U.S. Air Force Senior Airman Joseph Lagrow, 354th Civil Engineer Squadron waste water treatment plant operator, scoops the top layer of sludge out of a distribution box June 1, 2012, Eielson Air Force Base, Alaska. The boxes are cleared daily to ensure they evenly distribute the flow into clarifiers.
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EIELSON AIR FORCE BASE, AK, US
This work, Dirty Jobs: not all drains lead to the ocean [Image 1 of 6], by SrA Janine Thibault, identified by DVIDS, is free of known copyright restrictions under U.S. copyright law.