USGS Water-Year Summary for Site 08155240

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

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

08155240 Barton Creek at Lost Creek Boulevard, Austin, TX

LOCATION - Lat 30°16'26", long 97°50'40" referenced to North American Datum of 1927, Travis County, TX, Hydrologic Unit 12090205, 1.4 mi southwest of intersection of Lost Creek Boulevard and Loop 360, and 6.2 mi west of State Capitol Building in Austin.

DRAINAGE AREA - 107 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - Jan. 1979 to Sept. 1980 (periodic gage heights and discharge measurements only), Dec. 1988 to current year.

GAGE -

Water-stage recorder. Satellite telemetry at station.

Datum of the gage is 590.495 ft. NAVD88 based on a Level 2 Static GNSS survey processed through OPUS with Ref Frame NAD83 (2011)(EPOCH:2010.0000) ITRF2014 (EPOCH:2021.0325) and Geoid 18. The survey was completed 01/12/2021 over RM1.

The prior datum of the gage was 600 ft above NGVD of 1929, from topographic map.

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.

EXTREMES OUTSIDE PERIOD OF RECORD - The highest known peak was May 28, 1929, estimated as 39,400 ft³/s, based on slope-area measurement of peak flow at a site about 2.1 mi downstream.

WATER-QUALITY RECORDS

PERIOD OF RECORD - CHEMICAL DATA: Dec. 1988 to current year. BIOCHEMICAL DATA: Dec. 1988 to current year. BIOLOGICAL DATA: Dec. 1988 to Sep. 2003, May 2006 to Mar. 2010. STABLE ISOTOPES DATA: Jan. 2009 to Mar. 2010. PESTICIDE DATA: Jan. 1993 to May 1995, July 2007 to Feb. 2010. ORGANICS, OTHER DATA: Feb. 2009 to Feb. 2010. SEDIMENT CHEMISTRY DATA: Nov. 1993. SEDIMENT DATA: May 1999 to Dec. 2002, Apr. 2004 to June 2010.

INSTRUMENTATION - Stage-activated automatic sampler.

REMARKS - Water quality samples are collected for selected storm events.