Capital Improvement Program VOL. And Implementation

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City of Riverside Public Works DepartmentUPDATE OF THE INTEGRATEDMASTER PLAN FOR THE WASTEWATERCOLLECTION AND TREATMENT FACILITIESVOL. 7Capital Improvement Programand Implementation

CITY OF RIVERSIDE UPDATE OF THE INTEGRATED MASTER PLAN FOR THE WASTEWATER COLLECTION AND TREATMENT FACILITIESVolume Table of ContentsVolumes and Chapter TitlesVolume : Executive SummaryVolume : Basis of PlanningChapter : IntroductionChapter : Regulatory and Climate Change ConsiderationsChapter : Population, Loading, and Flow ProjectionsChapter : Basis of Cost EstimatesChapter : Organizational ReviewVolume : Wastewater Collection SystemChapter : Introduction and BackgroundChapter : Planning Area CharacteristicsChapter : Flow Monitoring ProgramChapter : Collection System Facilities and Hydraulic ModelChapter : Planning Criteria and Design FlowsChapter : Regulatory Review and SSMP Gap AnalysisChapter : Capacity Evaluation and Proposed ImprovementsChapter : Lift Station Condition AssessmentChapter : Sewer Pipeline R&R ProgramChapter : Capital Improvement ProgramChapter : Collection System Odor ControlVolume : Wastewater Treatment SystemChapter : Existing FacilitiesChapter : Summary of Planning StudiesChapter : Process Design and Reliability CriteriaChapter : Preliminary TreatmentChapter : Primary TreatmentChapter : Secondary TreatmentChapter : Tertiary TreatmentChapter : Advanced Water TreatmentChapter : DisinfectionChapter : Environmental ReviewChapter : Capital Project StudiesVolume : Solids Treatment and HandlingChapter : Existing FacilitiesChapter : Summary of Planning StudiesChapter : Process Design and Reliability CriteriaChapter : Solids Production and ThickeningChapter : Solids DisposalVolume : Regional Water Quality Control Plant Condition Assessment ResultsVolume : Capital Improvement Program and ImplementationVolume : Financial Plan and User Rates and FeesVolume : Additional Special Collection System StudiesChapter : IntroductionChapter : Sewers and Manholes in Close Proximity to Waters of the USChapter : SSO Reporting and ResponseChapter : Laboratory Compliance AuditChapter : Chemical Root Control SOPChapter : SSMP UpdateFINAL 95A00/Deliverables\Final Volume and Chapter TOC

ABBREVIATIONS UPDATE OF THE INTEGRATED MASTER PLAN FOR THE WASTEWATER COLLECTION AND TREATMENT FACILITIES CITY OF RIVERSIDEAbbreviations Falpha factorμg/Lmicrograms per literA/A Trunk SewerAcorn/Arlanza Trunk SewerAACEAdvancement of Cost EngineeringAADFannual average daily flowAAFaverage annual flowABAssembly can Concrete InstituteACPasbestos cement pipeACSAmerican Community SurveyACT treatment trainActivated treatment trainADCalternative daily coverADEQArizona Department of Environmental QualityADFaverage daily flowADWFaverage dry weather flowAFYacre‐feet per yearAPADacid‐phase anaerobic digestionAQMDAir Quality Management DistrictAQMPAir Quality Management PlanARBCalifornia Air Resources BoardARVsair release valvesASCEAmerican Society of Civil EngineersAWTAdvanced Water TreatmentBACTbest available control technologyBCMBest Available Control Measures for Fugitive Dust SourcesBFPbelt filter pressBMPbest management practicesBNRBiological nutrient removalBODbiochemical oxygen demand‐day biochemical oxygen demandBODBPTCBest Practicable Treatment or ControlBtu/lbBritish thermal unit per poundBWFbase wastewater flowCCelsiusCaCOcalcium carbonateCarolloCarollo Engineers, Inc.FINAL eliverables\Abbreviations i

CITY OF RIVERSIDE UPDATE OF THE INTEGRATED MASTER PLAN FOR THE WASTEWATER COLLECTION AND TREATMENT FACILITIES ABBREVIATIONSCASACalifornia Association of Sanitation AgenciesCCBchlorine contact basinCCFhundred cubic feetCCIConstruction Cost IndexCCTVClosed Circuit TelevisionCDFWCalifornia Division of Fish and WildlifeCDMCamp Dresser & McKee, Inc.CECsContaminants of Emerging ConcernCEQACalifornia Environmental Quality ActCESACalifornia Endangered Species Actcfdcubic feet per daycfmcubic feet per minutecfscubic feet per secondCIPCapital Improvement ProgramCityCity of RiversideCIWQSCalifornia’s Integrated Water Quality SystemCMBCombustion SourcesCMMSComputerized Maintenance Management SystemCNGcompressed natural gasCOcarbon dioxideCODchemical oxygen rnia Stream Condition IndexCSDCommunity Services DistrictsCTSCoatings and Solventscu ftcubic feetCWAClean Water ActCWCCalifornia Water CodeCWEACalifornia Water Environment AssociationDAFdissolved air flotationDAFTdissolved air flotation thickenersdays/weekdays per weekDCRdemand‐capacity ratioDDWCalifornia Division of Drinking WaterDGdigester gasDIRDepartment of Industrial RelationsDMRdischarge monitoring reportDUdwelling unitii JUNE FINAL

ABBREVIATIONS UPDATE OF THE INTEGRATED MASTER PLAN FOR THE WASTEWATER COLLECTION AND TREATMENT FACILITIES CITY OF RIVERSIDEDWFdry weather flowEBRTempty bed residence timeECEmerging ConstituentsEDRelectro‐dialysis reversalEDUequivalent dwelling unitsEGMEmission Growth ManagementEIREnvironmental Impact ReportEnerTechEnerTech Environmental California, LLCENREngineering News RecordEPAEnvironmental Protection AgencyEQequalizationESAEndangered Species ActFFahrenheitFDAFood & Drug AdministrationFlo‐DarMarsh‐McBirney Flo‐Dar FLXCompliance Flexibility ProgramFOGfats, oils, and greasefpsfeet per secondftfeetFTEFull Time EmployeeFUGFugitive EmissionsFYfiscal yearsggramsgalgallonsGBTgravity belt thickenersGHGGreenhouse GasGISGeographic Information SystemGLGeneral Ledgergpcdgallons per capita daygpdgallons per daygpd/acgallons per day per acregpmgallons per minutegpm/sq ftgallons per minute per square feetGWIgroundwater infiltrationHShydrogen sulfideHGLhydraulic grade lineHIDHigh‐Intensity DischargehphorsepowerhrhourFINAL JUNE iii

CITY OF RIVERSIDE UPDATE OF THE INTEGRATED MASTER PLAN FOR THE WASTEWATER COLLECTION AND TREATMENT FACILITIES ABBREVIATIONShrs/dayHShours per day‐hydrogen sulfide ionHVACheating, ventilation, and air conditioningI/IInfiltration/inflowIEBLInland Empire Brine LineIEUAInland Empire Utilities Agencyin.inchiPACSInternet‐based POTW Administration and Compliance SystemIRWDIrvine Ranch Water DistrictITInformation TechnologyIWWMPIntegrated Wastewater Master Planklb/dthousand pounds per dayklbN/dthousand pounds of nitrogen per dayKPIKey Performance IndicatorkWhkilowatt hourlbspoundslbs/cfdpounds per cubic feet per daylbs/ftpounds per cubic feetLFlinear feetLIMSLaboratory Information Management SystemLMLongitudinal MotionLOTOLock Out / Tag OutLROlegally responsible officialMaster PlanIntegrated Master Plan for the Wastewater Collection and TreatmentFacilitiesMBRMembrane BioreactorMBR treatment trainMembrane Bioreactor treatment trainMCCmotor control centerMCSMultiple Component SourcesMDDmaximum day demandMDLMethod Detection LimitsMFmicrofiltrationMFRmulti‐family residentialMGmillion gallonsmg‐min/Lmilligrams per minute per litermg/Lmilligrams per litermgdmillion gallons per daymgN/Lmilligrams of nitrogen per literminminuteiv JUNE FINAL

ABBREVIATIONS UPDATE OF THE INTEGRATED MASTER PLAN FOR THE WASTEWATER COLLECTION AND TREATMENT FACILITIES CITY OF RIVERSIDEmin/hrminutes per hourML&Cmortar lined and coatedMLSSmixed liquor suspended solidsmmmillimeterMMBtumillion British thermal unitsMMBtu/hrmillion British thermal units per hourMMRPMeasurement, Monitoring and Reporting ProceduresMOBMobile Source ProgramsMPMaster PlanMPNmost probable numberMRPMonitoring and Reporting Programmslmean sea levelmVmillivoltN/Lnitrogen per literNOnitrous oxideNACWANational Association of Clean Water AgenciesNaHSOsodium bisulfiteNaOClsodium hypochloriteNASSCONational Association of Sewer Service CompaniesNECNational Electric CodeNELACNational Environmental Laboratory Accreditation ConferenceNELAPNational Environmental Laboratory Accreditation ProgramNFPANational Fire Protection AssociationNGONon‐Governmental OrganizationsNH ‐Nammonia nitrogenNOAANational Oceanic and Atmospheric AssociationNOInotice of intentNOXNitrogen oxidesNPDESNational Pollutant Discharge Elimination SystemNTUnephelometric turbidity unitO&MOperations and MaintenanceOCSDOrange County Sanitation DistrictOERPOverflow Emergency Response PlanOESOffice of Emergency ServicesOJTOn‐the‐Job TrainingORPOxidation‐Reduction PotentialP/Lphosphorus per literPACPPipeline Assessment Certification ProgramPAYGOPay‐As‐You‐GoFINAL JUNE v

CITY OF RIVERSIDE UPDATE OF THE INTEGRATED MASTER PLAN FOR THE WASTEWATER COLLECTION AND TREATMENT FACILITIES ABBREVIATIONSPDRPreliminary Design ReportPEIRProgrammatic Environmental Impact ReportPFRPProcess to Further Reduce PathogensPLCprogrammable logic controllerPOTWPublicly Operated Treatment Workppbvparts per billion by volumeppcdpounds per capita per dayppdpounds per dayppd/cu ftpounds per day per cubic feetppd/sq ftpounds per day per square feetpphpounds per hourppmparts per millionpsfpounds per square footpsipounds per square inchPTZPan‐Tilt‐ZoomPVCPolyvinyl ChloridePWSpotable water salinityPWWFpeak wet weather flowQICSQualitative Intelligence and Communication SystemR&Rrehabilitation and repairRASreturn activated sludgeRCNLDReplacement Cost New Less DepreciationRCPreinforced concrete pipeRDIIRain Derived Infiltration and InflowRDTrotary drum thickenersRECLAIMRegional Clean Air Incentives MarketRegional BoardCalifornia Regional Water Quality Control BoardRGrain gaugeRNGrenewable natural gasROreverse osmosisRPURiverside Public UtilitiesRSTrotary screw thickenersRTPRegional Transportation PlanRWQCBRegional Water Quality Control BoardRWQCPRegional Water Quality Control PlantS‐sulfide ionSARDASanta Ana River Dischargers AssociationSARTSanta Ana River TrailSBSenate Billvi JUNE FINAL

ABBREVIATIONS UPDATE OF THE INTEGRATED MASTER PLAN FOR THE WASTEWATER COLLECTION AND TREATMENT FACILITIES CITY OF RIVERSIDEsBODSoluble biochemical oxygen demandSBTsludge blending tankSCADAsupervisory control and data acquisitionSCAGSouthern California Association of GovernmentsSCAPSite Cleanup Subaccount ProgramSCAQMDSouth Coast Air Quality Management Districtscfmstandard cubic feet per minutesCODsoluble chemical oxygen demandSECAPSystem Evaluation and Capacity Assurance PlanSFRsingle‐family residentialSFYsquare feet per yearSIUSignificant Industrial UsersSLCPShort Lived Climate PollutantSLRsolids loading rateSOCStrengths, Opportunities, and ConcernsSOPStandard Operating ProceduresSORsurface overflow rateSouth StarSouth Star Engineering & Consulting, Inc.SOXSulphur oxidessq misquare mileSQRStructural Quick RatingSRFState Revolving FundSRTsolids retention timeSSstainless steelSSCSustainable Communities StrategySSMPSewer System Management PlanSSOSanitary Sewer OverflowsState Water BoardCalifornia State Water Resources BoardSWMMStorm Water Management ModelSWRCBState Water Resources Control BoardTDStotal dissolved solidsTINtotal inorganic nitrogenTKNtotal Kjeldahl nitrogenTLTMTechnical MemorandumTMDLtotal maximum daily loadTNtotal nitrogenTOCtotal organic carbonTPtotal phosphorusFINAL JUNE vii

CITY OF RIVERSIDE UPDATE OF THE INTEGRATED MASTER PLAN FOR THE WASTEWATER COLLECTION AND TREATMENT FACILITIES ABBREVIATIONSTStotal solidsTSStotal suspended solidsTSTTest for Significant ToxicityURSURS CorporationsUSACEUnited States Army Corps of EngineersUSBRU.S. Department of the Interior Bureau of ReclamationUSFWSUnited States Fish and Wildlife ServiceUSGSUnited States Geological SurveyUV/AOPUltraviolet/Advanced Oxidation ProcessV&AV&A Consulting EngineersVCPVitrified Clay PipeVFAvolatile fatty acidsVFDvariable frequency driveVSRvolatile solids reductionVSSvolatile suspended solidsWaPUGWastewater Planning Users GroupWASwaste activated sludgeWDRWaste Discharge RequirementsWLAMWaste Load Allocation ModelWMWDWestern Municipal Water DistrictWQMPWater Quality Management PlanWRCRWAWestern Riverside County Regional Wastewater Authoritywtwet tonWTPDwet tons per dayWWTPwastewater treatment plantZLDZero Liquid Dischargeviii JUNE FINAL

City of Riverside Public Works DepartmentVOL. 7CHAPTER1UPDATE OF THE INTEGRATEDMASTER PLAN FOR THE WASTEWATERCOLLECTION AND TREATMENT FACILITIESCapital Improvement Programand Implementation

City of Riverside Public Works DepartmentUpdate of the Integrated Master Plan for the Wastewater Collection andTreatment FacilitiesVOLUME 7: CAPITALIMPROVEMENT PROGRAM ANDIMPLEMENTATIONCHAPTER 1: CAPITALIMPROVEMENT PROGRAM ANDIMPLEMENTATIONFINAL June 2019

City of Riverside Public Works DepartmentUpdate of the Integrated Master Plan for the Wastewater Collectionand Treatment Facilities ͳ: CAPITAL IMPROVEMENT PROGRAM ANDIMPLEMENTATION ͭ: CAPITAL IMPROVEMENT PROGRAM ANDIMPLEMENTATION Ǥ ͭͬͰ ͱ ͬͬDigitally signed by Graham J.G. JubyContact Info: Carollo Engineers, Inc.Date: 2019.08.01 16:37:32-07'00'

CAPITAL IMPROVEMENT PROGRAM AND IMPLEMENTATION VOL 7 CH 1 CITY OF RIVERSIDEContentsChapter 1 - Capital Improvement Program and Implementation1.1 Purpose1-11.2 Conclusions and Recommendations1-11.3 Background and Methodology1-21.4 Project List1-51.4.1 Headworks Projects1-61.4.2 Primary Sludge Pumping Rehabilitation1-61.4.3 MBR Treatment Train (Plant 1) Projects1-61.4.4 ACT Treatment Train (Plant 2) Projects1-71.4.5 Tertiary Treatment and Effluent Disinfection1-71.4.6 Solids Treatment1-71.5 Initial Project Summary1-81.5.1 Initial Project Schedule1-81.5.2 Initial Evaluation of Rate Impacts1-111.5.3 Initial CIP Workshop1-111.6 Treatment Facilities CIP Scenarios1-151.6.1 Project Drivers and Major Questions Related to the CIP Scenarios1-151.6.2 Development of CIP Scenarios1-171.6.3 Scenario 1: RWQCP Year 2023 Tertiary Filter Project1-181.6.4 Scenario 2: RWQCP Year 2028 MBR (Plant 1) Expansion1-191.6.5 Scenario 3: RWQCP Year 2034 Addressing TDS Limits1-201.6.6 Scenario 4: RWQCP Year 2035 Addressing Nutrient Limits1-211.6.7 Summary of Scenarios/Options1-251.6.8 Treatment Facilities’ CIP Scenario Summary1-281.7 Overall CIP Summary and User Rate Impacts1-351.7.1 Overall CIP Summary1-351.7.2 CIP Summary Rate Impacts1-351.8 Chapter Summary1-35AppendicesAppendix 1ARWQCP Treatment Facilities Project DescriptionsFINAL JUNE 2019 00/Deliverables/Volume 7 - Capital Improvement Plan and Implementation/Ch 1

CITY OF RIVERSIDE VOL 7 CH 1 CAPITAL IMPROVEMENT PROGRAM AND IMPLEMENTATIONTablesTable 1.12018 Initial Project List1-5Table 1.2Headworks CIP Summary1-6Table 1.3Primary Treatment CIP Summary1-6Table 1.4MBR Treatment Train (Plant 1) CIP Summary1-6Table 1.5ACT Treatment Train (Plant 2) CIP Summary1-7Table 1.6Tertiary Treatment and Disinfection CIP Summary1-7Table 1.7Solids Treatment CIP Summary1-7Table 1.8Initial RWQCP CIP Summary for Collection System and TreatmentFacilities1-8Table 1.9Projects Considered in CIP Scenarios1-15Table 1.10Project Drivers Considered in CIP Scenarios1-15Table 1.11CIP Scenario Major Questions1-16Table 1.12Project List with Scenario 4 Option 1 Implemented1-30FiguresFigure 1.1Project Development Strategy1-3Figure 1.22018 Initial Project Schedule for RWQCP1-9Figure 1.32018 Initial CIP Annual Expenditure (before prioritization step)1-12Figure 1.42018 Initial Rate Impact on CIP Annual Expenditure (before prioritizationstep)1-13Initial Summary of First Six year CIP with Various Levels of Bond Funding(before prioritization step)1-14Figure 1.6RWQCP’s Simple Flow Schematic1-18Figure 1.7Scenario 1: RWQCP Year 2023 Tertiary Filter Project Options1-18Figure 1.8Scenario 2: RWQCP Year 2028 MBR (Plant 1) Expansion Options1-19Figure 1.9Scenario 3: RWQCP Year 2034 Addressing TDS Limits Options1-20Figure 1.5Figure 1.10 Scenario 4: RWQCP Year 2035 Addressing Nutrient Limits Options 1 and 21-22Figure 1.11 Scenario 4: RWQCP Year 2035 Addressing Nutrient Limits Option 31-23Figure 1.12 Scenario 4: RWQCP Year 2035 Addressing Nutrient Limits Options 4 and 51-24Figure 1.13 Scenario 4: RWQCP Year 2035 Addressing Nutrient Limits Option 61-25Figure 1.14 Summary of Costs for Scenario 4 Options 1 - Option 51-26Figure 1.15 Scenario 4 Options Costs That do not Require RPU to Take all AvailableRecycled Water1-27ii JUNE 2019 FINAL

CAPITAL IMPROVEMENT PROGRAM AND IMPLEMENTATION VOL 7 CH 1 CITY OF RIVERSIDEFigure 1.16 Scenario 4 Options Costs that Assume 15,000 AF Santa Ana RiverDischarge1-27Figure 1.17 Scenario 4 Options Costs that Do Not Require RPU to Take All AvailableRecycled Water1-28Figure 1.18 CIP Scenario Summary1-29Figure 1.19 2019 Updated Project Schedule (after prioritization step)1-31Figure 1.20 RWQCP CIP Projects1-33Figure 1.21 2019 Final RWQCP Treatment CIP Annual Expenditure with Scenario 4Option 1 Implemented1-34Figure 1.22 2019 Final CIP Annual Expenditure (after prioritization step)1-36FINAL JUNE 2019 iii

CAPITAL IMPROVEMENT PROGRAM AND IMPLEMENTATION VOL 7 CH 1 CITY OF RIVERSIDEChapter 1CAPITAL IMPROVEMENT PROGRAM ANDIMPLEMENTATION1.1 PurposeThe purpose of this Chapter is to present a summary of the capital improvement projects that havebeen developed during the course of the analyses that are presented in the 42 Chapters that makeup the update of the Master Plan for the City.This Chapter also details the project prioritization step that was completed whereby the scheduleand costs for some projects in the initial project list were adjusted based on project triggers thatwere set by looking at three criteria: 1) consideration of recommendations that were used todevelop the initial project list; 2) annual expenditures versus available funds; and, 3) the impact ofthe CIP on customer rates.The project development process and project descriptions presented in this Chapter are for theRWQCP only. However, this Chapter does include a summary for both the RWQCP and theCollection System. The methodology used to develop the list of projects that are included in theCollection System CIP and the resulting project descriptions are presented in Volume 3, Chapter 7,Capacity Evaluation and Proposed Improvements; Volume 3, Chapter 8, Sewer Lift StationCondition Assessment; Volume 3, Chapter 9, Sewer Pipeline Risk Evaluation and R&R Program;and Volume 3, Chapter 10, Capital Improvement Program.1.2 Conclusions and Recommendations An initial list of eighteen RWQCP projects was developed based on six inputs that arepresented in the 42 Chapters that make up the update to the Master Plan. These inputsinclude: data collection; population, flow, and loading projections; condition assessment;regulatory and climate change considerations; process capacity modelling; andalternatives study.Using the initial projects list, the total project cost of all the RWQCP projects andCollection System projects is projected to be 181 and 361 million, respectively. Thetotal CIP expenditure over the planning period was initially projected to be 542 million.A preliminary rate impact analysis to determine the City’s capital funding potential inrelation to the projected annual capital expenditures found that it would require an annualuser rate increase of 5 percent to complete the projects from the initial CIP.A prioritization step was implemented that explored different CIP scenarios and options.The scenarios and options were developed by one of four actions as follows: 1) changingthe project implementation period; 2) removing a project from the planning period;3) changing the project elements to alter the project cost; or, 4) combinations of theaforementioned actions. The decision to explore different CIP scenarios was made toevaluate if the City could meet the same level of service without requiring a rate increaseof 5 percent every year.FINAL JUNE 2019 1-1

CITY OF RIVERSIDE VOL 7 CH 1 CAPITAL IMPROVEMENT PROGRAM AND IMPLEMENTATION The prioritization step showed two things: 1) the series of projects and CIP that wouldresult following the MBR treatment train (Plant 1) Expansion would cost more than theseries of projects and CIP resulting from implementing a larger Tertiary Filter Project;2) the more recycled water that RPU is willing to accept, the lower the CIP scenario costsbecome. However, for planning purposes the most conservative scenario was selected.This option gives the RWQCP the flexibility to function with minimal RPU commitmentconstraints or a change in the Santa Ana River discharge commitments. It also allows theCity to continue the philosophy of maximizing the use of the MBR treatment train(Plant 1) to be in a better position to meet future regulatory requirements.Based on the prioritization process, the original RWQCP CIP was reduced byapproximately 36 million. However, two additional projects were added to the RWQCPCIP totaling approximately 16 million. Furthermore, the Collection System CIP alsounderwent considerable changes as discussed in Volume 3, Chapter 10.The updated combined sewer CIP, including the selected RWQCP CIP implementationscenario (Scenario 4, Option 1) and Collection System projects throughout the planningperiod, is approximately 500 million (an 8-percent reduction over the initial combinedsewer CIP estimate). This CIP was used to estimate the impacts on user rates, discussedin detail in Volume 8, Chapter 1, Financial Plan and User Rates and Fees.1.3 Background and MethodologyProjects were identified for the Collection System and the RWQCP during the preparation of thevarious Volumes and Chapters that are part of the update to the Master Plan. This Chapterincludes:1. A description of the methodology used to develop the list of projects that are in theRWQCP CIP.2. Project descriptions for each of the RWQCP's CIP projects.3. The results of a prioritization of the Collection System and RWQCP projects.4. A summary of the proposed CIP through 2037 for the RWQCP and the Collection System.In addition to the information presented in this Chapter, the methodology used to develop the listof projects that are included in the Collection System CIP and the resulting project descriptionsare presented in Volume 3, Chapter 7; Volume 3, Chapter 8; Volume 3, Chapter 9; and Volume 3,Chapter 10.1-2 JUNE 2019 FINAL

CAPITAL IMPROVEMENT PROGRAM AND IMPLEMENTATION VOL 7 CH 1 CITY OF RIVERSIDEFigure 1.1 illustrates the steps taken to develop the CIP for the update of the Master Plan. Theshapes at the top of the Figure show the six inputs that were used to develop the initial list of CIPprojects. These inputs include the following: Data Collection - RWQCP andCollection System data werecollected from the City andother sources in order to haveaccurate information thatformed the basis for thevarious evaluations that wereperformed for the update ofthe Master Plan. This data wasused as input to each of theVolumes and Chapters in theupdate of the Master Plan.Population, Flow, and LoadingProjections - These weredeveloped to determine theflows and loads into theCollection System and RWQCPso that the need for futurecapacity projects could bedetermined. The details of thisevaluation are described inVolume2,Chapter3,Population, Loading, and FlowProjections.Figure 1.1Project Development StrategyCondition Assessment - A team of engineers assessed the RWQCP unit processes that arenot part of the Phase I Plant Expansion and a select group of Collection System lift stationsto determine the need for rehabilitation and/or replacement of these assets. In thisprocess, projects were identified through the condition assessment. The timing of theprojects was determined by triggers of when actions are required over the planning periodto keep the process areas in good working condition. These evaluations led to a list ofrehabilitation/replacement projects that are included in the initial list of projects. Inaddition, the CCTV information that was prepared for the Collection System was used todevelop the Collection System rehabilitation CIP. The details of these evaluations areincluded in Volume 3, Chapter 8 and Volume 6, Chapter 1, Plant Condition AssessmentResults.Regulatory and Climate Change Considerations - This analysis focused on future climate,water quality, air, and biosolids regulations that could impact the evaluation and selectionof projects during the update of the Master Plan planning period. The goals of the analysiswere to: 1) consider the perspective of impacts of climate change on the collection systemand RWQCP facilities; 2) identify specific regulatory requirements likely to arise duringthe planning period; 3) determine how to address those requirements (whether througha regulatory compliance effort using City compliance staff or through infrastructureFINAL JUNE 2019 1-3

CITY OF RIVERSIDE VOL 7 CH 1 CAPITAL IMPROVEMENT PROGRAM AND IMPLEMENTATION planning via the update of the Master Plan or other projects); and 4) identify and evaluatespecific methods/technologies that would meet the infrastructure needs that wereidentified during the regulatory and climate change analysis. The details of this analysisare included in Volume 2, Chapter 2, Regulatory and Climate Change Considerations.Process Capacity Modeling - This analysis included the use of computer-based processand hydraulic models to help determine the capacity of the RWQCP unit processes andthe Collection System. These models in conjunction with the population, flow, andloading projections were used to determine the need for capacity driven projects.Capacity driven projects compare the capacities of the treatment facilities to projectedfuture flows and loads. This was done to determine if the existing treatment capacitiesare sufficient or if capacity expansion projects are necessary over the planning period.These models in turn helped to determine what specific projects would be required forthe RWQCP unit processes and the Collection System, and the timing of those projects.For the RWQCP, a BioWin process model was used to determine unit process capacities.Details of this analysis are included in Volume 4, Chapter 3, Process Design and ReliabilityCriteria, and Volume 5, Chapter 3, Design Criteria. For the Collection System, a hydraulicmodel was used to determine pipeline and lift station capacities. The detail of this analysisis included in Volume 3, Chapter 7.Alternative Studies - Throughout the various updates to the Master Plan Volumes andChapters, analyses were performed to determine the best solution for each RWQCP unitprocess and segment of the Collection System. In general, these solutions were a directresult of the need for expansion, replacement/rehabilitation, to meet an O&M initiative,or to meet future regulatory requirements. These analyses led to the majority of theprojects that make up the update of the Master Plan initial project list.Using the six input criteria described above, an initial list of projects was developed. For each ofthe projects that were identified a project cost was developed. These costs were developed in theChapter where the corresponding project was evaluated. Volume 2, Chapter 4, Basis of CostEstimates, can be referenced for more detail on the methodology used to produce a project cost.The identified projects were then placed into a project list and a project description was developedthat contains a problem statement and a description of the work to be carried out for that project.The final step was the prioritization step whereby the schedule and costs for some projects wereadjusted based on project triggers that were set by looking at three criteria: 1) consideration ofrecommendations that were used to develop the initial project list; 2) annual expenditures versusavailable funds; and, 3) the impact of the CIP on customer rates.1-4 JUNE 2019 FINAL

CAPITAL IMPROVEMENT PROGRAM AND IMPLEMENTATION VOL 7 CH 1 CITY OF RIVERSIDE1.4 Project ListTable 1.1 is the initial list of the RWQCP projects that was developed through the processdescribed in Section 1.3. The list includes the project name, the project driver, project cost, andlocation in the update of the Master Plan where more information on the corresponding project islocated. The Collection System project list is included in Volume 3, Chapter 10. Projects groupedby process area are summarized in the following section.Table 1.12018 Initial Project ListProjectNo.Project NameProject Cost(1)ProjectDriverMaster PlanSource 8,782,600ConditionVol. 6 Ch. 1ConditionVol. 6 Ch. 1/Vol. 4 Ch. 4O&MInitiativeVol. 4 Ch. 4ConditionVol. 6 Ch. 1O&MInitiativeVol. 4 Ch. 6RegulatoryVol. 4 Ch. 6ConditionVol. 6 Ch. 1ConditionVol. 6 Ch. 1ConditionVol. 6 Ch. 1ConditionVol. 6 Ch. 1RegulatoryVol. 4 Ch. 6ConditionVol. 6 Ch. 1/Vol. 4 Ch. 7FI-01Headworks RehabilitationFI-02Headworks Screening ConveyorReplacementFI-03Headworks Bypass 1,070,545FI-04Headworks Grit Classifiers andPumps 1,855,700FI-05MBR Treatment Train (Plant 1)Phase II Expansion 20,517,500FI-06MBR Treatment Train (Plant 1)Enhanced Nutrient Removal 24,207,600FI-07ACT Treatment Train (Plant 2)Rehabilitation 3,384,000FI-08ACT Treatment Train (Plant 2)Mixers Rehabilitation 532,000FI-09ACT Treatment Train (Plant 2)RAS/WAS Pump StationRehabilitation 2,073,200FI-10ACT Treatment Train (Plant 2)RAS/WAS Pumps Replacement 1,142,000FI-11ACT Treatment Train (Plant 2)Enhanced Nutrient Removal 38,423,200FI-12Tertiary Filter Replacement andCCB Retrofits 9,430,400FI-13CCB Rehabilitation 1,005,300ConditionVol. 6 Ch. 1FI-14First AWT Project 38,615,642RegulatoryVol. 4 Ch. 8FI-15Second AWT Project 18,640,783RegulatoryVol. 4 Ch. 8FI-16WAS Thickening Project 8,028,800CapacityVol. 5 Ch. 4FI-17First Primary Sludge PumpingRehabilitation Project 1,876,200ConditionVol. 6 Ch. 1FI-18Second Primary Sludge PumpingRehabilitation ProjectConditionVol. 6 Ch. 1Facility CIP Total 933,700 749,500 181,268,670Notes:(1) Project costs are in 2017 Dollars.FINAL JUNE 2019 1-5

CITY OF RIVERSIDE VOL 7 CH 1 CAPITAL IMPROVEMENT PROGRAM AND IMPLEMENTATION1.4.1 Headw

PLC programmable logic controller POTW Publicly Operated Treatment Work ppbv parts per billion by volume ppcd pounds per capita per day ppd pounds per day ppd/cu ft pounds per day per cubic feet ppd/sq ft pounds per day per square feet pph pounds per hour ppm parts per million

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