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Wastewater <br />This section of the CIP describes projects associated with the local collection and transmission of <br />wastewater from Eugene to the regional water pollution control facility owned and operated by <br />the Metropolitan Wastewater Management Commission (MWMC). Projects associated with the <br />regional water pollution control facility and other regional facilities are a part of the MWMC <br />Capital Program. The Capital Improvement Program for Wastewater is supported by the 1992 <br />Urban Sanitary Sewer Master Plan. This plan identifies future needs and estimates the costs to <br />extend service to developing areas within the Urban Growth Boundary (UGB). The plan also <br />includes recommendations for rehabilitation of existing systems and management of infiltration <br />and inflow (I&I) entering the wastewater collection system. <br />The I&I program (Wastewater System Rehabilitation) is a strategic approach designed to reduce <br />or limit the amount of groundwater/rainwater flow that is treated at the regional wastewater <br />treatment plant as well as retain the carrying capacity of the collection system and maintain the <br />infrastructure. Currently, illicit connections to the wastewater system or deterioration of the <br />collection system (open joints, cracks, etc.) are allowing excessive groundwater or rainwater to <br />enter the system. This reduces the carrying capacity of the collection system and contributes to <br />large peaks in the flows that are treated at the wastewater treatment plant. The Wet Weather <br />Flow Management Plan (WWFMP) reinforces a focus on I&I reduction through rehabilitation of <br />the existing system. The WWFMP also recommends the development of a program to address <br />the private portion of the collection system; the community sewers rehabilitation program is a <br />first step in that effort. <br />The WWFMP for the wastewater system serving the Eugene/Springfield metropolitan area was <br />adopted by the Metropolitan Wastewater Management Commission in the winter of 2001 and <br />accepted by the City Council of Eugene shortly thereafter. A citizens committee and open <br />houses were utilized during the development of the plan. Elements of the study reinforce the <br />recommendations for rehabilitation in the Urban Sanitary Sewer Master Plan. <br />Project Subcategories <br />Wastewater projects are described in one of two ways: <br />Preservation and Maintenance -The wastewater system rehabilitation projects focus on <br />inflow and infiltration (I&I) in our aging system. In addition to reduction of I&I to keep <br />overall collection and treatment costs down, the I&I program protects the public's <br />investment in existing facilities where routine preventive maintenance activities are no <br />longer cost-effective. These projects are funded by user fees and by the reimbursement <br />component of the wastewater system development charge. The pump station <br />rehabilitation projects are to upgrade older pump stations to increase efficiency and to <br />lower operation costs. The community sewers rehabilitation program will provide <br />wastewater systems adjacent to properties to reduce inflow and infiltration and <br />operational problems. All of the projects in the preservation and maintenance subcategory <br />have an element that will provide additional capacity as a result of the increase in <br />efficient operations or reduction in I&I, but the primary focus of the projects is to <br />preserve and maintain the facility. <br />City of Eugene 2008 - 2013 Capital Improvement Program <br />226 <br />