City Council Agenda
Memo to:
Manteca City Council
From:
Michael Selling, Assistant Director of Engineering/City Engineer
Prepared by:
Kyzen Nicolas, Associate Engineer;
Somporn Boonsalat, Deputy Director of Engineering
Date:
April 21, 2026
Subject:
Award a Progressive Design-Build Agreement for Services for the Wastewater Quality Control Facility Ultraviolet Disinfection System Rehabilitation Project (CIP No. 25004) and Ammonia Sidestream Treatment Project (CIP No. 25005)
Recommendation:
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Adopt a resolution determining C. Overaa & Company (Overaa) to be the most responsible, responsive, and qualified Progressive Design-Build (PDB) firm for the Wastewater Quality Control Facility Ultraviolet Disinfection System Rehabilitation Project (CIP No. 25004) and Ammonia Sidestream Treatment Project (CIP No. 25005) (collectively Project); awarding the PDB Agreement for Services to Overaa for an amount not-to-exceed $2,397,730 and authorizing up to $20,000,000 in PDB Agreement amendments for the Project; approving Amendment No. 2 to Agreement C2024-120 for Professional Services with Carollo Engineers, Incorporated for an amount not-to-exceed $300,000 for the Project; approving a Project contingency of $20,000,000; and authorizing the City Manager or designee to take all appropriate actions necessary to carry out the purpose and intent of the resolution.
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Background:
Public Contract Code Chapter 4.7 Section 22185 allows local agencies to utilize PDB contracting for up to 10 public works projects in excess of $5,000,000 for each project.
The advantages to a PDB delivery method are:
* The city continues to participate in the design decision making process
* The contractor is involved early in the design process
* Equipment can be ordered as soon as design packages are approved
* Reduced construction conflicts
* Reduced project delivery timeline
The PDB delivery method is composed of the following phases:
* Pre-Construction Phase, where the PDB fir...
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