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Tracy Mazda Waste Anti, .,;eze Tank and Waste Oil Assessment <br /> Written Assessment per CCR Title 22 <br /> Tank Integrity: Tank is in service with no evidence of leaks. Secondary <br /> containment is dry. Tank wall thickness of 0.19 inches exceeds UL standard of <br /> 0.092 inches. <br /> Tracy Mazda <br /> Hydrostatic Calculation <br /> Waste Oil Tank <br /> Tank,Waste Oil Rectangular, Horizontal <br /> Material of Construction Steel <br /> Yield Strength, psi 36000.00 <br /> Design Tensile Strength, psi 33000.00 <br /> Depth of Oil, in. 58.05 <br /> Area of wetted wall, ft2 24.59 <br /> S.G Contents 0.92 <br /> Average Pressure, Ib/ft2 138.86 <br /> Resultant Force, lbs 3414.55 <br /> Location of Resultant Force, from bottom, in 19.35 <br /> Moment, ftlbf of R 5505.96 <br /> Resisting Moment at top of tank, B 5505.96 <br /> Resisting Moment arm at B, ft 3.76 <br /> Resisting Force at B, Ibf 1464.35 <br /> Resisting Force at bottom of tank at A, Ibf 1950.20 <br /> Area of tank bottom under tension, int 11.78 <br /> Tensile stress at tank wall bottom corner, psi 165.55 <br /> Design Tensile Strength >Applied Tensile Strength <br /> Factor of Safety 199.33 <br /> Buckling <br /> b 61.00 <br /> d 32.00 <br /> b1 60.62 <br /> d1 31.62 <br /> Ic 6865.02 <br /> F, lbs 4374.00 <br /> Moment Arm 29.03 <br /> Mp, in Ibf 126955.35 <br /> buckling stress, psi 295.89 <br /> design stress, psi 33000.00 <br /> design stress > applied stress, Tank will not buckle <br /> during quake <br /> Factor of Safety 111.53 <br /> Figure 21, Waste Oil Hydrostatic Calculation <br /> Strandberg Associates 1(866) 388-0404 (650) 329-8918 rwaterquyC2rwaterquy com 22 <br />