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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
Biological Water-quality 2017-05-14 2017-05-14
Information Water-quality 1976-12-29 2017-05-14
Inorganics, Major, Metals Water-quality 1971-10-14 2017-05-14
Inorganics, Major, Non-metals Water-quality 1971-10-14 2017-05-14
Inorganics, Minor, Non-metals Water-quality 1971-10-14 2017-05-14
Inorganics, Minor, metals Water-quality 1971-10-14 2017-05-14
Microbiological Water-quality 1971-10-14 1977-03-15
Nutrient Water-quality 1971-10-14 2017-05-14
Organics, PCBs Water-quality 1972-01-19 1973-02-06
Organics, other Water-quality 1971-10-14 2017-05-14
Organics, pesticide Water-quality 1971-10-14 2017-05-14
Physical Daily Values, Unit Values, Water-quality 1971-10-01 2024-11-22
Radiochemistry Water-quality 2017-05-14 2017-05-14
Sediment Water-quality 1971-11-13 2017-05-14
Stable Isotopes Water-quality 2017-05-08 2017-05-08
n/a Peak Measurements 1971-12-22 2022-12-31
n/a Site Visits 1971-12-02 2024-10-28
n/a USGS Annual Water Data Reports Site 2005-01-01 2023-01-01
Water Data for the Nation inventory

Monitoring location 11181008 is associated with a Stream in Alameda County, California. Current conditions of Discharge, Gage height, and Stream water level elevation above NAVD 1988 are available. Water data back to 1971 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
11181008 n/a
Site name
CASTRO VALLEY C A HAYWARD CA n/a
Site type
Stream
ST
DMS latitude 374048 n/a
DMS longitude 1220446 n/a
Decimal latitude 37.6799311 n/a
Decimal longitude -122.0805186 n/a
Latitude-longitude method
Interpolated from MAP. M
Latitude-longitude accuracy
Accurate to + or - 5 sec. F
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
Alameda County 001
Country US n/a
Land net location description n/a
Name of location map HAYWARD, CA n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 105.15 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
5.51 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 NNNNNNNN 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 n/a

Operated in cooperation with:

logo for Alameda County Flood Control & Water Conservation District
Alameda County Flood Control & Water Conservation District
logo for USGS - Cooperative Matching Funds
USGS - Cooperative Matching Funds