QUESTION $7$

a$)$ Data from three wells located within a few metres of each other is shown in the figure below is as follows:

$\backslash$table$[[,,$A$,$B$,$C$,],[$Elevation at land surface $($m$),102,102,102,],[$Depth of monitoring well $($ m $),52,40,26,],[$Depth to water $(m$ below surface$),27,25,21,],[$For each well, determine,,A$,B,],[($i$),$The hydraulic head, $h,($Ans $,75$ m$,77$ m$,81$ m$],[($ii$),$The pressure head, $h_p,($tus$),25$ m$,15$ m$,$a$)??],[($iii$),$The elevation head, $z,($tus$),50$ m$,62$ m$,?$