15-2-2: DEFINITIONS:
Within the context of this title, the following words and terms shall have the meanings set forth except where otherwise specifically indicated. Words and terms not defined shall have the meanings indicated by common dictionary definition.
ADMINISTRATOR: The person administering the implementation and enforcement of this title. The administrator shall be the village engineer.
BUILDING: A structure that is constructed or erected partially or wholly aboveground and is enclosed by walls and a roof. The term "building" includes manufactured homes and includes both the aboveground and the belowground portions of the structure.
CLEAN WATER ACT (CWA): The federal water pollution control act (33 USC section 1251 et seq.), and any subsequent amendments thereto.
COMMUNITY: The village of Oak Brook acting as a unit of local government.
COUNTY: The county of DuPage, Illinois.
DEPARTMENT: The DuPage County stormwater management division or successor agency.
DIRECTOR: The DuPage County director of stormwater management or successor position or his or her designee.
DRAIN: Piping and appurtenances for conveying a fluid.
FACILITY: Something that is built, installed, or established to serve a particular purpose.
HAZARDOUS MATERIALS: Any material which may cause, or significantly contribute to, a substantial hazard to human health, safety, property, or the environment.
ILLICIT CONNECTIONS: Either of the following:
   A.   Any drain or conveyance, whether on the surface or subsurface, that allows an illicit discharge to enter the storm drainage system including, but not limited to, any conveyances that allow any nonstormwater discharge including sewage, process wastewater, and wash water to enter the storm drainage system and any connections to the storm drainage system from indoor drains and sinks, regardless of whether said drain or connection had been previously allowed, permitted, or approved by the community; or
   B.   Any drain or conveyance connected from a commercial or industrial land use to the storm drainage system that has not been documented in plans, maps, or equivalent records and has not been approved by the community.
ILLICIT DISCHARGE: Any direct or indirect nonstormwater discharge to the storm drainage system except as exempted in subsection 15-5-1C of this title.
INDUSTRIAL ACTIVITY: Activities subject to an industrial NPDES stormwater permit as defined in 40 CFR section 122.26(b)(14).
LINE: A hollow conduit through which fluids are transported between two (2) or more points.
MUNICIPAL SEPARATE STORM SEWER SYSTEM (MS4): A conveyance or system of conveyances (including, but not limited to, sidewalks, roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, manmade channels, and storm sewers) owned or operated by a governmental entity and designed or used for collecting or conveying stormwater, and that is not used for collecting or conveying sewage.
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT: A permit issued by Illinois environmental protection agency (IEPA) that authorizes the discharge of pollutants to waters of the United States, whether the permit is applicable on an individual, group, or general areawide basis.
NONSTORMWATER DISCHARGE: Any discharge to the storm drainage system that is not the direct result of precipitation and/or snowmelt in the tributary drainage basin.
NOTICE OF INTENT (NOI): Illinois environmental protection agency notice of intent to participate in coverage under the general permit to discharge stormwater associated with industrial activity.
OVERSIGHT COMMITTEE: The zoning board of appeals of the village of Oak Brook.
PARCEL: Contiguous land under single ownership or control.
PERSON: Any individual, association, partnership, public or private corporation, municipality, political subdivision, government agency, or any other legal entity, including heirs, successors, agents, officers, and assigns of such entity.
pH NEUTRAL: pH value between 6.5 and 9.0 standard units.
PLAN: The DuPage County stormwater management plan, adopted by the DuPage County board in September 1989, as amended from time to time, county ordinance OSM-0001-89.
POLLUTANT: Anything that causes or contributes to pollution. Pollutants may include, but are not limited to: paints, varnishes, and solvents; oil and other automotive fluids; nonhazardous liquid and solid wastes and yard wastes; refuse, rubbish, garbage, litter, or other discarded or abandoned objects, and accumulations, so that same may cause or contribute to pollution; floatables; pesticides, herbicides, and fertilizers; hazardous substances and wastes; sewage, wastewater, fecal coliform and pathogens; dissolved and particulate metals; animal wastes; wastes and residues that result from constructing a building or structure; and noxious or offensive matter of any kind.
PREMISES: Any building, lot, parcel of land, or portion of land, whether improved or unimproved, including adjacent sidewalks and parking strips.
RUNOFF: The waters derived from precipitation and/or melting snow within a tributary drainage basin that exceeds the infiltration capacity of that basin.
SEWAGE: Polluted stormwater, wastewater, or other refuse liquids usually conveyed by sewers.
SEWER: An artificial conduit to carry off sewage and/or surface water (as from rainfall), including sanitation, stormwater, and/or combined sewers.
SEWERAGE: A system of sewers and appurtenances for the collection, transportation, pumping, and treatment of sewage.
STORM DRAINAGE SYSTEM: A facility by which stormwater is collected and/or conveyed including, but not limited to, any roads with drainage systems, municipal streets, gutters, curbs, inlets, piped storm drains, pumping facilities, retention and detention basins, rivers, creeks, natural and humanmade or altered drainage channels, reservoirs, and other drainage structures.
STORMWATER: Any surface flow, runoff, and drainage from any form of natural precipitation, and resulting from such precipitation.
STRUCTURE: Anything that is erected or constructed. The term "structure" includes, without limitation: buildings, manufactured homes, tanks, dams, sewers, constructed channels, outfalls, parking lots, driveways, roads, sidewalks, and concrete patios.
WASTEWATER: Water that has been used and is not for reuse unless treated by a wastewater treatment facility.
WATERS OF THE UNITED STATES: As defined in the CWA, "waters of the United States" applies only to surface waters, rivers, lakes, estuaries, coastal waters, and wetlands. Not all surface waters are legally "waters of the United States". Generally, those waters include the following:
   A.   All interstate waters;
   B.   Intrastate waters used in interstate and/or foreign commerce;
   C.   Tributaries of the above;
   D.   Territorial seas at the cyclical high tide mark; and
   E.   Wetlands adjacent to all the above. (Ord. G-897, 9-8-2009, eff. 9-8-2009)