Article 4

Council Directive 79/869/EEC of 9 October 1979 concerning the methods of measurement and frequencies of sampling and analysis of surface water intended for the abstraction of drinking water in the Member States · European Union

1. The minimum annual frequencies of sampling and analysis for each parameter are set out in Annex II to this Directive. Sampling must as far as possible be spread over the year so as to give a representative picture of the quality of the water. 2. Surface water samples must be representative of the quality of the water at the sampling point as defined in Article 5 (4) of Directive 75/440/EEC.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-13 · Text as adopted (Official Journal); later amendments are not incorporated in this text.