75A - One Broadway Plaza Addendum_4.20.2020_wAppendices

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ONE BROADWAY PLAZA PROJECT EIR ADDENDUM CITY OF SANTA ANA 5. Environmental Analysis Comments: a) Create a significant hazard to the public or the environment through the routine transport, use or disposal of hazardous materials? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR. As with the Approved Project, the construction and operation of the Proposed Project would involve the use, transport, and disposal of typical hazardous materials used in the construction and operation of residential uses. For example, construction of the Proposed Project would use vehicle fuel for the construction equipment, paints, and solvents and the operation of the Proposed Project would involve typical household cleaning supplies. As with the Approved Project, the Proposed Project would implement Mitigation Measure HZ-3 to ensure compliance with applicable federal, state, and local regulations for the use of hazardous materials and generation of hazardous wastes. The Proposed Project would result in a less than significant impact. The Proposed Project would follow existing regulations and would not result in any new or more severe impacts that would require the preparation of a subsequent EIR. b) Create a significant hazard to the public or the environment through reasonably foreseeable upset and accident conditions involving the release of hazardous materials into the environment? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR. The Certified EIR determined that the demolition of existing structures on site could result in the accidental release of asbestos containing materials (ACMs) and lead -based paint. The Certified EIR implements Mitigation Measures HZ-1 and HZ-2 to address ACMs and lead -based paint. The Proposed Project would not demolish any buildings, since the Proposed Project would occur within the approved office tower. As discussed above, the Proposed Project would involve the handling of hazardous materials that are typical of construction and operation of residential uses. As with the Approved Project, the handling of hazardous materials is regulated by state and federal laws. The Proposed Project would not involve the use of materials in a manner that poses any substantial hazards to people, or to animal or plant populations. In order to address the use and handling of hazardous materials, the Proposed Project would implement identified mitigation measures. Potential impacts relating to the release of hazardous materials would be less than significant. The Proposed Project would not result in any new or more severe impacts that would require the preparation of a subsequent EIR. c) Emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within one -quarter mile of an existing or proposed school? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR. As stated in the Certified EIR, the potential for significant adverse impact to offsite uses, including the adjacent High School of the Arts and Willard Junior High School (approximately 0.25 miles west), is unlikely given the nature and amount of hazardous materials that would be used on site. As with the Approved Project, the Proposed Project would not create a significant adverse impact to schools, including the Orange County Education Arts Academy, El Sol Academy, High School of the Arts and Willard Junior High School. The handling and transport of hazardous materials would be conducted in compliance with all applicable federal, Apri12020 Page 59