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IL <br /> Item # 4 . JA <br /> a River` <br /> Municipal Utilities <br /> 3 2 King 63 , , <br /> t�. nmg.gvenue phone: 763.441.2020 <br /> Elk River. MN 55330 F : =41.8099 <br /> June 5, 200^ <br /> To: Elk River City Council <br /> From: Bryan C. Adams <br /> Subject: Future Water Production Facilities <br /> The Elk River Municipal Utilities (ERMU) Commission has had a number of discussions <br /> recently concerning our communities growth and the need for more water production. <br /> facilities. The ERMU currently operates 5 water production facilities and an additional <br /> facility will be completed in June, 2002. This represents a daily pumping capacity of 6.4 <br /> million gallons per day with the new facility. 2001 maximum daily pumping <br /> requirement was 5.3 million gallons. This is a lot of water for a community our size. <br /> Elk River's water use patterns have changed in the last few years, mainly due to lawn <br /> sprinkling. One water production facility could serve 1000 water meters in 1996 but <br /> only 632 meters in 2001. The time between constructing new facilities has decreased <br /> from 5 years to 3.5 years, while the cost of these facilities has increased from <br /> approximately 51,000,000 to approximately $1,400,000 each. <br /> Elk River currently has approximately 1500 lots in development or in the active planning <br /> stages. This equates to 2.3 water production facilities. To ensure we have locations to <br /> construct future water production facilities, the ERMU Commission has authorized the <br /> purchase of the necessary land. The attached sketch reflects possible locations for future <br /> water production facilities for eastern Elk River. When locating municipal well, the <br /> Minnesota Department of Health has criteria to be followed. The first is the isolation <br /> distance which is reflected on the attached sheet titled "Isolation Distances from a Water <br /> Supply Well". This criteria is to protect the well head from possible contamination. The <br /> other criteria is avoiding contamination in the aquifer. This is achieved by identifying <br /> the wellhead protection area dictated by the distance water in the aquifer will travel in 10 <br /> years to the well. See the attached drawing titled "Time of Travel . We are required to <br /> consider existing or potential aquifer contamination issues in the wellhead protection <br /> area when siting a municipal well. Before the property is purchased. generally we install <br /> a test well to help identify geology, water quantity and water quality characteristics. <br /> When we purchase this property, we must make it absolutely clear that we not <br /> guaranteeing if and when municipal water service will be available to the surrounding <br /> 1 <br />