Mei-Li Hey is a third-year PhD student at Johns Hopkins Bloomberg School of Public Health in the Department of Environmental Health and Engineering. She earned her master's in engineering from UCLA and completed a BS/BA in mechanical engineering from the University of San Diego. Prior to joining the PhD program’s Environmental Sustainability, Resilience, and Health (ESRH) track, Mei-Li worked as a Mechanical Design Engineer on NASA’s James Webb Space Telescope. In 2020, Mei-Li founded Atwero, a nonprofit organization that aims to deliver pit latrine assistive devices for people with disabilities and currently operates out of Uganda. Through this work, she became passionate about environmental health and health equity. Mei-Li’s dissertation work focuses on assessing and improving drinking water quality on the Navajo Nation and is conducted in collaboration with the Center for Indigenous Health. Mei-Li’s current work sits at the intersection of engineering, environmental health, and implementation science with a particular emphasis on policy and technology innovations to improve access to safe drinking water.