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FEQ-14-96 15:21 FROM=TREPANI�R ENGINEERING ID: 206 259 5558 PACE 3/7 <br /> • • • llItAINAGE CALiIULAT10N5 <br /> � ' WASHINGTON FEDSRAI, SAVTN'GS BLDG. <br /> � Job 95-063 <br /> Page 2 <br /> ORIFICE SI2ING CAI�CU�ATION:; <br /> Allowable release rate = 0.29 c.f.s. <br /> Q, � C a 2 gH (C = 0.62) <br /> 0.29 = (0.62) a 2 (3*�2.2) (Z.0) <br /> a = 0.041 ft2 = 5.935 in2 <br /> a = �t(dZ/4) = 5.935 inZ <br /> d = 2.749 inches � IIse d = 2�s inches <br /> // � <br /> 1� x , .93 �,.,'�ti R ti«.ar /.s ' <br /> \�I G�x� \G;� hd � is /.s�f <br />� � p��" � j' <br />, <br /> '; �Q ss� Z r�`""� <br /> `. i fo -k ' Q <br />' � � � �::�� �� <br /> � � �� � � <br /> i <br /> � I � ; <br /> � , �� <br /> I J <br /> I <br />�'�' � I ��. . <br /> I <br /> i � <br />' � <br /> i � <br /> j <br /> i <br />