USGS Water-Year Summary 2021
11458433 Sonoma Creek at Kenwood, CA
LOCATION - Lat 38°25'08", long 122°33'42" referenced to North American Datum of 1927, Sonoma County, CA, Hydrologic Unit 18050002, in Los Guilicos Land Grant, on right bank, 0.8 mi northwest of Kenwood, and 0.9 mi downstream of Highway 12 bridge.
DRAINAGE AREA - 14.3 mi².
- Discharge for the period Jan 9-13, 2017, was revised on Feb 5, 2018, based on reevaluation of the estimations during that period.
PERIOD OF RECORD - October 2008 to current year.
GAGE - Water-stage recorder. Datum of gage is 420 ft above NGVD of 1929, from topographic map.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 2,531 ft³/s, Feb. 7, 2017, gage height, 13.57 ft; no flow at times.
PERIOD OF RECORD
DISCRETE WATER-QUALITY DATA:
CHEMICAL DATA: Water years March 2008 to 2013.
CONTINUOUS WATER-QUALITY DATA:
SPECIFIC CONDUCTANCE: Water years October 2008 to current year.
WATER TEMPERATURE: Water years October 2008 to current year.
INSTRUMENTATION - Water-quality monitor on right bank since July 21, 2009. Electronic data logger with 15 minute interval.