Prohibited Discharge Standards

A. General prohibitions. No user shall introduce or cause to be introduced into the POTW any pollutant or wastewater that causes pass through or interference. These general prohibitions apply to all users of the POW whether or not they are subject to categorical pretreatment standards or any other governmental pretreatment standards or requirements. B. Specific prohibitions. No user shall introduce or cause to be introduced into the POTW the following pollutants, substances, or wastewater: 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 one hundred forty degrees Fahrenheit (sixty degrees Celsius) using the test methods specified in 40 CFR 261.21; 2. Wastewater or any liquids having a pH less than 6.0 or more than 9.0, or otherwise causing corrosive structural damage to the POTW or equipment; 3. Solid or viscous substances in amounts that will cause obstruction of the flow in the POTW resulting in interference, but in no case solids greater than one half inch in any dimension that will not be carried freely under the flow conditions in the sewer; 4. Pollutants, including oxygen-demanding pollutants (BOD, etc.), released in a discharge at a flow rate and/or pollutant concentration that, either singly or by interaction with other pollutants, will cause interference with the POTW; 5. Wastewater having a temperature that will inhibit biological activity in the wastewater system resulting in interference, and wastewater that, causes the temperature at the introduction into the wastewater reclamation facility to exceed one hundred four degrees Fahrenheit (forty degrees Celsius); 6. Petroleum oil, nonbiodegradable cutting oil or products of mineral oil origin, in amounts that will cause interference or pass through; 7. 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; 8. Trucked or hauled pollutants, except at discharge points designated by the director; 9. 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, or to prevent entry into the wastewater collection system for maintenance or repair; 10. Wastewater that imparts color that cannot be removed by the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions, that impart color to the wastewater reclamation facility's effluent, thereby violating the County's UIC permit; 11. Wastewater containing any radioactive wastes or isotopes except in compliance with applicable state or federal regulations; 12. Stormwater, surface water, groundwater, artisan well water, roof runoff, subsurface drainage, swimming pool drainage, filter backwash from an uncontaminated cooling system, swimming pool, decorative fountain or pond, vehicle washing drainage, condensate, deionized water, noncontact cooling water, and unpolluted wastewater; 13. Sludges, screenings, or other residues from the pretreatment of industrial or commercial wastes or from industrial or commercial processes; 14. Medical waste, except as specifically authorized by the director in a wastewater discharge permit; 15. Wastewater causing, alone or in conjunction with other sources, the wastewater reclamation facility's effluent to fail a toxicity test; 16. Detergents, surface-active agents, or other substances that may cause excessive foaming, interference or pass through at the POTW; 17. Fats, oils, or grease of animal or vegetable origin in concentrations in excess of 100 mg/L, or less if it is found that it is causing interference or pass through or will cause blockages in the wastewater collection system; 18. Wastewater causing hazardous conditions in the meter at the point of collection system as defined by the formula: C LVL = (C VAP /H) Where C LVL = Discharge screening level, mg/L C VAP = ACGIH TLV-TWA, mg/m 3 H= Henry's law constant (mg/m 3 ) / (mg/L) Pollutants, substances, or wastewater prohibited by this section shall not be processed or stored in such a manner that they could be discharged to the POTW; 19. Materials that exert or cause: a. Unusual concentrations of inert suspended solids, including, but not limited to, fullers earth, lime slurries and lime residues; or of dissolved solids, including, but not limited to, sodium chloride and sodium sulfate, b. Excessive discoloration, including but not limited to, dye wastes and vegetable tanning solutions, c. BOD 5 , chemical oxygen demand, or chlorine requirements in such quantities as to constitute a significant load on the wastewater system, or d. Unusual volume of flow or concentration of waste constituting slugs as defined in this article; 20. Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the director in compliance with applicable state or federal regulations; 21. Any water added for the purpose of diluting wastes that would otherwise exceed the concentration limitations established by the director in compliance with applicable state or federal regulations unless dilution is the method described in the material safety data sheet protocols, such as acid; 22. Waters or wastes containing substances that are not amenable to treatment or reduction by the wastewater treatment processes employed, or are amenable to treatment only to such degree that the wastewater reclamation facility effluent can not meet the requirements of governmental agencies, having jurisdiction over effluent discharge; 23. Any nutrients, specifically but not limited to, nitrogen and phosphorous forms, at concentrations that are amenable to treatment only to such a degree that the wastewater reclamation facility effluent cannot meet the requirements of other agencies having jurisdiction over discharge, including but not limited to, UIC programs, or NPDES permits; 24. Any waters or wastes containing phenols or other taste-producing or odor-producing substances, in such concentrations exceeding limits that may be established by the director, after treatment of the composite wastewater, to meet the requirements of governmental agencies having jurisdiction over such discharge; 25. Waters or wastes containing substances that may cause obstruction of the flow to the POTW or cause interference with the wastewater treatment processes employed or other interference with the proper operation of the wastewater system including, but not limited to, animal viscera or tissues, paunch manure, bones, hair, lint, hides or fleshings, entrails, whole blood, feathers, ashes, cinders, sand, spent lime, stone or marble dusts, metal, glass, straw, shavings, grass clippings, rags, spent grains, spent hops, waste paper, paper dishes, cups, milk containers, unground garbage, wood, plastics, gas, tar asphalt residues, residues from refining or processing of fuel or lubricating oil, mud, or glass grinding or polishing wastes; and 26. Any substance that may cause the POTW's effluent or treatment residues, sludges, or scums to be unsuitable for reclamation and reuse, or to interfere with the reclamation process. C. Wastewater debris from any entity that performs cleaning, rodding, jetting, or any other form or maintenance of a public or private wastewater line (excluding individual laterals serving single-family dwellings) that discharges into the public wastewater system will be required to remove all debris from the last manhole on the property. If no manhole is located on the property, then coordination should be made with the wastewater reclamation division to obtain access to a manhole in the wastewater system. Such captured debris from line cleaning shall be disposed at the sanitary landfill. (Ord. 2760 § 4 (part), 1999)