Site      Lat.     Long.     Elev.     D MAT      +/-
                              (°)       (°)                (°C)   (°C) 2s
       Floridan Aquifer      32.00    -81.50        80        -4       0.5
        Carrizo Aquifer      29.00    -98.75       180        -5       0.7
             Chad Basin      11.00    13.00        330      -6.4       2.1
   Serra Grande Aquifer      -7.00    -41.50       400      -5.4       1.1
Stampriet Artesian Basin    -24.50     19.00      1200      -5.3       0.5
      Uitenhage Aquifer     -33.75     25.50       200      -5.5       1.6
             Cango Cave     -33.23     22.13       200      -5.5       0.3