3A Public Hearing 2010 0503 - Laserfiche WebLink

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Environmental Impact EXHIBIT "D" MITIGATION MONITORING AND REPORTING PROGRAM FOR THE KAISER SAN LEANDRO MEDICAL CENTER / MIXED-USE RETAIL DEVELOPMENT PROJECT Mitigation Measures • Prohibit unnecessary idling of internal combustion engines. • Utilize noise control blankets on the building structure as the building is erected to reduce noise emission from the site. If necessary, use quilted noise control blankets on or within existing hospital buildings specifically to shield extremely sensitive areas; • If approved by the Occupational Safety and Health Administration (OSHA), spotters or flaggers in clear view of the operator may be used instead of backup beepers to direct the backing operation of mobile equipment when there is no public access to a construction site. This is allowed per the requirements of Title 8, Section 1592 of the California Administrative Code. • Designate a "Noise Disturbance Coordinator" for construction activities. The Coordinator shall be responsible for responding to any local complaints regarding construction noise. The Coordinator will determine the cause of the noise complaint (i.e., starting too early, bad muffler, no shielding), and will require that reasonable measures warranted to correct the problem will be implemented. Conspicuously post a telephone number at the project construction site to reach the Coordinator and include it in the notices to neighbors regarding the project construction schedule. • The nearest sensitive receptors to the Mixed -Use Retail Development are also approximately 800 feet away from the construction site, to the northeast across 1- 880 (along Sundberg Avenue). At a distance of 800 feet, vibration levels from construction equipment would be well below the human response criteria of 85 VdB. However, the existing commercial and industrial structures adjacent to the northwest portion of the project site are within 100 feet of construction of the Mixed -Use Retail Development. At this time, it is unknown if pile driving would be required for construction of the structures at the Mixed -Use Retail Development. If pile driving is required and would occur within 100 feet of the existing adjacent structures, then these activities could expose the structures to excessive vibration, resulting in damage. Vibration impacts for development of the Mixed -Use Retail Development would therefore be potentially significant. Monitoring Responsibility Implementation and Monitoring Timeline NO -2. Construction activities, including NO -2.1 Reduce Potential Pile Driving Vibration Effects On Nearby Structures Below San Leandro Building and Safety pile driving used during construction of the The Structural Damage Threshold. Services Division Mixed -Use Retail Development, could generate excessive groundborne vibration To mitigate potential pile -driving vibration impacts, a site-specific engineering at nearby structures; and Build- Out of the assessment shall be completed by the project applicant for the Mixed- Use Retail Kaiser Medical Center could exceed the Development under the supervision of a qualified vibration consultant to assure that annoyance thresholds. This would be a there would be no potential for structural damage to existing buildings within 100 potentially significant impact. feet of any proposed pile driving, based on a vibration damage threshold for a peak particle velocity (PPV) of 0.20 inches per second (or greater depending on the type of construction). This plan shall be submitted for review and approval by the City prior to final approval to ensure that maximum feasible vibration reduction is Review and approval of site- specific engineering assessment to assure that there would be no potential for structural damage to existing buildings within 100 feet of any proposed pile driving April 22, 2010 Kaiser Permanente San Leandro Medical Center and Mixed -Use Retail Development Project 11/22