Sources of stormwater pollution that inspectors will typically look for include, but are not limited to, the following:

  • Discharge from commercial vehicle washing, equipment washing, or power washing into the storm drainage system.
  • Evidence that work areas such as oily service bays are being hosed out and discharged into the storm drainage system.
  • Evidence of dumping materials and waste into the storm drainage system including materials such as concrete, paint, automotive fluids, etc.
  • Leakage from barrels and other outdoor containers.
  • Failure to properly manage leaks and spills.
  • Open or leaking dumpsters.
  • Mismanagement of hazardous wastes.
  • Oily, dirty items (such as engine parts or grills) and open containers of liquids or other materials that are left outdoors and exposed to rainfall.
  • Exposure of process activities and equipment to rainfall that is likely to result in pollutant wash-off.
  • Track-out of sediment and other materials from facilities onto roadways, and from indoor areas to outdoor areas.
  • Evidence of failure to maintain grease traps and interceptors.
  • Any other poor housekeeping practices that result in the exposure of pollutants to stormwater.

NOTE: The storm drainage system includes storm inlets, roadside drainage ditches and all man-made and natural water conveyance systems such as channels, creeks, etc.

Posted in: Industrial Stormwater Permit