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 37°40'34",   Longitude 121°15'55"   NAD27

San Joaquin County, California, Hydrologic Unit 18040003

Drainage area: 13,539 square miles

Datum of gage: 25 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Daily Data
Temperature, water, degrees Celsius	1961-10-27	2023-05-10	43091
Discharge, cubic feet per second	1923-10-01	2024-11-26	35120
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1985-10-10	2005-09-06	12896
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) -- TS032: FTS DTS-12	2014-09-30	2016-08-18	1356
Suspended sediment concentration, milligrams per liter	1956-11-01	2022-09-30	23539
Suspended sediment discharge, short tons per day	1956-11-01	2022-09-30	24072
Daily Statistics
Temperature, water, degrees Celsius	1972-12-04	2023-05-10	7054
Discharge, cubic feet per second	1923-10-01	2024-03-06	34856
Suspended sediment concentration, milligrams per liter	1956-11-01	2022-09-29	23538
Suspended sediment discharge, short tons per day	1956-11-01	2022-09-29	24071
Monthly Statistics
Temperature, water, degrees Celsius	1972-12	2023-05
Discharge, cubic feet per second	1923-10	2024-03
Suspended sediment concentration, milligrams per liter	1956-11	2022-09
Suspended sediment discharge, short tons per day	1956-11	2022-09
Annual Statistics
Temperature, water, degrees Celsius	1973	2023
Discharge, cubic feet per second	1924	2024
Suspended sediment concentration, milligrams per liter	1957	2022
Suspended sediment discharge, short tons per day	1957	2022
Peak streamflow	1923-10-15	2023-03-19	95
Field measurements	1988-09-19	2024-11-14	464
Field/Lab water-quality samples	1950-12-02	2024-02-07	10183
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