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Scientific Investigations Report 2012–5091


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Reconnaissance of Land-Use Sources of Pesticides in Drinking Water, McKenzie River Basin, Oregon


Table 9. Number of analyte/pesticide detections for different land use sites by season. 


[Numbers in parentheses are based on a common reporting level of 0.1 µg/L; –, no data]


Season Urban Forestry Agriculture Mixed
Winter storm 18 (3) 2 (0) – 3 (1)
Spring storm 105 (47) 31 (2) 19 (3) 47 (1)
Fall storm 106 (29) 18 (1) – 45 (8)
Non-storm 4 (0) – – 13 (0)

First posted May 30, 2012

For additional information contact:
Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Avenue
Portland, Oregon 97201
http://or.water.usgs.gov

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