USGS Scientific Invesigations Report 2012–5068  - Reconnaissance of Contaminants in Selected Wastewater-Treatment-Plant Effluent and Stormwater Runoff Entering the Columbia River, Columbia River Basin, Washington and Oregon, 2008–10 

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Scientific Investigations Report 2012–5068 

Prepared in cooperation with the Columbia River Inter-Tribal Fish Commission and the Lower Columbia Estuary Partnership 

Reconnaissance of Contaminants in Selected Wastewater-Treatment-Plant Effluent and Stormwater Runoff Entering the Columbia River, Columbia River Basin, Washington and Oregon, 2008–10 

By Jennifer L. Morace 

Figures

Figure 1. Cities where samples were collected from wastewater-treatment plants and stormwater runoff in the Columbia River Basin, Washington and Oregon, 2008–10. 

Figure 2. Selected stormwater-runoff sampling locations in the Portland, Oregon, and Vancouver, Washington, area, Columbia River Basin, 2009–10.

Figure 3. Percentage of compounds detected in wastewater-treatment-plant effluent, Columbia River Basin, Washington and Oregon, 2008–09. 

Figure 4. Ratio of filtered to unfiltered concentrations of trace elements measured in stormwater runoff, Columbia River Basin, Washington and Oregon, 2009–10. 

Figure 5. Percentage of compounds detected in stormwater runoff, Columbia River Basin, Washington and Oregon, 2009–10.  

Figure 6. Concentrations of diphenhydramine, trimethoprim, galaxolide, and nonylphenol compounds in wastewater-treatment-plant-effluent samples, Columbia River Basin, Oregon, 2008–09.

First posted April 25, 2012

Report PDF (5 MB)

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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