USGS Water-Year Summary 2021
08374550 Rio Grande near Castolon, TX
LOCATION - Lat 29°08'16", long 103°31'28" referenced to North American Datum of 1927, Brewster County, TX, Hydrologic Unit 13040205,
DRAINAGE AREA - Not determined.
PERIOD OF RECORD - Aug. 2007 to current year.
GAGE - Water-stage recorder. Satellite telemeter at station. Prior to September 2008, the gage was located about 200 feet downstream.
COOPERATION - Texas Commission on Environmental Quality (TCEQ)
PERIOD OF RECORD
CHEMICAL DATA: Feb. 2006.
BIOCHEMICAL DATA: Feb. 2006.
RADIOCHEMICAL DATA: Feb. 2006.
PERIOD OF DAILY RECORD
WATER TEMPERATURE: Sept. 2011 to June 2014.
SPECIFIC CONDUCTANCE: Sept. 2011 to June 2014.
pH: Sept. 2011 to June 2014.
DISSOLVED OXYGEN: Sept. 2011 to June 2014.