City of Riverside
RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
Request for Proposals for Professional Services
Riverside Regional Water Quality Control Plant
Biogas & Digestate Management Upgrading Facilities
City of Riverside, Finance-Purchasing Division
)HEUuary 3, 2023
City of Riverside
RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
Table of Contents
A. COVER LETTER ............................................................................................................................... ................ ϭ THE ANAERGIA ADVANTAGE ........................................................................................................................................................... 2 B. STATEMENT OF UNDERSTANDING & APPROACH .............................................................................................. 2 BIOGAS (PHASE 1)........................................................................................................................................................................ 3 REHABILITATION OF DIGESTER NO.5&F OOD WASTE DIGESTION (PHASE 2) ........................................................................................... 5 DIGESTATE MANAGEMENT (PHASE 2)............................................................................................................................................... 8 ADDITIONAL SCOPE ENHANCEMENTS TO BE INVESTIGATED .................................................................................................................. 9 C. P3 ENTITY INFORMATION ............................................................................................................................... 10 D. PROJECT MANAGEMENT TEAM ...................................................................................................................... 12 E. PROJECT IMPLEMENTATION & DELIVERY METHOD ......................................................................................... 13 PERMITTING &D ESIGN ................................................................................................................................................................ 13 CONSTRUCTION ......................................................................................................................................................................... 17 COMMISSIONING......................................................................................................................................................................... 18 OPERATIONS ............................................................................................................................................................................. 19 F. CAPITAL IMPROVEMENT PLAN ....................................................................................................................... 21 G. PROJECT PERMITTI NG REQUIREMENTS ......................................................................................................... 24 PHASE 1: BIOGAS (BIOGAS CONDITIONING, RNG UPGRADING,&I NTERCONNECT)..................................................................................25 PHASE 2: SOLIDS HANDLING (DIGESTATE MANAGEMENT &R EHABILITATION OF DIGESTER NO.5 )..............................................................25 H. LIFE CYCLE COST ............................................................................................................................... .......... 26 I. PROJECT SCHEDULE ............................................................................................................................... ..... 27 APPROACH TO PHASING .............................................................................................................................................................. 27 APPROACH TO DEVELOPMENT SCHEDULE ....................................................................................................................................... 28 APPROACH TO CONSTRUCTION &C OMMISSIONING SCHEDULES ..........................................................................................................29 APPENDIX A: PROCESS FLOW DIAGRAM (CONFIDENTIAL)....................................................................................... 3 ϯ APPENDIX B: LETTERS OF SUPPORT...................................................................................................................... 3 ϵ APPENDIX C: INTERCONNECTION LETTERS ............................................................................................................ ϰϮ APPENDIX D: SCENARIO 1 BASE SCOPE RENDERINGS............................................................................................ ϰϲ APPENDIX E: SCENARIO 2 ENHANCED SCOPE RENDERINGS ................................................................................... 5 Ϯ City of Riverside 1
RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
a. Cover Letter
City of Riverside, Financing-Purchasing Division
Public Works Department/Sewer Division
3900 Main Street, Riverside, California 92522
Anaergia Services, LLC (Anaergia) is pleased to submit this Proposal in response to the City of Riverside’s (City) Request for Proposals (RFP) No. 2222 for Professional Services for Riverside Regional Water Quality Control Plant (RWQCP) Biogas and Digestate Management Upgrading Faci lities. We have reviewed and understand the RFP, Sample Agreement and Addendum 1. We are willing and eager to enter into a contract that aligns with the terms provided in the RFP and sample agreement documents.
Anaergia is the world leading solution provider in the recovery of resources and valuable products from organic waste including biosolids and food waste. Our technologies and integrated solutions are used to achieve organics recycling and municipal waste diversion goals, manage dige state, produce renewable ener gy from biogas, and generate additional revenue sources for our partner s. Anaergia proposes to deliver a turn key Public-Private Partnership (P3) project for pipeline renewable natural gas (RNG), digestate management, and food waste digestion at RWQCP.
Backed by our extensive experience, financing strength, and suite of unique technologies, Anaergia is an ideal partner to develop and execute a P3 project that maximizes benefit to the City and its ratepayers while limiting risk. With our unmatched track record of P3 bioenergy pr ojects in the State, Anaergia is the only qualified partner to deliver the City a P3 project to expediently enhance infrastructure and generate revenue:
1. Anaergia’s Southern California-based team offers in-house development, engineering, permitting, construction management, commissioning, and operations staff. Our dedicated personnel bri ng deep industry knowledge, stakeholder relationships, and lessons learned to ensure project success.
2. Our team has delivered multiple P3 biogas and digestate pr ojects in Southern California, providing Design, Build, Own, Operate, and Finance services – including California’s first wastewater co-digestion to pipeline RNG project with Victor Valley Wastewater Reclamation Authority and the St ate’s largest RNG facility at RBF. Anaergia has the proven track record to deliver the project.
3. Anaergia alone has the industry-leading vertically int egrated capabilities to deliver an enhanced project with improved economies of scale and upside to the City. Anaergia’s turnkey solutions can uniquely deliver an optimized project design that exceeds City goals. Thro ugh high efficiency digestion, network of waste haulers, and regional deployment of our OREX ™ organics recovery technology, Anaergia can secure the processing capability and robust food waste supply that is essential to maximize resource recovery and revenue generation.
4. RBF is currently providing sustainable Class A bioso lids thermal conversion services for multiple SoCal municipalities and actively building new markets and revenue streams for the Biochar end-product.
5. Anaergia is supported by our trusted team member, W.M. Lyles Co. (Lyles). Beyond deep industry expertise constructing wastewater and energy projects in California , Lyles has a successful partnership record with both Anaergia as well as the City of Riverside RWQCP.
We thank you for your consideration and look forward to partnering with the City on this project. Anaergia’s preferred point of contact is Margaret Laub, Project Development Manager, [email protected], (703) 593-4403.
Regards,
Yaniv Scherson, Ph.D., P.E.
Anaergia, Chief Operating Officer
City of Riverside 2
RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
The Anaergia Advantage
The City of Riverside (City) will benef it from partnering with Anaergia Servic es, LLC (Anaergia) and team member W.M.
Lyles Co. (Lyles) (collectively, the Anaergia Team), the only respondent with a proven track record of multiple P3 facilities in Southern Ca lifornia wastewater plants (Victor Valley Water Reclamation Authority, East Valley Water District, City of Rialto, City of Escondido) for comprehensive resource recovery of biogas, digestate, and food waste.
Beyond meeting the City’s goals, Anaergia offers flexible pr oject enhancements (detailed in Section B) only available through our proprietary technologies, operational expertise, and robust Southern California network of in-house resources, facilities, and partners.
x A full-service P3 partner for long term performance | Anaergia works “with the end in mind” to provide guaranteed performance informed by our own operational expertise and lessons learned in biogas and solids handling. With our Owner’s perspective and partnership mindset, we seek to collaborate to drive continual improvement in each phase. x Unmatched organics-to-energy expertise reduces risk | Teaming with Anaergia offers unique access to a suite of turnkey equipment, local field teams, Anaergia’s neighboring facilities, WUXVWHG financiers, and an established partner network for the most reliable and flexible solutions.$QDHUJLDIDFLOLWDWHVUHJLRQDOSDUWQHUVKLSVWRVHUYHWKH&LW\ x Vertical integration unlocks exceptional economies of scale | Pair proprietary Anaergia organics-to-energy technologies and unparalleled access to food waste supplies to maximize City infrastructure and return on P3 investment.
x Proven high-functioning P3 team with successful track record | Extensive previous design-build teaming experience between Anaergia and general contractor t eam member Lyles equates to shared values, streamlined decision-making processes – inclusive of the City – and the ability to quickly respond to challenges. The result is faster realization of benefits by the City.:HORRNIRUZDUGWRH[WHQGLQJRXUHVWDEOLVKHGSDUWQHUVKLSWRLQFOXGHWKH&LW\ x Local team with key stakeholder relationships | Locally based resources will respond to project needs with equipment and manpower that can be deployed quickly in each stage of the project life. From nearby offices, facilities, and project sites, our team brings strong relationships and deep knowledge of local permitting and regulatory requirements, utility agencies, contractors, feedstock suppliers, and offtakers. x Enhancing – not distracting – RWQCP operations | From material selection and traffic planning, to best-in-class waste-to-energy operators, to knowledge of site supplemented by Lyles, the Anaergia team knows the opportunities available to the City to design and deliver an industry-leading project that maximizes resource recovery benefit while limiting impact to RWQCP staff and operations.
EE Statement of Understanding & Approach
Anergia proposes to design, build, ow n, operate, and finance upgrades at the Ri verside Regional Water Quality Control Plant (RWQCP) for Biogas and Digestate Management Upgrading Facilities (the Project), and provide proprietary Anaergia technology to achieve and potentially enhance the desired scope. Anaergia can develop and deliver a best-value solution to meet the City’s goals:
Scenario 1: Base Scope, as defined in the RFP:
x Biogas conditioning, upgrading, and pipeline injection of ~500 standard cubic feet per minute (scfm) x Digester No. 5 rehabilitation, with Anaergia high-solids submersible mixers x Receiving and digestion of up to 100 tons per day (tpd) liquid (10% total solids, TS) food waste x Digestate management of up to 100-150 wet tpd, including food waste digestate Scenario 2: Enhanced Scope, as proposed for further evaluation by Anaergia, provides the City’s requested capabilities and complements with additional strategic upgrades for optimized operations. As a result, the Enhanced Scope offers improved project economics, financeability, and revenue generation potential to the City. The Enhanced Scope offers broader infrastructure upgrades to deliver increased treatment capacity, plant UHVLOLHQF\, and operational flexibility to City of Riverside 3
RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
adapt to future loads and changing operations. The Enhanced Scope can either serve as the initial design basis, or may also be implemented as a future expansion to the Base Scope, depending on City preference. Scenario 2 generally illustrates a maximum case for biogas production; Anaergi a would propose to evaluate additional alternatives or permutations during early development based on City guidance, requirements, and operating constraints (e.g., discharge limits such as nitrogen and total dissolved solids).
x Biogas conditioning, upgrading, and pipeline injection of up to ~2,000 scfm x High-solids retrofits for Digesters No. 1-5, with Anaergia Omnivore™ and high-solids submersible mixers x Receiving and co-digestion of up to 800 tpd (15% TS) food waste x Digestate management of up to 300 tpd, including food waste digestate From our extensive experience developing, financing, and delivering comprehensive resource recovery projects, Anaergia is confident in our ability to provide the following key benefits to the RWQCP through our unmatched industry qualifications, broad capabilities, and tailored approach for the City, in either Scenario:
x Maximize HFRQRPLFYDOXHDQGrevenue to the City, through:
D
maximized biogas production;
E
valorization of 100% biogas via RIN/LCFS programs, gas utility offtakes, and voluntary markets; F
expansion of food waste receiving and tip fee revenue, with feedstock certainty leveraging Anaergia’s OREX™ technology and network of regional haulers;
G
creation of marketable end-product from 100% biosolids via Anaergia’s proprietary pyrolysis and near-by blending facilities to produce high-value biochar fertilizer
x Improve RWQCP infrastructure FRQGLWLRQDHVWKHWLFVDQGXWLOL]DWLRQ E\ employing Anaergia technologies to optimize sizing, enhance operational flexibility, SUHYHQWVWUDQGHGDVVHWV and support potential future expansion x 5HGXFH VWDII RSHUDWLRQDO EXUGHQ E\ FRPSOHPHQWLQJ UHTXHVWHG FDSDELOLWLH V ZLWK GHGLFDWHG RQVLWH VWDII LQQRYDWLYH RSHUDWRUILUVW GHVLJQV DQG DQFLOODU\ FDSLWDO LPSURYHPHQWV E\ $QDHUJLD HJ GHZDWHULQJ IDFLOLW\ HQKDQFHPHQWV
x Expedite realization of project benefits through phased delivery, expansion opportunities, and streamlined delivery, leveraging extensive proven P3 experience with municipalities and project stakeholders (including SoCal Gas and South Coast Air Quality Management District)
x Mitigate risk to City and ratepayerV, with full funding by Anaergia P3, and support for rate stabilization and capital funds with revenue streams to the City from VDOHV DJUHHPHQWV, lease payments, and other economic benefits x Identify and secure available state and federal funding to improve economics and revenue share potential x Advance City’s Strategic Plan 2025 and compliance with organics recycling mandates (SB 1383) LQFOXGLQJ VXVWDLQDELOLW\ DQG HQYLURQPHQWDO VWHZDUGVKLS ILVFDO UHVSRQVLELOLW\ LQQRYDWLRQDQG ZRUNIRUFH GHYHORSPHQW Our proposed technical approach to maximize benefit in line with City goals is outlined in this Section. See Section E for detail on our proposed delivery and management approach. Appendix A provides process flow diagrams for both the Base Scope and Enhanced Scope.
Biogas (Phase 1)
Pipeline-injected renewable natural gas (RNG) is the most economically favorable use of wastewater digester biogas.
Supported by environmental credits, str ong markets, and California renewable ga s procurement standards, Anaergia is supportive of the City’s interest to produce RNG for pipeline injection to the SoCal Gas system for sale. Appropriate biogas upgrading technology is essential for RNG to meet stringent pipeline injection standards (SoCal Gas Rules 30 and 45).
City of Riverside 4
RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
Biogas must be nearly free of carbon diox ide, hydrogen sulfide, trace gases, siloxanes, and volatile organic compounds (VOCs). Anaergia’s integrated systems and technology meets these challenges while providing a cost-effective, easy to operate, and robust biogas upgrading system. Combined, Anaergia’s biogas conditioning systems and proprietary Biogas Upgrader (BUG™) produce carbon negative RNG for injection into the gas grid. Anaergia financed, designed, built, owns, and operates these technologies locally at RBF (up to 3,500 scfm biogas) and VVWRA (up to 1,200 scfm of biogas).
Anaergia’s proprietary BUG is operating at VVWRA, hav ing passed the utility 40-day performance test period demonstrating consistent achievement of utility RNG specifications.
We propose to size the biogas systems based on 100% of expected RWQCP biogas produc tion (including biogas from expected food waste). This will provide com plete biogas utilization in the event of Fuel Cell syst em downtime. Further, it may be economically favorable to send 100% of biogas to RNG under normal operations and meet Fuel Cell fuel demand with natural gas. In this scenario, the P3 entity would leverage the more valuable RNG to offset the cost of the increased natural gas consumption. If desired by the City and allowabl e by the terms of the Powe r Purchase Agreement, Anaergia would evaluate this approach during development. It is recommended that boilers run entirely on natural gas and no biogas be used as boiler fuel, to support maximum revenue generation while maintaining reliable boiler operations.
As discussed in subsequent sections, biogas upgrades described below are generally proposed to be designed, constructed, and commissioned as a Phase 1, ahead of Phase 2 Solids Handling scope (comprised of Digester No. 5 Rehabilitation & Food Waste and Digestate Management).
Figure 1: Rendering of Proposed Phase 1 Biogas Facilities Conditioning: Generally, the biogas is conditioned through condens ate and H2S/VOC removal systems, along with a compressor to remove compounds which negatively impact t he upgrader and RNG quality. A naergia’s conditioning train design will be customized based on RW QCP gas quality and SoCal Gas require ments. At the RWQCP, ammonia scrubbing is proposed to remove constituents in biogas specifically associated with digestion of food waste, prevent wear
City of Riverside 5
RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
on downstream components, and effectively meet air permit requirements. Careful design of biogas conditioning processes can further extend media life and effectively manage lifecycle O&M costs.
Upgrading: Anaergia’s BUG system strips carbon dioxide from biogas to produce RNG that m eets the most stringent pipeline gas quality standards. The BUG is modular, constructed on a series of skids (compressor skid, high-pressure conditioning skid, and membrane skid) and can be delivered in an enclosure. This minimizes on-site construction and provides an operator friendly design. All BUG™ units are supplied with gas flow measurement and instrumentation for reliable process control and product gas quality assurance. Conditioned biogas is received by the BUG and converted into a methane rich RNG product, and a met hane lean tail gas stream. A dedicated thermal oxidizer (TO) will be provided on the BUG for emissions control within air permit limits. Use of standalone TO will facilitate the front-loading of Phase 1 permits. A flare or additional gas storage will be evaluated for management of off-spec RNG.
Interconnection: Anaergia would be responsible for engaging with SoCa l Gas to confirm adequate pipeline capacity for the proposed RNG volumes, secure interconnect agreement, est ablish a utility point of rece ipt, and tie into the utility system. In our experience, SoCal Gas typically requires a parcel of approximately 100 feet by 150 feet for the designated utility point of receipt, which include s utility gas quality monitoring equipment to ensure compliance with utility RNG specifications. Based on Figure 1, we anticipate that there is sufficient footpr int available for SoCal Gas utility point of receipt and gas quality monitoring equipment in the i dentified location for RNG upgrading and interconnection. The anticipated interconnection point to the So Cal Gas system is a two-inch line along Acorn Street, within several hundred feet of the proposed location for the RNG upgrader. Anaergia would review previously completed interconnection studies by the City in collaboration with SoCal Gas to confirm capacity at this point. If insu fficient (or if a larger RNG project is pursued as part of the Enhanced Scope), interconnection may be required at the larger pipeline along Jurupa Avenue.
Interconnection at the busier street and intersection may pres ent additional complications, ho wever, we are confident in our ability to execute based on our success with the challenging RBF interconnection.
Enhanced Scope : The Enhanced Scope represents a significant in crease in expected biogas production, up to approximately 2,000 scfm. Modular biog as upgrading systems can accommodate a wide range of design basis biogas flows, and the system could be readily expanded should the Enhanced Scope be implemented in the future for increased food waste digestion and RNG production. RWQC P flare upgrades would be required in this scenario to accommodate maximum biogas flows and would be included in the P3. Anaergi a also proposes evaluation of additional gas storage. In the event of biogas upgrading system dow ntime, storage would prov ide buffer capacity to ensure the gas can be beneficially reused once the system returns to service.
Rehabilitation of Digester No. 5 & Food Waste Digestion (Phase 2) Anaergia is supportive of the City’s interest to re-initiate and expand food waste receiving to boost biogas production and support regional compliance with California organics recycling mandates. The RWQCP is a particularly good candidate for such a project given existing excess digester capacity and location in a population-dense, food waste-rich region LQ QHHG RI VXVWDLQDEOH GLVSRVDO RXWOHWV. Excess biogas will benefit the City by (1) offsetting current natural gas purchases to support PPA operations, due to biogas production shortfalls and (2) enabling production of highly-valuable carbon- negative RNG for sale. Anaergia would provide necessary upgrades to return Digester 5 (currently empty) to operability with capability to process up to 100% food waste. While this scope is currently proposed to be implemented as part of Phase 2 (Solids Handling), Anaergia understands the timelines associated with CalRecycle grant terms. Immediately following Notice to Proceed (NTP), we propose a roundtable with CalRecycle, the City, and Anaergia to understand schedule implications and the appropriate phasing approach. Key upgrades proposed for this scope include:
Feedstock Receiving: Food waste receiving upgrades at the existing liquids receiving station would include additional buffer storage to enable receipt of desired 100 tpd liquid food waste. As shown in Figure 2, two (2) 30,000-gallon storage tanks are currently proposed to provide a two-day feedstock supply, in line with recommendations from the Food Waste City of Riverside 6
RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
Evaluation Technical Memorandum (TM) provided in the RFP. (We propose to closely review and validate the TM early in development.) Buffer storage offers operational flexibility in the event of changes to feedstock delivery schedule and system downtime. Buffer storage supports 24/7 operations, as digester operati ons will continue even while weekend deliveries of food waste typically do not. Further, maintaini ng consistent organic loading to the digester will promote digester health.
Two new redundant receiving skids (including truck hook up, pumps, and rock traps/screens) are proposed at the existing receiving station. However, during development, we propose to evaluate the condition and capacity of the existing liquids receiving station (including 2-15,000 gal storage hoppers) for potential reuse.
Anaergia High Solids Mixing: Anaergia proposed fitting Digester No. 5 with three (3) high-solids mixers. Anaergia’s high solids mixer is employed to effectively move material with in digesters, even in viscous applications such as 100% food waste organics processing as proposed for Digester 5. A submersible propeller mixer with gear less direct drive motor, Anaergia’s mixer boasts the highest efficiency in class, deliv ering effective mixing, dynam ic control, and adjustable positioning. Anaergia’s mixers deliver the highest mixing standard in the market, guaranteeing 90% volume above critical velocity thus maximizing gas yield, solid destruction, and digester stability. The proposed mixers will be key to restoring service in Digester 5 and providing effective mixing for 100% food waste digestion, maximi zing organic loading, volatile solids reduction and therefore biogas pr oduction. Anaergia mixers reduce O&M by resuspending grit, preventing stratification, and enabling access via the service box without taking digesters out of service.
The complete scope of work to retu rn Digester 5 to service would be ev aluated during development. Based on site observations and information provided by the City, we understand that Digester 5 is currently connected to feed lines and digester gas collection systems, but must be reintegrated into the heating loop for complete operations. Preliminary analysis indicates Digester 5 has sufficient capacity for the proposed organic loading, however, this would be re-confirmed during development along with the capacity of existing gas collection and flares for expected biogas production.
Digestate produced from Digester 5 would be managed with the remainder of RWQCP biosolids, as discussed below.
Figure 2: Rendering of Base Scope Phase 2 Solids Handling Facilities City of Riverside 7
RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
Enhanced Scope: During development, Anaergia recommends evaluation of co-digesting in existing Digesters 1-5 to maximize food waste capacity, biogas production, and rev enue generation potential via f ood waste tip fees and RNG sales. Based on Anaergia analysis and information provided by the City, there is currently excess digestion capacity in Digesters 1-4 which could be used to accommodate additional food waste for co-digestion. Anaergia’s Omnivore® high- solids digestion system can be employed to further in crease digestion capacity and accommodate more viscous, high- solids food waste. The platform combines Anaergia’s industry leading submersible propeller mixers with robust thickening systems to triple solids loading capacity and biogas production in existing digesters. Omnivore uses pre-thickening or recuperative thickening to reduce the amount of unnecessary liquid in the digester, increasing solids retention time (SRT) while reducing hydraulic retention time (HRT). This creates additional volume for increased sludge loading, or co-digestion of food waste. Anaergia’s proprietary high-efficiency submersible mixers are utilized to ensure proper mixing is maintained in the much more viscous high-solids conditions.
Based on maximum organic loading rates (OLR), Anaergia anal ysis indicates that up to 800 tpd liquid food waste (15% TS) (or approximately 400 tpd f ood waste cake at 30% TS) could be received, polished, and co-digested with current sludge flows across all five digesters – effectively quadr upling biogas production from t he Base Scope. Food waste receiving would also be informed by impact on RWQCP effluent quality and ability to maintain permitted discharge limits, specifically for TDS. (In Scenario 1, RWQCP is expected to remain within NPDE S discharge limits based on information provided in Addendum 1.)
To complement Base Scope upgrades at the existing liquids receiving station, Anaergia proposes to locate the expanded receiving facilities within the currently unused RWQCP Co gen Building, including addit ional redundant receiving and offloading stations, polishing system s, and buffer tanks. Two or three day s of storage would be recommended at the proposed loading rate. Polishing will remove residual contamination from the feedstock to prevent introduction of grit and plastics to the digesters, and produce a consistent feed stock quality that is clean, homogenized, and pumpable. Use of Figure 3: Rendering of Enhanced Scope Food Waste Receiving Facilities in RWQCP Cogen Building City of Riverside 8
RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
the Cogen Building to house the expanded receiving
infrastructure will facilitate odor control, residuals management, and traffic control to mitigate operational and aesthetic impact of additional feedstock delivery vehicles on the RWQCP. The building is an excellent candidate fo r these facilities as it is fully enclosed and features roll up doors and high ceilings with limited obstruction.
The expanded receiving facilities are proposed to be compatible with either merchant liquid tanker trucks of food waste as well as deliveries of OREX™-extruded organic cake via end-dump
truck, if supported by the City. Anaergia’s OREX technology is widely used by solid waste haulers in California to extract food waste from mixed solid wast e supporting organics landfill diversion requirements. The OREX press provides certainty in feedstock supply, as the input is existing and continuous supply of municipal solid waste and source separated organic waste required by California law 6%to be diverted from landfills.
Anaergia has relationships with all major solid waste haulers in Southern California and currently serves more food waste digestion in Southern California than any other entity, to ensure RWQCP receives a robust and reliable supply of feedstock to support maximum revenue generation for the City. As such, Anaergia is confident in our ability to consistently source these volumes of high-quality feedstock through our diverse hauler partners. We would also propose to conduct a market sounding during development to formally survey known feedstock suppliers and identify additional potential sources given project specifics.
Digestate Management (Phase 2)
Anaergia proposes to design, construct, and operate a bioso lids thermal processing facilit y at RWQCP, comprised of biosolids dryers and Anaergia’s proprietary pyrolysis technology. This technology has been deployed at Anaergia’s nearby Rialto Bioenergy Facility (RBF) in Rialto, CA. The propos ed process generates Class A biochar – a high-value, nutrient- rich, and carbon-sequestering fertilizer material which can s upport Project revenue generation. The biochar is free of contaminates of emerging concern (C ECs) such as PFAS, micro-plastics, and pharmaceuticals. Further, the process dramatically reduces the mass of the digestate (by up to 90%), minimizing handling, hauling, and management costs.
The proposed facility would be comprised one (1) belt dryer and one (1) pyrolysis system. The facility of would receive dewatered digestate from the RWQCP dewate ring facility. Incoming biosolids shou ld range from 24% to 30% for drying.
Anaergia understands that the City’s dewatered biosolids are typically 15 to 18% TS. Anaergia would work with the City during development to evaluate operati onal changes and upgrades to the City’s dew atering facilities to increase solids content of dewatered biosolids. If necessary, dewatering c apital improvements and/or O&M services could be provided through the P3. Alternatively, blending of dried biosolids with dewatered biosolid s can cost-effecitvely increase overall solids content to required levels for thermal processing. The fa cility would provide the City with a robust onsite digestate management capability to convert 100-150 tpd digestate (including digestate from 100 tpd inbound food waste) to biochar.
A truck loadout system – similar to the existing dewatering building’s cake loadout system – would be provided for biochar Securing a reliable supply of high-quality food
waste to meet biogas production targetsAnaergia
offers access to a network of feedstock providers
throughout Southern California to ensure food waste
is reliably supplied to the Project. Anaergia would
explore opportunities to expand its existing
partnership with Waste Management (WM), a
franchise hauler within Riverside County and
surrounding regions. Opportunities to be explored
include committed project feedstock to the project,
and installation of Anaergia’s Organics Extrusion
(OREX™) Press at WM’s Moreno Valley Transfer
Station. Anaergia has successfully worked with WM
to install an OREX line at WM’s Sun Valley Recycling
Park in Los Angeles, processing commercial source
separated organics (SSO) and municipal solid waste
(MSW). The recovered organics from WM’s Sun
Valley are hauled to RBF, via a committed feedstock
agreement between WM and A naergia. Similarly,
see Appendix B for a letter of support to provide
feedstock from regional waste hauler Universal
Waste Systems, Inc. (UWS).
City of Riverside 9 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
offhauling. The proposed facilities deliver a reliable biosolids management solution to the City to “control their own destiny,” reducing exposure to volatile markets, changing regulations, and dependence on third-party haulers.
Biochar generated at the facility can be marketed to support further revenue sharing with the City, in contrast to other digestate management technologies (i.e., gasification) wh ich do not generate marketable fertilizer end-product.
Specifically, the biochar may be transported approximately 20 miles to Anaergia’snearby Anaergia Nutrients facility, which would blend and bag biochar into a premium fertilizer product fo r agricultural use. Anaergia would be responsible for all transportation, marketing, and distribution of the biochar produced at the RWQCP thermal processing facility.
Enhanced Scope: Anaergia’s modular systems provide flexibility in design to accommodate indigenous biosolids, future load growth, additional organic feedstock, as well as regional biosolids treatment for other local municipalities, if desired by the City. To accommodate the increased digestate associ ated with the Enhanced Scope, an additional modular belt dryer would be installed at the proposed digestate management facility. The additional dryer would provide sufficient drying capacity and mass reduction for the increasedfood waste digestate to be processed via the proposed single pyrolysis unit.
Additional Scope Enhancements to Be Investigated
There are a number of value- add enhancements which Anaergia proposes inve stigating to complement the Base and Enhanced Scenarios. Beyond these investigat ions, anticipated site investigations and due diligence to be completed is described in Section G.
Figure 4: Rendering of Enhanced Scope Digestate Management City of Riverside 10 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
Offsite Digestate Management Services: In addition to onsite digestate management services, Anaergia can also uniquely offer failsafe biosolids thermal conversion services at Anaergia’s nearby RBF. Less than 15 miles away, RBF can provide interim drying and pyrolysis serv ices to the City during project development and construction, or in the event of downtime once the proposed RWQCP di gestate management facility is operational. (Anaergia would maintain responsibility for hauling biosolids from RWQCP to RBF.) A naergia can also offer the City guaranteed capacity for long- term biosolids thermal conversion services at RBF under a regular service agreement, should the City find offsite processing services preferable to an onsite facility.
Regional Biosolids Processing: In the Base Scenario, the proposed drying and pyrolysis facilities may have excess thermal capacity. While this capacity would be leveraged in an Enhanced Scenario, should food waste receiving remain limited to 100 tpd, the digestate managem ent facility could receive and process Class B digested biosolids from other regional biosolids generators. This would result in added tip fee and biochar sale revenue for the City, support economies of scale, maximize asset utilization, and support regional organics diversion and beneficial reuse goals.
Dewatering Facility Services: If desired by the City, Anaergia can provide dewatering services, taking on O&M of the existing dewatering facilities, and investigate any necessary upgrades or enhancements to the primary Centrisys system to best accommodate the increase in food waste digestate and m eet desired solids content for digestate to be thermally processed. Many of Anaergia’s P3 project include capital improvements beyond the central scope of work. We find such an approach is efficient to roll in these relatively minor upgrades to already on going permitting, financing, construction, and O&M services. Further, improving dewatering operations woul d directly benefit the Proj ect by providing reliable, consistent digestate feedstock to the drying and pyrolysis systems. c. P3 Entity Information
The respondent Anaergia Services, LLC (Anaergia) would be the P3 entity and prime contractor for the Project. Anaergia holds a main office located at 705 Palomar Airport Road, Suite 200, Carlsbad, CA 92011 USA. Anaergia maintains a branch office at 2030 S Tryon St., Suite 3G, Charlotte, NC 28203. The primary proposal contact is Margaret Laub, Project Development Manager. She may be reached via email at [email protected] or phone at (703) 593-4403.
Anaergia is a Delaware limited liability company (LLC) whose ultimate parent company is Anaergia Inc., a publicly traded Canadian company that has developed, implemented, and operated a suite of tu rnkey solid organic waste recycling facilities and anaerobic digestion (AD) solutions for over 25 years. With a proven track record of delivering solid waste, wastewater, and beneficial reuse projects on four continents and its portfolio of proprietary technologies and vertically integrated structure, Anaergia Inc.’s solutions create value to its partners in the form of landfill diversion, renewable energy, high-quality fertilizers, and clean water. Anaergia Inc. and its subsidiaries like Anaergia are uniquely positioned to provide unmatched solutions in the most pressing organics resource recovery challenges, as exemplified by their 1,700 worldwide references. Anaergia has brought together a talented team of professionals in process engineering, finance, plant operations, and manufacturing who strive to fulfill the company’s mission of combatting climate change through innovative organics management practices and renewable energy production.
Anaergia has developed a strong portfolio of biogas and RNG projects with over a dec ade of experience designing, constructing, financing, and operating anaerobi c digestion facilities with municipal wastewater treatment plants such as RWQCP. Anaergia’s unparalleled RNG expertise includes Calif ornia’s first wastewater co-digestion to pipeline RNG project with VVWRA. Recipient of the 2022 Distinction Award fo r Wastewater Project of t he Year at the Global Water Awards, Anaergia’s RBF is the largest facility supplying RNG in California, generating up to 3,500 scfm biogas for injection of 985,000 MMBTU of carbon-negative RNG to the SoCal Gas pipeline. Anaergia also developed, delivered, and operates digestion and bioenergy facilities in Southern California for the City of Escondido and East Valley Water District wastewater plants. Anaergia offers the City global expertise with deep local know-how.
City of Riverside 11 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
Further, Anaergia has substantial exper ience delivering system and service solu tions for management of residual solids from AD. Anaergia’s expertise ranges from direct land application of digestate, dewatering of digestate, drying, and pyrolysis of municipal solids, as well of marketing and sale of resultant fertilizer products such as biosolids Biochar. Anaergia has a portfolio of over 220 patents granted or pending, with 12 specifically related to pyrolysis of biosolids.
Anaergia has been developing biosolids pyrolysis technology for almost a decade from lab-scale, to pilot-scale, to demonstration-scale, culminating in the commercial-scale facility at RBF – the largest biosolids pyrolysis facility in North America. Anaergia’s drying an d pyrolysis process removes all contaminates including micro-plasti cs, physical contaminates, PFAS, pharmaceuticals, etc. from the biosolids to non-detectable levels.
To deliver a best-value an d high-quality project to the City, Anaergia has teamed with W.M. Lyles Co. (Lyles) as General Contractor for project construction, to complement Anaergia’s in-house process design and operations expertise. Lyles has been constructing water/wastewater/waste-to- energy infrastructure projects for 77 years and is a recognized California self- performance leader. Its reput ation for bringing value and innovation to the wastewater industry has provided us with numerous opportunities to engage in waste-to-energy projects with A naergia. Over the past 15 years, its involvement in the renewable energy sector has resulted in the construction of multiple projects including Anaergia’s RB F, the largest project of its kind in North America, and recently the VVW RA Biogas Project, both of which produce RNG that’s been upgraded and pr essurized then injected into the local utility pipeline. Lyles’ team of seasoned professionals bring significant experience in both constructing and upgr ading biogas facilities for clients throughout California, such as Anaergia’s RBF and Anaergia’s VVWRA RNG facility. Lyles’ extensive self-performance capabilities, with over 750 long-time craft employees located throughout California translate into a unique capacity to achieve on-time completion, with high-quality outcomes, at a lower cost than competitors. Headquartered in Fresno, with major office locations in Temecula, Bakersfield, and Rocklin, Lyles can deliver this project efficiently utilizing its deep bench of local and r egional resources. As the largest water/wastewater infrastructure company in California with bonding limits of $1B - $2B aggregate, Lyles has a reputation for delivering high-quality, safety- centered, timely construction projects for their clients, including 10 successful projects with the City of Riverside.
The proposed partnership between Anaergia and Lyles (“Anaergia Team”) will capitalize on the joint success of three (3) completed projects and over $200M in delivered organic waste- to-energy projects of similar scope, size and complexity in Southern California. This proven arrangement is a testament to the effective dynamic and trusted rela tionships between both firms, forged over the course of multiple projec t deliveries since 2015. The strategic collaboration leverages both firms’ complementary organics-to-energy expertise while maintaining a streamlined project team to facilitate clear engagement and provide accountability with the City. We hope to continue this Local Team with Global Expertise
Anaergia’s main office is just 85 miles
from the RWQCP site, and Anaergia
maintains its service team and
regional warehouse in Riverside.
Anaergia operati ons staff are
primarily located wi thin 15 miles of
the RWQCP at RBF, with other field
staff based out of facilities in
Victorville, CA; Highland, CA; and
Escondido, CA. Key team member,
Lyles, maintains offices in Southern
Riverside and Temecula. As such,
the Anaergia Team offers unmatched
accessibility, rapid response, and
onsite presence through the project
life. Anaergia has built relationships
throughout the region with relevant
stakeholders such as permitting
agencies, regional ut ilities, waste
haulers, offtakers, and vendors.
Figure 5: Anaergia's Southern
California Presence
City of Riverside 12 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
relationship in collaboration with the City, bringing lessons learned and a proven teaming strategy to seamlessly execute the Project, encouraging a collaborative env ironment that fosters in novation, whether providing value enhancements or efficiently navigating project obstacles.
d. Project Management Team
Anaergia has brought together a highly talented team of professionals in all stages of biogas and ADprojects, with shared experience on both an individual and collective basis. Certain areas of expertise include commercial development, siting and permitting, preliminary engineering desi gn, project financing, manufacturing, construction, and operations. The key individuals proposed for the Project Team and their qualifications are detailed in Table 1. Margaret Laub will serve as the primary point of contac t during the RFP period. Dr. Yaniv Scherson, Anaergia’s Chief Operating Officer, would be the main point of contact between the City and Anaergia duri ng project delivery, and responsible for overseeing the development and execution of the project, including financing. Andrew Dale would lead the process design for the project, including coordination with engineering subcontractors supporting detailed design. Jeremy Metts would oversee Project Management, particularly for the construction phase, and be re sponsible for completing the project on schedule and on budget. John Hutson would lead the operations team to establish and maintain successful project operations for the project term. The rest of the project team would be comprised of key individuals responsible for project and design reviews, equipment selection, and operations. Please note we expect all listed pers onnel would be able to c ontribute the level of time commitment needed to meet the requirements and objectives for the project. If these key employees are not available Anaergia would provide qualified replacements to ensure project delivery.
As discussed in Section C above, Anaergi a proposes to team with Lyles for proj ect construction and installation. Since 2015, Anaergia and Lyles have jointly delivered more than $200M in organics-to-energy infrastructure in Southern California. For this project, Anaergia would act as the single point of contact with the City and be responsible for all tasks subcontracted to Lyles. Anaergia would maintain responsibility for management of the construction tasks through clearly defined points of contact with Lyles. Ultimately, this P3 approach minimizes risk and generates value for the City. Lyles would also be engaged during development for expert input on constructability, project cost estimates, scheduling, and to support identification of long-lead items for early procurement.
Table 1: Personnel Summary
Name Title Responsibilities Contact Qualifications
Yaniv Scherson,
Ph.D., P.E.
Chief
Operations
Officer
Project Executive &
Project
Management
949-874-
1118
x 15 years experience
x Direct oversight on solid waste and
anaerobic digestion projects
Jeremy Metts,
MBA, P.E.
Managing
Director
Project
Management
520-461-
4027
x 15 years experience
x Managed over $300M of solid waste
projects
Andrew Dale,
P.E.
Director,
Application
Engineering
Engineering and
Environmental
Review / Permitting
714-594-
9509
x Wastewater design with >15 years
experience and >30 WWTP plant
designs with co-digestion for
organics processing
Juan Josse,
P.E. Chief Engineer Engineering
QA/QC
949-282-
9063
x 30 years experience in
municipal/industrial wastewater
treatment process design
x Multiple patent holder
City of Riverside 13 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
John Hutson Director, Plant
Operations
Operations
Management
224-500-
7712 x 5 years experience in Operations
Margaret Laub Development
Manager
Development,
Contracts, RFP
Point of Contact
703-593-
4403
x 7 years experience, including project
/ contract management
Grant Gourley
(Lyles)
Project
Executive Lyles Oversight 951-760-
4169
x 19 years wastewater experience
x Led design and construction of
$800M+ in DB/DBB projects
Sean
MacGregor, P.E.
(Lyles)
Senior Project
Manager
Lyles Project
Management
951-201-
1832
x 18 years wastewater experience
x Qualified QSD/QSP Manager
The team’s proven in-house expertise in process design, permitting construction, and operations would be complemented by additional best-value subcontractors. Anaergia prefers to identify, qualify, and onboard subcontractors following project definition to ensure the team is comprised of partners best suited to provide the necessary expertise. Specifically, Anaergia anticipates subcontracting the following:
x Environmental consultants to support site surveys, environmental review, and air permitting analysis x Engineering consultants for detailed design in key specialties (e.g., electrical, structural, civil, fire) x Construction subcontractors and equipment vendors for specialty trades (e.g., concrete reinforcing (rebar), masonry, painting and coatings, demolition, paving, electrical and instrumentation, etc.) x Biochar off-hauling during operations period to end use (e.g., Anaergia Nutrients fertilizer blending and bagging facility) e. Project Implementation & Delivery Method
Anaergia proposes a design-build-opera te-finance alternative delivery method via P3 for the Project. The P3 model provides the City with a prim ary partner to streamline the de livery of complex projects such as this, versus traditional procurement processes. Not only does the approach simplify logistics, communications, and scheduling for the City, but it also supports achievement of design intent, facilitates collaborative and transparent pr oblem solving, and encourages delivery of high-quality solutions. Specifically, maintaining the same responsible party for design, execution, and operations provides long-term accountability and inc entivizes quality of delivery. Further, the approach reduces technical, financial, and performance risk to the City and the ratepayer by conso lidating the requested services under the P3 partner. P3 partnerships are aligned in their goals of a successful resour ce recovery project, whereas multiple contractors over numerous independent scopes may not be sim ilarly incentivized. Most Anaergia proj ects, including those with Lyles, employ this approach due to significant benefits afforded to both partners.
As prime contractor and P3 entity, Anaergia would ultimately serve as the single point of accountability and responsibility to the City. Anaergia would maintain responsibility for pr oject tasks such as permitting and environmental review, construction, O&M, and third-party agreements, as well as overall project management, administration, safety, and quality control. A P3 approach requires reliable and constant communication between the partners during all phases of the project, and as such Anaergia would promote transparency with the City. RWQCP staff would be routinely engaged during design for technical support, review, and buy-in. During construct ion and long-term O&M phases, open lines of communication would promote safety and ease of access and minimize risks of accidents while maintaining RWQCP operations.
Permitting & Design
The Anaergia Team brings unique permitting expertise to the City through our unmatc hed experience comprehensively permitting organics-to-energy projects in Southern California, such as RBF and East Valley Water District Sterling Natural City of Riverside 14 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
Resource Center. Our approach incorporates proven best practices for permitting in wastewater, biogas, and food waste receiving, through collaboration with multiple permitting agenc ies. The ability to effectively secure and, perhaps more importantly, maintain permit compliance fo r these complex facilities is key to promoting uninterr upted operations and delivering maximum benefit to the City. A detailed listing of anticipated permits, environmental reviews, and governmental and regulatory approvals is provided in Section G.
Figure 6: Benefits of Partnership with Primary P3 Entity The first step in design would be to establish a conceptual design basis outlining the near-t erm and long-term potential sludge, food waste, biogas, and digestate flows. The design basis, similar to a 10% desi gn, would incorporate City requirements, site conditions, existing permit limits, and proposed project layout. This stage would verify the design basis provided in the third-party Food Waste Ev aluation TM provided in the RFP. It may incorporate the findings of a market sounding to quantify and characterize available feedstocks fro m our network of waste suppl iers and additional regional haulers. We would confirm key assumptions for developm ent, including the appropriate scope division for a phased approach, if pursued, and City appetite for future expansions.
Anaergia engages with relevant permitting agencies beginning in development and iteratively throughout design phases.
The goals of these engagements would be to (1) inform init ial design basis, cost estimates, and identify potential constraints, (2) ensure accurate preparation of permit app lications, (3) develop realisti c development and construction schedules, and (4) inform other project elements, such as O&M Plan. Our local presence not only means we have existing working relationships with representatives of relevant agencies but also facili tates in-person engagements. The ability to readily visit permitting agency offices in-person is also valuable should timelines drag and there is a need for the P3 entity to push on agency reviewers. Project schedules will reflect appropriate permitting timelines for each system, based on experience. However, mitigating permit schedule impact often remains the key challenge associated with development, as permit reviews are critical path but not controlled by the P3 entity.
Anaergia currently envisions initiation preparation of CEQA documentation immedi ately following establishment of a mutually agreeable design basis. In parallel, we would initia te development of applicable air and solid waste permitting.
This approach requires prioritization and front loading of desi gn basis definition, as shown in the schedule. To further streamline delivery, we antici pate phasing CEQA review. While the City woul d ultimately be responsible for determining approach as the lead agency, we recommend a categorical exem ption, a Negative Declarati on, or a Mitigated Negative Declaration for the Biogas scope. Meanwhile, we recommend a more rigorous Environmental Impact Report (EIR) for the Digestate Management and Digester/Food Waste scopes due to the impact on truck traffic and emissions, as well as potential for additional solid waste permits. A phased CEQA approach will allow design for the Biogas scope to progress more quickly, outside of the lengthier timelines associated with MND/EIR. Following completion of CEQA review, Anaergia would propose to submit relevant per mit documents as soon as possible, inco rporating any changes necessitated by
City of Riverside 15 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
CEQA lead agency review and public comment , as applicable. This approach prevents rework in the permitting process, while starting the clock on critical path permit reviews as detailed design and sales agreement development tasks proceed in parallel. From Anaergia’s direct ex perience and positive working relationshi p with SCAQMD, we understand typical questions, requirements, and timelines to be expected from the District – and how to answer those questions.
Generally, Anaergia recommends CEQA and permit documents reflect a reasonable maximum case scenario for a given scope or system (e.g., biogas) to avoid the need for costly revisions if systems are ups ized or operations expanded; conversely, downsizing below permit caps does not typically require amendment or present schedule impacts. Therefore, permit documents should reflect potential future expansion (e.g., the Enhanced Scope for biogas), as there is limited downside. However, additional unit systems (e.g., digestate management) would be expected to impact permitting reviews, and therefore the phased scope division is recommended.
Element Potential Considerations to be Defined
Food Waste Tons of material per day, days per week, composition, source, storage system Traffic Vehicles in/out per day, days per week, operating hours, planned routes, vehicle type Emissions Equipment ratings, criteria pollutant levels (pre/post proposed emissions control) Residuals Tons of material per day, days per week, composition, destination Odor Odor levels at sensitive receptors, based on odor modeling and prevailing winds Noise Noise level at sensitive receptors, based on proposed sound attenuation Detailed design will proceed in accordan ce with approved permit requirements, likely with a phased approach between Biogas and Solids Handling scopes. Anaergia will lead th e detailed design development based on the established and permitted design basis, in concert with the City and our team of subconsultant engineers. Anaergia’s specialized expertise as a technology integrator, process designer, and operator of similar facilities – responsible for reporting, compliance, and quality requirements – makes Anaergia the ideal partner to select best availabl e technology and lead in-house process engineering. Lyles construction and Anaergia operations personnel will be embedded within the design team to keep real- time cost estimates as the design progresses, optimize scope definition, and inform of potential constructability or operability issues to be proactively addressed through design. Specialized input from subcons ultants will address areas of key risk for efficient resolution (e.g., geotechnical conditions); Anaergia will maintain the role of engineer of record, serve as lead process/controls engineer, and provide QA/QC for standar dized and compatible designs that meet intent across all subtrades. The City will be proactively consulted for intimate knowledge of site conditions, particularly at the points of demarcation. The City will also be engaged for necessary design reviews prior to pulling building permits.
As noted, a phased design approach is currently recommended for detailed design following confirmation of design basis and regulatory constraints. Given more lim ited integration with RWQCP systems, straightforward process design, and potential for skidded and modular technol ogies, the Phase 1 Biogas scope desi gn can likely be completely more expeditiously (while accounting for fi nal expected organic loading and biogas production rates). However, careful coordination with SoCal Gas will be critical during this stage. As the largest RNG facility in SoCal Gas territory, we will leverage our knowledge of SoCal Gas interconnection procedures to inform project designs. The interconnection letter provided in Appendix C details the achievem ents of our partnership with SoCal Ga s for RBF. Based on this experience, we recommend the following best practices for engineering and design of RNG interconnection:
x Engaging with SoCal Gas to establish and account for in terconnection requirements, including utility timelines, engineering and design, and quality control standards
x Confirming early in design available pipeline capacity at the nearest interconnection point, and vice versa, the nearest interconnection point with sufficient available capacity x Identifying potential obstacles along the interconnection path (e.g., roadway intersections) City of Riverside 16 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
x Establishing clear understanding of gas quality requ irements and specifications (SoC al Gas Rules 30 and 45), and incorporating necessary desi gn elements (e.g., custom biogas conditioning train) to achieve them, as well as gas quality monitoring, alerts, and fail-safes
x Providing sufficient redundancy and gas storage to accommodate scheduled or unscheduled system downtime x Developing commissioning plans in collaboration with operators to reflect intended normal and emergency operations and ensure necessary functionality
Further, Anaergia understands t hat the City has completed interconnecti on engineering studies with SoCal Gas in preparation for a future RNG project. Anaergia would closely review and validate completed utility studies. We will seek to prevent rework and incorporate existing doc umentation to the extent possible, while ensuring our agreement with utility findings, to streamline delivery. However, based on the sele cted design basis (e.g., the Enhanced Scope), the existing studies may no longer be applicable at the proposed gas flows.
Capturing Available Funding Opportunities Anaergia understands the City’s desire to maximize economic value and return for the ratepayer. To this end, Anaergia would seek to capture maximum tax benefits and incentives, including California Alternative Energy and Advanced Transportation Financing Authority (CAEATFA), the federal Investment Tax Credit (ITC) under the Inflation Reduct ion Act (IRA), and potential future CalRecycle organics processing grant funds, in addition to those CalRecycle funds already secured. Anaer gia has a history of success in capturing over $45M in California grants for both Anaergia a nd client facilities, including from the California Energy Commission and CalRecycle, as well as CAEATFA tax exclusions and DO E grants. Throughout the proj ect life we would monitor applicable opportunities to offset pr oject costs or fund value enhancements. Anaergia’s expertise in identifying applicable programs, securing funds, and complying with various program des ign and reporting requirements is complemented by Lyles’ direct experi ence working within and accounting fo r the applicable requi rements of such funding programs, including federal requirements for domestically sourced material.
CalRecycle As of submission, Anaergia has been involved in seven (7) successful CalRecycle grants. As a result, we are intimately familiar with CalRecycle program staff, requirements and timelines, and reporting procedures. We are confident in our ability to evaluat e and recommend the best approach to demonstrate compliance with the City’s previously awarded grant and secure $2M in reimbursement to further increase project economic value. If selected, we can support the City in scoping opportunities associated wi th the Project to submit for additional funding under CalRecycle’s Organics Grant Program, Cycle 7, which is accepting applications in spring 2023.
IRA ITC The new IRA enables an enormous cost savings to the City through a potential reimbursement of up to 40% of the project capital cost associated with biogas production and utilization (including ancillary Solids Handling scope). If desired by the City, Anaergia would provide assistance and lead efforts to ensure the Ci ty maximizes benefit of the federal credit from the IRS. Critically, the ITC is available only for projects which break ground prior to the end of 2024.
The City will benefit from Anaergia’s extensive development experience to streamline design and initiate construction well in advance of this deadline, as demonstrated in Se ction I: Schedule. The propos ed phased approach will further support the ability to initiate construction before the end of 2024 and reduce risk of impacting eligibility. Project schedules would be developed and executed with this critical milestone in mind.
City of Riverside 17 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
Construction
Following completion of detailed design (i n collaboration with Lyles and specialty consultants/contractors), Anaergia would lead construction management while Lyles is responsible for project construction as subcontractor to Anaergia. Lyles would self- perform the majority of the work, subcon tracting to a combination of qualified best- value and low-bid subcontractors and vendors for specialty trades. While construction subcontractors would generally be managed di rectly by Lyles during construction, Anaergia would remain responsible for overall construction management and delivery of quality work.
When working at active facilities, such as RBF, VVWRA, and the RWQCP, efficiency in delivery and project scheduling is essentia l to limiting impact to facility operations and performance. Maintaining seamless plant operations during construction will be the Anaergia team’s highest priority. Anaergia and Lyles understand the importance of efficiently constructing a project while mitigating impacts to ongoing operations and maintaining safety for all personnel at the project site. To achieve this, the Anaergia team will draw upon experience delivering successful projects with the City of Riverside, and can hit the ground running with a deep understanding of the RWQCP operational regime and requirements through Lyles. We propose to use a combination of AutoCAD and Navisworks (3D Model) to graphically represent each system interference and develop a detailed work plan prior to any critical installation.
The Anaergia team would produce a construction sequencing plan that minimizes plant disr uption and prioritizes safety.
We would carefully build plant shutdowns into the schedule, conduct pre-construction task meetings, install temporary workarounds, orchestrate tie-ins and cutovers with RWQCP st aff, and identify anticipated ac cess and utility disruptions early on. Anaergia proposes to use relatively clear and open par cels at the RWQCP to limit construction footprint and reduce impact on plant operations (see Figures 1-4). In particular, the proposed RNG facility location is relatively removed from the main plant, which will support expedited delivery with minimal impact on the RWQCP and facilitate our proposed phased approach. We will seek to coordinate materials deliveries and consolidate laydown locations near proposed areas of work (e.g., the proposed digestate management facilities west of the dewatering facilities) to reduce cross-traffic through the RWQCP. As discussed in Section I: Schedule, purchase orders fo r long-lead pieces of eq uipment would be issued upon transition from design to construction to mitigate potential construction delays.
Based on our experience working at active facilities, and our understanding of the requested Project, we recommend the following best practices a to limit the impact of construction on RWQCP operations:
x Maintain existing biogas flare and dewatering facilities unt il respective scopes are complete, operational, and ready for transition
x Conduct RNG upgrades in parallel with flare upgrades (if required), both sized to provide sufficient redundant capacity for anticipated end-state organics loading (particularly for Enhanced Scenario) x Limit points of interface and tie-in between RWQCP systems and Anaergia systems x Establish transition/ramp up plans and clear lines of demarcation between RWQCP and Anaergia x Identify open and accessible construction laydown areas x Employ packaged, modular, and skidded systems to the extent possible (e.g., Anaergia BUG™) x Include constructability as factor in equipment selection (e.g., Anaergia PSM mixers, which can be installed more quickly and with less impact to digesters versus other mixing technologies) Leveraging Lyles’ Experience
with the City As the
construction partner for the
Anaergia team, Lyles’ seasoned
professionals will bring
significant experience gained in
both constructing and
upgrading biogas facilities for
clients throughout California,
such as Anaergia’s RBF as well
as 10 projects with the City and
RWQCP. The City will benefit
from Lyles’ lessons-learned and
experience delivering projects
with Anaergia that are similar in
scope and size to this project.
Having a common Partner will
accelerate the learning curve.
City of Riverside 18 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
x Enforcement and prioritization of established safety plans, for all personnel onsite, to ensure productivity is achieved while maintaining the highest standards of safety and prevent lost time As discussed further in Section I: Schedule, we current ly propose a phased approach to construction. Biogas upgrades would be initiated first. We would seek to sequence Phase 2 site preparation to begin as construction winds down for Phase 1, to prevent multiple mobilizations/demobilization and take advantage of crews as they become available.
We expect to maintain engagement with permit agencies duri ng construction for onsite testing and the conversion from permit to construct to permi t to operate. We will keep agency representat ives updated as construction progresses to coordinate necessary reviews. By helping agencies forecast when their review will be needed, we can improve the likelihood of timely resource availability. Engagements w ill be supported by Anaergia’s EH&S Manager fo r the Western US, based out of Carlsbad, CA.
Commissioning
Commissioning is an essential part of the construction
phase to promote not only proper start-up and seamless
ramp up but also to support long-term operations and
achievement of design int ent to meet performance
guarantees and revenue expectations. The Anaergia
team has dedicated commissioning engineers on staff,
responsible for development and proper execution of
commissioning plans. Commissioning plans are
prepared in advance, in collaboration with the
construction partner, Anaergia operators, and plant staff (i.e., RWQCP) to reflect intended operations and ensure necessary functionality (e.g., sequences of operations, necessary data collection fo r performance monitoring
and reporting, etc.) is provided. Commissioning support is included in our subcontra cts to ensure that the
construction partner and any additional subcontractors
are responsible for seeing commissioning through to
completion and delivery of an appropriately functioning project. Anaergia’s performance guarantees as outlined in the co ntract will be verified, leveraging third-party testing as needed. Should any performance metrics not achieve minimum requirements, we will investigate the issue to identify the root cause – whether controls or equipment based – and rectify the in order to achieve the guaranteed performance.
Biogas: Commissioning of biogas facilities would demonstrate succe ssful internal operations – including ability to meet gas quality, safety requirements, and appr opriate integration with RWQCP syst ems – prior to expanding to utility interconnection tests. Under a phased approach, RNG facilitie s would be operational and successfully injecting to the SoCal Gas grid as new digestion and food waste receiving is brought online. Additional performance monitoring would be provided during Phase 2 start up to ensure continued achievement of desired operations at the biogas station as digester gas production increases.
Digester No. 5 Rehabilitation & Food Waste: During Phase 2 commissioning, Anaergia recommends ramping up in food waste digestion on a weekly basis, increasing operating or ganic loading rate (OLR) by a proposed 10% each weekly following digester seeding. During ramp up, we propose monitoring pH, VFA/alkalinity ratio, biogas methane concentration, and other parameters on a weekly basis ; Anaergia can provide these services along with recommended adjustments to Figure 7: Anaergia’s Rialto Bioenergy Facility Digests 700 TPD Food Waste and 300 TPD Digestate into 3,500 scfm
Biogas for Pipeline RNG Injection to SoCal Gas
City of Riverside 19
RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
the ramp up based on the actual measurements to ensure digester stability and adequate adaptation time. This approach was taken for both VVWRA and EVWD SNRC.
Digestate Management: Similarly, a ramp up plan is proposed for co mmissioning of digestate management systems to ensure appropriate material quality is being achieved. Anaergia operators would coordinate with biosolids haulers (either the City’s existing contractors, or Anaergia’s proposed hauling partners) to ensure reliable management and off-hauling of both digestate and biochar through the commissioning period. Ultimately, the systems would be tested for achievement of design parameters at full loading. It is currently expected that digestate management systems would come online and be commissioned last, so all testing would reflect increased solids production associated with food waste processing.
City Involvement: City staff would be informed in advance of commissioning schedules and invited to witness commissioning activities. While Anaergia proposes to operate all new systems, if desired by the City, Anaergia can support training of RWQCP staff in key areas.
Operations
Anaergia’s involvement from the initial stages will facilitate the developm ent of both a O&M plan that aligns closely with design intent and promotes reliable achi evement of performance guarantees. From our experience as owner/operator, Anaergia “designs to own” and understands that early-stage investment pays dividends in operations and helps to reduce performance risk. As in construction, safety remains of the utmost priority.
Staffing Plan: We currently propose four (4) to five (5) dedicated singl e-site Anaergia employee operators for the Base Scope: one (1) RNG operator, one (1) attendant for food waste operations, and two (2) to three (3) digestate management facility operators. Each operat or would be dedicated full-time resources for Project operations, and directly managed by the Director of Operations. Anaergia proposes to evaluate use of the existing storage building adjacent to the dewatering facilities to house on-site staff and spare parts. (It is our understanding that the City is open to making this space available.) Onsite staff would be supported by Anaergia’s Service Team, based out of Carlsbad, CA, comprised of service technicians, process engineers, environmental health and safety (EH&S) specialists. A naergia maintains an operator network in Southern California that lives and wo rks throughout the region – including at RBF, VVWRA, EBF, and SNRC – and are available to fill-in as needed. Service teams are cross tr ained such that most team me mbers are capable of directly supporting various system operations. Food waste receivingcommerc ial operations would be supplemented with Anaergia office-based staff for hauler onboarding and pre-qualification, coordination, scheduling, and management, as well as invoicing and accounting to support City sales agreements. While subject to change, the proposed staffing plan is expected to be sufficient to manage the Enhanced Scope, if pursued by the City. $QDHUJLDVHHNVWRKLUHPHPEHUVRILWV 6RXWKHUQ&DOLIRUQLDRSHUDWLRQVWHDPORFDOO\SDUWLFLSDWLQJLQO RFDOMREIDLUVDVZHOODVYRFDWLRQDOWUDLQLQJSURJUDPV Data Management: Anaergia offers in-house process automation and controls integration capabilities. Alternatively, we can work with the City’s existing integrator to integrate SCADA systems into the plant-wide SCADA. Secure SCADA monitoring will enable monitoring by the City as well as remote operations by the Anaergia Service Team. For example, Anaergia has one (1) FTE operator supporting VVWRA biogas operations, supported by back-of-house remote monitoring and control, based out of RBF. SCADA data will inform daily operations, however, remote operations capability is intended to be supplemental to the proposed onsite staff discussed above. Prescribed performance monitoring can be designed to collect relevant parameters to not only demonstrate compliance with contractual performance requirements, if applicable, but also to facilitate regular permit reporting and ensure continued compliance to prevent violations or fines, and ensure uninterrupted operations. SCADA would be integrated with computerized maintenance management systems (CMMS) for targeted, data-driven maintenance in addition to scheduled preventative maintenance as outlined in the O&M plan. SCADA will be employed for Serformance monitoring and to validate achievement of performance guarantees, as applicable.
Coordination of Activities with City Operations : Anaergia’s on-site operators are intended to integrate with but not impede the daily activities of RWQCP staff during normal operations. We foster positive working relationships and establish City of Riverside 20 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
clearly defined communication channels between City and Anaergia staff with single points of prime contact.
Communication trees will be established and regularly updated with contact informa tion to ensure that appropriate staff are able to be reached as needed. In addition, formal feedba ck channels system could be est ablished, if desired, to facilitate communication from boots-on-the-ground staff. Desi gn files will be kept current with established management protocol to facilitate long-term O&M and knowledge management – for Anaergia and City staff alike.
Truck traffic associated with food waste receiving and biochar offhauling will likely require the greatest level of coordination to ensure seamless operations by Anaergia and JPA staff. Anaergia will strive to design a vehicle access that provides adequate queuing and turnaround space to lim it impact of truck traffic on RWQCP operations. Should applicable solid waste permits/exemptions stipulate material handling or other requirements, compliance measures will be clearly defined to be upheld by all relevant staff. Limi ted interaction or potential impact is expected during normal operations of Biogas and Digestate Management facilities, beyond the identified points of demarcation.
Regular maintenance outages would be planned for off-peak hours and communicated well in advance to City staff.
Anaergia staff will share preventative maintenance schedules with City staff managers and provide notice (with expected impact and duration) in advance of planned activities. In the event of emergency repairs or corrective maintenance, notice will be provided as soon as possible. Information sharing will be facilitated by City SCADA monitoring capabilities. Due to the interface between Project and RWQCP systems, proactive communication is a two-way street, and the same notice would be requested of City staff for maintenance or unplanned events.
Third-Party Agreements: Following their establishment during development stages, Anaergia would be responsible for managing (1) food waste feedstock supply agreements, (2) offtake agreements for RNG and bioc har produced at the RWQCP, and (3) negotiated sales agreement s with the City. This would include registration of products produced for applicable environmental attributes.
Figure 8: From Left to Right, VVWRA Food Waste Receiving, High-Solids Digester Rehabilitation, & Biogas RNG
f. Capital Improvement Plan
Redacted – Trade Secrets
f. Capital Improvement Plan
Redacted – Trade Secrets
f. Capital Improvement Plan
Redacted – Trade Secrets
City of Riverside 24 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
g. Project Permitting Requirements
Anaergia is responsible for securing relevant permits and regulatory approvals for each of its projects, including implementation of best available control technology (BACT), design considerations, and reporting practices to reach and maintain approval. For this reason, Anaergia engages with relevant permitting and revi ew authorities beginning in development and throughout design to proactively identify re quirements, confirm compli ance, and submit relevant documentation. As discussed in Section I, it is essential to account for permitting review and approval periods in the project schedule. We also define reporting requirements in design to streamline operational data collection, reporting, and ensure continued permit compliance throughout the project life.
Anaergia is experienced in engaging directly with the relevant agencies for this proj ect. Specifically, Anaergia’s RBF is a permitted solid waste facility under CalRecycle with an active Large Volume In-Vessel Digestion Facility Permit. Anaergia currently has two permitted projects within SCAQMD jurisd iction: RBF and Sterling Natura l Resources Center (SNRC).
Within California, we have also permitted projects under San Diego Air Pollution Control Dis trict (APCD) (for City of Escondido wastewater biogas cogen eration) and Mojave Air District (VVWRA RNG upgrading and pipeline interconnection). Anaergia was responsible for all permitting associated with each of these projects.
Based on our understanding of the project scope, our propos ed approach to permitting and governmental approvals is outlined below. The timing of each task is provided in Section I: Schedule.
Due Diligence: One of the earliest tasks to be completed in deve lopment, Anaergia would conduct due diligence of any parcels to be leased by Anaergia from the City or otherwise used for the Project. This includes a Phase One Environmental Site Assessment (ESA) to evaluate previous uses and current or historical property and potential impacts on the underlying soil or groundwater which may pose an env ironmental or health risk. Second, A naergia would conduct site surveys to establish parcel boundaries. A geotechnical survey would establish physical properties of the underlying soil in the area of the proposed facilities to confirm stability, drainage, and necessary structural considerations.
Design Review & Building Permits: The RWQCP is primarily zoned Public Facilities (PF) Zone, which is appropriate for the current and proposed Solids Handling activities. As such , work in these areas would be expected to be exempt from City Design Review processes. However, the proposed location for the Biogas facilities is zoned industrial under the Business and Manufacturing Park (BMP) Zone. Anaergia currently envisions that Biogas site plans would be submitted to the City following Phase 1 CEQA to complete required Design Review process, before ultimately securing relevant Building Permits from the City.
NPDES: Anaergia currently envisions leveraging the RWQCP’s existing NPDES permit for both treated effluent discharge and stormwater. Stormwater management would be expected to fall under the facility’s NPDES general permit. During development, Anaergia would confirm that proposed RWQCP operations would rema in within permit effluent discharge requirements (i.e., TDS). Anaergia may pr opose to adjust the design basis with respect to organic feedstock to reduce nutrient loading and maintain compliance with discharge lim its. (While sidestream treatm ent may also be evaluated, we generally find it to be cost-prohibitive.)If co-digestion is pursued as part of the Enhanced Scope, food waste receiving and co-digestion activities would be permitt ed under the NPDES permit. In this scenar io, Anaergia would notify the Regional Water Quality Control Board (RWQCB) of the proposed co-digestion activities and, if deemed necessary by the RWQCP, work with them to update the NPDES permit accordingly to incorporate required standard operating procedures (SOPs) for materials handling.
Hazardous Materials Management: During detailed design, Anaergia would confirm expected total quantities of regulated substances onsite, considering existing RWQCP chemical st orage. If any regulated subst ances are expected to exceed defined threshold quantities, Anaergia w ould engage with the Certified Unified Pr ogram Agency (CUPA) to confirm the expected Risk Management Plan (RMP) Pr ogram Level under the California Acci dental Release Prevention (CalARP) City of Riverside 25 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
program. The Program Level dictates associated material control requirements and additional necessary RMP elements based on the regulated substances presen t. If required, the RMP would be developed by Anaergia and submitted to the U.S. EPA and local CUPA, as applicable depending on the project-specific regulated substances. RMP would be updated at least every five (5) years throughout t he project life. However, Anaergia would seek to limit chemical storage to below threshold levels, to the extent practicable. The Riverside County Department of Environmental Health Hazardous Materials Branch is the designated CUPA for this project. In any sc enario, Anaergia would also develop a Hazardous Materials Business Plan (HMBP) for submission u nder CUPA via the CalEPA California En vironmental Reporting System (CERS) Portal.
CalOSHA Process Safety Management (PSM) : Methane gas is one such regul ated substance. CalOSHA PSM requirements cover facilities with over 10,000 pounds of digester gas (including but not limited to the methane component of biogas). This is generally associated with RMP Program 3. Neither the Base Scope or Enhanced Scope is not expected to meet the threshold quantity for digester gas based on current analysis and therefore would not be considered a covered process under CalOSHA. However, PSM implications of overall facility size and biogas production would be verified during initial development to ensure design of Phase 1 biogas facilit ies incorporates applicable PS M requirements, if required.
Anaergia’s RBF is a covered process under CalOSHA PS M, and Anaergia successfully designed, implemented, and manages all relevant requirements.
Phase 1: Biogas (Biogas Conditioning, RNG Upgrading, & Interconnect) CEQA: City of Riverside is lead agency for CEQA. During develop ment, Anaergia would confirm with the City as lead agency the proposed approach. The project phase may qualify for a Categorial Exemption, Negative Declaration (ND), or Mitigated Negative Declaration (MND). Anaergia would complete a CEQA Initial Study (IS) prio r to either a ND or MND.
City of Riverside is CEQA lead agency.
Air Permits: SCAQMD would be responsible for issuing air permits for the project. Permit to Construct would be secured during development for the following syst ems: BUG thermal oxidizer. On-site te sting with SCAQMD is required for conversion to Permit to Operate foll owing completion of construction. Thes e permits would be maintained through the project life. Anaergia would lead regular reporting to SCAQMD.
Interconnection: During development, Anaergia would lead each phase of the interconnection process with SoCal Gas (under SoCal Rules 30 and 45): (1) interconnection screening study, (2) preliminary engi neering study, and (3) detailed engineering study. The interconnection agreement would be executed during development and Anaergia would coordinate with SoCal Gas during construction to tie into the utility pipeline, ensuring all necessary approvals and requirements have been secured in a timely manner to maintain project schedule.
Phase 2: Solids Handling (Digestate Management & Rehabilitation of Digester No. 5) CEQA: City of Riverside is lead agency for CEQA. Anaergia pr oposes to complete an IS and EIR for Phase 2 during development given expected impact on tru ck traffic and facility emissions. During development, Anaergia would confirm this approach with the City, as an ND or MND may also be suitable based on final project scope. CEQA documentation would include analysis of impacts on emissions, odor, noise, and traffic.
Air Permits: SCAQMD would be responsible for issuing air permits for the project. Permit to Construct would be secured during development for the following systems:
x Digestate Management: dryer and pyrolysis burners; thermal oxidizer x Rehabilitation of Digester No. 5: in-vessel digester
x Enhanced Scope: receiving facility odor control; flares, if necessary for increased biogas flows City of Riverside 26 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
On-site testing with SCAQMD is required for conversion to Permit to Operate following completion of construction. These permits would be maintained through the project life. Anaergia would be responsible for regular reporting to SCAQMD.
In-Vessel Digester Permit: County of Riverside Department of Environmental Health is the local solid waste enforcement agency (LEA). An in-vessel digestion permit is expected to be required for food waste mono-digestion in Digester 5 as part of the Base Scope. Quarterly reporting would be required throughout operations. At the current design basis of 100 wtpd, the project is anticipated to fall under the registration permit tier for medium-volume in-vessel digestion facilities. However, an increase in food waste digestion design basis at the RWQC P may require a full solid waste facility permit for large- volume in-vessel digestion facilities. Alternatively, if co-digestion is pursued as part of the Enhanced Scope, the RWQCP would likely be exempt from solid waste permitting; the food waste receiving and co-digestion activities would instead be permitted under the existing NPDES permit, as discussed above. h. Life Cycle Cost
Anaergia has completed a life cycle cost analysis based on information provided by the City and assumptions informed by direct experience designing, constructing, and operating multiple facilities of similar size, scope, and complexity throughout Southern California. In particular, the analysis draws on Anaergi a’s actual installation and operating costs, tip fees, and sales agreements. Based on the analysis, we conclude that the Base Scope project has strong fundamentals and presents an opportunity to generate new revenue streams for the City and offset diges tate management cost s. Meanwhile, the Enhanced Scope will significantly improve project economics, increase revenue potential for the City, and drive greater progress towards meeting the City’s numerous goals. As demonstrated, the Enhanced Scope offers improved economies of scale, achieving an outsized improvement in payback and life cycle value versus the increased investment.
Key assumptions include:
x Biogas availability for RNG based on current RWQCP solids loading and Fuel Cell Energy PPA requirements x $35/MMBTU RNG value, based on RIN/LCFS values and executed offtake agreements x $32/ton food waste tip fee, based on So uthern California market rates, ex pected inflation, SB1383 / regulatory drivers, and Class A digestate m anagement services. Anaergia would perform a market sounding during development to confirm market rates for the specific project location and feedstock requirements x $600/ton biochar, based on Southern California market research and product nutrient market value Other key assumptions will be discussed during the interview. A detailed pro forma economic analysis would be established and maintained throughout development to inform initial design basis, sales agreement development, and overall project financeability. The pro forma would incorporate City-reviewed and -approv ed assumptions, particularly surrounding the terms of the sales agreements and site-specific conditions.
Scenario 1 Scenario 2
Unit Base Scope Enhanced Scope
Upfront Capital Cost $ (39,970,000) (84,751,000)
Grant $ 2,000,000 2,000,000
a. TOTAL CAPEX INVESTMENT $ (37,970,000) (82,751,000)
RNG Revenue $/yr 4,010,000 28,887,000
Digestate Management Service Fee Revenue $/yr 2,717,000 2,717,000 Digestate Biochar Revenue $/yr 3,485,000 7,378,000
Food Waste Tip Fee Revenue $/yr 1,739,000 20,868,000 b. TOTAL PROJECT REVENUE (20 yr avg) $/yr 11,951,000 59,850,000 City of Riverside 27 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
O&M Cost $/yr (6,414,000) (18,832,000)
CIP Plan $/yr (1,190,000) (2,524,000)
Lease Payments to City $/yr (120,000) (120,000)
c. TOTAL PROJECT EXPENSES (20 yr avg) $/yr (7,605,000) (21,356,000) d. PROJECT OPERATING INCOME (20 year avg)
d = b – c $/yr $ 4,347,000 38,494,000
Project Net Present Value (20 Year, 4%) $ $ 17,500,000 398,566,000 e. Project Simple Payback
e = a / d Years 10.7 3.1
i. Project Schedule
A proposed schedule for delivery of the Base Scope delivery is provided in this section. The Anaergia Team’s proficiency in establishing and maintaining schedul es stems in part from our direct ex perience successfully delivering numerous pipeline RNG and solids handling projects through multiple delivery methods. We are deeply familiar with the time required to thoroughly complete each task through project development and construction, as well as common obstacles that cause slippage. This robust experience allows us to both accurately forecast schedules as well as proactively work to avoid potential delays and build in efficiencie s. In development, we engage our projec t execution team (including Lyles management personnel) in creating a schedule to leverage their on-the-ground perspec tive. Further, our nimble project teams are structured to flex resource s as necessary to ensure important ta sks are completed and deadlines kept. Our strong schedule control is demonstrated by our successful delivery of greenfield construction of RBF – across approximately 6 acres – in just over tw o years, as well as the completion of VVWRA pipeline RNG facilities construction and interconnection in just 15 months from contract executi on. Both projects were delivered at operational facilities and constructed with a phased approach to front-load RNG operations and subsequent ly expand AD and solids handling capacity, and were delivered on schedule with no significant impact to system operations or performance.
Approach to Phasing
Based on understanding of the scope and site conditions, A naergia proposes a phased approach to delivery following establishment of the design basis and conf irmation of project sizing (including anticipated total feedstock receiving and biogas/digestate production):
x Phase 1 Biogas: Biogas conditioning, RNG upgrading, and SoCal Gas pipeline interconnection x Phase 2 Solids Handling: Digester No. 5 rehabilitation , feedstock receiving upgrades, digestate management drying and pyrolysis, and other ancillary digestate management or dewatering upgrades as appropriate Anaergia anticipates that Phase 1 Bi ogas can be developed and constructed more expeditiously than Phase 2 Solids Handling. Therefore, a phased approach supports the more rapid generation of revenue from RNG, to allow the realization of project benefit while longer duration tasks associated with the Phase 2 scope are completed. It also supports compliance with federal ITC eligibility requirements to break ground before 2025. This approach is supported by several key considerations and critical path tasks:
x Interconnection Expertise: Gas pipeline interconnection is especially critical as it is necessary for generating project revenue, starting operations, and yet largel y relies on third-party timelines. Anaergia has successfully worked with SoCal Gas to implement RNG pipeline interconnection at RBF. We will lever age our knowledge of the process, established relationships with the utility, and previous lessons learned to efficiently accomplish interconnection.
Further, the City has already completed interconnection st udies with SoCal Gas, which can support advancing from design to implementation of RNG more rapidly.
City of Riverside 28 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
x CEQA Review : Pipeline RNG facilities typically qualify for categorical exemption, a Negativ e Declaration, or a Mitigated Negative Declaration. For exam ple, Anaergia’s pipeline RNG facility at VVWRA received a ca tegorical exemption under Class 1, 2, 3, and 29. Meanwhile, the Phase 2 scope is anticipated to require more rigorous environment al review under CEQA. As a result, environmental review for the Phase 1 scope may be completed more quickly than for the Phase 2 scope, if conducted separately.
x Air Permitting : Based on our experience permitting RNG and Solids Handling facilities in SC AQMD, we anticipate that RNG facility permitting would be accomplished more rapidly than permitting for the proposed drying and pyrolysis systems. This is primarily due to the greater number of potential emissions sources, including multiple burners, associated with drying and pyrolysis systems. Further, while Anaergia has successfully permitted both drying and pyrol ysis in SCAQMD (one of the nation’s most stringent air quality districts), pyrolysis remains a newer technology and therefore we anticipate a lengthier review. Permitting the RNG facility independently will support more straightforward emissions controls and a more ex peditious permitting process. In general, front-loading air permitting emissions support proactive identification of crucia l design elements necessary for compliance and operations.
x Solid Waste Permitting: While there are waste permit implications for Phase 2, it will not be required for the Biogas scope. Therefore, delivering Phase 1 Biogas separately decouples dependence on solid waste permit evaluations and processing.
x Long-Lead Equipment: Most scope elements proposed for digestate management often have long-lead times, while skidded equipment and other elements of biogas utilization may be more readily available. Proceeding with RNG scope as Phase 1 allows for positive progress to be m ade while key pieces of equi pment are manufactured and shipped.
Approach to Development Schedule
The development schedule will be s tructured to prioritize the following tasks: establishing City approval of the project design basis; confirmation of favorable project economics, acceptable third-party agreements, and City sales agreements; ensuring constructability and interoperability with RWQCP systems; and securing of necessary environmental approvals (CEQA) and permits (air, solid waste). We currently envision that early-stage development, including site investigations, 10% design, feasibility study, and ec onomic analysis, would enco mpass the complete project scope including Phase 1 Biogas and Phase 2 Solids Handling. Phasing may begin upon the initiation of parallel CEQA and permitting processes, with final design for each Phase being initiated as its respective approvals are secured. This approach supports delivery of a comprehensive overall project while supporting devel opment schedule management by reducing dependencies between various scope approvals.
In particular, efficiently achieving consensus on the design basis is necessary to initiate critical path CEQA and permitting reviews and maintain the development schedule. To this end, the provided proposed schedule front-loads due diligence, data collection, and requirements definitions. To prevent rework and maintain the schedule, information included in environmental reviews (i.e., CEQA) and permitting documentation should be confirmed and finalized by all stakeholders prior to submission. Anaergia would initiate preparation of permit submittals in parallel with CEQA studies, so that we are Successful Phased Approach at RBF A
phased approach was empl oyed by Anaergia
at RBF, where pipeline RNG facility reached
operations first via a streamlined delivery
process. While RNG was injected to the SoCal
Gas grid, Anaergia completed delivery of the
biosolids drying and pyrolysis systems. In fact,
biosolids were accepted for drying to Class A
while the pyrolysis system was installed.
Completing dryer commissioning and ramp up
during pyrolysis construction supports a
smoother pyrolysis st art-up and streamlines
construction and operations overall. Further,
this approach enabled the achievement of
Class A biosolids sooner than had dryer and
pyrolysis installation taken place concurrently.
City of Riverside 29 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
prepared to immediately submit permit applications following CEQA approval , incorporating any necessary revisions resulting from the environmental review. In our experience, this approach facilitates critical path environmental review to support overall project timelines, while proactively identifying any additional design elements and constraints that must be considered in final designs.
As discussed in Section E: Project Implementation & Deli very Approach, the development schedule will be structured to achieve start of construction before 2025 to ensure the Project is eligible for federal biogas ITC benefits.
Approach to Construction & Commissioning Schedules
The Anaergia Team has the know-how to leverage the flexibility of alternative delivery methods to effectively navigate unexpected challenges and proactively avoid common obstacles. We provide the attached schedule to provide a general sense of our approach to sequencing. Construction durations are based in part on actual durations from completed projects wi th similar scope (i.e., food waste receiving, biogas conditioning, RNG upgrading, digestate processing), experienced partners (i.e., Lyles), and third-party stakeholders (i.e., SCAQMD). We employ critical path method scheduling to ensure continual progress while providing the flexibility to de dicate additional resources as needed to high-priority tasks. Through early identification of critical path tasks, we can proactively anticipate and work to mitigate potential delays. This approach helps to identify the best opportunities to gain time in project delivery.
The construction schedule will include final design/engineering, procurement, construction, commis sioning, and start-up activities.
During construction, our team will hol d weekly meetings with City staff to review schedule logic and activity durations. These meetings will focus on projected production rates and tra ck success. We will review potential bo ttlenecks and items to coordinate with RWQCP staff in advance of the work, allowing construction personnel to efficiently schedule tasks around and with daily activities of the functioning plant. (In Phase 2 construction, this will include avoiding disruption to Phase 1 facilities, as well.) We will organize the schedule so ar eas of work can be carved out of the baseline schedule and analyzed with the City – we then compare the project budget against the schedule for complete alignment. Our team will seek to employ the following strategies:
x Assuming a phased approach is pursued, carefully coordinate construction of the respective Phases to avoid multiple mobilizations, demobilizations, and take advantage of available crews and equipment to shift to Phase 2 tasks (including site preparation) as Phase 1 work winds down or shifts to commissioning. x Incorporate positive float. Proactively account for challenges such as inspection or daily rework. x Leverage Anaergia off-the-shelf equipment and programming capabilities to reduce third-party uncertainties. x Specify skidded, modular, and packaged equipment as appropriate for “plug and play” installation. x Complete programming, testing, and other activities offsite to the extent possible. x Begin sizing and procurement of electrical equipment and re lays immediately following PO issuance for long-lead items; in parallel, in-house proc ess and controls teams size all motors, connected plant loads and engage panel builders to being PLC design and procurement.
x Use constructability reviews during development to help identify potential value-add changes. x Initiate permitting processes in development to secure Permit to Construct and avoid delays.
Schedule Recovery A crucial part of
developing a successful CPM schedule is
identifying schedule risks and mitigation
measures early. We will take every measure
to ensure critical activities are identified and
our proactive schedule eliminates the need for
time recovery. However, in the event recovery
techniques are needed, they will be tailored
specifically to the delay. Proactive recovery
techniques include: (1) Resequencing of
construction activities; (2) Assignment of
additional construction resources capitalizing
on the vast local self-perform resources of our
team; (3) Staggering start times/shifts for
different trades (e.g., install rebar in early AM
and electrical conduit during late PM); and (4)
Focusing resources on critical path items.
City of Riverside 30 RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
x Initiate procurement processes and approvals for long lead items following 30% design. x Developing commissioning plans with City and Anaergia O&M teams to capture the fu ll scope of testing needed to confirm intended operations and necessary functionality, preventing rework during start up. x Schedule commissioning and demobilization such that crews are readily available for necessary punch list items. This includes commissioning of individual sy stems as they are completed, prior to system-wide comm issioning for final acceptance.
Schedule Control through Vertical IntegrationDuring a recent project in Warsaw, NC, extended lead times for electrical equipment caused by supply chain disruptions posed delays. To proactively mitigate this, Anaergia’s in-house automations and control team expedited completion of the plant IO list, sourced an off the shelf PLC through the Anaergia Singapore office, and is integrating IO components from three different manufacturers, allowing for the delivery of Anaergia’s major electrical components months in advanc e of the client’s revised schedule. Anaergia’s unique in-house controls programming capability means reliable delivery at a reduced cost due to our existing library of applicable programs.
ID Task Name Duration Start Finish Predecessors
1 CityCouncilApproval&NTP 1day Tue4/4/23 Tue4/4/23 2 ExecuteSubcontractwithLyles/GC 1day Wed4/5/23 Wed4/5/23 1 3 ConceptualDesign 90days Wed4/5/23 Tue8/8/23
4 DataCollection&Review 10days Wed4/5/23 Tue4/18/23 1 5 CityRequirementsDefinition 10days Wed4/5/23 Tue4/18/23 1 6 AlternativesAnalysis 40days Wed4/19/23 Tue6/13/23 4 7 10%Design(BFD&ConceptSiteLayout) 40days Wed6/14/23 Tue8/8/23 6,17 8 Contracts 670days Wed4/19/23 Tue11/11/25
9 GasInterconnectionAgreement 100days Wed8/9/23 Tue12/26/23 10 PreliminaryScreening 2mons Wed8/9/23 Tue10/3/23 7 11 PreliminaryEngineeringStudy 40days Wed9/6/23 Tue10/31/23 133,73 12 InterconnectionContractDevelopment 40days Wed11/1/23 Tue12/26/23 11 13 Offtake 119days Thu5/29/25 Tue11/11/25
14 RNGOfftake 90days Thu5/29/25 Wed10/1/25 212FF
15 BiocharOfftake 90days Wed7/9/25 Tue11/11/25 227FF 16 Feedstock 170days Wed4/19/23 Tue12/12/23
17 MarketSounding 40days Wed4/19/23 Tue6/13/23 5
18 FoodWasteFeedstockAgreement(s) 90days Wed8/9/23 Tue12/12/23 17,7 19 CityAgreements 59days Thu8/21/25 Tue11/11/25
20 BiogasSalesAgreement 30days Thu8/21/25 Wed10/1/25 212FF 21 BiosolidsProductSalesAgreement 30days Wed10/1/25 Tue11/11/25 227FF 22 FoodWasteTippingFeeAgreement 30days Wed10/1/25 Tue11/11/25 227FF 23 DueDiligence 42days Wed8/9/23 Thu10/5/23
24 ESA 22days Wed8/9/23 Thu9/7/23 7
25 GeotechnicalSurvey 20days Fri9/8/23 Thu10/5/23 24 26 Permits 266days Fri10/6/23 Fri10/11/24 25
27 Phase1CEQA 44days Fri10/6/23 Wed12/6/23
28 CategoricalExemptionPreparation 30days Fri10/6/23 Thu11/16/23 25,7 29 CityReview 14days Fri11/17/23 Wed12/6/23 28
30 Phase1AirPermit 100days Thu10/26/23 Wed3/13/24 31 PrepareApplication 40days Thu10/26/23 Wed12/20/23 29FF+10days 32 SubmitAirPermit 0days Wed12/20/23 Wed12/20/23 31 33 AirPermitReview 60days Thu12/21/23 Wed3/13/24 32 34 PermittoConstruct 0days Wed3/13/24 Wed3/13/24 33 35 Phase2CEQA 151days Fri10/6/23 Fri5/3/24
36 InitialStudyPreparation 85days Fri10/6/23 Thu2/1/24 24 37 City/PublicCommentPeriod 21days Fri2/2/24 Fri3/1/24 36 38 FinalCEQADevelopment 40days Mon3/4/24 Fri4/26/24 37 39 CEQASubmittedtoStateClearinghouse 5days Mon4/29/24 Fri5/3/24 38 40 Phase2AirPermit 160days Mon3/4/24 Fri10/11/24
41 PrepareApplication 40days Mon3/4/24 Fri4/26/24 37 42 SubmitAirPermit 0days Fri4/26/24 Fri4/26/24 41
43 AirPermitReview 120days Mon4/29/24 Fri10/11/24 42 44 PermittoConstruct 0days Fri10/11/24 Fri10/11/24 43 45 Phase2SolidWastePermit 160days Mon3/4/24 Fri10/11/24 46 PrepareApplication 40days Mon3/4/24 Fri4/26/24 37 47 SubmitSolidWastePermit 0days Fri4/26/24 Fri4/26/24 46 48 SolidWastePermitReview 120days Mon4/29/24 Fri10/11/24 47 49 PermittoConstruct 0days Fri10/11/24 Fri10/11/24 48 50 NPDESWastewater 60days Tue12/26/23 Tue3/19/24
51 SubmitApplication 0days Tue12/26/23 Tue12/26/23 134FS+10days,144 52 ApplicationReview 60days Wed12/27/23 Tue3/19/24 51 53 PermittoConstruct 0days Tue3/19/24 Tue3/19/24 52 54 NPDESStormwaterͲGeneralPermit 51days Fri10/6/23 Fri12/15/23 55 StormwaterMgmt.PlanDevelopment 20days Fri10/6/23 Thu11/2/23 7 56 SubmitPlan 1day Fri11/3/23 Fri11/3/23 55
57 PlanReview 20days Mon11/6/23 Fri12/1/23 56
58 PermittoConstruct 10days Mon12/4/23 Fri12/15/23 57 59 HMBP&RMP 61days Wed11/1/23 Wed1/24/24
60 PlanDevelopment 20days Wed11/1/23 Tue11/28/23 132,72 61 SubmitPlan 1day Wed11/29/23 Wed11/29/23 60
62 PlanReview 30days Thu11/30/23 Wed1/10/24 61
63 PlanApproval 10days Thu1/11/24 Wed1/24/24 62
64 Phase1CityBuildingPermits 68days Wed10/11/23 Fri1/12/24 65 DesignReview 20days Wed10/11/23 Tue11/7/23 72
66 BuildingPermits 30days Mon12/4/23 Fri1/12/24 71
67 Phase2CityBuildingPermits 89days Wed11/1/23 Mon3/4/24 68 DesignReview 20days Wed11/1/23 Tue11/28/23 132
69 BuildingPermits 30days Tue1/23/24 Mon3/4/24 131
70 AllPermitsforConstructioninHand 0days Fri10/11/24 Fri10/11/24 27,30,50,54,35,40, 71 Phase130%DesignDevelopment 174days Tue4/4/23 Fri12/1/23 72 ProcessEngineering 45days Wed8/9/23 Tue10/10/23
73 PFD 15days Wed8/9/23 Tue8/29/23 7
74 P&ID 15days Wed8/30/23 Tue9/19/23 73
12/20
3/13
4/26
10/11
4/26
10/11
12/26
3/19
10/11
1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 2023 2024 2025 2
ID Task Name Duration Start Finish Predecessors
75 MajorEquipmentGADrawings&Specs 15days Wed9/20/23 Tue10/10/23 74 76 EquipmentList 5days Wed9/20/23 Tue9/26/23 74
77 InstrumentList 5days Wed9/20/23 Tue9/26/23 74
78 ValveList 5days Wed9/20/23 Tue9/26/23 74
79 IOList 5days Wed9/20/23 Tue9/26/23 74
80 ProcessControlNarrative 10days Wed9/20/23 Tue10/3/23 74 81 Layout&Model 10days Wed10/11/23 Tue10/24/23
82 SiteLayoutin2D 5days Wed10/11/23 Tue10/17/23 75 83 Biogas3DModel 5days Wed10/18/23 Tue10/24/23 82
84 Electrical 166days Tue4/4/23 Tue11/21/23
98 Controls&Network 136days Tue4/4/23 Tue10/10/23
102 BuildingPlumbing 20days Tue4/4/23 Mon5/1/23
106 FireSuppression 151days Tue4/4/23 Tue10/31/23
110 ProcessMechanical 174days Tue4/4/23 Fri12/1/23
115 Civil 32days Wed10/18/23 Thu11/30/23
125 Stuctural 35days Wed10/11/23 Tue11/28/23
130 Phase130%DesignComplete 0days Fri12/1/23 Fri12/1/23 72,81,84,98,102,10 131 Phase230%DesignDevelopment 119days Wed8/9/23 Mon1/22/24 132 ProcessEngineering 60days Wed8/9/23 Tue10/31/23 133 PFD 20days Wed8/9/23 Tue9/5/23 7
134 P&ID 20days Wed9/6/23 Tue10/3/23 133
135 MajorEquipmentGADrawings&Specs 20days Wed10/4/23 Tue10/31/23 134 136 EquipmentList 10days Wed10/4/23 Tue10/17/23 134 137 InstrumentList 10days Wed10/4/23 Tue10/17/23 134 138 ValveList 10days Wed10/4/23 Tue10/17/23 134
139 IOList 10days Wed10/4/23 Tue10/17/23 134
140 ProcessControlNarrative 15days Wed10/4/23 Tue10/24/23 134 141 Layout&Model 30days Wed11/1/23 Tue12/12/23
142 SiteLayoutin2D 10days Wed11/1/23 Tue11/14/23 135 143 Digestate3DModel 20days Wed11/15/23 Tue12/12/23 142 144 AD&FoodWaste3DModel 20days Wed11/15/23 Tue12/12/23 142 145 Electrical 70days Wed10/4/23 Tue1/9/24
159 Controls&Network 65days Wed10/4/23 Tue1/2/24
163 HVAC 29days Wed12/13/23 Mon1/22/24
167 BuildingPlumbing 29days Wed12/13/23 Mon1/22/24
173 FireSuppression 49days Wed11/15/23 Mon1/22/24
177 ProcessMechanical 45days Wed11/15/23 Tue1/16/24 182 Civil 32days Wed11/15/23 Thu12/28/23
192 Architectural 29days Tue12/12/23 Mon1/22/24
201 Stuctural 40days Wed11/1/23 Tue12/26/23
211 Phase230%DesignComplete 0days Mon1/22/24 Mon1/22/24 201,192,182,177,1 212 Phase1Construction 478days? Mon12/4/23 Wed10/1/25 213 LongͲLeadItemProcurement 90days Mon12/4/23 Fri4/5/24 71 214 60Ͳ100%Design 60days Mon12/4/23 Fri2/23/24 71
215 SitePrep&Structural 10days Mon2/12/24 Fri2/23/24 214FF 216 BelowGradePiping 10days Mon2/26/24 Fri3/8/24 215 217 BelowGradeConduit 10days Mon3/11/24 Fri3/22/24 216 218 FRP&CureConcreteSOG,EquipmentPads 25days Mon3/25/24 Fri4/26/24 217 219 InstallEquipment 40days Mon4/29/24 Fri6/21/24 218 220 MechanicalPiping&Appurtenances 15days Mon6/24/24 Fri7/12/24 219 221 InstallElectricalGear,Pull,Terminate 20days Mon7/15/24 Fri8/9/24 220 222 GeneralStartͲUp&Testing 5days Mon8/12/24 Fri8/16/24 221 223 Commissioning 15days Tue9/2/25 Mon9/22/25 222,237 224 Punchlist 5days Tue9/23/25 Mon9/29/25 223
225 PermittoOperate 1day? Tue9/30/25 Tue9/30/25 224 226 Phase1ConstructionComplete 1day Wed10/1/25 Wed10/1/25 225 227 Phase2Construction 471days Tue1/23/24 Tue11/11/25 228 LongͲLeadItemProcurement 120days Mon10/14/24 Fri3/28/25 40 229 60Ͳ100%Design 150days Tue1/23/24 Mon8/19/24 131 230 SitePrep&Structural 30days Tue8/20/24 Mon9/30/24 229 231 BelowGradePiping 25days Tue10/1/24 Mon11/4/24 215,230 232 BelowGradeConduit 25days Tue11/5/24 Mon12/9/24 231 233 FRP&CureConcreteSOG,EquipmentPads 40days Tue12/10/24 Mon2/3/25 232 234 InstallEquipment 60days Tue2/4/25 Mon4/28/25 233 235 MechanicalPiping&Appurtenances 30days Tue4/29/25 Mon6/9/25 234 236 InstallElectricalGear,Pull,Terminate 45days Tue6/10/25 Mon8/11/25 235 237 GeneralStartͲUp&Testing 15days Tue8/12/25 Mon9/1/25 236 238 Commissioning 1mon Tue9/2/25 Mon9/29/25 237
239 Punchlist 2wks Tue9/30/25 Mon10/13/25 238
240 PermittoOperate 1mon Tue10/14/25 Mon11/10/25 239 241 Phase2ConstructionComplete 1day Tue11/11/25 Tue11/11/25 240 242 Phase2OperationsStart(FoodWasteRampUp) 1day Thu10/2/25 Thu10/2/25 226 243 CompleteOperationsStart 1day Wed11/12/25 Wed11/12/25 241 12/1
1/22
1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 2023 2024 2025 2
City of Riverside
RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
Appendix A: Process Flow Diagram (CONFIDENTIAL)
City of Riverside
RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
Appendix B: Letters of Support
Southern Division - Temecula Office
42142 Roick Drive
Temecula, CA 92590
Telephone (951) 973-7393
Fax (951) 698-3031
www.wmlyles.com
An Equal Opportunity Employer
Corporate Office: 525 W. Alluvial Avenue, Suite C, Fresno, CA 93711 Telephone: (559) 441-1900 Bakersfield (661) 387-1600 I Fresno (559) 268-1540 I Rocklin (916) 375-1833 California Contractor’s License No. 422390
January 31, 2023
Attention: Yaniv Scherson, Ph.D., P.E.
Chief Operating Officer
Anaerg ia Services, LLC
705 Palomar Airport Road, Suite 200
Carlsbad, CA 92011
Subject: City of Riverside
Request for Proposals for Professional Services
Riverside Regional Quality Control Plant
Biogas and Digestate Management Upgrading Facilities
This letter affirms the role of W. M. Lyles Co.’s (Lyles) as a key subcontractor to Anaergia Services LLC (Anaergia) or its affiliated entity for purposes of Anaergia’s proposal submitted in response to the City of Riverside Request for Proposals for Professional Services for Riverside Regional Quality Control Plant Biogas and Digestate Management Upgrading Facilities.
Lyle’s scope of work within the project, if awarded to Anaergia, is intended to include the following elements, as further detailed in Anaergia’s proposal:
• Project development and design support
• Project construction and commissioning
Lyles further affirms it intends to perform its scope of work as required to accomplish the objectives of Anaergia’s proposal, and will exclusively cooperate with Anaergia in implementing its obligations under separate agreement.
We appreciate our shared history of partnering with Anaergia to successfully deliver organic waste-to-energy projects and look forward to the opportunity to work together again. If you have any questions or comments about the information presented in this letter, please do not hesitate to call me at 559-647-6650.
Sincerely,
________________________________ ________________________________ Joe Lawrence Yaniv Scherson
Vice President, Alternative Delivery Manager Chief Operating Officer W. M. LYLES CO. ANAERGIA SERVICES LLC
City of Riverside
RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
Appendix C: Interconnection Letters
8360 S. Durango Dr., LVD-106 │ Las Vegas, NV 89113
PO Box 98510 │ Las Vegas, NV 89193-8510
fax 702.365.5904│ www.swgas.com
February 3, 2022
SoCal Biomethane LLC
705 Palomar Airport Road, Suite 200
Carlsbad, CA 92011
To Whom It May Concern:
RE: Victor Valley Wastewater Reclamation Authority (VVWRA) Renewable Natural Gas: Interconnector’s Completion of Pre-Injection Testing, Commencement of Commercial Operations and Monetary Incentive Program
This letter is to inform of SoCal Biomet hane LLC compliance with Southwest Gas Corporation’s (Southwest Gas) California Tariff Rule No. 22 – Standard Renewable Gas Interconnections to the Utility’s Pipeline System. (Rule 22)1 in relation to the VVWRA RNG project.
SoCal Biomethane has met the following requirements per Southwest Gas’ Rule 22:
x Southwest Gas has reviewed the lab sample results from pre-injection testing which were collected on January 5, 2022 & January 12, 2022. Both samples were evaluated and comply with the gas quality specifications in Section K of Southwest Gas’
x Pre-injection testing requirements have been satisfied per Southwest Gas’ Rule 22, Section K.5.b.i & K.5.e.
x Per Rule 22 Section G.1.b, Commissioning Gas Quality Verification is complete and commercial operation of the Interconnector’s RNG facilities at VVWRA may commence with an effective date of February 2, 2022.
Additionally, to be eligible for the Monet ary Incentive Program, SoCal Biomethane must comply with the requirements set forth in Rule 22, Section I.5.d., which include:
x Operational flow requirement – RNG must flow for a minimum of 30 days out of a 40- day testing period, within the minimum and maximum measurement range of the meter.
x SoCal Biomethane must provide written notic e to Southwest Gas at least two business days in advance of the commencement of the 40-day testing period. The written notice must include the start and end date of the 40-day testing period.
1 Southwest Gas Rule No. 22 may be found here https://www.swgas.com/1409181853334/RULE_22- --SRGIA_Eff-Feb-19-2021.pdf.
Please direct the written notification and/or any questions to my attention.
Sincerely,
Maria Rushing
Industrial Gas Engineer, Energy Solutions
702-249-4655
[email protected]
Laura Bullock
Project Manager
Energy Markets
Southern California
Gas Company
555 West 5th Street
Los Angeles, CA 90013
Mail Stop GT20C3
Office No. (213) 231-8974
Mobile. No. (213) 321-9602
Via email: [email protected]
Wednesday, February 24, 2021
Mr. Andrew Dale
Rialto Bioenergy Facility, LLC
5780 Fleet Street, Suite 310Carlsbad, CA 92008
Subject: Start-Up Gas Quality Testing and Point of Receipt Commissioning Results Dear Mr. Dale:
This letter serves to inform Rialto Bioenergy Facility, LLC (“RBF”) that on January 12, 2021, in accordance with and subject to the requirements set forth in Southern California Gas Company’s (“SoCalGas”) Tariff Rule No. 45 (“Rule 45”), SoCalGas:
1. Performed start-up gas quality and equipment startup testing for RBF’s Rialto Bioenergy Facility located in Bloomington, California based on RBF’s deliveries within the minimum and maximum hourly measurement range of the meter; 1 and
2. Verified (a) RBF’s compliance with gas quality specifications set forth in Rule 45, 2 as measured with the onsite equipment and the initial periodic constituents of concern sample analyses, and (b) proper operation of SoCalGas’ point of receipt gas quality monitoring equipment and control system.
This letter is delivered to RBF pursuant to its request and is solely for its information.
Although SoCalGas has made reasonable efforts to ensure all information is correct and consistent with its applicable tariffs, SoCalGas makes no representations as to the appropriateness, accuracy, or completeness of this letter. To the extent there is any conflict between SoCalGas’ tariffs and this letter the tariffs will govern. SoCalGas (including its employees, agents, and affiliates) assumes no liability with respect to, or for damages arising from, the use of this letter by RBF or any third party. Any use of, or reliance on, this letter by RBF or any third party is at such entity’s sole risk.
Should you have any questions or concerns, please do not hesitate to contact me.
Sincerely,
Laura Bullock
Project Manager – Energy Markets
1 15 MScf/hour minimum and 120 MScf/hour maximum per the Interconnection Agreement, dated November 20, 2019, by and between SoCalGas and RBF.
2 https://www2.socalgas.com/regulatory/tariffs/tm2/pdf/45.pdf Sincerely,
Laura Bullock
City of Riverside
RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
Appendix D: Scenario 1 Base Scope Renderings
City of Riverside
RFP No. 2222 – Riverside Regional Water Quality Control Plant Biogas and Digestate Management Upgrading Facilities
Appendix E: Scenario 2 Enhanced Scope Renderings