No person shall discharge or cause to be discharged any stormwater,
surface water, groundwater, roof runoff, subsurface discharge, cooling
water or unpolluted industrial process waters to any sanitary sewer.
(Ord. 371 §6.1, 1986; Ord. 427 §1, 1997)
Stormwater and all other unpolluted drainage shall be discharged
to such sewers as are specifically designated as storm sewers or to
a natural outlet. Industrial cooling water or unpolluted process waters
shall be discharged in such manner acceptable to and approved by the
Department of Environmental Quality.
(Ord. 371 §6.2, 1986; Ord. 427 §1, 1997)
Except as hereinafter provided, no person shall discharge, or
cause to be discharged any of the following described waters or wastes
to any public sewer:
(A) Any
liquid or vapor having a temperature higher than 150 degrees Fahrenheit.
(B) Any
water or waste which may contain more than 100 parts per million,
by weight, of fat, oil or grease.
(C) Any
gasoline, benzene, naphtha, fuel oil, or other flammable or explosive
liquid, solid, or gas.
(D) Any
household garbage that has not been properly shredded.
(E) Any
ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers,
tar, plastics, wood, manure, or any other solid or viscous substance
capable of causing obstruction to the flow in sewers or to other interference
with the proper operation of the sewage collection facilities, pumping
stations, force mains and treatment works.
(F) Any
waters or wastes having a pH lower than 6.0 or higher than 8.5 or
having any other corrosive property capable of causing damage or hazard
to structure, equipment, and 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, or fish life, or create any
hazard in waters receiving the effluent from the treatment works.
(H) Any
waters or wastes containing suspended solids of such character and
quantity that unusual attention or expense is required to handle such
material at the sewage treatment plant.
(Ord. 371 §6.3, 1986; Ord. 427 §1, 1997)
Grease, oil and sand interceptors shall be proved by the owner
of any property when, in the opinion of the Superintendent, they are
necessary for the proper handling of liquid wastes containing grease
in excessive amounts, or any flammable wastes, sand, and other harmful
ingredients, shall be of a type and capacity approved by the Superintendent,
and shall be located as to be readily and easily accessible for cleaning
and inspection. Grease and oil interceptors shall be constructed of
impervious materials capable of withstanding abrupt and extreme changes
in temperature. They shall be of substantial construction, watertight,
and equipped with easily removable covers which, when bolted in place,
shall be gas-tight and water-tight.
(Ord. 371 §6.4, 1986; Ord. 427 §1, 1997)
Where installed, all grease, oil and sand interceptors shall
be maintained by the owner at his/her expense, in continuously efficient
operation at all time.
(Ord. 371 §6.5, 1986; Ord. 427 §1, 1997)
The admission into the public sewers of any waters of wastes having: (1) a five-day biochemical oxygen demand greater than 100 parts per million by weight; or (2) containing any quantity of substances having the characteristics described in Section
3.68.030; or (3) containing more than 100 parts per million by weight of suspended solids; or (4) having an average daily flow greater than five percent of the average daily sewage flow of the City, shall be subject to the review and approval of the City. Where necessary in the opinion of the City, the owner shall provide, at his/her expense, such preliminary treatment as may be necessary to: (1) reduce the biochemical oxygen demand to 100 parts per million and the suspended solids to 100 parts per million by weight; or (2) reduce objectionable characteristics or constituents to within the maximum limits provided for in Section
3.68.030; or (3) control the quantities and rates of discharge of such waters or wastes. Plans, specifications, and any other pertinent information relating to proposed preliminary treatment facilities shall be submitted for the approval of the City and the Oregon Department of Environmental Quality, and no construction of such facilities shall be commenced until said approvals are obtained in writing.
(Ord. 371 §6.6, 1986; Ord. 427 §1, 1997)
Where preliminary treatment facilities are provided for any
waters or wastes, they shall be maintained continuously in satisfactory
and effective operation by the owner at his/her expense.
(Ord. 371 §6.7, 1986; Ord. 427 §1, 1997)
When required by the Superintendent, the owner of any property
served by a side sewer and building sewer carrying industrial wastes
shall install a suitable control manhole in the side sewer or building
sewer to facilitate observation, sampling and measurement of the wastes.
Such manhole, when required, shall be accessible and safely located,
and shall be constructed in accordance with plans approved by the
Superintendent. The manhole shall be installed by the owner at his/her
expense, and shall be maintained by the owner so as to be safe and
accessible at all times.
(Ord. 371 §6.8, 1986; Ord. 427 §1, 1997)
All measurements, tests and analysis of the characteristics of waters and wastes to which reference is made in Sections
3.68.030 and
3.68.060 shall be determined in accordance with "Standard Methods for the Examination of Water and Sewage," and shall be determined at the control manhole. In the event that no special manhole has been required, the control manhole shall be considered to be the nearest downstream manhole in the public sewer to the point at which the building sewer is connected.
(Ord. 371 §6.9, 1986; Ord. 427 §1, 1997)
No statement contained in this article shall be construed as
preventing any special agreement or arrangement between the City and
any industrial concern whereby an industrial waste of unusual strength
or character may be accepted by the City for treatment, subject to
payment therefor by the industrial concern and under such conditions
and circumstances as the City may specify.
(Ord. 371 §6.10, 1986; Ord. 427 §1, 1997)