Architect of the Capitol Site

The U.S. Army at Fort George G. Meade is planning to remediate the Architect of the Capitol (AOC) Site (Site). This web page provides information on the Site, preferred alternatives, and opportunities for public input.

Site History and Background

The Architect of the Capitol Site is a 93-acre parcel on the southeastern portion of Fort Meade. Rock Avenue is to the north, Route 32 to the south, Pepper Road to the east, and Remount Road to the west. The Army historically used the Site for a variety of purposes, including warehouses and storage for the Former Defense Reutilization and Marketing Office, a transportation motor pool facility, an electrical substation, and tractor trailer storage. Other areas identified on the property include a suspected fill area, a compost area, a gravel fill area, former railroad lines, and commissary warehouse area. There are underground storage tanks associated with a motor pool currently managed by the Army on the extreme western portion of the property.

The Army transferred the parcel to the Architect of the Capitol in 1994. The Architect of the Capitol uses the Site to accommodate long-term storage and service needs of the Library of Congress and other legislative branch agencies. No redevelopment or future land use for other purposes is presently planned.

Comprehensive Investigations Completed

The Army conducted environmental investigations of the Site dating back to the late 1980s, including sampling of the soil, surface water, sediment, and groundwater.  A soil vapor study and historical actions also include tank removals and remediation.

The Army completed a Remedial Investigation of the Site to determine if any residual contamination was present, and if so, whether the contamination presented a risk to human health or the environment. It also developed a Feasibility Study to look at alternatives for addressing any identified risks.

Two areas where elevated levels of lead were detected in the soil were identified as needing action. The investigations also found some detections of metals in shallow groundwater which could present a risk if the shallow water is used for drinking water in the future.

Remedy Selected to Provide Best Protection of Human Health and the Environment

The Army conducted a detailed analysis of various response alternatives and associated costs for the Site. The Army selected the alternatives of Excavation and Off-Site Disposal for soil and Land Use Controls and Long-Term Monitoring for groundwater, as they will best protect human health and the environment, is implementable and cost-effective, and satisfies the other selection criteria as required by law.  The selected alternatives include a five-year review as required by CERCLA to ensure it continues to be effective.

Under these alternatives, soil from two areas with elevated levels of lead would be excavated and the areas backfilled, graded, and seeded. The excavated soil would be disposed of at an appropriate off-site location.  Existing land use controls and institutional controls already in place at Fort Meade would be maintained and enhanced to restrict the use of the shallow groundwater. Groundwater would be monitored for metals..

Contact Information