F1SCHEDULE 1AMONITORING: MINIMUM REQUIREMENTS
PART DSampling methods and sampling points
2
Subject to paragraph 1, sampling at the point of compliance must meet the following requirements:—
a
a sample for copper, lead or nickel must be taken at the consumer’s tap without prior flushing;
b
a sample for any such parameter or any other chemical parameter must—
i
be a random daytime sample of one litre volume; or
ii
use a fixed stagnation time method that better reflects the national situation, provided that, at the water supply zone level, this does not result in fewer cases of non-compliance than using the random daytime method; and
c
a sample for microbiological parameters at the point of compliance must be taken and handled in accordance with sampling purpose B of European standard EN ISO 19458:2006 entitled “Water quality - Sampling for microbiological analysis (ISO 19458:2006)”.
Sch. 1A inserted (27.10.2017) by The Public Water Supplies (Scotland) Amendment Regulations 2017 (S.S.I. 2017/281), reg. 1(1), sch. 1 (as amended by The Public and Private Water Supplies (Miscellaneous Amendments) (Scotland) Regulations 2017 (S.S.I. 2017/321), regs. 1, 3(2))