No person shall discharge or cause to be discharged any of the
following described waters or wastes to any public sewers:
(1)
Any gasoline, benzene, naphtha, fuel oil, or other flammable or explosive
liquid, solid or gas.
(2)
Any stormwater, surface water, groundwater, roof runoff, subsurface
drainage, uncontaminated cooling water, or unpolluted industrial process
waters to any sanitary sewer. Stormwater and all other unpolluted
drainage shall be discharged to such sewers as are specifically designated
as combined sewers or storm sewers, or to a natural watercourse approved
by the approving authority. Industrial cooling water or unpolluted
process water may be discharged, on approval of the approving authority,
to a storm sewer, combined sewer, or natural watercourse.
(3)
Any liquid or vapor having a temperature higher than one hundred
fifty (150) degrees Fahrenheit (65.6° centigrade) or any discharge
which causes the temperature of the total wastewater treatment plant
influent to increase at a rate of ten (10) degrees Fahrenheit (5.6°
centigrade) or more per hour, or a combined total increase to a plant
influent temperature of one hundred ten (110) degrees Fahrenheit (43.3°
centigrade).
(4)
Any water or waste containing fats, wax, grease or oils, whether
emulsified or not, in excess of one hundred (100) mg/l or containing
substances which may solidify or become viscous at temperatures between
thirty-two (32) degrees Fahrenheit (0° centigrade) and one hundred
fifty (150) degrees Fahrenheit (65.6° centigrade).
(5)
Any garbage that has not been properly shredded. The installation
and operation of any garbage grinder equipped with a motor of three-fourths
(3/4) horsepower or greater shall be subject to the review and approval
of the approving authority.
(6)
Any waters or wastes containing strong acid, iron pickling wastes,
or concentrated plating solutions, whether neutralized or not.
(7)
Any waters or wastes containing objectionable or toxic substances,
or wastes exerting an excessive chlorine requirement, to such degree
that any such material received in the composite wastewater at the
wastewater treatment works exceeds the limits established by the approving
authority for such materials.
(8)
Any waters or wastes containing obnoxious, 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, or create any hazard
in the receiving waters of the wastewater treatment plant, including
but not limited to:
(A)
Any cyanide greater than 1.0 mg/l.
(B)
Any fluoride other than that contained in the public water supply.
(C)
Any chlorides greater than 250 mg/l.
(D)
All heavy metals and toxic materials, including but not limited to
the following, shall be excluded from the wastewater system:
Antimony
Arsenic
Barium
Beryllium
Bismuth
Boron
Cadmium
Chromium (Hexa)
Chromium (Tri)
Cobalt
Copper
Iron
Lead
Manganese
Mercury
Molybdenum
Nickel
Rhenium
Selenium
Silver
Strontium
Tellurium
Tin
Uranyl ion
Zinc
(9)
Any waters or wastes having a pH lower than 5.5, or higher than 9.5,
or having any other corrosive property capable of causing damage or
hazard to structures, equipment, and personnel at the wastewater facilities.
(10)
Solid or viscous substances in quantities or of such size capable
of causing obstruction to the flow in sewers or other interference
with the proper operations of the wastewater works, 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, hair and fleshings, entrails and paper dishes, cups,
milk containers, etc., either whole or ground by garbage grinders,
lime slurry, lime residues, slops, chemical residues, paint residues,
or bulk solids.
(11)
Any waters or wastes containing phenols, hydrogen sulfide, or other
taste-and odor-producing substances, in such concentration exceeding
limits which may be established by the approving authority, as necessary,
after treatment of the composite wastewater, to meet the requirements
of the state, federal, or other public agencies having jurisdiction
for such discharge to the receiving waters.
(12)
Any radioactive wastes or isotopes of such half-life or concentration
as may exceed limits established by the approving authority in compliance
with applicable state or federal regulations.
(13)
Materials which exert or cause:
(A)
Unusual concentrations of inert suspended solids greater than 250
mg/l (such as, but not limited to, Fuller’s earth, lime slurries,
and lime residues) or of dissolved solids greater than 500 mg/l (such
as, but not limited to, sodium chloride and sodium sulfate).
(B)
Excessive discoloration (such as, but not limited to, dye wastes
and vegetable tanning solutions).
(C)
Unusual BOD (greater than the amount established in the definition of “normal domestic wastewater” in section 13.04.001), chemical oxygen demand, or chlorine demand in such quantities as to constitute a significant load on the wastewater treatment works.
(D)
Unusual volume of flow or concentration of wastes constituting “slugs”
as defined herein shall be regulated to equalize the flow and/or concentration
to levels acceptable to the city if such waste can cause damage to
collection facilities, impair the treatment process, incur treatment
costs exceeding those for normal wastewater or render the waste unfit
for stream disposal or industrial use.
(14)
Waters or wastes containing substances which are not amenable to
treatment or reduction by the wastewater treatment processes employed,
or are amenable to treatment only to such degree that the wastewater
treatment plant effluent cannot meet the requirements of other agencies
having jurisdiction over discharge to the receiving waters.
(15)
Except in quantities or concentrations or with provisions as stipulated
herein, it shall be unlawful for any person, corporation or individual
to discharge water or wastes to the sanitary sewer that:
(A)
Can deposit grease or oil in the sewer lines in such a manner as
to clog the sewers;
(B)
Can overload skimming and grease-handling equipment;
(C)
Are not amenable to bacterial action and will, therefore, pass to
the receiving waters without being affected by normal wastewater treatment
processes; or
(D)
Can have deleterious effects on the treatment process due to the
excessive quantities.
(Ordinance adopted 12/11/78, art.
II, sec. 1)
(b)
Unless authorized by the terms of a permit from the state commission on environmental quality or other state regulatory agency, no person shall deposit or discharge without the approval of the approving authority any waste included in subsection (a) of this section on public or private property in or adjacent to any:
(c)
The approving authority shall verify prior to discharge that wastes authorized to be discharged under the provisions of subsection (b) of this section will receive suitable treatment within the provisions of laws, regulations, ordinances, rules and orders of federal, state and local governments.
(Ordinance adopted 12/11/78, art.
II, sec. 1A)
(a)
If any waters or wastes are discharged, or are proposed to be discharged, to the public sewers, which contain the substances or possess the characteristics enumerated in section 13.04.031, and which, in the judgment of the approving authority, may have a deleterious effect upon the wastewater works, processes, equipment, or receiving waters, or which otherwise create a hazard to life or constitute a health hazard or public nuisance, the approving authority may:
(b)
If the approving authority permits the pretreatment or equalization
of waste flows, the design and installation of the plant and equipment
shall be subject to the review and approval of the approving authority,
and subject to the requirements of all applicable codes, ordinances,
and laws.
(Ordinance adopted 12/11/78, art.
II, sec. 2)
Grease, oil and sand traps shall be provided for the proper
handling of the discharge to public sewers of liquid wastes containing
grease in excessive amounts, or any flammable wastes, sand or other
harmful ingredients; except that such traps shall not be required
for private living quarters or dwelling units. All traps shall be
of a type and capacity approved by the approving authority, and shall
be located as to be readily and easily accessible for cleaning and
inspection.
(Ordinance adopted 12/11/78, art.
II, sec. 3)
Where preliminary treatment or flow-equalizing facilities are
provided for any waters or wastes, they shall be maintained continuously
in satisfactory and effective operation by the owner at his expense.
(Ordinance adopted 12/11/78, art.
II, sec. 4)
The owner of any property serviced 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 accessible and safely
located, and shall be constructed in accordance with plans approved
by the approving 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.
(Ordinance adopted 12/11/78, art.
II, sec. 5)
All measurements, tests, and analyses of the characteristics
of waters and wastes to which reference is made in this article shall
be determined in accordance with the latest edition of Standard Methods
for the Examination of Water and Wastewater, and shall be determined
at the control manhole provided, or upon suitable samples taken at
said control manhole. Sampling shall be carried out by customarily
accepted methods to reflect the effect of constituents upon the sewage
works and to determine the existence of hazards to health, life, limb,
and property. The particular analyses involved will determine whether
a twenty-four (24) hour composite sample from all outfalls of the
premises is appropriate or whether a grab sample or samples should
be taken. Normally, but not always, BOD and suspended solids analyses
are obtained from 24-hour composites of all outfalls, whereas pH’s
are determined from periodic grab samples.
(Ordinance adopted 12/11/78, art.
II, sec. 6)
No statement contained in this article shall be construed as
preventing any special agreement or arrangement between the city and
an industrial concern whereby an industrial waste of unusual strength
or character may be accepted by the city for treatment provided that
the waste control order (discharge permits), state commission on environmental
quality orders, and other federal, state and local laws are not violated.
(Ordinance adopted 12/11/78, art.
II, sec. 7)
