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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 13. Halogenated compounds detected in solids filtered from wastewater-treatment-plant effluent, Columbia River Basin, Washington and Oregon, 2008–09.


[Station names are shown in table 2. Concentrations reported in nanograms per liter. See table A1 for a listing of halogenated compounds analyzed and their reporting limits. Present, presence is verified, but concentration is not quantified; sometimes the reporting limit for an individual sample is raised because of matrix interference, these instances of non-detection are shown as less than (<) the raised reporting limit. Abbreviations: L, liter; –, not detected; ND, not determined because of poor compound recoveries]


Analyte Wenatchee Richland Umatilla The Dalles Hood River Portland Vancouver St. Helens Longview
(a.m.) (noon) (p.m.)
Volume filtered (L) 21 19 18 18 19 20 10 9 18 12 20
Polybrominated diphenyl ethers (PBDEs) or brominated flame retardants
Dechlorane plus Present Present Present
Firemaster 680 0.02 0.07 0.02 0.04 0.13 0.05 0.03 0.08 0.06 0.05
PBDE-47 Present Present Present Present Present Present Present Present Present Present Present
PBDE-66 0.07 0.22 0.14 0.15 0.09 0.10 0.02 0.11 0.45 0.04 0.05
PBDE-85 0.07 0.28 0.09 0.09 0.08 0.17 0.09 0.21 0.21 0.08 0.12
PBDE-99 Present Present Present Present Present Present Present 4.8 Present Present Present
PBDE-100 Present 1.6 Present Present Present Present Present Present Present Present Present
PBDE-138 0.02 0.06 0.04 0.03 0.03 0.05 0.02 0.08 0.06 0.03
PBDE-153 0.12 0.40 0.25 0.14 0.15 0.06 0.11 0.36 0.27 0.16 0.16
PBDE-154 0.12 0.38 0.27 0.15 0.15 0.25 0.08 0.31 0.28 0.15 0.16
PBDE-183 0.05 0.03 0.03 0.04 0.04 0.02 0.04 0.04
Polychlorinated biphenyls (PCBs)
PCB-101 Present
PCB-146 0.01
PCB-170 0.01
PCB-174 0.01
PCB-177 0.01
PCB-180 0.02 0.02 0.01
PCB-183 Present
PCB-187 0.01
PCB-194 Present
Herbicides and insecticides
cis-Chlordane 0.03 0.19 0.02 0.08 0.05 0.10 0.05 0.05 0.07 0.09
trans-Chlordane 0.02 0.19 0.01 0.05 0.03 0.08 0.02 0.06 0.03 0.01 0.05
Chlorpyrifos 0.18 0.18 0.43 0.04 0.03
Cyfluthrin 0.26 0.18 0.26 0.07 0.41
lambda-Cyhalothrin 0.02 Present Present Present
Desulfinylfipronil Present Present 0.02 0.02 Present Present 0.07
Dieldrin 0.01 0.17 0.05 0.14 0.09 0.08 < 0.04
alpha-Endosulfan 0.01
Fipronil ND 0.22 0.06 0.17 0.20 0.99 0.35 0.77 1.4 ND 0.05
Fipronil Sulfide 0.03 0.02 Present 0.02 0.06 0.02 0.06 0.08 0.04 0.01
cis-Nonachlor Present 0.01
trans-Nonachlor 0.01 0.10 Present 0.03 0.04 0.04 0.01 0.03
Pentachloroanisole Present Present Present 0.85 Present
Trifluralin Present 0.02 0.02
Other compounds
Hexachlorobenzene (HCB) Present
Methoxy triclosan 1.2 3.7 4.6 1.7 13 Present 1.1
Triclosan Present Present Present Present 55 Present 57 86 ND

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

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