PART 2 E+WAnnual 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 zone | Standard sampling frequency per year |
|---|---|
| <100 | 2 |
| 100-4,999 | 4 |
| 5,000—9,999 | 12 |
| 10,000-29,999 | 24 |
| 30,000-49,999 | 36 |
| 50,000-79,999 | 52 |
| 80,000-100,000 | 76 |
Table 9
Annual sampling frequencies for Group B1 parameters: water supply zones
| Estimated population of water supply zone | Standard sampling frequency per year |
|---|---|
| <100 | 1 |
| 100-4,999 | 4 |
| 5,000-100,000 | 8 |
Table 10
Annual sampling frequencies for Group A1: water supply zones
| Estimated population of water supply zone | Standard sampling frequency per year |
|---|---|
| <100 | 4 |
| ≥100 | 12 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.