Prepared by:
Ontario Ministry of the Environment
Environmental Approval Access and Service Intergration Branch

Last Revision Date: February 2013

Inorganic Wastes - Acid Solutions
Acid Solutions Examples
111 - Spent pickle liquor Acid solutions of sulphuric and hydrochloric acids containing ferrous salts from steel pickling.
112 - Acid solutions, sludges and residues containing heavy metals Solutions of sulphuric, hydrochloric and nitric acids containing copper, nickel, chromium, zinc, cadmium, tin, lead, or other heavy metals; chromic acid waste; acidic emission control sludges from secondary lead smelting.
113 - Acid solutions, sludges and residues containing other metals and non-metals Solutions of sulphuric, hydrochloric, hydrofluoric and nitric acids containing sodium, potassium, calcium, magnesium or aluminum; equipment cleaning acids; cation regenerant; reactor acid washes; catalyst acid and acid washes.
114 - Other inorganic acid wastes Off-specification acids; by-product hydrochloric acid; dilute acid solutions; acid test residues.
Inorganic Wastes - Alkaline Solutions
Alkaline Solutions Examples
121 - Alkaline solutions, sludges and residues containing heavy metals Metal finishing wastes; plating baths; spent solutions containing metals such as copper, zinc, tin, cadmium; case hardening sludges; spent cyanide destruction residues; dewatered solids from metal and cyanide finishing wastes and cyanide destruction.
122 - Alkaline solutions, sludges and residues containing other metals and non-metals, not containing cyanides Alkaline solutions from aluminum surface coating and etching; alkali cleaner wastes; waste lime sludges and slurries; anion regenerants.
123 - Alkaline phosphates Bonderizing wastes; zinc phosphates; ferrous phosphates; phosphate cleaners.
Inorganic Wastes - Aqueous Salts
Aqueous Salts Examples
131 - Neutralized solutions, sludges and residues containing heavy metals Metal finishing waste treatment sludges containing copper, nickel, chromium, zinc or cadmium; neutral salt bath sludges and washes; lime sludge from metal finishing waste treatment; dewatered solids from these processes.
132 - Neutralized solutions, sludges and residues containing other metals Aluminum surface coating treatment sludges; alum and gypsum sludges.
133 - Brines, chlor-alkali sludges and residues Waste brines from chlor-alkali plants; neutralized hydrochloric acid; brine treatment sludges; dewatered solids from brine treatment.
134 - Wastes containing sulphides Petroleum aqueous refinery condensates.
135 - Wastes containing other reactive anions Wastes containing chlorates; hypochlorite; bromate or thiosulphate.
Inorganic Wastes - Miscellaneous Inorganic Wastes and Mixed Wastes
Miscellaneous Inorganic Wastes and Mixed Wastes Examples
141 - Inorganic wastes from pigment manufacturing Wastewaters and sludges from the production of chrome yellow, molybdate orange, zinc yellow, chrome green and iron pigments; dewatered solids from these sources.
142 - Primary lead, zinc and copper smelting wastes Slurries, sludges and surface impoundment solids; treatment plant sludges; anode slimes and leachate residues; dewatered solids from these sources.
143 - Residues from steel making Emission control sludges and dusts; precipitator residues from steel plants; dewatered solids from these sources.
144 - Liquid tannery waste sludges Lime waste mixtures; chrome tan liquors; dehairing solutions and sludges.
145 - Wastes from the use of paints, pigments and coatings Paint spray booth sludges and wastes; paper coating wastes; ink sludges; paint sludges.
146 - Other specified inorganic sludges, slurries or solids Flue gas scrubber wastes; wet fly ash; dust collector wastes; metal dust and abrasives wastes; foundry sands; mud sediment and water; tank bottoms from waste storage tanks that contained mixed inorganic wastes; heavy sludges from waste screening /filtration at transfer/ processing sites not otherwise specified in this table.
147 - Chemical fertilizer wastes Solutions, sludges and residues containing ammonia, urea, nitrates and phosphates from nitrogen fertilizer plants.
148 - Miscellaneous waste inorganic chemicals Waste inorganic chemicals including laboratory, surplus or off-specification chemicals, that are not otherwise specified in this table.
149 - Landfill leachate Surface run-off and leachate collected from landfill sites.
150 - Inert inorganic wastes Sand and water from catch basins at car washes; slurries from the polishing and cutting of marble.
Organic Wastes - Non-halogenated Spent Solvents
Non-halogenated Spent Solvents Examples
211 - Aromatic solvents and residues Benzene, toluene, xylene solvents and residues.
212 - Alphatic solvents and residues Acetone, methylethylketone and residues, alcohols, cyclohexane and residues.
213 - Petroleum distillates Varsol, white spirits and petroleum distillates, thinners.
Organic Wastes - Fuels
Fuels Examples
221 - Light fuels Gasoline, kerosene, diesel, tank drainings /washings/bottoms, spill clean-up residues
222 - Heavy fuels Bunker, asphalts, tank draining/washings/bottoms, spill clean-up residues.
Organic Wastes - Resins and Plastics
Resins and Plastics Examples
231 - Latex wastes Wastes latexes, latex crumb and residues.
232 - Polymeric resins Polyester, epoxy, urethane, phenolic resins, intermediates and solvent mixtures.
233 - Other polymeric wastes Off-specification materials, discarded materials from reactors.
Organic Wastes - Halogenated Organic Wastes
Halogenated Organic Wastes Examples
241 - Halogenated solvents and residues Spent halogenated solvents and residues such as perchloroethylene, trichloroethylene and carbon tetrachloride (dry cleaning solvents); halogenated still bottoms; residues and catalysts from halogenated hydrocarbon manufacturing or recycling processes.
242 - Halogenated pesticides and herbicides 2,4-D, 2,4,5-T wastes, chlordane, mirex, silvex, pesticide solutions and residues.
243 - Polychlorinated biphenyls (PCB) Askarel liquids such as Aroclor, Pydraul, Pyranol, Therminolds, Inerteen, and other PCB contaminated materials.
Organic Wastes - Oily Wastes
Oily Wastes Examples
251 - Waste oils/sludges (petroleum based) Oil/water separator sludge; dissolved air flotation skimming; heavy oil tank drainage; slop oil and emulsions.
252 - Waste crankcase oils and lubricants Collected service station waste oils; industrial lubricants; bulk waste oils.
253 - Emulsified oils Soluble oils; waste cutting oils; machine oils.
254 - Oily water/waste oil from waste transfer/processing sites Waste oil and oily water limited to classes 251, 252 and 253 that have been bulked/blended/processed at a waste transfer/processing site.
Organic Wastes - Miscellaneous Organic Wastes and Mixed Wastes
Miscellaneous Organic Wastes and Mixed Wastes Examples
261 - Pharmaceuticals Pharmaceutical and veterinary pharmaceutical wastes other than biologicals and vaccines, solid residues and liquids from veterinary arsenical compounds.
262 - Detergents and soaps Laundry wastes.
263 - Miscellaneous waste Organic chemical Waste organic chemicals including laboratory surplus or off-specification chemicals that are not otherwise specified in this table.
264 - Photoprocessing wastes Photochemical solutions, washes and sludges.
265 - Graphic arts wastes Adhesives, glues, miscellaneous washes; etch solutions.
266 - Phenolic waste streams Cresylic acid; caustic phenolates; phenolic oils; creosote.
267 - Organic acids Carboxylic or fatty acids; formic, acetic, propionic acid wastes; sulphamic and other organic acids that may be amenable to incineration.
268 - Amines Waste ethanolamines, urea; tolidene, Flexzone waste, Monex waste.
269 - Organic non-halogenated pesticide and herbicide wastes Organophosphorus chemical wastes; arsenicals; wastes from MSMA and cacodylic acid
270 - Other specified organic sludges, slurries and solids Tank bottoms from mixed organic waste bulking tanks at waste transfer sites, mixed sludges from waste screening filtration at waste transfer processing sites not otherwise specified in this table.
Organic Wastes - Processed Organic Wastes from Transfer Stations
Processed Organic Wastes from Transfer Stations Examples
281 - Non-halogenated rich organics Blended/bulked non-halogenated solvents, oils and other rich organics prepared at transfer/processing sites for incineration.
282 - Non-halogenated lean organics Blended/bulked aqueous wastes prepared at transfer/processing sites for incineration and contaminated with nonhalogenated solvents, non-halogenated oils and other non-halogenated organics.
Organic Wastes - Plant and Animal Wastes
Plant and Animal Wastes Examples
311 - Organic tannery wastes Fleshings; trimmings; vegetable tan liquors; Bate solutions.
312 - Pathological Waste Human anatomical waste; infected animal carcasses; other non-anatomical waste infected with communicable diseases; biologicals and vaccines.
Other Wastes - Explosive Manufacturing Wastes
Explosive Manufacturing Wastes Examples
321 - Wastes from the manufacture of explosives and detonation products Wastewater treatment sludges; spent carbon; red/pink waters from TNT manufacturing; residues from lead base initiating compounds.
Other Wastes - Compressed Gases
Compressed Gases Examples
331 - Waste compressed gases, including cylinders Methane (natural gas); nitrous or nitric oxide; propane, butane.

PIBS 4188e01