GROUND WATER ATLAS of the UNITED STATES
Alaska, Hawaii, Puerto Rico and the U. S. Virgin Islands
HA 730-N
Puerto Rico and the U. S. Virgin Islands North Coast Limestone
aquifer system
(figures 96-112)
Introduction (Click to view thumbnails
and download figures)
- Figure 96 Map showing the
location of the North Coast Limestone aquifer system in Puerto
Rico
- Figure 97 Map showing the
percentage of karst topography in the North Coast Limestone aquifer
system
- Figure 98 Photograph showing
an unusual karst feature called a conical mogote
- Figure 99 Photograph showing
a common karst feature called a sinkhole
Hydrogeologic Units (Click to view thumbnails
and download figures)
- Figure 100 Map showing
the geological composition of the North Coast Limestone aquifer
system
- Figure 101 Map showing
the upper and lower parts of the North Coast Limestone aquifer
system
- Figure 102 Generalized
hydrogeologic section showing the composition of the upper and
lower aquifers of the North Coast Limestone aquifer system
- Figure 103 Diagrammatic
section showing the upper and lower aquifers of the North Coast
Limestone aquifer system
Aquifers and Confining Units
Hydraulic Properties (Click to view thumbnails
and download figures)
- Figure 104
Map showing the estimated hydraulic conductivity of the upper
aquifer of the North Coast Limestone aquifer system
- Figure 105
Map showing the estimated transmissivity of the upper aquifer
of the North Coast Limestone aquifer system
- Figure 106
Map showing the estimated transmissivity of the lower aquifer
of the North Coast Limestone aquifer system
Ground-Water Flow (Click to view thumbnails
and download figures)
- Figure 107
Exploded diagrammatic section showing the movement of ground-water
through the North Coast Limestone aquifer system
- Figure 108
Map showing the altitude of the water table in the upper aquifer
of the North Coast Limestone aquifer system
- Figure 109
Map showing the altitude of the water table in the lower aquifer
of the North Coast Limestone aquifer system before and after
development
- Figure 110
Map showing the water-level decline in the lower aquifer of the
North Coast Limestone aquifer system during 1968-1987
Ground-Water Quality (Click to view thumbnails
and download figures)
- Figure 111
Pie charts showing the chemical quality of the water in the North
Coast Limestone aquifer system from the aquifer outcrop areas
and in the downgradient toward the Atlantic Ocean
- Figure 112
Pie chart showing the use of fresh ground-water withdrawals from
the North Coast Limestone aquifer system during 1985
