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(a) Any liquid or vapor having a temperature of higher
than 1500 P.
(b) Any water or waste which contains more than one
hundred parts per million by weight of fat, oil or grease.
(c) Any gasoline, benzine, naphtha oil, or other flam-
mable or explosive liquids, solids or gas.
(d) Any garbage that has not been properly shredded as herein
defined.
(e) Any ashes, cinders, sand, mud, straw, hair, shav-
ings, metal, glass, rags, feathers, tar, plactic, wood,
manure, or any other solid or viscous substance capable
of causing obstruction to the flow of sewers or other in-
terference with the proper operation of the sewage works.
(f) Any waters or wastes having a PH lower than 5.5 or
higher than 8.5 or having any other corrosive property
capable of causing damage or hazard to structures, equip-
ment or personnel of the sewage works.
(g) Any waters or wastes containing a toxic or poisonous
substance in sufficient quantity to injure or interfere
with any sewage treatment process, constitute a hazard to
humans, animals, fish or fowl, or create any .hazard in
the receiving waters of the sewage treatment plant.
(h) Any waters or wastes containing suspended solids of
such character and quantity that unusual attention or ex-
pense is required to handle such materials at the sewage
treatment plant.
(i) Any noxious or malodorous gas or substance capable
of creating a public nuisance.
Section 10.02: No grease, oil, sand, liquid or other waste
containing grease or flammable material or other harmful ingred-
ients in excessive amounts shall be dishcarged to any public sewer
without the installation of interceptors of a type and capacity to be
approved by the superintendent, and located so as to be readily ac-
cessible for cleaning and inspection, Such intereceptors shall be
maintained at the expense of the owner and shall be in continuously
efficient operation at all times.
Section 10.03: Whenever preliminary treatment is necessary to
reduce the B.O.D. to 300 parts per million by weight, or to reduce
the objectionable character or constituents to within the maximum
limits prescribed by Section 10.01 of this Article, such prelim-
inary treatment shall be at the sole expense of the owner of the
premises and shall be installed when the superintendent determines
that the same is necessary to comply with the standards prescribed.
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