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_ Task 5.5 -Paleontological Identification/Evaluation Report Caltrans now expects environmental studies to address paleontological resources. U.S. Geological Survey mapping indicates that the majority of the US 101/Woodside Road project area is within historic artificial fill and Bay Mud, which minimizes the potential for presence of paleontological resources. CONSULTANT will document the geologic deposits at the site with respect to paleontological sensitivity, obtain a fossil localities search from the University of California, Museum of Paleontology (UCMP), and prepare a short Paleontological Identification/Evaluation report using standard specifications and other stewardship measures to avoid or minimize impacts. Preparation of a detailed Paleontological Mitigation Plan in accordance with Volume 1, Chapter 8 of the Caltrans Standard Environmental Reference is not included in this scope. Task 5.6-Hazardous Materials Hazardous materials sites have been recorded on Blomquist Street in the immediate project vicinity as well as on Woodside Road, Seaport Boulevard, and Bayshore Road. In addition, soils adjacent to the US 101 mainline and ramps may have been affected by aerially deposited lead from vehicle exhaust prior to the phase-out of lead in gasoline. The assessment will focus on the right-of-way and adjacent properties. An Initial Site Assessment (ISA) would be prepared to evaluate existing information regarding hazardous materials and wastes in the study area. Tasks to be completed during the ISA process are a records search of site databases to document known contaminated sites, historical land use research to identify former land uses at or adjacent to the study area associated with hazardous material use, a review of previous environmental investigations at and near the study area, and a field reconnaissance. The regulatory environment for hazardous materials, including regulatory agency framework and the DTSGCaltrans Aerially Deposited Lead Variance,will be described. Task 5.7-Noise Study A noise study is required when new interchange lanes or ramps are proposed (Type 1 project). The study will evaluate project-related changes in the noise environment as it would affect existing land uses and planned development, in accordance with Caltrans and FHWA criteria. Development adjacent to US 101 is mainly commercial and industrial, which are not considered highly sensitive to noise. However, the mobile home park to the west of the US 101/Woodside interchange and the Bay Trail along Seaport Boulevard north of Blomquist Street would be considered noise-sensitive land uses that require evaluation. Noise measurements will be collected at a limited number of representative receptor locations. Traffic noise modeling will be performed to predict future noise levels in accordance with FHWA/Caltrans guidelines. Preparation of the noise study will include the following steps: • Identify sensitive receptors and potential new development areas based on requests for potential planned or approved new development. • Conduct long-term (i.e., 24 hour) and short-term exterior noise surveys to document existing noise levels at outdoor use locations. ATTY/AGR/2013.164/URS PROFESSIONAL SERVICES AGR REV:10-15-13 VR Page 43 of 78