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Date: February 18, 2020 Item No.
APPROVAL OF WELLS NO. 8 AND NO. 11 REHABILITATION PROJECT
CHANGE ORDER NO. 1
Proposed Action
Staff recommends adoption of the following motion: Move to approve Well 8 and 11
rehabilitation project Change Order No. 1 increasing the contract sum in the amount of
$26,530.00.
Overview
Well rehabilitation is part of an ongoing preventive maintenance program to ensure the optimal
functioning of production wells. Both Wells No. 8 and No. 11 are submersible wells with both
the pump and motor under water. These types of wells are typically scheduled for rehabilitation
every 8 to 10 years.
This change order involves the installation of approximately 300 feet of new submersible
electrical cable to connect to the motors in both wells. Replacement of the cable is recommended
anytime the motor is refurbished or replaced. In this instance, one of the electrical cables was
defective and reducing motor efficiency. Additionally, the change order recommends coating
100 feet of down hole piping to prevent corrosion. These pipe segments were not coated at the
last rehabilitation.
The initial contract was for $149,750.00. Change Order No. 1 adds $26,530.00 in additional
work. Since there is no need to remove sand from the wells, estimated total cost for the well
rehabilitation project, including Change Order No. 1, is $94,076.00, below the overall contract
cost, as well as the budgeted amount. Staff recommends approval of Change Order No. 1
Primary Issues to Consider
• Is the additional work necessary? Yes. The electrical cabling that was removed from Well 8
had resistance from moisture in the cable and was affecting the efficiency of the motor. It
cannot be reinstalled. At Well 11, replacement of the cabling is precautionary to ensure the
continued efficiency of the well. Pipe coating reduces corrosion which can also reduce the
efficiency of the well.
Supporting Information
• Change Order No. 1 is attached.
Financial Impact: $26,530.00 Budgeted: $180,000.00 Source: 7610.6295
Related Documents (CIP, ERP, etc.): 2019 adopted budget
Envision Lakeville Community Values: Good Value for Public Services
Report Completed by: Neil Normandin, Public Works and Facilities Coordinator
CHANGE ORDER NO. 1
Owner: City of Lakeville Project No.: 19-18
Project: Well 8 and 11 Rehabilitation
Contractor: Bergerson Caswell, Inc.
Contract Date: November 18, 2019 Original Contract Amount: $149,750.00
To: Bergerson Caswell, Inc. (Contractor), you are hereby directed to make the changes noted below
in the subject Contract.
Owner: City of Lakeville By:
Douglas P. Anderson, Mayor
Date: February 18, 2020 By:
Charlene Friedges, City Clerk
Nature of the Changes: Installation of approximately 300 feet of 250 MCM, 3 conductor with ground
submersible wire at both Wells 8 and 11. Epoxy coating for 100 feet of down hole piping at Well 8.
Changes based on well rehabilitation reports submitted by the contractor.
These changes result in the following adjustment of Contract Price and Contract Time:
Contract Price Prior to this Change Order $ 149,750.00
Net Increase/Decrease Resulting from this Change Order 26,530.00
Current Contract Price, Including this Change Order $ 176,280.00
The above changes are approved: CITY OF LAKEVILLE
By:
Paul R. Oehme
Public Works Director
Date: February 18, 2020
The above changes are accepted:
By:
Date: