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RCRA waste code finder

U248 RCRA waste code Rat poison at 0.3% or less, thrown away unused.

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U248, Warfarin and salts — an anticoagulant medicine and rodenticide.

  • U-listed waste

    Warfarin and salts — an anticoagulant medicine and rodenticide

Unused product at concentrations of 0.3% or less.

Listed withU-listed waste

Toxic U-listed hazardous waste for unused warfarin & its salts at 0.3% or less, used as a rodenticide.

Is U248 hazardous waste?

Yes, when the listing applies. U248 is the U-listed code for unused warfarin and salts thrown away, including off-specification product and qualifying residues. It is nonacute, not a P-listed acute waste. It depends on the product and how it is discarded, not on a TCLP result.

On a required hazardous waste manifest, put U248 in Item 13. Read the VSQG exemptions and empty-container rules and pharmaceutical containers too.

What does U248 cover?

This covers unused warfarin and salts thrown away at 0.3% or less. The product must be pure or technical grade, or have the chemical as its only active ingredient. Off-specification batches and qualifying container or spill cleanup residues are included. The 0.3% line splits the paired P and U listings.

CAS
81-81-2
Table entries
2H-1-Benzopyran-2-one, 4-hydroxy-3-(3-oxo-1-phenyl-butyl)-, & salts, when present at concentrations of 0.3% or less; Warfarin, & salts, when present at concentrations of 0.3% or less
Hazard codes in the record
T (toxic)
CAS qualification
The CAS shown is for the parent compound. It doesn't cover every salt or derivative.

Is warfarin and salts waste always U248?

CodeWhen it fits
U248Unused product thrown away at 0.3% or less, with the chemical pure, technical grade or the only active ingredient.
P001Unused product above 0.3%, with the listed chemical pure, technical grade or the only active ingredient.
Characteristic waste (D001–D043)A used chemical or a different formulation has a hazardous characteristic. Assess any process listings too.

Both rows can apply to one waste, because a listed unused product can also have a characteristic. The chemical merely turning up in a manufacturing waste doesn't make the waste U248. Match the waste’s origin, formulation and use history. Mixing or treating listed waste doesn't generally remove the listing. That takes an exclusion, an exception or an approved delisting. A salt can carry a different CAS from the parent compound, so go by the listed chemical name.

Which codes sit beside U248?

CodeWhat it is
U243Hexachloropropene
U244Thiram — a dithiocarbamate fungicide
U246Cyanogen bromide (CN)Br
U247Methoxychlor — an insecticide
U249Zinc phosphide Zn3 P2
U271Benomyl — a fungicide
U278Bendiocarb — a carbamate insecticide
U279Carbaryl — a carbamate insecticide

Sources