More than two decades after the U.S. Army Corps of Engineers began cleaning up World War I-era contamination from Spring Valley and American University, the Army has said its work in the neighborhood is mostly complete. But last week, officials reported that some century-old munitions might remain in the area, and that some residents may be living in properties where there is an “unacceptable risk” from hazardous chemical contamination in the soil ... During World War I, American University hosted the U.S. Army’s main chemical warfare testing station. Munitions tests, and the postwar burial of various hazardous materials, contaminated areas of the campus and the surrounding woods, which subsequently became the Spring Valley community ...
“I suspect there could be some people who will be very upset,” Dan Noble, who is in charge of the Army’s cleanup efforts, said at the meeting, noting that it might take several years to remediate a contaminated property ... Among the chemicals that could be found at a dangerous level in the soil are arsenic, mustard, lewisite, cobalt, certain heavy metals, antimony and a group of three polycyclic aromatic hydrocarbons.
Northwest Current
January 21, 2015