Exchangeable sodium is greater than 15 percent. Salinity is 4 to 15 mmhos. Exchangeable sodium is 10 to 30 percent. Calcium carbonate equivalent is 6 to 15 percent. Salinity ranges from 8 to 15 mmhos.
Reaction is moderately through very strongly alkaline.
The C horizon when, present, has the same range in texture,reaction, and color as the Bkn horizon. Exchangeable sodium is 10 to 25 percent. These are the Allentine , Deertrail , Gilt Edge , and Loshman series. The Allentine and Gilt Edge soils contain 50 to 60 percent clay in the Bt horizon. Deertrail soils are not dry for 60 consecutive days in the moisture control section during the 90 day period following the summer solstice.