USGS Water-Year Summary for Site 08412500

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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

08412500 Pecos River near Orla, TX

LOCATION - Lat 31°52'21", long 103°49'52" referenced to North American Datum of 1927, Reeves County, TX, Hydrologic Unit 13070001, on right bank at bridge on Farm Road 652, 5.5 mi downstream from Salt Creek Arroyo (Screw Bean Draw), 5.9 mi northeast of Orla, and 8.5 mi downstream from Red Bluff Reservoir.

DRAINAGE AREA - 25,070 mi² of which 3,841 mi² probably is noncontributing.

REVISIONS HISTORY - WSP 928: 1937.

SURFACE-WATER RECORDS

PERIOD OF RECORD - May 1937 to current year.

GAGE - Water-stage recorder. Datum of gage is 2,732.358ft above NAVD88. Prior to 14 September 2022, the Datum of the Gage was 2,730.86ft above NGVD of 1929. Prior to Nov. 16, 1969, at site 6.9 mi downstream, at datum 12.81ft lower. Satellite telemeter at station.

COOPERATION - Texas Commission on Environmental Quality (TCEQ) and Texas Water Development Board (TWDB).

REMARKS - Since the gage was installed, flow has been regulated by Red Bluff Reservoir (station 08410000) 8.5 mi upstream. Occasional runoff occurs from draws between dam and station. There are many diversions upstream of Red Bluff Reservoir for irrigation. Some records listed in the period of record may not be available electronically.

WATER-QUALITY RECORDS

PERIOD OF RECORD - CHEMICAL DATA: July 1937 to Jan. 2003.

PERIOD OF DAILY RECORD -

WATER TEMPERATURE: Nov. 2014 to Sept. 2015, Nov. 2015 to Sept. 2016, Sept. 2017 to to current year.

SPECIFIC CONDUCTANCE: Nov. 2014 to Sept. 2015, Nov. 2015 to Sept. 2016, Sept. 2017 to to current year.

pH: Nov. 2014 to Sept. 2015, Nov. 2015 to Sept. 2016.

DISSOLVED OXYGEN: Nov. 2014 to Sept. 2015, Nov. 2015 to Sept. 2016, Sept. 2017 to to current year.

COOPERATION - Texas Commission on Enviromental Quality.

INSTRUMENTATION -

A four parameter water quality instrument from Oct. 2014 to Sept 2016.

A three parameter water quality instrument from September 2017 to current year.