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Mr . Michael Nixon Geosyntec ° <br /> 22 November 2010 " ' "S` II "' " " <br /> Page 4 <br /> • provide a mobile laboratory (one day) at the time of start-up of the dewatering fluids <br /> treatment equipment to document that the dewatering treatment system meets discharge <br /> standards ; <br /> • perform activities associated with the proper closure and off- site disposal of the three , <br /> 8 , 000- gallon USTs , including required soil and groundwater sampling ; <br /> • excavate petroleum contaminated soil from two areas , with soil sampling and off.- site <br /> disposal of soil to the IRC Class I landfill (NOTE : Costs for the transport of the <br /> excavated soils to the IRC Class I landfill are included in this proposal ; however, <br /> this proposal assumes costs for the disposal of the excavated soils [ tipping fee (s) ] <br /> will be handled internally by IRC) ; <br /> • provide and place clean backfill (in compacted 6 -inch lifts) , perform soil density testing ; <br /> and , <br /> • perform the required sampling of two temporary groundwater monitoring wells in the <br /> excavation areas and remove wells upon completion of sampling activities . <br /> Geosyntec will subcontract UST closure/source removal services to HCC , perform oversight of <br /> the subcontractor during field activities , conduct required soil and groundwater sampling <br /> activities and flame ionization detector (FID ) monitoring in accordance with FDEP <br /> requirements . Geosyntec will document construction progress and ensure that activities are <br /> completed in accordance with the plans and specifications and perform all soil density testing <br /> activities during backfilling . Due to the uncertainties associated with the source removal <br /> activities , a 20 percent contingency has been added to the Task 2 costs . The contingency is in <br /> place to cover items such as increased excavation volumes (based upon the discovery of <br /> additional petroleum- contaminated soil during excavation) , increases in project duration due to <br /> weather , etc . Geosyntec will notify IRC of any field conditions that may require accessibility of <br /> contingency fees . Geosyntec ' s proposal assumes 20 days of project related field work/oversight <br /> activities associated with the UST closure/source removal activities . A detailed breakdown of <br /> estimated project costs is included as Attachment B . <br /> XR 10109/CCR 10080 . DOC <br /> engineers I scientists I innovators <br />