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OHS Organization and Contacts

Basic Information

OHS is located in the Ariel Rios North building, next to the Federal Triangle Metro stop.

If you would like to send an electronic mail please use our Contact Us page.

Office of Homeland Security

U.S. Environmental Protection Agency
Office of Homeland Security
1200 Pennsylvania Ave, N.W.
Mail Code 1109A
Washington, D.C. 20460

Phone: 202-564-6978
Fax: 202-501-0026

Associate Administrator of Homeland Security
Deborah Dietrich

Deputy Associate Administrator
Juan Reyes

OHS Staff
Caroline Brown, Staff Assistant
Margaret House, SEE Enrollee
Jim Knoy, Senior Advisor
John C. Martin, Intelligence Advisor/Special Agent
Lisa Nanko, Environmental Scientist
Cayce Parrish, Senior Advisor
Kate Perry, Attorney Advisor
Steven Williams, Intelligence Advisor
Sharon White, Engineer


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