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TO: Mayor Richard C. Irvin
FROM: David E. Schumacher, P.E.; Superintendent of Water Production
DATE: November 27, 2017
SUBJECT:
A Resolution Authorizing Well Maintenance Services for Well No. 21 for the Water Production Division.
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 this memorandum to return Well No. 21 to full operational and functional status.
BACKGROUND:
Well No. 21, located at 3000 W. Galena Blvd. is a deep well with the pump and motor setting at 991 feet below the surface and is normally capable of supplying approximately 1,100,000 gallons of water per day. The well's pumping equipment experienced a failure on October 7, 2017. Preliminary testing by Water Production Division (WPD) staff and Layne indicated an apparent electrical failure of the Flowserve-Byron Jackson 2400-volt, 350 horsepower, submersible well pump motor. In order to confirm the exact failure, the well pump/motor assembly must be removed from the well for inspection and further testing.
Subsequently, under a not-to-exceed purchase order of $25,000.00, Layne has recently completed the removal of the pumping equipment and has confirmed a "dead short" of the motor windings, rendering the motor inoperable. A replacement motor, also referred to as a factory exchange motor, is proposed to be provided by Flowserve at a cost of $124,375.00.
DISCUSSION:
The total estimated cost of all proposed and recently completed work by Layne to restore Well No. 21 to operational status is $255,000.00. The estimated cost items that have been identified and will be required based on past experience with deep well pump/motor repairs are identified as follows:
Removal of all pump components and field inspection of motor: $24,700 (completed)
Factory exchange motor: $124,375
Bowl assembly - rebuild: $13,000
Sand bailing: $10,800
Pump reinstallation and testing: $40,000
Miscellaneous items: $14,411
Contingency: $27,714
A detailed breakdown of the estimated costs has been provided by Layne and is attached in a separate proposal letter.
The city entered into a Professional Services Agreement (PSA) with Layne in 2012 under Resolution No. R12-290, which provides a 5% discount on all labor and field services, and a 10% discount on specialized services performed by Layne. Layne will perform all work on a time and material basis and will only be compensated for the actual work performed per the terms and conditions of the PSA. In addition, Layne is the sole regional factory authorized source for repair services of Flowserve-Byron Jackson pumps and motors utilized by the Water Production Division.
Funds are available in the 2017 City Budget and have been requested in the 2018 City Budget in Account No. 510-4058-511-38-31.
IMPACT STATEMENT:
Inability to pump approximately 1,100,000 gallons per day of raw well water from Well No. 21 if the maintenance work is not completed.
RECOMMENDATIONS:
That a resolution authorizing well maintenance services for Well No. 21 by Layne Christensen per the existing PSA in an amount not to exceed $255,000.00 be approved by the Mayor and City Council. It is further recommended that this matter be submitted to the Buildings, Grounds, and Infrastructure Committee for review and recommendation.
cc: Alderman Garza, Chairman
Alderman Donnell
Alderman Bohman
Alderman Hart-Burns, Alternate
CITY OF AURORA, ILLINOIS
RESOLUTION NO. _________
DATE OF PASSAGE ________________
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A Resolution Authorizing Well Maintenance Services for Well No. 21 for the Water Production Division.
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WHEREAS, the City of Aurora has a population of more than 25,000 persons and is, therefore, a home rule unit under subsection (a) of Section 6 of Article VII of the Illinois Constitution of 1970; and
WHEREAS, subject to said Section, a home rule unit may exercise any power and perform any function pertaining to its government and affairs for the protection of the public health, safety, morals, and welfare; and
WHEREAS, Well No. 21 requires equipment replacement and repairs in order to return the well to normal operational status; and
WHEREAS, Layne Christensen Company, Aurora, IL, is the sole local authorized representative for service and repairs to Flowserve-Byron Jackson well pump equipment utilized by the Water Production Division; and
WHEREAS, a current Professional Services Agreement is in effect between the City of Aurora and Layne Christensen Company for professional services to include but not limited to water well maintenance, well equipment repair, and field services as per City of Aurora Resolution No. R12-290; and
WHEREAS, budgetary authority is granted and funds are available for this work in the 2017 City Budget and requested in the 2018 City Budget in Account No. 510-4058-511-38-31;
NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Aurora, Illinois, as follows: that its Purchasing Director be and is hereby authorized to issue purchase orders for well maintenance services for Well No. 21 by Layne Christensen Company, in a total amount not to exceed $255,000.00.