Scientific Investigations Report 2008–5027
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008–5027
Table 7. Pesticide Toxicity Index values for benthic invertebrates and fish for stormwater samples collected in the lower Clackamas River basin, May and September 2005.
| Sample | Date | Pesticide Toxicity Index | |
|---|---|---|---|
| Benthic invertebrates |
Fish | ||
| Carli Creek near mouth | 05-09-05 | 4.06E-04 | 1.31E-05 |
| 09-30-05 | 1.42E-02 | 5.75E-04 | |
| Cow Creek at mouth | 05-09-05 | 1.26E-03 | 1.17E-04 |
| 09-30-05 | 1.65E-03 | 1.04E-03 | |
| Clackamas River (source water) | 05-09-05 | 6.20E-05 | 1.15E-05 |
| 09-30-05 | 6.30E-04 | 2.16E-04 | |
| Deep Creek at Barton | 09-30-05 | 1.16E-05 | 9.36E-04 |
| Doane Creek downstream of Highway 212 | 09-30-05 | 1.96E-01 | 1.01E-02 |
| Dolan Creek at Orient Road | 09-30-05 | 8.54E-07 | 1.51E-04 |
| North Fork Deep Creek tributary at Church Road | 09-30-05 | 7.68E-03 | 1.37E-04 |
| North Fork Deep Creek tributary at 312th Avenue | 09-30-05 | 1.04E-02 | 5.15E-03 |
| North Fork Deep Creek at Boring | 05-09-05 | 5.79E-02 | 3.09E-03 |
| North Fork Deep Creek at Barton | 09-30-05 | 3.24E-02 | 6.05E-04 |
| North Fork Deep Creek near Boring | 09-30-05 | 2.97E-01 | 5.51E-03 |
| Noyer Creek at mouth | 05-09-05 | 5.27E-02 | 6.90E-03 |
| 09-30-05 | 8.06E-05 | 3.16E-04 | |
| Noyer Creek downstream of Highway 212 | 05-09-05 | 7.50E-02 | 2.73E-03 |
| 09-30-05 | 2.48E-01 | 6.53E-03 | |
| Richardson Creek at Highway 224 | 09-30-05 | 1.33E-04 | 5.48E-04 |
| Rock Creek at 172nd Avenue | 05-09-05 | 1.25E-03 | 1.87E-04 |
| Rock Creek at Stoneybrook Court | 09-30-05 | 1.62E-06 | 2.03E-06 |
| 09-30-05 | 1.14E-02 | 1.06E-03 | |
| Rock Creek downstream of Foster Road | 09-30-05 | 1.57E-04 | 6.79E-04 |
| Rock Creek near mouth | 09-30-05 | 5.01E-03 | 1.10E-03 |
| Sieben Creek at Highway 224 | 05-09-05 | 6.66E-03 | 1.68E-04 |
| 09-30-05 | 4.99E-03 | 8.26E-04 | |
| Sieben Creek downstream of Sunnyside Road | 09-30-05 | 1.87E-03 | 7.48E-04 |
| Tickle Creek at 362nd Avenue | 09-30-05 | 1.39E-04 | 2.61E-05 |
| Tickle Creek near Boring | 09-30-05 | 3.89E-02 | 3.22E-01 |
| Tickle Creek tributary at Colorado Road | 09-30-05 | 6.02E-04 | 1.17E-04 |
| Tickle Creek tributary at Orient Road | 09-30-05 | 2.40E-05 | 8.56E-06 |
| Trillium Creek at Anderegg Parkway | 05-09-05 | 9.91E-03 | 3.64E-04 |
| 09-30-05 | 2.79E-05 | 2.94E-05 | |
U.S. Department of the Interior | U.S. Geological Survey
URL: http://pubs.usgs.gov/sir/2008/5027
Page Contact Information: Publications Team
Page Last Modified: Thursday, 10-Jan-2013 18:43:21 EST
