Sec. 23-27. Use of public sewers.
(e) Prohibited discharges. No user shall
contribute or cause to be contributed, directly or indirectly, any pollutant
or wastewater which will interfere with performance of the publicly owned
treatment works (POTW). These general
prohibitions apply to all such users of a POTW whether or not the user is
subject to national categorical pretreatment standards or any other national,
state, or local pretreatment standards or requirements. A user shall not
contribute the following substances to the POTW:
(1) Any liquids, solids or gases which by reason of their nature or quantity
are, or may be, sufficient either alone or by interaction with other
substances to cause fire or explosion or be injurious in any other way to the
POTW or to the operation of the POTW. At no time shall the wastewater exhibit
a closed cup flashpoint of less than one hundred forty (140) degrees
Fahrenheit or sixty (60) degrees Centigrade using the test methods specified
in 40 CFR 261.21.
(2) Any waters or wastes having a pH lower than 5.5 or higher than 9.0 or
having any other corrosive property capable of causing damage or hazard to
structures, equipment, and personnel of the POTW.
(3) Any slug load of pollutants, including oxygen demanding pollutants (BOD,
etc.), released at a flow rate and/or concentration that will cause
interference with the normal operation of the POTW.
(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 wastewater facilities such as, but not limited to,
ashes, cinders, sand, rocks, mud, straw, shavings, metal, glass, rags,
feathers, tar, plastics, wood, unshredded garbage, whole blood, paunch manure,
hair and flesh, entrails, paper products such as cups, dishes, napkins, and
milk containers, etc.
(5) Any wastewater having a temperature which will inhibit biological
activity in the POTW treatment plant resulting in interference, but in no case
wastewater with a temperature at the introduction into the POTW that will
result in a treatment plant influent temperature which exceeds forty (40)
degrees Centigrade (one hundred four (104) degrees Fahrenheit).
(6) Any pollutant(s) 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.
(7) Any substance which may cause the POTW's effluent or any other product of
the POTW such as residues, sludges, or scum, to be unsuitable for reclamation
and reuse or to interfere with the reclamation process where the POTW is
pursuing a reuse and reclamation program. In no case shall a substance
discharged to the POTW cause the POTW to be in non-compliance with sludge use
or disposal criteria, guidelines or regulations developed under Section 405 of
the Act; any criteria, guidelines, or regulations affecting sludge use or
disposal developed pursuant to the Solid Waste Disposal Act, the Clean Air
Act, the Toxic Substances Control Act, or state criteria applicable to the
sludge management method being used.
(8) Any substance which will cause the POTW to violate its NPDES/KPDES permit
and/or sludge disposal system permit.
(9) Any trucked or hauled pollutants except at discharge points designated by
the General Manager.
(Ord. No. 55-95, Art. II, 11-28-95; Ord. No. 40-02, 12-21-02)
Sec. 23-29. Building sewers and connections.
(b) Prohibited connections.
(1) No person shall make connection of roof downspouts, basement wall seepage
or floor seepage, exterior foundation drains, areaway drains, or other surface
runoff or groundwater to a building sewer or building drain which in turn is
connected directly or indirectly to a public sanitary sewer. Any such
connections which already exist on the effective date of this division shall
be completely and permanently disconnected within sixty (60) days of the
effective date of this division. The owner(s) of any building sewers having
such connections, leaks or defects shall bear all costs incidental to removal
of such sources. Pipes, sumps, and pumps for such sources of ground and
surface water shall be separate from wastewater facilities. Removal of such
sources of water without presence of separate facilities shall be evidence of
drainage to public sanitary sewer.
(2) Floor, basement, or crawl space drains which are lower than ground
surfaces surrounding the building shall not be connected to the building
sanitary sewer. No sanitary inlet which is lower than six (6) inches above the
top of the lowest of the two adjacent public sanitary sewer manholes shall be
connected by direct drainage to the building sanitary sewer.
(3) Construction of new combined sewers and the introduction of inflow
sources to the sanitary sewer system is strictly prohibited by this division.
All new construction tributary to the combined sewer system must be designed
such that inflow contribution to the combined sewer system is minimized and/or
delayed as much as is possible. The domestic waste connection(s) of any new
buildings constructed after the effective date of this division must be
distinct from the building inflow connection in order to facilitate
disconnection if a storm sewer becomes available.
(Ord. No. 55-95, Art. IV, 11-28-95)
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