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MITIGATION MONITORING AND REPORTING PROGRAM FOR THE KAISER SAN LEANDRO MEDICAL CENTER /MIXED-USE RETAIL DEVELOPMENT PROJECT Environmental Impact Mitigation Measures Monitoring Responsibility Implementation and Monitoring Timeline Development shall implement the agreed upon additional or modified measures. AQ-4. The potential residential uses of AQ-4.1 Prepare a Health Risk Assessment. San Leandro Planning Services At such time a development the Mixed Use Retail Development Division, pursuant to required plans for the mixed-use retail component of the proposed project, could If residential uses are proposed within 500 feet of I-880, a health risk assessment subsequent environmental review development site are expose on-site sensitive receptors to shall be prepared by a qualified air quality consultant that shall demonstrate that for the mixed-use retail proposed, and dependent substantial concentrations of toxic air proposed residential uses within 500 feet of I-880 would not be exposed to diesel development site upon whether residential contaminants. particulate matter in excess of applicable BAAQMD standards. If residents are uses are proposed within 500 proposed for areas where exposure could exceed the BAAQMD thresholds, then the feet of I-880 health risk assessment shall make recommendations for reducing exposure to on- site residents. Recommendations shall be incorporated into project design and shall demonstrate a reduction in exposure to below BAAQMD thresholds, and could include increasing the distance between residents and the freeway, modification to the location and height of intakes to the ventilation system, addition of high efficiency particulate air (HEPA) air filtration systems, or reducing outdoor use areas, such as patio areas and balconies. Hazards and Hazardous Materials HAZ-1. Development of the proposed project would occur on property that is known to contain contaminated soil; therefore the proposed project could expose construction workers to existing or previously unidentified contaminants. This would be a potentially significant impact. HAZ-1.1 Prevent Exposure of Construction Workers to Hazardous Materials. The City shall enforce the following requirements for construction on the project site: • The project applicant(s) shall prepare a human health risk assessment (HHRA) if required by San Francisco Bay RWQCB, and submit it to the San Francisco Bay RWQCB for review and approval prior to any on-site demolition or excavation. The project applicant(s) shall also address any requirements the San Francisco Bay RWQCB shall establish concerning levels of residual contaminants allowed to remain on-site in soils to ensure that construction workers would not be at risk of an unacceptable level of exposure. More importantly, the City shall allow no construction (e.g., earth-disturbing activities except for those undertaken in conjunction with remediation efforts) to occur at the project site until RWQCB - approved Target Cleanup Levels for soil, if any, are achieved or alternative risk- based controls approved by the RWQCB, if any, have been implemented. • The project applicant(s) shall prepare and submit a Corrective Action Plan, if required by San Francisco Bay RWQCB, for the project site to San Francisco Bay RWQCB for approval. The applicant shall meet all goals of any applicable requirements in the Corrective Action Plan or obtain the RWQCB's alternative consent to proceed with construction of the project or a relevant portion thereof prior to City approval for of associated construction activities. • All general contractors shall prepare and implement a site specific construction worker health and safety plan containing construction worker health and safety requirements based on the levels of contamination at the project site. San Leandro Public Works Department, Environmental Services Division All general contractors shall prepare and implement a site specific construction worker health and safety plan Prior to any demolition activities, the project applicant(s) shall retain a qualified environmental specialist (e.g., a Registered Environmental Assessor or similarly qualified individual) to inspect all buildings and structures subject to demolition for the presence of hazardous materials Prior to demolition, grading or building permit issuance, verify: • achievement of RWQCB- approved Target Cleanup Levels; . preparation of a Corrective Action Plan, • that ACM testing and abatement (if necessary) has been completed; • documentation to the City that LBP testing and abatement, if necessary, has been completed • inspection all buildings and structures subject to demolition for the presence of hazardous materials April 22, 2010 Kaiser Permanente San Leandro Medical Center and Mixed-Use Retail Development Project 8/22