Title
Requisition No. REQ-0002364
CSO Facilities Improvements at Oakwood & Leib
CIP #270004/BCE Score: 79.40
Body
Agenda of: June 25, 2025
Item No.: 2025-182
Amount: $60,970,000.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: May 30, 2025
RE: Requisition No. REQ-0002364
CSO Facilities Improvements at Oakwood & Leib
Vendor: Walsh Construction Company II, LLC
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-0002364, “CSO Facilities Improvements at Oakwood & Leib” with Walsh Construction Company II, LLC, at a cost not to exceed $60,970,000.00 for a duration of 2,300 days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
GLWA operates nine Combined Sewer Overflow (CSO) facilities. The CSO facilities provide primary treatment and disinfection during wet weather. Through past projects (Wastewater Masterplan), GLWA has identified various opportunities to balance flow throughout the system, providing opportunities to balance combined sewer overflow in the system and to utilize under-utilized facilities more fully. Two of these projects plan to divert flow from the Northwest Interceptor (NWI) to the Oakwood CSO Facility and to divert flow from the Meldrum sewer to the Leib Screening and Disinfection Facility for processing.
To prepare these CSO facilities for their full utilization, the "CSO Facilities Assessment Report" prepared under GLWA Contract CS-299 identified a series of repairs and enhancements that are recommended to improve facility reliability, efficiency, flexibility, operation, maintenance, and safety. This construction contract will implement those improvements.
GLWA has secured funding for this project under the Michigan Department of Environment, Great Lakes, and Energy’s State Revolving Funds program.
JUSTIFICATION
This construction project will implement the improvements required to meet the goals of the “CSO Facilities Assessment Report” at the Oakwood and Leib CSO Facilities. The required improvements will address the screening, disinfection, flushing, electrical, and instrumentation and control systems at both facilities, as well as heating, ventilating and air-conditioning and structural/architectural improvements at Leib. This project is required before the ongoing construction efforts to divert flows from the NWI to the Oakwood Facility can be fully commissioned.
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-270004
Estimated Cost by Year and Related Estimating Variance: See table below.
Fiscal Year
FY26 $1,627,000.00
FY27 10,135,000.00
FY28 16,361,000.00
FY29 14,164,000.00
FY30 7,987,000.00
Financial Plan Estimate $50,274,000.00
Proposed Contract Award $60,970,000.00
Estimating Variance ($10,696,000.00)
The award of this Contract to the vendor creates a negative estimating variance of $10,696,000.00. This variance will be funded from capital reserves.
COMMITTEE REVIEW
This item was presented to the Operations and Resources Committee at its meeting on June 11, 2025.
SHARED SERVICES IMPACT
This item does not impact the shared services agreement between GLWA and DWSD.