---
id: "eu_surface_water_body_code"
kind: "datatype"
status: "draft"
is_pii: false
categories: ["environment", "geo"]
country: ["EU"]
langs: ["common"]
quality: 90
url: "https://registry.apicrafter.io/datatype/eu_surface_water_body_code"
---

# EU surface water body code (WFD) (`eu_surface_water_body_code`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

Code of a river, lake, transitional or coastal water body that a Member State reports to the European Environment Agency (WISE) under the Water Framework Directive. It is the two-letter country code (EL for Greece, UK for the former UK reports) followed by the national water body code, 3 to 42 upper-case letters, digits, hyphens and underscores in all, starting and ending with a letter or digit. Codes change between river basin management cycles (Sweden moved to UUID-based codes in 2022), and groundwater body codes have the same form, so check the reporting cycle and column context.

- Personal data (PII): no
- Categories: Environment (protected areas, biodiversity, water, weather, emissions, waste) (environment), Geographic identifiers (geo)
- Countries: European Union (EU)
- Languages: Common to most languages (common)
- Classification: identifier

## Detection

Regular expression (Python `re`):

```
^[A-Z]{2}[0-9A-Z](?:[0-9A-Z_-]{0,38}[0-9A-Z])?$
```

## Examples

- `FRAC01` — French coastal water from the Belgian border to the Malo jetty; Eionet WISE water body vocabulary
- `DECW_DENI_N4-5900-01` — Western Wadden Sea of the Elbe, Germany; Eionet WISE water body vocabulary
- `SE21E5483D-ADCA-4053-A3CC-D71A6010C80C` — Lake Orlången, Sweden (code of the 2022 cycle); Eionet WISE water body vocabulary
- `NL18_KANDWCRN` — Canal through Walcheren, Netherlands; Wikidata example
- `FRAC01_` (invalid example) — Ends with an underscore; the code must end with a letter or digit
- `frac01` (invalid example) — Lower case; EU codes use upper-case letters only

## Mappings

- wikidata: `P2856`

## Translations

- ru: Код поверхностного водного объекта ЕС (ВРД): Код реки, озера, переходных или прибрежных вод, который страна ЕС сообщает в систему WISE по Водной рамочной директиве. Состоит из двухбуквенного кода страны и национального кода водного объекта.

## Sources

- wikidata: <https://www.wikidata.org/wiki/Property:P2856>
- doc: <https://dd.eionet.europa.eu/schemas/WFD2022/WFDCommon_2022.xsd>
- doc: <https://dd.eionet.europa.eu/vocabulary/wise/WaterBody/view>
- doc: <https://eur-lex.europa.eu/eli/dir/2000/60/oj>

## Quality

Score 90/100. Missing: detector coverage.

JSON: <https://registry.apicrafter.io/api/v1/datatypes/eu_surface_water_body_code.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/EU/environment/eu_surface_water_body_code.yaml>