2. Where samples are taken in accordance with regulation 4 above from more than one sampling point in relation to the waters in question, the requirement in paragraph 1(a) above must be satisfied in relation to the samples from each sampling point.
TABLE 1
| (1) | (2) |
|---|---|
| Dangerous Substance | Limit (in microgrammes per litre) (annual mean) |
| 4-Chloro-3-methyl-phenol | 40 |
| 2-Chlorophenol | 50 |
| 2,4-Dichlorophenol | 20 |
| 2,4-D (ester) | 1 |
| (non-ester) | 40 |
| 1,1,1-Trichloroethane | 100 |
| 1,1,2-Trichloroethane | 400 |
| Bentazone | 500 |
| Benzene | 30 |
| Biphenyl | 25 |
| Chloronitrotoluenes | 10 |
| Demeton | 0.5 |
| Dimethoate | 1 |
| Linuron | 2 |
| Mecoprop | 20 |
| Naphthalene | 10 |
| Omethoate | 0.01 |
| Toluene | 50 |
| Triazaphos | 0.005 |
| Xylene | 30 |