European Waste Catalogue (EWC) Code
19 11 05* – sludges from on-site effluent treatment containing hazardous substances
Chapter
19wastes from waste management facilities, off-site waste water treatment plants and the preparation of water intended for human consumption and water for industrial use
Sub-Chapter
19 11wastes from oil regeneration
Individual Entry
19 11 05*
sludges from on-site effluent treatment containing hazardous substances
Mirror Hazardous
* Signifies Hazardous Waste

Mirror Hazardous - Some wastes are not automatically hazardous or non-hazardous - they are called mirror entry wastes. These wastes have a hazardous waste entry (or entries) marked with an asterisk (*), and an alternative non-hazardous waste entry (or entries) not marked with an asterisk