Ontario waste class 144 Wet sludge from leather tanning plants.
- Free, no account
- Based on Ontario Regulation 347 and registration guidance
- Nothing is stored
Find a Canadian waste code
144, Liquid tannery sludge.
Ontario inorganic wastes
Liquid tannery sludge
Ontario group: miscellaneous inorganic wastes and mixed wastes.
ComplyOnSiteIs Ontario 144 hazardous waste?
Not from the code alone. Ontario 144 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 144 cover?
Liquid sludge from tanneries. Examples are mixtures containing waste lime, chrome-tanning liquor, and liquids or sludge from dehairing.
Is tannery sludge Ontario 144 or another class?
| Code | When it fits |
|---|---|
| 144 | The stream is liquid sludge from tanneries. |
| 311 | The tannery waste is the organic residue described by that class. |
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 144?
| Waste | When it’s 144 |
|---|---|
| Discarded mixtures containing lime | Liquid form and tannery origin |
| Spent chromium tanning liquor | Liquid form and tannery origin |
| Used dehairing liquid and its sludge | Liquid form and tannery origin |