Bottled waters are among the most important products in the human diet. In Morocco, eleven bottled mineral waters were analyzed (physicochemical composition and water stable isotopes) to identify their geologic origins and hydrochemical characteristics. The study of the ionic ratios shows that the mechanisms of water–rock interaction, such as the dissolution of carbonate and silicate minerals, influence the chemistry of these mineral waters, which are controlled by lithology and tectonics, sometimes with the influence of deep flux through fractures. The water from the Oulmes plateau shows a Na-HCO₃ chemical facies in relationship with alkaline granite. Moreover, the carbonated waters (EM_G and EM_GL) are characterized by high concentrations of Si, Li, Rb, Sr, and Cs due to deep CO₂ flux origin. The waters of Saiss, Middle Atlas, and Rif are of the Ca-HCO₃ type linked mainly to carbonate formation. The stable isotope contents of water range from −7.74 to −5.35‰ for δ¹⁸O and −45.4 to −30.4‰ for δD. The recharge altitude of the aquifer was estimated to be between 250 and 1200 m, following a δ¹⁸O altitudinal gradient between 0.25 and 0.27‰ per 100 m. The industrial production process and the natural presence or artificial addition of CO₂ can also influence the isotopic composition of water. These results can be a relevant guide to decision makers for better exploitation and assessment of the water quality.

The study focuses on the monitoring of physicochemical parameters and major chemical elements of six springs and wells during two seasons. Waters from the coastal karst aquifer Massif Bokkoya Al-Hoceima were analyzed for their chemical quality, and their state of anthropogenic and/or natural contamination was quantified. The waters are highly mineralized and marked by a chloride-sodium or sodium-sulfate facies mainly linked to a process of marine intrusion and dissolution of evaporitic minerals included in the on-site rocks. This mineralization of marine origin is partly due to the intensive exploitation of groundwater but also to landslides in relationship with earthquakes, that are known in the area, and which accelerate the phenomenon of saltwater intrusion. The salinity shows levels C3 and C4 in a Wilcox diagram and waters were qualified as very hard. The comparison with quality standards shows that most of the water is not suitable for consumption, especially because of high levels of electrical conductivity (EC), total dissolved solids (TDS), and Cl⁻ related to marine intrusion, together with the urban pollution factor which increases the content of NO₃⁻.

The present study aimed to evaluate the effects of human anthropic activities on the physicochemical and biological properties as well as the quantity of the groundwater in the central Rif of Morocco. Series of analyses were carried out on the water resources of this area. The interpretation of...