@misc{indiciaed30f1ad50eb5,
  title = {Quality of ground water used for selected municipal water supplies in Iowa, 1982-96 water years},
  author = {B.D. Schaap and S. M. Linhart},
  year = {1998},
  doi = {10.3133/ofr983},
  url = {https://pubs.usgs.gov/publication/ofr983},
  note = {Source identifier: ofr983}
}