You are to design a water treatment sludge evaporation pond for Solol$,$ Guatemala. The available data are shown on the following page. Precipitation has been left out since it is much greater than evapotranspiration. Determine the following:

a$)$ The area of the pond, $A_{\text{E}\text{v}\text{a}\text{p}\text{.}\text{P}\text{o}\text{n}\text{d}in}{m}^2($Column $7)..$

b$)$ Complete column $8,$ the monthly gain or loss of water in the pond.

c$)$ Complete column $9$ and determine the months with maximum and minimum volumes of water in the pond, $m^3.$

d$)$ Calculate the maximum depth of water $(m)$ in the pond, $d_{wSS}.$

e$)$ Determine the design water depth, $d_{\text{D}\text{e}\text{s}\text{i}\text{g}\text{n}},$ and the freeboard $($m$).$ Show a simple sketch of the pond $($plan & profile$).$