Groundwater Quality and Groundwater Vulnerability Assessment

Voudouris, K.; Kazakis, Nerantzis

doi:10.3390/environments8100100

Cited by 3 publications

(2 citation statements)

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“…Seven hydrogeological parameters are included, being acronyms of the term "DRASTIC", Depth of water table, net area Recharge, Aquifer media, Soil media, Topography vadose zone impact, and hydraulic Conductivity. This model has been applied to assess groundwater vulnerability in relatively large urban areas (>40 ha) [13,14]. Shah et al [15], Arowoogun et al [16], Dhakate et al [17] and George [18] showed its effectiveness when combined with electrical resistivity to study contamination plumes migration, with different sources (e.g., dumps, mines, cemeteries) and estimate groundwater vulnerability.…”

Section: Introductionmentioning

confidence: 99%

“…Voudouris's [14] recent study on the application of the DRASTIC model to assess groundwater vulnerability suggested the use of the DRASTIC method in areas >40 ha, combined with GIS. Shah et al [15] applied the DRASTIC model and electrical conductivity to evaluate groundwater vulnerability in Pakistan, revealing lithology significance on different resistivity and contamination flow.…”

Section: Introductionmentioning

confidence: 99%

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Integration of Electrical Resistivity and Modified DRASTIC Model to Assess Groundwater Vulnerability in the Surrounding Area of Hulene-B Waste Dump, Maputo, Mozambique

Bernardo

Candeias

Rocha

2022

Water

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In this study, electrical resistivity was applied in six 400 m profiles around the Hulene-B waste dump (Mozambique). Afterwards, an inversion was performed by RES2Dinv. The use of the electrical resistivity method allowed us to characterize in detail some underlying aspects of the DRASTIC index by identifying anomalous zones considered to be permeable and prone to leachate migration. The modified DRASTIC index revealed high values in areas near contaminated surface groundwater and surface layers of the vadose zone, characterized by low resistivities. Areas with lower index results were characterized by high resistivity on surface layers and high depth at which groundwater was detected. The overall modified DRASTIC index result revealed medium vulnerability. However, high vulnerability index values were detected in areas with higher surface elevation, suggesting groundwater contamination by horizontal dilution of leachates from the surrounding area of the Hulene-B waste dump.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Integration of Electrical Resistivity and Modified DRASTIC Model to Assess Groundwater Vulnerability in the Surrounding Area of Hulene-B Waste Dump, Maputo, Mozambique

Bernardo

Candeias

Rocha

2022

Water

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Z-number based assessment of groundwater vulnerability to seawater intrusion

Nourani,

Najafi,

Maleki

et al. 2024

Journal of Hydrology

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Vulnerability Mapping of Groundwater Resources of Mekelle City and Surroundings, Tigray Region, Ethiopia

Abera

Gebreyohannes

Asfaw

et al. 2022

Water

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The management and monitoring of the quality of water resources in the Mekelle area are challenging, due to both geogenic and anthropogenic impacts. The extent of these impacts and the sources of pollution in this area have not been thoroughly investigated. In this article, a mapping of water resources vulnerability was carried out using the DRASTIC method and a modified DRASTIC vulnerability map was produced. Single-parameter and map-removal sensitivity analyses were performed on the relevant rates and weights. A final DRASTIC vulnerability index, varying from 54 to 140, was divided into four vulnerability classes: low (225.7 km2), medium (302.8 km2), high (307.2 km2), and very high (187.6 km2); the values in the parentheses indicate the corresponding areal coverage of each class. Similarly, a modified DRASTIC vulnerability index, ranging from 91 to 192, was divided into four vulnerability classes: low (166.4 km2), medium (266.8 km2), high (338.0 km2), and very high (252.2 km2) Nitrates were used to validate both models. in which moderate positive correlations (with Pearson’s correlation coefficient, r) of 0.681 and 0.702 were calculated for the DRASTIC and modified DRASTIC indices, respectively. A comparison of the two maps showed that significant sources of pollution are located in areas with high to very high vulnerability. The results of this research work can be used for the protection and monitoring of groundwater resources in the Mekelle area.

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Groundwater Quality and Groundwater Vulnerability Assessment

Abstract: Groundwater is a valuable and finite resource covering only 30% of the freshwater (3% of the total volume of water) on Earth [...]

Cited by 3 publications

References 10 publications

Integration of Electrical Resistivity and Modified DRASTIC Model to Assess Groundwater Vulnerability in the Surrounding Area of Hulene-B Waste Dump, Maputo, Mozambique

Integration of Electrical Resistivity and Modified DRASTIC Model to Assess Groundwater Vulnerability in the Surrounding Area of Hulene-B Waste Dump, Maputo, Mozambique

Z-number based assessment of groundwater vulnerability to seawater intrusion

Vulnerability Mapping of Groundwater Resources of Mekelle City and Surroundings, Tigray Region, Ethiopia

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