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Retrieving 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) (4.3MB)

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	bankgeometry.txt
Benthic macroinvertebrate counts	benthiccounts.csv	benthiccounts.txt
Benthic macroinvertebrate metrics	bentichmetrics.csv	bentichmetrics.txt
Canopy cover measured by densiometer	canopycover.csv	canopycover.txt
Channel constraint data	channelconstraint.csv	channelconstraint.txt
Field chemistry (cond., DO, temp.)	fieldchemistry.csv	fieldchemistry.txt
In-channel fish cover ratings	fishcover.csv	fishcover.txt
Large woody debris counts	largewoody.csv	largewoody.txt
Legacy tree data	legacytree.csv	legacytree.txt
Legacy tree metrics	legacytreemetrics.csv	legacytreemetrics.txt
Mesotransect substrate data	mesosubstrate.csv	mesosubstrate.txt
Periphyton chlorophyll data	periphyton.csv	periphyton.txt
Short list of best physical habitat metrics (subset of phabmet)	phabbest.csv	phabbest.txt
Physical habitat metrics	phabmetrics_part1.csv phabmetrics_part2.csv	phabmetrics.txt
Rapid habitat assessment	rapidhabassess.csv	rapidhabassess.txt
Rapid habitat assessment metrics	rapidhabmetrics.csv	rapidhabmetrics.txt
Visual riparian estimates	riparian.csv	riparian.txt
Site/study information	siteinfo.csv	siteinfo.txt
Stream velocity	streamvelocity.csv	streamvelocity.txt
Thalweg data	thalweg.csv	thalweg.txt
Stream verification	verification.csv	verification.txt
Water chemistry	waterchemistry.csv	waterchemistry.txt
Watershed metrics	watershedstressor.csv	watershedstressor.txt




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