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TO: Mayor Thomas J. Weisner
FROM: David E. Schumacher, P.E.; Superintendent of Water Production
DATE: January 24, 2014
SUBJECT:
A Resolution Authorizing Repairs to Pumping Equipment from Well Nos. 20 and 29 for the Water Production Division
PURPOSE:
To obtain City Council authorization for Layne Christensen Company (Layne), 721 W. Illinois Ave, Aurora, IL, to perform all necessary field services, inspections/evaluations, and repairs to restore the subject wells to normal operation.
BACKGROUND:
Well No. 20, located at 1910 Bilter Road, is a deep well with the pump and motor setting at 894 feet below the surface and is normally capable of supplying approximately 1,700,000 gallons of water per day. Well No. 20 has proven to be exceptionally reliable having been in service without fail since 1991. However, recent testing by both Water Production Division (WPD) staff and Layne indicates an apparent electrical problem with the Flowserve-Byron Jackson (FBJ) 2400-volt, 350 horsepower, submersible well pump motor. Because of this problem, failure of the motor could occur at any time. To preempt a failure during a high water demand period, the pump and motor assembly should be pulled from the well this spring for inspection and completion of all required repairs as the WPD seeks to have this well returned to active service before summer.
Well No. 29, located at 1374 Deerpath Road, is a deep well with the pump and motor setting at 1000 feet below the surface and is normally capable of supplying approximately 1,800,000 gallons of water per day. The initial failure of this well occurred on June 6, 2013. Removal and inspection of the pumping equipment was authorized by Resolution No. R13-337 on December 10, 2013 for $34,300.00 and has been completed. The equipment failure was initially believed to be an electrical failure of the FBJ motor; however the inspection revealed the only electrical problem to be a grounded motor cable deep within the ...
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