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Worksheet 6a: Detention basin storage, <br /> peak outflow discharge (qo) known <br /> � Project '�Ji ' �� � '),% ' By f Date <br /> Location Checked Date <br /> Circle one: (Present Developed <br /> I 1 I I <br /> I � I <br /> I I III <br /> I I I <br /> I <br /> �1lilli I fill it I f , <br /> O , I <br /> Q , i l <br /> 0 I , <br /> > ( 1 1 1 <br /> d I I I I I I I <br /> I ( I I I <br /> • I ..I 1. �- I I I I t I I <br /> Detention basin storage <br /> f t _ Vs <br /> 1. Data: `W 6. ................ <br /> Drainage area ....... Am ' 00 0 mil Vr q <br /> o <br /> Rainfall distribution (Use with figure 6-1) <br /> 4 <br /> type (I, IA, II, III) ,� i <br /> 7. Runoff, Q ...... in ' <br /> 1st tad (From worksheet 2) <br /> sta a stage <br /> 8. Runoff volume, <br /> Vr .......... ae—ft t <br /> 2. Frequency ...... Tr (Vr Q�53.33) <br /> 3. Peak inflow dis— f 9. Storage volume, <br /> charge, qi ••.. cfs r i] Vs .......... ac—ft <br /> (From worksheet 4 or 5b) V <br /> 1/ (Vs . Vr(�s)) <br /> 4. Peak outflow dis— r l <br /> charge, qo .... cf s '( • <br /> 10. Maximum stage, Emax <br /> (From plot) <br /> ° <br /> 5. Compute q ........ <br /> i <br /> 1/ 2nd stage qo includes 1st stage qo. <br /> (210-VI-TR-56, Second Ed., June 1986) D-7 <br />