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Metropolitan Wastewater Management Commission Capital Improvement Program <br />SODIUM HYPOCHLORITE CONVERSION <br />'"~- Save, AYrTlu2 <br /> <br />_ opo <br />~PM N <br />~ B c r <br />\\\~ <br />n Ifra <br />~ <br />( Q , ., <br />1 <br />~~ <br />~ <br />~ <br />as.na <br />~C. 1~~ _... _ _ :.:_. ___., .... .. _..._ _ .._.._ .._ <br />.°S <br /> <br />• <br />/ <br />... .... <br /> <br />~ ~ <br />i <br />............. ._ _... ...... <br /> <br /> <br /> <br />1 ~ <br />; <br />1 <br /> <br />e <br />' 1 <br />.._.. ._ _~_ <br />P <br />... ..i <br />' <br />n <br />C~q~~ <br /> <br />,.. _ . .: <br />i <br />' --GravttY Holt <br />T.IeMa.wr Faeltlty <br />--~'Prstrar4nnn/' 11 ~ <br />'f ' <br />F xibty ,; <br />... ' <br />_ - <br />_ l... F.... j <br />(a. <br /> <br />- N <br />Project Phasing i <br /> EU<Ir: rxr Gp.ir.7ii.rlrl'.•IPf.F ~' <br /> <br />Description: Convert existing chlorine gas system to sodium hypochlorite for the base flow. Retain the <br />existing chlorine contact basins. Install system with capability for high rate disinfection of <br />PE diversion assuming high dosages of chlorine into a new chlorine contact basin. <br />Includes funds for landscaping in vicinity of improvements. <br />Justification: Liquid sodium hypochlorite and sodium bisulfate system will replace the existing chlorine <br />and sulfur dioxide gas systems and increase the disinfection capacity from 175 mgd to <br />277 mgd. The high rate disinfection of the primary effluent is a key component of the <br />primary/secondary split treatment, which is needed for meeting the flow capacity needs of <br />the plant. <br />Project Driver: Operator and community safety issues and meeting flow capacity requirements for 2010 <br />peak flows. <br />Project Trigger: Phasing with other related projects and need to meet 2010 peak flow treatment. <br />Project Type: 50% Capacity; 50% Performance <br />Estimated Project Cost: $12,760,000 <br />Expected Cash Flow: FY 07-08 = $2,400,000; FY 08-09 = $10,360,000 <br />'Prior <br />ExaenditurelCategory: .Years 2007-08 2008-09 2009-10 2010-11 2011-12 Total <br />Design/Construction 0 $12,760,000 0 0 0 0 $12,760,000 <br />Other 0 0 0 0 0 0 0 <br />Total Cost $0 $12,760,000 $0 $0 $0 $0 $12,760,000 <br /> Prior <br />Funding Source: Years 2007-08 2008-09 2009-10 2010-11 2011-12 Total <br />Capital Reserve 0 $12,760,000 0 0 0 0 $12;760,000 <br />EPA Grant 0 0 0 0 0 0 0 <br />SDC Reimbursement Reserve 0 0 0 0 0 0 0 <br />SDC Improvement Reserve 0 0 0 0 0 0 0 <br />Equipment Replacement <br />Reserve 0 0 0 0 0 0 0 <br />Total Cost $0 $12,760,000 $0 $0 $0 $0 $12,760,000 <br />Page 68 FY 07-08 BUDGET AND CIP <br />