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City of San Leandro <br />Sewer System Management Plan <br />volume I <br />The system supports inspecting and cleaning the sewerage piping and tunnels, manhole <br />structures and drop shafts and identifying areas that need more frequent cleaning. <br />Collection System Map <br />The City of San Leandro incorporates an electronic <br />(GIS based) collection system mapping as an integral <br />part of the CMMS. Asset information from the GIS <br />inventory records are incorporated into a consolidated <br />Collection System Asset inventory. <br />This information forms the basis of an asset registry <br />and GIS mapping base. The mapping base includes <br />aerial imagery, geo/political boundary areas, single <br />line street network, parcels, basins, asset inventory of <br />the collection system, and related topographical and <br />planimetric data. <br /> <br /> ~ <br />~ <br /> . <br />~~ ~~~ ,~ <br />~ .,: <br />' w <br />r~~ <br />. ~,~ Y <br />AfMe <br />p <br />~.i~ <br /> ~~~ <br />~~~: ~:~ ~ <br />~ <br />H I ~ ~~~ <br /> <br />a~ ~, <br />,. <br />rs,rzs~u ~en*rr ~.. a <br />ti <br /> <br />.t <br />. <br />~~2~~,.. <br />a.u,u ,az~is <br />~. ,. ~,ne,a, - z~yalaaaw <br /> <br />~. a <br />r.,~ <br />The mapping module integrates with the City's ESRI ArcGIS system that allows users to update <br />and exchange mapping information on a regular basis. <br />Each sanitary sewer asset is tracked individually in the system. Manhole identification numbers <br />are used to define unique pipe segments. Each pipe segment is attributed with size, pipe type, <br />year built, direction of flow, and percentage of slope. The City also maintains hard copy mapping <br />of the system. The hard copy maps are updated as needed by engineering staff using Auto-Cad <br />drawings. The electronic mapping system is drawn to scale and overlays recent aerial <br />photographs of the service area as well as property boundaries. The electronic map is linked to <br />the City's collection system Maintenance Management System and is being populated with all of <br />the information required to make it a fully functional GIS. <br />Prioritized Preventive Maintenance <br />The City of San Leandro's maintenance management system (CMMS) is used to manage the <br />collection system preventive maintenance program. Maintenance planning and scheduling is <br />used to establish annual and other periodic maintenance goals. These goals include the sewer <br />pipe scheduled cleaning and CCTV inspection objectives. The ICOM3 planner is used to assign <br />maintenance frequencies to the collection system components. Once a set of assets is defined, it <br />can be assigned different activities or tasks to formulate maintenance job plans. These plans can <br />be saved as grouped sets for maintenance or projects for budgeting, scheduling and tracking <br />purposes. <br />Maintenance Planning <br />The planning module is used to establish programmed maintenance and inspection activities, <br />preventative maintenance objectives for each of the maintenance activities, current and proposed <br /> <br />