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509.837.5141 | P.O. Box 810, Sunnyside, WA 98944

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HOLIDAY OFFICE CLOSURE- Our office will be closed December 24th - 26th.

Normal office hours will resume Monday, Dec. 29th.

  • About Us
    • Roza Staff
    • Board of Directors
    • History of the Roza
    • Historic Photographs
    • System Information
    • News
    • Yakima Basin Water Supply
    • Maps
  • Governance
    • RSBOJC
    • District Rules and Regulations
    • By-Laws
    • RRA Rules & Regulations
    • Title 87
    • WA Dig Law
  • Water Quality
    • RSBOJC Water Quality Program
    • RSBOJC 1997-2008 Water Quality Improvements
    • Roza WQ Information for Management Plan
    • Roza Canal Sampling
  • Aquatic Treatments
    • Chemical Labels
    • Chemical Treatment Schedule
    • Understanding Aquatic Treatments
    • Aquatic Treatment Background
  • Projects
    • Off Season Schedule
    • Project Bid Information
    • SEPA Project Checklist
  • Drought
    • 2025 Water Supply
    • Kachess Project
    • YBIP
    • RID Comprehensive Water Conservation Plan
      • FINAL CWCP REPORT
      • FINAL CWCP APPENDIX
  • Forms & Links
    • Forms
      • Job Application
    • STATE
      • LOCATES 811
      • WSWRA
    • NATIONAL
      • NWRA
      • NOAH
      • USBR
    • AREA IRRIGATION DISTRICTS
      • SVID
      • KID
      • KRD
  • About Us
    • Roza Staff
    • Board of Directors
    • History of the Roza
    • Historic Photographs
    • System Information
    • News
    • Yakima Basin Water Supply
    • Maps
  • Governance
    • RSBOJC
    • District Rules and Regulations
    • By-Laws
    • RRA Rules & Regulations
    • Title 87
    • WA Dig Law
  • Water Quality
    • RSBOJC Water Quality Program
    • RSBOJC 1997-2008 Water Quality Improvements
    • Roza WQ Information for Management Plan
    • Roza Canal Sampling
  • Aquatic Treatments
    • Chemical Labels
    • Chemical Treatment Schedule
    • Understanding Aquatic Treatments
    • Aquatic Treatment Background
  • Projects
    • Off Season Schedule
    • Project Bid Information
    • SEPA Project Checklist
  • Drought
    • 2025 Water Supply
    • Kachess Project
    • YBIP
    • RID Comprehensive Water Conservation Plan
      • FINAL CWCP REPORT
      • FINAL CWCP APPENDIX
  • Forms & Links
    • Forms
      • Job Application
    • STATE
      • LOCATES 811
      • WSWRA
    • NATIONAL
      • NWRA
      • NOAH
      • USBR
    • AREA IRRIGATION DISTRICTS
      • SVID
      • KID
      • KRD

Maps

System Map (Yakima County GIS)

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Roza Facilities Map

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Office Location:

125 S. 13th Street
Sunnyside, WA 98944

Mailing Address:

P.O. Box 810
Sunnyside, WA 98944

Office Phone:

509.837.5141
Office Fax: 509.836.4807

Hours of Operation:

Monday - Friday
7:30 AM – 4:30 PM

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