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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.
USGS Water-Year Summary 2024
12447390 ANDREWS CREEK NEAR MAZAMA, WA
LOCATION - Lat 48°49'23", long 120°08'41" referenced to North American Datum of 1927, in NE 1/4 sec.01, T.38 N., R.21 E., Okanogan County, WA, Hydrologic Unit 17020008, Okanogan National Forest, on left bank 50 ft upstream from Blizzard Creek, 3.5 mi upstream from mouth, and 20 mi northeast of Mazama.
DRAINAGE AREA - 22.1 mi².
REVISIONS HISTORY - WDR WA-76-2: 1975. WDR WA-77-2: 1976.
SURFACE-WATER RECORDS
PERIOD OF RECORD - June 1968 to current year.
GAGE - Water-stage recorder. Datum of gage is 4,300 ft above NGVD of 1929 (from topographic map) and is 4,271.56 ft above NAVD of 1988 (from GNSS survey by USGS, Aug. 18, 2022).
REMARKS - No regulation or diversion. U.S. Geological Survey satellite telemeter at station.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1,120 ft³/s, June 10, 1972, gage height, 4.00 ft, from rating curve extended above 440 ft³/s; minimum discharge 0.97 ft³/s, Oct. 30, 2002.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Chemical analyses water years 1972-96, 2004 to current year.
PERIOD OF DAILY RECORD - WATER TEMPERATURE: October 2011 to current year.
INSTRUMENTATION - Water Temperature recorder with a 15-minute logging interval.
REMARKS -
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum 26.5 C, July 16, 2014; minimum 0.1 C, Nov. 17, 2011, Nov. 21, 2014.
