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Superfund Program Implements the Recovery Act

Lawrence Aviation Industries Inc.

Port Jefferson, New York

Site Description
The Lawrence Aviation Industries (LAI) site encompasses approximately 126 acres in Port Jefferson Station, NY.  The site property includes an inactive manufacturing complex, which historically produced titanium sheeting for the aeronautics industry.  The complex consists of 10 buildings, to the west of which lies an abandoned, unlined, earthen lagoon that received liquid wastes.  The site also includes a down-gradient contaminated ground water plume, located north of the LAI building complex, which is primarily a residential area.  Residential single-family homes are located east and west of the site.  The site’s affected media include site soils, ground water, surface water and down-gradient site sediments. 

Cleanup Activities to Date
EPA added the site to the National Priorities List in 2000.  Prior to listing, EPA conducted a removal action to provide bottled water and, subsequently, to connect homes with private wells affected by ground water contamination to public water supplies.  In 2004, EPA conducted another removal action to un-stack and re-stage approximately 1,300 drums, containers and cylinders containing various flammable solids, acids, bases and unknown compounds.   EPA disposed of most of the drums and containers off‑site.  In 2005, in a third removal action, EPA transported a 13.5-ton shipment of transformers and capacitors filled with suspected polychlorinated biphenyls liquids off-site for disposal.  In 2006, EPA selected the long-term cleanup approach for the site, which calls for soil excavation, ground water treatment and in-situ chemical oxidation.  EPA has started the soil excavation part of the cleanup plan and has installed vapor intrusion mitigation systems at four locations.

Recovery Act Project Activity
EPA will use the up to $5 million in Recovery Act funds allocated to this site to implement a portion of the ground water remedy for the site, which consists of an extraction and treatment system and the in-situ chemical oxidation process. These actions, aimed at source control, will prevent the further migration of ground water contaminants beyond the LAI plant site boundary.   Over time, the actions also will eliminate further contamination of down-gradient surface waters and sediments in Old Mill Pond and Old Mill Creek in Port Jefferson.

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