@misc{indiciae5a4ed60387b3,
  title = {Ground-Water Quality Data in the Upper Santa Ana Watershed Study Unit, November 2006-March 2007: Results from the California GAMA Program},
  author = {Robert Kent and Kenneth Belitz},
  year = {2009},
  doi = {10.3133/ds404},
  url = {https://pubs.usgs.gov/publication/ds404},
  note = {Source identifier: ds404}
}