Water: Wadeable Streams Assessment
Our WatersRivers & StreamsMonitoring & AssessmentWadeable Streams AssessmentRetrieving Wadeable Streams Assessment DataRetrieving Wadeable Streams Assessment Data
The Wadeable Streams Assessment (WSA) is a first-ever statistically-valid survey of the biological condition of small streams throughout the U.S. The U.S. Environmental Protection Agency (EPA) worked with the states to conduct the assessment in 2004-2005.
Data for each parameter sampled in the Wadeable Streams Assessment (WSA) are available for downloading in a series of files as comma separated values (*.csv). Each *.csv data file has a companion text file (*.txt) that lists a dataset label and individual descriptions for each variable. Users should view the *.txt files first to help guide their understanding and use of the data.
Wadeable Streams Assessment (WSA) (ZIP) (6.9MB)
Individual files from WSA available for download:
| Name of Variable | Download File (.csv file) |
Description of Variable (.txt file) |
|---|---|---|
| Bank geometry and substrate measurements | bankgeometry.csv (9.3MB) | bankgeometry.txt (4.3K) |
| Benthic macroinvertebrate 300 counts | wsa_bencnt_genus_ts_final_part1.csv (7.8MB) wsa_bencnt_genus_ts_final_part2.csv (1.7MB) |
wsa_bencnt_genus_ts_final.txt (2.6K) |
| Benthic macroinvertebrate 300 metrics | wsa_benmet300_ts_final.csv (1.9MB) | wsa_benmet300_ts_final.txt (17.4K) |
| Canopy cover measured by densiometer | canopycover_part1.csv (3.4MB) canopycover_part2.csv (1.5MB) |
canopycover.txt (2K) |
| Channel constraint data | channelconstraint.csv (119.7K) | channelconstraint.txt (2.3K) |
| Field chemistry (cond., DO, temp.) | fieldchemistry.csv (359.7K) | fieldchemistry.txt (5.7K) |
| In-channel fish cover ratings | fishcover.csv (1.5MB) | fishcover.txt (3.9K) |
| Large woody debris counts | largewoody.csv (1.3MB) | largewoody.txt (4.5K) |
| Legacy tree data | legacytree.csv (1.2MB) | legacytree.txt (2.4K) |
| Legacy tree metrics | legacytreemet.csv (256.8K) | legacytreemet.txt (3K) |
| Mesotransect substrate data | mesosubstrate.csv (1MB) | mesosubstrate.txt (2.5K) |
| Short list of best physical habitat metrics (subset of phabmet) | phabbest.csv (975.5K) | phabbest.txt (9.6K) |
|
Physical habitat metrics |
phabmet_part1.csv (2MB) phabmet_part2.csv (2.7MB) |
phabmet.txt (58.3K) |
| Rapid habitat assessment | rapidhabass.csv (95.3K) | rapidhabass.txt (3.8K) |
| Rapid habitat assessment metrics | rapidhabmetrics.csv (123.5K) | rapidhabmetrics.txt (4K) |
| Visual riparian estimates | riparian.csv (6.3MB) | riparian.txt (6K) |
| Post-Sampling Site Info and Survey Design | wsa_siteinfo_ts_final.csv (985.7K) | wsa_siteinfo_ts_final.txt (10.8K) |
| Stream velocity | streamvelocity.csv (126K) | streamvelocity.txt (2.5K) |
| Thalweg data | thalweg_part1.csv (9.6MB) thalweg_part2.csv (9.6MB) thalweg_part3.csv (4.7MB) |
thalweg.txt (6.2K) |
| Stream verification | verification.csv (370K) | verification.txt (5.8K) |
| Water chemistry | waterchemistry.csv (567.6K) | waterchemistry.txt (8.2K) |
| Watershed metrics | watershedstressor.csv (89.5K) | watershedstressor.txt (2.7K) |