No discharger shall contribute or cause to be discharged, directly or indirectly, any of the following described substances into the City wastewater collection and treatment system:
(a) Any pollutants which by reason of their nature or quantity are, or may be, sufficient either alone or by interaction to create a fire or explosion hazard in the wastewater collection system and/or treatment plant including but not limited to, waste streams with a closed cup flashpoint of less than 140 degrees Fahrenheit or 60 degrees Centigrade using the test method specified in 40 CFR 261.21.
(b) Solid or viscous substances which will or may cause obstruction to the flow in a sewer or other interference with the operation of the wastewater system.
(c) Any wastewater having a pH less than 6.0 S.U. or higher than 10 S.U., or having any other corrosive property capable of causing damage or hazard to structures, equipment or personnel of the system.
(d) Any wastewater containing toxic pollutants in sufficient quantity, either singly or by interaction to injure or interfere with any wastewater treatment process, constitute a hazard to humans or animals, or to exceed the limitation set forth in any applicable Categorical Pretreatment Standards. A toxic pollutant shall include but not be limited to any pollutant identified in the Toxic Pollutant List set forth in Appendix A hereto.
(e) Any noxious or malodorous liquids, gases, or solids which either singly or by interaction are capable of creating a public nuisance or hazard to life or are sufficient to prevent entry into the sewers for their maintenance and repair.
(f) Any substance which may cause the City wastewater treatment plant effluent or treatment residues, sludges, or scums to be unsuitable for reclamation and reuse or to interfere with the reclamation process.
(g) Any substance which will cause the City's wastewater treatment plant to violate its National Pollutant Discharge Elimination System (NPDES) and/or other Disposal System Permits.
(h) Any substance with objectionable color not removed in the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions.
(i) Any wastewater having a temperature which will inhibit biological activity in the City's wastewater treatment plant resulting in interference; but in no case, wastewater with a temperature at the introduction into the City's wastewater treatment plant which exceeds 40 degrees Celsius or 104 degrees Fahrenheit.
(j) Any slugload, which means any pollutant, including oxygen demanding pollutants released in a single extraordinary discharge episode of such volume or strength as to cause interference to the City's wastewater treatment plant.
(k) Any wastewater containing any radioactive wastes or isotopes of such half life or concentration as exceed limits established by the City in compliance with applicable State or Federal regulations.
(l) Any wastewater which causes a hazard to human life or creates a public nuisance.
(m) Any water or wastes containing free oils, emulsified oils, and grease exceeding an average of 100 parts per million of either soluble matter.
(n) Any petroleum oil; nonbiodegradable cutting oil or products of mineral oil origin discharged in amounts which cause pass through or interference at the wastewater treatment plant.
(o) Pollutants which result in the presence of toxic gases, vapors, or fumes within the wastewater collection system and/or treatment plant in a quantity that may cause acute worker health and safety problems.
(p) Any garbage that has not been properly shredded.
(q) Any waters or wastes containing suspended solids of such character and quantity that unusual attention or expense is required to handle such materials at the wastewater treatment plant, or having a chlorine demand greater than 30 parts per million.
(r) Under no conditions will the discharge of concentrated plating baths or acid pickling liquor whether neutralized or not be permitted to the sanitary sewer system.
(s) Pollutants, including oxygen-demanding pollutants (BOD, etc.), released in a discharge at a flow rate and/or pollutant concentration which, either singly, or by interaction with other pollutants, will cause interference with the POTW.
(t) Trucked or hauled pollutants, except at discharge points designated by the Plant Manager in accordance with Section 925.26.
(u) Storm water, surface water, ground water, artesian well water, roof runoff, subsurface drainage, swimming pool drainage, condensate, deionized water, noncontact cooling water, and unpolluted wastewater, unless specifically authorized by the Plant Manager.
(v) Sludges, screenings, or other residues from the pretreatment of industrial wastes.
(w) Medical wastes, except as specifically authorized by the Plant Manager in an individual wastewater discharge permit.
(x) Wastewater causing, alone or in conjunction with other sources, the treatment plant's effluent to fail toxicity test
(y) Detergents, surface-active agents, or other substances which might cause excessive foaming in the POTW
(z) Wastewater causing two successive readings on an explosion hazard meter at the point of discharge into the POTW, or at any point in the system, be more than five percent (5%) of the Lower Explosive Limit (LEL) of the meter nor shall any single reading be more than ten percent (10%) of the Lower Explosive Limit (LEL) of the meter.
(Ord. 117-2015. Passed 9-8-15.)