@misc{indiciaea347c0574aae,
  title = {Tools for groundwater protection planning: An example from McHenry County, Illinois, USA},
  author = {R. C. Berg and B. Brandon Curry and R. Olshansky},
  year = {1999},
  doi = {10.1007/s002679900189},
  url = {https://pubs.usgs.gov/publication/70022080},
  note = {Source identifier: 70022080}
}