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Stockton Dodge, Waste Oil & Waste Antifreeze Tank Assessment (2010) <br /> Seismic/Anchoring findings: The tank as designed ang operated, and the <br /> containment area in which it is located are adequately a hored and are <br /> seismically sound. Initials: <br /> Leak Test: <br /> The tank has been in service for 6 years and shows no evidence of <br /> leakage. <br /> Stockton Dodge Waste Oil Tank <br /> Hydrostatic Calculation <br /> Rectangular, Horizontal, Closed Top <br /> Material of Construction Steel <br /> Yield Strength, psi 36000.00 <br /> Design Yield Strength, psi 33000.00 <br /> Weld Efficiency 0.85 <br /> Effecti\,e Yield Strength, psi 28050.00 <br /> Depth of Waste Oil 48.00 <br /> Area of wetted wall, ft2 23.30 <br /> S.G Contents 0.95 <br /> Average Pressure, Ib/ft2 118.56 <br /> Resultant Force, lbs 2762.45 <br /> Location of Resultant Force, from bottom, in 16.00 <br /> Moment, ftlbf of R 3683.26 <br /> Resisting Moment at top of tank, B 3683.26 <br /> Resisting Moment arm at B, ft 2.67 <br /> Resisting Force at B 1381.22 <br /> Resisting Force at bottom of tank at A 1381.22 <br /> Area of tank bottom under tension, int 9.80 <br /> Tensile stress at tank wall bottom corner, psi 140.94 <br /> Design Yield Strength > Applied Tensile Stress <br /> Factor of Safety 234.14 <br /> Strandberg Associates 1(866) 388-0404 (650) 329-8918 rwaterquy(c�rwaterguy.corn 16 <br />