From Dave Brigham:
For decades, there was a site in Watertown, Mass., that seemed like it would never get cleaned up. While much of the former Watertown Arsenal complex was converted to offices, restaurants and even theater space, the place where workers dumped radioactive material generated at the arsenal took quite a bit more effort to clean up.
When I wrote about this site in May 2010 (see May 19, 2010, "Nuclear Dump Playground?"), there was a plan afoot to restore the spot back to wetlands and to install a walking trail through it.
I was dubious about that plan, but I'm glad to say I was wrong. The buildings have been knocked down, and the project is moving forward.
Read this article for more information on the site and its future.
Here are some before and after pictures.