Assessment Of Groundwater Quality Of Biu And Environs North Eastern Nigeria.

Geo-electrical data were adopted and utilized in determining the hydraulic conductivity and transmissivity of the study area. Hydraulic conductivity and transmissivity varied from 3 to 34mday and 33 to 919m2day respectively. Correlation coefficient between transmissivity and hydraulic conductivity give positive correlation which signifies a perfect correlation. In order to determine the groundwater quality of Biu groundwater samples were collected from fourteen boreholes and ten hand dug well within the study area. The water sample were analyzed for physiochemical and bacteriological properties to assess its suitability for drinking and irrigation purposes. Some areas have elevated concentration of conductivity TDS manganese lead magnesium and microbial which are consider unsafe for drinking based on World Health Organization guidelines concentration for drinking water. Only 29 of borehole and 10 of hand dug well are free from contamination. Sodium adsorption ratio and percentage sodium have been studied to evaluate the suitability of the groundwater for irrigation purpose. Groundwater within the study area is safe for irrigation with respect to its sodium adsorption ration and Sodium percent. Sample BH6 has high value of sodium adsorption ratio which is unsuitable for irrigation.