TRANSMITTAL LETTER FOR BOARD MEETING OF NOVEMBER 20, 2025
COMMITTEE ON PROCUREMENT
Mr. John P. Murray, Acting Executive Director
Title
Authority to increase Contract 21-091-3P Phosphorus Removal Modifications to Battery D, O’Brien Water Reclamation Plant, to IHC Construction Companies, LLC in an amount of $17,715.74, from an amount of $15,511,121.96, to an amount not to exceed $15,528,837.70, Account 401-50000-645650, Purchase Order 4000099
Body
Dear Sir:
On June 15, 2023, the Board of Commissioners authorized the Director of Procurement and Materials Management to award Contract 21-091-3P Phosphorus Removal Modifications to Battery D, O’Brien Water Reclamation Plant, to IHC Construction Companies, LLC, in an amount not to exceed $14,850,000.00, plus a five (5) percent allowance for change orders in an amount of $742,500.00, for a total amount not to exceed $15,592,500.00. The scheduled contract completion date is June 9, 2026
As of November 7, 2025, the attached list of change orders has been approved.
Original Contract Amount $14,850,000.00
Date of Board Approval 6/15/2023
Cumulative Change Order (11/7/2025) $661,121.96
% Change of Original Contract Value 4.45%
Current Contract Value $15,511,121.96
Requested Increase $17,715.74
New Contract Value $15,528,837.70
% Change of Current Contract Value 0.11%
Total % Change of Original Contract Value 4.57%
Revisions to the existing air supply system feeding the diffusers in the first non-aerated zone of Aeration Tanks 2 - 8 are necessary to ensure there is no unintended aeration in the non-aerated zone. After the completion of the Aeration Tank 2 shutdown, Maintenance and Operations personnel noticed that the existing valve on the air supply drop piping for the diffusers in the first non-aerated zone would not close completely. Therefore, it is necessary to remove these valves and air drops and cap the air supply line. The contractor submitted a cost proposal (CO-47) to provide labor hours, additional materials, and the equipment necessary to modify the air supply system for an extra in the amount of $19,278.27 and a credit in the amount of $0.00, for a net extra in the amount of $19,278.27. The engineer reviewed the contractor’s proposal, found it to be unacceptable, and countered with the engineer’s estimate of $17,715.74, which the contractor has accepted. The Engineer stated via correspondence 47, that the Engineering Department would recommend its approval.
This change order is in compliance with the Illinois Criminal Code since the change is germane to the contract as signed.
It is hereby recommended that the Board of Commissioners authorize the Director of Procurement and Materials Management to execute a change order to increase Contract 21-091-3P in an amount not to exceed $17,715.74 (0.11% of the current contract value), from an amount of $15,511,121.96, to an amount not to exceed $15,528,837.70.
Funds are available in Account 401-50000-645650.
Requested, Catherine A. O’Connor, Director of Engineering, CS:GAK
Recommended, Darlene A. LoCascio, Director of Procurement and Materials Management
Respectfully Submitted, Precious Brady-Davis, Chairperson Committee on Procurement
Disposition of this agenda item will be documented in the official Regular Board Meeting Minutes of the Board of Commissioners for November 20, 2025
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