Industrial Stormwater Permit Guide

Your link to federal and state compliance resources

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Lesson 2: Permitting Options and Requirements

In addition to the general BMPs, you must implement specific measures to prevent or control pollutants in your stormwater discharges. The type, location, and implementation of all BMPs must be described for each area of your facility where industrial materials or activities are exposed to stormwater. When selecting BMPs consider how best to:

  • Prevent contact by stormwater with polluting materials. This is much more effective than trying to remove pollutants;
  • Use a combination of BMPs to more effectively minimize pollutant discharges
  • Select BMPs appropriate for the type and quantity of pollutants including their potential to impact receiving water quality;
  • Minimize impervious areas at your facility to reduce runoff and improve groundwater recharge and stream base flows;
  • Use open vegetated swales and natural depressions for the attenuation of flows;
  • Diverting flows from areas of materials handling, storage or use;
  • Implement conservation or restoration of riparian buffers;
  • Enhance the infiltration of runoff on site (including bioretention cells, green roofs, and pervious pavement), and
  • Install treatment interceptors (e.g., swirl separators and sand filters).

A national menu of Stormwater Best Management Practices (BMPs) is available at: http://cfpub.epa.gov/npdes/stormwater/menuofbmps/index.cfm. The menu cross-references many new resources from other organizations involved in stormwater management. The menu includes a comment feature so that stormwater practitioners and experts can provide suggestions, new data, and additional references.

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