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r <br />' J f June 2004 <br /> AGE-NC Project No. 95-0106 <br />' oPage 3 of 6 <br /> In;.addition, selected soil samples v ere analyzed for.specifc gravity.(including soil;moisture), <br /> Porosity/penn6ability and total organic carbon. TOC in accordance with ASTM Methods D854, <br /> :.D5084 and D2974, "respectively: ; <br /> r <br /> 2:5. EQUIPMENT DECONTAMINATION <br />' All probing rods-used were cleaned prior to advancement in each probe boring location. The <br /> sampling;equipment- wasr washed:in an Alconox-soluiion and rinsed with water prior to each <br /> sampling run to avoid'cross-contamination- <br />' 2.6.• -.BOREHOLE ABANDONMENT <br /> At the'conclusion ofsoil-boring activities, the borings were permanently sealed to prevent vertical <br /> migration of,contaminants. Under EHD,oversight, the borehole was backfilled with cement slurry <br /> ' from the total depth to surface grade. <br /> 3.0. FINDINGS <br />' Soil descriptions and ground water depths were determined from field data, supplemented with soil <br /> descriptions from previous site investigations. Petroleum hydrocarbon impacts to soil and ground <br /> water was inferred from laboratory analysis of the soil and ground water samples. <br />' 3.1`. ;SOIL DESCRIPTIONS ._ <br /> Soil consisting ofbrown-to tan=colored clay, clayey'silt,or clayey sand were encountered from <br />' surface grade to between 13 and,17 feet bsg.(Figures 3'and.4). Below 13 to 17.feet bsg, the soil is ; <br /> composed,.predorninantly of fine to coarse sand and gravel,laterally,the coarser-grained.soil appear <br /> 'to be'localized in''a`northerly trend along the east'side of.the property(Figure 5): Soil boring logs are <br />' included in Appendix B. 'M ; <br /> Hydrocarbon-like odor was-detected iri soi sam esl'collected from,.approximately;;o 15 feet bsg Z. <br /> from boring•B 17, and from approximately to feet bsg from borings B 18-an$-B�76: 16 addition, ; <br />! :organic vapor` w`as!detected'by the OVM in sail samples collected from borings B16 through B22 <br /> {ElppendiX B): <br /> r ' advanced GeoEnvironmental,Inc` <br />