Evaluation of the metallic and bacteriological quality of well water in Khenifra province (Morocco).

Abstract Water contaminated by microorganisms and chemical molecules is a cause of disease for humans and the environment. For this reason, we have assessed the microbiological quality and metallic trace elements of groundwater used by the rural population of the Khenifra province, Morocco. Two groundwater sampling campaigns were carried out during the period February/August 2021, studying physico-chemical parameters such as temperature, electrical conductivity, dissolved oxygen, and ph. Then, the metallic trace elements were analyzed: lead (Pb), copper (Cu), nickel (Ni), manganese (Mn), iron (Fe), and zinc (Zn). In addition, the samples taken for the bacteriological study were filtered and introduced in a growth medium for the research and enumeration of total aerobic mesophilic germs vary from 1 to 30.103CFUs/ml, total coliforms (1 to 3x102 CFUs/100ml), Escherichia Coli(1 to 3x102 CFUs/100ml)and intestinal enterococci(1 to 290 CFUs/100ml). The analysis was carried out according to the recommendations of Moroccan standards. It is interesting to note that the groundwater in the Khenifra region is contaminated with pollutants and can cause a health risk for the inhabitants.