HYDROLOGIC DATA FOR URBAN STUDIES IN THE AUSTIN, …pubs.usgs.gov/of/1985/0172/report.pdfJ. D. Gordon, D. L. Pate, M. E. Dorsey U.S. Geological Survey INTRODUCTION Hydrologic investigations

HYDROLOGIC DATA FOR URBAN STUDIES IN THE

AUSTIN, TEXAS, METROPOLITAN AREA, 1983

By J.D. Gordon, D.L. Pate, and M.E. Dorsey

U.S. GEOLOGICAL SURVEY Open-File Report 85-172

Prepared in cooperation with theCITY OF AUSTIN and theTEXAS DEPARTMENT OF WATER RESOURCES

Austin, Texas

1985

UNITED STATES DEPARTMENT OF THE INTERIOR

DONALD PAUL HODEL, Secretary

GEOLOGICAL SURVEY

Dallas L. Peck, Director

For additional write to:

information Copies of this report can be purchased from:

District Chief U.S. Geological Survey 649 Federal Building 300 E. Eighth Street Austin, TX 78701

Open-File Services Section Western Distribution Branch Box 25425, Federal Center Denver, CO 80225 Telephone: (303) 234-5888

CONTENTS

Page

Introduction 7Location and description of the area 8Data-collection activities 9

Preci pi tation data 9Storm data 9Runoff data 18Surface-water-quality data 18Ground-water data 21

Selected references 26Compilation of data- 27 Colorado River basin:Colorado River below Mansfield Dam, Austin, TX 28Lake Austin at Austin, TX 30Town Lake at Austin, TX 36Colorado River at Austin, TX 42Colorado River below Austin, TX 46Bull Creek at Loop 360 near Austin, TX 48

Storm of May 19-20, 1983 51Barton Creek near Camp Craft Road, Austin, TX 52Barton Creek at Loop 360, Austin, TX 54Barton Springs at Austin, TX 56Barton Creek below Barton Springs at Austin, TX 58West Bouldin Creek at Riverside Drive, Austin, TX 59

Storm of May 10, 1983 60Shoal Creek at Northwest Park, Austin, TX 61

Storm of May 10-11, 1983 62Shoal Creek at 12th Street, Austin, TX 64

Storm of May 10-11, 1983 66Boggy Creek at U.S. Highway 183, Austin, TX 68

Storm of June 4-5, 1983 71Walnut Creek at Farm Road 1325 near Austin, TX 73Walnut Creek at Dessau Road, Austin, TX 74Ferguson Branch at Springdale Road, Austin, TX 76Little Walnut Creek at Georgian Drive, Austin, TX 77Walnut Creek at Webberville Road, Austin, TX 78

Storm of August 8, 1983 80Walnut Creek at Southern Pacific Railroad Bridge, Austin, TX 82Onion Creek near Driftwood, TX 84

Storm of May 20-21, 1983 86Onion Creek at Buda, TX 88

Storm of May 20-21, 1983 90Onion Creek at U.S. Highway 183 near Austin, TX 92Bear Creek below Farm Road 1826 near Driftwood, TX 94

Storm of May 20-21, 1983 96Bear Creek at Farm Road 1626 near Manchaca, TX 98

Storm of May 20-21, 1983 99

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CONTENTS Continued

Page

Colorado River basin: Continued

Little Bear Creek at Farm Road 1626 near Manchaca, TX 101Storm of May 10, 1983 103

Slaughter Creek at Farm Road 1826 near Austin, TX 104 Slaughter Creek at Farm Road 2304 near Austin, TX 107 Boggy Creek (South) at Circle S Road, Austin, TX 108

Storm of May 10, 1983 109 Williamson Creek at Oak Hill, TX 111

Storm of May 20, 1983 114 Williamson Creek at Manchaca Road, Austin, TX 115

Storm of May 20, 1983 116 Williamson Creek at Jimmy Clay Road, Austin, TX 118

Storm of May 20, 1983 121

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ILLUSTRATIONSPage

Figure 1. Map showing locations of surface-water hydrologic- instrument installations and surface-water- quality sampling sites in the Austin urban study area 10

2. Rainfall for the stonn of May 10, 1983 inthe Austin area 11

3. Map showing the locations of the water-quality data- collection sites on Lake Austin 19

4. Map showing the locations of the water-quality data- collection sites on Town Lake 20

5. Map showing ground-water data-collection sites inTravis County 22

6. Map showing ground-water data-collection sites inHays County 23

TABLES

Table 1. Locations of rain gages in the Austin area 122. Weighted-mean precipitation factors for drainage

basins above stations in the Austin metropolitan area 15

3. Daily and monthly rainfall summary for gages north ofthe Colorado River 123

4. Daily and monthly rainfall summary for gages south ofof the Colorado River 129

5. Storm rainfall-runoff data, 1983 water year 1356. Rainfall and runoff data for selected continuous-

record gaging stations in the Austin urban study area, 1983 water year 139

7. Peak discharges associated with water-quality samplescollected during storms 140

8. Records of wells, test holes, and springs in the Austin urban study area,Travis County 143 Hays County 145

9. Water-quality data from wells in the Austin urban study area, 1983Travi s County 146 Hays County 150

10. Monthly water-level measurements of observation wellsin the Austin urban study area, 1983 water year 153

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METRIC CONVERSIONS

The inch-pound units of measurements used in this report may be con verted to metric units by using the following conversion factors:

Multiply

inch

foot

mile

square mile (mi 2)

cubic foot per second

By

25.4

.3048

1.609

2.590

.02832

To obtain

mil li meter

meter

kilometer

square kilometer

cubic meter per second(ft 3/s

foot per mile (ft/mi)

acre-foot

.189

1233

.001233

meter per kilometer

cubic meter

cubic hectometer

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HYDROLOGIC DATA FOR URBAN STUDIES IN THE

AUSTIN, TEXAS, METROPOLITAN AREA

1983

By

J. D. Gordon, D. L. Pate, M. E. Dorsey U.S. Geological Survey

INTRODUCTION

Hydrologic investigations of urban watersheds in Texas were begun by the U.S. Geological Survey in 1954. Studies are now in progress in Austin, and Houston. Studies have been completed in the Dallas, Fort Worth, and San Antonio areas.

The Geological Survey, in cooperation with the Texas Department of Water Reources, began hydrologic studies in the Austin urban area in 1954. In cooperation with the city of Austin, the program was expanded in 1975 to include additional streamflow and rainfall gaging stations, and the collection of surface water-quality data. In 1978, the program was expanded to include a ground-water resources study of the South Austin metropolitan area in the Balcones Fault Zone.

The objectives of the Austin urban hydrology study are as follows:

1. To determine, on the basis of historical data and hydrologic analyses, the magnitude and frequency of flood peaks and flood volume.

2. To determine the effect of urban development on flood peaks and volume.

3. To determine the variations in water quality during different seasons and flow conditions in representative watersheds under various types of urban development.

4. To quantitatively appraise the ground-water resources along the Balcones Fault Zone, the effect of urbanization on the quality and quantity of recharge and discharge, and the extent of contamination in the Edwards aquifer that is in hydrologic circulation with Barton Springs.

This report presents the basic hydrologic data collected in the Austin urban area for the 1983 water year (Oct. 1, 1982 to Sept. 30, 1983).

Additional explanations of terms related to streamflow, water quality, and other hydrologic data used in this report are defined in the U.S. Geolo gical Survey annual report Water Resources Data for Texas, TX-83-3, 1983.

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LOCATION AND DESCRIPTION OF THE AREA

The Austin study area is about 80 miles northeast of San Antonio and about 160 miles northwest of Houston. The study area extends in an eastward direction from the Hill Country at the eastern edge of the Edwards Plateau across the Balcones Fault Escarpment to the Blackland Prairie of Texas. The land surface decreases in altitude from about 1,100 feet above mean sea level in the northwest to about 420 feet above mean sea level in the southeast.

Slopes generally range from 2 to 15 percent; slopes greater than 5 percent are present along the eastern edge of the Edwards Plateau, average about 5 percent within the Balcones Escarpment, and are less than 5 percent east of the escarpment and along the flood plain and alluvial terraces of the Colorado River and its tributaries.

Soils overlying the hard limestone in the western half of the study area are in general poorly developed thin calcareous clays, clay loams, and stony clays. Bedrock is locally exposed. Soils on the soft limestones and shales of the Balcones Fault Zone are generally dark brown calcareous clays, clay loams, or silty clay loams 6 inches or more thick. Soils on the shaly forma tion in the eastern part of the area are dark gray to olive calcareous clays and clay loams, 12 inches or more thick. Soils on the flood plain and ter races of the Colorado River and its tributaries are dark gray to red-brown, calcareous to noncalcareous, sandy loams, silty clay loams, clay loams, and gravelly sands 12 inches or more thick.

Detailed descriptions of the soils in the Austin urban study area can be found in Soil Survey of Travis County, U.S. Dept. of Agriculture, 1974. Additional geologic information of the Austin urban study area can be found in publications by the University of Texas Bureau of Economic Geology. A list of some of these geologic reports is given in the section "Selected references".

The major streams in the study area are Onion Creek, Barton Creek, Walnut Creek, Bull Creek, Boggy Creek, Shoal Creek, Williamson Creek, Slaughter Creek, Bear Creek, and Waller Creek. All streams in the area are within the Colorado River basin. Throughout the year, low flow for some of the smaller streams in the predominantly urban areas is partly sustained by return flow from indus trial and residential users; during the summer months the low flow is partly sustained by drainage from municipal and private swimming pools.

The climate of the Austin urban area is characterized by short mild winters, long moderately hot summers, moderately high humidity, and prevailing southerly winds. Records of the National Weather Service show that the mean annual temperature (based on the period 1941-70) is 70.6°F; the mean maximum temper ature for July is 95°F; and the mean minimum temperature for January is 41°F. The average growing season is about 270 days.

The average rainfall (based on the period 1951-80) is 31.50 inches and is generally well distributed throughout the year; however, individual storms may cause flooding in any season. The major storms usually occur during the months of April-May and September-October.

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DATA COLLECTION ACTIVITIES

The drainage basins and locations of hydrologic-instrument installations and surface-water-quality sampling sites in the Austin urban study area are shown on figure 1. The locations of data-collection sites for Lake Austin, Town Lake, and the ground-water are shown on figures 2-6.

Precipitation Data

Precipitation data are based on 25 recording rain gages. The gages are distributed throughout the drainage basins to measure total precipitation and to define rainfall intensities. The locations of these rain gages are given in table 1 and shown on figure 1.

Precipitation at individual gages and weighted precipitation in each basin is given in the section "Compilation of data." Weighted-mean precipi tation factors are shown in table 2. Weighted mean precipitation for a study area is determined by the Thiessen method described by Linsley, Kohler, and Paulhus (1949). For example, the weighted-mean precipitation for the drainage basin upstream from the Bull Creek at Loop 360 streamflow-gaging station could be computed as follows: Multiply the recorded precipitation at rain-gage1-BUL by 0.57 and to that value, add the recorded precipitation at rain-gage2-BUL multiplied by 0.43.

Rainfall for the current year was unevenly distributed over the area. Individual station totals ranged from 36.87 inches at gage 2-SHL in the Shoal Creek basin to 46.81 inches at gage 2-WMS in the Williamson Creek basin. The mean water-year total of all rain gages is 41.65 inches as compared with the 30-year average (1951-80) of 31.50 inches at the Austin Municipal Airport rain gage which is operated by the National Weather Service. Daily and monthly precipitation data at individual gages in the study area are given in tables 3 and 4 at the end of this report.

Storm Data

Few storms of wide distubution produced rainfall totals of over 2 inches during the year. The most significant storm of the year occurred on May 19-21. This two-day storm produced rainfall totals ranging from 0.37 inche to 3.31 inches. Wide spread showers also fell on the entire study area on August 8. This storm produced rainfall totals ranging from 0.11 inche to 3.35 inches.

Storms of May 10, 19 and 21, June 4-5, and August 8 were used for analysis. Storms were selected for analyses based on rainfall distribution, discharge magnitude, and quality of recorded data. A summary of storm rainfall-runoff data is shown in table 5 at the end of this report. The areal distribution of rainfall totals for the May 10 storm for the entire Austin area is shown in figure 2.

A report entitled "Techniques for estimating the magnitude and frequency of floods in the Austin, Texas, metropolitan area" is currently (1984) being written This report presents an analysis of all strom data gathered in the Austin area along with equations for estimating the magnitude and frequency of floods in this area.

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Table 1.--Locations of rain gages in the Austin area

Rain gage Location

1-BUL Lat 30°25'23", long 97°48'41", at Jack Rainer residence, 1.1 miles west of the intersection of Spicewood Springs Road and gravel dirt road, which starts 800 ft north of Oak Grove Church on Spicewood Springs Road. Elevation, 775 ft (approximate).

2-BUL Lat 30°23'51", long 97°46'42", on Dr. Lloyd A. Doggett property, 200 ft north of the center!ine of Spicewood Springs Road at a point 600 ft northwest of the intersection of Spicewood Springs and United iff Roads (the northernmost intersection where two roads cross twice). Elevation, 650 ft (approximate).

1-BAR Lat 30°14'37", long 98°01'17", 25 ft north of centerline ofFitzhugh Road at Mr. Ben Crumley's residence, 4.9 miles west of the intersection of U.S. Hwy. 290 and Fitzhugh Road. Elevation, 1,058 ft (approximate).

2-BAR Lat 30°16'24", long 97 050'55", at Lost Creek Country Club, 150 ft northwest of maintenance building, 1.7 miles southwest of inter section of Lost Creek Blvd. and Loop 360. Elevation, 638 ft (approximate).

3-BAR Lat 30°17'46", long 97°55'31", at Barton Creek at Hwy. 71 streamflow gaging station, 5.8 miles northwest of Oak Hill. Elevation, 781 ft (approximate).

1-BOL Lat 30°14'32", long 97°46'20", at rear of Mr. Morris Kieke's prop erty at 2509 Thorton Road, 0.4 mi southwest of the intersection of Oltorf Street and Thorton Road. Elevation, 570 ft (approxi mate).

1-SHL Lat 30°23'09", long 97°43'55", at Balcones Research Center about 150 ft west and 350 ft south of Civil Engineering Structures Research building, 5,000 ft northwest of intersection at U.S. Hwy. 183 and Farm Road 1352. Elevation, 763 ft (approximate).

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Table 1.--Locations of rain gages in the Austin area Continued

Rain gage Location

2-SHL Lat 30°20'50", long 97°44'41", at Shoal Creek at Northwest Park streamflow gaging station, 400 ft upstream from Shoal Creek Blvd. bridge, 0.5 mile west of the intersection of Burnet Road and Justin Lane. Elevation, 671 ft (approximate).

1-BOG Lat 30°17'31", long 97 041'54", 50 ft behind National WeatherService building at 3724 Manor Road. Elevation, 630 ft (approxi mate).

1-WLN Lat 30°25'18", long 97°43'42", at Billie Harrel's residence, 200 ft east of Dorsett Road, 0.5 mile north of the intersection of Duval and Dorsett Roads. Elevation, 835 ft (approximate).

2-WLN Lat 30°25'48", long 97°40'49", at Turbine West Supply Company at the intersection of Hydro and Turbine Streets, 0.7 mile northwest of the Intersection of Interstate Highway 35 and Howard Lane. Elevation, 790 ft (approximate).

3-WLN Lat 30°20'34", long 97°39'52", at Ferguson Lane at Loredo Manu facturing Company, 0.9 mile northwest at the intersection of Ferguson Lane and Springdale Road. Elevation, 595 ft (approxi mate).

4-WLN Lat 30°21'39", long 97°4r49", at Mollie Barrington School on Cooper Drive, 0.1 mile east of the intersection of Lamar Blvd. and Cooper Drive. Elevation, 690 ft (approximate).

5-WLN Lat 30°20'09", long 97°41'03", at entrance road to the Showtown Drive-In Theater, 0.25 mile north of the intersection of Cameron Road and U.S. Hwy. 183. Elevation, 664 ft (approximate).

1-ON Lat 30°08'57", long 98°03"23", at Bullard Ranch, 2.7 miles north west of Driftwood on FM 150, on the north side of road in fenceline. Elevation, 1,060 ft (approximate).

2-ON Lat 30°03'56", long 97°56'38", at Mrs. Hoskins 1 Ranch, 5.3 miles southeast of Driftwood and 3.0 miles northeast of junction of FM 150 and FM 3237 and 2.5 miles south of Farm Road 967. Elevation, 885 ft (approximate).

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Table 1. Locations of rain gages in the Austin area Continued

Rain gage Location

1-BER Lat 30011'08", long 97°58'11", at Ms. Guyn's residence on NuttyBrown Road, 1.6 mile south of U.S. Hwy. 290. Gage located left of driveway to house. Elevation, 1,067 ft (approximate).

2-BER Lat 30°09'17", long 97°54'20", at Spiller Ranch, 4.6 miles north west of the Marbridge School and FM 1626. Gage location on right of ranch road just before where ranch barns are located. Eleva tion, 855 ft (approximate).

1-LBR Lat 30°06'01", long 97°55'22", approximately 300 ft northwest of main ranch house at the Rutherford Ranch on FM 967, 4.8 miles west of Buda. Elevation, 875 ft (approximate).

1-SLA Lat 30°13'10", long 97°56'09", at the entrance of Mrs. 0. D.Miller's property on Derecho Road, 0.8 mile south of the inter section Derecho Road and U.S. Hwy. 290. Elevation, 1,055 ft (approximate).

2-SLA Lat 37°10'34", long 97°52'06", at the entrance of the Circle CRanch on Wyldwood Road, 0.8 mile from the intersection of Wyldwood Road and Brodie Lane, and 5.2 miles southwest of the intersec tion of Brodie Lane and U.S. Hwy. 290. Elevation, 773 ft (approxi mate).

1-BGS Lat 30°iri8", long 97°48'26", at the Brown School about 50 ftsouth and 200 ft west of the administration building and 20 ft of the fence line, about 3,000 ft northwest of the intersection of Manchaca Road and Dittmar Lane. Elevation, 725 ft (approximate).

1-WMS Lat 30°13'42", long 97°52'00", at the entrance of Mr. Welty E. McCullough's property at 7101 Convict Hill Road, Oak Hill, 0.4 mile south of the intersection of Convict Hill Road and U.S. Hwy. 290. Elevation, 835 ft (approximate).

2-WMS Lat 30°12'25" long 97°48'01", at the rear of Mr. Wilson's property at 1809 Stanley Avenue, 0.3 mile east of the intersection of Berkeley Avenue and Manchaca Road. Elevation, 700 ft (approxi mate).

3-WMS Lat 30°14'48", long 97°53'14", at entrance to Country Aire mobile home park on Hwy. 71, approximately 1.0 mile northwest of the intersection of U.S. Hwy. 290 and State Hwy. 71 near Oak Hill. Elevation, 890 ft (approximate).

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Table 2.--Weighted-mean precipitation factors for drainage basins above stations in the Austin metropolitan area

Station number

08154700

08155260

08155300

08155550

08156700

08156800

08158050

08158100

08158200

08158300

08158380

Station name

(abbreviated)

Bull Creek at Loop 360

Barton Creek near Camp Crest Road

Barton Creek at Loop 360

West Bouldin Creek at Riverside Drive

Shoal Creek at Northwest Park

Shoal Creek at 12th Street

Boggy Creek at U.S. Highway 183

Walnut Creek at Farm Road 1325

Walnut Creek at Dessau Road

Ferguson Branch at Springdale Road

Little Walnut Creek at Georgian Drive

Rain gage V

1-BUL 2-BUL

1-BAR 2-BAR 3-BAR

1-BAR 2-BAR 3-BAR

1-BOL

1-SHL 2-SHL

1-SHL 2-SHL

1-BOG

1-WLN

1-WLN 2-WLN

3-WLN

1-SHL 4-WLN

Weighted-mean precipitation factor 2_/

0.57 .43

.63

.16

.21

.59

.15

.26

1.00

.45

.55

.24

.76

1.00

1.00

.51

.49

1.00

.36

.64

See foot notes at end of table.

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Table 2.--Weighted-mean precipitation factors for drainage basins above stations in the Austin metropolitan area Continued

Station number

08158600

08158700

0815800

08158810

08158820

08158825

08158840

08158860

08158880

08158920

08158930

Station name

(abbreviated)

Walnut Creek at Webberville Road

Onion Creek near Driftwood

Onion Creek at Buda

Bear Creek below Farm Road 1826

Bear Creek at Farm Road 1626

Little Bear Creek at Farm Road 1626

Slaughter Creek at Farm Road 1826

Slaughter Creek at Farm Road 2304

Boggy Creek (South) at Circle S Road

Williamson Creek at Oak Hill

Williamson Creek at Manchaca Road

Rain gage I/

1-WLN 2-WLN 3-WLN 4-WLN 5-WLN

1-ON

1-ON 2-ON

1-BER

1-BER 2-BER

1-LBR

1-SLA

1-SLA 2-SLA

1-BGS

1-WMS 3-WMS

1-WMS 2-WMS 3-WMS

Weighted-mean precipitation factor 2/

0.25 .21 .28 .15 .11

1.00

.73

.27

1.00

.66

.34

1.00

1.00

.48

.52

1.00

.16

.84

.46

.25

.29

See footnotes at end of table.

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Table 2. Weighted-mean precipitation factors for drainage basins above stations in the Austin metropolitan area Continued

Station number

Station name

(abbreviated)

Rain gage I/

Weighted-'nean precipitation factor 21

08158970 Williamson Creek at Jimmy Clay Road

1-WMS2-WMS3-WMS

0.31 .49 .20

JY Rain gage designations are: BUL-Bull Creek; BAR-Barton Creek; BOL-Bouldin Creek; SHL- Shoal Creek; BOG-Boggy Creek; WLN-Walnut Creek; ON-Onion Creek; BER-Bear Creek; LBR- Little Bear Creek; StA-Slaughter Creek; BGS-Boggy Creek (South); and WMS-Williamson Creek. See locations of rain gages on figure 1.

2J See section on "Precipitation Data" for explanation of use of weighted-mean preci pitation factors

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Runoff Data

Runoff data are based on discharge measurements and stage records at 13 continuous-record streamflow stations and 11 flood-hydrograph partial-record streamflow gaging stations. Streamflow data for continuous-record gaging stations, and for flood-hydrograph partial-record stations for the 1983 water year are presented in downstream order in the section "Compilation of data."

Rainfall and runoff for the 1983 water year for the continous-record gaging stations in the Austin urban study area are summarized in table 6 at the end of this report. Runoff varied from 0.70 inch for the Onion Creek at Buda gage, to 7.25 inches for the Boggy Creek at Highway 183 gage, which was 2 percent and 19 percent of the basins annual weighted-mean rainfall, respectively. Detailed storm rainfall and runoff records for each gaging station are shown in the section "Compilation of data."

Surface-Water-Quality Data

Water-quality data were collected at 20 streamflow locations during the 1983 water year. The locations of the streamflow water-quality data-collection sites are shown on figure 1. Water-quality samples are collected and analyzed during various flow and seasonal conditions so that the variations in the water quality may be documented for future analysis. Five of these water-quality data- collection sites are equipped with automated samplers that collect discrete samples during storms. These five automated samplers are located at the gaging stations; Barton Creek at Loop 360, Shoal Creek at 12th Street, Boggy Creek at Highway 183, Bull Creek at Loop 360, and Williamson Creek at Oak Hill. The peak discharges associated with the water-quality samples collected during storms at all the gaging stations are shown in table 7.

Analyses for these sites include nutrients (ammonia, nitrogen, organic nitrogen, nitrite nitrogen, and phosphorus), physical organics and inorganics (specific conductance, pH, temperature, color, turbidity, dissolved oxygen, suspended and dissolved solids, biochemical oxygen demand, and total organic carbon), indicator bacteria (total coliform, fecal coliform, and fecal strepto cocci), and inorganic-chemical constituents (calcium, magnesium, sodium, potas sium, alkalinity, sulfate, chloride, fluoride, and silica). Some years, analyses are also done for 12 selected trace elements (arsenic, barium, cadmium, chromium, copper, iron, lead, nanganese, mercury, selenium, silver, and zinc), 26 insecticides and herbicides, and radiochemical analyses.

Beginning in 1984, a report will be prepared that will include water-quality data for the five sites equipped with automatic samplers. The water-quality characteristics for those five watersheds will be determined and interpretations relating water-quality characteristics with land use will be made.

Water-quality data were also collected at eight sites on Lake Austin and at 11 sites on Town Lake. The locations of these sites are shown on figures 3 and 4 respectively, and the analyses of these samples are given in the "Compi lation of data" section in this report.

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Ground-Water Data

Ground-water data for the Austin urban study area consist of well and spring inventories, water-quality sampling, and water-level measurements. These data were collected from 1978 to 1983, when all ground-water collection activities were discontinued. The locations of all these ground-water sites in Travis and Hays Counties are shown in figures 5 and 6 respectively. The descriptions and characteristics of the wells and springs inventoried by the U.S. Geological Survey and water-level measurements are presented in table 8 at the end of this report. Water-quality data collected from 19 wells in Travis County and 11 wells in Hays County are presented in table 9 at the end of this report. Analyses for the ground-water samples include all the consti tuents analyzed for the surface-water samples except color, turbidity, dissolved oxygen, biochemical oxygen demand, suspended solids and total organic carbon. Monthly water-level measurements made at 24 observation wells during the 1983 water year are presented in table 10 at the the end of this report. Other ground-water data for Travis and Hays Counties are in reports by Brune (1983) and DeCook (1960).

The data are listed according to a well-numbering system which is used throughout the State, and which was developed by the Texas Department of Water Resources. The well-numbering system consists of a two-letter county- designation prefix plus a seven-digit well number. The two-letter prefix for Travis County is YD, and the prefix for Hays County is LR. Each one-degree quadrangle in the State is given a number consisting of two digits from 01 through 89. These are the first two digits of the well number. Each 1-degree quadrangle is divided into 7-1/2-minute quadrangles which are given two-digit numbers from 01 through 64. These are the third and fourth digits of the well number. Each 7-1/2-minute quadrangle is divided into 2-1/2-minute quadrangles which are given a single-digit number from 1 through 9. This is the fifth digit of the well number. Each well or spring located within a 2-1/2-minute quadrangle is given a two-digit number beginning with 01, according to the order in which it was inventoried. These are the last two digits of the numbering system.

Only the last three digits of the we11-numbering system are shown at each of the ground-water data-collection sites on figures 5 and 6; the second two digits are shown in or near the northwest corner of each 7-1/2-minute quadrangle; and the first two digits are shown by the large block numbers 57, 58, 67, or 68.

The ground-water portion of this urban-hydrology project is composed of a study of that part of the Edwards aquifer between the Colorado River and the city of Kyle. Cold and Deep Eddy Springs discharge a small portion of the aquifer, and Barton Springs discharges the remainder of the aquifer. The Edwards aquifer in this area is composed of the Edwards Limestone and George town Limestone. In order to appraise the quantity and quality of the water in this portion of the Edwards aquifer, the inflow (recharge) to the aquifer and outflow (springflow and pumpage) from the aquifer must be defined.

-21-

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30°07'30"

EXPLANATION

WATER LEVEL MEASUREMENT

® WATER QUALITY ANALYSES

WATER LEVELS AND WATER QUALITY AVAILABLE

97°52'30"

1234 MILES

Base from Texas Department of Highways and Public Transportation General Highway Map

Figure 6.-Qround-water data-collection sites in Hays County

-23-

feet of pumpage is composed of domestic usage (860 acre-feet) and livestock usage (140 acre-feet). The estimated total discharge as springflow from the aquifer was 49,700 acre-feet, of which about 46,800 acre-feet was from Barton Springs and the remaining 2,900 acre-feet was from Cold and Deep Eddy Springs.

The majority of the recharge to the aquifer occurs through faults asso ciated with the Balcones Fault Zone. These faults cross several creeks south west of Austin, and some of the flow in these creeks enters the Edwards aquifer through these faults. The six major creeks that provide the majority of the recharge are Barton, Williamson, Slaughter, Bear, Little Bear, and Onion Creeks.

Except for Little Bear Creek, studies were conducted on these creeks to determine the quantity and location of flow losses. From this study, the two points on each creek that make up the upstream and downstream border of the flow-loss zones were determined, and thus the "recharge zone" was identified. The locations, descriptions, and data for the flow-loss study are given in the report by Slade and others (1982).

In 1978, the Geological Survey and Texas Department of Water Resources began a cooperative study of the Edwards aquifer between the cities of Kyle and Belton. Belton is about 60 miles north of Austin. A report presenting the hydrologic and geologic framework of the Edwards aquifer within that study area is in preparation (Baker, E. T., and others, U.S. Geological Survey, written commun., 1984). That report presents geologic sections as well as structure and thickness maps of the aquifer. Also represented in the report are basic hydrologic findings such as the extent of water use, up to date position of water altitudes in the subsurface, and changes in those levels, the quality of water from the Edwards throughout the aquifer, and interrelation ships of streamflow with the aquifer. A report concerning the hydraulic properties of that part of the Edwards aquifer north of the Colorado River was began in 1983 (Slade, R. M. Jr., and Boettner, W. L., U.S. Geological Survey, written commun., 1984). A computer model that simulates the flow of the aqui fer will be presented in the report. The report should be completed near the end of 1984.

Three reports from the ground water part of the Austin urban-hydrology program are currently being prepared or have been completed. The first report presents the results of an intensified water-quality sampling program conducted on Barton Springs and associated Edwards aquifer by the Geological Survey from August 1981 through September 1982. Data collected were used to describe the effects of storm runoff on ground-water quality of the Edwards aquifer (Andrews and others, 1984).

The second report from the ground-water program presents the hydrogeologic frame work of the Edwards aquifer (Slade, R. M. and others, U.S. Geological Survey, written commun., 1984). Information concerning recharge, discharge, water levels, storage, and water movement is presented in the report. Also presented are water-quality data and information for recharge, ground water, and Barton Springs.

-24-

The third report concerns the hydraulic properties of the aquifer (Slade, R. M. Jr., and others, U.S. Geological Survey, written commun. 1984). Synthe sis and analysis of the hydraulic properties of the aquifer were performed using a computer simulation model of the system. Simulations of present and future water levels in the aquifer are presented in the report, which will conclude the Geological Survey study of Barton Springs and associated Edwards aquifer.

-25-

SELECTED REFERENCES

Andrews, F. L., Schertz, T. L., Slade, R. M., Jr., and Rawson, Jack, 1984,Effects of storm-water runoff on water quality of the Edwards aquifer near Austin, Texas: U.S. Geological Survey Water-Resources Investigations Report 84-4124, 33 p. (in press).

Rrune, Gunnar, and Duffin, G. L., 1983, Occurrence, availability, and quality of ground water in Travis County, Texas: Texas Department of Water Resources Report 276, 219 p.

De Cook, K. J., 1960, Geology and ground-water resources of Hays County, Texas: Texas Board of Water Engineers Bulletin 6004, 167 p.

Garner, L. E. and Young, K. P., 1976, Environmental geology of the Austinarea: An aid to urban planning: University of Texas at Austin, Bureau of Economic Geology, Report of Investigations 86, 39 p.

Linsley, R. K., Kohler, M. A., and Paulhus, J. L. H., 1949, Applied hydrology: McGraw-Hill Book Company, Inc., New York, 1949.

Rodda, P. V., Garner, L. E., and Dawe, G. L., 1979, Geologic quadrangle map No. 38: Austin west, Travis County, Texas: University of Texas at Austin, Bureau of Economic Geology.

Slade, R. M., Jr., Gaylord, J. L., Dorsey, M. E., Mitchell, R. N., and Gordon, J. G., 1982, Hydrologic data for urban studies in the Austin, Texas, metropolitan area, 1980: U.S. Geological Survey open-file report 82-506.

U.S. Department of Agriculture, 1974, Soil survey of Travis County, Texas: U.S, Department of Agriculture, Soil Conservation Service, 123 p.

U.S. Department of Commerce, National Oceanic and Atmospheric Administration Environmental Data Service, 1973, Monthly normals of temperature, preci pitation, and heating and cooling degree days, 1941-70, Texas: Clima- matography of the United States, no. 81 (by State).

U.S. Geological Survey, 1983, Water resources data for Texas, Volume 3: U.S. Geological Survey Water-Data Report, TX-83-3.

University of Texas at Austin: Bureau of Economic Geology, 1974, Geologic atlas of Texas: Austin sheet, scale 1:250,000.

-26-

COMPILATION OF DATA

-27-

COLORADO RIVER BASIN

08154510 COLORADO RIVER BELOW MANSFIELD DAM, AUSTIN, TX

LOCATION. Lat 30*23'30", long 97*54'28", Travis County, Hydrologic Unit 12090205, at the downstream side of Mansfield Dan, 12.9 ni northwest of the State Capitol at Austin, and at alie 318.0.

DRAINAGE AREA. 38,755 mi*, approximately, of which 11,403 ni 1 probably is noncontributing.

WATER-DISCHARGE RECORDS

PERIOD OF RECORD. October 1974 to current year.

GAGE. None. Daily discharge record is based on daily releases fron Lake Travis.

REMARKS. Water-discharge records fair.

COOPERATION. All records of releases were furnished by the Lower Colorado River Authority.

AVERAGE DISCHARGE. 9 years 1,585 ft»/s (1,148,000 acre-ft/yr).

EXTREMES FOR PERIOD OF RECORD.--Maxinum daily discharge, 25,300 ft'/s Apr. 17-19, 1977; no flow at times.

EXTREMES FOR CURRENT YEAR. Maximum daily discharge, 2,440 ft'/s Sept. 2; no flow at times.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1982 TO SEPTEMBER 1983MEAN VALUES

DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP

12345

6789

10

1112131415

1617181920

2122232425

262728293031

TOTALMEANMAXMINAC-FT

CAL YRWTR YR

912765381554136

.00

.00

.00

.00

.00

.00190

.00

.00569

.00

.00

.00.00.00

.00

.00

.00

.00134

411.00.00.00.00.00

4052.00131912.00

8040

.00

.00

.00

.00

.00

.00

.00

.00137

.00

.0080

134.00

127

.0083

.00

.00191

.00

.00406481

.00

.00

.00

.00163236

983852

.0075

.00

.00320

.00.00.00

.00

.00

.00

.00269

.00

.00

.00

.00198

.00763

.00

.00

.00

.00

.00

.00

.00

.00.00

2038.00 3460.0067.9

481.00

4040

1 982 TOTAL 4769801983 TOTAL 228365

112983.00

6860

.00

.00.00.00.00

.00

.00.00.00.00

.00

.00

.00381

.00

.00

.00

.00

.00

.00

.00

.00

.00.00.00

381.00.00.00.00.00

762.0024.6

381.00

1510

.00 MEAN 1307

.00 MEAN 626

.00

.00.00.00.00

.00

.00

.00

.00574

.00

.00

.00

.00.00

.00

.00

.00

.00

.00

.00

.00

.00.00.00

.00.00.00

574.0020.5

574.00

1140

.00

.00

.00100

.00

.00340237279528

374569384395387

140881409412430

426431158

.00.00

.00.00.00.00.00.00

6880.00222881.00

13650

MAX 3620 MINMAX 2440 MIN

323 1470329 142032T 1300328 1160298 1120

380 965315 925

1880 10801010 967

321 864

615 1030618 1290277 1030437 930719 961

61 3 1 040561 981607 781475 870557 433

430 .00403 195801 966782 1060

1 040 1 040

1050 10501100 10701090 11701 1 30 1 1 701170 1120 1210

19980 30668.00666 989

1880 1470277 .00

39630 60830

.00 AC-FT 946100

.00 AC-FT 453000

12501390148016301040

14601680166015401810

1600172019801530717

14601470160014401500

15301680179018001460

15901970164015501690 -

4665715551980

71792540

19201760164017101780

16901720217018601850

18402080179017701650

.0015801180987966

11001130947922

1490

790756747932864752

42373.0013672170

.0084050

1100726868

10801790

1620724

.00851735

572.00.00.00

62

618486499198198

561469

113016401520

156014801890166016401770

27447.00885

1890.00

54440

17502440184019201760

18202290199021101610

15701790170011801180

14201430122016601120

676671665794888

7901060147013501310 -

4347414492440

66586230

-28-


08154510 COLORADO RIVER BELOW MANSFIELD DAM, AUSTIN, TX Continued

WATER-QUALITY RECORDS

PERIOD OF RECORD. Chemical and biochemical analyses: June 1980 to current year.

WATER QUALITY DATA, WATER YEAR OCTOBER 1982 TO SEPTEMBER 1983

DATE

JUN28...

AUG23...

SPE CIFICCON- PH DUCT- (STAND- TEMPER-

TIME ANCE ARD ATURE (UMHOS) UNITS) (DEC C)

OXYGEN, OXYGEN

0935

1525

DATE

JUN28...

AUG23...

HARD NESS,

NONCAR- BONATE (MG/L CAC03)

66

58

CALCIUM DIS SOLVED (MG/L AS CA)

46

43

577

580

MAGNE SIUM, DIS SOLVED (MG/L AS MG)

22

22

7.8

7.7

SODIUM, DIS SOLVED (MG/L AS NA)

37

36

15.5

17.5

SODIUMAD

SORP TION

RATIO

1.2

1.1

DIS- DEMAND, SOLVED BIO- HARD-

JEN, (PER- CHEM- NESS :S- CENT ICAL, (MG/L -VED SATUR- 5 DAY ASI/L) ATION) (MG/L) CAC03)

6.4

4.4

POTASSIUM,DIS

SOLVED(MG/LAS K)

3.8

4.1

65

47

ALKALINITYFIELD(MG/LASCAC03)

140

140

.0

.1

SULFATEDISSOLVED(MG/L

AS S04)

46

47

210

200

CHLORIDE,DISSOLVED(MG/LAS CL)

69

69

DATE

JUN28...

AUG23...

FLUO-RIDE,DIS

SOLVED(MG/LAS F)

.20

.30

SILICA,DISSOLVED(MG/LAS

SI02)

7.3

7.4

SOLIDS,SUM OFCONSTITUENTS,

DISSOLVED(MG/L)

315

313

NITROGEN,

NITRITETOTAL(MG/LAS N)

<.020

<.020

NITROGEN,

N02+N03TOTAL(MG/LAS N)

.20

.20

NITROGEN,

AMMONIATOTAL(MG/LAS N)

<.060

<.010

NITROGEN, AMMONIA +ORGANICTOTAL(MG/LAS N)

.60

.60

PHOSPHORUS,TOTAL(MG/LAS P)

.020

.010

-29-


08154900 LAKE AUSTIN AT AUSTIN, TX

LOCATION. Lat 30°18'53", long 97°47 1 10", Travis County, Hydrologlc Unit 12090205, at city of Austin Waterplant No. 2 and 1.5 mi upstream from Tom Miller Dam on the Colorado River at Austin.

DRAINAGE AREA.--38.240 mi2, of which 12,880 mi2 probably is noncontributing.

PERIOD OF RECORD...Chemical, biochemical, and pesticide analyses: October 1978 to current year.

JAN05..05..05..05..05..05..,05..

AUG29..29...29..29..,29..29..,

301739097471601 LAKE AUSTIN SITE AR


OXYGEN , SPE- DIS- CIFIC SOLVED

SAM- CON> PH OXYGEN, (PER. PLING DUCT- (STAND- TEMPER- DIS- CENT

TIME DEPTH ANCE ARD ATURE SOLVED SATUR- DATE (FEET) (UMHOS) UNITS) (DEC C) (MG/L) ATION)

JAN 05... 1210 1.00 527 8.0 10.5 9.9 89 05... 1212 10.0 527 8.0 10.0 9.8 87 05... 1214 20.0 527 8.0 10.0 9.6 85 05... 1216 34.0 527 8.0 10.0 9.5 84

AUG 29... 1040 1.00 575 7.9 28.0 7.8 101 29... 1042 10.0 580 7.8 22.5 4.6 54 29... 1044 20.0 580 7.8 22.0 3.8 44

301739097471201 LAKE AUSTIN SITE AC


OXYGEN, SPE- TRANS- DIS- CIFIC PAR- COLOR SOLVED

DATE

JAN05...05...05...05...05...05...05...

AUG29...29...29...29...29...29...

DATE

TIME

1130113211341136113811401142

102010221024102610281030

STREPTOCOCCIFECAL,

KF AGAR(COLS.PER

100 ML)

SAMPLINGDEPTH(FEET)

1.0010.020.030.040.050.060.0

1.0010.020.030.040.045.0

HARDNESS(MG/LAS

CAC03)

CONDUCTANCE(UMHOS)

527527527527527527527

584584584584584582

HARDNESS,NONCAR-BONATE(MG/LCAC03)

PH(STANDARD

UNITS)

8.08.08.08.08.08.08.0

7.97.77.77.77.77.7

CALCIUMDISSOLVED(MG/LAS CA)

TEMPERATURE(DEG C)

10.010.010.010.010.010.010.0

28.022.021.521.521.021.5

MAGNESIUM,DIS

SOLVED(MG/LAS MG)

ENCY(SECCHIDISK)(M)

1.90_________

1.50__..____

SODIUM,DIS

SOLVED(MG/LAS NA)

(PLATINUM-COBALTUNITS)

<1______ __<1

5.- _._<1

SODIUMAD

SORPTIONRATIO

TURBIDITY

(NTU)

2.2_____ __

4.2

3.5 _

8.5

POTASSIUM,DIS

SOLVED(MG/LAS K)

OXYGEN ,DIS

SOLVED(MG/L)

9.99.89.79.79.79.79.7

7.55.64.94.34.33.8

ALKALINITYFIELD(MG/LAS

CAC03)

(PERCENT

SATURATION)

88878686868686

976556494944


AS S04)

OXYGEN DEMAND, BIOCHEMICAL,5 DAY(MG/L)

.8 __ __.5

.8 __ .6


COLI- FORM, FECAL,0.7UM-MF(COLS./100 ML)

K5 ____ __

30 -__.

FLUO-R1DE,DIS

SOLVED(MG/LAS F)

23

28

200

200

210

210

50 47

50 47

58 47

58 47

20

20

22

22

30

30

35

36

1.0

1.0

1.1

3.5 150

3.5 150

4.2 150

1.1 4.4 150

37

37

40

48

54

54

64

66

.20

.20

.20

.20

-30-


LAKE AUSTIN AT AUSTIN, TX--Continued

301739097471201 LAKE AUSTIN SITE AC--Continued


DATE

JAN05...05...05...05...05...05...05...

AUG29...29...29...29...29...29...


SI02)

9.4 _

9.3

8.2 _

7.9


DISSOLVED(MG/L)

291 __

291

311 __

322

SOLIDS,RESIDUEAT 105DEG. C,

SUSPENDED

(MG/L)

<1--__---- 11

8__----__23

SOLIDS,VOLATILE,SUS

PENDED(MG/L)

<1--__ ----<1

7------__14

NITROGEN,

NITRATETOTAL(MG/LAS N)

._ --

-- __

.08

NITROGEN,


<.020--__

<.020

<.020

<.020

<.020 __

.020

NITROGEN,


<. 10--

<. 10 --

<. 10

<. 10

.10 -_

.10

NITROGEN,


<.060--__

.090

<.060

.020

.020 __

.110

NITROGEN,

ORGANICTOTAL(MG/LAS N)

-----_

.51 --- r

.28--

.38 -_

.19

NITROGEN, AMMONIA +ORGANIC

TOTAL(MG/LAS N)

.50 --

.60

.80

.30--

.40 __

.30

NITROGEN,

TOTAL(MG/LAS N)

--

--

.50

.40

PHOSPHORUS,

TOTAL(MG/LAS P)

<.010----

<.010 --

<.010

.010--

.010 __

.020

DATE

JAN05...05...05...05...05...05...05...

AUG29...29...29...29...29...29...

ARSENICDISSOLVED(UG/LAS AS)

1 _

1

1 --

1

BARIUM,DIS

SOLVED(UG/LAS BA)

71 __ 67

76__-- 79

CADMIUMDIS

SOLVED(UG/LAS CD)

<1----__ __<1

<1__ <1

CHROMIUM,DISSOLVED(UG/LAS CR)

<10--______

<10

<10__ __

<10

COPPER,DISSOLVED(UG/LAS CU)

1 __ __

1

2__ ___2

IRON,DIS

SOLVED(UG/LAS FE)

7 10 5

4 20--_8

LEAD,DIS

SOLVED(UG/LAS PB)

<1 __

1

<1 __--_<1

MANGANESE,DIS

SOLVED(UG/LAS MN)

1 10 12

1__10 __39

MERCURYDIS

SOLVED(UG/LAS HG)

<.1----___

<.1

<.1_. __

<.1

SELENIUM,DIS

SOLVED(UG/LAS SE)

<1-- __ <1

1_____<1

SILVER,DIS

SOLVED(UG/LAS AG)

<1 __ __<1

<1_. ____<1

ZINC,DIS

SOLVED(UG/LAS ZN)

<3-- ______<3

4_______9

301739097470901 LAKE'AUSTIN SITE AL


DATE

JAN05...05...05...

AUG29...29...

TIME

122012221224

10051007

SAMPLINGDEPTH(FEET)

1.0010.020.0

1.0012.0

SPE CIFICCONDUCTANCE(UMHOS)

527527527

580580

PH(STANDARD

UNITS)

8.08.08.0

7.97.7

TEMPERATURE(DEG C)

10.010.010.0

28.025.5

OXYGEN,DIS

SOLVED(MG/L)

9.89.79.6

7.44.1

OXYGEN, DIS

SOLVED(PERCENT

SATURATION)

878685

9651

302043097472401 LAKE AUSTIN SITE BC


DATE

JAN05:..05...05...05...

AUG29...29...29...29...

TIME

1235123712391241

1100110211041106

SAMPLINGDEPTH(FEET)

1.0010.020.028.0

1.0010.020.029.0

SPE CIFICCONDUCTANCE

.(UMHOS)

523523523563

568584584584

PH(STANDARD

UNITS)

,8.18.18.18.0

7.98.07.98.0

TEMPERATURE(DEG C)

10.010.010.09.5

28.021.521.021.0

TRANS PARENCY

(SECCHIDISK)(M)

1.70

.__

1.30

__--

OXYGEN ,DISSOLVED(MG/L)

9.89.89.79.0

7.56.55.95.3

OXYGEN, DIS SOLVED(PERCENT

SATURATION)

87878679

97746760

-31-


LAKE AUSTIN AT AUSTIN, TX Continued

302043097472401 LAKE AUSTIN SITE BC Continued


DATE

JAN05...05...05...05...

AUG29...29...29...29...

NITROGEN,


<.020__

<.020<.020

<.020__

<.020

NITROGEN,


<.10__

<.10<.10

<.10__

<.10

NITROGEN.


<.060__

<.060<.060

<.010____

.090

NITROGEN,


-.__

.-

.31


.50.-

.50

.60

.30__

.40


<.010.-

<.010<.010

.010--

.010

IRON,DIS

SOLVED(UG/LAS FE)

10-.1010

30-- 20

MANGANESE,DIS

SOLVED(UG/LAS MN)

<10--

<1010

10-- 20

302044097472301 LAKE AUSTIN SITE BL


OXYGEN, SPE- DIS- CIFIC SOLVED

SAM- CON- PH OXYGEN, (PER- PLING DUCT- (STAND- TEMPER- DIS- CENT

TIME DEPTH ANCE ARD ATURE SOLVED SATUR- DATE (FEET) (UMHOS) UNITS) (DEC C) (MG/L) ATION)

JAN 05... 1250 1.00 524 8.1 10.0 9.7 86 05... 1252 11.0 524 8.1 10.0 9.7 86

AUG 29... 1120 1.00 570 7.9 28.0 7.6 98 29... 1122 10.0 584 8.1 22.0 5.4 62

301926097502201 LAKE AUSTIN SITE CC


OXYGEN, SPE- TRANS- DIS- CIFIC PAR- COLOR SOLVED

DATE

JAN05...05...05...05...

AUG29...29...29...29...

DATE

JAN05...05...05...05...

AUG29...29...29...29...

TIME

1310131213141316

1130113211341136

STREPTOCOCCIFECAL,

KF AGAR(COLS.PER

100 ML)

<1__

79__ --

SAMPLINGDEPTH(FEET)

1.0010.020.025.0

1.0010.020.028.0

HARDNESS(MG/LAS

CAC03)

180__

190

200__

210

CONDUCTANCE(UMHOS)

524524524524

572584584584


45__ 54

53____56

PH(STANDARD

UNITS)

8.28.38.38.2

7.97.97.98.1


41___

43

45____

46

TEMPERATURE(DEC C)

11.010.510.510.5

26.520.520.520.5

MAGNESIUM,DIS

SOLVED(MG/LAS MG)

20__

21

22____

22

ENCY(SECCHIDISK)(M)

4.0__

1.50 --

SODIUM,DIS

SOLVED(MG/LAS NA)

31___

33

36__

36

(PLATINUM-COBALTUNITS)

<1__ <1

<1____<1

SODIUMAD

SORPTION

RATIO

1.0____

1.1

1.1____

1.1

TURBIDITY

(NTU)

.80__

.80

1.4

4.7

POTASSIUM,DIS

SOLVED(MG/LAS K)

3.6____

3.5

3.7____

3.8

OXYGEN ,DIS

SOLVED(MG/L)

10.09.89.89.6

8.56.46.35.7


140____

140

150

__150

(PERCENT

SATURATION)

91888886

107727164


AS S04)

39___

39

41

__42


.3__--.4

.4-.__.2

CHLORIDE,DIS-

. SOLVED(MG/LAS CL)

58___

58

64____

67


K1__ --

21 --

FLUO-RIDE,DIS

SOLVED(MG/LAS F)

.20____

.20

.20___

.20

-32-



301926097502201 LAKE AUSTIN SITE CC Continued


DATE

JAN05...05...05...05...

AUG29...29...29...29...


SI02)

6.9 __

7.3

7.7 _

7.4


DISSOLVED(MG/L)

284 __

289

310 __

314

SOLIDS,RESIDUEAT 105DEC. C,

SUSPENDED

(MG/L)

<1_-

3

8 __10

SOLIDS,VOLATILE,SUS

PENDED(MG/L)

<1____<1

6 __

2

NITROGEN,


<.020<.020

<.020

<.020<.020

__<.020

NITROGEN,


<.10<.10

__<.10

.10

.10__

.10

NITROGEN,


.060<.060

__.060

.020

.120_

.070

NITROGEN,


.54 __

.44

.28

.18

.53


TOTAL(MG/LAS N)

.60.20

.54

.30

.30__

.60

PHOSPHORUS,

TOTAL(MG/LAS P)

<.010<.010

<.010

.020

.010._

.030

ARSENICDIS

SOLVED(UG/LAS AS)

1--__

1

1--__

1

DATE

JAN05...05...05...05...

AUG29...29...29...29...

BARIUM,DIS

SOLVED(UG/LAS BA)

69

CADMIUMDIS

SOLVED(UG/LAS CD)

<1


<10


1

IRON,DIS

SOLVED(UG/LAS FE)

<320

LEAD,DIS

SOLVED(UG/LAS PB)

2

MANGANESE,DIS

SOLVED(UG/LAS MN)

4<10

MERCURYDIS

SOLVED(UG/LAS HG)

<.1

SELENIUM,DIS

SOLVED(UG/LAS SE)

<1

SILVER,DIS

SOLVED(UG/LAS AG)

1

ZINC,DIS

SOLVED(UG/LAS ZN)

<3--

72

79

80

<1

<320

220

12

<3

4

302021097540001 LAKE AUSTIN SITE DC


DATE

JAN05.05.05.

AUG29.29.29.

. .

. .

. .

. .

TIME

134513471349

120012021204

OXYGEN, SPE- TRANS- DIS- NITRO- CIFIC PAR- SOLVED GEN,

SAM- CON- PH ENCY OXYGEN, (PER- NITRITE PLING DUCT- (STAND- TEMPER- (SECCHI DIS- CENT TOTAL DEPTH ANCE ARD ATURE DISK) SOLVED SATUR- (MG/L (FEET) (UMHOS) UNITS) (DEC C) (M) (MG/L) ATION) AS N)

11018

11016

NITRO-GEN.

N02+N03TOTAL

DATE

JAN05..05..05..

AUG29..29..29..

(MG/LAS N)

.

.

.

.

.

<. 1 0_-

<. 10

.10_.

<. 10

.00

.0

.0

.00

.0

.0

NITROGEN,


<.060__

.070

.080..

.120

538538538

584583583

NITROGEN,


..

...43

.22__

.18

8.48.48.3

8.18.18.2


.50._

.50

.30_.

.30

10.5 3,10.010.0

19.5 3.19.519.5

NITROGEN,

TOTAL(MG/LAS N)

....

.40__--

,7..

,5_--


<.010_.

.020

.010._

.010

10.910.610.1

5.95.65.1

IRON,DIS

SOLVED(UG/LAS FE)

20__20

20_.40

98 <.9489 <.

65 <.6256 <.

MANGANESE,DIS

SOLVED(UG/LAS MN)

10__10

10__20

020..

020

020_

020

-33-



302314097544901 LAKE AUSTIN SITE EC


DATE

JAN05...05...

AUG29...29...

DATE

JAN05...05...

AUG29...29...

DATE

JAN05...05...

AUG29...29...

TIME

1415 U17

12301232

STREP TOCOCCIFECAL,

KF AGAR(COLS.PER

100 ML)

<1

K5

SILICA, DIS SOLVED (MG/L AS SI02)

6.3 6.5

7.5 7.5

SAM-PLING DEPTH (FEET)

1.009.00

1.008.00

HARD NESS (MG/L AS

CAC03)

190200

210210

SOLIDS, SUM OF CONSTI TUENTS,

DIS SOLVED (MG/L)

299306

317310

SPE CIFIC CON DUCT ANCE (UMHOS)

555552

584584

HARD NESS, NONCAR- BONATE (MG/L CAC03)

5461

6256

SOLIDS, RESIDUE AT 105 DEC. C,SUS

PENDED(MG/L)

PH(STAND ARD

UNITS)

8.2 8.4

7.87.9


4344

4746

SOLIDS, VOLA TILE. SUS

PENDED (MG/L)

TEMPER ATURE

(DEC C)

12.511.0

18.0 18..0

MAGNE SIUM, DIS SOLVED (MG/L AS MG)

2122

2322

NITRO GEN,

NITRITE TOTAL (MG/L AS N)

,020,020

<.020 <.020

TRANS PAR ENCY

(SECCHIDISK) (M)

2.10

2.40

SODIUM,DIS SOLVED (MG/L AS NA)

3435

3736

NITRO GEN,

N02+N03 TOTAL (MG/L AS N)

OXYGEN, OXYGEN COLI-

,10 ,10

.10

.10

COLOR (PLAT INUM- COBALT UNITS)

SODIUMAD

SORP TION

RATIO

1.1 1.1

1.1 1.1

NITRO GEN,

AMMONIA TOTAL (MG/L AS N)

<.060 <.060

.090

.030

TUR BID ITY

(NTU)

1.6 4.3

1.0 1.0

POTAS SIUM, DIS

SOLVED (MG/L AS K)

3.9 3.7

4.4 3.9

NITRO GEN,

ORGANIC TOTAL (MG/L AS N)

.21

.17

OXYGEN, DIS SOLVED (MG/L)

10.810.9

3.8 3.3

ALKA LINITY FIELD (MG/L AS CAC03)

140140

150150

NITRO GEN, AM MONIA + ORGANIC TOTAL (MG/L AS N)

.60 1.90

.30

.20

DIS SOLVED (PER CENT

SATUR ATION)

10299

4135

SULFATE DIS SOLVED (MG/L

AS S04)

4244

4138

NITRO GEN,

TOTAL (MG/L AS N)

.40

.30

DEMAND, BIO CHEM ICAL, 5 DAY (MG/L)

.6

.7

.3

CHLO RIDE, DIS SOLVED (MG/L AS CL)

6466

6766

PHOS PHORUS, TOTAL (MG/L AS P)

<.010 .050

.020

.010

FORM,FECAL,0.7UM-MF

(COLS./ 100 ML)

K3

K1

FLUO- RIDE, DIS SOLVED (MG/L AS F)

.30

.30

.20

.20

ARSENICDIS SOLVED (UG/L AS AS)

DATE

JAN05...05...

AUG29...29...

BARIUM,DIS SOLVED (UG/L AS BA)

7779

7980

CADMIUMDIS

SOLVED (UG/L AS CD)

CHRO MIUM, DIS SOLVED (UG/L AS CR)

COPPER, DIS SOLVED (UG/L AS CU)

IRON, DIS

SOLVED (UG/L AS FE)

<3 3

2614

LEAD, DIS

SOLVED (UG/L AS PB)

MANGA NESE, DIS SOLVED (UG/L AS MM)

MERCURYDIS

SOLVED (UG/L AS HG)

SELE NIUM, DIS SOLVED (UG/L AS SE)

SILVER,DIS SOLVED (UG/L AS AG)

ZINC, DIS

SOLVED (UG/L AS ZN)

<3 5

1521

DATE

JAN05...05...

AUG29...29...

DATE

JAN05...05...

AUG29...29...

301739097471201 LAKE AUSTIN SITE AC


SAM PLING AME-

TIME DEPTH TRYNE (FEET) TOTAL

11301142

10201030

ATRA- ATRA- CYAN- CYPRA-TONE ZINE, AZINE ZINETOTAL TOTAL TOTAL TOTAL(UG/L) (UG/L) (UG/L) (UG/L)

1.0060.0

1.0045.0

PROME- PROME- PRO- SIMA- SIME-TONE TRYNE PAZINE PROPHAM SEVIN, ZINE TONETOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL(UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L)

<2.0 <2.0

<2.0 <2.0

<2.0 <2.0

<2.0 <2.0

METHO-MYL TOTAL (UG/L)

<2.0 <2.0

<2.0 <2.0

SIME- TRYNE TOTAL (UG/L)

-34-


LAKE AUSTIN AT AUSTIN, TX--Continued

DATE

JAN05...05...

AUG29...29...

DATE

JAN05...05...

AUG29...29...

301926097502201 LAKE AUSTIN SITE CC


SAM PLING AME-


13101316

11301136

PROME-TONE

TOTAL (UG/L)

1.00 <.1(25.0 <.1C

1.00 <.1C28.0 <.1C

PROME- PRO-TRYNE PAZINETOTAL TOTAL(UG/L) (UG/L)

ATRA- TONE TOTAL (UG/L)

PROPHAM TOTAL (UG/L)

<2.0 <2.0

<2.0 <2.0

ATRA- CYAN- CYPRA-ZINE, AZINE ZINETOTAL TOTAL TOTAL(UG/L) (UG/L) (UG/L)

SEVIN,TOTAL(UG/L)

<2.0 <2.0

<2.0 <2.0

SIMA- SIME-ZINE TONE

TOTAL TOTAL(UG/L) (UG/L)


<2.0 <2.0

<2.0 <2.0


DATE

JAN05...05...

AUG29...29...

DATE

JAN05...05...

AUG29...29...

302314097544901 LAKE AUSTIN SITE EC


SAM PLING AME-



14151417

12301232

PROME-TONE TOTAL (UG/L)

1.00 <.1(9.00 <.1(

1.00 <.1(8.00 <.1(



<2.0 <2.0

<2.0 <2.0


SEVIN,TOTAL(UG/L)

<2.0 <2.0

<2.0 <2.0




<2.0 <2.0

<2.0 <2.0


-35-


08157900 TOWN LAKE AT AUSTIN, TX

LOCATION. Lat 30MV56", long 97 e 43'03", Travis County, Hydrologic Unit 12090205, at Longhorn Dam on the Colorado River at Austin, 1.5 mi downstream from Interstate Highway 35, and 2.3 mi southeast of the State Capitol in Austin.

DRAINAGE AREA. 38,390 mi 2 , approximately, of which 12,880 mi 2 probably is noncontributing.

PERIOD OF RECORD..-Chemical, biochemical, and pesticide analyses: February 1975 to current year.

301559097424801 TOWN LAKE SITE AR.


DATE

JAN06...06...06...06...

AUG30...30...30...30...

TIME

110511071109111'

1020102210241026

SAM-PLINGDEPTH(FEET)

1.0010.020.0o* o

1.0010.020.027.0

SPE CIFICCON-DUCT-ANCE(UMHOS)

548548534534

575575575575

PH(STANDARD

UNITS)

7.97.97.87.8

7.57.47.47.4

TEMPERATURE(DEC C)

12.512.511.511.5

27.526.526.025.5

OXYGEN,DIS

SOLVED(MG/L)

9.39.38.27.9

5.74.64.94.5


SATURATION)

88887572

73586156

301500097424801 TOWN LAKE SITE AC


DATE

JAN06...06...06...06...

AUG30...30...30...30...

DATE

JAN06...06...06...06...

AUG30...30...30...30...

TIME

1015101710191021

1000100210041006

STREPTOCOCCIFECAL,

KF AGAR(COLS.PER

100 ML)

20_.._

30.__.

SAMPLINGDEPTH(FEET)

1.0010.020.026.0

1.0010.020.027.0

HARDNESS(MG/LAS

CAC03)

220

210

210._

210


543543539539

575575575579


38.. 43

53._..53

PH(STANDARD

UNITS)

7.87.87.77.7

7.57.57.47.4


54....

54

49._..

49

TEMPERATURE(DEC C)

13.013.011.011.0

27.527.026.026.0

MAGNESIUM,DIS

SOLVED(MG/LAS MG)

20..._

19

22._..

22

TRANS PARENCY

(SECCHIDISK)(M)

2.00

2.10._ --

SODIUM,DIS

SOLVED(MG/LAS NA)

27 ._

27

34__

35

COLOR(PLATINUM-COBALTUNITS)

<1.. <1

<1__ <1

SODIUMAD

SORPTION

RATIO

.8

.._..8

1.0__..

1.1

TURBIDITY

(NTU)

1.8.__

2.1

2.0

4.0

POTASSIUM,DIS

SOLVED(MG/LAS K)

2.9..._

2.8

4.1__..

3.6

OXYGEN ,DIS

SOLVED(MG/L)

8.79.08.58.3

6.06.35.44.9


180 _.

170

160__

160


SATURATION)

83867775

77806761


AS S04)

33_._.

32

43__..

44


.6 ._.5

.6 .6


45____

43

62__._

63


K14_.__._

210__ --

FLUO-RIDE,DIS

SOLVED(MG/LAS F)

.30____

.30

.20____

.20

-35-


TOWN LAKE AT AUSTIN,TX--Continued

DATE

JAN06...06...06...06...

AUG30...30...30...30...

DATE

JAN06...06...06...06...

AUG30...30...30...30...

301500097424801 TOWN LAKE AC--Continued


SILICA, DIS

SOLIDS, SUM OF CONSTI

SOLIDS,RESIDUE SOLIDS,

VOLA-

NITRO-NITRO- GEN.AM- GEN, MONIA +

SOLVED TUENTS,(MG/LASSI02)

9.4

9.1

8.6

8.7

DIS SOLVED (MG/L)

300

289

319

322

NITRO- NITRO- NITRO- NITRO-AT 105 VOLA- GEN, GEN, GEN, GEN, DEC. C, TILE, NITRATE NITRITE N02+N03 AMMONIA ORGANIC ORGANICSUS- SUS- TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL

FENDED FENDED (MG/L (MG/L (MG/L (MG/L (MG/L (MG/LAS N)(MG/L) (MG/L) AS N) AS N) AS N) AS N) AS N)

.38<.020 .020

<.020

<.020 <.020

<.020

.50

.40

.50

.10

.10

.090

.080

.090

.080

.060

.100

.61

.52

.51

.22

.44

.30

.70

.60

.60

.30

.50

.40

NITRO GEN, TOTAL (MG/L S N)

1.2 1.0

1.1

.40


.020

.020

.020

.010

.50

.010

.010

ARSENICDIS

SOLVED(UG/L AS AS)

BARIUM,DIS

SOLVED(UG/L AS BA)

CADMIUMDIS

SOLVED(UG/L AS CD)

CHROMIUM,DISSOLVED(UG/L AS CR)

COPPER,DISSOLVED(UG/L AS CU)

IRON,DIS

SOLVED(UG/L AS FE)

LEAD,DIS

SOLVED(UG/L AS PB)

MANGANESE,DIS

SOLVED(UG/L AS MN)

MERCURYDIS

SOLVED(UG/L AS HG)

SELENIUM,DIS

SOLVED(UG/L AS SE)

SILVER,DIS

SOLVED(UG/L AS AG)

ZINC,DIS

SOLVED(UG/L AS ZN)

69

65

78

79

00 3020

<310

45

210

24

17

6

9

20

301503097424701 TOWN LAKE SITE AL


SAM PLING

TIME DEPTHDATE

JAN06...06...

AUG30...30...30...

10501052

093909410943

1.0012.0

1.0010.018.0

SPE CIFIC CON DUCT ANCE

PH OXYGEN,(STAND- TEMPER- DIS-ARD ATURE SOLVED

538542

575578578

7.8 7.8

7.37.37.4

13. 12.

28.027.526.0

8.9 8.1

5.4 5.4 5.2

OXYGEN,DIS

SOLVED (PER CENT

SATUR-(FEET) (UMHOS) UNITS) (DEC C) (MG/L) ATION)

8676

706965

301500097440801 TOWN LAKE SITE BR


DATE

JAN06...06...06...

AUG30...30...30...30...

TIME

113011321134

1050105210541056

SAMPLINGDEPTH(FEET)

SPECIFICCONDUCTANCE(UMHOS)

PH(STANDARD

UNITS)

TEMPERATURE(DEC C)

OXYGEN ,DIS

SOLVED(MG/L)

OXYGEN , DISSOLVED(PERCENT

SATURATION)

1.0010.014.0

1.0010.020.025.0

549558544

578580580580

7.8

7.6 7.6 7.6 7.6

13.012.011.0

27.026.025.525.5

9.3 9.38.4

6.5 6.2 5.8 5.6

898676

83777269

-37-


TOWN LAKE AT AUSTIN, TX Continued

301504097440901 TOWN LAKE SITE BC


DATE

JAN06...06...06...06...

AUG30...30...30...

TIME

1120112211241126

104010421044

SAMPLINGDEPTH(FEET)

1.0010.020.027.0

1.0010.021.0


550550550541

575579579

PH(STANDARD

UNITS)

7.97.97.87.8

7.77.67.6

TEMPERATURE(DEG C)

13.012.511.511.0

27.026.025.5

OXYGEN,DIS

SOLVED(MG/L)

9.29.29.18.2

6.76.25.4


SATURATION)

88878375

857767

301544097445201 TOWN LAKE SITE CR


DATE

JAN06...06...

AUG30...30...

TIME

11481150

10201022

SAMPLINGDEPTH(FEET)

1.009.00

1.0010.0


558565

591591

PH(STANDARD

UNITS)

7.87.8

7.57.5

TEMPERATURE(DEG C)

12.012.0

24.524.0

OXYGEN,DIS

SOLVED(MG/L)

9.69.5

6.15.9

OXYGEN, DIS

SOLVED(PERCENT

SATURATION)

8988

7471

301546097445101 TOWN LAKE SITE CC


DATE

JAN06...06...

AUG30...30...30...

TIME

11401142

111011121114

SAMPLINGDEPTH(FEET)

1.0014.0

1.0010.018.0


558558

589589589

PH(STANDARD

UNITS)

7.87.6

7.67.67.6

TEMPERATURE(DEG C)

12.011.0

24.524.524.5

OXYGEN,DIS

SOLVED(MG/L)

9.68.2

5.95.75.4


SATURATION)

8975

726966

301556097452301 TOWN LAKE SITE DR


DATE

JAN06...06...06...

TIME

121612181220

SAMPLINGDEPTH(FEET)

1 0010.015.0


575565565

PH(STANDARD

UNITS)

7.87.87.7

TEMPERATURE(DEG C)

12.511.511.5

OXYGEN ,DIS

SOLVED(MG/L)

10.49.99.2

OXYGEN, DISSOLVED(PERCENT

SATURATION)

989184

-38-


TOWN LAKE AT AUSTIN, TX Continued

DATE

JAN0606...06...

AUG30...30...30...

301558097452201 TOWN LAKE SITE DC


SPE- TRANS- CIFIC PAR-

SAM- CON- PH ENCY PLING DUCT- (STAND- TEMPER- (SECCHI

TIME DEPTH ANCE ARD ATURE DISK)

COLOR(PLAT INUM-COBALT

TUR BIDITY

OXYGEN, DIS

SOLVED

OXYGEN,DISSOLVED(PER CENT

SATUR-(FEET) (UMHOS) UNITS) (DEC C) (M) UNITS) (NTU)

DATE

JAN06..06..,06..

AUG30..30...30..,

DATE

JAN06...06...06...

AUG30...30...30...

DATE

JAN06...06...06...

AUG30...30...30...

(MG/L) ATION)

959082

727169

">0012021204

113011321134

OXYGENDEMAND,

BIOCHEMICAL.5 DAY(MG/L)

.7

.5

.4

.5

POTASSIUM,DIS

SOLVED(MG/LAS K)

2.5

2.7

3.7

3.7

NITROGEN,


<.020<.020<.020

<.020<.020<.020

1.0010.020.0

1.0010.018.0

COLI-FORM,FECAL,0.7UM-MF

(COLS./100 ML)

110

240

ALKALINITY' FIELD

(MG/LAS

CAC03)

200

190

150150~

NITROGEN,


.70

.50

.60

<.10<. 1 0

.10

583565565

582582582

STREPTOCOCCI

FECAL,KF AGAR(COLS.

PER100 ML)

37

70


AS S04)

34

34

42

44

NITROGEN,


<.060.060.070

.080.090.070

7.77.87.7

7.77.77.7

HARDNESS(MG/L

ASCAC03)

240

230

200

210


43

45

64

65

NITROGEN,


.64

.73

.22

.31

.13

12.511.511.0

24.524.024.0

HARDNESS,

NONCAR-BONATE

(MG/LCAC03)

39

39

54

63

FLUO-RIDE,

DISSOLVED(MG/LAS F)

.30

.30

.20

.20


TOTAL(MG/LAS N)

.50

.70

.80

.30

.40

.20

2.70

1.70


61

57

47

49


SI02)

9.0

9.6

8.1

8.4

NITROGEN,

TOTAL(MG/LAS N)

1.21.21.4

__

.30

<1 <1

<! < 1

MAGNESIUM,DIS

SOLVED(MG/LAS MG)

21

21

21

22


DISSOLVED(MG/L)

317

311

312

318

PHOSPHORUS,

TOTAL(MG/LAS P)

.020<.010

.020

.010

.010

.010

1.2

1.0

3.2

3.0

SODIUM,DIS

SOLVED(MG/LAS NA)

26

27

36

36


SUSPENDED

(MG/L)

2

0

10

12

IRON,DIS

SOLVED(UG/LAS FE)

320<3

72046

10.19.89.0

5.95.95.7

SODIUMAD

SORPTION

RATIO

.8

.8

1.1

1.1

SOLIDS,VOLATILE,SUS

PENDED(MG/L)

<1

0

<1

<1

MANGANESE,DIS

SOLVED(UG/LAS MN)

81014

820

9

SAM PLING

TIME DEPTHDATE

JAN06...06...06...

AUG30...30...30...

133013321334

120012021204

1.0010.014.0

1.0010.018.0

301712097470701 TOWN LAKE SITE EC



PH(STAND- TEMPER- ARD ATURE

(FEET) (UMHOS) UNITS) (DEC C)

556543538

582582582

7.67.87.9

7.9 7.9 7.9

13,13.12.0

22, 22,

1.40

OXYGEN, OXYGEN COL I-TRANS

PARENCY

(SECCHIDISK)

(M)


TURBIDITY

(NTU)

OXYGEN,DIS

SOLVED(MG/L)

DISSOLVED(PER

CENTSATURATION)

DEMAND,BIOCHEMICAL,5 DAY(MG/L)

FORM,FECAL,0.7UM-MF

(COLS./100 ML)

23.0

.80

1.0

3.5

3.0

9.69.7

10.3

6.3 6.3 5.9

929395

747470

K12

K14

-39-


TOW LAKE AT AUSTIN, TX Continued

301712097470701 TOWN LAKE SITE EC Continued


DATE

JAN06...06...06...

AUG30...30...30...

DATE

JAN06...06...06...

AUG30...30...30...

STREP TOCOCCI

FECAL,KF A6AR(COLS.

PER100 ML)

K13....

240..


SI02)

9.0_.

8.9

7.9__

7.8

HARDNESS(MG/LAS

CAC03)

220_.

210

210..

210


DISSOLVED(MG/L)

303__

296

309__

317

HARDNESS,

NONCAR-BONATE

(MG/LCAC03)

39..52

58 58


SUSPENDED

(MG/L)

4_.<1

15._14


53__

50

47..

47

SOLIDS,VOLA

MAGNESIUM,DIS

SOLVED(MG/LAS MG)

21__

21

22

22

NITROGEN,

TILE, NITRITESUS

PENDED(MG/L)

<1_.<1

8._<1

TOTAL(MG/LAS N)

<.020._

<.020

<.020_.

<.020

SODIUM.DIS

SOLVED(MG/LAS NA)

27..

30

36..

36

NITROGEN.

SODIUMAD

SORPTION

RATIO

POTAS- ALKA-SIUM, LINITY SULFATEDIS- FIELD

SOLVED (MG/L(MG/L AS

DISSOLVED(MG/L

AS K) CAC03) AS S04)

.8._.9

1.1--

1.1

NITROGEN,

2.9 180--

3.2 160

3.7 150

4.4 150

NITRO-NITRO- GEN.AM-

GEN, MONIA +N02+N03 AMMONIA ORGANIC ORGANIC

TOTAL(MG/LAS N)

.40

.20

<. 10_.

<.10

CHRO-BARIUM, CADMIUM MIUMDIS- DIS- DIS

COPPERDIS-

IRON, LEAD,DIS- DIS-

TOTAL(MG/LAS N)

<.060._

.060

.050__

.030

TOTAL TOTAL(MG/L (MG/LAS N) AS N)

.60

.54 .60

.35 .40.-

.37 .40

35_.

36

36--

44

NITRO


47'__

51

66-.

66

PHOS-GEN, PHORUS,

TOTAL(MG/LAS N)

1.0__

.80

__

TOTAL(MG/LAS P)

<.010__

.010

.010__

010

FLUO-RIDE,

DISSOLVED(MG/LAS F)

.30__

.30

.20

.20

ARSENICDIS

SOLVED(UG/LAS AS)

1._

1

<1__

1

MANGA- SELE-NESE,

DIS-MERCURY NIUM,

DIS- DIS-SILVER

DIS-ZINC,DIS-

SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED(UG/L (UG/L (UG/L (UG/L

DATE AS

JAN06.06.06.

AUG30.30.30.

. .

. .

. .

. .

BA) AS

70__73

80_.82

(UG/L (UG/LCD) AS CR) AS CU) AS

<1 <_.<1 <

<1 <..<1

10-

10

10..10

2.1

2.2

(UG/L (UG/L (UG/L (UG/L (UG/LFE) AS PB) AS MN) AS HG) AS SE) AS AG) AS

8 <..

4 <

14..12

1.1

2.3

3 <.1 <.3 <.1 <

3 <.1 <.7 <.1 <

1 <.1

1 <.1 <

1.1

1.1

ZN)

7__

4

6._13

301601097454001 TOWN LAKE SITE FC


DATETIME

11451147

SAMPLINGDEPTH(FEET)

1.008.00

SPECIFICCONDUCTANCE(UKHOS)

630633

PH(STANDARD

UNITS)

7.27.2

TEMPERATURE(DEC C)

23.523.0

OXYGEN,DIS

SOLVED(MG/L)

8.26.4

OXYGEN, DISSOLVED(PERCENT

SATURATION)

9876

-40-


TOWN LAKE AT AUSTIN, TX--Continued

DATE

JAN06...06...

AUG30...30...

DATE

JAN06...06...

AUG30...30...

301500097424801 TOWN LAKE SITE AC


SAM PLING AME-


10151021

10001006


1.00 <.1(26.0 <.1(

1.00 <.1(27.0 <.1(




<2.0 <2.0

<2.0 <2.0


SEVIN,TOTAL(UG/L)

<2.0 <2.0

<2.0 <2.0




<2.0 <2.0

<2.0 <2.0


DATE

JAN06...06...

AUG30...30...

DATE

JAN06...06...

AUG30...30...

301712097470701 TOWN LAKE SITE EC


SAM PLING AME-


ATRA- ATRA- CYAN- CYPRA-TONE ZINE, AZINE ZINETOTAL TOTAL TOTAL TOTAL(UG/L) (UG/L) (UG/L) (UG/L)

13301334

12001204

1.0014.0

1.0018.0

PROME- PROME- PRO- SIMA- SIME-TONE TRYNE PAZINE PROPHAM SEVIN, ZINE TONE

TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL(UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L)


<2.0 <2.0

<2.0 <2.0


<2.0 <2.0

<2.0 <2.0

<2.0 <2.0

<2.0 <2.0

-41-


08158000 COLORADO RIVER AT AUSTIN, TX (National stream-quality accounting network)

LOCATION.--Lat 30°14"40", long 97°41'39", Travis County, Hydrologic Unit 12090205, on right bank 1,000 ft upstream from upstream bridge on U.S. Highway 183 in Austin, 1.4 mi downstream from Longhorn Dam, and at mile 290.3.

DRAINAGE AREA.-39,009 mi 2 , approximately, of which 11,403 mi 2 probably is noncontributing.


PERIOD OF RECORD.--February 1898 to current year. Records of daily discharge for Dec. 13-26, 1914, and Feb. 9-17, 1915, published in WSP 408, have been found unreliable and should not be used.

REVISED RECORDS.--WSP 508: 1915(m). WSP 528: 1900(M), 1918(m). WSP 548: 1901-16. WSP 1342: Drainage area. WSP 1562: 1908, 1929(M), 1936.

GAGE. Water-stage recorder. Datum of gage is 402.27 ft National Geodetic Vertical Datum of 1929. Prior to June 19, 1939, all records collected at or near Congress Avenue Bridge 3.9 mi upstream at datum 19.6 ft higher; prior to June 18, 1915, nonrecording gages, recording gages thereafter; June 20, 1939, to Oct. 16, 1963, at site 1,000 ft downstream from present site at datum 5.0 ft higher.

REMARKS.--Water-discharge records fair. Since 1937, at least 10 percent of drainage area regulated by reservoirs. Flow largely regulated by Lake Travis (station 08154500). The city of Austin diverts water for municipal use up stream from station and returns sewage effluent downstream. Many other diversions above Lake Buchanan for irriga tion, municipal supplies, and oilfield operations. Gage-height telemeter at station.

AVERAGE DISCHARGE. 38 years (water years 1899-1936) unregulated, 2.711 ftVs (1,964,000 acre-ft/yr); 47 years (water years 1937-83) regulated, 1,985 ft 3 /s (1,438,000 acre-ft/yr).

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 481,000 ft 3 /s June 15, 1935 (gage height, 50 ft, present site and datum, from floodmark); minimum daily, 10 ft 3 /s Dec. 17, 1972.

EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum stage since at least 1833, 51 ft July 7, 1869, present site and datum (adjusted to present site on basis of record for flood of June 15, 1935), determined from information concerning stage at former site furnished by Dean T. U. Taylor.

EXTREMES FOR CURRENT YEAR.--Maximum discharge, 8,440 ft 3 /s Aug. 8 at 1630 hours (gage height, 9.98 ft); minimum daily, 6.3 ft'/s Oct. 21.


DAY OCT

12345

6789

10

1112131415

1617181920

2122232425

262728293031

TOTALMEANMAXMINAC -FT

99384836970759

73136

736789

4698826753

4949495141

6.36.5

654936

5941

125184

4944

4663.81509936.3

9250

NOV

471802325964

5361516357

5673516347

6557658360

674213927068

DEC

83312206367771

711246754120

12671576967

6363636061

64 7965 50989 103976 7365 58

7014566706581

3853 5292128 171976 122047 54

7640 10500

CAL YR 1982 TOTAL 540922.8 MEAN WTR YR 1983 TOTAL 296366.8 MEAN

JAN

24580697673

7482857570

7072717366

8380179156121

14810210310899

10497

10810796

114

308699.524566

6120

1482812

FEB

979798

119291

101105343131

111117113115293

117112102

MAR

9192

107289110

119105813238544

573555531543737

136 388134 1230135 543133 582148 613

60517838110919694

3886 12863139 415343 123097 91

7710 25510

APR

74390426400423

43739918401210474

438641474411580

MAY

15201540145013401290

11801200120012401400

21301220131011801210

JUN

16101600167017302550

18301790218020702070

19001930199020001280

674 1140 2160626 1250 1920651 1440 1830488 1060 1810588 1510 1830

136 521 498137 748 552124 902 915127 199 996103 127 1070

944 1780593 1960

1210 18901260 20201420 2110

11301160112012001310

21595720

184074

42830

121011401310154014301480

19302020191020401920

40347 573301302 19112130 2550593 1280

80030 113700

JUL

18602020192019502010

22502090210022102200

21902320220024702260

4582040170012701170

14701460136013501250

116010401060112010901080

5212816822470458

103400

AUG

10601050938964

2240

2260113022801080925

89614743112046

629662649510406

780645

132021002050

199019102160209020902300

3785812212300

4675090

SEP

24102260243023402370

23802590247024202280

21102010195015001530

15601640203022501760

941878867966

1020

977986168014301430

5346517822590867

106000

MAX 7250 MIN 6.3 AC-FT 1073000 MAX 2590 MIN 6.3 AC-FT 587800

-42-


08158000 COLORADO RIVER AT AUSTIN, TX--Contlnuod


PERIOD OF RECORD. Chemical analyses: October 1947 to October 1973. Chemical and bloc hum I c<il analyui'H: October 19/J to current year. Sediment records: October 1974 to current year.

PERIOD OF DAILY RECORD. SPECIFIC CONDUCTANCE: October 1947 to current year. WATER TEMPERATURES: October 1947 to current year.

REMARKS.--Mean monthly and annual concentrations and loads for selected chemical constituents have been computed uHln>, the daily (or continuous) records of specific conductance and regression relationships between each chemical constit uent and specific conductance. Regression equations developed for this station may be obtained from the Geolo^lc/il Survey District office upon request.

EXTREMES FOR PERIOD OF DAILY RECORD.--SPECIFIC CONDUCTANCE: Maximum daily, 737 micromhos Jan. 12, 1964; minimum daily, 243 micromhos Dec. 2. 19i3. WATER TEMPERATURES: Maximum daily, 33.0°C July 25, 1979;minimum daily, 6.0°C Jan. 28, 1948, Feb. 4, 1949.

EXTREMES FOR CURRENT YEAR. SPECIFIC CONDUCTANCE: Maximum daily, 721 micromhos Nov. 17; minimum daily, 387 micromhos Dec. 4.WATER TEMPERATURES: Maximum daily, 26.5°C Aug. 16; minimum daily, 11.0°C on several days during November and January.


DATE

NOV09...

FEE15...

JUN28...

JUL20...

AUG23...

SEP27...

DATE

NOV09...

FEE15...

JUN28...

JUL20...

AUG23...

SEP27...

DATE

NOV09...

FEE15...

JUN28...

JUL20.. .

AUG23...

SEP27. . .

OXYGEN, OXYGEN COLI- STREP- SPE- DIS- DEMAND, FORM, TOCOCCI

STREAM- CIFIC SOLVED BIO- FECAL, FECAL, HARD- FLOW, CON- PH TUR- OXYGEN, (PER- CHEM- 0.7 KF AGAR NESS

INSTAN- DUCT- (STAND- TEMPER- BID- DIS- CENT ICAL, UM-MF (COLS. (MG/L) TIME TANEOUS ANCE ARD ATURE ITY SOLVED SATUR- 5 DAY (COLS./ PER AS

(CFS) (UMHOS) UNITS) (DEC C) (NTU) (MG/L) ATION) (MG/L) 100 ML) 100 ML) CAC03)

0815

0940

1400

1115

0845

1140

HARDNESS,

NONCAR-BONATE(MG/LCAC03)

44

38

56

54

37

56

SOLIDS,RESIDUEAT 180DEC. CDIS

SOLVED(MG/L)

299

299

320

--

358

--

65

353

3420

1290

25

1110


50

57

50

51

51

46


DISSOLVED(MG/L)

285

289

319

309

319

310

540

520

573

562

583

574

MAGNESIUM,DISSOLVED(MG/LAS MG)

19

18

22

21

21

22

NITROGEN,

N02+N03DIS

SOLVED(MG/LAS N)

.15

.49

.14

__

.23

7.4

7.6

8.0

_.

7.4

--

SODIUM,DIS

SOLVED(MG/LAS NA)

28

23

34

31

31

34

NITROGEN,

AMMONIADIS

SOLVED(MG/LAS N)

.070

.080

.070

_.

.130

19.0

15.0

25.0

22.0

29.0

22.0

SODIUMAD

SORPTION

RATIO

.9

.7

1.0

1.0

1.0

1.1


1.00

.60

.50

_.

.50

--

1.0

3.9

2.1

1.0

--

POTASSIUM,DIS

SOLVED(MG/LAS K)

3.2

2.3

3.6

3.2

3.3

3.5


.030

.040

.020

__

.010

_-

5.8

9.4

5.2

3.4


160

180

160

160

178

150

PHOSPHORUS,

DISSOLVED(KG/LAS P)

<.010

.030

.040

__

.010

._

63

96

64

45


AS S04)

33

35

43

43

40

43

PHOSPHORUS,ORTHO ,DIS

SOLVED(MG/LAS P)

<.010

.020

.020

- -

<.010

__

.5

1.3

.0

.6

--


47

37

62

57

55

63

SEDIMENT,SUSPENDED(MG/L)

19

9

12

__

9

__

K83

K320

K360

270

FLUO-RIDE,DIS

SOLVED(MG/LAS F)

.30

.30

.20

.20

.30

.30

SEDIMENT,DIS

CHARGE,SUS

PENDED(T/DAY)

3.3

8.6

11 1

__

.61

__

580

1200

150

__

180

--

SILICA,DISSOLVED(MG/LASSI02)

7.5

6.9

7.5

6.9

9.9

7.9

SED.SUSP.

SIEVEDIAM.

% FINERTHAN

.062 MK

100

84

88

74

__

200

220

220

210

210

210

-43-


08158000 COLORADO RIVER AT AUSTIN, TX Continued


MONTH

OCT.

NOV.

DEC.

JAN.

FEB-.

MAR.

APR.

MAY

JUNE

JULY

AUG.

SEPT

TOTAL

WTD. AVG.

YEAR

1982

1982

1982

1983

1983

1983

1983

1983

1983

1983

1983

1983

CHRO- ARSENIC BARIUM, CADMIUM MIUM, COBALT, COPPER, IRON,

DIS- DIS- DIS- DIS- DIS- DIS- DIS SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED

TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/LDATE AS AS) AS BA) AS CD) AS

NOV09... 0815 1 77 <1

FEB15... 0940 1 62 <1

JUN28... 1400 1 78 <1

AUG23... 0845 1 85 <1

MANGA-LEAD, NESE, MERCURY NICKEL,DIS- DIS- DIS- DIS

SOLVED SOLVED SOLVED SOLVED(UG/L (UG/L (UG/L (UG/L

DATE AS PB) AS MN) AS HG) AS NI)

NOV09... <1 12 <.1 <1

FEB15... 1 6 <.1 1

JUN28... 1 4 <.1 <1

AUG23... 2 82 <.1 34

CR) AS

<1

<1

<1

°

SELENIUM,DIS

SOLVED(UG/LAS SE)

<1

1

1

<1

MONTHLY AND ANNUAL MEANS AND LOADS FOR OCTOBER 1982

SPECIFICCONDUCT- DIS- DIS-ANCE SOLVED SOLVED

DISCHARGE (MICRO- SOLIDS SOLIDS(CFS-DAYS) MHOS) (MG/L) (TONS)

4663.8 542 295 3710

3853 572 311 3240

5292 552 300 4290

3086 573 311 2590

3886 554 301 3160

12863 537 292 10100

21595 573 311 18200

40347 562 305 33300

57330 568 309 47800

52128 575 312 43900

37858 574 312 31900

53465 579 315 45400

296366.8 ** ** 248000

812 569 309 **

DISSOLVED

CHLORIDE(MG/L)

48

52

49

52

50

47

52

51

51

52

52

53

**

51

CO) AS

<3

<3

<3

<3

SILVER,DIS

SOLVED(UG/LAS AG)

<1

<1

<1

°

CU) AS FE)

3 <3

5 4

1 <3

9 5

ZINC,DIS

SOLVED(UG/LAS ZN)

7

12

16

4

TO SEPTEMBER 1983

DISSOLVED

DIS- DISSOLVED SOLVED

CHLORIDE SULFATE SULFATE(TONS)

606

540

706

433

520

1650

3030

5500

7950

7340

5320

7610

41200

**

(MG/L) (TONS)

34 432

37 380

35 501

37 305

35 369

34 1180

37 2130

36 3890

36 5610

37 5160

37 3740

37 5340

** 29000

36 **

HARDNESS(CA.MG)(MG/L)

210

220

220

220

220

210

220

220

220

220

220

230

**

220

-44-


08158000 COLORADO RIVER AT AUSTIN, TX Continued

DAY

12 3-45

6789

10

111213 H15

1617181920

2122232425

262728293031

MEAN

SPECIFIC CONDUCTANCE (MICROMHOS/CM AT 25 DEC. C), WATER YEAR OCTOBER 1982 TO SEPTEMBER 1983EQUIVALENT MEAN

OCT NOV DEC JAN FEE MAR APR MAY JUN JUL AUG SEP

525520522523527

537542558532572

557570581572567

578582579589582

595600609611608

609611597581587591

564570526575569

591585586593582

570583600607615

624721622623593

592591587557564

582518541609 ,534

529545530387563

557563576561573

589557515581589

585574550530599

607596533555586

576591582589533549

475508547532537

527582592593559

610603597595596

602600587569591

571573572596648

624593526597596597

527496565511550

565539563574552

555486559522620

568552566562504

557573563501562

557558557

___

561701570563559

553540565558542

538552552534450

500528535542524

546553541499533

551522518541535546

548571565559558

564562570572575

572578587598578

565570573571560

571572574576577

579578577575576

573575578575577

578578577579565

507543560573550

573575573573572

535458518566570

562568562563560565

569576584578538

583572578565572

566574576583577

540517563556541

570564574575570

572601580577575

575577579578579

580578579580579

574569576577575

562563560554569

576571572572576

574576575577580587

578580581585574

579574578543562

567569567558571

567568569572566

572571572574576

567573582571578581

579582583595585

587588577586585

546570580581584

590589575559577

575572571571574

577579581577584

571 586 560 577 549 544 572 561 569 574 572 579

DAY

12345

6789

10

1112131415

1617181920

2122232425

262728293031

MEAN

TEMPERATURE, WATER (DEC. C) , WATER YEAR OCTOBER 1982 TO SEPTEMBER 1983ONCE-DAILY

OCT

23.523.524.524.525.0

25.524.525.025.025.0

24.023.021.025.022.0

22.021.021.021.021.0

21.020.021.020.019.0

18.018.519.021.019.019.5

22.0

NOV

20.520.521.018.518.5

18.518.518.519.019.0

19.019.018.011.016.5

17.016.016.517.016.5

17.018.019.015.516.0

15.014.514.014.515.0

17-. 5

DEC

15.015.515.515.515.0

15.515.515.514.514.5

14.514.014.013.513.5

13.513.013.514.014.0

14.014.014.014.014.0

.__14.013.513.012.012.0

14.0

JAN

12.011.011.011.011.0

11.011 .011.012.012.0

12.012.012.012.012.0

13.012.012.012.011.0

13.513.013.013.013.0

13.513.513.014.514.016.0

12.5

FEE

15.514.513.513.513.5

13.513.513.014.015.0

15.015.015.515.513.5

13.015.515.515.516.5

15.515.014.015.515.5

15.515.515.5

___

14.5

MAR

15.516.018.019.519.0

18.018.018.018.016.5

15.015.516.016.516.0

16.016.516.016.516.5

16.514.014.014.514.0

14.514.014.014.515.016.0

16.0

-45-

APR

16.014.515.015.016.0

16.515.516.517.017.0

18.020.520.520.518.0

17.018.018.021.021 .0

18.518.518.518.518.5

18.018.019.019.519.0

18.0

MAY

19.019.019.518.019.0

19.020.020.019.519.5

19.519.519.519.518.0

17.020.019.018.017.0

17.017.017.020.020.5

20.020.020.020.521.521.0

19.0

JUN

21.021 .020.520.520.5

20.520.520.521.020.0

20.520.020.020.020.0

21.021.021.025.520.5

21.021.021.521.022.0

21.521.520.521.021.5

21 .0

JUL

21.021 .021.521.522.0

23.024.023.023.022.0

21 .522.021.021.020.5

20.020.020.021.521 .0

21.021.523.023.023.0

22.023.023.023.0

22.0

AUG

24.525.523.525.024.5

24.024.524.024.024.0

24.024.024.024.024.0

26.526.025.525.025.5

25.525.025.525.525.0

25.525.025.025.524.524.0

25.0

SEP

24.024.024.023.023.0

21 .521 .522.022.022.0

23.022.023.023.023.5

21 .521.522.023.022.0

20.521.521.021 .021.0

21 .021.021.521.021.5

22.0


08158650 COLORADO RIVER BELOW AUSTIN, TX (Low-flow partial-record station)

LOCATION. Lat 30°12'28", long 97°38'15", Travis County, Hydrologic Unit 12090205, at bridge on Farm Road 973, 0.3 mi northeast of intersection of State Highway 71 and Farm Road 973, 8.8 mi downstream from Govalle Sewage Treatment Plant outfall, and 9.6 mi downstream from gaging station at Austin.

PERIOD OF RECORD. Chemical and biochemical analyses: February 1968 to current year. 1974 to current year.

Pesticide analyses: October


DATE

NOV09...

DEC21...

FEB15...

APR20...

JUN29...

AUG23...

DATE

NOV09...

DEC21...

FEB15...

APR20...

JUN29...

AUG23...

DATE

NOV09...

DEC21...

FEB15...

APR20...

JUN29...

AUG23...

OXYGEN, OXYGEN COLI- STREP- SPE- DIS- DEMAND, FORM, TOCOCCI CIFIC COLOR SOLVED BIO- FECAL, FECAL, HARD- CON- PH (PLAT- TUR- OXYGEN, (PER- CHEM- 0.7 KF AGAR NESS DUCT- (STAND- TEMPER- INUM- BID- DIS- CENT ICAL, UM-MF (COLS. (MG/L

TIME ANCE ARD ATURE COBALT ITY SOLVED SATUR- 5 DAY (COLS./ PER AS (UMHOS) UNITS) (DEC C) UNITS) (NTU) (MG/L) ATION) (MG/L) 100 ML) 100 ML) CAC03)

0955

1312

1125

0930

0745

1000

HARDNESS,


17

43

33

54

63

52


DISSOLVED(MG/L)

348

358

335

317

320

318

660

686

620

595

582

575


41

50

53

51

49

50

SOLIDS ,RESIDUEAT 105DEC. C,SUS

PENDED(MG/L)

8

19

21

2

19

2

DATE

NOV09...

FEB15...

JUN29...

AUG23...

7.3

7.4

7.4

7.5

7.8

7.5


18

19

17

21

22

21

SOLIDS,VOLATILE,SUS

PENDED(MG/L)

4

6

16

<1

13

<1

TIME

0955

1125

0745

1000

20.0

16.5

15.0

21.5

24.0

30.5

SODIUM,DISSOLVED(MG/LAS NA)

53

54

41

36

37

34

NITROGEN,


2.6

3.0

2.0

.58

.45

.62


2

2

1

1

25

5

<1

<1

5

5

SODIUMAD

SORPTION

RATIO

1.8

1.7

1.3

1.1

1.1

1.0

NITROGEN,


.470

.360

.190

.020

.050

.180

BARIUM,DIS

SOLVED(UG/LAS BA)

48

50

77

71

3.0

2.1

15

1.4

7.4

12

POTASSIUM,DIS

SOLVED(MG/LAS K)

7.2

6.8

4.8

3.8

3.8

4.0

NITROGEN,


3.1

3.4

2.2

.60

.50

.80

CADMIUMDIS

SOLVED(UG/LAS CD)

<1

<1

<1

<1

4.8

8.6

5.8

5.2

7.0

4.0


160

160

170

160

150

160

NITROGEN,


4.30

3.60

3.20

1.50

.150

.510


<10

<10

<10

<10

53

90

59

60

84

54


AS S04)

52

55

53

47

46

45

NITROGEN,


6.7

3.3

1.2

1.1

.65

.79


2

2

<1

6

16

4.0

7.3

.9

1.6

.6


68

68

56

56

65

58


11.0

6.90

4.40

2.60

.80

1.30

IRON,DIS

SOLVED(UG/LAS FE)

11

11

4

14

K240

K36

K260

K16

96

110

FLUO-RIDE,DISSOLVED(MG/LAS F)

1.2

.90

.60

.50

.30

.40


2.80

3.10

2.30

.660

.230

.500

1200

500

1200

100

310

270


11

8.0

7.4

5.5

7.2

9.4

CARBON ,ORGANICTOTAL(MG/LAS C)

11

7.5

6.6

4.8

2.8

3.4

180

200

200

210

210

210

-46-

COLORADO RJVET ""SIN

08158650 COLORADO RIVER BELOW AUSTIN. TX--Continued


DATE

NOV09...

FEB15...

JUN29...

AUG23...

LEAD,DISSOLVED(UG/L AS PB)

MANGANESE,DIS

SOLVED(UG/L AS MN)

MERCURYDIS

SOLVED(UG/L AS KG)

SELENIUM,DISSOLVED(UG/L AS SE)

SILVER,DIS

SOLVED(UG/L AS AC)

ZINC,DIS

SOLVED(UG/L AS ZN)

120

44

7

13

12

9

11

3

DATE

FEB15...

AUG23...

TIME

1125

1000

AME-TRYNETOTAL


ATRA- CYAN-ZINE, AZINETOTAL TOTAL(UG/L) (UG/L)

CYPRA- ZINE TOTAL (UG/L)

METHO- PROME-MYL TONE


<2.0

<2.0

.2

PROME- PRO-TRYNE PAZINE PROPHAM SEVIN,TOTAL TOTAL TOTAL TOTAL

DATE (UG/L) (UG/L) (UG/L) (UG/L)

FEB15... <.1 <.10 <2.0 <2.0

AUG23... <.1 <.10 <2.0 <2.0

SIMA- SIME- SIME-ZINE TONE TRYNE

TOTAL TOTAL TOTAL(UG/L) (UG/L) (UG/L)

-47-


08154700 BULL CREEK AT LOOP 360 NEAR AUSTIN, TX

LOCATION.--Lat 30°22'19", long 97°47'04", Travls County, Hydrologlc Unit 12090205, on right bank at downstream side of bridge at Loop 360, 1.0 mi upstream from West Fork Bull Creek and Farm Road 2222, and 7.1 mi northwest of the State Capitol Building in Austin.

DRAINAGE AREA.--22.3 mi 2 .


PERIOD OF RECORD. April 1976 to July 1978 (operated as a flood-hydrograph partial-record station only), July 1978 to current year.

GAGE. Water-stage recorder, concrete control, and crest-stage gage. Datum of gage is 534.08 ft National Geodetic Vertical Datum of 1929 (levels from city of Austin bench mark).

REMARKS. Water-discharge records good. No known regulation or diversion above station. There are two recording rain gages in the watershed. This station is part of a hydrologic research project to study the rainfall-runoff rela tionship for the Austin urban-rural areas.

AVERAGE DISCHARGE.--5 years, 9.58 ft'/s (5.83 in/yr), 6,940 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 13,700 ft'/s May 13, 1982 (gage height, 11.96 ft); minimum daily, 0.02 ft'/s July 30. 1978.

EXTREMES FOR CURRENT YEAR.--Peak discharges above base of 200 ft'/s and maximum (*):

Date Time

May 20 May 21 Aug. 8

151510301415

Discharge (ft»/s>

409244

*724

Gage height (ft)

4.614.105.25

Minimum daily discharge, 0.29 ft'/s Oct. 2-5.

DAY


OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP

12345

6789

10

1112131415

1617181920

2122232425

262728293031

TOTALMEANMAXMINCFSMIN.AC -FT

CAL YRWTR YR

.34

.29

.29

.29

.29

.82

.47

.38

.54

.46

.42

.66

.77

.62

.62

.62

.62

.62

.62

.62

.54

.49

.48

.49

.49

.49

.49

.502.11.1.86

.819.89.53.21.9

.7

.6

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.52.22.0

.9

.7

.82.01.9

13127.45.85.1

18.39 102.31.592.1.29.03.0336

1 982 TOTAL1 983 TOTAL

3.4113

.81

.15

.17203

25602485

4.94.85.04.54.1

3.83.73.73.53.7

4.74.64.44.34.0

3.43.43.43.33.0

3.03.03.03.03.0

3.04.94.33.73.74.0

118.83.835.03.0.17.20236

.30 MEAN

.66 MEAN

107.26.46.05.6

5.25.05.04.94.7

4.64.44.44.44.4

4.14.15.16.86.9

7.07.06.86.45.9

5.75.75.65.45.45.4

175.55.66

104.1.25.29348

7.016.81

5.45.25.05.2

14

118.47.7

2416

1211109.6

19

1613121112

11109.68.98.4

8.17.77.2

298.410.7

245.0.48.50592

MAX 1170MAX 79

7.27.16.8

1514

119.79.0

129.1

8.37.77.77.79.4

2016131327

1615292119

472822202118

486.715.7

476.8.70.81965

MIN .09MIN .29

1715151413

1211111010

9.38.88.27.77.2

6.86.86.66.05.2

5.05.04.64.34.0

3.73.73.73.73.7

242.08.07

173.7.36.40480

CFSMCFSM

3.73.53.12.72.5

2.42.62.42.06.0

114.63.73.44.1

3.93.03.93.9

62

7923161210

8.97.46.76.35.45.7

314.810.2

792.0.46.53624

.31 IN

.31 IN

6.06.05.05.4

29

3424161312

108.98.3

1913

2620151412

109.27.77.27.8

7.05.75.75.34.9

367.112.2

344.9.55.61728

4.274.15

4.64.13.43.23.0

6.54.43.63.12.7

2.72.42.42.73.0

199.56.35.74.9

4.34.03.02.62.2

2.22.12.01.81.41.3

124.14.00

191.3.18.21246

AC -FT 5080AC-FT 4930

1.0.87.81

2.34.1

2.31.5

66126.2

5.04.43.93.32.7

2.62.42.1

145.9

4.83.83.02.72.4

2.02.02.01.81.51.3

170.685.51

66.81.25.28339

1.0.98.79.65.55

.54

.701.52.93.9

2.21.31.0.84.95

.78

.602.0

245.2

2.91.91.81.61.3

1.01.01.01.01.0

66.882.23

24.54.10.11133

-48-


08154700 BULL CREEK AT LOOP 360 NEAR AUSTIN, TX--Continued


PERIOD OF RECORD. Chemical, biochemical, and pesticide analyses: April 1978 to current year. October 1979 to September 1980.

Radiochemical analyses:


DATE

FEE09...28...

MAY11...11...11...

SEP19...19...19...19...

TIME

12450850

002000420506

1215123012451415

STREAM-FLOW, INSTAN TANEOUS (CFS)

SPECIFICCON DUCT ANCE (UMHOS)

PH (STAND ARD

UNITS)

TEMPER ATURE (DEC C)

COLOR(PLAT INUM- COBALT UNITS)

TUR BID ITY

(NTU)

OXYGEN , DIS

SOLVED (MG/L)

OXYGEN , DISSOLVED(PER CENT

SATUR ATION)

OXYGEN DEMAND,BIOCHEM ICAL, 5 DAY (MG/L)

COLI- FORM,FECAL ,0.7 UM-MF (COLS./ 100 ML)

STREP TOCOCCIFECAL,

KF AGAR (COLS. PER

100 ML)

255.7

12816022

11135025352

390615

444302705

431294271219

7.9 8.2

8.0

8.0

12.510.0

10 3502.1

10 70020 180010 35

30 120015 110035 1200

10.210.5

9995

2.9.4

7.0172.6

5.1 6.25.0 5.0

2300 K7

10000

48000 K55

31000

DATE

FEE09...28...

MAY11...11...11...

SEP19...19...19...19...

HARDNESS(MG/L AS

CAC03)

HARDNESS,NONCAR-BONATE (MG/L CAC03)

CALCIUMDISSOLVED (MG/L AS CA)

MAGNESIUM,DIS

SOLVED (KG/L AS MG)

SODIUM,DIS

SOLVED (MG/L AS NA)

SODIUMAD

SORPTION RATIO

POTASSIUM,DIS

SOLVED (MG/L AS K)

ALKALINITYFIELD(MG/L AS

CAC03)

SULFATEDISSOLVED (MG/L

AS S04)

CHLORIDE,DISSOLVED (MG/L AS CL)

FLUO-RIDE,DIS

SOLVED (MG/L AS F)

SILICA,DISSOLVED(MG/L AS

SI02)

160270

240

110

4368

58

19

4771

67

33

1122

17

7.1

1728

53

.6

.8

1.6

.5

1.9 1.6

3.3

2.5

120200

180

93

4463

86

27

2445

70

14

.20

.10

7.5

5.9

DATE

FEE09...28...

MAY11...11...11...

SEP19...19...19...19...


DISSOLVED(MG/L)

222356

__

412

__

156--

SOLIDS,RESIDUEAT 105DEC. C,SUS

PENDED(MG/L)

3703

17402630

81

1090215021501930

DATE

FEB09...28...

MAY11...11...

SEP19...

SOLIDS,VOLATILE,SUS

PENDED(MG/L)

49<1

47250836

402768985

TIME

12450850

00200506

1215

NITROGEN,


.48--

.17

.38

.38

.16

.25

.25

.24


1<1

11

1

NITROGEN,


.020<.020

.030

.120

.020

.040

.050

.050

.060

BARIUM,DIS

SOLVED(UG/LAS BA)

2850

<10057

37

NITROGEN,


.50

.30

.20

.50

.40

.20

.30

.30

.30

CADMIUMDIS

SOLVED(UG/LAS CD)

<1<1

<1<1

<1

NITROGEN,


.060

.110

.100

.160

.090

.050

.030

.040

.050


<10<10

<10<10

<10

NITROGEN,


1.6.29

3.32.8.81

5.01.26.06.0


64

96

4


1.70.40

3.403.00.90

5.001 .206.006.00

IRON,DIS

SOLVED(UG/LAS FE)

32<3

28029

21


.470

.020

.400

.450

.080

.300

.310

.370

.370

101.

36626.

28

4943

-49-


08154700 BULL CREEK AT LOOP 360 NEAR AUSTIN, TX Continued

LEAD,DIS

SOLVED(UG/LAS PB)

MANGANESE,DIS

SOLVED(UG/LAS MN)

MERCURYDIS

SOLVED(UG/LAS HG)

SELENIUM,DIS

SOLVED(UG/LAS SE)

SILVER,DIS

SOLVED(UG/LAS AG)

ZINC,DIS

SOLVED(UG/LAS ZN)


DATE

FEB09...28...

MAY11...11...

SEP19...

202

5 <3

105

<3

DATE

FEB09...

MAY11...

SEP19...

TIME

1245

0020

1215

AME-TRYNETOTAL

<.10



.50




<2.0

<2.0

<2.0

DATE

FEB09...

MAY11...

SEP19...



<2.0

<2.0

<2.0

SEVIN,TOTAL(UG/L)

<2.0

<2.0

<2.0




-50-

I OI O

o r> <J rc

ho r^ r^ 10 r\j -4 fo ( O "D ro o <o ru KI t^ o ro oo o NO to ro T r^ T ro no o -o r^ <^> o o* 10 r*~ oo -.t *

CO CD rt> r^ CD *O f~D f°D CD O* T - T T~ ^~ T "~ T T - "~ r T fvl OJ ^\J rvl <NJ to f-0 -^ ».Y O "O f^- ^*- Ô f*1 ) 'O ~O O O O O O O CD O O O O O O O CJ O O O O O O O O Q O O O O O O O O O O O T- T-

o o o o o o o o o o o o o o o o o o o o o o o o o O O O O O O O O O O

o o r.i o r*- o <o oo o o o o o o o o o o o o o o o o o ci o o o o o o o o

x '_> z ii > LU >-« It

OOOOOOC)

I Of

I i s:I orI OI (.-

II CO

II

O O O O

' J O O 'NJ J <ro vt o r iro to -t >- o

T> O 'i O .a o 'r- <\J -r 'O in CD t-> ro O < -> O

.t .j- 4 -t -t -r

-51-


08155260 BARTON CREEK NEAR CAMP CRAFT ROAD, AUSTIN, TX

LOCATION.- -La t 30°16'12", long 97°49'43", Travis County, Hydrologic Unit 12090205, on left bank about 0.5 mi south of Camp Craft Road, 1.0 mi downstream from bridge on Lost Creek Blvd., and 5 mi west of the State Capitol Building in Austin.

DRAINAGE AREA.- -109 mi 2.


PERIOD OF RECORD. --September 1982 to September 1983.

GAGE. --Water-stage recorder. Altitude of gage is 570 ft, from topographic map.

REMARKS. --Water-discharge records good from 10 to 300 ft 3 /s, poor below 10 3 /s, and fair above 300 ft 3 /s. There are three recording rain gages in the watershed.

EXTREMES FOR PERIOD OF RECORD. --Maximum discharge, 492 ft 3 /s June 14, 1983 (gage height, 8.57 ft); no flow Sept. 1 to Nov. 25, 1982.

EXTREMES FOR SEPTEMBER 1982. --No flow.

EXTREMES FOR CURRENT YEAR. --Maximum discharge, 492 ft 3 /s June 14 at 2330 hours (gage height, 8.57 ft); no flow Oct. 1 to Nov. 25.

DAY


OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP

12345

6789

10

1112131415

1617181920

2122232425

262728293031

TOTALMEANMAXMINCFSMIN.AC- FT

CAL YRWTR YR

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00.000.00.00

.000.00.00

1982 TOTAL1983 TOTAL

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.12

.40

.34

.27

.23

1.36.045.40.00

.000.002.7

9286.

.22

.20

.39

.45

.40

.34

.32

.33

.34

.48

.76

.85

.83

.78

.76

.77

.81

.83

.84

.84

.84

.84

.83

.81

.78

.72

.921.11.11.12.5

23.08.742.5.20

.007.0146

MEAN52 MEAN

3.94.04.45.05.0

4.94.94.85.56.7

7.57.58.8

1414

1620222325

2525252523

201611109.0

10

405.913.1

253.9.12.14805

_25.4

1211101113

1514131934

322624.2235

7248424041

3938363426

252423

...

...

...

77927.8

7210

.26

.271550

MAXMAX 235

2322223996

5241384137

3635353636

6989837071

5550

106119113

183175149142140136

233975.518322.69.80

4640

MINMIN

128118113112106

9892878274

5647464036

3433322928

2828252220

1918171717

...

160253.412817

.49

.553180

CFSM.00 CFSM

1615141312

109.99.18.68.8

3357201311

119.7

109.4

36

2351761036944

393431282522

1132.536.52358.6.34.39

2250

_.23

2222201932

5185603631

27252249

182

92116844641

3631282725

2824191715

...

131243.718215.40.45

2600

ININ 3.17

1413121111

441715129.9

9.79.28.5

1113

2391874133

2825232119

171614131211

684.322.1

918.5.20.23

1360

AC-FTAC-FT

9.68.98.18.07.5

7.112622924

1612109.28.9

8.37.06.16.26.3

6.05.65.24.64.1

3.82.63.44.43.12.1

311.110.0

622.1.09.11617

_18420

1.3.81.58.40.40

.354.75.71 .11.2

5.518147.83.6

.47

.177.2

75169

11561383227

2523211918

696.2823.2169.17.21.24

1380


08155260 BARTON CREEK NEAR CAMP CRAFT ROAD NEAR AUSTIN, TX--Continued


PERIOD OF RECORD.--Chemical, biochemical, and pesticide analyses: February to September 1983.

DATE

FEB09...

MAR01...

TIME

1350

1055

48

18


STREAM-FLOW, INSTAN TANEOUS (CFS)

SPECIFICCON DUCT ANCE (UMHOS)

PH (STAND ARD

UNITS)



TUR BID ITY

(NXU)

OXYGEN, DIS

SOLVED (MG/L)

OXYGEN , DISSOLVED(PER CENT

SATUR ATION)

OXYGEN DEMAND,BIOCHEM ICAL, 5 DAY (MG/L)

COLI- FORM,FECAL,0.7 UM-MF (COLS./ 100 ML)

STREP TOCOCCIFECAL,

KF AGAR (COLS. PER

100 ML)

411

438

7.8

7.9

13.0

14.0

30

.50

9.5

9.5

93

95

.9

.4

K770

K5

K4800

56

DATE

FEB09...

MAR01...

HARDNESS(MG/L AS CAC03)

HARDNESS,

NONCAR-BONATE (MG/L CAC03)


MAGNESIUM,DIS

SOLVED (MG/L AS MG)

SODIUM,DISSOLVED (MG/L AS NA)

SODIUMAD

SORPTION

RATIO

POTASSIUM,DIS

SOLVED (MG/L AS K)

ALKALINITYFIELD(MG/L AS CAC03)


AS S04)


FLUO-RIDE,DIS

SOLVED (MG/L AS F)

200

230

31

37

54

61

16

18

8.0

7.8

.3

.2

1.0

1.0

170

190

32

28

14

15

.20

.20

SOLIDS, SOLIDS,SILICA, SUM OF RESIDUE SOLIDSDIS- CONST!- AT 105 VOLA-SOLVED TUENTS, DEC. C,(MG/L DIS- SUS-

DATE

FEB09...

MAR01...

AS SI02)

5.7

6.7

SOLVED FENDED

233

252

TILE, SUS

PENDED

N1TRO- NITRO- NITRO- NITRO- NITRO- GEN.AM-GEN, GEN, GEN, GEN, MONIA + PHOS- CARBON,

NITRITE N02+N03 AMMONIA ORGANIC ORGANIC PHORUS, ORGANIC TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L

(MG/L) (MG/L) (MG/L) AS N) AS N) AS N) AS N) AS N) AS P) AS C)

28 <.020

<.020

.20

.10

<.060

.100 .30

.50

.40

.040

.010

2.1

1.5

DATE

FEB09...

MAR01...

TIME

1350

1055

ARSENICDIS

SOLVED (UG/L AS AS)

BARIUM,DIS

SOLVED (UG/L AS BA)

CADMIUMDIS

SOLVED (UG/L AS CD)

CHROMIUM,DISSOLVED (UG/L AS CR)

COPPER,DISSOLVED (UG/L AS CU)

IRON,DIS

SOLVED (UG/L AS FE)

6

<3

DATE

FEB09...

MAR01...

LEAD,DIS

SOLVED(UG/LAS PB)

MANGANESE,DIS

SOLVED(UG/LAS MN)

MERCURYDIS

SOLVED(UG/LAS HG)

SELENIUM,DIS

SOLVED(UG/LAS SE)

SILVER,DIS

SOLVED(UG/LAS AG)

ZINC,DIS

SOLVED(UG/LAS ZN)

10

<3

<3

DATE

FEB 09...

TIME

1350

AME-TRYNETOTAL

C.10


C.10

ATRA- CYAN-ZINE, TOTAL

AZINE TOTAL

(UG/L) (UG/L)

C.10




C2.0



FEB 09... <.1 <.10 <2.0 <2.0



C.10

-53-


08155300 BARTON CREEK AT LOOP 360, AUSTIN, TX

LOCATION.--Lat 30e 14'40", long 97°48 1 07rt , Travis County, Hydrologic Unit 12090205, on Loop 360, 0.9 mi west of the intersection of Ben White and Lamar Boulevards, and 4.3 mi southwest of the State Capitol Building in Austin.

DRAINAGE AREA.--116 mi*.


PERIOD OF RECORD.--June 1975 to January 1977 (periodic gage heights and discharge measurements only), February 1977 to current year.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 510.32 ft National Geodetic Vertical Datum of 1929 (State Department of Highways and Public Transportation bench mark).

REMARKS.--Water-discharge records fair except those below 5 ft 3 /s, which are poor. No known regulation or diversions. There are three recording rain gages located in the watershed.

AVERAGE DISCHARGE.--6 years, 34.1 ft 3 /s (3.99 in/yr), 24,700 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 18,100 ft 3 /s May 25, 1981 (gage height, 15.03 ft); no flow for many days each year.

EXTREMES OUTSIDE PERIOD OF RECORD.--The flood of May 28, 1929, was probably the highest since that date (discharge 39,400 ft 3 /s), based on a slope-area measurement of peak flow at a site about 2 mi upstream.

EXTREMES FOR CURRENT YEAR.-rMaximum discharge, 339 ft 3 /s May 21 at 2115 hours (gage height, 5.07 ft), no peak above base of 1,000 ft 3 /8; no flow for many days.



12345

6789

10

1112131415

1617181920

2122232425

262728293031

TOTALMEANMAXM1NCFSMIN.AC- FT

CAL YRWTR YR

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00.000.00.00

.000.00.00


.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.41

.00

.00

.00

.00

.41.014.41.00

.000.00.8

4172.452585.31

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.19

.01

.20.006.19.00

.000.00.4

MEANMEAN

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00.000.00.00

.000.00.00

11.47.08

.00

.00

.00

.00

.00

.00

.00

.00

.23

.00

.00

.00

.00

.001.2

2516116.06.1

5.03.21.71.2.92

.13

.00

.00______

77.682.77

25.00.02.02154

MAX 1780MAX 1 59

.00

.00

.001339

187.45.06.84.9

3.02.01.71.41 .7

1725242324

2220474844

929672656360

845.9027.3

96.00.24.27

1680

MINKIN

5446434340

3532302827

242116137.8

4.11.9.62.16.02

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

466.6015.6

54.00.13.15926

.00 CFSM

.00 CFSM

.00

.00

.00

.00

.00

.00

.00

.00

.00

.89

.9723

.93

.00

.00

.00

.00

.00

.005.9

15998204.51.6

.64

.25

.08

.03

.00

.00

315.7910.2159.00.09.10626

.10 IN

.06 IN

.00

.00

.00

.00

.41

1024142.6.24

.00

.00

.00

.0091

5760483935

2619161 113

27145.02.5.40

515.1517.2

91.00.15.17

1020

1.34.83

.05

.00

.00

.00

.00

19.41.00.00.00

.00

.00

.00

.00

.00

3.232369.93.4

1.4.55.22.06.00

.00

.00

.00

.00

.00

.00

106.193.43

36.00.03.03211

AC-FT 8280AC-FT 5130

.00

.00

.00

.00

.00

.00

.00263.4.97

.02

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

30.39.9826.00

.008.0160

.00

.00

.00

.00

.00

.006.7.62.00.00

.00

.00

.00

.00

.00

.00

.00

.3521111

54238.02.1.23

.00

.00

.00

.00

.00

227.007.57111.00.07.07450

-54-


08155300 BARTON CREEK AT LOOP 360, AUSTIN, TX--Continued

PERIOD OF RECORD. Chemical, biochemical, and pesticide analyses: January 1979 to current year. Radiochemical analy ses: October 1979 to September 1980.

DATE

FEE 23...

DATE

FEE 23...


TIME

0900

STREAM-FLOW,INSTANTANEOUS(CFS)


PH(STANDARD

UNITS)

TEMPERATURE(DEC C)


TURBIDITY

(NTU)

OXYGEN ,DIS

SOLVED(MG/L)

OXYGEN . DISSOLVED(PERCENT

SATURATION)

OXYGEN DEMAND,BIOCHEMICAL,5 DAY(MG/L)

COLI- FORM,FECAL .0.7UM-MF(COLS./100 ML)

STREP TOCOCCIFECAL,

KF AGAR(COLS.PER

100 ML)

3.1 429 8.1 12.0 .80 9.8 93 .4 K4 80

DATE

FEE 23...

HARD- MAGNE- SODIUM POTAS- ALKA- CHLO- FLUO- SILICA, HARD- NESS, CALCIUM SIUM, SODIUM, AD- SIUM, LINITY SULFATE RIDE, RIDE, DIS- NESS NONCAR- DIS- DIS- DIS- SORP- DIS- FIELD DIS- DIS- DIS- SOLVED (MG/L BONATE SOLVED SOLVED SOLVED TION SOLVED (MG/L SOLVED SOLVED SOLVED (MG/L AS (MG/L (MG/L (MG/L (MG/L RATIO (MG/L AS (MG/L (MG/L (MG/L ASCAC03) CAC03) AS CA) AS MG) AS

220


DISSOLVED

: (MG/L)

37


PENDED(MG/L)

57

SOLIDS.VOLATILE,SUSPENDED(MG/L)

18

NITROGEN,


NA)

7.7

NITROGEN,


AS

.2

NITROGEN,


K) CAC03) AS

.9

NITROGEN,


180

NITROGEN,


S04) AS CL) AS F) SI02)

27

NITROGEN .AMMONIA +ORGANICTOTAL(MG/LAS N)

14


.20 6.5


239 .08 .020 .10 .090 .01 .10 .010 1.8

DATE

FEE 23...

TIME

0900

ARSENICDIS

SOLVED(UG/L AS AS)

BARIUM,DISSOLVED(UG/L AS BA)

CADMIUMDIS

SOLVED(UG/L AS CD)



IRON,DIS

SOLVED(UG/L AS FE)

<1 21 <1 <3

DATE

FEE23...

LEAD,DISSOLVED(UG/LAS PB)

0

MANGANESE,DIS

SOLVED(UG/LAS MN)

2

MERCURYDIS

SOLVED(UG/LAS HG)

<.1

SELENIUM,DIS

SOLVED(UG/LAS SE)

1

SILVER,DIS

SOLVED(UG/LAS AG)

<1

ZINC,DIS

SOLVED(UG/LAS ZN)

<3

DATE

FEB 23...

TIME

0900

AME-TRYNETOTAL




PROME-TONE

TOTAL (UG/L)




-55-


08155500 BARTON SPRINGS AT AUSTIN, TX

LOCATION. Lat 30 e 15'48", long 97°46'16", Travis County, Hydrologic Unit 12090205, at ground-water well (YD 58-42-903), on right bank 0.4 mi upstream from Barton Springs Road bridge over Barton Creek, 0.7 mi upstream from mouth, and 1.8 mi southwest of the State Capitol Building in Austin.

DRAINAGE AREA.--Not applicable. Only flow from springs is published for this station.


PERIOD OF RECORD.--November 1894 to April 1917, and October 1918 to February 1978 (discharge measurements only), May 1917 to September 1918 (published as "Barton Creek at Austin, Texas"), and March 1978 to current year.

GAGE.--Water-stage recorder. Datum of gage, at ground-water well (YD 58-42-903), is 462.34 ft National Geodetic Ver tical Datum of 1929. May 1917 to September 1918, nonrecording gage at site 1,000 ft downstream at different datum.

REMARKS. Water-discharge records fair. Entire flow published is springflow from the Edwards and associated limestones in the Balcones Fault Zone. This station is part of an urban hydrologic project to study the ground-water resources in the Austin urban area.

AVERAGE DISCHARGE.--6 years (water years 1918, 1979-83), 54.0 ft 3 /s (39,120 acre-ft/yr).

EXTREMES FOR PERIOD OF RECORD (DISCHARGE MEASUREMENTS ONLY). Maximum measured discharge, 166 ft 3 /s May 10, 1941; minimum measured, 9.6 ft 3 /s Mar. 29, 1956.

EXTREMES FOR PERIOD OF RECORD (1917-18 AND SINCE MARCH 1978).--Maximum daily spring discharge, 108 ft 3 /s June 9-11, 16, 20, 21, 1979; minimum daily spring, 12 ft 3 /s Feb. 25, 1918.

EXTREMES FOR CURRENT YEAR. Maximum daily spring discharge, 87 ft 3 /s June 15; minimum daily spring, 31 ft 3 /s Oct. 22-24, Nov. 20, 21.



12345

678910

1112131415

1617181920

2122232425

262728293031

TOTALMEANMAXMINAC -FT

CAL YRWTR YR

3533333433

3434353433

3333343433

3232333232

3231313132

323233343232

101832.8

3531

2020


3232323232

3232343936

3232323232

3232323231

3132323333

3438424549

102134.0

4931

2030

1746121569

4236373837

3636363536

3738394242

4141424242

4242424242

414343424242

123839.9

4335

2460

MEANMEAN

4445454545

4545434240

3838383838

3838394142

4243434242

424242424242

129141.6

4538

2560

47.8 MAX59.1 MAX

4242424242

4242424243

4343444545

4546464747

4747484848

484847

125344.8

4842

2490

73 MIN87 MIN

4746464850

4949505152

5456575961

6365666869

6969727475

777980808181

194362.7

8146

3850

31 AC-FT31 AC-FT

8080808080

8080797979

7979797978

7878787877

7675747473

7373727171

231277.1

8071

4590

3463042780

7171717070

6969696867

6668707171

7170707274

7779828384

838383838282

229974.2

8466

4560

8181818283

8486858483

8383838487

8685858585

8484848484

8484838382

251283.7

8781

4980

8282818180

8079797978

7878787878

8082848382

8281818180

797978787777

247579.8

8477

4910

7776767677

7776777978

7776767574

7473727170

7070706969

696868676766

226072.9

7966

4480

6666656565

6564646363

6262626160

6059606366

6972717170

6968666664

194764.9

7259

3860

-56-


08155500 BARTON SPRINGS AT AUSTIN, TX Continued


PERIOD OF RECORD.--Chemical, biochemical, and pesticide analyses: December 1978 to current year. Radiochstnical analy ses: October 1979 to September 1980.


DATE

MAR 02...

TIME

1015



PH(STANDARD

UNITS)

TEMPERATURE(DEC C)

51 565 7.4 19.5


<1

BID-ITY

(NTU)

.60

DIS SOLVED (MG/L)

7.0


SOLVED BIO-TUR- OXYGEN, (PER

CENT SATUR ATION)

78

CHEM ICAL, 5 DAY (MG/L)

0.7

STREP-DIS- DEMAND, FORM, TOCOCCI

FECAL, FECAL,

<1

KF AGARUM-MF (COLS.(COLS./ PER100 ML) 100 ML)

K3

DATE

MAR 02...

HARDNESS(MG/LASCAC03)

HARDNESS,





SODIUMAD

SORPTION

RATIO

POTASSIUM,DISSOLVED(MG/LAS K)



AS S04)



260 23 74 19 15 .4 1.2 240 30 26 .20

DATE

MAR 02...


SI02)

SOLIDS,SUM OFCONSTITUENTS ,

DISSOLVED(MG/L.)


PENDED(MG/L)

SOLIDS,VOLATILE,SUS

PENDED(MG/L)

NITROGEN,


NITROGEN,


NITROGEN,


NITROGEN,


NITROGEN .AMMONIA +ORGANICTOTAL(MG/LAS N)



9.3 319 <1 <.020 .90 .060 .44 .50 .030 1.0

DATE

MAR 02...

TIME

1015

ARSENICDIS

SOLVED(UG/L AS AS)

BARIUM,DIS

SOLVED(UG/L AS BA)

CADMIUMDIS

SOLVED(UG/L AS CD)



IRON,DIS

SOLVED(UG/L AS FE)

<1 42 <1 <3

DATE

MAR 02...

LEAD,DIS

SOLVED(UG/L AS PB)

MANGANESE,DIS

SOLVED(UG/L AS MN)

MERCURYDIS

SOLVED(UG/L AS HG)

SELENIUM,DIS

SOLVED(UG/L AS SE)

SILVER,DIS

SOLVED(UG/L AS AG)

ZINC,DIS

SOLVED(UG/L AS ZN)

<1 <1

-57-


08155505 BARTON CREEK BELOW BARTON SPRINGS AT AUSTIN, TX (Reconnaissance partial-record station)

LOCATION.--Lat 30'15'50", long 97°46 f 03 H , Travls County, Hydrologlc Unit 12090205, 800 ft (240 IB) upstream from bridge on Barton Springs Road and 1.8 mi (2.9 km) southwest of State Capitol at Austin.

DRAINAGE AREA. 125.3 ml* (324.5 km 2 ).

PERIOD OF RECORD.--Occasional discharge measurements: January 1975 to current year. Chemical, biochemical, and pea.ti- cide analyses: January 1975 to September 1983. Radiochemical analyses: October 1979 to September 1980.


DATE

MAR 02...

TIME

1000

STREAM-FLOW,INSTAN TANEOUS(CFS)

SPECIFICCONDUCT ANCE(UMHOS)

PH(STAND ARD

UNITS)

TEMPER ATURE(DEC C)

51 571 7.4 19.5


<1

BID-ITY

(NTU)

.60

DIS SOLVED (MG/L)

7.A


SOLVED BIO-TUR- OXYGEN, (PER

CENT SATUR ATION)

82

CHEM ICAL, 5 DAY (MG/L)

.2

.0.7

STREP-DIS- DEMAND, FORM, TOCOCCI

FECAL, FECAL,

K7

KF AGARUM-MF (COLS.(COLS./ PER100 ML) 100 ML)

130

DATE

MAR02...


260

HARDNESS,


25


73

MAGNE SIUM, SODIUM,

SODIUM POTAS- ALKA-

DIS- SOLVED (MG/L AS MG)

20

DIS SOLVED (MG/L AS NA)

15

AD SORP TION

RATIO

.4

SIUM, LINITY SULFATEDIS

SOLVED (MG/L AS K)

1.2

FIELD DIS-(MG/L SOLVEDAS (MG/LCAC03) AS S04)

240 29


26

FLUO- RIDE, DIS

SOLVED (MG/L AS F)

.20

DATE

MAR 02...


SI02)

SOLIDS,SUM OFCONSTITUENTS ,

DISSOLVED(MG/L)


PENDED(MG/L)

SOLIDS,VOLATILE,SUS

PENDED(MG/L)

NITROGEN,


NITROGEN,


NITROGEN,


NITROGEN,



PHOSPHORUS ,TOTAL(MG/LAS P)


9.3 318 <1 <.020 .90 .120 .18 .30 .030 1.2

DATE

MAR 02...

TIME

1000

ARSENICDIS

SOLVED(UG/L AS AS)

BARIUM,DIS

SOLVED(UG/L AS BA)

CADMIUMDISSOLVED(UG/L AS CD)



IRON,DIS

SOLVED(UG/L AS FE)

<1 43 <1 <1 <3

DATE

MAR 02...

LEAD,DIS

SOLVED(UG/L AS PB)

MANGANESE,DIS

SOLVED(UG/L AS MN)

MERCURYDIS

SOLVED(UG/L AS HG)

SELENIUM,DIS

SOLVED(UG/L AS SE)

SILVER,DIS

SOLVED(UG/L AS AG)

ZINC,DIS

SOLVED(UG/L AS ZN)

<1 <1 <1

-58-

08155550 WEST BOULDIN CREEK AT RIVERSIDE DRIVE, AUSTIN, TEX. (Flood-hydrograph partial-record gage)

LOCATION. Lat 30°15'49", long 97°45'17", Travis County, on upstream side of eastbound bridge on Riverside Drive, U.I mi east of the intersection of South Lamar Boulevard and Riverside Drive and 1.2 mi southwest of the State Capitol Building in Austin.

DRAINAGE AREA. 3.12 mi 2 .

PERIOD OF RECORD. August 1975 to current year.

REVISED RECORDS. Open-file report 82-506: 1977 maximum.

GAGE.--Digital water-stage recorder and crest-stage gage. Datum of gage is 434.42 ft NGVD. Prior to March 31, 1977, at site 30 ft downstream at same datum.

REMARKS. Records fair.

EXTREMES FOR CURRENT YEAR. Maximum discharge, 216 ft3 /s May 11 (gage height, 282 ft).

-59-

STA. NO.Gb15555u

STORM RAINFALL

A is, D

RuMGF= RECORC

193: WATER YEAR

WEST dOJLJIN CR

EEK.

AT RIVERSIDE DRIVE/'

AUSTIN/ TEXAS

STORM OF MAY 1C, 19o3

DAT-:

& TIME

MAY 1C

0000

0 2 5 C

1515

2c4G

2245

2250

2300

2303

2310

2315

2320

2325

235o

2335

2340

2545

2350

2355

2*00

MAY

11o uO J

C015

OJ25

0030

DC- 3 5

OC40

0045

0055

0110

0115

01 40

0155

Ot30

GyD'

J0415

0530

0545

G555

2 tGO

------------------------------G A

G

160L

| |

G.G

0.01

0.13

0.1

30.19

0.20

0.24

0.29

0 . 4 G

0.7o

G. 9o

1 .02

1 .03

1 .1

51 .1d

1 .45

1 . =

32.20

2.25

2.23

2.25

2.31

2.35

2.33

2.33

2.34

.i.

m 3 H

2.34

2 . 3^»

2.34

2.34

2.34

2.3*.

c.3*

2.34

? T

ii .

5 4

2. ?*

1

E NUMB

I 1

1

A C C U M

. WEIGHTED

PRiCIP.

IN. O.C

0.01

0.13

0.13

0.19

0.20

0.2t

0.29

0 . « G

0.7o

0.96

1.02

1 .Go

1.15

1.15

1 .4

51.9S

2.2u

2.25

2.25

2.25

2.31

2.33

2.33

2.33

2.34

2.3^

2.34

2.34

2. 5*

2.34

2.34

2.34

2. 34

2.34

2.U

2.3-*

2.34

DISCHARGE

IN

C^S

0.0

0.0

0.0

0.0

0.0

0.5

1 .2

1 .3

2.2

1 1 .0

20.0

39.0

33.0

33.0

27. C

25.0

21 .0

43.0

141 .0

141 .0

161 .0

201 .0

275. C

207.C

209.0

1d5.0

193.0

150.0

142.0

73.0

51 .0

32.0

24.0

S.O

0.7

:.2

0.0

0.0

ACCUM.

RUNOFF

IN.

O.u

O.C

0.0

0.0

0.0

0.0000

0.0001

0.0002

0.0003

0.0007

0.0016

0.0032

0.0047

0.0001

0 .0072

0.0033

0.0091

0.0109

O.u1a2

0.0182

0.0392

0.0517

0.0631

C . 0

7 1 7

0.0303

0.091S

0.1120

0.1244

0.1 420

0.1541

0.1647

0.1733

0.1S57

0.13a7

0.18S9

0.1&90

0.1d90

0.1

3 90


08156700 SHOAL CREEK AT NORTHWEST PARK, AUSTIN, TX

LOCATION.--Lat 30°20'50", long 97°44'41", Travis County, Hydrologic Unit 12090205, at Northwest Park in Austin, 400 ft upstream from Shoal Creek Boulevard bridge, 0.5 mi west of intersection of Burnet Road and Justin Lane, and 5.0 mi north of State Capitol Building in Austin.

DRAINAGE AREA.--6.52 mi".

PERIOD OF RECORD.--March 1975 to current year.

GAGE.--Water-stage recorder. Datum of gage is 661.34 ft National Geodetic Vertical Datum of 1929 (city of Austin bench mark).

REMARKS.--Records fair. The city of Austin diverts water into channel above gage during the summer months from a swimming pool at Northwest Park. There is some diversion into and out of the drainage area by storm sewers. This station is part of a hydrologic project to study the rainfall-runoff, relationship for the Austin urban area. There are two recording rain gages in the watershed upstream from station. Several observations of water temper- ture were made during the year.


EXTREMES FOR PERIOD OF RECORD.--Maximum discharge. 14,600 ft 3 /s May 24, 1981 (gage height, 18.00 ft), from rating curve extended above 1,100 ft 3 /s on basis of slope-area measurement of 14,600 ft 3 /s; no flow for several days each year except 1981 and 1983.

EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum stage since 1885, occurred Apr. 22, 1915 (stage and discharge unknown). Flood on Sept. 9, 1921, was probably lower than the 1915 flood.

EXTREMES FOR CURRENT YEAR.--Peak discharges above base of 750 ft 3 /s and maximum (*):

Date Time Discharge Gage height Date Time

May 10 June 4 June 25

240023451515

Discharge (ft 3 /s)

1 ,250911879

Gage height (ft)

7.356.166.04

Aug. Aug. 19

13300900

Discharg'e (ft 3 /s)

*1,670 882

Gage height (ft)

8.506.05

Minimum daily discharge, 0.01 ft 3 /s Nov. 15-18, 20-22, Dec. 4-9.

DISCHARGE, IN CUBIC FEET PER SECOND. WATER YEAR OCTOBER 1982 TO SEPTEMBER 1983MEAN VALUES

DAY

12345

6789

10

1112131415

1617181920

2122232425

262728293031

TOTALMEANMAXMINCFSMIN.AC-FT

OCT

.05

.04

.04

.03

.03

.17

.60

.08 2.1 .07

.12 1.5 .08 .04 .04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04 9.2 .85 .04 .04

15.60.509.2.03.08.0931

18

NOV

.04 I.92 .05 .04

.04

.04

.04

.03

.04

.03

.02

.02

.02

.01

.01

.01

.01

.08

.01

.01

.01

.42

.17

.17

DEC FEE

12.28 .17 .14 .12

32.95.1018

.01

.1 7

.1965

CAL YR 1982 TOTAL 1028.17 WTR YR 1983 TOTAL 1246.12

.08

.05

.07

.01

.01

.01

.01

.01

.01

.44

1 .8.33.17.17.17

.17

.17

.17

.16

.12

.12

.12

.12

.12

.12

.371 .4.28.17.12.37

7.44.241 .8.01.04.0415

MEANMEAN

4.5.43.37.37.37

.32

.32

.32

.32

.32

.32

.32

.32

.32

.28

.28

.282.7.64.20

.40

.17

.14

.14

.14

.14

.14

.14

.14

.14

.14

15.13.494.5.14.08.0930

2.823.41

.14

.15

.152.86.7

.28

.17

.1733

.41

.19

.15

.12

.1221

.32

.18

.14

.12

.49

.15

.11

.10

.10

.10

.10

.10

.10__.>_ __---

67.662.42

33.10.37.39134

MAX 392MAX 104

MAR

.10

.10

.10 9.7 .20

.12

.17

.17 9.9 .24

.17

.20

.20

.2450

301 .3.79

9.52.3

.81

.69692.01 .4

401 .91 .41.4

131.5

248.608.02

69.10

1.231 .42493

MIN .00 MIN .01

APR MAY JUN JUL

1 .11.01 .11.41 .4

1 .411

.68

.68

.61

.61

.61

.54

.48

.48

.42

.42

.37

.42

.42

.48

.37

.28

.28

.28

.20

.20

.17

.12

.12---

27.64.9211

.12

.14

.1655

CFSMCFSM

.12

.13

.12

.12

.08

.08

.08

.08

.1226

51.60.53.43

5.1

.61

.6013

.7779

591.5.96.80.75

.65

.48

.48

.48

.541 .8

246.017.94

79.08

1.221.40488

.43 IN

.52 IN

.59

.54

.542147

351 .9.93.86.82

.82

.72

.75491.3

13.71.38.32.42

.37

.32

.47

.3147

.79

.29

.42

.26

.17

227.007.57

49.17

1.161.29450

5.87 AC-FT7.11 AC-FT

.17

.16

.12

.08

.18

.26

.15

.14

.10

.10

.07

.07

.086.0

11

36.42.21.13.1 1

.10

.10

.10

.08

.08

.08

.08

.08

.08

.08

.07

56.481 .82

36.07.28.32112

20402470

19

AUG

.07

.07

.07

.78

.12

.11104

1 .4.22

.15

.15

.15

.15

.15

.11

.10

.1055

.36

.15

.12

.15

.15

.10

.10

.12

.12

.15

.20

.20

183.825.93104.07.91

1.05365

SEP

.17

.13

.12

.12

.12

.08

.21

.21115.9

.38

.08

.08

.22

.12

.10

.102077

.51

.12

.12

.12

.12

.12

.20

.10

.08

.08

.08

117.793.93

77.08.60.67234

-61-

o o o t_i o o c.'-» O C.i C' C t

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1 C5 O 0 0 O 0 O 0 0 0 0 0 O 0 0 -D O II 1 II 1 II

1 O O O O O O O O CJ O O --t O- \f\ -4 O OO 1

I txj r>- ri o N. in T 10 ^ r\i » I 1 ro rvi fvj r- » r- » 1 1 1 1 1 1 1 1

1 I 10 no r2j r> <*>» (^ ry«. rvi *o ro ô *f -t -t m i^"i IA1 OO<-1OC>OO<-T-,-«-«-«-T-«-T-T-

i f\i rvi r\( (NJ rvj '\j r\( rj .*\| r\( r\( fvi rvi rvj r\( rvi «j 1 1 i 1 1 1 1 1 i

1 1 1 1 i 1 i 1 1 1 1 1 i 1 i 1 i i 1 1 1

i1 1 I

1 1 1 1 1 I

1 1 i 1

1 1 1

i 11 1 I

1 i 1 1 1 1 i i 1 I 1 I

1 1 1

i 1 1 1 1 1 1 1 1

II '1

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1

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1 O O 0 {>- r> > O- -4 i ~S 4 -J- * -» -t -t tI ( ^ rvi rvi r\i fvj r*j r\i t^\ HI to r^\ to ?s\ p/-i f^ f-i ro

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1 1 1I

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1 «1 O ' J O O O O o O o o O O C") »- T »- rj

i i n n

-63-


08156800 SHOAL CREEK AT 1 2TH STREET, AUSTIN, XX (Flood-hydrograph partial-record station)

LOCATION. --Lat 30°16'35", long 97°45'00", Travis County, Hydrologic Unit 12090205, at downstream side of bridge on 12th Street and 0.6 mi west of the State Capitol Building in Austin.

DRAINAGE AREA. --12. 3 mi 2 .


PERIOD OF RECORD. April 1975 to current year. Periodic discharge measurements only: November 1974 to current year.

GAGE. --Flood-hydrograph recorder and crest-stage gage. Datum of gage is 455.33 ft National Geodetic Vertical Datum of 1929.

REMARKS. Additional storm rainfall-runoff data for this site can be obtained from the latest report, "Hydrologic Data for Urban Studies in the Austin, Texas Metropolitan Area, 1983." Two recording rain gages are located in the water shed above this site.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 16,000 fH/s May 24, 1981 (gage height, 23.22 ft).

EXTREMES FOR CURRENT YEAR. --Maximum discharge, 1,980 ft 3 /s Aug. 8 at 1430 hours (gage height, 10.72 ft).


PEPIOD OF RECORD. Chemical, biochemical, and pesticide analyses: January 1975 to current year. January 1975 to current year. Radiochemical analyses: October 1979 to September 1980.

Water temperatures:


DATE

FEE28...

MAR23...

MAY20.. .20...

AUG08...

SEP07...

DATE

FEE28...

MAR23...

MAY20...20...

AUG08...

SEP07...

TIME

0935

1030

14451500

1303

1640


250

72

STREAM-FLOW ,INSTANTANEOUS(CFS)

.58

300

258760

403

16

HARDNESS,


118

18

SPECIFICCONDUCTANCE(UKHOS)

649

174

186165

62

219


87

26

PH(STANDARD

UNITS)

8.1

7.6

__

--

.

7.8

MAGNESIUM,DIS

SOLVED(MG/LAS MG)

7.4

1.6

TEMPERATURE(DEC C)

9.5

11.0

__--

--

26.0

SODIUM,DIS

SOLVED(MG/LAS NA)

32

3.2

COLOR(PLAT-IUUM-C OB ALTUNITS)

<1

50

__--

--

70

SODIUMAD

SORPTIONRATIO

.9

.2

TURBIDITY

(NTU)

9.9

160

__--

--

200

POTASSIUM,DIS

SOLVED(MG/LAS K)

2.9

2.1

OXYGEN,DIS

SOLVED(MG/L)

11 .9

__--

--

7.6


130

54

OXYGEN, DIS

SOLVED(PERCENT

SATURATION)

106

--

__--

--

94


AS S04)

110

17

OXYGEN DEMAND,BIOCHEMICAL,5 DAY(KC/L)

.4

3.1

37--

7.8

14


64

5.0

COLI- FORM,FECAL,0.7UM-MF(COLS./100 ML)

2000

11000

K190000--

940000

69000

FLUO-RIDE.DIS

SOLVED(MG/LAS F)

.30

<.10

STREP TOCOCCIFECAL,

KF AGAR(COLS.

PER100 ML)

2100

78000

490000--

640000

460000

SILICA,DISSOLVED(MG/LASS102)

.5

3.7

86 27 31 2.1 .4 4.0 59 26 15 .10 4.9

DATE

FEB28...

MAR23...

MAY20...20...

AUG08...

SEP07...


DISSOLVED(MG/L)

382

91

__

127


PENDED(MG/L)

12

192

____

385

SOLIDS,VOLATILE,SUS

PENDED(MG/L)

. <1

64

__ '

__

129

NITROGEN,


__

.35

.27__

.35

.80

NITROGEN,


<.020

.050

.230__

.050

.100

-64-

NITROGEN,


<.10

.40

.50__

.40

.90

NITROGEN,


.080

.180

.670__

.230

.270

NITROGEN,


.42

1.1

8.1__

3.6

1.2


.50

1.30

8.80__

3.80

1.50


.050

.290

.700__

1.10

.440

CARBON,ORGANICTOTAL(MG/LAS C)

1.9

10

29__

28

15


08156800 SHOAL CREEK AT 12TH STREET, AUSTIN, TX Continued


DATE

FEB28...

MAR23...

MAY20...

SEP07...

TIME

0935

1030

1445

1640

ARSENICDIS

SOLVED(UG/L AS AS)

BARIUM,DIS

SOLVED(UG/L AS BA)

CADMIUMDIS

SOLVED(UG/L AS CD)



IRON,DIS

SOLVED(UG/L AS FE)

<112

1

60

17

26

23

<1

<1

<1

<1

10

<10

<10

10

<3

63

59

54

DATE

FEB28...

MAR23...

MAY20...

SEP07...

LEAD,DIS

SOLVED(UG/LAS PB)

MANGANESE,DIS

SOLVED(UG/LAS MN)

MERCURYDIS

SOLVED(UG/LAS HG)

SELENIUM,DIS

SOLVED(UG/LAS SE)

SILVER,DIS

SOLVED(UG/LAS AG)

ZINC,DIS

SOLVED(UG/LAS ZN)

<.1 <.1

5

3

11

10

DATE

MAR23...

MAY20...

TIME

1030

1500

AME-TRYNETOTAL



10

CYPRA-ZINETOTAL(UG/L)

METHO- PROKE-MYL TONE


<2.0 .1

.4

DATE

MAR23...

MAY20. . .


PROPHAK TOTAL <UG/L)

<2.0

SEVIN. TOTAL

SIMA-ZINE

TOTAL

SIME- SIME-TONE TRYNETOTAL TOTAL

(UG/L) (UG/L) (UG/L) (UG/L)

<2.0 .20

-65-

-99-

I o C j C.) o (~> O 00000 O oi * » c> f - c.' C.j <-> cj o ci » i.; c_> ui 01 * * iyi 0-4 r\j r

O X' r\jo c o O -< 4 » » o O cj

ro ro » O o *- li

» to o v/>

» » O C , CJ l_J O O O O CJ O O O O O O

* O -o fa -~-i O ' n >_n 4 - t~" f\J r>J » O C J f j O

CJ CJ i.) O O OO Ci O O O O CJ rj O

-» CJ C. O O O O O i.J

CJ O l_> C"1 O O O O

-» -» O LJ C.} O CJ O

CJ C_l O O O O O O O O O C"i *^J >> *O

O O a O O CJ O (J l_> O O O O O OO CJ O O

i>j ra *- o oo cr. »o «o t-y -M -»'O fo ro Ur4 Ul OO (.-J Oi tx» \J IX)

O O O t_> O O O O CJ O O

-f~ IV O O O O O

ro O V IM fNJ W O

CJ CJ O O C C- C> CJ CJ C O O O C) C.

ro r\_« r\j * ^ ^ * * ~^ * c.' Cj C-* CJ d

Cn O; U. O -o IN- V C1 <J- -t" r\J -» C_. <. CX

C' O C-> O O <_ O O O O C' O O

O O O O O O O O O O CJ O Cj

(_3 O O O O O O O O CJ

O O O O O O O O O O CC- O CJ CJ O C.) O O O CJrv -» o O o o O O O O

*3 IJ<_ o

n *i O2- o c: Tl 3

nj

-O N- -T I \l O >n -.f u"» -O -O

O O O C 5 O II

o o o o o r> o o o o o o o o o o o o

o o o o o o o o o o o o o o o o o o r.i

o o O o o N. o rvi «o m T- m <r, m t\i o-> T T- O 10 m ,». o r.J

r> f\i N o o ir> o if o IA rj «.:> o O r- O * "> u) in r\j r-

O TT OO _ > nio >-< rv:

i'M »M (M r-J n (\l fVI fM r\l

-67-


08158050 BOGGY CREEK AT U.S. HIGHWAY 183, AUSTIN, TX

LOCATION.--Lat 30°15'47", long 97°40'20", Travis County, Hydrologic Unit 12090205, on U.S. Highway 183, 1.6 mi south of the intersection of Webberville Road and U.S. Highway 183, 4.1 mi east of the State Capitol Building in Austin, and 0.7 mi upstream from mouth.



PERIOD OF RECORD. January to July 1975 (periodic discharge measurements only), August 1975 to June 1977 (operated as a flood-hydrograph partial-record station only), June 1977 to current year.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 411.29 ft National Geodetic Vertical Datum of 1929 (levels from city of Austin bench mark).

REMARKS.-- Water-discharge records fair. No known regulation or diversions. The station is part of a hydrologic research project to study the rainfall-runoff relationship for the Austin urban area. Station is equipped with an automatic water-quality sampler. There is a recording rain gage in the watershed.

AVERAGE DISCHARGE. 6 years (water years 1978-83), 6.72 ft 3 /s (6.97 in/yr) 4,870 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 6,100 ft 3 /s May 23, 1975 (gage height, 17.03 ft, from floodmark), from rating curve extended above 500 ft 3 /s on basis of slope-area measurement of peak flow; no flow at times each year.

EXTREMES FOR CURRENT YEAR.--Peak discharge above base of 1,500 ft 3 /s and Maximum (*):

Date

Feb. 9May 1 1 May 20

Time

1100 0100 1530

Discharge (ft 3 /s)

1 ,610 2,130

*2,500

Gage height (ft)

a/ 10.5 a/ 11.3 a/ 1 1 .8

Date

May 21 June 5 Aug. 8

Time

090001001400

Discharge (ft 3 /s)

1 ,6102,3402.130

a/ Adjusted for draw down.

Minimum daily discharge, no flow for many days.

Gage height (ft)

a/ 10.5a/ 11.6a / 11.3

DISCHARGE, IN CUBIC FEET PER SECOND. WATER YEAR OCTOBER 1982 TO SEPTEMBER 1983KEAN VALUES

DAY

12345

6789

10

1112131415

1617181920

2122232425

262728293031


CAL YRWTR YR

OCX

.00

.00 29

.00 15

.00

.00

.005.09.6.71

13

.4911 152.2 12.72 6.68

.01

.00 3

.00

.00

.00

.00

.00

.00 24

.00 17

.00 1

.00 73

.00 14

.6322

.34

.22

66.60 2122.15 7

22.00.16.19132


NOV

.00

.40

.34

.34

.34

.05

.00

.00

.00

.4

.82

.00

.2

.06

.00

.00

.00

.00

.2

'.28

.18

.12

...

.73

.0973

.00

.54

.60422

13202552

DEC

.12

.1825

.86

.65

.40

.34

.37

.405.3

6.9.31.21.18.15

.12

.10

.12

.10

.11

.10

.10

.09

.09

.10

.1811

.31

.15

.21

.34

54.591.76

25.09.13.16108

.45 MEAN

.90 MEAN

JAN

39.98.47.40.31

.28

.23

.23

.18

.17

.17

.17

.17

.17

.17

.17

.1424112.6

6.6.86.86.98.51

.37

.28

.23

.23

.28

.28

92.492.98

39.14.23.26183

3.626.99

FEB

.28

.18

.37

.67127

1.5.98.75

1533.6

2.31.81.81.5

35

1 .91.31.2.98

1.3

.98

.92

.92

.92

.86

.80

.86

.86___......

344.5312.3153.18.94.98683

MAX 239MAX 21£

MAR

.86

.86

.86323.4

2.72.22.0

182.6

2.22.33.02.9

83

707.25.3

191 1

4.42.7

1656.45.4

1003.32.11 .8

101.1

573.5818.5165.86

1.411.631140

MINMIN

APR

.75

.55

.55

.55

.55

.44

.40

.47

.40

.44

.40

.40

.34

.28

.31

.34

.31

.23

.23

.17

.31

.28

.17

.09

.23

.17

.09

.09

.11

.14

...

9.79.33.75.09.03.0319

.00 CFSM

.00 CFSM

MAY

.14

.12

.06

.06

.06

.06

.08

.08

.44

.35

1775.23.83.7

17

3.12.44.74.1

216

1121.71.1.87.65

.61

.56

.64

.75

.67

.90

558.9018.0216.06

1.371.591110

.28

.53

JUN

.70

.68

.62

.66175

131 .5.84.64.55

.48

.48

.433.21.1

5.2.69.35.36.31

.28

.31

.36

.4318

.87

.40

.34

.42

.38---

228.587.62175.28.58.65453

IN 3.75IN 7.25

JUL

.34

.30

.25

.25

.32

.38

.33

.28

.27

.27

.21

.20

.231412

732.1.96.62.47

.60

.55

.45

.24

.36

.18

.20

.32

.21

.21

.21

110.313.56

73.18.27.31219

AC-FT 2620AC-FT 5060

AUG

.10

.05

.10

.74

.96

1.8.78

1793.01.6

1.11 .1.87.70

1.1

.60

.65

.64171.2

.80

.85

.43

.48

.43

.89

.41

.05

.36

.03

.00

217.827.03179.00.54.62432

SEP

.00

.00

.00

.00

.00

.001.01.21 .61.1

.76

.17

.02

.63

.54

.04

.0012572.1

.84

.70

.70

.70

.60

.31

.30

.25

.24

.18---

82.982.77

57.00.21.24165

-68-


08158050 BOGGY CREEK AT U.S. HIGHWAY 183, AUSTIN, TX Continued


PERIOD OF RECORD.--Chemical, biochemical, and pesticide analyses: January 1975 to current year, ses: October 1979 to September 1980.

Radiochemical analy-


DATE

FEB28...

MAR04...

MAY20...20...20...20...20...20...

DATE

FEB28...

MAR04...

MAY20...20...20...20...20...20...

TIME

1320

1300

144014551510152515401555

220

100

6969


1.2

106

260853114011001010931

HARDNESS,


63

21

CIFICCONDUCTANCE(UMHOS)

590

238

207202170172172143


73

36

SPE-

PH (STAND- TEMPER-ARD ATURE

UNITS) (DEG C)


TUR BID ITY

(NTU)

OXYGEN , DIS

SOLVED (MG/L)

OXYGEN,DISSOLVED(PER CENT

SATUR ATION)

OXYGENDEMAND,BIOCHEM ICAL, 5 DAY (MG/L)

COLI-FORM,FECAL,0.7 UM-MF (COLS./ 100 ML)

STREPTOCOCCIFECAL,

KF AGAR (COLS . PER

100 ML)

8.4

8.4

7.7 7.7

18.0

18.5 25

2.4

480

19.7

7.8

212

86

40 120040 1200

.8

17

373438201517

K63 K68

62000 97000

K290000 K1 900000K290000 K1 900000K280000 900000K280000 900000

__K230000 K1 400000

HARD NESS (MG/L AS

CAC03)

HARD NESS,



MAGNE SIUM, DIS

SOLVED (MG/L AS MG)

"SODIUM, DIS

SOLVED (MG/L AS NA)

SODIUM AD

SORP TION

RATIO

POTAS SIUM, DIS

SOLVED (MG/L AS K)

ALKA LINITY FIELD (MG/L AS

CAC03)


AS S04)


FLUO- RIDE, DIS

SOLVED (MG/L AS F)


2525

9.9

2.4

1.7 1.7

33

9.8

7.0 7.0

1.0

.4

.4

.4

2.6

2.9

3.6 3.6

160

79

6666

83

22

1414

43

13

5.4 5.4

.30

.20

.20

.20

4.6

6.0

6.8 6.8

DATE

FEB28...

MAR04...

MAY20...20...20...20...20...20...


DISSOLVED(MG/L)


PENDED(MG/L)

SOLIDS,VOLATILE,SUS

PENDED(MG/L)

NITROGEN,


NITROGEN,


NITROGEN,


NITROGEN,


NITROGEN,





345

140

8

564

103103 468

468396396

.21

.35

.35

.35

.35

.35

<.020

.190

.050

.050

.050

.050

.050

.40

.40

.40

.40

.40

.40

.120

.500

.610

.610

.470

.470

.380

.48

2.4

2.1 2.1 1.8 1.8

3.2

.60

2.90

3.60

.040

.950

.500

.500

.770

.770

.930

2.2

29

53536161

43

-69-


08158050 BOGGY CREEK AT U.S. HIGHWAY 183. AUSTIN, TX Continued


DATE

FEB28...

MAR04...

MAY20...20...20...

TIME

1320

1300

144014551555

ARSENICDIS- SOLVED (UG/L

BARIUM,DIS-

SOLVED(UG/L

CADMIUMDIS-

SOLVED (UG/L

CHRO-MIUM,DIS-SOLVED(UG/L

COPPER, DIS- SOLVED (UG/L

83

36

200200

<100

IRON,DIS

SOLVED(UG/L

AS AS) AS BA) AS CD) AS CR) AS CU) AS FE)

<3

76

707080

DATE

FEB28...

MAR04...

MAY20...20...20...

LEAD,DIS

SOLVED(UG/L AS PB)

MANGANESE,DIS

SOLVED(UG/L AS MN)

MERCURYDIS

SOLVED(UG/L AS HG)

SELENIUM,DIS

SOLVED(UG/L AS SE)

SILVER,DIS

SOLVED(UG/L AS AG)

ZINC,DIS

SOLVED(UG/L AS ZN)

6

8

101010

DATE

MAR04...

MAY20...20...

TIME

1300

14551510

AME-TRYNETOTAL



.30

.30




<2.0 1.7

2.4 2.4



MAR04... <.1 <.10 <2.0 <2.0

MAY20... <.1 <.1020... <.1 <.10



.10


-70-

-u-

c> o o o c io f _> < j o n c' c ci c. c.

ru oO-.' C

f\J CJ

-> «.> C/ O-

o o o o

1 Vi » O Cj

-»-»-»-»-> oooo

t 01 tr4 IV O VI -» O O

o :L c;H. -H ISTJ in

-J f-J l\ )[_ * <7- INJ U' -T *Nl HJ » *^lo *~ O r\> » -si O O U1 CJ *^ O IVI

C.t O O O O i D O O t } O O O OCJ O f J O CJ O O O O O CJ

f\j (\J INJ I\J » » ' O O CD Cj

O OJ O O ->J O4 O ><1 ->J O O-

II O CJ C. C) C. O CJ O O O OC' O O O O O O CJ C' CJO O C: O CJ C. CJ O O O CJ C. O O CJ O

_»-»_>_»_»-».-»-»->-»-» L i C O C, O O O CJ C' O C CJ C, CJ O C; O CJ O O C C) C, O C- C, Oixi !.«. ^j o vi * - 01 01 INJ » o -4} u> î O- vi r- v/4 <sj » -» cj CJ cj cj cj o o c_> o o o r j cj o c.) o o

z. oC) C

O CJ O O

-2L-

l_i O O O CJ O O O O O (1 O O O O O OCo -vl (_v O v/> u> <_n 4. t- 4 f- o-i u. l^' C.-J I'J L-J<-H rj v/4 cj *- ro i_i * - \s-i » o ui 4. L»J ivj » o

rj <Ji » v-n » » (o r\j ~o m OJ >-fi *^ *^ ijJ O i^ *^ o

O c«> O O O O O O O O O O CD O C.I O O C) O

i o o o c_> o o o c.)o o o o o o c., o

i r\j rvi rv> ru iv> rv> rvi iv> rvi rv rv, ivi rv> rvi rv) iv. i\j rv: iv

i O- » O v/- OJ O u f- CJ t- -vl » wi o *- <; U' -»

i: r->o c:~ll .2

08158100 WALNUT CREEK AT FARM ROAD 1325 NEAR AUSTIN, TEX. (Flood-hydrograph partial-record gage)

LOCATION. Lat 30°24'35", long 97°42,41", Travis County, on downstream side of bridge on Farm Road 1325 and 9.5 mi north of the State Capitol Building in Austin.


PERIOD OF RECORD.--May 1975 to current year.

GAGE. Digital water-stage recorder and crest-stage gage. Datum of gage is 670.62 ft NGVD.

REMARKS.--Records fair. No storms were analyzed for this station for the 1983 water year.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 15,000 ft3 /s May 24, 1981 (gage height, 19.46 ft).

EXTREMES FOR CURRENT YEAR.--Maximum discharge, 1,060 ft3 /s Aug. 8 (gage height, 8.95 ft).

-73-


08158200 WALNUT CREEK AT DESSAU ROAD, AUSTIN, TX (Flood-hydrograph partial-record station)

LOCATION.--Lat 30 0 22'30". long 97°39'37", Travis County, Hydrologic Unit 12090205, on downstream side of bridge on Dessau Road and 8.4 mi northeast of the State Capitol Building in Austin.

DRAINAGE AREA.--26.2 mi 2.



GAGE.--Digital water-stage recorder and crest-stage gage. Datum of gage is 553.44 ft National Geodetic Vertical Datum of 1929.

REMARKS. Additional storm rainfall-runoff data for this site can be obtained from the report "Hydrologic Data for Urban Studies in the Austin, Texas Metropolitan Area, 1983". Two recording rain gages are located in the watershed.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 21,600 ft 3 /s May 25, 1981, gage height, 26.20 ft.

EXTREMES FOR CURRENT YEAR. Maximum discharge, 3,110 ft 3 /s Aug. 8 at 1500 hours (gage height, 13.25 ft).


PERIOD OF RECORD. Chemical, biochemical, and pesticide analyses: October 1979 to current year.


OXYGEN, OXYGEN COLI- STREP-

DATE

FEE28...

MAR04...

DATE

FEE28...

MAR04...

TIME

1045

1415


270

220


6.9

27

HARDNESS,


51

40


642

519


100

81

PH(STANDARD

UNITS)

8.4

8.0

MAGNESIUM,DIS

SOLVED(MG/LAS MG)

5.0

4.2

TEMPERATURE(DEC C)

11.0

17.5

SODIUM,DIS

SOLVED(MG/LAS NA)

25

20


<1

10

SODIUMAD

SORPTIONRATIO

.7

.6

TURBIDITY

(NTU)

.70

100

POTASSIUM,DIS

SOLVED(MG/LAS K)

1.9

2.3

OXYGEN,DIS

SOLVED(MG/L)

16.8

8.4


220

180

DIS SOLVED(PERCENT

SATURATION)

156

91


AS S04)

51

40

DEMAND, BIOCHEMICAL,5 DAY(MG/L)

.6

5.1


42

32

FORM, FECAL,0.7UM-MF(COLS./100 ML)

96

2600

FLUO-RIDE,DIS

SOLVED(MG/LAS F)

.30

.30

TOCOCCI FECAL,

KF AGAR(COLS.

PER100 ML)

K71

3400


SI02)

2.8

5.9

SOLIDS, SOLIDS,SUM OF RESIDUE SOLIDSCONSTI- AT 105TUENTS, DEC. C,

DIS- SUS-SOLVED PENDED

DATE

FEB28...

MAR04... 294

360

VOLA TILE, SUS PENDED

(MG/L) (MG/L) (MG/L) AS N)

NITRO- NITRO- NITRO- NITRO- NITRO- NITRO- GEN.AM-GEN, GEN, GEN, GEN, GEN, MONIA + PHOS- CARBON,

NITRATE NITRITE N02+N03 AMMONIA ORGANIC ORGANIC PHORUS, ORGANIC TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L

158 26

1.4

1 .3

AS N)

.020

.040

AS N)

1.4

1.3

AS N) AS N)

.110

.180

.89

1.4

AS N)

1.00

1.60

AS P)

.070

.410

AS C)

2.2

8.0

-74-


08158200 WALNUT CREEK AT DESSAU ROAD, AUSTIN, TX Continued


ARSENICDIS

SOLVED(UG/L AS AS)

BARIUM,DIS

SOLVED(UG/L AS BA)

CADMIUMDIS

SOLVED(UG/L AS CD)



IRON,DIS

SOLVED(UG/L AS FE)

TIME DATE

FEB28... 1045 1 64 <1 <10 2 <3

MAR04... 1415 1 54 <1 <10 3 14

LEAD, DIS

SOLVED (UG/L AS PB)

MANGA NESE, DIS

SOLVED (UG/L AS MN)

MERCURY DIS SOLVED (UG/L AS HG)

SELE NIUM, DIS SOLVED (UG/L AS SE)

SILVER, DIS

SOLVED (UG/L AS AG)

ZINC, DIS

SOLVED (UG/L AS ZN)DATE

FEB28... <1 6 <.1 <1 <1 4

MAR04... 6 2 <.1 1 <1 9

ATRA- ATRA- CYAN- CYPRA- METHO- PROME-AME- TONE ZINE, AZINE ZINE MYL TONE

TIME TRYNE TOTAL TOTAL TOTAL TOTAL TOTAL TOTALDATE TOTAL (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L)

MAR 04... 1415 <.10 <.10 <.10 <.10 <.10 <2.0 .3

PROME- PRO- SIMA- SIME- SIME-TRYNE PAZINE PROPHAM SEVIN, ZINE TONE TRYNETOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL

DATE (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L)

MAR 04... <.1 <.10 <2.0 <2.0 <.10 <.10 <.1

-75-

08158300 FERGUSON BRANCH AT SPRINGOALE ROAD, AUSTIN, TEX. (Flood-hydrograph partial-record gage)

LOCATION. Lat 30°19'53", long 97°39'12", Travis County, on downstream side of culvert on Springdale Road and 6.5 ml northeast of the State Capitol Building in Austin.


PERIOD OF RECORD. May 1975 to current year.

GAGE.--Digital water-stage recorder and crest-stage gage. Datum of gage is 509.64 ft NGVD.

REMARKS.--Because of insufficient data, no storms were analyzed for this station for the period of record.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge 1,040 ft3 /s May 21, 1979 (gage height, 8.60 ft).

EXTREMES FOR CURRENT YEAR Maximum discharge occurred on May 20, 1983. Gage height and discharge were not determined.

-76-

08158380 LITTLE WALNUT CREEK AT GEORGIAN DRIVE, AUSTIN, TEXAS (Flood-hydrograph partial-record gage)

LOCATION.--Lat 30°2ri5", long 97°4r52", Travis County, on upstream side of bridge on Georgian Drive and 6.0 miles north of the State Capital Building in Austin.

DRAINAGE AREA. 5.22 nri 2.

PERIOD OF RECORD. February to September 1983.


REMARKS. Because of insufficient data, no storms analyzed for this station.

EXTREMES FOR CURRENT YEAR. Maximum discharge 1,350 ft 3/s June 4 (gage height,

9.58 ft).

-77-


08158600 WALNUT CREEK AT WEBBERVILLE ROAD, AUSTIN, TX

LOCATION.--Lat 30e 16'59", long 97°39'17", Travis County, Hydrologic Unit 12090205, on left bank 190 ft downstream from bridge on Farm Road 969, 0.8 mi downstream from Little Walnut Creek, 2.8 mi upstream from Colorado River, 5.2 mi east of the State Capitol Building in Austin, and 2.8 mi upstream from mouth.

DRAINAGE AREA.--51.3 mi 2.



GAGE.--Water-stage recorder. Datum of gage is 425.96 ft National Geodetic Vertical Datum of 1929.

REMARKS.--Water-discharge records fair. No known regulation or diversion. Station is part of hydrologic research project to study rainfall-runoff relation for urban areas. Five recording rain gages are located in the watershed above this station.


EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 14,300 ft 3 /s May 25, 1981 (gage height, 27.24 ft); no flow at times in 1967, 1971, and 1982-83.

Maximum stage since at least 1891, that of May 25, 1981.

EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of June 15, 1935, reached a stage of 24 ft, backwater from Colorado River. A flood in 1919 reached a stage of 22 ft, from information by local residents.

EXTREMES FOR CURRENT YEAR.--Peak discharges above base of 1,500 ft 3 /s and maximum (*):


May 11 May 20 May 21

020016451000

Discharge (ft 3 /s)

*3,100 2,040 2,040

Gage height (ft)

15.3112.8912.89

June 5 Aug. 8

01151730

Discharge (ft 3 /s)

2,7402,570

Gage height (ft)

14.5314.20

Minimum daily discharge, no flow for many days.

DAY

DISCHARGE, "IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1982 TO SEPTEMBER 1983MEAN VALUES

OCT NOV DEC JAN FEE MAR APR MAY JUN JUL AUG SEP

1234

- 5

6789

10

1112131415

1617181920

2122232425

262728293031


CAL YRWTR YR

3.9.32.04.01.00

1 .36.66.02.7

19

7.0177.03.52.5

.9

.7

.5

.3

.1

.1

.7

.31.0.81

.81 1

.811 177

.85

.00

180.75 25.83

77.00.11.13359


.0026543.2.44

.04

.01

.00

.00

.00

.00

.51

.00

.00

.00

.00

.02

.021 .4.13

.00

.004.51.7.20

1149159.77.2---

84.079.47

1 11.00.19.21563

6519.7624.

5.14.1

427.24.7

3.02.72.52.0

19

308.75.44.43.8

3.22.52.32.02.0

2.01.72.02.52.7

8.4368.74.43.86.4

235.27.59

421 .7.15.17467

52 MEAN99 MEAN

912015131 1

9.69.07.97.67.4

7.25.96.05.85.8

5.45.5

394322

3318151312

109.7

108.59.79.1

485.115.6

915.4.30.35962

17.920.9

8.98.68.29.8

69

171210

10526

1816151488

2821181514

1413131212

111111__.___---

618.522.11051.2.43.45

1230

MAX 3200MAX 378

1 111117030

2419184530

21162018

120

8025213925

1816

1808041

1994040374532

138244.6199

1 1.87

1 .002740

MIN .00MIN .00

3028272625

2524222221

2120181715

1515141313

1414121111

9.69.29. 18.78.4---

518.01 7.3

308.4.34.38

1030

CFSMCFSM

7.86.76.86.16.1

5.86.16. 17.36.5

37818151329

14125417

352

34833221816

151414141316

1490.348.13785.8.94

1 .082960

.35 IN

.41 IN

14121211

343

10840252119

1716155630

2920161514

1413151562

161213131 1

---

101733.934311.66.74

2020

4.735.53

119.07.97.27.9

8.47.46.66.15.6

5.04.74.7

4724

8317119.08.2

7.56.86.25.14.3

3.73.03.43.23.23.1

340.21 1 .0

833.0.21.25675

AC-FT 12930AC-FT 15120

2.92.52.4

1512

146.6

3482110

7.98.47.85.64.6

3.73.23.2

23916

9.47.46.25.25.1

4.73.83.43.12.72.5

787.325.43402.4.50.57

1560

4.53.32.21.7.97

2.21.43.9

2611

6.23.92.9

104.4

2.82.5

1312615

7.05.75.14.74.1

3.53.23.23.23,0---

286.579.55126.97.19.21568

-78-


08158600 WALNUT CREEK AT WEBBERVILLE ROAD, AUSTIN, TX--Continued


PERIOD OF RECORD. Chemical and biochemical analyses: October 1975 to current year. Sediment records: to September 1982. Radiochemical analyses: October 1979 to September 1980.

October 1977


DATE

FEB28...

MAR04...

SPE-

PH (STAND- TEMPER-ARD ATURE

UNITS) (DEC C)

8.3

7.9

12.0

18.0 10



TURBIDITY

(NTU)

OXYGEN,DIS

SOLVED(MG/L)

DISSOLVED(PERCENT

SATURATION)


FORM,FECAL ,0.7UM-MF(COLS./100 ML)

TOCOCCIFECAL,

KF AGAR(COLS.PER

100 ML)

1.0

210

13.2

7.8

125

85

.7

8.7

160

12000

120

42000

DATE

FEB28...

MAR04...


HARDNESS,



MAGNESIUM,DISSOLVED (MG/L AS MG)

SODIUM,DIS

SOLVED (MG/L AS NA)

SODIUMAD

SORPTION

RATIO

POTASSIUM,DIS

SOLVED (MG/L AS K)



AS S04)


FLUO-RIDE,DIS

SOLVED (MG/L AS F)

SILICA,DISSOLVED(MG/L AS SI02)

6.0

3.4

26

14

1.9

2.4

170

110

65

39

44

21

.40

.30

1 .4

3.5

SOLIDS, SOLIDS,SUM OF RESIDUE SOLIDSCONSTI- AT 105 VOLA-TUENTS, DEC. C,

D1S- SUS-SOLVED PENDED

TILE, SUS PENDED

DATE

FEB28...

MAR04...

329

205

4

261

NITRO GEN,


NITRO GEN,

NITRO GEN,

NITRO GEN,

NITRO-NITRO- GEN.AM- GEN, MONIA +

40 .65

AS N)

<.020

.050

AS N)

.50

.70

AS N)

.080

.150

AS N)

.52

.75

AS N)

.60

.90

PHOS-NITRATE NITRITE N02+N03 AMMONIA ORGANIC ORGANIC PHORUS,TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL(MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L

AS P)

.010

.310


2.1

14

DATE

FEB28...

MAR04...

TIME

1120

1340

ARSENICDISSOLVED(UG/L AS AS)

BARIUM,DIS

SOLVED(UG/L AS BA)

CADMIUMDIS

SOLVED(UG/L AS CD)


COPPER,DISSOLVED(UG/L AS CD)

IRON,DIS

SOLVED(UG/L AS FE)

66

47 10

<3

25

DATE

LEAD,DIS

SOLVED(UG/L AS PB)

MANGANESE,DIS

SOLVED(UG/L AS MN)

MERCURYDIS

SOLVED(UG/L AS HG)

SELENIUM,DIS

SOLVED(UG/L AS SE)

SILVER,DIS

SOLVED(UG/L AS AG)

ZINC,DIS

SOLVED(UG/L AS ZN)

FEB28...

MAR04. ..

<1 <3

8

DATE

MAR 04...

TIME

1340

AME-TRYNETOTAL


ATRA- CYAN-ZINE, TOTAL (UG/L)

AZINE TOTAL (UG/L)


PROME- PROME- PRO-TONE

TOTAL (UG/L)

.3

TRYNE TOTAL

PAZINE TOTAL

(UG/L) (UG/L)




-79-

1 1

1 1

1 <1 III1 >-

1 rt 1 in

1 «31 '? 1

1 tfl 1 0-

II »

II II

11 1 11 1 1

1 1

II 1

II II

1 II II

1 0

1 O 1 Oi in i IY. i1 It. 1 U

II .0II 7'.n n i ~f

\ <~i i ^ i -i

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08158640 WALNUT CREEK AT SOUTHERN PACIFIC RAILROAD BRIDGE, AUSTIN, TX (Reconnaissance partial-record station)

LOCATION.--Lat 30°15'58", long 97°39'24", Travis County, Kydrologic Unit 12090205, at Southern Pacific Railroad bridge, 1.2 mi south of Webberville Road, and 5.0 mi east of the State Capitol in Austin.

DRAINAGE AREA.--53.5 mi ? .

PERIOD OF RECORD. Chemical, biochemical, and pesticide analyses: January 1975 to current year. Radiochenucal analy ses: October 1979 to September 1980.


OXYGEN , OXYGENSPE- DIS- DEMAND,

STREAM- CIFIC COLOR SOLVED BIO-FLOW, CON- PH (PLAT- TUR- OXYGEN, (PER- CHEM-IHSTAN- DUCT- (STAND- TEMPER- INUM- BID- DIS- CENT ICAL,

COLI- STREP-FORK, TOCOCCIFECAL, FECAL,0.7 KF AGAKUM-KF (COLS.

TIME TANEOUS ANCE ARD ATURE COBALT ITY SOLVED . SATUR- 5 DAY (COLS./ PERDATE

FEE28...

MAY11 ...

AUG19.. .

DATE

FEB28...

MAY1 1 ...

AUG19. . .

DATE

FEB28..

MAY11. .

AUG19..

(CFS) (UKHOS) UNITS) (DEC C) UNITS) (NTU) (KG/L) ATION) (MG/L) 100 KL) 100 NL)

1245 45 690 7.1 18.5 5 2.6 9.9 108 1.6

1055 410 485 7.7 23.0 25 450 6.6 79 11

1405 1350 225 7.9 24.0 50 2100 6.4 77 9.3

HARD- MAGNE- SODIUM POTAS- ALKA- CHLO-HARD- NESS, CALCIUM SIUM, SODIUM, AD- SIUM, LINITY SULFATE RIDE,NESS NONCAR- DIS- DIS- DIS- SORP- DIS- FIELD DIS- DIS-(MG/L BONATE SOLVED SOLVED SOLVED TION SOLVED (KG/L SOLVED SOLVEDAS (MG/L (MG/L (MG/L (MG/L RATIO (KG/L AS (MG/L (MG/LCAC03) CAC03) AS CA) AS MG) AS NA) AS K) CAC03) AS S04) AS CL)

190 66 53 13 62 2.1 6.7 120 72 78

150 42 49 7.1 39 1.4 5.8 110 59 45

87 21 31 2.3 9.8 .5 3.5 66 22 10

SOLIDS, SOLIDS, NITRO-SUM OF RESIDUE SOLIDS, MITRO- NITRO- NITRO- NITRO- NITRO- GEN.AM-CONSTI- AT 105 VOLA- GEN, GEN, GEN, GEN, GEN, MON IA + PHOS-TUENTS, DEC. C, TILE, NITRATE NITRITE N02+N03 AMMONIA ORGANIC ORGANIC PHORUS

DIS- SUS- SUS- TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTALSOLVED PENDED PENDED (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L(MG/L) (MG/L) (MG/L) AS N) AS N) AS N) AS N) AS N) AS N) AS P)

365 7 <1 7.8 .020 7.8 .120 1.5 1.60 4.70

280 768 400 2.2 .270 2.5 1.30 2.2 3.50 2.20

53 K65

K370 K1700

45000 52000

FLUO- SILICA,RIDE, DIS-DIS- SOLVED

SOLVED (KG/L(MG/L ASAS F) SI02)

.80 7.7

1.1 8.0

.40 5.3

CARBON ,, ORGANIC

TOTAL(MG/LAS C)

6.7

20

124 4610 552 .94 .060 1.0 .370 17 17.0 .670 84

CHRO-ARSENIC BARIUM, CADMIUM MIUM, COPPER, IRON,

DIS- DIS- DIS- DIS- DIS- DISSOLVED SOLVED SOLVED SOLVED SOLVED SOLVED

TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/LDATE AS AS) AS BA) AS CD) AS CR) AS CU) AS FE)

FEB28... 1245 1 30 <1 <10 8 11

MAY11... 1055 2 39 <1 <10 1 110

AUG19... 1405 2 26 <1 <10 6 10

MANGA- SELE-LEAD, NESE, MERCURY NIUM, SILVER, ZINC,DIS- DIS- DIS- DIS- DIS- DIS

SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED(UG/L (UG/L (UG/L (UG/L (UG/L (UG/L

DATE AS PB) AS MN) AS HG) AS SE) AS AG) AS ZN)

FEB28... 3 15 .1 <1 <1 13

MAY11... <1 9 <.1 1 <1 18

AUG19... <1 1 <.1 <1 <1 9

-82-


08158640 WALNUT CREEK SOUTHERN PACIFIC RAILROAD BRIDGE. AUSTIN, TX--Continued


DATE

AUG 19...

TIME

1405

AME-TRYNETOTAL


ATRA- ZINE, TOTAL

CYAN- AZINE TOTAL

CYPRA-ZINETOTAL

(UG/L) (UG/L) (UG/L)

METRO- PROME-MYL TONE


<2.0 .3



AUG 19... <.1 <.10 <2.0 <2.0



-83-


08158700 ONION CREEK NEAR DRIFTWOOD, TX

LOCATION.--Lat 30°04'59", long 98°00'29", Hays County, Hydrologic Unit 12090205, on left bank at upstream side of low- water crossing on Farm Road 150, 3.2 mi southeast of Driftwood, and 10 mi west of Buda.

DRAINAGE AREA. 124 mi 2 .


PERIOD OF RECORD. April 1958, November 1961 to June 1979 (periodic discharge measurements only), July 1979 to current year.


REMARKS. Water-discharge records fair. Station is part of hydrologic research project to study rainfall-runoff rela tionship in the Austin urban-rural areas. There is a recording rain gage located in the watershed.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 8,010 ft'/s June 11, 1981 (gage height, 15.24 ft); minimum daily, 0.27 ft-'/s Sept. 5, 1980.

Flood of Mar. 20, 1979, reached a stage of 11.48 ft (discharge, 4,980 ft ! /s), on basis of peak flow over dam, 1.5 mi downstream. Flood of June 11, 1981, peaked at a depth of 5 ft over this dam.

EXTREMES FOR CURRENT YEAR.--Maximum discharge, 588 ft'/s Mar. 4 at 1530 hours (gage height, 5.83 ft), no other peak above base of 500 ft ; /s; minimum daily, 0.55 ft'/s Oct. 4, 31.



12345

6789

10

1112131415

1617181920

2122232425

262728293031


CAL YRWTR YR

.60

.60

.58

.55

.59

.831 .73.92.01.6

1 .31.71.71.2.87

.75.75.75.75.71

.60

.73.89.76.68

.60

.60

.60.70.58.55

30.72.993.9.55

.008.01

61


.58

.933.2

.83

.58

.57

.75

.87

.761.3

2.81.2.59.58.74

.75

.84

.921.51.3

1.0.92.98

2.01.4

4.76.85.54.33.8

52.991.776.8.57.01.02105

563610997

3.33.13.02.32.1

1.61.61.61 .62.9

2.52.01.82.42.7

2.72.73.02.92.2

2.22.22.42.72.7

2.24.73.32.72.72.9

78.72.544.71.6.02.02156

. 80 MEAN

.91 MEAN

5.25.25.66.17.3

8.08.48.68.68.6

8.38.27.97.97.6

7.57.58.48.48.3

8.99.09.09.29.4

9.71010101011

257.88.32

115.2.07.08511

15.430.1

11109.99.8

10

1111111322

2120191948

5349474544

4342414039

383736

799.728.6

539.8.23.24

1590

MAX 1960MAX 265

363534

163136

10490838176

7575757476

8993858281

7976

114116110

223156129137206135

3124101223

34.82.94

6200

MINMIN

114101

999690

8581787472

6867656059

5654535150

4949454342

4040383838

189563.2

11438

.51

.573760

.48 CFSM

.55 CFSM

3734323028

2826242323

4534282427

2424242294

265118

796659

544947444139

149248.1

26522

.39

.452960

.12 IN

.24 IN

3938373645

5049423836

34333171

124

8586625652

4946454264

6049423835

151450.5

12431

.41

.453000

1.693.30

3431272629

5141272523

2323233034

4290645245

4036332825

242220201817

102333.0

9017

.27

.312030

AC-FT 11180AC-FT 21810

1616151515

1416171619

1614141314

1211111110

11119.69.59.8

9.48.67.98.57.36.4

384.012.4

196.4.10.12762

5.95.54.34.13.8

3.22.64.16.25.2

4.23.11.81.61.6

1.61-.66.8

8641

2220181715

141312119.8

346.011.5

861.6.09.10686

-84-

PERIOD OF RECORD.--Chemical, biochemical, and pesticide analyses ses: October 1979 to September 1980.


08158700 ONION CREEK NEAR DRIFTWOOD, TX--Continued


January 1974 to current year. Radiochemical analy-


DATETIME



PH(STANDARD

UNITS)

TEMPERATURE(DEC C)

09001220

32126

462460

7.9 7.7

15.013.0


.60 1 .3

9.1 10.2

9399

76220

STREP-


TURBIDITY

(NTU)

OXYGEN,DIS

SOLVED(MG/L)

DISSOLVED(PERCENT

SATURATION)


FORM,FECAL,0.7UM-MF(COLS./100 ML)

TOCOCCIFECAL,

KF AGAR(COLS.PER

100 ML)

43440

DATE

HARDNESS(MG/L AS

CAC03)

HARDNESS,



MAGNESIUM,DIS

SOLVED (MG/L AS MG)

SODIUM,DIS

SOLVED (MG/L AS NA)

230230

2428

6968

1514

7.3 6.6

SODIUMAD

SORPTION RATIO

POTASSIUM,DIS

SOLVED (MG/L AS K)

ALKALINITYFIELD(MG/L AS

CAC03)


AS S04)


FLUO-RIDE,DIS

SOLVED (MG/L AS F)

.2

.21.0 .9

210200

2721

1312

.20

.20

SOLIDS, SOLIDS,SILICA, SUM OF RESIDUEDIS- CONSTI- AT 105SOLVED TUENTS, DEC. C,(MG/L DIS- SUS-

DATEAS SI02)

MAR01... 7.2 23... 7.2

SOLVED PENDED (MG/L) (MG/L)

266250

SOLIDS,VOLATILE,SUS

PENDED(MG/L)

NITROGEN,

NITRITETOTAL '(MG/LAS N)

NITROGEN,


NITROGEN,


NITROGEN,





<.020 <.020

.20

.20.090.090

.61

.51.70 .60

.010

.0301.3 1.8

DATETIME

09001220

ARSENIC DIS SOLVED (UG/L AS AS)

BARIUM, DIS SOLVED (UG/L AS BA)

CADMIUM DIS

SOLVED (UG/L AS CD)

CHRO MIUM, DIS SOLVED (UC/L AS CR)


IRON, DIS SOLVED (UG/L AS FE)

2624

<3 3

DATE


MANGANESE,DIS

SOLVED(UG/L AS MN)

MERCURYDIS

SOLVED(UG/L AS HG)

SELENIUM,DIS

SOLVED(UG/L AS SE)

SILVER,DISSOLVED(UG/L AS AG)

ZINC,DIS

SOLVED(UG/L AS ZN)

<3

DATE

MAR 23...

TIME

1220

ATRA-AME- TONE TRYNE TOTAL TOTAL (UG/L)



<2.0

PROME-TONE

TOTAL (UG/L)



MAR 23... <.1 <.10 <2.0 <2.0




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08158800 ONION CREEK AT BUDA, TX

LOCATION. Lat 30 e05'09". long 97 e50'52", Haya County, Hydrologic Untt 12090205. on left bank at downstream atde of bridge on Farm Road 967 and 0.4 mi northwest of Buda.

DRAINAGE AREA. 166 mi 2 .


PERIOD OF RECORD. November 1961 to September 1973, January 1978 to July 1979 (periodic discharge measurements only), July 1979 to September 1983 (discontinued).

GAGE. Water-stage recorder. Datum of gage is 657.39 ft National Geodetic Vertical Datum of 1929.

REMARKS. Water-discharge records fair. The station is part of a hydrologic-research project to study rainfall-runoff relation for the Austin urban-rural areas. There are two recording rain gages located in the watershed.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 17,400 ft'/s June 13. 1981 (gage height, 17.59 ft); no flow at times each year.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of May 28, 1929, reached a stage of about 36.2 ft, present datum (discharge, 53,200 ft*/s), from slope-area indirect measurement of peak flow. This is probably the highest flood since that date.

EXTREMES FOR CURRENT YEAR. Peak discharges above base of 1,000 ft ! /s and maximum (*):

Date

Mar. 30 May 20 May 21

Time

1130 1900 1115

Discharge(ft'/B)

1,240 1,210

*1,650

Gage height (ft)

6.11 6.07 6.59

Minimum discharge, no flow for many days.

DISCHARGE. IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1982 TO SEPTEMBER 1983MEAN VALUES

DAY OCT NOV DEC JAN FEE MAR APR MAY JUN JUL AUG SEP

12345

6789

10

1112131415

1617181920

2122232425

262728293031


CAL YRWTR YR

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00.000.00.00

.000.00.00

1 982 TOTAL1983 TOTAL

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

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.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00.000.00.00

.000.00.00

5135.823135.45

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00.000.00.00

.000.00.00

MEANMEAN

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00.000.00.00

.000.00.00

14.18.59

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00...

.00.000.00.00

.000.00.00

MAX 3640MAX 876

.00

.00

.00

.0083

9.83.51.6.89.22

.00

.00

.00

.00

.00

.21

.61

.26

.11

.23

.19

.082.41.97.1

1661315436

338207

1044.1033.7338.00.20.23

2070

MINMIN

9955413420

1412119.38.0

5.94.22.82.11 .9

1.81 .71.61 .51 .4

1.41 .41 .41.31.2

1.21.11.11 .11.1

340.511 .4

991 .1.07.08675

.00 CFSM

.00 CFSM

.97

.86

.74

.65

.50

.32

.19

.11

.08

.13

1.7.89.60.52.98

1.1.82

1 .11.3

218

87633575133.9

1.61.31.31.21 .11 .0

1541 .9649.7876.08.30.35

3060

.09 IN

.05 IN

.92

.88

.69

.561 .7

1 .11 .1.82.61.47

.33

.15

.02

.0264

347217

1 .9.71

.14

.06

.00

.00

.00

.00-

.00

.00

.00

.00

199.186.64

72.00.04.04395

1 .15.70

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.003.62.1.08

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

5.78.193.6.00

.001.0011

AC-FT 10190AC-FT b220

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00.000.00.00

.000.00.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.492.8.64

.ou

.00

.00

.00

.00

.00

.00

.00

.00

.00

j.93.1 J2.b.00

.001.007.8

-88-

PERIOD OF RECORD. Chemical, biochemical, and pesticide analyses: Radiochenical analyses: October 1979 to September 1980.


08158800 ONION CREEK AT BUDA, TX Continued


January 1978 to September 1983 (discontinued)


DATE

MAR 23...

TIME

1130



PH(STANDARD

UNITS)

TEMPERATURE(DEC C)


TURBIDITY

(NTU)

OXYGEN ,DIS

SOLVED(MG/L)

OXYGEN . DISSOLVED(PERCENT

SATURATION)

OXYGEN DEMAND,BIOCHEMICAL,5 DAY(MG/L)

COLI- FORM,FECAL,0.7UM-MF(COLS./100 ML)

STREP TOCOCCIFECAL,

KF AGAR(COLS.

PER100 ML)

3.4 312 7.7 11.0 50 35 11.2 104 2.2 10000 40000

DATE

MAR 23...


HARDNESS,



MAGNESIUM,DIS

SOLVED(MG/LAS MG)


SODIUMAD

SORPTION

RATIO

POTASSIUM,DIS

SOLVED(MG/LAS K)



AS S04)


FLUO-RIDE,DIS

SOLVED(MG/LAS F)


SI02)

140 44 47 5.9 6.2 .2 2.5 98 .10 8.0

SOLIDS, SOLIDS, SUM OF RESIDUE SOLIDS CONSTI- AT 105 VOLA- TUENTS, DEC. C,

SUS-DIS- SOLVED PENDED

TILE, SUS

PENDEDDATE

MAR 23...

(MG/L) (KG/L) (MG/L) AS N)

174 16 14

NITRO- NITRO- NITRO- NITRO- NITRO- NITRO- GEN.AM-GEN, GEN, GEN, GEN, GEN, MONIA + PHOS- CARBON,

NITRATE NITRITE N02+N03 AMMONIA ORGANIC ORGANIC PHORUS, ORGANIC TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L

.16

AS N)

.040

'AS N) AS N) AS N) AS N)

.20 .130 .97 1.10

AS P)

.070

AS C)

13

DATETIME

1130

ARSENIC BARIUM, CADMIUMDIS

SOLVED (UG/L

AS AS) AS BA) AS CD)

DIS- DIS SOLVED SOLVED (UG/L (UG/L



IRON, DIS

SOLVED (UG/L AS FE)

27 <1

DATE

MAR23...

LEAD,DIS

SOLVED(UG/LAS PB)

4

MANGANESE,DIS

SOLVED(UG/LAS MN)

3

MERCURYDIS

SOLVED (UG/LAS HG)

<-1

SELENIUM,DIS

SOLVED(UG/LAS SE)

<1

SILVER,DIS

SOLVED(UG/LAS AG)

<1

ZINC,DIS

SOLVED(UG/LAS ZN)

6

DATETIME

1130

AME-TRYNETOTAL


ATRA- ZINE, TOTAL (UG/L)

CYAN- CYPRA-AZINE ZINETOTAL TOTAL(UG/L) (UG/L)

METHO-MYL

TOTAL (UG/L)

<2.0

PROME-TONE

TOTAL (UG/L)



MAR 23... <.1 <.10 <2.0 <2.0



-89-

<-> O O O O O ."3 O O O O O O CDr^- --t O ru T o T 'V o ^ *o t> r f>j * T o T~ * rvi o O o M T- *> O O t Of>'<1"<->o^-'\ll/'ir^-T- r-O'AJinf^'Or -.f II

O O O O O O O O D ~i "J O O T} O O O O CD O O O O O O

O O O O O O O O O O O 'D O O O O O O O O CD T O O ~>

O ") O <_J

O O O O

O O "3 O O O O '-.3

-> o o o o o o o

O O O O O C) O O O O O O O O O O

<\j f-- in r-i O ^t iri o o O O O O O r") -to fM T r- f> >o r<j (\i 'ji T N T- fM r- O OOOOO

o o o « <\i -'M K» -4 i/> f«

o o o o o o (.1 o c i o

I C3I (YI O

O C) O ri O ( ;> r.i o

C O O t)

c_) O CT O O CJ O O O

r--> -t o < -t -T * ' J *- n o N. 'O o

'.) LT1 CJ 1/1 r-) .,-> 3K> -^ I'D r TD < fOo- *> o r^ » « -» r- r\i rj cj r-J --J

O Nl t) 'J _J

-90-

o o o «.-C. O CJ cr.

» c.<Ji O

<.* o o \jt(_; CJ C. C1r> O O Cj 0

r~ C) -O > o oj

II 0 II O-

o o- o- >> o ocr a 17 o- o

I r>.) i\j rjrx> c\) tvi ro » OO i.D

I\J (\J

O O O O O O O O O c_i O O O

IX) i\J IO (X) l\> IvJ (XI

ro ix> rvi r\> rv

ui ui i,n 1/1 ui

C/J Wl ~*j ci 4?* 4^" O3 Cy O 4?"* ^JIx) r\j ^yi ~^J "J *-J H^ CJ vji To 4^

O O O O O O O CJ O O O

4" -^ CJ O CJ CJ CJ CJ CJ O O <_) O O CJ O O CJ <_> O O CJ ">J *J -J

IJ O CJ O O O CJ CJ O O O O CJ O O O O O O O O O C.J O O

II Tl

II CO

O O O Ci CJ O O O C CJ O

i/J OJ IX fx) rj ix> * CJ O J en

O O CX, O 4~- P~ *..-* >* O

O O O C' O O C) O O O O CJ CJ C) O C) O O O Ci C) C.'

'l\j«v_- »_-_*-»_»-»-» »-»_- »-» »-»-* oCft C>

C r\j NO O uo O O x.j Ô 4^ rx» ~^J (** ^ ~>J O O 4-*1 C3 ~>J O *-»


08159000 ONION CREEK AT U.S. HIGHWAY 183 NEAR AUSTIN, TX

LOCATION.--Lat 30°10'40", long 97°41'18", Travis County, Hydrologic Unit 12090205, on right bank at downstream side of downstream bridge on U.S. Highway 183, 2.4 mi downstream from Williamson Creek, 3.2 mi southwest of Del Valle, and 7.5 mi southeast of the State Capitol Building in Austin.

DRAINAGE AREA.--321 mi 2.


PERIOD OF RECORD.--May 1924 to March 1930, March 1976 to current year. In 1924-30 station was published as "near Del Valle."

GAGE.--Water-stage recorder. Datum of gage is 442.85 ft State Department of Highways and Public Transportation datum. May 15, 1924, to Mar. 15, 1930, nonrecording gage at highway bridge 1,700 ft upstream at 6.42-foot higher datum.

REMARKS.--Water-discharge records good. Flow is slightly regulated by several small ponds on main channel and tributar ies above station. There are eleven recording rain gages located in the watershed.

AVERAGE DISCHARGE.--12 years (water years 1925-29, 1977-83), 81.7 ft 3 /s (3.46 in/yr), 59,190 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 76,000 ft 3 /s hay 28, 1929 (gage height, 30.5 ft), present datum; no flow at times.

EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum stage since 1869 occurred about July 3, 1869, stage about 38 ft from news paper accounts, and Sept. 9, 1921, stage 38.0 ft, from floodraark, present site and datum.

EXTREMES FOR CURRENT YEAR.--Peak discharges above base of 2,500 ft 3 /s and maximum (*):


Mar. 23 May 20

09451830

Discharge (ft 3 /s)

2,550 *4,030

Gage height (ft)

10.1012.33

May 21 Aug. 8

13001700

Discharge (ft 3 /s)

3,9902,560

Gage height (ft)

12.2710.12

Minimum daily discharge, 0.31 ft 3 /s Oct. 16.

DISCHARGE, IN CUBIC FEET PER SECOND. WATER YEAR OCTOBER 1982 TO SEPTEMBER 1983MEAN VALUES


1 1.12 1.23 1.24 1.15 .57

6 .577 .688 1.09 1.0

10 1.4

11 1.612 1.213 .9914 .6615 .42

16 .3117 .5218 .7619 .7620 .87

21 1.122 1.223 1.224 1.225 .89

26 .7627 .6728 .9829 .8230 .7631 .76

TOTAL 28.25MEAN . 9 1MAX 1 . 6MIN .31CFSM .003IN. .00AC-FT 56

.76

.806.13.02.0

1.21 .1.99.80.76

.76

.76

.76

.76

.90

1 .21 .21.21.31.4

1.61.71 .61.51.9

86681 15.54.5

211.057.04

86.76.02.02419

CAL YR 1982 TOTAL 14013WTR YR 1983 TOTAL 16078

3.93.76.46.94.7

4. 14.14. 14.14.3

6.89.95.85.45.2

5.45.45.65.96.6

6.87.26.96.46.0

5.87.88.76.86.76.3

183.75.939.93.7.02.02364

. 3 7 MEAN

.80 MEAN

8121107.35.9

5.45.45.14.95.3

5.45. 14.95.15.0

4.94.9

155727

2119119.48.1

7.96.77.38.39.7

1 1

405.013.1

814.9.04.05803

33.444.1

109.2

101095

198.0

- 6.833966

147.46.05.4

57

28128.77.66.9

6.66.36.36.36.3

6.35.85.8______---

775.727.73395.4.09.09

1540

MAX 6510MAX 2220

5.85.65.8

7166

672815117.2

5.85.45.55.87.8

15076211320

159.2

89116257

558293144104331390

3546.91148915.4.36.41

7040

MIN,MIN

160104827563

5042363432

2824211715

1413131313

131312121 1

111 11 11 111

---

96532.216011.10.11

1910

.01 CFSM

.31 CFSM

1111109.68.9

7.77.36.66.86.6

41533151221

19122747

1090

222083224411060

433328242322

5415.5175

22206.6.55.63

10740

.12 IN

.14 IN

21212120

448

12072312421

1918171617

1 1494764423

1916141414

261614121 1

---

139346.444811

.15

.162760

1.621.86

109.78.68.27.7

7.77.77.66.86.3

5.85.85.5

4634

4921151212

119.38.77.16.3

5.85.45.45.45.44.4

4.14. 14.03.23.0

3.03.0

42312480

1614952717

141210

300150

802515108.0

7.06.05.55.04.54.0

360.6 1476.41 1.6

494.4.04.04715

AC-FT 27800AC-FT 31890

47.64233.0.15.17

2930

4.54.03.73.43.0

3.53.33.03.65.7

167.85.95.45.4

4.94.8

204713150

4522161312

12121 19.99.9---

1317.743.97133.0.14.15

2610

-92-


08159000 ONION CREEK AT U.S. HIGHWAY 183 NEAR AUSTIN. TX--Continued


PERIOD OF RECORD.--Chemical, biochemical, and pesticide analyses: October 1976 to current year. October 1976 to September 1982. Radiochemical analyses: October 1979 to September 1980.

Sediment analyses


DATE

FEB09...

MAR02...

TIME

1435

0900

STREAM- FLOW,

INSTAN TANEOUS (CFS)

757

7.7


465

589


(UMHOS) UNITS) (DEC C)

7.0

8.2

14.0

17.0


TURBIDITY

(NTU)

OXYGEN,DIS

SOLVED(MG/L)

OXYGEN,DISSOLVED(PERCENT

SATURATION)

OXYGENDEMAND,BIOCHEMICAL,5 DAY(MG/L)

COLI-FORM,FECAL.0.7UM-MF(COLS./100 ML)

STREPTOCOCCIFECAL,

KF AGAR(COLS.PER

100 ML)

35 620

<1 1.3 9.5 100

5.8

.6

K1300

29

K14000

K67

DATE

FEB09...

MAR02...


HARDNESS,



MAGNESIUM,DIS

SOLVED (MG/L AS MG)

SODIUM,DIS

SOLVED (MG/L AS NA)

190

230

37

35

61

74

8.3

12

22

33

SODIUMAD

SORPTION

RATIO

POTASSIUM,DIS

SOLVED (MG/L AS K)


SULFATKDISSOLVED (MG/L

AS S04)


FLUO-RIDE,DIS

SOLVED (MG/L AS F)

SILICA,DISSOLVED(MG/L AS

SI02)

.7

1.0

2.5

2.4

150

200

44

59

28

40

.30

.40

5.2

3.1

SOLIDS, SOLIDS, SUM OF RESIDUE SOLIDS CONSTI- AT 105 VOLA- TUENTS, DEC. C,

SUS-DIS- SOLVED FENDED

TILE, SUS PENDED

DATE

FEB09...

MAR02...

261

344

592 62

NITRO GEN,

NITRO GEN,

NITRO GEN,

NITRO GEN,

NITRO-NITRO- GEN.AM- GEN, MONIA + PHOS- CARBON,


NITRATE NITRITE N02+N03 AMMONIA ORGANIC ORGANIC PHORUS, ORGANICTOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL(MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L

.66

AS N)

.040

<.020

AS N)

.70

.10

AS N)

.100

.120

AS N)

2.9

.68

AS N)

3.00

.80

AS P)

.770

.050

AS C)

11

3.7

DATE

FEB09...

MAR02...

TIME

1435

0900

ARSENICDIS

SOLVED(UG/L AS AS)

BARIUM,DIS

SOLVED(UG/L AS BA)

CADMIUMDIS

SOLVED(UG/L AS CD)



IRON,DIS

SOLVED(UG/L AS FE)

50

60

12

<3

DATE

LEAD,DIS

SOLVED(UG/LAS PB)

MANGANESE,DISSOLVED(UG/LAS MN)

MERCURYDISSOLVED(UG/LAS HG)

SELENIUM,DIS

SOLVED(UG/LAS SE)

SILVER.DIS

SOLVED(UG/LAS AG)

ZINC,DISSOLVED(UG/LAS ZN)

FEB09...

MAR02...

<1 18

3

<3

5

DATE

FEB 09...

TIME

1435

AME-TRYNETOTAL






<2.0

PROME- PRO-TRYNE PAZINETOTAL TOTAL

DATE (UG/L) (UG/L)

FEB 09... <.1 <.1C


SEVIN,TOTAL(UG/L)

<2.0 <2.0

-93-




08158810 BEAR CREEK BELOW FARM ROAD 1826 NEAR DRIFTWOOD, TX

LOCATION. Lat 30°09'19", long 97°56'23", Hays County, Hydrologic Unit 12090205, 0.8 mi southeast of Farm Road 1826 and 5.9 mi northeast of Driftwood.



PERIOD OF RECORD. March 1978 to July 1979 (periodic discharge measurements only), October 1978 to June 1979 (peak discharges above base only), July 1979 to current year.

GAGE. Water-stage recorder. Altitude of gage is 860 ft, from topographic map.

REMARKS. Water-discharge records good. Station is part of a hydrologic research project to study rainfall-runoff relation for the Austin urban-rural areas. There is a recording rain gage located in the watershed.

EXTREMES FOR PERIOD OF RECORD. Maxumum discharge, 8,330 ft 3 /s June 11, 1981 (gage height, 13.05 ft, from floodmarks), from slope-area measurements of peak flow; no flow Aug. 28 to Sept. 5, 1980, and Sept 13, 18, 19, Oct. 4, 5, 1982.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of June 9, 1939, reached a stage of 16.2 ft (discharge unknown) and was the highest since at least 1924, from information by local resident. A flood in 1915 was 2 ft higher than the 1939 flood, from information by local resident.

EXTREMES FOR CURRENT YEAR. Maximum discharge, 154 ft 3 /s Aug. 8 at 1345 hours (gage height, 4.01 ft), no peak above base of 500 ft'/s; no flow Oct. 4, 5.


DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEF

12345

6789

10

1112131415

1617181920

2122232425

262728293031


CAL YRWTR YR

.02

.02

.01

.00

.00

.09

.44

.25

.18

.15

.15

.15

.16

.15

.15

.14

.14

.14

.14

.13

.12

.11

.11

.10

.11

.11

.11

.11

.11

.11

.12

3.83.12.44.00.01.017.6


.12

.18

.56

.24

.22

.26

.28

.28

.28

.32

.36

.36

.31

.30

.32

.33

.33

.33

.44

.38

.37

.35

.35

.43

.37

3.15.04.64.03.5

28.27.945.0.12.08.0956

955.091825.72

3.23.34.43.63.5

3.33.33.33.13.9

4.23.83.84.04.0

3.83.83.83.63.5

3.53.43.33.22.9

3.14.33.12.42.52.4

107.33.464.42.4.28.33213

MEANMEAN

4.43.63.53.73.9

4.04.04.04.13.9

3.73.53.53.53.1

3.33.34.03.94.1

4.44.34.34.64.7

4.64.64.74.74.54.7

125.14.044.73.1.33.38248

2.625.00

4.54.34.14.15.0

4.54.34.37.17.4

7.27.26.97.2

13

1010101010

10109.99.69.6

9.39.39.0

217.87.78

134.1.64.66432

MAX 258MAX 31

9.08.98.7

1814

1212111111

1010101010

1514121212

1211231918

311918171716

431.613.9

318.71.141.32856

MIN .00MIN .00

1514131312

1211111010

9.89.59.38.88.4

8.07.67.37.06.5

6.05.65.14.64.5

4.34.34.03.83.8

249.28.31

153.8.68.76494

CFSM .22CFSM .41

3.73.53.22.92.7

2.72.52.32.32.6

4.43.12.72.53.3

2.52.33.22.4

14

2712119.99.0

8.77.87.26.96.66.3

181.25.85

272.3.48.55359

IN 2IN 5

6.36.05.45.27.5

7.56.96.35.45.2

4.34.13.3

1711

8.48.47.87.57.2

7.26.66.25.86.0

5.45.34.84.54.0

196.56.55

173.3.54.60390

.91 AC-FT

.57 AC-FT

3.73.53.33.13.2

3.02.62.42.22.1

2.02.22.73.12.8

3.5228.37.77.1

6.86.56.25.85.5

5.14.84.64.34.03.7

147.84.77

222.0.39.45293

18903620

3.43.02.92.92.6

2.72.515b.54.2

3.63.33.23.02.8

2.72.52.42.62.5

2.22.11.91.92.1

1.81.71.81.81.61.6

93.83.03

151.6.25.29186

1.51.51 .41.41.3

1.21.11.01.41.1

.94

.78

.54

.23

.17

.16

.103.84.02.7

2.11.91.7.6.6

.6

.6

.61 .71.6

43.321.444.0.10.12.1386

-94-


08158810 BEAR CREEK BELOW FARM ROAD 1826 NEAR DRIFTWOOD, TX--Continued

U'ATER-QUALITY RECORDS

PERIOD OF RECORD.--Chemical, biochemical, and pesticide analyses: October 1979 to September 1980.

March 1978 to current year. Radioehemica1 analyses

WATER QUALITY DATA, WATER YEAR OCTOBER 1982 TO SEPTEMBER 198J

DATE

FEB09...

MAR01 ...

TIME



PH(STANDARD

UNITS)

TEMPERATURE(DEC C)

1230

0935 1.7

452

510

13.5

15.0


TURBIDITY

(NTU)

OXYGEN,DIS

SOLVED(MG/L)

OXYGEN,DISSOLVED(PERCENT

SATURATION)

OXYGENDEMAND,BIOCHEMICAL,b DAY(MG/L)

COLl-FORM ,FECAL,0.7UM-MF(COLS./100 ML)

STREPTOCOCCIFECAL,

KF AGAR(COLS.

HER100 ML)

10 5J

1.0

9.5

9.4

95

97

1 .0

.5

DATE

FEB09...

MAR01... 250


HARDNESS,



MAGNESIUM,DIS

SOLVED(MG/LAS MG)

SODIUM,DIS

SOLVED(MG/LAS NA)

230 30

21

69

74

14

16

7.1

8.2

SODIUMAD

SORPTION

RATIO

POTASSIUM,DIS

SOLVED(MG/LAS K)



AS S04)

CHLORIDE ,DISSOLVED(MG/LAS CL)

FLUO-RIDE,DIS

SOLVED(MG/LAS F)


SI02)

1 .0

.7

200

230

24

27

.20

.20

7. 2

7.6

DATE

FEB09...

MAR01...

SOLIDS, SUM OF CONSTI TUENTS,

DISSOLVED(MG/L)

254

287

SOLIDS, RESIDUE SOLIDS, NITRO- AT 105 VOLA- GEN, DEC. C, TILE, NITRATE SUS- SUS- TOTALPENDED PENDED (MG/L(KG/L) (MG/L) AS

63 40

<1 <1

N)

.28

--

NITRO GEN,

NITRITE TOTAL(MG/LAS

<

N)

.020

.020

NITRO GEN,

N02+N03 TOTAL(MG/LAS N)

.30

.30

NITRO GEN,

AMMONIA TOTAL(MG/LAS N)

.090

.090

NITRO- NITRO- GEN.AM- GEN, MONIA + PHOS- CARBON,

ORGANIC ORGANIC PHORUS, ORGANIC- TOTAL TOTAL TOTAL TOTAL(MG/LAS N)

.41

.21

(MG/L (MG/L (MG/LAS N) AS P) AS C)

.50 .040 3.6

.30 .010 1.3

CHRO-ARSENIC

DISSOLVED

TIME (UG/LDATE AS

FEB09... 1230

MAR01... 0935

AS)

<1

<1

BARIUM,DIS

SOLVED(UG/LAS BA)

24

27

CADMIUMDIS

SOLVED(UG/LAS

MANGA-

"

LEAD,DIS

SOLVED(UG/L

DATE AS PB)

FEB09... 2

MAR01... 2

NESE,DIS-

SOLVED(UG/LAS MN)

3

<1

MERCURYDIS

SOLVED(UG/LAS HG)

<. 1

<. 1

CD)

<1

<1

MIUM,DISSOLVED(UG/LAS CR)

<10

10

COPPER,DIS .SOLVED(UG/LAS CU)

5

<1

IRON,DIS

SOLVED(UG/LAS FE)

6

<3

SELENIUM. SILVER,DIS

SOLVED(UG/LAS SE)

1

1

DIS-SOLVED(UG/LAS AG)

<1

<1

ZINCDIS

t-

SOLVED(UG/LAS ZN)

<3

5

DATE

FEB 09...

TIME

1230

ATRA- ATRA- CYAN- CYPRA-AME- TONE ZINE, AZINE ZINETRYNE TOTAL TOTAL TOTAL TOTALTOTAL (UG/L) (UG/L) (UG/L) (UG/L)



<2.0

DATE

FEB 09...

PROME- PRO- , SIMA- SIME- SIME-TRYNE PAZINE PROPHAM SEVIN, ZINE TONE TRYNETOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL(UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L)

<2.0

-95-<2.0

5TA. NC. Del

5'5i1

0

ST3RM RAINFALL AND RjNGF- RECORD

1933 WATER YEAR

SEAR CR

EEK,

octOW PARS'

ROAD 1326

NE'V

R CRI

PTÔOD- TEXAS

STORM OF HAY 20-21, 1933

DAT;

i TIME

MAY 20

0000

0445

0 y 0

01 13J

1 1-0

1200

1 21 5

1 230

1 24:,

1 300

1315

1 345

100

1 41 5

1*30

1445

150J

151

j1530

1 it

b1 1,

001-1

51o3u

1 'J45

1 70 c

1730

1 ;.

1 5

1 *7 J \J

1 y4;

2.15

2u-+ 5

240 0

M AY

210 j G 0

OiOu

0:>1 5

C i 3

J0545

0 sO

jOo3 j

________ -_-_ __ s

a

G1SER

|

0.0

0.01

O.Ca

J . 1

C.

0.34

0.3.

1 .05

1.22

1 . 4o

1.50

1 .5

11 .51

1 .51

1 .51

1.51

1 .5

11.51

1.51

1.51

1.51

1.51

1 .5

11 .5

11.^1

1.51

1.51

1 .5

11 .5

11 .5

11.51

1 . 51

1.52

1.52

1 . c G

1 . S3

2 .

1 i

2.2-

.2.^0

2.3-

|

E N

0 M

5I

I

A Z C U M

. ft E

I u-iT ED

PRECIP.

IN. C.O

0.01

0 0 6

C.12

0.34

0.53

1 .05

1 .2

21 .4.

1 .50

1 .51

1 .51

1 .5

11 .51

1 .51

1 .5

11 .51

1 .51

1 .51

1 .51

1 .5

11 .5

11 .51

1 .51

1 .5

11 .51

1 .51

1 .51

1 .5

11 .5

11 .51

1 .52

1 .52

1 .50

1 . o3

2.13

2.2*

2.3j

2 . 34

DISCHARGE

I\

CF3

2.3

3.1

3.1

2.9

2.9

2.9

? . o

2.9

2.9

2.9

2 . 9

2.9

4.9

6.3

9.3

16.-

024.0

29.0

53.0

-3.3

S5.0

79.0

71 .0

57.0

49.0

43.

C33.0

26.C

22.0

20. C

13.0

13.0

13.0

9.9

9.9

5.6

9.6

9.3

9.3

ACCUM.

RUNO

FF

IN.

0.0007

0.0025

0.003s

0. 0043

0. 0044

0.0045

0.0046

0.0047

0.0043

0.0340

0.0050

0.0051

0.0053

0.0055

0.0053

0.00o3

0.0071

O.OOSO

0 . 0 J 9 3

0.0120

0.0153

0.0175

0.0201

0.0219

0 . u

2 42

0. 02 7o

0.03^6

0.0332

J.0350

0.0363

0. J408

0.0455

0.0455

0.0509

0.0512

J.0515

0.051S

0.0523

0.0527

C> O O O O C) O CJ Oxj C/' &' O; (.' ~*J ~si ~*j OO *'- »^J ' O + - VAI » *"O ui O Ui C_i \ji O u. ui

f- *>*--*>*-

II O O O O O O O LJ O O O O O O O O O O CJ O O O O OII

II IIII O C_ l_) O O O O C

II *> *- O> vji O <- O s

oooooooc.

-»-»OOCJOC.OC.

o ^ S r j S ô ^ ^ o

C. 0 C' O

0 0 C ) O

0

o

a

o o

o ov_n <-

0

O

4

O O

o c Wl L.-I

O t\J

i

i1 XJ i C-

1 2 0 1 111 111

m

e- n

c:

*

08158820 BEAR CREEK AT FARM ROAD 1626 NEAR MANCHACA, TEX. (Flood-hydrograph partial-record gage)

LOCATION. Lat 30 0 08'25", long 97°50 I 50", Travis County, at culvert on Farm Road 1626, 1 mile west of Manchaca, Texas.


PERIOD OF RECORD. July 1979 to current year.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 16,800 ft3 /s June 11, 1981 (gage height, 15.60 ft).

EXTREMES FOR CURRENT YEAR. Maximum discharge, 397 ft3 /s May 21 (gage height 4.87 ft).

-98-

O O O O O O O

O O O O O O O O O O O O O O

O O T- fM 'M to --t «r\O O O O O O O O

O O O O O <" ) O O 'O O O Oo o o o o o o o

O O O O '3 O

a o o 'o o o D o o o o ::> o

O O O O O O O O O D O O O O O O O O O O O O O O

a o o o o o o o o o o a CM o o o o o o o o o o o -j- ai CM -o ft o -t «- T- ft <j o o o o

ft -4- -t ^t * -* ft ft r\l T r- r>J -.» O ml

r-> O O o O O O

O * r r" r *

T- * ,-\i j f*< tn r\i o r r- .'M r\i CM rj :\j -g i g O O o r PO oo O r>J -t u^ 1/1 ir\ IA i/-\ i/^> u\ i.-» >n

.) -.t r- r«-

O O O Cl O r- T- r- T- fM 'J f O <M

f\j r") tA A i j 'A '_> 'A '"-3 m <'J> «^> <*"D n O \s\ < "3 v* ". > p n r-> -\j ~3 -~3 r~> f^ î .-3 «n O IA <~D A ~'} .'.J *"> '"I O > «A 'AO -t T PA 4- T) t- t T PA Pt '.I r- ft .T O r- -t ^J n "1 O O O r"3 O r- rt * <~> r- t-1 n t~ Pt i T (t t

-J O r 'J r- r r- , T ^- T r- , oj f\j r\j oj r^j /-^ rvl f\i OJ <T fT O ' J C> TJ {'.I O <".» C) f J O C"' Of.) O ( ) O O ' .j

-GOT-

I INJ fNj » * » * * *

4- * NO c,j Cr U v/- v/iI O L/J + * (_J oj c-4 ot, c. u> v- o < c. c.

t it t t t- u<

i\j INI r\i ru

rvj ro ro roIN> INJ INJ INJ

»-» » ru rv» INJ rvi INJ oJ rj ivi -»-» » i/.' v.'i -\J o -\» ~o o r\j oj wi a -o -\J o vo * <} UM 4^- -«J vO '^4 >O OU I\J *j C" Ul ^J Ul OJ <> UJ o o o o o o o o cj o o a o cj o a o

O O O O O CJ O O CJ O O O O O CJ O O O CJ O

-»-»-»-»-»-» C- C. O O O O O C> C. Cj O CJ C. C'

C./ NO *xj *4j V/1. Ov> 4 "^ O" 4 f\) CJ

INJ fvi » »

Cw

II O II Tl

XJ P>c oiS Oo c.

11 .£

Ill IIAJ II


08158825 LITTLE BEAR CREEK AT FARM ROAD 1626 NEAR MANCHACA, TX (Flood-hydrograph partial-record station)

LOCATION.--Lat 30°07'31", long 97°51'43", Hays County, Hydrologic Unit 12090205, at downstream side of culvert on Farm Road 1626 and 2.1 mi southwest of Manchaca.

DRAINAGE AREA. 21.0 mi 2.


PERIOD OF RECORD.--July 1979 to current year.

GAGE.--Flood-hydrograph recorder and crest-stage gage. Datum of gage is 668.67 ft Nstional Geodetic Vertical Datum of 1929.

REMARKS.--Additional storm rainfall-runoff data for this site can be obtained from the report "Hydrologic Data for Urban Studies in the Austin, Texas Metropolitan Area, 1983." A recording rain gage is located in the watershed.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 5.530 ft 3 /s June'11, 1981 (gage height. 12.30 ft).

EXTREMES FOR CURRENT YEAR.--Maximum discharge. 814 ft 3 /s May 21 at 0900 hours (gage height, 6.45 ft).


PERIOD OF RECORD.--Chemical, biochemical, and pesticide analyses: October 1978 to current year. Radiochemical analy ses: October 1979 to September 1980.

WATER QUALITY DATA. WATER YEAR OCTOBER 1982 TO SEPTEMBER 1983

DATE

FEB09...

SEP19...

TIME

1355

1210

STREAM- FLOW, INSTAN TANEOUS (CFS)

.59

381

SPE CIFIC CON DUCT ANCE (UMHOS)

518

143

PH(STAND ARD

UNITS)

7.8

7.6


13.0

23.0


50

80

TUR BID ITY (NTU)

85

57

OXYGEN,DIS

SOLVED (MG/L)

10.2

7.4

OXYGEN,DIS SOLVED (PER CENT

SATUR ATION)

100

88

OXYGEN DEMAND, BIO CHEM ICAL. 5 DAY (MG/L)

3.3

2.4

COLI-FORM.FECAL,0.7UM-MF (COLS./ 100 ML)

K34000

14000

STREP TOCOCCIFECAL.

KF AGAR (COLS.PER

100 ML)

39000

51000

DATE

HARD NESS (MG/L AS CAC03)

FEB09... 240

SEP19... 66

HARD NESS,


101

7


92

24

MAGNE SIUM, SODIUM. DIS- DIS SOLVED SOLVED (MG/L (MG/L AS MG) AS NA)

2.6

1.5

11

1.5

SODIUMAD

SORP TION

RATIO

POTAS- ALKA- SIUM, LINITY

FIELD (MG/L AS

DIS SOLVED (MG/L AS K)

3.6

4.4


CAC03) AS S04)

140

59

84

17

CHLO RIDE. DIS SOLVED (MG/L AS CL)

31

2.3

FLUO- RIDE. DIS SOLVED (MG/L AS F)

.20

SILICA. DIS SOLVED (MG/L AS SI02)

9.

13

DATE

FEB09...

SEP19. ..

SOLIDS, SOLIDS,SUM OF RESIDUE SOLIDS.CONSTI- AT 105 VOLA-TUENTS. DEC. C, TILE,

DIS- SUS- SUS-SOLVED FENDED FENDED(MG/L) (MG/L) (MG/L)

318

99

101

51

NITRO GEN,

NITRO GEN.

NITRATE NITRITETOTAL TOTAL(MG/L (MG/LAS N)

.36

.13

AS N)

.040

.070

NITRO GEN,


.40

.20

NITRO GEN,


.060

.080

NITRO GEN.


1.3

1.1

NITRO GEN, AM MONIA + ORGANIC TOTAL (MG/L AS N)

1.40

1 .20


.470

.140

CARBON .ORGANIC TOTAL (MG/L AS C)

9.0

12

DATE

FEB09. ..

SEP19. ..

TIME

1355

1210

ARSENIC BARIUM,DIS- DIS

SOLVED SOLVED (UG/L AS AS)

(UG/L AS BA)

30

14

CADMIUMDIS

SOLVED (UG/L AS CD)


COPPER. DIS SOLVED (UG/L AS CU)

IRON. DIS

SOLVED (UG/L AS FE)

36

110

-101-


08158825 LITTLE BEAR CREEK AT FARM ROAD 1626 NEAR MANCHACA, TX--Continued

WATER QUALITY DATA. WATER YEAR OCTOBER 1982 TO SEPTEMBER 1983

DATE

FEB09...

SEP19...

LEAD.DISSOLVED(UG/L AS PB)

MANGANESE.DISSOLVED(UG/L AS MN)

MERCURYDISSOLVED(UG/L AS HG)

SELENIUM.DISSOLVED(UG/L AS SE)

SILVER.DISSOLVED(UG/L AS AG)

ZINC.DISSOLVED(UG/L AS ZN)

21 12

12

DATE

FEE 09...

TIME

1355

AME-TRYNETOTAL


ATRA- CYAN-ZINE. AZINETOTAL TOTAL(UG/L) (UG/L)




<2.0

PROME- PRO- SIMA- SIME- SIME-TRYNE PAZINE PROPHAM SEVIN. ZINE TONE TRYNETOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL

DATE (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L)

FEB 09... <2.0 <2.0

-102-

-eoi-II II

II II ^2 I rvj r\j » » ci O Cj O c > o r > c< o O O O c j <_> o o O i> r\j r\j f\j r<j r,j n > r^ t\j r-j AJ r\j o O O i. ) c > o s> i * --» i- c o ix o c-. O' r,< ix. rv.> r\ > » » » c.i c -. c? <.<-< -T o. OJ IM r\j » » » » c Ci -c> r- c^ » o c.' -< i c, c_j LJ v_> i -F- e>i » O *- 01 » C) f OJ » O 4- oj » t_> rj 4- i..j > o *- oj C: * Ox ( > OJ ^-- » o i o r r i c >-'i v,p> o e-- o v. o v c' -i cj w C' >./> c- v. c.; -* C o o v. rj v c v c en o en i/> r vi v cj »I -» O

i i i

i

i i i -\i i' t i ^ f\^ r-j r»j p.> fv* r\.» r\^ r\j iu rv, ro r\> r\j PO r^ r j ivj ro r\) t\, r\j r\j r^ r^ r« * c/ C1 c* O O O CO o O

i '.', _> C«.' ,r> O' 01 a. C' ir- '-0 c . ; >> 00 :x o^ o> oci fx: r»j >j, ex r»» C-; on (X '<j ~-j OJ vi a r\) » » » o ri O

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I

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II

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1 1 1

-> 1 r~ 1

1 I

1

1 1

I

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1

1

1C.1

t>

o

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*:

CI

Jl

Mi

111

1 1

1 11 1

1 1 1 1

11 1 1 1 1 1 I

1 I

: T3 r.T) t-

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TJ n

0Tl t

A C

X C "1

r~ >--t ( < r- rp

ir 111 I-

("i

in rr

t- (

i->X)

O

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r-'

oI

ci

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C/l

CJ

î

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N

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1 1-H 0

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n

c-

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Ill

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L^

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u

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08158840 SLAUGHTER CREEK AT FARM ROAD 1826 NEAR AUSTIN, TX

LOCATION.--Lat 30°12'32", long 97°54'11", Travls County, HydroLogic Unit 12090205, 1.7 mi south of the intersection of U.S. Highway 290 and Farm Road 1826 and 11.9 mi southwest of the State Capitol Building in Austin.

DRAINAGE AREA.--8.24 mi2.


PERIOD OF RECORD. January 1978 to current year.


REMARKS.--Water-discharge records good. No known regulation or diversion. There is a recording rain gage in the watershed.

AVERAGE DISCHARGE.--5 years (water years 1979-83), 5.80 ft 3 /s (9.56 in/yr), 4,200 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 4,080 ft 3 /s June 11, 1981 (gage height, 10.79 ft); no flow at times most years.

EXTREMES FOR CURRENT YEAR.--Maximum discharge, 933 ft 3 /s Aug. 8 at 1330 hours (gage height, 6.88 ft), no other peak above base of 500 ft 3 /s; no flow for several days in October and November.



12345

678910

1112131415

1617181920

2122232425

262728293031


CAL YRWTR YR

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00.000.00.00

.000.00.00


.00

.03

.01

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.11

.02

.00

.00

.00---

.17.006.11.00

.001.00.3

771 .87855.08

.00

.02

.48

.06

.05

.03

.03

.03

.02

.04

.14

.06

.06

.08

.08

.07

.07

.08

.08

.08

.08

.08

.08

.08

.07

.07

.27

.21

.15

.09

.14

2.88.093.48.00.01.015.7

MEANMEAN

.68

.37

.35

.38

.38

.38

.38

.38

.38

.35

.34

.34

.34

.34

.27

.27

.27

.34

.34

.34

.59

.52

.52

.52

.46

.46

.46

.46

.46

.46

.46

12.59.41.68.27.05.0625

2.11 MAX2.34 MAX

.52

.52

.46

.46

.74

.66

.66

.682.71 .1

1 .11 .11 .11 .04.0

4.63.83.73.74.1

4.14.14.14.13.7

3.43.43.1......---

66.702.384.6.46.29.30132

249 MIN93 MIN

3.12.92.97.26.2

4.43.73.43.13.1

2.92.92.93.13.4

117.25.75.75.7

4.64.4

351917

932718161514

353.511 .4

932.91.381 .60701

.00

.00

129.08.48.36.6

5.75.34.94.44.2

4.03.73.73.13.1

2.92.92.92.92.9

2.92.92.82.62.6

2.42.42.12.02.0

125.64.19

122.0.51.57249

CFSM .26CFSM .28

1 .91.61 .41 .1.97

.82

.79

.64

.59

.34

3.0.93.73.66.94

.76

.611 .1.68

14

232.01 .0.86.70

.64

.65

.58

.57

.52

.46

65.042.10

23.46.26.29129

IN 3.48IN 3.86

.52

.52

.52

.545.6

.7

.6

.2

.1

.1

.97

.90

.823.92.0

4.82.72.32.01 .9

1 .81 .61 .61 .51 .7

1 .41 .21 .0.97.79---

50.251 .685.6.52.20.23100

AC-FTAC-FT

.80

.62

.52

.50

.49

.52

.45

.41

.38

.36

.32

.32

.48

.74

.60

1 .31 .4.73.61.52

.52

.46

.45

.41

.38

.40

.38

.36

.33

.29

.27

16.32.531 .4.27.06.0732

15301700

.26

.24

.22

.21

.20

.18

.2851

1 .41.0

.89

.82

.82

.82

.82

.82

.82

.82

.82

.82

.82

.82

.73

.64

.59

.59

.59

.72

.72

.59

.63

70.702.28

51.18.28.32140

.53

.52

.52

.49

.43

.38

.37

.24

.48

.27

.24

.24

.20

.18

.18

.18

.1825278.7

5.03.22.82.62.2

2.22.01.91 .61.5---

91.333.04

27.18.37.41181

-104-


08158840 SLAUGHTER CREEK AT FARM ROAD 1826 NEAR AUSTIN, TX--Continued


PERIOD OF RECORD.--Chemical and biochemical analyses: June to September 1983.



TIMEDATE

JUN09. ..

SEP19. ..

DATE

JUN09...

SEP19. ..



PH(STANDARD

UNITS)

TEMPERATURE(DEC C)


TURBIDITY

(NTU)

OXYGEN,DIS

SOLVED(MG/L)

DISSOLVED(PERCENT

SATURATION)


FORM,FECAL,0.7UM-MF(COLS./100 ML)

TOCOCCIFECAL,

KF AGAR(COLS.PER

100 ML)

1115

1300


1.2

40

HARDNESS.


749

426


7.7

8.0


23.5

23.0


<1

25

SODIUMAD

SORPTION

RATIO

2.0

19

POTASSIUM,DISSOLVED(MG/LAS K)

12.6

7.7

ALKALINITYFIELD(KG/LASCAC03)

153

92


AS S04)

2.5

1.4


220

4300


400

14000

SILICA,DISSOLVED(KG/LASSI02)

340

190

77

44

92

56

26

13

23

12

.7

2.2

260

150

73

51

47

22

DATE

JUN09...

SEP19...


DISSOLVED(MG/L)

SOLIDS,RESIDUEAT 105DEC. C,SUSPENDED(MG/L)

SOLIDS.VOLATILE,SUSPENDED(MG/L)

NITROGEN,


NITROGEN,


NITROGEN,


NITRO- NITRO- NITRO- GEN.AM-GEN. GEN, MONIA + PHOS-

AMMONIA ORGANIC ORGANIC PHORUS,TOTAL TOTAL TOTAL TOTAL(MG/L (MG/L (MG/L (MG/LAS N) AS N) AS N) AS P)

425

255 28 .18

<.020

.020 .20

.090

.040

.21

.46

.30

.50

.010

.020

.20

.10


1.4

5.4

6.8

8.7

DATE

SEP 19. ..

TIME

1300

ARSENICDIS

SOLVED(UG/L AS AS)

BARIUM,DIS

SOLVED(UG/L AS BA)

CADMIUMDIS

SOLVED(UG/L AS CD)

CHROMIUM.DISSOLVED(UG/L AS CR)


IRON,DIS

SOLVED(UG/L AS FE)

<1 31 <1 10 <3

DATE

SEP 19. ..

LEAD,DIS

SOLVED(UG/LAS PB)

MANGANESE,DIS

SOLVED(UG/LAS MN)

MERCURYDIS

SOLVED(UG/LAS HG)

SELENIUM,DIS

SOLVED(UG/LAS SE)

SILVER,DIS

SOLVED(UG/LAS AG)

ZINC,DIS

SOLVED(UG/LAS ZN)

<1 <1

-105-

-901-

^^..^---^----.^-^^--.^-^-.^-^--^-.-.^-.-oocjo^

C"1 v.'' vi V' C- C_' c".: O vi C v.ci C O vi C' v.' c._> t . i- . O v C-> v.-1 C > *-n d vi c_> vi C ; v C vi c, vi V v." V c.,- rvjC.)

^ _ ,_i__i_i_»_._»_»_»_.^_i__i_»__l_1___,_k-1_4_»_.-1-1nrjr.r, o , , o o

VI VI VI VI VI VI V/l VI VI VI VI VI V»"> VI V-H \yi VI VI VI VI VI Vi VI 'VI VI t^ J> C/4 * (_l "*^ -f~- rvj PO -^ CJ C_> CT.'

11 C1 I11 r Ii ei i1 K

i ;1 !

1 1 -1111 -»

i r" i i--i iiii - iiii1

iiiii i i

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1 111

11 "i11 C1i r

1 Ci i r

i ,1

;11111 11

1

111111

1 1

11111111 1 1 11 ~\1 .<1 n l1 -? r1 t- \ "I i

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£

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08158860 SLAUGHTER CREEK AT FARM ROAD 2304 NEAR AUSTIN, TX (Flood-hydropraph partial-record gage)

Location.--Lat 30 009'43", long 97 049'55", Travis County, on downstream side of bridge on Farm Road 2304 and 9.4 miles southwest of the State Capitol Building in Austin.

DRAINAGE AREA. 23.1 mi 2.

PERIOD OF RECORD. March 1978 to current year.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 8,340 ft3/s June 11, 1981 (gage height, 12.40).

EXTREMES FOR CURRENT YEAR. No flow for entire year.

-107-

08158880 BOGGY CREEK (SOUTH) AT CIRCLE S ROAD, AUSTIN, TEX. (Flood-hydrograph partial-record gage)

LOCATION. Lat 300 10'50", long 97 0 46'55", Travis County, on downstream side of bridge on Circle S Road and 7.0 mi south of the State Capitol Building in Austin.


PERIOD OF RECORD. April 1976 to current year.

REVISED RECORDS. Open-file report 82-506: 1979 maximum.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,920 ft3 /s (gage height, 10.56 ft).

EXTREMES FOR CURRENT YEAR. Maximum discharge, 1,740 ft3 /s Aug. 8 (gage height 7.83 ft).

-108-

-601-

n r. r ! . » _>II * * l_*i <_» Jl OJ O.

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c/i cf> cr ui f ^ *- w oj c-j ixi » -» c> o o Cj o o c o o o c- c. r.j o o o c o

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-110-


08158920 WILLIAMSON CREEK AT OAK HILL, TX

LOCATION. Lat 30°14'06", long 97°51 "36", Travis County, Hydrologic Unit 12090205, on downstream side of bridge on U.S. Highway 290 in Oak Hill, 0.8 mi east of the intersection of U.S. Highway 290 and State Highway 71, and 7.7 mi southwest of the State Capitol Building in Austin.



PERIOD OF RECORD. January 1974 to February 1977 (periodic discharge measurements only), January 1978 to current year.

GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 798.68 ft National Geodetic Vertical Datum of 1929 (levela from city of Austin bench mark).

REMARKS. Water-discharge records fair. Station is part of a hydrologic-research project to study rainfall-runoff relation for the Austin urban-rural areas. Station is equipped with automatic water-quality sampler. Two recording rain gages are located in the watershed.

AVERAGE DISCHARGE. 5 years, 4.71 ft'/s (10.15 in/yr), 3,410 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 4,170 ft'/s June 11, 1981 (gage height, 8.55 ft); no flow for many days each year.

EXTREMES FOR CURRENT YEAR. Maximum discharge, 756 ft 3 /s Aug. 8 at 1330 hours (gage height, 4.36 ft), no other peak above base of 500 ft 3 /s; no flow for many days.



12345

6789

10

1112131415

1617181920

2122232425

262728293031


CAL YRWTR YR

.00

.00

.00

.00

.00

.00

.01

.00

.00

.00

.00

.00.

.00

.00

.00

.00

.00

.00

.00.00

.00

.00

.00

.00

.00

.00

.00

.00.00.00.00

.01.000

.01

.00.000.00.02


.00

.00

.00

.00

.00

.00

.00.00.00.00

.00

.00

.00

.00

.00

.00

.00

.00

.01

.00

.00

.00

.02

.11

.00

9.51 .1

.00

.00

.00

10.74.369.5.00.06.06

21

508.31801 .70

.00 4.0

.41 3.06.9 2.7

.00 2.7

.00 2.7

.00 2.7

.00 2.4

.00 2.3

.00 2.2

.16 2.0

.89 2.0

.00 2.0

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.83

.17

.29

.131.5

.6

.7

.2 1.5

.2 1.5

.2 1.5

.1 3.5

.8 1.8

.1 1.7

.0 1.6

.0 1.5

.1 1.8

.1 1.5

.8 1.5

.7 1.5

.5 1.7

.5 1.7.7 3.9 2.8

.7 2.9 6.2

.5 2.7 3.1

.0 2.3 2.9

.9 2.3 2.7

.7 2.3 2.7

.2 2.0 2.4

.0 2.0 2.4

.7 1

.7 1

.5 1

.5 1

.5 1

.5 1

.5

.2

.2

11.28 62.0 53.36 2.00 1.

.8 20

.7 5.5

.7 4.8

.7 32

.7 5.9

.6 4.84.44.13.5

.9 134.593 4.34

6.9 4.0 5.1 32.00 1.2 1.06 .32.07 .37

.0 1.531 .6932 .79

22 123 107 267

MEAN 1 .39 MAX 194MEAN 2.20 MAX 49

MIN .00MIN .00

3.43.02.83.02.8

3.02.92.72.42.3

2.32.32.83.13.0

3.03.13.22.82.7

2.72.1

.7

.5

.5

.5

.7

.7

.5

.4

73.92.46

3.41.4.39.44147

CFSM .22CFSM .35

.98

.85

.63

.58

.31

.21

.17

.11

.16

.88

7.0.00.00.00.03

.00

.001.9

.0135

393.92.72.22.1

2.01.92.02.22.82.9

112.523.63

39.00.58.66223

IN 3.00IN 4.73

3.6-3.93.94.4

18

4.62.82.52.52.4

2.62.62.48.62.9

4.42.62.32.32.0

2.01.71.71.72.1

1.51.51.41.21.0

97.13.24

181.0.51.57193

AC -FT1 AC -FT

1.21.0

.85

.841.4

.97.70.70.68.57

.55

.93

.851.71.7

7.72.41.2.85.57

.57

.46

.46

.70

.70

.46

.37

.17

.10

.01

.00

31.361 .017.7.00.16.19

62

10101590

.00.00.00.00.00

.001.8

35.29.20

.14

.07

.14

.02

.00

.00

.00

.00

.00

.00

.00

.00.00.00.00

.00

.004.0

.05

.00

.00

41 .711.35

35.00.21.25

83

.00

.00

.00

.00

.00

.0013

.0311

.09

.00

.00

.00

.00

.00

.00

.00494832

9.63.91.71 .21.0

.70

.57

.37

.29

.23

172.685.76

49.00.91

1 .02343

-111-


08158920 WILLIAMSON CREEK AT OAK HILL, TX--Continued


PERIOD OF RECORD.--Occasional discharge measurements: January 1974 Co current year. Chemical, biochemical, and pesti cide analyses: January 1974 to current year. Radiochemcial analyses: October 1979 to September 1980.


DATE

FEB09...

MAR01...

MAY20...20...20...20...20...20...

AUG08...08...08...08...08...08...

SEP .07...07...07...09...

DATE

FEB09..-

MAR01...

MAY20...20...20...20...20...20...

AUG08...08...08...08...08...08...

SEP07...07...07...09...

TIME

1300

1020

143814531508152315381553

123413001315133013451400

*

1700171517301525

HARDNESS(MG/LAS

CAC03)

140

340'--

81--

_-----.._-__

..79__61

STREAM-FLOW,

INSTANTANEOUS(CFS)

14

1.71"17

157396352452348

117726676443254145

117380145233

HARDNESS,


24

54

_. 7

------_.--..

..5

..12


300

654

299181151175214226

206163145138150152

179

132


41

93

----

25--.-

-- ...-.-

..25

__19

PH(STANDARD

UNITS)

7.6

8.2

__--

7.9--..

--__ .-..__

7.8--

7.7

MAGNESIUM,DIS

SOLVED(MG/LAS MG)

10

27

--__

4.6 --

..----..

__4.1__

3.3

TEMPERATURE(DEC C)

13.0

16.0

___---- --

-- ----

.-

SODIUM,DIS

SOLVED(MG/LAS NA)

7.2

16

----

4.8--

-- --

3.8

3.1


15

5

___.40----..

--..

130 ..

15__7080

SODIUMAD

SORPTION

RATIO

.3

.4

__.2

--.. --

.2 .2

TURBIDITY

(NTU)

540

.80

.__.

1700----

______

880_-__

1500.-

1600570

POTASSIUM,DIS

SOLVED(MG/LAS K)

2.2

.8

____

3.1----

-- --

_-3.2..

2.8

OXYGEN ,DIS

SOLVED(MG/L)

9.4

13.8

__..--------

-- -- --

------

ALKALINITYFIELD(MG/LAS

CAC03)

120

290

----

74 --

-- -- --

74

49

OXYGEN , DIS SOLVED(PERCENT

SATURATION)

93

145

__..--------

---.--------

------


AS S04)

22

43

--

11----

-- --

13

..11


4.4

.9

35--

14149.97.0

12------

4.84.3

----

6.8


16

30

----

5.3

-- --

6.1

4.8

COLI- FORM, FECAL ,0.7UM-MF(COLS./100 ML)

19000

80

52000280000200000

----

K230000

--..--------

------

120000

FLUO-RIDE,DIS

SOLVED(MG/LAS F)

.20

.20

----

.10 --

---- --

.10--

<.10

STREP TOCOCCIFECAL,

KF AGAR(COLS.

PER100 ML)

K120000

84

160000500000840000

----

340000

---- ------

----

140000


4.1

2.8

------

4.7

------------

5.0--

4.3

-112-


08158920 WILLIAMSON CREEK AT OAKHILL, TX--Continued


DATE

FEB09...

MAR01...

MAY20...20...20...20...20...20...

AUG08...08...08...08...08...08...

SEP07...07...07...09...

SOLIDS, SOLIDS, SUM OF RESIDUE CONSTI- AT 105

DEC. C,SUS

PENDED (MG/L)

TUENTS,DIS

SOLVED (MG/L)

SOLIDS,VOLATILE,SUS

PENDED(MG/L)

NITROGEN.


NITROGEN,


NITROGEN,


NITROGEN,


NITROGEN,




CARBON,ORGANICTOTAL(MG/LAS C).

175

387

103

105

78

618

3

2310

530

3110

3330952

DATE

FEB09...

MAR01...

MAY20...

AUG08...

SEP07...09...

53

<1

572

96

491

395169

TIME

1300

1020

1438

1300

17001525

.48

.46

.35

.34

.51

.020

<.020

.140

.150

.160

.190

.50

<.10

.60

.50

.50

.70

.090

.080

.560

.560

.420

.450

2.0

.42

9.4 9.4 4.9

2.7

2.10

.50

10.010.05.30

3.10

.45

.26

.45

.45

.22

.34

.44

.27

ARSENICDIS

SOLVED(UG/LAS AS)

.050

.040

.050

.050

.080

.060

.060

.130

BARIUM,DIS

SOLVED(UG/LAS BA)

.50

.30

.50

.50

.30

.40

.50

.40

CADMIUMDIS

SOLVED(UG/LAS CD)

.120

.090

.060

.060

.290

.080

.050

.380


5.47.9

2.1

1.9

7.7

7.01.8


5.508.00

2.20

2.00

8.00<.207.002.20

IRON.DIS

SOLVED(UG/LAS FE)

.390

.100

.900

.800

.00

.530

.810

.30

.570

.470

.40

.30

.110

.020

16

2.5

377144

21

3452

30

21

18

26

32

<100

<100

10013

<1

<1

<1

<1

<1 <1

<10

<10

<10

<10

<10 10

36

<3

50

120

3080

DATE

FEB09. ..

MAY20...

AUG08...

DATE

FEB09...

MAR01 ...

MAY20...

AUG08...

SEP07...09...

TIME

1300

1453

1315

LEAD,DIS

SOLVED(UG/L AS PB)

MANGANESE,DIS

SOLVED(UG/L AS MN)

MERCURYDIS

SOLVED(UG/L AS HG)

SELENIUM,DIS

SOLVED(UG/L AS SE)

SILVER,DIS

SOLVED(UG/L AS AG)

ZINC,DIS

SOLVED(UG/L AS ZN)

AME-TRYNETOTAL

<10

10

102


<.1

<.1

<.1

<.1 <.1

ATRA- ZINE, TOTAL (UG/L)

<1

<1

<1

<1 <1

CYAN- AZINE TOTAL (UG/L)

<1

<1

<1

<1 <1


7

<3

10

10

104


<2.0


5.3

DATE

FEB09. . .

MAY20...

AUG08...



<2.0

SEVIN,TOTAL(UG/L)

<2.0



.70


-113-

(_>

i _i _i _i O Cl Cj i^ ..l CJ _J CJ Ci O l_^ C'

<J- <j J- o o u "» <> <» ov > o ir ir <> > » «» t» !» v/i v.', K> » o o o { ^j I.M »-» » »_»_»_. i .1 o-sj --,, -si ~vj -sj Ln t.,1 v./"' W V-T V/ W' V-"1 4" £" -V ^" ^ U! -* ~>J r1, X1 f * ' °4> W" L*J ^ V.^ t ~) ~>J W^ VI \Ji ^ * ' O

o i> O- u- u «./- O- () > u O 1.1 O O u i> LT >ji oi wi ui Ji l^rvj »-»-»-» <>j *- »-* » » O ( J rD (_j c_, c.j r. i. j c j c o o c_ c, o c. < j i_j c- O o CJ -*j ô c« t- » c ' r -*l u- cv. r. 01 * vji u; <u-i i^- ~«j t -o i/j

*- o o o o o cj o cj o o o o o cj cj o o cj o o o o o o *^ o -o o nj r\j ui ui -g ^j ^ cj CD o

C. O I.' O (_- CJ CJ CJ C (_« C- C> C) C, O O O LJ C-. O CJ Cj O l_> f_> C C_> C- O O C_) O O O l_i C, CJ O ti

r\j rv> tx, -» «-»-»->-»-»-»-»-» C_, O O C: O C' O O O CJ Cj Ci CJ C, O O O O C' O O C LJ C> O C./ O O O H.) 0) -N! ^1 -f- 04 I\J ru -» C) vO -vl 0 a v/i ^ c>J fXJ ro -» O O O (O O O O O O O O O O C -vj O u O o >J CX ^J 0" -^ Cfi en » -M *> G UJ VJi O (X- C- * xO O * * ^ c>. CAI C>i IX, t\.) ' » O

1 1 1 1 1

1

11 1 1

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1 (J'

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1

1 l/-<

1 l/>

1 1 1

1

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1

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1

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1

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1 1 1 1 1

1 11 1 1 1 o

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c,->

III

J^

LI

u<

rn

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11

1 1

1 1 1 1 1 1 1 1 1 1 1

1 11 11

1 1

2. o nAJ 1-

m c

n

c

^

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c.1 -1

f.t-lr~r

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r.71

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t/1

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-o (>- I_M

1 t- < o o

\ ~^.

C1

CA< o

a t>

(.-1(II

c> o

J Ui s1

08158930 WILLIAMSON CREEK AT MANCHACA ROAD, AUSTIN, TEX. (Flood-hydrograph partial-record gage)

LOCATION.--Lat SO^S'ie", long 97°47 I 36", Travis County, on downstream side of bridge on Manchaca Road, 0.7 mi south of the intersection of Ben White Boulevard and Manchaca Road, and 4.9 mi southwest of the State Capitol Building in Austin.


PERIOD OF RECORD. August 1975 to current year. Periodic measurements only, May to August 1975.



EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 8,490 ft3 /s June 11, 1981 (gage height, 16.00 ft).

EXTREMES FOR CURRENT YEAR.--Maximum discharge, 1,670 ft3 /s Aug. 8 (gage height, 7.25 ft).

-115-

-911-

I I / CM C- V.

O CJ c > CJ C.' t> » C . c O C . -c C" 4 L/i » CJ C.. Ui c. O C IX

Cj O '!' cj

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C ' O C.j 4 < C.-' (\- U" Cj U^ 4~ M C C-)

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O O O Cl ci CJ C / O CJ CD O

i./i en <-i v/i ciien wi en wi c/i t- 4'- * -

ui O- O i\J -» O-

f\J » V" cn O

M O O CJ O O O O O O CJ O O CJ O CD O CJ O 11 O O O O OJ en «- O O ~>J O r ) C" CO ->4 ^J r J -» o o--

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08158970 WILLIAMSON CREEK AT JIMMY CLAY ROAD, AUiTlN, TX

LOCATION.--Lat 30 e 11'21", long 97 e 43'56", Travis County, Hydrologic Unit 12090205, at Jimmy Clay Road, 0.5 mi south east of the intersection of Jimmy Clay and Nuckles Crossing Roads, and 5.9 mi south of the State Capitol in Austin.

DRAINAGE AREA.--27.6 mi2.


PERIOD OF RECORD. November 1974 to September 1975 (periodic discharge measurements only), September 1975 to current year.

GAGE.--Water-stage recorder. Datum of gage is 493.88 ft (revised) National Geodetic Vertical Datum ot 1929 (city of Austin bench mark). Prior to Oct. 1, 1982, at datum 3.30 ft higher.

REMARKS.--Water-discharge records good. No known regulation or diversion in watershed. There are three recording rain gages located in the watershed. The station is part of a hydrologic research project to study the rainfall- runoff relationships for the Austin urban-rural areas.

AVERAGE DISCHARGE. 8 years, 9.09 ft 3 /s (4.47 in/yr) , 6,590 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 14,100 ft 3 /s Ju'ne 11, 1981 (gsge height, 20.55 ft, revised), present datum; minimum daily, 0.03 ft 3 /s Sept. 16, 24, 1977.

EXTREMES OUTSIDE PERIOD OF RECORD.--The maximum flood since 1869 occurred on Sept. 9 or 10, 1921, stage and discharge not determined.

EXTREMES FOR CURRENT YEAR.--Peak discharges above base of 500 ft 3 /s and miximum (*):

Date Time Discharge Gage height (ft 3 /s) (ft)

May 20 1630 May 21 1030 600

8.328.25

Minimunm daily discharge, 0.55 ft 3 /s on Nov. 22.



12345

6789

10

1112131415

1617181920

2122232425

262728293031

TOTALMEANMAXKINCFSKIN.AC-FT

CAL YRWTR YR

1.61.21 .31 .01 .2

1.21 .51.3.79

1 .5

.71

.89

.66

.56

.64

1.31 .31 .31 .62.1

2.42.42.2.87.89

1.31 .51 .1.77.74.81

38.631 .252.4.56.05.0577


.691.36.41 .1.85

.74

.74

.80

.81

.81

.86

.85

.94

.931 .0

1.21 .21.31 .41.3

1 .1.55.76

1 .41 .4

34152.31 .51.4

84.632.82

34.55.10.11168

1378.5221 73.56

1 .51.34.42.21 .8

1 .71 .71 .81 .62.1

5.53.52.32.12.1

1 .81 .92.02.02.0

2.11 .91 .61.51 .6

1 .74.44.03.02.93.3

73.32.365.51.3.09.10145

MEANMEAN

264.63.42.72.1

2.01 .81.82.32.5

2.22.01 .92.02.0

2.12.19.5

1 14.9

6.93.52.52.32.0

2.02.02.12.22.12.1

118.63.83

261 .8.14.16235

3.785.95

2.02.12.42.7

29

3.11 .71 .5

294.3

2.41.91 .91.9

18

5.62.81 .91 .72.5

2.31.92.01 .81 .9

1.61 .61.8_-_...---

133.34.76

291 .5.17.18264

MAX 613MAX 134

2.23.53.6

306.1

5.05.04.84.22.9

2.52.01 .51.54.2

385.23.23.07.5

3.62.9

998.25.6

637.76.75.3

125.9

355.811 .5

991 .5.42.48706

KIN .22MIN .55

4.64.34.24.34.0

3.73.33.43.22.7

2.62.32.32.11 .9

2.12.01 .61 .91.9

1 .91.81 .61 .61 .6

1 .51 .51.41 .51 .5---

74.32.484.61 .4.09.10147

CFSK .14CFSM .22

1 .51 .92.32.21.2

1.72.02.53.03.3

833.82.53.18.4

4.74.0

105.7

122

134179.78.07.1

6.76.35.95.34.95.0

478.715.41341 .2.56.65950

IN 1IN 2

5.44.94.95.0

76

261 15.45.04.5

4.95.35.05.26.1

309.45.34.54.4

3.93.94.95.08.5

9.25.24.ff4.54.3-» -

282.49.41

763.9.34.38560

.86 AC-FT

.93 AC-FT

4.02.83.33.23.5

2.72.72.42.52.5

2.72.83.3

198.6

133.92.12.12.2

2.22.52.32.11 .9

2.12.22.52.72.52.4

114.73.70

191 .9.13.15228

27304310

2.42.61 .62.02.4

2.92.7

75186.3

4.03.63.12.93.0

2.72.53.46.92.9

2.42.12.12.12.4

2.82.82.92.92.92.8

179. 15.78

751 .6.21.24355

2.72.82.93.03.1

2.73.33.23.23.4

3.43.23.23.33.3

3.13.0

598212

9.43.83.02.82.6

2.42.62.62.62.5---

240.18.00

822.4.29.32476

-118-


08158970 WILLIAMSON CREEK AT JIMMY CLAY ROAD, AUSTIN, XX Continued


PERIOD OF RECORD. Chenical, biochemical, and pesticide analyses: January 1975 to current year. Radiochemical analy ses: October 1979 to September 1980.


DATE

FEB09...

MAR02...

MAY11...

STREAM- FLOW, INSTAN-

TIME TANEOUS (CFS)

1255

0815

1205

82

2.4

17



347

658

302


(UMHOS) UNITS) (DEC C)

7.1

7.6

7.7

12.0

17.0

21.5


25

5

10

TUR BID ITY

(NTU)

90

1.4

250

OXYGEN,DIS

SOLVED (MG/L)

9.5

5.1

7.6

DIS- DEMAND, SOLVED BIO- (PER- CHEM

ICAL, 5 DAY

CENT SATUR ATION)

91

54

88

3.6

3.6

4.8

FORM, FECAL. 0.7 UM-MF

(COLS./

STREP TOCOCCIFECAL,

KF AGAR (COLS. PER

(MG/L) 100 ML) 100 ML)

12000 86000

K42000 3500

37000 210000

DATE

FEB09...

MAR02...

MAY11...

HARD NESS (MG/L AS CAC03)

160

270

140

HARD NESS,


27

41

29

CALCIUM DIS- SOLVED (MG/L AS CA)

55

90

49

MAGNE SIUM, SODIUM, DIS- DIS SOLVED SOLVED (MG/L (MG/L AS MG) AS NA)

4.6

11

4.0

9.3

33

10

SODIUMAD

SORP TION

RATIO

POTAS- ALKA- SIUM. LINITY

FIELD (MG/L

DIS SOLVED (MG/L AS K)

.3 1.9

.9 3.0

.4 4.0

AS

130

230

110


CAC03) AS S04)

30

51

28


15

44

16

FLUO- RIDE, DIS

SOLVED (MG/L AS F)

.20

.40

.30


4.9

5.3

7.6

DATE

FEB09...

MAR02...

MAY

SOLIDS, SOLIDS,SUM OF RESIDUECONSTI- AT 105TUENTS, DEC. C,

DIS- SUS-SOLVED PENDED(MG/L) (MG/L)

199

376

185

124

1

236

SOLIDS, VOLA TILE, SUS

PENDED (MG/L)

44

78

NITRO GEN,

NITRATE TOTAL (MG/L AS N)

NITRO GEN,

NITRITE TOTAL (MG/L AS N)

NITRO GEN,


.27 .030 .30

.50 .200 .70

.43 .170 .60

NITRO GEN,


NITRO GEN,


.070 1.2

.660 1.1

1.10 1.0

NITRO GEN, AM MONIA + PHOS- CARBON, ORGANIC PHORUS, ORGANIC TOTAL TOTAL TOTAL (MG/L (MG/L (MG/L AS N) AS P) AS C)

1.30 .280 6.3

1.80 .240 3.5

2.10 .590 13

DATE

FEB09...

MAR02...

MAY

TIME

1255

0815

ARSENIC BARIUM,DIS- DIS

SOLVED SOLVED (UG/L AS BA)

(UG/L AS AS)

48

100

CADMIUMDIS

SOLVED (UG/L AS CD)


10


IRON, DIS

SOLVED (UG/L AS FE)

18

<3

-119-


08158970 WILLIAMSON CREEK AT JIMMY CLAY ROAD, AUSTIN, TX Continued


DATE

FEB09...

MAR02...

MAY11...


MANGANESE,DIS

SOLVED(UG/L AS MN)

MERCURYDISSOLVED(UG/L AS HG)

SELENIUM,DISSOLVED(UG/L AS SE)

SILVER,DISSOLVED(UG/L AS AG)

ZINC,DIS

SOLVED(UG/L AS ZN)

<3

27

100

50

<3

<3

8

DATE

FEB 09...

TIME

1255

AME-TRYNETOTAL






<2.0 .2



FEB 09... <.1 <.10 <2.0 <2.0



-120-

STA. NJ.Cil 5* 97u

STDSM RAlNrALL

A.\J

Sj'-iOF- RECORD

1935

*IAT

5=>

YEAR

« I LL I

A '

! S C

J C

-x z c N

AT

J I M M

1C CLAY

K 0 A 3 /

A J 5 T

I fj

, TEXAS

S T Q A M

0 =

M A

f 2 0

/ 1 9 o

5

' OATc

_ TIME

|--- ------ --- ----------

a G

| 1*"!5

| 2WMS

| 5WMS

HAY 23

|

|G u 0 u

| u

. 3

| 0

. J

3 J

1 3

| 0

. C 3

0030

| 0.10

0115

|

J . 1

1C

1 3 u

| G

. 1

13240

i U.11

j^5:

i

0.11

0533

i c.

iiC 5

1 u

i 0.11

0550

i ;.

111133

| 0.12

1523

| 0.27

153^

I 0

. 5

v.U 3 5

| 0.75

13*0

| C.

3v*

1400

i 1.05

1-1_

1 1.15

1 *1

5 I

1 .29

1 <» 2 0

| 1

. 5 c

1-ou

| 1.61

1 i i 5

| 1

. 6

<«1 5 G L

| 1

. 6 4

1315

| 1.65

152.

, j

1.65

1525

| 1 .0

51530

i 1.65

1535

| 1.65

1 j4

u |

1 . o5

15*5

| 1

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51c 30

| 1.65

1o1

5 |

1 .t

t1 6

5 C

| 1

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1 3=0

| 1.67

1 73u

| 1 ,c

71713

j 1

. o 7

1 7

3 C

| 1

. t 7

17*0

I 1..-7

r*

~\

J

J t

i

0.2C

0.20

0 . 20

0 . 2 Q

u . 2 3

0.20

3.23

3.20

:.,?5

:.3t

>3

. H'3

3.55

0. i

2 3.39

1 .10

1.13

1 .13

1 .1C

1 .1d

1 .14

1 .1e

1.16

1.16

1 .1 c

1 ,1o

1 .1

71 .1 7

1.17

1 .2

01.21

i . 2

i1.25

1 .31

1 .31

G . 0

0.05

0.3d

0.09

C. J*

0.09

0.0?

C . G

)0.09

C.Oy

C.1 5

0.27

0.44

0.35

1 .10

1.15

1 .2*

1 .VJ

1 .51

1 .5

a1 .63

1 .50

1.0 0

1 .6

31 .6

01

. o3

1 .0

31 .0

31 .60

1 .oO

1 . 03

1 .60

1 .6j

E N

J M

3

1.0J

|

1 .6 j

|

1 . fc

U |

1 .32

' 1.63

|"i7^-j

i 1

. 6 7

1

. 3 o

j 1

. o

j |

1 75

u |

1 .c

7

| 1.55

I 1

. i>j

|

c 3 - --- - _____ ___ -

I I

I I

I I

1 1

1 1

1 1

1 1

1 1

1 1

1 1

1 i

1 1

1 1

i 1

1 1

1 1

1 1

1 1

1 1

1 1

1 1

1 1

1 1

i 1

1 1

J 1

1 1

1 1

1 I

i 1

i 1

i 1

1 1

i i

1 1

1 1

1 1

i 1

1 1

1 1

1 1

ACCOM.

| DISCHARGE

XEIJHTrC

I IN

PRcCI

3.

| IN.

| C p S

10

. C

| 4.7

0.35

| 4.7

3.1-1

6.0

0.15)

5.5

.j .

1 5

| 11.3

0.15

| 23.0

0.15J

_ ». 3

3.15

| ^3.3

0.151

24.0

G .

1 5

| 25.0

0.21

| ?.

50.51

| 3.1

0.44

| d.2

0.67

| 3.

70.95

| 9.

1D

. "

9 |

1 C

. 0

1 .1 3

| 11.3

1 .24

I 11.0

1.31

| 1 7

. C

1.35

| L3.0

1 .3o

| 95

. C

1.39

| 2u5.0

1.40

| 2 a 5

. 0

1.40

| 339.0

1 .4j

j 393.0

1 .O

j 44o.O

1.40

| 437.3

1.40

| 5 2 9

. C

1.4J

| 570.3

1 .43

| 593.0

1 .

«. 2

| o

1 2

. 0

1.43

| 617. C

1 .44

J 637.3

1.45|

61 3.0

1.4.

| 593.0

1.43

| 593.0

1.45

| 550.0

1.50

| 574.0

1.51

| 516.0

A C C U M

. R U N 0 F r

IN.

O.o 030

0.0001

0.0003

0.0004

O.OC09

0.0030

0 . 004 6

0 . 0 0 4

S0.0051

3.0096

0.0115

0.0119

0.0120

0 . G

1 2 0

J . Q

1 2

10.0123

0.0123

0.0124

0.0125

0 . u

1 2 b

0.0142

0.0170

0.0197

0.0213

0.0231

0.0252

0 . G 2 7

50.0300

0.0353

0.0437

0.0523

0.3610

0.0695

0.0750

0 . j 3 o

+0.0953

0.0974

0.1001

0.1023

-221-

< Cf Oc.j .r u.O wi C

CJ CJ O C i

O- vO -» Ifi I' O- -sj C-^ O OJ Ui O' * Ci C~l CO -»

O C) CO O O O O O CJ O O CJ O O O O O

O O O O O O O O O O O O

O o ui ui uiUI CcJ -si 4- C

TABLE 3 AUSTIN URBAN HYDROLOGY STUDY

DAILY & MONTHLY RAINFALL SUMMARY FOR GAGES NORTH OF THE COLORADO RIVER PERIOD: 1983 WATER YEAR

GAGE NUMBERDATE

1BUL : 2BUL : 1SHL : 2SHL : 1BOG : 1WLN : 2WLN : 3WLN : 4WLN : 5WLN

OCT4

267

9101112131422282930

MTOT

0.080.001.300.080.150.150.000.120.340.010.010.070.000.000.00

2.31

0.090.010.470.080.180.260.020.160.260.020.020.010.040.010.00

1.63

0.040.000.270.200.070.410.110.220.500.000.000.030.930.010.09

2.88

0.140.010.450.390.040.380.070.170.420.000.000.050.720.010.09

2.94

0.030.000.290.390.360.030.470.190.400.000.000.140.400.010.00

2.71

0.030.000.200.120.050.400.010.200.360.010.000.040.630.000.01

2.06

0.020.000.170.320.310.320.090.180.460.010.000.080.890.010.00

2.86

*0.030.00*0.20*0.48*0.34*0.05*0.26*0.13*0.200.000.000.020.490.010.00

2.21

0.040.000.130.130.380.170.190.160.390.000.000.021.020.010.01

2.65

0.040.000.250.580.420.060.310.160.250.000.000.100.660.010.00

2.84

NOV12s\

491011121316181920212223242526272829

MTOT

0.001.770.070.000.010.050.010.000.000.010.000.070.010.000.000.060.260.071.990.110.010.00

4.50

0.011.900.080.000.000.030.020.000.000.010.000.22

*0.010.000.00*0.05*0.21*0.06*1.62*0.09*0.010.00

4.32

0.001.910.000.000.000.080.080.000.000.030.000.160.000.010.000.090.090.131.560.180.000.00

4.32

0.001.420.030.000.000.060.000.010.010.020.000.110.000.000.010.080.040.071.600.160.020.00

3.64

0.000.990.030.000.000.050.100.010.000.030.000.070.010.000.000.280.150.131.270.170.010.00

3.30

0.002.200.110.010.000.060.000.020.010.030.020.160.010.010.050.21

*0.12*0.17*1.30*0.170.000.00

4.66

0.001.680.050.000.000.020.030.000.000.030.010.130.000.000.000.060.140.191.490.190.000.00

4.02

0.000.770.040.010.000.010.030.030.000.020.000.060.010.000.000.220.070.211.440.180.010.00

3.11

0.001.020.050.000.000.050.040.010.000.040.000.100.000.010.000.370.070.181.480.180.010.00

3.61

0.000.870.030.000.000.050.060.070.000.030.000.080.000.020.000.170.120.191.260.180.010.01

3.15

MTOT = Monthly totals-123-



nflTF

DECoQ

Q

1011131620262731

MTOT

CTOT

JAN 135679171819202122233031

MTOT

GAGE NUMBER

1BUL

0.300.170.010.240.260.000.000.010.070.550.37

1.98

34.25========

0.580.000.010.000.000.000.000.640.160.100.260.010.000.000.13

1.89

2BUL : 1SHL : 2SHL : 1BOG : 1WLN : 2WLN : 3WLN : 4WLN : 5WLN

*0.25*0.140.000.250.230.020.000.000.000.520.21

1.62

28.38= = = = = = = = :

0.600.010.020.010.010.000.000.63*0.19*0.12*0.31*0.010.000.000.00

1.91

0.060.190.000.400.290.000.000.000.120.470.17

1.70

32.21:========

0.640.000.000.000.000.000.010.690.350.050.260.000.010.000.06

2.07

0.020.230.000.350.320.000.010.000.200.47

*0.17

1.77

31.15: = = = = = = = = :

*0.650.000.000.010.000.000.010.750.28

*0.03*0.210.00*0.020.00

*0.03

1.99

0.260.390.000.420.210.000.000.000.170.540.14

2.13

26.26

0.670.010.000.000.000.010.000.740.290.030.200.000.000.000.05

2.00

*0.25*0.370.000.390.270.010.000.000.300.560.21

2.36

32.40

0.710.010.010.020.000.000.000.770.270.070.310.010.010.000.07

2.26

0.290.430.000.280.240.000.000.00

*0.27*0.50*0.19

2.20

31.74;========:

0.710.010.010.010.000.000.020.820.200.07'0.270.020.000.000.02

2.16

0.240.110.000.400.340.010.000.000.170.620.15

2.04

28.78

0.790.000.010.020.000.000.000.720.200.030.220.000.000.00

, 0.00

1.99

0.130.440.000.430.370.000.000.00

*0.17*0.61*0.15

2.30

31.88; = = = = = ===:

*0.770.000.010.010.000.010.000.75

*0.23*0.04*0.250.000.000.000.00

2.07

0.300.330.000.360.320.000.000.00

*0.16*0.58*0.14

2.19

28.82:=========

*0.740.000.010.000.000.000.000.790.180.030.200.000.020.000.03

2.00

MTOT = Monthly totals CTOT = Calendar year totals

* «* Estimated

-124-


DAILY & MONTHLY RAINFALL SUMMARY FOR GAGES NORTH OF THE COLORADO RIVER PERIOD:1983 WATER YEAR

DATE

FEB45689141516171819202122

GAGE NUMBERtM»MWMM»MMMWMMM«

1BOG : 1WLN1BUL

0.310.960.000.010.790.010.740.000.000.000.010.290.010.01

2BUL

0.250.490.010.020.860.010.790.010.000.000.000.290.000.01

1SHL

0.26 0.29 0.00 0.01 0.88 0.13 0.70 0.00 0.00 0.00 0.00

*0.16 0.00 0.00

2SHL

0.220.330.010.000.870.000.800.010.000.000.000.130.020.00

0.230.900.000.000.810.000.820.010.000.000.000.060.010.01

*0.26*0.49 0.00

*0.01*1.00 0.00

*1.03 0.00

*0.01 0.00 0.00

*0.18 0.00

*0.02

2WLN

0.220.320.010.00

*0.92 0.00

*0.94 0.00

*0.01 0.00 0.00

*0.16 0.00

*0.03

3WLN

0.241.350.000.000.780.000.880.000.000.060.020.000.000.00

4WLN

0.210.390.000.010.800.000.820.000.010.000.000.140.000.02

5WLN

0.220.820.000.000.720.000.910.010.000.000.000.070.000.01

MTOT 3.14 2.74 2.43 2.39 2.85 3.00 2.61 3.33 2.40 2.76

MAR 1345891516181920212223252630

: = = = = :

MTOT

APR 4121320212229

0.000.011.330.000.090.350.710.390.000.600.060.000.010.640.000.680.24

5.11

0.010.010.000.020.040.010.04

0.010.000.720.010.050.330.570.480.000.200.050.010.000.890.010.740.24

4.31

0.010.010.060.000.040.040.01

0.000.000.00

*0.54 0.00

*0.36*0.69*0.58 0.00

*0.24*0.06*0.01 0.00

*1.08*0.01*0.90*0.29

4.76

0.000.010.010.020.040.010.03

0.000.000.560.00*0.03 0.40

*1.03*0.78 0.00

*0.36*0.10 0.00 0.00

*1.40*0.01*0.27 0.24

5.18

0.00*0.01 0.00 0.00

*0.06 0.00 0.01

0.000.000.850.000.060.351.190.680.000.210.160.000.001.170.010.840.23

5.75

0.000.010.010.030.090.000.01

0.000.000.730.000.000.36

*0.85*0.43 0.00

*0.65*0.06 0.00

*0.01*0.82*0.01*0.72*0.09

4.73

0.00 0.00 0.58 0.00 0.03 0.20 1.45 0.44 0.00 0.70 0.06 0.00 0.01 0.88 0.01 0:77 0.10

5.23

0.010.000.740.000.050.341.060.800.000.290.120.000.011.44

*0.01*0.87*0.27

6.01

0.00 0.00 0.63 0.00 0.05 0.35 1.08 0.63 0.01 0.29 0.08 0.00 0.00 1.41 0.01 0.55

*0.33

5.42

0.000.000.680.000.030.391.010.770.000.360.100.000.001.370.010.540.23

5.49

0.010.020.00

*0.01*0.06*0.01 0.02

0.00 0.02 0.02 0.00 0.08 0.01

*0.02

0.00*0.01*0.02 0.00

*0.05*0.01 0.00

0.000.020.000.040.080.000.01

0.020.010.000.070.080.000.00

~MTO? ^^^MTOT = Monthly totals -125-



: GAGE NUMBERDATE _ - _____ _

: 1BUL

MAYio91011141516171819202131

MTOT

0.000.010.000.760.200.010.290.000.010.100.491.601.270.22

4.96

2BUL : 1SHL : 2SHL : 1BOG : 1WLN : 2WLN : 3WLN : 4WLN : 5WLN

0.010.020.001.31

*0.17*0.01*0.240.00

*0.01*0.08*0.41*1.33*1.060.18

4.83

0.000.030.001.780.130.000.340.000.050.340.101.500.890.11

5.27

0.000.040.001.950.390.030.260.00

*0.04*0.30*0.09*1.33*0.790.11

5.33

0.000.06

*0.02*1.75*0.660.00

*0.470.00

*0.09*0.19*0.01*1.48*0.700.12

5.55

0.000.040.001.860.160.000.320.000.050.580.401.991.060.41

6.87

0.00*0.040.00

*1.86*0.160.00

*0.320.00

*0.05*0.58*0.40*1.99*1.060.21

6.67

0.000.080.012.240.790.00

*0.610.00

*0.12*0.26*0.01*1.950.920.13

7.12

0.000.040.001.980.770.000.370.020.040.730.041.200.900.13

6.22

0.000.080.022.060.780.000.550.000.110.230.011.740.820.12

6.52

JUNE145671415161718192324252628

MTOT

0.011.120.521.410.000.290.011.250.000.000.000.000.000.180.000.07

4.86

0.00*1.12*0.52*1.410.00

*0.29*0.01*1.250.000.000.000.000.000.460.010.13

5.20

0.00*1.07*0.48*0.73*0.01*1.11*0.02*0.440.000.000.000.000.001.010.000.09

4.96

0.001.070.480.730.011.110.020.440.000.000.000.120.011.650.010.01

5.66

0.001.500.430.590.010.250.000.400.000.010.000.040.020.770.000.00

4.02

0.011.330.561.740.020.530.030.340.040.000.000.000.000.240.010.12

4.97

0.000.970.581.500.021.590.010.710.020.000.000.000.000.220.000.10

5.72

0.001.050.550.770.020.630.010.390.010.000.000.320.320.300.000.11

4.48

0.002.250.480.780.000.780.010.370.000.000.010.150.211.470.010.01

6.53

0.001.310.550.730.010.500.010.370.010.000.000.100.460.360.000.06

4.47

MTOT = Monthly totals

-126-

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DAILY AND MONTHLY RAINFALL SUMMARY FOR GAGES SOUTH OF THE COLORADO

DATE

======APR4121320212229

======MTOT======MAY123891011121415161718192021272831

======:

MTOT========

RIVER PERIOD: 1983

':

WATER YEAR :

GAGE NUMBER :

1BAR :=======

0.00 :0.01 :0.00 :0.00 :0.02 :0.00 :0.00 :

2BAR=====

0.000.010.010.000.040.000.03

: 3BAR : 1BOL : 1-ON : 2-ON : 1BER : 2BER : 1LBR : 1SLA : 2SLA : 1BGS : 1WMS : 2WMS : 3WMS :=============================================================================================

: 0.00 : 0.00 : 0.00 : 0.00 : 0.00 : 0.00 : 0.00 :: 0.00 : 0.00 : 0.05 : 0.00 : 0.02 : 0.02 : 0.02 :: 0.01 : 0.04 : 0.01 : 0.00 : 0.02 : 0.00 : 0.01 :: 0.00 : 0.02 : 0.00 : 0.01 : 0.01 : 0.03 : 0.02 :: 0.03 : 0.08 : 0.07 : 0.09 : 0.07 : 0.07 : 0.09 :: 0.02 : 0.02 : 0.00 : 0.00 : 0.00 : 0.01 : 0.00 :: 0.00 : 0.00 : 0.00 : 0.04 : 0.03 : 0.04 : 0.05 :

===============================================================0.03 :

=======

0.00 :0.00 :0.05 :0.00 :0.00 :0.73 :0.39 :0.00 :0.03 :0.21 :0.00 :0.00 :0.02 :0.34 :1.74 :0.84 :0.00 :0.00 :0.04 :

0.09=====

0.000.000.050.191.480.050.000.000.230.000.010.650.341.670.370.000.000.000.06

: 0.06 : 0.16 : 0.13 : 0.14 : 0.15 : 0.17 : 0.19 :===================================================

: 0.00 : 0.00 : 0.00 : 0.00 : 0.00 : 0.00 : 0.00 :: 0.00 : 0.00 : 0.00 : 0.01 : 0.00 : 0.01 : 0.00 :: 0.03 : 0.06 : 0.04 : 0.07 : 0.04 : 0.03 : 0.05 :: 0.00 : 0.00 : 0.00 : 0.00 : 0.00 : 0.00 : 0.00 ::*0.07 : 0.19 : 0.00 : 0.00 : 0.05 : 0.01 : 0.01 ::*0.50 : 2.34 : 0.76 : 3.06 : 0.90 : 1.63 : 2.81 :: 0.00 : 0.05 : 0.04 : 0.03 : 0.02 : 0.03 : 0.02 :: 0.00 : 0.00 : 0.00 : 0.00 : 0.00 : 0.02 : 0.00 ::*0.22 : 0.00 : 0.00 : 0.00 : 0.03 : 0.00 : 0.00 ::*0.05 : 0.44 : 0.41 : 0.72 : 0.45 : 0.38 : 0.57 :: 0.00 : 0.01 : 0.00 : 0.00 : 0.00 : 0.00 : 0.00 :: 0.00 : 0.00 : 0.00 : 0.00 : 0.02 : 0.01 : 0.02 :: 0.00 : 0.26 : 0.12 : 0.50 : 0.13 : 0.20 : 0.47 ::*0.41 : 0.20 : 0.11 : 0.01 : 0.26 : 0.34 : 0.46 ::*1.73 : 1.80 : 1.57 : 0.08 : 1.52 : 1.61 :*0.07 ::*0.96 : 1.21 : 1.09 : 2.41 : 0.92 : 0.84 :*2.34 :: 0.00 : 0.00 : 0.00 : 0.00 : 0.00 : 0.00 : 0.00 :: 0.00 : 0.00 : 0.00 : 0.00 : 0.00 : 0.00 : 0.01 :: 0.00 : 0.05 : 0.10 : 0.05 : 0.07 : 0.10 : 0.07 :

0.010.020.010.010.080.010.04

=====0.18

=====

0.010.000.040.000.070.940.240.000.070.380.000.040.170.151.511.080.000.010.04

: 0.00: 0.02: 0.00: 0.01: 0.10: 0.01: 0.05

========: 0.19

========

: 0.00: 0.00: 0.05: 0.00: 0.00: 1.45: 0.06: 0.00: 0.00: 0.36: 0.00: 0.00: 0.18: 0.05: 1.96: 0.99: 0.02: 0.00: 0.07

: 0.02: 0.03: 0.08:*0.03:*0.11:*0.01: 0.01======: 0.29======

: 0.00: 0.00: 0.02: 0.00: 0.01: 2.55: 0.05: 0.00: 0.00: 0.46: 0.00: 0.01: 0.30: 0.06: 1.71: 1.22: 0.00: 0.00: 0.05

==================================================================================4.39 :

=======

5.10 : 3.97 : 6.61 : 4.24 : 6.94 : 4.41 : 5.21 : 6.90 : 4.75 : 5.19 : 6.44

: 0.00: 0.02: 0.00: 0.03: 0.08: 0.00: 0.04

::: ;

:

0.030.040.060.030.110.010.03

: 0.01: 0.02: 0.02: 0.02: 0.08: 0.01: 0.04

:

:::j:

=======================: 0.17

========

: 0.00: 0.00: 0.02: 0.00: 0.15: 1.27: 0.56: 0.00: 0.01: 0.41: 0.00: 0.01: 0.63: 0.06: 1.67: 1.00: 0.03: 0.00: 0.04

t=

::;:

::* ::::;

;:;:

0.31=====

0.000.000.040.000.252.780.090.000.000.490.000.020.250.041.901.410.000.240.05

: 0.20========

: 0.00: 0.00:*0.01: 0.00:*0.10:*0.83:*0.36: 0.00: 0.00: 0.29: 0.00: 0.02: 0.67: 0.30: 1.60: 0.82: 0.00: 0.00: 0.07

:= : ::::;::;^;::

j;::

=======================: 5.86 : 7.56

=====: 5.07

========;

MTOT - Monthly totals

-132-

TABLE 4

DAILY AND

DATE

JUNE1234567121415161718232425272830

=======MTOT

======= JULY156711121314151617181920212628

MTOT

MONTHLY RAINFALL SUMMARY FOR

1BAR : 2BAR : 3BARSSSSSS =========^=^=

0.010.000.000.740.771.140.000.011.010.000.250.000.000.000.000.310.000.000.00

: 0.01: 0.00: 0.00: 0.82: 0.62: 0.60: 0.01: 0.00: 0.78: 0.02: 0.39: 0.01: 0.00: 0.00: 0.00: 0.46: 0.23: 0.17: 0.00

: 0.00: 0.00: 0.00:*0.08:*1.20:*0.90: 0.00: 0.00:*3.68:*0.23: 0.00: 0.00: 0.00: 0.00: 0.00: 0.29: 0.00: 0.00: 0.00

: 1BOL

AUSTIN

GAGES

: 1-ON : 2-ON

: 0.00: 0.01: 0.00: 0.86: 0.64: 1.00: 0.02: 0.00: 0.48: 0.02: 0.77: 0.02: 0.00: 0.00: 0.00: 0.34: 0.00: 0.00: 0.00

: 0.02: 0.00: 0.01: 0.30: 0.35: 0.81: 0.00: 0.02: 2.27: 0.01: 0.52: 0.03: 0.00: 0.00: 0.00: 0.40: 0.00: 0.00: 0.00

: 0.01: 0.00: 0.00: 0.13: 0.72: 0.64: 0.03: 0.00: 0.86: 0.02: 1.30: 0.01: 0.01: 0.00: 0.00: 0.32: 0.00: 0.00: 0.00

URBAN HYDROLOGY STUDY i

SOUTH OF

GAGE

THE COLORADO RIVER PERIOD: 1983 WATER YEAR :

NUMBER :

: 1BER : 2BER : 1LBR : 1SLA : 2SLA : 1BGS : 1WMS : 2WMS : 3WMS :

: 0.01 :: 0.00 :: 0.00 :: 0.86 :: 0.22 :: 0.69 :: 0.01 :: 0.00 :: 1.59 :: 0.00 :: 0.25 :: 0.01 :: 0.00 :: 0.00 :: 0.00 :: 0.21 :: 0.00 :: 0.00 :: 0.02 :

0.01 :0.00 :0.00 :1.04 :0.39 :0.75 :0.03 :0.00 :0.55 :0.01 :0.16 :0.00 :0.00 :0.00 :0.00 :0.00 :0.00 :0.00 :0.00 :

0.01 :0.00 :0.00 :1.08 :0.39 :0.66 :0.01 :0.00 :0.60 :0.06 :1.29 :0.01 :0.02 :0.00 :0.00 :0.35 :0.00 :0.00 :0.01 :

0.00 :0.01 :0.00 :0.51 :0.56 :0.77 :0.00 :0.00 :1.27 :0.01 :0.61 :0.00 :0.00 :0.00 :0.00 :0.21 :0.00 :0.00 :0.00 :

0.010.000.001.150.420.790.020.000.290.010.450.020.000.000.000.280.000.000.00

: 0.00: 0.00: 0.00: 1.45: 0.33: 0.86: 0.00: 0.00: 0.17: 0.02: 0.84: 0.00: 0.00: 0.08: 0.01: 0.78: 0.00: 0.00: 0.00

: 0.00: 0.00: 0.00: 1.13: 0.64: 0.67: 0.01: 0.00: 0.59: 0.01: 0.48: 0.02: 0.00: 0.00: 0.00: 0.20: 0.00: 0.00: 0.00

==========================================================================================

4.24 : 4.12 : 6.38~SSSSSS = = = = = = = = ==: = = = =

0.031.500.030.000.000.000.100.310.410.510.480.030.000.000.000.000.00

: 0.03: 1.30: 0.01: 0.00: 0.00: 0.00:*0.19:*0.63:*0.80:*0.97:*0.95:*0.06: 0.00: 0.00: 0.00: 0.00: 0.00

: 0.02: 1.36: 0.02: 0.00: 0.01: 0.00: 0.09: 0.29: 0.37: 0.45: 0.44: 0.03: 0.00: 0.00: 0.00: 0.00: 0.00

: 4.16=======

: 0.00: 0.11: 0.01: 0.00: 0.00: 0.04: 0.04: 1.06: 0.48: 0.67: 0.08: 0.17: 0.00: 0.00: 0.00: 0.00: 0.00

: 4.74

: 0.17: 1.35: 0.11: 0.00: 0.00: 0.19: 0.49: 0.66: 0.34: 1.17: 0.28: 0.00: 0.00: 0.00: 0.00: 0.00: 0.00

: 4.05

: 0.00: 0.14: 0.00: 0.00: 0.00: 0.39: 0.02: 0.27: 0.02: 0.02: 0.70: 0.14: 0.04: 0.03: 0.02: 0.00: 0.00

: 3.87 :

: 0.04 :: 0.05 :: 0.06 :: 0.00 :: 0.00 :: 0.26 :: 0.81 :: 0.53 :: 0.56 :: 0.87 :: 0.71 :: 0.07 :: 0.00 :: 0.00 :: 0.00 :: 0.01 :: 0.00 :

2.94 :======

0.06 :0.10 :0.05 :0.01 :0.00 :0.38 :0.98 :1.38 :0.26 :0.91 :0.10 :0.05 :0.00 :0.00 :0.00 :0.00 :0.00 :

4.49 :

0.01 :0.14 :0.00 :0.00 :0.00 :0.77 :0.30 :0.96 :0.46 :1.14 :0.49 :0.00 :0.00 :0.00 :0.00 :0.00 :0.01 :

3.95 :========

0.00 :0.65 :0.02 :0.00 :0.00 :0.25 :0.37 :0.59 :0.39 :0.86 :0.43 :0.02 :0.00 :0.00 :0.00 :0.00 :0.00 :

3.44

0.160.070.140.000.000.170.541.340.301.150.470.000.010.000.000.000.00

: 4.54

: 0.04: 0.00: 0.00: 0.00: 0.02: 0.22: 0.47: 1.06: 0.47: 0.35: 0.09: 0.00: 0.00: 0.00: 0.00: 0.00: 0.00

: 3.75

: 0.00: 0.46: 0.00: 0.00: 0.00: 0.47: 0.07: 1.03: 0.60: 0.69: 0.43: 0.01: 0.04: 0.01: 0.00: 0.00: 0.00

: 0.00: 0.00: 0.00: 0.70: 1.17: 0.96: 0.03: 0.00: 0.23: 0.01: 0.73: 0.03: 0.01:*0.12: 0.00:*1.03: 0.00: 0.00: 0.00=======: 5.02

: 0.00:*0.02: 0.00: 0.00: 0.00:*0.31:*0.15:*1.26:*0.51:*0.39:*0.12: 0.00: 0.00: 0.01: 0.00: 0.00: 0.00

: 0.00 :: 0.00 :: 0.00 :: 0.86 :: 0.70 :: 0.72 :: 0.02 :: 0.00 :: 1.24 :: 0.01 :: 0.40 :: 0.00 :: 0.00 :: 0.00 :: 0.00 :: 0.25 :: 0.00 :: 0.00 :: 0.00 :========: 4.20 :

: 0.20 :: 0.34 :: 0.02 :: 0.00 :: 0.00 :: 0.20 :: 0.14 :: 0.63 :: 0.52 :: 0.57 :: 0.19 :: 0.04 :: 0.01 :: 0.01 :: 0.00 :: 0.00 :: 0.00 :

=========================================================================================================3.40

1TOT = Monthly

: 4.94

totals

: 3.08 : 2.66 : 4.76 : 1.79 : 3.97 : 4.28 : 4.28 :=======

3.58 : 4.35=====

: 2.72 : 3.81 : 2.77 : 2.87 :

-133-

======================================================2========================================================

TABLE 4

DAILY AND

DATE

====== AUG456789101213192024252829

======MTOT

SEPTi5678910111415181920212225

======MTOT======WTOT

MONTHLY

AUSTIN URBAN HYDROLOGY STUDY :

RAINFALL SUMMARY FOR GAGES SOUTH OF THE COLORADO RIVER PERIOD : 1983 WATER YEAR :

GAGE NUMBER :

1BAR

0.020.000.040.000.190.000.000.240.000.690.000.550.010.510.00

=====2.25

0.000.000.001.270.370.710.330.000.000.001.711.920.860.000.000.00

: 2BAR :

: 0.37 :: 0.00 :: 0.10 :: 0.00 :: 3.25 :: 0.00 :: 0.00 :: 0.00 :: 0.00 :: 0.37 :: 0.00 :: 0.00 :: 0.23 :: 0.32 :: 0.00 :

: 4.64 :

: 0.00 :: 0.00 :: 0.00 :: 1.94 :: 0.04 :: 0.21 :: 0.00 :: 0.00 :: 0.00 :: 0.00 :: 2.85 :: 1.17 :: 0.46 :: 0.00 :: 0.00 :: 0.00 :

3BAR

0.090.000.580.021.180.040.000.00o.no0.340.010.000.040.220.02

2.54

0.000.000.000.400.420.230.010.000.000.001.981.200.420.010.000.00

: 1BOL :

: 0.84 :: 0.01 :: 0.00 :: 0.02 :: 1.91 :: 0.02 :: 0.00 :: 0.00 :: 0.00 :: 0.21 :: 0.01 :: 0.00 :: 0.00 :: 0.32 :: 0.01 :

: 3.35 :

: 0.00 :: 0.00 :: 0.00 :: 0.59 :: 0.11 :: 0.03 :: 0.97 :: 0.02 :: 0.07 :: 0.00 :: 1.58 :: 0.52 :: 0.27 :: 0.00 :: 0.01 :: 0.00 :

1-ON

0.060.000.150.140.110.560.010.400.010.410.010.750.010.03

: 2-ON

: 0.02: 0.00: 0.00: 0.00: 2.16: 0.01: 0.00: 0.12: 0.02: 0.31: 0.00: 0.00: 0.00: 0.02

: 1BER

: 0.03: 0.00: 0.04: 0.00: 2.27: 0.01: 0.00: 0.03: 0.00: 0.14: 0.01: 0.06: 0.00: 0.02

: 2BER

: 0.47: 0.00: 0.00: 0.22: 1.93: 0.02: 0.00: 0.12: 0.01: 0.19: 0.01: 0.63: 0.00: 0.00

0.01 : 0.01 : 0.00 : 0.00==========================8

2.66 : 2.67 : 2.61 : 3.60

0.120.000.000.031.370.130.480.000.000.001.312.140.060.000.000.00

: 0.00: 0.00: 0.00: 0.22: 0.25: 0.02: 0.12: 0.05: 0.00: 0.00: 2.79: 1.13: 0.06: 0.00: 0.00: 0.00

========================================7.17 : 6.67 :

==============41.27 :44.04 :

4.67 : 4.17 : 5.64 : 4.64==========================38.14 :40>.85 : 41.93 :41.14

: 0.00: 0.00: 0.00: 0.35: 0.51: 0.12: 0.02: 0.00: 0.00: 0.00: 3.16: 0.74: 0.03: 0.00: 0.00: 0.00

: 0.00: 0.00: 0.00: 0.02: 0.22: 1.59: 0.03: 0.00: 0.00: 0.00: 3.18:*0.89:*0.04: 0.00: 0.00: 0.00

: 1LBR

: 0.05: 0.00: 0.00: 0.00: 2.36: 0.03: 0.01: 0.16: 0.02: 0.33: 0.00: 0.00: 0.00: 0.00: 0.00

: 2.96

: 0.00: 0.00: 0.00: 0.08: 0.37: 0.22: 0.16: 0.01: 0.00: 0.00: 4.10: 1.65: 0.00: 0.00: 0.00: 0.00

: 1SLA

: 0.08: 0.00: 0.45: 0.02: 1.71: 0.01: 0.00: 0.08: 0.02: 0.28: 0.00: 0.07: 0.00: 0.44: 0.01

======== : 3.17

: 0.00: 0.00: 0.00: 1.15: 0.17: 0.52: 0.03: 0.00: 0.00: 0.01: 3.30: 1.11: 0.14: 0.00: 0.00: 0.01

=============================: 4.93

========:39.97

: 5.97======8

:41.89

: 6.59 : 6.44

: 2SLA

: 0.49: 0.00: 0.00: 0.03: 1.87: 0.02: 0.01: 0.20: 0.02: 0.21: 0.00:*0.03: 0.00:*0.16: 0.00

: 3.04

: 0.00: 0.00: 0.00:*0.40:*0.06:*0.18:*0.01: 0.00: 0.00: 0.00: 3.16: 1.11: 0.65: 0.00: 0.00: 0.00

: 1BGS :

: 0.79 :: 0.00 :: 0.00 :: 0.34 :: 3.35 :: 0.23 :: 0.01 :: 0.00 :: 0.00 :: 0.14 :: 0.00 :: 0.00 :: 0.27 :: 0.03 :: 0.00 : ========: 5.16 :

: 0.00 ::*0.37 ::*0.20 ::*0.39 ::*0.02 ::*0.41 ::*0.41 ::*0.01 :: 0.01 :: 0.00 :: 3.22 :: 0.77 :: 0.33 :: 0.00 :: 0.00 :: 0.00 :

1WMS

*0.300.000.00

*0.06*1.55*0.02*0.01*0.18*0.020.280.000.050.030.390.00

2.89

0.000.000.000.890.061.000.020.000.000.023.611.160.320.000.000.00

: 2WMS

: 0.75: 0.00: 0.00: 0.02: 2.93: 0.13: 0.01: 0.00: 0.00: 0.17: 0.00: 0.00: 0.00: 0.24

.: 3WMS :

.: 0.05 :: 0.00 :: 0.01 :: 0.41 :: 1.47 :: 0.05 :: 0.01 :: 0.13 :: 0.01 :: 0.45 :: 0.00 :: 0.05 :: 0.21 :: 0.76 :

: 0.00 : 0.02 : ===============: 4.25 : 3.63 :

: 0.00: 0.32: 0.17: 0.33: 0.02: 0.35: 0.35: 0.01: 0.00: 0.01: 2.85: 0.80: 0.34: 0.01: 0.00: 0.00

===========================: 5.57

=====================:47.12 :41.95 :41.30

: 6.14 :========:44.01 :

7.08 : 5.56============43.99 :46.81

:: 0.00 :: 0.00 :: 0.00 :: 0.95 :: 0.02 :: 1.17 :: 0.01 :: 0.02 :: 0.00 :: 0.02 :: 3.08 :: 0.96 :: 0.76 :: 0.01 :: 0.00 :: 0.00 :

=========: 7.00 :

=========:42.93 :

MTOT = Monthly totalsWTOT = Water year totals

* = Estimated

-134-

Table

5. Summary o

f st

orm

rainfall-runoff, 1983

tn

Date of

St

orm

May

19-20, 1983

May

10,

1983

Rainfall (inches)

Dura

tion

To

tal

Maxi

mum

increment

(hours)

15-m

inut

e 30-minute

60-minute

0815

4700

Bu

ll Cr

eek

at Lo

op 36

0, Au

stin

2 2.

11

0.49

0.72

1.18

0815

5550

West Bo

uldi

n Creek

at Riverside

Driv

e,

5 2.

34

1.02

1.18

1.99

Rati

o of

Runo

ff

runo

ff t

o (inches)

rainfall

, Te

x. 0.11

0.05

Aust

in,

Tex.

.19

.08

Maxi

mum

disc

harg

e (ft3

/s)

409 275

0815

6700

Shoal

Creek

at No

rthw

est

Park

, Au

stin

Te

x.

May

10-11, 1983

3 2.15

.77

1.04

1.71

.40

.19

1,07

0

08156800

Shoa

l Creek

at 12th Street,

Aust

in,

Tex.

May

10-1

1, 1983

3 2.

24

.77

1.04

1.71

.48

.21

1,63

0

08158050

Bogg

y Creek

at U.

S. Hw

y. 183, Au

stin

, Tx

June

4-5,

1983

4 1.94

1.09

1.38

1.52

.28

.14

1,13

0

0815

8600

Wa

lnut

Creek

at Webberville

Road,

Austin,

Tex.

Augu

st 8

, 1983

4 1.

84

.98

1.51

1.55

.28

.15

2,570

Tab

le 5

- S

um

ma

ry of

stor

m ra

infa

ll-r

unoff,

1983

Dat

e of

Sto

rmR

ain

fall

(inch

es)

Du

ratio

n

(hours

)T

ota

lM

axim

um

incr

emen

tRu

noff

Ratio

of

runo

ff t

o15

-min

ute

30-m

inute

6

0-m

inu

te

(in

che

s)

rain

fall

Max

imum

dis

charg

e(f

t3/s

)

May

19

-20,

19

83

0815

4700

B

ull

Cre

ek

at

Loop

36

0,

Austin,

Tex

.

2.11

0.

49

0.72

1.

18

0.11

0.05

409

May

10,

1983

08155550

West

Bouldin

Cree

k at Ri

vers

ide

Drive, Au

stin

, Te

x.

5 2.34

1.02

1.18

1.99

.19

.08

275

May

10-1

1, 1983

08156700

Shoal

Cree

k at

No

rthw

est

Park,

Austin T

ex,

2.15

.77

1.04

1.71

.40

191,

070

May

10-1

1, 1983

08156800

Shoa

l Cr

eek

at 12th St

reet

, Au

stin

, Te

x.

2.24

.77

1.04

1.71

.4

8,2

11,

630

June

4-5

, 1983

0815

8050

Bo

ggy

Cree

k at

U.S. Hw

y. 18

3, Au

stin

, Te

x.

1.94

1.09

1.38

1.52

.28

.14

1,13

0

Augu

st 8,

1983

08158600

Walnut C

reek

at

Webb

ervi

lle

Road,

Aust

in,

Tex,

4 1.84

.98

1.51

1.55

.28

.15

2,57

0

Tabl

e 5.

Sum

mary

of

storm

rainfall-runoff, 1983 Continued

Rainfall (incnes)

Rati

o ofMaximum

Date o

f St

orm

DurationTotalMaximum i

ncre

ment

Runoff

runo

ff t

o discharge

(hours)

lb-minute3U-minutebU-minute

(inc

hes)

rainfall

(ft^/s)

08158700

Onio

n Creek

near

Dri

ftwo

od,

Tex.

May

20-21, 19

83

20

2.66

0.43

0.79

1.13

0.

17

0.06

43

3

0815

8800

Onion

Creek

at B

uda.

Te

x.

May

20-2

1, 19

83

30

2.59

.60

1.13

1.78

.34

.13

1,65

1)

08158810

Bear C

reek be

low

farm R

oad

1826

near D

rift

wood

, Te

x

^

May

20-2

1, 19

83

20

2.44

.49

.71

1.12

.13

.05

125

to

________________________________________________

____ _________________________________________

08158820

Bear

Creek at

Farm

Road

16

26 n

ear

Manchaca

, Te

x.

May

20-21, 1983

19

2.44

.49

.71

1.12

.1

4 .0

6 39

7

08158825

Litt

le B

ear

Creek

at F

arm

Road 1

626

near M

anchaca, Te

x.

May

10,

1983

2

2.84

.8

6 1.71

2.55

.05

.02

749

08158840

Slau

ghte

r Creek

at F

arm

Road

18

26 near A

usti

n, Tex.

May

20,

1983

1

1.51

.77

.80

1.23

.07

.04

201

Table

5.--

Summ

ary

of s

torm r

ainf

all-

runo

ff,

1983 Continued

_________

Rainfa 11(inches)___________

Ratio

of

Maximum

Date o

f Storm

DurationTotalMaximum i

ncrement

Runoff

runoff t

o discharge

(hou

rs)

15-m

inut

e30-

minu

te60

-min

ute

(inches)

rainfall

(ft^

/s)

0815

8880

Bo

ggy

Creek

(South)

at C

ircl

e S

Road

, Au

stin

, Te

x.

May

10,

1983

1

2.61

1.

34

1.74

2.44

0.75

0.29

1,49

0

08158920

Will

iams

on C

reek a

t Oa

k Hi

ll,

Tex.

May

20,

1983

1

1.61

0.67

0.

71

1.41

.21

.13

456

08158930

Williamson C

reek a

t Manchaca R

oad,

Austin,

Tex.

May

20,

1983

1 1.

71

.83

.85

1.25

.21

.13

730

0815

8970

Wi

llia

mson

Creek a

t Jimmy

Clay R

oad,

Au

stin

, Te

x.

May

20,

1983

6

1.77

.8

3 .84

1.25

.1

7 .09

617

Table 6. Rainfall and runoff data for selected continuous-record gaging stations in the Austin urban study area, 1983 water year

Station

Bull Creek at Loop 360, near Austin, Tex. (08154700)

Weighted-mean ra i nf a 1 1 (inches)

39.16

Total runoff

(inches)

4.15

Ratio of runoff to rainfall

0.11

Barton Creek near Camp Craft Road 40.51 3.17 .08 near Austin, Tex. (08155260)

Barton Creek at Loop 360, 40.33 .83 .02 Austin, Tex. (08155300)

Shoal Creek at Northwest Park, 38.48 7.11 .18 Austin, TX (08156700)

Boggy Creek at U.S. Hwy. 183, 37.97 7.25 .19 Austin, TX (08158050)

Walnut Creek at Webberville 42.23 5.53 .13 Road, Austin, TX (08158600)

Onion Creek near Driftwood, 41.93 3.30 .08 TX (08158700

Onion Creek at Buda, TX 41.71 .70 .02 (08158800)

Bear Creek at Farm Road 1826 39.97 5.57 .14 near Driftwood, TX (08158810)

Slaughter Creek at Farm Road 42.01 3.86 .09 1826 near Austin, Tex. (08158840)

Williamson Creek at Oak Hill, 43.10 4.73 .11 Austin, Tex. (08158920)

Williamson Creek at Jimmy Clay 45.15 2.93 .06 Road, Austin, Tex. (08158970)

Note: See "Remarks" paragraph of station descriptions in the section "Compilation off Data" for information about regulation or diversion.

-139-

Table 7. Peak discharges associated with water-quality samplescollected during storms

Water-quality sample

Stationno.

08154700

08155260

08156800

08158050

08158200

08158600

08158700

Stationname

Bull Creek atLoop 360 nearAustin, Tex.

Barton Creeknear Camp CraftRoad nearAustin, Tex.

Shoal Creek at12th Street,Austin, Tex.

Boggy Creekat U.S. Hwy.183, Austin,Tex.

Walnut Creekat Dessau RoadAustin, Tex.

Walnut Creekat Webber-ville Road,Austin, Tex.

Onion CreeknearDriftwood,Tex.

Date

Feb. 9May 11Sept. 19

Feb. 9

Mar. 23May 20Aug. 8Sept. 7

Mar. 4May 20

Mar. 4

Mar. 4

Mar. 23

Time

1245(3 samples)(4 samples)

1340

1030(2 samples)13031640

1300(6 samples)

1415

1340

1200

Instantaneousflow

(ft3/s)

25

23

300

40316

106

27

87

126

Date

Feb.MaySept.

Feb.

Mar.MayAug.Sept.

Mar.May

Mar.

Mar.

Mar.

Peak flow

91119

9

232087

420

4

4

23

Time

103000301230

1130

1015153014301545

14001530

1445

1350

1300

(ft^/s)

55181350

27

3321,1201,980

40

2002,500

41

95

139

See footnotes at end of table.-140-

Table 7. Peak discharges associated with water-quality samples collected during storms continued

Water-quality sample Peak flow

Stationno.

08158800

08159000

08158810

08158825

08158840

08158920

Stationname

Onion Creekat Buda, Tex.

Onion Creek at U.S. Hwy. 183 near Austin, Tex.

Bear Creekbelow P.M.Road 1826 nearDriftwood, Tex.

Little BearCreek at P.M. Road 1626 nearManchaca, Tex.

Slaughter Creek at P.M.Road 1826 nearAustin, Tex.

Williamson Creek at Oak Hill, Tex.

Date

Mar. 23

Feb. 9

Feb. 9

Feb. 9Sept. 19

Sept. 19

Feb. 9 May 20 Aug. 8 Sept .7 Sept. 9

Time

1130

1435

1230

13551210

1300

1300 (6 samples) (6 samples) (3 samples) 1525

Instan- Date Timetaneousflow

(ft3/s)

3.4 Mar. 23 1100

757 Feb. 9 1530

14 Feb. 9 1200

.59 Feb. 9 1430381 Sept. 19 1210

40 Sept. 19 1530

14 Feb. 9 1015 May 20 1500 Aug. 8 1330 Sept. 7 1700

233 Sept. 9 1515

(ft3/s)

3.7

1,830

14

.66381

126

58 456 7b6 376 209

See footnotes at end of table.

-141-

Table 7 .--Peak discharges associated with water-quality samples collected during storms continued

Water-quality sample Peak flowStation

no.

08158970

Station Date Timename

Williamson Feb. 9 1255Creek at Jimmy May 11 1205Clay Road,Austin, Tex.

Instan- Date Timetaneousflow

(ft3/s)

82 Feb. 9 133017 May 11 0230

(fWs)

149472

a/ Unknown.

-142-

Table

8

. R

eco

rds

of

we

lls,

test

ho

les,

an

d sp

rin

gs

in

the

A

ust

in

urba

n st

udy

area

Wate

r-bearing u

nits:

Kea

, E

dwar

ds

and

ass

oci

ate

d

lime

sto

ne

s;

Kgru

, U

pper

G

len

Ros

e;

Kgrl,

Low

er

Gle

n R

ose;

K

ho,

Hoss

ton.

Met

hod

of lift

and

type of

pow

er:

C,

cylin

der;

cf,

centr

ifugal;

£,

ele

ctr

ic;

G,

na

tura

l ga

s,

buta

ne,

or

gasolin

e;

H,

hand

J,

Jet;

N,

none

; S

, su

bm

ers

ible

; T

, tu

rbin

e;

W,

win

dm

ill.

Use

of

wate

r:

D,

dom

est

ic;

Ind

, in

du

str

ial; Ir

r,

irrigation;

N,

none

; P

, public

su

pply

; S

, liv

esto

ck.

No.

Ow

ner

Drille

rD

ate

com

p

lete

d

Dep

th

of

well

(ft)

Ca

sin

gD

iam

ete

r

(in

)

Dep

th

(ft)

Wate

r

be

arin

g

un

it

Alti

tude

o

f la

nd

su

rfa

ce

(ft)

Wat

er

level

VB

elow

la

nd

Dat

e of

late

st

Met

hod

surf

ace

m

easu

rem

ent

for

of

datu

m

annu

al

wa

ter-

lift

level

surv

ey

(ft)

Use

o

f w

ate

rR

emar

ks

Tra

vis

Cou

nty

YD

-58-

36-8

05 809

810

813

814

903

, £ Y

D-5

8-42

-911 91

3

925

926

YD

-58-

49-6

D4

50-1

01 206

YD

-58-

50-2

11 213

215

Ean

es

Sch

ool

Ca

rlysle

S

chn

elle

Sw

enso

n

G &

J W

ater

C

o.

Della

no H

ills

City of

Aust

in

Bee

Cav

es

Pro

pe

rties

Par

k H

ills

Ba

ptist

Chu

rch

Jim

my

Shi

pwas

h

Eug

ene

Jaco

bs

0.

B.

McK

own,

Jr.

T.

A.

Be

cke

tt,

Jr.

Ken

neth

W

ing

fie

ld

Tra

vis

C

ount

ryE

state

s

Bill

Ash

baug

h

City of

Sun

set

Val

1 e

y

S.

W.

Gla

ss

Gla

ss

Bos

ton

Fu

rr

C.

T.

Ste

rzin

g

C.

T.

Ste

rzin

g

_ Ch

arle

s D

ell

ana

Ric

ha

rd B

ible

Ric

ha

rd B

ible

Hug

h G

lass

C.

T.

Ste

rzin

g

Will

B

eck

ett

W.

H.

Gla

ss

Ric

ha

rd B

ible

- Tom

A

rnold

1954

1949

1912

- - 1920

's

19

20

's

1969

1975

1963

1957

1921

1968

1973

- 1976

876

340

295

300

300 45 135

180

180

190

565

217

257

282

300

360

7 6 6 8 10 5 6 7 5 6 7 7 7 7 7 6-5

/8

705 98 80 - - 10 90 16

5

180

- 450 12 53

265 -

200

Kg

rl

Kea

Kea

Kea

Kea

Kea

Kea

Kea

Kea

Kea

Kg

rl

Kea

Kea

Kea

Kea

Kea

770

720

700

660

660

460

517

540

575

600

898

810

680

670

705

675

229.7

5

Aug

. 24

, 19

83

N S,

187.

9 A

ug.

24,

1983

N

211.

45

May

13

, 19

83

S, S,

27.0

6 A

ug.

24,

1983

S

,

77.1

5

May

13

19

83

S,

S,

139.

3 A

ug.

24,

1983

S

,

156.

7 Ju

ly

18,

1983

S

, S,

179.

55

Aug

. 24

, 19

83

S, S,

210.

35

Aug

. 24

, 19

83

S,

217.

15

Aug

. 24

, 19

83

S,

_

E L E E E E E E E E E E E

N D N P P N D,

Irr

D Irr

Irr

Irr

D D Irr

0 P

Rep

orte

d dr

awdo

wn,

19

0 fe

et

at

22

gal /

mi n

in

M

ov.

1954

. 3

/ 5

/

i/ 1'

Th

is

we

ll su

pplie

s 15

fa

milie

s.

This

w

ell

supplie

s 24

fa

milie

s.

Ope

n hole

be

low

ca

sing.

Wa

ter-

leve

l re

cord

er

on th

is w

ell.

3

/

Origin

ally

du

g to

90

fe

et

the

ndrilled to

13

5 fe

et.

4/

i/ 1/3

/

6/

Report

ed y

ield

28

ga

l /m

i n.

2/

6_/

7, 1

6/

Rep

orte

d yie

ld,

10

gal /

mi n

.C

emen

ted

fro

m 0

-53 fe

et.

6/_

7/

3/

6/

- i/

7/ i/ I/

See

foo

tno

tes

at

end

of

table

.

Table 8. Recor

ds of w

ells,

test h

oles,

and

spri

ngs

in the

Aust

in ur

ban

stud

y ar

ea C

onti

nued

No

.

216

217

220

301

401

406

408

i £ Y

D-5

8-50

-412 50

2

517

704

705

721

801

Ow

ner

U.S

. G

eolo

gic

al

Sur

vey

U.S

. G

eolo

gic

al

Sur

vey

Bud

dy

Fo

wle

r

John

Lo

vela

dy

A.I.S

.D.

Geo

rge

Sla

ug

hte

r

Ric

hard

A

ust

in

Circle

C

Ran

ch

Mrs

. R

. W

. H

ernd

on

Ted

Sw

anso

n, Jr.

Marb

ridge

Fo

un

da

tion

Ric

ha

rd M

cKea

n

La

rry

Jack

son

C.

H.

Bird

Drille

r

Tex

as

De

pt.

o

fW

ater

R

esou

rces

Tex

as

Dept.

of

Wat

er

Res

ourc

es

Ric

ha

rd B

ible

Gus

S

ande

rs

Gla

ss

John

G

lass

E.

W.

Gla

ss

Gla

ss

Gla

ss

Centr

al

Tex

-O

rillin

g

Ce

ntr

al

Tex

.D

rillin

g

C.

T.

Ste

rzin

g

Hug

h G

lass

Will

iam

son

&A

dair

Dat

e co

m

ple

ted

1978

1978

1974

1949

1967

1946

1971

1972

1937

1973

1968

1965

1979

1939

Dep

th

of

well

(ft)

582

129

310

388

404

360

439 295

300

430

345

200

400

277

Casi

ng

Di a

m-

Dep

th

ete

r

(in)

(ft)

Tra

vis

4 58

0

4 14

4

6 31

0

5 29

6

7 25

2

5 10

0

7 12

5

7 19

4

5-5

/16

16

8

6-3

/8

290

16

6814

40

7 16

45-1

/2

200

4 40

0

5-1

/4

200

Wa

ter

b

ea

rin

g

unit

Alti

tude

of

land

surf

ace

(f

t)

Wat

erB

elow

la

nd

surf

ace

da

tum

(ft)

level

I/D

ate

of

late

st

mea

sure

men

t fo

r an

nual

w

ate

r-

leve

l su

rve

y

Het

nod

of

lift

Use

o

f w

ate

rR

emar

ks

Cou

nty C

ontin

ued

Kea

Kea

Kea

Kea

Kea

Kea

Kea

Kea

Kea

Kea

Kea

Kea

Kea

Kea

692

567

675

640

750

820

772

809

740

695

727

660

680

662

233.5

116.

0

-

156.

30

- -

178.

2

158.

75

220.

4

155.

15

158.

6 -

92

.85

Aug

. 24

, 19

83

Aug

. 24

, 19

83

--

Aug

. 24

, 19

83

- -

July

19

, 19

83

Ju

ly

26,

1983

Ju

ly

20,

1983

Aug

. 24

, 19

83

Aug

. 25

, 19

83

-

Aug

. 26

, 19

83

N N S,

E

N S,

E

S,

E

S,

E

N S,

E

S,

E

S,

E

S,

E

S,

E,

S,

E

N N D N D,

S

D D N Irr,

S

Irr

Irr

D D N

U.S

. G

eo

l. S

urve

y te

st

well

#3.

_3 / 5

/ y

U.S

. G

eo

l. S

urve

y te

st

we

ll #2

A3/

_5/

1J

I/ y i/

1/i/ U

I/ Rep

orte

d dr

awdo

wn

0 fo

ot

whe

n pu

mpe

d at

25 gal/m

info

r on

e hour

on

Mar

. 18

,19

71.

6/

3/

5/

6_/

_4/ y

Rep

orte

d yie

ld,

300

gal/m

in.

Mea

sure

d dr

awdo

wn,

12

fe

et

after

pum

ping

72

hours

at

942

ga

l/m

in,

2 fe

et

at

578

gal/m

in,

and

1 fo

ot

at

473

gal/m

in.

_3/ £/ U

i/ I/ Re

po

rte

d y

ield

, 10

gal/m

in.

2/

3/

810

A. L.

Wunneburger

Emmett G

lass

1969

359

YO-58-58-301

Unit

ed G

as

Pipeline

1943

703

205 639

Kea

Kea

625

734

S, £

143.20

Dec.

28,

1983

N

Repo

rted

drawdown, 20 f

eet

after

bailing

1 hour at

40 g

al/m

in.

2J 6

/ 7/

U.S. Geol.

Survey ob

serv

atio

n well.

2/ 3/

See

foot

note

s at e

nd o

f ta

ble.

Ta

ble

8

. R

eco

rds

of

wells

, te

st

ho

les,

an

d sp

rin

gs

in

the A

ust

in

urba

n st

udy

are

a C

on

tin

ue

d

Ca

sin

g

No.

Ow

ner

Drille

rD

ate

com

- pl

ete

d

Dep

th

of

we

ll (f

t)

Dia

m

ete

r

(in

)

Dep

th

(ft)

Wa

ter

b

ea

rin

g

un

it

Alti

tude

o

f la

nd

surf

ace

(f

t)

Wat

er

level

Bel

ow

land

surf

ace

da

tum

(ft)

I/D

ate

of

late

st

mea

sure

men

t fo

r an

nual

w

ate

r-

leve

l su

rve

y

Met

hod

of

lift

Use

of

Rem

arks

w

ate

r

Hay

s C

ount

y

LR-5

8-49

-801 90

3

57-1

01 201

202

LR-5

8-57

-302 30

3

402

503

( £

901

i

903

58-1

01 105

LR

-58

-58

-11

1

403

406

504

704

Cla

ra

Cal

houn

Mrs

. B

liss S

pill

ar

M.

0.

Rog

ers

Mik

e R

uth

erf

ord

Fa

rris

Jack

D

ahls

trom

W.

D.

Turn

er

Tom

Fa

ire

y

Mic

hael

is

Ran

ch

Hay

s C

on

solid

ate

dS

choo

l D

istr

ict

Mou

ntai

n C

ity

Ran

ch

Fra

nklin

Joe

Low

ke

Hay

s C

ity

City of

Bud

a

Tex

as

Cem

ent

Rog

er

Bro

wn

0.

H.

Culle

n

Tyle

r

-- Har

vey

Sca

rly

W.

H.

W.

H.

Jam

es

_ E.

A.

C.

L.

Har

mon

Gla

ss

Gla

ss

Gla

ss

B.

Tuck

er

Gla

ss

Tyle

r

Tom

Arn

old

- J.

B.

F.

S.

C.

T.

E.

R.

Vird

ell

Tat

um

Ste

rzin

g

Ow

nes

1942

~ 1930

' s

1945

-- 1973

1973

1976

Be

fore

1900

1968

1943

1907

1978

- 1954

1966

1962

1972

100

200

125

320

200

415

315

380

180

575

400

243

477 33

8

390

525

640

532

6 4 6 6 7

12

7 6 4 10 6 5 4 6 10 10 7 7

20 - 120 ~ 200

158

315 55 _ 235 230

480

150

222

310

514

368

Kea

Kea

Kgr

u

Kea

Kea

Kea

Kea

Kea

Kea

Kea Kea

Kea

Kea

Kea

Kea

Kea

Kea

Kea

856

830

992.

7

925

905

809

870

880

812

821

822

707

2

773

705

710

743

778

746

36.0

5

- 56

.06

5.6

16

2.0

24.0

187.

95

12

0.8

134.

6

_ 201.

15

105.

8

-

150.

75

106.5

139.

1

164.

9

154.

6

Aug

.

Ju

ly

Aug

.

Ju

ly

Aug

.

Aug

.

Aug

.

Aug

.

Aug

.

Aug

.

Ju

ly

Aug

.

Ju

ly

26,

~ 20,

26,

21,

25,

~ 26,

25,

_ 26,

26,

~ 25,

~ 25,

26,

21,

1983

1983

1983

1983

1983

1983

1983

1983

1983

1983

1983

1983

1983

S,

E

C,

E

S,

E

C,

W

S,

E

S,

E

S,

E

S,

E.

C,

W

S,

E

C,

W

N S,

E

S,

E

T,

E

S,

E

S,

E

S,

E

S S D S S S D U S S N 0 P P P N D

I/ i/

I/ 6/ 2!/

3/

i/ _5/7

/

6/

7/

_3/£

/

6/

7/

2 /

3/

y y

i/5_

/ 6_

/

i/ 6/

Cem

ente

d 0

-31

0 f

eet.

2/

]_/

I' U*n

j

M

Sele

cted w

ells

a

re

incl

uded

in

mo

nth

ly w

ate

r-le

vel

surv

eys

(s

ee

tab

le 9).

27

Tex

as

Dep

artm

ent

of

Wat

er

Res

ourc

es

obse

rvatio

n w

ell.

7/

Month

ly w

ate

r-le

vel

mea

sure

men

ts a

va

ilab

le

in

tab

le 9.

T/

Dis

contin

ued obse

rvatio

n w

ell.

T/

Geo

phys

ical

lo

g

(ra

dio

activity

or

ele

ctr

ic lo

g).

F/

Wel

l or

sprin

g

sam

pled

fo

r qualit

y

of

wa

ter.

T/

Driller's

log,

sam

ple

log

, or

core

data

.

Tab

le 9

. W

ate

r-qualit

y

data

fr

om w

ells

an

d sp

rings

in

the

A

ust

in

urba

n st

udy

area

LOCAL

IDENT

I

FIER

YD 58-42-309

YD 58-42-814

YD 58-42-913

YD 58-42-926

YD 58-49-604

YD 58-50-101

YD 58-50-206

YD 53-50-211

YD 58-5C-215

YD-58-50-220

YD 58-50-401

YD 58-50-406

YD 58-50-408

YD-58-50-412

YD 58-50-502

YD 58-50-704

YD-58-50-705

YO-58-50-721

YD 53-50-810

DATE

OF

SAMPLE

83-07-18

83-07-18

83-07-13

83-05-21

83-05-22

83-05-23

83-05-25

83-07-18

33-07-22

83-07-19

83-07-19

83-07-19

83-07-19

83-05-21

83-05-23

83-07-22

83-07-19

83-07-19

83-07-19

83-07-20

83-07-20

83-05-21

83-05-22

83-05-23

83-05-25

33-05-21

83-05-23

83-07-20

PJMP

OR FLOW

PERIOD

PRIOR

TO SAM-

TIME

PLING

(MIN)

(72004)

1045

0845

1300

1050

0940

0830

1115

1205

1400

0835

0918

0805

1000

1130

0915

0950

1210

1330

1245

1330

0930

1135

1010

1030

1345

1105

0955

1415

60 60 60 20

35

20

20

30 60 60 20 60 60 20

20 30 20 20 15 25 20 20

20 20

20 20 20 25

DEPT

H CO

LI-

BELO

W SPE-

FORM

/ DE

PTH

LAND

CI

FIC

FECAL/

Oc

SURFACE

CON-

PH

0.7

WELL

/ (WATER

DUCT

- (STAND-

TEMPER-

UM-M

F TO

TAL

LEVEL)

ANCE

ARD

ATUR

E (COLS./

(FEET)

(FEE

T)

(UMH

OS)

UNIT

S)

(DEG

C)

100

ML)

(720C8)

(72019)

(00095)

(00400)

(00010)

(31625)

TRAVIS

340

300

180

190

190

190

190

190

565

217

257

282

360

310

310

404

360

439

295

300

220.00

345

--

154.00

200

--

200

200

200

--

4CO

~-

400

359

494

54o

01 0

589

583

586

590

58o

632

649

514

601

582

587

586

553

070

597

568

475

476

523

523

531

524

55o

563

767

7.8

7.1

7.4

7.2

7.4

7.4

7.3

7.4

7.6

7.1

7.1

6.9

6.9

7.4

7.3

7.5

7.0

7.1

7.0

7.4

7.5

7.3

7.4

7.3

7.2

7.3

7.3

7.5

23.0

<1

22.5

<1

23.0

K1

21.0

K3300

21 .5

110

22.0

63

21.5

K3

22.0

43

24.0

<1

26.5

<1

22.0

K1

22.0

K16

24.0

<1

22.0

<1

22.5

<1

23.0

<1

24.0

<1

24.5

K1

23.5

K2

K13

K14

21.0

K1

21.0

K8

21.0

26

22.0

30

22.0

<1

22.5

<1 K1

STREP

TOCOCCI

FECAL/

KF AGAR

(COL

S.

PER

100

ML)

(31673)

K18 <1 30

5200

14000

7000

380

1300 66 22 33

160

270 ^ <1

120

K113

140

220 33

K10

600

360

220 K2

220

Tabl

e 9.

--Wa

ter-

qual

ity

data fr

om w

ells

an

d sp

ring

s in

the

Austin urban

stud

y area Continued

LOCAL

IDENT

I

FIER

YO 5S-42-809

YO 58-42-814

YO 58-42-913

YO 58-42-926

YO 58-49-604

YD 58-50-101

YD 58-50-206

YD 58-50-211

YO 58-50-215

YD-58-50-220

YO 58-50-401

YD 58-50-406

YD 58-50-408

YD-58-50-412

YD 58-50-502

YD 5S-50-704

YD-5S-50-705

YO-58-50-721

YD 58-50-310

SOLIDS,

CHLO-

FLUO

- SI

LICA

, SUM

OF

RIDE

, RIOEx

DIS-

CO

NSTI

- DA

TE

DIS-

DI

S-

SOLVED

TUENTS,

OF

SOLVED

SOLVED

(MG/

L -D

IS-

SAMPLE

(MG/

L (M

G/L

AS

SOLVED

AS CD

AS F)

SI02)

(MG/L)

(00940)

(00950)

(00955)

(70301)

83-07-18

14

83-07-18

15

83-07-18

14

83-05-21

83-05-22

83-05-23

83-05-25

83-07-18

16

83-07-22

13

83-07-19

9.0

83-07-19

16

83-07-19

22

83-07-19

13

83-05-21

14

83-05-23

83-07-22

13

83-07-19

23

83-07-19

16

83-07-19

10

83-07-20

10

83-07-20

11

83-05-21

83-05-22

83-05-23

83-05-25

83-05-21

33-05-23

83-07-20

29

TRAVIS

.20

9.0

.20

10

.20

10

.20

11

.70

10

.70

13

.20

11

.20

10

.20

15

.20

12

.20

11

.30

13

.20

U

.10

13

.20

11

.20

11

2.1

11

270

300

350

330

360

360

280

350

320

330

320

370

330

310

270

270

440

NITRO

GEN,

N02+N03

TOTAL

(MG/L

AS N)

(00630)

<.100

1.10

1 .60

1 .60

1.60

1.70

1 .60

1 .70

.300

.300

1 .70

1 .20

2.60

2.40

2.40

1 .60

4.70

1 .1

0

1.50

.600

.500

1 .3

0 1.30

1.30

1 .10

1 .20

1 .20

<.100

NITRO

GEN/

NITRITE

TOTAL

(MG/L

AS N)

(00615)

<.020

<.020

<.020

<.050

<.020

<.020

<.020

<.020

<.020

<.020

<.C20

<.020

<.020

<.020

<.C20

<.020

<.020

<.020

<.020

<.020

<.020

<.C20

<.020

<.020

<.020

<.020

<.020

<.020

NITRO-

NITRO

GEN,

GEN,

PrtO

S-

AMMONIA

ORGANIC

PHORUS/

TOTAL

TOTAL

TOTAL

(MG/L

(MG/L

(MG/L

AS N)

AS N)

AS P)

(00610)

(00605)

(00665)

.020

<.010

.030

<.060

<.060

<.060

<.060

.020

.040

.030

.010

.020

.010

<.060

<.060

.040

.050

.020

.020

.060

.030

<.060

<.06u

<.060

<.060

<.060

<.060

.080

.23

.040

.100

.57

.060

.010

.010

.010

.020

.38

.040

.66

.010

.37

.040

.59

.040

.38

.030

.49

.060

.010

.010

1.1

.020

.75

.030

.48

.050

.58

.040

.24

.030

.37

.040

.010

.010

.010

.023

.010

.010

.22

.050

Tab

le 3

-.--

Wa

ter-

qu

alit

y d

ata

from

wells

an

d sp

rings

in

the

A

ust

in

urba

n st

udy

are

a C

ontin

ued

LOCAL

IDENT

IFIER

YD 58-42-809

YD 58-42-814

YD 58-42-913

YD 58-42-926

YD 58-49-604

YD 58-50-101

YD 58-50-206

YD 58-50-211

YD 58-50-215

YD-58-50-220

YD 58-50-401

YD 58-50-406

YD 58-50-403

YD-58-5C-412

YO 58-50-502

YD 58-50-704

YD-5S-50-705

YD-58-50-721

DATE

OFSAMPLE

83-07-18

83-07-18

83-07-18

83-05-21

83-05-22

83-05-23

83-05-25

33-07-18

83-07-22

83-07-19

83-07-19

83-07-19

83-07-19

83-05-21

83-05-23

63-07-22

83-07-19

83-07-19

83-07-19

83-07-20

83-07-20

83-05-21

83-05-22

83-05-23

83-05-25

83-05-21

83-05-23

HARD

NESS

(MG/L

ASCAC03)

(00900)

250

280

340 -- -- -- --

300

340

300

260

290

303

300

-- 310

320

310

300

240

250

-- -- -- -- __ --

HARD

NESS

/'NONCAR-

BONATE

(MG/L

CAC03)

(00902) 36 43 37 --

--

-- 39 35 37 20 32 19 54 -- 27 53 15 22 23 28 -- __ --

CALC

IUM

OIS-

SDLVEO

(MG/L

AS CA)

(00915)

TRAVIS

67 77

100

-- --

--

85 87 61 66

79 70

82--

35 88 75 33 69 71

----

__--

MAGNE

SIUM,

DIS

SOLVED

(MG/L

AS MG

)(00925)

19 22 21

--

21 31 35 23 23 30 24

--

23 25 31 23

17 17

--

--

SODIUM,

DIS

SOLVED

(MG/L

AS MA)

(00930)

3.6

7.9

6.3 --

-- --

--

9.1

7.4

7.1

8.0

12

9.3

1 2

--

6.7

17 3.

1

6.2

6.8

6.6 --

-- --

SODIUM

AD

SORP

TION

RATIO

(00931) .2 .2 .2 -- --

--

-- .2 .2 .2 .2 .3 .2 .3 .2 .4 .2 .2 .2 .2 -- --

_-

POTAS

SIUM,

DIS

SOLVED

(MG/L

AS lO

(00935)

1.1

1.1 .90

--

1.2

2.5

2.6

1 .4

1 .2

1 .3

1 .1 .90

1.0 .80

.70

1 .2

1 .2 -

---

ALKA

LINITY

FIELD

(MG/L

ASCAC03)

(00410)

210

240

300

260

260

270

270

260

310

2oO

2*0

2&0

230

250

260

280

270

300

280

220

220

250

250

250

250

260

260

SULFATE

DIS

SOLVED

(MG/L

AS S04)

(00945)

26 24

16

--

--

23 22 77 13 23

8.8

36

12 45 6.6

7.6

18 16

--

--

YO

58-5

0-8

10

53-0

7-2

0290

59

6133

382

.923

013

0

Tab

le 3

. W

ate

r-q

ua

lity

data

fr

om w

ells

an

d sp

rings

in

the

A

ust

in

urba

n st

udy

are

a-C

on

tinu

ed

LOCAL

IDENT

I

FIER

DATE

OF

SAMPLE

TIME

PUMP

OR FLOW

PERIOD

PRIOR

TO SAM

PLING

(MIN)

ARSENIC

DIS

SOLVED

(UG/L

AS AS

)

BARIUM/

DIS

SOLVED

(UG/L

AS 3A

)

CADMIUM

DIS

SOLVED

(UG/L

AS CD

)

CHRO

MIUM/

DIS

SOLVED

(UG/L

AS CR)

COPPER/

DIS

SOLVED

(UG/L

AS CU)

IRON/

DIS

SOLVED

(UG/L

AS FE)

LEAD/

DIS

SOLVED

(UG/L

AS PB)

(72004)

(01000)

(01005)

(01025)

(01030)

(01040)

(01046)

(01049)

TRAVIS

YD-58-50-220

YD-58-50-705

YD-53-50-721

33-05-21

83-05-23

83-05-21

83-05-23

83-05-21

83-05-23

YO-58-50-220

YD-58-50-705

YD-58-50-721

1130

0915

1135

1030

1105

0955

20 20 20 20 20 20

83-05-21

83-05-23

33-05-21

83-05-23

83-05-21

83-05-23

94

<100

100

<100

<100

300

510

130

230 10 10

96 10 30 40 10 20

Tab

le 9

.--W

ate

r-q

ua

lity

data

fr

om w

ells

an

d sp

rings

in

the

A

ust

in

urba

n st

udy

are

a C

ontin

ued

01 o

LOCAL

IDENT

I

FIER

LR-53-49-801

LR 53-49-903

LR 58-57-101

LR-58-57-202

LR 58-57-303

LR-58-57-402

LR-58-57-901

LR 58-58-105

LR 58-58-403

LR-58-53-406

LR-58-58-704

DATE

OFSAMPLE

83-07-22

63-07-20

83-07-20

83-07-21

83-07-21

83-07-21

63-07-22

83-07-21

83-07-22

83-07-25

83-07-21

TIME

0317

0830

1055

0950

1115

0835

1130

1330

1215

1140

1425

PUMP

OR FLOW

PERIOD

PRIOR

TO SAM

PLING

(MIN)

(72004) 25 25 30 20 20 25 30 25 30 20 20

DEPTH

OF

WELL/

TOTAL

(FEET)

(72008)

HAYS

100

200

123

200

315

330

575

477

390

525

532

DEPTH

BELOW

LAND

SURFACE

(WATER

LEVEL)

(FEET)

(72019)

44.80

19.40

94.00 --

140.00

SPE

CIFIC

CON

DUCT

ANCE

(UMHOS)

(00095)

671

603

654

667

590

o03

489

499

539

569

1060

PH

(STAND

ARD

UNITS)

(00400)

7.2

7.3

7.2

7.2

7.4

7.0

7.8

7.4

7.3

7.3

7.6

TEMPER

ATURE

(DEG C)

(00010)

21.5

23.5

24.5

23.0

26.5

24.0

24.0

23.0

2o.O

CCLI-

STREP-

FORM/

TOCOCCI

FECAL/

FECAL/

0.7

KF AGAR

UM-MF

(COLS.

(COLS./

PER

100 ML)

100 ML)

(31625)

(31673)

K2

K1

<1

K2

K3

K23

<1

K6

<1

52

<1

K9

K3

K21

25

73

<1

39

<1

<1

K7

K12

Tab

le 3

.--W

ate

r-qual ity

data

fr

om w

ells

an

d sp

rin

gs

in

the

A

ust

in

urba

n st

ud

y are

a C

ontinued

LOCAL

IDENT

IFIER

LR-58-49-801

LR 53-49-903

LR 58-57-101

LR-58-57-202

LR 58-57-303

LR-58-57-402

LR-58-57-901

LR 58-58-105

LR 58-58-403

LR-58-58-406

LR-58-58-704

DATE

OFSAMPLE

83-07-22

83-07-20

83-07-20

63-07-21

83-07-21

33-07-21

83-07-22

83-07-21

83-07-22

83-07-25

83-07-21

CHLO

RIDE,

DIS

SOLVED

(MG/L

AS CD

(00940)

13

8.7

9.8

14 14 14

9.0

12 12 12 93

FLUO-

RIOE,

DIS

SOLVED

(MG/L

AS F)

(00950)

.30

.20

.20

.30

.20

.30

.40

.40

.50

.30

3.8

SILICA,

DIS

SOLVED

(MG/L

ASSI02)

(00955)

HAYS 11 12 13 12 12 13 11 11 11 11 12

SOLIDS,

SUM OF

CONSTI

TUENTS,

DIS

SOLVED

(MG/L)

(70301)

3*0

340

360

380

330

350

270

270

320

310

620

NITRO

GEN/

N02+N03

TOTAL

(MG/L

AS N)

(00630)

.800

.700

.400

1.10

1.20

<.100

.500

1.60

1.40

1.60

<.100

NITRO

GEN,

NITRITE

TOTAL

(MG/L

AS N)

(00615)

<.020

<.020

<.020

<.020

<.020

<.020

<.020

<.020

<.020

<.020

<.020

NITRO

GEN/

AMMONIA

TOTAL

(MG/L

AS N)

(00610)

.040

.030

.030

.040

.040

.070

.080

.070

.060

.090

.510

NITRO

GEN,

ORGANIC

TOTAL

(MG/L

AS N)

(00605)

.76

.37

.47

.76

.76

.43

.22

.83

.54

.41

.49

PHOS

PHORUS,

TOTAL

(MG/L

AS P)

(00665)

.020

.020

.030

.010

.020

.030

.010

.020

.010

.010

.010

Tab

le 9.-

-Wate

r-qualit

y

data

fr

om w

ells

an

d sp

rin

gs

in

the A

ust

in

urba

n st

udy

are

a C

ontin

ued

LOCAL

IDENT

I

FIER

LR-53-49-801

LR 58-49-903

LR 58-57-101

LR-58-57-202

LR 58-57-303

LR-53-57-402

LR-5S-57-901

LR 58-53-105

LR 53-58-403

LR-58-58-406

i KJ LR-53-58-704

HARD-

HARD-

NESS/

DATE

NESS

NONCAR-

OF

(MG/L

BONATE

SAMPLE

AS

(MG/L

CAC03)

CAC03)

(00900)

(00902)

83-07-22

83-07-20

63-07-20

83-07-21

33-07-21

33-07-21

33-07-22

33-07-21

33-07-22

83-07-25

33-07-21

350

320

330

360

310

330

260

240

300

300

300

19 13

4

24 14 37 15 15 27 30 74

CALCIUM

DIS

SOLVED

(MG/L

AS CA)

(00915)

HAYS 95 93 99 38 81 65 56 60 76 77 59

MAGNE

SIUM/

DIS

SOLVED

(MG/L

AS MG

) (00925)

27 19 21 35 27 40 23 23 26 26 38

SODIUM

POTAS-

ALKA-

SODIUM,

AD-

SIUM/

LINITY

OIS-

SORP-

DIS-

FIELD

SOLVED

TION

SOLVED

(MG/L

(MG/L

RATIO

(MG/L

AS

AS NA

) AS

K)

CAC03)

(00930)

(00931)

(00935)

(00410)

6.4

5.3

6.1

6.9

7.4

7.2

5.6

6.7

6.5

6.5

97

.2 .1 .2 .2 .2 .2 .2 .2 .2 .2

2

1 .6 .60

.90

1.3 .80

2.9

1.2

1.4

1.3

1.3

7.4

330

310

330

340

300

290

240

230

270

270

230

SULFATE

DIS

SOLVED

(MG/L

AS S0

4)

(03945)

26

9.6

13 16 6.

5

30 1o 19 27 15

170

Tab

le 1

0.

Mo

nth

ly w

ate

r-le

vel

mea

sure

men

ts

of

ob

serv

atio

n w

ells

in

th

e

Aust

in

urba

n st

udy

are

a,

1983

w

ate

r ye

ar

\J

Distance b

elow

lan

d-su

rfac

eWe

l 1

number

YD-5

8-42-805 810

903

925

LR58 -49-801

YD-5

8-50

-101 211

K

213

00

216

217

301

412

517

704

801

LR-58-

57-201 302

Oct.

229.

50

198.

50

29.14

141.

50

38.30

-- 252.

40 y18

1.60

160.

30

192.

85

199.

90

132.

40

162.

10

__

Nov.

229.

50

192.

25

29.1

5

141.

75

205.

55

253.6

y 189.0

160.

70

195.

45

202.

50

129.

70

163.1

_

Dec.

228.90

190.

70

28.3

8

142.

10

37.5

0

176.

20

219.

25

252.

50

y 185.

90

161.

50

190.

60

197.

95

124.

40

171.

60

207.

40

Jan.

232.30

189.10

28.5

3

142.30

34.1

0

180.10

200.20

218.90

251.75

y 185.75

159.0

187.50

193.40

121.85

165.70

212.10

Feb.

234.20

187.40

31.6

9

141.55

34.1

0

175.00

184.80

218.80

247.70

87.15

183.60

160.85

175.30

115.10

163.85

_

Mar.

221.80

187.00

26.4

3

139.95

29.3

0

174.85

180.55

216.50

232.05

75.0

5

175.25

159.65

153.80

165.45

160.95

185.90

Apr.

226.90

187.30

26.64

139.15

35.6

5

177.35

193.60

217.

90

228.00

78.4

0

167.40

157.30

150.30

157.45

87.75

158.80

177.65

datu

m JY

eet)

May

226.80

187.

20

26.20

138.

90

31.80

176.

00

182.70

214.

65

230.

20

81.1

0

162.70

157.65

145.35

152.80

81.5

0

157.10

172.20

June

228.

00

187.45

30.04

138.55

35.7

0

199.10

225.44

77.7

0

157.35

158.

30

143.90

150.70

82.8

0

174.

10

July

Au

g

229.

187.70

187. 27.

139. 38.

179.

210.

217.

233.

116.

156.

158.

75

155.

Sept.

75 9 06 3 5 55 35 15

5 0 30

--

15

153.4

158.6

92.

158.

187.

85 7 95

Tab

le 1

(X M

onth

ly w

ate

r-le

vel

mea

sure

men

ts of

ob

serv

atio

n w

ells

in

th

e A

ust

in

urba

n st

udy

area

, 19

83

wat

er y

ear

I/ C

on

tinu

ed

Distance b

elow l

and-

surf

ace

Well number

Oct.

402

94.35

503

903

227.

55

58-101

130.

20

111

301

150.65

504

185.

30

Nov.

93.8

0

231.25

130.

9

151.

80

186.

55

Dec.

94.8

0

229.50

126.

60

180.90

153.

20

186.

85

Jan.

92.70

134.

90

229.

05

130.30

179.

80

154.05

188.60

Feb.

92.50

131.

50

226.00

120.

85

174.20

154.

40

186.45

Mar.

93.50

99.80

97.60

160.35

153.

40

180.50

Apr.

91.50

103.35

212.50

91.25

153.

36

150.30

173.15

datum

(fee

t)May 92.0

0

102.85

204.45

105.

50

139.

10

146.

12

168.

10

June

July

93.

109.

207. 85.

140.

142.

164.

60

93.0

80 95 95 60 95

141.

1

70

Aug

120.

134.

201.

105.

150.

143.

164.

Sept

.

8 6 15 8 75 4 14

0.45

80

I/

All

mea

sure

men

ts

wer

e m

ade

durin

g th

e la

st

wee

k o

f th

e m

onth

. Se

e ta

ble

7

for

a listing

of

wate

r-le

vel

mea

sure

men

ts o

f a

dd

itio

na

l w

ells

mad

e fo

r th

e a

nnua

l w

ate

r-le

vel

surv

ey.

2/

Wel

l d

ry.

Documents

HYDROLOGIC DATA FOR URBAN STUDIES IN THE AUSTIN, …pubs.usgs.gov/of/1985/0172/report.pdfJ. D. Gordon, D. L. Pate, M. E. Dorsey U.S. Geological Survey INTRODUCTION Hydrologic investigations