"After a 10-month wait, preliminary work began Thursday on the delicate task of removing barrels sitting in Wallowa Lake marked as containing defoliants used in Agent Orange.
A contractor working for the U.S. Environmental Protection Agency started exploring the alpine lake’s bottom with side-scan sonar to learn more about what’s actually there.
The operation is in its early phases. A spokeswoman for the Oregon Department of Environmental Quality said work would continue for several days. Removal could begin Saturday, she said."