waste water
as defined in Regulation (EC) No 166/2006 of the European Parliament and of the Council of …, Article 2, point (15) (Definitions)
urban, domestic and industrial waste water, as defined in Article 2(1), (2) and (3) of Council Directive 91/271/EEC of 21 May 1991 concerning urban waste water treatment, and any other used water which is subject, because of the substances or objects it contains, to regulation by Community law