(a)
that water is free from any micro-organisms and parasites and from any substances which, in numbers or concentrations, constitute a potential danger to human health;
← art_4__para_1__text_1 · All articles · art_4__para_1__point_a__text_1 →
Source: EUR-Lex (Cellar) · retrieved 2026-10-28 · Text as adopted (Official Journal); later amendments are not incorporated in this text.