The problem of water pollution affects the whole world including groundwater which is more susceptible to contamination by residues of industry, agriculture and domestic wastewater leading to the emergence of many serious epidemic diseases (cholera, typhoid, amoebiasis,…etc). The purpose of this study is to evaluate the impact of agricultural intensification and discharge of untreated sewage on the physical, chemical and bacteriological water quality of groundwater Maâmora, Kénitra, Morocco. The physicochemical parameters followed are: T°C, pH, EC, NH 4 + , NO 2-, NO 3-, Cl-, F-, HCO 3-, SiO 2 , SO 4 2-, Boron, Dry Residue, Turbidity, Total Hardness (TH), Dissolved O 2 , Oxidisability and total and fecal coliforms of raw water from the boreholes. This study shows that the physicochemical and bacteriological quality of the groundwater which is used as drinking water for the city of Kénitra and adjacent areas is generally good. However, high concentrations of nitrates (NO 3 , NO 2) in