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-29.December 1998• ; <br /> AGE-NC'ProjectNo. 95-0106 ' <br /> Page 44.4 <br /> I Ahalytical data from monitoring well MW-2`limi6:the exterit'of dissolved hydrocarbons <br /> southward 'of the site: Analytical data from"-well MW-3 and MW-6 limits the extent"of <br /> 'dissolved hydrocarbons'northeastward of the site:Analytical data from monitoring well MW- ' <br /> 5 limits the extent of dissolved hydrocarbons westward of the site.:Aiialytical data from well <br /> I'. MW-Tlimits'the extent of dissolved hydrocarbons east.of the site. <br /> Continued detection of T PH=g and BTEX in`grdund water samples collected from the off-site <br /> T well MW4�indicates•that the lame of isrl acted groundwa#er has migrated off-site towards <br /> P P <br /> the north. ,The.limited range of analyte concentrations detected in ground water,'samples <br /> collected from MW-4 are suggestive of a stable-plume. <br /> The extent ofthe:plume around MW4 is constrained by data from'MVlW6 toward the'north <br /> northeast;MW5 toward the southwest and P4"toward the southeast relative to'MW4'The <br />�n .northwestern extent of the'plume.is not constrained. , <br /> 5.0. - RECOMMENDATIONS:,„ <br /> Based on the'results of this investigation; AGE recommends: <br /> • Collection of sail and ground water samples'to characterize and delineate the off--site plume <br /> of impacted ground water. AGE is preparing a work <br /> plan.to address this issue. <br /> Continued quarterly•monitoring of the,monitoring well network until the nature of the <br /> impacted ground water in the area of MW4 is`unde'rstood','AGE has scheduled-the next <br /> ground water monitoring event'for March 1999 <br /> 60. LIMITATIONS ` <br /> Our professional"services,were;perfomled-using that degree of care and,skill oidia- ilyekercised by— <br /> environinental.consultants practicing'iii:this.or similar localities-Me findings were based.upon <br /> anal ical'resuits rovided b' an inde endent laboratory. Evaluations of the eolo ic/h dro polo is <br /> _ . . Yt• <p Y P. . rY• g g Y �. g. . ..:. ' - . <br /> conditions'at the site or-the' of this investigation are'made from a limited number-of <br /> available data points (i-.,e monitoring well:ground water samples) and subsurface conditions may ; <br /> vary away from these data:points. No other warranty; expressed-or,implied,'is"made`as'•to the <br /> '.professional recommendations contained in-this report, y <br /> Ij <br /> s Advanced GeoEnvironmentsl,Inc, ' <br />