This is summary of a case study. The tribes wish to maintain the integrity of their streams and the high quality of Flathead Lake, the largest natural freshwater lake in the western United States. Common pollutants threaten the quality of these waters. The tribes have established a water quality standards program to preserve the high quality waters and restore those that have been degraded.
US EPA (2006): Case Studies in Tribal Water Quality Standards Programs. Confederated Salish & Kootenai Tribes of the Flathead Reservation. Washington, DC: Environmental Protection Agency (EPA) URL [Accessed: 02.05.2019]