USGS Home
Contact USGS
Search USGS

National Water Information System: Web Interface

USGS Water Resources   

Data Category:
Home Current Conditions Site Information Mapper Surface Water Groundwater Water Quality Water Use Revisions Geographic Area:
United States Alabama Alaska American Samoa Arizona Arkansas British Columbia California Canton and Enderbury Islands Colorado Connecticut Delaware Dist. of Columbia Florida Georgia Guam Hawaii Idaho Illinois Indiana Iowa Johnston Atoll Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Midway Islands Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Northern Mariana Islands Ohio Oklahoma Oregon Pennsylvania Puerto Rico Rhode Island Ryukyu Islands, Southern South Carolina South Dakota Swan Islands Tennessee Texas Trust Territories, Pacific Is U.S.Misc Caribbean Islands U.S.Misc Pacific Islands Utah Vermont Virgin Islands Virginia Wake Island Washington West Virginia Wisconsin Wyoming

Page Loading - Please Wait...

DESCRIPTION:

Latitude 38°39'30",   Longitude 122°49'42"   NAD27

Sonoma County, California, Hydrologic Unit 18010110

Drainage area: 684 square miles

Datum of gage: 143.70 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2009-07-01	2024-11-29
Daily Data
Temperature, water, degrees Celsius	2009-07-22	2024-11-29	12814
Discharge, cubic feet per second	2009-07-01	2024-11-28	4965
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2009-07-22	2024-11-29	9190
Dissolved oxygen, water, unfiltered, milligrams per liter	2009-07-22	2024-11-29	8868
pH, water, unfiltered, field, standard units	2009-07-22	2024-11-29	8895
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2009-07-22	2017-10-31	3819
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2018-04-01	2024-11-29	4441
Daily Statistics
Temperature, water, degrees Celsius	2016-10-01	2024-05-06	2664
Discharge, cubic feet per second	2009-07-01	2023-11-28	4600
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2016-10-01	2023-11-02	1419
Dissolved oxygen, water, unfiltered, milligrams per liter	2016-10-01	2023-10-31	1463
Monthly Statistics
Temperature, water, degrees Celsius	2016-10	2024-05
Discharge, cubic feet per second	2009-07	2023-11
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2016-10	2023-11
Dissolved oxygen, water, unfiltered, milligrams per liter	2016-10	2023-10
Annual Statistics
Temperature, water, degrees Celsius	2017	2024
Discharge, cubic feet per second	2009	2024
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2017	2024
Dissolved oxygen, water, unfiltered, milligrams per liter	2017	2024
Peak streamflow	2009-07-25	2023-03-14	9
Field measurements	2009-06-23	2024-11-22	188
Field/Lab water-quality samples	2015-08-13	2016-10-28	5
Water-Year Summary	2009	2023	15
Revisions	Loading...

OPERATION:

Record for this site is maintained by the USGS California Water Science Center

Email questions about this site to California Water Science Center Water-Data Inquiries