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Administrative Draft Environmental Impact Report <br /> Gill Medical Center Project <br /> possible to estimate the potential Project construction vibration levels.The FTA provides the following <br /> equation: [PPVequip = PPVref x (25/D)11]. Table 4.15-15 presents the expected Project related vibration <br /> levels at a distance of 330 feet. <br /> Table 4.15-15.Construction Vibration Levels at 330 Feet <br /> Receiver PPV Levels(inlsec)l <br /> Peak Vibration Threshold Exceed <br /> Small Jackhammer Loaded Large Drilling Threshold <br /> Bulldozer Trucks Bulldozer <br /> 0.00006 0.0007 0.001 0.001 0.001 0.001 0.2 No <br /> 'Based on the Vibration Source Levels of Construction Equipment included on Table 14(FTA 2018). <br /> As shown in Table 4.15-15,vibration as a result of construction activities would not exceed 0.2 PPV at the <br /> nearest structure.Thus, construction generated vibration levels would not exceed the recommended <br /> threshold. <br /> Project operations would not include the use of any stationary equipment that would result in excessive <br /> vibration levels.Therefore, the Project would not result in groundborne vibration impacts during <br /> operations. <br /> Project generated groundborne vibration would be less than significant. <br /> Mitigation Measures <br /> No mitigation required. <br /> Impact 4.15-3: The proposed project would expose people to excessive airport noise. <br /> Impact Determination: less than significant <br /> Threshold: For a project located within the vicinity of a private airstrip or an airport land use plan or, <br /> where such a plan has not been adopted, within two miles of a public airport or public use <br /> airport, would the project expose people residing or working in the project area to excessive <br /> noise levels. <br /> The Project site is located approximately 3.6 miles northwest of the Kingdon Airpark General Aviation <br /> Airport.The Proposed Project is not located within an airport land use plan or within two miles of a public <br /> airport or public use airport. Implementation of the Proposed Project would not affect airport operations <br /> nor result in increased exposure of people working at or visiting the project site to aircraft noise.The <br /> impact is less than significant. <br /> Mitigation Measures <br /> No mitigation required. <br /> Noise 4.15-34 October 2021 <br />