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EPA Project Manager
Khai M. Dao
U.S. Environmental Protection Agency - Region III
1650 Arch Street
Philadelphia, PA 19103
Phone: (215) 814-5467
In 2005, EPA completed the Environmental Indicators (EIs) Determination for the Congoleum facility (Facility) located in Marcus Hook, Pennsylvania. The two EIs are “Current Human Exposures Under Control” and “Migration of Contaminated Groundwater Under Control.” In general terms, these measures indicate current “environmental conditions”: whether people are currently being exposed to environmental contamination at unacceptable levels, and whether any existing plumes of contaminated groundwater are getting larger or adversely affecting surface water bodies.
As part of the EI determinations, EPA and its consultant, the US Army Corps of Engineers, conducted a soil and groundwater investigation at the Facility. Of concern, the investigation detected elevated levels of chromium, lead and nickel in groundwater. Congoleum stated that there have been no releases at the site or any operations at the Facility that would have contributed to the elevated levels of the aforementioned heavy metals in groundwater. EPA determined that the residences in the area are connected to public water and there are no direct human exposures to groundwater. Therefore, EPA concluded that the EI for Current Human Exposures is under control. However, additional information was required to complete the EI for groundwater. Specifically, EPA needed to evaluate two nearby superfund sites to determine if the operations at these sites may have impacted the groundwater at the Facility. EPA recently completed the evaluation of the superfund sites and concluded that these sites did not contribute to heavy metals detected in groundwater.
EPA acknowledges that the groundwater flow direction at the Facility is to the south-southeast and discharges into the Delaware River. There are several current and former oil refineries and industrial sites located along the Delaware River and directly south of the Congoleum facility. Operations at these facilities have been known to have impacted the Delaware River. Regardless of the potential source(s) that may contribute to the heavy metal levels detected in groundwater at the Congoleum facility, EPA determined that these levels do not significantly impact the Delaware River and are negligible relative to the impacts already caused by some of the industrial facilities located along the River.
However, to complete the EI for “Migration of Contaminated Groundwater Under Control” and to assist in making a Final Determination that No Further Action at the Facility under RCRA Corrective Action , EPA has requested in 2014, any and all information the Facility has gathered during any previous investigations, inspections, interim measure activities and any other relevant data, which helps to identify potential sources of contamination and characterize the current site conditions. EPA expects to issue a final decision for the Congoleum site by the end of 2014.
The Congoleum facility is located in Marcus Hook, PA. The facility occupies approximately 53 acres. The facility manufactures Congoleum residential and commercial resilient sheet, plank and vinyl tile products.
- Some of the site’s key documents of interest are accessible below:
- Environmental Indicator Determination - Human Exposures [ 10 pp, 281, About PDF]
- Environmental Indicator Determination - Groundwater Migration [ 9 pp, 248, 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.
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The Site is under continued use.