Title
Resolution to Approve a Contract with Lee Contracting, Inc. DBA Midwest Power Systems Inc. for the Repair of Four Clarifiers at the Water Resource Recovery Facility (RFP# 26-28) ($181,430.00)
Memorandum
Attached for your review and consideration is a resolution to approve a General Services Agreement with Lee Contracting, Inc. DBA Midwest Power Systems Inc. (MPS), for the repair of four clarifiers at the Water Resource recovery facility (WRRF) in the amount of $181,430.00.
The WRRF operates twelve Ovivo clarifiers, with each treatment train supported by a primary and secondary unit. The clarifiers were inspected in March of 2026, prompted by damage from harsh winter conditions and normal operational wear. Staff with the assistance of an Ovivo technician, identified necessary repairs to clarifier mechanisms on four separate clarifiers at the WRRF. The required work includes repairing and realigning the upper skimmer arms on two primary clarifiers and one secondary clarifier, as well as repairing the lower rake arm on an additional secondary clarifier.
Proper operation of primary and secondary clarifiers are essential in maintaining treatment capacity on an active train. Clarifiers play a critical role in the wastewater process by allowing settleable solids to sink and for scum to rise, which ensures that the highest-quality effluent is discharged. The upper skimmer arm removes floating scum, while the lower rake arm collects settled sludge from the tank bottom. To function effectively, these mechanisms must remain properly aligned and balanced. The identified repairs are necessary to restore optimal performance and to maintain the WRRF’s full capacity and compliance with the City’s NPDES permit.
Solicitation of Proposals
RFP No. 26-28 was prepared and on May 5, 2026, four responsive proposals were received for this work. A selection committee comprised of WRRF staff reviewed the responsive proposals and determined which respondent was the best value based on the following criteria (as laid out in ORD-21-41, adopted by Council on January 3, 2022):
• Qualifications, Experience & Accountability (20%)
• Workplace Safety (20%)
• Workforce Development (20%)
• Social Equity & Sustainability (20%)
• Schedule of Pricing/Cost (20%)
After reviewing and scoring the proposals, staff ranked the respondents in the following order:
1. Lee Contracting, Inc. DBA Midwest Power Systems Inc.
2. Process Piping & Equipment, Inc.
3. Monroe Plumbing & Heating Company
4. Platinum Mechanical, Inc.
The resolution includes a $19,000.00 contingency, to cover any unknown conditions or potential scope change orders to be approved by the City Administrator if necessary.
MPS complies with the requirements of the City’s Conflict of Interest, Living Wage, Prevailing Wage and Non-Discrimination ordinances.
Budget/Fiscal Impact: Funds to finance this purchase are included in the FY27 WRRF Operations and Maintenance budget for the Sewage Disposal System Fund.
Staff
Prepared by: Nicholas Jaworski, WRRF Unit Assistant Manager
Reviewed by: Keith Sanders , WRRF Unit Manager
Reviewed by: Jordan Roberts, Public Services Area Administrator
Approved by: Milton Dohoney Jr., City Administrator
Body
Whereas, The clarifier mechanisms on four units at the WRRF were identified to need repair by WRRF staff and Ovivo technician;
Whereas, The repairs will return the clarifiers to working optimal performance to ensure WRRF capacity and continued regulatory compliance with the City’s NPDES permit;
Whereas, The City of Ann Arbor solicited proposals for the Clarifier Repair Project under RFP# 26-28;
Whereas, Four responsive proposals were received on May 5, 2026, and MPS received the highest score among the proposals reviewed by the selection committee;
Whereas, MPS has provided a proposal at a cost of $181,430.00 to complete the Primary and Secondary Clarifier Inspection and Repair work;
Whereas, Staff has requested that a project contingency in the amount of $19,000.00 be included to cover any unknown conditions or necessary scope changes upon approval of the City Administrator;
Whereas, Adequate funds for this project in the amount of $200,430.00, including contingency, are available in the FY27 WRRF Operations and Maintenance budget for the sewage disposal system;
Whereas, MPS complies with the requirements of the City’s Conflict of Interest, Living Wage, Prevailing Wage and Non-Discrimination ordinances;
Whereas, It is appropriate now to enter into a contract with said company for said construction project; and
Whereas, The contract sets forth, among other things, the services to be performed by said company, and the payments to be made by the City therefore, all of which are agreeable to the City;
RESOLVED, That City Council approve a General Services Agreement with Lee Contracting, Inc. DBA Midwest Power Systems, Inc. in the amount of $181,430.00 for the Primary and Secondary Clarifier inspection and Repair Project (RFP#26-28);
RESOLVED, That a contingency amount of $19,000.00 be established within the project budget and that the City Administrator be authorized to approve amendments or change orders not to exceed that amount in order to satisfactorily complete this project;
RESOLVED, That the Mayor and City Clerk be authorized and directed to execute said contract after approval as to substance by the City Administrator and approval as to form by the City Attorney; and
RESOLVED, That the City Administrator be authorized to take all necessary actions to implement this resolution.