Facility Site ID: 2728 Cleanup Site ID: 5182

Public Comment Period May 12, 2022-June 13, 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:
  • Draft Interim Action Work Plan: This describes the remediation work that will occur at the Port of Everett property on the west side of Federal Avenue, which includes excavating contaminated soil and installing a permanent barrier wall.
  • Agreed Order Amendment: This formally allows the interim action work and delays approval of a Draft Cleanup Action Plan until the activities identified in the Draft Interim Action Work Plan are completed.
  • State Environmental Policy Act (SEPA) Determination of Non-Significance: This explains our decision that the activities outlined in the interim action work plan are not likely to harm the environment. The SEPA checklist can be found as an attachment to the interim action work plan.
  • Draft Public Participation Plan: In 2009, we prepared a public participation plan for this site. This is an updated draft that describes how the public can provide input on plans for cleanup.

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.


The ExxonMobil / American Distributing Company (ADC) site was a former petroleum bulk storage and distribution facility located south of and adjacent to the former Kimberly-Clark Worldwide mill. The predecessors of ExxonMobil Oil Corporation owned the entire site from 1927 to 1974. Mobil Oil continued to operate the southern portion of the site until 1987 but sold the northern portion to A.P. Miller for use by ADC. ADC used their portion of the site for bulk petroleum operations until 1990.

Between 1998 and 2000, all structures were removed from the entire site. Following an  investigation in 1998, an “interceptor trench” was built to recover petroleum and the site was paved. It remains an asphalt parking lot today.

More recent site investigations have found petroleum-related contaminants in the soil and groundwater. The contaminants include: total petroleum hydrocarbons (TPH), carcinogenic polycyclic aromatic hydrocarbons (cPAHs), lead, benzene, ethylbenzene and xylene.

Ongoing work at the site includes monthly petroleum gauging and oil recovery from on-site
wells, and semi-annual groundwater monitoring.


Site cleanup has been partially addressed under three prior legal agreements:
  • 1996 Agreed Order – Actions in 1996 included cleanup of petroleum releases at the City of Everett's combined sewer overflow line into Port Gardner. Actions also included pilot testing of petroleum recovery technologies. As a result, direct discharge of petroleum into Port Gardner via the combined sewer overflow was eliminated and about 23,000 gallons of petroleum contamination was recovered.

  • 1998 Agreed Order – Actions in 1998 included preparing a Remedial Investigation/ Focused Feasibility Study report (data from 1988 to 1996 were compiled and evaluated) and performing an interim action to contain petroleum contamination on the site. Interim actions performed (between 1998 and 2000) included demolition of site structures, construction of an interceptor trench (for petroleum recovery), and construction of a site cover to minimize infiltration of surface water into subsurface soil. Since 2000, groundwater monitoring and petroleum recovery activities are ongoing at the site. As a result of this Order, the ExxonMobil and ADC properties were converted into a parking lot, to allow for possible future remediation activities at the site.

  • 2010 Agreed Order – In March 2010, ExxonMobil, ADC, and Ecology to perform additional investigations to characterize the contamination at the site and to develop cleanup options.

The cleanup investigation under the 3rd Agreed Order has included:

  • February 2010: ExxonMobil ADC collected soil profile samples along the City of
    Everett’s proposed new combined sewer outfall alignment. The proposed alignment
    runs adjacent to the site.
  • June 2010: ExxonMobil ADC found and removed corroded piping that led to the former bulk storage tanks during soil profile work. Initial Focused Feasibility Study fieldwork began with the collection of soil and groundwater data.
  • November 2010: Additional Focused Feasibility Study soil and groundwater data were collected along with a shallow test pit where oil was surfacing through cracks in the asphalt.
  • February 2011: A tidal study was conducted to investigate potential tidal influence on site groundwater.
  • April 2011: A Focused Feasibility Study Data Gaps Report detailing the results of the initial investigation including the tidal study was completed. The Data Gaps report was reviewed and used to identify additional data needs to define the full nature and extent of contamination at the site.
  • December 2011: ExxonMobil ADC conducted an excavation in the northeast portion of the site to remove liquid phase petroleum hydrocarbons in soil and groundwater on the BNSF and former Kimberly-Clark property. The excavation was conducted in support of the City of Everett to address contamination that may be encountered during construction of the city’s Combined Sewer Overflow project located near the site.

A focused set of cleanup options for the ExxonMobil and ADC properties is currently being developed.

Legal 3
Document Title Document Date Document Type
ExxonMobil ADC Agreed Order Amendment 2022 4/12/2022 Administrative Order on Consent Amendment
ExxonMobil ADC Final Agreed Order DE 6184 Optimized Version 3/16/2010 Agreed Order
ExxonMobil ADC Final Agreed Order DE 6184 Full-Version 3/16/2010 Agreed Order
Public Information 4
Document Title Document Date Document Type
ExxonMobil ADC 2022 Fact Sheet 5/12/2022 Fact Sheet\Public Notices
ExxonMobil ADC Public Participation Plan 2022 5/2/2022 Public Participation Plan
ExxonMobil ADC Site Investigation Documents 10/1/2009 Fact Sheet\Public Notices
ExxonMobil ADC Public Participation Plan 11/1/2008 Public Participation Plan
State Environmental Policy Act 1
Document Title Document Date Document Type
ExxonMobil ADC SEPA Determination of Nonsignficance 2022 5/12/2022 SEPA Documents
Technical Reports 16
Document Title Document Date Document Type
ExxonMobil ADC Groundwater Well Installation Work Plan 10/26/2021 Remedial Investigation Work Plan
ExxonMobil ADC Draft Interim Action Work Plan 7/20/2021 Interim Action Documents
ExxonMobil ADC Semi-Annual Groundwater Monitoring Report First Half of 2021 7/20/2021 Groundwater Monitoring Report
ExxonMobil ADC Excavation Delineation Report 4/21/2021 Site Specific Technical Document - other
Semi Annual Groundwater Monitoring Report 2nd Half 2020 3/15/2021 Groundwater Monitoring Report
ExxonMobil ADC Excavation Delineation Drilling Work Plan 12/21/2020 Remedial Action Report
ExxonMobil ADC Focused Feasibility Study Appendices B-H 8/23/2019 Feasibility Study
Exxon Mobil ADC Focused Feasibility Study Appendix A 8/23/2019 Feasibility Study
ExxonMobil ADC Focuse Feasibility Study Figures 8/23/2019 Feasibility Study
ExxonMobil ADC Site Characterization/Focused Feasibility Study Report 8/23/2019 Feasibility Study
ExxonMobil/ADC Property Draft Final Site Characterization/Focused Feasibility Study Report May 2019 5/6/2019 Site Specific Administrative Document - other (Administrative correspondence)
ExxonMobil ADC Data Gaps Investigation Report May 2010 5/4/2010 Feasibility Study
ExxonMobil ADC Work Plan Sampling & Analysis Plan 2/26/2010 Sampling and Analysis Plan
ExxonMobil ADC Focused Feasibility Study Work Plan 2/26/2010 Feasibility Study
ExxonMobil ADC Focused Feasibility Study Final Work Plan February 2010 2/26/2010 Feasibility Study
ExxonMobil ADC Site Hazard Assessment 8/1/1996 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

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

Contaminants 6

Contaminant Type
Surface Water
Non-Halogenated Organics - Non-Halogenated Solvents C C
Non-Halogenated Organics - Polycyclic Aromatic Hydrocarbons C
Non-Halogenated Organics - Benzene C
Non-Halogenated Organics - Petroleum-Diesel C C
Non-Halogenated Organics - Petroleum-Gasoline C C
Non-Halogenated Organics - Petroleum-Other 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.