To prevent acid mine drainage from sulfide mining into the Great Lakes.

H.R. 4933 is a legislative proposal designed to protect the Great Lakes from water pollution caused by certain types of mining operations. The bill would prohibit the federal government from issuing permits for sulfide mines located within five miles of any of the Great Lakes unless the operator can prove the project will not result in acid mine drainage. For citizens, this measure aims to safeguard local drinking water and aquatic ecosystems by ensuring that nearby mining activities do not release harmful acidic runoff into the Great Lakes basin.