Laserfiche WebLink
' 07 Februa6 2000 <br /> • AGE-NC Project No 95-0144 <br /> ' Page 4 of 4 <br /> ' stable or decreased at the site between August and November 1999 <br /> • Hydrocarbon concentrations Increased significantly in MW-20A & B and decreased <br /> significantly in MW21A & B These samples may have been mislabeled or switched, <br /> thowever no evidence of a switch in the field or laboratory could be Identified If the <br /> concentration changes are actual, it would Indicate a sudden migration of contaminants in <br /> ground water at the site <br /> • MTBE was detected in two of the ten wells sampled at concentrations as high as 1 5 ppb <br /> Other oxygenates were not detected In the samples collected during the November 1999 <br /> ' monitoring event <br /> ' 5.0. RECOMMENDATIONS <br /> ' Based upon data obtained during the fourth quarter of 1999 and previous sampling events, AGE <br /> recommends the following <br /> • The next quarterly monitoring event should be scheduled for February 2000, concurrent with <br /> monitoring at the Van Buren site In accordance with the revised monitoring schedule, all <br /> wells will be sampled at that time <br /> ' • A work plan is currently in preparation for remediation at the former UST No 8 location <br /> ' <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 mainly <br /> upon analytical results provided by an independent laboratory Evaluations of the hydrogeologic <br /> ' conditions at the site have been made from a limited number of available data points (I a ground <br /> water monitoring wells), and subsurface conditions may vary through time and with distance from <br /> these data points No other warranty, expressed or Implied, is made as to the professional <br /> ' recommendations contained in this report <br /> 1 ' <br /> ' Advanced GeoEnvironmental,Inc <br />