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.
[Amended 4-13-1987]
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; such discharge is subject to state and federal
regulations.
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, including but not limited
to cyanides in excess of two milligrams per liter as CN in the wastes as discharged
to the public sewer.
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.
[Amended 4-13-1981]
No person shall discharge or cause to be discharged the following-described
substances, materials, waters or wastes if it appears likely in the opinion
of the Superintendent that such wastes can harm either the sewers, sewage
treatment process or equipment, have an adverse effect on the receiving stream
or can otherwise endanger life, limb, public property or constitute a nuisance.
In forming his opinion as to the acceptability of these wastes, the Superintendent
will give consideration to such factors as the quantities of subject wastes
in relation to flows and velocities in the sewers, materials of construction
of the sewers, nature of the sewage treatment process, capacity of the sewage
treatment plant, degree of treatability of wastes in the sewage treatment
plant and other pertinent factors. All discharges shall comply with the regulations
promulgated pursuant to § 307 of the Act and, in particular, with
the limits for toxics established pursuant to § 307 of the Act.
The categorical standards of the general pretreatment regulations are deemed
included herein upon their promulgation. The substances prohibited are:
A.
Any liquid or vapor having a temperature higher than
150° F. (65° C.), and any discharge that causes the influent to the
treatment works to have a temperature higher than 104° F. (40° C.).
[Amended 4-13-1981]
B.
Any water or waste containing fats, wax, grease or oils,
whether emulsified or not, in excess of 100 milligrams per liter or containing
substances which may solidify or become viscous at temperatures between 32°
and 150° F. (0° and 65° C.).
C.
Any garbage that has not been properly shredded. The
installation and operation of any garbage grinder equipped with a motor of
3/4 horsepower (0.76 horsepower metric) or greater shall be subject to the
review and approval of the Superintendent.
D.
Any waters or wastes containing strong acid iron pickling
wastes or concentrated plating solutions, whether neutralized or not.
E.
Any waters or wastes containing iron, chromium, copper,
zinc and similar objectionable or toxic substances; or wastes exerting an
excessive chlorine requirement to such degree that any such material received
in the composite sewage at the sewage treatment works exceeds the limits established
by the Superintendent for such materials.
F.
Any waters or wastes containing phenols or other taste-
or odor-producing substances in such concentrations as exceed limits which
may be established by the Superintendent as necessary, after treatment of
the composite sewage, to meet the requirements of the state, federal or other
public agencies of jurisdiction for such discharge to the receiving waters.
G.
Any radioactive wastes or isotopes of such half-life
or concentration as may exceed limits established by the Superintendent in
compliance with applicable state or federal regulations.
H.
Any waters or wastes having a pH in excess of 9.5.
I.
Materials which exert or cause:
(1)
Unusual concentrations of inert suspended solids, such
as but not limited to sodium chloride and sodium sulfate.
(2)
Excessive discoloration, such as but not limited to dye
wastes and vegetable tanning solutions.
(3)
Unusual BOD, chemical oxygen demand or chlorine requirements
in such quantities as to constitute a significant load on the sewage treatment
works.
(4)
Unusual volume of flow or concentration of wastes constituting
slugs as defined herein.
J.
Waters or wastes containing substances which are not
amenable to treatment or reduction by the sewage treatment processes employed,
or are amenable to treatment only to such degree that the sewage treatment
plant effluent cannot meet the requirements of other agencies having jurisdiction
over discharge to the receiving waters.
A.
If any waters or wastes are discharged or are proposed to be discharged to the public sewers, which waters contain the substances or possess the characteristics enumerated in § 119-27 and which in the judgment of the Superintendent may have a deleterious effect upon the sewage works, processes, equipment or receiving waters or which otherwise create a hazard to life or constitute a public nuisance, the Superintendent may:
B.
If the Superintendent permits the pretreatment or equalization
of waste flows, the design and installation of the plants and equipment shall
be subject to the review and approval of the Superintendent and subject to
the requirements of all applicable codes, ordinances and laws.
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 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 this Part 1 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 provided or upon suitable samples
taken at said 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.
[Amended 4-13-1981]
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.
Any special agreement or arrangement between the town and any industrial concern
shall be made within any applicable state and federal regulations.
