One year after Hurricane Helene’s floodwaters swept 13 containers of a hazardous chemical into the New River from a warehouse at the Radford Army Ammunition Plant, the search continues for the last three continues.

Meanwhile, plant officials say they plan to relocate the warehouse and seven others, moving warehouses out of the floodplain to prevent reoccurrence of the incident that released at least 1,575 gallons of dibutyl phthalate, a colorless, oily liquid used in the manufacture of propellants.

Most of the material held in the warehouses has already been moved.

On Sept. 27, severe flooding ripped open the doors of one warehouse and carried away the 275-gallon plastic containers, known as totes.

An extensive search over the next six months led to the discovery of 10 totes. Some were

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