[Amended 11-23-1999 by Ord. No. 967]
Unless the context specifically indicates otherwise, the meaning of terms used in this chapter shall be as follows:
AMMONIA NITROGEN (NH3-N)One of the oxidation states of nitrogen, in which nitrogen is combined with hydrogen in molecular form as NH
3 or in ionized form as NH
4. Quantitative determination of ammonia nitrogen shall be made in accordance with procedures set forth in "standard methods" or Ch. NR
149, Wis. Adm. Code.
AUTHORITYThe City of Neillsville or its duly authorized committee, agent, or representative.
BIOCHEMICAL OXYGEN DEMAND (BOD)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 the most recent edition of "Standard Methods."
BUILDING DRAINThat part of the lowest horizontal piping of a drainage system which receives the discharge from soil, waste, and other drainage pipes inside the wall of the building and conveys it to the building sewer.
BUILDING INSPECTORThe Director of Public Works of Neillsville, who shall act for the City of Neillsville Sewer Utility unless otherwise noted.
BUILDING SEWERThe extension from the public sewer or other place of disposal beginning outside the inner face of the building wall.
CHEMICAL ELEMENTS AND COMPOUNDSTypically found in wastewater, and which may be regulated by this chapter, are as follows:
Aldrin | Cyanide | Lead |
Ammonia Nitrogen | DDT | Lindane |
Arsenic | DDD | Mealthion |
Benzene | DDE | Mercury |
Benzo(a) Anthracene | Dieldrin | Molybdenum |
Benzo(a) pyrene | 3,3-Dichlorbenzidine | Nickel |
Beryllium | Dichloromethane | Nitrogen |
BIS (2-Ethylhexyl) Phtalate | 2,4-D | PCB's |
Cadmium | Dimethyl Nitrosoamine | Phosphorus |
Carbon Tetrachloride | Endrin | |
Chloradane | Heptachlor | |
Chloroform | Hexachlorobenzene | |
Copper | Hexachlorobutadiene | |
Chromium | | |
COMPATIBLE POLLUTANTSBiochemical oxygen demand, suspended solids, phosphorus, ammonia, or pH, plus additional pollutants identified in the WPDES permit for the publicly owned treatment works receiving the pollutant, if such works were designed to treat such additional pollutants to a substantial degree.
FLOATABLE OILOil, fat, or grease in a physical state such that it will separate by gravity from wastewater by treatment in an approved pretreatment facility. A wastewater or septage shall be considered free of floatable fat if it is properly pretreated and the wastewater does not interfere with the collection of treatment system.
GARBAGEThe residue from the preparation, cooking, and dispensing of food, and from the handling, storage, and sale of food products and produce.
GROUND GARBAGEThe residue from the preparation, cooking, and dispensing of food that has been shredded to such degree that all particulates will be no greater than 1/2 inch in any dimension and will be carried freely in suspension under normal flow conditions in sewers.
INCOMPATIBLE POLLUTANTS OR WASTEWATERWastewater or septage with pollutants or of such a strength that will adversely affect or disrupt the wastewater treatment process or effluent quality or sludge quality if discharged to the sewerage pretreatment facilities.
INDUSTRIAL WASTEThe wastewater from industrial process, trade, or business, as distinct from sanitary sewage, including cooling water and the discharge from sewage pretreatment facilities.
LICENSED DISPOSERA person or business holding a valid license to do septage servicing under Ch. NR
113, Wis. Adm. Code.
MUNICIPAL WASTEWATERThe wastewater 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 plans and institution, together with any groundwater, surface water, and stormwater that may have inadvertently entered the sewerage system.
NATURAL OUTLETAny outlet, including storm sewers, into a watercourse, pond, ditch, lake or other body of surface water or groundwater.
NITROGENKjeldahl nitrogen which is the sum of organic nitrogen and ammonia nitrogen.
PARTS PER MILLIONA weight-to-weight ratio; the parts per million value multiplied by the factor 8.34 shall be equivalent to pounds per million gallons of water.
PERSONAny and all persons, including any individual, firm, company, municipal or private corporations, association, society, institution, enterprise, government agency, or other entity.
pHThe logarithm of the reciprocal of hydrogen ion concentration. The concentration is the weight of hydrogen ions, in grams per liter of solution. Neutral water, for example, has a pH value of 7 and a hydrogen ion concentration of 10-7.
PHOSPHORUSPhosphorus shall be total phosphorus converted and reported as orthophosyhate.
PUBLIC SEWERAny sewer provided by or subject to the jurisdiction of the City of Neillsville.
SANITARY SEWERA sewer carries liquid and water-carried wastes from residences, commercial buildings, industrial plants, and institutions, together with small quantities of groundwater, stormwater, and surface waters that are not admitted intentionally.
SANITARY SEWERAGEA combination of liquid and water-carried wastes discharged from toilets and/or sanitary plumbing facilities, together with such groundwater, surface water, and stormwater as may have inadvertently entered the sewerage system.
SEPTAGEThe wastewater or contents of specific or holding tanks, dosing chambers, grease interceptors, seepage beds, seepage pits, seepage trenches, privies or portable rest rooms.
SEWAGEThe spent water of a community. The preferred term is "municipal wastewater."
SEWER SERVICE AREASThe areas presently served and anticipated to be served by a municipal wastewater collection system.
SEWER SERVICE CHARGEA service charge levied on users of the wastewater collection and treatment facilities for payment of use-related capital expenses as well as the operation and maintenance costs, including replacement of said facilities.
SEWER SYSTEMThe common sanitary sewers within a sewerage system which are primarily installed to receive wastewater directly from facilities which convey wastewater from individual structures or from private property, and which include service connection "Y" fittings designed for connection with those facilities. The facilities which convey wastewater from individual structures, from private property to the public sanitary sewer or its equivalent, are specifically excluded from the definition of "sewerage collection system," except that pumping units and pressurized lines for individual structures or groups of structures may be included as part of a sewer system when such units are cost-effective and are owned and maintained by the sewerage owner.
SEWERAGE SYSTEMAll structures, conduits and pipes by which sewage is collected, treated, and disposed of, except plumbing inside and in connection with buildings served and service pipes from building to street main.
SHALLMeans it is mandatory.
SLUG LOADAny substance released at a discharge rate and/or concentration which causes interference to wastewater treatment processes or plugging or surcharging of the sewer system.
STANDARD METHODSThe examination and analytical procedures set forth in the most recent edition of "Standard Methods for the Examination of Water and Wastewater," promulgated by the American Public Health Association, American Water Works Association and Water Environment Federation.
STORMWATER RUNOFFThat portion of the rainfall that is collected and drained into the storm sewers.
SUSPENDED SOLIDSSolids that either float on the surface of, or are in suspension in, water, wastewater, septage, or other liquids, and that is removable by laboratory filtering as prescribed in "Standard Methods" and is referred to as "nonfilterable residue."
UTILITYThe City of Neillsville Sewer Utility.
WASTEWATER FACILITIESThe structures, equipment, and processes required to collect, carry away, store, and treat domestic and industrial waste and septage and dispose of the effluent and sludge.
WASTEWATER TREATMENT WORKSAn arrangement of devices and structures for treating wastewater, septage, industrial waste, and sludge. Sometimes used as synonymous with "waste treatment."
WATERCOURSEA natural or artificial channel for the passage of water, either continuously or intermittently.