SeaPort Sound Terminal

We invite you to review and comment on SeaPort Sound Terminal NPDES Draft Water Quality Permit for SeaPort Sound Terminal in Tacoma from May 1, 2023 – June 12, 2023.

If we determine there is significant public interest, an online public hearing to accept oral comments will be held on June 5, 2023, starting at 6 p.m. Please use this link to register for the public hearing. Registration is required. To express interest in this I public hearing or to request registration help, contact Tara Roberts at tara.roberts@ecy.wa.gov. We will notify interested parties if the public hearing will not be held due to a lack of significant interest.
If you would like to be added to the list of interested parties for SeaPort Sound Terminal and receive updates on Ecology’s Industrial Section actions at the site, contact Tara Roberts at tara.roberts@ecy.wa.gov.

When the comment period ends, we'll review the comments received and make a final decision on issuing the permits.

We regulate water and hazardous waste activities at the SeaPort Sound Terminal in Tacoma.

Facility information

With about 60 employees, this petroleum product tank farm stores and transports asphalt, distillate oil, diesel, biodiesel, ethanol, and industrial oil.

The current volume of tankage at this facility is 1.5 million barrels.
The facility sends process wastewater to the City of Tacoma Central Sewage Treatment Plant.
Stormwater that drains from basins surrounding the tank farms is processed through sumps and oil adsorbing filtration fabric. It is then sent to the Hylebos Waterway, which empties into Commencement Bay.

Permit information

Wastewater permit
- Support document, includes the response to comments

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