Yes, rainwater collection is legal in Arkansas, but subject to state and local restrictions. The Arkansas Natural Resources Commission (ANRC) permits residential rainwater harvesting for non-potable uses, while commercial systems require permits. Local ordinances, particularly in urban areas, may impose additional constraints.
Key Regulations for Rainwater Collection in Arkansas
- ANRC Permitting: Systems exceeding 5,000 gallons require ANRC approval under the Arkansas Water Well Construction Standards Act. Smaller systems face fewer bureaucratic hurdles but must comply with structural safety codes.
- Non-Potable Use Mandate: Collected rainwater may not be used for drinking, cooking, or personal hygiene unless treated via ANRC-certified filtration. The Arkansas Department of Health (ADH) enforces potable water standards.
- Local Ordinance Variability: Cities like Little Rock and Fayetteville impose additional rules, such as setback requirements or tank height restrictions. The 2026 update to the Arkansas Stormwater Management Manual may further tighten guidelines for large-scale systems.
Compliance hinges on system size, intended use, and municipal jurisdiction. Consult the ANRC’s Rainwater Harvesting Guidelines and local planning departments before installation. Failure to adhere risks fines or forced system removal.