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 designated officer of the town. Industrial
cooling water or unpolluted process waters may be discharged, on approval
of the officers of the town, to a storm sewer or natural outlet. Nothing
herein is intended to overrule discharge standards imposed by the
New York State Department of Environmental Conservation.
A. No person shall discharge or cause to be discharged any of the following-described
waters or wastes to any public sewers:
(1) Any liquid or vapor having a temperature higher than 150° F.
65° C. or in such quantities that the temperature at the treatment
works influent exceeds 104° F. 40° C.
(2) Any waters or wastes which contain grease or oil or other substance
that will solidify or become discernibly viscous at temperatures between
32° and 150° F.
(3) Any waters or wastes containing emulsified oil and grease exceeding
an average of 50 parts per million [417 pounds per million gallons]
ether soluble matter.
(4) 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 at 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, ethers,
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.
(5) Any noxious or malodorous gas, such as hydrogen sulfide, sulfur dioxide
or nitrous oxide, or other substance which, either singly or by interaction
with other wastes, is capable of creating a public nuisance or hazard
to life or of preventing entry into sewers for their maintenance and
repair.
(6) Any garbage that has not been properly pulverized or ground to fine
powder.
(7) Any ashes, cinders, sand, mud, straw, shavings, metal, glass, rags,
feathers, tar, plastic, wood, paunch manure, hair and fleshings, entrails,
lime slurry, lime residues, beer and distillery slops, chemical residues,
paint residues, cannery waste, bulk solids or any other solid or viscous
substance capable of causing obstruction to the flow of the sewers
or other interference with the proper operations of the sewerage system.
(8) Any waters or wastes, acid and alkaline in reaction having corrosive
properties capable of causing damage or hazard to structures, equipment
and personnel of the sewerage system. Free acids and alkalies must
be neutralized, at all times, within a permissible pH range of 6.0
to 9.5.
(9) Any cyanides in excess of two parts per million by weight as CN.
(10)
Any radioactive wastes or isotopes of such half-life or concentration
as may exceed limits established by applicable local, state or federal
regulations.
(11)
Any waters or wastes that, for a duration of 15 minutes, have
a concentration greater than five times the average of that of normal
sanitary sewage as measured by suspended solids and BOD and/or which
are discharged continuously at a rate exceeding 1,000 gallons per
minute except by special permit.
(12)
Any stormwater, cistern or tank overflow, cellar drain, discharge
from any vehicle wash rack or water motor or the contents of any privy
vault, septic tank or cesspool or the discharge of effluent from any
air-conditioning machine or refrigeration unit.
B. No person shall discharge or cause to be discharged any waters or
wastes containing a toxic or poisonous substance, a high chlorine
demand or suspended solids in sufficient quantity to injure or interfere
with any sewage treatment process, constitute a hazard to humans or
animals or create any hazard in the receiving waters or the effluent
of the town sewage treatment plant. Such toxic substances shall be
limited to the average concentrations listed hereinafter in the sewage
as it arrives at the treatment plant, and at no time shall the hourly
concentration at the sewage treatment plant exceed three times the
average concentration. If concentrations listed are exceeded, individual
establishments will be subject to control in volume and concentration
by the Town Engineer. (Acceptance of such waste shall not cause the
POTW to violate its SPDES permit or the receiving water quality standards
or any pretreatment regulations promulgated by USEPA or NYSDEC in
accordance with Section 307 of P.L. 95-217.)
Limits of Toxic Substances in Sewage
|
---|
Substance
|
Daily Average Concentration
(ppm)
|
---|
Iron, as Fe
|
5.0
|
Chromium, as Cr (hexavalent)
|
3.0
|
Copper, as Cu
|
0.2
|
Chlorine requirement
|
15.0
|
Phenol
|
10.0
|
Cyanide, as CN
|
0.1
|
Cadmium, as Cd
|
0.3
|
Zinc, as Zn
|
0.3
|
Nickel, as Ni
|
2.0
|
C. Normal sanitary sewage shall be construed to fall within the following
ranges at the effluent of the industrial plant in question:
Constituents
|
Normal Range
(ppm)
|
---|
Suspended solids
|
180 to 350
|
BOD
|
140 to 300
|
Chlorine demand
|
5 to 15
|
Grease, oil and sand interceptors shall be provided when, in
the opinion of the Town Engineer, they are necessary for the proper
handling of liquid wastes containing grease in excessive amounts or
any flammable wastes, sand and 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 Town Engineer and shall be located as to be readily
and easily accessible for cleaning and inspection.
Grease and oil interceptors shall be constructed of impervious
materials capable of withstanding abrupt and extreme changes in temperature.
They shall be of substantial construction, watertight and equipped
with easily removable covers which, when bolted in place, shall be
gastight and watertight.
Where installed, all grease, oil and sand interceptors shall
be maintained by the owner, at his expense, in continuously efficient
operation at all times and shall be readily accessible and open to
inspection by the Town Engineer at any time.
The admission into the public sewers of any waters or wastes
having a five-day biochemical oxygen demand greater than 300 parts
per million by weight or containing more than 350 parts per million
by weight of suspended solids or containing more than 15 parts per
million of chlorine demand or containing any quantity of substances
having the characteristics above the previously described limits or
having an average daily flow greater than 2% of the average daily
sewage flow of the town shall be subject to the review and approval
of the Town Engineer. Where necessary, in the opinion of the Town
Engineer, the owner shall provide, at his expense, such preliminary
treatment as may be necessary to reduce the biochemical oxygen demand
to 300 parts per million and the suspended solids to 350 parts per
million by weight or reduce the chlorine demand to 15 parts per million
or reduce objectionable characteristics or constituents to within
the maximum limits provided for or control the quantities and rates
of discharge of such waters or wastes.
Plans, specifications and any other pertinent information relating
to proposed preliminary treatment facilities shall be submitted for
the approval of the Town Engineer and none of the appropriate facilities
shall be commenced until said approvals are obtained in writing.
Where preliminary treatment 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 Town Engineer, the owner of any property
served by a building sewer carrying industrial wastes shall install
a suitable control manhole 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 Town Engineer. 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 shall be determined
in accordance with Standard Methods of Examination of Water and Sewage
and upon suitable samples taken at the control manhole provided for
above. In the event that no special manhole has been required, the
control manhole is the public town sewer nearest to the point at which
the building sewer is connected.