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2025 Sanitary Sewer Maintenance Plan <br />Sewer Cleaning and Televising 840 FTE labor hours required, 3 FTEs required, high priority. <br />Below is a list of abbreviations and their meanings related to sanitary sewer maintenance and used in <br />this document. <br />CIP = Cast Iron pipe <br />CIPP = Cured -in -Place Pipe or otherwise known as pipe lining <br />GIS = Geographic Information Systems/ mapping system <br />I&I = Inflow and Infiltration (groundwater and stormwater that enter a sewer system) <br />PVC = Polyvinyl Chloride (a common and durable type of pipe material) <br />MH = Manhole <br />RCP = Reinforced Concrete Pipe <br />VCP = Vitrified Clay Pipe <br />The 2025 sewer cleaning and televising work will take place in the southeast third of the city. <br />The city is divided into one-third sections. In 2025, PW staff will complete the southeast third of the city. <br />Cleaning and televising all VCP (category 2 sewer mains) are on a 3-year cycle This sets cleaning and <br />televising efforts on a 3-year cycle to clean all VCP. While working in the southeast third, PW staff also <br />assess category 1 and 3 for cleaning needs. <br />Shown below are the intervals followed for sanitary sewer cleaning and televising as outlined in the <br />City's Sanitary Sewer Maintenance Policy and according to guidelines provided by the LMC. <br />• Every 3 Years <br />o CIP and RCP will be televised and reviewed to determine if hydraulic cleaning and/or <br />root cutting is needed. <br />o VCP clean or televise. Root cut with hydraulic attachment and proofer as needed. <br />Televising will be saved on the City's network drive and can determine if cleaning or root <br />cutting is needed within a VCP mainline. Mainline cleaning data is saved from the field <br />to the cni#+es City's GIS database through a mobile application. <br />• Every 5 Years <br />o PVC and CIPP clean and spot televise. Dead ends can be flushed using the tanker to <br />"quick dump". This will be recorded as the mainline is "clean" up to 2 line segments <br />downstream. <br />51 <br />