City Council Agenda
Memo to:
Manteca City Council
From:
Kevin Jorgensen II, Director of Engineering/City Engineer
Prepared by:
Kyzen Nicolas, Associate Engineer;
Somporn Boonsalat, Deputy Director of Engineering
Date:
July 30, 2025
Subject:
WQCF Sludge Thickener & Dewatering Unit No. 3 Project CIP Nos. 24006 & 24007 - Approval of Agreement for Construction Management and Inspection Services
Recommendation:
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Adopt a resolution approving an Agreement for Services with West Yost for an amount not-to-exceed $1,500,000 to provide construction management and inspection services for the WQCF Sludge Thickener & Dewatering Unit No. 3 Project CIP Nos. 24006 & 24007 and authorize up to $687,512 in contract amendments; 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:
In March 2022, the City of Manteca ("City") completed a capacity assessment study ("Study") for the Wastewater Quality Control Facility ("WQCF"). The Study identified 10 interim improvement projects needed to optimize the WQCF treatment process:
1. Glycerin Injection System (completed and in-service)
2. Replace Waste Activated Sludge ("WAS") Pumps (completed and in-service)
3. Replace Return Activated Sludge ("RAS") Pumps (completed and in-service)
4. Replace Internal Mixed Liquor Recycle Pumps (in construction)
5. Fix Flow Split to North Plant Aeration Basin (in construction)
6. Add New Independent Mixing System to Zone B (in construction)
7. Add Process Aeration Control to Improve Monitoring and Control of Denitrification (in construction)
8. Sidestream Treatment (in Design)
9. Centrifuge No.3 or Equivalent (included in this project, CIP 24006)
10. Add DAF No.3 or Equivalent (included in this project, CIP 24007)
On November 6, 2023, the City entered into an Agreement C2023-136, for Professional Services with Carollo Engineers, Inc. ("Carollo") to evaluate, design, and prepare b...
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