(AGENPARL) – mar 26 settembre 2023 Issued: Sep 26, 2023 (1:19pm EDT)
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EPA Updates Plan to Address Contaminated Groundwater Monitor Devices,
Inc./Intercircuits, Inc. Superfund Site in Wall Township, New Jersey
NEW YORK (September 26, 2023) – The U.S. Environmental Protection Agency (EPA)
has updated its original cleanup plan for the groundwater at the Monitor
Devices, Inc./Intercircuits, Inc. Superfund Site in Wall Township, New
Jersey.  Under the update, a process called chemical oxidation will be used
to clean up 1,4- dioxane contamination that was discovered in groundwater at
the site after the original groundwater cleanup plan was developed.
“This updated plan will address the contamination we found in the
groundwater.  It will also ensure ongoing monitoring to make sure our actions
are safe and effective,” said EPA Regional Administrator Lisa F. Garcia.
“These actions will build on the progress we have already made. Most
importantly, the public water supply is not impacted by the
contamination.”                                       
                                                   
                                     
The Monitor Devices/Intercircuits site is the former location of a
manufacturing facility that produced and assembled printed circuit boards from
1977 to 1980. The operations polluted the groundwater with volatile organic
compounds (VOCs) and 1,4-dioxane. 1,4-dioxane can increase the risk of cancer.
VOCs can cause health problems such as headaches, nausea, and liver
damage.  
In 2005, EPA chose a cleanup method called in-situ bioremediation to break
down the VOCs in the groundwater by injecting non-hazardous additives into the
groundwater to help bacteria degrade the VOCs. The system was installed and
have been operating since 2010. It will continue to operate until cleanup
goals are achieved, which is anticipated in 2025. However, this cleanup method
does not work for 1,4-dioxane, which EPA discovered at the site after the
cleanup began in 2010.
Under the final cleanup plan contractors will remove 1,4-dioxane from the
groundwater using a method called in-situ (in place) chemical oxidation with
permeable reactive barriers. An underground wall made of a treatment material
will destroy the 1,4-dioxane contamination as groundwater flows through it.
Groundwater samples will be collected and analyzed to ensure that the
technology is effective. EPA will monitor the groundwater for several years
after the 1,4-dioxane cleanup goals have been met to ensure that the
groundwater quality has been restored.
For additional background and to see the final cleanup plan, visit
the Monitor Devices, Inc./Intercircuits, Inc. Superfund site profile page
including EPA’s responses to the public comments that were received.
Follow EPA Region 2 on Twitter and visit our Facebook page. For more
information about EPA Region 2, visit our website.
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For further information: Contact: Carlos Vega, (646) 988-2996,
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