A grid$-$method leveling survey was conducted on a $400ft400ft$ grid with the label scheme shown below. Rod readings were taken at $100$ ft intervals and the raw field note data are included below. Complete the field book information to determine elevations at each point. Sketch the $1-$ft contour lines on an appropriate grid.

Field Note Data

$\backslash$table$[[$Station$,$BS$,$HI FS$/$Rod E$,$Elev$],[$BM$1,6\mathrm{.}7,,64\mathrm{.}5],[$A$1,,5\mathrm{.}6,],[$A$2,,6\mathrm{.}8,],[$A$3,,6\mathrm{.}7,],[$A$4,,8\mathrm{.}3,],[$A$5,,9,],[$B$1,,6,],[$B$2,,7\mathrm{.}8,],[$B$3,,8\mathrm{.}7,],[$B$4,,9\mathrm{.}7,],[$B$5,,9\mathrm{.}5,],[$C$1,,10\mathrm{.}2,],[$C$2,,7\mathrm{.}4,],[$C$3,,7,],[$C$4,,6\mathrm{.}1,],[$C$5,,7\mathrm{.}8,],[$D$1,,5\mathrm{.}7,],[$D$2,,6\mathrm{.}6,],[$D$3,,6\mathrm{.}1,],[$D$4,,3\mathrm{.}1,],[$D$5,,2\mathrm{.}9,],[$E$1,,3\mathrm{.}2,],[$E$2,,5\mathrm{.}9,],[$E$2,,4\mathrm{.}9,],[$E$4,,4,],[$E$4,,2\mathrm{.}7,],[$E$5,,,],[,,1\mathrm{.}7,]]$