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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 well. In addition, a video survey of the borehole revealed that the steel well liner which supports a fragile section of the limestone formation near to the depth of the pump has slipped. Therefore, it is recommended that the pump be raised above the level of the liner to protect the pump from potential damage should the liner slip again in the future. The WPD now seeks to finalize all recommended repairs and routine maintenance items to the pumping equipment in order to return the well to active service.
DISCUSSION:
The total estimated cost of all projected service work provided by Layne is $375,521.00, of which $316,021.00 is estimated for Well No. 20 and $59,500.00 for Well No. 29. A detailed breakdown of the estimated costs for each well has been provided by Layne and is attached in the appropriate proposal letters.
Layne is the sole regional factory authorized source for FBJ pumps, motors, and repair services. In addition, 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 the 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.
Funds are available in the 2014 City Budget in Account No. 510-4058-511-38-31.
IMPACT STATEMENT:
None.
RECOMMENDATIONS:
That a resolution authorizing repairs to pumping equipment from Well Nos. 20 and 29 by Layne Christensen Company per the existing PSA in an amount not to exceed $375,521.00 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 Peters, Chairman
Alderman Garza
Alderman Bugg
Alderman Saville, Alternate
CITY OF AURORA, ILLINOIS
RESOLUTION NO. _________
DATE OF PASSAGE ________________
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A Resolution Authorizing Repairs to Pumping Equipment from Well Nos. 20 and 29 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 Nos. 20 and 29 require repairs to various pumping equipment components to return the wells to proper active service; and
WHEREAS, Layne Christensen Company, Aurora, IL, is the sole local authorized representative for service and repairs to Flowserve-Byron Jackson well pump equipment; 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 2014 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 repair work to Well Nos. 20 and 29 by Layne Christensen Company, in a total amount not to exceed $375,521.00.
PASSED AND APPROVED on ______________.
AYES ____ NAYS ____ NOT VOTING ____ ABSENT ____
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Alderman Bohman, Ward 1 Alderman Garza, Ward 2
____________________________ __________________________
Alderman Mesiacos, Ward 3 Alderman Donnell, Ward 4
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Alderman Peters, Ward 5 Alderman Saville, Ward 6
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Alderman Hart-Burns, Ward 7 Alderman Mervine, Ward 8
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Alderman Bugg, Ward 9 Alderman Johnson, Ward 10
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Alderman Irvin, At Large Alderman O'Connor, At Large
ATTEST:
____________________________ __________________________
City Clerk Mayor