@misc{indiciaeec218f49863c,
  title = {Prediction of the probability of elevated nitrate concentrations at groundwater depths used for drinking-water supply in the Puget Sound basin, Washington, 2004–19},
  author = {Robert W. Black and Elise E. Wright and Valerie A.L. Bright and Alexander O. Headman},
  year = {2023},
  doi = {10.3133/sir20235117},
  url = {https://pubs.usgs.gov/publication/sir20235117},
  note = {Source identifier: sir20235117}
}