Pennsylvania Transformer Technology
(Formerly: McGraw-Edison Co.)
Update: After January 6, 2017, information about this RCRA Corrective Action site
will be available at:
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On This Page
EPA Project Manager
Mr. Kevin Bilash
U.S. Environmental Protection Agency - Region III
1650 Arch Street
Mail code: 3LC30
Philadelphia, PA 19103-2029
Phone: (215) 814-2796
The Pennsylvania Department of Environmental Protection (PADEP) is pursuing the construction of a physical barrier (wall) at the stream’s edge to stop the migration of PCBs into Chartiers Creek. Pennsylvania Transformer Technology, Inc. (PATT) wants to install larger diameter borings (wells) for pumping to try and capture the migrating oil/PCB to avoid having to install this wall. This work is currently stalled as PATT is awaiting PADEP approval.
Discussions with PADEP indicated several maintenance issues, historical and recent releases, and remediation efforts that will have to be addressed. EPA met with PATT on October 10, 2008 and invited PADEP, but PADEP declined because they had a unilateral meeting with PATT on September 23, 2008. At the meeting, EPA reiterated the Corrective Action issues and acknowledges they can all be answered pending PADEP approval of PATT’s work plans that have been submitted to address all of these concerns. Those approvals have still not been granted to date.
EPA will continue to try to work with PADEP and review information as it is received and determine if further activities are required to protect human health and the environment. The majority of Corrective Action activities at this facility have been conducted through the Pennsylvania Department of Environmental Protection Consent Order & Agreements and through the delegated portions of RCRA or the Environmental Cleanup Program. EPA Region 3 will determine if any additional Corrective Action under RCRA is necessary.
PATT is located approximately one mile northeast of Canonsburg in Washington County, Pennsylvania along Chartiers Creek. This facility occupies 92 acres and consists of several industrial buildings that were constructed in the early 1900's. The original owner of the site was the Defense Plant Corporation, who manufactured warheads at the site for an unknown time period before 1947. In 1947, the property was purchased by Pennsylvania Transformer, who manufactured large power transformers and switch gears. In 1963, Pennsylvania Transformer merged with Lines Products to form McGraw-Edison, who also operated as an electrical transformer manufacturing/ reconditioning center. In 1985, Cooper Power Systems bought the site from McGraw-Edison and continued to manufacture switchgear and transformers. In 1996, PATT purchased the Facility from Cooper and began operations in 1997. Current hazardous wastes generated at the facility are limited to paint related waste and parts cleaning solutions.
PATT finalized a Consent Order & Agreement (CO&A) on April 14, 2005 with PADEP to address maintenance issues with the existing pump and treat systems; subsurface lithology identification; further groundwater, surface water, and sediment sampling; and issues relating to the stormwater and sewer piping.
PATT initiated a site characterization program (initiated on 4/12/05) to delineate the plume associated with the "Guard House Seep". This seep has been the source of polychlorinated biphenol (PCB) contaminated oils entering into Chartiers creek. The investigation of the Guardhouse seep has yielded significant information and the opportunity to recover contamination entering Chartiers Creek. Several groundwater monitoring wells were drilled to intercept fracture networks identified during GPR (ground penetrating radar) and VLF (very low frequency) geophysical surveys. A significant volume of oil contaminated with PCBs and volatile organic compounds (VOCs) was encountered in more than one of the wells.
Groundwater at the facility is contaminated with PCBs, VOCs, oil, and grease. Contaminated groundwater is recovered and treated under a CO&A with PADEP. The groundwater treatment system consists of two groundwater collection systems (one in the southwestern and one in the northern portion of the Facility combined) and another system to treat contaminated storm water. All treated water is discharged to Chartiers Creek through two permitted outfalls that are sampled on a regular basis.
- Some of the site’s key documents of interest are accessible below:
- Environmental Indicator Determination - Human Exposures [ 11 pp, 281, About PDF]
- Documents and reports regarding this facility also can be reviewed in person at these locations:
U.S. EPA Region III
Land & Chemicals Division
1650 Arch Street-11th Floor
Philadelphia, PA 19103
Call for an appointment.
- Submit a FOIA Request
Get instructions on how to submit a FOIA request. Additional fee for requests over 100 pages.
|Pennsylvania Transformer Technology|
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The facility site is under continued use.
- The EPA is dedicated to providing you with timely and accurate information about our work at this site. If you have any questions or concerns, please contact EPA Project Manager: Mr Ken Bilash (215) 814-2796