| Salinity content water | mg/l TDS | Definition | Salinity in ‰ |
| Drinking water | 500 | Consumption water | 0.5‰ |
| Fresh water | Less than 1000 | Fresh water | =1‰ |
| Slightly saline | 1000 to 3000 | Brackish water | 1‰ - 3‰ |
| Moderately saline | 3000 to 10,000 | Brackish water | 3‰ - 10‰ |
| Highly saline | Over 10,000 | Brackish water | >10‰ |
| Oceanic water | 35,000 | Marine water | 35‰ |