| Code | Label | Definition |
|---|---|---|
| CW | Surface Water Body - category Coastal | |
| GW | Groundwater Body | |
| RBD | National part of a River Basin District | |
| SU | SubUnit of an RBD | |
| SWL | Surface Water Body - category Lake | |
| SWR | Surface Water Body - category River | |
| TW | Surface Water Body - category Transitional |
European Environment Agency
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