Rainwater Harvesting: Camarillo vs Simi Valley
How do rainwater harvesting rules compare between Camarillo, CA and Simi Valley, CA?
Camarillo and Simi Valley have similar restriction levels.
Camarillo, CA
Ventura County
Rainwater harvesting is legal and encouraged in Camarillo under California Water Code Section 10574. Residents may collect rainwater from rooftops for irrigation without a permit.
View full Camarillo rules →Simi Valley, CA
Ventura County
Rainwater harvesting is legal and encouraged in unincorporated Ventura County under California Water Code Section 10574. No permit is required for residential rain barrels, and the county's watershed protection programs support stormwater capture.
View full Simi Valley rules →Key Facts Comparison
| Fact | Camarillo | Simi Valley |
|---|---|---|
| Legal Authority | CA Water Code Section 10574 | CA Water Code Section 10574 |
| Permit Threshold | 5,000 gallons (larger needs permit) | - |
| Permitted Use | Landscape irrigation (non-potable) | - |
| Rebates | Periodically available from water agencies | - |
| Mosquito Prevention | Covered storage required | Covered/screened containers required |
| Permit Required | - | No for standard rain barrels |
| Large Systems | - | Building permit for >5,000 gallons |
| Watershed District | - | (805) 654-2001 |
Highlighted rows indicate differences between cities.
Camarillo FAQ
Is rainwater harvesting legal in Camarillo?
Yes. California Water Code Section 10574 allows property owners to collect rainwater from rooftops. No permit is needed for systems under 5,000 gallons.
Can I use rainwater for drinking?
No. Collected rainwater may only be used for non-potable purposes such as landscape irrigation. Cross-connection to potable systems is illegal.
Are there rebates for rain barrels?
Regional water agencies periodically offer rain barrel rebates or giveaways. Contact Camrosa Water District at (805) 388-0226 for current programs.
Simi Valley FAQ
Is rainwater harvesting legal in Ventura County?
Yes. California Water Code Section 10574 explicitly authorizes collecting rainwater from rooftop surfaces. No permit is needed for standard residential rain barrels in unincorporated Ventura County.
Do I need a permit for a rain barrel?
Standard residential rain barrels do not require permits. Larger cistern systems exceeding 5,000 gallons may require a building permit to ensure structural safety and proper installation.
What can I use collected rainwater for?
Captured rainwater may be used for landscape irrigation, garden watering, car washing, and other non-potable outdoor uses. Using rainwater for indoor potable purposes requires treatment systems and health department approval.
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