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wc,'� 'G�1 �.i1 •L`�:� 1�7 R�:� C;vY] k:3+� � [;.�a � w�.t+ " �, .:. �,,d,,, .�...�. �....,. <br /> . RETENTION/DETENTION BASIN EQl1ATI0N5 <br /> � � !� YEAR DESIGN STORM YEAR DL• IGN S <br /> AREA ' TYPE OF OUTLET PEAK S70RAGE MAXIMUM St�RAG PEAK STORAGE MAXI <br /> +, , _ J�TIME �HINUTES) VOLUME �FT3/AC� 7IME �MINUTES) VOLU <br /> -; YS = <br /> Vs ` 2138 <br /> 1762 2820 T An noT T=-25+�-�0 3T+25 <br /> RENTON- ORIFICE WITH HEAD T°-ZS+� ��- - <br /> SEATTL.E � _. . _... . v 5 . , v S = <br /> ,I1175 Zgpp T 1425 3420 <br /> CONSTAN'T FLOW T= -25+ y Qo T+25 ' 6� QoT Y=-25+ �0 T+z <br /> � 5 = , V <br /> .. ,..._. .... T 25+ • 1875 3000 T _ 40 qoT T`"2 `'+ Zap4 . 3,T+2 <br /> ORIFICE WITH HEAD a, , Qo T+25 � � <br /> TACO!+IA ' ' ---. V S = ' v S ._ <br /> 3000 T 1463 <br /> CONS7AN7 FLOW T*-25+ 120� T+ZS • - 60 qoT T-'Z`'+ qo 37+0 <br /> ,i <br /> • .... . ._ . _. .. v _ , VS = <br /> 2255 5 2796 4329 <br /> � NORTH ORIFICE W[TH HEAD T__25+�--�p- T6z5T - 40 Q�T T=-25+�- -T+z <br /> � BEND �_' � -- . .. ...... _.._ . v S = • v s ° <br /> . CONSTANT FLOYI T�-25+ 15D3 36077 _ 6Q QoT 7=-p5+ 1004 4329 <br /> � qo 7+z5 Qo 7+z <br /> _. _- _.. . v <br /> ' ' 4076 6522 7 5013 • 802 <br /> SN09U11LMIE <br /> ORIFICE 1ViTH HEAD T=-25+ -�^ 7+25 -• 40 �oT T _Z5+ Qo T+ <br /> v � <br /> � PASS . . -'- 2718 ' ' 6522 T � 3342 .802 <br /> CONSTANT FLOW T=_25+� --�- T--��- - 60 qpT Ya-Z.S+ �-. � �, T+ <br /> • • . ` - 5 = V <br /> ._ ., ... ' v ' T=-25+ 3�75 '. . 492 <br /> ORIFICE WITH HEAD .Y=-25+ Z603 4164 1' _ qp QoT �— T+ <br /> Qo 7+Z5 . . . <br /> SKYKOMISH V <br /> . 1735 q164 T T, _25{ 205D qcsj <br /> CONSTANT FLOW T■ -25+�I -�--- �.-,�-� - 6U �nT il.. <br />