ABSTRACT
Groundwater (borehole water) which is in aquifers below the surface of the Earth, is one of the Nation's most important natural resources which is required for potable water. This study investigated the physicochemical and bacteriological properties of groundwater (borehole water) samples from ten different locations in Ekosodin, Ovia North East Local Government Area, Edo State, Nigeria. Borehole water samples were collected from ten different boreholes and analysed for physicochemical and bacteriology parameters using standard methods. The results showed that while 14 physicochemical parameters such as pH, Total Dissolved Solids, Electrical Conductivity, Suspended Solids, Dissolved Oxygen, BOD, Turbidity, Colour, Alkalinity, Nitrate, Phosphate, Calcium, Magnesium, Potassium were within permissible limits set by the World Health Organization (WHO). However, total coliform and E. coli were above the permissible limit set by WHO for standard potable water in four sampling stations. The pH of all samples was slightly acidic, ranging from 5.5 to 6.0 across the ten sampling stations. The presence of coliforms and E.coli indicates faecal contamination and possible presence of other pathogenic organisms, making the water from these sources unsafe for drinking and cooking purposes. Proper treatment and disinfection processes are recommended to ensure the microbiological safety of the groundwater before use for potable applications. Periodic monitoring of groundwater quality is also advised to assess seasonal variations and enable timely remedial measures.
