Services d'eau et d'assainissement: faire tomber les limites du petit cycle

Marine Colon () and Lætitia Guérin-Schneider ()
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Marine Colon: UM - Université de Montpellier, AgroParisTech, UMR G-EAU - Gestion de l'Eau, Acteurs, Usages - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - IRD - Institut de Recherche pour le Développement - AgroParisTech - IRSTEA - Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture - Montpellier SupAgro - Institut national d’études supérieures agronomiques de Montpellier
Lætitia Guérin-Schneider: UMR G-EAU - Gestion de l'Eau, Acteurs, Usages - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - BRGM - Bureau de Recherches Géologiques et Minières - IRD - Institut de Recherche pour le Développement - AgroParisTech - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Institut Agro Montpellier - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement, INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement

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Abstract: For a long time, the management of water resources (the large water cycle) and water services (the small water cycle) were the responsibility of different actors and on different scales. The small water cycle covers drinking water and wastewater networks. It is the responsibility of local elected representatives (municipalities and inter-municipalities) and is structured around the triptych of elected representatives (organiser), operator (manager) and subscribers (paying user). The State sets and monitors the application of the rules. For a long time, it contributed to financing the networks, a role that has now been entrusted to the water agencies. Initially, the issue was access to water (connection to the network). This has now shifted to the quality of resources, creating an initial bridge between the small and large water cycles: the control of diffuse pollution and the setting of discharge requirements for wastewater treatment plants are reasoned at the scale of the water body. Climate change is further accentuating quantitative tensions on a wider scale. Quantitative management is moving from a technical issue (building water access infrastructures) to a governance issue (organising the sharing of water between different uses). Against this backdrop, what are the challenges and avenues for development in France, and more specifically in the Occitanie region? Translated with DeepL.com (free version)

Date: 2021
Note: View the original document on HAL open archive server: https://hal.science/hal-04574454v1
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Published in Sylvain Barone; Julie Fabre; Julia Hidalgo; David Salas y Melia; Guillaume Simonet. Cahier Régional Occitanie sur les Changements Climatiques, Réseau d’expertise sur les changements climatiques en Occitanie (RECO), pp.81, 2021

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