No person shall discharge or deposit, or cause or allow to be discharged or deposited, into the wastewater treatment system, any wastewater which contains the following:
(A) Explosive Mixtures. Any liquids, solids or gases which, by reason of their nature or quantity, are or may be sufficient, either alone or by interaction with other substances, to cause fire or explosion or be injurious in any other way to the sewerage facilities or to the operation of the system. At no time shall two successive readings on an explosion hazard meter, at the point of discharge into the sewerage system, be more than 5%, nor shall any single reading be over 10% of the Lower Explosive Limit (L.E.L.) of the meter. Prohibited materials include, but are not limited to, gasoline, kerosene, naphtha, benzene, toluene, xylene, ethers, alcohols, ketones, aldehydes, peroxides, chlorates, perchlorates, bromates, carbides, hydrides and sulfides;
(B) Toxic Substances. Any gaseous, liquid or solid substances which, when discharged into the sewerage system in sufficient quantities, may, alone or by interaction with other substances, interfere with any wastewater treatment process, constitute a hazard to persons or animals, inhibit aquatic life or create a hazard to recreation in the receiving waters at the effluent from the wastewater treatment plant, or as defined in § 307(b) of Pub. L. No. 92-500, being 33 U.S.C. § 1317(a), the Clean Water Act;
(C) Solid or Viscous Substances. Construction materials, ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, asphalt, plastic, wood, paunch manure, bones, hair, hides or fleshings, grass clippings, wastepaper or any solid or viscous substance capable of causing obstruction to the flow in sewers or otherwise interfering with the proper operation of the wastewater system;
(D) Oils and Grease. Any water or waste containing fats, wax, grease or oils, whether emulsified or not, in excess of 100 mg/l, or containing substances which may solidify or become viscous at temperatures between 1°C and 65°C at the point of discharge into the system;
(E) Steam and Hot Water. Any hot water, waste or steam with a temperature above 65°C (150°F);
(F) pH and Corrosivity. Any water or waste having a pH lower than 5.5 or higher than 10.0 or which may cause corrosion or deterioration of the system per the MS4 Permit, including, but not limited to, acids, alkalis, sulfides, concentrated chloride and fluoride compounds and substances which will react with water to form acidic products;
(G) Cyanide. Any water or waste containing total cyanide in excess of five mg/l or containing readily releasable cyanide (cyanide released at a temperature of 65°C (150°F and pH = 2.5) in excess of two mg/l;
(H) Radioactive Wastes. Radioactive wastes or isotopes of such half-life or concentration that they do not comply with regulations or orders issued by the appropriate authority having control over their use and/or which may cause damage or hazard to the wastewater system, human beings or animals;
(I) Noxious Materials. Any solids, liquids or gases which, either alone or by interaction with other substances in the wastewater system, are capable of producing objectionable odors or colors or which may otherwise create a public nuisance;
(J) Improperly Shredded Garbage. Garbage that has not been ground or comminuted to such a degree that all particles will be carried freely in suspension under flow conditions normally prevailing in the sewerage system, with no particle greater than one-half inch in any dimension;
(K) Excessive Discharge Rate. Wastewater flow rates which exceed the design capacity of any component of the wastewater system; or
(L) Unpolluted Water. Any water, including, but not limited to, cooling water, storm water, surface water, subsurface drainage, or other relatively unpolluted water which increases the hydraulic load on the wastewater system.
(Ord.14-86, passed 1-21-1986; Ord. 07-16, passed 3-7-2016)