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22 August 2011 AGE-NC Project No. 11-1934 Page 5 of 6 5.0. SEISMIC ANALYSIS A seismic analysis is provided to verify the AST will not tip or turn over during a seismic event. Seismic data used in the calculation is included as Table 5. The calculations are included as Appendix A. 5.1. SEISMIC CALCULATION The seismic analysis is calculated by using AST specifications and finding the horizontal shear, the over turn moment and the safety factor the AST will withstand during a seismic event. Seismic data used in the calculation is included as Table 5. The calculations are included as Appendix A. 5.1.1. AST Specifications The 480-gallon AST primary and secondary compartment materials of manufacture are discussed in Sections 2.1.3 and 3.1. The AST weighs of 1,001 pounds (Ibs) when empty is calculated, by extrapolation, using a similar use AST. Waste oil is temporarily stored within the tank. 480-gallons of waste oil weighs approximately 3,600 lbs. The total seismic load of the tank is calculated to be 1,001 Ib force (Ibf)when empty and 4,601 Ibf when full. 5.1.2. Seismic Calculation Results The pounds of horizontal shear are calculated at approximately 252 Ibf. The tank overturn moment is calculated at approximately -973 Ibf foot (ft). The safety factor was calculated at approximately 3.7. The tank, without additional components, is of sufficient weight to not spill during a potential seismic event for this area. Figure 3 shows the AST top and north east sides with dimensions. The seismic calculations are included as Appendix A. 5.2. SEISMIC ANCHORING AST seismic anchoring is not required based on seismic shear moment and over turn calculations, discussed in section 5.1. 5.3. INTEGRITY TEST FINDINGS Based on the calculations discussed in Section 5.1., the AST has sufficient integrity for its Advanced GeoEnvironmental,Inc.