Use WinSLAMM to determine the trapping efficiency $($for TSS$)$ of the detention pond. Provide the following information:

a$.$ Parameter setups in model

b$.$ Model inputs

c$.$ Model outputs

Detention pond:

Developer wants to develop a $4$ acre site in Madison, WI$.$ Details of the site are as follows:

Existing Land UseLand use is corn straight row crops in good condition

HSG B

$100$ ft sheet flow with slope $0\mathrm{.}4\%$

$1000$ ft shallow concentrated flow with slope $2\%$

No channel flow

Proposed Site:

$100\%$ impervious surfaces

HSG B

$50$ ft of sheet flow with slope $0\mathrm{.}4\%$

$1000$ ft of shallow concentrated flow with slope $2\%$

$50$ feet of channel flow in a $2$ wide by $2$ high concrete pipe

$50$ feet at slope $1\%($assume pipe is flowing full$)$

Retention pond area cannot exceed $0\mathrm{.}5$ acres Outlet type of pond is discretion of designer.