The soil profile beneath a certain site consists of 5.0m of silty sand underlain by 13m of clay. The groundwater is at a depth of 2.0m below the ground surface. The sand has a unit weight 19kN/m3 above the groundwater table and 20kN/m3 below water table. The clay has a unit weight of 15.7kN/m3, an effective angle of 35⁰, and an over the consolidation of 2.0.

Plot total, neutral and effective stress diagram.