Laserfiche WebLink
, <br /> yF , <br /> . 21 December 1,999 <br /> AGE-NC Project No 98-0426 k <br /> Page 5`of 6 i r <br /> ,# laboratorOA/W report are included in Appendix D <br /> F <br /> 4.0. SUMMARY AND CONCLUSIONS M ' <br /> Based on the data collected from the site, AGE'finds ' <br /> • Ground water flow at the site was determined to be.toward the north-northeast, cons'Istent <br /> with regional trends <br />' Petroleum hydrocarbons were detected in soil samples collected from MW2 Hydrocarbon <br /> 'concentrations were lower than'those previously detected in boring B3 <br />' Low concentrations of hydrocarbons were detected in soil samples collected from MW3 <br /> Hydrocarbons were previously not detected in boring B 1, located approximately 7 feet south <br /> of MW3 <br />' Petroleum hydrocarbons were detected in the ground water samples collected from MW2 and <br /> MW3 <br /> lip <br /> r M <br /> • MTBE was reported in the ground water sample collected from'MW 1 at a concentration of <br /> 1 9 ppb Confirmation by EPA Method 8260 was not performed MTBE was not previously <br /> detected in any ground water samples collected at the site <br /> • Hydrocarbons were not detected in soil or the grab water samples previously collected from <br /> boring B2, located between MW2 and MW3, indicating two distinct areas of impacted soil <br />' and ground water at the-formcr dispenser and UST areas , z <br /> • Hydrocarbons were not detected In soil samples collected�frorn bonngs B5 or MW 1 or in the <br /> ' ground water sample collected from MW 1, hmitmg the extent of impacted soil and ground <br /> water down-gradient of the former dispenser island location t <br /> I S <br /> 5.0. RECOMMENDATIONS, <br /> Based on the findings of the environmental activities recounted in this report, AGE recommends <br /> r _ • Continued quarterly mbnitonrig of the ground,water monitoring wells on-site The next <br />' monitoring event should be performed in February 2000 <br /> • If impacted groundwater is confirmed at the former UST pit location, an additional,ground <br /> water monitoring well should be installed down-gradient,of MW3 to define the extent of <br /> impacted soil and ground water north of,the former UST location I' " <br /> F, qly <br /> ,Advanced GeoEnvironmental,Inc <br /> h S F <br />