As used in this chapter, the following terms shall have the
meanings indicated:
AMMONIA NITROGEN
One of the oxidation states of nitrogen, in which nitrogen
is combined with hydrogen in molecular form as NH or in ionized form
as NH4. Quantitative determination of ammonia nitrogen shall be made
in accordance with procedures set forth in "Standard Methods" or Chapter
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 (mg/l). 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
A sanitary sewer which begins immediately outside of the
foundation wall of any building or structure being served, and ends
at its connection to the public sewer main, also known as a "lateral"
connection.
CATEGORY A
Those sanitary sewer users who discharge wastewater with
concentrations in excess of 250 mg/l of BOD, 250 mg/l of suspended
solids, 7 mg/l of phosphorus, or 30 mg/l of ammonia nitrogen. Users
whose wastewater exceeds the concentration of any one of these parameters
shall be in Category A.
COMBINED SEWER
A sewer intended to receive both wastewater and storm or
surface water.
COMPATIBLE POLLUTANTS
BOD, suspended solids, phosphorus, nitrogen, pH, or fecal
coliform bacteria, plus addition pollutants identified in the Village's
WPDES permit for its wastewater treatment facility; provided that
such facility is designed to treat such additional pollutants and,
in fact, does remove such pollutants to a substantial degree.
DEBT SERVICE
Costs to the sewer department for the retirement of debts
incurred in the provision of sewerage system facilities, including
both principal and interest.
EASEMENT
An acquired legal right for the specified use of land owned
by others.
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 oil if
it is properly pretreated and the wastewater does not interfere with
the collection system.
GROUND GARBAGE
The residue from the preparation, cooking, dispensing, handling,
storage, and sale of food products and produce that has been shredded
to such a degree that all particles will be carried freely in suspension
under the flow conditions normally prevailing in public waters with
no particle greater than 1/2 inch in any dimension.
INCOMPATIBLE POLLUTANTS
Wastewater with pollutants that will adversely affect the
wastewater treatment facilities or disrupt the quality of wastewater
treatment if discharged into the wastewater treatment facilities.
INDUSTRIAL WASTE
Any solid, liquid, or gaseous substance discharged or escaping
from any industrial, manufacturing, or commercial establishment. Such
term includes any wastewater which is not sanitary sewage.
NATURAL OUTLET
Any outlet, including storm sewers and combined sewer overflows,
into a watercourse, pond, ditch, lake, or other body of surface water
or groundwater.
NITROGEN
Kjeldahl nitrogen which is the sum of organic nitrogen and
ammonia nitrogen.
NORMAL DOMESTIC STRENGTH WASTEWATER
Wastewater with concentrations of BOD no greater than 250
mg/l, suspended solids no greater than 250 mg/l, ammonia nitrogen
no greater than 30 mg/l, and phosphorus no greater than 7 mg/l.
OPERATION AND MAINTENANCE COSTS
Includes all costs associated with the operation and maintenance
of the wastewater treatment facilities, including replacement costs,
as determined from time to time by the Village.
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 hydrogen ions, in grams per liter
of solution. Neutral water, for example, has a pH value of seven and
a hydrogen-ion concentration of 10 to the negative 7th power.
PHOSPHORUS
Total phosphorus and is expressed in mg/l of P (phosphorus).
PUBLIC SEWER
Any publicly owned sewer, storm drain, sanitary sewer, or
combined sewer.
REPLACEMENT COSTS
Expenditures for obtaining and installing equipment, accessories,
or appurtenances which are necessary during the useful life of the
wastewater treatment facility to maintain the capacity and performance
for which such facilities were designed and constructed. Operation
and maintenance costs include replacement costs.
SANITARY SEWAGE
A combination of liquid and water carried wastes discharged
from toilets and/or sanitary plumbing facilities.
SEWAGE
The spent water of a person or community. The preferred term
is "wastewater."
SEWER
A pipe or conduit that carries wastewater or drainage water.
SEWER SERVICE CHARGE
A charge levied on users of the wastewater treatment facilities
for payment of operation and maintenance expenses, debt service costs,
and other expenses or obligations of said facilities as determined
by the Village.
SHALL
Is mandatory; "may" is permissible.
SLUG
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/or
adversely affects the collection system and/or performance of the
wastewater treatment facility.
STANDARD METHODS
The examination and analytical procedures set forth in the
most recent edition of "Standard Methods for the Examination of Water
and Wastewater," published jointly by the American Public Health Association,
the American Water Works Association, and the Water Environment Federation.
[Amended at time of adoption of Code (see Ch. 1, General
Provisions, Art. II)]
STORM SEWER OR DRAIN
A drain or sewer for conveying water, groundwater, subsurface
water, or unpolluted water from any source.
SUSPENDED SOLIDS
Total suspended matter that either floats on the surface
of, or is in suspension in water, wastewater, or other liquids, and
that is removable by laboratory filtering as prescribed in "Standard
Methods for the Examination of Water and Wastewater" and referred
to as nonfilterable residue.
UNPOLLUTED WATER
Water quality equal to or better than the effluent of the
wastewater treatment facilities or water that would not cause violation
of receiving water quality standards and would not be benefited by
discharge to the sanitary sewers and wastewater treatment facilities.
USER CHARGE FACTOR (UCF)
A ratio of a user's annual water use divided by the
average residential water use. The average residential water usage
shall equal one UCF. In no case shall the UCF be less than one.
WASTEWATER
The spent water of a community or person. 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.
WASTEWATER TREATMENT FACILITY
An arrangement of devices and structures for treating wastewater
and sludge. Also referred to as "wastewater treatment plant."