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4.7.3 Cost <br />The cost of the pipeline would likely be about $ 20 million. Purchase of water would need to be <br />negotiated with Minneapolis but would likely be in the range of $3.00 to $ 4.00 per 1,000 (including <br />cost of service). <br />4.7.4 Challenges and Other Considerations <br />It is highly unlikely that Elk River Municipal Utilities would pay for all of the pipeline because other <br />communities in the area with more pressing water-supply needs would also likely be purchasers of <br />water from Minneapolis. Water from Minneapolis would be softened and would likely be of excellent <br />quality. Elk River Municipal Utilities may lose some potential revenue by no longer being the <br />supplier of source water. <br />4.8 Alternate Source for Lawn Water <br />4.8.1 Description <br />Water for lawn sprinkling greatly increases overall water demand in the summer and places demands <br />for larger water-supply infrastructure (e.g., mare wells, larger treatment facilities). Lawn sprinkling <br />water comes from the same water distribution system as all other water supplies. Separating lawn <br />sprinkling water from drinking water provides opportunity to use a different (and perhaps untreated) <br />water supply, such as water stored in basins or river water. In order to implement such a system, a <br />second water distribution network would be required, with a nearly redundant pipe network. <br />4.8.2 Technical Feasibility and Reliability <br />While technically feasible, a second water distribution system is likely impractical in a community <br />that is already significantly developed. Water mains and service lines would need to be installed in <br />service areas. Safeguards would need to be instituted to minimize the likelihood that untreated water <br />was used for potable supplies. <br />4.8.3 Cost <br />The cost of implementing a second water-distribution system for lawn sprinkling would likely be <br />prohibitively high. In addition to piping and maintenance, a redundant system of elevated storage <br />would likely be required. If surface water was used for sprinkling, intake structures and pumps would <br />be required. <br />P:\Mpls\23 MN\71\2371105 Water Supply Alternative Study\FinalI)eliverables\Alternativea_Repon_final.doc 34 <br />