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🌿 Landscaping Rules/Rainwater Harvesting

Rainwater Harvesting: Petaluma vs Santa Rosa

How do rainwater harvesting rules compare between Petaluma, CA and Santa Rosa, CA?

Petaluma and Santa Rosa have similar restriction levels.

Petaluma, CA

Sonoma County

Few Restrictions

The 2012 Rainwater Capture Act allows California residents to capture rainwater from rooftops for non-potable outdoor use without a state water-right permit, preempting most local barriers.

View full Petaluma rules β†’

Santa Rosa, CA

Sonoma County

Few Restrictions

The 2012 Rainwater Capture Act allows California residents to capture rainwater from rooftops for non-potable outdoor use without a state water-right permit, preempting most local barriers.

View full Santa Rosa rules β†’

Key Facts Comparison

FactPetalumaSanta Rosa
StatuteWater Code 10573Water Code 10573
Permit neededNo for rooftop barrelsNo for rooftop barrels
UseNon-potable outdoor onlyNon-potable outdoor only
Code referenceTitle 24 Part 5 Ch 17Title 24 Part 5 Ch 17

Highlighted rows indicate differences between cities.

Petaluma FAQ

Do I need a state water right to collect rain?

No. The Rainwater Capture Act exempts rooftop rainwater collected on the property where it falls from the appropriative water rights system.

Can a city ban rain barrels entirely?

No. State law authorizes residential rooftop capture, though cities may regulate large cisterns, plumbing connections, and structural permits.

Santa Rosa FAQ

Do I need a state water right to collect rain?

No. The Rainwater Capture Act exempts rooftop rainwater collected on the property where it falls from the appropriative water rights system.

Can a city ban rain barrels entirely?

No. State law authorizes residential rooftop capture, though cities may regulate large cisterns, plumbing connections, and structural permits.

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