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~ • <br />• <br />• <br />• <br />• <br />• <br />• <br />• <br />• <br />• <br />~wr~~ <br />• <br />_ ,t <br />RUNOFF (loo Year) <br />• LAND USE = Residential <br />' INITIAL. STORM • 2 Year • <br />~~~ STORM s 100 Year <br />HISTORIC <br />°C ^ 0.60 (undeveloped) <br />l (FROM IDF CURVES) • a.z <br />A (ACRES) = a 2.7 s ~ . <br />~ ^ 1.2s <br />C,f (C) ^ (1.25) (0.60) = 0.75 1.0 ok <br />Q (cf:) ^ (C) (t) (A) (Cf) (RATIONAL PORMUI_A) •. <br />Q ^ (0.60) (3.2) (42.75) (1.25) <br />Q ^ 102.60 cfs <br />DEVELOPED <br />'(,(`, • 0.80 (Residential - 1.2 acre lots or larger) <br />^ 4.4 <br />A s 6.5 (After excavation in historic direction) <br />Cf • 1.25 . <br />~(C) a.eo (l.zs> = l.o l.o ok <br />Q ^ (.80) (4.4) (6.5) (1.25) <br />0 • 28.6 efs (In historic direction? <br />ou~sT conisu~T~n~o <br />~.y- <br />~~~s~.~.• ate.. M .• ~.~. .. ... ...~ ~. ,i+ <br /> <br />