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

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excavation and grading during construction of the proposed Project has the potential to impact paleontological resources. As such, impacts to paleontological resources within the Project site are potentially significant. Therefore, GPU FEIR Mitigation Measures GEC-2 and GEQ-3 would be required to confirm onsite sediments and provide measures in the case that a fossil is discovered onsite. In addition, Mitigation Measures PALEQ-1 through PALED-3 have been included to retain a qualified paleontologist prior to the start of excavation, provide paleontological resources sensitivity training, and monitor the site for excavations below 20 feet bgs. Mitigation Measure PALE?-4 has been included to identify and catalog any significant fossils and Mitigation Measure PALE4-5 has been included to prepare a Paleontological Resources Monitoring Report that summarizes the findings. Thus, with implementation of GPU FEIR and Project -specific mitigation measures, impacts related to paleontological resources 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 paleontological resources would be less than significant with the implementation of mitigation (Draft Supplemental EIR at p. 5.4-12). Mitigation Measures: GPU FIER MM GEo-2: Low -to -High Sensitivity. Prior to issuance of a grading permit for projects involving ground disturbance in previously undisturbed areas mapped with "low- to -high" paleontological sensitivity (see Figure 5.6-3), the project applicant shall consult with a geologist or paleontologist to confirm whether the grading would occur at depths that could encounter highly sensitive sediments for paleontological resources. If confirmed that underlying sediments may have high sensitivity, construction activity shall be monitored by a qualified paleontologist. The paleontologist shall have the authority to halt construction during construction activity as outlined in Mitigation Measure GEO-3. GPU FEIR MM GEo-3: All Projects. In the event of any fossil discovery, regardless of depth or geologic formation, construction work shall halt within a 50-foot radius of the find until its significance can be determined by a Qualified Paleontologist. Significant fossils shall be recovered, prepared to the point of curation, identified by qualified experts, listed in a database to facilitate analysis, and deposited in a designated paleontological curation facility in accordance with the standards of the Society of Vertebrate Paleontology (2010). The most likely repository is the Natural History Museum of Los Angeles County (NHMLA). The repository shall be identified, and a curatorial arrangement shall be signed, prior to collection of the fossils. MM PALEo-1: Retention of a Oualified Paleontologist. Protect plans, grading specifications, and construction permitting shall ensure that prior to the start of excavation, the client shall retain a Qualified Paleontologist who meets the professional criteria established by the Society of Vertebrate Paleontology (SVP 2010) to oversee the implementation of all paleontological resources mitigation requirements for the proposed Project. MM PALEo-2: Paleontological Resources Sensitivity Training. Project plans, grading specifications, and construction permitting shall ensure that prior to the start of excavations, the Qualified Paleontologist, or their designee, shall conduct paleontological resources awareness training for onsite personnel. The training session shall focus on how to identify paleontological resources that may be encountered during excavations and the procedures to be followed in the event of their discovery.