“Flow of Life” In 1972, Congress passed the Clean Water Act with the goal of making all U.S. waters “fishable and drinkable” within the next ten years. In the two decades that followed, the nation’s waters did grow healthier, but the promise of the Clean Water Act has yet to be realized. Today, more than half of U.S. rivers and streams are listed in ‘poor condition’—and these are the same waters that many of us rely on for drinking water and recreation. The Stroud Water Research Center is leading the effort to find ways to make the Clean Water Act a reality. Over the last half a century, Stroud’s research has made significant contributions to policies protecting our nation’s streams and wetlands, storm water management systems, and drinking water sources. Stroud scientists continue to work on the critical questions of our time, including the relationship between land use, water quality, and climate change. We join them now at Stroud’s headquarters on White Clay Creek in Avondale, Pennsylvania.