04-30-2012 JWC Agenda PacketAGENDA
JOINT WATER COMMISSION
1:30 pm — April 30, 2012
Council Conference Room
Golden Valley City Hall
1. Call to Order
2. Approval of Minutes — April 4, 2012
3. Tri -City Council Meeting on May 7, 2012 (Clancy)
4. Authorize Facilitator Proposal from SEH (Clancy)
5. New Hope Well Rehabilitation Project Update (Mathisen)
6. Hennepin County 9 Project Status Update (Mathisen)
7. Crystal Large Valve Replacement (Mathisen)
8. Golden Valley Metering Project Update (Clancy)
9. Other Business
10. Adjournment
This document is available in alternate formats upon a 72 -hour request. Please call
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JOINT WATER COMMISSION MINUTES
Golden Valley - Crystal - New Hope
Meeting of April 4, 2012
The Golden Valley — Crystal — New Hope Joint Water Commission meeting was called to order at
1:37 pm, in the City of Golden Valley Council Conference Room.
Commissioners Present
Tom Burt, City Manager, Golden Valley
Anne Norris, City Manager, Crystal
Kirk McDonald, City Manager, New Hope
Staff Present
Tom Mathisen, Director of Public Works/City Engineer, Crystal
Randy Kloepper, Utilities Superintendent, Crystal
Sue Virnig, Finance Director, Golden Valley
Jeannine Clancy, Director of Public Works, Golden Valley
Bert Tracy, Public Works Maintenance Manager, Golden Valley
Dave Lemke, Utilities Supervisor, Golden Valley
Pat Schutrop, Administrative Assistant, Golden Valley
Minutes of February 8, 2012 and March 1, 2012
MOVED by McDonald, seconded by Norris and motion carried unanimously to approve the minutes
of the February 8 and March 1, 2012 meetings.
Draft 2011 Financial Report
Virnig distributed the draft financial report and reported no comment. The draft 2011 Financial
Report was received and filed.
Water Interaction Study Update
The Joint Water Commission TAC received the results of the modeling portion of the study from
Barr Engineering Co. and the next step is to determine if the JWC wants to move ahead with the
bench testing. The TAC recommends the bench testing to determine how the well water will mix
with the water from Minneapolis and the filtering process in the reservoir. Test samples could be
taken from the New Hope well (at a cost of about $4,000) or sample neighboring wells. The JWC
discussed the pros and cons of collecting water from the New Hope well and benefit/cost ratio.
The consensus of the JWC is that it makes sense to do the bench testing. The TAC will direct Barr
to not sample the New Hope well at this time, but to sample nearby wells.
Tri -City Council Meeting on May 7, 2012
The three city councils met on May 11, 2011, and as a result of that meeting directed the JWC to
move ahead with the interaction study to the jar testing level, develop an implementation plan and
funding for a backup water supply, and dialogue with the City of Minneapolis about the cost -benefit
of digging wells.
The draft agenda for the May 7, 2012 meeting is (1) the feasibility of the backup water supply, and
(2) an update on surface water issues in the vicinity of Winnetka Avenue and Medicine Lake Road,
Terra Linda Drive, and the DeCola Ponds neighborhood. Clancy has invited Barr Engineering Co.
to give the presentation on the interaction study findings. The general outline will include
background on possible risks to the water supply at plant and distribution system to the reservoir,
risk to the river, water system sustainability, water interaction with Minneapolis water supply, and
(:\Joint Water Commission\JWC Minutes\2012 JWC Minutes\04-04-12 JWC Minutes.doc
Joint Water Commission
April 4, 2012
Page 2of2
cost of a backup supply. The cost to dig a new well is about $700,000 per well (approximate
number of wells needed is four).
The city councils will want an implementation plan and costs associated with the backup water
supply to budget accordingly in their capital improvement programs. Virnig will put together a
couple of options to include in Barr's presentation that will show the cost of digging the wells and
what it will do with the rates.
Barr Engineering Co. will also give the presentation on the DeCola Ponds area study
Bonnie Morey, Short Elliott Hendrickson, Inc., will facilitate the discussion to help develop
consensus and direction for moving forward.
The JWC will review Barr's presentation at its May 2, 2012 meeting.
Approve Contract for Replacement of Two 16" Gate Valves at 32nd and Douglas Drive
Quotes were received from United Water & Sewer Co., Dave Perkins Contracting, Inc. and Valley
Rich Co., Inc. for the valve replacement project.
MOVED by Norris, seconded by McDonald and motion carried unanimously to approve the quote
received from Dave Perkins Contracting, Inc. in the amount of $59,650 for the replacement of two
16 -inch gate valves at 32nd and Douglas Drive.
Minneapolis Cost of Service Model
In an attempt to get an update for this meeting, Burt left a message with Scott Harder and is
waiting for his response. He believes the cost of service model will start in the fall.
POST MEETING NOTE: On Thursday, April 5, Scott Harder forwarded a schedule of the cost of
service timeline to the JWC.
Other Business
Construction of the County Road 9 project is now scheduled for 2014 and 2015.
Clancy reported that Steve Kotke and Bernie Bullert, City of Minneapolis, will be meeting with
Golden Valley staff to discuss the meter replacement project and unallocated water use.
Next Meeting
The next scheduled meeting is Wednesday, May 2, 2012, at 1:30 pm.
Adjournment
Chair Burt adjourned the meeting at 2:19 pm.
Thomas D. Burt, Chair
ATTEST:
Pat Schutrop, Recording Secretary
(:\Joint Water Commission\JWC Minutes\2012 JWC Minutes\04-04-12 JWC Minutes.doc
1 . Call to Order
JOINT CITY COUNCIL WORK SESSION
(Crystal, Golden Valley, and New Hope City Councils)
AGENDA SUMMARY
MAY 7, 2012
6:30 P.M.
Crystal Community Center
4800 Douglas Drive
Crystal A -B Room
Open for public observation
2 . Attendance (list of attendees on back of agenda)
3. Update on the Feasibility of Backup Water Supply
4. Update on Surface Water Issues in the Vicinity of Winnetka Avenue and Medicine Lake
Road, Terra Linda Drive, and the DeCola Ponds Neighborhood
5. Other Business
6. Adjournment
*Documentation will be handed out at the work session.
Participants may include the following:
CRYSTAL COUNCIL:
ReNae Bowman, Mayor
Dave Anderson, Council Member
Julie Deshler, Council Member
Joe Selton, Council Member
Mark Hoffmann, Council Member
John Budziszewski, Council Me
Janet Moore, Council Membe
CRYSTAL STAFF:
Anne Norris, City Mana
Tom Mathisen, Directo Publi s
Rand Kloe er, erinten
NEW HOPE COUNCIL:
Kathi Hemke ayor
John Elder it Mem r
Eric Lammle, 'I Me
Dan Stauner, Co ber
Andy Hoffe, Council ber
NEW HOPE STAFF: Kir %ald, City Man
Gu rector of Pu orks
GOLDEN VALLEY COUNCIL:
Shep ris y
DeDe S n, Counc ember
Mike Frei g, Counci ember
Joanie Cla n, Council Member
Paula Pente ncil Member
GOLDEN Y STA y Manager
Jeanni lancy, Director of Public Works
Sue Virnig, Finance Director
liver, City Engineer
rt Tracy, Public Works Maintenance Manager
Pat Schutro , Recording Secretary
OTHER Sandra Colvin Roy, Minneapolis Council Member
Heidi Hamilton, Minneapolis Deputy Public Works Director
Bernie Bullert, Minneapolis Water
Bonnie Morey, SEH, Inc.
Brian LeMon, Barr Engineering Company
Karen Chandler, Barr Engineering Company
4/30/2012
Purpose of this work session
Inform you of risks associated with your water supply
Update on emergency supply work since last year
Obtain direction for next steps
To ensure a water supply under emergency conditions
where Minneapolis supply to the JWC is interrupted
Peace of mind for residents during an emergency
Secure business viability during an emergency
Where are we going...
* JWC System Facts
* Risks
* Current Emergency Responses
* Current Planning Results
+ Cost Considerations
» Next Steps
}
JWC System
r I
? o
Supply & treatment by
Minneapolis
Crystal reservoir -19 MG
Golden Valley res. -9 MG
Elevated storage-9.5MG
Limited emergency supply
New Hope Well e
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2
4/30/2012
Supply: Mississippi River
Treated at Fridley & Columbia
Heights facilities
Softened and filtered
No current emergency supply
Emergencysupply being
planned now
0
IWC Water Facts
Water quality Water Use
Softened filtered water JWC Avg. Day-7MG/Day
Low in iron & manganese Peak day -t8 MG
Variable in temperature 2.5 BG/year
Who is using our water?
Future Trends
Residential: 76.8%(5.4 MGD)
Stable to declining use trends
Stable population (slight
Commercial: 18.1%(t.3 MGD)
increase projected)
Decline due to:
Industrial: 5%(o.3 MGD)
Conservation (80 to 75 gpcd)
Leak detection and repair
Fixture replacement
L:JWP Risks e°
a,
Risk
Mechanical Failure
Power Failure
Major reservoir failure
Short term supply
interruptions
Long term supply interruption
Mitigation
Existing redundant systems
* Multiple distant delivery points
Multiple reservoirs
* > Three average days supply In
storage
* New Hope well
Long
Term
Interruption:
Risks
Higher Probability Risks
* Drought(3o's, 88)
* Flooding (65,69,tt)
* Tornado (65, n)
* Loss of Power
* Bottleneck
* Color means this has occurred but
Without long term interruption
Other Risks
Fire/explosion
* Spill
* Work Stoppage
* Chemical Reaction/Spill
* Terrorism and Cyber attacks
* Operator Error
* Water Hammer
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4
4/30/2012
Demand Reduction Measures
Stage t: Voluntary Reduction Measures
Stage z: Mandatory Reduction Measures
Stage 3: Mandatory Water Allocation Restrictions
based on priority uses
MN Statutes: io3G.26i Water allocation priorities
Domestic water supply, excluding industrial and
commercial uses of municipal water supply, and use for
power production that meets the contingency planning
provisions
a use of water that involves consumption of less than
io,000 gallons of water per day
agricultural irrigation, and processing of agricultural
products involving consumption in excess of lo,000
gallons per day
Priority
Uses
MN Statutes: io3G.26i Water allocation priorities
Domestic water supply, excluding industrial and
commercial uses of municipal water supply, and use for
power production that meets the contingency planning
provisions
a use of water that involves consumption of less than
io,000 gallons of water per day
agricultural irrigation, and processing of agricultural
products involving consumption in excess of lo,000
gallons per day
4/30/2012
Priority Uses
power production in excess of the use provided for
in the contingency plan
uses, other than agricultural irrigation, processing of
agricultural products, and power production,
involving consumption in excess of 1o,000 gallons
per day
nonessential uses, lawn sprinkling, car washing etc
Concept Under Consideration
New Hope Well
Well near Crystal Reservoir
Well near Golden Valley Reservoir
Well —1/4 mile from Golden Valley Reservoir
Total supply -8 MGD enough for current average day
Work Since Last Year
New Hope Well Emergency Reactivation Request
January of 2012 (Regulatory requirement to allow use
of existing New Hope well)
Water Interaction Study to determine impacts of
adding unsoftened groundwater to current system
IVA
i ��
Minneapolis Water
Well Water
Softened
Unsoftened
Low in iron and manganese
Relatively high in iron and
Variable temperature (upper
manganese
30's to lower 7o's F)
Constant temp (-50's F)
pH 8 t 8.3
pH 6.7 to 7.5
Two phased study
Computer Model of Chemical Interactions
Identify potential management methods
Lab Tests to Verify Model Results
Evaluate what management methods will be needed
Look for unexpected results
Identify what users would notice
4/30/2012
7
/ GrundwatRSampG
\ L b Setup
/
4/30/2012
F]
Sample
Locations
»»»a
for Lab Work
»
/ GrundwatRSampG
\ L b Setup
/
4/30/2012
F]
Results
Chemical addition to manage iron from well water
Monitor pH during transition to all groundwater
pH adjustment not likely needed for emergency
What NILld you notice?
Move from soft to hard water (more soap use)
Winter Emergency: move from very cold to cool water
Summer Emergency: move from warm to cool water
More iron taste than now
Remember this is an emergency and you have water!
4/30/2012
we
LApproximate Cost to Implement
Wells: —$2.9 M
New Hope Well rehabilitation
Adding three new wells
Minor chemical treatment to disinfect and control iron
Piping: —$1.3M
Piping wells to reservoir
Connection into reservoir
Total: —$4.2 M to design and build
2009 1,006,879,000 659,025,497 705,329,968 2,371,234,445
2010 887,880,000 617,138,892 637,204,200 2,142,223,092
2011 934,773,000 575,591,136 624,889,300 2,135,253,436
Average billed consumption per year 2,216,236,991
Rate Impacts to You
$4.2 M over 1year
Adds $1.90/l000 gallons (43% increase)
$4.2 M over 6 years:
Adds $0.32/1000 gallons (7% increase).
$4.2 M over to years:
Adds so.19/l000 gallons (4.3% increase).
4/30/2012
10
Rate
Implications:
Basis
2009 1,006,879,000 659,025,497 705,329,968 2,371,234,445
2010 887,880,000 617,138,892 637,204,200 2,142,223,092
2011 934,773,000 575,591,136 624,889,300 2,135,253,436
Average billed consumption per year 2,216,236,991
Rate Impacts to You
$4.2 M over 1year
Adds $1.90/l000 gallons (43% increase)
$4.2 M over 6 years:
Adds $0.32/1000 gallons (7% increase).
$4.2 M over to years:
Adds so.19/l000 gallons (4.3% increase).
4/30/2012
10
Options
Site and drill new wells
* Wait on Minneapolis study
* Study additional options
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11
Site and drill new wells
* Wait on Minneapolis study
* Study additional options
4/30/2012
11
Medicine Lake Road & DeCola Ponds
Flood Mitigation Analysis
• 1970's — significant
flooding around
DeCola Ponds E & F
• 1984 —lawsuit
settled; property
owners control and
operate the DeCola
Pond F outlet
• More recent flooding (2006 & 2010):
—Terra Linda Drive & Medicine Lake Road —
property damage
— Rhode Island Ave
5/1/2012
1
• City of Golden Valley hired Barr to perform
flood mitigation study
• Study results — extensive flooding, complex
system, expensive to resolve
• Intercommunity watershed — solution requires
cooperation and coordination of Golden
Valley, New Hope and Crystal
• Staff from the three cities met twice
• High cost to resolve problem, high cost of
doing nothing, and the need for an
intercommunity solution
Medicine Lake Road and Decola Ponds M
watershed
a
rw
5/1/2012
N
11 ••• • lain
5/1/2012
N
11 alternatives analyzed
— Review upstream storage in Crystal, New
Hope, and Golden Valley
— Review additional storage at DeCola Ponds
— Diversion of flows
— Lower DeCola Ponds water levels
— Lower overflow elevations
Results used to identify alternatives for
more study
• Seven more detailed alternatives
• Costs from $3.7 - $24.5 million, not
including land & easement acquisition or
wetland mitigation costs
Medicine Lake Rd flooding
— Solution will require significant amount of
additional flood storage (33 ac -ft)
— Not reasonable to provide all of the storage
downstream, some must be provided at Medicine
Lake Rd.
— Not reasonable to resolve with additional
downstream capacity (very expensive to divert)
— Reducing flooding at Medicine Lake Rd does not
affect the flood levels on DeCola Ponds
5/1/2012
3
DeCola Ponds flooding:
— To reduce flooding on DeCola Ponds E & F
requires diversion of stormwater flows away
from DeCola Pond F, and the development of
additional downstream storage
— Not reasonable to resolve with upstream
storage
— Not reasonable to reduce flooding to
completely eliminate flooding of homes
—Alternative: acquire at -risk homes
Flood mitigation analysis — conclusions
• Costs to reduce flooding at Medicine Lake
Rd and at DeCola Ponds:
$5.8 - $6.8 million
Cities of Golden Valley, New Hope and
Crystal should cooperate to:
• Perform a study of long-
term land use changes that
incorporate flood mitigation
needs
• Based on study results, P- iv
decide what flood mitigation
projects to pursue
New Hope
5/1/2012
4
5/1/2012
19
Building a Better World
for All of Us"
April 25, 2012
Joint Water Commission
C/O Ms. Jeannine Clancy
City of Golden Valley
7800 Golden Valley Rd.
Golden Valley, MN 55427-4508
Dear Ms. Clancy:
RE: Joint Water Commission
Meeting Planning and Facilitation Services
Thank you for the opportunity to present this brief letter proposal to the Joint Water Commission to
provide facilitation services at the Joint Water Commission, Tri -City Council meeting on May 7, 2012.
This meeting will consist of two main agenda items: update on the feasibility of a back-up water supply
and update on surface water issues.
SEH will work with you and the Joint Water Commission to plan the meeting, develop an appropriate
agenda, and facilitate the May 7 meeting.
SEH proposes to provide the above facilitation services on an hourly basis of $150/hour. SEH estimates
a total of 8 to 12 hours for these services.
We look forward to working with you and the Joint Water Commission in your efforts to move forward with
directives for both the back-up water supply and surface water issues.
Sincerely,
Bonnie Morey
Manager of Learning and Development
Accepted on this
Joint Water Commission
By:
Title:
day of
2011
city of f
golden'MEMORANDUM
valley Public Works Department
763-593-80301763-593-3988 (fax)
Date: April 30, 2012
To: Joint Water Commission
From: Mitchell Hoeft, EIT, Engineer
Subject: Joint Water Commission Water Meter Improvements
Members of Golden Valley and Minneapolis staff recently met with representatives from Stantec
to discuss the upcoming water meter replacement project in Golden Valley. At the meeting,
certain technical decisions were made regarding the type of meter to be installed and piping
configuration that would be required by the two cities. It was also determined that the project
would likely be bid in late June or early July 2012. Construction is currently scheduled to start in
late July/early August and completed before winter 2012. Stantec is now working on the final
design of the system and will present plans to the Minnesota Department of Health for review
prior to starting the project. The cities will also have another opportunity to comment on the
plans before finalized.
G:\JWC\Corres\JWC—WaterMeterlmprovementsUpdate-043012.docx