USGS Water-Year Summary for Site 08437710

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	Available Parameters
	00060 Discharge(Max.,Min.,Mean)
	00065 Gage height(Max.,Min.,Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

08437710 Pecos Rv at RR 1776 nr Grandfalls, TX

LOCATION - Lat 31°22'00", long 103°00'20" referenced to North American Datum of 1927, Ward County, TX, Hydrologic Unit 13070001, approximately 300 ft downstream from Pecos River bridge on FM 1776.

DRAINAGE AREA - 34,740 mi² of which 7,055 mi² probably is noncontributing.

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 2007 to current year (daily mean discharge below 100 ft³/s); October 2012 to 2014 (daily mean discharge below 188 ft³/s); October 2015 to current date (daily mean discharge below 200 ft³/s.).

GAGE - Water-stage recorder. Datum of gage 2,440.00 ft above NAVD 1988.

COOPERATION - Texas Commission on Environmental Quality, TCEQ

REMARKS - Some records listed in the period of record may not be available electronically.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge 2,680 ft³/s, Oct. 01, 2014, gage height, 17.92 ft; discharge not reported (above base rating), from rating extension based on measurement no. 60, the following day.

WATER-QUALITY RECORDS

PERIOD OF DAILY RECORD -

WATER TEMPERATURE: Sept. 2011 to current year.

SPECIFIC CONDUCTANCE: Sept. 2011 to current year.

pH: September 2011 to November 2017.

DISSOLVED OXYGEN: Sept. 2011 to current year.

COOPERATION - Texas Commission on Environmental Quality.

INSTRUMENTATION -

A four parameter continuous water-quality monitoring sonde since from Sept. 2011 to Nov. 2017.

A three parameter continuous water-quality from Nov. 2017 to current year.

REMARKS - Interruptions or periods of missing record may be due to instrument failure, no flow conditions or data corrections exceeding allowable criteria, which were deleted. Other than no flow conditions, minimum and maximum extremes may have occurred during period of missing record.