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Response to WE-Site Remediation <br /> 'Chapin Brothers Inc. Page 2 t <br /> Prpppgal No.325.3 <br /> May 24,1995 <br /> performed yet (or at least satisfactorily), are listed below. I have also enclosed an <br /> expanded version of our Bid Response Form that has these tasks listed. The <br /> goallpurpose for these tasks are also listed so you can understand the reason for this <br /> work. <br /> ?'ask pu_ rpose <br /> Remedial Design Document Provide client with more complete design details <br /> Pilot Testing - VE & AS Provide accurate information for remedial design <br /> Waste Disposal - purge water Avoid accumulation of drums on site <br /> Install additional VEW To provide control of air flow in subsurface soil <br /> Utilities - install & O&M Installation should be bid & O&M can be very costly <br /> for some emission treatment units <br /> Groundwater Monitoring Required during course of site Remediation <br /> Spike Testing Remedial effectiveness is typically done by both <br /> spike testing and soil testing <br /> Data Analysis & Reporting Without this task, the regulators are in the dark <br /> and reimbursement is jeopardized <br /> Project Management Any project is only as good as the planning & <br /> supervision <br /> Site Closure Work Costs for system removal and well closure <br /> Scope of Services <br /> Task I. Installation of Remedial System <br /> • One additional air sparging well will be installed to a depth of 40 feet. <br /> Trenches will bre constructed and below ground piping installed to connect two <br /> vapor extraction wells and two air sparge wells to an internal combustion engine <br /> and air sparge pump located along the west side of the building. <br /> • Install the VETS/AS unit inside the fenced enclosure on the west side of the <br /> building as shown in the attached site map. i <br /> Utility service (natural gas and electrical) will need to be installed before the VETS 1 <br /> can be installed. This work was not specified in the scope of work identified in <br /> the bid request, so has not been included in our bid response. <br /> Task 2, Vapor Extraction'Treatment System/Air Spargi ng System Rental <br /> The recommended emission treatment system for this site is a Thermal Oxidizer <br /> (TO) unit rated at a minimum of 250 Scfm should be to treat hydrocarbon <br /> emissions. The system will utilize a positive displacement blower to obtain a <br />