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Browsing Extension Service -- Miscellaneous / Educational Materials by Subject "Nitrogen in agriculture -- Oregon -- Willamette River Valley"

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Browsing Extension Service -- Miscellaneous / Educational Materials by Subject "Nitrogen in agriculture -- Oregon -- Willamette River Valley"

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  • Oregon State University. Extension Service; Feaga, Jeff; Selker, John S. (Corvallis, Or. : Extension Service, Oregon State University, 2004-01)
    According to the United States Geological Survey, 9 percent of wells in the Willamette Valley exceed the EPA’s 10 ppm drinking water standard for nitrogen in the NO3– compound, or NO3–-N. A study of 281 domestic drinkin ...

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