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1 <br /> of this report The configuration of the proposed remediation system is <br /> shown on Sheet 3 A process flow schematic is provided on Sheet 6 <br /> 2.3 Air Sparging <br /> The remediation system will utilize six sparge wells including existing <br /> sparge well SP-1 and 5 new sparge wells (SP-2 through SP-6) that will be <br /> installed The sparge wells will be connected to two air compressors in the <br /> equipment trailer The air sparge wells will be installed using hollow stem <br /> auger drilling techniques and constructed according to the Piping and Well <br /> Sections (Sheet 5) Well locations have been selected to effectively <br /> remediate groundwater and allow for vapor control by venting wells The <br /> new sparge wells will be set at a depth of approximately 75 feet BGS with <br /> the bottom five feet of the well constructed of 0 020-inch polyvinyl chloride <br /> (PVC) slot screen <br /> 2.3.1 Sparging Compressors <br /> Two sparging compressors will be manifolded together, each with the <br /> capacity to provide sufficient air to operate the entire sparging system The <br /> compressors will be controlled by a timer so that sparging into the aquifer <br /> can be pulsed, if desired An alternator in the control panel will also be <br /> used to switch the lead/lag compressor, if desired A pulsed sparge effect <br /> has been shown at some sites to increase the effectiveness of the <br /> groundwater remediation by minimizing channeling Alternating the <br /> lead/lag compressor will reduce wear on one compressor <br /> The sparge compressors will each be capable of producing 36 cfm at 35 <br /> psig Filters will remove oil and particulates from the air being infected <br /> into the sparge wells The compressors, control valves, flow meters, and <br /> pressure gauges will be mounted in the enclosed equipment trailer <br /> 2.4 Soil Venting <br /> The venting system will consist of four existing wells (MW-1, MW-3, <br /> MW-4, and MW-7) connected to two venting blowers located in the <br />' enclosed equipment trailer The venting wells each have a minimum of 25 <br /> to 30 feet of screen in the vadose zone <br /> Final Remediation Plan <br /> Prepared for RAINBo BAKING COMPANY 4 Prepared by Burlington Environmental Inc <br /> E 11213821125997UESUVAL DOC 2!1195 <br />