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Dr. 14arn Sharma. P.E., G.E. <br />22 January 2001 <br />Page 5 <br />histories that fill the envelope between the median and 840.percentile response spectra <br />for the design event. <br />GeoSyrrtec developed median and 84*' percentile aeceleeat'ValleyOn a <br />sPonsc <br />spectra for both the Mw 6.4 IPE and Mw 6.7 MCF events on the GI blind <br />thrust system and the WEJMCE Mw 7.9 event,on the San Andreas fault system usrng <br />the Abrahamson and Silva [1997] . attenuation'�model. These acceleration response <br />spectra, referred to herein as .the ■/target spectra, are shown in Figure 2 for the Ma 6.7 <br />MCE event on the Great Valley blind tbrust system, in Figaro 3 for the M-, 6.4 NOE <br />event on the Great Valley blind thrust system, and in Figure 4 for the Mw 7.9 WENCE <br />event on the San Areas fault systwm. <br />Based on the above oudined screening ctitesia, GeoSY,uteG solecW the <br />following four accelerograms for design considerations at the Forward Landfill site: <br />the 270 -degree component of the Saratoga Aloha Avenue record <br />from the Mw 6.9 Loma Prieta earthquake; <br />a Hills record frm the <br />the 315Y J,. • ■ t. • t ■.U, 6.9 Lorna Prieta earthquake; <br />P <br />rieu /. • _ • �. <br />recoid from the M, 6.9 Loma <br />ud <br />tIL, Magnitude isynfttir <br />AndreasIdriss. 1 [19691 to simulate a distant IgZc-=gWtude event on the San <br />canyon Road records from the Mw69 Lzma. Prieta. egthquakt were seleded to <br />and Mw 6.7 MCE events ca the Great Valley blind thmst <br />reprcseptthe <br />ht <br />>'and MCE and dumt'on deficiencY in both the NI <br />syst <br />AAEL <br />g•d 90ZL-109-OTS 2uxj@au12U3 suns -1 Wyer;:s loop- SZ Pew <br />ST/99 39Vd S31t+I3OSSV DI90-1039 Z6L8c96606 `9:ZT T90Z/T6/L0 <br />