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Prior Lake,MN 55372
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CITY COUNCIL AGENDA REPORT
MEETING DATE: JANUARY 26, 2015
AGENDA#: 5H
PREPARED BY: KATY GEHLER, PUBLIC WORKS DIRECTOR
PRESENTED BY: KATY GEHLER
AGENDA ITEM: CONSIDER APPROVAL OF A RESOLUTION AWARDING A CONTRACT
TO BERGERSON CASWELL WELL COMPANY FOR THE
MAINTENANCE AND REPAIR OF WELL#4
DISCUSSION: Introduction
The purpose of this agenda item is to seek City Council authorization to enter
into the City's Standardized Contract with Bergerson Caswell Well Company
to complete maintenance to Well #4 in the amount of$23,040.
History
The City operates seven wells that provide the water supply to the residents.
Each year the above ground components are visually inspected with more
in depth inspections completed every 6-8 years. These inspections include
pulling the pump from the well, opening the pump up and testing the
electrical components, televising the casing and well bowl, and identifying
any maintenance repairs. These repairs can range from pump maintenance,
well casing replacement, motor repair, and column pipe replacement to full
redevelopment (cleaning excess material out of the well cavern).
Well 4 was installed in May 1975 and has been a primary well during the
summer months. This well typically runs 12-14 hours a day producing 1,100
gallons of water per minute from the Jordan Aquifer. Since the last full
inspection and maintenance in 2008, well #4 has pumped 496,043,000
gallons of water. This well has not had any major maintenance completed
since 2008.
Current Circumstances
A complete inspection of Well #4 was completed at the end of 2014 by
Bergerson Caswell Well Company. The motor, and pump assembly were
reported in excellent condition. The video of the well hole did not show any
issues or the need to complete redevelopment. However, the column pipe
that runs from the well motor on top to the pump at the bottom of the well
showed significant signs of corrosion due to manganese, natural water
chemistry, and velocity. If the pipe was reinstalled there is concern that it
could not support the pump.
This pipe was originally installed as a 10" pipe which allows for industry
standard velocities at the given flow rate. This pipe was later replaced with
a reduced 8" diameter pipe. Although the 8" pipe can pass the flow needed,
Phone 952.447.9800 / Fax 952.447.4245/www.cityofpriorlake.com
it is at a higher velocity. The excess velocity creates additional eddies or
turbulence in the water column which degrades the pipe faster due to friction.
The cost difference of the pipe is $2,000. However, there is a much higher
likelihood that the entire column pipe will not need to be replaced at the next
scheduled maintenance for an overall cost savings.
In accordance with the City's purchasing policy two quotes were obtained
for the complete inspection and televising of well#4. Bergerson Caswell Well
Company ($4550) and Traut Well Company ($5100). Both Companies are
well respected and fully qualified.
Based on these quotes, Bergerson Caswell has the lower hourly rate and is
recommended to complete the reinstall. Moreover, Bergerson Caswell has
done the work to date on the well eliminating any prospect of
misunderstanding if a second company is hired to complete the work begun
by another. This could be particularly true on warranty related issues.
Conclusion
Staff is recommending awarding the contract to Bergeson Caswell Well
Company.
ISSUES: The maintenance being proposed is typical for a well of this age especially
considering the water it produces.
FINANCIAL The water operating budget anticipates this type of maintenance on an
IMPACT: annual basis.
ALTERNATIVES: 1) Approve a resolution as part of the consent agenda authorizing the
execution of the City's Standardized Contract with Bergerson Caswell
Well Company for maintenance and repair of Well #4.
2) Table this agenda item for a specific reason.
3) Deny this agenda item for a specific reason and provide staff with
direction.
RECOMMENDED Alternative#1
MOTION:
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RESOLUTION 15-xxx
A RESOLUTION AWARDING A CONTRACT TO BERGERSON CASWELL WELL COMPANY
FOR THE MAINTENANCE AND REPAIR OF WELL#4
Motion By: Second By:
WHEREAS, Well#4 was last inspected in 2008 and has not had any major maintenance; and
WHEREAS, Quotes were solicited from two well companies to pull, inspect and televise the well. The
quotes are as follows, Traut Well Company in an amount of$5,100 and Bergerson Caswell
Well Company in the amount of$4,550; and
WHEREAS, A full inspection was completed on Well #4 which showed the need to replace the column
pipe and pump shafts; and
WHEREAS, Bergerson Caswell Well Company completed the full inspection, therefore to limit the liability
of the City it is recommended to use the same vendor with an estimated repair cost of
$23,560.
NOW THEREFORE, BE IT HEREBY RESOLVED BY THE CITY COUNCIL OF PRIOR LAKE, MINNESOTA
as follows:
1. The recitals set forth above are incorporated herein.
2. The City Council authorizes the expenditure of an estimated $23,560 for maintenance and repair of
Well#4.
3. The funding for the well maintenance and repair will be from account 601-49400.00-54010.01.
PASSED AND ADOPTED THIS 26th DAY OF JANUARY, 2015
VOTE Hedberg Keeney McGuire Morton Thompson
Aye ❑ ❑ ❑ ❑ ❑
Nay ❑ ❑ ❑ ❑ ❑
Abstain ❑ ❑ ❑ ❑ ❑
Absent ❑ ❑ ❑ ❑ ❑
Frank Boyles, City Manager