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1 ' <br /> ® I` <br /> concentrations of 0.6ppb and 5.7 ppb,respectively. Benzene was not detested in the groundwater <br /> samples from monitor wells MW-2, KW-4 and MW-5, Toluene, ethylbenzene and total xylenes <br /> were also,detected in wells MW-5,MW-6 and MW-7. Groundwater samples frau monitor wells <br /> -MW-2,MVV-5 and MW-7 contained.l 9 <br /> ,2-dieWoroethe�ue , <br /> ® _ (k,�DCA):at ccniccats�atiana of 27"ppb;�� <br /> 120- and;7 b•res ; <br /> i p . ptctively. The groundwater samples from•monito;wells"MW-4 and A!54►6 <br /> did"d '�caritsd`detcdr}�;ecossccotradO 1,2-DCA.., <br /> .-" - ns of . . <br /> Water was first obsor%td during the drilling of borings B-5 through B-7 at <br /> depths of betw <br /> eea 66 <br /> ft <br /> and 67.2 ft below ground surface. Liquid-level measurements were taken on 15 June 19x0 and <br /> `I <br /> 31 July 1990 from wells MW-1,MW-2 and MW4 through MW-7. Groundwater elevations uv all <br /> E <br /> wells dropped approximately ft between 15 June and 31 July 1990. The: ated,gtaouiidsvat�:r"' <br /> 11o .,duectton"beneath the s to on 31 J <br /> my 1990 was to the south to south•SouthwCSt: The <br /> g: A groundwater gradient beneath the no <br /> half of the site was appraxlmately 2.5%and beneath <br /> the southern half of the site was much gentler,at about 0.5%. <br /> s _ <br /> 4 <br /> i10 i <br /> Y <br /> - l <br /> f 1 <br /> 4s <br /> , <br /> �V <br />