A.
No person shall discharge or cause to be discharged any unpolluted
waters such as stormwater, groundwater, roof runoff, subsurface drainage
or cooling water to any sanitary sewer.
B.
Stormwater and all other unpolluted drainage shall be discharged
to such sewers as are specifically designated as combined sewers or
storm sewers and discharged to a watercourse in accordance with all
applicable state and federal laws and regulations.
No person shall discharge or permit to be discharged from property
under his control into a storm sewer or watercourse any waste or water
which is polluted with organic or other matter which can decay, which
is odorous, oily or unsightly or for any other reason is likely to
or does give offense or cause damage or injury to nearby persons or
property when discharged into a watercourse. No wastewater which is
poisonous to persons, animals or fish, when discharged into any watercourse,
shall be discharged into any storm sewer. No coarse rubbish, sticks,
large solids, offal, feathers, straw, debris, cinders, ashes, scraps,
leaves, oil, grease, combustible substance or similar materials shall
be permitted to enter any storm sewer. No material, the discharge
of which into natural streams, ponds or lakes is prohibited by state
or federal laws or regulations, shall be discharged into any storm
sewer.
No user shall contribute or cause to be contributed, directly
or indirectly, any pollutant or wastewater which will interfere with
the operation or performance of the WPCF. These general prohibitions
apply to all such users of a WPCF, whether or not the user is subject
to National Categorical Pretreatment Standards or any other federal
or state pretreatment standards or requirements. A user shall not
contribute the following substances to any WPCF:
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 WPCF or to the operation of the WPCF. At no
time shall two successive readings on an explosion hazard meter, at
the point of discharge into the sewage collection 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.
B.
Solids or viscous substances which may cause obstruction to the flow
in a sewer or other interference with the operation of the WPCF, including
substances 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 sewage 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 WPCF. The upper limit of pH for any industrial
wastewater discharge shall be established under the discharger's
state discharge permit.
D.
Any sewage 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 or plant life, create a toxic effect in the receiving waters
of the WPCF or 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 sewage, gases or solids which, either singly
or by interaction with other sewage, are sufficient to prevent entry
into the public sewers for their maintenance and repair.
F.
Any sewage which, by interaction with other sewage in the public
sewer, releases obnoxious gases, forms suspended solids which interfere
with the collection system or creates a condition which may be deleterious
to structures and treatment processes or which may cause the effluent
limitations of the WPCF's NPDES permit to be exceeded.
G.
Any substance which may cause the WPCF's effluent or any other
product of the WPCF, such as residues, sludges or scums, to be unsuitable
for reclamation process where the WPCF is pursuing a reuse and reclamation
program. In no case shall a substance discharged to the WPCF cause
the facility 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 Resource Conservation and Recovery Act,
the Clean Air Act, the Toxic Substances Control Act or state criteria
applicable to the sludge management method being used.
H.
Any substance which will cause a WPCF to violate its NPDES permit
or the receiving water quality standards.
I.
Sewage containing substances which are not amenable to treatment
or reduction by the wastewater treatment process employed or are amenable
to treatment only to such degree that the water pollution control
facility effluent cannot meet the limits stipulated in the NPDES city's
permit.
The following described substances, materials, waters or waste
shall be limited in discharges to public sewers to concentrations
or quantities which will not harm either the sewers or the water pollution
control facility, will not have an adverse effect on the receiving
stream or will not otherwise endanger public property or constitute
a nuisance. The Commissioner may set lower limitations if more severe
limitations are necessary to meet the water quality standards of the
receiving stream. The limitations or restrictions on materials or
characteristics of sewage discharges to the public sewer are as follows:
A.
Sewage having a temperature higher than 150° F. (65° C.).
B.
Sewage containing fat, wax, grease, petroleum or mineral oil, whether
emulsified or not, in excess of 100 milligrams per liter, with floatable
oil not to exceed 20 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. (See the definition of "properly shredded garbage" in § 191-3A.) Garbage grinders may be connected to sanitary sewers from homes, hotels, institutions, restaurants, hospitals, catering establishments or similar places where garbage originates from the preparation of food in kitchens for the purpose of consumption on the premises or when served by caterers.
D.
Any sewage containing odor-producing substances exceeding limits
which may be established by the Commissioner.
E.
Any radioactive wastes or isotopes of such half-life or concentration
as may exceed limits established by the Commissioner in compliance
with all applicable state and federal regulations.
F.
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 demand in such quantities
as to constitute a significant load on the water pollution control
facility.
G.
Overflow from holding tanks or other receptacles storing organic
wastes.
H.
Sewage with a concentration of pollutants in excess of the following
limits:
|
Pollutant
|
Concentration, in Parts Per Million
(milligrams per liter)
| |
|---|---|---|
|
Arsenic as AS
|
0.05
| |
|
Barium as Ba
|
5.0
| |
|
Boron as BO
|
5.0
| |
|
Cyanides as CN (amenable)
|
0.1
| |
|
Floride as F
|
20
| |
|
Chromium (total)
|
1.0
| |
|
Chromium (Cr6)
|
0.1
| |
|
Magnesium as Mg
|
100
| |
|
Manganese as Mn
|
5.0
| |
|
Copper as Cu
|
1.0
| |
|
Zinc as Zn
|
1.0
| |
|
Cadmium
|
0.1
| |
|
Lead
|
0.1
| |
|
Tin
|
2.0
| |
|
Silver
|
0.1
| |
|
Mercury
|
0.01
| |
|
Nickel
|
1.0
|
|
NOTE: All metals are to be measured as total metals.
|
A.
[1]In accordance with Section 22a-430 of the Connecticut General
Statutes, as amended, a permit from the Commissioner of Environmental
Protection is required prior to the initiation of a discharge of any
of the following wastewaters to a public sewer:
B.
A potential discharger must submit a permit application to the Department
of Environmental Protection not later than 90 days prior to the anticipated
date of initiation of the proposed discharge.
A.
[1]If any sewage is discharged or is proposed to be discharged to the public sewers which contains the substances or possesses the characteristics enumerated in § 191-29 of this chapter and which, in the judgment of the Commissioner, may have a deleterious effect upon the wastewater facilities, processes, equipment or receiving waters or which otherwise may create a hazard to life or constitute a public nuisance, the Commissioner may, in accordance with Section 22a-430(b) of the Connecticut General Statutes, as amended:
B.
If the Commissioner permits the pretreatment or equalization of waste
flows, the design and installation of the equipment shall be subject
to the review and approval of the Commissioner, subject to the requirements
of all applicable codes, ordinances and laws.
Grease, oil and gross particle separators shall be provided when, in the opinion of the Commissioner, they are necessary for the proper handling of sewage containing floatable grease in excessive amounts, as specified in § 191-29B, or any flammable wastes, sand or other harmful substances, except that such separators shall not be required for private living quarters or dwelling units. All separators shall be of a type and capacity approved by the Commissioner and shall be located as to be readily and easily accessible for cleaning and inspection. In the maintaining of these separators, the owner(s) shall be responsible for the proper removal and disposal by appropriate means of the captured material and shall maintain records of the dates and means of disposal, which are subject to review by the Commissioner. Any removal and hauling of the collected materials shall be performed by a waste disposal firm which possesses a valid permit from the Commissioner under Section 22a-429 of the Connecticut General Statutes, as amended.
Where pretreatment or flow-equalizing facilities are provided
or required for any sewage, they shall be maintained continuously
in satisfactory and effective operation by the owner(s) at his expense.
When required by the Commissioner or the Superintendent, the
owner of any property serviced by a building sewer carrying industrial
wastes shall install a suitable structure together with such necessary
meters and other appurtenances in the building sewer to facilitate
observations, sampling and measurement of the wastes. Such structure,
when required, shall be accessible and safely located and shall be
constructed in accordance with plans approved by the Commissioner
and/or the Superintendent. The sampling structure shall be located
at a point along the industrial waste stream where a representative
sample of the industrial wastewater may be obtained prior to its being
diluted by domestic sewage in the building sewer. The structure 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 industries discharging into a public sewer shall perform
such monitoring of their discharge as required by the Commissioner
in any state discharge permit issued pursuant to Section 22a-430 of
the Connecticut General Statutes, as amended, including but not limited
to installation, the use and maintenance of monitoring equipment,
keeping records and reporting the results to the Commissioner. Such
records shall be made available upon request of the Commissioner or
the Superintendent.
All measurements, tests and analyses of the characteristics
of sewage to which reference is made in this chapter shall be determined
in accordance with the latest edition of Standard Methods for Examination
of Water and Wastewater, published by the American Public Health Association.
Sampling methods, locations, times, durations and frequencies are
to be determined on an individual basis, subject to the stipulations
and general conditions of the discharger's state discharge permit.
No statement contained in this Article shall be construed as
preventing any special agreement or arrangement between the city and
any industrial concern whereby an industrial waste of unusual strength
or character may be accepted by the city for treatment, provided that
such agreements do not contravene any requirements of existing state
or federal regulations and are compatible with any user charge system
in effect. The city may request a special fee payment to cover the
costs of treating these aforementioned industrial wastewaters.
Upon the promulgation of the Federal Categorical Pretreatment
Standard for a particular industrial subcategory, the federal standard,
if more stringent than limitations imposed under this chapter for
sources in that subcategory, shall supersede the limitations imposed
under this chapter.
No user shall increase the use of process water in an attempt
to dilute a discharge as a partial or complete substitute for adequate
treatment to achieve compliance with the limitations contained in
the Federal Categorical Pretreatment Standards or in any specific
pollutant limitations which may be developed by the Commissioner.
Each user shall provide protection from accidental discharge
of prohibited materials or other substances regulated by this chapter.
Facilities to prevent accidental discharge of prohibited materials
shall be provided and maintained at the owner's or user's
own cost and expense. The Commissioner may require that plans showing
facilities and operating procedures be submitted for review and approval
prior to construction of the facilities.
A.
Within five days following an accidental discharge, the user shall
submit to the Superintendent and the Commissioner a detailed written
report describing the cause of the discharge and the measures to be
taken by the user to prevent similar future occurrences. Such notification
shall not relieve the user of any expense, loss, damage or other liability
which may be incurred as a result of damage to the WPCF, fish kills,
aquatic plants or any other damage to persons or property; nor shall
such notification relieve the user of any fines, civil penalties or
other liabilities which may be imposed by this chapter or other applicable
laws.
B.
A notice shall be permanently posted on the user's bulletin
board or other prominent place advising employees whom to call in
the event of a dangerous discharge. Employers shall ensure that all
employees are advised of the emergency notification procedure.
