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STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ <br />Capacity of systems subject to increased infiltration and inflow due to larger and/or <br />higher-intensitystorm events as a result of climate change; <br />Increases of erosive forces in canyons and streams near underground and above- <br />ground system componentsdue to largerand/or higher-intensitystormevents; <br />Capacity of major system elements to accommodate dry weather peak flow <br />conditions,and updated design storm and wet weather events; and <br />Necessary redundancy in pumping and storage capacities. <br />8.3.Prioritization of Corrective Action <br />The findings of the condition assessments and capacity assessments must be usedto <br />prioritizecorrective actions.Prioritizationmust consider the severity of the <br />consequences of potential spills. <br />8.4.Capital Improvement Plan <br />The capital improvement plan must include the following items: <br />Project schedules including completion dates for all portions of the capital <br />improvement program; <br />Internal and external project funding sources for each project;and <br />Joint coordination between operation and maintenance staff, and engineering <br />staff/consultants during planning, design, and construction of capital improvement <br />projects; andInteragency coordination with other impacted utility agencies. <br />9. MONITORING, MEASUREMENT AND PROGRAM MODIFICATIONS <br />ThePlanmust include an Adaptive Management section that addresses Plan- <br />implementation effectiveness and the steps for necessary Plan improvement, including: <br />Maintaining relevant information, including audit findings, to establish and prioritize <br />appropriate Plan activities; <br />Monitoringtheimplementation and measuring the effectiveness of each Plan <br />Element; <br />Assessing the successofthe preventive operation and maintenanceactivities; <br />Updating Plan procedures and activities, as appropriate,based on results of <br />monitoring and performance evaluations; and <br />Identifying and illustrating spill trends, including spill frequency, locations and <br />estimated volumes. <br />ATTACHMENT D SEWER SYSTEM MANAGEMENT PLAN <br />REQUIRED ELEMENTSDecember 6,2022 <br />D-9 <br /> <br />