Extracted text: A loose, natural sand deposit has a saturated unit weight of 19.3 kN/m3 and an angle of internal friction of 29°. The water table is the ground surface. The total at rest lateral earth pressure at a depth of 10 m is most nearly: 1. 80 kPa 2. 147 kPa 3. 217 kPa 247 kPa 4.