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' 14 February 2005 • AGE-NC Project No 95-0128 Page 4 of 6 ' ethylbenzene and 69µg11 of total xylenes MTBE was detected at a concentration of 380 µg/1 • 20 July 2004-TPH-g was detected at concentrations of 1,200 µg/1 BTEX compounds were detected at concentrations of 100 µg/1 of benzene, 29 gg/l of ethylbenzene and 38 pg/1 of I total xylenes MTBE was detected at a concentration of 490 Ag/l. No detectable TPH-d was present in the sample ' 0 19 August 2004-TPH-g was detected at concentrations of 960 gg/1 BTEX compounds were detected at concentrations of 220 pg/l of benzene, 26 µg/1 of ethylbenzene and 11 µg/1 of total xylenes MTBE was detected at a concentration of 290 pg/l No detectable TPH-d was present in the sample • 23 September 2004-TPH-g was detected at concentrations of 1,100 µg/l BTEX compounds were detected at concentrations of 180 pg/l of benzene,67 gg/l of ethylbenzene and 45 8 pg/l of total xylenes MTBE was detected at a concentration of 460 gg/l No detectable TPH-d was present in the sample ' a 13 October 2004 - Extraction well EW-2 was used for ground water extraction with the following results TPH-g was detected at concentrations of 320 gg/l BTEX compounds were • not detected MTBE was detected at a concentration of 97 µg11 No detectable TPH-d was present In the sample • 02 November 2004 - Extraction well EW-2 was used for ground water extraction with the following results TPH-g was detected at concentrations of 200µg/1 BTEX compounds were not detected MTBE was detected at a concentration of 200 gg/l No detectable TPH-d was present in the sample • 30 November 2004 - Extraction well EW-2 was used for ground water extraction with the following results TPH-g was detected at concentrations of 440µg11 BTEX compounds were I detected at concentrations of 18 gg/l of benzene and 9 0 µg/1 of total xylene MTBE was detected at a concentration of 86 pg/l • 12 December 2004 - Extraction well EW-2 was used for ground water extraction with the following results TPH-g was detected at concentrations of 330 gg/l and benzene was detected at a concentration of 3 7 p.g/ MTBE was detected at a concentration of 45 µg/1 TPI i-g, TPH-d,MTBE uld BTEX were not detCLted in the effluent sdunples The pH measurements were within permitted discharge levels Metals and 624/624 concentrations were within permitted discharge levels The analytical results are summarized in Tables 3 and 4 The laboratory reports for the quarterly monitoring event(CTEL Project No 0406150,0407140,0408134,0409159,0410080, 0411025,0412001 and 0412101),quality assurance and quality control(QA/QC)reports and chain of custody forms are included In Appendix E GeoTracker confirmation pages of the submitted • laboratory electronic deliverable format (EDF) files are included In Appendix D Advanced GeoEnvnronmental,Inc I