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 32°53'05.77",   Longitude 114°28'05.20"   NAD83

Imperial County, California, Hydrologic Unit 15030104

Drainage area: 188,500 square miles

Contributing drainage area: 184,500 square miles,

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2016-12-27	2026-01-20
Daily Data
Temperature, water, degrees Celsius	1973-10-16	2026-01-17	22056
Discharge, cubic feet per second	1976-10-01	2026-01-19	18008
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1971-10-01	2026-01-17	28844
Dissolved oxygen, water, unfiltered, milligrams per liter	2023-08-09	2026-01-17	2347
pH, water, unfiltered, field, standard units	2023-08-08	2026-01-20	3465
Dissolved solids, water, filtered, sum of constituents, milligrams per liter	2017-01-01	2026-01-17	3267
Daily Statistics
Temperature, water, degrees Celsius	1973-10-16	2025-09-07	7470
Discharge, cubic feet per second	1976-10-01	2025-11-29	17957
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1971-10-01	2025-11-13	10899
Dissolved oxygen, water, unfiltered, milligrams per liter	2023-08-09	2025-09-25	717
pH, water, unfiltered, field, standard units	2023-08-08	2025-11-13	807
Dissolved solids, water, filtered, sum of constituents, milligrams per liter	2017-01-01	2024-12-10	2868
Monthly Statistics
Temperature, water, degrees Celsius	1973-10	2025-09
Discharge, cubic feet per second	1976-10	2025-11
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1971-10	2025-11
Dissolved oxygen, water, unfiltered, milligrams per liter	2023-08	2025-09
pH, water, unfiltered, field, standard units	2023-08	2025-11
Dissolved solids, water, filtered, sum of constituents, milligrams per liter	2017-01	2024-12
Annual Statistics
Temperature, water, degrees Celsius	1974	2025
Discharge, cubic feet per second	1977	2026
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1972	2026
Dissolved oxygen, water, unfiltered, milligrams per liter	2023	2025
pH, water, unfiltered, field, standard units	2023	2026
Dissolved solids, water, filtered, sum of constituents, milligrams per liter	2017	2025
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1964-11-05	2024-02-13	1241
Water-Year Summary	2006	2025	19
Revisions	Loading...

OPERATION:

Record for this site is maintained by the USGS Arizona Water Science Center

Email questions about this site to Arizona Water Science Center Water-Data Inquiries