Regulatory requirements for storing stormwater vary by region but generally focus on protecting public health, water quality, and the environment. Most jurisdictions require stormwater storage systems to comply with local building codes, environmental regulations, and water management guidelines. This often includes permitting processes, site assessments, and engineering plans to ensure the system is designed to prevent contamination, overflow, and structural failure.
Systems must be properly sized to manage expected runoff volumes and incorporate features like first flush diverters and filtration to remove pollutants. In many areas, stormwater storage facilities must also be lined to prevent seepage into groundwater, especially in locations with high contamination risks or sensitive ecosystems. Liners like reinforced polyethylene (RPE) are commonly recommended or required because of their impermeability and resistance to UV and chemical exposure. Maintenance plans and regular inspections are typically mandated to ensure long-term performance and compliance.
