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Senior Airman Adam Walden, 386th Expeditionary Civil Engineer Squadron, holds a Philadelphia Rod while Tech. Sgt. Mark Ondersma, 386th ECES, looks through an auto leveler here, July 29, 2013. Walden and Ondersma are both heavy equipment operators. They are taking measurements to ensure the base material is level all around the site before placement of a new building. Ondersma, a native of Hudsonville, Mich. is deployed out of the 110th Airlift Wing, Battle Creek, Mich., Air National Guard unit. Walden is also a member of the 110th A.W. and is a native of Clinton Mich. (U.S. Air Force photo by Master Sgt. Christopher A. Campbell)
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