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St. Anthony 2040 Comprehensive Plan Chapter 7: Sanitary Sewer <br />136 <br /> <br />flows by an estimated 230,000 gallons per day. As a result of the <br />redevelopment, St. Anthony will surpass the Metropolitan Council’s <br />wastewater projections, bringing the City’s total average wastewater flow <br />to 0.96-0.99 MGD. <br />Since there are no plans for future development in the unmetered sewer <br />service area of St. Anthony, it is anticipated that there will be no major <br />changes in the projected flows of this region’s flow contribution to <br />interceptor 1-MN-303. <br />SANITARY SEWER DESIGN CRITERIA <br />Land Use <br />The City’s existing and 2040 land use maps were used in the development <br />of this plan. Detailed information and figures regarding St. Anthony’s land <br />use is included in the City’s 2040 Comprehensive Land Use Plan. Using <br />existing land-use, metering data, and future land use information, existing <br />and future flows were calculated and divided by meter service area as <br />described below. <br />Existing Average Flow <br />To estimate the flows in trunk mains throughout the City, metering data was <br />retrieved from the Metropolitan Council. Flows were assigned <br />proportionally to each meter service area based on the acreage of <br />residential, commercial/retail/industrial/institutional/utility, and <br />park/undeveloped land within each area, and typical flows per acre for each <br />particular land use. <br />Future Average Flow – 2040 Build Out <br />Once average flows were estimated, future flows were projected based on <br />the planned 2040 land use from the Land Use Plan. Parcels that are <br />planned to be developed were assigned wastewater flow rates in <br />accordance with their land use type. TABLE 7-5 lists the assigned flows <br />based on the residential densities in the 2040 Land Use Plan and typical <br />flows recommended by MCES, which include design considerations for <br />inflow and infiltration (I/I). Refer to the Inflow and Infiltration section of this <br />report for more information about I/I as it relates to St. Anthony’s sanitary <br />sewer system. <br />