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WSB PROJECT EXPERIENCE EXAMPLE <br /> Lime Softening Water Treatment Plant Improvements <br /> CLIENT: CITY OF TONKA BAY <br /> LOCATION: TONKA BAY, MN <br /> DURATION: DEC 2019 <br /> �' Z+. - .. •.„lam�.-- <br /> Rim-.. x <br /> i <br /> WSB evaluated,designed,and provided construction WSB STAF GREG JOHNSON, JON CHRISTENSEN, GREG <br /> services for improvements to an existing 1,000 gallon per GLUNZ <br /> minute(gpm)lime softening water treatment plant(WTP). <br /> The WTP was originally constructed in 1972 and <br /> included a lime silo,lime slaker,clarifier(contact basin), <br /> recarbonation basin,three filters, backwash reclaim,and <br /> a clearwell.Given the plant's age,several process and <br /> electrical components were in very poor condition and <br /> made it difficult for the city to deliver consistent water <br /> quality.After careful evaluation of the existing conditions <br /> and improvement alternatives, it was decided to upgrade <br /> the existing pebble lime feed system to a hydrated <br /> lime feed system,to replace several of the process and <br /> electrical components,and to rehabilitate the existing <br /> building structure and architecture.The updated <br /> process and electrical equipment will allow for greater <br /> automation of the treatment processes and will reduce <br /> the operational burden on city staff. <br /> A Proposal for Design,Bidding,and Construction Administration for a <br /> Water Treatment Plant for City of Lino Lakes Relative Experience,Qualifications,&References 129 <br />