CR 09-012 Approve City of Hopkins Water Supply PlanGITY OF
I*
y OPKINS
February 12, 2009 Council Report 2009 -012
Approve City of Hopkins Water Supply Plan
Proposed Action.
Staff recommends adoption of the following motion: Move that Council approve the City
of Hopkins Water Supply Plan
Overview:
Public water suppliers that service more than 1,000 people are required to have a Water
Supply Plan approved by the Department of Natural Resources. All communities in the
Twin Cities Metropolitan Area are required to prepare a plan. The plan includes
information in the following areas: water supply system description and evaluation,
emergency response procedures, and water conservation. Water Supply plans were
first required in the late 1990's and must be updated every ten years. Staff recommends
approval.
Primary Issues to Consider.
• Plan specifics
The Water Supply Plan includes three major components: Part I: Water Supply System
description and evaluation, Part II: Emergency Response Procedures, and Part III:
Water Conservation. Part I describes the city's historical water demand; the major city
water consumers; system capacities regarding water treatment, storage and water
sources (wells); interconnections; demand projections and water resource sustainability.
Part II describes emergency response procedures, including: listing of water use
priorities and water demand reduction procedures tailored to respond to different
severity levels of water supply deficiencies from mild shortage to severe shortage
requiring the elimination of all water uses except domestic uses and fire protection. Part
11 covers water conservation, including: reducing unaccounted for water, residential per
capita demand, city regulations and educational efforts.
Supporting information.
Qz • Water Su ply Plan
Steven J. Stadler, Public Works Director
Financial Impact: $ 6,000 for plan preparation Budgeted: Y/N Y Source: Water Fund
Related Documents (CIP, ERP, etc.):
Notes:
Water Supply Plan
City of Hopkins, Minnesota
Table of Contents
Water Supply Plan Form
Attachment A: Emergency Telephone List
Attachment B: City Ordinances — Water Rates
Attachment C: City Ordinances Related to Water Emergency and Conservation
DEPARTMENT OF NATURAL RESOURCES - DIVISION OF WATERS and
METROPOLITAN COUNCIL
WATER SUPPLY PLANS
These guidelines are divided into four parts. The first three parts, Water Supply System
Description and Evaluation, Emergency Response Procedures and Water Conservation Planning
apply statewide. Part IV, relates to comprehensive plan requirements that apply only to
communities in the Seven - County Twin Cities Metropolitan Area. If you have questions
regarding water supply plans, please call (651) 259 -5703 or (651) 259 -5647 or e -mail your
question to wateruseAdnr.state.mn.us Metro Communities can also direct questions to the
Metropolitan Council at watersMply(a),metc.state.mn.us or (651) 602 -1066.
DNR Water Appropriation
Permit Number (s
1270016
Name of Water Supplier
City of Hopkins
Address
1010 First Street S, Hopkins, MN 55343
Contact Person
Steve Stadler, PE
Title
Public Works Director
Phone' Number
952-S48-6350
E -Mail Address
sstadler@hopkinsmn.com
PART I. WATER SUPPLY SYSTEM DESCRIPTION AND EVALUATION
The first step in any water supply analysis is to assess the current status of demand and supplies.
Information in Part I, can be used in the development of Emergency Response Procedures and
Conservation Plans.
A. ANALYSIS OF WATER DEMAND.
Fill in Table 1 for the past 10 years water demand. If your customer categories are different,than,
the ones listed in Table 1, please note the changes below..
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Water Use Trends. Discuss factors that influence trends in water demand (i.e. growth, weather,
industry, conservation). If appropriate, include a discussion of other factors that affect daily
water use, such as use by non - resident commuter employees or large water consuming i dustry.
The overall water use on a per capita basis has kept relatively stable for the past 6 years.
Overall, the water use is likely to increase slightly due to higher density redevelopment
occurring in Hopkins over the next several years.
B. TREATMENT AND STORAGE CAPACITY.
TABLE 3(A) Water'Freatment
Water Treatment Plant'CApacity 7,200,000 gpd 5000 m
Describe the treatment process used (i.e., softening; chlorination, fluoridation, Fe/Mn removal,
reverse osmosis, coagulation, sedimentation, filtration, others). Also, describe the annual amount
and method of disposal of treatment residuals, if any.
Chlorine oxidation, iron removed by gravity filtration, polyphosphate addition for mineral
sequestration, fluoridation, and chlorine disinfection.
TARTY. MR) Stnrage Canacitv - List all storage structures and capacities.
Total Storage Caoacity
Average Day Demand (average of last S ears
3,200,000 gal
2.57 MGD
Type of Structure
Number of Structures
Gallons
Elevated Storage
2
1,000,000
Ground Storage
2
2,200,000
Other:
C. WATER SOURCES. List all groundwater, surface water and interconnections that
supply water to the system. Add or delete lines to the tables as needed.
TABLE 4(A) Total Water Source Capacity for System (excluding emergency connections)
Total Capacity of Sources 8550 m
Firm Capacity (largest um out of service 4950 gpm
TABLE 4(B) Groundwater Sources - Copies of water well records and well maintenance
information should be included with the public water supplier's copy of the plan. If there are
more wells than space provided or multiple well fields, please use the List of Wells template (see
iwovaxavvu
Well #
or name
Unique
Well
Number
Year
Installed
Well &
Casing
Depth ft
Well
Diameter
in
Capacity
(GPM
Geologic Unit
Status
1
204573
1920
780/287
12
1300
Dresbach
Shakopee
Emergency
4
204068
1954
548/352
20
3600
Jordan
Shakopee
Active
5
204570
1967
500/382
16
1150
Jordan
Shakopee
Active
6
112228
1977
542/354
24
2500
Jordan
Shakopee
Active
Status: Active use, Emergency, stano)y, seasonai, reax use, mc. jr m — rte= .. .
Geologic Unit: Name of formation(s), which supplies water to the well
1 ALL11J Z
Intake ID
Resource name
Ca aci GPM/MGD
N/A
firm — vauons per rvimuRe 1VI"Li — 1VII—V 1a vaaav F. "
TABLE 4(D) Wholesale or Retail Interconnections - List interconnections with neighboring
— 17,,..,. Q....4 .. —a �_ _1.. »tor .. ra a ram mlar hack either whnleSale or retail.
JU iav1� .aau� uav u�v.. uv .�... �
Water Supply Sys em
•. � - -- - -_ -- _ _ ____ -- _- _.
Ca aci GPMIMGD
Wholesale or retail
uFm — uanons per lvnnuie 1Vi "iy — rviuuuu au yea --y
r
TABLE 4(E) Emergency Interconnections - List interconnections with neighboring suppliers or
private sources that can be used to supply water on an emergency or occasional basis. Suppliers that
serve less than 3,300 people can leave this section blank, but must provide this information in
Q .. TT C
Water Supply System
Capacity GPM/MGD
Note any limitations on use
Minnetonka
Unknown —10
interconnections
Flow to Hopkins from'
Minnetonka only due to
hydraulic grade. No
formalized agreement for use.
GYM — Gallons per Minute MkjL — rvuuion vaiions per Lay
D. DEMAND PROJECTIONS.
Projection Method:' Describe how projections were made, (assumptions for per capita, per
household, per acre or other methods used)
Population projections from the Metropolitan Council were used to project water demands based
on historical per capita demand. The average per capita demand from the previous five years
was used to project future average day demands. The largest maximum day peaking factor (ratio
of maximum day demand to average day demand) of the previous five years was used to estimate
future maximum day demands by multiplying projected average day demands by this value.
E. RESOURCE SUSTAINABILITY
Sustainable water use: use of water to provide for the needs of society, now and in
the future. without unacceptable social, economic, or environmental consequences.
Monitoring. Records of water levels should be maintained for all production wells and source
5
MGD — Million Gallons per Day MGY — Million Gallons per Year
water reservoirs/basins. Water level readings should be taken monthly for a production well or
observation well that is representative of the wells completed in each water source formation.
Water levels are not currently measured, but a monitoring plan is included under "Water
Level Data ".
TART .F A Mnnifnrina Wellc _ T.ist all wells being measured
Unique well
Type of well
Frequency of
Method of
number
(production,
Measurement
Measurement (steel
observation )
((daily, monthly etc.
tae SCADA etc.
204573
Production
To be measured
TBD
monthl
204068
Production
To be measured
TBD
monthl
204570
Production
To be measured
TBD
monthl
112228
Production
To be measured
TBD
monthl
Water Level Data. Summarize water level data including seasonal and long. -term trends for
each ground and/or surface water source. If water levels are not measured and recorded on a
routine basis then provide the static water level (SWL) when the well was constructed and a'
current water level measurement for each production well. Also include all water level data .
taken during well and pump maintenance.
The City does not currently keep water level data. In the future, the City will begin to monitor
and track water level data on a monthly basis for each of the wells. This water level data will be
kept in a single file and reviewed on an annual basis to determine if any changes are occurring in
the so urce aquifer.
Ground Water Level Monitoring — DNR Waters in conjunction with federal and local units of government maintain
and measure approximately 750 observation wells around the state. Ground water level data are available online
www.dnr.state.mn.us /waters Information is also available by contacting the Ground Water Level Monitoring Manager,
DNR Waters 500 Lafayette Road St Paul MN 55155 -4032 or call (651) 259 -5700.
Natural Resource Impacts. Indicate any natural resource features such as,calcareous fens,,
wetlands, trout streams, rivers or surface water basins that are or could be influenced by water
withdrawals from municipal production wells. Also indicate if resource protection thresholds
have been established and if miti gation, measures or man agement plans have been developed.
Minnehaha Creek is located in the ten -yr. capture zone of the City's wellfield. There also
appears to be a direct hydraulic connection between surface waters and portions of the water
supply aquifer, based on tritium testing results. However, the extent of the influence that
pumping of the Jordan aquifer has on the water table aquifer has not been established. In general
there is a hydraulic separation between the water table aquifer and the Jordan, caused by the
overlying shale -rich Platwood- Glenwood layer, where present, and the lower portion of the St.
Peter formation, which also consists of mudstone, siltstone, and shale with interbedded coarse
sandstone.
Sustainability. Evaluate the adequacy of the resource to sustain current and projected demands.
Describe any modeling conducted to determine impacts of projected demands on the resource.
Groundwater modeling of the City's source water aquifer has been completed as part of the
Hopkins Wellhead Protection Plan. The Prairie- du- Chein- Jordan Aquifer appears adequate and
sustainable to support the City's water supply needs. There is no evidence that this aquifer is
being degraded or it's capacity reduced over time.
Source Water Protection Plans. The emergency procedures in this plan are intended to comply
with the contingency plan provisions required in the Minnesota Department of Health's (MDH)
Wellhead Protection Plan and Surface Water Protection SWP Plan.,
Date WHP Plan Adopted:
Feb. 2008
Date for Next WHP Update:
2018
SWP Plan:
❑ In Process ® Completed ❑
Not Applicable
F. CAPITAL IMPROVEMENT PLAN (CIP)
Adequacy of Water Supply System. Are water supply installations, treatment facilities and
distribution systems adequate to sustain current and projected demands? ® Yes ❑ No If no,
describe any potential capital improvements over the next ten years and state the reasons for the
proposed changes (CIP Attachment N /A)
Hopkins is currently considering additional interconnections with neighboring communities,
including Edina and St. Louis Park, to increase reliability since Minnetonka has limited capacity
to supply water to Hopkins emergency situations. Hopkins has adequate supply capacity to meet
projected demands through 2030 (6.6 MGD maximum day). The WTP has an adequate capacity
estimated at 7.2 MGD.
Proposed Water Sources. Does your current CIP include the addition of new wells or intakes?
❑ Yes ® No If yes, list the number of new installations and projected water demands from
each for the next ten years. Plans for new production wells must include the `geologic source
fnrmntinn wAl.lncatinn and nrnnosed numning capacity.
N/A
Water Source Alternatives. If new water sources are being proposed, describe alternative
sources that were considered and any possibilities of joint efforts with neighboring communities
for development of supplies. w
N/A
Preventative Maintenance. Long -term preventative programs and measures will help reduce
the risk of emergency situations. Identify sections of the system that are prone to failure due to
age, materials or other problems. This information should be used to prioritize capital
improvements, preventative maintenance, and to determine the types of materials (pipes, valves,
couplings, etc. ) to have in stock to reduce repair time.
Private service lines are currently most prone to failure. City currently will pay 1/3 o the cost of
line replacement if done during street reconstruction.
Residential water meters are aging and getting close to service life for batteries. City is currently
in the middle of a program to replace existing meter heads along with a meter reading upgrade to
a Badger ORION system Replacement of water meters should be completed within four years.
PART II. EMERGENCY RESPONSE PROCEDURES
Water emergencies can occur as a result of vandalism, sabotage, accidental contamination,
mechanical problems, power failures, drought, flooding, and other natural disasters. The purpose
of emergency planning is to develop emergency response procedures and to identify actions
needed to improve emergency preparedness. In the case of a municipality, these procedures
should be in support of, and part of, an all- hazard emergency operations plan. If your
community already has written procedures dealing with water emergencies we recommend that
you use these guidelines to review and update existing procedures and water supply protection
measures.
Federal Emergency Response Plan
Section 1433(b) of the Safe Drinking Water Act as amended by the Public Health Security and
Bioterrorism Preparedness and Response Act of 2002 (Public Law 107 -188, Title IV — Drinking
Water Security and Safety) requires community water suppliers serving over 3,300 people to
prepare an Emergency Response Plan. Community water suppliers that have completed the
Federal Emergency Response Plan and submitted the required certification to the U.S.
Environmental Protection Agency have satisfied Part Il, Sections A, B, and C of these
guidelines and need only provide the information below regarding the emergency response
plan and source water protection plan and complete Sections D (Allocation and Demand
Reduction Procedures), and E (Enforcement).
Provide the following information regarding your completed Federal Emergency Response Plan:
Emergency Response Plan
Contact Person
Contact Number
Emergency Response Lead
Doug Anderson
952.548.6373
Alternate Emergency Response Lead
Dave Goer en
952.939.1382
Emergency Response Plan Certification Date I Unknown
Operational Contingency Plan. An operational contingency plan that describes measures to be
taken for water supply mainline breaks and other common system failures as well as routine
maintenance is recommended for all utilities. Check here ® if the utility has an operational
contingency plan. At a minimum a contact list for contractors and supplies should be included in
a water emergency telephone list.
Communities that have completed Federal Emergency Response Plans -should skip to Section D.
0
EMERGENCY RESPONSE PROCEDURES
A. Emergency Telephone List. A telephone list of emergency contacts must be included as
Attachment A to the plan (complete template or use your own list). The list should include
key utility and community personnel, contacts in adjacent communities, and appropriate
local, state and federal emergency contacts. Please be sure to verify and update the contacts
on the emergency telephone list on a regular basis (once each year recommended). In the
case of a municipality, this information should be contained in a notification and warning
standard operating procedure maintained by the warning point for that community.
Responsibilities and services for each contact should be defined.
B. Current Water Sources and Service Area. Quick access to concise and detailed
information on water sources, water treatment, and the distribution system may be needed in
an emergency. System operation, water well and maintenance records should be maintained
in a central secured location so that the records are accessible for emergency purposes and
preventative maintenance. A detailed map of the system showing the treatment plants, water
sources, storage facilities, supply lines, interconnections, and other information that would be
useful in an emergency should also be readily available. Check here ® if these records and
maps exist and staff can access the documents in the event of an emergency.
C. Procedure for Augmenting Water Supplies. List all available sources of water that can be
used to augment or replace existing sources in an emergency. In the case of a municipality,
this information should be contained in a notification and warning standard operating
procedure maintained by the warning point for that community. Copies of cooperative
agreements should be maintained with your copy of the plan and include in Attachment
. Be sure to include information on any physical or chemical problems that may limit
interconnections to other sources of water. Approvals from the MN Department of Health
are required for interconnections and reuse of water.
TABLE 7 (A) Public Water Supply Systems — List interconnections with other public water
cimply exictemc that can supply w ater in an e mergencv.
Water Supply System
Capaci GPM/MGD
-Note any limitations on use
Minnetonka
No formal agreement in place
GPM - Gallons per Minute MGD - Million Gallons per Day
T A UT F 7 !Rl _ Privates WntPr Rnnreec — TA d oth er sources of water available in an emergency.
Name .
Capacity (GPM/MGD
Note any limitations on use. .
GPM — Gallons per Minute MGD — Million Gallons per tray
D. Allocation and Demand Reduction Procedures. The plan must include procedures to
address gradual decreases in water supply as well as emergencies and the sudden loss of
water due to line breaks, power failures, sabotage, etc. During periods of limited water
10
supplies public water suppliers are required to allocate water based on the priorities
established in Minnesota Statutes 103G.261.
Water Use Priorities (Minnesota Statutes 103G.261)
First Priority. Domestic water supply, excluding industrial and commercial uses of municipal water supply, and use for power
production that meets contingency requirements.
NOTE: Domestic use is defined (MN Rules 6115.0630, Subp. 9), as use for general household purposes for human needs
such as cooking, cleaning, drinking, washing, and waste disposal, and uses for on -farm livestock watering excluding
commercial livestock operations which use more than 10,000 gallons per day or one million gallons per year.
Second Priority. Water uses involving consumption of less than 10,000 gallons per day.
Third Priority. Agricultural irrigation and processing of agricultural products.
Fourth Priority. Power production in excess of the use provided for in the contingency plan under first priority.
Fifth Priority. Uses, other than agricultural irrigation, processing of agricultural products, and power production.
Sixth Priority. Non - essential uses. These uses are defined by Minnesota Statutes 103G.291 as lawn sprinkling, vehicle
washing golf course and park irrigation and other non - essential uses.
List the statutory water use priorities along with any local priorities (hospitals, nursing
homes, etc.) in Table 8. Water used for human needs at hospitals, nursing homes and similar
types of facilities should be designated as a high priority to be maintained in an emergency.
Local allocation priorities will need to address water used for human needs at other types of
facilities such as hotels, office buildings, and manufacturing plants. The volume of water
and other types of water uses at these facilities must be carefully considered. After
reviewing the data, common sense should dictate local allocation priorities to protect
domestic requirements over certain types of economic needs. In Table 8, list the priority
ranking, average day demand and demand reduction potential for each customer category
(modify customer categories if necessary).
Tahln R Water FTcv PrinritiPc
y _
Customer Category
Allocation
Priori
Average Day Demand
GPD
Demand Reduction
Potential GPD
Residential
1
750,000
0
Institutional Critical
1
50,000
0
Commercial /Industrial /'`
Institutional. General
2
173,000
173,000
Non - essential
3
392,000
392,000
TOTALS1
565,000
GPD — Gallons per Day
Demand Reduction Potential. The demand reduction potential for residential use will typically be the base
demand during the winter months when water use for non - essential uses such as. lawn watering do not occur. The
difference between summer and winter demands typically defines the demand reduction that can be achieved by
eliminating non - essential uses. In extreme emergency situations lower priority water uses must be restricted or
eliminated to protect first priority domestic water requirements. Short-term demand reduction potential should be
based on average day demands for customer categories within each priority class.
Triggers for Allocation and Demand Reduction Actions. Triggering levels must be defined
11
for implementing emergency responses, including supply augmentation, demand reduction, and
water allocation. Examples of triggers include: water demand >100% of storage, water level in
well(s) below a certain elevation, treatment capacity reduced 10% etc. Each trigger should have
a quantifiable indicator and actions can have multiple stages such as mild, moderate and severe
responses. Check each trigger below that is used for implementing emergency responses and for
each trigger indicate the actions to be taken at various levels or stages of severity in Table 9.
®
Water Demand
®
Water Main Break
❑
Treatment Capacity
Loss of Production
®
Storage Capacity
❑
Security Breach
F
Groundwater Levels
Contamination
❑
Surface Water Flows or Levels
❑
Other (list in Table 9)
®
Pump, Booster Station or Well Out of Service
®
Governor's Executive Order — Critical Water Deficiency (required by statute)
Notification Procedures. List methods that will be used to inform customers regarding
conservation requests, water use restrictions, and suspensions. Customers should be aware of
emergency procedures and responses that the ma need to implement.
Newspaper, radio, and television news media; Direct mailings
E. Enforcement. Minnesota Statutes require public water supply authorities to adopt and
enforce water conservation restrictions during periods of critical water shortages.
Public water Supply Appropriation During Deficiency.
Minnesota Statutes 103G.291, Subdivision 1.
Declaration and conservation.
(a) If the governor determines and declares by executive order that there is a critical water deficiency, public water supply
authorities appropriating water must adopt and enforce water conservation restrictions within their jurisdiction that are
consistent with rules adopted by the commissioner.
(b) The restrictions must limit lawn sprinkling, vehicle washing, golf course and park irrigation, and other nonessential uses,
and hav appropriate penalties for failure to comply with the restrictions.
An ordinance that has been adopted or a draft ordinance that can be quickly adopted to comply
with the critical water deficiency declaration must be included in the plan (include with other
ordinances in Attachment 7 for Part III, Item 4). Enforcement responsibilities and penalties for
non - compliance should be addressed in the critical water deficiency ordinance.
Sample regulations are available at www.dnr.state.mn.us /waters
12
Table 9 Demand Reduction Procedures
Note: The potential for water availability problems during the onset of a drought are almost impossible to predict. Significant
increases in demand should be balanced with preventative measures to conserve supplies in the event of prolonged drought
conditions.
Condition `
Trigger(s)
Actions
Stage 1 (Mild)
Daily water use exceeds firm
Reduce hydrant flushing to an
supply capacity for 1 day
absolute minimum
Request (through radio and
newspaper) reduction of non-
essential water use
Enforce limits on lawn irrigation,
swimming pool filling, car
washing, and other similar
nonessential water uses
Stage 2 (Moderate)
Daily water use at 80 to 90
Total ban on lawn irrigation,
percent of total supply capacity
swimming pool filling, car
for 3 days
washing, and other similar
nonessential water uses
Increase penalties and fees for
violation of water conservation
ordinances
Eliminate street cleaning and other
non - critical municipal water uses
Stage 3 (Severe)
Daily water use at 90 to 100
Eliminate all water uses except
percent of total supply capacity
those necessary for human
consumption and fire protection
Inability to maintain storage
Purchase water from surrounding
volume, storage decreasing
cities if the emergency condition is
below 24 -hours emergency
limited to the Hopkins water
supply
supply system
Critical Water
Executive Order by Governor &
Stage 1: Restrict lawn watering,
Deficiency
as provided in above triggers
vehicle washing, golf course and
park irrigation and other
nonessential uses
Stage 2: Suspend lawn watering,
(M.S. 103G.291)
vehicle washing, golf course and
park irrigation and other
nonessential uses
F. Enforcement. Minnesota Statutes require public water supply authorities to adopt and
enforce water conservation restrictions during periods of critical water shortages.
13
Public Water Supply Appropriation During Deficiency.
Minnesota Statutes 103G.291, Subdivision I.
Declaration and conservation.
(a) If the governor determines and declares by executive order that there is a critical water deficiency, public water supply
authorities appropriating water must adopt and enforce water conservation restrictions within their jurisdiction that are
consistent with rules adopted by the commissioner.
(b) The restrictions must limit lawn sprinkling, vehicle washing, golf course and park irrigation, and other nonessential uses,
and h ave appropriate penalties for failure to comply with the restrictions.
An ordinance that has been adopted or a draft ordinance that can be quickly adopted to comply
with the critical water deficiency declaration must be included in the plan (include with other
ordinances in Attachment 7 for Part III, Item 4). Enforcement responsibilities and penalties for
non - compliance should be addressed in the critical water deficiency ordinance.
Sample regulations are available at www.dnr.state.mn.us /waters
Authority to Implement Water Emergency Responses. Emergency responses could be
delayed if city council or utility board actions are required. Standing authority for utility or city
managers to implement water restrictions can improve response times for dealing with
emergencies. Who has authority to implement water use restrictions in an emergency?
❑ Utility Manager ® City Manager ❑ City Council or Utility Board
❑ Other (describe):
Emergency Preparedness. If city or utility managers do not have standing authority to
implement water emergency responses, please indicate any intentions to delegate that authority.
Also indicate any other measures that are being considered to reduce delays for implementing
emergencv resnonses
N/A
14
PART III. WATER CONSERVATION PLAN
Water conservation programs are intended to reduce demand for water, improve the efficiency in
use and reduce losses and waste of water. Long -term conservation measures that improve overall
water use efficiencies can help reduce the need for short-term conservation measures. Water
conservation is an important part of water resource management and can also help utility
managers satisfy the ever - increasing demands being placed on water resources.
Minnesota Statutes 103G.291, requires public water suppliers to implement demand reduction measures before
seeking approvals to construct new wells or increases in authorized volumes of water. Minnesota Rules
6115.0770, require water users to employ the best available means and practices to promote the efficient use of
water. Conservation programs can be cost effective when compared to the generally higher costs of developing
new sources of supply or expanding water and/or wastewater treatment plant capacities.
A. Conservation Goals. The following section establishes goals for various measures of water
demand. The programs necessary to achieve the goals will be described in the following
section.
Unaccounted Water' calculate five year avers es with data from Table 1
Average annual volume unaccounted water for the last 1 5 ears;
286,898,800 gallons
Average percent unaccounted water for the last 5 years
29.5 ercent
AWWA recommends that unaccounted water not exceed 10 %. Describe goals to reduce
unaccounted water if the `average of the last 5 years exceeds 10%
The City has a significant amount of old infrastructure which is prone to water loss. The City is
currently investigating a meter replacement program which may account for a significant portion
of "lost" water that is currently not being billed. Street reconstruction projects are also replacing
water main and private services as allows. Additional water accounting such as estimating water
flushed from hydrants during spring flushing will reduce unaccounted for water. The City will
start to track water that is used but not billed such as flushing, fire fighting and water main
breaks to estimate this amount and track on the DNR Annual Report of Water Use forms.
Residential Gallons Per Capita Demand GPCD
Average residential GPCD use for the last 5 years (use data from Table
79 GPCD
1)
In 2002, average residential GPCD use in the Twin Cities Metropolitan Area was 75 GPCD.
Describe goals to reduce residential demand if the average for the last 5 years exceeds 75 GPCD.
The 5 year average does not significantly exceed the average of 75 gpcd. The City will continue
to educate the public about water conservation measures and enforce irrigation ordinances.
Total Per Capita Demand: From Table 1, is the trend in overall per capita demand over the past
10 years ❑increasing or ® decreasing? If total GPCD is increasing, describe the goals to
low
ower overall per capita demand or explain the reasons for the increase.
There is a slight decreasing trend in per capita water demand over the last 10 years.
15
Peak Demands calculate average ratio for last five
years using data from Table 1
Average maximum day to average day ratio
Meter testing
schedule (years)
1.94
If peak demands exceed a ratio of 2.6, describe the goals
for lowering peak demands.
3190
10
B. Water Conservation Programs. Describe all short-term conservation measures that are
available for use in an emergency, and long -term measures to improve water use efficiencies
for each of the six conservation program elements listed below. Short-term demand reduction
measures must be included in the emergency response procedures and must be in support of,
and part of, a community all - hazard emergency operation plan.
1. Metering. The American Water Works Association (AWWA) recommends that every
water utility meter all water taken into its system and all water distributed from its system
at its customer's point of service. An effective metering program relies upon periodic
performance testing, repair, repair and maintenance of all meters. AWWA also
recommends that utilities conduct regular water audits to ensure accountability.
Complete Table 10 (A) regarding the number and maintenance of customer meters.
Unmetered Systems: Provide an estimate of the cost to install meters and the projected water
savings from metering water use Also indicate any plans to install meters.
N/A
T A QT u i a !Rl ItV_fer L'n.. Mat -are
Number of ` _ v
Connections
VNumber of `''
Metered
Connections,
Meter testing
schedule (years)
Average age /meter
replacement schedule
ears
Residential
3190
3190
10
10/20
Institutional : '
As Needed
wells /intakes
10
10/20
Commercial
Treatment Plant
1
10
10/20
Industrial
10
10/20
Public„
Facilities
10
10/20
Other
10
10/20
TOTALS
3552
3552
Unmetered Systems: Provide an estimate of the cost to install meters and the projected water
savings from metering water use Also indicate any plans to install meters.
N/A
T A QT u i a !Rl ItV_fer L'n.. Mat -are
16
^ Number of
Meter testing
Average age /meter replacement
Meters '
schedule ears
schedule ears
Water Source
4
None
As Needed
wells /intakes
Treatment Plant
1
None
As Needed
16
2. Unaccounted Water. Water audits are intended to identify, quantify, and verify water
and revenue losses. The volume of unaccounted -for water should be evaluated each
billing cycle. The AWWA recommends a goal of ten percent or less for unaccounted -for
water. Water audit procedures are available from the AWWA and MN Rural Water
Association.
Frequency of water audits: ❑ each billing cycle ® yearly ❑ other:
Leak detection and survey: ❑every year ❑ every years ® periodic as needed
Year last leak detection survey completed: No leak detection surveys have been completed
Reducing Unaccounted Water. List potential sources and efforts being taken to reduce
unaccounted water.If unaccounted water exceeds 10% of total withdrawals, include the
timeframe for completing work to reduce unaccounted water to 10 % or less.
See Part III.A
3. Conservation Water Rates. Plans must include the current rate structure for all
customers and provide information on any proposed rate changes. Discuss the basis for
current price levels and rates, including cost of service data, and the impact current rates
have on conservation.
Billing Frequency: ® Monthly ❑ Bimonthly ❑ Quarterly
❑ Other (describe):
Volume included in base rate or service charge: 0 gallons
Conservation Rate Structures
❑ Increasing block rate: rate per unit increases as water use increases
❑ Seasonal rate: higher rates in summer to reduce peak demands
❑ Service charge or base fee that does not include a water volume
Conservation Neutral Rate Structure
® Uniform rate: rate per unit is the same regardless of volume
Non - conserving Rate Structures
❑ Service charge or base fee that includes a large volume of water
❑ Declining block rates- rate per unit decreases as water use increases
❑ Flat rate: one fee regardless of how much water is used (unmetered)
Other (describe):
Water Rates Evaluated: ® every year ❑ every years ❑ no schedule
Date of last rate change: February 2008
Declining block (the more water used, the cheaper the rate) and flat (one fee for an unlimited
volume of water) rates should be phased out and replaced with conservation rates.
17
Incorporating a seasonal rate structure and the benefits of a monthly billing cycle should also
be considered along with the development of an emergency rate structure that could be
quickly implemented to encourage conservation in an emergency.
Current Water Rates. Include a copy of the actual rate structure in Attachment B or list current
water rates including base /service fees and volume charges below.
See Attachment B
Non- conserving Rate Structures. Provide justification for the rate structure and its impact on
reducing demands or indicate intentions including the timeframe for adopting a conservation rate
structure.
N/A
4. Regulation. Plans should include regulations for short-term reductions in demand and
long -term improvements in water efficiencies. Sample regulations are available from
DNR Waters. Copies of adopted regulations or proposed restrictions should be included
in Attachment D of the plan. Indicate any of the items below that are required by local
regulations and also indicate if the requirement is applied each year or just in
emergencies.
® Time of Day: no watering between 11 am and 5 pm
(reduces evaporation) ® year around ❑ seasonal ❑ emergency only
® Odd/Even: (helps reduce peak demand) ® year around ❑ seasonal ❑ emergency only
❑ Water waste prohibited (no runoff from irrigation systems)
Describe ordinance:
❑ Limitations on turf areas for landscaping (reduces high water use turf areas)
Describe ordinance:
❑ Soil preparation (such as 4 " -6" of organic soil on new turf areas with sandy soil)
Describe ordinance:
❑ Tree ratios (plant one tree for every square feet to reduce turf evapotranspiration)
Describe ordinance:
❑ Prohibit irrigation of medians or areas less than 8 feet wide
Describe ordinance:
❑ Permit required to fill swimming pool ❑ every year ❑ emergency only
❑ Other (describe):
State and Federal Regulations (mandated)
® Rainfall sensors on landscape irrigation systems. Minnesota statute 103G.298 requires "All
automatically operated landscape irrigation systems shall have furnished and installed technology that inhibits or interrupts
18
operation of the landscape irrigation system during periods of sufficient moisture. The technology must be adjustable either
by the end user or the professional practitioner of landscape irrigation services."
® Water Efficient Plumbing Fixtures. The 1992 Federal Energy Policy Act established
manufacturing standards for water efficient plumbing fixtures, including toilets, urinals,
faucets, and aerators.
Enforcement. Are ordinances enforced? ® Yes ❑ No , If yes, indicate how ordinances are
enforced along with any penalties for non- compliance.
City employees will have the authority to issue fines to repeat offenders of watering restrictions.
19
5. Education and Information Programs. Customers should be provided information on how
to improve water use efficiencies a minimum of two times per year. Information should be
provided at appropriate times to address peak demands. Emergency notices and educational
materials on how to reduce water use should be available for quick distribution during an
emergency. If any of the methods listed in the table below are used to provide water
conservation tips, indicate the number of times that information is provided each year and attach
a list of education efforts used for the last three years.
Current Education Programs
Times/Year'
Billing inserts or tips printed on the actual bill
12
Consumer Confidence Reports
I
Local news papers
I
Community news letters
12
Direct mailings (water audit/retrofit kits, showerheads,
brochures
NA
Information at utility and public buildings
On-goin
Public Service Announcements
NA
Cable TV Programs
NA
Demonstration projects (landscaping or plumbing)
NA
K -12 Education programs Project Wet, Drinking Water Institute
NA
School presentations
NA
Events children's water festivals, environmental fairs
NA
Community education Annual Citizens Academy)
1
Water Week promotions
NA
Information provided to groups that tour the water treatment
)ant
As requested
Website address:
http://www.hopkinsmn.com/publicworks/Watersewer/index.htmi
On -going
Targeted efforts (large volume users, users with large increases
As- identified
Notices of ordinances include tips with notices
As required
Emergency conservation notices (recommended)
In Newsletter
Other:
See below
Proposed Education Programs. Describe any additional efforts planned to provide
conservation information to customers a minimum of twice per year (required if there are no
current ef forts).
For customers that think they may have water leakage problems, the City has remote read outs of
water meter readings for customers to track their water usage right from their refrigerator. This
will allow them quick read outs of overnight water usage that may indicate a leakage problem.
A packet of conservation tips and information can be obtained by contacting DNR Waters or the
Minnesota Rural Water Association (MRWA). The American Water Works Association
(AWWA) www.awwa.org or www.waterwiser.ora also has excellent materials on water
conservation that are available in a number of formats. You can contact the MRWA 800/367-
6792, the AWWA bookstore 800/926 -7337 or DNR Waters 651/259 -5703 for information
regarding educational materials and formats that are available.
20
6. Retrofitting Programs. Education and incentive programs aimed at replacing inefficient
plumbing fixtures and appliances can help reduce per capita water use as well as energy
costs. It is recommended that communities develop a long -term plan to retrofit public
buildings with water efficient plumbing fixtures and that the benefits of retrofitting be
included in public education programs. You may also want to contact local electric or gas
suppliers to see if they are interested in developing a showerhead distribution program for
customers in your service area.
A study by the AWWA Research Foundation (Residential End Uses of Water, 1999) found that the average
indoor water use for a non - conserving home is 69.3 gallons per capita per day (gpcd). The average indoor
water use in a conserving home is 45.2 gpcd and most of the decrease in water use is related to water efficient
plumbing fixtures and appliances that can reduce water, sewer and energy costs. In Minnesota, certain electric
and gas providers are required (Minnesota Statute 216B.241) to fund programs that will conserve energy
resources and some utilities have distributed water efficient showerheads to customers to help reduce energy
demands required to supply hot water.
Retrofitting Programs. Describe any education or, incentive programs to encourage the
retrofitting of inefficient plumbing fixtures (toilets, showerheads, faucets, and aerators) or,
appliances (washing machines).
Refrigerator magnet program will allow residents to quickly identify how water is being used.
Plan Approval. Water Supply Plans must be approved by the Department of Natural Resources
(DNR) every ten years. Please submit plans for approval to the following address:
DNR Waters or Submit electronically to
Water Permit Programs Supervisor wateruse(&dnr.state.mn.us
500 Lafayette Road
St. Paul, MN 55155 -4032
Adoption of Plan. All DNR plan approvals are contingent on the formal adoption of the plan by
the city council or utility board. Please submit a certificate of adoption (example available) or
other action adopting the plan.
Metropolitan Area communities are also required to submit these plans to the Metropolitan
Council. Please see PART IV. ITEMS FOR METROPOLITAN AREA PUBLIC SUPPLIERS.
21
METROPOLITAN COUNCIL
PART IV. ITEMS FOR METROPOLITAN AREA PUBLIC SUPPLIERS
Minnesota Statute 473.859 requires water supply plans to be completed for all local units of
government in the seven - county Metropolitan Area as part of the local comprehensive planning
process. Much of the required information is contained in Parts I -III of these guidelines.
However, the following additional information is necessary to make the water supply plans
consistent with the Metropolitan Land Use Planning Act upon which local comprehensive plans
are based. Communities should use the information collected in the development of their plans
to evaluate whether or not their water supplies are being developed consistent with the Council's
Water Resources Management Policy Plan.
>s. Provide a statement(s) on the principles that will dictate operation of the water supply 1
fnr examnle "Tt is the noliev of the city to provide good quality water at an affordable
rate, .while assuring this use does not have a long-term negative resource impact.
It is the policy of the City of Hopkins to provide safe, high quality potable water to its'
customers while maintaining the integrity of the natural resources, and protecting the capital
investment of the community by maintaining all parts of the water system to the best of our
ability.
Impact on the Local Comprehensive Plan. Identify the impact that the adoption of this water
supply plan has on the rest of the local comprehensive plan, including implications for future
growth of the community, economic impact on the community and changes to the
comprehensive plan that might result.
The City of Hopkins is essentially fully built out. However, redevelopment provides an
opportunity to provide localized improvements to the water distribution system, along with
providing conservation measures in new construction which should ultimately provide a
decrease in per capita water use.
Demand Proiections
Year Total Population Average Day Maximum Projected'
Community Served Demand Day Demand Demand
Population MGD ) (MGD) (MG
2010 17,900 17,900 2.63 5.26 960
2020 18,600 18,600 2.73 5.46 998
2030 18,900 18,900 2.78 5.56 1,014
Ultimate 1 20,000 1 20,000 1 2.94 5.88 1 1,073
Population projections should be consistent with those in the Metropolitan Council's 2030
Regional Development Framework or the Communities 2008 Comprehensive Plan update. If
I opulation served differs from total "population, explain in detail why the difference (i.e., service
to nther cnmm,mitiec_ not complete service within community etc.).
PLAN SUBMITTAL AND REVIEW OF THE PLAN
22
The plan will be reviewed by the Council according to the sequence outlined in Minnesota
Statutes 473.175. Prior to submittal to the Council, the plan must be submitted to adjacent
governmental units for a 60 -day review period. Following submittal, the Council determines
if the plan is complete for review within 15 days. If incomplete, the Council will notify the
community and request the necessary information. When complete the Council will complete its
review within 60 days or a mutually agreed upon extension. The community officially adopts
the plan after the Council provides its comments.
Plans can be submitted electronically to the Council; however, the review process will not begin
until the Council receives a paper copy of the materials. Electronic submissions can be via a
CD, 3 ' /2 " floppy disk or to the email address below. Metropolitan communities should submit
their plans to:
Reviews Coordinator
Metropolitan Council
390 Robert St,
St. Paul, MN 55101
electronically to:
watersupply(i�metc. state.mn.us
23
Emergency Telephone List
Following is a list of key utility and community personnel, contacts in adjacent
communities , and appropriate state contacts which may be contacted in an emergency
situation.
Water Supt.. Doug Anderson
952.548.6373
Water Crew Foreman Dave Goergen
952.939.1382
City Manager Rick Getschow
952.548.6301
Public Works Director Steven Stadler
952.548.6350
Mayor Gene Maxwell
952.939.1408
City Hall
952.935.8474
Police Department/Fire Department
952.938.8885
MN Dept. of Health, David Rindahl
Office
651.201.4660
General Information, Duty Officer
651.649.5451
MN Pollution Control Agency
651.297.2274
St. Louis Park City Hall
952.924.2500
St. Louis Park Water Supt. Scott Anderson
952.924.2558
Minnetonka City Hall
952.939.8200
Minnetonka Water Supt. Jim Malone
952.988.8410
Edina City Hall
952.927.8861
Edina Water Supt
952.826.0311