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Expansive Clay Soils >>

Map of California Showing Swell Potential of Reactive Soils

[Pacific] [Rocky Mtn] [Mid-Cont] [Eastern]

See Map Legend Below

 

Unit contains abundant clay having high swelling potential
Part of unit (generally less than 50%) consists of clay having high swelling potential
Unit contains abundant clay having slight to moderate swelling potential
Part of unit (generally less than 50%) consists of clay having slight to moderate swelling potential
Unit contains little or no swelling clay
Data insufficient to indicate clay content of unit and/or swelling potential of clay (Shown in westernmost states only)

 
 
   
 
   
     
 
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