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C,edogual Teckda Inc Page 4 <br /> ' Groundwater Monitoring Report <br /> Project No 662 2 <br /> December 2,2005 <br /> ' With additional analyses for new wells MW-5, MW-6 and EW-2 <br /> + Total Petroleum Hydrocarbons as Diesel (TPH-D) by EPA method 8015(M) <br /> ' + Oxygenated Fuel Compounds D1PE, ETBE&TAME by EPA method 8260 <br /> + 1,2 DCA and EDB by EPA method 8260 <br /> + Methanol by EPA method 8015(M) <br /> ' + Lead by method 6010B <br /> The detection limits for the above analyses are listed in Table 3 of Appendix A while the lab <br /> analytical results are presented in Appendix B <br /> As required under AB2886, the groundwater elevation & laboratory data were submitted <br /> electronically to GeoTracker on December 2, 2005 (confirmation # 7484417855 & <br /> 2168716251) <br /> 2.0 FINDINGS AND DISCUSSION <br /> ' In accordance with SJCIEHD's January 31, 2005 facsimile correspondence, the <br /> groundwater analytical protocol was modified for this event <br /> Wells MW-1, MW-2, MW-3 and MW-104 were analyzed far TPH-G, BTEX, MTBE and for <br /> the remaining two quarters of 2005 these wells will be sampled for TPH-G, BTEX and MTBE <br /> ' only These wells will be analyzed for TBA, Ethanol and 1,2 DCA constituents on an annual <br /> basis in the first quarter <br /> ' New wells MW-5, MW-6 and EW-2 were analyzed for TPH-G, TPH-D, BTEX, MTBE, <br /> ETBE, DIPE, TAME, TBA, Methanol, Ethanol, EDB, Lead and 1,2 DCA The TPH-D, <br /> Methanol, Ethanol, EDB, and 1,2 DCA analyses will be discontinued since they have been <br /> ' non-detect for two consecutive events Lead analyses will be continued in well MW-5 and <br /> MW-6 until they test negative for two consecutive events The remaining protocols will <br /> match those above Any constituent detected above the laboratory reporting limit will be <br /> ' maintained in the quarterly analytical scheme <br /> The results of the groundwater sample analyses indicate the following <br /> ' Shallow A uifear <br /> ' + Well MW-1 contained the gasoline oxygenate MTBE at 1510 µg/1 This well has <br /> consistently contained MTBE The well also contained 330 ug/1 TPH-G This is the third <br /> consecutive event in which TPH-G was detected in the well above the laboratory <br /> reporting limit <br />