Given the soil conditions below, determine how high the water level could rise in Sand 2 before quick conditions, i.e., o = 0, occurs at point A. Show all work to receive full marks. (Hint: determine the pressure heads and total heads at A and B first) (15 marks) Datum Soil Dry sand Clay Silty clay Sand Dry Sand Clay Bulk Density (kN/m) 18 19 19.5 18.5 Silty Clay X? A k (m/s) 7 x 10- B 4 10-8 3 x 10-7 5 10- 1m Sand 1 (very very permeable) Sand 2 (very very permeable) 2.5 m 2 m 1.8 m