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A. City-wide Sanitary Sewer System Plan was developed <br />for the City in May 2007. This plan provides for a <br />potential municipal sanitary sewer connection for <br />each part of the City that could possibly use gravity <br />flow sewer. This plan does require extensive <br />excavation and construction through some of the areas <br />of the City. <br />Figure 7.1 illustrates possible extensions to the sanitary <br />sewer system of Gem Lake. Any expansions to the system <br />would be connected to either the Vadnais Heights system or <br />the MCES belt line interceptors. The average daily flow of <br />the existing connections to the public system is 0.027 MGD <br />or 10 million gallons per year based in the Met Council's <br />current billing. With the future possible extensions, the <br />ultimate daily flow would be 0.256 MGD or 93.4 million <br />gallons per year. Table 7.2 illustrates estimated future <br />sewer flows based on the City's proposed zoning and land <br />use. The anticipated flows from the various sewer districts <br />were determined by applying typical flow rates. For <br />residential areas a flow rate of 275 gallons per day per <br />residential unit was used. For the commercial / industrial <br />areas a flow rate of 600 gallons per day per acre was used. <br />City of Gem Lake Comprehensive Plan I page 7-4 <br />