The City of Sunnyside Water Division flushes the water system twice annually. If you have any questions, please contact the Public Works office at (509) 837-5206. Residents may experience dis-colored water during and after flushing. Let water run for a couple minutes and wait for it to clear up. City will send out notices before flushing. 

2023 Flushing:

APRIL

• Tuesday, April 18, 2023 - 3:00 AM to 5:00 PM
• Wednesday, April 19, 2023 - 5:00 AM to 5:00 PM 
• Thursday, April 20, 2023 - 6:30 AM to 5:00 PM
• Friday, April 21, 2023 - 6:30 AM to 5:00 PM 

OCTOBER 

• Monday, October 23, 2023 - 300 AM - 4:00 PM
• Tuesday, October 24, 2023 - 5:00 AM to 4:00 PM
• Wednesday, October 25, 2022 - 6:30 AM to 4:00 PM 
• Thursday, October 26, 2022 - 6:30 AM to 4:00 PM
• Friday, October 27, 2022 - 6:30 AM to 4:00 PM