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Groundwater pollution vulnerability assessment in the Assin municipalities of Ghana using GIS-based DRASTIC and SINTACS methods by Derrick Owusu Mensah; Emmanuel K. Appiah-Adjei; Dennis Asante is a Environmental Science article available to read on EtoBox.

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This study has employed the DRASTIC and SINTACS models to assess the groundwater pollution vulnerability potential in the Assin municipalities of Ghana, where agricultural activities, increase in population and industrial activities stand to negatively impact the quality of groundwater, which is the main source of water supply to the populace. Hydrogeological parameters including depth to the water table, aquifer recharge, hydraulic properties of the aquifer, surface topography, and soil properties were utilized in the Geographical Information System (GIS) environment to evaluate the vulnerability of the study area to groundwater pollution. The results indicate that fractured and weathered granites are the main aquifer formations in the area, while the principal soils are mainly clay, clayey sand, loamy and sandy clay, with depth to the water table and hydraulic conductivity ranging between 12-62 m and 0.0031-2.4705 m/day, respectively. In addition, the net recharge range is between 122.80 and 198.20 mm/year, with an average of 163.27 mm/year. DRASTIC model assessment showed that 812.78 km 2 (33.62%) of the area has low vulnerability potential with the remaining 1604.22 km 2 (66.37

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Author

Derrick Owusu Mensah; Emmanuel K. Appiah-Adjei; Dennis Asante

Publisher

Springer Science and Business Media LLC

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)