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I <br />' 12 July 2006 <br /> AGE-NC Project No 95-0130 <br />' Page 9 of 14 <br /> • Total petroleum hydrocarbons as diesel and motor oil(TPH-d and TPH-mo),TPH-g,by EPA <br />' Methods 3550/503018015 Modified and <br /> • BTEX, TBA, DIPE, ETBE, TAME and MTBE by EPA Method 8260B <br /> I <br />' 44 INFLUENT MONITORING RESULTS <br /> In accordance with the requirements of City of Stockton Department of Utilities Ground Water <br />' Discharge Permit, monthly ground water P&T system influent sampling was performed on 04 <br /> January, 07 February and 14 March 2006 for laboratory analysis of contaminants listed in <br /> Section 4 3 <br /> IDuring the above monthly monitoring events,influent water samples detected TPH-g during all three <br /> monthly monitoring events at concentrations as high as 39,000 µg/l (January 2006) TPH-d and <br />' TPH-mo were not detected in any of the above referenced samples <br /> BTEX constituents were detected during all three monthly monitoring events at concentrations as <br /> I . high as 7,200 pg/1 benzene, 13,000 µg11 toluene, 1,300 4g/1 ethylbenzene and 10,300 µg/l xylenes <br /> (January 2006) <br />' MTBE was detected (EPA Method 8260) during all three monthly monitoring events at <br /> concentrations as high as 1,600 µg/I (March 2006) <br /> The laboratory analysis did not detect any other constituents of concern Analytical results of <br /> extraction and treatment water samples(CTEL Laboratory I D Nos 0601-021,0602-052 and 0603- <br /> 083) are summarized in Table 8, laboratory reports are included in Appendix H, GeoTracker <br /> confirmation pages of the submitted laboratory electronic deliverable format(EDF)files are included <br /> in Appendix C <br /> I <br /> 45 EFFLUENT MONITORING RESULTS <br /> In accordance with the requirements of City of Stockton Department of Utilities Ground Water <br /> Discharge Permit, monthly ground water P&T system effluent sampling was performed on 04 <br /> January, 07 February and 14 March 2006 for laboratory analysis of contaminants listed in <br /> Section 4 3 <br /> Laboratory analysis of ground water P&T system effluent grab water samples did not detect any <br /> • constituents of concern Analytical results of extraction and treatment effluent water samples(CTEL <br /> Advanced GeoEnvironmental,Inc <br />