National Rivers and Streams Assessment 2013-2014 Results
The NRSA 2013-14 reported on the quality of rivers and streams in the conterminous United States based on data collected in 2013-14. The most recent assessment is the NRSA 2018-19 report.
Key Findings
Key findings from the National Rivers and Streams Assessment 2013-14.
Reports and Data
View the public report, technical support document, and data files.