Chester Ridley Crum Watersheds Association (CRC) is a nonprofit 501(c)(3) organization devoted to the protection of water resources and the natural environment of the Chester, Ridley, and Crum Creek Valleys, and the health, recreational, and quality of life benefits they afford the residents of this region. Our stewardship area encompasses 132 square miles and 40 municipalities, from the South Valley Hills to the Delaware River.CRC's programs are supported by the contributions of over 550 individual, municipal, business, and institutional/ nonprofit members.