Client:  Real Estate Developer

Project:  Underground  Storage Tank Closure at Former Municipal Airport

Location:  New Jersey

 

Description:  As part of a guaranteed fixed-price cleanup project, EWMA had the task of removing nineteen underground storage tanks (USTs) that were located throughout a 62-acre parcel of land that was formerly part of a municipal airport.  The developer was planning to turn the property into a mixed-use center that would consist of a hotel, movie theaters, and retail stores.  One of the developer’s main concerns for remediation of the property was the potential for soil and ground water contamination emanating from the UST systems.

The tanks ranged in size from 275-gallons up to 20,000-gallons, and contained fuel oil, diesel fuel, gasoline and aviation fuel.  As part of EWMA’s guaranteed fixed-price cleanup of the property, it was assumed that, along with removal of the tank systems, 4,000 tons of contaminated soil would require disposal.

EWMA prepared the appropriate closure notifications and removed all nineteen tank systems.  The tank decommissioning and removal activities were completed within one week after receiving authorization to proceed.  Results from soil sampling conducted during the removal of the tanks were below the State’s cleanup criteria, with the exception of one “hot spot” area, which was completely excavated.  The excavated soil was disposed of at a licensed disposal facility.  Further soil sampling in the “hot spot” area, after it had been excavated, indicated that the samples were below the State’s cleanup criteria.

A soils “No Further Action” letter (NFA letter) was issued for the parcel of land formerly containing the nineteen UST systems, allowing the redevelopment project to proceed without delay.  Remaining ground water contamination is currently being remediated via the use of a hydrogen peroxide-based In-Situ Oxidative Technologies, Inc. (ISOTEC) in-situ chemical oxidation (ISCO) remediation technique.