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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
11466170 Matanzas Creek at Santa Rosa, CA
LOCATION - Lat 38°26'20", long 122°42'05" referenced to North American Datum of 1927, Sonoma County, CA, Hydrologic Unit 18010110, in Cabeza de Santa Rosa Grant, on right bank, 5 ft downstream of bridge on Brookwood Avenue, in Santa Rosa.
DRAINAGE AREA - 21 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - November 2002 to current year (seasonal records only). Stage only November 2002 to April 2004.
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929 and 2.48 ft above NAVD of 1988.
REMARKS - Gage is for local flood studies and is normally operated seasonally from Oct. 1 to Apr. 30. See schematic diagram of Russian River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 3,700 ft³/s, Dec. 31, 2005, gage height 169.40 ft; minimum daily discharge, 0.01 ft³/s, Oct. 1, 9-11, 2009.
