Webinar – Using Bioretention Soils to Remove Pollutants from Stormwater Runoff
Stormwater professionals have been embracing low impact development (LID) approaches to managing runoff and pollutant loading. Rainwater alone contains trace amounts of pollutants; however stormwater runoff plays a key role in contaminate transport. Bioretention practices use engineered soils to temporarily store, treat and infiltrate stormwater runoff. A key component of these practices is the bioretention soil media as the performance of bioretention soils is partially dependant of the constituents and texture of the soil. Therefore it is important to verify the quality of bioretention soils at the project constructions phase. Questions remain regarding the risk of contamination and the extent of maintenance for bioretention soils. Credit Valley Conservation (CVC), a recognized leader in LID implementation and assessment, is collecting information in order to address these questions. The focus of the soil sampling component of CVC’s LID monitoring program is tracking the quality of bioretention soils for contaminate tracking and evaluating the need for maintenance activities such as filter media replacement. This webinar will review assumption protocols for bioretention soils to ensure that they function properly, the level of risk for contamination of bioretention soils and insights on how to inspect and determine if maintenance of these soils is required.