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 Assessment of Stormwater Best Management Practices
Level 4 - Monitoring
An assessment method that relies on natural rainfall and runoff. Sample collection and flow measurements are required to determine the mass of water and pollutants entering and leaving the system. More variables can be assessed with monitoring than with synthetic runoff testing. Monitoring results can have a larger associated uncertainty in assessed performance because of uncertainties and variability of the inflow. Below is a photo from a monitoring station containing sampling equipment:
Monitoring station housing sampling and flow measurement equipment near a rain garden, Burnsville, MN (Photo by Brooke Asleson)
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