Laserfiche WebLink
Work Plan for Refined Plume Definition and Management of Floating Product-7500 W 11th St., Tracy, CA. Page 73 <br /> Y g <br /> �. <br /> original condition within three weeks eeks from that mobilization date. Well closure permits and <br /> permits for rescission of encroachment permits in the public highway and closure of the <br /> extraction wells by the drilling contractor can proceed in parallel with that work. An <br /> engineering closure report for the remediation system would be available 60 days after the <br /> contractors withdraw from the site. <br /> 9.4.3.9 Estimated Cost: <br /> SJC has prepared an engineer's estimate for implementation of a program of skimming <br /> LNAPL from extraction wells and storing the product in an on-site holding tank. The <br /> estimate is detailed in Appendix A and is summarized below. <br /> CAPITAL COST <br /> Capital Cost $107,500 <br /> (Including final engineering design, <br /> system construction and <br /> equipment installation, <br /> system commissioning and <br /> one month of operation) <br /> r <br /> Total Estimated Capital Cost $107,500 <br /> OPERATING COST <br /> Monthly System Operating Cost $ 3,950 <br /> Total Estimated Operating Cost $138,250 <br /> * Total operating costs for this remediation technology are difficult to estimate because <br /> it is not possible to accurately predetermine the rate at which emulsified LNAPL and <br /> �. groundwater will accumulate in the holding tank or the total operating time that will <br /> be required for this remediation system to remove all floating product from the <br /> subsurface. For budgetary purposes, a 5000-gallon, off-site transport of accumulated <br /> LNAPL will be scheduled after six month of system operation and annually thereafter <br /> over a total operating life of three years. <br /> CLOSURE COST <br /> System Closure Operations $15,450 <br /> (Including a final round of <br /> groundwater-quality monitoring, <br /> SJC <br />