# The Water Intended for Human Consumption (Private Supplies) (Scotland) Regulations 2017, Regulation 17: Duty of care: substances and materials

Extent: S

A person who, in relation to a supply of water, modifies any part of a private water supply system or introduces any substance to the water supplied (for purposes in connection with the distribution or preparation of the water) must ensure that no substance or material used or introduced for those purposes (or any impurity associated with any such substance or material)—
(a) remains in the water (including, in particular, at the point of compliance) in concentrations higher than is necessary for the purpose of their use; or
(b) reduces the protection of human health otherwise provided for by these Regulations.

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Source: https://www.legislation.gov.uk/ssi/2017/282/regulation/17 (the official version)
Page: https://openlegislation.uk/water-intended-for-human-consumption-private-supplies-scotland-regulations-2017/regulation-17
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.