| Code | Label | Definition |
|---|---|---|
| 1 | primary treatment | |
| 2 | secondary treatment | |
| 3m | more stringent disinfection | |
| 3N | more stringent nitrogen removal | |
| 3Nm | more stringent nitrogen removal and disinfection | |
| 3NP | more stringent nitrogen and phosphorus removal | |
| 3NPm | more stringent nitrogen and phosphorus removal and disinfection | |
| 3other | any other more stringent treatment (please provide an explantion in the flatpComments field) | |
| 3P | more stringent phosphorus removal | |
| 3Pm | more stringent phosphorus removal and disinfection |
European Environment Agency
Kgs. Nytorv 6, DK-1050 Copenhagen K, Denmark