Lake Erie's Sterling State Park had been dangerously polluted by septic-tank wastes for eight years when this photo was made in 1968, but—despite warning signs—the state of Michigan still permitted swimming. Alfred Eisenstaedt - The LIFE Picture Collection/Getty Images

Photos by Alfred Eisenstaedt of the Great Lakes Before the Clean Water Act

By Lily Rothman and Liz Ronk  |  TIME Magazine In 1968, LIFE magazine dispatched photographer Alfred Eisenstaedt to the Great Lakes to capture a crisis that required no national awareness day to make … Continue reading Photos by Alfred Eisenstaedt of the Great Lakes Before the Clean Water Act