Stormwater Nutrient Loading Requirements: Then & Now
Regulatory Period Total Nitrogen (TN) Reduction Total Phosphorus (TP) Reduction Compliance Basis
Pre-2025 Not specified Not specified Design-based (BMPs, TSS 80%)
2025 & Beyond (Senate Bill 7040) 55% 80% Numeric, performance-based
Outstanding Florida Waters 80% 90% Numeric, performance-based
Impaired Waters (Redevelopment) 45% 80% Numeric, performance-based