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Design-Build Soil and Groundwater Treatment System
Liberty State Park

THE CHALLENGE
A subsurface diesel fuel plume in Liberty State Park in Jersey City, New Jersey.

THE SOLUTION
HCR designed and built a “Pump and Treat System,” consisting of groundwater recovery wells, underground piping, and underground electrical service. The treatment system contains an oil/water separator with a holding tank. Permitted discharge is to groundwater through an infiltration gallery. Due to heavy tourist traffic in Liberty State Park, HCR constructed a block building that fit the ambiance of the other surrounding structures.

THE RESULT
From start to finish the construction took six months, and HCR now provides Operation & Maintenance at the facility, including system maintenance, discharge compliance sampling and groundwater sampling.

Site Description
Within Liberty State Park is the Greenway Development Area, which includes a 2-acre parcel of land containing oil-contaminated soils.

Contaminant/COCs
Fuel Oil

Primary Receptor
Groundwater beneath County Park

Trigger Event
A soil investigation in May of 1995 characterized the fill and fuel oil product extent

System Description
A pump and treat system that includes four recovery wells pumping to an oil/water separator. The water is treated using solids removal and two 1000# LGAC units. The water is discharged to a reinjection gallery.