Anacortes Port of Dakota Creek

Facility Site ID: 2670 Cleanup Site ID: 5174

Public Comment Period June 09, 2022-July 11, 2022

We are conducting a 30-day public comment period on several documents related to the next phase of site cleanup. You’re invited to review and comment on the following documents:

Remedial Investigation and Feasibility Study (RI/FS): This study describes the extent and nature of contamination at the site and presents potential options for how to clean it up.

Draft Cleanup Action Plan: This plan describes the final cleanup action chosen from the potential options presented in the feasibility study for the remaining contamination in the soil and groundwater at the site, and explains the requirements that the cleanup must meet, including follow-up monitoring of the site.

Consent Decree: This legal document explains the terms by which the Port of Anacortes will perform the final cleanup of the Dakota Creek Industries site, by implementing the Cleanup Action Plan.

Draft Public Participation Plan: This plan describes Ecology’s public comment process and how the public can provide input on plans for cleanup at this site.

You can provide comment on the above documents through Ecology’s online public comment form.
A PUGET SOUND INITIATIVE Site - Reaching the goal of a healthy, sustainable Puget Sound.

Site Description

Photo: Washington State Coastal Atlas, 2016 (click to enlarge)
Photo: Washington State Coastal Atlas, 2016 (click to enlarge)
The Dakota Creek site is an active shipyard that is used for vessel construction and maintenance. Dakota Creek Industries currently leases the site from the Port of Anacortes. Since around 1879, the site has been used for maritime-related industrial activities like shipping, shipbuilding, repairs, and vessel and fuel storage. These activities have resulted in soil, groundwater, and sediment contamination. Other potential sources of contamination at the site include previous outfall discharges from the former Scott paper mill and City of Anacortes municipal sewer prior to disconnection.

Before 2008, the marine area of the site featured multiple piers, docks, and marine railway boatlifts. One marine railway was removed in the early 1990s and the other was removed in 2008. This second railway removal was part of a redevelopment project that also took out two docks and dredged sediment from the waterway to make it deeper, reinforced the shoreline, and built a new pier.

During this redevelopment an interim action cleanup was completed to remove around 26,000 cubic yards of contaminated marine sediment and upland soil from the marine area and land. Contaminants that remain at the site are located in upland soils and groundwater. Contaminants include arsenic, nickel, and carcinogenic polycyclic aromatic hydrocarbons (cPAHs).

A Remedial Investigation/Feasibility Study (RI/FS) was performed in 2020 to describe the extent and nature of contamination at the site and present potential options for how to clean it up. Following the RI/FS, a Cleanup Action Plan was drafted, describing the final cleanup action work for the remaining contamination in the soil and groundwater at the site, and explains the requirements that the cleanup must meet.

Next Steps

After finalizing the cleanup plans, the soil excavation and removal at the site could begin as soon as fall 2022, and will be coordinated to minimize disruption to the ongoing shipyard operations. To perform this work, crews will break up and remove pavement that is currently in place, then excavate and remove contaminated soil from the accessible areas of the site that are most likely to impact the groundwater if left uncontrolled. Any contaminated soil that remains will be capped with pavement to prevent people and wildlife from coming in contact with it. Long-term monitoring of the groundwater will then be put in place to ensure that contamination does not migrate offsite and create a risk of exposure.
Legal 3
Document Title Document Date Document Type
Dakota Creek Industries Consent Decree 4/14/2022 Consent Decree
DCI Consent Decree Appendices - Cleanup Action Plan and Site Vicinity Map 2/22/2022 Consent Decree
Port of Anacortes Dakota Creek AO Remedial Action 12/12/2007 Agreed Order
Public Information 3
Document Title Document Date Document Type
Dakota Creek Industries Public Participation Plan 2022 6/6/2022 Public Participation Plan
Dakota Creek Industries 2022 Fact Sheet 6/6/2022 Fact Sheet\Public Notices
Port of Anacortes Dakota Creek Fact Sheet Site Investigation Documents 10/1/2007 Fact Sheet\Public Notices
Technical Reports 11
Document Title Document Date Document Type
Dakota Creek Industries Remedial Investigation and Feasibility Study 4/27/2020 Remedial Investigation / Feasibility Study
Port of Anacortes Dakota Creek Interim Action Report October 2010 10/6/2010 Interim Action Documents
Port of Anacortes Dakota Creek - Site Hazard Assessment 8/31/2008 Site Hazard Assessment Report
Port of Anacortes Dakota Creek Site Hazard Assessment 8/1/2008 Site Hazard Assessment Report
Port of Anacortes Dakota Creek RI/FS Interim Action Work Plan Addendum June 2008 6/17/2008 Interim Action Documents
Port of Anacortes Dakota Creek RI/FS Interim Action Work Plan April 2008 4/1/2008 Interim Action Documents
Sediment Sampling Data Report, Final, January 2007 1/3/2007 Site Specific Technical Document - other
Appendix C Laboratory Analytical Report for Sediment, Final, December 2006 12/18/2006 Site Specific Technical Document - other
Appendix B, Surface Sediment Sample Collection Forms, Final, November 2006 11/17/2006 Site Specific Technical Document - other
Appendix E Sediment Sampling Data Report, Final, October 2004 10/31/2004 Sampling and Analysis Plan
Appendix D, Figures presentedin the Sediment Quality Analysis Report, Final, February 2003 2/21/2003 Site Specific Technical Document - other
Voluntary Cleanup Program 1
Document Title Document Date Document Type
Termination Letter for NW1030 & NW0874 9/5/2007 Voluntary Cleanup Program Opinion – 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 8

Contaminant Type
Soil
Groundwater
Surface Water
Air
Sediment
Bedrock
Halogenated Organics - Halogenated Organics S S S S S
Metals - Metals Priority Pollutants C S S C C
Metals - Metals - Other S S S S C
Halogenated Organics - Polychlorinated biPhenyls (PCB) B RB
Non-Halogenated Organics - Petroleum Products-Unspecified S C S C
Non-Halogenated Organics - Phenolic Compounds S S S S C
Non-Halogenated Organics - Non-Halogenated Solvents S S S S
Non-Halogenated Organics - Petroleum-Other 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.