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02 November 2007 AGE-NC Project No.06-1481 Page 2 of 4 The triangular parcel 153-111-01 was listed on the 1917 and 1950 Sanborn maps as a Standard Oil Bulk storage area with three large above-ground storage tanks listed as containing petroleum products. The 1957 aerial photograph shows the property with one tank on the east side of the property, the 1972 Sanborn map shows the east tank only with the designation "empty". Use of the property for fuel storage from at least 1917 to 1957 provides the potential of impacts to the subsurface of petroleum hydrocarbons from spills and from leaks in piping and dispensers. No tanks were visible on the site visit. The triangular parcel also included an in-ground scale and scale house, noted on the site visit, which provides the potential of impacts to the subsurface by hydraulic and other oils. SOIL PROBE BORING ADVANCEMENT On 26 July 2007, AGE advanced one soil boring (B-1) in the identified areas of concern (Figure 2) to assess for contaminant-impacted soil and ground water beneath the site. The soil boring was advanced utilizing a van-mounted Geoprobe 5400 direct-push probing unit equipped with 1.25-inch probing rods; the Geoprobe advances the soil probe boring using a hydraulic hammer to drive soil sampling tools to specified depths. Boring B-1 was advanced to a depth of 55 feet bsg; soil samples and a grab ground water sample were collected. The location of the soil boring is illustrated on Figure 2. SOIL AND GROUND WATER SAMPLE COLLECTION Soil samples were collected at 5-foot intervals beginning at 5 feet bsg to the total depth of the boring. Each sample was collected utilizing a Geoprobe soil sampling assembly loaded with four six-inch stainless steel sleeves. After collection, the ends of the second stainless sleeve was covered with Teflon sheets, capped and sealed with tape. The sleeve was labeled with soil boring location, depth, time, date and sampler's initials and then placed in a chilled container. Soil sample duplicates were extruded into plastic bags and field-screened for the presence of organic vapors using an organic vapor meter (OVM), equipped with a photo-ionization detector (PID). A grab ground water samples was collected from soil boring B-1 using a temporary PVC screen. A Geoprobe push-driven water sampling device was advanced two to three feet into the water bearing zone. The sample was collected using a Geoprobe water sampling assembly fitted with a new one-half inch 0.010-inch slotted temporary well screen. The grab ground water sample was extracted using inertial action by lowering Teflon tubing through the hollow center of the push rods into the screen section. A sufficient sample was collected to fill four 40-ml EPA-approved volatile organic analysis (VOA) vials and one 1-liter amber glass container. The ground water sample containers Advanced GeoEnvironmental, Inc.