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II. INTRODUCTION <br />A. General <br />A sanitary collection system of any size is a public investment which requires <br />constant attention through maintenance and repair to ensure protection of the <br />environment and public safety, as well as continued economic growth. Providing <br />for the environment, the public, and growth is a task for which municipalities must <br />allow resources to continually maintain a collection system's intended <br />performance. To optimize resources, a collection system must be investigated <br />thoroughly and systematically to isolate sources of Inflow/Infiltration (UI), locate <br />structural deficiencies, and identify hydraulic capacity limitations. Following a <br />systematic investigation of locating UI sources and structural defects, a <br />recommended rehabilitation plan involving I/I source abatement can be established <br />to reduce surcharging and overflows within the collection system. <br />B. Scope of Study <br />This project is the outcome of an eazlier Flow Monitoring Study carried out by <br />ADS Environmental Services in October 1996 for the city of Paris, Texas. Based <br />on previous data and recommendations, the following items are included in the <br />scope of the current sanitary collection system study: <br />• Establish a numbering system and assign numbers to all structures (manholes, <br />pump stations etc.) in the collection system. <br />• Conduct above ground reconnaissance and map verification, and an inventory <br />of all access structures including dimensions, construction materials and <br />physical condition. <br />Locate, evaluate, and quantify inflow/infiltration sources using methods such <br />as: physical inspection, smoke testing, dye water testing, and internal closed <br />circuit television inspection. <br />ADS Environmental Services, Inc. <br />11 -1 <br />