ABSTRACT
Comparative study of groundwater quality in a flood prone and dumpsite environment have been determined. A total of five (5) groundwater samples were collected from existing boreholes at different locations within the study area. Physiochemical and biological characteristics were evaluated using standard methods. The parameters analyzed include pH, EC, TDS, Na+, Ca+, Mg2+, Cl-, NO3- , HNO3- , HNO3- , SO42- , Cr2-, Cd-, Ni-, and Pb2+, Coliform and E. Coli counts. The results reveals that the study areas have average value of pH (4.89) which is below the WHO (2011) and NSQW (2007) standard permissible limit of 6.5-8.5 and this indicates that the water is slightly acidic probably due to the presence of decayed organic matter in high amounts and mineral acids produced during hydrolysis. The average values of E.C (121.86μS/cm), TDS (46.52mg/l), Na+ (1.48mg/l), Cl- (53.85mg/l), NO3- (1.17mg/l), HNO3- (0.39mg/l), SO42- (0.12mg/l), Cr2- (0.031), and Ni- (0.0074) conforms with the WHO (2011) and NSQW (2007) standard for drinking water expect some physiochemical parameters : Ca2+, Mg2+ Cd-, Pb2+, E. Coli and Coliform which has average values (4.49mg/l, 3.10mg/l, 0.027mg/l, 0.016mg/l, 1.36 X 103 (cfu/100mL) and 1.06 X 103 (cfu/mL) which do not conform with the WHO (2011) and NSQW (2007). This may be due to a number of factors including anthropogenic activities ongoing in the study area.
