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News Releases from Region 01

EPA Extends Public Comment Period for Proposed Cleanup Plan for the Olin Chemical Superfund Site in Wilmington, Massachusetts

Public Comment Period Extended to Oct. 26; Virtual Public Hearing Scheduled for Sept. 22

Contact Information: 
David Deegan (
(617) 918-1017

WILMINGTON, MASS. - The U.S. Environmental Protection Agency (EPA) announced today the extension of the public comment period for a proposed cleanup plan for the Olin Chemical Superfund Site in Wilmington, Massachusetts.

The public comment period, which began on August 26, 2020, has been extended 30 days and will now run through October 26, 2020.

The purpose of the plan is to provide interim cleanup options to remove ongoing sources of contamination in groundwater and final cleanup options for addressing contaminated soil, sediments, and surface water at the site, and to solicit public comment on EPA's preferred alternatives for addressing the contamination.

EPA added the site to the Superfund program's National Priorities List in April 2006. The cleanup proposal is detailed in a document called a Proposed Plan.

Opportunity to learn more and provide comment on the Proposed Plan:

To review the Proposed Plan and learn more about the Olin Chemical Superfund Site, visit:

The public is invited to submit written input on the Proposed Plan during the comment period, which has been extended through October 26, 2020.

EPA has also established a dedicated voice mailbox at (617) 918-1880 to receive oral comments during the comment period.

EPA held a virtual informational meeting for the public on August 25, 2020 to review the Proposed Plan and answer questions from the public, and this meeting was recorded and is available to review on EPA's website. EPA will hold a virtual public hearing on Tuesday, September 22, 2020 from 7:00 – 9:00 p.m. to provide a forum for members of the public to provide oral comments on the Proposed Plan. EPA will not be responding to comments during the Sept. 22nd public hearing. Comments will be provided in writing at the time EPA issues a final decision.

Visit EPA's website: for information on how to participate in EPA's virtual public hearing. Closed captioning will be available during the event.

Written comments may be mailed or e-mailed by Monday, October 26, 2020 to:
Melanie Morash
U.S. EPA Region 1 – New England
Mail Code 7-4
5 Post Office Square
Boston, MA 02109-3912