Users may not discharge to the sewerage system except in compliance
with this chapter.
Stormwater and all other unpolluted drainage shall be discharged
to storm sewers. Industrial noncontact cooling water or unpolluted
process water shall be discharged to a storm sewer or natural outlet,
subject to the provisions of the particular industry's applicable
WPDES permit.
No person shall discharge or cause to be discharged any of the
following substances to the sewerage system:
A. Any gasoline, kerosene, benzene, toluene, ethylbenzene, xylene, naphthalene,
fuel oil or other flammable or explosive liquid, solid or gas.
B. Any waters or wastes containing toxic or poisonous solids, liquids
or gases in sufficient quantity, either singly or by interaction with
other wastes, to injure or interfere with any wastewater treatment
process, constitute a hazard to humans or animals, create a public
nuisance or create any hazard in the receiving waters of the treatment
plant.
C. Any waters or wastes 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 sewerage system.
D. Solid or viscous substances in quantities or of such size capable
of causing obstruction to the flow in the sewers or other interference
with the proper operation of the sewerage system, such as, but not
limited to, ashes, cinders, sand, mud, straw, shavings, metal, glass,
rags, feathers, tar, plastics, wood, unground garbage, whole blood,
paunch manure, excessive amounts of hair and flesh, entrails and paper
dishes, cups, milk containers, sanitary napkins, or disposable diapers,
either whole or ground by garbage grinders.
E. Any radioactive wastes or isotopes of such half-life or concentration
in quantities that exceed the limits established by the Control Authority
and in compliance with applicable state or federal regulations.
F. Detergents, surface-active agents or other substance that may cause
excessive foaming in the sewerage system.
G. Stormwater, surface water, groundwater, roof runoff, subsurface drainage,
noncontact cooling water or unpolluted industrial process waters.
H. Any wastewater which, in conjunction with other wastewater, will
cause the temperature of the raw wastewater entering the treatment
plant to exceed 104° F. (40° C.) or which will inhibit the
biological activity in the treatment plant resulting in interference.
I. Any substance which creates a fire or explosion hazard in the sewerage
system, including, but not limited to, waste streams with a closed
cup flash point of less than 140° F. or 60° C. using the test
methods specified in 40 CFR 261.21 and § NR 661.21, Wis.
Admin. Code.
J. Any substance which results in the presence of toxic gases, vapors
or fumes within the sewerage system in a quantity that may cause acute
worker health and safety problems.
K. Any water or waste containing fats, wax, grease, or oil whether emulsified
or not, in excess of 100 mg/L or containing substances which may solidify
or become viscous at temperatures between 32° and 140° F.
(0° and 60° C.).
L. Petroleum oil, nonbiodegradable cutting oil, or products of mineral
oil origin, in excess of 100 mg/L or in amounts that will cause interference
or pass through.
M. Any substances regulated as hazardous waste under federal or state
law.
N. Any substance that will cause the City to violate its WPDES permit.
O. Used antifreeze, motor oil, brake fluid, transmission fluid, hydraulic
fluid, oil-based paint, and paint thinners.
P. Medical wastes or infectious wastes, except as specifically authorized
by the Control Authority.
In addition to the prohibitions and limitations in §§
639-11 and
639-12, users may not discharge any pollutant to the sewerage system in a quantity or concentration that, alone or in conjunction with other discharges:
A. Inhibits or disrupts the sewerage system or its sludge processes;
or
B. Will cause a violation of the City's WPDES permit or other regulatory
requirements; or
C. Increases the magnitude or duration of a WPDES violation; or
D. Prevents the use or disposal of wastewater sludge in compliance with
any applicable local, state or federal statutes, ordinances, regulations,
permits or other requirements.
Users may not discharge to the sewerage system any pollutant
in a quantity or concentration that, alone or in conjunction with
other discharges, is a cause of a discharge from the sewerage system
to waters of the state that violates the City's WPDES permit
or increases the likelihood, magnitude or duration of a violation.
In addition to compliance with applicable pretreatment standards in §
639-25, all users are subject to the limits and conditions in this section.
A. City's specific pollutant limitations.
(1) The following pollutant limitations are the maximum concentrations
acceptable for discharge to the sewerage system:
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0.9 mg/L cadmium (total)
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2.0 mg/L lead (total)
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2.0 mg/L copper (total)
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<0.0002 mg/L mercury (total)
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2.0 mg/L cyanide (total)
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5.0 mg/L nickel (total)
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7.0 mg/L chromium (total)
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5.0 mg/L silver (total)
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4.0 mg/L zinc (total)
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(2) The discharge into the sewerage system, either directly or indirectly, of any wastes or waters exceeding any of the limits listed below is subject to review and approval by the Control Authority. A user shall use the notice of intent procedures in §
639-31A to seek such approval.
(a)
Five-day BOD greater than 350 mg/L.
(b)
Suspended solids greater than 400 mg/L.
(c)
Phosphorus greater than 20 mg/L.
(d)
Ammonia nitrogen greater than 50 mg/L.
(e)
An average daily flow exceeding 2% of the total flow to the
treatment plant.
(3) Nothing in this chapter shall prohibit the Control Authority from
requiring lower constituent amounts if deemed necessary for the protection
of the sewerage system or the treatment plant processes.
(4) If a pollutant is regulated by both a National Categorical Pretreatment
Standard and this section, then the more stringent standard applies.
B. Pretreatment. As determined necessary by the Control Authority, the user shall provide pretreatment or curtailment to stay within the above limitations pursuant to the requirements of §§
639-19,
639-22 and
639-23.
C. Dilution. Except where expressly authorized to do so by an applicable
pretreatment standard or requirement, no user shall increase the use
of potable or process water in any way, nor mix separate waste streams
for the purpose of diluting a discharge as a partial or complete substitute
for adequate treatment to achieve compliance with the standards set
forth in this chapter. The use of equalization by a user shall not
be considered dilution as defined herein.
D. Discharge from dental clinics.
(1) This Subsection
D applies to discharges from dental clinics where amalgam is placed or removed. This subsection does not apply to specialty orthodontics, periodontics, oral and maxillo-facial surgery, endodontics, prosthodontics or to other practices that do not place or remove amalgam. For the purposes of this subsection, a "dental clinic" is defined as a nonmobile facility dedicated to the examination and treatment of patients by health care professionals specializing in the care of teeth, gums and oral tissues.
(2) Within the shortest reasonable time, but no later than January 1,
2009, dental clinics that place or remove amalgam shall implement
best management practices for amalgam as established by the Wisconsin
Dental Association.
(3) With the shortest reasonable time, but no later than January 1, 2009,
dental clinics shall install, operate, and maintain an amalgam separator
meeting criteria of the International Standards Organization (ISO
11143) for every vacuum system receiving amalgam waste. Amalgam separators
shall be installed, operated, and maintained according to instructions
provided by the manufacturer. The amalgam separator shall have a design
and capacity appropriate for the size and type of vacuum system.
(4) If a dental clinic is implementing the requirements in Subsection
D(2) and
(3), any numerical discharge limit for mercury established in Subsection
A(1) does not apply.
(5) Starting December 31, 2008, and annually thereafter, dental clinics
will submit reporting information to the Control Authority using forms
provided by the City. Reporting information will include:
(a)
The date the amalgam separator was installed.
(b)
The manufacturer name and model number of the separator.
(c)
Certification that the amalgam separator was installed and is
being operated and maintained in accordance with instructions provided
by the manufacturer.
(d)
Certification that best management practices for amalgam as
established by the Wisconsin Dental Association are being implemented.
(e)
The person responsible for assuring compliance with the amalgam separator requirement in this Subsection
D.
(6) Dental clinics shall obtain records from the contractors used to
remove amalgam waste for each shipment. The records shall show the
volume or mass of amalgam waste shipped, the name and address of the
destination, and the name and address of the contractor. Dental clinics
shall maintain these records for a minimum of five years. Dental clinics
shall make these records available to the Control Authority for review
and copying at the request of the City.
(7) Dental clinics shall allow the Control Authority to inspect the vacuum
system, amalgam separator, amalgam waste storage areas, and other
areas deemed necessary by the Control Authority to determine compliance
with this subsection. Inspections shall occur by appointment during
the normal operating hours of the dental clinic as long as advance
notice does not impede enforcement of this subsection.
E. Permits for commercial or industrial users.
(1) The City may require a permit under this section for commercial or
industrial users to regulate the discharge of wastes and wastewater
to an intercepting sewer that have the potential individually or cumulatively
to impact the ability of the City to meet its current or future potential
WPDES permit requirements or impact the ability of the sewer system
to convey wastewater to the wastewater treatment plant. Such wastes
and wastewaters include but are not limited to:
(b)
Stormwater, groundwater, rain water, street drainage, roof runoff,
and subsurface drainage.
(c)
Unpolluted water, including but not limited to cooling water,
process water or blow down from cooling towers or evaporative coolers.
(d)
Temperature or thermal loads.
(f)
Mercury or other toxic chemicals.
(2) Permit application and process. Permits under this section may require
the following provisions:
(a)
A written application containing the name, address, and telephone
number of the user, and the identity of an authorized representative
to act on its behalf.
(b)
The imposition of average and/or maximum limits of various wastewater
constituents which may be discharged by the user.
(c)
The requirement to use best management practices, source reduction,
or treatment as appropriate.
(d)
The description of any sampling, monitoring, or reporting requirements.
(e)
A compliance schedule for construction of pretreatment facilities
if required.
(f)
A statement concerning the City's right to inspect the
industry's facilities.
(g)
Other terms and conditions deemed necessary by the Control Authority
to effectively regulate the discharge of concern.
(h)
A time limit for the permit not to exceed five years.
(i)
The provisions of §
639-29C through
I of the Fond du Lac City Code apply, except as modified by the permit.
No unauthorized person shall willfully damage or tamper with
any structure, appurtenance or equipment which is a part of the sewerage
system. Any person violating this provision shall be subject to prosecution
and possible arrest.