Troy Laundry Seattle

The Troy Laundry cleanup site is in the South Lake Union neighborhood of Seattle, WA. Hazardous dry-cleaning solvents, heating oil, and gasoline leaked from underground storage tanks at the site, contaminating the soil and groundwater.

We held a comment period from March 23 to April 21, 2026, about multiple cleanup documents. We received one comment from the City of Seattle, which can be viewed below, along with the fact sheet about the comment period. We are responding to the comment and will post our response here when it is finished.

Fact sheets: English | 中文

Read Comments

The documents that went out for comment can be viewed below:

• Remedial Investigation and Feasibility Study (RI/FS): describes previous and remaining cleanup work, evaluates cleanup options, and recommends a preferred cleanup option.
• Cleanup Action Plan (CAP): describes Ecology’s selected cleanup option based on the information in the RI/FS.
• Consent Decree (legal agreement): requires the property owner to monitor groundwater as described in the CAP and maintain existing site use controls.

The Troy Laundry Seattle cleanup site is located at 399 Fairview Ave N and 300 Boren Ave N in Seattle, WA. It operated as an industrial laundry and dry-cleaning facility from 1926 until 1985. The Seattle Times Company purchased the property in 1985 and sold it in 2011 to Touchstone SLU LLC (Touchstone). In 2013, Touchstone agreed to perform an early partial cleanup, detailed in the section below. Later in 2013, Touchstone and another company merged to become TB TS/RELP LLC. This company is responsible for implementing the Cleanup Action Plan. In 2019, the building was sold to Ponte Gadea Seattle, LLC (Ponte Gadea), under a Perspective Purchaser Consent Decree. 

Contamination

Hazardous dry-cleaning solvents, heating oil, and gasoline products were used and stored in 19 above- and under-ground tanks located on the Property. Dry cleaning solvents and petroleum were released on the Property, resulting in soil and groundwater contamination. Contaminants found included:

• Tetrachloroethene (PCE) and its degradation compounds trichloroethene (TCE),
  cis-1,2-dichloroethene (DCE), and vinyl chloride (VC)
• Gasoline, diesel, and oil-range petroleum hydrocarbons

Interim Action

An interim action (early partial cleanup) was conducted between 2014 and 2017 alongside the redevelopment of the property. The following actions addressed soil and groundwater contamination both on- and off-property:

• The Seattle Times Company installed and operated a soil vapor extraction (SVE) system at the site in 2011.
• Through 2014-2015, over 96,000 tons of contaminated soil were removed from the property.      
• A network of groundwater injection wells was installed during redevelopment of the site after 2015. These wells were designed to treat contamination in the groundwater.  
• During redevelopment of the site, a 5-inch-thick concrete slab was installed beneath the five levels of underground parking, along with an HVAC system that protects the new buildings from vapor intrusion. Vapor intrusion occurs when chemical vapors from contaminated soil or groundwater move through the ground and enter buildings.
• Indoor air sampling was conducted in 2018 and 2019 to check if vapor intrusion could still be present on the site after redevelopment. Results showed no contamination above state cleanup levels.

The Model Toxics Control Act (MTCA) is Washington’s environmental cleanup law. It provides requirements for contaminated site cleanup and sets standards that protect human health and the environment. Ecology enacts the MTCA and oversees cleanups. The MTCA site cleanup process is completed in steps (see graphic below) over a variable timeline.

Join our email list to receive updates about the South Lake Union cleanup sites, including Troy Laundry Seattle. You may also email the Public Involvement Coordinator (listed under Contacts) to be added to the list. Unsubscribe at any time.

Subscribe Here!

You can also click the button on the top right of this page that says 'Subscribe to this site' to get weekly site updates, delivered every Friday.

Ecology will consider all the comments received during the most recent public comment period and may make changes to the documents. If the documents require significant changes, we will hold another public comment period. If no significant changes are made, Ecology will finalize the documents. The next steps include designing the cleanup and then cleaning up the site.