No person shall discharge or cause to be discharged
any stormwater, surface water, groundwater, roof runoff, subsurface
drainage, uncontaminated cooling water or unpolluted process waters
to any sanitary sewer.
Stormwater and all other unpolluted drainage
shall be discharged to such public sewers as are specifically designated
as storm sewers. Proposed and existing discharges of industrial cooling
water or unpolluted process waters to a natural outlet may be subject
to review and approval by the commonwealth or the United States Environmental
Protection Agency.
Except where expressly authorized to do so by
an applicable categorical pretreatment standard, no user shall ever
increase the use of process water or in any other way attempt to dilute
the discharge as a partial or complete substitute for adequate treatment
to achieve compliance with a categorical pretreatment standard. The
control authority may impose mass limitations on industrial users
which are using dilution to meet applicable pretreatment standards
or in other cases where the imposition of mass limitations is appropriate.
No user shall contribute or cause to be contributed,
directly or indirectly, any pollutant or wastewater which will pass
through the POTW or interfere with the operation or performance of
the POTW. These general prohibitions apply to all such users of a
POTW whether or not the user is subject to national categorical pretreatment
standards or any other national, state, or local pretreatment standards
or requirement. All users are prohibited from contributing the following
substances to any POTW:
A.
Any liquids, solids or gases which by reason of their
nature or quantity are or may be sufficient either alone or by interaction
with other substances to cause fire or explosion or be injurious in
any other way to the POTW or to the operation of the POTW. At no time
shall two successive readings on an explosion hazard meter at the
point of discharge into the system (or any point in the system) be
more than 5%, nor any single reading over 10% of the lower explosive
limit (LEL) of the meter. Prohibited materials include, but are not
limited to, gasoline, kerosene, naphtha, benzene, toluene, xylene,
ether, alcohols, ketones, aldehydes, peroxides, chlorates, perchlorates,
bromates, carbides, hydrides and sulfides and any other substances
which the Town, the state or EPA has notified the user is a fire hazard
or a hazard to the system.
B.
Solid or viscous substances which may cause obstruction
to the flow in a sewer or other interference with the operation of
the wastewater treatment facilities, such as, but not limited to:
grease, garbage with particles greater than 1/2 inch in any dimension,
animal guts or tissues, paunch, manure, bones, hair, hides or fleshings,
entrails, whole blood, feathers, ashes, cinders, sand, spent lime,
stone or marble dust, metal, glass, straw, shavings, grass clippings,
rags, spent grains, spent hops, wastepaper, wood plastics, gas, tar,
asphalt residues, residues from refining, or processing of fuel or
lubricating oil, mud or glass grinding or polishing wastes.
C.
Any wastewater having a pH less than 5.5, or wastewater
having any other corrosive property capable of causing damage or hazard
to structures, equipment, and/or personnel of the POTW.
D.
Any wastewater containing toxic pollutants in sufficient
quantity, either singly or by interaction with other pollutants, to
injure or interfere with any wastewater treatment process, constitute
a hazard to humans or animals, create a toxic effect in the receiving
waters of the POTW, or to exceed the limitation set forth in a categorical
pretreatment standard. A toxic pollutant shall include but not be
limited to any pollutant identified pursuant to Section 307 (a) of
the Act.
E.
Any noxious or malodorous liquids, gases or solids
which singly or by interaction with other wastes are sufficient to
create a public nuisance or hazard to life or are sufficient to prevent
entry into the sewers for maintenance and repair.
F.
Any substance which may cause the POTW's effluent
or any other product of the POTW, such as residues, sludges, or scums,
to be unsuitable for reclamation and reuse or to interfere with the
reclamation process. In no case shall a substance discharged to the
POTW cause the POTW to be in noncompliance with sludge use or disposal
criteria, guidelines or regulations developed under Section 405 of
the Act; any criteria, guidelines or regulations affecting sludge
use or disposal developed pursuant to the Solid Waste Disposal Act,
the Clean Air Act, the Toxic Substances Control Act; or state criteria
applicable to the sludge management method being used.
G.
Any substance which will cause the POTW to violate
its NPDES and/or state disposal system permit or the receiving water
quality standards.
H.
Any wastewater with objectionable color not removed
in the treatment process, such as, but not limited to, dye wastes
and vegetable tanning solutions.
I.
Any wastewater having a temperature which will inhibit
biological activity in the POTW treatment plant resulting in interference,
but in no case wastewater with a temperature at the introduction into
the POTW which exceeds 40° C. (104° F.).
J.
Any pollutants, including oxygen-demanding pollutants
(BOD, etc.) released at a flow rate and/or pollutant concentration
which will cause interference to the POTW. In no case shall a slug
load have a flow rate or contain concentration or qualities of pollutants
that exceed for any time period longer than 15 minutes more than five
times the average twenty-four-hour concentration, quantities or flow
during normal operation.
K.
Any wastewater containing 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.
L.
Any wastewater which causes a hazard to human life
or creates a public nuisance.
M.
Any sludge resulting from the pretreatment of waters
or wastewaters.
A.
If any waters or wastes are discharged or are proposed to be discharged to the public sewers, which contain the substances or possess the characteristics enumerated in § 364-29 of this article 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:
(1)
Reject the wastes.
(2)
Require pretreatment to an acceptable condition for
discharge to the public sewers.
(3)
Require control over the quantities and rates of discharge;
and/or
(4)
Require payment to cover the added cost of handling
and treating the wastes not covered by existing taxes or sewer charges.
B.
If the Superintendent permits the pretreatment of
equalization of waste flow, the design and installation of the plans
and equipment shall be subject to the review and approval of the Superintendent
and the Board and subject to the requirements of all applicable codes,
bylaws and laws.
Grease, oil and sand interceptors shall be provided
and maintained by the owner (not the Board) 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 Board
and the Superintendent, and shall be located outside the building
as to be readily and easily accessible for cleaning and inspection.
Each restaurant must have an approved grease trap. Each gasoline station
must have an approved gasoline trap. Each car wash must have an approved
sand trap.
Where preliminary treatment of flow-equaling
facilities is provided for any waters or wastes, it shall be maintained
continuously in satisfactory and effective operation by the owner
at his expense.
When required by the Board or 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 Board
and 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 wastewaters to which reference is made
in this bylaw 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. 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 should be taken.
Normally, but not always, BOD and suspended solids analyses are obtained
from twenty-four-hour composites of all outfalls whereas pH is determined
from periodic grab samples.
All industries discharging into a public sewer
shall perform such monitoring of their discharges as the Superintendent,
Board and/or other duly authorized employees of the Town or North
Attleborough may reasonably require, including installation, use and
maintenance monitoring equipment, keeping records and reporting the
results of such monitoring to the Superintendent and/or Board. Such
records shall be made available upon request by the Superintendent
and/or the Board to other agencies having jurisdiction over discharges
to the receiving waters.
Any person responsible for, or becoming aware
of, the discharge to a public sewer, accidental or otherwise, of any
prohibited substance or of any slug, as defined herein, shall report
same immediately by telephone to the Superintendent so that necessary
precautions can be taken to minimize the deleterious effects of the
discharge.
