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