Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

New WQX 3.0 profiles are available at waterqualitydata.us/beta/. These profiles will contain recent USGS data added since March 11, 2024, which marks the beginning of limited accessibility for USGS data. Read more about the 3.0 profiles and associated changes here. This user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  STORET >  11NPSWRD_WQX >  11NPSWRD_WQX-GOGA_SFWD_SAR3

SAN ANDREAS RESERVOIR (11NPSWRD_WQX-GOGA_SFWD_SAR3) site data in the Water Quality Portal

Data Provider: STORET (Learn more about Water Quality Portal Data Providers)

This reservoir site, maintained by the National Park Service Water Resources Division (identifier 11NPSWRD_WQX), has the name "SAN ANDREAS RESERVOIR" and has the identifier 11NPSWRD_WQX-GOGA_SFWD_SAR3. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)18050004.

This site is located in San Mateo County County, California at 37.6018611000 degrees latitude and -122.4304722000 degrees longitude using the datum NAD27. No horizontal location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "11NPSWRD_WQX-GOGA_SFWD_SAR3" into the "Site ID" box under Site Parameters

What other monitoring locations are upstream or downstream from this one?

Upstream and downstream locations

This map shows all Water Quality Portal stations that are 10 miles upstream (dashed dark blue) and 10 miles downstream (solid light blue) of this monitoring location (indicated by the large blue circle). The upstream and downstream functionality is provided by the Network Linked Data Index.

When were data collected at this location?

Periods of record for data characteristic groups

For a more detailed breakdown of data, go to the Monitoring Report at the EPA How's My Waterway Application
Characteristic Group Date Range*
Inorganics, Major, Non-metals 1996 - 1998
Inorganics, Minor, Metals 1997 - 1998
Nutrient 1996 - 1998
Organics, Other 1996 - 1998
Physical 1996 - 1998
*Date ranges may contain gap years

What other information is available for this location?

Detailed Metadata

For the definitions of the metadata elements, please go to the Water Quality Portal user guide

Location Metadata Value
OrganizationIdentifier 11NPSWRD_WQX
OrganizationFormalName National Park Service Water Resources Division
MonitoringLocationIdentifier 11NPSWRD_WQX-GOGA_SFWD_SAR3
MonitoringLocationName SAN ANDREAS RESERVOIR
MonitoringLocationTypeName Reservoir
MonitoringLocationDescriptionText THE STATION IS LOCATED ON THE MONTARA MOUNTAIN CA 7.5 MINUTE SERIES (TOPOGRAPHIC) QUADRANGLE. THE STATION IS LOCATED AT SAN ANDREAS RESERVOIR AND IS WITHIN THE BOUNDARIES OF GOLDEN GATE NATIONAL RECREA TION AREA. DATA WERE COLLECTED BY THE CITY AND COUNTY OF SAN FRANCISCO; PUBLIC UTILITIES COMMISSION; WATER QUALITY BUREAU (SAN FRANCISCO WATER DISTRICT) AS PART OF THEIR REGULAR MONITORING PROGRAM OF DRINKING WATER RESERVOIRS. FOR INFORMATION ON GOLDEN GATE NATIONAL RECREATION AREA CONTACT THE CHIEF OF RESOURCES AT FORT MASON; BUILDING 201; SAN FRANCIS CO CA 941231308 (TEL. 4155614620). DATA WERE PROCESSED AND UPLOADED TO STORET BY ADRIANE PETERSEN; NATIONAL PARK SERVICE WATER RESOURCES DIVISION; 1201 OAK RIDGE DRIVE SUITE 250; FORT COLLINS CO 80525 (TEL. 9702253516).*** Legacy STORET Station Type: /RESERV/TYPA/AMBNT
HUCEightDigitCode 18050004
LatitudeMeasure 37.6018611000
LongitudeMeasure -122.4304722000
SourceMapScaleNumeric 0
HorizontalCollectionMethodName Unknown
HorizontalCoordinateReferenceSystemDatumName NAD27
CountryCode US
StateCode 06
CountyCode 081
ProviderName STORET