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' 30 March 2005 <br /> • AGE-NC Project No 95-0130 <br /> Page 9 of 13 <br />' butyl ether(MTBE) by EPA Method 8260B, <br /> • Total cadmium, chromium, copper, lead, nickel and zinc by EPA Method 6010B (effluent <br /> sample only, annual sample frequency), and <br />' • Total toxic organics by EPA Method 624 (effluent sample only, annual sample frequency) <br /> 44 <br /> INFLUENT MONITORING RESULTS <br /> In accordance with the requirements of City of Stockton Department of Utilities Ground Water <br /> Discharge Permit,monthly ground water extraction and treatment influent sampling was performed <br /> on 17 November and 29 December 2004 for laboratory analysis of contaminants listed in Section <br /> 43 <br />' During the November and December 2004 events, influent water samples detected TPH-g at <br /> concentrations of 69,000 lig/1 and 26,000µg/1,respectively, TPH-d and TPH-mo were not detected <br /> in any of the above referenced samples <br /> Various BTEX constituents were detected in both of the above samples at concentrations as high as <br /> 11,000 µg11 benzene, 12,000 µg/1 toluene, 3,100 µg/1 ethylbenzene and 16,000 µg/l xylenes <br /> MTBE was detected(EPA Method 8260)in both samples at concentrations of 7,100 gg/l and 7,400 <br /> �ig/l, respectively <br /> I The laboratory analysis did not detect an other constituents of concern Analytical results of <br /> Y Y Yt <br /> extraction and treatment influent water samples (CTEL Laboratory I D Nos 0411-134 and 0412- <br /> 235) are summarized in Table 8, GeoTracker confirmation pages of the submitted laboratory <br /> electronic deliverable format(EDF)files are included in Appendix D,laboratory reports are included <br /> in Appendix I <br /> I45 EFFLUENT MONITORING RESULTS <br /> In accordance with the requirements of City of Stockton Department of Utilities Ground Water <br /> Discharge Permit,monthly ground water extraction and treatment effluent sampling was performed <br /> on 17 November and 29 December 2004 for laboratory analysis of contaminants listed in Section. <br /> 43 <br /> I <br /> Laboratory analysis of extraction and treatment effluent grab water samples did not detect any <br /> . constituents of concern Analytical results of extraction and treatment efffluent water samples(CTEL <br /> Advanced GeoEnvsronmental,Inc <br /> I <br />