Skip Links

USGS - science for a changing world

Scientific Investigations 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


Table 10. Pharmaceuticals detected in filtered wastewater-treatment-plant effluent, Columbia River Basin, Washington and Oregon, 2008–09.


[Station names are shown in table 2. Concentrations reported in micrograms per liter. See table A3 for a listing of pharmaceuticals analyzed in filtered-effluent samples and their reporting limits.
Present, presence is verified, but concentration is not quantified. Abbreviations: E, estimated; –, not detected]


Analyte Wenatchee Richland Umatilla The Dalles Hood River Portland Vancouver St. Helens Longview
(2008) (2009) (a.m.) (noon) (p.m.)
Acetaminophen E 2.6
Caffeine 0.22 E 1.3 0.65 2.2 E 12 E 30
Carbamazepine 0.1 0.098 0.052 0.12 0.047 0.077 E 0.030 E 0.023 E 0.028 E 0.037 Present E 0.052
Codeine 0.042 0.17 0.19 0.13 Present
Cotinine 0.098 0.071 0.15
Dehydronifedipine Present Present
Diltiazem E 0.089 Present E 0.047 E 0.042 E 0.056 Present Present E 0.043
1,7-Dimethylxanthine E 0.40 E 5.1
Diphenhydramine 0.090 0.059 E 0.025 Present 0.11 0.082 0.075 0.064 0.056 0.10 E 0.033 E 0.031
Sulfamethoxazole Present Present E 0.12 Present Present
Thiabendazole 0.22 0.57
Trimethoprim 0.15 0.19 0.10 0.11 0.12 0.089 0.079 0.076 0.073 E 0.020 0.072

First posted April 25, 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

Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.

Accessibility FOIA Privacy Policies and Notices

USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/sir/2012/5068/table10.html
Page Contact Information: Contact USGS
Page Last Modified: Thursday, January 10, 2013, 07:51:16 PM