Frequency of sampling
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4.—(1) Sampling for a Group B parameter must be undertaken at the frequencies specified in Table 4 for those parameters.
TABLE 4
Minimum frequency of sampling for Group B parameters
| Volume m3 /day (calculated as averages taken over a calendar year) | Sampling frequency per year |
|---|---|
| ≤ 1000 | 1 |
| > 1000 ≤ 10,000 | 1 + 1 for each 3,300 m3/day of the total volume (rounding up to the nearest multiple of 3,300 m3/day) |
| > 10,000 ≤ 100,000 | 3 + 1 for each 10,000 m3/day of the total volume (rounding up to the nearest multiple of 10,000 m3/day) |
| > 100,000 | 10 + 1 for each 25,000 m3/day of the total volume (rounding up to the nearest multiple of 25,000 m3/day) |