Superfund Information Systems: Site Profile

Superfund Site:


Health & Environment

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What Are the Risks at the Site?

The Lipari Landfill is considered Human Exposure Under Control. Prior to cleanup actions at the site, chemical contaminants threatened human health and the environment. Air was contaminated with various volatile organic compounds (VOCs). Groundwater, surface water and sediments were contaminated with VOCs and heavy metals including arsenic, chromium and lead. Soil was contaminated with VOCs, heavy metals and phthalates. Leachate seeps contained VOCs, heavy metals and phenols. People may have come into direct contact with air, groundwater, surface water, soil and sediment contamination from the landfill. People who trespassed at Alcyon Lake for swimming or who consumed fish taken from the lake were potentially exposed to contaminants. Pollutants that seeped into the marshlands and streams may have harmed the wildlife inhabiting the area.

A security fence was installed by EPA to restrict access to the landfill and neighboring wetlands areas which had been impacted. Pollutants migrating from the landfill were reduced by constructing a landfill containment system consisting of an underground cut-off wall around the area and a synthetic membrane cover over the landfill surface. Groundwater, leachate and vapors are reduced through the containment system enhancements; ongoing soil vapor extraction remediation; groundwater collection, treatment, off-site monitoring and long-term O&M of groundwater collection systems. Off-site contamination was completed with the remediation of Chestnut Branch marsh and Alcyon Lake which have greatly reduced the potential for exposure to hazardous materials at the Lipari Landfill site.

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Contaminant Information

View a full list of contaminants of concern for this site.

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Performance Measures

EPA uses performance measures to track environmental results at Superfund sites. If you have any questions or concerns about the measures at this site, please contact the site team members listed under Site Contacts.

Read more about Superfund Remedial Performance Measures.

Status at this
Superfund Site
What does this mean?
Human Exposure Under Control Yes Yes means assessments indicate that across the entire site:
  1. There are currently no unacceptable human exposure pathways; and
  2. EPA has determined the site is under control for human exposure.

No means an unsafe level of contamination has been detected at the site and a reasonable expectation exists that people could be exposed.

Insufficient data means that, due to uncertainty regarding exposures, one cannot draw conclusions as to whether human exposures are controlled, typically because:
  1. Response to the contamination has not begun; or
  2. The response has begun, but it has not yet generated information sufficiently reliable to evaluate whether there are currently any unacceptable human exposure pathways at the site.
Groundwater Migration Under Control Yes

Yes means EPA reviewed all information on known and reasonably expected groundwater contamination. EPA concluded the migration of contaminated groundwater is stabilized and there is no unacceptable discharge to surface water. EPA will conduct monitoring to confirm that affected groundwater remains in the original area of contamination.

No means EPA has reviewed all information on known and reasonably expected groundwater contamination, and the migration of contaminated groundwater is not stabilized.

Insufficient data means that due to uncertainty regarding contaminated groundwater migration, EPA cannot draw conclusions as to whether the migration of contaminated groundwater is stabilized.

Construction Complete Yes

Yes means the physical construction of the cleanup is complete for the entire site.

No means either physical construction is not complete or actions are still needed to address contamination.

Sitewide Ready for Anticipated Use No Yes means:
  1. All cleanup goals affecting current and reasonably anticipated future land uses of the entire site have been achieved, so there are no unacceptable risks;
  2. All required land-use restrictions or other controls have been put in place; and
  3. The site has achieved Construction Complete status.

No means that one or more of these three criteria have not been met. However, a site listed as no may still have redevelopment occurring on portions of the site and may be eligible for additional redevelopment.

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