Growing up in Alexandria, Virginia, the Potomac River was a green nasty mess. Now it is MUCH improved. Via The National Archives, see this sign from 1973 recommending you seek immediate medical attention after prolonged exposure.
In his first statement since the now infamous Governor Ralph Northam yearbook photo surfaced, Lt. Gov. Justin Fairfax, the second African American ever elected to statewide office in Virginia, did not call for Northam's resignation.