Laserfiche WebLink
l <br /> I02 October 2001 <br /> • AGE-NC Project No 98-0452 <br /> Page 3 of 3 <br /> 4.0. SUMMARY AND CONCLUSIONS <br /> Based upon data collected from the site, AGE concludes the following <br /> • Ground water elevations have increased approximately 0 6 feet since the previous quarterly <br /> monitoring event <br /> • The ground water gradient was calculated to be 0 004 ft/ft with a flow direction toward the <br /> southwest Ground water flow direction during the previous three quarters had been toward <br /> the north to northeast The most recent ground water flow direction and gradient are nearly <br /> identical to those recorded during the third quarter 2000 monitoring event Local ground <br /> water appears to be influenced by seasonal hydrogeologic changes <br /> • TPH-d was not detected above laboratory reporting limits in any of the ground water samples <br /> collected and analyzed <br /> • MTBE was detected in monitoring wells MVS-2 and MW-3 at concentrations of 35 µg/1 and <br /> 180 µg/l, respectively The concentrations detected in samples MW-2 and MW-3 exceeed <br /> the action level and Maximum Containment Level for MTBE m drinking water <br /> • • Analytes of concern were not detected in the on-site domestic well <br /> 5.0. RECOMMENDATIONS <br /> Based upon data collected from the site,AGE recommends continued ground water monitoring for <br /> rMTBE The next quarterly monitoring event should be scheduled for December 2001 <br /> 6.0. LIlMITATIONS <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 field <br /> measurements and analytical results provided by an independent laboratory Evaluations of the <br /> I geologic/hydrogeologic conditions at the site for the purpose of this investigation are made from a <br /> limited number of available data points(i a monitoring wells, ground water samples) and subsurface <br /> conditions may vary away from these data points No other warranty, expressed or implied, is made <br />' as to the professional recommendations contained in this report <br /> Advanced GcoEnvironmental,Inc <br /> I <br />