ARCEAU-IdF conducts three national multi-actor working groups, based on a pair working team formed by a researcher and an operator :

- Small rivers analyses the opportunities generated by the restoration and the exploitation of small urban rivers in Ile-de-France.
- Stormwater and the city aims to reinforce the dialogue between scientists, operators and all professional actors concerned by stormwater topics.
- Source separation examines the source separation of domestic wastewater.
For more information about our national working groups, please visit our French website