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Water and land services

Groundwater Management in King County, Washington

Find comprehensive services, data and information related to groundwater in King County, Washington.

To offer a suggestion or report an error on the King County groundwater management website, please contact Fred Bentler, webmaster.

Groundwater Management in King County, Washington State

Groundwater management in King County, Washington

GroundwaterKing County seeks to protect the health and well-being of its residents who rely on groundwater for drinking, and to ensure enough groundwater replenishes streams, lakes and wetlands to support fish and wildlife in the future. This site is provided by the King County Groundwater Protection Program. For information about program goals, responsibilities, funding and staff, please read about King County Groundwater Protection Program.

Funny Groundwater Animation for Kids and AdultsThe Groundwater Story animation - see groundhogs sing and dance

Groundwater data
Look up well depths, water quality data, water level measurements and other groundwater data by looking up place names or attributes, or by navigating an interactive map.

Sustainability Indicators
Learn about measures assessing the status of Vashon-Maury Island water resources.

Groundwater maps and reports
Read original reports and maps describing groundwater characteristics and conditions in King County.

Groundwater management areas
Learn about groundwater related issues, policies and activities in one of five areas in King County including East King County, Issaquah Valley, Redmond-Bear Creek, South King County, and Vashon-Maury Island groundwater management areas.

Groundwater committees
Find out more about the citizen committees that advise King County on policies and plans realated to groundwater.

Drinking water - Public Health, Seattle and King County
Find King County Public Health servirces, resources and regulations related to wells and other small drinking water systems that rely on groundwater.

Environmental indicators for groundwater
Learn about the condition of King County’s groundwater, key factors influencing its condition, King County actions, and how you can help.

Related groundwater resources
Browse a list of links to valuable information sources related to groundwater in our region.

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.

Related information

Related agencies

News and announcements

DNRP Performance Measures, King County, WashingtonEnvironmental Indicators for Groundwater in King County, WA

Assessing our Liquid Assets
Report Card to the Community

Protecting our Liquid Assets
Vashon Island water resources mailer

July 28, 2011
External article, Ecology News
Abandoned Wells posed a Hazard

July 27, 2010
External article, Sightline Daily
The Real Worth: Puget Sound

July 8, 2008
External article, Seattle Times
KingCo case may determine state land use regulations

July 7, 2008
External article, Seattle P-I
Court nixes county's land use limits
Half of property would have had to stay natural

King County wins "Best of Web" award
Citation is one of five for online excellence, including an education award for our Groundwater Story animation.

Why is groundwater important?

An estimated 30 percent of King County's population relies on groundwater wells for drinking water. That's over half a million people!

Groundwater also feeds surface streams in the summer months, and provides water for salmon and other fish when there is little rain.

Care to join us?

Groundwater Protection Committee meetings are open to the public:

  • Vashon-Maury Island
  • Learn more