Morocco faces a serious problem regarding water resources management concerning quantity and quality. This crisis is due to the succession of drought years in the region. The superficial and groundwater resources quality is usually affected by pollution rejected from domestic and industrial wastewater which often contains organic matter, pathogens and chemicals; the leakage of fertilizers and phytosanitary products used in agriculture and the erosion of soils which can also be an important factor whose role is to transport sediments and pollutants. This pollution affects directly the health of the aquatic ecosystem. Therefore, it is important to monitor and supervise the quality of surface water to ensure the safety of human consuming and protect the health of aquatic ecosystems.
This work is based on evaluation of the surface water quality of Srou river by examining several samples taken at six different locations along the Wadi during the following period from August 2021 to May 2022 by measuring various parameters physicochemical and microbiological, including temperature, Hydrogen potential, electrical conductivity, turbidity, dissolved oxygen, hardness, alkalinity, nitrite, orthophosphate, sulfate, E. coli, fecal coliforms and fecal streptococci. These samples have been analyzed using the guidelines of the water quality assessment techniques described by Rodier (2009) and the World Health Organization recommendations. The results showed a slight increase after each extraction in term of electrical conductivity and water hardness, however all the parameters tested are within the norm and the water quality from the source till station 6 is of good quality.