Client Name: Borough of Fort lee

Location of Work: Fort Lee, New Jersey

Scope of Work: Involved environmental consulting services for a confirmed 2,000-gallon Underground Storage Tank (UST) gasoline release. Based on the data generated during the Remedial Investigation (RI), a Remedial Action Workplan (RAW) was prepared and implemented which included vacuum de-watering to lower the shallow water table in conjunction with the application of soil vapor extraction (SVE) to the newly created vadose zone.

The vacuum dewatering/SVE remedial treatment system remained on-line until the analytical results indicated that the system had effectively removed volatile organic compounds (VOCs) from the vadose zone soils. Verbal approval was obtained from the NJDEP prior to shutdown of each component of the remediation system. A Natural Remediation Compliance Program was initiated following the shutdown of the remedial treatment system.

Due to offsite migration of impacted groundwater, and the densely populated and topographic characteristics of the impacted area, community relations were of significant concern to our client. Several residential "high rise" developments were located downgradient of the impacted site. As a result, an integral component of Excel's scope of work included one-on-one review of the groundwater analytical data and the proposed remedial approach with management representatives of four residential development buildings and other members of the local community. Excel's community relations efforts also included the notification of approximately 80 residents located downgradient of the impacted site.

Project Outcome: A technical proposal for a CEA to address post-remediation groundwater concentrations was approved by the NJDEP. The conditions of the CEA approval include annual verification of groundwater quality monitoring and reporting for each year of the CEA. As a result of CEA establishment in lieu of active groundwater remediation, this client was able to realize a significant decrease in potential project related costs.