Agmt21 Environmental Science Associates

Browse Search

Proposed Work Program June 2021 City of Redwood City / Gatekeeper Projects Subsequent EIR 11 environmental science associates projects. F&P will work with the City to determine which transit service improvements, such as High Speed Rail, we should account for in the rail schedule/gate down time. To the extent feasible we will utilize information and data collected from other relevant City studies, as well as build off the VISSIM model developed for the High- Speed Rail project and the South Main Circulation study. The fee for this task will be adjusted after assessment of available data and models. F&P will present level of service and queuing information for the crossings and adjacent intersections. Site Access and Circulation Analysis. F&P will provide a qualitative assessment of site-access and circulation considerations. For the individual Gatekeeper project sites, the site access and circulation review will occur when detailed site plans are available. TA Documentation. Fehr & Peers will prepare a TA report for the Gatekeeper projects. Each report will include text, graphics, and tables to describe the analysis methods and results, potential transportation impacts and adverse effects, as well as corresponding mitigation measures and required improvements. Utilities and Infrastructure Utilities and Infrastructure: The DTPP Final EIR determined all utilities/infrastructure impacts under the DTPP to be less than significant. The Gatekeeper Projects would accommodate an increase in development and population in the DTPP area, and consequently, would generate an increase in demand for utilities services, including water supply and distribution, wastewater collection and treatment, and stormwater collection. These effects will be addressed in the SEIR. With respect to water supply, the City serves as the water supplier for the City, including the DTPP area. The City is currently completing its 2020 Urban Water Management Plan (UWMP), and is expected to adopt its Final 2020 UWMP by June 2021. The analyses of potable and recycled water, wastewater collection and treatment, and stormwater collection and conveyance will be conducted by technical subconsultants. Each of these three scopes is presented below. Potable Water and Recycled Water (West Yost) West Yost’s scope is presented here in summary form. The detailed scope is provided in Appendix C. The analysis of potable water and recycled water will comprise four tasks: Task 1. Perform Water System Analysis: This task will entail an update of the City’s existing water system hydraulic model to include conceptual pipelines identified in the Preliminary Utility Study and allocate project demands (assumed to be calculated by others). Calibration of the model will be completed using field hydrant flow test data provided by the City. West Yost identify locations for new fire flow tests to be conducted by the City, which will also provide flow rates and pressure information at the SFPUC turnouts that supply the City’s Main Pressure Zone and the time of day that the tests were performed. West Yost will perform a minimum of three fire flow test calibrations of the hydraulic model, or up to four hours of model calibration, and will adjust roughness coefficients as needed. West Yost will work with the City to estimate the water demand in the Main City area and, if needed, zone demand based on seasonal and diurnal information developed for the Water Master Plan. The calibrated hydraulic model will be submitted to the City as an EPANET file. REV: 06-23-21 MI ATTY/AGR.2021.150/Environmental Sciences Associates (Gatekeeper Projects) (Page 21 of 58)