A square footing with $1\mathrm{.}5m$ sides is located $1m$ below the ground surface. The

groundwater table is at a depth of $1m.$ Before the footing construction, an undisturbed

sample was taken from the base of the foundation and subjected to a triaxial test until the

sample sheared. A normal stress of $96$kPa was applied to the sample and the shear stress

at failure was $65$kPa. The unconfined compressive strength was determined as $20$kPa.

The dry unit weight of soil is $19k\frac{N}{m^3}$ and the saturated unit weight is $22k\frac{N}{m^3}.$ Find the

net allowable bearing capacity using FS of $3.$