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TO: Mayor Richard C. Irvin
FROM: Robert Leible, Superintendent of Water Production
DATE: March 10, 2025
SUBJECT:
A resolution authorizing well maintenance services for Well No. 29 for the Water Production Division in an amount not to exceed $358,000.00
PURPOSE:
To obtain City Council authorization for Layne Christensen Company (Layne), 721 W. Illinois Avenue, Aurora, IL, to perform all necessary services as described in Layne's proposal letter (attached) to return Well No. 29 to full operational and functional status.
BACKGROUND:
Well No. 29, located at 1374 Deerpath Road, is a deep well with the pump and motor setting 858 feet below the surface and is normally capable of supplying approximately 1,700,000 gallons of water per day. The well's pumping equipment experienced a failure on January 7, 2025. Preliminary testing from the surface by both Water Production Division (WPD) staff and Layne indicated an apparent electrical problem with the Flowserve-Byron Jackson 2400-volt, 400 horsepower, submersible well pump motor. In order to determine the exact cause of the motor failure, the well pump/motor assembly must be removed from the well for inspection and further testing. Under an initial purchase order of $42,750.00, Layne has completed the removal of the pumping equipment and diagnostic testing. The testing of the electrical system was acceptable; however, an actual mechanical failure of a thrust bearing was determined to be the root cause of the equipment failure.
DISCUSSION:
The total estimated cost of all proposed and recently completed work by Layne to restore Well No. 29 to operational status is $357,317.00. A detailed breakdown of the estimated costs is presented in Layne's proposal letter. The major project items include replacement of the motor, rehabilitation of the pump, repairs/replacement of the column piping, and well redevelopment. With the removal of the equipment, it is advantageous and convenient to perform redevelopment work ...
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