WQP beta is currently experiencing an outage. We are working to resolve the outage and hope to have data available again soon. Thank you for your patience. In the meantime, data from WQX can still be accessed via WQP Legacy.

WQP Home >  Providers >  STORET >  KINGCOUNTY >  KINGCOUNTY-MAS_OSD0977

MAS_OSD0977 (KINGCOUNTY-MAS_OSD0977) site data in the Water Quality Portal

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

This storm sewer site, maintained by the King County (Washington) (identifier KINGCOUNTY), has the name "MAS_OSD0977" and has the identifier KINGCOUNTY-MAS_OSD0977. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)17110019.

This site is located in King County County, Washington at 47.3866137800 degrees latitude and -122.3101569000 degrees longitude using the datum NAD83. 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 "KINGCOUNTY-MAS_OSD0977" 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*
Microbiological 2024 - 2024
*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 KINGCOUNTY
OrganizationFormalName King County (Washington)
MonitoringLocationIdentifier KINGCOUNTY-MAS_OSD0977
MonitoringLocationName MAS_OSD0977
MonitoringLocationTypeName Storm Sewer
HUCEightDigitCode 17110019
LatitudeMeasure 47.3866137800
LongitudeMeasure -122.3101569000
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 53
CountyCode 033
ProviderName STORET