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Water-Year Summary for Site 383930122494801

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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(Min.,Max.,Mean)  
62611 Elevation, GW, NAVD88(Med.,Min.,Max.)  
72019 Water level, depth LSD(Max.,Min.,Med.)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
383930122494801 009N009W02F001M
LOCATION - Lat 38°39'30.09", long 122°49'47.75" referenced to North American Datum of 1983, in sec.00, T.9 N., R.8 W., Sonoma County, CA, Hydrologic Unit 18010110,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 42.5 ft. Upper casing diameter 2 in; top of first opening 33.5 ft, bottom of last opening 43.5 ft.  
DATUM - Land-surface datum is 169.15 ft above North American Vertical Datum of 1988. Measuring point: Top of casing. From local datum survey of mp=28.386, 2.92 ft above land-surface datum, Sep. 23, 2016 to Jun. 9, 2017; Top of casing, 2.93 ft above land-surface datum, Jun. 8, 2017 to present.  
PERIOD OF RECORD - Water year 2017 to current year. 
GAGE - Electronic data logger and pressure sensor.
REMARKS - Pumping from Russian River and irrigation wells may impact water level in the well.  Also, the well is located approximately 150 ft. from the Russian River and drilled in unconsolidated formations.  River stage influences the water level in the well.
PERIOD OF DAILY RECORD - October 2017 to current year. 
EXTREMES FOR PERIOD OF RECORD - Highest daily maximum water level recorded, 163.61 ft NAVD 88, February 10, 2017; lowest daily minimum water level recorded, 147.92 ft NAVD 88, October 10, 2021.
WATER-QUALITY RECORDS
WELL CHARACTERISTICS - Depth 42.5 ft. Upper casing diameter 2 in; top of first opening 33.5 ft, bottom of last opening 43.5 ft.  
DATUM - Land-surface datum is 169.15 ft above North American Vertical Datum of 1988. Measuring point: Top of casing. From local datum survey of mp=28.386, 2.92 ft above land-surface datum, Sep. 23, 2016 to Jun. 9, 2017; Top of casing, 2.93 ft above land-surface datum, Jun. 8, 2017 to present.  
PERIOD OF RECORD - Water year 2017 to current year.  
PERIOD OF DAILY RECORD - October 2017 to current year. 
INSTRUMENTATION - Level sensor with thermistor. 
EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE: Maximum recorded, 17.6°C, many days in 2022; minimum recorded, 16.6°C, July 12, 2017.