(A) No person shall discharge or cause to be discharged any storm water, surface water, ground water, roof runoff, foundation drainage, cooling water, or upolluted industrial process waters to any sanitary sewer.
(B) Storm water and all other unpolluted drainage shall be discharged to such sewers as are specifically designated as combined sewers or storm sewers, or to a natural outlet approved by the inspector. Industrial cooling water or unpolluted process waters may be discharged, upon approval of the inspector, to a storm sewer, combined sewer, or natural outlet.
(C) 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:
(1) Any liquid or vapor having a temperature higher than 150°F;
(2) Any water or waste which may contain more than 100 parts per million, by weight, of fat, oil, or grease;
(3) Any gasoline, benzene, naptha, cleaning solvent, fuel oil, or other flammable or explosive liquid, solid, or gas;
(4) Any garbage that has not been properly shredded;
(5) Any concentrated or high strength industrial wastes such as whole blood, whole milk, whey, eggs, or any milk processing waste and other wastes which contain large amounts of organic materials;
(6) 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;
(7) Any waters or wastes having a pH lower than five and one-half or higher than nine, or having any other corrosive property capable of causing damage or hazard to structures, equipment, and personnel of the sewage works;
(8) 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;
(9) Any waters or wastes having a biochemical oxygen demand (BOD) or suspended solids concentration in excess of 300 ppm or of such character and quantity that unusual attention or expense is required to handle such materials at the sewage treatment plant; or
(10) Any noxious or malodorous gas or substance capable of creating a public nuisance.
(D) (1) Grease, oil, and sand interceptors shall be provided when, in the opinion of the inspector, 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 private living quarters or dwelling units. All interceptors shall be of a type and capacity approved by the inspector, and shall be located as to be readily and easily accessible for cleaning and inspection.
(2) 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 gastight and watertight.
(E) Where installed, all grease, oil, and sand interceptors shall be maintained by the owner, at his or her expense, in continuously efficient operation at all times.
(F) 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 or her expense.
(G) When required by the inspector, the owner of any property served by a building sewer carrying industrial wastes shall install a suitable control manhole in the building sewer to facilitate observation, sampling, and measurement of the wastes. Such manhole, when required, shall be accessibly and safely located, and shall be constructed in accordance with plans approved by the inspector. The manhole 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. 5-10, passed 6-8-1974) Penalty, see § 52.99