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' 08 September 2005 AGE-NC Protect No 97-0333 Page 3 of 11 * Total lead by EPA Method 6010B (influent sample only) 2 4 INFLUENT MONITORING RESULTS In accordance with the requirements of CMPWD Industrial Wastewater Discharge PermrtNo 02-1, monthly ground water extraction and treatment influent sampling was performed on 20 January, 16 February and 15 March 2005 for laboratory analysis of the contaminants listed in Section 2 3 During all three monthly monitoring events,influent water samples detected TPH-g at concentrations as high as 9,600 micrograms per liter (µg/1) in the March 2005 sample, TPH-d and TPH-mo were not detected in any of the above-referenced samples Various BTEX constituents were detected in all three influent water samples at concentrations as high as 240 µg/1 benzene, 1,700 µg/1 toluene, 300 µg11 ethylbenzene, and 2,320 µg/1 xylenes from the March 2005 sample MTBE was detected(EPA Method 826013)in all three influent samples at concentrations as high as 2,200 µg/l in the February sample, TAME was detected in all three influent samples at concentrations as high as 37 µg11 in the February sample, TCE was detected mall three influent ' samples at concentrations as high as 21 µg/1 in the January sample, PCE was detected in all three influent samples at concentrations as high as 1,100 µg/l in the January sample ' The laboratory analysis did not detect any other constituents of concern Analytical results of extraction and treatment influent water samples(CTEL Project Nos 0501-112,0502-106 and 0503- 148) are summarized in Table 2, laboratory reports are included in Appendix A, GeoTracker confirmation pages of the submitted laboratory electronic deliverable format(EDF)files are included in Appendix B r 2 5 EFFLUENT MONITORING RESULTS In accordance with the requirements of CMPWD Industrial Wastewater Discharge Permit No 02-1, monthly ground water extraction and treatment effluent monitoring was performed on 20 January, 16 February, and 15 March 2005 for flow rate and laboratory analysis of the contaminants listed in Section 2 3 Laboratory analysis of extraction and treatment effluent grab water samples did not detect any constituents of concern Analytical results are summarized in Table 2,laboratory reports are included in Appendix A, GeoTracker confirmation pages of the submitted laboratory electronic deliverable Advanced GeoEnvironmeotal,Inc