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Project Name: Secondary Clarifier Enhancements <br /> <br />Description: Baffle, add inlet energy dissipation, change out flocculation well, construct <br /> outboard launder, and retrofit suction header for existing 8 clarifiers. <br /> <br />Justification: Enhancing the existing clarifiers will increase the secondary treatment <br /> capacity, alleviate current operational problems, and will maximize the <br /> facilities investment in existing infrastructure. <br /> <br />Project Driver: Increase capacity of secondary treatment for base flows and for peak <br /> flows. Improve effluent quality and performance reliability to meet the <br /> current NPDES total suspended solids limits. <br /> <br />Project Trigger: Average secondary clarifier surface overflow rates exceeding 750 gpd/sf <br /> or wet season maximum month flows exceeding 80 mgd. <br /> <br />Type of Project 50% Capacity; 50% Performance <br /> <br />Estimated Project Cost $5,300,000 <br />(2004 Dollars): <br /> <br />Phasing: Budgeted for FY2004/05 <br /> <br />Project Name: Primary Clarifier Enhancements <br />Description: Baffling of primary clarifiers and remove hydraulic restrictions. <br /> <br />Justification: Enhancing the existing clarifiers will increase primary treatment capacity <br /> and will maximize the facilities investment in existing infrastructure. <br /> <br />Project Driver: Increase capacity to treat base and peak flows and improve effluent <br /> quality and reliability so that a blended primary and secondary effluent can <br /> meet the current NPDES total suspended solids limits. <br /> <br />Project Trigger: Primary clarifier surface overflow rates exceeding 1500 gpd/sf, or total <br /> plant influent flows exceeding 86 mgd. Hydraulic restrictions removed <br /> when peak wet weather flows exceed 200 mgd. <br /> <br />Type of Project 100% Capacity <br /> <br />Estimated Project Cost $1,200,000 <br />(2004 Dollars): <br /> <br />Phasing: Budgeted for FY2004/05 <br /> <br /> <br />