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City of Santa Ana California Environmental Quality Act <br />Initial Study/Mitigated Negative Declaration <br /> <br />- 20 - <br />3.7 Geology and Soils <br /> <br />Would the project: <br />Environmental Issue <br />Potentially <br />Significant <br />Impact <br />Less Than <br />Significant <br />with <br />Mitigation <br />Incorporated <br />Less Than <br />Significant <br />Impact <br />No <br />Impact <br />a) Directly or indirectly cause potential substantial <br />adverse effects, including the risk of loss, injury, or <br />death involving: <br />i) Rupture of a known earthquake fault, as <br />delineated on the most recent Alquist-Priolo <br />Earthquake Fault Zoning Map issued by the State <br />Geologist for the area or based on other substantial <br />evidence of a known fault? Refer to Division of <br />Mines and Geology Special Publication 42. <br /> X <br />ii) Strong seismic ground shaking? X <br />iii) Seismic-related ground failure, including <br />liquefaction? X <br />iv) Landslides? X <br />b) Result in substantial soil erosion or the loss of <br />topsoil? X <br />c) Be located on a geologic unit or soil that is <br />unstable, or that would become unstable as a result <br />of the project, and potentially result in on- or off- <br />site landslide, lateral spreading, subsidence, <br />liquefaction or collapse? <br /> X <br />d) Be located on expansive soil, as defined in Table <br />18-1-B of the Uniform Building Code (1994), <br />creating substantial direct or indirect risks to life or <br />property? <br /> X <br />e) Have soils incapable of adequately supporting <br />the use of septic tanks or alternative waste water <br />disposal systems where sewers are not available for <br />the disposal of waste water? <br /> X <br />f) Directly or indirectly destroy a unique <br />paleontological resource or site or unique geologic <br />feature? X <br /> <br />  <br />  <br />City Council 15 – 73 12/2/2025