FILE - In this March 15, 2016 file photo, Virginia Tech environmental engineering professor Marc Edwards testifies in Washington, to examine the ongoing lead water crisis in Flint, Michigan. Scientists say municipal water in Flint, has gotten much better in recent months and is safe for handwashing, showering and bathing. A team led by Edwards provided an update Tuesday May 31, 2016 on results of sampling from homes and buildings in the city, where the water became tainted with lead. (AP Photo/Andrew Harnik, File)

Use Information This content is intended for editorial use only.
For other uses, additional clearances may be required.