No person shall discharge industrial wastes
into the sewage works of the Town without first obtaining a connection
use permit from the the Water Pollution Control Authority. Application
for such permit shall be made in writing and prepared on a standard
form entitled, "Industrial Sewer Connection Application."
No person shall discharge or cause to be discharged
any stormwater, surface water, groundwater, roof runoff, subsurface
drainage, cooling water or unpolluted industrial process water 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 Water Pollution
Control Authority. Industrial cooling water or unpolluted process
waters may be discharged, upon approval of the Water Pollution Control
Authority, to a storm sewer or natural outlet, and in accordance with
all applicable state and federal laws and regulations.
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 water pollution control facility.
These general prohibitions apply to all such users of the water pollution
control facility 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 water pollution control facility:
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 Water Pollution Control Facility or to the
operation of the Water Pollution Control Facility. 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 water pollution control facility, 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 higher than
9.0 or having other corrosive property capable of causing damage or
hazard to structures, equipment and personnel of the water pollution
control facility. The upper limit of pH for any industrial wastewater
discharge shall be established under the dischargers' 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 water pollution control facility or
to exceed the limitations 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 malodorus sewage, gasses or solids
which either singly or by interaction with other sewage are sufficient
to prevent entry into the public waters 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 water pollution control
facility's NPDES permit to be exceeded.
G.
Any substance which may cause the water pollution
control facility's effluent or any other product or the water pollution
control facility such as residues, sludges or scums, to be unsuitable
for reclamation process where the water pollution control facility
is pursuing a reuse and reclamation program. In no case shall a substance
discharged to the water pollution control facility 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 Recovery Act, 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 the water pollution
control facility 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
Town's NPDES 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 and will not have an adverse
effect on the receiving stream or will not otherwise endanger public
property or constitute a nuisance. The Water Pollution Control Authority
may 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 discharged
to the public sewer are as follows:
A.
Sewage having a temperature of 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 § 172-1.) 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 Water Pollution Control Authority.
E.
Any radioactive wastes or isotopes of such half-life
or concentration as may exceed limits established by the Water Pollution
Control Authority 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 chlorine demand in such quantities
as to constitute a significant load on the water pollution control
facility.
(4)
Unusual volume of flow or concentrations of wastes
constituting a slug.
G.
Any wastewater with objectionable color not removed
in the treatment process, such as but not limited to dye wastes and
vegetable tanning solutions.
H.
Any pollutants, including oxygen demanding pollutants
(BOD, etc.), released at a flow rate and/or pollutant concentration
which a user knows or has reason to know 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.
I.
Any wastewater which causes a hazard to human life
or creates a public nuisance.
J.
Overflow from holding tanks or other receptacles storing
organic wastes.
K.
Sewage with a concentration of pollutants in excess
of the following limits:
|
Parameter
|
Allowable Effluent Concentrations
(milligrams per liter)
| |||
|---|---|---|---|---|
|
Pollutant1
|
Average Monthly
|
Maximum Daily
|
Maximum Instantaneous3
| |
|
Arsenic4
| ||||
|
Aluminum
|
2.0
|
4.0
|
6.0
| |
|
Barium
|
2.0
|
4.0
|
6.0
| |
|
Boron4
| ||||
|
Beryllium4
| ||||
|
Cadmium2
|
0.1 (0.07)
|
0.5 (0.11)
|
0.75
| |
|
Chromium, hexavalent
|
0.1
|
0.2
|
0.3
| |
|
Chromium, total
|
1.0
|
2.0
|
3.0
| |
|
Copper
|
1.0
|
2.0
|
3.0
| |
|
Cyanide, amenable
|
0.1
|
0.2
|
0.3
| |
|
Cyanide, total
|
0.65
|
1.2
|
__
| |
|
Fluoride
|
20.0
|
30
|
45.0
| |
|
Gold
|
0.1
|
0.5
|
0.75
| |
|
Iron4
|
3.0
|
5.0
|
7.5
| |
|
Lead
|
0.1
|
0.5
|
0.75
| |
|
Mercury4
| ||||
|
Nickel
|
1.0
|
2.0
|
3.0
| |
|
Silver
|
0.1
|
0.5
|
0.75
| |
|
Tin
|
2.0
|
4.0
|
6.0
| |
|
Zinc
|
1.0
|
2.0
|
3.0
| |
|
NOTES:
| |
|
1
|
All metals to be measured as total metals.
|
|
2
|
All values are for new and existing discharges
except for cadmium, in which case the numbers in parentheses are for
new discharges only.
|
|
3
|
As determined by a grab sample.
|
|
4
|
Arsenic, boron, beryllium and mercury limits
will be decided on a case-by-case basis by the Connecticut Department
of Environmental Protection with Town input.
|
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.
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 Part 1 for sources in that subcategory, shall supersede the limitations
imposed under this Part 1.
The Superintendent shall have the right to reject
the discharge of any wastes or require more stringent effluent limitations
than those required by the state permit, the decisions of the Commissioner
notwithstanding.
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
25-54i of the Connecticut General Statutes, as amended,[1] including but not limited to installation, 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 industries will send
a copy of their self-monitoring report to the Superintendent, when
the reports are sent to the Commissioner.
[1]
Editor's Note: See now C.G.S. § 22a-430.
Grease traps and oil and sand interceptors shall
be provided when, in the opinion of the Water Pollution Control Authority,
they are necessary for the proper handling of liquid wastes containing
grease in excessive amounts, or any flammable wastes, sand and other
harmful ingredients. All interceptors shall be of a type and capacity
approved by the Water Pollution Control Authority and shall be located
as to be readily and easily accessible for cleaning and inspection.
Where installed, all grease traps and oil and
sand interceptors shall be maintained by the owner, at his expense,
in continuously efficient operation at all times.
The admission into the Town's wastewater facilities 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 any quantity of substances having the characteristics described in §§ 172-12 or 172-13 or having an average daily flow greater than 2% of the average daily sewage flow of the Town or when in accordance with Section 25-54i of the Connecticut General Statutes, as amended,[1] a permit from the Commissioner is required prior to the initiation of a discharge of industrial wastewater of any quantity or domestic sewage in excess of 5,000 gallons per day through any individual building sewer to a public sewer shall be subject to the review and approval of the Water Pollution Control Authority. Where necessary in the opinion of the Water Pollution Control Authority, the owner shall provide, at his expense, such preliminary treatment as may be necessary to reduce the BOD to 300 parts per million and the suspended solids to 350 parts per million by weight or reduce objectionable characteristics or constituents to within the maximum limits provided for in §§ 172-12 or 172-13 or control the quantities and ranges of discharge of such waters or wastes. Plans, specifications and other pertinent information relating to proposed preliminary treatment facilities shall be submitted for the approval of the Water Pollution Control Authority.
[1]
Editor's Note: See now C.G.S. § 22a-430.
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.
A.
Each user shall provide protection from accidental
discharge of prohibited materials or other substances regulated by
this Part 1. Facilities to prevent accidental discharge of prohibited
materials shall be provided and maintained at the owner 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.
B.
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 liabilities which may be incurred as a result of damage
to the water pollution control facility, 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 liability
which may be imposed by this Part 1 or other applicable law.
C.
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.
When required by the Water Pollution Control
Authority, the owner of any property served 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
Water Pollution Control Authority. 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, test and analyses of the characteristics of waters and wastes to which reference is made in §§ 172-12 and 172-20 shall be determined in accordance with Standard Methods for the Examination of Water and Wastewater, latest edition, published by the American Public Health Association and shall be determined at the control manhole provided for in § 172-23 or upon suitable samples taken 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 Town wastewater facilities to the point at which the building sewer is connected.
No statement in this Part 1 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 such special agreement
or arrangement, as well as the payment for the same, shall be previously
approved by the Water Pollution Control Authority.
