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1 RiversideCA.gov
1 RiversideCA.gov
UPDATE ON RWQCP BIOGAS & DIGESTATE
MANAGEMENT UPGRADING FACILITIES
Mobility and Infrastructure Committee
April 13, 2023
Public Works Department
RiversideCA.gov
2 1. August 18, 2020 - City Council approved Public works Renewable Resource Management Plan.
2. RWQCP infrastructure and biogas currently
underutilized
3. RWQCP upgrades can optimize infrastructure and
generate revenue from byproducts (biogas &
digestate)
PROJECT BACKGROUND
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2 RiversideCA.gov
3 4. Organic waste recycling at RWQCP can support
SB1383 compliance and enhance project impact
5. Experienced P3 entity provides financing,
infrastructure, and operations, which reduces project
risk to City
PROJECT BACKGROUND
RiversideCA.gov
4 1. Biogas: Upgrade RWQCP biogas to RNG for SoCal Gas
pipeline injection and sale
2. Digestate Management: Process and manage
RWQCP biosolids from anaerobic digestion for sale
3. Rehabilitation of Digester No . 5: Return digester to service to enable digestion of food waste, leveraging
$3 million in awarded CalRecycle grant funds
PROJECT SCOPE
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5 PROJECT STRUCTURE
Soil Amendment
City of Riverside Landfill‐
Diverted Organics
Pipeline RNG
Upgraded RWQCP
Infrastructure
City of Riverside
• Lease Payments
• Sales Agreement Revenue
• Capital Improvements
RWQCP Biosolids
P3 Project Proponent
RiversideCA.gov
6 Community Well‐Being
•P e r m i t Compliance
• Minimum Aesthetic Impact
•S t a k e h o l d e r Collaboration
•N e i g h b o r i n g Waste Recovery Facilities
•R a t e Stabilization
Economic Opportunity
• Capital from P3 Partner
•L o c a l Employment & Investment
•P h a s i n g to Expedite Benefits
• Maximize Revenue Share
Environmental Stewardship
• Maximize Biomethane & Digestate Recovery
• 100% Utilization, Plus Enhanced Resource
Recovery
•S B 1 3 8 3 Solutions
Infrastructure Enhancement
• Technology Solutions
• Ancillary Capital Upgrades
•P 3 O&M Minimizes Cost, Improves Value
• Future Expansion
ADVANCING CITY GOALS
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7 REGIONAL RESOURCE RECOVERY
Soil Amendment
(Up to 3x)
City & Regional Landfill‐
Diverted Organics
Pipeline RNG
(Up to 4x)
City of Riverside
• Lease Payments
• Sales Agreement Revenue
• Capital Improvements (~2x value)
City & Regional
Wastewater Biosolids
Upgraded RWQCP
Infrastructure
P3 Project Proponent
RiversideCA.gov
8 Community Well‐Being
• Enhanced Stakeholder Collaboration,
including Regional Partnerships for Organics
Recycling
• Reduced Ratepayer Risk through Enhanced
Revenue Generation
Economic Opportunity
• Enhanced Investment from P3 Partner
• Increased Employment Opportunities
• Maximize Revenue Share
Environmental Stewardship
• Significant Expansion of Resource Recovery
• Maximized Renewable Energy Generation
• Local & Regional SB1383 Solutions
• Increased Organics Diversion
• Diversified Options for SB1383 Procurement
Infrastructure Enhancement
• Plant‐Wide Infrastructure Renewal
• Max Benefit of Existing Infrastructure
• Ancillary Capital Upgrades
• P3 O&M Minimizes Cost, Improves Value
REGIONAL APPROACH INCREASES BENEFIT WITH IMPROVED
ECONOMIES OF SCALE
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9 FUNDS ENHANCE ECONOMICS
1. CalRecycle grant programs demonstrate
continued State support for organics digestion &
biogas projects
• ORG5, 2021: $2 million for Digester No. 5 rehab
• ORG7, 2023: Up to $13 million available for project
scope, applications due April 20, 2023
RiversideCA.gov
10 SUSTAINABLE AND SELF-RELIANT RIVERSIDE
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11 Strategic Priority 4 – Environmental Stewardship
Goal 4.6: Implement the requisite measures to achieve citywide carbon neutrality no later than 2040.
Strategic Priority 5 – High Performing Government
Goal 5.2: Utilize technology, data and process improvement strategies to increase efficiencies, guide decision making and ensure services are accessible and distributed equitably throughout all geographic areas of the City.
Strategic Priority 6 – Infrastructure, Mobility, and Connectivity Goal 6.3 Identify and pursue new and unique funding opportunities to develop, operate, maintain, and renew infrastructure and programs that meet the community’s needs.
Cross-Cutting Threads
STRATEGIC PLAN ALIGNMENT
RiversideCA.gov
12 That the Mobility and Infrastructure Committee receive an update on the Riverside Regional Water Quality Control
Plant Biogas and Digestate Management Upgrade
Facilities in support of a Sustainable and Self-reliant Riverside
RECOMMENDATION
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