A. No person shall discharge or cause to be discharged any stormwater, surface water, ground water, roof runoff, subsurface drainage or any other unaltered water (unpolluted) to any sanitary sewer.
B. The utility reserves the right to refuse or accept any or all industrial wastewaters from an industry or combination of industries as may be necessary to ensure adequate treatment and proper operation of the sewerage system.
C. No discharger shall contribute or cause to be discharged, directly or indirectly, any of the following described substances into the wastewater disposal system or otherwise to the facilities of the utility:
1. Any liquids, solids or gases which by reason of their nature or quantity are, or may be, sufficient either alone or by interaction to cause fire or explosion or be injurious in any other way to the operation of the city wastewater facilities or wastewater treatment works.
2. Water or wastes containing toxic or poisonous solids, liquids or gases in sufficient quantity, either singly or by interaction with other wastes, to injure or interfere with any waste treatment process, constitute a hazard to humans or animals, or create a public nuisance in the receiving waters or the wastewater treatment plant. The toxics prohibited are those consistent with section 307(A) of the clean water act of 1977.
3. Water or wastes having a pH lower than 6.0 or higher than 9.0 or having any other corrosive property capable of causing damage or hazard to structures, equipment and personnel of the sewerage system.
4. Fluids or solid substances in quantities or of such size as to cause obstruction to the flow in sanitary sewers, or other interference with the proper operation of the sewage treatment plant such as, but not limited to, ashes, cinders, clay, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, unground garbage, whole blood, paunch manure, hair and fleshings, entrails, paper dishes, cups, milk containers, either whole or ground by garbage grinders. (1975 Code Ch. 5 § II)