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i <br /> monitor the predicted progression of impacted groundwater(Attachment C). The maximum <br /> ,! concentrations of toluene,ethylbenzene and xylene predicted in the fictitious well were 0.174 <br /> ppb, 0.0775 ppb and 0.62 ppb, respectively. Only the predicted concentration of xylene in <br /> the fictitious well exceeds laboratory MDL-s; however, the concentration of xylene does not <br /> exceed the drinking water MCL (1,750 ppb). <br /> If you have any additional questions or comments, please contact our office. <br /> Sincerely, <br /> GEOLOGICAL AUDIT SERVICES, INC. <br /> Itu <br /> Kevin McKibben <br /> Project Geologist <br /> Bob Marty <br /> Geologist/Project Manage <br /> • 3 <br />