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The ice center would likely involve lighting for the parking and circulation areas, for patron security, and for signage. Thus, this portion of the Staples Ranch site would be relatively well lit. If this portion of the park wen; intended primarily for passive recreational uses and not an ice center as part of the proposed project, then the Ice Center Alternative would likely result in additional light and glare sources, compared to the proposed project. On the other hand, if this portion of the community park were intended for lighted facilities, such as ballfields, the unmitigated impacts under proposed project could be greater than under the Ice Center Alternative. Regardless, implementation of Mitigation Measures VQ-3.1 through VQ-3.4 identified for the proposed project would reduce this impact for the Ice Center Alternative to less than significant, similar to the proposed project. Air Quality: Development under the Ice Center Alternative would generate approximately 3,300 daily trips. The ice center would also potentially generate additional stationary source emissions associated with cooling and other mechanical equipment associated with the ice center operations. The proposed project would exceed the BAAQMD threshold of 80 pounds/day for ROG, NOx, and PM10; therefore, this alternative with more vehicular trips attributed to the addition of the ice center would also exceed the BAAOMD thresholds. Because no mitigation measures would be sufficient to reduce the alternative's air emissions to a less- than-significant level, the resultant emissions would also result in a significant and unavoidable air quality impact but to a greater magnitude than the proposed project. Hazards: The Staples Ranch site is located outside and therefore is compatible with ALUC's Airport Land Use Policy Plan (ALUPP) safety zones under both the Proposed Project and the Ice Center Alternative. The Project site is located within Caltrans' recommended Safety Zones 4 and 6 of the California Airport Land Use Planning Handbook, as shown on Figure 3.4-2 of the DEIR. The ALUC has not adopted the safety zones recommended by Caltrans, but ALUC staff has prepared a draft revision of its ALUPP that would adopt the safety zones recommended by Caltrans. The project would be compatible with the land uses allowed within these Caltrans safety zones; however, development of the Ice Center Alternative would not, because of the number of spectators the ice center would be able to accommodate. The projection of the 2,200 spectators was based on previous estimates of spectators for the ice center from potential developers of the ice center. As noted in Response to Comment 13.4 of the FEIR, if the ice center altemative were chosen, the ice center would be designed for a capacity of 1,475 spectators instead of the previous estimate of 2,200. This revised design would also not be compatible with the Caltrans safety zones. Only the following assembly-related land uses Stoneridge Drive Specific Plan Amendment and Staples Ranch Project Environmental Impact Report Findings and Statement of Overriding Considerations Page 8 of 30