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Bishop Tube

This page was last updated on March 10, 2021

Site Facts

Location: Malin Road, south of U.S. Route 30, East Whiteland Township, Chester County
HSCA Site Since: 1999
Primary Contaminant of Concern: Trichloroethene (TCE) its breakdown products, and heavy metals, among other contaminants of concern, have been detected in soil, surface water, groundwater and indoor air at the Site
Historical Use: Stainless steel tubes were manufactured from the 1950’s until 1999
Previous Property Owners and Operators: Johnson Matthey Inc. (previously known as J. Bishop, Matthey Bishop) , Whittaker Corporation, Christiana Metals Corporation, Alloy Steel Corporation, Marcegaglia USA, Central & Western Chester County Industrial Development Authority
Current Property Owner: Constitution Drive Partners L.P. (CDP)
Listing: On September 11, 2010 DEP facilitated the future Remedial Response action(s) as defined in HSCA by placing the Site to Pennsylvania’s Priority List of Hazardous Sites for Remedial Response (“PAPL”)

What's New (As of March 2021)

Please refer to the CDP and Investigation Status sections for updated information and documentation.

Current Property Update

CDP submitted preliminary land development plans to East Whiteland Township, which the municipality approved by resolution with conditions on February 10, 2021. For details associated with the plans, please refer to East Whiteland Township's website. CDP has not yet submitted to DEP any applications related to its proposed development activities, such as storm water management, etc. CDP is required to allow reasonable access to the property for assessment and remediation. DEP considers any local land development issues, such as zoning or steep slope variances, to be exclusively under the authority of East Whiteland Township.

Investigation Status

On January 13, 2021, DEP received the updated remedial investigation (RI) report (RIR)and the Feasibility Study (FS). The RIR & FS were submitted by Roux Associates on behalf of Johnson Matthey, Inc. and Whittaker Corp. (JM/W), pursuant an agreement with DEP. The purpose of the RIR is to document the results of the investigation of releases and threats of releases of hazardous substances at the Bishop Tube Site (Site) into groundwater and surface waters. The purpose of the FS is to evaluate potential remedial action alternatives for the Site.

Note: Appendix C & Appendix S (Attachments A & D) have not been uploaded due to their size. They are available to review upon request.

January 13, 2021: Bishop Tube Feasibility Study (PDF)

Note: These documents supersede and replace the June 10, 2019 RI & June 17, 2019 FS document.

On February 22, 2021, DEP notified Roux Associates and JM/W that it considers these documents to be Final and accepted them for future placement in the Administrative Record for the Site.

DEP tasked its contractor, Groundwater & Environmental Services, Inc. (GES) to prepare a Remedial Alternatives Analysis to supplement Roux’s Feasibility Study. The purpose and primary focus of this report is to identify applicable remedial alternatives to mitigate the potential risks to human health and the environment caused by the presence of contaminants in the unsaturated soils on the property.

DEP also tasked GES to prepare a Technology Assessment memorandum for the Site. The purpose and primary focus of this memo is to provide estimated costs and timeframes for four potential remedial alternatives to mitigate the potential risks to human health and the environment, caused by the presence of identified contaminants in the source soils.

Based on its review of the GES 2020 submittals regarding remedial alternatives for addressing soil contamination, Roux performed a limited soil investigation and prepared a memo about that investigation and an addendum to the FS to evaluate a coordinated soil and groundwater cleanup remedial alternative.

What's Next (As of March 2021)

  • DEP will propose a remedial response action to address the contamination associated with the Site. DEP will incorporate all information it uses in formulating its proposal into the Administrative Record. DEP's responsibility under the Hazardous Sites Cleanup Act is to select a remedy that is protective of human health and the environment and complies with all statutory and regulatory requirements.
  • The Administrative Record will be open for public comments for 90-days. During the comment period, DEP will hold a public hearing at a location to be determined at a later date.
  • East Whiteland Township has been awarded a Technical Evaluation Grant (TEG) pursuant HSCA. The TEG provides up to $50,000 for conducting an independent technical evaluation of a proposed remedial response at a HSCA site.


Please note, this is not a comprehensive list of correspondence related to the Site. Additional related documents may be found in DEP files maintained at Southeast Regional Office. For more information on scheduling a file review, please visit DEP's Public Records page.

Expand AllClick here for a more accessible version


Agency for Toxic Substances and Disease Registry (ATSDR) Evaluations

April 6, 2016: ATSDR letter (PDF)
July 16, 2008: ATSDR Evaluation (PDF)

Legal Agreements

Public Comment Period

On April 1, 2017 the Department published a notice in the PA Bulletin and Daily Local Newspaper to provide public notice with respect to amendments to the PPA between DEP and CDP. DEP and CDP executed two amendments to the PPA in January 2007 and June 2010. DEP accepted written comments on the Amended PPA's up until July 7, 2017. In January 2018, DEP finalized its Response to Comments document.

Contacting DEP

To schedule an appointment to review files associated with the Bishop Tube site and project, please call the Norristown Office at 484-250-5910.
Please direct correspondence or inquiries to one of the following:

  • Project Information: Dustin Armstrong, Project Officer at
  • Community and Media Relations: Virginia Nurk, Community Relations Coordinator at
  • Legal: Adam Bram, Supervisory Counsel at
  • Legislative Inquiries: Rob Fogel, Local Government Liaison at