Item 07 - Sewer System Management Plan 2025 Update

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STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER • The Enrollee's compliance with this General Order with a focus on compliance with reporting requirements; • The Enrollee's provision of adequate funding to implement the requirements of this General Order; • The Enrollee's compliance with providing a complete and updated Sewer System Management Plan; • The Enrollee's compliance with implementing its Sewer System Management Plan; • The overall effectiveness of the Enrollee's Sewer System Management Plan with respect to- o System management, operation, and maintenance, o Adequate treatment facilities, sanitary sewer system facilities, and/or components with an appropriate design capacity, to reasonably prevent spills (e.g. adequately enlarging treatment or collection facilities to accommodate growth, infiltration and inflow, etc.), o Preventive maintenance (including cleaning, root grinding, and fats, oils, and grease control) and source control measures, o Implementation of backup equipment, o Inflow and infiltration prevention and control, o Appropriate sanitary sewer system capacity to prevent spills, and o The Enrollee's responsiveness to stop and mitigate the impact of the discharge; • The Enrollee's compliance with identifying the cause of the spill; • The Enrollee's use of available information and observations to accurately estimate the spill volume and identify the affected or potentially affected receiving waters; • The Enrollee's thoroughness of cleaning up sewage in drainage conveyance systems after the spill(s); • The Enrollee's use of water quality and biological monitoring and assessment to determine the short-term and long-term impacts to beneficial uses and the environment; • The Enrollee's follow up actions to improve system performance; • The Enrollee's implementation of feasible alternatives to prevent spills, such as: o Use of temporary storage or waste retention, o Reduction of system inflow and infiltration, o Collection and hauling of waste to a treatment facility, o Prevention of and/ or containment of spills due to a design storm event identified in the Enrollee's Sewer System Management Plan, ORDER 2022-0103-DWQ December 6, 2022 29