Rainwater Harvesting: Altadena vs South Gate
How do rainwater harvesting rules compare between Altadena, CA and South Gate, CA?
Altadena and South Gate have similar restriction levels.
Altadena, CA
Los Angeles County
Rainwater harvesting is legal and actively encouraged in unincorporated LA County. LADWP offers rebates for rain barrels. The LACFCD promotes distributed stormwater capture projects including rain gardens and rain barrels. No permits required for residential collection systems.
View full Altadena rules →South Gate, CA
Los Angeles County
South Gate has no local ordinance restricting residential rainwater harvesting. California Water Code § 10574 (Rainwater Capture Act of 2012) expressly authorizes capture of rainwater from rooftops for non-potable use without a water-right permit. Tanks remain subject to Title 24 building/plumbing standards and Ch. 9.48 nuisance rules for safety, anchoring, and overflow.
View full South Gate rules →Key Facts Comparison
| Fact | Altadena | South Gate |
|---|---|---|
| Legal Status | Legal, no permit required | - |
| Rebates | LADWP and water district programs | - |
| LACFCD | Promotes distributed capture | - |
| Uses | Irrigation, non-potable purposes | - |
| State authority | - | Cal. Water Code § 10574 (Rainwater Capture Act, AB 1750) |
| Permit required | - | Not for outdoor/non-potable use; building permit for plumbed systems or large tanks |
| Local code | - | Title 24 enforced via South Gate Municipal Code Ch. 9.02 |
Highlighted rows indicate differences between cities.
Altadena FAQ
Is rainwater harvesting legal in LA County?
Yes. California Water Code 10573-10574 explicitly permits residential rainwater collection. No permit is needed for systems under 5,000 gallons. It's actively encouraged for water conservation and stormwater management.
Can I use rainwater for drinking?
Captured rainwater can be used for irrigation and non-potable purposes. Using it for drinking water requires treatment and is subject to additional regulations. Most residential use is for landscape irrigation.
Are there rebates for rain barrels in LA County?
Some water districts offer $35-$75 rain barrel rebates. Check with your specific water provider. The LA County Flood Control District's Safe Clean Water Program also promotes rainwater capture. Visit safecleanwaterla.org for resources.
South Gate FAQ
Do I need a permit for a 50-gallon rain barrel?
No state water-right permit and typically no building permit for small outdoor barrels. Larger cisterns or any plumbing into the house require a permit through South Gate Building Division.
Can I drink harvested rainwater?
The Rainwater Capture Act authorizes non-potable use. Potable use requires Title 24 plumbing compliance and treatment.
Compare other topics
See how Altadena and South Gate compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool