6.09  RESTRICTION ON USE OF SEWERS AND DRAINS.

(A)   CLEAR WATER.

It shall be unlawful for any person to discharge or cause to be discharged to the sanitary sewer any storm water, surface water, ground water, clear water, air conditioning water, roof run-off or subsurface drainage or any substance which is deemed deleterious to the operation of the sewage system including the Wastewater Treatment Plant.

(B)   OTHER DISCHARGE.

No person shall discharge or cause to be discharged any of the following described water or wastes to any sanitary sewer:

(1)   Any liquid or vapor having a temperature higher than 150 degrees F.

(2)   A water or waste which may contain more than 100 parts per million by weight of fat, oil, or grease.

(3)   Any gasoline, benzene, naphtha, fuel oil or other inflammable or explosive liquid, solid or gas.

(4)   Any garbage that has not been properly shredded.

(5)   Any ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, paunch manure or any solid or viscous substance capable of causing obstruction of the flow in sewers or other interference with the proper operation of the sewage works.

(6)   Any waters or wastes having a pH lower than 5.5 or higher than 9.0 or having a corrosive property capable of causing damage or hazard to structures, equipment and personnel of the sewage works.

(7)   Any water 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.

(8)   Any noxious or malodorous gas or substance capable of creating a public nuisance.

(C)   GREASE, OIL, AND SAND INTERCEPTORS.

(1)   Grease, oil and sand interceptors shall be provided when in the opinion of the Board of Public Works, they are necessary for the proper handling of liquid wastes, sand and other harmful ingredients.  All interceptors shall be of a type and capacity approved by the Board of Public Works and shall be located so 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 change 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 watertight.

(3)   Where installed, all grease, oil and sand interceptors shall be maintained by the owner, at his expense, in continuously efficient operation at all times.

(D)   PRELIMINARY TREATMENT FACILITIES.

Where preliminary treatment facilities are required by City, State and Federal regulation for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation, by the owner, at his expense.  Such facilities shall be required to treat unacceptable wastes which can be pretreated to acceptable levels.  The City, however, reserves the right to exclude any and all industrial wastes where such wastes are deemed harmful to the sewer system or to the treatment facility.

(E)   MANHOLES.

When required by the Board of Public Works, the owner of any property serviced by a building sewer carrying industrial waste shall install a suitable control manhole in the building sewer to facilitate observation, sampling and measurement of wastes.  Such manhole, when required, shall be accessible and safely located and shall be constructed in accordance with plans approved by the City.  The manhole shall be installed by the owner at his expense, and shall be maintained by him so as to be safe and accessible at all times.

(F)   DISCHARGE TO STORM SEWER.

No person shall discharge or cause to be discharged to any storm sewer, catch basin, or to surfaces that drain to storm sewer any substance other than storm water, non-contact cooling water, or other clean water.  Specifically, prohibited discharges include, but are not limited to, the following:

(1)   Water containing soap, detergents, solvents, or other cleaning compounds, or mop water or other water contaminated by use for cleaning from industrial, commercial or business operations or activities.

(2)   Oil, grease, food materials, human or animal bodily wastes, paint, or water containing these substances.

(3)   Any combustible liquid.

(4)   Grass, leaves, or other organic materials.

(5)   Any other contaminant that is harmful to the storm sewer system or persons working on or in the storm sewer system, or the natural aquatic environment.  (Ord. #3351 created 3/12/92)