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PRIMARY SLUDGE THICKENING <br /> <br /> Facility Process Component <br /> Primary Treatment <br /> <br /> $4,139,000 <br /> Total Cost <br /> PRIOR <br />Costs EXPEND- 2005-06 2006-07 2007-08* 2008-09 2009-10 TOTAL <br /> ITURES <br />Construction 4,139,000 4r139,000 <br /> TOTAL 0 0 0 4~139,000 0 4~139~000 <br />FUNDING SOURCE <br />Capital Reserve 3,639,000 3,639,000 <br />SDC Improvement Reserve 500~000 500,000 <br /> TOTAL 0 0 0 4,139,000 0 0 4,139,000 <br />* Inflated from 2004 by 6.3% to FY05-06 dollars (Engineering News Record factor) and 4% thereafter <br />PROJECT: Primary Sludge Thickening Outside of Cladfiers <br />DESCRIPTION: Thin primary sludge pumping and piping systems to gravity thickeners, two, 50' foot <br />diameter gravity thickeners (covered for odor control), supernatant overflow pumping and <br />piping, thickened sludge piping/pumping to digesters. See Odorous Air Treatment for <br />treatment of odors. <br />JUSTIFICATION: One of the projects that increases capacity of existing primary cladfiers from approximately <br />103 mgd to 165 mgd. <br />PROJECT DRIVER: All peak wet weather flows must receive primary treatment prior to diversion and effluent <br />blending to meet the current NPDES permit for total suspended solids. <br />PROJECT TRIGGER: Primary clarifier surface overflow rates exceeding 1800 gpd/sf: Sustained wet weather <br />flows through the primaries in excess of 103 mgd after baffling improvements are made. <br /> <br /> TYPE OF PROJECT: 100% Capacity <br /> <br /> ESTIMATED PROJECT COST $3,600,000 <br /> (FY 2004-05 Dollars): <br /> <br /> INFLATED PROJECT COST $4,139,000 <br /> (FY 2007-08 Dollars): <br /> <br /> PHASING: Budgeted for FY 2007/08 <br /> <br /> Page 64 FY 05-06 BUDGET AND CIP <br /> <br /> <br />