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Lewis Chemical

Site Contact:
Athanasios Hatzopoulos


Site Location:
12-24 Fairmount Court
Hyde Park, MA 02136

Lewis Chemical Site Update - May 2024




Removal work to clean up the Lewis Chemical Site located at 12-24 Fairmount Court Hyde Park, MA 02136 has been completed by the U. S. Environmental Protection Agency (EPA).




To date, around 5,200 tons of soil contaminated with polychlorinated biphenyls (PCBs), volatile organic compounds and heavy metals has been excavated and transported off-site to EPA-approved landfills.   


Starting in May of 2024, EPA will begin to restore the site by bringing in clean soil to backfill areas where contaminated soils were removed. Water is continuing to be used to control dust from going into the air. Monitoring for contamination in the air also is continuing.


Depending on the weather, remaining restoration work may take until the end of July 2024. Community members may see EPA and contractors on-site, typically between 6:00 am and 4:30 pm, Mondays through Fridays. People also may see trucks coming in and out of the site at different times each day.


Informational signs about the cleanup are posted. They are near each entrance to the Fairmount Station and at the gate to the site. A traffic plan to truck off contaminated soil and to bring in clean soil was created and discussed with the Boston police and fire departments. A police officer directs traffic at the intersection of Fairmount Court and Fairmount Avenue during trucking. An EPA contractor is also present by the train station to direct traffic whenever a truck is moving past.




 The Lewis Chemical Site is comprised of three properties located at Fairmount Court, 12-24 Fairmount Court, and Fairmount Avenue in Hyde Park, Suffolk County, Massachusetts.  The city of Boston (city) owns two parcels, and the other is owned by the Commonwealth of Massachusetts and managed as environmental preservation land by the Department of Conservation and Recreation (DCR).  The entire Site abuts the Neponset River and is adjacent to the Fairmount Massachusetts Bay Transportation Authority train station and railroad tracks.  The area around the Site is a densely populated residential/commercial neighborhood with approximately 20,858 people residing within a one-mile radius.  Also, within the one-mile radius there are 15 schools, three nursing homes and six childcare centers.


Many different businesses operated at the City-owned properties from the late 1800s until the early 1960s.  The Lewis Chemical Corp., operated from 1963 to 1983, collecting, transporting, storing, and processing hazardous wastes.  In 1983, after an explosion and fire at the facility, Lewis Chemical’s license to operate was revoked.


From 1983 to 2021, the city and DCR completed environmental assessments of their portions of the Site and found that the Site soils were contaminated, most notably with polychlorinated biphenyls (PCBs) as the contaminant of concern, in addition to volatile organic compounds (VOCs), and metals.

On June 21, 2022, and November 9, 2022, MassDEP and the city respectively requested EPA’s assistance to address hazardous substances existing at the Site.  In October 2022, EPA initiated a Preliminary Assessment/Site Investigation and confirmed that the contaminants in Site soils pose a risk to public health and the environment.

In January of this year, EPA approved a $3.9 million short-term cleanup plan, or removal action.  EPA began this removal action in March of 2023. The goal was to remove the source of contamination by excavating and disposing soil contaminated with PCBs and other collocated hazardous substances.