ABSTRACT
ABSTRACT: Chemical analysis of groundwater in two separate areas of the coastal city of Port Harcourt, Rivers State of Nigeria, was carried out in order to determine the chemical distribution of the groundwater and evaluate the rate of saline water migration. Nineteen (19) samples were collected from the area close to the sea and creeks (Group A) and from an area inland (Group B). Samples of group ‘A’ are dominated by Na Cl and have average TDS of approximately 200 mg/l; samples from group ‘B’ are weakly mineralized (TDS approximately 50 mg/l), although still dominated by Na Cl. The study indicates that groundwater closer to the sea is affected by saline intrusion. Comparison of the groundwater chemistry of the group A samples in this study with samples from the same study area in 1990 show a deterioration in groundwater quality in the past 15 years.
