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RIVERSIDE WATER QUALITY CONTROL PLANT BIOSOLIDS HAULING AND DISPOSAL/REUSECity CouncilSeptember 16, 2025Public Works Department RiversideCA.gov2
Treatment Plant Collections SystemBACKGROUNDWQCP services 93,000 customers within the City of Riverside27Million gallonsper day average16,000 sewer manholes 800 miles of gravity sewers
20 wastewater lift stations
BACKGROUND
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•The Riverside Water Quality Control Plant (RWQCP), managed by the Public Works Wastewater Division, oversees wastewater collection and treatment for Riverside and surrounding communities: •Edgemont, Highgrove, Jurupa, and Rubidoux. •To satisfy the U.S. Environmental Protection Agency’s (EPA) National Pollution Discharge Elimination System (NPDES) Permit, biosolids are hauled under contract to composting facilities in California and Arizona for reuse as a soil amendment. BACKGROUND RiversideCA.gov4
•Under Section 1104 of Purchasing Resolution No.24101, “Change Orders” States that “Modifications to a Purchase order shall be made only by Change Order. Subject to availability of funds, Change Orders may be utilized for purposes of….(2) modify unit pricing , [or] … (5) modifying contract completion time or the term of a Contract.” This section goes on to state that Awarding Entity approval is required when a modification is made that adds an amount greater than 10% of the original contracts and/or Purchase Orders or when it exceeds an amount previously approved by the Awarded Entity. •The total estimated cost for the proposed two-year extension is $8,323,810, which includes a 3% annual Consumer Price Index (CPI). •The Purchasing Manager concurs that the recommended action to purchase is in compliance with Purchasing Resolution No. 24101.DISCUSSION VV1
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Strategic Priority 4 – Environmental Stewardship•Goal 4.2– Sustainably manage local water resources to maximize reliability and advanced water reuse to ensure safe, reliable, and affordable water to our community.Cross-Cutting Threads
STRATEGIC PLAN ALIGNMENT
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That the City Council:1.Approve the Second Amendment to the Services Agreement with Synagro-WWT, Inc., of Baltimore, Maryland, extending the term through June 30, 2027, in the amount of $8,323,810 for a total contract compensation amount of $18,134,204; and 2.Authorize the City Manager, or designee, to execute the Second Amendment to the Services Agreement, including making minor and non-substantive changes. RECOMMENDATIONS VV1
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