1.
No person shall discharge, or cause to be discharged, the following
substances if it appears likely, in the opinion of the City Commission,
that such wastes can harm the sewers, the sewage treatment process
or equipment, have an adverse effect on the receiving stream, otherwise
endanger life, limb or public property, or otherwise constitute a
nuisance. Prohibited substances are:
a.
Flammable or explosive materials;
b.
Water or waste containing fats, wax, grease, or oils in excess of
100 mg/l, or containing any substance which may solidify or become
viscous at temperatures higher than 32° F.;
c.
Any liquid or vapor having a temperature higher than 150° F.;
d.
Any garbage or food waste not properly shredded (the installation
and operation of any grinder or shredder equipped with a motor of
three-fourths horsepower or greater shall be subject to review and
approval by the City Commission);
e.
Any waters or wastes containing the metals listed below or other
toxic substances in quantities determined by the sewer inspector to
be harmful:
(1)
Antimony.
(2)
Arsenic.
(3)
Barium.
(4)
Beryllium.
(5)
Bismuth.
(6)
Boron.
(7)
Cadmium.
(8)
Chromium.
(9)
Cobalt.
(10)
Copper.
(11)
Iron.
(12)
Lead.
(13)
Manganese.
(14)
Mercury.
(15)
Molybdenum.
(16)
Nickel.
(17)
Rhenium.
(18)
Selenium.
(19)
Silver.
(20)
Strontium.
(21)
Tellurium.
(22)
Tin.
(23)
Uranium.
(24)
Zinc.
f.
Any water or waste containing iron-pickling wastes or plating solutions;
g.
Any waters or wastes containing phenols or other taste or odor-producing
substances;
h.
Any radioactive wastes of a half-life or concentration determined
by the City Commission to be harmful;
i.
Any water or wastes having pH lower than 5.5, or having a pH higher
than 10.5, or having any corrosive property capable of damaging installations,
equipment or personnel of the sewerage works;
j.
Solid or viscous substances of such size or in such quantities capable
of causing obstruction of sewers or interference with operation of
sewage works, such as ashes, cinders, mud, straw, shavings, metal
glass, rags, feathers, tar, plastics, wood, unground garbage, whole
blood, paunch manure, hair, fleshing, entrails, and paper containers;
k.
Wastes containing unusual concentrations of suspended solids, such
as fuller's earth, lime or clay;
l.
Wastes containing unusual concentrations of dissolved substances,
such as sodium chloride or sodium sulfate;
m.
Water or wastes containing excessive coloration, such as that caused
by dye wastes and tanning solutions;
n.
Wastes containing unusual concentrations of organic material, such
as whey, milk, yeast, blood, or unusual biochemical oxygen demand
(BOD), chemical oxygen demand (COD), or chlorine requirement, constituting
a significant load on the sewage treatment facilities; or
o.
Materials which cause unusual volume or flow or concentration of
wastes constituting slugs which adversely affect the sewage treatment
process.
2.
If any waters or wastes are discharged or proposed to be discharged,
or if in the opinion of the City Commission, might be accidentally
discharged, which contain the substances described above, the City
Commission may prohibit their discharge, require the establishment
to alter or initially construct its facilities so that accidental
discharges may not occur, require the responsible party to pretreat
the wastes before discharge, limit the quantity, rates and times of
discharge, require the installation of a control manhole for observation,
sampling, and metering of the wastes, or assess a surcharge based
on the quantity and strength of the wastes. If pretreatment is to
be accomplished, the design, installation and operation of the plant
and equipment shall be subject to the review and approval of the City
Commission.
1.
Applications for permits for sewer connections for industrial wastes
shall show the following information:
a.
A plat of the property showing all existing sewers and storm drains;
b.
Plans and specifications covering any work proposed to be done under
the permit;
c.
A schedule of all process waters and industrial wastes produced or
to be produced, a description of the character of each waste, the
daily volume and maximum rates of discharge, and representative analysis;
and
d.
The name of the firm or person who will perform the work covered
by the application.
2.
The City Administrator or his designated agent shall cause to be
served on the owner or occupant of any establishment having sewer
connections which do not conform to the provisions hereof at the time
of passage of this Code,[1] a notice in writing, advising that requirements must be
met within 90 days. If, after 90 days from the day of service of the
notice, the proper measures have not been taken, enforcement action
may be initiated as set forth elsewhere in this Chapter.
[1]
Editor's Note: These provisions are continued from the
1990 Code.
3.
The City Administrator shall cause samples of wastes from industrial
establishments to be obtained and tested periodically to determine
the quantity and composition thereof.
