Field Trip - Northern Guam Lens Aquifer Jun 2014 | Página 8

Groundwater Basins and
Zones of the Aquifer

Surface of the
Aquifer

LIMESTONE TERRAIN
VOLCANIC TERRAIN
SINKHOLES
and other closed
depressions

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Major geologic fault
Pago-Adelup fault

GROUNDWATER ZONES
BASAL WATER
PARA-BASAL WATER
SUPRA-BASAL WATER*
* Supra-basal water is found in discon ѥ