Wesmar Company Inc
1451 NW 46th, Seattle, WA 98107

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Ecology held a comment period (February 12 - March 13, 2021) to delist the Site from the Hazardous Sites List.  Ecology did receive comments during the comment period.  Ecology reviewed the comments and determined that the cleanup actions at the Site meets state cleanup standards. This Site is now delisted from the Hazardous Sites List.

The Site will have an environmental covenant filed with its property records. The covenant will require long-term monitoring of groundwater for arsenic.

A periodic review by Ecology will be conducted every five years to ensure compliance requirements are met with the Consent Decree.

Wesmar Company Inc
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Wesmar Company, Inc site (Former Wesmar Ballard Facility) is located at 1401/1451 Northwest 46th Street in Seattle, Washington. The property is located in a commercial/industrial area in the Ballard neighborhood of Seattle.

Block at Ballard II, LLC currently owns the property, which was occupied by Wesmar Company, Inc. and Color Tech. Inc. between 1979 and 2007. Wesmar was a chemical product manufacturer and distributor, and Color Tech was a metal coating service. The Pacific Coast Pipe Company operated at this site from approximately 1906 to 1917, and included use and storage of creosote (a wood preservative).

The property is now a multi-story mixed-use commercial/retail complex with street level parking and one floor of underground parking lot.

Model Toxics Control Act
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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 over a variable timeline. 

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

If you speak a non-English language, free language services are available.

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.

To report an environmental problem or concern, any time, day or night, dial 206-594-0000

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


Map showing site location as King County, WA SITE INFORMATION


View Electronic Documents

Cleanup Site Details Report

Facility Site ID: # 2194

Cleanup Site ID: 1325

Seattle, King County

Status: Cleanup Complete-Active O&M/Monitoring   Get definitions of Status terminology

John Guenther
Site Manager
(360) 225-4381

Nancy Lui
Public Involvement Coordinator
(425) 393-5679

Document Repositories:

Northwest Regional Office
15700 Dayton Ave N
Shoreline, 98133

Seattle Public Library - Ballard Branch
5614 22nd Ave NW
Seattle, 98107