[Ord. No. 45-1999, § 600.1, 2-1-2000]
No person shall cause a connection to be made to a City sanitary
sewer which 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. No direct connection shall be made from a public or private
water supply to a building drain discharging to any sanitary sewer.
[Ord. No. 45-1999, § 600.2, 2-1-2000]
Stormwater and all other unpolluted drainage may be discharged
to such sewers as are specifically designated as storm sewers, or
to a natural outlet approved by the City. Industrial cooling water
or unpolluted process waters may be discharged, on approval of the
City, to a storm sewer or natural outlet, if in accordance with regulations
of the state department of environmental protection.
[Ord. No. 45-1999, § 600.3, 2-1-2000]
Except as provided in this article, no person shall discharge
or cause to be discharged any of the following described waters or
wastes to any public sewer:
(1) Any liquid or vapor having a temperature higher than 150° F.
(65° C.).
(2) Any waters or wastes which contain fats, grease or oil, or other
substances in excess of 100 mg/l, whether emulsified or not, that
will solidify or become viscous at temperatures between 32° F.
and 150° F.
(3) Any waters or wastes containing soluble fats, grease or oils, whether
emulsified or not, exceeding an average 100 parts per million, which,
in the opinion of the City, may overload or inhibit the pollution
control facility's processes.
(4) Any gasoline, benzene, naphtha, fuel oil, mineral oil, or other flammable
or explosive liquid, solid or gas.
(5) Any noxious or malodorous gas such as hydrogen sulfide, sulfur dioxide
or nitrous oxide, or other substances which, either singly or by interaction
with other wastes, are capable of creating a public nuisance or hazard
to life or of preventing entry into sewers for their maintenance and
repair.
(6) Any garbage that has not been properly shredded. The installation
and operation of any garbage grinder equipped with a motor of 3/4
horsepower or greater shall be subject to the review and approval
of the City.
(7) Any ashes, cinders, sand, mud, straw, shavings, metal, glass, rags,
feathers, tar, plastic, cardboard, wood, paunch manure, hair and fleshings,
entrails, lime slurry, lime residues, beer or distillery slops, whey,
chemical residues, paint residues, cannery waste, bulk solids, or
other solid or viscous substance capable of causing obstruction to
the flow of the sewers or other interference with proper operation
of the sewage works.
(8) Any waters or wastes, acid and alkaline in reaction, having corrosive
properties capable of causing damage or hazard to structures, equipment
and personnel of the sewage works. Free acids and alkalis must be
neutralized at all times, within a permissible pH range of 6.0 to
9.5.
(9) Radioactive wastes or isotopes of halflife or concentrations as may
exceed limits established by the City in compliance with applicable
state or federal regulations.
(10)
Quantities of flow, or concentrations of any wastewater constituent,
or both, which would constitute a slug.
(11)
Any stormwater, roof drainage, spring water, cistern or tank
overflow, footing drainage, or discharge from any vehicle wash rack
or water motor, or the contents of any privy vault, septic tank or
cesspool, or the discharge of effluent from any air conditioning machine
or refrigeration unit.
(12)
Any waters or wastes containing a toxic or poisonous substance,
high chlorine or oxygen demand, or suspended solids in sufficient
quantity to injure or interfere with any sewage treatment process,
constitute a hazard to humans or animals, or create any hazard or
violation in the receiving waters or effluent of the City's sewage
treatment plant, or contaminate or restrict the final end use of the
treatment plant's sludge residuals. Such toxic substances shall be
limited to the average concentrations listed in this subsection in
the sewage as it leaves the building sewer, and at no time shall the
hourly concentration at the sewage treatment plant exceed three times
the average concentration. If concentrations listed are exceeded,
individual establishments will be subject to control by the City in
volume and concentration of wastes discharged.
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Limits of Toxic Substances in Sewage
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Iron, as Fe
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5.0 ppm
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Chromium, as Cr (hexavalent)
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1.0 ppm
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Copper, as Cu
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1.0 ppm
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Chlorine demand
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15.0 ppm
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Phenol
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0.5 ppm
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Cadmium, as Cd
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0.5 ppm
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Zinc, as Zn
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0.5 ppm
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Nickel
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1.0 ppm
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Mercury, as Hg
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0.0 ppm
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The City may periodically modify this list of regulated toxic
substances and allowable concentrations in accordance with federal
Environmental Protection Agency protocol for the development of technically
based local limits. The City will provide advance written notice of
new local limits to users prior to initiating enforcement actions.
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(13)
Waters or wastes containing strong acid iron pickling wastes,
or concentrated plating solutions, whether neutralized or not.
(14)
Waters or wastes containing phenols, or other taste- or odor-producing
substances, in such concentrations exceeding limits which may be established
by the City as necessary, after treatment of the composite sewage,
to meet the requirements of the state, federal, or other public agencies
of jurisdiction for such discharge to the receiving waters.
(15)
Waters or wastes containing substances which are not amenable
to treatment or reduction by the waste treatment processes employed,
which may inhibit treatment plant processes or sludge quality or disposal,
or which are amenable to treatment only to such degree that the sewage
treatment plant effluent cannot meet the requirements of other agencies
having jurisdiction over the discharge to the receiving waters.
(16)
Any heated waters or pollutants in amounts which will inhibit
or interfere with biological activity in the City's wastewater treatment
facilities, but in no case heated waters or pollutants in such quantities
that the temperature at the pollution control facility's influent
exceeds 104° F. (40° C.).
(17)
Any waters or wastes containing color, dissolved solids, or
dye which would cause a visible discoloration of the treatment's plant's
effluent or receiving water.
(18)
Any waters or wastes containing suspended solids, whether inert
or organic, which would cause visible turbidity of the treatment plant's
effluent or receiving water.
(19)
Any waters, wastes or substance which would cause the treatment
plant's effluent to exceed toxicity testing limits as may be required
by applicable state or federal law.
(20)
Any boiler blowoffs or sediment trap wastes.
(21)
Any septage or septic process discharge without the express
written approval of the City.
[Ord. No. 45-1999, § 600.4, 2-1-2000]
(a) Any discharge of waters or wastes having any of the following characteristics
shall be subject to the review and approval of the City:
(1)
Having a five-day biochemical oxygen demand greater than 300
parts per million;
(2)
Containing more than 350 parts per million of suspended solids;
(3)
Containing more than 15 parts per million of chlorine demand;
(4)
Containing any quantity of substances having the characteristics
described in this division; or
(5)
Having an average daily flow or pollutant mass greater than
2% of the average daily sewage flow of the City.
(b) Where necessary, in the opinion of the City, the owner shall provide,
at his expense, such pretreatment as may be necessary to:
(1)
Reduce the biochemical oxygen demand to 300 parts per million
and the suspended solids to 350 parts per million by weight;
(2)
Reduce the chlorine demand to 15 parts per million;
(3)
Reduce objectionable characteristics or constituents to within
the maximum limits provided for in this division; or
(4)
Control the quantities and rates of discharge of such waters
or wastes.
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Plans, specifications, and any other pertinent information relating
to proposed pretreatment facilities shall be submitted for the approval
of the City, and no construction of such facilities shall be commenced
until such approvals are obtained in writing. Failure to comply with
one or more of the remedial procedures as required by the City will
constitute a violation of this article.
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[Ord. No. 45-1999, § 600.5, 2-1-2000]
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 accepted edition of Standard
Methods for the Examination of Water and Wastewater, upon suitable
samples taken at a control manhole as provided for in division 7 of
this article. If no manhole has been required, the manhole shall be
considered to be the nearest downstream manhole in the public sewer
from the point at which the building sewer is connected.
[Ord. No. 45-1999, § 600.6, 2-1-2000]
No statement contained in this division 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 therefor by the industrial concern.
[Ord. No. 45-1999, § 600.7, 2-1-2000]
All of the standards in this division are to apply at the point
where the industrial wastes are discharged into the public sanitary
sewer system, and any pretreatment required must be accomplished to
practical completion before the wastes reach that point. The laboratory
methods used in the examination of all industrial wastes shall be
those set forth in the latest accepted edition of Standard Methods
for the Examination of Water and Wastewater. However, alternate methods
for the analysis of industrial wastes may be used subject to mutual
agreement between the City and the producer of such wastes. The frequency
and duration of the sampling of any industrial waste shall not be
less than once every three months for a twenty-four-hour period. However,
more frequent and longer periods may be required at the discretion
of the City.
[Ord. No. 45-1999, § 600.8, 2-1-2000]
(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 this division and which, in the
judgment of the City, 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 City
may:
(1)
Reject the wastes and require separate treatment;
(2)
Require pretreatment to an acceptable condition before discharge
to the public sewers;
(3)
Require control over the quantities and rates of discharge;
and/or
(4)
Require payment under the provisions of this article to cover
the added cost of handling and treating of such wastes.
(b) If the City permits the pretreatment or equalization of waste flows,
the design and installation of plants and equipment shall be subject
to the review and approval of the City, and subject to the requirements
of all applicable codes, ordinances and laws, including federal Environmental
Protection Agency pretreatment standards.