The site was finally listed on July 22, 1987. The Weldon Spring Quarry/Plant/Pits (USDOE/Army) site covers  and is located between the Missouri and Mississippi Rivers. The site includes the  disposal area, the  abandoned Uranium Feed Materials Plant, various smaller properties, and the  former limestone quarry located 4 miles from the plant.
The Weldon Spring Quarry/Plant/Pits (USDOE/Army) site is located between the Missouri and Mississippi Rivers and covers an extensive area including the disposal area, the abandoned Uranium Feed Materials Plant, various smaller properties, and a former limestone quarry situated four miles from the plant.