This project aims to develop a mobile application (app) with geographical/mapping features, where communities along the Rio Grande or its tributaries, can report environmental concerns that directly affect the water quality of these water sources. The app will serve as a tool to improve communication between these communities and Mexico’s water regulating agencies. Residents of these communities will be able to take part in water surveillance and report any water quality concerns, in turn regulating agencies will be able to send mass notifications when water quality may be affecting public health. A series of in-person workshops, along with online virtual training will be provided to the communities of Chihuahua, Piedras Negras, Monterrey and Reynosa, to educate them on the use of the app.