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30 September 2003 <br /> AGE-NC Project No 98-0465 <br /> Page 4 of 4 <br /> i <br /> MW2,'MW3 and MW4 have remained relatively stable compared to the previous momtonng <br /> event Detected concentrations of MTBE in MW 1 significantly increased compared to <br /> I ,previous monitoring events <br /> • The lateral extent of MTBE-impacted ground water has been defined to the northeast of the <br /> former UST area, but not toward the west-northwest, east or south <br /> 5.0. RECOMMENDATIONS <br /> Based on the findings of this investigation, AGE recommends <br /> • Continued quarterly monitoring of the ground water monitoring wells The next-monitoring <br /> event will be performed October 15, 2003 <br /> • Preparation of a work plan to delineate the lateral extent of MTBE-impacted ground water <br /> tat the site <br /> 6.0. 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 Evaluation ofthe hydrogeologic conditions <br /> at the site for the purpose of this investigation was made from a limited number of available <br /> subsurface data points(i e ,monitoring wells and ground water samples) and subsurface conditions <br /> may vary away from these data points No other warranty, expressed or implied, is made as to the <br /> professional opinions, interpretations and recommendations contained in this report <br /> L 1 + 1 + s <br /> t <br /> I ' 1 <br /> r <br /> 1 1 <br /> 1 I^ <br /> r <br /> i <br />' ,Advanced GeaEnvironmental,Inc. <br />