Formula
![Hydraulic conductivity(given cross section,heigth and time) formula](http://www.wikicalculator.com/formula_image/Hydraulic-conductivity(given-cross-section-heigth-and-time)-397.png)
K
hydraulic conductivity
A
the sample cross section
a
the cross section of the standpipe
L
the height of the soil sample column
t
the recorded time for the water column to flow though the sample
h1
the upper water level in the standpipe measured
h2
the lower water level in the standpipe measured