24.—(1) In the case of water bottled and labelled as “spring water” and bottled drinking water, each district council must carry out regular monitoring of the quality of the water to check that—
(a)it satisfies the requirements of Directive 98/83 and in particular complies with the parametric values set in accordance with Schedule 7; and
(b)where disinfection forms part of the preparation or distribution of bottled drinking water, the disinfection treatment applied is efficient and any contamination from disinfection by-products is kept as low as possible without compromising the disinfection.
(2) In order to comply with paragraph (1), each district council must carry out—
(a)monitoring in accordance with Schedule 8 to check whether the water complies with the relevant parametric values specified in Parts 2 and 3 of Schedule 7; and
(b)monitoring in accordance with Schedule 9 to check whether the water complies with the relevant parametric values specified in Part 4 of Schedule 7.
(3) Each district council must carry out additional monitoring, on a case-by-case basis, in relation to any property, element, substance or organism other than a parameter specified in Schedule 7, if the district council has reason to suspect that it may be present in the water concerned in an amount or number which constitutes a potential danger to human health.