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Y <br />' 01 November 2002 <br /> -AGE-NC Project No 01-0865 <br />' Page 2 of 6 _ <br />' 2 2 s LOGGING <br /> Soil was extruded from a second brass sleeve and was screened for the presence of organic vapor <br />' 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 the <br /> boring log The soil was then visually described in accordance with the Unified Soil Classification <br />' System (see Appendix B) <br /> 23 WELL COMPLETIONS <br /> 1 <br /> Pilot borings MW5 through MW 10 were completed as ground water monitoring wells using <br />' two-inch diameter PVC casing with 0 020-inch slotted screen installed from approximately 4 feet <br /> to 14 feet bsg in borings MW5,MW9, and MW 10 and from approximately 50 feet to 60 feet bsg in <br /> bonngs MW6, MW7 and MW9 with blank casing extended to the surface EW1 was completed as <br />' a ground water extraction well using six-inch diameter PVC casing with 0 020-mch slotted screen <br /> installed from approximately 4 feet bsg to 19 feet bsg <br />� . The filter pack(No 3 or No 2112 Lonestar sand)was installed from approximately 2 feet to 14 feet <br /> bsg in MWS,MW9 and MWIO and from approximately 48 feet to 60 feet bsg in MW6,MW7 and <br />' MW8 A nominal 2-foot bentonite chip plug was then installed above the filter pack and hydrated <br /> The wells were then grouted to near the surface with portland cement Water-tight,traffic-rated well <br /> boxes were then installed over wells MW 5 and MW 6 and stand pipe well boxes were installed over <br />' wells MW7 through MW10 and EW1 As-built well diagrams are depicted on the boring logs in <br /> Appendix B <br /> 1 24 LABORATORY ANALYSES OF SOIL SAMPLES < <br />' Selected soil samples were analyzed for <br /> Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA y <br />' Method 8015 Modified, <br /> • Benzene, toluene, ethylbenzene and total xylenes (BTEX) and methyl tertiary-butyl ether <br /> (MTBE) in accordance with EPA Method 8020, and <br />' Fuel additives - di-isopropyl ether (DIPE), ethyl tertiary-butyl ether (ETBE), MTBE, <br /> tertiary-amyl methyl ether(TAME),tertiary butanol(TBA)by EPA Method 8260 Modified <br /> 1 Advanced GeoEnvlronmental,Inc <br />