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Applied Space Structures Inc. Tank Assessment (2010) <br /> Tank requires anchoring. <br /> F <br /> eismic/Anchoring findings: The tank as design e and operated, and the <br /> ntainment area in which it is located are adequat anchored and are <br /> seismically sound. <br /> Initials: <br /> Leak Test: <br /> The tank has been in service for 19 years and shows no evidence of <br /> leakage. <br /> Hydrostatic Calculation: Applied Aerospace Structures <br /> Chrome Treatment Tank <br /> Tank wall thickness, in <br /> Tank Dia. In. 0.29 <br /> Depth of fluid in tank, ft 92.00 <br /> S.G. of Fluid 2.00 <br /> Pressure of fluid at bottom of tank, psi 1.00 <br /> hoop stress at bottom of shell, psi 0.87 <br /> Yield Stress HDPE , psi 137.47 <br /> Joint effeciency 3220.00 <br /> Effective allowable stress, psi 1.00 <br /> Safety Factor 3220.00 <br /> At Bottom of the Cone 23.42 <br /> Tank wall thickness, in <br /> Tank Dia. In. 0.29 <br /> Depth of fluid in tank, ft 1200. <br /> S.G. of Fluid 5.80 <br /> Pressure of fluid at bottom of tank, psi 1.00 <br /> hoop stress at bottom of shell, psi 2.51 <br /> Yield Stress HDPE , psi 52.00 <br /> joint effeciency 3220.00 <br /> effective allowable stress, psi 1.00 <br /> Safety Factor 3220.00 <br /> Tank is okay for hydrostatic. 61.92 <br /> Integrity testing findings: B sed on the above noted integrity test and the <br /> results obtained from that to the tank has sufficient integrity for its intended <br /> use. Initials: <br /> Strandberg Associates 1(866) 388-0404 (650) 329-8918 rwaterquynrwarerg <br /> c""' 20 <br />