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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
Physical Unit Values 2021-08-24 2022-02-14
Water Data for the Nation inventory

Monitoring location 380338121404901 is associated with a Stream in Contra Costa County, California. Water data back to 2021 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
380338121404901 n/a
Site name
SAN JOAQUIN R A CHANNEL MARKER 25 NR BETHEL ISLAND n/a
Site type
Stream
ST
DMS latitude 380337.54 n/a
DMS longitude 1214049.12 n/a
Decimal latitude 38.06042778 n/a
Decimal longitude -121.680311 n/a
Latitude-longitude method
Interpolated from MAP. M
Latitude-longitude accuracy
Accurate to + or - .5 sec (PLGR/PPS GPS). 5
Latitude-longitude datum
North American Datum of 1983 NAD83
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 JERSEY ISLAND, CA n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 0 feet n/a
Method altitude determined Interpolated from Digital Elevation Model N
Altitude accuracy 1.6 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
18040003
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried 20210824 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 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 GC21ZG8EX6DB n/a