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10 February 2000 <br /> . AGE-NC Project No 98-0426 , <br /> Page 3 of 3 <br /> , r <br /> I4.0. SUMMARY AND CONCLUSIONS <br /> Based on the data collected from the site, AGE finds ' <br /> ,} yL <br /> • Ground water flow at the site was toward the northeast;consistent with the October 1999 <br /> monitoring event and regional trends <br /> • Petroleum hydrocarbons were detected in the ground water samples collected from MW2 and <br /> MW3 at concentrations of 530 ppb and 600 ppb, respectively, significantly lower than <br /> concentrations detected during the October 1999 sampling event <br /> • MTBE and other fuel oxygenates were not detected in any of the ground water samples <br /> collected <br />' Hydrocarbons were not detected In the grab water sample collected in October 1998 from <br /> boring B2, located between MW2 and MW3, possibly indicating two distinct areas of <br />' impacted ground water at the former dispenser and UST areas <br />�. 5.0. RECOMMENDATIONS <br />' Based on the findings of the environmental activities recounted in this report, AGE recommends <br /> G Continued quarterly monitoring of the ground water monitoring wells on-site The next , <br />' monitoring event should be performed in April 2000 <br /> • Installation of an additional ground water monitoring well northeast (down-gradient) of <br /> MW3 to define the extent of impacted soil and ground water north of the former-UST <br />' location l <br /> 6:0. LIMITATIONS, <br /> I 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 of the hydrogeologic conditions <br />' at the site for the purpose of this investigation was made from a limited number of available data <br /> points (ground water samples) and subsurface conditions may vary away from these data points No <br /> other warranty, expressed or implied, is made as to the professional recommendations contained in <br />' this report <br /> , <br /> r <br /> I Advanced GeoEnvironmental,Inc <br />