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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 legacy user interface will continue to function for several weeks. However, this user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  STORET >  CEDEN >  CEDEN-LSB109S

Lower South Bay (LSB109S) (CEDEN-LSB109S) site data in the Water Quality Portal

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

This other-surface water site, maintained by the California State Water Resources Control Board (identifier CEDEN), has the name "Lower South Bay (LSB109S)" and has the identifier CEDEN-LSB109S. 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 37.4851000000 degrees latitude and -122.1050000000 degrees longitude using the datum WGS84. 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 "CEDEN-LSB109S" 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 2010 - 2010
Nutrient 2010 - 2010
Physical 2010 - 2010
*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 CEDEN
OrganizationFormalName California State Water Resources Control Board
MonitoringLocationIdentifier CEDEN-LSB109S
MonitoringLocationName Lower South Bay (LSB109S)
MonitoringLocationTypeName Other-Surface Water
HUCEightDigitCode 18050004
LatitudeMeasure 37.4851000000
LongitudeMeasure -122.1050000000
HorizontalCollectionMethodName Unknown
HorizontalCoordinateReferenceSystemDatumName WGS84
CountryCode US
StateCode 06
CountyCode 081
ProviderName STORET