Water table levels (m) Topo to Raster

Areas (% of total)

Alluvial deposits

Marine sediments

Barreiras group

−9.4 to −5

0

0

0

−4.9 to −2

0

0.2

0

−1.9 to 0

0.1

15

0.1

0.1 to 2

20

44.2

1.9

2.1 to 5

51.5

40.8

12.5

5.1 to 10

17

0

21.6

10.1 to 20

11.1

0

36

20.1 to 43.7

0.3

0

27.9