In the spring of 1945, a group of concerned citizens from the West Chester and Wilmington areas came together to listen to Clayton M. Hoff – the man would later become known as the founder of the small watershed movement in America – talk about the water quality of the Brandywine Creek.
Learning that the creek was not much more than an open sewer at the time, in addition to thousands of tons of soil being washed into the creek each year (diminishing the water quality and choking wildlife), the citizens decided to band together to create the first small watershed organization in America. They called themselves the Brandywine Valley Association (BVA).