Based on the intended sale and adaptive reuse of the property, the site was being regulated under the New Jersey Department of Environmental Protection (NJDEP) Industrial Site Recovery Act (ISRA). Past onsite operations included the manufacturing of steel office furnishings and the manufacturing of electric motors for the defense industry. ESI performed a preliminary assessment/site investigation (PA/SI) of the property and quickly identified over 40 Areas of Concern (AOCs). We also conducted investigations, including soil cores and groundwater wells to delineate both soil and groundwater impacts and additional investigations to address vapor intrusion at over two dozen residential properties in the surrounding residential neighborhood.    

Based on the results of the investigations, over 6,500 tons of contaminated soil was excavated and safely disposed of. Due to constraints related to maintaining the integrity of the onsite buildings, removal of all soil contamination was not possible. Soil contamination remaining on site will be Deed Noticed once all other ISRA activities have been completed. In addition, over 2,000 tons of impacted soil was removed from a public park and a residential property adjacent to the site. The impacts at the park and residential property were due to the site’s historic operations. The establishment of a Deed Notice was not an option for the park as dictated by the Township.

Previous operations had also impacted the groundwater beneath the site and a limited area offsite. The results of ESI’s groundwater model indicate that two fully penetrating recovery wells and a shallow horizontal recovery well would effectively remove the contamination and prevent further contaminant migration. The treatment system consisted of a shallow tray air stripper followed by activated carbon polishing. Treated groundwater was discharged under a NJDEP NJPDES permit. This system has proven successful in reducing contaminant concentrations by several orders of magnitude.