Northrup Grumman Systems Corp.
(Formerly: Sperry Marine)
EPA Project Manager
U.S. Environmental Protection Agency - Region 3
1650 Arch Street
Mail code: 3LC20
Philadelphia, PA 19103-2029
On January 2, 2008, Unisys Corporation (Unisys) entered into a RCRA Facility Lead Agreement (FLA) with the U.S. Environmental Protection Agency (U.S. EPA) Region III. Unisys agreed to conduct environmental investigations at the Sperry Marine site (Site) in Charlottesville, Virginia, and, if necessary, perform Interim Measures to meet the RCRA Corrective Action Goals.
Prior to the FLA, Unisys had conducted environmental investigations and remedies under VA Department of Environmental Quality direction. In April 2008, Unisys submitted a RCRA Facility Investigation (RFI) Work Plan to U.S. EPA. EPA approved the Plan. The RFI Work Plan describes the environmental investigation to be conducted in accordance with the FLA. Field activities commenced in August 2008 and include monitoring well installation, groundwater sampling and potential source area investigations.
Site characterization data indicate that soil and groundwater in certain on-site locations contain tetrachloroethene (PCE), trichloroethene (TCE), cis-1,2-dichloroethene and other VOCs. In the North Stream, PCE was detected in sediment and TCE was detected in surface water above U.S. EPA Region III risk screening levels for aquatic organisms. The planned development by Albemarle Place EAAP, LLC includes the elimination of the North Stream by diversion of surface water flow to a piping system. This system will carry the current surface water flow underground and then discharge it off-site.
Additional data were collected in May 2009 in order to meet the RFI objectives. The RFI Report was submitted to EPA in September 2010. EPA is reviewing the Report. To mitigate soil contaminated with PCE in Area of Concern 2 (AOC-2), Unisys submitted an Interim Measure workplan in May 2011 that EPA commented on. Unisys excavated PCE contaminated soil in AOC-2 and disposed of it in a permitted landfill. Development of the AOC-2 area is scheduled to begin in 2012.
The Facility is located at 1070 Seminole Trail in Charlottesville, Albemarle County, Virginia near the intersection of Seminole Trail (U.S. Highway 29) and Hydraulic Road (State Route 743). The property consists of 81 acres purchased in 1955 by Sperry Rand Corporation. Sperry Rand Corporation changed its name to Sperry Corporation and then merged with Burroughs Corporation in 1986 to form Unisys Corporation (Unisys). Since late 1956, a portion of the Site has been used for the manufacturing of navigational instruments and systems by various owners and operators. The Site consists of the current Sperry Marine facility located on approximately 19 acres, currently owned and operated by Northrop Grumman Systems Corporation, and approximately 62 undeveloped acres to the northeast, northwest, and southwest currently owned by Albemarle Place EAAP, LLC.
Various manufacturing processes have been conducted at the Sperry Marine facility including machining, degreasing, soldering, and painting. Gasoline for trucks and oils for generators and recycling were stored in aboveground storage tanks (ASTs) located at various times on the northeast side of the facility. Several petroleum underground storage tanks (USTs) used for storing heating oil and diesel fuel were located at various times on the southwest side of the facility. The ASTs and the USTs have been removed. Three storage tanks remain: a 6,000-gallon UST, a 500-gallon AST for a generator, and a 500-gallon AST for oil recycling. A paint pit in the northern portion of the facility was used for waste disposal in the 1950s, 1960s, and early 1970s.
Site Characterization Reports were submitted to VADEQ for the Site in 1996 and 1997. Supplemental site characterization data were submitted in 1998. The risk assessments in the reports submitted to VADEQ concluded that the environmental conditions at the Site did not present unacceptable risks to human health or the environment provided that restrictions were placed on future use of the properties. VADEQ issued Certificates of Satisfactory Completion of Remediation in 2000 and 2002.
Deed restrictions were placed on the properties prohibiting the use of groundwater
for any purpose except environmental monitoring and testing. Additional deed restrictions were placed on the current facility and 23 acres to the north and northeast, prohibiting residential use. In August 2008, VADEQ released the residential use prohibition on 1.86 acres of the 23 acres in the western portion as requested by the current owner, Albemarle Place EAAP, LLC.
Unisys collected post-certification groundwater monitoring data to provide more information on the nature and extent of dissolved phase VOCs in groundwater at the Site. VADEQ gave notice in February 2008 that the post-certification monitoring requirements were satisfied with Unisys’ entry into EPA’s FLA.
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