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

Table 21. Polycyclic aromatic hydrocarbons (PAHs) detected in unfiltered stormwater runoff, Columbia River Basin, Washington and Oregon, 2009–10. 

[Station names are shown in table 3. Concentrations are in micrograms per liter. See table A5 for a listing of compounds analyzed 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	Portland1	Vancouver1	Vancouver2	Portland2	Willamette1	Willamette2		Willamette3	Willamette4	St. Helens	Longview
Analyte	Wenatchee	Richland	Umatilla	The Dalles	Hood River	Portland1	Vancouver1	Vancouver2	Portland2	Willamette1	–Dec	–May	Willamette3	Willamette4	St. Helens	Longview
Acenaphthene	–	–	–	–	–	–	–	Present	Present	–	Present	Present	Present	Present	–	Present
Acenaphthylene	–	–	–	–	–	–	–	–	–	–	–	–	Present	–	–	–
Anthracene	–	–	Present	–	–	–	–	Present	Present	–	Present	Present	Present	Present	–	Present
Benzo[a]anthracene	–	–	Present	Present	–	–	–	–	Present	–	E 0.25	Present	E 0.13	–	–	Present
Benzo[a]pyrene	–	–	Present	Present	–	–	Present	E 0.17	Present	–	E 0.25	Present	E 0.19	Present	–	E 0.17
Benzo[b]fluoranthene	–	Present	E 0.23	Present	–	–	Present	E 0.26	E 0.24	–	0.39	Present	E 0.19	Present	–	E 0.23
Benzo[ghi]perylene	–	–	Present	Present	–	–	Present	E 0.20	Present	Present	E 0.23	Present	Present	Present	–	Present
Benzo[k]fluoranthene	–	–	Present	Present	–	–	–	–	Present	–	E 0.18	Present	Present	–	–	Present
2-Chlorophenol	–	–	–	–	–	–	–	–	–	–	Present	Present	–	–	–	–
Chrysene	–	Present	E 0.17	Present	–	–	Present	E 0.24	E 0.24	–	0.36	Present	Present	Present	–	Present
Dibenz[a,h]anthracene	–	–	Present	–	–	–	–	–	Present	–	–	–	–	–	–	–
1,2-Dichlorobenzene	–	–	–	–	–	–	–	–	–	–	–	Present	–	–	–	–
1,4-Dichlorobenzene	–	–	–	Present	–	–	–	–	–	–	–	Present	–	–	–	–
2,4-Dichlorophenol	–	Present	Present	–	–	–	–	–	–	–	0.80	2.3	–	–	–	–
Diethyl phthalate	Present	–	–	–	–	Present	–	–	–	Present	1.5	Present	–	–	–	–
Dimethyl phthalate	E 0.71	–	–	–	–	–	–	Present	Present	Present	E 0.61	Present	Present	Present	–	–
2,4-Dimethylphenol	–	Present	Present	–	–	0.44	Present	–	Present	0.44	2.0	0.38	E 0.23	Present	–	–
Di-n-butyl phthalate	Present	–	–	–	–	E 0.20	–	–	–	–	E 1.0	Present	–	–	–	–
Di-n-octyl phthalate	–	–	Present	–	–	E 0.84	E 1.8	–	Present	–	–	–	–	–	–	–
bis(2-Ethylhexyl) phthalate	Present	–	–	–	–	E 3.0	E 2.3	2.1	Present	< 2.2	E 2.9	–	–	–	–	–
Fluoranthene	Present	Present	E 0.22	E 0.19	–	Present	E 0.21	0.35	E 0.41	Present	0.78	Present	E 0.25	Present	–	0.21
Fluorene	–	–	Present	–	–	–	Present	Present	Present	–	–	–	Present	Present	–	Present
Indeno[1,2,3-cd]pyrene	–	–	Present	Present	–	–	Present	Present	Present	–	E 0.19	–	Present	–	–	Present
Isophorone	–	Present	Present	–	–	–	E 0.15	Present	–	Present	–	Present	Present	Present	–	–
Naphthalene	–	–	Present	–	–	–	Present	Present	–	Present	E 0.21	Present	Present	–	–	–
2-Nitrophenol	–	–	–	–	–	–	–	–	–	Present	–	–	–	–	–	–
4-Nitrophenol	< 1.3	–	–	Present	–	–	Present	E 0.33	Present	E0.34	–	E 0.40	–	E 0.29	–	–
N-Nitrosodiphenylamine	–	–	–	–	–	–	Present	Present	Present	Present	E 0.18	–	–	Present	–	–
Pentachlorophenol	E 0.49	Present	–	Present	–	E 0.57	Present	Present	E 0.86	E0.31	E 0.43	E 0.50	Present	Present	–	–
Phenanthrene	Present	–	Present	–	–	Present	Present	E 0.19	E 0.19	Present	0.65	Present	Present	Present	–	Present
Phenol	–	Present	Present	–	–	0.37	E 0.20	E 0.14	Present	0.32	2.1	E 0.15	–	Present	–	Present
Pyrene	Present	Present	E 0.18	E 0.18	–	Present	E 0.18	0.36	E 0.37	Present	0.63	Present	E 0.25	Present	–	E 0.19
1,2,4-Trichlorobenzene	–	–	Present	–	–	–	–	–	–	–	–	–	–	–	–	–
2,4,6-Trichlorophenol	–	–	–	–	–	–	–	–	–	–	–	E 0.20	–	–	–	–

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

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