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219 <br />however, approximately 4,600 Individual Sewage Treatment Systems are active in the City limits. A <br />map of the ISTS is shown on Figure 57. <br />Population, Household, and Employment Forecasts <br />The municipally owned sanitary sewer system provides service to all residents and businesses in the City. <br />The following are the current revisions to the Met Council projections of population, household, and <br />employment forecasts. The City of Ramsey anticipates the following sewer demands, as detailed in Table <br />60. <br />Table 60 – Population, Housing, & Employment Sewer Allocation Forecasts <br />Forecast <br />Component 2010 2020 2030 2040 <br />Population Sewered 10,615 14,210 19,865 25,900 <br />Unsewered 13,053 13,340 13,485 13,250 <br />Households Sewered 3,615 5,000 6,850 8,940 <br />Unsewered 4,418 4,600 4,650 4,560 <br />Employment Sewered 4,304 6,280 7,100 7,640 <br />Unsewered 475 620 700 760 <br />Actual and Projected Wastewater Flow <br />Table 61 shows actual and projected average flows for the City’s wastewater system, in millions of <br />gallons per day (MGD). The current system has sufficient capacity to meet the demands of population <br />forecasts. <br />According to the Metropolitan Council, regional capacity for North Trott Brook Sewer District can be <br />provided through the existing Regional Disposal System by system capacity improvements. Therefore, <br />a future regional wastewater treatment plant (WWTP) is not being planned at this time. <br />Table 61 – Actual and Projected Average Wastewater Flows (MGD) <br />Meter 2010 2020 2030 2040 <br />M302 0.54 0.9 1.0 1.2 <br />M304 0.24 0.6 1.0 1.3 <br />Total 0.78 1.5 2.0 2.5 <br />Table 62 – System Pipe Capacity at Meter Connection (MGD) <br />City Pipe Capacity <br />30” RCP <br />Met Council Capacity <br />M302 7.5 MGD 8.14 MGD <br />M304 9.56 MGD 9.97 MGD