Department of Ecology News Release - April 27, 2017

More time for public to comment on Tacoma’s Occidental Chemical cleanup

60 days added for comment on cleanup study


Additional time was just added to the public comment period for the former Occidental Chemical cleanup site on Tacoma’s Hylebos Waterway. With an additional 60 days, people now have until June 26 to review and comment on potential cleanup options proposed for the contaminated site.

The Washington Department of Ecology extended the comment period on a feasibility study following a request on Tuesday from the Puyallup Tribe. This is the second extension to the comment period. Ecology earlier doubled the length of the comment period to 90 days after community groups asked for more time.

The study lays out potential cleanup options and methods for the former Occidental Chemical Corporation site, which was contaminated from decades of chemical manufacturing, ship building and military operations. Public input will help Ecology decide whether to approve four documents related to the draft study:

  • Draft agreed order – requires the company to perform tests, develop a monitoring plan, and submit a draft cleanup action plan.
  • Vapor intrusion memo and reports – details the vapor footprints below the former Occidental plant production area and solvent production settling ponds.
  • Corrective action permit – allows cleanup work to begin at facilities that have treated, disposed of, or stored dangerous waste.
  • Porewater sampling results – shows where contamination may enter the Hylebos.

These documents can be found on the Occidental cleanup site webpage on Ecology’s website. Paper copies can be viewed at Ecology’s Southwest Regional Office, 300 Desmond Dr. SE, in Lacey; at the office of Citizens for a Healthy Bay, 535 Dock St., Suite 213, in Tacoma, or at the Kobetich Library, 212 Browns Point Blvd. NE, in Tacoma.

All questions and comments should be directed to Ecology’s Kerry Graber by:

  • Phone 360-407-0241
  • Email
  • Mail to Southwest Regional Office, PO Box 47775 Olympia, WA 98504-7600.

Contact information

Andrew Wineke
Communications manager
360-407-6149 or