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Water-Year Summary for Site 08158700

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

Water year 2024: 2023-10-01 to 2024-09-30
 
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USGS Water-Year Summary 2024
08158700 Onion Creek near Driftwood, TX
LOCATION - Lat 30°04'58", long 98°00'27" referenced to North American Datum of 1927, Hays County, TX, Hydrologic Unit 12090205, on left bank, 160 ft left of the upstream side of bridge at low-water crossing on Farm Road 150, 3.2 mi southeast of Driftwood, and 10 mi west of Buda.
DRAINAGE AREA - 124 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - Apr. 1958, Nov. 1961 to June 1979 (periodic discharge measurements only), July 1979 to current year.
GAGE -

Water-stage recorder.  Satellite telemetry at station.

Datum of the gage is 868.52 ft NAVD88 based on a Level 1 GNSS Static survey processed through OPUS with Ref Frame NAD83 (2011)(EPOCH:2010.0000) IGS08 (EPOCH:2018.8683/8703) and Geoid 12B.  The survey was completed over two days: 11/13 and 11/14/2018 on a TRM tied into local datum via differential levels. 

The datum of the gage prior to the date above was 878.13 ft NGVD29, obtained via levels. 

REMARKS - Records fair. No known regulation or diversions. 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 Sept. 2005, Jan. 2007 to Mar. 2007, Oct. 2009 to current year. BIOCHEMICAL DATA: Jan. 1974 to Sept. 2005, Jan. 2007 to current year. BIOLOGICAL DATA: Jan. 1978 to Sep. 2001, Sep. 2005, July 2007, Oct. 2009 to Mar. 2010. RADIOCHEMICAL DATA: Jan. 1980 to June 1981, Jan. 2007 to Mar. 2007. STABLE ISOTOPES DATA: Oct. 2009 to Mar. 2010. PESTICIDE DATA: Jan. 1978 to June 1985, Sept. 2003 to Aug. 2005, July 2007 to Feb. 2010. ORGANICS, OTHER DATA: Nov. 2009 to Feb. 2010. SEDIMENT DATA: Nov. 2000, June 2002 to Dec. 2002, Apr. 2004 to Oct. 2004, Jan. 2007 to May 2007, Oct. 2009 to Apr. 2010.