Translate the following English sentence to French:
"The effort to keep our aquifers in the European Union as clean as possible, or as unpolluted as possible, is a key effort if we want to guarantee balanced development, sustainable development and a habitable Europe for future generations."
L' effort fourni en vue de maintenir les nappes aquifères de l' Union européenne les plus propres, ou les moins polluées possible, est un effort fondamental si nous voulons garantir un développement durable et une Europe habitable pour les générations futures.