Do I need a permit to collect rainwater in North Dakota?

Typically no for residential rooftop collection used for gardens or lawn irrigation. Permits are required only for appropriations exceeding 12.5 acre-feet per year or commercial-scale diversions.

Can I use harvested rainwater for drinking?

Indoor potable use is allowed but must comply with state plumbing code, including backflow prevention and treatment requirements. Most homeowners use rainwater only for outdoor non-potable purposes.

North Dakota Rainwater Harvesting (2026)

Key Facts

Residential rooftop: Generally allowed
Permit threshold: 12.5 acre-feet/year
Statute: N.D.C.C. ch. 61-04
Regulator: Department of Water Resources
Potable use: Plumbing code applies

Source: North Dakota Legislative Branch

Full Breakdown

North Dakota does not impose statewide restrictions on residential rainwater harvesting from rooftops or building surfaces. The State Engineer regulates water appropriation under N.D.C.C. ch. 61-04, requiring permits for diversions exceeding 12.5 acre-feet per year or for any commercial use. Rooftop collection for landscape irrigation, gardening, and non-potable household use generally falls outside permit thresholds. Potable indoor use may trigger plumbing code requirements. North Dakota recognizes prior appropriation doctrine, so large-scale capture that diminishes downstream flows may require a permit from the Department of Water Resources.

Violations & Penalties

Unpermitted appropriation exceeding state thresholds may result in cease-and-desist orders and civil penalties under N.D.C.C. 61-04-08.

North Dakota Rainwater Harvesting and Water Rights

Key Facts

Full Breakdown

Violations & Penalties

Frequently Asked Questions

Sources

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