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Metropolitan Wastewater Management Commission Capital Improvement Program <br /> <br />TERTIARY FILTRATION - PHASE 1 <br />Description: <br /> The phased work program will install infrastructure/support facilities for 30 mgd of filters for <br />tertiary filtration of secondary treated effluent. The first phase/project will only install filter <br />system technology sufficient for 10 mgd of treatment. Future projects will install the remaining <br />filter technology. Some of the project funding will support the treatment plant landscape <br />upgrades. <br />Status: <br />The Tertiary Filtration (Phase 1) project is in the construction phase and Pacific Excavation, Inc. <br />is the MWMC general contractor. <br />Justification: <br /> Up to 10 mgd of filtration is required in the first phase to meet dry season mass limits, with the <br />need for filtration increasing up to 30 mgd by the end of the planning period (2025). The 2004 <br />MWMC Facilities Plan proposes phasing filters on an as-needed basis. Filtration provides high <br />quality secondary effluent and potential level 4 reuse water. Also, filtration is needed to assist <br />with meeting wet season mass load requirements during peak flow events. <br />Project Driver: <br />Performance reliability to meet the dry weather NPDES total suspended solids limits of less <br />than 10 mg/L, reuse development, and compliance with effluent limits during peak flow <br />conditions. <br />Project Trigger: <br />NPDES permit compliance for TSS: Dry weather maximum month flow in excess of 49 mgd. <br />Also, initially to provide higher quality effluent so that reuse can be developed. <br />Improvement SDC Eligibility: <br />42% <br />Estimated Project Cost <br />: Reduced to $11,500,000 (Note: Part of the project money will support the treatment <br />plant <br />landscape upgrades. Also, MWMC received a DEQ state revolving fund (SRF) loan for <br />the tertiary filtration project). <br />Expected Cash Flow: <br />FY 07-08 = $236,186; FY 08-09 = $554,241; FY 09-10 = $647,844; FY 10-11 = <br />$4,544,729; FY 11-12 = $2,750,000; FY 12-13 = $60,000; FY 13-14 = $2,707,000 <br />(design, construction, landscape, administration, etc.) <br />2010-11 <br />Expenditure/Category:Prior YearsEst. Act.2011-122012-132013-142014-152015-16Total <br />Design/Construction $1,438,271 $4,544,729 $5,517,000 0000$11,500,000 <br />Other 00000000 <br />Total Cost $1,438,271 $4,544,729 $5,517,000 0000$11,500,000 <br />Page 56 DRAFT FY 11-12 BUDGET AND CIP <br />