@misc{indiciae5f69259d6e39,
  title = {Chemical quality of ground water in San Joaquin and part of Contra Costa Counties, California},
  author = {Stephen K. Sorenson},
  year = {1981},
  doi = {10.3133/wri8126},
  url = {https://pubs.usgs.gov/publication/wri8126},
  note = {Source identifier: wri8126}
}