Sampling of water from the drilling Abouabou was used to measure the following physico-chemical parameters such as pH, electric conductivity, temperature, turbidity, content of silica, chlorides, aluminum, zinc, magnesium, manganese, copper, ammonium, sulfates, nitrates, nitrites, phosphates and fluorides.
Drilling Abouabou aims to increase water supply capacity of the city of Abidjan and its surroundings. Analysis of physical parameters indicates a neutral pH average of 6.8 ± 0.16 units and an average temperature of 28.83 ± 0.7 ° C. The water is highly mineralized and low in suspended solids with a conductivity average of 2990.83 ± 31.55 μS.cm-1 and an average turbidity 0.862 ± 0.91 NTU. The chemical analyzes, in turn, reveal a significant salinity making the water unsuitable for human consumption without pretreatment. A strong correlation is shown between the contents of chlorides and the physicochemical parameters such as temperature, pH, turbidity, content of iron and manganese. This shows that the drilling of water quality is mainly governed by the chloride contents. The geographical location of the structure near the Atlantic Ocean, deep character and a captive of the web (Continental Terminal) and the absence of solid salts (evaporites) in the formations traversed by drilling suggest two mechanisms either a seawater intrusion, a salinity heritage.