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22 Jtily 1996 <br /> AGE-NC Project No 95-0111 <br />' Page 3 of 3 <br />' - 4 0. CONCLUSIONS AND RECOMMENDATIONS <br /> Low concentrations of MTBE and.TPH-d were detected the sample collected from MW-6, located <br /> t along the north side of Grant Line Road It is likely that this well is located near the down-gradient <br /> extent of impacted hydrocarbon plume However,the eastern extent of the hydrocarbon plume has <br /> not been determined Additional monitoring wells may be required to define the dissolved _ <br />' hydrocarbon plume to the satisfaction of the PHS-EHD <br /> If additional wells are required, we recommend the installation of a well east of MW-5, along Grant <br />' Line Road and west of MW-4 also along Grant Line Road The proposed monitoring well locations <br /> are illustrated on Figure 2 <br />' Although concentrations of TPH are considerably high in wells MW-4 and MW-5, BTE&X <br /> concentrations are relatively low However, if ground water remediation is required for the site, <br />' feasibility testing should be performed to determine acceptable remedial alternatives <br /> Quarterly monitoring and sampling should continue at the site The next quarterly monitoring <br /> should be scheduled for September 1996 If additional monitoring wells or feasibility testing is <br /> required, field work should be performed prior to monitoring <br /> 1 5.0. LIMITATIONS <br />' Our professional services were performed using that degree of care and skill ordinarily exercised by <br /> environmental consultants practicing in this or similar localities The findings were based upon <br /> analytical results provided by an independent laboratory Evaluations of the geologxc/hydrogeologic <br />' conditions at the site for the purpose of this investigation are made from a limited number of - <br /> available data points (i a monitoring wells) and subsurface conditions may vary away from these <br /> data points No other warranty, expressed or implied, is made as to the professional <br /> recommendations contained iii this report <br /> • r <br /> t <br />