An additional cross section comes from three wells drilled on the small islands in the Wekiva River (E-E’, Index Map E). Again, the variability within the post-Tertiary units is apparent, note the high peak in well S-0866 at 3 m (9 ft) NGVD. One mile north in well S-0864, this peak is completely missing as are all of the other clay rich beds in S-0866. The log for S-0864 shows 17 m (55 ft) of clean material, probably sand, below which is a clay unit that may correlate with the blue line in profile B-B’ and represent the top of the Hawthorn Group. The gamma peaks in well S-0866 show that the Hawthorn Group may extend to about -6 m (-20 ft) to -8 m (-25 ft) NGVD. These logs probably do not represent the total drilled depth of the wells since they do not penetrate the Ocala Limestone, yet surface flow and water quality are indicative of the Floridan aquifer. Depth to the Ocala is inferred to be at about -32 m (-105 ft) NGVD (~44 ms), beyond the resolvable depth in the seismic profiles in this area.