INL hot cells once again prove value for EM waste treatment mission Published INL hot cells once again prove value for EM waste treatment mission IDAHO FALLS, Idaho (KIFI) – The Department of Energy Office of Environmental Management’s (EM’s) use of repurposed, Cold War-era hot cells at the Idaho National Laboratory (INL) Site continues to pay big dividends by allowing workers to address some of the most challenging waste types at the Idaho Cleanup Project. Crews with EM INL Site cleanup contractor Fluor Idaho recently received a drum full of concrete at the Idaho Nuclear Technology and Engineering Center (INTEC) from the Advanced Mixed Waste Treatment Project (AMWTP). Surveys indicated a radiological source within that concrete was remote-handled (RH) transuranic (TRU) waste, which is defined as having an activity level greater than 200 millirems per hour on contact. AMWTP crews discovered the solid concrete inside the drum during characterization activities.