Terms defined. Unless the context specifically indicates otherwise,
the meaning of terms used in this Part 2 shall be as follows:
BOD (denoting BIOCHEMICAL OXYGEN DEMAND)
The quantity of oxygen utilized in the biochemical oxidation
of organic matter in five days at 20° C., expressed in milligrams
per liter, as determined in accordance with the latest issue of the
American Public Health Association Standard Methods for the Examination
of Water and Waste Water or by a method acceptable to the State Department
of Health and other agencies having jurisdiction.
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,
beginning five feet (1.5 meters) outside the inner face of the building
wall.
BUILDING SEWER
The extension from the building drain to the public sewer
or other place of disposal.
DIRECTOR
The Director of Public Works of Cecil County, Maryland, or
his authorized representative.
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. A wastewater shall be considered free of floatable fat if
it is properly pretreated and the wastewater does not interfere with
the collection system.
GARBAGE
Solid wastes from the domestic and commercial preparation,
cooking and dispensing of food and from the handling, storage and
sale of produce.
INDUSTRIAL COST RECOVERY
Payments by industrial users of treatment works for that
portion of the cost of construction of such treatment works which
is allocable to the treatment of such industrial wastes.
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, public
or private corporation, the state or other entity whatsoever.
pH
The logarithm of the reciprocal of the hydrogen ions concentration.
PRETREATMENT
Treatment of wastewaters from sources before introduction
into the joint treatment works.
PROPERLY SHREDDED GARBAGE
The wastes from the preparation, cooking and dispensing of
food, which wastes have been shredded to such a degree that all articles
will be carried freely under the flow conditions normally prevailing
in public sewers, with no particle greater than 1/2 inch (1.27 centimeters)
in any dimension.
PUBLIC SEWER
A sewer in which all owners of abutting properties have equal
rights and which is controlled by a public authority.
SANITARY SEWER
A sewer which carries sewage and to which storm-, surface,
and ground waters are not intentionally admitted.
SEWAGE
A combination of water-carried wastes from residences, business
buildings, institutions and industrial establishments, together with
such ground-, surface and stormwaters as may be present.
SEWAGE WORKS
All facilities for collecting, pumping, treating and disposing
of sewage.
SEWER
A pipe or conduit for carrying sewage.
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 15 minutes more than
five times the average twenty-four-hour concentration or flow during
normal operation.
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.
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.
WASTEWATER FACILITIES
The structures, equipment and processes required to collect,
carry away and treat domestic and industrial wastes and dispose of
the effluent.
WATERCOURSE
A channel in which a flow of water occurs, either continuously
or intermittently.