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, Given: A 1.50 ac:e site located wit.� the Glenvoad C:eek <br /> drainage basin. The slone af over2and flow is 2;, The <br /> e�isting q:ound cover is voods/Eorest. Ti�e pr000sed land <br /> use is a five lot single family short subdivision. An <br /> interior st�eet vith apnroximately 17 , 00o sauare feet of <br /> impe`-vious surface kill be constructed. <br /> Solution: From table 1, the allowable release rate is .002 cfs <br /> Per ac=e or .003 cPs for the entire site. This is less <br /> than .l� c:s, so a releasa rate of .0867 cfs per acre is <br /> used to dete�ine the detention requirements. The area <br /> of impervious surface is 13 , 000 + (5) (2900) or 27, 000 <br /> square feet. There=o:e, there will be .71 acres of <br /> impe:-vious surface and 0.88 acres oi lawn or landscaoing. <br /> Fx�om table 7 the detenticn recuire�ent is (1119) (,g3� -� <br /> (4834) ( . 62) or 3982 c�. ' <br /> ��• <br /> � . . . � '...�-i <br /> . � ��t:-'��S <br /> . .. �':,'�•'y <br /> E:: .'.r� <br /> ��� <br /> � i'.�F� <br /> .•,. <br /> F Y ^ <br /> rY <br /> . '',`�, ,,±. <br /> . 0.1 <br />