District Members

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Region 1

  • Scott Mills
  • East Valley Water District
  • Hydrolox, LLC
  • Lacomb Irrigation District
  • Multnomah County Drainage District
  • Santiam Water Control District
  • Sidney Irrigation District
  • Tualatin Valley Irrigation District

Region 2

  • Eagle Point Irrigation District
  • Fort Vannoy Irrigation District
  • Grants Pass Irrigation District
  • Medford Irrigation District
  • Rogue River Valley Irrigation District
  • Sutherlin Water Control District
  • Talent Irrigation District

Region 3

  • Enterprise Irrigation District
  • Klamath Basin Improvement District
  • Klamath Drainage District
  • Klamath Irrigation District
  • Summer Lake Irrigation District

Region 4

  • Central Oregon Irrigation District
  • Arnold Irrigation District
  • North Unit Irrigation District
  • Ochoco Irrigation District
  • Swalley Irrigation District
  • Three Sisters Irrigation District
  • Tumalo Irrigation District

Region 5

  • East Fork Irrigation District
  • Farmers Irrigation District
  • Middle Fork Irrigation District
  • The Dalles Irrigation District

Region 6

  • Columbia Improvement District
  • Echo Irrigation District
  • Hermiston Irrigation District
  • Stanfield Irrigation District
  • Walla Walla River Irrigation District
  • West Extension Irrigation District
  • Westland Irrigation District

Region 7

    Region 8

    • Old Owyhee Ditch Improvement District
    • Owyhee Irrigation District
    • Ridgeview Irrigation District
    • Vale Oregon Irrigation District
    • Warmsprings Irrigation District