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Farm effects on runoff quality in Oregon's Tualatin River Basin. Part I, Farm survey, Washington County, Oregon

  • Farm effects on runoff quality in Oregon's Tualatin River Basin. Part I, Farm survey, Washington County, Oregon
  • Agricultural surveys -- Oregon -- Tualatin River Watershed
  • Agricultural pollution -- Oregon -- Tualatin River Watershed
  • Water quality -- Oregon -- Tualatin River Watershed
  • Tualatin River Watershed (Or.)
  • Nov-2000
  • Hillsboro, Or. : Washington County Soil & Water Conservation District

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