Sonoco Products Company
Agreed Order and Public Participation Plan
April 16, 2026, 12:01 a.m. - May 27, 2026, 11:59 p.m. PT
We invite you to comment on the Agreed Order and Public Participation Plan for Sonoco Products Sumner (Pierce County).
You can review documents:
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Sumner Pierce County Library
1116 Fryar Ave
Sumner, WA
Monday - Thursday 10 am to 7 pm ; Friday – Sunday 10 am – 6 pm. -
Department of Ecology Headquarters (Lacey)
300 Desmond Dr. SE
Lacey, WA
360-280-4325
The proposed Order requires Sonoco to complete cleanup activities that protect human health and the environment. Actions include investigating the site to determine the nature and extent of contamination for the site. This investigation will include testing soils and groundwater for compliance with MTCA’s risk-based standards. The results of the investigation will then be used to determine the remedial actions needed at the site.
The proposed Public Participation Plan is Ecology’s plan for public outreach. It has information on how we will reach out to the public about this cleanup project, and how the public can share input with us.
Sonoco is located at 1802 Steele Avenue in Sumner, Washington. The property is considered industrial in a light industrial neighborhood. The facility is located less than a quarter of a mile from the White River and about three-tenths of a mile from Seibenthaler Park. Seibenthaler Park is located in a residential neighborhood just on the other side of the railroad tracks from the light industrial neighborhood.
Comment online
- Use our online comment form
Comment by mail
Department of Ecology, Industrial Section
PO Box 47600
Olympia, WA 98504-7600
Questions
To request ADA accommodation, contact Ecology's ADA Coordinator by email at ecyadacoordinator@ecy.wa.gov, or call 360-407-6831, 711 (relay service), or 877-833-6341 (TTY). More about our accessibility services.