$8-1.$ A treatment plant being designed for Cynusoidal City requires an equalization basin to even out flow and BOD variations. The average daily flow is $0\mathrm{.}400\frac{m^3}{s}.$ The following flows and $BO{D}_5$ have been found to be typical of the average variation over a day. What size equalization basin, in cubic meters, is required to provide for a uniform outflow equal to the average daily flow? Assume the flows are hourly averages.

$\backslash$table$[[$Time$,$Flow, $\frac{m^3}{s},$BOD ${?}_5,m\frac{g}{L},$Time,Flow, $\frac{m^3}{s},$BOD ${?}_5,m\frac{g}{L}$