Problem #$1[20$ points$]$

A series of SPT tests were conducted and the $N_{60}$ values $($SPT values corrected for $60\%$ efficiency$)$ were reported as shown below. The predicted earthquake magnitude is $8\mathrm{.}25$ with a peak horizontal ground acceleration of $0\mathrm{.}3$ g $.$ The soil above the groundwater table can be assumed to have a unit weight of $95$ pcf$,$ while that below the groundwater table is approximately $105$ pcf $.$ The groundwater table is located $15$ ft below the ground surface. Identify the range$($s$)$ over which soil liquefaction is possible.

Neatly tabulate only the necessary information. Include information regarding the equations or figures outside the table.

$\backslash$table$[[$Serial #$,$Depth, $z(ft),N_{60}$