More than three decades after the Clean Water Act was supposed to make America’s waters clean enough for swimming and fishing, two iconic waterways — the great coastal estuaries of Puget Sound and the Chesapeake Bay — remained in perilous condition. (Aired 2009)

In this 2009 documentary, FRONTLINE correspondent Hedrick Smith examines why it’s so hard to keep our waters clean. Through interviews with scientists, environmental activists, corporate executives, and average citizens impacted by the burgeoning pollution problem, Smith reveals that a growing environmental threat came not from the giant industrial polluters of old, but from chemicals in consumers’ face creams, deodorants, prescription medicines and household cleaners that found their way into sewers, storm drains and eventually into America’s waterways and drinking water.