Regulation 12 Sampling and analysis

United Kingdom

(1)

When a local authority monitors a private water supply in accordance with regulations 8 to 11, it must take a sample—

(a)

if the water is supplied for domestic purposes, from a tap normally used to supply water for human consumption (and which, if there is more than one tap, is representative of the water supplied to the premises);

(b)

if the water is used in a food-production undertaking, at the point at which it is used in the undertaking;

(c)

if the water is supplied from a tanker, at the point at which it emerges from the tanker;

(d)

in any other case, at a suitable point.

(2)

The local authority must ensure that the sample is analysed in accordance with Schedule 3.

(3)

The further provisions for sampling and analysis in Schedule 3 apply.

F1(4)

Compliance samples for chemical parameters including copper, lead and nickel must take the form of a random daytime sample of one litre volume taken at a consumer’s tap without prior flushing.

(5)

All sampling under this regulation—

(a)

for chemical parameters in the distribution network must, other than where the sample is taken at a consumer’s tap, be undertaken in accordance with international standard ISO 5667-5 entitled “Water quality. Sampling. Guidance on treatment of drinking water from treatment works and piped distribution systems”;

(b)

for microbiological parameters in the distribution network and at a consumer’s tap must be undertaken in accordance with European standard EN ISO 19458 entitled “Water Quality – Sampling for microbiological analysis” using sampling procedure A in the distribution network and sampling procedure B at a consumer’s tap.

Annotations

Textual amendments

F1: Reg. 12(4)(5) inserted (11.7.2018) by The Private Water Supplies (England) (Amendment) Regulations 2018 (S.I. 2018/707), regs. 1(1), 2(6) (with reg. 3)