(A) No person shall discharge or cause to be discharged into the POTW, either directly or indirectly, any waste, wastewater, or other substance which will cause interference with the operation or performance of the POTW.
(B) No person shall discharge or cause to be discharged into the POTW, either directly or indirectly, any of the following described substances, waste, or wastewater:
(1) Any wastewater having a temperature which will inhibit biological activity in the POTW treatment plant resulting in interference; but in no case wastewater with a temperature which exceeds 150° F. (65° C.).
(2) Any wastewater containing wax, grease, oil, plastic, or other substance that will solidify or become discernibly viscous at temperatures between 32° to 150° F.
(3) 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 POTW, to the operation of the POTW, to the health and safety of personnel maintaining and operating the POTW, or to any other persons or property.
(4) Any solids, floatable, slurries or viscous substances of such character as to be capable of causing obstruction to the flow in sewers, or other interference with the proper operation of the POTW, such as ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, whole blood, paunch manure, hair and fleshings, entrails, lime residues, slops, chemical residues, paint residues, or bulk solids.
(5) Any garbage that has not been properly comminuted or shredded to such a degree that all particles will be carried freely under the flow conditions normally prevailing in the public sewers, with no particle greater than 1/2 inch in any dimension.
(6) Any wastewater having a pH lower than 5.5 or higher than 9.5, or having any other corrosive property capable of causing damage or hazard to structures, equipment, and/or personnel of the POTW.
(7) Any wastewater containing toxic pollutants in sufficient quantity, either singly or by interaction with other pollutants, to injure or interfere with any wastewater treatment process, constitute a hazard to humans or animals, create a toxic effect in the receiving waters of the POTW, or to exceed the limitation set forth in a Categorical Pretreatment Standard. A toxic pollutant shall include but not be limited to any pollutant identified pursuant to Section 307(a) of the Act.
(8) Any noxious or malodorous liquids, gases, or solids which either singly or by interaction with other wastes are sufficient to create a public nuisance or hazard to life or are sufficient to prevent entry into the sewers for maintenance and repair.
(9) Any substance which may cause the POTW's effluent or any other product of the POTW such as residues, sludges, or scums, to be unsuitable for reclamation and reuse or to interfere with the reclamation process. In no case, shall a substance discharged to the POTW cause the POTW to be in noncompliance with sludge use or disposal criteria, guidelines, or regulations developed under Section 405 of the Act; or any criteria, guidelines, or regulations affecting sludge use of disposal developed pursuant to the Solid Waste Disposal Act, the Clean Air Act, the Toxic Substances Control Act, or State criteria applicable to the sludge management method being used.
(10) Any substance which will cause the POTW to violate its NPDES and/or State discharge permit or receiving water quality standards.
(11) Any wastewater with objectionable color not removed in the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions.
(12) Any slugload, which shall mean any pollutant, including oxygen demanding pollutants (BOD, ammonia, and the like) released in an extraordinary discharge episode of such volume or pollutant concentration as to cause interference to the POTW. In no case shall a slugload have a flow rate or contain concentration or qualities of pollutants that exceed for any time period longer than 15 minutes more than five times the average 24-hour concentration, quantities, or flow during normal operation.
(13) Any wastewater which causes a hazard to human life or creates a public nuisance.
(14) Any wastewater containing any radioactive waste or isotope of such half-life or concentration as may exceed limits established by the city - in compliance with applicable State and/or Federal regulations.
(15) Any cyanide greater than 0.5 parts per million, as CN.
(16) Any chromium greater than five parts per million as trivalent chromium of 0.5 parts per million as hexavalent chromium.
(17) Any arsenic greater than 0.05 parts per million.
(18) Any copper greater than one part per million.
(19) Any nickel greater than one part per million.
(20) Any cadmium greater than two-hundredths part per million.
(21) Any zinc greater than 0.1 parts per million.
(22) Any phenols greater than 12 parts per million.
(23) Any iron greater than five parts per million.
(24) Any tin greater than one part per million.
(25) Any barium greater than one part per million.
(26) Any boron greater than one part per million.
(27) Any lead greater than 0.1 part per million.
(28) Any manganese greater than one part per million.
(29) Any mercury greater than 0.005 parts per million.
(30) Any selenium greater than 0.02 parts per million.
(31) Any silver greater than 0.02 parts per million.
(32) Any chlorides in concentrations greater than 250 parts per million.
(C) No person shall discharge, or cause to be discharged, any storm water, groundwater, rood runoff, subsurface drainage, downspouts, yard drains, yard fountains, ponds, or lawn sprays into any sanitary sewer. Storm water and all other such unpolluted drainage water shall be discharged to such sewers as are specifically designated as storm sewers, or to a natural outlet approved by the Control Authority.
(D) No wastewater may be discharged into any storm sewer within the city.
(E) No wastewater may be discharged into any waters of the state within the city, unless expressly authorized by the Texas Water Commission and the EPA.
(F) No person shall discharge, or cause to be discharged into the POTW any wastewater or other wastes containing:
(1) Free or emulsified oil and grease, or combinations thereof, exceeding on analysis an average of 100 parts per million (833 pounds per million gallons) of either or both, if in the opinion of the Control Authority it appears probable that such wastes:
(a) Will deposit grease or oil in the sewer lines in such a manner to clog the sewers;
(b) Will overload skimming and grease-handling equipment;
(c) Will not be amenable to bacterial action and will therefore pass to the receiving water without being affected by normal sewage treatment processes; or
(d) Will have deleterious effect on the treatment process due to the excessive quantities.
(2) Cyanides or cyanogen compounds capable of liberating hydrocyanic gas on acidification in excess of 0.5 parts per million by weight as CN within the sewer system.
(G) If the Control Authority determines that any person is discharging, or causing to be discharged, to the POTW any wastewater, or other substance in violation of the prohibitions in this section, the Control Authority may take enforcement action pursuant to § 52.75.
(Ord. 338A, passed 5-5-92) Penalty, see § 52.99