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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. To learn more, read our announcement on the Water Data for the Nation blog.
Important Legacy real-time page

USGS Parameter Group Data Types Start Date End Date
Information Water-quality 2010-09-15 2023-07-06
Inorganics, Major, Non-metals Water-quality 2018-05-15 2018-10-19
Nutrient Water-quality 2018-05-15 2018-10-19
Physical Daily Values, Unit Values, Water-quality 1999-06-25 2024-11-21
Sediment Water-quality 2010-03-15 2023-07-06
n/a Site Visits 2001-07-17 2024-10-22
n/a USGS Annual Water Data Reports Site 2014-01-01 2021-01-01
Water Data for the Nation inventory

Monitoring location 11313315 is associated with a Stream in Contra Costa County, California. Current conditions of Discharge, Gage height, Mean water velocity for discharge computation, and more are available. Water data back to 1999 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
11313315 n/a
Site name
OLD RIVER NEAR BYRON CA n/a
Site type
Stream
ST
DMS latitude 375328 n/a
DMS longitude 1213409 n/a
Decimal latitude 37.89103627 n/a
Decimal longitude -121.5702283 n/a
Latitude-longitude method
Interpolated from MAP. M
Latitude-longitude accuracy
Accurate to + or - 1 sec. S
Latitude-longitude datum
North American Datum of 1927 NAD27
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
California 06
State
California 06
County
Contra Costa County 013
Country US n/a
Land net location description n/a
Name of location map WOODWARD ISLAND n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 0 feet n/a
Method altitude determined Level or other surveyed method. L
Altitude accuracy 0.1 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
18040003
Drainage basin
n/a
Topographic setting
Stream channel
C
Flags for instruments at site NNNNYNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried n/a
Drainage area
n/a
Contributing drainage area n/a
Time Zone abbreviation PST n/a
Site honors Daylight Saving Time
N n/a
Data reliability
n/a
Data-other GW files YNNNNNNN n/a
National aquifer n/a
Local aquifer n/a
Local aquifer type
n/a
Well depth n/a
Hole depth
n/a
Source of depth data n/a
Project number OL n/a