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1 <br /> Working to Restore Nature <br /> I <br /> will be typically performed once every 2 weeks, or as needed over the operating life of the <br /> remediation systems Modifications to the schedule will be made if additional requirements <br /> are specified by the SJVUAPCD in the Authority to Construct/Permit to Operate for this <br /> site. Routine maintenance of the VES and air sparge system will be performed during these <br /> site visits and as needed <br /> Site inspections will typically include monitoring and adjustment of system parameters to <br /> optimize VES and groundwater treatment system efficiency, periodic sampling and field <br /> monitoring of influent and effluent as required by the SJVUAPCD, and other periodic <br /> maintenance to promote continued operation of the remediation equipment Parameters <br /> to be monitored and adjusted in the field will include vapor extraction flow rates, induced <br /> vacuum responses at onsite wells if applicable, and hydrocarbon vapor concentrations with <br /> an organic vapor monitor approved by the SJVUAPCD <br />' i Typical SJVUAPCD guidelines require that influent and effluent air samples to the VES <br /> be collected during the startup phase of the off-gas abatement unit to evaluate destruction <br /> efficiency of the unit To demonstrate compliance with SJVUAPCD regulations, the VES <br /> will likely be sampled at least once during the first week of operation, and once per month <br /> for the life of the remediation system. With the exception of influent and effluent air <br /> samples collected and analyzed as detailed above, during the first two days of operation and <br /> later on a biweekly and monthly basis, all other sampling of the VES will be conducted <br /> using a field organic vapor monitoring instrument approved by the SJVUAPCD If at any <br /> time the results of laboratory analyses or field monitoring readings show emission limits to <br /> be exceeded, a confirmation air sample will be taken immediately and analyzed on a 24- <br /> hour turnaround basis If emission limits are still exceeded, the system will be shut down <br /> and any necessary corrective action will be performed before repeating the startup sequence <br /> SJVUAPCD will be notified that emission limits were exceeded within 24 hours of such <br /> indication <br /> 3"3-13 13 <br />