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<br />U o S. BURF�'+U OF SOII.S CI.,�SSIFICATIOPJ SYSTEM
<br />� We use the U. S, Bureau of Soils method of soil classification which is baseci on the
<br />texture of the soil, The texture of a soil is infllienced by the amount of the various
<br />sizes of soil particles in the soil, The soil particles are grouped into three
<br />particle size classifications as follows:
<br />� Particle-Size J)iameter of
<br />Classification U. S. Standard
<br />Particles(Millimeters) Sieve
<br />Sand 2.0 �0 0.05
<br />�II Silt o.05 to 0,005 #�o to #270
<br />Clay Smaller than Q,OpS (Cannot be separated
<br />Soil is grouped into twelve basic classifications according to ihe ebcenta es g)f
<br />�II silt and clay present in the soil. These classifications are sho�,mpb the fo � Sand�
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