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<br />The City will need to evaluate the ideal size of storage to construct considering the <br />ultimate location and financial capabilities at the time. There is expected to be an <br />economies-of-scale savings in constructing a larger reservoir. The City can also cost <br />share with the Town of Hudson. <br /> <br />TreatmentPmntExoansion <br /> <br />One of the City's goals is to increase the WTP efficiency. More specifically, the existing <br />WTP does not recover 7.50/0 to 80/0 of the raw water entering the plant. By definition, <br />efficiency used herein is the amount of water delivered to customers following treatment <br />divided by the amount of raw water coming into the plant. In simpler terms, 92 to 92.5 <br />out of every 100 gallons delivered to the WTP gets delivered to customers. This <br />inefficiency impacts all phases of the City's water and wastewater utilities from raw <br />water supply through wastewater treatment. We recommend the City strive to increase <br />this efficiency to 980/0. <br /> <br />The impact of increasing the efficiency of the WTP is significant in virtually every aspect <br />of the City's water and wastewater utilities. To fully realize these benefits, the City must <br />have a filter unit dedicated to recovering the water currently being sent to the WWTP. <br />This will require the City to construct a separate backwash recovery system. <br /> <br />To determine when the next WTP expansion is required, we have assumed the City has <br />four and a half filter units available, with a total net production capability of 3.87 MGD <br />(five filters at 0.86 MGD less 0.43 MGD to the Town of Hudson). Accordingly, at a 30/0 <br />population growth rate as assumed throughout this study, the City will need additional <br />filtration capacity within the next ten years. We have recommended the City install two <br />additional two filter units before 2016. The piping for this project was planned for in the <br />last plant expansion. <br /> <br />Table 5.2 - WTP Expansion, Opinion of Probable Construction Costs <br /> <br />Item Quantity Unit Unit Cost Item Cost <br />Mob/Demob and general contract requirements 1 LS $50,000 $50,000 <br />Earthwork, grading and misc. sitework 1 LS $100,000 $100,000 <br />Valve and piping modifications (existing filters) 1 LS $50,000 $50,000 <br />Process piping and valves for new filters 1 LS $200,000 $200,000 <br />90M 1 OC units 2 LS $300,000 $600,000 <br />Electrical, controls and instrumentation 1 LS $150,000 $150,000 <br />Plant SCADA / PLC control system upgrades 1 LS $40,000 $40,000 <br />Telemetry system improvements 1 LS $15,000 $15,000 <br />Backwash recovery system 1 LS $750,000 $750,000 <br /> Subtotal $1,955,000 <br />Design and Construction Contingencies (200/0) $391,000 <br />Contractors Overhead and Profit (150/0) $293,250 <br />Construction Cost Subtotal $2,639,250 <br />Engineering - Design Phase Services (80/0) $211 ,140 <br />Engineering - Construction Phase Services (40/0) $105,570 <br /> Total $2,955,960 <br /> <br />Clear Water Solutions, Inc. <br />City of Fort Lupton <br />2007 Water Conservation Plan <br /> <br />30 <br />