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Mr. Himanshu H . Mehta, P . E . <br /> 30 September 2011 <br /> Page 4 <br /> The wells will be developed until visually free of particulates , as observed by the on- site <br /> Geosyntec representative . It has been assumed that the well installation and development <br /> activities can be completed in five field days . <br /> Any soil investigation -derived waste (IDW), consisting of soil cuttings from well installation , <br /> will be placed in 55 - gallon drums, labeled , and placed at the Gifford Road Landfill for disposal <br /> by IRC SWDD . Any liquid IDW, including development water, will be transferred into the <br /> IP& T system and pumped into the IRC sanitary sewer system following treatment through the air <br /> stripper. <br /> Phase 3 — Iniection Activities <br /> EOS ® 598 has been selected as the optimal electron donor for this site . Based upon calculations <br /> presented in the RAPM Addendum No . 2 , EOS® 598 will be injected by Geosyntec personnel as <br /> a dilute solution directly into the injection wells and will remain active in the subsurface for a <br /> period of up to five years . The EOS® dosage will consist of the injection of twenty (20) 55 - <br /> gallon drums of EOS ® 598 solution at transect one, thirty- five (35 ) 55 - gallon drums of EOS® <br /> solution at transect three , and twenty-three (23 ) drums of EOS® solution in the former source <br /> area . The EOS® 598 solution will be diluted with site groundwater, with the injection of <br /> approximately 500 to 1 , 203 gallons of solution to each well . <br /> The electron donor solution will be delivered to each injection location via a trailer-mounted <br /> injection system which includes a mixing tank and centrifugal pump connected to a manifold that <br /> includes individual flow meters , pressure gages, and ball valves . During the performance of the <br /> injection work at each location, information regarding the injection start time , finish time , <br /> volume injected, and injection pressure will be recorded by Geosyntec personnel . It has been <br /> assumed that the injection activities can be completed in 18 field days . <br /> Phase 4 — Reporting <br /> Implementation of RAPM Addendum No . 2 will be summarized in the semi- annual groundwater <br /> monitoring report that follows completion of the implementation activities . UIC monitoring will be <br /> included with the semi- annual sampling events until criteria are met. Performance monitoring of <br /> CVOCs and TOC will continue to be included as part of the semi- annual sampling events . A limited <br /> budget has been included herein to incorporate a description of these activities and a summary of the <br /> results into the currently authorized semi- annual groundwater monitoring reports . <br /> UIC and Performance Monitoring <br /> Underground injection control (UIC ) monitoring is required after injecting remedial fluids into the <br /> aquifer according to Chapter 62- 528 of the Florida Administrative Code (F . A . C . ) . UIC monitoring <br /> XR11055\XRl 1072 <br /> engitice, rs ( ` t ictin st s ( irinovators <br />