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element to help evaluate soil capacity for water quality treatment. The CEC tests and organic <br /> content tests were performed by AMTest Laboratories. A summary of the test results Is provided <br /> in Table 2. <br /> Table.2.. .CEC and_Organic Content Analytical Results Summary' <br /> Sample Organic <br /> CEC <br /> Exploration Depth Soil Type (meq1 Content <br /> • (feet BGS) per 0 grams)) (percent) <br /> TP-5. 2.0 Silty Sand with 8.9 2.8 <br /> gravel- Fill <br /> 1. Suitability for Water Quality Treatment: CEC greater than 5 riled per 100 grams and organic content a minimum of <br /> 1.0 percent(DOE,2012) <br /> The full analytical laboratory test report of the CEC and organic content test results is presented <br /> in Appendix B. <br /> 7.0 DESIGN <br /> Based on our review of the proposed preliminary development plans and the results of our <br /> explorations and analyses, it is our opinion that the proposed development can be constructed at <br /> the site. Our recommendations are provided in the following sections. <br /> 7.1 SEISMIC DESIGN CRITERIA <br /> 7.1.1 IBC Parameters <br /> Based on our explorations and analysis, the following design parameters can be applied if the <br /> structures are designed using the applicable provisions of the 2015 IBC. The parameters in <br /> Table 2 should be used to compute seismic base shear forces (IBC, 2015). <br /> ' Table 2. IBC Seismic Design Parameters • <br /> Parameter Short Period 1 Second <br /> MCE Spectral Acceleration Ss= 1.422 g S, =0.540 g <br /> • Site Class • • D • <br /> Site Coefficient F,= 1.0 FF= 1.5 <br /> Adjusted Spectral Acceleration SMs= 1.422 g S. =0.810 g <br /> Design Spectral Response Acceleration Parameters S,,,=0.948 g So, =0.540 g <br /> G EO DESIGNY 4 NWHome-1-01:101618 <br />