ENVIRONMENTAL STATUS
VT Department of Environmental Conservation

Active Hazardous Waste Site #: 87-0175
Hazardous Waste Generator #: VTD000791871 (ExxonMobil Terminal ; Large-Quantity Generator)
Hazardous Waste Generator #: VTR000500090 (Environmental Products & Services of Vermont; Conditionally-Exempt Generator)
UST Facility ID #: 6584140

Contact:
Richard Spiese
Site Manager, VTDEC Waste Management Div.
103 South Main St., West Bldg.
Waterbury, VT 05671-0404
802-241-3888
richards@dec.anr.state.vt.us

Consultant:
Groundwater & Environmental Services, Inc.
Kennedy Business Park
429B Hayden Station Road
Windsor, CT 06095
Glen D. Stefaniak, Project Geologist, Project Manager

An ExxonMobil bulk petroleum facility presently operates at this waterfront property, consisting of multiple above-ground storage tanks and a fuel dispensing rack accessible by rail [1]. From a review of site files at the VTDEC offices in Waterbury, it appear that this site was first listed as an active hazardous waste site in 1987, following the report of petroleum-impacted water being discharged from the facility to Lake Champlain. Water was being directed to the Lake (under State of Vermont discharge permits) from bermed areas surrounding the tanks, following treatment by oil-water separator [2]. More, recently, in late 1994, a release(s) of petroleum was detected at this terminal as free product which appeared in a groundwater collection sump at the center of the facility [1]. This groundwater collection sump was reportedly installed to control the elevation of shallow groundwater at the site. Recovery of petroleum product from the sump was initiated immediately, and an investigation to determine the source(s) of the release was undertaken. Investigations revealed the likely source of the release as the former vapor recovery system. An older source(s) of petroleum contamination was also identified during investigations, as highly weathered petroleum staining and odors were noted in shallow soil borings along the northern half of the terminal [1].

Product in the groundwater collection sump was periodically measured and extracted with a vacuum truck. Product thicknesses declined to a sheen by November of 1995. Aside from a discrete occurrence of measurable product thickness (1/8 inch) in May of 1996, subsequent weekly to biweekly monitoring detected only sheens of product. Sump monitoring / product extraction was suspended after October of 1996 [1].

Annual groundwater monitoring is presently tracking expected declines in groundwater contamination at this site. Residual petroleum impacts to soil and groundwater will likely remain for some time [1].

A VTDEC database of pulled USTs [3] notes that the following four USTs were removed from this property (removal dates not provided):