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Mr. Amir Houriani <br />Project No. 32-6235-00 <br />1601-1607N. Bristol Street <br />August 29, 2022 <br />The spectral response acceleration parameters presented in the following <br />the U.S. Seismic Design Map Website (https://seismicmaps.org), may be use <br />2019 CBC Seismic Desian Parameters (Site Class <br />CITY OF SANTA ANA <br />Planning and Building Agency <br />PageApproved <br />FOR PERMIT ISSUANCE <br />Master ID: <br />ined from <br />Site Location (Latitude, Longitude): (33.7588 N, 118.8847 W) <br />Spectral Period, <br />T <br />MCER Ground <br />Site -Modified <br />Seismic Design <br />(Seconds) <br />Motion (g) <br />Spectral Acceleration (g) <br />Acceleration (g) <br />0.2 <br />Ss = 1.314 <br />Fa = 1.0 <br />SMs = 1.314 <br />Sos = 0.876 <br />1.0 <br />S1 = 0.468 <br />*Fv = 1.832 <br />SMi = 0.857 <br />Sol = 0.572 <br />Site Modified Peak Ground Acceleration PGAm = 0.612g <br />*Per Section 11.4.8 of ASCE 7-16, a Long Period Site Coefficient (Fv) of 1.7 may be utilized for <br />structures on Site Class D provided the Seismic Response Coefficient Cs is determined by Eq. <br />(12.8-2) for values of T <_ 1.5 Ts, and taken as 1.5 times the value computed in accordance with <br />Eq. (12.8-3) for TL >_ T > 1.5 Ts, or as 1.5 times the value computed in accordance with Eq. 37.5 <br />(12.8-4) for T > TL where: <br />T = the fundamental period of the building <br />Ts = Soi/SDS <br />TL = long -period transition period <br />Present building codes and construction practices, and the recommendations presented in this <br />report, are intended to minimize structural damage to buildings and prevent loss of life as a result <br />of a moderate or a major earthquake; they are not intended to totally prevent damage to <br />structures, graded slopes and natural hillsides. While it may be possible to design structures and <br />graded slopes to withstand strong ground motion, the construction costs associated with such <br />designs are usually prohibitive, and the design restrictions may be severely limiting. Earthquake <br />insurance is often the only economically feasible form of protection for your property against <br />major earthquake damage. Damage to sidewalks, steps, decks, patios and similar exterior <br />improvements can be expected as these are not normally controlled by the Building Code. <br />LABORATORY TESTING <br />Laboratory tests were conducted on representative soil samples for the purpose of classification and <br />evaluation of pertinent engineering properties. The quantity and selection of tests were based on the <br />geotechnical requirements of the project. <br />—��0— A.G.I. Geotechnical, Inc. • 16555 Sherman Way, Suite A • Van Nuys, CA 91406 <br />Office: (818)785-5244 • Facsimile: (818)785-6251 <br />