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' 31 October 2003 <br /> • AGE-NC Project No 01-0839 <br />' Page 2 of 7 <br />' For each sample,both ends of the leading or other selected sleeve were covered with Teflon sheets, <br /> capped and sealed with tape The samples were properly labeled,stored on ice and transported under <br />' chain-of-custody to Cal Tech Environmental Laboratories(CTEL),a State of California Department <br /> of Health Services (DHS)-certified analytical laboratory <br />' 212 Logging <br /> g� g <br />' Sall was extruded from the remaining brass sleeves and was screened for the presence of organic <br /> vapor using an organic vapor meter(OVM)equipped with a photo-ionization detector(PID Thermo <br />' Environmental 580A, 10 0 eV, calibrated to isobutylene), the OVM readings were recorded on a <br /> boring log The soil was then visually described on the boring log in accordance with the Unified <br /> Soil Classification System (see Appendix B) <br /> I <br /> 2 13 Well Completions <br /> I• Pilot borings MW 1 through MW4 were completed as ground water monitoring wells using two-inch <br /> diameter PVC casing with 0 020-inch slotted screen installed from approximately 60 feet to 80 feet <br />' bsg in all four borings with blank casing extended to the surface The filter pack (No 3 Lonestar <br /> sand)was installed from approximately 58 feet to 80 feet bsg A nominal 3--foot bentonite chip plug <br /> was then installed above the filter pack and hydrated The wells were then grouted to near the surface <br />' with portland cement Water-tight, traffic-rated well boxes were then installed over the wells <br /> As-built well diagrams are depicted on the boring logs in Appendix B <br /> l <br />' 2 14 Laboratory Y p Analyses of Soil Samples <br />' Selected soil samples were analyzed for <br />' • Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA <br /> Method 8015M, <br /> • Benzene, toluene, ethylbenzene and total xylenes (BTE&X) and methyl tertiary-butyl ether <br />' (MTBE) in accordance with EPA Method 8260B, and <br /> • The fuel additives di-isopropyl ether (DiPE), ethyl tertiary-butyl ether (ETBE), MTBE, <br />' tertiary-amyl methyl ether(TAME), tertiary butanol (TBA), 1,2-dichloroethane(1,2-DCA) <br /> and ethylene dibromide (EDB) in accordance with EPA Method 8260B <br /> Advanced GeoEnvironmental,Inc <br /> I <br />