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Water-Year Summary for Site 07091200

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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
00060 Discharge(Mean)  

Water year 2024: 2024-10-01 to 2025-09-30
 

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USGS Water-Year Summary 2024
07091200 ARKANSAS RIVER NEAR NATHROP, CO
LOCATION - Lat 38°39'08", long 106°03'02" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 sec.23, T.51 N., R.8 E., Chaffee County, CO, Hydrologic Unit 11020001, on right bank 300 ft upstream from end of Chaffee County Road 194 in Browns Canyon, 3.7 mi downstream from Browns Creek, 6.7 mi south of Nathrop, and 9 mi north of Salida.
DRAINAGE AREA - 1,055 mi².
REVISIONS HISTORY - WDR-US-2011: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1964 to September 1982. April 1989 to September 1993. October 1993 to current year (seasonal records only).
GAGE - Water-stage recorder with satellite telemetry. Elevation of gage is 7,350 ft above NGVD of 1929, from topographic map.
REMARKS - Water year 2014; records good except for flows above 750 ft³/s, and estimated daily discharges, which are poor. Water year 2015; records good except for flows above 750 ft³/s, and estimated daily discharges, which are poor. Water year 2016; records good except for flows above 750 ft³/s, and estimated daily discharges, which are poor. Water year 2017; records good except for estimated daily discharges, which are poor. Water year 2018; records good except for estimated daily discharges, which are poor. Water year 2019; records good 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; no estimated daily discharges. Records fair. Water year 2023; records fair except for estimated daily discharges, which are poor. Natural flow of stream affected by storage reservoirs, power developments, transbasin and transmountain diversions, diversions for irrigation and municipal use, groundwater withdrawals, return flows from irrigated areas, and flows from sewage-treatment plants.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 5,560 ft³/s, June 18, 2015, from rating curve extended above 5,500 ft³/s, gage height 8.62 ft.