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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 Well Name or Total Depth Aquifer Well Vulnerability <br /> Number Number (ft) Formation(s) <br /> Utilized <br /> 271176 Well#2 290 Eau Claire-Mt. Not Vulnerable <br /> Simon <br /> 2211176 Well#3 315 Mt. Simon Not Vulnerable <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.Simon- Not Vulnerable <br /> Hinckley <br /> Potential Contamination Sources and Assigned Risk <br /> Total Number within Number Within <br /> Potential Source Number Emergency Response Remainder of the <br /> Type Area and Level of DWSMA and Level <br /> Risk of Risk <br /> City Wells 8 8 H N/A N/A <br /> Non City Wells 221 12 H 209 H <br /> High Priority <br /> Non City Wells <br /> Intermediate 80 I M 79 L <br /> Priority <br /> High Capacity 1 0 N/A 1 H <br /> Wells <br /> Storage Tanks 26 1 H 7 H <br /> 18 L <br /> *H=High Risk *M=Moderate Risk *L=Low Risk <br /> vi <br />