

1.03

1.59

98

Aug. 

0

10.0

11.1

2.4

1.01

.33

.18

.14

.06

.05

.40

.33

.14

10.9

1.54

.66

.60

19.0

31.5

15.6

3.15

1.42

.84

.49

.27

.18

.14

.10

.07 

.04

.02

112.66

3.63

5.62

346

Sept.

0.48

3.6

1.19

4.6

1.11

.37

.22

.64

.49

.13

.09

.04

.01

0

0

0

0

0

0

0

.08

1.06

.39

.05

.02

0

0

0

0 

0

14.57

0.486

0.752

45

Oct.

0

0

0

0

Nov.

0

0

0

0

0

0

0

0

7.0

.47

2.85

.84

.21

1.98

2.1

.50

1.97

12.5

7.7

3.55

1.38

3.85

1.96

2.15

.95

.41

3.25

.48

.18

. 11

56.39

1.88

2.91

173

Dec.

0.07

.03

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

37.5

109

95

12.4

4.5

2.6

2.05

1.18

.72

.49

.33

.39

272.36

8.79

13.6

836

Jan.

2.05

1.57

.56

.33

.25

.14

.09

.04

.02

0

0

"978 30.5

3.1

1.54

4.1

1.78

1.07

.64 *.41

.27

.14

.10

.07

29.5

19.1

4.5

6.9

9.6

26. 5

10.3

164.97

5,32

8.23

506

Feb.

3.8

7.3

4.4

2.0

2.15

10.9

46

7.3

3.3

8.5

5.6

24

17.2

10.8

6.6

39.5

24.5

26.5

11.9

5.4

3.4

2.4

2.3

59

167

25

17.7

10.6

11.4

566.45

19.5

30.2

1,740

Mar.

17.4

6.7

3.25

2.3

1.78

1.46

1.18

1.07

2.0

1.30

1.51

.78

.52

.41

.37

.29

.25

.22

.49

1.05

.52

.27

3.65

2.05

2.3

1.59

5.4

2.25

13.6

11.4

20.5

107.86

3.48

5.38

331

Apr.

12.2

3.4

1.70

1.07

.72

4.7

1.16

.49

.29

.20

.14

.11

.08

.06

.04

.03

.44

.16

.10

33

22.5

3.65

1.42

.64 *.37

3.4

.45

.22

.13

1.33

94.20

3.14

4.86

289

May

0.71

.13

.09

.04

.02

0

112.55

.78

.33

2.0

.78

.37

.24

2.15

.64

.27

.34

2.75

.34

.14

3.4

12.0

3.35

4.6

2.1

11.3

10.8

9.5

6.3

4.3

119.32

3.85

5.96

366

June

2.35

1.94

15.8

8.3 sis

3.25

9.3

3.2

1.78

1.38

5.8

14.0

13.7

9.7

6.0

3.8

2.1

*3.45

3.0

1.24

2.9

5.5

4.1

2.75

1.24

.78

1.07

.60

 51

1.26

133.90

4.46

6.90

411

Calendar year 1955 : Max 139 Mln 0 Mean(mgd) 3.87 Meanfcfs) 5.99 Ac-ft 4,340

Fiscal year 1955-56: Max 167 Mln 0 Mean(mgd) 4.58 Mean(cfs) 7.09 Ac-ft 5,140

Peak discharge (base.

660 mgd (1,020 cfs), 10.88 ftj May

300 mgd). Dec. 19 (12 p.m.) 444 mgd (687 ofs) 

(5:50 a.m.) 520 mgd (495 cfs)

9.78 ft; Feb. 25 (6:30 a.m.) 

9.01 ft.

Discharge measurement made on this day.
ISLAND OF OAHU 51

Halawa Stream near Aiea

Location.--Lat 21°22'25", long 157°55'45", on right bank 0.7 mile southeast of Alea Post 

Office and 6.2 miles northeast of Honolulu Post Office.

Drainage area. 8.54 sq ml.

Records available.--April 1953 to June 1956.

Gage. Water-stage recorder and concrete control, 

sea level.

Datum of gage Is 16.52 ft above mean

Extremes.--Maximum discharge during year, 1,130 mgd (1,750 cfs) Feb. 25 (gage height, 

7.78 ft); minimum, 1.28 mgd (1.98 cfs) Jan. 9.

1953-56: Maximum discharge, 1,880 mgd, revised (2,910 cfs) Nov. 28, 1954 (gage 

height, 9.67 ft); no flow at times.

Revisions.--The maximum discharge for the fiscal year 1955 has been revised to 

1,880 mgd (2,910 cfs) Nov. 28, 1954 (gage height, 9.67 ft), superseding figure published In WSP 1399.

Remarks.--Records good except those for period of no gage-height record, which are poor. 

At times the Oahu Sugar Co. Installs flashboards on the control diverting the entire 

flow for Irrigation.

Rating table, fiscal year 1955-56 (gage height, in feet and

discharge, in million gallons a day)

(Shifting-control method used July 23, 24, Aug. 23-27, 

Nov. 27-30)

1.3

1.4 

1.6 

1.9 

2.2 

2.5

0.83

1.95

5.8

13.1

23

39.5

3.0 

3.5 

4.0 

4.5 

5.0 

5.5

147

222

298

388

488

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

2.3

1.95

1.84

1.61

1.73

1.95

2.5

3.0

2.8

2.3

1.95

2.5

2.65

3.2

3.9

3.35

2.5

1.95

2.1

2.1

2.3

2.65

2.2

1.92

1.73

1.73

1.95

23

11.7

5.4

2.8

105.56

3.41

5.28

324

Aug.

1.95

9.6

18.0

4.5

2.8

2.3

1.95

2.1

2.8

2.5

2.3

*3.0

4.3

11.8

5.8

5.0

4.8

23.5

38

26

7.1

4.8

4.1

3.7

3.5

3.0

2.8

2.5

2.8

3.35

3.35

214.00

6.90

10.7

657

Sept.

3.7

4.7

4.1

5.4

3TO

2.3

2.1

2.3

3.0

2.8

1 95

1 1 95 2!e

3.35

3.9

4.8

3.7

2.65

2.8

2.8

3.7

3.75

3.2

2.5

1.95

1.95

1.95

1.95

2.65

3.2

90.90

3.03

4.69

279

Oct.

2.5

1.95

1.84

1.84

2.5

2.8

2.5

1.95

1.95

2.3

2.8

3.2

3.35

3.0

2.3

2.5

3.2

2.5

1.95

2.3

2.5

1.95

1.73

1.84

1.95

2.5

2.8

2.5

1 95

1 .84

72.52

2.34

3.62

223

Nov.

1.95

2.1

2.5

2.5

1.95

1.61

1.39

1.50

7.3

3.35

3.35

2.3

1.84

1.73

3.0

1.84

1.S5

11.5

9.7

7.4

3.9

5.8

5.2

4.1

*3.5

2.65

4.2

3.0

2i.5 d R a . b

"I

108.21

3.61

9.59

332

Dec.

3.2

3.35

3.0

2.1

1.95

1.73

1.73

1.73

2.1

1.95

1.61

1.39

1784

2.3

2.65

2.5

2.3

1.84

a45

a210

a!90

31

13.1

7.9

5.8

4.1

3.0

2.65

2.1

1 95

5 9

561.77

18.1

28.0

1,720

Jan.

5.0

4.5

2.65

1.95

1.84

1.61

1.50

1.39

1.61

2.3

1.73

55

23

9.6

5.6

9.1

5.8

3.7

2.65

1.95

1.84

1.73

1.73

2.3

36

27.5

9.8

8.3

13.4

33

19 4

297.48

9.60

14.9

913

Feb.

9.1

9.1

9.6

4.8

5.7

10.7

64

14.9

7.9

18.2

13.6

51

37

20

13.5

70

45

53

25.5

13.2

8.9

6.4

5.8

107

589

71

41

24.5

19.9

1,167.3

40.3

62.4

3,580

Mar.

30.5

14.2

8.4

6.4

6.4

6.2

6.8

7.3

7.7

6.4

5.0

4.8

5.0

5.2

5.4

4.5

3.2

2.5

2.65

3.35

3.5

3.5

6.0

6.2

4.5

4.8

7.8

6.6

14.8

17.9

11

248.50

8.02

12.4

763

Apr.

21

7.7

4.8

3.15

2.5

5.8

3.35

2.1

1.95

1.95

2.3

2.3

2.65

2.5

1.84

2.1

3.4

*3.7

4.3

45

36

9.4

5.2

4.8

4.8

6.1

3.35

2.3

1.95 

1 95

198.24

6.61

10.2

608

May

2.8

2.3

2.3

1.95

1.95

1.73

39

4.8

2.65

2.48

3.9

2.65

1.95

2.3

5.8

4.3

3.7

3.5

5.2

3.0

2.8

4.4

14.6

7.4

6.9

5.0

9.6

17.5

11.3 

12.2

198.76

6.41

9.92

610

June

6.2

4.5

16.3

 11.4

7.3

6.8

11.0

6.7

4.1

3.35

6.0

19.5

20

15.5

13.0

7.9

5.4

5.6

4.8

3.5

4.2

7.5

6.4

5.2

3.5

3.0

2.65

2.5

2.55 

2 3

218.65

7.29

11.3

671

Calendar year 1955: Max - 420 Min 0.69 Mean(mgd) 9.35 Mean(cfs) 14.5 Ac-ft 10,470

Fiscal fiscal year year 1955-56: igsa-sb: Max wax 389 sus Min Min 1.39 i.as Mean(mgd) meanvmga; 9.51 ».oi Mean(cfs) meanders; 14.7 i*.f Ac-ft AC-IT; 10,680 iu,boi

Peak discharge (base, 300 mgd). Dec. 20 (1 a.m.) 970 mgd (1,500 cfs), 7.26 ft; Feb. 7 (5:30 a.m. 

350 mgd (542 cfs), 4.77 ft; Feb. 12 (8 p.m.) 315 mgd (487 cfs), 4.60 ft; Feb. 25 (7:30 a.m.) 1, 

mgd (1,750 cfs), 7.78 ft; May 7 (6 a.m.) 428 mgd (662 cfs), 5.16 ft.

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for North Halawa and for nearby 

streams.
52 ISLAND OF OAHU

Moanalua Stream near Honolulu

Location. Lat 21°22'50", long 157°52'20", on left bank 5 miles upstream from mouth and 

5 miles north of Honolulu Post Office.

Drainage area. 2.8 sq mi.

Records available . June 1926 to June 1956.

Gage.--Water-stage recorder and concrete weir. Datum of gage is 339.12 ft above mean sea 

level (city and county of Honolulu bench mark).

Average discharge.--30 years, 2.08 mgd (3.22 cfs).

Extremes. Maximum discharge during year, 670 mgd (1,040 cf s) Feb. 25 (gage height,

6.36 ft), from rating curve extended above 71 mgd by test in model of station site; no 

flow for many days.

1926-56: Maximum discharge, 2,960 mgd (4,580 cfs) Nov. 18, 1930 (gage height, 

11.58 ft), from rating curve extended above 71 mgd by test on model of station site; 

no flow at times each year.

Remarks. Records good except those for periods of no gage-height record, which are poor. 

Continuous records of rainfall are obtained at station.

Revisions (fiscal years). WSP 905: Drainage area. WSP 935: 1931(M).

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

-O.Z

-.1 

0.0

.1

.2 

.3 

.4

0

.01

.03

.10

.30

.63

1.13

1.1 

1.5 

2.0 

3.0

1.86

2.9

5.8

13.8

34

72

165

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cts

Ac-ft

July

0

0

0

0

0

0

0

o

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.1

.09

0

0

2.19

0.071

0.110

6.7

Aug.

0

5.4

3.55

.27

.02

0

0

0

0

o

0

0

0

3.1

.04

0

0

13.0

-§71 20.5

1.81

.67

.21

.05

.02

.01

.01

0

0

0

0

56.76

1.83

2.83

174

Sept.

0

0

0

0

Calendar year 1955: Max 140

Oct.

0

0

0

0

Nov.

0

0

0

0

0

0

0

0

.20

.50

2.7

.16

.04

.25

.18

.10

.18

.35

.25

.18

.08

.06

.04

.04

.02

.02

.20

.02

0

0

5.57

0.186

0.288

17

Dec.

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

60

140

*60

*10.6

4.6

2.4

1.51

.74

.35

.14

.06

.04

2.9

283.34

9.14

14.1

870

Jan.

1.49

1.11

.20

.10

.04

.02

.02

0

0

0

0

10

.45

.20

.10

.50

.14

.10

.06

.02

.01

0

0

10

25

7.0

1.67

1.82

5.3

12

6.0

83.35

2.69

4.16

256

Feb.

4.0

3.5

2.55

1.00

._45

5.0

9.0

3.0

1.3

.80

.60

8.0

4.5

4.3

6.0

20

7.0

5.0

4.0

3.0

2.5

2.0

*6.0

41

146

14

13

10

8.0

335. SO

11.6

17.9

1,030

Mar.

5.0

3.2

2.0

1.6

1.4

1.2

1.01

.81

.84

.63

.48

.28

.15

.07

.05

.04

.03

.03

.02

.02

.01

0

0

0

0

.35

1.51

.87

5.7

8.7 

20

56.00

1.81

2. SO

172

Apr.

8.7

2.8

1.40

.81

.48

.92

.55

.17

.06

.03

.02

.02

.01

.01

0.

0

0

0

0

13.8

14.0

2.05

.67

.22

.04

.18

.04

.02

.01

0

47.01

1.57

2.43

144

May

0

1 °

0

0

0

0

 

11.9758

.05

.02

2.75

.54

.17

.04

.16

.11

.03

.02

.21

.04

.02

.02

3.7

.82

2.6

1.51

6,8

6.6

2.25

1.97

44.70

1.44

2.23

137

June

0.92

.44

6.9

2.45

1.15

2.3

6.1

2.05

1.01

1.40

3.9

7.0

7.3

378

2.55

1.47

.86

.63

.59

.35

.13

1.68

1.41

.63

.28

.08

.04

.03

.03

.03

57.51

1.92

2.97

176

Min 0 Mean(mgd) 2.82 Mean(cfs) 4.36 Ac-ft 3.160

Fiscal Fiscal year year 1955-56: 1955-56: Max Max 146 146 Min Min 0 0 Mean(mgd) Mean(mgd) 2.66 2.66 Mean(cfs) Mean(cfs) 4.12 4.12 Ac-ft Ac-ft 2,980 2,980

Peak discharge (base, 150 mgd). Aug. 18 (6 p.m.) 175 mgd (271 cfs), 3.09 ft; Dec. 18-21 (time un 

known) 570 mgd (882 cfs), 5.93 ft; Feb. 25 (6:30 a.m.) 670 mgd (1,040 efs), 6.36 ft.

* Discharge measurement made on this day.

Note. No gage-height record Nov. 2-28, Dec. 18-21, Jan. 4-25, Jan. 30 to Feb. 2, Feb. 5-23, 

Feb. 26 to Mar. 6; record estimated on basis of records for nearby streams and recorded range In 

stage.
ISLAND OP OAHU 53

Kalihi Stream near Honolulu

Location. Lat 21°22'00", long 157°50'45", on right bank at Kioi Pool, 0.4 mile upstream 

from Catholic Orphanage and 4.1 miles north of Honolulu Post Office.

Drainage area. 2.7 sq mi.

Records available. September 1913 to June 1956.

Gage.--Water-stage recorder and concrete control. Datum of gage is 464.40 ft above mean 

sea level, datum of 1929. Prior to Oct. 12, 1923, water-stage recorder at same site 

at datum 2.00 ft lower.

Average discharge. 39 years (1916-20, 1921-56), 4.61 mgd (7.13 cfs).

Extremes. Maximum discharge during year, 1,310 mgd (2,030 cfs) Jan. 24 (gage height, 

8.70 ft), from rating curve extended above 220 mgd by test on model of station site; 

minimum, 0.47 mgd (0.73 cfs) Nov. 7-9.

1913-56: Maximum discharge, about 5,400 mgd (about 8,400 cfs) Nov. 18, 1930, by 

observing on model of station site, the hydraulic conditions which would produce 

floodmarks of 13.8 ft in gage shelter; minimum, 0.06 mgd (0.09 cfs) Oct. 22, 1933.

Remarks. Records good except those for periods of no gage-height record, which are poor. 

Water for domestic use diverted from stream above station.

Revisions (fiscal years). WSP 795: 1921-30(M), 1932(M). WSP 1399: 1931(M).

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

2.1

2.2

2.4 

2.7

3.9

10.9

3.0 

3.5 

4.0 

5.0

19.2

38

63

134

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

1.32

2.3

1.43

1.22

1.13

1.05

1.05

.96

.87

.87

.79

.79

.96

1.32

1.13

1.43

1.05

1.22

.87

.96

1.49

.87

.72

. 79

1.05

.96

2.85

7.3

F^5 1 78

2 05

45.53

1.47

2.27

140

Aug.

io- 1.32

-§78

3.5

2.35

1.78

1.54

1.54

1.54

1.54

2.15

1.43

1.54

al2

a4.5

a3.3

a3.5

14.6

16.1

8.9

4.6

3.3

2.8

2.5

2.35

2.2

2.05

1.90

1.78 1 78

1^54

134.93

4.35

6.73

414

Sept.

1.90

2.65

1.90

4.3

T790

1.66

1.78

1.78

1.43

1.22

1.13

1.13

1.05

1.05

1.05

.96

.96

.96

1.38

1.37

2.05

1.54

1.43

1.22

1.05

.96

.79

.87

.87

.87

43.21

1.44

2.23

133

Oct.

0.87

1.13

.96

1.22

TTis

.96

.87

.79

.72

.72

1.22

.72

.72

.72

.72

.72

.72

.65

.65

.65

.72

.72

1.13

1.05

1.22

.87

.79

.72

.65 

58

772

26.03

0.840

1.30

80

Nov.

0.72

.58

.52

752

.52

.52

.52

.52

1.76

2.55

6.2

1.66

.96

4.1

2.5

1.54

2.2

4.8

3.8

2.5

2.05

2.2

1.90

2.05

1.66

1.64

4.3

1.90

1.54

1 . 32

59,55

T.98

3.06

183

Dec.

1.22

*1.32

1.13

1.13

.96

.96

.96

.96

.87

.96

1.32

.87

.87

.79

.79

.79

.72

772

66

150

59

12.8

8.3

7.1

5.7

5.0

4.6

4.1

3.7

A 0

8.8

337.24

10.9

16.9

1,030

Jan.

4.6

3.7

3.15

2.8

2.65

2.65

2.35

2.35

2.05

1.78

1.78

26.5

5.7

3.5

2.8

6.3

3.15

2.8

2.35

2.2

2.05

2.2

1.90

25

50

9.0

5.3

7.5

8.6 

31

10.2

237.91

7.67

11.9

730

Feb.

6.4

6.0

5.3

4.6

4.4

9.7

24.5

6.4

5.0

7.1

5.3

20.5

9.3

9.6

11.5

43

15.4

12.5

8.5

6.7

6.9

6.0

8.1

41

SI

16.8

16.3

9.9

13.5

437.2

15.1

23.4

1,340

Mar.

12.3

7.6

6.2

5.5

5.3

5.0

4.6

4.4

5.2

3.7

3.3

3.15

2.95

2.8

2.65

2.65

2.5

2.35

3.55

2.65

2.35

2.5

3.75

3.3

4.5

3.95

6.9

3.9

8.0 8 5

19 9

155.90

5.03

7.78

478

Apr.

9.0

5.3

4.1

3.7

3.5

5.4

3.3

2.95

2.65

2.5

2.2

2.2

1.90

2.2

1.90

1.78

2.2

1.78

25 1.66 

"¥.7 28

3.9

3.3

2.95

2.95

2.5

2.35

2.2 2 35

141.42

4.71

7.29

434

May

1.90

1.66

1.54

1.54

1.45

2.45

27

4.1

2.95

3.4

7.4

5.2

5.9

3.5

4.1

3.5

2.8

4.2

4.7

2.95

2.65

4.5

9.9

a5.5

a!2

a4.8

a4.6

as. 2

as. 2 a5 2

a5.o

160.57

5.18

8.01

493

June

a4.2

a4.2

a5.3

a4.5

a3.6

a4.4

8.1

3.7

3.15

3.7

7.4

10.2

9.2

7.2

5.1

4.6

3.3

3.7

5.7

2.8

4.5

8.3

6.2

3.9

2.95

2.8

2.95

2.65

H

141.10

4.70

7.27

435

Calendar year 1955: Max 210 Mln O.52 Hean(mgd) 5.32 Heanfcfs) 8.23 Ac-ft 5,96o

Fiscal year 1955-56: Max 13O Min O.52 Hean(mgd) 5.25 Hean(cfs) 8.12 Ac-ft 5,890

Peak dlschare

1,310 mgd (2,030 cfs), 8.7O f1 

760 mgd (1,180 cfs), 7.76 ft.

* Discharge Discharge measurement measurement made on this day.

. No gage-height record; discharge estimated on basis of Nuuanu Stream.
54 ISLAND OP OAHU

Nuuanu Stream below reservoir 2 wasteway, near Honolulu

Location. Lat 21°20'55", long 157°49'40", on right bank near Pali Road in upper Nuuanu 

Valley, 0.2 mile downstream from reservoir 2 wasteway and 3.5 miles northeast of 

Honolulu Post Office.

Drainage area. 3.4 sq mi.

Records available.--October 1913 to June 1956.

Sage. Water-stage recorder and sharp-crested weirs. Datum of gage is 631.71 ft above 

mean sea level, datum of 1929. Prior to Sept. 7, 1915, staff gage at same site at 

datum 0.03 ft lower. Sept. 7, 1915, to Apr. 4, 1918, staff gage at same site and datum.

Average discharge. 37 years (1917-20, 1922-56), 4.95 mgd (7.66 cfs).

Extremes.--Maximum discharge during year, 652 mgd (1,010 cfs) Jan. 25 (gage height, 

5.51 ft); minimum, 0.01 mgd (1.56 cfs) Oct. 10.

1913-56: Maximum discharge, 4,520 mgd (6,990 cfs) Jan. 16, 1921 (gage height, 

8.74 ft, from floodmarks), from rating curve extended above 300 mgd by test on model of 

station site; minimum, 0.06 mgd (0.09 cfs) Sept. 10, 11, 1925.

Remarks.--Records good except those for period of no gage-height record, which are fair. 

Reservoirs 2,3, and 4 (capacities, 21, 34, and 1,630 acre-ft, respectively) regulate 

flow. Honolulu Board of Water Supply diverts ground water from tunnels in drainage 

area.

Revisions (fiscal years). WSP 985: 1921-35(M).

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

0.4 

.5 

.6

2.4

2.95

3.5

2.0 

3.0

4.1

5.2

9.7

19.P

37.5

105

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

rage

oft

Ac-ft

July

3.15

3.3

2.85

2.8

2.6

2 . 55

2)4

2.25

2.05

2.0

1.90

2.0

2.05

2.0

2.2

1.90

1.90

1.81

1.81

1.68

1.25

1.29

1.29

1.54

1.41

3.5

2.55

1.54

1.33 

1.37

64.77

2.09

3.23

199

Aug.

1.25 ^H

Z.3

Z.05 

1. 95

al.9 

a2.5

al.9

1.81

2.45

1.76

1.81

4.0

2.0

1.81

2.0

4.6

3.9

2.9

2.25

2.2

2.25

2.25

2.2

1.90

2.05

2.0

1.90

1 95

86.15

2.78

4.30

264

Sept.

2.45

2.8

2.05

3.05

1.95 

1 . 90

1.86 

1.90

1.76

1.76

1.72

1.72

1.63

1.63

1.72

1.45

1.58

1.58

2.05

1.81

5.0

2.65

2.25

2.05

1.90

1.86

1.81

1.81

1.81

1.76

61.27

2.04

3.16

188

Calendar year 1955 ; Max 140

Oct.

1.90

1.81

1.63

1.90

1,90

1.76 

1.68 

1.58

1.58

1.58

2.1

1.68

1.58

1.54

1.54

1.72

1.50

1.45

1.45

1.41

1.50

1.45

1.58

1.45

1.45

1.54

1.37

1.33

1.33

1.29 

1.37

48.95

1.58

2.44

150

Mln

Nov.

1.33

1.25

1.25

1.21

1.21

107 

1.17 

1.17

1.87

2.55

4.8

1.76

1.45

2.15

1.72

1.58

2.3

4.0

2.0

1.76

2.25

2.3

1.95

1.81

1.72

1.69

1.77

1.68

1.58

1.50

55.95

1.86

2.88

172

Dec.

1.50

1.58

1.45

1.41

1.37

1.33 

1.37 

1.37

1.33

1.33

1.33

1.25

1.29

1.25

1.21

1.17

1.13

1.13

27

Ii

30.5

12.8

9.0

7.2

6.6

6.0

5.6

5.4

5.1

5.4 

7.4

223.80

7.22

11.2

687

Jan.

6.0

5.1

5.0

4.9

4.6

4 3 

4.'l

4.0

3.9

3.9

15.5

5.5

5.1

4.9

5.6

4.8

4.5

4.3

4.2

4.0

4.1

3.9

4.9

100

29

13.4

10.3

11.7

23 . 5

I7ie

326.7

10.5

16.2

1,000

Feb.

11.7

9.7

8.7

7.4

7.2

22 

11.9

9.4

10.9

9.4

19.6

13.1

11.8

10.2

33

18.9

13.7

11.1

9.2

8.2

7.4

9.6

31.5

IT25. 5

36

40

28

524.5

18.1

28.0

1,610

Mar.

14.0

^72

8.2

7.7

7.2

.6 

.0

>.8

.0

.8

.4

.2

.2

.6

.9

.5

.4

.0

.6

.1

.0

.8

.2

7.1

5.2

8.8

4.6

5.2

5.5 

8.4

190.2

6.14

9.50

584

Apr.

6.0

4.3

4.0

3.9

3.8

3.7 

3.6

3.5

3.45

3.4

3.1

3.2

3.2

3.3

3.15

3.2

3.0

3.2

*14.6

18.0

5.2

3.95

4.0

3.85

3.85

3.75

3.6

3.55

3.75

137.80

4.59

7.10

423

May

3.45

3.35

3.3

3.3

5.2

4.0 

1±B 

3.6

3.45

6.0

6.0

5.0

3.9

5.0

6.5

3.85

3.6

5.8

4.6

3.6

3.55

4.0

5.6

4.2

7.5

4.4

4.1

5.6

5.6

4.6 

4.5

146.95

4.74

7.33

451

June

4.1

4.1

5.4

5.1

4.5

5.S 

*5.8 

4.4

4.1

5.1

5.4

6.2

7. 6

?76

5.1

5.0

4.4

4.4

4.5

3.75

4.4

5.6

5.0

3.85

3.6

4.2

4.5

3.35

3.85

143.20

4.77

7.38

439

1.13 Mean(ragd) 6.39 Mean(cfs) 9.89 Ac-ft 7,160

Fiscal year 1955-56 : Max 100 Mln 1.13 Mean(mgd) 5.49 Mean(cfs) 8.49 Ac-ft 6,170

Peak discharge (base, 150 mgd).--Dec. 19 (11:30 p.m.) 254 mgd (393 cfs), 4.44 ft; Jan. 25 (l a.m.) 

652 mgd (1,010 cfs), 5.51 ft; Feb. 25 (5:50 a.m.) 218 mgd (557 cfs), 4.17 ft.____________

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

nearby streams.
ISLAND OP OAHU 55

East Branch Manoa Stream near Honolulu

Location. Lat 21°19'50", long 157°48'10", on right bank Just downstream from highway 

bridge, 400 ft upstream from confluence with West Branch and 4.2 (corrected) miles 

northeast of Honolulu Post Office.

Drainage area. 1.0 sq ml.

Records available. May 1913 to January 1921, August 1925 to June 1956.

Gage. Water-stage recorder and combination Parshall flume and concrete weir. Datum of 

gage Is 294.50 ft above mean sea level (Honolulu Board of Water Supply bench mark). 

Prior to May 20, 1914, staff gage at site 200 ft upstream at different datum. May 20, 

1914, to Jan. 16, 1921, water-stage recorder at site 50 ft upstream at different datum. 

Aug. 18, 1925, to Oct. 18, 1933, water-stage recorder at present site at datum 0.41 ft 

higher.

Average discharge. 37 years (1913-20, 1926-56), 3.15 (4.87 cfs).

Extremes. Maximum discharge during year, 350 mgd (542 cfs) Aug. 2 (gage height, 3.86 ft), 

from rating curve extended above 21 mgd by test on model of station site; minimum, 

1.74 mgd (2.69 cfs) Dec. 15-18.

1913-21, 1925-56: Maximum gage height, 10.4 ft Jan. 16, 1921, from floodmarks, 

site and datum then In use (discharge, 2,000 mgd or 3,090 cfs, estimated from rating 

curve extended above 37 mgd); minimum discharge, 0.4 mgd (0.6 cfs) June 7, 8, 1926.

Remarks.--Records good except those for period of no gage-height record, which are'falr. 

Honolulu Board of Water Supply at times diverts a small amount of ground water from 

tunnels in drainage area.

Rating table, fiscal year 1955-56 (gage height, In feet, and discharge,

In million gallons a day) 

(Shifting-control method used June 10-16, 20-30)

0.3 

.4

1.37

2.1

2.95

3.9

7.3

1.1 

1.3 

1.5 

1.7 

2.0

10.0

15.0

22.2

31

47

Discharge, in million gallons a day, fiscal year July 1955, *x> June 1956

Day

1

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

16

17

18

19

20

ai

22

23

24

25

26

27

28

29

30

31

Total

Mean:

mgc

cfs

Ac-ft

July

5.0

5.5

5,. 6

4.3

3.S

3.35

3.4

3.05

2.95

2.85

3735

3.9

5.0

3.9

3.8

3.15

3.05

2.85

4.4

4.3

2.85

2.85

2.85

4.0

3.4

4.0

3.85 

3.35

2.95

3.25

111.15

3,59

5.55

341

Aug.

2.S

1673

12.4

3.9

3.5

3.25

3.05

4.7

*3.4

3.7

4.2 

3.15

3.6

8.8

4.0

3.35

3.4

7.2

6.1

7.8

3.6

3.35

3.35

3.25

3.35

3.05

3.05

2.85 

2.8

3.05

2.85

143.15

4.62

7.15

439

Sept.

5.5

5.9

3.6

5.1

3.25

2.95

2.85

3.65

2.95

2.7

2.7 

2.7

2.6

2.6

2.6

2.6

2.5

2.5

3.15

2.85

:LI

A. 3

3.2

2.7

2.6

2.6

2.6

2.6 

2.6

? A1^ g -*°

98.80

3.29

5.09

303

Oct.

2.7

2.7

*2.7

3.65

3.15

2.5

2.35

2.25

2.2

2.2

4^6 

3.7

2.5

2.35

2.25

2.65

2.25

2.2

2.35

2.25

2.2

2.1

2.25

2.25

2.25

2.2

2.05

1^95 

1.95

1.95

2.1

76.75

2.48

3.84

236

Nov.

1.95

1.95

1.95

1.88 TTee

1.88

1.88

1.95

2.8

5.1

4.9 

2.25

1.95

3.15

2.25

2.35

2.6

7.0

2.8

2.25

2.7

2.9

2.5

2.25

*2.1

2.4

2.85

2.1 

2.1

2.05

78.67

2.62

4.05

241

Dec.

2.05

2.25

2.05

1.95

1.88

1.81

1.81

1.81

1.81

1.81

1.88 

1.81

1.81

1.81

1.74

1.74

1.74

1.74

all

*a35

15.9

4.9

3.5

4.0

3.05

2.85

2.6

2.5 

2.45

3 * 25

5.5

130.00

4.19

6.48

399

Jan.

2.85

2.45

2.35

2.25

2.25

2.2

2.1

2.25

2.2

2.25

2.2 

9.7

3.15

2.45

2.25

2.2

2.1

*1.95

1.88

1.88

1.81

1.88

1.81

2.9

11.7

3.5

2.35

4.1 

7.4

7.7 

3.4

101.46

3.27

5.06

311

Feb.

2.8

3.05

2.5

2.75

2.8

3.8

6.3

2.8

2.5

6.0

2.95 

5.1

3.8

3.5

3.35

6.2

4.8

5.6

4.4

3.8

3.25

2.95

3.65

10.9

12.8

5.0

7.6

4.4 

5.2

134.55

4.64

7.18

413

Mar.

4.6

3.7

3.25

3.05

2.95

2.85

*2.7

2.5

2.7

2.5

2.6 

2.35

2.25

2.25

2.25

2.25

2.2

2.4

3.4

2.5

2.25

2.35

5.8

2.95

3.15

3.15

3.8

2.85 

4.6

5.4

6.2

97.75

3.15

4.87

300

Apr.

4.3

2.85

2.6

2.5

2.45

4.3

2.5

2.35

2.25

2.35

2.25 

2.2

? g "1 L

2.1

2.2

2.25

2.9

2.2

2.5

19.6

19.5

3.9

*2.95

2.6

2.6

2.85

2.45

2.5 

2.35

2.5

112.95

3.76

5.82

347

May

2.25

2.2

2.1

2.1

2.1

3.3

10.7

2.6

2.45

3.65

3.55 

3.3

2.7

3.45

8.5

3.15

2.8

9.3

5.0

3.03

3.05

3.45

4.4

*.?

7^3

10.0

5.0

5.5 

6.2

4. 6 

4.7

136.65

4.41

6.82

419

June

4.6

5.6

7.9

4.6

3.8

6.2

*5.2

4.0

3.6

4.7

4.7

5.9

5.8

5.6

4.3

4.7

4.0

4.0

4.4

5.55

5.6

6.8

5.9

4.9

3.6

5.9

4.7

5.55 

5.5

5.7

142.90

4.76

7.36

459

Calendar year 1955: Max 57 Min 1.74 Mean(mgd) 4.29 Mean(cfs) 6.64 Ac-ft 4,800

Fiscal year 1955-56: Max 35 Mln 1.74 Mean(mgd) 3.73 Mean(cfs) 5.77 Ac-ft 4,190

Peak discharge (base, 200 mgd).--Aug. 2 (8 p.m.) 350 mgd (542 ofs), 3.86 ft; Dac. 20 (9 p.m.) 

256 mgd (365 cfs), 5.41 ft; Apr. 21 (1 a.m.) 256 mgd (565 cfs), 5.42 ft; May 7 (5 a.m.) 272 mgd 

(421 cfs), 5.55 ft._______________________________________________________________

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for West Branch Manoa Stream near 

Honolulu.
56 ISLAND OF OAHU

West Branch Manoa Stream near Honolulu

Location. Lat 21°19'50", long 157°48'15", on left bank 100 ft upstream from highway 

bridge and 4.2 miles northeast of Honolulu Post Office.

Drainage area. 1.1 sq mi.

Records available. May 1913 to January 1921, August 1925 to June 1956.

Gage. Water-stage recorder and combination Parshall flume and V-notch weir. Datum of

P

age is 290.84 ft above mean sea level (Honolulu Board of Water Supply bench mark). 

rior to June 17, 1914, staff gage at same site at different datum. June 17, 1914, to 

Jan. 16, 1921, water-stage recorder at site 150 ft upstream at different datum. Aug. 4, 

1925, to Mar. 15, 1928, water-stage recorder at present site at datum 3.40 ft lower.

Average discharge. --37 years (1913-20, 1926-56), 2.52 mgd (3.90 cfs).

Extremes . Maximum discharge during year, 370 mgd (572 cfs) Aug. 2 (gage height, 3.94 ft), 

from rating curve extended above 33 mgd by test on model of station site; minimum, 

0.16 mgd (0.25 cfs) Dec. 18, 19.

1913-21, 1925-56: Maximum gage height, 10.4 ft Jan. 16, 1921, from f loodmarks , 

site and datum then in use (discharge, 2,100 mgd or 3,250 cfs, estimated from rating 

curve extended above 40 mgd); minimum discharge, about 0.05 mgd 0.08 cfs) Mar. 16, 

22, 1926.

Remarks . Records good. 

irrigation.

Small quantity of water diverted above station occasionally for

Rating table, fiscal year 1955-56 (gage height, In feet, and discharge,

In million gallons a day)

(Shifting-control method used July 1-4, July 29 to Aug. 2, Aug. 7, 8, 

Nov. 5-9, 11-14, 20-25)

0.05 

.1 

.2 

.3 

.4

0.07

.22

.67

1.28

2.0

3.8

0.8 

1.0 

1.2 

1.6 

2.0

6.5

11.4

18.7

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

31

Total

Mean:

mgc

cfs

Ac-ft

July

5.3

4.5

1.26

1.78

1.49

1.25

1.04

.79

.73

.67

.62 

1.06

1.47

2.3

2.1

2.95

1.22

1.25

.85

2.25

2.5

1.04

.91 

.91

3.6

2.1

5.2

2.8

1.98 

1 52

1. 82

59.26

1.91

2.96

182

Aug.

1.28

11

11.8

2.9

2.25

1.82

1.35

4.7

*2.4

2.4

4.8 

1.86

2.35

8.7

2.95

1.78

2.6

6.3

4.2

4.1

1.78

1.57

1.57 

1.35

1.84

1.28

1.22

1.10

.98 

1 23

. 98

106.44

3.43

5.31

327

Sept.

5.5

7.7

2.2

5.6

1.71

1.28

1.23

1.77

1.10

.91

.85 

.79

.73

.67

.73

.62

.62

.57

1.72

1.07

10.3

2.6

1.48 

1.04

.79

.67

.62

.73

.98 

.85

57.43

1.91

2.96

176

Oct.

1.32

1.24

*1.34

3.4

3.15

1.42

.98

.79

.67

.67

3.65 

2.0

.85

.67

.62

.91

.57

.47

.47

.47

.42

.38

.52 

.62

.62

.42

.38

^34

.34 

.34

.48

30.52

0.985

1.52

94

Nov.

0.38

.26

.26

.30

.28

.22

.30

.26

1.45

2.35

3.55 

.45

.42

1.87

.98

1.21

2.7

6.5

1.60

.90

1.51

2.3

1.42 

.96 *.67

.78

1.10

.62

.62 

.47

36.69

1.22

1.89

113

Dec.

0.42

.57

.42

.38

.34

.30

.30

.34

.26

.26

.30 

.26

.22

.22

.22

^19

.19

.19

16.0 *43

19.1

5.4

3.05 

2.25

1.86

1.57

1.35

1.22

1.04 1 52

3^7

106.44

3.43

5.31

327

Jan. '

1.22

.91

.85

.79

.73

.67

.57

.57

.57

.52

.52 

8.3

1.97

1.10

.79

.73

.62

.57

.47

.42

.38

.38

372*

22.5

3.7

1.75

2.15

4.6

6.2

2.6

70.69

2.28

3.53

217

Feb.

1.71

1.71

1.16

1.16

1.26

1.62

3.05

1.22

.91 27T

1.28

5.6

2.75

2.3

1.81

8.3

5.1

4.6

3.35

2.5

1.78

1.50

2.65 

16.0

.23

7.2

10.9

5.5

6.6

129. 22*

4.46

6.90

" 397

Mar.

^3

3.3

2.6

2.25

1.93

1.78

*1.64

1.50

1.50

1.28

1.28 

1.04

.91

.85

.91

.79

.67

.62

1.46

.96

.62

.67

2.95 

1.23

3.1

2.4

4.6

1.71

2.85

3.6

60.10

1.94

3.00

184

Apr.

2.55

1.50

1.16

.98

.85

2.0

.85

.73

.67

.62

.57 

.52

.47

747

.52

.57

.80

.52

.55

9.0

13.3

1.98

1.22 

.91

.79

1.06

.62

.62

.57-

.57

47.54

1.58

2.44

146

May

0.52

.42

.42

.38

.38

1.13

8.1

1.10

.79

2.25

3.0 

2.7

1.71

1.74

10.8

2.4

1.42

4.3

3.05

1.50

1.28

1.78

2.15 

1.85

5.4

5.8

2.95

3.95

7.5

4.4

3.65

88.82

2.87

4.44

273

June

4.6

4.4

8.3

5.1

3.4

6.8

5.0

3.15

2.6

4.9

6.0 

8.0

8.4

8.0

4.1

4.2

3.15

2.75

2.65

1.7S

3.7

5.5

5.1 

3.6

2.25

2.5

2.95

1.78

1.82

2 3

128.78

4.29

6.64

395

Calendar year 1955 : Max 62 Mln 0.19 Mean(mgd) 2.68 Mean(cfs) 4.15 Ac-ft 3,000 

Fiscal year 1955-56 : Max 43 Mln 0.19 Mean(mgd) 2.52 Mean(cfs) 3.90 Ac-ft 2,830

Peak discharge (base, 200 mgd).--Aug. 2 (7:30 p.m.) 370 mgd (572 cfs), 3.94 ft; Dec. 20 (9 p.m.) 

225 mgd (548 cfa), 5.51 ft; Jan. 25 (2 a.m.) 280 mgd (455 cfa), 5.46 ft.__________________

* Discharge measurement made on this day.
ISLAND OP OAHU 57

Pukele Stream near Honolulu

Location. Lat 21°18'35", long 157°47'30", on right bank 200 ft upstream from bridge on 

Palolo Belt Road, 0.6 mile upstream from confluence with Waiomao Stream, and 4.8 miles 

east of Honolulu Post Office.

Drainage area. 1.2 sq mi.

Records available. April 1912 to September 1913, June 1926 to June 1956.

Gage.--Water-stage recorder and V-notch weir. Datum of gage is 344.78 ft above mean sea

 level (Honolulu Board of Water Supply bench mark). Apr. 16, 1912, to Sept. 30, 1913, 

staff gage Just above present site at different datum.

Average discharge.--30 years (1926-56), 1.27 mgd (1.96 cfs).

Extremes. Maximum discharge during year, 318 mgd (492 cfs) Dec. 19 (gage height, 4.65 ft),

 from rating curve extended above 62 mgd as explained below; minimum, 0.17 mgd 

(0.26 cfs) Nov. 10.

1912-13, 1926-56: Maximum discharge, 1,680 mgd (2,600 cfs) Apr. 11, 1930 (gage 

height, 7.75 ft, from floodmarks), from rating curve extended above 62 mgd by test on 

model of station site; minimum, 0.07 mgd (0.11 cfs) Nov. 15-25, 1945.

Remarks. Records good except thoae for periods of no gage-height record, which are fair. 

A 2-inch pipe diverts water from stream above station.

Revisions (fiscal years). WSP 835: 1930(M).

Rating table, fiscal year 1955-56 (gage height, in feet, and 

discharge, in million gallons a day)

0.9

1.0

1.1

1.2 

1.4

0.15

.42

.87

1.50

3.35

1.7 

2.0 

2.5 

3.0

7.8

14.3

32

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

rage

cfs

Ac-ft

July

0.54

1.00

.58

a. 60

a. 58

a. 58

a. 60

.58

.54

.50

.50

.50

.50

.46

.42

.42

.38

.35

.32

.41

.32

.32

.32

.35

.35

.35

.69

.46

.38 

. 38

14.70

0.474

0.733

45

Aug.

0.42

5.3

4.0

a. 70

a. 62

a. 60

a. 57

a. 65

a. 62

a. 58

a. 58

.54

.58

1.73

.58

.58

.62

1.48

1.06

1.22

.77

.77

.77

.77

.72

.67

.62

.54

.54 

'.5050

30.20

0.974

1.51

93

Sept.

0.50

.54

.50

.54

.50

.50

.50

.63

.50

.50

.46

.46

.46

.42

.42

.38

.38

.38

.42

.38

-ili

.52

.38

.32

732

.32

.35

.35

.35 

.35

13.37

0.446

0.690

41

Oct.

0.35

.35

.35

*.32

.32

.27

.27

.27

.27

.27

.29

.27

.27

.24

.27

.32

.27

.27

.27

.27

.27

.27

.27

.24

.24

.24

.22

722

.24 

.24

.22

8.45

0.273

0.422

26

Nov.

0.22

.22

.22

.22

.19

.19

.19

.19

.19

1.46

1.19

.24

.24

.41

.27

.27

.27

2.65

.38

.35

.38

.38

.38

.38

.38

.35

.81

*.35

.35 

.35

13.67

0.456

0.706

42

Dec.

0.35

.35

.32

.32

.32

.32

.32

.29

.27

.27

.27

.24

.24

.24

.24

.22

.22

.19

197T"

*35

14.8

2.55

1.17

1.14

1.04

1.04

1.04

.98

.92 

92

l!29

85.98

2.77

4.29

264

Jan.

0.92

.77

.77

.72

.72

.67

.58

.54

.54

.50

.±46

4.3

.97

.58

.54

.58

.62

.62

.58

.58

.54

.54

.50

.50

3.0

1.15

.54

.54

1.69

3.05 

1.28

29.89

0.964

1.49

92

Feb.

0.82

[g7

!87

.87

.87

1.07

3..0

.98

.82

1.50

.92

2.15

1.98

1.11

.98

1.11

1.30

1.93

1.50

1.30

1.17

1.17

1.11

2.25

3.25

2.05

3.35

1.87

1.50

43.67

1.51

2.34

134

Mar.

1.37

1.23

1.17

1.17

1.17

1.11

1.04

*.92

.87

.77

.72

.67

.62

.58

.58

.54

.50

.54

.50

.46

.46

.50

1.15

.50

.84

.69

.72

.58

.88

2J15

26.08

0.841

1.30

80

Apr.

1.69

.87

.87

.87

.87

.82

.77

.72

.72

.67

.62

.58

.58

.54

.54

.50

.50

.50

974~ .46

11.0

"1772

*.82

.82

.92

.92

.92

.92

.87

. 87

42.87

1.43

2.21

132

May

0.87

.82

.77

.72

.67

.72

2.5

^54

.54

.98

.97

.62

.66

1.56

2.5

.82

.77

5.7

2.65

.98

.92

1.00

1.19

1.76

2.15

2.95

1.80

1.50

2.05

1.75 

2.0

45.43

1.47

2.27

139

June

1.58

1.73

2.9

1.83

1.50

2.3

1.87

1.37

1.23

1.49

1.48

3.35

3.8

3.25

1.83

1.50

1.43

1.37

1.50

1.30

1.30

1.62

1.58

1.30

1.17

1.23

1.30

1.17

1.11

1.11

51.50

1.72

2.66

158

Calendar year 1955; Max 47 Min 0.19 Mean(ragd) 1.53 Mean(cfs) 2.37 Ac-ft 1,710

Fiscal year 1955-56: Max 35 Min 0.19 Mean(ragd) 1.11 Mean(cfs) 1.72 Ac-ft 1,250

Peak discharge (base, 90 mgd).--Dec. 19 (10 p.m.) 318 mgd (492 ofs), 4.65 ft; Apr. 21 (1:30 p.m.) 

215 mgd (333 efs), 4.11 ft._______________________________________________________

* Discharge measurement made on this day.

a Ho gage-height record; discharge estimated on basis of adjoining good record and records for 

Waiomao Stream.
58 ISLAND OP OAHU

Waiomao Stream above Pukele Stream, near Honolulu

Location. Lat 21°18'30", long 157°47'10", on left bank 300 ft west of road, 1 mile upstream from confluence with Pukele Stream, and 5 miles east of Honolulu Post Office.

Drainage area. 1.0 sq mi.

Records available. April 1911 to December 1912, June 1926 to June 1956.

Gage. Water-stage recorder and V-notch weir. Datum of gage is 373.66 ft above mean sea 

level (Honolulu Board of Water Supply bench mark). Apr. 12, 1911, to Dec. 31, 1912, 

staff gage at site 0.3 mile downstream at different datum.

Average discharge. 30 years (1926-56), 1.17mgd (1.81 cfs).

Extremes.--Maximum discharge during year, 375 mgd (580 cfs) Dec. 19 (gage height, 4.86 ft), 

from rating curve extended above 58 mgd as explained below; no flow Nov. 2-8, Dec. 9, 

10, 13-18.

1911-12, 1926-56: Maximum discharge, 602 mgd (931 cfs) Oct. 15, 1938 (gage height, 

5.43 ft), from rating curve extended above 58 mgd by test on model of station site; no 

flow at times.

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

 Honolulu Board of Water Supply diverts ground water from tunnels in drainage area.

Rating tables, fiscal year 1955-56 (gage height, in feet, and discharge, 

in million gallons a day)

July 1 to Dec. 19 Dec. 2O to June 3O

0.85 0 1.5 2.9 1.0 0.06 1.8 6.7

.9 .02 1.7 5.4 1.1 .22 2.0 10.6

1.0 .10 1.9 8.6 1.2 .55 2.2 16.5

1.1 .32 2.2 16.5 1.3 1.07 2.4 24.5

1.2 .69 2.6 34 1.4 1.78 2.6 34

1.3 1.22 3.0 56 1.5 2.7 3.O 56

1.4 1.95 1.6 3.85

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

CfE

Ac-ft

July

al.O

1.45

.'63

.58

.29

.56

.21

.17

.13

.10

.10

.65

.67

.56

.38

.26

.26

.15

.59

.32

.17

.13

.19

.16

.21

.92

.52

.29

.21

25

12.27

0.396

0.613

38

Aug.

0.15

6.4

479

.92

.52

.35

.26

.79

*.58

.49

.47

.23

.26

2.9

.82

.41

.29

2.5

1.86

1.52

.48

.32

.26

.25

.23

.19

.19

.15

.11

717

.13

29.06

0.957

1.45

89

Sept.

0.86

1.10

!98

.41

.26

.17

.46

.32

.17

.15

.11

.10

.07

.08

.06

..05

.05

.25

.21

.60

.88

.66

.55

.17

.11

.10

.11

.09

.15

9.48

0.316

0.489

29

Oct.

0.07

.10

.15

*.54

.46

.26

.17

.11

.08

.06

.70

.52

.19

.11

.08

.43

.17

.09

.10

.10

.06

.05

.07

.08

.11

.17

.11

.08

.05

.05

.07

4.95

0.160

0.248

15

Nov.-

0.06

0

0

0

0

0

O

0

.02

2.25

2.45

.59

.26

.99

.69

.41

.41

5.0

T67

.32

.25

.41

.58

.23

.19

.24

2.55

*.74

.26

.17

17.32

0.577

0.895

55

Dec.

0.11

.34

.15

.09

.06

.05

.05

.02

0

0

.09

.02

0

0

0

0

0

0

21

5_2

28.5

5.25

1.51

1.52

.84

.47

.56

.28

.22

.45

2.2

115.34

3.66

5.66

54S

Jan.

1.25

.94

.56

.25

.22

.14

.12

.11

.11

.11

.14

5.7

1.56

.47

.50

*.55

.28

.20

.16

.14

.12

 1JL

^09

.50

3.65

1.65

.55

.75

3.6

4.5

1* 82

30.23

0.975

1.51

93

Feb.

0.72

.88

.66

.47

.52

1.26

2.95

.63

.40

2.65

.75

1.57

2.0

1.00

.88

l.OO

.85

1.32

.94

.82

.45

.36

.56

2.8

5.8

1.21

2.7

1.24

.89

56.04

1.24

1.92

111

Mar.

1.07

.68

.40

.28

.22

.22

.20

.16

.20

.18

.22

.20

.12

.12

.12

.14

.11

.09

720

.11

.09

.11

1.69

.72

.86

.98

.82

.51

1.07

1.71

2.45

16.05

0.518

0.801

49

Apr.

2.4

.55

.55

.25

.25

.91

.56

.20

.16

.14

.12

.11

.08

.07

.06

.06

.19

.11

.25

15.3

16.5

2.45

*1.02

.55

.56

.48

.53

.22

.22

 28

42.31

1.41

2.18

150

May

0.28

.18

.16

.12

.09

.40

5.05

.56

.22

.58

.77

.56

.73

1.74

2.25

.47

.50

7.0

2.75

.63

.52

1.09

1.69

1.86

2.05

3.6

2.5

1.72

1.97

1.41

1.54

41.99

1.35

2.09

129

June

1.14

1.28

2.7

1.15

.65

1.52

1.44

.68

.51

.81

.78

2.5

2.75

2.55

1.07

.68

.58

.78

a. 90

.47

a. 55

al.l

a. 90

a. 70

.51

a. 60

a. 65

.40

.33

.33

30.99

1.03

1.59

95

Calendar year 1955: Max 72 Min 0 Mean(mgd) 1,56 Mean(cfs) 2.41 Ac-ft 1,750

Fiscal year 1955-56: Max 52 Min 0 Mean(mgd) 1.05 Mean(cfs) 1.62 Ac-ft 1,180

Peak discharge (base, 70 mgd). Dec. 19 (10 p.m.) 375 mgd (580 cfs), 4.86 ftj Apr. 21 (1:30 a.m.) 

110 mgd (170 cfs), 3.74 ft.

* Discharge measurement made on this day.

a No gage-height record} discharge estimated on basis of records for nearby stations.
ISLAND OF OAHU 59

Palolo Stream near Honolulu

Location.--Lat 21°17'35", long 157°48'25", on left bank 250 ft downstream from bridge on 

Palolo Avenue and 3.9 miles east of Honolulu Post Office.

Drainage area. 3.0 sq mi.

Records available. April 1952 to June 1956.

Gage. Water-stage recorder and steel plate in concrete-lined channel. Altitude of gage 

is 95 ft (from topographic map).

Extremes. Maximum discharge during year, 1,150 mgd (1,780 cfs) Dec. 19 (gage height,

3.90 ft), from rating curve extended above 75 mgd as explained below; minimum, 0.15 mgd 

(0.23 cfs) Sept. 28, Nov. 6-9.

1952-56: Maximum discharge, 1,560 mgd (2,410 cfs) Nov. 29, 1954 (gage height, 

4.52 ft), from rating curve extended above 75 mgd by test on model of station site; 

minimum, 0.10 mgd (0.16 cfs) Sept. 29, 1953.

Remarks. Records fair except those for periods of no gage-height record, which are poor.

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

1.2

1.3

1.4

1.5

1.6

1.7

O.12 

.24 

.50

1.00

2.0

4.5

2.4 

2.6

9.3

17.0

33

82

153

275

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

3O

31

Total

Mean:

mgd

cfs

Ac-ft

July

1.50

2.95

1.55

1.76

1.45

1.35

1.45

1.35

.94

.58

.50

.59

1.33

1.14

1.O8

.79

.46

.63

.46

1.61

.89

.38

745

.55

.59

.55

2.7

1.47

.88

.71 

.88

33.52

1.08

1.67

103

Aug.

0.71

~87§ 10.4

1.25

.82

.82

.71

1.33

1.12

1.39

1.92

.88

1.16

5.1

1.45

.94

1.19

4.1

2.4

2.7

1.25

.94

.83

.86

.80

.62

.75

.54

.49

.63 

^42

57.32

1.85

2-. 86

176

Sept.

0.96

1.74

.76

1.64

.71

.58

.62

l.OO

.99

.59

.42

.42

.34

.32

.44

.28

.26

.34

.82

.58

2.45

2.65

1.45

.94

.62

.58

.42

.64

.50

. 62

24.68

O.823

1.27

76

Oct.

0.49

.29

.32

.55

.93

.51

.34

.28

.26

.26

1.08

Tsff

.37

.30

.30

1.0

.36

.31

.32

.32

.30

.29

.28

.28

.31

.36

.29

.24

.22

.20 

727

12.21

O.394

0.610

37

Nov.

O.25

.18

.17

.20

.21

.20

ii| 715

.48

6.0

7.4

1.16

.63

1.51

1.20

.81

.97

6.4

1.49

.82

.82

.88

.94

.76

*.65

.58

3.8

.88

.71

.58

41.02

1.37

2.12

126

Dec.

O.5O

.80

.50

.42

.36

.36

.36

.39

.36

.37

.36

.30

.28

.28

.26

'.22

.22

.21

87

*215

93

U.6

4.5

3.5

2.6

2.1

1.8

1.6

1.5

1*8 

4.0

434.55

14.0

21.7

1,330

Jan.

3.0

2.2

1.5

1.2

1.1

.95

.80

.63

.62

.60

.60

27.5

2i2

1.9

1.4

.94

.88

.82

.76

.71

.71

.67

.68

13.8

5.3

2.35

2.0

6.4

1O.5 

3.05

1O0.77

3.25

5.03 '309

Feb.

1.65

1.68

1.55

1.47

1.47

3.25

6.4

1.76

1.35 57l~

1.88

11.2

4.7

2.35

1.88

2.0

2.15

5.5

2.7

2.2

1.65

1.45

1.45

6.9

9.6

7.4

11.8

TTf

3.O5

110.24

3. SO

5.88

338

Mar.

2.55

2.15

1.76

1.65

1.55

1.53

1.30

1.25

1.25

1.38

1.08

1.08

.94

1.00

1.16

1.24

1.08

1.05

.97

.82

.71

1716

4.6

1.76

2.85

2.85

2.55

2.0

3.75 

4.2

6.1

59.32

1.91

2.96

182

Apr.

5.0

1.76

1.55

1.35

1.25

2.0

1.35

1.08

.94

.94

.88

.82

.71

.66

782

.76

2.0

1.65

2.3

35.5

41

5.6

*2.8

1.55

1.35

1.45

1.35

1.3O

1.16

 :..

122.13

4.O7

6.3O

375

May

1.25

1.16

1.16

1.08

1.08

1.41

7.6

1.32

1.19

2.3

2.55

1.55

1.76

4.9

7.1

1.88

1.45

20

12. 0

2.95

2.55

3.15

4.8

5.8

6.3

9.0

5.3

5.9

7.O 

5.7

6.3

137.49

4.44

6.87

422

June

5.9

5.9

8.8

5.O

3.5

5.8

4.5

3.35

2^35

3.3

3.3

9.4

10.5 ^778

3.8

3.2

2.55

2.75

4.2

2.55

2.75

5.0

5.O

3.5

2.75

2.6

4.5

2.95

2.75 

2.9

133.15

4.44

6.87

4O9

Calendar year 1955: Max 258 Min 0.16 Mean(mgd) 5.30 Mean(ofs) 8.2O Ac-ft 5,930

Fiscal year 1955-56: Max 213 Min 0.16 Mean(mgd) 3.46 Mean(cfs) 5.35 Ac-ft 3,880

Peak discharge (base, 220 mgd). Dec 

282 mgd (436 cfs), 2.61 ft.

19 (11 p.m.) 1,150 mgd (1,78O cfs), 3.9O ft; Apr. 21 (2 a.m.)

* Discharge measurement made on this day.

Note. No gage-height record Oct. 13-31, Dec. 23 to Jan. 11, Jan. 13-16; discharge estimated on 

basis of records for Waiomao and Pukele streams.

527571 O -59 -5
60 ISLAND OF OAHU

Maunawili ditch near Waimanalo

Location.--Lat 21°20'45", long 157°45 1 10", on left bank 80 ft downstream from Aniani Nui 

Ridge tunnel and 2.1 miles west of Waimanalo.

Records available. March 1954 to June 1956.

Gage.--Water-stage recorder and sharp-crested weir. Altitude of gage is 390 ft (from topographic map).

Extremes.--1954-56: Maximum daily discharge, 6.2 mgd (9.6 cfs) Feb. 23, 1955; no flow at 

times.

Remarks. Records fair except those for periods of no gage-height record, which are poor. 

ETEch diverts water from headwaters of Maunawili Stream for irrigation in vicinity of 

Waimanalo.

Discharge, In million gallons a day, 1954

Day

1

2

3

4

5

6

7

8 

9

10

Mar.

_

_

-

-

-

-

.

-

-

Apr.

2.3

3.0

2.8

2.8

*2.7

2.6

2.55

2.55 

2.55

2.55

May

3.0

2.6

2.4

2.4

2.4

2.55

2.35

2.7 

2.55

2.4

June

3.4

2745

3.15

3.0

2.95

2.85

5.0

2.85 

2.8

2.8

Day

11

12

13

14

15

16

17

18 

19

20

Mar.

_

-

-

-

_

_

.

-

_

Apr.

2.5

2.5

2.5

2.4

2.4

2.4

3.15

2.7 

2.5

2.4

May

2.35

2.35

2.25

2.25

2.2

2.2

2.4

2.4

2.15

2.35

June

2.7

2.7

2.6

2.6

2.55

2.55

2.55

2.55 

2.5

2.5

Day

21

22

23

24

25

26

27

28 

?9

30

31

Mar.

_

-

-

-

-

-

-

-

2.55

2.6

_

-

Apr.

2.5

2.4

2.5

2.4

2.6

2.7

*1.92

2.2 

4.4

3.45

-

2.63

242

May

2.5

8.55

2.6

2.6

2.6

2.8 *2.8

2.7 

2.6

2.85

3.6

3 91

241

June

2.4

2.4

2.5

2.5

2.5

2.4

2.4

2.35 

2.5

2.35

-

244

* Discharge measurement made on this day.

Discharge, in million gallons a day, fiscal year July 1954 to June 1955

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

Mean:

rage

ofs

Ao-ft

July

2.35 

2.55

2.45

2.8

2.5

1.60

2.35

*2.55

2.55

2.85

2.7

2.6

2.6

2.55

2.6

*2.55

2.85

2.8

2.7

2.8

2.6

2.6 

2.6 

2.6

2.6

2.55

2.55

2.95

TTTo

2.3

2,8

79.15

2.55

3.95

243

Aug.

fro*

3.4

3.25

5.65

3.25

5.1

3.15

2.95

5.25

5.4

3.25

3.15

5.1

5.0

2.85

2.8

2.8

2.6

2.85

2.85

2.8 

2.85 

2.8

5.15

5.4

5.3

3.25 

5.15

3.15

3.25

95.10

5.07

4.75

292

Sept.

5.3 

3.25

*5.25

5.15

5.15

3.25

3.15

5.15

5.1

5.1

3.0

3.0

3.0

2.95

2.95

3.0

5.0

2.95

2.95

2.8

2.85

2.95 

2.8 

2.8

2.95

2.85

2.8

2.7 

2.8

2.6

89.55

2.98

4.61

275

Oct.

2.6 

2.95

2.7

2.7

2.7

2.6

2.6

2.6

2.8

5.15

2.85

2.85

3.0

3.4

S7T

3.0

5.0

2.95

5.0

5.15

2.8

*2.7 

2.6 

2.6

2.7

2.7

2.6

2.6 

2.6

2.95

2.95

87.50

2.82

4.36

269

Nov.

2.7 

2.6

2.6

2.55

2.55

2.55

2.55

2.55

2.5

2.5

2.4

2.4

2.4

2.6

2.5

2.55

2.4

2.4

2.4

2.4

2.4

2.4 

2.4 

2.4

2.4

2.4

2.4

e.18

75.38

2.51

5.88

251

Dec.

0.09 

.06

756

.06

.09

.12

.09

.06

.29

.68

.60

.60

.60

.68

.76

1.06

.75

.64

.60

.57

1.56

1.85 

1.50 

1.62

1.80

1.86

2.00

2.15 

1.80

1.62

1.56

27.54

0.888

1.57

85

Jan.

1.56 

1.44

1.62

1.75

2.0

1.80

1.62

al.6

al.5

al.5

al.5

al.5

a2.2

*a2.7

2.85

2.85

2.8

2.7

2.6

2.6

5.2

.75 

.64 

.60

1715

2.95

2.8

2.8 

2.7

2.95

2.7

64.54

2.08

5.22

198

Feb.

2.6 

2.95

2.6

2.55

2.8

2.8

4.2

.29

.15

715

.15

.15

.15

.15

.15

.45

.68

.57

.64

.49

.80

5.15 

*6.2 "573

1.61

.48

.25

.15

 ., 

 ----

40.61

1.45

2.24

125

Mar.

0.09 

.27

.38

.46

.40

.34

.34

.30

.09

.27

.57

.75

.49

.60

.89

.64

.49

.55

.49

.41

1.17

£§7 

1.06

1.53

1.44

1.44

1.44 

1.44

1.44

1.39

26.40

0.852

1.32

81

Apr.

1.39 

1.39

1.53

1.33

1.27

1.33

1.35

1.27

al.5

al.5

al.3

al.3

al.5

al.5

a2.2

a2.0

a2.6

a2.5

a2.5

*a2.5

2.6

2.6 

2.55 

2.25

2.05

1.95

2.55

2.15 

2.4

5.5

----- 

56.92

1.90

2.94

175

May

4.3 

±.5

3.4

3.4

5.0

3.0

2.95

2.95

2.95

2.95

2.85

2.85

2.8 2-78

2.8

2.95

3.15

3.25

3.15

3.15

3.15

3.1 

3.0 

2.95

3.15

3.25

3.5

3.25 

3.15

3.15

3.15

97.95

3.16

4.89

301

June

3.1 

5.1

5.0

3.1

3.0

2.95

2.95

3.0

2.95

5.0

2.8

2.0

2.4

2.85

2.8

2.8

2.85

2.95

2.95

2.8

3.1

3.1 fci*

3.0

3.0

3.0

2.95 

3.0

2.95

- 

87.70

2.92

4.52

269

Calendar year 1954. Max - Mln - Mean(ragd) - Mean(ofs) - Ao-ft -

Fiscal year 1954-55: Max 6.2 Min 0.06 Mean(ragd) 2.27 Mean(cfs) 3.51 Ac-ft 2,540

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for nearby streams.
ISLAND OF OAHU 

Maunawlli ditch near Waimanalo Continued

Discharge, in million gallons a day, fiscal year July 1955 to June

~nmrr~ rr~:TTT~ i ~r~nir~ i rr~

61

1956

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

Mean:

mgd

cfa

Ac-ft

July

2.95

2.95

2.85

2.95 

2.85

2.7

2.6

2.6

2.55

2.55

2.6 

2.6

2.6

2.6

2.55

2.55

2.5

2.5

2.5 

2.5

2.55

2.5

2.5

2.5

2.5

2.5

2.5 

2.5

2.4

FT4 

2.5

80.40

2.59

4.01

247

Aug.

2.4

2.8

p *c tiF

2.5

2.35

2.4

2.4

2.4

2.55

2.55 

2.55

2.55

2.8

2.55

2.5

2.5

*2.7

2.85 

5.6

3.15

2.95

2.8

2.7

2.6

2.6

2.55 

2.55

2.55

2.55 

2.5

81.40

2.63

4.07

250

Sept.

2.55

2.55

2.5

2.5 

2.4

2.4

2.4

2.85

3.0

2.95

3.0 

3.0

2.95

2.95

2.85

2.8

2.8

2.8

2.95 

2.95

3.25

 S73 3.6

3.1

2.9

2.7

2.7 

2.5

2.5

2.4

84.10

2.80

4.33

258

Oct.

2.4

2.4

2.4

2.6 

2.3

2.2

2.2

2.2

2.2

2.2

2^8 

2.5

2.3

*2.2

2.25

2.5

2.4

2.4

2.4 

*2.4

2.4

2.35

2.4

2.35

2.35

2.25

2.25 

2.25

2.25

2.25 

2.25

72.60

2.34

3.62

223

Nov.

2.25

2.25

li?.

2.2 

2.2

2.2

2.2

2.2

2.4

3.1

2.9 

2.5

2.3

2.6

2.4

2.5

2.6

3.2

275 

2.4

2.5

2.6

2.5

2.4

2.3

2.4

2.7 

2.4

2.4

2.3

73.60

2.45

3.79

226

Dec.

2.3

2.5

2.4

2.3 

2.3

2.2

*2.2

2.25

2.2S

2.35

2.35 

2.25

2.2

2.2

2.2

2.2

2.2

2.2

3.4 

1.68

.73

.21

.12

.09

.06

.03

0

0

0

0 

0

47.17

1.52

2.35

145

Jan.

0

0

0

0 

0

0

0

0

0

0

0 

.21

.06

0

0

0

0

0

0 

0

0

0

.64

1.91

l±i

*2.5

2.25 

2.15

2.2

3.1 

2.4

20.52

0.662

1.02

63

Feb.

2.35

2.4

272

2.15 

2.35

2.35

2.35

2.35

2.35

1.49

.15 

.18

.15

.15

.15

.15

.15

.15

.15 

.15

.12

712

1.40

2.2

2.15

2.05

2,05 

2.0

2.15

38.11

1.31

2.03

117

Mar.

2.05

1.93

1.93

1.86 

1.86

2.65

3.0

3.05

'370 3.3

3.1 

2.95

2.85

2.8

2.8

2.8

2.7

2.6

2.55 

2.4

2.5

2.55

2.7

2.5

2.55

2.35

2.0 

2.0

2.05 2 25

2^4

78.03

2.52

3.90

239

Apr.

2.5

2.7

2.85

2.7 

2.5

3.0

2.5

2.4

2.3

2.3

2.2 

2.1

2.1

2.1

2.2

2.4

2.8

2.6

2.7 

3.4

3.6

.70

.24

.14

.04

0

0 

0

0

0

55.07

1.84

2.85

169

May

0

0

0

0 

.5

1.5

*1.6

1.56

1.50

1.94

2.7 

2.6

2.55

2.55

2.55

2.55

2.55

2.8

2.7 

2.7

2.8

2.6

2.6

2.55

2.7

2.95

3.0 

370

2.85 

2.7

65.20

2.10

3.25

200

June

2.55

2.5

2.6

2.5 

2.55

2.5

2.55

2.4

2.4

2.4

2.4 

2.4

2.3

2.85 *27T~

2.7

2.6

2.7

3.7 

2.05

2.0

2.7

2.7

2.6

2.55

2.55

2755

2.5 

2 5

74.83

2.49

3.85

230

Calendar year 1955. Max 6.2 Min 0 Meanfmgd) 2.23 Mean(cfs) 3.45 Ac-ft 2,500 

Fiscal year 1955-56 : Max 3.6 Min 0 Mean(mgd) 2.11 Mean(cfs) 3.26 Ac-ft 2,370

* Discharge measurement made on this day.

Note. No gage-height record Sept. 23 to Oct. 14, Nov. 3 to Dec. 7, Apr. 4 to May 7j discharge 

stlmated on basis of recorded range in stage and records for nearby streams.
ISLAND OF OAHU

Hailcu Stream near Heeia

Location. Lat 21°24'40", long 157°49'40", on left bank 1.7 miles west of Kaneohe Post 

Office and 1.8 miles southwest of Heeia.

Drainage area. 1.0 sq mi.

Records available. January 1914 to October 1919, July 1939 to June 1956.

Gage. Water-stage recorder. Datum of gage is 271.9 ft above mean sea level (levels by 

 city and county of Honolulu). Prior to Apr. 28, 1914, staff gage and Apr. 29, 1914, 

to Oct. 25, 1919, water-stage recorder, at same site at different datum.

Extremes. Maximum discharge during year, 395 mgd (611 cfs) Dec. 20 (gage height, 3.82 ft), 

from rating curve extended above 21 mgd as explained below; minimum, 0.23 mgd

'1914-19, 1939-56: Maximum discharge, 1,150 mgd (1,780 cfs) Mar. 26, 1951 (gage

height, 5.39 ft), from rating curve extended above 21 mgd by test on model of station

site; minimum, 0.17 mgd (0.26 cfs) Oct. 25, 1946.

Remarks.--Records fair. Suburban Water System diverts ground water from tunnel in drainage area.

Revisions (fiscal years). WSP 935: 1940.

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

0.9

1.0

1.1

1.2

1.3 

1.5

0.21

.53

1.04

1.68

2.5

4.8

1.6

1.7

1.8

1.9

2.0 

2.3

6.6

8.4

10.8

14.5

21

54

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cfs

Ac-ft

July

0.43

.46

.43

.43

.43

.39

.43

.43

.89

.89

.89

.68 

.43

.39

.43

.43

.43

.43

.39

.39

.50

.35

.35

.39

.39

.39

.43

1.63

1.42

1.17

1.04

18.16

0.586

0.907

56

Aug.

0.99

2.1

1.62

.78

.63

.53

753

.53

.53

.58

.53

.53 

.53

1.42

.73

.58

.53

2.95

6.1

7.0

1.84

1.42

1.10

.78

.78

.78

.78

.78

.78

7fl

. to

40.32

1.30

2.01

124

Sept.

0.89

. 78

!78

.84

.78

.78

.73

.73

.68

.53

.53

.50 

.46

.71

.79

.43

.43

.46

.46

.43

.46

.53

.53

.53

.50

.46

.46

.46

.46

.46

17.57

0.586

0.907

54

Oct.

0.46

TiT

.46

.50

.50

.50

.46

.46

.46

.46

.50

.58 

.89

.89

.89

.94

.84

*.89

.89

.89

.89

.89

.89

.89

1.04

.94

.94

.94

.94

. 94

23.11

0.745

1.15

71

Nov.

0.89

.89

.84

.89

.89

.89

.89

.89

1.97

T7T7

1.30

1.10 

.99

.99

.99

.99

1.04

1.60

1.44

1.30

1.17

1.17

1.10

1.10

1.04

1.10

1.23

1.17

.84

.53

32.40

1.08

1.67

99

Dec.

0.53

.53

.50

.46

746

.46

.57

.89

.89

.99

1.10

.99 

.94

.94

.94

.94

.94

.99

25

52

*34.5

5.2

2.9

2.35

2.0

1.84

1.68

1.55

1.49

1.49

2 35

148.41

4.79

7.41

455

Jan.

1.93

1.68

1.55

1.49

1.56

1.36

1.36

1.36

1.36

1.36

1.36

itf

1.55

1.36

1.79

1.42

1.36

1.36

1.36

1.36

1.36

1.36

1.42

6.7

2.35

1.68

1.97

2.75

7.6

3.45

69.17

2.23

3.45

212

, Feb.

2.15

2.5

*2.35

2.0

2.45

3.7

5.6

2.5

2.1

2.15

2.0

4.7 

2.9

2.0

1.84

1.76

2.0

2.1

1.93

1.68

1.68

1.68

1.62

2.15

13.2

1.84

1.42

1.17 TTTf

76.34

2.63

4.07

234

Mar.

1.65

1.42

1.23

1.10

1.10

1.04

1.04

1.04

1.23

1.10

1.04

1.04 

.99

.99

.94

.94

.89

.89

.94

.89

.84

.84

.94

.89

.89

.84

.89

.89

2.75

2.7

4.2

38.17

1.23

1.90

117

Apr.

2.3

1.25

1.14

.96

.99

1.31

1.04

.99

.94

.98

.94

.89 

-t78

.89

.97

.78

.87

.78

.84

4.6

13.9

1.86

1.36

1.03

1.03

2.5

1.13

1.00

.98

1.16

50.19

1.67

2.58

154

May

0.94

1.35

1.36

1.30

1.19

1.26

9.8

1.78

1.66

1.49

1.23

^78 

.94

.93

.96

.89

.81

.89

.89

.80

.86

1.09

2.05

1.13

.84

1.00

6.9

2.65

1.52

1.23

1.17

51.69

1.67

2.58

159

June

1.10

1.04

1793

1.42

1.36

1.42

1.93

1.62

1.45

1.36

1.42

1.55 

*1.73

1.49

1.36

1.34

1.30

1.30

1.35

1.23

1.24

1.36

1.40

1.30

1.15

1.23

1.17

1.10

1.26

1.17

41.08

1.37

2.12

126

Calendar year 1955: Max 52 Mln 0.35 Mean(mgd) 1.78 Mean(cfs) 2.75 Ac-ft 1,990

Fiscal year 1955-56: Max 52 Mln 0.35 Mean(mgd) 1.66 Mean(cfs) 2.57 Ac-ft 1,860

.). Aug. 20 (2 a.m.) 115 mgd (178 cfs). 2.73 ft; Dec. 20 (4 a.m.)

; Feb. 12 (7:30 p.m.) 129 mgd (200 cfs), 2.86 ft; Feb. 25 (6:30 a.m.)

) May 7 (5 a.m.) 115 mgd (178 cfa), 2.74 ft} May 27 (7:30 p.m.) 108 mgd

Peak discharge (base, loo mgd) 

395 mgd (611 cfs}, 3.82 ft; 

207 mgd (320 cfs), 3.27 ft; May 

167 cfs), 2.70 ft

* Discharge measurement made on this day.
ISLAND OP OAHU 63

lolekaa Stream mauka near Heeia

Location. Lat 21°25'15", long 157°49'50", on left bank 0.7 mile upstream from confluence 

witlTHaiku Stream, 1.5 miles southwest of Heela, and 1.8 miles west of Kaneohe Post 

Office.

Datum of gage Is 320 ft above mean sea

Drainage area. 0.3 sq ml.

Records available. March 1940 to June 1956.

Gage. Water-stage recorder and concrete control, 

level (transit levels by U. S. Navy).

Average discharge. 15 years (1940-42, 1943-56), 0.374 mgd (0.579 cfs).

Extremes . Maximum discharge during year, 16.3 mgd (25.2 cfs) Dec. 19 (gage height, 

TTBlTft), from rating curve extended above 4.0 mgd as explained below; minimum, 

0.31 mgd (0.48 cfs) Nov. 16, 17.

1940-56: Maximum discharge, 69 mgd (107 cfs) Oct. 22, 1941 (gage height, 2.40 ft), 

from rating curve extended above 4.0 mgd by rating for Columbus-type control and test 

on model of station site; minimum daily, 0.10 mgd (0.16 cfs) Oct. 31 to Nov. 9, 

Nov. 24, 27, 1946.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Revisions (fiscal years).--WSP 935: 1940.

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

0.5 

.6 

.7

0.21 

.35 

.55 

.90

0.9

1.0

1.1

1.2

1.55 

2.5 

3.8 

5.5

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cfs

Ac-ft

July

0.41 

.41

.41

.41

.41

.39

.59

.59

.39

.39

.39

.59

.59

.59

.59

.59

.59

.39

.39

.59

.41

.59

.39

.39

.39

.59

.59

.53

741

.57

757

12.58

0.399

0.617

38

Aug.

0.35 

.S3

.45

.59

.57

.57

.57

.39

.39

.39

.41

.41

.41

.70

.41

.39

.41

.99

1.55

1.64

.62

.49

.45

*.42

.41

.41

.41

.41

.41

.41

59

16.45

0.550

0.820

50

Sept.

0.41

.41

.41

.39

.39

.59

.41

.59

.59

.39

.37

.37

.37

.37

.55

.55

.39

.37

.41

.41

.35

.55

.35

.35

.55

.55

.55

.57

11.54

0.578

0.585

35

Oct.

0.37 

.35

.35

.35

.35

.35

.55

.55

.55

.35

.35

.35

.55

.55

.55

.57

.35

*.34

.52

.52

.52

.52

.35

.34

.58

.34

.34

.54

.55

35

.34

10.74

0.546

0.555

33

Nov.

0.34 

.34

.34

.34

.54

.34

.32

.34

.78

743.

.41

.54

.54

.34

.32

.31

.34

.42

.42

.37

.37

.35

.37

.55

.34

.35

.41

.35

.32

32

11.05

0.568

0.569

54

Dec.

0.32

!32

.32

.32

.32

*.32

.32

.32

.35

.39

.34

.32

.32

.32

.32

.32

.32

3.25

5.0

5.15

.98

.55

.47

.45

.41

.39

.37

.57

.41

.67

22.55

0.720

1.11

69

Jan.

0.47 

.43

.39

.57

.57

.37

.35

735

.35

.35

.35

1.65

.72

.49

.41

.50

a. 57

a. 56

a. 55

a. 55

a. 55

a. 55

a. 55

a. 55

a. 60

a. 50

.41

.58

.51

1 , 68

. 76

15.77

0.509

0.788

48

Feb.

0.51 

.71

.52

.45

.79

1.15

1 .48

.62

.49

.49

.45

.85

.59

.49

.47

.45

.52

.52

.45

.45

.41

.59

.39

.46

.94

.39

.39

.57

719

16.52

0.570

O.S82

51

Mar.

0.58 

.41

.39

.37

.37

.37

.57

.35

.38

.35

.35

.34

.54

.54

.54

.54

.54

.54

.54

.37

.34

.35

.42

.35

.34

.53

.34

.34

1-21

13.05

0.421

0.651

40

Apr.

0.71 

.49

.43

.41

.39

.47

.39

.39

.39

.39

.39

.39

.37

.37

.37

.37

.46

.35

735

1.50

~62.8

.51

.45

.41

.54

.41

.39

.37 

.45

16.47

0.549

0.849

51

May

~T3T 0.37 

*.39

.39

.39

.42

2.2

.62

.47

.43

.41

.41

.59

.41

.41

.59

.59

.59

.59

.59

.59

.49

.65

.41

.41

.39

.79

.60

.50 

.43

15.50

0.500

0.774

48

June

0.41 

.41

.60

.41

.41

.41

.50

.41

.41

.41

.41

.55

*.52

.41

.41

..39

.39

.39

.39

.59

.41

.47

.41

.41

.39

.39

.39

.39

.39 

.39

12.65

0.422

0.655

59

Calendar year 1955; Max 5.0 Mln 0.2S Mean(mgd) 0.486 Mean(cfs) 0.752 Ac-ft 544 

Fiscal year 1955-56: Max 5.0 Mln 0.31 Mean(mgd) 0.476 Mean(cfs) 0.736 Ac-ft 536

Peak discharge (base, 15 mgd). Dec. 19 (10:30 p.m.) 16.3 mgd (25.2 cfs), 1.58 ft.

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for nearby streams.
64 ISLAND OF OAHU

Kahaluu Stream near Heeia

Location. --Lat 21° 26 '20", long 157° 51 '05", on left bank 40 ft upstream from intake of 

LlDby ditch, 0.5 mile upstream from forest-reserve boundary, and 3.0 miles northwest 

of Heeia.

Drainage area. 0.4 sq mi.

Records available. October 1935 to June 1956.

Gage. Water-stage recorder and Parshall flume. Datum of gage is 357.52 ft above mean 

sea level (levels by Wright, Harvey & Wright).

Extremes . Maximum discharge during year, 59 mgd (91 cfs) Dec. 20 (gage height, 2.90 ft), 

from rating curve extended above 9 mgd by test on model of station site; minimum 

daily, 0.26 mgd (0.40 cfs) June 26-30.

1935-56: Maximum discharge, 290 mgd (449 cfs) Sept. 27, 1937 (gage height, 

5.47 ft, control then in use), from rating curve computed from 11 to 240 mgd by 

Parshall flume formula and extended above; minimum daily, 0.07 mgd (0.11 cfs) Mar. 19, 

1947.

Remarks . Records good except those for periods of fragmentary or no gage-height record, 

which are fair. Suburban Water System has diverted ground water from tunnel in drainage area since 1948. Continuous records of rainfall are obtained at station.

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

O.I 

.2

.3 

.4

0.13 

.43

0.5

.7

1.0

3.9 

7.4

Discharge, In million gallons a day, fiscal year July 1955 to June 1955

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

Mean:

mgd

efs

Ac-ft

July

0.45

.39

.59

.59

.43

.43

.39

.35

755

.55

.55 

.35

.39

.39

.43

.43

.43

.39

.39

.39

.55

.39

.39

.39 

.59

.43

.43

.47

747

.43

.47

12.45

0.402

0.622

58

Aug.

0.45

T759

.67

.47

.45

.43

.43

.43

.45

.48

.47 

.45

.47

1.31

.59

.51

.47

1.01

2.35

2755

.59

.47

*.45

.45 

.47

.47

.47

.47

' .47

.47

.47

20.66

O.666

1.O5

65

Sept.

O.55

.47

.47

.51

.47

.47

.47

.47

.47

.47

.47 

.47

^45

.45

.45

.43

.43

.47

.43

.43

.43

.47

.47

.47 

.47

.45

.45

.45

.45

.45

13.70

0.457

0.707

42

Oct.

0.45

45

!47

.47

.47

.47

.47

.47

.47

.47 

.47

.47

.47

.47

.51

*.51

.51

.51

.51

.47

.47

.55

Tff

.55

.51

.55

.55

.51

.51

15.33

0.495

O.766

47

Nov.

0.51

.51

747

.47

.47

.47

.51

~T75 1.49

.75 

.59

.51

.59

.59

.55

.59

.63

.59

.59

.59

.59

.55

.55 

.55

.59

.94

.65

.59

CQ

. oy

18.27

0.6O9

O.942

56

Dec.

0.59

.59

.55

75S

.55

.55

.55

*.59

.63

-.63

.63 

.65

.59

.59

.59

.59

.59

.59

4.5

6.5

5.8

.71

.65

.63 

.63

.65

.65

.59

.59

4 63

.80

51.65

1.02

1.58

97

Jan.

0.95

.67

.65

.63

.63

.63

.63

.63

.65

.65

.65 

"T6T 2.55

.63

.59

.67

.63

.59

.59

.59

.59

.59

.59

1.18 

1.94

1.59

.67

.67

.67

!67

24.79

0.8OO

1.24

76

Feb.

0.59

.98

.65

.59

.65

1.42

1.36

.67

.59

.65

.59 

1.22

.67

^55

.55

.55

.70

.55

.55

.55

.55

.55

.55

.59 

1^49

.55

.55

.55

.55

20. 50

0.707

1.09

65

Mar.

O.62

.55

75s

.55

.55

.55

.55

.55

.55

.55

.55 

.55

.55

.55

.55

.55

.55

.55

.55

.55

.55

.55

.55

.55 

.55

.55

.55

.59

1.77

. 83

19.04

0.614

0.950

58

Apr.

0.85

.55

.51

.47

.47

.51

.47

.47

.47

.47

.47 

.47

.47

.47

.47

.47

.55

.47

.47

2.5

2.55

.55

.47

.47 

.45

.51

.43

.45

.45

.45

18.73

0.624

0.965

57

May

O.45

.45

*.45

.43

.45

.43

f2.45

1755

a. 45

a. 59

ti

.29

.52

.52

.29

.29

.29

.29

.29

.29

.39

.52

.35 

.32

.32

.45

.59

.55 

.55

.55

15.44

O.454

0.671

41

June

0.32

.29

.46

.52

.52

.52

.45

.59

.32

.32

.52 

.55

.52

.29

.29

.29

.29

.29

.29

.29

.29

.52

.52

.32 

.29

^26

.26

.26

.26

.26

9.37

0.312

0.485

29

Calendar year 1955: Max 6.5 Min O.15 Mean(mgd) 0.537 Mean(cfs) 0.831 Ac-ft 600

Fiscal year 1955-56: Max 6.5 Min 0.26 Mean(mgd) O.595 Mean(efs) 0.921 Ac-ft 667

Peak discharge (base, 3O mgd). Dee. 2O (12 p.m.) 59 mgd (91 cfs), 2.90 ft; Jan. 26 (7:5O a.m.)

34 mgd (55 cfs), 2.2O ft.

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Walhee Stream.

f Fragmentary gage-height record; discharge computed from partly estimated gage-height record.
ISLAND OF OAHU 65

Waihee Stream near Heeia

Location.--Lat 21°27'05",'long 157°31'35", on left bank 70 ft upstream from intake of Kihe 

ditch, 120 ft downstream from forest-reserve boundary, 3.5 miles (corrected) northwest 

of Heeia, and 4.4 miles northwest of Kaneohe.

Drainage area. 1.1 sq mi.

Records available.--December 1935 to June 1956.

Gage. Water-stage recorder and Parshall flume. Altitude of gage is 193 ft (from topographic map).

Average discharge. 20 years (1936-56), 6.44 mgd (9.96 cfs).

Extremes. Maximum discharge during year, 186 mgd (288 cfs) Dec. 20 (gage height, 4.57 ft); 

minimum, 2.75 mgd (4.25 cfs) Sept. 6, Oct. 31 to Nov. 2.

1935-56: Maximum discharge, 465 mgd (719 cfs) Feb. 28, 1939 (gage height, 5.47 ft, 

control then in use), from rating curve computed from 20 to 230 mgd by Parshall flume 

formula and extended above; minimum, that of Sept. 6, Oct. 31 to Nov. 2, 1955.

Remarks. Records good. A 2-inch pipeline diverts water above station for domestic use.

Rating tables, fiscal year 1955-56 (gage height, in feet, and discharge, 

in million gallons a day)

July 1 to Aug. 19

1.0 7.6

1.2 11.1

1.5 17.7

Aug. 2O to June 30

0.5 1.85

.6 2.85

.7 4.1

.9 7.1

1.2 

1.5 

2.0

12.8

20

36

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

Day

1

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean:

mgc

Cf£

Ac-ft

July

14.0

IITo

13.8

13.8

13.8

13.8

13.5

13.5

13.3

13.3

13.3

13.1

13.1

13.1

13.1

13.1

12.9

12.9

12.9

10.7

9.5

9.8

1O.O

10.2

10.2

10.2 

10.2

10.4

1O.6

10.4

10. 6

377.1

12.2

18.9

1,160

Aug.

10. Z

14.6

14.3

14.0

13.3

13.1

13.1

12.9

12.7

12.7

12.7

12.5

12.5

14.8

10.6

9.0

9.1

*1O.O

14.5

21

12.2

11.8

11.5

11.3

11.1

10.9

11.1

11.3

11.3

6.6

2_._95

369.65

11.9

18.4

1,130

Sept.

3.' 15

8.3

13.3

12.6

12.0

6.4

3TT~ 2.85

3.15

2.85

2.95

3.1

3.1

4.7

2.95

3.1

3.1

3.1

3.2

3.2

3.35

3.45

3.35

3.35

3.35

3.2 

3.35

3.35

3.45

3.45

133.85

4.46

6.90

411

Oct.

3.6

3.6

3.45

3.6

3.6

3.6

3.6

3.6

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.85

*3.85

3.85

3.85

3.85

3.7

3.85

4.1

4.1

10.8

16.3 

16.3

15.1

14.6

14.4

185.95

6.00

9.28

571

Nov.

2.75

2.85

2.85

2.95

3.1

3.1

.3.1

3.1

4.0

4.3

4.4

3.7

3.6

4.4

3.7

3.45

3.7 54

4T

3.85

3.85

4.4

4.2

4.1

3.85

3.95 

4.5

4.1

3.85

3. 85

113.05

3.77

5.83

347

Dec.

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

*3.85

3.7

3.7

3.6

376

3.6

3.6

3.6

3.6

3.6

18.7

33

24

7.9

6.1

5.7

5.1

4.8 

4.5

4.4

4.4

*4.5

5.2

194.35

6.27

9.70

596

Jan.

7.3

5.8

5.1

4.9

4.8

4.6

4.5

4.5

4.5

4.5

4.5

ILJL

6.8

4.9

4.8

5.7

4.6

4.5

4.4

TTf

4.4

4.4

4.4

8.2

15.4

13.7 

6.O

7.6

6.8

7.2

6.1

196.4

6.34

9.81

603

Feb.

5.5

7.0

5.7

5^4

5.7

9.6

-T79 10.9

6.4

6.6

6.3

9.1

6.6

6.1

6.1

6.1

7.7

6.8

6.4

6.1

6.1

6.0

6.O

6.4

8.4

6.0

5.7

5.5

6.4

193.5

6.67

10.3

594

Mar.

6.4

6.1

5.8

5.8

5.8

5.8

5.8

5.8

6.0

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

6.0

5.8 

6.3

6.0

8.0

7.8 

9.1

189.3

6.11

9.45

581

Apr.

S.7

6.9

6.4

*6.4

6.3

6.3

6.1

6.1

6.1

6.1

6.0

6.0

6.0

6.0

6.O

6.0

6.3

6.0

6.0

1O.6

"679 16.0

5.7

5.5

5.5

5.8 

5.5

5.5

5.4

57T

197.6

6.59

10.2

606

May

5.2

*5.3

5.8

5.7

5.7

5.8

12 .O

58

5.4

5.5

5.7

5.4

5.2

5.2

5.2

5 1

57T

5.4

5.2

5.1

5.2

5.5

5.8

5.2

5.1

5.1 

6.1

6.5

5.8

5.5

6.6

177.2

5.72

8.85

544

June

6.1

5.7

6.6

6.1

5.8

5.8

7.3

6.1

5.7

5.8

6.3

6.8

6.8

*6.9

6.9

6.9

7.1

6.9

6.9

6.9

7.1

7.1

TIT e'.9

7.1 

7.1

6.9

6.9

6.9

199.9

6.66

10.3

613

Calendar year 1955. Max 43 Mln 2.75 Meanfmgd) 1O.7 Mean(cfs) 16.6 Ac-ft 12,000

Fiscal year 1955-56: Max 33 Mln 2.75 Meanfmgd) 6.91 Mean(cfs) 10.7 Ac-ft 7,76O

Peak discharge (base, 9O mgd). Dec. 2O (12 p.m.) 186 mgd (288 cfs), 4.57 ftj Jan. 12 (3 p.m.) 93 

(144 cfs), 3.26 ft; Jan. 24 (12 p.m.) Ill mgd (172 cfs), 3.57 ft.

* Discharge measurement made on this day.
66 ISLAND OP OAHU

Waiahole tunnel at Waianu, near Waiahole

Location. Lat 21°29'05" ) long 157°53'15", on left bank in Waiahole tunnel at intake 

No. 29, 2.1 miles southwest of Waiahole.

Records available.--'-December 1950 to June 1956 in reports of Geological Survey. June 1916 

to November 1950 In files of Waiahole Water Co.

Gage. Water-stage recorder and Parshall flume.

Average discharge. 5 years (1951-56), 24.3 mgd (37.6 cfs).

Extremes. 1950-56: Maximum daily discharge, 74.0 mgd (114 cfs) July 28, 1954; minimum 

dally, 16.0 mgd (24.8 cfs) Jan. 24-29, 1952.

Remarks. Records good. Tunnel diverts water from headwaters of nearly all streams from 

Waiahole Valley to Kahana Valley for irrigation In central Oahu. Water may be diverted 

at various intakes above station.

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

Day

1

2

3

4

5

6 

7

8

9 

1O

11 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

31

Total

Mean:

mgd

cfs

Ac-ft

July

27.4

27.4

24.6

24.4

52.2

28.2 

25.8

24.4

24.4 

24.2

24.2 

24.0

24.0

24.0

24.2

25.8

24.0

23.7

23.5

2775

29.5

24.0

23.5

23.7

26.9

25.3

26.0

26.7

26.0

24. 6

24.9

788.5

25.4

3S.3

2,420

Aug.

23.7

*38.1

29.6

24.6

24.6

24. 0 

23.7

23.5

23.5 

26.9

25.3 

23.7

24.6

42.2

25.3

24.0

24.0

26.5

36.5

45.5

25.1

24.4

24.0

23.7

23.7

23.7

23.5

23.3

23.3

23 1 

237T

820.7

26.5

41.0

2,520

Sept.

23.1

29.7

23TT

26.2

24.4

23.3 

23.1

24.2

23.3 

23.1

22.9 

2£.9

22.9

22.6

22.6

22.6

22 .4

22TT

26.9

22.9

23.5

23.7

26.4

23.7

22.9

22.6

22.4

22.4

22.9

23 1

708.8

23.6

36.5

2,180

Oct.

22.4

23.3

22.4

23.1

23.1

22.4 

22.4

22.2 2172" 

22.4

25.3 

53"73

22.6

22.4

22.4

22.4

22.2

22.2

22.2

22.2

22.2

22.2

23.7

22.6

22.9

22.2

24.9

23.8

22.6

22.2

22.9

7O5.3

22.8

35.3

2,160

Nov.

22.4

22.2

22. 0

22.0

22.0

ffc*

21.8

30.2 

25.2

28.8 

23.7

22.6

29.5

23.5

23.1

27.4

26.7

24.2

23.1

23.5

24.9

24.6

24.9

23.1

26.2

24.2

24.2

23.1

23 3

726.0

24.2

37.4

2,230

Dec.

*23.3

22.6

22.4

22.4

22.2

22.2 

22.2

22.2

22.0 

22.0

22.0 

22.0

21.8

2TT8

21.8

21.8

21.8

21.8

27.6

59.7

40.2

31.9

24.0

26.0

24.0

22.9

22.6

22.4

27.5

27.6

35. 8

790.5

25.5

39.5

2,430

Jan.

25.8

23.5

23.3

23.5

23.3

23.1 

23.1

23.1

22.9 

22.9

22.9

41.4

25.6

24.0

23.5

26.4

23.7

23.3

23.3

23.3

23.1

23.1

23.1

24.1

30.2

36.4

26.2

28.2

35.0

27.4 

25, 6

794.3

25.6

39.6

2,440

Feb.

24.4

26.7

24.9

24.6

24.9

35.6 

34.2

25.6

24.6 

24.9

27.4 

29.6

26.7

26.7

25.3

42.7

40TT

29.7

26.2

25.6

25.3

25.1

25.3

32.1

36.5

27.4

29.2

26. 0

38.6

835.9

28.8

44.6

2,570

Mar.

33.1

27.2

25.8

25.6

25.3

25.8 

25.3

25.1

31.6 

25.6

26.5 

25.3

25.1

25.1

24.9

24.9

24.9

25.3

28.1

31.4

25.3

24.9

28.2

26.5

29.0

26.5

32.7

26.2

39.2

30.9 

32.7

854.0

27.5

42.5

2,620

Apr.

32.2

26.7

26. 0

25.8

25.6

27.8 

25.8

25.6

25.1

25.1

m25.1

25.1

25.6

26.9

35.9

25.6

26.0

55.4

51.6

29.0

26.7

25.8

26.5

31.0

25.8

25.6

25.3 

25.6

852.0

28.4

43.9

2,620

May

*25.1

257T

25.1

25.1

25.1

25.7 

40.5

39.3

26.7 

30.4

34.1 

27.6

32.6

29.7

29.4

26.2

26.0

26.0

26.0

25.6

25.6

26.9

36.7

28.3

30.2

31.2

30.7

31.6

37.6

34 " 9

913.6

29.5

45.6

2,800

June

28.8

27.8

33.0 2~8~7l

27.2

27.6 

30.9

27.4

m28.5 

29.1

29.1

28.6

26.9

26.7

30.0

29.3

29.3

26.7

27.8

32.4

32.6

27.6

26.9

28.0

28.1

26.9

28.4 

27.9

856.1

28.5

44.1

2,630

Calendar year 1955. Max 59.7 Min 21.8 Mean(mgd) 26.1 Mean(cfs) 40.4 Ac-ft 29,210

Fiscal year 1955-56: Max 59.7 Min 21.8 Mean(mgd) 26.4 Mean(cfs) 40.8 Ac-ft 29,600

* Discharge measurement made on this day.
cation. Lai 

take No. 31

Gage. WaterAverage discharge

ISLAND OP OAHU 67 

Waiahole. tunnel wasteway at intake 31, near Waiahole

21C 28'30", long 157°53'15", on left bank 150 ft below wasteway gates of inof Waiahole tunnel and 2.2 miles southwest of Waiahole.

Records availsible.--January 1951 to June 1956. 

tage recorder and Parshall flume.

.--5 years (1951-56), 0.216 mgd (0.334 cfs). 

tremes.--19 1-56: Maximum daily discharge, 38.4 mgd (59.4 cfs) Feb. 23, 1955; no flow

most of tine 

Remarks. Records fair. Station measures releases from Waiahole tunnel.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

rage 

cfs

Ac-ft

July

0

(J

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.01

0

0

0

0

0

0

0

0

0

0

0

0.01

0.0003 

0.0005

0.03

 1 f

.

16

-

0

0

0

0

0

0

0

0

0

0

.02

0

0

0

0

.02

1.49

0

0

0

0

0

0

0

0

0

0 

0

1.69

b. 055 

0.085

Calendar year 1

Fiscal year 195=

5.2

Sept.

0

0 

0

0

Oct.

0

0 

0

0

Nov.

0

0

0

0

0

0

0

0

o 

.03

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.03

0.001 

0.002

0.1

Dec.

0

0

0

0

0

0

0

0

0

0 .

0

0

0

0

0

0

0

0

.01

IS. 8

24.5

TTTo

5.3

0

0

0

0

0

0

0 

0

65.61

2.12 

3.28

201

Jan.

0

0

0

0

0

0

0

0

0

0

0

4.96

4T54

0

0

0

0

0

0

0

0

0

0

0

0

.60

0

0

0

0 

0

9.60

0.310 

0.480

29

Feb.

0

0

0

0

0

0

0

0

0

0

.07

.11

0

0

0

.02

.02

0

0

0

0

0

0

.26

.84

0

0

0

.02

1.34

0.046 

0.071

4.1

Mar.

0

0

0

0

0

0

0

0

.02

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Tf

.02

0.38

0.012 

0.019

1.2

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.01

0

0

.02

-J5

0

0

0

0

0

0

0

0 

0

0.08

0.003 

0.005

0.2

May

0

0 

0

0

June

0

0 

0

0

955: Max 38.4 Min 0 Mean(mgd) 0.847 Mean(cfs) 1.31 Ac-ft 948

-56s Max 24.5 Min 0 Mean(mgd) 0.215 Mean(cfs) 0.333 Ac-ft 241
68 ISLAND OF OAHU

Waiahole tunnel at north portal, near Waiahole

Location. Lat 21°28'15", long 157°53'30", on right bank in Waiahole tunnel at the boundary of Territorial and private lands, 2.6 miles southwest of Waiahole.

Records available. January 1951 to June 1956 in reports of Geological Survey. May 1916 

to December 1950 in files of Waiahole Water Co.

Sage ."Water-stage recorder and Parshall flume.

Average discharge. 5 years (1951-56), 26.1 mgd (40.4 cfs).

Extremes. 1951-56: Maximum daily discharge, 81.0 mgd (125 cfs) July 28, 1954; minimum 

daily, 7.0 mgd (10.8 cfs) Jan. 24, 25, 1951.

Remarks. Records good. Tunnel diverts water from headwaters of nearly all streams from 

Waiahole Valley to Kahana Valley for irrigation in central Oahu. Numerous intakes can 

divert water above station.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cfs

Ac-ft

July

29.8

30.1

27.5

27.3

33.2

32.1

28.4

27.5

27.0

26.8

26.8

26.8

26.8 

26.8 

26.6

28.2

26.6

26.6

26.3 

29.2

32.4

26.6

26.3

26.3

28.9

28.4

28.6

29.1

28.4

27 3 

27is

870.2

28.1

43.5

2,670

Aug.

26.3

*40.6

33.7

27.3

27.3

26.8

26.3

26.3

26.3

29.1

27.7

26.3

27.0 

46.2 

28.2

26.8

26.8

28.6

39.2 

59.6

27.0

27.0

27.0

26.8

26.8

26.6

26.6

26.3

26.3

26.3 

26. 1

919.2

29.7

46.0

2,820

Sept.

26.3

33.5

TTo

29.8

27.7

26.6

26.1

27.7

25.4

24.5

24.5

25.2

25.9 

25.6 

25.6

25.6

25.6

25.6

28.9 

25.4

26.6

27.0

29.2

26.8

25.9

25.6

25.4

25.4

25.9

26.1

796.4

26.5

41.0

2,440

Oct.

25.4

26.3

25.6

25.9

25.9

25.4

25.4

25.4

25.2

25.4

27.7

'267T

25.4 

25.2 

25.0

25.0

25.0

25.0

25.0 

24.7

24.7

24.7

26.6

25.2

25.9

25.0

27.2

25.6

25.6

24.7 

25.4

790.6

25.5

39.5

2,430

Nov.

25.2

24.7

24.7

24.7

25.0

25.0

24.7

24.7

33.4

TTZ

30.8

25.4

24^3 

31.0 

25.2

24.7

29.1

28.2

26.6 

24.5

£5.2

26.6

26.1

26.3

24.7

27.6

27.0

25.6

24.7

24. 7

787.8

26.3

40.7

2,420

Dec.

*24.5

23.8

23.8

23.6

23.6

23.4

24.3

24.7

24.5

24.5

24..S

24.5

24.5 

24.5 

24.3

24.3

24.3

24.3

33.3 

47.2

19.4

15.5

£0.1

27.5

25.0

24.3

24.1

23.8

28.5

23. 9 

37.4

790.9

25.5

39.5

£,430

Jan.

27.5

25

24.5

24.1

23.8

23.8

23.6

23.6

23.6

23.6

23.6

38.6

22.6 

24.5 

24.3

27.7

24.5

24.1

£3.8 

23.8

23.8

23.6

£3.6

24.8

31.6

37.7

26.8

28.2

36.4

26!s

811.4

26.2

40.5

2,490

Feb.

*25.2

28.0

26.3

25.6

26.1

37.6

36.1

26.8

25.9

27.3

28.4

31.0

28.6 

28.0 

26.6

43.2

43.2

31.5

27.7 

26.8

26.6

26.3

£6.3

3£.2

38.0

28.6

30.3

27.3

38.6

 

874.1

30.1

46.6

2,680

Mar.

35.4

28.6

£7.3

27.0

26.8

27.3

26.8

26.6

33.5

27.3

28.0

26.8

26.6 

26.3 

26.3

26.3

26.3

26.8

29.8 

32.8

27.0

£6.6

29.8

28.0

30.3

28.0

34.2

27.7

41.8

33.0 

34.4

903.4

£9.1

45.0

£,770

Apr.

34.1

*28.4

27.5

27.3

27.3

29.1

27.5

27.0

26.8

26.8

26.8

26.8

26.8

m28.4

39.9

27.5

27.7 

56.1

56.0

30.8

28.4

£7.5

£7.3

33.0

27.5

27.0

26.8 

27.0

907.0

30.2

46.7

£.780

May

26.8

27.3

27.3

27.3

27.3

27.9

41.4

39.3

28.0

31. £

34.5

28.6

33.2 

30.8 

30.1

27.5

27.3

£7.3

27.3 

26.8

26.8

28.6

37.0

29.3

30.8

32.0

32.5

32.6

38.5

29 . 8

36.4

951.5

30.7

47.5

2,9£0

June

33. £

28.6

34.3

29.6

£8.4

28.9

3£.2

28.9

28.2

28.9

£9.3

30.1

30.1 

29.6 

£8.4

28.0

30TT

31.0

30.1 

28.0

29.3

33.5

34.0

28.9

£8.2

28.8

29.3

£8.0

£9.0 

£3 . 9

891.4

29.7

46.0

£,740

Calendar year 1955: Max 59.6 Mln 10. 1 Mean(mgd) 27.5 Mean(ofs) 42.5 Ac-ft 30,770

Fiscal year 1955-56: Max 59.6 Mln 15.5 Mean(mgd) 28.1 Mean(cfs) 43.5 Ac-ft 31,590

Discharge measurement made on this day.
ISLAND OF OAHU 69

Waiahole Stream at altitude 250 ft, near Waiahole

Location. Lat 21°28'35", long 157°52'30", on left bank 1.5 miles southwest of Waiahole 

School and 2.7 miles northwest of Kahaluu.

Drainage area. 1.01 sq ml.

Records available . July 1955 to June 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage Is 250 ft (from topographic map).

Extremes. 1955-56: Maximum discharge during year, 172 mgd (266 cfs) Dec. 20 (gage 

 height, 3.05 ft); minimum dally, 1.80 mgd (2.79 cfs) Sept. 28, Nov. 3-8.

Remarks. Records fair except those for period of doubtful gage-height record, which are 

poor.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

rage

cfs

Ac-ft

July

2.7

2^7

2.7

2.8

2.8

2.7

2.7

2.7

2.7

2.7

2.8

2.8

2.7

2.7 

2.8

2.7

2.7

2.7

2.95

2.9

2.7

2.7

2.7

2.7

2.7

2.7

2.8 

2.9

2.7

2.8

85.15

2.75

4.25

261

Aug.

2.8

*4.5

3.8

2.9

2.7

2.7

2.55

2.7

2.7

2.7

2.55

2.55

2.55

4.5

3.05 

2.8

2.7

2.9

8.0

25.5

5.1

5.3

2.55

2.45

2.45

2.25

2.15

2.15 

2.05

2.05

2 . 35

114.00

5.68

5.69

550

Sept.

2.4

*2.45

2.45

2.55

2.35

2.25

2.55

2.7

5.55

5.9

3.9

3.05

2.15

2.25

2.15 

2.05

2.05

2.05

5.15

2.6

2.25

2.25

2.5

2.05

1.98

1.98

1.89

1.80 

T798

1 . 98

72.41

2.41

3.73

222

Oct.

1.98

1.98

1.98

2.05

- 1.98

1.98

1.98

1.98

1.98

2.2

2.45

2.05

2.05

2.05

2.05 

2.05

1.98

1.98

1.98

1.98

1.98

1.98

2.25

2.15

2.35

2.05

2.05

2.15 

2.05

1 . 98

63.68

2.05

3.17

195

Nov.

*1.89

1.89

1.80

1.80

1.80

1.80

1.80

1.80

5.7

475

4.0

4.0

5.6

4.0

4.0 

5.8

4.2

4.2

4.0

4.0

4.0

4.0

5.9

5.9

5.9

4.1

5.0

4.5 

4.2

4.2

106.08

5.54

5.48

526

Dec.

* .2

.2

.2

.2

.2

4.0

5.0

2.45

2.45

2.45

2.45

2.45

2.45

2.45

2.45 

2.45

2.55

2755

11.0

*59.5

21.5

10.6

5.4

5.0

4.6

4.5

4.4 

4.4

5.5

225.25

7.20

11.1

685

Jan.

7.3

5.8

*5.4

5.1

5.0

4.6

4.6

4.6

4.6

4.5

4.4

2975

1271

6.3 5 9

8.8

6.3

5.9

5.8

5.8

5.4

5.4

5.1

6.7

9.9

17.0

*5.7

4.9

5.6

5.5

218.4

7.05

10.9

670

Feb.

*4.6

5.1

4.8

4.6

4.8

9.7

976

5.6

5.1

6.7

6.2

8.2

6.0

5.1

6.2

7.2

5.7

5.0

4.8

4.6

4.6

4.5

4.5

5.5

4.4

4.4

H

161.2

5.56

8.60

495

Mar.

*5.0

5.1

4.8

4.6

*4.8

4.6

4.6

4.6

6.4

5.0

4.9

4.8

4.6

4.6

4.6 jus

4.6

4.6

4.8

4.6

4.6

4.6

4.6

4.6

4.5

4.6

4.6 

10.9

159.9

5.16

7.98

491

Apr.

6.7

*5.1

4.8

4.6

4.6

4.6

4.5

4.5

4.4

4.4

4.4

4.4

4.4

4.4

4.4

8.6

4.8

4.5

7.6

17.0

^79

4.8

4.5

4.5

6.1

4.6

4.5 

4.4

4.4

160.8

5.56

8.29

495

May

*4.4

4.2

4.2

4.0

4.0

4.4

5.7

4.5

4.2

4.2

4.0

4.0

4.0

4.0

4.0

4.0

4.2

4.2

4.0

4.0

5.8

T78

4.4

4.2

4.2

4.8

5.6 

4.5

4.2

155.5

4.37

6.76

416

June

*4.5

4.6

5.1

478

4.5

4.5

4.5

4.4

4.2

4.0

4.2

4.2

4.2

4.4

4.0

4.2

4.0

4.0

4.0

4.2

4.2

4.9

4.2

4.0

5.9

472

3.9 

3.9

5.9

127.6

4.25

6.58

592

Calendar year 1955; Max - Min - Mean(mgd) - Mean(cfs) - Ac-ft -

Fiscal year 1955-56: Max 44 Min 1.80 Mean(mgd) 4.45 Mean(cfs) 6.89 Ac-ft 5,000

* Discharge measurement made on this day.

Note. Doubtful gage-height record Nov. 10 to Dec. 1; discharge estimated on basis of doubtful 

gage-height record and records for nearby stations. No gage-height record July 1-7; discharge estimated on basis of records for nearby stations.
70 ISLAND OP OAHU

Punaluu ditch near Punaluu

Location. Lat 21"33'40", long 157°54'10", on right bank of ditch 800 ft downstream from 

intake, 1.7 miles southwest of highway bridge at Punaluu, and 3.3 miles southeast of 

Hauula Post Office.

Records available.--May 1953 to June 1956.

Gage. Water-stage recorder. Altitude of gage is 200 ft (from topographic map).

Extremes. 1953-56: Maximum daily discharge, 16.2 mgd (25.1 cfs) May 20, 26, Aug. 19, 

1955, Apr. 21, 1956; minimum daily, 0.02 mgd (0.03 cfs) Jan. 9, 14, 1955.

Remarks.--Records good. Ditch diverts water from Punaluu Stream for irrigation of sugarcane in the Punaluu district.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cfa

Ac-ft

July

M11.2

11.2

11.6

15.0

12.8

12.0

11.2

11.2

11.2

11.2

11.2 

11.2 

11.2

11.2

11.2

11.2

11.2

11.2

11.2

11.2

11.2

11.2

11.2

12.0

12.0

12.0

12.0

11.2 

12.0

357.8

11.5

17.8

1,100

Aug.

1

11.2 

12.6

12.8

11.2

12.0

12.0

11.2

11.2

11.2

11.2

11.2

11.2

12.0 

15.0 

12.8

11.2

11.2

11.2

-376 16.2

.20

.14

.10

.08

.07

.05

.04

.04

.04

.04 

.04

233 .p4

7.52

11.6

715

Sept.

0.04

1^27

1.27

1.22

1.01

.54

.11

2.6

4.0

3.75

3.55

3.65 

6.0 

7.2

7.1

7.1

7.2

7.4

7.2

7.5

8.5

5.8

3.35

3.35

3.25

3.25

3.25

3.35

3.35

117.76

3.93

6.08

361

Oct.

3.35

z'.zs

3.4

3.4

3.4

3.4

3.5

3.5

3.5

3.5

3.5

3.55 

3.4 

3.35

3.5

3.5

3.5

*3.55

3.55

3.55

3.55

3.65

4.7

5.1

5.0

5.6

57T

5.2

5.0 

5.0

120.55

3.89

6.02

370

Nov.

5.0 

5.0

5.1

5.1

5.1

5.2

5.2

6^6

5.4

3.75

4.3

4.0

3.9 

4.3 

4.0

3.9

4.0

4.0

3.9

3.8

3.8

3.9

3.9

4.0

3.8

4.1

3.9

3.8

3.75

3.8

130.30

4.34

6.71

400

Dec.

3.9 

3.75

3.75

3.65

3.65

3.65

3.65

*3.65

3.0

2.65

2.65

2.65

2.65 

2.65 

2.65

1.91

1.69

1.69

2.95

5.8

5.3

4.8

4.6

4.5

4.4

4.4

4.3

4.2

4.5

4(8 

2.7

111.09

3.58

5.54

341

Jan.

0.11 

.11

.10

.10

.08

.08

.08

.10

.10

.10

.18

.12

.10 

.14 

.12

.14

.14

1.18

2.95

2.95

2.95

2.95

2.85

3. 1

2.85

1.85

.12

.11

.11

.11 

.11

26.09

0.842

1.30

80

Feb.

0.11 

.11

.15

.18

.15

.14

.18

.18

.20

.23

.20

.14

.14 

.15 

.17

.18

.20

.17

.15

.15

.15

.14

.14

.14

.11

.11

.23

.54

751

 

5.35

0.184

0.285

16

Mar.

0.36 

^34

.34

.36

.36

.34

.36

.36

.41

.36

.34

.34

2.45 

3.5 

3.5

3.5

3.5

3.5

3.75

3.65

3.5

3.35

3.4

3.55

3.65

3.55

*3.65

3.55

3.65

3.65 

3.4

70.52

2.27

3.51

216

Apr.

fit

5.3

5.3

5.2

5.3

5.2

5.2

5.1

5.1

5.1

5.1

8.6 

10.5 

10.5

10.5

12.4

10.5

10.5

14.9

16.2

11.2

9.8

9.5

9.2

10.5

9.2

9.1

9.0

8.8

249.5

8.32

12.9

766

May

8.8 

*8.4

5.8

7.1

12.0

12.8

14.5

12.8

12.0

12.8

13.6

13.6

13.6 

1376

12.8

12.8

12.0

12.0

12.0

12.0

13.2

15.4

13.6

13.6

13.6

14.5

15.4

14.5

14.5 

14.5

393.2

12.7

19.6

1,210

June

13.6 

13.6

13.6

12.8

12.8

12.8

14.5

1278

12.8

12.8

12.8

12.8

12.0

1

*1276" 

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.8

12.8

12.0

12.0

12.0

12.8

12.0

12.0

12.0

376.1

12.5

19.3

1,150

Calendar year 1955: Max 16.2 Min 0.02 Mean(mgd) 5.93 Mean(cfs) 9.18 Ac-ft 6,640

Fiscal year 1955-56: Max 16.2 Mln 0.04 Mean(mgd) 5.99 Mean(cfs) 9.27 Ac-ft 6,720

Discharge measurement made on this day.
ISLAND OP OAHU 71

Punaluu Stream near Punaluu

Location. Lat 81°33'35", long 157°54'05", on left bank at diversion dam, 1.8 miles southwest of Punaluu and 3.5 miles southeast of Hauula.

Drainage area. 8.8 sq ml.

Records available. May 1953 to June 1956.

Gage. Water-stage recorder and masonry control. Altitude of gage Is 818 ft (from topographic map).

Extremes. Maximum discharge during year, 1,760 mgd (2,780 cfs) Aug. 80 (gage height, 

5.03 ft), from rating curve extended above 105 mgd by logarithmic plotting; minimum, 

0.63 mgd (0.98 cfs) July 83.

1953-56: Maximum discharge, that of Aug. 80, 1955; no flow at times.

Remarks. Records good except those for period of no gage-height record, which are poor. 

Records do not Include flow of Punaluu ditch.

Rating table, fiscal year 1955-56 (gage height, in feet, and 

discharge, in million gallons a day)

0.2 

.3

.4 

.6

0.69

1.53

2.7

5.9

10.5

1.0 

1.2 

1.5 

2.0

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Total

Mean:

mgd

Cf£

Ac-ft

July

1.43

1.85

1.43

1.43

7.4

25

2.7

1.74 

1.43

1.24

1.15

1.15

1.15

1.24

1.15

1.24

1.07 

.99

.99

1.24

1.33

.83

.98

1.31

2.25

1.59

1.95

1.74

1.15

2.15

73.06

2.36

3.65

224

Aug.

1.33

8.3

4.6

1.89

1.61

1.53

1.24

1.15 

1.14

1.33

1.46

1.07

2.55

23

3.6

2.45

2.2 

2.95

90

176

30

*23

19.4

17.8

16.5

15.9

15.2

14.6

13.8

13. 8

13.8

523. 2O

16.9

26.1

1,610

Sept.

13.4

13.4

11.7

12.1

11.7

11.7

11.7

13.8

ToTT

8.1

8.1

8.1

8.1

5.9

4.7

4.7

4.5 

4.5

S.O

4.5

4.6

7.1

7.1

9.1

8.6

8.3

8.1

8.3

8.6

8.3

253.9

8.46

13.1

779

Oct.

8.3

8.6

8.1

S.I

8.1

7.9

7.9

7.7 

7.7

8.0

8.6

8.1

9.3

8.6

7.9

8.1

7.7 

7.4

*7.4

*7.4

7.4

7.4

8.1

6.8

6.6

6.1

~874 16T6

7.7

6.8

249.4

8.05

12.5

765

Nov.

6.6

6.3

6.3

6.1

6.1

5.9

5.9

i.6 

*19.8

9.6

22.5

15.4

10.5

21.5

12.6

10.9

13.5 

12.3

11.7

10.0

10.3

10.6

10.9

11.7

9.8

26

14.2

12.1

10.9

12.4

347. 0

11.6

17.9

1,060

Dec.

12.9

10.5

9.8

9.5

9.3

9.1

8.8

*8.7 

9.1

9.3

9.3

9.1

8.8

8.8

8.8

8.6

176 

8.6

 19.4

*73

35.5

19.8

13.8

12.6

11.3

10.3

9.8

9.3

13.1

25. 5

140

561.0

18.1

28.0

1,720

Jan.

37

24

20. 5

19.1

17.2

15.9

14.6

14.6 

13.8

14.2

13.4

61

22

17.2

15.9

16.5

14.6 

13.0

3,0.5

10.5

1O.3

10.0

1576"

40

30.5

138

*33.5

27

28

23

ZO. 5

756.3

24.4

37.8

2,320

Feb.

18.4

25

19.7

19.1

17.2

35.5

23.5

19.1 

17.8

17.2

20

28.5

21.5

21

19.1

51

51 

36

24.5

22.5

19.7

19.1

18.4

26.5

34

22

20.5

17.8

43

734.6

25.3

39.1

2,250

Mar.

54

25.5

21

19.7

28

19.7

18.4

17.8 

39.5

19.1

19.6

16.5

13.8

12.6

12.6

12.1

M20

17.5

12.6

11.7

14.0

13.9

16.5

16.5

*19.2

14.6

20 

18. 3

CO . O

597.0

19.3

29.9

1,830

Apr.

29.5

16.5

13.8

13.4

13.0

14.0

11.7

11.3 

10.9

10.5

10.3

1O.O

6.8

4.9

4.9

4.7

137T

4.9

4.7

28

74

15.3

10.5

9.5

8.6

15.7

8.6

8.1

7.7 

7.4

402.3

13.4

20.7

1,230

May

7.2

*7.0

9.3

7.4

2.55

3.45

10. S

4.4

3.15

4.1

5.4

5.7

4.9

9.6

4.8

3.6

3.3

3.15

2.85

2.7

2.7

10.6

1O.2

4.9

5.2

4.6

14.3

1376

9.8 

6.6

194.35

6.2T

9.70

596

June

5.2

5.1

6.3

4.4

3.75

3.6

1O.2

4.0 

3.45

3.8

3.6

3.6

3.45

3.35

3.0

2.85

3.1 

3.3

a2.7

a2.3

a3.1

a7.0

a7.0

a4.O

a2.6

a2.4

a5.0

aZ.S

al.8 

32.0

118.75

3.96

6.13

364

Calendar year 1955s Max 292 Min 0.76 Mean(mgd) 13.3 Mean(cfs) 2O.6 Ac-ft 14,890

Fiscal l year year 1955-^6: igsS-Se: wax Max 176 176 Min Min O.76 O.76 Mean^mgd; Mean(mgd) 13.1 13.1 Mean(cls) Mean(cfs) 2U.3 20.3 Ac-rt Ac-ft 14, 14,750 '£>u

discharge (base, 500 mgd). Aug. 20 (12:3O a.m.) 1,760 mgd (2,720 cfs), 5.O3 ftj Dec. 31

> a.m.) 1,520 mgd (2,350 cfs), 4.70 ftj Jan. 26 (10 a.m.) 930 mgd (l,44O cfs), 3.85 ftj Apr. 21

3O p.m.) 73O mgd (1,130 cfs), 3.43 ft.

* Discharge meaaurement made on this day.

a No gage-height recordj discharge estimated on basis of records for nearby streams.
72 ISLAND OP OAHU

Discharge measurements at points other than gaging stations

Measurements of streamflow on the island of Oahu made at points other than regular 

gaging stations are given in the following table. Most of these measurements were made 

during periods of base flow when streamflow is primarily from ground-water storage. Measurements believed to have been made under base-flow conditions are identified by and asterisk (*) to the left of the discharge figure. These measurements when correlated with the 

simultaneous discharge of a nearby stream where continuous records are available will give 

a picture of the low-flow potentiality of stream. The column headed, "Measured previously" 

shows the fiscal years for which measurements were made at the same, or practically the 

same, site.

Determinations of peak flow at points other than regular gaging stations are given in 

a separate table on page 73.

Discharge measurements made at points other than gaging stations on the island Oahu during 

_________________________fiscal year July 1955 to June 1956____________________

Stream

Makaha

Stream.

Makaha

tunnel.

Makaha mauka

ditch.

Tunnel 19. .. .

Kanewai

Stream.

Right Branch

of West

Pork Kalalula Stream.

Tunnel 14. . . .

Right Branch

of West

Pork Kalalula Stream.

Left Branch

of West

Pork Kalalula

Stream.

Tunnel 15. . . .

West Pork

Kalalula

Stream.

East Pork

Kalalula

Stream.

Kalalula

Stream.

Do. .......

Kumaipo

Stream.

Do..... ...

Punanaula

Stream.

City and

county of

Honolulu

tunnel.

Puea mauka

ditch.

Tributary to

Farm land. . .

.... do ......

.... do ......

Kanewai

Stream.

....do.. ....

Honua Stream

West Pork

Kalalula

Stream.

Right Branch

of West

Fork Kalalula

Stream.

West Fork

Kalalula

Stream.

.... do ......

....do... ...

Kalalula

Stream.

....do.. ....

Honua

Stream.

....do.. ....

. ...do.... ..

....do......

....do......

....do......

....do......

Farm land . . .

Location

Lat 21°29'35", long 158°11'2O",

300 ft upstream from Makaha

(Glover) tunnel, near Waianae.

Lat 21°29'35", long 158°11'20", at

mouth in Makaha Valley, near

waianae.

Lat 21°29'20", long 158°11'40", at

4-foot Parshall flume about

2,000 ft below tunnel in Makaha

Valley, near Waianae.

Lat 21°29'25", long 158°08'35", at

weir 28, near Waianae.

Lat 21°29'25", long 158°08'40", at

weir 7, near Waianae.

Lat 21°29'15", long 158°O8'40",

above flume entrance, near

Waianae.

Lat 21°29'40", long 158°08'55", at

weir 25, above tunnel 14, near

Waianae.

Lat 21°29'40", long 158°08'55", at

weir 24, near waianae.

Lat 21°29'35", long 158°O8'55", at

weir 10, near Waianae.

Lat 21°29'35", long 158°O8'55", at

weir 9, below tunnel 11, near

Waianae .

Lat 21"29'30", long 158°O8'55", at

weir 13, near Waianae.

Lat 21°29'25", long 158°O8'55", at

weir 14, below tunnel 15, above

pipeline diversion, near

Waianae.

Lat 21°29'30", long 158°08'55", at

weir 30, near Waianae.

Lat 21°29'00", long 158°09'O5", at

weir 15, near Waianae.

Lat 21°28'55", long 158°09'20", at

weir 26, above flume outlet,

near Waianae.

Lat 21°28<40", long 158°09'15", at

weir 17, near Waianae.

Lat 21°29'15", long 158°09'3O", at

weir 11, below tunnel 16, near

Waianae .

Lat 21°28'55", long 158°09'30", at

weir 12, above diversion flume

to Hlu Stream, near Waianae.

Lat 21°29'05", long 158°09'40", at

weir 16, below tunnel 17, near

Waianae.

Lat 21°28'25", long 158°O9'20",

4O ft below tunnel portal,

near Waianae.

Lat 21°28'10", long 158°09'4O", at

2-foot Parshall flume below

powerplant, near Waianae.

Measured 

previously 

(fiscal 

years)

1947-51,

1953-55

1947-51,

1945-55

1947-51,

1953-55

1911,1923,

1925-27,

1947-51,

1953-55

1923,

1948-51,

1953-55

1947-51,

1953-55

1925-27,

1947-51,

1953-55

1947-51,

1953-55

1925-27,

1947-51,

1953-55

1925-27,

1947-55

1923,

1947-55

1948-55

1948-55

1948-55

1946-51,

1953-55

1926,

1948-55

1947-55

1926-27,

1948-51,

1953-55

1948-51,

1953-55

1947-51,

1953-55

Date

Mar. 6

Mar. 6

Mar. 6

Mar. 8

Mar. 8

Mar. 8

Mar. 7

Mar. 7

Mar. 7

Mar. 7

Mar. 7

Mar. 7

Mar. 7

Mar. 7

Mar. 8

Mar. 6

Mar. 8

Mar. 8

Mar. 8

Mar. 6

Mar. 6

Discharge

Million 

gallons 

a day

*1.03

*.851

.814

*.609

*.075

1.07

*.056

*.063

*.181

*.134

*.311

*.631

*.016

.252

*.033

*.063

*.229

.465

*.015

1.59

.907

Cubic feet 

per 

second

*1.60

*1.32

1.26

*.942

*.116

1.66

*.087

*.098

*.280

*.207

*.481

*.977

*.025

.390

*.051

*.098

*.354

.720

*.023

2.46

1.40

* Base flow.
ISLAND OF OAHU 

Discharge measurement at points other than gaging stations

73

Discharge measurements made at points other than gaging stations on the island of Oahu during 

fiscal year July 1955 to June 1956 Continued

Stream

Pearl Harbor

Springs at

Puukapu.

Left tributary of

Kahaluu

Stream.

North Fork

Walhee

Stream.

South Fork

Walhee

Stream.

Upper Right

Branch

Waihee

Stream.

Upper Left

Branch

Waihee

Stream.

Waihee

Stream.

Waihee

tunnel

flume.

Tributary to

Pearl Harbor

Kahaluu

Stream.

Waihee

Stream.

.... do ......

....do......

....do... ...

Pacific

Ocean.

Waihee

Stream.

Location

Lat 21°23'25", long 157 "58 "10",

1,000 ft west of old Puukapu

gaging-station site, near Pearl

City.

Lat 21°26'20", long 157°51'10",

first culvert below gaging

station, near Heela.

Lat 21°26'50", long 157°52'20", at

altitude 720 ft, near Heeia.

Lat 21°26'45", long 157°52'10", at

altitude 710 ft, about 75 ft

below falls, near Heeia.

Lat 21°26'55", long 157°52'0o", at

altitude 350 ft, 20 ft above

confluence with Left Branch,

near Heeia.

Lat 21°27'00° long 157"51'55", at

altitude 300 ft, near Heeia.

Lat 21°27'00", long 157°51'45", at

altitude 205 ft, 75 ft above

bridge, near Heeia.

Lat 21°26 r55", long 157 0 52'00",

near Heeia.

Measured 

previously 

(fiscal 

years)

1931-48t

1949,

1953-55

1955

1955

1955

1955

1955

1955

Date

Feb. 6

Apr. 12

May 18

June 21

Aug. 25

Oct. 17

Dec. 8

Feb. 3

Mar. 27

Sept. 20

Jan. 6

Apr. 9

May 17

Sept. 20

Jan. 6

Apr. 4

May 17

Sept. 20

Apr. 4

May 17

Sept. 20

Jan. 6

Apr. 4

May 17

Sept. 20

Jan. 6

Apr. 4

May 17

Sept. 27

Oct. 14

Dec. 30

Discharge

Million 

gallons 

a day

*2.60

*3.43

*3.64

*3.68

».011

*.031

*.074

*.376

*.321

*1.23

*.898

*1.21

*.98

*1.20

*1.06

*.937

*1.27

*0

*.429

*.45

*.023

*.130

*.287

*.20

*2.22

3.26

3.94

3.97

.597

.55

*.047

Cubic feet 

pelsecond

*4.02

*5.31

*5.63

*5.69

*.017

*.048

*.115

*.581

*.496

 1.91

*1.39

*1.87

 1.51

*1.85

*1.64

*1.45

 1.96

*0

*.663

*.69

*.036

*.201

*.444

*.31

*3.44

5.04

6.09

5.22

.924

.85

*.073

* Base flow.

t Period of record at former gaging station.

The following table contains determinations of peak discharge made at crest stage by 

indirect methods or by current meter or computed from rating curve at points other than 

regular gaging stations.

Determination of peak discharge at points other than gaging stations during 

________________fiscal year July 1955 to June 1956

Stream

Opaeula 

Stream.

Tributary to

Pacific 

Ocean.

Location

Lat 21°35'06", long 158°06'Q6", 

at crest-stage gaging 

station, J mile upstream 

from Helemano Stream and 

0.8 mile south of 

Haleiwa at Waialua.

Drainage 

area 

(sq mi)

5.9

Measured 

previously 

(fiscal 

years)

1955

Date

Feb. 25

Discharge

Million 

gallons 

a day

2,660

Cubic feet 

per

second

4,120
74 ISLAND OP MOLOKAI

Halawa Stream near Halawa

Location. Lat 21°09'30", long 156°46'00", on right bank 500 ft downstream from confluence of two main branches, 1.8 miles west of Halawa, and 6 miles northeast of Pukoo.

Drainage area. 4.5 sq mi.

Records available . August 1917 to July 1932, November 1937 to June 1956.

Gage. Water-stage recorder. Altitude of gage is 200 ft (from topographic map). Prior 

fo June 24, 1923, at site 250 ft upstream at different datum.

Average discharge. 32 years (1918-32, 1938-56), 19.0 mgd (29.4 cfs).

Extremes. Maximum discharge during year, 4,300 mgd (6,650 cfs) Dec. 20 (gage height, 

10.64" ft), from rating curve extended above 45 mgd as explained below; minimum, 

1.62 mgd (2.51 cfs) Dec. 19.

1917-32, 1937-56: Maximum discharge, 5,420 mgd (8,390 cfs) Dec. 3, 1950 (gage 

height, 11.55 ft), from rating curve extended above 45 mgd on basis of slope-area 

determination at gage height 6.7 ft; maximum gage height, 12.30 ft Apr. 2, 1948; minimum discharge, 0.80 mgd (1.24 cfs) Oct. 13-15, 19, 1917, Feb. 11, 1954.

Remarks. Records fair. A 2-inch pipeline diverts water about a quarter of a mile above 

station for domestic use of Halawa village.

Rating tables, fiscal year 1955-56 (gage height. In feet, and discharge, 

In million gallons a day)

July 1 to Nov. 10 Nov. 11 to June 30

0.9

1.0 1.1

1.2

1.3

1.5

2.55

3.35

5.7 

7.2

2.0 

2.5 

3.0 

3.5 

4.0

42

77

130

200

294

0.9

1.0

1.1

1.2

1.3

1.4 

1.6

1.2 

1.8

17.0

1.8 

2.5 

3.0 

3.5 

4.O 

4.5 

5.0

31.5

83

134

201

294

405

540

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cfs

Ao-ft

July

36

18.5

11.7

27.5

14.5

*15.0

32

10.2

8.2

7.2

6.4

TJ

13.2

29 

29

15.8

9.7

43

10.2

10.3

8.2

6.4

6.4

7.2

24.5

11.8

21

"20 132

14.7

26 .5

633.9

20.4

31.6

1,950

Aug.

1O.6

63

49

13.1

10.2

9.1

7.2

9.2

17.2

47

83

16.0

22.5

73 

14.9

11.3

25.5

27

30.5

40

11.2

9.1

18.2

10.2

10.2

9.1

8.2

7.2

7.2 

8.2

8*2

686.3

22.1

34.2

2,110

Sept.

10.6

30

16.6

28

33

10.

*7.

6.

5.

5.

5 .(

5 ,

4.

4. 

7.

8.

5 .

12.

7.2

5.0

8.7

19.0

9.4

6.6

5.0

4.4

3.9

4.4

16.2 9 5

305.2

10.2

15.8

937

Oct.

9.6

13.3

11.6

27.5

20

10.7

7.2

5.7

5.0

5.0

12.6

141 -6T

10.4 

8.2

7.2

6.4

5.7

5.7

5.0

4.4

4.4

5.0

10.4

6.4

5.0

18.9

6.4

6.4 

5.0

4.9

458.0

14.8

22.9

1,410

Calendar year 1955: Max 458 Mln

Nov.

5.7

7.2

5.0

4.6

6.1

3.9

3.35

3.35

183

288

*19.1

9.6 6.0'

25.5 

9.2

6.7

11.8

16.8

9.5

12.8

13.9

17.2

13.4

16.9

45

63

11.6

8.9

8.2 

21

856.30

28.5

44.1

2,630

Dec.

8.7

15.4

7.9

4.9

3.5

 3.3

3.1

5.1

2.9

2.35

10.8

3.4

2.35

2.15 

1.94

1.87

1.74

1.68 155 

458

186

26.5

15.3

23

13.0

9.1

7.5

6.7

5.8

195

70

1,253.98

40.5

62.7

3,850

Jan.

21

12.4

17.6

9.7

7.5

6.5

6.0

6.0

12.4

10.6

14.4

55

3O

10.7 

17.0

15.2

7.7

6.0

4.9

4.8

4.0

5 .5

*5.0

4.3

24.5

16.8

7.2

11.7

39.5

^ 3f

47

571.9

18.4

28.5

1,760

Feb.

11.2

97

48

18.6

17.0

12.9

12.5

9.1

7.7

6.7

6.0

5.5

4.9

6.2 

22

35

22

19.0

16.0

35

14.7

8.8

23.5

98

63

73'

50

21

*22

786,. 3

Z<7.1

41.9

2,410

Mar.

15.6

10.5

8.8

7.7

8.1

7.0

5.5

4.9

4.6

4.8

18.3

5.9

4.2

8.1 

6.0

4.6

6.2

4.4

19.1

6.8

4.0

8^

29.5

12.7

15.6

12.9

52

11.6

46

67

29 5

4S&.7

14.5

22.4

1,380

Apr.

66

37.5

21

33.5

18. 0

13.8

13.4

8.4

9.1

7.2

6.7

6.3

5.8

H

6.4

25

6.O

6.7

121

80

25

16.2

8.8

7.2

35.5

8.8

6'. 7

6.0

18 . 7

634.9

21.2

32.8

1,950

May

16.8

6.5

5.8

4.8

7.5

35

42

11.3

8.8

12.1

*17.3

13.9

13.0

21 

9.2

6.3

4.9

59

30

9.1

8.5

6.7

8.4

8.4

28.5

51

54

20

37.5 

20

49

626.3

20.2

31.3

1,920

June

23.5

23.5

39

18.6

11.2

21

42

14.7

15.3

25

33.5

56

29.5

23.5 

15.8

10.5

14.0

28

23

10.5

17.3

20

11.2

9.1

9.8

10.8

8.4 

13TO

668.7

22.3

34.5

2,050

1.68 Mean(mgd) 21.3 Mean(cfs) 33.0 Ao-ft 23.86O

Fiscal year 1955-56: Max 458 Mln 1.68 Mean(mgd) 21.7 Mean(cfs) 33.6 Ao-ft 24,360

Peak dlscha 

(11:30 p 

Dec. 30 

8.36 ft.

1955-56; Max 458 Mln 1.68 Mean(mgd) 21.7 Mean(efs) 33.6 Ac-ft 24.360

arge (base, 950 mgd). Nov. 1O (2:3O a.m.) 4,000 mgd (6.19O ofs), 10.34 ft; Nov. 25

.m.) 1,080 mgd (1,67O cfs), 6.45 ft; Dec. 2O (2:3O a.m.) 4,300 mgd (6,650 cfs), 10.64 ft;

(10:30 p.m.) 2,560 mgd (3,960 cfs), 8.72 ft; Jan. 30 (8 p.m.) 2,320 mgd (3,590 cfs),

* Discharge measurement made on this day.
ISLAND OF MOLOKAI 75

Pulena Stream near Wailau

Location.--Lat 21°07'40", long 156°49'50", on left bank 0.5 mile upstream from confluence 

with Waiakeakua Stream, 3 miles south of Wailau, and 4 miles northwest of Pukoo.

Drainage area. 4.4 sq mi.

Records available. October 1919 to December 1928, September 1937 to June 1956.

Gage. Water-stage recorder. Datum of gage is 591 ft above mean sea level (hand levels 

~^oy Bureau of Reclamation). Prior to Dec. 5, 1928, at site 150 ft upstream at different datum.

Average discharge. 26 years (1920-28, 1938-56), 22.3 mgd (34.5 cfs).

Extremes. Maximum discharge during year, 3,370 mgd (5,210 cfs) Dec. 20 (gage height,

9.97 ft). from rating curve extended above 220 mgd as explained below; minimum, 4.1 mgd 

(6.3 cfs) Dec. 18, 19.

19^9-28, 1937-56: Maximum discharge, 5,970 mgd (9,240 cfs) Jan. 26, 1948 (gage 

height, 13.16 ft), from rating curve extended above 220 mgd by test on model of station site; minimum, 3.0 mgd (4.6 cfs) June 28, July 14, 1920, Oct. 8, 1952, Sept. 27, 

29, Oct. 10, 1953.

Flood of Jan. 20, 1929, reached a stage of at least 22 ft (discharge, approximately 

11,000 mgd, 17,000 cfs).

Remarks. Records fair prior to Dec. 21, poor thereafter. 

Revisions (fiscal years). WSP 1185: 1938-48(M).

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

Day

1

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean:

rage

cfs

Ac-ft

July

24.5

17.1

13.0

14.0

11.3

9.9

9.6

8.3

8.0

9.0

7.3

9.8

*39.5

33

54

24.5

16.3

25.5

14.1

11.9

10.4

9.6

9.0

9.3

17.8

11.6

46

145

49

42'

738.8

23.8

36.8

2,270

Aug.

22.5

45

54

26.5

21

17.1

14.4

25

30.5

49

~35 104

31

31

21.5

18.7

35

34

42

23.5

18.7

15.9

24.5

26.5

26.5

23

18.7

14.4

12.6 

13.7

14.7

889.9

28.7

44.4

2,730

Sept.

24

48

25.5

24

16.7

14.4

12.6

11.6

10.7

9.9

9.6

9.6

8.8

8.3

10.7

10.3

7.8

9.8

8.3

*7.3

7.6

*7.1

7.1

6.2

6.0

6.0

6.0

8.2

17.4 

8.0

367.5

12.2

18.9

1,130

Oct.

11.9

12.8

16.1

38

45

20.5

12.6

9.9

9.0

8.5

8.3

8.6

27.5

9.3

8.3

7.8

7.3

6.8

7.1

6.6

6.2

1,0

6.2

5.6

9.6

6.8

6.4

7.9

7.6 

6.0

8.1

359.3

11.6

17.9

1,100

Nov.

6.2

5.8

5.2

5.2

5.0

4.8

4.8

6.5

288

476

50

*27

17.9

56

23.5

17.1

23

25.5

30.5

28.5

24.5

21.5

16.3

15.9

12.6

11.3

9.6

9.9

9.3

8.0

1,245.4

41.5

64.2

3,82O

Dec.

7.8

8.3

6.8

6.4

5.0

6.0

5.8

6.0

5.4

5.2

7.1

5.2

5.O

4.8

4.4

4.3

4.3

24~4.1

998

463

60

44

32

24

15

11

8.5

7.0

55

120

2,181.4

70.4

109

6,690

Jan.

SO

34

24

14

1O

7.5

5.0

8.5

15

11

10

1OO

80

34

32

24

15

10

8.0

*6.0

12

12

10

10

17

14

11

1O

14

"60

899.0

29. 0

44.9

2,760

Feb.

18

42

50

30

15

12

11

9.0

7.5

7.0

6.5

7.5

6.5

8.5

15

42

17

55

42

7O

24

14

38

110 ^75

110

75

36

32

985.5

34.0

52.6

3,020

Mar.

22

14

12

*11

*17

13

12

11

10

11

12

9.0

7.0

11

7.5

8.0

8.5

7.0

14

8.5

7.0

19

42

22

17

14

28

16

32

26 

16

464.5

15.0

23.2

1,43O

Apr.

40

26

20

18

14

14

12

10

13

12

10

1O

13

6.5

9.0

8.5

11

7.0

14

85

50

32

22

15

12

13

10

9.5

10

13

539.5

18. 0

27.9

1,660

May

12

6.5

7.0

8.0

9.0

15

19

 6^

10.7

42

26

18.3

14.0

34

18.4

14.0

10.7

26.5

27

12.4

11.9

10.7

10.7

10.7

25

22

25

16.8

55

34 

43

601.5

19.4

30.0

1,850

June

34

36.5

59

44

30.5

34

37.5

27

31.5

69

55

-88 159

70

42

27

24

21

21

16.2

19.2

58

48

34

21

16.2

19.8

16.2

17.6

27

1,203.2

40.1

62.0

3,690

Calendar year 1955: Max 998 Min 4.1 Mean(mgd) 29.5 Mean(cfs) 45.6 Ac-ft 33,100

Fiscal year 1955-56: Max 998 Min 4.1 Mean(mgd) 28.6 Mean(cfs) 44.3 Ac-ft 32,150

Peak discharge (base, 1.80O mgd).--Nov. 9 (8:3O p.m.) 2,200 mgd (3,40O cfs), 8.20 ft; Dec. 20 

(2 a.m.) 3,37O mgd (5,210 cfs), 9.97 ft; Jan. 30 (7:3O p.m.) 2,2OO mgd (3,400 cfs), 8.2O ft.

* Discharge measurement made on this day.

Note. No gage-height record Dee. 22 to May 7; discharge estimated on basis of recorder graph, 

discharge measurements, and records for nearby streams.

527571 0-59-6
76 ISLAND OF MOLOKAI

Waiakeakua Stream near Wailau

Location. Lat 21°07'30", long 156 0 49'40", on right bank 0.8 mile upstream from confluence 

with Pulena Stream, 3.2 miles south of Wailau, and 3.8 miles northwest of Pukoo.

Drainage area. 1.4 sq mi.

Records available. November 1919 to September 1929, September 1937 to June 1956.

Gage. Water-stage recorder. Datum of gage is 698 ft above mean sea level (hand levels by 

"^Bureau of Reclamation). Prior to Dec. 6, 1949, at datum 0.17 ft higher.

Average discharge. 27 years (1920-29, 1938-56), 7.55 mgd (11.7 cfs).

Extremes . Maximum discharge during year, 850 mgd (1,320 cfs) Nov. 10, Dec. 20, from 

rating curve extended above 25 mgd by test on model of station site; maximum gage 

height, 7.10 ft Dec. 20; minimum discharge, 1.70 mgd (2.63 cfs) Dec. 19.

1919-29, 1937-56: Maximum discharge, 1,730 mgd (2,680 cfs) Jan. 26, Apr. 2, 1948, 

from rating curve extended above 25 mgd by test on model of station site; maximum gage 

height, 9.90 ft Jan. 26, 1948; minimum discharge, 1.15 mgd (1.78 cfs) Nov. 1, 1949.

Remarks . Records fair.

Revisions (fiscal years) . WSP 1249: 

1948(P)!

1920(M) , 1923(M) , 1939(M) , 1943(M) , 1947(M) ,

Rating tables, fiscal year 1955-56 (gage height, in feet, and discharge, 

in million gallons a day)

July 1 to Nov. 10 Nov. 11 to June 30

1.7

1.8

1.9

2.0 

2.2

1.4 

2.5 

4.0 

6.2 

11.3

2.5 

3.0 

3.5 

4.0

1.8

1.9

2.0

2.1

2.2 

2.4

1.7 

3.1 

5.0 

7.2 

9.9 

17.2

2.6 

3.0 

3.5 

4.0 

4.5

55

98

153

220

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

12.3

8.3

6.0

7.3

8.5

5.5

9.0

4.6

4.4

4.4

3.7

47ff

*8.6

10.4

14.1

6.2

5.9

11.4

5.5

5.1

4.2

4.0

3.7

4.0

8.3

4.6

13.4

63

T5.4

T 0 *» 18, 6

293.7

9.47

14.7

901

Aug.

7.3

31

22

8.5

7.3

5.9

5.5

8.1

9.3

24

40-9-. 9

12.3

£0.5

7.3

7.3

11.9

19.2

13.5

16.1

7.3

6.2

9.7

5.9

7.0

6.5

5.5

4.6

TTff

4* 9

5.5

354.6

11.4

17.6

1,090

Sept.

9.9

~9~.9 21

11.2

6.2

5.7

5.3

4.9

4.4

4.2

4.2

4.0

3.7

3.7

4.9

4.0

3.55

4.2

*3.55

3.25

5.3

*5.3

4.4

3.4

3.25

2.95

5755

4.0

5.7

3 7

_______

162.70

5.42

8.39

499

Oct.

5.4

5.1

5.1

14.7

13.9

7.3

5.1

4.4

3.85

3.85

4.0

4.6

19.5 ~4T2-

3.7

3.7

3.55

3.25

3.25

3.25

3.1

2.95

3.1

3.65

3.4

3.25

3.75

3.25

2.95

2 8

375

157.40

5.08

7.86

483

Nov.

2.95

2.95

2.65

2.5

2.5

2.4

2.4 Z'.B

70

127

11.6

*6.8

5.4

16.1

6.5

5.4

6.6

9.2

15.2

8.5

10.1

8.9

6.5

8.0

10.7

8.9

4.8

5.4

4.4

4.4

_______

381.55

12.7

19.6

1,170

Dec.

3.65

7.4

3.5

3.1

2.95

2.8

2.8

2.8

2.55

2.4

3.3

2.4

2.4

2.1

1.98

1.98

1.98

1.84

189

84

11.6

7.2

6.8

4.8

4.0

3.65

3.1

2.95

30

34

489.03

15.8

24.4

1,500

Jan.

9.8

4.6

3.65

3.1

2.8

2.7

2.4

279

4.1

2.95

2.7

12.9

7.8

4.0

5.9

4.6

3.65

3.5

3.3

*3.05

2.8

3.5

2.7

2.7

3.45

3.1

2.7

4.2

7.9

42

14.0

179.45

5.79

8.96

551

Feb.

5.2

26.5

22

9.0

6.1

5.0

4.6

4.0

3.65

3.5

3.3

3.75

3.1

3755

5.8

13.5

5.8

16.0

11.2

19.4

7.2

5.4

15.7

47

55

37.5

21

9.9

9.9

350.55

12.1

18.7

1,080

Mar.

6.8

5.7

5.0

*4.6

*4.8

4.0

3.65

3.65

3.5

4.2

5.1

3.3

2.95

4.7

3.1

3.1

3.5

2.95

5.5

2.95

2.7

578

12.7

5.6

4.6

3.65

17.0

4.4

17.8

TcTT

5.0

173.00

5.58

8.63

531

Apr.

9.5

6.1

4.6

4.7

3.65

4.9

3.65

3.1

3.95

2.8

2.7

2.8

3.35

2.4

279~5

2.85

5.7

2.4

3.1

50

23

7.2

5.4

4.4

4.0

7.9

3.65

3.3

3.1

3.9

191.05

6.37

9.86

586

May

3.5

2.8

2.8

2.7

3775

6.2

*6.7

*4.8

4.4

7.2

6.9

5.4

6.0

15.4

6.5

4.8

4.4

28.5

1077

5.7

5.2

4.6

4.6

5.1

13.5

19.2

21

8.6

20.5

11.5

20

272.95

8.80

13.6

838

June

11.7

12.5

19.0

9.8

7.5

11.6

16.8

8.6

10.5

16.7

18.4

38

52

15.6

8.6

7.2

8.5

8.4

9.0

5.7

8.1

24.5

16.7

8.6

6.8

5.9

6.5

5.7

§4o. c.

362.5

12.1

18.7

1,110

Calendar year 1955. Max 189 Min 1.84 Mean(mgd) 8.84 Mean(cfs) 13.7 Ac-ft 9,900

Fiscal year 1955-56; Max 189 Min 1.84 Mean(mgd) 9.20 Mean(cfs) 14.2 Ac-ft 1O,340

eak discharge (base. 240 mgd). Nov. 10 (2 a.m.) 850 mgd (1,320 cfs), 7.07 ft; Dec. 20 (2 a.m.) 

850 mgd (1,320 cfs), 7.10 ft; Dec. 30 (10:30 p.m.) 370 mgd (572 cfs), 5.26 ft; Jan. 30 (8:30 p.m.) 

565 mgd (874 cfs), 6.10 ft._____________________________________________________________

* Discharge measurement made on this day.
ISLAND OP MOLOKAI 77

Pelekunu Stream near Pelekunu

Location. Lat 21°08'20", long 156 C 52'50", on right bank 0.8 mile upstream from Lanipuni 

Stream, 1.8 miles south of Pelekunu, and 6.8 miles northwest of Pukoo.

Drainage area. 2.4 sq mi.

Records available. December 1919 to January 1929, September 1937 to June 1956.

Sage. Water-stage recorder. Datum of gage is 546 ft above mean sea level (levels by 

Bureau of Reclamation). Prior to Sept. IS, 1937, at site 250 ft upstream at different 

datum.

Average discharge. 25 years (1920-28, 1938-47, 1948-56), 10.8 mgd (16.7 ofs).

Extremes. Maximum discharge during year, 2,000 mgd (3,090 cfs) Dec. 20 (gage height, 

4.81 ft), from rating curve extended above 80 mgd by test on model of station site; 

minimum, 3.3 mgd (5.1 cfs) Nov. 7, 8.

1919-29, 1937-56: Maximum discharge observed, 3,080 mgd (4,770 ofs) Nov. 20, 1940 

(gage height, 6.81 ft), from rating curve extended above 80 mgd by logarithmic plotting, but may have been greater Jan. 26, 1948, when flood of undetermined magnitude 

destroyed station; minimum discharge, 1.46 mgd (2.26 ofs) Nov. 26, 27, 1943.

Remarks. Records poor.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

CfE

Ac-ft

July

7.0

5.8

5.3

5.5

5.0

4.8

4.6

4.4

*4.6

5.0

4.3

67?

16.2

11.8

24.5

11.0

8.6

9.9

6.6

5.8

5.5

5.1

5.0

5.0

5.8

5.3

22

42

TSM

10.2

11 6

289.7

9.35

14.5

889

Au'g.

8.0

13.5

17.4

9.9

8.3

7.0

6.3

878

9.4

11.0

27

11. 0

9.4

9.1

8.6

7.0

9.6

12.1

13.2

8.8

7.3

6.3

7.8

13.0

12.5

9.6

9.1

6.8

6.3

6.3

6.3

306.7

9.89

15.3

941

Sept.

9.7

11.9

8^3

7.8

6.0

5.6

5.1

5.0

4.8

*4.6

4.4

4.4

4.1

4.1

4.4

4.4

4.0

4.3

4.4

4.0

3.85

3.85

3.85

3.75

3.75

3.75

3.75

3.9

4.8

3.9

150.45

5.02

7.77

462

Oct.

4.5

5.p

5.9

12.9

14.1

7.6

5.0

4.4

4.3

4.1

4.1

4.3

5.6

4.1

4.0

3.9

3.9

3.85

3.85

3.85

3.75

3.65

3.75

3.85

4.0

3.65

3.65

3.65

3.65

3.45

3775"

150.05

4.84

7.49

460

Nov.

3.65

3.45

3.45

3.4

374

3.4 3.4

4.0

e40

e80

27

13.0

9.9

21.5

12.6

9.9

12.0

11.0

11.5

10.6

13.0

11.7

9.4

8.3

7.0

6.3

5.8.

5.8

5.5

5.0

364.95

12.2

18.9

1,120

Dec.

5.0

4.8

4.6

4.4

4.4

4.4

4.3

4.3

4.1

4.1

4.6

4.1

4.0

3.9

3.9

3.9

3.85

3785"

e50

e550

e!20

35

17

12

10

8.8

8.2

7.8

7.4

12

25

739.70

23.9

37.0

2,270

Jan.

13

9.2

8.2

7.4

6.8

6.4

6.0

6.6

11

7.0

6.4

45

15

21

16

13

11

*9.5

8.3

7.6

7.0

6.3

5.8

7.0

5.8

5.0 F76"

8.0

25

20

354.9

11.4

17.6

1,090

Feb.

10

40

18

16

10

8.0

7.0

7.0

6/.4

e.o

6.6

5.8

5.4

6.2

7.6

12.0

9.0

26

20

45

15

10

21

50

35

60

47

23

21

554.0

19.1

29.6

1,700

Mar.

17

TT

*12

10.7

9.9

9.1

8.3

7.6

7.0

7.6

7.3

6.6

6.6

6.8

6.6

6.3

373

6.3

6.3

6.3

6.3

8.3

13.5

10.8

8.8

7.2

11.0

7.6

13.2

10.3

7.6

273.2

8.81

13.6

838

Apr.

18.4

13.9

10.5

10.3

8.0

7.8

7.0

6.3

8.3

7.9

6.8

6.3

6.6

6.0

7.5

6.3

6.0

6.0

6.6

70

25

13

8.4

7.0

6.4

6.6

5.8

5.4

5.2

 a

1 0

316.9

10.6

16.4

973

May

6.4

5.2

5.6

4.5

*67&~

7.9

8.5

5.6

5.6

14.4

13.0

11.6

8.8

12.1

10.2

9.1

7.6

9.5

10.2

7.8

8.9

7.6

6.8

6.8

11.0

9.6

8.3

8.0

15.3

12 . 3

B ^

280.4

9.05

14.0

861

June

13.0

12.2

18.5

16.5

14.3

15.1

14.7

12.6

14.4

23

21.5

63

35.5

31

21

16.0

14.3

13.0

12.0

10.5

11.0

17.4

17.5

14.7

12.0

10.7

12.0

10.7

9.9

1575

520.3

17.3

26.8

1,600

Calendar year 1955 . Max 35O Min 3.4 Mean(mgd) 13.1 Mean(cfs) 20.3 Ac-ft 14,640

Fiscal cal year year 1955-56 1955-56: : Max Max 350 350 Min Min 3.4 3.4 Mean(mgd) Mean(mgd) 11.8 11.8 Mean(cfs) Mean(cfs) 18.3 18.3 Ac-ft Ac-ft 13,200 13,200

ik discharge (base, 300 mgd). Nov. 9 (8:30 p.m.) discharge unknown (3.53 ft); Dec. 20 (2:30 a.m.) 

:,000 mgd (5,090 cfs), 4.81 ft; probably Feb. 2 (time and discharge unknown), . 5.51 ft.________

 * Discharge measurement made on this day. 

e Stage-discharge relation indefinite; discharge estimated on basis of records for nearby streams. 

Note. No gage-height record Dec. 22 to Jan. 19, Jan. 25 to Mar. 3, Apr. 20 to May 4; discharge 

estimated on basis of records for nearby streams.
78 ISLAHD OP MOLOKAI

Lanipuni Stream near Pelekunu

Location. Lat 21°08 I 40", long 156°52'30", on left bank 0.4 mile upstream from mouth, 

1.5 miles southeast of Pelekunu, and 6.8 miles northwest of Pukoo.

Drainage area. 0.8 sq mi.

Records available. December 1919 to September 1929, September 1937 to June 1956.

Gage. Water-stage recorder. Datum of gage is 418 ft above mean sea level (hand levels 

from Geological Survey bench mark).

Average discharge. 26 years (1920-29, 1938-47, 1948-56), 9.24 mgd (14.3 cfs).

Extremes. Maximum discharge during year, 530 mgd (820 cfs) Dec. 21 (gage height, 

5.49 ft), from rating curve extended above 35 mgd as explained below; minimum, 

2.15 mgd (3.35 cfs) Dec. 19.

1919-29, 1937-56: Maximum discharge (corrected), at least 3,000 mgd (4,640 cfs) 

Jan. 26, 1948 (gage height, at least 12 ft, from debris in shelter), from rating 

curve extended above 35 mgd by test on model of station site; minimum, 1.45 mgd 

(2.24 cfs) Jan. 29, 1944.

Remarks. Records good.

Revisions (fiscal years). WSP 1249: 1943(M).

Rating table, fiscal year 1955-56 (gage height, in feet, and 

discharge, in million gallons a day)

0.3 

.4 

.5 

.7

1.0

2.25 

3.6 

5.3 

9.9

20

1.5 

2.0 

2.5 

3.0 

3.5

37

57

85

123

174

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

8.0

6.4

6.4

7.3

5.3

4.3

4.1

3.6

*3.8

3.95

305

6.8

16.4

13.2

22.5

9.9

7.7

11.7

6.4

5.3

4.6

4.1

4.1

4.2

8.6

5.1

22 |

37.5

137&"

8.2 

15.5

283.10

9.13

14.1

869

Aug.

7.6

15.2

14.3

7.9

6.6

5.7

5.0

10TT

10.1

19.6

30.5

10.5

8.9

9.0

8.2

6.5

12.1

13.2

10.5

7.2

6.1

5.7

8.2

13.0

10.9

8.6

7.6

6.1

5.3

5.5,

301.6,

9.73

15.1

926

Sept.

13.9

14.8

s]2

6.4

5.7

5.0

4.6

4.3

*3.95

3.75

3.95

3.6

3.75

4.4

4.1

3.45

4.7

3.45

3.15

3.15

3.0

2.85

2783"

2.85

2.85

2.85

3.6

6.3

3.3

148.15

4.94

7.64

455

Oct.

5.3

5.9

7.7

16.1

167T

8.0

5.3

4.4

3.95

3.95

3.6

8.3

13.3

5.0

4.3

3.95

3.45

3.3

3.8

3.3

3.0

2.85

3.15

3.4

3.4

3.2

2.85

3.0

2.75

fti,

162. 80t

5.25

8.12

500

Nov.

2.85

2.6

2.5

2.5

2.35

2.35

2.35

2.5

26

50

9.4

6.4

5.3

16,7

7.2

5.9

9.1

7.4

10.3

8.3

11.3

9.3

7.0

5.9

4.8

4.3

3.75

3.95

3.45

3.15

238.90

7.96

12.3

733

Dec.

3.0

3.0

2.85

2.85

2.75

2.6

2.75

2.75

2.5

2.6

4.5

2.6

2.5

2.35

2.25

2.25

2.25

2.25

45

156

76

13.3

8.4

7.6

6.1

5.3

4.8

4.3

3.95

8,9 

19.8

408.05

13.2

20.4

1,250

Jan.

9.5

6.1

5.1

4.9

4.1

3.75

3.45

4.3

9.3

4.6

3.75

31

T5.8

7.6

11.5

7.6

5.9

5.0

*4.1

3.75

3.45

3.6

3.15

BT9~ 3.0

4.8

3.6

5.0

6.7

16, 6 

13.2

220.10

7.10

11.0

675

Feb.

6.4

30

13.0

12.1

7.6

6.4

5.5

5.5

4.4

4.1

4.4

3.75

3^6

4.3

5.9

10.8

7.0

23.5

16.5

31

10.2

7.2

18.2

36.5

28.5

38.5

3^75

14.0

13.3

.___ 

404.65

14.0

21.7

1,240

Mar.

8.9

7.4

*6.6

5.9

5.9

5.3

4.6

4.4

4.1

5.0

6.6

3.95

3.6

7.0

4.1

3.75

3.95

3.45

3.6

3.15

3.0

10T5

16.5 "576"

8.0

5.9

9.0

6.1

9.7 

7.8

5.7

193.05

6.23

9.64

592

Apr.

21

11.4

8.4

8.5

6.8

7.3

6.4

5.3

5.9

5.7

5.1

5.7

5.2

4.1

77T

5.7

4.6

4.1

5.0

45

18.1

9.9

7.4

6.1

5.3

5.9

4.6

4.4

4.1 

7 3

251.4

8.38

13.0

772

May

5.9

4.9

5.4

4.1

*6.0

7.6

7.2

5.3

4.8

15.1

9.3

7.9

6.4

8.7

6.9

5.7

4.6

13.2

9.5

6.8

9.1

6.1

5.5

6.1

9.5

7.4

9.0

7.0

15.0 

11.9

18.0

249.9

8.06

12.5

767

June

9.9

9.4

16.0

12.5

10.2

11.4

10.8

11.3

11.9

22.5

18.7

23 35.5

24.5

12.0

8.6

8.4

8.1

7.6

6.6

7.4

15.9

14.6

10.2

7.4

6.8

8.6

7.0

7.0 

10.9

374.7

12.5

19.3

1,150

Calendar year 1955. Max 156 Win 2.25 Mean(mgd) 9.57 Mean(cfs) 14.8 Ae-ft 10,720

Fiscal year 1955-56: Max 156 Win 2.25 Mean(mgd) 8.84 Mean(cfs) 13.7 Ae-ft 9,930

Peak discharge (base, 300 mgd).--Nov. 9 (9 p.m.) 370 mgd (572 cfs). 4.80 ft; Dec. 21 (2 a.m.) 

550 mgd (820 cfs), 5.49 ft; Jan. 12 (7:50 a.m.) 550 mgd (542 cfs), 4.74 ft.

* Discharge measurement made on this day.
ISLAND OF MOLOKAI 79 

Waikolu Stream below pipeline crossing, near Kalaupapa

Location. Lat 21°09'50" , long 156°56'00", on left bank 0.8 mile upstream from mouth and 

3^9 miles southeast of Kalaupapa Post Office.

Drainage area. 4.0 sq mi.

Records available. June 1919 to July 1932, September 1937 to June 1956. Prior to November 1930, published as Waikolu Stream at pipeline crossing.

Gage. Water-stage recorder and concrete control. Datum of gage is 253 ft above mean sea 

level (hand levels by Bureau of Reclamation). Prior to Nov. 18, 1930, water-stage 

recorder at site 500 ft upstream at different datum. Sept. 20, 1937, to July 1948, 

water-stage recorder at present site at datum 0.49 ft higher.

Average discharge. 26 years (1919-29, 1938-47, 1949-56), 11.7 mgd (18.1 cfs).

Extremes. Maximum discharge during year, 1,900 mgd (2,940 cfs) Dec. 20 (gage height, 

7.83 ft), from rating curve extended above 25 mgd as explained below; minimum, 5.3 mgd 

(8.2 cfs) Dec. 18, 19, Jan. 25.

1919-32, 1937-56: Maximum discharge, 3,700 mgd (5,720 cfs) Jan. 26, 1948 (gage 

height, about 10.25 ft) , from rating curve extended above 25 mgd by test on model of 

station site; minimum, 1.3 mgd (2.0 cfs) Nov. 1, 2, 1925, June 5, 1926.

Remarks. Records good. Kalaupapa water-supply system diverts water above station. 

Revisions (fiscal years). WSP 1155: 1932(M) , 1938-48{M) .

Rating table, fiscal year 1955-56 (gage height, in feet, and 

discharge, in million gallons a day)

1.8

1.9

2.0 

2.2 

2.4

4.5

7.2

10.7

20.5

34

2.7 

3.0 

3.5 

4.0 

4.5

182

290

415

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

Day

1

a

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

Mean:

mgd

cfs

Ac-ft

July

10.4

9.6

9.0

9.6

9.0

8.6

8.2

*7.9

872

8.2

8.2

9.0

24

17.4

24

11.1

9.3

12.1

9.0

8.6

8.2

7.9

7.9

7.9

7.9

8.2

19.8

37

Iff. 7

9,6 

13.8

360.3

11.6

17.9

1,110

Aug.

9.6

13.9

18.6

9.3

8.6

8.2

7.9

9.0

14.2

12.7

39

10.4

9.3

9.6

10.0

9.6

14.0

12.5

16.6

9.0

8.2

7.9

9.3

19.4

15.6

12.1

9.0

8.2

7.6

TTS" 7.2 

364.1

11.7

18.1

1,120

Sept.

11.5

15.4

10.0

9.0

8.2

7.9

7.6

7.2

*6.9

6.9

6.9

6.9

6.9

6.9

6.9

6.9

6.9

6.9

6.9

6.9

6.9

6.9

6.7

177

6.7

6.7

6.7

6.7

6.9

7.2

227.7

7.59

11.7

699

Oct.

6.9

8.2

9.0

18.6

T67§

9.6

7.9

6.9

6.7

6.4

6.4

6.9

7.6

6.7

6.4

6.4

6.4

6.4

6.7

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.1

6.1

6.1

6*1 

6.1

232.2

7.49

11.6

713

Nov.

6.1

S7T

6.1

6.1

6.1

6.1

6.1

6.4

53

155

10.3

7.9

6.9

*9.9

9.2

7.2

10.6

9.6

7.6

9.0

15.1

13.9

9.0

7.6

6.9

6.7

6.4

6.1

6.1

6.1

407.2

13.6

21.0

1,250

Dec.

6.1

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

6.4

6.1

5.8

5.8

5.6

5.6

5.6

5.6

70

298

185

15.1

9.0

7.9

7.2

6.9

6.7

6.7

6.4

7.6 

6.9

738.2

23.8

36.8

2,270

Jan.

7.2

6.7

6.4

6.7

6.7

6.4

6.1

6.4

8.3

6.9

6.4

42

28

9.6

14.7

11.9

6.9

*6.4

6.1

5.8

5.8

5.8

5.8

5.8

6.1

6.9

6.7

7.9

11.8

^

402.2

13.0

20.1

1,230

Feb.

8.2

71

17.6

15.3

9.6

7.6

7.6

15.5

9.7

6.7

6.9

7.2

6.9

6.7

7.4

15.1

8.8

34.5

40

71

10.0

7.9

12.5

42

32

42

33

13.6

14.4

580.7

20.0

30.9

1,780

Mar.

12.4

*9.0

7.9

7.6

7.6

7.6

7.2

6.9

6.9

7.2

8.2

7.2

6.9

9.7

7.6

6.9

6.7

6.7

6.4

674

6.4

12.0

26.5

TB7T

9.3

9.7

10.5

9.0

10.7

10.5 

7.2

280.5

9.05

14.0

861

Apr.

42

16.6

11.1

14.6

10.0

12.8

12.9

8.6

9.6

9.0

9.3

8.6

7.6

6.9

6.9

7.2

6.9

6.7

679

102

28

17.1

11.4

8.6

7.6

7.6

7.2

7.6

7.6 

17.5

436.4

14.5

22.4

1,340

May

13.5

8.6

*8.2

7.9

8.6

11.4

9.3

8.6

8.2

11.3

13.9

9.3

8.6

9.0

8.6

7.9

7.6

10.0

13.8

7.9

11.0

8.2

7.2

772

8.6

9.0

8.2

7.6

10.0

10.5

13.2

292.9

9.45

14.6

899

June

8.6

8.2

11.4

13.3

9.6

11.1

10.0

9.0

9.6

18.8

15.4

45

26*. 5

26

12.3

9.0

8.6

6.6

8.2

7.9

7.6

10.7

13.7

11.6

8.6

7.6

7.6

7.9

7.9 

10.7

371.0

12.4

19.2

1,140

Calendar year 1955. Max 298 Min 5.6 Mean(mgd) 16.6 Mean(cfs) 25.7 Ac-ft 18,630

Fiscal year 1955-56: Max 298 Min 5.6 Mean(mgd) 12.8 Mean(cfs) 19.8 Ac-ft 14,410

Peak discharge (base, 450 mgd). Nov. 10 (2:30 a.m.) 566 mgd (876 cfs), 5.03 ftj Dec. 20 (1:30 a.m.) 

1,900 mgd (2,940 cfs), 7.83 ft; Jan. 30 (7 p.m.) 845 mgd (1,310 cfs), 5.69 ftj Feb. 2 (10 a.m.)

715 mgd (1,110 cfa), 5.37 ft.

Discharge measurement made on this day.
80 ISLAND OF MOLOKAI

Waialala Springs near.Kalae

Location. Lat 21°10'20", long 157°00'05", on left bank on highway from Kalae to Kalaupapa Pali, 0.8 mile northeast of Kalae and 5.7 miles northeast of Kaunakalcai Post 

Office.

Records available. September 1940 to June 1956.

Gage. Water-stage recorder and sharp-crested V-notch weir. Altitude of gage is 1,600 

rt (from topographic map).

Average discharge. 15 years (1941-56), 0.016 mgd (0.025 cfs).

Extremes. 1940-56: Maximum daily discharge, 0.275 mgd (0.425 cfs) Mar. 11, 1942; minimum daily, 0.001 mgd (0.002 cfs) Feb. 8-16, 1956.

Remarks. Records good except those for period of no gage-height record, which are poor. 

Maul County Water Works diverts entire flow for domestic supply, from tail bay at 

station.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

0.015

.015

.016

.016

.015

.013

.014

.014

.014

.014

.013

.013

.013

.013

.013

.013

.013

.013

.013

.013

.013

.013

.013

.013

.013

.013

.013

.013

.013 

.013

.013

0.419

O.O14

0.022

1.3

Aug.

0.013

.013

.013

.013

.013

.013

.013

.013

.013

.014

.013

.013

.013

.012

7012

.012

.012

.012

.012

.012

.012

.012

.012

.012

.012

.012

.012

.012

.012 

.012

.012

0.386

0.012

0.019

1.2

Sept.

0.012

.012

.012

.012

.012

.011

.011

.011

.011

.Oil

.011

.011

.Oil

.011

.011

.Oil

.011

.012

.011

.011

.011

.011

.012

.011

.011

.010

.Oil

.011

.011 

.011

O.336

0.011

0.017

1.0

Oct.

O.O11

'Toil

.011

.011

.011

.011

.011

.Oil

.011

.011

.010

.010

.010

.010

.010

.010

.010

.010

.010

.010

.010

.010

.010

.010

.010

.010

.010

.010

.010

.009

.009

O.318

0.010

O.O16

1.0

Nov.

0.01O

.O1O

.010

.O1O

.009

.OO9

.010

.009

.009

/012

:on

.010 .009 .009

.009

.009 .009 .009 .009

.009

.009

.009

.009

.009

.009

.009

.009

.009

.009

 I???

0.281

0.009

0.014

0.9

Dec.

O.O09

.009

.009

.009

.009

.OO9

.009

.009

.009

.009

.009

.009

.009

.OO9

.OO9

.009

.009

.009

.009

.003

.002

756T

.011

.Oil

.010

.010 .010

.010

.010

.010 

.010

0.275

0.009

0.014

0.8

Jan.

0.010

.O1O

.010

.O1O

.010

.010

.O1O

.OO9

.OO9

.009

.009

.009

.009

.009

.009

.009

.009

.OO9

.009

.009

.009

.009

.010

.010

.O1O

.010

.009

.009

.009

.012 

.013

0.297

O.01O

O.O16

0.9

Feb.

0.012

.005

.002

.002

.OO2

.002

.002

.001

Tool

.001

.OO1

.001

.001

.001

.001

.001

.007

.Oil

.011

.011

.011

.010

.010

.010

.010

.010

.010

.010

.010

 

0.167

0.006

0.009

0.5

Mar.

O.O1O

.010

.O1O

.O1O

.010

.010

.011

.011

.011

.012

.011

.011

.012

.011

.011

.011

.011

.O1O

.O1O

.010

.010

.011

.011

.Oil

.011

.011

.010

.010

.010

.010

.010

0.328

0.011

0.017

1.0

Apr.

0.012

.012

.012

.012

.011

.011

.011

.010

.O1O

.010

.010

.010

.009

.009

.009

.009

,O09

.009

.009

.012

.012

.012

.011

.011

.011

.010

.010

.010

.010

.012

0.315

O.O10

0.016

1.0

May

O.O12

.012

.011

.011

.011

.012

.012

.011

.012

.012

.013

.013

.011

.012

.011

.011

.Oil

.011

.010

.O1O

.010

.010

.010

.009

.OO8

.008

.008

.008

.008 

.008

.008

0.324

O.010

0.016

1.0

June

0.008

.008

.008

.008

.008

.OO8

.008

.008

.008

.008

.007

.007

.007

.007

.007

.007

.007

.007

.007

.007

.007

.007

.007

.007

.007

.007

.007

.007

.007 

007

0.220

0.007

0.011

0.7

Calendar year 1955: Max 0.022 Min O.OO2 Mean(mgd) O.O14 Mean(cfs) O.O22 Ac-ft 16

Fiscal year 1955-56; Max 0.016 Min O.OO1 Mean(mgd) O.O1O Mean(cfs) 0.016 Ac-ft 11

Note. No gage-height record Mar. 14 to May 11; discharge estimated on basis of records for nearby 

streams.
ISLAND OP MOLOKAI 81

Kaunakakai Stream at Kaunakakai

Location. Lat 21°06'10", long 157°00'50", on left bank 0.6 mile upstream from Molokai 

Ranch pipeline crossing, 1.3 miles northeast of Kaunakakai Post Office, and 1.7 miles 

upstream from mouth.

Drainage area. 6.48 sq mi.

Records available. December 1949 to June 1956.

Gage. Water-stage recorder. Altitude of gage is 240 ft (from topographic map).

Average discharge.--6 years (1950-56), 1.60 mgd (2.48 cfs).

Extremes. Maximum discharge during year, 1,060 mgd (1,640 cfs) Dec. 20 (gage height, 

6.86 ft); no flow most of time.

1949-56: Maximum discharge, 1,120 mgd (1,730 cfs) Mar. 13, 1951 (gage height, 

7.10 ft) , from rating curve extended above 130 mgd; no flow most of time.

Remarks. Records fair.

 Revisions (fiscal years). WSP 1289: 1950-51.

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

1.2

1.3

0

.33

.69

1.49

2.45

5.2

10.2

2.7 

3.0 

3.3 

3.6 

3.9 

4.2

54

85

132

193

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cfs

Ac-ft

July

0

0

0

0

Aug.

0

0

0

0

Sept.

0

0

0

0

Oct.

0

0

0

0

Nov.

0

0

0

0

0

0

0

0

6.2

*99

2.8

0

0

0

0

0

0

0

0

0

0

0

0

0

n

0

0

0

0

0

108.0

3.60

5.57

331

Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

182

130

15.2

3.8

.05

0

0

0

0

0

0

0

331.05

10.7

16.6

1,020

Jan.

0

0

0

0

0

0

0

0

0

0

0

0

6.7

3.75

0

1.52

0

0

0

0

0

0

0

0

0

0

0

0

0

48 jjg84.97

2.74

4.24

261

Feb.

3.3

15.7

13.4

5.3

2.9

0

0

0

0

0

0

0

0

0

0

0

0

0

0

27.5

3.5

0

0

1.02

10.0

8.9

9.2

5.6

.15

106.47

3.67

5.68

327

Mar.

0

0

0

0

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.66

1.48

0

0

0

0

0

0

0

0

0

2.14

0.071

0.110

6.6

May

0

0

0

0

June

0

0

0

0

0

0

0

0

0

0

0

.09

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.09

0.003

0.005

0.3

Calendar year 1955: Max 182 Mln 0 Mean(mgd) 2.09 Mean(cfs) 3.23 Ac-ft 2,350

Fiscal year 1955-56: Max 182 Mln 0 Mean(mgd) 1.73 Mean(cfs) 2.68 Ac-ft 1,950

eak discharge (base, 500 mgd). Nov. 10 (3:30 a.m.) 530 mgd (820 cfs). 5.19 ft; Dei 

1,060 mgd (1,640 cfs), 6.86 ft; Jan. 30 (8:30 p.m.) 530 mgd (820 cfs), 5.21 ft.

!C. 20 (2 a.m.)

Discharge measurement made on this day.
82 ISLAND OF MOLOKAI

Right Branch of East Fork Kawela Stream near Kamalo

Location.--Lat 21°06'50", long 156 0 54'30", on left bank at Molokai Ranch pipeline intake, 

4.7 miles northwest of Kamalo and 7.6 miles east of Kaunakakai.

Drainage area. 0.2 sq mi.

Records available. September 1946 to June 1956.

gage. Water-stage recorder and concrete control. Datum of gage is 3,624.86 ft above mean 

sea level (Territorial Survey bench mark).

Average discharge. 9 years (1947-56), 1.56 mgd (2.41 cfs).

Extremes. Maximum discharge during year, 189 mgd (292 cfs) Dec. 21 (gage height, 4.85 ft), 

from rating curve extended above 2.5 mgd as explained below; no flow for many days.

1946-56: Maximum discharge, 882 mgd (1,360 cfs) Jan. 26, 1948 (gage height, 

7.97 ft), from rating curve extended above 2.5 mgd by test on model of station site; no 

flow for many days.

Remarks. Records fair. Molokai Ranch diverts low flow from gage pool.

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

2.5

2.6

2.7

2.8

0

.03

.17

.45

.86

1.43

2.9

3.1 

3.3 

3.5 

4.0

2.15

5.1

12.5

25.5

76

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cfs

Ao-ft

July

1.50

.63

.05

.56

*.06

0

0

0

0

.23

.01

1.85 

8.7

5.1

8.2

1.90

.56

2.75

.26

.01

0

0

0

0

0

.35

9.6

10.4

"TTso

1.21 

1.76

57.49

1.85

2.86

176

Aug.

0.40

1.97

4.40

.32

£

0

0

1.89

3.4

2.85

7.3

~756 

.68

1.11

1.80

.90

2.25

1.31

2.05

.23

0

0

1.28

6.3

6.2

2.45

1.07

.25

0

0 

.15

51.12

1.65

2.55

157

Sept.

3.65

4.7

1.55

1.14

.22

0

0

0

0

0

0

0 

0

0

0

0

0

0

.10

.10

0

0

0

0

0

0

0

.04

1.09

.45

13.04

0.435

0.673

40

Oct.

0.49

2.0

3.05

6.7

6.9

1.86

.51

.03

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

21.54

0.695

1.08

66

Nov.

0

0

0

0

0

0

0

0

*17.2

29

1.29

.23 

.01

2.55

1.39

.56

4.2

2.6

1.21

2.1

4.8

3.3

1.27

.56

.21

0

0

0

0

0

72.48

2.42

3.74

222

Dec.

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

0

0

0

0

13.7

5E.

31

2.05

.48

.14

.06

0

0

0

0

1 *08 

.37

100.88

3.25

5.03

310

Jan.

1.06

.09

0

0

0

0

0

0

.27

.16

0

12.3 

8.7

1.46

3.4

*2.15

.30

0

0

0

0

0

0

0

0

0

0

0

.17

^.2

65.26

2.11

3.26

200

Feb.

0.49

7.1

3.9

4.4

1.07

.32

.03

fi0

0

0

.52 

.46

.14

1.04

3.7

1.54

7.6

11.0

14,0

1.30

.52

3.25

12.7

8.0

12.5

9.0

*2.35

3.95

110.88

3.82

5.91

340

Mar.

3.2

.96

.24

.01

0

0

0

0

0

0

.01

0

0

0

0

0

0

0

0

0

0

.16

4.4

3.2

1.32

1.12

2.2

1.36

3.5

1 . 76 

.18

23.62

0.762

1.18

72

Apr.

3.2

2.6

1.10

.66

.40

.06

.35

.09

2.2

2.15

1.68

.86 

.38

.03

.87

.67

.09

0

0

16.0

4.3

2.15

1.01

.11

0

0

0

0

0

. 76

41.72

1.39

2.15

128

May

*1.44

.11

.58

.04

.34

1.69

1.12

.24

.10

2.35

2.05

1.62 

.34

1.39

.72

.58

.03

.69

1.67

.14

.06

*.07

0

0

1.68

1.19

.50

.20

5.75

1.70 

3.55

29.94

0.966

1.49

92

June

1.12

1.04

4.4

3.2

2.15

3.25

2.3

.99

2.75

6.8

5.6

"673 13.8 

5.0

1.22

.45

.35

.98

.79

.38

.56

4.3

4.7

3.3

.68

.10

.71

1.44

.27 2 15

81.08

2.70

4.18

249

Calendar year 1955: Max 52 Mln o Mean(mgd) 1.88 Mean(cfs) 2.91 Ao-ft 2,110

Fiscal year 1955-56: Max 52 Mln 0 Mean(mgd) 1.83 Mean(cfs) 2.83 Ac-ft 2,050

Peak discharge (base, 100 mgd). Nov. 9 (8 p.m.) 121 mgd (187 cfs). 4.36 ft; 

189 mgd (292 cfs), 4.85 ft; Jan. 30 (7:30 p.m.) 121 mgd (187 cfs), 4.37 ft.

* Discharge measurement made on this day.

4.36 ft; Dec. 21 (2 a.m.)
ISLAND OF MOLOKAI 83

Punaula Stream near Pukoo

Location. Lat 21°05'40" , long 156°48'40" , on right bank 1.5 miles northwest of Pukoo and 

5.5 miles northeast of Kamalo.

Drainage area. 0.4 sq mi.

Records available. March 1947 to June 1956.

Gage. Water-stage recorder. Altitude of gage is 1,200 ft (from topographic map).

Average discharge. 9 years, 0.813 mgd (1.26 cfs).

Extremes. Maximum discharge during year, 320 mgd (495 cfs) Nov. 10 (gage height, 

6.21 ft), from rating curve extended above 3.3 mgd as explained below; minimum, 

0.03 mgd (0.05 cfs) Nov. 7, 8, Dec. 15-19.

1947-56: Maximum discharge, 330 mgd (511 cfs) Apr. 2, 1948 (gage height, 

6.35 ft), from rating curve extended above 3.3 mgd by test on model of station site; 

minimum, 0.01 mgd (0.02 cfs) Mar. 13, 1947, Feb. 19, 1954.

Remarks. Records good except those for period of no gage-height record, which are fair.

Rating table , fiscal year 1955-56

discharge

0.

i!

47

5

6

7

8

9

0

0.

i!

2.

, In million

03

05

16

36

76

41

6

(gage height

gallons

1,

1

1,

1

2

2

.1

.3

.6

.9

.2

.6

In feet, and

a day)

4

7

14

24

35

53

.1

.7

.7

.5

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

28r?9

30

31

Total

Mean:

mgc

Cf£

Ac-ft

July

1.50

.71

.27

.84

.61

.48

*1.72

.28

.21

.21

.16

.24

1.29

2.1

1.74

.50

.24

1.40

.24

.19

.15

.12

.09

Tit

.54

.40

2.2

7.9

2.35

.77 

2.55

32.11

1.04

1.61

99

Aug.

0.38

4.6

3.1

.36

.26

.21

.16

764

.91

3.4

6.2

. 46

l!si

3.1

.39

.26

.88

.99

1.26

2.45

.30

.23

.92

.30

.82

.87

.53

.23

.21

.33 

.30

35.96

1.16

1.79

110

Sept.

0.81

3.25

T7IT

1.48

.33

.21

.15

*.12

.13

.12

.12

.17

.12

.09

.19

.24

.09

.23

.19

.15

.09

.26

.46

.17

.11

.07

.06

707

.67

, 26

11.52

0.384

0.594

35

Oct.

0.59

.46

.48

2.85

2TT-

.50

.23

.12

.09

.08

.13

.16

2.1

.16

.11

.09

.07

.05

.05

.05

.05

.04

755

.12

.24

.09

.06

.05

.09

.05

.17

11.68

0.377

0.583

36

Nov.

0.21

.25

.09

.05

.05

.04

.03

705

16.1

20.5"

.51

.21

*.13

1.42

.38

.23

.21

.85

2.05

.98

1.16

1.09

.54

.72

1.62

1.59

.33

.30

.24

.16

52.09

1.74

2.69

160

Dec.

0.16

1.01

.23

.13

.09

.09

.07

.08

.06

.05

.15

.08

.05

.04

.05

.03

.03

.03

31.5

39 .

11.6

.60

.21

.69

.24

.16

.12

.08

.07

5.3 

2.7

94.68

3.05

4.72

291

Jan.

1.11

.23

.15

.09

.07

.06

.05

710

.42

.17

.16

2.7

1.35

.23

.28

.30

.13

.07

a. 06

a. 05

a. 05

a. 08

.06

.05

.11

.26

.13

.13

1.40

10.1 ~T78"5

22.00

0.710

1.10

68

Feb.

0.26

4.3

2.9

1.35

.36

.19

.15

.11

.09

.08

.09

.24

.15

.16

.97

1.35

.88

2.4

1.16

2.65

.50

.24

1.61

6.6

279

4.6

2.0

.61

.79

39.69

1.37

2.12

122

Mar.

0.46

.28

.21

.16

.16

.13

.12

.11

.12

.13

.41

.15

.09

754

.21

.12

.16

.13

.75

.21

.12

.30

2.1

.51

.41

.36

3.05

.42

3.2

2.2 

.33

17.65

0.569

0.880

54

Apr.

1.05

.62

.33

.24

.21

.27

.36

.19

.36

.23

.19

.16

.19

7i&- .15

.16

1.07

.21

.18

7.9

5.0

.93

.42

.23

.17

.72

.21

.16

.17

.48

22.72

0.757

1.17

70

May

0.46

*.12

.12

.08

719

.56

2.75

.46

.30

.27

.53

.36

.36

1.15

.39

.21

.15

4.3

T731

.28

.21

.16

.16

.17

1.55

2.95

3.1

.73

2.95

1.12 

2.6

30.05

0.969

1.50

92

June

1.41

1.48

1.79

.76

.46

.82

2.55

.46

.57

1.58

3.65

3.85

2715

1.48

.50

.28

.37

.75

1.16

.36

.75

3.45

1.93

.67

.28

.21

723

.26

.24

1.14

35.59

1.19

1.84

109

Calendar year 1955. Max 39 Mln 0.03 Mean(mgd) 1.02 Mean(cfs) 1.58 Ac-ft 1,140

Fiscal year 1955-56: Max 39 Mln 0.03 Mean(mgd) 1.11 Mean(cfs) 1.72 Ac-ft 1,240

Peak discharge (base, 70 mgd). Nov. 10 (2 a.m.) 320 mgd (495 cfs). 6.21 ft; Dec 

296 mgd (458 cfs), 5.79 ft; Jan. 30 (7:30 p.m.) 118 mgd (183 cfs), 3.57 ft.

19 (11 p.m.)

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for nearby streams.
84 ISLAND OF MOLOKAI

Discharge measurements at points other than gaging stations

Measurements of streamflow on the island of Molokai made at points other than regular

f aging stations are given in the following table. Most of these measurements were made uring periods of base flow when streamflow is primarily from ground-water storage. Measurements believed to have been made under base-flow conditions are identified by an asterisk (*) to the left of the discharge figure. These measurements when correlated with the 

simultaneous discharge of a nearby stream where continuous records are available will give 

a picture of the low-flow potentiality of stream. The column headed, "Measured previously" 

shows the fiscal years in which measurements were made at the same, or practically the 

same, site.

Discharge measurements made at points other than gaging stations on the Island of Molokai during 

fiscal year July 1955 to June 1956

Stream

Kahawalikl 

Stream.

Wallau 

Stream.

Pelekunu 

Stream.

Walkolu 

Stream.

Right 

Branch 

Walkolu 

Stream. 

Second 

Right 

Branch 

Walkolu 

Stream. 

Walkolu 

Stream.

Do.......

Tributary to

Wallau 

Stream.

Pacific 

Ocean.

Walkolu 

Stream.

Pacific 

Ocean.

Location

Lat 21 "10 '00", long 156°49i5o", at 

Wallau Stream, near Wallau.

Lat 21°10'00", long 156 "49 '50", at 

mouth, near Wallau.

Lat 21 "09 '25", long 156°52'45", at 

altitude 100 ft, near Pelekunu.

Lat 21 "08 '35", long 156°55'15", at 

altitude 1,000 ft, above first 

fall, near Kalaupapa. 

Lat 21 S08'35", long 156 055'1O", at 

altitude 1,000 ft, at first fall, 

near Kalaupapa.

Lat 21 "08 '40", long 156"55'1O", at 

altitude 990 ft, at second fall, 

near Kalaupapa.

Lat 21 "08 "45", long 156°55'15", at 

altitude 9OO ft, at proposed site 

for gaging station, downstream 

from second fall, near Kalaupapa. 

Lat 21 "09 '05", long 156°55'35", at 

altitude 700 ft, near Kalaupapa.

Lat 21°10'20", long 156 "56 '00", at 

mouth, near Kalaupapa.

Measured 

previously 

(fiscal 

years )

1946 

1930

1920t, 

1921-23, 

1939

Date

Jan. 20 

Mar. 4 

May 9

Sept. 17 

Jan. 20 

Mar. 4 

May 9

Jan. 19 

Mar. 3 

May 5

Jan. 17 

Mar. 2

Jan. 17 

Mar. 2

Jan. 17 

Mar. 2

Jan. 17 

Mar. 2

Jan. 17 

Mar. 2

Jan. 18 

Mar. 2 

May 3

Discharge

Million 

gallons 

a day

*2.86 

*3.67 

*3.72

*22.9 

*31.0 

*39.8 

*26.8

*19.6 

*26.0 

*16.2

*1.97 

*3.12

*.229 

*.460

*.264 

*.502

*3.31 

*3.43

*4.77 

*5.89

*13.1 

*14.9 

*14.5

Cubic feet 

per 

second

*4.42 

*5.68 

*5.75

*35.4- 

*47.9 

*61.6 

*41.5

*30.4 

*40.3 

*25.1

*3.05 

*4.82

*.354 

*.711

*.409 

*.776

*5.12 

*5.30

*7.38 

*9.11

*20.2 

*23.0 

»22.4

* Base flow.

t Period of record at former gaging station near Kalaupapa.
ISLAND OP MAUI 85

Oheo Stream below diversion dam, near Klpahulu

Location. Lat 20°41'05", long 156°04'10", on left bank Just downstream from old diverslon dam, 2 miles northwest of Klpahulu and 2.5 miles upstream from mouth.

Drainage area. 5.8 sq ml.

Records available. February 1927 to September 1929, December 1931 to June 1956. Publlshed as "at elevation 1,550 ft, near Klpahulu" 1927-29.

Sage. Water-stage recorder. Datum of gage Is 1,546 ft above mean sea level (by vertical 

angles). Prior to Sept. 6, 1929, at site 100 ft upstream at different datum.

Average discharge. 21 years (1927-29, 1932-35, 1940-56), 37.2 mgd (57.6 cfs).

Extremes. Maximum discharge during year, 9,100 mgd (14,100 cfs) Dec. 20 (gage height, 

17.5 ft, from floodmark], from rating curve extended above 750 mgd by critical-depth 

measurement of peak flow and by test on model of station site; minimum, 0.02 mgd 

(0.03 cfs) Oct. 23, 24.

1927-29, 1931-56: Maximum discharge, that of Dec. 20, 1955; no flow at times.

Remarks. Records good except those for period of no gage-height record, which are poor. 

Small diversion below station for domestic supply and livestock.

Revisions (fiscal years). WSP 1155: 1932-35(M) , 1937-40(M).

Rating tables, fiscal year 1955-56 (gage height. In feet, and discharge, 

In million gallons a'day)

July 1 to Dec. 2O

0

.03

.13

.34

.70

1.20

0.6 

.8 

1.0 

1.3 

1.6 

2.0

1.95

4.1

7.5

15.3

27.5

48.5

Note. Same as following 

table above 2.0 ft. 1.3

1.6

Dec.

0.23

.60

1.21

2.1

3.2

5.9

9.7

17.0

28.5

20 to June

2.0

2.5

3.0

4.0

5.0

6.0

8.0

10.0

30

48.5

86

133

255

425

710

1,240

3,700

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

ofs

Ao-ft

July

14.0

1.36

.39

30 .24

8.3

6.3

.84

1.63

14.2

1.67

19.3

117

30.5

43

46

17.4

37

5.5

40

3.35

.92

.54

7.4

65

72

239

271

145

23

63

1,3E4.84

42.7

66.1

4,070

Aug.

6.2

99

217

T4.0

16.4

11.7

2.8

5.7

82

72

67

12.0

3.55

24

20.5

7.4

32

19.0

172

131

10.1

4.9

18.7

46

31.5

33

8.0

2.7

1.20

1Q g 

4. 5

1,186.75

38.3

59.3

3,640

Sept.

32.5

42

9.0

7.6

4.4

1.53

2.35

*3.05

.58

.37

.26

.22

.18

.33

11.5

3.75

.22

.18

.11

725

17.9

27

7.9

1.08

.58

.76

.66

8.6

91

19~.0

294.86

9.83

15.2

905

Oct.'

39.5

25.5

14.2

9.9

84

29

6.8

1.83

.78

.66

.50

2.55

4.5

.48

.31

. .28

.24

.13

.09

.07

.04

.03

753

.11

1.91

.22

6.8

47

30.5

.96

4.1

313.02

10.1

15.6

961

Nov.

1.09

2.95

.28

.24

.13

.08

.07

7TT

.10

25.5

39.5

13.6

1.10

185

28.5

16.6

98

27

13.9

30

202

178

35.5

84

26

28.5

4.3

47

28

459

1,576.05

52.5

81.2

4,840

Dec.

79

137

9.9

3.1

1.41

.97

.70

.54

1.35

.46

.34

.24

.18

.16

.13

.10

.07

.04

.04

"2,200

700

70

10

3.0

1.5

.80

.60

.40

1.0

.60

2.5

3,226. 13

104

161

9,900

Jan.

1.1

.60

.55

.90

.55

.50

.45

.40

10

9.0

1.1

200

500

50

9.0

3.0

1.5

.80

.60

.50

.60

.65

.50

.45

600

70

10

2.5

6.0

6.5

3.5

1,491.25

48.1

74.4

4,580

Feb.

*10

3.15

55

58

3.2

.86

.51

.38

53 .32

155

4.5

2.25

8.9

249

283

326

662

104

180

8.7

4.8

187

682

926

638

363

98

248

5,314.57

183

283

16,310

Mar.

306

41

6.0

6.3

178

93

6.1

4.8

2.9

1.21

.80

.65

.55

.74

.42

.35

71?

18.2

113

11.5

.96

13.4

25.5

36.5

111

64

*164

27

302

108

1,663.90

53.7

83.1

5,110

Apr.

4.8

12.2

*6.5

2.1

.65

.46

769" .38

123

159

72

61

38.5

2.65

26

36

100

4.2

2.55

23

63

9.5

3.4

.92

.65

61

9.6

1.08

4.5

. 86

810.19

27.0

41.8

2,490

May

0.55

.42

.55

.35

740

7.2

95

38

38.5

149

218

168

155

~BT 260

21.5

4.6

13.4

7.2

2.2

.92

*.65

.65

4.9

30

49

16.5

22

54

25

46

1,510.49

48.7

75.4

4,640

June

32.5

101

214

T3

44

31.5

71

31.5

27.5

82

52

186

146

82

19.4

12.2

6.9

7.6

8.4

5.2

1.45

30.5

54

69

8.9

2.2

8.2

10.8

47l~ 1.40

1,424.25

47.5

73.5

4,370

Calendar year 1955. Max 2,200 Mln 0.03 Mean(mgd) 42.8 Mean(ofs) 66.2 Ao-ft 47,980

Fiscal year 1955-56: Max 2,200 Mln 0.03 Mean(mgd) 55.0 Mean(ofs) 85.1 Ac-ft 61,820

Peak discharge (base, 1,600 mgd). --Dec. 20 (3 a.m.) 9,100 mgd (14,100 ofs), 17.5 ft; Feb. 25 

(6:30 p.m.) 3,400 mgd (5,260 ofs), 9.80 ft.

_____ _______ ____________________

* Discharge measurement made on this day.

Note. No gage-height record from Dec. 20 to Feb. 1; discharge estimated on basis of records for 

nearby streams.
86 ISLAND OF MAUI

Right Branch Kahalawe Stream near Kipahulu

Location. Lat 20°41'05", long 156°03'00", on left bank at old ditch intake, 2 miles 

north of Kipahulu.

Records available. February 1927 to April 1937, April 1938 to June 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 885 ft above mean sea 

level (by vertical angles). Prior to Apr. 21, 1938, at same site at datum B ft lower.

Average discharge. 26 years (1927-34, 1935-36, 1938-56), 3.53 mgd (5.46 cfs).

Extremes . Maximum discharge during year, 420 mgd (650 cfs) Feb. 11 (gage height, 

3.67 ft), from rating curve extended above 54 mgd as explained below; minimum, 

0.83 mgd (1.28 cfs) Dec. 18, 19, Jan. 8.

1927-37, 1938-56: Maximum discharge, 2,300 mgd (3,560 cfs) Apr. 29, 1937 (gage 

height, 15.74 ft, datum then in use), from rating curve extended above 54 mgd by test 

on model of station site; minimum, 0.15 mgd (0.23 cfs) Dec. 18, 1929.

Remarks . Records good.

Revisions (fiscal years). WSP 1219: 1935(M) , 1937(M).

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

1.1

1.2

0.62

1.01

1.54

2.3

3.3

4.8

6.8

12.4

28.5

54

99

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

5.0

1.95

1.66

1.66

2.8

2.15

4.7

1.80

2.55

3.1

1.73

4.2

9.7

3.7

2.85

5.4

3.4

3.3

2.1

7.2

2.1

1.80

1.60

T795

4.8

*5.3

10.9

12.8

~f^ 15.8

8.1

141.00

4.55

7.04

433

Aug.

2.55

9.0

9.6

4.6

5.0

3.35

2.2

2.1

5.7

7.6

5.9

2.7

2.2

6.9

3.1

2.4

2.8

5.1

16.1

16.6

3.9

2.55

2.65

3.3

3.8

3.0

2.1

1.95

1.80

5755

2.2

145.80

4.70

7.27

447

Sept.

3.95

6.0

2.85

3.1

4.9

2.1

2.55

6.5

2.05

1.80

1.60

1.54

1.41

1.89

2.95

2.0

1.47

1.41

1.21

T7SS

3.4

4.6

2.35

1.47

1.30

1.41

1.25

2.2

6.7

27?

80.04

2.67

4.13

246

Oct.

3.1

2.6

2.35

8.7

57T

2.6

1.95

1.60

1.47

1.41

1.95

8.0

5.8

1.87

1.60

2.05

2.25

1.35

*1.20

1.15

1.10

1.01

T7I5

1.55

3.25

1.30

2.45

2.6

1.90 1 25

i!so

77.41

2.50

3.87

238

Calendar year 1955. Max 85 Min

Nov.

1.41

4.4

1.41

1.25

1.05

.92

792

1.25

1.20

4.9

7.9

3.75

1.54

4.9

1.66

1.86

7.5

2.85

2.65

2.2

4.7

4.5

2.2

6.9

4.9

13.6

3.7

5.5

3.95

24. 5

129.97

4.33

6.70

399

Dec.

3.55

9.5

2.85

2.3

1.95

1.80

1.66

1.54

3.25

1.54

1.30

1.25

1.10

1.10

1.05

.97

.92

.87

79?

85

22

2.95

1.87

1.54

1.35

1.20

1.10

1.05

2.55

1.41 

4.4

165.88

5.35

8.28

509

Jan.

2.7 1

1.41

1.25

2.25

1.25

1.10

.97

773~ .92

6.8

2.45

11.9

22

2.4

1.66

1.41

1.25

1.10

1.05

1.01

1.15

1.25

1.01

.97

22.5

6.1

2.65

1.41

3.3

3.5

1.87

117.89

3.80

5.88

362

Feb.

5.S

1.73

3.45

2.55

1.47

1.25

1.10

1.01

.97

1674"

23

1.66

1.35

1.46

7.8

7.2

3.9

18.7

3.35

8.3

2.1

2.8

8.4

18.0

27.

16.2

6.2

*3.25

3.45

 

199.55

6.88

10.6

612

Mar.

3.05

2.3

1.95

1.80

10.6

10.2

2.4

2.7

1.95

1.60

1.47

1.35

1.25

1.35

1.20

1.15

T7T5

1.56

3.1

1.35

1.15

2.45

2.45

1.98

2.95

2.15

3.8

1.73

21.5

T570

6,7

116.34

3.75

5.80

357

Apr.

2.05

1.73

*1.47

1.35

1.25

1.15

1.01

T725

2.25

4.1

2.7

3.7

2.0

1.30

1.99

7.5

7.9

1.54

1.56

5.1

14.7 -273-

1.66

1.35

1.20

2.25

1.35

1.59

5.4

1.41

86.09

2.87

4.44

264

May

1.20

1.10

T75T

1.15

1.44

4.6

7.7

8.4

3.5

4.5

9.9

5.6

15.1

T573

4.5

2.65

2.1

6.1

2.45

3.55

1.87

1.60

1.47

1.56

5.0

5.9

2.4

2.3

8.2

3.55

7.1

140.60

4.54

7.02

431

June

4.3

8.6

10.6

"3745

2.95

3.75

6.2

4.9

3.6

4.8

3.5

7.9

7.9

4.9

2.95

2.75

3.2

4.6

3.8

4.0

2.45

6.4

5.3

3.6

2.3

2.05

2.7

2.55

277" 1.95

130.85

4.36

6.75

402

0.87 Hean(mgd) 3.87 Mean(cfs) 5.99 Ac-ft 4,330

Fiscal Fiscal year year 1955-56: 1955-56: Max Max 85 85 Min Min 0.87 0.87 Mean(mgd) Mean(mgd) 4.18 4.18 Hean(cfs) Mean(cfs) 6.47 6.47 Ac-ft Ac-ft 4,700 4,700

Peak discharge (base, 200 mgd). Dec. 20 (9:30 p.m.) 400 mgd (619 cfs), 3.61 ft; Jan. 13 (12:30 a.m.) 

233 mgd (361 cfs), 3.12 ft; Jan. 25 (2:30 a.m.) 248 mgd (384 cfs). 3.13 ft; Feb. 11 (6 a.m.) 

420 mgd (650 cfs), 5.67 ft; Mar. 50 (11:50 p.m.) 205 mgd (514 cfs). 5.00 ft._________________

* Discharge measurement made on this day.
ISLAND OP MAUI 87

Makapipi ditch near Nahlku

Location. Lat 20°48'20", long 156°06'25", on right bank at entrance to tunnel No. 1, 

1.8 miles south of Nahiku and 4.8 miles southeast of Keanae.

Records available.--July 1948 to June 1956.

Gage. Water-stage recorder and Parshall flume. Datura of gage is 1,300 ft above mean sea 

level (by vertical angles).

Average discharge. 8 years, 3.OS mgd (4.72 cfs).

Extremes. 1948-56: Maximum daily discharge, 7.8 mgd (12.1 cfs) Nov. 21, 1951; minimum 

daily, 0.56 mgd (0.87 cfs) Feb. 11, 12, 14, 15, 1953.

Remarks. Records excellent except those for period of no gage-height record, which are 

fair.

Discharge, in million gallons a day, fiscal year- July 1955 to June 1956

Day

1

a

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

Mean:

mgc

cfs

Ac-ft

July

2.7

2.7

2.65

2.65

2.6

2.45

2.4

2.3

2.2

2.1

1.99

2.05

3.6

2.85

2.8

2.9

3.05

3.4

3.55

3.6

3,6

3.7

3.55

3.4 

*3.35

3.25

4.2

5^6

5.2

4.7 

5.6

100.69

3.25

5.03

309

Aug.

lil

5.0

5.2

5.0

4.7

4.3

4.1

3.95

4.6

v 5.1

5.2

5.2

4.6

4.4

4.3

4.1

4.6

4.3

4.3

5.1

4l 6

4.1

3.9

3.9 

3.7

3.6

3.55

3.45

3.35

3 25 

3.2

133.85

4.32

6.68

411

Sept.

3.45

3.55

3.6

3.7

377

3.6

3.55

3.45

3.35

3.1

2.9

2.7

2.6

2.55

2.55

2.35

2.2

2.2

2.05

1.99

1.93

1.93

1.87

1.81 

1.76

1.71

1.71

1.65

1.71

1.71

T6.93

2.56

3.96

236

Oct.

1.65

1.71

1.71

2.1

2.3

2.6

2.9

3.2

3.35

5.4

3.35

3.2

2.9

2.8

2.6

2.45

2.3

*2.15

1.99

1.93

1.81

1.71

1.65

1.60 

1.55

1.50

1.33

1.27

1.34

1.29 

1.17

66.81

2.16

3.34

205

Nov.

1.20

1.03

.99

.97

1.11

1.06

1.06

1.01

.97

1.15

1.06

1.01

.97

1.24

1.20

1.15

1.15

1.20

1.34

1.45

2.75

3.9

3.45

3.4 

3.55

3.75

3.7

3.6

3.55

3.45

57.42

1.91

2.96

176

Dec.

5.55

2!85

2.6

2.4

2.2

2.05

1.93

1.81

1.71

1.65

1.60

1.50

1.45

1.39

1.34

1.29

1.24

1.28

2.95

2.4

2.2

1.87

1.76 

1.71

1.65

1.65

1.6O

1.60

1.65 

3.25

61.03

1.97

3.05

187

Jan.

3.25

3.25

3.1

2.9

2.8

2.65

2.55

2.45

3.15

3.0

2.6

3.15

3.55

3.75

3.6

3.55

3.45

3.45

3.25

2.9

2.7

2.6

2.4

frf

4.7

5.1

775

4.0

4.2

4.1

1O1.25

3.27

5.06

311

Feb.

3.95

3.8

3.75

3.7

3.55

3.35

3.25

3.2

3725

3.2

3.35

3.3

3.7

3.6

3.9

3.7

4.0

4.1

4.3

4.5

4.3

4.1

4.0

5.0 

7.1

7.0

6.9

6.9 *6.9

 

125.65

4.33

6.70

386

Mar.

6.9

675

6.O

5.2

5.0

4.5

4.2

3.95

3.75

3.55

3.4

3.2

3.0

2.9

2.8

2.65

2.6

2.8

2.8

2.65

2.6

177

3.05

3.1 

3.55

3.45

3.75

3.6

4.3 

4.7

4.5

117.65

3.80

5.88

361

Apr.

4.3

5.O

5^

5.2

5.1

4.9

4.7

4.6

4.5

4.4

4.3

4.5

4.6

4.7

4.6

.5

.5

.3

.0

.3

.5

.6

.6

4.3 

3.95

3.9

3.T

3.55

3.25 

5.05

131. 6O

4.39

6.79

404

May

2.9

2.8

2.8

2.7

2._65

3.05

4.9

5.2

5.2

5.6

6.0

6.0

6.0

6.0

6.0

5.6

5.1

4.8

4.6

4.8

4.3

4.2 *3.9

3.8 

3.75

3.6

3.55

3.4

3.25 3 2 z'.z

132.85

4.29

6.64

408

June

5.4

775

5.2

5.2

5.2

5.6

5,6

5.2

5.0

5.2

5.6

5.6

5.6

5.6

5.6

5.2

4.9

4.6

4.3

4.0

3.9

3.9

3.9

4.7 

4.3

3.95

3.8

3.75

3.55

3.55

140.40

4.68

7.24

431

Calendar year 1955: Max 6.5 Min 0.97 Meanfmgd) 3.30 Mean(cfs) 5.11 Ac-ft 3,690

Fiscal year 1955-56: Max 7.1 Min 0.97 Mean(mgd) 3.40 Mean(cfs) 5.26 Ac-ft 3,820

* Discharge measurement made on this day.

Note. No gage-height record Feb. 12-28; discharge estimated on basis of recorded range In stage 

and records from nearby streams.
ISLAND OP MAUI

Hanawi Stream near Nahiku

Location. Lat 20°48'35", long 156°06 r 50", on left bank 200 ft upstream from Koolau ditch 

intake and trail, 1.8 miles southwest of Nahiku, and 4.5 miles southeast of Keanae.

Drainage area. 0.8 sq mi.

Records available. January 1914 to January 1916, November 1921 to June 1956.

Gage. Water-stage recorder. Datum of gage is 1,318 ft above mean sea level (by vertical 

angles). Jan. 9, 1914, to Jan. 6, 1916, at site 50 ft downstream in same pool at datum 

0.12 ft lower.

Average discharge. 34 years (1922-56), IS.Smgd (21.4 cfs).

Extremes.-"-Maximum discharge during year, 1,950 mgd (3,020 cfs) Jan. 26 (gage height, 

8.69 ft), from rating curve extended above 260 mgd as explained below; minimum, 

1.55 mgd (2.40 cfs) Dec. 15, 16.

1914-16, 1921-56: Maximum discharge, about 3,600 mgd (5,570 cfs) Jan. 18, 1916 

(gage height, 11.6 ft at present site), by test on model of station site; minimum, 

1.1 mgd (1.7 cfs) Feb. 19, 20, 1944.

Remarks. Records good. Water used for irrigation in central Maul. 

Revisions (fiscal years). WSP 1045: 1922-43(M).

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

0.2

.3

.4

.5

.7

1.0

1.3

1.6

2.0

1.94

2.6

3.35

5.3

10.1

15.3

21.5

34

2.5 

3.0 

3.5 

4.0 

4.5 

5.0 

5.5 

6.0

125

176

250

370

600

990

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

CfE

Ac-ft

July

4.0

3.35

3.2

5.1

3.45

3.25

2.9

2.7

2.75

3.0

2.6

476

41

8.5

9.1

9.5

6.3

14.3

7.3

9.3

*4.4

3.5

3.1

3.4

6.5

5.5

38

40

25

47*

332.40

10.7

16.6

1,020

Aug.

7.4

8.0

14.0

9.1

7.2

5.6

4.5

6.7

25.5

46

27

12.6

7.7

5.9

8.4

6.7

18.8

7.5

6.1

9.1

5.4

5.0

6.9

21.5

8.8

15.2

8.0

5.7

5.0

5.4

6.0

336.7

10.9

16.9

1,030

Sept.

*13.£

12.0

8.0

6.9

5.3

5.1

4.9

4.1

3.85

3.5

3.35

3.35

3.5

3.8

8.1

4.9

3.8

6.1

4.1

3.35

3.05

3.0

2.8

2.75

2.7

£.75

2.75

3.5

11.0

5.1

151.30

5.04

7.80

464

Oct.

4.3

6.4

6.2

19.3

1470

12.0

6.8

4.8

4.1

3.5

3.35

3.05

£.9

Z.I

2.6

2.55

2.45

2.4

2.4

2.35

2.25

£.2

2.35

2.2

2.25

2.15

2.0

1.94

1.94

1 * 88 "i ofl"

JL. OO

131.19

4.23

6.54

403

Nov.

1.83

1.83

1.77

1.72

1.72

1.66

1.66

1.66

1.66

8.9

2.6

1.94

1.77

3. £5

2.45

£.55

5.4

4.3

4.9

13.3

42

22

8.0

9.5

5.1

3.6

3.35

3.35

2.9

3.3

169.97

5.67

8.77

522

Dec.

2.8

2.6

2.45

2.25

£.2

2.15

£.0

1.94

1.94

1.83

1.83

1.77

1.66

1.66

1.66

1.60

T766

1.94

6.1

552

160

5.8

2.4

2.25

2.0

1.94

1.94

1.94

1.94

2 6

155

711.85

25.0

35.6

2,180

Jan.

56

5.7

2.6

2.4

2.25

2.15

2.O5

2.15

55

6.5

2.55

177

171

6.9

5.55

2.8

2.45

2.25

2.15

£.05

2.0

1.94

1.94

2.0

3.6

~50" 368

6.2

12.7

4.4

4.5

924.38

29.8

46.1

£,840

Feb.

4.5

4.0

54.5

40

5.1

4.5

6.7

9.0

5.6

5.55

6.6

6.1

5.6

5.5

12.3

20.5

62

550

58

140

18.5

27

35

179

618

369

159

51

45

2,241.15

77.5

120

6,880

Mar.

33

T5.3

11.5

11.1

11.8

10.8

10.4

11.5

10.5

8.8

9.0

7.8

7.2

10.9

6.9

6.0

7.8

7.8

5.9

5.1

4.8

15.0

12.0

17.4

15.6

7.£

6.9

6.4

32.5

14.9

547.7

11.2

17.5

1,070

Apr.

35

155

53

11.1

6.4

22. 5

11.9

15.9

74

98

42

38.5

56

8.8

18. £

7.8

7.2

5.1

5.0

55

22

22

10.5

7.0

5.9

5.6

5.0

4.5

4.5 

6.5

757.5

24.6

58.1

2,260

May

5.7

5.5

15.5

6.7

8.5

15.0

60

45

21

24

49

59

37

54

10.8

7.8 *6.5

9.0

12.5

14.8

7.5

5.7

5.2

6.2

7.6

6.9

5.£

4.9

879 

10.0

*

5E3.8

16.9

26.1

1,610

June

15.5

35.5

48

23.5

17.6

18.3

11.7

10.1

12.0

26.5

20.5

81

77

59

18.5

8.8

7.7

7.5

7.5

7.2

6.5

6.9

11.5

28

8.8

7.0

6.5

5.7

5.3 17 g J. / . b

613.8

20.5

51.7

1,880

Calendar year 1955: Max 332 Mln 1.60 Mean(mgd) 16.3 Mean(cfs) 25.2 Ac-ft 18,200

Fiscal year 1955-56: Max 618 Mln 1.60 Mean(mgd) 19.7 Mean(cfs) 30.5 Ac-ft 22,160

Peak discharge 

1,540 mgd (2 

1,950 mgd (5.

IO-OB: max BIB nin i.eo roeanimga; is. i neanicrsj ou.o Ac-rt zi:,ibu

: (base, 850 mgd).--Dec. 20 (3 a.m.) 1,540 mgd (2,380 cfs), 7.71 ftj Dec. 31 (lo p.m.) 

,380 cfs), 7.68 ft; Jan. 12 (8 p.m.) 93O mgd (1,440 cfs), 5.86 ftj Jan. 26 (6:30 p.m.) 

.,020 cfs), 8.69 ft; Feb. 25 (9 p.m.) 1,380 mgd (2,140 cfs), 7.35 ft.

Discharge measurement made on this day
ISLAND OF MAUI 89

Kapaula Stream near Nahiku

Location. Lat 20°48'50", long 156°07'05", on right bank 40 ft upstream from intake to 

Koolau ditch, 300 ft upstream from ditch trail, 1.8 miles southwest of Nahiku, and 

4 miles southeast of Keanae.

Records available.--November 1921 to June 1956.

Gage. Water-stage recorder. Datum of gage is 1,346 ft above mean sea level (by vertical 

angles).

Average discharge. 34 years (1922-56), 10.7 mgd (16.6 cfs).

Extremes. Maximum discharge during year, 1,160 mgd (1,790 cfs) Jan. 26 (gage height, 

6.70 ft), from rating curve extended above 220 mgd as explained below; minimum, 

0.26 mgd (0.40 cfs) Jan. 8.

1921-56: Maximum discharge, 1,780 mgd (2,750 cfs) Apr. 6, 1938 (gage height, 

8.40 ft), from rating curve extended above 220 mgd by logarithmic plotting; minimum, 

0.2 mgd (0.3 cfs) Nov. 23-25, 1933, Oct. 2-5, 1938.

Remarks. Records good. Water used for irrigation in central Maul.

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

0.35

..4

.5

.7

.9 

1.2 

1.4

0.19

.38

1.08

3.35

6.5

13.4

14.7

1.5 

2.0 

2.5 

3.0 

3.5 

4.0

16.8

44

83

140

218

320

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ao-ft

July

2.55

1.86

1.85

3.7

2.25

1.98

1.53

1.42

1.77

1.98

1.64

4.2

37

9.2

9.0

9.3

5.8

11.2

5.6

7.4

*3.15

2.3

1.86

2.1

6.2

5.1

33

35

18.6

9.0

38

275.54

8.89

13.8

846

Aug.

5.7

6.9

10.9

7.2

6.2

4.0

3.0

5.1

23.5

1Z

24.5

10.2

5.6

4.1

6.6

5.0

15.3

7.0

5.1

8.1

3.0

2.65

57T

17.3

7.3

13.0

6.3

3.8

3.0

3.65 

4.6

271.30

8.75

13.5

833

Sept.

*12.6

9.4

6.0

4.7

3.25

3.3

3.0

2.45

1.98

1.75

1.64

1.53

1.86

2.3

7.2

3.6

2.45

5.1

2.75

1.98

1.64

1.42

1.30

1.19

1.08

1.30

1.30

2.35

8.7

5.0

104.12

3.47

5.37

320

Oct.

3.7

6.2

6.2

17.7

13.3

11.5

5.9

3.1

2.65

2.3

2.2

1.75

*1.75

1.42

1.30

1.19

1.08

1.01

1.01

1.01

.94

.94

1.19

1.01

1.19

1.01

.94

.87

.80

.73 

.73

96.62

3.12

4.83

297

Nov.

0.73

.73

.73

.66

.66

.59

.59

.52

759

15.2

2.5

1.01

.80

2.75

1.86

1.98

6.3

3.65

5.6

14.0

34.5

19.2

8.1

8.3

3.45

2.1

1.86

2.3

1.75

2 25

145.26

4.84

7.49

446

Dec.

1.53

1.30

1.08

1.01

.94

.87

.87

.80

.80

.80

.87

.80

.73

.73

.66

.66

.87

1.05

7.5

155

44

5.1

1.98

1.53

1.19

1.01

.94

.87

.90

4.7 

75

296.09

9.55

14.8

909

Jan.

23

1.65

.80

.59

.45

.33

.29

TsT

29

5.4

1.35

85

50

4.6

2.3

1.64

1.30

1.08

.94

.80

.73

.66

.59

.62

4.9

189

15.3

3.3

9.7

2.8 

3.85

442.48

14.3

22.1

1,360

Feb.

2.85

3.95

21.5

23

4.2

3.8

7.6

6.8

2.2

1.85

4.5

5.6

2.45

4.4

10.9

12.8

45

166

35.5

78

14.5

21.5

28

109

288

195

98

50.5

27

 

L,2 52 . 58

45.2

66.8

5,840

Mar.

18.3

8.7

4.5

5.5

4.2

5.0

5.0

5.6

5.8

5.1

4.1

5.5

3.45

8.0

5.8

5.25

5.0

6.2

3.8

3.0

2.65

97T

10.8

12.1

15.9

5.4

4.9

4.0

25

12.0 

3.7

205.55

6.56

10.1

624

Apr.

27

106

"T5.5

8.4

5.95

16.8

10.0

12.2

51

71

31

51

27

6.8

11.5

7.1

5.5

5.25

5.0

26.5

20.5

16.5

8.9

4.1

5.0

2.9

2.45

2.5

1.98

 : 

549.85

18.3

28.5

1,690

May

4.5

4.2

8.1

5.0

6.4

15.5

54

37

17.5

20

56.5

26.5

27.5

31.5

7.6

5.0

5.95

7.4

9.0

12.5

5.0

5.55

2.9

4.1

6.2

4.8

5.0

2.65

6.5

8.0

11.5

394.85

12.7

19.6

1,210

June

9.6

28.5

41

18.0

15.0

15.0

9.8

8.1

9.5

22.5

15.6

62

59

45

15.5

6.6

5.6

5.5

5.2

4.8

5.65

4.5

8.1

21

6.5

3.8

5.25

3.1

2.9

1277

470.90

15.7

24.5

1,450

Calendar year 1955: Max 184 Mln 0.52 Mean(mgd) 11.4 Mean(ofs) 17.6 Ac-ft 12,730

Fiscal seal year year 1955-56: 1955-56: Max Max 288 288 Mln Mln 0.29 0.29 Mean(mgd) Mean(mgd) 12.3 12.5 Mean(ofs) Mean(ofs) 19.0 19.0 Ac-ft Ac-ft 13,820 15,820

:ak discharge (base. 450 mgd). Dec. 20 (2:30 a.m.) 476 mgd (736 cfs), 4.60 ft; Dec. 51 (9:30 p.m.) 

950 mgd (1,470 cfs), 6.06 ftjJan. 26 (6 p.m.) 1,160 mgd (1,790 cfs), 6.70 ft,- Feb. 25 (7 p.m.) 

719 mgd (1,110 ofs),5.37 ft.

* Discharge measurement made on this day.
90 ISLAND OP MAUI

Koolau ditch at Nahiku weir, near Nahiku

Location. Lat 20°48'55", long 156°07'15", on right bank between Kapaula and Waiohue 

Streams, 1.8 miles southwest of Nahiku and 3.8 miles southeast of Keanae.

Records available. February 1919 to June 1956. Gage-height records collected in this 

vicinity since 1904 are contained in files of East Maul Irrigation Co.

Gage. Water-stage recorder and sharp-crested-weir. Datum of gage is 1,289.14 ft above 

mean sea level, datum of 1929. Prior to Apr. 28, 1922, staff gage at same site and 

datum.

Average dlscharg^. 37 years, 21.9 mgd (33.9 cfs).

Extremes. 1919-56: Maximum daily discharge, 60 mgd (93 cfs) Feb. 18, 24, 1956; no flow 

at times.

Remarks. Records excellent. Flow regulated by spillways and gates. Ditch diverts water 

from nearly all streams from the Makapipi west to the Alo. Water used for irrigation 

in central Maul.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cfs

Ac-ft

July

17.5

14.7

14.4

19.6

15.2

14.1

12.7

11.8 TO:

13.0

11.8

17.4

52

31

32.5

32

25.5

40

27

32

20.5

17.2

15.4

15.4

27

24

48

36.5

19.1 39 5 SO*

758.9

24.5

37.9

2,330

Aug.

35

38

46

36.5

34.5

26.5

22.5

25.5

49

54

52

45

34.5

28

34.5

28.5

47

32

31

41

26

22

27

44

31

39.5

27.5

23

19.8

jjTTs"

22^5

1,044.8

33.7

52.1

3,210

Sept.

*43

37

30

27

23

22.5

21

18.7

16.8

15.8

14.7

14.1

14.4

15.1

27

18.7

15.1

21

15.4

13.4

12.4

11.8

11.5

10.8

10.5

10.5

10.5

12.7

27

18 * 7

560.1

18.7

28.9

1,720

Oct.

16.5

22

22

46

42

39.5

26

20.5

18.3

16.5

15.4

14.1

*13.4

12.4

11.8

11.2

10.5

9.9

9.6

9.3

9.0

9.0

9.3

8.8

9.0

8.8

7.9

7.6

7.4

7.1 

6^8

477.6

15.4

23.8

1,470

Nov.

6.8

7.1

6.6

6.3

6.3

6.3

6.1

?a

6.3

26

9.9

7.4

6.6

14.1

10,5

10.2

18.4

15.1

17.7

34

51

52

34.5

36

24.5

19.8

18.0

18.3

15.8

17 9

515.6

17.2

26.6

1,580

Dec.

14.7

13.4

12.1

11.2

10.2

9.6

9.0

8.8

8.2

7.9

7.9

7.6

7.4

7.1

6.8

6.6

6.8

7.4

7.6

li

52

21

12.1

10.8

9.9

9.0

8.8

8.5

7.9

11.1 

44

417.4

13.5

20.9

1,280

Jan.

47

21

16.1

13.7

12.4

11.5

10.5

10.8

48

27.5

15.1

41

54

27

19.1

16.1

14.1

12.4

11.5

10.8

10.2

9.6

9.0

^0

18.8

49

42

22.5

36.5

19!4

684.3

22.1

34.2

2,100

Feb.

17.6

19.5

44

47

21.5

19.5

24.5

28

18.3

16.5

28

26

18.7

25

39.5

50

43

60

57

58

52

54

52

60

57

54

31.5

16.4

1,070.5

36.9

57.1

3,290

Mar.

50

44

34.5

32

37

34.5

32

33

32

28.5

30

26.5

25

34.5

24.5

22.5

25.5

28

24.5

21.5

19.4

27.5

37

39.5

47

30.5

31

26.5

42

44

993.9

32.1

49.7

3,050

Apr.

32

52

52

44

34.5

37

42

34.5

50

*51

50

52

47

39.5

47

37

34.5

26.5

24.5

35

50

44

39.5

30

25.5

24

21.5

19.8

18.7 25 

1,120.0

37.3

57.7

3,440

May

23

22

30.5

24.5

27.5

42

52

50

50

47

50

50

50

50

44

39.5

32.5

37

42

44

32

26.5

24

26.5

32

28.5

23

21^5

30.5

32

42

1,126.0

36.3

56.2

3,460

June

37

47

50

50

50

50

44

44

44

50

47

50

52

50

47

42

37

34.5

32

30.5

26.5

27

37

50

37

29.5

26.5

24.5

23

40

1,209.0

40.3

62.4

3,710

Calendar year 1955: Max 57 Min 6.1 Mean(mgd) 27.3 Mean(cfs) 42.2 Ac-ft 30,570

Fiscal year 1955-56: Max 60 Min 6.1 Mean(mgd) 27.3 Mean(cfs) 42.2 Ac-ft 30,640

* Discharge measurement made on this day.
ISLAND OP MAUI 91

Waiohue Stream near Nahiku

Location. Lat 20°49'05", long 156°07'40", on left bank 200 ft upstream from intake to 

Koolau ditch, 300 ft upstream from ditch trail, 2.2 miles southwest of Nahiku, and 

3.5 miles southeast of Keanae.

Drainage area. 1.5 sq mi.

Records available. October 1921 to June 1956.

Gage. Water-stage recorder.

Average discharge. 34 years (1922-56), 7.62 mgd (11.8 cfs).

Extremes. Maximum discharge during year, 440 mgd (681 cfs) Jan. 26 (gage height, 5.19 ft), 

from rating curve extended above 100 mgd by slope-area determinations at gage heights 

4.57 and 5.60 ft; minimum, 1.92 mgd (2.97 cfs) Jan. 21-24.

1921-56: Maximum discharge, 760 mgd (1,180 cfs) Apr. 7, 1938 (gage height, 6.24 ft), 

from rating curve extended above 50 mgd by logarithmic plotting; minimum, 1.36 nurd 

(2.10 cfs) Oct. 9, 10, 1953.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Water used for irrigation in central Maul.

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

0.5

.6

.7

.8

1.0

1.2

1.61

2.25

3.05

4.1

7.0

11.1

1.4 

1.6 

1.8 

2.0 

2.5 

3.0

16.5

24

33.5

44

76

117

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

3.45

2.95

3.05

4.5

3.25

2.95

2.7

2.65

2.9

3.1

2.8

4.0

16

8.0

7.8

8.0

5.0

9.0

5.0

6.0

4.5

3.5

3.1

3.4

6.0

4.7

14.9

15.0

8.6 

5.8

191.40

6.17

9.55

587

Aug.

4.5

6.3

8.2

6.2

4.9

4.2

3.9

4.8

11.5

14.5

11.7

7.2

4.9

4.5

6.4

4.8

9.0

4.9

5.5

8.5

4.2

4.0

5.8

9.1

5.4

6.9

4.4

3.8

3.7 

4.1

4.2

192.0

6.19

9.58

589

Sept.

9.8

5.6

4.8

4.8

4.0

4.0

*3.9

3.7

3.45

3.35

3.25

3.15

3.25

3.45

6.3

3.8

3.25

4.5

3.25

3.05

2.9

2.8

2.7

2.65

276~5

2.8

2.7

3.05

5.1 

3.7

115.70

3.86

5.97

355

Oct.

3.6

4.3

4.2

~77l 10.5

6.2

4.1

3.55

3.45

3.25

3.35

3.15

3.05

3.05

2.95

2.95

2.9

2.8

2.7

2.65

2.65

2.55

2.7

2.65

2.7

2.65

2.5

2.5

2.4

p -z

£ 3

107.70

3.47

5.57

331

Nov.

2.25

2.25

2.15

2.1

2.1

2.05

2.05

1.98

1798

9.0

2.5

2.15

2.05

3.55

2.7

2.5

3.55

2.95

3.85

6.0

15.6

T76

5.3

6.0

3.7

3.05

3.4

3.55

3.05 

3.55

115.51

3.85

5.96

354

Dec.

2.9

2.7

2.65

2.65

2.55

2.5

2.5

2.4

2.3

2.3

2.3

2.25

2.15

2.1

2.05

2.05

2.2

2.5

5.0

50

15

3.0

2.6

2.5

2.4

2.4

2.3

2.2

2.4 

4.5

30

167.35

5.40

8.36

514

Jan.

10

2.6

2.3

2.15

2.05

1.98

1.98

2.25

16.4

3.85

2.5

35

17.9

2.9

2.55

2.3

2.15

2.1

2.05

1.98

1.98

1.92

1.92

1.98

2.9

100

6.0

2.95

7.8 

2.95

3.15

250.54

8. OS

12.5

769

Feb.

2.9

3.05

10.0

8.8

2.9

3.2

6.9

4.8

2.7

2.65

3.45

7.5

2.95

4.8

6.9

8.5

17.5

62

13.3

28.5

8.0

10.3

12.9

49

117

80

*41

15.9

15.8

553.20

19.1

29.6

1,700

Mar.

12.2

7.2

5.9

5.3

5.6

4.8

4.5

4.2

4.1

3.8

4.2

3.55

3.6

5.7

3.55

3.45

3.9

5.5

3.9

3.45

3.15 675~

6.2

7.3

9.7

4.6

5.0

4.4

14.8 

6.7

4.0

170.75

5.51

8.53

524

Apr.

16.0

49

13.5

6.2

4.6

10.9

7.0

7.5

21

26

13.5

14.9

12.1

5.4

7.4

6.0

5.7

4.4

4.2

15.1

13.0

10.3

6.3

4.5

4.0

4.0

3.7

3.55

3.35

6.7

309.80

10.3

15.9

951

May

4.4

4.1

6.4

4.5

5.0

10.9

32.5

18.2

11.8

14.0

16.2

13.7

14.9

15.7

6.4

5.6

5.1

8.1

7.0

9.1

5.0

4.5

*4.3

5.9

7.1

5.4

4.2

4.1

6.2 

6.6

7.3

274.2

8.85

13.7

841

June

6.7

13.4

17.1

9.6

9.2

10.7

6.5

7.5

7.9

12.6

9.8

25.5

23

18.7

9.3

6.0

6.2

6; 2

5.9

5.6

4.9

5.3

7.7

12.5

5.3

4.8

4.5

4.5

1*1

279.8

9.33

14.4

859

Calendar year 1955: Max 77 Mln 1.98 Mean(mgd) 6.95 Mean(cfs) 10.8 Ac-ft 7,790

Fiscal year 1955-56: Max 117 Mln 1.-92 Mean(mgd) 7.45 Mean(cfs) 11.5 Ac-ft 8,370

Peak discharge (base, 300 mgd). Jan. 26 (6:30 p.m.) 440 mgd (681 efs), 5.19 ft; Feb. 25 (6:30 p.m.) 

420 mgd (650 efs) 5.08 ft._________________________________________________________

* Discharge measurement made on this day.

Note. No gage-height record July 10-25, Dec. 17 to Jan. 3; discharge estimated on basis of records for nearby streams.

5Z7571 O-59 -7
92 ISLAND OP MA.UI

West Koplllula Stream near Keanae

Location. Lat 20°49'10", long 156°08 I 15", on left bank 600 ft upstream from Koolau ditch 

crossing and highway bridge and 3 miles southeast of Keanae Post Office.

Drainage area. 3.9 sq ml.

Records available.--January 1914 to September 1917, October 1921 to June 1956.

Gage. Water-stage recorder. Datum of gage Is 1,292.30 ft above mean sea level, datum of 

1929. Prior to Dec. 9, 1935, at several sites within 200 ft of present site at various 

datums.

Average discharge. 34 years (1915-17, 1922-34, 1936-56), 17.8 mgd (27.5 cfs).

Extremes. Maximum discharge during year, 1,760 mgd (2,720 cfs) Feb. 25 (gage height,

6.28 ft), from rating curve extended above 75 mgd as explained below; minimum, 1.06 mgd 

(1.64 cfs) Dec. 16, 17.

1914-17, 1921-56: Maximum discharge, 5,050 mgd (7,810 cfs) Jan. 26, 1948 (gage 

height, about 9.5 ft), from rating curve extended above 75 mgd by logarithmic plotting; 

minimum, 0.6 mgd (0.9 cfs) Sept. 15-17, 1917.

Remarks.--Records good except those above 50 mgd and those for periods of no gage-height 

record, which are poor. Water used for Irrigation in central Maul.

Revisions (fiscal years). WSP 755: 1931-32.

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

-0.1 

0.0

0.60

1.20

10.9

19.2

1.3 

1.7 

2.1 

2.5 

3.0 

4.0

109

165

260

550

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

rage

cfs

Ac-ft

July

2.65

2.2

2.3

5.0

2.4

2.3

1.90

1.81

2.1

2.4

1.90

5.2

30.5

9.9

11.0

11.2

7.3

12.6

7.5

8.8

4.0

5.05

2.55

3.15

*7.5

6.7

27.5

28

19.4

11.1

39_

282.91

9.13

14.1

868

Aug.

8.9

9.0

12.4

8.8

7.1

5.2

4.4

7.5

25

51

20.5

13.9

8.6

6.1

8.9

6.7

18.6

8.6

6.8

8.4

4.5

4.4

iT7o~

18^7

10.3

16.4

10.0

6.5

5.2

5.6

6.8

325.8

10.4

16.1

994

Sept.

15.8

HB 9

8.1

6.3

5.0

4.6

4.2

5.6

5.15

2.9

2.75

2.65 '.0

3.75

9.2

5.4

5.6

8.2

4.2

5.15

2.65

2.55

2.3

2.3

2.2

2.4

2.65

3.85

11.9

6,2

149.45

4.98

7.71

459

Oct.

5.5

8.1

8.5

19.1

1575

14.1

8.6

5.4

4.4

5.6

3.45

4.2

3.6

2.9

2.55

2.5

2.5

*2.1

2.2

2.1

2.1

2.0

2.3

2.1

2.3

2.0

1.81

1.72

1.63

1 54

1. 54

141.54

4.57

7.07

434

Nov.

1.54

1.45

1.45

1.36

1.36

1.28

T728

1.28

1.28

26

3.75

1.90

1.45

2.9

2.55

2.65

8.1

5.1

6.6

18.9

27.5

TsTo

9.5

9.8

5.0

5.6

5.6

3.05

2.4

2 75

177,18

5.91

9.14

544

Dec.

2.3

2.0

1.90

1.72

1.63

1.54

1.45

1.45

1.36

1.56

1.63

1.54

1.36

1.20

1.20

1.13

T75T

1.72

13.1

562

93

11.0

5.0

3.6

2.65

2.4

2.55

2.2

2.1

2.4

70

620.06

20.0

30.9

1,900

Jan.

40 , 6.01

3.25

2.4

2.5

1.90

1.81

2.2

26.5

7.6

3.6

202

105

11.1

5.6

3.9

5.5

2.4

2.1

1.90

1.65

1.54

1.4

T75

5.5

350

25

4.0

11

3.5

5.0

842.95

27.2

42.1

2,590

Feb.

4.0

3.8

30

37

6.8

5.5

4.8

4.1

3.0

2.9

6.0

15

4.0

5.0

10

18

50

300

50

120

17

25

31

150

550

320

100

51

19.9

1,925.8

66.5

103

5,900

Mar.

15.2

10.2

7.7

6.5

6.3

5.4

4.8

5.4

5.2

4.0

4.6

4.4

3.8

9.1

4.2

3.6

5.9

4.8

4.0

5.45

3.15

9.1

9.8

12.6

12.9

5.4

4.5

4.5

17.5 

TlTT

215.50

6.95

10.8

661

Apr.

28.5

113

"27.5

13.1

7.3

18.8

12.6

14.6

55

70

28.5

25

28.5

11.4

14.9

9.1

7.9

5.8

5.4

24.5

19.0

19.7

12.6

*7.9

6.3

5.8

5.2

5.2

iil

8.0

615.3

20.5

31.7

1,890

May

7.6

8.2

11.2

7.3

9.8

14.4

40

ST. 5

19.0

17.8

54.5

22.5

21.5

28.0

11.4

8.1

6.5

9.6

12.5

15.2

7.3

5.9

5.2

6.0

7.3

5.8

4.2

472

8.4

10.4

12.1

411.2

15.3

20.6

1,260

June

11.3

25

33.5

19.6

15.6

15.4

10.4

9.4

10.6

19.7

15.6

60

5?

43

18.7

10.9

8.9

7.7

7.1

6.3

5.6

6.1

9.7

18.5

7.1

5.4

4.5

4.4

5.9

15.8

486.7

16.2

25.1

1,490

Calendar year 1955. Max 382 Mln 1.15 Meanfmgd) 14.2 Mean(cfs) 22.0 Ac-ft 15,940

Fiscal year 1955-56 : Max 550 Mln 1.15 Mean(mgd) 16.9 Mean(cfs) 26.1 Ac-ft 18,990

Peak discharge (base, 1,000 mgd) Dec. 20 (3:50 a.m.) 1,180 mgd (1,850 cfs), 5.57 ftj Dec. 51 

(10 p.m.) 1,120 mgd (1,730 cfs), 5.52 ft; Feb. 25 (time unknown) 1,760 mgd (2,720 efs), 6.26 ft.

* Discharge measurement made on this day.

Note. No gage-height record Jan. 1-3, Jan. 23 to Feb. 27; discharge estimated on basis of records 

for East Wallualkl and Hanawl Streams and recorded range In stage.
ISLAND OF MAUI 93

East Wallualki Stream near Keanae

Location. Lat 20°49'05", long 156°08'25", on left bank 1,000 ft upstream from Koolau 

ditch crossing and trail and 3 miles southeast of Keanae Post Office.

Drainage area. 3.7 sq mi.

Records available. December 1913 to October 1917, July 1922 to June 1956.

Gage. Water-stage recorder. Datum of gage is 1,329 ft above mean sea level (by vertical 

angles). Dec. 21, 1913, to Oct. 23, 1917, at site 50 ft downstream.

Average discharge.--36 years (1915-17, 1922-56), 19.8 mgd (30.6 cfs).

Extremes. Maximum discharge during year, 2,080 mgd (3,220 cfs) Feb. 25 (gage height, 

8.20 ft), from rating curve extended above 310 mgd as explained below; minimum, 

1.42 mgd {2.20 cfs) Nov. 9, Dec. 16.

1913-17, 1922-56: Maximum discharge, 3,060 mgd (4,730 cfs) Apr. 6, 1938 (gage 

height, 9.26 ft), from rating curve extended above 310 mgd by logarithmic plotting; 

minimum, 0.85 mgd (1.32 cfs) Oct. 10, 1953.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Water used for irrigation in central Maul.

Rating tables, fiscal year 1955-56 (gage height, in feet, and discharge, 

In million gallons a day)

July 1 to Feb. 25 Feb. 26 to June 30

0.4

.6

.9

1.2

1.5

2.0

2.5

1.37

2.5

4.9

9.1

15.1

29.5

52

3.0 

3.5 

4.0 

4.5 

5.0 

5.5

138

213

310

425

570

0.5 

.6 

.7

1.46

1.94

2.5

3.2

4.9

1.2 

1.5 

2.0 

2.5

Note. Same as preceding 

table above 2.5 ft.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

4.4

3.7

3.8

9.5

4.1

3.7

3.3

3.05

3745

3.9

3.35

11.4

60

12.8

14.6

14.3

9.0

20

10.4

12.3

5.5

4.5

4.0

5.1

12.9

10.2

52

51

31.5

14.0

71

472.75

15.2

23.5

1,450

Aug.

10.8

12.1

20

12.9

9.3

7.1

6.0

11.6

40

ii

33.5

22

11.4

7.8

12.8

9.2

26

10.0

8.2

11.7

6.1

5.7

1T79-

30.5

12.4

21.5

10.9

7.1

6.1

7.1

9.0

474.7

15.3

23.7

1,460

Sept.

22.5

rsrr

9.5

8.0

6.1

5.9

*5.6

4.7

4.4

4.0

4.0

3.85

6.0

5.8

13.8

5.9

4.2

9.4

4.7

4.0

3.6

3.3

3.15

2.9

2.85

3.35

3.85

5.9

17.5

7.1

200.95

6.70

10.4

617

Oct.

6.1

9.1

9.0

31

25.5

16.6

8.5

5.7

5.0

4.3

4.2

4.0

3,9

3.35

3.2

3.15

3.0

2.85

2.85

2.7

2.55

2.65

2.9

2.55

3.0

2.55

2.25

2.15

2.0

1 96 

l!90

175.46

5.66

8.76

538

Nov.

1.90

1.90

1.79

1.74

1.64

1.64

1.64

1.58

1.53

43

4.5

2.25

1.85

3.4

3.3

3.05

10.0

5.6

12.6

22.5

47

2f

9.6

13.5

5.4

3.85

3.95

3.8

3.15

3.5

244.16

8.14

12.6

749

Dec.

2.7

2.5

2.3

2.2

2.1

2.0

1.96

1.9

1.85

1.85

2.2

2.15

1.79

1.64

1.53

1.48 27T2.4

12.1

284

84

11.8

4.6

3.35

2.7

2.4

2.3

2.0

2.0

3.55

46

497.85

16.1

24.9

1,530

Jan.

27

4.2

3.0

2.5

2.2

1.96

1.90

?775

a60

a7.0

a4.0

a240 airo

alO

a6.0

a4.5 *3.3

2.85

2.65

2.45

2.3

2.2

2.0

2.1

4.8

167

13.6

4.8

17.3

4.5

6.6

725.46

23.4

36.2

2,230

Feb.

5.0

4.7

34

48

9.4

8.0

7.3

6.2

3.6

5.0

6.0

22

4.9

7.7

15.0

15.2

63

352

80

154

26.5

31

35.5

141

640

404

153

55

31.5

2,366.5

81.6

126

7,260

Mar.

18.8

11.5

8.5

7.0

6.9

5.7

5.6

5.8

5.4

4.5

5.4

4.5

4.3

11.4

4.4

4.0

676

5.4

4.2

3.85

3.45

15.5

11.8

19.1

18.7

5.7

5.0

5.5

30.5

TS79"

5 2

267.10

8.62

13.3

820

Apr.

45

TS- 205

15.4

7.6

32

15.4

20.5

81

116

50

45

40

11.5

21.5

9.8

8.9

6.4

6.0

45

31.5

28.5

13.4

7.8

6.1

5.8

5.3

4.7

4.4

10.6

945.1

31.5

48.7

2,900

May

8.0

9.6

13.4

7.5

11.4

20

86

lo

27

28

53

41

38

45

11.3

8.4

7.3

13.1

16.3

19.5

8.1

6.3

*5.7

7.9

9.7

7.1

5.2

5.0

12.0

12.2

14.9

617.9

19.9

30.8

1,900

June

15.7

44

60

29

22

23

12.5

11.9

14.3

33.5

23

~98 102

71

25.5

11.3

9.8

8.5

7.9

7.4

sa

7.0

14.2

34.5

7.8

6.3

5.7

5.4

5.1

24.5

745.9

24.9

38.5

2,290

Calendar year 1955. Max 354 Min 1.48 Mean(mgd) 19.3 Mean(cfs) 29.9 Ac-ft 21,590

Fiscal year 1955-56: Max 640 Min 1.48 Mean(mgd) 21.1 Mean(cfs) 32.6 Ac-ft 23,700

Peak discharge (base, 600 mgd). Dec. 20 (2 a 

800 mgd (1,240 efs], 6.10 ft} Jan. 26 (7 P 

930 mgd (1,440 ofs), 6.40 ft; Feb. 25 (8 p 

640 mgd (990 cfs), 5.67 ft._____

a.m.) 1,080 mgd (1,670 cfs), 6.66 ft} Dec. 31 (10 p.m.) 

.m.) 1,030 mgd (1,590 cfs), 6.60 ftj Feb. 18 (2:30 p.m.) 

.m.) 2,080 mgd (3,220 cfs), 8.20 ftj Apr. 2 (2 a.m.)

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for West Walluaiki Stream.
94 ISLAND OP MAUI

West Wailuaiki Stream near Keanae

Location. Lat 20°49'20", long 156°08'35", on left bank 500 ft upstream from Koolau ditch 

crossing and trail bridge and 2.8 miles south of Keanae Post Office.

Drainage area. 3.6 sq mi.

Records available. January 1914 to October 1917, November 1921 to June 1956.

Gage.--Water-stage recorder. Datum of gage is 1,343.6 ft above mean sea level (by vertical angles).

Average discharge. 34 years (1922-56), 24.1 mgd (37.3 cfs).

Extremes. Maximum discharge during year, 2,340 mgd (3,620 cfs) Feb. 25 (gage height, 

9.88 ft), from rating curve extended above 420 mgd as explained below; minimum, 

1.31 mgd (2.03 cfs) Nov. 9.

1914-17, 1921-56: Maximum discharge, 4,500 mgd (6,960 cfs) Jan. 14, 1923 (gage 

height, about 13.5 ft, from floodmarks). from rating curve extended above 420 mgd by 

logarithmic plotting; minimum, 0.3 mgd (0.5 cfs) July 26, 1922.

Remarks.--Records good. Water used for irrigation in central Maul.

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, in million gallons a day)

1.0 

1.2 

1.4 

1.8 

2.2

1.20

2.4

4.0

6.3

9.5

14.2

29.5

51

2.6 

3.0 

3.5 

4.0 

5.0 

6.0 

7.0

81

121

185

270

510

835

1,190

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

3.95

3.3

3.35

7.9

3.65

3.85

3.0

2.75

2,9

3.6

2.9

8.3

68

14.3

14.1

13.8

8.8

17.3

10.1

10.6

5.7

4.7

4.2

5.3

11.3

10.0

58

57

35

14.2

ocOD

497.85

16.1

24.9

1,530

Aug.

11.6

11.5

18.7

11.9

8.8

7.2

6.2

10.1

43

65_

37

21

10.5

8.1

10.8

8.3

29.5

9.7

8.1

9.5

6.2

5.7

14T5

30

13.0

20

11.2

7.5

6.3

6.8

8.6

476.3

15.4

23.8

1,460

Sept.

19.3

1376

9.0

7.5

6.2

5.8

5.4

4.7

4.3

4.1

3.85

3.65

5.8

5.6

11.5

5.8

4.3

7.9

5.3

4.4

3.85

3.6

3.3

3.15

2.9

3.5

4.0

5.7

16.1

7.0

191.10

6.37

9.86

586

Oct.

6.0

8.7

8.5

312"0".5

17.5

9.4

6.9

5.9

5.0

5.3

6.0

5.5

4.7

4.0

3.65

3.3

3.05

3.0

*2.85

2.7

2.7

3.0

2.7

2.9

2.6

2.25

2.25

2.05

2.0

187.77

6.06

9.38

576

Nov.

1.80

1.87

1.80

1.69

1.58

1.52

1.47

1.42

T742

54

5.3

2.75

2.2

3.0

3.2

3.3

8.1

4.9

11.9

25

45

22.5

9.7

12.4

5.9

4.6

4.4

4.0

3.25

3.4

253.37

8.45

13.1

778

Dec.

2.9

2.6

2.3

2.25

2.1

2.05

2.05

2.2

2.05

2.0

2.9

2.7

2.0

1.74

1.69

1.58 274"

2.75

9.4

585

96

12

5.7

4.4

3.65

3.3

3.25

2,75

2.55

3.35

14.4

586.01

18.9

29.2

1,800

Jan.

22.5

4.2

3.3

2.85

2.6

2.3

2.25

3715

49

9.8

5.0

225

112

11.6

6.6

5.2

4.4

3.75

*3.4

3.15

2.9

2.85

2.7

2.6

4.9

115

11.2

5.6

14.7

5.2

656.60

21.2

32.8

2,020

Feb.

6.0

5.7

47

61

9.7

8.5

7.4

6.7

4.7

4.4

7.2

21

5.8

7.1

13.4

13.1

62

485

100

198

27.5

38

32

144

866

585

156

68

36

3,026.2

104

161

9,290

Mar.

19.6

12.9

9.9

8.3

7.8

6.9

6.3

6.3

6.0

5.3

5.9

5.2

5.0

11.3

5.2

4.7

6.9

5.9

5.0

4.5

4.2

1574

12.6

19.6

19.0

7.0

6.0

5.9

28.5

15.0

288.8

9.32

14.4

886

Apr.

46

~BTf 218

19.8

9.9

31.5

19.8

24.5

98

135

59

52

54

15.2

24.5

12.2

10.5

8.1

7.4

47

34.5

32.5

16.5

9.3

7.6

7.4

6.8

5.9

5.6

iTT?

1,085.7

36.2

56.0

3,330

May

9.2

10.9

14.5

9.2

12.5

20

89

7T

36.5

29.5

57

46

42

51

13.9

10.1

8,5

14.6

17,3

19.7

*9.6

7.8

6.9

8.3

9.6

7.6

5.9

5.7

1T73

13.3

14.3

682.7

22.0

34.0

2,100

June

16.8

48

72

35.5

24

23.5

13.1

11.5

14.7

36

26.5

116

114

82

31.5

13.9

11.3

9.5

8.8

8.1

7.0

7.5

13.1

31

8.6

7.2

6.3

5.9

5.7

832.0

27.7

42.9

2,550

Calendar year 1955. Max 435 Min 1.42 Mean(mgd) 21.4 Mean(cfs) 33.1 Ac-ft 23,950

Fiscal year 1955-56: Max 866 Mln 1.42 Mean(mgd) 23.9 Mean(cfs) 37.0 Ac-ft 26,910

Peak discharge (base, 1,200 mgd). Dec. 20 (2:30 a.m.) 1,500 mgd (2,320 cfs), 7.78 ft; Feb. 18 

(2:30 p.m.) 1,340 mgd (2,070 cfs), 7.37 ftj Feb. 25 (8:30 p.m.) 2,340 mgd (3,620 cfs), 9.88 ft.

* Discharge measurement made on this day.
ISLAND OF MAUI 95

West Wailuanui Stream near Keanae

Location. Lat 20°49'40", long 156°08'55", on left bank 150 ft upstream from Koolau ditch 

crossing and intake and 2.2 miles south of Keanae Post Office.

Drainage area. 0.7 sq mi.

Records available.--December 1913 to May 1917, July 1922 to June 1956.

Gage. Water-stage recorder and Columbus-type control. Altitude of gage is 1,268 ft 

(from topographic map). Dec. 19, 1913, to May 22, 1917, water-stage recorder at site 

100 ft downstream at different datum.

Average discharge. 34 years (1922-56), 9.00 mgd (13.9 cfs).

Extremes.--Maximum discharge during year, 830-mgd (1,280 cfs) Feb. 25 (gage height, 

5.76 ft), from rating curve extended above 130 mgd; minimum, 0.61 mgd (0.94 cfs)

Nov. 7-9.

1913-17, 1922-56: Maximum discharge, 1,730 mgd (2,680 cfs) Jan. 25, 1948 

height, 7.32 ft), from rating curve extended above 130 mgd; minimum, 0.2 mgd 

July 16-21, 1922.

cfs)

Remarks. Records good except those for period of no gage-height record, which are fair. 

Water used for irrigation of sugarcane in central Maul.

Rating table, fiscal year 1955-56 (gage height, in feet, and 

discharge, in million gallons a day)

.9

1.0

1.1

1.2

1.4 

1.6

0.61

.91

1.28

1.77

2.6

3.9

7.7

13.5

1.8 

2.0 

2.3 

2.6 

3.0 

3.5 

4.0

22.5

35.5

60

93

151

245

355

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

Day

I

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 

3O

31

Total

Mean:

mgc

Cf£

Ac-ft

July

1.72

1.52

1.61

4.7

2.6

1.96

1.42

1.28

T742

1.77

1.37

4.3

20

5.1

6.5

5.3

3.9

8.3

4.5

4.5

2.3

1.89

1.72

2.3

7.5

5.4

16.7

17.9

9.6

6.7 

32

187.78

6.06

9.38

576

A*ag.

6.1 7V.4

9.9

6.8

4.4

3.5

2.85

5.0

12.9

19.0

14.3

10.0

4.9

3.6

6.1

4.1

8.6

4.2

4.1

5.9

2.7

2.4

477

8.3

5.6

6.6

4.1

2.95

2.6

2 95 sie

190.15

6.13

9.48

584

Sept.

12.6 "579

3.9

3.35

2.5

2.3

2.2

1.83

*1.70

1.57

1.47

1.42

2.05

2.05

6.0

2.2

1.67

4.0

1.83

1.62

1.42

1.32

1.28

1.20

1.16

1.28

1.42

1.89

4.4

2.3

79.83

2.66

4.12

245

Oct.

2.1

3.6

3.55

12.4 -673"

6.7

3.35

2.4

2.1

1.83

1.89

1.89

1.89

1.62

1.47

1.42

1.32

1.24

.20

.16

.08

.12

.20

1.12

1.12

1.00

.94

.91

.84

7ST

70.98

2.29

3.54

218

Nov.

0.78

.78

.75

.72

.69

.66

.63

.61

7M

20.5

1.84

1.08 '.91

1.39

1.47

1.24

3.75

1.77

5.8

4.7

16.8

8.2

4.7

7.1

2.5

1.83

1.83

1.77

1.47

1. 67

98.60

3.29

5.09

303

Dec.

1.32

1.20

1.16

1.08

1.04

1.00

.97

.94

.91

.91

1.04

.97

.84

.78

.75

.72

1719"

1.00

15.6

149

48

7.1

2.1

1.62

1.32

1.20

1.12

KOO

1.00

1.40 

6.8

255.08

8.23

12.7

783

Jan.

3.95

1.32

1.16

1.04

1.00

.94

794

1.49

17.5

3.65

1.67

90

57

6.9

2.85

.89

.62

.42

* .28

.20

.12

.08

.04

1.04

1.62

51

4.1

2.5

10.0

2.05 

2.85

277.22

8.94

13.8

851

Feb.

1.96

1.96

23

31

5.3

5.3

6.3

4.3

2.5

1.83

2.2

12.5

2.4

4.-1

6.9

8.2

22

189

52

95

15.1

13.8

14.8

61

500

185

66

28.5

15.3

1,177.55

40.6

62.8

3,610

Mar.

7.1

5.7

4.4

3.6

3.35

2.7

2.4

2.2

2.1

1.77

1.96

1.67

1.83

4.7

1.77

1.57

2.1

2.8

1.96

1.57

1.42 573^

5.0

7.2

10.1

2.95

2.6

2.4

15.4 

g_3 2.*5

117.42

3.79

5.86

360

Apr.

19.4

78

*24

9.4

4.4

15.1

7.2

6.3

26

46

22.5

19.3

15.6

6.7

9.3

6.2

5.2

3.5

2.95

17.3

16.3

11.7

6.7

3.9

3.1

2.7

2.5

2.1

1.96

___ 1__

400.71

13.4

20.7

1,230

May

3.6

4.1

6.2

3.2

4.5

11.5

42

K.5

15.4

15.6

18.3

18.0

16.4

17.8

6.3

4.7

3.6

8.5

8.5

9.6

4.1

3.2

2.85

4.6

6.1

3.9

2.5

2.5

en:

6.6

6.6

291.35

9.40

14.5

894

June

6.6

14.2

22.5

13.2

11.1

13.1

6.7

6.3

7.5

13.0

8.4

35.5

38

2T

13.3

6.7

5.7

4.7

4.2

3.75

a2.5

a3.6

a6.6

a!4

a4.5

a3.4

a2.8

a2.5

a2.3

all

308.65

10.3

15.9

947

Calendar year 1955: Max 154 Min 0.61 Mean(mgd) 8.48 Meanfcfs) 13.1 Ac-ft 9,490

Fiscal year 1955-56: Max 300 Min 0.61 Mean(mgd) 9.44 Mean(cfs) 14.6 Ac-ft 10,600

Peak discharge (base, 300 mgd). Dec. 20 (3 a.m.) 580 mgd (897 cfa), 4.92 ft,- Feb. 18 (2:30 p.m.) 

405 mgd (627 efs), 4.24 ft; Feb. 25 (8 p.m.) 830 mgd (1,280 cfs), 5.76 ft._________________

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for nearby streams.
96 ISLAND OF MAUI

East Wailuanui Stream near Keanae

Location. Lat 20°49'25", long 156°08'40", on left bank 125 ft upstream from Koolau ditch 

intake, 250 ft upstream from trail, and 2.5 miles south of Keanae.

Drainage area. 0.6 sq mi.

Records available. January 1914 to October 1917, November 1921 to June 1956.

Gage. Water-stage recorder. Datum of gage is 1,287 ft above mean sea level (by vertical 

angles). Jan. 1, 1914, to Oct. 23, 1917, at site 500 ft upstream at different datum.

Average discharge. 34 years (1922-56), 5.58 mgd (8.63 cfs).

Extremes. Maximum discharge during year, 390 mgd (603 cfs) Feb. 25 (gage height, 3.98 ft), 

from rating curve extended above 100 mgd; minimum, 0.45 mgd (0.70 cfs) Nov. 9.

1914-17, 1921-56: Maximum discharge, 1,050 mgd (1,620 cfs) Feb. 12, 1925 (gage 

height, 6.96 ft), from rating curve extended above 100 mgd; minimum, 0.1 mgd (0.2 cfs) 

Apr. 11, 1926.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Water used for irrigation in central Maul.

Rating table, fiscal year 1955-56 (gage height, in feet, and 

discharge, in million gallons a day)

0.3 

.4

.5 

.6

0.33

.89

2.05

3.8

9.1

1.1 

1.5 

2.0 

2.5 

3.0

140

210

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

3O 

31

Total

Mean:

mgc

Cf£

Ac-ft

July

2.05

1.77

1.70

4.8

1.77

1.51

1.39

1. 27

1.51

1.77

1.39

3.65

15.6

3.4

6.1

4.6

3.55

8.9

4.1

4.6

2.35

2.05

1.77

2.1

7.3

4.8

14.9

14.3

6.8

5.4

18 .3

155.50

5.02

7.77

477

Aug.

3.45

5.6

9.6

5.9

3.9

2.85

2.55

4.8

9.3

15.2

12.5

8.9

3.9

3.05

5.5

3.6

6.8

3.25

3.5

5.6

2.7

2.35

4.0

6.5

5.1

5.2

3.05

2.35

2.25

2.55 

3.15

158 . 95

5.13

7.94

488

Sept.

~57o 12.3

3.4

3.25

2.35

2.2

2.05

1.77

1.63

1.51

1.39

1.27

2.05

1.91

5.4

2.05

1.51

3.45

1.63

1.27

1.17

1.07

1.07

.97

.89

1.07

1.17

1.81

3.65

1.91

72.17

2.41

3.73

221

Oct.

1.92

3.0

3.15

11.9

5.3

5.2

2.55

1.91

1.77

1.51

1.51

1.39

1.27

1.17

1.07

.97

.89

.89

.81

*.81

.89

.89

1.O7

.89

.89

.81

.73

.73

.67

.67

.67

57.90

1.87

2.89

178

Nov.

0.61

.61

.61

.55

.55

.55

.49

.49

.49

6.9

.89

.67

.61

1.22

1.27

1.07

3.6

1.93

6.0

3.75

"874 17.9

4.3

7.4

2.55

1.91

1.77

1.77

1.51

1.63

82.00

2.73

4.22

252

Dec.

1.27

1.17

1.07

.97

.89

.89

.89

.81

.81

.73

.89

.81

.73

.67

.67

.61

1.13

.99

1.58

14.7

5.5

1.63

1.17

1.07

.89

.89

.81

.73

.73

1.59

54.19

1.75

2.71

166

Jan.

4.3

1.27

1.07

.97

.89

.81

781

1.18

16.7

3.4

1.63

14.6

7.6

1.91

1.51

1.27

1.17

1.07

.97

.97

.89

.89

.81

.97

1.39

60

4.2

3.65

9.1

2.0

2.7

150.70

4.86

7.52

462

Feb.

1.9

1.9

18

24

5.O

4.8

5.5

3.5

2.3

1.7

2.0

10

2.2

3.8

5.0

6.0

18

100

36

70

11

10

11

40

150

100

44

2O

10

717.6

24.7

38.2

2,200

Mar.

5.5

*4.0

3.25

2.7

2.55

2.2

2.05

1.91

1.77

1.63

1.63

1.39

1.53

3.7

1.63

1.39

1.93

2.4

1.63

1.39

1.27 478~~

4.3

6.7

10.3

2.85

2.35

2.35

15.8

5.1 2 35

104.35

3.37

5.21

320

Apr.

13.7

52

12.3

4.1

2.7

12.7

4.6

4.1

7.8

21.5

11.4

15.6

5.3

3.4

7.3

4.4

4.0

2.55

2.2

14.2

13.0

7.5

4.1

2.7

2.2

2.05

1.91

1.63

1. 51

ITsT

247.95

8.26

12.8

761

May

2.85

3.45

5.2

2.55

3.75

11.6

39

20.5

12.2

14.6

13.2

16.8

15.4

14.2

4.2

3.25

2.85

7.5

7.2

9.9

3.6

2.7

472~ 2.35

5.2

3.25

2.55

2.45

5.3

7.1

254.70

8.22

12.7

782

June

5.9

12.8

14.9

9.8

10.2

13.1

5.8

5.8

7.2

12.2

8.7

17.3

16.1

13.9

6.6

4.0

3.8

3.4

3.25

3.25

2.7

3.05

6.6

13.8

3.4

2.85

2.55

2.35

2,2

iTTe

229.10

7.64

11.8

7O3

Calendar year 1955: Max 63 Min 0.49 Meanfmgd) 4.82 Mean(ofs) 7.46 Ac-ft 5,400

Fiscal year 1955-56: Max 150 Min 0.49 Mean(mgd) 6.24 Mean(ofs) 9.65 Ao-ft 7,010

Peak discharge (base, 300 mgd).--Jan. 26 (6 p.m.) 350 mgd (542 cfs), 3.75 ft; Feb. 25 (time unknown) 

590 mgd (605 cfs), 5.98 ft._________________________________________________________

* Discharge measurement made on this day.

Note. No gage-height record Jan. 30 to Mar. 2; discharge estimated on basis of records for West 

Wailuanui, East and West Wailualki Streams.
ISLAND OP MAUI 97

Taro patch feeder ditch at Keanae

Location. Lat 20°51'40", long 156°09'00", on left bank 25 ft downstream from intake,

500 ft downstream from highway bridge over Palauhulu Stream at Keanae, 4.2 miles northwest of Nahiku, and 4.8 miles southeast of Kailua.

Records available. September 1934 to June 1956.

Gage. Water-stage recorder and Parshall flume.

Average discharge. 21 years (1935-56), 2.26 mgd (3.50 cfs).

Extremes.--1934-56: Maximum daily discharge, 7.9 mgd (12.2 efs) June 30, 1941, Feb. 10 

1955; minimum daily, 0.05 mgd (0.08 cfs) Mar. 5, 1939.

Remarks. Records excellent except those for period of no gage-height record, which are 

good. Ditch diverts water from Palauhulu Stream, 80 ft above station, for irrigation 

of taro lands at Keanae.

Discharge, in million gallons a. day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

1.95

1.90

1.85

2.05

1.85

1.80

1.75

1.71

1.71

1.71

1.66 

1.90

3.25 

2.05

2.1

2.1

1.90

2.3

1.99

1.95

1.80

1.75

1.71

1.66

1.99

1.90 

3.0

3.05

2.45

1, 99

5.5

64.08

2.07

5.20

197

Aug.

2.1

2.5

2.5

2.15

2.1

1.90

1.99

2.2

2.9

3.5

2.7 

2.5

1.90 

1.85

1.85

1.80

2.25

1.90

1.90

2.05

1.85

1.80

1.85

2.3

1.85

2.05 

1.90

2.1

2.1

2.1

2.1

65.94

2.15

5.50

202

Sept.

2.55 275~

2.05

1.99

1.95

1.85

1.80

1.80

1.80

1.80

1.75 

1.75

1.75 

1.75

1.85

1.75

1.66

1.80

1.71

1.61

*1.57

1.57

1.52

1.61

1.80

1.80 

1.80

1.80

1.99

1. 80

54.55

1.82

2.82

167

Oct.

1.80

1.80

1.80

2.55

2.5

2.2

a2.0

al.9

al.9

al.8

al.8 

al.7

1.71 

1.71

1.71

1.71

1.71

1.75

1.90

1.90

1.90

1.90

1.90

1.85

1.90

1.90

1.85

1.85

1.85

1. 85

1. 85

58.25

1.88

2.91

179

Nov.

1.85

1.85

1.85

1.85

1.90

1.90

1.90

1.90

1.90

2.7

1.90 

1.95

1.95

1.95

1.95

1.95

1.95

1.95

2.15

2.4

^9

2.6

2.1

2.15

1.95

1.90 

1.90

1.90

1.90

1.95

60.95

2.05

5.14

187

Dec.

1.90

1.90

1.90

1.90

1.85

1.85

1.85

1.85

1.85

1.85

1.85 

1.80

1.80 

1.80

1.80

1.80

1.80

1.80

1.75

5.5

2.55

1.90

1.80

1.85

1.80

1.85 

1.90

1.90

1.95

1 * 99

2*8

60.69

1.96

5.05

186

Jan.

2.25

2.05

1.99

1.99

1.99

1.99

1.99

1.99

5.55

2.5

2.05

4.1

5.75 

2.5

2.05

1.99

1.99

1.95

1795

1.99

1.99

2.05

1.99

2.05

2.5

4^6 

3.05

2.55

5.0

2 45 

2. 45

74.49

2.40

5.71

229

Feb.

2.55

5.05

5.0

5.1

2.45

2.55

2.7

5.55

2.6

2.45

2.4 

5.15

2.6 

2.7

5.05

5.05

5.9

il

5.75

5.2

5.0

5.4

5.15

6.4

6.8

5.15 

*5.1

2.5

1.90

98.60

5.40

5.26

505

Mar.

1.71

1.66

1.61

1.57

1.61

1.90

1.85

1.80

1.75

1.66

1.66 

1.61

1.57 

1.66

1.57

1.52

2.5

2.5

2.5

2.45

2.4

2.65

2.55

2.65

2.75

2.55 

2.5

2.5

2.8

2 " 5

64.06

2.07

3.20

197

Apr.

2.65

^2

2.8

2.25

2.1

2.5

2.35

2.2

2.8

3.6

2.9 

2.9

2.65 

2.25

2.55

2.3

2.55

2.2

2.15

2.7

2.75

2.4

2.3

2.2

2.15

2.15 

2.1

2.1

2.05 

g ^5

75.75

2.52

3.90

232

May

2.15

2.1

2.5

2.15

2.2

2.5

il

5.15

2.8

2.6

2.95 

5.0

2.9 

2.95

2.4

2.55

2.5

2.4

2.55

2.55

2.5

2.15

2.15

2.15

2.25

2.15 

2.1

2.05

2.2

2 " 35

76.15

2.46

3.81

234

June

*2.35

2.65

5.0

2.65

2.6

2.6

2.55 2.5

2.3

2.7

2.5 

3.25

2/95

2.55

2.3

2.5

2.5

2.25

2.15

2.1

2.1

2.25

2.65

2.15

2.1 

2.1

2.05

1.99 

2'. 5

75.44

2.45

5.79

225

Calendar year 1955: Max 7.9 Mln 1.39 Mean(mgd) 2.41 Mean(cfs) 3.73 Ac-ft 2,7OO 

Fiscal year 1955-56: Max 7.8 Mln 1.52 Mean(mgd) 2.26 Mean(cfs) 3.50 Ac-ft 2,540

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for nearby stations and recorded 

range In stage.
98 ISLAND OF MAUI

Koolau ditch near Keanae

Location. Lat 20°49'55", long 156°10'30", on right bank on west side of Keanae Valley, 

2.8 miles southwest of Keanae Post Office and 5.1 miles southeast of Kailua.

Records available. January 1910 to December 1912, November 1917 to June 1956. Gageheight records collected in this vicinity since 1904 are contained in files of East 

Maul Irrigation Co.

Gage. Water-stage recorder. Jan. 1, 1910, to Dee. 31, 1912, staff gage at same site and 

Saturn.

Average discharge. 38 years (1918-56), 67.0 mgd (104 efs).

Extremes.--1910-12. 1917-56: Maximum daily discharge, 172 mgd (266 efs)'Apr. 19, 1935; 

no flow at times.

Remarks. Records good. Flow regulated by gates and spillwaye. Ditch diverts water at 

altitude 1,200 ft from nearly all streams from the Makapipi west to the Alo for power 

and irrigation in central Maul. No diversion above station except from several 

spillways.

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

Day

1

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

3O

31

Total

Mean:

mgc

cfs

Ac-ft

July

47

39

36

74

45

39

33

31

33

41

33

69

142

110

117

112

86

118

96

100

58

47

43

48

97

95

128

131

106 

126

132

2,412

77.8

120

7,400

Aug.

110

113

127

105

103

79

63

87

*137

133

132

132

108

83

109

90

135

98

88

113

67

63

100

128

102

125

95

71

58

76

3,099

100

155

9,510

Sept.

132

T25

92

83

63

63

58

49

45

41

39

37

52

49

102

58

43

81

47

41

*36

33

33

31

29.5

31

35

47

100

63

___ _-__

1,738.5

58.0

89.7

5,340

Oct.

52

83

80

138

134

126

82

58

51

45

47

47

41

37

35

33

31

29.5

29.5

28

26

26

29.5

28

28

26

24.5

23

23

21. 5

fits

1,484.0

47.9

74.1

4,550

Nov.

20

2O

20

18.7

18.7

18.7

18.2

17.4

17.4

108

37

24.5

20

39

33

31

73

51

64

121

138

158

102

112

62

47

45

45

39

44

_______

1,542.6

51.4

79.5

4,730

Dec .

35

31

29.5

28

26

24.5

24.5

23

23

21.5

26

23

21.5

20

18.7

18.7

23

24.5

23

137

117

58

39

33

28

26

26

23

21.5 

27

97

1,096.9

35.4

54.8

3,370

Jan.

108

47

37

31

28

26

24.5

28.5

*127

89

43

97

119

60

53

43

37

33

31

28

26

26

24.5

23

54

120

77

57

102 

51

67

1,717.5

55.4

S5.7

5,270

Feb.

53

56

123

136

77

60

72

85

48

43

68

87

56

74

124

129

105

125

122

128

127

137

*133

125

125

139

119

91

137

2,904

100

155

8,910

Mar.

136

123

98

83

91

75

71

72

69

58

67

56

54

103

56

49

69

65

59

49

45

75

107

117

133

78

77

68

115 

116

73

2,507

80.9

125

7,690

Apr.

85

125

127

128

92

100

126

109

131

127

127

1Z7

132

122

134

115

105

75

67

91

132

135

128

91

71

67

58

53

49

3,107

104

161

9,540

May

85

S5

110

83

95

133

125

127

131

134

134

129

131

131

130

109

91

104

128

158

100

75

67

79

113

89

63

56

105 

110

130

3,320

107

166

10,190

June

114

132

131

137

142

136

133

127

131

135

136

125

127

127

137

126

112

104

95

91

75

82

109

139

98

79

67

67

58

126

3,398

113

175

10,430

Calendar year 1955: Max 142 Mln 17.4 Meanfmgd) 74.3 Mean(cfs) 115 Ac-ft 83,270

Fiscal year 1955-56 : Max 142 Mln 17.4 Mean(mgd) 77.4 Mean(cfs) 12O Ac-ft 86,930

Discharge measurement made on this day.
ISLAND OP MAUI 99

Honomanu Stream near Keanae

Location . Lat 20°50'10", long 156°11'15", on left bank at Spreekels ditch intake, 3 miles 

southwest of Keanae and 4.5 miles southeast of Kailua.

Drainage area. --3. 3 sq mi.

Records available. November 1913 to June 1956.

Ga^e. Water-stage recorder, orifice and concrete control. November 1913 to Apr. 14, 1950, 

at site 500 ft upstream at different datum.

Average discharge. --40 years (1916-56), 15.1 mgd (23.4 cfs).

Extremes . Maximum and minimum discharges for the fiscal years 1950-56 are contained in 

the following table:

year

1950t

1951

1952

1953

1954

1955

1956

Maximum

Date

Nov. 25, 1950

Feb. 19, 1952

Mar. 4, 1953

Apr. 18, 1954

Dec. 10, 1954

Feb. 25, 1956

Discharge

(mgd)

420

1,090

1,090

420

980

2,310

(cfs)

650

1,690

1,690

650

1,520

3,570

Gage height 

(feet?

7.64

8.97

8.97

7.60

8.84

10.73

Minimum

Date

June 2 , 1951

Oct. 18, 1951

Feb. 6,11,12,

1953

Oct. 10, 1953

Nov. 25, 28,

1954

Dec. 19, 1955

Discharge

(mgd)

aO.60

.38

a. 25

.15

a. 38

.43

(cfs)

0.93

.59

.39

.23

.59

.66

t Station destroyed by landslide; maximum and minimum not determined, 

a Minimum daily.

1913-56: Maximum discharge, 2,310 mgd (3,570 cfs) Feb. 25, 1956 (gage height, 10.73 

ft), from rating curve extended above 13 mgd by computation of flow through orifice and 

over dam; minimum, 0.08 mgd (0.12 cfs ) Mar. 24, 1928.

Remarks. Records good except those above 13 mgd after Apr. 14, 1950, and those for periods 

of no gage-height record, which are poor. Water used for irrigation in central Maui.

Discharge, In million gallons a day, fiscal year July 1949 to June 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

15

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean:

mgc

CfE

Ac-ft

July

0.92 iO~

2.85

1.58

1.92

6.7

6.6

2.6

3.35

1.90

8.3

9.5

10.8

6.6

31.5

8.1

5.0

5.1

3.35

2.35

2.95

2.35

2.1

3.05

10.7

105

31

4.6

21 

14.0

10.1

337.97

10.9

16.9

1,040

Aug.

19.7

7.9

5.0

3.7

3.3

3.3

2.45

3.3

5.1

20

12.8

5.5

4.1

3.7

5.3

5.1

5.3

12.2

11.3

15.0

7.2

9.7

5.7

7.9

9.3

4.1

3.45

2.85

2.35 

2.1

1.97

210.67

6.80

10.5

647

Sept.

1.76

1.64

1.52

1.46

1.35

1.46

1.15

.99

.92

1.40

1.07

2.75

6^0

2.5

4.0

2.6

1.8

1.3

1.1

1.0

.90

2.5

1.7

1.1

1.2

1.0

1.0

.90

.86 

« 80

49.73

1.66

2.57

153

Oct.

0.74

.68

.64

173- .60

1.6

5.0

2.2

2.4

8.0

3.0

9.0

578

4.0

2.2

2.0

1.7

1.6

1.8

1.5

1.3

1.2

1.1

1.2

1.0

.90

1.0

.90

.72 

.66

.63

69.37

2.24

3.47

213

Nov.

4.0

2.3

2.0

60 1.5

9.0

5.6

5.0

4.0

3.5

4.5

50

30

12

7.0

21

25

16

10

5.0

3.5

3.0

2.7

2.5

2.0

17

35

16

27

80

466.1

15.5

24.0

1,430

Dec.

60

45

50

15

6.0

4.5

3.5

3.0

2.5

2.1

1.9

2.1

14

11

4.0

9.0

4.0

3.5

3.2

3.0

2.3

1.8

1.5

1.3

1.2

2.5

10

11

10 

20

7.0

315.9

10.2

15.8

969

Jan.

4.0

40

9.0

4.5

3.0

2.5

2.2

1.9

1.6

1.4

12

10

3.0

1.7

1.4

1.2

1.1

1.0

.90

.82

.80

.78

1.1

1.0

.90

.74

.70

475~ .66

8.0

2.2

124.60

4.02

6.22

382

Feb.

2.5

2.7

1.7

1.0

.90

.86

.92

.86

.80

.76

1.0

2.0

25

3.3

3.0

5.0

35

90

T.O

7.0

30

70

13

7.0

4.5

2.8

2.2

5.2

328.00

11.7

18.1

1,010

Mar.

2.5

1.7

1.5

1.3

1.1

25

2.7

1.5

1.3

40

30

6.6

4.0

3.0

2.0

1.6

1.3

1.1

1.0

110

160

16

14

70

35

7.0

9.0

15

150

50

25

790.2

25.5

39.5

2,430

Apr.

22

10

5.6

5.0

4.8

11

9.6

5.0

5.4

27

56

19

30

9.0

5.4

8.2

14.4

15.8

86

16.0

8.2

13.3

74

53

13.0

12.7

88

120

30

29

806.4

26.9

41.6

2,470

May

22

16

11

22.5

11.5

12.1

28

58

31.5

29.5

29.5

11.2

10.3

5.4

4.9

12

16.7

69

12.8

29

18.3

9.0

24

45

29

29.5

16.4

6.4

*5.2

4.0

5.5

631.2

20.4

31.6

1,940

June

6.2

6.7

6.4

4.0

3.1

3.5

2.7

34.5

9.6

7.4

7.1

4.0

3.1

2.6

2.35

2.15

2.5

1.90

2705

2.55

3.8

4.6

8.8

8.7

9.8

11.0

4.9

5.4

4.0

2 5

177.90

5.93

9.18

546

Calendar year 1949. Max 124 Mln 0.53 Mean(mgd) 7.88 Mean(cfs) 12.2 Ac-ft 8,830

Fiscal year 1949-50: Max 160 Mln 0.60 Mean(mgd) 11.8 Mean(cfs) 18.3 Ac-ft 13,230

Peak discharge (base, 700 mgd). No peak above base.

* Discharge measurement made on this day.

Note. No gage-height record Sept. 15 to Oct. 28, Nov. 1 to Apr. 14 when landslide destroyed 

station.
100 ISLAND OP MAUI

Honoraanu Stream near Keanae Continued 

Discharge, in million gallons a day, fiscal year July 195O to June 1951

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

Mean:

mgc

Cf£

Ac-ft

July

7.5

4.4

2.5 H5

5.7

3.1

3.1

7.7

64

19.6 *4.4

4.0

3.1

2.5

3.35

4.4

2.7

14.3

63

17.9

14.8

13.6

25.5

14.0

5.4

5.4

11.6

8.8

8.6

4.4

357.60

11.5

17.8

1,100

Aug.

4.3

10.6

4.9

4.0 

2.7

7.8

10.7

3.5

3.1

2.6

3.1

3.1

12.1

235

57

5.4

12.8

9.1

3.1

4.1

2.45

1.98

1.77

1.70

1.77

1^58

2.15

1.64

1.70 2 45

2 . 85

421.04

13.6

21.0

1,290

Sept.

4.9

3.45

1.77

1.38 

1.58

1.90

2.7

16.4

50

28

12.7

4.0

3.5

5.1

2.45

2.05

1.70

1.58

1.44

1.38

1.44

1.38

1.19

1.14

1.14

 1.14

1.19

1.03

TToa X 32 . i.

160.03

5.33

8.25

491

Oct.

1.25

2.35

1.14

.97 

1476-

8.7

3.5

9.9

13.6

2.5

4.8

2.7

1.77

1.44

5.4

2.7

1.44

1.25

1.25

1.08

1.14

1.25

2.7

-8.8 29

11.6

4.9

2.5

2.45 

7.4

3.5

157.58

5.08

7.86

484

Nov.

1.90

1.58

1.51

4.3 

2.05

1.51

1.38

572^ 1.25

8.2

11.2

8.2

3.5

2.15

4.2

8.2

7.6

3.1

7.0

9.4

4.0

2.2

1.77

1.58

215

190

20

8.2

4.4 

4.0

540.58

18.0

27.9

1,660

Dec.

8.2

22

11.0

16.7 

15.8

90

70

27.5

6.4

46

35

59

31.5

6.8

4.4

3.8

3.2

2.6

2.2

1.9

1.7

1.6

1.5

12' tl,4

25

70

50

150

9.0

816. 2

216.4

40.8

2J510

Jan.

7.0

5.0

4.0

3.5 

5.2

5.6

3.0

5.5

8.0

5.0

5.4

4.0

3.0

100

100

140 -IT

6.0

4.5

4.0

3.5

5.6

11

6.0

4.0

3.5

5.5

2.7

2.4

2.2

2^0

471.9

15.2

25.5

1,450

Feb.

1.8

1.9

1.8

1.5 

2.5

1.8

1.4

1.2

1.1

1.0

10 .97

70

40

50

52

42

150

60

20

17

21

8.0

5.5

4.0

4.5

5.5

7.0

565.47

20.1

51.1

1,750

Mar.

15

8.0

6.0

5.0 

9.0

8.5

5.5

3.6

3.1

3.0

2.6

2.4

5.0-

20

5.5

9.5

7.4

28

12.1

4.4

4.0

22

4.0

5.5

5.4,

3.5 3.5'

2.45

2.5

is!?

224.55

7.24

11.2

689

Apr.

38

16.0

4.9

4.0

6.1

5.7

6.4

4.0

3.5

4.0

4.9

5.9

4.0

2.5

2.5

5.7

4.8

6.7

3.1

3.5

3.1

5.1

7.5

5.4

5.4

3.1

2.7

2.7

3.1

2 35

170.25

5.68

8.79

522

May

*1.70

1.51

2.15

1.58 

1.58

2.95

3.5

2.3

1.68

2.45

1.44

1.25

1.14

1.03

.97

.97

12.5

8.2

2.45

3.1

2.6

1.58

1.32

1.19

1.08

1.19

1.19

.97

.97

. 86

.75

67.95

2.19

3.39

209

June

0.69

780" .60

.69 

12.2

2.85

1.58

.97

1.15

19.3

12.9

34.5

7.6

3.5

2.15

2.05

2.05

2.05

2.3

*1.67

1.19

1.08

1.71

30

4.0

2.5

1.98

1.58

1.38

X* 58

158.40

5.28

8.17

486

Calendar year 1950. Max 235 Min 0.66 Mean(mgd) 14.6 Mean(cfs) 22.6 Ac-ft 16,310

Fiscal year 1950-51: Max 235 Min 0.60 Mean(mgd) 11.3 Mean(cfs) 17.5 Ac-ft 12,620

Peak discharge (base, 700 mgd). Ho peak above base.

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

Mean:

mgc

Cf£

Ac-ft

July

1.44

1.19

175?

1.38

3.35

30

12.5

5.1

2.05

5.55

4.0

2.15

5.8

5.6

2.7

1.98

4.5

2.15

4.2

5.8

2.5

2.15

1.90

2.6

1.84

2.55

2.4

12.9

18.8

42

12.0

200.00

6.45

9.98

614

Aug.

5.9

4.4

5.1

6.0

21

80

"19 110

17

8.0

5.5

5.0

4.6

4.0

5.5

5.8

2.5

1.8

1.7

10

5.0

3.0

2.9

7.0

25

4.0

3.0

3.5

5.2

4.0

14

391.4

12.6

19.5

1,200

Sept.

13

4.0

3.5

5.1

4.2

24

26

TT

4.0

5.0

2.7

2.5

2.3

2.0

1.7

1.6 *1.5

1.38

1.25

1.14

1.08

1.03

.97

.86

1753

1.14

1.84

1.38

3.1

1.70

128.00

4.27

6.61

393

Oct.

1.44

1.38

.97

.69

.60

.69

1.08

.97

1.14

.86

.60

1.00

5.4

1.44

.86

.60

.51

756- .43

15.8

8.4

3.0

10.7

2.65

1.70

1.38

2.5

2.1

7.3

"872 23 5 

106.45

3.43

5.31

327

Nov.

*2.25

2.05

1.51

1.19

3.3

5.7

12.5

16.5

9.3

3.1

2.35

2.1

2.7

4.2

3.95

3.55

5.1

7.1

60

89.

58.5

12.4

6.4

5.4

4.4

50

22.5

12.5

5.4

4.0

576.95

12.6

19.5

1,160

Dec.

4.0

5.1

2.7

5.1

3.1

2.45

2.3

2.2

1.98

1.77

86

69

7.4

4.9

3.5

3.5

2.5

2.15

1.90

2.5

1.84

1.58

2.15

1.84

1.84

1.44

2.7

8.8

27.5

17.1 

25.5

302 . 54

9.75

15.1

928

Jan.

5.9

3.5

18.3

16.8

6.4

3.5

3.1

2.55

5.1

5.1

10.2

9.1

9.5

11.1

7.7

4.4

3.1

2.6

12.4

52.

5.2

3.5

2.6

2.7

2.7

2.15

2.05

2.05

*1.92

4Ta~ 1.58

219.40

7.08

11.0

673

Feb.

47

8.5

3.1

2.5

3.5

2.2

1.90

1.70

2.9

3.5

2.75

1.90

8.5

5.6

2.2

1.70

5.8

4.0

103

35.5

5.4

5.5

27.5

25

6.3

4.0

2.7

2.45

2.6

323.20

11.1

17.2

992

Mar.

2.05 276~

6.8

64

56

12.6

24

77

86

70

52

49

54

27.5

11.6

7.4

6.4

6.4

4.9

4.0

3.5

3.5

4.9

3.1

3.1

2.7

42

14.5

4.0

5.1 

5.1

711.55

23.0

35.6

2,180

Apr.

4.0

11.0

5.4

4.0

13.9

8.8

8.8

8.2

5.4

6.4

4.0

4.0

35

12.8

4.9

4.0

3.1 37T

3.1

21

17.2

4.9

20

4.4

7.0

4.4

54

9.5

5.2

25

522.5

10.8

16.7

990

May

44

7.2

46

25.5

51

56.5

9.5

4.9

4.4

4.0

4.0

5.5

4.7

4.4

4.9

5.4

5.4

21.5

53

8.9

4.0

4.6

4.0

5.1

3.5

3.1

3.5

4.4

4.0

4.0 

5.5

370.2

11.9

18.4

1,140

June

3.1

2.7

2.3

27T

28

12.2

4.4

4.0

15,6

10.9

6.4

10.2

10.2

6.4

9.0

*6.5

4.4

14.8

10.8

9.5

10.9

6.4

6.0

7.4

6.4

4.0

14.0

7.6

18.6

12.9

266.3

8.88

13.7

817

Calendar year 1951. Max 140 Min 0.43 Mean(mgd) 8.66 Mean(cfs) 13.4 Ac-ft 9,710

Fiscal year 1951-52: Max 110 Min 0.43 Mean(mgd) 10.2 Mean(cfs) 15.8 Ac-ft 11,410

Peak discharge (base, 700 mgd). Feb. 19 (7:50 p.m.) 1,090 mgd (1,690 cfs), 6.97 ft.________

* Discharge measurement made on this day.

Note. Ho gage-height record Aug. 6 to Sept. 17j discharge estimated on basis of records for 

Waiakamoi and Puohokamoa Streams.
ISLAND OF MAUI

Honomanu Stream near Keanae Continued 

Discharge, in million gallons a day, fiscal year July 1952 to June 1953

101

Day

1

a

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

Mean:

mgc

Cf£

Ac-ft

July

5.4

4.0

3.5

4.1

12.0

4.4

3.1

10.3

37

6.8

4.0

3.5

2.7

53

21

12.0

35.5

27.5

4.9

4.0

3.1

7.5

4.3

3.1

3.5

6.4

6.7

3.5

3.1

3.1

3.5

356.5

11.5

17.8

1,090

Aug.

12.8

4.4

2.6

*2.15

1.90

2.05

6.0

4.6

31,1

8.0

4.0

4.0

3.0

2.0

4.0

4.0

3.5

2.0

1.6

1.4

1.4

1.2

1.1

1.0

270

23

13

2.0

2.0

1.0

3.0

156.20

5.04

7.80

479

Sept.

3.0

2.0

4.0

2.0

1.0

14

6.0

3.0

20

11

4.0

4.0

36

10

4.0

3.0

9.0

9.0

3.0

2.3

1.9

1.7

1.5

1.3

1.2

1.2

1.1

1.1

1.0

1.0

163.3

5.44

8.42

501

Oct.

1.0

T70

2.0

65

5.0

2.0

1.5

1.2

1.2

1.0

3.0

7.0

2.5

1.7

1.3

1.0

' 1.0

10

50

20

28

17

42

44

14

30

8.0

4.0

12

48

67

492.4

15.9

24.6

1,510

Nov.

46

57

39

11.6

5.9

4.4

4.0

3.5

21.5

65

lil

31

47

49

29

64

8.2

5.4

23.5

9.9

6.4

4.0

4.4

3.5

5.1

3.5

6.5

34

27

55

783.3

26.1

40.4

2,400

Dec.

20.5

25

6.4

51

15.

52

68

23

33.5

23

5.4

*4.9

4.0

3.5

3.5

3.1

8.7

46

4.9

3.5

3.1

3.1

2.7

6.0

3.1

3.1

2.2

1.98

1.90

1.70

1J34_

495.42

16.0

24.8

1,520

Jan.

1.58

TTsT

1.38

1.32

1.25

1.19

1.19

1.14

1.03

.97

.91

.86

.80

.80

.75

.69

.65

.65

.60

.60

.56

.51

.60

.91

.56

.47

*.47

.43

.51

.43

^34

25.66

0.828

1.28

79

Feb.

0.34

.29

.29

.29

.29

.25

738

.34

.34

.29

.25

.25

1.35

2.85

1.70

6.6

2.9

5.2

8.6

2725

3.4

3.25

3.1

4.3

2.3

1.98

6.2

7.7

-

67.28

2.40

3.71

206

Mar.

4.4

3.1

1.70

163

"38.5

4.4

3.5

3.5

11.1

35.5

10.3

4.0

2.7

6.5

9.5

4.4

2.7

11.8

4.0

2.7

2.15

1.98

1.84

1.70

4.1

11.1

3.5

2.45

1.77

T Rft

rrf

361.17

11.7

18.1

1,110

Apr.

1.58

1.25

1.19

1.25

1.19

1.03

.91

.80

.75

1.74

7.7

2735

1.44

2.3

1.58

1.84

4.5

7.0

2.75

1.77

1.98

1.51

1.14

.97

.86

.75

.69

5.5

1.98

1.70

62.00

2.07

3.20

190

May

2.75

10.4

61

154 ~14".8

44

27

13.7

5.4

4.0

3.1

2.5

2.15

1.90

1.90

2.05

3.1

1.90

3.65

6.4

3.5

2.2

2.15

275^ 1.77

6.0

4.7

7.2

6.3

3.5 

4.0

411.82

13.3

20.6

1,260

June

3.5

2.45

1.98

1.84

1.58

1.44

1.25

1.44

3.85

5.7

7.0

8.7

3.5

3.5

9.8

7.9

3.5

11.0

7 . 1

3.5

2.7

6.9

6.1

10.3

*3.7

3.1

2.05

1.70

2.2

2.05

131.33

4.38

6.78

403

Calendar year 1952. Max 111 Mln 1.0 Mean(mgd) 12.7 Mean(cfs) 19.6 Ac-ft 14,290

Fiscal year 1952-53: Max 163 Mln 0.25 Mean(mgd) 9.61 Mean(cfs) 14.9 Ac-ft 10,750

* Discharge measurement made on this day.

Note. No gage-height record Aug. 10 to Oct. 30j discharge estimated on basis of records 

nearby stations.

Discharge, in million gallons a day, fiscal year July 1955 to June 1954

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

Mean:

mgd

cfa

Ac-ft

July

1.64

2.05

12.0

23.5

4.9

3.1

2.35

1.98

1.77

1.51

1.44

TTrT

1.44

7.2

2.7

1.77

1.70

1.84

3.1

1.90

1.58

2.15

1.70

1.58

1.51

2.7

4.4

4.0

3.5 

4.9

4.4

112.08

3.62

5.60

344

Aug.

7.3

74

13.5

5.4

4.4

*10.5

7.7

3.1

3.5

2.6

2.15

3.8

9.2

5.4

4.0

2.7

2.15

1.90

1.98

1.70

1.58

10.0

4.1

4.4

4.0

2.15

1.64

1.51

1.25 1 08

199.72

6.44

9.96

613

Sept.

1.03

1.08

1.68

2.3

1.38

1.03

.86

1.99

1.14

2.45

1.14

.80

.80

.91

.69

.56

.51

.47

.43

.51

.80

*.56

.47

.38

_._54

.38

.34

.43

2.65

 frr_

34.21

1.14

1.76

105

Oct.

2.05

1.32

.75

.56

.60

.47

.34

.29

.25

.21

.43

1.38

1.14

.47

.38

65

Tf.6

2.7

1.58

1.19

.97

.86

1.38

.91

.69

.69

5.4

1.51

.86

1.51 

1.58

115.07

3.71

5.74

353

Nov.

1.70

2.65

3.2

1.51

3.35

1.44

1.58

2.6

6.4

3.1

6.8

1.77

1.25

1.08

T732

10.1

36.5

4.0

33.5

6.4

2.7

1.90

1.64

21.5

46_

6.3

3.1

2.5

2.05

1.90

219.84

7.33

11.3

675

Dec.

4.9

8.6

15.4

5.4

14.6

28.5

6.4

4.4

4.9

3.5

3.5

3.1

2.3

1.98

1.77

1.64

1.44

1.44

1.38

1.19

12.4

6.1

1.98

1.51

1.32

1.19

9.0

4.0

3.75

1.77 

2.6

161 . 96

5.22

8.08

497

Jan.

4.6

1.90

1.44

1.19

156

7.5

5.4

5.0

2.7

1.90

1.58

1.67

1.90

2.3

2.3

1.38

1.19

1.03

.97

.91

.86

.86

.80

.69

.69

.65

*.60

.60

.56

75*

210.19

6.78

10.5

645

Feb.

0.47

.47

.43

.38

.43

.43

.34

.29

.25

725

1.00

9.0

1.19

.65

.51

.43

.38

.29

.25

.47

.56

.34

.38

.51

14.2

19.9

3.3

1.38

-

 

58.48

2.09

3.23

179

Mar.

2.4

16.4

36.5

67

115

21.5

27

22

26.5

42

*26

21.5

6.1

4.0

3.5

3.1

5.5

9.6

4.9

5.1

5.3

4.4

4.0

3.1

2.2

2.15

2.65

2.05

1.70 

1.58

1.51

490.24

15.8

24.4

1,500

Apr.

2.1

7.5

21

6.8

3.1

2.15

1.84

1.64

1.51

1.32

1.19

1.08 TTi?

1.40

1.38

4.4

126

122

11.3

4.0

2.7

2.35

2.15

1.77

1.58

*16.5

3.5

2.05

1.77 

2 45

359.67

12.0

18.6

1,100

May

5.9

9.9

35

94

13.8

45

12.2

13.1

5.4

4.0

3.5

4.0

6.8

8.1

5.4

4.4

23.5

45

124 "65

8.7

34

32

22.5

15.5

12.2

34

74

14.2 

7.4

8.3

790.8

25.5

39.5

2,430

June

16.8

8.2

6.4

4.9

4.4

7.2

15.4

12.8

9.6

7.4

4.5

4.0

3.5

4.0

3.0

2.7

370

4.2

3.5

9.0

6.5

3.7

3.3

8.0

7.0

3.5

5.6

16

20 

10

217.5

7.25

11.2

667

Calendar year 1953 . Max 163 Min 0.21 Meanfmgd) 5.21 Mean(cfs) 8.06 Ac-ft 5,840

Fiscal year 1953-54 : Max 156 Min 0.21 Mean(mgd) 8.14 Mean(cfs) 12.6 Ac-ft 9,110

Peak discharge (base, 700 mgd). No peak above base.

Discharge measurement made on this day. 

Note. No gage-height record June 11-30; discharge estimated on basis of records for nearby streams.
102 ISLAND OP MAUI

Honomanu Stream near Keanae Continued 

Discharge, In million gallons a day, fiscal year July 1954 to June 1955

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

Mean:

mgc

cfs

Ao-ft

July

12

90

35

37

30

15

8.0

6.5

6.0

875

17

30

12

8.0

6.0

14

50

45

14

15

7.0

12

20

35

30

65

60

65

28.5

10.1

7.4

799.0

25.8

39.9

2,450

Aug.

9.8

6.4

6.4

37.5

7.4

6.4

6.4

6.4

11.8

15.7

20.5

58

58

32

19.3

32.5

13.5

14.0

42

11.6

15.2

13.9

43

9.5

6.4

12.6

8.2

10.3

16.6

8.2

5.4

534.9

17.3

26.8

1,640

Sept.

4.4

4.0

3.5

3.1

3.1

31

13.2

8.2

4.9

4.0

3.1

2.7

2.35

4.6

3.1

*3.2

61

71

2T

4.9

5.6

4.4

3.1

4.4

16.7

5.4

3.5

2.7

2.35

2.15

306 . 65

10.2

15.8

941

Oct.

1.98

1.84

1.90

2.45

2.05

1.84

1.70

1.90

10.5

18.1

3.5

1.90

1.44

1.32

1.97

2.3

1.38

1.38

1.14

3.0

5.1

1.70

1.25

1.14

1.33

7.5

2.15

1.38

1.03

.86

.80

87.83

2.83

4.38

270

Nov.

0.69

.65

.60

.56

.51

3.55

48

"3.45

1.70

3.35

1.64

1.14

.91

.80

.86

.75

.65

.60

.56

.51

.51

.47

.43

.43

.58

.51

.43

.38

14.4

2.4

91.82

3.06

4.73

282

Dec.

5.2

32

38

4.8

11.2

29

94

121

215

570

180

268

76

107

25

95

25

8.2

4.9

11.7

144

50

9.0

4.9

4.0

14.0

31

30.5

9.4

53

38

2,108'.8

68.0

105

6,470

Jan.

45

32.5

31

22

5.4

4.4

4.0

3.1

2.7

2.45

2.15

2.05

2.15

3.5

2.7

1.98

1.77

1.64

1.51

1.44

47

9.7

2.7

2.05

1.99

112

T6

11.4

4.0

3.1

2,6

415.98

13.4

20.7

1,280

Feb.

2.3

2.7

5.9

3.3

2.15

1.90

64

65

39.5

245

205

51

87

32

21

9.9

8.9

47

121

46

9.9

4.9

7.4

9.2

4.9

4.9

31.5

8.6

~

1,141.85

40.8

63.1

3,500

Mar.

4.9

4.0

3.5

3.1

4.3

17.9

9.2

5.9

4.9

102

85

55

16.0

6.4

32

128

IT. 8

4.9

4.4

6.0

4.4

3.8

17.6

4.0

3.1

2.5

2.3

2.3

2.2

3.05

10.6

565.05

18.2

28.2

1,730

Apr.

10.3

6.4

7.3

4.0

3.1

2.6

2.35

3.05

2.5

2.05

1.70

1.64

T7T

4.9

4.9

3.1

39

68

69

12.1

7.4

6.4

24

26

43

43

14.1

14.0

100 -35-

563.09

18.8

29.1

1,730

May

10

10.4

46

31.5

7.4

5.4

24.5

6.4

22

7.6

8.4

11.0

14.6

9.8

6.4

10.3

5.4

7.8

14.9

15.6

8.5

7.4

14.7

29

18.2

14.9

8.2

4.9

4.0

3.5

470

392.7

12.7

19.6

1,210

June

4.0

4.0

3.5

3.9

6.3

3.1

2.5

2.35

2.7

3.5

2.7

2.15

2.3

1.84

1.84

*1.84

1.90

1,58

10.4

4.0

2.6

2.75

7.0

2.95

2.5

4.0

3.45

2.7

6.5

4.0

104.85

3.50

5.42

322

Calendar year 1954. Max 370 Min 0.25 Mean(mgd) 16.6 Mean(cfs) 25.7 Ac-ft 18,570

Fiscal year 1954-55: Max 370 Min 0.38 Mean(mgd) 19.5 Mean(cfs) 30.2 Ac-ft 21,820

Peak discharge (base, 700 mgd). Dec. 10 (6:30 p.m.) 980 mgd (1,520 cfs), 8.84 ft.

* Discharge measurement made on this day. 

Note. No gage-height record July 1-28, Dec. 11, 15-17, Apr. 29 to May 1} discharge estimated on 

basis of records for Puohokamoa and Waiakamoi Streams.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

3.1

2.15

2.05

9.3

12.9

4.2

2.3

1.98

1.98

2.5

1.84

8.5

59

9.8

11.2

11.1

4.9

10.8

8.1

6.4

4.0

4.0

7.8

4.9

12.9

9.1

54

38

28.5

10.6 

II

418.90

13.5

20.9

1,290

Aug.

*17.5

18.7

26

8.1

7.2

5.4

4.4

10.6

35

§1

29.5

16.1

6.4

4.4

6.4

4.9

23.5

5.4

37.5

15.3

4.0

4. 0

13.2

22

7.9

14.1

7.5

4.4

4.0 

4.0

5.3

424.7

13.7

21.2

1,300

Sept.

15.2

12.2

5.4

4.9

4.0

3.5

3.1

2.6

2.2

1.98

1.90

1.84

*4.4

3.1

7.2

4.0

2.5

8.2

4.0

2.5

2.05

1.90

1.70

1.51

1.52

1.70

2.05

2.95

13.0

4.4

127.30

4.24

6.56

391

Oct.

3.5

7.5

5.4

22.5

1579

12.3

4.9

3.5

2.7

3.75

4.0

2.7

2.95

2.7

2.05

1.90

1.70

1.58

1.51

1.51

1.38

1.32

2.4

2.2

1.70

1.44

1.14

1.03

.97

* 80 

.75

116.68

3.76

5.82

358

Nov.

0.75

1.19

1.14

.80

.75

.69

.60

.56

756

27.5

2.45

1.84

1.08

1.38

2.15

1.58

4.6

2.8

9.1

16.8

21

10.1

4.0

5.4

3.1

2.05

1.70

1.51

1.32

1 32

129.82

4.33

6.70

398

Dec .

1.19

1.03

.97

.91

.86

.80

1.14

1.19

.86

.75

1.46

1.47

.86

.69

.60

.56

.56

.47

756

50

118

6.2

1.77

1.64

1.32

1.08

.97

.80

.69

.75 

1.08

201.23

6.49

10.0

618

Jan.

0.80

.60

.56

.51

TBT

.51

.51

1.74

34.5

12.6

3.45

89

78

5.9

2.45

1.84

1.58

1.32

1.14

1.03

.97

.91

.86

.91

2.4

*16.3

4.5

3.5

12.7

3.5 

7.6

292.70

9.44

14.6

898

Feb.

3.1

2.85

32.5

44

4.0

4.0

3.05

32

4.7

2.6

2.05

2.9

2.05

3.2

8.2

7.5

36

307

75

157

30

30.5

24.5

80

500

520

100

15

 

2,033 . 70

72.6

112

6,240

Mar.

8.0

6.0

5.0

4.2

3.7

3.5

3.0

2.7

2.5

2.1

2.5

1.9

1.8

4.8

2.0

1.5

TTs

5.0

4.0

1.8

1.5

4.0

7.0

9.0

IS.

3.5

2.3

2.2

9.0

8.0 

2.6

128.9

4.16

6.44

396

Apr.

17

100

30

8.0

3.0

16

11

13

65

80

28

27

39

4.0

11.0

8.9

8.7

2.7

2.35

30

19.0

5.4

3.5

2.35

1.90

2.35

2.15

1.38

1.58

3.5

547 . 76

18.3

28.3

1,680

May

5.4

5.4

7.5

4.1

6.6

19.8

63

40

23

16.7

38

33.5

22.5

30

4.6

2.7

2.35

11.4

14.9

12.0

4.3

2.75

2.45

5.5

6.9

5.4

4.4

*3.7

9.2 

11.2

11.4

430.65

13.9

21.5

1,320

June

13.3

35.5

52

23.5

14.3

18.9

10.0

7.4

9.3

26.5

15.0

80

68

55

16.5

6.4

4.9

4.9

4.9

4.4

4.0

5.7

10.6

18.7

4.9

4.0

3.5

3.1

37T

14.6

542.9

18.1

28.0

1,670

Calendar year 1955. Max 245 Min 0.47 Mean(mgd) 12.6 Mean(cfs) 19.5 Ao-ft 14,130

Fiscal year 1955-56: Max 520 Min 0.47 Mean(mgd) 14.8 Mean(cfs) 22.9 Ac-ft 16,560

Peak discharge (base, 700 mgd). Feb. 25 (8:30 p.m.) 2,510 mgd (5,570 efs), 10.75 ft.________

* Discharge measurement made on this day.

Note. No gage-height record Feb. 25 to Apr. 13j discharge estimated on basis of records for 

Waiakamoi and Puohokamoa Streams.
ISLAND OP MAUI 103

Haipuaena Stream at Kula pipeline intake, near Olinda

Location. Lat 20°48'25", long 156°13'25", on left bank, at Kula pipeline intake, 3.7 miles 

east of Maul County Olinda Reservoir and 6.2 miles south of Kailua.

Drainage area. 0.28 sq mi.

Records available. January to April 1946 (fragmentary), May 1946 to June 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 4,320 ft (from 

topographic map).

Average discharge. 10 years, 0.515 mgd (0.79 cfs).

Extremes. Maximum discharges for the fiscal years 1947-56 are contained in the following 

table:

Fiscal 

year

1947

1948

1949

1950

1951

1952

1953

1954

1955

1956

Maximum

Date

Dec.

Aug.

Apr.

Aug.

Dec.

Peb

Mar.

Jan.

Dec.

Feb.

16

(t)

15,

28,

IV,

11,

. 19,

4,

5,

10,

25,

1946

1948

1950

1950

1951,

1952

1953

1954

1954

1956

Discharge

(mgd)

52

87

52

50

44

44

60

47

60

65

(cfs)

80

135

80

77

68

68

93

73

93

101

Gage height 

(feet)

3.10

3.72

3.11

3.05

2.93

2.94

3.24

2.98

3.23

3.37

t Between Jan. 23 and Peb. 9, 1948. 

Mote. No flow at times each year.

1946-56: Maximum discharge, 87 mgd (135 cfs) between Jan. 23 and Feb. 9, 1948 (gage 

height, 3.72 ft), from rating curve extended above 1.3 mgd; no flow at times each year. 

Remarks. Records fair except those for periods of no gage-height record, which are poor. 

Kula pipeline diverts all water from Haipuaena Stream at low stages.

Rating table, Jan. 23, 1946, to June 30, 1956 (gage height, in feet, and 

discharge, in million gallons a day)

0.85 

.9

1.0

1.1

.03 

.18 

.52

1.2

1.3

0.98

1.60

2.45

3.5

1.6

1.7

1.8 

2.0

4.7 

6.0 

7.6 

11.2

2.2 

2.4 

2.8

Discharge, in million gallons a day, period January, to June 1946

Day

l

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean:

rage

cfs

Ac-ft

July Aug. Sept. Oct.

tO. 66

Nov. Dec.

tl.23

Jan.

_

_

_

-

-

_

-

_

-

-

_

_

_

_

-

_

_

-

-

-

_

-

5.5

5.5

-

_

_

_

-

_

-

-

-

Peb.

_

_

O

0

0

0

0

0

0

o

0

o

0

0

0

_

_

-

-

0

0

0

0

0

0

0

0

0

-

_

-

-

-

Mar.

0

0

0

0

0

0

.15

_

-

-

_

_

_

_

-

_

_

-

-

-

_

-

-

-

-

_

_

-

-

_

-

-

-

Apr.

_

_

-

-

-

.

-

-

.53

.18

0

_

_

_

-

.

_

-

-

-

_

_

-

-

-

_

0

0

0

.

-

-

-

May

0

0

0

0

June

0

0

0

0

0

0

0

0

0

0

0

0

0

O

0

0

0

0

0

0

0

0

0

0

0

.37

.14

O

0

0

0.51

O.O17

0.026

1.6

Calendar year . Max Min Mean(mgd) Mean(efs) Ac-ft 

Fiscal year . Max Min Mean(mgd) Mean(cfs) Ac-ft

t Result of discharge measurement.

Note.--Data insufficient to compute discharge for days for which no figures are given.
104 ISLAND OP MAUI

Halpuaena Stream at Kula pipeline Intake, near 01 Ind a Continued

Discharge, In million gallons a day, fiscal year July 1946 to June 1947

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

Mean:

mgd cfs1 Ac-ft

July

0

0

0

0

O

0

0

.01

.70

4.2

2.1

4.5

4.1

.05

1.68

2.0

2.35

6.8

6.4

4.4

.85

0

0

0

0

0

4.0

1.11

0

0

0

45.25

1.46

2.26

139

Aug.

0

0

.04

.02

O

0

0

.03

0

0

0

0

.06

754

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.19

0.006

0.009

0.6

Sept.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.01

.02

0

0.03

0.001

0.002

0.1

Oct.

0

.04

0

0

0

0

.18

705

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.15

0

0.42

0.014

0.022

1.3

Nov.

0

S

0

0

10

.90

0

0

0

0

0

0

.20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.5

13.60

0.453

0.701

42

Dec.

0

0

3.0

.20

.02

.17

.17

.04

0

0

0

0

0

0

.94

10.0

7.9

.01

0

9.3

1.04

.64

.70

.16

1.31

.18

0

0

0

. 78

. 80

37.36

1.21

1.87

115

Jan.

0

4.0

272

.11

0

0

.03

1.34

.45

.04

.42

.89

.69

.06

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

10.23

0.330

0.511

31

Feb.

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

.35

1.5

5.0

_

4.85

0.173

0.268

15

Mar.

1.84

.89

.07

0

0

0

0

.35

.01

0

0

0

.56

2.9

.18

0

0

0

0

0

0

0

0

.69

.66

0

0

5.1

~797 7.7

.13

22.05

0.711

1.10

68

Apr.

0

0

0

0

.12

2.65

2.15

.72

.03

0

.06

1.89

.45

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

8.07

0.269

0.416

25

May

0

0

5.9

579

1.46

.93

.09

0

1.01

.95

3.0

3.4

.90

.03

0

0

0

0

0

0

.01

2.1

.13

.61

.37

1.29

1.02

.87

.04

0

0

30.01

0.968

1.50

92

June

0

3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.27

1.44

.31

1 ftQ I- 88

4.91

0.164

0.254

15

Calendar year 1946; Max - Min - Meanfmgd) - Mean(cfs) - Ac-ft - 

Fiscal year 1946-47 : Max 10.0 Min 0 Mean(mgd) 0.485 Mean(cfs) 0.750 Ac-ft 544

Peak discharge (base, 44 mgd).--Dec. 16 (l p.m.) 52 mgd (80 cfs), 3.10 ft.____________________

Note.--No gage-height record Oct. 29 to Dec. 4, Feb. 26, 27, Mar. 6-8, 13, 15, 30, 31; discharge 

estimated on basis of recorded range In stage and records for nearby stations.

Discharge, in million gallons a day, fiscal year July 1947 to June 1948

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

Mean:

mgc

Cf£

Ac-ft

July

0.04

2,3

1.00

.14

.21

.60

.04

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.72

.14

0

0

0

0

5.19

0.167

0.258

16

Aug.

0

0

0

.03

2.2

0

0

0

0

0

0

3.05

.57

.01

0

0

2.25

.09

0

0

0

0

0

.52

4.4

.52

.15

.02

0

.29

0

14.10

0.455

0.704

43

Sept.

0.85

.73

1.77

2.65

.46

.89

.05

0

0

0

.86

.04

.16

0

0

0

0

0

0

0

0

1.30

.22

0

0

0

0

0

0

1.01

10.99

0.366

0.566

34

Oct.

0

0

0

0

1.20

0

0

0

0

0

0

0

.07

.80

0

0

0

0

0

0

0

b

0

0

3.85

2.55

.16

0

0

0

0

8.63

O.E78

0.430

26

Nov.

0

0

0

0

0

0

0

0

.98

.07

1.67

2.35

~747 4. 1

2.4

.04

0

0

0

0

0

0

0

0

0

0

0

0

0

0

12.08

0.403

0.624

37

Dec.

0.44

.03

0

.12

.16

.31

1.67

.14

.04

0

.15

1.00

1.81

.62

.06

3.05

2.15

15.3

o'

0

0

0

0

0

0

0

0

0

0

0

28.15

0.908

1.40

86

Jan.

~.16 0

4.8

1.08

.35

.33

.19

0

0

0

0

.89

1.31

0

0

0

0

0

0

0

0

0

.25

15

1.00

0

0

0

0

0

0

25.36

0.818

1.27

78

Feb.

0

0

0

0

0

0

0

.08

0

.07

.05

.08

0

0

0

0

0

0

0

0

1.14

T704

.18

0

0

.08

.56

0

0

3.E8

0.113

0.175

10

Mar.

2.0

.51

2.9

.60

.10

0

0

1.54

1.27

2.75

2.7

3.75

3.6

.97

.42

6.8

6.4

7.2

T783

3.4

.17

.39

2.05

1.00

1.00

.70

.40

1.00

4.5 1 00

!l5

61.10

1.97

3.05

188

Apr.

0.3

3.3

4.6

5.5

T724

.22

0

.02

.04

0

0

.51

.18

.13

3.3

1.00

.15

.19

.39

0

0

0

0

0

0

.02

.04

.31

3.4

.23

25.07

0.836

1.29

77

May

0.11

.03

0

0

.02

0

0

0

0

.05

0

0

.24

0

0

0

.13

.11

.32

1.07

.50

.12

.01

.14

.07

.41

2.7

2£

.32

.08

.46

9.69

0.313

0.484

30

June

0.83 '.16

.02

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.03

~22^5

.60

4.76

0.159

0.246

15

Calendar year 1947: Max 15.3 Min 0 Meanfmgd) 0.436 Mean(cfs) 0.675 Ac-ft 488

Fiscal year 1947-48: Max 15.3 Min 0 Meanfmgd ) 0.569 Mean(cfs) 0.880 Ac-ft 640

Peak discharge (base, 44 mgd}.--Oct. 25 (2:30 p.m.) 44 mgd (68 cfs), 2.96 ftj between Jan. 23 and 

Feb. 9, 87 mgd (135 efs), 5.72 ft.___________________________________________________

Note. No gage-height record Dec. 19-28, Jan. 23 to Feb. 9, Mar. 24 to Apr. 1; discharge estimated 

on basis of recorded range in stage and records for nearby stations.
ISLAND OP MAUI 

Haipuaena Stream at Kula pipeline intake, near Olinda Continued

Discharge, in million gallons a day, fiscal year July 1948 to June 1949

105

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

Mean:

mgc

cfs

Ac-ft

July

0.04

0

0

.05

1.09

1.64

2.3

.57

.16

.02

2.55

.24

.02

0

0

0

2.5

3.0

.20

0

0

0

0

.05

0

0

.12

.80

.10

0

.20

15.65

0.505

0.781

48

Aug.

0

0

0

0

0

.05

0

0

0

0

0

0

0

0

7.1

2.3

.57

.13

0

.23

0

.65

.42

.05

0

0

0

0

0

.01

.03

11.54

0.372

0.576

35

Sept.

0

0

0

0

0

0

0

0

0

0

.18

.04

0

0

0

0

0

0

0

0

0

0

"Tio 1.95

0

0

1.95

1.17

.05

1.4

6.84

0.228

0.353

21

Oct.

0.94

.14

.01

0

0

0

0

0

0

0

.05

0

0

0

0

0

0

0

0

1.02

.54

.63

.50

.09

.29

.95

2.30

6.0

3.2

. 83

.46

17.95

0.579

0.896

55

Nov.

1.50

.10

0

0

0

0

0

3.3

.80

.11

.52

.04

0

.01

.05

.79

.42

.07

0

0

.10

.02

.09

0

.01

.03

3.85

3.1

1.98

.15

17.04

0.568

0.879

52

Dec.

1.55

.08

.01

0

0

0

0

.80

3.8

4.2

.56

5.9

5.4

1.13

.43

2.00

.22

.36

.18

.13

1.90

5.8

5.9

12.8

4.1

1.72

.83

1.43

5.2

4.6

1.01

72.04

2.32

3.59

221

Jan.

0.15

3.0

.50

0

0

0

0

.08

.36

0

.15

.01

0

0

0

0

3.65

.45

.25

.05

0

0

0

0

0

0

0

0

0

0

0

8.65

0.279

0.432

27

Feb.

0

0

0

0

0

0

0

2.55

.32

.01

0

0

0

.19

.02

0

0

0

0

0

0

0

0

0

0

0

0

0

_

3.09

0.110

0.170

9.5

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

3.0

.50

0

0

0

0

0

0

0

0

.05

0

.10

0

0

.15

1.5

5.0

TTo

10.40

0.335

0.518

32

Apr.

0.09

0

0

0

0

0

0

0

0

0

.10

1.5

0

0

0

.06

0

0

0

0

0

0

.50

~03.0

1.5

0

0

0

0

6.95

0.232

0.359

21

May

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

.80

.05

.25

0

0

1.10

0.035

0.054

3.4

June

0

0

0

0

0

0

0

0

0

0

.10

.20

0

0

0

0

0

0

0

0

0

.04

.35

1.12

1.28

.15

0

0

0

0

3.24

0.108

0.167

9.9

Calendar year 1948: Max 15 Min 0 Mean(mgd) 0.739 Mean(cfs) 1.14 Ac-ft 830

Fiscal year 1948-49: Max 12.8 Min 0 Mean(mgd) 0.478 Mean(cfs) 0.740 Ac-ft 535

Peak discharge (base, 44 Mgd).--Aug. 15 (5:30 p.m.) 52 mgd (80cfs),3.11 ft._____________ 

Note.--No gage-height record July 15 to Aug. 13. Jan. 1-5, Jan. 22 to Feb. 3, Feb. 26 to Mi 

Mar. 18 to Apr. 28, May 26 to June 14; discharge estimated on basis of recorded range in sta; 

records for nearby stations.

Discharge, in million gallons a day, fiscal year July 1949 to June 1950

lar. 15, 

itage and

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

Mean:

mgc

Cf£

Ac-ft

July

0

0

0

0

0

0

0

0

0

0

.05

0

.06

0

.50

0

0

0

0

0

0

0

0

0

0

5.0

1.0

0

.15

0

0

6.76

0.218

0.337

21

Aug.

0

o .07

0

0

0

0

0

0

.01

.01

0

0

0

0

0

0

.01

0

.01

0

0

0

0

.01

0

0

0

0

0

0

0.12

0.004

0.006

0.4

Sept.

0

0

0

0

Oct.

0

0

0

0

0

0

0

0

0

.20

0

.23

712

.01

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.56

0.018

0.028

1.7

Nov.

0

0

0

.11

4.4

.45

.27

0

0

0

0

4.1

2.6

.66

.57

.79

.47

.40

.08

0

0

0

0

0

0

0

.61

.07

3.95

5.7

25.23

0.841

1.30

77

Dec.

2.75 273"

2.45

.39

.03

0

0

0

0

0

.01

0

.03

.13

0

.08

0

0

0

0

0

0

0

0

0

0

0

0

0

. 38

.02

8.57

0.276

0.427

26

Jan.

0

"749 3.8

0

0

0

0

0

0

0

3.2

2.25

.31

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

10.05

0.324

0.501

31

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

1.21

0

0

0

2.45

4.4

.49

.17

.85

"756 4.9

.07

0

0

0

.03

-

_______

15.13

0.540

0.836

46

Mar.

0

0

0

0

0

1.65

0

0

0

.70

.99

.01

0

0

0

0

0

0

0

6.8

9.7

.57

.02

3.4

1.47

.05

.08

.45

10.3

3.6 1 32

41.11

1.33

2.06

126

Apr.

0.63

.04

o

0

0

.15

.38

.05

0

2.1

2.05

.23

.79

.14

.31

.29

1.85

1.87

8.7

.71

0

1.33

6.9

4.4

.82

1.12

3.55

16.0

1. 13

1.32

___-_-_

56.86

1.90

2.94

174

May

0.61

.20

.01

.24

0

0

.71

1.48

.03

.01

.58

.03

0

0

0

.07

.04

2.3

11

.23

.39

.10

.46

.80

.36

.29

.07

0

0

0 

0

9.12

0.294

0.455

28

June

0

0

0

0

0

0

0

.24

.03

0

.05

0

0

0

0

0

0

0

0

0

0

0

.23

.58

.48

.21

.04

0

0

0

1.86

0.062

0.096

5.7

Calendar year 1949: Max 5.7 Min 0 Mean(mgd) 0,205 Mean(cfs) 0.317 Ac-ft 229 

Fiscal year 1949-50: Max 16.0 Min 0 Mean(mgd) 0.480 Mean(cfs) 0.743 Ac-ft 537

Peak discharge (base, 44 mgd).--Apr. 28 (2 p.m.) 50 mgd (77 efs), 3.05 ft._______________

Note.--No gage-height record July 1 to Aug. 1, Aug. 13-22; discharge estimated on basis of 

recorded range in stage and records for nearby stations.
106 ISLAND OF MAUI

Haipuaena Stream at Kula pipeline intake, near Olinda Continued 

Discharge, in million gallons a day, fiscal year July 1950 to June 1951

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

Mean:

mgc

Cf£

Ac-ft

July

0.12

.02

0

0

0

0

0

0

.04

4.5

1.05

0

0

0

0

0

0

0

.06

4.3

.60

.44

.30

.71

.26

0

0

.03

0

0

0

12.23

0.395

0.611

38

Aug.

0

.28

.02

0

0

0

.05

0

0

0

.11

.05

.65

24.5

5.45

0

2.7

.58

0

0

0

0

0

0

0

0

0

0

0

0

0

32.35

1.04

1.61

99

Sept.

0

0

0

0

0

0

0

1.0

2.5

1.8

1.5

.30

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

7.10

0.237

0.367

22

Oct.

0

0

0

0

.98

.83

0

.70

.47

0

.26

0

0

0

0

0

0

0

0

0

0

0

0

1.8.9

1.84

0

0

0

0

0

7.25

0.234

0.362

22

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.21

.31

0

.09

.57

.03

0

0

0

18.6

9.6

.63

.04

0

.25

31.33

1.04

1.61

96

Dec.

0.32

.75

.54

1.13

.03

5.4

2.6

.84

0

2.15

1.15

1.78

.86

.08

0

0

0

0

0

0

0

0

0

0

.24

3.6

4.0

4.1

16.4

1 . 18

.36

45.51

1.47

2.27

140

Jan.

0.03

0

0

0

0

0

0

.10

.29

.02

.01

0

0

10.9 ITT

5.5

.70

.21

0

0

0

.64

.44

.14

0

0

0

0

0

0

0

26.08

0.841

1.30

80

Feb.

0

0

0

0

0

0

0

0

0

0

0

1.93

4.2

2.6

2.5

2.8

.50

6.3

1.65

.47

3.3

1.40

.11

0

0

0

0

0

-

27.76

0.991

1.53

85

Mar.

0.09

0

0

0

.29

.05

0

0

0

0

0

0

2.2

2.95

0

.52

.39

.45

.16

0

0

2.0

0

0

.26

0

0

0

0

0 

1.20

10.56

0.341

0.528

32

Apr.

2.2

.65

.04

.22

.54

.13

0

0

.91

.08

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

4.77

0.159

0.246

15

May

0

0

0

0

0

.22

.05

0

0

0

0

0

0

0

0

0

.19

.16

0

0

0

0

0

0

0

0

0

0

0 

0

0

0.62

0.020

0.031

1.9

June

0

0

0

0

1 . 15

.13

0

0

0

.61

1.08

.93

.08

0

0

0

0

0

0

0

0

0

0

.73

.02

0

0

0

0 

0

4.71

0.157

0.243

14

Calendar year 1950: Max 24.5 Min 0 Mean(mgd) 0.739 Mean(cfs) 1.14 Ac-ft 828

Fiscal year 1950-51: 1950-51: Max 24.5 Min 0 Mean(mgd) Mean(mgd) 0.576 Mean(cfs) Hean(cfs) 0.891 Ac-fte 645

Peak discharge (base, 44 mgd).--Aug. 17 (5:50 p.m.) 44 mgd (68 cfs), 2.95 ft.______________ 

Note.--No gage-height record Aug. 27 to Sept. 19. Mar. 19-22; discharge estimated on basis of 

recorded range in stage and records for nearby stations.

Discharge, in million gallons a day, fiscal year July 1951 to June 1952

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

Mean:

mgd

cfs

Ac-ft

July

0

0

0

0

0

.37

.10

0

0

0

0

0

.07

.04

0

0

0

0

0

.01

0

0

0

0

0

0

0

0

.64

2.7

.13

4.06

0.131

0.203

12

Aug.

0

0

0

0

.75

6.0

~26.9

.36

.03

0

0

0

0

0

0

0

0

0

.97

.03

0

0

.04

1.06

0

0

.02

0

. 26

1.48

18.32

0.591

0.914

56

Sept.

0.39

0

0

0

.55

.83

2.4

.25

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

4.42

0.147

0.227

14

Oct.

0

0

0

0

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

4.0

.2

0

.3

0

0

0

0

0

.3

5.0

.5

10.3

0.332

0.514

32

Nov.

0

0

0

0

0

0

.3

.4

.2

0

0

0

0

0

0

0

0

0

3.0

7.0

1.89

.85

.05

0.0

0

2.75

1.00

.34

.04

0

17.82

0.575

0.890

55

Dec.

0

0

0

0

0

0

0

0

0

0

6.2 iTso

.01

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.12

.86

1.29

10.28

0.332

0.514

32

Jan.

0.08

0

.41

.29

0

0

0

0

0

0

0

0

0

.40

0

0

0

0

1.0

8.0

.50

0

0

0

0

0

0

0

0

0

0

10.68

0.345

0.534

33

Feb.

0

.10

0

0

0

0

0

0

0

0

0

0

1.02

.13

0

0

.48

.06

5.7

T765

0

0

.55

.58

.02

0

0

0

0

10.29

0.355

0.549

32

Mar.

0

.01

0

5.9

2.7

.32

1.66

6.5

579

5.2

2.85

2.35

2.15

.34

.02

0

.25

.13

.01

0

0

0

0

0

0

0

1.48

.58

0

0

0

38.35

1.24

1.92

118

Apr.

~.19 0

.01

0

.17

.22

0

0

0

0

0

0

.61

.17

0

0

0

0

0

.55

.35

0

.77

0

0

0

1.42

.05

0

.47

4.98

0.166

0.257

15

May

1.02

.04

1.75

1.01

1.26

1.24

.07

0

0

0

0

0

0

0

0

0

0

.68

2.05

.13

0

.37

.07

0

0

0

.04

.01

0

0

0

9.74

0.314

0.486

30

June

a

0

0

0

.40

.14

0

0

0

.01

0

0

0

0

0

0

0

.08

.30

.10

0

0

0

0

0

0

0

0

.38

.32

1.73

0.058

0.090

5.3

Calendar year 1951: Max 10.9 Min 0 Mean(mgd) o'.383 Mean(cfs) 0.593 Ac-ft 429

Fiscal year 1951-52: Max 8.0 Min 0 Mean(mgd) 0.385 Mean(cfs) 0.596 Ac-ft 434

Peak discharge (base, 44 mgd).--Dec. 11 (9:30 p.m.) 44 mgd (68 cfs}, 2.94 ft; Feb. 19 (7 p.m.) 

44 mgd (68 cfs), 2.94 ft.________________________________________________

Note.--No gage-height record Oct. 12 to Nov. 20, Dec. 25-29, Jan. 5-21, Jan. 27 to Feb. 1; discharge estimated on basis of recorded range in stage and records for nearby stations.
ISLAND OF MAUI 

Halpuaena Stream at Kula pipeline Intake, near Ollnda Continued

Discharge, in million gallons a day, fiscal year July 1952 to June 1953

107

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

Mean:

mgd

cfs

Ac-ft

July

0

0

0

0

.20

0

0

.38

1.40

.02

0

0

0

5.5

3?7

.15

.79

.73

.01

0

0

0

0

0

0

.17

.04

0

0

0 

0

13.09

0.422

0.653

40

Aug.

0.33

.01

0

0

0

0

.01

0

~7l2 1.16

0

.25

.02

0

.22

.02

0

0

0

0

0

0

0

0

0

.31

.25

0

0

0 

.01

2.71

0:087

0.135

8.3

Sept.

0

0

.08

0

0

.08

.01

0

.16

.10

0

0

1.66

.29

0

0

.08

.08

0

0

0

0

0

0

0

0

0

0

0

0

2.54

0.085

0.132

7.8

Oct.

0

0

0

.71

.04

0

0

0

0

0

0

.19

0

0

0

0

0

.22

1.46

.15

1.07

.32

.82

1.16

.16

1.18

.06

0

.18

1 . 88 

2.55

12.15

0.392

0.607

37

Nov.

1.65

2.1

.85

.47

.05

0

0

0

1.90

8.3

6.8

1.51

3.6

2.85

3.65

3.3

.23

0

.60

.94

.05

0

0

0

0

0

1.30

2.8

1.61

4.5

49.06

1.64

2.54

151

Dec.

0.54

.52

0

4.3

4.4

2.65

3.05

.84

1.90

.99

.02

0

0

0

0

0

.02

1.74

.01

0

0

0

0

0

0

0

0

0

0

0 

0

20.98

0.677

1.05

64

Jan.

0

0

0

0

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.19

.21

0

0

0

0

0

0

0

.01

.02

_

0.43

0.015

0.023

1.3

Mar.

0.03

.01

0

10.0

1.31

.01

0

0

2.35

1.72

.03

0

.17

.05

0

0

0

.43

.02

0

0

0

0

0

0

.08

0

0

0

0

0

16.21

0.523

0.809

50

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.06

0

0

0

0

0

0

0

0

0

0

0

0

0.06

0.002

0.003

0.2

May

0

0

3.8

10.5

.59

.70

.72

1.21

.20

.01

0

0

0

0

0

.30

.04

0

0

0

0

0

0

0

0

0

0

.05

0

0

0

18.12

0.585

0.905

56

June

0

0

0

0

0

0

0

0

0

0

.01

.08

0

0

.10

.27

0

.13

.03

0

0

.02

.35

^39

.04

0

0

0

0

0

1.42

0.047

0.073

4.4

Calendar year 1952: Max 8.3 Min 0 Mean(mgd) 0.482 Mean(cfs) 0.746 Ac-ft 541 

Fiscal year 1952-53: Max 10.5 Min 0 Mean(msd) 0.375 Mean(cfs) 0.580 Ac-ft 420

Peak discharge (base, 44 mgd).--Nov. 10 (10 p.m.) 44 mgd (68 cfs), 2.94 ft; Mar, 4 (3 p.m.) 60 mgd 

(93 efs), 3.24 ft.___________________________________

Discharge, in million gallons a day, fiscal year July 1953 to June 1954

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

Mean:

mgd

cfs

Ac-ft

July

0

0

.10

.96

.07

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

1.13

0.036

0.056

3.5

Aug.

0

Ll

.52

0

0

.47

.33

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.25

.05

0

0

0

0

0

0

0

0

6.92

0.223

0.345

21

Sept.

0

0

0

0

0

0

0

0

^03

.01

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.04

0.001

0.002

0.1

Oct.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3.25

.51

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3.76

0.121

0.187

12

Nov.

0

0

0

0

0

0

0

0

.02

.03

.12

0

0

0

0

2.45

1749

.01

1.08

.07

0

0

0

.50

1.61

.03

0

0

0

0

7.41

0.247

0.382

23

Dec.

0

0

0

0

.10

.35

0

0

0

0

0

0

0

0

0

0

0

0

aO

aO

a. 10

a. 04

aO

aO

aO

aO

a. 80

703

0

0

0

1.42

0.005

0.008

4.4

Jan.

0

0

0

0

15^8

.51

.02

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

16.33

0.527

0.815

50

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.37

.28

0

0

1.65

0.059

0.091

5.1

Mar.

0

.25

.05

2.05

7.0

1.34

1.90

.89

1.12

1.60

.58

.18

0

0

0

0

0

.56

0

0

.31

.02

0

0

0

0

0

0

0

0

0

17.85

0.576

0.891

55

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

8.6

6.5

.29

0

0

0

0

0

0

0

0

0

0

0

15.39

0.513

0.794

47

May

0

0

1.02

2.5

.17

1.03

.05

0

0

0

0

0

0

0

0

0

.07

2.75

4.2

.41

.01

.41

.50

.06

.04

.13

.89

3.25

2.0

0

.30

19.79

0.638

0.987

61

June

0.16

0

0

0

0

0

.01

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.10

.38

702

0

.04

.13 .'06

.31

1.21

0.040

0.062

3.7

Calendar year 1953: Max 10.5 Min 0 Mean(mgd) 0.156 Mean(cfs) 0.241 Ac-ft 176 

Fiscal year 1953-54: Max 15.8 Min 0 Mean(mgd) 0.255 Mean(cfs) 0.395 Ac-ft 286

Peak discharge (base, 44 ). Jan. 5 (5 a.m.) 47 mgd (73 efs), 2.98 ft.

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

nearby stations.

5E7571 O -59 -8
108 ISLAND OF MAUI

Haipuaena Stream at Kula pipeline intake, near Olinda Continued 

Discharge, In million gallons a day, fiscal year July 1954 to June 1955

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

Mean:

mgd

OfB

Ac-ft

July

0.28

7.7

1.15

2.05

.19

0

0

0

0

.32

.11

1.48

.39

.05

0

.61

2.2

.83

.21

.11

0

.07

.72

a. 55

a2.3

a4.0

fl.75

4.6

1.69

.16

0

33.52

1.08

1.67

103

Aug.

0

0

0

1.30

.03

0

0

0

0

0

.07

1.81

.35

.73

.22

.32

.17

.06

.84

.34

.15

0

1.26

.03

0

.23

.03

0

.08 

0

0

8.02

0.259

0.401

25

Sept.

0

0

0

0

0

.01

.03

0

0

0

0

0

0

0

0

0

4.3

3.75

1.03

.06

0

0

0

0

.49

.01

0

0

0 

0

9.68

0.323

0.500

30

Oct.

0

0

0

0

0

0

0

0

.39

1.11

.01

0

0

0

0

0

0

0

0

.02

.04

0

0

0

0

.09

0

0

0

0 

0

1.66

0,054

0.083

5.1

Nov.

0

0

0

0

0

0

2.15

.03

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.06

0

2.24

0.075

0.116

6.9

Dec.

0

1.85

.97

.01

.09

1.43

7.9

8.3

19.8

30.5

10.2

18.3

6.6

9.0

.60

6.2

.57

.04

0

.07

9.1

2.45

.01

0

0

.51

.7

1.24

.12

2. 45

1. 48

140.49

4.53

7.01

431

Jan.

1.37

1.00

.48

.41

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3.5

.42

0

0

0

6.7

1.95

.32

0 

0

0

16.15

0.521

0.806

50

Feb.

0

0

0

0

0

0

.82

2.05

1.66

19.1

13.9

2.7

5.4

1.29

.84

.35

.57

3.4

10.9

2.45

.15

0

.15

.21

0

0

.92

.01

-

66.87

2.39

3.70

205

Mar.

0

0

0

0

.01

.91

.19

0

0

6.3

6.7

1.64

.32

.04

.56

6.6

.28

0

0

.45

.03

.14

.95

0

0

0

0

0

0

0 

.02

25.14

0.811

1.25

77

Apr.

0.05

.02

.06

.02

0

0

0

0

0

0

0

0

0

0

0

0

1.10

3.25

3.75

.21

.10

.12

.38

.32

.60

.98

.21

.01

4.4

.44

16.02

0.534

0.826

49

May

0

.02

2.25

1.02

.04

0

.05

0

.06

.01

0

0

0

0

0

.07

0

0

.85

1.21

.17

.01

.08

1.07

.72

1.21

.26

0

0 

0

0

9.10

0.294

0.455

28

June

0

0

0

.79 04

0

0

0

0

0

0

0

0

0

0

.04

0

0

.47

0

0

0

0

0

0

0

0

0

.12 

.01

1.57

0.052

0.080

4.8

Calendar year 1954= Max 30.5 Mln 0 Mean(mgd) 0.734 Mean(cfs) 1.14 Ac-ft 823 

Fiscal year 1954-55; Max 30.5 Min 0 Mean(mgd) 0.905 Mean(cfs) 1.40 Ac-ft 1,010

Peak discharge (base, 44 mgd). --Dec. 10 (3:30 p.m.) 60 mgd (93 efs), 3.23 ft; Feb. 11 (5 a.m. ) 

50 mgd (77 cfs), 3.07 ft.

rang

, . . _____________________________________

a No gage-height record; discharge estimated on basis of records for nearby stations and 

inge ngeIn stage.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights. 

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

Cf£

Ac-ft

July

0

0

0

.12

1.2

.11

0

0

0

0

0

.14

3.35

.48

.12

.22

.01

0

0

0

.05

.02

.49

.09

.30

.47

2.75

2.05

1.06 

. 18

5.5

18.71

0.604

0.935

57

Aug.

0.21

1.86

1.04

.11

.16

.03

0

0

1.59

1.79

1.08

.04

0

0

0

0

.70

.03

5.1

.67

.03

0

.19

.46

0

.32

.01

0

0 

0

0

15.42

0.497

0.769

47

Sept.

6

.16

.01

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.40

.03

0

0

0

0

0

0

0

0

0

.21 

0

0.81

0.027

0.042

2.5

Oct.

0

.10

0

.39

.20

.08

0

0

0

.01

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

0.78

0.025

0.039

2.4

Nov.

0

0

0

0

0

0

0

0

0

1.95

.01

0

0

0

0

0

0

0

.30

.70

.15

.13

0

0

0

0

0

0

0 

0

3.24

0.108

0.167

9.9

Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

5.0

12.5

.56

0

0

0

0

0

0

0

0

0

18.06

0.583

0.902

55

Jan.

0

0

0

0

0

0

0

0

.51

.03

0

9.0

5.1

.36

0

0

0

0

0

0

0

0

0

0

0

.92

.04

0

0 

0

.15

16.11

0.520

0.805

49

Feb.

0

0

2.7

3.5

.06

0

0

2.2

.10

0

0

0

0

0

.08

0

1.36

23

7.5

10.2

.52

.49

.36

2.2

19.6

18.7

3.3

1.05

.06

96.98

3.34

5.17

298

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.05

.04

.05

0

0

0

0

^38 

. 26

0

0.78

0.025

0.039

2.4

Apr.

1.71

6.2

2.5

.56

*0

.15

.13

.57

6.0

5.3

.97

.62

2.9

0

0

.49

.28

0

0

1.71

.55

.09

0

0

0

0

0

0

0 

0

30.73

1.02

1.58

94

May

0

0

.03

0

0

.91

2.85

1.51

.73

.43

1.76

.23

.61

1.49

.03

0

0

.16

.20

.06

0

0

.19

*.04

.06

.19

.04

0

.27 

.27

.49

12.55

0.405

0.627

39

June

0.30

1.95

3.35

.54

.02

.19

.09

0

.05

.78

.43

5.5

3.7

3.4

.53

0

0

0

0

0

0

.02

.06

.20

0

0

0

0

0 

.01

21.12

0.704

1.09

65

Calendar year 1955: Max 19.1 Mln 0 Meanfmgd) 0.526 Mean(cfs) 0.814 Ae-ft 588

Fiscal year 1955-56: Max 23 Mln 0 Mean(mgd) 0.643 Mean(cfs) 0.995 Ac-ft 721

Peak discharge (base, 44 mgd). Feb. 18 (l p.m.) 47 mgd (73 cfs), 2.98 ft; Feb. 25 (8 p.m.) 65 mgd 

(101 cfs), 3.37 ft._____________________________________________________________ 

* Discharge measurement or observation of no flow made on this day.
ISLAND OP MAUI 109

Kula diversion from Haipuaena Stream near Olinda

Location. Lat 20°48'25" (revised), long 156°13'25" (revised), on left bank 3.7 miles east 

of Maul County, Olinda Reservoir, and 6.2 miles south of Kailua.

Records available. July 1945 to June 1956.

Gage. Water-stage recorder and Parshall flume. Altitude of gage is 4,300 ft (from topographic map).

Average discharge. 10 years (1946-56), 0.445 mgd (0.689 cfs).

Extremes. 1945-56: Maximum daily discharge, 2.05 mgd (3.17 cfs) Mar. 20, 1948; minimum 

daily, 0.01 mgd (0.02 cfs) for several days in 1953, 1954, 1955.

Remarks. Records good. Kula diversion flume diverts water from Haipuaena Stream at 

station for domestic use and irrigation of truck crops in the Olinda and Kula areas.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

31

Total

Mean:

mgd 

cfs

Ac-ft

July

0.25

.17

.14

.68

.65

.56

.27

.19

.14

.18

7~5T .12

1.58

1.12

.93

1.02

.56

.44

*.32

.45

.55 

.51

.69

.77 i.os

1.19

1.28

1.15

1.23

. 96 

.81

20.53

0.662 

1.02

63

Aug.

0.63

1.19

1.09

.76

.96

.70

.36

.37

1.30

1.21

1.08

.66

.44

.30

.23

.21

1.20

.68

.94

.61

.42 

.28

.79

1.07

.54

1.09

.71

.38

.28

23 

132

21.03

0.678 

1.05

65

Sept.

0.50

~T63 1.03

.48

.36

.26

.26

.19

.14

.10

.09

.07

.07

.08

.27

.25

.15

.49

.49

.22

.14 

.14 .11"

.09

.07

.06

706

.08

.75

50

8.13

0.271 

0.419

25

Oct.

0.43

.84

.59

.94

1.02

.88

.48

.25

.16

.34

.40

*.23

.19

.17

.10

.09

.07

.06

.04

.04

7§

.05

.09

.07

.06

.06

.06

.04

.03 

.03

7.87

0.254 

0.393

24

Nov.

0.04

.05

.04

.03

.02

.02

.02

.01

702

1.12

.59

.33

.17

.14

.23

.16

.23

.24

.45

1.01

.90 

.89

.41

.32

.34

.19

.14

.10

.09

.09

8.38

0.279 

0.432

26

Dec.

0.08

.06

.05

.04

.03

.02

.02

.02

.02

.01

.02

.02

.02

.02

.02

.01

.01

.01

.01

.71

.31 

.45

.38

.23

-17

le

!09

.08

.06

.05 

.05

3.19

0.103 

0.159

9.8

Jan.

0.04

.04

.03

.03

.02

.02

.02

.02

1.06

.81

.41

.78

i.12

.92

.43

.26

.18

.12

.09

.07

.06 

.05

.04

.03

.23

.95

.58

.26

.23

.32 

.91

b,0.13

0.327 

0.506

51

Feb.

0.34

.28

1.57

1.24

.61

.32

.22

.80

.66

.34

.23

.19

.21

.17

782

.46

.91

1.03

..37

.36

.81 

1.26

1.03

1.72

1739

.32

1.28

1.23

.71

 

20.88

0.720 

1.11

64

Mar.

0.44

.32

.22

.17

.20

.26

.16

.12

.10

.09

.08

.09

.08

.24

.16

.09

.11

.27

.47

.47

.21 

.34

.62

.79

.40

.25

.18

.15

.52 

83

740

8.89

0.287 

0.444

27

Apr.

0.83

2.0

1.50

1.00

.45

.62

.89

.86

1.06

.94

1.09

1.41

1.48

.67

.52

.87

1.03

.42

.30

.98

1.12 

.88

.57

.34

.28

.40

.38

.22

iii

 :L

23.47

0.782 

1.21

72

May

0.38

.48

.86

.55

.48

.94

1.29

1.04

1.20

1.13

1.37

1.13

1.31

"774 1.40

.42

.30

759

.98

.88

.55 

.46

.76

*.83

.81

.93

.70

.47

.64 7A

. to 

1.15

25.55

0.824 

1.27

78

June

1.00

1.30

1.32

1.08

.86

.99

.96

.63

.82

1.34

1.03

1.63

1.30

1.18

1.05

.66

.42

.32

.26

.25

.22 

.58

.81

1.00

.42

.22

.18

.15

.12 

753

22.63

0.754 

1.17

69

Calendar year 1955: Max 1.72 Min 0.01 Mean(mgd) 0.468 Mean(cfs) 0.724 Ac-ft 524

Fiscal year 1955-56: Max 2.0 Mln 0.01 Mean(mgd) 0.494 Mean(cfs) 0.764 Ac-ft 554

Discharge measurement made on this day.
110 ISLAND OF MAUI

Haipuaena diversion ditch at Kolea Gulch, near Keanae

Location. Lat 20°50'50", long 156°11'40", on right bank 15 ft downstream from end of

tunnel in Kolea Gulch, 3.1 miles southwest of Keanae, and 3.7 miles southeast of Kailua.

Records available. March 1938 to June 1956.

Gage.--Water-stage recorder and Parshall flume. Altitude of gage is 1,800 ft (from topographic map).

Average discharge. 18 years, 8.01 mgd (3.11 cfs).

Extremes. 1938-56: Maximum daily discharge, 11.4 mgd (17.6 cfs} Aug. 14, 1950; minimum 

 Sally, 0.02 mgd (0.03 cfs) Feb. 27 to Mar. 2, Apr. 3, 4, 1956.

Remarks. Records excellent. Ditch diverts water from Haipuaena Stream for Ea'st Maul 

Irrigation Co.'s hydroelectric plant about 1 mile downstream from where it discharges 

into Koolau ditch for irrigation in central Maul.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

Cf£

Ac-ft

July

1.62

1.56

1.56

2.1

1.94

1.83

1.62

1.56

1.56

1.69

1.49

2.1

3.25 

2.25

2.3

2.25

2.05

2.25

2.1

1.96

1.83 

1.76

1.83

1.90

2.3

2.2

3.25

2.85

2.65

2.25

3.3

65.16

2.10

3.25

200

Aug.

*2.25

2.5

2.6

2.1

1.96

1.90

1.76

2^7

3.1

2.7

2.45

1.96 

1.90

1.96

1.90

2.6

1.96

2.4

2.25

1.90 

1.76

2.25

2.5

2.1

2.25

2.05

1.83

1.76

1.76

1.90

67,11

2.16

3.34

206

Sept.

2^4

2.3

1.96

1.90

1.83

1.76

1.69

1.62

1.56

1.56

1.56

1.49

1.76 

1.62

1.96

1.69

1.56

1.90

1.76

1.56

1.49 

1.42

1.36

1.31

1731

1.36

1.42

1.62

2.25

1.83

50.81

1.69

2.61

156

Oct.

1.69

2.05

1.96

2.7

2.5

2.3

1.96

1.83

1.76

1.83

1.83

1.62

1.69 

1.62

1.56

1.49

1.42

1.36

1.36

1.36

1.31 

1.25

1.56

*1.49

1.36

1.31

1.19

1.07

1.02

.96 Tie

49.37

1.59

2.46

152

Nov.

0.96

1.07

1.02

,85.

.85

.75

.75

.70

770

2.4

1.56

1.31

1.07 

1.25

1.42

1.36

1.76

1.62

1.77

2.5

2.55

l!90

2.05

1.76

1.62

1.56

1.49

1.42

1.42

43.74

1.46

2.26

134

Dec.

1.36

1.31

1.25

1.19

1.13

1.07

1.13

1.19

.96

.96

1.25

1.25

.96 

.85

.80

.75

.75

.70

770

2.75

M> 1.49

1.42

1.36

1.31

1.25

1.19

1.13

1.25

1.36

39.57

1.28

1.98

121

Jan.

1.19

1.02

.96

.90

.85

.85

.80 iToe

3.0

2.3

1.76

3.0

T796

1.62

1.56

1.49

1.42

1.42

1.36

1.31 

1.31

1.25

1.25

1.49

2.2

1.90

1.63

2.3

1.76

2.05

50.12

1.62

2.51

154

Feb.

1.69

1.76

2.6

2.85

1.90

1.83

1.76

2.3

1.96

1.69

1.62

1.69

1.62 

1.87

2.2

*2.25

2.75

5.4

3.3

4.0

2.5 

2.6

2.55

4.2

5.8

.80

.02

702

.02

 

65.55

2.26

3.50

201

Mar.

0.02

.02

.05

.09

.13

.09

.09

.09

.09

.09

.10

.10

.10 

.09

.09

.09

.10

.11

.08

.09

.10 

.13

.07

.08

.08

.08

.11

.14

.16

.14

.16

2.96

0.095

0.147

9.1

Apr.

0.21

.19

..02

.02

.03

.05

.04

.08

.05

.07

.05

.07

.07 

.07

.08

.09

.09

.10

.11

.16

.13 

.11

.14

1.15

1.69

1.76

1769

1.56

1.56

1.76

-

13.20

0.440

0.681

41

May

1.90

1.90

2.1

1.90

1.96

2.55

3.8

370

2.6

2.5

2.85

2.95

2.7 

2.85

2.05

1.83

1.76

2.1

2.3

2.3

1.90 

1.76

1.69

1.91

2.1

1.96

1.76

*1.62

T7§6

2.2

2.25

69.01

2.23

3.45

212

June

2.25

2.8

3.15

2.6

2.5

2.6

2.25

2.1

2.25

2.7

2.3

3.55

3.4 

3.15

2.3

1.96

1.90

1.83

1.83

1.76

T75o

2.25

2.6

1.90

1.76

1.69

1.69

1.69

2.3

68.65

2.29

3.54

211

Calendar year 1955: Max 6.6 Min 0.70 Mean(mgd) 1.95 Mean(cfs) 3.02 Ac-ft 2,190

Fiscal year 1955-56: Max 5.8 Mln 0.02 Mean(mgd) 1.60 Mean(cfs) 2.48 Ac-ft 1,800

Discharge measurement made on this day.
ISLAND OF MAUI 111

Haipuaena Stream above Spreckels ditch, near Huelo

Location. Lat 20°51'05", long 156°11'30", on left bank 200 ft upstream from Spreckels 

ditch, 2.8 miles west of Keanae, 3.3 miles southeast of Kailua, and 4.7 miles southeast 

of Huelo.

Drainage area. 1.1 sq mi.

Records available . October 1913 to June 1956. Prior to July 1954, published as Haipuaena 

Stream near Huelo. December 1910 to September 1913 at site 600 ft downstream; records 

not equivalent owing to inflow from Spreckels ditch.

Gage. Water-stage recorder. Datum of gage is 1,512.22 ft above mean sea level (East Maul 

Irrigation Co. bench mark).

Average discharge . 40 years (1916-56), 9,,,73 mgd (15.1 cfs).

Extremes.--Maximum discharge during year, 1,110 mgd (1,720 cfs) Feb. 25 (gage height, 

6.95 ft), from rating curve extended above 47 mgd by logarithmic plotting; minimum, 

0.12 mgd (0.19 cfs) Nov. 9.

1913-56: Maximum discharge, 6,100 mgd (9,440 cfs) Aug. 12, 1940 (gage height, 

6.91 ft), from rating curve extended above 150 mgd; minimum, slightly less than 0.1 mgd 

(about 0.2 cfs) several days during January, February, May, June 1945 and October 1953.

Remarks. Records fair prior to Nov. 9, good thereafter. Haipuaena diversion ditch 

diverts water above station (see preceding page).

Rating tables, fiscal year 1955-56, except periods of indefinite stage-discharge 

relation (gage height, in feet, and discharge, in million gallons a day)

July 1 to Nov. 8 Nov. 9 to June 30

1.3

1.4

1.5

1.6

1.7

1.8

0.04 

.21 

.58

1.03

1.73

£.6

1.9 

2.1 

2.3 

2.5 

Z.I 

3.0

1.3

1.4

1.5

1.6

1.7 

1.9 

£.1

O.O4 

.18 

.49

1.00

1.75

4.0

7.5

£.4 

£.7 

3.0 

3.5 

4.0 

4.5 

5.0

16.0

30

50

99 

167 

£65 

410

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cfs

Ac-ft

July

1.65

1.09

.94

5.7

4.8

2.45

1.03

.74

778

1.53

.78 

4.2 

29.5

6.5

7.3

7.1

4.2

7.5

4.8

3.95

2.15

1.73

2.5-

2.75

8.5

5.5

29

20.5

14.5

7.5 

42

233.17

7.52

11.6

716

Aug.

7.7

11.2

*15.2

6.6

5.7

4.1

2.6

6.0

19.1

28.5

18.9 

11.4 

5.0

3.4

4.6

3.45

13.6

4.7

16,6

9.2

3.15

2.5

6.0

13.7

4.9

9.0

4.8

2.8

2.25

2.4 

3.35

252.40

8.14

12.6

775

Sept.

12.6

8.3

4.7

3.7

2.6

2.15

1.81

1.36

1.09

.98

.83 

.70 

1.81

1.44

*4.4

1.82

1.03

3.55

2.15

.93

e.80

e.72

e.68

e.64

e.62

e.66

*e.60

el72~

e6.5

eg.l

72.47

2.42

3.74

222

Oct.

1.52

4.2

3.65

-978 16.2

8.8

3.85

2.25

1.65

1.70

2.05 

1.22 

1.16

.98

.66

e.58

e.50

e.42

e.35

e.33

e.31

e.30

e.65

e.80

e.52

*e.35

e.30

e.26

e.23

e.22 

e.21

66.02

2.13

3.30

203

Nov.

e0.2O

e.20

e.21

e.19

e.17

e.15

e.14

e.13

02.

12.4

1.04 

.35 

.18

.42

.63

.53

2.25

1.57

4.5

10.5

"876 13.8

3.5

5.4

2.5

1.51

1.21

1.00

.78

.68

74.86

2.50

3.87

230

Dec.

0.49

.38

.32

.26

.23

.23

.23

.26

.20

.20

.33 

.45 

.20

.18

718

.18

.18

.18

.20

18.3

51

-3.75

.84

.63

.45

.32

.26

.20

.20

.40 

1.24

82.47

2.66

4.12

253

Jan.

0.38

.26

.23

.20

*.18

.18

.18

.24

24

8.0

2.2 

33.5 

27.5

4.1

1.55

1.07

.83

.63

.49

.38

.35

.29

.23

.20

.85

*13.2

3.7

1.01

11.4

2.2 

4.5

144.03

4.65

7.19

442

Feb.

1.74

2.55

14.2

18.7

2.8

1.79

2.55

13.1

' 3.45

1.51

Uki 

1.53 

1.14

2.85

6.2

6.3

26

147

33

65

11.7

12.6

15.2

57

292

210

69

24

12.8

1,056.85

36.4

56.3

3,240

Mar.

7.8

5.6

4.6

4.0

3.75

3.4

3.0

2.75

2.55

2.3

2.65 

2.3 

2.3

6.0

2.55

2.0

2.95

6.2

3.95

2.55

2.0

7.2

7.9

10.9

14.6

4.8

3.65

3.4

15.1

8.9 

4.0

155.65

5.02

7.77

478

Apr.

15.3

90

24.5

9.6

5.1

14.6

10.7

9.9

*36.5

51

21 

24.5 

25.5

6.9

11.9

11.6

10.5

5.3

4.5

22.5

19.2

8.1

6.3

3.65

2.3

2.75

2.25

1.59

3715

462.20

15.4

23.8

1,420

May

4.8

4.7

7.0

4.2

5.4

15.0

52

27.5

18.7

14.8

25 

24.5 

20.5

22.5

6.5

4.6

3.75

9.0

11.9

10.8

5.4

3.5

2.9

5.2

6.7

5.0

3.4

2.45 675-

9.2 

9.6

353.00

11.4

17.6

1,080

June

9.7

23

32

17.1

12.1

15.5

9.7

7.1

8.3

20

12.0

44 

40

29.5

11.1

5.8

4.8

4.5

4.0

3.5

2.75

4.1

7.8

15.2

4.6

3.25

2.65

2.4

2.15

11.6

370.20

12.3

19.0

1,140

Calendar year 1955: Max 129 Min 0.12 Mean(mgd) 7.15 Mean(cfs) 11.1 Ac-ft 8,010

Fiscal year 1955-56: Max 292 Min 0.12 Mean(mgd) 9.08 Mean(cfs) 14.0 Ac-ft 10,200

Peak discharge (base, 750 mgd). Feb. 25 (8 p.m.) 1,110 mgd (1,720 cfs), 6.95 ft.

* Discharge measurement made on this day.

e Stage-discharge relation indefinite} discharge estimated on basis of records for Waiakamoi 

Stream.
112 ISLAND OP MAUI

Spreckels ditch at Haipuaena weir, near Huelo

Location. Lat 20°51'20", long 156°11'25", on left bank near Spreckels ditch trail between 

Haipuaena and Puohokamoa Streams, 2.5 miles west of Keanae, 3.5 miles southeast of 

Kailua, and 4.5 miles southeast of Huelo.

Records available. April 1922 to June 1956. May 1919 to April 1922 in files of East 

Maul Irrigation Co.

Gage. Water-stage recorder and sharp-crested weir. Datum of gage is 1,470.96 ft above 

mean sea level (East Maul Irrigation Co. bench mark). Apr. 29, 1922, to Feb. 19, 

1930, at same site at different datum. Feb. 20, 1930, to Oct. 25, 1935, at site 

100 ft upstream at different datum.

Average discharge. 33 years (1922-29, 1930-56), 13.3 mgd (20.6 cfs).

Extremes. 1922-56: Maximum daily discharge, 97 mgd (150 cfs) Feb. 10, 1955, Feb. 18, 

1956; no flow at times.

Remarks. Records excellent except those for period of no gage-height record, which are 

poor. Flow regulated by gates and spillways. Spreckels ditch diverts water from all 

streams between Nuaailua and Kailua Streams, above Koolau ditch east of Puohokamoa and 

below Koolau ditch west of Puohokamoa. About 4 mgd is diverted from Spreckels ditch 

to East Maul Irrigation Co.'s hydroelectric plant at Kolea Gulch. Water used for 

irrigation in central Maul.

Revisions (fiscal years). WSP 770: 1932-33.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

8.3

5.8

5.9

18.9

14.1

10.3

5.5

4.2

570

9.0

4.4

16.2

50

21.5

25

25

19.5

25.5

19.9

17.6

10.2

8.8

10.6

12.4

25.5

21.5

50

41

31

22.5

45

587.7

19.0

29.4

1,800

Aug.

18.6

25

*27.5

16.6

17.7

14.7

10.2

18.5

38

45

57.5

27.5

17.7

12.9

17.0

13.5

27.5

16.9

27.5

21.5

11.7

9.9

22

31.5

19.5

25.5

18.1

11.7

8.8

10.7

14.1

632.4

20.4

31.6

1,940

Sept.

32

26.5

18.5

15.4

10.7

9.4

8.0

5.8

4.7

3.9

3.55

2.9

*8.8

7.6

19.8

9.6

5.3

16.7

9.6

4.7

3.9

5.35

2.4

1.75

1.56

2.4

5.5

5.5

12.2

6.6

266.01

8.87

15.7

816

Oct.

5.8

9.1

8.1

22.5

15.2

21.5

16.0

10.2

8.0

8.1

10.4

6.2

5.8

5.6

5.5

2,9

2.15

1.65

1.45

1.20

.84

.66

4.0

*3.85

2.05

1.05

.42

.26

.25

.20

720

179.11

5.78

8.94

550

Nov.

0.17

.20

.25

.20

.17

.17

.17

.17

.15

24

4.1

1.61

.26

2.5

5.9

2.5

10.6

7.2

10.2

26

50

25.5

14.8

18.2

10.1

6.0

5.1

4.2

7.7

2 95

216.85

7.25

11.2

665

Dec.

1.75

1.10

.72

.42

.34

.30

.49

.66

.26

.30

1.65

1.78

.30

.30

.30

.26

.30

.26

.30

55.5

55

a3.0

a. 60

a. 53

a. 50

a. 26

aTit

a. 25

a. 40

a25

130.87

4.22

6.55

402

Jan.

a3.5

al.7

al.O

a. 55

.50

.50

.50

1.69

44

24.5

8.0

42

44

15.7

5.5

5.5

2.4

1.45

.98

.66

.51

.42

.38

.54

4.5

27.5

12.0

4.1

29

9.1

20.5

507.98

9.93

15.4

945

Feb.

7.9

10.1

30.5

56

9.8

7.6

10.8

23.5

11.5

5.5

4.2

9.2

4.6

12.5

22

21

54.5

91

40

62

19.7

27.5

29.5

75

59

.72

.35

8.0

10.2

687.57

25.7

36.7

2,110

Mar.

13.0

11.3

8.5

6.2

5.5

5.1

4.7

4.0

5.75

2.9

4.9

3.5

2.6

15.9

4.1

2.4

5.6

8.8

7.9

4.4

2.8

15.2

20

25.5

50

12.0

7.8

7.8

27

s'.e

299.05

9.65

14.9

918

Apr.

18.3

64

35

20.5

12.9

26.5

24.5

21.5

47

57

51.5

36.5

51

15.5

17.7

17.9

15.4

9.9

5.9

25

26

11.7

9.6

8.5

7.8

9.1

3.35

0

0 

10.5

615.65

20.5

51.7

1,880

May

17.7

17.8

22

16.0

18.6

52.5

68

46

36

52.5

58

42

36.5

42

22

17.3

15.0

22.5

29.5

28.5

19.3

15.6

10.4

15.7

25

19.3

12.3

8.0

24.5

26.5

794.0

25.6

59.6

2,440

June

26

42

55

35

50

55

25.5

22.5

24.5

56.5

27

60

50

42

25

18.1

17.3

16.2

15.0

15.9

10.7

15.5

24

35

16.2

12.0

10.4

10.1

9.2 

51

786.6

26.2

40.5

2,410

Calendar year 1955: Max 97 Min 0.15 Mean(mgd) 14.9 Mean(cfs) 23.1 Ac-ft 16,700

Fiscal year 1955-56: Max 97 Min 0 Mean(mgd) 15.0 Mean(cfs) 23.2 Ac-ft 16,880

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Manuel Luis ditch and 

Haipuaena Stream.
ISLAND OF MAUI 113

Koolau ditch at Halpuaena, near Huelo

Location. Lat 20°51'15", long 156°11'15", on right bank 1,000 ft upstream from Intake at 

Puohokamoa Stream, 3.5 miles southeast of Kallua, and 4.7 miles southeast of Huelo.

Records available.--Apr11 1932 to June 1956.

Gage.--Water-stage recorder and Parshall flume. Prior to Mar. 21, 1933, at datum 1.94 ft 

lower and Mar. 21, 1933, to Mar. 20, 1935, at datum 0.25 ft lower than present datum.

Average discharge. 24 years, 79.9 mgd (124 cfs).

Extremes. 1932-56: Maximum dally discharge, 193 mgd (299 cfs) Jan. 17, 1946; no flow 

Feb. 14-28, Mar. 7-18, 1933, Feb. 26 to Mar. 22, 1935.

Remarks. Records excellent except those for period of no gage-height record, which are 

fair. Flow regulated by floodgates. Water used for domestic supply and Irrigation In 

central Maul.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

Day

1

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean:

mgc

cfs

Ac-ft

July

52

42

41

86

51

44

37

35.5

37

46

37

78

176

116

128

12O

87

132

98

104

59

52

50

52

114

100

166

167

122

134 

163

2,726.5

88.0

136

8,370

Aug.

125

138

158

119

112

SO

67

101

169

176

172

153

112

85

117

94

161

104

99

130

76

67

1O5

150

102

137

96

76

63

72 

82

3,498

113

175

10,730

Sept.

T3S" 161

94

85

67

67

63

55

52

48

44

42

56

*56

108

63

48

84

52

44

41

39

37

35.5

3±

35.5

39

53

117

72

1,930.0

64.3

99.5

5,920

Oct.

58

100

94

178

162

145

87

67

59

52

52

50

46

42

39

37

35.5

34

32.5

31

31

29.5

34

31

32.5

31

28

26.5

25

octo 

23.5

1,718.0

55.4

85.7

5,270

Nov.

23.5

23.5

23.5

22

20.5

20.5

19.4

19.4

19.4

124

42

26.5

23.5

42

37

35.5

75

59

67

138

m155

105

122

69

52

50

52

46

48

1,731.2

57.7

89.3

5,310

Dec.

41

35.5

34

32.5

31

29.5

28

28

26.5

25

29.5

28

25

22

22

20. 5

2475"

28

21.5

160

163

68

44

37

32.5

29.5

29.5

26.5

25

32

105

1,284.0

41.4

64.1

3,940

Jan.

Ill

52

39

34

31

29.5

28

34

169

102

48

130

159

74

59

48

42

37

34

32.5

29.5

29.5

28

26.5 58 

139

83

66

132

59 

73

2,016.5

65.0

101

6,190

Feb.

59

60

144

159

80

67

78

102

59

48

72

92

61

84

136

*136

133

190

164

183

164

169

169

190

183

183

160

110

150

3,585

124

192

11,000

Mar.

150

140

110

90

95

80

75

76

74

68

74

65

62

12O

65

55

76

72

65

56

52

87

120

140

160

85

84

77

130

135

82

2,820

91.0

141

8,650

Apr.

95

145

148

150

99

127

148

118

176

190

183

183

169

137

164

133

130

85

76

124

176

155

142

99

80

72

67

59

~na 55

oy

3,774

126

195

11,580

May

93

93

126

90

105

170

190

183

176

171

176

183

183

176

143

113

94

123

159

169

108

80

76

90

124

93

67

63

120

128

148

4,013

129

200

12,320

June

130

173

183

176

169

176

149

137

150

176

167

183

183

176

162

137

119

110

99

94

76

85

122

169

102

80

76

72

63

15T

4,045

135

209

12,410

Calendar year 1955: Max 183 Min 19.4 Mean(mgd) 84.2 Mean(cfs) 130 Ac-ft 94,310 

Fiscal year 1955-56: Max 190 Min 19.4 Mean(mgd) 90.5 Mean(cfs) 14O Ac-ft 101,700

* Discharge measurement made on this day.

Note. No gage-height record Feb. 26 to Apr. 4; discharge estimated on basis of records for 

itation at Keanae and Walloa ditch at Honopou.
114 ISLAND OF MAUI

Puohokamoa Stream above Spreckels ditch, near Huelo

Location. Lat 20°51'20", long 156°11'25", on right bank 650 ft upstream from Spreckels 

ditch inflow and trail crossing, 3.2 miles southeast of Kailua, and 4.4 miles southeast of Huelo.

Drainage area. 2.6 sq mi.

Records available. June 1913 to June 1956. Prior to July 1954, published as Puohokamoa 

Stream near Huelo. December 1910 to May 1913 at site 700 ft downstream; records not 

equivalent due to inflow of Spreckels ditch.

Gage . Water-stage recorder and masonry control. Datum of gage is 1,322.04 ft above mean 

sea level (East Maul Irrigation Co. benchmark). Prior to May 31, 1934, water-stage 

recorder at site 130 ft downstream at different datum.

Average discharge. 39 years (1917-56), 21.0 mgd (32.5 cfs).

Extremes. Maximum discharge during year, 1,310 mgd (2,030 cfs) Feb. 25 (gage height, 

7.14 ft), from rating curve extended above 400 mgd as explained below; minimum, 

1.28 mgd (1.98 cfs) Dec. 18, 19.

1913-56: Maximum discharge, 1,600 mgd (2,480 cfs) Aug. 12, 1940 (gage height, 

7.81 ft), from rating curve extended above 400 mgd by logarithmic plotting; minimum, 

0.1 mgd (0.2 cfs) Nov. 17, 1929.

Remarks. Records good except those above 400 mgd, which are fair. Kula pipeline diverts 

small amount of water above station, at altitude 4,300 ft, for domestic supply.

Rating tables, fiscal year 1955-56 (gage height. In feet, and discharge, 

In million gallons a day)

July 1 to Nov. 17 Nov. 18 to June 3O

O.6 

.7

1.0 

1.2 

1.4

1.19

2.05

3.2

5.0

8.7

15.5

28

1.8

1:1 3.0 

3.5 

4.0 

5.0

63

115

165

252

340

440

675

O.6 

.7

0.75

1.75

3.10

0.9 

1.0 

1.2

5.1O 

7.90 

15.5

Note. Same as preceding 

table above 1.2 ft.

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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 

3O

31

Total

Mean:

mgc

cfs

Ac-ft

July

5.6

4.1

3.95

15.9

9.7

8.1

4.3

3.65

3.75

5.7

3.65

12.2

66

18.6

21.5

21

13.4

22

14.3

12.4

7.9

6

5.2

8.1

24.5

14.7

77

50 

35 

21.5

86

6O5 . 70

19.5

30.2

1,860

Aug.

20. 5

27.5

43

17.4

14.9

11.8

9.0

18.8

47

67

48

30

14.4

11.5

14.3

11.6

36

14.2

32

22.5

10.9

9.6

17.7

35.5

15.2

26

14.4

10.3

fta . c. 

9.1

676.5

21.8

33.7

2,O8O

Sept.

33

21

13.3

11.1

8.2

7.2

6.0

5.0

4.3

3.95

3.65

3.5

5.9

5.1

*12.2

5.6

3.95

7.1

6.3

3.5

3.1

2.95

*2.7

2.6

2.5

2.85

3.1

5.4 

16.9 

7.0

218.95

7.30

11.3

672

Oct.

5.0

12. 0

11.0

42

26

23.5

11.8

7.9

6.0

5.4

6.3

4.1

3.95

3.65

3.2

3.1

2.85

2.6

2.6

2.5

2.4

2.4

3.6

3.65

2.7

*2.4

2.15

2.05 

1.97

T78T

212.51

6.86

1O.6

652

Nov.

1.87

1.97

1.87

1.77

1.68

1.59

1.59

1.59

1.51

2T7S4.0

2.5

2.05

2.7

2.85

2.7

6.6

5.2

14.7

23.5

34

21.5

9.2

13.0

6.4

4.4

3.8

3.45 

3.1 

2.95

205.54

6.85

1O.6

631

Dec.

2.55

2.4

2.25

2.15

2.0

1.88

1.88

2.15

1.75

1.75

2.4

2.55

1.88

1.62

1.50

1.39

1.39

1.28

1728"

31

~8.2 105

4.2

3.6

3.1

2.8

2.55

2.15 

1.88 

2.4

4.6

2O7 . 53

6.69

1O.4

637

Jan.

2.4

2.0

1.75

1.75

*1.50

1.62

1.50

1.97

58

21.5

6.7

63

54

10.2

5.4

4.2

3.6

2.95

2.65

2.4

2.25

2.25

2.15

2.0

3.45

39

9.9

5.1 

30.5

6.7 

12.2

364.59

11.8

18.3

1,120

Feb.

5.6

7.9

31

33.5

7.9

5.4

7.3

33

8.8

4.8

4.O

4.0

3.8

7.3

16.0

17.2

53

299

62

143

30

34

35.5

148

542

482

172

73 

35

2,3O6.0

79.5

123

7,080

Mar.

20

14.7

11.8

1O.2

9.2

7.6

6.7

6.4

5.8

5.1

5.8

4.8

5.1

12.6

5.4

4.4

5.4

13.0

8.8

4.8

4.2

15.1

18.2

26

55.5

9.4

6.7

6.4 

32

18 . 2 

7.6

346.9

11.2

17.3

1,060

Apr.

35

208 -58

22.5

12.2

35.5

24.5

21

7O

122

51

65

50

17.2

30.5

28

23.5

12.2

9.9

53

42

18.3

14.3

9.6

7.9

8.8

7.9

6.1

e

1,078.9

36.0

55.7

3,310

May

13.9

13.4

19.5

11.8

14.3

37

~66 118

46

39.5

63

76

55

59

19.4

13.9

11.8

24

31

28

14.6

10.2

8.8

14.7

19.8

14.5

9.9

if*

24 . 5 

26.5

929.2

30.0

46.4

2,850

June

27.5

53

75

47

37.5

42

26

19.9

24

52

32.5

98

100

70

31

17.7

15.5

14.7

13.0

11.0

8.8

12.2

22.5

42

13.7

9.9

8.5

7.9 

7.3

31

971.1

32.4

50.1

2,980

Calendar year 1955; Max 275 Mln 1.28 Mean(mgd) 19.1 Mean(cfs) 29.6 Ac-ft 21,39O 

Fiscal year 1955-56: Max 542 Mln 1.28 Mean(mgd) 22.2 Mean(cfs) 34.3 Ac-ft 24,930

Peak discharge (base, 750 mgd). Feb. 25 (9 p.m.) 1,310 mgd (2,030 cfs), 7.14 ft. 

* Discharge measurement made on this day.
ISLAND OP MAUI 115

Manuel Luis ditch at Puohokamoa Gulch, near Huelo

Location. Lat 20°51'50", long 156°11'00", on right bank at lower portal of tunnel between 

Haipuaena and Puohokamoa Streams, 2.1 miles west of Keanae, 3 miles southeast of Kailua, 

and 4.4 miles southeast of Huelo.

Records available. December 1917 to June 1956.

Gage. Water-stage recorder and sharp-crested weir.

Average discharge. 37 years (1918-24, 1925-56), 5.69 mgd (8.80 cfs).

Extremes. 1917-56: Maximum daily discharge, 68 mgd (105 cfs) for one or more days in 

1938, 1941, 1942, 1947, 1948, 1950, 1956; no flow at times.

Remarks. Records good. Ditch is extension of Center ditch and picks up water at altitude 

of 500 ft from streams between Kolea and Waiakamoi Streams. Flow regulated by gates. 

Water used for irrigation in central Maul.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

1.46

1.23

1.15

4.3

1.65

1.64

1.23

1.O8

1.18

1.88

1.31

2.6

9.4

3.55

4.7

4.2

3.25

5.2

2.9

3.4

1.99

1.80

1.89

1.99

4.0

3.3

13.5

9.5

5.4

4.5

126.18

4.O7

6.3O

387

Aug.

3.9

9.2

9.9

4.9

4.5

3.45

2.55

4.0

S.2

12.0

15.0

7.0

3.9

3.1

4.0

3.0

5.7

4.4

6.5

6.9

2.9

2.45

3.8

6.2

3.45

4.5

2.9

2.25

1.99

2 . 35

2.55

157.44

5.08

7.86

483

Sept.

10.2

4.5

3.45

3.65

2.45

2.35

2.25

1.S9

1.70

1.61

1.61

1.38

1.63

*1.46

3.S5

1.46

1.08

2.35

1.26

.85

.85

.79

.74

.68

.62

.74

.68

1.34

1.90

l.OO

60.32

2.01

3.11

185

Oct.

1.00

1.53

1.53

8.8

5.3

4.8

2.4

1.53

1.38

1.3S

1.46

1.08

1.08

l.OO

.85

.85

.79

.74

.74

.82

.68

.62

1.00

.85

*.85

.74

.62

.51

.39

.34

.34

46. OO

1.48

2.29

141

Nov.

0.34

.39

.39

.25

.22

.22

.25

.28

.25

3.15

.89

.68

.45

.74

1.00

1.00

1.99

1.40

1.97

3.1

8.1

4.6

2.55

2.95

1.53

1.00

1.00

1.O8

1.15

1.15

44.77

1.49

2.31

137

Dec.

0.85

.74

.68

.62

.51

.45

.39

.51

.39

.34

.56

.56

.39

.28

.28

.28

.39

.34

.28

4.2

16.2

1.39

.74

.56

.51

.45

.39

.39

.39

.64 

7.7

42.40

1.37

2.12

130

Jan.

1.46

l.OO

.79

.74

.62

.62

.62

.73

12.5

2.8

1.31

10.7

7.4

1.80

1.31

1.15

1.00

.85

.79

.74

.68

.62

.56

.56

1.08

17.9

5.6

3.7

8.1

2 35

93.63

3.02

4.67

287

Feb.

2.1

5.5

4.5

3.85

2.1

 §73- 1 70

9.8

3.05

2.15

1.S9

3.2

1.80

3.6

6.O

6.5

10.3

60

10.5

31.5

5.0

4.6

*7.5

46

62

68

68

54

41

535.44

18.5

28.6

1,640

Mar.

16.4

5.4

4.5

3.75

3.25

2.9

2.55

2.35

2.25

1.89

2.35

2.1

1.8O

3.75

1.80

1.46

1.38

2.4

2.55

1.70

1.53

5.8

7.2

5.5

10.7

3.1

2.9

2.35

 

17.1 9 8

s!o

137.51

4.44

6.87

422

Apr.

15.0

64

22.5

7.7

4.2

11.5

6.8

4.3

13.3

24.5

10.7

10.8

6.0

1.70

2.45

3.1

4.6

1.46

5.2

19.1

17.2

4.6

3.1

2.25

1.80

2.25

4.6

6.0

5.8

4.7

291.21

9.71

15.0

894

May

1.70

1.46

3.35

1.91

2.05

9.2

33

15.1

9.9

10.1

11.4

13.2

12.8

16.1

5.S

4.0

3.0

7.4

6.1

6.2

3.0

2.35

2.15

5.1

*4.1

3.2

2.15

2.95

3.65

3 95 

4^4

210.77

6.8O

10.5

647

June

4.5

7.9

14.9

8.6

5.3

7.1

3.8

3.85

3.55

10.7

4.9

IS. 3

12*5

4.7

3.3

3.65

3.45

2.55

2.25

1.80

2.25

4.0

6.3

2.2

1.61

1.46

1.53

1.15

8.5

176.40

5.88

9.10

541

Calendar year 1955: Max 64 Min 0.20 Mean(mgd) 4.6O Mean(cfs) 7.12 Ac-ft 5,140

Fiscal year 1955-56: Max 68 Min 0.22 Mean(mgd) 5.25 Mean(cfs) 8.12 Ac-ft 5,890

Discharge measurement made on this day.
ISLAND OF MAUI

Waiakamoi Stream above reservoir at Kula pipeline intake, near Olinda

Location. Lat 20°48'30", long 156°14 I 00", on left bank 1,500 ft upstream from Kula pipeline at Waiakamoi intake and 3.0 miles east of Olinda.

Drainage area.--2.36 sq mi.

Records available. July 1954 to June 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 4,487 ft above mean 

sea level (levels by Maul County Waterworks).

Extremes. 1953-54: Maximum discharge during fiscal year, 80 mgd (124 cfs) Jan. 5 (gage 

height, 2.30 ft); no flow at times.

1954-55: Maximum discharge during fiscal year, 1,680 mgd (2,600 cfs) Dec. 10 (gage 

height, 8.16 ft), from rating curve extended above 6.4 mgd on basis of computation of 

flow over dam; minimum daily, 0.01 mgd (0.02 cfs) Nov. 20-24, 27, 28.

1955-56: Maximum discharge during fiscal year, 365 mgd (565 cfs) Jan. 12 (gage 

height, 4.22 ft), from rating curve extended above 6.4 mgd as explained above; no flow 

at times.

Remarks. Records good except those above 10 mgd, which are fair and those for period of 

no gage-height record, which are fair.

Rating table, July 31, 1953, to June 30, 1956 (gage height, in feet; and 

discharge, In million gallons a day)

o.o 

.1 

.2 

.3 

.4 

.6 

.8

1.0

0

.01

.05

.14

.28

.74

1.70

6.2

1.2 

1.5 

2.0 

2.5 

3.0 

3.5 

4.0

12.5

25

56

100

160

235

325

Discharge, In million gallons a day, fiscal year July 1953 to June 1954

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

Mean:

mgd

cfs

Ac-ft

July

0.03

-

-

-

-

Aug.

0.06

5.0

.86

.19

.10

.21

.64

.23

.09

.06

.05

.05

.07

.05

.04

.03

^02

.03

.02

.02

.02

.10

.11

.09

.08

.05

.03

.02

.02 

.02

.04

8.40

0.271

0.419

26

Sept.

0.05

.04

.07

.08

.05

.04

.03

*.02

.05

.12

.04

.04

.02

.02

.02

^01

.01 

.01

.01

.02

.02

.01

.01

.02

.02

.02

.02

.02

.03

.04

0.96

0.032

0.050

2.9

Oct.

O.O4

.02

.02

.01

.01

.01

.01

.01

.01

0

.01

.01

.01

.01

.01

2.25

1.07 

.12

.07

.04

.04

.03

.03

.02

.02

.02

.02

.01

.01

.01 

.02

3.97

0.128

0.198

12

Nov.

0.03

.03

.02

.02

.01

.01

.01

.03

.14

.06

.23

.05

.03

.02

.02

1.06

2.95 

.30

1.53

.48

.11

.05

.04

.45

2.4

.45

.11

.07

.04

.04

10.79

0.360

0.557

33

Dec.

O.O4

.10

.08

.07

.23

.40'

.20

.11

*.07

.05

.05

.05

.04

.03

.03

.03

t§

.03

.02

.14

.21

.07

.04

.03

.03

.44

741

.37

.13

.08

3.63

0.117

0.181

11

Jan.

0.18

.08

.05

.04

19

1.24

.41

.25

.14

.08

.05

.04

.03

.03

.03

.03

.02 

.02

.02

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01 

.01

31.86

1.03

1.59

98

Feb.

0.01

.01'

.01

.01

.01

.01

.01

.01

.01

.01

.01

.03

.01

.01

.01

.01

.01 

0

0

.01

.01

.02

.03

.04

.47

.28

.14

.07

-

_______

1.26

0.045

0.070

3.9

Mar.

O.O5

.36

.16

2.15

^9

2.5

3.5

1.90

*2.25

2.9

1.24

.86

.28

.12

.09

.08

.08 

1.03

.30

.11

.34

.38

.25

.22

.09

.05

.04

.03

.03

^02 

.02

31.33

1.01

1.56

96

Apr.

0.02

.04

.09

.08

.04

.03

.02

.02

.02

.02

.02

.02

.02

.01

.01

.02

8.3 

~89.6

.20

*.08

.05

.05

.04

.03

.03

.03

.02

.02

.04

19.65

0.655

1.01

60

May

O.O6

.06

.47

2.8

.62

1.40

.56

.22

.11

.06

.05

.09

.07

.09

.07

.05

.09 

1.12

7.0

1.22

.37

.73

1.22

.48

.37

.48

1.50

5.4

.92

.39 

.70

28.77

0.928

1.44

88

June

0.71

.30

.14

.08

*.05

.05

.20

.18

.14

.09

.05

.04

.04

.03

.03

.03

.03 

.03

.03

.10

.10

.04

.15

.33

.25

.11

.11

.37

.39

^80

5.00

0.167

0.258

15

Calendar year Max Mln Mean(mgd) Mean(cfs) Ac-ft

Fiscal year : Max Mln Mean(mgd) Mean(cfs) Ac-ft

Peak discharge (base, 130 mgd). No peak above base.

Discharge measurement made on this day.
ISLAND OP MAUI

Waiakamoi Stream above reservoir at Kula pipeline Intake, near Olinda Continued 

Discharge, In million gallons a day, fiscal year July 1954 to June 1955

117

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

Meanmgd

cfs

Ac-ft

July

0.54

~4T4 11.0

3.65

1.25

.40

.16

.08

li

.64

1.86

.67

.44

.14

.89

2.7

2.95

.59

.75

.26

.34

1.26

1.00

2.05

4.2

*3.0

8.4

3.95

1.12

.45

59.42

1.92

2.97

182

Aug.

0.30

.16

.11

2.1

.52

.22

.13

.11

if

.12

2.55

l!63

.68

.55

.76

.50

1.48

.81

.72

.51

2.25

.52

.22

.39

.42

.18

.40

. 13

.10

19.32

0.623

0.964

59

Sept.

0.07

.05

.04

^03

.04

.08

.16

.11

.10 

*.06

.04

.03

.04

.04

.04

.04

4.7

5.9

1.82

.40

.19

.14

.08

.12

.66

.32

.14

.08

.05

.04

15.61

0.520

0.805

48

Oct.

0.03

.02

.02

.04

.03

.04

.04

.04

.34 

1.S8

.30

.09

.05

.04

.04

.05

.03

.03

.03

.07

.18

.05

.04

.03

.03

*.21

.12

.05

.04

.03

.02

3.71

0.120

0.186

11

Nov.

0.02

.02

.02

.02

.02

.03

1.69

.32

.10 

.17

.07

.05

.04

.03

.03

.03

.02

.02

.02

.01

.01

.01

.01

.01

.02

.02

.01

.01

.15

.07

3.05

0.102

0.158

9.4

Dec.

0.09

2.4

1.94

.35

.23

2.4

12.3

27.5

86 

506

80

100

25

55

5.0

9.0

1.5

.60

.20

.22

15

4.0

1.5

.40

.14

.70

2.0

2.2

.80

5.5

1.3

727.77

25.5

56.4

2,250

Jan.

1.6

1.0

.80

.80

.52

.20

.12

.08

.05 

.04

.04

.05

.04

.05

.06

.04

.04

.03

.02

752

3.95

1.07

.22

.08

.05

fit

1.04

.33

0

.12

25.12

0.810

1.25

77

Feb.

0.07

.05

.08

.05

.04

.04

.35

3.7

1.94 

29

57

3.9

7.3

1.45

1.04

.48

.39

5.0

41

9.9

.97

.39

.71

.80

.40

.24

1.96

.40

-

168 .'65

6.02

9.31

518

Mar.

0.20

.09

.05

.04

.11

1.43

.80

*.23

.12 

6.8

~475 11.5

1.04

.48

.86

10.4

1.06

.59

.25

.92

.56

.26

2.1

.42

.20

.09

.05

.04

ti

.07

45.10

1.45

2.24

158

Apr.

0.18

.16

.28

.30

.12

.08

.06

.04

.04 

.03

.02

.02

.02

.04

.06

.05

.69

5.0

*6. 5

.85

.55

.60

.76

.74

1.17

1.85

.80

.42

6.5 

1 53 ' ' '

29.46

0.982

1.52

90

May

0.41

.26

3^15

2.35

.52

.25

.35

.20

.24 

.28

.14

.12

.18

.11

.08

.16

.12

.12

.91

2.05

.67

.30

.35

1.38

1.03

1.65

.78

.31

.20 

.10

^

18.83

0.607

0.939

58

June

0.04

.04

.04

.50

.54

.13

.06

.04

.04 

.05

.05

.04

.04

.04

.07

.12

.10

.05

.42

.23

.09

.05

.08

.08

.05

.05

.04

.04

.12

.10

3.54

0.111

0.172

10

Calendar year 1954: Max 306 Mln 0 Mean(mgd) 2.59 Mean(cfs) 4.01 Ac-ft 2,900

Fiscal year 1954-55:, Max 306 Mln 0.01 Mean(mgd) 3.07 Moan(cfs) 4.75 Ac-ft 3,430

* Discharge measurement made on this day.

Note. No gage-height record Dec. 10 to Jan. 20; discharge estimated on basis of records for 

nearby stations.

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Total

Mean:

mgc

CfE

Ac-ft

July

0.05

.04

iff

.64

.30

.08

.05

.04

.04

.03

.16

5.0

1.09

.52

.60

.26

.14

.08

.08

.07

.06

.33

.33

.63

.89 

4.2 

3.45 

1.80 

.77 

7.5

29.45

0.950

1.47

90

Aug.

0.65

3.2

1.90 

.55

.52

.35

.16

.12

2.4

2.55

1.75

.45

.23

.12

.07

.05

1703

.37

.90

.23

.11

.37

.90

.25

.67 

.35 

.16 

.08 

.05 

*.07

25.31

0.816

1.26

78

Sept.

0.11

__51

.26 

.14

.09

.05

.05

.04

.05

.05

..02

.02

.05

.05

.09

.11

.08

.14 

.10

.04

.03

.02

.02

.02

.02

.02 

.02 

.03 

.21 

.11

2.27

0.076

0.118

7.0

Oct.

0.09

.25

.15 

.50

^60

.41

.18

.08

.04

.07

.10

*.05

.04

.04

.03

.02

.02

.02 

.01

76T

.01

.01

.02

.02

.02

.02 

.02 

.01 

.01 

.01 

.01

2.87

0.093

0.144

8.8

Nov.

0.01

.01

0 

0

0

0

0

0

0

1.04

.25

.09

.05

.04

.04

.04

.04

.04 

.12

.57

.43

.41

.14

.08

.07

.04 

.03 

.02 

.02 

.02

3.60

0.120

0.186

11

Dec.

*0.02

.02

.02 

.02

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

0

0

0 

0

63

102

3.25

.33

.13

.05

.04 

.03 

.02 

.02 

.02 

.02

169.10

5.45

8.43

519

Jan.

0.01

.01

0 

0

0

0

0

.01

.46

.20

.11

61

61

3.55

.41

*.16

' .08

.04 

.04

.03

.03

.02

.02

.02

.06

.48 

.26 

.11 

.09 

.11 

.59

128.70

4.15

6.42

395

Feb.

0.20

.11

5.6

11.1

.70

.25

.12

1.93

.58

.20

.11

.08

708

.08

.52

.23

1.48

f.5

37.5

2.35

1.29

.91

4.4

45

55 

6.8 

2.35 

.68

285.15

9.83

15.2

875

Mar.

0.57

!ll 

.07

.05

.04

.04

.05

.02

752

.02

.02

.02

.04

.05

.02

.05

.05 

.08

.08

.04

.08

.14

.20

.10

.05 

.04 

.05 

.17 

.28 

.13

2.58

0.083

Q. 128

7.9

Apr.

1.43

6.2

1.90 

.76

*.26

.26

.52

.84

8.4

7.8

1.84

1.79

4.3

.52

.26

.59

.79

.23

.11

2.05

1.15

.60.

.33

.15

.08

.08 

.09 

.06 

.04 

.04

43.47

1.45

2.24

155

May

0.08

.20 

.16

.15

.90

5^35

1.47

1.19

1.04

2.75

.80

1.34

2.35

.52

.26

.14

.23

.50

.35

.23

.11

.34

*.43

.41

.57 

.55 

.22 

.57 

.65 

.93

22.47

0.725

1.12

69

June

0.77

2.05

5.6 

1.47

.60

.65

.68

.39

.41

1.54

.84

5.6

1.40

.55

.33

.20 

.12

.09

.07

.14

.28

.57

.22

.09 

.07 

.05

40.87

1.36

2.10

125

Calendar year 1955. Max 102 Mln 0 Mean(mgd) 1.43 Mean(cfs) 2.21 Ac-ft 1,600

Fiscal year 1955-56: Max 102 Mln 0 Mean(mgd) 2.07 Mean(cfs) 3.20 Ac-ft 2,320

Peak discharge , , , ..^,_,. __.. ,. 

365 mgd (565 cfs), 4.22 ft; Feb. 18 (3 p. 

255 mgd (564 cfs), 5.5S ft.__________

* Discharge measurement made on this day.
118 ISLAND OF MAUI

Walakamol Stream above Walloa ditch, near Huelo

Location.--Lat 20°51'45", long 156°11'55", on left bank 500 ft upstream from Intake of 

Walloa ditch, 0.2 mile upstream from Spreckels ditch trail, 2.5 miles southeast of 

Kallua, and 3.8 miles southeast of Huelo.

Drainage area.--4.4 sq ml.

Records available. January 1922 to June 1956.

Gage. Water-stage recorder. Datum of gage Is 1,293.59 ft above mean sea level, datum of 

1929.

Average discharge. 34 years, 16.4 mgd (25.4 cfs).

Extremes. Maximum discharge during year, 3,330 mgd (5,150 cfs) Feb. 25 (gage height, 

9.36 ft), from rating curve extended above 470 mgd as explained below; minimum, 

0.30 mgd (0.46 cfs) Nov. 9.

1922-56: Maximum discharge, 7,040 mgd (10,900 cfs) Jan. 26, 1948 (gage height, 

12.76 ft), from rating curve extended above 470 mgd on basis of area-mean-depth study; 

minimum, 0.10 mgd (0.16 cfs) Oct. 10, 1953.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Haleakala Ranch and Kula pipelines divert small quantities of water above station. 

Water used for Irrigation In central Maul.

Revisions (fiscal years). WSP 615: 1922-24. WSP 740: 1922-31(M). WSP 1155: 1948(M) .

Rating table, fiscal year 1955-56 (gage height, In feet, and discharge, 

In million gallons a day)

0.6

.7

.8

.9

1.1

1.3

1.5

1.8

0.2V 

.45 

.70 

1.00 

1.70 

3.2 

6.3 

14.4

2.1 

2.5 

3.0 

3.5 

4.0 

4.5 

5.0 

5.5

102

175

274

400

565

760

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

3.85

2.85

2.4

9.3

9.8

7.5

4.0

3.1

2.3

3.3

2.25 679-

66

16.1

15.0

15.0

8.7

12.2

8.3

7.8

5.1

4.5

5.6

7.0

15.9

12.5

70

48

33

15 TB' 1

501.35

16.2

25.1

1,540

Aug.

12.4

22

32

10.9

9.9

8.1

6.1

10.4

40

52

36.5

14.9

8.0

6.0

7.1

5.8

25.5

9.7

49

21.5

7.2

5.6

11.6

28

9.1

18.6

9.9

6.1

5.1

5.4 

6.0

500.4

16.1

24.9

1,540

Sept.

17.4

147T

9.3

7.4

5.8

*4.9

4.5

4.1

3.6

3.2

2.95

2.55

2.65

3.05

6.2

3.95

2.55

3.4

4.4

3.2

2.65

2.55

2.3

2.2

2.05

2.2

27B- 1.70

11.8

6.0

145.15

4.84

7.49

445

Oct.

4.5

9.5

7.7

29

~Z5.S

17.0

8.8

5.4

4.4

4.1

5.4

3.85

3.2

2.25

1.95

1.80

1.54

1.32

1.19

1.12

1.00

.92

2.0

2.95

1.70

1.32

1.00

.80

.70

. 56 

.52

147.99

4.77

7.38

454

Nov.

0.45

.45

.47

.45

.39

.35

.33

.32

.30

1476-

3.95

2.2

1.54

1.83

2.4

2.55

4.0

4.4

8.5

20.5

20.5

14.7

6.5

6.9

4.9

3.7

3.05

2.85

2.4

1.43

136.91

4.56

7.06

420

Dec.

1.22

1.03

.86

.75

.67

.59

.56

.70

.56

.52

.80

*1.00

.78

.54

.43

.39

.41

.57

91 

.36

259

~T3.5

3.35

2.9

1.90

1.66

1.50

1.66

1.62

2 55

396.13

12.8

19.8

1,220

Jan.

1.90

1.50

1.36

.80

.62

.70

.54

774

14

7.9

5.0

133

T2T

. 15.6

4.6

2.85

2.4

2.3

2.2

2.0

1.95

1.85

1.75

1.66

2.4

19.0

8.8

7.4

15.7

4.5 

10.0

396.02

12.8

19.8

1,220

Feb.

5.1

6.8

39

55

8.2

4.3

6.3

30

10.1

4.5

3.85

3785

4.0

5.7

11.2

9.4

31

372

87

182

23

26

21.5

106

668

720

127

56

22.5

 

2,649 . 30

91.4

141

8,130

Mar.

10.7

7.6

6.0

5.1

5.2

4.7

*4.1

3.7

3.45

2.95

3.3

2.85

2.75

6.0

3.4

2.45

3.05

6.3

5.5

3.2

2.45

9.6

10.6

13.0

16.8

5.2

3.85

3.45

13.7

12.1 

4.9

187.95

6.06

9.38

577

Apr.

23

152

42

15.8

6.7

17.0

16.1

16.3

90

113

39

38.5

55

10.1

15.3

16.0

17.4

7.6

6.3

37.5

32

12.8

10

7.0

5.0

5.4

4.6

4.1

4.0

g A

D .U

825.5

27.5

42.5

2,530

May

9.0

9.0

13

8.0

10

50

-60" 100

35

25

50

48

40

41

13

9.0

7.2

15

19

17

10

7.0

6.2

9.0

12

8.2

6.6

5.2

11

16.0

18.1

687.5

22.2

34.3

2,110

June

18.0

46

74

32

21

23

17.1

10.9

12.8

39.5

20.5

113

93

71

24.5

11.2

8.8

8.1

7.2

6.5

5.4

7.2

13.2

28.5

9.1

6.0

5.1

4.9

4.4

16.9

758.8

25.3

39.1

2,330

Calendar year 1955: Max 288 Min 0.3O Mean(mgd) 15.9 Mean(cfs) 24.6 Ac-ft 17,810 

Fiscal year 1955-56: Max 72O Min 0.30 Mean(mgd) 20.0 Mean(cfs) 30.9 Ac-ft 22,52O

Peak discharge (base, 900 mgd).--Dec. 21 (4 a.m.) 1,330 mgd (2,060 cfs), 6.56 ft; Jan. 12 (8 p.m.) 

1,550 mgd (2,060 ofs), 6.59 ft; Feb. 25 (9 p.m.) 5,330 mgd (5,ISO efs), 9.36 ft._______________

* Discharge measurement made on this day.

Mote. No gage-height record Jan. 9-11, Apr. 23 to May 29} discharge estimated on basis of records 

for Puohokamoa Stream.
ISLAND OF MAUI 119

Alo Stream near Huelo

Location. Lat 20°51'50", long 156°11'45", on right bank just upstream from Spreckels 

ditch inflow, trail crossing, and Wailoa ditch intake, 2.5 miles southeast of Kailua, 

and 3.8 miles southeast of Huelo.

Drainage area. 0.2 sq mi.

Records available. December 1910 to June 1956.

Gage. Water-stage recorder. Datum of gage is 1,248.38 ft above mean sea level, datum of 

1929. Prior to June 18, 1914, staff gage at site 300 ft downstream at different datum.

Average discharge. 45 years (1911-56), 4.80 mgd (7.43 cfs).

Extremes. Maximum discharge during year, 330 mgd (511 cfs) Feb. 25 (gage height, 

3.63 ft), from rating curve extended above 130 mgd; minimum, 0.37 mgd (0.57 cfs) 

Nov. 9.

1910-56: Maximum discharge, 1,600 mgd (2,480 cfs) Nov. 18, 1930 (gage height, 

6.90 ft), from rating curve extended above 130 mgd; minimum, 0.2 mgd (0.3 cfs) Nov. 22, 

23, 1932.

Remarks. Records good. Water used for irrigation in central Maul.

Rating table, fiscal year 1955-56 (gage height, In feet, and discharge, 

In million gallons a day)

0.5 

.6

.9 

1.0

0.41

.73

1.12

1.58

2.15

2.90

1.1 

1.3 

1.6 

2.0 

2.5 

3.0

4.5

9.7

24

55

113

197

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

Cf£

Ac-ft

July

2.05

1.58

2.4

6.1

2.3

1.69

1.49

1.26

T770

3.15

1.53

4.1

11.4

4.0

5.5

4.6

4. 9

7.1

3.75

3.5

1.98

*1.59

1.40

1.58

6.0

3.45

16.7

12.1

4.6 

4.5

"^ *

146.00

4.71

7.29

448

Aug.

2.75

7.5

11.5

5.1

3.2

2.3

1.98

5.0

10.1

10.6

~T7S 13.4

2.7

2.3

4.8

2.4

5.5

4.5

6.4

6.7

2.4

2.05

3.2

6.8

2.9

3.95

2.15

1.92

1.64 

1.98 

2.45

147.77

4.77

7.38

453

Sept.

15.5

3.7

3.35

3.65

1.98

1.81

1.69

1.40

1.26

1.12

1.04

.96

1.12

1.21

4.9

1.44

1.12

2.0

1.04

.92

.89

.85

.81

.77

.73

.92

.81

2.0

2.4 

1.12

60.51

2.02

3.13

186

Oct.

1.18

2.45

3.05

~T75 12.5

6.5

2.15

1.75

1.69

1.44

1.30

1.17

1.04

.96

.92

.85

.85

.77

.77

.73

*.67

.63

1.43

.96

.89

.73

.63

.57

.51 

75T

.51

58.01

1.87

2.89

178

Nov.

0.47

.47

.47

.44

.44

.41

741

.41

.41

2.8

.73

.54

.47

1.20

1.14

1.12

2.75

1.60

3.7

3.7

11.4

6.5

3.4

5.1

2.2

1.53

1.49

1.49

1.30 

1.17

59.26

1.98

3.06

182

Dec.

0.96

.92

.85

.77

.73

.70

.67

.67

.63

.63

.96

.73

.60

.57

.51

.51

.54

.47

751

5.8

13.4

1.44

.96

.96

.85

.73

.70

.63

.60 

1.21

45.01

1.45

2.24

138

Jan.

1.4,0

.85

.73

.67

.63

.60

.60

.82

15.3 -379

1.44

9.0

7.8

1.75

1.30

1.12

1.00

.92

.85

.77

.73

.73

.67

.67

1.74

13.3

2.0

3.1

11.7 

1.86

4.0

91.95

2.97

4.60

282

Feb.

1.69

5.4

.7

.4

.75

.35

.3

.75

.49

.21

.08

!l7

4.6

7.0

6.2

8.8

46

9.0

16.8

5.3

5.0

9.9

50

115

57

29

10.2

9.5

423.98

14.6

22.6

1,300

Mar.

4.0

2.7

2.2

1.86

1.75

1.44

*1.30

1.17

1.12

1.00

1.41

1.00

1.02

3.15

1.04

.89

1.00

5.6

1.68

1.08

.92

5.7

4.2

3.8

9.5

2.3

1.86

1.69

15.0 

4.0

1.92

87.30

2.82

4.36

268

Apr.

9.8

48

14.1

4.7

2.45

10.1

4.2

3.35

4.7

9.8

7.2

14.4

3.4

2.45

3.7

6.3

5.2

2.15

1.98

12.2

19.1

4.3

*3.05

1.98

1.69

1.92

1.49

1.26

37!

209 . 54

6.98

10.8

643

May

2.4

3.15

4.9

2.4

3.6

13.8

37.5

147S

10.5

12.5

6.8

15.2

14.3

13.5

5.1

3.05

2.95

6.8

7.2

8.4

2.7

2. .15

1.98

4.5

4.6

3.2

2.05

573" 1.97

5.1

227.40

7.34

11.4

698

June

4.8

8.6

~573 14.6

6.0

8.5

4.5

4.5

4.9

10.2

6.8

13.6

11.3

8.6

5.2

2.9

3.9

3.9

2.7

2.6

1.92

2.6

5.2

8.7

2.4,

1.98

1.86 274"

1.96 

11.8

177.22

5.91

9.14

544

Calendar year 1955. Max 54 Mln 0.41 Mean(mgd) 4.40 Mean(cfs) 6.81 Ac-ft 4,930

Fiscal year 1955-56: Max 115 Mln 0.41 Mean(mgd) 4.74 Mean(cfs) 7.33 Ac-ft 5,320

Discharge measurement made on this day.
120 ISLAND OP MAUI

Kaaiea Stream near Huelo

Location. Lat 20°52'05", long 156°12'15", on left bank 700 ft upstream from Hamakua 

ditch trail crossing, 2 miles southeast of Kailua, 3.2 miles southeast of Huelo, and 

3.5 miles west of Keanae.

;. 1, 1934, water-stage reDrainage area. 0.5 sq mi.

Records available. December 1921 to June 1956.

Gage. Water-stage recorder and concrete weir. Prior to 

corder at site 40 ft downstream at different datum.

Average discharge. 34 years (1922-56), 4.59 mgd (7.10 cfs).

Extremes. Maximum discharge during year, 460 mgd (712 cfs) Feb. 25 (gage height, 

4.06 ft), from rating curve extended above 130 mgd; minimum, 0.33 mgd (0.51 cfs) 

Nov. 9.

1921-56: Maximum discharge, 2,300 mgd (3,560 cfs) Nov. 18, 1930 (gage height, 

7.93 ft, site and datum then in use), from rating curve extended above 50 mgd; minimum, 0.22 mgd (0.34 cfs) June 1, 1945.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Water used for irrigation in central Maul.

Rating table, fiscal year 1955-56 (gage height, in feet, and discharge, 

in million gallons a day)

0.27

.63

1.34

2.45

4.1

6.3

9.0

12.5

1.0 

1.2 

1.4 

1.7 

2.0 

2.5 

3.0

16.5

26.5

37

56

79

126

187

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

Cf£

Ac-ft

July

2.05

1.63

1.48

6.3

2.35

1.87

1.53

1.25

T734

3.2

1.53

3.95

11.9

4.1

5.7

4.8

4.5

7.8

3.8

3.2

1.95

*1.58

1.43

1.64

6.8

3.75

19.8

13T3

5.2

5.4

18* 3

153.43

4.95

7.66

471

Aug.

3.25

7.2

10.8

4.3

3.85

2.3

1.84

4.6

10.8

11.1

13.9

7.8

3.1

2.2

4.6

2.65

6.5

4.0

6.5

6.5

2.45

1.95

3.2

7.8

3.15

4.9

2.3

1.84

1.63 

T784

2 25

151.10

4.87

7.54

464

Sept.

~478 13.8

3.6

3.55

2.05

1.69

1.43

1.25

1.09

.94

.87

.80

1.06

1.17

4.3

1.53

1.01

1.74

.94

.80

.74

.68

.63

.63

.58

.80

.68

1.83

3.05

1.17

59.21

1.97

3.05

182

Oct.

1.17

2.45

2.95

12.6

8.2

7.2

2.45

1.73

1.63

1.43

1.25

1.01

.94

.87

.74

.74

.63

.63

.58

.58

*.54

.58

1.25

.94

.80

.63

.54

.50

.46

.46

.42

57.10

1.84

2.85

175

Nov.

0.42

.42

.39

.39

.39

.36

736

.36

.36

2.75

.68

.46

.39

1.02

1.09

1.09

2.65

1.78

4.1

4.3

~^G 12.0

3.55

5.5

2.2

1.53

1.25

1.17

1.09

.94

59.59

1.99

3.08

183

Dec.

0.87

.74

.68

.63

.58

.54

.54

.54

.50

.50

.80

.70

.50

.42

.42

.42

.46

^39

.42

6.1

13.4

1.43

.94

.87

.68

.63

.58

.54

.54

1.19

3.45

41.00

1.32

2.04

126

Jan.

1.25

.74

.63

.54

.54

.50

.46

768

15.7

4.4

1.43

8.2

8.3

1.73

1.17

.94

.80

.68

.63

.63

.58

.54

.50

.50

1.01

11.1

1.96

2.15

12.0

1.84

4.2

86.33

2.78

4.30

265

Feb.

1.63

4.8

4.9

4.4

1.53

1.34

5.0

4.0

1.73

1.34

1.01

T7TT

1.09

4.5

7.2

6.3

10.0

47

10.5

18.5

5.3

5.0

9.3

45

150

72

31.5

11.7

8.6

456.34

15.7

24.3

1,400

Mar.

3.75

2.45

.84

.53

.43

.25

.09

1.01

.94

. 87

1.09

*.87

.84

2.75

.94

.74

754

5.2

1.91

.94

.80

4.7

5.0

4.4

12.0

2.45

1.63

1.53

11.8

4.4

82.93

2.68

4.15

255

Apr.

9.7

53

14.6

4.4

2.2

9.9

4.6

3.15

5.7

12.4

7.8

15.1

4.4

2.45

4.4

6.0

5.7

2.2

1.84

10.8

16.2

4.4

3.6

2.05

1.53

2.0

1.63

1.17

1.09

4.7

218.71

7.29

11.3

671

May

3.15

2.95

4.9

2.55

3.7

13.5

35.5

T57B"

11.5

a!3

a7.4

a!5

a 14

a!3

a5.0

a3.2

a3.0

a7.0

7.4

8.5

3.25

2.3

1.95

7^5

5.5

4.4

2.3

2.0

5.6

7.5

235.10

7.58

11.7

721

June

5.1

10.4

15.9

10.5

7.8

11.0

5.8

5.2

6.0

12.7

7.5

15.0

13.6

9.5

5.6

3.55

3.9

4.2

3.1

2.75

2.05

2.8

5.6

10.7

3.1

2.2

1.95

2.4

1.77 

12.7

204.37

6.81

10.5

627

Calendar year 1955. Max 52 Min 0.36 Mean(mgd) 4.34 Mean(cfs) 6.71 Ac-ft 4,870 

Fiscal year 1955-56: Max 130 Min 0.36 Mean(mgd) 4.93 Mean(cfs) 7.63 Ac-ft 5,540

Peak discharge (base, 250 mgd). Feb. 25 (10:50 p.m.) 460 mgd (712 cfs) 4.06 ft.

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Alo Stream.
ISLAND OP MAUI 121

Oopuola Stream near Huelo

Location. Lat 20°52'15", long 156°12'30", on left bank 100 ft upstream from Wailoa ditch 

intake, 300 ft upstream from ditch trail, 1.8 miles southeast of Kailua, 3 miles southeast of Huelo, and 3.8 miles west of Keanae.

Drainage area. 0.2 sq mi.

Records available. August 1930 to June 1956. December 1910 to June 1915, at site half a 

mile downstream; records not equivalent.

Gage. Water-stage recorder and concrete control.

Average discharge. 25 years (1931-56), 1.75 mgd (2.71 cfs) .

Extremes. Maximum discharge during year, 288 mgd (446 cfs) Feb. 25 (gage height, 4.57 ft), 

from rating curve extended above 20 mgd as explained below; minimum, 0.16 mgd 

(0.25 cfs) Nov. 4-9.

1930-56: Maximum discharge, 340 mgd (526 cfs) Jan. 22, 1946 (gage height, 5.54 ft), 

from rating curve extended above 20 mgd by test on model of station site; minimum, 

0.04 mgd (0.06 cfs) Oct. 29, 30, 1943, June 1, 1945.

Remarks. Records good. Water used for irrigation in central Maul.

Rating table, fiscal year 1955-56 (gage height, in feet, and discharge, 

in million gallons a day)

1.6

1.7

1.8

1.9

2.0

2.1

0.05

.23

.65

1.32

2.35

3.75

2.2

2.3 

2.5 

2.8 

3.2

5.7 

8.2 

14.7

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

Cf£

Ac-ft

July

0.75

.60

.68

2.6

.98

.72 

.60

.45

748

1.30

.55

1.40

3.9

1.50

2.55

1.86

1.61

2.7

1.22

1.28

.65

.50

.45

.55

2.1

1.62 

6.2

5.1

1.82

2 05

-'- £-.

55.97

1.81

2.80

172

Aug.

1.10

2.8

3.8

*1.50

1.31

.75 

.65

1.39

3.4

4.2

5.8

2.3

.94

.70

1.87

.94

2.15

1.89

2.7

3.25

.87

.70

.98

2.15

1.21

1.60 

.70

.65

.55

. 81

1.01

54.67

1.76

2.72

168

Sept.

4.3

1.52

1.38

1.61

.75

.65 

.60

.45

.40

.36

.32

.32

.28

.32

2.0

.65

.40

.70

.32

.28

.25

.23

.23

.23

.21

.28 

.25

1.36

1.18

.45

22.28

0.743

1.15

68

Oct.

0.45

1.09

l.lo

5.1

472

2.85 

.87

.60

.65

.55

.50

.40

.32

.28

.28

.25

.23

.23

.23

.23

.21

.21

.55

.40

.36

.25 

.23

.21

 19

!l9

23.40

0.755

1.17

72

Nov.

0.18

.18

.18

Til

.16 

.16

.16

.16

1.20

.28

.21

.18

.70

.65

.65

1.54

.95

.96

1.56

3.95

3.05

1.70

1.93

.87

.55 

.50

.55

.60

.40

24.48

0.816

1.26

75

Dec.

0.32

.28

.25

.25

.23

.23 

.23

.23

.21

.21

.32

.25

.21

.19

.18

.18

.19

.18

.21

3.1

5.1

.66

.36

.40

.28

.25 

.23

.23

.25

1.34

4.0

20.55

0.663

1.03

63

Jan.

O.90

.45

.36

.28

.25

^23 

.23

.62

5.5

1.86

.65

3.1

3.2

.81

.55

.45

.36

.32

.28

.25

.23

.23

.23

.25

.69

fro-4

1.97

5.0

z'.i

39.63

1.28

1.98

122

Feb.

0.94

3.1

1.98

1.88

.75

*.60 

8.1

2.0

.94

.70

.50

765

.55

2.65

3.25

2.55

2.55

16.0

3.85

5.2

1.95

1.69

3.65

21

63

29

10.8

3.5

3.85

197.18

6.80

10.5

605

Mar.

1.41

.94

.70

.55

.50

.40 

.36

.32

.28

728

.45

*.32

.35

1.37

.40

.32

.40

1.16

.80

.36

.32

1.97

1.88

1.23

2.85

.89 

.81

.65

6.2

2705

 87

31.39

1.01

1.56

96

Apr.

4.9

22.5

6.0

2.0

1.10

3.9 

2.3

1.42

1.72

2.7

2.35

4.5

1.10

.87

1.60

2.4

2.5

.87

.87

4.8

10.3

2.15

1.44

.87

.70

.98 

.70

.50

.45

1.43

89.92

3.00

4.64

276

May

1.11

.80

2.1

1.02

1.37

5.5 

17.5

4.2

3.8

4.3

2.55

6.8

5.4

6.0

3.05

1.25

1.10

3.0

2.75

3.3

1.10

.75

.62

2.7

1.90

1.68 

.87

.92

2.35

1. 80

2. 65

94.24

3.04

4.70

289

June

2.15

3.35

6.2

476

2.Z

3.3 

1.82

1.76

2.05

5.1

2.75

6.0

3.85

3.45

2.25

1.25

1.84

1.98

1.25

1.10

.81

1.04

2.3

3.4

.94

ti

1.00

.80

5.4

75.44

2.51

3.88

232

Calendar year 1955: Max 26.5 Min 0.16 Mean(mgd) 1.80 Mean(cfs) 2.79 Ac-ft 2,020

Fiscal year 1955-56: Max 63. Min 0.16 Mean(mgd) 1.99 Mean(cfs) 3.08 Ac-ft 2,240

Peak discharge (base, 130 mgd). --Feb. 7 (9:30 p.m.) 191 mgd (296 cfs), 4.04 ft; Feb. 25 (11 p.m.)

288 mgd (446 ofs), 4.57 ft.

* Discharge measurement made on this day.
122 ISLAND OP MAUI

Nailiilihaele Stream near Huelo

Location. Lat 20°52'30", long 156°13'05", on left bank 200 ft upstream from Wailoa ditch 

intake, 700 ft upstream from New Hamakua ditch trail, 1.5 miles south of Kailua, and 

2.5 miles southeast of Huelo.

Drainage area. 2.8 sq mi.

Records available. December 1910 to December 1911, October 1913 to June 1918, August 1919 

to June 1956. July to December 1912, at site 700 ft downstream; records not equivalent 

due to diversion.

Sage. Water-stage recorder and masonry control. Altitude of gage is 1,205 ft (from topographic map). Dec. 9, 1910, to Dec. 31, 1911, staff gage at site 300 ft downstream at 

different different datum., Oct. 8, 1913, to Mar. 20, 1922, at present site-at datum 0.50 ft

higher.

Average discharge. 35 years (1920-24, 1925-56), 24.7 mgd (38.2 cfs).

Extremes.--Maximum discharge during year, 6,300 mgd (9,750 cfs) Feb. 25 (gage height, 

9.47 ft), from rating curve extended above 120 mgd by logarithmic plotting; minimum, 

2.5 mgd (3.9 cfs) Nov. 7-10, Dec. 18.

1910-18, 1919-56: Maximum discharge, 8,100 mgd (12,500 cfs) Apr. 27, 1950 (gage 

height, 10.36 ft), from rating curve extended above 120 mgd by logarithmic plotting; 

minimum, 0.45 mgd (0.70 cfs) July 14, 1920.

Remarks. Records good except those above 120 mgd, which are fair, 

gation in central Maui.

Revisions (fiscal years). WSP 755: 1932. WSP 795: 1934.

Water used for irriRatlng table, fiscal year 1955-56 (gage height. In feet, and 

discharge, In million gallons a day)

2.4 

2.7

1.50

2.9

5.0

10.8

19.0

39.5

3.0 

3.5 

4.0

4.5 

5.0 

6.0

73

159

290

470

710

1,390

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

CfE

Ac-ft

July

10.8

8.9

8.7

24.5

11.4

11.1

9.2

2/7

8.4

12.7

8.0

19.0

69

20

29

26

20.5

36

19.5

16.5

11.9

10.2

9.6

10.2

31.5

17.6

119

61

30.5 

30

130

838.4

27.0

41.8

2,570

Aug.

19.5

34.5

62

*20.5

18.6

14.6

11.9

24

64

65

75

37.5

17.7

14.2

22.5

15.0

42

20

34.5

31

14.6

12.7

20.5

48

19.8

29.5

15.9

12.3

10.8

11.6

13.1

852.8

27.5

42.5

2,620

Sept.

65

25

17.7

16.8

11.9

10.5

9.9

8.9

8.0

7.4

6.9

6.4

8.0

8.3

20

9.5

7.2

8.9

6.9

5.1

5.5

5.0

4.8

4.6

4,4

5.0

5.5

10.9

15.9 

8.3

338.2

11.3

17.5

1,040

Oct.

8.0

13.1

14.2

67

41

35.5

15.0

11.2

10.5

9.6

8.3

7.7

6.9

6.4

5.8

5.5

5.3

4.8

4.6

4.4

4.2

4.2

7.2

6.1

5.0

4.4

*3.75

3.55

3.3 

3.3

3*1.

332.90

10.7

16.6

1,020

Nov.

2.9

2.9

2.9

2.75

2.6

2.6

2.5

275

2.5

13.7

5.3

3.55

2.9

5.0

5.8

5.5

10.6

9.1

15.2

24

51

29

14.2

19.3

10.8

8.3

7.4

6.6

6.4 

5.5

283.30

9.44

14.6

869

Dec.

5.0

4.6

4.4

3.95

3.95

3.75

3.75

3.75

3.3

3.3

4.4

4.4

3.3

2.9

2.75

2.6

2.75

2.5

2.6

35.5

117

10.4

6.4

5.5

4.8

4.4

4.2

3.75

3.75 

5.7

12.0

281.35

9.08

14.0

863

Jan.

5.5

3.75

3.3

3.1

3.1

2.9

2.75

4.4

81

25

8.3

62

47

11.3

8.0

6.9

5.8

5.3

4.8

4.6

4.2

4.2

3.95

3.75

5.3

148

~13.4

13.3

54

10.2

21.5

580.60

18.7

28.9

1,780

Feb.

10.2

22.5

37

30.5

11.2

9.2

31.5

52

11.8

8.6

7.7

11.2

8.3

22.5

31

28.5

69

397

71

149

31

33

52

288

1.260

899

268

91

49

--" "

3,990.7

138

214

12,250

Mar.

23

17.7

13.8

11.9

10.8

9.9

8.9

8.0

7.7

6.9

7.4

*6.6

6.7

13.9

7.2

6.1

7.4

19.6

11.2

6.9

5.8

23.5

22.5

28.5

51

13.5

10.2

9.6

44

19.2 10.' 2

455.6

14.7

22.7

1,400

Apr.

48

""76 459

25.5

15.0

46

28.5

20

49

92

54

94

37.5

18.1

35.5

34.5

3C

15.0

13.1

59

69

23.5

19.3

13.5

11.6

18.9

13.1

9.9

9.2

21.5

1,459.2

48.6

75.2

4,480

May

17.8

15.5

24

14.6

18.2

54

1S9

73

58

64

63

112

98

85

29

20

17.7

34

43

42

18.1

14.2

13.1

21.5

28

19.1

13.1

12.5 27 

36.5

32 5

1,307.4

42.2

65.3

4,010

June

28.5

59

92

66

52

67

36

29

36

67

46

91

91

64

37

22.5

23

22.5

18.1

16.8

13.5

17.0

32.5

59

17.7

13.8

13.1

13.5

11.2 '5T~

1,211.7

40.4

62.5

3,720

Calendar year 1955: Max 342 Mln 2.5 Mean(mgd) 27.7 Mean(cfs) 42.9 Ac-ft 31,000

Fiscal year 1955-56: Max 1,260 Mln 2.5 Mean(mgd) 32.6 Mean(cfs) 50.4 Ac-ft 36,620

Peak discharge (base, 1,250 mgd).--Jan. 26 (6 p.m.) 1,840 mgd (2,850 cfs), 6.50 ft; Feb. 18

(12:50 p.m.) 1,510 mgd (2,050 efs), 5.87 ft; Feb. 25 (9:50 p.m.) 6,500 mgd (9,750 cfs), 9.47 ft.

* Discharge measurement made on this day.
ISLAND OF MAUI 123

Kailua Stream near Huelo

Location. Lat 20°52'35", long 156°13'25", on left bank just upstream from Wailoa ditch 

intake, 1.2 miles southwest of Kailua, and 2.5 miles south of Huelo.

Drainage area. 3.0 sq mi.

Records available. December 1910 to December 1911, June 1913 to June 1918, July 1919 to 

June 1956. July 1912 to May 1913 at site 1 mile downstream, records not equivalent.

Sage. Water-stage recorder and masonry control. Datum of gage is 1,252.99 ft above mean 

sea level, datum of 1929. Prior to Dec. 31, 1911, staff gage 400 ft downstream at 

different datum. June 17 to Sept. 30, 1913, staff gage at present site and datum.

Average discharge. --3 7 years (1919-56), 19.1 mgd (29.6 cfs).

tremes . --Maximum discharge during year, 5,470 mgd (8,460 cfs) Feb. 25 (gage height,

(1. 

Nov. 7-9, Dec. 16-19.

. - , , , . 

ft) , from rating curve extended above 650 mgd; minimum, 1.00 mgd (1.55 cfs)

,

1910-11, 1913-18, 1919-56: Maximum discharge, that of Feb. 25, 1956; minimum, 

0.07 mgd (0.11 cfs) June 27, 1921.

Remarks . Records good. Water used for irrigation in central Maul.

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

2.4 

2.7 

3.0

1.00

2.05

3.4

7.4

16.4

29

48

4.0 

4.5 

5.0 

5.5 

6.0 

6.5

97

163

253

370

525

750

1,120

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

4.5

3.75

3.75

9.2

4.5

5.7

3.95

3.25

3.1

47T

3.1

6.8

63

18.7

18.1

17.4

10.9

16.5

9.0

8.2

5.9

4.8

4.3

5.4

15.1

9.7 

84

54

32.5 

20.5

103

556.70

18.0

27.9

1,710

Aug.

17.0

22.1

38.5

12.6

10.0

8.4

6.7

12.2

48

47

48

19.2

10.6

8.4

9.7

8.2

31.5

11.5

46

25.5

10.0

8.2

13.7

38

13.6

24 

12.1

8.7

7.2 

6.5

6.7

589.8

19.0

29.4

1,810

Sept.

27

15.0

9.7

8.4

6.7

5.6

5.2

4.7

4.3

3.95

3.6

3.4

3.95

3.95

7.2

*4.5

3.4

3.75

3.25

2.85

2.7

2.55

2.3

2.2

2.05

2.2 

2.3

3.25

8.3 

5.0

163.25

5.44

8.42

501

Oct.

4.1

7.3

7.7

39

25.5

20

10.0

6.3

5.0

4.3

4.3

3.6

3.25

3.0

2.7

2.55

2.45

2.3

2.2

2.05

1.94

1.83

2.55

3.0

2.2

1.94 

1.72

1.61

1.50 

1.50

1.40

178.79

5.77

8.93

549

Nov.

1.40

1.30

1.30

1.20

1.20

1.10

1.00

TToo

1.00

7.7

3.45

1.94

1.50

1.72

1.94

2.05

2.95

3.75

5.0

17.0

24.5

16.0

6.5

6.3

4.1

3.1 

2.7

2.45

2.2 

2.05

129.40

4.31

6.67

397

Dec.

1.94

1.72

1.61

1.50

1.50

1.40

1.40

1.40

1.30

1.20

1.61

1.72

1.30

1.20

1.10

1.00

1.00

1.00

1.10

46

206

14.8

5.0

3.6

2.85

2.45 

2.2

1.94

1.83 

2.45

3.3

318.42

10.3

15.9

977

Jan.

1.94

1.61

1.50

1.40

1.30

1.30

1.20

T740

42

16.5

5.2

92

82

15.9

6.1

4.1

3.25

3.0

2.55

2.3

2.2

2.05

1.94

1.83

2.2

"18.3

6.3

25.5 

7.0

15.3

473.17

15.3

23.7

1,450

Feb.

7.4

12.6

50

52

11.1

6.5

8.8

39

11.6

5.6

4.7

879

6.5

8.2

17.6

13.0

37

435

106

208

31

28

32.5

141

1,090

1,120 

190

73

30.5

 

3,785.5

131

203

11,620

Mar.

16.8

12.1

9.5

8.2

7.2

6.3

5.6

*5.0

4.7

4.3

4.1

3.75

3.6

5.9

3.75

3.25

3.6

5.8

6.3

3.4

3.0

675

12.1

15.4

29.5

7.0 

4.7

4.1

11.4 9 9

231.75

7.48

11.6

711

Apr.

28

219

57

21

9.7

22.5

21

14.6

84

131

56

57

55

15.0

24.5

17.4

19.2

9.7

8.4

28.5

37

16.8

14.4

9.2

7.4

14.0 

8.8

6.3

FTO. O

1,026.5

34.2

52.9

3,150

May

12.2

9.2

13.3

9.5

9.7

23

59

37

33

28.5

57

66

47

52

17.3

11.8

9.7

13.4

22

19.4

10.6,

8.2

7.4

8.7

12.4

10.0 

7.9

1T7§

isis

670.8

21.6

33.4

2,060

June

16.9

42

75

47

31.5

36.5

22

15.4

18.3

48

28

109

131

73

32.5

17.1

13.3

12.1

10.6

9.5

8.2

9.7

17.0

36

11.2

8.4 

7.4

6.7

6.3

23. 5

893.1

29.8

46.1

2,740

Calendar year 1955: Max 330 Mln 1.00 Mean(mgd) 19.0 Mean(cfs) 29.4 Ac-ft 21,250

Fiscal year 1955-56; Max 1,120 Mln 1.00 Mean(mgd) 24.6 Mean(cfs) 38.1 Ac-ft 27,680

Peak discharge (base, 1,300 mgd). Jan. 26 (4:30 p.m.) 1,460 mgd (2,260 cfs), 6.86 ft; Feb. 25

(8:30 p.m.) 5,470 mgd (8,460 cfs), 10.22 ft.

Discharge measurement made on this day. 

527571 O -59 -9
124 ISLAND OF MAUI

Hoolawanui Stream near Huelo

Location. Lat 20°53'15", long 156°14'55", on right bank 250 ft upstream from intake of 

Wailoa ditch, 2 miles west of Kailua, and 2 miles southwest of Huelo.

Records available. December 1910 to June 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 1,219.42 ft above 

mean sea level (East Maul Irrigation Co. bench mark). Prior to June 20, 1914, staff 

gage at site 180 ft downstream at different datum. June 20, 1914, to Oct. 24, 1933, 

water-stage recorder at site 80 ft downstream at datum 4.43 ft lower.

Average discharge . 44 years (1911-15, 1916-56), 7.84 mgd (12.1 cfs).

Extremes. Maximum discharge during year, 3,080 mgd (4,770 cfs) Feb. 25 (gage height, 

5.77 ft), from rating curve extended above 100 mgd by logarithmic plotting; minimum, 

0.72 mgd (1.11 cfs) Dec. 19.

1910-56: Maximum discharge, 3,240 mgd (5,010 cfs) Apr. 27, 1950 (gage height, 

5.94 ft), from rating curve extended above 100 mgd by logarithmic plotting; minimum, 

0.15 mgd (0.23 cfs) Oct. 25, 1917.

Remarks. Records good. Water used for irrigation in central Maul.

Rating table, fiscal year 1955-56 (gage height, in feet, and 

discharge, in million gallons a day)

0.3 

.4 

.5 

.6 

.8

1.0

0.59

1.39

2.7

4.5

10.7

19.0

1.2 

1.6 

2.0 

2.5 

3.0 

3.5

31

67

131

260

440

710

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

2.55

2.25

2.4

4.8

2.55

2.4

2.4

1.97

272~5

3.2

2.1

3.4

10.7

4.5

6.2

5.7

5.0

7.2

4.5

3.7

3.2

2.85

2.7

3.0

5.7

3.7

20.5

11.7

7.5

28 '

176.42

5.69

8.80

541

Aug.

7.5

8.8

11.5

6.1

5.5

4.8

4.3

5.8

12.6

11.4

~978 15.4

6.1

5.2

6.4

5.0

9.3

6.9

9.0

7.6

5.2

4.8

6.1

11.4

6.1

8.2

5.5

4.5

*4.3

4.1 

475

223.7

7.22

11.2

687

Sept.

~6T4 13.5

5.2

5.2

3.9

3.5

3.5

3.2

3.0

2.7

2.7

2.55

2.85

2.7

4.6

2.7

2.25

2.55

2.1

1.97

1.84

1.72

1.60

1.60

1.49

1.72

1.60

2.45

2.55

 -l!t

95.48

3.18

4.92

293

Oct.

1.72

2.55

2.85

11.6 TTff

7.5

3.9

3.0

3.0

2.7

2.25

2.1

1.97

1.97

1.84

1.84

1.72

1.60

1.72

1.60

1.49

1.39

1.97

1.72

1.49

1.39

1.29

1.19

1.10 

17I6'

1.10

81.56

2.63

4.07

250

Nov.

1.10

1.02

1.02

1.02

.94

.94

.94

.94

.94

2.95

1.19

.94

.86

1719"

1.19

1.10

1.49

1.49

1.29

3.0

6.5

477

2.55

2.55

1.84

1.49

1.39

1.29

1.19

1.10

50.15

1.67

2.58

154

Dec.

1.10

1.02

1.02

.94

.94

.94

.94

.94

.94

.86

1.19

1.02

.86

.79

77?

.79

.79

.79

.86

7.9

24~2".85

1.72

1.49

1.29

.19

.10

.10

.10

25 2)5

65.01

2.10

3.25

200

Jan.

1.29

1.10

1.02

.94

75?

.94

.94

1.16

8.2

3.7

*1.73

16.2

13.4

3.7

2.7

2.25

2.1

.97

.84

.72

.60

.60

.60

.49

.72

~5.5 38

2.8

10.4

3.5 

6.2

142.25

4.59

7.10

437

Feb.

4.4

7.5

7.8

9.4

5.2

4.3

6.6

10.8

4.8

3.7

3.5

677

4.1

6.0

9.5

6.7

10.2

102

30.5

52

*16.-8

12.1

15.5

72

605

418

106

43

21.5

 

1,605.6

55.4

85.7

4,930

Mar.

13.5

ToT4

8.5

7.2

6.1

5.2

4.8

4.3

4.1

3.7

3.7

3.2

3.2

4.2

2.85

2.55

3.0

4.3

3.3

2.4

2.1

475

4.7

4.6

12.2

3.9

3.0

2.85

5.6

4.1 

2.85

150.40

4.85

7.50

462

Apr.

11.9

*103 "20". 5

11.1

8.1

14.2

10.0

7.9

13.9

27.5

20.5

25

15.0

9.7

12.2

11.2

9.4

6.8

5.8

11.1

17.2

8.8

7.8

6.1

5.5

14.6

5.8

5.0

4.5 "E T"

6.7

436.8

14.6

22.6

1,340

May

5.5

5.2

6.4

5.0

5.4

10.4

17.8

12.3

11.8

14.0

14.3

23.5

2175

21

11.8

9.3

8.1

9.3

10.7

10.8

6.8

5.8

5.2

6.7

6.8

5.5

4.8

4.9

7.2

7.8 

8.2

303.8

9.80

15.2

932

June

6.7

11.2

22

16.4

14.2

18.3

11.8

10.1

11.3

19.8

13.7

27.5

23~ 31.5

15.4

11.4

10.1

9.3

7.8

6.8

5.5

6.2

8.6

14.7

6.4

5.5

5.0

5.0 i*a

13.5

373.5

12.4

19.2

1,150

Calendar year 1955. Max 104 Min O.79 Mean(mgd) 7.77 Mean(cfs) 12.0 Ac-ft 8,710

Fiscal year 1955-56: Max 6O5 Min 0.79 Mean(mgd) 10.1 Mean(efs) 15.6 Ac-ft 11,380

Peak discharge (base, 3OO mgd). Jan. 26 (6:30 p.m.) 875 mgd (1,350 cfs), 3.77 ft; Feb. 18 (2 p.m.) 

420 mgd (650 cfs), 2.97 ft; Feb. 25 (9 p.m.) 5,080 mgd (4,770 efs), 5.77 ft._________________

* Discharge measurement made on this day.
ISLAND OF MAUI 125

Hoolawallilli Stream near Huelo

Location. Lat 20°53'15", long 156°14'35", on right bank just upstream from Walloa ditch 

Intake, 1.8 miles (corrected) west of Kallua and 1.6 miles (corrected) southwest of 

Huelo.

Drainage area. 0.61 sq ml.

Records available. April 1911 to June 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage Is 1,245 ft (from 

Topographic map). Prior to June 19, 1914, staff gage at same site and datum.

Average discharge. 44 years (1911-15, 1916-56), 4.71 mgd (7.29 cfs) .

Extremes. Maximum discharge during year, 465 mgd (719 cfs) Feb. 25 (gage height,

5.08 ft), from rating curve extended above 90 mgd by broad-crested weir formula; minimum, 0.98 mgd (1.52 cfs) Dec. 19.

1911-56: Maximum discharge, 657 mgd (1,020 cfs) Nov. 18, 1930 (gage height, 

6.74 ft, control then In use), from rating curve extended above 22 mgd; minimum, 

0.2 mgd (0.3 cfs) June 8, 1926.

Revisions. The figures of maximum discharge for some fiscal years have been revis ea7~as~~sTiown in the following table. They supersede figures published In the watersupply papers Indicated.

WSP

770 

795 

815 

835 

865 

885 

935

Fiscal 

year

1934 

1935 

1936 

1937 

1938 

1939 

1941

Date

Apr. 25, 1934 

Feb. 25, 1935 

Jan. 17, 1936 

Dec. 29, 1936 

Apr. 7, 1938 

Feb. 7, 1939 

Aug. 25, 1941

Discharge

(mgd)

202 

187 

266 

375 

325 

570 

288

(Cfs)

313 

289 

412 

580 

503 

882 

446

Gage height 

(feet)

3.98 

3.89 

4.36 

4.85 

4.59 

5.42 

4.47

Remarks. Records good. Water used for irrigation In central Maul. 

Revisions (fiscal years). WSP 755: 1931-32.

Rating table, fiscal year 1955-56 (gage height, in feet, and 

discharge, in million gallons a day)

1.3

1.4

1.5

1.6 

1.8

0.80

1.50

2.7

4.2

8.7

2.1 

2.4 

2.7 

3.0 

3.5

19.4

34.5

54

79

133

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

eft

Ac-ft

July

2.3 

2.15

2.15

3.2

2.3

2.15 

2.15

2705

2.55

2.05

2.5

5.5

3.4

4.0

3.8

3.55

*4.9

3.4

3.1

2.55

2.3

2.15

2.35

3.65

2.85

9.8

8.2

4.6

4.8

-tO Q

-L£ - a

115.28

3.72

5.76

354

Aug.

4.6 

5.1

6.2

4.0

3.7

3.25 

3.0

3.45

5.5

5.7

'674 9.6

4.2

3.7

4.1

3.4

4.5

4.5

5.5

4.8

3.55

3.25

3.5

4.7

3.4

3.7

3.25

2.85

2.55

2 * 55

3.0

131.50

4.24

6.56

404

Sept.

6^ 

3.75

3.25

3.85

2.85

2.55 

2.4

2.3 

2.15

2.05

1.93

1.82

1.93

1.93

2.8

2.05

1.82

1.93

1.71

1.60

1.60

1.50

1.50

1.50

1.42

1.50

1.50

2.0

1.82

1.60

66.91

2.23

3.45

205

Oct.

1.60 

1.93

2.05

6^2.

5.6

4.5 

2.85

2.4 

2.3

2.15

*2.05

1.93

1.82

1.71

1.71

1.60

1.60

1.50

1.50

1.50

1.42

1.42

1.71

1.50

1.42

1.34

1.34

1.26

1.26

1 .26

1.19

63.62

2.05

3.17

195

Nov.

1.19 

1.19

1.19

1.19

1.12

1.12 

1.12

1.12 

1.05

2.1

1.19

1.12

1.12

1.26

1.19

1.26

1.42

1.42

1.42

2.05

3,15

3.5

2.3

2.3

1.93

1.71

1.60

1.60

1.60

1 50

47.43

1.58

2.44

146

Dec.

1.50 

1.50

1.42

1.42

1.34

1.34 

1.26

1.26 

1.26

1.19

1.34

1.19

1.19

1.12

1.12

1.12

1.12

1.05

T712"

3.7

i^i

2.15

1.71

1.60

1.50

1.50

1.50

1.42

1.42

1 . 63

3.6

53.69

1.73

2.68

165

Jan.

1.71 

1.50

1.42

1.34

1.34

HI

1.34 

4.1

2.7

1.82

7.4

6.0

2.85

2.4

2.3

2.15

2.05

1.93

1.93

1.82

1.71

1.71

1.60

1.82

7.7

2^9

2.6

6.5

2 .85

3 .8

83.81

2.70

4.18

257

Feb.

3.25 

5.7

4.8

4.2

3.25

2.85 573"

4.8 

3.4

3.0

2.85

4.0

3.0

4.1

7.2

4.7

5.2

27

10.1

12.0

6.6

5.4

8.5

37.5

128

76

29

15.1

11.6

438.40

15.1

23.4

1,350

Mar.

r.o

5.4

4.6

3.9

3.7

3.25 

3.0

2.7 

2.55

2.4

2.55

2.3

2.3

2.7

2.15

2.05

2.05

2.55

2.3

1.93

1.82

2.65

3.0

2.85

5.5

2.85

2.4

2.3

4.4

3.5

95.20

3.07

4.75

292

Apr.

7.5 

*34

11.8

6.7

5.0

8.1 

5.8

4.6 

5.3

7.0

6.6

10.1

5.2

4.4

5.4

6.0

5.6

3.9

3.55

6.5

14.8

6.2

5.0

4.0

3.7

7.1

3.9

3.4

3.1 

3.75

208.00

6.93

10.7

638

May

3.25

3795

3.1

3.55

6.9 

14.4

7^4

9.0

6.4

13.2

11.7

13.2

7.9

5.7

5.0

6.0

6.3

7.0

4.4

3.9

3.7

5.3

4.4

3.9 

3.4

3.9

4.7 

4.8

191.85

6.19

9.58

589

June

4.5 

6.0

12.1

9.2

6.4

8.9 

6.3

5.2 

6.4

10.5

7.3

14.8

12.4

10.8

7.8

5.6

5.6

5.6

4.6

4.0

3.55

3.7

4.9

7.8

4.0

3.55

3.4

3.4

5.0 

8.7

200.00

6.67

10.3

614

Calendar year 1955: Max 41 Min 1.05 Mean(mgd) 4.19 Mean(cfs) 6.48 Ac-ft 4 700

Fiscal year 1955-56: Max 128 Min 1.05 Mean(mgd) 4.63 Mean(cfs) 7.16 Ac-ft 5,210

Peak discharge (base, 150 mgd). Feb. 25 (10:30 p.m.) 465 mgd (719 efs), 5.08 ft. 

* Discharge measurement made on this day.
126 ISLAND OF MAUI

Honopou Stream near Huelo

Location. Lat 20°53'20", long 156°15 I 05", on left bank just upstream from Walloa ditch 

Intake, 2.2 miles southwest of Huelo, and 2.2 miles west of Kallua.

Drainage area. 1.0 sq ml.

Records available. December 1910 to June 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage Is 1,208 ft, corrected {from topographic map). Prior to June 19, 1914, staff gage at same site and 

datum.

Average discharge.--43 years (1911-14, 1916-56), 3.07 mgd (4.75 cfs).

Extremes.--Maximum discharge during year, 1,090 mgd (1,690 cfs) Feb. 25 (gage height, 

4.74 ft), from rating curve extended above 70 mgd as explained below; minimum, 

0.20 mgd (0.31 cfs) Dec. 15, 16.

1910-56: Maximum discharge, 3,690 mgd (5,710 cfs) Nov. 18, 1930 (gage height, 

7.28 ft), from rating curve extended above 70 mgd by model studies of station site; 

minimum, 0.01 mgd (0.02 cfs) for several days In 1933, 1934.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Water used for Irrigation In Central Maul.

Revisions (fiscal years). WSP 1219: 1913-50(M). WSP 1249: 1948-50(P).

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

0.4 

.5 

.6 

.7 

.9

l.-l

0.03

.48

1.26

2.3

5.0

8.6

1.4 

1.7 

2.0 

2.5 

3.0

15.7

25

37

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

Of£

Ao-ft

July

1.00

.84

.92

1.67

.92

.84

.92

.76

754

1.28

.84 

1.08

3.4

1.56

2.15

1.92

1.86

2.85

1.66

1.56

1.36

1.26

1.26

1.46

2.5

1.66

7.8

4.6

2.8

3.2 io!o

66.77

2.15

3.33

205

Aug.

3.2

3.75

4.4

2.8

*2.6

2.3

2.2

2.7

3.95

3.9

frf

3.05

2.7

3.05

2.55

3.55

3.4

3.65

2.9

2.3

2.2

2.55

3.8

2.3

2.7

2.2

1.96

1.76

1 ,c

1. /u

1.96

93.44

3.01

4.66

287

Sept.

5.0

?755

2.05

2.55

1.76

1.66

1.66

1.56

1.46

1.36

1.26 

1.26

1.26

1.16

1.86

1.26

1.08

1.16

1.00

*.84

.76

.68

.60

7675

.60

.68

.60

1.00

1.00

. 60

40.87

1.36

2.10

125

Oct.

0.60

.92

1.00

4.0

374

2.65

1.26

1.08

1.08

1.00

.84 

.84

.76

.76

.68

.68

.60

.60

.60

.60

.54

.54

.68

.60

.54

.48

.42

.42

.42

.36

736

29.31

0.945

1.46

90

Nov.

0.36

.36

.30

.30

.30

.30

.30

.25

725

1.32

.42

.30

.25

.36

.42

.36

.60

.60

.42

.92

2.05

TTso

.92

.84

.60

.48

.42

.42

.42

 36

17.00

0.567

0.877

52

Dec.

0.36

.30

.30

.30

.30

730- .25

.30

.25

.25

.36 

.30

.25

.25

.25

.25

.25

.25

.30

3.35

6.5

T70~8

.68

.60

.54

.48

.48

.42

.42

.54 

1.25

21.71

0.700

1.08

67

Jan.

0.54

.42

.36

.36

.30

.36

.30

.42

2.8

1.16

.68 

5.4

3.4

1.26

1.00

1.00

.92

.84

.76

.76

.68

.68

.68

.60

.68

9.0

TTffl

1.40

4.2

1.66 

2,55

46.98

1.52

2.35

144

Feb.

2.35

4.9

2.85

2.55

1.96

1.76

3.8

2.75

1.86

1.66

1.56 

J7T

1.66

2.45

4.3

2.55

2.85

21

7.5

10.1

6.2

4.9

6.7

25.5

147

82

38

20.5

13.6

 

427.51

14.7

22.7

1,310

Mar.

9.0

679

5.5

4.6

4.0

3.3

2.9

2.55

2.3

1.96

2.05 

1.76

1.8

2.6

1.5

1.3

1.6

2.4

1.8

1.2

1.0

?7S

2.9

2.8

5.0

2.5

1.8

1.7

3.6

2.7 

1.7

89.22

2.88

4.46

274

Apr.

5.0

28

15

7.3

4.5

*6.4

5.0

4.3

5.0

6.2

5.9 

9.8

5.3

4.6

5.4

5.4

4.4

3.4

3.2

5.4

7.0

5.0

4.5

3.3

3.0

5.8

3.1

2.9

2.5

3.3

179.9

6.00

9.28

552

May

3.0

3.0

3.2

2.9

3.0

7.0

~8.0 30

5.4

5.6

6.4 

10

8.4

8.8

5.4

4.9

4.6

5.0

5.2

5.5

3.4

3.05

2.9

3.4

3.3

3.0

£4

27?

3.7

4.0

4.0

171.75

5.54

8.57

527

June

3.5

5.6

9.0

7.0

6.4

7.8

5.6

5.0

5.4

8.6

6.2 

11

15

9.2

7.4

5.4

4.6

3.9

3.4

3.1

2.9

3.2

4.4

6.4

3.5

3.0

2.7

2.5

2.2 T"?

r O

166.5

5.55

8.59

511

Calendar year 1955. Max 31.5 Mln 0.25 Mean(mgd) 3.01 Mean(ofs) 4.66 Ao-ft 3,370 

Fiscal year 1955-56: Max 147 Mln 0.25 Mean(mgd) 3.69 Mean(cfs) 5.71 Ao-ft 4,140

Peak discharge (base, 100 mgd). Jan. 26 (5 p.m.) 110 mgd (170 cfs), 2.81 ft; Feb. 25 (5:30 a.m.) 

1,090 mgd (1,690 cfs)^4;74 ft; May 7 (time unknown) 155 mgd (240 cfs), 2.98 ft._____________

* Discharge measurement made on this day.

Note. Ho gage-height record Mar. 13 to Apr. 6, Apr. 20 to May 18, May 23 to June 30; discharge 

estimated on basis of records for nearby streams.
ISLAND OF MAUI 127

Walloa ditch at Honopou, near Huelo

Location. Lat 20°53'20", long 156°15'05", on right bank 100 ft downstream from intake at 

Honopou Stream, 0.5 mile west of Lupi, 2.2 miles southwest of Huelo, and 2.2 miles 

west of Kailua.

Records available. November 1922 to June 1956.

Gage . Water-stage recorder. Datum of gage is 1,208 ft above mean sea level (by vertical 

angles).

Average discharge. 33 years (1923-56), 113 (175 cfs!

Extremes. 1922-56: Maximum daily discharge, 195 mgd (302 cfs) for several days in 1954- 

 55; no flow Jan. 24-27, 1923.

Remarks . Records excellent. Wailoa ditch receives water from Koolau ditch at Alo Stream 

and from all streams from Alo Stream west to Halehaku Stream at altitude of about 1,200 

ft. Water used for irrigation in central Maul.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

Day

1

2

3

4

5

6

7

8

9

10

11

IS

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean:

mgc

Cf£

Ac-ft

July

104

86

77

153

110

108

82

72

72

107

76

131

194

190

187

192

176

192

176

170

124

104

97

107

184

176

190

195

1ST

195

195

4,413

142

220

13,540

Aug.

195

195

195

192

*183

160

136

159

195

195

195

195

192

168

180

172

194

192

180

194

156

138

176

195

182

194

180

148

124 

T36

153

5,449

176

272

16,720

Sept.

195

194

185

173

136

124

116

101

93

86

79

76

98

96

169

112

86

137

93

*76

69

66

63

59

56

63

66

96

166

117

3,246

108

167

9,960

Oct.

94

155

148

194

194

194

164

124

108

97

101

90

82

72

66

63

59

56

56

53

50

50

66

63

56

53

47

44

41 

4T

41

2,722

87.8

136

8,350

Nov.

38

38

36.5

35

36.5

36.5

36

32

l55~ 30.5

73

47

38

64

63

59

113

100

89

185

194

192

164

177

120

90

82

82

72

73

2,546.0

84.9

. 131

7,810

Dec.

63

56

53

50

47

44

44

44

41

41

50

47

41

36.5

35

36.5

39

41

34

175

124

108

76

66

56

47

47

44

41

55

122

1,802.0

58.1

89.9

5,530

Jan.

123

69

56

50

47

44

41

43

144

T55

95

110

112

101

101

79

72

63

59

53

50

50

47

44

81

121

112

95

108

108

92

2,510

81.0

125

7,700

Feb.

69

69

66

66

63

63

66

69

66

63

63

66

90

90

90

93

*92

78

69

69

69

65

66

58

68

72

76

76

83

2,093

72.2

112

6,420

Mar.

176

163

140

120

128

120

116

112

112

97

110

93

87

157

97

82

102

101

118

86

76

116

161

172

176

148

126

114

173

179

Ito

3,886

125

193

11,930

Apr.

144

195

195

195

164

173

194

180

195

195

195

195

195

185

195

185

190

144

124

146

195

194

192

156

128

148

108

93

86 

121

5,008

167

258

15,370

May

160

148

180

148

164

195

195

195

195

195

195

195

195

195

195

192

168

176

195

195

185

156

144

171

195

190

140

126

195

194 

195

5,567

180

279

17,080

June

194

195

19F

195

195

195

195

195

195

195

195

195

195

195

195

195

195

195

194

185

152

169

176

195

190

160

144

140

121 

194

5,529

184

285

16,970

Calendar year 1955. Max 195 Min 30.5 Mean(mgd) 120 Mean(cfs) 186 Ac-ft 134,800

Fiscal year 1955-56: Max 195 Min 30.5 Mean(mgd) 122 Mean(cfs) 189 Ac-ft 137,400

* Discharge measurement made on this day.
128 ISLAND OF MAUI

New Hamakua ditch at Honopou, near Huelo

Location. Lat 20°53'30", long 156°15'10", on right bank 15 ft upstream from tunnel

portal, 600 ft downstream from Honopou Stream crossing, 2.1 miles southwest of Huelo, 

and 2.3 miles west of Kailua.

Records available. January 1918 to June 1956.

Gage. Water-stage recorder. Datum of gage is 1,170 ft above mean sea level (by vertical' 

angles). Prior to May 15, 1921, at site 300 ft upstream at different datum.

Average discharge. 38 years, 26.2 mgd (40.5 cfs).

Extremes. 1918-56: Maximum daily discharge, 116 mgd (179 cfs) Feb. 13, 14, 27, 1932; no 

flow at times.

Remarks. Records good. Ditch diverts water from streams between Waiakamoi and Halehaku 

Streams above Center and Lowrie ditches. Flow regulated by gates and spillways. 

Water used for irrigation in central Maul.

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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 

3O

31

Total

Mean:

mgd

CfE

Ac-ft

July

0.34

.28

732

3.35

.43

.43

.43

.32

.32

.43

.32

.92

20

3.2

5.9

4.1

.96

9.0

.82

.87

.51

.43

.39

.39

4.8

.98

46

33

8.8

11 . 6 

41

200 . 64

6.47

10.0

616

Aug.

8.3

14.4

24

3.9

3.4

1.04

.93

3.35

27

25

4°

23

4.7

1.27

5.7

1.72

16.3

5.7

13.5

14.1

1.20

1.09

2.75

*19.8

1.32

10.2

1.21

.82

.66

1.03 

1.09

278.48

8.98

13.9

855

Sept.

27

10.8

2.55

4.3

1.09

.98

1.53

1.27

1.20

1.15

1.09

.98

.88

.93

36.

1.62

1.04

4.8

.98

.77

.71

.66

.66

.62

.62

.62

.58

1742

26

3.05

135.90

4.53

7.01

417

Oct.

0.71

13.3

14.0

82

94

80

23.5

1.34

1.15

1.15

1.09

.98

.82

.71

.71

.66

.66

.62

.58

.58

.55

.51

.62

.66

.66

.62

.47

.36

.32

28 

728

323.89

10.4

16.1

994

Nov.

0.26

.26

.24

.24

.21

.19

.17

.15

.13

32.5

1.29

.43

.32

.50

.72

.62

3.9

8.8

11.0

50

70

79

19.9

30.5

2.3

.93

.77

.71

.82

 62

317.48

10.6

16.4

974

Dec.

0.55

.51

.47

.43

.43

.39

.36

.36

.36

.32

.39

.39

.36

.32

.28

.28

.28

.28

.28

23

.06

.05

.04

.03

.03

.02

.02

.02

.03

.03

.01

30.38

0.980

1.52

93

Jan.

~T6T O.Ol

.02

.03

.02

.02

.02

.02

.06

.06

.05

.06

.06

.06

.08

.06

.06

.05

.04

.04

.03

.03

.03

.03

.04

.05

.05

.05

.05

.06 

.06

1.31

0.042

0.065

4.0

Feb.

0.06

.05

.04

.06

.06

.06

.06

.05

.04

.04

.04

.05

.05

.06

.05

.05

.03

.03

.01

76T

.01

.01

.02

.06

23

15.6

9.5

6.4

3.8

59.30

2.04

3.16

182

Mar.

0.21

.01

.01

.01

.01

.01

.01

.01

.01

.01

.02

1.49

1.09

10.0

1.04

.82

.82

3.05

5.6

.62

.55

5.0

12.4

13.3

24.5

5.0

.58

.55

9.3

6.5

.82

103.35

3.33

5.15

317

Apr.

12.8

41

33

20

3.7

18.9

18.3

5.2

23

39.5

35.5

43

23

5.8

17.7

15.7

14.2

1.69

1.55

15.4

47

18.7

12.7

7.0

5.3

16.6

6.0

5.0

4.3

8*1

519.64

17.3

26.8

1,590

May

5.4

4.1

9.0

1.88 37§~

24.5

39.5

26

28

27

27

48

44

48

29

7.6

2.8

13.8

23

30

5.8

4.0

4.6

18.5

54

30.5

9.4

4.7

29.5 

47

11

727.48

23.5

36.4

2,230

June

48

84

92

92

92

96

88

78

86

96

94

96

96

96

96

81

55

54

17.9

10.2

7.1

13.5

54

96

33.5

22.5

1 . 90

2.2

1.99 

83

1,863.79

62.1

96.1

5,720

Calendar year 1955: Max 94 Min o.Ol Mean(mgd) 8.48 Mean(cfs) 13.1 Ac-ft 9,500

Fiscal year 1955-56: Max 96 Mln 0.01 Mean(mgd) 12.5 Mean(cfs) 19.3 Ac-ft 13,990

* Discharge measurement made on this day.
ISLAND OP MAUI 129

Old Hamakua ditch at Honopou, near Huelo

Location. Lat 20°53'30", long 156°15'05", on right bank 400 ft downstream from Honopou 

Stream and Wailoa ditch trail crossing in Honopou Gulch, 2.0 miles southwest of Huelo, 

2.3 miles west of Kailua, and 5.0 miles east of Haiku.

Records available. January 1918 to June 1922, November 1936 to June 1956.

Sage.--Water-stage recorder and modified Parshall flume. Datum of gage is 1,117 ft above 

mean sea level (by vertical angles).

Average discharge. 23 years (1918-22, 1937-56), 2.33 mgd (3.61 cfs).

Extremes. 1918-22. 1936-56: Maximum daily discharge, 39.5 mgd (61.1 cfs) Apr. 7, 1938; 

no flow at times.

Remarks. Records good. Wailoa and New Hamakua ditches divert most of flow above this 

station. Water used for irrigation in central Maul.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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 

3O

31

Total

Mean:

mgc

cfa

Ac-ft

July

0.06

.05

.06

.08

.06

.06

.07

.05

.05

.06

.05

.07 

.16

.15

.15

.13

.12

.13

.12

.08

.06

.06

.06

.05

.08

.08

5.8

.45

.16

.16 

7.8

16.52

0.533

0.825

51

Aug.

0.17

.23

1.36

.13

.08

.07

.06

.10

.70

.19

2.95

.22

.12

.08

.10

.08

.10

.15

.55

.21

.10

.07

.10

.49

.10

.08

.07

.06

.05

707 

.06

8.90

0.287

0.444

27

Sept.

1.01

.15

.10

.13

.08

.07

.06

.05

.05

.05

.04

.04 

.04

.04

.16

.08

.05

.05

.05

.04

.03

.03

.03

.03

.03

.03

.03

.04

.07

.06

2.72

0.091

0.141

8.3

Oct.

0.04

.06

.07

7.7

4.9

.49

.16

.06

.05

.04

.04

.04 

.03

.03

.03

.03

.03

.02

703

.03

.03

.03

.03

.03

.02

.02

.02

.02

.02

.02

.02

14.14

0.456

0.706

43

Nov.

~702 0.02

.02

.02

.02

.02

.02

.02

.02

.12

.07

.04 

.03

.03

.03

.03

.03

.03

.04

.25

1774

.16

.16

.08

.05

.03

.03

.02

.02

6.27

0,209

0.323

19

Dec.

0.02

.02

.01

702

.01

.01

.01

.01

.01

.01

.02

.02 

.02

.01

.01

.01

.01

.01

.02

.15

.11

.07

.06

.06

.05

.06

.06

.06

.06

.08 

.08

1.16

0.037

0.057

3.6

Jan.

0.07

.07

.07

.07

.07

.07

.08

.08

.0.8

.07

.06

709 

708

.08

.08

.08

.08

.08

.07

.07

.07

.07

.07

.07

.07

.08

.07

.07

.08

. 08 

.08

2.31

0.075

0.116

7.1

Feb.

0.08

.09

.08

.08

.08

.08

.08

.08

.07

.07

.07

.07 

.07

.08

.08

.08

.08

.12

.06

.06

.06

.07

.08

.14

.22

.10

.06

.04

1.05

3.38

0.117

0.181

10

Mar.

10.7

6.6

3.9

.92

.82

.78

1.66

1.86

1.95

1.77

1.95

1.25 

.13

.13

.08

.06

.06

.94

.20

.05

.05

.10

1.51

.16

9.8

.15

.08

.06

.23

.16 

.08

48.19

1.55

2.40

148

Apr.

5.3

25.5

18.0

2.6

.15

*7.1

.62

.16

1.70

7.4

1.07

6.7 

.19

.15

.16

.47

.26

.15

.12

2.9

9.9

.33

.22

.16

.15

1.58

.20

.15

.12 

.12

93.63

3.12

4.83

287

May

0.12

.10

.16

.13

.13

.82

8.7

1.72

1.04

3.6

1.74

13.9 

8.7

11.3

2.75

.20

.16

.18

.17

.19

.15

.10

.10

.13

.22

.16

.10

.12

.19 

.47

2.05

59.60

1.92

2.97

183

June

0.32

7.1

19.1

15.5

5.4

12.6

3.7

.59

4.8

17.9

12.1

1575

6.5

.17

.16

.15

.15

.16

.15

.12

.13

.29

5.7

.26

.13

.12

.08

708 

6.8

159.56

5.32

8.23

490

Calendar year I955i Max 30.5 Min 0.01 Mean(mgd) 0.775 Mean(cfs) 1.20 Ac-ft 868

Fiscal year 1955-56: Max 25.5 Min 0.01 Mean(mgd) 1.14 Mean(cfs) 1.76 Ac-ft 1,280

Discharge measurement made on this day.
130 ISLAND OP MAUI

Lowrie ditch at Honopou Gulch, near Huelo

Location.--Lat 20°54'55", long 156°15'05", on left bank 0.2 mile downstream from siphon 

across Honopou Stream, 1.6 miles west of Huelo, and 2.5 miles northwest of Kailua.

Records available. January 1910 to March 1927, February 1930 to June 1956. Published as 

"at Opana weir1 ' 1910-27.

Gage. Water-stage recorder and concrete control. Datura of gage is 598.0 ft above mean 

sea level, datura of 1929. Jan. 1, 1910, to Mar. 31, 1927, at site 1.5 miles downstream at different datum.

Average discharge. 42 years (1910-26, 1930-56), 28.4 (43.9 cfs).

Extremes.--1910-27. 1930-56: Maximum daily discharge, 75 mgd (116 cfs) Oct. 31, 1921; no 

flow at times.

Remarks. Records good. Lowrie ditch diverts water from all streams between Kailua and 

Halehaku Streams. Plow regulated by gates. Water used for irrigation in central Maul.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

1£.8

14.0

8.8

29

15.6

18.3

11.0

7.8

7.6

1074

8.0

££

47

47

44

50

3£

48

£8.5

39.5

19.0

14.9

14.7

16.6

41

43

45

55

50 

52

51

909.5

29.3

45.3

£,790

Aug.

47

5£

55

4T

47

28.5

19.0

24

55

55

55

5£

47

£5

35

35.5

46

49

43

55

25

££.5

4£

55

4£

55

41

17.8

*17 . 6

21 5

1,£35.4

39.9

61.7

3,790

Sept.

49

55

44

35

17.8

17.8

17.8

15.4

13.7

10.6

10.5

16.8

12.6

13.1

22

10.8

8.6

11.0

11.8

10.2

11.1

11.1

11.6

7.8

6.1

7.4

6.5

9.4

14.2

9.1

497.8

16,6

25.7

1,530

Oct.

6.9

10.3

11.8

47

50

40

26

12.3

11.3

13.7

*13.8

12.5

11.6

10.6

9.3

6.9

6.5

6.3

5.9

6.1

5.4

5.2

6.3

7.4

7.8

5.6

5.0

4.6

4.3

4.2

4.0

378.6

12.2

18.9

1, 16CT

Nov.

3.9

3.9

3.9

3.55

3.4

3.25

5.1

37T

3.1

20.5

8.6

4.2

3.75

5.9

5.0

4.3

5.5

8.2

6.9

35.5

33

45

TF.6

19.1

11.5

7.8

7.7

12.0

12.5

10.6

315.35

10.5

16.2

968

Dec .

10.2

9.5

8.8

5.6

5.0

4.5

4.3

4.2

4.0

3.9

4.8

4.5

3.9

3.55

3.4

3.25

3.4

4.0

3.35

2T_

1.84

.68

.56

.51

.46

.41

.41

.41

476- .36 

138.19

4.46

6.90

424

Jan.

2.1

1.71

3.9

4.2

4.5

5.4

8.6

10.3

49

4?

17,6

24

18,2

2,1

1.83

1.83

1.72

1.05

.97

.89

.81

.81

*.71 572~

15.8

34

'23.5

9.3

37.5 £7 5

10. 'l

371.13

12.0

18.6

1,140

Feb.

0.09

.06

.04

755

.05

.05

.04

.90

1.21

1.91

2.35

27

31.5

42

57.

55

51

20

3.75

1.83

1.60

1.49

37

27.5

9.9

8.8

2.85

2.35

2.35

389.67

13.4

20.7

1,200

Mar.

26

18.1

30.5

28.5

17.1

8.6

7.7

7.1

6.5

5.9

6.7

5.4

5.2

2JJ75

17.8

20

19.0

12.3

24

16.6

10.9

15.0

36

37.5

52

25.5

11.3

14.4

34 

47

20

607.1

19.6

30.3

1,860

Apr.

23

55

57

55

52

52

52

52

52

52

52

55

52

52

52

52

52

47

*47

50

60

57

55

50

42

55

52

47

40 

42

1,513

50.4

78.0

4,640

May

52

37.5

55

47

40

55

Si 55

57

57

57

57

57

22.5

1.23

22 

.89

55

55

55

52

35

30

35

47

32,5

24

21,5

32 

42

55

1,301.12

42.0

65,0

3,990

June

41

57

60

57

57

57

57

55

50

60

57

60

60

60

60

50

37.5

46

30

25

27.5

31

40

57

31

30~~ 19.2

27,5

24 

54

1,377.7

45.9

71.0

4,230

Calendar year 1955 . Max 60 Min 0.36 Mean(mgd) £1.8 Mean(cfs) 33.7 Ac-ft £4,450

Fiscal year 1955-56: Max 60 Min 0.04 Mean(mgd) £4.7 Mean(ofs) 38. £ Ac-ft 27,720

Discharge measurement made on this day.
ISLAND OP MAUI 131

Haiku ditch at Honopou Gulch, near Kailua

Location. Lat 20°55'05", long 156°14'55", on right bank of ditch and west side of Honopou 

Gulch, 160 ft below new Government Road, 2.5 miles northwest of Kailua, and 5 miles 

east of Haiku.

Records available. January 1910 to December 1928, February 1930 to June 1956. Published 

as "at Peahl weir" January 1910 to June 1919, as "at Manawai Gulch" July 1919 to December 1928, and as "at Kapalalaea Gulch" February 1930 to January 1940.

Gage. Water-stage recorder and concrete control. Datum of gage is 421.54 ft above mean 

sea level, datum of 1929. Jan. 1, 1910, to Oct. 6, 1914, water-stage recorder at site 

at Peahi weir on old Haiku ditch at different datum. Oct. 7, 1914, to Dec. 31, 1928, 

water-stage recorder at site 2.9 miles downstream at different datum. Feb. 19, 1930, 

to Feb. 20, 1940, water-stage recorder at site 0.9 mile downstream at different datum.

Average discharge. 44 years (1910-28, 1930-56), 20.7mgd (32.0 cfs).

Extremes.--1910-28. 1930-56: Maximum daily discharge, 135 mgd (209 cfs) Nov. 13, 1934, 

 JarT7~8, 9, Feb. 25-27, 1935, Jan. 27, 1938; no flow at times.

Remarks. Records excellent except those for period of no gage-height record, which are 

fair. Haiku ditch diverts water'from all streams between Kailua Stream and Maliko 

Gulch. Flow regulated by gates. Water used for irrigation in central Maul.

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

0.14

.09

.12

8.7

.12

.10

.10

.12

.14

.12

.12

7.3

55

29

34

28

1.91

36

.73

5.8

.34

.18

.16

.18

22.5

7.2

45

67

3T

50

54

488.17

15.7

24.3

1,500

Aug.

23

41

60

15.0

30

2.1

1.64

4.6

63

60

67

56

19.6

1.64

17.6

11.4

46

23.5

17.6

49

1.43

.85

*3.2

51

2.25

41

1.78

.70

772" .51

, 62

713.74

23.0

35.6

2,190

Sept.

50

4T

6.5

3.0

.95

.90

.80

.65

.62

.54

.51

.48

.44

.49

.70

.54

.40

.64

.44

.28

.20

716" .16

.16

.16

.18

.18

.24

.28

. 18

117.78

3.93

6.08

361

Oct.

0.18

.20

.20

45

50

15.5

1.03

.26

.22

.34

.28

.18

.18

.18

.18

.16

.18

.16

.16

.16

.16

.16

.20

.18

.16

.14

.14

.14

.14

.14

,12

116.43

3.76

5.82

357

Nov.

0.12

.'l6 14

.16

.16

.18

.18

.18

3.05

.40

.20

.12

.16

.12

.14

.16

.16

4.6

14.6

18.7

27.5

1.14

.44

.30

.24

.18

.18

.16

.12

74.09

2.47

3.82

227

Dec.

0.12

.14

.10

.10

.09

.08

Tio

.10

.10

.09

.14

.12

.10

.08

.08

.09

.12

.10

.11

7.0

.50

.30

.24

.18

.14

.14

.12

.16

.18

.21

.16

11.29

0.364

0.563

35

Jan.

O.09

.09

.08

.08

.07

2.8

1.36

1.05

23.5

21

n.ei

.65

.26

.11

.10

1.45

3.45

.65

.30

.06

.07

1.85

7.8

5.5

2.1

3.6

.50

.22

.26

1.57

5.7

88.13

2.84

4.39

270

Feb.

0.08

.08

.08

.08

.08

.08

.08

.08

.07

.06

.07

.08

.06

.10

.28

Ttf

.61

.37

.30

.26

.22

.22

.28

.18

a. 10

a. 10

a. 10

a. 10

19.40

0.669

1.04

60

Mar.

aO.48

a!7.1

41

35.5

26

22

24

17.5

13.0

11.1

13.0

10.2

14.4

19.7

1.50

1.36

1.15

2.95

13.1

1.05

.95

3.45

35.5

22

55.

7.3

.75

.65

29

38

1.10

479.79

15.5

24.0

1,470

Apr.

11.0

65

60

57

17.5

25.5

54

14.0

57

57

54

*57

54

34.5

38

27.5

42

2.4

1.99

19.6

63

60

46

6.6

3.1

39

9.7

4.4

3.6

9.7

994.09

33.1

51.2

3,050

May

21

2.2

34.5

6.5

4.8

57

57

57

57

57

57

57

57

57

57

54

41

24

57

63.

23.5

2.3

2.2

5.6

6.8

2.1

2"/0

5.*0

18 .1

33

980 . 31

31.6

48.9

3,O10

June

20.5

48

63

63

6O

60

42

6.8

14.2

55

38.5

63

63

63

57

10.2

3.0

5.6

2.55

2.45

2.1

2.75

3.3

59

4.6

1.78

1.71

1.64

1.57

39 5

858.75

28.6

44.3

2,640

Calendar year 1955t Max 79 Min 0.08 Mean(mgd) 10.2 Mean(efs) 15.8 Ac-ft 11,400

Fiscal year 1955-56: Max 67 Min 0.06 Mean(mgd) 13.5 Mean(efs) 20.9 Ac-ft 15,170

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of East Maul Irrigation Co.'s gage-height 

readings.
132 ISLAND OF MAUI

Kahakuloa Stream near Honokohau

Location. Lat 20°58'50", long 156°33'25", on right bank just downstream from Kapuna

Stream, 1.3 miles south of Kahakuloa, 2 miles west of Puu Makawana, and 4.3 miles southeast of Honokohau.

Drainage area. 3.4 sq ml.

Records available . July 1939 to August 1943, September 1947 to June 1956. Records for 

January 1913 to December 1914 (fragmentary), at site 1 mile upstream, not equivalent 

owing to difference In drainage area.

Gage.--Water-stage recorder and concrete control, 

graphic map).

Altitude of gage Is 330 ft (from topoAverage discharge.--11 years (1940-43, 1948-56), 11.4 mgd (17.6 cfs).

Extremes. Maximum discharge during year, 430 mgd (665 cfs) Dec. 20 (gage height, 5.99 ft), 

from rating curve extended above 50 mgd on basis of slope-area determination at gage 

height 8.35 ft; minimum, 2.75 mgd (4.25 cfs) Dec. 18, 19.

1939-43, 1947-56: Maximum discharge, 1,990 mgd (3,080 cfs) Dec. 14, 1942 (gage 

height, 7.02 ft, control then In use), from rating curve extended above 55 mgd by test 

on model of station site; minimum, 1.95 mgd (3.02 cfs) Feb. 9-11, 1954.

Remarks. Records good.

Rating table, fiscal year 1955-56 (gage height, In feet, and discharge, 

In million gallons a day

2.8

2.9

3.0 

3.3

2.85

4.4

6.5

15.5

3.6 

4.0 

4.5 

5.0

30

59

116

197

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

efs

AC-ft

July

10.6

7.5

6.1

19.7

11.1

9.5

9.3

6.1

5.5

5.9

5.1

12.4

19.8

8.5

8.1

6.3

5.7

7.5 

5.5

*5.1

4.9

4._4

576

5.7

8.4

12.2

7.1

16.0

10.6

8.5

31

289.7

9.35

14.5

889

Aug.

8.£

10.7

21.5

13.9

13.2

7.0

5.7

7.3

16.8

16.7

21

8.5

7.9

8,2

8.6

6.8

9.5

23.5 

54.5

IT78

7.0

5.9

8.1

9.5

6.3

6.3

5.5

5.1

'R~S 4.9

o . a 

8.4

338.2

10.9

16.9

1,040

Sept.

25

*T3.5

9.0

16.9

9.6

9.3

7.0

5.5

5.1

4.9

4.4

4.4

4.3

4.3

4.7

4.3

3.95

4.7 

4.3

5.1

5.1

4.4

4.1

3.95

5.65

3.8

4.7

5.0

5.8

4.7

195.45

6.52

10.1

600

Oct.

5.95

5.4

4.1

~8~T 23.5

7.5

4.9

4.1

5.95

7.6

19.2

12.9

5.9

5.2

4.5

4.5

5.95

3.8 

3.8

3.95

5.5

3.5

10.2

10.1

5.5

4.1

4.1

5.65

3.5

5.5

5.55

195.50

6.51

9.76

600

Nov.

3.35

3.65

3.35

3.15

5.15

3.15

3.0

3^

5.5

44

5.8

4.4

3.95

4.1

3.95

5.5

3.5

5.5 

8.1

15.8

6.5

5.3

4.4

4.9

4.7

5.8

6.1

6.5

4.9

5.65

178.45

5.95

9.21

548

Dee.

5.55

5.15

3.15

3.0

2.85

2.85

3.05

4.3

*3.15

3.15

9.5

4.9

3.65

3.15

3.0

2.85

2.85

2.85 

5.15

155

116

14.5

7.2

10.1

6.5

5.1

4.4

4.5

3.95

14.5 

22.5

411.75

15.5

20.6

1,260

Jan.

8.9

5.1

4.4

4.4

4.1

5.8

57T~ 5.65

20.5

21.5

6.5

59.5

4116". o

5.9

5.1

4.7

4.5 

4.1

*3.95

3.8

3.95

3.95

4.6

9.2

38

9.5

9.1

38.5

13.1

359.80

11.6

17.9

1,100

Feb.

14.8

33

12.3

17.2

7.8

5.9

8.8

34

9.4

5.9

2~5.5

8.4

14.5

21

8.7

7.0

I6~.8

27

11.7

13.5

8.8

11.5

17.1

15.2

15.0

12.6

8.2

446.6

15.4

23.8

1,370

Mar.

6.8

5.9

5.5

5.3

5.9

*5.1

4.9

4.9

5.1

4.7

18.0

5.9

4.9

28.5

6.7

5.1

5.5

19.0 

15.2

7.3

5.5

15.9

15.0

6.8

9.7

6.4

5.5

5.7

18.4

20

6

*

285.4

9.14

14.1

870

Apr.

28.5

72

34

22

12.5

24.5

15.7

9.9

8.2

7.5

6.8

14.0

6.5

5.9

8.0

13.1

15.2

*6.1 

8.2

60

57

17.8

13.1

8.2

12.7

19.5

9.0

7.0

6.5

14.9

545.9

18.1

28.0

1,670

May

11.6

7.5

7.9

l57ff M

41

64

14.8

28

10.8

18.5

14.8

21.5

29

9.9

8.0

8.4

42 

16.4

17.4

8.5

8.0

7.5

9.6

«22

14.2

9.5

7.5

11.4

12.7

24

525.5

16.9

26.1

1,610

June

9.9

11.2

15.6

11.7

9.5

14.8

18.5

10.2

8.8

11.1

8.0

16.2

15.5

10.8

9.5

7.5

7.2

16.1 

17.5

12.8

9.0

19.5

11.2

9.7

7.5

8.7

8.7

7.2

ii°

2

/TD

352.1

11.7

18.1

1,080

Calendar year 1955: Max 135 Min 2.85 Mean(mgd) 10.7 Mean(efs) 16.6 Ae-ft 12,040

Fiscal year 1955-56 : Max 135 Mln 2.85 Mean(mgd) 11.3 Mean(efs) 17.5 Ae-ft 12,640

Peak discharge (base, 400 mgd). Dee. 20 (5:50 a.m.) 450 mgd (665 efs), 5.99 ft. 

* Discharge measurement made on this day.
ISLAND OF MAUI 133

Honokohau Stream near Honokohau

Location. Lat 20°57'45", long 156°35'20", on right bank 1,000 ft upstream from Intake of 

Honokohau ditch and 5 miles southeast of Honokohau.

Drainage area. 4.2 sq ml.

Records available. March 1913 to September 1920, May 1922 to June 1956.

Gage. Water-stage recorder and masonry control. Altitude of gage Is 950 ft (by 

barometer).

Average discharge. 38 years (1916-20, 1922-56), 25.3 mgd (39.1 cfs).

Extremes.--Maximum discharge during year, 800 mgd (1,240 cfs) Aug. 18 (gage height, 

5.60 ft). from rating curve extended above 120 mgd by logarithmic plotting; minimum, 

9.3 mgd (14.4 cfs) Dec. 19.

1913-20, 1922-56: Maximum discharge, 2,420 mgd (3,740 cfs) Dec. 14, 1942 (gage 

height, 8.40 ft), from rating curve extended above 120 mgd by logarithmic plotting; 

minimum, 5.4 mgd (8.4 cfs) May 1, 1945, Jan. 5, 1946.

Remarks. Records good.

Rating table, fiscal year 1955-56 (gage height, in feet, and 

discharge, in million gallons a day)

1.9 

2.2 

2.5 

3.0

7.3

17.1

34.5

78

3.5 

4.0 

4.5

147

250

395

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

CfE

Ac-ft

July

24

18.2

15.9

32

27.5

18.6

15.5

14.8

16.7

19.8

15.2

30

65

23.5

24.5

17.6

21.5

40

15.2

14.4

13.6

15.2

20

28.5

32

46

40

42

29

79

844.2

27.2

42.1

2,590

Aug.

16.7

54

48

26

22.5

16.3

14.8

*28

35.5

71

51

30.5

20.5

20.5

28

18.0

36

129

~3T.5

15.6

12.6

12.0

2275

31

19.4

20.5

18.5

15.2

14.8

24

24.5

928.4

29.9

46.3

2,850

Sept.

72

38.5

25

41

16.3

15.5

14.8

14.4

14.0

14.0

13.6

13.6

13.2

13.2

18.0

16.0

13.6

14.8

*13.4

14.3

17.0

14.4

13.2

12.9

12.6

13.2

18.4

18.0

30

15 2

574.1

19.1

29.6

1,760

Oct.

16.0

23

15.9

70

43

25.5

14.8

13.2

13.2

26

21.5

15.6

12.9

12.6

12.3

12.3

12.0

12.0

12.0

11.6

11.6

11.6

16.8

17.5

17.6

21

13.3

*11.6

11.0 Ti^o

11.0

549.4

17.7

27.4

1,690

Nov.

11.3

11.0

11.0

10.7 ToTf

10.7

10.7

10.7

11.1

97

12.9

11.6

11.0

21

12.7

11.3

12.3

12.6

34.5

41

35

22

17.2

24.5

14.4

11.0

11.5

12.9

13.4

10.7

548.4

18.3

28.3

1,680

Dec.

10.4

10.1

10.1

9.8

9.8

9.8

10.1

9.8

1^5

9.5

11.4

10.7

10.1

9.8

9.5

9.5

9.5

9.5

38.5

296

231

19.5

13.2

13.6

12.0

11.3

11.0

10.7

10.7

14.5 

33

893.9

28.8

44.6

2,740

Jan.

12.8

11.0

10.7

10.4

10.4

10.1 loTT

21

81

*33.5

13.2

78

54

15.5

12.6

12.3

11.6

11.0

11.0

11.0

10.7

11.0

10.7

11.0

14.6

26.5

12.6

13.8

44

23 

38

657.1

21.2

32.8

2,020

Feb.

35

24

22

48

14.5

12.3

12.4

43

15.5

12.3

11.6

33.5

14.0

15.5

35

42

21.5

185

44

87

21

28

29

76

70

96

86

39

35.5

1,203.6

41.7

64.5

3,710

Mar.

15.5

14.0

13.2

13.7

14.6

12.6

12.6

12.3

12.3

12.3

17.0

12.3

 11.8 46 

13.2

12.0

17.2

18.8

49

23

12.6

57

37.5

18.0

11

17.0

22.5

19.5

39.5

32

12.9

692.9

22.4

34.7

2,130

Apr.

36

69

29

20.5

15.4

19.9

18.6

14.4

18.0

25

17.0

65

33

14.0

31

23.5

23

14.9

15.2

129

58

20.5

16.3

13.8

22

21.5

14.4

12.6

1276

17.5

840.6

28.0

43.3

2,580

May

15.2

13.2

18.6

14.0

25

50

~44 107

60

94

53

90

93

77

28

18.1

23.5

79

34.5

28.5

16.7

15.9

35.5

27.5

61

49

20.5

35.5

64

38 . 5

52

1,381.7

44.6

69.0

4,240

June

31

36.5

52

*36

36.5

44

35

39

28.5

44

28.5

74

49

48

56

28

34

47

34.5

35

29.5

71

42

35

20.

24

28

22.5

21.5

58

1,168.0

38.9

60.2

3,580

Calendar year 1955: Max 296 Min 9.5 Mean(mgd) 27.2 Mean(cfs) 42.1 Ac-ft 30,480

Fiscal year 1955-56: Max 296 Min 9.5 Mean(mgd) 28.1 Mean(cfs) 43.5 Ac-ft 31,570

Peak discharge (base. 700 mgd). Aug. 18 (7 p.m.) 800 mgd (1,240 cfs), 5.60 ftj Dec. 20 (3 a.m.) 

760 mgd (1,180 efs), 5.46 ft.

* Discharge measurement made on this day.
134 ISLAND OF MAUI

Honokowai ditch near Lahaina

Location. Lat 20°56'00", long 156°37'30", on left bank just downstream from intake on 

Honokowai Stream, 2.5 miles upstream from Pioneer Mill Co.'s powerhouse, and 5.5 miles 

northeast of Lahaina.

Records available. July 1912 to June 1956.

Gage. Water-stage recorder. Altitude of gage Is 1,900 ft (from topographic map). Prior 

to Dec. 31, 1917, staff gage at site 0.5 mile downstream at different datum. Nov. 14, 

1918, to May 27, 1921, water-stage recorder at site 1.5 miles downstream at different 

datum.

Average discharge. 37 years (1919-56), 5.93 mgd (9.18 cfs).

Extremes. 1912-56: Maximum daily discharge, 43 mgd (66 cfs) June 30, 1930; no flow at 

times,

Remarks. Ditch diverts water for power and Irrigation from Honokowai Stream just above 

station. Plow regulated by headgates at intake.

Cooperation. Records of daily discharges since July 1932 furnished by Pioneer Mill Co.

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cfs

Ac-ft

July

7.6

4.6

4.4

5 t 7

4.7

5.5

4.6

4.6

4.4

6.1

4.7

7.7

16.5

7.7

8.4

5.4

5.8

11.4

5.1

4.7

4.6

4.4

6.6

6.9

8.8

8.2

18. 0

1579

11.0

8.9 

14.1

254.0

7.55

11.7

718

Aug.

5.6

14.2

14.2

5.7

6.6

5.1

4.8

7.0

11.4

17.2

15.7

8.0

5.7

5.8

8.6

5.8

11.2

15.2

6.6

4.4

4.4

4.4

6.5

9.8

6.4

6.6

5.8

ttf

5. 8 

6.8

239.6

7.75

12.0

755

Sept.

16.6

ToTs

6.6

10.9

4.7

4.5

4.1

4.0

4.0

4.0

4.0

5.85

5^75 3~75

4.2

4.6

5.75

5.75

4.2

4.4

4.4

4.6

4.4

4.4

4.4

4.2

4.4

4.8

8.7

5 2

159.75

5.32

8.23

490

Oct.

5.5

7.1

5.5

16.5

12.4

6.4

4.3

4.1

4.0

4.8

5.7

4.4

4.4

4.4

4.5

4.0

4.0

4.O

4.0

4.0

4.0

4.O

4.0

"475" 5.65

5.3

4.2

3.75

5.75

5.75 

5.9

158. 2O

5.10

7.89

485

Nov.

4.0

4.0

4.O

4.0

4.0

4.0

5.85

3.75

3.75

17.6

4.1

5.55

3.5

376

5.0

4.4

4.5

4.6

9.8

8.8

10.5

*8.O

6.O

6.7

4.O

5.85

5.85

5.75

5.75

5.75

160.75

5.36

8.29

493

Dec.

3.75

3.75

3.75

3.75

3.75

5.75

5.75

5.75

5.75

3.65

3.75

3.75

3.75

3.75

3.75

5.75

3.75

5.75

4.5

12.2

.5

.9

.6

.6

.2

.0

.O

.O

.O

4.0

5.2

131.90

4.25

6.58

4O5

Jan.

4.1

4.0

5.65

5.65

5.65

5.65

5.65

4.3

8.2

5.9

4.2

6.9

7.1

4.5

4.0

4.O

4.0

4.O

5.8

2.6

5.25

5.25

5.4

3.4

3.4

3.4

*5.4

3.4

6.5

9 0 

*£f79~

140. 95

4.55

7.O4

453

^Feb.

7.6

4.7

5.8

8.2

4.6

5.85

5.65

4. 9

4.6

5.85

5,75

7.0

4.6

4.0

8.6

9.9

8.0

15.1

TT72

12.5

6.2

6.1

9.1

*14.9

14.5

14.4

14.1

9.7

J.0.2

 

235.60

8.12

12.6

725

. Mar.

5.7

4.9

4.6

4.6

4.5

4.1

4.1

4.0

3.85

3.75

5.75

3.1

5.7

7.2

4.0

3.75

4.7

5.9

4.8

6.8

5.9

7.4

8.6

5.5

11.7

5.5

5.6

5.6

6.5

6.4 

5.75

160.45

5.18

8.01

492

Apr.

5.8

8.5

5.3

4.6

3.85

3.75

5.75

5.75

4.9

6.4

4.9

11.4

8.5

4.1

6.8

4.8

5.1

3.75

5.75

15.1

11.2

5.5

5.95

5.8

3.75

5.75

5.75

3.75

3.75

5.65

165.25

5.44

8.42

501

May

5*4

5.4

5.65

5.75

5.8

7.9

1O.6

6.4

8.5

11.0

9.9

12.6

11.9

14.9

8.2

5.4

4.9

9.7

7.6

5.8

4.1

5.65

6.7

5.9

9.8

10.1

5.7

7.5

16.5 

TT74

11.5

248.15

8.00

12.4

762

June

7.8

10.5

1O.8

12.0

10.9

9.2

7.9

9.8

7.6

12.7

7.6

19.3

14, 2

13.4

15.6

8.5

9.5

1O.8

7.8

8.4

7.6

14.9

11.2

1O.O

5.8

5.2

773

6.2

5.6

 if

298.3

9.94

15.4

915

Calendar year 1955: Max 24 Min 2.45 Mean(mgd) 6.57 Mean(cfs) 1O.2 Ac-ft 7,560 

Fiscal year 1955-56: Max 19.5 Min 2.6 Mean(mgd) 6.37 Mean(cfs) 9.86 Ac-ft 7,15O

Discharge measurement made on this day.
ISLAND OP MAUI 135

Olowalu ditch near Olowalu

Location. Lat 20°49 I 30", long 156°36'50", on left bank 40 ft upstream from intake of pipeline to hydroelectric plant, 1.2 miles northeast of Olowalu, and 5.5 miles southeast of 

Lahaina.

Records available. August 1911 to June 1956.

Gage. Water-stage recorder and Parshall flume. Prior to June 30, 1916, staff gage in 

tailrace of powerhouse 1,000 ft downstream at different datum. July 28, 1916, to 

June 8, 1919, staff gage and June 9, 1919, to June 21, 1932, water-stage recorder, at 

site 300 ft upstream at different datum. July 1, 1932, to Oct. 7, 1933, records 

obtained by combining flows of three stations about 1,000 ft downstream.

Average discharge. 38 years (1917-20, 1921-56), 4.94 mgd (7.64 cfs).

Extremes. 1911-56: Maximum daily discharge, 13.7-mgd (21.2 cfs) Apr. 17, 1935; no flow 

at times.

Remarks. Ditch diverts water from Olowalu Stream at altitude of about 450 ft for power 

and irrigation. Regulated by headgates.

Cooperation. Records of daily discharges since January 1932 furnished by Pioneer Mill Co.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

6.8

5.4

4.6

5.7

4.4

4.1 

3.85

5.6

5.7

3.65

 5.35

4. 1

7.4

479

4.8

4.2

5.95

6.2

4.5

5.8

3.55

3.4

5.35

3.45

3.85

4.4

5.6

4.5

6.8

6.2

5.5

145.40

4.65

7.16

440

Aug.

7.7

7.6

9.5

6.9

5.8

4.8 

4.5

4.9

6.9

7.6

10.4

9. 1

7.6

6.0

5.8

5.0

8.4

6.5

5.5

4.7

4.4

4.1

5.0

6.9

4.8

4.8

4.4

5.95

5.7

472

4.6

185.65

5.99

9.27

570

Sept.

9.2

9.9

778

8.7

6.3

5.4 

5.1

4.6

4.1

3.8

5.6

5.45

3.4

3.55

5.35

3.25

3.05

3.0

5.5

5.5

5.55

5.2

2.95

2.85

2.7

2.75

2.75

2.65

3.0

2.8

129.55

4.31

6.67

597

Oct.

2.7

2.85

2.7

fey

5.0

3*8 

3.25

3.05

2.95

2.85

2.8

2.65

2.6

2.55

2.6

2.55

2.5

2.5

2.45

2.4

2.55

2.6

2.6

2.5

2.5

2.5

2.25

2.25

2.15

2.2

91.55

2.95

4.56

280

Nov.

2.25

2.25

2.2

2.2

2.15

2.15 2 1

2755

4.2

5.6

5.0

4.2

3.8

3.55

3.55

3.05

2.9

2.8

3.4

5.0

3.8

*3.85

3.5

3.75

3.1

2.9

2.7

2.65

2.6

2.5

96.05

3.20

4.95

295

Dec.

 2.5

2.4

2.4

2.5

2.25

2.2 

2.2

2.2

2.15

2.25

2.25

2.2

2.15

2.1

2.1

2.05

2735

2.05

2.1

9.0

8.0

5.15

2.95

2.95

2.95

2.95

2.85

2.8

4.1

5.2

4.9

95.70

5.02

4.67

288

Jan.

4.5

4.5

4.2

5.95

3.75

3.55

578

6.5

6.5

5.8

6.1

7.0

6.5

6.1

5.8

5.6

5.1

4.6

4.5

4.1

5.95

5.8

5.9

4.5

4.1

*5.8

5.7

6.5

9.8

10.9

159.60

5.15

7.97

490

Feb.

10.5

9 5

9^2

9.6

9.2

8.9

8.6

8.6

7.8

7.7

9.5

9.3

8.9

9.2

9.0

8.8

9.6

9.4

9.3

7.7

7.2

7.1

7.0

7.0

7.0

7.1

6^

174

 

246.2

8.49

13.1

756

Mar.

9.2

g "J

8^9

8.8

8.6

8.2

7.5

7.1

6.7

6.6

6.5

6.0

6.7

5.8

5.5

5.9

5.4

5.4

5.3

"874 5.0

8.4

6.1

6.8

6.2

5.7

5.3

6.2

7.9

6.2

211.0

6.81

10.5

648

Apr.

5.6

5.2

5.0

4.8

4.5

4.4

4.2

4.1

5.5

4.4

7.1

7.0

5.0

6.0

5.0

5.1

4.7

4.6

7.7

9.5

STff

6.9

5.7

5.1

4.8

4.5

4.4

4.1

4.0

161.7

5.59

8.34

496

May

3.8

5.7

5.9

3.6

4.0

4.5

7.9

8.9

8.9

9.7

9.6

9.J8

9.7

9.2

8.4

7.3

8.0

9.4

9.1

8.2

6.9

7.3

6.9

8.6

8.6

7.0

6.5

9.1

9.2

9.3

234.9

7.58

11.7

721

June

8.8

8.4

9.1

9.0

9.1

9.4

9.0 

8.9

9.1

9.5

8.2

10.2

T6T2

10.0

10.0

9.9

9.4

10.0

9.5

8.8

7.8

8.5

9.4

9.0

7.6

6.8

6.4

£4

J75

8.0

261.8

8.73

15.5

803

Calendar year 1955: Max 10.4 Min 2.O5 

Fiscal year 1955-56; Max 10.9 Mln 2.O5

Mean(mgd) 5.03 

Mean(mgd) 5.50

Mean(cfs) 7.78 Ac-ft 5,630 

Mean(cfs) 8.51 Ac-ft 6,180

* Discharge measurement made on this day.
136 ISLAND OP HAWAII

Waiakea Stream at middle flume house, near Mountain View

Location. Lat 19°38'25", long 1550 10'35", on left bank at middle flume house, 800 ft upstream from Olaa Sugar Co. 's main flume and 7.5 miles northwest of Mountain View.

Records available. September 1930 to June 1956.

Gage. Water-stage recorder and combined Parshall flume and concrete weir. Altitude of 

gage is 1,820 ft (by barometer).

Average discharge. 25 years (1931-56), 7.37 mgd (11.4 cfs).

Extremes. Maximum discharge during year, 69 mgd (107 cfs) Feb. 18 (gage height, 3.56 ft), 

 from rating curve extended above 40 mgd as explained below; minimum, 1.45 mgd (2.24 cfs)

Nov. 13, 14.

1930-56: Maximum discharge, 166 mgd (257 cfs) Mar. 14, 1942 (gage height, 4.43 ft),

from rating curve extended above 40 mgd on basis of weir formulas; no flow at times.

Remarks.--Records good. Large part of flow comes from three tunnels.

Rating table, fiscal year 1955-56 (gage height, in feet, and 

discharge, In million gallons a day)

0.4

.6 

1.0 

1.5

1.25 

£.35 

5.1 

9.4

2.0 

2.5 

3.0 

3.5

14.5 

£2.5 

39 

65

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

Day

1

2

3

4

5

6

7

a

9

1O

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

3O

31

Total

Mean:

mgc

cts

Ac-ft

July

2.95

2.85

2.7

2.7

2.55

2.4

2.35

2.3

2.35

3.7

2.9

2.8

2.8

2.6

2.45

2.35

2.7

3.3

2.85

2.7

2.65

2.55

2.35

2.2

2.9

*2.95

4.0

6.3

6.3

e!o

98.40

3.17

4.9O

302

Aug.

5.5

6.7

9.1

7.6

7.6

V.6

7.2

6.7

6.7

7.2

8.0

8.0

7.6

7.2

7.2

6.7

6.7

6.3

6.7

6.7

6.3

5.9

5.5

5.1

5.0

6.8

6.3

5.9

5.5

5.5

5.1

2O5.9

6.64

10.3

632

Sept.

4.8

4.8

4.6

4.4

4.3

4.1

4.2

3.95

3.8

3.5

3.45

3.45

3.3

477- 3.05

 B7T 5.9

5.0

4.6

*4.5

4.4

4.3

4.1

4.0

3.95

3.95

4.2

3.9

4.2

3 95

126.45

4.22

6.53

388

Oct.

3.95

4.2

5.1

5.1

6.5

7.6

772

7.6

7.2

6.7

6.3

6.7

6.3

6.3

5.9

5.9

5.5

5.5

5.1

4.9

4.7

4.5

4.2

3.95

3.75

3.5

3.45

3.95

3.8

3.05 

2.85

161.25

5.20

8.05

495

Nov.

2.7

2.6

2.45

2.3

2.1

1.99

1.88

1.71

1.66

1.61

2.5

2.2

1.66

3.85

4.4

3.45

3.05

2.8

4.6

8.8

8.0

8.5

9.4

13.0

11.3

11.3

11.3

13.6

11.8

17. 6

174.11

5.80

8.97

534

Dec.

15.7

TsTT

14.5

14.0

12.8

*11.6

10.8

10.3

9.4

a. 5

7.6

7.2

6.7

6.3

5.5

5.1

4.8

4.4

4.1

4.0

3.65

3.3

3.2

2.95

2.8

2.6

2.4

2.35

1735

5* 9 

4.3

214.20

6.91

10.7

657

Jan.

5.5

4.3

3.8

3.5

3.3

3.85

3.45

3.1

10.8

10.0

9.0

9.8

9.0

8.5

8.0

7.6

7.2

6.7

5.9

5.5

5.1

4.9

4.6

4.5

6.7

5.9

5.9

5.1

4.8

4.7 

4.8

185.80

5.99

9.27

570

Feb.

4.5

4.4

4.2

4.0

3.9

3.65

3.45

3.5

3.3

3.1

3.2

3.25

2.95

2.8

679

15.8

14.9

27.5

31.5

39

37

33

30

35

31

46

46

48

50

 

541.80

18.7

28.9

1,66O

Mar.

48

IT

35

28

22.5

17.7

15.1

14.5

13.4

11.8

10.8

10.3

9.4

9.4

8.0

8.5

10.2

9.5

12.9

10.8

10.3

9.8

9.0

9.0

9.4

9.5

12.5

10.8

12.1

13 2

12)3

464.7

15.0

23.2

1,430

Apr.

12.3

 11.8

11.3

10.8

10.3

9.8

9.4

8.5

10.3

12.3

12.8

14. 0

15.1

15.7

T577

15.7

15.1

14.5

13.4

12.3

11.3

10.8

9.8

9.0

8.0

7.6

7.2

6.3

5.9

5.5

332.5

11.1

17.2

1,020

May

5.1

4.7

4.5

4.9

4.2

11.2

19.8

15.7

17.5

21

20

22.5

24

24

20

18.4

17.0

15.7

14.5

12.8

11.8

10.8

9.8

9.4

9.4

9.0

8.5

*8.0

8.0

8.5 

8.5

399.2

12.9

20.0

1,230

June

8.5

9.0

9.4

9.4

9.8

9.4

9.4

9.8

10.3

10.8

10.3

11.3

12.8

14.0

15.1

15.1

15.1

15.1

14.0

12.8

11.8

10.8

10.8

12.3

10.8

10.3

9.4

9.0

8.0 

875

332.6

11.1

17.2

1,020

Calendar year 1955: Max 33 Min 1.61 Mean(mgd) 8.53 Mean(cfs) 13.2 Ac-ft 9,540

Fiscal year 1955-56: Max 5O Min 1.61 Mean(mgd) 8.84 Mean(ofs) 13.7 Ac-ft 9,940

Peak discharge (base, 50 mgd).--Feb. 18 (7:30 p.m.) 69 mgd (107 ofs), 3.56 ft. 

* Discharge measurement made on this day.
ISLAND OF HAWAII 137

Wailuku River above Hilo Boarding School ditch intake, near Hilo

Location. Lat 19°42'55", long 155°09 T 10", on left bank 1,000 ft upstream from intake of 

 Hilo Boarding School ditch, 0.8 mile west of reservoir 1, and 4 miles west of Hilo.

Drainage area. 125 sq mi.

Records available. July 1928 to June 1956.

Gage.--Water-stage recorder. Altitude of gage is 1,060 ft (by barometer).

Average discharge. 25 years (1929-40, 1941-47, 1948-56), 174 mgd (269 cfs).

Extremes.--Maximum discharge during year, 7,980 mgd (12,300 cfs) Feb. 18 (gage height, 

16 80 ft), from rating curve extended above 3,400 mgd by logarithmic plotting; minimum, 8.5 mgd (13.2 cfs) Nov. 10.

1928-56: Maximum discharge, 41,000 mgd (63,400 cfs) Aug. 11, 1940 (gage height, 

28.6 ft, from floodmarks), from rating curve extended above 3,400 mgd by logarithmic 

plotting; minimum, 0.16 mgd (0.25 cfs) Mar. 9, 1941.

Remarks.--Records good. Hilo Water Works diverts about 1 mgd above station for domestic 

supply, and water passing station is used for power by Hilo Electric Light Co.

Revisions (fiscal years). WSP 865: 1929-36(M) . WSP 965: 1941.

Rating table, fiscal year 1955-56 (gage height, in feet, and 

discharge, in million gallons a day)

1.8 

2.1 

2.5 

3.0 

4.0

9.4

18.0

34.5

5.0 

7.0 

9.0

11.0

13.0

245

570

1,140

2,020

3,510

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

29.5

25.5

22.5

25

26

38

24.5

25

23

83

51

34.5

30 

30

25.5

29

37

63

37

28

24.5

22.5

21

*P

59

114 

414

173

120

189

1,898.8

61.3

94.8

5,830

Aug.

Ill

147

299

137

*119

110

86

66

60

56

286

134

86 

66

63

57

57

46

67

130

66

52

46

44 

39

144

144 

79

66

57

46

2,966

95.7

148

9,100

Sept.

49

52

44

37

34.5

32

30

42

28.5

25

24.5

2875

29.5 

24.5

28.5

212

66

46

39

44

60

49

37

30 

28

34.5

44 

32

49

52

1,332.0

44.4

68.7

4,090

Oct.

49

62

110

82

117

137

*120

102

76

63

52

96

74 

52

44

39

34.5

30

26

24

22.5

22.5

21

17.7 

15.9

14.7

4P 131

28.5

21

1,745.8

56.3

87.1

5,360

Nov.

18.0

15.6

14.7

12.6

11.7

15.0

19.4

12.3

10.2

9^5

28

39

28 

280

216

111

66

49

330

805

395

451

287

693 

440

217

137 

437

328

778

6,254.0

208

322

19,190

Dec.

676

316

197

137

94

76

*62

52

59

70

44

39

34.5 

30

29

25.5

24.5

22

21

28

25

19.0

16.2

15.0 

14.1

13.2

iP37.5

2O9

151

2,574.8

83.1

129

7,900

Jan.

356

102

69

52

39

82

63

37

324

499

182

168

124 

96

79

54

44

37

32

28

28

24.5

21.5

20.5 

482 

132

94

63

46

42

*34.5

3,455.0

111

172

10,600

Feb.

30

27

28.5

24.5

21

18.0

1874

71

114

186

77

64

37 

30

378

1,170

867

5.150

1,650

820

475

501

555

2,290 

667

2,790

1,800 

2,500

1,480

21,575.4

757

1,140

65,600

Mar.

1.500

758

424

301

564

259

197

221

185

157

110

102

79 

86

72

85

320

170

471

551

185

157

110

128 

188

185

606 

235

208 

724

554

9,228

238

461

28,520

Apr.

185

146

247

189

110

86

82

66

5OO

561

671

492

540 

259

197

195

268

146

119

90

72

72

79

54

46

46

60 

42

54.5 

34.5

5,687.0

190

294

17,450

May

54.5

27.5

25.5

54.5

27.5

259

693

502

579

965

976

574

592 

702

414

267

185

157

119

94

76

66

57

63 

76

99

69 

76

63 

114

120

8,086.5

261

404

24,820

June

86

219

287

299

194

157

128

157

128

250

128

256

628 

557

494

254

155

119

94

79

65

54

70

514 

161

94

72 

66

52 

72

5,567

186

288

17,080

Calendar year 1955: Max 1,60O Min 9.5 Mean(mgd) 167 Mean(cfs) 258 Ac-ft 186,800

Fiscal year 1955-56: Max 3,130 Min 9.5 Mean(mgd) 192 Mean(cfs) 297 Ac-ft 215,300

Peak discharge (base, 5,600 mgd). Feb. 18 (11 p.m.) 7,98O mgd (12.5OO cfs), 16.80 ft. 

* Discharge measurement made on this day.
138 ISLAND OP HAWAII

Kapehu ditch diversion near Hilo

Location. Lat 19°43'45", long 155°11'05", on left bank 40 ft downstream from gate on 

Kapehu ditch, 3.1 miles northwest of Piihonua, and 6.2 miles west of Hilo.

Records available. May 1954 to June 1956.

Gage. Water-stage recorder and de Fabritis type-H flume.

Extremes. 1954-56: Maximum daily discharge, 6.6 mgd (10.2 cfs) Feb. 18, 1956; no flow 

occasionally.

Remarks. Records good. Ditch diverts water from Kapehu ditch for fluming of sugarcane 

near Hilo.

Revisions. Revised figures of discharge, in million gallons a day, for period May to June 

1954 and fiscal year 1955 (complete daily tables), superseding those published in 

WSP 1399, are given herewith:

Discharge, In million gallons a day, 1954

Day

1

2

3

4

5

6

May

_

-

_

-

-

-

June

2.7

2.65

2.65

2.6

2.6

2.55

Day

7

8

9

10

11

12

May

_

-

_.

_

~

-

June

2.65

2,8

2.85

2V75

2.7

2,7

Day

13

14

15

16

17

18

May

_

_

 .

_

-

_

June

2.65

2.6

2.55

2.55

£.6

2.7

Day

19

20

21

22

23

24

May

t2.4

2.7

2.3

2.4

2.25

2.5

June

2.75

2.75

2.7

2.65

2.65

*2.7

Day

25

26

27

28

29

30

31

Total. ...............................................................................

May

2.8

2.65

2.55

2.75

3.05

2.65

2.7

_

-

June

2.65

2.65

2.7

2.8

2.75

2.7

-

80.30

4.15

246

* Discharge measurement made on this 

t Result of discharge measurement.

Discharge, In million gallons a day, fiscal year July 1954 to June 1955

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

Mean:

mgd

cfs

Ac-ft

July

2.75

ft?

2.85

2.85

2.85

2.8

2.75

2.75

2.7

2.7

2.85

3.1

2.8

2.85

2.8

2.75

2.9

2.75

2.75

2.7

2^65 

2.65

2.65

2.9

3.05

2.9

2.8

2.8

2 75

2 75

87.25

2.81

4.35

268

Aug.

3.0

2.75

2.7

2.8

2.85

2.8

2.75

2.8

2.8

2.75

3.15

3.6 373"

3.45

3.25

3.15

3.1

3.05

3.15

.80

.03

.03 

.02

.02

.01

.01

.01

.01

.01

.01

.01

58.17

1.88

2.91

179

Sept.

0.01

.01

.01

.01

.01

.01

.01

.02

.01

.01

.01

.01

.01

.91

.01

.01

.01

.05

ToT

.01

.02

.01 

.01

.01

.02

.01

.01

.01

.01

.01

0.37

0.012

0.019

1.1

Oct.

0.01

.01

.01

.01

.02

.01

.01

.01

.01

.01

.01

.02

.01

.01

.01

.01

.01

.01

0

s

.01

.01 

.05

a Qy Ttr

.02

.02

.02

.01

.01

.01

0.44

0.014

0.022

1.4

Nov.

0.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.06

-lOT.

.03

.02

.02

.02

.02

.02

.02

.02 

.02

.02

.02

.02

.02

.02

.02

.02

0.58

0.019

0.029

1.8

Dec .

0.02

.02

.02

.02

.02

.02

.02

.02

.03

.01

.03

.02

.02

.07

0.

0

.01

.01

0

0

.01

.01 

.01

.01

.01

.01

.01

.01

.01

.01

.01

0.47

0.015

0.023

1.4

Jan.

o.'oi

.01 loi

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

..02

.01 

.01

.01

.01

.01

.01

.01

.01

.01

.01

0.32

0.010

0.016

1.0

Feb.

0

0

0

0

0

0

0

0

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01 

.01

.02

ToT

.01

.01

.01

0.21

0.008

0.012

0.6

Mar.

0.01

.01

.01

.01

.01

752" .02

.02

.02

.02

.02

.02

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01 

.01

.01

.01

.01

.01

.01

.01

.02

.02

0.40

0.013

0.020

1.2

Apr.

0.02

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.02

.02

.02

.05

735

.05

.02

.02

.01 

.01

.02

.01

.01

,01

.01

.01

.01

0.45

0.014

0.022

1.5

May .

0.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01 

.01

.01

.01

.01

.01

.01

.01

.01

.01

0.51

0.010

0.016

1.0

June

0.01

.01

£~.01

.01

.01

.01

.01

.01

.75

1.14

1.11

1.08

1.05

1.08

1.08

1.05

1.24

1.51

1.58

1.34

1.40 

1.52

1.45

1.68

1.72

1.72

1.80

1.80

1.84

28.62

0.954

1.48

88

Calendar year 1954t Max - Min - Mean(mgd) - Mean(cfs) - Ac-ft -

Fiscal year 1954-55; Max 3.6 Min 0 Mean(mgd) 0.486 Mean(cfs) 0.752 Ac-ft 546

Note. No gage-height record Sept. 5 to Oct. 19, Dec. 3-8j discharge estimated on basis of records 

for Kapehu ditch.
ISLAND OP HAWAII 

Kapehu ditch diversion near Hilo Continued

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

139

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

Mean:

mgc

cfs

Ac-ft

July

1.84

1.84

1.84 

1.84

1.96

1.88

1.88

1.88

1.96

2.05

1.92

1.88

1.88

1.84

1.88

1.92

1.92

2.05

1.92

1.88

1.84

1.84

1.80

1.76

1.92

1.88

2_a

27T

2.0

1.96 

2.05

59.31

1.91

2.96

182

Aug.

1.92

2.05

2.2 

*2.0

2.05

2.1

2.05

2.0

2.05

2.15

2.3

T3

2.1

2.1

2.1

2.05

2.1

2.05

2.15

2.15

2.05

2.05

.68

.02

.02

..01

76T

.01

.01

.01

.01

46.75

1.51

2.34

143

Sept.

0.01

.01

.01 

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

0.30

0.010

0.016

0.9

Oct.

0.01

.01

.01 

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

1.03

1.80

1.84

1,84

1.84

1.84

1.80

1.76

1.84

2.2

2.7

^715

2.05 2 05

26.91

0.868

1.34

83

Nov.

2.05

2.3

2.5 

2.4

2.3

2.3

2.2

2.05

1.96

1.99

2.2

2.15

2.05

2.6

F7f5

2.15

2.05

2.05

.44

0

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

40.09

1.34

2.07

123

Dec.

O.Sl

ToT

.01 

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.02

752

.02

.02

.02

.02

.02

.02 

.02

0.40

0.013

0.020

1.2

Jan.

0.01

.01

.01 

1.52

2.4

2.5

2.45

2.4

3.05 27T

2.5

2.6

1.96

1.64

1.56

1.68

2.3

2.3

2.55

2.65

2.7

2.65

2.65

2.6

2.55

2.4

2.45

2.3

2.1

2.3 

2 45

65.94

2.13

3.30

202

Feb.

*2.65

2.9

3.15 

2.85

2.65

2.55

2.5

2.65

2.65

3.4

3.15

2.65

2.3

2.3

3.0

4.3

4.9

6^6

5.1

4.8

3.75

3.35

3.95

5.8

4.8

6.2

5.8

5.8

5.4

111.90

3.86

5.97

343

Mar.

5.4

T7S

4.6 

4.4

4.9

4.4

4.3

4.8

4.5

4.4

4.4

4.3

4.2

4.4

4.1

4.6

5.0

4.4

5.4

4.8

4.4

4.2

4.1

4.4

4.6

4.5

5.1

4.4

4.5

4.8 

4.4

141.5

4.56

7.06

434

Apr.

4.1

4.1

*4.1 

4.1

3.95

3.8

3.8

3.8

4.8

5.0

5.2

5.3

775

4.5

4.4

4.6

4.7

4.5

4.4

4.2

4.1

4.1

4.0

3.8

3.7

3.7

3.7

3.5

3.4

3.1

125.45

4.18

6.47

385

May

3.15

3.15 t*3.15

4.0

5,6.

4.8

5.3

5.3

5.4

5.1

5.0

5.1

4.4

3.95

3.7

3.65

3.6

3.5

3.45

3.4

3.5

3.7

3.7

3.7

3.45

3.4

*3.45

3.8

123.30

3.98

6.16

378

June

3.35

3.95

3.95 

3.75

3.6

3.3

3.35

3.5

3.35

3.75

3.25

3.75

4^6

173

4.0

3.45

3.25

3.2

3.2

3.1

3.0

3.0

3.4

4.2

3.2

3.0

3.9

2.9

£437?

103.55

3.45

5.34

318

Calendar year 1955! Max 2.7 Min 0 Mean(mgd) 0.559 Mean(cfs) 0.865 Ac-ft 626

Fiscal year 1955-56: Max 6.6 Min 0 Mean(mgd) 2.31 Mean(cfs) 3.57 Ac-ft 2,590

* Discharge measurement made on this day.

527571 O -59 -10
140 ISLAND OP HAWAII

Kapehu ditch near Hilo

Location. Lat 19°43'40", long 155°11'00", 0.9 mile downstream from intake, 3 miles west 

of Piihonua, and 6 miles west of Hilo.

Records available. March 1938 to June 1941, July 1942 to June 1948, July 1953 to June 

1956.

Gage. Water-stage recorder and de Fabritis flume. Altitude of gage is 2,000 ft (from 

topographic map).

Average discharge. 12 years (1938-41, 1942-48, 1953-56), 1.51 mgd (2.34 cfs).

Extremes. 1938-41. 1942-48, 1953-56: Maximum daily discharge, 6.5 mgd (10.1 cfs) 

Apr. 9, 1938; no flow at times.

Remarks. Records good. Ditch diverts water from Kapehu Stream 0.6 mile northwest of 

station for domestic use in Hilo. Flow sometimes diverted into Kapehu diversion ditch 

(see preceding page) .

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cfa

Ac-ft

July

0.29

.28

.28

.25

.24

.21

.21

.21

.21

.22

.25

.25

.25 

.25

.24

.22

.22

.22

.21

.20

.19

.18

.17

.18

.18

.17

.16

.11

.10

7TT

.12

6.58

0.206

0.319

20

Aug.

0.11

.09

.08

.14

.21

.17

.15

.12

.11

.09

.07

.08

.08 

.07

.07

.07

.07

.08

.07

.06

.06

.07

1.55

2.2

2.3

2.4

2.4

2.3

2.4 

2^45

2.4

22.52

0.726

1.12

69

Sept.

2.45

£.4

2.4

2.4

2.4

2.4

2.4

2.4

2.55

2.55

2.4

2.35

2.4 

2.25

2.6

2.8

274

2.4

2.55

2.45

2.4

2.4

2.55

2.25

Z.Z

2.5

2.4

2.55

2.4 

2.4

71.80

2.59

5.70

220

Oct.

2.4

£.5

2.5

2.45

2^55

2.45

2.4

2.4

2.35

*2.35

2.4

2.45

2.35 

2.5

2.3

2.25

2.25

1.03

.21

.16

.15

.11

.09

.08

.08

.08

.07

.08

Tof

.05

42.86

1.58

2.14

152

Nov.

0.04

.04

.05

.04

.04

.04

.05

Tos

.05

.04

.03

.04

.04 

.07

.03

.03

.04

.04

2.25

2.65

2.45

2.45

2.5

5.2

£.5

2.4

2.4

2.7

2.45 

5.25

51.90

1.06

1.64

98

Dec.

2.8

2.5

2.4

271

2.4

2.4

*2.4

2.4

2.4

2.4

2.4

2.55

2.45 

2.6

2.6

2.55

2.55

2.55

2.55

2.6

2.55

2.55

2.5

2.5

2.45

2.45

2.45

2.6

2.6 

2.95

2 . 95

78.45

2.55

5.91

241

Jan.

Iff

2.7

1.01

.05

.05

.05

.05

.04

.04

.06

.05

.04 

.05

.07

.07

.07

.07

.08

.08

.08

.08

.08

.09

.08

.09

.09

.09

.09 

.10

.10

11.02

0.555

0.549

54

Feb.

0.06

.05

.05

.05

.05

.05

.03

.04

.04

.04

.03

.03

.03 

.03

1,59

1.11

.15

.37

.05

.05

.02

752

.06

.15

.07

.41

.14

.11

.07

4.85

0.167

0.£58

15

Mar.

0.08

.04

.03

T6T

.06

.05

.05

.10

.04

.04

.05

.05

.05 

.05

.05

.07

.10

.07

.11

75?

.05

.06

.06

.07

.08

.07

.10

.05

.09 

.09

.07

1.98

0.064

0.099

6.1

Apr.

0.05

.07

.07

.07

.07

.08

.08

.08

.12

.15

.12

.11

.08 

.07

.07

.10

.06

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05 

.06

2.11

0.070

0.108

6.5

May

0.06

.06

.07

.07

.06

.14

.21

.07

.14

.25

.15

.11

.11 

.14

.07

.04

.04

.04

.04

.04

.04

.04

.05

.05

.07

.05

.04

.04

.04 

.05

.04

2.40

0.077

0.119

7.4

June

0.04

.06

.06

.06

.04

.05

.04

.04

.05

.08

.05

.08 TO!

.06

.05

.05

.05

.05

.04

.05

.05

.06

.06

.04

.04

.04

.04

.04 

.05

1.58

0.053

0.082

4.8

Calendar year 1955: Max 3.55 Min 0.05 Meanfmgd) 1.92 Mean(ofs) 2.97 Ac-ft 2,140

Fiscal year 1955-56: Max 3.25 Min 0.02 Mean(mgd) 0.759 Mean(cfs) 1.17 Ac-ft 854

* Discharge measurement made on this day.
ISLAND OP HAWAII 141 

Waiilikahi Stream near Waimanu

Location.--Lat 20°07'40", long 155°39'55", on right bank 30 ft upstream from Waimanu

trail bridge, 1.7 miles upstream from confluence with Waimanu Stream, 1.9 miles southeast of head of Awini ditch, and 2.2 miles southwest of Waimanu.

Drainage area. 0.4 sq mi.

Records available. March 1939 to June 1956. Prior to July 1941, published as Waimanulillii Stream near Waimanu.

Gage. Water-stage recorder. Altitude of gage is 2,740 ft (by barometer). 

Average discharge. 17 years, 6.48 mgd (10.0 cfs).

Extremes. Maximum discharge during year, 210 mgd (325 cfs) Jan. 13, Feb. 18, from rating 

curve extended above 25 mgd as explained below; maximum gage height, 3.70 ft Jan. 13; 

minimum discharge, 0.73 mgd (1.13 cfs) Dec. 19.

1939-56: Maximum discharge, 544 mgd (842 cfs) Dec. 20, 1946 (gage height, 5.17 ft), 

from rating curve extended above 25 mgd by test on model of station site; minimum,. 

0.15 mgd (0.23 cfs) Mar. 17, 18, 1944.

Remarks. Records fair except those for periods of no gage-height record, which are poor.

Rating tables, fiscal year 1955-56 (gage height. In feet, and discharge, 

In million gallons a day)

July 1 to Jan. 13 Jan. 14 to June 30

0.4 

.5

1.1

0.32 

.78 

3.1 

6.2

1.4 

1.8 

2.2

12.5

25.5

43.5

0.5 

.6

1.2

0.70

1.30

4.0

7.9

1.5 

2.0 

2.5 

3.0

61

110

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

Cf£

Ac-ft

July

6.8

6.0

4.4

13.4

4.5

4.6

7.8

5.5

16.7

17.3

5.1

5.5

14.0

4.3

3.95

13.5

12.9

12.5

4.0

3.6

2.7

2.35

2.25 6T5~

9.8

3.65

5.1

7.7

3.85

17.5 

32.5

260.25

8.40

13.0

799

Aug.

*8.8

14.7

7.0

4.2

6.0

3.85

3.55

4.0

9.1

10.5

12.4

5.6

3.6

3.0

6.1

4.7

11.4

10.2

4.1

2.85

2.25

1.85

3.65

3.95

2.1

6.1

12.1

2.9

2.0

1 « 69

176.64

5.70

8.82

542

Sept.

7.9

4.2

3.15

2.55

1.69

1.45

2.05

1.93

1.38

1.52

1.32

1.52

1.91

2.1

11.8

9.5

4.0

2.35

1.69

2.85

2.55

1.61

1.38

1.32

1.32

2.3

4.8

4.6

7.4

2 35

95.89

3.20

4.95

294

Oct.

1.75

5.4

9.3

12.6

16.0

14.8

7.8

*8.3

5.5

5.5

2.5

2.1

1.77

1.53

1.32

1.25

1.18

1.12

T7I5-

1.12

1.12

1.12

2.1

4.8

2.75

2.15

1.61

1.38

1.45

1 32

116.86

3.77

5.83

359

Nov.

1.32

1.52

1.25

1.18

1.18

1.18

1.18

1.18

1.18

1.12

1.12

2.2

2.8

1.45

2.95

2.6

1.45

1.52

5.5

52.

14.9

10.7

28.5

50

5.8

2.8

2.65

11.2

5.85

2 25

178.13

5.94

9.19

547

Dec.

1.69

1.38

1.52

1.25

1.25

1.25

1.18

1.12

1.12

1.12

1.25

*1.61

1.45

1.25

.98

.85

.78

.78

.75

2575"

15.5

5.1

1.55

1.45

1.38

1.12

.98

.91

.85

85

74.38

2.40

3.71

228

Jan.

0.78

.85

1.52

.91

.85

.78

.78

.78

45

T8.4

5.75

16.0

25

4.4

1.89

1.50

1.03

.91

.85

.85

.80

.80

.80

.75

1759

2.3

1.09

.85

1.61

1.20 

.85

135.07

4.36

6.75

415

Feb.

B75- 0.80

8.7

9.5

1.90

 1.10

.91

1.68

4.2

2.55

1.09

.97

1.05

1.15

5.2

5.55

2.5

67

15.1

58

11.2

10.8

7.7

13.9

4.1

11.6

18.2

73

7.7

 

349.83

12.1

18.7

1,070

Mar.

3.2 2.5

1.77

1.95

2.5

1.69

1.45

5755

4.1

2.2

1.55

1.80

24.5

15.4

4.6

11.7

28

5*. 2

2J65

1.95

2.5

2.75

2.5

25

6.1

2.85

2.05

2.5

15.6

6.4 

2.5

186.17

6.01

9.50

571

Apr.

1.77

16.6

56

7.8

5.5

*17.5

12.6

5.1

20

19.9

15.8

12.6

10.5

4.7

4.2

5.7

4.3

2.5

1.95

2.1

2.95

5.1

6.5

3.7

3.25

3.5

1.95

1.53

1.50

 l!-

255.00

7.83

12.1

721

May

8.1

7.7

8.7

12.5

4.9

11.3

26.5

T57T

12.7

20.5

12.8

7.0

10.0

5.6

5.6

4.8

11.1

6.5

7.4

8.8

5.6

4.4

4.9

5.1

5.8

5.5

3.05

375" 2.45

6.2 

4.9

258.10

8.35

12.9

792

June

*5.5

9.4

7.7

7.8

8.8

9.6

7.8

4.9

8.7

8.0

3.8

16.7

27

23.5

13.0

4.3

4.5

21.5

19.9

7.8

3.2

975" 2.65

57"6.7

2.95

5.1

4.2

5.55 

22

512.95

10.4

16.1

960

Calendar year 1955: Max 140 Mln 0.73 Meanfmgd) 6.91 Mean(cfs) 10.7 Ac-ft 7,740

Fiscal year 1955-56: Max 73 Mln 0.73 Mean(mgd) 6.50 Mean(cfs) 10.1 Ac-ft 7,300

Peak discharge (base, 150 mgd). Jan. 13 (4 a.m.) 210 mgd (325 cfs). 3.70 ftj Feb. 18 (2 p.m.) 

210 mgd (325 efs), 3.68 ft; Feb. 28 (12:50 a.m.) 170 mgd (265 cfs), 5.43 ft._____________ 

* Discharge measurement made on this day.

Kate. Ho gage-height record Oct. 15-23, Oct. 28 to Kov. 12, Nov. 14, 17-19, Dec. 2-11; discharge estimated on basis of probable decrease In flow and records for nearby streams.
142 ISLAND OP HAWAII

Awini ditch at East Honokaneiki Gulch, near Niulii

Location. Lat 20°09'55" ) long 155°43'10", at flume across East Honokaneiki Gulch, 

4.5 miles southeast of Niulii.

Records available. October 1927 to June 1949, July 1950 to June 1956.

Gage. Water-stage recorder. Altitude of gage is 2,000 ft (from topographic map).

Average discharge. 26 years (1928-38, 1939-49, 1950-56) , 12 .0 mgd (18.6 cfs).

Extremes. 1927-49. 1950-56: Maximum daily discharge, 33 mgd (51 cfs) Jan. 8, 1935, 

Aug. 10, 1938; no flow at times.

Remarks. Records good except those for periods of no gage-height record, which are poor.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgd

cfs

Ac-ft

July

24.5 

SITS

19.5 

21

18.8

15.0

17.2

19.5

15.0

22

22

18.8

21

21

16.5

15.8

22.5

24.5

20

15.0

11.9

10.1

9.0

8.5

1675

15.8

12.5

19.5

*17.4

17.2

22.5

555.0

17.9

27.7

1,700

Aug.

18 

20

21 

T5J.O

15

13

12

15

19

16

21

16

11

10

13

16

20

18

17

11

9.0

8.5

11

15

9.0

15

21

12

9.0

7.5

10

447.0

14.4

22.3

1,370

Sept.

Ta- 21

il

9.0 

7.7

7.0

6.7

6.6

6.5

6.2

6.2

6.0

6.0

6.0

21

20

15

10

8.0

7.0

6.0

5.6

5.3

5.1

5.0

5.0

10

11

21

10

288.9

9.63

14.9

887

Oct.

6.0 

8.0

21

25

25

25

22

22

13

11

*9.0

8.0

6.5

5.6

5.1

4.7

4.3

3.9

3.65

3.9

3.3

3.15

3755

10.7

12.5

6.0

4.8

4.0

4.9

3.7

3.15

292.70

9.44

14.6

898

Nov.

2.95 

2.75

2.55

2.2

2.05

1.94

1.89

T7§?

3.7

4.0

4.7

9.9

5.2

12.3

10.8

5.6

3.9

9.0

24.5

21

19.5

24.5

24.5

17.2

11.3

8.5

19.4

12.5

8.5

281.12

9.37

14.5

863

Dec.

6.5 

5.6

5.2

4.4

4.3

4.6

4.5

*4.3

3.9

4.6

7.0

5.6

5.2

4.4

3.85

3.65

3.15

2.95

l575~

22

13.1

8.5

7.5

6.0

5.0

4.6

4.0

3.65

3.55

3.15

188.35

6.08

9.41

578

Jan.

2.95 

3715"

9.4

3.7

3.3

2.95

4.8

24.5

2275

14.4

17.2

18.8

12.6

8.0

6.0

5.0

4.3

4.0

3.9

3.65

3.45

3.3

3.0

5.2

9.7

5.2

3.75

4.7

4.5

3.15

225.95

7.29

11.3

693

Feb.

2.9 

10.5

22.5

11.9

7.5

5.6

4.9

10.5

13.0

9.4

10.7

9.6

7.6

18.8

15.0

12.5

21.5

19.5

26

20

20

13.6

22.5

13.1

15.0

20

24.5

17.7

427.3

14.7

22.7

1,310

Mar.

11.9 

10.7

9.0 

8.0

8.0

7.0

7.0

8.4

11.9

8.0

6.5

5.6

2275

20

11.9

12.0

24.5

13.6

9.0

8.0

7.0

6.5

6.0

16.2

14.7

8.5

7.0

7.0

14.2

15.4

8.5

334.5

10.8

16.7

1,030

Apr.

llif

22.5 

14.5

12.7

24.5

2175

19.5

23

24.5

24.5

22.5

22.5

19.5

18.8

17.2

17.2

12.5

10.7

9.6

11.3

14.8

21

15.8

11.9

14.4

9.6

8.0

7.0 

8 7

483.3

16.1

24.9

1,480

May

24.5 

21

19.5 

24.5

17.2

19.5

26

21.5

24.5

22.5

24.5

22.5

22.5

21

17.2

15.0

22

18.8

22

22.5

17.2

14.4

19.5

20

21

20

14.4

11.5

T57o

16.5

619.8

20.0

30.9

1,900

June

15.1 

22

21 

*23

26

26

26

24.5

24.5

26

21

22

28

26

24.5

18.8

18.0

24.5

24.5

22.5

17.2

15.0

18.0

26

24.5

16.5

13.7

15.0

14 

24

645.8

21.5

33.3

1,980

Calendar year 1955: Max 30 Mln 1.77 Mean(mgd) 12.5 Mean(cfs) 19.3 Ac-ft 14,000

Fiscal year 1955-56! Max 28 Min 1.89 Mean(mgd) 13.1 Mean(cfs) 20.3 Ac-ft 14,690

* Discharge measurement made on this day.

Note. No gage-height record Aug. 1 to Oct. 11, June 29, 30; discharge estimated on basis of records for nearby stations.
ISLAND OF HAWAII 143 

East Honokaneiki Intake to Awlni ditch at East Honokaneiki Gulch, near Niulil

Location. Lat 20°09'55", long 155°43'15", on intake tunnel delivering water from East 

Honokaneiki Gulch to Awinl ditch, on west side of gulch, 4.5 miles southeast of 

Hiulli.

Records available.--October 1927 to June 1938, July 1939 to June 1949, July 1951 to June 

T555~.

Gage.. Water-stage recorder and sharp-crested weir. Altitude of gage is 2,000 ft (from 

topographic map).

Average discharge. 23 years (1928-36, 1937-38, 1939-40, 1941-49, 1951-56), 1.16 mgd 

(1.79 cfs) .

Extremes. 1927-38. 1939-49, 1951-56: Maximum daily discharge, 8.0 mgd (12.4 cfs) 

 Dec. 29, 1937, Mar. 20, Apr. 7, 1938, Jan. 12, 1946; no flow at times.

Remarks. Records good except those for period of no gage-height record, which are poor. 

Revisions (fiscal years). WSP 725: 1928-30.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

1.80

1.30

.83

2.2

.87

.60

.62

.74

1.64

3.5

1.30

.92

2.5

1.01

.68

1.62

5.5

2.5

1.01

.68

.52

.41

.52

7ST

1.10

.60

.96

2.25

*.90

5.55

5.7

46.45

1.50

2.52

145

Aug.

1.92

5.15 276"

1.06

.97

.71

.60

.89

1.50

1.51

2.7

1.55

.74

.44

1.55

1.10

2.5

2.55

1.25

.52

.55

.26

.65

1.14

.55

1.51

5.0

.56

.29

.20 

745

57.28

1.20

1.86

114

Sept.

1.85

1.05

.44

.29

.20

'.14

.12

.12

.10

.08

.06

.06

.06

.08

5.25

2.15

1.02

.55

.42

i .20

.10

.06

.04

.04

.05

.05

.29

.67

2.55

.40

16.21

0.540

0.856

50

Oct.

0.17

.52

2.75

4.0

5.6

5.1

2.9

2.45

.84

.68

*.41

.58

.52

.29

.26

.25

.17

.17

.14

.17

.14

.12

.14

.42

.29

.20

.17

.12

.12

.10 

.08

29.25

0.944

1.46

90

Nov.

0.06

.06

.04

.04

.04

05

75s

.05

.05

.55

.26

.22

.61

.25

1.50

.78

.26

.14

1.90

5.7

3.45

2.65

3.65

3.7

2.05

.97

.64

2.6

1.40

.64

35.84

1.15

1.75

104

Dec.

0.41

.29

.26

.17

.14

.12

.12

.10

*.08

.06

.12

.29

.14

.12

.08

.06

.04

.04

.05 275"

5.7

T73-9

.52

.41

.29

.23

.20

.14

.12

.12 

.08

14.07

0.454

0.702

45

Jan.

0.08

.09

1.00

.20

.12

.08

.06

.25

4.5

2.8

1.15

2.15

.58

.02

702

.02

.02

- .22

\.29

.25

.25

.17

.17

.14

.54

.88

.29

.17,

.12

.14 

.10

16.61

0.536

0.829

51

Feb.

0.08

T73S

5.0

*5.0

.54

.26

.17

.12

.56

.60

.54

.62

.48

.69

2.55

.79

.52

5.25

2.55

5.55

1.70

1.60

1.55

2.0

1.21

1.35

1.85

1.80

1.01

 

39.15

1.35

2.09

120

Mar.

1.22

1.16

.79

.64

.60

.44

.41

.80

1.56

.52

.52 732"

4.4

5.85

1.46

1.50

5.0

T7?6

.85

.60

.44

.41

.52

5.15

2.15

.64

.41

.55

2.1

2

1 *\

 -LD

.56

40.66

1.51

2.05

125

Apr.

0.32

2.2

27T

.38

.20

.45

.44

.20

.45

.54

.50

.44

.41

.26

.26

.23

.25

.20

.17

.17

.17

.25

.29

.20

.20

.25

.17

-44 7T5

.20

12.12

0.404

0.625

57

May

0.44

.29

.29

.58

.20

.23

.46

.54

.29

.56

.42

.29

.29

.29

.23

.23

1.11

1.31

2.5

2.9

1.06

.87

1.97

1.86

2.1

1.46

.64

.44

.67

1.31 

1.48

26.71

0.862

1.35

82

June

0.67

3735

2.8

*5.15

5.5

5.0

375

1.82

5.1

5.9

.98

5.75

4.9

3.7

2.65

1.60

1.52

5.2

a3.0

a2.4

1.21

.97

2.1

4.2

2.25

1.21

.97

1.02

.73

4.3

77.05

2.57

5.98

256

Calendar year 1955: Max 6.9 Min 0.01 Mean(mgd) 1.29 Mean(cfs) 2.00 Ac-ft 1,440

Fiscal year 1955-56: Max 5.7 Min 0.02 Mean(mgd) 1.06 Mean(cfs) 1.64 Ac-ft 1,200

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Awini ditch.
144 ISLAND OF HAWAII

Kohala ditch at Pololu, near Niulii

Location. Lat 20°10'20", long 155°44'15", on right bank of open section of ditch in 

Pololu Valley just downstream from boundary between land of Honokane and land of 

Pololu, 2.8 miles upstream from mouth of Pololu Stream, and 4 miles south of Niulii.

Records available. August 1927 to June 1956.

Gage..--Water-stage recorder. Altitude of gage is 1,100 ft (from topographic map).

Average discharge. 27 years (1928-38, 1939-56), 26.7 mgd (41.3 cfs).

Extremes. 1927-56: Maximum daily discharge, 63 mgd (98 cfs) May 1, July 17, 1952; no 

flow at times.

Remarks. Records good. Kohala ditch receives flow of Awini ditch at Honokane Gulch and 

diverts water at altitude of about 1,200 ft from Honokane and all streams west. Water 

is used for irrigation in vicinity of Kohala.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

Day

1

2

3

4

5

6

7

B

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean:

mgc

cfs

Ac-ft

July

41

36

31.5

38.5

31.5

29.5

31.5

31.5

30.5

46

36

33.5

41

36 ,

31. 5\

33.5

49

43

33.5

29.5

26

25

24

24

36

29.5

30

43

33.5

*42 

51

1,078.0

34.8

53.8

3,310

Aug.

33.5

40

41

33.5

31.5

29.5

27

31.5

36

31.5

41

33.5

27

25

31

33.5

38.5

36

33.5

26

23

22.5

26

31.5

23

32

41

27

23

0-J E

IF

955.5

3O.8

47.7

2,930

Sept.

ii

37

26

23

21.5

19.7

19.7

19.7

18.9

20.5

23

22.5

22.5

22.5

41

41

31.5

25

21.5

19.7

18.9

18.1

17.4

17.4

16.6

17.4

24.5

26

41

24

738.5

24.6

38.1

2,270

Oct.

19.7

22.5

41

46

46

46

41

41

31.5

29.5

25

*22.5

20.5

22.5

24

22.5

21.5

20.5

20.5

20.5

19.7

18.9

19.7

25

23

21.5

20.5

18.9

19.7

18, 9

isa

808.1

26.1

40.4

2,480

Nov.

18.1

17.4

17.4

17.4

17.4

16.6

1676

16.6

16.6

18.1

18.9

18.1

24

20.5

29.5

27

20.5

18.9

21.5

43

43

38.5

41

41

33.5

27

21.5

33

29.5

22 5

744.6

24.8

38.4

2,290

Dec.

20.5

18.9

18.1

17.4

16.6

16.6

16.6

16.6

16.6

*15.8

16.6

18.9

17.4

17.4

16.6

15.8

15.8

15.1

1571

56.5

35.5

19.4

23

19.7

18.1

17.4

17.4

16.6

15.8

15.8 

15.8

575.4

18.6

28.8

1,770

Jan.

15.1

15.1

22.5

17.4

15.8

15.1

15.1

16.6

M

41

31.5

26

23

21

17.4

16.6

15.8

15.8

15.8

15.8

15.1

14^4

14.4

14.4

16.6

21.5

16.6

15.1

15.1

15. 8 

15.1

589.5

19.0

29.4

1,810

Feb.

15.1

23

36

36

*24.5

18.9

17.4

16.6

21

25.5

19.7

23

22.5

18.1

33.5

26

24

43

29.5

46

20.5

25

22.5

43

29.5

31

41

5O

23

.......

810.8

28.0

43.3

2,49O

Mar.

27

25

22.5

20.5

20. 5

19.7

19.7

23.5

31.5

22.5

19.7

18.9

38.5

41

31.5

29.5

46

31.5

23

21.5

19.7

18.9

30~~ 18.1

33

23

20.5

19.7

26.5 

33

22.5

798.4

25.8

39.9

2,45O

Apr.

18.9

29.5

50

32.5

27

41

41

33.5

43

*42

41

38.5

36

31.5

29.5

31.5

33.5

27

25

23

25

31.5

7.5

2.3

2.45

878^ 2.25

18.1

19.7 

21. 5

814.00

27.1

41.9

2,500

May

41

38.5

36

43

33.5

33.5

43

43

43

43

46

41

41

41

36

29.5

36

33.5

36

38.5

31.5

27

33.5

36

36

36

29.5

.24

27 

31.5

33.5

1,121.5

36.2

56.0

3,440

June

27

41

41

41

*41

43

38.5

36

38.5

43

33.5

42

51

46

40

27

27

43

41

37.5

26

24

34

54

37

27

26

31.5

27

44

1,108.5

37.0

57.2

3,400

Calendar year 1955. Max 55 Hin O.2 Hean(mgd) 25.6 Mean(cfs) 39.6 Ac-ft 28,72O

Fiscal year 1955-56; Max 54 Hin 2.25 Mean(mgd) 27.7 Mean(cfs) 42.9 Ac-ft 31,140

Discharge measurement made on this day.
ISLAND OP HAWAII 145

Kehena ditch near Kohala

Location. Lat 20°07'25", long 155°45'05", on right bank at old Honokane weir, near head 

of West Branch of Honokanenui Gulch, 8.5 miles southeast of Kahala.

Records available. December 1917 to November 1919, April 1928 to June 1956.

Gage. Water-stage recorder and sharp-crested weirs. Altitude of gage is 3,850 ft (from 

topographic map). Prior to Apr. 26, 1928, water-stage recorder at same site at different datum.

Average discharge. 28 years (1928-56), 7.74 mgd (12.0 cfs).

Extremes. 1917-19. 1928-56: Maximum daily discharge, 54 mgd (84 cfs) Mar. 23, 1919; no 

flow at times.

Remarks. Records good except those for period of no gage-height record, which are poor. 

Intake on Honokanenui Stream 2 miles upstream from station at altitude of about 

4,200 ft. Kahua Ranch diverts small quantity of water from ditch 2 miles above station 

for watering stock. Water used for irrigation in vicinity of Hawi.

Revisions (fiscal years). WSP 740: 1930.

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

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

Mean:

mgc

cfs

Ac-ft

July

11.7

5.8

3.95

9.3

4.2

2.9

2.5

2.25

6.5

23

9.4

9.2

19.3

8.1

6.2

18.4

25

17.2

5.6

3.7

2.5

2.05 

1.85

1765

7.4

3.95

3.0

21

9.5 

23

40

311.10

10.0

15.5

955

Aug.

8.0

*12

14.5

5.3

5.0

5.5

4.5

5.4

14.7

9.2

19.4 ^T9

5.0

3.15

12.2

11.0

12.0

9.0

4.5

2.7

1.85

578~ 1.50 

8.4

3.15

12.3

19.1 

5.3

2.7 

1.65

2.7

235.40

7.59

11.7

722

Sept.

21.5

11.1

5.5

2.9

2.05

1.50

2.5

2.9

1.65

1.13

.98

.82

1.30

2.05

22.5

19.8

5.7

2.9

2.5

1.50

1.13

.98 

.82

.67

.55

1.66

10.0 

8.7

18.0 

4.9

160.17

5.34

8.26

492

Oct.

2.7

6.9

25.5

28

35

30.5

19.9

17.0

7.0

*5.4

4.7

2.7

2.05

1.65

1.30

1.13

.98

.82

.67

.67

.53

.53 

.53

.53

.53

.40

.40 

.40

.29 

29

!l9

199.19

6.43

9.95

611

Nov.

0.19

.19

.10

.10

.10

.10

.10

.10

.10

.80

.82

.67

1.50

7.4

11.9

7.9

3.15

1.65

4.7

29.5

28

21 

25.5

27.5

13.7

5.5

3.4 

13.1

8.0

3.7

220.47

7.35

11.4

677

Dec.

2.25

1.65

1.13

.67

.53

.40

.40

.29

.29

.19

.19

.29

.29

.29

.29

.19

.19

.19

.19

34.5

40

14.4 

5.0

3.15

2.05

1.50

1.13 

.98

.67

.53 

.40

114.22

3.68

5.69

351

Jan.

0.40

.40

.67

.40

.29

.29

.19

719

23.5

21

6.5

23.5

32.5

18.0

6.5

3.15

1.85

1.13

.82

.53

.53

.40 

.40

.40

1.78

3.4

2,. 05 

1.13

.82 

.67

.67

154.06

4.97

7.69

473

Feb.

1.50

14.4

21

23.5

5.9

2.9

1.50

1.83

2.25

1.50

2.05

4.3

4.2

3.05

13.0

5.5

5.2

30 <

37.5

45

24

16.6 

10.2

28

12.3

19.2

30 

40

19.7

426. O8

14.7

22.7

1,310

Mar.

6.9

4.2

2.7

2.05

1.85

1.65

T78- 1.50

10.0

4.5

2.5

2.05

9.7

24

10.3

16.1

30

9.8

3.95

2.5

2.05

2.05 

1.85

12.3

16.8

6.6

3.4 

3.4

11.9

16. 7

5.3

236.40

7.63

11.8

725

Apr.

2.5

6.9

29.5

15.7

4.7

8.0

*20.5

7.0

31

57.5

37.5

25.5

22

9.2

8.3

7.7

6.4

3.4

2.05

1.85

2.6

11.3 

7.2

3.4

2.05

2.05

1.50 

1.15

.98 

* 89

320.50

10.7

16.6

983

May

6.1

5.8

6.1

15.7

7.6

9.0

21

18.2

22.5

18.0

24

17. 1

22

18.8

10.7

4.7

6.1

5.0

7.0

8.6

5.3

3^1 

3.75

6.4

13.8

11.6

5.5 

4.5

4.8 

7.4

11.4

332.15

10.7

16.6

1,020

June

8.2

24

23

20.5

23

27

17.2

11.7

19.4

28.5

10.9

29.5

40

34

26

8.6

14.4

28.5

29

23.5

8.3

11. 0 

22

40

19.1

6.5

4^5 

7.S

6.1 

23

595.2

19.8

30.6

1,830

Calendar year 1955 : Max 51 Min 0.10 Mean(mgd) 9.39 Mean(cfs) 14.5 Ac-ft 10,510 

Fiscal year 1955-^56 : Max 45 Min 0.10 Mean(mgd) 9.03 Mean(cfs) 14.0 Ac-ft 10,150

* Discharge measurement made on this day.

Note. No gage-height record July 27 to Aug. 2; discharge estimated on basis of records for nearby stations. -oo j
146 ISLAND OP HAWAII

Walkoloa Stream near Kamuela

Location.~Lat 20°03'15", long 155°39'55", on left bank 350 ft downstream from Parker 

Ranch boundary and 2.1 miles north of Kamuela.

Drainage area. 1.0 sq ml.

Records available. May 1947 to June 1956.

Sage. Water-stage recorder and concrete control. Altitude of gage Is 3,500 ft (from 

topographic map).

Average discharge. 9 years, 4.91 mgd (7.60 cfs).

Extremes. Maximum discharge during year, 210 mgd (325 cfs) Jan. 12 (gage height, 4.05 ft) 

from rating curve extended above 10 mgd by logarithmic plotting; minimum, 0.91 mgd 

(1.41 cfs) Jan. 7, 8.

1947-56: Maximum discharge, 545 mgd (843 cfs) Jan. 11, 1949, Dec. 10, 1954 (gage 

heights, 5.47 and 5.52 ft, respectively), from rating curve extended above 10 mgd; 

minimum, that of Jan. 7, 8, 1956.

Remarks. Records good except those above 50 mgd, which are fair. 

Revisions (fiscal years).--WSP 1155: 1948(M).

Rating tables, fiscal year 1955-56 (gage height, In feet, and discharge, 

In million gallons a day)

July 1 to Nov. 24 Nov. 25 to June 30

1.2 0.88

1.3 1.52

1.4 2.4

1.5 3.4

1.7 

2.0 

2.3

6.4

13.2

24

1.26 0.91

1.3 1.17

1.4 1.96

1.5 3.1

1.8 

2.1 

2.5 

2.9

8.2

16.2

34

61

Discharge, In million gallons a day, fiscal year July 1955 to June 1956

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

31

Total

Mean:

mgd

cfs

Ac-ft

July

6.3

5.0

4.2

9.6

4.1

3.55

4.2

5.2

8.7

12.5

5.1

3.8

6.1

3.95

3.4

7.1

9.5

6.6

3.7

3.2

2.7

2.4

2.4

3.1

4.1

2.8

2.6

*5.3

3.4 

10.9

14.1

169.60

5.47

8.46

520

Aug.

5.2 

20

6.2

4.4

5.1

3.8

3.3

3.7

9.0

7.6

8.8

5.2

4.3

3.55

4.9

4.4

5.2

4.0

2.9

2.6

2.4

2.3

3.1

3.2

2.5

4.9

5.5

2.9

2.4

2. 3 

2.' 65

148.30

4.78

7.40

455

Sept.

H3.2

2.5

2.2

2.15

2.2

2.15

2.05

1.96

1.96

1.87

1.87

1.96

4.7

5.8

2.8

2.3

2.05

1.96

1.87

1.87

1.87

1.78

TT78

2.15

3.0

3.5

5.6

2.6

82.20

2.74

4.24

252

Oct.

2.2 

2.7

5.0

7.7

10.5

8.8

6.1

5.2

3.0

*2.65

2.3

2.15

2.05

1.96

1.96

1.87

1.87

1.78

1.78

1.70

1.61

1.61

1.78

1.96

1.87

1.70

1.52

1.52

1.52

1.46 

1.52

91.14

2.94

4.55

280

Nov.

1.52 

1.46

T746

1.46

1.46

1.46

1.46

1.46

1.46

1.61

1.46

1.70

2.05

1.78

1.87

1.96

1.70

1.52

2.6

10.0

7.4

5.0

9.8

12.3

4.3

2.35

2.25

5.6

2.65

X. 78

94.88

3.16

4.89

291

Dec.

1.54 

1.38

1.31

1.24

1.17

1.24

1.17

1.17

1.10

1.10

 1.13

1.24

1.38

1.24

1.10

1.04

.97

797

.97

14.7

9.7

3.25

1.78

1.70

1.62

1.38

1.31

1.17

1.17

1.10 

1.04

62.38

2.01

3.11

191

Jan.

0.97 

1.10

1.04

1.10

.97

.97

.91

1.04

18.6

9.4

2.85

22

19.7

4.8

2.05

1.70

1.46

1.38

1.24

1.17

1.17

1.17

1.10

1.10

1.54

1.62

1.31

1.17

1.17

1.10 

1.04

107.94

3.48

5.38

331

Feb.

1.04 

*2.25

5.1

7.4

2.05

1.46

1.24

2.1

7.0

3.25

1.70

1.54

1.46

1.31

2.5

2.1

1.86

28

20.5

45

11.4

9.8

5.1

6.9

3.5

3.7

6.8

29

6.3

219.36

7.56

11.7

673

Mar.

2.95 

2.15

1.78

1.62

1.54

1.38

1.38

1.54

1.78

1.54

1.38

1.49

9.6

8.3

3.55

7.1

15.3

4.1

2.15

1.70

1.62

1.54

1.46

6.1

4.2

2.15

1.70

1.70

3.95 

7.3

3.1

107 . 15

3.46

5.35

329

Apr.

1.70 

1.54

3.85

3.8

1.86

3.8

6.2

*2.9

5.1

8,1

8.1

6.4

7.2

4.5

3.9

3.8

3.2

1.96

1.70

1.62

1.78

2.6

4.0

2.95

1.86

1.62

1.54

1.46

1.38 

1 . 38

102.00

3.40

5.26

313

May

Iff

5.4

9.8

4.4

7.2

15.6

14.4

12.2

11.9

8.6

7.4

9.4

6.2

4.5

2.95

5.4

5.9

6.1

7.2

3.65

2.95

2.95

3.5

4.4

4.1

3.Z5

3.05

2.95 

4.0

4.4

190.40

6.14

9.50

584

June

5.7 

8.3

6.2

5.8

6.3

8.2

5.9

4.3

7.1

7.1

3.25

8.4

13.3

12.7

10.3

4.9

5.8

14.8

16.3

9.1

4.0

3.1

TTi

19.0

6.9

3.55

3.55

4.5

6.1 

14.4

235.95

7.86

12.2

724

Calendar year 1955: Max 86 Mln 0.97 Mean(mgd) 4.99 Mean(cfs) 7.72 Ao-ft 5,580

Fiscal year 1955-56: Max 43 Mln 0.91 Mean(mgd) 4.40 Mean(cfs) 6.81 Ac-ft 4,940

Peak discharge (base, 100 mgd).--Aug. 2 (4:30 p.m.) 118 mgd (183 cfs), 3.43 ft; Jan. 12 (11 a.m.) 

210 mgd (525 cfs), 4.05 ft; Feb. 18 (9 p.m.) 110 mgd (170 efa), 3.40 ft.___________________

* Discharge measurement made on this day.
ISLAND OF HAWAII 14' 

Waikoloa Stream at Marine Dam, near Kamuela

Location. Lat 20°02 I 45", long 155°39'55", on right bank 160 ft upstream from Marine Dam 

and 1.5 miles north of Kamuela.

Drainage area. 1.3 sq. mi.

Records available.--May 1947 to June 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 3,450 ft (from 

typographic map).

Average discharge. 9 years, 6.07 mgd (9.39 cfs).

Extremes. Maximum discharge during year, 209 mgd (323 cfs) Jan. 12 (gage height,

4.01 ft), from rating curve extended above 14 mgd by logarithmic plotting; minimum, 

0.96 mgd (1.49 cfs) Nov. 7-9, Jan. 6, 7, Feb. 2.

1947-56: Maximum discharge, 720 mgd (1,110 cfs) Dec. 10, 1954 (gage height, 

5.80 ft), from rating curve extended above 14 mgd by logarithmic plotting; minimum. 

0.65 mgd (1.01 cfs) Dec. 1, 1954.

Remarks.--Records good. Diversions above station for stock and domestic use.

Rating table, fiscal year 1955-56 (gage height, In feet, and 

discharge, In million gallons a day)

1.4

1.5

1.6

1.7

1.8

1.9

O.60

1.15

2.0

3.OS

4.5

6.4

2.0 

2.2 

2.4 

2.6 

3.0

14.5

24

36.5

Discharge, in million gallons a day, fiscal year July 1955 to June 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

26

27

28

29

3O

31

Total

Mean:

mgc

CfE

Ac-ft

July

7.7

5.4

4.5

12.0

4.2

5.45

4.3

5.6

12.5

16.3

5.8

5.85 

6.7

4.0

3.3

9.2

12.0

7.8

5.85

3.2

2.5

2.2

2.2

2.75

4.2

2.7

2.4

5.4

3.5

14.6

21

199.10

6.42

9.93

611

Aug.

6.2

29.5

8 5

5.0

5.7

3.7

5.5

3.75

11.3

9.1

11.9

6.1 

4.7

3.7

5.0

4.4

5.3

4.2

2.85

2.4

2.2

2.0

2.7

5.15

2.2

5.1

5.7

2.7

2.2

1 .82

168.52

5.44

8.42

517

Sept.

1^3

4.6

3.2

2.4

2.0

1.82

2.0

1.82

1.74

1.50

1.50

1.43 

1.45

1.50

4.5

6.2

2.6

2.0

1.74

1.50

1.43

1.43

1.43

1.36

1.36

1.66

2.7

3.25

6.0

2 3

74.50

2.48

3.84

229

Oct.

1.82

2.3

5.1

9.0

15.5

11.8

7.8

6.1

5.05

*2.5

2.2

1.82 

1.74

1.58

1.50

1.50

1.43

1.56

1.29

1.22

1.22

1.22

1.56

1.50

1.50

1.56

1.29

1.22

1.22

1.15

1.22

92.87 ^-

3.00

4.64

285

Nov.

1.15

1.15

1.15

1.10

1.10

O3" 1.05

1.03

1.03

1.22

1.10

1.22 

1.58

1.36

1.50

1.50

1.22

1.10

2.25

12.4

8.6

5.5

12.8

~5~4 17 .6

5.05

2.75

6.8

3.4 2 3

104.42

3.48

5.38

520

Dec.

1.82

1.58

1.45

1.36

1.22

1.22

1.22

1.15

1.15

1.15

*1.25

1.29 

1.50

1.29

1.15

1.10

1.10

1.03

TT03

21.5

14.6

4.7

2.3

2:2

1.82

1.58

1.45

1.36

1.22

1.15

1.10

79.0O

2.55

3.95

242

Jan.

1.10

1.10

1.10

1.10

1.03

^96

.96

1.1O

28

13.0

3.8

29. 5

6.2

2.85

2.1

1.74

1.58

1.50

1.36

1.29

1.22

1.15

1.O3

1.59

1.66

1.36

1.22

1.15

1.1O 

1.03

143.88

4.64

7.18

442

Feb.

1.05

2.4

5.8

9.5

2.5

1.50

1.22

2.55

1O.6

4.1

1.82

1.66 

1.66

1.50

3.1

2.5

2.2

39

33.5

68

16.4

13.1

6.4

9.0

4.4

4.6

9.3

47

9.1

315.04

1O.9

16.9

967

Mar.

3.9

2.6

2.1

1.74

1.66

1.5O

1.43

1.87

2.5

1.74

1.5S

1.62 

13.8

12.0

4.6

9.2

25

5.8

2.85

2.2

2.0

1.74

1.66

7.7

5.9

2.85

2.1

1.82

4.5

10.1 

4.4

144.26

4.65

7.19

445

Apr.

2.3

1.82

6.4

5.6

2.5

4.9

S.9

*3.7

6.9

12.2

11.5

8.5 

9.5

5.7

5.2

4.9

4.1

2.5

2.1

2.O

2.2

3.1

4.5

3.6

2.3

1.82

1.66

1.58

1.50

1 50

154.98

4.50

6.96

414

May

2^3

5.0

6.1

13.2

5.9

9.9

22 23.5

17.7

18.8

11.9

9.6 

12.7

8.5

6.3

3.55

6.6

7.4

7.5

9.4

4.7

3.45

3.55

4.0

5.2

5.0

3.7

3.65

5.45

4.5 

5.8

254.85

S.22

12.7

782

June

6.9

10.8

8.1

7.5

7.7

10.4

7.4

4.8

8.5

9.1

3.75

12.9 

19.6

18.4

14.1

5.8

7.2

23.5

25

13.0

5.0

5.7

9.6

50.5

10.1

4.5

4.1

5.5

7.5

21

325.55

1O.9

16.9

999

Calendar year 1955: Max 114 Mln 1.03 Mean(mgd) 6.15 Mean(cfs) 9.52 Ac-ft 6,900

Fiscal Fiscal year year 1955-56: 1955-56: Max Max 68 68 Mln Mln 0.96 0.96 Mean(mgd) Meantmgd; 5.57 5.57 Mean(cfs) Mean(cfs; 8.62 8.62 Ac-ft Ac-ft 6,250 6,250

Peak discharge (base, 100 mgd). Aug. 2 (5 p.m.) 150 mgd (232 cfs), 3.63 ft; Jan. 12 (10:30 a.m.)

209 mgd (323 cfs), 4.01 ft; Feb. 18 (9 p.m.) 136 mgd (210 cfs), 5.53 ft.

Discharge measurement made on this day
148 ISLAND OF HAWAII

Discharge measurements at points other than gaging stations

Measurements of streamflow on the Island of Hawaii made at points other than regular 

gaging stations are given In the following table. Most of these measurements were made 

during periods of base flow when streamflow Is primarily from ground-water storage. 

Measurements believed to have been made under base-flow conditions are Identified by an 

asterisk (*) to the left of the discharge figure. These measurements when correlated with 

the simultaneous discharge of a nearby stream where continuous records are available will 

give a picture of the low-flow potentiality of stream. The column headed, "Measured previously shows the fiscal years In which measurements were made at the same, or practically 

the same, site.

Discharge measurements made at points other than gaging stations on the Island of Hawaii during 

fiscal year July 1955 to June 1956

Stream

Klpi Stream.

Kapehu

Stream.

Hauani

Stream.

Do.......

Kohakohau

Stream.

Do .......

Tributary to

Kapehu

Stream.

Wailuku

River .

Lanlmaumau

Stream.

....do......

Keanuiomano

Stream.

....do......

Location

Lat 19 "44 '00", long 155 "10 '35", at

altitude 1,800 ft, In Hilo Forest

Reserve, 700 ft above confluence

with Kapehu Stream and 0.5 mile

northeast of gaging station on

Kapehu ditch, near Hilo.

Lat 19 "44 '00", long 155 "10 '30", at

altitude 1,750 ft, in Hilo Forest

Reserve, 30 ft below confluence

with Klpi Stream and 0.6 mile

northeast of gaging station on

Kapehu ditch, near Hilo.

Lat 20 "02 '40", long 155 "39 '15",

1.8 miles northeast of Kamuela.

Lat 20 "02 '20", long 155°39'05",

1.7 miles northeast of Kamuela.

Lat 20 "03 '00", long 155 "41 '00",

2 miles northwest of Kamuela.

Lat 20 "01 '45", long 155°42'05", at

Walaka, at bridge at Junction of

Kohala-Walmea and Kawaihae-Walmea

roads, 2 miles west of Kamuela

Post Office.

Measured 

previously 

(fiscal 

years)

1954-55

1954-55

Date

Apr. 5

Apr. 3

July 26

Aug. 6

Oct. 13

Aug. 3

Sept. 21

Oct. 13

Discharge

Million 

gallons 

a day

5.78

4.39

.212

.535

.679

9.76

.737

.659

Cubic feet 

per 

second

8.95

6.80

.328

.827

1.05

15.1

1.14

1.02
INDEX

Accuracy of field data and computed

results.........................

Acre-foot, definition of..............

Agencies other than Geological Survey, 

records collected by............

Alea, Halavra Stream near..............

Kalauao Stream at...................

North Halavra Stream near............

Pearl Harbor Springs near...........

Walmalu Stream near.................

Alo Stream near Huelo.................

Anahola ditch above Kaneha Reservoir, 

near Kealla.....................

Anahola ditch wasteway near Kealla....

Anahola River near Kealla.............

Awini ditch at East Honokanelkl Gulch, 

near Nlulll.....................

Computations, accuracy of results of.. 

Control, definition of................

Cooperation, record of................

Cubic foot per second, definition of..

Data, accuracy of............

explanation of.............

Dras.nage area, definition of.

4

2

5-6 

51 

47

48-50 

46 

45

119

26

25

27

142

4

1

1

2

4

2-4 

2

Soolawanui Stream near Huelo........... 124

Huelo, Alo Stream near................. 119

Halpuaena Stream near................ Ill

Honopou Stream near.................. 126

Hoolawaliilii Stream near............ 125

Hoolawanul Stream near............... 124

Kaalea Stream near................... 120

Kallua Stream near................... 123

Koolau ditch near.................... 113

Lowrle ditch near.................... 130

Manuel Luls ditch at Puohokamoa

Gulch near....................... 115

Nallllllhaele Stream near............ 122

New Hamakua ditch near............... 128

Old Hamakua ditch near............... 129

Oopuola Stream near.................. 121

Puohokamoa Stream near............... 114

Spreckels ditch near................. 112

Walakamol Stream near................ 118

Walloa ditch near.................... 127

East Honokanelkl Intake to Awlnl ditch 

at East Honokanelkl Gulch, near 

Nlulll.......................... 143

East Wallualkl Stream near Keanae..... 93

East Walluanul Stream near Keanae..... 96

Eleele, Hanapepe River near........... 15

Halku ditch at Honopou Gulch, near

Kallua.......................... 131

Halku Stream near Heela............... 62

Halpuaena diversion ditch at Kolea

Gulch, near Keanae.............. 110

Halpuaena Stream, above Spreckels

ditch, near Huelo............... Ill

at Kula pipeline Intake, near

Ollnda.........................103-108

Halawa Stream (Island of Molokal)

near Halawa..................... 74

Halawa Stream (Island of Oahu) near

Alea............................ 51

Hanalel, Hanalel River near........... 33

Hanalel River at altitude 625 ft,

near Hanalel.................... 33

Hanalel tunnel outlet near Llhue...... 32

Hanapepe River below Manuahl Stream,

near Eleele..................... 15

Hanawl Stream near Nahlku.............

Hawaii, Island of, discharge measurements of streams on............. 148

gaglng-statlon records on..........136-147

Hawaiian Electric Co. tunnel at

Walau, near Pearl City.......... 44

Heela, Halku Stream near.............. 62

lolekaa Stream mauka near........... 63

Kahaluu Stream near................. 64

Walhee Stream near.................. 65

Hilo, Kapehu ditch, near............... 140

Kapehu ditch diversion near........138-139

Wailuku River near.................. 137

Honokohau, Honokohau Stream near...... 133

Kahakuloa Stream near............... 132

Honokohau Stream near Honokohau....... 133

Honokowai ditch near Lahaina.......... 134

Honolulu, East Branch Manoa Stream

near............................ 55

Kallhi Stream near.................. 53

Moanalua Stream near................ 52

Nuuanu Stream near.................. 54

Palolo Stream near.................. 59

Pukele Stream near.................. 57

Waiomao Stream near................. 58

West Branch Manoa Stream near....... '56

Honomanu Stream near Keanae...........99-102

Honopou Stream near Huelo............. 126

Hoolawaliilii Stream near Huelo....... 125

lolekaa Stream mauka near Heeia. 63

30

120

132

86 

64 

Kallua, Haiku ditch near............... 131 -- - -- - 123

80 

47 

79 

53 

29

Ka Loko ditch near Kilauea..........

Kaaiea Stream near Huelo............

Kahakuloa Stream near Honokohau.....

Kahalawe Stream, Right Branch, near 

Kipahulu......................

Kahaluu Stream near Heeia.

Kailua Stream near Huelo.

Kalae, Waialala Springs near......

Kalauao Stream at Aiea............

Kalaupapa, Waikolu Stream near....

Kalihi Stream near Honolulu.......

Kallhiwai ditch near Kilauea......

Kamalo, Right Branch of East Pork

Kawela Stream near............... 82

Kamuela, Waikoloa Stream near.........146,147

Kapaa, Kapaa River near................ 24

North Pork Wallua River near......... 21

Wailua ditch near.................... 20

Kapaa River at Kapahi ditch intake

near Kapaa....................... 24

Kapahi ditch near Kealia............... 23

Kapaula Stream near Nahiku............. 89

Kapehu ditch near Hilo................. 140

Kapehu ditch diversion near Hilo......138-139

Kaual, Island of, discharge measurements of streams on.............. 34

gaging-station records on............ 7-33

35

36

38

37

81

7

82 

26 

25 

27 

23 

28 

22 

93 

96 

Halpuaena diversion ditch near....... 110

Honomanu Stream near................. 99-102

Koolau ditch near.................... 98

Taro patch feeder ditch at........... 97

West Kopiliula Stream near........... 92

West Wailuaiki Stream near........... 94

West Wailuanui Stream near........... 95

Kehena ditch near Kohala............... 145

Kekaha ditch at camp 1, near Waimea.... 11

Kilauea, Ka Loko ditch near............ 30

Kalihiwai ditch near................. 29

Puu Ka Ele ditch near................ 31

Kipahulu, Oheo Stream near............. 85

149

Kaukonahua ditch near Wahiawa. 

Kaukonahua Stream, North Fork, near

Wahiawa..........................

South Fork, above Wahiawa Reservoir, 

near Wahiawa.....................

near Wahiawa.......................

Kaunakakai Stream at Kaunakakal........

Kawaikoi Stream near Waimea............

Kawela Stream, Right Branch of East

Pork, near Kamalo................

Kealia, Anahola ditch near.............

Anahola ditch wasteway near..........

Anahola River near...................

Kapahi ditch near....................

Lower Anahola ditch near.............

Makaleha ditch near..................

Keanae, East Wailuaiki Stream near.....

East Wailuanui Stream near.
150 INDEX

Kipahulu, Right Branch Kahalawe

Stream near.....................

Kohala, Kehena ditch near.............

Kohala ditch at Pololu, near Niulii... 

Kokee ditch near Waimea...............

Koolau ditch, at Haipuaena, near Huelo.

at Nahiku weir, near Nahiku.........

near Keanae.........................

Kula diversion from Haipuaena Stream 

near Olinda.....................

Lahaina, Honokowai ditch near.........

Lanipuni Stream near Pelekunu.........

Lihue, Hanalei tunnel outlet near.....

North Fork Wailua River near........

North Wailua ditch near.............

South Fork Wailua River near........

Stable storm ditch near.............

Lower Anahola ditch near Kealia.......

Lowrie ditch at Honopou Gulch, near

Huelo...........................

86

145

144

9

113

90

98

109

134

78

32

19

17

16

18

28

130

Makaleha ditch near Kealia............ 22

Makapipi ditch near Nahiku............ 87

Makaweli River near Waimea............ 14

Manoa Stream, East Branch, near

Honolulu........................ 55

West Branch, near Honolulu.......... 56

Manuel Luis ditch at Puohokamoa Gulch,

near Huelo...................... 115

Maui, island of, gaging-station

records on......................85-135

Maunawili ditch near Waimanalo........ 60-61

Million gallons, use of term.......... 2

Moanalua Stream near Honolulu......... 52

Mohihi Stream at altitude 3,500 ft,

near Waimea.....................

Molokai, island of, discharge measurements of streams on.............

gaging-station records on........... 74-83

Morikone pond outlet at Pearl City.... 42

Mountain View, Waiakea Stream near.... 136

84

Nahiku, Hanawi Stream near.........

Kapaula Stream near..............

Koolau ditch near................

Makapipi ditch near..............

Waiohue Stream near..............

Nailiilihaele Stream near Huelo....

New Hamakua ditch at Honopou, near 

Huelo........................

Niulii, Awini ditch near...........

East Honokaneiki intake to Awini 

ditch near...................

Kohala ditch near.

89

90

87

91

122

128

142

143

144 

North Halawa Stream near Aiea......... 48-50

North Wailua ditch near Lihue......... 17

Nuuanu Stream below reservoir 2

wasteway, near Honolulu......... 54

Oahu, island of, discharge measurements of streams on............. 72-

gaging-station records on........... 35-71

Oheo Stream below diversion dam,

near Kipahulu.................

Old Hamakua ditch at Honopou, near 

Huelo.........................

Olinda, Haipuaena Stream near........103-

Kula diversion from Haipuaena

Stream near..................... 109

Waiakamoi Stream near..............116-117

Olowalu ditch near Olowalu............ 135

Oopuola Stream near Huelo............. 121

Order, downstream, of listing gaging

stations........................ 2

Palolo Stream near Honolulu...........

Pearl City, Hawaiian Electric Co.

tunnel at Waiau, near...........

Morikone pond outlet at.............

Pearl Harbor Springs near...........

Waiawa Stream near..................

Pearl Harbor Springs at Kalauao, near 

Aiea............................

Pearl Harbor Springs at Waiawa, near 

Pearl City......................

Pelekunu, Lanipuni Stream near........

Pelekunu Stream near................

Pelekunu Stream near Pelekunu.....

Poamoho Stream near Wahiawa.......

Publications on streamflow by

Geological Survey...........

Pukele Stream near Honolulu.......

Pukoo, Punaula Stream near........

Pulena Stream near Wailau.........

Punaluu ditch near Punaluu........

Punaluu Stream near Punaluu.......

Punaula Stream near Pukoo.........

Puohokamoa Stream above Spreckels

ditch, near Huelo...........

Puu Ka Ele ditch near Kilauea.....

Spreckels ditch at Haipuaena weir,

near Huelo.......................

Stable storm ditch near Lihue..........

Stage-discharge relation, definition

of...............................

Taro patch feeder ditch at Keanae......

Terms and abbreviations, definition of.

77

39

5

57

83

75

70

71

83

114

31

112

18

97 1-2

WSP, definition of..................... 2

Wahiawa, Kaukonahua ditch near......... 35

North Fork Kaukonahua Stream near.... 36

Poamoho Stream near.................. 39

South Fork Kaukonahua Stream near.... 37,38

Waiahole Stream at altitude 250 ft,

near Waiahole.................... 69.

Waiahole tunnel, at north portal, / 

near Waiahole.................... 6a

at Waianu, near Waiahole............. 66

Waiahole tunnel wasteway at intake 31,

near Waiahole.................... 67

Waiakamoi Stream, above reservoir at 

Kula pipeline intake, near 

Olinda..........................116-117

129 Waimanu, Waiilikahi Stream near. 

108 Waimea, Kawaikoi Stream near.

Kekaha ditch near..........

Kokee ditch near...........

Makaweli River near........

Mohihi Stream near.

near Waimea.

below Kekaha ditch intake, near 

59 Waimea........................

near Waimea.......................

44 Waiohue Stream near Nahiku..........

42 Waiomao Stream above Pukele Stream, 

41 near Honolulu.................

43 Waipahu, Waikele Stream at..........

West Kopiliula Stream near 

46 Keanae........................

West Wailuaiki Stream near Keanae... 

41 West Wailuanui Stream near Keanae... 

78 Work,division of....................

77 scope of..........................

above Wailoa ditch, near Huelo....... 118

Waiakea Stream at middle flume house,

near Mountain View............... 136

Waiakeakua Stream near Wailau.......... 76

Waialala Springs near Kalae............ 80

Waiawa Stream near Pearl City.......... 43

Waihee Stream near Heeia............... 65

Waiilikahi Stream near Waimanu......... 141

Waikele Stream at Waipahu.............. 40

Waikoloa Stream, at Marine Dam, near

Kamuela.......................... 147

near Kamuela......................... 146

Waikolu Stream below pipeline crossing,

near Kalaupapa................... 79

Wailau, Pulena Stream near............. 75

Waiakeakua Stream near............... 76

Wailoa ditch at Honopou, near

Huelo............................ 127

Wailua ditch near Kapaa................ 20

Wailua River, North Fork, at altitude

650 ft, near Lihue............... 19

North Fork, near Kapaa............... 21

South Fork, near Lihue............... 16

73 Wailuku River above Hilo Boarding 

School ditch intake, near 

Hilo............................. 137

85 Waimalu Stream near Aiea............... 45

Waimanalo, Maunawili ditch near........ 60-61

141 

7 

11 

9 

14 

8 

Waimea River near..................10,12,13

Waimea River, at altitude 890 ft,

10

12

13

91

58

40

92

94

95

1

1

U.S. GOVERNMENT PRINTING OFFICE: 1959 O -527571