Is Collecting Rainwater Legal in Oregon? (2026)
Partially — Collecting Rainwater is legal with restrictions in Oregon as of 2026.
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Quick Answer
Oregon allows rainwater harvesting but regulates it under the state's water rights system. Small-scale collection for domestic use is generally permitted without a water right, but larger collection or commercial use requires a permit (ORS 537.545).
What the Law Says
It is legal to collect rainwater that falls on your roof or other impervious surfaces. To use rainwater for drinking water, you'll need to apply for permits and meet standards set by the Oregon Building Codes Division.
— Oregon Water Resources Department
| Category | Details |
|---|---|
| Collection Rules | Allowed for domestic use without permit; permits required for larger scale or commercial use. |
| Volume Limits & Permits | Sale requires appropriate water rights or permits. |
| Violation Penalties | Civil penalties for unauthorized water use. |
| Pending Legislation | None known |
Enforcement Reality
Local Exceptions
None identified. State law applies uniformly across Oregon. Local ordinances may still vary — check with your city or county government for any additional rules.
Bottom Line
Collecting Rainwater is legal with restrictions in Oregon. This activity is permitted, but specific conditions apply. Violating those conditions can result in fines or criminal charges. Read the rules carefully and consult an attorney if unsure.
Oregon vs. the Rest of the US
Across the US, collecting rainwater is fully legal in 30 states, restricted in 20, and illegal in 0. Oregon falls in the RESTRICTED category.
View the full 50-state map →Neighboring States
Laws change at state lines. Here is how bordering states compare on Collecting Rainwater:
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Frequently Asked Questions
Is collecting rainwater legal in Oregon?
What are the restrictions on collecting rainwater in Oregon?
Does the law on collecting rainwater change at the Oregon border?
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Reviewed by cross-referencing the cited state statute against current legislative databases and regulatory publications.
Sources & Verification
This page was reviewed by Ethan Harper by comparing the legal status against the cited state statute. AllowedHere is an informational resource and does not provide legal advice. Consult a licensed attorney for guidance specific to your situation.
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