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Page 3 The subject site is located in Southern California, which is a major earthquake-prone zone. Therefore, the owner(s) of this property should be aware of the seismic risks associated with being located in this zone. The Soil Site Class D Default can be used for the soils underlying the subject site. The Seismic Design Category D can be used for the site. The following seismic parameters obtained from the computer program https:// seismicmaps.org prepared by SEAOC [Structural Engineers Association Of California] in conjunction with California’s Office of Statewide Health Planning and Development [OSHPD] ) in accordance with ASCE7-16 can be used for the site. • Fa = 1.2 • Fv = null* • Mapped Spectral Accelerations Values: Ss = 1.342 (for the short period of 0.2 second) S1 = 0.477 (for the 1-second period) • Maximum Considered Earthquake Spectral Response Accelerations: SMs = FaSs = 1.61 (for the short period of 0.2 second) SM1 = FvS1 = null* (for the 1-second period) • Design Spectral Response Accelerations: SDs = 2/3 SMs = 1.073 (for the short period of 0.2 second) SD1 = 2/3 SM1 = null* (for the 1-second period) • PGA = 0.569 Please see ASCE 7-16, Section 11.4.8. Please see APPENDIX C for additional seismic parameters, as needed. Note: In general, the structural consultant of record for this project should review the seismic parameters provided in this report and the 2022 CBC to evaluate the seismic design. Final selection of design coefficients should be made by the structural consultant based on the local laws and ordinances, expected structure response, and the desired level of conservatism. The civil/structural design engineer should consult with the project geotechnical consultant, if additional geotechnical information is needed for structural seismic design. 2515 & 2517 N Cotter St5/1/2025