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 39°01'36",   Longitude 123°07'46"   NAD27

Mendocino County, California, Hydrologic Unit 18010110

Drainage area: 362 square miles

Datum of gage: 497.61 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1987-10-01	2024-04-15
Daily Data
Temperature, water, degrees Celsius	1965-09-01	2024-04-15	28420
Discharge, cubic feet per second	1939-10-01	2024-04-14	30878
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2002-01-25	2024-04-15	20677
Dissolved oxygen, water, unfiltered, milligrams per liter	2002-01-25	2024-04-15	20197
pH, water, unfiltered, field, standard units	2002-01-25	2024-04-15	20625
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) -- (TS085: YSI Model 6026)	2002-01-25	2008-07-13	5487
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2008-07-19	2017-10-05	9128
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2018-02-07	2024-04-15	6429
Daily Statistics
Temperature, water, degrees Celsius	2016-10-01	2023-10-10	2539
Discharge, cubic feet per second	1939-10-01	2023-10-10	30691
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2016-10-01	2023-10-10	2498
Dissolved oxygen, water, unfiltered, milligrams per liter	2016-10-01	2023-10-10	2468
Monthly Statistics
Temperature, water, degrees Celsius	2016-10	2023-10
Discharge, cubic feet per second	1939-10	2023-10
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2016-10	2023-10
Dissolved oxygen, water, unfiltered, milligrams per liter	2016-10	2023-10
Annual Statistics
Temperature, water, degrees Celsius	2017	2024
Discharge, cubic feet per second	1940	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	1937-12	2021-10-24	84
Field measurements	1937-12-21	2024-04-08	1103
Field/Lab water-quality samples	1951-04-12	2017-11-01	228
Water-Year Summary	2005	2023	19
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