USGS Water-Year Summary for Site 09358000

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

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

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USGS Water-Year Summary 2023

09358000 ANIMAS RIVER AT SILVERTON, CO

LOCATION - Lat 37°48'40", long 107°39'31" referenced to North American Datum of 1927, in SE 1/4 NW 1/4 sec.17, T.41 N., R.7 W., San Juan County, CO, Hydrologic Unit 14080104, on right bank at southeast end of 14th St., 800 ft. upstream from Cement Creek, in the city of Silverton.

DRAINAGE AREA - 70.6 mi².

REVISIONS HISTORY - WDR CO 92-2: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - June to October 1903 (staff gage), monthly discharge only, published in WSP 1313. October 1991 to September 1993, October 1994 to current year.

GAGE - Water-stage recorder with satellite telemetry and crest-stage gage. Elevation of gage is 9,290 ft above NGVD of 1929, from topographic map.

REMARKS - Water year 2014; records fair except for estimated daily discharges, which are poor. Water year 2015; records fair except for estimated daily discharges, which are poor. Water year 2016; records fair except for estimated daily discharges, which are poor. Water year 2017; records fair except for estimated daily discharges, which are poor. Water year 2018; records fair except for estimated daily discharges, which are poor. Water year 2019; records fair except for estimated daily discharges, which are poor. Water year 2020; records fair except for estimated daily discharges, which are poor. Water year 2021; records fair except for estimated daily discharges, which are poor. Water year 2022; records fair except for estimated daily discharges, which are poor. Water year 2023; records fair except for estimated daily discharges, which are poor. No diversions upstream for irrigation in Animas River drainage. No known regulation upstream from station. Mineral Point Ditch exports 100 to 400 acre-ft of water per year from headwaters of Animas River to Uncompahgre River drainage. City of Silverton diverts some water from Boulder Creek (tributary) for municipal use.

EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage since at least 1884, was probably that of Oct. 5, 1911.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - April 2019 to current year (seasonal records only).

INSTRUMENTATION - Tipping-bucket rain gage with satellite telemetry. Elevation of gage is 9,290 ft above NGVD of 1929, from topographic map.

EXTREMES FOR PERIOD OF RECORD - (seasonal only) Maximum daily precipitation, 1.86 inches, May 21, 2021.

REMARKS - Gage operated seasonally, April through September.