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Hazardous Waste Tank System <br />Preliminary Written Assessment per CCR Title 22 <br />Chase Chevrolet quick Lube Stockton, CA 95212 <br />Hydrostatic Calculation <br />E <br />December <br />2013 <br />Material of Construction Steel <br />Yield Strength, psi <br />30000.00 <br />Design Yield Strength, psi <br />25000.00 <br />Weld Efficiency <br />0.70 <br />Effective Yield Strength, psi <br />17500.00 <br />Depth of Liquid, in <br />Area of wetted wall, ft2 <br />50,88 <br />S.G Contents <br />0.95 <br />Average Pressure, lb./ft2 <br />122.27 <br />Resultant Force, lbs <br />6220.23 <br />Location of Resultant Force, from bottom, in <br />16.50 <br />Moment, ftlbf of R <br />8552.82 <br />Resisting Moment at to of tank, B <br />8552.82 <br />Resisting Moment arm at B, ft. <br />4.58 <br />Resisting Force at B <br />1866.07 <br />Resisting Force at bottom of :'tank"at A <br />4354.16 <br />Area of tank bottom under tension, in2 <br />22.20 <br />Tensile stress at tank wall bottom corner, psi <br />196.13 <br />Effective Yield;,:, Strength >Applied Tensile Stress <br />Factor of Safety <br />89.22 <br />Strandberg Associates 1(866) 388-0404 rwatgnuyLbrwqLeMuy�.coni 14 <br />