TagMTCA(16)
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2026-04-24Request for updated information to complete hazard assessments of contaminated sites located at SeaTac Airport
The Washington State Department of Ecology sent a letter to Megan King at Port of Seattle requesting updated information about contaminated sites at SeaTac Airport by August 31, 2026. The letter explains the Site Hazard Assessment and Ranking Process (SHARP) used to evaluate contamination in soil, groundwater, surface water, sediment, and indoor air. Six specific -
2026-04-24
Request for updated information to complete hazard assessments of contaminated sites located at SeaTac Airport
The Washington State Department of Ecology sent a letter to Megan King at Port of Seattle requesting updated information about contaminated sites at SeaTac Airport by August 31, 2026. The letter explains the Site Hazard Assessment and Ranking Process (SHARP) used to evaluate contamination in soil, groundwater, surface water, sediment, and indoor air. Six specific -
2025-04-23Washington’s Model Toxics Control Act is a success worth defending | Opinion
By Christina Wong, Eric ffitch and Jessica Spiegel April 23, 2025 11:29 AM In 1988, Washington voters took a historic step by passing Initiative 97, a measure designed to address pollution in their communities. Its approach was simple: tax the wholesale value of hazardous substances and use the revenue to fund cleanup projects in the -
2024-08-15Tub Lake / Sunset Park site hazard assessment report
The Tub Lake/Sunset Park site in SeaTac, located one mile north of Seattle-Tacoma International Airport, was contaminated by decades of illegal dumping of waste oil and bilge oil from ships between 1941 and 1945, as well as leaking underground storage tanks at a King County road maintenance facility. Environmental sampling conducted in 1990 detected petroleum hydrocarbons, benzene, and other chemicals exceeding cleanup standards in soil, sediment, and water, with contamination estimated to cover 2-3 acres up to 12 feet deep beneath nearby playing fields. The Port of Seattle, which owns the southern wetlands portion of the site including Tub Lake, fenced the area in the 1970s after demolishing residences in the airport's landing pathway, though public access and ongoing contamination remained concerns at the time of the assessment. -
2022-09-12Conditions accepted and appealed summary table
This document lists 16 permit conditions related to environmental protections at what appears to be a Port development project, showing which conditions were accepted and which were appealed. Conditions covering stormwater management, wetland mitigation, fill criteria, and water quality monitoring were contested, with 8 of the 16 conditions formally appealed. Accepted conditions include stormwater sampling, wetland hydroperiod matching, and long-term contamination monitoring requirements. -
Lora Lake Apartments
15001 Des Moines Memorial Dr Burien, King County Lora Lake Apartments Cleanup Update – February 2022 Facility Site ID: 1880040 Cleanup Site ID: 2008 Cleanup completed in January 2020. Ecology finalized the Lora Lake Apartments Site Construction As-Built Report in January 2021. The cleanup work was conducted over two construction seasons: April to December 2017, -
2017-08-24Talking Toxics | Part 1: Funding in Crisis
Educating Voters Environmental Priorities Coalition Lobby & Advocacy A series on protecting all communities from dangerous pollution. For 50 years, Washington Environmental Council has set our sights on a cleaner, brighter future and charted a path to get there. In 1988, WEC campaigned to pass Initiative 97 (commonly called the Model Toxics Control Act or -
2015-07-07Execution of a consent decree for remediation of the Lora Lake apartments site
Port of Seattle memorandum requesting Commission authorization to execute a Model Toxics Control Act (MTCA) Consent Decree with Washington State Department of Ecology for environmental remediation of the Lora Lake Apartments Site contaminated with dioxin. The project includes design work and construction documents with an estimated total cost of $19.5 million. -
2015-07-07Execution of a consent decree for remediation of the lora lake apartments site
Port of Seattle memorandum requesting Commission authorization to execute a Model Toxics Control Act (MTCA) Consent Decree with Washington State Department of Ecology for environmental remediation of the Lora Lake Apartments Site contaminated with dioxin. The project includes design work and construction documents with an estimated total cost of $19.5 million. -
2013-01-01Model Toxics Control Act Regulation and Statute
A compilation document containing Washington State’s Model Toxics Control Act regulation (Chapter 173-340 WAC), the Model Toxics Control Act statute (Chapter 70.105D RCW), and the Uniform Environmental Covenants Act (Chapter 64.70 RCW). Published by the Washington State Department of Ecology’s Toxics Cleanup Program as Publication No. 94-06, revised in 2013.