escape route means the entire path of travel, measured from an escape door to the furthest point in any room in a building;
Seepage pit means an excavation deeper than it is wide that receives septic tank effluent and from which the effluent seeps from a structural internal void into the surrounding soil through the bottom and openings in the side of the pit.
Exfiltration means any unauthorized release of data from within an information system. This includes copying the data through covert network channels or the copying of data to unauthorized media.
Infiltration means water other than wastewater that enters a sewer system (including sewer system and foundation drains) from the ground through such means as defective pipes, pipe joints, connections, or manholes. Infiltration does not include, and is distinguished from, inflow.
Membrane filtration means a pressure or vacuum driven separation process in which particulate matter larger than one micrometer is rejected by an engineered barrier, primarily through a size exclusion mechanism, and which has a measurable removal efficiency of a target organism that can be verified through the application of a direct integrity test. This definition includes the common membrane technologies of microfiltration, ultrafiltration, nanofiltration, and reverse osmosis.
Filtration means a process for removing particulate matter from water by passage through porous media.
Overflow means the intentional or unintentional diversion of flow from the collection and transport systems, including pumping facilities.
Spillage means a security incident that results in the transfer of classified or other sensitive or sensitive but unclassified information to an information system that is not accredited, (i.e., authorized) for the applicable security level of the data or information.
Emission means a release of air contaminants into the ambient air.
Slow sand filtration means a process involving passage of raw water through a bed of sand at low velocity (generally less than 0.4 meters per hour (m/h)) resulting in substantial particulate removal by physical and biological mechanisms.
Inherent filtration means the filtration of the useful beam provided by the permanently installed components of the tube housing assembly.
Injection means the pressurized placement of septage waste below the surface of soil.
inert waste means waste that—
Wildlife habitat means a surface water of the state used by plants and animals not considered as pathogens, vectors for pathogens or intermediate hosts for pathogens for humans or domesticated livestock and plants.
Odor means that property of an air contaminant that affects the sense of smell.
Underground injection means the subsurface emplacement of fluids through a bored, drilled or driven well; or through a dug well, where the depth of the dug well is greater than the largest surface dimension. (See also “injection well”.)
Added filtration means any filtration which is in addition to the inherent filtration.
Incineration means an engineered process involving burning or combustion of solid waste to thermally degrade waste materials at high temperatures;
Spill means the release of manure, manure contaminated runoff, or process wastewater from the confines of an animal feedlot, manure storage area, manure transfer system, or other component used to collect, transfer, or store manure, manure contaminated runoff, or process wastewater that if not recovered would pollute waters of the state. Spill includes releases from activities associated with land application that do not comply with this Permit.
Spoil means excavated material which is unsuitable for use as material in the construction works or is material which is surplus to the requirements of the construction works;
Environmentally sensitive area means any area in which plant or animal life or their habitats are either rare or especially valuable because of their special nature or role in an ecosystem and which could be easily disturbed or degraded by human activities and developments.
Direct filtration means a series of processes including coagulation and filtration but excluding sedimentation resulting in substantial particulate removal.
Virginia Stormwater Management Act means Article 2.3 (§ 62.1-44.15:24 et seq.) of Chapter 3.1 of Title 62.1 of the Code of Virginia.