A pulp mill near Hinton, Alta., is facing environmental charges after failing to report the leak of a chemical into the air two years ago, according to the province.

West Fraser Mills Ltd. is charged with six counts under the Environmental Protection and Enhancement Act and one count under the Dangerous Goods Transportation and Handling Act.

The charges relate to the release of a substance into the air, failing to immediately report it, and failing to follow regulations while unloading chemicals from a truck.

The company is scheduled to appear in court Oct. 19.