No person shall discharge or cause to be discharged into any
sanitary sewers any stormwater, surface water, groundwater, roof run-off,
subsurface drainage, cooling water or unpolluted industrial or commercial
process water.
Stormwater and surface drainage shall be admitted to only such
sewers as are specifically designated as storm sewers or storm drains.
Unpolluted process and cooling waters may, upon written application
and approval by the approving authority, be discharged to storm sewers
or storm drains.
Except as hereinafter provided, no person shall discharge or
cause to be discharged any of the following described waters or waste
into any public sanitary sewer:
A.
Any clothing, rags, textile, remnants or wastes, cloth, scraps, etc.,
except fibers, scraps, etc., which will pass through a 1/4-inch mesh
screen or its equivalent in screening ability.
B.
Any liquid or vapor having a temperature higher than 160°.
C.
Any water or waste containing more than 100 parts per million by
weight or fats, oils or grease.
D.
Any liquids, solids or gases which, by reason of their nature or
quality, may cause fire or explosion, or be in any way injurious to
persons, the sewerage system, the sewage treatment works or the operation
of the sewage treatment works.
E.
Any liquid wastes in which the suspended solids exceed 250 parts
per million by weight, except as hereinafter provided for.[1]
F.
Any water or wastes having a stabilized pH lower than 6.0 or higher
than 8.5 or having other corrosive property capable of causing damage
or hazard to structures, equipment or personnel of the sewage works.
G.
Any waters or waste containing a poisonous or toxic substance or
any other materials in sufficient quantity to injure or interfere
with any sewage treatment process, or constitute a hazard to humans
or animals or create any hazard in the receiving stream at the sewage
treatment plant.
H.
Any waters or waste containing suspended solids of such character
and quantity that unusual attention or expense is required to handle
such materials in the sewerage system.
I.
Any noxious or malodorous gas or substance capable of creating a
public nuisance.
J.
Any garbage that has not been properly shredded.
K.
Any ashes, cinders, sand, mud, straw, shavings, metal, glass, bones,
feathers, tar, plastics, wood, paunch manure, butcher's offal or any
other solid or viscous substances capable of causing obstruction to
the flow in sewers or other interference with the proper operation
of the sewerage system.
L.
Any materials which form excessive amounts of scum that may interfere
with the operation of the sewage treatment works or cause undue additional
labor in connection with its operation.
M.
Any waters or wastes containing dyes or other color which cannot
be removed through biological processes and which require special
chemical treatment.
N.
Any waters or waste containing lint in such quantities as to be detrimental
to sewer lines, sewage pumps or sewage treatment works.
The approving authority, without limitation by other sections of this Part 1, may authorize any person to discharge industrial waste of unusual strength or character into the sewers of the City under approved conditions or pretreatment. The approving authority may prohibit entry of particular industrial waste into the sanitary sewer whenever such action is necessary to prevent damage to the system or to determine the effects of such wastes on the sewage system.
