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1 <br />' 14 October 2004 <br /> AGE-NC Project No 03-1055 <br />' Page 2 of 6 <br />' second sleeve were covered with Teflon sheets, capped, and sealed with tape The sample sleeves <br /> were labeled, stored on ice, and transported under chain-of-custody to Cal Tech Environmental <br /> Laboratories(CTEL),a State of California Department ofHealth Services(DHS)-certified analytical <br />' laboratory Selected soil samples were analyzed for <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g) and as diesel (TPH-d) in <br />' accordance with EPA Method 8015 Modified, <br /> • Benzene, toluene, ethylbenzene, and total xylenes (BTEX) and methyl tertiary-butyl ether <br />' (MTBE) in accordance with EPA Method 8260B, <br /> • The fuel additives di-isopropyl ether(DIPE),ethyl tertiary-butyl ether(ETBE),tertiary-amyl <br /> methyl ether (TAME), tertiary butanol (TBA), 1,2-dichloroethane (1,2-DCA), and <br />' 1,2-dibromoethane (EDB) by EPA Method 8260E <br />' The sampling equipment was washed in an Alconox solution and rinsed with water prior to each <br /> sampling run to minimize cross-contamination <br /> 10 2 1 2 Logging <br />' Soil was extruded from a second brass sleeve The soil was then visually described in accordance <br /> with the Unified Soil Classification System (see Appendix B for boring logs) <br /> 2 13 Well Completions <br /> IPilot borings MW-6 and MW-7 were completed as ground water monitoring wells using 2-inch <br /> diameter PVC casing with a 0 020-inch slotted screen installed from approximately 5 to 20 feet bsg <br /> The filter pack (No 3 Lonestar sand) was installed from 4 to 20 feet bsg, and a nominal 1-foot <br /> bentonite chip plug was then installed above the filter pack and hydrated The wells were then <br /> grouted to near the surface with portland cement, and water-tight, traffic-rated well boxes were <br /> installed over the wells As-built well diagrams are depicted on the boring logs in Appendix B <br /> 2 1 4 Monitoring Well Development <br /> On 05 August 2004,monitoring wells MW-6 and MW-7 were developed utilizing a Waterra inertia <br /> Ipump with a steel bailer Ground water was purged from each monitoring well until ground water <br /> • was visually sediment free, approximately I 1 and 12 gallons of water were removed from wells <br /> MW-6 and MW-7, respectively Purged ground water was containerized in properly labeled DOT- <br /> Advanced GeoEnvironmental,Inc <br />