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Hazardous Waste Cleanup: Lockheed Martin Corporation Building 100 (Formerly: Lockheed Martin Information Systems and Global Systems) in King of Prussia, Pennsylvania

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Cleanup Status

The Remedial Investigation and Risk Assessment (RIRA) Report submitted in September 2014, was disapproved by Pensylvania department of Environmental Protection (PADEP), primarily due to the absence of a detailed sensitive receptor survey since groundwater is used for drinking purposes in the surrounding area and impacts to surface water were not appropriately assessed. The majority of these issues have since been addressed, and a revised RIRA is anticipated to be submitted in the near future.

Investigative efforts at the facility began in 2006 after petroleum-impacted soil was observed beneath an aboveground water storage tank was removed. Delineation of impacted soil and contaminated soil removal was performed in 2007.

Under the Government Performance and Results Act (GPRA), EPA set national goals to address RCRA corrective action facilities. Under GPRA, EPA evaluates two key environmental clean-up indicators for each facility:  Current Human Exposures Under Control; and Migration of Contaminated Groundwater Under Control. The Facility met both indicator goals in September 2016 and September 2017, respectively. Under the Government Performance and Results Act (GPRA), EPA set national goals to address RCRA corrective action facilities. Under GPRA, EPA evaluates two key environmental clean-up indicators for each facility:  Current Human Exposures Under Control; and Migration of Contaminated Groundwater Under Control. The Facility met both indicator goals in September 2016 and September 2017, respectively.

 
 


 

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Site Description

Interactive map of Lockheed Martin Information Systems & Global Systems, King of Prussia

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General Electric Space Systems Division owned and operated the facility from 1961 to the 1990s, when it was sold to Lockheed Martin. The facility has conducted research and development of aerospace systems and limited small-scale manufacturing of these systems since its inception, although from 2000 to 2007 most of the manufacturing operations were decommissioned.

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Contaminants at this Facility

Soil and groundwater beneath the central portion of the facility is contaminated primarily with tetrachloroethene (PCE) along with lower levels of other chlorinated ethenes. Groundwater is not used for any purpose at the Facility, but is used as a drinking water source less than ¾ of a mile from the facility. Groundwater fate and transport modeling has thus far suggested that contamination from the facility is unlikely to be impacting any drinking water wells in the vicinity; more detailed investigation is anticipated in the revised RIRA. Although indoor air samples included in the RIRA did not exceed non-residential screening levels, several sub-slab samples were elevated, suggesting that vapor intrusion could be a potential pathway of concern. According to the RIRA, the facility has planned to mitigate the vapor intrusion pathway via sub-slab depressurization systems or other means. Other exposure routes to contamination are likely to be insignificant due to the depth to groundwater and controls that are anticipated to be implemented as part of the final remedy for the facility.

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Institutional and Engineering Controls at this Facility

Institutional controls ensuring groundwater is not used and that facility property is only used for non-residential purposes are likely to be part of the final remedy for the facility.

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Land Reuse Information at this Facility

Lockheed Martin continues to use the facility for the research and development of aerospace systems, applications, and software.

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Site Responsibility at this Facility

Resource Conservation and Recovery Act (RCRA) Corrective Action activities at this facility have been conducted under the direction of EPA Region 3.

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