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' 20 January 2005 <br /> • AGE-NC Project No 04-1045 <br />' Page 2 of 7 <br />' The sample sleeves were labeled, stored on ice and transported under chain of custody to Cal Tech <br /> Environmental Laboratories (CTEL), a State of California Department of Health Services (DHS)- <br /> certified analytical laboratory <br /> iThe sampling equipment was washed in an Alconox solution and rinsed with water prior to each <br /> sampling run to minimize cross-contamination <br /> I <br /> 212 Logging <br />' Soil was extruded from a second brass sleeve and screened for the presence of organic vapor using <br /> an organic vapor meter (OVM) equipped with a photo-ionization detector (PID Thermo <br />' Environmental 580B, 10 0 eV, calibrated to isobutylene), the OVM readings were recorded on the <br /> boring log The soil was then visually described in accordance with the Unified Soil Classification <br /> System (see Appendix B) <br />�. 2 1 3 Well Completions <br /> Pilot boring MW 1 was completed as a ground water monitoring well using 2-inch diameter PVC <br />' casing,with 0 020-inch slotted screen installed from approximately 10 to 30 feet bsg, Pilot borings <br /> MW2 and MW3 were completed in a similar manner with slotted screen installed from <br /> approximately 15 to 35 feet bsg A filter pack (No 2112 Lonestar sand) was installed from total <br />' depth to 2 feet above the slotted screen, and a nominal 2-foot bentonite chip plug was then installed <br /> above the filter pack and hydrated The wells were then grouted to near the surface with portland <br /> cement, and water-tight, traffic-rated well boxes were installed over the wells As-built well <br />' diagrams are depicted on the boring logs in Appendix B <br />' 2 14 Laboratory Analysis of Soil Samples <br /> Selected soil samples were analyzed for <br /> I • Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA <br /> Method 8015 Modified, <br /> • Benzene, toluene, ethylbenzene and total xylenes(BTEX) in accordance with EPA Method <br /> 8260, <br /> • The fuel additives di-isopropyl ether (DIPE), ethyl tertiary-butyl ether (ETBE), methyl <br /> • tertiary-butyl ether (MTBE), tertiary-amyl methyl ether (TAME), tertiary butanol (TBA), <br /> Advanced GcoEnvironmentat,Inc <br />