Slope gradients range from 2 to 40 percent. The soils formed in basic volcanic ash over pahoehoe lava. Kona soils are organic over pahoehoe lava. Moderately well drained. Runoff is medium on gentle slopes and high on steeper slopes.
Permeability is moderate in the soil and very slow in the underlying bedrock.
The series is of small extent. Island of Hawaii, Hawaii County, Hawaii 1971. Thixotropic, isothermic Typic Hydrandepts. Setting and competing series updated.