Determine the flow rate $($in $\frac{L}{m}in)$ of $25\mathrm{.}0\frac{g}{L}$ hydrofluoric acid $($HF$)$ solution to achieve the concentration of $3\mathrm{.}00m\frac{g}{L}$ of fluoride as $HF$ at the City of San Antonio's new drinking water treatment plant. Again, this plant's flow rate is $90$ MGD$.$ Assume that the concentration of fluoride as $HF$ in the influent is $0\mathrm{.}25m\frac{g}{L}$ & that $HF$ is not reactive in this case. $($Note: $1g=1,000mg,1m^3=1,000L)$