National Rivers and Streams Assessment (NRSA) 2023-24 data, National Aquatic Resource Surveys
U.S. Environmental Protection Agency, Office of Water
- License
- Public domain
- Commercial
- Yes
- Format
- CSV
- Coverage
- Conterminous United States (sampled river and stream sites)
- Last updated
- Added to findgis 31 Oct 2026 · Update frequency Irregular
Randomly selected sites are sampled for chemistry, habitat and aquatic life, and earlier cycles back to 2004 are included.
Source and attribution
- Publisher
- U.S. Environmental Protection Agency, Office of Water
- License
- Public domain
- Commercial use
- Yes
- Attribution required
- No
- Modification allowed
- See publisher
- Redistribution allowed
- See publisher
- Share-alike
- No
- Region
- United StatesUS
- Type
- Vector
- Time
- 2004–2024
- Extent
- -179.217.6-64.571.4West, south, east, north. Approximate region extent.
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