Water restrictions in Pasco, WA — also called the watering schedule, outdoor irrigation rules, or drought ordinance — set which days and hours you can run sprinklers or irrigation.
Pasco runs its own non-potable irrigation utility and asks customers to follow a voluntary watering schedule by address: even-numbered addresses water Tuesday, Thursday and/or Sunday; odd-numbered addresses water Monday, Wednesday and/or Saturday. The irrigation season typically runs April through October. PMC 13.85.180 prohibits wasting irrigation water.
Pasco operates a separate city-supplied irrigation water utility delivering non-potable water for outdoor use, kept distinct from treated drinking water. The city publishes a watering schedule based on house-number parity: even-numbered addresses (ending 0, 2, 4, 6, 8) water on Tuesday, Thursday, and/or Sunday, and odd-numbered addresses (ending 1, 3, 5, 7, 9) water on Monday, Wednesday, and/or Saturday. The city describes this as a voluntary schedule that spaces out watering days to prevent pressure drops and keep service reliable during peak summer demand. Pasco recommends watering early in the morning (before 9 a.m.) or after sunset to reduce evaporation. The irrigation season usually runs April through October depending on weather; for 2026 the city scheduled the system to turn on Friday, April 10, 2026. While the day-of-week schedule is voluntary, PMC 13.85.180 (Use of water for irrigation) makes water-efficiency mandatory: irrigation customers are expected to use water efficiently, must not permit the waste of water, and must promptly repair broken pipelines or malfunctioning sprinklers. The Director may shut off service for violations of the irrigation utility rules. Free water-conservation kits (showerheads, aerators, leak-detection tablets) are available to Pasco water customers at City Hall.
The day-of-week schedule is voluntary, but wasting irrigation water or failing to repair broken lines or sprinklers violates PMC 13.85.180; the Director may shut off irrigation service to a violating property.
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See how Pasco's water restrictions rules stack up against other locations.
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