Regulation 6 Use of products or substances in private supplies
(1)
Any product or substance used in the preparation or distribution of a private supply of water, or impurities associated with such products or substances, must not be present in water at the point at which a sample is taken in accordance with regulation 12 that would make it unwholesome or constitute a potential risk to human health.
(2)
Where disinfection forms part of the preparation or distribution of a private supply, the relevant person must—
(a)
design, operate and maintain the disinfection process so as to keep disinfection by-products as low as possible without compromising the effectiveness of the disinfection;
(b)
ensure that the effectiveness of the disinfection process is maintained; and
(c)
verify the effectiveness of the disinfection process.