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City of Santa Ana Emergency Operations Plan <br />Part / Basic Plan <br />Figure 107 Southern California Water Resources Vulnerability to Earthquakes <br />�1Id <br />San <br />Bernardino <br />t <br />v \ <br />Los \ <br />v1. lei <br />ts <br />\ w \Orange 40 <br />Pumping Plant \_ - � .. 30--- <br />Los Angeles Aqueduct <br />= California Aqueduct <br />Colorado River Aqueduct <br />San Andreas <br />— QuaternaryFaulis � <br />Shake Hazard \ San \ <br />Diego <br />20 <br />l <br />25 Al10 <br />30 11S1HZ050 \ `` , <br />1.0 second Spectral Acceleration with a <br />40 10%Probability of Exceedance In 50 years ,, <br />60 (Source: OSGS - OFR-97 0131) r _;Is r <br />t <br />60 \ y 1 <br />100 ` ^ \R <br />0 10 30 3o Mile <br />Cal Poly, San Luis Obispo :iowces: Vain, 1. exawrn newuw^m,xlienl , ......... <br />City and Regional Planning <br />June 2013 Created by: C. Schuldt (Anne. 3-SAcal Water Ep Vuln mvdl <br />A major rupture of the southern San Andreas Fault could span more than 200 miles, severing all of these water <br />lifelines simultaneously. This damage would require significant re -construction projects to restore the flow of <br />water, which would likely take months to complete, even with expedited, emergency repair efforts. <br />There is an estimated 6-month supply of water for southern California stored on this side of the San Andreas Fault. <br />However, an earthquake of this size would likely cause damage to local water storage and distribution <br />infrastructure as well, resulting in substantial losses to this locally stored water supply. Post -earthquake <br />firefighting efforts would also consume large quantities of local water supply. These combined effects could <br />quickly consume the available water, potentially causing widespread water shortages and rationing throughout <br />southern California. <br />107 <br />