Facility Site ID: 1884322 Cleanup Site ID: 2146

A Puget Sound Initiative site - Reaching the goal of a healthy, sustainable Puget Sound.

Background

From the 1890s to the early 1980s, the Weyerhaeuser Mill A site was used primarily for sawmill and pulp mill operations. The site is located at 3500 Terminal Avenue at the Port of Everett’s South Terminal.  

A range of historical industrial activities were performed at this site, including pulp manufacturing, saw milling, ship building, shingle milling, and log handling. The facility produced approximately 300 tons of pulp per day while operating as a sulfite paper mill. Some of the waste materials from this production contributed to the contamination of the site. All pulping operations at the site ceased in 1980. The Port of Everett (the Port) purchased the property in 1983 and currently uses the site for container cargo handling. Samples collected from adjacent marine sediments were found to contain a large volume of wood waste, as well as contaminants including metals, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), phenols, and dioxins/furans. Upland contaminants include metals, PAHs, petroleum, and several semi-volatile organic compounds (SVOCs).

Site History

  • January-March 2010: The Port conducts the initial phase of an Independent Upland Source and Groundwater Investigation
  • August 2012: Ecology entered into an Agreed Order DE8979 with the potentially liable parties – the Port, Weyerhaeuser Company (Weyerhaeuser) and Washington Department of Natural Resources (DNR).
  • March 2016: A draft Agreed Order, a draft Interim Action and a draft Public Participation Plan are released for public review and comment. The Potentially Liable Parties to this Agreed Order are the Port and Weyerhaeuser.
  • August 2016: An interim cleanup action in a portion of the in-water area was completed to remove contaminated sediment and wood debris to increase navigational access to the terminal.
  • June 2024: Agreed Order DE22405 and the associated Interim Action were made final following the public comment period. This interim action will divert stormwater drainage in preparation for the cleanup action at the site. The Potentially Liable Person to this Agreed Order is the Port.

Additional information on the work accomplished to-date is provided below.
  
Independent Upland Source and Groundwater Investigation (January 2010)

In January 2010, the Port of Everett conducted the initial phase of an Independent Upland Source and Groundwater Investigation to evaluate potential contamination at the Site that may have resulted from historical uses of the property. This independent investigation was conducted in coordination with Ecology who provided technical assistance in the form of review and comment on the site investigation work plan. A report documenting the results of the upland investigation was provided to Ecology in March 2010.

Agreed Order DE8979 (August 2012)

This first agreed order for the site is a legal document between Ecology and the Potentially Liable Parties (PLP) – the Port, Weyerhaeuser and DNR. The 2012 agreed order outlines the agreement to provide remedial action at the site where there has been a release or threatened release of hazardous substances. Notice of this agreed order was provided in June 2012.

The 2012 Agreed Order DE8979 describes the studies that the Potentially Liable Person to agree to perform on the site and covers the following studies and documents:

  • Remedial Investigation and Feasibility Study (RI/FS) – Explains the work needed to identify and analyze contamination at the Site.
  • Draft Cleanup Action Plan – Uses the RI/FS to identify a preferred cleanup action and a schedule to remove and treat the contamination at the Site.

Agreed Order for an Interim Action DE13119 (March 2016)

This Agreed Order is a legal document between Ecology, the Port, and Weyerhaeuser for a proposed interim cleanup action in the in-water area (off-shore of Pacific Terminal). An Interim Action is a remedial action required to partially address cleanup of the site. Action took place during the 2016/2017 in-water work window as allowed by the Army Corps of Engineers permit for the project.

The Interim Action removed contaminated sediment and wood debris identified at the site and increase navigational access to Pacific Terminal. This work included dredging, transport and disposal of contaminated sediment and wood debris to an approved landfill facility. Dredged material suitable for open water disposal was placed on a disposal barge and transported to the open water disposal site. The action also included installing armor and habitat mix (rounded sand and gravel materials) along areas where a temporary side slope remains. Further details regarding the technical elements of the Interim Action can be found in Exhibit B (Interim Action Work Plan) of the proposed agreed order. An Interim Action report, documenting the cleanup actions taken, was written following the action and evaluated as a part of the final cleanup action for the site as identified in the 2012 agreed order.

Agreed Order DE22405 and Interim Action Plan (June 2024)

Agreed Order DE22405 requires the Port of Everett to perform an Interim Action to reconfigure and upgrade the stormwater collection and treatment system in the Upland area of the site. This Agreed Order is a legal document between Ecology and the Port. The draft Agreed Order and draft Interim Action Plan went out for public comment in April 2024. Ecology received two comments during that time. No changes were made to the draft documents following the comment period. The Agreed Order was made effective June 5, 2024. The response to comments is included in the documents on this site. The Port is planning to complete the Interim Action during 2024. 

Legal 9
Public Information 7
Document Title Document Date Document Type
Mill A Responsive Summary to Public Comments June 2024 6/21/2024 Responsiveness Summary
Weyerhaeuser Mill A Fact Sheet Comment Period April 5 2024 4/5/2024 Fact Sheet\Public Notices
Weyerhaeuser Mill A Responsiveness Summary to Public Comments June 2016 6/22/2016 Responsiveness Summary
Fact Sheet (Agreed Order DE 13119) - March 2016 2/23/2016 Fact Sheet\Public Notices
Public Participation Plan (Mill A) - March 2016 2/23/2016 Public Participation Plan
Fact Sheet (Agreed Order DE 8979) - May 2012 5/30/2012 Fact Sheet\Public Notices
Public Participation Plan (Mill A) - May 2012 5/30/2012 Public Participation Plan
Technical Reports 14
Document Title Document Date Document Type
Response to September 29, 2023 Weyerhaeuser Company Letter 11/13/2023 Site Specific Administrative Document - other (Administrative correspondence)
Work Plan Addendum No 6 for Additional Upland Area Soil and Groundwater Sample Collection and Analysis at the Weyerhaeuser Mill A Former Site 10/1/2019 Remedial Investigation Work Plan
Letter Summarizing Upland RI Data Report Discussions on March 27, 2019 4/1/2019 Site Specific Administrative Document - other (Administrative correspondence)
Ecology response letter to comments submitted by Weyerhaeuser on a draft Agreed Order for Interim Action at the Port of Everett's South Terminal Berth 1. 1/30/2019 Site Specific Administrative Document - other (Administrative correspondence)
Work Plan Addendum No. 4 for Additional Marine Area Sediment Sample Collection and Analysis at the Weyerhaeuser Mill A Former Site 9/5/2018 Remedial Investigation Work Plan
Work Plan Addendum No. 5 for Additional Upland Area Sulfide Sample Collection and Analysis at the Weyerhaeuser Mill A Former Site 8/31/2018 Remedial Investigation Work Plan
Work Plan Addendum No. 3 for Additional Groundwater Sampling from Selected Wells and Analysis Using Reductive Precipitation Method at the Former Mill A Site. 7/12/2018 Remedial Investigation Work Plan
Notification of Well Decommissioning at Mill A Cleanup Site 4/6/2018 Site Specific Technical Document - other
Construction Completion (As-Built) Report. Weyerhaeuser Mill A Former Cleanup Site Interim Action 1/16/2018 Interim Action Documents
Work Plan Addendum No. 2 for Geochronology Sampling and Analysis at the Former Mill A Marine Area 1/20/2017 Remedial Investigation Work Plan
Work Plan Addendum No. 1 for Follow-up Sample Collection and Testing at the Former Mill A Marine Area. 9/1/2016 Remedial Investigation Work Plan
Final Interim Action Work Plan (Mill A) - August 2015 8/14/2015 Interim Action Documents
Stage 1 Upland Source and Groundwater Investigation Data Report (Mill A) - March 2010 3/24/2010 Initial Investigation Report
Data Report Former Mill A MTCA Support Sample Collection (Mill A) - November 2007 11/1/2007 Site Specific Technical Document - other
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

  • Headquarters
    300 Desmond Dr SE
    Lacey, 98503
    Please schedule an appointment to view print documents at this location.

Contaminants 14

Contaminant Type
Soil
Groundwater
Surface Water
Air
Sediment
Bedrock
Metals - Metals Priority Pollutants C
Metals - Metals - Other C C
Halogenated Organics - Polychlorinated biPhenyls (PCB) C
Non-Halogenated Organics - Petroleum Products-Unspecified S
Non-Halogenated Organics - Phenolic Compounds C
Non-Halogenated Organics - Non-Halogenated Solvents S
Halogenated Organics - Dioxins/Furans C
Non-Halogenated Organics - Polycyclic Aromatic Hydrocarbons C
Metals - Arsenic C
Non-Halogenated Organics - Organotins S
Other Contaminant - Bioassay Benthic Failures C
Other Contaminant - Other Deleterious Substances C
Halogenated Organics - Other Halogenated Organics C C
Non-Halogenated Organics - Petroleum-Gasoline C C
S
Suspected
C
Confirmed Above Cleanup Levels
B
Below Cleanup Levels
RA
Remediated-Above
RB
Remediated-Below
R
Remediated
This contaminant list was based on our best information at the time it was entered. It may not reflect current conditions at the site.