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Water-Year Summary for Site 11468900

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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
00010 Temperature, water(Max.,Min.,Med.)  
00060 Discharge(Mean)  

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

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USGS Water-Year Summary 2023
11468900 Mattole River near Ettersburg, CA
LOCATION - Lat 40°08'22", long 123°59'25" referenced to North American Datum of 1927, in NW 1/4 SE 1/4 sec.06, T.4 S., R.2 E., Humboldt County, CA, Hydrologic Unit 18010107, Humboldt meridian, on left bank, upstream side of Ettersburg Honeydew Road, 0.3 mi east of Ettersburg, 0.4 mi downstream of Bear Creek, and 31.9 mi from Mattole River near Petrolia.
DRAINAGE AREA - 70.9 mi².
REVISIONS HISTORY - WDR CA-03-2: (peaks above the base).
PERIOD OF RECORD - June 2001 to current year.
REMARKS - No regulation or diversion upstream.
Water temperature records were revised for September 2009 and are available from the California Water Science Center.