 She undertook her master's project on biosand filter technology with Dr. David Manz and they then co-founded CAWST in 2001 to transfer this technology to poor countries.In 2011 she stepped down from her role as CEO of CAWST but continued to work on research projects for CAWST.The goal of CAWST is to provide education, technical training and consulting in water and sanitation to the NGOs and government agencies working with the poor in developing countries to remedy the lack of engineering expertise within the sector.