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24 October 1997 Y <br /> AGE-NC Project No 96-0235 <br />' Page 6 of 11 <br /> 8 1 , PROCEDURES <br /> The drums were numbered and opened It was found that drums number 5 and 7 contained low <br />' volumes of water,so their contents were added to other barrels priorlo, sampling <br /> Drums number 1, 2, 3, 4, 6, and 8, were sampled with a disposable bailer The sampled water was <br />' transferred into EPA-approved, 40-m1 VOA vials Sampled water from drums number 1 and 3 was, <br /> composited into a 1-liter amber bottle, as was water from barrels 6 and 8 The containers were <br /> labeled with drum number designations, date and timd of sampling, locality, and the sampler's <br /> Iinitials The labeled samples were stored In a chilled container for shipment under chain-of-custody <br /> to Alpha Analytical Laboratories, Inc (AAL), a state-certified analytical laboratory <br /> IThe six VOA-vial samples were composited by AAL and were analyzed In accordance with EPA <br /> method GCFID/5030 for TPH-g and in accordance with EPA method 602 for BTE&X In addition, <br /> the two composrted samples, D1&3 and D6&8,were further composlted and analyzed in accordance <br />' with EPA method 8015 modified for TPH-d and TPH-motor oil (TPH-mo) <br /> 82 RESULTS OF ANALYSIS <br /> Petroleum hydrocarbon analytes of interest were not detected in the samples analyzed The <br /> laboratory report (AAL Batch No 97-0411-012), quality control report and chain-of-custody form <br /> are included in Appendix D <br /> F r <br /> 9 0 MONITORING WELL INSTALLATION <br /> 9 1 DRILLING AND SAMPLING <br /> On 23 May 1997,two monitoring wells, MW-4 and MW-5, were installed on the property The pilot <br /> borings were advanced by Mitchell Drilling Environmental utilizing a CME 75 drill rig equipped <br /> I with 8-inch hollow-stem augers MW-4 was advanced to a depth of 33 feet bsg, MW-5 was <br /> advanced to a depth of 35 feet bsg <br /> Discrete soil samples were 'collected at 5-foot Intervals, beginning at 10 feet bsg, during <br /> advancement of both pilot borings, utilizing a California split-spoon sampler and brass sleeves The <br /> sampler was driven by,dropping'a 140-pound weight from a height of 30 inches The number of <br /> Iblows required to advance each 6-inch length of the sampler (blow counts) was recorded on boring <br />. logs by an AGE geologist (Appendix B) <br /> I <br /> Advanced GeoEnv:ronmental,Inc <br />