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Most King County offices will be closed on Monday, May 29, 2017, for Memorial Day.  
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The King County Groundwater Protection Program maintains geographic and tabular databases of groundwater quality and water level data. King County provides two methods to find and display information in its databases:

View and query an interactive groundwater map (opens new window)
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The iMap Search option opens an interactive groundwater map (iMap) which enables visitors to select and query groundwater information through web-based maps and geographically-based software.
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Search King County's groundwater database by keyword
The text search option provides a search form enabling visitors to look up groundwater information filtered by geographic label such as city, watershed, Groundwater Management Area, or by attribute such as well log availability.

This page is produced by the King County Groundwater Protection Program. To learn more about this group and its responsibilities, please read about the Groundwater Protection Program.