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' IJ� kYw7� tuYilf+� t�:.iil tJi.:� L1..iii 4�..a Yw.r _' Ui,.�. � h...r. V.... �.r..� ...•• a..-- <br /> \ . <br /> • RETENTION/DETENTION BASIN EQUATIONS . � � <br /> ` . � YEAR DESIGN STORM YEAR DL" 1GN STORM y' <br /> PE OF OUTLET pEAK STORAGE MAXIMUM STORAG PEAK STORAGE MAXI�IUM STORPG' � <br /> .'_'.. w ,J^TIME �HINUTES) VOLUME �FT3/AC� TIME GMINUTES) VOLUME �F73/AC� j <br /> � y � y - <br /> FICE WITH HEAD T=-25+ 1762 ZB2� T T-_25+ 2138 3420 T <br /> `�p T�- - 40 QoT . .-�o T+25 - �0 Qo ' <br /> ..... �.•.. . �5 f • �S � � <br /> ONSTANT FLOW Ts -25+�I � QoS 2T+25T _ 69 QoT 14� 3420 7 _ 60 Q T I <br /> T=-25+ I <br /> T+z5 0 <br /> .. .._._.. . �5 , � YS = <br /> F10E WITN HEAD T'"25+ � QoS 3000 T _ 40 QOT T=-25+ zqo4 ' 3510 T _ q� r�oT <br /> , . T+25 ' ;T+25 <br /> --•— VS z , VS _ i <br /> ONSTANT FLOW T•-25+ 1250 3000 T _ 60 T T-_Z5+ 1463 , 3510 T _ 60 T <br /> ,i -� T+25 � �o Qo T+2�. . �o <br /> FICE WITH HEAD T,_25+ Z�pS 36077 _ 40 Q T Ta_ z�06 4329 T ' <br /> . T+25 0 25+ �o T+25 - 40 Q�T <br /> _. . .. ...... _.._ vs - VS _ <br /> ONSTANT FL041 1503 3607T .,�10�04 4329 T <br /> T'-25+ Qo T+25 ' 6� QoT T=-25+ y qp . T+25 - 60 Q�T <br /> . _. __ _...- _4 0 7 6 y s r----- �'s � <br /> IF10E '.ViTH HEAD T=-25+ Qo 6T+z5T _� q� �oT T=-25+� 5no3 ' BT+�ST ; _ 40 qaT <br /> • • i <br /> , . VS _ �S , _ ; -- <br /> CONSTANT FLOW IT=-25+� Z--�aB � 5T� . 60 qoT 7= -2,5+ 3—� � � �80�? _ �n �e1 <br /> . i <br /> ' _ ... ._ . .�. ' <br /> ��Z603 5 ^ " <br /> IF10E WITH HEAD T=^�5+ 4164 T � �_ � 3n75 4920 T <br /> � 40 _ T+25 - 40 QoT T 25+�— T+25 ' QO l�T <br /> _ .... ..— ._ vs _ � y. _ <br /> s <br /> CONSTANT FLOW T• -25+'� 17� a1-,,�,Q�T- - 60 QnT 7= -25+ 205� 4920.rT _ G� �1�T <br />