(a) 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 or to the operation of the POTW. Wastewater discharges are prohibited 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.

(b) Any solid or viscous substances which may cause obstruction to the flow in a sewer or other interferences with the operation of the wastewater treatment system facilities, such as, but not limited to: grease, garbage with particles greater than one-half inch in any dimension, animal guts or tissues, paunch manure, bones, hair, 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, wood, plastics, gas, tar asphalt residues, residues from refining or processing of fuel or lubricating oil, mud, or glass grinding or polishing wastes.

(c) Any wastewater having a pH less than six or greater than 10, or wastewater having any corrosive property capable of causing damage or hazard to structures, equipment, and/or personnel of the City.

(d) Any wastewater containing toxic pollutants in sufficient quantity, either singly or by interaction, to injure or interfere with any wastewater treatment system process, create a toxic effect on the receiving waters of the POTW, constitute a hazard to humans or animals, or to exceed the limitation set forth in categorical pretreatment standards.

(e) Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health or safety problems.

(f) Any substance which 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. 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, any criteria, guidelines, or regulations affecting sludge use or disposal developed pursuant to the Solid Waste Disposal Act, the Clean Air Act, the Toxic Substance Control Act, or State standards applicable to the sludge management method being used.

(g) Any substance which will cause the POTW to violate its 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 POTW treatment plant resulting in interference but, in no case, wastewater which causes the temperature at the introduction into the treatment plant to exceed 40 degrees Celsius (104 degrees Fahrenheit). If, in the opinion of the City, lower temperatures of such wastes could harm either the sewers, wastewater treatment processes, or equipment; have an adverse effect on the receiving streams; or otherwise endanger life, health, or property or constitute a nuisance, the City may prohibit such discharges.

(j) Any unpolluted water including, but not limited to, storm water, surface water, groundwater, roof runoff, parking lot and subsurface drainage, noncontact cooling water, and unpolluted wastewater, unless specifically authorized by the City Engineer.

(k) Any wastewater containing any radioactive wastes or isotopes of such half life or concentration as exceeds limits established by the City of Albany Public Works Director in compliance with applicable State or Federal regulations.

(l) Any wastewater containing pollutants in sufficient quantity (flow or concentration), either singly or by interaction with other pollutants, to pass through or interfere with the POTW, any wastewater treatment or sludge process, or constitute a hazard to humans or animals.

(m) Wastewater containing substances not amenable to treatment or reduction by the wastewater treatment system processes employed, or are amenable to treatment only to such degree that the wastewater treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters.

(n) Fats, wax, grease, or oils whether emulsified or not, containing substances which may solidify or become viscous at temperatures between 32 degrees Fahrenheit and 150 degrees Fahrenheit (zero degrees Celsius and 65 degrees Celsius).

(o) Any sludges, screenings, or other residues from the pretreatment of industrial waste.

(p) Any hauled waste or septage, except at discharge points designated by the City and authorized in writing by the City Engineer.

(q) Any wastewater causing the treatment plant effluent to demonstrate toxicity to test species during a biomonitoring evaluation.

(r) Any wastewater, residual solvents, or solvent-containing waste from dry-cleaning machines, as well as solvent-containing wastewater from any auxiliary operation at dry-cleaning facilities.

(a) State Requirements. State requirements and limitations on users of the POTW shall be met by all users that are subject to such standards in any instance in which they are more stringent than Federal requirements and limitations, or those in this chapter or any other applicable ordinance.

(b) Right of Revision. The City reserves the right to amend this chapter to provide for more stringent limitations or requirements on discharges to the POTW where deemed necessary to comply with the objectives set forth in MMC 10.10.010.

(c) Dilution. No user shall increase the use of potable or process water in any way for the purpose of diluting a discharge as a partial or complete substitute for adequate treatment to achieve compliance with the applicable standards set forth in this chapter. The City may impose mass limitations on users which are using dilutions to meet the applicable pretreatment standards or requirements of this chapter.

(d) Specific Pollutant Limitations. No nondomestic user shall discharge wastewater containing restricted substances into the publicly owned treatment works in excess of limitations specified in its wastewater discharge permit or published by the City of Albany Public Works Director. The Director shall publish and revise from time to time standards for specific restricted substances. These standards shall be developed in accordance with 40 CFR 403.5 and shall implement the objectives of this chapter. Standards published in accordance with this section will be deemed pretreatment standards for the purposes of Section 307(d) of the Act. (Ord. 156, passed 8-13-2019)