Why is follow-up monitoring important in a SWPPP?

Follow-up monitoring is crucial in a Storm Water Pollution Prevention Plan (SWPPP) because it helps to ensure that Best Management Practices (BMPs) continue to function properly. The effectiveness of BMPs can change over time due to various factors such as weather conditions, site changes, or deterioration of equipment. Regular monitoring allows for the identification of any failures or inefficiencies in the BMPs, ensuring that they are effectively controlling pollutants as intended. This ongoing oversight is essential to maintaining compliance with water quality standards and preventing environmental harm, ultimately supporting the overall goals of the SWPPP.