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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Visit the Louisiana page for an example. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. You can update the state name in the URL to visit your State Page or read our announcement on the Water Data for the Nation blog to find links to all the state and territory pages.
Important Legacy real-time page

USGS Parameter Group Data Types Start Date End Date
Physical Daily Values, Unit Values 2016-02-25 2024-11-26
n/a USGS Annual Water Data Reports Site 2016-01-01 2023-01-01
Water Data for the Nation inventory

Monitoring location 11173490 is associated with a Lake, Reservoir, Impoundment in Alameda County, California. Current conditions of Lake or reservoir water surface elevation above NAVD 1988 and Lake or reservoir water surface elevation above NGVD 1929 are available. Water data back to 2016 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
11173490 n/a
Site name
CALAVERAS RESERVOIR NR SUNOL CA n/a
Site type
Lake, Reservoir, Impoundment
LK
DMS latitude 372925.1 n/a
DMS longitude 1214943.6 n/a
Decimal latitude 37.49030556 n/a
Decimal longitude -121.8287778 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 1983 NAD83
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
California 06
State
California 06
County
Alameda County 001
Country US n/a
Land net location description NENES23 T05S R01E n/a
Name of location map CALAVERAS RESERVOIR n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 2.81 feet n/a
Method altitude determined GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System X
Altitude accuracy .16 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
18050004
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site NNNNYNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried n/a
Drainage area
98.6 square miles n/a
Contributing drainage area n/a
Time Zone abbreviation PST n/a
Site honors Daylight Saving Time
Y n/a
Data reliability
n/a
Data-other GW files Y 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 GC16ZG-00104 n/a

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San Francisco Public Utilities Commission