A cylinder was carefully pushed into the soil without compressing or disturbing the soil. The cross-sectional area of the cylinder was 0.25 square feet. The weight of soil within the cylinder was 21 pounds when it was dried. The weight of the soil before drying was 25.2 pounds. Determine moisture content and apparent specific gravity of this soil.
Soil samples indicate an average moisture and apparent specific gravity in the soil as follows.
Find the total depth of water held in the first 4 feet of soil.