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�� <br /> � ( � <br /> �WSTRUCTURAL <br /> ENGINEERS n <br /> Engineers Northweat Inc.,P.S. p� <br /> � [ (o �-Gyz <br /> AVTECH T. I . <br /> 6500 Merrill Creek Parkway <br /> Everett, WA 98203 <br /> STRUCTURAL CALCULATIONS <br /> FOR <br /> EXTERIOR TANK SLAB <br /> P�=v,Wq�j <br /> O��pr ��, A� � <br /> E'+ y �. • � � <br /> �� ,`� C � <br /> Q � 21598 <br /> '�S, S77tU • <br /> `S��NAL� \�� <br /> i,._._ <br /> O q�.�,1 <br /> CpDF; 2009 International Building Code (IBC) <br /> WIND: 85 mph (3 Second Gust), Exposure B <br /> Seismic: Ss = 1.259 <br /> S� = 0.449 <br /> SNOW: 25 psf <br /> September 27, 2011 <br /> ENW Project No. 96-084008-4 <br /> . . . . . . . . . . . . . . . . <br /> • �y W�bwn Av�nus NE.&wMM,WA 9E115 <br /> . 208.525.7SE0.hx 208.622.689E <br /> vrww.�wdN.eam <br />