Laserfiche WebLink
uµr z yr r s r »r t.» _ .� s . _r — w--..-, -..� u -� _ - .. K,.- _.»..;.❑u'�+= IL <br /> 03:January 2005 <br /> .' AGE-NC Project No '95-0142 <br /> ' Page 5'of 6 <br /> e <br /> I t <br /> L = <br /> 312 2' Laboratory Analysis of Effluent Ground Water Samples <br /> �. TPH-gid, BTEX compounds and MTBE were not detected in the'effluent ground water treatment a"' <br /> ,t samples analyzed Analytical results-of pump and treat'water samples are summarized it Table-4, <br /> t laboratory reports are provided in Appendix B <br /> 1 33 GROUNDWATER MASS-VOLUME REMOVAL CALCULATIONS <br /> ' + i <br /> During the fourth quarter of 2004 an estimated 22 3 lbs of TPH-g and 3 18 lbs of benzene were <br />' extracted from the ground water' The fourth quarter 2004 volume to mass to weight calculations <br /> from the ground water pump-and-treat system are presented in Appendix D The results of the <br /> laboratory analysis are summanzed in Table 4 <br /> N r 4 <br /> I ' S <br /> I <br /> 4.0 SUMMARY AND CONCLUSIONS <br /> 1 ! r <br /> Based on the data collected from the site, AGE concludes <br /> r I+I 1 <br /> • Results from previous assessment investigations indicated that the highest concentrations of <br /> ' petroleum'hydrocarbons in soli and ground water were near the former UST area TK1-90, ; <br />' at a depth interval between 10 and 40 feet bsg(VW-1), SVE and ground water remediation <br /> efforts are directed in this area Ongoing operation of the remediation system should result 'r <br /> ` in the reduction of hydrocarbon impact to soil and ground water v <br /> r The ground water pump-and-treat system was in operation during the fourth quarter of 2004 <br /> Approximately 242,490 gallons of water were processed,'AGE estimates that an average of <br /> 2,820 gallons of water were discharged per day during this time t i , , I_ <br /> • I; <br /> Based on the amount of ground water processed and laboratory analytical results, F <br /> approximately 22 3 lbs of TPH-g and 3 18 lbs of benzene,were removed from the extracted <br />' i ground water during fourth quarter 2004 To date,,a total of 55 lbs of TPH-g and 8 2 lbs of <br /> ' benzene were extracted from ground water <br /> I ' <br /> n r I s vu <br /> 50. RECOMMENDATIONS <br /> Based upon the results of the remediation activities to date, AGE recommends <br /> I <br /> • Continuation of ground water and soil remediation, and <br /> r <br /> 1 <br /> � Advanced Geo Environmental,Inc <br /> r I <br /> ' r <br /> 1 y r <br /> 1 <br /> I , <br />