Title
Proposed Change Order No. 1
Contract No. 2100239/SCN-0000417
WRRF Facilities Structural Evaluation and Repairs
CIP #216011/BCE Score: 64.40
Body
Agenda of: May 28, 2025
Item No.: 2025-146
Amount: Original Contract $12,639,000.00
Proposed Change Order No. 1 750,000.00
Total Contract Amount $13,389,000.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: April 28, 2025
RE: Contract No. 2100239/SCN-0000417
WRRF Facilities 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. 1, “WRRF Facilities Structural Evaluation and Repairs” with Kokosing Industrial, Inc., with an increased cost of $750,000.00 for a total cost not to exceed $13,389,000.00 with no increase in duration for a total duration of 1,735 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 in specified areas within the Water Resource Recovery Facility (WRRF). The first phase of the project required the vendor to perform a full structural assessment of these areas, identify all structural defects, and prioritize these repairs based on the available budget in the contract, utilizing the contract unit prices. The project has successfully prioritized high-importance repairs, enhancing long-term structural reliability. However, three (3) unforeseen issues have emerged: 1. actual repair quantities exceeding initial projections, 2. failing architectural stonework at the Administration Building due to water infiltration, creating safety hazards and higher-than-expected repair costs, and 3. a significant concrete wall failure at the Aeration Basin Nos. 3 and 4 Pipe Gallery, requiring further engineering investigation to determine repair solutions.
The project team currently anticipates that a $750,000.00 increase in the Provisionary Allowance will allow the Contractor to complete known repairs as described above, as well as additional repair quantities that may be uncovered as the work progresses. The contractor’s schedule indicates that all repairs will be completed within the existing contract duration.
JUSTIFICATION
The project team has determined that an increase to the existing contract amount is necessary to achieve the project's goal of extending the structural lifespan and addressing high priority structural repairs for selected facilities at the WRRF. The final cost for the above-described items will be negotiated in accordance with the contract documents. All unused amounts remaining 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 - 7/18/2027)
Proposed Change Order No. 1 0 days
New Contract Time 1,735 days (10/17/2022 - 7/18/2027)
PROJECT ESTIMATE
Original Contract Price $12,639,000.00
Proposed Change Order No. 1 750,000.00
New Contract Total $13,389,000.00
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
Proposed Change Order No. 1 750,000.000
New Contract Total $13,389,000.00
Amended Financial Plan Estimate $16,000,000.00
Balance reserved for construction: $11,453,018.00
COMMITTEE REVIEW
This item was presented to the Operations and Resources Committee at its meeting on May 14, 2025. The Operations and Resources Committee unanimously recommended that the GLWA Board adopt the resolution as presented.
SHARED SERVICES IMPACT
This item does not impact the shared services agreement between GLWA and DWSD.