2005-064 - Approving Conditional Use Permit No. 2005-10

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and shall be determined by a qualified acoustical consultant as part of the final engineering design of the project. 64. Prior to issuance of building permits, building plans shall specify the STC rating of windows and doors for all residential land uses. Window and door ratings shall be sufficient to reduce the interior noise level to a CNEL of 45 dB or less, and shall be determined by a qualified acoustical consultant as part of the final engineering design of the project. 65. Prior to building occupancy, mechanical ventilation shall be installed at the proposed condominiums and residential towers since the interior CNEL standard of 45 dB is to be met with all windows and doors closed. 66. Prior to building occupancy, to the extent possible, all equipment shall be enclosed within a building or separate structure. Where this is not possible, barriers may be necessary to shield the equipment from the existing and proposed residential buildings. Depending on the size and style of the equipment, silencers in the intake and exhaust ducts may also be necessary to reduce noise at the residential buildings to an acceptable level. 67. Upon project completion, truck deliveries to the restaurant and the retail building shall be restricted to the hours of 7:00 a.m. to 10:00 p.m. Delivery trucks shall not be permitted to idle in the parking lots or loading areas and shall be required to have properly maintained, factory approved mufflers. Delivery truck drivers shall be encouraged to minimize acceleration and maintain reduced vehicle speeds while onsite. 68. Demolition and construction plans for the proposed project shall reflect the following note: "During demolition and construction, the contractor shall adhere to all City Noise Ordinance requirements to limit all construction activity, including equipment start-up, to between the hours of 7:00 a.m. and 8:00 p.m. Mondays through Saturdays. No construction shall take place on Sundays or federal holidays. 69. During demolition and construction, the contractor shall site all construction staging and storage areas away from sensitive receptors to the furthest extent possible. 70. During construction activities, the project developer shall ensure that all pile driving equipment shall be enclosed on all sides with an acoustical blanket barrier that provides a minimum sound transmission class (STC) rating of 30. The height of the blanket enclosure shall be at least 20-feet. With the exception of points of access to the enclosure area, there shall be no openings or gaps in the enclosure, and all points of access are to remain closed during pile driving activities. Notwithstanding Mitigation Exhibit "A" Page 10 of 15