Regulations 2, 3(1) and (3), 4(1), 5(3) and (4) and 6(1)
| No. in Annex II to 75/440/EEC | Parameters | Units | Limits | ||
|---|---|---|---|---|---|
| DW1 | DW2 | DW3 | |||
(O) See regulation 4(1)(b). | |||||
* See regulation 4(1)(d). | |||||
| 2 | Coloration (after simple filtration) | mg/1 Pt Scale | 20(O) | 100(O) | 200(O) |
| 4 | Temperature | °C | 25(O) | 25(O) | 25(O) |
| 7* | Nitrates | mg/l NO3 | 50(O) | 50(O) | 50(O) |
| 8 | Fluorides | mg/l F | 1.5 | ||
| 10* | Dissolved iron | mg/l Fe | 0.3 | 2 | |
| 12 | Copper | mg/l Cu | 0.05(O) | ||
| 13 | Zinc | mg/l Zn | 3 | 5 | 5 |
| 19 | Arsenic | mg/l As | 0.05 | 0.05 | 0.1 |
| 20 | Cadmium | mg/l Cd | 0.005 | 0.005 | 0.005 |
| 21 | Total chromium | mg/l Cr | 0.05 | 0.05 | 0.05 |
| 22 | Lead | mg/l Pb | 0.05 | 0.05 | 0.05 |
| 23 | Selenium | mg/l Se | 0.01 | 0.01 | 0.01 |
| 24 | Mercury | mg/l Hg | 0.001 | 0.001 | 0.001 |
| 25 | Barium | mg/l Ba | 0.1 | 1 | 1 |
| 26 | Cyanide | mg/l CN | 0.05 | 0.05 | 0.05 |
| 27 | Sulphates | mg/l SO4 | 250 | 250(O) | 250(O) |
| 31 | Phenols (phenol index) paranitraniline 4-aminoantipyrine | mg/l C6H5OH | 0.001 | 0.005 | 0.1 |
| 32 | Dissolved or emulsified hydrocarbons | mg/l | 0.05 | 0.2 | 1 |
| 33 | Polycyclic aromatic hydrocarbons | mg/l | 0.0002 | 0.0002 | 0.001 |
| 34 | Total pesticides (parathion, hexachlorocyclohexane, dieldrin) | mg/l | 0.001 | 0.0025 | 0.005 |
| 39 | Ammonium | mg/l NH4 | 1.5 | 4(O) | |