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w April 15, 2009 2 Reference No. 17386-009 2.0 CURRENT CONDITIONS Based on the information gathered during a Phase I ESA dated February 23, 2009, the following environmental concerns may affect the subject property, for which subsurface investigation is proposed to be conducted. • Oil/Water Separator: According to Site personnel and based on observations made by EEC, one active, three-chamber, oil/water separator is situated outside of the car wash area and west of the service area and receives wastewater discharges from the catch basins floor drains in the car wash area and service area. A sanitary sewer manhole is present in-line with the oil/water separators; therefore, it is likely that effluent from the oil/water separator discharges to the municipal sanitary sewer. During EEC's Site inspection, Ashbury Environmental of Union City pumped and cleaned out the oil/water separator. Once completed, the interior condition of the unit was visually inspected evaluated from the surface, and all three chambers of the unit appeared to be in good condition with no obvious signs of cracks or corrosion. However, the inspection was limited to the interior of the oil/water separator and as such, the condition of buried appurtenances such as piping, connections, seals, etc., could not be evaluated. Potential impact to Site soils and/or groundwater could not be determined. • Abandoned In-Ground Hydraulic Lifts: Based on observations during the Site inspection, there are currently five inactive in-ground hydraulic lifts in the service area in the southeast portion of the Site building. In addition, concrete patches were observed in service bays 15 and 16 that may indicate past use and removal of in-ground hydraulic lifts. No information was available regarding draining, decommissioning, or removal associated with the inactive in-ground hydraulic lifts or the concrete patches. Therefore, all of the lifts are assumed to be abandoned. Potential impact to Site soils and/or groundwater could not be determined. • Absorbent Material and Rags Near Transformer: Based on observations made by EEC, absorbent material and rags are near the pad-mounted transformer. Site personnel were not aware of the absorbent material and rags until the time of the Site inspection and did not know the reason they were present. No staining was present in the area of the transformer and the concrete pad appeared to be in good condition; however, the condition of the concrete beneath the absorbent material and rags could not be evaluated. Based on the time of Site development and the age of the Site buildings (circa 1986), polychlorinated biphenyls (PCBs) would not be expected to be associated with the transformer; however, this cannot be determined without laboratory analysis. Potential impact to Site soils and/or groundwater could not be determined. 3.0 PROPOSED PHASE II ESA ACTIVITIES To address the above concerns, EEC proposes the following voluntary subsurface investigation activities. Encore Environmental Consortium, LLC