Water for Humans is a nonprofit leading water treatment and reuse projects to improve water quality in Etla Barrio Bajo, Oaxaca. Water for Humans is acting as the project manager to improve wastewater treatment systems in the community. Their principal partners in this work are municipality of Barrio Bajo and government agencies for funding; INSO for on-the-ground project coordination; NSI for project design, operation and maintenance guidance; and the UABJO Chemistry Department for water quality analysis.