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Section 4. Q — Environmental Setting and Discussion of Impacts <br />4.12.2 Environmental Checklist <br />NOISE <br />Less Than <br />Potentially Significant Less Than Beneficial Infunnation <br />Significant With Significant No Impact Impact Source(s) <br />Impact Mitigation Impact <br />Incorporated <br />Would the project result in: <br />1) Exposure of persons to or generation ❑ ® ❑ ❑ ❑ 1-3 <br />4.12.3 Noise Impacts <br />4.12.3.1 Noise Thresholds <br />❑ ® ❑ ❑ 1 <br />❑ ® ❑ ❑ 1-3 <br />® ❑ ❑ ❑ 1-3 <br />❑ ❑ ® ❑ 1,18 <br />❑ ❑ ® ❑ 1 <br />The CEQA Guidelines state that a project will normally be considered to have a significant impact if <br />the noise levels generated by the project will substantially increase existing noise levels at noise <br />sensitive receivers on a permanent or temporary basis. CEQA does not define what noise level <br />increase should be considered substantial. <br />City of Redwood City 74 Initial Study/Mitigated Negative Declaration <br />Sandpiper Elementary School Facilities Expansion November 2016 <br />of noise levels in excess of standards <br />established in the local general plan <br />or noise ordinance, or applicable <br />standards of other agencies? <br />2) <br />Exposure of persons to, or <br />❑ <br />generation of, excessive <br />groundborne vibration or <br />groundborne noise levels? <br />3) <br />A substantial permanent increase in <br />❑ <br />ambient noise levels in the project <br />vicinity above levels existing <br />without the project? <br />4) <br />A substantial temporary or periodic <br />❑ <br />increase in ambient noise levels in <br />the project vicinity above levels <br />existing without the project? <br />5) <br />For a project located within an <br />❑ <br />airport land use plan or, where <br />such a plan has not been adopted, <br />within two miles of a public <br />airport or public use airport, would <br />the project expose people residing <br />or working in the project area to <br />excessive noise levels? <br />6) <br />For a project within the vicinity of a <br />❑ <br />private airstrip, would the project <br />expose people residing or working in <br />the project area to excessive noise <br />levels? <br />4.12.3 Noise Impacts <br />4.12.3.1 Noise Thresholds <br />❑ ® ❑ ❑ 1 <br />❑ ® ❑ ❑ 1-3 <br />® ❑ ❑ ❑ 1-3 <br />❑ ❑ ® ❑ 1,18 <br />❑ ❑ ® ❑ 1 <br />The CEQA Guidelines state that a project will normally be considered to have a significant impact if <br />the noise levels generated by the project will substantially increase existing noise levels at noise <br />sensitive receivers on a permanent or temporary basis. CEQA does not define what noise level <br />increase should be considered substantial. <br />City of Redwood City 74 Initial Study/Mitigated Negative Declaration <br />Sandpiper Elementary School Facilities Expansion November 2016 <br />