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SeaTac International Airport

SITE DESCRIPTION

Ecology and the Port of Seattle, operator of the airport, entered into a legal agreement called an Agreed Order on May 25, 1999.  In response to the order, the Port completed a comprehensive computer modeling study of the groundwater throughout the airport area.  The purpose of the study was to determine if contamination associated with airport operations affected public drinking water supply wells or surface water bodies outside airport property.   Results showed that contamination associated with airport operations will not migrate off the airport property or impact the public drinking water supply wells or surface water bodies outside airport property.

SITE DOCUMENTS

• Fact Sheet
• Draft Groundwater Study Report
• Public Announcement:
• Highline Times Newspaper
• Seattle Times and PI Newspaper
• Final Agreed Order May 1999 (includes Public Participation Plan)
• Responsiveness Summary - July 15, 2008

Related Information

• SeaTac International Airport Document Archive
• Watershed Information for WRIA 09

Additional Resources

• Acronyms used by the Toxic Cleanup Program
• Cleanup Process: Major Steps & Definitions
• Data Submittal Requirements for All Cleanup Sites
• Facility/Site Atlas
• Toxics Cleanup publications