New Search
SOUTH AERATION BASIN IMPROVEMENTS <br />Facility Process Component <br />Secondary Treatment <br />$6,900,000 <br />Total Cost <br /> PRIOR <br />Costs EXPEND- 2004-05 2005-06 2006-07 2007-08 2008-09 TOTAL <br /> ITURES <br /> <br />Design & Engineering 690 <br />000 <br /> <br />Construction , <br />6 <br />210 <br />000 690,000 <br /> <br />T , <br />, 6,210,000 <br />OTAL 0 .6,900 000 0 0 0 0 6 900 000 <br />FUNDING SOURCE <br />Capital Reserve 2,829,000 2 <br />829 <br />000 <br />Improvementment SDC Reserve 4 071 000 , <br />, <br /> <br />TOTAL <br />0 <br />6,900,000, <br />0 <br />0 <br />0 <br />0 4 071,000 <br />6,900,000 <br />PROJECT: .South Aeration Basin Improvements Design and Construction <br />DESCRIPTION: Add step feed, anoxic selectors, and fine bubble diffusers to south aeration basin. Remove <br />hydraulic restrictions in both south and north aeration basins (effluent gates). Includes <br />future primary effluent flow control gates for both north and south aeration basins. <br />JUSTIFICATION: <br />PROJECT DRIVER <br />PROJECT TRIGGER: <br />TYPE OF PROJECT: <br />ESTIMATED PROJECT COST <br />(2004 Dollars): <br />PHASING: <br />Increase the dry weather aeration basin treatment capacity to 65 mgd with respect to <br />ammonia (i.e., with nitrification) and increase the sustained (i.e., on a weekly basis) wet <br />weather treatment capacity to 130 mgd. <br />NPDES permit includes ammonia limit requiring nitrification in dry weather and expansion of <br />wet weather capacity to treat wet weather flows to meet NPDES monthly and weekly <br />suspended solids limits. <br />Maximum month dry weather flow of 25 mgd requiring nitrification. May flows and <br />temperatures could require the use of the south aeration basins in conjunction with the <br />north aeration basins. Peak wet weather flows above 103 mgd require hydraulic <br />modifications. <br />50% Capacity; 50% Performance <br />$6, 900, 000 <br />Budgeted for FY 2004/05 <br />Page 63 FY 04-OS BUDGET AND CIP <br />