When should a facility update its SWPPP?

A facility should update its Storm Water Pollution Prevention Plan (SWPPP) whenever there is a change in operations or a significant alteration in pollutant sources. This is crucial because the effectiveness of a SWPPP depends on accurately reflecting the current conditions, practices, and potential sources of pollution at the facility.

Changes in operations might include modifications to processes, new equipment, or additional facilities that could affect the types and amounts of pollutants being discharged. Similarly, if there are significant alterations in potential pollutant sources—such as the introduction of new materials, a change in waste disposal methods, or any other factors that could impact water quality—these should prompt an immediate review and update of the SWPPP.

Updating the SWPPP ensures compliance with regulations and helps maintain the facility's commitment to preventing stormwater pollution. Regular and timely updates also enable a facility to adapt its practices in response to new information, technological developments, or changes in regulatory requirements, thereby safeguarding public health and the environment.