Mesa Grande Water Department: Mesa Grande Tract II Water Systems and Black Canyon Water resources come from two independent community well systems. Well output serves the community’s residential areas, tribal offices and fire station, and the fire hydrants throughout the reservation. Water quality is managed by Watermasters Darrell Langley and Cory La Chusa. As part of their duties, they monitor and maintain water quality, deliver water to residents, and respond to water supply issues. Langley also serves as the Environmental Officer and tribal liaison to the federal Environmental Protection Agency (EPA).