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The results of the rebuild have shown a higher efficiency in particle removal rates and longer run times <br />between backwashing. In conjunction with sedimentation basin baffling, the rebuilt filters are anticipated to <br />achieve an additional 1 mgd of production per filter. The typical cost per Filter is listed below. <br />Labor $ 42,000 SDC Funded $ 0 <br />New Stainless Steel Underdrains $ 90,000 Rate Funded Capital $200,000 <br />New Filter Media $ 40,000 <br />Other Material $ 8,000 <br />Equipment $ 5,000 <br />Administration 15 000 <br />Total $200,000 <br />Hayden Bridge Seismic Upgrades <br />OBEC Consulting Engineers conducted The Hayden Bridge Filtration Plant Structural Inspection and Load <br />Rating Study (April 30, 1999). All recommendations for structural and seismic upgrades are presented in the <br />Hayden Bridge Expansion Plan. Top priorities were structurally repairing the south filter bank constructed in <br />the 1970s and adding pipe supports throughout the' plant to prevent pipe failures during a seismic event. This <br />project does not include south filter bank upgrades. <br />Engineering $ 15,000 SDC Funded $ 0 <br />Pipe Supports {tie downs, etc.) $115,500 Rate Funded Capital $145,000 <br />Inspection ~ $ 5,000 <br />Administration 9 500 <br />Total $145,000 <br />Hayden Bridge South Bank Filter Structural Upgrade <br />As identified in the Hayden Bridge Filtration Plant structural Inspection, the south filter bank needs to be <br />upgraded due to poor design and construction methods. <br />Engineering $ 73,000 SDC Funded $ 0 <br />Construction $460,000 Rate Funded Capital $591,000 <br />EWEB Labor $ 30,000 <br />Administration 28 000 <br />Totat $591,000 <br />Hayden Bridge Mechanical Study <br />The Hayden Bridge plant is over 50 years old and a complete study of the.mechanical systems, i.e., valves, <br />- `..hangers, support systems, intake pumps and screens should be evaluated for aging; obsolescence, and corrosion. <br />Out of this report will come recommendations for capital,projects for the 5-year capital plan... ; ~, , ; - <br />Engineering (contract) $50,000 SDC Funded $ 0 <br />EWEB Labor $15,660 Rate Funded Capital $72,600 <br />Administration 6 940 <br />Total $72,600 <br />Hayden,Bridge Back-up Generator. , <br />The existing back-up generator. is .approaching 50 years old and is undersized :for current operational needs at <br />Hayden Bridge during an electrical outage. The new generator will be sized to operate the modern house plant <br />and perhaps a small finished -water pump. ' <br />Water Division -Five-Year Capitallmprovement Plan <br />8 <br />