USGS Water-Year Summary for Site 09057500

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	00060 Discharge(Mean)

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

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USGS Water-Year Summary 2023

09057500 BLUE RIVER BELOW GREEN MOUNTAIN RESERVOIR, CO

LOCATION - Lat 39°52'49", long 106°20'00" referenced to North American Datum of 1927, in SW 1/4 NE 1/4 sec.15, T.2 S., R.80 W., Summit County, CO, Hydrologic Unit 14010002, on left bank 0.3 mi upstream from Elliott Creek, 0.3 mi downstream from Green Mountain Dam, and 13 mi southeast of Kremmling.

DRAINAGE AREA - 597 mi². includes 14.3 mi² of Elliott Creek above diversion for Elliott Creek Feeder Canal.

REVISIONS HISTORY - WDR-US-2011: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1937 to current year. Prior to October 1943, published as Blue River below Green Mountain Reservoir, near Kremmling. Statistical summary computed for 1943 to current year, subsequent to completion of Green Mountain Reservoir.

GAGE - Water-stage recorder with satellite telemetry and crest-stage gage. Datum of gage is 7,682.66 ft above NGVD of 1929, (levels by U.S. Bureau of Reclamation). Prior to Oct. 1, 1951, water-stage recorder at site 3.7 mi downstream at different datum.

REMARKS - Water year 2014; no estimated daily discharges. Records good. Water year 2015; no estimated daily discharges. Records good. Water Year 2016; no estimated daily discharges. Records good. Water year 2017; no estimated daily discharges. Records good. Water year 2018; no estimated daily discharges. Records good. Water year 2019; records good except for estimated daily discharges, which are poor. Water year 2020; no estimated daily discharges. Records good. Water year 2021; no estimated daily discharges. Records good. Water year 2022; records good except for estimated daily discharges, which are poor. Water year 2023; no estimated daily discharges. Records good. Flow regulated by Green Mountain Reservoir since Nov. 1942 (station 09057000). Diversions for irrigation of about 5,000 acres upstream from station. Transmountain diversions upstream from station.

EXTREMES FOR PERIOD PRIOR TO REGULATION - Minimum daily discharge (prior to Green Mountain Reservoir), 80 ft³/s, Feb 18-24, 1938, Feb 18-19, 1940.