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Commercial Stormwater BMP Maintenance

The Best Management Practices Maintenance task is part of the Complyrs Commercial Stormwater Compliance Program.

Commercial Stormwater BMP Maintenance


Stormwater Best Management Practices (BMPs) are the cornerstone of any Stormwater Pollution Prevention Plan (SWPPP). As such, how commercial stormwater BMPs are maintained at a facility is essential to effectively preventing stormwater pollution. BMPs can be grouped into two categories:

  • Source Control: physical barriers, and standard practices designed to prevent stormwater from pollution.
  • Treatment Control: mostly physical barriers and systems designed to remove pollutants from stormwater after the fact.

Inspection Methods

For source controls, physical barriers that prevent stormwater pollution should be inspected for effectiveness. For example, are tarps being kept in place over materials? Watching staff conduct activities that are subject to BMPs and evaluating performance standards is another way of inspecting  and maintaining commercial stormwater BMPs. Any deviations from the standards set forth in BMPs should be part of annual (or more frequent) training to ensure facility staff are performing and maintaining commercial stormwater BMPs as required.

For treatment controls, these should also be inspected at least annually. Often BMPs will need to be inspected by a third party vendor who understands how a BMP needs to be configured and maintained to be most effective.


As with most environmental tasks, documenting inspections and any corrective actions (including modifications to training) is as important as actually doing the task. Complyrs has an excellent form that can be used to document BMP inspections and maintenance. You can sign up for Complyrs using the green button below.


CASQA has an excellent guide to BMP Implementation and Evaluation. This guide is designed with Municipalities in mind. It can be adapted to suit non-municipal businesses.

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