Shell OPUS Puget Sound Refinery


We invite you comment on the following dangerous waste corrective action permit, Agreed Order, State Environmental Policy Act (SEPA) Determination of Nonsignificance (DNS), and supporting documents for the Shell Puget Sound refinery's oily water sewer.

While we're not aware of any current releases from the oily water sewer, these include requirements to investigate and clean up any soil or groundwater contamination. Contaminants of concern include metals, volatile organics, and semi-volatile organics.

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

A comment period on Tesoro's Marathon Anacortes refinery's oily water sewer is taking place during this same time.

Public hearing
An online public meeting followed by a hearing on this and the Tesoro refinery action will take place:

May 20, 2021
Starting at 4 p.m.
Register or join online


The Shell Puget Sound Refinery is located at 8505 South Texas Road in Anacortes, WA. It has the ability to process between 135,000 and 160,000 barrels of crude oil each day to make a variety of petroleum products.

Learn more about current operations

Solid Waste Management Unit (SWMU) 55

SWMU 55 was originally started as a land treatment farm in 1973. It received waste until 1979 and then was inactive until 1985 when it was restarted as a nonhazardous waste land farm. The nonhazardous waste landfarm has received a wide variety of wastes including filter clays, polymerization catalysts, wastewater treatment sludges, refinery scale, oily wastes that were not ignitable, cooling tower sludge, cation exchange resins, FCCU catalyst, sandblast sand, water softener resin, air dryer desiccant, 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 this unit. Before this can take place, it must complete cleanup activities under an Agreed Order. This includes testing soils and removing them as necessary, and constructing containment berms and a clean soil cap.

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. 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

Cleanup Site Details Report

Facility Site ID: # 7

Cleanup Site ID: 2865

Anacortes, Skagit County

Status: Cleanup Started   Get definitions of Status terminology

Comment Period:
APRIL 07, 2021 - JUNE 07, 2021

Kim Wigfield
Site Manager

Angie Fritz
Public Involvement Coordinator
(360) 407-7393

Document Repositories:

Industrial Section
300 Desmond Dr SE
Lacey, 98503-1274