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Project Understanding <br />and Reproach <br />PROJECT UNDERSTANDING <br />The City of Ramsey currently gets its drinking water from eight Tunnel City/ <br />Wonewoc aquifer wells. This groundwater supply has historically provided <br />the City's public drinking water system with an abundant source of quality <br />water. In 2019, the Minnesota Department of Health informed the City that <br />several of its wells contained manganese in excess of the health advisory <br />standard. The City responded by taking five of the wells out of service <br />and only pumping water from the three wells with the lowest manganese <br />concentrations. Now the City has encountered elevated concentrations of <br />iron in these wells too, resulting in increased customer complaints of rusty <br />water. <br />In order to mitigate its iron and manganese problems, the City of Ramsey is <br />considering constructing a water treatment facility. A new water treatment <br />plant has been on the City's Capital Improvements Plan for several years, but <br />given the current manganese levels, the City may be interested in advancing <br />the scheduled timing of the facility's construction. <br />The City is proactively planning for a long-term solution to reduction of <br />iron and manganese concentrations in its public water system by taking <br />the first step — a feasibility study that identifies and evaluates options and <br />alternatives for a centralized water treatment plant. To assist with this <br />undertaking, the City is requesting proposals from qualified engineers to <br />evaluate Ramsey's total water supply and treatment needs and provide <br />alternate facility layouts for use in determining detailed estimates of project <br />cost for a centralized treatment facility. <br />The scope of this feasibility study will be to assess sustainability of the City's <br />current source water aquifer, create an updated computer model of its water <br />system and prepare a detailed preliminary design report of the proposed <br />centralized water treatment facility. As the project moves along, the selected <br />engineering firm will engage the City's water system customers in a public <br />information and education program. <br />Key Scope Issues <br />1 <br />2 <br />Assess sustainability of the <br />City's current source water <br />aquifer <br />Create an updated computer <br />model of its water system <br />Prepare a detailed preliminary <br />design report of the proposed <br />centralized water treatment facility <br />Engage the City's water <br />customers in a public information <br />and education program <br />SHORT ELLIOTT HENDRICKSON INC. 3 <br />