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1. Member States shall ensure that a risk assessment of domestic distribution systems is carried out. That risk assessment shall comprise the following elements:

(a) a general analysis of the potential risks associated with domestic distribution systems, and with related products and materials, and whether those potential risks affect the quality of water at the point where it emerges from the taps that are normally used for water intended for human consumption; this general analysis shall not entail an analysis of individual properties; and (b) monitoring of the parameters listed in Part D of Annex I in premises where specific risks to water quality and human health have been identified during the general analysis performed under point (a). In relation to Legionella or lead, Member States may decide to focus the monitoring referred to in point (b) of the first subparagraph on priority premises.

2. Where Member States conclude, on the basis of the general analysis carried out under point (a) of the first subparagraph of paragraph 1, that there is a risk to human health stemming from domestic distribution systems or from the related products and materials, or where monitoring performed in accordance with point (b) of the first subparagraph of paragraph 1 demonstrates that the parametric values set out in Part D of Annex I are not met, Member States shall ensure that appropriate measures are taken to eliminate or reduce the risk of non-compliance with the parametric values set out in Part D of Annex I. In relation to Legionella, those measures shall target at least priority premises.

3. In order to reduce the risks connected with domestic distribution across all domestic distribution systems, Member States shall ensure that all of the following measures are considered and that those measures considered relevant are taken:

(a) encourage owners of public and private premises to carry out a risk assessment of the domestic distribution system;

(b) inform consumers and owners of public and private premises about measures to eliminate or reduce the risk of non-compliance with the quality standards for water intended for human consumption due to the domestic distribution system;

(c) advise consumers about the conditions of consumption and use of water intended for human consumption, and about possible action to avoid the reoccurrence of those risks;

(d) promote training for plumbers and other professionals dealing with domestic distribution systems and the installation of construction products and materials that come into contact with water intended for human consumption;

(e) in relation to Legionella, ensure that effective control and management measures which are proportionate to the risk are in place to prevent and address possible outbreaks of the disease; and (f) in relation to lead, if economically and technically feasible, implement measures for substitution of components made of lead in existing domestic distribution systems.