Water restrictions in Kennewick, WA — also called the watering schedule, outdoor irrigation rules, or drought ordinance — set which days and hours you can run sprinklers or irrigation.
Most outdoor irrigation in Kennewick runs on Kennewick Irrigation District water, not city potable water. KID activates a mandatory address-based watering schedule during declared droughts under its junior Yakima River water rights, which are governed by RCW 90.03.
RCW 90.03 sets Washington's prior-appropriation water rights system, and the Kennewick Irrigation District holds junior rights drawn from the drought-prone Yakima River. When supply tightens, KID can declare a mandatory schedule: even-address customers water Tuesday, Thursday, and Sunday; odd-address customers water Monday, Wednesday, and Saturday. The schedule was first triggered citywide on July 7, 2024, and lifted August 4, 2024. Allowed use is 20 minutes per zone, three times per week. Drip irrigation and hand-held hose watering are exempt and encouraged. KID has more than 23,000 unmetered accounts, and the staggered odd/even schedule keeps the canal system in balance. City potable water from Kennewick Public Works does not currently impose a year-round outdoor schedule but follows state-level drought declarations under RCW 43.83B.
KID can issue mandatory-schedule warnings and shut off non-compliant accounts during a declared schedule. Out-of-priority diversion of Yakima River water during drought can trigger Washington Department of Ecology enforcement under RCW 90.03.
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