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Ontario waste class 134 Water carrying sulphide salts, such as spent sour liquors.

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  • Based on Ontario Regulation 347 and registration guidance
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134, Sulphide-bearing waste.

  • Ontario inorganic wastes

    Sulphide-bearing waste

Ontario group: aqueous salts.

Sulphide-bearing waste, aqueous salt solutions that contain sulphides, in Ontario's inorganic waste group of aqueous salts.

Is Ontario 134 hazardous waste?

Not from the code alone. Ontario 134 describes the waste stream, not whether it is hazardous. Ontario decides that from the hazardous characterization or liquid-industrial status, and from the exclusions. The 3-digit class needs a primary characterization letter to form the waste number.

For subject waste, the generator enters the class-and-letter waste number in the waste details of the Ontario hazardous waste manifest. Ontario’s exclusions and shipment rules also apply.

What does Ontario 134 cover?

Waste that carries sulphides. An example is water-based condensate from petroleum refining.

Is sulphide waste Ontario 134 or another class?

CodeWhen it fits
134The stream is sulphide-bearing waste.
135The waste contains other anions rather than the sulphide stream.

When several characterizations apply, the registration flowchart picks the primary one. A 3-digit class doesn't replace the flowchart or the exclusions.

Which wastes take Ontario 134?

WasteWhen it’s 134
Water-based condensate from petroleum refiningSulphide content

Which codes sit beside Ontario 134?

CodeWhat it is
122Other cyanide-free alkaline waste
123Alkaline phosphate waste
131Neutralized heavy-metal waste
132Other neutralized metal waste
133Brine and chlor-alkali residues
141Inorganic pigment production waste
142Primary lead/zinc/copper smelting waste
143Steelmaking residue