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TO: Mayor Richard C. Irvin
FROM: David E. Schumacher, P.E.; Superintendent of Water Production
DATE: October 14, 2021
SUBJECT:
A resolution authorizing the rehabilitation of river intake pump #5 for the Water Production Division in an amount not to exceed $60,000.00.
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 completely rehabilitate the subject pump and return it to full operational and functional status.
BACKGROUND:
The City of Aurora utilizes the Fox River as a significant source of its potable water supply. Fox River water is conveyed to the City of Aurora Water Treatment Plant by the river intake pump station. The pump station consists of six pumps with capacities ranging from 1,700 to 4,000 gallons per minute.
Periodic repairs and maintenance are required of any type of pumping equipment, but the extended and continuous pumping of river water is especially hard on these pumps. As such, these units experience wear over their many years of operation. Recently, river intake pump #5 exhibited symptoms of mechanical failure, including abnormal vibration and loss of pumping capacity (flow). Layne was requested to perform an on-site inspection with city staff and concurred that further inspection and analysis would be required to determine the actual condition of the pump. The resulting report of Layne's inspection and repair recommendations is attached. River intake pump #5 was last pulled for rehabilitation in 2009.
DISCUSSION:
The total estimated cost of labor and materials for this repair project is $59,145.00. 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 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 city budget account 510-4058-511-38-01. Due to the timing of this repair and the anticipated lead time of 10 - 12 weeks for the major equipment component (bowl assembly), project completion will be pushed into 2022. Therefore, project costs will be allocated from the both the fiscal 2021 and 2022 budgets.
IMPACT STATEMENT:
Without repairs, a loss of 5,000,000 gallons per day of available pumping capacity of source water from the Fox River.
RECOMMENDATIONS:
That a resolution authorizing the rehabilitation of river intake pump #5 by Layne Christensen Company per the existing PSA in an amount not to exceed $60,000.00 be approved by the Mayor and City Council. It is further recommended that this matter be submitted to the Finance Committee for review and recommendation.
cc: Finance Committee
CITY OF AURORA, ILLINOIS
RESOLUTION NO. _________
DATE OF PASSAGE ________________
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A Resolution Authorizing the Rehabilitation of River Intake Pump #5 for the Water Production Division in an amount not to exceed $60,000.00 by Layne Christensen Company, Aurora, IL.
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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, The Water Production Division seeks repairs and/or equipment replacement to return river intake pump #5 to normal operational status; and
WHEREAS, Layne Christensen Company, Aurora, IL, is the sole local factory authorized representative for service and repairs to Flowserve-Byron Jackson pump equipment utilized by the Water Production Division at the river intake; 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, pumping equipment repair, and field services as per City of Aurora Resolution No. R20-083; and
WHEREAS, budgetary authority has been granted, and funding is available in the city budget account No. 510-4058-511-38-01 and allocated from the fiscal 2021 and 2022 budgets;
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 a purchase order to Layne Christensen Company for the rehabilitation of river intake pump #5, in an amount not to exceed $60,000.00.