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The Water Supply (Water Quality) Regulations (Northern Ireland) 2017

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Risk assessment

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30.—(1) This regulation applies to every treatment works and its connected supply system from which water is supplied for regulation 5(1) purposes.

(2) A water undertaker must carry out a risk assessment of each of its treatment works and its connected supply system in order to establish whether there is a significant risk of supplying water from those works that would constitute a potential risk to human health or is likely to be unwholesome.

(3) A risk assessment must-

(a)be carried out in accordance with a method which is approved by the Department;

(b)be based on the general principles of a risk assessment set out in international standards such as EN 15975-2 concerning “security of drinking water supply, guidelines for risk and crisis management”(1);

(c)take into account the results from the monitoring programmes-

(i)under these regulations; and

(ii)under Regulation 11 (monitoring) of the Water Environment (Water Framework Directive) Regulations (Northern Ireland) 2017(2) in respect of bodies of water identified under Regulation 8 of those Regulations (bodies of water used for the abstraction of drinking water).

(4) A water undertaker must keep under review and, where necessary, update the risk assessment.

(5) A water undertaker must review and, where necessary, update the risk assessment when monitoring programmes are reviewed under regulation 6.

(6) The Department may by notice served on a water undertaker require a risk assessment or review to be carried out by a date specified in the notice.

(7) Where a water undertaker becomes aware of any factors which make it likely that a risk assessment under this regulation would establish that there is a significant risk of supplying water that would constitute a potential risk to human health or that is likely to be unwholesome it must serve a notice on the Department specifying the relevant factors.

(8) On the coming into force of these Regulations, a risk assessment carried out under regulation 27 of the 2007 Regulations which had effect immediately before the coming into force of these Regulations continues to have effect subject to paragraph (9) and shall be construed as having been carried out under this regulation, and it must comply with paragraph (4), (5) and (7).

(9) Risk assessments referred to in paragraph (8) must be updated to comply with paragraph (2) and (3) of this regulation by 31 March 2019.

(10) Any new risk assessment carried out under paragraph 2 after the coming into force of these Regulations must after the 31 March 2019 comply with all conditions of this regulation and prior to that date shall comply with paragraphs (4), (5) and (7).

(1)

This standard was approved by the European Committee for Standardization (CEN) on 5th July 2013. Under reference BS

EN 15975-2:2013, it is published as a UK standard by the British Standards Institution (ISBN 978 0 580 84737 0).

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