Water Supply and Waste System

Do problems $3-2,3-7,3-12($use Pn$=0\mathrm{.}8,0\mathrm{.}6,0\mathrm{.}4,$ and $0\mathrm{.}1,$ design period, $n=1,5,10,25,$

$50,100),3-18($Assume a community of $100,000$ people, and water consumption of $150$

gpcd$)$ on the textbook.