81 30'W 81 W
 I I

 INTERMEDIATE AQUIFER
 SYSTEM / INTERMEDIATE
CONFINING UNIT THICKNESS
 0 5 10 20 30 40


0 510 20 30 40
 Kilometers
 Scale: 1:1,000,000
 Contour Interval: 75 ft
Projection: Custom FDEP Albers


Miles


 Gulf
 of
Mexico


0 0


AN 0


 m m
- 0 0
 00 0


Explanation
m |Study Area
  Wells Used
 Contours
/ Discontinuous*
_?.? Questionable Extent
 Approximate northern limit of IAS
 permeable zones
- Water Management Districts
IAS / ICU Thickness (ft.)
*>900
 450


* Denotes approximate areas where semi-confinement
is laterally more discontinuous than continuous.
Non-hachured areas reflect variable degrees of
confinement that are more laterally continuous.
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 81030W 81OW


PLATE 57


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