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Meetings & Hearings

Public hearing

Occidental cleanup documents

March 6, 2024, 4:30 p.m., Tacoma, WA 98402

Join us at the Tacoma Convention Center (in person) for a presentation about the Occidental cleanup and to submit formal public comments.

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Meeting info

We will conduct a public hearing on March 6, 2024 from 4:30 pm to 7:30 p.m. at the following location:
Tacoma Convention Center
1500 Commerce St.
Tacoma, WA 98402


The hearing will include the following agenda items:

  • 4:30 p.m. to 5:30 p.m.: Open house.
  • 5:30 p.m. to 6:30 p.m.: Presentation and a question and answer session.
  • 6:30 p.m. to 8:30 p.m.: Public hearing. Submit formal public comments verbally or in writing.

Other ways to submit formal public comments

Public comment is open from Dec. 18, 2023 until March 29, 2024. You can submit comments via:

Site background

From 1929 to 2002, the Occidental Chemical Corporation (Occidental) site in the Tacoma Tideflats was used for industrial chemical production, shipbuilding, and military activities. Occidental made chemicals to sell, such as chlorine, caustic soda (sodium hydroxide), and solvents trichloroethene (TCE) and tetrachloroethene (PCE). Occidental manufactured about 457 million pounds of solvents at this location. An estimated one million pounds of solvents contaminate the groundwater.

However, it does not affect homes, public places, public drinking water, or activities such as swimming, paddleboarding, or boating.

We oversee the investigation and cleanup of the groundwater, surface water, and soil by applying the Model Toxics Control Act (MTCA), our state cleanup law. MTCA requires us to ensure that people, wildlife, and the environment are protected from harmful chemicals.

For more information about the site and the history of contamination:

Event location icon


Tacoma Convention Center
1500 Commerce St.
Tacoma, WA 98402
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March 6, 2024, 4:30 p.m.

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Kerry Graber
Site Manager
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Comment period

Occidental cleanup site, Tacoma — Documents available for review and comment
Closes: March 29, 2024, 11:59 a.m.
See details

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