The researchers studied the groundwater in Ga East and Adentan, Ghana to understand how contaminants move through the area. They used data from boreholes to estimate how fast water flows underground and found that most areas have slow flow rates. Rainfall recharges the aquifer at a low rate, and contaminants from a landfill could travel towards nearby communities. The study identified seven main paths that water takes underground, with travel times ranging from 7 to 833 years. The model created by the researchers is reliable for predicting water flow and contamination movement in the area.