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603284-001 <br />The computer program EZ-FRISK incorporated the DHSA computation when <br />performing the PSHA in the section above. <br />Code-Specified Seismic Design Parameters <br />The seismic design parameters were computed as determined by Chapter 1613A of the <br />2010 CBC for Site Class D and E. These values are used to process the site-specific <br />design response spectrum to ensure the design response spectrum and MCE response <br />spectrum meets minimum requirements. The Java program Seismic Hazard Curves, <br />Response Parameters and Design Parameters Version 5.1.0 published by the United <br />States Geological Survey (USGS) was used to determine the code-specified seismic <br />design parameters.The following tables provide the code-based parameters <br />determined from the program: <br />2010 CBC Based Seismic Design Parameters (Mapped Values) <br />Categorization/Coefficient Design Value <br />Site Latitude 33.76184N <br />Site Longitude -117.90095W <br />Site Class D <br />Mapped spectral response acceleration parameter at short 1.39period, SS <br />Mapped spectral response acceleration parameter at a 0.50period of 1 sec, Si <br />Short Period (0.2 sec) Site Coefficient, Fa 1.0 <br />Long Period (1.0 sec) Site Coefficient, Fv 1.5 <br />Adjusted spectral response acceleration parameter at short 1.39period, SMS <br />Adjusted spectral response acceleration parameter at a 0.74period of 1 sec, SM1 <br />Design spectral response acceleration parameter at short 0.93period, SDS <br />Design spectral response acceleration parameter at a 0.50period of 1 sec, Soi <br />D-4