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City of Pleasanton—Merritt Property Project <br />Consistency Checklist 15183 Consistency Checklist <br /> <br /> <br />152 <br />localized vibration in the immediate vicinity of the construction. The nearest <br />residences are located approximately 50 feet from construction activities <br />which would occur on the project site. <br />Because vibration levels generated by the type of construction equipment <br />which would be required for the proposed project dissipate very rapidly with <br />distance, vibration levels at the nearest residences are expected to be <br />below 70 vibration in decibels (VdB) over the course of project construction <br />activities. Construction-generated vibration levels of less than the 70 VdB root <br />mean square (rms) at nearby existing receptors would not exceed the <br />strictest FTA groundborne vibration impact criteria of 72 VdB. Therefore, <br />project construction would not result in the exposure of persons to excessive <br />groundborne vibration levels, and potential impacts would be less than <br />significant without mitigation. <br />Implementation of the proposed project would not include any permanent <br />sources that would expose persons in the project vicinity to groundborne <br />vibration levels that could be perceptible without instruments at any existing <br />sensitive land use in the project vicinity. In addition, there are no existing <br />significant permanent sources of groundborne vibration in the project vicinity <br />to which the proposed project would be exposed. Therefore, proposed <br />project operational groundborne vibration level impacts would be <br />considered less than significant without mitigation. Therefore, there are no <br />environmental effects that are peculiar to the proposed project. The <br />proposed project would not result in a new or more severe adverse impact <br />that was not previously identified in the Housing Element Update FEIR. <br />c) Excessive Noise Levels from Airport Activity <br />Would the project: c) For a project located within the vicinity of a private airstrip or <br />an airport land use plan or, where such a plan has not been <br />adopted, within two miles of a public airport or public use <br />airport, would the project expose people residing or working in <br />the project area to excessive noise levels? <br />Summary of Housing Element Update FEIR <br />The Livermore Municipal Airport is located approximately 1 mile east of the <br />City limits. At this distance, the rezoned housing sites are located well outside <br />of the airport’s 60 dBA Community Noise Equivalent Level (CNEL) noise <br />contours. Therefore, the Housing Element Update FEIR concluded that <br />implementation of the Housing Element Update would not expose persons <br />residing or working at the sites to noise levels from airport activity that would