Herbert C. Hoover Building Exterior Improvements

Herbert C. Hoover Building Exterior Improvements

The U.S. General Services Administration (GSA) has prepared a Supplemental Environmental Assessment (EA) to assess and evaluate the potential environmental impacts that could result from the exterior improvements at the Herbert C. Hoover Building (HCHB), located at 1401 Constitution Avenue, NW, Washington, DC.  The Supplemental EA was prepared pursuant to the National Environmental Policy Act (NEPA) of 1969, the Council on Environmental Quality Regulations for Implementing NEPA (40 CFR 1500-1508), GSA Order ADM 1095.1F: Environmental Considerations in Decision Making, and GSA’s Public Buildings Service NEPA Desk Guide.  The purpose of and need for the proposed action are to enhance the building and building site and provide Level IV protection for the facility.  GSA has determined that a Finding of No Significant Impact (FONSI) is appropriate for this action.

In 2010, GSA prepared an EA that analyzed the environmental impacts that could result from the exterior improvements at the HCHB.  The proposed action analyzed in the 2010 Final EA included accessibility improvements, a new entrance for the National Aquarium (NAQ), and permanent perimeter security measures.  In April 2010, GSA issued a Finding of No Significant Impact (FONSI) specifically for the accessibility improvements and NAQ entrance, as these actions were found to have independent utility from the perimeter security elements and could be implemented regardless of the perimeter security elements.  In the 2010 FONSI, GSA noted that the decision to issue a FONSI for the new NAQ entrance and accessibility improvements would not effect, influence, or prohibit any future determinations on the design or location of perimeter security.  Additionally, GSA indicated in the 2010 FONSI that the proposed perimeter security elements would be subject to additional NEPA analysis and/or documentation.

In the 2010 Final EA, two alternative locations for perimeter security were analyzed.  Since the April 2010 FONSI, GSA, in cooperation with U.S. Department of Commerce (DOC), has undertaken extensive coordination with stakeholder agencies, including the National Capital Planning Commission, National Park Service, District of Columbia Department of Transportation, District of Columbia Office of Planning, District of Columbia Historic Preservation Office, and U.S. Commission of Fine Arts.  Through this coordination, GSA and DOC have refined the design concept for perimeter security at HCHB.  Because the refined design concept includes elements and alternate locations that were not analyzed in the 2010 Final EA, GSA has prepared a Supplemental EA.  The Supplemental EA builds upon the 2010 Final EA and includes the additional analysis that was noted in the April 2010 FONSI.  The Supplemental EA documents the direct, indirect, and cumulative impacts for four action alternatives and a no action alternative.  Additionally, GSA has consulted on the proposed action in accordance with Section 106 of the National Historic Preservation Act, 16 U.S.C. 470f.

Environmental Assessment: Public Involvement Opportunities

The FONSI was finalized on June 21, 2013. GSA, in its review of the public comments received in response to the Final Supplemental EA and FONSI dated May 16, 2013, has concluded that no information has come to light that leads to a contrary finding and an Environmental Impact Statement will not be prepared. 

In accordance with GSA's PBS NEPA Desk Guide and CEQ NEPA regulations, GSA is issuing revisions to make minor changes and updates of a technical or editorial nature that should be acknowledged, while not making any substantive changes to the Supplemental EA or FONSI (GSA NEPA Desk Guide, 8-1, 40 CFR 1502.9(c)(1)(i)(ii).


The following documents are available for download:

HCHB 2013 Supplemental EA Revisions Sheet



Final HCHB May 2013 Supplemental EA




Last Reviewed 2014-10-29