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Pretreatment
Program Rules and Regulations
Regulations
| Limitations | State
Requirements
PART
II REGULATIONS
A. General
Discharge Prohibitions
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 BOARD’s wastewater collection and/or treatment
facilities. These general prohibitions apply to all such Users of the
BOARD’s wastewater facilities whether or not the User is subject to
National Categorical Pretreatment Standards or any other National, State,
or local Pretreatment Standards or Requirements. A user may not discharge
to the BOARD’s wastewater collection and treatment facilities any of
the following:
-
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 BOARD’s wastewater facilities or to the operation of
the BOARD’s wastewater treatment facilities. 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
then five percent (5%) nor any single reading over ten percent (10%)
of the lower explosive limit (LEL) of the meter. Prohibited material
include, but are not limited to, gasoline, kerosene, naphtha, benzene,
toluene, xylene, ethers, alcohols, ketones, aldehydes, peroxides,
chlorates, perchlorates, bromates, carbides, hydrides, and sulfides
and any other substances which the City, the State or EPA has notified
the User is a fire hazard or a hazard to the system.
-
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: garbage with particles
greater than one-half inch (1/2") in any dimension, grease, 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, waste paper, wood, plastics, gas,
tar, asphalt residues from refining, or processing of fuel or lubricating
oil, mud, glass grinding or polishing wastes.
-
Any
wastewater having a pH less than 6 or higher than 11, unless the
BOARD’s wastewater treatment facilities are specifically designed
to accommodate such wastewater, or wastewater having any other corrosive
property capable of causing damage or hazard to structures, equipment,
and/or personnel of the BOARD’s wastewater treatment facilities.
-
Any
wastewater containing toxic pollutants in sufficient quantity, either
singly or by interaction with the other pollutants, to injure or
interfere with any wastewater treatment process, constitutes a hazard
to humans or animals, create a toxic effect in the receiving waters
of the BOARD’s wastewater treatment facilities, 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.
-
Any
noxious or malodorous liquids, gases, or solids which either singly
or by interaction with other wastes are sufficient to create public
nuisance or hazard to life or are sufficient to prevent entry into
the sewers for maintenance and repair.
-
Any
substances which may cause the BOARD’s wastewater treatment facilities’
effluent or any other product of the BOARD’s wastewater treatment
facilities such as residues, sludge, or scum, to be unsuitable for
reclamation and reuse or to interfere with the reclamation process.
In no case, shall a substance discharged to the BOARD’s wastewater
treatment facilities cause the BOARD’s wastewater treatment facilities
to be in non-compliance with sludge use or disposal criteria, guidelines
or regulations developed under Section 405 of the Act; any criteria,
guidelines, or regulations affecting sludge used 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.
-
Any
substance which will cause the BOARD’s wastewater treatment facilities
to violate its NPDES and/or State Disposal System Permit or the
receiving water quality standards.
-
Any
wastewater with objectionable color not removed in the treatment
process, such as, but not limited to, dye wastes, and vegetable
tanning solutions.
-
Any
wastewater having a temperature which will inhibit biological activity
in the BOARD’s wastewater treatment plant resulting in interference,
but in no case wastewater with a temperature at the introduction
into the BOARD’s wastewater collection system which exceeds 43°C
( 110°F)
-
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 BOARD’s wastewater
treatment facilities. 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 fifteen (15) minutes more than five
(5) times the average twenty-four (24) hour concentration, quantities,
or flow during normal operation.
-
Any
wastewater containing any radioactive wastes or isotopes of such
half-life or concentration as may exceed limits established by the
Director in compliance with applicable State or Federal regulations.
-
Any
wastewater which causes a hazard to human life or creates a public
nuisance.
-
Storm
water, surface water, ground water, artesian well water, roof runoff,
subsurface drainage, condensate, deionized water, cooling water
and unpolluted industrial wastewater, unless specifically authorized
by the Director.
Wastes
prohibited by this section shall be processed or stored in such a manner
that these wastes could be discharged to the BOARD’s wastewater system.
All floor drains located in process or materials storage areas must
discharge to the user’s pretreatment facility before connecting with
the BOARD’s wastewater system.
When
the Director determines that a User(s) is contributing to the BOARD’s
wastewater treatment facilities, any of the above enumerated substances
in such amounts as to interfere with the operation of the BOARD’s wastewater
treatment facilities, the Director shall:
-
Advise
the User(s) of the impact of the contribution on the BOARD’s wastewater
treatment facilities
-
Develop
effluent limitation(s) for such User to correct the interference
with the BOARD’s wastewater treatment facilities
B.
FEDERAL CATEGORICAL PRETREATMENT STANDARDS
Upon
the promulgation of the Federal Categorical Pretreatment Standards
for a particular industrial sub-category, the Federal Standard, if
more stringent than limitations imposed under these Rules and Regulations
or sources in that sub-category, shall immediately supersede the limitations
imposed under these Rules and Regulations. The Director shall notify
all affected Users of the applicable reporting requirements under
40 CFR, Section 403.12.
C.
MODIFICATION OF FEDERAL CATEGORICAL PRETREATMENT STANDARDS
Where
the BOARD’s wastewater treatment system achieves consistent removal
of pollutants limited by Federal Pretreatment Standards, the BOARD
may apply to the Approval Authority for modification of specific limits
in the Federal Pretreatment Standards. "Consistent Removal" shall
mean reduction in the amount of a pollutant or alteration of the nature
of the pollutant by the wastewater treatment system to a less toxic
or harmless state in the effluent which is achieved by the system
95 percent of samples taken when measured according to the procedures
set forth in Section 403.7(c)(2) of (Title 40 of the Code of Federal
Regulations, Part 403) - "General Pretreatment Regulations for Existing
and New Sources of Pollution" promulgated pursuant to the Act. The
BOARD may then modify pollutant discharge limits in the Federal Pretreatment
Standards if the requirements contained in 40 CFR, Part 403, Section
403.7, are fulfilled and prior approval from the Approval Authority
is obtained.
D.
PRETREATMENT FACILITIES
Users
shall provide necessary wastewater treatment as required to comply
with this "Pretreatment Program Rules and Regulations" and shall achieve
compliance with all categorical pretreatment standards, local limits,
and prohibitions within the time limitations specified by the Director.
Any facilities required to pretreat wastewater to a level acceptable
to the BOARD shall be provided, operated, and maintained at the User’s
expense. Detailed plans showing the pretreatment facilities and operating
procedures shall be submitted to the Director for review.
Grease,
oil, and sand interceptors shall be provided when, in the opinion
of the Director, they are necessary for the proper handling of wastewater
containing excessive amounts of grease, flammable substance, sand,
or other harmful substances; except that such interceptors shall not
be required for residential users. Such interceptors shall be inspected,
cleaned, and repaired regularly, as needed by the owner at his expense.
E.
SPECIFIC
POLLUTANT LIMITATIONS
Except
as herein otherwise provided, no person shall discharge or cause to
be discharged any of the following waters or wastes into any sanitary
sewer system of the Board of Water and Sewer Commissioners of the
City of Mobile:
-
Any
liquid or vapor having a temperature higher than 110°F.
-
Any
water or waste which may contain more than 100 parts per million
by weight of fat, oil or grease or other substance that will
solidify or become viscous at temperatures between 32°F
and 90°F.
-
Any
gasoline, benzene, naphtha, fuel oil, or other flammable or
explosive liquid, solid or gas.
-
Any
water or wastes that contain more than ten parts per million
by weight of hydrogen sulfide, sulfur dioxide, and/or nitrous
oxide.
-
Any
garbage that has not been properly shredded.
-
Any
ashes, cinders, sand, mud, straw, shavings, metal, glass, rags,
feathers, tar, plastics, wood, paunch manure or other solid
or viscous substance capable of causing obstruction to the flow
in sewers and other interference with the proper operation of
the sewer works.
-
Any
waters or wastes having a pH lower than 6.0 or higher than 11.0
or having any other corrosive property capable of causing damage
or hazard to the BOARD’s structures, equipment and personnel.
-
Any
waters or wastes containing a toxic or poisonous substance(s)
or any other materials in sufficient quantity to injure or interfere
with any sewage treatment process, or constitute a hazard to
humans or animals, or create any hazard in the receiving waters
of the sewage treatment plant, and without proper pretreatment
and written approval of the Director.
-
Any
waters or wastes containing suspended solids in concentration
greater than 250 mg/l and are of such character and quantity
that unusual attention or expense is required to handle such
materials at the sewage treatment plant.
-
Any
noxious or malodorous liquids, gases, or solids which either
singly or by interaction with other wastes are sufficient to
create public nuisance or hazard to life or are sufficient to
prevent entry into the sewers for maintenance and repair.
-
Any
waters or wastes containing BOD in concentration greater than
280 mg/l.
-
Any
waters or wastes having an objectionable color which is not
removable in the existing sewage treatment plant processes.
-
Any
Unpolluted waters and/or unpolluted wastes.
-
Any
long half-life (over 100 days) of toxic radioactive isotopes,
without special permit.
-
Any
wastewater containing phenols or other taste-producing substances
in such concentrations as to produce odor in the effluent as
to effect the taste or odor of the receiving waters. Quantities
of such substances will be determined by the Director on a case
by case basis.
-
Any
categorical waste in excess of State or Federal effluent guidelines.
-
Any
fats or greases including but not limited to petroleum oil,
non-biodegradable cutting oil, or products of mineral oil origin,
in amounts that will cause interference or pass through.
-
Any
material identified as hazardous waste according to 40 CFR Part
261 except as may be specifically authorized by the director.
-
All
pollutants listed under Part II, A - General Discharge Prohibitions
are included in their entirety as part of this section.
The
limits fixed herein may be used as a guide in design and plant control,
but may be altered by the Director as required or authorized by State
or Federal law in the event of a cumulative overload on a particular
drainage basin or wastewater treatment plant.
F.
STATE
REQUIREMENTS
State
requirements and limitations on discharges shall apply in any case
where they are more stringent than Federal Requirements and limitations
or those in the Pretreatment Program Rules and Regulations.
G.
BOARD’S
RIGHT OF REVISION
The
BOARD reserves the right to establish by resolution more stringent limitations
or requirements on discharges to the wastewater disposal system if deemed
necessary to comply with the objective presented in Part I Section A
of the Pretreatment Program Rules and Regulations.
H.
EXCESSIVE
DISCHARGE
No
User shall ever increase the use of process water or, in any way,
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 other pollutant-specific limitation developed by the BOARD or
State.
I. ACCIDENTAL
DISCHARGES
Each
User shall provide protection from accidental discharge of prohibited
materials or other substances regulated by the Pretreatment Program
Rules and Regulations. Facilities to prevent accidental discharge
of prohibited materials shall be provided and maintained at the owner’s
or User’s own cost and expense. Detailed plans showing facilities
and operating procedures to provide this protection shall be submitted
to the BOARD for review, and shall be approved by the BOARD before
construction of the facility. Review and approval of such plans and
operating procedures shall not relieve the User from the responsibility
to modify the User’s facility as necessary to meet the requirements
of the Pretreatment Program Rules and Regulations. In the case of
an accidental discharge, it is the responsibility of the User to:
-
Immediate
Notice - User should immediately telephone and notify the
BOARD of the incident. The notification shall include location
of discharge, type of waste, concentration and volume, and corrective
actions.
-
Written
Notice - Within five (5) days following an accidental discharge;
the User shall submit to the Director 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 BOARD’s wastewater treatment facilities, fish
kills, or any other damage to person or property; nor shall
such notification relieve the User of any fines, civil charges,
or other liability which may be imposed by this article or other
applicable law.
-
Notice
to Employees - 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 insure that all employees who may cause or suffer such
a dangerous discharge to occur are advised of the emergency
notification procedure.
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