Shell OPUS Puget Sound Refinery


Non-hazardous Waste Landfarm Cleanup

We invite you comment on and Agreed Order and State Environmental Policy Act (SEPA) Determination of Nonsignificance (DNS) on a cleanup at Solid Waste Management Unit 55 (SWMU 55).

Read the public comment notice for information on how to submit comments.

SWMU 55 originally started as a land treatment farm in 1973. It received waste until 1979 and was inactive until 1985, when it was restarted as a non-hazardous waste landfarm. It received a wide variety of wastes including catalysts, wastewater treatment sludges, refinery scale, oily wastes, cooling tower sludge, resins, sandblast sand, clay and sand filter media, and petroleum contaminated soil.

Potential releases of hazardous substances include total petroleum hydrocarbons, BTEX (Benzene, Toluene, Ethylbenzene, and Xylene), carcinogenic polycyclic aromatic hydrocarbons (cPAHs), and mercury.

The refinery proposes to build three new above ground petroleum storage tanks at SWMU 55. Before this can take place, the refinery must complete cleanup activities that protect human health and the environment. Activities include testing soils and removing them as necessary, and constructing containment berms and a clean soil cap.


The Shell Oil Products US (OPUS) refinery is located at 8505 South Texas Road in Anacortes, WA. The refinery processes crude oil into a variety of petroleum products. It has the ability to process between 135,000 and 160,000 barrels of crude oil each day.

Oily Water Sewer

The refinery’s permit identified the oily water sewer as a solid waste management unit with potential for releases to soil and groundwater.  Ecology is not aware of any current releases from the unit.  The refinery will submit a plan for ongoing investigation of releases from the oily water sewer with corrective action, remediation, and monitoring, as needed. Contaminants of concern include metals, volatile organics, and semi-volatile organics.

West Impounding Basin

Hydrocarbons were discovered in the refinery’s West Impounding Basin in 1990. The facility installed a light non-aqueous phase liquid recovery system to recover the hydrocarbons from the groundwater. Since the startup of the system, groundwater monitoring takes place quarterly and samples are collected every six months. Other contaminants of concern include 15 metals, volatile organics, and semi-volatile organics. 


Map showing site location as Skagit County, WA SITE INFORMATION


View Electronic Documents

Site Summary Report

Facility Site ID: # 7

Cleanup Site ID: 2865

Anacortes, Skagit County

Status: No Further Action   Get definitions of Status terminology

Comment Period:
NOVEMBER 28, 2018 - JANUARY 04, 2019

Kim Wigfield
Site Manager

Angie Fritz
Public Involvement Coordinator
(360) 407-7393

Document Repositories:

Industrial Section
300 Desmond Dr SE
Lacey, 98503-1274