The EPA recently provided a community update on the Olin Chemical Superfund Site:
Community Update (May 2022)
Olin Chemical Superfund Site – Wilmington, Mass.
WILMINGTON, MA — Throughout the spring, EPA held a series of interviews to further understand community members’ concerns about the site. The feedback will be incorporated into a Community Involvement Plan (CIP), which will guide EPA’s community involvement process for the site. EPA aims to have a draft of CIP completed this summer for public review and comment.
EPA is continuing to oversee subsurface investigation activities in areas east, north, and west of the 51 Eames Street Olin property. The purpose of these studies is to confirm the depth and shape of the bedrock surface to improve the efficiency of remediation within the aquifer.
In May, Olin will begin a study to evaluation options to treat “Dense Aqueous Phase Liquid” (or “DAPL”) and contaminated groundwater that will be pumped out of the aquifer. EPA estimates that the study, called a “treatability study,” will take 9-10 months to complete.
EPA continues its negotiations with the Potentially Responsible Parties (PRPs) for the site, with the goal of reaching an agreement to conduct or finance the cleanup actions selected in EPA’s March 2021 Record of Decision.
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