No person shall discharge or cause to be discharged any stormwater,
surface water, groundwater, roof runoff, subsurface drainage, uncontaminated
cooling water, or unpolluted industrial process waters to any sanitary sewer.
Stormwater and all other unpolluted drainage shall be discharged to
such sewers as are specifically designated as storm sewers or to a natural
outlet approved by the Superintendent. Industrial cooling water or unpolluted
process waters may be discharged, on approval of the Superintendent, to a
storm sewer or natural outlet.
No person shall discharge or cause to be discharged any of the following
described waters or wastes to any public sewers:
A. Any gasoline, benzene, naphtha, fuel oil, or other flammable
or explosive liquid, solid, or gas.
B. Any waters or wastes containing toxic or poisonous solids,
liquids or gases in sufficient quantity, either singly or by interaction with
other wastes, to injure or interfere with any sewage treatment process, constitute
a hazard to humans or animals, create a public nuisance, or create any hazard
in the receiving waters of the sewage treatment plant.
C. Any waters or wastes having a pH lower than 5.5 or having
any other corrosive property capable of causing damage or hazard to structures,
equipment and personnel of the sewage works.
D. Solid or viscous substances in quantities or of such
size capable of causing obstruction to the flow in sewers or other interference
with the proper operation of the sewage works, such as, but not limited to,
ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers,
tar, plastics, wood, unground garbage, whole blood, paunch manure, hair and
fleshings, entrails and paper dishes, cups, milk containers, etc., either
whole or ground by garbage grinders.
Grease, oil and sand interceptors shall be provided when, in the opinion
of the Superintendent, they are necessary for the proper handling of liquid
wastes containing grease in excessive amounts, or any flammable wastes, sand,
or other harmful ingredients, except that such interceptors shall not be required
for private living quarters or dwelling units. All interceptors shall be of
a type and capacity approved by the Superintendent and shall be located so
as to be readily and easily accessible for cleaning and inspection.
Where preliminary treatment or flow-equalizing facilities are provided
for any waters or wastes, they shall be maintained continuously in satisfactory
and effective operation by the owner at his expense.
When required by the Superintendent, the owner of any property serviced
by a building sewer carrying industrial wastes shall install a suitable control
manhole together with such necessary meters and other appurtenances in the
building sewer to facilitate observation, sampling, and measurement of the
wastes. Such manhole, when required, shall be accessibly and safely located
and shall be constructed in accordance with plans approved by the Superintendent.
The manhole shall be installed by the owner at his expense and shall be maintained
by him so as to be safe and accessible at all times.
All measurements, tests and analyses of the characteristics of waters
and wastes to which reference is made in these rules and regulations shall
be determined in accordance with the latest edition of Standard Methods for
the Examination of Water and Wastewater, published by the American Public
Health Association, and shall be determined at the control manhole. In the
event that no special manhole has been required, the control manhole shall
be considered to be the nearest downstream manhole in the public sewer to
the point at which the building sewer is connected. Sampling shall be carried
out by customarily accepted methods to reflect the effect of constituents
upon the sewage works and to determine the existence of hazards to life, limb
and property. (The particular analyses involved will determine whether a twenty-four-hour
composite of all outfalls of a premises is appropriate or whether a grab sample
or samples would be taken. Normally, but not always, BOD and suspended solids
analyses are obtained from twenty-four-hour composites of all outfalls whereas
pH's are determined from periodic grab samples.)
No statement contained in this article shall be construed as preventing
any special agreement or arrangement between the Town and any industrial concern
whereby an industrial waste of unusual strength or character may be accepted
by the Town for treatment, subject to payment therefor by the industrial concern.