Item 21 - Public Hearing - Amendments to the Transit Zoning Code (SD-84) Zoning District and Citywide Zoning Code

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TZC EIR Mitigation Measures MM4.5-1 When sites that are listed in the EDR Report initiate project development, the project applicant shall prepare a Phase I ESA for the proposed site. The Phase I ESA shall be prepared in accordance with ASTM E-1527-05 "Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process" (November 1, 2006). The purpose of a Phase I ESA is to identify environmental conditions at a proposed project site that may suggest environmental contamination. The Phase I ESA report shall be prepared by a CA EPA Registered Environmental Assessor or similarly qualified individual prior to initiating any construction activities at the site. If recommended in the Phase I ESA, the project sponsor shall undertake (or require the responsible party to undertake) a Phase II ESA soil sampling plan; or if any environmental contamination is identified by the Phase I ESA, the project sponsor shall implement (or require the responsible party to implement) the recommendations of the report to further investigate and to remove any soil contamination. (Impact 4.5-2) MM4.5-2 In the event that previously unknown or unidentified soil and/or groundwater contamination that could present a threat to human health or the environment is encountered during construction in the Transit Zoning Code (SD 84A and SD 84B) area, construction activities in the immediate vicinity of the contamination shall cease immediately. If contamination is encountered, a Risk Management Plan shall be prepared and implemented that (1) identifies the contaminants of concern and the potential risk each contaminant would pose to human health and the environment during construction and post -development and (2) describes measures to be taken to protect workers, and the public from exposure to potential site hazards. Such measures could include a range of options, including, but not limited to, physical site controls during construction, remediation, long-term monitoring, post -development maintenance or access limitations, or some combination thereof. Depending on the nature of contamination, if any, appropriate agencies shall be notified (e.g., Santa Ana Fire Department). If needed, a Site Health and Safety Plan that meets Occupational Safety and Health Administration requirements shall be prepared and in place prior to commencement of work in any contaminated area. (Impact 4.5-2) MM4.5-3 Prior to the demolition of structures that were constructed before 1980, a thorough investigation shall be completed to determine if asbestos, lead, or PCBs exist on the site. All demolition that could result in the release of lead and/or asbestos must be conducted according to Cal/OSHA standards. (impact 4.5-2) MM4.54 For development of structures that exceed 200 feet in height above ground level at a development site, applicants shall file a Notice of Proposed Construction or Alteration with the FAA (FAA Form 7460-1). Following the FAA's aeronautical evaluation of the project, projects must comply with conditions of approval imposed or recommended by the FAA. Subsequent to the FAA findings, the project shall be reviewed by the ALUC for consistency analysis. (Impact 4.5-5) MM4.5-5 Prior to initiation of construction activities, any development within the Transit Zoning Code (SD 84A and SD 84B) Area shall have a completed traffic control plan, prepared by the project proponent that will be implemented during construction activities. This may include, but is not limited to, the maintenance of at least one unobstructed lane in both directions on surrounding roadways. At any time if only a single lane is available, the developer shall provide a temporary traffic signal, signal carriers (i.e., flagpersons), or other appropriate traffic controls to allow travel in both directions. If construction activities require the complete closure of a roadway segment, the developer shall provide appropriate signage indicating alternative routes. (Impact 4.5-6) January 2025 31 Environmental Analysis