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Water-Year Summary for Site 08158920

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Available Parameters
00060 Discharge(Min.,Mean,Max.)  
00065 Gage height(Min.,Mean,Max.)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
08158920 Williamson Creek at Oak Hill, TX
LOCATION - Lat 30°14'06", long 97°51'36" referenced to North American Datum of 1927, Travis County, TX, Hydrologic Unit 12090205, at downstream side of bridge on U.S. Highway 290 and State Highway 71 at intersection with McCarty Lane, and 7.7 mi southwest of the State Capitol Building in Austin.
DRAINAGE AREA - 6.30 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - Jan. 1974 to Feb. 1977 (periodic discharge measurements only), Jan. 1978 to Mar. 1993, Mar. 2003 to Sept. 2022.
GAGE - Water-stage recorder. Datum of gage is 798.68 ft above NGVD of 1929 (City of Austin benchmark). Prior to Mar. 2003, at present site at 2.0 ft lower datum. Satellite telemeter at station.
REMARKS - Records poor. No known regulation or diversion. No flow at times. Some records listed in the "Period of Record" for surface water and water quality may not be available electronically.
WATER-QUALITY RECORDS
PERIOD OF RECORD - CHEMICAL DATA: Jan. 1974 to Mar. 1993, July 2004 to Mar. 2005, Jan. 2007 to Oct. 2022. BIOCHEMICAL DATA: Jan. 1974 to Mar. 1993, July 2004 to Mar. 2005, Jan. 2007 to Oct. 2022. BIOLOGICAL DATA: Apr. 1978 to Mar. 1993, July 2007, Mar. 2009 to Mar 2010. RADIOCHEMICAL DATA: Apr. 1980, June 1981. STABLE ISOTOPES DATA: Mar. 2009 to Mar. 2010. PESTICIDE DATA: Jun. 1978 to Feb. 1985, July 2004 to Mar. 2005, July 2007 to Feb. 2010. ORGANICS, OTHER DATA: Mar. 2009 to Feb. 2010. SEDIMENT DATA: Nov. 2004, Jan. 2007 to Mar. 2010.