In addition to the general prohibitions set out above, no person shall discharge, or cause, suffer or permit to be discharged, to the POTW any of the following pollutants:
(A) Other waste, as defined in this chapter;
(B) Flammable or explosive liquids, solids or gases, and similar substances that may create a fire or explosive hazard in the collection system or the POTW including, without limitation, pollutants with a closed cup flashpoint of less than 40°F (60°C) utilizing the test methods specified in 40 C.F.R. § 261.21, as amended;
(C) Pollutants regulated pursuant to any categorical pretreatment standard promulgated by EPA in a concentration or amount in excess of the limit specified in the standard;
(D) Any wastewater having a temperature of 120°F (48.9°C) or higher, or at a temperature that will inhibit biological activity in the POTW resulting in interference or increase the temperature of the influent to the treatment plant to 104°F (40°C) or higher;
(E) Garbage other than comminuted garbage;
(F) Noxious or malodorous liquids, gases, solids or other substances in wastewater which, either singly or by interaction with other materials, are sufficient to create a public nuisance or hazard to life or prevent entry into sewers for maintenance or repair;
(G) Pollutants that result in the presence of toxic gases, vapors or fumes within the POTW in a quantity or concentration capable of causing danger to life, health or safety;
(H) Fat, oil, grease or similar material in excess of an instantaneous maximum allowable limit of 200 milligrams per liter;
(I) Substances having a pH value lower than 6.0 or higher than 11.5, or any acid, alkali or other substance that damages, by corrosion or otherwise, any part of the POTW or sanitary sewer;
(J) Petroleum oil, nonbiodegradable cutting oil or products of mineral oil origin in amounts that will cause interference or pass through;
(K) Any waste trucked or hauled from its point of origin that contains a pollutant prohibited by this chapter unless otherwise specifically approved by the Director based upon criteria and procedures set out in this chapter;
(L) Any material removed from a pretreatment facility or private sewage facility, except at discharge points designated by the Director;
(M) Any of the following pollutants in solution or suspension in concentrations exceeding the following prescribed limits:
Pollutant | Monthly Average Limits in mg/l |
Pollutant | Monthly Average Limits in mg/l |
Arsenic, Total (T) | 0.2 |
Cadmium (T) | 0.5 |
Chromium (T) | 2.5 |
Copper (T) | 1.9 |
Cyanide (T) | 1.0 |
Fluoride (T) | 65 |
Lead (T) | 0.4 |
Manganese (T) | 6.1 |
Mercury (T) | 0.002 |
Nickel (T) | 1.6 |
Silver (T) | 1.0 |
Total Toxic Organics* | 2.0 |
Zinc (T) | 2.3 |
*The Total Toxic Organics (TTO) limit applies to the sum of the concentrations of toxic organics listed in Table II of Appendix D, 40 C.F.R. part 122. | |
(N) Phenols or other substances in concentrations as to produce odor or taste in the waters receiving wastewater treatment plant effluent where the receiving waters are used as drinking water;
(O) Wastewater containing radioactive materials in concentrations greater than allowable under current regulations of the State Department of Health or other agency of competent jurisdiction;
(P) Solids or viscous pollutants in quantities or concentrations capable of causing obstruction to the flow in the POTW or any portion of the collection system thereby resulting in interference;
(Q) Any pollutant including, without limitation, oxygen demanding pollutants (BOD and the like) discharged to the POTW at a flow rate and/or pollutant concentration capable of causing interference or which are otherwise not amenable to treatment;
(R) Any pollutant that imparts color that cannot be removed by the treatment process including, without limitation, dye water, vegetable tanning solutions or whole blood, which consequently imparts color to the treatment plant effluent;
(S) Medical wastes except in accordance with the terms and conditions of a wastewater discharge permit issued under this chapter;
(T) Any sludges, screenings or other residues from the pretreatment of industrial waste or other prohibited waste unless otherwise specifically authorized by the Director in accordance with the criteria and the procedures set forth in this chapter;
(U) Any pollutants in wastewater that, alone or in conjunction with other sources of waste water, cause the treatment plant effluent to fail a toxicity test;
(V) Wastes containing detergents, surface active agents or other substances that may cause foaming in the POTW or treatment plant effluent that results in a violation of the permit or of the City of Austin’s NPDES permit;
(W) Wastewater causing a single reading over 10% of the lower explosive limit (LEL) of an explosion hazard meter;
(X) Antifreeze or coolant solutions used in vehicles or motorized equipment;
(Y) A discharge at a flow rate or quantity that exceeds the carrying capacity of that part of the collection system through which it flows; and
(Z) Drainage water or ground water that has become contaminated by one or more pollutants prohibited by this chapter unless all of the following conditions are met:
(1) An assessment has been made by the Director of the characteristics, volume and concentrations of the pollutants involved;
(2) A determination has been made by the Director that discharge to the city sewer system is an appropriate disposal method;
(3) A determination has been made by the Director that discharge of the pollutant(s) in question will not cause harm to the city sewer system or to employees or to other persons or property;
(4) Pretreatment of the polluted water by the discharger to the discharge standards of this chapter for the pollutants in question;
(5) Presentation to the Director of an application for a wastewater discharge permit conforming in all respects to the requirements of this chapter; and
(6) Issuance of a wastewater discharge permit by the Director pursuant to the provisions of this chapter setting forth the conditions to which the proposed discharge is subject.
(Ord. 970318A, passed 3-18-1997) Penalty, see § 51.999