@misc{indiciaedf39d5e8b729,
  title = {Size and performance of anoxic limestone drains to neutralize acidic mine drainage},
  author = {C.A. Cravotta},
  year = {2003},
  doi = {10.2134/jeq2003.1277},
  url = {https://pubs.usgs.gov/publication/70025813},
  note = {Source identifier: 70025813}
}