[Ord. No. 3761 §1, 2-20-2008]
A. No
person shall discharge or cause to be discharged any stormwater, surface
water, ground water, roof runoff, subsurface drainage including interior
and exterior foundation drains, areaway drains, uncontaminated cooling
water or unpolluted industrial process waters to any sanitary sewer.
B. 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 Street Superintendent. Industrial cooling water or
unpolluted process waters may be discharged, on approval of the Street
Superintendent, to a storm sewer or natural outlet.
[Ord. No. 3761 §1, 2-20-2008]
A. No
person shall discharge or cause to be discharged any of the 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 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 including, but not limited to, cyanides in excess of two (2)
mg/l as CN in the wastes as discharged to the public sewer.
3. Any waters or wastes having a pH lower than five and one-half (5.5)
or having any other corrosive property capable of causing damage or
hazard to structures, equipment and personnel of the sewage works.
4. 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, mild
containers, etc., either whole or ground by garbage grinders.
[Ord. No. 3761 §1, 2-20-2008]
A. No
person shall discharge or cause to be discharged the following described
substances, materials, waters or wastes if it appears likely, in the
opinion of the Superintendent, that such wastes can harm the sewers,
sewage treatment process or equipment, have an adverse effect on the
receiving stream or otherwise endanger life, limb or public property
or constitute a nuisance. In forming his/her opinion as to the acceptability
of these wastes, the Superintendent will give consideration to such
factors as the quantities of subject wastes in relation to flows and
velocities in the sewers, materials of construction of the sewers,
nature of the sewage treatment process, capacity of the sewage treatment
plant, degree of treatability of wastes in the sewage treatment plant
and other pertinent factors. The substances prohibited are:
1. Liquids over one hundred fifty degrees Fahrenheit. Any liquid or vapor having a temperature higher than one hundred
fifty degrees Fahrenheit (150°F) (sixty-five degrees Centigrade
(65°C)).
2. Fats, grease and oils. Any water or wastes 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 and one hundred
fifty degrees Fahrenheit (32°F — 150°F) (zero and sixty-five
degrees Centigrade (0 — 65°C)).
3. Improperly shredded garbage. Any garbage that has
not been properly shredded. The installation and operation of any
garbage grinder with a motor of three-fourths (¾) horsepower
(0.76 horsepower metric) or greater shall be subject to the review
and approval of the Superintendent.
4. Acid wastes. Any waters or wastes containing strong
acid iron pickling wastes or concentrated plating solutions, whether
neutralized or not.
5. Heavy metal 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
works exceeds the limits established by the Superintendent for such
materials.
6. Taste- and odor-producing substances. Any waters
or wastes containing phenols or other taste- or odor-producing substances
in such concentrations exceeding limits which may be established by
the Superintendent as necessary, after treatment of the composite
sewage, to meet the requirements of State, Federal or other public
agencies or jurisdictions for such discharge to the receiving waters.
7. Radioactive wastes. Any radioactive wastes or isotopes
of such half-life or concentration as may exceed limits established
by the Superintendent in compliance with applicable State or Federal
regulations.
8. Highly alkaline wastes. Any waters or wastes having
a pH in excess of 9.5.
9. Miscellaneous substances. Materials which exert
or cause:
a. Unusual concentrations of inert suspended solids (such as, but not
limited to, Fuller's earth, lime slurries and lime resides) or of
dissolved solids (such as, but not limited to, sodium chloride or
sodium sulfate).
b. Excessive discoloration (such as, but not limited to, dye wastes
and vegetable tanning solutions).
c. Unusual BOD, chemical oxygen demand or chlorine requirements in such
quantities as to constitute a significant load on the sewage treatment
works.
d. Unusual volume of flow or concentration of wastes constituting "slugs"
as defined herein.
10. Substances not amenable to treatment. 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.
11. High BOD and/or suspended solids wastes. Any waters
or wastes having:
a. A five (5) day BOD greater than three hundred (300) parts per million
by weight; or
b. Containing more than three hundred fifty (350) parts per million
by weight of suspended solids; or
c. Having an average daily flow greater than two percent (2%) of the
average sewage flow of the City shall be subject to the review of
the Superintendent.
12. Where necessary, in the opinion of the Superintendent, the owner
shall provide, at his/her expense, such preliminary treatment as may
be necessary to:
a. Reduce the biochemical oxygen demand to three hundred (300) parts
per million by weight; or
b. Reduce the suspended solids to three hundred fifty (350) parts per
million by weight; or
c. Control the quantities and rates of discharge of such waters or wastes.
Plans, specifications and any other pertinent information relating
to proposed preliminary treatment facilities shall be submitted for
the approval of the Superintendent and no construction of such facilities
shall be commenced until such approvals are obtained in writing.
[Ord. No. 3761 §1, 2-20-2008]
A. 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 Section
710.310 and which, in the judgment of the Superintendent, may have a deleterious effect upon the sewage works, processes, equipment or receiving waters or which otherwise create a hazard to life to constitute a public nuisance, the Superintendent may:
2. Require pretreatment to an acceptable condition for discharge to
the public sewers;
3. Require control over the quantities and rates of discharge; and/or
4. Require payment to cover the added cost of handling and treating the wastes not covered by existing taxes or sewer charges under the provisions of Section
710.360.
B. If
the Superintendent permits the pretreatment or equalization of waste
flows, the design and installation of the plants and equipment shall
be subject to the review and approval of the Superintendent and subject
to the requirements of all applicable codes, ordinances and laws.
[Ord. No. 3761 §1, 2-20-2008]
Grease, oil and sand interceptors shall be provided when, in the opinion of the Superintendent, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts or any flammable wastes, sand or other harmful ingredients; except, that such interceptors shall not be required for private living quarters or dwelling units. All interceptors shall be of a type and capacity approved in accordance with the
Grease Management Program Specifications. Three (3) copies of the specifications are on file in the office of the City Clerk of the City of De Soto, Missouri, being marked and designated as the "
Grease Management Program Specifications".
[Ord. No. 3761 §1, 2-20-2008]
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/her expense.
[Ord. No. 3761 §1, 2-20-2008]
When required by the Superintendent, 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 Superintendent. The manhole
shall be installed by the owner at his/her expense and shall be maintained
by him/her so as to be safe and accessible at all times.
[Ord. No. 3761 §1, 2-20-2008]
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" published jointly by
the American Public Health Association, American Waterworks Association
and the Water Pollution Control Federation and shall be determined
at the control manhole provided or upon suitable samples taken at
such control manhole. In the event that no special manhole has been
required, the control manhole shall be considered to be the nearest
downstream manhole in the public sewer to the point at which the building
sewer is connected. 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 life, limb and property.
(The particular analyses involved will determine whether a twenty-four
(24) hour composite of all outfalls of a premises is appropriate or
whether grab samples should be taken. Normally, but not always, BOD
and suspended solids analyses are obtained from twenty-four (24) hour
composites of all outfalls, whereas pHs are determined from periodic
grab samples.) The cost of any analysis required by the City shall
be borne by the owner.
[Ord. No. 3761 §1, 2-20-2008]
No statement contained in this Article shall be construed as
preventing any special agreement or arrangement between the City and
any industrial concern whereby an industrial waste of unusual strength
or character may be accepted by the City for treatment, subject to
payment therefore by the industrial concern.