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Hazardous Waste Tank System July <br /> Written Assessment per CCR Title 22 <br /> Applied Aerospace Structures, Inc., Stockton, CA 95206 2017 <br /> Tank Hydrostatic Strength Calculation <br /> Hydrostatic Calculation: Applied Aerospace Structures <br /> Tank 3, Recirculation Tank <br /> Tank wall thickness, in 0.32 <br /> Tank Dia. In. 20.00 <br /> Depth of fluid in tank, ft. 3.00 <br /> S.G. of Fluid 1.05 <br /> Pressure of fluid at bottom of tank, psi 1.37 <br /> hoop stress at bottom of shell, psi 42.66 <br /> Yield Stress LDPE, psi 2000.00 <br /> joint efficiency 1.00 <br /> effective allowable stress, psi 2000.00 <br /> Safety Factor 46.89 <br /> Tank is Okay for Hydrostatic <br /> • The foundation was free of cracks, spalling, settling or other defects that <br /> would affect its integrity. <br /> Integrity testing fin ings: Based on the above noted integrity test and the results <br /> obtained from th st, the tank has sufficient integrity for its intended use. <br /> Initials: <br /> Lr <br /> r AUG 022017 <br /> ENV I;ONMI!Z-N-EAL HEALTH <br /> DEPART M ANT <br /> Strandberg Associates 1(866) 388-0404 rwaterguyCcDrwaterguy.com 34 <br />