09 ATTACHMENTS - Laserfiche WebLink

PUD-74 Environmental Checklist masonry wall. For Lots 93 and 94, the seven-foot wall along the southern boundary would be located on top of a five-foot tall retaining wall (making the effective height of the wall 12-feet tall from the City's OSC side of the wall), further mitigating noise from the City's OSC. Seven- foot tall masonry walls would also be constructed along the project's northern and eastern boundaries. Standards of Significance For purposes of this environmental document, an impact is considered significant if the proposed project would: Result in interior noise levels generally exceeding 45 dBA Lan; Result in backyard noise levels generally exceeding 60 dBA Lan; Result in construction noise levels that do no meet the City of Pleasanton Noise Ordinance. Less Than Potentially Significant Less Than Significant With Mitigation Significant No Issues Impact Incoryorated Impact Impact Noise Would the project: a) Exposure of persons to or generation of noise ~ ~ ~X levels in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies? b) Exposure of persons to or generation of excessive ~ ~ ~X ground borne vibration or ground borne noise levels? c) A substantial permanent increase in ambient noise ~ ~ ~X levels in the project vicinity above levels existing without the project? d) A substantial temporary or periodic increase in ambient noise levels in the project vicinity above levels existing without the project? e) For a project located within an airport land use ~ ~ ~X plan or, where such a plan has not been adopted, wlthm two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excesslve noise levels? f) For a prof ect within the vicinity of a private ~ ~ ~ ^X 28