2018-075 - Final Subsequent Environmental IMpact Report No. 2018-15

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City of Santa Ana Impact Statement Transportation/Tragic _ Impact 4.8-E1: Implementation of the Elan Project would cause an increase in traffic that is substantial in relation to existing traffic load and capacity of the street system. Tribal Cultural Resources Impact 4.9-E2: Implementation of the Elan Project could encounter significant tribal cultural resources during construction. Impact Summary equipment would be below the 85 VdB threshold for human annoyance and would be below the potential for building damage, and thus would be less than significant. If construction activities occur closer than 50 feet from sensitive receptors this would result in these sensitive receptors experiencing vibration impacts above the threshold of 85 VdB despite the implementation of mitigation measures, and could cause damage to buildings that are particularly susceptible to damage, in which case this impact would be potentially significant and unavoidable. The traffic associated with the proposed project is expected to significantly affect 2 of the 23 intersections when compared to the LOS standards. The remaining 21 key study intersections are forecast to continue to operate at an acceptable LOS with the addition of project -generated traffic. Therefore, these impacts are considered to be less than significant. Estimated impacts for 2020 and 2040 are also considered to be less than significant. Due to the developed nature of the project site and the surrounding area, and absence of tribal cultural resources identified during consultation in the project area, it is less likely that significant tribal cultural resources would be encountered during construction of the Elan Project. 2. CEQA Findings Findings would be potentially significant and unavoidable. Finding 1. Changes or alterations have been required in, or incorporated into the project which avoid, substantially lessen, or reduce the magnitude of the significant environmental effect. Implementation of mitigation measure MM - TRA -2 would offset the impact of the Elan Project and improve the LOS to acceptable operating conditions thereby reducing potential impacts to less than significant. Finding 1. Changes or alterations have been required in, or incorporated into the project which avoid, substantially lessen, or reduce the magnitude of the significant environmental effect. Any tribal cultural resource unexpectedly discovered during construction would be evaluated and protected with mitigation Metro East Mixed -Use Overlay District Expansion and Elan August 2018 Development Projects 2-19 ICF 19.18 Findings of Fact/Statement of Overriding Considerations