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MOUNTAIN HOUSE N&GHBORHOODs K AND L INITIAL STUDY 5.ENVIRONMENTAL CHECKLIST <br /> 6. GEOLOGY AND SOILS <br /> Less Than <br /> Potential MEIR Significant New <br /> Significant Required Impact Due to Additional New <br /> Impact Additional Mitigation Significant Additional <br /> Less Than Adequately Review:No Measures in Impact Not Mitigation <br /> Significant or Addressed in Significant Project Addressed in Measures <br /> Issue No Impact MEIR Impact Description MSIR Required <br /> i <br /> 5.6 Geology and Soils. Would the <br /> project: <br /> a) Expose people or structures to potential <br /> substantial adverse effects,including the risk <br /> of loss,injury,or death involving: <br /> i) Rupture of a known earthquake fault,as ❑ ❑ ❑ ❑ ❑ <br /> delineated on the most recent Alquist- <br /> Priolo Earthquake Fault Zoning Map <br /> � issued by the State Geologist for the <br /> R + area or based on other substantial <br /> evidence of a known fault? Refer to <br /> Division of Mines and Geology Special <br /> Publication 42. <br /> T ii) Strong seismic ground shaking? ❑ 1 ❑ ❑ ❑ ❑ <br /> iii) Seismic-related ground failure,including ❑ ❑ ❑ ❑ <br /> liquefaction? <br /> iv) Landslides? ❑ ❑ ❑ ❑ ❑ <br /> k b) Result in substantial soil erosion or the loss of ❑ ❑ ❑ ❑ ❑ <br /> J!' topsoil. <br /> 7 c) Be located on a geologic unit or soil that is ❑ ❑ ❑ ❑ <br /> unstable,or that would become unstable as a <br /> result of the project,and potentially result in <br /> on-or off-site landslide,lateral spreading, <br /> subsidence,liquefaction or collapse? <br /> d) Be located on expansive soil,as defined in ❑ ❑ ❑ ❑ ❑ <br /> Table 18-1-B of the Uniform Building Code <br /> (1994),creating substantial risks to life or <br /> property? <br /> t- e) Have soils incapable of adequately supporting ❑ ❑ ❑ ❑ ❑ <br /> the use of septic tanks or alternative waste <br /> water disposal systems where sewers are not <br /> available for the disposal of waste water? <br /> f <br /> i <br /> Setting <br /> Topography <br /> The Neighborhoods K and L project site is relatively flat, sloping gently <br /> downward from south to north toward Old River. Elevations range from about 17 <br /> feet above mean sea level (msl) in the northern corner to about 25 feet above <br /> _ msl in the southern portion of the site. <br /> !f <br /> F! <br /> This impact remains significant and unavoidable as stated in the 1994 MEIR. <br /> Pitsmi 1 I 5-73 <br />