Skip to content

D004 RCRA waste code Toxic metal waste that leaches 5 mg/L or more.

  • Free, no account
  • Based on 40 CFR 261.24
  • Nothing is stored

Find a federal hazardous waste code

D004, Arsenic.

  • Characteristic hazardous waste

    Arsenic

Arsenic at 5 mg/L or more in the TCLP extract.

Grey-green metal salts in a sack, drawn for RCRA waste code D004, arsenic. Toxic metal waste that leaches 5 mg/L or more.
Toxic characteristic waste. Waste with arsenic at 5 mg/L or more in the TCLP test. Common in treated wood & pesticide residues.

Is D004 hazardous waste?

Yes. Waste is D004 when the TCLP extract of a representative sample holds arsenic at or above 5 mg/L. That makes it toxic hazardous waste, whatever industry or process it came from.

Compare the arsenic in the TCLP extract with 5 mg/L. A total arsenic result is a different measure, so it can't be compared with this limit.

D004 is a nonacute characteristic. On a required hazardous waste manifest, put D004 in Item 13. See VSQG exemptions and empty-container rules.

What does D004 cover?

D004 applies when a representative sample gives a TCLP extract with arsenic at or above 5 mg/L. The limit is for the extract, not the waste’s total arsenic.

CAS
7440-38-2
Regulatory level
5 mg/L in TCLP extract
Hazard
T, toxic

Is arsenic waste always D004?

CodeWhen it fits
D004The TCLP extract of a representative sample holds arsenic at or above 5 mg/L.
D004–D043The arsenic result is below 5 mg/L, but another contaminant or characteristic can still apply.

Generators decide the codes from testing or knowledge of the waste, under 40 CFR 262.11. A result below 5 mg/L rules out D004 only. It doesn't make the waste nonhazardous.

Which wastes take D004?

WasteWhen it’s D004
Waste contaminated with toxic metalsIts arsenic leaches at the TCLP limit or above.
Arsenic-contaminated wasteIts arsenic leaches at the TCLP limit or above.
Contaminated soilIts arsenic leaches at the TCLP limit or above.
Treated wood wasteIts arsenic leaches at the TCLP limit or above.
Used oilIts arsenic leaches at the TCLP limit or above.
Waste batteriesIts arsenic leaches at the TCLP limit or above.
Waste pharmaceuticalsIts arsenic leaches at the TCLP limit or above.