Yes, rainwater collection is legal in Costa Rica, but compliance hinges on adherence to the Ley de Aguas (Water Law No. 276) and municipal ordinances. The Instituto Costarricense de Acueductos y Alcantarillados (AyA) regulates large-scale systems, while local governments enforce smaller-scale rules. Recent 2026 amendments emphasize sustainable use, requiring permits for systems exceeding 5,000 liters or commercial purposes.
Key Regulations for Rainwater Collection in Costa Rica
- Permit Requirements: Systems over 5,000 liters or used for agriculture/commerce require approval from AyA under Decreto Ejecutivo No. 42498-MINAE (2021). Exemptions apply to household use under 5,000 liters, but local municipalities may impose additional restrictions.
- Water Quality Standards: Collected rainwater must meet Reglamento de Calidad del Agua (Executive Decree No. 32327-S) for potable use. Non-potable systems must be clearly labeled to prevent misuse.
- Environmental Impact: Projects near protected watersheds or exceeding 10,000 liters trigger environmental impact assessments per Ley Forestal (Law No. 7575). Violations may result in fines or system dismantling under Ley de Biodiversidad (Law No. 7788).