2.4. ERMUSR 06-12-2012 Elk River
Municipal Utilities
13069 Orono Parkway
P.O. Box 430
Elk River,MN 55330
(763) 441-2020
UTILITIES COMMISSION MEETING
TO: FROM:
Elk River Municipal Utilities Commission David Berg—Water Superintendent
John Dietz, Chair
Daryl Thompson, Vice Chair
Allan Nadeau, Trustee
MEETING DATE: AGENDA ITEM NUMBER:
June 12, 2012 2.4
SUBJECT:
Wellhead Protection Plan
BACKGROUND:
Wellhead protection is a way to prevent drinking water from becoming polluted by managing
potential sources of contamination in the area that supplies water to a pubic well. Much can be
done to prevent pollution, such as the wise use of chemicals. Through wellhead protection
efforts, public health is protected and the expense of treating polluted water or drilling a new
well is avoided.
DISCUSSION:
Staff is presenting the Wellhead Protection Plan for Elk River Municipal Utilities.
ACTION REQUESTED:
Staff requests the Commission approve the Wellhead Protection Plan.
j P D N E R E D 1 1
Reliable Public I.NATUREI
Power Provider P O W E R E D To S E R V E
DRAFT
WELLHEAD PROTECTION PLAN
FOR THE
ERMU City of Elk River
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Elk River
MunicipMunicipal Utilities
Variable Vulnerability Setting
This plan is in effect from:
May 13, 2012
Forward -
This document presents the WHP plan for the Public Water Supplier that will help provide for an
adequate and safe drinking water supply for community residents. It contains the following
components-
• Assessment of the data elements used to prepare the plan
• Delineation of the wellhead protection area,
• Delineation of the drinking water supply management area,
• Assessments of well and drinking water supply management area vulnerability,
• Impact of changes on the public water supply well(s) used by the water supplier
• Issues,Problems, and Opportunities affecting the well(s),well water, and the drinking
water supply management area;
• Wellhead protection goals for this plan;
• Objectives and plan of action for achieving the wellhead protection goals;
• Evaluation program for assessing the effectiveness of this plan; and
• Contingency strategy to address an interruption of the water supply.
Water Supply Wells Included in This Plan
Unique Number Well Name or Number Use/Status'
271176 Well#2 P
2211176 Well#3 P
481794 Well#4 P
537682 Well#5 P
580320 Well#6 P
664852 Well#7 P
694499 Well#8 P
757624 Well #9 P
lP=Primary Water Supply Well E=Emergency Backup Well S=Seasonal Well
WHP Plan Manager
Ms.Angela Hauge,Water Operator
13069 Orono Parkway,P.O. Box 430
Elk River,Minnesota 55330-0430
Phone: 763.441.2020
Email: ahauge(elkriverutilities.coJn
Dave Berg,Water Superintendent
13069 Orono Parkway,P.O. Box 430
Elk River,Minnesota 55330-0430
Phone: 763.441.2020
Email: dbera(a�ella•iverutilities.com
ii
WHP Team Members
Angela Hauge, Water Operator, Elk River Utilities
Dave Berg, Water Superintendent, Elk River Utilities
Robyn Hoerr, Planner
Tom Sagstetter, Co-Manager Conservation& Key Accounts Manager
Written By
Teri Osterman,MRWA -Financial Services Planner
Hydrologist
Gail Haglund, MDH/SWP Unit
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Table of Contents
Page
Executive Summary vi
Chapter 1.0 Introduction 1
Chapter 2.0 Identification and Assessment of the Data Elements Used to Prepare the Plan 1
Chapter 3.0 Delineation of the Wellhead Protection Area,Drinking Water Supply Management
Area, and Vulnerability Assessments 4
Chapter 4.0 Assigning Risk to Potential Contamination Sources 5
Chapter 5.0 Impact of Land-and Water-Use Changes on the Public Water Supply Well(s) 6
Chapter 6.0 Issues,Problems, and Opportunities 7
Chapter 7.0 Existing Authority and Support Provided by Local, State,and Federal Governments 9
Chapter 8.0 Goals 12
Chapter 9.0 Objectives and Plan of Action 14
Chapter 10.0 Evaluation Program 19
Chapter 11.0 Contingency Strategy 19
Chapter 12.0 Glossary of Terms 19
Chapter 13.0 List of Acronyms 21
Chapter 14.0 References 21
Chapter 15.0 Figures 24
List of Figures
Figure 1: Regional Location Map 24
Figure 2: ERMU Municipal Well Location Map 25
Figure 3: Groundwater Flow Field Map 26
Figure 4: Groundwater Flow Field Map 27
Figure 5: Wellhead Protection Areas Map ' 28
Figure 6: Drinking Water Supply Management Area 29
Figure 7: ERMU DWSMA Map 30
Figure 8: Surficial Geology of the DWSMA 31
Figure 9: DWSMA Vulnerability 32
Figure 10: Sherburne County Map 33
Figure 11: Anoka County Map 34
Figure 12: Wright County Map 35
Figure 13: Otsego City Map 36
Figure 14: Elk River Land Use Map 37
Figure 15: Elk River Zoning Map 38
Figure 16 Well 5 1WHPZ Map 39
Figure 17 Well 5 Sewer/Sanitary Map 40
iv
List of Tables
Table 1: Assessment Results for the Data Elements 2
Table 2: Potential Contamination Sources and Assigned Risk for the IWMZ 6
Table 3: Point Sources of Potential Contamination and Assigned Risk for the Remainder of
the DWSMA 6
Table 4: Expected Land and Water Use Changes 7
Table 5: Issues,Problems and Opportunities 8
Table 6: Controls and Programs of the Public Water Supplier 9
Table 7: Local Agency Controls and Programs 10
Table 8: State and Federal Agency Controls and Programs 11
Table 9: WHP Plan of Action 14
Table 10: Cooperating Agencies 18
List of Appendices
Appendix I: WHPA and DWSMA Delineations and Vulnerability Assessments 41
Appendix II: Inventory of Potential Contamination Sources 65
Appendix III: DNR Water Supply Approval Letter 124
v
The Drinking Water Supply Management Area (DWSMA)is shown in Figure 1 and is the focus
of this plan. The vulnerability of the DWSMA to contamination is based upon an assessment of
the 1) geologic protection covering the aquifer, 2) rate at which the aquifer is recharged, and 3)
groundwater chemistry including the presence of contaminants of human origin.
The ERMU has assigned priorities for managing potential contaminant sources that have been
inventoried within its DWSMA. The inventory was based on 1) the DWSMA vulnerability, 2)
the information contained in various state agency databases, and 3) information that the ERMU
collected about current and historical land uses. Potential contamination sources that were
assigned a high risk were given priority for inventory in the highly vulnerable portion of the
DWSMA. The risk assigned to the potential source was based on 1) evidence that contaminants
are present in the water supply, 2) the potential health impacts of the contaminant and 30 the
quantity of potential contaminant attributed to the source contaminant's toxicity to people.
Wellhead Protection Goals for the ERMU—
• Maintain a safe and adequate drinking water supply for community residents that
continues to meet the safe drinking water requirements for protecting the public's health,
safety and general welfare of the community
• Educate the general public regarding the principals and importance of water conservation
and collecting additional data to support future delineation in order to promote the proper
use of drinking water resources and monitor the geologic condition of Well#5.
The following table illustrates action items that the ERMU has identified to meet the goals of its
WHP plan. Further discussion of them and those of state and local government are presented in
the Objectives and Plan of Action section of this plan.
Summary of Wellhead Protection Actions
Wellhead Protection Action Item Descriptions N er 4 le 4 r « a C
N N N el N N N N lC�' N
Provide ERMU residents with a pamphlet or bill stuffer that explains the
importance of WHP and the need to seal priority unused wells and the Annually
ERMU's willingness to support programs to find funding available.Request
assistance from MRWA.
Distribute materials to property owners in and outside of the ERMU limits
within the DWSMA relating to the proper management of wells
rt �a
Continue to provide tours of the water plant to educate school children on the
importance of WHP,conservation and protection Annually
vii
In the next two years,create and present a mobile display for agencies around
the DWSMA in order to educate the public visually. Example locations:
YMCA,City Library,Elk River Municipal Unities and City offices,Senior DC X
Activity Center.
In the next year,we will take footage of a local well sealing and create a
video presentation to display on ERMU website,You Tube,Face book etc...
This will show the importance of well maintenance and well sealing cost-
share availability
Keep local city channel(Channel 12)ERTV12 well and water footage up to
date with any changes in DWSMA area. Currently demonstrate: Water
system incite,water meter change outs details,,wellhead protection
importance,water conservation/SMART irrigation information,etc.
Annually mail Consumer Confidence Reports so citizens are aware of the
water quality Annually
Contact Sherburne County annually to see what monies are available through
the county for education and well sealing Annually
Present Kids themed information on WHP/water conservation for Earth Day
school visit and other kid activity days with schools,girl scouts,boys scouts,
home school kids. Attempt to gain additional audiences each year to reach a Annually
variable age range
There are known wells on the PCSI inventory without complete data fields.
ERMU staff will continue to gather property owner's names,addresses,
parcel identification numbers,status of wells or other applicable information 0
on the wells in order to complete the PCSI
The ERMU will apply for grant funds to help seal unused wells located in the
DWSMA. If they are successful they will use the money to seal the wells. If
unsuccessful they will work cooperatively with the local units of government M rd
to provide as much cost share as possible to help seal wells
ERMU will seek funding to further refine the well inventory to obtain status
and construction information regarding the wells in order to identify which
wells reach or penetrate the same aquifer as the ERMU wells.
Notify MDH if a Class V well is identified and provide management
materials to the Class V well owner
toi
Meet with Sherburne County SWCD to discuss areas where they can work
cooperatively on water and land use management issues with the DWSMA
and on grant funding. Annually
viii
Work with all entities involved in the DWSMA on land use issues.
As Needed
Meet with Elk River Planning and Zoning to incorporate the map in the city
land use and incorporate the WHP Plan into the city Comprehensive Plan
Have Well#5 sampled for stable isotopes of oxygen(180)and deuterium
(2H)and several general chemistry parameters on water produced to assess
the degree to which surface waters may be contributing to the well.Have
MDH staff and MDH hydro geologist assist in the collection and evaluation
of the sampling of surface waters up-gradient of Well#5 as needed. Apply
for a SWP grant to help pay associated costs.Contact MDH as to availability
of grant Programs
Evaluate reasons for younger water being produced at Well#5. Evaluate the
downward groundwater leakage from shallower aquifers and overlying
surface bodies into the Mount Simon-Hinckley aquifer.
Implement measures that are specified in the IWMZ PCSI report
Annually
Monitor and maintain the 200 ft.radius around the wells to ensure that
setback distances for new potential contamination sources are met.
Annually
Assist MDH staff in updating the IWMZ inventory for the public water
supply wells. Contact your MDH Planner if changes to the locations or
construction of potential contaminant sources are proposed in the IWMZ.
Develop policies and procedures for an Emergency Water Plan dealing with
derailment as to the proximity of the Railroad and Hwy#10 to Wells# 1 and
Well#2
Document all wells that have been sealed by keeping track of the property
owners name,address and parcel number of the well location,and share with
Sherburne County. If possible,request a well sealing log from the property As Needed
owner or well driller who sealed the well.
Prepare an assessment of WHP plan implementation efforts every 2 V2 years.
Request assistance from MDH Planner and MRWA.
66I 164 164
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ix
Summarize all WHP Plan implementation efforts in a report to MDH in the
e year.
Review and update the Water Supply and Management Plan every 2 '/2 years.
b b M
Make entire ERMU and City staff aware of the Contingency Plan. Where it
is located and how to use it.
Annually
The ERMU will prepare an internal assessment of plan implementation every two and one half
years and will summarize its progress with plan implementation I the eighth year when the plan
amendment process begins. Emphasis in the ninth year will be to prepare an amended plan for
submittal to the MDH at the beginning of the tenth year. The amended plan must be approved
by the end of the tenth year to ensure that the ERMU always has an approved WHP plan in
place.
The MDH, MRWA, Federal and State agencies, and Sherburne County will provide support to
the ERMU to implement various actions that are listed above. Refer to the Support provided by
Local, State and Federal Governments section of this report to identify the types of outside
support that will be provided to the ERMU. The ERMU will serve as the contact for enlisting
support that is provided by other local governments. Generally, the MDH will serve as the
contact for enlisting the support of other state agencies and from federal agencies on a case-by-
case basis regarding technical or regulatory support that may be applied to the management of
potential contamination sources. Also, MDH will provide technical support to the ERMU for
assessing the impacts that contamination releases may present to drinking water quality and for
further data collection that is summarized in the preceding table. Participation by other agencies,
federal agencies, and local governments is based on legal authority granted to them and resource
availability.
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Executive Summary
The wellhead protection(WHP)plan for the ERMU of the City of Elk River presents the actions
that will be taken to manage potential contamination sources that may present a risk to the
quality of the community's drinking water. This plan is an amendment and was required by the
Minnesota Department of Health (MDH)under authority granted by Minnesota Statutes, section
1031.101, subdivision 5 and through Minnesota Rules Chapter 4720.5100 to 4720.5590 relating
to WHP planning.
The ERMU is located in the City of Elk River, county of Sherburne and relies on nine primary
wells that draw water from the Eau Claire-Mt. Simon-Hinckley aquifers.
Water Supply Wells Included in This Plan
Unique Well Name or Total Depth Aquifer Well Vulnerability
Number Number (ft) Formation(s)
Utilized
271176 Well#2 290 Eau Claire-Mt Not Vulnerable
Simon
2211176 Well#3 315 Mt.Simon Not Vulnerable
481794 Well#4 225 Mt.Simon Not Vulnerable
537682 Well#5 406 Mt.Simon Vulnerable
580320 Well#6 300 Mt.Simon Not Vulnerable
664852 Well#7 341 Mt.Simon Not Vulnerable
694499 Well#8 390 Mt.Simon Not Vulnerable
757624 Well#9 454 Mt Simon- Not Vulnerable
Hinckley
Potential Contamination Sources and Assigned Risk
Total Number within Number Within
Potential Source Number Emergency Response Remainder of the
Type Area and Level of DWSMA and Level
Risk of Risk
City Wells 8 8 H N/A N/A
Non City Wells 221 12 H 209 H
High Priority
Non City Wells
Intermediate 80 1 M 79 L
Priority
High Capacity 1 0 N/A 1 H
Wells
Storage Tanks 26 1 H 7 H
18 L
*H=High Risk *M=Moderate Risk *L=Low Risk
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