 All solid waste is disposed in approved landfill facilities in Pierre and Pukwana, South Dakota.The Lower Brule Sioux Tribe, in coordination with the Indian Health Service, operates a sewage disposal and treatment system for the towns of Lower Brule and West Brule.The major treatment for wastewater is evaporation and settling in evaporation and settling ponds in two lagoon areas; the system uses limited aeration.