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USGS Data Series 423
National Water-Quality Assessment Program
Data files are available to download in Microsoft® Excel1. Tables 1 through 9 are version 2003 files; table 10 is a version 2007 file. Each workbook contains one or more data sheets and a sheet with variable name definitions and notes.
Table 1. Stream/watershed information
Table 3. Instream characteristics
Table 4. Algal data table summary
Table 5. Macroinvertebrate data table summary
Table 6. Fish data table summary
1 The use of firm, trade, and brand names is for identification purposes only and does not constitute endorsement by the U.S. government.