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Department of Homeland Security
The Department of Homeland Security (DHS) 
formed from the merger of many federal agencies, including U.S. Customs and Border Patrol, Citizenship and Immigration Services, and U.S. Coast Guard. (Individual agencies under DHS may be listed separately on this website.) Their mission is to protect the American people and their homeland. For additional information on Region 9's review of DHS projects, contact Carol Sachs at (415) 972-3860 or sachs.carol@epa.gov
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- Construction, Operation, and Maintenance of the Proposed Tactical Infrastructure, U.S. Border Patrol, Tucson Sector, DEA (PDF), 2/25/08 (7 pp, 36 K)
- Construction, Operation, and Maintenance of the Proposed Tactical Infrastructure, U.S. Border Patrol, Yuma Sector, DEA (PDF), 2/25/08 (7 pp, 36 K)
- Road and Fence Construction Project (Border Fence) Limestone Ridge, Tuscon Sector, DEA (PDF), 1/7/08 (2 pp, 24 K)
- Proposed Tactical Infrastructure, US Border Patrol, El Centro Sector, DEA (PDF), 1/22/08 (6 pp, 39 K)
- Proposed Construction, Operation, and Maintenance of the Proposed Tactical Infrastructure, U.S. Border Patrol San Diego Sector, DEIS (PDF), 2/25/08 (13 pp, 70 K)