“We wanted to create something that would not only impact our community, but the communities around us.” Bria Snell on Green Connections Radio. Before you drink from a school or public water fountain….At 17 years old, these Washington, DC high school girls won second place in the NASA OSPARC 2018 contest. Listen to Bria Snell and Mikayla Sharieff of Banneker High School describe their water filtration system to purify water in school water fountains — called “From H2NO to H2O” — and how they developed it.