Samples taken from Cape Canaveral, Florida – home to Department of Defense and National Aeronautics and Space Administration facilities – had a 176 ppt concentration on the TOF test. The EPA 537 test only showed a 15 ppt concentration.
A water sample from Madison, Wisconsin measured 83 ppt using EPA 537, but TOF testing revealed a 191 ppt concentration. Another water sample from Navassa, North Carolina returned 45 ppt when tested using the older method, but showed a high concentration of 231 ppt on the newer test.
Kyla Bennett, policy director of the nonprofit group Public Employees for Environmental Responsibility, said the EPA “is doing the bare minimum it can and that’s putting people’s health at risk.