3/20/2025
1 RiversideCA.gov1
RiversideCA.gov
RIVERSIDE WATER QUALITY CONTROL PLANT CHEMICAL PURCHASES – CHANGE ORDERSCity CouncilApril 8, 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
1 2
3/20/2025
2 RiversideCA.gov3
•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, the wastewater must be treated to comply with water quality standards. •The treatment process relies on various chemicals to achieve the required water quality.BACKGROUND RiversideCA.gov4
•Staff is seeking City Council approval for Change Order Purchase Orders for Chemical purchases for the remainder of the fiscal year.•The Purchasing Manager concurs that the recommended action to purchase is in compliance with Purchasing Resolution No. 24101 section 1104.DISCUSSION3 4 3/20/2025
3 RiversideCA.gov5
FY 2024/2025 Chemicals Change Order RequiredDISCUSSION (CONTINUED …)Change Order RequiredChemicalVendor$458,080Ferric ChlorideKemira Water Solutions, Inc.$320,620Sodium BisulfateUnivar USA, Inc.$576,134Sodium HypochloritePioneer Americans LLC$555,030PolymerSNF Polydyne, Inc.$1,909,864Total Change Order Required RiversideCA.gov6
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 ALIGNMENT5
6 3/20/2025
4 RiversideCA.gov7
That the City Council:1. Approve a change order to annual Purchase Order No. 250548 for ferric chloride with Kemira Water Solutions, Inc., of Fontana, California, in the amount of $458,080 for a revised total of $1,208,080; 2. Approve a change order to annual Purchase Order No. 251158 for sodium bisulfite with Univar USA, Inc., of Kent, Washington, in the amount of $320,620 for a revised total of $1,020,620; and3. Approve a change order to annual Purchase Order No. 251153 for sodium hypochlorite with Pioneer Americas, LLC., of Wilmington, Delaware, in the amount of $576,134 for a revised total of $2,955,715; 4. Approve a change order to annual Purchase Order No. 251670 for polymer with SNF Polydyne, Inc., of Riceboro, Georgia, in the amount of $555,030 for a revised total of $2,255,030; 5. With at least five affirmative votes, authorize the Chief Financial Officer, or designee, to record a supplemental appropriation of $788,756 from available Sewer Working Capital to the Sewer Fund, Sewer Systems Treatment, Chemical Supplies expenditure account.RECOMMENDATIONS7