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DESCRIPTION:

Latitude 38°52'46",   Longitude 123°03'09"   NAD27

Mendocino County, California, Hydrologic Unit 18010110

Drainage area: 503 square miles

Datum of gage: 374.64 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1989-10-01	2025-11-01
Daily Data
Temperature, water, degrees Celsius	1964-11-17	2025-10-31	10235
Discharge, cubic feet per second	1951-08-01	2025-12-21	27172
Dissolved oxygen, water, unfiltered, milligrams per liter	2009-07-21	2025-10-31	7467
Suspended sediment concentration, milligrams per liter	1964-04-01	1968-09-29	1117
Suspended sediment discharge, short tons per day	1964-04-01	1968-09-29	1550
Daily Statistics
Temperature, water, degrees Celsius	2016-10-01	2025-10-30	1399
Discharge, cubic feet per second	1951-08-01	2025-06-02	26970
Dissolved oxygen, water, unfiltered, milligrams per liter	2016-10-01	2025-10-30	1389
Suspended sediment concentration, milligrams per liter	1964-04-01	1968-09-29	1117
Suspended sediment discharge, short tons per day	1964-04-01	1968-09-29	1550
Monthly Statistics
Temperature, water, degrees Celsius	2016-10	2025-10
Discharge, cubic feet per second	1951-08	2025-06
Dissolved oxygen, water, unfiltered, milligrams per liter	2016-10	2025-10
Suspended sediment concentration, milligrams per liter	1964-04	1968-09
Suspended sediment discharge, short tons per day	1964-04	1968-09
Annual Statistics
Temperature, water, degrees Celsius	2017	2026
Discharge, cubic feet per second	1951	2025
Dissolved oxygen, water, unfiltered, milligrams per liter	2017	2026
Suspended sediment concentration, milligrams per liter	1964	1968
Suspended sediment discharge, short tons per day	1964	1968
Peak streamflow	1951-12-28	2024-02-05	73
Field measurements	1951-08-19	2025-12-21	798
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1965-11-15	2017-07-06	99
Water-Year Summary	2005	2025	21
Revisions	Loading...

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