Water restrictions in Yakima County, WA — also called the watering schedule, outdoor irrigation rules, or drought ordinance — set which days and hours you can run sprinklers or irrigation.
Water is Yakima's defining issue. Washington follows prior appropriation, and the Yakima River Basin is fully appropriated and adjudicated. Irrigation districts deliver seasonal water by seniority, and junior rights face curtailment in drought years.
The Yakima Valley runs on irrigation. Washington is a prior-appropriation state, so surface and groundwater withdrawals require a water right from the Department of Ecology, and the Yakima Basin is fully appropriated under the decades-long Acquavella adjudication. Most valley water reaches homes and farms through irrigation districts such as Roza and Sunnyside Valley, which ration by priority date; in dry years junior, proratable rights are cut first. A permit-exempt household well may water up to a half-acre lawn or garden, but new wells in the closed basin can require mitigation. City of Yakima customers follow utility conservation rules, tighter in drought.
Watering outside your district's or utility's schedule brings warnings, surcharges, and escalating fines, and drought-year curtailment can cut junior irrigation deliveries entirely. Unauthorized withdrawal without a water right is an Ecology enforcement matter.
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