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DESCRIPTION:

Latitude 39°14'48",   Longitude 123°07'45"   NAD27

Mendocino County, California, Hydrologic Unit 18010110

Drainage area: 92.2 square miles

Datum of gage: 790.74 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1987-10-01	2026-01-22
Daily Data
Temperature, water, degrees Celsius	2019-10-31	2026-01-22	9097
Temperature, water, degrees Celsius	1965-08-17	1979-02-12	7662
Temperature, water, degrees Celsius	1964-03-01	1977-09-27	172
Discharge, cubic feet per second	1941-10-01	2026-01-21	30794
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2019-11-01	2026-01-21	8891
Dissolved oxygen, water, unfiltered, milligrams per liter	2019-10-31	2026-01-22	8985
pH, water, unfiltered, field, standard units	2019-10-31	2026-01-22	6782
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2019-10-31	2026-01-22	6401
Suspended sediment concentration, milligrams per liter	1964-03-01	1968-09-29	992
Suspended sediment discharge, short tons per day	1964-03-01	1968-09-29	1156
Daily Statistics
Temperature, water, degrees Celsius	2019-11-01	2025-11-17	2209
Discharge, cubic feet per second	1941-10-01	2025-11-17	30729
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2019-11-01	2025-11-17	2149
Dissolved oxygen, water, unfiltered, milligrams per liter	2019-11-01	2025-11-17	2178
Suspended sediment concentration, milligrams per liter	1964-03-01	1968-09-29	992
Suspended sediment discharge, short tons per day	1964-03-01	1968-09-29	1156
Monthly Statistics
Temperature, water, degrees Celsius	2019-11	2025-11
Discharge, cubic feet per second	1941-10	2025-11
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2019-11	2025-11
Dissolved oxygen, water, unfiltered, milligrams per liter	2019-11	2025-11
Suspended sediment concentration, milligrams per liter	1964-03	1968-09
Suspended sediment discharge, short tons per day	1964-03	1968-09
Annual Statistics
Temperature, water, degrees Celsius	2020	2026
Discharge, cubic feet per second	1942	2026
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2020	2026
Dissolved oxygen, water, unfiltered, milligrams per liter	2020	2026
Suspended sediment concentration, milligrams per liter	1964	1968
Suspended sediment discharge, short tons per day	1964	1968
Peak streamflow	1942-02-05	2025-02-04	84
Field measurements	1941-10-19	2025-12-21	866
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1951-10-09	2018-06-14	457
Water-Year Summary	2005	2025	21
Revisions	Loading...

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