The Water Supply (Water Quality) Regulations 2018

PART 2Annual sampling frequencies: water supply zones

Table 8

Annual sampling frequencies for Group A4 parameters: water supply zones

Note:

This table and each table which follows it in this Part set out the annual sampling frequencies for all the substances and parameters comprising each of the groups to which they correspond, those groups having been outlined in Part 1 of this Schedule. These are determined for each water supply zone according to its estimated population (as specified in column one of each table in this Part). The number of samples to be taken is the standard number specified in column 2, unless a notice varying this number has been given under regulation 9.

Estimated population of water supply zoneStandard sampling frequency per year
<1002
100-4,9994
5,000—9,99912
10,000-29,99924
30,000-49,99936
50,000-79,99952
80,000-100,00076

Table 9

Annual sampling frequencies for Group B1 parameters: water supply zones

Estimated population of water supply zoneStandard sampling frequency per year
<1001
100-4,9994
5,000-100,0008

Table 10

Annual sampling frequencies for Group A1: water supply zones

Estimated population of water supply zoneStandard sampling frequency per year
<1004
≥10012 per 5,000 population

Note:

For the purposes of this Table, where the population is not an exact multiple of 5,000, the population figure must be rounded up to the nearest multiple of 5,000.