The following definitions are applicable to this chapter:
AMMONIA NITROGEN (NH3-N)
One of the oxidation states of nitrogen, in which nitrogen
is combined with hydrogen in molecular form as NH3 or in ionized form as NH4. Quantitative determination
of ammonia nitrogen shall be made in accordance with procedures set
forth in "Standard Methods" or Ch. NR 149, Wis. Adm. Code.
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 "Standard Methods."
BUILDING DRAIN
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.
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.
COMPATIBLE POLLUTANTS
Biochemical oxygen demand, suspended solids, phosphorus,
ammonia, or pH, plus additional pollutants identified in the WPDES
permit for the Village treatment works receiving the pollutant, if
such works were designated to treat such additional pollutants to
a substantial degree.
DOMESTIC WASTEWATER
Wastewater which contains 200 mg/l of BOD5 and 200 mg/l of suspended solids.
FLOATABLE OIL
Oil, fat or grease in a physical state such that it will
separate by gravity from wastewater by treatment in an approved pretreatment
facility. Wastewater shall be considered free of floatable fat if
it is properly pretreated and the wastewater does not interfere with
the collection of treatment system.
GARBAGE
The residue from the preparation, cooking and dispensing
of food, and from the handling, storage and sale of food products
and produce.
GROUND GARBAGE
The 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 WASTEWATER
Wastewater of such a strength that will adversely affect
or disrupt the wastewater treatment processes of effluent quality
or sludge quality if discharged to the sewerage system facility.
INDUSTRIAL WASTE
The wastewater from an industrial process, trade or business,
as distinct from sanitary sewage, including cooling water and the
discharge from sewage pretreatment facilities.
MAIN, SEWER
That portion of the underground sewage conveyance system
that is connected by manholes and is capable of being cleaned by use
of standard apparatus without entering into private property.
MAJOR CONTRIBUTING INDUSTRY
A nongovernmental user of the publicly owned wastewater facilities
which has a waste discharge equivalent to or more than 5,000 gallons
per average workday 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 on the publicly
owned treatment works either singly or in combination with other wastes
when so as defined in writing by the Village.
MUNICIPAL WASTEWATER
The 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 plants and institutions,
together with any groundwater, surface water, and stormwater that
may have inadvertently entered the sewerage system.
NATURAL OUTLET
Any outlet, including storm sewers, into a watercourse, pond,
ditch, lake or other body of surface water or groundwater.
PARTS PER MILLION
A 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.
PERSON
Any and all persons, including any individual, firm, company,
municipal or private corporation, association, society, institution,
enterprise, governmental agency, or other entity.
pH
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 7
and hydrogen ion concentration of 10-7.
SANITARY SEWAGE
A combination of liquid and water-carried wastes discharged
from toilets and/or sanitary plumbing facilities, together with such
groundwaters, surface waters, and stormwaters as may have inadvertently
entered the sewerage system.
SANITARY SEWER
A sewer that carries liquid and water-carried wastes from
residences, commercial buildings, industrial plants, and institutions,
together with minor quantities of groundwaters, stormwaters and surface
waters that are not admitted intentionally.
SEWAGE
The spent water of a community. The preferred term is "municipal
wastewater."
SEWER SERVICE AREAS
The areas presently served and anticipated to be served by
a municipal wastewater collection system.
SEWER SERVICE CHARGE
A 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.
SEWERAGE SYSTEM
All structures, equipment, manholes, conduits and pipes by
which sewage is collected, treated and disposed of, except plumbing
inside and in connection with buildings served and building sewers
from buildings to street main.
SEWER SYSTEM
The common sanitary sewers within a sewerage system which
are primarily installed to receive wastewaters directly from building
sewers and which include service connection fittings designed for
connection with those facilities. The facilities which convey wastewater
from individual structures, from private property to the public sanitary
sewer, or the 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 system owner.
SHOCK
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
which adversely affects the system and/or performance of the wastewater
treatment works.
SIGNIFICANT INDUSTRIAL USER
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), 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.
SLUG
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-four-hour
concentration of flows of the user during normal operation. For industrial
users, a more stringent definition of "slug" may be established.
STANDARD METHODS
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
Water Pollution Control Federation.
STORMWATER RUNOFF
That portion of the rainfall that is collected and drained
into storm sewers or which drains over the ground surface.
SUSPENDED SOLIDS
Solids that either float on the surface of or are in suspension
in water, wastewater or other liquids, and that are removable by laboratory
filtering as prescribed in "Standard Methods" and referred to as nonfilterable
residue.
WASTEWATER
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.
WASTEWATER FACILITIES
The structures, equipment and processes required to collect,
carry away, store and treat domestic and industrial waste and dispose
of the effluent and sludge.
WASTEWATER TREATMENT WORKS
An arrangement of devices and structures for treating wastewater,
industrial wastes, and sludge. Sometimes used as synonymous with waste
treatment.
WATERCOURSE
A natural or artificial channel for the passage of water,
either continuously or intermittently.
The Village Board shall have conducted an independent annual
audit, the purpose of which shall be to maintain the proportionality
between users and user classes of the user charge system and to ensure
that adequate revenues are available relative to increasing operation,
maintenance and replacement costs and debt retirement. The findings
and recommendations of this audit shall be published in the Village's
official newspaper.