$3-2.$ Rework Problem $3-1$ if groundwater is located $8$ ft

below the ground surface.

$3-1.$ A standard penetration test $($SPT$)$ was performed at

a depth of $10$ ft in sand of unit weight $120l\frac{b}{f}{t}^3.$ The

N $-$value was found to be $26.$ Determine the corrected

N $-$value by the two methods presented in this chapter.

Please answer $3-2$