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t <br /> i <br /> Based on start-up TPH-as-Gasoline vapor concentrations, a thermal oxidizer would provide the <br /> most economical initial processing and atmospheric discharge of treated extracted soil gas At a <br /> flow rate of 10 scfm per well, the anticipated TPH-as-Gasoline mass extraction rate would be 216 <br /> ppd for the full system <br /> Based on the findings of this PAR and CAP Ramage Environmental recommends the following <br /> 9 � 9 9 <br /> course of environmental corrective action <br /> 1 Upon regulatory approval of this PAR/CAP document, prepare a set of engineering plans for <br /> the design of the sod vapor extraction system In addition, the air quality permitting and utility <br /> service applications should also be submitted The cost for these tasks has already been pre- <br /> approved by the UST Cleanup Fund <br /> 2 The design plans should be combined with the PAR/CAP document and used as part of a bid <br /> package for the solicitation of at least 3 bids to construct and operate the system The bids <br /> should be submitted to the UST Cleanup Fund for review and cost pre-approval <br /> 3 Upon UST Cleanup Fund pre-approval, the contractor should construct, start-up, operate and <br /> maintain the system as specified in the design plans and bid specifications, and in accordance <br /> with the permits to construct and operate the system <br /> 4 Quarterly groundwater monitoring and sampling should continue The cost of 3 additional <br /> quarters of monitonng and sampling has already been pre-approved by the UST Cleanup <br /> Fund <br /> 1 <br /> 1 <br /> 11 <br /> ' 19 <br />