Plain English Guide to Regulations
Wastewater Discharges

 

Storm Water Permits

Unless your metal finishing facility meets the definition of "no exposure," then you need a stormwater discharge permit. There are two types of NPDES industrial storm water permits: general and individual permits. In either case, you apply for coverage to your NPDES stormwater control authority. As discussed, above, for most states this is your environmental regulatory agency. For certain states this is your Regional EPA office.

  • General Permits. Most industrial facilities have permit coverage under a statewide general permit that covers stormwater discharges from industrial facilities within the state. To obtain coverage under a statewide permit, you must submit a Notice of Intent (NOI) to your state agency (or EPA Regional office if you are in an unauthorized state). Most state general permits have similar requirements, such as:
    • You must develop and implement a Stormwater Pollution Prevention Plan (SWPPP), which specifies Best Management Practices (BMPs) that will prevent all pollutants from contacting stormwater.
    • Perform regular inspections to ensure your compliance with all BMPs.
  • Individual Permits. There are certain circumstances where a general permit is either not available or not applicable to a specific facility. In this type of situation, a facility operator must obtain coverage under an individual permit that the NPDES permitting authority will develop with requirements specific to the facility. This is an involved process, and you should contact your state water pollution control agency for advice.

More information:

More information on storm water discharge and oil spill prevention requirements coming soon.