TRANSMITTAL LETTER FOR BOARD MEETING OF MARCH 19, 2026
COMMITTEE ON PROCUREMENT
Mr. John P. Murray, Executive Director
Title
Authority to increase Contract 20-RFP-28R Biogas Combined Heat and Power System, Egan WRP, to Baxter & Woodman/Boller Construction, LLC in an amount of $127,086.21, from an amount of $14,691,666.01, to an amount not to exceed $14,818,752.22, Accounts 101-50000-612490, 201-50000-612450, 201-50000-645650, Purchase Orders 3130589, 3130593, and 4000112
Body
Dear Sir:
On January 4, 2024, the Board of Commissioners authorized the Director of Procurement and Materials Management to award Contract 20-RFP-28R, Biogas Combined Heat and Power System, Egan WRP, to Baxter & Woodman/Boller Construction, LLC in an amount not to exceed $14,591,109.00. The scheduled contract completion date is December 21, 2026.
As of March 6, 2026, the attached list of change orders has been approved.
Original Contract Amount $14,591,109.00
Date of Board Approval 1/4/2024
Cumulative Change Orders (3/6/2026) $100,557.01
% Change of Original Contract Value 0.69%
Current Contract Value $14,691,666.01
Requested Increase $127,086.21
New Contract Value $14,818,752.22
% Change of Current Contract Value 0.87%
Total % Change of Original Contract Value 1.56%
The preliminary design documents included with the bid set for this design-build project specified the use of Schedule 10S stainless steel pipe for above-ground and interior digester gas piping applications. There was not a specification included for underground, exterior digester gas piping. During the design and submittal review process, the District recommended the use of Schedule 40S stainless steel pipe for underground, exterior piping, in lieu of Schedule 10S, based on prior experience with underground applications at District facilities, as well as its superior corrosion resistance and puncture resistance over the expected service life of the project. The District also requested the application of a corrosion-protection covering system for the pipe.
The scope of work of this change order includes a credit for installation of Schedule 10S stainless steel piping and an extra for installation of Schedule 40S stainless steel piping and corrosion protective covering for all exterior, underground piping. The additional scope of work associated with these modifications includes additional material costs and additional labor to install the heavier pipe and supplemental corrosion protection covering system. The ontractor submitted a cost proposal (CO-09) for an extra in the amount of $174,658.69 and a credit in the amount of $47,572.48, for a net extra in the amount of $127,086.21. The engineer reviewed the proposal, found it to be reasonable, and stated via correspondence CO09 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 20-RFP-28R in an amount of $127,086.21 (0.87% of the current contract value), from an amount of $14,691,666.01, to an amount not to exceed $14,818,752.22.
Funds are available in Account 201-50000-645650.
Requested, Catherine A. O’Connor, Director of Engineering, KMF:LS
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 March 19, 2026
Attachment