USGS Water-Year Summary 2019
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 DAILY RECORD - Continuous Water-quality: 2008 WY to current year.
SPECIFIC CONDUCTANCE: 2008 WY to current year.
WATER TEMPERATURE: 2008 WY to current year.
INSTRUMENTATION - Water-quality monitor on right bank since July 21, 2009. Electronic data logger with 15 minute interval.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum recorded, 25.4°C, June 30, 2015; minimum recorded, 0.4°C, Dec. 10, 2013.
SPECIFIC CONDUCTANCE: Maximum recorded, 476 microsiemens, July 7-9, 2015; minimum recorded, 43 microsiemens, November 30, 2014.