DRAFT <br />ASCE 7-16. The 0.2- and 1.0-second MCER spectral values (Sms and SM,) are estimated to <br />be 0.86 g and 0.63 g, respectively, while the corresponding design response spectral values <br />(Sos and Sol) are estimated to be 0.57 g and 0.42 g, respectively. The resulting two-period <br />MCER and design response spectra were developed in accordance with the guidelines <br />provided in Section 11.4.6 of ASCE 7-16, and are summarized in Appendix B. <br />In addition to the MCER and design hazard levels required by ASCE 7-16, we understand <br />the design team will also be evaluating seismic performance of the new structures based <br />on site-specific horizontal and vertical response spectra for a Service Level Earthquake <br />(SLE). The SLE has been defined by the structural engineer as a ground motion with a 50% <br />probability of exceedance in 30-years (i.e., return period of approximately 43 years) and <br />was evaluated based on the 2014 USGS National Seismic Hazard Maps (NSHMs). Similar <br />to the recommended values provided for the MCER hazard level above, the ratio of vertical- <br />to-horizontal ground motions for the SLE hazard level was estimated using published <br />relationships. Table 5-2 below summarizes the SLE horizontal and vertical response <br />spectral values. Please see Appendix B for further discussion regarding the development <br />of recommended response spectra for the SLE hazard level. <br />Table S-2: RECOMMENDED SLE RESPONSE SPECTRAL VALUES, 2% DAMPING <br />PGA 0.02 0.01 <br />0.10 0.03 0.02 <br />1.00 0.04 0.02 <br />2.00 0.02 0.01 <br />3.00 0.01 0.01 <br />4.00 0.01 0.00 <br />5.00 0.00 0.00 <br />5.7.2 Nonlinear Response History Analysis (RHA) <br />We understand the project structural engineers will use a numerical modeling program to <br />analyze soil-structure interactions and evaluate the seismic demand on the structure for <br />several input ground motions. The selection and scaling of the input ground motions were <br />completed in accordance with Chapter 16 of ASCE 7-16. The ground-motion records for <br />use in the RHA were selected from recorded seismic events having magnitudes, fault <br />GRI #6497-A - 2.MO Indoor Football Practice Facility Page 21 <br />August 26, 2021 <br />