ARCHIVED REPORTS_PHASE II ENVIRONMENTAL SITE ASSESSMENT

Home Browse Search

WGR • Southwest, IIun(c. were designed to evaluate the lateral and vertical extent of the automotive debris on the Learner site. Excavations S-1 through S-9 and F-1 through F-2 investigated the extent of the debris adjacent to the south boundary of the Learner site(see Figure 2). 5.4.12 Vehicle and Tire Storage Numerous trucks, automobiles and other vehicles in various stages of disrepair were present on site during the Phase I site review. Some were noted to have their engine hoods and doors open, and many had flat or missing tires. A damaged tanker truck was among the vehicles observed. Records indicate that oil and hydraulic fluid releases from the fleet of trucks used to transport scrap metal to the docks has been a past concern. Because of the potential for fuel, oil, battery acid, transmission fluid and other automotive fluids to leak onto the ground surface or contribute pollutants to storm water runoff during periods of precipitation,the old vehicles were considered a potential source of contamination and thus an REC. Additionally, a large number of rubber tires were observed to be stockpiled on site during the Phase I. When the field work for the Phase II commenced, the tire stockpiles and old vehicles were no longer present on the property. Borings B-17 and B-18 were situated in areas where old vehicles were observed during the Phase I site visit. • 5.4.13 Adjacent Petroleum Terminal The ST Services property adjacent to the Learner facility on the northwest has been a petroleum terminal since at least 1982. USTs have historically been present on the ST Services site, and records obtained during the Phase I indicated a gasoline and diesel release had occurred on the property and a feasibility study was ongoing for remediation. The current status of the ST Services site is not known. Groundwater contamination identified on the ST Services site included benzene, toluene, ethyl-benzene and xylenes (BTEX) and MTBE. Assuming a southeast groundwater flow direction, as determined by prior monitoring of the Learner site, the ST Services Terminal is up gradient of Learner and could thus pose a potential threat to underlying groundwater quality. It was therefore identified as an REC. Although monitoring wells were not installed as a part of this Phase II ESA,grab groundwater samples were recovered from all but one of the borings. Borings B-1 and B-2 were located adjacent to the boundary with ST Services, and groundwater grab samples were recovered from these borings. • 704. PRI.05 13 July 21, 2008