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05 October 2000' ; <br /> AGE-NC Project No. 95-0197 <br /> Page 6 of 6 <br /> Analytical results of ground water samples are summarized"in Table 2. The laboratory:,report <br /> (McCampbell•Analytical Inc. Lab, ID 46084 and 46085) and,chain-of custody fire included in <br /> Appendix B. ` <br /> , . <br /> 5.0. _ SUMMARY AND, CONCLUSIONS - <br /> Based upon data collected on 25 and 28 August 2000, AGE concludes the following: <br /> TPH-d'was detected in the 20-foot soil sample collected from B-7•at a'concentration of 1.8 <br /> mg/kg. <br /> The,vertical extent of petroleum hydrocarbon-impacted soil does not extend past 20 feet bsg _ <br /> east;.west, north;and,south of the former UST. <br /> The horizontal extent of petroleum hydrocarbon-impacted soil has,been-defiried (Fiou s.3 <br /> and 4): .. �. <br /> First encountered.ground;water is'approximately 15 feet bsg. <br /> r TPH-dwas detected in the ground water sample"collected from B-9`at a concentration-of 59 <br /> Yg/l <br /> With the,`exception of 'low concentrations of TPH-d; the lateral extent' of petroleum' <br /> hydrocarbon-impacted grourid.watef has been delineated: <br /> ' '.-6.0.'. RECOMMENDATIONS <br /> >, Basedrupon data collected from-the site, AGE recommends 'this site be considered for closure todue " <br /> to"the'low and"non-detectable concentrations of petroleum'hydrocarbons in'the underlying soil:and' <br /> 'M. !grourfd water' <br /> .7:0. LIIVIITATIO N$' <br /> Our professional services,were.performed`using that degree of care and.skill ordinarily exercised"by'" <br /> envlrohmental''consulw fs " tactic 'g in this-or similar localities. The findings°were based main.ly` <br /> p analytical results rovide <br /> • <br /> upon. anal ical l <br /> r provided'ey an independent laboratory. Evaluations of the geologic/ . •. r <br /> hydrogeologic'conditions�at the site for the'puzpose`of this investigation are made from`a limited <br /> number of available data points {i.e; grab ground water samples and soil samples) and subsurface <br /> conditions may,vary away from these data points. No other warranty, expressed or implied, is made <br /> as to the professional recommendations contained in this report. .• <br /> } 'Advanced GeoEnvironmental,Inc. <br />