USGS Water-Year Summary 2020
08375300 Rio Grande at Boquillas Campground, Big Bend National Park, TX
LOCATION - Lat 29°11'00", long 102°58'30" referenced to North American Datum of 1927, Brewster County, TX, Hydrologic Unit 13040205,
DRAINAGE AREA - Not determined.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Aug. 2007 to current year.
GAGE - Water-stage recorder. Datum of gage is 1,845.928 ft above NAVD of 1988. Gage located near pump house at Boquillas Cpgd, Big Bnd NP, TX. Satellite telemeter at station.
COOPERATION - Texas Commission on Environmental Quality, TCEQ
WATER-QUALITY RECORDS
PERIOD OF RECORD -
CHEMICAL DATA: Feb. 2006.
BIOCHEMICAL DATA: Feb. 2006.
RADIOCHEMICAL: Feb. 2006.
PERIOD OF DAILY RECORD -
WATER TEMPERATURE: Sept. 2011 to current year.
SPECIFIC CONDUCTANCE: Sept. 2011 to current year.
pH: Sept. 2011 to current year.
DISSOLVED OXYGEN: Sept. 2011 to current year.
COOPERATION - Texas Commission on Environmental Quality.
INSTRUMENTATION -
A four parameter continuous water-quality monitoring instrument since Sept. 2011.
WY2011-2020 YSI 6 Series sonde.
WY2021-Current InSitu AquaTroll series multiparameter sonde.