The following definitions are applicable to this article:
The quantity of oxygen utilized in the biochemical oxidation of organic matter in five days at 20° C., expressed as milligrams per liter. Quantitative determination of BOD shall be made in accordance with procedures set forth in "Standard Methods."
That part of the lowest 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.
The extension from the building drain to the public sewer or other place of disposal beginning outside the inner face of the building wall.
The residue from the preparation, cooking, and dispensing of food, and from the handling, storage, and sale of food products and produce.
The wastewater from industrial process, trade, or business, as distinct from sanitary sewage, including cooling water and the discharge from sewage pretreatment facilities.
A nongovernmental user of publicly owned treatment works which has a waste discharge equivalent to or more than 5,000 gallons per average work day of domestic wastewater in terms of flow, BOD or suspended solids, which has an average work day discharge flow greater than 5% of the average daily flow received at the wastewater treatment plant, which has a toxic pollutant in toxic amounts defined by Ch. NR 215, Wis. Adm. Code, or which has a major impact defined in writing by the Village, either singly or in combination with other wastes on the publicly owned treatment works.
Any and all persons, including any individual, firm, company, municipal or private corporation, association, society, institution, enterprise, governmental agency, or other entity.
The logarithm of the reciprocal of the hydrogen ion concentration. The concentration is the weight of the hydrogen ions, in grams per liter of solution. Neutral water, for example, has a pH value of seven and hydrogen ion concentration of 10-7.
A sewer that carries liquid and water-carried wastes from residences, commercial buildings, industrial plants, and institutions, together with minor quantities of ground, storm and surface waters that are not admitted intentionally.
Any discharge of water or wastewater which in concentration of any given constituent or in quantity of flow exceeds for any period of duration longer than 15 minutes more than five times the average twenty-four-hour concentration of flows during normal operation and shall adversely affect the system and/or performance of the wastewater treatment works.
A nongovernmental user which is required to file effluent reports for discharges made to the public sanitary sewer collection system by Ch. NR 101, Wis. Adm. Code (which includes, but is not limited to, any facility whose discharge is a volume greater than 10,000 gallons per day and contains one or more of the industrial wastes or toxic and hazardous substances defined in Ch. NR 101, Wis. Adm. Code, or whose discharge is less than 10,000 in gallons per day, but is subject to a pretreatment standard) which is classified as a major contributing industry, or which has been notified in writing by the DNR that it is necessary to provide the agency with information concerning the concentration and quantity of pollutants discharged.
Any discharge of sewage or industrial wastewater, the concentration of any constituent of which or the quantity of flow which exceeds instantaneously more than five times the average twenty-five-hour concentration or flows of the user during normal operation. For industrial users, a more stringent definition of "slug" may be established.
The document so entitled, published by the Office of Management and Budget, latest edition.
The examination and analytical procedures set forth in the most recent edition of Standard Methods for the Examination of Water, Sewage, and Industrial Wastes, published jointly by the American Public Health Association, the American Water Works Association, and the Federation of Sewage and Industrial Wastes Associations.
A drain or sewer for conveying water, groundwater, subsurface water or unpolluted water from any source.
Solids that either float on the surface of, or are in suspension in, water, wastewater, or other liquids, and that is removable by laboratory filtering as prescribed in Standard Methods for Examination of Water and Wastewater and is referred to as nonfilterable residue.
The spent water of a community. From the standpoint of source, it may be a combination of the liquid and water-carried wastes from residences, commercial buildings, industrial plants, and institutions; together with any groundwater, surface water, and stormwater that may be present, but not intentionally admitted.
An arrangement of devices and structures for treating wastewater, industrial wastes, and sludge. Sometimes used as synonymous with "waste treatment."
A natural or artificial channel for the passage of water, either continuously or intermittently.
A document issued by the Wisconsin State Department of Natural Resources which establishes effluent limitations and monitoring requirements for the municipal wastewater treatment facility.
