1433 & 1435 S Cypress Ave Units #100 & 101 - Plan

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Project No.: 2157-S 1433 Cypress Ave, Santa Ana CITY OF SANTA ANA Planrr%end Building Agency Approved FOR PERMIT ISSUANCE Master ID: Based on criteria established by the California Geological Survey, faults may bqA@tegorized as active, potentially active, or inactive, Active faults are those that show evidence of surface displacement within the last 11,000 years. Potentially active faults are those that show evidence of last displacement within the last 1.6 million years. Faults showing no evidence of displacement within the last 1.6 million years may be considered inactive for most purposed, except for some critical structures. In 1972, the Alquist-Priolo Earthquake Fault Zoning Act was enacted. The act defines active and potentially active faults essentially the same way as that used by the California Geological Survey. The site is not located within a designated Alquist-Priolo Earthquake Fault Zone. The probability of surface rupture at the site from faulting is considered to be very low. According to the "2010 Fault Activity Map of California, Jennings & Bryant" provided by California Geological Survey, Department of Conservation, Plate 3, the subject site is located approximately within 5.25 miles of a known potential active fault which is the Bolsa-Fairview fault of Newport - Inglewood -Rose Canyon fault zone. The proposed structure shall be designed in accordance with the Earthquake Regulations of the 2022 California Building Code and the seismic design parameters provided in this report. 7.2 Soil Liquefaction The site is located within a liquefaction zone as shown on the State of California "Seismic Hazard Zones" map. Earthquake -induced liquefaction is a phenomenon in which loose to medium dense saturated cohesionless soils undergo extreme losses in shear strength due to earthquake shaking. The liquefaction potential is directly related to the groundwater conditions at the site, as well as to the characteristics of the underlying soil deposits. Loose to medium dense sands below groundwater level are generally considered to be susceptible to liquefaction under strong ground shaking conditions. PACIFIC GEOTECH, INC.