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B. Except in quantities, or concentration, or with provisions as stipu-
lated herein, it shall be unlawful for any person, corporation or individual,
to discharge water or wastes to the sanitary sewer containing:
(1) Free emulsified oil and grease exceeding on analysis an average
of one hundred (100) parts per million (eight hundred thirty-
three (833) pounds per million gallons) of either or both or com-
binations of free or emulsified oil and grease, if, in the
opinion of the manager, it appears probable that such wastes:
(a) Can deposit grease or oil in the sewer lines in such a
.. manner as to clog the sewers;
(b) Can over -load skimming and grease handling equipment;
(c) Are not amenable to bacterial action and will therefore
pass to the receiving waters without being affected by
normal sewage treatment processed; or,
(d) Can have deleterious effects on the treatment process due
to the excessive quantities.
(2) Acids or alkalies which attack or corrode sewers or sewage dis-
posal structures, or have a pH value lower than 5.5 or higher than
9.5;
(3) Cyanide or cyanogen compounds capable of liberating hydrocyanic
gas on acidification in excess of two (2) parts per million by
weight as CN in the wastes from any outlet into the public sewers;
(4) Materials which exert or cause:
(a) Unusual concentrations of solids or composition; as for
example; total .suspended solids of greater than 250 parts
per million of inert nature or such as Fuller's Earth and
or total dissolved solids such as sodium chloride, or sodium
sulfate;
(b) Excessive discoloration;
(c) Biochemical oxygen demand or an immediate oxygen demand
greater than two hundred (250) parts per million;
(d) High hydrogen sulfide content, or
(e) Unusual flow and concentration shall be pretreated to a
concentration acceptable to the Georgetown Water and
Sewer System if such wastes can cause damage to collection
facilities, impair the processes, incur treatment cost
exceeding those of normal sewage, or render the water
unfit for stream disposal or industrial use.
SECTION 3. PRETREATMENT AND CONTROL OF INDUSTRIAL WASTES.
A. Persons or owners discharging industrial wastes which exhibit any of the
prohibited wastes set out in this ordinance shall be required to pretreat said wastes
or otherwise dispose of such wastes so as to make the remaining waste acceptable
to the City of Georgetown prior to admission of said waste into a sanitary sewer.
B. Plans, specifications, and any other pertinent information relating to
proposed preliminary treatment and control facilities shall be submitted for the
approval of the City of Georgetown, and no construction of such facilities shall
be commenced until approval is obtained in writing. Preliminary treatment and
control facilities shall be constructed so as to provide all of the following:
(1) Prevention of prohibited waste from entering a sanitary sewer;
(2) Control of the quantities and rates of discharge of industrial
wastes into a sanitary sewer; and,
(3) An accessible entry so that any authorized employee of the City of