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Mr Ron Rowe Proposal 22613-100 002 <br />• January 30, 1998 <br /> Page 5 <br /> USEPA Method 8020 The vapor samples will be submitted on a 24-hour <br /> turnaround basis <br /> • EMCON will prepare and submit a source test report to the SJVUAPCD and <br /> apply for a PTO <br /> Task 5 - Operation and Maintenance of the Remediation System- <br /> EMCON will perform O&M of the SVE system for 6 months Tasks will include the <br /> following <br /> e An EMCON technician will make weekly site visits during the first month of <br /> operation to check for stable operation of the SVE system and collect operational <br /> data After the first month, site visits will be performed on a biweekly (twice a <br /> month) basis for maintenance and data collection purposes Data collection will <br /> include measurement of flow rate and applied vacuum at each vapor extraction <br /> well and influent to the abatement device, measurement of induced vacuum at <br />. selected observation wells, and field monitoring of organic vapor and percent <br /> oxygen in extraction wells and the abatement device <br /> o An EMCON technician will collect air samples weekly for the first month and <br /> quarterly thereafter from the influent and effluent to the abatement device for <br /> laboratory analysis. Vapor samples will be collected from individual wells twice <br /> during the 6-month extraction period Vapor samples will be analyzed for TPHG, <br /> BTEX, and MTBE <br /> o EMCON will prepare quarterly reports presenting laboratory analysis results, field <br /> results of influent and effluent samples, destruction efficiency of the abatement <br /> device, radius of influence of the SVE system, evaluation of the decline of <br /> hydrocarbon concentrations from each vapor extraction well with time, and <br /> cumulative pounds and/or gallons of hydrocarbons removed. The original report <br /> will be forwarded to property owner, Mr Rodgers, and copies of the report will <br /> be distributed to the appropriate regulatory agencies <br /> SAON VJ2\2613\26131000 2AB-98Vbaccus 3 <br />