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...

This page will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline.

DESCRIPTION:

Latitude 37°18'56",   Longitude 121°07'27"   NAD27

Stanislaus County, California, Hydrologic Unit 18040002

Drainage area: 134 square miles

Datum of gage: 198.74 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1988-10-01	2026-01-21
Daily Data
Temperature, water, degrees Celsius	2019-01-16	2022-02-15	424
Discharge, cubic feet per second	1932-04-01	2026-01-20	34263
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2020-01-18	2022-02-15	752
Daily Statistics
Temperature, water, degrees Celsius	2019-01-16	2022-02-15	140
Discharge, cubic feet per second	1932-04-01	2025-04-14	33982
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2020-01-18	2022-02-15	250
Monthly Statistics
Temperature, water, degrees Celsius	2019-01	2022-02
Discharge, cubic feet per second	1932-04	2025-04
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2020-01	2022-02
Annual Statistics
Temperature, water, degrees Celsius	2019	2022
Discharge, cubic feet per second	1932	2025
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2020	2022
Peak streamflow	1932-02-08	2024-02-04	93
Field measurements	1932-01-02	2026-01-05	631
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1993-02-17	1995-01-10	6
Water-Year Summary	2005	2024	20
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