For the purpose of this subchapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
BOD (BIOCHEMICAL OXYGEN DEMAND). The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in 5 days at 20°C expressed in milligrams per liter. Laboratory procedures shall be in accordance with the latest edition of Standard Methods for the Examination of Water and Wastewater.
BUILDING DRAIN. The part of the lower horizontal piping of a drainage system which receives the discharge from soil, waste, and other drainage pipes inside the walls of the building and conveys it to the building sewer beginning 5 feet outside the inner face of the building wall.
BUILDING SEWER. The extension from the building drain to the public sewer or other place of disposal, also called house connection.
CITY. The area within the corporate boundaries of the City of Park Rapids, as presently established or as amended by ordinance or other legal actions at a future time. The term CITY when used herein may also be used to refer to the City Council and its authorized representatives.
COD (CHEMICAL OXYGEN DEMAND). The quantity of oxygen utilized in the chemical oxidation of organic matter, expressed in milligrams per liter, as determined in accordance with standard laboratory procedures as set out in the latest edition of Standard Methods for the Examination of Water and Wastewater.
COMBINED SEWER. A sewer originally designated to receive both surface water runoff and sewage.
GARBAGE. Solid waste resulting from the domestic and commercial preparation, cooking and dispensing of food and from the handling, storage or sale of meat, fish, fowl, fruit, vegetable or condemned food.
INDUSTRIAL WASTES. The solid, liquid, or gaseous wastes resulting from an industrial or manufacturing process, trade or business, or from the development, recovery, or processing of natural resources.
INFILTRATION. Water entering the sewage system (including building drain and pipes) from the ground through means such as defective pipes, pipe joints, connections, and manhole walls.
INFILTRATION/INFLOW (I/I). The total quantity of water from both infiltration and inflow.
INFLOW. Water other than wastewater that enters a sewer system (including building drains) from sources such as, but not limited to, roof leaders, cellar drains, yard and area drains, foundation drains, drains from springs and swampy areas, manhole covers, cross-connections from storm sewers, catch basins, surface runoff, street wash waters, or drainage.
NPDES PERMIT (NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM). The system for issuing, conditioning and denying permits for the discharge of pollutants from point sources into the navigable waters, the contiguous zone, and the oceans by the Environmental Protection Agency pursuant to the Federal Water Pollution Control Act of 1972, §§ 402 and 405, being 33 U.S.C. §§ 1342 and 1345.
NATURAL OUTLET. Any outlet into a watercourse, pond, ditch, lake or other body of surface groundwater.
NORMAL DOMESTIC STRENGTH WASTES. Wastes which are characterized by a composite average strength of 250 mg per liter BOD, and 285 mg per liter suspended solids.
OTHER WASTES. Garbage, municipal refuse, decayed wood, sawdust, shavings, bark, lime, sand, ashes, oil, tar, chemicals, offal, and other substances except sewage and other wastes.
PERSON. Any individual, firm, company, association, society, corporation, municipal corporation, governmental unit, or group.
pH. The logarithm of the reciprocal of the weight of hydrogen ions in grams per liter of solution.
PROCESS WATER. Any water used in the manufacturing, preparation or production of goods, materials or food. PROCESS WATER is an industrial waste.
PUBLIC SEWER. Any sewer owned or operated by a unit or agency of government.
SANITARY SEWER. A sewer which carries sewage and to which storm, surface, and groundwater are not intentionally admitted.
SANITARY WASTE. The liquid and water carried wastes discharged from sanitary plumbing facilities.
SEWAGE or WASTEWATER. The water carried waste products from residence, public buildings, institutions, industrial establishments, or other buildings including the excrementitious or other discharge from the bodies of human beings or animals, together with the ground, surface, and stormwaters as may be present.
SEWER. A pipe or conduit for carrying sewage, industrial wastes, or other waste liquids.
SEWER SYSTEM. Pipelines or conduits, pumping stations, forcemains and all other devices and appliances appurtenant thereto, used for collecting or conducting sewage, industrial wastes, or other wastes to a point of ultimate disposal.
SHALL or MAY. SHALL is mandatory. MAY is permissive.
SLUG. Any discharge of water, wastewater or industrial waste which in concentration of any given constituent, or in quantity of flow exceeds for any period of duration longer than 15 minutes more than 5 times the average 24 hour concentration of flows during the normal operation.
STORM SEWER or STORM DRAIN. A sewer which carries storm or surface water and drainage, but excludes sewage and industrial waste, other than unpolluted cooling or process water.
SUSPENDED SOLIDS. Solids that either float on the surface of or are in suspension in water, sewage, or other liquids and which are removable by laboratory filtering in accordance with the latest edition of Standard Methods for the Examination of Water and Wastewater.
UNPOLLUTED WATER. Clean water uncontaminated by industrial wastes, or any substance which renders the water unclean or noxious or impure so as to be actually or potentially harmful or detrimental or injurious to public health, safety or welfare to domestic, commercial, industrial or recreational uses; or to livestock, wild animals, birds, fish, or other aquatic life.
WASTEWATER FACILITIES. The structures, equipment, or processes required to collect, carry away, and treat domestic and industrial wastes and dispose of the effluent.
WASTEWATER TREATMENT WORKS or TREATMENT WORKS. An arrangement of devices and structures for treatment of wastewater, industrial waste and sludge. Sometimes used as synonymous for wastewater treatment plant or waste treatment plant or water pollution control plant or sewage treatment plant.
(Prior Code, § 62-51) (Ord. 234, passed 1987)