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19 02 06 Sludges from physico/chemical treatment other than those mentioned in 19 02 05

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

Not hazardous Mirror entry (non-hazardous side)

Official description: “sludges from physico/chemical treatment other than those mentioned in 19 02 05”

Where it sits: chapter 19 (wastes from waste management facilities, off-site waste water treatment plants and the preparation of water intended for human consumption and water for industrial use), section 19 02 (wastes from physico/chemical treatments of waste (including dechromatation, decyanidation, neutralisation)).

What the hazard status means

This is one half of a “mirror” pair. You can only use this non-hazardous code once you have assessed the waste and shown it does not contain hazardous substances above the thresholds and has no hazardous properties. If you are not sure, it must be treated as hazardous.

Its mirror entry

19 02 05* Sludges from physico/chemical treatment containing hazardous substances Hazardous

Using this code

Write the code on the paperwork when waste is passed on: a waste transfer note for non-hazardous waste, or a consignment note for hazardous waste (called special waste in Scotland).
Choose the code from where the waste came from first (the chapter), then what it is. If a load is mixed, you may need more than one code.
The waste must go to a site whose permit allows that code. A registered carrier can tell you which codes they accept: check a waste carrier.
Businesses have a duty of care to describe their waste correctly.

Other codes in section 19 02

19 02 03 Premixed wastes composed only of non-hazardous wastes Not hazardous
19 02 04* Premixed wastes composed of at least one hazardous waste Hazardous
19 02 05* Sludges from physico/chemical treatment containing hazardous substances Hazardous
19 02 07* Oil and concentrates from separation Hazardous
19 02 08* Liquid combustible wastes containing hazardous substances Hazardous
19 02 09* Solid combustible wastes containing hazardous substances Hazardous
19 02 10 Combustible wastes other than those mentioned in 19 02 08 and 19 02 09 Not hazardous
19 02 11* Other wastes containing hazardous substances Hazardous
19 02 99 Wastes not otherwise specified Not hazardous

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.