Scientific Investigations Report 2006–5101–D
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5101–D
Table 4. Number of pesticide detections at each site by pesticide type for spring and summer 2004, Willamette River basin and surrounding area, Oregon and Washington.
[Sites are sorted by urban intensity index (UII). Shading from light to dark represents low, medium, high, and very high UII scores. Abbreviations: OR, Oregon; WA, Washington. Symbols: ≥, greater than or equal to; >, greater than; <, less than; ≤, less than or equal to]
| Site name | UII | Spring sampling | Summer sampling | Total detections | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Herbicide | Insecticide | Fungicide | Total | Herbicide | Insecticide | Fungicide | Total | ||||
| Beaverton Creek near SW 216th Avenue, near Orenco, OR | 100 | 7 | 2 | 1 | 10 | 3 | 0 | 1 | 4 | 14 | |
| Claggett Creek at Keizer, OR | 100 | 7 | 1 | 0 | 8 | 4 | 2 | 0 | 6 | 14 | |
| Fanno Creek at Durham, OR | 96 | 8 | 2 | 0 | 10 | 1 | 2 | 1 | 4 | 14 | |
| Pringle Creek at Salem, OR | 88 | 7 | 1 | 0 | 8 | 3 | 0 | 0 | 3 | 11 | |
| Kellogg Creek at Milwaukie, OR | 88 | 7 | 0 | 0 | 7 | 6 | 1 | 0 | 7 | 14 | |
| Amazon Creek near Danebo Road, at Eugene, OR | 77 | 2 | 2 | 0 | 4 | 0 | 3 | 0 | 3 | 7 | |
| Tryon Creek below Nettle Creek, near Lake Oswego, OR | 72 | 2 | 3 | 0 | 5 | 5 | 3 | 0 | 8 | 13 | |
| Curtin Creek near Vancouver, WA | 69 | 5 | 0 | 1 | 6 | 2 | 0 | 0 | 2 | 8 | |
| Johnson Creek at Circle Avenue, OR | 59 | 8 | 1 | 1 | 10 | 4 | 1 | 1 | 6 | 16 | |
| Battle Creek near Turner, OR | 58 | 8 | 2 | 0 | 10 | 6 | 0 | 0 | 6 | 16 | |
| Rock Creek at Quatama Road, near Hillsboro, OR | 51 | 8 | 2 | 0 | 10 | 3 | 0 | 0 | 3 | 13 | |
| Whipple Creek near Salmon Creek, WA | 49 | 2 | 1 | 0 | 3 | 0 | 0 | 0 | 0 | 3 | |
| Chicken Creek near Sherwood, OR | 45 | 6 | 2 | 0 | 8 | 1 | 0 | 0 | 1 | 9 | |
| North Fork Deep Creek at Barton, OR | 39 | 8 | 2 | 2 | 12 | 7 | 1 | 2 | 10 | 22 | |
| Oak Creek at Corvallis, OR | 39 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | |
| Tickle Creek near Boring, OR | 32 | 6 | 1 | 1 | 8 | 7 | 2 | 1 | 10 | 18 | |
| Chehalem Creek at Newberg, OR | 29 | 7 | 2 | 0 | 9 | 2 | 1 | 0 | 3 | 12 | |
| Silk Creek near Cottage Grove, OR | 24 | 1 | 0 | 0 | 1 | 2 | 0 | 0 | 2 | 3 | |
| Rock Creek near Battleground, WA | 23 | 1 | 3 | 1 | 5 | 0 | 0 | 1 | 1 | 6 | |
| Salmon Creek near Battleground, WA | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Deep Creek near Sandy, OR | 17 | 4 | 0 | 1 | 5 | 2 | 0 | 0 | 2 | 7 | |
| Nate Creek near Colton, OR | 15 | 4 | 0 | 0 | 4 | 1 | 0 | 0 | 1 | 5 | |
| Milk Creek at Camp Adams, OR | 12 | 2 | 0 | 0 | 2 | 1 | 0 | 0 | 1 | 3 | |
| South Scappose Creek at Scappose, OR | 8 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | |
| North Yamhill Creek near Yamhill, OR | 8 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | |
| Lost Creek near Dexter, OR | 6 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | |
| Iler Creek near Forest Grove, OR | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| East Fork Dairy Creek near Meacham Corner, OR | 0 | 3 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 3 | |
| Total | 116 | 27 | 8 | 151 | 61 | 16 | 7 | 84 | 235 | ||
| Urban intensity index |
Averages | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| UII ≥ 70 | 89 | 5.7 | 1.6 | 0.1 | 7.4 | 3.1 | 1.6 | 0.3 | 5.0 | 12 | |
| UII >25 – <70 | 47 | 5.9 | 1.3 | .5 | 7.7 | 3.2 | .5 | .4 | 4.1 | 12 | |
| UII >10 – ≤ 25 | 19 | 2.0 | .5 | .3 | 2.8 | 1.0 | 0 | .2 | 1.2 | 4 | |
| UII ≤ 10 | 5 | 1.0 | 0 | 0 | 1.0 | .2 | 0 | 0 | .2 | 1 |
U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/sir/2006/5101-D
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Page Last Modified: Thursday, 01-Dec-2016 19:24:29 EST
