Regulation 22 Remedial action to restore water quality: particular casesI1
Scotland
In the case of a failure to meet a parametric value in Table C, the duty to take action under regulation 21(c) applies only in so far as action is necessary to protect human health.
The duty of an enforcing authority to take remedial action under regulation 21(c) does not apply in relation to a failure referred to in regulation 21(a) (other than a failure to meet a parametric value for radon, tritium or indicative dose) in a case where it can be established by the enforcing authority that the failure was due to a domestic distribution system or its maintenance.
Where paragraph (2) applies and there is a risk that water supplied through or from any part of the domestic distribution system will, at the point of compliance, contain a parameter which exceeds a parametric value in Table A, Table B or Table C, the enforcing authority must ensure—
that appropriate measures are taken to reduce or eliminate the risk, such as—
advising the person who is responsible for the domestic distribution system of any possible remedial action that the person could take to reduce or eliminate the risk; or
treating the water before it is supplied to the domestic distribution system so that the parametric value in question is not exceeded at the point of compliance; and
that each consumer of the water is—
informed of the risk; and
advised of any possible additional remedial action that they should take.