Stormwater Top Pollution Prevention Tips

Operational Best Management Practices (BMPs)

Use of Oil/Water Separators

High Use Vehicle Areas

Vehicle and Equipment Washing

Where possible, vehicle and equipment washing should be done indoors, where contaminated washwater can be discharged to the sanitary sewer.

Landscaped Areas

Landscaped areas have the potential to contribute nutrients, pesticides and fecal coliform bacteria (through animal waste, fertilizer, and compost) to stormwater runoff. They can also collect litter, and poorly maintained areas may impede stormwater drainage.

On the plus side, landscaped areas can be used to spread out and reduce the volume and velocity of runoff, remove sediment, and function as multi-use areas (for example, temporary stormwater detention in recreational fields).

Erosion and Sediment Control

Source Control

Source control BMPs are the only BMPs which are 100% effective. If a pollutant never gets into runoff, then it never has to be taken out. As a general rule, take the following steps:

  1. Alter the pollutant source activity to prevent release.
  2. Enclose, cover, or contain activities.
  3. Provide containment for control of leaks and spills.
  4. Discharge contaminated stormwater to a sanitary sewer or process water treatment.

Related information

Stormwater is a page from Water Quality that discusses prevention of polluted runoff.

Stormwater Management and Design Manuals offer guidance.