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<br />~ <br />~~HILLS <br /> <br />. <br /> <br />MEMORANDUM <br /> <br />DATE: <br /> <br />April 5, 2005 <br /> <br />Agenda Item - W orksession <br /> <br />TO: Mayor and Council <br />Michelle Wolfe, City Administrator <br /> <br />FROM: Thomas j, Moore; Director of Operations & Maintenance <br /> <br />SUBJECT: Infrastructure Maintenance Schedules and Equipment Usage Discussion <br /> <br />BACKGROUND <br />This memo is the second in the series of infrastructure discussions and is a follow up to the <br />March 14, 2005, memo from Greg Brown, City Engineer, regarding infrastructure assessment <br />and rehabilitation, At the March 14,2005 City Council Meeting, the Council requested that staff <br />provide information regarding the maintenance of the City's infrastructure and a listing of City <br />vehicles/equipment and its usage in maintaining the City's infrastructure, The City's <br />infrastructure consists of the following components: sanitary sewer, water and storm water. <br /> <br />. <br /> <br />SANITARY SEWER <br /> <br />Equipment <br />Lift Stations & Sanitary Manhole Map - This twelve page laminated guidc identifies and shows <br />every manhole in the City as it relates to a lift station, For example MH3-10, is Lift Station #3, <br />the 10th manhole that feeds into LS #3. This guide is placed in every City vehicle in order to <br />allow City staff to respond quickly to any type of situation impacting the sanitary sewer system. <br />The notebook was developed two years ago, A log book or record is completed by staff for every <br />time the jetter, vactor or video camera is used, <br /> <br />Vehicles <br />1987 Ford Jettcr - This is a truck cquipped with a water tank, an auxiliary motor and a high <br />pressure hose. Two people are rcquired to operate this piece of equipment. The hose is lowered <br />into a manhole and the auxiliary motor supplies a high pressure 'jet' of water to clean debris in <br />thc scwer line, This jet of water will clean everything except trcc roots, In the event of tree roots, <br />an attachment called a root cutter is secured to the end of the high pressure hose, The root cutter <br />has a diamond tip rotating head and four lengths of rotating sharpen chains that are custom fitted <br />to the size of the sewer pipe. The jet of water propcls the diamond tip and the chains down the <br />sewer pipe eliminating the tree roots. <br /> <br />. <br />