Title
Requisition No. REQ-0007184
Hubbell Southfield CSO Facility Improvements
Federally Funded CIP #273001 / BCE Score: 75.70
Body
Agenda of: April 22, 2026
Item No.: 2026-126
Amount: $55,580,000.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: March 27, 2026
RE: Requisition No. REQ-0007184
Hubbell Southfield CSO Facility Improvements
Vendor: Commercial Contracting Corporation
Status: New Contract/PO
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 Requisition No. REQ-0007184, “Hubbell Southfield CSO Facility Improvements” with Commercial Contracting Corporation, at a cost not to exceed $55,580,000.00 for a duration of 1,458 days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
This project is a recommendation from the Combined Sewer Overflows (CSO) Facilities Assessment Project (CS-299) initiated to address the findings for the Hubbell Southfield CSO Facility. The Hubbell Southfield CSO Facility operates during wet weather events to capture and treat combined sewer overflows, preventing untreated discharges from entering the Rouge River. Since beginning operation in 1996, the facility has served as a critical control point for CSOs from portions of the city of Dearborn and the west side of Detroit. Over time, the existing flushing system has proven inadequate for effective clean the basin as required by GLWA’s National Pollutant Discharge Elimination System (NPDES) permit. The overhead spray wash nozzles do not provide sufficient scouring of the basin floors, resulting in solids accumulation and increased reliance on labor-intensive manual cleaning. The disinfection system has also experienced operational challenges, including depletion of liquid chlorine during events, which require on-site manual chemical mixing.
Additionally, the majority of the electrical infrastructure (motor control centers, wiring, and conduits, etc.) remains original to the facility and is now past its service life. The absence of exterior lighting on the basin deck and access drive creates unsafe working conditions. Instrumentation and Control Systems also require upgrades to the latest Ovation platform to standardize controls across CSO facilities and enhance monitoring and control capabilities.
JUSTIFICATION
To ensure the long-term viability of the system, the primary goals of this project are to bring the Hubbell Southfield CSO Facility up to current codes and standards, improve overall operations, enhance system reliability and performance, and improve safety and ease of maintenance for facility staff. The project includes improvements to basin flushing, dewatering, disinfection, screening, instrumentation and controls, architectural and heating, ventilation, and air conditioning systems, electrical infrastructure, and various site improvements. These improvements will increase facility resiliency for chemical disinfection to ensure it does not run out of disinfectants during an event, and also to ensure quick and efficient means of cleaning the basin, as required by the NPDES permit. Collectively, these improvements will help facility performance, resiliency, and compliance with the NPDES permit. This project is SRF funded and includes some principal forgiveness.
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-273001
Estimated Cost by Year and Related Estimating Variance: See table below.
Fiscal Year
FY27 $1,710,000.00
FY28 6,975,500.00
FY29 14,103,000.00
FY30 14,103,000.00
FY31 10,585,500.00
FY32-36+ 7,377,000.00
Financial Plan Estimate $54,854,000.00
Proposed Contract Award $55,580,000.00
Estimating Variance (726,000.00)
The award of this Contract to the vendor creates a negative estimating variance of $726,000.00. This variance will be funded from capital reserves.
COMMITTEE REVIEW
This item was presented to the Operations and Resources Committee at its meeting on April 8, 2026.
SHARED SERVICES IMPACT
This item does not impact the shared services agreement between GLWA and DWSD.