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Table 4-1 Gravity Sewer Preventative Maintenance Summary Year Sewer Lines Sewer Lines "Bad Spot" Cleaning activities 180 360 Video (ft.) Flushed (ft.) 30 days 90 days days days 2008 160,000 182,000 28 3 14 13 2009 175,000 175,000 28 3 14 13 2010 175,000 138,000 28 3 14 13 2011 65,676 82,235 28 3 14 13 2012 50,418 24,729 28 3 14 13 2013 49,674 73,507 28 3 14 13 CCTV Inspection Most Utilities Division staff has been trained in the use of the CCTV equipment. There is no formal system to assess and evaluate findings from this activity. All assessment is based on historical experience which is obvious to the operators as they have experience. They entire system is televised every 7 years. Rehabilitation and Replacement The information gathered during the CCTV condition assessment will be used to select individual gravity sewers for repair, rehabilitation, or replacement.The general criteria for sewer replacement are to focus on those areas identified as"Bad Spots". The replacement or rehabilitation is also considered each time water service line or street repairs are performed. In 2010 the City replaced a 6" sewer line that created a capacity problem and a manhole was modified to alleviate a blockage problem. Funding for the Capital Improvement Program is derived from the City's Sewer Fund. The sewer fund is an enterprise fund; sewer fees are established on the basis of projected needs and are updated periodically.The budget and project description are currently included in the City's Capital Improvement Program. This listing is included in the Sewer System Master Plan. Wastewater Pump/Lift Stations Inspections and Maintenance The Duty Operator inspects the operation of Sewage Lift Stations daily. Maintenance activities include: inspecting the site;verifying pump operation; rotating pumps and, grease and debris removal.The stations can be powered by trailer-mounted generators during power outages. 18jPage