INTERMEDIATE AQUIFER
 SYSTEM / INTERMEDIATE
CONFINING UNIT SURFACE


0 5 10


30 40


Miles


0 510 20 30 40
 ,= Kilometers


Scale: 1:1,000,000

Contour Interval: 25 ft


Projection:


Custom FDEP Albers


Gulf

 of


Mexico


Explanation

W Study Area


Wells Used


 I
-- I
 -- -
 I


r



I--


/


 Contours

 ?I .i Questionable Extent

z Discontinuous*
-,- Approximate northern limit of IAS
 permeable zones
 - Water Management Districts
 IAS / ICU Surface (ft. MSL)
 >125


<-200


* 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.
 I I
 81 30'W 81'W


PLATE 56