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High probability excavation work under the second tent location began again Dec.1. Many in the community are aware that we encountered numerous challenges under the first tent location, which impacted our schedule.  The current  project schedule indicates that we will complete high probability work in winter 2016/2017. Then the remaining low probability work would start in the winter of 2017, with an estimated completion in the spring of 2017. Site restoration would follow, and the property returned to American University in the summer of 2017. The 2017 completion date forecasted in this revised schedule assumes that we will encounter the same types of delays and roadblocks that we did during the first tent location. The schedule for completion will always be fluid and can change either direction, depending on what we encounter under the next two tent locations. Our goal, however, is to continue to work safely and effectively so that we can finish earlier than 2017.

Spring Valley Overview

The Spring Valley Formerly Used Defense Site (FUDS) consists of approximately 660 acres in the northwest section of Washington, D.C. During the World War I‐era, the site was known as the American University Experiment Station, and was used by the U.S. government for research and testing of chemical agents, equipment, and munitions. Today, the site encompasses approximately 1,600 private properties, including several embassies and foreign properties, as well as the American University and Wesley Seminary.

Project Efforts

Project Update

4825 Glenbrook Road


Community Participation



The U.S. Army Corps of Engineers, Baltimore District has the lead responsibility for investigation and cleanup actions at the Spring Valley FUDS and has entered into a formal partnering process with the U.S. Environmental Protection Agency and the Washington, D.C. District Department of the Environment. The three organizations, referred to as the partners, have agreed to prioritize the project work by risk, addressing the highest risks first. The Corps investigation includes the identification and removal of arsenic‐contaminated soil, a groundwater investigation, and the search for additional munitions, both in burial pits and isolated items on residential properties.

Information Repository

The Information Repository is located at the Tenley-Friendship Branch Library, 4450 Wisconsin Ave. N.W., Washington, D.C.  Hard copies and digital records of key project documents can be found upstairs in the Reference Section.  The document collection includes a variety of materials created since the start of the project, 20 years ago. Check with the reference librarian to direct you to our shelves of materials.

Also, on your next visit to the library, ask at the Reference Desk for the Spring Valley FUDS large binder, which has a table of contents and almost a hundred disks that contain years of digital records available for research and review. These disks must be checked out from the librarian and are only available for use on the library’s public computers during your visit.  If there is a piece of information you cannot locate in the library, please contact the Community Outreach Team at 410-962-0157.

Additional archived documents not found in the library or here on the Web site can be found at http://springvalley.ertcorp.com.

Contact Information

Baltimore District Corporate Communication