@misc{indiciae1843857ed4a5, title = {Stability of low levels of perchlorate in drinking water and natural water samples}, author = {S.J. Stetson and R. B. Wanty and D.R. Helsel and S. J. Kalkhoff and D.L. Macalady}, year = {2006}, doi = {10.1016/j.aca.2006.03.030}, url = {https://pubs.usgs.gov/publication/70030376}, note = {Source identifier: 70030376} }