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Ontario waste class D016 Common broadleaf weedkiller sprayed on lawns & crops.

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  • Based on Ontario Regulation 347, Schedule 4
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D016, 2,4-D (also called (2,4-dichlorophenoxy)acetic acid).

  • Ontario leachate quality criteria

    2,4-D (also called (2,4-dichlorophenoxy)acetic acid)

Ontario TCLP limit: 10 mg/L for 2,4-D (also called (2,4-dichlorophenoxy)acetic acid).

2,4-D, a common phenoxy weedkiller sprayed on lawns, crops & roadsides. Ontario's TCLP leachate limit is 10 mg/L.

Is Ontario D016 hazardous waste?

Yes, when the leachate limit is met. The Ontario leachate-toxicity limit for 2,4-D (also called (2,4-dichlorophenoxy)acetic acid) is 10 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 D016 cover?

This number is for 2,4-D (also called (2,4-dichlorophenoxy)acetic acid) in the extract from the Toxicity Characteristic Leaching Procedure. The classification limit is 10 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
≥ 10 mg/L
CAS
94-75-7

Does 2,4-D, also called (2,4-dichlorophenoxy)acetic acid, make waste Ontario D016?

CodeWhen it fits
D016The TCLP extract holds 10 mg/L or more.
This constituent criterion not metThe TCLP extract is below 10 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 D016?

WasteWhen it’s D016
Contaminated soilWhen the measured extract reaches the limit for this constituent.

Which codes sit beside Ontario D016?

CodeWhat it is
D012Endrin
D013Lindane
D014Methoxychlor
D015Toxaphene
D0172,4,5-TP (Silvex weedkiller)
D018Benzene
D019Carbon tetrachloride (Tetrachloromethane)
D020Chlordane