324 Building
Addressing a Unique Cleanup Challenge Near the Columbia River
The 324 Building is a former radiological research facility built in the 1960s, located near the Columbia River and the Richland city limits.
Discovery of Soil Contamination
During preparations for the building’s demolition, a spill of highly radioactive material was found in the soil beneath the facility. This contaminated area is identified as the 300-296 Waste Site.
While analysis shows that the contamination is stable and not migrating toward groundwater or the Columbia River, remediation remains a priority due to the site’s location.
Initial Excavation Plans and Additional Findings
The original plan involved remotely excavating the contaminated soil.
However, during installation of micropiles beneath the facility’s hot cell, additional contamination was discovered, prompting a reevaluation of the cleanup approach.
Revised Remediation Strategy
The U.S. Department of Energy (DOE), Central Plateau Cleanup Company, and the U.S. Environmental Protection Agency (EPA) are finalizing a new plan that includes:
Deactivating the 324 Building
Demolishing the structure
Constructing a superstructure over the remaining foundation
Remediating the contaminated soil beneath the foundation
Why It Matters
The 324 Building’s proximity to the Columbia River and the city of Richland makes this cleanup project critical to protecting both the environment and the surrounding community.