Officials testing for possible radiation leak at New Mexico military nuclear waste site

“WIPP doesn’t accept high-level waste or spent fuel rods. It was built to contain the relatively low-level radioactive clothing, tools, pipes, rags, debris, concrete, and dirt contaminated with plutonium at military bomb building facilities like Rocky Flats, Colo., and Savannah River, South Carolina.”

Yeah, there are better sources, but this quote was nice and succinct.