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National Aquatic Resource Surveys

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National Rivers and Streams Assessment 2013-2014 Results

The NRSA 2013-14 reports on the quality of rivers and streams in the conterminous United States.

Key Findings

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View key findings from the National Rivers and Streams Assessment 2013-14.

Ecoregional Results

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Coming soon! View NRSA 2013-14 results for each of the nine ecoregions.

Reports and Data

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View the public report, technical support document, and data files.

NRSA Data Dashboard

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Coming soon! View results and download customized charts with the NRSA dashboard.

Contact Us to ask a question, provide feedback, or report a problem.

National Aquatic Resource Surveys