No leaders from roofs and no surface drainage for rain water shall be connected to any sanitary sewer. No surface or storm water, seepage, cooling water or unpolluted industrial process waters shall be permitted to enter any sanitary sewer by any device or method whatsoever.
(Ord. 82-12 § 43, 1982)
Storm water and all other unpolluted drainage shall be discharged into such sewers as are specifically designated as storm sewers, or into a natural outlet approved by the Engineer. Industrial cooling water or unpolluted process waters may be discharged, as permitted by State requirements and upon approval of the Engineer into a storm sewer or natural outlet.
(Ord. 82-12 § 44, 1982; Ord. 2009-01 § 2)
Except as hereinafter provided, no person shall discharge or cause to be discharged any of the following described waters or wastes into any public sewer:
A. 
Any liquid or vapor having a temperature higher than 150 degrees F.
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 garbage that has not been shredded to such a degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers, with no particle greater than one-half inch in any dimension.
E. 
Any ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, paunch manure, 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 sewage works.
F. 
Any waters or wastes having a pH lower than 5.5 or higher than 9.0 or having any other corrosive property capable of causing damage or hazard to structures, 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 or animals, or create any hazard in the receiving waters of the sewage treatment plant.
H. 
Any waters containing suspended solids of such character and quantity that unusual attention or expense 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.
J. 
Any septic tank sludge.
(Ord. 82-12 § 45, 1982)
Grease, oil and sand interceptors shall be provided when, in the opinion of the Engineer, they are necessary for the proper handling of liquid wastes, containing grease in excessive amounts, or any flammable wastes, sand, and other harmful ingredients; except that such interceptors shall not be required for buildings used for residential purposes. All interceptors shall be of a type and capacity approved by the Engineer, and shall be so located as to be readily and easily accessible for cleaning and inspection.
(Ord. 82-12 § 46, 1982)
All grease, oil and sand interceptors and records of maintenance may be inspected by the person designated by the City Manager. Property owners shall make reasonable accommodations to allow inspection.
(Ord. 90-3, 1990; Ord. 2009-01 § 2)
The admission or discharge into the public sewers of any waters or wastes: (A) having a five-day biochemical oxygen demand greater than 300 parts per million by weight; or (B) containing more than 350 parts per million by weight of suspended solids; or (C) containing any quantity of any substance having the characteristics described in Section 13.07.030; or (D) having an average daily flow greater than two percent of the average daily sewage flow of the City, shall be subject to the review and approval of the Engineer. Where necessary in the opinion of the Engineer, the owner shall provide, at his or her expense, such preliminary treatment as may be necessary to: (A) reduce the biochemical oxygen demand to 300 parts per million and the suspended solids to 350 parts per million by weight; or (B) reduce objectionable characteristics or constituents to within the maximum limits provided for in Section 13.07.030; or (C) control the quantities and rates of discharge of such waters or wastes. Admission or discharge to the public sewers of any such water or waste without the prior approval of the Engineer, or in violation of the Engineer's requirement for preliminary treatment, is unlawful.
Plans, specifications and any other pertinent information relating to proposed preliminary treatment facilities shall be submitted for the approval of the Engineer and of the Regional Water Quality Control board of the State, and no construction of such facilities shall be commenced until such approvals are obtained in writing.
(Ord. 82-12 § 48, 1982; Ord. 97-11 § 7, 1997)
When required by the Engineer the owner of any property served by the side sewer carrying industrial wastes shall install a suitable control manhole in the side sewer to facilitate observation, sampling and measurement of wastes. Such manhole, when required, shall be accessibly and safely located, and shall be constructed in accordance with plans approved by Engineer. The manholes shall be installed by the owner at his or her expense, and shall be maintained by him or her so as to be safe and accessible at all times.
(Ord. 82-12 § 49, 1982)
All measurements, tests and analyses of the characteristics of waters and wastes to which reference is made in Sections 13.07.030 and 13.07.060 shall be determined in accordance with standard methods and shall be determined at the control manhole provided for in Section 13.07.080, or upon suitable samples taken at such 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 side sewer is connected.
(Ord. 82-12 § 50, 1982; Ord. 97-11 § 7, 1997)
No statement contained in this chapter 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 subject to such terms and conditions as might be required by the City.
(Ord. 82-12 § 51, 1982)