Acknowledgements
This special issue has brought together scientists who were involved in the recent Groundwater Knowledge Acquisition Program. We wish to thank the authors who have contributed to advancing knowledge about groundwater resources in the Province of Quebec. We acknowledge the financial contribution of the Quebec Ministry of the Environment (Ministère du Développement durable, de l’Environnement et de la Lutte contre les changements climatiques) through the Groundwater Knowledge Acquisition Program (PACES), as well as the contribution of all the regional partners that were involved in the projects. We also thank the reviewers who have contributed to the high scientific level achieved by this special issue and all its comprising articles.