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

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MM4.8-6 Prior to issuance of building permits, building plans shall specify the STC rating of windows and doors for all residential land uses. Window and door ratings shall be sufficient to reduce the interior noise level to a CNEL of 45 dBA or less, and shall be determined by a qualified acoustical consultant as part of the final engineering design of the project. (Impact 4.8- 2) MM4.8-7 Each project applicant shall provide proper shielding for all new HVAC systems used by the proposed residential and mixed use buildings to achieve an attenuation of 15 dBA at 50 feet from the equipment. (Impact 4.8-2) MM4.8-8 The City shall provide a written statement to each applicant for projects located within 400 feet of the SCRRA tracks that shall be provided for each residential unit and resident, notifying them of potential noise and vibration issues associated with the railroad tracks, including the following: Notice of Disclosure Each owner's [or renter's] interest is subject to the fact that trains operate at different times of the day and night on the railway tracks immediately adjacent to a project site; and that by accepting the conveyance of an interest [or lease agreement] in that project, owner [or renter] accepts all impacts generated by the trains. Posting of Notice of Disclosure in each residential unit. Prior to offering the first residential unit for purchase, lease, or rent, the property owner or developer shall post a copy of the Notice of Disclosure in every unit in a conspicuous location. Also, a copy of the Notice of Disclosure shall be included in all materials distributed for the Project, including but not limited to: the prospectus, informational literature, and residential lease and rental agreements. (Impact 4.8-8) Project Analysis and Conclusion The City determined that no impacts related to the proximity public use airport would not result in impacts would result. Impacts related to exposure of sensitive receptors from excessive groundborne vibration (Impact 4.8-3), potentially significant vibration levels (Impact 4.8-4), ambient noise increase (Impact 4.8-5), periodic noise impacts (Impact 4.8-6), and noise from increased traffic volumes (Impact 4.8-7) were below the level of significance and did not require mitigation. Impacts from noise levels exceeding City noise standards (Impact 4.8-1) and exposure to noise -sensitive land uses (Impact 4.8-2) were less than significant with the implementation of mitigation measures. Impacts causing groundborne vibration and development exposure near the Southern California Regional Rail Authority's (SCRRA) rail line (Impact 4.8-8) and construction activities from project implementation (Impact 4.8-9) were found to be significant and unavoidable. Specific economic, social, or other considerations make infeasible additional mitigation. Specifically, no additional feasible mitigation measures exist that would avoid or substantially reduce these impacts. The proposed adoption of the text regulations identified in Table 1 — Current and Proposed Text Regulations would not require preparation of a supplemental or subsequent EIR because specific development projects are neither included nor required. The new regulations would limit daily operations times and days of week, and maximum noise that could be generated from existing uses. No industrial use shall generate ground vibration perceptible without instruments at any point along the property line of the site except for motor vehicle operations. No vibration shall be produced that is transmitted through the ground and is discernible without the aid of instruments by a reasonable person at the property lines of the site. Vibrations from temporary construction, demolition, and vehicles that enter and leave the subject parcel are exempt from this standard. January 2025 41 Environmental Analysis