The file posted on this page show a summary of the lab results for tests taken from January 2017 through August 2017. Please contact the Office of the President for previous results.

• Summary—Results from tests taken November 2016 through August 2017

Results are reported in parts per billion (ppb), which is equivalent to microgram per liter (ug/L). The U.S. Environmental Protection Agency Action Level is 15ppb. To view full reports, visit the Technical/Lab Results page.