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Executive Summary <br />The wellhead protection (WHP) plan for the ERMU of the City of Elk River presents the actions <br />that will be taken to manage potential contamination sources that may present a risk to the <br />quality of the community's drinking water. This plan is an amendment and was required by the <br />Minnesota Department of Health (MDH) under authority granted by Minnesota Statutes, section <br />1031.101, subdivision 5 and through Minnesota Rules Chapter 4720.5100 to 4720.5590 relating <br />to WHP planning. <br />The ERMU is located in the City of Elk River, county of Sherburne and relies on nine primary <br />wells that draw water from the Eau Claire- Mt. Simon-Hinckley aquifers. <br />Water Supply Wells Included in This Plan <br />Unique <br />Number Well Name or <br />Number Total Depth <br />(ft) Aquifer <br />Formation(s) <br />Utilized Well Vulnerability <br />271176 We11 #2 290 Eau Claire-Mt <br />Simon Not Vuluerable <br />2211176 We11 #3 315 Mt. Simon Not Vulaerable <br />481794 Well #4 225 Mt. Simon Not Vulnerable <br />537682 Well #5 406 Mt. Simon Vulnerable <br />580320 Well #6 300 Mt. Simon Not Vulnerable <br />664852 Well #7 341 Mt Simon Not Vulnerable <br />694499 Well #8 390 Mt. Simon Not Vulnerable <br />757624 Well #9 454 Mt slm°"- <br />Hinckle Not Vulnerable <br />Potential Contamination Sources and Assigned Risk <br /> Total Number within Number Withiu <br />Potential Source Number Emergency Response Remainder of the <br />Type Area and Level of DWSMA aHd Level <br /> Risk of Risk <br />Ci Welis 8 8 H N/A N/A <br />Non City Wells 221 12 H 209 H <br />Hi Priori <br />Non City Wells <br />Intermediate 80 1 M 79 L <br />Priori <br />High Capacity 1 0 N/A 1 H <br />Wells <br />Storage Tanks 2 7 H <br /> 6 1 H <br /> 18 L <br />•H=High Riak *M=Moderate Riak •L= Low Riak <br />Vl <br />