Toxic waste disposal
Toxic is the word people reach for when a waste seems dangerous. In the rules it means something narrower and much more testable, and knowing which of the two you mean changes what has to be done with the material.
Toxic is a test result, not an adjective
The toxicity characteristic covers about forty constituents — eight metals, several pesticides and a list of organics — each with its own regulatory limit. A waste has the characteristic if a leaching procedure, which simulates what would happen to the material in a landfill, produces an extract in which one of those constituents exceeds its limit. That is the whole test. A waste can be extremely hazardous to handle and not carry a toxicity code, because the constituent is not on the list. A waste can look inert and carry one, because lead or cadmium leaches out of it. The consequence is that you cannot reason your way to this classification from a safety data sheet: it is established by sampling and analysis, and where the result is close to a limit the sampling plan matters as much as the laboratory.
What goes this way
The streams toxic waste disposal handles, and what each one is under the rules — with acceptance decided by a profile rather than by a name on a drum.
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D004 - D011
Metal-bearing wastes
Arsenic, barium, cadmium, chromium, lead, mercury, selenium and silver. The commonest toxicity codes in industry.
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D012 - D017
Pesticide and herbicide residues
Obsolete stock, container residues and contaminated media from agricultural, municipal and grounds operations.
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D018 - D043
Regulated organics
Benzene, chlorinated solvents and others, where the leaching extract exceeds the limit.
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By analysis
Contaminated soil and debris
Media from a spill or an excavation, where the determination is made on the material as it will be shipped.
When this is not the right route
The cases where toxic waste disposal is not what you want, and what to use instead.
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The waste is hazardous because of the process it came from rather than a test result
Go to RCRA Hazardous Waste Disposal -
It is radioactive, or radioactive as well as chemically hazardous
Go to Radioactive Waste Disposal
What you get back
The records toxic waste disposal produces, and what each one is evidence of — because the liability for a waste stays with the generator from the moment it is created until it is destroyed.
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The analytical package
The leaching results and the laboratory report behind them, which is what the classification actually rests on. Where a result sits close to a regulatory limit, the sampling plan is part of the record rather than a detail.
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Sampling documentation
How the sample was taken and why it represents the material shipped — the part that makes a single number defensible for a heap of soil.
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Manifest and treatment record
Including, where the waste was stabilized to meet a treatment standard, evidence that it was.
Who sends us this
The facility types that usually need toxic waste disposal, each with its own page on what that process produces and under which codes.
Before you ask for a price
What generators ask about toxic waste disposal, answered from the rules rather than from marketing copy.
Not necessarily. The safety data sheet describes hazards to people handling the product; the toxicity characteristic is a leaching result against a specific list of constituents. The two answer different questions and often disagree in both directions.
Treatment that genuinely reduces leachability can remove a characteristic, and that is exactly what stabilization is for before land disposal. Diluting to get under a limit is a different thing and is restricted.
Enough that the result represents the waste you are actually shipping. For a homogeneous stream that is little; for excavated soil or a mixed load it is a sampling plan, because a single sample from a heap is not a characterization.
Describe the stream. We will tell you the route.
A description of the process and a rough quantity is enough to start. A Certified Hazardous Materials Manager reads every request, and sometimes the answer is a different service than the one you asked about.