Question $3.$ You are working as a stormwater design engineer. Your client requires a guaranteed $70\%$ reduction in total phosphorus from your wet basin design. Describe the relevant basin design parameters based on the lake eutrophication empirical model and determine the range of possible design values given the limiting conditions of CTP $=3\mathrm{.}0$ mg$/$L with a fraction of Cortho$/$CTP $=0\mathrm{.}9?$ Does the model provide a reasonable solution under these conditions and if not, which important variable in the model does not provide sufficient sensitivity to model output? What details on the model should you investigate before applying an empirical model such as this one?Question $3.$ You are working as a stormwater design engineer. Your client requires a guaranteed $70\%$

reduction in total phosphorus from your wet basin design. Describe the relevant basin design parameters

based on the lake eutrophication empirical model and determine the range of possible design values given

the limiting conditions of $C_{TP}=3\mathrm{.}0m\frac{g}{L}$ with a fraction of $\frac{C_{\text{o}\text{r}\text{t}\text{h}\text{o}}}{C_{TP}}=0\mathrm{.}9?$ Does the model provide a

reasonable solution under these conditions and if not, which important variable in the model does not

provide sufficient sensitivity to model output? What details on the model should you investigate before

applying an empirical model such as this one?