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2020 Eugene Wastewater Master Plan Glossary <br />Glossary and Key to Abbreviations <br />ACP – asphaltic concrete pavement <br />ADWF – average dry-weather flow, used to calculate system flows, including base flow and peak flow <br />CFS – cubic feet per second <br />CIP – capital improvement plan, used to plan long-term major infrastructure improvements <br />CIPP – cured-in-place pipe, a treatment used to repair wastewater lines <br />DEQ – Oregon Department of Environmental Quality <br />DU – dwelling unit <br />ENR – Engineering News-Record, a weekly publication that publishes an extensive amount of data on <br />building material prices and construction labor costs <br />Force main – a wastewater pipe that conveys wastewater under pressure <br />GAD – gallons per acre per day <br />GPM – gallons per minute <br />Gravity line – a wastewater pipe that conveys wastewater by gravity <br />I/I – inflow and infiltration. Inflow occurs when stormwater enters the wastewater system through <br />inappropriate connections such as downspouts. Infiltration occurs when groundwater enters the <br />wastewater system through cracks and other deficiencies in wastewater collection pipes. <br />Interceptor – a large-diameter wastewater pipe that conveys large volumes of wastewater <br />Kgal – 1,000 gallons <br />Metropolitan Area General Plan – the overarching planning document for land within the <br />EugeneSpringfield urban growth boundary. <br />MGD – thousands of gallons per day, used to quantify the volume of wastewater flows <br />MWMC – Metropolitan Wastewater Management Commission, a governmental agency comprised of <br />representatives from Lane County and the cities of Eugene and Springfield to manage regional <br />wastewater services in the metro area. The City of Eugene operates the regional collection and <br />treatment system, and Springfield provides administrative services for the regional agency. <br />PFF – peak flow factor <br />PGD - permanent ground deformation <br />Pump station – a wastewater facility, also known as a lift station, that pressurizes and pumps <br />wastewater when gravity is not sufficient to convey the flow <br />SDC – system development charges, impact fees generally collected when expansion, new development, <br />or an intensification of use occurs on property served by City infrastructure. The fees are used to fund