Charlotte soils have a spodic horizon. Margate and Hallandale soils are underlain by limestone within depths of 40 inches. Mustang soils have high salt content and are subject to storm tides. Osier soils have soil temperatures of 72 degrees F. or less. Plantation soils have Histic epipedons and limestone bedrock between 20 and 40 inches.
Sanibel soils have Histic epipedons.
Valkaria soils have high chroma Bw horizons. Pompano soils are in poorly defined drainageways, broad, low flat areas, and in depressions. Slopes range from 0 to 2 percent. These soils have formed in thick beds of marine sands. Adamsville soils are on slightly higher ridges and have mottles of chroma 2 or less at depths of 10 to 40 inches.