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MW1, MW2, MW4, MW6b, MW6c, MW7a, MW7b, MW7c, MW10b, and EW1 contained <br /> detectable concentrations of 1,2-DCA <br /> Analytical results of groundwater samples are summarized in Table 2 Laboratory data sheets and <br /> chain-of-custody documentation are contained in Attachment 2 Isoconcentration maps depicting <br /> the TPHg and benzene in the A water bearing zone are presented in Figures 6 and 7 MTBE <br /> concentrations in the A, B, and C water bearing zones are presented in Figures 8, 9 and 10 <br /> respectively <br /> 3.0 GEOTRACKER DATA UPLOAD <br /> The site facility global ID number is T0607700858 The depth to water data was submitted <br /> electronically to the State Water Resources Control Board (SWRCB) Geotracker database <br /> (confirmation number 7665038883) and the laboratory data was also submitted electronically to <br /> the SWRCB Geotracker database (confirmation numbers 3807830274, 4462310194, and <br /> 1971389353 for April 22, 2005, May 25, 2005 and June 21-22, 2005 respectively) <br /> Documentation of the data submittal is contained in Attachment 3 <br /> 4.0 REMEDIATION SYSTEM O&M ACTIVITIES <br /> iThis section of the report presents the results of the O&M during the period of April through <br /> June 2005 for the ozone air sparging (C-SpargeTM) remediation system at the Jamar property <br /> The results of the remediation activities are also compared with conditions prior to start-up <br /> activities Cumulative data is discussed <br /> The C-SpargeTM process at the Jamar Property site is an in situ air stripping process using <br /> micro encapsulated ozone (03) This remediation technology combines the operations of air <br /> stripping and oxidative decomposition in a single process The C-SpargeTM process employs <br /> nano- to micro-sized bubbles of air-encapsulated 03, created by forcing an air/ 03 mixture <br /> through SpargepointsC' into soil or groundwater <br /> I <br /> The primary documents for the design, installation, operation and monitoring of the Jamar <br /> property are <br /> ■ GHH Engineering Inc 's Interim Groundwater Treatment System, Jamar Service, 4075 <br /> East Main, Stockton, California, dated October 2003 <br /> ■ ATC's Remediation System Installation Report for Jamar Property, 4075 East Main <br /> Street, Stockton, California dated 27 May 2003 <br /> i <br /> I <br /> S 1268231QM reports12005 2ndQR doe 4 <br />