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In)lltration. The percolation of water into the ground. lnieb A structural facility located just below_ the ground surface, used to collect stormwater runoff' for conveyance purposes. Generally located in streets and parking lots, inlets have graved lids, allowing stormwater from the surface to pass through for collection. The term "inlet" can also be used in reference to . the point at which stormwater from impervious surfaces or conveyance pipe enters a stormwater management facility. LO-50: The lethal dose of a substance that is expected to loll approximately 50 percent of experimental animals through oral ingestion. [Refer to product Material Safety Data Sheet] Local Ding Location: An area within 15 feet of an above -ground storage tank [AST] and used to dispense fuel dlrecdy from the AST, typically through a flexible lose. Low Impact Development (LID): A stormwater management approach that seeks to mitigate the impacts of increased runoff and stormwater pollution using a set of planning, design, and construction approaches and stormwater management practices that promote the use of natural systems for infiltration, evapotranspiration, and reuse of rainwater, and can occur at a wide range of landscape scales (i.e., regional, community, and site scales). Mechanical 71reatment Facilides: Manufactured and proprietary storinwat3er quality devices used to remove pollutants from stormwater. ,Notice of Operations and Maintenance. A recorded document that identifies the presence of a privately maintained stormwater management facility. Off-Site Stor►nwffwr Fadllty: Any stormwater management facility located outside the property boundaries of a specific development, but designed to reduce pollutants from and /or control stormwater flows from that development. - On Site Stormwater Facility: Any stormwater management facility necessary to control stormwater within an individual development site and located within the boundaries of the development site. Operations and Maintenance (O&.N): The continuing activities required to beep stormwater management facilities and their components functioning in accordance with design objectives. Operations and Maintenance Plan: Activities developed to identify the ongoing operation and maintenance measures required to keep stormwater management facilities and their components functioning in accordance with design objectives and permit requirements. OutfaU. A location where collected and concentrated water is discharged. Outfalls include discharge from stormwater management facilities, drainage pipe systems, and constructed open channels. StarmwaW Management Manual 1 -9 E ugen e 2014