Unless the context specifically indicates otherwise, the meanings
of terms used in these rules and regulations shall be as follows:
The quantity of oxygen utilized in the biochemical oxidation
of organic matter under standard laboratory procedure in five days
at 20° C. (68° F.) expressed in milligrams per liter (mg/l).
Measurement shall be set forth in the latest edition of "Standard
Methods for the Examination of Water and Waste Water."
The difference between the amount of chlorine added to water,
sewage or industrial wastes and the amount of residual chlorine remaining
at the end of a twenty-minute contact period at room temperature.
A sewer designed to receive and transport both surface runoff
and sewage.
The water discharged from any system of condensation, air-conditioning,
cooling, refrigeration or other sources. It shall contain no polluting
substances which would produce BOD or suspended solids in excess of
10 parts per million by weight or toxic substances as limited elsewhere
herein.
The County of Delaware in the Commonwealth of Pennsylvania.
Food wastes from the domestic and commercial preparation,
cooking and dispensing of food and from the handling, storage and
sale of produce.
The liquid wastes from industrial manufacturing processes,
trade or business, as distinct from sanitary sewage.
Any outlet into a watercourse, pond, ditch, lake or other
body of surface water or groundwater.
Sewage, industrial wastes or other wastes which, when analyzed,
show by weight the following characteristics:
Garbage (shredded or unshredded), refuse, wood, eggshells,
coffee grounds, sawdust, shavings, bark, sand, lime, cinder, ashes
and all other discarded matter not normally present in sewage or industrial
wastes.
Any individual, firm, company, association, society, corporation
or group contributing directly or indirectly to the Borough sewer
system.
The negative logarithm of the hydrogen-ion concentration
in moles per liter. It indicates the intensity of acidity and alkalinity
on the pH scale, running from 0.0 to 14.0. A pH value of 7.0, the
midpoint of the scale, represents neutrality. Values above 7.0 represent
alkaline conditions, and those below 7.0 represent acid conditions.
Garbage that has been shredded to such a degree that all
particles will be carried freely under the flow conditions normally
prevailing in the public sewer to which it is discharged, with no
particle having a dimension greater than 1/2 inch in any dimension.
A sewer controlled by a public body.
A natural watercourse or body of water into which treated
or untreated sewage is discharged.
Sewage discharging from the sanitary conveniences of dwellings
(including apartment houses and hotels), office buildings, factories
or institutions and free of stormwater, surface water, industrial
wastes and other wastes.
A sewer which carries sewage and to which stormwaters, surface
waters and groundwaters are not intentionally admitted.
A combination of the water-carried wastes from residences,
business buildings, institutions and industrial establishments, together
with such groundwater, surface water and stormwater as may be inadvertently
present. The admixture of "sewage," as above defined, with industrial
wastes or other wastes shall also be considered "sewage" within the
meaning of this definition.
A pipe or conduit for carrying sewage.
"Shall" is mandatory; "may" is permissive.
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.
A sewer which carries stormwaters and surface waters and
drainage, but excludes sewage and industrial wastes other than cooling
waters and other unpolluted waters.
Solids that either float on the surface of or are in suspension
in water, sewage or other liquids, and which are removable by flotation,
skimming and sedimentation. Measurement shall be as set forth in the
latest edition of "Standard Methods for the Examination of Water and
Waste Water."
Any substance, whether gaseous, liquid or solid, which, when
discharged to a public sewer in sufficient quantities, may be hazardous
to sewer district personnel, or may tend to interfere with any biological
sewage treatment process, or to constitute a hazard to human beings
or animals, or to inhibit aquatic life, or to create a hazard to recreation
in the receiving waters of the effluent from a sewage treatment plant.
Any arrangement of devices and structures used for treating
sewage.
