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City of San Leandro Sewer System Management Plan volume I conditions, as well as the appropriate design storm or wet weather event. The CIP includes an implementation schedule and identifies sources of funding. Cyclic Replacement Program A Cyclic Replacement Program is intended to provide for the long-term gradual replacement of the sewers in the City system. Such a program is needed because many of the City sewers are 50 or more years old, and the design life of a sewer pipe is generally considered to range from 50 to 100 years. Historically, the condition of many of the sewers of Bay Area communities such as the cities of Berkeley and Oakland and the older portions of the cities in Contra Costa County has been found to be poor, and rehabilitation and replacement programs have been recommended. The age and type of pipe materials in the City system are similar to many other community collection systems in the Bay Area. Over time the City sewers may exhibit many of the same problems of physical deterioration as have been found in these other systems. Therefore TV inspection of the sewers to determine and monitor their actual condition is being conducted. A Cyclic Replacement Program involves a systematic program to televise each sewer in the City's sanitary sewer system and identify those in need of rehabilitation or replacement. The City completed inspection of every sewer in the system to develop a baseline assessment of the condition of the system and thereafter inspect the system on a seven-year cycle. The results of the inspection program would be used to identify specific rehabilitation/replacement projects to be included in future capital improvement programs and the specific method of rehabilitation or replacement that is best suited for each project. Section 9 -Monitoring, Tracking and Reporting System Introduction This section of the SSMP discusses how the City of San Leandro measures the effectiveness of SSMP elements and monitors their implementation. Effectiveness is measured by developing and tracking performance indicators on a regular basis. Monitoring, tracking and reporting of routine maintenance activities, SSO abatement programs, and CIP programs are reported monthly and summarized annually. Information maintained on the collection system allows analysis and evaluation of changed conditions. Key performance indicators incorporated include: • Number of dry weather SSOs over the past 12 months (12 month average) • Number and characteristics of wet weather SSOs over the past 12 months • SSOs by cause (e.g. roots, grease, debris, pipe failure, pump station failure, capacity, other) Page (2s