2. Where samples are taken in accordance with regulation 4 from more than one sampling point in relation to the waters in question, the criterion in paragraph 1 shall be satisfied in relation to the samples from each sampling point.
TABLE 9
| (1) | (2) |
|---|---|
| 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 | 300 |
| Bentazone | 500 |
| Benzene | 30 |
| Biphenyl | 25 |
| Chloronitrotoluenes | 10 |
| Demeton | 0.5 |
| Dimethoate | 1 |
| Linuron | 2 |
| Mecoprop | 20 |
| Naphthalene | 5 |
| Toluene | 40 |
| Triazaphos | 0.005 |
| Xylene | 30 |