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Coating: Exterior re-coated in 1996, 2008 touched up welded areas & spot failures. <br /> Interior re-coated in 2008 with new filter media <br /> Air scour system installed in 2008 <br /> Recommendations for future filter coatings and repairs: <br /> • 2028 - Interior and exterior coating, new media <br /> The four City buildings mentioned have had minimal maintenance on them since they <br /> were built. This project includes the following improvements: <br /> • Painting the pipes and exterior filters <br /> • New Windows & Doors <br /> • Replace Heaters <br /> • Power Wash & Repaint Building Exteriors <br /> • Caulking <br /> New Brighton WTP's 3, 4, and 5 are very similar in design and function. One of the key <br /> differences between WTP 3 and 4 compared to WTP 5 is that WTP 5 is equipped with a <br /> backwash reclamation system. Filters 3 and 3A share a common backwash pit in WTP 3. <br /> It is proposed to install a water reclamation system in WTP's 3 & 4. This reclamation <br /> system will ultimately save the City money and not waste as much water to the <br /> environment and eliminate the need for discharge monitoring results permitting. <br /> Water Treatment Plant 3 filter treatment residuals are discharged after 24 hours detention <br /> in an open holding tank. The top clean water is currently discharged to county ditch#2. <br /> Water Treatment Plant 4 filter treatment residuals are discharged after 24 hours detention <br /> in an open holding tank. The top clean water is currently discharged to Jones Lake. <br /> WTP 4 and 5 have recently been refurbished with improvements including; new filter <br /> under drain, new filter media, baffle walls to increase detention time and paint coatings. <br /> Justification: Discharging water to the environment rather than recycling the water <br /> results in additional cost to the City in several forms including higher labor costs, <br /> associated permitting fees, lab testing fees, and additional energy consumption. <br /> Each of these facilities are all required to stay in a ready state at all times to be able <br /> supply water to the City of New Brighton. <br /> WTP 3 has not been refurbished to the extent of WTP 4 & 5, and given the age of the <br /> WTP 3 rehabilitation improvements will take place concurrently with the backwash <br /> reclamation system for WTP 3 and 4. <br /> 13 <br />