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TO: Mayor Richard C. Irvin
FROM: David E. Schumacher, P.E.; Superintendent of Water Production
DATE: March 11, 2021
SUBJECT:
A Resolution Authorizing Well Maintenance Services for Well No. 23 for the Water Production Division in an amount not to exceed $240,000.
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. 23 to full operational and functional status.
BACKGROUND:
Well No. 23, located at 3290 Jericho Road, is a deep well with the pump and motor setting at 910 feet below the surface and is normally capable of supplying approximately 1,500,000 gallons of water per day. The well's pumping equipment experienced a failure on December 23, 2020. Preliminary testing by both Water Production Division (WPD) staff and Layne indicated an apparent electrical problem with the Flowserve-Byron Jackson 2400-volt, 350 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 confirmed that an electrical grounding occurred within the motor making it inoperable. The normal time for a complete electrical repair of this type of motor can be up to twelve weeks, thus the WPD will work with Layne to have Well No. 23 operational as soon as possible.
DISCUSSION:
The total estimated cost of all proposed and recently completed work by Layne to restore Well No. 23 to operational status is $233,416.00. A detailed breakdown of the estimated costs is presented in Layne's proposal letter.
The city entered into a Professional Services Agreement (PSA) with Layne in 2020 under Resolution No. R20-083, which provides a 5% discount on all labor and field service...
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