2677 3%4 N Main Unit#WCC01 - Plan

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Project No. VP-6214-01 Verizon Wireless — Fisher Floral The nearest well, 337861N11.78587W001 as shown on Closest Well CITY OF SANTA ANA Planning and Building Agency Approved FOR PERMIT ISSUANCE undwater Data (Plate G-1) and groundwater well data (Plate G-2) indicated the high Ma %gwater elevation to be 70.3 feet above mean sea level. The elevation of our proj Pete�ea is about 145 feet. Thus, we believe the historic groundwater depth is around 75-feet below the existing ground surface. Groundwater is not anticipated to affect the site adversely. However, these observations reflect site conditions at the time of the investigation and do not preclude changes in local groundwater conditions, localized seepage due to variations in rainfall, heavy irrigation, damaged structure (pipes, etc.), or altered site drainage pattern(s). Geologic Hazards In addition to strong ground motions at the site, other secondary effects of a major nearby earthquake might include earthquake induced liquefaction, induced flooding and subsidence. These possible effects are considered very low due to lack of near surface groundwater and presence of medium dense to dense sandy alluvium. The site is not located near any impounded bodies of water therefore seiches are not considered a potential hazard to the project. The project site is not close to a flood channel. The site is not listed within flood hazard zones by FEMA. The most significant geologic hazard to the project sites is the potential for moderate to strong ground shaking from earthquakes generated on the faults within the Southern California region. The project site is located in the highly seismic Southern California region within the influence of several fault systems that are considered to be active or potentially active. In our opinion, the potential for surface rupture at the site due to fault plane displacement is considered likely. 2