For the purpose of this article, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   AREA DRAIN. A receptacle designed to collect and convey surface or storm water to the drainage system.
   BEST MANAGEMENT PRACTICES (BMPs). The schedules of activities, prohibitions of practices, general good housekeeping practices, pollution prevention and educational practices, maintenance procedures, and other management practices to prevent or reduce the discharge of pollutants directly or indirectly to storm water, receiving waters, or storm water conveyance systems that are identified and adopted by the city. BMPs also include treatment practices, operating procedures, and practices to control site runoff, spillage or leaks, sludge or water disposal, or drainage from raw materials storage.
   CLEARWATER. Any surface flow, runoff, and drainage that does not contain any hazardous substance or sewage. This includes, but is not limited to, NPDES permitted discharges, storm water and water from foundation and footing drains and basement sump pumps.
   COMBINED SEWER. A sewer that must handle flow of both sanitary wastewater and storm water in a single pipeline.
   COMBINED SEWER OVERFLOW (CSO). Occurs when excessive amounts of rainfall enter a sanitary sewer system. The result is a volume of rainwater and sanitary wastewater, which exceeds the system’s capacity. Combined rainwater and sewage is forced to overflow into area streams and rivers through outfalls.
   HAZARDOUS SUBSTANCES. Materials which may cause or contribute to a substantial hazard to human health, safety, property or the environment based upon its quantity, concentration, physical, chemical, or infectious nature. These may include:
      (1)   Any gasoline, benzene, naphtha, fuel oil, or other flammable or explosive liquid, solid or gas.
      (2)   Any waters containing toxic or poisonous solids, liquids, or gases in sufficient quantity, either singly or by interaction with other wastes, to injure or interfere with any sewage treatment process, constitute a hazard to humans or animals, or create any hazard in the receiving waters or the wastewater treatment plant.
      (3)   Any waters or wastes having a pH lower than 5.5, or having any other corrosive property capable of causing damage or hazard to structures, equipment, and personnel of the wastewater works.
   ILLICIT CONNECTION. Any drain or conveyance, whether on the surface or subsurface, which allows an illegal discharge to enter the storm drain system, including but not limited to, any conveyances which allow any non-storm-water discharge, including sewage, process wastewater, and wash water, to enter the storm drain system, and any connections to the storm drain system from indoor drains and sinks, regardless of whether the drain or connection had been previously allowed, permitted, or approved by the city; or any drain or conveyance connected from a commercial or industrial land use to the storm drain system which has not been documented in plans, maps, or equivalent records and approved by the city.
   ILLICIT DISCHARGE. Any direct or indirect non-storm-water discharge to the storm drain system, except exempted in § 8.704.
   LIQUID WASTE. The discharge from any fixture, appliance, or appurtenance that does not receive fecal matter.
   MUNICIPAL SEPARATE STORM SEWER SYSTEM (MS4). The system of conveyances (including sidewalks, roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, manmade channels, or storm drains) owned and operated by the city, and designed or used for collecting or conveying storm water, and is not used for collecting or conveying sewage.
   NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) STORM WATER DISCHARGE PERMIT. A permit issued by the Environmental Protection Agency (or by a state under authority delegated pursuant to 33 U.S.C. § 1342(b)) that authorizes the discharge of pollutants to waters of the United States, whether the permit is applicable on an individual, group, or general area.
   NON-STORM-WATER DISCHARGE. Any discharge to the storm drain system that is not composed entirely of storm water.
   OWNER. The person who is listed as property owner or taxpayer by Anoka County.
   POLLUTANT.  Anything which causes or contributes to pollution. POLLUTANTS may include, but are not limited to: paints, varnishes, and solvents; oil and other automotive fluids; non-hazardous liquid and solid wastes and yard wastes; refuse, rubbish, garbage, litter, or other discarded or abandoned objects, ordinances, and accumulations, so that same may cause or contribute to pollution; floatables; pesticides, herbicides, and fertilizers; hazardous substances and wastes; sewage, 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.
   RUNOFF. Precipitation and other surface drainage that is not infiltrated into or otherwise retained by the soil, concrete, asphalt, or other surface upon which it falls.
   SANITARY SEWER SYSTEM. Pipelines, pumping stations, force mains, and all other construction devices, and mechanical devices used for conveying sewage or industrial waste or other wastes to a point of ultimate disposal.
   STORM DRAIN SYSTEM. The publicly-owned facilities by which storm water is collected 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, natural and human-made or altered drainage channels, reservoirs, and other drainage structures.
   STORM WATER POLLUTION PREVENTION PLAN (SWPPP). A document which describes the best management practices and activities to be implemented by a person or business to identify sources of pollution or contamination at a site, and the actions to eliminate or reduce pollutant discharges to storm water, storm water conveyance systems, and/or receiving waters to the maximum extent practicable.
   WASTEWATER. Any water or other liquid, other than uncontaminated storm water, discharged from a facility.
   STORM WATER. Any surface flow, runoff, and drainage consisting entirely of water from any form of natural precipitation.
(Ord. 1472, passed 7-12-04; Am. Ord. 1618, passed 2-9-15; Am. Ord. 1674, passed 4-25-22)