Scientific Investigations Report 2008–5027
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008–5027
Table 2. Pesticide data-collection activities in the lower Clackamas River basin, Oregon, 2000–2005.
[For a complete list of compounds analyzed in each schedule, refer to appendix table B1. Number of samples: Excludes quality-control samples. Abbreviations: CWMG, Clackamas Watershed Management Group; SWQA, Source Water-Quality Assessment (NAWQA study); EUSE, Effects of Urbanization on Stream Ecosystems (NAWQA study); NAWQA, National Water-Quality Assessment Program; USGS, U.S. Geological Survey]
| Study | Years | Analytical schedules | Site types sampled | Storm events | Number of samples | ||
|---|---|---|---|---|---|---|---|
| Tributaries | Clackamas River/source water | Finished drinking water | |||||
| Pesticide Study–Phase 1 (USGS/CWMG) | 2000–2001 | 2010, 9060 | X | X | X | X | 21 |
| SWQA–Phase 1 (NAWQA) | 2002–2003 | 2003, 2060, 1433, 2020 | X | 18 | |||
| EUSE (NAWQA) | 2003–2004 | 2003, 2060 | X | 18 | |||
| SWQA–Phase 2 (NAWQA) | 2004–2005 | 2003, 2060, 1433, 2020 | X | X | 28 | ||
| Pesticide Study–Phase 2 (USGS/CWMG) | 2005 | 2001, 2060, 40241 | X | X | X | X | 34 |
1 Source and finished drinking-water samples (only) also were analyzed using schedules 2002 and 2003.
U.S. Department of the Interior | U.S. Geological Survey
URL: http://pubs.usgs.gov/sir/2008/5027
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