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i <br /> Hazardous Waste Tank System July <br /> Written Assessment per CCR Title 22 j <br /> i Tracy Toyota, 2895 Naglee Road,Tracy, CA 905304 2014 <br /> Ultrasonic Thickness Gauge Measurements <br /> UTG Thickness Measurements <br /> f <br /> I UTG Measurement ' <br /> The Survey Name: TTOYW01 —Waste Oil Tank 1 <br /> Data Point ID Thickness Units <br /> 01 0.110 IN <br /> 02 0.110 IN <br /> 03 0.110 IN <br /> 04 0.110 IN <br /> 05 0.110 IN <br /> 06 0.110 IN <br /> 07 0.110 IN <br /> 08 0.110 IN <br /> 09 0.110 IN <br /> 10 0.110 IN <br /> Average 0.110 IN <br /> Std. Dev. 0.000 IN <br /> Hydrostatic Calculation <br /> Hydrostatic Calculation-Waste Oil Tank <br /> Rectangular <br /> Material of Construction Steel <br /> Yield Strength, psi 30000.00 <br /> Design Yield Strength, psi 25000.00 <br /> Weld Efficiency 0.70 <br /> Effective Yield Strength, psi 17500.00 <br /> Depth of Liquid, in 54.00 <br /> Area of wetted wall, ft2 17.25 <br /> S.G Contents 0.95 <br /> Average Pressure, Ib/ft2 133.38 <br /> Resultant Force, Ibs. 2300.81 <br /> Location of Resultant Force, from bottom, in 18.00 <br /> Moment ftlbf of R 3451.21 <br /> Resisting Moment at top of tank, B 3451.21 <br /> Resisting Moment arm at B, ft 5.20 <br /> Resisting Force at B 663.69 <br /> Resisting Force at bottom of tank at A 1637.11 <br /> Area of tank bottom under tension, in2 5.17 <br /> Tensile stress at tank wall bottom corner, psi 316.66 <br /> Effective Yield Strength > Applied Tensile Stress <br /> Factor of Safety 55.27 <br /> Strandberg Associates 1(866) 388-0404 rwater u rwater�a .Com 12 <br /> i <br /> d <br />