Evan Thomas¹, Joseph A Needoba², Doris Kaberia³, John Butterworth⁴, Emily Caitlin Adams⁵, Phoebe Oduor⁶, Denis Macharia⁷, Faith Mithieu⁸, Robinson M Mugo⁶ and Corey Nagel⁹, (1)Boulder, CO, United States, (2)Oregon Health & Science University, School of Public Health, Portland, OR, United States, (3)Chief of Party, Nairobi, Kenya, (4)IRC WASH, Addis Ababa, Ethiopia, (5)NASA Marshall Space Flight Center, Huntsville, United States, (6)Regional Centre for Mapping of Resources for Development, Nairobi, Kenya, (7)Regional Center for Mapping Resources for Development, Nairobi, Kenya, (8)Regional Center for Mapping of Resources for Development, Nairobi, Kenya, (9)University of Arkansas, Fayetteville, United States