Mesa Utilities customers follow a year-round watering schedule with seasonal frequency limits and prohibited daytime hours during summer. The rules conserve Salt River Project and Central Arizona Project supplies amid Colorado River shortage declarations.
Mesa receives raw water from the Salt River Project (SRP) and Central Arizona Project (CAP), both of which are under tightened delivery during the Tier shortage on the Colorado River. The city's water conservation rules prohibit watering between 10 a.m. and 6 p.m. May through September, limit overspray onto streets and sidewalks, and require automatic shutoffs on irrigation systems. Customers receive education and warnings before fines escalate. Mesa has not imposed mandatory rationing as of 2026 but operates under a Drought Management Plan that can trigger stricter stages.
First violations bring written notice; repeat overspray, daytime watering, or broken irrigation can be cited by Code Compliance with civil penalties and water service surcharges.
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