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25 January 2005 <br /> AGE-NC Project No 99-0559 <br /> Page 5of10 <br /> 120 µg11 and 1,100 µg11, respectively No additional target analytes were detected at or above <br /> laboratory reporting limits during this sampling event <br /> HUSU BTEX compounds were detected in sample MW-6C at maximum concentrations of 8 3 µg/1 <br /> benzene, 5 1 gg/l toluene and 2 7 µg/1 total xylenes The fuel additive MTBE was detected in <br /> samples MW-5C and MW-6C at concentrations of 2 2 µg/I and 53 µg11, respectively No additional <br /> target analytes were detected at or above laboratory reporting limits during this sampling event <br /> HTJSL TPH-g was detected in sample MW-7D at a concentration of 24,000 gg/l BTEX compounds <br /> were detected in sample MW-7D at concentrations of 4,000 gg/l benzene, 2,800 µg/1 toluene, 670 <br /> µg/1 ethyl-benzene and 1,500 µg/1 total xylenes The fuel additive MTBE was detected in samples <br /> MW-5D and MW-7D at concentrations of 4 0µg/1 and 2,600µg11,respectively No additional target <br /> analytes were detected at or above laboratory reporting limits during this sampling event <br /> HU6 TPH-g was detected in samples MW-6E and MW-7E at concentrations of 100 µg/1 and <br /> 2,400 µg/1, respectively BTEX compounds were detected in samples MW-6E and MW-7E at <br /> maximum concentrations of 380 µg/1 benzene, 1,100 µg/1 toluene, 75 gg/l ethyl-benzene and <br /> 357 µg/1 total xylenes in sample MW-7E The fuel additive MTBE was detected in sample MW-7E <br /> at a concentration of 55 µg/1 No additional target analytes were detected at or above laboratory <br /> reporting limits during this sampling event <br /> The analytical results of current and historical ground water samples are summarized in Table 2 The <br /> distribution of dissolved MTBE is depicted in Figure 8 The laboratory report (CTEL Project No <br /> CT214-0412103),quality assurance and quality control(QA/QC)reports and chain of custody forms <br /> are included in Appendix C GeoTracker confirmation pages of the submitted laboratory electronic <br /> deliverable format (EDF) files are included in Appendix D <br /> 3.0. GROUND WATER EXTRACTION -TREATMENT REMEDIATION <br /> Ground water remediation system installation and operation was performed in accordance with <br /> procedures described in the approved Interim Remediation and Site Assessment Work Plan, dated <br /> 25 January 2001 and Interim Remediation Work Plan -Addendum, dated 16 September 2002 The <br /> ground water extraction system consisting of the ground water treatment unit and associated piping <br /> was installed between 18 February and 26 June 2003 (Figure 2A) <br /> I <br /> Advanced GcoEnvironmental,Inc <br />