@misc{indiciaeb7ef99a9bbbb,
  title = {Quality of ground water for selected municipal water supplies in Iowa, 1997–2002 water years},
  author = {Gregory R. Littin},
  year = {2004},
  doi = {10.3133/ofr20041048},
  url = {https://pubs.usgs.gov/publication/ofr20041048},
  note = {Source identifier: ofr20041048}
}