| Inorganic parameter in maximum concentrations (mg/L) | |
| Total Arsenic (As) | 0.5 |
| Total Barium (Ba) | 5.0 |
| Total Cadmium (Cd) | 0.2 |
| Total Lead (Pb) | 0.5 |
| Dissolved Copper (Cu) | 1.0 |
| Total Chromium (Cr) | 1.0 |
| Total Tin (Sn) | 4.0 |
| Dissolved Iron (Fe) | 15.0 |
| Dissolved Manganese (Mn) | 1.0 |
| Total Mercury (Hg) | 0.01 |
| Total Nickel (Ni) | 2.0 |
| Total Zinc (Zn) | 5.0 |