USGS Water-Year Summary 2024
08155400 Barton Creek above Barton Springs, Austin, TX
LOCATION - Lat 30°15'48", long 97°46'19" referenced to North American Datum of 1927, Travis County, TX, Hydrologic Unit 12090205, on left bank of Barton Creek approximately 200 ft above Barton Springs Pool.
DRAINAGE AREA - 125 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - Sept. 1981 to Oct. 1984 (daily mean discharge less than base discharge), Sept. 1998 to current year.
GAGE -
Water-stage recorder. Satellite telemeter at station. The Datum of the gage is: 430.725 ft NAVD88 based on a Level 2 Static GNSS Survey processed through OPUS with Ref Frame NAD83(2011)(EPOCH:2010.0000) ITRF2014 (EPOCH:2021.2210) and Geoid 18. The survey was completed 03/22/2021 over a TRM and referenced to local datum. The previous Datum of the gage was 430.5 ft above NGVD29 via survey levels.
WATER-QUALITY RECORDS
PERIOD OF RECORD - CHEMICAL DATA: Nov. 1969, Jan. 1998 to Apr. 2008, Jan. 2010 to Sept. 2018.
BIOCHEMICAL DATA: Nov. 1969, Jan. 1998 to Apr. 2008, Jan. 2010 to Sept. 2018.
PESTICIDE DATA: May 2000 to Dec. 2002, Jan. 2004 to July 2005.
SEDIMENT CHEMISTRY DATA: May 2000 to Feb. 2003.
SEDIMENT DATA: May 1999 to Oct. 2004, Mar. 2006 to Mar. 2010.