Explanation
1. BACKGROUND
This ordinance authorizes the Director of Public Utilities to enter into a contract through the City’s RFP process with HDR Engineering, Inc. for professional engineering services for the Southerly Water Reclamation Plant (SWRP) Dewatering Improvements project, CIP #650349-100001, in an amount up to $3,446,125.60.
This contract is necessary to ensure continued operation of the dewatering process at the SWRP. The plant will become non-compliant without the dewatering process as it provides a means to dewater and prepare biosolids for distribution to the various disposal outlets. The CMAR delivery model will be utilized to complete the improvements as expeditiously as possible.
This contract is for preliminary design, detailed design, and services during construction to replace existing problematic sludge dewatering centrifuges, feed pumps, cake pumps, electrical gear, and supporting equipment at SWRP. The work will include select building improvements to increase resiliency of the dewatering system. The work will also evaluate side stream nutrient removal to improve treatment capacity at SWRP and improve biosolids nutrient composition for more land application opportunity.
Two planned contract modifications to add funding are anticipated. One modification is planned at the completion of design development and a second is planned for services during construction.
The Columbus Community is 99 - Citywide.
TIMELINE: The contract is expected to begin in January 2026 and complete preliminary design in 14 months. CMAR procurement and step 2 services will be acquired before the end of step 1 to begin coordination of the detailed design components. Step 2 services will last through 2028. Step 3 services will be started in April 2028, and construction will be completed by late 2031. The engineering agreement is anticipated to be closed in June 2032.
ESTIMATED COST OF CONTRACT: The proposed award amount is $3,446,125.60, including a 1...
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