Laserfiche WebLink
1 M <br /> i d � <br /> 05 November 2002 <br /> AGE-NC Project No 96-0235 <br />' Page 5 of 5 <br /> J 1 <br /> of BTEX compounds in ground water samples collected from the former UST cluster have <br />' remained relatively stable during the past nine quarters <br /> • y MTBE was detected by EPA Method 8260 in the deep-screened wells MW-9, MW-11B, <br /> MW-12B and MW-13B and in the shallow-screened wells MW-10,MW-13A and EW-1 at <br />' concentrations as high as 460 gg/l (EW-1) I - , , <br /> • The most impacted ground water appears to be centered around EW-1 and MW-10 The <br />' deeper ground water appeared less intensely impacted than shallow ground water <br /> • The lateral extent of the contamination plume in ground water is not well defined east and <br />' south of the former UST cluster <br /> 5.0. RECOMMENDATIONS <br /> Based on the findings of the environmental activities recounted in this report, AGE recommends <br /> • Continued quarterly ground water monitoring The next quarterly monitoring event should <br /> -be scheduled for November 2002 <br /> • Completion of the scope of work proposed in the AGE-prepared Monitoring Well <br />' Installation Work Plan Addendum, dated 20 September 2001 and approved by the EHD in <br /> the letter dated 21 September 2001 <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 of the 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 a ground water samples from ground water monitoring wells) and <br /> ' subsurface conditions may vary away from these data points No other warranty, expressed or <br /> implied, is made as to the professional interpretations,opinions and recommendations contained in <br /> this report <br /> Advanced GeoEnvironmental,Inc <br />