K145 RCRA waste code Sludge from collecting mothball-type naphthalene at coke plants.

Free, no account
Based on 40 CFR 261.32 and EPA hazardous-waste rules
Nothing is stored

K-listed waste
Naphthalene recovery residue from coke by-products

Industry: Coking.

Toxic K-listed waste from coking. Residues from naphthalene collection & recovery operations on coke by-products.

Is K145 hazardous waste?

Yes. K145 is a nonacute K-listed hazardous waste when the source process and waste stream match. Its federal hazard code is (T), for toxicity.

K145 is listed by source, so how and where the waste arose decides it, not a concentration test alone. A test may add a characteristic code but doesn't remove the listing. On a required hazardous waste manifest, put K145 in Item 13. See VSQG exemptions and empty-container rules.

What does K145 cover?

Residue from naphthalene collection and recovery in recovering coke by-products from coal. The 261.4(a)(10) exclusion needs the residue recycled to coke ovens or tar recovery, or mixed with coal tar, with no land disposal before recycling.

Hazard code: (T), toxicity
Industry: Coking
Rule: 40 CFR 261.32

Is coke naphthalene-recovery residue K145 or another code?

Code	When it fits
K145	It is residue from naphthalene collection and recovery in recovering coke by-products.
K144	It is wastewater sump residue from light oil refining, including intercepting or contamination sump sludge from recovering coke by-products.
K143	It is light-oil recovery residue from coke by-products, including still, decanter or wash-oil-unit residue.

The industry, production step and waste form tell these K listings apart, not chemical content. The rows show nearby listed streams, not every code that can apply. Add any characteristic or other listing that also fits, as one waste can carry more than 1 federal code.

Which wastes take K145?

Waste	When it’s K145
Coke naphthalene recovery residue	It is residue from naphthalene collection and recovery in coke by-product recovery.

Which codes sit beside K145?

Code	What it is
K136	Bottom purification residue from making ethylene dibromide
K141	Process residue from recovering coal tar
K142	Tar-tank residue from making coke or recovering coke by-products
K147	Tar-tank residue from refining coal tar
K148	Distillation residue from coal tar
K149	Bottom distillation residue from chlorinated toluenes or benzoyl chlorides
K150	Recovery residue from chlorinated toluene or benzoyl chloride production
K151	Wastewater sludge from chlorinated toluene or benzoyl chloride production