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L <br /> LDecember 23,2005 <br /> NOA Project Number: E051 50A <br /> 3.4 Past Off-Site Sources of Contamination <br /> n <br /> No above-or below-ground potential or known sources of contamination to the subject property were <br /> identified from past uses of surrounding properties, except for the following: <br /> L. One Local Oversight Program case and one drug lab were identified within one-quarter mile <br /> of the subject property. <br /> • Marley Cooling Tower Company,located approximately one-half mile north-northwest of the <br /> subject property,has contaminated groundwater in the area with total chromium and hexavalent <br /> chromium. Hexavalent chromium has been detected in a monitoring well located in the Main <br /> L Street roadway directly south of the subject property at 9.5 parts per billion (ppb) and in a <br /> domestic well to the south of this at 0.7 ppb. <br /> L 0 Three underground storage tank sites were identified on properties adjacent to the subject <br /> property across East Main Street and Walker Lane. <br /> L. 3.5 Current Off-Site Sources of Contamination <br /> } No above-or below-ground potential or known sources of contamination to the subject property were <br /> Lidentified from current uses of the surrounding properties, except for the following: <br /> • Several 55-gallon drums which may contain waste oil were observed at the adjacent property <br /> to the west. <br /> LAdjacent properties utilize private wells and septic systems. <br /> 4.0 EVALUATION OF IDENTIFIED CONTAMINATION SOURCES <br /> N <br /> L Agricultural chemical residues may remain on the property. No evidence was found, however, to <br /> indicate that the chemicals were applied inappropriately. Agricultural infrastructure may exist on the <br /> property from the former fanning operations. <br /> L <br /> Because the underground storage tank on the property was removed without a permit, the possibility <br /> Lexists that contamination may remain in the vicinity of that tank. <br /> Because of the distance from the identified drug lab and Local Oversight Program case to the subject <br /> i property,no impact to the property from those sources is anticipated at this time. <br /> iL <br /> 13 <br /> "0144L <br />