A preliminary analysis of the hydrogeological conditions and groundwater flow in some parts of a crystalline aquifer system: Afigya Sekyere South District, Ghana

Yidana, Sandow Mark; Essel, Stephen Kwaku; Addai, Millicent Obeng; Fynn, Obed Fiifi

doi:10.1016/j.jafrearsci.2014.12.011

Cited by 6 publications

(7 citation statements)

References 16 publications

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“…Similarly, the range of Cl − is 5.22-170.72 mg/l and it is below the WHO (2012) value of 250.00 mg/l. The spatial variation map of Na + shows that the concentration is high in selected communities within the southern part which serves as the discharge area and is underlain by the Birimian granitoid (Yidana et al 2015). It is worth noted that the spatial distribution of Cl − and Na + follow a similar pattern in the study (Fig.…”

Section: Spatial Distribution Of Water Quality Parameterssupporting

confidence: 63%

“…The district has an equatorial climate, a minor rainfall period (between September and November), and a major rainfall period (between March and July). The mean annual rainfall ranges between 855 and 1500 mm and the average number of rainy days for the year is between 110 and 120 days (Yidana et al 2015). The district has a dissected plateau landscape that forms part of the Mampong-Gambaga scarp with heights between 800 and 1200 m above sea level.…”

Section: The Study Areamentioning

confidence: 99%

“…The geology of the Afigya Kwabre District is made of the Voltaian Supergroup and granitoids of the Birimian (Fig. 1) both of which hydrogeology are controlled by secondary hydrogeological parameters such as weathering, fractures, and fissures (Yidana et al 2015). According to Kesse (1985), the pan-African tectonic activities affected the hydrogeological properties of the semi-confined Voltaian sandstone formation.…”

Section: The Study Areamentioning

confidence: 99%

“…According to Kesse (1985), the pan-African tectonic activities affected the hydrogeological properties of the semi-confined Voltaian sandstone formation. After undergoing partial metamorphism, the formation which is hydrogeologically difficult to study in Ghana had reduced success rates for drilling prolific wells to less than 60% (Yidana et al 2015).…”

Section: The Study Areamentioning

confidence: 99%

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Application of geostatistical techniques in the assessment of groundwater contamination in the Afigya Kwabre District of Ghana

Agyemang

2022

Appl Water Sci

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Geostatistical techniques have been applied to successfully assess the groundwater quality in the Afigya Kwabre District of Ghana. Forty boreholes were sampled for physicochemical and bacteriological characteristics of the groundwater. Principal component analysis revealed that seven components contain 81.01% of the variation of the original variables. Factor 1 accounted for 31.34% of the total variance, factor 2 accounted for 10.97%, third and fourth factors explained 8.41% and 8.19%, the fifth factor showed 8.13% while the sixth and seventh components showed 7.76% and 6.21% variances, respectively. R-mode cluster analysis showed five clusters. Cluster 1 was made of Na+, Cl−, TH, SiO2, HCO3− and TDS. Cluster 2 and cluster 3 contained dissolved oxygen (DO), pH, K+ and F−, Br, respectively. Cluster 4 was made of PO43− and NO3−and Cluster 5 had Ca2+, Mg2+, Total. coli, Fecal. coli, SO42−, and salinity. Correlation analysis revealed a strong positive correlation between EC and TDS, Mg2+, Ca2+, Mn, Na+, TH, HCO3−; pH and Ca2+, HCO3−; Mg2+ and Ca2+, Na+, TH, HCO3−, Fe; Ca2+ and Na+, TH, HCO3−; Cu and PO43−; Mn and Na+; F− and SO42− as well as NO3− and PO43−. The study revealed the impact of both natural processes such as rock mineral weathering, ion exchange, and anthropogenic activities such as application of agrochemicals on farmlands and improper waste disposal on the geochemistry of the groundwater. Generally, the groundwater in the District has a low pH. However, it is generally suitable for domestic use with exception of a few samples with high Fe, F-, Pb concentrations and Escherichia coliform and fecal coliform contaminations. The study has shown that the geostatistical technique is useful in determining the state of water contamination, the extent of contamination, and possible source of contaminants, as well as presenting a guideline for effective groundwater resource management.

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Section: Spatial Distribution Of Water Quality Parameterssupporting

confidence: 63%

Section: The Study Areamentioning

confidence: 99%

Section: The Study Areamentioning

confidence: 99%

Section: The Study Areamentioning

confidence: 99%

See 2 more Smart Citations

Application of geostatistical techniques in the assessment of groundwater contamination in the Afigya Kwabre District of Ghana

Agyemang

2022

Appl Water Sci

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“…The most important aspect of the use of such models is acquiring data on the real conditions occurring within the observed environment. Namely, such models provide su cient information for e cient management of groundwater resources (Leake et al 2005;Mengistu et al 2015;Yihdego et al 2015a, b;Yidana et al 2015). The rst step in the modeling process is creating a conceptual model.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Modeling of Groundwater Flow – Foundation Piles in the Vicinity of Danube River Case Study

Milić

Jeftenić

Stipić

et al. 2023

Preprint

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The study investigates an interaction of groundwater flow and foundation piles located in the vicinity of the Danube River. The piles represent an obstacle to the groundwater flow, causing the backwater effect upstream, whilst increasing the local flow velocity. On the other hand, high flow velocity around the piles can cause the suffusion of the surrounding soil in the long term, thus significantly reducing the shaft resistance of the piles. A 3D model of groundwater flow and its impact on the piles was developed in the software package GMS.9.2 based on MODFLOW 2005. It was calibrated by comparing the water level values obtained as a result of the simulations with varying filtration coefficient inputs with the observed values in the monitoring well. After the calibration process, piles were implemented into the model and the underground flow was simulated at the study area location for the calibrated year 2006. The impact analysis was carried out by comparing the groundwater level change over time in the pile zone in three control points, in cases with and without the piles, along with the flow net analysis at the location of the piles themselves. The obtained results indicate an absence of the influence of piles on the groundwater flow at the study area location, both in terms of critical flow velocities and in terms of a possible backwater effect upstream.

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Groundwater chemistry and isotopes reveal vulnerability of granitic aquifer in the White Volta River watershed,West Africa

Bam

Bansah

2020

Applied Geochemistry

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A preliminary analysis of the hydrogeological conditions and groundwater flow in some parts of a crystalline aquifer system: Afigya Sekyere South District, Ghana

Cited by 6 publications

References 16 publications

Application of geostatistical techniques in the assessment of groundwater contamination in the Afigya Kwabre District of Ghana

Application of geostatistical techniques in the assessment of groundwater contamination in the Afigya Kwabre District of Ghana

Mathematical Modeling of Groundwater Flow – Foundation Piles in the Vicinity of Danube River Case Study

Groundwater chemistry and isotopes reveal vulnerability of granitic aquifer in the White Volta River watershed,West Africa

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