EPA Proposes Plan for Former Manufactured Gas Plant Site in Green Bay, Wisconsin

EPA Proposes Plan for Former Manufactured Gas Plant Site in Green Bay, Wisconsin

Agency to hold July 15 public meeting and hearing to discuss proposed plan and accept public comments. Comment period ends July 31.

July 1, 2026

CHICAGO (July 1, 2026) - Today, U.S. Environmental Protection Agency (EPA) proposed a long-term plan to control and monitor contaminated sediment, clay, and surface water at the Wisconsin Public Service Corp. Green Bay Manufactured Gas Plant site located at 700 N. Adams St. in Green Bay, Wisconsin.

The former manufactured gas plant began operating in 1871, converting coal and oil into gas for heating and lighting until the late 1940s. Plant operations contaminated soil, sediment, and groundwater at the site with volatile organic compounds, polynuclear aromatic hydrocarbons, metals, and cyanide.

The company, under EPA oversight, previously removed contaminated sediment and installed a cap over remaining contaminated sediment and clay. EPA's proposed plan includes controls for use of the site and long-term monitoring to ensure the cap remains effective and continues to prevent exposure to remaining contamination.

The proposed plan and a fact sheet are available on EPA's Wisconsin Public Service Corp. Green Bay Manufactured Gas Plant Superfund website.

Public comments will be accepted through July 31. Members of the public can submit their comments in the following ways:

• Online, using EPA's web form
• By email: [email protected]

• By mail (postmarked by Friday, July 31):

  Meshach Padilla
  EPA Region 5 (RE-19J)
  77 W. Jackson Blvd.
  Chicago, IL 60604-3590

• In-person at a public meeting and hearing:

  When:
  Wednesday, July 15
  6 - 7:30 p.m.

  The meeting will start with a presentation followed by a question-and-answer session. After the Q&A, a court reporter will be present to record official comments. Written comments will also be accepted at the meeting.

  Where:
  Brown County Library Central Library
  515 Pine St.
  Green Bay, Wisconsin

To learn more, please visit EPA's Wisconsin Public Service Corp. Green Bay Manufactured Gas Plant Superfund website.

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