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<br /> <br />Red Morton Community Park Sports Lighting Initial Study <br />City of Redwood City 39 June 2015 <br />4.6.2 Environmental Checklist and Discussion of Impacts <br /> <br /> <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 Impact Checklist <br />Source(s) <br />Would the project: <br />1. Expose people or structures to potential <br />substantial adverse effects, including the risk <br />of loss, injury, or death involving: <br /> <br />a. Rupture of a known earthquake fault, as <br />described on the most recent Alquist- <br />Priolo Earthquake Fault Zoning Map <br />issued by the State Geologist for the area <br />or based on other substantial evidence of a <br />known fault? (Refer to Division of Mines <br />and Geology Special Publication 42.) <br /> 1,2 <br />b. Strong seismic ground shaking? 1,2 <br />c. Seismic-related ground failure, including <br />liquefaction? <br /> 1,7,8 <br />d. Landslides? 1,2 <br />2. Result in substantial soil erosion or the loss of <br />topsoil? <br /> 1 <br />3. Be located on a geologic unit or soil that is <br />unstable, or that will 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 /> 1,7,8 <br />4. Be located on expansive soil, as defined in <br />Section 1802.3.2 of the California Building <br />Code (2007), creating substantial risks to life <br />or property? <br /> 1,7 <br />5. Have soils incapable of adequately supporting <br />the use of septic tanks or alternative <br />wastewater disposal systems where sewers are <br />not available for the disposal of wastewater? <br /> 1 <br /> <br />4.6.1.1 Geology, Soils and Seismicity Impacts <br /> <br />Installation of the proposed lighting would require minor excavation to construct the footings for the <br />light poles. The proposed project could be exposed to several geologic hazards, including expansive <br />soil, liquefaction, and earthquakes. The project site is flat; therefore, the potential for erosion and <br />landslides is low. The proposed light standards would be designed and constructed in conformance <br />with the 2013 California Building Code, which would avoid and minimize potential damage from <br />seismic shaking and seismic-related hazards. The standard measures listed below would be <br />implemented as part of the proposed project to avoid exposing people or structures to potential <br />substantial adverse effects, including the risk of loss, injury, or death as a result of geologic, soil, and <br />seismic conditions on the project site. <br />8.A. - Page 56