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Maps

At the Dakota Water Science Center, we visualize our scientific information spatially through maps and geographic information systems (GIS) resources.

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Occurrence of volatile organic compounds in selected urban streams in the United States, 1995-2003

The U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program sampled 37 urban streams throughout the United States for volatile organic compounds (VOCs) from 1995 to 2003. These urban streams were selected to (1) characterize stream water quality from areas draining predominantly residential and commercial land uses and (2) determine which natural and human factors affect stream