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Mile 7.57 Seep A (CALWR_WQX-PKA00757) 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 Department Of Water Resources (identifier CALWR_WQX), has the name "Mile 7.57 Seep A" and has the identifier CALWR_WQX-PKA00757. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)18040003.

This site is located in Alameda County County, California at 37.7578948000 degrees latitude and -121.5801040000 degrees longitude using the datum NAD83. The horizontal location collection method was "GPS-Unspecified" and the accuracy is 1 ft.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "CALWR_WQX-PKA00757" 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.

Leaflet USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System, National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National Transportation Dataset; USGS Global Ecosystems; U.S. Census Bureau TIGER/Line data; USFS Road data; Natural Earth Data; U.S. Department of State HIU; NOAA National Centers for Environmental Information. Data refreshed February, 2025.

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, Metals 2014 - 2014
Inorganics, Major, Non-metals 2014 - 2014
Inorganics, Minor, Non-metals 2014 - 2014
Nutrient 2014 - 2014
Physical 2014 - 2014
*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 CALWR_WQX
OrganizationFormalName California Department Of Water Resources
MonitoringLocationIdentifier CALWR_WQX-PKA00757
MonitoringLocationName Mile 7.57 Seep A
MonitoringLocationTypeName Other-Surface Water
MonitoringLocationDescriptionText Mile 7.57 Seep A
HUCEightDigitCode 18040003
LatitudeMeasure 37.7578948000
LongitudeMeasure -121.5801040000
HorizontalAccuracyMeasure/MeasureValue 1
HorizontalAccuracyMeasure/MeasureUnitCode ft
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 06
CountyCode 001
ProviderName STORET