TRANSMITTAL LETTER FOR BOARD MEETING OF AUGUST 14, 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 $117,170,72, from an amount of $15,379,232.30, to an amount not to exceed $15,496,403.02, 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 May 17, 2026
As of July 18, 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 (7/18/2025) $529,232.30
% Change of Original Contract Value 3.56%
Current Contract Value $15,379,232.30
Requested Increase $117,170.72
New Contract Value $15,496,403.02
% Change of Current Contract Value 0.76%
Total % Change of Original Contract Value 4.35%
Revisions to the return activated sludge (RAS) Pump Station Distributed Control System (DCS) are necessary to simplify telemetry between the DCS and RAS Pump variable frequency drives (VFDs). The contract originally required the RAS Pump VFDs to communicate with the DCS through a significant amount of hardwired analog and digital I/O points. By revising the communication protocol to MODBUS, the amount of conduit and cable required between the VFDs and the DCS I/O cabinets have been reduced; however, additional DCS work is required for this modification. The contractor submitted a cost proposal (CO-40) to provide engineering hours, additional hardware, and software necessary to modify the DCS control of the RAS Pumps for an extra in the amount of $117,170.72 and a credit in the amount of $0.00, for a net extra in the amount of $117,170.72. The engineer reviewed the proposal, found it to be reasonable, and stated via correspondence CO40, 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.
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 $117,170.72 (0.76% of the current contract value), from an amount of $15,379,232.30, to an amount not to exceed $15,496,403.02.
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 August 14, 2025
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