Engineers widely use plastic chambers for retention and/or infiltration of stormwater. These systems are comprised of rows of open bottom arch-shaped chambers

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.

It's hard to believe, but it has been almost twenty years since Filterra bioretention was introduced as a high-flow stormwater treatment system. For those that

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

Stormwater regulations are calling for an increased level of treatment. This often takes the form of filtration systems. Two types of filtration systems used in

When I think about field monitoring, I often think about baseball. More specifically, I think about the knuckleball pitch. Since the knuckleball pitch has

Corrugated metal pipe (CMP) is the “go-to” material for most stormwater detention and infiltration projects. A wide range of gages, corrugations, and diameters

Early in my stormwater monitoring days, even though I had access to high-end automated samplers, flow meters, and data loggers, transferring said data required

To understand the physical and biological processes in a high-rate biofiltration system, it’s necessary to look at how each system component contributes to

High-rate biofiltration differs from traditional bioretention in that it has been optimized for high volume/flow treatment and high pollutant removal.