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PRIMARY SLUDGE THICKENING <br />Faciliiv Process Component <br />Primary Treatment <br />$3, 910, 946 <br />Total Cost <br />Costs EXPEND- 2004-05 2005-06 2006-07 2007-08* 2008-09 TOTAL <br />ITURES <br />Design & Engineering <br />Construction 391,095 391,0 <br /> <br />FUNDING SOURCE TOTAL 0 3 519 852 3 519 8 <br />0 0 0 3 910 946 0 3 910 9 <br />Capital Reserve <br /> TOTAL 0 ~ 3 910 946 3 910 9~ <br />0 0' 3 <br />910 <br />946 0 <br />" <br /> , <br />, <br />3,910,9 <br />Inflated from FY 04-05 costs at 2.8% per year (Engineering News Record factor) <br />PROJECT: Primary Sludge Thickening Outside of Clarifi <br />s <br /> er <br />DESCRIPTION: Thin primary sludge pumping and piping systems to gravity thickeners <br />two <br />50' f <br />t <br /> , <br />, <br />oo <br />diameter gravity thickeners (covered for odor control), supernatant overflow <br />i <br /> pump <br />ng and <br />piping, thickened sludge piping/pumping to digesters. See Odorous Air Treatment f <br /> or <br />treatment of odors. <br />JUSTIFICATION: One of the projects that increases capacity of existin <br />9 primary clarifiers from ap <br />roxim <br />t <br />l <br />10 <br /> p <br />a <br />e <br />y <br />3 mgd to 165 mgd. <br />PROJECT DRIVER: ~ All peak wet weather flows must receive <br />rima <br />t <br /> p <br />ry <br />reatment prior to diversion and effluent <br />blending to meet the current NPDES permit f <br />t <br />t <br /> or <br />o <br />al suspended solids. <br />PROJECT TRIGGER: Primary clarifier surface overflow rates exceeding 1800 gpd/sf: Sustained wet weath <br /> er <br />flows through the primaries in excess of 103 mgd after baffling improveme <br />t <br /> n <br />s are made. <br />TYPE OF PROJECT: 100% Capacity <br />ESTIMATED PROJECT COST $3,600,000 <br />(2004 Dollars): <br />INFLATED PROJECT COST $3,910,946 <br />(2007 Dollars): <br />PHASING: Budgeted for FY 2007/08 <br />Page 58 FY 04-OS BUDGET AND CIP <br />