Health and Human Services Secretary Robert F. Kennedy Jr. posted photos Sunday of him and his family swimming in Rock Creek where swimming is not allowed “due to high bacteria levels.”

Robert F. Kennedy Jr., the nation’s health czar, is shown bathing in Rock Creek, a D.C. stream that was flagged as polluted, on an outing with his grandchildren.

The U.S. Secretary of Health posted one photo of himself surrounded by his family as he fully immersed himself in the contaminated creek's water.