D-6a and b: Well 15 Improvements Xcel Contract and COCITY of
CHANHAS3EN
7700 Market Boulevard
PC Box 147
Chanhassen, MN 55317
Administration
Phone: 952.227.1100
Fax: 952.227.1110
Building Inspections
Phone: 952 227.1180
Fax 952.227.1190
Engineering
Phone: 952.2271160
Fax: 952.227.1170
Finance
Phone: 952.227.1140
Fax: 952.227.1110
Park & Recreation
Phone: 952 227.1120
Fax: 952.227.1110
Recreation Center
2310 Coulter Boulevard
Phone: 9522271400
Fax: 952.227.1404
Planning &
Natural Resources
Phone: 952.227.1130
Fax: 952.227.1110
Public Works
7901 Park Place
Phone: 952.227.1300
Fax: 952.227.1310
Senior Center
Phone: 952 227.1125
Fax: 952.227.1110
Wall
www.c Lchan hasse n. mn.us
MEMORANDUM
TO: Todd Gerhardt, City Manager
FROM: Paul Oehme, Director of Public Works /City Engineer�r a
DATE: July 27, 2015
WIM
SUBJ: Well No. 15 Improvements, Project No. 1:
a. Approve Xcel Energy Underground Service Contract for
Power Extension
b. Approve Change Order for Associated Improvements to Meet
Dept. of Health Review
PROPOSED MOTION
"The City Council approves Xcel Energy Underground Service Contract for
Power Extension in the amount of $51,265.56 and Approve Change Order for
Associated Improvements to Meet Dept. of Health Review in the amount of
$36,040.
City Council approval requires a simple majority vote of the City Council
present.
BACKGROUND
At the July 28, 2014 work session, staff discussed the need for an additional well.
At the April 28, 2014 Council meeting, the City Council awarded a consultant
contract to Barr Engineering for Well No. 15 engineering services.
On November 13, 2014, an open house was held for the proposed well at Pheasant
Hill Park.
At the February 9, 2015 City Council meeting, the Council approved a well drilling
contract to Minnesota Builders, Inc. (MBI).
The City of Chanhassen continues to grow and with this growth comes the need to
add infrastructure to meet the growing demands of the community. The City's
estimated water supply is 7,150 gpm and the current maximum day water demand is
estimated to be 7,505 gpm. This suggests that the City's existing water supply is
slightly undersized to meet current demands of the projected summer maximum day.
The estimated firm water supply assumes the aquifer can yield at the current amount.
As the City continues to grow, the difference between the firm water supply and the
water demand will increase. The last municipal well drilled was in 2009.
Chanhassen is a Community for Life . Providing for Today and Planning for Tomorrow
Todd Gerhardt
Well No. 15 Improvements
July 27, 2015
Page 2
Staff reviewed several sites for a new well. These sites included:
• Properties along Galpin Boulevard
• Lake Ann Park
• The site of the old Melody Hill Tower east of Minnetonka Middle School West
• A property next to Powers Pointe Development
• Pheasant Hill Park
The East Water Treatment Plant is close to capacity at this time with the existing well water
available. The property adjacent to the Powers Pointe development is not recommended for a well at
this time since it would be treated at the East Water Treatment Plant. As the aquifers in the area
lower and become less productive, a new well for the East Water Treatment Plant may be necessary.
The sites along Galpin Boulevard that were reviewed are premature at this time for a well. One site
is on the land that is proposed for the West Water Treatment Plant. The other is on a property that
could develop in the near future. The old Melody Hill tower and cellular communication equipment
were still on the existing site so a new well cannot be drilled at this time. Lake Ann Park has also
been reviewed for a new well. The future treatment of this well would be at a future West Water
Treatment Plant. It was recommended the future Galpin Boulevard wells be developed first before
the Lake Ann well site is developed for future treatment staging and raw water pipe extension
phasing.
The recommended site for Well No. 15 is in Pheasant Hill Park just north of Lake Lucy Road. The
well will use the Jordan (PDCJ) aquifers. The location in the northern part of town is "upstream"
from a groundwater perspective meaning there is an estimated additional water column available at
this location as compared to other sites in the City. There are no known contamination sources near
the proposed well that pose a realistic threat based on information available from the Minnesota
Pollution Control Agency. The site should be considered not vulnerable under wellhead protection
guidelines. There are several shallow private wells in the Pheasant Hill Park area and there are
shallower Prairie du Chien wells. A confining layer is between the Prairie du Chien and the Jordan
aquifer that will limit the anticipated draw down of the aquifer. The City has gathered the private
well information off of State records and included it into the model. The Barr Engineering model
shows no impact to these wells at this time. As the aquifers in the area potentially lower, future
impacts may occur.
To power this well, Xcel Energy will need to extend 3 -phase power to the site. The closest location
to extend power from is at Gaplin Boulevard. Xcel Energy plans to extend a buried power line from
Galpin Boulevard along Lake Lucy Road to the well site. Xcel's fee for this work is $51,265.56.
As part of the early design, staff contacted the Minnesota Department of Health (MDH) to discuss
the preliminary design including the proposed below grade vault containing the electrical gear. This
is the same design used by the City and approved by the MDH. The City has used below grade
vaults for well improvements so most of the infrastructure is not above ground and hidden from
public view. The MDH indicated at that time that the vault would be acceptable. Once design was
completed the plans and specifications were sent to the MDH for review in January 2015. Initial
feedback on the submitted plans and specifications were received on March 11, 2015. At that time,
gAeng \public \_2014 projects \14 -04 well W15 \bkgd 072715 xcel agre & co.docx
Todd Gerhardt
Well No. 15 Improvements
July 27, 2015
Page 3
the MDH objected to the below grade electrical vault and below grade chemical feed injection.
After discussions between the City and Barr Engineering, the City chose to modify the plans and
specifications to allow for injection of the water treatment chemicals above grade and requested that
the MDH allow the electrical components to remain in the below grade vault. This was the most
cost effective solution. The modifications in general included:
• Addition of 4 -inch piping and a booster pump for feeding the chemical into the water main
• Increasing the size of the onsite building to accommodate the additional piping, pumps, and
chemical injection points
• Electrical equipment and controls modifications required for operation of the booster pump
• Removal of the safety shower from the project (to be supplied by the City)
The net cost of the change order is an increase of $36,040.00.
Because of the MDH requested changes, the project has also been delayed. The project is scheduled
to be completed by the end of October.
The project was budgeted in the 2015 Capital Improvement Plan.
Well Programmed Funds $ 1,400,000.00
Well Construction Work $ 1,111,072.75
Engineering Services $ 127,695.00
Xcel power extension $ 51,265.56
Change Order $ 36,040.00
Project Expenditures $ 1,333,203.31
Project Under Programmed Amount $ 73,925.69
Attachments: Memo from Barr Engineering dated July 1, 2015
Xcel Energy Underground Service Contract
Location Map
CIP
c: Brian LeMon, Barr Engineering
gAeng \public \_2014 projects \14 -04 well # 15 \bkgd 072715 xcel agre & co.docx
resourceful. naturally. BARR
engineering and environmental consultants
Memorandum
To:
Paul Oehme, City of Chanhassen
From:
Dan Nesler
Subject:
Chanhassen Well 15 Change Order lb
Date:
July 1, 2015
Project:
23-10 -1010
The intent of this memorandum is to document changes to the Well 15 project required by the Minnesota
Department of Health (MDH).
As a part of the Well 15 project, an initial call was made to the MDH to discuss the concept for the design
including the below grade vault containing the electrical gear. The MDH indicated at that time that the
vault would be acceptable. Once design was completed the plans and specifications were sent to the
MDH for review in January 2015. Initial feedback on the submitted plans and specifications were received
on March 11th, 2015. At that time, the MDH objected to the below grade electrical vault and below grade
chemical feed injection. After discussions between the City and Barr, the City chose to modify the plans
and specifications to allow for injection of the water treatment chemicals above grade and request that
the MDH allow the electrical components to remain in the below grade vault. Modified plans were
resubmitted to the MDH on in April 2015 and approved in May 2015 (approval letter attached).
Minnesota Builders, Inc. (MBI) is the general contractor that was awarded the Well 15 project. On June
11th 2015, MBI submitted change order request 1 b for the modifications required for injection of the
chemicals above grade (attached). These modifications included:
• Addition of 4 -inch piping and a booster pump for feeding the chemical into the watermain
• Increasing the size of the onsite building to accommodate the additional piping, pumps, and
chemical injection points
• Electrical equipment and controls modifications required for operation of the booster pump
• Removal of the safety shower from the project (to be supplied by the City)
The net cost of the change order is an increase of $36,040.00. Barr has reviewed the costs submitted for
this additional work, and it is our opinion that these costs are reasonable.
Barr Engineering Co. 4700 West 77th Street, Suite 200, Minneapolis, MN 55435 952.832.2600 www.barr.com
L XcelEnergy
UNDERGROUND SERVICE FORM
In consideration of Northern States Power Company, a Minnesota
'Xcel Energy', extending its facilities to make 2771480 volt .
underground service available to (Customer)
at (Service Address) 1720 LAKE LUCY LANE
the sum of FIFTY 4NE THOUSANDTWO HUNORED SUnYFNE AND WlID —
will be paid to Xcel Energy by (if other than above)
Address (if other than above) 7700 MARKET BLVD
corporation ( "Xcel Energy') hereinafter called
3 phase, 4 wire
CITY OF CHANHASSEN
_ (City) CHANHASSEN, MN 55317
_ Dollars ($ 51,265.56 )
CITY OF CHANHASSEN
City /State/Zip CHANHASSEN, MN 55317
In accordance with the following terms:
RETURN SIGNED FORM AND PAYMENT IN FULL PRIOR TO START OF CONSTRUCTION
Receipt of the above amount hereby acknowledged on behalf of Xcel Energy by
1. The Customer hereby grants Xcel Energy the right, privilege and easement to install, operate and maintain its
underground facilities on the property as described above and /or the approximate location as shown on the
attached "Exhibit K.
2. The Customer also agrees that, prior to Xcel Energy starting work, Customer shall ensure that (a) the route of Xcel
Energy's underground installation shall be accessible to Xcel Energys equipment; (b) all obstructions shall be
removed from such route at no cost or expense to Xcel Energy; (c) all privately -owned underground facilities such
as sewer, water, sprinkler systems, invisible fences, or gas, electric or communication lines are marked or exposed;
(d) ground elevation along the route shall not be above or more than four (4) inches below the finished grade; and
(e) the area under the transformer pad shall be compacted to at least 2000 lbs. /sq. ft.
3 CITY OF CHANHASSEN agrees to pay all additional costs incurred by Xcel Energy
because of (a) surface or subsurface conditions that impair the installation of underground facilities, such as
rock formations, etc., and (b) sidewalks, curbing, black top, paving, sod or other landscaping and
obstructions along the cable route. Xcel Energy will backfill trench with existing soil. Restoration of
construction area on Customer property is the responsibility of the Customer.
4. Xcel Energy is not responsible for any Customer -owned underground facilities not marked or exposed at the time
service is installed.
5. The underground installation may be subject to a winter construction charge if construction occurs between
October 1 and April 15. CITY OF CHANHASSEN agrees to pay this charge if
Xcel Energy determines winter conditions, as defined in the General Rules and Regulations of Xcel Energy's
Electric Rate Book as they exist at the time the underground facilities are installed. Xcel Energy will waive the
winter construction charge if prior to October 1st the Customer is ready to accept electrical service, has executed
this form and has notified Xcel Energy in writing that the requirements of Paragraph 2 hereof have been
fulfilled.
6. The underground facilities installed by Xcel Energy, shall be the property of Xcel Energy and any payments made
by the Customer, or their Customer's contractor, shall not entitle the Customer to any ownership interest or rights
therein.
7. The Customer agrees to pay the cost of installling or relocating any portion of said underground facilities from the
Company's designated location, if relocation is made to accommodate the customer's needs, or necessary because
of Customer alterations to the grade, additions to structures, installation of patios, decks or gardens or any other
surface or subsurface condition that makes maintenance of Xcel Energy's facilities impractical.
8. Customer must provide, at minimum, the following clearance around the transformer: front, 10 feet; sides and back,
2 feet. EXCEPTION: side facing building must have 30" clearance. These clearances must be at the same grade as
the transformers. If screening is to be used, the area in front of the transformer must be left open or a hinged door,
easily operable by one person, must be provided. The area must be accessible 24 hours a day.
L XcelF.re9y
$ 0.00 Excess U.G. Distribution Lateral $ 0.00 Winter Const. Charge
(Primary Cable) (See Paragraph 5)
$ 0.00 Excess U.G. Service Lateral $ 0.00 Specific Service Location or Route
$ 0.00 U.G. Service Lateral $ 0.00 Replace Overhead Line with Underground
(Secondary Service From Utility Pole)
$ 0.00 U.R.D. Install Including UG Service Lateral $ 0.00 Temporary Service KVA
$ 51265.56 U.G. Distribution Lateral $ 0.00 Other (Explain)
(Primary Cable)
Trench Ft. $ 51265.56 TOTAL
"Customer agrees to pay monthly Residential Service Underground rate of the type of installation indicated by a double
asterisk.
❑Applicable =Not Applicable
Dated this day of JUNE 2015 Dated this day of
Customer CITY OF CHANHASSEN Contractor
Print Full Name Signature Print Full Name Signature -
Customer Rep Contractor Rep
Print Full Name Signature Print Full Name Signature
Xcel Energy Rep BRIAN BROUCEK- SUPERVISOR Xcel Energy Work Order # 461626
Print Full Name Signature
Construction $ 51,265.56 Removal $ Total $ 51,265.56
Form 17 -2759
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Projects By Funding Source
City of Chanhassen, MAT
2015 thru 2019
Project# W -048
Project Name Well #15 -7
.....o�.,, xa rvu- iuq -sl >l Account #3
Account 92 Account #4
Department
Water System Improvements
Contact
Paul Oehme
Type
Improvement
Useful Life
report.
Category
Utilities
Priority
n/a
"-V. I Total Project Cost: $1,400,000
:11 is proposed to meet the water needs of the growing community. This project is needed because of growth, summer water usaac and
levels.
ration
the growing water needs of the City planned for in the 2o08
water comprehensive plan and justified with a feasibility
report.
Expenditures
2015 2016 2017 2018 2019
Total
Construction
1,400,000
1,400,000
Total 1,400,000
1,400,000
Funding Sources
2015 2016 2017 2018 2019
Total
Water Utility Fund
1,400,000
1,400,000
Total 1,400,000
1,400,000