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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 9. Anthropogenic organic compounds detected in unfiltered 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 A2 for a listing of anthropogenic organic 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: ND, not determined because of matrix interferences; E, estimated; –, not detected]


Analyte Wenatchee Richland Umatilla The Dalles Hood River Portland Vancouver St. Helens Longview
(2008) (2009) (a.m.) (noon) (p.m.)
Detergent metabolites
4-Cumylphenol Present
para-Nonylphenol (total) Present Present Present Present Present Present E 2.7 Present
4-Nonylphenol monoethoxylate
 (sum of all isomers) [NP1EO] < 2.0 Present < 2.0 Present Present E 5.8 E 6.3 E 4.4 Present Present
4-Nonylphenol diethoxylate 
 (sum of all isomers) [NP2EO] E 2.2 E 1.5 E 2.6 E 3.8 E 2.1 E 14 E 13 E 9.3 Present E 1.3 E 1.7
4-tert-Octylphenol Present E 0.21 E 0.16
4-tert-Octylphenol diethoxylate (OP2EO) < 0.78 E 0.37 E 1.0 E 0.32 E 1.3 E 1.2 E 0.90 E 0.38 E 0.31 E 0.85
4-tert-Octylphenol monoethoxylate (OP1EO) Present E 0.80 E 0.90 E 0.84 E 0.81 E 0.55
Flame retardants
Tri(2-butoxyethyl)phosphate E 0.74 E 0.42 E 3.4 E 0.54 E 2.4 E 1.9 E 2.3 E 1.1 E 2.2 E 1.9
Tri(2-chloroethyl)phosphate 0.65 0.44 E 0.15 0.46 0.26 0.45 0.41 0.41 0.3 E 0.16 Present 0.3
Tri(dichloroisopropyl)phosphate 0.64 0.69 E 0.18 0.39 0.43 0.52 0.39 0.45 0.32 E 0.28 E 0.12 0.33
Tributyl phosphate Present 0.2 Present Present Present E 0.60 E 0.38 Present Present 0.33 0.42
Miscellaneous—antioxidants, solvents, or multiple uses
Anthraquinone Present 0.22 E 0.15
Bromoform Present Present
3-tert-Butyl-4-hydroxyanisole (BHA) Present
Caffeine E 0.073 Present Present E 0.076 0.28 1.6 0.92 1.2 Present 7 20
Cotinine Present Present Present Present E 0.34
para-Cresol Present 0.25 Present E 0.12
Isophorone Present Present
Isopropylbenzene (cumene) E 0.032
d-Limonene E 0.078
5-Methyl-1H-benzotriazole E 0.59 Present E 0.36 E 0.52 E 0.80 E 0.74 E 0.62 E 0.62 E 0.57 E 0.89
Pentachlorophenol E 0.89 Present E 0.79 E 0.77 Present Present
Tetrachloroethylene Present Present Present Present Present Present Present
Personal care products
Acetophenone E 0.14 E 0.34
Benzophenone 0.27 0.24 Present Present 0.26 0.2 0.28 0.26 0.22 E 0.10 E 0.19 0.30
Camphor Present 1.3
1,4-Dichlorobenzene E 0.26 0.33 Present E 0.04 E 0.40 E 0.24 E 0.40 E 0.42 E 0.41 E 0.10 Present 0.88
Galaxolide 1.5 2.5 E 1.5 1.3 1.2 1.1 1.0 1.2 0.97 E 1.2 0.38 1.2
Personal care products—Continued
Indole Present Present Present E 0.11
Menthol <0.50 <0.25 <0.33 <0.24 <0.29 <0.51 0.32 3.2
3-Methyl-1H-indole (skatol) Present Present Present Present Present Present Present Present Present
Phenol Present Present Present
Tonalide Present E 0.15 E 0.18 E 0.11 E 0.12 Present E 0.14 E 0.11 Present Present E 0.11
Triclosan 0.56 0.44 E 0.13 0.24 0.25 0.22 0.29 0.21 E 0.29 0.76 0.64
Triethyl citrate (ethyl citrate) 0.51 0.52 E 0.13 0.44 0.23 0.58 0.59 0.43 E 0.26 E 0.13 0.51
Pesticides
Atrazine Present
3,4-Dichlorophenyl isocyanate E 0.17 Present Present Present E 0.077 E 0.090 E 0.14 Present E 0.12
Metalaxyl E 0.14
N,N-diethyl-meta-toluamide (Deet) E 0.15 Present Present 0.32 0.31 0.24 E 0.15 0.3
Plasticizers
Bisphenol A Present Present ND ND Present Present 0.58
Diethyl phthalate (DEP) Present 0.23 Present E 0.19
bis-(2-Ethylhexyl) phthalate (DEHP) Present E 1.2 E 1.7 E 1.3 Present Present
Triphenyl phosphate Present E 0.10 Present Present Present Present Present Present Present Present Present
Polycyclic aromatic hydrocarbons (PAHs)
Anthracene Present
2,6-Dimethylnaphthalene Present
Fluoranthene E 0.11
1-Methylnaphthalene E 0.044
2-Methylnaphthalene E 0.047
Naphthalene E 0.073
Phenanthrene Present
Pyrene Present Present Present Present Present
Steroids
Cholesterol E 6.3 Present E 4.5 Present E 3.1 Present E 4.1 E 3.8 E 3.4 Present E 3.6 E 3.4
3-beta-Coprostanol E 5.8 Present Present Present Present Present E 4.5 E 4.3 E 3.6 Present Present Present
beta-Sitosterol E 3.2 E 1.6 E 2.2 E 1.1 E 0.79 E 0.87 E 1.5 E 1.2 E 1.2 E 0.86 E 2.2 E 1.1
beta-Stigmastanol E 1.1 E 0.55 E 0.29 E 0.97 Present

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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