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Highway I-680, the developer of this use shall prepare a health risk assessment report to be reviewed and approved by the City. The health risk assessment shall demonstrate that the increased cancer risks for the proposed sensitive use would be below the BAAQMD permitting limit of 10 in one million (per its Policy and Procedure Manual, the BAAQMD would deny an Authority to Construct or a Permit to Operate for any new or modified source of TACs that exceeds a cancer risk of 10 in one million or a chronic or acute hazard index of 1.0); or, should the health risk assessment determine that lifetime cancer risk would exceed 10 in one million, the developer shall install in the sensitive use an enhanced ventilation filtration system such that the resultant lifetime increased cancer risk is less than 10 in one million. No sensitive use shall be approved within the EDZ where the health risk assessment determines that lifetime cancer risk from the freeway and from uses in the EDZ would exceed 10 in one million. Site(s) affected: All sites that include a sensitive use such as, but not limited to, a senior housing facility, child-care or healthcare facility, within 300 to 1,000 feet of a source of TACs. (Draft SEIR, pp. 4.B-23 to 4.B-24.) 2. Noise Impact 4.0-1 Development within the proposed Zone would increase construction noise levels at sensitive receptors located near construction sites. The SEIR evaluates the impact of the proposed Zone related to a substantial temporary increase in noise levels at sensitive receptors located near construction sites. Significance Before Mitigation: Significant Significance After Mitigation: Less than Significant Finding: Changes have been incorporated into the proposed Zone that would avoid the significant environmental effect as identified in the SEIR. Mitigation Measures 4.0 -la and 4.0 -lb, which are incorporated into the proposed Zone, will reduce the significant environmental impact to a less -than -significant level. Facts in Support of Finding: The following facts and mitigation measures indicate that the impact will be reduced to less than significant. 1. Construction activities would include demolition, site preparation, paving, and building construction, in addition to construction for improvements such as roadways, storm drainage, and utilities. Construction would involve the use of heavy equipment (e.g., front loader, graders, haul trucks) in addition to small power tools, generators, and hand tools that would be sources of noise. 2. Implementation of Mitigation Measures 4.0 -la and 4.0 -lb set forth in Table 6-1 of the Final SEIR and listed in the MMRP apply to all potential sites that would be developed within the proposed Zone and will ensure that 20