U.S. Oil Refinery

We regulate water and hazardous waste activities at the U.S. Oil and Refining Co. oil refinery, tank farm, and marine terminal in Tacoma.


Water quality

The comment period on the draft National Pollutant Discharge Elimination System water quality permit for the U.S. Oil refinery in Tacoma ended Aug. 9, 2019.

Read the comment notice for more information.

A public meeting, followed by a hearing to accept oral comments, on this permit took place:

Aug. 7, 2019
Starting at 6:30 p.m.
At the Holiday Inn Express & Suites, 2102 South C Street in Tacoma, WA

Facility information

The refinery began operating in 1957, and has about 190 employees. Owned by ParPacific, and doing business as U.S. Oil, it processes crude oil into a variety of petroleum products.

  • At full production, the refinery is capable of processing approximately 42,000 barrels of crude oil each day.
  • Wastewater from the petroleum-making process is treated and sent to Blair Waterway, which empties into Commencement Bay.
  • Stormwater is sent to the Lincoln Avenue Ditch, the Erdahl Ditch by way of Marshall Avenue, and the City of Tacoma's stormwater pipe on the Port of Tacoma Road.

Permit information

The Puget Sound Clean Air Agency regulates the refinery’s air quality activities. Visit the Puget Sound Clean Air Agency website or call 206-343-8800 for more information.

U.S. Oil contacts

Company website
Facility phone: 253-383-1651
Location: 3001 Marshall Ave., Tacoma, Wash.