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SUNOL BOULEVARD/I-680 IMPROVEMENTS PA&FD Exhibits and a presentation will be prepared for a Caltrans constructability review meeting. Details will be prepared for critical construction areas to demonstrate project constructability, and will be presented at the meeting. TMP elements will be highlighted and presented, together with lane closure and detouring elements. Comments from the meeting will be addressed and incorporated as applicable. A second constructability review meeting will be held, if needed, to obtain approval on this key element. Subtask 5.4 Storm Water Data Report CONSULTANT will prepare a Storm Water Data Report summarizing the Project impacts to water quality, general minimization measures, and recommended best management practices (BMPs). Our study will address only the impacts from the roadway improvements, and we will utilize Caltrans' standard checklists. CONSULTANT will propose conceptual minimization measures that meet the criteria set by the Regional Water Quality Control Board and Caltrans NPDES Permit. Additionally, CONSULTANT will address the need for erosion control measures. CONSULTANT will also prepare a preliminary hydromodification assessment to determine the magnitude of the impacts and the need for minimization. CONSULTANT will propose conceptual minimization measures that meet the criteria set by the Regional Water Quality Control Board and Caltrans NPDES Permit. Additionally, CONSULTANT will address the need for erosion control measures. Stormwater treatment measures within Caltrans, San Mateo County, and CITY will be presented in the Project Storm Water Data Report. Subtask 5.5 Drainage Impact Study Report and HydroModification Memo CONSULTANT will coordinate with Caltrans, CITY staff, and adjacent projects; review as-built plans,previous studies, and proposed improvements to determine existing drainage patterns; and assess potential impacts to, or deficiencies of, existing storm drain systems in the project area. CONSULTANT will assess needed drainage improvements to serve the new facility including requirements for future development along the corridor. CONSULTANT will assess opportunities for storm water management and water quality solutions to minimize environmental impacts by the project. CONSULTANT will perform necessary hydrologic and hydraulic analyses, conceptual drainage design and cost estimate for proposed drainage improvements. CONSULTANT will summarize the findings in a Drainage Impact Study Report. CONSULTANT will prepare a Hydromodification Memo,which will document and state that the Project is exempt from hydromodification mitigation due to the Project being in tidally-influenced and developed surroundings. Subtask 5.6 Location Hydraulic Study Based on CONSULTANT's preliminary qualitative hydrologic, hydraulic,and geomorphic assessments, the Project may potentially result in a significant floodplain encroachment. CONSULTANT will prepare Location Hydraulic Study and Floodplain Evaluation Report Summary to document the investigation and determine the specific impacts to the floodplain. Subtask 5.7 Advanced Planning Studies (APS) /1p)// 10, 202019