Themes

Criteria

Classes

Codes

Weighting (%)

POTENTIAL

RECHARGE

AREAS

Slope (%)

<1.5

4

25

1.5 - 3

3

3 - 4.5

2

4.5 - 20

1

Fracturing density

(30 × 30 m ² )

<0.6

1

25

0.6 - 1.2

2

1.2 - 2

3

2 - 4.8

4

Superficial lithology

Bedrock

1

30

Weathered Bedrock

2

Sand Cover

3

Alluvium

4

Density of drainage

(30 × 30 m ² )

0 - 0.25

4

20

0.25 - 0.5

3

0.5 - 0.75

2

0.75 - 1.45

1

POTENTIAL PRODUCTIVITY

INDEX

Potential recharge areas

<1.8

1

35

1.8 - 2.3

2

2.3 - 2.7

3

2.7 - 4

4

Piezometric levels (m)

<215

1

10

215 - 230

2

230 - 245

3

245 - 260

4

Fracturing density

(30 × 30 m ² )

<0.6

1

20

0.6 - 1.2

2

1.2 - 2

3

2 - 4.8

4

Deep lithology

Granitoids

3

35

Greenstones

4