Title
Proposed Change Order No. 2
Contract No. 2100239/SCN-0000417
WRRF Structural Evaluation and Repairs
CIP #216011/BCE Score: 64.40
Body
Agenda of: January 28, 2026
Item No.: 2025-429
Amount: Original Contract Amount: $12,639,000.00
Change Order No. 1 750,000.00
Proposed Change Order No. 2 3,100,000.00
Total Contract Amount $16,489,000.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: December 29, 2025
RE: Proposed Change Order No. 2
Contract No. 2100239/SCN-0000417
WWRF Structural Evaluation and Repairs
Vendor: Kokosing Industrial, Inc.
Status: Amendment/Change Order
MOTION
Upon recommendation of Navid Mehram, Chief Operating Officer - Wastewater Operating Services, the Board of Directors (Board) of the Great Lakes Water Authority (GLWA), authorizes the Chief Executive Officer (CEO) to enter into Contract No. 2100239/SCN-0000417, Proposed Change Order No. 2, “WRRF Structural Evaluation and Repairs” with Kokosing Industrial, Inc., for an increased cost of $3,100,000.00 for a total cost not to exceed $16,489,000.00 and an increased duration of 545 days for total duration of 2,280 days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
GLWA awarded Contract No. 2100239, “Design-Build Contract for WRRF Structural Evaluation and Repairs”, to Kokosing Industrial, Inc. The purpose of this design-build contract is to identify and implement structural repairs required at specified areas within the Water Resource Recovery Facility (WRRF). The Contractor is required to perform a full structural assessment of these areas, identify all structural defects, and rank the required repairs.
The project has successfully prioritized high-importance repairs, enhancing long-term structural reliability. However, two unforeseen issues have emerged: (1) Contract work on Aeration Tanks Nos. 3 and 4 revealed that the roof decks were in poor condition. A structural assessment found that many precast concrete planks exhibit failure characteristics; (2) After concrete was observed falling from a beam in the WRRF employee parking structure, the Contractor assessed the entire parking structure. Their evaluation identified multiple structural and safety issues, some requiring immediate repairs to maintain safe operation and prevent further deterioration.
The project team currently anticipates that increasing the Provisionary Allowance by $3,100,000.00 and extending the contract by 545 calendar days will enable the contractor to complete the repairs to the parking structure and Aeration Tanks Nos. 3 and 4, along with any additional repair needs identified as work continues, and the project is closed out.
JUSTIFICATION
The project team has determined that increasing the total contract budget and extending the contract time is necessary to achieve the project's goal of extending the structural lifespan and addressing structural safety concerns for selected facilities at WRRF.
The final cost for the above-described items will be negotiated in accordance with the contract documents. All unused remaining funds in the Provisionary Allowance will be credited back to GLWA through a Final Change Order.
PROJECT MANAGEMENT STATUS
Original Contract Time 1,735 days (10/17/2022 - 07/18/2027)
Change Order No. 1 0 days
Proposed Change Order No. 2 545 days (07/19/2027 - 01/13/2029)
New Contract Time 2,280 days (10/17/2022 - 01/13/2029)
PROJECT ESTIMATE
Original Contract Price $12,639,000.00
Change Order No. 1 750,000.00
Proposed Change Order No. 2 3,100,000.00
New Contract Total $16,489,000.00
FINANCIAL PLAN IMPACT
Summary: Sufficient funds are provided in the financial plan for this project.
Funding Source: 5421 - Wastewater Construction Fund
Cost Center: 880000 - Capital Improvement Program
Spend Category: Construction
Project Worktag: PRJ-216011
Estimated Cost by Year and Related Estimating Variance: See table below.
Original Contract Price $12,639,000.00
Change Order No. 1 750,000.000
Proposed Change Order No. 2 3,100,000.00
New Contract Total $16,489,000.00
Amended Financial Plan Estimate $13,389,000.00
Estimating Variance: ($3,100,000.00)
This proposed change order to the vendor creates a negative estimating variance of $3,100,000.00. This variance will be funded from capital reserves.
COMMITTEE REVIEW
This item was presented to the Operations and Resources Committee at its meeting on January 14, 2026.
SHARED SERVICES IMPACT
This item does not impact the shared services agreement between GLWA and DWSD.