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United States Department of Agriculture

Agricultural Research Service

Image Number D2757-1

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Image Number D2757-1

In West Lafayette, Indiana, researcher Shalamar Armstrong applies chemical lime/alum sulfate during testing of sediment and water samples from drainage ditches in northeast Indiana.

 

Photo by Kossi Nouwakpo.


640 pixels wide: (d2757-1.jpg)




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Last Modified: 2/28/2013
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