Facility Site ID: 2194 Cleanup Site ID: 1325


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.

Site Background

Wesmar Company Inc
Wesmar Company Inc
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

Model Toxics Control Act
Model Toxics Control Act

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. 

Site use restrictions called institutional controls are in effect

Institutional controls can be fences, signs, or restrictions on how the property is used. For instance, an institutional control may prohibit installing drinking water wells or disturbing a protective cap that isolates contamination. These restrictions keep the contamination contained and keep people from being exposed to the contamination. The controls are usually listed in environmental covenants recorded with the county.

Periodic reviews are required when institutional controls are required at a site. Ecology conducts reviews to make sure the controls remain effective and the cleanup still protects human health and the environment. We conduct periodic reviews about every five years.

Environmental Covenant

County Recording #: 20200618001338
County Recording Date: 6/18/2020


  • Ongoing Maintenance of Remedy

Restricted Media

  • Groundwater
  • Soil
Legal 5
Document Title Document Date Document Type
Environmental Covenant 6/18/2020 Environmental Covenant; Alternative Mechanism
Wesmar Company First Amended Consent Decree No 10-2-21304-0 SEA 10/20/2017 Consent Decree - Amendment
Wesmar Company Inc. Final Consent Decree 6/11/2010 Consent Decree
Wesmar Company Inc. Determination of Potentially Liable Person Status 3/17/2009 Final Potentially Liable Person Status Letter
Wesmar Company Inc.AO Remedial Action 12/12/2007 Agreed Order
Map 1
Document Title Document Date Document Type
Proposed Remedial Investigation Area Map 12/31/2000 Map
Public Information 8
State Environmental Policy Act 1
Document Title Document Date Document Type
Wesmar Company Inc. SEPA DNS 5/24/2010 SEPA Documents
Technical Reports 6
Document Title Document Date Document Type
Wesmar Final Cleanup Action Report 2/25/2020 Remedial Action/As-Built Report
Revised Cleanup Action Plan 10/20/2017 Cleanup Action Plan
Wesmar Company Inc. FINAL Remedial Investigation Report, Feasibility Study, and Proposed Cleanup Action 1/19/2010 Remedial Investigation / Feasibility Study
Wesmar Company Inc. Agreed Order and Public Participation Plan Available for Review 12/1/2008 Site Specific Administrative Document - other (Administrative correspondence)
Wesmar Company - Site Hazard Assessment 8/31/2008 Site Hazard Assessment Report
Wesmar Company Inc Site Hazard Assessment 8/1/2008 Site Hazard Assessment 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.
  • Seattle Public Library - Ballard Branch
    5614 22nd Ave NW
    Seattle, 98107
    This location may only have print documents available during open comment periods.

Contaminants 6

Contaminant Type
Surface Water
Halogenated Organics - Halogenated Organics RB RB
Metals - Metals - Other RB B
Non-Halogenated Organics - Petroleum Products-Unspecified B
Non-Halogenated Organics - Non-Halogenated Solvents RB
Non-Halogenated Organics - Polycyclic Aromatic Hydrocarbons RB RB
Metals - Arsenic RB RB
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.