USGS Water-Year Summary 2024
08201500 Seco Creek at Miller Ranch near Utopia, TX
LOCATION - Lat 29°34'23", long 99°24'10" referenced to North American Datum of 1927, Medina County, TX, Hydrologic Unit 12110107, on right bank, 200 ft upstream from county road crossing, 4.5 mi downstream from Cascade Creek, 7.9 mi southeast of Utopia, and 58.0 mi upstream from mouth.
DRAINAGE AREA - 45 mi².
REVISIONS HISTORY - WDR TX-83-3: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 1961 to current year.
PERIOD OF RECORD, Water-Quality.--
CHEMICAL DATA: Nov. 1965, Sept. 1969 to July 1994.
BIOCHEMICAL DATA: Mar. 1970 to July 1999.
PESTICIDE DATA: Jan. 1974 to Sept. 1998.
SEDIMENT DATA: Nov. 1965, Aug. 1994 to Sept. 1998.
GAGE - Water-stage recorder and crest-stage gages. Datum of gage is 1279.08ft NAVD88 surveyed 5/6/2022. 1,265.80 ft, from Magnolia Oil Company datum, adjustment unknown. Satellite telemeter at station. Concrete control was removed on May 7, 2007.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage since at least 1901, 16.4 ft June 17, 1958, from floodmarks (discharge, 52,600 ft³/s, by slope-area measurement of peak flow).
WATER-QUALITY RECORDS
PERIOD OF RECORD -
CHEMICAL DATA: Nov. 1965, Sept. 1969 to July 1994.
BIOCHEMICAL DATA: Mar. 1970 to July 1999.
PESTICIDE DATA: Jan. 1974 to Sept. 1998.
SEDIMENT DATA: Nov. 1965, Aug. 1994 to Sept. 1998.