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I28 January 2004 <br /> • AGE-NC Project No 97-0230 <br /> Page 2of8 <br /> I2 1 1 Soil Sample Collection and Analysis <br /> Discrete soil samples were collected from all five soil boring locations at 5-foot intervals,beginning <br /> I at 5 feet bsg Soil samples were collected utilizing a California modified split-spoon sampler loaded <br /> with three 2-inch by 6-inch brass sleeves The sampler was driven by dropping a 140-pound weight <br /> from a height of 30 inches The number of blows required to drive each 6-inch length of the sampler <br /> (blow counts) was recorded on boring logs by an AGE staff geologist <br /> Soil samples were preserved by covering both ends of the second brass sleeve with Teflon sheets, <br /> capping and sealing with tape Each preserved sample sleeve was labeled with soil boring location, <br /> depth, time, date and sampler's initials <br /> I Each preserved soil sample was logged on a chain-of-custody form,placed in a chilled container and <br /> transported to a California Department of Health Services(DHS)-certified laboratory, selected soil <br /> samples were analyzed for <br /> I • Total petroleum hydrocarbons as gasoline, diesel and motor oil (TPH-g, TPH-d and <br /> TPH-mo) in accordance with EPA Methods 5030/8015M or LUFT/EPA 8015B, <br /> I • - Benzene,toluene,ethyl-benzene and total xylenes(BTEX)in accordance with EPA Methods <br /> 5030/8020, <br /> I • 1,2-Dichloroethane(1,2-DCA),ethylene dibromide(EDB),methyl tert butyl ether(MTBE), <br /> tert-amyl methyl ether(TAME),di-isopropyl ether(D1PE),ethyl tert-butyl ether(ETBE)and <br /> tert-butanol (TBA)by EPA Methods 503018260, and <br />' • Total lead by EPA Method SW6010C <br /> IThe results of the soil analyses are contained in Table 1 <br /> I212 Logging <br /> Sample duplicates from the remaining sleeves were monitored for the presence of organic vapor <br />' using an organic vapor meter equipped with a photo-ionization detector (PID Thermo <br /> Environmental 580A, 10 0 eV, calibrated to isobutylene) and were described on boring logs using <br />' the Unified Soil Classification System (USCS) Boring logs are included as Appendix A <br /> I <br />' Advanced GeoEnvironmcntal,Inc <br /> I <br />