Irrigation Districts
- Benton Irrigation District
- Columbia Irrigation District
- Kittitas Reclamation District
- Roza Irrigation District
- Sunnyside Valley Irrigation District
- Yakima Tieton Irrigation District
City
- City of Benton City
- City of Kennewick
- City of Richland
- City of Pasco
- City of West Richland
- City of Yakima
- City of Sunnyside
- City of Prosser
- City of Ellensburg
- Other Washington Cities
County
Regional
- Columbia-Snake River Irrigators Association
- Family Farm Alliance
- National Water Resources Association
- Tri-City Industrial Development Council (TRIDEC)
- Yakima River Basin Integrated Plan
State
- State of Washington
- Washington State Department of Ecology
- Washington Department of Fish and Wildlife
- Washington State Water Resources Association
- Revised Code of Washington (RCW)
- (RCW) Title 87 Irrigation
- Secretary of State Washington State Archives