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3 <br />3.1 <br />along E Town Center Drive. Modeling did not assumed this, although it may be advantageous to <br />do so beyond 2040 if the private well owners in the center of town go on city water. The rnodels <br />did assume that the 16" walermain along Bunker Lake Blvd NW ties into the 8" and 12" <br />watermain along Rhinestone Street NW. <br />Second, with the proposed treatment plant location being on the west side of town, it may be <br />beneficial depending on future demands to extend the 12" watermain along Armstrong Blvd NW <br />to Bunker Lake Blvd, and to extend the 16" watermain along Bunker Lake Blvd NW to E Town <br />Center Drive. The extensions of those pipes was assumed in the 2040 modeling analysis and <br />prevented additional pipes in the area from exceeding a velocity of 5 feet per second. <br />Third, as can be seen in Figure 19 in Appendix B, the water level in Tower 2 approached and <br />stayed at an HGL of 1,033 feet. This was done by utilizing an altitude valve in the model for the <br />tower. Due to Tower 2's close proximity to the treatment plant, there is a risk of the tower to <br />overflow, especially during a MDD scenario, as the treatment plant pumps into the system to fill <br />Tower 1. Because of this, an altitude may have to be installed in the future <br />Drinking Water Quality <br />The City of Ramsey's water is tested on a regular basis by the City and by Minnesota <br />Department of Health (rvi DI-1). The following sections discuss Primary and Secondary test results <br />for the City's wells and distribution system, <br />Primary Drinking Water Standards <br />Primary Standards are legally enforceable standards that public water suppliers are required to <br />meet. Primary standards protect public health by regulating the levels of certain contaminants in <br />public water supplies. The United States Environmental Protection Agency (US EPA) establishes <br />maximum contaminant levels (MCLs) for primary standard constituents. Regulated constituents <br />include microorganisms, disinfectants, disinfection byproducts, inorganic chemicals, organic <br />chemicals and radionuclides A few primary contaminants have been detected in Ramsey's <br />water as shown on Table 5., however, the contaminants detected well below their respective <br />MCLs. <br />FEASIBILITY STUDY -DRAFT RAMSY 154354 <br />Page 8 <br />