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Water-Year Summary for Site 09363500

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  • 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.
Available Parameters
00010 Temperature, water(Mean,Max.,Min.)  
00045 Precipitation(Sum)  
00060 Discharge(Mean)  
00095 Specific cond at 25C(Mean,Max.)  
00400 pH(Med.,Max.,Min.)  
63680 Turbidity, Form Neph(Mean,Max.,Min.)  

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

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USGS Water-Year Summary 2022
LOCATION - Lat 37°02'11.65", long 107°52'31.2" referenced to North American Datum of 1983, La Plata County, CO, Hydrologic Unit 14080104, on right bank 0.8 mi downstream from Florida River, 2.5 mi upstream from Colorado-New Mexico State line, 8.5 mi north of Cedar Hill, and at mile 32.9.
DRAINAGE AREA - 1,090 mi². (approximately)
REVISIONS HISTORY - WSP 1563: 1940 and 1946 (monthly figures only).
PERIOD OF RECORD - October 1933 to current year. Monthly discharge only for October and November 1933, published in WSP 1313.
GAGE - Water-stage recorder with satellite telemetry and crest-stage gage. Elevation of gage is 5,960 ft above NGVD of 1929, from topographic map. Prior to Sept. 14, 1937, at datum between 1.52 ft and 1.36 ft higher. Sept. 15, 1937, to Sept. 30, 1946, at datum 1.36 ft higher.
REMARKS - Water years 2014-2019; records fair except for estimated discharges, which are poor. Diversions for irrigation of about 20,000 acres upstream from station. During water years 1944 to 1949, Twin Rocks canal diverted upstream from station for irrigation, now diverted downstream. Slight regulation by Lemon Dam about 30 mi upstream on Florida River since Nov. 1963 (capacity, 40,100 acre-ft). Streamwater may be pumped from the river in Durango, CO for storage in Nighthorse Reservoir (capacity, 120,000 acre-ft), as part of the Animas-La Plata Project.
EXTREMES OUTSIDE PERIOD OF RECORD - A major flood occurred in October 1911 at this location.
PERIOD OF RECORD - PRECIPITATION: August 2018 to current year.
INSTRUMENTATION - Tipping-bucket rain gage, recording in 0.01 inch-increments.
PERIOD OF RECORD - Water years 1943, 1945, 1957 to 1959, 1969 to 1977, 1987 to 1998, 2003 to 2012, 2016 to current year.
WATER TEMPERATURE: March 2016 to current year.
SPECIFIC CONDUCTANCE: March 2016 to current year.
pH: March 2016 to current year.
TURBIDITY: April 2016 to current year.
INSTRUMENTATION - Water-quality monitor since March 2016. Electronic data logger with 15-minute recording interval.