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HomeMy WebLinkAboutWorkshop #1 PresentationWater Filtration Plant Clearwells Replacement May 2021 Agenda •Meeting Purpose •Project Overview •Working with the Planning Commission •Look Ahead Meeting Purpose •Provide information to the Planning Commission about a major upcoming Water Filtration Plant (WFP) project •Answer questions about the project •Gather Planning Commission input on building architectural concepts Oshkosh Water System Need for Clearwells Replacement •Wisconsin Department of Natural Resources (WDNR) notified the City the clearwells do not comply with current state statutes •Treated water storage is below groundwater & below the 100-year flood plain •The high lift pump stations’ wetwells are similarly deficient Need for Clearwells Replacement •Water Filtration Plant clearwells are 60 to over 100 years old Buried Clearwells CT/BWS Basin Holding Tank Sedimentation Basins CT/BWS = Chlorine Contact Time/Backwash Supply Clearwells Replacement Project Development •2007 Clearwells deficiency notice from WDNR •2008-2010 Major WFP Project (construct CT/BWS Basin, demolish old plant) •2012-2016 Water System Planning Studies & Clearwells Replacement Preliminary Design •2017 Clearwells Replacement Design & Permitting <Public Service Commission required justification for pump station capacity, given historic water use> •2018-2019 Water System Capacity Planning Study (new demand forecasts) •2020 Revise Project Scope for New Design Criteria •2021 Project Redesign and Permitting 2017 Project •Replace 2.4 million gallon (MG) finished water storage with 2.0 MG •Add 16 million gallons per day (mgd) intermediate pump station •Replace 17.3 mgd high lift pumping capacity with 16 mgd •Replace two existing 750 kilowatt (kW) generators with two 1,000 kW generators 2017 Project •Information meetings with City Common Council, Planning Commission, Neighborhood •City Planned Development Application •City Zoning Map Amendment •City Site Plan Review 2021 Project •Replace 2.4 MG finished water storage with 2.0 MG •Replace 17.3 mgd high lift pumping capacity with 13.7 mgd •Add 13.7 mgd intermediate pump system located with high lift pumps in single structure •Replace two existing 750 kW generators with two 1,000 kW generators •Replace oxygen storage and ozone generation equipment •Comply with new building, fire, electrical, mechanical codes 2021 Building Concepts –Option 1 2021 Building Concepts –Option 1 2021 Building Concepts –Option 2 2021 Building Concepts –Option 2 Next Steps •Re-introduce project to City Common Council, and the public (Neighborhood Meeting) •Complete redesign, permitting documentation for City, WDNR, and PSC •Apply for Planning Commission approval fall 2021 •Construct project 2022-2024 Questions?