Anthropogenic impact on groundwater quality in the Oued Dfali watershed in the city of Taza, MoroccoAbdelhay Erramach, Mohamed Ben Abbou, Loubna Bougarne, Fatima El Mzabi, Ouafae Najjar, Badr Layan, Brahim Bougdira, Mahmoud Zemzami and Lahcen BenaabidateE3S Web Conf., 726 (2026) 01037DOI: https://doi.org/10.1051/e3sconf/202672601037