Federal crews have begun excavating a long-buried Cold War nuclear waste site in Armstrong County, Pennsylvania, ending decades of legal battles, health concerns and public pressure.
The disposal area near Apollo contains hundreds of 55-gallon drums of radioactive material buried in 10 trenches. The U.S. Army Corps of Engineers is leading a roughly half-billion-dollar remediation effort that will dig up contaminated soil and drums and move the material to a permanent underground repository in Utah.
Col. Nicholas Melin, commander of the Corps’ Pittsburgh District, said the agency is starting active remediation and emphasized that materials will be transported to permanent storage in Utah. He noted that more than $400 million has already been spent on planning and preliminary work, and that the full cleanup is being carried out at the speed of safety. The Corps estimates the project will take six to eight years.
Contractors will excavate the trenches in thin, controlled increments, removing soil in roughly six-inch layers with specially modified backhoes. Excavated material will be tested for radioactivity, placed in fabric liners, loaded into heavy-metal containers, and moved weekly to Wampum in Lawrence County for transfer to rail. From there the waste will be shipped to the underground repository in Utah.
Worksite protections include enclosed trench covers, continuous air monitoring and an on-site water treatment plant to prevent groundwater contamination. Melin said perimeter air and water monitors are the final layer of defense to ensure nothing escapes the work zone.
Local residents, many who grew up near the site, remain anxious despite the safeguards. Parks Township resident Steve Brown said neighbors are still worried about the scale and cost of the cleanup and its long-term implications.
The Army Corps cites concerns about nearby abandoned mines and the potential for contaminants to spread as key reasons for remediation. Officials say that once the excavation and cleanup are finished, the site will be restored to conditions comparable to a typical backyard, putting the area’s Cold War dumping legacy behind it.
The project follows years of public activism, reported cancer clusters and multimillion-dollar class-action settlements tied to the site’s historic use for disposing volatile material from local military and nuclear industry operations.