Sofia Martinez has a B.S in Environmental Engineering from Drexel University. For her senior design project, she produced a sustainable landfill management strategy for a retired impoundment formerly belonging to DuPont, aiming to reduce the flow of groundwater through the unlined landfill and prevent leachate containing organic material from mobilizing naturally occurring arsenic in the soil. The design included a slurry wall, cap, pollinator garden, and in-situ sodium permanganate injection system. At Drexel’s chapter of Engineers Without Borders, she worked on multiple domestic and international projects, including a pipe replacement project in Ecuador and a latrine design/implementation project in Guatemala. She traveled to Guatemala to create a base plan for the latter project and coordinated with CBOs and local government to secure funding for the project. She also worked on the start-up of the Back River Wastewater Treatment Plant in Baltimore, conducting electrical and mechanical start-up of equipment and the headworks facility and creating Operating & Maintenance manuals for on-site equipment. She has additional experience working on the Willamette River superfund site in Portland, Oregon, creating a list of contaminants of concern (COCs) found on site and evaluating position papers submitted by potentially responsible parties. Prior to joining Trussell, she consulted on projects for the Philadelphia Water Department’s division of green stormwater infrastructure (GSI), designing sustainable sewer retrofits for the city of Philadelphia’s Green City Clean Waters plan in order to address its long-standing issue with combined sewer overflows.