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City of Missoula, Montana Item to be Referred to City Council Committee Committee: Conservation Item: Currents UV Purchase & Installation Date: June 21, 2010 Prepared by: Eric Seagrave Initiated by: Eric Seagrave Action Required: Approve the purchase and installation of a Ultra-violet Light Sanitation system on the pool water circulation line at Currents Water Park. Recommended Motion: I move the City Council approve the purchase and installation of an Engineered Treatment Systems (ETS) UV System (Model #ECF 225-8) by Rocky Mountain Pools & Spas of Kalispell, Montana for the total $38,810. Timeline: Referral to committee: June 24, 2010 Committee discussion: June 30, 2012 Council Approval: July 12, 2010 Background and Alternatives Explored: When Currents Water Park was first designed and engineered, the plan included the installation and use of an Ultraviolet Light Sanitation System to supplement the chorine sanitation of the pool water. The system was cut out of the project to help manage construction costs within budget. The plumbing for the unit was left in the project in anticipation of installation at a later date. In 2009, after all invoices were paid for all phases of the aquatics project, a total of $90,000 remained in the original construction budget for the aquatic facilities. Because of the demand to retrofit the facilities to accommodate the newly established Federal Virginia Graham Baker Act, the UV system was put on hold. After completion of the VGB upgrades, there remains $55,000 in the original construction budget. We ask to use $38,810 of this money to purchase and install the UV system as was originally intended with the facility design. The system provides for increased destruction of contaminants to the pool water which further enhances the quality of the water for swimmers. Financial Implications: Use of a UV system at Currents will provide superior disinfection of the pool water, as well as assist in maintaining the lifespan of the building envelope. Patron comfort should be improved by reducing the by-products of the Health Code required chlorine sanitation that already exists. Any costs savings achieved by reducing the chemical levels required to maintain the water will be countered by increased electrical usage to operate the system. ---PAGE BREAK--- The clarity of the water and the reduction of air borne chlorine-radicals should enhance the enjoyment and well being of facility patrons and may increase attendance revenue because of it. Attachments: ECFII Unit