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9/12/2022 <br />Potential Water System Needs <br />• Existing Conditions <br />- Majority of residents on private wells <br />- Recent MPCA and MDH sampling for 1,4-dioxane, a <br />likely human carcinogen, found levels above the <br />MDH health -based guidance value in some private <br />wells <br />• Municipal Water Supply Feasibility Study update <br />completed to evaluate potential options for providing <br />safe and reliable drinking water to residents <br />SPA Nita td a thY IaAfl ti <br />Potential Water System Needs <br />• Municipal Water Supply Feasibility Study evaluated <br />the following options: <br />A centralized water distribution system <br />• Serving the entirety of Gem Lake with water supplied solely <br />from one of the neighboring community water systems <br />- Options for smaller, localized water supply projects <br />• Could be phased to provide water service to portions of the <br />City with known well water quality concerns <br />Al <br />SFh hweaMeMll AlaW <br />Potential Water System Needs <br />• Centralized water distribution system options <br />Sconano Opin on of Probable <br />Construction Cost <br />Centralized Distribution System — $10,455.6,114111 <br />White Bear Lake Connection <br />Centralized Distribution System — $10,965,834 <br />White Bear Township Connection <br />Not- <br />(1) Estimated costs are Gees 4 Feasibility Estimates as defined by MCE cost <br />estx n ile dassilcation system. with an expected accuracy range of -30%to <br />+50%based on project definition (up to 15 % complete design) level <br />analysis. <br />2 <br />