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EPA Project Manager
Mr. Griff Miller
U.S. Environmental Protection Agency - Region III
1650 Arch Street
Mail code: 3LC30
Philadelphia, PA 19103-2029
PADEP Project Manager
Mr. Walter Payne
Southeast Regional Office
2 East Main Street
Norristown, PA 19401
Phone: (484) 250-5792
- The final remedy for the facility is complete and consists of an institutional control to prohibit residential use of the property. This institutional control is codified in an environmental covenant, which can be accessed below. The Final Decision for the facility was issued by EPA on July 12, 2011.
- Several environmental investigations occurred at the facility in the 1980s, among which were a preliminary assessment and a site investigation that characterized soil, sediment, surface water, and groundwater. Further investigations in the 1990s focused on low-level radioactive slag that was characterized and deemed safe for unrestricted use in 2001 (this material was subsequently removed from the facility in 2006). Site decommissioning activities, buried drum and underground storage tank removals, and fire pond characterization activities occurred in the 2000s. More information on the investigation and remediation of the facility can be found in the Statement of Basis, below.
- The former Cabot Supermetals facility is approximately 102 acres in size and is bordered by Rapp Creek to the north, wooded areas to the east and west, and farmland and private residences to the northwest and south. The property is currently owned by the Cabot Corporation
- The facility began operations in 1959 as Penn Rare Metals. Penn Rare Metals primarily extracted beryllium from beryl ore. The Kawecki Division of Cabot Corporation began purchasing interests in Penn Rare Metals in 1960, and by 1963 obtained full ownership. Cabot Corporation continued to operate the facility for the production of cesium, rubidium, and niobium alloys and high-purity germanium and tellurium until 2002, when all operations ceased. All but two buildings (an office building and a warehouse/garage) have been demolished, and the facility is currently vacant.
- Primary contaminants at the facility included heavy metals and low-level radioactive slag material that was determined not to be of concern to human health or the environment (the slag was nevertheless removed from the facility in 2006). The 2004 Summary Environmental Report included a risk assessment that determined that the levels of heavy metals (primarily arsenic and vanadium) remaining in facility soils fall within acceptable risk levels protective of human health and the environment. However, since the concentrations of these heavy metals exceed Residential Soil Risk-Based Concentrations, an institutional control preventing residential use of the facility property is required.
- An environmental covenant between EPA and the facility was recorded in 2011 and includes an institutional control restricting land use of the property to non-residential purposes.
- Some of the site’s key documents of interest are accessible below:
- Corrective Action Final Decision [11 pp, 659 KB, About PDF]
- Corrective Action Statement of Basis [ 8pp, 55 KB, About PDF]
- Environmental Covenant [ 14pp, 399 KB, About PDF]
- Environmental Indicator Determination - Human Exposures [7pp, 25 KB, About PDF]
- Environmental Indicator Determination - Groundwater Migration [8pp, 32 KB, 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.
|Cabot Supermetals||Cabot Supermetals [PDF, 1296 KB, 1 pages About PDF]|
Click on a thumbnail to enlarge the photo or GeoSpatial PDF Map)
- The site is unused.