Chapter 22 PUBLIC WORKS AND IMPROVEMENTS*
Section 22-215 Unlawful discharges.
Except as hereinafter provided, it shall be unlawful for any person to discharge
or cause to be
discharged into any sewer any of the following described substances, materials, water or wastes:
(1) Any liquid or vapor having a temperature higher than
one hundred fifty (150) degrees
Fahrenheit (sixty-five (65) degrees Celsius).
(2) Any pollutants with a closed cup flashpoint of less
than one hundred forty (140) degrees
Fahrenheit (sixty (60) degrees Celsius).
(3) Any gasoline, benzine, naphtha, fuel oil, mineral
oil, or other flammable or explosive
liquid, solid or gas.
(4) Any water or wastes containing more than two hundred
(200) mg/l of fat, oil or grease.
(5) Any water or wastes that contain grease or oil or
other substances that will solidify or
become discernibly viscous at temperatures between thirty-two (32) and one hundred fifty (150)
degrees Fahrenheit (zero (0) and sixty-five (65) degrees Celsius).
(6) Any garbage that has not been properly shredded or
comminuted to a degree that all
particles will be carried freely under the flow conditions of the sewer with no particle greater
than one-half inch in any dimension.
(7) Any ashes, cinders, sand, mud, straw, shavings, metal,
glass, rags, feathers, tar, plastics,
wood, paunch manure, hair and fleshings, entrails, lime slurry, lime residues, beer or distillery
slops, chemical residues, paint residues, unapproved cannery waste, bulk solids, or any other
solid or viscous substance capable of causing obstruction to the flow in sewers or other
interference with the proper operation of the wastewater treatment plant.
(8) Any water or wastes having corrosive properties capable
of causing damage or hazard to
pipe, structures, equipment or personnel of the wastewater treatment plant or collection system.
Free acids and alkalis of such wastes must be neutralized within a permissible range of pH
between 5.5 and 9.5. The director may grant variances for higher pH than 9.5, but in no event
lower than 5.5.
(9) Any water or wastes containing a toxic or poisonous
substance, that result in toxic gases,
fumes, or vapors, or of high chlorine demand in sufficient quantity to injure or interfere with any
POTW process, constitute a hazard to worker health and safety, or to other humans or animals, or
create any hazard in the receiving waters or the effluent of the wastewater treatment plant.
(10) Any water or wastes which contain more than ten
(10) mg/l by weight of the following
gases: hydrogen sulfide, sulfur dioxide or nitrous oxide.
(11) Any water or wastes containing the discharge of
acid pickling wastes or concentrated
plating solutions, whether neutralized or not, which are capable of causing any obstruction,
damage or corrosion in the sewers or the wastewater treatment plant.
(12) Any waters containing suspended solids of such character
and quantity that unusual
provision, attention or expense is required to handle such materials at the wastewater treatment
(13) Any noxious or malodorous gas or other substance
which either singly or by interaction
with other wastes is capable of creating public nuisance or hazard to life or of preventing entry
into sewers for maintenance and repair.
(14) Any waters, wastes, materials or substances which
react with water or wastes in the
sewer system to release noxious gases, develop color of undesirable intensity, form suspended
solids in objectionable concentration, or create any other condition deleterious to structures and
(15) Any water or wastes which do not comply with applicable
state and federal
pretreatment standards and requirements.
(16) No user shall introduce or cause to be introduced
into the POTW any pollutant or
wastewater which causes pass through or interference. These general prohibitions apply to all
users of the POTW whether or not they are subject to categorical pretreatment standards or any
other national, state, or local pretreatment standards or requirements.
(17) No user shall introduce or cause to be introduced
into the POTW any pollutants,
including oxygen-demanding pollutants (BOD, etc.), released in a discharge at a flow rate or
pollutant concentration which, either singly or by interaction with other pollutants, will cause
interference with the POTW.
(Ord. No. 14914, § 1, 8-5-96; Ord. No. 16734, § 1, 1-2-01)
(Ord. 16734, Amended, 01/02/2001, Prior Text)