Raritan Bay Slag Superfund Site Community Advisory Group (CAG)
  CAG Meeting Info  

Next Regular Meeting: Tuesday, June 14, 2016 6:30pm, Laurence Harbor Recreation Building

Normally meetings are held:
2nd Tuesday of every month, unless change announced by CAG
6:30 PM - meetings usually run two hours plus or minus

Recreation Building (behind Hoffman's Drug Store) Waterfront Park, Laurence Harbor, NJ 08879

All meetings are open to the public. We encourage all citizens to join us and participate in the cleanup of our community.

Welcome to the Raritan Bay Slag CAG Web Site

What is the Raritan Bay Slag Superfund Site?

The site runs from the north/western jetty of Cheesequake Creek inlet in Sayreville to the Margaret’s Creek / Seidlers’ Beach area between Laurence Harbor and Cliffwood Beach in Old Bridge Township. The site is along the waterfront, extending a short distance into the bay and in some spots inland. It includes the entire Old Bridge Waterfront Park in Laurence Harbor.

The contamination consists mostly of refinery slag and battery casings that contain higher than acceptable levels of lead, arsenic, antimony, chromium and other heavy metals.

The slag was used as erosion control along the Laurence Harbor waterfront “seawall” and was used as a building material in the western jetty of the Cheesequake Creek inlet. Contaminants can also be found inland around the Margaret’s Creek area.

Where did the contamination come from?

According to locals, the contaminants were brought in during the early 1970’s.

NL Industries (formerly National Lead) has been named as a Potentially Responsible Party by the EPA.

What is the Community Advisory Group (CAG)?

Local residents and stakeholders formed the CAG early in 2010 to be the liaison between the Environmental Protection Agency (EPA) and the local community.

Who is on the CAG?

Current members of the CAG include local residents, an Old Bridge councilman, local environmental groups and Congressman Pallone’s office.

Who attends the meetings?

Anyone is welcome to attend. Representatives from EPA usually attend the meetings. There may be presentations from scientists, engineers, government officials, potentially responsible parties (alleged former polluters), environmental groups and local residents and business owners.

When are meetings held?

Meetings are held the second Tuesday of the month at 6:30 pm in the Old Bridge Township recreational building in the Laurence Harbor Waterfront Park.

*Please check the website for changes in time and location.

This is a lead slag kettle-bottom.

What does the contamination look like?

The slag looks like brownish, rounded, pitted rock. It is very heavy due to its high lead content. The battery casings look like weathered black plastics.

Is the contamination dangerous?

The EPA has posted signs and put up fences to keep people away from the contaminants.

The main risk is from ingesting the contamination. Children and pregnant women have the greatest risk of being affected. Local children were tested and did not show elevated levels of contamination. The contamination is not airborne, and the groundwater and drinking water are not affected. Some aquatic plants and animals from the area show elevated levels of contaminants.

What is the cleanup plan?

All materials with lead concentrations above 400 parts per million (ppm) will be removed to an off-site approved toxic waste storage facility. Although the details have not been determined, it is likely that removal will begin at Seidler’s Beach / Margaret’s Creek and gradually move north and west in order to avoid recontamination of cleaned areas by the prevailing longshore current.

Who will pay for the cleanup?

NL Industries has been named as the Potentially Responsible Party, so they are responsible for executing the cleanup under EPA oversight.

If NL Industries refuses to cooperate with the EPA, then the EPA will execute the cleanup using public funding, and NL Industries could be liable to repay the EPA three times the cost.

Is NL Industries cooperating?

EPA has met with NL Industries to discuss keeping the lines of communication open. NL Industries has sued several other parties to share in the cleanup responsibility. The EPA says that NL’s lawsuits have no effect on the cleanup schedule.

How does the Superfund Process work?


The EPA began investigating this site in 2008 when NJDEP found contamination while evaluating the Margaret’s Creek area for preservation.


Fencing and signs were put up in 2009. After Hurricane Sandy the Emergency Response team removed rubble from the park and re-tested for lead in areas accessible to the public. The team is currently working on seawall stabilization by the gazebo.


The site was added to the NPL (became a “Superfund Site”) in 2009.


In 2012 the EPA completed testing and top-level evaluation of cleanup options.


In Sep 2012 the EPA announced its Proposed Plan and Preferred Alternative: to remove contaminated material with more than 400 ppm of lead off-site. In Oct 2012 EPA held a public meeting and took public comment.


In June 2013 the EPA filed a Record of Decision legally adopting their PREFERRED ALTERNATIVE.


EPA is currently negotiating with NL Industries on how the cleanup will proceed. Detailed remediation plans will be drawn up and then cleanup may begin. EPA estimates that this phase, from negotiation to completion, may take 5-7 years, and is dependent on a funding source.



Since the remedy calls for removing all lead above 400 ppm off-site, there should be no need for further monitoring after the cleanup.


The park will no longer be a Superfund Site.


After the cleanup the parks should return to their original uses as recreational and open space.

Want more information?

Sign up for email updates from the CAG at

Sign up for notifications from the CAG at http://www.raritanbayslag.org/contact/info.htm

Find us on Facebook at:

Raritan Bay Slag

Community Advisory Group


EPA’s documents can be found in the

Old Bridge and Sayreville Public Libraries and at


You may also contact the EPA directly:

Pat Seppi, (646) 369-0068 seppi.pat@epa.gov



Copyright 2014 Raritan Bay Slag Community Advisory Group (CAG). All rights reserved.
*The Raritan Bay Slag Community Advisory Group (CAG), an independent, community-based group was formed to participate in the U.S. Environmental Protection Agency's (USEPA's) work at the Raritan Bay Slag site. While the CAG makes every effort to organize and present information not created by the CAG as correctly as possible, only documents created by the CAG represent the views and work of the CAG. In addition, no official endorsement by the CAG should be inferred from the information presented on this site. All works not created by the CAG are the works of their respective organizations including USEPA, any other federal or state agency, contractors, potential or named responsile parties, and various stakeholders and interest groups. Official USEPA Raritan Bay Slag Superfund Site information can be found here; http://www.epaosc.org/site/site_profile.aspx?site_id=4951 and here: http://www.epa.gov/region2/superfund/npl/raritanbayslag/