Rainwater Harvesting: Costa Mesa vs Santa Ana
How do rainwater harvesting rules compare between Costa Mesa, CA and Santa Ana, CA?
Costa Mesa and Santa Ana have similar restriction levels.
Costa Mesa, CA
Orange County
California law encourages rainwater harvesting, and Costa Mesa permits residents to collect and store rainwater for irrigation and non-potable uses without a permit for systems under 5,000 gallons. Rebates may be available through Mesa Water District.
View full Costa Mesa rules →Santa Ana, CA
Orange County
Rainwater harvesting is legal and encouraged in Santa Ana under California Water Code Section 10574. Residential rain barrels up to a reasonable size typically do not require permits. The city promotes water conservation through stormwater capture.
View full Santa Ana rules →Key Facts Comparison
| Fact | Costa Mesa | Santa Ana |
|---|---|---|
| State Law | AB 1750 Rainwater Capture Act | Water Code §10574 |
| No Permit Needed | Systems under 5,000 gallons | - |
| Use | Irrigation and non-potable only | - |
| Mosquito Prevention | Containers must be covered | - |
| Rebates | Check Mesa Water District | - |
| Legality | - | Legal — encouraged |
| Permit Required | - | No (standard rain barrels) |
| Approved Use | - | Landscape irrigation |
| Potable Use | - | Not without treatment |
Highlighted rows indicate differences between cities.
Costa Mesa FAQ
Is it legal to collect rainwater in Costa Mesa?
Yes. California's Rainwater Capture Act of 2012 allows residential rainwater collection without permits for systems under 5,000 gallons.
Are there rebates for rain barrels in Costa Mesa?
The Mesa Water District and Orange County Water District may offer rebates. Check their websites for current programs and eligibility.
Can I drink collected rainwater in Costa Mesa?
No, not without proper treatment and permitting. Residential rainwater harvesting is intended for irrigation and non-potable outdoor uses.
Santa Ana FAQ
Can I collect rainwater in Santa Ana?
Yes. Rainwater harvesting is legal under California Water Code Section 10574. Standard rain barrels for landscape irrigation do not require a permit.
Can I use rainwater for drinking?
Harvested rainwater may be used for landscape irrigation but requires treatment and compliance with health regulations before potable use.
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