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DESCRIPTION:

Latitude 37°57'12",   Longitude 122°20'14"   NAD27

Contra Costa County, California, Hydrologic Unit 18050002

Drainage area: 7.79 square miles

Datum of gage: 65.56 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Daily Data
Temperature, water, degrees Celsius	1976-10-12	1980-09-24	433
Discharge, cubic feet per second	1975-10-01	1996-06-09	7558
Suspended sediment concentration, milligrams per liter	1977-10-01	1980-09-29	1095
Suspended sediment discharge, short tons per day	1977-10-01	1980-09-29	1095
Total sediment discharge, short tons per day	1976-10-01	1977-09-29	364
Total sediment concentration, milligrams per liter	1976-10-01	1977-09-29	364
Daily Statistics
Discharge, cubic feet per second	1975-10-01	1996-06-09	7558
Suspended sediment concentration, milligrams per liter	1977-10-01	1980-09-29	1095
Suspended sediment discharge, short tons per day	1977-10-01	1980-09-29	1095
Total sediment discharge, short tons per day	1976-10-01	1977-09-29	364
Total sediment concentration, milligrams per liter	1976-10-01	1977-09-29	364
Monthly Statistics
Discharge, cubic feet per second	1975-10	1996-06
Suspended sediment concentration, milligrams per liter	1977-10	1980-09
Suspended sediment discharge, short tons per day	1977-10	1980-09
Total sediment discharge, short tons per day	1976-10	1977-09
Total sediment concentration, milligrams per liter	1976-10	1977-09
Annual Statistics
Discharge, cubic feet per second	1976	1996
Suspended sediment concentration, milligrams per liter	1978	1980
Suspended sediment discharge, short tons per day	1978	1980
Total sediment discharge, short tons per day	1977	1977
Total sediment concentration, milligrams per liter	1977	1977
Peak streamflow	1976-02-29	1997-01-02	22
Field measurements	1975-11-05	1996-06-10	191
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1976-11-11	1980-09-08	65
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