Rainwater harvesting is legal and encouraged in Mesa and throughout Arizona. The state has no restrictions on collecting rainwater for residential use, and many Arizona programs provide financial incentives.
Arizona actively encourages rainwater harvesting as a water conservation tool. Mesa residents can collect rainwater from rooftops and other surfaces for landscape irrigation and other non-potable uses without any permit. Arizona law permits rainwater use even for potable purposes, though treatment is recommended. Rainwater harvesting reduces demand on municipal water supplies and is well-suited to Mesa's desert climate with seasonal monsoon rains. The Arizona Department of Water Resources promotes rainwater collection as an effective conservation strategy. Rain barrels and cisterns of any size are permitted on residential property.
There are no penalties or restrictions on residential rainwater harvesting in Arizona. It is fully legal and encouraged by state and local policy.
Mesa, AZ
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Mesa, AZ
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Mesa, AZ
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Mesa, AZ
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Mesa, AZ
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Mesa, AZ
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Side-by-side rule comparisons with other cities in Maricopa County.
See how other cities in Maricopa County handle rainwater harvesting.
See how Mesa's rainwater harvesting rules stack up against other locations.
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