@misc{indiciae94a6710f9f13,
  title = {Relations that affect the probability and prediction of nitrate concentration in private wells in the glacial aquifer system in the United States},
  author = {Kelly L. Warner and Terri Arnold},
  year = {2010},
  doi = {10.3133/sir20105100},
  url = {https://pubs.usgs.gov/publication/sir20105100},
  note = {Source identifier: sir20105100}
}