Unless the context specifically indicates otherwise, the meaning
of terms used in this Chapter shall be as follows:
BOD (DENOTING BIOCHEMICAL OXYGEN DEMAND)
The quantity of oxygen utilized in the biochemical oxidation
of organic matter under standard laboratory procedure in five (5)
days at twenty degrees Celsius (20° C.), expressed in milligrams
per liter.
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 inner
face of the building wall.
BUILDING SEWER
The extension from the building drain to the public sewer
or other place of disposal.
GARBAGE
Solid wastes from the domestic and commercial preparation,
cooking and dispensing of food, and from the handling, storage and
sale of produce.
INDUSTRIAL WASTES
The liquid wastes from industrial manufacturing processes,
trade, or business as distinct from sanitary sewage.
NATURAL OUTLET
Any outlet into a watercourse, pond, ditch, lake or other
body of surface water or groundwater.
PERSON
Any individual, firm, company, association, society, corporation,
or group.
pH
The logarithm of the reciprocal of the weight of hydrogen
ions in grams per liter of solution.
PROPERLY SHREDDED GARBAGE
The wastes from the preparation, cooking and dispensing of
food that have been shredded to such a degree that all particles will
be carried freely under the flow conditions normally prevailing in
public sewers, with no particle greater than one-half (1/2) inch [one
and twenty-seven hundredths (1.27) centimeters] in any dimension.
PUBLIC SEWER
A sewer in which all owners of abutting properties have equal
rights, and is controlled by public authority.
SANITARY SEWER
A sewer which carries sewage and to which stormwater, surface
water and groundwater are not intentionally admitted.
SEWAGE
A combination of the water-carried wastes from residences,
business buildings, institutions, and industrial establishments, together
with such groundwater, surface water, and stormwaters as may be present.
SEWAGE WORKS
All facilities for collection, pumping, treating and disposing
of sewage.
SEWER
A pipe or conduit for carrying sewage.
SHALL
Is mandatory; "may" is permissive.
SLUG
Any discharge of water, sewage, or industrial waste which
in concentration of any given constituent or in quantity of flow exceeds
for any period of duration longer than fifteen (15) minutes more than
five (5) times the average twenty-four-hour concentration or flows
during normal operation.
SUPERINTENDENT
The Superintendent of Sewage Works and/or Water Pollution
Control of the City of Duquesne, or his/her authorized deputy, agent,
or representative.
SUSPENDED SOLIDS
Solids that either float on the surface of, or are in suspension
in, water, sewage, or other liquids, and which are removable by laboratory
filtering.
WATERCOURSE
A channel in which a flow of water occurs, either continuously
or intermittently.