Res07 14802 - Laserfiche WebLink

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08/28/2007 equipment at the closest residential property line. Acoustical control measures shall be included in the project design to meet the following standards (refer to Table 4.3-3): . For the continuous operation of stationary mechanical equipment, the average noise levels (Leq) in a cumulative period of more than thirty (30) minutes in any hour shall be limited to 50 dBA during the daytime (7:00 AM to 10:00 PM) and 45 dBA during the nighttime (10:00 PM to 7:00 AM) at the closest residential property line. . For non-continuous, intermittent stationary noise sources, noise levels shall be limited to: The noise standard plus five (5) dBA for a cumulative period of more than fifteen (15) minutes in any hour (i.e. 55 dBA daytime and 50 dBA nighttime); or The noise standard plus ten (10) dB for a cumulative period of more than five (5) minutes in any hour (i.e. 60 dBA daytime and 55 dBA nighttime); or The noise standard plus fifteen (15) dB for a cumulative period of more than one (1) minute in any hour (i.e. 65 dBA daytime and 60 dBA nighttime); or The noise standard plus twenty (20) dB or the maximum measured ambient for any period of time (i.e. 70 dBA daytime and 65 dBA nighttime). Finding: The identified noise mitigation measure is feasible and would reduce potential noise impacts from the redevelopment of the Sequoia Hospital Campus/Precise Plan to less-than-significant level. Mitigation measure NOI-1.1 is adopted and implementation of this measure would reduce this impact to a less-than- significant level. C. AIR QUALITY IMPACTS Potential Impact AIR-1 : Construction activities, particularly generation of construction dust, could result in significant short-term air quality impacts. Mitigation Impact AIR-1.1 : Demolition Impacts. The BAAQMD has prepared a list of feasible construction dust control measures that can reduce construction impacts to a less than significant level. The following dust control measures shall be implementation by project contractors during demolition and shall be reflected as notes on the project plans prior to issuance of demolition permits: . Watering should be used to control dust generation during demolition of structures and break-up of pavement. . Cover all trucks hauling demolition debris from the site. . Use dust-proof chutes to load debris into trucks whenever feasible. Watering should be used to control dust generation during transport and handling of recycled materials. Atty/Reso/Reso.1738 082207 4 14802 Muff # 613