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Design Storm Peak Storage Time Maximum Storage Volume (Ft3/AC) <br /> (Minutes) <br /> 10 YR T = -25 + 2254 V = 3607T - 40 QoT <br /> �o s T+f5 <br /> 25 YR T =-25 + 2706 Vs = 4329T - 40 QoT <br /> 0 'I+f3 <br /> 50 YR T _20 + 2160 V = 4329T - 40 QoT <br /> Qo s T+20 <br /> 100 YR T =-20 + 2430 Vs = 4860T - 40 QoT <br /> 0 a <br /> How to use table: <br /> Example: Qallow = 0.9 cfs <br /> Design Storm = 25 Yr. <br /> A = 10 acres <br /> Cdev = 0.9 <br /> Qo = ( allow) 0.9 = 0.1 <br /> A Cde1 10 (.9T <br /> T = -25+ 2706 = 135.5 <br /> 0.1 <br /> Vs = 4329 (139.5) - 40(0.1)(139.5) _ <br /> 139.5 + 25 <br /> Vs = 3113 cf/acre impervious <br /> r46le- a. <br />