[Ord. No. 6035 § II, 11-7-2016]
A.
General Prohibitions. No User shall introduce or cause to be introduced
into the POTW any pollutant or wastewater which causes Pass Through
or Interference. These general prohibitions apply to all Users of
the POTW whether or not they are subject to categorical Pretreatment
Standards or any other National, State, or local Pretreatment Standards
or Requirements.
B.
Specific Prohibitions. No User shall introduce or cause to be introduced
into the POTW the following pollutants, substances, or wastewater:
1.
Pollutants which create a fire or explosive hazard in the POTW,
including, but not limited to, wastestreams with a closed-cup flashpoint
of less than one hundred forty degrees Fahrenheit (140° F.) sixty
degrees Celsius (60° C.) using the test methods specified in 40
CFR 261.21;
2.
Wastewater having a pH less than 6.0 or more than 9.5, or otherwise
causing corrosive structural damage to the POTW or equipment;
3.
Solid or viscous substances in amounts which will cause obstruction
of the flow in the POTW resulting in Interference;
4.
Pollutants, including oxygen-demanding pollutants (BOD, etc.),
released in a discharge at a flow rate and/or pollutant concentration
which, either singly or by interaction with other pollutants, will
cause Interference with the POTW;
5.
Wastewater having a temperature greater than one hundred four
degrees Fahrenheit (104° F.) forty degrees Celsius (40° C.),
or which will inhibit biological activity in the treatment plant resulting
in Interference, but in no case wastewater which causes the temperature
at the introduction into the treatment plant to exceed one hundred
four degrees Fahrenheit (104° F.) forty degrees Celsius (40°
C.);
6.
Petroleum oil, non-biodegradable cutting oil, or products of
mineral oil origin, in amounts that will cause Interference or Pass
Through;
7.
Pollutants which result in the presence of toxic gases, vapors,
or fumes within the POTW in a quantity that may cause acute worker
health and safety problems;
8.
Trucked or hauled pollutants, except at discharge points designated by the Director in accordance with Section 716.140 of this Chapter;
9.
Noxious or malodorous liquids, gases, solids, or other wastewater
which, either singly or by interaction with other wastes, are sufficient
to create a public nuisance or a hazard to life, or to prevent entry
into the sewers for maintenance or repair;
10.
Wastewater which imparts color which cannot be removed by the
treatment process, such as, but not limited to, dye wastes and vegetable
tanning solutions, which consequently imparts color to the treatment
plant's effluent, thereby violating BMU's NPDES permit;
11.
Wastewater containing any radioactive wastes or isotopes except
in compliance with applicable State or Federal regulations;
12.
Storm Water, surface water, ground water, artesian well water,
roof runoff, subsurface drainage, swimming pool drainage, condensate,
deionized water, Non-Contact Cooling Water, and unpolluted wastewater,
unless specifically authorized by the Director;
13.
Sludges, screenings, or other residues from the pretreatment
of industrial wastes;
14.
Medical wastes, except as specifically authorized by the Director
in an individual wastewater discharge permit;
15.
Wastewater causing, alone or in conjunction with other sources,
the treatment plant's effluent to fail toxicity test;
16.
Detergents, surface-active agents, or other substances which
that might cause excessive foaming in the POTW;
17.
Fats, oils, or greases of animal or vegetable origin in concentrations
greater than one hundred (100) mg/l.
|
Pollutants, substances, or wastewater prohibited by this Section
shall not be processed or stored in such a manner that they could
be discharged to the POTW.
|
[Ord. No. 6035 § II, 11-7-2016]
A.
Users must comply with the categorical Pretreatment Standards found at 40 CFR Chapter I, Subchapter N, Parts 405 — 471.
2.
When the limits in a categorical Pretreatment Standard are expressed
only in terms of mass of pollutant per unit of production, the Director
may convert the limits to equivalent limitations expressed either
as mass of pollutant discharged per day or effluent concentration
for purposes of calculating effluent limitations applicable to individual
Industrial Users.
3.
When wastewater subject to a categorical Pretreatment Standard
is mixed with wastewater not regulated by the same Standard, the Director
shall impose an alternate limit in accordance with 40 CFR 403.6(e).
4.
The Director may convert the mass limits of the categorical
Pretreatment Standards of 40 CFR Parts 414, 419, and 455 to concentration
limits for purposes of calculating limitations applicable to individual
Industrial Users. The conversion is at the discretion of the Director.
5.
Once included in its permit, the Industrial User must comply with the equivalent limitations developed in this Section 716.060 in lieu of the promulgated categorical Standards from which the equivalent limitations were derived.
6.
Many categorical Pretreatment Standards specify one (1) limit
for calculating maximum daily discharge limitations and a second limit
for calculating maximum Monthly Average, or four-day average, limitations.
Where such Standards are being applied, the same production or flow
figure shall be used in calculating both the average and the maximum
equivalent limitation.
7.
Any Industrial User operating under a permit incorporating equivalent
mass or concentration limits calculated from a production-based Standard
shall notify the Director within two (2) business days after the User
has a reasonable basis to know that the production level will significantly
change within the next calendar month. Any User not notifying the
Director of such anticipated change will be required to meet the mass
or concentration limits in its permit that were based on the original
estimate of the long term average production rate.
[Ord. No. 6035 § II, 11-7-2016]
Users must comply with Missouri Pretreatment Standards codified
at [insert appropriate cite to State statute or law.]
[Ord. No. 6035 § II, 11-7-2016]
A.
The Director is authorized to establish Local Limits pursuant to
40 CFR 403.5(c).
B.
The following pollutant limits are established to protect against
Pass Through and Interference. Based upon the following Maximum Allowable
Industrial Load (MAIL) calculations no person shall discharge wastewater
to cause the combined treatment plant influent to contain in excess
of the following daily maximums.
[Ord. No. 6257, 1-31-2022]
|
North Plant
| |
|---|---|
|
Parameter
|
MAIL
|
|
Ammonia
|
72 lbs
|
|
BOD5
|
9,123 lbs
|
|
Total suspended solids
|
8,960 lbs
|
|
South Plant
| |
|---|---|
|
Parameter
|
MAIL
|
|
Ammonia
|
313 lbs
|
|
Arsenic
|
0.634 lbs
|
|
BOD5
|
6,605 lbs
|
|
Cadmium
|
0.025 lbs
|
|
Chromium
|
10.495 lbs
|
|
Copper
|
8.837 lbs
|
|
Cyanide
|
1.154 lbs
|
|
Lead
|
0.585 lbs
|
|
Mercury
|
0.141 lbs
|
|
Molybdenum
|
0.207 lbs
|
|
Nickel
|
3.690 lbs
|
|
Selenium
|
0.292 lbs
|
|
Silver
|
1.705 lbs
|
|
Total suspended solids
|
1,749 lbs
|
|
Zinc
|
2.628 lbs
|
|
The above limits apply at the point where the wastewater is
discharged to the POTW. All concentrations for metallic substances
are for total metal unless indicated otherwise. The Director may impose
mass limitations or concentration-based limitations which when all
of the SIUs are combined do not exceed the MAIL values above.
|
|
When distributed on a uniform concentration basis for the South
Plant, the local limits will be set at the following daily maximum:
|
|
Parameter
|
UNIFORM CONCENTRATION
|
|---|---|
|
Arsenic
|
0.124 mg/L
|
|
Cadmium
|
0.005 mg/L
|
|
Chromium
|
2.053 mg/L
|
|
Copper
|
1.728 mg/L
|
|
Cyanide
|
0.226 mg/L
|
|
Lead
|
0.114 mg/L
|
|
Mercury
|
0.028 mg/L
|
|
Molybdenum
|
0.040 mg/L
|
|
Nickel
|
0.722 mg/L
|
|
Selenium
|
0.057 mg/L
|
|
Silver
|
0.333 mg/L
|
|
Zinc
|
0.514 mg/L
|
|
BOD5, Ammonia, Oil & Grease, and
TSS shall be as outlined in the Sanitary Sewer Ordinance.
|
[Ord. No. 6035 § II, 11-7-2016]
The BMU reserves the right to establish, by ordinance or in
individual wastewater discharge permits, more stringent Standards
or Requirements on discharges to the POTW consistent with the purpose
of this Chapter.
[Ord. No. 6035 § II, 11-7-2016]
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 a discharge limitation
unless expressly authorized by an applicable Pretreatment Standard
or Requirement, the Director may impose mass limitations on Users
who are using dilution to meet applicable Pretreatment Standards or
Requirements, or in other cases when the imposition of mass limitations
is appropriate.
