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Ontario waste class E116 Corn & soybean weedkiller, limited to 5 mg/L.

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  • Based on Ontario Regulation 347, Schedule 4
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E116, Metolachlor.

  • Ontario leachate quality criteria

    Metolachlor

Ontario TCLP limit: 5 mg/L for Metolachlor.

Ontario leachate limit of 5 mg/L for metolachlor, a herbicide used on corn & soybeans, in its leachate quality limits.

Is Ontario E116 hazardous waste?

Yes, when the leachate limit is met. Ontario sets the leachate limit for metolachlor at 5 mg/L in the TCLP extract. A result at 5 mg/L meets it, subject to the regulation’s exclusions. A concentration in the original bulk waste is a different measurement, so it can't be compared with this limit.

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

What does Ontario E116 cover?

This number is a limit on metolachlor in the extract from the Toxicity Characteristic Leaching Procedure. The limit is 5 mg/L. It covers leachate toxicity, whatever the source industry, container or physical form. Ontario sets treatment requirements for land disposal separately.

Schedule
Schedule 4
Purpose
Leachate-toxic classification; Schedule 5 separately sets treatment standards
TCLP classification limit
≥ 5 mg/L
CAS
51218-45-2

Is metolachlor always Ontario E116?

CodeWhen it fits
E116The TCLP extract holds 5 mg/L or more.
This constituent criterion not metThe TCLP extract is below 5 mg/L.

A result below the limit clears this constituent only. Other constituents, characteristic hazards and listed-waste rules still need assessing. Test against the classification limit first, then the land-disposal treatment standard.

Which wastes take Ontario E116?

WasteWhen it’s E116
Contaminated soilWhen the measured extract concentration meets the individual limit.

Which codes sit beside Ontario E116?

CodeWhat it is
E112Diquat
E113Diuron
E114Glyphosate
E115Malathion
E117Metribuzin
E118Nitrate + Nitrite (as Nitrogen)
E119Nitrilotriacetic acid (NTA)
E120Paraquat