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UltiMUSA <br />The UltiMUSA boundary represents a line surrounding the area which can be served by existing <br />or planned Metropolitan Council wastewater facilities. One of the first attempts to define an <br />ultimate service boundary was in 1968. That boundary was based primarily on planned facilities, <br />new service areas, and estimated populations. In subsequent years, facilities were constructed to <br />serve this estimated increase in population. This BATC study cites the UtliMUSA in Figure 2, <br />as the area which could be reasonably served by the existing Metropolitan Wastewater <br />Treatment System. Areas beyond the boundary’ could be served by new regional systems - <br />separate from the Metro System in place today. <br />The UltiMUSA is based on the following general criteria and assumptions, <br />□ The UltiMUSA boundary follows watershed boundaries. <br />□ If the majority of a community is within the major watershed and regional service <br />area, the remainder of the community will also be included in the UltiMUSA. <br />□ Communities currently served outside major watersheds via lift stations and force <br />mains will continue to be served. <br />□ The capacity of the metropolitan sew age disposal system is defined by critical <br />components or “bottlenecks”. A bottleneck is considered to be an incorrectable <br />obstruction. Examples would include a required treatment plant expansion or a major <br />interceptor reconstruction. The former may be a bottleneck because of regulation <br />constraints and the latter because of economic constraints. <br />i <br />Executive Summary