@misc{indiciae887ecfd5634f,
  title = {Depth of groundwater used for drinking-water supplies in the United States},
  author = {James R. Degnan and Leon J. Kauffman and Melinda L. Erickson and Kenneth Belitz and Paul E. Stackelberg},
  year = {2021},
  doi = {10.3133/sir20215069},
  url = {https://pubs.usgs.gov/publication/sir20215069},
  note = {Source identifier: sir20215069}
}