EPA RCRA ID: DED042263764
The Resource Conservation and Recovery Act (RCRA) is the public law that creates the framework for the proper management of hazardous and non-hazardous solid waste. Corrective action is a requirement under RCRA that facilities that treat, store or dispose of hazardous wastes, or did so in the past, investigate and clean up hazardous releases into soil, groundwater, surface water and air. For more information, and for more information on RCRA-specific terms used on this page, please visit EPA’s umbrella RCRA web page or EPA’s RCRA Corrective Action page.
On this page:
- Cleanup Activities
- Facility Description
- Institutional/Engineering Controls
- Enforcement and Compliance
- Related Information and Publicly Available Electronic Records
- Contacts for this Facility
Cleanup Activities
The Statement of Basis (SB) describing the initial remedy at the facility was issued in June, 2000. A thirty-day public comment period extended until July 7, 2000 on the proposed remedy, no comments were received during that time and, as a result, the proposed remedy was implemented. The Record of Decision, which included the Final Decision and Response to Comments, was issued in August, 2000.
The initial remedy specified in the SB at the DuPont Glasgow facility consisted of the following items:
- Solid Waste Management Unit (SWMU) 12 (Well No. 4): COMPLETED - DuPont performed the final confirmatory groundwater monitoring requirements to document the removal of VOCs in the year 2000.
- SWMU 13 (Permasep Building) - DuPont sampled groundwater wells bi-annually at this area to ensure in-situ degradation processes were reducing the Volatile Organic Compound (VOC) contaminated groundwater plume. These results were reported to the Department of Natural Resources and Environmental Control (DNREC) as part of a Sampling, Analysis, Monitoring and Reporting (SAMR) program.
- Area of Concern (AOC) D: COMPLETED - DuPont excavated zinc and copper contaminated sediments present at this location and performed confirmatory sampling in early 2002.
On February, 2010 EPA issued an Explanation of Significant Differences (ESD) and Corrective Action Completed report for the facility removing two requirements:
- EPA removed the requirement for the facility to maintain a deed notice for SWMU 13. It was replaced with other protective institutional controls (IC) by the State of Delaware. The IC is in the form of a Ground Water Management Zone which will control groundwater use for drinking water purposes.
- EPA also removed the requirement for on-going ground water monitoring at SWMU 13. The effected groundwater is not used as potable water and the contaminant of concern in groundwater were just above drinking water standards.
The ESD was public noticed from March 9 - April 8, 2010, no comments were received. On April 13, 2010 EPA issue DuPont a No Further Corrective Action letter for the Glasgow facility. Also a Memo of Agreement was signed by Delaware Department of Natural Resources and Environmental Control (DNREC) on April 29, 2010 establishing a groundwater monitoring zone (GMZ) and a link to the report is included in the Documents, Reports and Photographs for this facility.
On August 1,2017, the EPA conducted a Long Term Stewardship assessment to assess whether the remedy was implemented and protective of human health and the environment. EPA determined that the remedy institutional and engineering controls have been fully implemented and no control deficiencies were identified.
.Cleanup Actions or environmental indicators characterizing the entire facility are shown below. This listing, and all the data on this page, come from EPA’s RCRAInfo and are refreshed nightly to this page. For this table, a blank in the Status column could mean the action either has not occurred or has not been reported in RCRAInfo.
Cleanup Activities Pertaining to the Entire Facility
| Action | Status | Date of Action |
|---|---|---|
| Human Exposure Under Control Human Exposure Under Control(CA725) | ||
| Groundwater Migration Under ControlGroundwater Migration Under Control (CA750) | ||
| Remedy DecisionRemedy Decision (CA400) | ||
| Remedy ConstructionRemedy Construction (CA550) | ||
| Ready for Anticipated Use Ready for Anticipated Use (CA800) | ||
| Performance Standards AttainedPerformance Standards Attained (CA900) | ||
| Corrective Action Process TerminatedCorrective Action Process Terminated (CA999) |
For definitions of the terms used, hover over or click on the term.
Cleanup Activities Pertaining to a Portion of the Facility
| Action | Area Name | Date of Action |
|---|
For definitions of the terms used, hover over or click on the term.
Facility Description
Link to a larger, interactive view of the map.
Located in Glasgow, New Castle County, Delaware, the site was acquired by DuPont in 1966 and was farmland and undeveloped woodlands. DuPont constructed several buildings, which it used as a manufacturing facility for medical instrument systems and products and for the assembly of reverse osmosis water filters (Permasep Business).
In 1994 much of the farm land and wooded areas were sold to Glasgow Farms, Inc. The majority of this land has been sold to the State and the County and is the current home of the Glasgow Regional Park. In 1997 most of the remaining acreage was sold to Dade-Bering Inc. and Sterling Inc. as part of DuPont's sale of its Medical Products business.
As cleanup was completed and approval obtained from EPA/DNREC, DuPont was able to sell parts of the site no longer subject to Resource Conservation and Recovery Act (RCRA) Corrective Action. These parts of the site were put into beneficial reuse by third parties. DuPont currently owns only a small portion of the original 977-acre site; the 22 acres around SWMU 13 (Permasep Building). Once the remediation was completed at SWMU 13 the deed for the 22 acres passed from DuPont to a third party who is currently redeveloping the area.
The main contaminants in the groundwater and soil were VOCs which included tetrachloroethylene. Only SWMU 13 (Permasep area) groundwater currently has VOC contaminants slightly above EPA limits. This groundwater is not used for drinking.
The metals zinc and copper were found in one 10 foot by 130 foot area of soil at AOC D. These soils were removed by DuPont in 2002.
Institutional and Engineering Controls at this Facility
The Institutional Control is in the form of a Ground Water Management Zone which will ensure groundwater is not used for drinking water purposes.
Institutional and Engineering Controls help ensure human exposure and groundwater migration are under control at a cleanup facility. Where control types have been reported by states and EPA in EPA’s RCRAInfo, they are shown below. Not all control types are needed at all facilities, and some facilities do not require any controls. Where there are blanks, the control types may not be needed, may not be in place, or may not be reported in RCRAInfo.
Are Controls in Place at this Facility?
|
Control(s) Type |
Control(s) in Place? |
Areas Subject to Control(s) |
|
|---|---|---|---|
|
Institutional ControlsNon-engineering controls used to restrict land use or land access in order to protect people and the environment from exposure to hazardous substances remaining in the site/or facility. (CA 772) |
Informational DevicesInformational Devices (ID) |
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Governmental Controls (GC) |
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Enforcement and Permit Tools (EP) |
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| Proprietary ControlsProprietary Controls (PR) | |||
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Engineering ControlsEngineering measures designed to minimize the potential for human exposure to contamination by either limiting direct contact with contaminated areas or controlling migration of contaminants. (CA 770) |
Groundwater ControlGroundwater Control (GW) |
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Non-Groundwater |
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For definitions of the terms used, hover over or click on the term.
Enforcement and Compliance at this Facility
EPA’s Office of Enforcement and Compliance Assurance (OECA) provides detailed historical information about enforcement and compliance activities at each RCRA Corrective Action Site in their Enforcement and Compliance Historical Online (ECHO) system.
RCRA Enforcement and Compliance Reports from ECHO
Related Information and Publicly Available Electronic Records
For more information about this facility, see these other EPA links:
- RCRA information in EPA’s Envirofacts database
- Information about this facility submitted to EPA under different environmental programs as reported in EPA’s Facility Registry Services
- Alternative Names for this facility as reported by EPA programs in EPA’s Facility Registry Services
- Cleanups in My Community provides an interactive map to see EPA cleanups in context with additional data, and lists for downloading data
- Search RCRA Corrective Action Sites provides a search feature for Corrective Action Sites
Documents, Photos and Graphics
Contacts for this Facility
EPA Region implements and enforces the RCRA Corrective Action program for and federally recognized tribes.
For further information on this corrective action site, use the Contact Information for Corrective Action Hazardous Waste Clean Ups listings that are accessible through Corrective Action Programs around the Nation.