@misc{indiciaeaef8ee229fb2,
  title = {Geospatial data to support analysis of water-quality conditions in basin-fill aquifers in the southwestern United States},
  author = {Tim S. McKinney and David W. Anning},
  year = {2009},
  doi = {10.3133/sir20085239},
  url = {https://pubs.usgs.gov/publication/sir20085239},
  note = {Source identifier: sir20085239}
}