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1 RiversideCA.gov
1 RiversideCA.gov
RIVERSIDE WATER QUALITY CONTROL PLANT
CHEMICAL PURCHASES – CHANGE ORDERS
City Council
April 16, 2024
Public Works Department
RiversideCA.gov
2 Treatment Plant
Collections System
BACKGROUND
WQCP services 93,000 customers
within the City of Riverside
27 Million gallons
per day average
16,000 sewer manholes
800 miles of gravity sewers
20 wastewater lift stations
BACKGROUND
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3 • The Public Works Department Wastewater Division is responsible for the collection & treatment of wastewater generated within the City of Riverside & the communities of Edgemont, Highgrove, Jurupa & Rubidoux at the RWQCP.
• To satisfy the US Environmental Protection Agency’s (EPA) National Pollution Discharge Elimination System (NPDES) Permit, wastewater must be treated to achieve regulatory water quality standards.
• The RWQCP treatment processes require the use of various chemicals to achieve water quality objectives.
BACKGROUND
RiversideCA.gov
4 • Market volatility, temporary supply shortages, and the Consumer Price Index (CPI) unexpectedly caused a rise in unit costs for chemicals that were budgeted for the current FY 2023/24 budget cycle.
• The usage of chemicals for the remainder of FY 2023/2024 is anticipated to increase due to the Chlorine Contact Basin #2 (CCB2) closure while it is being upgraded to meet conditions set forth by the Department of Drinking Water (DDW) to operate at a lower contact time.
• This change order request is in accordance with Resolution 23914 “Section 1104.
Change Order.
• The Purchasing Manager concurs that the actions to approve are in compliance with Purchasing Resolution No. 23914, per Section 1104.
DISCUSSION
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5 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
RiversideCA.gov
6 That the City Council:
1. Approve a change order to annual Purchase Order No. 240548 for ferric chloride with Kemira Water Solutions, Inc., of Fontana, California , in the amount of $165,000 for a revised total of $1,110,000;
2. Approve a change order to annual Purchase Order No. 241158 for sodium bisulfate with Univar USA, Inc., of Kent, Washington, in the amount of $225,000 for a revised total of $960,000;
3. Approve a change order to annual Purchase Order No. 241153 for sodium hypochlorite with Pioneer Americas, LLC., of Wilmington, Delaware, in the amount of $1,387,285 for a revised total of $ 3,200,000;
4. Approve a change order to annual Purchase Order No. 241670 for polymer with SNF Polydyne, Inc., of Riceboro, Georgia, in the amount of $741,000 for a revised total of $2,211,000; and
5. With at least five affirmative votes, authorize the Chief Financial Officer, or designee, to record a supplemental appropriation $1,888,285 from available Sewer Working Capital to the Sewer Fund, Sewer Systems Treatment, Chemical Supplies expenditure account.
RECOMMENDATIONS
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