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St. Anthony 2040 Comprehensive Plan Chapter 7: Sanitary Sewer <br />135 <br /> <br />Projected Wastewater Flows <br />All the existing sewage flow from the City of St. Anthony is treated at the <br />Metropolitan WWTP in St. Paul. Any growth in sewered population is <br />expected to occur within the existing meter service areas and will be treated <br />at the Metropolitan WWTP as well. <br />Table 4 below lists the 2040 forecasted flow to each MCES interceptor and <br />total flow to the Metropolitan WWTP. The maximum flows given in Table 4 <br />were calculated by applying peak flow factors determined from historical <br />meter flow data for St Anthony. These forecasts are used by the <br />Metropolitan Council to plan for regional sanitary sewer and wastewater <br />treatment improvements. <br />TABLE 7-4: PROJECTED 2040 MCES INTERCEPTOR USE AND TOTAL FLOW <br />Interceptor <br /> 2040 Projected Flow <br />Meter Average <br />Flow (MGD) <br />Max Flow <br />(MGD) <br />1-RV-430 M055A & M055 0.403 3.433 <br />1-MN-302 M104 0.493 6.020 <br />1-MN-303 Unmetered 0.053 0.544 <br />Total <br />(Metro WWTP) 0.950 9.997 <br /> <br />Sewage from both the M055 and M055A sewer service areas flows into <br />interceptor 1-RV-430. The future development anticipated by 2040 in the <br />M055 sewer service area includes a high density residential area near the <br />Silver Lake Village on Stinson Rd and a medium density residential area <br />located just west of Mirror Lake on Foss Rd. No future development in the <br />M055A sewer service area is anticipated by 2040. <br />Flows into interceptor 1-MN-302 constitute the largest proportion of sewage <br />produced in St. Anthony, compared to the other two interceptors. Four <br />future developments are anticipated in the M104 sewer service area: three <br />high density housing residential developments and one medium density <br />residential development. The largest future development, at Lowry Grove, <br />is located in this region and would flow into interceptor 1-MN-302. <br />The potential development of the Southern Gateway site would have an <br />impact on projected wastewater flow. A recent environmental assessment <br />concluded that the development will increase average day sanitary sewer