EPA RCRA ID: PAD070283023
On this page:
- Cleanup Status
- Facility Description
- Contaminants at this Facility
- Institutional/Engineer Controls
- Enforcement and Compliance
- Related Information
- Contacts for this Facility
Cleanup Status
Note: The EPA is the lead agency for managing cleanups at this facility.
EPA released a Corrective Action Statement of Basis for the Imperial Metal and Chemical Company on August 15, 2013. The public was invited to comment on the proposal that corrective action remedy with controls at the facility during a public comment period which lasted thirty calendar days from the date this matter was publicly noticed in a local newspaper . On September 16 , EPA completed the public comment period, during which time EPA did not receive any comments on its proposal so the Corrective Action Remedy at the site included Institutional Controls restricting land use and groundwater use.
On July 14, 2020, 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 Background
A Phase 1 Environmental Site Assessment (ESA) was conducted by contractor GZA Environmental Inc. in 2005 at the property. During the site reconnaissance, petroleum staining was observed on the basement floor of the IHOP, and LNAPL was observed in the basement sumps. GZA initiated Phase 2 intrusive investigation activities in 2005/2006 during which six soil samples (including a duplicate sample collected at SB-2) were collected from the boreholes of the monitoring wells installed onsite. The soil samples were collected from intervals exhibiting elevated photo ionization detector (PID) readings, and/or visible/olfactory evidence of fuel oil impact and were analyzed for Semi volatile Organic Compounds (SVOCs) and diesel range organic (DRO). GZA initially compared the results to the Pennsylvania Department of Environmental Protection (PADEP) non-residential used aquifer soil MSCs, and then later compared them to the residential used aquifer soil MSCs. None of the detected SVOCs were above either the residential or non-residential MSCs. GZA had demonstrated attainment of the residential statewide health standard for soils containing SVOCs, and PADEP granted liability relief to Imperial/Aramingo for SVOCs in soils in January 2011.
Groundwater investigations were completed by facility/owners between 2006 and 2010. Phase 2 subsurface investigation activities at the facility property included:
- Sampling of apparent petroleum product contained in two sumps in the IHOP basement
- Installation of nine well points (corings through the basement floor) to evaluate assess the possible occurrence of free product beneath the IHOP basement floor (Note: the well points were used to measure the thickness of any free product floating on the groundwater beneath the floor – no soil, groundwater, or product samples were collected from the well points)
- Collection of soil samples from the boreholes of four groundwater monitoring wells installed along the East Tioga Street portion of the property
- Collection of groundwater samples from the monitoring wells and beneath the petroleum product in one of the basement sumps
Groundwater samples collected from the four groundwater monitoring wells and the from beneath the petroleum product in the front sump were analyzed for target compound list (TCL) SVOCs, DRO, total petroleum hydrocarbons (TPH), and iron (sump only), as well as oil and grease, biochemical oxygen demand (BOD), chemical oxygen demand (COD), and total suspended solids (TSS). The results were compared to the PADEP non-residential, TDS less than or equal to 2,500 mg/L, used-aquifer MSCs. For the monitoring well groundwater samples, the following SVOCs, DRO, and TPH concentrations were detected. The concentrations were below the MSCs, with the exception of bis(2-ethylhexyl)phthalate which was detected at above the MSC in sample MW-4. The highest detected concentrations were reported in sample MW-4, which was the closest monitoring well to Tioga Fuel.
Cleanup Actions or environmental indicators characterizing the entire facility are shown below. It is not intended as an extensive list of milestones/activities. This listing, and all the data on this page, come from EPA’s RCRAInfo and are refreshed nightly to this page. For this table and the Cleanup Activities Pertaining to a Portion of the Facility table that follows, 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 |
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For definitions of the terms used, hover over or click on the term.
Facility Description
Link to a larger, interactive view of the map.
The facility is located at 3400 Aramingo Avenue, Philadelphia, Pennsylvania. The facility was situated on approximately 3.5 acres of land.
Imperial operated as a large quantity generator of hazardous waste under USEPA ID number PAD070283023. The facility manufactured type metal, and zinc and magnesium plates for the graphic arts industry. It later began manufacturing lithographic plates (flat, thin-gauge aluminum sheets with specially prepared surfaces and photosensitive coatings) when the use of type metal was phased out. The facility also reclaimed quantities of tin from type metal dross accepted from its customers.
The Aramingo Avenue facility was operational from at least 1930 until 1986. In 1986, the facility phased out its type metal manufacturing operation and moved its lithographic plates manufacturing operation to 2050 Byberry Road, Philadelphia, Pennsylvania. The Aramingo Avenue facility was closed in 1986. The Byberry Road facility was operated under a separate USEPA ID number. Imperial no longer operates at either location. The former Aramingo Avenue facility was demolished in 1987, and Imperial Plaza Shopping Center (Plaza) now operates at this address.
Contaminants at this Facility
The concentrations were below the compounds in groundwater with the exception of bis(2-ethylhexyl)phthalate.
Institutional and Engineering Controls at this Facility
Institutional Controls restrict the use of land and groundwater and are enforced via environmental covenant (deed restriction).
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?
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Control(s) Type |
Control(s) in Place? |
Areas Subject to Control(s) |
Documents available on-line: |
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|---|---|---|---|---|
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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
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.