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1 <br /> > i I 1 s ♦ f •• 1 �1 s <br /> 27 September 2004 r <br /> ti AGE-NC Project No 95-0142 <br /> 5of7 <br /> Page, <br /> "r <br /> ' r <br /> 3 3 1 Laboratory Analysis of IInfluent Ground Water Samples IS t - 1 , <br /> r- <br /> TPH-g and BTEX compounds and MTBE were detected in the influent samples from well EW-1 <br /> { The following is a,summary of the detected concentrations <br /> y •' 21 April TPH-g was detected at 5,4001pg/l,and BTEX compounds were detected at 820 µg/1 <br /> benzene, 180 pg/l toluene and 810 µtg/l xylenes <br /> • 27 May TPH-g was detected at 5,100 pg/l, BTEX compounds were detected at 640 pg/l <br /> benzene, 300 pg/l toluene and 520 µg/l xylenes, and MTBE was detected at 25 pg/l <br /> • 25 June TPH-g was detected at 5,400 pg/l, BTEX compounds were detected at 740 pg/l ' <br /> benzene, 630 pg/l toluene, x160 pg/1 ethylbenzene`and 370 p,g/l x�ylenes,`and MTBE was <br />' detected at 14 µg/l <br /> • 22 July TPH-g wasdetected at 5,900 pg/l, BTEX compounds were detected at 680 pg/l <br /> benzene, 820 pg/1`toluene, 160 pg/l ethylbenzene and 500 pg/l xylenes, and MTBE was, <br /> detected at 13 pg/l <br /> • 18 August ,TPH-g was detected at 9,100 pg/l,BTEX compounds were detected at,1,100 pg/1 <br /> lie benzene,-1,500 pg/1 toluene, 240 pg/1 ethylbenzene and 880 pg/l xylenes <br /> r <br /> I1 <br /> I.1 y,Lr s I 4 <br /> Analytical results of pump and treat water samples are summarized in Table 4,the laboratory reports <br /> (MAI Work Orders 0405479, 0406370, 0406460,0407302 and 0408256)QA/QC reports and chain <br /> in oflcustody forms are included in Appendix B GeoTracker,confirmation,pages of the submitted <br /> laboratory electronic deliverable format (EDF) files'are`included in Appendix E - <br /> 1 <br /> U , <br /> f , <br /> r - <br /> r 3 3 2 Laboratory Analysis of Effluent Ground Water Samples <br /> TPH-g/d, BTEX compounds and MTBE`were not detected in the effluent ground water treatment <br /> samples analyzed Analytical results of pump and treat water samples are,summanzed`xn Table 4, <br /> laboratory reporfs'are provided in Appendix B <br /> r <br /> 3 4 GROUND WATER MASS-VOLUME REMOVAL CALCULATIONS <br /> , <br /> u � ^ <br /> Dunng 2004 anestimated 14 lbs of TPH-g and 1 81 lbs of benzene were extracted from ground <br /> water',The 2004'volume to mass to weight calculations from the ground water pump-and-treat <br /> system are presented in Appendzx D The results of the laboratory analysis are summarized in <br /> Table 4' <br /> ' r <br /> Advanced GeoEnvironmental,Inc <br /> 1 <br />