Ecology is proposing to remove the Borrelli Real Estate Investments cleanup site from the state’s Hazardous Sites List. The site is located at 4404 South 133rd Street, Tukwila. It was as a gas station/automotive service station from 1924 to the 1970s. Contaminated soil from leaking underground storage tanks was discovered in 2013. Gas dispensers were still in place at that time. In 2015, Ecology completed a Site hazardous Assessment and listed the site in the Hazardous Sites List. It was ranked “4” on a scale of 1 to 5 where “1” represents the highest risk and “5” is the lowest risk. This ranking estimates the potential threat to human health and the environment relative to other sites in Washington.
A site may be removed from the Hazardous Sites List only if the site is cleaned up. In some cases, long-term monitoring and periodic reviews may be required to ensure the cleanup is adequate to protect the public and the environment. Ecology will hold a public comment period for any site it proposes to remove from this list.
In 2013–2019, cleanup was conducted at the site. The service station building, underground storage tanks, gas dispensers, and contaminated soil were removed. Soil and ground water were sampled to confirm the cleanup was effective. Ecology has determined that the site cleanup actions meet state cleanup standards.
Ecology is proposing to remove the site from the:
• Hazardous Sites List
• Confirmed and Suspected Contaminated Sites List
• Leaking Underground Storage Tank List
Comment by mail
3190 160th Ave SE
Bellevue, WA 98008
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