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Water-Year Summary for Site 12453679

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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.
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Available Parameters
62614 Elevation, lake/res, NGVD29(Mean)  

Water year 2025: 2025-10-01 to 2026-09-30
 
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USGS Water-Year Summary 2025
12453679 ROCKY REACH HW UNIT 10W NEAR WENATCHEE, WA
LOCATION - Lat 47°32'00", long 120°18'00" referenced to North American Datum of 1927, Chelan County, WA, Hydrologic Unit 17020010,
SURFACE-WATER RECORDS
PERIOD OF RECORD - September 21, 2022, to current year. 
GAGE - U.S. Geological Survey water-stage recorder. Datum of gage is NGVD of 1929 and is 3.64 ft above NAVD of 1988 (from GNSS survey by USGS Nov. 3, 2022).
REMARKS - Reservoir is formed by concrete dam; construction of dam began in 1956; completed in 1961. Water is used for power generation and irrigation. Flow is regulated by ten major reservoirs and numerous smaller reservoirs and powerplants. 
EXTREMES FOR PERIOD OF RECORD - Maximum Elevation 707.24 ft, February 19, 2023; minimum elevation 703.52 ft, June 4, 2023.