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04 01 06 Sludges, in particular from on-site effluent treatment containing chromium

EWC / List of Waste code · Last checked 21 October 2026 · Applies across the UK (England, Wales, Scotland and Northern Ireland)

Not hazardous Absolute non-hazardous entry

Official description: “sludges, in particular from on-site effluent treatment containing chromium”

Where it sits: chapter 04 (wastes from the leather, fur and textile industries), section 04 01 (wastes from the leather and fur industry).

What the hazard status means

Waste that matches this description is not hazardous waste. Check that nothing hazardous has been mixed in: a load that contains hazardous waste needs a different code.

Using this code

Other codes in section 04 01

This page explains the code in plain English. It is not a classification of your waste. The official List of Waste and the classification guidance decide which code applies, and you are responsible for the code you use.

Official sources