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  • Filtering by Sample Type
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  • Data can be retrieved by specific US Geological Survey (USGS), National Water Quality Assessment (NAWQA) and US Environmental Protection Agency (US EPA), National Rivers and Streams Assessment (NRSA) protocols.
  • NAWQA algae, invertebrate and fish samples are collected at a reach scale and specific sampling protocols can be found in a USGS Open-file report at http://pubs.usgs.gov/of/2002/ofr-02-150/.
  • NAWQA revised methods for characterizing stream habitat can be found in a USGS Water Resources Investigations Report at http://pubs.usgs.gov/wri/wri984052/.
  • EPA National Rivers and Streams Assessment (NSRA) protocols are contained in several documents that can be found at http://water.epa.gov/type/rsl/monitoring/riverssurvey/.
Hints and Tricks:
  • The list of sample types can be limited using the radio buttons at the top of the section.

 

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