1. Pollutants that create a fire or explosive hazard in the POTW, including, but not limited to, waste streams with a closed-cup flashpoint of less than 140 degrees Fahrenheit (or 60 degrees Celsius) using the test methods specified in 40 CFR 261.21. Prohibited materials include, but are not limited to, gasoline, kerosene, naphtha, benzene, toluene, xylene, ethers, alcohols, ketones, aldehydes, peroxides, chlorates, perchlorates, bromides, carbides, hydrides, sulfides, and any other substances that the city, the state, or the EPA has notified the user are a fire hazard or hazard to the system in quantities that violate the explosivity standards herein at the point of entry to the collection system.

2. Any liquid, solids, or gases that 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 or to the operation of the POTW. At no time shall two successive readings on a combustible gas detection meter, at the point of discharge into the system (or at any point in the system), be more than five percent nor any single reading over 10 percent of the lower explosive limit (LEL) of the meter.

3. Wastewater having a pH less than five or more than 11, or wastewater having any other corrosive property capable of causing damage or hazard to structures, equipment, and/or personnel of the collections system, and/or the POTW.

4. Any solids, fats, oils, greases, waxes, slurries, or viscous substances in such character or quantity that will cause obstruction of the flow in a sewer or interference with the operation of the POTW including, but not limited to: any garbage or putrescible material with particles greater than one-quarter inch in any dimension. Specifically prohibited substances in amounts that produce interference include, but are not limited to, animal guts or tissues, paunch manure, bones, hair, hides or fleshings, entrails, whole blood, feathers, ashes, cinders, sand, spent lime, stone or marble dust, metal, glass, straw, shavings, grass clippings, rags, fibrous tissues, spent grains, spent hops, waste paper, wood, plastics, gas, tar, asphalt residues, residues from refining or processing of fuel oil, lubricating oil and mud, or glass grinding or polishing wastes.

5. Any used oil and grease, including but not limited to petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin, in amounts that may cause interference or pass through, unless authorized by the director.

6. Pollutants, including oxygen-demanding pollutants (BOD, glycol, etc.), released in a discharge at a flow rate and/or pollutant concentration that, either singly or by interaction with other pollutants, may cause interference or pass through, unless authorized by the director.

7. Wastewater having a temperature that will inhibit biological activity in the treatment plant resulting in interference, but in no case shall liquid or vapor be discharged in such quantities that causes the temperature of the POTW to exceed 104 degrees Fahrenheit (or 40 degrees Celsius) unless the director approves alternate temperature limits.

8. Pollutants that result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health and safety problems or contribute to a violation of air emission standards. The POTW will not accept a waste stream that contains pollutants regulated under the National Emission Standard for Hazardous Air Pollutant Standard (NESHAP) as described in 40 CFR 63.

9. Trucked or hauled pollutants (including domestic sewage or septic tank waste) unless authorized by the director, and at discharge points designated by the director in accordance with BMC 15.12.210.

10. Noxious or malodorous liquids, gases, solids, or other wastewater that, either singly or by interaction with other wastes, are sufficient to create a public nuisance or a hazard to life, prevent entry into the sewers for maintenance or repair, create a toxic effect in the receiving waters of the POTW, or exceed the limitation set forth in a categorical pretreatment standard.

11. Wastewater with excessive color or turbidity that imparts color, as determined by the director, that cannot be removed by the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions, that consequently imparts color to the treatment plant’s effluent.

12. Wastewater containing any radioactive wastes or isotopes except as specifically approved by the director in compliance with applicable state or federal regulations.

13. The following are prohibited, except as specifically authorized by the director under extraordinary circumstances, such as lack of direct discharge alternatives due to combined sewer service or need to augment sewage flows due to septic conditions (as required under WAC 173-216-050):

14. Any sludges, screenings, or other residues from the pretreatment of industrial or commercial wastes or from industrial or commercial processes, except as authorized by the director.

15. Medical wastes, except as authorized by the director; provided, however, that the director shall not authorize the discharge of pharmaceutical hazardous waste or U.S. Drug Enforcement Administration controlled substances.

16. Any wastewater containing pathogenic or genetically modified wastes which, in sufficient quantity, either singly or by interaction with other substances after discharge and upon exposure, either directly from the environment or indirectly by ingestion or other exposure pathways, has the potential to cause death, disease, behavioral abnormalities, cancer, genetic mutation, biological disruption, or physiological malfunctions in humans or animals.

17. Wastewater causing, alone or in conjunction with other sources, the treatment plant’s effluent to fail a toxicity test.

18. Firefighting foams, detergents, surface-active agents, or other substances in amounts that may cause excessive foaming in the collection system or at the POTW, unless authorized by the director.

19. Hazardous wastes, except as authorized by the director pursuant to BMC 15.14.055.

20. Dangerous wastes, except as authorized by the director pursuant to BMC 15.14.055.

21. Persistent pesticides and/or pesticides regulated by the Federal Insecticide Fungicide Rodenticide Act.

22. Any slug load as defined in this chapter, or any pollutant, including oxygen-demanding pollutants, released in a single extraordinary discharge episode of such volume or strength as to cause interference to the POTW.

23. Any substance that may cause the effluent or treatment residues, sludges, or scums of the POTW 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 the sludge use or 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.

24. Any wastewater that, in the reasonable opinion of the director, can cause harm either to the sewers, sewage treatment process, or equipment; have an adverse effect on the receiving stream; or can otherwise endanger life, limb, public property, or constitute a nuisance, unless allowed under special agreement by the director (except that no special waiver shall be given from categorical pretreatment standards).

25. Any other substance which, in the reasonable opinion of the director, may be harmful to the structure, equipment, personnel, process, or operation of the POTW.

26. Antifreeze, glycol or a coolant solution as used in a vehicle or motorized equipment, unless authorized by the director.

27. An enzyme, chemical, or other agent that allows fat, oil, grease, or a solid to pass through a pretreatment facility.

28. Site remediation or construction wastewater, except as may be approved in writing by the director when the discharge will not cause pass through or interference with the POTW.

29. Wastewater that contains, or has contained, glutaraldehyde or ortho-phthalaldehyde unless it has been completely deactivated, has a pH of between 6.0 and 11.5 standard units, and does not contain any drain-clogging solids. Documentation of the quantity in gallons, pH, date and time of discharge and the initials of the technician performing the neutralization must be recorded and made available for inspection upon request.

1. The party responsible for the prohibited discharge of wastewater or pollutants to the POTW or the environment shall be responsible for all cleanup, response or repair costs related to the discharge including, but not limited to, costs incurred by the city for identification, hazard assessment, and containment.

2. A party may be required to perform cleanup as a result of:

3. For the purposes of this section, reimbursement costs include those costs that are eligible, reasonable, necessary, and allocable to the incident, including, but not limited to, the following: