EPA

A coalition of conservation groups has sued the Environmental Protection Agency. The groups say the EPA hasn’t lived up to its obligation to force states to reduce air pollution.

Several conservation and tribal groups plan to sue the Environmental Protection Agency. They say the EPA hasn’t lived up to its obligation to require states to reduce air pollution.

A return to in-person classes at a Navajo Nation school will be on hold indefinitely because of unknown radiation levels, likely caused by decades of…

Federal authorities say a copper-producing company has been fined $33,000 for failing to comply with a U.S. Environmental Protection Agency settlement…

Federal officials say the Hopi Tribe has failed to meet a deadline to reduce arsenic in drinking water at the tribe’s cultural center.The Hopi Tribe…

Wastewater from a mine in southwestern Colorado has spilled into a river that was the site of a major spill caused by a government cleanup crew four years…

The Environmental Protection Agency has awarded a Navajo-owned company a contract to control erosion at an abandoned uranium mine on the reservation. It’s…

The Environmental Protection Agency has awarded the Navajo Nation nearly 90,000 dollars to study air quality in the town of Cove. KNAU’s Ryan Heinsius…

The U.S. Environmental Protection Agency is seeking proposals from small business to clean up abandoned uranium mines on the Navajo Nation and in…

Nearly 300 Navajo farmers and ranchers have filed a lawsuit over damages suffered from the 2015 Gold King Mine spill. KNAU’s Ryan Heinsius reports,…