Bioretention has been the principal form of Low-Impact Development (LID) used to slow, treat, retain and infiltrate stormwater runoff, mimicking a site's natural, pre-development hydrology. One aspect of bioretention that has some scientists and regulators concerned is the phenomenon known as nutrient leaching. Nutrient leaching occurs when the bioretention media, which often contains compost, breaks down and releases phosphorus to downstream receiving waters.

If you are involved in any aspect of stormwater management, no doubt you have heard the phrase "impaired waters."  The determination and subsequent listing of a

At the heart of every bioretention system is the media that captures and immobilizes pollutants that are then decomposed, volatilized and incorporated into the

As the New Jersey Department of Environmental Protection’s (NJDEP) certification program for Manufactured Treatment Devices (MTDs) has evolved over the years,

The International Stormwater Best Management Practices (BMP) Database project website (http://bmpdatabase.org) features a database that includes over 600 BMP