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TO: Mayor Richard C. Irvin
FROM: David E. Schumacher, P.E.; Superintendent of Water Production
DATE: May 13, 2021
SUBJECT:
A Resolution Authorizing Well Maintenance Services for Well No. 28 for the Water Production Division in an amount not to exceed $235,000.00.
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. 28 to full operational and functional status.
BACKGROUND:
Well No. 28, located at 1960 E. Indian Trail, is a deep well with the pump and motor setting at 1,016 feet below the surface and is normally capable of supplying approximately 2,000,000 gallons of water per day. The well's pumping equipment experienced a failure on April 15, 2021. Preliminary testing from the surface by both Water Production Division (WPD) staff and Layne indicated an apparent mechanical 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 a not-to-exceed purchase order of $25,000.00, Layne has completed the removal of the pumping equipment and reports a thrust bearing has likely malfunctioned within the motor making it inoperable.
Normally under this circumstance the estimated turnaround time for shipping the motor to and from the Flowserve-Byron Jackson (Flowserve) repair facility in Pennsylvania and completion of repairs to the motor is twelve weeks. The WPD would not expect to have Well No. 28 available until late summer or later. However, Layne maintains a limited stock of these motors in Aurora and has an equivalent 400 horsepower motor available for immediate purchase. The damaged motor will be repaired by Flowserve and returned to Layne as part of the "factory exchange" program. Ac...
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