Industrial Section

Industrial Section

Tesoro Refinery

Wastewater permit

The Dept of Ecology (Ecology) issued the final National Pollutant Discharge Elimination System wastewater permit for the Tesoro refinery. For more information, read the final permit documents, including response to comments, in the final permits database and support document Agreed Order No. 10299.

Location & History

Constructed in 1955, the refinery is located in Skagit County on March Point. It discharges wastewater into Fidalgo Bay.


The refinery has capacity to process an average of 105,000 barrels per day of crude oil.

Major Products
  • Gasoline
  • Diesel oil
  • Turbine and jet fuel
  • Liquid petroleum gas
  • Residual fuel oil
Facility Site Number: 6

Location and Mailing address

    Anacortes Refinery
    March Point Road
    Post Office Box 700
    Anacortes, WA 98221
Air Operating permit: Northwest Clean Air Agency has jurisdiction.
Website, phone number: (360) 428-1617, (800) 622-4627

RCRA Permit: WAD-009-275-082, contact Ann Lowe, (360) 407-6916 to review this permit

Ecology wastewater and hazardous waste permit contact:
For more info visit the Company Website

Facility 24 hr Contact Number:
    (360) 293-9119