2024-053 - Final Supplemental for The Related Bristol Specific Plan Project

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Facts in Support of Findings: The City's Municipal Code Chapter 18-156, Control of Urban Runoff implements the requirements of the Orange County Municipal NDPES Storm Water Permit (Order No. R8-201 6-0001 ). All projects in the City are required to conform to the permit requirements, which includes installation of Best Management Practices (BMPs) in compliance with the NPDES permit, which establishes minimum stormwater management requirements and controls that are required to be implemented for the proposed Project. To reduce the potential for soil erosion and the loss of topsoil, a Stormwater Pollution Prevention Plan (SWPPP) is required by the Regional Water Quality Control Board (RWQCB) regulations to be developed by a QSD (Qualified SWPPP Developer). The SWPPP is required to address site -specific conditions related to specific grading and construction activities. With compliance with the City's Municipal Code, RWQCB requirements, and the BMPs in the SWPPP that is required to be prepared to implement the proposed Project, construction impacts related to erosion and loss of topsoil would be less than significant. In addition, the proposed Project includes installation of landscaping, such that during operation of the Project substantial areas of loose topsoil that could erode would not exist. Also, the onsite drainage features that would be installed by the Project have been designed to slow, filter, and slowly discharge stormwater into the offsite drainage system, which would also reduce the potential for stormwater to erode topsoil during Project operations. Furthermore, implementation of the Project requires City approval of a site -specific Water Quality Management Plan (WQMP) (included as Appendix M to the Draft Supplemental EIR), which would ensure that the City's Municipal Code, RWQCB requirements, and appropriate operational BMPs would be implemented to minimize or eliminate the potential for soil erosion or loss of topsoil to occur. As a result, potential impacts related to substantial soil erosion or loss of topsoil would be less than significant. Therefore, impacts related to Project buildout of the site would be consistent with the impact conclusions set forth in the GPU FEIR, which determined that impacts related to erosion and the loss of topsoil would be less than significant (Draft Supplemental EIR at p. 5.4-1 1 ). E. Hazards and Hazardous Materials Impact Finding: The Project would not emit hazardous emissions or handle hazardous or acutely hazardous materials, substances or waste within 0.25 mile of an existing or proposed school (Draft Supplemental EIR at p. 5.6-25). Facts in Support of Findings: The Project site is located 0.5 mile west from the closest school, which is Taft Elementary School, located at 500 Keller Avenue, Santa Ana. Thus, the proposed Project would not be within one -quarter mile of an existing school (Draft Supplemental EIR at p. 5.6-25). Construction Project construction would involve the use and disposal of various hazardous materials. However, all storage, handling, use, and disposal of these materials are regulated by federal and state regulations that are implemented by the City of Santa Ana during construction permitting, such as those included as PPP HAZ-1 and PPP HAZ-2. In addition, Mitigation Measure HAZ-1 would ensure that contaminated soils are not released into the environment. Also, the hazardous materials would travel to and from the site from the 1-405 freeway and South Bristol Street, which is not in the direction of the school facilities. The freeway is located to the south and the closest school is located