Arsenic = 124 ppm at Army's Monthly Partnering Meeting Site

Since May 2001, the US Army Corps of Engineers has hosted monthly meetings of the Spring Valley cleanup "partners" at its trailer-office on the federal property behind Sibley Hospital. This august body — including representatives from the EPA, DC Department of the Environment, American University, the Restoration Advisory Board and local elected officials — learned last November that the level of arsenic contamination outside the conference trailer measures 124 ppm, over six times the safety limit for the Spring Valley FUDS.
Blog Editor
WMD in DC  Arsenic removal for 4 contaminated grids along the federal property fence near the guard shack is tentatively scheduled for early 2011. Of these grids, 2 exceed the 43 ppm cleanup goal with concentrations of 58 ppm and 124 ppm arsenic ... USACE requested that arsenic grids on federal property with concentrations below 43 ppm be left in place, including 2 of the grids mentioned above as well as arsenic grids within the Dalecarlia Woods. USACE noted that the 43 ppm cleanup level is considered to be protective of human health on residential properties [instead of the 20 ppm standard], only if property access or landscaping issues interfere with soil removal. Although the presence of a fence and berm do not significantly interfere with removal of these grids, the 43 ppm cleanup level may be acceptable for grids on federal property.
Spring Valley Partners
Meeting Minutes
November 30, 2010 (pg. 14)