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' 30 Jude 2004 <br /> i AGE-NC Project No 97-0343 <br />' Page 4of6 <br />' 2 4 COLLECTION OF GROUND WATER SAMPLES <br /> A water sample was collected from well MW-8 using the dedicated hose bailer after allowing the <br /> well to achieve a minimum 80%recovery of the pre-purge water volume or following one hour after <br /> the well had been purged Wells MW-5 through MW-7 did not recharge and no samples were <br /> collected Each water sample was transferred into three 40-m1 volatile organic analysis(VOA)vials <br />' containing 0 5 ml 18%hydrochloric acid as a sample preservative and into one 1-liter amber bottle <br /> without added preservative After collection,the samples were properly labeled,placed in a chilled <br /> container and transported under chain-of-custody to CTEL, a DHS-certified laboratory The one <br />' ground water sample was analyzed for <br /> • TPH-g and TPH-d in accordance with EPA Method 8015M, and <br />' • BTEX, MTBE, DIPE, ETBE, TAME, TBA, 1,2-DCA and EDB in accordance with EPA <br /> Method 8260B <br /> 3.0. FINDINGS <br /> Ground water elevation, flow direction, and gradient were determined from field data collected on <br />' 08 August 2003 The contaminant impact to ground water was quantified from the laboratory <br /> analytical data <br /> 31 STRATIGRAPHY <br /> I Based on the findings from boring MW-8 and other investigations to date, gravelly sand, sand and <br /> sand to silty sand were encountered at depths between 20 feet bsg and 25 feet bsg, 30 feet bsg and <br /> 90 feet bsg to 95 feet bsg Silty sand, sandy silt, silt and clay were observed at all other depths The <br /> boring log for monitoring well MW-8 is provided in Appendix B <br /> 32 ANALYTICAL RESULTS OF SOIL SAMPLES <br /> Seven soil samples were submitted for laboratory analysis from pilot boring MW8 TPH-g, TPH-d, <br /> BTEX and fuel additives were not detected at or above laboratory reporting limits in the soil samples <br /> submitted <br />' Advanced GcoEnvironmentai,Inc <br />