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i. <br /> The groundwater sample collected from MW-1 only contained 0.7 µg11 of MTBE, the sample <br /> collected from MW-2 only contained 0.6 of MTBE, and the sample collected from MW-3 only <br /> contained 0.6 of MTBE. The groundwater sample analytical results are summarized in Table 2, <br /> the distribution of gasoline in groundwater is shown on Figure 5,, and the laboratory reports are <br /> included in Appendix C. <br /> I <br /> Between June 30, and August 28, 2008, the concentration of gasoline compounds in <br /> groundwater remained relatively consistent. Concentrations ofi;�gasoline compounds in <br /> - groundwater at MW-1 have declined significantly, since the monitoring wells were installed in <br /> July 2002, probably due to source removal efforts and natural attenuation processes. <br /> t <br /> 2.3 Wastewater Disposal I <br /> On September 19, 2008, Doulos Environmental, Inc. (Doulos) transported approximately 42 <br /> gallons of groundwater, accumulated from sampling activities as nonhazardous waste, to <br /> InStrat, Inc. in Rio Vista, California. InStrat treated the wastewater with granular activated <br /> carbon and disposed of it according to their waste discharge permit. A copy of the non- <br /> hazardous water transport form is included as Appendix D. k <br /> i - I <br /> I i <br /> J . <br /> i <br /> i II <br /> 3 <br /> 9 <br />