Navajo utility fined for violating Clean Water Act

The fine was announced Tuesday by the U.S. Environmental Protection Agency and its counterpart on the Navajo Nation.

Under settlements with the agencies, the Navajo Tribal Utility Authority must bring its Window Rock treatment plant into full compliance by the end of the year. The utility also agreed to build new infrastructure for the treatment plant.

The EPA says an inspection revealed that the tribal utility had been sending too many pollutants into the Black Creek, a tributary of the Puerco River, since at least 2011. The tribe’s Water Quality program brought an enforcement action.

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