@misc{indiciaefda18d821425,
  title = {Groundwater quality in the Redding–Red Bluff shallow aquifer study unit of the northern Sacramento Valley, California},
  author = {Jennifer S. Harkness and Jennifer L. Shelton},
  year = {2020},
  doi = {10.3133/fs20203025},
  url = {https://pubs.usgs.gov/publication/fs20203025},
  note = {Source identifier: fs20203025}
}