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r06 May 1997 i AGE-NC Project No 95-0111 Page 3 of 4 r 4.0. CONCLUSIONS AND RECOMMENDATIONS r 41 CONCLUSIONS rBased upon data collected from the site, AGE has the following conclusions r During the March 1997 monitoring event, ground water flow direction at the site was generally toward the north-northeast S _ r • In general, over the last quarter concentrations of petroleum hydrocarbons decreased in monitoring wells MW-1, MW-2 and MW-5 The concentrations of TPH and benzene increased in monitoring well MW-4 over the Iast quarter ` r • It appears that monitoring well MW-6 is located past the down-gradient margin of the plume of dissolved hydrocarbons • The western and eastern extent of the dissolved hydrocarbon phune along Grant Line Road, has not been determined 4 2 RECOMMENDATIONS rBased on present site conditions, AGE has the following recommendations • Additional monitoring wells should be installed east of MW-5 and consideration should be given to installing a monitoring point west of MW-4?, along Grant Line Road Proposed monitoring well locations are illustrated on Figure 2 , • If ground water remediation is required for the site, feasibility testing should be performed to evaluate various remedial alternatives r , Quarterly monitoring and sampling should continue at the site The next quarterly monitoring should be scheduled for June 1997 r ' 5.0. LIMITATIONS Our professional services were performed using that degree of care and skill ordinarily exercised by ' environmental consultants practicing in this or similar localities The findings were based upon analytical results provided by an independent,laboratory Evaluations of the geologic/hydrogeologic • conditions at the site for the purpose of this investigation are made from a limited number of I