Rainwater Harvesting: Green Valley vs Marana
How do rainwater harvesting rules compare between Green Valley, AZ and Marana, AZ?
Green Valley and Marana have similar restriction levels.
Green Valley, AZ
Pima County
Arizona actively encourages rainwater harvesting. AZ HB 2675 protects homeowners from HOA prohibitions on rainwater collection systems. Pima County and the City of Tucson have been national leaders in rainwater harvesting policy. No permit required for residential cisterns under 2,500 gallons.
View full Green Valley rules →Marana, AZ
Pima County
Arizona actively encourages rainwater harvesting. HB 2675 prevents HOAs from prohibiting rainwater collection systems. Marana supports rainwater harvesting as a water conservation strategy, and no permits are required for standard residential rain barrels and cisterns.
View full Marana rules →Key Facts Comparison
| Fact | Green Valley | Marana |
|---|---|---|
| State Law | HB 2675 protects from HOA bans | - |
| Cistern Permit | Not required under 2,500 gallons | - |
| Gray Water | ADEQ General Permit 4.02 (under 400 gpd) | - |
| Annual Rainfall | 11-12 inches (monsoon-dominant) | - |
| HOA Protection | ARS 33-1816 | ARS 33-1808 (HB 2675) prevents bans |
| Legal Status | - | Encouraged; no permit for standard systems |
| Tax Credit | - | Arizona state tax credit available |
| Large Systems | - | Building permit may be needed |
Highlighted rows indicate differences between cities.
Green Valley FAQ
Can my HOA ban my rain barrel?
No. Arizona HB 2675 (ARS 33-1816) prohibits HOAs from banning rainwater harvesting systems. The HOA may impose reasonable design guidelines but cannot prohibit the system itself.
Do I need a permit for a gray water system?
Residential gray water systems producing fewer than 400 gallons per day are covered by ADEQ General Permit 4.02 and do not need a site-specific permit. The system must irrigate plants, not discharge to surface water.
Marana FAQ
Can I collect rainwater in Marana?
Yes. Arizona encourages rainwater harvesting, and no permit is needed for standard rain barrels and cisterns. Your HOA cannot prohibit harvesting systems under ARS 33-1808.
Is there a limit on how much rainwater I can collect?
Arizona does not limit residential rainwater collection volume. Larger cistern systems connected to household plumbing may require a building permit.
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