(a)

Council Directive 91/676/EEC of 12 December 1991 concerning the protection of waters against pollution caused by nitrates from agricultural sources · European Union

within two years of notification of the Directive, monitor the nitrate concentration in freshwaters over a period of one year: at surface water sampling stations, laid down in Article 5 (4) of Directive 75/440/EEC and/or at other sampling stations which are representative of surface waters of Member States, at least monthly and more frequently during flood periods; at sampling stations which are representative of the groundwater aquifers of Member States, at regular intervals and taking into account the provisions of Directive 80/778/EEC;

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Source: EUR-Lex CELLAR · retrieved 2026-08-09 · Text as consolidated on 2026-03-02; changes after this date are not shown.