@misc{indiciae3502b996331a,
  title = {Review of Trace-Element Field-Blank Data Collected for the California Groundwater Ambient Monitoring and Assessment (GAMA) Program, May 2004-January 2008},
  author = {Lisa D. Olsen and Miranda S. Fram and Kenneth Belitz},
  year = {2010},
  doi = {10.3133/sir20095220},
  url = {https://pubs.usgs.gov/publication/sir20095220},
  note = {Source identifier: sir20095220}
}