Agmt22 Environmental Science Associates

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REV: 10-25-2022 RL Consultant shall also use utility, infrastructure, and other asset data collected and compiled by the County of San Mateo as part of its Sea-Level Rise Vulnerability Assessment. Consultant shall provide a list of specific data necessary, and acquisition of this data shall be coordinated by City Staff. Deliverables Consultant shall provide a brief memorandum summarizing the information collected and analyzed and identifying any missing or required information to complete this task. Consultant shall revise this memorandum to address any City Staff comments, and this final draft shall be included as a part of the Study Report (as defined in Task 4). Task 2.2 - Field Visit and Topographic Survey Consultant shall conduct a selective real time kinematics (“RTK”) Global Positioning System (“GPS”) topographic survey and collect data about the City shoreline and its flood management infrastructure. Consultant shall identify areas needing additional survey data by examining existing topographic data and recommendations from City Staff. Consultant shall notify City Staff of desire to access any private properties at least two weeks prior so that City Staff may coordinate access with the property owner. Consultant shall integrate and reconcile collected data with existing topographic data to create a GIS database that describes the shoreline and infrastructure within the coastal flood hazard zone. Deliverables Consultant shall deliver electronically survey data in the form of a geographic information system (“GIS”) layer with 3D raw data points. Consultant shall also provide data files and any documentation necessary to easily import and replicate this layer in the City’s GIS platform. Task 2.3 – Sea-Level Rise Vulnerability Assessment Consultant shall integrate newly collected survey data with available infrastructure data and expected future sea-levels along the shoreline to characterize sea-level rise vulnerability for the study area. Consultant shall delineate the shoreline into a limited number of reaches, such that each reach shares similar flooding vulnerabilities and management constraints. Consultant shall provide a qualitative assessment of sources of flood vulnerabilities for each shoreline reach and qualitative descriptions of increase in hazards over time, such as inundation and flooding, erosion damage, and local wave run- up and overtopping. Consultant shall also propose a standard starting point for flood protection and address how to increase in the future as sea level rises. This flood protection standard shall be developed in coordination with City Staff and to ensure sea level rise and flood protection alignment with adjacent areas of the Bay shoreline. Deliverables Consultant shall provide a brief memorandum discussing the site vulnerability assessment. Consultant shall revise this memorandum to address any City Staff comments, and this final draft will be included as a part of the Study Report. ATTY/AGR.2022.381/Environmental Science Associates (Page 12 of 17)