UTILISATION DES SYSTEMES D’INFORMATIONS GEOGRAPHIQUES (SIG) ET INTERPOLATION POUR LA CARACTERISATION DE LA POLLUTION DES EAUX SOUTERRAINES EN MILIEU RURAL DE LA VILLE DE SEBAA AYOUNE (BASSIN DE SAIS, MAROC).

The purpose of this study is to map, identify and assess the impact of pollution on groundwater quality in rural areas of the city of Sebaa Ayoune (Fez-Meknes Region, Morocco).It is based on the use of Geographic Information Systems (GIS) and the spatial-temporal evolution of the physical-chemical and bacteriological parameters of the studied waters.To achieve this goal, we conducted seasonal bacteriological monitoring for 2016 and 2017, and annual monitoring for physicochemical parameters (2016-2017).The analyses focused on 6 physico-chemical parameters (turbidity, electrical conductivity, NH4+, NO3-, SO42-, Cl-), and two bacteriological germs indicating faecal pollution (Escherichia coliand intestinal Enterococci). Thematic maps of this pollution show a good state of quality for the water mass studied.