Use the information in the table below for wastewater effluent and the river that receives it$.$ pts; $15,5)$

a$.$ The state standard for requires that the minimum DO in the river is $5\mathrm{.}00m\frac{g}{L}.$ What critical DO expected? How does this compare to the standard?

b$.$ The municipality responsible for this effluent is concerned about effects on water quality in the river at a popular recreation site that is $3\mathrm{.}5km$ downstream. What DO is expected there?

$\backslash$table$[[$Parameter$,$Wastewater,River$],[$Volumetric flow rate $($m$^(3)/$s$),0\mathrm{.}255,0\mathrm{.}942],[$BOD$\_($u$)($mg$/$L$),7\mathrm{.}42,4\mathrm{.}30],[$DO $($mg$/$L$),2\mathrm{.}20,6\mathrm{.}29],[$k$\_($d$)($d$^(-1)),$N$/$A$,0\mathrm{.}220],[$k$\_($r$)($d$^(-1)),$N$/$A$,0\mathrm{.}420],[$DO$\_($s$)($mg$/$L$),$N$/$A$,7\mathrm{.}77],[$Velocity $($m$/$s$)($after wastewater addition$),$N$/$A$,0\mathrm{.}720]$