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 38°30'41",   Longitude 122°27'17"   NAD27

Napa County, California, Hydrologic Unit 18050002

Drainage area: 78.8 square miles

Datum of gage: 191.33 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1987-10-02	2024-12-24
Daily Data
Temperature, water, degrees Celsius	1958-10-06	1979-01-31	11329
Discharge, cubic feet per second	1929-10-01	2024-12-23	30429
Gage height, feet	1995-07-01	2000-05-31	3529
Suspended sediment concentration, milligrams per liter	1960-11-01	1962-06-29	390
Suspended sediment discharge, short tons per day	1960-11-01	1962-06-30	515
Daily Statistics
Discharge, cubic feet per second	1929-10-01	2024-11-03	30379
Suspended sediment concentration, milligrams per liter	1960-11-01	1962-06-29	390
Suspended sediment discharge, short tons per day	1960-11-01	1962-06-30	515
Monthly Statistics
Discharge, cubic feet per second	1929-10	2024-11
Suspended sediment concentration, milligrams per liter	1960-11	1962-06
Suspended sediment discharge, short tons per day	1960-11	1962-06
Annual Statistics
Discharge, cubic feet per second	1930	2025
Suspended sediment concentration, milligrams per liter	1961	1962
Suspended sediment discharge, short tons per day	1961	1962
Peak streamflow	1929-12-15	2024-02-04	84
Field measurements	1929-12-11	2024-11-27	398
Field/Lab water-quality samples	1952-02-10	1979-05-02	184
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