Opinion of Mr Advocate General Lenz delivered on 21 February 1991

1 Original language: German.

2 Council Directive of 16 June 1975 concerning the quality required of surface water intended for the abstraction of drinking water in the Member Slates (OJ 1975 L 194, p. 34 et seq.).

3 Council Directive of 9 October 1979 concerning methods of measurement and frequencies of sampling and analysis of surface water intended for the abstraction of drinking water in the Member Slates (OJ 1979 L 271, p. 44 et seq.).

4 Royal Decree of 25 September 1984, Moniteur Belge of 27 February 1985, p. 2168

5 Case 39/72 Communon v Italy [1973] ECR 101, paragraphs 9 and 11; Case 103/84 Communon v Italy [1986] ECR 1759, paragraphs 8 and 9, Case 154/84 Communon v Italy [1987] ECR 2717, paragraph 6, see also mv Opinion in Case 240/86 [1988] ECR 1835, paragraph 12

6 See lhe judgment in Case 200/88 Commission v Hellenic Republic [1990] ECR I-4299, paragraph 13 et seq

7 See judgment in Case 28/69 Commisiion v Italy [1970] ECR 187, in particular at p. 190.

8 See the judgment in Case 309/84 Commisiion v Italy [1986] ECR 599, paragraph 17.

9 Sec Case 200/88, above.