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08 April 2003 AGE-NC Project 02-0946 Page 4of7 32 LOGGING ISoil was extruded from a second brass sleeve and was screened for the presence of organic vapor using an organic vapor meter (OVM) equipped with a photo-ionization detector (PID Thermo Environmental 580A, 10 0 eV,calibrated to isobutylene), and the OVM readings were recorded do a boring log-The soil was then visually described on the boring log In accordance with the Unified Soil Classification System (see Appendix A) 3 3 WELL AND BORING COMPLETION - Pilot borings MW-1 through MW-3 were completed as ground water monitoring wells using two-inch diameter PVC casing with 0 020-inch slotted screen installed from approximately 20 to 45 feet bsg and with blank casing extended to the surface The filter pack(No 3 Lonestar sand)was installed from 23 feet to approximately 45 feet bsg A nominal 2-foot bentonite chip plug was then installed above the filter pack and hydrated The wells were then grouted to near surface grade with portland cement Water-tight, traffic-rated well boxes were then installed over the wells As-built well diagrams are depicted on the boring logs in Appendix A 3 4 LABORATORY ANALYSES OF SOIL SAMPLES Selected soil samples were analyzed for o TPH-d in accordance with EPA Method 8015 Modified, and • BTEX and MTBE in accordance with EPA Method 8021 B 35 MONITORING WELL DEVELOPMENT On 21 February 2003, monitoring wells MW-1 through MW-3 were developed utilizing a Watera inertial pump Groundwater was purged from each monitoring well until the produced groundwater was visually sediment free Approximately 30 gallons of water were removed from each well Purged ground water was contamenzed in properly labeled DOT-approved model 17H 55-gallon drums and was stored on--site Field sheets and data are included In Appendix B I Advanced GeoEnwronmental,Inc