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Table 4 <br /> PROPOSED PROCESS CRITERIA <br /> Process Media Flow Rate Pressure Radius of <br /> Description Per Well Influence <br /> (scfm) (ft) <br /> ' Air Spargmg Groundwater 10 12 psig 60 <br /> Soil Venting Soil and Soil Vapor 25 55-m H2O vacuum 75 <br /> ' Vapor Treatment Soil Vapor 25 5 psig NA <br /> t (1) Total <br /> NA Not applicable <br /> 4.1.1 Air Sparging <br /> The remediation system will utilize existing sparge well SP-1 The sparge <br /> well will be connected to an air compressor in the equipment area The air <br /> ' sparge well was installed using hollow stem auger drilling techniques and <br /> constructed according to the Well Details Appendix C, (Sheet 5) The well <br /> location was selected to effectively remediate the most impacted <br /> groundwater and allow for vapor control by the venting well The sparge <br /> well was constructed to a depth of approximately 63 feet BGS with the <br /> bottom two feet of the well constructed of 0 020-inch polyvinyl chloride <br /> (PVC) slot screen <br /> An oil-less air sparging compressor will be utilized The sparge compressor <br /> ' will be capable of producing at least 10 scfm at 12 psig The sparging <br /> compressor will be equipped with all necessary flow meters, pressure gauges, <br /> pressure relief valves, flow control valves, filters and piping <br />,1 <br />' 4.1.2 Soil Venting <br /> The venting system will consist of a vent well connected to a venting blower <br /> Vent well VW-1 is constructed of 4"diameter PVC and is screened between <br />' <br /> ]Sand 45 feet below ground surface Its location in the source area and its <br /> proximity to air sparging well SP-1 make it particularly suitable for use as an <br /> SVE well The previous SVE pilot test(1994) was performed using MW-1 <br /> Remedial Action Work Plan <br />' Prepared For THE EARTur_RmNs commAKY Prepared by Philip Services Corp <br /> H lENV1624001451RAP61300 doc 11 8/31100 <br />