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Jun
30

Groundwater data, maps and reports

The King County Groundwater Protection Program maintains data on groundwater quality and water levels. Use our search tools or browse our collection of maps and reports to get groundwater data.

Groundwater data search tools

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iMap search

Select and query groundwater information through a web-based interactive map (iMap). 

Note: you will need to turn off your browser's popup blocker.

Search with iMap

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Text search

Run a simple or Advanced search, filtering by groundwater area, watershed, city, or well sampling results.

Note: you will need to turn off your browser's popup blocker.

Search by text

Groundwater maps and reports

Groundwater maps

East King County maps

Issaquah Creek Valley maps

Redmond Bear Creek maps

Vashon-Maury Island maps

Groundwater management plans

East King County

Issaquah Creek Valley

Redmond-Bear Creek

South King County

Vashon-Maury Island

Groundwater reports

Related Topics

Science services

Environmental research, studies, and data to support protection of clean water and healthy habitat.

Watersheds, rivers, streams & lakes

Find water and land related resources and services by drainage area.

Groundwater management

Groundwater provides drinking water and habitat for people and wildlife in King County.
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