Advanced BMPs are not generally required unless a facility cannot control pollutants with the minimum BMPs; however, many sites already have some type of advanced BMPs in place. Advanced BMPs will be required if a site has pollutant exceedances and enters Level 1 and Level 2 Status. Advanced BMPs include:
- Exposure Minimization BMPs: Additional covered areas.
- Stormwater Containment and Discharge Reduction BMPs: Diversion, infiltration, retainment and reuse.
- Treatment Control BMPs: Storm water treatment systems may be necessary to achieve sample results below annual or instantaneous NALs.
- Other Advanced BMPs