Title
Requisition No. REQ-0004099
Pump Station No. 2 Variable Frequency Drives Upgrade at the Water Resource Recovery Facility
Federally Funded CIP #211005 / BCE Score: 77.40
Body
Agenda of: March 25, 2026
Item No.: 2026-090
Amount: $38,789,412.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: February 27, 2026
RE: Requisition No. REQ-0004099
Pump Station 2 Variable Frequency Drives Upgrade at the Water Resource Recovery Facility
Vendor: Clark Construction Company
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-0004099, “Pump Station 2 Variable Frequency Drives Upgrade at the Water Resource Recovery Facility” with Clark Construction Company, at a cost not to exceed $38,789,412.00 for a duration of 1,885 days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
Pump Station No. 2, built in 1994, receives its influent flow from the Oakwood Interceptor and North Interceptor East Arm. The wastewater enters the pump station, where it is lifted by eight (8) centrifugal pumps, and is then conveyed by gravity through the screening facility. Five (5) of the eight (8) pumps are equipped with variable frequency drives (VFDs), which are used to control the flow of wastewater into the Water Resource Recovery Facility. The VFDs have reached the end of their serviceable life and spare parts are no longer available. Accordingly, it was recommended to rehabilitate the VFDs with energy efficient and more reliable control systems that require less maintenance and to replace the aging motors. To modernize the motors and VFDs, this project involves replacing VFDs for five (5) of the main lift pumps at Pump Station No. 2, supplying and installing five (5) 1,000 horsepower lift motors, and upgrading the electrical switchgear and transformers to power all eight (8) main lift pumps. The project is approved for the State Revolving Fund.
JUSTIFICATION
The purpose of this project is to improve the reliability, capacity, and operational resilience of Pump Station No. 2 and its associated electrical infrastructure, allowing Pump Station No. 2 to align with the National Pollutant Discharge Elimination System Permit flow capacity requirements in terms of flow measurement and VFD controls. This project includes major upgrades to medium-voltage distribution systems, replacement of aged switchgear and transformers, installation of new VFDs pump motors, replacement of five (5) motors, and the construction of a new primary unit substation, along with heating, ventilation, and air conditioning and building systems improvements within electrical buildings (EB)-1 and EB-13A, and removal of obsolete equipment.
FINANCIAL PLAN IMPACT
Summary: Sufficient funds are provided in the financial plan for this project.
Funding Source: 5421 - Sewage Disposal Construction Fund
Cost Center: 880000 - Capital Improvement Fund
Expense Type: 616900 - Construction
Project: PRJ-211005
Estimated Cost by Year and Related Estimating Variance: See table below.
Fiscal Year
FY 2026 Plan $144,000.00
FY 2027 Plan $1,467,000.00
FY 2028 Plan 5,790,000.00
FY 2029 Plan 6,483,000.00
FY 2030 Plan 4,372,000.00
FY 2031 Plan 1,743,000.00
Financial Plan Estimate $20,000,000.00
Proposed Contract Award 38,789,412.00
Estimate Variance ($18,789,412.00)
The award of this Contract to the vendor creates a negative estimating variance of $18,789,412.00. This variance will be funded from capital reserves.
COMMITTEE REVIEW
This item was presented to the Operations and Resources Committee at its meeting on March 11, 2026.
SHARED SERVICES IMPACT
This item does not impact the shared services agreement between GLWA and DWSD.