Item 07 - Sewer System Management Plan 2025 Update

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y of Santa Ana Section 7: Sewer Pipe Blockage Control This process includes an interceptor -sizing component and an Interceptor Maintenance Plan, which includes the City's maintenance requirements, BMP requirements, record keeping and reporting requirements. A list of all FSE's is maintained by the City in an FSE Access database and includes all grease removal equipment and documentation requirements. The City has identified the sections of its sanitary sewer system subject to high levels of FOG, and has developed an Operation and Maintenance Program which includes a higher frequency (typically monthly) cleaning schedule for each of these sections. FSEs located upstream of these locations are subsequently inspected more frequently to help control the FOG discharge. Elements of the FOG Control Program includes: 1) City Staff and the City's FOG Program consultant meets with FSE owners during inspections, and as needed, to discuss the City's FOG Control Program and proper grease control device maintenance. The City has developed formal literature to be disseminated during these meetings. The City also distributes FOG educational materials to residential communities associated with high levels of FOG discharge and has made educational materials including "dos and don'ts" to help reduce FOG discharges, kitchen BMPs in three languages, training and interceptor maintenance logs, informational charts, and more available on the FOG Control Program section of their website. 2) The City requires that each FSE maintain a plan and schedule for the disposal of FOG generated by its activities. The plan and schedule can be found within the FOG Control Program Manual's Appendix L. 3) In January of 2005, the City of Santa Ana implemented a FOG Control Program that includes all of the required WDR elements. A copy of the FOG Control Program Manual was submitted to the Regional Board in January, 2005. The FOG Control Program Manual is incorporated, by reference, into the SSMP and was updated in December 2019. All elements of the FOG Control Program are currently being implemented by a combination of City staff and consultants. The City's FOG Ordinance (Ordinance No. NS 2921) provides the legal authority necessary to enforce the FOG program. 4) The City's requirements to install grease removal devices are discussed in Section 4.3 — FOG Wastewater Discharge Requirements of the City of Santa Ana Fats, Oils, and Grease (FOG) Control Program Manual. This section, and related sections in the FOG Control Program Manual also describe the requirements for design standards for the removal devices, maintenance requirements, BMP requirements, and record keeping and reporting requirements. 5) The City has legal authority to inspect grease producing facilities established in Ordinance No. NS 2921 and the FOG Control Program Manual and enforces any violation of the sewer ordinance in accordance with City requirements. The City has sufficient staff to provide inspections of each grease removal device in its service area at least once per year. 6) The City has identified sections of its sanitary sewer system subject to high levels of FOG in its Digital Sewer Atlas (infraMAP). Accordingly, the City's Operation and Maintenance Program includes a higher frequency (typically monthly) cleaning schedule for each of these sections. These measures have prevented FOG related SSOs from occurring. Using infraMAP, the City can also pinpoint inspections to focus on these sections identified with high FOG accumulation. Inspection results and inspection history is stored in the infraMAP database and evaluated periodically. The City of Santa Ana has created an "Enhanced Maintenance Location (EML) Database" as a part of the Sewer System Infrastructure Management System. These EMLs along with siphons are cleaned on a weekly or monthly basis, depending on the severity of the problem. 2025