Title
Proposed Change Order No. 2
Contract No. 2103380/SCN-0000295
Water Works Park HVAC Improvements
CIP #115005 / BCE Score: 93.00
Body
Agenda of: October 22, 2025
Item No.: 2025-284
Amount: Original Contract Price $14,953,000.00
Change Order No. 1 782,490.84
Proposed Change Order No. 2 0.00
New Contract Total $15,735,490.84
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: September 23, 2025
RE: Proposed Change Order No. 2
Contract No. 2103380/SCN-0000295
Water Works Park HVAC Improvements
Vendor: Commercial Contracting Corporation
Status: Amendment/Change Order
MOTION
Upon recommendation of Cheryl Porter, Chief Operating Officer - Water and Field Services, the Board of Directors (Board) of the Great Lakes Water Authority (GLWA), authorizes the Chief Executive Officer (CEO) to enter into Contract No. 2103380/SCN-0000295, Proposed Change Order No. 2, “Water Works Park HVAC Improvements” with Commercial Contracting Corporation, with no increase in cost for a total cost not to exceed $15,735,490.84 and an increased duration of 154 days for a total duration of 1,278 days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
Contract No. 2103380 is a construction services contract that is related to improving the heating, ventilating and air-conditioning (HVAC) system in chemical storage and process areas of the Water Works Park Water Treatment Plant (WWP). During the condition assessment conducted at WWP under a separate contract (Contract No. CS-147), deficiencies with the existing HVAC system in the aforementioned areas were identified. These deficiencies include, but are not limited to, poor mechanical venting, poor air distribution, limited instrumentation and control, limited warning alarms, and limited integration with Ovation Supervisory Control and Data Acquisition System. The purpose of this project is to improve the existing HVAC system so that it meets or exceeds current codes, standards and best practices for management of indoor air quality. The main rooms where HVAC improvements will be made include the following: a) fluoride storage room, b) phosphoric acid storage room, c) sodium bisulfite storage room, d) ozone generator room, e) ozone destruct room, g) aluminum sulfate bulk storage room, h) aluminum sulfate day tank room, i) pilot plant rooms, j) filter operating galleries, k) flocculation and sedimentation rooms, and l) other smaller miscellaneous rooms.
JUSTIFICATION
Change Order No. 1, approved by the Board in June of 2025, added money to the contract to cover costs associated with purchasing and installing equipment for the fire alarm system in the plant’s flocculation/sedimentation basins. During negotiations for Change Order No. 1, the lead time for equipment fell in line with contract deliverable dates. After Change Order No. 1 was fully executed, the contractor was informed by the equipment supplier that they were no longer able to meet their promised lead times. As such, the equipment needed will not arrive onsite until after the contract end date. Proposed Change Order No. 2 is a time only extension to the contract to allow the contractor to install the tardy equipment delivery within contract terms.
PROJECT MANAGEMENT STATUS
Original Contract Time 1,124 days (08/01/2022 - 08/29/2025)
Change Order No. 1 0 days
Proposed Change Order No. 2 154 days (08/30/2025 - 01/30/2026)
New Contract Time 1,278 days (08/30/2025 - 01/30/2026)
PROJECT ESTIMATE
Original Contract Price $14,953,000.00
Change Order No. 1 782,490.84
Proposed Change Order No. 2 0.00
New Contract Total $15,735,490.84
FINANCIAL PLAN IMPACT
Summary: Sufficient funds are provided in the financial plan for this project.
Funding Source: 5519 - Water Construction Fund
Cost Center: 880000 - Capital Improvement Fund
Expense Type: 616900 - Construction
Project: 115005
Estimated Cost by Year and Related Estimating Variance: N/A
The proposed amendment is for an extension of time only. Although the change order extends the final completion date further into FY 2026, there is no substantive financial impact.
COMMITTEE REVIEW
This item was presented to the Operations and Resources Committee at its meeting on October 8, 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.