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Comment Period

Air Spares Inc., Tacoma

Cleanup site - Periodic review

March 28, 2019 - April 28, 2019

Ecology invites the public to review and comment on a draft periodic review report for the Air Spares Inc site. The report shows that cleanup work remains effective in protecting human health and the environment. This is the site’s second review. The first review was in 2014.


The building on the former Air Spares Inc. property was built in the early 1970s. A laboratory and parking lot currently occupy the site. Three underground storage tanks at the site were removed in 1998. Petroleum hydrocarbon contamination was found in the soil around one of the tanks, a 300 gallon tank for storage of waste oil. About 176 cubic yards of contaminated soil were removed and replaced with clean material. In 2006, additional study showed that no groundwater was encountered during sampling. Petroleum contaminated soil above state cleanup levels remained under the corner of the building, but could not be excavated without threatening the structural integrity of the building.

In 2008, an environmental covenant was recorded for the site. The covenant requires the building and pavement in the parking lot covering the contaminated area remain in satisfactory condition and continue to eliminate exposure to the contamination.

Review process

Ecology conducts a Periodic Review of a site at least every five years after the initiation of a cleanup action when institutional controls are part of a cleanup, as required by the Model Toxics Control Act (MTCA). The purposes of the review are to evaluate site conditions and to ensure continued protection of human health and the environment.

Ecology will review comments received during the comment period and may modify the review if new information is submitted during the comment period. The Periodic Review will become final if no significant changes are made.
Ecology will hold a public meeting if 10 people request one.

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Comment online

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Comment by mail

Panjini Balaraju
WA Department of Ecology
PO Box 47775
Olympia, WA 98504-7775
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Panjini Balaraju
periodic review coordinator

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