Rainwater Harvesting: Atlanta vs Roswell
How do rainwater harvesting rules compare between Atlanta, GA and Roswell, GA?
Atlanta and Roswell have similar restriction levels.
Atlanta, GA
Fulton County
Rainwater harvesting is legal and encouraged. Rain barrels need no permit; larger cisterns tied to interior plumbing require a plumbing permit and backflow prevention to protect potable supply.
View full Atlanta rules →Roswell, GA
Fulton County
Georgia state plumbing code expressly authorizes rainwater harvesting for outdoor non-potable uses, preempting any local prohibition on residential rain barrels and cisterns.
View full Roswell rules →Key Facts Comparison
| Fact | Atlanta | Roswell |
|---|---|---|
| Rain Barrels | No permit required | - |
| Interior Cisterns | Plumbing permit required | - |
| Backflow Protection | Required | - |
| Allowed Uses | Irrigation, toilets | - |
| Incentives | DWM workshops/subsidies | - |
| Outdoor non-potable use | - | Allowed statewide |
| Code basis | - | Georgia Amendments to IPC |
| Administering agency | - | Dept. of Community Affairs |
| Permit needed | - | Plumbing system tie-in only |
Highlighted rows indicate differences between cities.
Atlanta FAQ
Roswell FAQ
Do I need a permit for a residential rain barrel?
Stand-alone rain barrels for garden irrigation generally require no permit. Permits are required when systems connect to building plumbing for indoor non-potable uses like toilet flushing.
Can rainwater be used for drinking?
No. Georgia code restricts harvested rainwater to non-potable uses such as irrigation, toilet flushing, and equipment washdown. Potable use requires meeting Safe Drinking Water Act treatment standards.
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