Item 07 - Sewer System Management Plan 2025 Update

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V of Santa Ana Section 4: Operation and Maintenance Pro, Section 4: Operation and Maintenance Program Section 4 of this SSMP addresses the requirements included in Attachment D-4 of the Order. The requirements state: Operation and Maintenance Program: The Plan must include the items listed below that are appropriate and applicable to the Enrollee's system: (a) Up-to-date map(s) of the sanitary sewer system, and procedures for maintaining and providing State and Regional Water Board staff access to the map(s). The map(s) must show all gravity line segments and manholes, pumping facilities, pressure pipes and valves, and applicable storm water conveyance facilities within the sewer system service area boundaries; (b) Describe a scheduling system and a data collection system for preventive operation and maintenance activities conducted by staff and contractors. The scheduling system must include: inspection and maintenance activities, higher frequency inspections and maintenance of known problem areas (including areas with tree root problems), regular visual and closed-circuit television (CCTV) inspections of manholes and sewer pipes. The data collection system must document data from system inspection and maintenance activities, including system areas/components prone to root -intrusion potentially resulting in system backup and/or failure; (c) In-house and external training provided on a regular basis for sanitary sewer system operations and maintenance staff and contractors. The training must cover the requirements of the Order, the Enrollee's Spill Emergency Response Plan (SERP) and practice drills, skilled estimation of sill volumes for field operators, and electronic CIWQS reporting procedures for staff submitting data; and (d) An inventory of sewer system equipment, including the identification of critical replacement and spare parts. 4.1 Updated Map of Sanitary Sewer System The City utilizes a Geographic Information System (GIS) based mapping system to maintain and manage collection system maps and key system attribute data. The GIS mapping system, depicting the physical location of all sewer mains, manholes and lift stations, is deployed to collection system 0&M staff using field tablets. This mobile system provides up-to-date system maps as well as historic system information such as construction plans, asset age, known defects, and maintenance frequencies. Where mapping errors or omissions are identified by field crews, the system provides the ability to capture and relay the corrections to the City's engineers for review and, where appropriate, revision to the GIS database. Figure 4-1, City of Santa Ana Sewer System Map, is a composite rendering of a sewer system map generated from the City's GIS. 2025 4-7