The following definitions shall be applicable
in this chapter:
AUTHORITY
The Village Board of the Village of Orfordville.
BIOCHEMICAL OXYGEN DEMAND (BOD)
The quantity of oxygen, expressed in mg/l, utilized in the
biochemical oxidation of organic matter under standard laboratory
procedures in five days at 20º C.
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 a building and conveys it to the building sewer
beginning three feet outside the building wall.
BUILDING DRAIN, STORM
A building drain which conveys stormwater or other clear
water drainage but not wastewater.
BUILDING SEWER
The extension from the building drain to the public sewer
or other place of disposal (also called "house connection").
BUILDING SEWER, STORM
A building sewer which conveys stormwater or other clear
water drainage but no sanitary or industrial sewage.
CLASSES OF USERS
The division of wastewater treatment customers by waste characteristics
and process or discharge similarities.
A.Â
RESIDENTIALIncludes all dwelling units, such as detached, semidetached, and row houses, mobile homes, garden and standard apartments, and permanent multifamily dwellings. (Transient lodging, considered commercial in nature, is not included.)
B.Â
COMMERCIALIncludes transient lodging, retail and wholesale establishments or places engaged in selling merchandise for personal, household or industrial consumption and/or rendering services to others.
C.Â
INSTITUTIONALIncludes social, charitable, religious and educational activities, such as schools, churches, hospitals, nursing homes, penal institutions and similar institutional users.
D.Â
GOVERNMENTALIncludes legislative, judicial, administrative, and regulatory activities of federal, state and local governments, such as courthouses, police and fire stations, city halls and similar governmental users.
E.Â
INDUSTRIALIncludes manufacturing activities involving the mechanical or chemical transformation of materials or substances into other products. These activities occur in establishments usually described as plants, factories or mills and characteristically use power-driven machines and material-handling equipment.
COLLECTOR SEWER
A sewer whose primary purpose is to collect wastewaters from
individual point source discharges.
COMPATIBLE POLLUTANT
Biochemical oxygen demand, suspended solids, pH and fecal
coliform bacteria, plus additional pollutants identified in the NPDES
permit if the treatment works was designed to treat such pollutants
and, in fact, does remove such pollutants to a substantial degree.
The term "substantial degree" is not subject to precise definition
but generally contemplates removals in the order of 80% or greater.
Minor incidental removals in the order of 10% to 30% are not considered
substantial. Examples of the additional pollutants which may be considered
compatible include:
C.Â
Phosphorus and phosphorus compounds;
D.Â
Nitrogen and nitrogen compounds; and
E.Â
Fats, oils and greases of animal or vegetable
origin (except as prohibited where these materials would interfere
with the operation of the treatment works).
DEPRECIATION
An annual operating cost reflecting capital consumption and
obsolescence (reduction of future service potential) of the treatment
works.
EASEMENT
An acquired legal right for the specific use of land owned
by others.
FECAL COLIFORM
Any of a number of organisms common to the intestinal tract
of man and animals, whose presence in sanitary sewage is an indicator
of pollution.
FLOATABLE OIL
Oil, fat or grease in a physical state such that will separate
by gravity from wastewater by treatment in a pretreatment facility
approved by the authority.
FORCE MAIN
A pipe in which wastewater is carried under pressure.
GARBAGE
Solid wastes from the domestic and commercial preparation,
cooking and dispensing of food and from the commercial handling, storage
and sale of produce.
INCOMPATIBLE POLLUTANT
Any pollutant that is not defined as a compatible pollutant,
including nonbiodegradable dissolved solids.
INDUSTRIAL COST RECOVERY
Recovery from the industrial users of a treatment works of
the grant amount allocable to treatment of wastes from such users
pursuant to Section 204(b) of PL 92-500 and 40 CFR 35.928(1) and (2).
INFILTRATION
The water entering a sewer system, including building drains
and sewers, from the ground through such means as, but not limited
to, defective pipes, pipe joints, connections, or manhole walls. (Infiltration
does not include and is distinguished from inflow.)
INFILTRATION/INFLOW
The total quantity of water from both infiltration and inflow
without distinguishing the source.
INFLOW
The water discharged into a sewer system, including building
drains and sewers, from such sources as, but not limited to, roof
leaders, cellar, yard and area drains, foundation drains, unpolluted
cooling water discharges, drains from springs and swampy areas, manhole
covers, cross-connections from storm sewers and combined sewers, catch
basins, stormwaters, surface runoff, street wash waters or drainage.
(Inflow does not include, and is distinguished from, infiltration.)
INTERCEPTOR SEWER
A sewer whose primary purpose is to transport wastewater
from collector sewers to a treatment facility.
MAJOR CONTRIBUTING INDUSTRY
An industry that:
A.Â
Has a flow of 10,000 gallons or more per average
workday;
B.Â
Has a flow greater than 5% of the flow carried
by the municipal system receiving the waste;
C.Â
Has in its waste a toxic pollutant in toxic
amounts as defined in standards issued under Section 307(1) of PL
92-500; or
D.Â
Has a significant impact, either singly or in
combination with other contributing industries, on a treatment works
or on the quality of effluent from that treatment works.
NATURAL OUTLET
Any outlet, including storm sewers and combined sewer overflows,
into a watercourse, pond, ditch, lake or other body of surface or
ground water.
NORMAL DOMESTIC SEWAGE
As defined for the purposes of determining surcharge, wastewater
or sewage having an average daily suspended solids concentration of
not more than 250 mg/l and average daily BOD of not more than 200
mg/l [an average daily phosphorus concentration of 11 mg/l and containing
not more than 2.5 mg/l of Hexane soluble matter (grease and oil)].
NPDES PERMIT
A permit issued under the National Pollutant Discharge Elimination
System for discharge of wastewaters to the navigable waters of the
United States pursuant to Section 402 of PL 92-500.
OPERATION AND MAINTENANCE COSTS
All costs, direct and indirect (other than debt service),
necessary to ensure adequate wastewater treatment on a continuing
basis, conform to all related federal, state and local requirements
and assure optimal long-term facility management. (These costs include
depreciation and replacement.)
PERSON
Any individual, firm, company, association, society, corporation
or group discharging any wastewater to the wastewater treatment works.
pH
The reciprocal of the logarithm of the hydrogen ion concentration.
The concentration is the weight of hydrogen ions in grams per liter
of solution.
PRETREATMENT
The treatment of industrial sewage from privately owned industrial
sources prior to introduction into a public treatment works.
PROPERLY SHREDDED GARBAGE
The wastes from the preparation, cooking and dispensing of
food that has been shredded to such a degree that all particles will
be carried freely under flow conditions normally prevailing in public
sewers, with no particular greater than 3/8 inch in any dimension.
PUBLIC AUTHORITY
Any governmental agency having jurisdiction by law over construction
and use of a wastewater collection or treatment facility.
PUBLIC SEWER
A sewer which is owned and controlled by the public authority.
PUMPING STATION
A station positioned in the public sewer service at which
wastewater is pumped to a higher level.
REPLACEMENT
Expenditures for obtaining and installing equipment, accessories
or appurtenances which are necessary during the service life of the
treatment works to maintain the capacity and performance for which
such works were designed and constructed.
SANITARY SEWER
A sewer which carries sanitary and industrial wastes and
to which storm-, surface and ground water are not intentionally admitted.
SEWAGE
The combination of the liquid and water-carried wastes from
residences, commercial buildings, industrial plants and institutions
(including polluted cooling water).