Consider the watershed data presented below.

$\backslash$table$[[$Feature$,$Soil Features,Area Acreage$],[$Lawn$,$ Heavy Soil,$2\mathrm{.}1\%$ slope,$75],[\backslash$table$[[$Suburban Residences$-0\mathrm{.}33],[$acres each$]],5\mathrm{.}5\%$ slope,$50],[$Paved Parking Lots,$1\mathrm{.}0\%$ slope,$20],[$Meadow$,12\mathrm{.}1\%$ slope,$15],[$Forest$,3\mathrm{.}9\%$ slope,$20],[$Commercial Businesses,$0\mathrm{.}0\%$ slope,$20]]$

a$.$ Determine the peak runoff rate this area will experience during a rain event that releases a total of $1\mathrm{.}5$ inches of rain over a three hour period. $($Table $4\mathrm{.}18$ included below may be useful$)$

b$.$ Rainfall capture and reuse is an increasingly popular Low Impact Design $($LID$)$ strategy that collects rainfall from rooftops for future use. Determine if rainfall capture$-$and$-$reuse is a feasible option for this site that experiences. To be viable, peak runoff volumes must be greater than $15cfs.($Table $4\mathrm{.}18$ included below may be useful$)$

c$.$ The maximum allowable amount of nitrogen that may leave the site as a result of fertilizer use is $150lb\frac{s}{?}$ year. In $2023,$ fertilizers were used in this area at the following rates:

Commercial: $0l\frac{b}{?}$ acre$-$year

Lawn: $10l\frac{b}{?}$ acre$-$year

Residential: $5l\frac{b}{?}$ acre$-$year

Was the limit exceeded in $2023?$ What are the environmental impacts of $N$ pollution?

Table $4\mathrm{.}18$: Values of Runoff Coefficient $C$ for Use in Rational Method With Return Intervals of $10$ Years or

$\backslash$table$[[$Less$],[$Cover$,$Flat,Rolling $2\%$ to $10\%,$Hilly $>10\%$