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Remedial We11 and S stem Installatoon <br /> The lateral ozone injection lines, soil vapor extraction lines, and remediation compound were <br /> installed following installation of the ozone sparge and SVE wells The location of the remediation <br /> compound is shown on Figure 3 The SVE lines were stubbed up into a manifold in the remediation <br /> compound that were connected to the 500 scfin catalytic oxidizer Soil vapors are pushed by the <br /> vacuum blower though the catalytic oxidizer A thermal chamber fired by natural gas heats the <br /> catalytic oxidizer bed Soil vapor extraction was initiated at the Site on September 26, 2002, under <br /> San Joaquin Valley Air Pollution Control District (SJVAPCD) Authority to Construct number <br />' N-4613-1-0 <br />' The 20 ozone sparge pipes were stubbed up into a manifold and connected to the 6 cfm ozone sparge <br /> slid and ozone generator Ozone sparging was initiated at the Site on November 20, 2002 <br /> Additional details of the remediation well installation and system startup are described in Secor's <br /> Remediation Well and Soil Vapor Extraction System Installation Report, dated November 27, 2002 <br /> Domestic Wells <br /> Four domestic water supply wells (DW-1 through DW-4) and one destroyed donnestic water supply <br />' (DW-2R) well are located within 340 feet of the former tank pit(Figure 2) <br /> Well 4 Location from Tank Pit Comments <br /> DW-1 90 feet west of tank pit Upgradient of tank pit (onsite well) <br />' DW-2 120 feet south of tank pit Downgradient well (well destroyed) <br /> DW-3 245 feet south of tank pit Downgradient of tank pit <br /> DW-4 340 feet south of tank pit Downgradient of tank pit <br /> IDW-2R 200 feet south of tank pit Downgradient of tank pit (well installed <br /> December, 2000 to replace DW-2) <br /> Water samples collected from domestic wells have been analyzed for the presence of BTEX, TPHg, <br /> five oxygenates, 1,2-DCA, and EDB Since water samples collected from DW-2 contained <br /> 1 reportable concentrations of MTBE,the well was taken out of service and replaced with DW-2R <br /> f <br /> I <br /> 1 <br /> 58643-06-01 -3- July 25 2003 <br />