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OPERATION AND MAINTENANCE PROGRAM © 2025 Fischer Compliance, LLC. All rights reserved. Sewer System Management Plan licensed for Redwood City use only Page 35 of 59 The Wastewater Division is prepared to respond to lateral service calls from customers twenty-four hours a day, seven days a week. Section 2.3 describes how these calls are received and routed to the on-call crew member. In the case of a lower lateral blockage, the on-call crew member clears the blockage, documents the response on Hiperweb and indicates if a CCTV inspection is needed to check the lateral for defects that might warrant repair or replacement. These lateral CCTV inspections are conducted by City staff as needed each Friday (although they can be completed sooner in particularly urgent situations). The CCTV inspection crew will assess and report if the lateral needs to be repaired or replaced, and with what urgency. Lateral CCTV inspections and findings are documented via Hiperweb work orders. Information from these work orders is entered, compiled, and tracked in Hiperweb. Approximately three to four laterals are repaired or replaced each week totaling 150 to 200 per year. Sewer Pipeline and Manhole Rehabilitation and Replacement Program The Engineering and Transportation Department plans sewer main and manhole rehabilitation and replacement based on condition assessment information. Sewer condition assessment information is available on the City’s network and viewable through the Wincan VX software. Inspection and video data are also linked to the City’s GIS when possible. The City typically designs sewer rehabilitation and replacement projects by sewer basin, grouping segments selected for rehabilitation and/or replacement within a sewer basin into the same project. Rehabilitation and replacement projects generally follow the prioritization of sewer basins based on I/I factors and the PACP condition ratings. In some cases, the schedule for larger rehabilitation and replacement projects is shifted based on available funding. Rehabilitation and replacement of sewer pipelines also includes work on manholes and lower laterals for those line segments. However, City staff may perform a separate secondary inspection on sewer manholes identified by the CCTV contractor as having a severe structural condition. The purpose of secondary manhole inspections is to identify possible candidates for inclusion in a separate manhole repair, rehabilitation, or replacement contract. The City typically creates a sewer manhole rehabilitation and replacement contract once approximately 50 sewer manholes are identified for rehabilitation and replacement. The City will expedite sewer rehabilitation or replacement if severe structural deterioration is identified. ATTY/RESO.0077/CC RESO SEWER SYSTEM MANAGEMENT PLAN - EXHIBIT A REV: 07-14-25 LF Page 42 of 317