Facility Site ID: 56652786 Cleanup Site ID: 567

Public Comment Period July 18, 2022-August 16, 2022

2022年08月03日 星期三 6:30-7:30

Información en español
Reunión pública en línea
Miércoles, 3 de Agosto del 2022 6:30-7:30 
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Hứ tư, Tháng 8, 3 2022 6:30-7:30
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Miyerkules, Agosto 3, 2022 6:30-7:30
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The Department of Ecology (Ecology) is overseeing a cleanup of the Boathouse Inc Renton Skyway Site in the Skyway neighborhood, being done by GardnerGlobal, Inc (GG). Ecology is providing funding for this cleanup through their new Affordable Housing Cleanup Grant Program. This program ensures sites are “cleaned up properly while promoting community engagement and ensuring affordable housing in the process.”

We would like your comments on the following documents:

Prospective Purchaser Consent Decree (PPCD) and Exhibits: legal agreement that directs the purchaser to implement cleanup at the site, and provides the purchaser a settlement of liability.

Public Participation Plan: document explains how people can participate in the cleanup process.
Comment here!

Online Public Meeting
In consideration of public health and safety, Ecology will hold an online public meeting to provide more information and answer questions.  Register for the meeting by clicking the link below:

Wednesday, August 3, 2022
6:30 – 7:00 p.m. presentation
7:00 – 7:30 p.m. question and answer session

State Cleanup Process

The Model Toxics Control Act (MTCA; Chapter 70.105D RCW) 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 to the left) over a variable timeline.

Site Background

The Boathouse Inc. Renton Skyway site (Site) is a former retail store and dry cleaning facility (Ken's Skyway Cleaners) located in Seattle, King County, Washington. A dry cleaning facility (Ken’s Skyway Cleaners) was in operation at the Site from 1982 until 2002. Operations at this dry cleaning facility resulted in the release of hazardous chemicals to soil and groundwater.  The 0.48-acre property is located approximately 5,700 feet from the Duwamish River, and zoned for community business (CBSO) use.

Municipal groundwater wells for the Skyway Water District (approximately 9,890 users) and the City of Renton (approximately 62,100 users) are located within 2 miles of the Site. Solvent-impacted groundwater has been confirmed at the Site, but has not been confirmed to affect municipal groundwater supplies.

What Has Been Done At The Site?


June 1999, the Site was reported to Washington State Department of Ecology due to a release. In July 1999, an investigation was completed.


The Site joined the Voluntary Cleanup Program (VCP) in 2002 and placed on the list with ID number NW0926, and was terminated from the program in 2007 due to inactivity. 

In August 23, 2013, a groundwater monitoring report showed that PCE (a chemical primary used for dry-cleaning fabrics and degreasing metals) and TCE were found in groundwater above state cleanup levels.

Ecology conducted a Site Hazardous Assessment and added the Site to the H
azardous Sites List with a ranking of "3" moderate risk.



In January 17, 2019, a Limited Phase II screening was conducted.  PCE, TCE and Vinyl Chloride (VC) were found above state cleanup level in groundwater. This report also documents the potential of the groundwater plume migrating to the south and under the adjacent southern property. 



Ecology is beginning negations with the liable persons to clean up the Site.


Site Documents

View electronic documents in the right-hand column. Click for instructions on how to submit a public records request.

Ecology is committed to providing people with disabilities access to information and services by meeting or exceeding the requirements of the Americans with Disabilities Act (ADA), Section 504 and 508 of the Rehabilitation Act, and Washington State Policy #188. To request an ADA accommodation, contact Ecology by phone at 360-407-6831 or email at ecyadacoordinator@ecy.wa.gov. For Washington Relay Service or TTY call 711 or 877-833-6341 .  Visit Ecology’s website for more information.

Check out
What’s In My Neighborhood to find out about other cleanups in your area.

Legal 3
Document Title Document Date Document Type
Prospective Purchaser Consent Decree Exhibits - Public Comment Draft 7/13/2022 Consent Decree
Prospective Purchaser Consent Decree - Public Comment Draft 7/13/2022 Consent Decree
Boathouse PLP FINAL Det Ltr 10-29-2020 10/29/2020 Final Potentially Liable Person Status Letter
Public Information 8
Document Title Document Date Document Type
Boathouse Inc. Renton Skyway Public Participation Plan - Draft 7/13/2022 Public Participation Plan
Boathouse Inc. Renton Skyway Site Fact Sheet - English 7/11/2022 Fact Sheet\Public Notices
Boathouse Inc. Renton Skyway Site Fact Sheet - Chinese 7/11/2022 Fact Sheet\Public Notices
Boathouse Inc. Renton Skyway Site Fact Sheet - Vietnamese 7/11/2022 Fact Sheet\Public Notices
Boathouse Inc. Renton Skyway Site Fact Sheet - Tagalog 7/11/2022 Fact Sheet\Public Notices
Boathouse Inc. Renton Skyway Site Fact Sheet - Somali 7/11/2022 Fact Sheet\Public Notices
Boathouse Inc. Renton Skyway Site Fact Sheet - Spanish 7/11/2022 Fact Sheet\Public Notices
Boathouse Inc. Renton Skyway Site Fact Sheet - Amharic 7/11/2022 Fact Sheet\Public Notices
Technical Reports 7
Document Title Document Date Document Type
LD II LLC response to Ecology preliminary PLP letter September 9, 2020 9/9/2020 Site Specific Administrative Document - other (Administrative correspondence)
Boathouse Inc. preliminary PLP letter 8/12/2020 Site Specific Administrative Document - other (Administrative correspondence)
12600 Renton Ave S - Limited Phase II 1/17/2019 Site Specific Technical Document - other
Boathouse Inc. Renton Skyway - Rank Notification Letter 2/4/2015 Site Specific Administrative Document - other (Administrative correspondence)
Boathouse Inc. Renton Skyway - Site Hazard Assessment 1/28/2015 Site Hazard Assessment Report
Boathouse Inc. Renton Skyway - SHA Notification Letter 3/4/2014 Site Specific Administrative Document - other (Administrative correspondence)
Groundwater Monitoring Report, The Riley Group, August 23, 2013 8/23/2013 Groundwater Monitoring Report
There may be more documents related to this site. To obtain documents not available electronically, you will need to make a public records request.

Places to see print documents

  • Northwest Regional Office
    15700 Dayton Ave N
    Shoreline, 98133
    Please schedule an appointment to view print documents at this location.
  • King County Skyway Public Library
    12601 76th Ave S
    Seattle, 98178
    This location may only have print documents available during open comment periods.

Contaminants 3

Contaminant Type
Surface Water
Halogenated Organics - Halogenated Organics C C
Metals - Metals Priority Pollutants C
Other Contaminant - Conventional Contaminants, Organic C C
Confirmed Above Cleanup Levels
Below Cleanup Levels
This contaminant list was based on our best information at the time it was entered. It may not reflect current conditions at the site.