GROUND WATER ATLAS of the UNITED STATES
Alaska, Hawaii, Puerto Rico and the U. S. Virgin Islands
HA 730-N

Hawaii Oahu regional aquifer system


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Oahu Regional Aquifer System

Table 3 Table showing hydrologic characteristics of the rocks and deposits of Oahu (44K)
editable eps file Ntab03.eps.gz (376K compressed)


Figure 54 Map showing calderas and rift zones associated with the Koolau and the Waianae Volcanoes (25K)
editable eps file N054.eps.gz (51K compressed)

Figure 55 Map showing the division of Oahu into seven major ground-water areas (26K)
editable eps file N055.eps.gz (38K compressed)

Figure 56 Map showing potentiometric contours and water movement in Oahu (29K)
editable eps file N056.eps.gz (41K compressed)

Figure 57 Cross section showing movement of water from high altitude areas to the Pacific Ocean (44K)
editable eps file N057.eps.gz (152K compressed)

Figure 58 Cross section showing that low-permeability dike zones tend to impede the movement of ground water (24K)
editable eps file N058.eps.gz (57K compressed)

Figure 59 Graphs showing the lowering of water levels in the volcanic-rock aquifer in the Pearl Harbor area due to the large ground-water withdrawals from 1901 through 1980 (22K)
editable eps file N059.eps.gz (84K compressed)

Figure 60 Map showing predevelopment mean annual ground-water recharge to aquifers on Oahu (25K)
editable eps file N060.eps.gz (32K compressed)

Figure 61 Graphs showing estimates of annual ground-water withdrawals from ground-water areas on Oahu (23K)
editable eps file N061.eps.gz (29K compressed)

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