The * degree of saturation* is the ratio of the volume of water in a soil to the volume of voids.

$latex S = \frac{V_w}{V_v}\times 100\%\newline\newline

=\frac{V_w}{V_g + V_w}\times 100\%&s=2$

*Where:*

S* = Degree of Saturation*

*V _{w} = Volume of water (m^{3} or ft^{3})*

*V*

_{v}= Volume of voids (m^{3}or ft^{3})*V*

_{g}= Volume of air (m^{3}or ft^{3})The degree of saturation is thus a ratio which can be between 0 and 1. It can also be expressed as a percent.

It is the percentage of the void space which is filled with water. The rest is air.

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