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Water-Year Summary for Site 07227500

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Available Parameters
00010 Temperature, water(Max.,Min.,Mean)  
00060 Discharge(Mean)  
00065 Gage height(Mean)  
00095 Specific cond at 25C(Max.,Min.,Mean)  

Water year 2020: 2019-10-01 to 2020-09-30
 

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USGS Water-Year Summary 2020
07227500 Canadian River near Amarillo, TX
LOCATION - Lat 35°28'13", long 101°52'45" referenced to North American Datum of 1927, Potter County, TX, Hydrologic Unit 11090105, at downstream side of northbound bridge on U.S. Highways 87 and 287, 1,800 ft downstream from Pitcher Creek, 1.4 mi downstream from East Amarillo Creek, 1.7 mi downstream from Panhandle and Santa Fe Railway Co. bridge, 19 mi north of Amarillo, and 537.7 mi upstream from mouth.
DRAINAGE AREA - 19,445 mi² of which 4,069 mi² probably is noncontributing.
REVISIONS HISTORY - WSP 1341: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Jan. 1924 to Dec. 1925 (period no longer used in computation of average annual discharge), Apr. 1938 to current year. Monthly discharge only for some periods, published in WSP 1311.
GAGE - Water-stage recorder. Datum of gage is 2,989.16 ft above NGVD of 1929. Jan. 16, 1924, to Dec. 31, 1925, and Apr. 3 to June 1, 1938, nonrecording gage at site of old bridge 20 ft upstream at same datum. June 2 to Dec. 5, 1938, nonrecording gage at present site and datum. Satellite telemeter at station.
REMARKS - Since Dec. 1938, when storage began in the Conchas Reservoir, and 1963 in the Ute Reservoir, at least 10% of contributing drainage area has been regulated. Some records listed in the "Period of Record" for surface water and water quality may not be available electronically.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood in May 1914 reached a stage of about 24 ft; a higher stage probably occurred during a flood in Oct. 1904, but stage is unknown; information from local resident.
WATER-QUALITY RECORDS
PERIOD OF RECORD - CHEMICAL DATA: July 1948 to Oct. 1949, Feb. 1950 to Sept. 1997, Oct. 1998 to current year. BIOCHEMICAL DATA: Mar. 1968 to Sept. 1997, Oct. 1998 to current year. PESTICIDE DATA: Mar. 1968 to June 1981. RADIOCHEMICAL DATA: Jan. 1981 to June 1981. SEDIMENT DATA: July 1938 to July 1950, Dec. 1979, Aug. 1980.
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Oct. 1950 to Sept. 1995 (daily equivalent mean from observer), Oct. 1995 to current year. WATER TEMPERATURE: Aug. 1949 to Sept. 1995 (daily instantaneous values), Oct. 1995 to current year. SUSPENDED SEDIMENT DISCHARGE: Aug. 1949 to Sept. 1952.
INSTRUMENTATION - Water-quality monitor since Oct. 1995.
REMARKS - Mean monthly and annual concentrations and loads for selected chemical constituents have been computed for previous years using the daily records of specific conductance and a regression relation between each chemical constituent and specific conductance. The computation of the selected constituent loads might include estimated discharge or specific conductance data. Regression equations developed for this station may be obtained from the U.S. Geological Survey Texas Water Science Center; Austin, Texas upon request. Some records listed in the Period of Record for surface water and water quality may not be available electronically.
EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum, 11,100 microsiemens/cm, June 4, 2012; minimum, 57 microsiemens/cm, July 07, 2019. WATER TEMPERATURE: Maximum, 39.0°C, July 7, 1973; minimum, -0.9°C, Nov. 19, 2000.