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1 <br />' 01 November 2005 <br /> AGE-NC Project No 02-0950 <br />' Page 5 of 9 <br />' Soil samples were collected ahead of the drill bit using a California modified, 18-inch split-spoon <br /> sampler loaded with three pre-cleaned,2-inch by 6-mch brass sleeves The samples were collected <br /> from the pilot bonngs at 5-foot intervals, beginning at 5 feet bsg, using a 140-pound hammer to <br />' advance the sampler The number of blows required to advance the sampler over each 6-inch <br /> increment of the 18-inch sampling interval was recorded on the boring logs After sample recovery, <br /> both ends of the middle sleeve were covered with Teflon sheets, capped, and sealed with tape The <br />' sample sleeves were labeled, stored on ice, and transported under chain of custody to CTEL for <br /> analysis for the constituents listed in Section 2 1 2 <br />' Sampling equipment was washed in an Alconox solution and rinsed with water prior to each <br /> sampling run to minimize cross-contamination <br />' 2 3 2 Logging <br />' Soil was extruded from a remaining brass sleeve and visually described in accordance with the <br /> USCS Boring logs are included in Appendix B <br />' • 2 3 3 Well Completions <br />' Pilot borings MW4 and MW5 were completed as ground water monitoring wells of the same <br /> designations using 2-inch diameter polyvinylchloride(PVC)casing with a 0 020-inch slotted screen <br />' installed from 15 feet to 35 feet bsg The filter pack(No 3 Lonestar sand)was installed from 13 feet <br /> to 35 feet bsg in well MW-4 and from 13 feet to 36 5 feet bsg in well MW-5, and a nominal 2-foot <br /> bentonite chip plug was installed above the filter pack and hydrated The remaining annular space <br />' was filled to near surface grade 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 3 4 Monitoring Well Development <br />' On 29 July 2005, monitoring wells MW-4 and MW-5 were developed utilizing a Waterra inertia <br /> pump and steel bailer Ground water was purged from each monitoring well until it was visually <br /> sediment-free, approximately 28 gallons of water were removed from each well Purged ground <br />' water was containerized in properly labeled, DOT-approved 55-gallon drums and stored on-site <br /> Monitoring well development field logs are provided in Appendix D <br />' Advanced GcoEnvironmental,Inc <br /> 1 <br />