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City of San Leandro <br />Sewer System Management Plan <br />Volume I <br /> <br />Page | 33 <br /> <br /> <br />• Service Calls monthly and annually <br />• Average time to respond to a Service Call <br />• Average response time and clean up time for an SSO annually <br />• Number of plugs in “Hot Spot” assets inspected weekly, monthly or quarterly <br />The City documents all maintenance activity information using the ICOM3 infrastructure <br />management system. Historic maintenance data can be digitally linked to the GIS for analysis of <br />repeat problem areas. This process allows the City to adjust maintenance activities to prevent <br />stoppages and develop reports for annual audits required for the SSMP. The ICOM3 system also <br />manages CCTV inspection data. Inspection data is collected in a format that is compatible with <br />ICOM3. The system allows for developing a history of operations of assets that help identify <br />approaching problems in operation and allow investigation and correction evaluation prior to an <br />Overflow event. <br />The City’s total number of SSOs and total volume of spills in calendar years 2016 – 2020 and the <br />first 11 months of 2021are shown below: <br /> <br /> <br />0 <br />500 <br />1000 <br />1500 <br />2000 <br />2500 <br />3000 <br />0 <br />1 <br />2 <br />3 <br />4 <br />5 <br />2011 2012 2013 2014 2015 2016 Total Volume (gallons)Number of SSOsNumber of SSOs <br />Total Volume (gallons) <br />2016 2017 2019 2020 2021 <br />Number of SSOs 3 1 1 2 2 <br />Total Volume (Gallons)669 20 20 1000 250 <br />0 <br />200 <br />400 <br />600 <br />800 <br />1000 <br />1200 <br />1400 <br />0 <br />0.5 <br />1 <br />1.5 <br />2 <br />2.5 <br />3 <br />3.5 <br />Number of SSOs Total Volume (Gallons)Number of SSOsTotal Volume in Gallons2016 2017 2019 2020 2021 <br />Number of SSOs 3 1 1 2 2 <br />Total Volume (Gallons)669 20 20 1000 250 <br />0 <br />200 <br />400 <br />600 <br />800 <br />1000 <br />1200 <br />1400 <br />0 <br />0.5 <br />1 <br />1.5 <br />2 <br />2.5 <br />3 <br />3.5 <br />Number of SSOs Total Volume (Gallons)Number of SSOsTotal Volume in Gallons2016 2017 2019 2020 2021 <br />Number of SSOs 3 1 1 2 2 <br />Total Volume (Gallons)669 20 20 1000 250 <br />0 <br />200 <br />400 <br />600 <br />800 <br />1000 <br />1200 <br />1400 <br />0 <br />0.5 <br />1 <br />1.5 <br />2 <br />2.5 <br />3 <br />3.5 <br />Number of SSOs Total Volume (Gallons)Number of SSOsTotal Volume in Gallons2016 2017 2019 2020 2021 <br />Number of SSOs 3 1 1 2 2 <br />Total Volume (Gallons)669 20 20 1000 250 <br />0 <br />200 <br />400 <br />600 <br />800 <br />1000 <br />1200 <br />1400 <br />0 <br />0.5 <br />1 <br />1.5 <br />2 <br />2.5 <br />3 <br />3.5 <br />Number of SSOs Total Volume (Gallons)Number of SSOsTotal Volume in Gallons2016 2017 2019 2020 2021 <br />Number of SSOs 3 1 1 2 2 <br />Total Volume (Gallons)669 20 20 1000 250 <br />0 <br />200 <br />400 <br />600 <br />800 <br />1000 <br />1200 <br />1400 <br />0 <br />0.5 <br />1 <br />1.5 <br />2 <br />2.5 <br />3 <br />3.5 <br />Number of SSOs Total Volume (Gallons)Number of SSOsTotal Volume in Gallons120