Analysis And Water Quality Index Assessment Of Selected Boreholes Water In Agudama-Epie To Edepie Axis Of Yenagoa Metropolis Of Bayelsa State, Nigeria
MANSI WALAMAM EGBO
Researc and Development Centre Bayelsa State Polytechnic, Aleibiri.
YAGUO EREMASI BENJAMIN IKELE
Directorate of Academic Planning Bayelsa State Polytechnic, Aleibiri
Keywords: Boreholes. Water, quality, assessment.
Abstract
Groundwater is a major source of water for human consumption and other activities such as domestic, commercial and agricultural activities. In Bayelsa State, south- South Nigeria, residents depend heavily on boreholes water for their daily needs. In this study, 23 physicochemical and heavy metal water quality parameters in selected boreholes water within Agudama- Epie to Edepie axis of Yenagoa have been analysed and water quality index model used to evaluate the potability of the boreholes water. The results indicate that all the parameters analysed were below the limit recommended by the Nigeria drinking water quality standard (NSDQW, 2015), and the World Health guidelines for water quality (WHO, 2017) except for Cadmium which concentration was above the recommended limit (0.003) at sampling point 1 and 3 in Agudama Epie and point 1 in Edepie .i.e. 0.006mg/l s/cm, 0.005mg/l and 0.004mg/l respectively. The results of the water quality index characterizations presented in Table 3.2 revealed that the quality of waters collected from points 1 and 3 in Agudama Epie are unsuitable for drinking while the one at point 2 is poor for drinking purpose. The quality of waters collected from points 1, 2 and 3 in Akenpai are good for drinking purpose. While the waters collected from points1and 2 in Edepie are unsuitable for drinking and the water from point 3 has poor quality for drinking. The unsuitability and poor quality of the water is attributed to the influence of Cadmium concentration in those areas. It is recommended that boreholes water in this area should be subjected to secondary treatment before selling to the public for consumption purpose.