Client Name: Confidential Client

Location Of Work: Site Investigation, Remedial Investigation, Remedial Design, and Remedial Action, Jersey City, New Jersey

Introduction: A total of six Underground Storage Tanks (USTs) were located at an operating facility in Jersey City, New Jersey. The USTs and associated piping were removed and decommissioned in 1992 with confirmed releases of petroleum products documented at four of the UST locations. Excel was retained to determine the extent of soil and groundwater contamination resulting from the UST releases, including the extent of free-phase product on the shallow water table at the waterfront site.

• Excel conducted a Site Investigation (SI) followed by a focused Remedial Investigation (RI) of soil and groundwater quality, including a hydrogeologic evaluation of the relationship between the groundwater and an adjacent tidally-influenced surface water body, Excel incorporated a review of local, state, and federal databases and the United States Coast Guard Spill Records into the evaluation of the environmental conditions at the site to maintain perspective regarding the necessary extent of soil and groundwater quality characterization required to obtain NJDEP approval of a final Remedial Action Workplan (RAW).

• Excel negotiated with the NJDEP for approval of a streamlined approach to characterization of soil quality based on the current and future use of the property as an operating industrial facility along with incorporation of engineering and institutional controls for future use restrictions at the site.

• The client chose to perform active soil removal and disposal of approximately 5,200 tons of both TSCA and Non-TSCA contaminated soils in conjunction with aggressive recovery of 1 million gallons of ground water and 2,000-gallons of free phase oil from the open excavation. Recovered oil and water were treated onsite using a 100-gallon per minute groundwater recovery and treatment system designed and operated by Excel.Treated water was reinjected back to the ground using two seventyfive feet deep reinjection wells. Excel acquired all necessary environmental permits, including a Discharge to Groundwater Permit, a Waterfront Development Permit and a Soil Erosion and Sediment Control Permit, and began remediation in June 1998.

Project Outcome: The soil remediation was completed in September 1998. The effectiveness of the Remedial Action (RA) technical approach has resulted in the virtual eradication of free-phase oil and restoration of soil quality as necessary to avoid a deed restriction on the property. Final project closure will be requested in the RA report after verification groundwater monitoring is complete. The technical approach designed and implemented by Excel, has enabled our client to focus on facility operations while progress on the remedial action continued.