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I 17 July 1992 (GeoAudit CV 42F5-1. 26) ' Page 2 of 6 On 3 February 1992, twelve soil samples (N1 - N4 , S1 - S4 , E1, E2 , W1 and W2) were collected from the walls of the excavation (see Figure 3 - Soil Sample Location) at the direction of Mary Meays of the SJ PHS/EHD. The samples were collected from the excavator bucket using a metric soil sampler preloaded with two clean, 2 . 5 by 3 inch brass tubes. The ends of the lead tube were covered with aluminum sheets, capped and sealed with tape. The samples were stored on ice and transported to Western Environmental Science and Technology (WEST) under chain-of-custody. The soil samples were analyzed for total petroleum hydrocarbons (TPH as gasoline and TPH as diesel) and purgeable aromatics (BTE&X) in accordance with EPA methods 8015 and 8020 and for organic lead. One water sample was also collected from the floor of the excavation. The sample was collected using a plastic disposable bailer. The sample was placed in a 1-liter glass bottle sealed with a TFE-lined cap. The water sample was analyzed for TPH as diesel in accordance with EPA method 8015. TPH, BTE&X and organic lead were not detected (ND) in any of the I soil samples. TPH as diesel was detected at 590 gg/L (ppb) in the water sample collected from the excavation. The analytical results are summarized in Table 1 . The laboratory report and chain of custody for the soil and water samples are attached in Appendix A. MONITORING WELL INSTALLATION On 15 May 1992 , two 4-inch diameter monitoring wells were installed at the site (see Figure 2 - Site Plan) . Each well was drilled to a depth of 20 feet using a truck mounted 8-inch hollow-stem auger rig. The Acker AD-2 drill rig and two man crew were supplied by West Hazmat Drilling Corporation. Discrete soil samples were collected ahead of the drill bit using a split-tube sampler loaded with three pre-cleaned 2 . 5 by 6 inch brass tubes. The samples were obtained at five foot intervals, using a 140 pound hammer. To avoid cross contamination, the sampling equipment was washed in a tri-sodium phosphate (TSP) solution and rinsed twice with water prior to each sampling run. For each sample, the lead tube was screened for the presence of volatile organic hydrocarbons with the photo-ionization detector. Both ends of the tube were then covered with aluminum sheets, capped and sealed with tape. The samples were stored on ice pending transmission to a state certified laboratory (Alpha Analytical