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Ontario waste class D021 Chlorinated solvent used in pesticides & dyes.

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  • Based on Ontario Regulation 347, Schedule 4
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D021, Chlorobenzene (Monochlorobenzene).

  • Ontario leachate quality criteria

    Chlorobenzene (Monochlorobenzene)

Ontario TCLP limit: 8 mg/L for Chlorobenzene (Monochlorobenzene).

Chlorobenzene (monochlorobenzene) waste. Chlorinated solvent used in pesticide & dye making. Ontario TCLP limit 8 mg/L.

Is Ontario D021 hazardous waste?

Yes, when the leachate limit is met. The Ontario leachate-toxicity limit for chlorobenzene (Monochlorobenzene) is 8 mg/L in the TCLP extract. The limit is inclusive, so a result at the limit meets this constituent’s criterion, subject to the regulation’s exclusions. A concentration in the original bulk waste is a different measurement.

For a subject-waste shipment, the generator records the 3-digit class and primary characterization in the waste-number details of the Ontario hazardous waste manifest. This hazardous-waste number names the constituent for the regulatory assessment and doesn’t replace that class-and-letter waste number. Land-disposal treatment standards are assessed separately.

What does Ontario D021 cover?

This number is for chlorobenzene (Monochlorobenzene) in the extract from the Toxicity Characteristic Leaching Procedure. The classification limit is 8 mg/L. It isn’t tied to any source industry, container or physical form, and Ontario sets land-disposal treatment requirements separately.

Schedule
Schedule 4
Purpose
Leachate-toxic classification; Schedule 5 separately sets treatment standards
TCLP classification limit
≥ 8 mg/L
CAS
108-90-7

Does chlorobenzene make waste Ontario D021?

CodeWhen it fits
D021The TCLP extract holds 8 mg/L or more.
This constituent criterion not metThe TCLP extract is below 8 mg/L. Other hazardous criteria still need assessing.

A below-limit result for one constituent doesn’t clear other constituents, characteristic hazards or listed-waste rules. Apply the classification threshold first, then the separate land-disposal treatment standard.

Which wastes take Ontario D021?

WasteWhen it’s D021
Contaminated soilWhen the measured extract reaches the limit for this constituent.

Which codes sit beside Ontario D021?

CodeWhat it is
D0172,4,5-TP (Silvex weedkiller)
D018Benzene
D019Carbon tetrachloride (Tetrachloromethane)
D020Chlordane
D022Chloroform
D023o-Cresol
D024m-Cresol
D025p-Cresol