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r 0 <br />5. <br />7. <br />8 <br />9 <br />10. <br />Inspect the inlerk>r surfaces and equipmciu inside the filtniiKM) aiul softenii^ uaiis. <br />Sample and inspect the filler media, support j^ravels and /eoliie <br />granular medias. <br />FaciUlaie water quality samplii^ and testing of the raw water, filtered <br />water, softened water and fmislied water streams. Tliis will ilicn Ik* <br />used to assemble a "procets*wise” water cuality scIkmiuhc. <br />Determine the hydmilic capacity of the filtration unit, zeolite solteiiers <br />and plant piping. <br />Faciliiaie a pointed survey of the Navane water cu.stomers to <br />determine the number of point-of-eniry water softeners that arc in use. <br />The nesults may give some indication of tlie need for iIk* exi.Ming <br />zeolite softeners at the water plant. <br />Tabulate and review the quantity of chemicals used annually. <br />Propose and evaluate possible means of reducing tlie amount of <br />dissolved oxygen being intiwhiced in the aeraikm/filier inki portion <br />of the filtration unit. The cost of these options is to be compared to <br />the costs of feeding chemical corrosion inhibitors for reductioii of <br />copper. <br />Prepare a draft report of the project findings and recommendations fur <br />review with the City staff. liK’luded will lie cost estimates of all <br />improvement items. <br />Prepare final report. <br />Pciivttibte;Fifteen (LS) copies of the Water Treatnient Facility Evaluation Report <br />Con^nsaii We propose to perform this work for a lump sum amount of S16.4S0. <br />It is our feeling that mid to late Fall would be the best time to proceed with this project <br />because any improvement work could then be completed by early Spring. We cx|iect tliat <br />troprovemeni costs for the water plant will vary depending on tlieir nature and ex;eiil. If <br />the iropfovemenis are only replacement of filler media and repainting of tlie building <br />interior, the costs are likely not to exceed $60,000. If, however, this work is r <br />with replacement of some electrical controls and installation of an effective d^uniiditlj <br />system to control condensation and corrosion, the improvement