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United States Department of Agriculture

Agricultural Research Service

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Image Number K9835-17

At the Beltsville Agricultural Research Center, quality assurance specialist David Johnson examines a sample of biodiesel while Greg Meyer, driver from a cooperating fuel company, fills a 20,000-gallon tank at a boiler plant, which heats BARC's dairy buildings.

Photo by Keith Weller.

640 pixels wide: (k9835-17.jpg)

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Last Modified: 6/27/2017
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