Letter to the Community
February 1, 2013
Dear Residents of Pompton Lakes,
DuPont is cooperating with local, state and federal agencies to remediate the Acid Brook Delta area of Pompton Lake. DuPont remains committed to the Pompton Lakes community regarding our obligation to remedy environmental impacts related to former operations at the site.
To accomplish this remediation in accordance with existing local, state and federal regulatory guidelines, DuPont developed a comprehensive plan that was first proposed to the New Jersey Department of Environmental Protection and the U.S. Environmental Protection Agency (EPA) in 2006 and again in 2008 after additional studies were completed at the request of the agencies. The proposed remedy was approved by the regulatory agencies in October 2009.
In 2010 and 2011, DuPont completed additional investigation and evaluation work at the request of the EPA, selected a qualified contractor to perform the work, developed an implementation work plan, hosted a public information poster session on the project and began applying for the necessary permits to complete the project. In April 2011, DuPont submitted a permit modification application to the EPA as required by the regulatory process. The EPA held a public hearing on the draft permit modification in January 2012, and in December 2012 DuPont received a final permit from the EPA that contained new requirements for remediating sediments and soils in areas of Pompton Lake.
Based on a review of the EPA's final permit, DuPont has identified specific aspects of the final permit which are inconsistent with the EPA's existing procedures, regulations and technical guidance that oversee the regulatory process. One example is that the final permit has open-ended remediation requirements that are based on undetermined cleanup obligations. By including future, undefined cleanup obligations as conditions of the final permit, the EPA has eliminated any meaningful opportunity not only for DuPont, but also members of the community, to comment or provide input to the agency's future cleanup decisions.
Future decisions on cleanup, based on defined cleanup objectives and with appropriate public comment, are important for the success of the project. In an effort to raise this concern and others contained in the final permit for re-evaluation by the agency, DuPont has filed an appeal to the final permit as issued by the EPA.
We hope to resolve the appeal issues quickly, but I want to emphasize that our decision to pursue an appeal regarding certain aspects of the EPA's final permit does not, in any way, lessen our desire to begin work in the lake as quickly as possible. Our goal is to begin cleanup work in the lake as early as 2014. Concurrent with this appeal, we will meet with local and state officials to pursue approval of existing permit applications, and with the U.S. Fish and Wildlife Service and the EPA to discuss additional studies. We will also continue to safely implement those remedial programs currently ongoing at the site.
I encourage those interested in learning more about our programs to contact us at (973) 492-7703 or visit our remediation project information center located at 223 Wanaque Avenue.
David E. Epps, P.G.
Project Director, Pompton Lakes Works
DuPont Corporate Remediation Group
We are committed to remediating contamination resulting from past manufacturing operations in a way that is protective of people and the environment. We are proud of our long history within the community and we will remain a partner in Pompton Lakes until our remediation efforts are completed.
DuPont has been actively involved for more than twenty years in completing the required state and federal regulatory processes by remediating soil, sediment and groundwater contamination both on and off DuPont property.
- Since 1985, we have completed extensive investigations to identify and develop the appropriate remediation options. Additional sampling is being completed to meet regulatory requirements at several areas within the site to identify the boundary of impacted soil.
- To date, remediation activities have focused on removing more than 200,000 tons of contaminated soil and sediment at off-site locations. This included the Acid Brook and Wanaque River projects. These projects included the remediation of more than 150 properties and the replanting of approximately 10 acres of wetlands.
- On-site remediation projects have been conducted since the early 1990s and include the remediation of 30 areas identified as being impacted by former manufacturing operations.
- DuPont installed a groundwater extraction/treatment system in August 1998 to prevent contaminated groundwater from leaving the site. Pumping draws water towards five on-site wells to prevent the water from leaving the site. The system then pipes the water to a treatment system for cleaning. Following treatment, the water is returned to the water table. Our technical team, together with scientists and resources from several U.S. universities, are completing a detailed evaluation of existing hydrogeologic and groundwater analytical data to assist us with evaluating potential groundwater remedial technologies that could be beneficial at the site.
- A groundwater technology evaluation field program has been implemented to determine if several existing remedial technologies can be used to remediate groundwater contamination associated with former manufacturing operations in the residential community adjacent to the site.
- Since June 2008, DuPont has offered systems to residents living within the groundwater plume area which address the potential vapor intrusion pathway. Our team continues to coordinate and install vapor mitigation systems.
- DuPont has established a groundwater technology evaluation field program to determine additional potential technologies to clean up groundwater contamination associated with former manufacturing operations.