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' 11 August 1997 AGE-NC Project No 95-0173 Page 3 of 10 ' equipped with 8-inch diameter hollow stem augers Monitoring wells MW-5 through MW-9 were advanced to maximum depths of 45-feet bsg, SVE wells VW-1 and VW-2 were advanced to maximum depths of 35-feet bsg During drilling activities, soil cuttings were stockpiled on plastic sheeting in an area at the site lacking public access The locations of MW-5 through MW-9, as well as VW-1 and VW-2 are depicted on Figure 2 Discrete soil samples were collected at 5-foot intervals, beginning at 15-feet bsg from 1\4W-5 and MW-9, beginning at 5-feet from MW-6 through MW-9, and beginning at 20-feet bsg from VW-1 and VW-2 Samples were collected utilizing a California split-spoon sampler and brass sleeves The sampler was driven by dropping a 140-pound weight from a height of 30-inches The number of blows required to drive each 6-inch length of the sampler (blow counts) was recorded on boring logs by an AGE staff geologist Upon sample retrieval, the middle brass sleeve was removed from the sampler Both ends of the sleeve were covered with Teflon sheets, capped and sealed with duct tape Each soil sample was labeled with boring location, depth, time, date, and sampler's initials The samples were placed in a chilled container and transported under chain-of-custody protocol to a California state-certified laboratory for analysis of TPH-g, TPH-d, BTE&X and MTBE The results of the laboratory analysis are contained in Table 1 Two selected soil samples (VW-1 at 25-feet, MW-7 at 30-feet) were submitted to Cooper Testing analyzed for permeability, porosity and percent organic content in accordance with ASTM method D-5084 The results of the laboratory analysis are contained in Table 3 -Analytical Results of Fate Evaluation Analysis The laboratory reports are included in Appendix B One selected soil sample (VW-2 at 25-feet) was submitted to A Keith Kaufman for microbial enumeration and physicochemical analysis to determine feasibility of bioremediation at the site Results of the bioremediation analysis are included in Appendix C I Furthermore, two selected soil samples (VW-1 at 30-feet, VW-2 at 20-feet) were submitted to APL Inc for MTBE analysis in accordance with EPA method 8260 Results of the laboratory analysis are depicted in Table 1 The laboratory reports are included in Appendix D 2 2 2 EQUIPMENT DECONTAMINATION Hollow stem augers were steam cleaned prior to boring advancement Sampling tools and brass sleeves used for sample collection were thoroughly washed with a solution of Alconox, and thoroughly rinsed with clean tap water prior to each sampling run Following drilling activities, rinseate generated from decontaminating the equipment was placed in properly labeled D O T model 17H 55-gallon drums and stored on-site in an area lacking public access