@misc{indiciaecb9e3d8425a0,
  title = {Groundwater quality in the Piedmont and Blue Ridge crystalline-rock aquifers, eastern United States},
  author = {Bruce D. Lindsey},
  year = {2017},
  doi = {10.3133/fs20173040},
  url = {https://pubs.usgs.gov/publication/fs20173040},
  note = {Source identifier: fs20173040}
}