Oronogo Mining Belt Superfund Site

Impacted Soil Removal


Oronogo, Missouri




In Progress

Contract Value: 

$3.3 Million

Project Type: 

  • Aerial view of project site
  • Material placement in quarry pit
  • Impacted Soil Removal

GR2 was responsible for the excavation, removal, capping and grading of over one (1) million cubic yards of soils at the Oronogo site.

The site was comprised of three major segments: (1) East Side Uplands Area, (2) West Side Uplands Area, and (3) the Schoolhouse Area. The East and West areas are separated by Hwy MM, with the Schoolhouse Area located to the south of the West Side Area within the city limits of Oronogo, MO.

Excavation was performed using a combination of dozers, excavators, and motorized scrapers. Off-road dump trucks were used to transport contaminated material to some of the subsidence areas and the Quarry Pit.

This project is the largest sub-aqueous disposal project to date conducted in the United States.