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SUNOL BOULEVARD/I-680 IMPROVEMENTS PA&F.D Sensitive receptors in the project area include single-family residences, a golf course, and a church. The NSR will evaluate existing and future noise levels,with and without the project, and evaluate noise abatement alternatives in accordance with the TNAP. Project- related noise level changes to up to six sensitive receptors that are within 500 feet of the project footprint will be evaluated for the NSR. In addition,the NSR will address the potential for construction vibration impacts to nearby structures, including the biotechnology research facility northeast of the interchange. Subtask 4.10 Paleontology. Surface geology in the project area includes Pleistocene alluvial fan deposits and Livermore Gravels (Pleistocene/Pliocene). Both are considered to have high sensitivity—or potential to contain significant vertebrate, invertebrate,or plant fossils based on the tripartite scale set forth in Chapter 8 of the Caltrans Standard Environmental Reference. Both Build Alternatives would have similar potential to encounter paleontological resources. The project area has been surveyed and analyzed for paleontology by recent projects, including the I-680 Express Lanes from State Route 84 to Alcosta Boulevard Project(EA 04-0Q3000). A memorandum will be prepared that incorporates the Paleontological Evaluation Report/Mitigation Plan for EA 04-0Q3000 by reference and identifies specific project construction processes that have potential to encounter paleontological resources; document locations where monitoring or other measures should be implemented; and recommend recovery practices,decision thresholds, and reporting during and after construction. Subtask 4.11 Climate Change and Energy. Climate change will be addressed in the environmental document following current Caltrans guidance and will include quantitative analyses of construction and operational greenhouse gas emissions developed as part of the Air Quality Impact Assessment. The project area is not in the Coastal Zone or in area subject to sea level rise. This will be documented in the environmental document. Direction provided by Caltrans in October 2019 states that quantitative energy analyses must be provided for congestion relief projects for which CEQA Initial Studies are prepared. A quantitative analysis will be prepared based on VMT data for the Build Alternatives from the Traffic Operations Analysis Report. The results will be documented in the environmental document. Subtask 4.12 Water Quality Assessment Alameda Creek is the direct receiving water body,with the South Bay as the ultimate downstream receiving water body. Both of these are included under the 2010 Federal Clean Water Act(CWA) Section 303(d)List of Water Quality Limited Segments. Additionally,the beneficial uses of both are included as part of the San Francisco Bay Regional Water Quality Control Board Region 2 Basin Plan. The project falls under the jurisdiction of Region 2. April 10,2020 16