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Table 6

Relative weight of various thematic layers and their corresponding classes

Influencing factorsCategory (Classes)Potentiality for
groundwater storage
Rating (High = 5; Low = 1)Normalized weight
Geomorphology Alluvial plain Very good 0.066 
Valley fill buried pediplain Good 
Pediment Moderate 
Geology Alluvium Very good 0.202 
Laterite Good 
Sandstone, calcareous rock Moderate 
Shale Poor 
Lineament buffer 0–50 meter Very good 0.152 
50–100 meter Good 
100–150 meter Moderate 
150–200 meter Poor 
Slope 0–1% Very good 0.023 
1–3% Good 
3–5% Poor 
Groundwater depth 3–6 meter Very good 0.071 
6–9 meter Good 
9–12 meter Moderate 
>12 meter Poor 
Rainfall 1,209.92–1,267.84 mm Very good 0.116 
1,151.99–1,209.92 mm Good 
1,094.07–1,151.11 mm Moderate 
1,036.15–1,094.07 mm Poor 
LULC Lake Very good 0.200 
Drainage Very good 
Cultivation Good 
Vegetation Good 
Open land Moderate 
Settlement Poor 
Road Poor 
Industry Poor 
Drainage density 1.43–2.24 Very good 0.079 
2.34–3.12 Good 
3.16–4.12 Moderate 
4.12–4.89 Poor 
Soil texture Sandy clay loam Very good 0.087 
Sandy loam Good 
Clay loam Moderate 
Clay Poor 
Influencing factorsCategory (Classes)Potentiality for
groundwater storage
Rating (High = 5; Low = 1)Normalized weight
Geomorphology Alluvial plain Very good 0.066 
Valley fill buried pediplain Good 
Pediment Moderate 
Geology Alluvium Very good 0.202 
Laterite Good 
Sandstone, calcareous rock Moderate 
Shale Poor 
Lineament buffer 0–50 meter Very good 0.152 
50–100 meter Good 
100–150 meter Moderate 
150–200 meter Poor 
Slope 0–1% Very good 0.023 
1–3% Good 
3–5% Poor 
Groundwater depth 3–6 meter Very good 0.071 
6–9 meter Good 
9–12 meter Moderate 
>12 meter Poor 
Rainfall 1,209.92–1,267.84 mm Very good 0.116 
1,151.99–1,209.92 mm Good 
1,094.07–1,151.11 mm Moderate 
1,036.15–1,094.07 mm Poor 
LULC Lake Very good 0.200 
Drainage Very good 
Cultivation Good 
Vegetation Good 
Open land Moderate 
Settlement Poor 
Road Poor 
Industry Poor 
Drainage density 1.43–2.24 Very good 0.079 
2.34–3.12 Good 
3.16–4.12 Moderate 
4.12–4.89 Poor 
Soil texture Sandy clay loam Very good 0.087 
Sandy loam Good 
Clay loam Moderate 
Clay Poor 
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