Yes, rainwater collection is legal in Peru, but compliance hinges on adherence to water resource management laws and local regulations. The National Water Authority (ANA) and regional governments oversee permits, particularly for systems exceeding 50 m³ storage or impacting shared watersheds. Recent 2026 amendments to the Water Resources Law (Law No. 29338) tighten oversight for agricultural and industrial use, requiring prior authorization from ANA or regional authorities. Domestic, non-commercial systems under 50 m³ typically face no legal barriers, provided they do not divert natural flows or violate sanitation standards.
Key Regulations for Rainwater Collection in Peru
- Water Resource Permits: Systems storing over 50 m³ or diverting runoff require ANA or regional approval under Decreto Supremo No. 007-2017-MINAGRI, which enforces sustainable extraction limits.
- Sanitation Compliance: Collected water must meet D.S. No. 031-2010-SA standards if used for potable purposes, mandating filtration and disinfection to prevent public health risks.
- Land Use Restrictions: Regional governments (e.g., Lima’s Ordenanza Municipal No. 2412) may impose additional zoning rules, banning collection in flood-prone or protected areas to avoid ecosystem disruption.
Violations risk fines up to 1,000 UIT (approx. S/ 4.8M in 2024) or forced system dismantling, per Ley No. 30640. Commercial or large-scale projects must conduct environmental impact assessments (EIAs) under D.S. No. 019-2018-MINAM. Consult ANA’s Sistema Nacional de Información de Recursos Hídricos for watershed-specific constraints before installation.