Click
to
hide
Water-Year
Summary
instructions
and
information
- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
08180640 Medina River at La Coste, TX
LOCATION - Lat 29°19'26", long 98°48'46" referenced to North American Datum of 1927, Medina County, TX, Hydrologic Unit 12100302, at downstream side of Farm Road 471, one mile north of La Coste, five miles upstream from Sherer Creek, and 27.4 miles upstream from mouth.
DRAINAGE AREA - 805 mi². of which 634 mi² is above dam forming Medina Lake.
SURFACE-WATER RECORDS
GAGE - Water-stage recorder. Datum of gage is 667.36 ft above NAVD88. Dec 19,1986 to Sept. 30, 2000, water-stage recorder at current site and previous datum of 667.15 ft above NGVD29. Satellite telemeter at station.
REMARKS - Record rated good for WY. Flow partly regulated by Medina Dam (drainage area 634mi) with a spill crest capacity of 254,000 acre-feet. Water is passed through the gates into Medina Diversion Reservoir, with a capacity of 4,500 acre-feet, which regulates the downstream flow. Some records listed in the "Period of Record" for surface water and water quality may not be available electronically. For additional information see RMS period analysis notes.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Jan. 1987 to Sept. 2001.
WATER TEMPERATURE: Jan. 1987 to Sept. 2001.
pH: Jan. 1987 to Sept. 2001.
DISSOLVED OXYGEN: Jan. 1986 to Sept. 2001.
