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January 29, 2024

Update #16 on Olympic Pipeline Gasoline Spill

The Unified Command leading the response to the discharge of gasoline from a vault associated with the Olympic Pipeline in Conway, Washington has the following updates on the progress of cleanup efforts.

Community Meetings

The Unified Command is hosting two community meetings for the public to learn more about the gasoline spill, the status of the cleanup, air monitoring, water quality monitoring, wildlife impacts, and the plans and timeline for removing the remaining impacted soil and sediment.

  • In-person open house Tuesday, Feb. 6, 5:30 – 7:30 p.m. Conway School Cafeteria, 19710 State Route 534, Mount Vernon The public is invited to drop in anytime during meeting hours. There will be no formal presentation. Experts from the Unified Command will be available to discuss all aspects of the spill response and answer questions.
  • Online webinar on Zoom Wednesday, Feb. 7, 6 p.m. Register on Zoom Experts from the Unified Command will give a presentation on the spill response, followed by a question-and-answer session.

Para más información o para solicitar un intérprete, favor de comunicarse con Scarlet Tang al 206-920-2600. To request interpretation services at either of the two meetings, please contact Scarlet Tang at 206-920-2600.

Streambank Excavation

In the coming weeks, response teams will begin installing a temporary sheet piling wall to isolate the eastern bank of Hill Ditch and allow response crews to dig out the remaining impacted soil and sediment and replace it with clean soil. This approach will allow responders to isolate contaminants from the ditch while minimizing disruption to any potential fish migration.

The wall will be installed along approximately 220 feet of the impacted east shoreline, just north of SR 534. Large interlocking steel sheet pilings will be installed using a crane-mounted vibratory pile-driving system. Delivery and installation of the crane will require a full closure of SR 534 for a period of four to six hours. The date and times of the closure will be communicated to the public as soon as they are available. The closure will not happen during peak commuting or school pick-up or drop-off times.

Pile driving operations are expected to begin in early February and last approximately two weeks. The pile driving system will operate during daylight hours. Residents may notice elevated construction noise and vibration in the immediate area. Vibration and noise monitoring will be in place along the Hill Ditch dike and along the pipeline.

General Information

Area residents who live along Hill Ditch may continue to see sheen as pockets of gasoline that were trapped by vegetation and other debris on the water and along the shoreline are released by wind, rain, and the natural rise and fall of stream levels. Spill response teams are locating and removing these pockets of gasoline.

Air monitoring conducted at the direction of the Unified Command continues to indicate no public health risk from gasoline fumes. Community air monitoring will continue during work hours when impacted soil is being removed.

Sampling downstream of the spill site continues and no exceedances of environmental or health-based screening values for hydrocarbons have been reported at any location since December 22, 2023.

Members of the public who come upon injured or deceased wildlife are asked not to touch or relocate affected wildlife and to call 1-800-22BIRDS.

A claims center has been established by the Olympic Pipeline. Please call 1-866-616-1558 to report any personal or property damages resulting from the spill.

The Unified Command consists of the U.S. Environmental Protection Agency, the Washington Department of Ecology, the Skagit County Department of Emergency Management, bp, and the Swinomish Indian Tribal Community.

Status updates are posted on Ecology’s website at ecology.wa.gov/OlympicPipelineSpill.

Photos and videos are available on Ecology’s Flickr and YouTube sites. For further information on this incident, contact: Scarlet Tang/Ecology: 206-920-2600 Jenn Rogers/Skagit County: 360-630-6604 Pam Brady/bp: 360-920-1171 Bill Dunbar/EPA: 206-245-7452