Title
Proposed Change Order No. 3
Contract No. 2100239/SCN-0000417
WRRF Structural Evaluation and Repairs
CIP #216011/BCE Score: 64.40
Body
Agenda of: November 19, 2026
Item No.: 2026-446
Amount: Original Contract Amount: $12,639,000.00
Change Order No. 1 750,000.00
Change Order No. 2 3,100,000.00
Proposed Change Order No. 3 750,000.00
Total Contract Amount: $17,239,000.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: October 23, 2026
Proposed Change Order No. 3
RE: Contract No. 2100239/SCN-0000417
WRRF 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. 3, “WRRF Structural Evaluation and Repairs” with Kokosing Industrial, Inc. for an increased cost of $750,000.00 for a total cost not to exceed $17,239,000.00 and no increase in duration for a 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, “WRRF Structural Improvements,” to Kokosing Industrial, Inc. on August 26, 2020, with a start date of October 17, 2022. This design-build (DB) contract addresses structural repairs across eight (8) areas of the Water Resource Recovery Facility using competitively bid unit prices. During the initial phase, DB Engineer, Osborn Engineering, conducted a structural assessment to identify and prioritize needed repairs based on the available contract budget and established unit pricing. This assessment forms the basis for the repair plan that has been performed thus far. As work has progressed, two (2) major issues have emerged that were not identifiable until repairs began or were outside the original contract scope: 1) at Aeration Basin Nos. 3 and 4, the actual quantity of required repairs has increased due to additional deteriorated tank decking planks and coating failure over the planks. This has resulted in higher costs than originally anticipated. 2) A significant water infiltration and deteriorated concrete in the Primary Clarifier Pipe Gallery at Tank Nos. 2 and 3 was identified by GLWA Maintenance (not included in the original eight 8 areas of the project). These conditions pose structural and safety concerns and risk operational disruptions due to possible water damage to existing fiber optic cables.
Due to these reasons highlighted above in 1 and 2, GLWA requested that the contractor perform a field investigation, develop repair details, and carry out necessary repairs under this contract to mitigate these risks. The project team currently anticipates that a $750,000.00 increase to the Provisionary Allowance will enable the contractor to complete the repairs described above, as well as any additional repair needs that may be identified as work continues.
JUSTIFICATION
The project team has determined that a $750,000.00 increase to the total contract budget is necessary to achieve the project’s objectives of extending structural service life and addressing safety concerns for GLWA team members. The final cost for this additional work will be negotiated in accordance with the contract documents and will leverage any relevant established unit costs as well. Any unused funds will remain with GLWA and will be reconciled 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
Change Order No. 2 545 days (07/19/2027 - 01/13/2029)
Proposed Change Order No. 3 0 days
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
Change Order No. 2 3,100,000.00
Proposed Change Order No. 3 750,000.00
New Contract Total $ 17,239,000.00
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. 1 750,000.00
Change Order No. 2 3,100,000.00
Proposed Change Order No. 3 750,000.00
New Contract Total $17,239,000.00
Amended Financial Plan Estimate $13,389,000.00
Estimating Variance: ($3,850,000.00)
This proposed change order to the vendor creates a negative estimating variance of $3,850,000.00. This variance will be funded from capital reserves.
COMMITTEE REVIEW
This item was presented to the Operations and Resources Committee at its meeting on November 12, 2026.
SHARED SERVICES IMPACT
This item does not impact the shared services agreement between GLWA and DWSD.