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CGe0&gkaI naAtcs lsc. Page 10 <br /> ' IRAP—Pilot Test <br /> Project No. 425.2 <br /> March 21,2005 <br /> ' 4.11 Treatment System Location <br /> ' The Soil Vapor Extraction equipment including the Activated Carbon Units will be placed <br /> inside the locked fence. The ozone generator will be placed inside the existing building for <br /> security. <br /> ' 4.12 Installation & Startup <br /> ' All the OS wells will be plumbed with s flexible Teflon pipes to the ozone generator. The <br /> flexible Teflon pipes will be drawn through 3-inch diameter PVC conductor piping. The <br /> ozone sparging manifold will be divided into two sets. Manifold No. 1 will handle OS wells <br /> from OS-1 thru OS-4 and Manifold No. 2 will handle OS wells from OS-5 thru OS-8. <br /> Appropriate permit(s) from San Joaquin County and SJVUAPCD will be obtained prior to <br /> startup of soil vapor extraction and treatment system. The vapor extraction vacuum will be <br /> ' kept low enough to ensure that the vapor extraction system is not causing any affect on ozone <br /> sparing system effectiveness. 4,, 1' <br /> ' 4.13 Operation & Maintenance <br /> GTI staff will maintain and monitor the operation of the entire system. <br /> ' 4.14 Treatment System Monitoring <br /> ' The proposed monitoring schedule is as follows: Note: This monitoring schedule may be <br /> adjusted according to requirements of the SJVUAPCD permit. <br /> ' VETS <br /> • Weekly for the first month with monitoring of the VETS effluent by a hand held Organic <br /> ' Vapor Meter(OVM). This is to ensure that the effluent levels do not exceed SJVUAPCD <br /> permit levels. <br /> • After the first month, monitoring of effluent by OVM on a monthly basis. <br /> ' • One sample will be analyzed per month by a California certified lab. <br /> Ozone SnarQe System <br /> ' Inspection events (by GTI staff)will include monitoring of the following parameters: <br /> • all performance functions of the treatment system <br /> • measuring and recording gas flow <br /> ' Depth To Water Measurements <br /> • On site and off site monitoring wells will be monitored on a weekly basis for the first <br /> month to ensure that significant groundwater mounding that could spread the <br /> contamination is not occurring. <br /> • Subsequently, on a monthly basis the depth to water will be measured. <br />