@misc{indiciae1941d5093362,
  title = {Perchlorate data for streams and groundwater in selected areas of the United States, 2004},
  author = {Stephen J. Kalkhoff and Sarah J. Stetson and Kris D. Lund and Richard B. Wanty and Gregory L. Linder},
  year = {2010},
  doi = {10.3133/ds495},
  url = {https://pubs.usgs.gov/publication/ds495},
  note = {Source identifier: ds495}
}