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1 <br />' 05 September 2000 <br /> AGE-NC Project No 99-0645 <br /> Page 3 of 5 <br />' 3.0. PROCEDURES <br /> 3 1 SOIL EXCAVATION AND SAMPLING <br /> 1 Soil excavation and soil sampling activities were performed on 21 March 2000 The hydrocarbon- <br /> impacted soil was removed with an excavator outfitted with a 2 45 cubic-yard bucket <br />' Clean backfill material used during the backfilling of the initial UST excavation was excavated and <br /> stockpiled on-site Following the removal of the clean backfill material,the excavation was enlarged <br /> and deepened to an approximate depth of 22 feet bsg Figure 3 shows the Iimits of the excavation and <br /> locations for soil samples <br />' During the excavation procedures,the soil was screened for the presence of organic vapor using an <br /> organic vapor meter(OVM)equipped with a photo-ionization detector(PID Thermo Environmental <br /> 580A, 10 0 eV, calibrated to isobutylene) <br /> Soil samples were collected from the floor sam le F-1 <br /> p { p ) and each side wall at a depth of 16 feet bsg <br /> (samples NW, SW, WW, EW, Figure 3) The samples were collected from the bucket of the <br /> excavating equipment using a metric volume core sampler loaded with one 6-mch long by 2-inch <br /> diameter brass sleeve The sleeve was then removed from the sampler and the exposed ends of the <br /> I sample sleeve were covered with Teflon sheets, capped and sealed with tape Soil samples were <br /> collected from the soil stockpile by digging approximately one foot into the soil stockpile Four soil <br /> samples were also collected from each stockpile by pressing a brass sampling sleeve into the soil <br /> stockpile All samples were placed in a chilled container and transported under chain-of-custody <br /> protocol to McCampbell Analytical, Inc (MCAI), a California certified laboratory <br /> On 22 March 2000, approximately 195 metric tons of excavated soil was transported from the site <br /> and disposed at Forward Landfill The manifests with weighmaster certificates etc are attached in <br /> Appendix A In addition, the excavation was backfilled and compacted with clean fill sand <br /> 32 ANALYTICAL PROTOCOL <br /> The samples were analyzed for the following constituents <br /> - TPH-g in accordance with EPA Method 8015 Modified, <br /> - BTE&X in accordance with EPA Method 8020, and <br /> - Fuel oxygenates including methyl tert-butyl ether(MTBE),tertiary-butyl alcohol(TBA),di- <br /> isopropyl ether (DIPE), ethyl tertiary-butyl ether (ETBE) and tertiary-amyl methyl ether <br /> (TAME) in accordance with EPA Method 8260 Modified <br /> Advanced GeoE,nvironmental,Inc <br /> I <br />