[Adopted as Ch. 97 of the 2000 Code]
No person shall discharge or cause to be discharged 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 storm sewers, or
to a natural outlet approved by the City Engineer. Industrial cooling
water or unpolluted process waters may be discharged on approval of
the City Engineer to a storm sewer or natural outlet.
No person shall discharge or cause to be discharged any of the
following described waters or wastes to any public sewers:
A.
Flammable or explosive material.
Any gasoline, benzene, naphtha, fuel oil or other flammable or explosive
liquid, solid or gas.
B.
Toxic or poisonous materials.
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 sewage treatment process,
constitute a hazard to humans or animals, create a public nuisance,
or create any hazard in the receiving waters of the sewage treatment
plant.
C.
Corrosive wastes. 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 sewage works.
D.
Solid or viscous substances.
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 operation of the sewage 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.
No person shall discharge or cause to be discharged the following
described substances, materials, waters, or wastes without a treatment
agreement permit issued in accordance with the Articles of Agreement.
A.
High temperature. Any liquid
or vapor having a temperature higher than 120° F. (48° C.).
B.
Fat, oil, grease. Any water or
waste containing fats, wax, grease or oils, whether emulsified or
not, in excess of 100 milligrams per liter.
C.
Viscous substances. Water or
wastes containing substances which may solidify or become viscous
at temperatures between 32° and 150° F. (0° and 65°
C.).
D.
Garbage. Any garbage that has
not been properly shredded, that is, to such a degree that all particles
will be carried freely under the flow conditions normally prevailing
in public sewers, with no particle greater than 1/2 inch in any dimension.
E.
Acids. Any waters or wastes containing
strong-acid iron-pickling wastes, or concentrated plating solution
whether neutralized or not.
F.
Toxic or objectionable wastes.
Any waters or wastes containing iron, chromium, copper, zinc, and
similar objectionable or toxic substances; or wastes exerting an excessive
chlorine requirement, to such degree that any such material received
in the composite sewage at the sewage treatment works exceeds the
limits established for such materials.
G.
Odor or taste. Any waters or
wastes containing phenols or other taste- or odor-producing substances,
in such concentrations exceeding limits which may be established to
meet the requirements of state, federal, or other public agencies
of jurisdiction for such discharge to the receiving waters.
H.
Radioactive wastes. Any radioactive
wastes or isotopes of such half-life or concentration as may exceed
limits established in compliance with applicable state or federal
regulations.
I.
Excess alkalinity. Any waters
or wastes having a pH in excess of 9.5.
J.
Unusual wastes. Materials which
exert or cause:
(1)
Unusual concentrations of
inert suspended solids (such as, but not limited to, fuller's earth,
lime slurries and lime residues) or of dissolved 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 B.O.D., chemical
oxygen demand, or chlorine requirements in such quantities as to constitute
a significant load on the sewage treatment works.
(4)
Unusual volume of flow or
concentration of wastes constituting "slugs" as defined herein.
K.
Noxious or malodorous gases.
Any noxious or malodorous gas or other substance which either singly
or by interaction with other wastes is capable of creating a public
nuisance or hazard to life or of preventing entry into sewers for
their maintenance and repair.
L.
Damaging substances. Any waters,
wastes, materials or substances which react with water or wastes in
the sewer system to release noxious gases, develop color of undesirable
intensity, form suspended solids in objectionable concentration or
create any other condition deleterious to structures and treatment
processes.
M.
Untreatable wastes. Waters or
wastes containing substances which are not amenable to treatment or
reduction by the sewage treatment processes employed, or are amenable
to treatment only to such degree that the sewage treatment plant effluent
cannot meet the requirements of other agencies having jurisdiction
over discharge to the receiving waters.
N.
Other. Any water or wastes excluding
sanitary wastes having:
All wastewater treatment agreements will be subject to the permit
classes as outlined in the Cedar Rapids Municipal Code. All terms
of the permit will be established by resolution of the Council according
to the Articles of Agreement.
[Amended 3-23-2023 by Ord. No. 23-02; 8-22-2024 by Ord. No. 24-10]
If any waters or wastes are discharged, or are proposed to be discharged, to the public sewers, which waters contain the substances or possess the characteristics enumerated in § 256-21 and which may have a deleterious effect upon the sewage works, processes, equipment or receiving waters, or which otherwise create a hazard to life or constitute a public nuisance, the Public Works Director or City Engineer may:
