CDW, as part of the design team, is responsible for identifying the required environmental permitting and conducting a hazardous material assessment for this MBTA project. CDW conducted research to evaluate potential environmental impacts and reviewed the rehabilitation project alternatives to assess the potential federal, state, and local environmental permits and reviews. This assessment provides the decision makers with the potential effects each option has on the project timeline and budget. For this project, CDW identified federal and state endangered species and their associated habitat as being potentially impacted. CDW will prepare all federal, state, and local permits required for the project.