Unless the context specifically indicates otherwise,
the meaning of terms used in this chapter shall be as follows:
BIOCHEMICAL OXYGEN DEMAND (BOD)
The quantity of oxygen utilized in the biochemical oxidation of organic
matter under standard laboratory procedure in five days at 20° C., expressed
in milligrams per liter.
BUILDING DRAIN
That part of the lowest horizontal piping of a drainage system which
receives wastewater from inside the building and conveys it to the building
sewer.
BUILDING SEWER
The extension from the building drain to the sanitary sewer (also
called "house connection").
COMBINED SEWER
A sewer intended to receive both wastewater and stormwater or surface
water.
EASEMENT
An acquired legal right for the specific 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.
GARBAGE
All discarded substances, refuse and trash, including leavings and
waste resulting from the handling, preparation, cooking and serving of foods.
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.
PERSON
Any individual, firm, company, association, society, corporation
or group.
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.
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 1/2 inch (1.27 centimeters) in any dimension.
PUBLIC SEWER
A sewer controlled by a governmental agency or public utility.
SANITARY SEWER
A sewer that carries liquid and water-carried wastes from residences,
commercial buildings, industrial plants and institutions.
SEWAGE
The spent water of a community. The preferred term is "wastewater."
(See definition of "wastewater.")
SEWER
A pipe or conduit that carries wastewater.
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
or flows during normal operation.
SUPERINTENDENT
The Town Engineer or authorized deputy, agent or representative.
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."
TOWN
The Commissioners of Ridgely, and generally refers to the paperwork
available at the town office from the Town Clerk/Treasurer.
UNPOLLUTED WATER
Water of quality equal to or better than the effluent criteria in
effect 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 provided.
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.
WASTEWATER FACILITIES
The structures, equipment and processes required to collect, carry
away and treat domestic and industrial wastes and dispose of the effluent.
WASTEWATER TREATMENT WORKS
An arrangement of devices and structures for treating wastewater,
industrial wastes and sludge (synonymous with "waste treatment plant" or "wastewater
treatment plant" and "water pollution control plant").
WATERCOURSE
A natural or artificial channel for the passage of water either continuously
or intermittently.