Rainwater Harvesting: Hesperia vs San Bernardino
How do rainwater harvesting rules compare between Hesperia, CA and San Bernardino, CA?
Hesperia and San Bernardino have similar restriction levels.
Hesperia, CA
San Bernardino County
Rainwater harvesting is broadly legal in California under AB 1750 (Rainwater Capture Act of 2012, codified at Water Code §10574). Hesperia has no specific local ordinance regulating residential rain barrels; harvesting from rooftops for non-potable landscape use is allowed without a permit. Larger cisterns or any potable use require state and county health department approval.
View full Hesperia rules →San Bernardino, CA
San Bernardino County
Rainwater harvesting for irrigation is legal in San Bernardino under the CA Rainwater Capture Act of 2012. Simple rooftop barrels up to 5,000 gallons need no permit; pressurized systems need plumbing permits.
View full San Bernardino rules →Key Facts Comparison
| Fact | Hesperia | San Bernardino |
|---|---|---|
| State Authority | AB 1750 — Cal. Water Code §10574 | - |
| Permit (rain barrels) | Not required for outdoor non-potable use | - |
| Permit (indoor reuse) | Required — CA Plumbing Code Ch. 17 | - |
| Mosquito Control | Must be screened/sealed (HSC §2270) | - |
| Avg Annual Rainfall | ~6-7 inches (High Desert) | - |
| Local Ordinance | None specific in HMC | - |
| State authority | - | Rainwater Capture Act AB 1750 authorizes rooftop capture |
| Permit-exempt | - | Gravity rain barrels under 5,000 gal typically no permit |
| Plumbing code | - | CPC Chapter 17 governs larger or pressurized systems |
| Cross-connection | - | Backflow prevention required if tied to potable plumbing |
| Vector control | - | Tanks must be screened to prevent mosquito breeding |
Highlighted rows indicate differences between cities.
Hesperia FAQ
Can I install rain barrels at my Hesperia home?
Yes. Under the California Rainwater Capture Act (Water Code §10574) and absent any local prohibition in Hesperia's code, rain barrels for outdoor landscape use are allowed without a permit. They must be screened to prevent mosquito breeding.
Do I need a permit to harvest rainwater in Hesperia?
No permit is required for residential rooftop systems used for outdoor non-potable irrigation. Indoor use (toilet flushing, laundry) requires a city building permit and California Plumbing Code Chapter 17 compliance.
San Bernardino FAQ
Do I need a permit for a rain barrel in San Bernardino?
A simple downspout rain barrel feeding landscape drip irrigation generally needs no permit, as long as it discharges on your own lot and is not connected to house plumbing.
Can I use rainwater for toilets or laundry?
Yes but only through a permitted system that meets CPC Chapter 17 requirements, including backflow prevention and inspection by the Building Division.
Is there a rebate for installing rainwater systems?
Regional water agencies and Metropolitan Water District periodically offer rebates per gallon of storage; check SBMWD and MWDH2O.com for current programs.
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