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07 April 2000 <br /> AGE-NC Project No. 99-0653 <br /> Page 2 of 3 <br /> dibromide (EDB) and TPH as gasoline were not detected in the soil samples collected. <br /> According to information provided to AGE by CH2M Hill, ground water depth in the area of the <br /> former UST is approximately 5 feet below surface grade (bsg); ground water flow direction is <br /> generally southeast. <br /> PROCEDURES <br /> On 07 March 2000, representatives of AGE advanced a single soil boring near the center of the <br /> former UST excavation. The boring was advanced to a total depth of 6 feet bsg using a 4-inch <br /> diameter hand auger. Ground water was encountered in the boring at a depth of approximately 3 feet <br /> bsg. <br /> Soil samples were collected at 2.5 feet(B 1-2.5)and 6.0 feet(B 1-6.0)bsg using a metric soil sampler <br /> loaded with two clean 2.5-inch by 3-inch brass sleeves. After retrieval, the ends of the lead brass <br /> sleeve were covered with Teflon sheets, capped and sealed with tape. The samples were placed in <br /> a chilled container and transported under chain-of-custody to McCampbell Analytical, Inc. (MAI) <br /> in Pacheco, California. <br /> After collection of soil samples, a representative of AGE collected one ground water sample from <br /> well KP-3,located approximately 250 feet east of the former UST area. Well KP-3 had been purged <br /> and stabilized by representatives of CH2M Hill on 06 March 2000. <br /> The water sample was collected from the well using a disposable polyethylene bailer. Water from <br /> the bailer was transferred into four 40-m1 VOA vials containing 0.5-m1 of hydrochloric acid as <br /> preservative and into one I-liter amber glass container.The properly labeled sample containers were <br /> placed in a chilled cooler and delivered to MAI under chain-of-custody. <br /> Soil sample B1-6.0 and the ground water sample from KP-3 were analyzed for: <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g) and diesel (TPH-d) in <br /> accordance with EPA Method 5030/8015m; <br /> • Benzene,toluene,ethyl benzene and xylenes(BTEX)in accordance with EPA Method 8020; <br /> and <br /> • Fuel oxygenating compounds,including methyl tertiary-butyl ether(MTBE), ethyl tertiary- <br /> butyl ether (ETBE), di-isopropyl ether (DIPE), tertiary amyl methyl ether (TAME) and <br /> tertiary butanol (TBA) in accordance with EPA Method 8260. <br /> Advanced GecEnviron mental,Inc. <br />