A Single Drop for Safe Water (ASDSW) takes a social entrepreneurship approach by offering technical assistance and capacity building opportunities for communities, local government, and assistance organizations to design and implement affordable water and sanitation services. Since 2006, ASDSW has helped 140,000 people gain improved access to clean water by serving as a facilitator, capacity developer, and project manager that engages communities to prioritize sanitation issues early on, allowing them to take ownership and gain self-reliance for long-term benefits to community health. In this audio interview, Stanford Center for Social Innovation correspondent Sheela Sethuraman talks with ASDSW Executive Director Kevin Lee, the 2010 Tech Award winner in the Katherine M. Swanson Equality category, as he describes ASDSW’s work in the Philippines and beyond.